کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2586122 1130892 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Acute toxicity of some synthetic cyanogens in rats and their response to oral treatment with alpha-ketoglutarate
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Acute toxicity of some synthetic cyanogens in rats and their response to oral treatment with alpha-ketoglutarate
چکیده انگلیسی

Oral toxicity of several cyanogens and their reversal by alpha-ketoglutarate (A-KG; oral) were studied in rats. LD50 of acetonitrile (ATCN), acrylonitrile (ACN), malononitrile (MCN), propionitrile (PCN), sodium nitroprusside (SNP), and succinonitrile (SCN) was 4891, 143.3, 69.8, 122.9, 69.8 and 488.7 mg/kg, respectively while the protection index of A-KG (ratio of LD50 of cyanogens in the presence or absence of A-KG) was >2.0 against MCN (7.6), PCN (2.7) and SNP (3.6) only. We further studied the efficacy of A-KG against acute toxicity of these three cyanogens (0.75 LD50) on various hematological and biochemical variables in blood and soft tissues 24 h post-exposure. We observed increase in white blood cells (SNP), plasma alanine (PCN, SNP) and aspartate (PCN) aminotransferase, lactate dehydrogenase (MCN, PCN, SNP), Na+ (MCN, PCN) and cyanide (PCN), and decrease in K+ (MCN, SNP) accompanied by an increase in brain, kidney and liver malondialdehyde (PCN), decrease in brain glutathione peroxidase, glutathione reductase (PCN, SNP), reduced glutathione (MCN, PCN, SNP) and cytochrome oxidase (PCN), liver rhodanese (PCN, SNP), and kidney cytochrome oxidase (PCN). The study indicates that (i) PCN was most toxic among all the cyanogens and (ii) beside cyanide, A-KG could be considered as an effective antidote for cyanogens.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food and Chemical Toxicology - Volume 47, Issue 9, September 2009, Pages 2314–2320
نویسندگان
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