In their article the Bioinformaticists listed the experimentally calculated hematocrit values of a total of 57 species of vertebrates from the literature. “However there are some aberrations from the optimum,“ Stark points out. The hematocrit of seals for instance is considerably higher with 63 percent. “Additional criteria might apply in this case.“ Marine mammals for instance need a bigger capacity to store oxygen as they dive for long periods of time.With their results the Jena scientists also question the illegal practice of blood doping in sports: This means trying to raise the concentration of the oxygen transporting hemoglobin in the blood and thereby trying to increase the athlete’s performance. This leads to an artificial increase of the hematocrit value. “This is not only a criminal offence, but at the same time its physiological effect is highly questionable according to our calculations“, Prof. Schuster summarizes.
Dr. Ute Schönfelder | idw
22.02.2018 | Albert-Ludwigs-Universität Freiburg im Breisgau
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