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Medical Sciences

East Tennessee State University

Obesity

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Leptin Activation Of Metabolically-Related Hypothalamic Neurons, Kailee Hixon May 2021

Leptin Activation Of Metabolically-Related Hypothalamic Neurons, Kailee Hixon

Undergraduate Honors Theses

Obesity is often associated with multiple other clinical conditions, including hypertension and cardiovascular disease. Currently, more than one-third of the world’s population is classified as obese. Leptin is a neuropeptide that is released from adipose cells and is responsible for reducing appetite and increasing metabolism. Leptin also has a role in the activation of cardiovascular and metabolic pre-sympathetic neurons and has been reported to increase blood pressure and heart rate. Thus, understanding the activation of the autonomic nervous system by leptin has implications in the development and safety of drugs to avoid activation of cardiovascular pre-sympathetic neurons. This is important …


Systemic Leptin Modulates The Expression Of E-Cadherin, Β-Catenin In The Ovary Of Dietary-Induced Obese Infertile Rats, Olufunke A. Sokan Aug 2013

Systemic Leptin Modulates The Expression Of E-Cadherin, Β-Catenin In The Ovary Of Dietary-Induced Obese Infertile Rats, Olufunke A. Sokan

Electronic Theses and Dissertations

One of the numerous complications of obesity is infertility. Leptin has been shown to reverse infertility; however, exact mechanism is poorly understood. Recent evidence indicates Ecadherin/ β-catenin complex, which is a structural constituent of adherens junction, is expressed in the rat ovary during folliculogenesis. We hypothesized that systemic leptin modulates the expression of E-cadherin and β-catenin in dietary-induced obese infertile rats to reverse infertility. Female Sprague-Dawley rats were fed either regular chow diet (RCD) (n=6) or high fat diet (HFD) (n=14). Oestrus cycles were monitored daily until their cycles became irregular. 100 ug/ml of leptin was given intraperitoneally to HFD-fed …