Výsledky vyhledávání - "C. V. V. Helena"

Autor: Amanda Welch, C. V. V. Helena, Ian Street

Publikováno v: Science (New York, N.Y.). 357(6357)

Over the past few years, all three of us have left academia. It was the right decision for each of us, but we still struggled with uncertainty and a feeling of failure, and we could find little community support. We thought that sharing our experienc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a103a82b2b431055d4e952b3ca795d21
https://pubmed.ncbi.nlm.nih.gov/28935807

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Release of Norepinephrine in the Preoptic Area Activates Anteroventral Periventricular Nucleus Neurons and Stimulates the Surge of Luteinizing Hormone

Autor: Cristiane M. Leite, Leonardo B. D. Mendonça, Celso Rodrigues Franci, Bruna Kalil, Ruither O. G. Carolino, Maristela O. Poletini, Janete Aparecida Anselmo-Franci, Richard Bertram, C. V. V. Helena, Raphael E. Szawka, Marcelo Picinin Bernuci

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The role of norepinephrine (NE) in regulation of LH is still controversial. We investigated the role played by NE in the positive feedback of estradiol and progesterone. Ovarian-steroid control over NE release in the preoptic area (POA) was determine

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a83644fa8bcfcab57ff178176f4be091
https://doi.org/10.1210/en.2012-1302

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Modulatory role of locus coeruleus and estradiol on the stress response of female rats

Autor: Celso Rodrigues Franci, Janete Aparecida Anselmo-Franci, Isac Alexandre Ferreira-Silva, C. V. V. Helena, Aldo Bolten Lucion

Publikováno v: Endocrine. 35:166-176

The activity of the hypothalamic-pituitary-adrenal axis is modulated by the norepinephrinergic system and, in females, also by the ovarian hormones. We investigated the role of ovarian steroids and the locus coeruleus (LC) on stress-induced corticost

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c2ebc2d1f2b776f8043a7aacdbdc53f
https://doi.org/10.1007/s12020-008-9139-x

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Prolactin secretory surge during estrus coincides with increased dopamine activity in the hypothalamus and preoptic area and is not altered by ovariectomy on proestrus

Autor: Celso Rodrigues Franci, C. V. V. Helena, Janete Aparecida Anselmo-Franci, Raphael E. Szawka, Gisele Vieira Rodovalho

Publikováno v: Brain Research Bulletin. 73:127-134

Prolactin (PRL) secretory surges have been reported on the afternoons of both proestrus and estrous in cycling rats. As neuroendocrine regulation of estrous PRL surge is poorly understood, the present study aimed to investigate the involvement of hyp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df0c33ad7370682598eb532282deb145
https://doi.org/10.1016/j.brainresbull.2007.03.001

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Influence of dynorphin on estradiol- and cervical stimulation-induced prolactin surges in ovariectomized rats

Autor: Richard Bertram, C. V. V. Helena, Ruth Cristancho-Gordo, Andrea M. Stathopoulos, Arturo E. Gonzalez-Iglesias

Publikováno v: Endocrine. 53(2)

Prolactin is an anterior pituitary hormone necessary for fertility, pregnancy maintenance, lactation, and aspects of maternal behavior. In rodents, there is a surge of prolactin on the afternoon of proestrus, and a semi-circadian pattern of prolactin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::065cba9d61d17183fa2bf6dd8be8a461
https://pubmed.ncbi.nlm.nih.gov/27038317

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KNDy Neurons Modulate the Magnitude of the Steroid-Induced Luteinizing Hormone Surges in Ovariectomized Rats

Autor: Bruna Kalil, Richard Bertram, Ruither O. G. Carolino, Veronika V. Pogrebna, Andrea M. Stathopoulos, Natalia Toporikova, Janete Aparecida Anselmo-Franci, C. V. V. Helena

Kisspeptin is the most potent stimulator of LH release. There are two kisspeptin neuronal populations in the rodent brain: in the anteroventral periventricular nucleus (AVPV) and in the arcuate nucleus. The arcuate neurons coexpress kisspeptin, neuro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8804bf9d770daab396e731cf8215e21
https://europepmc.org/articles/PMC4606747/

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Changes in α-estradiol receptor and progesterone receptor expression in the locus coeruleus and preoptic area throughout the rat estrous cycle

Autor: Maristela O. Poletini, Celso Rodrigues Franci, Gilberto Luiz Sanvitto, Shinji Hayashi, C. V. V. Helena, Janete Aparecida Anselmo-Franci

Publikováno v: Journal of Endocrinology. 188:155-165

We have previously shown that the locus coeruleus (LC) is essential for triggering surges of LH. Since LC neurons are responsive to estradiol, which induces progesterone receptor (PR) expression, this study aimed to investigate whether LC neurons exp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::509456413efaa8a95bed8052435b1df8
https://doi.org/10.1677/joe.1.06268

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Neonatal handling and reproductive function in female rats

Autor: Cármen Marilei Gomes, C. V. V. Helena, Aldo Bolten Lucion, Janete Aparecida Anselmo-Franci, Charlis Raineki, Gilberto Luiz Sanvitto, Celso Rodrigues Franci, Gabriela Sentena Severino, P. Ramos de Paula

Publikováno v: Journal of Endocrinology. 184:435-445

Neonatal handling induces anovulatory estrous cycles and decreases sexual receptivity in female rats. The synchronous secretion of hormones from the gonads (estradiol (E2) and progesterone (P)), pituitary (luteinizing (LH) and follicle-stimulating (F

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ec4960cd61d3f48d0d6524532971d83
https://doi.org/10.1677/joe.1.05907

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Direct stimulatory effects of oxytocin in female rat gonadotrophs and somatotrophs in vitro: comparison with lactotrophs

Autor: Joël Tabak, Richard Bertram, Ruth Cristancho-Gordo, Arturo E. Gonzalez-Iglesias, José A. Arias-Cristancho, C. V. V. Helena, Patrick A. Fletcher

Publikováno v: Endocrinology. 156(2)

The peptide oxytocin (OT) is secreted by hypothalamic neurons and exerts numerous actions related to reproduction. OT stimulation of prolactin secretion in female rats is important during the estrous cycle, pregnancy, and lactation. Here we report th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5661ad42a6d08026014862ebd1c40d33
https://pubmed.ncbi.nlm.nih.gov/25406939

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Cervical stimulation activates A1 and locus coeruleus neurons that project to the paraventricular nucleus of the hypothalamus

Autor: Richard Bertram, Raphael E. Szawka, De’Nise T. McKee, C. V. V. Helena, Marc E. Freeman, Maristela O. Poletini

Publikováno v: Brain research bulletin. 88(6)

In female rats, stimulation of the uterine cervix during mating induces two daily surges of prolactin. Inhibition of hypothalamic dopamine release and stimulation of oxytocin neurons in the paraventricular nucleus (PVN) are required for prolactin sec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9414410b467c542670b2d6ba760105d
https://pubmed.ncbi.nlm.nih.gov/22732530

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