Distribution of luteinizing hormone-releasing hormone in the upper brainstem and diencephalon of the cat: An immunocytochemical study
Identifieur interne : 001643 ( Main/Merge ); précédent : 001642; suivant : 001644Distribution of luteinizing hormone-releasing hormone in the upper brainstem and diencephalon of the cat: An immunocytochemical study
Auteurs : M. Belda [Espagne] ; R. Cove As [Espagne] ; J. A Narváez [Espagne] ; J. A Aguirre [Espagne] ; G. Tramu [France]Source :
- Brain Research Bulletin [ 0361-9230 ] ; 2000.
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Abstract
The distribution of luteinizing hormone-releasing hormone (LH-RH)-immunostained cell bodies and fibres was studied in the brainstem and diencephalon of the cat using an indirect immunoperoxidase technique. The brainstem and the thalamus were devoid of immunostained cell bodies, whereas in the hypothalamus immunopositive perikarya were observed in the supraoptic nucleus, the anterior hypothalamus, the preoptic region and in the arcuate nucleus. Our findings also showed that the hypothalamus is richer in immunostained fibres, and that in this region such fibres are more widely distributed than in the thalamus and upper brainstem. No immunopositive fibres were observed in the lower brainstem. Our results point to a more widespread distribution of LH-RH-immunostained perikarya in the cat hypothalamus than that previously reported in the cat; a similar distribution to that found in the rat, and a more restricted distribution than in primates. Additionally, our study shows a more widespread distribution of immunostained fibres in the cat brainstem and diencephalon than that previously described for other mammals. In this context, our results describe for the first time in the mammals central nervous system fibres containing LH-RH located in the stria medullaris of the thalamus, the supramammillary decussation, the laterodorsal and lateroposterior thalamic nuclei, the nucleus reuniens, the supraoptic nucleus, and the optic chiasm. Thus, our findings reveal that LH-RH-immunostained structures are widely distributed in the upper brainstem and in the diencephalon of the cat, suggesting that the peptide may be involved in several physiological functions.
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DOI: 10.1016/S0361-9230(99)00221-X
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A Narváez</name><affiliation wicri:level="4"><country xml:lang="fr">Espagne</country><wicri:regionArea>Facultad de Medicina, Departamento de Fisiologı́a, Universidad de Málaga, Málaga</wicri:regionArea><orgName type="university">Université de Malaga</orgName><placeName><settlement type="city">Malaga</settlement><region nuts="2" type="region">Andalousie</region></placeName></affiliation></author><author><name sortKey="Aguirre, J A" sort="Aguirre, J A" uniqKey="Aguirre J" first="J. A" last="Aguirre">J. A Aguirre</name><affiliation wicri:level="4"><country xml:lang="fr">Espagne</country><wicri:regionArea>Facultad de Medicina, Departamento de Fisiologı́a, Universidad de Málaga, Málaga</wicri:regionArea><orgName type="university">Université de Malaga</orgName><placeName><settlement type="city">Malaga</settlement><region nuts="2" type="region">Andalousie</region></placeName></affiliation></author><author><name sortKey="Tramu, G" sort="Tramu, G" uniqKey="Tramu G" first="G" last="Tramu">G. Tramu</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire de Neurocytochimie Fonctionnelle, Université de Bordeaux I, Talence</wicri:regionArea><placeName><region type="region" nuts="2">Aquitaine-Limousin-Poitou-Charentes</region><region type="old region" nuts="2">Aquitaine</region><settlement type="city">Talence</settlement><settlement type="city" wicri:auto="agglo">Bordeaux</settlement></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Brain Research Bulletin</title><title level="j" type="abbrev">BRB</title><idno type="ISSN">0361-9230</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2000">2000</date><biblScope unit="volume">51</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="281">281</biblScope><biblScope unit="page" to="291">291</biblScope></imprint><idno type="ISSN">0361-9230</idno></series><idno type="istex">712AE421317B30DF7615F4ACCD0E4DE32BB7DB4E</idno><idno type="DOI">10.1016/S0361-9230(99)00221-X</idno><idno type="PII">S0361-9230(99)00221-X</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0361-9230</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Feline</term><term>Hypothalamus</term><term>LH-RH</term><term>Mesencephalon</term><term>Pons</term><term>Thalamus</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The distribution of luteinizing hormone-releasing hormone (LH-RH)-immunostained cell bodies and fibres was studied in the brainstem and diencephalon of the cat using an indirect immunoperoxidase technique. The brainstem and the thalamus were devoid of immunostained cell bodies, whereas in the hypothalamus immunopositive perikarya were observed in the supraoptic nucleus, the anterior hypothalamus, the preoptic region and in the arcuate nucleus. Our findings also showed that the hypothalamus is richer in immunostained fibres, and that in this region such fibres are more widely distributed than in the thalamus and upper brainstem. No immunopositive fibres were observed in the lower brainstem. Our results point to a more widespread distribution of LH-RH-immunostained perikarya in the cat hypothalamus than that previously reported in the cat; a similar distribution to that found in the rat, and a more restricted distribution than in primates. Additionally, our study shows a more widespread distribution of immunostained fibres in the cat brainstem and diencephalon than that previously described for other mammals. In this context, our results describe for the first time in the mammals central nervous system fibres containing LH-RH located in the stria medullaris of the thalamus, the supramammillary decussation, the laterodorsal and lateroposterior thalamic nuclei, the nucleus reuniens, the supraoptic nucleus, and the optic chiasm. Thus, our findings reveal that LH-RH-immunostained structures are widely distributed in the upper brainstem and in the diencephalon of the cat, suggesting that the peptide may be involved in several physiological functions.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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