scholarly journals Association of Lipoprotein-Associated Phospholipase A2 with Coronary Artery Disease in African-Americans and Caucasians

2010 ◽  
Vol 95 (5) ◽  
pp. 2376-2383 ◽  
Author(s):  
Erdembileg Anuurad ◽  
Zeynep Ozturk ◽  
Byambaa Enkhmaa ◽  
Thomas A. Pearson ◽  
Lars Berglund

Abstract Context: Lipoprotein-associated phospholipase A2 (Lp-PLA2) is bound predominately to low-density lipoprotein and has been implicated as a risk factor for coronary artery disease (CAD). Objective: We investigated the association between Lp-PLA2 and CAD in a biethnic African-American and Caucasian population. Design: Lp-PLA2 mass, activity, and index, an integrated measure of mass and activity, and other cardiovascular risk factors were determined in 224 African-Americans and 336 Caucasians undergoing coronary angiography. Main Outcome Measures: We assessed the distribution of Lp-PLA2 levels and determined the predictive role of Lp-PLA2 as a risk factor for CAD. Results: Levels of Lp-PLA2 mass and activity were higher among Caucasians compared with African-Americans (293 ± 75 vs. 232 ± 76 ng/ml, P < 0.001 for mass and 173 ± 41 vs. 141 ± 39 nmol/min/ml, P < 0.001 for activity, respectively). However, Lp-PLA2 index was similar in the two groups (0.61 ± 0.17 vs. 0.64 ± 0.19, P = NS). In both ethnic groups, Lp-PLA2 activity and index was significantly higher among subjects with CAD. African-American subjects with CAD had significantly higher Lp-PLA2 index than corresponding Caucasian subjects (0.69 ± 0.20 vs. 0.63 ± 0.18, P = 0.028). In multivariate regression analyses, after adjusting for other risk factors, Lp-PLA2 index was independently (odds ratio 6.7, P = 0.047) associated with CAD in African-Americans but not Caucasians. Conclusions: Lp-PLA2 activity and index was associated with presence of CAD among African-Americans and Caucasians undergoing coronary angiography. The findings suggest an independent impact of vascular inflammation among African-Americans as contributory to CAD risk and underscore the importance of Lp-PLA2 as a cardiovascular risk factor.

2021 ◽  
pp. 41-45
Author(s):  
Saroj Mandal ◽  
Vignesh. R ◽  
Sidnath Singh

BACKGROUND:Coronary artery disease (CAD) is one of the most common causes of mortality and morbidity in both developed and developing countries. It is a leading cause of death in India, and its contribution to mortality is rising. Considering the increasing burden of coronary artery disease and its mortality and the usefulness of identifying risk factors, studying the clinical profile and angiographic pattern will help us intervene the disease at various levels which can help control the morbidity and mortality of coronary artery diease. MATERIALS AND METHOD: The present study was conducted in the Department of Cardiology,IPGMER & SSKM Hospital,Kolkata during the period of January 2019 to December 2019.This is a hospital based observational prospective study with prospective data collection,where all patients of coronary artery disease who had undergone coronary angiography has been taken into consideration to find out the risk factors,clinical profiles and angiographic patterns in coronary artery disease patients in Kolkata. RESULTS: Maximum patients were present in the age group 51-60 years of age.Mean age is 56.7+11.6sd.Male patients were 70% and female patients were 30%.Most common symptom was chest pain,90% of patients had it during the time of presentation.The next frequent symptom was shortness of breath which was seen in 52% of patients. Most common risk factor was smoking which was seen in 58% of patients.Next frequent risk factor being hypertension seen in 43.5% of patients.Obesity was seen in 59.2% of patients.On coronary angiography,40% of patients had Single vessel CAD,27.3% had double vessel CAD,23.5% had Double vessel CAD,6.5% had Non-Significant CAD and 2.7% had Normal coronaries(recanalized epicardial coronaries).LAD was involved in 73.5% of patients,51.7 % had RCA involved,43.5 % had LCX involved and LMCA was involved in 1.7% of patients. CONCLUSION:Smoking and hypertension are the most common risk factors.Single vessel disease is the most common angiographic pattern.Risk factors should be addressed properly to decrease the morbidity and mortality of coronary artery disease


2013 ◽  
Vol 5 (2) ◽  
Author(s):  
Loretta C. Wangko ◽  
Bambang Budiono ◽  
Reginald L. Lefrandt

Abstrak: Dewasa ini, akses transradial  lebih banyak digunakan oleh para ahli kardiologi intervensi, baik untuk prosedur diagnosis maupun intervensi koroner. Diameter dalam arteri radialis kanan berperan penting dalam keberhasilan prosedur transradial ini. Faktor risiko penyakit arteri koroner (CAD) dapat memengaruhi diameter dalam arteri radialis kanan, antara lain melalui vasokonstriksi, pembentukan plak ateroma, dan arteriosklerosis. Penelitian ini bertujuan untuk mendapatkan korelasi diameter dalam arteri radialis kanan dengan faktor risiko CAD tertentu (hipertensi, diabetes melitus, dislipidemia, dan merokok). Sebagai subyek penelitian, digunakan pasien yang menjalani angiografi koroner di Rumah Sakit Awal Bros Makassar sejak Juli sampai dengan Desember 2012 secara retrospektif. Jumlah sampel sebesar 110 pasien; 43 pasien dengan fakor risiko 0 (skor 0); 32 dengan satu faktor risiko (skor 1); 23 dengan dua faktor risiko (skor 2); dan 12 dengan tiga atau lebih faktor risiko (skor 3). Korelasi diameter dalam arteri radialis kanan dengan jumlah faktor risiko dihitung dengan uji korelasi Spearman. Hasil penelitian memperlihatkan terdapat korelasi negatif yang kuat antara diameter dalam arteri radialis kanan dan peningkatan faktor risiko (korelasi Spearman -0,001). Uji Spearman menunjukkan bahwa hipertensi dan diabetes melitus berkorelasi negatif dengan diameter dalam arteri radialis kanan (koefisien korelasi -0,067 dan -0,176), sedangkan dislipidemia dan merokok tidak. Simpulan: Pada pasien yang menjalani angiografi koroner di Rumah Sakit Awal Bros Makassar sejak Juli sampai dengan Desember 2012 terdapat faktor risiko CAD yang berpengaruh negatif terhadap diameter dalam arteri radialis kanan. Hipertensi dan diabetes melitus memperkecil diameter dalam arteri radialis kanan secara bermakna, sedangkan dislipidemia dan merokok tidak memengaruhinya. Kata kunci: diameter dalam, arteri radialis kanan, faktor risiko, penyakit arteri koroner.     Abstract: Nowadays, the transradial access has become the preference of most intervention cardiologists, either for diagnostic or intervention coronary procedures. The inner diameter of the right radial artery plays a very important role in the success of this transradial procedure. Risk factors of coronary artery diseases (CAD) can influence the diameter of the right radial arteries (RRAs), e.g. by vasocontriction, atheroma plaque forming, and arteriosclerosis. This study aimed to find out the correlation of inner diameters of the RRAs to certain risk factors of CAD (hypertension, diabetes mellitus, dyslipidemia, and smoking). We retrospectively reviewed all patients that underwent coronary angiography in Awal Bros Hospital Makassar from July until December 2012. The total number of patients was 110: 43 patients with zero risk factor (scored 0); 32 with one risk factor (scored 1); 23 with two risk factors (scored 2); and 12 with three or more risk factors (scored 3). The correlation of inner diameters of the right radial arteries with the number of risk factors was calculated by using the correlative test of Spearman. The results showed that there was a strong negative correlation between the inner diameters of RRAs and the increase of risk factors (Spearman correlation - 0.001). The Spearman test showed that hypertension and diabetes melllitus was negatively correlated to the inner diameters of RRAs (correlation coefficient - 0.067 and – 0.176, respectively), while dyslipidemia and smoking showed no correlation with the decrease of the inner diameters of RRAs. Conclusion: Among patients that underwent coronary angiography in Awal Bros Hospital Makassar from July until December 2012, there were certain risk factors that negatively affected the inner diameters of RRAs. Hypertension and diabetes mellitus significantly decreased the inner diameters of RRAs, while dyslipidemia and smoking did not affect the radial arteries. Keywords: inner diameter, right radial artery, risk factors, coronary artery disease.


2021 ◽  
Vol 12 (10) ◽  
pp. 39-46
Author(s):  
Subhasish Singh ◽  
Rashmita Pradhan

Background: In order to facilitate diagnosis and timely intervention, it is essential to understand the presentation pattern of cardiac symptoms, and distribution of risk factors in women with Coronary Artery Disease (CAD). However, limited data is available regarding the salient features of CAD in women like distribution of risk factors and anatomical extent. Aims and Objective: The purpose of the present study was to determine the clinical and risk factor profile of women admitted with CAD and to analyze their angiographic findings in relation to the clinical presentation and risk factors in a tertiary care referral center of eastern India. Materials and Methods: In this study we prospectively analysed risk factors and angiographic patterns of 140 consecutive female patients who underwent coronary angiography for suspected CAD over a period of 2 years. Results: CAD most commonly affected females of age group >60yrs with higher incidence among postmenopausal as compared to premenopausal women. Unstable angina was the commonest presentation among patients with normal coronaries as well as obstructive CAD.A substantial percentage of women presenting with anginal pain were angiographically normal. Hypertension was the most common associated risk factor followed by diabetes, elevated total cholesterol, high LDL & low HDL. Most common coronary angiography finding was single vessel disease. On analysis, diabetes mellitus, elevated cholesterol, elevated LDL & triglycerides were most commonly associated with triple vessel disease. Conclusion: The incidence of CAD in females increased with age. Single vessel disease was the commonest presentation with Left Anterior Descending Artery, the most frequently involved vessel.


Circulation ◽  
2018 ◽  
Vol 138 (Suppl_1) ◽  
Author(s):  
Benjamin Dao ◽  
Bishoy Elbebabawy ◽  
Ibrahim Sayid ◽  
Jagdesh Kandala ◽  
Harish Raj Seetha Rammohan ◽  
...  

Introduction: Our group has shown the Wnt-pathway to be a key regulator of SMC function and to be expressed in human coronary atheroma. Dickkopf-related protein 1 (DKK-1) is a member of the Wingless (Wnt) signaling pathway molecules and has recently been shown to improve GRACIE-risk factor score prediction of coronary events in chest pain patients and to predict restenosis post coronary stenting. We tested its association with coronary plaque burden and cardiovascular risk factors in comparison with CRP-1; Hypothesis: DKK-1 may be associated with coronary artery plaque burden and cardiovascular risk factors and play a role in coronary artery disease through modulation of SMC. Methods: 218 patients with angiographic evidence of CAD (mildly obstructive CAD, n=35; obstructive stable CAD, n=154; unstable CAD, n=29) were enrolled in this study at the time of cardiac catherization. DKK-1 and CRP-1 were measured by ELISA. Data are shown as Mean p SEM. Values of DKK-1 and CRP1 were skewed, so non-parametric tests were used to determine the associations between DKK-1 and CRP-1 with Syntax Score, age, BMI, LDL, HDL, and HgbA1c. . Spearman’s Rank Order Correlation, Wilcoxon Rank Sum Test, and analysis of variance (ANOVA) were used to assess associations. Results: Data are shown as Mean p SEM.Variables were as follows: DKK-1 736 pg/ml p 129, CRP-1 0.108 mg/ml p 0.01, age 66 years p 1, BMI 32 p 0.5, LDL 97 p 3, HDL 46 p 2, HgbA1C 6.5 p 0.2, Syntax score 11 p 0.7. With DKK-1 the only statistically significant correlation observed was between DKK-1 and HgbA1c (r=0.18, P<0.05). There was no association between DKK-1 and CRP-1, Syntax Score, Age, BMI, LDL, and HDL. With CRP-1, however, we observed significant positive correlations with Syntax Score (r=0.2, P<0.05), BMI (r=0.18, P<0.05), LDL (r=0.18, P<0.05) and significant negative correlation with age (r= -0.19, P<0.05) and with HDL (r=-0.18, P<0.05). There was no association between CRP-1 and HDL as well as HgbA1c. Conclusions: In patients with angiographically established CAD DKK-1 in contrast to CRP-1 is not a predictor of coronary plaque burden and has as only significant association a positive correlation with HgbA1c. Our data suggest that the reported role of DKK-1 in coronary event risk and in restenosis might be related to Diabetes mediated effects.


2021 ◽  
Vol 8 ◽  
Author(s):  
Matthieu Bailly ◽  
Frédérique Thibault ◽  
Maxime Courtehoux ◽  
Gilles Metrard ◽  
Denis Angoulvant ◽  
...  

Purpose: The aim of this study was to assess the results of cadmium zinc telluride (CZT)- single-photon emission computed tomography (SPECT) myocardial flow reserve (MFR) in coronary artery disease (CAD) screening regarding clinical risk and its correlation to invasive coronary angiography (ICA).Methods: A total of 137 patients (61 male and 76 female) referred for CAD screening myocardial perfusion imaging (MPI) between November 2018 and April 2020 were included in the CFR-OR prospective trial. The 10-year risk of cardiovascular death according to the European Society of Cardiology (SCORE) was calculated. SPECT 1-day 99mTc-tetrofosmin protocol was acquired on CZT cardiac-dedicated pinhole cameras. Low-dose thoracic CT was used for coronary calcium score (CCS) evaluation. ICA, when performed within 3 months, was also analyzed.Results: Mean SCORE and mean global MFR were, respectively, 4 ± 3.1% and 2.50 ± 0.74; 34 patients had impaired CFR (using a threshold of 2). There was a significant inverse correlation between MFR and SCORE (p = 0.006), gender (p = 0.019), and number of cardiovascular risk factors (p = 0.01). MFR was significantly reduced in patients with CCS above 1 (p = 0.01). No significant correlation was found between MFR and individual cardiovascular risk factors (dyslipidemia, hypertension, diabetes, or family history of CAD). A total of 23 patients underwent ICA. Global MFR SPECT sensitivity and specificity were 83.3 and 100 %, respectively, with an area under the curve of 0.94.Conclusion: Adding MFR to SPECT MPI for CAD screening on CZT camera may contribute to high-risk patient identification and enhance diagnostic performances. MFR could help physician decision to perform ICA.


2016 ◽  
Vol 8 (2) ◽  
pp. 138-142
Author(s):  
Kazi Nazrul Islam ◽  
Abdul Wadud Chowdhury ◽  
Azizul Hasan Khondoker ◽  
Md Serajul Haque ◽  
KMN Sabah ◽  
...  

Background: Hyperhomocysteinemia is known as an independent risk factor of atherosclerosis. But the probable role of Hyperhomocysteinemia in Premature Coronary Artery Disease (CAD) is not well studied. The aim of this study was to assess the role of serum homocysteine on angiographically documented CAD in younger and older ischaemic heart disease (IHD) patients.Methods: Total 120 patients with IHD admitted in the Department of Cardiology, Dhaka Medical College Hospital for CAG were selected by purposive sampling method and divided into two groups. 60 patients in Group-I, d” 40 years of age (Younger); 60 patients in Group-II, >40 years of age (Older). Homocysteine was measured in all patients and other demographical and clinical data were collected. Homocysteine level was correlated with the presence and severity of CAD.Results: Smoking, positive family history of IHD, dyslipidaemia and hyper homocysteinemia were important risk factors in younger IHD patients. Whereas, hypertension, diabetes mellitus and dyslipidaemia were important cardiovascular risk factors in older age group. Obesity was not an important risk factors as evidenced by mean BMI. Serum homocysteine was not well related to presence of CAD or extent of CAD in older IHD patients. However in younger patients hyperhomocysteinemia was related to both presence and severity of CAD.Conclusion: In younger IHD patients hyperhomocysteinemia is an important cardiovascular risk factor. But in older patients it loses its significance. So serum homocysteine level should be screened routinely in younger IHD patients.Cardiovasc. j. 2016; 8(2): 138-142


2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Xuan Wang ◽  
Dehao Yu ◽  
Junrui Wang ◽  
Junjie Huang ◽  
Wenqing Li

A combination of various risk factors results in the development of coronary heart disease. The earlier that one identifies and deals with reversible risk factors for coronary heart disease, the greater the chance of recovery. The main goal of this research is to learn whether risk variables are associated with greater extent of coronary artery disease in people with coronary heart disease. This article selects 290 patients who had had coronary angiography in our hospital from September 2018 to March 2019 using a retrospective research and analytic methodology. Coronary angiography split the patients into two groups: those with coronary heart disease and those without. To determine the correlation between risk factors and a score related to heart disease, computer-aided statistical analysis of data about the differences in those risk factors was performed. The results were analyzed using the Spearman correlation and partial correlation, and the relationship between risk factors and Gensini score was analyzed by multiple linear regression. For the analysis, binary logistic regression was used to calculate the correlation between the risk factors of coronary heart disease and the probability of developing coronary heart disease. The findings concluded that increased age, smoking, elevated hs-CRP, HbA1c, hypertension, diabetes, and hyperuricemia are all contributors to coronary heart disease. Coronary heart disease is an independent risk factor for this condition. Many of the factors that play a role in the long-term development of the severity of coronary artery disease, such as hypertension, diabetes, smoking, elevated hs-CRP, decreased HDL-C, raised LDL-C, and TG, are commonly found in men. hs-CRP is the primary risk factor for the degree of coronary artery stenosis and could contribute to the progression of the condition by playing a major role in creating more stenosis.


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