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JaLCDOI 10.18926/AMO/40129
FullText URL 64_4_219.pdf
Author Doi, Maho| Miyazaki, Ikuko| Nagamachi, Tomoko| Shinomiya, Kazuaki| Matsunaga, Hisashi| Sendo, Toshiaki| Kawasaki, Hiromu| Asanuma, Masato| Gomita, Yutaka| Kitamura, Yoshihisa|
Abstract We examined the influence of chronic adrenocorticotropic hormone (ACTH) treatment on the number of Ki-67-positive cells in the dentate gyrus of the hippocampus in rats. ACTH treatment for 14 days decreased the number of such cells. The administration of imipramine or lithium alone for 14 days had no effect in saline-treated rats. The effect of ACTH was blocked by the administration of imipramine. Furthermore, the coadministration of imipramine and lithium for 14 days significantly increased the number of Ki-67-positive cells in both the saline and ACTH-treated rats. The coadministration of imipramine and lithium normalized the cell proliferation in the dentate gyrus of the hippocampus in rats treated with ACTH.
Keywords ACTH imipramine lithium proliferation Ki-67
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2010-08
Volume volume64
Issue issue4
Publisher Okayama University Medical School
Start Page 219
End Page 223
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 20802538
Web of Science KeyUT 000281384400002
JaLCDOI 10.18926/AMO/40128
FullText URL 64_4_213.pdf
Author Otani, Hiroyuki| Otsuka, Fumio| Inagaki, Kenichi| Suzuki, Jiro| Makino, Hirofumi|
Abstract Aldosterone production occurs in the adrenal cortex, and is regulated primarily by angiotensin II (Ang II), potassium and adrenocorticotropin (ACTH). In the presence of the aldosterone stimulators, steroidogenesis is further governed by local autocrine and/or paracrine factors in the adrenal cortex. We reported the presence of functional bone morphogenetic protein (BMP) system in the adrenal cortex and also demonstrated that BMP-6 increases Ang II-induced aldosterone production, which could be involved in the "aldosterone breakthrough" phenomenon. Aldosterone breakthrough is the phenomenon by which circulating aldosterone concentrations increase above pre-treatment levels after long-term therapy with ACE inhibitors or Ang II type 1 receptor antagonists (ARB). This phenomenon may lead to important clinical consequences since increased aldosterone in a high-salt state facilitates cardiovascular and renal damage in hypertensive patients. We found that long-term ARB treatment reverses the reduction of aldosterone synthesis by adrenocortical cells, thereby causing "cellular aldosterone breakthrough". The availability of BMP-6 in the adrenal cortex may be at least partly involved in the occurrence of cellular escape from aldosterone suppression under chronic treatment with ARB.
Keywords adrenal cortex angiotensin II aldosterone bone morphogenetic protein
Amo Type Review
Publication Title Acta Medica Okayama
Published Date 2010-08
Volume volume64
Issue issue4
Publisher Okayama University Medical School
Start Page 213
End Page 218
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 20802537
Web of Science KeyUT 000281384400001
Author Inoue, Seiji|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Hosokawa, Shinobu|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Isobe, Midori|
Published Date 2010-06-30
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Content Type Thesis or Dissertation
Author Kojo, Shoichiro|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Kikumoto, Yoko|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Katsumata, Atsushi|
Published Date 2010-06-30
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Content Type Thesis or Dissertation
Author Otsuka, Atsushi|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Tanaka, Masamichi|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Hashizume, Kenzo|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Aochi, Seiko|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Nishiyama, Yasuhiro|
Published Date 2010-06-30
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Content Type Thesis or Dissertation
Author Yoshida, Hidenori|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Kotaka, Tatsuya|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Takahata, Hiroyuki|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Kawabata, Takuya|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author Suemitsu, Shunsuke|
Published Date 2010-06-30
Publication Title
Content Type Thesis or Dissertation
Author 野崎 貴博| 中村 大介| 光本 順| 能城 修一| 佐々木 由香|
Published Date 2006-03-15
Publication Title 岡山大学構内遺跡発掘調査報告
Volume volume22
Content Type Research Paper