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Original Article:
2,3,7,8-tetrachlorodibenzo-p-dioxin decrease expression of aryl hydrocarbon receptor in peripheral lymphocyte of β-thalassemia major patients
Mahdi Ghatrehsamani, Masoud Soleimani, Behjat Al-Sadat Moayedi Esfahani, Mazdak Ganjalikhani Hakemi, Hedayatollah Shirzad, Nahid Eskandari, Minoo Adib
Adv Biomed Res
2015, 4:218 (28 September 2015)
DOI
:10.4103/2277-9175.166165
PMID
:26605247
Background:
β-thalassemia major is a hereditary disease with inefficient erythropoiesis. Level of inflammatory cytokine is elevated in these patients. In this study, we investigate the effect of aryl hydrocarbon receptor (AhR) ligand, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), on the expression of inflammatory mediators in β-thalassemia major patient's lymphocytes.
Materials and Methods:
Peripheral blood mononuclear cells of patients and healthy participants was isolated and cultured in favor of lymphocytes increment. Based on the treatment, we divided the cell into four groups. The orders of group's treatments were no treatment, tumor necrosis factor-α (TNF-α) treatment, TNF-α and TCDD treatment, TCDD treatment in Group 1–4, respectively. After cell culture, we extracted the cells RNA and converted them to cDNA. Real-time polymerase chain reaction was performed to assessment relative expression of caspase-1, NLRP3, and AhR. We compared all patient groups with equal healthy (control) groups.
Results:
Results showed that expression of caspase-1 in patients (Groups 1 and 2) was significantly lower than healthy individuals (
P
< 0.05). Although, no significant difference was found (Groups 1, 2, and control) in AhR gene expression (
P
> 0.05). Expression of AhR in other groups of patients (3 and 4) was significantly lower than control groups (
P
< 0.05). Expression of caspase-1 in Group 4 was significantly larger than the control group (
P
< 0.001).
Conclusions:
We show here that chronic inflammation decrease caspase-1 expression and exposure of human lymphocytes to TCDD promote caspase-1 expression. Furthermore, activation of AhR with TCDD decreases AhR expression in lymphocytes of β-thalassemia major disease.
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Original Article:
In silico
design of fusion protein of FimH from uropathogenic Escherichia coli and MrpH from Proteus mirabilis against urinary tract infections
Mehri Habibi, Mohammad Reza Asadi Karam, Saeid Bouzari
Adv Biomed Res
2015, 4:217 (28 September 2015)
DOI
:10.4103/2277-9175.166164
PMID
:26605246
Background:
Urinary tract infections (UTIs) caused by uropathogenic
Escherichia coli
(UPEC) and
Proteus mirabilis
are the most important pathogens causing UTIs. The FimH from type 1 pili of UPEC and the MrpH from
P. mirabilis
play critical roles in the UTI process and have presented as ideal vaccine candidates against UTIs. There is no effective vaccine against UTI and the development of an ideal UTI vaccine is required.
Materials and Methods:
In this study, we planned to design a novel fusion protein of FimH from UPEC and MrpH from
P. mirabilis
. For this purpose, we modeled fusion protein forms computationally using the Iterative Threading Assembly Refinement (I-TASSER) server and evaluated their interactions with toll-like receptor 4 (TLR4). The best fusion protein was constructed using overlap extension polymerase chain reaction (OE-PCR) and the biological activity of fusion was evaluated by the induction of interleukin-8 (IL-8) in the HT-29 cell line.
Results:
Our study indicated that based on the Protein Structure Analysis (ProSA)-web and the docking results, MrpH.FimH showed better results than did FimH.MrpH, and it was selected for construction. The results of bioassay on the HT-29 showed that FimH and MrpH.FimH induced significantly higher IL-8 responses than untreated cells or MrpH alone in the cell line tested.
Conclusions:
In the present study, we designed and constructed the novel fusion protein MrpH.FimH from UPEC and
P. mirabilis
based on
in silico
methods. Our bioassay results indicate that the MrpH.FimH fusion protein is active and capable of inducing immune responses.
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Original Article:
Tumor necrosis factor-α inhibits effects of aryl hydrocarbon receptor ligands on cell death in human lymphocytes
Mahdi Ghatrehsamani, Masoud Soleimani, Behjat A Moayedi Esfahani, Hedayatollah Shirzad, Mazdak G Hakemi, Majid Mossahebimohammadi, Nahid eskandari, Minoo Adib
Adv Biomed Res
2015, 4:216 (28 September 2015)
DOI
:10.4103/2277-9175.166163
PMID
:26605245
Background:
Activation of aryl hydrocarbon receptor (AhR) leads to diverse outcome in various kinds of cells. AhR activation may induce apoptosis or prevent of apoptosis and cell death. Recent studies suggest that apoptosis effects of AhR can be modulated by inflammatory cytokine like tumor necrosis factor alpha (TNF-α). In this study, we try to investigate the possible interaction of TNF-α with the 2, 3, 7, 8-tetrachlorodibenzo-p-dioxin (TCDD), a ligand of AhR, on peripheral lymphocytes.
Materials and Methods:
Human peripheral blood mononuclear cells (PBMCs) were isolated from peripheral blood by discontinuous density gradient centrifugation on ficoll. Isolated PBMCs were divided into four groups: Control group, TNF-α administered group, TCDD administered group, co-administered group with TCDD and TNF-α. Cells were maintained for a week in lymphocyte culture condition. Then, TNF-α was added to group 2 and 4. Finally, apoptosis and necrosis were analyzed in all samples using flowcytometry.
Result:
In group 4, the mean percent of necrosis and apoptosis in TCDD treatment groups was significantly larger than other groups; (
P
< 0.05). Furthermore, there was no significant difference between the mean percent of cell death in TNF-α administered group and TCDD administered group (
P
> 0.05). However, the mean percent of cell death in co-administered group with TCDD and TNF-α was significantly lower than other groups; (
P
< 0.05).
Conclusion:
TNF-α could significantly inhibit effects of TCDD on lymphocytes apoptosis. Combination effects of TNF-α and TCDD on lymphocyte increase cell survival.
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Original Article:
Median and ulnar nerve injuries; what causes different repair outcomes?
Mohammad Hadi Nouraei, Alireza Hosseini, Shadi Salek, Farhad Nouraei, Roya Bina
Adv Biomed Res
2015, 4:215 (28 September 2015)
DOI
:10.4103/2277-9175.166162
PMID
:26605244
Background:
Peripheral nerve injuries have significant effects on patients' life quality. To make patients' therapeutic expectations more realistic, prediction of repair outcome has significant importance.
Materials and Methods:
Totally, 74 patients with 94 nerve injuries (44 median and 50 ulnar nerves) were evaluated and followed up for 5 years between 2008 and 2013 in two main university hospitals of Isfahan. Patients' age was 6–64 years. 24 nerves were excluded from the study and among the remaining; 53 nerves were repaired primarily and 17 nerves secondarily. 42 nerves were injured at a low-level, 17 nerves at intermediate and 11 at a high one. Medical Research Council Scale used for sensory and motor assessment. S
3+
and S
4
scores for sensory recovery and M
4
and M
5
scores for motor recovery were considered as favorable results. The follow-up time was between 8 and 24 months.
Results:
There was no significant difference between favorable sensory outcomes of median and ulnar nerves. The difference between favorable motor outcomes of the median nerve was higher than ulnar nerve (
P
= 0.03, odds ratio = 2.9). More favorable results were seen in high-level injuries repair than low ones (
P
= 0.035), and also cases followed more than 18 months compared to less than 12 months (
P
= 0.041), respectively. The favorable outcomes for patients younger than 16 were more than 40 and older, however, their difference was not significant (
P
= 0.059).The difference between primary and secondary repair favorable outcomes was not significant (
P
= 0.37).
Conclusion:
In patients older than 40 or injured at a high-level, there is a high possibility of repetitive operations and reconstructive measures. The necessity for long-term follow-up and careful attentions during a postoperative period should be pointed to all patients.
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Original Article:
Potential health concerns of trace elements and mineral content in commonly consumed greenhouse vegetables in Isfahan, Iran
Mohammad Reza Abdi, Khadijeh Rezaee-Ebrahim-Saraee, Mehdi Rezvani Fard, Milad Baradaran-Ghahfarokhi
Adv Biomed Res
2015, 4:214 (28 September 2015)
DOI
:10.4103/2277-9175.166152
PMID
:26605243
Background:
This study aimed to investigate the potential health concerns of trace elements and mineral content of commonly consumed greenhouse vegetables in Isfahan, Iran.
Materials and Methods:
Six kinds of greenhouse vegetables namely;
Raphanus sativus
(Radish),
Cucumis sativus
(Cucumber),
Solanum lycopersicum
(Tomato), green
Capsicum annuum
(Green bell pepper), yellow
C. annuum
(Yellow bell pepper), and red
C. annuum
(Red bell pepper) were collected from Isfahan greenhouses, between December 2012 and March 2013. The vegetables were analyzed in order to determine the concentrations of trace elements and trace minerals using instrumental neutron activation analysis (INAA).
Results:
The results of INAA showed that the concentrations of aluminum, bromine, cobalt, rubidium and strontium of these vegetables were varied from 7.2 to 28.4 mg/kg, 0.6–11.7 mg/kg, 0.1–0.5 mg/kg, 4.2–8.4 mg/kg, and 12.0–141.0 mg/kg, respectively. The trace mineral concentrations of As, Cr, Cs, Sc, Th, and U in all of the samples were less than the defined tolerable upper intake level.
Conclusion:
The results of this study revealed that considering the measured trace elements and mineral content levels, Isfahan greenhouse vegetables do not impose any serious health harmful effects for individuals in the studied area due to their meal consumptions.
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Original Article:
The relation between serum Vitamin D levels and body antioxidant status in ischemic stroke patients: A case–control study
Laleh Afshari, Reza Amani, Farhad Soltani, Mohammad Hossein Haghighizadeh, Mohammad Reza Afsharmanesh
Adv Biomed Res
2015, 4:213 (28 September 2015)
DOI
:10.4103/2277-9175.166150
PMID
:26605242
Background:
Stroke is the second cause of death among elderly people. Oxidative stress plays an important role in brain damage after stroke. Currently, Vitamin D has been shown as an antioxidant. The aim of this study was to evaluate the status of Vitamin D, antioxidant enzymes, and the relation between them in ischemic stroke patients.
Materials and Methods:
This case–control study was carried out on 36 patients with ischemic stroke patients and 36 matched subjects as controls. Intake of fruits and vegetables, exposure of sunlight, serum lipid profile, concentrations of serum 25-dihydroxy Vitamin D (25(OH) D), activities of serum superoxide dismutase, and glutathione peroxidase enzymes were determined.
Results:
Severe Vitamin D deficiency was seen in 30% of the patients versus 11% of the controls (
P
< 0.05). Consumption of fruits and vegetables was lower in patients than that of controls (
P
< 0.05). Activities of antioxidant enzymes and intake of fruits were positively correlated in stroke patients (
P
= 0.02). The most potent predictors of stroke risk were hypertension, high levels of low-density lipoprotein cholesterol (LDL-C) and history of cardiovascular disease (CVD) (odds ratios: 3.33, 3.15, and 3.14, respectively,
P
< 0.05 for all). There was no association between 25(OH) D levels with activities of serum antioxidant enzymes and lipid profile in the two groups.
Conclusion:
Ischemic stroke patients have higher prevalence of severe Vitamin D deficiency and lower intakes of fruits and vegetables. Intake of fruits was positive correlated to higher antioxidant enzymes levels. High levels of blood pressure, history of CVD, and high LDL-C levels are the strongest predictors of ischemic stroke.
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Original Article:
Effects of cumin on nonalcoholic steatohepatitis: A double blind, randomised, controlled trial
Ahmad Shavakhi, Masoumeh Torki, Mahsa Khodadoostan, Sara Shavakhi
Adv Biomed Res
2015, 4:212 (28 September 2015)
DOI
:10.4103/2277-9175.166149
PMID
:26605241
Background:
This study was designed to evaluate the effect of cumin on nonalcoholic steatohepatitis (NASH) in compare to placebo.
Materials and Methods
: One hundred patients with histopathological diagnosis NASH in two groups of case and control received oral cumin capsule or placebo thrice daily for 6 months. Clinical and laboratory data were body mass index (BMI), serum triglyceride, serum total cholesterol, alanine aminotransferase (ALT), aspartate aminotransferase (AST), high-density lipoprotein (HDL), low-density lipoprotein (LDL), fasting blood sugar (FBS), steatosis grade, and side-effects and were measured at baseline and after treatment period using standard clinical chemistry techniques. The grade of steatosis was assessed by liver sonography in 3 stages (mild, moderate and severe).
Results
: Of 100 eligible patients during follow-up 10/50 cases and 9/50 controls were excluded. At baseline and after treatment BMI, triglyceride, cholesterol, ALT, AST, HDL, LDL, and FBS were not statistically significant between groups (
P
≥ 0.5). BMI, triglyceride, cholesterol, ALT, AST, LDL, and FBS after treatment decreased compare to baseline but were not statistically significant (
P
≥ 0.5). The mean of changes in the level of BMI, triglyceride, cholesterol, ALT, LDL and FBS were not statistically significant (
P
≥ 0.5). The mean of changes in AST and HDL between groups was significant (
P
< 0.05). The grade of steatosis before and after treatment between studied groups was not statistically significant (
P
≥ 0.5). Side-effects were not statistically significant among the two groups.
Conclusion
: Findings show that there the effect of cumin in in the treatment of NASH was not significantly different in compare to placebo.
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Original Article:
The effect of add-on memantine on global function and quality of life in schizophrenia: A randomized, double-blind, controlled, clinical trial
Victoria Omranifard, Fatemeh Rajabi, Maryam Mohammadian-Sichani, Mohammad Maracy
Adv Biomed Res
2015, 4:211 (28 September 2015)
DOI
:10.4103/2277-9175.166148
PMID
:26605240
Background:
Schizophrenia severely influences function and quality of life. The benefit of newer antipsychotics in improving the quality of life in schizophrenia still remains controversial. The aim of the present study is to evaluate the effect of memantine on global function and quality of life in patients with schizophrenia.
Materials and Methods:
This was a randomized controlled trial on inpatient cases of schizophrenia in Noor University Hospital, Isfahan, Iran. A number of 64 patients were selected through sequential sampling; patients were randomly allocated in intervention and placebo groups. The intervention group was treated with memantine plus previously administered, stabled-dose, atypical antipsychotic, while the control group received placebo plus previously administered, stabled-dose, atypical antipsychotic. Memantine administration was initiated at 5 mg daily; the dosage was increased at weekly intervals by 5 mg and finally up-titrated to 20 mg daily within 4 weeks. All patients were assessed by means of Global Assessment of Functioning (GAF) and quality of life scale (QLS) initially and every four weeks to the end of the 12
th
week.
Results:
Analysis of baseline GAF and QLS scores showed no significant differences between the two groups (
P
= 0.081 and
P
= 0.225, respectively). GAF and QLS scores increased in both groups; but it was higher in the intervention group. The difference between the two groups was statistically significant. (
P
< 0.001 and
P
< 0.001, respectively) memantine was well tolerated, with no significant side effects.
Conclusion:
Add-on memantine was significantly effective in improving the global function of patients as well as their quality of life.
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Original Article:
Absence of association between −286C>A>T polymorphism in the CRP gene and metabolic syndrome in Iranian pediatric
Parvaneh Nikpour, Modjtaba Emadi-Baygi, Sayedeh Ghazaleh Fatemi, Roya Kelishadi
Adv Biomed Res
2015, 4:210 (28 September 2015)
DOI
:10.4103/2277-9175.166147
PMID
:26605239
Background:
As a common pathophysiological condition worldwide, metabolic syndrome (MetS) is a clustering of multiple risk factors implicating in the development of many chronic disorders. Of note, obesity-induced chronic, low-grade inflammation is a major cause of insulin resistance and MetS. In the present study, we evaluated the association of rs3091244 variant of the C-reactive protein(
CRP
) gene, a well-recognized systemic inflammatory marker, with MetS in Iranian children and adolescents.
Materials and Methods:
Genotyping was performed by mismatched polymerase chain reaction-restriction fragment length polymorphism in 100 MetS and 100 normal individuals aged 9–19 years recruited in the central part of Iran in 2011. A
t
-test or one-way ANOVA with
post
-
hoc
multiple comparisons were used to analyze the differences between groups. Statistical significance was defined as
P
≤ 0.05. Logistic regression used to evaluate the association between alleles of the
CRP
rs3091244 and increased MetS risk.
Results:
There were no differences in the genotype frequencies or allele distribution for −286C>A>T
CRP
polymorphism between MetS and control groups. Logistic regression showed that only the T allele of the
CRP
rs3091244 and not any of the genotypes confers a borderline significant (
P
= 0.059) increased MetS risk compared to A allele with the odds ratio of 1.70 (0.98–2.96).
Conclusions:
This study suggests that in Iranian children and adolescents, −286C>A>T
CRP
polymorphism is not associated with the increased risk for MetS.
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Original Article:
Changes of neural markers expression during late neurogenic differentiation of human adipose-derived stem cells
Shahnaz Razavi, Zahra Khosravizadeh, Hamid Bahramian, Mohammad Kazemi
Adv Biomed Res
2015, 4:209 (28 September 2015)
DOI
:10.4103/2277-9175.166146
PMID
:26605238
Background:
Different studies have been done to obtain sufficient number of neural cells for treatment of neurodegenerative diseases, spinal cord, and traumatic brain injury because neural stem cells are limited in central nerves system. Recently, several studies have shown that adipose-derived stem cells (ADSCs) are the appropriate source of multipotent stem cells. Furthermore, these cells are found in large quantities. The aim of this study was an assessment of proliferation and potential of neurogenic differentiation of ADSCs with passing time.
Materials and Methods:
Neurosphere formation was used for neural induction in isolated human ADSCs (hADSCs). The rate of proliferation was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay and potential of neural differentiation of induced hADSCs was evaluated by immunocytochemical and real-time reverse transcription polymerase chain reaction analysis after 10 and 14 days post-induction.
Results
: The rate of proliferation of induced hADSCs increased after 14 days while the expression of nestin, glial fibrillary acidic protein, and microtubule-associated protein 2 was decreased with passing time during neurogenic differentiation.
Conclusion:
These findings showed that the proliferation of induced cells increased with passing time, but in early neurogenic differentiation of hADSCs, neural expression was higher than late of differentiation. Thus, using of induced cells in early differentiation may be suggested for
in vivo
application.
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Original Article:
Evaluation of the outcomes of corneal collagen cross-linking in progressive keratoconic eyes
Kobra Nasrollahi, Mohammad Ghoreishi, Shahriar Hanjani, Hamidreza Ziaie, Mohadeseh Mohammadinia, Majid Kabiri, Maryam Bahadoran
Adv Biomed Res
2015, 4:208 (28 September 2015)
DOI
:10.4103/2277-9175.166145
PMID
:26605237
Background:
Corneal collagen cross-linking (CXL) is gaining popularity as a treatment in arresting the progression of keratoconus. It is a relatively new therapy using ultraviolet-A (UVA) with a photosensitizer to increase corneal stiffness. The purpose of this study was to evaluate visual, keratometric and topographic outcomes after corneal CXL in progressive keratoconic eyes.
Materials and Methods:
In this prospective nonrandomized clinical study, 140 eyes of 110 patients with progressive keratoconus were treated by combined riboflavin/UVA CXL. Mean sphere, mean cylinder uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refractive spherical equivalent, corneal topography, pachymetry, and endothelial cell morphology were examined preoperatively and 12–24 months postoperatively.
Results:
The preoperative mean sphere was −3.33 ± 3.13 diopter (D) and decreased to −3.09 ± 3.09 D (
P
= 0.007). The preoperative mean cylinder was −4.05 ± 2.29 D and changed to −3.79 ± 2.23 D (
P
= 0.011). UDVA changed from 0.95 ± 0.64 logarithm of the minimum angle of resolution (logMAR) to 0.85 ± 0.59 logMAR (
P
= 0.003). Thirty-five eyes (25%) gained one or more lines of preoperative UDVA, 87 eyes (62.1%) did not change and 18 eyes (12.8%) lost one or more lines of the preoperative UDVA. CDVA in 80% of the patients remained stable (no lines lost). Statistical analysis of keratometry, pachymetry, and endothelial cell count did not show the significant difference after surgery.
Conclusion:
Our study showed improvement in visual and refractive results of the corneal CXL and confirmed that CXL is the safe and effective procedure.
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Original Article:
Prophylactic use of intravenous ondansetron versus ketamine - midazolam combination for prevention of shivering during spinal anesthesia: A randomized double-blind placebo-controlled trial
Mohammadreza Safavi, Azim Honarmand, Sara Mohammadsadeqie
Adv Biomed Res
2015, 4:207 (28 September 2015)
DOI
:10.4103/2277-9175.166143
PMID
:26605236
Background:
The aim of this study was to compare the efficacy intravenous (IV) ondansetron with ketamine plus midazolam for the prevention of shivering during spinal anesthesia (SA).
Materials and Methods:
Ninety patients, aged 18–65 years, undergoing lower extremity orthopedic surgery were included in the present study. SA was performed in all patients with hyperbaric bupivacaine 15 mg. The patients were randomly allocated to receive normal saline (Group C), ondansetron 8 mg IV (Group O) or ketamine 0.25 mg/kg IV plus midazolam 37.5 µg/kg IV (Group KM) immediately after SA. During surgery, shivering scores were recorded at 5 min intervals. The operating room temperature was maintained at 24°C.
Results
: The incidences of shivering were 18 (60%) in Group C, 6 (20%) in Group KM and 8 (26.6%) in Group O. The difference between Groups O and Group KM with Group C was statistically significant (
P
< 0.05). No significant difference was noted between Groups KM with Group O in this regard (
P
> 0.05). Peripheral and core temperature changes throughout surgery were not significantly different among three groups (
P
> 0.05). Incidence (%) of hallucination was not significantly different between the three groups (0, 3.3, 0 in Group O, Group KM, Group C respectively,
P
> 0.05).
Conclusion:
Prophylactic use of ondansetron 8 mg IV was comparable to ketamine 0.25 mg/kg IV plus midazolam 37.5 µg/kg IV in preventing shivering during SA.
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Original Article:
Sleep apnea syndrome and restless legs syndrome in kidney transplant recipients
Afsoon Emami Naini, Babak Amra, Leila Mahmoodnia, Shahram Taheri
Adv Biomed Res
2015, 4:206 (28 September 2015)
DOI
:10.4103/2277-9175.166142
PMID
:26605235
Background:
This study was aimed to evaluate the prevalence of obstructive sleep apnea (OSA) and restless legs syndrome (RLS) in patients with end-stage renal disease (ESRD) after kidney transplantation.
Materials and Methods:
Two hundred kidney transplant recipients were enrolled in this cross-sectional study. Data on age, gender, etiology of ESRD, history of previous kidney transplantation, serum creatinine, and the presence or absence of OSA and RLS were collected. Symptoms of RLS were identified using the RLS questionnaire which was completed by the patients. The Berlin questionnaire and polysomnography were used for diagnosing OSA.
Results:
The mean age of the studied patients was 45.86 ± 10.24 years. The prevalence of OSA was 26% (52 of 200 studied patients) and of RLS was 51.5% (103 of 200 studied patients). Majority of the patients with high-risk OSA were male and significantly older than the patients with low-risk OSA (
P
< 0.05). The prevalence of RLS was higher in patients with high-risk OSA and a higher level of creatinine compared to that in those with a low risk of OSA (
P
< 0.0001). Level of creatinine in patients with positive RLS was significantly higher than in those with negative RLS (
P
< 0.0001). OSA was observed in almost 42% of patients with positive RLS, compared to 9% of patients with negative RLS (
P
< 0.0001).
Conclusion:
In summary, our results indicate that the prevalence of OSA and RLS in kidney transplant recipients was higher than in the general population. Also, there was a significant association between OSA and RLS in these patients.
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Original Article:
Potential risk factors associated with stress urinary incontinence among Iranian women
Babak Vahdatpour, Mahtab Zargham, Maryam Chatraei, Faranak Bahrami, Farshid Alizadeh
Adv Biomed Res
2015, 4:205 (28 September 2015)
DOI
:10.4103/2277-9175.166141
PMID
:26601093
Background:
Stress urinary incontinence (SUI) is considered as one of the major hygienic problems among women. The main aim of the study is to assess the potential risk factors associated with SUI among Iranian women.
Materials and Methods:
This study was conducted on 90 married women with history of SUI diagnosed by an urologist and were selected randomly. Their pelvic muscles contraction (PMC) and the history of the subjects were assessed for some of risk factors such as age, height, weight, body mass index (BMI), pregnancy history, miscarriage, type of delivery (normal vaginal delivery or cesarean section), number of offspring born healthy in addition to other risk factors such as chronic cough, constipation and hypothyroidism by use of POP Questionnaire. Data were analyzed using Pearson correlation coefficient and SPSS version 18 Software.
Results:
There was a significant relation between SUI and height (
P
< 0.05,
r
= 0.45), vaginal delivery (NVD) (
P
< 0.05,
r
= 0.2), number of genitourinary surgery (
P
< 0.05,
r
= 0.42), hypothyroidism and constipation (
P
< 0.05). An inverse relatively strong significant relation was found between SUI and cesarean section (
P
< 0.05,
r
= –0.50) No significant relation was found between SUI and weight, BMI, age, chronic cough and miscarriage, and other study parameters. An inverse significant relation between PMC and weight (
P
< 0.05,
r
= –0.52), BMI (
P
< 0.05,
r
= –0.42) and number of genitourinary surgery (
P
< 0.05,
r
= –0.18).
Conclusion:
Cesarean section had a preventive effect on SUI versus normal vaginal delivery. The rate of SUI was higher in taller women or those suffering from hypothyroidism or constipation or who had genitourinary surgery. The women with high BMI had lower pelvic floor muscles strength.
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Original Article:
Effect of self-care education on lifestyle modification, medication adherence and blood pressure in hypertensive adults: Randomized controlled clinical trial
Jafar Golshahi, Hamid Ahmadzadeh, Masoumeh Sadeghi, Noushin Mohammadifard, Ali Pourmoghaddas
Adv Biomed Res
2015, 4:204 (28 September 2015)
DOI
:10.4103/2277-9175.166140
PMID
:26601092
Background:
Self-care management has recently been suggested as an effective approach for secondary prevention of hypertension. This study was conducted to examine whether self-care behaviors could modulate blood pressure levels and also comparing the different training methods of self-care on patients' adherence and controlling hypertension.
Materials and Methods:
This study was a prospective randomized controlled clinical trial, conducted on 180 hypertensive patients referring to four centers in Isfahan, Iran, between July and December 2013. Block randomization method were applied to divide eligible subjects into four equal groups, including group A in which the patients and their family were educated by cardiology resident about self-care behaviors through eight sessions, group B and group C were obtained self-care education through four pamphlets or eight short message services (SMS), respectively and group D were obtained only usual care of hypertension without any training about self-care management.
Results:
Increasing vegetable intake and frequency of subject who took antihypertensive medication regularly and the reduction in the frequency of subjects who consumed high salt were significantly more in group A than the others (
P
= 0.001,
P
< 0.001 and
P
< 0.001, respectively). The systolic and diastolic blood pressure had significantly more reduction in the group A than the other groups (−8.18 ± 18.3 and − 3.89 ± 4.1;
P
< 0.001, respectively).
Conclusions:
The self-care management education integration into the usual care along with using SMS and other educational materials may improve the efficient and effective adherence strategies.
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Original Article:
Effects of doxepin on brain-derived neurotrophic factor, tumor necrosis factor alpha, mitogen-activated protein kinase 14, and AKT1 genes expression in rat hippocampus
Nastaran Eidelkhani, Maryam Radahmadi, Mohammad Kazemi, Laleh Rafiee, Hojjatallah Alaei, Parham Reisi
Adv Biomed Res
2015, 4:203 (28 September 2015)
DOI
:10.4103/2277-9175.166139
PMID
:26601091
Background:
It has been suggested that doxepin in addition to enhancement of noradrenaline and serotonin levels may have neuroprotective effects. Therefore, this study investigated the effect of doxepin on gene expression of brain-derived neurotrophic factor (BDNF), tumor necrosis factor alpha (TNF-α), mitogen-activated protein kinase 14 (MAPK14), and serine-threonine protein kinase AKT1 in rat hippocampus.
Materials and Methods:
Male rats were divided randomly into three groups: Control, doxepin 1 mg/kg, and doxepin 5 mg/kg. Rats received an i.p injection of doxepin for 21 days. Then the hippocampi were dissected for the measurement of the expression of BDNF, TNF-α, MAPK14, and AKT1 genes.
Results:
Our results showed no significant effects of doxepin on gene expression of BDNF, TNF-α, MAPK14, and AKT1 genes in the hippocampus.
Conclusions:
These results did not show significant effects of doxepin on the genes that affect the neuronal survival in intact animals. However, more studies need to be done, especially in models associated with neuronal damage.
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Original Article:
The effects of L-arginine on spatial memory and synaptic plasticity impairments induced by lipopolysaccharide
Akbar Anaeigoudari, Mohammad Naser Shafei, Mohammad Soukhtanloo, Hamid Reza Sadeghnia, Parham Reisi, Reza Nosratabadi, Sepehr Behradnia, Mahmoud Hosseini
Adv Biomed Res
2015, 4:202 (28 September 2015)
DOI
:10.4103/2277-9175.166138
PMID
:26601090
Background:
An important role of nitric oxide (NO) in neuroinflammation has been suggested. It is also suggested that NO has a critical role in learning and memory. Neuro-inflammation induced by lipopolysaccharide (LPS) has been reported that deteriorates learning and memory. The effect of L-arginine (LA) as a precursor of NO on LPS-induced spatial learning and memory and neuronal plasticity impairment was evaluated.
Materials and Methods:
The animals were grouped into: (1) Control, (2) LPS, (3) LA-LPS, and (4) LA. The rats received intraperitoneally LPS (1 mg/kg) 2 h before experiments and LA (200 mg/kg) 30 min before LPS. The animals were examined in Morris water maze (MWM). Long-term potentiation (LTP) from CA
1
area of the hippocampus was also assessed by 100 Hz stimulation in the ipsilateral Schaffer collateral pathway.
Results:
In MWM, time latency and traveled path were higher in LPS group than the control group (
P
< 0.001) whereas in LA-LPS group they were shorter than LPS group (
P
< 0.001). The amplitude and slope of field excitatory postsynaptic potential (fEPSP) decreased in LPS group compared to control group (
P
< 0.05 and
P
< 0.01) whereas, there was not any significant difference in these parameters between LPS and LA-LPS groups.
Conclusion:
Administration of LPS impaired spatial memory and synaptic plasticity. Although LA ameliorated deleterious effects of LPS on learning of spatial tasks, it could not restore LPS-induced LTP impairment.
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Original Article:
In silico
prediction of B- and T- cell epitope on Lassa virus proteins for peptide based subunit vaccine design
Sitansu Kumar Verma, Soni Yadav, Ajay Kumar
Adv Biomed Res
2015, 4:201 (28 September 2015)
DOI
:10.4103/2277-9175.166137
PMID
:26601089
Background:
Lassa fever is a severe, often-fatal and one of the most virulent disease in primates. However, the mechanism of escape of virus from the T-cell mediated immune response of the host cell is not explained in any studies yet. In our studies we had aimed to predict B- and T- cell epitope of Lassa virus protein, for impaling the futuristic approach of developing preventive measures against this disease, further we can also study its presumed viral- host mechanism.
Materials and Methods:
Peptide based subunit vaccine was developed from all four protein against Lassa virus. We adopted sequence, 3D structure and fold level
in silico
analysis to predict B-cell and T-cell epitopes. The 3-D structure was determined for all protein by homology modeling and the modeled structure validated.
Results:
One T-cell epitope from Glycoprotein (WDCIMTSYQ) and one from Nucleoprotein (WPYIASRTS) binds to maximum no of MHC class I and MHC class II alleles. They also specially bind to HLA alleles namely, A*0201, A*2705, DRB*0101 and DRB*0401.
Conclusions:
Taken together, the results indicate the Glycoprotein and nucleoprotein are most suitable vaccine candidates against Lassa virus.
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Original Article:
An investigation of the rate of cyclooxygenase-2 expression on the surface of adenomatous and colorectal adenocarcinoma polyps
Ramin Baghaei, Mozhdeh Beiraghdar, Ahmad Sobhani, Rahmatolah Rafei, Leila Kolahi, Lotfolah Foladi
Adv Biomed Res
2015, 4:200 (28 September 2015)
DOI
:10.4103/2277-9175.166136
PMID
:26601088
Background:
Colorectal cancer (CRC) (adenomatous, adenocarcinoma) is one of the major causes of mortality and morbidity in human societies. Considering the importance of cyclooxygenase-2 (COX-2) expression in the incidence of CRC, in this study, the rate of COX-2 gene expression on polyps and CRCs were addressed.
Materials and Methods:
This is a cross-sectional descriptive analytic study carried out on the blocks of sampled tissue of adenomatous and colorectal adenocarcinoma polyps on 68 patients referred to Digestive Clinic in Isfahan Shariati Hospital in 2013. Patients were divided into two groups of polyps (
n
= 52) and cancer (
n
= 16). Given the presence of CRC or polyps by colonoscopy, samples were sent to the laboratory to measure the rate of COX-2 gene expression using immunohistochemistry.
Results:
In polyp group, 41 individuals (78.8%) had two or <2 polyps, 24 cases (46.2%) had a tubular polyp, and about a third of all patients had a big polyp. The most frequency of the polyp site was related to sigmoid with 19 cases (36.54%), in cancer group, it was related to the rectum with 9 cases (56.25%) that there was no significant difference between two groups (
P
< 0.05). The overall prevalence of COX-2 expression was positive in 51 cases (75%) and negative in 17 cases (25%). COX-2 gene expression was separately observed in 38 individuals (73.10%) in the polyp group and in 13 cases (81.25%) in the cancer group, and no significant difference was found (
P
> 0.05).
Conclusion:
There is no relationship between COX-2 gene expression and the surface of adenomatous and colorectal adenocarcinoma polyps.
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Original Article:
Ultrasound-guided percutaneous central venous catheterization in infants: Learning curve and related complications
Mohammad Omid, Mohammad Hadi Rafiei, Mehrdad Hosseinpour, Mehrdad Memarzade, Maryam Riahinejad
Adv Biomed Res
2015, 4:199 (28 September 2015)
DOI
:10.4103/2277-9175.166135
PMID
:26601087
Background:
This study was performed to evaluate the learning curve and related complications of ultrasound (US) guided central venous catheter (CVC) insertion in infants.
Materials and Methods:
This study was performed in Imam Hosein Hospital of Isfahan from September 2014 to March 2015. Participants were infants consecutively candidate for CVC insertion. Three steps were designed to complement the learning. For each step of learning, 20 patients were considered and for every patient one CVC was inserted: (1) In the first step, venous puncture and guide wire passage was performed by an experienced radiologist and the surgeon was taught how to do it, then CVC was placed by the surgeon. (2) In the second step, venous puncture and guide-wire passage was performed by the surgeon under the supervision of the same radiologist, and then CVC was placed by the surgeon. (3) In the third step, US-guided CVC insertion was performed by the surgeon completely, and the radiologist came to the operating room only if it was necessary. In each of these steps, the time spent of the US probe on the skin until the guide wire passage into the vein was recorded for every patient. All perioperative complications were recorded.
Results:
The mean point for the time spent of the US probe on the skin until the guide wire passage into the vein was 84.9 ± 13.6, 119.1 ± 15.2, and 90.3 ± 11.2 s in the step 1, 2 and 3, respectively (
P
= 0.04). There was no significant difference between the frequencies of complications among tree steps.
Conclusion:
US-guided percutaneous CVC insertion is a safe and reliable method which can be easily and rapidly learned.
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Original Article:
Comparison the results of two different vestibular system surgery in patients with persistent Meniere's disease
Saeed Soheilipour, Seyed Hamidreza Abtahi, Masoud Soltani, Hesam-al-din Khodadadi
Adv Biomed Res
2015, 4:198 (28 September 2015)
DOI
:10.4103/2277-9175.166134
PMID
:26601086
Background:
Incidence rates of Meniere's disease vary considerably from 157/100,000 in the United Kingdom to 15/100,000 in the United States. Furthermore, in Iran prevalence of Meniere's disease is high, whereas we have not a reliable statistical study on it. A wide range of treatments are used for the treatment of the condition with no consensus on the most effective intervention. The aim of the present study, which involved 37 patients treated because of severe vertigo due to persistent Meniere's disease from 1996 to 2011, was to compare the effectiveness of two surgical methods cochleosacculotomy and endolymphatic sac decompression on vertigo and tinnitus.
Materials and Methods:
In a cross-sectional study, we compared two surgical approaches in patients with Meniere's disease who did not respond to usual medical treatment. Twenty-three patients underwent cochleosacculotomy surgery and 14 patients endolymphatic sac decompression surgery. We compared all the patients for resolving of vertigo, tinnitus.
Results:
After surgery, in patients of both group vertigo was improved significantly (
P
< 0.0001), tinnitus was improved, but it was not significant (
P
> 0.05) and hearing level was worse than before (especially in patients who had undergone cochleosacculotomy) (
P
< 0.0001).
Conclusion:
Based on the data of the current study, cochleosacculotomy and endolymphatic sac decompression improved vertigo in patients with persistent Meniere's disease.
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Original Article:
Comparing right ventricular function and pulmonary artery pressure before and shortly after hemodialysis in patients with end-stage renal disease
Jamshid Najafian, Shahram Taheri, Behzad Mahaki, Safieh Molavi, Samaneh Alami, Somayeh Khalesi, Asma Salehi
Adv Biomed Res
2015, 4:197 (28 September 2015)
DOI
:10.4103/2277-9175.166133
PMID
:26601085
Background:
Early screening and diagnosis of right ventricular (RV) dysfunction and pulmonary artery hypertension is vital in patients with end-stage renal disease (ESRD) because of its relation to patients' survival. The present study is aimed to address and compare RV function parameters and pulmonary artery pressure (PAP) before and shortly after hemodialysis in patients with ESRD.
Materials and Methods:
This quasi-experimental study performed at Alzahra Hospital in Isfahan in 2014, 40 consecutive patients with ESRD that referred to hemodialysis ward were assessed by M-mode echocardiography and tissue Doppler imaging before and 30 min after completing hemodialysis to assess RV function parameters and PAP.
Results:
Following hemodialysis, mean body weight, both systolic, and diastolic blood pressures (BPs) and also mean systolic PAP significantly decreased, while tricuspid annulus plane systolic excursion (TAPSE), RV fractional area change (RVFAC) significantly increased 30 min after hemodialysis compared with before this procedure. However, systolic myocardial remained unchanged. Changes in body weight after dialysis was adversely associated with patients' age and duration of dialysis. Moreover, change in PAP was positively associated with the level of serum creatinine.
Conclusion:
Early reduction in body weight and BP, as well as improvement in RV function, and PAP is predictable shortly after starting hemodialysis in patients with ESRD. We found that RVFAC and TAPSE values were dependent on preload, but RV S' velocity was load independent. Change in body weight is predicted more in older patients and those who undergoing prolonged hemodialysis. Change in PAP is strongly affected by the severity of renal failure, but RV function may not be influenced by age or duration of dialysis.
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Original Article:
The effects of tamoxifen on spatial and nonspatial learning and memory impairments induced by scopolamine and the brain tissues oxidative damage in ovariectomized rats
Sareh Karimi, Seyed Hassan Hejazian, Vajiheh Alikhani, Mahmoud Hosseini
Adv Biomed Res
2015, 4:196 (28 September 2015)
DOI
:10.4103/2277-9175.166132
PMID
:26601084
Background:
Modulatory effects of tamoxifen (TAM) on the central nervous system have been reported. The effects of TAM on spatial and nonspatial learning and memory impairments induced by scopolamine and the brain tissues oxidative damage was investigated.
Materials and Methods:
The ovariectomized (OVX) rats were divided and treated: (1) Control (saline), (2) scopolamine (Sco; 2 mg/kg, 30 min before behavioral tests), (3–5) Sco-TAM 1, Sco-TAM 3 and Sco-TAM 10. TAM (1, 3 or 10 mg/kg; i.p.) was daily administered for 6 weeks.
Results:
In Morris water maze (MWM), both the latency and traveled distance in the Sco-group were higher than control (
P
< 0.001) while, in the Sco-TAM 10 group it was lower than Sco-group (
P
< 0.05). In passive avoidance test, the latency to enter the dark compartment was higher than control (
P
= 0.05 –
P
< 0.01). Pretreatment by all three doses of TAM prolonged the latency to enter the dark compartment compared to Sco-group (
P
< 0.05 –
P
< 0.001). The brain tissues malondialdehyde (MDA) concentration was increased while, superoxide dismutase activity (SOD) decreased in the Sco-group compared to control (
P
< 0.05 –
P
< 0.01). Pretreatment by TAM lowered the concentration of MDA while, increased SOD compared to Sco-group (
P
< 0.05 –
P
< 0.001).
Conclusions:
It is suggested that TAM prevents spatial and nonspatial learning and memory impairments induced by scopolamine in OVX rats. The possible mechanism(s) might at least in part be due to protection against the brain tissues oxidative damage.
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Original Article:
Interleukin-4 receptor alpha T1432C and A1652G polymorphisms are associated with risk of visceral leishmaniasis
Alireza Ahmadi, Mehrdad Hajilooi, Ghasem Solgi, Mohammad Abasi, Ahad Bazmani, Mohammad Matini, Khosro Sardarian
Adv Biomed Res
2015, 4:195 (28 September 2015)
DOI
:10.4103/2277-9175.166131
PMID
:26605234
Background:
Immune responses play significant roles in protection against leishmaniasis. Polymorphisms within the interleukin 4 receptor alpha chain (IL-4Rα) gene affect the production of cytokines, which is important for the clearance of many pathogens. The aim of the current study was to identify the relationship between visceral leishmaniasis (VL) infection and polymorphisms at positions T1432C and A1652G of IL-4Rα in an Iranian population.
Materials and Methods:
This cross-sectional study was performed during 2004–2012 and included three groups of participants: VL patients (Group 1,
n
= 124), seropositive healthy controls (Group 2,
n
= 101), and seronegative healthy controls (Group 3,
n
= 55). The IL-4Rα T1432C and A1652G polymorphisms were evaluated using a polymerase chain reaction-restriction fragment length polymorphism technique, and anti-
Leishmania
antibody titers were determined by using immunofluorescence technique. Alleles and genotypes were compared between groups of the study as well as Groups 1 and 2 based on the titer of antibodies. The validity of the data was analyzed using Hardy–Weinberg equilibrium and one-way analysis of variance, as well as χ
2
tests.
Results:
The polymorphisms at IL-4Rα positions T1432C and A1652G were significantly associated with active VL infection. These results demonstrated that the IL-4Rα T1432C and A1652G polymorphisms were not associated with anti-
Leishmania
antibody production.
Conclusion:
Our results indicate that these IL-4Rα polymorphisms may be risk factors for the development of VL.
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Original Article:
Does working in hospital increases seroprevalence and carrier state against Bordetella pertussis?
Alireza Emami Naeini, Nasim Zaman, Farzin Khorvash, Sahar Emami Naeini, Hesam-al-din Khodadadi, Mojgan Mokhtari, Ali Mehrabi Koushki
Adv Biomed Res
2015, 4:194 (28 September 2015)
DOI
:10.4103/2277-9175.166155
PMID
:26605233
Background:
Health care environments have been the setting for a number of pertussis outbreaks. Immunity after vaccination wanes overtime leading to a growing population of susceptible adolescents and adults. A number of pertussis outbreaks have occurred in hospitals resulting in transmission to health care workers (HCWs), and other patients. The aim of this study was to assess immunity status of a group of basic medical students and interns who worked in hospitals for about 4 years.
Materials and Methods:
In a cross-sectional study, we measured the serum antibody titer of cases by enzyme-linked immunosorbent assay test. All 70 subjects have received pertussis vaccine in the routine childhood vaccination schedule. All cases were healthy and had no symptoms of any respiratory diseases. We also obtained a pharyngeal culture on Bordet-Gengou Agar for isolating
Bordetella pertussis
.
Results:
The results of
B. pertussis
pharyngeal culture was positive for 5 (7.1%) cases and negative for 65 (92.9%). The IgM, IgA, and IgG serum antibody was positive in 1.4%, 7.1%, and 11.4% of cases, respectively. The mean age of cases had no significant effect on serum antibody titers (
P
= 0.23).
Conclusions:
This study showed that majority of cases do not have protective serum antibody against
B. pertussis
. Working in hospitals does not affect seroprevalence and carrier state of
B. pertussis
. Immunization schedules that include no booster doses are at increased risk of pertussis. Due to the importance of the transmission in health care settings, vaccination of HCWs is a priority.
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Original Article:
Maternal and neonatal morbidity and mortality rate in caesarean section and vaginal delivery
Ataollah Ghahiri, Mehrnoush Khosravi
Adv Biomed Res
2015, 4:193 (28 September 2015)
DOI
:10.4103/2277-9175.166154
PMID
:26605232
Background:
The cesarean section is one of the most common procedures to prevent health-threatening risks to the mother and infant. Increasing rate of cesarean section attracted the attention of professionals and the overall objective of this study was to determine the frequency of maternal and neonatal morbidity and mortality rates in the two methods of delivery.
Materials and Methods:
In a comparative cohort study, 300 cases undergoing caesarean section and 300 cases with vaginal delivery were selected in two main hospitals of Isfahan, Iran during 2013 and 2014. Demographic characteristics and factors related to mortality and morbidity of mothers and infants were studied. Mothers were also recruited 6 weeks after delivery to ask for complications. Mothers and infants mortality and morbidity were studied and analyzed by SPSS 22 software.
Results:
Follow-up of deliveries up to 1-month after delivery suggested 2 cases of infant death (7%) in vaginal delivery group, while no case of infant death was reported in cesarean delivery group (
P
= 0.5). Incidence of fever was observed in first 10 days after delivery in 7 cases in the vaginal delivery group and 11 cases in the cesarean delivery group (2.3% vs. 3.7%,
P
= 0.4).
Conclusion:
Despite all the benefits of vaginal delivery compared with cesarean section, in many cases, especially in emergency cesarean section delivery can substantially reduce the maternal and neonatal mortality and morbidity. It is recommended to assess the complications of each method in all pregnant women about to give birth, and then decide on the method of delivery.
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Original Article:
Effect of tubeless percutaneous nephrolithotomy on early renal function: Does it deteriorate?
Seyed Reza Hosseini, Mohammad Ghasem Mohseni, Hamzeh Roshan, Farshid Alizadeh
Adv Biomed Res
2015, 4:190 (28 September 2015)
DOI
:10.4103/2277-9175.166144
PMID
:26605229
Background:
The impact of standard percutaneous nephrolithotomy (PCNL) on short or long-term renal function has been evaluated in many studies. We evaluated the effect of tubeless PCNL on early renal function.
Materials and Methods:
A total of 117 patients referring to our university center for PCNL were enrolled in the study if they were matched with the inclusion criteria. Serum creatinine and hemoglobin (Hb) levels were measured before PCNL and 6, 24, 48, and 72 h after the operation. Glomerular filtration rate (GFR) was calculated using Cockroft-Gault formula.
Results:
There were 79 (67.5%) men and 38 women (32.5%) with the mean age of 49.94 years ranging from 18 to 80 years in the study group. The mean creatinine level elevated in the first 48 h after PCNL but it started to reduce on the 3
rd
day (mean preoperative creatinine level: 1.32 ± 0.18 mg/dL, mean creatinine level after 48 h: 1.59 ± 0.24 mg/dL, creatinine level after 72 h: 1.42 ± 0.21245 mg/dL) (
P
< 0.0001). GFR values had the same rise and fall pattern as serum creatinine level (mean preoperative GFR: 74.89 mL/min, mean GFR after 48 h: 64.04 mL/min, GFR after 72 h: 69.54 mL/min,
P
< 0.0001). PCNL also affected blood Hb level. The mean preoperative Hb level was 15.06 ± 0.87 g/dL and it significantly decreased to 13.09 ± 1.06 g/dL after the operation (
P
< 0.0005).
Conclusions:
Tubeless PCNL like standard PCNL decreases GFR in the very early postoperative days. It is recommended that factors that might have a negative impact on renal function during first few days after PCNL be avoided.
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[
5
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[
6
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2021
December
[
9
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[
8
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October
[
4
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September
[
4
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[
2
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[
4
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June
[
3
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May
[
1
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March
[
2
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February
[
3
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January
[
6
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December
[
6
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November
[
5
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October
[
12
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September
[
8
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August
[
5
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July
[
6
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June
[
1
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May
[
5
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April
[
5
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March
[
2
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February
[
3
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[
5
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2019
December
[
2
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4
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4
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4
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5
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3
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7
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May
[
3
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3
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6
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1
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8
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[
7
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2
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9
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[
7
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9
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May
[
12
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[
15
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13
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[
14
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19
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December
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8
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[
16
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[
9
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8
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13
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[
32
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