نتایج جستجو برای: reactive oxygen

تعداد نتایج: 311130  

2017
Teppei Takeshima Yasushi Yumura Kengo Yasuda Hiroyuki Sanjo Shinnosuke Kuroda Hiroyuki Yamanaka Akira Iwasaki

This study investigated the correlation between sperm motion parameters obtained by a computer-assisted semen analyzer and levels of reactive oxygen species in unwashed semen. In total, 847 patients, except for azoospermic patients were investigated. At the time of each patient's first consultation, semen parameters were measured using SMAS™ or CellSoft 3000™, and production of reactive oxygen ...

خوش طبیعت , لعیا , مهدوی, مجید ,

Abstract During normal cellular activities Reactive Oxygen Species (ROS) and Reactive Nitrogen Species (RNS) are produced. In addition to beneficial functions they play a critical role in cell death and prevent apoptosis. Every cell is equipped with an extensive antioxidant defense system to combat the excessive production of active radicals. Oxidative stress occurs with destruction of cellu...

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...

Iram Murtaza, Qamar Javed Sobia Mushtaq

Objective(s):  The role of the Apoptosis repressor with caspase recruitment domain (ARC) in apoptosis and in certain hypertrophic responses has been previously investigated, but its regulation of Endothelin-1 induced cardiac hypertrophy remains unknown. The present study discusses the inhibitory role of ARC against endothelin–induced hypertrophy. Results:In present study Endothelin treated car...

Journal: :Journal of Clinical Biochemistry and Nutrition 2009

ژورنال: طب کار 2013
حیدری شایسته, توکل, رنجبر, اکرم,

Background: The terms Reactive Oxygen Intermediates or Reactive Oxygen Species (ROS) are used to describe the molecules as highly reactive oxygen molecules that will chemically oxidize neighboring susceptible molecules. A prominent feature of radicals is that they have extremely high chemical reactivity, which explains not only their normal biological activities, but how they inflict damage on ...

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