Publications by authors named "Ho Y Yeung"

Article Synopsis
  • Venomous animals, like certain cone snails, have special ways to capture their prey and protect themselves, usually by messing with their prey's systems like nerves and blood.
  • One particular cone snail catches fish using a unique insulin that lowers the fish's blood sugar, making them weaker and easier to catch.
  • The study found that the cone snail also uses another toxin that stops fish from releasing a hormone that would normally boost their blood sugar, making it even harder for the fish to escape.
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Unlabelled: Persistent pain affects one in five people worldwide, often with severely debilitating consequences. Current treatment options, which can be effective for mild or acute pain, are ill-suited for moderate-to-severe persistent pain, resulting in an urgent need for new therapeutics. In recent years, the somatostatin receptor 4 (SSTR ), which is expressed in sensory neurons of the peripheral nervous system, has emerged as a promising target for pain relief.

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Aims/hypothesis: Diabetes mellitus is associated with impaired insulin secretion, often aggravated by oversecretion of glucagon. Therapeutic interventions should ideally correct both defects. Glucagon-like peptide 1 (GLP-1) has this capability but exactly how it exerts its glucagonostatic effect remains obscure.

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The Hainan Pygmy Toad Parapelophryne scalpta (Liu Hu) is the single species of the genus Parapelophryne Fei, Ye Jiang in the Family Bufonidae (Frost 2020) and is endemic to China's Hainan Island, which lies within the tropics at 18°09'-20°10'N, 108°37'-111°03'E, with a land area of ca. 33,900 km2. The taxonomy status of this species has obtained much debates since its discovery: it was originally described by Liu et al.

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Receptor component protein (RCP) is a 148 amino acid intracellular peripheral membrane protein, previously identified as promoting the coupling of CGRP to cAMP production at the CGRP receptor, a heterodimer of calcitonin receptor like-receptor (CLR), a family B G protein-coupled receptor (GPCR) and receptor activity modifying protein 1 (RAMP1). We extend these observations to show that it selectively enhances CGRP receptor coupling to Gs but not Gq or pERK activation. At other family B GPCRs, it enhances cAMP production at the calcitonin, corticotrophin releasing factor type 1a and glucagon-like peptide type 2 receptors with their cognate ligands but not at the adrenomedullin type 1 (AM), gastric inhibitory peptide and glucagon-like peptide type 1 receptors, all expressed in transfected HEK293S cells.

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There is growing evidence to suggest that altered patterns of STC1 gene expression relate to the process of human cancer development. Our previous study has demonstrated the involvement of HIF-1 in the regulation of STC1 expression in human cancer cells. Recently, STC1 has been implicated as a putative pro-apoptotic factor in regulating the cell-death mechanism.

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Stanniocalcin-1 (STC1) is an endocrine hormone originally discovered in the corpuscles of Stannius, endocrine glands on kidneys of bony fishes, and also has been identified in mammals. The mammalian STC1 gene is widely expressed in various tissues and appears to be involved in diverse biological processes. There is growing evidence to suggest that altered patterns of gene expression have a role in human cancer development.

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Stanniocalcin (STC) is a new mammalian polypeptide hormone and appears to be a regulator of neuronal function. We have already shown that the induction of STC mRNA and protein expression by cAMP is integral to neuroblastoma cell differentiation, particularly neurite outgrowth. In this study, we examined the cAMP pathway in greater detail.

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