Molecular, Genetic, and Biochemical Nutrition Commons^™

Physiological Importance Of 1,25(Oh)2D3 Membrane-Initiated And Nuclear Actions In Chickens As A Function Of Growth, And Maturation In Male And Female Chickens, Birgitta Larsson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

It is well established that l,25(OH)₂D₃ is a major regulator of calcium homeostasis. The steroid exerts its effects on its target organs by two mechanisms, a slow mechanism mediated by nuclear vitamin D receptors (nVDR), and a rapid mechanism mediated by the l,25(OH)₂D₃ membrane-associated rapid response steroid binding protein (l,25D₃-MARRS bp). In this dissertation, the physiological relevance of membrane initiated steroid signaling was investigated by studying the correlation of age in male and female chickens with the magnitude of responses to l,25(OH)₂D₃ in duodena from 7-, 14-, 28-, and …

Biomarkers Of Bone Turnover In Vegetarians And Omnivores, Susan Kim Louie Lue

Loma Linda University Electronic Theses, Dissertations & Projects

A cross-sectional study on fasting serum and 24-hour urine samples were used to determine whether biochemical markers of bone turnover, resorption and formation, differed in a group of 50 healthy premenopausal Caucasian women eating vegan, lactoovovegetarian(LOV) and omnivorous diets.

The women, ages 20-42, had participated in a study of bone mineral density(BMD). The three groups were comparable in mean age, BMI, calorie intake, calories spent in exercise, kcal/kg body weight, protein/day, protein/kg body weight and urinary creatinine.

Biomarkers included those of bone resorption—pyridinoline, deoxypyridinoline, and N-telopeptides, and of bone turnover—serum and urinary osteocalcin(OC), skeletal alkaline phosphatase, and propeptide-type-I-carboxyterminal-procollagen(PICP). In all …