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Micronutrient Intake And Premenstrual Syndrome, Patricia O. Chocano-Bedoya
Micronutrient Intake And Premenstrual Syndrome, Patricia O. Chocano-Bedoya
Open Access Dissertations
Premenstrual syndrome (PMS) is characterized by the presence of physical and psychological symptoms restricted to the late luteal phase of the menstrual cycle and associated with substantial impairment in life activities. In the U.S. about 8 to 15% of women of reproductive age suffer from PMS. Many micronutrients are potentially involved in the development of this disorder due to their role in the synthesis of neurotransmitters and hormones or in their regulation, but few previous studies have evaluated the effects of micronutrients on PMS. The first study examined the association between B vitamin intakes, and PMS development among women participating …
What Toxicologists And Risk Assessors Think About Hormesis: Results Of A Knowledge And Opinion Survey, Amy C. Jones
What Toxicologists And Risk Assessors Think About Hormesis: Results Of A Knowledge And Opinion Survey, Amy C. Jones
Open Access Dissertations
Hormesis is a nonlinear dose-response characterized by biological responses at low doses that are opposite to those observed at higher doses. Studies and review articles on hormesis are being published at an increasing rate by researchers from diverse disciplines and debate has emerged over the role hormesis in risk assessment. As a result, a survey was conducted to assess toxicologists and risk assessors knowledge and attitudes about the hormesis dose response. Study goals were to: 1) ascertain attitudes towards hormesis and other dose-response models, 2) identify whether acceptance or rejection of hormesis is based on knowledge of hormesis, predisposing values, …
Modifiable Risk Factors For Hypertensive Disorders Of Pregnancy Among Latina Women, Shannon Renee Turzanski Fortner
Modifiable Risk Factors For Hypertensive Disorders Of Pregnancy Among Latina Women, Shannon Renee Turzanski Fortner
Open Access Dissertations
Hypertensive disorders of pregnancy affect approximately 8% of pregnancies, and can lead to serious complications for both mother and child. While Latinas are at two-fold increased risk of preeclampsia relative to non-Latina white women, little research on hypertension in pregnancy has been conducted in this population. Furthermore, there are few modifiable risk factors for hypertensive pregnancy. Therefore, we examined associations between psychosocial stress, physical activity, and pre-pregnancy BMI and gestational weight gain and hypertensive disorders of pregnancy using data from the Latina GDM Study, a prospective cohort study of 1,231 women. The first study evaluated the association between perceived stress …
Detrimental Effects Of Inactivity On Insulin Action, Brooke Rene Stephens
Detrimental Effects Of Inactivity On Insulin Action, Brooke Rene Stephens
Open Access Dissertations
Inactivity reduces insulin action. Energy surplus causes similar reductions to insulin action. Unless energy intake is reduced to match low energy expenditure during inactivity, a concurrent energy surplus may account for the lower insulin action. This study evaluated the effect of inactivity (sitting) with and without energy surplus on insulin action. Fourteen young (26.1 ± 4.5 years (M ± SD)), lean (23.7 ± 7.1% fat), fit (VO 2peak = 49.1 ± 3.3 ml*kg -1 *min -1 ) men (n=7) and women (n=7) completed each of 3, 24-hour conditions: an active condition (i.e. high energy expenditure with energy intake matched to …