Interleukin-6 Levels In Children Research Articles

Effect of Transumbilical Single-Port Laparoscopic-Assisted Duhamel Operation on Serum CRP and IL-6 Levels in Children with Hirschsprung's Disease.

Objective To explore the clinical intervention effect of transumbilical single-port laparoscopic-assisted Duhamel operation on children with Hirschsprung's disease (HD) and to analyze the effect of treatment on children with serum C-reactive protein (CRP) and interleukin-6 (IL-6) effects. Methods Retrospectively select 80 children with HD who underwent surgery in our hospital from May 2017 to May 2020 as the research subjects and they are classified as group A according to the difference of the children's surgical procedures (receiving transumbilical single-port laparoscopic-assisted Duhamel surgery, 40 cases) and group B (receiving conventional laparoscopic surgery, 40 cases), compare the perioperative period (operating time, intraoperative blood loss, surgical posthospitalization, and postoperative gastrointestinal function recovery time), early postoperative complications (perianal dermatitis, urinary retention, enterocolitis, and anastomotic leakage), and late postoperative complications (anastomotic stenosis, dirty stool, recurrence of constipation, and enterocolitis), compare the differences in the levels of CRP and IL-6 between the two groups of children before and after the operation, and conduct a 1-year follow-up of the two groups of children to compare the long-term defecation status. Results The surgical time of children in group A, postoperative hospitalization time, and postoperative gastrointestinal function recovery time were significantly shorter than those of group B, and the differences between groups were statistically significant (P < 0.05). A group of patients: the total incidence of postearly complications was 5.00% lower than 22.50% (P < 0.05) in group B (P < 0.05), and the total incidence of previous complications after group A of patients was 10.00% lower than 27.50% of group B (P < 0.05). The two groups of serum CRP and IL-6 in two groups were not statistically significant (P > 0.05), and the serum CRP and IL-6 levels of children in group A after surgery were 3 days. It is obviously lower than those in group B, and the differences between groups have statistical significance (P < 0.05). At 1 month after surgery, the average bowel movement time in group A is significantly lower than those of group B (P < 0.05); during the 1–12 months, the difference between the defecation frequency group of the group A and group B did not have statistically significance (P > 0.05). Conclusion Transumbilical single-port laparoscopic assistant Duhamel operation of HD has a good intervention effect, compared to traditional laparoscopic surgery, the operation time, postoperative hospitalization time, and postoperative gastrointestinal function recovery time, and also help to reduce postoperative near-long complications The incidence improves the stress reactions and long-term defecation functions in children.

Evaluation of Serum and Plasma Interleukin-6 Levels in Obstructive Sleep Apnea Syndrome: A Meta-Analysis and Meta-Regression.

Obstructive sleep apnea syndrome (OSAS) is considered a low-grade chronic inflammatory disease. Interleukin-6 (IL-6) is one of the most significant inflammatory markers and an excellent proxy for the inflammatory/immune system. The present meta-analysis and meta-regression aimed at comparing plasma and serum levels of IL-6 between individuals (children and adults) with OSAS and healthy controls. Four databases, PubMed/Medline, Scopus, Cochrane Library, and Web of Science, were comprehensively searched to retrieve articles published up to December, 2019, with no further restrictions. RevMan 5.3 software was used to calculate the crude mean difference (MD) and 95% confidence interval (CI). The results of funnel plots and meta-regression were analyzed by the CMA 2.0 software. Sixty-three studies (57 with adults; six with children) were included in the present meta-analysis. For adults, 37 studies reported significantly higher serum IL-6 levels and 20 reported significantly higher plasma IL-6 levels for those with OSAS than for healthy controls [pooled MD of 2.89 pg/ml (P < 0.00001) and pooled MD of 2.89 pg/ml (P < 0.00001), respectively]. The pooled analysis of serum and plasma IL-6 levels in children with OSAS compared with controls revealed that only the MD of plasma IL-6 levels was significant (MD = 0.84 pg/ml, P = 0.004). Results of the meta-regression showed that greater age was associated with higher serum IL-6 levels. Egger's test revealed a publication bias across the studies for serum and plasma IL-6 levels (P = 0.00044 and P = 0.01445, respectively). In summary, the meta-analysis and meta-regression confirmed that, compared to healthy controls, individuals with OSAS (children and adults) had higher serum/plasma IL-6 levels.

Interleukin-6 levels in children developing SARS-CoV-2 infection

Since the declaration of the coronavirus disease 2019 (COVID-19) pandemic status, the total number of cases developing severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection has reached 1,696,588 worldwide, with a mortality rate of 6.24%.1 Interestingly, reports have shown that, compared to adults, the pediatric populations have lower infection rates, less severe clinical presentation with lower likelihood of progression, and more favorable prognosis.2 However, the mechanism behind this phenomenon remains elusive.

Evaluation of liver-type fatty acid binding protein (L-FABP) and interleukin 6 in children with renal cysts.

Renal cysts, according to their etiology, can be divided into genetic and acquired cysts. This is of great importance in patients with cystic kidney disease with a possible poor prognosis to identify markers of early kidney damage. The objective of this study was to evaluate the concentration of serum and urine liver-type fatty acid binding protein (L-FABP) and interleukin 6 (IL-6) in children with kidney cysts. The study was conducted on a group of 39 children with kidney cysts including 20 subjects with autosomal dominant polycystic kidney disease (ADPKD). Serum and urine L-FABP concentration in children with renal cysts was significantly higher compared to the controls, regardless of the underlying type of cystic degeneration, number of cysts and gender. Also, serum and urinary IL-6 concentration was significantly higher than in the control group. There was a significant negative correlation between serum L-FABP concentration and standard deviation score (SDS) for diastolic blood pressure (DBP). A significant negative correlation was found between serum IL-6 concentration and systolic blood pressure (SBP), DBP and mean arterial pressure (MAP) values as well as SDS for SBP and DBP. In addition, a significant positive correlation was found between urinary IL-6 concentration and estimated glomerular filtration rate (eGFR). Higher concentration of L-FABP in serum and urine in children with kidney cysts indicates the early damage to the renal parenchyma, detectable before the onset of hypertension and other organ damage. Significantly higher serum and urinary IL-6 levels in children with cystic kidney disease compared to healthy children may suggest the role of this cytokine in chronic kidney disease development.

Difference of Vitamin D and Interleukin-6 Levels in Children with Steroid- Resistant, Steroid-Sensitive and Idiopathic Nephrotic Syndrome

Idiopathic nephrotic syndrome (INS) is the most prevalent autoimmune glomerular disease in children and its pathogenesis is correlated with high level of interleukin 6 (IL-6) and low level of vitamin D. This study was aimed to investigate the difference of vitamin D and IL-6 level in steroid resistant nephrotic syndrome (SRNS), steroid sensitive (SSNS), and idiopathic nephrotic syndrome (INS). This research was designed as cross sectional involving 45 subjects which then divided into 3 groups as follows: SRNS, SSNS, and INS. A level of serum 25 (OH)D was measured by Enzyme-linked Immuno Assay Method then categorized as sufficiency, insufficiency, and deficiency. Level of IL-6 serum was measured by ELISA method. Results showed that IL-6 level was significantly different among three groups, in which SRNS had the highest value (ANOVA, p < 0.05). Further analysis demonstrated that IL-6 level correlated with steroid resistance (Spearman correlation test, p = 0.000, r = 0.692). Vitamin D status was significantly different among three groups (Chi square, p = 0.03) and associated with steroid resistance (Spearman correlation test, p = 0.000, r = 0.568). Moreover, IL-6 level associated with 25 (OH) D level in SRNS group (Pearson correlation test, p = 0.020, r = 0.591) but not in the SSNS and INS group. We conclude that IL-6 levels were significantly higher in SRNS group as compared to other groups. Otherwise, vitamin D status were significantly lower in SRNS compared with other groups. An IL-6 level was negatively correlated with vitamin D status in patients with NS, specifically in SRNS group.

Serum Interleukin-6 Levels in Children with Febrile Seizures

To compare levels of Interleukin-6 (IL-6) in children with febrile seizures and febrile controls. Study conducted in a tertiary-care hospital in Northern India from November 2013 to April 2015, enrolling 160 children (80 each with febrile seizures and febrile controls), aged 6 - 60 months. Serum IL-6 estimated by ELISA method. Iron study done as per standard technique. All the cases of febrile seizure were followed up at 1 week, 3 months and 6 months for recurrence of seizures. The mean serum IL-6 levels in children with febrile seizures was 62.0 (63.9) pg/mL and febrile controls was 86.9 (70.6) pg/mL (P=0.025). Serum IL-6 levels were significantly lower in children with febrile seizures as compared to febrile controls.

Salivary interleukin-6 levels in children with early childhood caries and ventricular septal defect.

The efficacy of dental treatment on the levels of inflammatory markers in ventricular septal defect (VSD) has not been fully explored. The aim of this study was to assess the level of salivary interleukin-6 (IL-6) in children with early childhood caries (ECC) and VSD and to compare its levels before and after comprehensive full mouth rehabilitation. Saliva samples were collected from children with ECC and VSD before dental treatment and 1-month posttreatment. The salivary IL-6 levels were analyzed using the enzyme-linked immunosorbent assay method. Gingival index (GI) was also timely recorded during the study period. Oral health awareness sessions were conducted for children and their parents. The Fisher's Least Significant Difference test was used for intergroup comparison of salivary IL-6 levels, while the paired t-test compared the values of GI before and after treatment. The mean salivary IL-6 levels 1 month after treatment had reduced (P < 0.000). There was a reduction in GI score (P = 0.002). When children having VSD and ECC are dentally rehabilitated and followed up periodically, the level of IL-6 is minimized, hence improving the quality of life of the affected children.

Bacterial enteric pathogens and serum interleukin-6 levels in children with acute diarrhea

Background Acute diarrhea is currently one of the major causes of morbidity and mortality in developing countries. A wide range of enteric pathogens, including bacteria, is responsible for the pathogenesis of acute infectious diarrhea. Recent studies have shown an increase in acute phase proteins, such as serum interleukin-6 (IL-6) levels, in patients with acute bacterial gastroenteritis. Thus, IL-6 may be a useful marker to differentiate bacterial from non-bacterial enteric pathogens.Objective To assess for a correlation between bacterial enteric pathogens and serum IL-6 levels in children with acute diarrhea.Methods We conducted a cross-sectional study from November 2013 to March 2014 in two hospitals in Manado. Subjects were children aged 1-5 years with acute diarrhea and good nutritional status. Subjects’ provided stool samples for bacterial culture and microscopic examination, as well as blood specimens for serum IL-6 measurements. Data was analyzed by linear regression and Pearson’s correlation tests for a correlation between bacterial enteric pathogens and serum IL-6 levels.Results In children with acute diarrhea, those with bacterial enteric pathogens had significantly higher mean serum IL-6 than those with non-bacterial enteric pathogens (r = 0.938; P &lt; 0.001).Conclusion Serum IL-6 levels are significantly more elevated in children with acute diarrhea and bacterial enteric pathogens. Therefore, serum IL-6 may be a useful marker for early identification of bacterial gastroenteritis in children aged 1-5 years. [Paediatr Indones. 2016;56:144-8.].

Interleukin-6 and interleukin-8 levels in the urine of children with renal scarring

Acute pyelonephritis (APN) is one of the most significant bacterial infections in infancy and early childhood, and can lead to permanent kidney damage and chronic renal failure. To evaluate interleukin-6 (IL-6) and interleukin-8 (IL-8) levels in the urine of children with renal scarring (RS), searching for clinical information about the immuno-inflammatory process that contributes to RS. Urine concentrations of IL-6 and IL-8 were evaluated in 50 children, 33 with RS detected after an episode of acute pyelonephritis (group A) and 17 children with a history of acute pyelonephritis, but without RS (group B). These children were divided into four groups: group A(1), 23 children with RS and vesicoureteral reflux (VUR); group A(2), 10 children with RS without VUR; group B(1), 13 children without RS and without VUR; group B(2), 4 children without RS, but with VUR. None of them had had urinary tract infection for a minimum of 6 months. To avoid dilution effects, urinary levels of IL-6 and IL-8 were expressed as the ratio of cytokine to urinary creatinine (pg/mg). Urinary IL-8 levels were below the lower detection limit in all samples. IL-6 was detectable in the majority of children with RS and below the detection limits in the urine samples of children without RS. There were no statistically significant differences between urinary interleukin-6 levels in children with and those without VUR. There was a significant relationship between the grade of renal scars, the time passed since the last episode of acute pyelonephritis and the urinary levels of IL-6 (p < 0.0001 and p < 0.04 respectively). Further experimental studies are required to demonstrate the correlation between histopathology and urinary cytokine levels.

Cytokine modulation with immune gamma-globulin in peripheral blood of normal children and its implications in Kawasaki disease treatment.

Intravenous immune gamma-globulin (IVIG) is used successfully in the treatment of Kawasaki disease, with dose-dependent rapid resolution of symptoms such as fever and irritability and a decrease in ESR, WBCs, and platelets. The mode of action of IVIG in reducing this inflammatory response is not clearly understood. Recently anticytokine antibodies in IVIG have been demonstrated. Serum levels of proinflammatory cytokines have been shown to be elevated in patients with Kawasaki disease. The cytokine interleukin-6 (IL-6) is involved in the de novo production of acute-phase proteins by hepatocytes and cause thrombocytosis and fever in response to tissue injury. Patients receiving parenteral recombinant human IL-6 have dose-dependently experienced fever, malaise, chills, and acute-phase reaction. With high IL-6 concentrations, central nervous system toxicity has also been reported and IL-6 has been thought to mediate endothelial damage. We evaluated the response of stimulated blood cells of 12 normal children to IVIG in the release of the cytokines IL-6, IL-8, TNF-alpha. and IL-6 receptor (sIL-6R). The levels of cytokines IL-6, IL-8, and TNF-alpha (but not sIL-6R) in peripheral blood induced by stimulation with LPS were markedly reduced (P < 0.008) within 3 hr when incubated with IVIG compared to without IVIG. Thus we demonstrated that cells of normal children respond to IVIG in vitro by reducing cytokines such as IL-8, TNF-alpha, and IL-6 without affecting the level of receptor sIL-6R during an acute inflammatory response. We also found significantly higher IL-6 levels in children with Kawasaki disease compared to children with blood culture-negative febrile illnesses. In five children with Kawasaki disease we measured serum IL-6 before and after IVIG and assessed the clinical response to IVIG therapy. Therapy with IVIG was followed by a rapid resolution of symptoms in Kawasaki disease, with a significant decrease in serum IL-6. The attenuation of proinflammatory cytokine responses, especially IL-6, following infusions of IVIG may play an integral role in the rapid resolution of symptoms and decrease in the acute-phase proteins in children with Kawasaki disease. Cells of normal children were found to respond to the IVIG in a manner similar to that of the Kawasaki children.

Serum interleukin-6 in bacterial and nonbacterial acute otitis media.

Increasing prevalence of antibiotic-resistant bacteria is a serious clinical problem that calls for reduction of unnecessary use of antibiotics. Acute otitis media (AOM) is the most common reason for antibiotic therapy in the United States. Approximately 30% of AOM cases do not have a bacterial etiology. Rapid identification of these cases could help withhold unnecessary antibiotic treatment. To determine the usefulness of serum levels of interleukin-6 (IL-6), an acute phase cytokine shown to be a reliable marker of neonatal bacterial infection, in differentiation between bacterial and nonbacterial AOM in children. IL-6 was measured in stored serum samples from 184 children (mean age, 22 months) with AOM who were enrolled in antibiotic efficacy trials at our department. The samples were obtained at enrollment and at 9 to 12 days after initiation of antibiotic therapy. Sera from 21 uninfected children (mean age, 23 months) were used as controls. The etiology of AOM was determined by bacterial and viral cultures as well as respiratory syncytial virus antigen detection in the middle ear fluids obtained by tympanocentesis. Bacterial etiology of AOM was confirmed in 125 children (68%), whereas in 59 children (32%) no bacterial pathogen could be detected in the middle ear fluid. Children with bacterial AOM had significantly higher IL-6 levels than those with nonbacterial AOM (median, 11.5 vs 3.7 pg/mL). However, this difference was almost entirely attributable to pneumococcal AOM specifically. IL-6 levels in children with AOM caused by Streptococcus pneumoniae were significantly higher (median, 40.1 pg/mL) than in AOM caused by Haemophilus influenzae (7.3 pg/mL) or Moraxella catarrhalis (6.8 pg/mL). At the cutoff value of 30 pg/mL, the specificity of IL-6 for detection of pneumococcal AOM was 91% with a sensitivity of 61%, but its sensitivity for detection of bacterial AOM in general was only 27%. Low levels of IL-6 do not rule out bacterial etiology of AOM in general; therefore, IL-6 is not sensitive enough as a marker of bacterial AOM. Surprisingly, serum IL-6 levels in pneumococcal AOM were significantly higher than the levels associated with other bacterial AOM, and serum IL-6 levels of >30 pg/mL were highly specific for pneumococcal AOM. These findings suggest a distinctive role for S pneumoniae in the pathogenesis of AOM.

Association between fever and serum interleukin-6 levels in children with group a β-hemolytic streptococcal infection

1. 1|The serum levels of interleukin (IL)-1β, IL-6 and granulocyte colony-stimulating factor (G-CSF) were measured in children with Group A β-hemolytic streptococcal (GABHS) infection using sensitive immunoassays. 2. 2|Serum IL-6 levels were elevated in 21 27 patients during the phase of GABHS antigen-detection, significantly higher than in healthy control children ( P < 0.01). Levels of IL-1 were undetectable in all but one sample. 3. 3|The IL-6 level peaked on day 3 of the infection, then decreased. The IL-6 levels were significantly associated with the duration of fever ( P < 0.05) and the maximum body temperature (BT) ( P < 0.05), but not with the BT at time of blood sampling, C-reactive protein levels or leukocyte counts. 4. 4|Levels of G-CSF were slightly higher in the patients with infection than in the controls ( P < 0.05), but were not correlated with any other parameter including neutrophil counts. 5. 5|These cytokine levels neither reflected a differing T-serotype infection, nor did they vary among patients with regard to the presence of skin eruptions and the carrier state. 6. 6|These observations suggest that IL-6, but not IL-1, is produced during the acute phase of GABHS infection, accounting for the febrile condition as an inflammatory cytokine, despite the serotype of the infecting organism or the clinical types of infection.