A magnetic resonance spectroscopy technique to determine the stomach emptying rate of mixed diets in growing rats

submitted by: cmontoya
A rapid technique allowing the accurate determination of stomach emptying rate (SER) would be useful for understanding the process of digestion. The development of a rapid magnetic resonance spectroscopy (MRS) technique based on the marker AlCl3-6H2O, (Al-MRS), to determine the real-time SER of foods in a rat model is described. Experiments were conducted to establish several parameters for the Al-MRS technique and to validate the technique against the traditional serial slaughter method....
Authors: Carlos A Montoya, Jason P Hindmarsh, Paul J Moughan, Shane M Rutherfurd

High nutritional quality is not associated with low greenhouse gas emissions in self-selected diets of French adults

submitted by: Nicole Darmon
Background: Healthy diets are supposed to be more environmentally friendly because they rely mainly on plant-based foods, which have lower greenhouse gas emissions (GHGEs) per unit weight than do animal-based foods. Objectives: The objectives were to estimate the GHGEs associated with the consumption of self-selected diets in France and to analyze their relation with the nutritional quality of diets. Design: For each adult in the national dietary Individual and National Survey on Food...
Authors: Florent Vieux, Louis-Georges Soler, Djilali Touazi, Nicole Darmon

Dietary Selenium Deficiency Partially Rescues Type 2 Diabetes–Like Phenotypes of Glutathione Peroxidase-1–Overexpressing Male Mice

submitted by: xlei
This study was conducted to determine whether dietary Se deficiency precluded overproduction of glutathione peroxidase-1 (GPX1) activity in mice overexpressing (OE) this gene and thus rescued their type 2 diabetes–like phenotypes. A total of 20 male OE and wild-type (WT) mice were fed an Se-deficient (<0.02 mg/kg) diet or an Se-supplemented (0.3 mg/kg as sodium selenite) diet from 1 to 5 mo of age. Dietary Se deficiency eliminated or attenuated (P < 0.05) genotype differences in...
Authors: Xin Gen Lei, Li Li, Matt Pepper, Carol Roneker, Marko Vatamaniuk, Xi Yan

Social Media Delivered Sexual Health Intervention: A Cluster Randomized Controlled Trial

submitted by: sheana
Design: Cluster randomized trial; data collected in 2010-2011; analyzed in 2011-2012 Setting/Participants: Individuals (seeds) recruited in multiple settings (online, via newspaper ads and face-to-face) who were asked to recruit up to three friends, who in turn recruited additional friends, extending three waves from the seed. Seeds and waves of friends were considered networks and exposed to either intervention or control condition. Intervention: Exposure to Just/Us, a Facebook page...
Authors: Sheana Bull, Deborah Levine, Sandra Black, Sarah Schmiege, John Santelli

Diet composition is associated with endogenous formation of N-nitroso compounds in obese men

submitted by: silviagratz
Endogenous formation of carcinogenic N-nitroso compounds (NOC) occurs in the human gut. Red meat is considered the most important dietary component linked to NOC formation, although nitrate and vitamin C (VitC) also contribute. We previously showed that high-protein weight-loss diets increased fecal NOC and this was enhanced by simultaneous carbohydrate restriction. Although previous studies have focused on the effect of either 1 or 2 dietary components on endogenous NOC formation, no...
Authors: Grietje Holtrop, Alexandra M. Johnstone, Claire Fyfe, Silvia W. Gratz

Prepregnancy adherence to dietary patterns and lower risk of gestational diabetes mellitus

submitted by: dtobias
Abstract BACKGROUND: Previous studies observed inverse associations of adherence to the alternate Mediterranean (aMED), Dietary Approaches to Stop Hypertension (DASH), and alternate Healthy Eating Index (aHEI) dietary patterns with risk of type 2 diabetes; however, their associations with gestational diabetes mellitus (GDM) risk are unknown. OBJECTIVE: This study aimed to assess usual prepregnancy adherence to well-known dietary patterns and GDM risk. DESIGN: Our study included 21,376...
Authors: Deirdre Tobias, Cuilin Zhang, Jorge Chavarro, Katherine Bowers, Janet Rich-Edwards, Bernard Rosner, Dariush Mozaffarian, Frank Hu

Science Nation - If These Teeth Could Talk

submitted by: nsf
With funding from the National Science Foundation, Peter Ungar is revealing more details about the lives of our human ancestors, and he's doing it through dentistry - sort of! The University of Arkansas anthropologist uses high tech dental scans to find out more about the diets of hominids, a technique that sometimes leads to new and very different conclusions. While anthropologists traditionally determine the diets of our ancestors by examining the size and shape of teeth and jaws, Ungar's...

Fad Diets

submitted by: akchin

We are featuring common Fad Diet commercials, bringing in a Pharmacist's expertise on the matter, and presenting the reality of the best way to have a healthy lifestyle.

Absorption of Iron from Ferritin Is Independent of Heme Iron and Ferrous Salts in Women and Rat Intestinal Segments.

submitted by: egoldsmith
Ferritin iron from food is readily bioavailable to humans and has the potential for treating iron deficiency. Whether ferritin iron absorption is mechanistically different from iron absorption from small iron complexes/salts remains controversial. Here, we studied iron absorption (RBC 59Fe) from radiolabeled ferritin iron (0.5 mg) in healthy women with or without non-ferritin iron competitors, ferrous sulfate, or hemoglobin. A 9-fold excess of non-ferritin iron competitor had no significant...
Authors: Elizabeth Theil, Huijun Chen, Constanza Miranda, Heinz Janser, Bernd Elsenhans, Marco Núñez, Fernando Pizarro, Klaus Schümann

European Research for diabetes patients

submitted by: COMED2010

The prevalences of obesity, Type 2 diabetes and the metablic syndrome are rising rapidly both in Europe and worldwide. There is evidence that this is due to the population taking less exercise and becoming more sedentary, coupled with the increased consumption of high fat, low fibre foods (fast food or convenience food). The EXGENESIS consortium aims to provide insights into the reasons why poor diet and lack of exercise contribute to increasing levels of obesity and diabetes.