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      Darkness-Elicited Changes in Rat Reproduction Not Mediated by Pineal Gland

      ,

      Hormone Research in Paediatrics

      S. Karger AG

      Gonadotropin, Progesterone, Pineal gland, Darkness, Pregnancy

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          Abstract

          Serum and pituitary LH, prolactin and progesterone changes recorded in parturient rats exposed to continuous darkness throughout pregnancy were not prevented by early ablation of the pineal gland. Similarly, the shorter gestation period observed in rats kept in continuous darkness and the overwhelming tendency of rats in general to deliver during the light period (real or subjective), persisted in the pinealectomized animals. Darkness-induced endocrine changes in rat dams during the perinatal period appear not to be mediated by the pineal gland.

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          Author and article information

          Journal
          HRE
          Horm Res Paediatr
          10.1159/issn.1663-2818
          Hormone Research in Paediatrics
          S. Karger AG
          1663-2818
          1663-2826
          1982
          1982
          25 November 2008
          : 16
          : 6
          : 385-391
          Affiliations
          Department of Pharmacology, Schools of Medicine and Pharmacy, Hebrew University, Jerusalem, Israel
          Article
          179529 Horm Res 1982;16:385–391
          10.1159/000179529
          7152488
          © 1982 S. Karger AG, Basel

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          Pages: 7
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