Context: Albizia species are reported to exhibit many biological activities including antiovulatory properties in female rats and antispermatogenic and antiandrogenic activities in male rats. Objective: The present study investigates the flavonoids of Albizia amara (Roxb.) B. Boivin (Fabaceae) leaves and evaluates their activity on gene expression of fertility and antioxidant glutathione-S-transferaserelated genes of treated female mice in addition to their effect on DNA damage. Materials and methods: Plant materials were extracted by using 70% methanol for 48 h, the extract was chromatographed on a polyamide 6S column, each isolated compound was purified by using Sephadex LH-20 column; its structure was elucidated by chemical and spectral methods. Both the leaves extract and myricitrin (200, 30 mg/kg bw/d, respectively) were assayed for their effect on DNA damage in female mice after four weeks treatment using Comet assay. Their modulatory activity on gene expression of fertility (aromatase CYP19 and luteinizing hormone LH) and antioxidant glutathione-S-transferase (GST)-related genes of treated female mice were investigated by real-time PCR (qPCR). Results: Quercetin-3-O-gentiobioside, myricitrin, quercetin-3-O-a-rhamnopyranoside, myricetin, quercetin and kaempferol were isolated and identified from the studied taxa. Myricitrin and the extract induced low rate of DNA damage (4.8% and 5%, respectively), compared with the untreated control (4.2%) and significantly down-regulated the expression of CYP19 and LH genes and up-regulated GST gene. Discussion and conclusion: Our results highlight the potential effect of the leaves extract of Albizia amara and myricitrin as fertility-regulating phytoconstituents with ability to protect DNA from damage and cells from oxidative stress. ARTICLE HISTORY
Aim: The present study aimed to investigate the protective effect of Artemisia Judaica (A. Judaica) against doxorubicin (DOX)-induced toxicity in male mice. Place and Duration of Study: Department of Cell Biology, Genetic engineering and biotechnology division, National research centre, Egypt, between March 2016 and February 2017. Methodology: Male mice were divided into 7 groups (n=10) and treated as follow: the control group, the group treated with DMSO, the group injected (i.p.) with DOX , the groups treated with low and high dose of A. judaica extract and the groups injected (i.p.) with DOX and treated with low and high dose of A. judaica extract. Femur, testes and liver samples were collected for different analyses. Results: Our data showed that A. judaica significantly reversed the DOX-induced elevation of DNA fragmentation rate and MDA level in liver tissue, as well as declined chromosomal aberrations (CAs) either in the bone marrow cells or in the spermatocyte cells. Meanwhile, the expression of Ahmed et al.; ARRB, 18(3): 1-10, 2017; Article no.ARRB.35990 2 apoptosis-related genes (Bax and Caspase-3) in liver tissues was analyzed by quantitative real-time PCR (qRT-PCR) and results revealed that genes expression were up-regulated in DOX treated mice however; the administration of A. judaica didn't alter such increase. Conclusion: Overall, the findings indicated that A. judaica may attenuate the DOX-induced toxicity. However; further studies are required to confirm the protective effect of A. judaica extract against toxicity caused by DOX drug. Original Research Article
In this research, several physical and chemical properties were identified for some commercial fruit drink samples (pear, cherry, strawberries and red grape) stored at 4°C for six months. Color, pigment, tannin contribution and anthocyanin analyses were done monthly. Commercial fruit drinks were ingested into mice to evaluate its influences on chromosomal aberrations and biochemical contents (glucose content, GOT and GPT). Also, the influence of these drinks on histochemical and histopathological in the liver of mice was evaluated. Statistical analyses of obtained results of studied properties revealed that the effects of storage time on L*, a*, b*, C*, H*, BI, polymeric color, color density and total anthocyanin were found to be high correlation coefficient in commercial drink. The total anthocyanin values decreased with increasing storage time in pear and strawberry drinks, but increased with increasing storage time in cherry and red grape drinks. The results show that the all commercial fruit drink caused a highly significant increase in structural chromosomal aberrations more than control. GOT and GPT activity and glucose content in both plasma and liver were also more stimulated by commercial drink. Moreover, results showed a considerable increase in all parameters compared to the control of especially the commercial fruit drink. The results were discussed with particular references to the evaluation of cytogenetic studies on fruit drink in general. In the present study, the histological examination of liver treated with commercial drink revealed liver tissue mostly normal. Also, pigment of commercial drink or food coloring agent has toxicological and histochemical harmful effects on liver.
The aim of this study was to investigate the effect of treatment with grape seed extract (GSE) on the neurotoxic and genotoxic effects of acute malathion exposure. Rats received malathion (150 mg/kg by i.p. injection) for two successive days alone or combined with GSE at doses of 150 or 300 mg/kg, orally or with GSE at 300 mg/kg and atropine at a dose of 2 mg/kg, i.p. Malondialdehyde (MDA), reduced glutathione (GSH), nitric oxide, paraoxonase (PON1) were determined in cortex, striatum, and rest of brain tissue (subcortex). Interleukin-1β (IL-1β), and butyrylcholinesterase (BChE) activities were determined in brain regions. Cytogenetic analyses for chromosomal aberrations in somatic and germ cells, micronucleus test, Comet assay, DNA fragmentation of liver cells and histopathological examination of brain and liver sections were also performed. Malathion resulted in an increase in MDA, nitric oxide; a decrease in GSH and PON1 activity in different brain regions. IL-1β increased, while BChE activity decreased in brain after the administration of malathion. The insecticide also caused marked structural and numerical chromosomal aberrations and increased liver DNA fragmentation. The Comet assay showed a significant increase in DNA damage of peripheral blood lymphocytes. These effects of malathion were alleviated with the administration of GSE alone or combined with atropine. Addition of atropine to treatment with GSE was associated with significant decrease in MDA, BChE and chromosomal aberrations compared with GSE only treatment. Our data indicate that GSE protects against malathion neurotoxic and genotoxic effects, most likely through reducing brain oxidative stress and inflammatory response.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.