Nutrition
-
Randomized Controlled Trial
Effect of genetic factors on the response to vitamin D3 supplementation in the VIDARIS randomized controlled trial.
Supplementation provides the best means of improving vitamin D status; however, individual responses vary partly owing to genetics. The aim of this study was to determine whether 28 single nucleotide polymorphisms (SNPs) in six key vitamin D pathway genes (GC, DHCR7, CYP2 R1, CYP24 A1, CYP27 B1, VDR) were associated with differences in response to supplementation. ⋯ Only variants of GC were associated with 25(OH)D concentrations after supplementation. This effect was modest and disappeared after >2 mo of supplementation, suggesting it may be time/dose-dependent and saturable.
-
Randomized Controlled Trial
Effects of using high-intensity interval training and calorie restriction in different orders on metabolic syndrome: A randomized controlled trial.
Studies of the effectiveness of high-intensity interval training (HIIT) combined with calorie restriction (CR) are very limited, and the most effective order of intervention is unclear. Therefore, we investigated the impact of time-efficient HIIT with CR intervention on metabolic syndrome (MetS) and the impact of the intervention order on changes in MetS risk factors. ⋯ The time-efficient intervention program with HIIT and CR had a beneficial effect on MetS; however, the intervention order had no influence on the changes in risk factors.
-
Although it is known that high fructose intake causes salt-sensitive hypertension, the underlying mechanism remains unclear. The aim of this study was to determine whether chronic intake of high fructose coupled with salt (HFS) might alter the structure of the gut microbiota, which contributes to elevated blood pressure. ⋯ The present results demonstrated that gut dysbiosis develops after chronic fructose plus salt intake and contributes to the increase of blood pressure and the activation of the intrarenal renin-angiotensin system. Therefore, targeting gut microbiota provides a helpful therapy method to improve HFS-induced hypertension.
-
Obesity has been identified as an important risk factor for cardiovascular disease and other chronic diseases. However, dietary treatment of obesity is far from being a closed issue. Therefore, it is critical to identify the most appropriate obesity management approaches. The aim of this review was to summarize the effects, potentialities, and limitations of nutritional interventions aimed at managing obesity in primary and secondary health care settings, highlighting the most effective strategies and theories. ⋯ Most trials presented better weight loss results with the association of calorie restrictions and theory-based interventions delivered by dietitians or psychologists. We identified the need to develop interventions in other contexts, such as low- and middle-income countries; further trials comparing a theory- versus not-theory-driven intervention; group-based versus individually based intervention; and intervention using or not using technology.
-
The aim of this study was to evaluate the association between preoperative nutritional status and health-related quality of life (HRQoL) in patients with gastrointestinal cancer who were admitted for elective surgical treatment. ⋯ Malnutrition, assessed by various tools, was associated with poor HRQoL of surgical patients with gastrointestinal cancer.