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post coitum
The present study describes a simple, rapid protocol for culture for limb tissue from individual 10.5-day post coitum mouse embryos that supports cartilage differentiation over a six-day period.
      
Nachweisbarkeitsdauer der verschiedenen Samenflüssigkeitsbestandteile in Vaginalabstrichen post coitum
      
This study provides transmission electron microscopic observations on the early morphogenesis (from days 25-35 post coitum) of the canine posterior lens capsule, the tunica vasculosa lentis (TVL) posterior and the anterior part of the vitreous body.
      
These cells may be released into the uterine lumen until 210 h post coitum.
      
Endometrium of early pregnancy (implantation chamber, interblastocyst endometrium; 5-8 days post coitum, d p.c.) was compared with specimens obtained at hCG-induced pseudopregnancy (p.
      
GS-I and BPA, which showed similar binding patterns, preferentially bound to the plasma membrane and small dense bodies (SDB) of germ cells in both testes and ovaries during the 12th to 14th day post coitum (p.c.).
      
Neither Griffonia simplicifolia agglutinin (GS)-II nor succinyl-wheat germ agglutinin (s-WGA) bound to the 1st and 2nd TGCs on day 6.5 post coitum (p.c.), but did so from days 8.5 to 12.5 p.c.
      
Between the 3rd and 6th day post coitum the dry substance of uterine fluid contains nearly 60% peptide chains, on the 6th day 19 h p.c.
      
A series of figures on structural changes of the blastocyst between the 4 and the 8 day post coitum is compiled.
      
61 and 80 h post coitum in which embryos passed from the 8-cell stage to the 16-32 cell stage.
      
Histological analyses of lethal yellow mouse embryos (Ay/Ay)at 90 and 132 h Post Coitum
      
These labelled so-called mesectodermal cells were found in all embryos studied, ranging in age from 8.7 to 9.3 days post coitum.
      
As shown previously the neozona begins to replace the zona pellucida from the 4th day post coitum (d p.c.) on (Denker and Gerdes 1979).
      
The localization of this substance was studied by light and electron microscopy, in 22 rat embryos ranging between 10 and 15 days post coitum.
      
Under physiological conditions the zona pellucida disappears in the rabbit between Day 3 and early Day 4 post coitum (p.c.) and is replaced by a new layer, the neozona.
      
Under these culture conditions, day 6 post coitum blastocysts increased their diameter within 24 h to 80% of that of day 7 blastocysts grown in vivo.
      
However, unlike the chick, where RXRγ is expressed from the onset of neural crest migration, rat RXRγ expression in the dorsal root ganglia and trigeminal ganglia was detectable at 14.5 days post coitum (dpc), but not at 13, 12, or 11 dpc.
      
At later stages, germ cell immunoreactivity could be correlated with stages of ovarian differentiation, being reduced or absent between germ cells at 16 days post coitum, when ovigerous cords become dissociated as a prelude to follicle formation.
      
Stronger staining reappeared briefly at 17 days post coitum, the time of follicular cell attachment to oocytes, before waning again 2 days later.
      
Similarly, immunoreactivity in the differentiating testis was initially restricted to the germ cell population but pre-Sertoli cells were strongly positive between 16 and 19 days post coitum.
      
 

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