scholarly journals Nature's motility blockers: controlling human sperm motility machinery from the outside. Chemical characterization of a peritoneal fluid lipid that induces sperm immobilization

1997 ◽  
Vol 3 (3) ◽  
pp. 241-248 ◽  
Author(s):  
F Keller
Keyword(s):  
Sperm Motility ◽  
Peritoneal Fluid ◽  
Chemical Characterization ◽  
Human Sperm ◽  
Sperm Immobilization

Comparison of the Inhibitory Action of Delta-9-tetrahydrocannabinol and Petroleum Spirit Extract of Herbal Cannabis on Human Sperm Motility

1982 ◽  
Vol 1 (2) ◽  
pp. 151-154 ◽  
Author(s):  
C.Y. Hong ◽  
D.M. Chaput de Saintonge ◽  
P. Turner ◽  
J.W. Fairbairn
Keyword(s):  
Sperm Motility ◽  
Inhibitory Action ◽  
Drug Effects ◽  
Human Sperm ◽  
Major Constituent ◽  
Migration Method ◽  
Sperm Immobilization

1 Using the trans-membrane migration method to measure drug effects on human sperm motility, it is found that Δ-9-tetrahydrocannabinol is the major constituent of cannabis which inhibits sperm motility and unlike the cataleptic effect, other constituents in the petroleum spirit extract do not potentiate this effect significantly. 2 It is suggested that the mechanisms for sperm immobilization and cataleptic effects are different.

Olfactory and Chemical Characterization of Indoor Air-Towards a Psychophysical Model for Air Quality

1981 ◽  
Author(s):  
Birgitta Berglund ◽  
Ulf Berglund ◽  
Thomas Lindvall ◽  
Helene Nicander-Bredberg
Keyword(s):  
Air Quality ◽  
Indoor Air ◽  
Chemical Characterization

PURIFICATION AND PARTIAL CHEMICAL CHARACTERIZATION OF SHEEP NEUROPHYSIN

1973 ◽  
Vol 74 (2) ◽  
pp. 226-236 ◽  
Author(s):  
Michel Chrétien ◽  
Claude Gilardeau
Keyword(s):  
Amino Acid ◽  
Polyacrylamide Gel Electrophoresis ◽  
Chemical Characterization ◽  
Terminal Amino Acid ◽  
Amino Acid Determination ◽  
Pituitary Glands ◽  
Terminal Amino ◽  
Partial Chemical ◽  
Acid Determination

ABSTRACT A protein isolated from ovine pituitary glands has been purified, and its homogeneity assessed by NH2- and COOH-terminal amino acid determination, ultracentrifugation studies, and polyacrylamide gel electrophoresis after carboxymethylation. Its chemical and immunochemical properties are closely similar to those of beef and pork neurophysins, less similar to those of human neurophysins. It contains no tryptophan (like other neurophysins) or histidine (like all except bovine neurophysin-I and human neurophysins). It has alanine at the NH2-terminus and valine at the COOH-terminus. Its amino acid composition is similar to, but not identical with those of porcine and bovine neurophysins.

Laboratory Methods for the Physico-Chemical Characterization of Recombinant Allergens as Reference Standards

Alergologia ◽  
2020 ◽  
Vol 1 (4) ◽  
pp. 7
Author(s):  
Mariana Vieru ◽  
Florin-Dan Popescu ◽  
Laura Haidar ◽  
Carmen Bunu-Panaitescu
Keyword(s):  
Chemical Characterization ◽  
Reference Standards ◽  
Recombinant Allergens ◽  
Laboratory Methods ◽  
Physico Chemical
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