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Original Article:
Cytotoxic Evaluation of Some Fused Pyridazino- and Pyrrolo-quinazolinones Derivatives on Melanoma and Prostate Cell Lines
Golnaz Vaseghi, Elham Jafari, Farshid Hassanzadeh, Shaghayegh Haghjooy-Javanmard, Nasim Dana, Mahmoud Rafieian-Kopaei
Adv Biomed Res
2017, 6:76 (27 June 2017)
DOI
:10.4103/2277-9175.209049
PMID
:28706884
Background:
Quinazolinon as an important class of heterocycles is attractive in medicinal research areas due to their wide range of biological effects. Cytotoxic activities of the quinazolinone derivatives in various cell lines including: HeLa, L1210 (mouse lymphocytic leukemia) and HT29 (human colon adenocarcinoma) were reported.
Materials and Methods:
In this study, a number of newly made tricycles quinazolinone derivatives such as fused pyridazino-quinazolinones and fused pyrrolo-quinazolinones were evaluated on two cancerous cell lines, melanoma (B16F10) and prostate (PC3) using the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide colorimetric assay.
Results:
The results of cytotoxicity evaluations indicated that almost all of the compounds at the concentrations of 10 and 100 μM showed significant differences in viability in comparison with negative control at 48 h exposure (
P
< 0.05). However, during 24 h exposure some of the compounds showed cytotoxicity activity.
Conclusion:
Results showed that both cell lines were sensitive to synthesized compounds and longer duration of exposure (48 h) had better results compared to that of 24 h screening.
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Original Article:
Effects of Mannitol 20% on Outcomes in Nontraumatic Intracerebral Hemorrhage
Bahram Aminmansour, Homayoun Tabesh, Majid Rezvani, Hossain Poorjafari
Adv Biomed Res
2017, 6:75 (27 June 2017)
DOI
:10.4103/2277-9175.192628
PMID
:28706883
Background:
A large number of stroke patients are not the perfect candidate for craniotomy and invasive procedures, so providing an alternative and noninvasive method, which is applicable in terms of costs and facilities, is necessary. Thus, the present study aimed to determine the effects of mannitol 20% on outcome of the patients with nontraumatic intracerebral hemorrhage (ICH) in patients admitted to Isfahan's Al-Zahra Hospital during 2012 and 2013.
Materials and Methods:
This is a clinical trial study which is conducted during 2012–2013 in Isfahan's Al-Zahra Hospital. In this study, 41 patients suffering from ICH received mannitol 20% for 3 days, and volume of hemorrhage and Glasgow Coma Scale (GCS) of patients were controlled every 12 h. The collected data were analyzed via SPSS software.
Results:
The mean ICH volume was 22.1 ± 6.3 ml in pre intervention and 38.4 ± 19.3 ml in post intervention, and according to the
t
-paired test, before and after treatment the difference was significant (
P
< 0.001). Hemorrhage volume was stable in nine patients (22%), it increased in 25 patients (61%), and decreased in seven patients (17.1%). The mean index of GCS before and after treatment was 11.85 ± 1.6 and 9.37 ± 2.65, respectively. Moreover according to
t
-paired test, the difference was significant before and after treatment (
P
< 0.001). During using mannitol, the GCS index was stable in eight patients (19.5%), it increased in eight patients (19.5%) and decreased in 25 patients (61%).
Conclusions:
Mannitol injection was not effective in reducing hemorrhage size, and its use is not recommended, also, further studies in this field have been proposed.
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Original Article:
Distribution of the Strains of Multidrug-resistant, Extensively Drug-resistant, and Pandrug-resistant
Pseudomonas aeruginosa
Isolates from Burn Patients
Hajieh Ghasemian Safaei, Sharareh Moghim, Bahram Nasr Isfahani, Hossein Fazeli, Farkhondeh Poursina, Sima Yadegari, Pourya Nasirmoghadas, Seyed Abolfazl Hosseininassab Nodoushan
Adv Biomed Res
2017, 6:74 (27 June 2017)
DOI
:10.4103/abr.abr_239_16
PMID
:28706882
Background:
Pseudomonas aeruginosa
is an opportunistic and Gram-negative pathogen that is used as the most important factor in burn wound infections, and due to the rapid acquisition of multidrug resistance (MDR), it causes high mortality rates in these sectors. Thus, diagnosis and assessment of antibiotic resistance patterns are very important in these patients. The aim of this study was to evaluate antibiotic resistance pattern and determining
P. aeruginosa
MDR.
Materials and Methods:
In this study, phenotypic, biochemical, and polymerase chain reaction tests were used to identify
P. aeruginosa
from 120 wound burn samples that 96 samples were detected to
P. aeruginosa
species. In the next step, according to the Clinical and Laboratory Standard Institute standard guidelines, antibiogram test was performed by disk diffusion method for amikacin, ciprofloxacin, norfloxacin, gentamicin, cefepime, aztreonam, meropenem, colistin, ceftazidime, and piperacillin-tazobactam antibiotics. Antibiotic data were analyzed by WHONET software; finally, the rate of antibiotic resistance and MDR strains was determined.
Results:
The highest antibiotic resistance belonged to amikacin (94.8%) and norfloxacin (90.6%); in contrast, colistin (8.3%) had the lowest and the MDR strains were MDR (95.8%) and extensively drug resistance (XDR) (87.5%).
Conclusion:
In this study, there was MDR with an alarming rate including MDR (95.8%), XDR (87.5%), and pan-drug resistance (0%). As a result, given antibiotics to patients should be controlled by the antibiogram results to avoid increasing MDR strains.
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Original Article:
Assessment Effects of Resveratrol on Human Telomerase Reverse Transcriptase Messenger Ribonucleic Acid Transcript in Human Glioblastoma
Azin Mirzazadeh, Majid Kheirollahi, Ehsan Farashahi, Fatemeh Sadeghian-Nodoushan, Mohammad Hasan Sheikhha, Behrouz Aflatoonian
Adv Biomed Res
2017, 6:73 (27 June 2017)
DOI
:10.4103/2277-9175.209047
PMID
:28706881
Background:
Glioblastoma (GBM) is the most common and aggressive brain tumor, which has a poor prognosis despite the advent of different therapeutic strategies. There are numerous molecular biomarkers to contribute diagnosis, prognosis, and prediction of response to the current therapy in GBM. One of the most important markers that are potentially valuable is immortalization-specific or immortalization-associated marker named “hTERT messenger ribonucleic acid (mRNA)” the key subunit of telomerase enzyme, which is expressed in more than 85% of cancer cells, in spite of the majority of normal somatic cells. In this study, we investigated the effects of resveratrol (RSV) on this mRNA marker level, leading to cancer progression.
Materials and Methods:
U-87MG cell line was obtained from Pasteur Institute of Iran and treated with various concentrations of 0–160 μg/mL of RSV and at different time points (24, 48, and 72 h). To evaluate viability of U-87MG cells, standard 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was performed. Real-time polymerase chain reaction (RT-PCR) was used for comparative and quantitative assessment of human telomerase reverse transcriptase (hTERT) mRNA copy number versus control–untreated group.
Results:
The results of our investigation suggested that RSV effectively inhibited cell growth and caused cell death in dose-dependent (
P
< 0.05) and not in time-dependent manner (
P
> 0.05),
in vitro
. Interestingly, quantitative RT-PCR analysis demonstrated that at half inhibition concentration, RSV dramatically decreased mRNA expression of hTERT, the catalytic subunit of telomerase enzyme, which leads to prevention of cell division and tumor progression.
Conclusion:
With regard to downregulation of this immortalization-associated marker, RSV may potentially be used as a therapeutic agent against GBM.
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Original Article:
Frequency of Cutaneous Fungal Infections and Azole Resistance of the Isolates in Patients with Diabetes Mellitus
Omid Raiesi, Mansour Siavash, Faezeh Mohammadi, Javaher Chabavizadeh, Behzad Mahaki, Mehrnoush Maherolnaghsh, Parvin Dehghan
Adv Biomed Res
2017, 6:71 (6 June 2017)
DOI
:10.4103/2277-9175.191003
PMID
:28626746
Background:
Diabetic patients are more susceptible to cutaneous fungal infections. The higher blood sugar levels cause increasing the cutaneous fungal infections in these patients. The main objective of this study was to find the frequency of fungal infections among cutaneous lesions of diabetic patients and to investigate azole antifungal agent susceptibility of the isolates.
Materials and Methods:
In this study, type 1diabetes (
n
= 78) and type 2 diabetes (
n
= 44) comprised 47 cases (38.5%) with diabetic foot ulcers and 75 cases (61.5%) with skin and nail lesions were studied. Fungal infection was confirmed by direct examination and culture methods. Antifungal susceptibility testing by broth microdilution method was performed according to the CLSI M27-A and M38-A references.
Results:
Out of 122 diabetic patients, thirty (24.5%) were affected with fungal infections. Frequency of fungal infection was 19.1% in patients with diabetic foot ulcer and 28% of patients with skin and nail lesions.
Candida albicans
and
Aspergillus flavus
were the most common species isolated from thirty patients with fungal infection, respectively. Susceptibility testing carried out on 18 representative isolates (13
C. albicans
, five
C. glabrata
) revealed that 12 isolates (10
C. albicans
and two
C. glabrata
isolates) (66.6%) were resistant (minimum inhibitory concentration [MIC] ≥64 mg/ml) to fluconazole (FCZ). Likewise, eight isolates (80%) of
Aspergillus
spp. were resistant (MIC ≥4 mg/ml), to itraconazole.
Conclusion:
Our finding expands current knowledge about the frequency of fungal infections in diabetic patients. We noted the high prevalence of FCZ-resistant
Candida
spp
.,
particularly in diabetic foot ulcers. More attention is important in diabetic centers about this neglected issue.
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Original Article:
Investigating the Effect of Extracorporeal Shock Wave Therapy on reducing Chronic Pain in Patients with Pes Anserine Bursitis: A Randomized, Clinical- Controlled Trial
Saeid Khosrawi, Parisa Taheri, Marziyeh Ketabi
Adv Biomed Res
2017, 6:70 (6 June 2017)
DOI
:10.4103/2277-9175.190999
PMID
:28626745
Background:
Knee pain, is one of the most common causes of patients' referring to physiatric clinics, and several factors, are involved in its creation. One of these factors is pes anserine bursitis (PAB) for which various treatment methods are used. This study aims to investigate the effect of this method on reducing chronic pain in these patients.
Materials and Methods:
This clinical trial was conducted in 2013- 2014 on patients with PAB referring to academic, physical medicine clinics. The patients with chronic PAB (pain duration more than 3 months), who were refractory to conservative treatments, were randomly divided into two 20-member experimental groups (extracorporeal shock wave therapy [ESWT] and sham ESWT). Pain scores of all patients were measured using the Visual Analog Scale (VAS) and McGill Pain Questionnaire (MPQ) (total and present pain indexes [TPIs and PPIs]) before intervention, immediately after intervention (3
rd
week), and after 8 weeks. The pain scores were then compared and statistically analyzed.
Results
: In the ESWT group, the mean patient pain score of the VAS and TPI in MPQ were significantly lower than in the sham ESWT group immediately after intervention (3
rd
week):
P
=0.02,
P
= 0.04 respectively; and 8 weeks after the end of treatment:
P
=0.01,
P
= 0.000. Moreover, the PPI in both groups had significantly decreased over time, although in ESWT group this decrement was significantly more than sham ESWT group (
P
< 0.001).
Conclusion:
The results showed that ESWT could be effective in reducing the pain and treating PAB.
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Original Article:
Central Beneficial Effects of Trimetazidine on Psychomotor Performance in Normal Healthy Volunteers
Hayder M Al-Kuraishy, Ali I Al-Gareeb
Adv Biomed Res
2017, 6:69 (6 June 2017)
DOI
:10.4103/2277-9175.190994
PMID
:28626744
Background:
Trimetazidine is a fatty oxidation inhibitor, leading to shifting of energy substrate from fatty acid oxidation toward glucose oxidation that leads to the reduction of oxygen requirement. The aims of the present study were to elucidate the effects of trimetazidine on psychomotor performance and vigilance on normal healthy volunteers.
Materials and Methods:
A total of 234 subjects (age 22–25 years) were recruited in this study. The volunteers were randomizing into two groups with 117 volunteers in each group. Group I received an inert starch capsule served as a control, and Group II received trimetazidine tablet 15 mg/day. The duration of therapy was 5 days. Test procedure was done at 9.00 a.m. on the psychomotor tester. Before the drug administration, prescore values were recorded and then after 5 days of therapy, the postscore values were recorded.
Results:
The placebo did not demonstrate a significant effect on all psychomotor performances and flicker-fusion elements (
P
> 0.05). Trimetazidine therapy produced a highly significant effect on all components of psychomotor performances and flicker-fusion parameters (
P
< 0.001) compared with pretreatment era.
Conclusion:
We conclude that trimetazidine improves psychomotor performance and vigilance in normal healthy volunteers through advancing total reaction time and critical flicker-fusion frequency.
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Original Article:
Phytochemical Screening and Cytotoxic Evaluation of
Euphorbia turcomanica
on Hela and HT-29 Tumor Cell Lines
Mehdi Aliomrani, Abbas Jafarian, Behzad Zolfaghari
Adv Biomed Res
2017, 6:68 (6 June 2017)
DOI
:10.4103/2277-9175.192734
PMID
:28626743
Background:
Cancer is a term for a large group of different diseases, all involving uncontrolled cell growth. Many of
Euphorbiaceae
plants have been traditionally used for the treatment of ulcers, tumors, warts, and other diseases. In addition, in the last decade, there are studies showing cytotoxic effects of different species of
Euphorbia
on tumor cell lines. In this study, we attempted to determine if
Euphorbia turcomanica
possess any cytotoxic activity.
Materials and Methods:
Solvents extracted the plant powder with various polarities by a maceration method, and qualitative phytochemical analyzes were carried out on them to identify the constituents. On the other hand, the possible cytotoxicity of different extracts on Hela and HT-29 tumor cells was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay and 50% reduction in cell survival was considered as a cytotoxic effect. Analyze of variance followed by Student-Newman-Keuls test was used to see the differences among the groups.
Results:
Phytochemical analysis of
E. turcomanica
showed the presence of flavonoid, alkaloid, anthraquinone and tannin in plant aerial parts. Methanol-water, acetone, dichloromethane, methanol, and heptane extracts of
E. turcomanica
significantly reduced viability of Hela cells (
P
< 0.05) with inhibitory concentration 50% (IC
50
) of 50, 90, 230, 420, and 450 μg/ml, respectively. While methanol-water, dichloromethane, methanol, ethyl acetate, and heptane extracts were cytotoxic with IC
50
of 43, 115, 125, 250, and 390 μg/ml, respectively (
P
< 0.05), on HT-29 cells.
Conclusion:
It can be concluded that
E. turcomanica
is a good candidate for further study toward cytotoxic agents.
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Original Article:
Association Study of Glutathione S-transferases Gene Polymorphisms (GSTM1 and GSTT1) with Ulcerative Colitis and Crohn's Disease in the South of Iran
Maryam Moini, Mostafa Saadat, Hooshang Saadat, Atefeh Esmailnejad, Alireza Safarpour
Adv Biomed Res
2017, 6:67 (6 June 2017)
DOI
:10.4103/2277-9175.190981
PMID
:28626742
Background:
Inflammatory bowel diseases (IBDs), including ulcerative colitis (UC) and Crohn's disease (CD), are chronic inflammatory disorders of the gastrointestinal tract. A combination of environmental factors and interactions with a genetic predisposition are suggested to play an important role in the etiology and pathogenesis of the IBD. Glutathione S-transferases (GSTs) are multifunctional enzymes involved in the cellular oxidative stress handling. Possible associations between GSTs gene polymorphisms and susceptibility to UC and CD have been reported in different population. The relationship between GSTM1 and GSTT1 deletion polymorphisms and susceptibility to UC and CD were investigated in the Iranian population.
Materials and Methods:
The study was performed in 106 IBD patients and 243 age- and sex-matched healthy Iranian controls consulting the IBD registry center of the Motahari Clinic, Shiraz University of Medical Sciences, Shiraz, Iran, between 2011 and 2013. GSTM1 and GSTT1 genotyping were performed using multiplex polymerase chain reaction and differences in the distribution of gene polymorphisms were analyzed statistically between the studied groups.
Results:
Statistically significant higher frequency of GSTM1 null genotype was observed in IBD patients (
P
= 0.01) and in the subgroup of patients with UC (
P
= 0.04) compared to healthy controls, whereas this was not true for CD patients. No significant association was found between GSTT1 gene polymorphism and UC or CD.
Conclusions:
Absence of GSTT1 functional gene does not play an important role in the pathophysiology and development of IBD, UC, and CD in Iranian population whereas GSTM1 null genotype could be considered as a possible genetic predisposing factor for more susceptibility to IBD and UC.
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Original Article:
Isolation and Identification of Two Phenolic Compounds from a Moderately Cytotoxic Fraction of
Cousinia verbascifolia
Bunge
Seyed Ebrahim Sajjadi, Mustafa Ghanadian, Mehrangiz Haghighi
Adv Biomed Res
2017, 6:66 (6 June 2017)
DOI
:10.4103/2277-9175.190980
PMID
:28626741
Background:
Little information is available about chemical components of the
Cousinia
genus. A primary cytotoxicity screening on
Cousinia verbascifolia
showed moderate cytotoxic activity against OVCAR-3 ovarian and HT-29 colon cancer cells. Therefore, the aim of this study is a phytochemical investigation to identify the compounds responsible for this bioactivity.
Materials and Methods:
Extraction was done through percolation and fractionations by reverse phase column chromatography and normal column chromatography. Using standard 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay Fr.b8 with moderate cytotoxicity was selected for identification of major components. Fr.b8 was subjected to polyamide column chromatography. More purification was done using a new modified recycle high-performance liquid chromatography (HPLC) with flow splitter.
Results:
Two known compounds: Apigenin (flavone) and caffeic acid (phenolic acid) were obtained from phenolic bioactive fraction for the first time from this plant.
Conclusions:
Apigenin and caffeic acid with known antitumor and matrix metalloproteinase inhibitory effects seem to be the bioactive components responsible for moderate cytotoxicity of phenolic fraction. Recycle HPLC following with flow splitting is a new method useful for isolation of closely eluted compounds in HPLC chromatogram.
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2022
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[
6
]
June
[
8
]
May
[
9
]
April
[
7
]
March
[
7
]
February
[
5
]
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[
6
]
2021
December
[
9
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[
8
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[
4
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[
4
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August
[
2
]
July
[
4
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June
[
3
]
May
[
1
]
March
[
2
]
February
[
3
]
January
[
6
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2020
December
[
6
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November
[
5
]
October
[
12
]
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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[
3
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[
5
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2019
December
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2
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November
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4
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October
[
4
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September
[
4
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[
5
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[
3
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June
[
7
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May
[
3
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April
[
4
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March
[
3
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February
[
6
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2018
December
[
1
]
November
[
8
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October
[
7
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September
[
2
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[
9
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[
7
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June
[
9
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[
12
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[
15
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March
[
13
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[
14
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19
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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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17
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10
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9
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16
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10
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18
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