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dpp-4_inhibitors DPP-4 Inhibitors Sitagliptin Trade Name: Januvia Drug Class: oral hypoglycemics Mechanism of Action: An inhibitor of dipeptidyl peptidase-4 (DPP-4), a protease that degrades the incretin GLP-1 Incretins are hormones released from the GI tract in response to nutrient ingestion Incretins potentiate glucose-stimulated insulin secretion from beta cells in the pancreas As a result of inhibiting DPP-4, increased or prolonged GLP-1 levels are able to potentiate the secretion of insulin by the pancreas The effect produced by DPP-4 inhibitors is dependent on endogenous GLP-1 levels, and produce a modest effect on GLP-1 activity compared to giving GLP-1 receptor agonists (hence DPP-4 inhibitors do not have the same impact to produce weight loss as GLP-1 agonists)
Miske V, Kirchhauser J (2006) First record of brooding and early life cycle stages in Wunderpus photogenicus Hochberg, Norman and Finn, 2006 (Cephalopoda: Octopodidae)
Regular exercise may help restore glutathione levels and improve antioxidant activities
Acetyl-l-Carnitine ameliorates metabolic and endocrine alterations in women with PCOS: A Double-Blind randomized clinical trial
Several facts contradicted this assumption: (1) Glutamate is a non-essential AA, but it is the most abundant AA in brain, (2) Large doses of Glu within the brain extracellular fluid (physiological range is 0.52 mM) induce overexcitation in neurons and thus, this AA is neurotoxic, so its concentration must be tightly controlled, (3) Glu does not enter the brain in appreciable amounts, except in the circumventricular organs and finally, (4) Glu is synthetized in the brain in large quantities
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