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.

New book on aging

Aging is a natural part of life. From the minute we are born we are heading in one certain direction: towards death. That said, it is possible to arrive at that ultimate destination graceful and vital to our last days rather than chronically ill suffering from one or many debilitating illnesses.

25 Apr 2011

Amylin's new metreleptin data in lipodystrophy to be presented at AACE meeting

Amylin Pharmaceuticals, Inc. today announced results from a new analysis of an ongoing, long-term research study of the investigational drug metreleptin, an analog of the human hormone leptin, for the treatment of lipodystrophy.

16 Apr 2011

TZDs might serve as new agents for addiction treatment

Thiazolidinediones are a class of medications that are commonly prescribed to treat type-2 diabetes, while fibrates are a structurally-related class of medications that are prescribed to modulate lipid levels in both diabetic and non-diabetic patients to help reduce the risk of cardiovascular disease.

6 Apr 2011

Huntingtin protein is responsible for metabolic imbalances in hypothalamus

In Huntington's disease, the mutant protein known as huntingtin leads to the degeneration of a part of the brain known as the basal ganglia, causing the motor disturbances that represent one of the most defining features of the fatal disease.

6 Apr 2011

Klotho protein discovery can lead to new class of drugs for treatment of obesity

An important discovery in mice may make a big difference in people's waistlines thanks to a team of Harvard scientists who found that reducing the function of a transmembrane protein, called Klotho, in obese mice with high blood sugar levels produced lean mice with reduced blood sugar levels.

8 Mar 2011

Scientists discover signaling pathway in brain to induce cellular leptin resistance

Researchers at UT Southwestern Medical Center have identified a signaling pathway in the brain that's sufficient to induce cellular leptin resistance, a problem that decreases the body's ability to "hear" that it is full and should stop eating.

2 Mar 2011

Leptin receptor antagonist peptide demonstrates efficacy against triple negative breast cancer

A new peptide developed by researchers in Temple University's College of Science and Technology has demonstrated efficacy against triple negative breast cancer.

1 Mar 2011

Maternal fructose intake during pregnancy leads to sex-specific changes in fetal, neonatal endocrinology

A recent study accepted for publication in Endocrinology, a publication of The Endocrine Society, reports for the first time that maternal fructose intake during pregnancy results in sex-specific changes in fetal and neonatal endocrinology.

25 Feb 2011

Study: Leptin resistance may help prevent ARDS, ALI development in patients with type II diabetes

Resistance to leptin, a protein that plays a key role in regulating metabolism and appetite, may help prevent the development of acute respiratory distress syndrome and acute lung injury in individuals with type II diabetes, according to a study conducted by researchers in Chicago.

13 Feb 2011

Lack of sleep increases stroke & heart disease risk: Study

New research shows that lack of sleep apparently can increase the risk for stroke and heart attack. British researchers for this study, analyzed data collected from more than 470,000 people in eight countries, including the United States. The study was published Feb. 8 in the European Heart Journal.

13 Feb 2011

Mothers who lose body fat before pregnancy improve health of children

Obesity among women of childbearing age is increasing worldwide. Because babies of obese mothers are themselves predisposed to obesity, society can reasonably expect the epidemic of obese and overweight people to continue through future generations.

3 Feb 2011

Lifestyle more closely linked with childhood obesity, than genetics

Are some children genetically tuned to be overweight, or is lifestyle to blame for childhood obesity?

1 Feb 2011

New molecular player responsible for regulation of appetite and metabolism

A study by researchers at Mayo Clinic's campus in Florida and Washington University School of Medicine adds a new twist to the body of evidence suggesting human obesity is due in part to genetic factors. While studying hormone receptors in laboratory mice, neuroscientists identified a new molecular player responsible for the regulation of appetite and metabolism.

28 Jan 2011

Appetite hormones influence 'yo-yo' effect of slimming diets

If you want to lose the kilos you've put on over Christmas, you may be interested in knowing that the hormones related to appetite play an important role in your likelihood of regaining weight after dieting. A new study confirms that people with the highest levels of leptin and lowest levels of ghrelin are more likely to put the centimetres they lost back on again.

13 Jan 2011

Lipoprotein receptor LRP1 also regulates food intake and energy balance in central nervous system: Study

12 Jan 2011

Metabolic cost of missing one night of sleep equivalent to walking two miles

In the first-ever quantification of energy expended by humans during sleep, a University of Colorado team has found that the metabolic cost of an adult missing one night of sleep is the equivalent of walking slightly less than two miles.

5 Jan 2011

Scientists pinpoint brain site where leptin hormone may trigger onset of puberty

UT Southwestern Medical Center researchers have pinpointed a tiny site in the brain where the hormone leptin may help trigger the onset of puberty.

23 Dec 2010

Later onset of puberty associated with malnutrition, earlier onset to childhood obesity

The timing of the onset of puberty is linked to levels of nutrition: later onset is associated with malnutrition, while earlier onset is linked to childhood obesity. A team of researchers, led by Carol Elias, at the University of Texas Southwestern Medical Center, Dallas, has now generated data in mice that run counter to current thinking about the molecular pathway by which nutrition status affects the onset of puberty. Further, the team defines a new regulatory pathway for the process, which, if confirmed in humans, could potentially lead to new approaches to treating disorders of puberty and fertility.

23 Dec 2010

Amylin submits metreleptin rolling submission BLA for treatment of rare forms of lipodystrophy

Amylin Pharmaceuticals, Inc. today announced that it has submitted the initial sections of a rolling submission for a Biologics License Application (BLA) to the U.S. Food and Drug Administration (FDA) for the use of metreleptin to treat diabetes and/or hypertriglyceridemia (high levels of triglycerides in the bloodstream) in patients with rare forms of lipodystrophy.

21 Dec 2010

Idera presents data on TLR7, TLR9 antagonist candidate for hyperlipidemia at American Heart Association

Idera Pharmaceuticals, Inc. announced today that it is presenting preclinical data from a study evaluating the mechanism of action of one of its Toll-like receptor (TLR) 7 and TLR9 antagonist candidates in a model of hyperlipidemia.

18 Nov 2010