PMID- 14729365 OWN - NLM STAT- MEDLINE DCOM- 20040304 LR - 20190702 IS - 0027-5107 (Print) IS - 0027-5107 (Linking) VI - 557 IP - 2 DP - 2004 Feb 14 TI - Cytogenetic biomonitoring of a floriculturist population in Italy: micronucleus analysis by fluorescence in situ hybridization (FISH) with an all-chromosome centromeric probe. PG - 109-17 AB - Flower production in greenhouses associated with a heavy use of pesticides is very wide-spread in the western part of the Ligurian region (Italy). The formation of micronuclei in peripheral blood lymphocytes is a valuable cytogenetic biomarker in human populations occupationally exposed to genotoxic compounds. In the present study we investigated the micronucleus frequency in peripheral blood lymphocytes of 52 floriculturists and 24 control subjects by use of the cytokinesis-block methodology associated with fluorescence in situ hybridization with a pan-centromeric probe that allowed to distinguish centromere-positive (C+) and centromere-negative (C-) micronuclei. The comparison between floriculturists and controls did not reveal any statistically significant difference in micronucleus frequency, although an increase was observed with increasing pesticide use, number of genotoxic pesticides used and duration of exposure. An increase in C+ as well as in C- micronuclei and in the percentage of C+ micronuclei with respect to the total number of micronuclei was detected in floriculturists, suggesting a higher contribution of C+ micronuclei in the total number scored. The percentage C+ micronuclei was not related to the duration of exposure or to the number of genotoxic pesticides used, but a higher percentage (66.52% versus 63.78%) was observed in a subgroup of subjects using benzimidazolic compounds, compared with the floriculturist population exposed to a complex pesticide mixture not including benzimidazolics. These results suggest a potential human hazard associated with the exposure to this class of aneuploidy-inducing carcinogens. FAU - Bolognesi, Claudia AU - Bolognesi C AD - Environmental Carcinogenesis Unit, National Cancer Research Institute, Largo R. Benzi 10, 16132 Genoa, Italy. claudia.bolognesi@istge.it FAU - Landini, Eleonora AU - Landini E FAU - Perrone, Emanuela AU - Perrone E FAU - Roggieri, Paola AU - Roggieri P LA - eng PT - Journal Article PL - Netherlands TA - Mutat Res JT - Mutation research JID - 0400763 RN - 0 (Pesticides) SB - IM MH - Adult MH - Aged MH - Centromere/*genetics MH - *Chromosome Aberrations MH - Environmental Monitoring/*methods MH - Female MH - Flowers MH - Humans MH - In Situ Hybridization, Fluorescence/*methods MH - Male MH - *Micronucleus Tests MH - Middle Aged MH - *Occupational Exposure MH - Pesticides/*adverse effects EDAT- 2004/01/20 05:00 MHDA- 2004/03/05 05:00 CRDT- 2004/01/20 05:00 PHST- 2004/01/20 05:00 [pubmed] PHST- 2004/03/05 05:00 [medline] PHST- 2004/01/20 05:00 [entrez] AID - S1383571803002869 [pii] AID - 10.1016/j.mrgentox.2003.09.013 [doi] PST - ppublish SO - Mutat Res. 2004 Feb 14;557(2):109-17. doi: 10.1016/j.mrgentox.2003.09.013.