نتایج جستجو برای: cerebral cortex

تعداد نتایج: 272623  

Abedin Vakili, Mahdi Zahedikhorasani, Toctam Sadough,

Introduction: Several studies have indicated that late treatment of aminoguanidine (AG) reduces cerebral ischemic injuries in animal models. However, the effects of early treatment of AG on cerebral ischemic damage are not well understood. This study was designed to evaluate effect of early treatment of AG on cortex and striatum injuries as well as neurological dysfunctions in transient mode...

Farzad Rajaei, Farhad Mashayekhi, Mojtaba Eslami , Zivar Salehi ,

Background: Leukemia inhibitory factor (LIF) is a neurortophic cytokine which plays an important role in the neural cell survival. Expression of LIF and its receptor, LIFR, in different brain regions has been demonstrated. Based on evidences LIF plays an important role in the modulation of neurogenesis and glial responses to injury. Up-regulation of LIF after central nervous system (CNS) damage...

Gholam Abbas Dehghani, Hamdollah Panahpour,

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: :physiology and pharmacology 0
abedin vakili laboratory of cerebrovascular research, physiological research center, semnan university of medical sciences, semnan, iran. toctam sadough mahdi zahedikhorasani

introduction: several studies have indicated that late treatment of aminoguanidine (ag) reduces cerebral ischemic injuries in animal models. however, the effects of early treatment of ag on cerebral ischemic damage are not well understood. this study was designed to evaluate effect of early treatment of ag on cortex and striatum injuries as well as neurological dysfunctions in transient model o...

ALEXANDER S. KANAYAN, KARINE V. MELKONIAN, VILEN P. HAKOPIAN,

In this paper it has been shown that deterioration of the brain cortex capillary system and negative dynamics of cerebral tissue morphology occur under conditions of hypo kinesia. Simultaneously, gamma-aminobutyric acid (GABA) and piracetam have been shown to favor the development of vasodilation and prevent further worsening of the cerebral blood supply. During the experiment, it was also ...

Farhad Mashayekhi , Mahnaz Azarnia , Mohammad-Reza Semnani , Zivar Salehi ,

Background: The cuprizone multiple sclerosis (MS) animal model is characteristic for toxic demyelination and represents a reversible demyelination and remyelination system. It has been shown that green tea epigallocatechin-3-gallate (EGCG) might be effective in improving the symptoms and pathological conditions associated with autoimmune inflammatory diseases in several animal models. Object...

مشایخی, فرهاد, اسلامی , مجتبی,

Background and purpose: Myelin-producing oligodendrocytes play a key role in supporting normal neuronal function of the mammalian central nervous system (CNS). Formation of myelinating oligodendrocytes from their precursors requires activation and coordination of a set of stage-specific transcriptional regulators that are important for the biosynthesis of myelin components. Olig2 plays an impor...

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...

Azadeh Mesripour , Bahram Haghighi, Manouchehr Mesripour,

The variations of glucose 6-phosphate dehydrogenase (G6PD) activity in different brain regions of normal, hypo- and hyperthyroid rats were investigated. Hypo- and hyperthyrodism were experimentaly induced by administration of methimazol and liothyronine, respectively. In normal rats, midbrain had the minimum (70 mU/mg) and cerebral cortex the maximum (349 mU/mg) G6PD activity. Hyperthyrodism in...

Journal: :acta medica iranica 0
p. pasbakhsh m. mehdizadeh n. omidi

alzheimer’s disease (ad) is a uniquely human disorder. although the pathogenesis of ad is not fully understood, growing evidence indicates that the deposition of beta-amyloid (aβ) and the local reactions of various cell types to this protein play major roles in the development of the disease. in the present study transgenic mice expressing mutant amyloid precursor protein (app) has been used. t...

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