Serological Evidence of Chronic Chlamydia pneumoniae Infection in Coronary Artery Disease

Background

Recent studies have suggested that Chlamydia pneumoniae infection could be involved in atherosclerosis and related clinical manifestations such as coronary artery disease, carotid artery stenosis and myocardial infarction.

Methods

Serum IgG, IgM and IgA antibodies to chlamydia genus specific antigen were measured by enzyme linked immunosorbent assay (ELISA) in 100 cases of angiographically demonstrated coronary artery disease (CAD) and 100 randomly selected healthy individuals as controls after matching for age and sex. All the samples positive for chlamydia genus specific IgG antibodies were then subjected to Chlamydia pneumoniae species specific IgG antibody ELISA.

Results

Seroprevalence of chlamydia genus specific IgG antibodies in control group was 59% with an increase in seropositivity with increasing age. The overall seroprevalence of IgG antibodies was 76% in CAD group and the prevalence was significantly high in all age groups as compared to controls. The odds ratio was 2.20 for seropositivity of chlamydia genus specific IgG antibodies in patients with myocardial infarction (MI) and/or angina than in control group. No significant association was observed for IgA and IgM anti-chlamydial antibodies. The odds ratio for prevalence of Chlamydia pneumoniae species specific IgG antibodies in CAD patients increased to 2.55 in comparison to age and sex matched controls.

Conclusion

Current study supports the reported association between C pneumoniae infection and CAD in Indian population.Key Words: Chlamydia pneumoniae, Coronary artery disease     

CT联合IgE和同型半胱氨酸检测诊断冠脉斑块稳定性的临床价值

目的 通过对拟诊为冠心病的患者行64排螺旋CT检查,血清免疫球蛋白E (IgE)和同型半胱氨酸(Hcy)水平检测,探讨其对冠脉斑块稳定性的预测价值。 方法 选择可疑及确诊的冠心病患者83例为研究对象,所有患者均行冠脉CT和冠状动脉造影检查,冠脉CT未见粥样硬化者纳入对照组,其余患者根据病史及冠脉造影结果分为急性冠脉综合症组(acute coronary syndrome,ACS),稳定型心绞痛组(stable angina pectoris,SAP),根据冠脉CT检查结果,再次分为易损斑块组、混合斑块组、稳定斑块组,记录研究对象的一般情况,所有患者均行血清IgE和Hcy检测。 结果 ①易损斑块在ACS组的分布高于SAP组(P＜0.05),稳定斑块在SAP组的分布高于ACS组(P＜0.05)。②ACS组和SAP组Hcy水平均高于对照组(P＜0.05),ACS组Hcy水平高于SAP组(P＜0.05),ACS组、SAP组和对照组间IgE水平差异无统计学意义(P＞0.05)。③易损斑块组、混合斑块组、稳定斑块组Hcy水平均高于对照组(P＜0.05),且易损斑块组Hcy水平＞混合斑块组＞稳定斑块组,差异均有统计学意义(P＜0.05),各斑块组IgE水平差异无统计学意义(P＞0.05)。 结论 ①冠脉CT可较准确地显示冠脉斑块的性质。②Hcy与冠状动脉斑块不稳定性关系密切,可反应冠脉斑块的不稳定性;IgE与冠状动脉斑块的稳定性无关。③Hcy结合冠脉CT对冠脉斑块的不稳定性有预测价值。      

血浆同型半胱氨酸水平与冠状动脉病变程度的相关性研究

目的探讨血浆同型半胱氨酸水平与冠状动脉病变程度的关系。方法对因胸痛而行冠状动脉造影检查的91例患者,根据冠状动脉造影结果,分为冠心病组(1支以上主要血管狭窄程度≥50%)和正常对照组。并对血管病变行Gensini积分。取空腹静脉血利用高效液相层析法测定血浆同型半胱氨酸的浓度。分别比较冠心病组与正常对照组,冠状动脉单支、双支、三支血管病变与正常对照组之间血浆同型半胱氨酸水平有无差异。结果冠心病组高同型半胱氨酸血症的检出率高于对照组(46.4%vs10%,X2=12.1,P<0.01)。不论是单支、双支、还是三支血管病变,其血浆同型半胱氨酸水平均高于正常对照组(P<0.01)。其中,三支血管病变组高于单支或双支病变组(P<0.05)。而单支、双支血管病变组之间差异无显著性(P>0.05)。血浆同型半胱氨酸水平随着Gensini积分的增加而升高。结论冠心病患者血浆同型半胱氨酸水平明显升高,高同型半胱氨酸血症的检出率高。随着冠状动脉病变支数增加,血浆同型半胱氨酸水平有逐步升高的趋势。血浆同型半胱氨酸水平与冠状动脉病变的严重程度一致。     

血浆同型半胱氨酸和C反应蛋白与冠状动脉病变程度相关性

【目的】探讨冠心病患者血浆同型半胱氨酸及C反应蛋白的水平与冠状动脉病变严重程度的关系。【方法】冠心病患者101例,分为稳定型心绞痛组(n=32),不稳定型心绞痛组(n=36)和急性心肌梗死组(n=33),于入院后检测血浆同型半胱氨酸(homocysteine,Hcy)及C反应蛋白(C-reactive protein,CRP)的水平,根据冠脉造影结果,分析Hcy及CRP的水平与冠脉病变之间的关系。【结果】同型半胱氨酸与C反应蛋白的水平随着病情的加重而逐渐升高,分别与稳定型心绞痛组相比,均有显著性差异,并且从单支病变、双支病变到三支病变,Hcy及CRP水平逐渐增高,但CRP差异更显著。【结论】血浆同型半胱氨酸与C反应蛋白水平与冠状动脉病变程度相关,对临床病情的评估具有重要价值。     

Mean platelet volume: a controversial marker of disease activity in Crohn’s disease

Background

We investigated and compared the capacity of mean platelet volume (MPV) and other inflammatory markers in detecting Crohn’s disease (CD) activity and differentiating CD patients from healthy controls.

Methods

MPV, C-reactive protein (CRP), erythrocyte sedimentation rate (ESR) and white blood cells were measured in 61 CD patients and 50 healthy subjects. Disease activity was assessed by the Crohn’s Disease Activity Index.

Results

A significant decrease in MPV was noted in patients with CD compared with healthy controls (P <0.0001), but statistical difference was not found between active and inactive CD groups. In CD, no significant correlation was found between MPV and other inflammatory markers. The overall accuracy of MPV (cutoff: 10.35 fl), CRP (cutoff: 4.85 mg/dl) and ESR (cutoff: 8.5 mm/hour) in differentiating CD patients from healthy controls was 76.6%, 65.8% and 72.1% respectively. The overall accuracy of CRP (cutoff: 4.95 mg/dl) and ESR (cutoff: 16.5 mm/hour) in determination of active CD was 80.3% and 73.8%.

Conclusions

MPV declined in CD patients compared with healthy subjects. MPV had the best accuracy in determination of CD patients and healthy controls. MPV did not show a discriminative value in disease activity.     

脂蛋白a和同型半胱氨酸联合检测在冠心病诊断中的价值

目的探讨脂蛋白a、同型半胱氨酸联合检测在冠心病诊断中的临床价值。方法选择冠心病患者和同期健康体检者各96例,分别在全自动生化分析仪上检测其血清中的脂蛋白a和同型半胱氨酸水平,并对检测结果进行对比分析。结果冠心病组患者脂蛋白a和同型半胱氨酸水平均较健康组发生了显著升高（P〈0.05）,冠心病患者的冠状动脉血管病变支数越多,差异越明显。结论脂蛋白a和同型半胱氨酸水平异常与冠心病的发生、发展密切相关,二者联合检测可为临床诊断工作提供可靠的参考依据。     

Homocysteine and risk of cardiovascular disease among postmenopausal women.

CONTEXT: Individuals with elevated levels of homocysteine tend to have higher prevalence of cardiovascular disease. However, prospective studies of homocysteine are inconsistent and data among women are limited. OBJECTIVE: To determine whether elevated homocysteine levels in healthy postmenopausal women predict risk of developing cardiovascular disease. DESIGN: Prospective, nested case-control study with a mean 3-year follow-up. SETTING: The Women's Health Study, an ongoing US primary prevention trial initiated in 1993. PARTICIPANTS: From a total cohort of 28,263 postmenopausal women with no history of cardiovascular disease or cancer at baseline, 122 women who subsequently experienced cardiovascular events were defined as cases, and 244 age- and smoking status-matched women who remained free of disease during follow-up were defined as controls. MAIN OUTCOME MEASURES: Incidence of death due to cardiovascular disease, nonfatal myocardial infarction (MI), stroke, percutaneous transluminal coronary angioplasty, or coronary artery bypass graft by baseline homocysteine level. RESULTS: Of the 122 cases, there were 85 events of MI or stroke and 37 coronary revascularizations. Case subjects had significantly higher baseline homocysteine levels than controls (14.1 vs 12.4 micromol/L; P = .02). Subjects with homocysteine levels in the highest quartile had a 2-fold increase in risk of any cardiovascular event (relative risk [RR], 2.0; 95% confidence interval [CI], 1.1-3.8). This effect was largely due to an excess of cases with high levels of homocysteine; the RR for those with homocysteine levels at or higher than the 95th percentile (20.7 micromol/L) was 2.6 (95% CI, 1.1-5.7). Risk estimates were independent of traditional risk factors and were greatest for the end points of MI and stroke (RR for those with baseline homocysteine levels in the top quartile, 2.2; 95% CI, 1.1-4.6). Self-reported multivitamin supplement use at study entry was associated with significantly reduced levels of homocysteine (P<.001). However, the association between increasing quartile of homocysteine level and risk of MI or stroke remained significant in analyses controlling for baseline multivitamin supplement use (P = .003 for trend), and subgroup analyses limited to women who were (P = .02 for trend) or were not (P = .04 for trend) taking multivitamin supplements. CONCLUSIONS: Among healthy postmenopausal US women, elevated levels of homocysteine moderately increased the risk of future cardiovascular disease. Whether lowering the homocysteine level reduces risk of cardiovascular events requires testing in randomized controlled trials.     

Leveraging informatics for genetic studies: use of the electronic medical record to enable a genome-wide association study of peripheral arterial disease

Background

There is significant interest in leveraging the electronic medical record (EMR) to conduct genome-wide association studies (GWAS).

Methods

A biorepository of DNA and plasma was created by recruiting patients referred for non-invasive lower extremity arterial evaluation or stress ECG. Peripheral arterial disease (PAD) was defined as a resting/post-exercise ankle-brachial index (ABI) less than or equal to 0.9, a history of lower extremity revascularization, or having poorly compressible leg arteries. Controls were patients without evidence of PAD. Demographic data and laboratory values were extracted from the EMR. Medication use and smoking status were established by natural language processing of clinical notes. Other risk factors and comorbidities were ascertained based on ICD-9-CM codes, medication use and laboratory data.

Results

Of 1802 patients with an abnormal ABI, 115 had non-atherosclerotic vascular disease such as vasculitis, Buerger''s disease, trauma and embolism (phenocopies) based on ICD-9-CM diagnosis codes and were excluded. The PAD cases (66±11 years, 64% men) were older than controls (61±8 years, 60% men) but had similar geographical distribution and ethnic composition. Among PAD cases, 1444 (85.6%) had an abnormal ABI, 233 (13.8%) had poorly compressible arteries and 10 (0.6%) had a history of lower extremity revascularization. In a random sample of 95 cases and 100 controls, risk factors and comorbidities ascertained from EMR-based algorithms had good concordance compared with manual record review; the precision ranged from 67% to 100% and recall from 84% to 100%.

Conclusion

This study demonstrates use of the EMR to ascertain phenocopies, phenotype heterogeneity and relevant covariates to enable a GWAS of PAD. Biorepositories linked to EMR may provide a relatively efficient means of conducting GWAS.     

C反应蛋白及外周血白细胞计数对冠脉病变的预测价值

目的:探讨C反应蛋白(CRP)、外周血白细胞计数(WBC)及中性粒细胞计数(PMN)对冠脉病变的预测价值。方法:检测60例急性冠脉综合征(ACS)、30例稳定性心绞痛(SA)及45例对照者CRP、WBC及PMN,按冠状动脉狭窄支数进行分组,研究冠脉狭窄范围与上述三指标的关系。结果:ACS组CRP、WBC及PMN与SA组及对照组比较,差异显著(P<0.01);急性心肌梗死(AMI)组三指标均显著高于不稳定心绞痛(UA)组、SA组及对照组(P<0.01),UA组CRP水平显著高于SA组及对照组(P<0.01);CRP在冠脉狭窄1支、2支、多支之间比较,差异有显著性(P<0.05)。结论:冠心病患者血浆CRP、外周血WBC与PMN对冠脉急性病变及狭窄支数有较好的预测价值。     

川崎病并发冠状动脉损害的危险因素及预后分析

目的 探讨川崎病（Kawasaki disease,KD）并发冠状动脉损害（CAL）的危害因素及预后。方法 对402例KD患儿的临床资料进行回顾性分析，对比未并发CAL的382例A组KD患儿和并发CAL的21例B组DK患儿的相关检验、治疗及随访结果。结果 两组患儿在性别及年龄比例上差异无显著性（P＞0.05），B组患儿平均热程、血小板（PLT）、C反应蛋白（CRP）及血沉（ESR）值明显高于A组（P＜0.05）。急性期约30％的KD患儿伴有心肌酶谱、肌钙蛋白Ⅰ、心电图或超声心动图的异常。A组患儿在≤10d内静脉滴注丙种球蛋白（IVIG）的占85.08%，B组仅占28.57%。超声心动图随访19例并发CAL的患儿，5例冠状动脉扩张（CAD）于短期恢复正常；11例冠状动脉瘤（CAA）有9例恢复或好转；3例巨大冠状动脉瘤（GCAA）回缩困难。结论 热程过长及未予静脉注射两种球蛋（IVIG）治疗是KD并发CAL最重要的危险因素，同时表现有PLT、ESR及CRP的显著升高。部分KD患者伴一过性心肌炎、心包炎或心内膜炎。KD并发CAA及CAD可好转或痊愈并发GCAA的预后不良。     

绝经后冠心病与雌激素水平内皮功能及血脂的关系

目的探讨绝经后冠心病（CHD）患者血浆中雌激素、内皮功能、脂蛋白与冠脉严重程度的相互关系,分析雌激素对内皮功能、血脂的影响。方法回顾性分析394例绝经后女性,按照冠脉造影结果分为CHD组和非CHD组。分析血糖、脂蛋白（a）、hs—CRP、ET-1及高血压病史、血糖、E2、NO、NOS和冠脉病变的影像学资料。结果病例组患者的血糖、脂蛋白（a）、hs—CRP、ET-1及高血压、糖尿病明显升高,E2、NO、NOS较对照组减低,差异有统计学意义（P〈0．05）。与单支病变组比较,双支、多支病变E：、NO、NOS、ET水平差异有统计学意义（P〈0．05）。结论绝经后女性CHD发生上升可能与雌激素水平下降有关。     

女性早发冠心病病人危险因素的研究

目的研究女性早发冠心病病人发病的危险因素和冠脉病变特点。方法选取2015年6月至2018年6月住院治疗并经冠脉造影确诊的女性早发冠心病病人66例（发病年龄≤65岁）作为早发组,选取年龄与病例组匹配的健康女性42名作为健康对照组,选取同时期确诊的女性晚发冠心病病人70例作为晚发对照组（发病年龄 > 65岁）。对各组间一般资料、疾病史、生化指标等进行对比。结果早发组冠心病病人的吸烟史（21.2%）和高血压病史（45.5%）比例均高于健康对照组（4.8%,9.5%）和晚发对照组（11.4%,35.7%）（P < 0.05~P < 0.01）;早发组病人尿素氮、总胆固醇、低密度脂蛋白、脂蛋白、三酰甘油、乳酸脱氢酶、肌酸激酶水平与健康对照组比较明显升高（P < 0.05~P < 0.01）。与晚发对照组比较,早发组肌酐水平较低（P < 0.01）,而尿素氮、脂蛋白、低密度脂蛋白、乳酸脱氢酶、肌酸激酶水平较高（P < 0.05~P < 0.01）。结论吸烟、高血压病史、尿素氮、脂蛋白、低密度脂蛋白、乳酸脱氢酶、肌酸激酶等生化指标异常升高可能是女性冠心病发病提前的危险因素,此外总胆固醇、三酰甘油水平异常升高还可能是中青年女性冠心病发生的危险因素。     

IgM Chlamydia Trachomatis Antibodies in Cases of Melasma

Background

Melasma is an acquired photosensitive hypermelanosis in sun-exposed areas, especially seen in females. The exact cause of this disorder is not known. Association of melasma with chronic pelvic inflammatory disease (PID) has been described earlier. Chlamydia trachomatis is an important etilogical agent in acute and chronic PID and photosensitivity has been described in almost 50% cases of chronic lymphogranuloma venereum caused by 1.1, 1.2 and 13 serovars of C. trachomatis.

Method

Blood of 38 cases of melasma in women and 31 healthy females was tested for the presence of C. trachomatis IgM antibodies by ELISA.

Results

The average age of the patients was 35.6(range 19-51) years and that of controls was 38(range 24-55). 7(18.42%) and 5 (13.16%) of the patients of melasma were positive and borderline positive for IgM antibodies respectively. None of the healthy controls were positive. The difference was statistically significant.

Conclusion

Melasma in women is most likely due to photosensitivity to C.trachomatis in cases of chronic pelvic inflammatory disease.Key Words: Melasma, Chlamydia trachomatis infection     

Spectrum of Haemoglobinopathies in a Tertiary Care Hospital of Armed Forces

Background

Thalassaemia and other structural haemoglobinopathies are the major genetic disorders prevalent in certain parts of the world including India. This study presents the pattern of haemoglobinopathies amongst the referred patients of anaemia in a two-year period.

Methods

A total of 1032 patients were studied during a two-year period for anaemia investigation. Haematological indices, sickling test and haemoglobin electrophoresis with quantification of the bands was done in all cases.

Result

Out of 1032 cases, 774 (75%) were normal and 258 (25%) cases had abnormal haemoglobin pattern. Of the 258 abnormal cases, 136 (53%) were males and 122 (47%) were females. Of all cases of anaemia 370 (36%) were microcytic hypochromic, 237 (23%) macrocytic, 151 (15%) were dimorphic and the rest (26%) had normocytic normochromic picture. 82% of microcytic hypochromic anaemias had reduced serum iron and elevated total iron binding capacity (TIBC), whereas 85% had decreased serum ferritin levels. Spectrum of haemoglobinopathies prevalent were β-Thalassemia trait (17%), followed by sickle cell trait (2.3%). Other haemoglobinopathies in descending order of frequency were sickle cell disease (1.7%), Hb D trait (1%), Hb E trait (0.8%), sickle cell – β thalassemia, Hb E disease, E – β thalassemia (0.6% each) and thalassemia major (0.4%).

Conclusion

This study provides a comprehensive database on the spectrum of haemoglobinopathies in the Armed Forces. It is suggested that detection of HbA₂ should be carried out in all the high-risk groups with anaemia.Key Words: Haemoglobinopathies, Anaemia, Thalassemia     

早发冠心病患者血清补体C3、C4水平与LDL-C的相关性分析

【目的】研究早发冠心病人群血清补体C3、C4及低密度脂蛋白胆固醇（LDL-C）水平并分析补体C3、C4与LDL-C在早发冠心病人群中的相关性。【方法】收集2018年1月至2018年9月于茂名市人民医院心血管内科住院经冠状动脉造影明确诊断为冠心病的患者共255例,分为早发冠心病组108例,晚发冠心病组147例;另收集健康体检者组100例为对照组。各项生化指标采用茂名市人民医院检验科全自动生化检测仪检验的结果。【结果】早发冠心病组、晚发冠心病组、健康体检者组的补体C3、C4及LDL-C水平比较,差异具有统计学意义（P<0.05）。早发冠心病组中补体C3、C4与LDL-C呈正相关（P<0.05）;晚发冠心病组和健康体检者组中,补体C3、C4与LDL-C无明显相关（P>0.05）。【结论】早发冠心病患者补体C3、C4水平与LDL-C呈正相关。     

Differentials and Determinants of Syndrome ‘X’ and its Role as Coronary Risk among Healthy Middle Aged Indian Army Personnel

Background

Syndrome ‘X’, a clustering of impaired glucose tolerance (IGT), raised blood pressure, raised serum triglycerides and low HDL-cholesterol, occurring under the influence of insulin resistance and resultant hyperinsulinaemia, has been hypothesised to be a major risk factor for ischaemic heart disease (IHD). However, there is a lack of research based evidence in this field, in our country.

Methods

The study was a cross-sectional analytical epidemiological design of 614 healthy Indian Army personnel, aged 35 years and above, selected by random sampling.

Results

The study indicated that there is a statistically significant (p < 0.001) clustering between fasting hyperinsulinaemia, raised blood pressure, IGT, raised triglycerides and low HDL. The prevalence of syndrome ‘X’ was 8.47% (95% CI 6.27% to 10.47%). Initial univariate and subsequent multivariate analysis using multiple logistic regression method, indicated that predictors of syndrome ‘X’ were increasing age, overweight, increasing central (abdominal) obesity, lack of adequate physical exercise and low level of physical fitness. Presence of syndrome ‘X’ increased the risk of resting ECG changes suggestive of coronary insufficiency (OR = 6.29, p < 0.001).

Conclusion

Based on the findings, recommendations for prevention of this syndrome have been submitted.Key Words: Syndrome ‘X’, Insulin resistance syndrome, Ischaemic heart disease, Coronary Risk factors, Military personnel     

血浆同型半胱氨酸与冠状动脉病变的关系探讨

目的探讨冠心病患者血浆同型半胱氨酸(Hcy)与冠状动脉病变程度的关系。方法选择行冠状动脉造影确诊为冠心病患者178例为冠心病组,并根据病变支数分为1支病变亚组(48例),2支病变亚组(57例),≥3支病变亚组(73例)。选择同期行冠状动脉造影检查正常者48例为非冠心病组。检测并比较2组患者血浆Hcy水平、总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白(HDL),并测定冠心病组冠状动脉狭窄程度,记录Gensini冠状动脉病变积分。结果冠心病组血浆Hcy水平、TC、TG均高于非冠心病组,HDL低于非冠心病组,差异均有统计学意义(P<0.05)。冠心病患者随着冠状动脉病变程度的加重,血浆Hcy水平和Gensini评分均逐渐增加,1支病变亚组<2支病变亚组<≥3支病变亚组,与非冠心病组比较差异均有统计学意义(P<0.05)。Hcy、TC、TG是冠心病的危险因子,而HDL是冠心病的保护因子(P<0.05)。结论高Hcy是冠心病独立危险因素,随着冠状动脉病变程度加重而升高,可通过检测Hcy水平评价冠状动脉病变程度。     

Serum uric acid level in newly diagnosed essential hypertension in a Nepalese population: A hospital based cross sectional study

Objective

To develop the missing link between hyperuricemia and hypertension.

Methods

The study was conducted in Department of Biochemistry in collaboration with Nephrology Unit of Internal Medicine Department. Hypertension was defined according to blood pressure readings by definitions of the Seventh Report of the Joint National Committee. Totally 205 newly diagnosed and untreated essential hypertensive cases and age-sex matched normotensive controls were enrolled in the study. The potential confounding factors of hyperuricemia and hypertension in both cases and controls were controlled. Uric acid levels in all participants were analyzed.

Results

Renal function between newly diagnosed hypertensive cases and normotensive healthy controls were adjusted. The mean serum uric acid observed in newly diagnosed hypertensive cases and in normotensive healthy controls were (290.05±87.05) µmol/L and (245.24±99.38) µmol/L respectively. A total of 59 (28.8%) participants of cases and 28 (13.7%) participants of controls had hyperuricemia (odds ratio 2.555 (95% CI: 1.549-4.213), P<0.001).

Conclusions

The mean serum uric acid levels and number of hyperuricemic subjects were found to be significantly higher in cases when compared to controls.     

Apolipoprotein E gene polymorphisms and serum cholesterol in healthy Irish adults: a proposed genetic marker for coronary artery disease risk

Background

The apolipoprotein (Apo) E gene, and thus its gene product, plays a central and pervasive role in lipid metabolism by serving as a ligand for lipoprotein receptors. Polymorphisms of this gene have been associated with variation in lipid phenotypes in some Caucasian and Asian populations, but not in others. No such study has been carried out in a resident Irish population.

Aim

A study was designed to examine the relationship between serum cholesterols and Apo E genotype in a cohort of healthy Irish adults.

Methods

One hundred healthy Irish adults, aged 19–65 years, were recruited from the Cork City area. Two fasting blood samples were collected from each subject. One was assayed for serum cholesterols — total and low-density lipoprotein (LDL), and high-density lipoprotein (HDL) — while the other sample was used for isolation of genomic DNA and determination of Apo E genotype.

Results

While the E2 (12%) was the least prevalent, E3 was the most prevalent Apo E genotype (66%) in this group of healthy Irish adults. A significant Apo E gene-dosage effect was evident, whereby individuals with the Apo E2 genotype had a lower level of total cholesterol, E3 had intermediate levels, and E4 had a higher level. Moreover, those with the Apo E4 genotype had a significantly higher level of LDL cholesterol compared to E2 or E3 genotypes. There was no significant difference in mean serum adjusted HDL-cholesterol levels between the three Apo E genotypes.

Conclusion

These findings suggest that healthy Irish adults with the Apo E4 genotype have higher serum total and LDL-cholesterol levels than those with E2 or E3 Apo E genotypes and therefore may have a higher risk of atherosclerotic coronary artery disease and coronary heart disease in later life.     

氟伐他汀对不同病变程度冠心病患者 C-反应蛋白和血脂的影响

目的观察氟伐他汀对不同病变程度冠心病患者C-反应蛋白（CRP）和血脂的影响。方法收集冠心病患者60例及健康对照组30例，测定治疗前和服用氟伐他汀8周后的血脂和CRP，并作统计学分析。结果氟伐他汀对稳定型心绞痛（SAP），不稳定型心绞痛（UAP），急性心肌梗死（AMI）患者总胆固醇（TC），低密度脂蛋白（LDL-C）和CRP均有明显降低作用，高密度脂蛋白（HDL-C）明显升高，治疗前后TC，LDL-C，HDL-C变化值均与CRP无关。结论他汀类药可能具有独立于降脂作用之外的抑制炎性活动，以及稳定动脉粥样斑块的非调脂作用。