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Influence of Pesticides on the pH Regulatory Enzyme, Carbonic Anhydrase, From European Seabass Liver and Bovine Erythrocytes

Influence of Pesticides on the pH Regulatory Enzyme, Carbonic Anhydrase, From European Seabass Liver and Bovine Erythrocytes

Ramazan Demirdağ, Emrah Yerlikaya, Ercüment Aksakal, Ömer Irfan Küfrevioğlu, Deniz Ekinci

Environ Toxicol Pharmacol. 2012 Sep;34(2):218-222.

PMID: 22561108

Abstract:

The objective of this study was to assess the inhibitory effects of six commonly used pesticides, cyhalothrin, cypermethrin, dichlorvos, methamidophos, chlorpyrifos and methylparathion, on the pH regulatory enzyme carbonic anhydrase (CA) of Dicentrarchus labrax (European Seabass) liver (dCA) and bovine erythrocytes (bCA). Results of the study showed that the pesticides displayed quite variable inhibition profiles with K(I) values ranging from 0.376 to 26.164μM against dCA, and from 1.174 to 53.281μM against bCA. Methylparathion was the most effective inhibitor for both enzymes. Overall data show that all of the tested pesticides inhibit both dCA and bCA at low concentrations indicating that indiscriminate use of these pesticides might cause disruption of acid base regulation resulting in animal deaths. Our results also point out that susceptibility to these pesticides varies among CAs from different organisms.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP9001030	Carbonic Anhydrase from bovine erythrocytes		9001-03-0	Price

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