Fasting in Biological News

Is there a relationship between sleep-wake rhythm and diabetes?

... between the sleep-wake rhythm and the fasting glucose level. The finding could open up new ... gene which is associated with both elevated fasting glucose levels as well an elevated risk for type ... is to identify gene variants which regulate the fasting glucose levels in healthy individuals. The study ...

Discovery of new gene associated with diabetes risk suggests link with body clock

... melatonin receptor 1B is associated with high fasting glucose levels and increased risk of type 2 ... 1B (MTNR1B) showed a rise of 0.07 mmol/l in fasting glucose level on average and a 9% increase in ... gene variant inherited from a parent. "High fasting glucose levels are early markers of diabetes and ...

Food for thought -- regulating energy supply to the brain during fasting

... got to pay your debt, and the same is true in fasting metabolism." The Salk researchers' findings, ... control. Most tissues in our bodies respond to fasting by switching from their usual high-octane energy ... glucose production. As in a relay race, during fasting the baton for glucose production appeared to be ...

People who skip meals: are they better off?

... encouraged by the LDS church: not smoking; fasting (abstaining from food and drink for two ... (67 percent had 70 percent or greater blockage). fasting was the strongest predictor of lower heart ... less likely to be diagnosed with CAD, but once fasting was considered the finding wasnt significant, ...

Sugary drinks, not fruit juice, may be linked to insulin

... beverages per day had significantly higher fasting blood levels of insulin as compared to ... Science and Policy at Tufts University. Higher fasting levels of insulin mean these study participants ... blood levels of insulin as well as glucose. High fasting glucose levels, like ...

Two dietary oils, two sets of benefits for older women with diabetes

... average of about 1.4 pounds and 3 pounds. Safflower oil also lowered fasting blood sugar levels by between 11 and 19 points on average. Blood sugar is ... 129 to 148 after 16 weeks of safflower oil supplementation. "Lowering fasting glucose is important for these women. The overall effect in just 16 weeks ...

Fatty foods -- not empty stomach -- fire up hunger hormone

... Ghrelin is a hormone that was believed to accumulate during periods of fasting and is found in the body in high concentrations just before meals. It is ... offer an explanation of what could have been happening during the longer fasting periods in these human studies," Tschp adds. "Without dietary fats, ...

Decreasing insulin resistance prevents obesity-related cardiovascular damage

... lost and the high and low insulin swings begin. "If you are obese, the fasting glucose may be a little bit off but not terrible. What is terrible is you ... us is, if you can just improve the fine control, the fact that your fasting glucose is a little off, despite the fact that you are still fat, your ...

Treatment corrects severe insulin imbalance in animal studies

... from those mice, their blood glucose levels become low, a condition called fasting hypoglycemia. Mice who had received exendin-(9-39), however, had significantly higher levels of fasting blood glucose compared to mice that were not treated with the peptide, and ...

The battle for CRTC2: How obesity increases the risk for diabetes

... to the development of hyperglycemia, or high blood glucose levels. We asked whether chronic ER stress in obesity leads to abnormal activation of the fasting switch that normally controls glucose production in the liver." The ER, short for endoplasmic reticulum, is a protein factory within the cell. To ...

Drinking 100 percent fruit juice is associated with lower risk of obesity and metabolic syndrome

... while risk for metabolic syndrome (defined as the presence of three or more of the following: central obesity, elevated blood glucose, elevated fasting triglycerides, low HDL-cholesterol, elevated blood pressure) was 15% lower compared to non-consumers. "We know that maintaining a healthy diet ...

LSUHSC student awarded top national honor for diabetes research

... 21, 2009 at 9:00 a.m. in Room 242 at the Ernest N. Morial Convention Center. The research team previously demonstrated that glucose tolerance and fasting blood glucose levels in diabetic mice were improved when the pancreas overproduced Angiotensin-converting enzyme (ACE) 2. They hypothesized that the ...

Oral contraceptives impair muscle gains in young women

... before and after the training and assessed to measure anabolic (muscle building) and catabolic (muscle breaking) hormone levels in blood. Resting and fasting blood concentrations were measured for three anabolic hormones: DHEA, DHEAS and IGF1. Findings The researchers found that: there were ...

Oral contraceptives impair muscle gains in young women

... before and after the training and assessed to measure anabolic (muscle building) and catabolic (muscle breaking) hormone levels in blood. Resting and fasting blood concentrations were measured for three anabolic hormones: DHEA, DHEAS and IGF1. Findings The researchers found that: there were ...

American Chemical Society's Weekly PressPac -- Jan. 7, 2009

... perhaps in a class of its own." JS ARTICLE #4 FOR IMMEDIATE RELEASE "Salicylic Acid sans Aspirin in Animals and Man: Persistence in fasting and Biosynthesis from Benzoic Acid" DOWNLOAD FULL TEXT ARTICLE http://pubs.acs.org/stoken/presspac/presspac/full/10.1021/jf800974z CONTACT: ...

Disabling enzyme allows mice to gorge without becoming obese, new study finds

... and leptin weighed just under 35 grams. The researchers found that levels of AdPLA increase after eating to block fat breakdown, and decrease with fasting to allow fat breakdown to proceed efficiently. They also found that levels of AdPLA are higher in obese mice. "This means that local signals in ...

A new weapon in the fight against obesity and diabetes

... of 100 to 500 mg/kg/day. Mice on a high-fat diet treated with the higher drug dose did not become obese, and their triglyceride, cholesterol, fasting blood glucose and insulin levels were all reduced. Furthermore, they were able to run approximately twice the distance as control animals in an ...

Bayhill Therapeutics and the Juvenile Diabetes Research Foundation announce research collaboration

... ≤5 years since T1D was diagnosed, ≥ 18 years of age, ≤ 40 years of age at the time of diagnosis of Type 1 diabetes, detectable fasting C-peptide level, C-peptide increase during screening mixed meal tolerance test, and presence of antibodies to at least one beta cell antigen ...

Researchers note differences between people and animals on calorie restriction

... IGF-1 (insulin-like growth factor-1), which is produced primarily in the liver. Production is stimulated by growth hormone and can be reduced by fasting or by insensitivity to growth hormone. In calorie-restricted animals, levels of circulating IGF-1 decline between 30 percent and 40 percent. "We ...

New master switch found in the brain that regulates appetite and reproduction

... years of research, they have uncovered a family of genes that act as energy switches, turning other genes on or off. One gene, TORC2, acts like a fasting switch that flips on the production of glucose in the liver when blood glucose levels run low, usually during sleep. During the day, the hormone ...

Limiting fructose may boost weight loss, UT Southwestern researcher reports

... more likely to be stored than burned. "This is an underestimate of the effect of fructose because these individuals consumed the drinks while fasting and because the subjects were healthy, lean and could presumably process the fructose pretty quickly. Fat synthesis from sugars may be worse in ...

Growth hormone's link to starvation may be clue to increasing life span, researchers find

... Interfering with the actions of growth hormone has been shown to increase life span in mice, Dr. Kliewer said. "In addition, intermittent fasting which increases FGF21 concentrations also extends life span in mice. This raises the intriguing possibility that FGF21 might be a longevity ...

People with diabetes may have all natural citrus supplement

... complications and associated medications and certainly less stress for the patient. Although there were no statistically significant changes in fasting blood glucose levels in either group, the Diabetinol-treated subjects demonstrated an excellent favorable downward trend in their hemoglobin A1C ...

New study finds anticipating a laugh reduces our stress hormones

... they proposed that the anticipation of a laughter event might reduce stress hormones. To test their theory they studied 16 healthy fasting male volunteers for cortisol and catecholamine level changes. The participants were assigned to either the control group or the experiment group ...

Testosterone replacement theraphy beneficial in men 60 and older

... (DEXA) scan at the beginning and end of the study. Dietary records were obtained and analyzed at month zero, month three and month five. fasting blood samples were collected at regular intervals throughout the study to examine serum markers of bone metabolism. The Preliminary Study ...

Attacks of King George III's madness linked to key metabolism molecule

... his tumultuous reign, can be brought on by fasting and exposure to certain drugs, and is ... have provided "a clear-cut mechanism" linking fasting to an increase in PGC-1 alpha, and, in turn, ... for affected patients as it make them gain, and fasting in order to lose the weight risks provoking ...

Blood sugar's manufacture limited by building blocks' supply

... evidence that defective amino acid breakdown promotes the development of fasting hypoglycemia in the mutant animals by limiting the availability of a ... injection of pyruvate, but not alanine, rescued the mice from their fasting hypoglycemia. The findings point to a novel form of control over ...

Herbal medicine silymarin may help sugar-control in people with type II diabetes

... the amount of sugar bound to haemoglobin in blood, as well as reducing fasting blood sugar levels. Silymarin contains a number of active ... beginning of the trial, the treatment group had a significant reduction in fasting blood glucose levels (p "The results are very encouraging, and we now ...

Thinner and younger

... that six months of calorie restriction reduces two key markers of aging: fasting insulin levels and body temperature. More than a decade ago several ... fat. But those on a calorie restriction diet ended the study with lower fasting insulin levels and lower core body temperatures. They also had less ...

How appetite-stimulating brain cells work overtime during fasting

... during fasting," Diano's group concluded. "Overall, our study provides strong evidence for an interplay between local T3 production and UCP2 during fasting and reveals a central thermogenic-like mechanism in the regulation of food intake." While it is as yet unproven, the rise in UCP2 in the brain ...

Phthalates now linked to fat, related health risks

... available. Of the adult men available in NHANES, 1,451 had data on phthalate exposures, obesity and waist circumference. Of these men, 651 also had fasting glucose and insulin levels required to calculate insulin resistance. The analysis found that, as expected, several phthalate metabolites showed ...

Walking not enough for significant exercise benefits

... 10 per cent for the traditional fitness group, compared to four per cent for the group who just walked. Other markers of overall health, such as fasting plasma glucose levels, response to a two-hour glucose tolerance test and various blood lipids were unaffected by either exercise program. "Our ...

High estrogen levels associated with dementia in older men

... men aged 70 to 91 who participated in the Honolulu-Asia Aging Study. Participants showed no signs of dementia at baseline in 1991-1993, at which time fasting blood samples were drawn. The researchers measured the levels of testosterone and estradiol, the major estrogen in humans, in the samples and the men ...

Chewing up a key regulator of fat synthesis keeps mice lean despite a high-fat diet

... when ACC should be turned off. Heredia and co-first author Ling Qi, Ph.D., reasoned that keeping the TRB3 pathway artificially "on" during both fasting and feeding might melt away fat depots. And that's exactly what happened. Mice genetically engineered to express permanently elevated levels of ...

One-third of adults with diabetes still don't know they have it

... and a major cause of heart disease and stroke. Over the years studied, about 26 percent of adults age 20 and older continued to have impaired fasting glucose (IFG), a form of pre-diabetes. IFG, in which blood glucose measured after an overnight fast is high but not yet diagnostic of diabetes, ...

Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent

... disease-prevention and most certainly stress-reduction," he noted. In the current experiment, Berk and his colleagues studied 16 healthy and fasting males, who hadn't exercised for at least a day and were not taking supplement medications. The test subjects had chosen a favorite video. Three days ...

Hap1 protein links circulating insulin to brain circuits that regulate feeding behavior in mice

... the Burnham Institute for Medical Research, and the University of California, San Diego, conducted a series of experiments in mice. They found that fasting increased the level of Hap1 in the hypothalamus of the mice and that administering insulin decreased the Hap1 level. Suppressing Hap1 expression ...

Phenolic compounds may explain Mediterranean diet benefits

... shows a direct benefit of an olive oil with high content in phenolic compounds on endothelial function in vivo," Dr. Pérez Jiménez said. After fasting overnight, the participants reported to the hospital, where they ate a breakfast of 60 grams of white bread with 40 milliliters of virgin olive oil, ...

Insulin pulses keep the liver lean

... mechanism fails in obese mice and mice with persistently high levels of insulin, the researchers also found. The findings suggest that periods of fasting between meals play a critical role in maintaining a lean and healthy liver by allowing insulin levels to rise and fall, said study lead author Sonia ...