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Ontogeny of immunocytochemically demonstrable androgen- and androgen receptor-containing cells in the hypothalamus and adenohypophysis of the chick embryo


, : Ontogeny of immunocytochemically demonstrable androgen- and androgen receptor-containing cells in the hypothalamus and adenohypophysis of the chick embryo. Growth, Development, and Aging 58(1): 21-31

Brain sections of male chick embryos, 6.5-18.5 days of age, were examined immunocytochemically for the presence of androgen- and androgen receptor-containing cells in the hypothalamus and adenohypophyseal pars distalis. Using antibodies (Ab) against both androgens (T-Ab) and the androgen receptor (AR-Ab), single- and double-immunostained cells were located in a total of five nuclei of the anterior-, mid-, and posterior-hypothalamus, as well as in the rostral and caudal lobes of the adenohypophyseal pars distalis. From Days 9.5-12.5, the mean number of androgen-immunostained cells within the hypothalamus and pars distalis increased significantly (P < 0.01), while from Days 12.5-18.5 there was no further statistically significant increase. The results of the present investigation support previous findings which suggest that in the chick embryo the negative feedback loop of the hypothalamo-adenohypophyseal-testicular (HATest) axis is functional by the 13th day of development (Woods et al., 1989a,b). They also agree with the observations of Wilson and Glick (1970) that in the male chick embryo testosterone organizes masculine mating behavior prior to Day 13.0.

US$29.90

PMID: 8077078


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Kobayashi, S., 1983: Zen-Noh--the worlds largest farmers organization; its structure and activities. Farming Japan7(4): 58-65

Cohen A.H., 1987: Intersegmental coordinating system of the lamprey central pattern generator for locomotion. In the lamprey, Ichthyomyzon unicuspis, the wave of activity required for normal swimming movements can be generated by a central pattern generator (CPG) residing in the spinal cord. A constant phase coupling between spinal segments can be organiz...

Skutella, T.; Schwarting, R., K.W.; Huston, J., P.; Sillaber, I.; Probst, J., C.; Holsboer, F.; Spanagel, R., 1997: Infusions of tyrosine hydroxylase antisense oligodeoxynucleotide into substantia nigra of the rat: Effects on tyrosine hydroxylase mRNA and protein content, striatal dopamine release and behaviour. Modulation of the transcriptional message of tyrosine hydroxylase was investigated in vivo in the rat nigrostriatal dopamine system with unmodified antisense oligodeoxynucleotide, mismatch oligodeoxynucleotide or vehicle controls. Oligodeoxynucleo...

Mateus, C.; Fortier-Beaulieu, M.; Lhomme, C.; Rochard, F.; Castaigne, D.; Duvillard, P.; Avril, M.F., 2001: Carcinome basocellulaire de la vulve: 21 Cas. Introduction: Basal cell carcinoma (BCC) accounts for 2 to 3 p. 100 of all vulvar malignancies. Patients and methods: We report a retrospective study of 21 cases treated from 1937 to 1999. Results: Vulvar BCC's occurred in elderly patients (a...

Cronkite, E.P.; Fliedner, T.M., 1964: Granulocytopoiesis. From different experimental approaches in man and animals logical models for granulocytopoiesis are emerging. The mechanism by which stem cells are directed down the granulopoietic pathway remains unknown. DFP32 labeling of nondividing granulocyti...

Saruwatari K.; Shigenobu Y., 1989: A new karyotype of zebrina pendula schnitzl. CIS (Chromosome Information Service) (47): 5-7

Negi, S.C.; Dhiman, M.L.; Gupta, R., 1998: Large seminal vesicle cyst obstructing the ureter of a solitary kidney. British Journal of Urology 82(3): 446-447

Fernández-Prada, M.; Brandy-García, A.M.; Rodríguez-Fonseca, O.D.; Álvarez-Argüelles, M.E.; Melón-García, S., 2017: Post-vaccination varicella in a patient receiving methotrexate. Revista Espanola de Quimioterapia 30(3): 236-238

Nemni R.; Fazio R.; Corbo M.; Sacchi G.; Smirne S.; Canal N., 1984: Peripheral neuropathy associated with experimental plasma cell neoplasm in the mouse. Neurology 34(3 SUPPL 1): 285-286

Shibata, Y.; Ohzeki, H.; Sato, M.; Suzuki, Y.; Takiguchi, H., 1982: Inhibitory effect of prostaglandin A2 on Na+-K+-ATPase activity in synaptic plasma membrane of rat brain in vitro. 1. The Na+-K+-ATPase activity in the synaptic plasma membrane of rat brain was inhibited by PGA2 in vitro. 2. PGA2 concentration required for 50% inhibition was 8.91 x 10(-5) M. 3. Inhibition mode of PGA2 for both ATP and Mg2+ was uncompetitive ty...