Leptin News and Research

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Leptin is a 16 kDa protein hormone that plays a key role in regulating energy intake and energy expenditure, including appetite and metabolism. It is one of the most important adipose derived hormones. The ''Ob(Lep)'' gene (Ob for obese, Lep for leptin) is located on chromosome 7 in humans.

Yo-yo dieting can affect appetite hormones for up to a year

A new study suggests that the ‘yo-yo’ effect that dieters experience of shedding pounds and gaining them back may be due to the persistence of hormones that drive the urge to eat even a year after weight loss.

27 Oct 2011

Short sleep duration linked to weight gain in teens

Sleeping less than 8 hours a night may be linked to weight gain in teens, shows a new study presented at CHEST 2011, the 77th annual meeting of the American College of Chest Physicians.

24 Oct 2011

Study links leptin levels with symptoms of depression, anxiety

A new study has for the first time in humans linked levels of leptin, a hormone produced by fat cells, with symptoms of depression and anxiety independent of weight.

21 Oct 2011

Scientists reveal how resistance to hormone leptin develops

The effects of obesity - both on our bodies and on the health budget - are well known, and now, scientists are getting closer to understanding how the disease progresses, providing clues for future treatments.

15 Oct 2011

EMBO, EMBC and Singapore sign cooperation agreement

Scientists in Singapore and Europe will have new avenues for scientific interaction, following a cooperation agreement between EMBO, its intergovernmental funding body, EMBC, and the government of Singapore.

14 Oct 2011

Elevating free radical levels suppresses appetite in obese mice

Obesity is growing at alarming rates worldwide, and the biggest culprit is overeating. In a study of brain circuits that control hunger and satiety, Yale School of Medicine researchers have found that molecular mechanisms controlling free radicals-molecules tied to aging and tissue damage-are at the heart of increased appetite in diet-induced obesity.

29 Aug 2011

Researchers identify five SNPs linked with aggressive, lethal prostate cancer

An international team of researchers led by Fred Hutchinson Cancer Research Center has identified five inherited genetic variants that are strongly associated with aggressive, lethal prostate cancer.

17 Aug 2011

Study suggests link between pre-pregnancy obesity and asthma symptoms in teen children

Mums who are overweight or obese when they become pregnant may be programming their children to have asthma-like respiratory symptoms during adolescence, suggests research published online in the Journal of Epidemiology and Community Health.

16 Aug 2011

Takeda, Amylin discontinue pramlintide/metreleptin development program for obesity

Amylin Pharmaceuticals, Inc. and Takeda Pharmaceutical Company Limited today announced that they are discontinuing development of pramlintide/metreleptin, an investigational combination therapy for the treatment of obesity that comprises pramlintide, an analog of the natural hormone amylin, and metreleptin, an analog of the natural hormone leptin.

5 Aug 2011

Both body and brain mechanisms are involved in effects of exercise to modulate food intake

Research to be presented at the upcoming annual meeting of the Society for the Study of Ingestive Behavior (SSIB), the foremost society for research into all aspects of eating and drinking behavior, finds that alterations of meal-related gut hormone signals may contribute to the overall effects of exercise to help manage body weight.

13 Jul 2011

Molasses supplementation may reduce obesity in humans

Experimental results to be presented at the upcoming annual meeting of the Society for the Study of Ingestive Behavior (SSIB), the foremost society for research into all aspects of eating and drinking behavior, suggests that dietary supplementation with molasses extract may provide a novel approach for weight management in humans.

12 Jul 2011

New data from Zafgen's ZGN-433 Phase 1b study on obesity presented at ADA 2011

Zafgen, Inc., a pharmaceutical company pioneering novel obesity therapeutics to help the body regain and sustain a lean, healthy state by targeting imbalances in fat metabolism, today announced new data from a Phase 1b study of ZGN-433, a selective methionine aminopeptidase 2 inhibitor (MetAP2), which showed a significant improvement in cardiovascular risk markers in severely obese subjects.

27 Jun 2011

Scientists find altering hormone levels change cellular development in brain

In a study that increases the understanding of the link between fetal development and obesity later in life, researchers at Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center (LA BioMed) found altering the levels of two common hormones, insulin and leptin, in utero changes the cellular development in the region of the brain that regulates appetite.

23 Jun 2011

Researchers identify nine blood proteins that alter with age

Loss of muscle mass is not only associated with disease, such as HIV and cancer, but also with the normal aging process. Anabolic steroids are sometimes used to reverse loss of lean muscle tissue but they can have unwanted side effects.

20 Jun 2011

Turning back the clock on aging stem cells to make better bone

Researchers want to turn back the clock on aging stem cells so they'll make better bone.

10 Jun 2011

Women with higher leptin levels have fewer symptoms of depression

Women who have higher levels of the appetite-controlling hormone leptin have fewer symptoms of depression, and this apparent inverse relationship is not related to body mass index (BMI), a new study finds.

7 Jun 2011

Moderate consumption of desserts with low glycemic index and glycemic load may help treat pediatric obesity

Overweight girls lose more weight and can better stay on a healthy diet if they eat sugar-free, low-fat desserts several times weekly, as opposed to any dessert once a week, a new study finds. The results will be reported Monday at The Endocrine Society's 93rd Annual Meeting in Boston.

7 Jun 2011

Amylin's metreleptin clinical study data on partial lipodystrophy presented at ENDO 2011

Amylin Pharmaceuticals, Inc. today announced results from a study that showed treatment with metreleptin, an investigational treatment that is an analog of the human hormone leptin, improved diabetes and lipid control in patients with partial lipodystrophy.

6 Jun 2011

Amylin, JDRF collaborate to investigate combination therapy for type 1 diabetes treatment

The Juvenile Diabetes Research Foundation and Amylin Pharmaceuticals, Inc. announced today that they have entered into a research collaboration agreement to provide financial support for a series of clinical studies to investigate the feasibility of mixing pramlintide, an analog of the human hormone amylin, with insulin to treat type 1 diabetes.

11 May 2011

Harvard Medical School and BIDMC professor delivered Solomon A. Berson Distinguished Lectureship

Christos Mantzoros, MD, DSc, Professor of Medicine at Harvard Medical School and Beth Israel Deaconess Medical Center, delivered the Solomon A. Berson Distinguished Lectureship at the annual meeting of the Federation of American Societies for Experimental Biology held earlier this month in Washington, DC.

30 Apr 2011