Resistance To Leptin Contributes To Obesity
...sity in mice according to the firstformal study of leptin intolerance, report scientists in the Aug. 5Procee... Ournew research directly shows that resistance to leptin can cause obesity,"explains senior author Jeffrey Friedman, M.D., Ph.D., professor at TheRockefeller...Human Breast Milk Contains Obesity Hormone
...am. The research also found that the amount of leptin in the breast milk correlates with the amount of b... amounts of leptin, thin mothers produce almost no leptin in their breast milk. The study was published in the current issue of the scientific journal Biochem...Regulator Of Fat Thermostat Found
... year that obesepeople already have high levels of leptin in their blood. This finding suggestedthat overwei...fied the first factor to significantly boost human leptin concentrations.And surprisingly, this substance also boosted leptin levels in some overweightindivid...Obesity Gene: Possible Link To Heart Disease Risk
... has eaten enough food to feel full. Theamount of leptin in the blood has been directly linked to body fat. This study is the first to associate leptin elevations in the blood withso-called insulin resistance syndrome. The syndrome -- characterized by...Data Support Idea That Zinc Plays Key Role In Fight Against Anorexia
...(NPY) production in rats' brains and a decrease in leptin concentrations in their bloodstream. "Very likel... found that when zinc deficiency occurs, stores of leptin decline significantly in rats. Similar unpublished work on humans, reported by Shay at Experimental ......ished in the Sept. 11 issue of the journalScience, leptin also triggers the formation of new vessels in fat ...vessels, a locationnever suspected to be a site of leptin action," said Flores-Riveros, a researchdirector at IPD and previously a scientist in the Bayer Rese...Leptin Regulates Hunger During Energy Deficit In Women
...kground: On the basis of observations in rodents, leptin is thought to play a key role in the regulation of...ect in women of a chronic energy deficit on plasma leptin concentrations and self-reported appetite and explored possible relations between leptin and appetit...Researchers Externally Regulate Gene Implanted In Brain
...nefor long periods of time in the brain area where leptin is produced," McCownsays. "This means we should be able to produce leptin in that part of the brainthat regulates body weight and observe changes in weight by regulating theg...New Discovery Is Potential Key To Obesity Treatment
...e obese humans. A number of other genes such as leptin appear to be related to obesity. However, now that the mechanism of action of purified AGRP is known, Amgenresearchers think it reveals another potential point of attack for ananti-obesitydrug. The challenge will be designing a drug that prevents ...Method May Be Key In Combating Diarrhea In Animals And Children
...bed a layered structure of the virus and suspected leptin activity thatmay be required for assembly of new viruses ininfected cells. "We believe this activity, which nobody has seen before, is either involved inthe entry of the virus into the host intestinalcell, or in holding the virus together," Mark Kuhl...UF researchers explore gene therapy to treat obesity
...ty in most obese peopleso that even high levels of leptin fail to turn off the hunger signal. "The c...d other appetite-stimulating signals by increasing leptin levels, it ispossible to control body weight," said Kalra, who also is affiliated with UF'sGene Ther...Obesity gene controls bone density via brain pathway
...e of maintaining bone mass. Identification of the leptin pathway, where the brain acts as the central compo...roup could make leptin, but was unable to make the leptin receptor normally present in the hypothalamus. Both strains of mice were obese, but were also obser......in five adults suffer from obesity. Studies on how leptin works to control body weight could provide therape...o stop eating and to burn more fat. Mice that lack leptin are obese, weighing nearly three times more than their normal counterparts. When these obese mice ar...Two major U.S. dietary patterns result in different obesity and cardiovascular risk factors
...ile of the Western diet, insulin, homocysteine and leptin were 18%, 9% and 16% higher, and folate was 8% low...terparts. They also had higher levels of insulin, leptin and c-peptides, all biomarkers strongly associated with obesity and diabetes mellitus. High consumer...Researchers light the path of brain's feeding circuit in mice
...lating food intake and that respond to the hormone leptin also receive inputs from neurons in a number of ot...ased amount of fat leads to the production of more leptin and a decreased amount of fat leads to a decreased amount of leptin. An increase or decrease in the ...Leptin may hold key to better weight loss
...he loss of fat decreases the amount of the hormone leptin in the body. Leptin, a hormone mostly manufactured...ht was being lost. "By preventing the decrease in leptin levels that normally occurs with weight loss, we theorized that sibutramine would be able to have a ...'Night eating syndrome' may be related to the performance of the body -- not the mind
...nal rise of plasma concentrations of melatonin and leptin and an increased circadian secretion of the steroid hormone, cortisol. Cortisol, melatonin, and leptin are regulatory hormones with typical circadian rhythms that regulate various physiological and metab...Forging a link between brain and bone
The adipose-derived hormone leptin is well known for its influence on feeding behavior. Animals with genetic defects in leptin signaling become obese when supplied unlimited food. However, even when food supply is limited to pr...Leptin linked to obesity and blood clots
...f the American Medical Association, indicates that leptin may be responsible. Our results suggest that clot ...ation begins with some type of interaction between leptin and the leptin receptor on platelets blood cells which stick together to make clots, says Daniel T.......arsh, Stanford University New developments in leptin neurobiology - Joel Elmquist, Harvard Medical Scho...iversity of California San Francisco Role of leptin in obesity associated hypertension William G. Haynes, University of Iowa College Medicine Mec...