What is the Origin of Visceral Abdominal Tissue?

The term "visceral" comes from Latin viscera (internal organs). The clinical distinction between subcutaneous fat and metabolically harmful VAT gained significant attention in endocrinology and cardiology with the rise of obesity-related metabolic diseases in the late 20th century, prompting more focused research.

What is the Mechanism of Visceral Abdominal Tissue?

Unlike subcutaneous fat, VAT functions as an endocrine organ that actively secretes pro-inflammatory adipokines and cytokines, including interleukin-6 and TNF-alpha, directly into the portal circulation, which drains to the liver. This chronic inflammatory signaling interferes with hepatic insulin sensitivity and contributes to dyslipidemia and systemic metabolic dysfunction. This mechanism establishes a clear link between central adiposity and increased risk for metabolic syndrome and type 2 diabetes.

Visceral Abdominal Tissue ∞ Area

Visceral Abdominal Tissue

Meaning

A type of adipose tissue stored deep within the abdominal cavity, closely surrounding vital internal organs such as the liver, pancreas, and intestines. Clinically, excess visceral abdominal tissue (VAT) is recognized as a metabolically active, pathological fat depot strongly correlated with systemic inflammation and insulin resistance. It is distinct from subcutaneous fat and represents a major cardiovascular risk factor.