At the GIPR, tirzepatide triggers Gs-mediated cAMP production in adipocytes and pancreatic beta cells, enhancing insulin secretion, improving fat storage efficiency in subcutaneous depots, and increasing lipid buffering capacity
However, the cardiovascular prognosis measurements including heart failure (plasma BNP concentrations), cardiac fibrosis (the relative expression levels of Cola1 and TGF1 in cardiac tissues), and pathological changes (right ventricular collagen percentage, ventricular septum thickness, left ventricular wall thickness, and left ventricular internal diameter) were statistically comparable between mice receiving liraglutide and placebo treatment
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This study showed a mean weight reduction of 10%, and significant reductions in triglyceride, total cholesterol, and LDL-C levels of 25%, 11%, and 11% respectively [32]