摘要
目的分析尼古丁对大鼠牙槽骨和颌骨内钙磷含量以及碱性磷酸酶(ALP)活性的影响。方法将20只5周龄健康雄性Wistar大鼠随机分为实验组和对照组,实验组每天腹腔注射尼古丁0.73 mg.kg-1,对照组腹腔注射等量生理盐水,3个月后处死取材。浓酸消化法检测牙槽骨和颌骨内钙磷含量,改良Reddi法检测牙槽骨和颌骨内ALP活性。采用SPSS 16.0统计软件分别行独立样本的t检验。结果与对照组相比较,实验组牙槽骨内和颌骨内钙磷含量均明显减少,差异均有统计学意义(P<0.05);ALP活性无明显变化(P>0.05)。实验组中牙槽骨与颌骨比较,骨钙磷含量和ALP活性差异无统计学意义(P>0.05)。结论尼古丁下调大鼠牙槽骨和颌骨内钙磷含量,对ALP活性的影响不明显。
Objective To analyze the effects of nicotine on the bone calcium and phosphorus content and alkaline phosphatase （ALP） activity in rat alveolar bone and mandible. Methods Twenty health male Wistar rats of five week, of age were randomly assigned to two groups and received daily intraperitoneal injections for three months as follows Saline solution for control group, nicotine 0.73 mg·kg^-1·d^-1 for experimental group. The bone calcium phosphorus conten were detected by concentrated acid digestion method and the ALP activity was examined by improved Reddi method Results Compared to the control group, bone calcium and phosphorus content was lower in the experimental group （P〈0.05）, ALP activity had no statistical significance （P〉0.05）. Bone calcium phosphorus and ALP activity in diffe- rent parts had no statistical significance （P〉0.05）. Conclusion The nicotine reduces calcium phosphorus depositior of jaw bone, but has no obvious influence to ALP activity.
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
2013年第3期225-227,231,共4页
West China Journal of Stomatology
基金
黑龙江省科技厅攻关计划基金资助项目(GC05C416)
哈尔滨市科技局优秀学科带头人基金资助项目(2009RFXXS214)
关键词
尼古丁
牙槽骨
颌骨
钙
磷
碱性磷酸酶
nicotine： alveolar bone
jaw bone： calcium： phosphorus
alkaline phosphatase
