Human serum paraoxonase (PON1) activity in acute organophosphorous insecticide poisoning
Küçük Resim Yok
Tarih
2003
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ireland Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Human serum paraoxonase (PON1) and perhaps other mammalian paraoxonases catalyzes the hydrolysis of certain organophosphorus (OP) insecticides and nerve gases and so may alter significantly an individual's susceptibility to the toxicity of these chemicals. Serum PON1 exhibits a substrate dependent polymorphism and this polymorphism shows great interethnic variability. This study focused on the investigation of PON1, arylesterase and cholinesterase activities in 28 acute OP insecticide poisoning cases. Insecticide analysis were performed by GC-NPD and activities of enzymes were measured by using spectrophotometer. The activity levels for salt stimulated PON1, basal PON1 and arylesterase were found as 78.83 (35.39-186.13), 39.97 (2.49-80.43) mumol/min/l and 126.26 (36.34-288.24) mmol/min/l respectively. On the other hand the activity levels for butyrylcholinesterase (BTC) and acetylcholinesterase (AchE) were found as 797.23 (106.3-3823) U/I and 4.65 (0.21-30.29) U/ml. There was a correlation between percent stimulation of PON1 and BTC activities (r = 0.446, P < 0.05), but this correlation was lower than in cases who exposed to OP insecticides chronically. As a conclusion, in chronic and acute OP exposure, both PON1 level and phenotype must be taken into consideration. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved.
Açıklama
40th Annual Meeting of the International-Association-of-Forensic-Toxicologists -- AUG 26-30, 2002 -- PARIS, FRANCE
Anahtar Kelimeler
organophosphates, poisoning, PON1
Kaynak
Forensic Science International
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
133
Sayı
01.Feb
