Abstract
Blood oxygen capacity is one of the most important determinants of myocardial oxygenation (Rakusan, 1971). Immature rats have a lower blood oxygen carrying capacity than the adult animals due to a lower hemoglobin (Hb) concentration (Dhindsa et al., 1981). They also have a lower myocardial myoglobin (Mb) concentration (Rakusan et al., 1965). We are not aware of any direct measurement of the other important myocardial oxygen pressure determinants, such as coronary blood flow and myocardial oxygen consumption in immature rats. Estimations of coronary blood flow (in ml/g of tissue) based on cardiac output and rubidium clearance measurements (Vizek and Albrecht, 1973; Rakusan and Marcinek, 1973) indicate no significant difference between immature and adult rats.
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References
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© 1994 Springer Science+Business Media New York
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Turek, Z., Batra, S., Rakusan, K. (1994). Myocardial Oxygenation in Immature and Adult Rats. In: Vaupel, P., Zander, R., Bruley, D.F. (eds) Oxygen Transport to Tissue XV. Advances in Experimental Medicine and Biology, vol 345. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-2468-7_33
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DOI: https://doi.org/10.1007/978-1-4615-2468-7_33
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