Example sentences for: vitamin

How can you use “vitamin” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • Vitamin E is, however, not a single compound and refers to at least four tocopherols (alpha-, beta-, delta- and gamma-tocopherol) and four tocotrienols (alpha-, beta-, delta- and gamma-tocotrienol).

  • However, these antioxidants may be less effective against a lipid peroxide generating system, and under those conditions an antioxidant like vitamin E may be more effective.

  • Studies in human duodenal biopsy specimens have found a significant correlation between CaT1 mRNA and calbindin D mRNA expression [ 16 ] . Thus, as a working hypothesis, we propose that during times of dietary calcium stress, or during periods of high calcium demand, CaT1 expression in the enterocyte is increased by a vitamin D-dependent mechanism.

  • Relative risks (RR) were calculated by comparing the highest and lowest quintiles of nutrient intake (Q 5 versus Q 1 ). Multivariate models included age at diagnosis, family history of breast cancer in mother or sister, diagnosis of benign breast disease (BBD), age at menarche (in quintiles), body mass index at age 18 (in deciles), adult height (in quartiles), reproductive history (categorical), and vitamin A intake (continuous) in 1980 [ 15 ] . Current vitamin A intake was included in the model because we have previously shown in this cohort of women that lower intake of vitamin A is positively associated with an increased risk of breast cancer.

  • These observations are the first to demonstrate regulation of CaT1 expression by 1,25-dihydroxyvitamin D in the human enterocyte and are consistent with a new model of intestinal calcium absorption wherein vitamin D-mediated changes in brush border membrane CaT1 levels could be the primary gatekeeper regulating homeostatic modulation of intestinal calcium absorption efficiency.


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