Ganglionic Adrenergic Action Modulates Ovarian Steroids and Nitric Oxide in Prepubertal Rat

• DELGADO Silvia Marcela

  Laboratorio de Biología de la Reproducción, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis

• CASAIS Marilina

  Laboratorio de Biología de la Reproducción, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis

• SOSA Zulema

  Laboratorio de Biología de la Reproducción, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis

• RASTRILLA Ana María

  Laboratorio de Biología de la Reproducción, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis

抄録

Both peripheral innervation and nitric oxide (NO) participate in ovarian steroidogenesis. The purpose of this work was to analyse the ganglionic adrenergic influence on the ovarian release of steroids and NO and the possible steroids/NO relationship. The experiments were carried out in the ex vivo coeliac ganglion-superior ovarian nerve (SON)-ovary system of prepubertal rats. The coeliac ganglion-SON-ovary system was incubated in Krebs Ringer-bicarbonate buffer in presence of adrenergic agents in the ganglionic compartment. The accumulation of progesterone, androstenedione, oestradiol and NO in the ovarian incubation liquid was measured. Norepinephrine in coeliac ganglion inhibited the liberation of progesterone and increased androstenedione, oestradiol and NO in ovary. The addition of α and β adrenergic antagonists also showed different responses in the liberation of the substances mentioned before, which, from a physiological point of view, reveals the presence of adrenergic receptors in coeliac ganglion. In relation to propranolol, it does not revert the effect of noradrenaline on the liberation of progesterone, which leads us to think that it might also have a “per se” effect on the ganglion, responsible for the ovarian response observed for progesterone. Finally, we can conclude that the ganglionic adrenergic action via SON participates on the regulation of the prepubertal ovary in one of two ways: either increasing the NO, a gaseous neurotransmitter with cytostatic characteristics, to favour the immature follicles to remain dormant or increasing the liberation of androstenedione and oestradiol, the steroids necessary for the beginning of the near first estral cycle.<br>

収録刊行物

• Endocrine Journal

  Endocrine Journal 53 (4), 547-554, 2006

  一般社団法人 日本内分泌学会

キーワード

• Coeliac ganglion
• Adrenergic agents
• Prepuberty
• Steroids
• Nitric oxide

詳細情報

• CRID: 1390001206300735488
• NII論文ID: 10019269922
• NII論文ID: 130004443256
• NII書誌ID: AA10901436
• DOI: 10.1507/endocrj.k05-130
• COI: 1:CAS:528:DC%2BD28Xht1SgsLnJ
• ISSN: 13484540
• ISSN: 09188959
• Web Site: http://www.jstage.jst.go.jp/article/endocrj/53/4/53_4_547/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2007071209
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可