Related Experiment Videos
Plasma adenosine concentrations are elevated in conscious spontaneously hypertensive rats
1Second Department of Internal Medicine, Faculty of Medicine, University of Tokyo, Japan.
Clinical and Experimental Pharmacology & Physiology
|August 1, 1992
Summary
Plasma adenosine levels are elevated in spontaneously hypertensive rats (SHR), suggesting a role for this substance in the development of high blood pressure. This finding highlights adenosine
Area of Science:
- Cardiovascular Physiology
- Pharmacology
- Biochemistry
Background:
- Adenosine is a naturally occurring compound with significant cardiovascular effects.
- Spontaneously hypertensive rats (SHR) serve as a genetic model for human hypertension.
- The role of adenosine in the cardiovascular regulation of hypertensive states requires further investigation.
Purpose of the Study:
- To investigate the potential involvement of adenosine in cardiovascular regulation in SHR.
- To quantify plasma adenosine levels in conscious, unrestrained SHR.
- To compare plasma adenosine concentrations between hypertensive and normotensive rat models.
Main Methods:
- Measurement of plasma adenosine concentrations using a sensitive assay.
- High-performance liquid chromatography with fluorescent detection of adenine compounds.
- Study conducted in 13-week-old spontaneously hypertensive rats (SHR) and Wistar-Kyoto rats.
Main Results:
- Significantly higher plasma adenosine concentrations were observed in SHR compared to Wistar-Kyoto rats (0.165 ± 0.022 vs 0.096 ± 0.008 μmol/L, P < 0.05).
- Elevated plasma adenosine levels were detected in conscious SHR with established hypertension.
Conclusions:
- Plasma adenosine levels are increased in spontaneously hypertensive rats.
- Adenosine may play a partial role in the pathophysiology of hypertension in SHR.
- Further research is warranted to elucidate the precise mechanisms of adenosine's involvement.