Seminal Plasma Proteins: What Role Do They Play?

Seminal plasma proteins: what role do they play?

PROBLEM Semen is a heterogeneous and complex cell suspension in a protein-rich fluid with different functions, some of them well known, others still obscure. METHOD OF STUDY This paper reviews, comparatively, our current knowledge on the growing field of proteomics of the SP and its relevance in relation to the in vivo situation, for the sake of reproductive biology, diagnostics and treatment...

Breastfeeding: what role do fathers play?

Antioxidants: what role do they play in physical activity and health?

Exercise appears to increase reactive oxygen species, which can result in damage to cells. Exercise results in increased amounts of malondialdehyde in blood and pentane in breath; both serve as indirect indicators of lipid peroxidation. However, not all studies report increases; these equivocal results may be due to the large intersubject variability in response or the nonspecificity of the ass...

Staphylococcal superantigens: do they play a role in sepsis?

In Staphylococcus aureus, 19 different superantigens (SAgs) have been described. Their genes are all located on mobile genetic elements, such as pathogenicity islands, plasmids, and phages. SAgs bypass conventional antigen recognition by directly cross-linking major histocompatibility complex class II (MHCII) molecules on antigen-presenting cells with T cell receptors. This leads to massive T c...

Enterprise Knowledge Portals: What They Are and What They Do

The Enterprise is a continuous, dynamic “swirl” of problem-solving knowledgerelated Interactions from which knowledge is produced and integrated with the business processes of the enterprise. For a given problem generated by a business process, it is useful to abstract from the swirl and to conceptualize an iteration of a knowledge life cycle encompassing knowledge processes targeted on solving...