Impact of Diabetes on Heart Function in Rats
Author Information
Author(s): Cosyns Bernard, Droogmans Steven, Hernot Sophie, Degaillier Céline, Garbar Christian, Weytjens Caroline, Roosens Bram, Schoors Danny, Lahoutte Tony, Franken Philippe R, Van Camp Guy
Primary Institution: UZ Brussel, VUB, Brussels, Belgium
Hypothesis
The study aims to determine the myocardial blood flow reserve in normal rats compared with Streptozotocin-induced diabetic rats using contrast echocardiography.
Conclusion
Diabetes induces a functional alteration of the myocardial microcirculation and a left ventricular systolic dysfunction in rats.
Supporting Evidence
- Myocardial blood flow reserve was significantly lower in diabetic rats compared to controls.
- There was a significant decrease in left ventricular function in the diabetic group.
- Histological examination showed decreased capillary surface area and diameter in diabetic rats.
Takeaway
This study shows that diabetes can hurt the heart's ability to pump blood by affecting tiny blood vessels.
Methodology
40 Wistar rats were studied, with diabetes induced in 20 rats using streptozotocin, and myocardial blood flow was assessed using contrast echocardiography.
Limitations
The study's results may not apply to other forms of diabetes, and electron microscopy was not performed to assess myocardial structure.
Participant Demographics
Adult male Wistar rats, 10 weeks old.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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