scholarly journals Diagnostic value of standard and alternative markers in blood serum of newborns with early neonatal sepsis

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Angelina Kalmykova ◽  
Alexandr Obedin ◽  
Aleksandr Vasilyev ◽  
Volkov Evgeny
Author(s):  
M.M. Kiselyova ◽  
◽  
O.V. Potsiurko ◽  
A.V. Komar ◽  
N.V. Kamut ◽  
...  

Neonatal sepsis is a significant cause of mortality among newborns, especially in low and middle income countries with poor economic development. It is important to start the appropriate treatment as soon as possible, as this prevents most deaths from sepsis and reduces the occurrence of residual neurological lesions due to septic meningitis. The article provides an overview of modern literature data on the principles of diagnosis of early neonatal sepsis; mentions the main etiological factors and ways of infection by potential pathogens. Diagnostic criteria for early neonatal sepsis have been analyzed and have been classified as doubt-ful or credible. An important role is given to the assessment of potential risk factors for the development of the septic process, including data on history of pregnancy and childbirth, clinical and laboratory indicators of the baby after birth. The nonspecificity of most clinical signs of sepsis and their comparison with clinical manifestations in meningitis was carried out. The importance of the bacteriological method of detecting the pathogen in the blood, urine and cerebrospinal fluid was analyzed, which remains the «gold» standard diagnosis of neonatal sepsis, and the method of multiplex polymerase chain reaction. There is a need to detect sepsis through visual examination, such as chest radiography, computed tomography, magnetic resonance imaging and ltrasonography of the head. The diagnostic value of indicators is described with the complete blood cell count and differential, including some of its components, and markers of inflammatory process, especially the immature-to-total (I/T) neutrophil ratio, C-reactive protein, procalcitonin. The article mentions a method of determining the concentration of immunoglobulin M in the serum, the elevated level of which indicates intrauterine infection. The diagnostic value of glutathione is considered, which is a marker of the functioning of the immune system. Emphasis is placed on the expediency of using Kaiser Permanente calculator to detect signs of sepsis in the first days of a newborn's life and the choice of optimal tactics management in such patients. No conflict of interest was declared by the authors. Key words: sepsis, newborn, diagnosis of infection, neonatal.


Author(s):  
Meng Li ◽  
Xiaoyang Huang ◽  
Qingcui Zhuo ◽  
Jinghui Zhang ◽  
Xiuli Ju

Neonatal sepsis (NS) occurs in neonates within 28 days, especially preterm infants. The dysregulation of miRNAs is widely detected in NS. The study investigated the expression changes and clinical significance of miR-129-5p in NS patients and further explored the regulatory role of miR-129-5p in the LPS-induced inflammatory response in monocytes. A total of 75 neonates with NS and 84 neonates without NS were recruited. qRT-PCR was used for the measurement of miR-129-5p expression. The receiver operating characteristic (ROC) curve was constructed for diagnostic value analysis. ELISA was used to detect the concentration of inflammatory cytokines. Monocytes were isolated from the blood of neonates to investigate the role of miR-129-5p in the LPS-induced inflammatory response in vitro. miR-129-5p was low expressed in the serum of NS cases compared with controls. Serum miR-129-5p had a diagnostic value for NS with a sensitivity of 82.7% and specificity of 79.8%. There was close association for serum miR-129-5p with TNF-α (r = -0.652, p < 0.001) and IL-8 (r = -0.700, p < 0.001) levels in NS patients. Overexpression of miR-129-5p reversed the increasing trend of TNF-α and IL-8 induced by LPS, whereas miR-129-5p downregulation aggravated the increase of TNF-α and IL-8 induced by LPS in monocytes. MiR-129-5p was downregulated in the serum of NS patients, and it might be a promising biomarker for disease diagnosis. Overexpression of miR-129-5p alleviated the inflammatory response of NS.


2021 ◽  
Author(s):  
Chuchu Gao ◽  
Zongtai Feng ◽  
Lixia Wang ◽  
Xingxing Zhao ◽  
Kai Fu ◽  
...  

Abstract Background: Neonatal sepsis is a systemic inflammatory response syndrome in neonates. The molecular mechanism of neonatal sepsis remains incompletely clarified. The purpose of this study was to explore the potential value of receptor interacting protein 3 (RIP3) in neonatal sepsis.Methods: 93 neonates with sepsis and 93 neonates without infectious diseases were enrolled in this study from September 2019 to March 2021. Plasma RIP3 was detected by enzyme-linked immunosorbent assay (ELISA) and assessed along with whole blood hypersensitive C-reactive protein (hs-CRP) and platelet count (PLT). Differences of RIP3, hs-CRP and PLT between the two groups were compared. Changes of the three indicators in sepsis were also observed after treatment. The diagnostic value of indicators for neonatal sepsis was evaluated by receiver operating characteristic (ROC) curve.Results: In sepsis group, RIP3 and hs-CRP levels were significantly higher than those in control group (RIP3, p < 0.0001; hs-CRP, p < 0.0001), and PLT level was significantly lower than that in control group (p<0.0001). After treatment, RIP3 and hs-CRP levels among septic survivors had a significant decrease (p<0.0001) and PLT level had a significant improvement (p=0.0028). With RIP3>15464.72 pg/mL, CRP>3.24 mg/L, PLT<205.00×109 /L as the positive criteria, the sensitivity of the three indicators in the diagnosis of neonatal sepsis was 68.8%, 64.5%, 59.1%, and the specificity was 91.4%, 82.8%, 79.6%, respectively. The combination of RIP3, CRP and PLT showed 76.3% sensitivity and 94.6% sensitivity.Conclusions: RIP3 may attribute to the early diagnosis and understanding therapeutic effect of neonatal sepsis. The combined detection of RIP3, CRP and PLT may be more effective than individual ones in the diagnosis of neonatal sepsis.


2009 ◽  
Vol 133 (8) ◽  
pp. 1291-1296 ◽  
Author(s):  
Maysaa El Sayed Zaki ◽  
Hesham El Sayed

Abstract Context.—Early diagnosis of neonatal sepsis is mandatory. Various markers are used to diagnose the condition. Objective.—To evaluate the diagnostic value of various clinical data and hematologic parameters, such as total leukocyte count, absolute neutrophil count, immature to total neutrophil ratio, and soluble E-selectin (sE-selectin) in identification and outcome of neonatal sepsis. Design.—Newborn infants with a clinical diagnosis of sepsis in the neonatal intensive care unit at Mansoura University Children's Hospital during the period between July 2007 and December 2007 were eligible for study. In addition, 30 healthy neonates were included in the study. Complete hematologic and microbiologic laboratory investigations were performed, and serum E-selectin was measured. Results.—Plasma sE-selectin levels were significantly higher (P &lt; .001) in infected infants (mean [SD], 156.9 [77.0] ng/mL) than in noninfected (mean [SD], 88.8 [47.1] ng/mL) and healthy infants (mean [SD], 8.67 [3.74] ng/ mL). Infants with gram-negative sepsis had higher sE-selectin levels than did those with gram-positive sepsis (P = .04). C-reactive protein was the best laboratory test for diagnosis of neonatal sepsis, with an overall sensitivity and specificity of 86% and 97%, respectively. Performing sE-selectin with C-reactive protein or immature to total ratio tests increased the specificity, but reduced the sensitivity, of the tests for the determination of neonatal sepsis. Plasma sE-selectin levels were higher in nonsurvivors than in survivors (P = .01) and were higher in those with hemodynamic dysfunction than in those without hemodynamic dysfunction (P &lt; .001). Conclusions.—We conclude that plasma sE-selectin levels are elevated in neonatal sepsis. Significant elevation was associated with gram-negative sepsis. Plasma sE-selectin had low diagnostic value when used alone or in combination with other tests; however, it can be used as a prognostic indicator for the outcome of neonatal sepsis.


2015 ◽  
Vol 4 (2) ◽  
pp. 149
Author(s):  
PankajKumar Mohanty ◽  
Gurudip Das ◽  
ShasankaShekhar Panda ◽  
MrinalS Pillai

Author(s):  
R. Rohsiswatmo ◽  
M. Azharry ◽  
T.T. Sari ◽  
Y. Bahasoan ◽  
D. Wulandari

BACKGROUND: Late-onset neonatal sepsis (LONS) detection is problematic as no single examinations (blood culture, c-reactive protein (CRP), procalcitonin (PCT)) are reliable. Toll-like receptors (TLRs), which detect the presence of pathogen-associated molecular patterns is a promising novel biomarker, but less studied in LONS. This study aimed to determine neutrophils and monocytes TLR2 and TLR4 expression in LONS and their diagnostic value. METHODS: A cross-sectional study conducted in May and June 2017 involving 52 neonates with clinical late-onset (>72 hours of age) sepsis. We examine complete blood count, I/T ratio, CRP, PCT, as well as TLR2 and TLR4 expression to compared with blood culture as the gold standard. We classified cases into proven or unproven sepsis. RESULT: The incidence of LONS was 32.6% in the subjects. The expression of TLR2 was low in LONS, while TLR4 was high. TLR4 neutrophil expression has 88.2% sensitivity, 20% specificity, 34.9% positive predictive value (PPV), 77.8% negative predictive value (NPV), and an AUC of 0.541. TLR4 monocyte expression has 92.1% sensitivity, 11.4% specificity, 34% PPV, 80% NPV, and an AUC of 0.528. The AUC of CRP is increased from 0.608 to 0.843 after combination with TLR4, comparable with CRP + PCT (AUC 0.829). CONCLUSION: The increase in TLR4 expression has good sensitivity but low specificity. TLR4 expression, in combination with CRP, could become a reliable biomarker for the diagnosis of LONS.


2019 ◽  
Vol 37 (8) ◽  
pp. 1571-1576
Author(s):  
Yan Song ◽  
Yuanchun Chen ◽  
Xue Dong ◽  
Xiaohua Jiang

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