نتایج جستجو برای: reperfusion arrhythmia

تعداد نتایج: 55229  

Objective(s):This study aimed to examine the hypothesis that an antiarrhythmic effect might be obtained by ischemic preconditioning of the liver, and also to characterize the potential underlying mechanisms. Materials and Methods: Male Wistar rats were anesthetized by thiopental sodium (50 mg/kg, IP) followed by IV injection of heparin (250 IU). Remote ischemic preconditioning (RIPC) was induce...

Journal: :iranian journal of pharmacology and therapeutics 0
pitchai balakumar bharat pateliya gurfateh singh manjeet singh

organ damage after reperfusion of previously viable ischemic tissues is defined as ischemia/reperfusion injury. the pathophysiology of ischemia/reperfusion injury involves cellular effect of ischemia, reactive oxygen species and inflammatory cascade. protection against ischemia/reperfusion injury may be achieved by preconditioning or postconditioning. in this review, we discuss basic mechanisms...

Journal: :medical journal of islamic republic of iran 0
enas al-yaseen obstetric-medicine specialist, department of medicine, al-amiri hospital & maternity hospital, ministry of health (moh), kuwait. rawda, kuwait city.سازمان اصلی تایید شده: 0 موسسات و مراکز خارج از کشور ashraaf al-na'ar department of family medicine, khaldia clinic – moh, kuwait.سازمان اصلی تایید شده: 0 موسسات و مراکز خارج از کشور mohammed hassan department of obstetrics & gynecology, maternity hospital, moh, kuwait.سازمان اصلی تایید شده: 0 موسسات و مراکز خارج از کشور gassan al-ostad montreal, canada, department of obstetrics & gynecology,maternity hospital, moh, kuwait.سازمان اصلی تایید شده: 0 موسسات و مراکز خارج از کشور ensaf ibrahim department of obstetrics & gynecology, maternity hospital, moh, kuwait.سازمان اصلی تایید شده: 0 موسسات و مراکز خارج از کشور

background: increased heart rate is a normal physiological adaptation occurring during pregnancy. some women have severe tachycardia requiring medical attention. aim of this study is to determine the number of women with benign symptomatic palpitations who receive treatment. method: we performed a retrospective chart review of all women who were referred to our obstetric-medicine clinic for eva...

Journal: :Journal of the American College of Cardiology 2007
Hiromasa Otake Junya Shite Oscar Luis Paredes Toshiro Shinke Ryohei Yoshikawa Yusuke Tanino Satoshi Watanabe Toru Ozawa Daisuke Matsumoto Daisuke Ogasawara Mitsuhiro Yokoyama

OBJECTIVES This study evaluated the efficacy of catheter-based transcoronary myocardial hypothermia (CTMH) in pigs with acute myocardial ischemia. BACKGROUND Although it has been suggested that hypothermia therapy can attenuate myocardial necrosis, few applications have been accepted for clinical use. METHODS This study comprises 2 substudies. In both studies, pigs underwent 60 min of coron...

Journal: :American journal of physiology. Heart and circulatory physiology 2009
Catherine E Huggins Claire L Curl Ruchi Patel Peter L McLennan Mandy L Theiss Thierry Pedrazzini Salvatore Pepe Lea M D Delbridge

Clinically and experimentally, a case for omega-3 polyunsaturated fatty acid (PUFA) cardioprotection in females has not been clearly established. The goal of this study was to investigate whether dietary omega-3 PUFA supplementation could provide ischemic protection in female mice with an underlying genetic predisposition to cardiac hypertrophy. Mature female transgenic mice (TG) with cardiac-s...

2012
S.Q. Savergnini A.M. Reis R.A.S. Santos P.E.B. Santos A.J. Ferreira A.P. Almeida

Little is known about age-related differences in short-term effects of estradiol on ischemia-reperfusion (I/R) insults. The present study was designed to evaluate the effects of short-term treatment with estradiol on reperfusion arrhythmias in isolated hearts of 6-7-week-old and 12-14-month-old female rats. Wistar rats were sham-operated, ovariectomized and treated with vehicle or ovariectomize...

Journal: :American journal of physiology. Heart and circulatory physiology 2013
Akihiro Masuzawa Kendra M Black Christina A Pacak Maria Ericsson Reanne J Barnett Ciara Drumm Pankaj Seth Donald B Bloch Sidney Levitsky Douglas B Cowan James D McCully

Mitochondrial damage and dysfunction occur during ischemia and modulate cardiac function and cell survival significantly during reperfusion. We hypothesized that transplantation of autologously derived mitochondria immediately prior to reperfusion would ameliorate these effects. New Zealand White rabbits were used for regional ischemia (RI), which was achieved by temporarily snaring the left an...

Journal: :Physiological research 2004
J Neckár B Ostádal F Kolár

We examined cardioprotective effect of chronic hypoxia and the time course of its recovery under normoxic conditions. Adult male Wistar rats were exposed to intermittent hypobaric hypoxia (7000 m, 8 h/day, 35 exposures) and susceptibility of their hearts to ischemia-induced ventricular arrhythmias and myocardial infarction was evaluated in anesthetized open-chest animals subjected to 30-min cor...

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