Expression of inducible nitric oxide synthase messenger RNA, but not guanylate cyclase messenger RNA, depends on gestational age in rat myometrium

T. Okawa, K. Asano, H. Takahashi, S. Hashimoto, H. Anbe, A. Sato, Y. P. Vedernikov, George Saade, R. E. Garfield

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We studied the expression of inducible nitric oxide (NO) synthase (iNOS) and soluble guanylate cyclase (sGC) mRNAs in pregnant rat myometrium. Expression of iNOS and sGC α1, β1 and β2 mRNA was analyzed in non-pregnant and pregnant (days 10, 14, 17 and 21) Wistar rats by reverse transcription-polymerase chain reaction. Expression of iNOS mRNA increased during pregnancy but decreased on day 21 of gestation. Expression of GC α1 mRNA was greater than GC β1 mRNA at all time points. Expression of uterine GC α1 and GC β1 mRNA did not change significantly during pregnancy and did not differ significantly from non-pregnant levels. The values of sGC β2 mRNA were below the limit of detection. In conclusion, the expression of iNOS mRNA increased during pregnancy in the myometrium and decreased at term, while the expression of sGC mRNA was not affected by pregnancy. Thus, it is the changes in NO production, rather than changes in its target, that are responsible for uterine quiescence during pregnancy and initiation of labor.

Original languageEnglish (US)
Pages (from-to)146-151
Number of pages6
JournalGynecological Endocrinology
Volume19
Issue number3
DOIs
StatePublished - Sep 2004
Externally publishedYes

Fingerprint

Myometrium
Guanylate Cyclase
Nitric Oxide Synthase Type II
Gestational Age
Messenger RNA
Pregnancy
Reverse Transcription
Limit of Detection
Wistar Rats
Nitric Oxide
Polymerase Chain Reaction
GC 1 compound
Soluble Guanylyl Cyclase

Keywords

  • iNOS
  • mRNA
  • Pregnancy
  • Rat
  • Soluble guanylate cyclase
  • Uterus

ASJC Scopus subject areas

  • Endocrinology
  • Obstetrics and Gynecology

Cite this

Expression of inducible nitric oxide synthase messenger RNA, but not guanylate cyclase messenger RNA, depends on gestational age in rat myometrium. / Okawa, T.; Asano, K.; Takahashi, H.; Hashimoto, S.; Anbe, H.; Sato, A.; Vedernikov, Y. P.; Saade, George; Garfield, R. E.

In: Gynecological Endocrinology, Vol. 19, No. 3, 09.2004, p. 146-151.

Research output: Contribution to journalArticle

Okawa, T. ; Asano, K. ; Takahashi, H. ; Hashimoto, S. ; Anbe, H. ; Sato, A. ; Vedernikov, Y. P. ; Saade, George ; Garfield, R. E. / Expression of inducible nitric oxide synthase messenger RNA, but not guanylate cyclase messenger RNA, depends on gestational age in rat myometrium. In: Gynecological Endocrinology. 2004 ; Vol. 19, No. 3. pp. 146-151.
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