新疆地区汉族人群ORAI 1基因rs12313273多态性与尿路含钙结石关系的研究

目的探讨新疆地区汉族泌尿系含钙结石与钙释放激活钙通道调节分子1(Calcium release-activated calcium modulator 1,ORAI1)基因多态性之间的关系。方法选择198例新疆地区汉族泌尿系草酸钙结石患者(病例组)和199例正常对照者(对照组),应用Sna Pshot方法对ORAI 1基因位点rs12313273的基因型及等位基因频率进行检测,并分析其与草酸钙结石发病的相关性以及对血钙、24h尿钙水平的影响。结果 ORAI 1基因位点rs12313273的基因型分布均符合Hardy-Weinberg平衡。病例组和对照组ORAI 1基因位点rs12313273基因型分布及等位基因频率差异均无统计学意义(P0.05)。其中病例/对照组中等位基因频率分别为C=112(28.3%)/116(29.1%),T=284(71.7%)/282(70.9%)。该基因位点多态性与血清钙、24 h尿钙排泄量无相关性。结论 ORAI 1基因位点rs12313273多态性与汉族含钙结石无相关性,可能不是新疆地区汉族含钙尿结石结石发病的危险因子。     

白细胞介素18基因编码区105位点基因型多态性与草酸钙肾结石病相关性研究

目的探讨白细胞介素18(IL-18)基因编码区第105位点基因多态性与草酸钙肾结石病的关系。方法选取2010年6月至2011年10月在深圳市第二人民医院泌尿外科就诊的60例尿路结石患者列为草酸钙结石组,将同期来医院健康查体的志愿者60例作为对照组,用聚合酶链反应-限制性片段长度多态性方法检测所有研究对象的IL-18基因编码区第105位点基因型。结果经过TaqⅠ酶切的IL-18 DNA片段可分为三种基因型:AA(148 bp)、AC(148、123、25 bp)及CC(123、25 bp),草酸钙结石组AC+CC基因型(46.6%,28/60)与对照组(21.6%,13/60)相比有统计学意义(P<0.01),等位基因C在草酸钙结石组(25%,30/120)和对照组(10.8%,13/120)频率分布相比有统计学意义(P<0.01)。结论 IL-18基因编码区第105位点基因型多态性与草酸钙肾结石病有相关性,IL-18基因编码区第105位点C等位基因可作为肾石病患者草酸钙结石危险因素的标志。     

血管紧张素原基因C521T多态性与脑梗死的关系

目的 本课题旨在研究血管紧张素原(AQT)基因C521T单核苷酸多态性与脑梗死的关系,从分子水平探讨脑梗死发病的机制及特点. 方法 采用病例-对照研究,结合聚合酶链式反应-限制性片段长度多态性(PCR-RFLP)技术,检测82例脑梗死患者和89例对照者的AGT基因521位点基因型和等位基因,比较和分析病例组与对照组间该基因型及等位基因的分布频率差异. 结果 脑梗死组与对照组比较,AGT 521TT基因型频率22.0%显著高于对照组6.7%,差异有显著性(P<0.05),脑梗死组中AGT 521T等位基因频率为28.0%,与对照组比较,显著高于对照组11.8%,差异有显著性(P<0.05).有无高血压CI之间比较各基因型频率和各等位基因频率无显著性差异,P>0.05. 结论 AGT 521TT基因型和T等位基因可能为脑梗死的易患因素.在本组人群中AGT C521T碱基突变不依赖是否致高血压而与脑梗死的发病相关.     

广州地区汉族人群VDR基因FokⅠ多态性与原发性肾结石的关系

目的研究维生素D受体(VDR)基因起动子FokⅠ多态性与广州地区汉族人群泌尿系统原发性肾结石的关系。方法应用PCR-RFLP对169例结石患者(结石组)及156例非泌尿系统结石患者(对照组)的外周血进行FokⅠ多态性检测,分析两组间基因型和等位基因的频率分布。结果结石组基因型分布:FF 25%(43/169),Ff 33%(56/169),ff 42%(70/169);对照组FF 32%(50/156),Ff 38%(59/156),ff 30%(47/156),其中ff基因型分布在两组中差异有统计学意义(P<0.05)。结石组与对照组等位基因F分布频率分别为42%(142/338)和51%(159/312),f分别为58%(196/338)和49%(153/312),差异有统计学意义(P<0.05)。结论 VDR基因FokⅠ多态性与广州地区汉族人群泌尿系统原发性肾结石发生有一定关系。     

过氧化小体增殖物激活受体γ C161T基因多态性和动脉粥样硬化性脑梗死的关系

目的 探讨过氧化小体增殖物激活受体γ(PPARγ)C161T基因多态性与动脉粥样硬化性脑梗死(ACI)的关系.方法 筛选168例ACI患者及165名健康人群为研究对象.采用聚合酶链式限制性片段长度多态性方法检测PPARγ基因C161T位点多态性.结果 PPAγC161T基因型CC、CT和TT在脑梗死患者组的分布频率分别为76.2%、21.4%和和2.4%,C等位基因频率为86.9%,T等位基因频率为13.1%;CC、CT和TT基因型在正常对照组中的分布频率分别为60.6%、36.4%和3.0%,C等位基因频率为78.8%,T等住基因频率为21.2%,除TT基因型外(例数少未统计分析),两组间其他各基因型频率及等位基因频率差异有显著性,正常时照组T等位基因携带者基因型(CT+TT)频率(39.4%)明显高于脑梗死组(23.8%),CC型明显低于脑梗死组.结论 PPARγC161T基因多态性与脑梗死的发病有关,T等住基因携带者可能发生脑梗死的风险低.     

尿激酶3'-UTR基因多态性与特发性草酸钙结石易感性的关系

目的 探讨尿激酶3’-UTR基因多态性与特发性草酸钙结石易感性的相关性.方法 采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)的方法,检测138例特发性草酸钙结石患者和142例健康对照组人群尿激酶3’-UTR基因+4506位点C/T基因多态性的表达.结果 特发性草酸钙结石组与健康对照组比较,TT与CC+TC基因型频率、T/C等位基因频率进行卡方检验,差异均有统计学意义(P＜0.05).T等位基因携带者是特发性草酸钙结石的危险因素.与等位基因C相比,T基因携带者的患病风险是其1.493倍.结论 尿激酶3’-UTR+4506 C/T基因多态性与特发性草酸钙结石存在相关性.     

卵泡刺激素受体及酪氨酸羟化酶基因多态性与子痫前期的关系

目的 探讨卵泡刺激素受体基因(FSHR)rs1394205多态性和酪氨酸羟化酶基因(TH)rs2070762多态性与子痫前期(PE)发病的关系.方法 采用TaqMan探针法,对105例PE患者和103例正常妊娠妇女的FSHR rs1394205多态性和TH rs2070762多态性位点进行基因型分析.结果 PE组FSHR rs1394205的基因型频率CC、CT、TT分别为23.8%、50.5%、25.7%,等位基因频率C、T分别为49.0%,51.0%.对照组基因型频率CC、CT、TT分别为23.3%、52.4%、24.3%,等位基因频率C、T分别为49.5%,50.5%,两组比较差异无统计学意义(P＞0.05);PE组TH基因rs2070762基因型频率CC、CT、TT分别为18.1%、56.2%、25.7%,等位基因频率C、T分别为46.2%,53.8%.对照组基因型频率CC、CT、TT分别为14.6%、42.7%、42.7%,等位基因频率C、T分别为35.9%、64.1%,两组比较PE组TT基因型频率和等位基因T频率明显低于对照组(P＜0.05).rs1394205和rs2070762均与PE疾病严重程度差异不明显.结论 TH基因rs2070762多态性(基因型,TT和等位基因T)可能是PE的保护性因素,FSHR基因rs1394205多态性与PE发病无关,2个SNP位点与PE的发病程度均无关.     

CYP17基因多态性与子宫内膜异位症的相关性

目的探讨CYP17基因多态性与子宫内膜异位症的相关性。方法选择2014年1月至2015年12月深圳市人民医院收治的子宫内膜异位症患者30例(子宫内膜异位症组),同时选取体检健康者30例作为对照组,采集2组受试者外周静脉血标本并提取DNA,设计引物,通过聚合酶链式反应扩增包括基因多态位点的片段,用Msp A1Ⅰ限制性内切酶进行酶切,酶切产物在琼脂糖凝胶上电泳,确定CYP17基因的基因型,分析CYP17基因多态性与子宫内膜异位症的相关性。结果子宫内膜异位症组患者的CYP17基因型TT、TC、CC频率分别为36.7%、46.7%、16.7%,对照组CYP17基因型TT、TC、CC频率分别为20.0%、43.3%、36.7%,子宫内膜异位症组患者CYP17基因的TT基因型频率显著高于对照组(P<0.05),CC基因型频率显著低于对照组(P<0.05);2组TC基因型频率比较差异无统计学意义(P>0.05)。子宫内膜异位症组患者CYP17等位基因T、C频率分别为60.0%(36/60)、40.0%(24/60),对照组受试者CYP17等位基因T、C频率分别为41.7%(25/60)、58.3%(35/60),2组受试者CYP17等位基因频率比较差异有统计学意义(P<0.05)。CYP17基因的TC基因型与子宫内膜异位症的患病风险无关联(P>0.05);CYP17基因携带TT基因型个体罹患子宫内膜异位症的风险增加(P<0.05)。结论 CYP17基因多态性可能与子宫内膜异位症有相关性,可能为该疾病的遗传易感基因,CYP17基因携带TT基因型个体罹患子宫内膜异位症的风险增加。     

STAT3基因多态性与AAV的关系

目的 探讨STAT3 rs2293152和rs744166基因多态性与中国广西汉族人群中原发性抗中性粒细胞胞浆抗体(ANCA) 相关性小血管炎(AAV)的关系.方法 采用PCR-RFLP方法鉴定中国汉族98例AAV患者(病例组)基因型,以213例年龄、性别相匹配的中国汉族健康人群(对照组)为对照,分析各基因型和基因频率的差异与AAV的关系,同时采用病例-对照研究方法对其血清等相关指标进行检测,分析各基因型与临床症状、实验室检验指标及病理指标的关联.结果 (1)病例组STAT3 rs2293152基因多态性3种基因型分布频率:GG(31.6%)、GC(45.9%)、CC(22.4%),等位基因分布频率:G(54.5%)、C(45.4%);对照组基因型分布频率:GG(37.6%)、GC(51.6%)、CC(10.8%),等位基因分布频率:G(63.4%)、C(36.6%),CC基因型(P=0.024)及C等位基因(P=0.046)出现频率病例组均高于对照组,差异均有统计学意义(P<0.05).病例组3种基因型间关节痛发生率的差异有统计学意义(P<0.05),其中CC基因型关节痛发生率高于GG、GC基因型;实验室检验指标CRP水平的差异有统计学意义(P<0.05),其中CC基因型CRP水平高于GG、GC基因型.(2)STAT3 rs744166基因多态性3种基因型分布频率:TT(20.4%)、TC(59.2%)、CC(20.4%),等位基因分布频率:T(50.0%)、C(50.0%);对照组基因型分布频率:TT(23.9%)、TC(56.3%)、CC(19.7%),等位基因分布频率:T(52.1%)、C(47.9%),基因型及等位基因分布频率在病例组与对照组间的差异均无统计学意义(P>0.05).病例组3种基因型间咯血、血尿发生率的差异均有统计学意义(P<0.05),其中TT基因型咯血发生率高于TC、CC基因型,TC基因型血尿发生率高于TT、CC基因型.TC基因型肾脏病理学评分AI、CI均高于TT、CC基因型,差异有统计学意义(P<0.05).结论 (1)中国广西汉族人群中STAT3 rs2293152基因多态性可能与AAV的遗传易感性相关;CC基因型和C等位基因频率分布可能与AAV患者关节痛发生率及CRP水平相关.(2)AAV患者中STAT3 rs744166基因多态性可能与临床上咯血、血尿发生率及病理学评分AI、CI相关,但可能与AAV的遗传易感性关系不大.     

炎症性肠病CD14基因启动子159多态性及其意义

目的 了解上海地区汉族炎症性肠病(IBD)患者CD14基因启动子159多态性和等位基因频率的分布情况,探讨其多态性与IBD的关系.方法 采用PCR-RFLP法,对IBD组(n=84)[溃疡性结肠炎(UC)组(n=43)、克罗恩病(CD)组(n=41)]和健康对照组(n=135)CD14基因启动子159位点进行基因分型,计算等位基因频率分布,测定PCR产物核苷酸序列.结果 IBD组CD14-159 CC、CT、TT基因型分别为14.29%、50.00%、35.71%,对照组分别为14.07%、53.33%、32.59%,两组的基因型和等位基因频率间均无统计学差异(P＞0.05);CD、UC组的基因型和等位基因频率与对照组比较也无统计学差异(P＞0.05).对照组男性的T等位基因频率显著高于女性(64.67% vs 52.50%,P=0.043).结论 CD14基因启动子C-159T多态性与上海地区汉族IBD无明显相关性;CD14基因多态性可能存在性别差异.     

Association of Vitamin D Receptor Gene Polymorphisms with Calcium Oxalate Calculus Disease

Urinary calculus is a common disease that isclosely related to the disorder of calcium metabolismand has the tendency of polygenic inheritance.Butup to now its predisposing genes have yetto be iden-tified.Vitamin D receptor(VDR) can regulate themetabolism of calcium and phosphorus in the body.Its allele polymorphisms are widely used to detectge-netic characteristics of some diseases such as osteo-porosis,rickets and secondary hyperparathy-roidism[1— 6 ] .In recent years,some researchers be-…     

Increased expression of heparan sulfate proteoglycan on the cultured renal epithelial cells during oxalate exposure

We have previously reported that heparan sulfate (HS) / heparan sulfate proteoglycan (HSPG, syndecan-1) expression significantly increased in the rat kidney during calcium oxalate (CaOx) nephrolithiasis. Although the exact mechanism of the increased syndecan expression still remains unclear, HS/syndecan is thought to have some important roles in CaOx crystal formation. The present study examined the role of HS during oxalate exposure by using a newly developed cell line (KIC-synd-1) that expresses human heparan sulfate proteoglycan (syndecan-1). Quantitative competitive (QC)-RT-PCR was used to examine change of syndecan-1 mRNA expression in KIC-synd-1 cells. Production of syndecan-1 core protein and glycosaminoglycans (GAGs) were also confirmed by Western blot, immunohistochemistry and HPLC, respectively. Wild type Mardin-Darby canine kidney (MDCK) cells were also examined in the same manner. The stable expression of syndecan-1 gene and production of both core protein and HS chains were confirmed in the newly developed KIC-synd-1 cell line. Increased syndecan-1 mRNA expression and production of core proteins were confirmed in KIC-synd-1 cells during oxalate exposure. MTT assay revealed that the cell viability decreased significantly in the MDCK cells after 1 mM oxalate exposure (p<0.05). On the other hand, there was no significant difference in the oxalate exposed KIC-synd-1 cells. However, the cell viability in KIC-synd-1 cells pretreated with heparitinase digestion decreased significantly before oxalate exposure (p<0.05). The present data suggests that both exogenous and endogenous HS exerts protective effect against oxalate-induced cell injuries. Previous studies in our laboratory have indicated that hyperoxaluria and deposition of CaOx crystals resulted in renal tubular cellular injury inducing the synthesis of HSPG to protect and repair the damaged epithelial cell surface. The present data offers strong support for this hypothesis. Finally, HS could be potent inhibitor of CaOx nephrolithiasis and the absence of this substance on the tubular surface may increase the risk of CaOx crystal formation and retention.     

Role of heparan sulfate proteoglycan (syndecan-1) on the renal epithelial cells during calcium oxalate monohydrate crystal attachment

We have reported that heparan sulfate (HS)/heparan sulfate proteoglycan (HSPG, syndecan-1) expression significantly increased in the rat kidney during calcium oxalate (CaOx) nephrolithiasis. Although the exact role of syndecan still remains unclear, HS/syndecan-1 is thought to have some important role in the CaOx crystal formation. Mardin-Darby canine kidney (MDCK) cells are most commonly used in kidney stone research. It was reported that MDCK cells do not express syndecan-1. In the present study, we established a novel MDCK cell line (KIC-synd-1) that expressed the human syndecan-1 gene. In this cell line, we confirmed stable expression of both sndecan-1 gene and core protein. Immunohistochemical study revealed positive staining of syndecan-1 monoclonal antibody in the basolateral and cytosolic area of the KIC-synd-1 cells. We also investigated the composition of glycosaminoglycans (GAGs) side chains in MDCK cells and KIC-synd-1 cells by using high-performance liquid chromatography (HPLC). Four types of HS chains were identified in both cells as follows; delta diHS-NS, delta diHS-6S, delta diHS-diS1, delta diHS-diS2. Increased production of delta diHS-NS and delta diHS-diS2 were shown in KIC-synd-1 cells compared with production in MDCK cells (p < 0.05). In contrast, only a small amount of delta diHS-6S and delta diHS-diS1 was contained in both cell lines. Total amount of HS was significantly increased in the KIC-synd-1 cells compare with that in the wild type MDCK cells (p < 0.05). Scanning electron microscopy revealed no significant difference between cell surface of wild type MDCK cells and that of KIC-synd-1 cells in normal conditions. However, calcium oxalate crystal attachment was apparently decreased in the KIC-synd-1 cells. These results suggested that cell surface HS/syndecan-1 has preventive role for calcium oxalate nephrolithiasis via creation of a charge barrier against COM crystal attachment.     

泌尿系结石患者尿液中草酸钙结晶的研究

目的与方法利用扫描电子显微镜(SEM)研究结石患者稀释尿液中,Ca^2 和C2O4^2-浓度、结晶时间和枸橼酸钠对草酸钙结晶的影响。结果Ca^2 和C2O4^2-浓度较高时,热力学不稳定的三水草酸钙(COT)晶体成核及生长的速度比一水草酸钙(COM)晶体快,而随着Ca^2 和C2O4^2-浓度的降低,COM晶体的成核和生长占优势,当浓度降低到0．6mmol／L时,只出现COM这一种晶型。结晶时间有利于COM晶体的生长,COT在结石形成中起着先驱的作用。结论构橼酸钠对草酸钙结晶有抑制作用。     

加味乌茹汤治疗尿石症的实验研究

目的 探讨加味乌茹汤（茜草根、乌贼骨、北芪、肉桂、金钱草、海金砂等组成）对乙二醇和活性维生索D，诱导SD大鼠草酸钙尿路结石形成的相关物质代谢的影响。方法在70只SD雄性大鼠中，对60只进行草酸钙尿路结石模型的建立。然后分组给予加味乌茹汤、排石颗粒、生理盐水。测定了大鼠24h尿量、尿PH、Cr、尿中钙、草酸、磷、镁排泄量及其在血中钙、草酸、磷、镁的浓度，并在解剖显微镜下观察肾、输尿管、膀胱结石形成情况。结果与模型组相比，加味乌茹汤组尿钙、尿草酸排泄量明显减少（P〈0.05），血钙浓度降低，镁、磷离子增加。结论加味乌茹汤具有抑制内源性高草酸尿和吸收性高钙尿症的作用，从而降低肾钙含量，减少肾小管内草酸钙结晶形成，达到预防及治疗尿石症的目的。     

草酸钙尿石症患者尿液和结石中凝血酶原片段检测及其意义

为比较正常人和尿石症患者尿液中凝血酶原片段1（UPTF1）在含量及其与草酸钙晶体的结合能力，以探讨UPTF1含量或功能异常与草酸结石形成的关系，用ELISA法检测正常人和尿石症患者24h尿液、用过饱和结晶法制备的晶体表面结合物质和结石基质中UPTF1的含量。结果发现尿石症患者尿液中能与草酸钙结合的UPTF1的浓度及其在24h尿中含量显著低于正常人组；UPTF1普遍存在于含钙结石中。结果表明：尿石症患者尿液中抑制结石形成的UPTF1明显减少可能是结石形成的重要原因。     

夏枯草提取物抑制大鼠肾草酸钙结石形成作用的研究

目的 研究夏枯草提取物对大鼠肾草酸钙结石的作用及机制. 方法 将40只雄性Wistar大鼠随机分为4组:对照组、模型组、夏枯草提取物低剂量(50 g/L)和高剂量(100 g/L)实验组.实验4周后处死动物,将各组大鼠肾脏标本制成组织切片,H-E染色,观察大鼠肾组织病理学改变;检测大鼠血清尿素氮(BUN)、血清肌酐(Cr)、磷(P)和Ca2+的含量,检测24 h尿液中Ca2+和草酸(Ox)的含量;运用荧光定量PCR和Western-blot检测大鼠肾内TRPV5 mRNA和蛋白的表达,并进行统计学分析. 结果 与对照组比较,模型组大鼠肾呈现草酸钙结石病理改变,不同浓度的夏枯草提取物作用后,可明显改善其病理变化.模型组血清BUN,Cr,Ca2+和P含量明显升高,经不同浓度的夏枯草提取物作用后,实验组BUN及Cr含量明显低于模型组(P＜0.05),但实验组和模型组Ca2+及P含量比较无显著性差异;模型组尿液Ca2+,Ox含量较对照组明显升高,经不同浓度的夏枯草提取物作用后,可降低实验组Ca2+含量,且成药物剂量依赖性(P＜0.05),但对Ox的含量无显著性作用;模型组肾内TRPV5mRNA和蛋白的表达明显降低,经不同浓度的夏枯草水提取物作用后,实验组TRPV5 mRNA和蛋白的表达逆转,且具有统计学意义(P＜0.05). 结论 夏枯草对大鼠肾草酸钙结石具有防治作用;可能是通过上调大鼠肾脏尿钙调控信号TRPV5的表达,降低血清中BUN、Cr含量及尿液中Ca2+的含量.     

海南地区557例泌尿系结石成分分析

目的：了解海南地区泌尿系结石患者的结石化学成分、百分比及性别、年龄与地区分布特点。方法收集海口市人民医院2010年10月至2015年11月经结石治疗的住院患者结石标本557例,应用红外光谱法进行结石成分测定,并结合临床资料进行统计分析。结果557例患者中男性多于女性,男女比例为1.95：1;40~60岁为泌尿系结石高发年龄段,占58.7%;398例混合型结石(71.45%)高于159例单一成分结石(28.55%);单一成分结石和混合型结石成分中草酸钙检出率最高;草酸钙与碳酸磷灰石混合型结石最多,占61.94%,草酸钙结石第二,占19.21%,无水尿酸结石占12.2%,碳酸磷灰石占1.97%,仅发现2例胱氨酸结石。含六水磷酸铵镁成分的泌尿结石患者组年龄[(41.0±9.3)岁]与草酸钙组[(51.0±12.3)岁]、无水尿酸组[(57.9±9.8)岁]、草酸钙和尿酸混合结石组[(54.3±11.0)岁]比较,差异具有显著统计学意义(P<0.01),与草酸钙和碳酸磷灰石混合结石组[(49.1±11.9)岁]比较,差异具有统计学意义(P<0.05)。结论海南地区患者泌尿系结石成分发病以混合型为主,胱氨酸结石较为少见;含六水磷酸铵镁结石成分的患者发病年龄较小,而无水尿酸结石患者发病年龄最大。     

A Comparative Study on Several Models of Experimental Renal Calcium Oxalate Stones Formation in Rats

In order to compare the effects of several experimental renal calcium oxalate stones formation models in rats and to find a simple and convenient model with significant effect of calcium oxalate crystals deposition in the kidney, several rat models of renal calcium oxalate stones formation were induced by some crystal-inducing drugs (CID) including ethylene glycol (EG), ammonium chloride (AC), vitamin D3 [1α(OH)VitD3, alfacalcidol], calcium gluconate, ammonium oxalate, gen-tamicin sulfate, L-hydroxyproline. The rats were fed with drugs given singly or unitedly. At the end of experiment, 24-h urines were collected and the serum creatinine (Cr), blood urea nitrogen (BUN), the extents of calcium oxalate crystal deposition in the renal tissue, urinary calcium and oxalate ex-cretion were measured. The serum Cr levels in the stone-forming groups were significantly higher than those in the control group except for the group EG L-hydroxyproline, group calcium gluconate and group oxalate. Blood BUN concentration was significantly higher in rats fed with CID than that in control group except for group EG L-hydroxyproline and group ammonium oxalate plus calcium gluconate. In the group of rats administered with EG plus Vitamin D3, the deposition of calcium ox-alate crystal in the renal tissue and urinary calcium excretion were significantly greater than other model groups. The effect of the model induced by EG plus AC was similar to that in the group in-duced by EG plus Vitamin D3. EG plus Vitamin D3 or EG plus AC could stably and significantly in-duced the rat model of renal calcium oxalate stones formation.