Advanced Biomedical Research

ORIGINAL ARTICLE
Year
: 2020  |  Volume : 9  |  Issue : 1  |  Page : 79-

The effect of Sargassum glaucescens from the Persian gulf on neuropathy pain induced by paclitaxel in mice


Afsaneh Yegdaneh1, Anahita Saeedi2, Tanin Shahmiveh2, Golnaz Vaseghi3,  
1 Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
2 Department of Pharmacognosy, School of Pharmacy and Pharmaceutical Sciences, Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
3 Applied Physiology Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran

Correspondence Address:
Dr. Golnaz Vaseghi
Applied Physiology Research Center, Isfahan University of Medical Sciences, Isfahan
Iran

Abstract

Background: Marine seaweeds are a famous type of traditional food containing various kinds of secondary metabolites. These organisms have different biological activities such as antitumor, antiviral, and antioxidant. The aim of this study was to investigate the effects of total extract of Sargassum glaucescens on neuropathy pain induced by paclitaxel in mice. Materials and Methods: S. glaucescens was collected from the Persian Gulf. The seaweed was extracted by maceration with methanol-ethyl acetate (1:1) solvent. The effect of the extract on neuropathy pain induced by paclitaxel was analyzed. All results were analyzed by one-way analysis of variance. Results: Acute administration of S. glaucescens extract (100 and 200 mg/kg intraperitoneally [i.p.]) 30 min before the test on the 11th day significantly reduced the duration of paw licking (P < 0.001). Conclusions: Chronic treatment with S. glaucescens extract (100, 150, and 200 mg/kg i.p.) from the 6th day until the 10th day reduced the duration of paw licking. Therefore, S. glaucescens should be considered for further treatment of neuropathy.



How to cite this article:
Yegdaneh A, Saeedi A, Shahmiveh T, Vaseghi G. The effect of Sargassum glaucescens from the Persian gulf on neuropathy pain induced by paclitaxel in mice.Adv Biomed Res 2020;9:79-79


How to cite this URL:
Yegdaneh A, Saeedi A, Shahmiveh T, Vaseghi G. The effect of Sargassum glaucescens from the Persian gulf on neuropathy pain induced by paclitaxel in mice. Adv Biomed Res [serial online] 2020 [cited 2021 Jan 21 ];9:79-79
Available from: https://www.advbiores.net/text.asp?2020/9/1/79/304365


Full Text



 Introduction



Cancer is a leading cause of death worldwide, however, with new chemotherapy agents, it is more curable nowadays.[1] Chemotherapeutic agents may cause toxicity on peripheral nerves lead to mild Paresthesia's, loss of sensory function, neuropathy pain, severe ataxia, weakness, and pronounced disability. Hence, the quality of life may further reduced because of the engagement of nerve fibers with orthostatic hypotension, disability, and also incontinence. Although many compounds with cytotoxic activity are reported to be neurotoxic, only a few of them lead to side effects such as peripheral neuropathy.[2]

Paclitaxel (Taxol®) is a novel cytotoxic agent isolated from the bark of the plant Taxus brevifolia, with pivotal activity against different tumors such as the breast, ovarian, lung, and head-and-neck cancers. However, this drug stimulates microtubule assembly leading to neuropathy as one of its side effects.[3] One of the most important limiting factors of paclitaxel is peripheral sensory neuropathy, especially with increasing doses of the drug even in combination form with other neurotoxic cytotoxic agents such as cisplatin.[4] Therefore, it is necessary to look for agents that effectively reduce neuropathy pain.[5] Different mechanisms are involved in paclitaxel-induced neuropathy pain, such as the involvement of opioids and adrenergic receptors, the release of inflammatory factors, and the stress-oxidative system.[6],[7]

Seaweeds are attractive marine organisms in the biomedical area, especially because of their bioactive metabolites with antimicrobial, anti-inflammatory, antioxidant, antiviral, anti-Alzheimer, and antitumor activities.[8],[9],[10] One of the most interesting compounds extracted from these organisms that have currently received high attention from academic researchers and pharmaceutical companies for drug design includes fucoidans, a type of sulfated polysaccharides isolated from brown algae, showing different pharmacologic activities such as anti-inflammatory and anticancer.[9] Other metabolites biosynthesized by seaweeds with economic effects in food and in human health include natural pigments and carotenoids antioxidant agents reducing the incidence of many disorders, especially those mediated by light.[10]

Genus of Sargassum is widely distributed in tropical oceans of the world. There are various reports on their secondary compounds and also their biological activities.[11] They usually contain terpenoids that exhibit biological activities such as cell antioxidant activity, toxicity, vasodilatory effects, and inhibition of acetylcholinesterase.[12],[13]

Iran, in the South part, has more than that of 1260 km coastal lines. Moreover, >250 species of different seaweeds have been reported from this area.[14] There have been only a few studies on the pharmacological effects of these marine organisms in this region of Iran. Because of anti-inflammation of Sargassum glaucescens, a seaweed from the Persian Gulf, in this study, we investigated if this herb can prevent or reduce paclitaxel-induced neuropathy pain. The role of opioid receptor and alpha-2 adrenergic receptor have been evaluated as possible mechanisms.

 Materials and Methods



Authentication of plant material

The seaweed was collected from the Persian Gulf coasts of Iran, Bushehr Province. Voucher specimen was deposited in the herbarium of the School of Pharmacy and Pharmaceutical Sciences of Isfahan University of Medical Sciences and was identified by the Agricultural and Natural Resources Research Center of Bushehr (Code: 2662).

Preparation of the extracts

Collected and identified plant sample was cut into small pieces, air-dried, and stored in glass containers until the time of extraction. About 500 g of the dried plant material was macerated for 6 days with the solvents methanol: Ethyl acetate (1:1). The extracts were filtered and evaporated at room temperature by rotary evaporator to the dry residue (6.7 g) and stored in low temperature pending biological analysis.

Animals

NMRI (Naval Medical Research Institute) male mice weighing 20–30 g were used. They were housed under a 12-h light/dark cycle and had enough access to water and food. The animals were assigned to different treatment groups randomly (n = 6–8 in each group) and all procedures were conducted in agreement with the guidelines for the care of laboratory animals of the Ethics Committee of Isfahan University of Medical Sciences and followed the European Commission Directive (86/609/EEC) for animal experiments.

Chemicals

Paclitaxel was purchased from the Sigma-Aldrich company, Inc., (St. Louis, MO, USA) and dissolved in the solvent ethanol-cremophor-saline (5:5:90, v/v/v). To understanding the role of opioids receptors, naloxone was obtained from Touliddarou (Tehran, Iran). Yohimbine from Touliddarou, alpha-2 adrenergic antagonist, was used to evaluate the role of adrenergic receptors. They all dissolved in normal saline 0.9%.

General procedures for drug treatments

To induce the neuropathy pain, paclitaxel was injected on the 1st day and given daily for 4 additional days (2 mg/kg) intraperitoneally (i.p.) with a cumulative dose of 10 mg/kg. Sham group received vehicle.

To assess the effects of S. glaucescens extract on the development (chronic effect) of neuropathy pain, S. glaucescens extract (25, 50, 100, 150, and 200 mg/kg i.p.) were administered once daily from the 6th day until the 10th day. Cold allodynia test was assessed on the 11th day after the first paclitaxel injections [Figure 1].[15]{Figure 1}

To determine the effect of S. glaucescens extract on the expression (acute effect) of paclitaxel-induced neuropathy pain, it was injected 30 min before pain assessment on the 11th day in another group of mice.

Behavioral tests of neuropathy pain

Animals were placed on the top of an aluminum mesh table. They were permitted to adapt for 15 min. Acetone drop was applied to the plantar surface of each hind paw by a needle for determination of cold allodynia and repeated within 30 s interval for three times. The time spent for licking the paw was checked. The following formula was used to calculate and express the percentage of licking frequency (number of trials attending the hind-paw/total number of trials) ×100. The total time was calculated if the percentage was > 66 (s).

Evaluation of the role of other receptors (opioid and alpha-2 adrenergic receptors)

To identify the role of the opioid system in the anti-nociceptive effects of S. glaucescens extract, animals were treated by naloxone (1 mg/kg i.p.) on the 11th day. Yohimbine (10 mg/kg) was also applied.

Data analysis

Data are presented as mean ± standard deviation. Data were compared by one-way analysis of variance (ANOVA) followed by Fisher's least significant difference post hoc test for multiple comparisons. Two-way ANOVA was used to compare the antagonistic effect of naloxone. Time-course analysis of behavioral data was compared by repeated-measures ANOVA for each experimental group.

 Results



Chronic Effect of S. glaucescens extract on the development of cold allodynia.

Chronic treatment with S. glaucescens extract (100, 150, and 200 mg/kg i.p.) from the 6th day until the 10th day reduced the duration of paw licking [Figure 2].{Figure 2}

Acute Effect of S. glaucescens extract on the expression of cold allodynia.

Acute administration of S. glaucescens extract (100 and 200 mg/kg i.p.) 30 min before the acetone test on the 11 significantly reduced paw licking [Figure 3]. Naloxone and yohimbine could not reverse the result.{Figure 3}

 Discussion



In this study, we observed that of S. glaucescens significantly reduced neuropathy pain induced with paclitaxel. In both acute and chronic form, however, blocking of adrenergic and opioids did not reverse the results. Several mechanisms have been proposed about the possible mechanism of paclitaxel-induced neuropathy pain. It has been shown that inhibition of complex III, a mitochondrial reactive oxygen species producing site, increased antinociceptive effects on the development and maintenance of paclitaxel-induced pain.[2]

Sargassum species are brown seaweed from tropical regions. These organisms are rich sources of bioactive compounds such as proteins, vitamins, dietary fibers, carotenoids, and minerals and also many secondary metabolites such as flavonoids, terpenoids, polyphenols, sterols, sulfated polysaccharides, sargaquinoic acids and also sargachromenol, and pheophytine. Hence, Sargassum species have great potential as pharmaceutical and nutraceutical sources.[13],[16],[17],[18],[19],[20]

Similar studies are now looking to find a substance to control the side effects of paclitaxel and other chemotherapeutic agents. Yang et al., showed that dextromethorphan and oxycodone can be used to treat neuropathy pain in mice. Their results demonstrated that acute administration of oxycodone (1–5 mg/kg) suppressed SNL-induced mechanical allodynia. Cold allodynia is a kind of Nociception assay to assess the ability of an animal like mice to the feeling of pain.[21]

Considering our results, S. glaucescens extract at concentrations of 100,150, and 200 mg/kg were more effective on improving paclitaxel side effects treatment. Chronic treatment reduced the duration of paw licking.

Numerous studies showed different properties of seaweeds including suppression of inflammation.[21] It should be noted that a similar study that was conducted by Dang Diem Hong and Partners, demonstrated that extracts of the Sargassum swartzii have potent analgesic and anti-inflammatory effects, without any serious toxic effect at the highest possible doses.[22] In addition, we investigated the effects of naloxone and Yohimbine on S. glaucescens extract-induced. It was shown that there is no significant paw withdrawal frequency and paw licking duration amongst mice which were administrated by naloxone or yohimbine compared to mice that were not administrated by those, it can be concluded that opioid and alpha-2 adrenergic receptor may be involved in this process. Therefore, acute and chronic administration of S. glaucescens extract can be used to reduce the side effects of paclitaxel on feeling pain and nociceptive sensitivity.

 Conclusions



These results indicated that S. glaucescens extract, when administered during chemotherapy or ever after that can prevent the expression and development of neuropathy pain. This effect is not inhibited by naloxone. Further researches are necessary to clarify the possible mechanisms of S. glaucescens extract in the attenuation of neuropathy pain.

Acknowledgments

The authors are thankful to the Vice Chancellor of Research, Isfahan University of Medical Sciences and Iran National Science Foundation (INSF) for financial support.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.

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