E-选择素基因多态性与新疆维吾尔族、汉族原发性高血压相关性研究

【目的】探讨E一选择素基因rs5361A／C、rs5355C／T两个等位基因多态性与新疆维吾尔族、汉族原发性高血压之间的相关性。【方法】选择新疆维吾尔族、汉族原发性高血压患者309例和368例,同时选取维吾尔族、汉族正常对照组300例和349例,采用TaqMan探针法对E选择素基因的2个等位基因多态性rs5361A／C、rs5355c／T进行检测。【结果】新疆维吾尔族、汉族原发性高血压组与正常对照组中rs5361A／C基因多态性均存在显著差异（P〈0．01）,而新疆维吾尔族、汉族原发性高血压组与正常对照组中rs5355C／T基因多态性均无显著差异（P〉0．05）。【结论]E一选择素基因rs5355C／T等位基因多态性与新疆维吾尔族、汉族原发性高血压均无显著相关性,E一选择素基因rs5361C／T等位基因多态性与新疆维吾尔族、汉族原发性高血压均显著相关,E一选择素基因rs5361等位基因CC型可能是新疆维吾尔族和汉族原发性高血压病的独立致病因素。     

E-选择素基因rs3917422A和rs5355C位点多态性与哈尼族原发性高血压相关性研究

目的探讨E-选择素基因rs3917422A＼C和rs5355C＼T位点多态性与哈尼族原发性高血压的关系。方法采用PCR测序技术,对云南哈尼族172例原发性高血压患者和133例正常对照的B选择素基因rs3917422A、C和rs5355C＼T的错义突变进行检测。结果在哈尼族中未发现有rs3917422A多态存在,发现rs5355C基因有多态存在。rs5355C等位基因频率在原发性高血压组中为10．5％,正常对照组中为13．2％,两组之间无显著性差异（P=0．311,P〉0．05）。结论哈尼族中E-选择素基因无rs3917422A多态基因存在,而多态性基因rs5355C基因频率分布是原发性高血压组低与正常对照组,其多态性与哈尼族原发性高血压成负相关,两组之间无显著性差异。     

骨保护素基因rs2073617T/C、rs2073618G/C多态性在东南沿海地区汉族人群中分布及与急性冠状动脉综合征相关性研究

目的 探讨骨保护素(OPG)基因启动子rs2073617T/C和第一外显子rs2073618G/C位点基因多态性在福建地区汉族人群中的分布及与急性冠状动脉综合征(ACS)的相关性.方法 纳入720例福建地区无血缘关系的汉族人为研究对象,分成ACS 360例(ACS组)和对照组360例(对照组),采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)技术,对OPG基因rs2073617T/C和rs2073618G/C多态性位点进行基因型分型,同时采用DNA测序对酶切产物进行鉴定.结果 (1)在福建地区汉族人群中,OPG基因rs2073617T/C多态性位点存在TC、TT、CC三种基因型;rs2073618G/C多态性位点也存在GG、GC、CC三种基因型.(2)对ACS组与正常对照组OPG基因rs2073617T/C、rs2073618G/C基因型及等位基因频率分布进行比较均无统计学差异(P均>0.05).(3)ACS组患者单支病变、双支病变及三支以上病变组之间比较OPG基因rs2073617T/C、rs2073618G/C各基因型差异无统计学意义(P均>0.05).结论 福建地区汉族人群OPG rs2073617T/C、rs2073618G/C位点基因多态性与ACS发生无明确相关性.     

牡丹江地区汉族及朝鲜族高血压人群中G蛋白β3亚单位825C/T的多态性

背景:G蛋白β3亚单位825C/T基因多态性与朝鲜族人群原发性高血压是否存在关系尚无报道.目的:研究牡丹江地区朝鲜族、汉族高血压患者C825T基因的多态性.方法:纳入2008-09/2010-08在牡丹江市朝鲜民族医院内科就诊的原发性高血压患者224例作为病例组,同时选取同时期的门诊体检的健康者196例作为对照.用PCR-RFLP检测G蛋白β3亚单位基因C825T多态性,观察TT,CT,CC基因型频率及等位基因频率.结果与结论:PCR-RFLP检测结果显示牡丹江地区朝鲜族高血压患者与朝鲜族健康人TT,CT,CC基因型频率差异无显著性意义(P > 0.05);T,C等位基因频率差异有显著性意义(P < 0.05).而牡丹江地区汉族人群中TT,CT,CC基因型分布在高血压人群和正常人群差异有显著性意义(P < 0.05),而T,C等位基因频率差异无显著性意义(P > 0.05).朝鲜族高血压组等位基因C的比例较高,而汉族高血压组等位基因T的比例较高,存在民族异质性.提示G蛋白β3亚单位基因C825T多态性与牡丹江地区朝鲜族高血压无关联,但其是牡丹江地区汉族高血压的危险因素.     

吉林地区汉族人群脂联素基因多态性与冠心病的相关性

目的探讨吉林地区汉族人群脂联素基因（apM1）多态性与与冠心病的关系。方法运用单核苷酸多态性分析技术在251例无亲缘关系的吉林地区汉族人群（正常对照人群131例，冠心病120例）中检测apM1基因2号外显子及3号外显子的多态性。结果吉林地区汉族人群中SNP45（T／G）和SNP331（T／C）多态性的基因型频率和等位基因频率在冠心病组和正常对照组间的分布存在显著性差异（P〈0．05）。结论吉林地区汉族人群脂联素基因第2外显子的SNP45和第3外显子的SNP331多态性位点与冠心病均有相关性.     

脂联素及其基因多态性与广西瑶族冠心病的关系

目的 探讨广西地区瑶族冠心病患者血清中脂联素(APN)水平及其基因位点+276 G/T和-11377 C/G的多态性。方法 瑶族、汉族冠心病患者、瑶族和汉族正常人各100例纳入研究。采用酶联免疫吸附法(ELISA)检测研究对象血清中APN水平,聚合酶链反应-限制性片段长度多态性(PCR-RFLP)技术检测APN基因位点+276G/T和-11377C/G的多态性。结果 ①两组冠心病组血清中APN水平明显低于两组正常组,差异有统计学意义(t=10.311,8.642; 均P=0.000)。瑶族冠心病组和汉族冠心病组血清中APN的差异无统计学意义(t=1.792,P=0.076); ②在H-W平衡检验中,四组中APN基因位点+276G/T和-11377C/G均具有群体代表性(均P＞0.05); ③四组APN+276G/T位点的主要型别是野生型。4组间APN+276G/T位点的等位基因频率均无显著差异(均P＞0.05); ④冠心病组ANP-11377C/G基因型和等位基因频率与同民族正常组的差异有统计学意义(χ²=8.908,P=0.012; χ²=17.275,P=0.000); 瑶族冠心病组APN-11377C/G基因杂合程度略低于汉族冠心病组,但差异无统计学意义(χ²=0.363,P=0.834)。结论 同汉族冠心病一样, 血清低APN水平和APN-11377C/G位点是瑶族冠心病患者的危险因素。     

探讨MTHFR基因多态性与新疆地区人群唇腭裂发病的关系

目的 探讨亚甲基四氢叶酸还原酶（MTHFR）基因C677T和A1298C多态性与新疆地区部分人群非综合征性唇腭裂（NSCL/P）发病的关系.方法 采用病例对照设计,试验组为新疆地区NSCL/P患儿44例（维吾尔族12例,汉族32例）;对照组为非唇腭裂患儿62例（维吾尔族26例,汉族36例）.应用聚合酶链式反应-限制性片段长度多态性方法（PCR-RFLP）对MTHFR基因C677T和A1298C进行多态性检测.结果 新疆地区汉族NSCL/P的MTHFR C677T和A1298C位点基因型及等位基因频数与对照组差异无统计学意义（x2=0.07,P ＞0.05;X2 =0.30,P＞0.05）;维吾尔族NSCL/P的MTHFR C677T位点基因型及等位基因频数与对照组差异无统计学意义（X2=0.12,P ＞0.05）,而MTHFR A1298C位点基因型及等位基因频数与对照组比较其差异有统计学意义（X2=8.90,P ＜0.01）.结论 新疆地区汉族MTHFR基因C677T和A1298C位点多态性可能与NSCL/P的发生无关;维吾尔族MTHFR基因C677T位点多态性与NSCL/P的发生可能无关,而A1298C位点多态性与NSCL/P的发生相关,可能是NSCL/P发病的易感因素.     

雌激素受体β基因多态性与汉族高龄女性高脂血症的相关性研究

目的:探讨雌激素受体β(ERβ)基因多态性与中国汉族绝经后女性高脂血症之间的相关性。方法:检测59例高脂血症绝经后妇女(高脂血组)及59例无高脂血症的同龄女性(对照组)的ERβrs944050的单核苷酸多态性,分析其与高脂血症的关联性。结果:ERβ的SNPrs944050的等位基因A、G频率在高脂血组和对照组分别为0.500、0.500、0.669、0.331。基因型频率分布符合Hardy-Weinberg平衡。SNP rs944050,A/A、G/G与G/A+G/G之间差异有统计学意义(P=0.02)。SNPrs944050的等位基因G升高高脂血症发生的风险(OR=2.03,95%可信区间为1.20~3.43)。结论:在中国汉族绝经后妇女中,ERβ基因SNPrs944050的单核苷酸多态性与高脂血症相关。     

GABABR2 基因多态性与维吾尔族人高血压的关系

目的探讨G蛋白家族GABABR2 基因rs3750344 和rs1435252 位点的多态性是否是维吾尔族人高血压的遗传易感因素。方法采集新疆维吾尔族人标本785 例,测量代谢性表型及血压等暴露指标。用Taqman 基因分型平台进行rs3750344 与rs1435252 基因分型,用Haploview 软件进行连锁不平衡分析和单倍型分析。结果rs1435252 基因型高血压组(GG 43.0%、GA 43.6%、AA 13.5%)与正常对照组(GG 44.8%、GA 47.6%、AA 7.6%)有显著性差异(P<0.05);A等位基因携带者发生高血压的风险增高(OR=1.38, 95%CI: 1.08~1.76),调整性别、年龄后显著性仍然存在(P<0.05)。rs3750344 基因型高血压组(TT 71.4%、TC 25.2%、CC 3.5%)与正常对照组(TT 68.5%、TC 29.6%、CC 1.9%)无显著性差异(P=0.204)。结论GABABR2 基因rs1435252 多态性A等位基因可能是维吾尔族人群发生高血压的易感因子。     

基质金属蛋白酶-9基因rs17577多态性与新疆维吾尔族心肌梗死相关性研究

目的:探讨新疆维吾尔族人群基质金属蛋白酶-9(matrix metalloproteinase-9,MMP-9)基因rs17577多态性与心肌梗死的相关性.方法:经皮冠状动脉造影确诊维吾尔族心肌梗死患者338例(MI组)和同期冠状动脉造影阴性患者309例为对照组,采用聚合酶链反应一限制性片段长度多态性方法行MMP-9基因rs17577多态性分析.结果:MMP-9基因rs17577多态性位点在MI组和对照组基因型频率分别为:A/A型13.31%和5.18%,G/A型37.87%和39.8%,G/G型48.82%和55.02%.A/A基因型频率(13.31%,5.18%)及A型等位基因频率(32.25%,25.08%)分布差异有统计学意义(x2=11.58,P=0.001;x2=8.08,P=0.004).用Logistic回归分析校正了年龄、性别、吸烟、高血压、高脂血症等传统风险因素干扰后,MMP-9基因A/A基因型仍是心肌梗死发生的独立风险因素.结论:A/A基因型和A型等位基因可能增加新疆维吾尔族人群发生心肌梗死的风险.     

Measurement of L-carnitine and acylcarnitines in body fluids and tissues in children and in adults

We have developed a reliable and validated radio-enzymatic method for the assay of L-carnitine and acylcarnitines, using a modification of existing methods. The sensitivity of the assay is 10 mumol/l using 10 microliters of plasma or urine. It is also suitable for measurements of carnitine in a 10 mg sample of liver or muscle obtained by percutaneous biopsy. The use of N-ethylmaleimide in the reaction mixture together with an excess of [1-14C]acetyl CoA ensures that the reaction proceeds to completion and a linear response is obtained. Using this method control ranges have been established for plasma and urine carnitine concentrations in healthy children and adults, and for the carnitine content of liver and muscle in adults. No significant difference was found between fasting and post-prandial plasma carnitine levels. An age-related increase was found in urinary total carnitine and acylcarnitine concentration throughout childhood. These data provide a reliable basis for studies of patients with abnormal carnitine and acylcarnitine metabolism, distribution and excretion.     

Rosamicin in Urethral and Vaginal Secretions and Tissues in Dogs and Rats

In animal studies we investigated the distribution of rosamicin in plasma and urethral and vaginal tissues in rats as well as in urethral and vaginal secretions in dogs. We found concentration ratios between urethral secretion and plasma of 1.9 and between vaginal secretion and plasma of 2.4. The rosamicin concentrations in urethral and vaginal tissue significantly exceeded the levels of all other tissues investigated. Because rosamicin could be valuable for the treatment of bacterial urethritis and the colonization of the vaginal introitus with fecal bacteria in women, it should be investigated clinically in this respect.     

Similarities and differences in clients treated and in medications prescribed by APRNs and psychiatrists in a CMHC

This study is part of a larger study comparing prescribing practices of psychiatrists and advanced practice psychiatric nurses (APRNs) using the following three groups of patients: patients treated by psychiatrists, those treated by APRNs, and those treated by both APRNs and psychiatrists at different times in 1 year. Demographics for 5507 patients were examined. A subsample of APRNs and psychiatrists prescribed similar total numbers of medications. Psychiatrists prescribed more types of antidepressant medications other than the SSRI antidepressants, and they prescribed more than twice the number of benzodiazepines. APRNs prescribed more SSRIs and spent more time with clients during medication visits.     

Postural strategies and falls in elderly and in parkinsonism]

OBJECTIVE: To use a posture analysis to show the evolution of postural pattern connected with falls.MATERIAL AND METHOD: It is a prospective study on two groups of 16 persons of more than 60 years. A group concerns 16 small disability off drug parkinsonian patients, a group concerns 16 healthy witnesses. All the persons benefited from a posture recording by means of a force platform and were followed during 1 year. RESULTS: Data analysis underlines three groups of persons corresponding to three postural patterns, independently of the presence of Parkinson disease. A group (n = 18) did not contain fallers, the second (n = 10 ) contained 20% of fallers, the third (n = 4) contained 100% of fallers. Differences between the groups were identified on 16 posturographic parameters. DISCUSSION: A group has a good functional value and one does not record any fall. Its characteristics, which correspond to a category of persons who compensate well for the phenomena of ageing, are found in the literature. A group has an intermediate functional value and regrets 20% of fallers. Kinetic profile reveals a tendency to the stiffness of the posture. This group is going to operate rather ankle strategies. A group has an inferior functional value and regrets 100% of fallers. Kinetic profile seems disrupted and not to be able to adapt itself in a satisfactory way to the situation otherwise than by stereotypical reactions. This group is going to operate systematically much less stabilizing hip strategies. CONCLUSION: A close determinism between physiological neuromotor ageing and Parkinson disease does exist. We showed with a prospective follow-up, the arisen of fall and showed the evolution of postural patterns related to fall. It appears as well that evolution mainly follows three stages leading from a small risk of fall gait pattern to a major risk of fall gait pattern.     

Racial differences in oxidative stress and inflammation: in vitro and in vivo

African American race is an independent risk factor for enhanced oxidative stress and inflammation. We sought to examine whether oxidative-stress and inflammatory markers that are typically measured in humans also differ by race in cell culture. We compared levels between African American and Caucasian young adults and then separately in human umbilical vein endothelial cells (HUVECs) from both races. We found heightened oxidative stress and inflammation in the African Americans both in vitro and in vivo. African American HUVECs showed higher nitric oxide (NO) levels (10.8 ± 0.4 vs. 8.8 ± 0.7 μmol/L/mg, p = 0.03), Interleukin-6 (IL-6) levels (61.7 ± 4.2 vs. 23.9 ± 9.0 pg/mg, p = 0.02), and lower superoxide dismutase activity (15.6 ± 3.3 vs. 25.4 ± 2.8 U/mg, p = 0.04), and also higher protein expression (p < 0.05) of NADPH oxidase subunit p47phox, isoforms NOX2 and NOX4, endothelial nitric oxide synthase (NOS), inducible NOS, as well as IL-6. African American adults had higher plasma protein carbonyls (1.1 ± 0.1 vs. 0.8 ± 0.1 nmol/mg, p = 0.01) and antioxidant capacity (2.3 ± 0.2 vs. 1.1 ± 0.3 mM, p = 0.01). These preliminary translational data demonstrate a racial difference in HUVECs much like that in humans, but should be interpreted with caution given its preliminary nature. It is known that racial differences exist in how humans respond to development and progression of disease, therefore these data suggest that ethnicity of cell model may be important to consider with in vitro clinical research.