Neuropeptide News and Research

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Melanin concentrating hormone found to be involved with insulin production

A new Joslin Diabetes Center-led study has shown conclusively that a neuropeptide, melanin concentrating hormone (MCH), found in the brain and known for its role in increasing appetite in people, plays a role in the growth of insulin-producing beta cells and the secretion of insulin.

28 Jan 2007

New research on brain, hormones and behavior

New clinical and basic science research findings focusing on the interaction between hormones and the brain and its influence on behavior will be presented for the first time at the 6th International Congress of Neuroendocrinology.

6 Jun 2006

A hormone receptor with regulatory roles in food intake, fear response, and cardiovascular function may also be involved in breast cancer

The UC research team, led by Hassane Amlal, PhD, and Sulaiman Sheriff, PhD, report their laboratory findings on the hormone, neuropeptide Y, and its receptor in the April edition of the journal Cancer Research.

13 Apr 2006

Orexin's role in developing addiction

A molecule in the brain essential for wakefulness and appetite has been found to play a central role in strengthening the neuron connections that lead to addiction.

17 Feb 2006

Sydney researchers explain how stress makes you sick

Garvan Institute scientists have discovered how a hormone, known as neuropeptide Y (NPY), can prevent our immune system functioning properly, paving the way for two new major opportunities for therapeutic intervention.

10 Jan 2006

Garvan scientists explain stress and sickness

7 Dec 2005

Chronic stress induces rapid occlusion of angioplasty

Chronic stress can induce rapid blocking of arteries after a balloon angioplasty procedure, according to research performed in animal studies at Georgetown University Medical Center. Blocked coronary arteries after angioplasty affect 41 percent of patients who undergo the procedure and can lead to death.

28 Nov 2005

Scientists unravel complex mechanisms in the brain that regulate body weight

Scientists are one step closer to unraveling the complex mechanisms in the brain that regulate body weight. Working with mice -- whose appetites are controlled by systems very similar to those in humans – they have identified a specific type of neuron that is essential for feeding behavior.

30 Oct 2005

New light shed on the causes of drug addiction

A methamphetamine epidemic rages across the United States with addicts blinded by uncontrollable desires for a drug that eventually thrusts them into a dire and catastrophic existence. Doctors don't have any effective treatments for these addicts, or for any other drug addicts; drug addiction is a disease that remains a medical mystery.

4 Oct 2005

Brain mechanism may play a central role in regulating anxiety and alcohol-drinking

The finding, by researchers supported by the National Institute on Alcohol Abuse and Alcoholism (NIAAA), part of the National Institutes of Health (NIH), could provide important clues about the neurobiology of alcohol-drinking behaviors in humans.

3 Oct 2005

Protein found in the brain is genetically linked to alcoholism and anxiety

The researchers studied rats selectively bred for high alcohol preference (P rats), which were found to have high anxiety levels and consume greater amounts of alcohol than alcohol non-preferring (NP) rats.

3 Oct 2005

Tools for studying the chemistry of the brain, neuron by neuron

The human brain is composed of billions of cells, each a separate entity that communicates with others. The chemical interaction of those cells determines personality, controls behavior and encodes memory; but much remains to be understood.

1 Sep 2005

Neurotransmitter orexin influences reward processing - associated with pleasure and reward pathways in the brain

Researchers at the University of Pennsylvania School of Medicine have discovered that the recently identified neurotransmitter orexin (also known as hypocretin) influences reward processing by activating neurons in the lateral hypothalamus region of the brain.

28 Aug 2005

SH2-B enhances brain's leptin sensitivity - may lead to clues for treatment of obesity and diabetes

What do laboratory mice at the University of Michigan Medical School have in common with millions of overweight Americans? Like many of us, these mice just can't stop eating.

18 Aug 2005

Discovery of a chemical messenger called neuropeptide Y (NPY) in taste bud cells

The tongue's ability to differentiate between sweet and bitter tastes may reside in the same taste bud cells, a new study reports.

18 Jul 2005

Oxytocin - don't sniff it if you want to hang on to your money!

Scientists have often suspected that oxytocin, a neuropeptide involved in various behaviors related to emotion, plays a key role in trust. In humans, oxytocin induces childbirth and lactation, and plays a key role in maternal bonding, while in animals, researchers believe it encourages mating by suspending the animals normal wariness of other animals which allows "approach behavior."

1 Jun 2005