نتایج جستجو برای: reactive oxygen species

تعداد نتایج: 794794  

Journal: :journal of paramedical sciences 0
majid mahdavi department of biology, faculty of natural science, university of tabriz, tabriz, iran. reza yekta department of biology, faculty of natural science, university of tabriz, tabriz, iran. saeed hesami tackallou department of biology, garmsar branch, islamic azad university, tehran, iran.

extremely low frequency (elf) electromagnetic field (elf-emfs) are widely employed in electrical appliances and different equipment such as television sets, elf-emfs can  affect biological systems by increasing production  ros. the altered balance between ros generation and elimination plays a critical role in a variety of pathologic conditions. ros levels have been observed in several hematopo...

AM Domijan, AY Abramov, MC Walker, S Kovac, S Williams,

Seizure activity has been proposed to result in the generation of reactive oxygen species (ROS), which then contribute to seizure-induced neuronal damage and eventually cell death. Although the mechanisms of seizure-induced ROS generation are unclear, mitochondria and cellular calcium overload have been proposed to have a crucial role. We aim to determine the sources of seizure-induced ROS and ...

Journal: :مجله علوم اعصاب شفای خاتم 0
s kovac university hospital münster, münster, germany s williams university college london, london, uk am domijan university college london, london, uk mc walker university college london, london, uk ay abramov university college london, london, uk

seizure activity has been proposed to result in the generation of reactive oxygen species (ros), which then contribute to seizure-induced neuronal damage and eventually cell death. although the mechanisms of seizure-induced ros generation are unclear, mitochondria and cellular calcium overload have been proposed to have a crucial role. we aim to determine the sources of seizure-induced ros and ...

Journal: :journal of biomedical physics and engineering 0
e kazemi smj mortazavi 1. medical physics department, school of medicine, shiraz university of medical sciences, shiraz, iran a ali-ghanbari s sharifzadeh r ranjbaran z mostafavi-pour

background , despite numerous studies over a decade, it still remains controversial about the biological effects of rf emf emitted by mobile phone telephony. objective , here we investigated the effect of 900 mhz gsm on the induction of oxidative stress and the level of intracellular reactive oxygen species (ros) in human mononuclear cells, monocytes and lymphocytes as defence system cells. met...

Journal: :iranian journal of basic medical sciences 0
wahyu widowati medical research center, faculty of medicine, maranatha christian university, jl. prof. drg. suria sumantri 65, bandung 40164, west java, indonesia rahma micho widyanto biomolecular and biomedical research center, aretha medika utama, jl. babakan jeruk 2 no 9, bandung, 40163, west java, indonesia winsa husin medical research center, faculty of medicine, maranatha christian university, jl. prof. drg. suria sumantri 65, bandung 40164, west java, indonesia hana ratnawati medical research center, faculty of medicine, maranatha christian university, jl. prof. drg. suria sumantri 65, bandung 40164, west java, indonesia dian ratih laksmitawati faculty of pharmacy, pancasila university, jl jagakarsa, jakarta, indonesia bambang setiawan department of medical chemistry and biochemistry, faculty of medicine, lambung mangkurat university, banjarmasin, south kalimantan, indonesia

objective(s):many studies have reported that tea consumption decreases cardiovascular risk, but the mechanisms remain unclear. green tea is known to have potent antioxidant and free radical scavengingactivities. this study aimed to investigate whether green tea extract (gte) can protect endothelial progenitors cells (epcs) against oxidative stress through antioxidant mechanisms. materials and m...

Journal: :Circulation Research 2008

Physical activities are associated with increased production of reactive oxygen species. The production of reactive oxygen species is dependent of the intensity, duration and type of activity. Although the physiological amounts of reactive oxygen species are necessary to regulate cell reactions, their excessive production can cause numerous damages to the structure and function of cells and wea...

Journal: :iranian journal of basic medical sciences 0
gulay hacioglu department of physiology, faculty of medicine, giresun university, turkey ayse senturk department of clinical biochemistry, faculty of medicine, karadeniz technical university, turkey imran ince department of clinical biochemistry, faculty of medicine, karadeniz technical university, turkey ahmet alver department of clinical biochemistry, faculty of medicine, karadeniz technical university, turkey

objective(s): exposing to stress may be associated with increased production of reactive oxygen species (ros). therefore, high level of oxidative stress may eventually give rise to accumulation of oxidative damage and development of numerous neurodegenerative diseases. it has been presented that brain-derived neurotrophic factor (bdnf) supports neurons against various neurodegenerative conditio...

Journal: :journal of reproduction and infertility 0

background: this case-control study was designed with the aim of evaluating the role of sperm, oxidative stress and dna damage in idiopathic recurrent pregnancy loss (irpl). this pilot study is the first study done on the indian population which reports the association between dfi, tac and ros in couples experiencing irsa. methods: twenty infertile men with a history of irpl and 20 fertile cont...

Journal: :iranian journal of toxicology 0
sankar kumar dey department of bio-medical lab science & management vidyasagar university, midnapore west 2 bengal, india somenath roy department of human pahysiology with community health, vidyasagar university, midnapore west bengal, india

introduction: the impact of chromium exposure was studied on liver, kidney, testis, spleen, cerebrum and cerebellum of male wistar rats (80-100 g body weight). material & method: it was observed that treatments of rats with chromium (i.p. at a dose of 0.8 mg / 100 g body weight per day) for a period of 28 days caused significant increase in chromium content while declining the body weight along...

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