Metabolically Healthy Obesity—Does it Exist? |
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Authors: | Patchaya Boonchaya-anant Caroline M Apovian |
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Institution: | 1. Section of Endocrinology, Diabetes and Nutrition, Department of Medicine, Boston University School of Medicine, Robinson Building 4400, 88 East Newton Street, Boston Medical Center, Boston, MA, 02118, USA 2. Endocrinology and Metabolism Unit, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, 1873 Rama IV Road, Pathumwan, Bangkok, 10330, Thailand
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Abstract: | The prevalence of obesity has been increasing worldwide over the past 30 years and is a major public health concern. Obesity is known to be associated with metabolic disturbances including insulin resistance and inflammation; however, there is a subset of obese subjects who have normal metabolic profiles, and they have been identified as the metabolically healthy obese (MHO). Several studies have described MHO as obese individuals who have high levels of insulin sensitivity and the absence of diabetes, dyslipidemia, or hypertension. The prevalence of MHO varies from 20 to 30 % among obese individuals. This review will discuss the MHO phenotype; the differences between MHO and metabolically unhealthy obese (MUO) individuals; and the possible underlying mechanisms including adipocyte differentiation, immune regulation, and cellular energy metabolism. |
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