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LX-1031 is an oral, small molecule tryptophan 5-hydroxylase (TPH) inhibitor that reduces serotonin (5-HT) synthesis peripherally. It has potential for illnesses characterized by excess 5-HT, such as diarrhea-predominant irritable bowel syndrome (IBS-D) and carcinoid diarrhea. In vitro, inhibition of
Irregularities of serotonin function in irritable bowel syndrome (IBS) may be due to changes in the metabolism of the serotonin precursor l-tryptophan. Dietary alteration of tryptophan intake may impact upon the mood and bowel symptoms of IBS. We hypothesized that diarrhea-predominant irritable
Background: Although reports have provided evidence that diarrhea caused by Folium sennae can result in intestinal microbiota diversity disorder, the intestinal bacterial characteristic and specific mechanism are still unknown. The
We studied the clinical and epidemiological characteristics of Klebsiella oxytoca-associated diarrhea in hospitalized patients in Hong Kong. Between 1 November 2009 and 30 April 2011, all inositol-fermenting colonies found on Simmons citrate agar supplemented with inositol, tryptophan, and bile
Serum-derived bovine immunoglobulin/protein isolate (SBI), an oral nutritional therapy, is efficacious in diverse diarrheal diseases. In an open-label study in 15 patients with irritable bowel syndrome-diarrhea (IBS-D), we evaluated effects of SBI (5.0 g, twice a day) for 8 weeks on safety, on bowel
LX-1031, being developed by Lexicon Pharmaceuticals, is an oral, small-molecule tryptophan 5-hydroxylase (TPH) inhibitor that reduces 5-HT synthesis peripherally. LX-1031 is being developed for the potential treatment of diarrhea-predominant irritable bowel syndrome (IBS-D), which is characterized
Malnutrition leads to increased morbidity and is evident in almost half of all deaths in children under the age of 5 years. Mortality due to rotavirus diarrhea is common in developing countries where malnutrition is prevalent; however, the relationship between malnutrition and rotavirus infection
Pulsatilla decoction (PD) is a classical prescription in traditional Chinese medicine that has therapeutic effects on wetness-heat-induced diarrhea (WHD). To investigate the therapeutic effects of PD in the treatment of WHD and elucidate the potential mechanism, we used a metabolomics strategy on
We examined several parameters of urine excretion during a two-year initiation-promotion experiment in male Fischer rats using four weeks of N-[4-(5-nitro-2-furyl)-2-thiazoly]formamide at 0.2% of the diet as the initiating agent and either 5% sodium saccharin or 2% L-tryptophan in the diet as
Environmental enteric dysfunction (EED) may be ameliorated by zinc supplementation. The objective of this study was to investigate the impact of different forms of zinc supplementation on biomarkers of EED (i.e., plasma citrulline, kynurenine, and tryptophan concentrations and the
Our objectives are to demonstrate whether the kynurenine pathway is activated in diarrhea-type irritable bowel syndrome (IBS-D) patients, and whether the neurotoxic metabolite quinolinic acid (QUIN) is out of balance with the neuroprotective metabolite kynurenic acid (KYNA), and further explore
Telotristat ethyl (Xermelo) is a tryptophan hydrolase inhibitor indicated for the treatment of refractory carcinoid syndrome diarrhea, in combination with somatostatin analogue (SSA) therapy, in patients whose condition is inadequately controlled by SSA therapy alone. Carcinoid syndrome occurs in
There have been several reports describing that immunoadsorption therapy improves the neurologic involvement in Fisher's syndrome (FS). However, few studies have assessed the usefulness of immunoadsorption therapy in view of the removal ability of anti-GQ(1b) antibody, which may function the
Tryptophan ethyl ester, a lipid-soluble tryptophan derivative, was used to bypass defective gastrointestinal neutral amino acid transport in a child with Hartnup disease. The child's baseline tryptophan concentrations in serum (20 +/- 6 microM) and cerebrospinal fluid (1.0 +/- 0.2 microM) were
Telotristat ethyl (Xermelo), developed by Lexicon Pharmaceuticals, is an oral tryptophan hydroxylase inhibitor blocking peripheral conversion of tryptophan to serotonin (5-hydroxytryptamine [5-HT]). It was approved by the U.S. Food and Drug Administration (FDA) in February 2017 and by the European