Metabolic Effects of Surgical Fat Removal Techniques

Surgical removal of adipose tissue—whether through liposuction, abdominoplasty, lipectomy or reduction mammaplasty—has traditionally aimed at reshaping body contours. Beyond aesthetics, these interventions provoke complex metabolic responses. Adipose tissue is now recognised as an endocrine organ secreting adipokines (for example leptin and adiponectin) that regulate insulin sensitivity, inflammation and lipid homeostasis. Excising subcutaneous fat can alter circulating adipokine levels, transiently improve insulin resistance and modify lipid profiles; however, the magnitude and duration of these effects vary widely. Animal models reveal early upregulation of hepatic anabolic genes and compensatory lipogenesis, which may contribute to subsequent weight regain. Human studies report modest reductions in leptin, slight improvements in insulin sensitivity and inconsistent changes in glucose tolerance or cholesterol fractions. Variations in patient characteristics, surgical technique and volume of fat removed further complicate interpretation. The global rise in demand for cosmetic and post-bariatric body-contouring procedures underscores the need to balance aesthetic goals with metabolic safety. An integrated understanding of adipose tissue biology, patient selection and long-term metabolic monitoring is essential to optimise outcomes and mitigate potential adverse sequelae.

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Metabolic Effects of Surgical Fat Removal Techniques publication trend

The graph below shows the total number of articles in metabolic effects of surgical fat removal techniques across all publications each year (not limited to Nature Index journals).

Technical terms

Surgical subcutaneous fat removal (SSFR): A collective term for procedures—such as liposuction, lipectomy and abdominoplasty—that excise fat located beneath the skin.

Insulin resistance: A state in which cells fail to respond adequately to insulin, leading to elevated blood glucose and compensatory hyperinsulinaemia.

Adipokines: Bioactive proteins secreted by adipose tissue—most notably leptin and adiponectin—that influence appetite, inflammation, insulin sensitivity and lipid metabolism.

Glucose excursion: The change in blood glucose levels over time, typically measured during an oral glucose tolerance test to assess glycaemic control.

Homeostasis Model Assessment of Insulin Resistance (HOMA-IR): A calculation derived from fasting glucose and insulin concentrations used to estimate insulin sensitivity.

References

1. The Effects of Reduction Mammaplasty on Serum Leptin Levels and Insulin Resistance. International Journal of Endocrinology (2015).
2. Short and Long-Term Impact of Lipectomy on Expression Profile of Hepatic Anabolic Genes in Rats: A High Fat and High Cholesterol Diet-Induced Obese Model. PLOS ONE (2014).
3. Prospective cohort of parameters of glycemic and lipid metabolism after abdominoplasty in normal weight and formerly obese patiens. JPRAS Open (2023).
4. The impact of prior obesity surgery on glucose metabolism after body contouring surgery: A pilot study. Biomolecules and Biomedicine (2023).
5. Metabolic aspects of surgical subcutaneous fat removal: an umbrella review and implications for future research. Biomolecules and Biomedicine (2022).