Case-Control

Risk factors for inflammatory bowel disease: A prospective multi-center study.

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INTRODUCTION: Environmental risk factors have been associated with inflammatory bowel disease (IBD). With rising incidence, it is important to know risk factors associated with IBD in our population. This study was aimed to evaluate risk factors for IBD from western India. METHODS: This was prospective, multi-center case-control study which included 1054 patients with IBD of which 765 (72.5%) were ulcerative colitis (UC) and 289 (27.4%) Crohn's disease (CD). Asymptomatic individuals without a history of any major illness served as controls.

Cross-sectional and longitudinal comparisons of metabolic profiles between vegetarian and non-vegetarian subjects: a matched cohort study.

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Several previous cross-sectional studies have shown that vegetarians have a better metabolic profile than non-vegetarians, suggesting that a vegetarian dietary pattern may help prevent chronic degenerative diseases. However, longitudinal studies on the impact of vegetarian diets on metabolic traits are scarce.

Insulin-like growth factor-I (IGF-I) and IGF binding protein-3 as predictors of advanced-stage prostate cancer.

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BACKGROUND: Plasma levels of insulin-like growth factor-I (IGF-I) have been associated with the risk of prostate cancer. However, the association ofIGF-I with specific tumor stage and grade at diagnosis, which correlate with risk of recurrence and mortality, has not been studied rigorously. To determine whether plasma levels of IGF-I and its main circulating binding protein, IGF binding protein-3 (IGFBP-3), predict more aggressive forms ofprostate cancer, we investigated the association between plasma levels of each and specific stages and grades of prostate cancer.

Dairy products, calcium, phosphorous, vitamin D, and risk of prostate cancer (Sweden).

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OBJECTIVES:
Dairy products consistently have been associated with an increased risk of prostate cancer, yet the mechanism of this relationship remains unknown. Recent hypotheses propose that 1,25 dihydroxyvitamin D (1,25 D) is protective for prostate cancer. One study in the United States found that calcium consumption, which can lower circulating 1,25 D, was associated with higher risk of advanced prostate cancer, and we sought to address this hypothesis in a distinct population.

Plasma Phospholipid Fatty Acids and Prostate Cancer Risk in the SELECT Trial.

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BACKGROUND:
Studies of dietary ω-3 fatty acid intake and prostate cancer risk are inconsistent; however, recent large prospective studies have found increased risk of prostate cancer among men with high blood concentrations of long-chain ω-3 polyunsaturated fatty acids ([LCω-3PUFA] 20:5ω3; 22:5ω3; 22:6ω3]. This case-cohort study examines associations between plasma phospholipid fatty acids and prostate cancer risk among participants in the Selenium and Vitamin E Cancer Prevention Trial.

Plasma lipids of vegetarian and nonvegetarian males: effects of egg consumption.

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Mean fasting plasma total cholesterol, low-density lipoprotein cholesterol and total triglycerides were 6, 7, and 19% lower (NS) in 36 vegetarian males compared to 18 nonvegetarian males of similar age, weight, height, alcohol consumption, and physical activity levels. None of the participants smoked. Although the vegetarian subjects were characterized by widely differing egg consumption levels, no relationships were observed between dietary or egg cholesterol intakes and plasma lipid levels.

Vegetarian diet as a risk factor for tuberculosis in immigrant south London Asians.

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BACKGROUND:In a previous retrospective study of tuberculosis in south London among Asian immigrants from the Indian subcontinent Hindu Asians were found to have a significantly increased risk for tuberculosis compared with Muslims. This finding has been further investigated by examining the role of socioeconomic and lifestyle variables, including diet, as risk factors for tuberculosis in Asian immigrants from the Indian subcontinent resident in south London.

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