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PECAM-1 is required for transendothelial migration of leukocytes
Platelet/endothelial cell adhesion molecule 1 (PECAM-1; CD31) is crucial to the process of leukocyte transmigration through intercellular junctions of vascular endothelial cells. A monoclonalExpand
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INSECT SPERM: THEIR STRUCTURE AND MORPHOGENESIS
  • D. Phillips
  • Biology, Medicine
  • The Journal of cell biology
  • 1 February 1970
The thorough descriptive studies by the early cytologists Meves (1901, 1907), Retzius (1904, 1909), Bowen (1920, 1922 a-c, 1924), Pollister (1930), and Johnson (1931) provided later workers with aExpand
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Differential regulation of steroidogenic enzymes during differentiation optimizes testosterone production by adult rat Leydig cells.
The postnatal differentiation of rat Leydig cells may be subdivided into three stages based on morphology and steroid production. The purpose of this study was to clarify the developmental mechanismsExpand
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Human genital epithelial cells capture cell-free human immunodeficiency virus type 1 and transmit the virus to CD4+ Cells: implications for mechanisms of sexual transmission.
Sexual transmission of human immunodeficiency virus (HIV) accounts for the majority of new infections worldwide. However, the mechanism of viral transmission across the mucosal barrier is poorlyExpand
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Morphogenetic factors influencing the shape of the sperm head.
Abstract There is abundant evidence based upon study of both protozoa and metazoa that microtubules are involved in the establishment and maintenance of cell shape. It has also been suggested thatExpand
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Development of spermatozoa in the rhea
We have examined the ultrastructural changes that take place during spermiogenesis in the rhea. Spermatozoa are characterized by a curved head a midpiece. A thin rod extends from the anterior tip ofExpand
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The fine structure and development of the neck region of the mammalian spermatozoon
The cross‐striated connecting‐piece in the neck region of the mammalian spermatozoon develops from material that seems to arise between the triplets in the wall of both proximal and distalExpand
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Corticosteroid 11β-Dehydrogenase in Rat Testis*
Corticosteroid 11 beta-dehydrogenase, the enzyme that catalyzes the oxidation of the biologically active steroid cortisol to its inactive metabolite cortisone, is present in testis. Since excessExpand
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Attachment of boar sperm to mucosal explants of oviduct in vitro: possible role in formation of a sperm reservoir.
Ejaculated boar sperm were incubated with explants of porcine oviductal mucosa that had been dissected from the isthmic and ampullar regions of gilts. Sperm bound within minutes to the epithelialExpand
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