Biomedical subjects

C Gross

Publications and source records attributed to C Gross.

182 records · Page 11Linked to original sources

PubMedDate not supplied

The relationship between systolic blood pressure and microvascular resistance in non-diabetic and diabetic subjects.

Skin blood flow and microvascular resistance were measured in the feet of hypertensive and normotensive subjects by the non-invasive transient thermal clearance method. Skin blood flow decreased and microvascular resistance increased as a function of systolic brachial blood pressure for the non-diabetic subjects who were not treated by vasoactive medication. The relationship between blood flow and systolic blood pressure for diabetic patients and for patients who were treated by enalapril was poor. The average resistance for non-diabetic patients treated by enalapril was lower than that of untreated non-diabetic subjects. For diabetic patients no significant difference in resistance between enalapril treated and untreated patients was found. The results demonstrate that for non-diabetic patients the role of microvascular resistance in hypertension is significant while it is less important in diabetic patients.

Adult↗

PubMedDate not supplied

[Histofluorometric study of catecholamines of the external layer of median eminence in the rabbit (author's transl)].

In order to study the role of the Biogenic Amines of the Median Eminence (M. E.) in the ovulatory neuroendocrinological reflex in the female rabbit, we analysed by semi-quantitative histofluorometry (Zeiss) the post-coïtum variations in formaldehyde induced fluorescence (Falck and Hillarp's technique) in the dopaminergic layer of the M. E. 116 female rabbits (62 control, 54 post-coïtum) were examined. In all the animals the dopaminergic layer of the M.E. displayed variations in fluorescence, both in thickness and intensity, along the antero-posterior axis and lateraly. In this respect, these results partly recovered those reported in the Rat (Lofstrom, 1976). Moreover, in half of the post-coïtum animals, from the 5 th min. up to the 30 th min, the intensity of the fluorescence was increased in the whole external layer. These results provide some evidence for a correlation between the variations in the Dopamine content of the M.E. and the involvement of the nervous mechanisms implied in the ovulatory neuroendocrinological reflex.

Animals↗