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Biomedical subjects

M Körner

Publications and source records attributed to M Körner.

71 records · Page 4Linked to original sources
PubMed1977

Occurrence of individual trans-isomeric fatty acids in human myocardium, jejunum and aorta in relation to different degrees of atherosclerosis.

With the aid of a highly selective capillary column coated with SP 2340, individual trans-fatty acids were identified in all tissue samples studied, the values being unrelated to the degree of atherosclerosis. The mean values of total trans-acids present in human myocardium, jejunum and aorta amounted to less than 1% of the total fatty acids. The trans-acid content was composed of traces of 9-trans-tetradecenoic acid and nearly equal amounts of 9-trans-hexadecenoate and trans-octadecenoate, the double bond in the latter occurring in the delta6, delta9 and delta11 positions. 9-trans,12-trans-octadecadienoate or the corresponding mixed geometric isomers could not be identified in any sample. Additionally, significant increases of 20:4c(n-6), 22:4c(n-6) and 22:6c(n-3) acids were measured in the myocardium of patients who had died from severe atherosclerosis of the aorta and coronary arteries. The atherosclerosis was not attributable to different dietary habits, as judged from the content of linoleic acid in their adipose tissue.

Aged↗
PubMed1977

[Rheography in the periodontium. Preliminary report].

The authors describe rheography as a method for assessing the blood circulation in the periodontium. With regard to material expenditure, electrode design and application to the alveolar ridge and the data obtained, the experimental arrangement presented by the authors proved to be a rapidly applicable and informative method of investigation, the results from which will be reported later on.

Humans↗
PubMed1976

[Studies on the palpable intensity of the radial pulse (author's transl)].

Depending on the pressure of the palpating finger the radial pulse may be found differently "large" in spite of unchanged intravasal pulse pressure. In this paper the amplitude of the extravasal volume pulse is examined related to a continually diminished coupling pressure of a foto-electrical pulse detector. First, the amplitudes increase with the declining external pressure, reach a maximum and then diminish again. This is exactly the same course one gets palpating the radial pulse with the finger. The intravasal pressure amplitudes however show at the same time a different kind of course. These differences between extra- and intravasal pulsation usually can be seen in patients with undistrubed circulation. Having a vasoconstriction in the radial artery the course of the extravasal volume pulse-curve appears different and the sensation of the palpating finger, too. In this case the pulse is palpable evenly small. The differences can be explained by the changes in the pressure-builded elastic tension of the arterial wall and the stronger contraction of the vessels muscles in vasconstriction. Thus, the diagnosis vasoconstriction can be made palpating the radial pulse.

Blood Pressure↗