multiple sclerosis (ms) is a neurodegenerative and autoimmune disease that it’s molecular etiology and factors involving in its progression remains unknown. in this study for evaluation effect of mercuric on progression of ms we investigated the additive effect of mercuric sulfide on the brain mitochondrial dysfunction in experimental autoimmune encephalomyelitis (eae) model of ms in c57bl/6 mi...

cigarette smoking is one of the main risk factors for premature human death associated to a variety of respiratory and vascular diseases, and cancer due to containing hundreds of toxicants. rat mitochondria were obtained by differential ultracentrifugation and incubated with different concentrations (1, 10 and 100%) of standardized cigarette smoke extract (cse). our results showed that cigarett...

objective: pompe disease is a rare neuromuscular genetic disorder and is classified into two forms of early and late-onset. over the past two decades, mitochondrial abnormalities have been recognized as an important contributor to an array of neuromuscular diseases. we therefore aimed to compare mitochondrial copy number and mitochondrial displacement-loop sequence variation in infantile and ad...

mitochondrial neurogastrointestinal encephalo-myopathy (mngie) is a rare autosomal recessive disease caused by thymidine phosphorylase (tp) gene mutation. here we report a patient with mngie in whom sensorimotor polyneuropathy was the first presenting symptom and had a fluctuating course. this 26-year-old female patient developed acute-onset demyelinating polyneuropathy from the age of 6 with t...

the autism spectrum disorders (asd) are amongst the most heritable complex disorders. although there have been many efforts to locate the genes associated with asd risk, many has been remained to be disclosed about the genetics of asd. scrutiny's have only disclosed a small number of de novo and inherited variants significantly associated with susceptibility to asd. these only comprise a s...

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Arsenic exposure mainly through food and water has been shown to be associated with increased incidence of numerous cancers and non-cancer harmful health. It is also used in cancer chemotherapy and treatment of several cancer types due to its apoptogenic effects in the various cancer and normal cell lines. We have already reported that liver is the storage site and important target organ in As ...

Based on the similarity of prokaryotic DNA to that of mitochondrial DNA, a rapid and efficient method for DNA purification from mitochondrial extracts obtained from different sources, was carried out based on the modification method described by Marmur (1983) which resulted in a high degree of purity (A260/A280=2). In addition we have applied the same technique for the first time to purify...

babies with mitochondrial encephalomyopathies had higher ferritin levels than controls. although plasma iron levels were simi lar in both groups, babies with mitochondrial encephalomyopathies had lower transferrin levels. thiobarbituric acid reactive substances in plasma of babies with mitochondrial encephalomyopathies were higher thun in controls suggesting increased lipid oxidation. we studie...

mitochondria are unique organelles with major role in cellular function, not only as a major site of atp production, but also by regulating energy expenditure, apoptosis signaling, and production of reactive oxygen species. they play a central role in determining the point-of-no-return for the apoptotic process. there is accumulating evidence supporting a direct link between mitochondria, oxida...