نتایج جستجو برای: dormancy and reactive oxygen species

تعداد نتایج: 16940899  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1388

هدف از این مطالعه بررسی ارتباط رادیکالهای آزاد موجود در مایع منی با آسیب dna، پتانسیل غیر طبیعی غشاء میتوکندری، اپوپتوز و میزان لقاح در بیماران نابارور با علت مردانه می باشد. برای رسیدن به این هدف از نمونه اسپرم 120 زوج مراجعه کننده به پژوهشکده رویان جهت درمان ناباروری به علت فاکتور مردانه استفاده شد و از نظر پارامترهای اسپرمی مورد مطالعه قرار گرفت. نمونه مایع منی به میزان 1 میلی لیتر پس از آنا...

Journal: :Plant physiology 2016
Samuel Elias Wuest Matthias Anton Philipp Daniela Guthörl Bernhard Schmid Ueli Grossniklaus

Correlative control (influence of one organ over another organ) of seeds over maternal growth is one of the most obvious phenotypic expressions of the trade-off between growth and reproduction. However, the underlying molecular mechanisms are largely unknown. Here, we characterize the physiological and molecular effects of correlative inhibition by seeds on Arabidopsis (Arabidopsis thaliana) in...

Journal: :Free Radical Research 2010

Journal: :Journal of Indian Society of Periodontology 2013

Journal: :iranian journal of pharmaceutical research 0
jia-le song department of food science and nutrition, pusan national university, jangjeon-dong 30, geumjung-gu, busan 609-735, south korea yang gao department of pharmacy, affiliated hospital to yangzhou university, no.98 nantong west road, yangzhou city, 225001, people’s republic of china

the present study was designed to investigate the protective effect of ethanol extracts from lindera coreana leaves (lce) on uvb-induced oxidative stress in hacat keratinocytes. the hacat cells were pretreated with lce for 24 h and then exposed to uvb (20 mj/cm2) for 2 h. uvb significantly decreased the cell viability (p<0.05). lce did not exhibit significantly cytotoxic effects and increased t...

Journal: :iranian journal of pharmaceutical research 0
m rezaei n rezvani a ahmadiani

programmed cell death is a highly regulated form of cell death, mostly distinguished by the activation of a family of cystein-aspartate proteases (caspases) that cleave various proteins resulting in morphological and biochemical changes characteristic of this form of cell death. several recent studies have addressed the role of programmed cell death in inflammatory and chronic pain states. casp...

Journal: :iranian journal of allergy, asthma and immunology 0
changbiao chen department of respiratory, affiliated tongji hospital of tongji medical college, huazhong university of science and technology, wuhan 430030 and department of respiratory, hannan district people&amp;#039;s hospital of wuhan, wuhan 430030, china. ran wang department of respiratory, the first affiliated hospital of anhui medical university, hefei 230001, china. sijing zhou department of occupational medicine, third people&amp;#039;s hospital of hefei, hefei 230001, china. jianping zhao department of respiratory, affiliated tongji hospital of tongji medical college, huazhong university of science and technology, wuhan 430030, china. yongjian xu department of respiratory, affiliated tongji hospital of tongji medical college, huazhong university of science and technology, wuhan 430030, china.

bronchial asthma is the common chronic inflammatory disease and is characterized by chronic airway inflammation, airway remodeling, and airway hyperreactivity (ahr). aim of this study was to investigate the effects of mitochondrial atp-sensitive potassium channels (mitokatp) on the proliferation and secretion of human airway smooth muscle cells (hasmcs). hasmcs were treated with the serum from ...

Journal: :journal of lasers in medical sciences 0
shirin farivar department of genetics, faculty of biological science, shahid beheshti university (gc),tehran,iran talieh malekshahabi department of genetics, faculty of biological science, shahid beheshti university (gc),tehran,iran reza shiari departmentof pediatrics, shahid beheshti university of medical sciences,tehran,iran

the use of low level laser to reduce pain, inflammation and edema, to promote wound, deeper tissues and nerves healing, and to prevent tissue damage has been known for almost forty years since the invention of lasers. this review will cover some of the proposed cellular mechanisms responsible for the effect of visible light on mammalian cells, including cytochrome c oxidase (with absorption pea...

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

abstract the present study deals with a comparison between reactive and pre-emptive focus-on-form in terms of application and efficiency. it was conducted in an intermediate english class in shahroud. 15 male learners participated in this research and their age ranged from 18 to 25. a course book, new interchange 3, and a complementary book were used. every session the learners gave lectures o...

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