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Latest Arcuate nucleus Stories

2012-01-26 02:08:43

New research reveals a fascinating and unexpected molecular partnership within the brain neurons that regulate appetite. The study, published by Cell Press in the January 26 issue of the journal Neuron, resolves a paradox regarding a receptor without its hormone and may lead to more specific therapeutic interventions for obesity and disorders of dopamine signaling. Ghrelin is an appetite-stimulating hormone produced by the stomach. Although the ghrelin receptor (GHSR1a) is broadly...

2011-07-14 07:14:44

(Ivanhoe Newswire)--For some time scientists have known the hormone leptin has acted in the brain to prevent obesity, but the mystery remains as to whether or not this is a natural weight loss treatment. Leptin has been described as our starvation hormone. It tells your brain when you have stored enough energy in your fat cells to engage in normal metabolic processes. Senior study author Dr. Bradford B. Lowell from Beth Israel Deaconess Medical Center and Harvard Medical School was quoted...

2011-07-13 23:31:09

Scientists have known for some time that the hormone leptin acts in the brain to prevent obesity, but the specific underlying neurocircuitry has remained a mystery. Now, new research published by Cell Press in the July 14 issue of the journal Neuron reveals neurobiological mechanisms that may underlie the antiobesity effects of leptin. "Leptin is a hormone that is secreted by fat cells and acts at its receptor in the brain to decrease food intake and promote energy expenditure," explains...

2009-08-05 11:32:59

As we all know from experience, people eat not only because they are hungry, but also because the food just simply tastes too good to pass up. Now, a new study in the August 6th Cell Metabolism, a Cell Press publication, helps to explain how leptin, a hormone produced by fat tissue, influences that motivation to eat.The researchers describe for the first time a new bunch of leptin-responsive (LepRb) neurons in the brain's lateral hypothalamic area (LHA). Those LHA neurons feed directly into...

2009-06-02 14:32:22

 In investigating the complex neurocircuitry behind weight gain and glucose control, scientists have known that the hormone leptin plays a key role in the process. But within the myriad twists and turns of the brain's intricate landscape, the exact pathways that the hormone travels to exert its influence have remained a mystery.Now, a study led by investigators at Beth Israel Deaconess Medical Center (BIDMC) sheds further light on the subject. Reported in tomorrow's issue of the journal...

2009-06-02 14:26:54

Mice lacking the fat hormone leptin or the ability to respond to it become morbidly obese and severely diabetic"”not to mention downright sluggish. Now, a new study in the June Cell Metabolism shows that blood sugar control in those animals can be completely restored by returning leptin sensitivity to a single class of neurons in the brain, which account for only a small fraction of those that normally carry the hormone receptors."Just the receptors in this little group of neurons are...


Word of the Day
reremouse
  • A bat.
The word 'reremouse' comes from Middle English reremous, from Old English hrēremūs, hrērmūs ("bat"), equivalent to rear (“to move, shake, stir”) +‎ mouse.
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