A Blueberry-Enriched Diet Attenuates Nephropathy in a Rat Model of Hypertension via Reduction in Oxidative Stress
2011

Blueberry Diet Helps Protect Kidneys in Hypertensive Rats

Sample size: 80 publication 10 minutes Evidence: high

Author Information

Author(s): Carrie M. Elks, Scott D. Reed, Nithya Mariappan, Barbara Shukitt-Hale, James A. Joseph, Donald K. Ingram, Joseph Francis

Primary Institution: Louisiana State University School of Veterinary Medicine

Hypothesis

The dietary BB supplementation would reduce oxidative stress and thus attenuate renal damage.

Conclusion

Long-term feeding of a blueberry-enriched diet lowered blood pressure and improved kidney function in hypertensive rats.

Supporting Evidence

  • Rats on a blueberry diet had lower blood pressure compared to control rats.
  • The blueberry diet improved kidney function as measured by glomerular filtration rate.
  • Oxidative stress markers were significantly lower in rats fed blueberries.
  • Long-term blueberry feeding preserved renal hemodynamics in hypertensive rats.

Takeaway

Feeding rats blueberries helped their kidneys stay healthy and lowered their blood pressure.

Methodology

Male spontaneously hypertensive rats were fed a blueberry-enriched diet or a control diet for 6 or 12 weeks, and various kidney functions and oxidative stress markers were measured.

Limitations

The study primarily focused on prevention rather than treatment of hypertension-induced renal injury.

Participant Demographics

Male spontaneously hypertensive rats and normotensive Wistar-Kyoto rats.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0024028

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