Inflammation biomarkers in blood as mortality predictors in community-acquired pneumonia admitted patients: Importance of comparison with neutrophil count percentage or neutrophil-lymphocyte ratio

Abstract Background and Objectives Limited studies suggested that calprotectin may take part in the pathophysiology of community-acquired pneumonia (CAP). Nevertheless, there is no clinical study to analyze the role of S100A8 in CAP patients. The objective of this study was to analyze the association of serum S100A8 with the severity of CAP based on a cross-sectional study. Methods Entire 200 CAP patients and 100 normal subjects were recruited. Demographic data, clinical information and serum were collected on admission. Serum S100A8 and inflammatory cytokines were detected. Results Serum S100A8 was increased in CAP patients on admission. Serum S100A8 was gradually increased in parallel with the CAP severity scores. Serum S100A8 was positively correlated with CAP severity scores (CURB-65, CRB-65, PSI, CURXO and SMART-COP), blood routine parameters (WBC, neutrophil-lymphocyte ratio and monocyte-lymphocyte ratio) and inflammatory cytokines (TNFα, IL-1β and CRP). Furtherly, univariate and multivariate logistical regression analysis revealed that there was a positive association between serum S100A8 with CRB-65, PSI and CURXO. Moreover, the predictive capacity of serum S100A8 was performed by receiver operating characteristic area under the curve (AUC) analysis. The AUCs of S100A8 for CAP and CAP severity were 0.855 and 0.893, respectively. Mechanistic analysis found that S100A8 knockdown alleviated streptococcus pneumoniae-evoked inflammatory cytokines in A549 cells. Conclusion Serum S100A8 on admission was positively associated with the severity of CAP. S100A8 knockdown alleviates streptococcus pneumoniae- evoked inflammatory cytokines in A549 cells, indicating that S100A8 may exert an important role in the pathophysiology of CAP and be an early serum diagnostic biomarker for CAP.

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The neutrophil count is superior to the neutrophil/lymphocyte ratio as a biomarker of inflammation in nascent metabolic syndrome

Annals of Clinical Biochemistry International Journal of Laboratory Medicine ◽

10.1177/0004563219866221 ◽

2019 ◽

Vol 56 (6) ◽

pp. 715-716 ◽

Cited By ~ 1

Author(s):

Beverley Adams-Huet ◽

Ishwarlal Jialal

Keyword(s):

Metabolic Syndrome ◽

Neutrophil Count ◽

Neutrophil Lymphocyte Ratio ◽

Lymphocyte Ratio

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Value of Neutrophil to Lymphocyte Ratio in Prognosis of Elderly Patients with Community Acquired Pneumonia Compared to CRP Level

QJM ◽

10.1093/qjmed/hcab087.001 ◽

2021 ◽

Vol 114 (Supplement_1) ◽

Author(s):

Gehan M Elassal ◽

Mohamed A Elsayed ◽

Amal M Shehata

Keyword(s):

Elderly Patients ◽

Severe Infection ◽

Community Acquired Pneumonia ◽

Health Care Facilities ◽

University Hospitals ◽

Additional Advantage ◽

Neutrophil Lymphocyte Ratio ◽

Lymphocyte Ratio ◽

Hospitalization Period ◽

Significant Difference

Abstract Background Community-acquired pneumonia (CAP) is a common, potentially fatal disease despite advances in both diagnosis and treatment. Community-acquired pneumonia is the most common type of pneumonia. It occurs outside of hospitals or other health care facilities. Community acquired pneumonia (CAP) is a frequent and severe infection associated with a high mortality. Objectives This work aims to evaluate the role of neutrophil/lymphocyte ratio in prognosis of elderly patients with community acquired pneumonia compared to CRP level. Patients and Methods This prospective study was conducted upon 30 elderly patients in chest department at Ain shams University hospitals with community acquired pneumonia. All patients were diagnosed as having CAP by presence of new infiltrates in chest radiography associated with clinical picture. Clinical examination, traditional tests such as Confusion, Urea, Respiratory rate, Blood pressure, aged 65 and older (CURB-65), CRP level and NLR were evaluated at admission and after two weeks of admission. The predictive value for 30-day mortality of traditional tests and NLR were compared. Results The present study found that mean age of the studied cases was 72.9 ± 5.14 years old, 20 (66.7%) of patients were males while 10 (33.3%) were females. All patients had co-morbidities with diabetes mellitus and renal impairment the most common by percentage of 36.7%. There was highly significant correlation between neutrophil/lymphocyte count ratio (NLCR), neutrophil count and lymphocytic count and the outcome of CAP patients (p = 0.000, 0.004, 0.000 respectively) compared to other inflammatory biomarkers like WBC count (p = 0.02) and CRP (p = 0.521) and CURB-65 score (p = 0.074). This study showed that no deaths occurred in patients with NLR below 10, mortality was 8.3% in patients with NLR between 10 and 20 and 91.7% in patients with a NLR above 20. NLCR remain high with no significant difference in follow up labs among patients who died. Conclusion NLR showed emerging prognostic value in predicting outcome and 30day mortality rate in community acquired pneumonia. Unlike many other inflammatory markers and bioassays, NLR is an inexpensive, easy to handle, cost effective and readily available marker that is obtained from basic blood count providing an additional advantage in predicting hospitalization period and mortality.

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Comparison of clinical utility between neutrophil count and neutrophil–lymphocyte ratio in patients with ovarian cancer: a single institutional experience and a literature review

International Journal of Clinical Oncology ◽

10.1007/s10147-017-1180-4 ◽

2017 ◽

Vol 23 (1) ◽

pp. 104-113 ◽

Cited By ~ 13

Author(s):

Naoko Komura ◽

Seiji Mabuchi ◽

Eriko Yokoi ◽

Katsumi Kozasa ◽

Hiromasa Kuroda ◽

...

Keyword(s):

Ovarian Cancer ◽

Literature Review ◽

Neutrophil Count ◽

Clinical Utility ◽

Neutrophil Lymphocyte Ratio ◽

Lymphocyte Ratio ◽

Institutional Experience

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Assessment of neutrophil and neutrophil/lymphocyte ratio in coronary collateral developed patients with acute coronary syndrome

Revista da Associação Médica Brasileira ◽

10.1590/1806-9282.66.7.954 ◽

2020 ◽

Vol 66 (7) ◽

pp. 954-959 ◽

Cited By ~ 1

Author(s):

Asli Kurtar Mansiroglu ◽

Isa Sincer ◽

Yilmaz Gunes

Keyword(s):

Myocardial Infarction ◽

Acute Coronary Syndrome ◽

Neutrophil Count ◽

St Elevation Myocardial Infarction ◽

Collateral Development ◽

Neutrophil Lymphocyte Ratio ◽

Lymphocyte Ratio ◽

Coronary Syndrome ◽

Coronary Collateral ◽

St Elevation

SUMMARY OBJECTIVE Inflammation-related markers provide diagnostic and prognostic information for coronary artery disease and acute coronary syndrome. We aimed to compare neutrophil count and neutrophil/lymphocyte ratio (NLR) in acute coronary syndrome patients with coronary collateral development in our study. METHODS A total of 426 patients (102 unstable angina pectoris (USAP), 223 non-ST-elevation myocardial infarction (non-STEMI), 103 ST-elevation myocardial infarction (STEMI) were compared regarding hemoglobin, platelet, lymphocyte, neutrophil count, and NLR. RESULTS Neutrophil count and NLR were significantly lower in USAP patients and higher in STEMI patients; 5.14± 1.79 vs. 7.21± 3.05 vs. 9.93±4.67 and 2.92±2.39 vs. 5.19±4.80 vs. 7.93±6.38, p <0.001. Other parameters, i.e., hemoglobin, platelet, and lymphocyte count, were not significantly different between the groups. CONCLUSIONS In our study, it was concluded that there may be a statistically significant difference in the number of neutrophil counts and NLR among the types of acute coronary syndromes with coronary collateral development.

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