Tamay AG, Guvenal T, Micili SC, Yildirim Y, Ozogul C, Koyuncu FM, Koltan SO. Evaluation of the effects of gonadotropin-releasing hormone antagonist (GnRH-ant) and agonist (GnRH-a) in the prevention of postoperative adhesion formation in a rat model with immunohistochemical analysis.
Fertil Steril 2011;
96:1230-3. [PMID:
21963228 DOI:
10.1016/j.fertnstert.2011.09.001]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2011] [Revised: 08/25/2011] [Accepted: 09/01/2011] [Indexed: 11/24/2022]
Abstract
OBJECTIVE
To investigate the effects of GnRH antagonist (GnRH-ant) and agonist (GnRH-a) in the prevention of postoperative pelvic adhesions by a visual scoring system and immunohistochemical methods in a rat uterine horn model.
DESIGN
Controlled experimental animal study.
SETTING
Animal laboratory at an academic research environment.
ANIMAL(S)
Twenty-one Wistar albino rats.
INTERVENTION(S)
Rats were randomized into three groups. One week before the operation the rats received either GnRH-ant or GnRH-a or saline solution; they then underwent surgical laparotomy, and both uterine horns were traumatized by a scalpel. Three weeks later, all rats were sacrificed and extension and severity of the adhesions in each group were scored by a visual scoring system. Adhesion tissues were evaluated immunohistochemically for vitronectin and u-PAR.
MAIN OUTCOME MEASURE(S)
Scores of extend and severity of adhesions and staining of vitronectin and u-PAR.
RESULT(S)
The extent of adhesion scores were 1.85 ± 0.86, 0.78 ± 1.05, and 0.42 ± 0.64, and the severity of adhesion scores were 1.71 ± 0.91, 0.57 ± 0.85, 0.50 ± 0.75 for control, GnRH-ant, and GnRH-a groups, respectively. The extent and severity of adhesions were significantly lower in both GnRH-ant and GnRH-a groups when compared with the control group. Adhesion extent scores in the GnRH-a group were lower than in the GnRH-ant group, but this difference was not significant. vitronectin and u-PAR staining were significantly greater in both the GnRH-ant and GnRH-a groups than in the control group.
CONCLUSION(S)
GnRH-ant as well as GnRH-a reduced postoperative adhesion formation in a rat model. This finding was supported immunohistochemically by vitronectin and u-PAR staining.
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