منابع مشابه
Arsenic Toxicity: The Effects on Plant Metabolism
The two forms of inorganic arsenic, arsenate (AsV) and arsenite (AsIII), are easily taken up by the cells of the plant root. Once in the cell, AsV can be readily converted to AsIII, the more toxic of the two forms. AsV and AsIII both disrupt plant metabolism, but through distinct mechanisms. AsV is a chemical analog of phosphate that can disrupt at least some phosphate-dependent aspects of meta...
متن کاملMetabolism and toxicity of arsenic: A human carcinogen
Inorganic arsenic is considered the most potential human carcinogen, and humans are exposed to it from soil, water, air and food. In the process of arsenic metabolism, inorganic arsenic is methylated to monomethylarsonic acid and finally to dimethylarsinic acid, followed by excretion through urine. Thus, arsenic exposure may cause DNA hypomethylation due to continuous methyl depletion, facilita...
متن کاملMetabolism, toxicity and anticancer activities of arsenic compounds
A variety of studies indicated that inorganic arsenic and its methylated metabolites have paradoxical effects, namely, carcinogenic and anticancer effects. Epidemiological studies have shown that long term exposure to arsenic can increase the risk of cancers of lung, skin or bladder in man, which is probably associated with the arsenic metabolism. In fact, the enzymatic conversion of inorganic ...
متن کاملrole of folic acid on symptoms of chronic arsenic toxicity
background: chronic arsenic toxicity (arsenicosis) due to drinking of arsenic contaminated ground water is a global problem. however, its treatment is unsatisfactory. methylation of arsenic facilitates its urinary excretion. persons with relatively lower proportion of urinary dimethyl arsenic acid (dma) are found to have at greater risk of developing symptoms of arsenicosis including its compli...
متن کاملrole of cultural iran in promotion of multilaieralism in central asia and caucasus
cultural iran is a scope that is more extended than the political territories of iran as a political unit. this concept means that cultural geography(mehdi moghanlo-1383-1) of iran is greater than its political geography which, according to history, has a long history extending west-east from kandahar to the euphrates and north-south from the persian gulf to the caucasus including transoxiana a...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pharmacology & Toxicology
سال: 2008
ISSN: 0901-9928
DOI: 10.1111/j.1600-0773.2001.890101.x