bisphenol A (BPA)
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Uses
- used in the production of polycarbonate plastics & epoxy resins that are commonly found in some baby bottles, water containers, linings of metal food cans, etc
Pathology
- report that people with higher urine levels of BPA are more likely to have diabetes & heart disease
- no association between urinary BPA level & type 2 diabetes[3]
- prenatal exposure to bisphenol A is associated with neurobehavioral problems in girls (but not boys) at age 3 years[4]
- enough evidence to ban BPA in food containers[6]
- association with increased urinary BPA & obesity in children & adolescents[8]
- high serum levels of bisphenol A in the first trimester of pregnancy is associated with increased risk of miscarriage[9]
- exposure increases risk of early-onset prostate cancer[11]
- higher urine levels of BPA are associated with increased risk of hypertension in the elderly[12]
Contraindications
Clinical trials
- 75 adults ate 12 oz of fresh vs canned soup for 5 days, then crossed over to the other soup for another 5 days[5]
- urine bisphenol A, collected on days 4 & 5 for each phase was detected in:
- 77% fresh soup
- 100% canned soup
- average urine bisphenol A concentration was ~23 ug/L higher after canned vs fresh soup[5]
- comment: a control group that did not eat soup at all would have been nice
- urine bisphenol A, collected on days 4 & 5 for each phase was detected in:
- handling of thermal-activated receipt paper without gloves increases bisphenol A levels in urine[10]
- urinary BPA concentrations were higher 2 hours after elderly subjects drank soy milk from 2 cans versus 2 glass bottles
- systolic BP was ~4.5 mm Hg higher after 2 cans versus 2 glass bottles[12]
* cohort studies or case-control studies needed to investigate clinical outcomes of bisphenol A exposure
Notes
- how to identify polycarbonate plastics; these usually have the number 7 in the recycling triangle, but 7 is a catch-all category...and not all 7s are polycarbonate
More general terms
References
- ↑ Prescriber's Letter 15(11): 2008 Health Risks of Bisphenol A Detail-Document#: http://prescribersletter.com/(5bhgn1a4ni4cyp2tvybwfh55)/pl/ArticleDD.aspx?li=1&st=1&cs=&s=PRL&pt=3&fpt=25&dd=241108&pb=PRL (subscription needed) http://www.prescribersletter.com
- ↑ Lang IA et al Association of urinary bisphenol A concentration with medical disorders and laboratory abnormalities in adults. JAMA. 2008 Sep 17;300(11):1303-10. Epub 2008 Sep 16. PMID: https://www.ncbi.nlm.nih.gov/pubmed/18799442
- ↑ 3.0 3.1 Ning G et al. Relationship of urinary bisphenol A concentration to risk for prevalent type 2 diabetes in Chinese adults: A cross-sectional analysis. Ann Intern Med 2011 Sep 20; 155:368 PMID: https://www.ncbi.nlm.nih.gov/pubmed/21930854
- ↑ 4.0 4.1 Braun JM et al Impact of Early-Life Bisphenol A Exposure on Behavior and Executive Function in Children Pediatrics October 24, 2011 http://pediatrics.aappublications.org/content/early/2011/10/20/peds.2011-1335.abstract
- ↑ 5.0 5.1 5.2 Carwile JL et al Canned Soup Consumption and Urinary Bisphenol A: A Randomized Crossover Trial JAMA. 2011;306(20):2218-2220
- ↑ 6.0 6.1 Massachusetts Medical Society, Physician's First Watch April 2, 2012 FDA rejects BPA Ban http://www.jwatch.org
- ↑ 7.0 7.1 Physician's First Watch Massachusetts Medical Society, July 30, 2012
Tavernise S FDA Makes it Official: BPA cannot be used in Baby Bottles and Cups New York Times, July 17, 2012 http://www.nytimes.com/2012/07/18/science/fda-bans-bpa-from-baby-bottles-and-sippy-cups.html?_r=1 - ↑ 8.0 8.1 Trasande L et al Association Between Urinary Bisphenol A Concentration and Obesity Prevalence in Children and Adolescents. JAMA. 2012;308(11):1113-1121 <PubMed> PMID: https://www.ncbi.nlm.nih.gov/pubmed/22990270 <Internet> http://jama.jamanetwork.com/article.aspx?articleid=1360865
- ↑ 9.0 9.1 Physician's First Watch, October 15, 2013 David G. Fairchild, MD, MPH, Editor-in-Chief Massachusetts Medical Society http://www.jwatch.org
- ↑ 10.0 10.1 Ehrlich S et al Handling of Thermal Receipts as a Source of Exposure to Bisphenol A. JAMA. 2014;311(8):859-860. PMID: https://www.ncbi.nlm.nih.gov/pubmed/24570250 https://jama.jamanetwork.com/article.aspx?articleid=1832525
- ↑ 11.0 11.1 Tarapore P et al Exposure to Bisphenol A Correlates with Early-Onset Prostate Cancer and Promotes Centrosome Amplification and Anchorage- Independent Growth In Vitro. PLOS One. March 03, 2014 <PubMed> PMID: https://www.ncbi.nlm.nih.gov/pubmed/24594937 <Internet> http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0090332
- ↑ 12.0 12.1 12.2 Orciari Herman A, Fairchild DG, Hefner JE BPA in Canned Beverages Linked to Increases in Blood Pressure Physician's First Watch, Dec 9, 2014 David G. Fairchild, MD, MPH, Editor-in-Chief Massachusetts Medical Society http://www.jwatch.org
Bae S et al Blood Pressure and Aging. Associations of Bisphenol A Exposure With Heart Rate Variability and Blood Pressure. Hypertension. 2012; 60: 786-793 <PubMed> PMID: https://www.ncbi.nlm.nih.gov/pubmed/22851732 <Internet> http://hyper.ahajournals.org/content/60/3/786.full