Tryptophan News and Research

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Tryptophan is one of the 20 standard amino acids, as well as an essential amino acid in the human diet.

Serotonin promotes beta cell expansion during pregnancy, offers possible cure for type 1 diabetes

Researchers funded by JDRF have discovered that the hormone, serotonin, may be involved in the increase of insulin-producing beta cells during pregnancy.

29 Jun 2010

New findings could lead to simple dietary solutions, possible therapeutics for gestational diabetes

The cause of diabetes during pregnancy is directly controlled by serotonin, a chemical produced by the body and normally known as a neurotransmitter, and is influenced by the amount of protein in the mother's diet early in pregnancy, according to new findings of an international team led by researchers at UCSF.

28 Jun 2010

Study reveals increase of enzyme MAO-A in female brain during immediate postpartum period

Within the first week after giving birth, up to 70 percent of all women experience symptoms of the baby blues. While most women recover quickly, up to 13 percent of all new mothers suffer from symptoms of a clinical-level postpartum depression. Postpartum depression is defined as a major depressive episode starting within 4 weeks after delivery and is a significant public health problem. Postpartum blues represents a major risk factor for developing postpartum depression and severe postpartum blues symptoms can be viewed as a prodromal stage for postpartum depression.

17 Jun 2010

Lexicon Pharmaceuticals first-quarter revenues down 61%

Lexicon Pharmaceuticals, Inc., a biopharmaceutical company focused on discovering and developing breakthrough treatments for human disease, today updated its drug development progress and reported financial results for the three months ended March 31, 2010.

10 May 2010

Positive results from Phase 2 clinical study of LX1031 in IBS patients presented at DDW 2010

Lexicon Pharmaceuticals, Inc., a biopharmaceutical company focused on discovering and developing breakthrough treatments for human disease, presented results from its positive Phase 2 clinical study with LX1031 in patients with non-constipating irritable bowel syndrome at Digestive Disease Week 2010 in New Orleans, Louisiana.

6 May 2010

Study: Scientists advance toward development of urine test for detecting colon cancer

Scientists are reporting an advance toward development of a urine test for detecting colon cancer, the third most common cancer in the United States. Such a test could eventually compliment or even reduce the need for colonoscopy, the mainstay screening test used today. The study, which analyzes chemical differences in the urine of humans with and without colon cancer, is in ACS' Journal of Proteome Research, a monthly publication.

22 Apr 2010

Lexicon Pharmaceuticals reports positive results from Phase 2 clinical trials for IBS and type 2 diabetes

23 Feb 2010

Sudden infant death syndrome linked to low serotonin levels

Taking the next step in more than 20 years of research, researchers at Children's Hospital Boston have linked sudden infant death syndrome (SIDS) with low production of serotonin in the brainstem, based on a comparison of brainstem samples from infants dying of SIDS compared to brainstems of infants dying from other, known causes.

4 Feb 2010

Decreased levels in brainstem of serotonin associated with increased risk for SIDS

Preliminary research indicates that decreased levels in the brainstem of serotonin (5-hydroxytryptamine [5-HT]; a neurotransmitter involved in several brain functions) and tryptophan hydroxylase (TPH2; an enzyme involved in the synthesis of serotonin) are associated with an increased risk for sudden infant death syndrome (SIDS), according to a study in the February 3 issue of JAMA.

3 Feb 2010

Top-line data from Lexicon Pharmaceuticals' LX1031 Phase 2 study for IBS to be presented

Lexicon Pharmaceuticals, Inc., announced today that top-line data from its Phase 2 clinical study with LX1031 in patients with non-constipating irritable bowel syndrome (IBS) will be presented at GASTRO 2009 in London this week. Results from the study, which showed a significant improvement in IBS symptoms, will be presented by Dr. Philip M. Brown, Lexicon's senior vice president of clinical development, on November 25, 2009 at 2:30 pm local time at the session entitled, "Therapeutic insights in functional digestive disorders."

23 Nov 2009

Positive results from Lexicon Pharmaceuticals' LX1031 Phase 2 study for IBS

Lexicon Pharmaceuticals, Inc. announced today that the company's investigational new drug, LX1031, a tryptophan hydroxylase (TPH) inhibitor, demonstrated positive results in clinically important parameters for the treatment of non-constipating irritable bowel syndrome (IBS).

13 Nov 2009

Lexicon Pharmaceuticals reports fiscal 2009 third-quarter results and updates of its clinical trials

27 Oct 2009

Breakthrough in combating adverse side-effects associated with quinine

Discovered back in the 1600s quinine was the first effective treatment in the fight against malaria - and it continues to be a commonly used treatment against this devastating disease. But the drug is associated with a long list of side effects which can range from sickness and headaches to blindness, deafness and in rare cases death - and until now no one knew why.

29 Jun 2009

Marker in blood may explain susceptibility to interstitial cystitis

A marker in the blood of both cats and humans that was identified in a recent study might signal both species' susceptibility for a painful bladder disorder called interstitial cystitis, a condition that is often difficult to diagnose.

16 Jun 2009

Skin cells provide new knowledge about brain functions

Until now diseases like schizophrenia and bipolar disorder have been difficult to study biologically, since this would entail taking samples from the patient's brain.

3 Jun 2009

Tiny genetic change keeps nicotine from binding to muscle cells

A tiny genetic mutation is the key to understanding why nicotine--which binds to brain receptors with such addictive potency--is virtually powerless in muscle cells that are studded with the same type of receptor.

23 Mar 2009

Genetics may predict risk for relapse among alcohol-dependent patients

In Poland, alcohol dependence (AD) affects about four percent of the population, causing about 10,000 deaths per year.

3 Feb 2009

Merck Serono's Kuvan receives European marketing authorization

Merck Serono, a division of Merck KGaA, Darmstadt, Germany, today announced that the European Commission has granted marketing authorization for Kuvan(R) for the treatment of hyperphenylalaninemia (HPA) in phenylketonuria (PKU) or BH4 deficient patients.

10 Dec 2008

Discovery of gene variants that impact the placebo effect

It is a well-known fact in drug trials that individuals can respond just as well to placebos, sugar pills, as to the active drug.

3 Dec 2008

Protein indoleamine 2,3-dioxygenase points to new pancreatic cancer therapies

An enzyme that is overexpressed in pancreatic cancer cells may hold the key to successfully treating the disease with targeted immunotherapy, researchers from Thomas Jefferson University reported at the 2008 Annual Meeting of the Southern Surgical Association.

1 Dec 2008