Organophosphates, Serine Esterase Inhibition, and Modeling of Organophosphate Toxicity
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چکیده
منابع مشابه
Organophosphates and monocyte esterase deficiency.
AIMS To examine the possibility that monocyte esterase deficiency (MED) could be caused by exposure to organophosphates. METHODS Pseudocholinesterase, paraoxonase and arylesterase activities were measured in the serum and acetylcholinesterase activity was measured in the red cells of a group of monocyte esterase deficient subjects and compared with the enzyme activities of a control group of ...
متن کاملInhibition of monocyte esterase activity by organophosphate insecticides.
Organophosphate insecticides, such as Vapona, Naled, and Rabon, are highly potent inhibitors of an enzyme found in human monocytes. The enzyme, a specific monocyte esterase, could be inhibited by Vapona in blood samples via airborne contamination at levels easily achieved from commercial slow-release insecticide strips. Fifty percent inhibition (I50)--as measured on the Hemalog D (Technicon Cor...
متن کاملPerforin and Serine Esterase
Several products of CTL and NK cells, including a pore-forming protein (PFP;t perforin or cytolysin) (1-4) and several serine esterases (SE) (5-12), have been cloned and sequenced . These proteins are localized to cytoplasmic granules and represent the known structural components ofthe pore-formation and granule exocytosis models for cell-mediated killing (13-17). Granule mediators are expresse...
متن کاملSerum Albumin Binding and Esterase Activity: Mechanistic Interactions with Organophosphates.
The albumin molecule, in contrast to many other plasma proteins, is not covered with a carbohydrate moiety and can bind and transport various molecules of endogenous and exogenous origin. The enzymatic activity of albumin, the existence of which many scientists perceive skeptically, is much less studied. In toxicology, understanding the mechanistic interactions of organophosphates with albumin ...
متن کاملOrganophosphate toxicity and occupational exposure.
The ubiquitous organophosphates present a continuing health hazard in agriculture, public health eradication programmes and as chemical warfare agents. Despite significant progress in understanding the potential mechanisms of toxicity far beyond the commonly accepted mechanism of cholinesterase inhibition in intentional exposures, the precise health effects following occupational exposures are ...
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ژورنال
عنوان ژورنال: Toxicological Sciences
سال: 2004
ISSN: 1096-0929
DOI: 10.1093/toxsci/kfh060