Neutrophil-lymphocyte Ratio Levels Research Articles

Association of neutrophil-lymphocyte ratio with survival in peripheral early-stage non–small-cell lung cancer after stereotactic body radiation therapy.

e20547 Background: Prior studies have demonstrated that neutrophil-lymphocyte ratio (NLR) can predict overall survival in patients undergoing stereotactic body radiation therapy (SBRT) for multiple types of cancer. The role of neutrophil-lymphocyte ratio (NLR) as a predictor for survival in single fraction SBRT-treated non-small cell lung cancer (NSCLC) patients remains unclear. Methods: A single-institution database of peripheral early-stage NSCLC patients treated with SBRT from February 2007 to May 2022 was queried. Consecutive patients with peripheral early-stage NSCLC (T1-2N0M0) and a complete blood count within six months of the start of SBRT treatment were included. Patients treated with SBRT regimens of more than 3 fractions were excluded as these regimens were reserved for patients with centrally located lesions with higher risk of toxicity which could affect survival. Optimal threshold of neutrophil-lymphocyte ratio (NLR) was defined based on maximally selected rank statistics. Cox multivariable analysis (MVA), Kaplan-Meier, and propensity score matching were performed to evaluate outcomes. Results: A total of 286 patients (164 female [57.3%]; median [IQR] age 76 [69-81] years) were included for analysis with median follow up of 19.7 months. The median NLR was 3.06 ([IQR] 2.21-4.33). There were 15 local failures, 27 nodal failures, and 50 distant failures. On Cox multivariate analysis, as a continuous variable, NLR was shown to be an independent predictor of OS (adjusted hazards ratio [aHR] 1.06, 95% CI 1.02-1.10, p = 0.005; Figure 1) and PFS (aHR 1.05, 95% CI 1.01-1.09, p = 0.013; Figure 1). In addition, NLR was associated with DF (aHR 1.11, 95% CI 1.05-1.18, p < 0.001; Figure 1). Maximally selected rank statistics determined 3.28 as the cutoff point of high NLR versus low NLR. These findings were confirmed upon propensity matching. Conclusions: Pretreatment NLR is an independent predictor for survival outcomes of peripheral early-stage NSCLC patients after SBRT. High NLR is associated with worse overall survival, progression-free survival, and distant metastasis. Pretreatment NLR levels should be tracked on trials for early-stage NSCLC patients.

Neutrophil-lymphocyte ratio as a predictor of delirium tremens in hospitalized patients with alcohol withdrawal.

Delirium Tremens (DT) is a severe form of alcohol withdrawal that can be fatal if not recognized early and treated appropriately. In our study, we aimed to determine the role of Neutrophil-Lymphocyte ratio (NLR), a marker of systemic inflammation, in predicting the development of DT. This retrospective study was conducted in an alcohol and drug treatment center between March 2017 and March 2020. A total of 212 patients with a diagnosis of alcohol use disorder who were admitted to a special care unit after alcohol withdrawal were included. Blood tests were collected within 24 hours of the patients' admission. Comparisons were made according to whether the patients developed DT during the hospitalization. DT was diagnosed in 24.1% of the patients. It was determined that higher NLR level (odds ratio [OR]: 4.38, 95%CI: 2.58-7.43) and history of DT (OR: 1.33, 95%CI: 1.23-11.73) are independent risk factors for the development of DT in the logistic regression analysis. The optimal cut-off value of NLR in predicting DT was 2.67 (sensitivity: 82.4%, specificity: 88.8%). The ROC curve of NLR showed a larger area under the curve (AUC) than the curves of other systemic inflammation markers. NLR is a simple, practical and inexpensive marker that can predict the development of DT in patients with alcohol withdrawal syndrome.

Interleukin-6 and Neutrophil–Lymphocyte Ratio in Predicting Outcome of Confirmed COVID-19 Patients

Introduction: COVID-19 emerged as a pandemic about 2 years ago. Severe and critical COVID-19 has been associated with increased interleukin 6 (IL-6) level and neutrophil–lymphocyte ratio (NLR). This study aimed to test whether IL-6 and/or NLR are associated with COVID-19 mortality. Methods: Subjects were COVID-19 patients with suspected Omicron variant infection that were hospitalized at Dr. Moewardi Hospital from October 2021 to March 2022. According to their medical records, subjects were divided into survivor and non-survivor groups. Serum level of IL-6 and NLR at admission were recorded, compared, and analyzed for association with mortality. Results: Seventy-four respondents, average age 53.07 ± 16.2 years, joined the research. The area under curve (AUC) value of IL-6 was 0.740, with a cut-off value of 42.00 mg/dL (73.9% sensitivity; 70.6% specificity). The AUC value of NLR was 0.721, with a cut-off value of 5.51 (73.9% sensitivity; 60.8% specificity). IL-6 had a higher odds ratio than NLR as a risk factor for mortality (6.80 [95% CI 2.24–20.61; p < 0.001]; 4.39 [95% CI 1.48–13.03; p < 0.001], respectively). The correlation between IL-6 and NLR had an r-value of 0.164 (p = 0.164). Conclusion: There was no difference in sensitivity between IL-6 level and NLR as mortality predictors of COVID-19, but serum IL-6 level was more specific. IL-6 level correlated positively with NLR, but there was no significance.

Evaluation of Haematological Parameters and Uric Acid in the Diagnosis of Late Onset Neonatal Sepsis.

Introduction A number of parameters studied in a whole blood count can be helpful in the diagnosis of neonatal sepsis. The platelet/lymphocyte ratio (PLR) is a systemic inflammatory marker in early sepsis and has been used as a diagnostic indicator in cardiovascular events and cancer. Being one of the major antioxidants in human biological fluids, serum uric acid is responsible for neutralising free radicals. The red cell distribution width/platelet ratio (RPR) is a diagnostic marker in adult inflammatory diseases. The objective of our study is to investigate the relationship of late neonatal sepsis with whole blood count parameters and serum uric acid levels. Materials and methods Newborns older than postnatal three days who had clinical and laboratory findings of sepsis were included in the study. The study included 140 newborns who were divided into three groups, 53 in the culture-proven late sepsis group, 47 in the clinical sepsis group, and 40 in the healthy control group. The whole blood count parameters and serum uric acid levels were examined in both the clinical sepsis and proven sepsis patients at the time when they were diagnosed with sepsis. Results The birth week was significantly lower in the evidenced and clinical sepsis patients compared to the healthy control group. Development of late sepsis was significantly higher in the male gender than in healthy controls. Serum uric acid levels were significantly higher in proven or clinical sepsis than in healthy controls. The level of serum uric acid (3.77±1.6) in proven sepsis was significantly higher than the control group (2.83±1.1). The uric acid level had an area under the curve (AUC) 0.552-0.717, 35% sensitivity, 95% specificity, 94.6% positive predictive value (PPV), and 36.9% negative predictive value (NPV) in the diagnosis of proven and clinical late sepsis. Neutrophil/lymphocyte ratio (NLR) was significantly higher in proven sepsis than in healthy newborns and was higher in the clinical sepsis group than in the proven sepsis group (p: 0.002). While the mean eosinophil value was 618.5±472.1 in proven sepsis, it was 549.3±294.9 in the control group and there was a statistically significant difference between the two groups (p: 0.036). Conclusion In late-onset neonatal sepsis, the NLR level was higher, and the eosinophil level was lower in the clinical sepsis patients than in healthy newborns. We believe that a higher level of serum uric acid in sepsis is effective in the early diagnosis of patients who also had other clinical findings of sepsis.

Determining clinical biomarkers to predict long-term SARS-CoV-2 antibody response among COVID-19 patients in Bangladesh.

Information on antibody responses following SARS-CoV-2 infection, including the magnitude and duration of responses, is limited. In this analysis, we aimed to identify clinical biomarkers that can predict long-term antibody responses following natural SARS-CoV-2 infection. In this prospective study, we enrolled 100 COVID-19 patients between November 2020 and February 2021 and followed them for 6 months. The association of clinical laboratory parameters on enrollment, including lactate dehydrogenase (LDH), neutrophil-lymphocyte ratio (NLR), C-reactive protein (CRP), ferritin, procalcitonin (PCT), and D-dimer, with predicting the geometric mean (GM) concentration of SARS-CoV-2 receptor-binding domain (RBD)-specific IgG antibody at 3 and 6 months post-infection was assessed in multivariable linear regression models. The mean ± SD age of patients in the cohort was 46.8 ± 14 years, and 58.8% were male. Data from 68 patients at 3 months follow-up and 55 patients at 6 months follow-up were analyzed. Over 90% of patients were seropositive against RBD-specific IgG till 6 months post-infection. At 3 months, for any 10% increase in absolute lymphocyte count and NLR, there was a 6.28% (95% CI: 9.68, -2.77) decrease and 4.93% (95% CI: 2.43, 7.50) increase, respectively, in GM of IgG concentration, while any 10% increase for LDH, CRP, ferritin, and procalcitonin was associated with a 10.63, 2.87, 2.54, and 3.11% increase in the GM of IgG concentration, respectively. Any 10% increase in LDH, CRP, and ferritin was similarly associated with an 11.28, 2.48, and 3.0% increase in GM of IgG concentration at 6 months post-infection. Several clinical biomarkers in the acute phase of SARS-CoV-2 infection are associated with enhanced IgG antibody response detected after 6 months of disease onset. The measurement of SARS-CoV-2 specific antibody responses requires improved techniques and is not feasible in all settings. Baseline clinical biomarkers can be a useful alternative as they can predict antibody response during the convalescence period. Individuals with an increased level of NLR, CRP, LDH, ferritin, and procalcitonin may benefit from the boosting effect of vaccines. Further analyses will determine whether biochemical parameters can predict RBD-specific IgG antibody responses at later time points and the association of neutralizing antibody responses.

Neutrophil-Lymphocyte Ratio, Monocyte-Lymphocyte Ratio and Platelet-Lymphocyte Ratio in Manic Episode Patients with Bipolar Disorder

Objective: Inflammation is one of several etiopathological mechanisms contributing to bipolar disorder. Neutrophil-lymphocyte ratio (NLR), monocyte-lymphocyte ratio (MLR), and platelet-lymphocyte ratio (PLR) are relatively cheap hematological parameters recommended to measure the level of inflammation. In this study, the NLR, MLR, and PLR values of the same patients during manic and euthymic periods were compared to a healthy control group. Methods: This retrospective study was conducted on inpatients with bipolar disorder manic episodes at the University Faculty of Medicine psychiatry clinic. Ninety-nine patients with manic episodes of bipolar disorder and age and gender-matched 101 volunteers without prior psychiatric illness were included in the study. Neutrophil, lymphocyte, monocyte, and platelet counts during the disease period were recorded, and NLR, MLR, and PLR values were calculated from these values. Similar hematological parameters of the same patients in the euthymic period after discharge were compared. Results: Patients with manic episodes were shown to have significantly higher neutrophil, platelet, NLR, MLR, and PLR levels than the control group (p<0.001). Monocyte count was significantly lower in manic episode patients compared to controls (p<0.001). Neutrophil and monocyte counts were significantly lower during the euthymic period compared to the control group, while NLR, MLR, and PLR levels were higher (p<0.001). Conclusions: The fact that NLR, MLR, and PLR are higher in BD patients compared to the healthy control group in both manic and euthymic periods indicates that they can be used as trait biomarkers.

Neutrophil-to-lymphocyte ratio trend at admission predicts adverse outcome in hospitalized respiratory syncytial virus patients

Background and aimsSevere cases of respiratory syncytial virus (RSV) infection are relatively rare but may lead to serious clinical outcomes, including respiratory failure and death. These infections were shown to be accompanied by immune dysregulation. We aimed to test whether the admission neutrophil-to-leukocyte ratio, a marker of an aberrant immune response, can predict adverse outcome. MethodsWe retrospectively analyzed a cohort of RSV patients admitted to the Tel Aviv Medical Center from January 2010 to October 2020d. Laboratory, demographic and clinical parameters were collected. Two-way analysis of variance was used to test the association between neutrophil-lymphocyte ratio (NLR) values and poor outcomes. Receiver operating characteristic (ROC) curve analysis was applied to test the discrimination ability of NLR. ResultsIn total, 482 RSV patients (median age 79 years, 248 [51%] females) were enrolled. There was a significant interaction between a poor clinical outcome and a sequential rise in NLR levels (positive delta NLR). The ROC curve analysis revealed an area under curve (AUC) of poor outcomes for delta NLR of (0.58). Using a cut-off of delta = 0 (the second NLR is equal to the first NLR value), multivariate logistic regression identified a rise in NLR (delta NLR>0) as being a prognostic factor for poor clinical outcome, after adjusting for age, sex and Charlson comorbidity score, with an odds ratio of 1.914 (P = 0.014) and a total AUC of 0.63. ConclusionsA rise in NLR levels within the first 48 h of hospital admission can serve as a prognostic marker for adverse outcome.

Prognostic importance of neutrophil-lymphocyte ratio in non-dialysis chronic kidney disease patients—a hospital-based prospective cohort

Aim: In patients with cancer, ischemic heart disease, and peripheral vascular disease, the neutrophil-lymphocyte ratio (NLR), a measure of systemic inflammation, has been demonstrated to predict mortality. This study aimed to evaluate the inflammatory status, and also examine the impact of NLR on renal outcomes (mortality and composite endpoints) in non-dialysis chronic kidney disease (CKD) patients. Methods: This prospective cohort was conducted at a tertiary care public teaching hospital. The NLR greater than 3.53 was taken as an indication of systemic inflammation. The outcome measures include composite endpoints (end-stage renal disease, dialysis commencement, doubling serum creatinine from the baseline), and mortality. Kaplan-Meier plots and a multivariate Cox proportional hazard model were employed to analyze the outcomes. Results: A cohort of 360 patients aged 53.7 years ± 13.9 years had a median follow-up of 14 months ± 4.24 months and was evaluated for inflammatory status and renal outcomes. The proportion of inflammation was found to be 101 (28.7%). Higher NLR levels had shown an increased incidence of mortality (5.3%) and composite endpoints (12.3%). In reference to the NLR quartile (Q1), the highest quartile (Q4) had shown 3 times increased hazards for mortality and 95.0% increased risk of hazards for composite endpoints Q4 hazard ratio (HR) 3.09; 95% confidence interval (CI) 1.38–6.91 (P = 0.006), and Q4 HR 1.93; 95% CI 1.22–3.08 (P = 0.005), respectively. Higher NLR was positively associated with urea, creatinine, alkaline phosphatase, Pt-Global web tool©/Patient-Generated Subjective Global Assessment score and negatively correlated with estimated glomerular filtration rate, albumin, hemoglobin. Conclusions: NLR is a potential predictor of mortality and composite endpoints in CKD patients even before they undergo dialysis. Additionally, inflammation should be regarded as a common comorbid condition in CKD patients due to its high prevalence.

Analysis of NLR in Type 2 Diabetes Mellitus with and without Diabetic Foot Ulcer

Patients with type 2 diabetes mellitus (T2DM) have increased followed by complications including diabetic foot ulcer. Systemic inflammatory conditions in T2DM with diabetic foot ulcers can be assessed by inflammatory markers. Neutrophil Lymphocyte Ratio (NLR) is a good indicator of systemic inflammatory conditions. A retrospective study of the medical record at Dr. Wahidin Sudirohusodo Hospital, Makassar from September 2019 – September 2021 involved 120 patients consisting of 60 patients for each group of T2DM with and without diabetic foot ulcers. Leukocytes, neutrophils, lymphocytes, and NLR based on routine blood results using the flow cytometry method. Mann-Whitney test was used for comparison between the two groups on NLR and Kruskal-Wallist test was used for the relationship between NLR and Wagner classification. There was a significant difference in leukocytes, neutrophils, lymphocytes, and NLR in T2DM patients with diabetic foot ulcers compared to those without 16.2±8.6 and 9.8±4.2 103/µL (p<0.001); 13.3±8.4 and 5.0±3.8 103/µL(p<0.001); 1.6±1.7 and 2.5±2.5 103/µL(p<0.001); 10.0±10.1 and 3.5±4.5, respectively. The relationship between the NLR and Wagner classification was the highest at Wagner grade 5 (12.87±5.0) and the lowest was at Wagner grade 2 (6.18±7.83) with significant statistical test results (p<0.037). There was increasing NLR in T2DM with diabetic foot ulcers due to systemic inflammation. The NLR integrates different immune pathways, such as neutrophils as an inflammatory response and lymphocytes controlling the inflammatory response. Lymphocytes count and NLR level on T2DM with diabetic foot ulcer were higher than those without diabetic foot ulcer.

Evaluation of the uric acid and hematological parameters in patients with nodal hand osteoarthritis

Objectives: To compare patients with symptomatic nodal hand osteoarthritis (OA) with a control group in respect of inflammation parameters, uric acid, and hematological parameters. Methods: The study included 50 post-menopausal female patients, aged 40-80 years, diagnosed with symptomatic nodal hand OA, and a control group of 50 post-menopausal females in the same age range with no hand OA. Patient data including age, monocyte, neutrophil, lymphocyte, and thrombocyte counts, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) level, uric acid level, and the Kellgren-Lawrence (KL) score obtained from evaluations of hand radiographs, were recorded retrospectively from the hospital information system. The neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), and monocyte-lymphocyte ratio (MLR) were calculated. The data were compared between the two groups. Results: The data of 100 females were compared, comprising a patient group of 50 patients with symptomatic nodal OA, and a control group of 50 females. Age, monocyte, neutrophil, lymphocyte, and thrombocyte counts, NLR, PLR, MLR, ESR, CRP, and uric acid level were compared. With the exception of MLR and ESR, no statistically significant difference was determined between the two groups. The MLR was determined to be statistically significantly higher in the control group than in the patient group (p = 0.024). The ESR was determined to be statistically significantly higher in the patient group than in the control group p < 0.001). When patients with a KL score of 2 and 3 were compared, with the exception of age, no other difference was determined. Patients with a KL score of 3 were seen to be significantly older (p = 0.032). Conclusions: ESR was determined to be significantly higher in patients with symptomatic nodal OA. Clarification of the relationship between inflammation, uric acid, and hand OA, which is a heterogeneous disease, will be useful in the follow-up and treatment of patients.

The diagnostic value of the systemic immune-inflammatory index in acute appendicitis cases in the emergency department.

Acute appendicitis (AA) is one of the most common causes of acute abdomen conditions and continues to cause mortality and morbidity despite all the improvements. There is still a necessity for inexpensive and easily calculable index and scoring systems with fewer side effects for the diagnosis of AA and the detection of complications. Since the systemic immune-inflammation index (SIII) is an index that could be used in this context, we aimed to measure the success and reliability of SIII for the diagnosis of AA and related complications and to contribute to the literature. Our study was carried out retrospectively in a tertiary care hospital and conducted with 180 AA patients (study group-SG) and 180 control group (CG) patients. Demographic data, laboratory data, and clinical data of the cases, as well as the Alvarado score (AS), adult appendicitis score (AAS), and SIII and neutrophil/lymphocyte ratio (NLR) values calculated from laboratory data, were recorded in the previously created study form. p<0.05 was accepted as the significance level for the study. In this study, age and gender were similar in the SG and CG groups. SIII and NLR levels calculated in SG cases were found to be significantly higher than CG. In addition, SIII and NLR levels were found to be significantly higher in complicated AA cases than in complicated cases. Although SIII was more significant in the diagnosis of AA, NLR was more successful than SIII in detecting the presence of complications. SIII, NLR, AAS, and AS were significantly positively correlated in the diagnosis of AA. In the presence of peritonitis, SIII and NLR were also found to be significantly higher when compared to cases without peritonitis. We found that SIII is a usable index in the diagnosis of AA and the prediction of complicated AA. However, NLR was found to be more significant than SIII in estimating complicated AA. In addition, it is recommended to be careful in terms of peritonitis in cases with high SIII and NLR levels.

Systemic Inflammatory Marker Levels in Serous Macular Detachment Secondary to Retinal Vein Occlusion.

To evaluate the association of systemic inflammatory marker levels in macular edema with serous macular detachment (SMD) secondary to retinal vein occlusion (RVO). Patients diagnosed with RVO were categorized into two groups based on the presence or absence of SMD: Group 1 included 30 eyes with SMD, while Group 2 included 30 eyes without SMD. Levels of neutrophils, monocytes, lymphocytes, thrombocytes, and mean platelet volume (MPV) were analyzed. Systemic inflammatory markers, including neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), and systemic immune-inflammation index (SII), were calculated and compared between the two groups. The mean neutrophil levels were significantly higher in Group 1 (P = 0.002). The mean lymphocyte, monocytes, thrombocyte, and MPV levels did not differ significantly between groups. NLR and SII levels were significantly higher in the SMD group (P = 0.004 and P = 0.016, respectively). There was no significant difference between the groups in terms of PLR. The optimal receiver operator characteristic (ROC) cut-off value of NLR for SMD was calculated as 1.55 with 73% sensitivity and 63% specificity (area under the curve [AUC] = 0.714, 95% confidence interval [CI]: 0.584-0.845). The optimal ROC cut-off value of SII for SMD was calculated as 451.75 with 63% sensitivity and 63% specificity (AUC = 0.681, 95% CI: 0.546-0.816). In this study, branch RVO was present in 48 patients, and central RVO was present in 12 patients. Neutrophil, MPV levels, and NLR, PLR, SII ratios were similar between patients with branch and central occlusion. Neutrophil levels, NLR, and SII were found to be significantly higher in eyes with SMD secondary to RVO.

Importance of the neutrophil-lymphocyte ratio and systemic immune-inflammation index in predicting colorectal pathologies in fecal occult blood-positive patients.

The fecal occult blood (FOB) test is one of the primary screening methods for colorectal cancer (CRC). In this study, we aimed to investigate the effect of the neutrophil/lymphocyte ratio (NLR) and systemic immune-inflammation index (SII) in predicting CRC and other colorectal pathologies in patients with a positive FOB test. This retrospective study included patients with a positive FOB test who underwent colonoscopy for the investigation of the etiology. The optimal cutoff levels of NLR and SII for predicting colorectal pathologies were determined using the receiver operating characteristic analysis. Of the 157 FOB+ patients, 35% were male and 65% were female, with a median age of 59 years. There were 96 patients in Group 1 and 61 patients in Group 2. The mean age of the patients in Group 2 was significantly higher (p < 0.001). The rate of male patients was significantly higher in Group 2. NLR and SII were significantly higher in Group 2 than in Group 1 (p < 0.001). The area under the curve values of NLR and SII in predicting colorectal pathologies in FOB+ patients were 0.817 and 0.825, respectively. At the cutoff values of 0.689 and 0.795, NLR and SII had a sensitivity of 60.66% and 95.83%, respectively, and a specificity of 95.83% and 100%, respectively. Neutrophil/lymphocyte ratio and SII can be used as important biomarkers in the early diagnosis of CRC and other colorectal lesions in patients with a positive FOB test.

Association between neutrophil/lymphocyte ratio and kidney impairment in type 2 diabetes mellitus: A role of extracellular water/total body water ratio

AimsWe explored the predictive utility of baseline neutrophil/lymphocyte ratio (NLR), which reflects a systemic inflammatory tone, in kidney impairment in type 2 diabetes mellitus (T2DM); and investigated the effect of extracellular water/total body water (ECW/TBW) ratio on the relationship. MethodsThis longitudinal study included 1,224 T2DM adults recruited from a single centre. Cox regression analyses examined the association between NLR and progressive kidney function decline or albuminuria progression. Improvements in risk discrimination were assessed using Harrell’s concordance-statistics. The mediatory role of ECW/TBW ratio estimated by bioelectrical impedance was evaluated. ResultsHigher baseline NLR levels were observed in cases with kidney function decline or albuminuria progression over a median 2-year follow-up. NLR independently predicted progressive kidney function decline (hazard ratio:1.39, 95% CI:1.21–1.60, P < 0.001) or albuminuria progression (hazard ratio:1.34, 95% CI:1.08–1.68, P = 0.009). Addition of NLR to a base model comprising demographics, T2DM duration, metabolic and renal parameters, and medications significantly improved the risk discrimination of kidney function decline (P = 0.022) but not albuminuria progression. ECW/TBW ratio accounted for 19.7% of the total effect between NLR and kidney function loss. ConclusionsIncreased NLR reflecting systemic inflammation is associated with progressive kidney function decline in T2DM, partially explained by dysregulated body fluid balance.

Change of complete blood count parameters according to blood type and smoking

In this study, it was aimed to investigate the change in the parameters of complete blood count depending on blood type and smoking status. The individuals were grouped according to their blood group type and status of cigarette use, and the statistical differences in their levels of Neutrophil/Lymphocyte ratio (NLR), Platelet/Lymphocyte ratio (PLR), and Mean Platelet Volume/Lymphocyte ratio (MPVLR) were evaluated.3119 individuals participated in the study. 26.67% of them were smokers. According to the ABO blood group system, 44.47% of the participants had type A, 32.48% had type O, 16.09% had type B, and 6.96% had type AB. 88.81% of the participants were Rh(+) and 11.19% of them were Rh(-). The NLR, PLR, and MPVLR of the smokers were higher than those of the non-smokers. The participants’ NLR, PLR, and MPVLR levels showed statistically significant differences depending on ABO and Rh blood groups. This difference was seen to arise from ARh (+) individuals. The NLR, PLR, and MPVLR levels were the highest in ARh (+) individuals and the lowest in the ABRh (-) individuals. The NLR, PLR, and MPVLR values were the highest in the ARh (+) smokers and the lowest in ABRh (-) non-smokers. It was found that there were significant differences in the participants’ blood count parameters depending on blood type and smoking status. This may imply that ARh (+) individuals who smoke have higher parameters than those who have other blood groups and do not smoke, which may be beneficial in predicting the risk of chronic inflammation-related diseases.

Lower omega-3 status associated with higher erythrocyte distribution width and neutrophil-lymphocyte ratio in UK Biobank cohort

High red blood distribution width (RDW) is associated with decreased red blood cell deformability, and high neutrophil-lymphocyte ratio (NLR) is a biomarker of systemic inflammation and innate-adaptive immune system imbalance. Both RDW and NLR are predictors of chronic disease risk and mortality. Omega-3 index (O3I) values have previously been shown to be inversely associated with RDW and NLR levels. Our objective was to determine if total plasma long chain omega-3 fatty acids (Omega3%) measured in the UK Biobank cohort were associated with RDW and NLR values. RDW- and NLR- relationships with Omega3% were characterized in 109,191 adults (58.4% female). RDW- and NLR-Omega3% relationships were inversely associated with Omega3% (both p < 0.0001). These cross-sectional associations confirm previous findings that increasing RDW and NLR values are associated with low O3I. The hypothesis that RDW and/or NLR values can be reduced in individuals with less-than optimal long chain omega 3 values need to be tested in randomized controlled intervention trials using EPA and/or DHA.

Correlation between neutrophil/lymphocyte ratio, platelet/lymphocyte ratio and postoperative cognitive dysfunction in elderly patients with esophageal cancer.

The present study intends to investigate the correlation between neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR) and postoperative cognitive dysfunction (POCD) in elderly patients with esophageal cancer. Elderly patients >65 years old with esophageal cancer in our department from October 2017 to June 2021 were included in the study. The cognitive function of the patients was assessed by the mini-mental state examination (MMSE) Scale at 1day, 3 days, and 7days after surgery. POCD was considered when the scores were <27 points, and the remaining patients were included in the control group. A total of 104 elderly patients with esophageal cancer were included in this study, and 24 patients developed POCD, with an incidence of 23.1%. The expression of NLR and PLR in both 2 groups was increased on the 1st postoperative day compared with that before surgery. There was no significant difference in the expression of NLR and PLR between the 2 groups before operation, but the expression of both in the POCD group was significantly higher than that in the control group after operation (P < .05). Logistic regression analysis showed that smoking, postoperative NLR and postoperative PLR were independent risk factors for POCD. Spearman test showed that NLR was negatively correlated with MMSE scores at postoperative 1 day and 3 days (P < .05), while PLR was negatively correlated with MMSE scores at postoperative 1 day, 3 days and 7 days (P < .05). The Area Under receiver operating characteristic curve (AUC) of postoperative NLR for predicting POCD in elderly patients with esophageal cancer was 0.656, and the AUC of postoperative PLR was 0.722. After combination of NLR and PLR, the AUC increased to 0.803 with the sensitivity of 66.7% and specificity of 82.5%. The expression level of postoperative NLR and PLR in elderly patients with esophageal cancer combined with POCD is significantly increased, which is associated with postoperative cognitive impairment. Moreover, the combination of NLR and PLR has a good predictive ability for POCD, which could be used as a potential biomarker for early diagnosis of POCD.

Importance of hematological markers in familial Mediterranean fever in terms of disease severity and amyloidosis.

There are limited follow-up parameters for familial Mediterranean fever (FMF) related to disease severity and amyloidosis. Some hematological markers are emerging to assess inflammation. In this study, we hypothesized that some hematological parameters could be used to determine disease severity and amyloidosis in FMF. We included 274 adult FMF patients, and evaluated the relationship between neutrophil lymphocyte ratio (NLR), monocyte-lymphocyte ratio (MLR) and platelet-lymphocyte ratio (PLR), platelet counts and leukocyte counts, mean erythrocyte haemoglobin concentration (MCHC) and mean erythrocyte haemoglobin (MCH) with disease severity and amyloidosis. First, we classified patients according to disease severity and presence of amyloidosis. We then compared the parameters within the groups. In addition, we determined predictive cut-off values with ROC analysis. Finally, we correlated the change in ISSF scores with the change in hematological parameters of 52 patients with follow-up hematological indices after six months. The patients with severe-moderate group had higher CRP levels (p < 0.001), white blood cell (p = 0.002) and neutrophil counts (p = 0.004) and, conversely, lower MCHC levels (p = 0.001) than patients with mild disease severity. FMF patients with amyloidosis had higher neutrophil (p = 0.04) and monocyte count (p = 0.02), increased NLR (p = 0.01) and lower MLR (p = 0.02) levels than those without. In addition, MCHC levels were also lower in the severe-moderate group in the follow-up analyses after sixth months (p = 0.03). MCHC, neutrophil and monocyte counts, NLR, MLR may be associated with poor prognosis in FMF patients. These parameters can be used in conjunction with acute phase reactant and clinical features to assess disease status.

Kovid-19 Hastalarında NLR, D-Dimer ve MPV Değerleri Mortaliteyi ve Klinik Ciddiyeti Öngörebilir Mi?

Objective: In this study, we aim to determine the relationship between neutrophil/lymphocyte ratio (NLR), D-dimer, and mean platelet volume (MPV) parameters with mortality and clinical severity in Covid-19 patients. Materials and Methods: This retrospectively planned study included Covid-19 patients admitted to the emergency department between March 2020 and September 2020. Sociodemographic characteristics, laboratory parameters, and imaging results of the patients were obtained. The patients were grouped according to the development of mortality and clinical follow-up. Results: Seven hundred patients were included in the study and the mean age of the patients was 49.1±18.2 years. Mortality developed in 5.4% (n=38) of the patients. NLR, D-dimer, and MPV levels of patients who developed mortality were higher than those who survived (p&amp;lt;0.001; p &amp;lt;0.001 and p=0.035, respectively). In ROC analysis, &amp;gt;6 NLR levels, &amp;gt;8.45 MPV levels, and &amp;gt;0.57 D-dimer levels were found to be predictive for mortality (p&amp;lt;0.001; p=0.019; p &amp;lt;0.001, respectively). Conclusions: The high NLR, D-dimer, and MPV levels obtained at the time of admission in Covid-19 patients can be used as an indicator of mortality. Elevated NLR and D-dimer levels are useful in determining the severity of the disease and clinical follow-up.

Neutrophil to Lymphocyte Ratio as a Denotative of Type II Diabetes Mellitus

Introduction: The neutrophil-lymphocyte ratio (NLR) is an economically accessible tool useful in cases of Type II Diabetes Mellitus (T2DM). It can be utilized as a laboratory index, indicating systemic inflammation. The sensitivity of NLR to HbA1c must be validated to utilize for its prognostic potential. Correlation of HbA1c with NLR and other parameters have been analyzed to assess the utility of NLR in chronic cases of T2DM, thereby evaluating the utility of NLR as a marker of systemic inflammation in diabetes. Place and Duration of study: Department of Pathology, Saveetha Medical College, Chennai, One year. Objectives: 1. To compare levels of NLR and other parameters in diabetics with those of healthy people and observe the nature of correlation between HbA1c and other parameters.2. To find the linear relationship between HbA1c and other parameters in the diabetic population. Material and methods: An observational study conducted at our Institute from January to October 2020. Blood profiles of 240 T2DM patients and 100 healthy controls were recorded. Results: The NLR (5.35) of T2DM group was significantly elevated (p 0.001) compared to NLR of control group (2.16). Urea and creatinine levels had positive regression coefficients with HbA1c indicating susceptibility of diabetic patients to diabetic nephropathy. Conclusion: NLR showed significance in T2DM. Increased NLR is associated with elevated HbA1c and poor glycemic control in patients with T2DM. It can be used as a prognostic tool during the follow up of diabetic patients.