Name: Paraoxonase (Pon1) in Health and Disease: Basic and Clinical Aspects (en Inglés)
Price: 500.60 PEN
Availability: InStock
Author: Costa, Lucio G. ; Furlong, Clement E.
ISBN: 9781461353584

portada Paraoxonase (Pon1) in Health and Disease: Basic and Clinical Aspects (en Inglés)

Formato

Libro Físico

Editorial

Springer

Autor

Costa, Lucio G. ; Furlong, Clement E.

Idioma

Inglés

N° páginas

216

Encuadernación

Tapa Blanda

Dimensiones

23.4 x 15.6 x 1.3 cm

Peso

0.34 kg.

ISBN13

9781461353584

Categorías

Ciencias básicas de la medicina preclínica
Enfermedades cardiovasculares
Farmacología

Paraoxonase (Pon1) in Health and Disease: Basic and Clinical Aspects (en Inglés)

Costa, Lucio G. ; Furlong, Clement E. (Autor) · Springer · Tapa Blanda

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Origen: Estados Unidos (Costos de importación incluídos en el precio)

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Reseña del libro "Paraoxonase (Pon1) in Health and Disease: Basic and Clinical Aspects (en Inglés)"

The paraoxonase or PON family of genes resides on human chromosome 7q2t-22 in the order PONt, PON3 and PON2. PONt was one of the early genes identified as an environmentally relevant gene, in that it is important in determining an individual's sensitivity or resistance to exposure from specific organophosphorus (OP) insecticides. Paraoxonase (PONt) is an A- esterase (i. e., not inhibited by OP compounds) initially identified for its ability to catalytically hydrolyze paraoxon, the toxic metabolite (oxon form) of the insecticide parathion. Evidence accumulated in the past several years has established that this enzyme, which is present at variable levels in liver and serum of different individuals, is an important determinant of sensitivity to toxicity of specific organophosphorus compounds including chlorpyrifos oxon and diazoxon. Recent experiments have pointed out that it is the catalytic efficiency of PONt together with the levels of PONt that are important in determining the degree of resistance. Surprisingly, even though PONt has a higher catalytic efficiency than PONtQ)92 for paraoxon RJ92 hydrolysis, it does not provide significant in vivo protection against an exposure to paraoxon. Interest in this enzyme has also emerged from the finding that it displays genetic polymorphisms in most populations, with a significant number of the individuals in a given population canying a PONt gene that puts them at risk for a specific OP exposure.