Publications by authors named "Osama M El-Asheer"

11 Publications

  • Page 1 of 1

Clinical, Biochemical, Molecular, and Therapeutic Analysis of Maple Syrup Urine Disease in Upper Egypt.

J Pediatr Genet 2021 Jun 10;10(2):116-125. Epub 2020 Aug 10.

Department of Pediatrics, Faculty of Medicine, Assiut University, Assiut, Egypt.

Maple syrup urine disease (MSUD) is an autosomal recessive inherited metabolic disorder caused by mutations in any of the genes encoding for the branched-chain keto dehydrogenase (BCKDH) components. This study screened MSUD patients throughout the whole Upper Egypt describing their symptoms, clinical and laboratory findings, genetic studies, and their treatment, with a 6-month follow-up for their responses. Screening identified three children with MSUD. Homozygous mutation in R195Q single nucleotide polymorphism (SNP) within the BCKDHA gene was found with the second MSUD patient. Follow-up for 6 months to assess the treatment regimens and progression of cases demonstrated that early treatment regimens including a dietary restriction of branched-chain amino acids with L-Carnitine administration could prevent MSUD-associated intellectual disabilities. It was concluded that R195Q SNP is pathogenic, and it may cause inherited forms of MSUD in some patients. MSUD cases have rarely been reported; so these findings will be highly useful for future cases of MSUD in the Upper Egyptian population.
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http://dx.doi.org/10.1055/s-0040-1715111DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8110355PMC
June 2021

Analysis of Toll-Like Receptor-2 and 4 Expressions in Peripheral Monocyte Subsets in Patients with Type 1 Diabetes Mellitus.

Immunol Invest 2021 Feb 13;50(2-3):113-124. Epub 2020 Apr 13.

Paediatric Department, Faculty of Medicine, Assiut University , Assiut, Egypt.

: Dysfunction of the peripheral blood monocytes in the form of changes in their proportion, cytokines or pattern-recognition receptors (PRR) expressions may be involved in the pathogenesis of type 1 diabetes mellitus (T1DM). Our aim is to analyze the three monocyte subsets; classical, non-classical and intermediate monocytes and their expression of Toll-like receptors 2 (TLR-2) and 4 (TLR-4) in T1DM patients. : The peripheral blood monocytes of 20 T1DM patients were analyzed by Flow cytometry to measure their count and TLR-2 and TLR-4 expression. : T1DM patients had more non-classical and intermediate monocytes, whereas classical monocytes were comparable between patients and control (20 healthy volunteers). Classical, non-classical and intermediate monocytes had no significant correlations with hemoglobin (Hb) A1C in controls, while all subsets showed positive correlations with HbA1C in T1DM. TLR-2 and TLR-4 expression were significantly increased in classical monocytes in patients, especially those with diabetic ketoacidosis (DKA), and both of them showed positive correlations with the duration of T1DM. The expression of TLR-2 inside non-classical monocytes showed a negative correlation with LDL cholesterol and TLR-4/TLR-2 ratio showed positive correlations with the duration of T1DM and negative correlations with total cholesterol. The expression of TLR-2 inside intermediate monocytes showed positive correlations with the duration of T1DM and TLR-4/TLR-2 ratio showed negative correlations with the duration of T1DM The observed changes in both proportions and TLR-2 and TLR-4 expression of monocyte subsets can raise the possible role in the pathogenesis of early stages of T1DM and DKA. APC: allophycocyanin; CBC: complete blood picture; DKA: diabetic acidosis; DM: diabetes mellitus; FITC: fluorescein isothiocyanate; FSC: forward scatter; Hb: haemoglobin; MFI: mean channel fluorescence intensity; PE: phycoerythrin; PRR: pattern-recognition receptors; SPSS: statistical package for the social sciences; SSC: side scatter; T1DM: Type1DM; TLRs: toll-like receptors.
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http://dx.doi.org/10.1080/08820139.2020.1714649DOI Listing
February 2021

Circulating Endothelial Cells, Circulating Endothelial Progenitor Cells, and Circulating Microparticles in Type 1 Diabetes Mellitus.

Clin Appl Thromb Hemost 2019 Jan-Dec;25:1076029618825311

2 Pediatric Department, Faculty of Medicine, Assiut University, Assiut, Egypt.

Background And Aim:: Hyperglycemia in type 1 diabetes (T1D) is accompanied by endothelial cell dysfunction which is known to contribute to the pathogenesis of cardiovascular disorders. The aim of the current study was to explore the profile of circulating endothelial progenitor cells (EPCs), circulating endothelial cells (CECs), endothelial and platelet derived micropaticles (EMPs, PMPs) and total microparticles (TMPs), in T1D children in relation to each other and to the metabolic disorders accompanying T1D.

Patients And Methods:: Thirty T1D patients and 20 age and sex matched healthy volunteers were assessed for HbA1c level and lipid profile. Quantification of CECs, EPCs, TMPs, EMPs and PMPs was done by flow cytometry.

Results:: The mean levels of EMPs, PMPs, TMPs and CECs were significantly higher in diabetic children compared to controls. Meanwhile, the levels of EPCs were significantly lower in diabetic children compared to controls. Both PMPs and CECs showed the highest significant differences between patients and controls and their levels were directly related to HbA1c, total cholesterol, LDL and triglycerides. A moderate correlation was observed between the frequency of PMPs and CECs. EPCs revealed negative correlations with both LDL and triglycerides. TMPs were only related to LDL, while EMPs were only related to HbA1c.

Conclusion:: Although there is disturbance in the levels of EMPs, PMPs, TMPs, CECs and EPCs in type 1 diabetic children compared to the controls, only the levels of PMPs and CECs were closely affected by the poor glycemic control and dyslipidemia occurring in T1D; thus may contribute to a higher risk of cardiovascular diseases.
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http://dx.doi.org/10.1177/1076029618825311DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6714921PMC
June 2019

A randomized comparative study between intravenous and intramuscular scorpion antivenom regimens in children.

Toxicon 2019 Mar 18;159:45-49. Epub 2019 Jan 18.

Pediatric Department, Faculty of Medicine, Assiut University, Assiut 71516, Egypt.

Background: Scorpion envenomation and its consequences represented a serious healthcare problem in Upper Egypt and considered to be an important cause of life-threatening emergency particularly in children.

Methods: One hundred patients presented to the emergency department of Assiut University Children Hospital with a history of scorpion sting aged less than 18 years were included in our randomized comparative trial during 2016. Two groups of patients were randomly categorized according to the route of administration of scorpion antivenom; intramuscular and intravenous with 50 patients in each group. Full history, clinical examination, and routine baseline investigations were performed.

Results: Myocarditis, encephalopathy, cardiogenic shock, ICU admission, need for mechanical ventilation, mean hospital stay and mortality were significantly lower in those received intravenous antivenom compared with those received intramuscular one.

Conclusion: The results of the present study and other experimental and clinical trials confirmed that the administration of the scorpion antivenom by intravenous route has a lower incidence of systemic toxicity, a better outcome of fatal complication resulted from envenomation especially cardiogenic shock, decreased need for ICU facilities and mechanical ventilation, shorter hospital stay, and better overall outcome than the intramuscular route.

Trial Registration Number: UMIN-CTR Study Design: trial number: UMIN000022032.
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http://dx.doi.org/10.1016/j.toxicon.2019.01.004DOI Listing
March 2019

Myeloid-Derived Suppressor Cells and Costimulatory Molecules in Children With Allergic Rhinitis.

Ann Otol Rhinol Laryngol 2019 Feb 18;128(2):128-134. Epub 2018 Nov 18.

9 Director of Training and Scholarship Administration, MOH, Gizan, Kingdom of Saudi Arabia.

Objectives:: The aim of this study is to assess the level of myeloid-derived suppressor cells (MDSCs) and the expression of costimulatory molecules CD80 and CD86 on monocytes and their ligands (CD28) on T-lymphocytes in children with allergic rhinitis (AR).

Methods:: The study included 60 children with AR and 50 controls. Flow cytometry was performed to analyze MDSCs and the expression of costimulatory molecules CD80 and CD86 on monocytes and their ligands (CD28) on T-lymphocytes.

Results:: The percentages of total and monocytic MDSCs and the expression of costimulatory molecule CD86 on monocytes were significantly higher in children with AR than in healthy controls. In addition, the expressions of CD28 on CD4 and CD8 were significantly elevated in AR patients.

Conclusion:: The present study demonstrated that the percentages of MDSCs were significantly elevated in AR children. Moreover, the expressions of CD28 on CD4 and CD8 were significantly higher in children with AR.
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http://dx.doi.org/10.1177/0003489418812902DOI Listing
February 2019

The role of probiotics in children with autism spectrum disorder: A prospective, open-label study.

Nutr Neurosci 2018 Nov 7;21(9):676-681. Epub 2017 Jul 7.

d Department of Pediatrics, Faculty of Medicine , Assiut University , Assiut , Egypt.

Objective: There are limited data on the efficacy of probiotics in children with ASD, therefore, this study aims to evaluate the efficacy and tolerability of probiotics in an Egyptian cohort of children with ASD.

Methods: Gastrointestinal (GI) flora were assessed by quantitative real-time PCR of stool samples of 30 autistic children from 5 to 9 years old. GI symptoms of autistic children were assessed with a modified six-item Gastrointestinal Severity Index (6-GSI) questionnaire, and autistic symptoms were assessed with Autism Treatment Evaluation Checklist (ATEC) before and after 3 months of supplementation of probiotics nutritional supplement formula (each gram contains 100 × 10 colony forming units of three probiotic strains; Lactobacillus acidophilus, Lactobacillus rhamnosus and Bifidobacteria longum).

Results: After probiotic supplementation, the stool PCR of autistic children showed increases in the colony counts of Bifidobacteria and Lactobacilli levels, with a significant reduction in their body weight as well as significant improvements in the severity of autism (assessed by the ATEC), and gastrointestinal symptoms (assessed by the 6-GSI) compared to the baseline evaluated at the start of the study.

Conclusions: We concluded that probiotics have beneficial effects on both behavioral and GI manifestations of ASD. Probiotics (a non-pharmacological and relatively risk-free option) could be recommended for children with ASD as an adjuvant therapy. At this stage, this study is a single center with a small number of patients and a great deal of additional wide-scale randomized controlled trials are needed to critically confirm the efficacy of probiotics in ASD.

Trial Registration Number: UMIN-CTR Study Design: Trial Number UMIN000026157.
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http://dx.doi.org/10.1080/1028415X.2017.1347746DOI Listing
November 2018

Epidemiological typing of multidrug-resistant Klebsiella pneumoniae, which causes paediatric ventilator-associated pneumonia in Egypt.

J Med Microbiol 2017 May 9;66(5):628-634. Epub 2017 May 9.

Department of Pediatric Medicine, Faculty of Medicine, Assiut University, Egypt.

Purpose: Multidrug-resistant Klebsiella pneumoniae is a common nosocomial pathogen that plays an important role in ventilator-associated pneumonia (VAP). This study aimed to define the clonal relatedness of K. pneumoniae strains isolated from paediatric VAP in addition to those isolated from environmental samples.

Methodology: This study included 19 clinical and 4 environmental K. pneumoniae isolates recovered from the paediatric intensive care unit (PICU) in Assiut University Children's Hospital. The K. pneumoniae isolates were confirmed by biotyping using API strips and subjected to antimicrobial susceptibility testing. The genes coding K1 and K2 capsular types were detected by PCR. The clonal relationships between the K. pneumoniae isolates were determined by pulsed-field gel electrophoresis (PFGE).

Results: Ten resistotypes were detected among all the K. pneumoniae isolates, while PFGE identified seventeen K. pneumoniae pulsotypes. Similar PFGE patterns were found between environmental and clinical isolates and between isolates recovered from different patients, suggesting the circulation of K. pneumoniae pathogens in the PICU and the role of the environment in the spread of infection. No correlation was found between the resistotypes and pulsotypes of the K. pneumoniae isolates. PFGE showed higher discriminatory power for the typing of nosocomial K. pneumoniae [Simpson's diversity index (DI)=0.96] than resistotyping (DI=0.72).

Conclusion: As far as we know, this is the first report of the isolation of the same multidrug-resistant (MDR) K. pneumoniae pulsotype from patients and environmental samples in the same hospital ward in Egypt. This study provides a step on the way to understanding the genotyping and epidemiology of MDR K. pneumoniae for enhanced prevention of bacterial transmission.
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http://dx.doi.org/10.1099/jmm.0.000473DOI Listing
May 2017

A comparative study of propranolol versus silver nitrate cautery in the treatment of recurrent primary epistaxis in children.

Adolesc Health Med Ther 2015 30;6:165-70. Epub 2015 Sep 30.

Pediatric Department, Assiut University Children's Hospital, Faculty of Medicine, Assiut University, Assiut, Egypt.

Background: Epistaxis is a common medical problem in pediatric population. Although in most cases it is mild and self-limiting, a proportion of childhood epistaxis is massive, recurrent, or resistant to conventional management.

Objective: To compare effectiveness of propranolol as a treatment option for childhood epistaxis versus conventional silver nitrate cautery.

Study Design And Methodology: This is a prospective interventional comparative study that was carried out during a period of 1 year (January 1, 2013 to December 31, 2013) at Qena University Hospital and Assiut University Children's Hospital. One hundred children aged 6-12 years who presented with epistaxis to Qena University Hospital and Assiut University Children's Hospital during the study period and fulfilling the inclusion criteria were included in the study. They were randomly assigned into one of two interventional groups, where 50 children were treated with oral propranolol (propranolol treatment group) and another 50 children were treated with conventional silver nitrate cautery (cauterization treatment group) for their epistaxis. Propranolol was given at a dose of 1.5-2 mg/kg/day (divided into three doses). Patients were followed for 6 months after their discharge for recurrence of epistaxis.

Results: Both groups of patients showed minimal recurrent epistaxis with rates of 14% for propranolol treated group and 12% for cauterization group, with no statistically significant difference between both groups. Local pain was found to be more in patients treated with silver nitrate cauterization.

Conclusion: Treatment of primary epistaxis with propranolol or silver nitrate cautery showed equal rates of recurrence, and local nasal pain was slightly more among silver nitrate cauterization treated group. Propranolol could be a favorable treatment option for patients with primary epistaxis. Further studies that include multiple centers and larger number of patients are recommended for more clarification of the effectiveness of such treatment option.
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http://dx.doi.org/10.2147/AHMT.S84806DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4598163PMC
October 2015

A randomized, double-blind, placebo-controlled clinical trial of the efficacy of treatment with zinc in children with intractable epilepsy.

Funct Neurol 2015 Jul-Sep;30(3):181-5

This study was conducted to assess the efficacy of oral zinc supplementation in children with intractable epilepsy. Forty-five children aged between three and 12 years and diagnosed with idiopathic intractable epilepsy at Assiut University Hospital, Assiut, Egypt were recruited. The patients were randomly allocated to two groups: the intervention group received oral zinc supplementation (1 mg/kg/day) while the placebo group received placebo, each for six months. The parents of each child filled in a detailed questionnaire that covered demographic characteristics, type of seizures, frequency, duration of seizures, previous hospital admissions, postictal phenomena and the occurrence of status epilepticus. The primary outcome (frequency of seizures) was compared between the two groups. Zinc supplementation resulted in a significant reduction of seizure frequency in 31% of the treated children. Zinc is an important trace element. Our results suggest that it has mildly beneficial effects in children with intractable epilepsy. We recommend further investigation of oral zinc supplementation as an adjunctive therapy for managing intractable epilepsy in children. Zinc therapy may be an option in treatment protocols for intractable epilepsy in the near future.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4610753PMC
http://dx.doi.org/10.11138/fneur/2015.30.3.181DOI Listing
September 2016

Immunogenicity of Recombinant Hepatitis B Vaccine Among Routinely Vaccinated Healthy and Chronically Ill Children in Assiut, Upper Egypt.

Gastroenterology Res 2015 Aug 22;8(3-4):222-227. Epub 2015 Jul 22.

Department of Pediatrics, Faculty of Medicine, Assiut University, Assiut, Egypt.

Background: Egypt is considered a region of the intermediate prevalence of hepatitis B virus (HBV) infection (4.5%). Seroprotection is assured when hepatitis B surface antibody (HBsAb) levels are ≥ 10 mIU/mL. Our study aimed to evaluate and compare the long-term immunogenicity and efficacy of the recombinant hepatitis B (HB) vaccine.

Methods: A cross-sectional study was done for children aged from 9 months to 15 years, receiving health care at Assiut University Children's Hospital, Assiut, Egypt in 3 months. HBsAb was quantitatively determined by enzyme-linked immune sorbent assay (ELISA).

Results: Seroprotection in infants less than 1 year was 89.7% with 55.2% having titer > 100 mIU/mL and this percent dropped to 64.4% after the first year of age with only 29% having titer > 100 mIU/mL. The overall protection percentage was 32.5% (> 100 mIU/mL), 34.7% of children showed levels between 10 and 100 mIU/mL, while 32.8% were less than 10 mIU/mL. Patients with diabetes mellitus were found to have the lowest seroprotective levels (83.3% were not protected). Non-protective levels were also detected in patients with malnutrition (55.6%), congenital heart diseases (43.2%) and chronic liver diseases (57.1%).

Conclusion: Our study shows failure to achieve satisfactory seroprotective levels for hepatitis B vaccine in both healthy and diseased children who adopted vaccination schedule in Upper Egypt. Booster dose in the second year of life is recommended for all children, particularly for those with diabetes millets, congenital heart disease and malnutrition.
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http://dx.doi.org/10.14740/gr636eDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5040530PMC
August 2015

Impact of Educational Program on the Management of Chronic Suppurative Otitis Media among Children.

Int J Otolaryngol 2015 22;2015:624317. Epub 2015 Feb 22.

Public Health, Faculty of Nursing, Assiut University, Egypt.

Background. Chronic suppurative otitis media (CSOM) remains one of the most common childhood chronic infectious diseases worldwide, affecting diverse racial and cultural groups in both developing and industrialized countries. Aim of the Study. This study aimed to assess the impact of educational program on the management of children with CSOM. Subjects and Methods. An experimental study design was used. This study included 100 children of both sexes of 2 years and less of age with CSOM. Those children were divided into 3 groups: group I: it involved 50 children with CSOM (naive) who received the designed educational program; control group: it involved 50 children who were under the traditional treatment and failed to respond; group II: those children in the control group were given the educational program and followed up in the same way as group I and considered as group II. Tools of the Study. Tool I is a structured questionnaire interview sheet for mothers. It consists of four parts: (1) personal and sociodemographic characteristics of child and (2) data about risk factors of otitis media (3) assessment of maternal practice about care of children with suppurative otitis medi (4) diagnostic criteria for suppurative otitis media. Tool II is the educational program: an educational program was developed by the researchers based on the knowledge and practices needs. This study was carried out through a period of 9 months starting from September 2013 to May 2014. The educational program was implemented for mothers of children with CSOM in the form of 5 scheduled sessions at the time of diagnosis, after one week, 1, 3, and 6 months. Results. There were significant differences between children who received the educational program and control group regarding the response to treatment after one and 3 months. The percentages of complete cure increased progressively 32%, 60%, and 84% after 1, 3, and 6 months in group I while they were 24%, 44%, and 64% in group II, respectively. Cure (dry perforation) was 64%, 36%, and 12% among children of group I after 1, 3, and 6 months while it was 64%, 44%, and 24% in group II, respectively. The percentages of compliance to the educational program improved with time in both groups: 44%, 64%, and 80% in group I and 32%, 48%, and 56% in group II after 1, 3, and 6 months, respectively. The percentages of cure were statistically significantly higher among children with complete compliance with the educational program in both groups in comparison to those with incomplete compliance (P = 0.000 for both). Conclusions. From this study we can conclude that the majority of children with CSOM had one or more risk factors for occurrence of the disease; the educational program is effective for management of CSOM (whether cure or complete cure); the higher the compliance of mothers with the program the higher the response rate; regular followup and explanation of the importance of the program played an important role in the compliance with the program.
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http://dx.doi.org/10.1155/2015/624317DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4352455PMC
March 2015
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