Previous in vitro studies have shown that vascular smooth muscle cells (VSMC) isolated from the aortae of male spontaneously hypertensive rats (SHR) proliferate more rapidly than those obtained from female SHR. Sex-dependent differences of cytosolic free calcium concentration ([Ca2+]j) were therefore studied in VSMC under basal conditions and after the stimulation by different concentrations of angiotensin II (Ang II). No significant difference in basal [Ca2+]i was found in VSMC from male and female SHR. Angiotensin II significantly increased |Ca2+], in VSMC from both genders. This [Ca2+]j rise elicited by 10'7 and 10~9 M Ang II was more pronounced in cells isolated from males than in those from females. This difference may be attributed to greater mobilisation of intracellular calcium stores in male VSMC. It can be concluded that the cytosolic free calcium response to angiotensin II is augmented in VSMC of male SHR, which also grow more rapidly in response to this peptide hormone.
This text focuses on the community of portestant Bulgarian Czechs, who lived in the years 1900-1950 in two villages Vojvodovo (north-western Bulgaria) and Belinci (eastern Bulgaria). Within the frame of this community the inheritance practices and strategies of the passing of family possession between generations are analysed in relation to family relations and gender. Attention is dedicated expecially to the preponderant ideology of dividable property, the practice of transfer of the property inter vivos, the favouring of male heirs and the youngest son as inheritor of the homestead of parents. These characteristics are further analysed with respect to the family strategies, family relations and gender (im) balance within the frame of this community. The practice of heritage is analysed also with respect to the predominant subsistence strategy (agriculture) and the efforts of the parents to enable the children to keep on in this subsistence that ultimately led to the parcelling out of the land and to repeated migrations for land., Lenka J. Budilová., and Obsahuje bibliografii