Muscle UCP-3 mRNA levels are elevated in weight loss associated with gastrointestinal adenocarcinoma in humans
2002

Elevated UCP-3 mRNA Levels in Cancer Patients with Weight Loss

Sample size: 12 publication Evidence: moderate

Author Information

Author(s): Collins P, Bing C, McCulloch P, Williams G

Primary Institution: University Hospital Aintree

Hypothesis

Are UCP-2 and UCP-3 mRNA levels up-regulated in human cancer associated with weight loss?

Conclusion

UCP-3 mRNA levels are significantly higher in the muscle of cancer patients who have experienced weight loss compared to those who have not and healthy controls.

Supporting Evidence

  • UCP-3 mRNA levels were significantly higher in cancer patients with weight loss compared to controls.
  • UCP-2 mRNA levels did not differ significantly between groups.
  • Most cancer patients in the study were male.

Takeaway

This study found that a protein called UCP-3 is more active in the muscles of cancer patients who lose weight, which might help explain why they lose weight even when they eat enough.

Methodology

The study measured UCP-2 and UCP-3 mRNA levels in muscle samples from cancer patients and healthy controls using semi-quantitative RT-PCR.

Limitations

The study could not obtain fasting free fatty acid levels in enough subjects to establish a meaningful correlation with UCP-3 levels.

Participant Demographics

12 gastrointestinal adenocarcinoma patients (6 with weight loss, 6 without) and 6 healthy controls.

Statistical Information

P-Value

p<0.02

Statistical Significance

p<0.02

Digital Object Identifier (DOI)

10.1038/sj.bjc.6600074

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