08/15/14
Featured
- Intelligence and obesity: which way does the causal direction go?
- Lifestyle interventions for cardiovascular disease risk reduction: a systematic review of the effects of diet composition, food provision, and treatment modality on weight loss.
- Sensory-specific appetite is affected by actively smelled food odors and remains stable over time in normal-weight women.
- RCT: Modified sham feeding of foods with different macronutrient compositions differentially influences cephalic change of insulin, ghrelin, and NMR-based metabolomic profiles.
Findings Contrary to Hypotheses or Popular Beliefs
- “Eating at sit-down restaurants can be worse for you than fast food.”
- RCT: Evidence against a role for GLP-1 in postprandial satiety in humans.
- “From this review, evidence for an association between sugar-sweetened beverage intake and obesity risk is inconsistent when adjustment for energy balance is made.”
- The results of this meta-analysis do not support an independent association between diets high in total fat and pancreatic cancer risk.
- RCT: No discernable effect of an inpatient weight loss intervention with postdischarge follow-up results in weight loss at 6 months when compared to control.
- Weight loss in initially healthy overweight/obese older adults was not associated with psychological benefit.
- Pharmaceutical pollutants in water seem to benefit at least one species.
Exercise
- Exercise of any kind benefits patients with diabetes and people at risk for diabetes.
- Impact of exercise training without caloric restriction on inflammation, insulin resistance and visceral fat mass in obese adolescents.
- RCT: Effect of a 3-month physical activity program on body composition in African American college females.
- RCT: Additive effects of isoflavones and exercise training on inflammatory cytokines and body composition in overweight and obese postmenopausal women.
Muscle
- Preoperative quality and quantity of skeletal muscle and mortality.
- Sarcopenic obesity: under-recognised and over treated?
Methods
- Scientists use fruit flies to study diabetes.
- Method of assessing parent-child grocery store purchasing interactions using a micro-camcorder.
- Validity of the Bite Counter device in a controlled laboratory setting.
- Just-About-Right and ideal scaling provide similar insights into the influence of sensory attributes on liking.
- Meta-analysis as evidence: building a better pyramid.
Economics
- The impact of wealth on weight.
- Neighborhood deprivation and diagnosed childhood obesity: a nationwide multilevel study from Sweden.
Food
- RCT: Impact of medium and long chain triglycerides consumption on appetite and food intake in overweight men.
- RCT: Effects of a normal protein vs. high protein breakfast on food cravings and reward signals in overweight/obese “breakfast skipping,” late adolescent girls.
- RCT: Effects of varying the inter-meal interval on relationships between antral area, gut hormones and energy intake following a nutrient drink in healthy lean humans.
- RCT: Breakfast replacement with a low-glycaemic response liquid formula in patients with type 2 diabetes.
Epidemiology
- Association between obesity, race and Knee osteoarthritis: The Multicenter Osteoarthritis Study.
- Heavier people, no matter what age, may have less endurance in manufacturing jobs.
- Associations of grandparental schooling with adult grandchildren's health status, smoking, and obesity.
- Moderate to severe obesity is associated with a poorer invasive breast cancer prognosis.
- Body mass index, physical activity, and smoking in relation to military readiness.
- Malaria’s toll in the Peace Corps.
- CDC projects 40 percent of Americans will develop diabetes.
Stigma
- Obese body sizes are associated with perceived laziness, isolation, and negative social stigma in Botswana.
- Physiotherapists demonstrate weight stigma: a cross-sectional survey of Australian physiotherapists.
- Stigma and the perpetuation of obesity.
Drugs
- RCT: oral administration of Gelesis100, a novel hydrogel, significantly decreases body weight in overweight and obese subjects.
- Overview of new antiobesity drugs.
- RCT: effect of a melanocortin receptor 4 (MC4R) agonist, RM-493, on resting energy expenditure (REE) in obese subjects.
- RCT: naltrexone to counteract antipsychotic-associated weight gain: proof of concept.
- Preventing olanzapine-induced weight gain using betahistine: a study in a rat model with chronic olanzapine treatment.
- Nicotine enhances modulation of food-cue reactivity by leptin and ghrelin in the ventromedial prefrontal cortex.
- FDA-approved medications for the treatment of overweight and obesity.
Surgery
- RCT: preoperative intervention to increase physical activity in bariatric surgery patients.
- RCT: weight loss, adipokines, and quality of life after sleeve gastrectomy in obese patients with stages 3-4 CKD.
- Bariatric surgery for severely obese adolescents.
- Large-volume liposuction and fasting insulin levels.
Sugar
- Commentary: “some of my colleagues have created a cottage industry in the indictment of sugar in general, and fructose in particular, for crimes against humanity.”
- RCT: Dietary Fructose Reduction Improves Markers of Cardiovascular Disease Risk in Hispanic-American Adolescents with NAFLD.
- Sugar-Sweetened Beverage Consumption Among Adults — 18 States, 2012.
- RCT: The Effects of Fructose-Containing Sugars on Weight, Body Composition and Cardiometabolic Risk Factors When Consumed at up to the 90th Percentile Population Consumption Level for Fructose.
- Systematic Review: “Overall, the available evidence is not sufficiently robust to draw conclusions regarding effects of fructose, HFCS, or sucrose consumption on NAFLD.”
- Normal Roles for Dietary Fructose in Carbohydrate Metabolism.
- RCT: No Change in Oral Glucose Tolerance Tests As a Result of Ten Weeks of Consumption of Various Fructose Containing Sugars or Glucose.
- Concrete images of the sugar content in sugar-sweetened beverages reduces attraction to and selection of these beverages.
- Commentary: Uninterpretable results from a meta-analysis of fructose and metabolic syndrome.
- Loneliness, Social Integration and Consumption of Sugar-Containing Beverages: Testing the Social Baseline Theory.
- Editorial: Oh sugar!
Evolution, Energetics, & Ecology
- A thermodynamic theory of microbial growth.
- Energetics, scaling and sexual size dimorphism of spiders.
- Increasing energetic cost of biosynthesis during growth makes refeeding deleterious.
- Senescence or selective disappearance? Age trajectories of body mass in wild and captive populations.
Clinical
- RCT: effects of poly-bioactive compounds on lipid profile and body weight in a moderately hypercholesterolemic population with low cardiovascular disease risk.
- RCT: effects on glycemic control and weight of a widely available weight control program tailored for people with type 2 diabetes: six-month results.
- Obese individuals may require 40% higher vitamin D intake than non-obese individuals.
- Few diabetes patients test glucometers with control solutions and few physicians recommend it.
Obesity Paradox
Policy Related
- DOE increases public access to research results.
- Put down the cupcake: new ban hits school bake sales.
- A systematic review of the effectiveness of food taxes and subsidies to improve diets: Understanding the recent evidence.
- “Our results suggest that anti-obesity advertising is more effective for overweight subjects and healthy food advertising is more effective for normal-weight subjects.”
- Lawmakers call for details on trial participants’ sex and race.
Commentary
- Advocacy groups take obesity naysayers to task.
- Explaining the obesity paradox.
- Are We Overdoing Salt Restrictions?
- Too much food or too little movement?
- Losing weight is depressing?
- E-cigarettes & sweeteners: who needs facts?
- What’s becoming of the word “Fat”?
- Shocking anti-obesity PSA sparks debate.
- Scientific studies biased by reward systems.
- Is fat shaming OK if you target parents?
Basic Science
- Intrinsic aerobic capacity impacts susceptibility to acute high-fat diet-induced hepatic steatosis.
- Syndecan-1 knockout mice lack proper intradermal fat, and are 60 to 80 percent more resistant to tumors than normal mice.
- Pterostilbene, a dimethyl ether derivative of resveratrol, reduces fat accumulation in rats fed an obesogenic diet.
- Foodborne transmission of bovine spongiform encephalopathy to non-human primates results in preclinical rapid-onset obesity.
- Grizzly Bears, insulin resistance, and hibernation.
- Why Zebrafish?
General Science
- Mapping ecologically relevant social behaviours by gene knockout in wild mice.
- Translational genomics: clues from the resilient.
- Boosting insect aggression by altering brain metabolism.
- Lab-based lucid dreaming (self-awareness in dreams).
- Electron theft, not drug effects, may be how anesthesia knocks people out.
- Covert images and anti-counterfeit drug labels.
- Student could be jailed for posting another scientist’s thesis online.
- Maryam Mirzakhani: first woman to ever win the Fields Medal – known as the "Nobel Prize of mathematics."
- The most realistic fake brain tissue ever.
- Photo editing algorithm changes weather, seasons automatically.
- Vaccine alternative protects mice against malaria.
Video
- Beating obesity: start with the exercise as a Vital Sign.
- Why don’t doctors prescribe physical activity?
- Exercise scripts: teaching doctors to prescribe exercise.
Announcements
- Call for Papers: weight stigma and eating behaviors.
- UAB researchers receive NIH grant to offer a New Short Course: "Strengthening Causal Inference in Behavioral Obesity Research."
- New book on obesity and sex lives.
- Joint ACSM/AND/ILSI/IFIC Foundation Webcast: Energy balance at the crossroads: translating the science into action