PMID- 16342474 OWN - NLM STAT- MEDLINE DCOM- 20060201 LR - 20170214 IS - 0748-2337 (Print) IS - 0748-2337 (Linking) VI - 21 IP - 9 DP - 2005 Oct TI - Effect of 2,4-dichlorophenoxyacetic acid on the activities of some metabolic enzymes for generating pyridine nucleotide pool of cells from mouse liver. PG - 231-7 AB - 2,4-Dichlorophenoxyacetic acid (2,4-D), which is a plant auxin analogue, is lethal to broad leaved weeds within days at high dosages and is considered as having low toxicity to mammals. Some studies have reported that exposure to this compound may cause damage to organs such as liver. The aim of this study was to investigate the effects of 2,4-D in mouse liver on chromosomes as well as hexokinase (HK), glucose-6-phosphate dehydrogenase (G6PD), 6-phosphogluconate dehydrogenase (6PGD), lactate dehydrogenase (LDH) and malate dehydrogenase (MDH) which are required for the generation of the pyridine nucleotide pool. The experiments were carried out with a 2,4-D group, an ethanol control for 2,4-D, and saline group for ethanol control group on three generations of mice. Only female parents were given 2,4-D during the gestation period, lactation period and for 33 days following the lactation period. In females of the first cross, 2,4-D caused a significant increase in the activity of LDH, and ethanol alone caused a significant increase in the activities of HK and LDH. In the male offspring of the first cross maternal, 2,4-D caused a significant increase in the activity of LDH, and ethanol alone caused a significant decrease in the activity of 6PGD. In the female offspring of the first cross maternal, ethanol caused a significant increase in the activities of G6PD and MDH. In the female offsprings of the third cross maternal, 2,4-D caused a significant increase in the activity of MDH. No gross morphological changes were observed in internal organs, such as liver, kidney and spleen of the affected animals. Also, a chromosomal study from bone marrow cells indicated no anomalies in chromosomal sets and structures. As a result, 2,4-D had an effect on the first cross maternal and their offsprings. The compound did not affect the parameters studied except MDH enzyme activity in the second and third generation of mice. FAU - Yilmaz, H Ramazan AU - Yilmaz HR AD - Suleyman Demirel University, Faculty of Medicine, Department of Medical Biology and Genetics, Isparta, Turkey. hramazany@yahoo.com FAU - Yuksel, Esref AU - Yuksel E LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Toxicol Ind Health JT - Toxicology and industrial health JID - 8602702 RN - 0 (Herbicides) RN - 2577AQ9262 (2,4-Dichlorophenoxyacetic Acid) RN - 53-59-8 (NADP) RN - EC 1.1.- (Alcohol Oxidoreductases) RN - EC 1.1.1.37 (Malate Dehydrogenase) RN - EC 2.7.1.1 (Hexokinase) SB - IM MH - 2,4-Dichlorophenoxyacetic Acid/*toxicity MH - Alcohol Oxidoreductases/drug effects/metabolism MH - Animals MH - Enzyme Activation/drug effects MH - Female MH - Hepatocytes/drug effects/metabolism MH - Herbicides/*toxicity MH - Hexokinase/drug effects/metabolism MH - Lactation/drug effects MH - Liver/*enzymology MH - Malate Dehydrogenase/metabolism MH - Male MH - Maternal Exposure MH - Mice MH - NADP/drug effects/*metabolism MH - Pregnancy EDAT- 2005/12/14 09:00 MHDA- 2006/02/02 09:00 CRDT- 2005/12/14 09:00 PHST- 2005/12/14 09:00 [pubmed] PHST- 2006/02/02 09:00 [medline] PHST- 2005/12/14 09:00 [entrez] AID - 10.1191/0748233705th231oa [doi] PST - ppublish SO - Toxicol Ind Health. 2005 Oct;21(9):231-7. doi: 10.1191/0748233705th231oa.