White adipose tissue mass (WAT mass)

White adipose tissue (WAT) mass represents the total volume of specialized connective tissue used primarily for the storage of energy in the form of triglycerides. Beyond its role as an energy reservoir, WAT is a complex and dynamic endocrine organ that secretes a variety of signaling molecules known as adipokines, such as leptin and adiponectin, which regulate systemic metabolism and inflammation [1][2]. In a healthy state, WAT provides thermal insulation and mechanical protection for internal organs; however, pathological expansion of WAT mass—clinically defined as obesity—leads to chronic low-grade inflammation and insulin resistance [3]. Although WAT mass itself is a physiological parameter and clinical endpoint rather than a single molecular target like a protein or enzyme, it is the primary focus of metabolic therapies [4]. Pharmacological interventions, such as GLP-1 receptor agonists or lipase inhibitors, aim to reduce WAT mass to improve metabolic health and mitigate the risk of associated comorbidities like type 2 diabetes and cardiovascular disease [5]. Sources: [1] StatPearls: Adipose Tissue, Physiology (2023). [2] Wikipedia: White adipose tissue. [3] NIH / NIDDK: Health Risks of Overweight & Obesity. [4] PubMed: 'Adipose tissue as a therapeutic target in obesity' (Frontiers in Endocrinology, 2021). [5] PubMed: 'Pharmacotherapy for the treatment of overweight and obesity' (The Lancet, 2022).

Other names

White fat massAdiposityBody fat massAdipose tissue volume

Reduction of white adipose tissue mass is typically achieved indirectly through the activation of receptors that regulate satiety and energy expenditure (e.g., GLP-1 and GIP receptors), inhibition of nutrient absorption (e.g., lipase inhibitors), or modulation of metabolic rate to induce a caloric deficit and subsequent lipolysis.