Cytoarchitectural analysis of the quail preoptic area. Evidence for a sex-related dimorphism in the medial preoptic nucleus

Panzica, Giancarlo; Viglietti-Panzica, Carla; Fiori, Maria Grazia; Calcagni, Maurizio; Anselmetti, Giancarlo; Balthazart, Jacques

doi:10.1080/11250008709355550

Article (Scientific journals)

Cytoarchitectural analysis of the quail preoptic area. Evidence for a sex-related dimorphism in the medial preoptic nucleus

Panzica, Giancarlo; Viglietti-Panzica, Carla; Fiori, Maria Grazia et al.

1987 • In Bolletino di zoologia, 54, p. 13 - 17

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10.1080/11250008709355550

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Keywords :

Birds; Cytoarchitecture; Hypothalamus; Medial Preoptic Nucleus; Sexual dimorphism; Animal Science and Zoology

Abstract :

[en] Studies using the Nissl method on thick paraffin sections of the preoptic region of the Japanese quail hypothalamus reveal a complex cytoarchitecture with several differentiated nuclei. The most prominent nucleus is the medial preoptic nucleus whose staining and volume appear sexually dimorphic. A higher number of intensely stainable neurons are present in males than in females, probably reflecting different metabolic rates in the two sexes. The volume of the medial preoptic nucleus is also larger (40%) in males than in females. Present results represent the first description of a sex-related dimorphism in the hypothalamus of non-mammalian vertebrates.

Disciplines :

Biochemistry, biophysics & molecular biology
Zoology

Author, co-author :

Panzica, Giancarlo; Dipartimento di Anatomia e Fisiologia umana, Sezione di Neuroscienze, Università di Torino, Torino, 1-10126, Italy

Viglietti-Panzica, Carla; Dipartimento di Anatomia e Fisiologia umana, Sezione di Neuroscienze, Università di Torino, Torino, 1-10126, Italy

Fiori, Maria Grazia; Dipartimento di Anatomia e Fisiologia umana, Sezione di Neuroscienze, Università di Torino, Torino, 1-10126, Italy

Calcagni, Maurizio; Dipartimento di Anatomia e Fisiologia umana, Sezione di Neuroscienze, Università di Torino, Torino, 1-10126, Italy

Anselmetti, Giancarlo; Dipartimento di Anatomia e Fisiologia umana, Sezione di Neuroscienze, Università di Torino, Torino, 1-10126, Italy

Balthazart, Jacques ; Université de Liège - ULiège > > Biochimie générale et comparée

Language :

English

Title :

Cytoarchitectural analysis of the quail preoptic area. Evidence for a sex-related dimorphism in the medial preoptic nucleus

Publication date :

1987

Journal title :

Bolletino di zoologia

ISSN :

0373-4137

Publisher :

Taylor & Francis, United Kingdom

Volume :

Pages :

13 - 17

Additional URL :

http://www.tandfonline.com/doi/pdf/10.1080/11250008709355550

Funding text :

This work was supported by grants from MPI, by a grant from the Belgian FNRS to J. B., and was also supported by a grant from the FRFC number 2.4158.80 to Professor E. Schoffeniels. The cooperation between the Italian and Belgian groups was supported by a NATO grant (RG164).

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