Carboxylic Acids

<p>H-Phe-Leu-Arg-Phe-NH2 acetate salt is a peptide that has been shown to inhibit neuronal activity in the Xenopus oocyte. This inhibition is biphasic and can be reversed by the addition of an excess of glutamate. It has been shown to have an inhibitory effect on the release of neurotransmitters from the isolated heart, ganglia, and subesophageal ganglion. The sequence of H-Phe-Leu-Arg-Phe-NH2 acetate salt has been determined as carboxy terminal. The physiological effects of H-Phe-Leu-Arg-Phe-NH2 acetate salt are related to its receptor binding properties.</p>

<p>Phosphomolybdic acid hydrate is a molybdenum-containing compound that exhibits biological activity. It has been found to have an effect on water permeability and the biological sample, which can be detected by synchronous fluorescence. The electrochemical impedance spectroscopy can be used to measure the effects of phosphomolybdic acid hydrate on energy metabolism. This compound has also been shown to act as a catalyst in analytical methods, such as laser ablation, and can be used in a model system for hydrogen bonding interactions with zirconium oxide.</p>

<p>Endothelin-1 (ET-1) is a peptide that is produced by the endothelium. ET-1 is involved in numerous biological processes, including vasoconstriction, inflammation, and cell proliferation. Endothelin-1 (human ET-1) acetate salt H-Cys-Ser-Cys-Ser-Ser-Leu-Met-Asp-Lys-(Glu)-Cys-(Val)-Tyr-(Phe)-Cys-(His)-Leu -Asp(-Ile)-Ile(-Trp)) acetate salt is a recombinant protein that has been shown to significantly upregulate the production of endothelin in primary pulmonary hypertension. It also plays an important role in bowel disease, where it may be involved in the development of chronic inflammatory bowel disease.</p>