Component 1 Inhibitor Missense (Val480Met) Variant Is Associated With Gene Expression and Sepsis Development in Neonatal Lung Disease.

Background: Neonatal lung disease has a multifaceted etiopathology, including an explosive inflammatory sequence in the immature lung. Complement component 1 Esterase INHibitor (C1INH) is implicated in controlling inflammation in response to infection/injury. Aim: To explore for the first time the association of the C1INH rs4926 (Val480Met) variant and circulatory transcript expression levels in the neonates that had evidence of lung disease and the clinic-laboratory data. Methods: A total of 139 unrelated neonates were enrolled in this case-control study. C1INH genotyping and expression analyses were done using TaqMan Genotyping and Real-Time qPCR, respectively. Results: A/A genotype carriers were two times more likely to develop in newborns with lung disease under homozygote (A/A vs. G/G: OR = 2.66, 95%CI = 1.03-6.87, p = 0.039) and recessive (A/A vs. G/G-A/G: OR = 2.42, 95%CI = 1.07-6.06, p = 0.047) models. Also, a higher frequency of A/A genotype was observed in the patient's cohort complicated with sepsis (44.2 vs. 14.3%, p = 0.002). Neonates with lung disease with A variant had more risk for developing sepsis under homozygote (A/A vs. G/G: OR = 5.19, 95%CI = 1.73-15.6, p = 0.002), dominant (A/G-A/A vs. G/G: OR = 2.39, 95%CI = 1.02-5.58, p = 0.041), and recessive (A/A vs. G/G-A/G: OR = 5.38, 95%CI = 1.86-15.5, p < 0.001) models. Regression analysis revealed rs4926*A/A genotype as an independent predictor risk factor for sepsis development in cohorts with lung disease (adjusted OR = 4.26, 95%CI = 1.38-13.1, p = 0.012). The circulatory transcript was significantly downregulated in neonates with lung disease in whom rs4926*A/A carriers had the least expression levels (median: -2.86, IQR: -3.55 to -1.71; p < 0.001). ROC curve analysis revealed C1INH expression could differentiate between cohorts with/without subsequent development of sepsis, and the discrimination ability was enhanced when combined with circulatory IL-6 and CRP levels (AUC = 0.926, 95%CI = 0.87-0.97). Conclusion: The C1INH rs4926 variant might play an essential role in the susceptibility to neonatal lung disease and could predict sepsis development in this cohort. Furthermore, the circulatory expression levels of this gene were downregulated in the neonatal lung disease cohort, supporting its potential role in the pathophysiology of this disorder, and highlighting its promising role in future targeted therapy.

Brain-derived neurotrophic factor in relation to central obesity in children with sleep disordered breathing.

INTRODUCTION: Sleep disordered breathing (SDB) represents common comorbidities of childhood obesity leading to interrupted sleep and sleep deprivation. Sleep deprivation alters secretion of brain-derived neurotrophic factor (BDNF), which is an appetite regulator. However, little is known about the relation between BDNF and central obesity in children with SDB. The aim of the study was to evaluate BDNF level and anthropometric indices in relation to SDB in children with obesity. MATERIAL AND METHODS: A prospective case-control study was conducted on 30 children with obesity (BMI > 95th percentile) and 30 healthy lean children (BMI 5th-85th percentile). Polysomnographic, anthropometric data and BDNF serum level were obtained from all included children. Serum level of BDNF and anthropometric indices of obesity were assessed in relation to SDB in children with obesity. Regression analysis was done to determine predictors for SDB in children with obesity. RESULTS: In comparison to healthy controls, anthropometric indices of central obesity were significantly higher while BDNF was significantly lower in obese children, especially those with SDB. Respiratory disturbance index has a significant positive correlation with anthropometric indices of central obesity and a significant negative correlation with BDNF level. Central obesity and decreased BDNF were associated with 2-fold increased risk for SDB. Waist circumference/height ratio and neck circumference/height ratio have 89.5%, 75% sensitivity and 81.23%, 84.62% specificity at a cutoff point > 0.62, > 0.24 respectively for prediction of SDB in children with obesity. CONCLUSIONS: Central obesity and decreased BDNF represent independent predictors for SDB in children with obesity. Anthropometric indices adjusted to height are a simple screening tool for SDB in obese children.

Relation of Asthma Control with Quality of Life among a Sample of Egyptian Asthmatic School Children.

BACKGROUND: Asthma is considered a chronic health illness that not only resulted in physical symptoms but also emotional effects. It is; therefore, so important to assess the quality of life of asthmatic patients besides their level of disease control. AIM: To determine the correlation of asthma control with the health-related quality of life (HRQOL) of asthmatic children in Egypt. METHODS: One hundred and twenty-eight asthmatic Egyptian children were enrolled in the study. They were subjected to asthma severity grading, asthma control questionnaire (ACQ) and pediatric asthma quality of life questionnaire (PAQLQ). Studied cases were taken from 6 primary and preparatory schools, Giza governorate. RESULTS: The mean child control score was significantly higher in not well-controlled asthmatics compared to well-controlled asthmatics (p < 0.005). The not well controlled asthmatic children showed significantly lower activity limitation score, symptoms score, and overall asthmatic score compared to controlled asthmatic children (p < 0.05). The severity of asthma shows significant positive correlation with symptoms score, emotional function score and overall asthmatic score (p < 0.05). CONCLUSION: The quality of life for the asthmatic children is strongly correlated with the level of asthma control and severity.

Effectiveness of a Training Course on Accuracy of Triaging of Pediatric Patients.

BACKGROUND: In the context of a new but busy Pediatric Emergency Department, the risk of missing patients who need more emergent care can be reduced by timely and accurate triaging. In the emergency department of King Fahad Armed Forces Hospital, the Canadian Triage and Acuity Scale had already been implemented, including the pediatric version (PaedCTAS). However, a common observation remained that critical patients did not always receive priority with subsequent delays in management. To improve this accuracy, a training course was administered to health care professionals responsible for triaging of pediatric patients. AIM: To determine the effectiveness of a training course on accuracy of triaging of Pediatric Patients. METHODS: A triage training course was conducted over two months, with patient encounter sheets reviewed before the course for 6 months and after the course for 12 months. Accuracy was calculated by comparing it to level as determined by two pediatric emergency physicians. Also, admission rates were used as a surrogate marker to also determine accuracy. RESULTS: A total of 31 053 patient sheets were reviewed. There was a considerable improvement in the correct determination of all triage levels, with accuracy ranging from 56.5% to 78.3% before the course, and reaching from 79.1% to 90.8% after the course with a statistically significant difference. Triaging errors still present were mainly in the form of down-triage. CONCLUSION: Our training course in triage has a significant impact on the accuracy of triaging of ill pediatric patients. Further improvement can be obtained by repeated courses and direct feedback with debriefing sessions on challenges to triage level determination.