Summary
The age dependence of thermal denaturation was monitored in rats anaesthetized after they're born at 7th, 14th, 21st, 28th, 35thand 42nddays. The samples were stored in rigor or physiological saline solution. The DSC scans in the early age groups show a low temperature exotherm (connective tissues: from gel to liquid crystal transition) and one endotherm (it is very probably the myosin). During further development the endotherms became more and more complex (due to the development of contractile system). At 42 days the scans seem to be similar to the adult ones. In the two buffers the endotherms markedly differ showing that the ATPase activity is present. In adult uterus, treated with nucleotides or estrogen, this activity significantly differs from the skeletal muscle. On the basis of our results we suppose, that the age dependent changes are decisive processes in the development of rat uterus.
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Vértes, Z. Thermal stability of rat uterus during development. J Therm Anal Calorim 82, 225–228 (2005). https://doi.org/10.1007/s10973-005-0871-7
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DOI: https://doi.org/10.1007/s10973-005-0871-7