中性粒细胞与淋巴细胞比值与冠状动脉狭窄程度的关系

目的：研究中性粒细胞与淋巴细胞比值（NLR）与冠状动脉狭窄程度的关系,探讨NLR对冠心病患者冠状动脉病变严重程度的预测作用。方法：219例患者依据冠状动脉造影结果进行冠脉Gensini评分并根据其结果将其分为低分组（0～30分）142例和高分组（〉30分）77例,检测外周血白细胞分类计数并计算NLR,应用spss17．0软件进行统计分析。结果：①NLR在不同类型冠心病患者及冠脉正常患者之间存在差异（P〈0．05）;②以冠脉Gensini积分将患者分组后,高分组NLR与低分组间差异有统计学意义（P〈0．01）,单因素及多因素Logistic回归分析显示NLR与年龄、高密度脂蛋白胆固醇均是高Gensini积分的独立危险因素;③受试者工作特征曲线（ROC曲线）显示NLR的曲线下面积为0．658（95％CI：0．583—0．733）,且当NLR切值取2．385时,其诊断效率最高,敏感性为64％,特异性为63％。结论：NLR是冠心病的独立危险因素,可作为预测冠状动脉狭窄程度的指标。     

The association between the neutrophil to lymphocyte ratio and in-hospital mortality among sepsis patients: A prospective study

The Neutrophil to lymphocyte ratio (NLR) was shown to be associated with disease severity, poor prognosis and increased mortality in sepsis. However, the association between NLR and sepsis prognosis remains controversial.Our study aims to prospectively examine the prognostic ability of NLR in predicting in-hospital mortality among sepsis patients and determine the optimal cutoff of NLR that can most accurately predict in-hospital mortality in sepsis patients. This study was a prospective cohort study that included adult sepsis patients that presented to the emergency department of a tertiary care center between September 2018 and February 2021.Receiver operating characteristic curve was used to determine the optimal cutoff of the neutrophil to lymphocyte ratio that predicts in-hospital mortality. Patients were divided into 2 groups: above and below the optimal cutoff. Stepwise logistic regression was performed to assess the magnitude of the association between NLR and in-hospital mortality.A total of 865 patients were included in the study. The optimal cutoff for the neutrophil to lymphocyte ratio that predicts in-hospital mortality was found to be 14.20 with a sensitivity of 44.8% and a specificity of 65.3% (with PPV = 0.27 and NPV = 0.80). The area under the curve for the ratio was 0.552 with a 95% confidence intervals = [0.504–0.599] with a P value = .03. Patients that have a NLR above the cutoff were less likely to survive with time compared to patients below the cutoff based on the Kaplan–Meier curves. In the stepwise logistic regression, the optimal neutrophil to lymphocyte ratio cutoff was not associated with in-hospital mortality (odds ratios = 1.451, 95% confidence intervals = [0.927–2.270], P = .103).In conclusion the optimal cutoff of the NLR that predicts in-hospital mortality among sepsis patients was 14.20. There was no association between the NLR and in-hospital mortality in sepsis patients after adjusting for confounders. Further studies with a larger sample size should be done to determine the optimal NLR cutoff and its prognostic role in septic patients (in-hospital mortality and other clinically significant outcomes).     

Application of the neutrophil to lymphocyte ratio in the diagnosis and activity determination of ulcerative colitis: A meta-analysis and systematic review

Background:The neutrophil to lymphocyte ratio (NLR) may be a potential biomarker to evaluate the condition of ulcerative colitis (UC), but whether it can determine the activity of UC is still controversial. So we conducted this meta-analysis to study the relationship between them.Methods:We searched the databases of Pubmed, Embase, Cochrane, Wanfang, and CNKI to collect qualified articles. Random effect or fixed effect model is used to calculate the standard mean difference (SMD) with 95% confidence interval (CI).Results:A total of 11 articles (including 1741 participants) were included in this meta-analysis. The results showed that the level of NLR in peripheral blood of patients with UC was significantly higher than that of control group (SMD = 1.04, 95% CI = 0.71-1.36). The NLR value of active patients was significantly higher than that of inactive patients (SMD = 1.35, 95% CI = 0.87-1.83).Conclusion:NLR may be a useful index to determine the severity and activity of UC, and it is expected to be widely used in clinical practice in the future.     

Neutrophil to lymphocyte and platelet to lymphocyte ratio in patients with dipper versus non-dipper hypertension

Background: Neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR) are associated with worse outcome in various diseases. Non-dipping blood pressure pattern is associated with higher cardiovascular mortality. The aim of this study was to explore the association between NLR and PLR in patients with dipper versus non-dipper hypertension.

Methods: The study included 166 patients with hypertension. Eighty-three patients (40 male, mean age: 49.1?±?10.5 years) had dipper hypertension, while 83 patients (41 male, mean age: 52.3?±?12.7 years) had non-dipper hypertension.

Results: Baseline demographic characteristics were similar in both groups. Patients with non-dipper hypertension had significantly higher NLR compared to dipper hypertension (2.3?±?0.9 versus 1.8?±?0.5, p?p?=?0.001). In univariate analysis, hyperlipidemia, smoking, presence of diabetes, PLR more than 107 and NLR more than 1.89 were among predictors of dipper and non-dipper status. In logistic regression analyses, only hyperlipidemia (odds ratio: 2.96, CI: 1.22–7.13) and PLR more than 107 (odds ratio: 2.62, CI: 1.13–6.06) were independent predictors of dipper and non-dipper status. A PLR of 107 or higher predicted non-dipper status with a sensitivity of 66.3% and specificity of 68.7%.

Conclusion: We demonstrated that patients with non-dipper hypertension had significantly higher NLR and PLR compared to dipper hypertension, which has not been reported previously. Moreover PLR more than 107 but not NLR was independent predictor of non-dipper status.     

Neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR) were useful markers in assessment of inflammatory response and disease activity in SLE patients

Objective: Although there have been extensive investigations on neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR) and mean platelet volume (MPV) in many diseases, their roles in systemic lupus erythematosus (SLE) remain unclear. The purpose of the present study was to evaluate NLR, PLR, and MPV levels in adult SLE patients and explore their clinical significance.

Methods: A retrospective study involving 154 adult SLE patients and 151 healthy controls was performed. All clinical characteristics of the SLE patients were extracted from their medical records. NLR, PLR, and MPV levels between SLE patients and healthy controls were compared, and correlations between these indexes and clinical characteristics were analyzed.

Results: Increased NLR, PLR, and MPV were observed in SLE patients. NLR was positively correlated with C-reaction protein (r?=?0.509, p?<?0.01), erythrocyte sedimentation rate (r?=?0.610, p?<?0.01), and SLE Disease Activity Index (SLEDAI) scores (r?=?0.471, p?<?0.01). PLR was positively correlated with SLEDAI scores (r?=?0.44, p?<?0.01). SLE patients with nephritis had higher NLR and PLR levels than those without nephritis (p?<?0.01, p?=?0.03). In addition, an NLR level of 2.065 was determined as predictive cut-off value of SLE (sensitivity 74.7%, specificity 77.5%, AUC?=?0.828). Multiple regression analysis suggested that NLR was independently associated with SLE disease activity.

Conclusions: NLR and PLR could reflect inflammatory response and disease activity in SLE patients.     

非瓣膜性心房颤动患者左心房血栓形成与外周血中性粒细胞/淋巴细胞比值的关系

目的]探讨非瓣膜性心房颤动(NVAF)患者左心房血栓形成与外周血中性粒细胞/淋巴细胞比值(NLR)的关系。 [方法]选取2016年3月—2020年8月于本院接受诊疗的NVAF患者207例,根据外周血NLR水平分为低NLR组和高NLR组,比较两组患者的临床资料,分析NLR与临床指标及左心房血栓发生的相关性,分析左心房血栓发生的影响因素及各因素的预测价值。 [结果]与低NLR组相比,高NLR组CHADS2评分、CHA2DS2-VASc评分、NLR、D-二聚体(D-D)、血清尿酸(SUA)、脑钠肽(BNP)、C反应蛋白(CRP)、左心房内径(LAD)、二尖瓣舒张早期血流速度峰值(E)与二尖瓣环舒张早期运动速度峰值(Em)的比值(E/Em)均显著升高,左心房射血分数(LAEF)显著降低(P＜0.05)。NLR与CHADS2评分、CHA2DS2-VASc评分、D-D、SUA、BNP、CRP、LAD、E/Em均呈显著正相关,与LAEF呈显著负相关(P＜0.000 1)。CHADS2评分、CHA2DS2-VASc评分、NLR、D-D、SUA、BNP、CRP、LAD、E/Em与左心房血栓的发生均呈显著正相关(P＝0.000),LAEF与左心房血栓的发生呈显著负相关(P＝0.000)。CHADS2评分、CHA2DS2-VASc评分、NLR、D-D以及LAD是左心房血栓发生的危险因素(P＜0.05)。NLR取最佳截断值1.85,预测NVAF左心房血栓发生的ROC曲线下面积为0.806(95%CI:0.746～0.865),灵敏度为74.82%(95%CI:0.668～0.818),特异度为67.65%(95%CI:0.552～0.785)。 [结论]NLR水平升高使NVAF患者左心房血栓形成的风险明显增加。作为NVAF患者左心房血栓形成的独立危险因素,NLR对左心房血栓具有一定的预测价值。     

早期高血压患者心外膜脂肪厚度与颈动脉内中膜厚度的相关性

目的分析早期原发性高血压(高血压)患者心外膜脂肪(epicardial adipose tissue,EAT)厚度与颈动脉内中膜层厚度(carotid artery intima-media thickness,CIMT)是否存在关联,并探讨其关联的密切程度,为临床实践提供依据。方法调查100例高血压患者的EAT、CIMT及相关临床、生理、生化等指标,采用相关和回归分析某些重要指标的关联性。结果在EAT>8 mm组,体质量指数、C反应蛋白、舒张压、收缩压、CIMT等均明显高于EAT<8 mm组,差异有统计学意义(P<0.05)。EAT与CIMT呈正相关关系(r=0.674,P=0.000),回归方程y=0.0457x+0.6291(R2=0.454,R=0.674,F=95.632,P=0.000)。舒张压、EAT及年龄是CIMT独立的影响因素(P<0.05)。结论早期高血压患者的EAT与CIMT存在重要的关联性,可以通过检测患者的EAT或CIMT预测心血管疾病的危险性。     

中性粒细胞淋巴细胞比值与急性心肌梗死的相关性研究

【】目的 评估中性粒细胞淋巴细胞比值对急性心肌梗死的临床价值。方法选取在我院住院的AMI和冠心病患者,所有患者均行冠状动脉造影,分为AMI组和冠心病组,比较两组患者基线资料,分析中性粒细胞淋巴细胞比值与急性心肌梗死的关系。 结果 ①与冠心病组相比,AMI组患者的Neu水平(t= -10.501,P<0.01)及NLR水平(t=--10.695,P<0.01)明显升高,Lym水平(t= 2.603,P=0.01)明显降低,具有统计学差异;②急性心肌梗死发生的多元logistic回归分析示,NLR是急性心肌梗死发生的危险因素(OR：2.116,95%CI：1.313-3.411,P=0.002);③PLR取3.528作为预测患者发生急性心肌梗死的临界值时,曲线下面积0.869[95%CI：0.824-0.915],灵敏性为0.831,特异性为0.771,P<0.01。结论 NLR与急性心肌梗死有关,可以预测急性心肌梗死的发生。     

The role of neutrophil to lymphocyte ratio for the assessment of liver fibrosis and cirrhosis: a systematic review

Introduction: Neutrophil to lymphocyte ratio (NLR) is widely used to assess inflammatory diseases. We performed a systematic review to explore the prognostic role of NLR for the assessment of liver fibrosis and cirrhosis.

Areas covered: We searched the PubMed and EMBASE databases for the eligible papers which explored the association between NLR and liver fibrosis/cirrhosis or investigated the prognostic value of NLR in cirrhotic patients.

Expert commentary: In accordance with assessment of liver fibrosis stage, we classified papers into four subgroups by etiology. For the patients with nonalcoholic fatty liver disease (NAFLD) there was a significant association between NLR and fibrosis stage and nonalcoholic fatty liver disease activity score (NAS), while NLR had a negative correlation with fibrosis stage for the patients with chronic hepatitis B (CHB). As for the patients with and chronic hepatitis C (CHC), NLR might not be significantly associated with fibrosis stage. Moreover, NLR seemed to be significantly useful for predicting outcomes in cirrhotic patients. Hence, NLR might be associated with liver fibrosis stage, especially in patients with NAFLD. Furthermore, NLR might be a useful biomarker for evaluating the prognosis in cirrhotic patients.     

外周血中性粒细胞/淋巴细胞比值与透析患者冠状动脉钙化的关系

目的 通过透析患者资料分析该人群冠状动脉钙化(CAC)的危险因素,探讨中性粒细胞/淋巴细胞比值(NLR)对CAC的预测价值。方法 采用横断面调查方法,对163例透析患者(包括血液透析102例,腹膜透析61例)进行回顾性研究,根据多层螺旋CT评估结果,采用Agatston冠状动脉钙化积分(CACS)进行冠状动脉钙化程度的评估,将透析患者分成无钙化组59例(CACS 0～10分)和钙化组104例(CACS≥11分)。对两组患者的NLR、年龄、透析龄、高敏C反应蛋白(hs-CRP)、血钙、血磷、全段甲状旁腺激素(iPTH)、白蛋白(Alb)、血红蛋白、血清肌酐等指标进行统计学比较。应用Spearman相关性分析得出与CAC相关的因素,二元Logistic回归分析CAC发生的危险因素,受试者工作特征(ROC)曲线探讨NLR对CAC的预测价值。结果 163例透析患者中CAC总检出率为63.8%。钙化组NLR显著高于无钙化组(P＜0.001)。将钙化组分为轻度钙化组(CACS 11~400分)和重度钙化组(CACS＞400分),两亚组间NLR差异无统计学意义。Spearman相关性分析显示NLR与CAC显著相关(r＝0.403,P＜0.001)。二元Logistic回归分析结果显示年龄(OR=1.069,P＜0.001)、透析龄(OR=1.024,P＜0.001)、糖尿病(OR=15.871,P＝0.012)、NLR(OR=1.720,P＝0.001)是CAC的危险因素。ROC曲线分析结果显示,NLR与年龄的联合指标预测透析患者发生CAC时,曲线下面积为0.810(95%CI 0.739~0.880,P＜0.001),显著高于NLR(0.742,95%CI 0.666~0.818,P＜0.001)和年龄(0.754,95%CI 0.674~0.834,P＜0.001)单独分析时的曲线下面积。结论 高龄、透析龄和高水平NLR的透析患者发生CAC的风险较高,且NLR与年龄的联合指标对CAC的发生有着较好的预测价值。     

Investigation of the relationship between asthma and subclinical atherosclerosis by carotid/femoral intima media and epicardial fat thickness measurement

Objective: Since asthma and atherosclerosis may share similar pathophysiological mechanism, this study is planned to investigate whether epicardial fat thickness (EFT), carotid and femoral intima media thicknesses, which are markers of subclinical atherosclerosis, are increased in patients with asthma. Methods: The study was designed as a cross-sectional study. A total of 154 participants (83 patients with asthma and 71 healthy volunteers) were enrolled into the study. Epicardial fat, carotid, and femoral intima media thicknesses were measured and recorded in both groups. The statistical difference between the two groups was examined. Results: Both carotid and femoral intima media thicknesses were significantly higher in patients with asthma compared to control group (5.52 ± 0.4 mm vs. 5.36 ± 0.4 mm; p = 0.038 and 5.64 ± 0.4 mm vs. 5.46 ± 0.5 mm; p = 0.036, respectively). However, there was not a significant difference in EFT between the groups [5.9 mm (5.3–6.6; IQR = 1.3) vs. 5.6 mm (4.7–6.5; IQR = 1.8); p = 0.1]. On comparison of control group and asthma subgroups (mild, moderate, and severe), there was a statistically significant difference among these four groups in terms of carotid and femoral intima media thicknesses (p = 0.002 and p < 0.001, respectively). Subgroup analyses showed that this difference was mainly due to patients with severe asthma. Conclusions: Carotid and femoral intima media thicknesses in asthmatic patients were found to be increased compared to the normal population. As a result, the risk of subclinical atherosclerosis in asthmatic patients may be high.     

Elevated blood neutrophil to lymphocyte ratio in older adults with cognitive impairment

BackgroundPrevious studies have assessed the association of neutrophil to lymphocyte ratio (NLR) with cognitive impairment (COI) in clinical settings. Whether NLR is associated with COI among free-living seniors at population level remains unknown.ObjectivesWe aimed to assess the relationship between NLR and COI among community-dwelling older adults and the predictive value of NLR for COI screening in the community.MethodsData of 4579 older adults aged 60 or older in Weitang Geriatric Diseases study, a community-based cross-sectional study conducted in Suzhou located in the east part of China, were analyzed. The NLR was calculated as the absolute neutrophil count divided by the absolute lymphocyte count. Cognitive function of the participants was assessed using the Abbreviated Mental Test.ResultsCompared to those in the first quartile of NLR, older adults in the 4th quartile of NLR had a greater risk of COI (odds ratio = 1.34, 95 % confidence interval = 1.06–1.69). Elevated NLR quartile was associated with increasing risk of COI (p value for trend = 0.02). Addition of NLR to the conventional risk factors model could improve the correct reclassification of COI about 9.0 % (p = 0.02) and integrated discrimination improvement value was 0.0012 (p = 0.09).ConclusionsWe found that elevated NLR was associated with an increased risk of COI and whether NLR may act as a clinically relevant predictor for COI among community-dwelling older adults could not be determined.     

Increased neutrophil to lymphocyte ratio predicts myocardial injury in patients undergoing non-cardiac surgery

Background

The neutrophil to lymphocyte ratio (NLR), has been proposed as potential indicator of cardiovascular events. Our aim was to determine the relationship between NLR and development of myocardial injury after non-cardiac surgery (MINS).

Prechemotherapy neutrophil : lymphocyte ratio is superior to the platelet : lymphocyte ratio as a prognostic indicator for locally advanced esophageal squamous cell cancer treated with neoadjuvant chemotherapy

The study aimed to evaluate the prognostic significance of prechemotherapy neutrophil to lymphocyte ratio and platelet to lymphocyte ratio, and preoperative neutrophil to lymphocyte ratio and platelet to lymphocyte ratio in locally advanced esophageal squamous cell cancer. We analyzed retrospectively locally advanced esophageal squamous cell cancer patients who had received neoadjuvant chemotherapy before undergoing a radical esophagectomy between 2009 and 2012. Neutrophil to lymphocyte ratio and platelet to lymphocyte ratio before chemotherapy and before the surgery were calculated. Univariate analyses showed that prechemotherapy neutrophil to lymphocyte ratio >5 (P = 0.048, hazard ratio = 2.86; 95% confidence interval: 1.01–8.12) and prechemotherapy platelet to lymphocyte ratio >130 (P = 0.025, hazard ratio = 5.50; 95% confidence interval: 1.23–24.55) were associated significantly with overall survival (OS), and prechemotherapy platelet to lymphocyte ratio >130 (P = 0.026, hazard ratio = 3.18; 95% confidence interval: 1.15–8.85) was associated significantly with progression‐free survival. However, only prechemotherapy neutrophil to lymphocyte ratio >5 (P = 0.024, hazard ratio = 3.50; 95% confidence interval: 1.18–10.40) remained significantly associated with OS in multivariate analyses. Neither preoperative neutrophil to lymphocyte ratio nor platelet to lymphocyte ratio was associated with OS or progression‐free survival. The prechemotherapy neutrophil to lymphocyte ratio >5 to preoperative neutrophil to lymphocyte ratio ≤5 group showed significantly worse OS than the prechemotherapy neutrophil to lymphocyte ratio ≤5 to preoperative neutrophil to lymphocyte ratio ≤5 group (P = 0.050). The prechemotherapy platelet to lymphocyte ratio >130 to preoperative platelet to lymphocyte ratio ≤130 group (P = 0.016) and platelet to lymphocyte ratio >130 to preoperative platelet to lymphocyte ratio >130 group (P = 0.042) showed significantly worse OS than the prechemotherapy platelet to lymphocyte ratio ≤30 to preoperative platelet to lymphocyte ratio ≤130 group. In conclusions, prechemotherapy neutrophil to lymphocyte ratio is an independent prognostic factor for OS in patients with advanced esophageal squamous cell cancer treated with neoadjuvant chemotherapy, and, as an adverse prognostic predictor, increased prechemotherapy neutrophil to lymphocyte ratio is superior to platelet to lymphocyte ratio. Maintaining a low neutrophil to lymphocyte ratio and platelet to lymphocyte ratio throughout treatment is a predictor of better OS.     

Correlation between neutrophil‐to‐lymphocyte ratio and kidney dysfunction in undiagnosed hypertensive population from general health checkup

Recently, neutrophil‐to‐lymphocyte ratio (NLR) and monocyte‐to‐lymphocyte ratio (MLR) are frequently used to evaluate disease progression and outcome. Here, we aim to analyze the associations between NLR or MLR and kidney function in undiagnosed hypertensive individuals from general population during routine health checkup. Liver function was analyzed for comparison. From 2011 to 2016, 53 939 examiners have registered for health checkup in Yanbian University Hospital, Yanbian, China. Among 15 219 participants who have complete datasets, 4997 individuals were hypertensive (HTN, SBP/DBP: ≥ 140/90 mm Hg). NLR, glucose, lipids (Chol, TG, LDL), kidney (CREA, BUN), and liver (AST, ALT, GGT, ALB, TBIL) functional parameters were significantly higher in HTN. Pearman correlation analysis showed that NLR was positively correlated with SBP and CREA only in HTN. MLR was associated with CREA in both HTN and non‐HTN. NLR or MLR was associated with liver functions similarly in HTN and non‐HTN. The authors then divided NLR or MLR into tertiles (NLR: 0‐1.7276, 1.7276‐3, >3; MLR: 0‐0.1845, 0.1845‐0.3, >0.3). NLR was positively associated with BUN at NLR >1.7276 and with CREA at all tertiles in HTN. MLR was correlated with CREA and BUN at high MLR in non‐HTN. Further analysis showed that age or gender did not affect the associations of NLR and MLR with kidney function in HTN, but strong association was observed in male or aged (>65 years old) non‐HTN group. These results showed that NLR could be used as a cost‐effective predictor of kidney abnormality in HTN patients even in a general population.     

The relation between epicardial fat thickness and metabolic syndrome

Epicardial fat thickness releases numerous markers which play an important role in MetS. In addition, MetS may be associated with oxidative stress, endothelial dysfunction, and atherosclerosis. Various studies highlighted the importance of EFT in line with inflammatory status in cardiovascular diseases. EFT values are linked to abdominal visceral adiposity and subclinical atherosclerosis, which seems to have high capacity of proinflammatory activity. No matter how EFT is measured, it gives clinicians important data for assessing patients inflammatory status     

Assessment of neutrophil to lymphocyte ratio,C-reactive protein,mean platelet volume in obese,and nonobese patients with polycystic ovary syndrome

Polycystic ovary syndrome (PCOS) is associated with low-grade chronic inflammation.This was a retrospective case–control study.In the present study, the risk coefficients of neutrophil to lymphocyte ratio (NLR), high-sensitive C-reactive protein (hs-CRP), and mean platelet volume (MPV) in obese patients with PCOS were determined. This study was designed to investigate NLR, hs-CRP, and MPV levels in 68 obese patients with PCOS and 44 nonobese patients with PCOS, and our study group was matched with 47 obese and 43 nonobese controls, respectively.PCOS group had higher MPV, NLR, insulin, glucose, and HOMA-IR rates than those of the controls. Subgroup analyses revealed that the obese PCOS group had higher NLR, hs-CRP, and MPV levels compared to those of controls. The obese PCOS group had higher NLR, hs-CRP, and MPV levels compared to those of the nonobese PCOS group. The odds ratios and 95% confidence intervals of those variables (NLR, hs-CRP, MPV) were found significant (P < .05). NLR, hs-CRP, and MPV variables were found statistically significant in the analysis of receiver operating characteristics.Our study demonstrated that NLR, hs-CRP, and MPV levels are increased in patients with obese PCOS.