نتایج جستجو برای: ethanol activation

تعداد نتایج: 531394  

2014
Zhi Zhong Venkat K. Ramshesh Hasibur Rehman Qinlong Liu Tom P. Theruvath Yasodha Krishnasamy John J. Lemasters

BACKGROUND/AIMS An increase of ethanol metabolism and hepatic mitochondrial respiration occurs in vivo after a single binge of alcohol. Here, our aim was to determine how ethanol intake affects hepatic mitochondrial polarization status in vivo in relation to ethanol metabolism and steatosis. METHODS Hepatic mitochondrial polarization, permeability transition (MPT), and reduce pyridine nucleot...

2016
Mei Xu Siying Wang Zhenhua Ren Jacqueline A. Frank Xiuwei H. Yang Zhuo Zhang Zun-ji Ke Xianglin Shi Jia Luo

Both epidemiological and experimental studies suggest that ethanol may enhance aggressiveness of breast cancer. We have previously demonstrated that short term exposure to ethanol (12-48 hours) increased migration/invasion in breast cancer cells overexpressing ErbB2, but not in breast cancer cells with low expression of ErbB2, such as MCF7, BT20 and T47D breast cancer cells. In this study, we s...

this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this study examined the effect of prior knowledge and vocabulary teaching on iranian efl learners listening comprehension. the current study has two purposes: one is to investigate the effect of background knowledge on the second language listening comprehension of iranian intermediates and the other is to determine whether second language is facilitated by the introduction of unknown vocabularies in the form of prelistening activities. to conduct the study different instruments such as listening proficiency test and four listening tests such as pre and posttests were used and various statistical processes and techniques including paired-sample t-test, and analysis of variance (anova) were used. the findings of this study supported all three hypotheses tested. differences were found between the means of preteaching vocabulary variable, the background knowledge activation variable, and mean difference between these two strategies variable. subjects scored higher when the unknown words were taught in advance. likewise, subjects scored higher when they were asked some relevant questions about the topic than on those without them. there was, in addition, a significant difference between the means of preteaching vocabulary strategy and background knowledge activation strategy. in fact, preteaching vocabulary had a better effect in enhancing the students’ listening comprehension, in comparison to background knowledge activation strategy.

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1390

this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this stud...

Journal: :Journal of psychiatry & neuroscience : JPN 2003
Martin Davies

Ethanol is a chemically simple compound that produces many well-known effects in humans. The prevailing idea for many years was that ethanol and other alcohols exerted their effects on the central nervous system (CNS) by non-selectively disrupting the lipid bilayers of neurons. However, in recent years, there has been an accumulation of evidence pointing to the importance of ligand-gated ion ch...

Journal: :Alcoholism, clinical and experimental research 2000
T E Thiele I Cubero G van Dijk C Mediavilla I L Bernstein

BACKGROUND Previous studies have used c-Fos-like immunoreactivity (cFLI) to examine the neuroanatomical location of cells that are activated in response to ethanol administration. However, the use of cFLI alone fails to reveal the phenotypical identity of cells. In the present study we used double-labeling procedures to identify the neurochemical phenotype of neurons that showed ethanol-induced...

2013
Milagros Méndez

Biochemical and behavioral evidence indicate that the dopaminergic mesolimbic system plays a key role in the mechanisms of reinforcement and reward elicited by alcohol (ethanol) and other drugs of abuse. In addition, the dopaminergic activity of the nigrostriatal pathway has been proposed to determine brain sensitivity to ethanol, a process which could be associated to drug addiction. Besides d...

Journal: :Physiological genomics 2010
Susan M Brasser Meghan B Norman Christian H Lemon

Elevated alcohol consumption is associated with enhanced preference for sweet substances across species and may be mediated by oral alcohol-induced activation of neurobiological substrates for sweet taste. Here, we directly examined the contribution of the T1r3 receptor protein, important for sweet taste detection in mammals, to ethanol intake and preference and the neural processing of ethanol...

Journal: :asia pacific journal of medical toxicology 0
hossein hosseinzadeh pharmaceutical research center, school of pharmacy, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) khalil abnous pharmaceutical research center, school of pharmacy, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) elaheh taghiabadi pharmaceutical research center, school of pharmacy, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) ali reza timcheh hariri pharmaceutical research center, school of pharmacy, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) hamed pourbakhsh pharmaceutical research center, school of pharmacy, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) seyed masoud hosseini pharmaceutical research center, school of pharmacy, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences)

background: in this study, the protective effect of thymoquinone (tq) and nigella sativa seeds oil (nso) was evaluated against oxidative damages induced by ethanol in rats. methods: animals were treated with ethanol 40% daily by gavages once a day for 4 weeks. nso and tq were injected intraperitoneal once a day for 4 weeks. the histopathological examination of liver, kidney, brain and heart was...

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