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The formation and maturation of the outer epithelial layer is essential for maximal alphafetoprotein (AFP) production during differentiation of F9 embryoid bodies in the presence of 5 X 10(-8) M retinoic acid (Grover et al., 1983. J. Cell Biol. 96:1690-1696). The critical phase is between the third and the fourth day when the components of the extracellular(More)
CA1 pyramidal neurons are the final integrators of information flow leaving the hippocampus, yet are singularly vulnerable to activity-dependent cell death. Zinc (Zn) entry into cells may add to this vulnerability. Here, we find that Slc39a1 and Slc39a3, members of the Zip (Zrt/Irt-like protein) plasmalemmal Zn transporter family, are predominantly(More)
Nitric oxide synthase (NOS) enzymes synthesize nitric oxide, a signal for vasodilatation and neurotransmission at low concentrations and a defensive cytotoxin at higher concentrations. The high active site conservation among all three NOS isozymes hinders the design of selective NOS inhibitors to treat inflammation, arthritis, stroke, septic shock and(More)
The effects of aging in the female rat were analyzed in terms of tyrosine hydroxylase (TH) gene expression and serum prolactin levels. The number of tuberoinfundibular dopaminergic (TIDA) neurons and the concentration of TH mRNA per cell was greater in 16- to 18-month-old rats than in 25-month-old rats. The amount of TH immunostaining was more intense in(More)
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