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Vitamin D, Calcium, And Dairy Consumption And Risk Of Early Menopause, Alexandra C. Purdue-Smithe

Doctoral Dissertations

Early menopause, defined as the cessation of ovarian function before the age of 45, affects roughly 10% of women in Western populations. Current research suggests that women who experience early menopause are at increased risk for cardiovascular disease and other adverse health outcomes. Early menopause may also have substantial financial and psychological consequences for family planning, particularly as women increasingly delay childbearing into the later reproductive years. Emerging research suggests that modifiable lifestyle factors such as diet may play an important role in ovarian aging. According to our review of the current biologic and epidemiologic literature in Chapter 1, vitamin …

Vitamin D Status And Bone Health Among Young Adult Women, Caroline Stone

Masters Theses

Background:

Osteoporosis is estimated to affect 200 million women in the world, affecting 10% of women aged 60, 20% of women aged 70, 40% of women aged 80 and 67% of women aged 90. Osteoporosis is characterized by low bone density and increases the risk for fractured bones; however, it may be prevented with modifiable factors such as supplements, diet, and physical activity. Vitamin D deficiency leads to bone mineral density loss, as Vitamin D₃ is responsible for calcium absorption into the bones. Bone consolidation is believed to occur between 20 and 30 years old; thus, attaining peak bone …

Micronutrients, Inflammation And Depression Among Women Of Reproductive Age From The National Health And Nutrition Examination Survey 2005-2008, Joycelyn M. Faraj

Doctoral Dissertations

Depression is the leading cause of disease burden among women. Recent evidence indicates that inflammation is associated with depression, and factors that contribute to inflammation can be addressed through nutritional and lifestyle interventions. Vitamins B₆ and D have been linked with depression and have established roles in inflammation, yet their associations with depression in the presence of low-grade inflammation remain unknown. The purpose of this research was to investigate how high sensitivity C-reactive protein (hs-CRP), a biomarker of inflammation, contributes to different dimensions of depression and to determine to what degree inflammation affects the association between vitamins B_{6 …}

Associations Between Vitamin D Status, Adiposity, And Inflammatory Biomarkers In Young Women (18 – 30 Years), Adolphina Addo-Lartey

Doctoral Dissertations

We conducted a cross-sectional analysis among 270 (18- to 30-year old) female participants in the UMass Amherst Vitamin D Status Study (n = 270) to assess the extent to which dietary intakes of calcium and vitamin D are associated with obesity markers. We also evaluated the association between serum 25-OHD concentrations and both adiposity and inflammatory biomarkers. Study participants were mostly Caucasians (84.5%) with normal BMI, although about half of women had high adiposity (total body fat ‘TBF’≥ 32%). Women reporting adequate intakes of calcium (≥ 1000 mg/day) but low intakes of vitamin D (< 600 IU/day) were more than twice as likely to have a high percentage of TBF compared to women with adequate intakes of both calcium and vitamin D. In addition, women with lower calcium intake from supplements were twice as likely to have a waist circumference ≥ 80 cm (OR = 2.04; 95% CI: 1.04 – 3.99) compared to women in the highest tertile of calcium intake. The magnitude of this association is important since among young women 18-30 years old, a waist circumference greater than 80 cm indicates central obesity and suggests increased visceral adiposity, which contributes to hyperlipidemia and other obesity-related chronic conditions. Among all women, total vitamin D, food vitamin D, and supplemental vitamin D intake were not associated with serum 25-OHD concentration (P > 0.05). However, among supplement …