Hemodynamic and endocrine parameters in the anesthetized cynomolgus monkey: a primate model

Area of Science:

• Physiology
• Primate Research

Background:

• Cynomolgus monkeys are vital models in biomedical research.
• Understanding their physiological parameters is essential for interpreting experimental results.

Purpose of the Study:

• To comprehensively measure hemodynamic and endocrine parameters in anesthetized adult male cynomolgus monkeys.
• To establish a data set for comparison with existing literature and future studies.

Main Methods:

• Measurement of right atrial, pulmonary artery, and abdominal aorta pressures.
• Cardiac output determination using thermal dilution, enabling calculation of vascular resistance and stroke volume.
• Assay of plasma adrenocorticotropic hormone (ACTH), cortisol, and renin activity.

Main Results:

• Detailed hemodynamic profiles including pressures, cardiac output, and vascular resistance were obtained.
• Endocrine parameters (ACTH, cortisol, renin activity) were monitored throughout the procedure.
• Technical methodologies and data comparability were addressed.

Conclusions:

• The study successfully characterized key physiological variables in anesthetized cynomolgus monkeys.
• The presented data serve as a valuable reference for preclinical research utilizing this primate model.