特发性脊柱侧凸患者二肽基肽酶9基因多态性研究

目的:探讨二肽基肽酶9(dipeptidyl-peptidase 9,DPP9)基因多态性与青少年特发性脊柱侧凸(adolescent idiopathic scoliosis,AIS)发生发展的关系.方法:选择571例AIS患者及236例正常对照,AIS患者的Cobb角均大于20°.结合汉族人单倍体型资料,选取rs10406145、rs11670570、rs2286367、rs2277733及rs732631 5个单核苷酸多态性(single nucleotide polymorphisms,SNPs)位点,采用聚合酶链反应-限制性片段长度多态性(polymerase chain reaction-restriction fragment length polymorphism,PCR-RFLP)的方法对这5个SNPs位点进行基因分型.结果:AIS患者组DPP9基因5个SNPs位点的基因型及等位基因分布与正常对照比较没有明显差异.在已经达到骨骼成熟或者已经接受手术治疗的患者中,这5个SNPs位点不同基因型所对应的最大Cobb角没有明显差异.结论:DPP9基因多态性与AIS的发生发展没有明显关系.     

青少年特发性脊柱侧凸生长激素基因多态性研究

目的 研究生长激素(GH)基因多态性与青少年特发性脊柱侧凸(AIS)发生发展的关系.方法 本研究包括265例AIS患者及193名正常对照.在AIS患者组,记录其最大Cobb角.采用PCR-RFLP的方法 对GH基因启动子区域多态性位点rs2854184进行基因分型.结果 在AIS患者组,GH基因rs2854184多态性位点的3个基因型AA、AT、TT分别占38.3%,50.3%,11.4%,正常对照组分别占39.6%,50.2%,10.10k,2组比较差异无统计学意义.同样,在MS患者组rs2854184多态性位点的2个等位基因A、T分别占63.5%,36.5%,正常对照组分别占64.7%,35.3%,2组比较差异无统计学意义.另外在AIS组内,多态性位点rs2854184不同基因型所对应最大Cobb角分别是从33.8°±10.0°,AT 36.4°±15.0°,TT34.5°±9.1°,3者比较差异无统计学意义.结论 GH基因rs2854184位点多态性与AIS的发生发展没有明显关系.     

青少年特发性脊柱侧凸女性患者瘦素基因启动子区-2548G/A基因多态性研究

目的:探讨瘦素基因启动子区-2548G/A(rs7799039)基因多态性与女性青少年特发性脊柱侧凸(adolescent idiopathic scoliosis,AIS)发生发展、异常生长模式及侧凸类型之间的相关性。方法:收集451例AIS女性患者及335例正常同龄女性青少年的静脉血标本,采用PCR-RFLP方法对两组的瘦素基因启动子区-2548G/A(rs7799039)多态性位点进行基因分型,比较两组间基因分型的差异,分析AIS组中基因分型与患者Cobb角和人体测量学指标的关系。结果:AIS组rs7799039位点基因型和等位基因频率与正常对照组之间无明显差异;在AIS组内,rs7799039位点不同基因型所对应的初诊Cobb角、校正身高、BMI、月经初潮年龄及Risser征均没有显著性差异;rs7799039位点等位基因多态性分布情况在不同侧凸类型AIS患者和对照组之间无统计学差异。结论:瘦素基因启动子区-2548G/A(rs7799039)基因多态性与女性AIS的发生发展、异常生长模式及不同侧凸类型之间都没有明显的相关性。     

耐酒石酸酸性磷酸酶5基因多态性与青少年特发性脊柱侧凸患者相关性研究

目的 探讨耐酒石酸酸性磷酸酶5 (ACP5)基因多态性与青少年特发性脊柱侧凸(AIS)易感性和严重程度的相关性.方法 选择2006年1月至2008年12月372例AIS患者(AIS组)和2005年3月至2006年8月239名健康青少年(正常对照组),所有AIS患者Cobb角均≥10°.结合汉族人单倍体型资料,选取rs2229531、rs2071484两个单核苷酸多态性位点,采用PCR-限制性片段长度多态性的方法对这两个位点进行基因分型.比较不同基因型在AIS组与正常对照组之间的分布差异,并分析基因多态性与Cobb角的相关性.结果 AIS组与正常对照组的rs2229531位点均未见多态性.AIS组ACP5基因rs2071484位点的基因型及等位基因分布与正常对照组比较差异无统计学意义(x2=3.336和1.438,P＞0.05).rs2071484多态性位点AA、AG、GG基因型所对应的平均最大Cobb角分别为38°±19°、34°±14°、38°±21°,三者相比差异无统计学意义(P =0.157).结论 ACP5基因多态性可能与AIS的发生发展没有明显关系.     

汉族人群白介素17受体C基因单核苷酸多态性与青少年特发性脊柱侧凸的相关性

【摘要】　目的：探讨白介素17受体C（IL-17RC）基因单核苷酸多态性与中国汉族人群青少年特发性脊柱侧凸（adolescent idiopathic scoliosis,AIS）易感性之间的相关性。方法：收集529例AIS女性患者及512例正常同龄女性青少年的静脉血标本,采用聚合酶链反应－限制性片段长度多态性（PCR-RFLP）方法鉴定和统计两组人群IL-17RC基因rs708567和rs279545多态性位点的基因型及等位基因分布频率;比较两组间不同多态性位点各基因型及等位基因分布频率的差异。结果：研究Power值（81%）大于80%,AIS患者组及正常对照组各多态性位点的基因型分布均符合Hardy-Weinberg遗传平衡定律。AIS组rs708567多态性位点GG基因型和G等位基因的分布频率显著高于对照组GG基因型（90.17% vs. 85.55%,P=0.023）和G等位基因（95.1% vs. 92.8%,P=0.028）的分布频率;携带GG基因型青少年中AIS的发病率约为携带AG基因型青少年的1.5倍（OR值=1.55;95% CI:1.45~3.11）。rs279545多态性位点各基因型及等位基因的分布频率在两组间均无统计学差异。结论：中国汉族人群中IL-17RC基因单核苷酸多态性与AIS的发生相关。     

RANK基因多态性与女性青少年特发性脊柱侧凸的相关性

目的 :探讨核因子κB受体活化子(receptor activator of nuclear factor-κB,RANK)基因多态性与女性青少年特发性脊柱侧凸(adolescent idiopathic scoliosis,AIS)之间的相关性。方法:2009年2月~2013年7月在我院行支具或手术治疗的450例主弯Cobb角大于20°的女性AIS患儿为观察组(AIS组),年龄14.8±2.9岁(10~18岁)。对照组为例行健康体检的我院周围地区无血缘关系的健康青少年女性400名,年龄15.1±2.3岁(10~17岁)。所有AIS患儿均有身高、体重及体重指数(body mass index,BMI)等资料。AIS组和对照组每例取肘静脉血2ml,提取外周血白细胞基因组DNA。rs1805034和rs35211496作为RANK的目标位点,应用Taqman探针技术行荧光定量PCR,全部反应结束后在荧光定量PCR仪上读取终点荧光,确定各样本的基因分型结果。采用R×C表χ~2检验比较AIS组和对照组单核苷酸多态性(single nucleotide polymorphism,SNP)位点基因型及等位基因频率分布的差异。采用单因素方差分析比较AIS组患儿主弯Cobb角及BMI在不同基因型之间的差异。结果:rs1805034和rs35211496的基因型在AIS组和对照组中的分布均符合Hardy-Weinberg遗传平衡定律。rs1805034和rs35211496的基因型及等位基因频率两组间无统计学差异(P0.05)。单因素方差分析示AIS组内rs1805034和rs35211496的不同基因型患儿间的主弯Cobb角及BMI均无统计学差异(P0.05)。结论:RANK基因可能不是女性AIS的易感基因,女性AIS组内rs1805034和rs35211496的不同基因型患儿间的主弯Cobb角及BMI均无统计学差异。     

青少年特发性脊柱侧凸患者胰岛素样生长因子-1受体基因多态性研究

目的 探讨胰岛素样生长因子-1受体(IGF-1R)基因多态性与青少年特发性脊柱侧凸(AIS)易感性之间的关联性.方法 实验对象为200例MS患者(AIS组)和200名年龄、性别匹配的健康青少年(对照组),记录AIS组的身高、体蓖、月经初潮年龄(女性)、侧弯类型、最大Cobb角和Risser征等临床指标.采用聚合酶链式反应-限制性片段长度多态性(PCR-RFLP)的方法对所有研究对象进行IGF-1R基因分型,比较不同基因型在AIS组和对照组之间的分布差异,并分析基因多态性与临床指标的相关性.结果 AIS组与对照组的IGF-1R基因等位基因及基因型分布无统计学差异(P＞0.05).女性AIS患者不同基因型所对应的最大Cobb角、Risser征及月经初潮年龄之间差异也无统计学意义(P＞0.05).结论 IGF-1R基因多态性与AIS的发生发展均无相关性.     

先天性巨结肠的SEMA3A基因单核苷酸多态性分析

目的探讨SEMA3A基因单核苷酸多态性（SNP）与先天性巨结肠发生的关系。方法应用PCR扩增后直接测序的方法．分析119例先天性巨结肠患者和93例正常人群中SEMA3Ars7804122、rs7978212个SNP位点基因型。结果SEMA3A基因rs797821位点的等位基因频率和基因型频率在先天性巨结肠组和正常对照组的分布差异无统计学意义（P〉0．05）。rs7804122位点的G等位基因（26．9％）和GG（5．0％）,AG（43．7％）基因型在先天性巨结肠组中的频率明显高于正常对照组（12．9％、1．1％、23．7％,P〈0．05）。结论SEMA3A基因是先天性巨结肠重要的易感基因．其rs7804122位点G等位基因是先天性巨结肠发病的危险因素。     

易感基因CELSR2与汉族青少年特发性脊柱侧凸的相关性研究

目的 :在中国汉族人群中验证易感基因CELSR2与青少年特发性脊柱侧凸(adolescent idiopathic scoliosis,AIS)发病的相关性。方法:利用等位基因特异性多重连接酶检测反应在1794例AIS患者和1040例正常对照人群中对既往报道的CELSR2基因的易感位点rs141489111、rs6698843和rs2281894进行基因分型。同时在本中心全基因组数据库中分析CELSR2基因其他单核苷酸多态性位点(SNP)的基因分型信息。术中收集45例AIS患者(AIS组)和10例年龄匹配的脊柱外伤患者(对照组)的椎旁肌,比较两组椎旁肌中基因表达水平的差异。利用卡方检验分析组间SNP位点最小等位基因频率差异,采用T检验对组间的基因表达水平进行统计分析。结果:1794例AIS患者和1040例正常对照人群中,rs141489111位点未检测到突变,所有研究对象基因型均为GG。SNP位点rs6698843和rs2281894的基因型及等位基因频率在AIS和正常对照人群间未见显著性差异(P0.05)。GWAS数据库显示其他7个位于CELSR2基因上的SNP位点与AIS亦无显著相关性(P0.05)。CELSR2基因在AIS组和对照组椎旁肌的表达水平无显著性差异(P0.05)。结论:既往报道的易感基因CELSR2上的突变位点和多态性位点均未在中国汉族人群中得到验证,AIS患者椎旁肌组织中CELSR2表达未见明显异常。CELSR2可能与汉族AIS的发生无关。     

HTR1A和HTR1B基因与青少年特发性脊柱侧凸的关联研究

目的 研究HTR1A和HTR1B基因多态性与青少年特发性脊柱侧凸(MS)的发生及其表型(性别、Cobb角和PUMC分型)间的关系.方法 对2006年1月至2007年3月诊治的103例MS患者和同期就诊或健康体检的性别和年龄匹配的108例对照者,以单核苷酸多态性(SNPs)位点(rs6294和rs6296)为遗传标记进行分型筛查,对结果分别进行基于等位基因和基因型的单位点关联分析、基因型与表型关联分析.结果 rs6294位点(THR1A基因)的等位基因A在病例组中的频率要明显高于对照组,差异有统计学意义(P=0.041).该位点在病例组中的基因型分布与PUMC分型相关(P=0.008),它的基因型A/A+A/G与PUMCⅢ型患者的发病相关.结论 HTR1A基因可能是PUMCⅢ型脊柱侧弯的一个易感基因,PUMC分型可能有一定的遗传学基础.     

Association of calmodulin1 gene polymorphisms with susceptibility to adolescent idiopathic scoliosis

Objective: To investigate whether: (i) rs12885713 (?16C > T) and rs5871 polymorphisms in the Calmodulin1 (CALM1) gene are predisposing factors for adolescent idiopathic scoliosis (AIS); and (ii) different single nucleotide polymorphisms (SNP) correlate with different subtypes of AIS. Methods: A total of 100 AIS patients with Cobb angle above 30° were recruited for this study together with 100 healthy controls. Curve pattern, Cobb angle, and Risser sign were recorded. Two polymorphic loci, rs12885713 (?16C > T) and rs5871 loci, of the CALM1 gene were analyzed. All patients were grouped according to the Peking Union Medical College (PUMC) classification, the apical location of the major curve, and the Cobb angle. Results: There was a statistically significant difference in the distribution of rs12885713 site polymorphism (P = 0.034) between PUMC type II (double curve) patients and controls, in the distribution of rs12885713 site polymorphism (P = 0.009) between lumbar curve cases and controls and in the distribution of rs5871 site polymorphism (P = 0.035) between thoracic curve patients and controls. Conclusion: Different subtypes of AIS might be related to different SNP. The susceptibility of PUMC type II (double curve) AIS and lumbar curve might be related to CALM1 rs12885713 site polymorphism, while rs5871 site polymorphism might be a risk indicator for thoracic curve cases.     

钙调蛋白1基因多态性和青少年特发性脊柱侧凸不同亚型的关系

目的 探讨钙调蛋白1基因rs12885713(-16C>T)、rs5871等位基因多态性和特发性脊柱侧凸及其不同临床亚型的关联性.方法 2005年10月至2007年4月,北京协和医院接受手术治疗的青少年特发性脊柱侧凸患者100例(Cobb角>30.),对照组100例.QIAamp DNA微型血液试剂盒外周静脉血提取DNA.设计钙调蛋白1基因~12885713、rs587l所在序列引物,完成PCR扩增反应;ABl3730测序仪分析SNP位点基因型.结果 所有患者按照PUMC分型、主弯顶点位置以及Cobb角分组.结果 显示:(1)rs12885713位点等位基因多态性分布情况在PUMC Ⅱ型患者和对照组之间差异有统计学意义(P=O.034);(2)rsl2885713等位基因多态件分布情况在腰弯患者和对照组之间差异有统计学意义(P=-0.009);(3)rs5871位点等位基因多念性分布情况在胸弯患者和对照组之间差异有统计学意义(P=0.035).结论 钙调蛋白1基冈不同SNP位点等位基因多态性可能和特发性脊柱侧凸小同临床亚型相关联:(1)rsl2885713位点等位基因多态性可能和PUMCⅡ型特发性脊柱侧凸相关联;(2)腰弯侧凸可能和rsl2885713化点等位基凶多念性关联;(3)胸弯侧凸可能和rs5871位点等位基凶多态性关联.     

Matrilin-1基因多态性对青少年特发性脊柱侧凸进展的预测价值

目的 探讨Matrilin-1基因多态性在预测青少年特发性脊柱侧凸(adolescent idiopathicscoliosis,AIS)是含进展为严重脊柱侧凸方面的价值.方法 2006年6月至2007年3月在我院就诊的AIS患者267例,男40例,女227例.104例手术治疗,163例定期门诊随访,记录患者末次随访或术前最大Cobb角、初潮年龄、侧凸弯型、身高、臂长及体重.选取Matrilin-1基因启动子区域位点rs1149048进行聚合酶链式反应-限制性片段长度多态性(polymerase chain reaction-restriction fragment length poly-morphism,PCR-RFLP)基因分型.进展型侧凸(脊柱侧凸进展成为严重脊柱侧凸)定义为骨骼发育未成熟时Cobb角>40°或骨骼发育成熟时Cobb角>50°.AIS患者被分为进展型与非进展型两组,比较两组间的临床特征及基因型分布的差异.分析侧凸进展的危险因素.结果 267例AIS患者中162例(60.7%)为非进展型,105例(39.3%)为进展型.进展型组月经初潮年龄较晚(>13岁),且三弯及胸腰双主弯所占比例高,基因型GG的个体在进展型组比例高(55.2%).初潮年龄晚、三弯、胸腰双主弯及基因型CG为侧凸进展的危险因素.结论 Matrilin-1基因多态性可被用来预测AIS进展,结合其他相关预测因素可提高预测的准确性.     

金属蛋白酶组织抑制剂-2基因多态性与青少年特发性胸椎侧凸的相关研究

目的 探讨金属蛋白酶组织抑制剂-2(TIMP-2)启动子区基因多态性与青少年特发性胸椎侧凸疾病易感性和严重程度的相关性.方法 研究对象为2007年1月至2009年3月诊治的354例女性胸弯型青少年特发性脊柱侧凸(AIS)患者(AIS组)和2005年3月至2006年6月210名健康体检女性青少年(对照组).选取TIMP-2基因启动子区418G.C(rs8179090)单核苷酸多态性位点,采用聚合酶链反应一限制性片段长度多态性(PCR-RFLP)的方法对这该位点进行基因分型.比较不同基因型在AIS组与对照组之间的分布差异,并分析基因多态性与临床表型的相关性.结果 rs8179090多态性位点的等位基因及基因型分布在两组中差异无统计学意义(P>0.05).AIS组中,体质量指数(BMI)<17 kg.m~2或主弯cobb角≥40°的患者中c等位基因的比例分别显著高于BMI≥17 kg.m~2或主弯cobb角<40°者(P<0.05).已经达到骨骼成熟且自然史未受干扰的患者中,GC型和CC型患者的主弯Cobb角平均值显著大于GG型患者(卢<0.05).结论 TIMP-2基因启动子区-418G.C(rs8179090)多态性位点与女性胸弯型AIS患者青春期异常生长模式和侧凸进展有关,TIMP-2基因是胸弯型AIS的疾病修饰基因.     

Association between adolescent idiopathic scoliosis with double curve and polymorphisms of calmodulin1 gene/estrogen receptor‐α gene

Objective: To investigate whether single nucleotide polymorphisms (SNP) of the calmodulin1 (CALM1) and estrogen receptor‐α genes correlate with double curve in adolescent idiopathic scoliosis (AIS). Methods: A total of 67 Chinese patients with AIS with double curve and 100 healthy controls were recruited. Curve pattern and Cobb angle of each patient were recorded. The Cobb angle is at least 30°. There were 60 patients with Cobb angle ≥ 40°. According to the apical location of the major curve, there were 40 thoracic curve patients. Four polymorphic loci, including rs12885713 (−16C > T) and rs5871 in the CALM1 gene and rs2234693 (Pvu II) and rs9340799 (Xba I) in the estrogen receptor 1 (ER1) gene were analyzed by the ABI3730 genetic analyzer. Results: The current study indicates that: (i) there are statistical differences between patients with double curve, with Cobb angle ≥ 40° and with thoracic curve and healthy controls in the polymorphic distribution of the rs2234693 site of the ER1 gene, (P= 0.014, 0.0128, 0.0184 respectively); (ii) there is a difference between patients with double curve and controls in the polymorphic distribution of the rs12885713 site in the CALM1 gene (P= 0.034); and (iii) there is a difference between thoracic curve patients and controls in the polymorphic distribution of the rs5871 site in the CALM1 gene (P= 0.0102). Conclusions: Different subtypes of AIS might be related to different SNP. A combination of CALM1 and ER1 gene polymorphisms might be related to double curve in patients with AIS. Further study is necessary to confirm these hypotheses.     

Lack of association between suppressor of cytokine signaling-3 gene polymorphism and susceptibility and curve severity of adolescent idiopathic scoliosis

Purpose

To explore whether the suppressor of cytokine signaling-3 (SOCS3) gene polymorphisms are associated with the susceptibility and abnormal growth pattern of adolescent idiopathic scoliosis (AIS).

Methods

Three hundred and ninety eight AIS girls aged 10–18 years old were enrolled, and 367 age-matched healthy girls were recruited as controls. Only patients who had Cobb angles larger than 20º were included in this study. Anthropometric parameters including body weight, height, and body mass index (BMI) were measured for AIS girls. Rs4969198 was selected as tagSNP to cover all of the related polymorphisms on SOCS3. Genotyping was performed using PCR-based Invader assay with the probe sets designed and synthesized by third wave. The genotyping results were read with an ABI PRISM7900HT sequence detection system (Applied Biosystems, Foster City, CA). A subgroup of 322 skeletally mature AIS patients who did not received bracing or any other conservative treatment previously were analyzed to define the contribution of rs4969168 on curve severity, body height, body weight, and BMI.

Results

Rs4969198 was successfully genotyped. No significant difference of genotype frequencies from the Hardy–Weinberg equilibrium (HWE) test was noted for the AIS patients or the normal controls. Neither the genotype nor the allele frequencies of rs49691968 were significantly different between the AIS patients and the normal controls. Rs4969168 was not found to be associated with age, curve severity of scoliosis, and body height. AIS patients with AA genotype had significantly higher body weight and BMI than the patients with AG and GG genotype (P = 0.014).

Conclusions

The SOCS3 gene polymorphisms are not associated with the occurrence of AIS, but the gene polymorphism (rs4969168) is associated with abnormal growth pattern of AIS, indicating that SOCS3 gene might be a disease-modifying gene of AIS.