Abstract

PurposeOvarian hyperstimulation syndrome (OHSS) is a serious complication of controlled ovarian hyperstimulation. In this study, we hope to explore whether nintedanib, a tyrosine kinase inhibitor, can inhibit OHSS by blocking signaling of vascular endothelial growth factor in a mouse model. Considering that nintedanib been approved for the treatment of some diseases. We believe that nintedanib has important potential in the treatment of OHSS.MethodsFemale ICR mice aged 6–8 weeks with similar initial weights were used to establish the OHSS model. At 12 and 24 hours after human chorionic gonadotropin (hCG) trigger, we administered nintedanib by subcutaneous injection and analyzed the OHSS-related physiological characteristics and biochemical indices of the model mice within 48 hours after hCG-trigger.ResultsNintedanib significantly alleviated the symptoms of OHSS after hCG-trigger compared with those of OHSS group (weight change, P < 0.0001; ovarian weight, P < 0.0001, peritoneal exudation level, P < 0.01). Further investigation proved that the corpus luteum (number, P < 0.001; diameter, P < 0.0001) and luteal vessel (P < 0.0001) development were inhibited in the nintedanib administration group. Then, the vascular permeability test showed that the capillary bleeding points (P < 0.0001) were also significantly reduced in nintedanib administration group. Gene expression tests demonstrated that the intercellular connection-related genes expression in the nintedanib administration group was similar to that in the no-OHSS induced group. Further detection of coagulation and thrombosis indices indicated that the nintedanib administration in the OHSS model did not increase the risk of thrombosis or bleeding.ConclusionOur study demonstrated that nintedanib can alleviate and manage the symptoms of OHSS in a mouse model. These findings identify a feasible scheme for the prevention and treatment of OHSS in clinical practice in the future. Moreover, since the scheme can be implemented after ovulation, it will not cause potential adverse effects on gametogenesis, fertilization or embryonic development.

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