Bisphenol A exposure and associations with obesity among adults: a critical review.

Objective: To review the literature on bisphenol A (BPA) exposure and obesity in human populations.

Design: Systematic review of the literature via searches of PubMed, EMBASE, Web of Science and reference lists for articles published to 1 August 2014.

Setting: China, Italy, Japan, Republic of Korea, Sweden, UK, USA.

The association between postdiagnosis dietary supplement use and total mortality differs by diet quality among older female cancer survivors.

Background: Dietary supplements are widely used by cancer survivors. However, health effects among older cancer survivors are unclear.

Methods: We used the Iowa Women's Health Study, a prospective cohort study with 2,118 postmenopausal women with a confirmed cancer diagnosis (1986-2002), to evaluate the association between postdiagnosis dietary supplement use assessed in 2004 and subsequent all-cause mortality.

Reality check: there is no such thing as a miracle food.

A recent episode of the Dr. Oz Show suggested endive, red onion, and sea bass as foods that can decrease the risk of ovarian cancer by up to 75%. However, the scientific evidence supporting these recommendations is limited.

Drug-vitamin D interactions: a systematic review of the literature.

Extensive media coverage of the potential health benefits of vitamin D supplementation has translated into substantial increases in supplement sales over recent years. Yet, the potential for drug-vitamin D interactions is rarely considered. This systematic review of the literature was conducted to evaluate the extent to which drugs affect vitamin D status or supplementation alters drug effectiveness or toxicity in humans.

Genetic variation in folylpolyglutamate synthase and gamma-glutamyl hydrolase and plasma homocysteine levels in the Singapore Chinese Health Study.

The enzymes folylpolyglutamate synthase (FPGS) and gamma-glutamyl hydrolase (GGH) are essential for determining intracellular folate availability for one-carbon metabolism (OCM) pathways. FPGS adds glutamyl groups to the folate molecule, thereby converting folate into the preferred substrate for several enzymes in OCM pathways. GGH removes glutamyl groups, allowing folate metabolites to leave the cell.

Tea consumption and epithelial ovarian cancer risk: a systematic review of observational studies.

Ovarian cancer is the seventh most common type of cancer in the United States and is often not diagnosed until late stages. Thus, identifying potential risk factors and prevention strategies is particularly important. This systematic review analyzes existing evidence on the association between tea consumption and epithelial ovarian cancer risk in human observational studies.