Life or Death? A Physiogenomic Approach to Understand Individual Variation in Responses to Hemorrhagic Shock
2011

Understanding Individual Responses to Hemorrhagic Shock

Sample size: 200 publication 10 minutes Evidence: moderate

Author Information

Author(s): Klemcke Harold G, Joe Bina, Rose Rajiv, Ryan Kathy L

Primary Institution: U.S. Army Institute of Surgical Research

Hypothesis

Survival time after controlled hemorrhage is a heritable quantitative trait.

Conclusion

The study found that survival time after hemorrhage varies significantly among different rat strains and is influenced by genetic factors.

Supporting Evidence

  • Survival time varied significantly among different rat strains.
  • Genetic factors were identified as influencing survival time after hemorrhage.
  • Blood volume differences among strains were also noted.

Takeaway

Some rats can survive bleeding better than others because of their genes, and scientists are trying to find out which genes help them survive.

Methodology

The study involved measuring survival time after controlled hemorrhage in multiple strains of inbred rats.

Potential Biases

Potential bias due to the use of specific inbred strains that may not generalize to all populations.

Limitations

The study primarily focused on inbred rat strains, which may not fully represent human responses.

Participant Demographics

Inbred rat strains were used, including Dark Agouti and Brown Norway.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.2174/138920211797248574

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