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1.
The Korean Journal of Internal Medicine ; : 239-247, 2017.
Article in English | WPRIM | ID: wpr-82850

ABSTRACT

Adipose tissue secretes a variety of bioactive substances that are associated with chronic inflammation, insulin resistance, and an increased risk of type 2 diabetes mellitus. While resistin was first known as an adipocyte-secreted hormone (adipokine) linked to obesity and insulin resistance in rodents, it is predominantly expressed and secreted by macrophages in humans. Epidemiological and genetic studies indicate that increased resistin levels are associated with the development of insulin resistance, diabetes, and cardiovascular disease. Resistin also appears to mediate the pathogenesis of atherosclerosis by promoting endothelial dysfunction, vascular smooth muscle cell proliferation, arterial inflammation, and the formation of foam cells. Thus, resistin is predictive of atherosclerosis and poor clinical outcomes in patients with cardiovascular disease and heart failure. Furthermore, recent evidence suggests that resistin is associated with atherogenic dyslipidemia and hypertension. The present review will focus on the role of human resistin in the pathogeneses of inflammation and obesity-related diseases.


Subject(s)
Humans , Adipose Tissue , Arteritis , Atherosclerosis , Cardiovascular Diseases , Cell Proliferation , Diabetes Mellitus, Type 2 , Dyslipidemias , Foam Cells , Heart Failure , Hypertension , Inflammation , Insulin Resistance , Macrophages , Muscle, Smooth, Vascular , Obesity , Resistin , Rodentia
2.
Endocrinology and Metabolism ; : 235-245, 2015.
Article in English | WPRIM | ID: wpr-215491

ABSTRACT

Skeletal muscle is the largest organ of the body in non-obese individuals and is now considered to be an endocrine organ. Hormones (myokines) secreted by skeletal muscle mediate communications between muscle and liver, adipose tissue, brain, and other organs. Myokines affect muscle mass and myofiber switching, and have profound effects on glucose and lipid metabolism and inflammation, thus contributing to energy homeostasis and the pathogenesis of obesity, diabetes, and other diseases. In this review, we summarize recent findings on the biology of myokines and provide an assessment of their potential as therapeutic targets.


Subject(s)
Adipose Tissue , Biology , Brain , Glucose , Homeostasis , Inflammation , Lipid Metabolism , Liver , Metabolism , Muscle, Skeletal , Obesity
3.
Diabetes & Metabolism Journal ; : 404-414, 2013.
Article in English | WPRIM | ID: wpr-31450

ABSTRACT

Obesity is characterized by excess accumulation of lipids in adipose tissue and other organs, and chronic inflammation associated with insulin resistance and an increased risk of type 2 diabetes. Obesity, type 2 diabetes, and cardiovascular diseases are major health concerns. Resistin was first discovered as an adipose-secreted hormone (adipokine) linked to obesity and insulin resistance in rodents. Adipocyte-derived resistin is increased in obese rodents and strongly related to insulin resistance. However, in contrast to rodents, resistin is expressed and secreted from macrophages in humans and is increased in inflammatory conditions. Some studies have also suggested an association between increased resistin levels and insulin resistance, diabetes and cardiovascular disease. Genetic studies have provided additional evidence for a role of resistin in insulin resistance and inflammation. Resistin appears to mediate the pathogenesis of atherosclerosis by promoting endothelial dysfunction, vascular smooth muscle cell proliferation, arterial inflammation, and formation of foam cells. Indeed, resistin is predictive of atherosclerosis and poor clinical outcomes in patients with coronary artery disease and ischemic stroke. There is also growing evidence that elevated resistin is associated with the development of heart failure. This review will focus on the biology of resistin in rodents and humans, and evidence linking resistin with type 2 diabetes, atherosclerosis, and cardiovascular disease.


Subject(s)
Humans , Adipocytes , Adipose Tissue , Arteritis , Atherosclerosis , Biology , Cardiovascular Diseases , Cell Proliferation , Coronary Artery Disease , Diabetes Mellitus, Type 2 , Foam Cells , Heart Failure , Inflammation , Insulin Resistance , Macrophages , Muscle, Smooth, Vascular , Obesity , Polymorphism, Genetic , Resistin , Rodentia , Stroke
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