Objective:

To determine the early sequence of events leading to adipose tissue dysfunction and metabolic inflammation in response to a high-fat diet (HFD), focusing on sex-specific differences.

Approach:

Key Findings:

• HFD induced rapid adipose expansion in both sexes, but male mice showed greater weight gain and adipocyte hypertrophy.
• Males exhibited earlier accumulation of pro-inflammatory CD11c+ ATMs and increased inflammatory gene expression compared to females.
• Metabolic dysfunction, including hyperinsulinemia, was observed to precede inflammation, particularly in males.

Interpretation:

Short-term HFD leads to sex-specific adipose tissue remodeling and metabolic dysfunction.

Limitations:

• The study was conducted in a rodent model, which may not fully replicate human responses.
• The focus was on short-term dietary exposure; long-term effects were not assessed.

Conclusion:

The findings highlight the importance of considering sex as a biological variable in the early development of metabolic disease.

Attribution Notice

This content is an AI-generated, fully rewritten summary based on a published scholarly article. It does not reproduce the original text and is not a substitute for the original publication. Readers are encouraged to consult the source for full context, data, and methodology.