نتایج جستجو برای: dna fragmentation

تعداد نتایج: 534815  

Journal: :international journal of fertility and sterility 0
adel zalata ayman z el-samanoudy dalia shaalan youssef el-baiomy taymour mostafa

background: use of cellular phones emitting radiofrequency electromagnetic field (rf-emf) has been increased exponentially and become a part of everyday life. this study aimed to investigate the effects of in vitro rf-emf exposure emitted from cellular phones on sperm motility index, sperm dna fragmentation and seminal clusterin (clu) gene expression. materials and methods: in this prospective ...

Journal: :international journal of reproductive biomedicine 0
taiebeh ghyasvand mohammad taghi goodarzi iraj amiri jamshid karimi marzieh ghorbani

background: oxidative stress in reproductive system leads to sperm dna damage and sperm membrane lipid peroxidation and may play an important role in the pathogenesis of male infertility, especially in idiopathic cases. antioxidants such as carotenoids function against free radical damages. objective : the aim of this study was to determine the levels of lycopene, beta-carotene and retinol in s...

دانایی, شهلا, نوری , محمد, صادقپور, سونیا , قاسم نژادبرنجی, حجت , قاسم‌زاده , عالیه ,

   Background & Aims: More than half of all infertility cases are contributed by males. One of the important causes of infertility is free radicals in seminal fluid which causes sperm DNA oxidation and alteration in organic bases in DNA structure that finally leads to sperm destruction and reduction of its movement and fertility ability Therefore, in addition to semen analysis, sperm function t...

Journal: :Evidence Based Women's Health Journal 2019

Journal: :Translational Andrology and Urology 2017

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم پایه 1392

چکیده لیپوتوکسیسیتی ازدیاد غلظت چربی داخل سلولی یا بافتی است که از طریق مکانیسم های مختلف موجب بروز اثرات مخرب در سلول و یا در نهایت مرگ سلول خواهد شد. بیماریهای قلبی_عروقی ناشی از لیپوتوکسیسیتی در جمعیت انسانی و همچنین برخی از گونه های حیوانی به طور چشمگیری در حال افزایش می باشند. یافته های متعدد حکایت از آن دارد که تاثیر اسیدهای چرب اشباع و غیر اشباع در بروز لیپوتوکسیسیتی سلولی متفاوت از هم ...

Journal: :iranian journal of radiation research 0
m. e. parsanezhad department of obstetrics and gynecology, school of medicine, shiraz university of medical sciences, shiraz, iran s. m. j. mortazavi ionizing and non-ionizing radiation protection research center (inirprc), shiraz university of medical sciences, shiraz, iran t. doohandeh department of obstetrics and gynecology, school of medicine, shiraz university of medical sciences, shiraz, iran b. namavar jahromi department of obstetrics and gynecology, school of medicine, shiraz university of medical sciences, shiraz, iran h. mozdarani department of medical genetics, faculty of medical sciences, tarbiat modares university, tehran, iran a. zarei ivf center, shiraz university of medical sciences, shiraz, iran

background: the health effect of rapidly increasing everyday exposure of humans to radiofrequency radiation is a major global concern. mobile phone jammers prevent the mobile phones from receiving signals from base stations by interfering with authorized mobile carriers’ services. in spite of the fact that mobile jammer use is illegal, they are occasionally used in offices, shrines, conference ...

Amir Amniattalab, Mazdak Razi

Background The current study aimed to evaluate the effects of phosalone (PLN) as an organophosphate (OP) compound on testicular tissue, hormonal alterations and embryo development in rats. MaterialsAndMethods In this experimental study, we divided 18 mature Wistar rats into three groups-control, control-sham and test (n=6 per group). Animals in the test group received one-fourth the lethal dose...

Journal: :iranian biomedical journal 0
بهنام کمالی دهقان behnam kamalidehghan فاطمه احمدی پور fatemeh ahmadipour محمد ابراهیم نورالدین mohamed ibrahim noordin

zerumbone is a cytotoxic compound isolated from the herbal plant, zingiber zerumbet smith, which exhibits antitumor activity [1-2], anti-inflammatory effects and possesses anti-proliferative potentials in a variety of cell lines [3-4]. dna fragmentation indicates an early event of apoptosis leading to cell death due to the absence of new cellular proteins synthesizing for cell survival. previou...

Journal: :cell journal 0
marziyeh tavalaee abbas kiani-esfahani mohammad hossein nasr-esfahani

objective: the present study aimed to simultaneously evaluate the association between expression of three potential factors [post-acrosomal sheath ww domain-binding protein (pawp), phospholipase cζ (plcζ), and truncated form of the kit receptor (tr-kit)] as candidates of oocyte activation with fertilization rate and early embryonic development. materials and methods: in this experimental study,...

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