PMID- 24022917 OWN - NLM STAT- MEDLINE DCOM- 20140604 LR - 20191210 IS - 1520-6300 (Electronic) IS - 1042-0533 (Linking) VI - 25 IP - 6 DP - 2013 Nov-Dec TI - Adipose tissue: another target organ for lead accumulation? A study on Sardinian children (Italy). PG - 789-94 LID - 10.1002/ajhb.22448 [doi] AB - OBJECTIVES: This study analyzes the relationship between lead levels and adipose tissue in Sardinian children. As an environmental pollutant, lead occurs in two different chemical forms: inorganic and organic lead; organic lead is present in the environment mainly as lead-alkyls (tetramethyl and tetraethyl lead). The lead-alkyls are characterized by their liposolubility; because of this characteristic, the behavior of organic Pb in the organism is similar to that of persistent organic pollutants (POPs). In fact, the high liposolubility of POPs, synthetic chemical substances highly resistant to biodegradation in both the environment and the human body, gives them a preferential tendency to accumulate in adipose tissue. METHODS: The study sample consisted of 759 children between 11 and 15 years resident in various municipalities of Sardinia. Hair lead levels (PbH) were used as the biomarker of exposure, while several anthropometric indexes were adopted to evaluate the adipose tissue: weight, body mass index, waist circumference, waist to hip circumference ratio, and sum of skinfolds (Sigmaskf). RESULTS: The results of the multivariate ridge regression analysis, controlling for sex and age, show a significant positive relationship between logPbH and logSigmaskf but not the other adiposity indicators. CONCLUSIONS: This results suggests that organic lead tends to accumulate in adipose tissue, although it would be appropriate to measure lead levels in the adipose tissue itself in order to verify the results. Hence this tissue could be considered a possible new biological matrix for the evaluation of environmental lead exposure. CI - Copyright (c) 2013 Wiley Periodicals, Inc. FAU - Vallascas, Elisabetta AU - Vallascas E AD - Department of Environmental and Life Sciences, Anthropological Sciences Research Unit, Cittadella Universitaria, 09042 Monserrato, University of Cagliari, Sardinia, Italy. FAU - De Micco, Alessandro AU - De Micco A FAU - Deiana, Fabrizio AU - Deiana F FAU - Banni, Sebastiano AU - Banni S FAU - Sanna, Emanuele AU - Sanna E LA - eng PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130910 PL - United States TA - Am J Hum Biol JT - American journal of human biology : the official journal of the Human Biology Council JID - 8915029 RN - 0 (Biomarkers) RN - 0 (Environmental Pollutants) RN - 2P299V784P (Lead) SB - IM MH - *Adiposity MH - Adolescent MH - Anthropometry MH - Biomarkers/metabolism MH - Child MH - Cross-Sectional Studies MH - *Environmental Exposure MH - Environmental Monitoring/*methods MH - Environmental Pollutants/*metabolism MH - Female MH - Hair/*metabolism MH - Humans MH - Italy MH - Lead/*metabolism MH - Male MH - Risk Factors EDAT- 2013/09/12 06:00 MHDA- 2014/06/05 06:00 CRDT- 2013/09/12 06:00 PHST- 2012/12/12 00:00 [received] PHST- 2013/08/08 00:00 [revised] PHST- 2013/08/08 00:00 [accepted] PHST- 2013/09/12 06:00 [entrez] PHST- 2013/09/12 06:00 [pubmed] PHST- 2014/06/05 06:00 [medline] AID - 10.1002/ajhb.22448 [doi] PST - ppublish SO - Am J Hum Biol. 2013 Nov-Dec;25(6):789-94. doi: 10.1002/ajhb.22448. Epub 2013 Sep 10.