. Bonner zoologische Monographien. Zoology. 35 Awake > Hib lrng% -> Arousal. Tb°C 30 40 Fig. 23: Dependence of blood glucose on core temperature during arousal from hibernation. El = Eliomys quercinus, plasma, chest temperature (Ambid 1971), C = Citellus undulatus, plasma, brown fat temperature (Galster and Morrison 1975), Er1 = Erinaceus europaeus, whole blood, interscap. temperature (Saarikoski and Suomalainen 1970), Er2 = Erinaceus europaeus, plasma, rect. temperature (Clausen 1964). Average curves. in number and an enlargement of the individual mitochondria in different tissues (Coss
. Bonner zoologische Monographien. Zoology. 35 Awake > Hib lrng% -> Arousal. Tb°C 30 40 Fig. 23: Dependence of blood glucose on core temperature during arousal from hibernation. El = Eliomys quercinus, plasma, chest temperature (Ambid 1971), C = Citellus undulatus, plasma, brown fat temperature (Galster and Morrison 1975), Er1 = Erinaceus europaeus, whole blood, interscap. temperature (Saarikoski and Suomalainen 1970), Er2 = Erinaceus europaeus, plasma, rect. temperature (Clausen 1964). Average curves. in number and an enlargement of the individual mitochondria in different tissues (Cossel and Wohlrab 1964, Umahara 1968) and of the intramito- chondrial accumultation of substrates and enzyme material (Poche 1959). By an improved coupling of ATP formation to the respiratory chain, the 02-consumption of tissues during hibernation (in respect to the decreased temperature) should be the same or even lower than that during the normothermic state. A lowered CVconsumption should occur also if the tissues change from aerobic to anaerobic metabolism. From the unchanged or even increased P/O-ratio (liver, brain) one can conclude that there is a good coupling in the tissues. In vitro studies have had very different results, depending on the organs that are used, on the methods and on the TV Generally, for comparable TVs in liver and brain tissues, a decreased (^-consumption was usually found; in heart and skeletal muscles it was increased, in kidneys and in brown fat unchanged (Denyes and Hassett 1960, Horwitz and Nelson 1968). Contradictory results are also known. There even seem to be differences. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bonn, Zoologisches Forschungsinstitut und Museum Alexander Koenig
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