نتایج جستجو برای: comet assay

تعداد نتایج: 225520  

Amin Mirzaeian Hamideh Jafari-Ghahfarokhi Javad Saffari-Chaleshtori Marzieh Sadeghiani Mehdi Allahbakhshian-Farsani Morteza Hashemzadeh-Chaleshtori Narges Abdian Payam Ghasemi-Dehkordi

Background & Aims: Induced pluripotent stem cells (iPSCs) have the capability to undergo unlimited selfrenewal and differentiation into all cell types in the body. These cells are artificially derived from a nonpluripotent cell, typically human dermal fibroblasts (HDFs). The study of cytogenetic stability of these cells, in order to use iPS cells and apply studies in therapeutic applications, i...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم پایه 1390

. در این مطالعه، احتمال شکسته شدن (فرگمنته شدن) dna طی تمایز اریتروئیدی سلول های اریترولوکمیک tf-1بررسی شد. به منظور تمایز اریتروئیدی سلول های tf-1، این سلول ها با فاکتورهایی مانند iu/ml 20 اریتروپویتین ، به همراه pg/ml 10000 gm-csf ، تیمار شدند. تکثیر سلول ها با روش سنجشmtt در سلول های کنترل و سلول های تیمار شده ارزیابی شد. همچنین سنتز هموگلوبین با روش های رنگ آمیزی بنزیدین ، الکتروفورز پروتئی...

Background: Occupational health is a sensitive field in many countries where occupational exposure needs attention due to the lack of awareness. Several businesses, including leather, textile, iron, steel, and dyeing industries use a variety of mutagenic and genotoxic chemicals. Exposure to these chemicals may pose serious health risks, including genetic damage to workers. Comet assay is a tech...

2010
Satomi Kawaguchi Takanori Nakamura Ayumi Yamamoto Gisho Honda Yu F. Sasaki

Although the Comet assay, a procedure for quantitating DNA damage in mammalian cells, is considered sensitive, it has never been ascertained that its sensitivity is higher than the sensitivity of other genotoxicity assays in mammalian cells. To determine whether the power of the Comet assay to detect a low level of genotoxic potential is superior to those of other genotoxicity assays in mammali...

Journal: :MethodsX 2020

Journal: :iranian journal of toxicology 0
neeraj kumar department of biotechnology, kurukshetra university kurukshetra, haryana, india. anita yadav department of biotechnology, kurukshetra university kurukshetra, haryana, india. sachin gulati department of biotechnology, kurukshetra university kurukshetra, haryana, india. kanu priya department of biotechnology, kurukshetra university kurukshetra, haryana, india. neeraj aggarwal department of microbiology, kurukshetra university kurukshetra, haryana, india. ranjan gupta department of biochemistry, kurukshetra university kurukshetra, haryana, india.

background: organophosphorus pesticides has been widely used in agriculture fields to control various crop insects and their extensive use pose human life at threat because of their adverse effects on human health. in this study, we checked the effects of gst polymorphism on ameliorative effect of curcumin and carvacrol against dna damages. methods: comet assay was used to assess the dna damage...

Journal: :iranian biomedical journal 0
حمید علیزاده نیلی hamid alizadeh nili حسین مزدرانی hossein mozdarani franck pellestor

background: various frequencies of sperm aneuploidy are reported in sperms of subfertile patients compared to normal individuals. moreover, sperm dna damage is shown to be associated with male infertility. in this study, the rate of dna damage and frequencies of aneuploidy in sperms of subfertile patients was investigated. methods: semen samples were obtained from healthy normal and subfertile ...

Journal: :avicenna journal of phytomedicine 0
soheila sepahi department of pharmacology, isfahan pharmaceutical sciences research center, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran. abbas jafarian-dehkordi department of pharmacology, isfahan pharmaceutical sciences research center, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran. maryam mirlohi food security research centre, school of nutrition and food sciences, isfahan university of medical sciences, isfahan, iran kobra shirani department of pharmacodynamy and toxicology, faculty of pharmacy, mashhad university of medical sciences, mashhad, iran. mahmoud etebari department of pharmacology, isfahan pharmaceutical sciences research center, school of pharmacy and pharmaceutical sciences, isfahan university of medical sciences, isfahan, iran.

objective: irinotecan is a botanical derivative and an anti-cancer drug with cytotoxic and genotoxic effects. the present study evaluated the effect of lactobacillus plantarum a7 on the genotoxic activity of irinotecan in a hepatocellular carcinoma cell line (hepg2) by comet assay. materials and methods: hepg2 were incubated with irinotecan (100 µm), heat-killed cells (0.025 µg/ml) + irinotecan...

Journal: :avicenna journal of phytomedicine 0
kobra shirani department of pharmacodynamy and toxicology, faculty of pharmacy, mashhad university of medical sciences, mashhad, i. r. iran javad behravan biotechnology research center and pharmacy school, mashhad university of medical sciences, mashhad, i. r. iran fatemeh mosaffa biotechnology research center and pharmacy school, mashhad university of medical sciences, mashhad, i. r. iran mehrdad iranshahi department of pharmacognosy and biotechnology, faculty of pharmacy, mashhad university of medical sciences, i. r. iran babak mehmankhah department of pharmacodynamy and toxicology, faculty of pharmacy, mashhad university of medical sciences, mashhad, i. r. iran kamal razavi-azarkhiavi department of pharmacodynamy and toxicology, faculty of pharmacy, mashhad university of medical sciences, mashhad, i. r. iran

objective: ferula szowitsiana has been widely used for medicinal purposes around the world. the anti-oxidant effect of f.szowitsiana had been proved. the current study aims to determine the protective effects of galbanic acid, a sesquiterpene coumarin from f. szowitsiana, against hydrogen peroxide (h2o2) - induced oxidative dna damage in human lymphocytes. materials and methods: human lymphocyt...

Journal: :iranian journal of radiation research 0
f. pakniat department of radiology, school of paramedicine, shahid beheshti university of medical sciences, tehran, iran h. mozdarani department of medical genetics, faculty of medical sciences, tarbiat modares university, tehran, iran b. nasirian malek-ashtar university, tehran, iran f. faeghi department of radiology, school of paramedicine, shahid beheshti university of medical sciences, tehran, iran

background: ˝radioadaptive response˝ is well-documented phenomenon appeared in low dose ionizing radiation received in vitro and in vivo. occupational exposure has always been a great concern for radiation workers therefore this study was performed to study radioadaptive response in terms of residual dna double strand breaks as an endpoint in peripheral blood leukocytes of occupationally expose...

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