Summary
Cardiac output of rats shows seasonal variations with low values in spring and summer and high ones in autumn and winter. The stroke volume was much more implicated in these changes than the heart rate. The seasonal changes of cardiac output are probably due to changes of thyroid function.
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References
J. Kapitola, F. Kölbel, M. Schüllerová andO. Schreiberová, Physiologia bohemos.22, 137 (1973).
Y. C. Lin, C. A. Dawson andS. M. Horvath, Comp. Biochem. Physiol.33, 901 (1970).
M. Vizek andI. Albrecht, Physiologia bohemos.22, 573 (1973).
O. Strubelt, G. Back, E. Uhl andG. Zetler, Naunyn-Schmiedeberg's Arch. Pharmak.271, 346 (1971).
H. Slama andJ. Piiper, Z. Kreisl-Forsch.53, 322 (1964).
A. C. Guyton, New Engl. Med. J.277, 805 (1967).
R. A. Hoffmann andM. X. Zarrow, Acta endocr., Copenh.27, 77 (1958).
P. Rogowski, K. Siersbaek-Nielsen andJ. Mølhom Hansen, J. clin. Endocr.39, 919 (1974).
M. Beznák, Can. J. Biochem.40, 1647 (1962).
R. A. Buccino, J. F. Spann, P. E. Pool, E. H. Sonnenblick andE. Braunwald, J. clin. Invest.46, 1669 (1967).
G. S. Levey, Am. J. Med.50, 413 (1971).
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Back, G., Strubelt, O. Seasonal variations of cardiac output in rats. Experientia 31, 1304–1306 (1975). https://doi.org/10.1007/BF01945794
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DOI: https://doi.org/10.1007/BF01945794