Background Vegetarian-type dietary patterns have been associated with reducing the risk of developing diabetes and may function as an effective strategy for diabetes management. Objectives We aimed to examine the associations between adherence to plant-based diet indices and the risk of developing diabetes in the Boston Puerto Rican Health Study. Methods Puerto Rican adults (n = 646), aged 45–75 y and free of diabetes at baseline, were included. Dietary intake was assessed via a validated FFQ. Three plant-based dietary indices were calculated: an overall plant-based diet index (PDI), a healthful plant-based diet index (hPDI), and an unhealthful plant-based diet index (uPDI). Incident diabetes was defined as fasting plasma glucose ≥ 126 mg/dL (7.0 mmol/L), glycated hemoglobin ≥ 6.5% (48 mmol/mol), or use of hypoglycemic agents during follow-up. Cox proportional hazards were used to evaluate associations between the dietary patterns and incidence of diabetes, adjusting for potential confounders, such as age, sex, socioeconomic status, lifestyle factors, obesity, total energy intake, depressive symptomatology, and plasma concentrations of lipids. Results During a mean of 4.2 y of follow-up, we identified 134 diabetes cases. After adjustment for covariates, higher hPDI was associated with lower risk of developing diabetes (adjusted HR for the highest compared with the lowest tertile: 0.54; 95% CI: 0.31, 0.94; P-trend = 0.03). In contrast, the PDI and uPDI were not significantly associated with the risk of diabetes (P-trend > 0.3 for both). Conclusions The healthful plant-based dietary index, but not the total plant-based dietary index, was inversely associated with diabetes risk. These findings suggest that the quality of plant-based diets must be considered when recommending plant-based diets for the prevention of diabetes. This trial was registered at clinicaltrials.gov as NCT01231958.
This study examined the associations between overall diet quality and the risk of dementia in a rural cohort among the oldest old. Included in this prospective cohort study were 2232 participants aged ≥ 80 years and dementia-free at the baseline according to the Geisinger Rural Aging Study (GRAS), a longitudinal cohort in rural Pennsylvania. In 2009, diet quality was assessed by a validated dietary screening tool (DST). Incident cases of dementia during 2009–2021 were identified using diagnosis codes. This approach was validated by a review of electronic health records. Associations between diet quality scores and the incidence of dementia were estimated using the Cox proportional hazards models, adjusted for potential confounders. Across a mean of 6.90 years of follow-up, we identified 408 incident cases of all-cause dementia. Having a higher diet quality was not significantly associated with a lower risk for incidents of all-cause dementia (adjusted HR for the highest compared with the lowest tertile: 1.01, 95% CI: 0.79, 1.29, P-trend = 0.95). Similarly, we did not observe a significant association between diet quality and altered risks of Alzheimer’s disease and other forms of dementia. Overall, having a higher diet quality was not significantly associated with a lower risk of dementia among the oldest old during the full follow-up.
Introduction: Sleep disruption (SD) and high sodium diets increase hypertension. We determined if SD increased sodium intake, preference for high sodium foods and if sex modified this effect when rats were fed a cafeteria-style diet (CAF-D). We hypothesized that SD would increase sodium intake and preference for savory foods independent of sex.Methods: Sprague-Dawley rats (n=8 male, n=20 female) were fed a CAF-D (rotating selection of 24 sweet and savory human foods + rodent chow ad libitum) and randomized to sleep undisturbed or SD due to environmental noise (8h/d, 16d). Calorie intake, weight gain and estrous cycle phase were determined daily.Results: In contrast to before treatment, undisturbed females gained significantly more weight than undisturbed males. Sleep disrupted males and females had similar weight gain. SD significantly increased calorie intake in males only. Independent of treatment or sex, rats preferred sweet relative to savory foods. Treatment didn't affect sodium intake but sleep disrupted males consumed significantly more sodium than females and ate more calories from savory foods than undisturbed males.Conclusions: Females are more sensitive to CAF-D than males. Despite that SD increased savory food intake in males, SD did not increase sodium consumption because these rats preferred sweet foods.
Objectives Studies investigating the associations between diet, in particular diet quality, and the risk of dementia are few, especially in populations of advanced age, most notably among the very old. We examined the associations between diet quality and the longitudinal risk of dementia in a prospective rural cohort among the oldest old. Methods In our present study, we included 2,232 participants that were ≥80 years of age at baseline, from the Geisinger Rural Aging Study, a longitudinal cohort residing in rural Pennsylvania. In 2009, diet quality was captured by a validated dietary screening tool consisting of 25 questions on food-related and behavior-specific items. Incident cases of dementia were identified using diagnosis codes. This approach was validated by a review of electronic health records. After adjusting for sociodemographic factors, anthropometric measures, and health and lifestyle variables, we examined the associations between diet quality (in tertiles) and the incidence of dementia using Cox proportional hazards models to calculate hazard ratios (HRs) and 95% confidence intervals (CIs). Results Across a mean of 6.90 years of follow-up, we identified 408 incident cases of all-type dementia. Having higher diet quality was not significantly associated with lower risk for incident all-type dementia (adjusted HR for the highest compared with the lowest tertile: 1.01, 95% CI: 0.79, 1.29, P-trend = 0.95). Similarly, we did not observe a significant association between diet quality and altered Alzheimer's disease risk (P-trend = 0.86). Conclusions In our prospective cohort study, having higher diet quality was not significantly associated with a lower risk of dementia among the oldest old. These findings contribute to the limited understanding of the impact of overall diet quality on the longitudinal risk of dementia in at-risk, rural populations of advanced age. Funding Sources This study is funded by the United States Department of Agriculture, Agricultural Research Service agreement #8050-51,530-015-00D.
IMPACT: Understanding dietary patterns and nutrient intakes of the aging population may help address concerns and dietary guidelines regarding their nutritional needs. OBJECTIVES/GOALS: The objective of this study is to test the hypothesis that a healthy dietary pattern in the oldest old (aged 80 years and older) is related to greater compliance with dietary recommendations and better nutrient intake profiles. METHODS/STUDY POPULATION: We conducted a cross-sectional study of 122 participants aged 82 to 97 years old from the Geisinger Rural Aging Study (GRAS) cohort in rural Pennsylvania (n = 56 men and 66 women). The main outcome measures of the investigation were the daily nutrient intakes and food group intakes evaluated from the average of three 24-hour dietary recalls. The dietary patterns were determined
Objectives To examine the associations between the plant-based diet and risk of developing diabetes in participants of the Boston Puerto Rican Health Study. Methods Included were 691 Puerto Ricans aged 45–75 years who were free of diabetes at baseline. Dietary intake was assessed via a validated food frequency questionnaire. Three plant-based dietary indices were then calculated, including an overall plant-based diet index (PDI), healthful plant-based diet index (hPDI), and an unhealthful plant-based diet index (uPDI). Incident diabetes was defined as fasting plasma glucose 126 mg/dL [7.0 mmol/L], hemoglobin A1c 6.5% [48 mmol/mol] or use of any hypoglycemic agents during follow-up. Cox proportional hazards models were used to evaluate the associations between the plant-based dietary patterns and the incidence of diabetes, adjusting for potential confounders, such as age, sex, socioeconomic status, lifestyle factors, obesity, total energy intake, depression, and plasma concentrations of c-reactive protein and lipid profiles. Results During the 5-years of follow-up, we identified 139 incident diabetes cases. After adjustment for covariates, hPDI was inversely associated with the risk for developing diabetes (P-trend = 0.04). The adjusted hazard ratio (HR) for the highest vs lowest tertiles of hPDI was 0.56 (95% confidence interval: 0.32–0.96). In contrast, The PDI and uPDI dietary indices were not significantly associated with the risk of diabetes (P-trend > 0.2 for both). Conclusions The healthful plant-based dietary index was associated with a lower risk of diabetes. These findings suggest that the healthful plant-based dietary index may be beneficial for the prevention of the development of diabetes. Funding Sources This project was supported by the National Institute on Aging, the National Heart, Lung, and Blood Institue, and the National Center for Advancing Translational Sciences.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.