Other Medical Sciences Commons^™

Macrophages And Associated Inflammation Differentially Impact Obesity, Colorectal Cancer And Obesity-Enhanced Colorectal Cancer, Jackie Bader

Theses and Dissertations

Colorectal Cancer (CRC) is the third-most common malignancy for men or women, with chronic inflammation considered as a primary risk factor. Obesity is also considered a chronic inflammatory disease and is associated with increased CRC incidence. Further, obesity and CRC occur in men and women differently with the highest incidence of either disease found in men, suggesting that female sex hormones may play a protective role in inflammatory diseases. Macrophages can promote inflammation and are a driving force in obesity-associated metabolic dysfunction. Conversely, macrophages also contribute to pro-tumoral responses including, proliferation, angiogenesis and tissue remodeling. This heterogeneity of macrophage behavior …

Modulation Of The Cardiomyocyte Hypertrophic Responses To Endothelin-1 By Adipocytes, Suresh Chandra Bairwa

Electronic Thesis and Dissertation Repository

Leptin and adiponectin are the adipokines that are shown to exert pro-hypertrophic and anti-hypertrophic effects respectively, in cardiomyocytes. We sought to determine the direct interaction between the adipocytes and cardiomyocytes during endothelin-1 (ET-1)-induced cardiomyocyte hypertrophy and determine the role of leptin and adiponectin.

The adipose tissue conditioned medium (ACM) inhibited the ET-1-induced hypertrophy in a concentration-dependent manner and this anti-hypertrophic effect was more potent or reversed in the presence of leptin receptor antagonist (LRA; 0.1 nM) or adiponectin receptor-1 antibody (ARA; 100 ng/mL), respectively. ACM from heart failure rats induced by coronary artery ligation or obese rats did not mitigate …