June 8, 2011

Another Myth Put to Rest?

1 Yo-Yo Dieting Not As Unhealthy As Obesity

Yo-yo dieting, the cycle of repeatedly losing and gaining weight, is commonly thought to be unhealthy although “there is little hard scientific evidence to support that," says Edward List, PhD, Ohio U. List, lead investigator of a study that compared yo-yo dieting with lifelong obesity in mice, concludes that while it’s best to remain on a stable, healthy diet for wellness and longevity, yo-yo dieting is better for a body, despite its inherent weight fluctuations, than remaining obese. List separated 30 mice into 3 groups. The groups were fed either a high fat diet; low fat diet or a “yo-yo diet” that resulted in large weight fluctuations. The mice on the yo-yo diet had a similar life span to that of the low-fat-fed group. Both lived 35% longer than the obese mice.

More at Eurekalert.org | Posted 6 years ago by Melody Lesser

Previously: Yo-Yo Dieting Ultimately Leads to Weight Gain

Tags: Longevity, Obesity, Weight Gain, Weight Loss, Yo-Yo Dieting, Weight Fluctuations, Edward List, Ohio University

Comment on This | Was this Interesting? Yes! (46%) / No! (54%)

Bear Exits Through Back Window

2 Bear Becomes 300-Pound Bullet, Killing Two

Two people and a male black bear are dead in Quebec after the bear was hit by an eastbound car, sending it airborne into a westbound SUV, killing the driver and back seat passenger as it exited through the back window. CNN reports that the 300-pound bear was hit by a Pontiac Sunfire, but the driver and passenger of that car were unhurt. Officer Martin Fournel said that the bear acted like a "300-pound bullet." Inside the Nissan Pathfinder, a 35-year-old female driver and 40-year-old man were killed, while the 28-year-old passenger sitting in the front seat survived with minor injuries. Police believe that no alcohol or drugs were involved. CNN reports that police have yet to determine the speeds of the vehicles involved, but charges are unlikely.

More at CNN | Posted 6 years ago by Peggy Rowland

Previously: Fugitive Wanted to Be Bear Food

Tags: Black Bear Accidents, Auto Accidents with Wildlife, Black Bear Mating Season, Dangers of Living Around Bears

Comment on This | Was this Interesting? Yes! (50%) / No! (50%)

Inflammation in Brain

3 High Fat Diet May Injure Brain Cells

A high-fat diet may not contribute to obesity only by providing excess calories. A new study from the University of Washington finds that overconsumption of the “Typical American Diet” may also involve injury to nerve cells in a key part of the brain the controls body weight. Researchers studied rats and mice given high fat diets for periods ranging from one day to eight months. Within the first three days of the diet, rats consumed nearly double their usual daily amount of calories, gained weight, and developed inflammation in the hypothalamus, the part of the brain involved with appetite and body weight. While there was a period of time where the brain appeared to heal itself, that protective response failed over time, leading to damage and loss of critical weight-regulating neurons.

More at EurekAlert | Posted 6 years ago by Denise Reynolds

Previously: Mothers High Fat Diet Increases Birth Defect Risk

Tags: Brain, Brain Damage, High Fat, High-Fat Diet, Inflammation, Obesity

Read the Comments (1) | Was this Interesting? Yes! (42%) / No! (58%)

Basis of Many Chemo Regimens

4 Several Cancer Drugs in Short Supply

Many cancer drugs are in short supply due to various manufacturing problems or simply because it is no longer profitable to produce generics. The generic versions of cisplatin, doxorubicin, cytarabine and leucovorin, the basis of many chemotherapy regimens in the fight against various solid tumors and blood cancers, are the most affected. The drug leucovorin works by increasing the effectiveness of other anticancer drugs and does not have a substitute which may affect a patient’s response to treatment. Some doctors are switching the order the drugs are given or delaying treatment while waiting for a drug to become available. Doctors are extremely concerned and senators from two states want to pass a law requiring drug companies to report any production changes to the FDA.

More at Yahoo! Reuters | Posted 6 years ago by Kristie Hayes

Previously: Drug Shortages Have Hospitals Scrambling, Parents Can't Find Adderall, Ritalin for ADHD

Tags: Cisplatin, Doxorubicin, Drug Companies, FDA, National Drug Shortage, Problems in Drug Development and Manufacturing, Cancer Drug Shortage, Cancer Drugs in Short Supply, Cytarabine, Leucovorin

Comment on This | Was this Interesting? Yes! (48%) / No! (52%)

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