PMID- 15363581 OWN - NLM STAT- MEDLINE DCOM- 20041119 LR - 20141120 IS - 0300-483X (Print) IS - 0300-483X (Linking) VI - 203 IP - 1-3 DP - 2004 Oct 15 TI - Genotoxic effects on human spermatozoa among pesticide factory workers exposed to fenvalerate. PG - 49-60 AB - Fenvalerate, a synthetic pyrethroid insecticide, is widely produced and used worldwide. To explore fenvalerate-induced genotoxic effects, particularly numerical chromosome aberration (CA), we firstly examined conventional semen parameters, the progression and motion parameters of the spermatozoa among 12 fenvalerate-exposed workers and 30 donors of the internal and external control groups. Then numerical CA of chromosome X, Y and 18 were investigated by multicolor fluorescence in situ hybridization (FISH). The results showed the significant differences in the percentage of sperm abnormality between fenvalerate-exposed group and the external control group (P = 0.024). In aneuploid parameters, the frequency (mean +/- S.D.) of sex chromosome disomy was 0.742 +/- 0.131% in fenvalerate-exposed group, which was significantly higher than those in the internal (0.563 +/- 0.135%) and external control group (0.386 +/- 0.140%) (P < 0.01), and the frequency of chromosome 18 disomy in fenvalerate-exposed group (0.326 +/- 0.069%) was significantly higher than those in the internal and external control groups (0.195 +/- 0.094% and 0.124 +/- 0.068%), respectively (P < 0.01). We also found the nullisomies of sex chromosomes and chromosome 18 were significantly higher than those in the external control group and two control groups, respectively (P < 0.01). The frequencies of aneuploidy and numerical CA we detected also showed significant differences between exposed group and control groups (P < 0.05 and/or P < 0.01). Moreover, we found the positive correlation not only between nullisomic frequencies of these chromosomes and numerical CA rate (r > 0.70, P < 0.01) but also between disomic frequency of sex chromosomes, aneuploidy rate and sperm abnormality in all donors (r = 0.530 and r = 0.536, P < 0.01). Our findings suggest that fenvalerate or its metabolites induced morphologic abnormality and genotoxic defects of spermatozoa among fenvalerate-exposed workers by causing numerical CA in spermatogenesis as a special and potential genotoxic agent. FAU - Xia, Yankai AU - Xia Y AD - Institute of Toxicology, Nanjing Medical University, 210029, China. FAU - Bian, Qian AU - Bian Q FAU - Xu, Lichun AU - Xu L FAU - Cheng, Senping AU - Cheng S FAU - Song, Lin AU - Song L FAU - Liu, Jiayin AU - Liu J FAU - Wu, Wei AU - Wu W FAU - Wang, Shoulin AU - Wang S FAU - Wang, Xinru AU - Wang X LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Ireland TA - Toxicology JT - Toxicology JID - 0361055 RN - 0 (DNA Probes) RN - 0 (Insecticides) RN - 0 (Nitriles) RN - 0 (Pyrethrins) RN - Z6MXZ39302 (fenvalerate) SB - IM MH - Adult MH - Aneuploidy MH - Chromosome Aberrations/drug effects MH - Chromosomes, Human, Pair 18/drug effects/ultrastructure MH - DNA Probes MH - Humans MH - In Situ Hybridization MH - In Vitro Techniques MH - Insecticides/*toxicity MH - Male MH - Nitriles MH - Occupational Exposure/*adverse effects MH - Pyrethrins/*toxicity MH - Sex Chromosomes/drug effects/ultrastructure MH - Sperm Motility/drug effects MH - Spermatozoa/*drug effects EDAT- 2004/09/15 05:00 MHDA- 2004/12/16 09:00 CRDT- 2004/09/15 05:00 PHST- 2004/04/04 00:00 [received] PHST- 2004/05/21 00:00 [revised] PHST- 2004/05/24 00:00 [accepted] PHST- 2004/09/15 05:00 [pubmed] PHST- 2004/12/16 09:00 [medline] PHST- 2004/09/15 05:00 [entrez] AID - S0300483X04003051 [pii] AID - 10.1016/j.tox.2004.05.018 [doi] PST - ppublish SO - Toxicology. 2004 Oct 15;203(1-3):49-60. doi: 10.1016/j.tox.2004.05.018.