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1.
探讨汉族人群血管紧张素原(AGT)基因CD235Met-Thr变异与高血压合并脑梗塞发生的关系.采用突变基因分离聚合酶链反应(MS-PCR)方法检测82例高血压合并脑梗塞患者(BI)、67例单纯高血压患者(EH)和95例健康对照者(C)的M235T等位基因型.BI组AGT基因T/T基因型频率和T等位基因频率(分别为0.720和0.811)显著高于C组(分别为0.516和0.700,P＜0.05)和EH组(分别为0.537和0.716,P＜0.05).结果提示,AGT基因CD235Met-Thr变异增加了汉族人群高血压合并脑梗塞发病的易感性.  相似文献   

2.
目的研究SP110基因rs1135791单核苷酸多态性在世居藏族人群中的分布及其肺结核易感相关性。方法采用病例对照研究方法,以343名藏族肺结核患者为病例组,对照组为与病例组年龄、性别成组匹配的260例藏族健康人群,采用iMLDR分型技术检测SP110基因rs1135791多态性。结果SP110基因rs1135791位点T/T、T/C、C/C基因型频率在病例组分别为61.5%、33.2%、5.3%;对照组分别为63.5%、32.7%、3.8%,两组间基因型分布差异无统计学意义(x~2=0.73;p=0.69)。对rs1135791等位基因频率分析显示,T等位基因在病例组中和对照组中出现的概率分别为78.1%、79.8%,C等位基因在病例组和对照组中的出现的概率分别为21.9%、20.2%,两组间等位基因分布差异无统计学意义(x~2=0.50;p=0.48)。结论 SP110基因rs1135791多态性位点可能不是藏族肺结核人群的危险因素。  相似文献   

3.
目的研究在自然状况下,自然抗性相关巨噬细胞蛋白1基因(NRAMP1)D543N多态现象与世居藏族结核病易感性的关系。方法临床纳入世居藏族结核病患者135例,同时纳入健康者(藏族)143作为对照组,对NRAMP1基因D543N位点进行基因分型,利用聚合酶链反应‐限制性片断长度多态性(Polymerase Chain Reaction-Restriction Fragment Length Polymorphism,PCR-RFLP)方法根据基因型对样本进行分组,研究D543N多态现象与世居藏族结核病易感性的关系。结果结核病患者中,G/A基因型占19.3%(26/135)、G/G基因型占80%(108/135);而对照组中,G/A基因型占8.39%(12/143)、G/G基因型占90.91%(130/143),两个基因型存在组间差异,具有统计学意义(p0.05)。此等位基因在世居藏族结核病患者中明显多于对照组人士。结论 NRAMP1基因D543N多态性位点在世居藏族结核病患者以及健康者之间的基因型分布存在显著差异,说明该位点可能与世居藏族易感结核病有关。  相似文献   

4.
于滢  李云广 《黑龙江科技信息》2014,(8):45+170-45,170
目的:研究我国优秀冬季项目运动员肌型肌酸激酶基因(CKMM)A/G多态分布及其与优秀耐力能力的关联性。方法:应用MALDI-TOF技术测定120名我省汉族健康大学生及50名我国优秀冬季项目运动员CKMM基因A/G位点的基因型和等位基因的频率分布。结果:等位基因在对照组中的频率为A=87%,G=13%,基因型频率为A/A=76%,A/G=22%,G/G=2%;冬季项目运动员等位基因频率为A=86%,G=14%,基因型频率为A/A=72%,A/G=28%,其中名25耐力项目运动员等位基因频率为A=85%,G=15%,基因型频率为A/A=70%,A/G=30%,基因型频率和等位基因频率在对照组与耐力运动员组间差异也不显著。结论:我国耐力型冬季项目运动员的优秀耐力素质与CKMM基因N coⅠ多态性无关,该位点不能作为其耐力素质选材的遗传学标记。  相似文献   

5.
目的通过比较,了解西藏地区藏族女性叶酸代谢关键酶MTHFR(C677T,A1298C),MTRR(A66G)单核苷酸多态性分布特征。方法选取2016年7月至12月间在本院进行孕前及孕期检查的女性526名,分别采集口腔黏膜脱落细胞,利用提取的基因组DNA进行荧光定量PCR,确定受检者上述基因位点SNP特征,并进行基因型、等位基因频率在藏、汉民族间的差异比较。结果本地区藏族女性MTHFR C677T位点CC、CT、TT基因型频率分别是55.1%,36.1%,8.8%,与汉族女性间存在极显著性差异(P0.01),其中TT型基因型频率明显低于汉族女性;MTHFR A1298C位点AA、AC、CC基因型频率分别是52.4%,42.9%,4.7%,与汉族女性的基因多态性分布特征具有统计学差异(p0.05);MTRR A66G位点AA、AG、GG基因型频率分别是40.2%,49.0%,10.8%,其中GG型基因频率明显高于汉族女性(p0.05)。结论西藏地区藏族女性叶酸代谢关键酶基因位点多态性特征分布不同于汉族,具有一定的民族特异性。  相似文献   

6.
目的研究西藏地区藏族人群中肿瘤坏死因子α(TNFα)基因多态性与慢性乙肝(HBV)发病的相关性。方法通过实时定量荧光PCR及GeneAmp SDS软件检测113例藏族HBV患者和78例藏族非乙肝对照者TNFα-308、238位点的基因多态性,应用X~2检验及单因素分析与HBV发病的相关性。结果 TNFα-308、238位点各基因型频率在藏族HBV感染组和对照组中分布差异无显著性,TNFα-308、238基因多态性与藏族乙肝病毒感染无关结论在西藏地区藏族人群中,TNFα-308、238位点基因多态性与乙肝发病不相关。  相似文献   

7.
目的研究细胞因子诱导含SH2结构域蛋白(cytokine-inducible SH2-containing protein,CISH)基因的-292、+1320多态性位点与世居藏族人群结核病易感性的关联性。方法选取世居藏族结核病患者135例,并以143名健康体检者(藏族)作为对照,采用聚合酶链反应-限制性片断长度多态性(PCR-RFLP)方法并进行测序验证,对CISH基因-292和+1320多态性位点进行基因分型。采用SPSS 19.0统计学软件进行了数据处理,率的比较采用了χ2检验,用比值比(oddratios,OR)及其95%可信区间(Confidence interval,CI)表示相对危险度。结果对于CISH基因-292位点,A/A基因型在患者和健康人群中,比例分别占43.0%和46.1%;T/A基因型占48.1%和43.4%;T/T基因型占8.9%和10.5%;对于CISH基因+1320位点,患者和健康人群中A/A基因型占60.0%和56.4%;C/A基因型占37.8%和39.2%;C/C基因型占2.2%和4.9%;病例组和对照组中各基因型所占比例无统计学差异。结论 CISH基因-292、+1320位点的多态性与世居藏族人群的肺结核易感性可能无关。  相似文献   

8.
目的 探讨西藏地区乙型肝炎病毒及其亚型;方法 随机选择HBsAg阳性携带者34例,慢性乙型肝炎患者9例,应用FQ-PCR方法检测血清HBV-DNA含量;采用聚合酶链反应限制性酶长度多态性分析法,通过PCR扩增出目标基因片段,然后用特定的限制性内切酶进行酶切,根据酶切图谱进行基因型及亚型的测定.结果 43例HBV-DNA定量阳性血中c基因型占83.72%(36/43例);B型占6.9%(3/43);B、C混合型占4.65%(2/43);D型占4.65%(2/43).B基因型的亚型中Ba6.91%(5/43);B、C型混合型中C2亚型4.65%(2/43).结论 西藏地区HBV基因型以C型为主,B型次之,B型亚型以Ba占优势.  相似文献   

9.
目的探讨血浆内皮素(ET)和一氧化氮(NO)在伴与不伴高血压的慢性充血性心力衰竭(CHF)患者中的变化及其临床意义。方法选取152例CHF患者,根据是否合并有原发性高血压分为伴高血压CHF组(72例)和不伴高血压CHF组(80例),两组按治疗方法不同又随机分为卡维地洛治疗亚组和常规治疗亚组,同时设健康体检人员30例为对照组。分别测定治疗前后血浆ET水平和NO水平,并进行统计学分析。结果伴高血压CHF组患者的ET水平和不伴高血压CHF组血浆ET及NO水平均明显高于正常对照组(P<0.05),各亚组治疗后均下降(P<0.05),以卡维地洛亚组下降更明显(P<0.01);伴高血压CHF组NO水平均明显低于正常对照组(P<0.05),两亚组治疗后NO均上升(P<0.05),以卡维地洛亚组上升更明显(P<0.01)。结论 ET和NO与高血压病和CHF的发生发展关系密切,卡维地洛可改善了CHF患者的神经内分泌状态及血管内皮系统的功能紊乱。  相似文献   

10.
用聚丙烯酰胺凝胶电泳分析了柑桔属，金柑属106份种质资源的阳极(酸性)过氧化物酶同工 酶。认为该酶为单聚体，由一个基因位点控制，有A、B、C、D、F五个等位基因被发现。分析结果，认为中国、日本及印度的宽皮柑桔并无酶谱基因型差别。本文还对部分种类品种的过氧化物酶谱基因型及其分类学关系作了初步探讨。  相似文献   

11.
Angiotensin-1-converting enzyme (ACE) gene has established substantial attention in the recent years as a candidate gene for hypertension, cardiovascular diseases and type 2 diabetes. The aim of the present study was to investigate the association of ACE (I/D) polymorphism with coronary artery disease (CAD) in a north Indian population. A total of 662 subjects (330 CAD patients and 332 healthy controls) were examined for association of ACE gene (I/D) polymorphism and environmental risk factors. The mean age of the CAD patients and control subjects was 60.53 ± 8.6 years and 56.55 ± 7.7 years, respectively (p = 0.000). Anthropometric and demographic data showed BMI values significantly higher among CAD patients and control subjects (26.98 ± 4.9 vs 24.04 ± 4.7, p = 0.000). We observed pronounced central obesity in both CAD patients and controls, even at the lowest BMI values (<23 kg/m2). Dyslipidemia was highly prevalent in CAD patients compared to control subjects. Genotypic data showed significantly higher frequency of DD genotype in CAD patients than that of control subjects (40 vs 28.3 %). No significant difference was observed in the distribution of ID genotypes between CAD patients and control subjects. Logistic regression analysis of data demonstrate that DD genotype was associated with 1.8 fold increased risk of development of CAD in Asian Indians (OR 1.8; 95 % CI 1.22–2.66; p = 0.003). The frequency of D allele was significantly higher in CAD patients (p = 0.001). No significant difference was observed in the clinical and biochemical characteristics of CAD patients and controls when the data was stratified according to the genotypes of ACE gene. In conclusion, DD genotype of ACE gene may be associated with increased risk of CAD in Asian Indian population.  相似文献   

12.
Hypertension, a well known risk factor for various cardiovascular, peripheral vascular and renal events is an important public health challenge. Renin angiotensin system (RAS) being the most vital pathogenic mechanism of hypertension is mediated by a key component; the angiotensin converting enzyme (ACE). The present study was aimed to know the relationship of ACE gene polymorphism and the possible risk of development of hypertension in south Indian population. The study included 101 clinically diagnosed hypertensive patients without any associated disease condition and 81 age and sex matched apparently healthy controls. Genotyping was performed using a polymerase chain reaction, (PCR) amplification of the intron 16 fragment harboring the 287 bp Alu repeat sequence. Three possible genotypes D/D, I/I homozygous and I/D heterozygous were analyzed where the D/D genotypes corresponds to higher ACE levels (D-Deletion, I-Insertion). The PCR products were separated on 2 % agarose gel. Statistical analysis was performed using SPSS.15 software program. We found a significance in frequency of D/D genotype in the hypertensive patients compared to the control group (p = 0.0005, odd’s ratio = 4.157). This suggested that ACE (D/D) genotypes are more prone for the development of hypertension. This is relatively a pilot study; but nevertheless may assist in identifying the pathophysiological cause of hypertension.  相似文献   

13.
This work was undertaken to investigate correlation between oxidative stress and initiation of pathogenesis of pregnancy induced hypertension (PIH). Fifty primigravidae in age group of 20–35 years and gestational age 28–42 weeks with PIH were taken as cases. Twenty healthy primigravidae with no medical and surgical complications of pregnancy and with blood pressure ≤140/90 mm Hg served as controls. The cases were again subgrouped as severe preeclampsia (12 in number) and mild pre-eclampsia (38 in number). All of them were evaluated for serum malondialdehyde (MDA), Serum vitamin E and plasma vitamin C levels. The serum MDA levels were raised significantly in women with mild preeclampsia (P<0.01) and in women with severe preeclampsia (P<0.01) in comparison to normal primi gravida. The serum vitamin E levels were decreased in primi gravida with mild preeclampsia (p<0.1) and in primi with severe pre eclampsia (P<0.1) in comparison to normal primi gravida but the fall was not statistically significant. There was a significant fall (P<0.05) in the vitamin C levels in primi with mild preeclampsia than in the normal primi. The vitamin C levels in severe preeclamptic patients were lower than the normal primi but the fall was not statistically significant (P=0.10). The serum MDA and vitamin E showed a negative correlation in all the cases. The serum MDA and plasma vitamin C also showed a negative correlation in the control and study group. This observation suggests that in hypertensive disorders of pregnancy there is an imbalance between lipid peroxidation and antioxidant vitamin status because of oxidative stress. The decreased serum concentrations of the antioxidant vitamins supports the hypothesis that lipid peroxidation is an important causative factor in the pathogenesis of preeclampsia. The rise in antioxidants is probably to compensate the increased peroxide load in severe preeclampsia.  相似文献   

14.
Ascorbic acid levels in 30 subjects in their third trimester of pregnancy were estimated. Their haematological parameters (packed cell volume, haemoglobin and mean cell haemoglobin concentration) were also determined. The values were compared with that of 30 non-pregnant women (control group). The ascorbic acid status of newly born babies using cord blood were determined along with that of their mothers at delivery. The ascorbic acid level of 0.92±0.37 mg/dl was reported in third trimester. This value was not significantly (P>0.05) lower than in the control group (1.04±0.4 mg/dl). The result showed that the ascorbic acid level at delivery was significantly (P<0.05) higher than that of the control group. The ascorbic acid levels in the cord blood of the newly born babies were significantly (P<0.01) higher than the maternal level. There was insignificant difference in the haematological parameters between the pregnant and non-pregnant women.  相似文献   

15.
The present study was carried out to explore the altered lipid, lipoprotein and apoprotein abnormalities along with lipoprotein (a) in chronic kidney disease patients with stage I to V which were further divided into group 1 (stage I and II), group 2 (stage III and IV) and group 3 (stage V). 50 chronic kidney disease patients with stage I to V and 20 healthy normal subjects as controls were recruited for this study. Among the various parameters tested triglyceride levels were high in group 1 and 2, whereas VLDL cholesterol, Lp (a) and apo B levels were significantly high in all the groups when compared to controls (P<0.05). However, LDL cholesterol level was significantly low in group 3 only as compared to control group (P<0.05). Apoprotein AI values also showed significant decrease in all groups as compared to controls (P<0.05). Though total cholesterol levels in group 1 and LDL levels in group 1 and 2 were higher than controls, but the values attained not statistically significant (P>0.05). In conclusion high levels of VLDL cholesterol, Lp (a), apo B and low levels of apoprotein AI as reported in this study are the major lipid disorders in the development of cardiovascular complications at all the stages in these patients.  相似文献   

16.
The effect of caffeine intake on the risk of coronary heart disease was studied. Twenty-one rats used were randomly divided into three experimental groups, the first group served as the control while the second and third groups were administered caffeine orally at doses of 10mg/kg body weight and 20mg/kg body weight respectively for fourteen days. Caffeine, at 10mg/kg body weight, significantly increased (P<0.05) serum LDL- cholesterol concentration and coronary heart disease risk ratio while it significantly reduced (P<0.05) serum triacylglycerol concentration when compared with controls. At 20mg/kg body weight, caffeine significantly increased (P<0.05) coronary heart disease risk ratio while it significantly reduced (P<0.05) serum HDL-cholesterol concentration and serum triacylgycerol concentration when compared with controls. No dose response effect was observed possibly suggestive of a threshold effect. These results suggest that caffeine predisposes consumers of caffeine containing beverages to coronary heart disease.  相似文献   

17.
Hypertension is the most important public health problem in developing countries and one of the major risk factors for cardiovascular diseases, and it has been reported that hypertension is in part an inflammatory disorder and several workers have reported elevated levels of CRP in hypertensive individuals. The main aim of the present study was to evaluate the association between blood pressure and serum CRP levels across the range of blood pressure categories including prehypertension. A total of 104 patients and 63 control subjects were included in the present study. The level of CRP in the serum samples was estimated by a high sensitivity immunoturbidometric assay. Standard unpaired student’s ‘t’ test was used for comparison of hs-CRP levels between hypertensive patients and normotensive control subjects and between patient groups with different grades of hypertension and different durations of hypertensive histories. The mean serum hs-CRP level in hypertensive patients was 3.26 mg/L compared with 1.36 mg/L among normotensive control subjects (P<0.001). On comparison with normotensive control subjects, the hs-CRP levels vary significantly both with grades and duration of hypertension, with most significant difference found in patients with prehypertension (P<0.001), followed by Stage-I (P=0.01) and Stage-II(P=0.02) hypertensives. Significant difference in hs-CRP levels was also found in patients with shorter duration of hypertensive history (≤ 1year) when compared with those with ≥5 years of hypertensive history (P<0.01). Our study reveals a graded association between blood pressure and CRP elevation in people with hypertension. Individuals with prehypertension or with shorter duration of hypertension (≤1 Year) had significantly a greater likelihood of CRP elevation in comparison to chronic stage-I or stage-II hypertensives.  相似文献   

18.
The role of treadmill exercise on blood glucose homeostasis in noninsulin dependent diabetes mellitus (NIDDM) were studied using males between age of 45 and 60 years (X-52), who were clinically and biochemically-confirmed cases of NIDDM were taken into study group. Control group comprised of 10 males between age group of 45 to 60 (X-53) years. All the subjects were assessed by physician and were investigated to confirm diabetic status. The whole study period was extended for 6 weeks. The significant decrease in postprandial blood sugar (44.4 mg% for the study group and 32.2mg% for the control group) with a significant inter group difference (P<0.05) was observed. The mean decrease in fasting blood sugar (39.4mg% for the study group and 27.4mg% for the control group), with a marginal inter group difference (P<0.05) was observed. The treadmill exercise was found to be a definite tool in addition to drug and diet in glycemic control.  相似文献   

19.
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