Obesity News and Research

Latest Obesity News and Research

Radioactive carbon-14 determines the number of fat cells remains constant in all body types

The radioactive carbon-14 produced by above-ground nuclear testing in the 1950s and '60s has helped researchers determine that the number of fat cells in a human's body, whether lean or obese, is established during the teenage years. Changes in fat mass in adulthood can be attributed mainly to changes in fat cell volume, not an increase in the actual number of fat cells.

9 May 2008

Outcomes of obese and nonobese patients undergoing revision total hip arthroplasty

Along with age and injuries, obesity is a leading risk factor for osteoarthritis (OA), a painful and disabling joint disease. While excessive weight can aggravate the toll on almost any joint, obesity has been associated with a higher prevalence of hip OA and an increase in total hip arthroplasty (THA).

8 May 2008

Mothers' high normal blood sugar levels place infants at risk for birth problems

Pregnant women with blood sugar levels in the higher range of normal - but not high enough to be considered diabetes - are more likely than women with lower blood sugar levels to give birth to babies at risk for many of the same problems seen in babies born to women with diabetes during pregnancy, according to a study funded in large part by the National Institutes of Health.

8 May 2008

Study suggests caution on a new anti-obesity drug in children

A new class of anti-obesity drugs that suppresses appetite by blocking cannabinoid receptors in the brain could also suppress the adaptive rewiring of the brain necessary for neural development in children, studies with mice have indicated.

7 May 2008

Obesity may increase adults' risk for having dementia

Their analysis of published obesity and dementia prospective follow-up studies over the past two decades shows a consistent relationship between the two diseases. The results are published by The International Association for the Study of Obesity in the May, 2008 issue of Obesity Reviews.

7 May 2008

Obesity can increase dementia risk by up to 80 per cent - people who are underweight also face an elevated risk

Being obese can increase the risk of Alzheimer's Disease by as much as 80 per cent, according to a study in the May issue of the UK-based journal Obesity Reviews.

7 May 2008

Gut hormone makes food appear more desirable

A gut hormone that causes people to eat more does so by making food appear more desirable, suggests a new report in the May issue of Cell Metabolism, a publication of Cell Press. In a brain imaging study of individuals, the researchers found that reward centers respond more strongly to pictures of food in subjects who had received an infusion of the hormone known as ghrelin.

6 May 2008

Joslin researchers find certain body fat reduces insulin resistance

It has long been known that type 2 diabetes is linked to obesity, particularly fat inside the belly. Now, researchers at the Joslin Diabetes Center have found that fat from other areas of the body can actually reduce insulin resistance and improve insulin sensitivity.

6 May 2008

Gene sequence that can make half of us fatter is discovered

A gene sequence linked to an expanding waist line, weight gain and a tendency to develop type 2 diabetes has been discovered as part of a study published today in the journal Nature Genetics.

6 May 2008

New understanding of colon tumor development

Recent work from the Finnish Academy Center of Excellence on Cancer Biology at the University of Helsinki, Finland, has shed light on the mechanisms of colon tumor development and may help to design better treatment for this disease.

5 May 2008

Strange barriers to physical activity may exist at child-care centers

At a time when over half of US children (aged 3-6) are in child care centers, and growing concern over childhood obesity has led physicians to focus on whether children are getting enough physical activity, a new study of outdoor physical activity at child care centers, conducted by researchers at Cincinnati Children's Hospital Medical Center, has identified some surprising reasons why the kids may be staying inside.

5 May 2008

Fat cell numbers in your teens set you up for life

When it comes to changing your fate as far as fat is concerned the jury is still out on that particular case.

5 May 2008

Doctors call for taxes on junk food and subsidised fruit and veggies

The Australian Medical Association (AMA) is calling for taxes on junk food and sugary drinks and subsidised fruit and vegetables to beat the obesity epidemic.

5 May 2008

It's official - there's a rogue fat gene!

Scientists from Oxford and Cambridge say in their second discovery they have found new genetic variants that influence fat mass, weight and risk of obesity and increase the chances of being fat, which may explain why some people are always battling with their weight.

5 May 2008

Harmful blood glucose levels linked to genetic mutation

A genetic mutation that can raise the amount of glucose in a person's blood to harmful levels is identified today in a study in the journal Science.

1 May 2008

Poor nighttime sleep associated with daytime napping in older adults

Deficiencies in nighttime sleep are associated with daytime napping in older adults, according to a study published in the May 1 issue of the journal SLEEP.

1 May 2008

Obesity and heart failure risk

Heart specialists at Johns Hopkins and elsewhere report what is believed to be the first wide-scale evidence linking severe overweight to prolonged inflammation of heart tissue and the subsequent damage leading to failure of the body's blood-pumping organ.

1 May 2008

Obesity can worsen the impact of asthma

Obesity can worsen the impact of asthma and may also mask its severity in standard tests, according to researchers in New Zealand, who studied lung function in asthmatic women with a range of body mass indexes (BMIs).

1 May 2008

Trends in heart mortality reversing in younger women

Coronary heart disease mortality in younger women could be on the rise, according to findings in the open access journal, BMC Public Health, published by BioMed Central. High levels of smoking, increasing obesity and a lack of exercise could all be contributing to this disturbing trend, seen in women under the age of 50.

30 Apr 2008

Better-educated women have healthier average weight

A new comparison of multi-national data, released this month, reveals that highly educated women have a healthier average weight than less educated women, but that the meaning of "healthier" changes according to a nation's relative wealth. In countries where malnutrition is prevalent, better-educated women weigh more. But in wealthier countries - with rapidly growing rates of obesity - better-educated women weigh less.

30 Apr 2008