Abstract | OBJECTIVE: METHODS: Forty adult male Wistar rats were randomly divided into 4 groups of 10 rats: shame operated group (group A) and three A-ED model groups (group B, C and D). The internal pudendal arteries were isolated and ligated with 7-O nylon thread at both the main trunk and the penile branches to establish the A-ED model. ICP were tested after the operation to make sure the successful model establishment. The groups A and B were treated with saline: and the groups C and D were treated with icariin (5 mg/kg/day and 10mg/kg/day respectively) orally for 30 days. Then the ICP was measured again. The tissues of corpus cavernosum were taken and RT-PCR was used to detect the mRNA expression of nNOS, iNOS and eNOS in CC, and Western-blot was used to detect the protein expression of these NOS isoforms. RESULTS: The ICP in the group B was significantly decreased compared to the group A (P < 0.01), but the ICP values in the groups C and D were both increased compared to those in the group B (both P < 0.01). The expressions of the mRNA and protein of nNOS, iNOS, and eNOS were all decreased in the group B, however, the mRNA and protein expressions of eNOS were increased a in the groups C and D. In the group C, iNOS also increased. The expression of nNOS showed no obvious changes in the group C and group D. CONCLUSION:
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Authors | Long Tian, Zhong-Cheng Xin, Wu-Jiang Liu, Yi-Ming Yang, Gang Liu, Liang Chen, Jie Fu, Ling-Long Wang |
Journal | Zhonghua yi xue za zhi
(Zhonghua Yi Xue Za Zhi)
Vol. 84
Issue 11
Pg. 954-7
(Jun 02 2004)
ISSN: 0376-2491 [Print] China |
PMID | 15329286
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Flavonoids
- RNA, Messenger
- Nitric Oxide Synthase
- Nitric Oxide Synthase Type I
- Nitric Oxide Synthase Type II
- Nitric Oxide Synthase Type III
- Nos1 protein, rat
- Nos2 protein, rat
- Nos3 protein, rat
- icariin
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Topics |
- Animals
- Flavonoids
(pharmacology)
- Impotence, Vasculogenic
(drug therapy, enzymology)
- Male
- Nitric Oxide Synthase
(biosynthesis, genetics)
- Nitric Oxide Synthase Type I
- Nitric Oxide Synthase Type II
- Nitric Oxide Synthase Type III
- Penile Erection
(drug effects)
- Penis
(enzymology)
- RNA, Messenger
(biosynthesis, genetics)
- Random Allocation
- Rats
- Rats, Wistar
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