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Lean vs. obese adipose tissue cells

by Dec. 14, 2018, 8:39 AM

Eosinophils are a type of white blood cell that plays many roles in the body, including helping to maintain metabolic homeostasis, the steady state that ensures the body is adequately fueled and waste is eliminated.

Previous studies have found the adipose (fatty) tissue of obese individuals have low levels of eosinophils and high levels of pro-inflammatory macrophages, another type of white blood cell. Inflammation is a characteristic of obesity.

Now Alyssa Hasty, PhD, and colleagues report that reduced levels of eosinophils in adipose tissue are restored to physiological lean levels during diet-induced weight loss while macrophage levels drop in a mouse model of obesity. In the liver, however, eosinophil numbers do not change significantly during dietary weight gain or loss, they reported last month in the journal Physiological Reports.

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