Pharmacology · 2023
The Effect of Zonisamide on Rat Bone Mass, Structure, and Metabolism.
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Karesova Iva, Simko Julius, Fekete Sona, Zimcikova Eva, Malakova Jana, Zivna Helena, Pavlikova Ladislava, Palicka Vladimir
Аннотация
INTRODUCTION: Our study aimed to investigate the effect of zonisamide (ZNS) on bone metabolism in the rat model.
METHODS: Eight-week-old rats were divided into four groups. The sham-operated control group (SHAM) and the control group after orchidectomy (ORX) received the standard laboratory diet (SLD). The experimental group after orchidectomy (ORX+ZNS) and the sham-operated control group (SHAM+ZNS) received SLD enriched with ZNS for 12 weeks. Bone marker concentrations in serum of receptor activator of nuclear factor kappa B ligand, PINP, and osteoprotegerin, and the levels of sclerostin and bone alkaline phosphatase in bone homogenate, were measured using an enzyme-linked immunosorbent assay. Bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry. The femurs were used for biomechanical testing.
RESULTS: We found a statistically significant reduction in BMD and biomechanical strength 12 weeks after orchidectomy of the rats (ORX). After ZNS administration to orchidectomized rats (ORX+ZNS) and the sham-operated control rats (SHAM+ZNS), there were no statistically significant changes in BMD, bone turnover markers, or biomechanical properties as compared with the ORX group and SHAM group.
CONCLUSIONS: The results suggest that administration of ZNS to rats exerts no negative effect on BMD, bone metabolism markers, or biomechanical properties.
METHODS: Eight-week-old rats were divided into four groups. The sham-operated control group (SHAM) and the control group after orchidectomy (ORX) received the standard laboratory diet (SLD). The experimental group after orchidectomy (ORX+ZNS) and the sham-operated control group (SHAM+ZNS) received SLD enriched with ZNS for 12 weeks. Bone marker concentrations in serum of receptor activator of nuclear factor kappa B ligand, PINP, and osteoprotegerin, and the levels of sclerostin and bone alkaline phosphatase in bone homogenate, were measured using an enzyme-linked immunosorbent assay. Bone mineral density (BMD) was measured by dual-energy X-ray absorptiometry. The femurs were used for biomechanical testing.
RESULTS: We found a statistically significant reduction in BMD and biomechanical strength 12 weeks after orchidectomy of the rats (ORX). After ZNS administration to orchidectomized rats (ORX+ZNS) and the sham-operated control rats (SHAM+ZNS), there were no statistically significant changes in BMD, bone turnover markers, or biomechanical properties as compared with the ORX group and SHAM group.
CONCLUSIONS: The results suggest that administration of ZNS to rats exerts no negative effect on BMD, bone metabolism markers, or biomechanical properties.