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A sperm motility inhibitor from human seminal plasma was purified and characterized. The purification procedure includes dialysis, ion exchange chromatography on SP-Sephadex C-25 and adsorption chro...
A comparison of the alkaline proteinase activity of human seminal plasma, the seminal non-gamete cellular material and spermatozoa was made by gelatin-sodium dodecyl sulfate-polyacrylamide gel elect...
We have studied some characteristics of alpha-1,4-glucosidases in human male reproductive organs in order to obtain information on the origin of the enzyme in seminal plasma. Acid and neutral enzyme...
Human seminal plasma, freed of spermatozoa by centrifugation, inhibited binding of iodine-125 (125I)-hFSH to receptors in calf testes. Binding inhibition (BI) was seen in seminal plasma from intact ...
The authors found that DOPA/5-HTP decarboxylase was present in the human seminal plasma and that its activity was lower in fertile men than in infertile men. The Km and Vmax of the enzyme were, re...
In order to investigate the origin of an 84-kDa protein with ABH blood-typing antigen activity (p 84) and its concentration in human seminal plasma, a monoclonal antibody (mAb p 84) was produced....
Parathyroid hormone-related protein (PTHrP) is a regulatory peptide that has been associated with normal fetal growth and differentiation as well as the regulation of fetal calcium. We recently d...
The polypeptide ubiquitin, up to now almost exclusively discovered in intracellular spaces, was measured immunologically in a total of 187 samples of human seminal plasma. The values were between 1....
Total radical-trapping antioxidant potential (TRAP) measurements of human seminal plasma (N = 25) were performed by using a post-addition assay based on trapping 2,2' Azino-bis(3-ethylbenzthiazoline...
Semen rheology was studied to elucidate the biochemical basis of seminal plasma hyperviscosity. Semen proved to fit in with a power law model, by presenting a pseudoplastic behavior. Apparent vi...
Semenogelin I and II (Sg I and II) are the major components of human semen coagulum. The protein is rapidly cleaved after ejaculation by the chymotrypsin-like protease prostate-specific antigen (PSA...
Although the enhanced chemiluminescence assay is commonly used to measure the nonenzymatic total antioxidant capacity (TAC) of the human seminal plasma, it is cumbersome, expensive, and time-consu...
Previously reported data have indicated the existence of two kinds of matrix metalloproteinases (MMP-2 and MMP-9) in human seminal plasma (Shimokawa et al, 2002). Here we report the existence of com...

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