Exposure to the spaceflight environment causes adaptations in most human physiological systems, many of which are thought to affect women differently from men. Since only 11.5% of astronauts worldwide have been female, these issues are largely understudied.
View Article and Find Full Text PDFBackground The cardiovascular system is strongly dependent on the gravitational environment. Gravitational changes cause mechanical fluid shifts and, in turn, autonomic effectors influence systemic circulation and cardiac control. We implemented a tilt paradigm to (1) investigate the acute hemodynamic response across a range of directions of the gravitational vector, and (2) to generate specific dose-response relationships of this gravitational dependency.
View Article and Find Full Text PDFThe mammalian zona pellucida (ZP) consists of three glycoproteins (ZP1, ZP2 and ZP3), which are variably conserved among species at the genomic and amino acid levels. In order to evaluate the expression of ZP during ovarian development, a population of antibodies was selected that recognize species conserved antigenic domains of the three ZP proteins. Domain specific antibodies were selected from sera of rabbits immunized with all three native pig ZP proteins by elution of antibodies bound to each of the three human ZP recombinant proteins expressed from cDNAs, using the baculovirus expression system in insect cells.
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