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Histamine is a biogenic amine chemical involved in local immune responses as well as regulating physiological function in the gut and acting as a neurotransmitter.
Acid suppression drugs frequently prescribed for high-risk newborns, study shows

Acid suppression drugs frequently prescribed for high-risk newborns, study shows

Since 2006, several published studies have associated the use of some acid suppression medications in hospitalized high-risk babies with infections, necrotizing enterocolitis and increased risk of death. Those medications - histamine-2 receptor antagonists, such as ranitidine (Zantac and others), and proton pump inhibitors, such as esomeprazole (Nexium and others) - were originally approved by the U.S. Food and Drug Administration for use in adults and older children. [More]
Derivatives of female sex hormones can influence natural melanin production, study suggests

Derivatives of female sex hormones can influence natural melanin production, study suggests

When skin cells responsible for pigmentation are exposed to estrogen or progesterone, the cells respond by adjusting their melanin production, resulting in either skin darkening or lightening. Although pregnant women often experience alterations in skin pigmentation, the reason for the changes has long puzzled physicians. [More]
Newly published manuscripts enhance understanding of the immune system

Newly published manuscripts enhance understanding of the immune system

MedImmune, the global biologics research and development arm of AstraZeneca, today announced that it has achieved a significant scientific milestone by publishing three manuscripts in Nature Immunology that advance the understanding of the immune system and highlight underlying mechanisms in two little-understood disease areas -- chronic obstructive pulmonary disease (COPD) and systemic lupus erythematosus (SLE). [More]
High dosages of antihistamines have dulling effect on genes associated with post-exercise recovery

High dosages of antihistamines have dulling effect on genes associated with post-exercise recovery

After vigorous exercise, some 3,000 genes go to work to aid recovery by boosting muscles and blood vessels, but in the presence of high doses of antihistamines almost 27 percent of the gene response is blunted, according to University of Oregon researchers. [More]
Researchers identify potential drug target in skin for itchy feeling

Researchers identify potential drug target in skin for itchy feeling

No matter the trigger -- bug bites, a medication side-effect or an itchy wound -- the urge to scratch can be a real pain. Researchers at the Duke University Medical Center have identified a potential drug target in the skin for that itchy feeling. [More]
NIH researchers identify genetic mutation responsible for vibratory urticaria

NIH researchers identify genetic mutation responsible for vibratory urticaria

Scientists at the National Institutes of Health have identified a genetic mutation responsible for a rare form of inherited hives induced by vibration, also known as vibratory urticaria. Running, hand clapping, towel drying or even taking a bumpy bus ride can cause temporary skin rashes in people with this rare disorder. [More]
Enteric nerves of irritable bowel syndrome patients respond poorly to inflammatory substances

Enteric nerves of irritable bowel syndrome patients respond poorly to inflammatory substances

For the first time, biopsies of patients with irritable bowel syndrome have shown that the nerves in their gut wall respond poorly to a cocktail of inflammatory substances. This refutes the previous theory that patients with irritable bowel syndrome have an overly sensitive gut. [More]
Neurocrine Biosciences announces positive data from NBI-98854 Phase III trial in tardive dyskinesia

Neurocrine Biosciences announces positive data from NBI-98854 Phase III trial in tardive dyskinesia

Neurocrine Biosciences, Inc. announced today that NBI-98854, a highly selective small molecule VMAT2 inhibitor, showed a statistically significant reduction in tardive dyskinesia during the six weeks of placebo-controlled treatment in the Kinect 3 clinical trial. This Phase III trial included moderate to severe tardive dyskinesia patients with underlying schizophrenia, schizoaffective disorder, bipolar or major depressive disorder. [More]
Why do we sleep? An interview with Professor Wisden

Why do we sleep? An interview with Professor Wisden

It is true that we still do not know why we need to sleep every night. Sleep is essential for health. We have to do it every day. But nobody yet knows why. This fact amazes me. [More]
Neurocrine completes enrollment in Phase III clinical trial of NBI-98854 in tardive dyskinesia patients

Neurocrine completes enrollment in Phase III clinical trial of NBI-98854 in tardive dyskinesia patients

Neurocrine Biosciences, Inc. announced today that it has recently completed subject randomization of the Phase III clinical trial (Kinect 3 Study) of its proprietary Vesicular Mono-Amine Transporter 2 (VMAT2) compound NBI-98854 in tardive dyskinesia patients. [More]
Mice without specific brain chemical develop characteristics similar to bipolar disorder, shows study

Mice without specific brain chemical develop characteristics similar to bipolar disorder, shows study

Mice that have a particular brain chemical switched off become hyperactive and sleep for just 65 per cent of their normal time. [More]
Researchers identify link between autoimmune diseases, medications and Long QT syndrome

Researchers identify link between autoimmune diseases, medications and Long QT syndrome

Mohamed Boutjdir, PhD, professor of medicine, cell biology, and physiology and pharmacology at SUNY Downstate Medical Center, has led a study with international collaborators identifying the mechanism by which patients with various autoimmune and connective tissue disorders may be at risk for life-threatening cardiac events if they take certain anti-histamine or anti-depressant medications. [More]
Symptoms and characteristics of cluster headache

Symptoms and characteristics of cluster headache

June is National Migraine and Headache Awareness Month. The global burden of headache is extremely large, putting headache among the top 10 causes of disability worldwide. [More]
Tioga Pharmaceuticals announces commencement of asimadoline Phase 2 study for treatment of pruritus

Tioga Pharmaceuticals announces commencement of asimadoline Phase 2 study for treatment of pruritus

Tioga Pharmaceuticals, a clinical stage biotechnology company, today announced the initiation of a Phase 2 clinical study of asimadoline, a novel, well-studied kappa-opioid receptor specific agonist, for the treatment of pruritus or itching. The double-blind, placebo-controlled clinical study is designed to evaluate the safety, tolerability, and clinical efficacy of asimadoline in patients with pruritus due to atopic dermatitis and is being conducted at 20 clinical study centers in the United States. [More]
Montefiore physician offers tips for seasonal allergy sufferers

Montefiore physician offers tips for seasonal allergy sufferers

This winter was one of the coldest on record, but spring allergy season is already beginning and it's time for sufferers to start preparing now. [More]
Anticholinergic medications associated with pneumonia risk in older people

Anticholinergic medications associated with pneumonia risk in older people

Taking commonly used medications with anticholinergic effects is associated with a significantly higher risk for developing pneumonia in a study of more than 3,000 older Group Health patients living in the community--not in nursing homes. [More]
UConn chemists develop more advanced peanut allergy test

UConn chemists develop more advanced peanut allergy test

Current peanut allergy tests are not very reliable when it comes to diagnosing the severity of an individual's allergic reaction, which can range from hives to life-threatening anaphylactic shock. [More]
Researchers identify a single protein as root cause of multiple allergic reactions

Researchers identify a single protein as root cause of multiple allergic reactions

Johns Hopkins and University of Alberta researchers have identified a single protein as the root of painful and dangerous allergic reactions to a range of medications and other substances. If a new drug can be found that targets the problematic protein, they say, it could help smooth treatment for patients with conditions ranging from prostate cancer to diabetes to HIV [More]
Vitamin C may reduce exercise-induced bronchoconstriction and respiratory symptoms

Vitamin C may reduce exercise-induced bronchoconstriction and respiratory symptoms

Physical activity increases oxidative stress, and therefore, as an antioxidant vitamin C might have particularly evident effects on people who are participating in vigorous exercise. In several studies, vitamin C administration attenuated the increases in oxidative stress markers caused by exercise. Furthermore, vitamin C is involved in the metabolism of histamine, prostaglandins, and cysteinyl leukotrienes, all of which appear to be mediators in the pathogenesis of exercise-induced bronchoconstriction. [More]
Antacid medicines improve overall survival in patients with head and neck cancer

Antacid medicines improve overall survival in patients with head and neck cancer

Patients with head and neck cancer who used antacid medicines to control acid reflux had better overall survival, according to a new study from the University of Michigan Comprehensive Cancer Center. [More]
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