Suchergebnisse

This research would not have been achieved without the selfless collaboration of the donors who took part in the study. The authors gratefully acknowledge editorial assistance from Richard Davies and the support of the "UNETE research unit" of the Centro de Investigacion Biomedica (University of Granada). This research was funded in part by grants from the European Union Commission (The European Human Biomonitoring Initiative H2020-EJP-HBM4EU), Biomedical Research Networking Center-CIBER de Epidemiologia y Salud Publica (CIBERESP), and the Carlos III Institute of Health (ISCIII) (PI16/01820, PI16/01812, PI16/01858, PI17/01743, and PI17/01526). The authors are also grateful to the ISCIII and the "Fondo Europeo de Desarrollo Regional" (ISCIII/FEDER) for the predoctoral research contract granted to L.M. Iribarne-Duran (FI17/00316), the Sara Borrell postdoctoral research contract granted to F. Vela-Soria (grant no. CD17/00212), the Jose Maria Segovia de Arana contract granted to N. Olea (INT18/00060) and the Miguel Servet Type I Program granted to C. Freire (grant no. MS16/00085). This paper is part of the PhD thesis developed by Laura Serrano in the context of the "Clinical Medicine and Public Health Program" of the University of Granada. The funders had no role in the study design, data collection or analysis, decision to publish, or preparation of the manuscript. Funding for open access charge: University of Granada/CBUA. ; Background: Breast milk is considered to offer the best nutrition to infants; however, it may be a source of exposure to environmental chemicals such as perfluoroalkyl compounds (PFAS) for breastfeeding infants. PFAS are a complex group of synthetic chemicals whose high stability has led to their ubiquitous contamination of the environment. Objective: To assess the concentrations and profiles of PFAS in breast milk from donors to a human milk bank and explore factors potentially related to this exposure. Methods: Pooled milk samples were collected from 82 donors to the Human Milk Bank of the Virgen de las Nieves University Hospital (Granada, Spain). Ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS) was applied to determine milk concentrations of 11 PFAS, including long-chain and short-chain compounds. A questionnaire was used to collect information on donors' socio-demographic characteristics, lifestyle, diet, and use of personal care products (PCPs). Factors related to individual and total PFAS concentrations were evaluated by multivariate regression analysis. Results: PFAS were detected in 24–100% of breast milk samples. PFHpA was detected in 100% of samples, followed by PFOA (84%), PFNA (71%), PFHxA (66%), and PFTrDA (62%). Perfluorooctane sulfonate (PFOS) was detected in only 34% of donors. The median concentrations ranged from <0.66 ng/dL (perfluorohexane sulfonic acid [PFHxS]) to 19.39 ng/L (PFHpA). The median of the sum of PFAS concentrations was 87.67 ng/L and was higher for short-chain than long-chain PFAS. Factors most frequently associated with increased PFAS concentrations included intake of creatin animal food items and use of PCPs such as skin care and makeup products. Conclusions: Several PFAS, including short-chain compounds, are detected in pooled donor milk samples. Breast milk may be an important pathway for the PFAS exposure of breastfed infants, including preterm infants in NICUs. Despite the reduced sample size, these data suggest that various lifestyle factors influence PFAS concentrations, highlighting the use of PCPs. ; "UNETE research unit" of the Centro de Investigacion Biomedica (University of Granada) ; European Union Commission (The European Human Biomonitoring Initiative H2020-EJP-HBM4EU) ; Biomedical Research Networking Center-CIBER de Epidemiologia y Salud Publica (CIBERESP) ; Instituto de Salud Carlos III PI16/01820 PI16/01812 PI16/01858 PI17/01743 PI17/01526 FI17/00316 CD17/00212 INT18/00060 MS16/00085 ; "Fondo Europeo de Desarrollo Regional" (ISCIII/FEDER) FI17/00316 CD17/00212 INT18/00060 MS16/00085 ; University of Granada/CBUA

Newborns in neonatal intensive care units (NICUs) are in contact with a variety of medical products whose production might include synthetic chemicals with hormonal activity. BPA was found in three-fifths and PBs in four-fifths of tested NICU items, and ∼25% and ∼10% of extracts evidenced estrogenic and anti-androgenic activity, respectively. The highest BPA content was found in the three-way stopcock (>7.000 ng/g), followed by patterned transparent film dressing, gastro-duodenal feeding tubes, sterile gloves, single-lumen umbilical catheters, and intravenous (IV) infusion extension sets (concentrations ranged from 100 to 700 ng/g BPA). A total PB concentration (∑PBs) >100 ng/g was observed in several items, including light therapy protection glasses, patterned transparent film dressing, winged IV catheters, IV infusion extension sets, and textile tape. The highest estrogenic activity [>450 pM estradiol equivalent (E2eq)] was found in small dummy nipples, three-way stopcocks, and patterned transparent film dressing and the highest anti-androgenic activity [>5 mM procymidone equivalent units per gram (Proceq/g)] in small dummy nipples and three-way stopcocks. According to these findings, neonates might be exposed to multiple sources of BPA and PBs in NICUs via inhalation, dermal, oral, and IV/parenteral routes. There is a need to address the future health implications for these extremely vulnerable patients and to adopt precautionary preventive measures as a matter of urgency. ; This research was funded in part by grants from the European Union Commission (The European Human Biomonitoring Initiative H2020-EJP-HBM4EU), the Spanish Ministry of Economy and Competitiveness, Institute of Health Carlos III - FEDER (PI16/01820, PI16/01812, PI16/01858, PI17/01743, and PI17/01526), the Andalusia Regional Government (PI-0538-2017), and the Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP). The authors are also grateful to the Carlos III Institute of Health (ISCIII) for the predoctoral research contract (FI17/00316) granted to L.M.I.-D., the postdoctoral research contract granted to C.F. (Miguel Servet-FEDER fund MS16/00085), and the José María Segovia de Arana contract granted to N.O. (INT18/00060).

This paper is part of the PhD thesis developed by L.M.I.-D. in the context of the"Clinical Medicineand Public Health Program"of the University of Granada. ; BACKGROUND:Newborns in neonatal intensive care units (NICUs) are in contact with a variety of medical products whose production might includesynthetic chemicals with hormonal activity.OBJECTIVES:Our aim was to assess the content of bisphenol A (BPA) and parabens (PBs) and the hormone-like activities of a subset of medical prod-ucts commonly used in NICUs in prolonged intimate contact with NICU newborns.METHODS:Fifty-two NICU items were analyzed, determining the concentrations of BPA and PBs [methyl- (MeP), ethyl- (EtP), propyl- (PrP), andbutylparaben (BuP)] and using the E-Screen and PALM-luciferase assays to measure thein vitro(anti-)estrogenic and (anti-)androgenic activity,respectively, of the extracts. Items found to have elevated BPA/PB content or hormone-like activities were further extracted using leachingmethodologies.RESULTS:BPA was found in three-fifths and PBs in four-fifths of tested NICU items, and∼25%and∼10%of extracts evidenced estrogenic andanti-androgenic activity, respectively. The highest BPA content was found in the three-way stopcock (>7:000 ng=g), followed by patterned transpar-entfilm dressing, gastro-duodenal feeding tubes, sterile gloves, single-lumen umbilical catheters, and intravenous (IV) infusion extension sets (con-centrations ranged from 100 to 700 ng=g BPA). A total PB concentration (PPBs) >100 ng=g was observed in several items, including light therapyprotection glasses, patterned transparentfilm dressing, winged IV catheters, IV infusion extension sets, and textile tape. The highest estrogenic activ-ity [>450 pM estradiol equivalent (E2eq)] was found in small dummy nipples, three-way stopcocks, and patterned transparentfilm dressing and thehighest anti-androgenic activity [>5 mM procymidone equivalent units per gram (Proceq=g)] in small dummy nipples and three-way stopcocks ; This research was funded in part by grants from the European Union Commission (The European Human Biomonitoring Initiative H2020-EJP-HBM4EU), the Spanish Ministry of Economy and Competitiveness, Institute of Health Carlos III - FEDER (PI16/01820, PI16/01812, PI16/01858, PI17/01743, and PI17/01526), the Andalusia Regional Government (PI-0538-2017), and the Spanish Consortium for Research on Epidemiology and Public Health(CIBERESP). The authors are also grateful to the Carlos IIIInstitute of Health (ISCIII) for the predoctoral research contract(FI17/00316) granted to L.M.I.-D., the postdoctoral researchcontract granted to C.F. (Miguel Servet-FEDER fund MS16/00085), and the José María Segovia de Arana contract granted to N.O. (INT18/00060).