Objective: Somatostatin (SST) is secreted by islet δ-cells and by extraislet neuroendocrine cells. SST receptors have been identified on α- and β-cells, and exogenous SST inhibits insulin and glucagon ...
Copper and amyloid-beta — both products of Alzheimer’s disease — cause an important neurotransmitter in the brain to switch functions. Like other neurotransmitters, the small protein called ...
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