Circulating prolactin level is increased in metabolically healthy obesity

Area of Science:

• Endocrinology
• Metabolic Syndrome Research
• Obesity Studies

Background:

• Prolactin (PRL) is increasingly recognized for its role in regulating energy metabolism.
• Understanding the relationship between PRL and metabolic health in obesity is crucial.

Purpose of the Study:

• To investigate the association between prolactin (PRL) levels and metabolic alterations in different obesity phenotypes.
• To determine if PRL is an independent predictor of metabolically healthy obesity (MHO).

Main Methods:

• Recruited 451 participants: 351 obese and 100 healthy controls.
• Measured PRL, anthropometric, and clinical parameters.
• Utilized multivariate regression analyses to identify associations and predictors.

Main Results:

• Metabolically healthy obesity (MHO) group showed higher PRL levels compared to controls and metabolically unhealthy obesity (MUHO) group.
• MHO individuals had lower hsCRP, HOMA-IR, and adipo-IR.
• PRL and hsCRP were identified as independent predictors of MHO.

Conclusions:

• Elevated circulating PRL levels may be a compensatory mechanism for favorable energy metabolism in obesity.
• PRL is a significant independent predictor of metabolically healthy obesity.
• Further research into PRL's role in obesity and metabolic health is warranted.