نتایج جستجو برای: ischemic activity

تعداد نتایج: 1212613  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1389

introduction: diabetes mellitus is an growing national and international public health concern. the number of people affected by diabetes in world by 2030 will be 69% in developing countries. regular physical activity plays a key role in the management of type 2 diabetes melitus, particularly glycemic control. it has been recommended that peoples with type 2 diabetes participate in moderate-int...

Objective(s): The aim of this study is to determine the therapeutic effects of pomegranate seed oil, which is a powerful antioxidant and anti-inflammatory agent, on ovarian-ischemia and reperfusion injury in rats.Materials and Methods: Fifty-six  female albino Wistar rats were divided into 7 equal groups. Group 1; Sham Operation, Group 2; Ischemia, Group 3; Ischemia + Reperfusion, Group 4; Isch...

Journal: :Stroke 1991
D N Dao M Ahdab-Barmada N F Schor

BACKGROUND Glutamate has been implicated in the pathophysiology of acute hypoxic-ischemic encephalopathy. Glutamine synthetase is an enzyme found in astrocytes that converts glutamate to its nontoxic analogue, glutamine. The present study tests the hypothesis that brain glutamine synthetase activity increases in response to acute hypoxic-ischemic insults and not in response to chronic hypoxia-i...

Journal: :iranian biomedical journal 0
حمداله پناهپور hamdollah panahpour غلامعباس دهقانی gholam abbas dehghani

background: central renin angiotensin system has an important role on the cerebral microcirculation and metabolism. our previous work showed that inhibition of angiotensin converting enzyme (ace) activity prior to induction of ischemia protected the brain from severe ischemia/reperfusion (i/r) injuries. this study evaluated the impacts of post-ischemic inhibition of ace, enalapril, on brain inf...

Journal: :Circulation 1994
J D Parker M A Testa A H Jimenez G H Tofler J E Muller J O Parker P H Stone

BACKGROUND The morning increase in asymptomatic ambulatory ischemia may be due to heightened coronary tone, increased physical activity, or both. If ambulatory ischemia is primarily due to physical activity, then alterations in the schedule of physical activity should be reflected in a corresponding alteration in the occurrence of ischemia. This study was designed to examine the relation betwee...

Journal: :Bioorganic & medicinal chemistry 2007
Chan-Hee Park Jongwon Lee Hwi Young Jung Min Ji Kim Sun Ha Lim Hyung Tae Yeo Eung Chil Choi Eun Jeong Yoon Kyu Won Kim Jong Ho Cha Seok-Ho Kim Dong-Jo Chang Do-Yeon Kwon Funan Li Young-Ger Suh

The quinolone analog SQ-4004 has been identified as a potentially excellent anti-ischemic agent, which exhibited highly potent efficacy in reducing infarct volume size in vivo rat MCAO model (32.1% at 0.01mg/kg) and potent cardioprotective effect at myocardial infarction in vivo model (26.6% at 0.01mg/kg) while it exhibited highly reduced anti-bacterial activity. The mechanistic study revealed ...

Journal: :The Journal of clinical investigation 1994
M Kitakaze M Hori T Morioka T Minamino S Takashima H Sato Y Shinozaki M Chujo H Mori M Inoue

We have reported that ischemic preconditioning may limit infarct size by increasing 5'-nucleotidase activity. The present study tested whether alpha 1-adrenoceptor stimulation in ischemic preconditioning mediates the infarct size-limiting effect through augmentation of 5'-nucleotidase activity. The coronary artery was occluded four times for 5 min separated by 5 min of reperfusion (ischemic pre...

Journal: :American journal of epidemiology 2011
Elizabeth Mostofsky Eva Laier Emily B Levitan Wayne D Rosamond Gottfried Schlaug Murray A Mittleman

Regular physical activity is known to decrease the risk of cardiovascular disease, but the risk of ischemic stroke immediately following moderate or vigorous physical activity remains unclear. The authors evaluated the risk of acute ischemic stroke immediately following physical activity and examined whether the risk was modified by regular physical activity. In a multicenter case-crossover stu...

Journal: :modares journal of medical sciences: pathobiology 2007
mohamadreza bigdeli sohrab hajizadeh mahdi forouzandeh ali khoshbaten

objective: recent studies suggest that intermittent and prolonged normobaric hyperoxia (ho) results in ischemic tolerance to preventing ischemia brain injury. in this research attempts were made to see the changes in excitatory amio-acid transporter 3 (eaat3), tnf-α levels, and nf-κb activity following prolonged and intermittent nbho preconditioning. materials and methods: rats were divided i...

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