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W P Herrmann

Publications and source records attributed to W P Herrmann.

72 records · Page 4Linked to original sources
PubMed1967

Scabies.

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Adult↗
PubMedDate not supplied

Demonstration of organ-characteristic glycoproteins in human semen.

Tridacnin M, a galactosyl-specific reagent prepared from the bivalve clam Tridacna maxima (Röding) was used for the demonstration of 2 different glycosubstances with terminal galactosido units in human semen. The results obtained by immunodiffusion tests indicate that the seminal plasma contains a water-soluble glycoprotein with two carbohydrate chains, one of them having a terminal beta-galatosyl group whereas the other one seems to have a terminal N-acetyl-neuraminic acid group and a subterminal beta-galactosyl group. This glycoprotein is a secretion product of the seminal vesicles and, therefore, of diagnostic significance: it is absent in cases of bilateral occlusion of the ampullae. Another glycosubstance with terminal galactosido-residues could be demonstrated on the surface of sperm cells by agglutination reactions. This glycosubstance is an integral part of the spermatozoan membrane because it cannot be removed by repeated washings.

Chemical Precipitation↗
PubMedDate not supplied

[Determination of the frequency of Y-chromatin positive spermatozoa in relation to the parameters of spermiograms].

The percentage of y chromatin positive spermatozoa had been determined using the fluorescence microsopce technique. After staining procedure with Atebrin we counted 44.1 (+/- 3.9)% y poistive sperms, after staining with Quinacrine mustard the amount was 48,4 (+/- 4,3)%. With statistical methods we examined the correlation of the percentage y sperms to the single parameters of the semen analysis. So the sperm count, the motility, morphology, pH and fructose of seminal plasma had been compared with their influence upon the X-Y relationship of spermatozoa. In conclusion of our results there was no considerable variability in the X-Y sperm ratio by the different parameters of the semen analysis.

Cell Count↗