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Gradel K, Thomsen R, Lundbye-Christensen S, Nielsen H, SchØnheyder H. Baseline C-reactive protein level as a predictor of mortality in bacteraemia patients: a population-based cohort study. Clin Microbiol Infect 2011; 17:627-32. [DOI: 10.1111/j.1469-0691.2010.03284.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Role of fibronectin-binding proteins A and B in in vitro cellular infections and in vivo septic infections by Staphylococcus aureus. Infect Immun 2011; 79:2215-23. [PMID: 21422173 DOI: 10.1128/iai.00133-11] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Fibronectin-binding protein A (FnBPA) and FnBPB are important adhesins for Staphylococcus aureus infection. We constructed fnbA and/or fnbB mutant strains from S. aureus SH1000, which possesses intact rsbU, and studied the role of these adhesins in in vitro and in vivo infections. In intravenous infection, all fnb mutants caused a remarkable reduction in the colonization rate in kidneys and the mortality rate of mice. fnbB mutant caused a more severe decrease in body weight than that caused by fnbA mutant. Serum levels of interleukin-6 and nuclear factor κB (NF-κB) activation in spleen cells were remarkably reduced in fnbA or fnbA fnbB mutant infections; however, there was no significant reduction in fnbB mutant infections. In in vitro cellular infection, FnBPA was shown to be indispensable for adhesion to and internalization by nonprofessional phagocytic cells upon ingestion by inflammatory macrophages and NF-κB activation. However, both FnBPs were required for efficient cellular responses. The results showed that FnBPA is more important for in vitro and in vivo infections; however, cooperation between FnBPA and FnBPB is indispensable for the induction of severe infection resulting in septic death.
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Role of Inflammatory Markers in the Diagnosis and Management of Infective Endocarditis. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2010. [DOI: 10.1097/ipc.0b013e3181aba67c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Pierrakos C, Vincent JL. Sepsis biomarkers: a review. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2010; 14:R15. [PMID: 20144219 PMCID: PMC2875530 DOI: 10.1186/cc8872] [Citation(s) in RCA: 842] [Impact Index Per Article: 60.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Revised: 12/28/2009] [Accepted: 02/09/2010] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Biomarkers can be useful for identifying or ruling out sepsis, identifying patients who may benefit from specific therapies or assessing the response to therapy. METHODS We used an electronic search of the PubMed database using the key words "sepsis" and "biomarker" to identify clinical and experimental studies which evaluated a biomarker in sepsis. RESULTS The search retrieved 3370 references covering 178 different biomarkers. CONCLUSIONS Many biomarkers have been evaluated for use in sepsis. Most of the biomarkers had been tested clinically, primarily as prognostic markers in sepsis; relatively few have been used for diagnosis. None has sufficient specificity or sensitivity to be routinely employed in clinical practice. PCT and CRP have been most widely used, but even these have limited ability to distinguish sepsis from other inflammatory conditions or to predict outcome.
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Affiliation(s)
- Charalampos Pierrakos
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, route de Lennik 808, 1070 Brussels, Belgium.
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Cheval C, Timsit JF, Garrouste-Orgeas M, Assicot M, De Jonghe B, Misset B, Bohuon C, Carlet J. Procalcitonin (PCT) is useful in predicting the bacterial origin of an acute circulatory failure in critically ill patients. Intensive Care Med 2009; 26 Suppl 2:S153-8. [PMID: 18470711 DOI: 10.1007/bf02900729] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVE To evaluate the accuracy of procalcitonin (PCT) in predicting bacterial infection in ICU medical and surgical patients. SETTING A 10-bed medical surgical unit. DESIGN PCT, C-reactive protein (CRP), interleukin 6 (IL-6) dosages were sampled in four groups of patients: septic shock patients (SS group), shock without infection (NSS group), patients with systemic inflammatory response syndrome related to a proven bacterial infection (infect. group) and ICU patients without shock and without bacterial infection (control group). RESULTS Sixty patients were studied (SS group:n=16, NSS group,n=18, infect. group,n=16, control group,n=10). The PCT level was higher in patients with proven bacterial infection (72+/-153 ng/ml vs 2.9+/-10 ng/ml,p=0.0003). In patients with shock, PCT was higher when bacterial infection was diagnosed (89 ng/ml+/-154 vs 4.6 ng/ml+/-12,p=0.0004). Moreover, PCT was correlated with severity (SAPS:p=0.00005, appearance of shock:p=0.0006) and outcome (dead: 71.3 g/ml, alive: 24.0 g/ml,p=0.006). CRP was correlated with bacterial infection (p<10(-5)) but neither with SAPS nor with day 28 mortality. IL-6 was correlated with neither infection nor day 28 mortality but was correlated with SAPS. Temperature and white blood cell count were unable to distinguish shocked patients with or without infection. Finally, when CRP and PCT levels were introduced simultaneously in a stepwise logistic regression model, PCT remained the unique marker of infection in patients with shock (PCT> or =5 ng/ml, OR: 6.2, 95% CI: 1.1-37,p=0.04). CONCLUSION The increase of PCT is related to the appearance and severity of bacterial infection in ICU patients. Thus, PCT might be an interesting parameter for the diagnosis of bacterial infections in ICU patients.
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Affiliation(s)
- C Cheval
- Service de Réanimation Polyvalente, Hôpital Saint Joseph, 185 rue Raymond Losserand, F-75014 Paris, France
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Cheng JB, Wang JQ, Bu DP, Liu GL, Iaschi SPA, Zhang CG, Wei HY, Zhou LY, Wang JZ, Tay KG. The effect of implanting an antigen release device on lactoferrin concentration in serum and milk. J Vet Med Sci 2008; 70:819-24. [PMID: 18772557 DOI: 10.1292/jvms.70.819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The objective of this study was to evaluate the effect of implanting an Antigen Release Devices (ARD) into dairy cows during the lactation cycle to induce an immune response. Subsequently, the concentrations of lactoferrin in serum and milk were measured. Forty healthy adult Chinese Holstein cows were divided into two equal groups: a test group and a control group. Animals in the test group received ARD implants, whereas the control group animals were not treated. An even spread across the two groups was maintained with animal selection based on parity, the lactation days and milk yields. The concentrations of lactoferrin in the serum and milk of all forty animals were measured using an Enzyme-Linked Immunosorbent Assay (ELISA). The results show that the implantation of an ARD did not significantly increase the concentration of lactoferrin in the serum and milk throughout the whole experiment period except on two occasions. The levels of lactoferrin in the milk and serum significantly increased on day 7 and on day 11 after implantation (p<0.05). There was a strong correlation between milk lactoferrin and serum lactoferrin (r=0.564, P<0.01). Three separate ARDs were used releasing its antigen load on day 0, 14 and 28 to induce a primary, secondary and tertiary response respectively. As the significant increases in the lactoferrin levels were only observed after the first ARD release, the effects of lactoferrin appears to be associated with the early phase of the immune response, consistent with its role in the host's innate defense system.
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Affiliation(s)
- J B Cheng
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Haidian, Beijing, People's Republic of China
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Peltola V, Mertsola J, Ruuskanen O. Comparison of total white blood cell count and serum C-reactive protein levels in confirmed bacterial and viral infections. J Pediatr 2006; 149:721-4. [PMID: 17095353 DOI: 10.1016/j.jpeds.2006.08.051] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2005] [Revised: 06/01/2006] [Accepted: 08/19/2006] [Indexed: 10/23/2022]
Abstract
We report the association of reaction in inflammatory markers with the microbiologic etiology of infection in children. Total white blood cell counts were increased in most pneumococcal and Escherichia coli infections, but in less than one-half of Staphylococcus aureus infections. Adenoviruses were the only viral agents that often increased total white blood cell counts or serum C-reactive protein levels.
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Affiliation(s)
- Ville Peltola
- Department of Pediatrics, Turku University Hospital, Turku, Finland.
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Simon L, Gauvin F, Amre DK, Saint-Louis P, Lacroix J. Serum procalcitonin and C-reactive protein levels as markers of bacterial infection: a systematic review and meta-analysis. Clin Infect Dis 2004; 39:206-17. [PMID: 15307030 DOI: 10.1086/421997] [Citation(s) in RCA: 1063] [Impact Index Per Article: 53.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2003] [Accepted: 03/12/2004] [Indexed: 12/11/2022] Open
Abstract
A meta-analysis was performed to evaluate the accuracy of determination of procalcitonin (PCT) and C-reactive protein (CRP) levels for the diagnosis of bacterial infection. The analysis included published studies that evaluated these markers for the diagnosis of bacterial infections in hospitalized patients. PCT level was more sensitive (88% [95% confidence interval [CI], 80%-93%] vs. 75% [95% CI, 62%-84%]) and more specific (81% [95% CI, 67%-90%] vs. 67% [95% CI, 56%-77%]) than CRP level for differentiating bacterial from noninfective causes of inflammation. The Q value for PCT markers was higher (0.82 vs. 0.73). The sensitivity for differentiating bacterial from viral infections was also higher for PCT markers (92% [95% CI, 86%-95%] vs. 86% [95% CI, 65%-95%]); the specificities were comparable (73% [95% CI, 42%-91%] vs. 70% [95% CI, 19%-96%]). The Q value was higher for PCT markers (0.89 vs. 0.83). PCT markers also had a higher positive likelihood ratio and lower negative likelihood ratio than did CRP markers in both groups. On the basis of this analysis, the diagnostic accuracy of PCT markers was higher than that of CRP markers among patients hospitalized for suspected bacterial infections.
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Affiliation(s)
- Liliana Simon
- Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06520-8064, USA.
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Alter P, Hoeschen J, Ritter M, Maisch B. Usefulness of cytokines interleukin-6 and interleukin-2R concentrations in diagnosing active infective endocarditis involving native valves. Am J Cardiol 2002; 89:1400-4. [PMID: 12062735 DOI: 10.1016/s0002-9149(02)02353-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The most important diagnostic value in infective endocarditis (IE) is isolation of the causative microorganism. Because premature antibiotic treatment is commonly administered before the assessment of blood cultures, the percentages of isolated microorganisms has decreased significantly within the last decades. Therefore, additional criteria for the diagnosis of IE may be helpful. It was hypothesized that assessment of interleukin-6 (IL-6) and interleukin-2R (IL-2R) may provide new diagnostic criteria for inflammation in IE. IL-6 and IL-2R serum concentrations, white blood cell count (WBC), and C-reactive protein (CRP) were measured in the blood of 47 patients with IE at the time of diagnosis and during treatment. WBC and CRP were elevated in patients with IE at the time of diagnosis. Both parameters were higher (p <0.05) in patients with positive blood cultures when compared with negative cultures. The differences persisted during the first week of treatment (p <0.01). In contrast, IL-6 and IL-2R concentrations were elevated (p <0.001) independently of the status of blood cultures. Serum concentrations of IL-6 and IL-2R decreased continuously during antibiotic treatment. Assessment of IL-6 and IL-2R could thus provide new diagnostic criteria for inflammation in IE, and these interleukins could also be suitable for monitoring the course of inflammation during treatment.
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Affiliation(s)
- Peter Alter
- Department of Internal Medicine-Cardiology, Philipps University of Marburg, Marburg, Germany.
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Thomas NJ, Carcillo JA, Doughty LA, Sasser H, Heine RP. Plasma concentrations of defensins and lactoferrin in children with severe sepsis. Pediatr Infect Dis J 2002; 21:34-8. [PMID: 11791096 DOI: 10.1097/00006454-200201000-00008] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND We hypothesized that systemic release of endogenous leukocyte-derived polypeptide antimicrobial defensins (polymorphonuclear leukocyte-specific) and lactoferrin (polymorphonuclear leukocyte and epithelial cell derived) occurs in nonneutropenic children with severe sepsis. METHODS We performed a prospective cross-sectional and longitudinal study in a university children's hospital pediatric intensive care unit. Ninety-two consecutive children meeting criteria for sepsis and 14 critically ill children without sepsis (controls) were enrolled, and plasma defensins and lactoferrin concentrations were measured on Days 1 and 3 of sepsis. RESULTS Nonneutropenic sepsis patients (n = 71) had increased defensins and lactoferrin plasma concentrations compared with critically ill control patients [defensins, 450 ng/ml vs. 150 ng/ml; lactoferrin, 332 ng/ml vs. 176 ng/ml (median values); P < 0.05] and neutropenic sepsis patients [n = 21; defensins, 450 ng/ml vs. 50 ng/ml; lactoferrin, 332 ng/ml vs. 20 ng/ml (median values); P < 0.05]. Neutropenic sepsis patients had similar plasma defensin concentrations and a decrease in plasma lactoferrin concentrations compared with control patients (P < 0.05). Defensins and lactoferrin plasma concentrations correlated to total white blood cell and absolute neutrophil count (P < 0.05). There was no association between plasma defensin concentration and organ failure or outcome; however, increased plasma lactoferrin concentrations were observed with the development of organ failure (P < 0.05). CONCLUSION These data suggest that increased circulating defensins and lactoferrin release are dependent in part on neutrophil count and might play a role in host defense in children with severe sepsis.
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Affiliation(s)
- Neal J Thomas
- Department of Anesthesiology and Critical Care Medicine, University of Pittsburgh School of Medicine and Children's Hospital of Pittsburgh, Pittsburgh, PA 15213, USA
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Goldenberg RL, Andrews WW, Guerrant RL, Newman M, Mercer B, Iams J, Meis P, Moawad A, Das A, VanDorsten JP, Caritis SN, Thurnau G, Bottoms S, Miodovnik M, McNellis D, Roberts JM. The preterm prediction study: cervical lactoferrin concentration, other markers of lower genital tract infection, and preterm birth. National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network. Am J Obstet Gynecol 2000; 182:631-5. [PMID: 10739520 DOI: 10.1067/mob.2000.104211] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE This study was undertaken to determine the relationship among cervical lactoferrin concentration, other cervical markers potentially related to infection, and spontaneous preterm birth. STUDY DESIGN Cervical lactoferrin concentrations obtained at 22 to 24 weeks' gestation among 121 women who had a spontaneous preterm birth <35 weeks' gestation were compared with cervical lactoferrin concentrations among 121 women matched for race, parity, and center who were delivered at >/=37 weeks' gestation. Results were compared against levels of cervical interleukin 6, fetal fibronectin, and sialidase, against cervical length according to ultrasonography, and according to the bacterial vaginosis Gram stain score. RESULTS Cervical lactoferrin concentrations ranged from not measurable (19% of the concentrations were below the threshold for this assay) to a titer of >/=1:64. There was no significant difference in the overall distributions of lactoferrin concentrations between the case patients and control subjects (P =.18). Only when the highest titers of lactoferrin were considered were there more women in the spontaneous preterm birth group (6/121 vs 0/121; P =.03). According to Spearman correlation analyses the cervical lactoferrin concentrations were strongly related to interleukin 6 concentration (r =.51; P =.0001), sialidase activity (r =.38; P =.0001), and bacterial vaginosis (r =.38; P =.0001), were weakly related to fetal fibronectin (r =. 16; P =.01), and were not related to cervical length. With the 90th percentile (a dilution of 1:32) used as a cutoff to establish a dichotomous variable, lactoferrin concentration had the following odds ratios and 95% confidence intervals for associations with other potential markers of infection: bacterial vaginosis odds ratio, 4.8 (95% confidence interval, 2.2-10.3); interleukin 6 concentration odds ratio, 2.8 (95% confidence interval, 1.2-6.5); sialidase activity odds ratio, 5. 5 (95% confidence interval, 2.2-13.7); fetal fibronectin concentration odds ratio, 0.6 (95% confidence interval, 0.2-2.0); chlamydiosis odds ratio, 2.3 (95% confidence interval, 0.8-6.9); and short cervix odds ratio, 0.5 (95% confidence interval, 0.2-1.4). CONCLUSIONS Lactoferrin found in the cervix correlated well with other markers of lower genital tract infection. High lactoferrin levels were associated with spontaneous preterm birth but had a very low predictive sensitivity.
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Affiliation(s)
- R L Goldenberg
- The Departments of Obstetrics and Gynecology, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Söderquist B, Sundqvist KG, Vikerfors T. Adhesion molecules (E-selectin, intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1)) in sera from patients with Staphylococcus aureus bacteraemia with or without endocarditis. Clin Exp Immunol 1999; 118:408-11. [PMID: 10594559 PMCID: PMC1905434 DOI: 10.1046/j.1365-2249.1999.01081.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The aim of this prospective study was to evaluate if patients with endocarditis display a more extensive endothelial activation than those with bacteraemia but without endocarditis. Sixty-five patients with blood culture-verified Staphylococcus aureus bacteraemia were included and serum samples collected on admission were analysed by enzyme immunoassays. Elevated serum concentrations of adhesion molecules were found in most of the patients with S. aureus bacteraemia. Patients with endocarditis (n = 15) showed significantly higher serum E-selectin (median 156 ng/ml) and VCAM-1 (median 1745 ng/ml) concentrations compared with those with S. aureus bacteraemia but without endocarditis (80 ng/ml and 1172 ng/ml, respectively; P = 0.01 and P = 0.003). No significant difference was found between the groups concerning ICAM-1 (median 451 ng/ml versus 522 ng/ml). In addition, serum tumour necrosis factor-alpha (TNF-alpha) concentrations were significantly correlated (P < 0.002) to serum levels of E-selectin, ICAM-1 and VCAM-1.
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Affiliation(s)
- B Söderquist
- Department of Infectious Diseases, Orebro Medical Centre Hospital, Orebro, Sweden.
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Maffei FA, Heine RP, Whalen MJ, Mortimer LF, Carcillo JA. Levels of antimicrobial molecules defensin and lactoferrin are elevated in the cerebrospinal fluid of children with meningitis. Pediatrics 1999; 103:987-92. [PMID: 10224177 DOI: 10.1542/peds.103.5.987] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE To measure levels of defensins and lactoferrin in the cerebrospinal fluid (CSF) of children with meningitis. STUDY DESIGN. Prospective descriptive study involving children undergoing lumbar puncture during evaluation for meningitis. METHODS CSF concentrations of defensins and lactoferrin were determined using enzyme-linked immunosorbent assays on 19 children with bacterial meningitis, 31 children with aseptic meningitis, and 32 control children found to have normal CSF during evaluation for meningitis. Pertinent clinical and laboratory data were gathered on all children. RESULTS CSF concentrations of both defensins and lactoferrin were elevated markedly in children with bacterial and aseptic meningitis, compared with control children. No control subject had detectable levels of defensins in the CSF. Lactoferrin was undetectable in the CSF of 31 of 32 control subjects. Defensin and lactoferrin levels were significantly higher in the CSF of children with bacterial meningitis than in those with aseptic meningitis. Defensin levels in the CSF of children with bacterial meningitis ranged from 128 ng/mL to 99 430 ng/mL with a mean of 30 311 ng/mL (SD +/- 28 865) and a median of 23 042 ng/mL. Defensin levels in the CSF of children with aseptic meningitis ranged from 0 ng/mL to 1675 ng/mL with a mean of 227 ng/mL (SD +/- 433) and a median of 23 ng/mL. A significant correlation was found between defensin levels in the CSF and the total leukocyte count and the absolute neutrophil count in the CSF of children with bacterial meningitis. Lactoferrin levels in the CSF of children with bacterial meningitis ranged from 184 ng/mL to 31 412 ng/mL with a mean of 13 209 ng/mL (SD +/- 9644) and a median of 10 382 ng/mL. Lactoferrin levels in the CSF of children with aseptic meningitis ranged from 0 ng/mL to 2715 ng/mL with a mean of 1042 ng/mL (SD +/- 878) and a median of 852 ng/mL. No correlation was found between lactoferrin level in the CSF and the total leukocyte count or the absolute neutrophil count in the CSF of children with bacterial meningitis. In our study population, the sum total of CSF defensins and lactoferrin was found to be highly sensitive and specific in delineating bacterial from aseptic meningitis when compared with standard CSF studies. CONCLUSIONS Significant elevations of defensins and lactoferrin, indicative of endogenous local antimicrobial peptide and polypeptide release, are found in the CSF of children with meningitis. We speculate that elevations in these antimicrobial molecules may reflect the intensity of the host response. Defensins seem to parallel neutrophil activation more closely than lactoferrin. Cumulative levels of CSF defensins and lactoferrin clearly distinguished bacterial meningitis from aseptic meningitis and control patients. Further investigation is warranted to determine the usefulness of measuring defensins and lactoferrin as a diagnostic tool and therapeutic monitor in the evaluation of children with meningitis.
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Affiliation(s)
- F A Maffei
- Departments of Pediatric Emergency Medicine and Pediatric Critical Care Medicine, Strong Memorial Hospital, Rochester, New York, USA
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Johne B, Fagerhol MK, Lyberg T, Prydz H, Brandtzaeg P, Naess-Andresen CF, Dale I. Functional and clinical aspects of the myelomonocyte protein calprotectin. Mol Pathol 1997; 50:113-23. [PMID: 9292145 PMCID: PMC379605 DOI: 10.1136/mp.50.3.113] [Citation(s) in RCA: 249] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- B Johne
- Nycomed Pharma AS, Oslo, Norway.
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