The value of applying a melatonin antagonist (Luzindole) in improving the success rate of the bipedal rat scoliosis model

Autor: Shuo Yang, Chaojun Zheng, Jianyuan Jiang, Feizhou Lu, Xinlei Xia, Wei Zhu, Xiang Jin, Xiaosheng Ma
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: BMC Musculoskeletal Disorders, Vol 18, Iss 1, Pp 1-5 (2017)
Druh dokumentu: article
ISSN: 1471-2474
DOI: 10.1186/s12891-017-1500-x
Popis: Abstract Background An ideal animal model has always been the key to research the pathogenesis and treatment of adolescent idiopathic scoliosis (AIS), while available methods have obvious disadvantages. The deficiency of melatonin has been proved relating to AIS. In this research, we intended to apply Luzindole, the melatonin antagonist, in bipedal rat model, for the block of combination of melatonin and its receptor, to inhibit the melatonin effect, and then to understand whether this method can effectively improve the scoliosis rate of bipedal rat model, and investigate the role of melatonin in scoliosis. To investigate the feasibility of improving the success rate of bipedal rat scoliosis model via intraperitoneal injection of melatonin antagonist (Luzindole). Methods A total of 60 3-weeks-old Sprague-Dawley rats were included in this study, and were divided into 3 groups (A, B and C). Each group included 20 rats. Osteotomy of the bilateral proximal humerus and proximal tailbone was performed in group A and group B; intraperitoneal injection of Luzindole (0.2 mg/kg) was performed in group A and group C. X-rays were taken before the surgery, 1 month after the surgery, 3 months after the surgery, and 6 months after the surgery, to calculate the Cobb’s angle of the spine (>10° was considered scoliosis). The weight of every rat was also measured at the same time. Rats were euthanized 6 months after surgery to determine the calmodulin level in thrombocytes. Results The rate of scoliosis in group A (14/20) was significantly higher than those in group B (6/20) and group C (0/20) (P
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