Previous studies on the associations between dietary antioxidant vitamins and the risk of cervical cancer remain inconsistent, and little evidence is available for serum antioxidant vitamins, which provide more accurate measurements of these nutrients. We conducted a case-control study of 458 incident cases with invasive cervical cancer and 742 controls to assess the effects of diet or serum an...

Intramuscular collagen contributes to the variation in background toughness of meat. Vitamin E may reduce intramuscular collagen maturity, while vitamin C has been reported to improve meat texture in beef. The objective of this study was to investigate whether vitamins E and C are able to regulate collagen turnover in bovine intramuscular fibroblasts, the cells responsible for its synthesis and...

Using E.coli bacteria (AB 1157) and leukemia cells (HL 60) as a model for in vitro studies it was established that the efficiency of mitomycin C (MMC) can be influenced in the presence of antioxidant vitamins. This synergistic effect of the vitamins C, E-acetate and beta-carotene on MMC activity is rather strong for E.coli bacteria under irradiation (15 and 50 Gy) in the presence of air. Vitami...

B-vitamins are recognized as essential organic growth factors for many organisms, although little is known about their abundance and distribution in marine ecosystems. Despite their metabolic functions regulating important enzymatic reactions, the methodology to directly measure different B-vitamins in aquatic environments has only recently been developed. Here, we present the first direct meas...

BACKGROUND Emerging evidence indicates that maternal oxidative stress during pregnancy could impair fetal growth and that antioxidant vitamins (e.g. vitamins A, E and C) have a significant role in maintaining physiological processes of pregnancy and growth. AIMS To determine the concentrations of vitamins A, E, and C in pair-matched maternal and cord serum samples of neonate, and thus to inve...

Received January 14, 2013. Accepted January 29, 2013. Correspondence to: Mohammad Reza Habibi, MD Mazandaran Heart Center, Hazrat Fatima Hospital, Artesh Boulevard, Mazandaran Province, Sari, Iran Tel: +98-1512226262, Fax: +98-1512268915, E-mail: [email protected] This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:// ...

Division of Nephrology, CHU de Québec, L’Hôtel-Dieu de Québec Hospital and Faculty of Medicine, Laval University, Quebec, QC, Canada, Division of Pathology, CHU de Québec, L’Hôtel-Dieu de Québec Hospital and Faculty of Medicine, Laval University, Quebec, QC, Canada and Division of Haematology-Oncology, CHU de Québec, L’Hôtel-Dieu de Québec Hospital and Faculty of Medicine, Laval University, Que...

Atherosclerosis remains one of the leading causes of death in Western populations. Subsequent to the discovery that oxidative stress plays a pivotal role in the development and progression of atherosclerosis, vitamins C and E, along with other antioxidants, were studied as potential therapies for the disease. However, while in vitro and in vivo studies showed promising antiatherogenic effects f...

Ascorbate (vitamin C) is a cofactor for a number of metabolic enzymes and is an indisputable essential vitamin C for humans. However, the potential of ascorbate as an anticancer agent has been a topic of controversy. A number of previous reports have addressed both positive aspects and limitations of ascorbate in cancer therapy. In this review, we briefly summarize the potential antitumor effec...