Increased Serum Leptin Levels in New-Onset, Untreated Female Patients with Coronary Artery Disease and Positively Associated with Inflammatory Markers

2018 ◽  
Vol 72 (2) ◽  
pp. 142-148 ◽  
Author(s):  
Ying Du ◽  
Sheng-Hua Yang ◽  
Sha Li ◽  
Xi Zhao ◽  
Yan Zhang ◽  
...  

Background/Aims: Previous studies have suggested that leptin was associated with atherosclerosis and involved in inflammation. Gender differences between leptin and inflammatory markers have been evaluated less in untreated patients with stable coronary artery disease (CAD). Methods: In this study, a total of 394 consecutive Chinese patients who received coronary artery angiography were enrolled, including 243 patients with CAD and 151 non-CAD controls. The baseline clinical characteristics were collected and serum leptin levels were determined using ELISA. Results: The relation of serum leptin levels to inflammatory markers was found only in female patients. Leptin and white blood cell count (WBCC) as well as its subsets were significantly higher in female patients than female controls. In female patients, leptin was positively associated with C-reactive protein (CRP; r = 0.28, p = 0.016), WBCC (r = 0.261, p = 0.02), neutrophil, r = 0.268, p = 0.018, and monocyte, r = 0.228, p = 0.044. Multivariable regression analysis revealed that leptin was significantly and independently associated with CRP (β = 0.317, p = 0.004), WBCC (β = 0.278, p = 0.020), neutrophil (β = 0.262, p = 0.032), and monocyte (β = 0.245, p = 0.032). Conclusions: The serum leptin levels were higher in female patients and independently associated with CRP, WBCC, and its subsets, suggesting a potential interaction between leptin and inflammation in female CAD patients.

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
W Sun ◽  
B Yan

Abstract Purpose Ticagrelor plus aspirin has been shown to reduce the incidence of cardiovascular (CV) events compared to asprin alone in patients with stable coronary artery disease and diabetes in the THEMIS trial. This study aimed to estimate the potential CV benefit of adding ticagrelor to aspirin among a THMEIS-like Chinese population. Methods We retrospectively analyzed 13,322 patients with stable coronary artery disease and diabetes from 16 public hospitals in Hong Kong between August 2015 and July 2020. 5,642 (42.4%) patients who met inclusion and exclusion criteria of the THEMIS trial were included in final analysis. Estimated absolute risk reduction (eARR) in major adverse CV event (MACE, composite of myocardial infarction (MI), ischemic stroke or CV death) and number needed to treat (eNNT) were extrapolated based on results of the THEMIS trial. Results Of 5,642 THEMIS-like patients (62.1% male; mean age 69.6±10.4 years), 26.5% had history of percutaneous coronary intervention (PCI). During a median follow-up of 17.5 (IQR: 9.3–41.3) months, rates of MACE, MI, stroke and CV-death were 10.7% (n=605), 5.3% (n=298), 2.5% (n=139) and 5.5% (n=308), respectively. Kaplan-Meier estimates at 36 months stratified by history of PCI or not were 16.9% vs. 14.0% for MACE and 9.0% vs 6.7% for MI (both Log-rank p<0.01). Among THEMIS-like and THEMIS-PCI-like patients, eARR with ticagrelor plus aspirin was 1.4% (eNNT=71) and 1.6% (eNNT=63) for MACE and 1.5% (eNNT=67) and 1.9% (eNNT=53) for MI, respectively. Conclusion Approximately one third of Chinese patients with stable coronary artery disease and diabetes met THEMIS trial criteria. Combined therapy of ticagrelor and aspirin might provide similar clinical benefit in our population observed in the THEMIS trial, with low number needed to treat, especially in patients with previous PCI. FUNDunding Acknowledgement Type of funding sources: None.


2020 ◽  
Author(s):  
Yan Zhang ◽  
Jing-Lu Jin ◽  
Ye-Xuan Cao ◽  
Hui-Hui Liu ◽  
Hui-Wen Zhang ◽  
...  

Abstract Background: Elevated lipoprotein(a) [Lp(a)] and fibrinogen (Fib) are both associated with coronary artery disease (CAD). The atherogenicity of Lp(a) can be partly due to the potentially antifibrinolytic categories. We hypothesize that patients with higher Lp(a) and Fib may have worse outcomes. Methods: In this prospective study, we consecutively enrolled 8,417 Chinese patients with stable CAD from March 2011 to March 2017. All subjects were divided into 9 groups according to Lp(a) (Lp(a)-Low, Lp(a)-Medium, Lp(a)-High) and Fib levels (Fib-Low, Fib-Medium, Fib-High) and followed up for CVEs, including nonfatal acute myocardial infarction, stroke, and cardiovascular mortality. Kaplan-Meier, Cox regression and C-statistic analyses were performed.Results: During a median of 37.1 months’ follow-up, 395 (4.7%) CVEs occurred. The occurrence of CVEs increased by Lp(a) (3.5% vs. 5.3% vs. 5.6%, p=0.001) and Fib (4.0% vs. 4.4% vs. 6.1%, p<0.001) categories. When further classified into 9 groups by Lp(a) and Fib levels, the CVEs were highest in the 9th (Lp(a)-High and Fib-High) compared with the 1st (Lp(a)-Low and Fib-Low) group (7.2% vs. 3.3%, p<0.001). The highest risk of subsequent CVEs was found in the 9th group (HRadjusted 2.656, 95% CI 1.628-4.333, p<0.001), which was more significant than Lp(a)-High (HRadjusted 1.786, 95% CI 1.315-2.426, p<0.001) or Fib-High (HRadjusted 1.558, 95% CI 1.162-2.089, p=0.003) group. Moreover, adding the combined Lp(a) and Fib increased the C-statistic by 0.013.Conclusion: Combining Fib and Lp(a) enhance the prognostic value for incident CVEs beyond Lp(a) or Fib alone.


2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Silvia Bueno Garofallo ◽  
Vera Lucia Portal ◽  
Melissa Medeiros Markoski ◽  
Lucinara Dadda Dias ◽  
Alexandre Schaan de Quadrosa ◽  
...  

Background. Recruitment of monocytes and low-grade inflammation process are both involved in obesity and in atherosclerosis. Thus, the aim of this study was to evaluate the correlation among indicators of adiposity, monocyte subtypes, and inflammatory markers in patients with stable coronary artery disease (CAD). Methods. This was a cross-sectional study including 97 patients with stable CAD aged >40 years. Traditional anthropometric indicators of adiposity (body mass index (BMI); waist, hip, and neck circumferences; and waist-hip ratio) and nontraditional anthropometric indicators of adiposity (lipid accumulation product index (LAP), visceral adiposity index (VAI), and deep-abdominal-adipose-tissue index (DAAT)) were determined. Immunoprecipitation, turbidimetry, coagulometric method, and CBA were used for the evaluation of inflammatory markers (hs-CRP, IL-2, IL-4, IL-6, IL-10, and INF-γ). Monocyte subtypes were identified by flow cytometry and defined as CD14++ CD16− (Mon1), CD14++ CD16+ (Mon2), and CD14+ CD16++ (Mon3). Pearson’s correlation coefficient and adjusted partial correlation were calculated. Results. Monocyte subtypes were correlated with inflammation regardless of nutritional status according to BMI. In overweight individuals, LAP was correlated with IL-4 and fibrinogen (P<0.01 and P<0.05, respectively) and VAI with IL-4 (P<0.05). In obese patients, the BMI, waist, neck, and hip circumferences, and DAAT were correlated with IL-6 (P<0.05), regardless of age and sex. The hip circumference was correlated positively with Mon1 (r = 0.40, P=0.007) and negatively with Mon3 (r = −0.35, P=0.02) in obese subjects. Conclusion. Monocyte subtypes are correlated with inflammation in patients with stable CAD independently of BMI, whereas traditional and nontraditional indicators of adiposity are correlated differently with inflammatory markers and monocytes, according to the nutritional status.


2009 ◽  
Vol 24 (3) ◽  
pp. 212 ◽  
Author(s):  
Hyo-Jin Lee ◽  
Sung-Ho Her ◽  
Yun-Sun Im ◽  
Kang-Yeon Won ◽  
Sun-Hong Yoo ◽  
...  

PLoS ONE ◽  
2012 ◽  
Vol 7 (10) ◽  
pp. e46356 ◽  
Author(s):  
Jan-Willem E. M. Sels ◽  
Ellen H. A. M. Elsenberg ◽  
Imo E. Hoefer ◽  
Anton Jan van Zonneveld ◽  
Johan Kuiper ◽  
...  

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Yan Zhang ◽  
Jing-Lu Jin ◽  
Ye-Xuan Cao ◽  
Hui-Hui Liu ◽  
Hui-Wen Zhang ◽  
...  

Abstract Background Elevated lipoprotein(a) [Lp(a)] and fibrinogen (Fib) are both associated with coronary artery disease (CAD). The atherogenicity of Lp(a) can be partly due to the potentially antifibrinolytic categories. We hypothesize that patients with higher Lp(a) and Fib may have worse outcomes. Methods In this prospective study, we consecutively enrolled 8,417 Chinese patients with stable CAD from March 2011 to March 2017. All subjects were divided into 9 groups according to Lp(a) (Lp(a)-Low, Lp(a)-Medium, Lp(a)-High) and Fib levels (Fib-Low, Fib-Medium, Fib-High) and followed up for CVEs, including nonfatal acute myocardial infarction, stroke, and cardiovascular mortality. Kaplan–Meier, Cox regression and C-statistic analyses were performed. Results During a median of 37.1 months’ follow-up, 395 (4.7%) CVEs occurred. The occurrence of CVEs increased by Lp(a) (3.5 vs. 5.3 vs. 5.6%, p = 0.001) and Fib (4.0 vs. 4.4 vs. 6.1%, p < 0.001) categories. When further classified into 9 groups by Lp(a) and Fib levels, the CVEs were highest in the 9th (Lp(a)-High and Fib-High) compared with the 1st (Lp(a)-Low and Fib-Low) group (7.2 vs. 3.3%, p < 0.001). The highest risk of subsequent CVEs was found in the 9th group (HRadjusted 2.656, 95% CI 1.628–4.333, p < 0.001), which was more significant than Lp(a)-High (HRadjusted 1.786, 95% CI 1.315–2.426, p < 0.001) or Fib-High (HRadjusted 1.558, 95% CI 1.162–2.089, p = 0.003) group. Moreover, adding the combined Lp(a) and Fib increased the C-statistic by 0.013. Conclusion Combining Fib and Lp(a) enhance the prognostic value for incident CVEs beyond Lp(a) or Fib alone.


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