PMID- 37977273 OWN - NLM STAT- MEDLINE DCOM- 20240105 LR - 20240116 IS - 1096-0953 (Electronic) IS - 0013-9351 (Linking) VI - 241 DP - 2024 Jan 15 TI - Placental concentrations of xenoestrogenic organochlorine pesticides and polychlorinated biphenyls and assessment of their xenoestrogenicity in the PA-MAMI mother-child cohort. PG - 117622 LID - S0013-9351(23)02426-X [pii] LID - 10.1016/j.envres.2023.117622 [doi] AB - BACKGROUND: Organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCB), they have contributed to the exposure of women to persistent organic pollutants (POPs). These compounds can cross the placental barrier and interfere with the hormonal system of newborns. AIM: To determine concentrations of OCPs and PCBs and their xenoestrogenic activity in placentas of women from the PA-MAMI cohort of Panama. METHODS: Thirty-nine placenta samples from women in the Azuero peninsula (Panama) were analyzed. Five OCPs [p-p'-dichlorodiphenyldichloroethylene (p-p'-DDE), beta-hexachlorohexane (beta-HCH), gamma-hexachlorohexane (lindane), hexachlorobenzene (HCB) and mirex] and three PCB congeners (PCB-138, PCB-153 and PCB-180) were quantified in placenta extracts. The xenoestrogenic activity of extracts was assessed with the E-Screen bioassay to estimate the total effective xenoestrogen burden (TEXB). RESULTS: All placental samples were positive for at least three POP residues and >70% for at least six. The frequencies of quantified OCPs ranged from 100% for p,p'-DDE and HCB to 30.8% for beta-HCH. The highest median concentration was for lindane (380.0 pg/g placenta), followed by p,p'-DDE (280.0 pg/g placenta), and HCB (90.0 pg/g placenta). Exposure to p,p'-DDE was associated with greater meat consumption, suggesting that animal fat is a major source of exposure to DDT metabolites. The frequency of detected PCBs ranged between 70 and 90%; the highest median concentration was for PCB 138 (17.0 pg/g placenta), followed by PCB 153 (16.0 pg/g placenta). All placentas were positive in the estrogenicity bioassay with a median TEXB-alpha of 0.91 pM Eeq/g of placenta. Exposure to lindane was positively associated with the xenoestrogenicity of TEXB- alpha, whereas this association was negative in the case of exposure to PCB 153. CONCLUSIONS: To our best knowledge, this study contributes the first evidence on the presence of POPs and xenoestrogenic burden in placentas from Latin-American women. Given concerns about the consequences of prenatal exposure to these compounds on children's health, preventive measures are highly recommended to eliminate or minimize the risk of OCP exposure during pregnancy. CI - Copyright (c) 2023 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Iribarne-Duran, L M AU - Iribarne-Duran LM AD - Instituto de Investigacion Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain. Electronic address: luzmaria.irdu@gmail.com. FAU - Castillero-Rosales, I AU - Castillero-Rosales I AD - Departamento de Quimica Analitica, FCNET, Universidad de Panama, Panama. FAU - Peinado, F M AU - Peinado FM AD - Instituto de Investigacion Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain. FAU - Artacho-Cordon, F AU - Artacho-Cordon F AD - Instituto de Investigacion Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain; CIBER de Epidemiologia y Salud Publica (CIBERESP), E- 28029, Madrid, Spain; Departamento de Radiologia y Medicina Fisica, Universidad de Granada, E- 18016, Granada, Spain. FAU - Molina-Molina, J M AU - Molina-Molina JM AD - Instituto de Investigacion Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain. FAU - Medianero, E AU - Medianero E AD - Departamento de Ciencias Ambientales, Facultad de Ciencias Naturales, Exactas y Tecnologia, Universidad de Panama, Panama; Secretaria Nacional de Ciencia, Tecnologia e Innovacion (SENACYT), Panama. FAU - Nicolas-Delgado, S I AU - Nicolas-Delgado SI AD - Departamento de Ginecologia y Obstetricia, Hospital Joaquin Pablo Franco Sayas, Ministerio de Salud, Los Santos, Panama. FAU - Sanchez-Pinzon, L AU - Sanchez-Pinzon L AD - Clinica de Cesacion de Tabaco y Clinica del Empleado Local, Region de Salud de Azuero, Ministerio de Salud, Los Santos, Panama. FAU - Nunez-Samudio, V AU - Nunez-Samudio V AD - Departamento de Salud Publica, Seccion de Epidemiologia, Region de Salud de Herrera, Ministerio de Salud, Panama; Instituto de Ciencias Medicas, Las Tablas, Los Santos, Panama. FAU - Vela-Soria, F AU - Vela-Soria F AD - Instituto de Investigacion Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain. FAU - Olea, N AU - Olea N AD - Instituto de Investigacion Biosanitaria de Granada (ibs. GRANADA), E-18012, Granada, Spain; CIBER de Epidemiologia y Salud Publica (CIBERESP), E- 28029, Madrid, Spain; Departamento de Radiologia y Medicina Fisica, Universidad de Granada, E- 18016, Granada, Spain; Unidad de Medicina Nuclear, Hospital Universitario San Cecilio, E- 18016, Granada, Spain. FAU - Alvarado-Gonzalez, N E AU - Alvarado-Gonzalez NE AD - Instituto Especializado de Analisis (IEA), Vicerrectoria de Investigacion y Postgrado, Universidad de Panama, Panama. LA - eng PT - Journal Article DEP - 20231115 PL - Netherlands TA - Environ Res JT - Environmental research JID - 0147621 RN - ZRU0C9E32O (2,4,5,2',4',5'-hexachlorobiphenyl) RN - DFC2HB4I0K (Polychlorinated Biphenyls) RN - YM80ODM9PD (beta-hexachlorocyclohexane) RN - 59NEE7PCAB (Hexachlorocyclohexane) RN - 4M7FS82U08 (Dichlorodiphenyl Dichloroethylene) RN - 4Z87H0LKUY (Hexachlorobenzene) RN - CIW5S16655 (DDT) RN - 0 (Hydrocarbons, Chlorinated) RN - 0 (Pesticides) RN - 0 (Environmental Pollutants) SB - IM MH - Infant, Newborn MH - Animals MH - Female MH - Humans MH - Pregnancy MH - *Polychlorinated Biphenyls/analysis MH - Hexachlorocyclohexane/analysis/metabolism MH - Dichlorodiphenyl Dichloroethylene MH - Hexachlorobenzene/analysis MH - DDT/analysis MH - Placenta/chemistry MH - *Hydrocarbons, Chlorinated/analysis MH - *Pesticides/analysis MH - *Environmental Pollutants/analysis MH - Mother-Child Relations OTO - NOTNLM OT - Organochlorines OT - TEXB OT - Women OT - Xenoestrogens OT - placenta COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/11/18 11:41 MHDA- 2024/01/05 06:43 CRDT- 2023/11/17 19:35 PHST- 2023/04/26 00:00 [received] PHST- 2023/11/05 00:00 [revised] PHST- 2023/11/07 00:00 [accepted] PHST- 2024/01/05 06:43 [medline] PHST- 2023/11/18 11:41 [pubmed] PHST- 2023/11/17 19:35 [entrez] AID - S0013-9351(23)02426-X [pii] AID - 10.1016/j.envres.2023.117622 [doi] PST - ppublish SO - Environ Res. 2024 Jan 15;241:117622. doi: 10.1016/j.envres.2023.117622. Epub 2023 Nov 15.