In animals, thiamine deficiency leads to specific brain lesions, generally attributed to decreased levels of thiamine diphosphate, an essential cofactor in brain energy metabolism. However, another far less abundant derivative, thiamine triphosphate (ThTP), may also have a neuronal function. Here, we show that in the rat brain, ThTP is essentially present and synthesized in mitochondria. In mit...

The mitochondrial mass of rat brain and liver remained unchanged on aging in young adults, old adults, and senescent animals (28, 60, and 92 wk of age); the values were 15-17 and 29-31 mg protein/g for brain and liver, respectively. The whole aging process was associated with an increased content of the oxidation products, thiobarbituric acid-reactive substances and protein carbonyls, by 61-69%...

Schizophrenia is a chronic and often debilitating illness which affects about 1% of the world population. Some reagents have been used to simulate schizophrenic disorders in laboratory animals, such as amphetamine and ketamine. Previous studies have suggested that reactive oxygen species (ROS) production, reduced levels of ATP, mitochondrial dysfunction and apoptosis are involved in the pathoph...

Introduction: Alzheimer’s disease is a progressive neurodegenerative disorder, characterized by impairment of memory and changes in behavior and personality. Recent evidence suggests that mitochondrial channels play important roles in memory disorders. Accordingly, the biophysical properties of a single potassium channel were investigated in the brain mitochondrial inner membrane of rat with...

aim : the aim of this study was to evaluate and compare three available methods for mitochondrial isolation from a human cell line to predict the best method for each probable application.   background : organelle isolation is gaining importance in experimental laboratory settings. mitochondrial dysfunction may affect tumorgenesis process. there are some evidences that transplantation of health...

1. Rat brain-cortex mitochondria were incubated in media containing 1, 5 or 100mm-K(+) in the presence of ADP, uncoupler (FCCP, carbonyl cyanide p-trifluoro-methoxyphenylhydrazone) or valinomycin while metabolizing pyruvate and malate, or acetylcarnitine and malate or glutamate and malate as substrates. Both the uptake of oxygen and disappearance of substrate were measured under these condition...

Vuia1 reported two twin brothers diagnosed with congenital spongy degeneration of the brain featured by accumulation of lamellar bodies within the mitochondria, and free in the cellular cytoplasm with tendency to form inclusions of the multilamellar or finger-print type. Watanabe2 described in a 51/2-year-old boy with congenital myopathy associated with communicating hydrocephalus myofibrillar ...

The ADP-ribosylation factor-like 2 (ARL2) GTPase and its binding partner binder of ARL2 (BART) are ubiquitously expressed in rodent and human tissues and are most abundant in brain. Both ARL2 and BART are predominantly cytosolic, but a pool of each was found associated with mitochondria in a protease-resistant form. ARL2 was found to lack covalent N-myristoylation, present on all other members ...

Purpose: To study the specific content (per 1 g of tissue) reduced glutathione and activity enzyme antioxidant protection peroxidase conjugated with it in various structural functional parts rat brain when exposed to ionizing radiation at a dose 6 Gy. Material methods: The studies were carried out on white outbred rats subjected single total γ-radiation an average lethal determined irradiated a...