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Full-Text Articles in Life Sciences
Running Endurance In 27-Hour Fasted Humans, Kristin A. Carlson
Running Endurance In 27-Hour Fasted Humans, Kristin A. Carlson
Loma Linda University Electronic Theses, Dissertations & Projects
Nine male marathon runners were exercised to exhaustion to determine the effects of a 27-hour fast on endurance performance. Each subject completed two exercise tests at 72% peak oxygen uptake (Vo2max), one following a 27-hour fast and one three hours after a pre-exercise meal, in random order. Fasting caused a 44.7±5.8% (±SE) decrease in endurance performance (p2(9.3±2.0%), heart rate (8.4±2.4%), rating of perceived exertion (RPE), and psychological fatigue, evident within the first 60 minutes of exercise. There was no difference in plasma glucose or epinephrine levels. Muscle glycogen degraded at the same rate (0.48±.15 vs 0.47±.28 u moles …
Relationship Between Dietary Intake And Reproductive Hormones In Premenopausal Vegetarian And Nonvegetarian Seventh-Day Adventist Women, Joan M. Spuehler
Relationship Between Dietary Intake And Reproductive Hormones In Premenopausal Vegetarian And Nonvegetarian Seventh-Day Adventist Women, Joan M. Spuehler
Loma Linda University Electronic Theses, Dissertations & Projects
There is evidence that specific nutrients may modify hormonal balance and contribute to breast cancer etiology. To investigate the relationship between dietary nutrients and plasma reproductive hormones and to determine hormone-nutrient interrelationships, we measured plasma estrogens, androgens. progesterone and prolactin levels in 10 premenopausal Seventh-day Adventist (SDA) vegetarian and 10 premenopausal SDA nonvegetarian women. Over three days in each of three consecutive months. diet records and fasting midluteal blood samples were collected. The nonvegetarians consumed significantly more protein, total and saturated fats, oleic and linoleic acids, and cholesterol than did the vegetarians. Hormonal status of the two groups did not …
Sprague-Dawley Rats Fed Milk Or Beef Protein : Differences In Response To 1,2-Dimethylhydrazine Carcinogenesis, Stanley W. L. Ng
Sprague-Dawley Rats Fed Milk Or Beef Protein : Differences In Response To 1,2-Dimethylhydrazine Carcinogenesis, Stanley W. L. Ng
Loma Linda University Electronic Theses, Dissertations & Projects
Colon cancer is responsible for a high percentage of cancer deaths in developing countries, and there is convincing epidemiological evidence that meat protein and fat in the diet increase the incidence of this form of cancer. An animal tumor model which has been used by many investigators interested in colon cancer is the 1,2-dimethylhydrazine (DMH)-rat or DMH-mouse tumor model. In previous work done in this laboratory the DMH-BALB/c mouse tumor model was used to compare the production of colon tumors in mice fed a diet using non-fat powdered milk as a source of protein with those in mice fed beef …
Dietary Cholesterol, Tissue Phospholipids And Prostacylin Production Of Rat Aorta, Mieko Hoshino Andress
Dietary Cholesterol, Tissue Phospholipids And Prostacylin Production Of Rat Aorta, Mieko Hoshino Andress
Loma Linda University Electronic Theses, Dissertations & Projects
Male Sprague-Dawley weanling rats were divided into three groups, a control (rat-chow and 5% corn oil), the control diet plus cholesterol, and the control diet plus both cholesterol and cholic acid. After four months the animals were sacrificed and blood samples, along with abdominal and thoracic aorta cross-sectional ring segments. were collected. The serum cholesterol levels, fatty acid compositions in the phospholipids (PL) of the aortic tissues (thoracic and abdominal aorta tissues combined), and the endogenous 6-keto-PGFla (stable metabolite of PGI2) production in thoracic and abdominal aortic tissues were While serum cholesterol levels were highest in the rats fed a …