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Nawab R, Ali M, Haroon U, Kamal A, Akbar M, Anwar F, Ahmed J, Chaudhary HJ, Iqbal A, Hashem M, Alamri S, ALHaithloul HAS, Munis MFH. Calotropis procera (L.) mediated synthesis of AgNPs and their application to control leaf spot of Hibiscus rosa-sinensis (L.). BRAZ J BIOL 2024; 84:e261123. [DOI: 10.1590/1519-6984.261123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/23/2022] [Indexed: 11/22/2022] Open
Abstract
Abstract Nature is gifted with a wide range of ornamental plants, which beautify and clean the nature. Due to its great aesthetic value, there is a need to protect these plants from a variety of biotic and abiotic stresses. Hibiscus rosa-sinensis (L.) is an ornamental plant and it is commonly known as China rose or shoeblack plant. It is affected by several fungal and bacterial pathogens. Current study was designed to isolate leaf spot pathogen of H. rosa-sinensis and its control using silver nanoparticles (AgNPs). Based on molecular and morphological features, the isolated leaf spot pathogen was identified as Aspergillus niger. AgNPs were synthesized in the leaf extract of Calotropis procera and characterized. UV-vis spectral analysis displayed discrete plasmon resonance bands on the surface of synthesized AgNPs, depicting the presence of aromatic amino acids. Fourier transform infrared spectroscopy (FTIR) described the presence of C-O, NH, C-H, and O-H functional groups, which act as stabilizing and reducing molecules. X-ray diffraction (XRD) revealed the average size (~32.43 nm) of AgNPs and scanning electron microscopy (SEM) depicted their spherical nature. In this study, in vitro and in vivo antifungal activity of AgNPs was investigated. In vitro antifungal activity analysis revealed the highest growth inhibition of mycelia (87%) at 1.0 mg/ml concentration of AgNPs. The same concentration of AgNPs tremendously inhibited the spread of disease on infected leaves of H. rosa-sinensis. These results demonstrated significant disease control ability of AgNPs and suggested their use on different ornamental plants.
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Affiliation(s)
- R. Nawab
- Quaid-i-Azam University, Pakistan
| | - M. Ali
- Quaid-i-Azam University, Pakistan
| | | | - A. Kamal
- Quaid-i-Azam University, Pakistan
| | - M. Akbar
- Quaid-i-Azam University, Pakistan
| | - F. Anwar
- Quaid-i-Azam University, Pakistan
| | - J. Ahmed
- Quaid-i-Azam University, Pakistan
| | | | - A. Iqbal
- Quaid-i-Azam University, Pakistan
| | - M. Hashem
- King Khalid University, Saudi Arabia; Assiut University, Egypt
| | - S. Alamri
- King Khalid University, Saudi Arabia
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2
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Ahmed S, Bonnett L, Melhuish A, Adil MT, Aggarwal I, Ali W, Bennett J, Boldock E, Burns FA, Czarniak E, Dennis R, Flower B, Fok R, Goodman AL, Halai S, Hanna T, Hashem M, Hodgson SH, Hughes G, Hurndall KH, Hyland R, Iqbal MR, Jarchow-MacDonald A, Kailavasan M, Klimovskij M, Laliotis A, Lambourne J, Lawday S, Lee F, Lindsey B, Lund JN, Mabayoje DA, Malik KI, Muir A, Narula HS, Ofor U, Parsons H, Pavelle T, Prescott K, Rajgopal A, Roy I, Sagar J, Scarborough C, Shaikh S, Smart CJ, Snape S, Tabaqchali MA, Tennakoon A, Tilley R, Vink E, White L, Burke D, Kirby A. Development and internal validation of clinical prediction models for outcomes of complicated intra-abdominal infection. Br J Surg 2021; 108:441-447. [PMID: 33615351 DOI: 10.1093/bjs/znaa117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/05/2020] [Indexed: 11/14/2022]
Abstract
BACKGROUND Complicated intra-abdominal infections (cIAIs) are associated with significant morbidity and mortality. The aim of this study was to describe the clinical characteristics of patients with cIAI in a multicentre study and to develop clinical prediction models (CPMs) to help identify patients at risk of mortality or relapse. METHODS A multicentre observational study was conducted from August 2016 to February 2017 in the UK. Adult patients diagnosed with cIAI were included. Multivariable logistic regression was performed to develop CPMs for mortality and cIAI relapse. The c-statistic was used to test model discrimination. Model calibration was tested using calibration slopes and calibration in the large (CITL). The CPMs were then presented as point scoring systems and validated further. RESULTS Overall, 417 patients from 31 surgical centres were included in the analysis. At 90 days after diagnosis, 17.3 per cent had a cIAI relapse and the mortality rate was 11.3 per cent. Predictors in the mortality model were age, cIAI aetiology, presence of a perforated viscus and source control procedure. Predictors of cIAI relapse included the presence of collections, outcome of initial management, and duration of antibiotic treatment. The c-statistic adjusted for model optimism was 0.79 (95 per cent c.i. 0.75 to 0.87) and 0.74 (0.73 to 0.85) for mortality and cIAI relapse CPMs. Adjusted calibration slopes were 0.88 (95 per cent c.i. 0.76 to 0.90) for the mortality model and 0.91 (0.88 to 0.94) for the relapse model; CITL was -0.19 (95 per cent c.i. -0.39 to -0.12) and - 0.01 (- 0.17 to -0.03) respectively. CONCLUSION Relapse of infection and death after complicated intra-abdominal infections are common. Clinical prediction models were developed to identify patients at increased risk of relapse or death after treatment, these now require external validation.
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Affiliation(s)
- S Ahmed
- Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - L Bonnett
- Department of Biostatistics, University of Liverpool, Liverpool, UK
| | - A Melhuish
- Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - M T Adil
- Department of Upper GI and Bariatric Surgery, Luton and Dunstable University Hospital NHS Foundation Trust, Luton, UK
| | - I Aggarwal
- Infection Unit, Ninewells Hospital, NHS Tayside, Dundee, UK
| | - W Ali
- Department of Surgery, Pilgrim Hospital, United Lincolnshire Hospitals NHS Trust, Boston, UK
| | - J Bennett
- Cambridge Oesophago-Gastric Centre, Addenbrooke's Hospital, Cambridge, UK
| | - E Boldock
- Department of Microbiology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield
| | - F A Burns
- Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - E Czarniak
- Department of Microbiology, Royal Infirmary of Edinburgh, NHS Lothian, Edinburgh, UK
| | - R Dennis
- Colorectal Surgery Department, North West Anglia NHS Foundation Trust, Peterborough, UK
| | - B Flower
- Department of Infection, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, London, UK
| | - R Fok
- Department of Microbiology, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - A L Goodman
- Department of Infection, Guy's and St Thomas' NHS Foundation Trust, St Thomas' Hospital, London, UK
| | - S Halai
- Department of Surgery, Lister Hospital, East and North Hertfordshire NHS Trust, Stevenage, UK
| | - T Hanna
- Department of Surgery, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - M Hashem
- Department of Surgery, Maidstone and Tunbridge Wells NHS Foundation Trust, Kent, UK
| | - S H Hodgson
- Department of Infection, Oxford University Hospital NHS Foundation Trust, Oxford, UK
| | - G Hughes
- Infectious Diseases and Microbiology, Worcestershire Acute Hospitals NHS Trust, Worcester, UK
| | - K-H Hurndall
- Department of Surgery, Maidstone and Tunbridge Wells NHS Foundation Trust, Kent, UK
| | - R Hyland
- Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - M R Iqbal
- Department of Surgery, Maidstone and Tunbridge Wells NHS Foundation Trust, Kent, UK
| | | | - M Kailavasan
- Department of Urology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - M Klimovskij
- Department of Surgery, Conquest Hospital, East Sussex NHS Healthcare Trust, East Sussex, UK
| | - A Laliotis
- Cambridge Oesophago-Gastric Centre, Addenbrooke's Hospital, Cambridge, UK
| | - J Lambourne
- Division of Infection, Barts Health NHS Trust, London, UK
| | - S Lawday
- Department of Surgery, Royal Devon and Exeter NHS Foundation Trust, Exeter, UK
| | - F Lee
- Radiology Department, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - B Lindsey
- Department of Microbiology, The Whittington Hospital, Whittington Health NHS Trust, London, UK
| | - J N Lund
- Division of Medical Sciences and Graduate Entry Medicine, Royal Derby Hospital, University of Nottingham, Derby, UK
| | - D A Mabayoje
- Division of Infection, Barts Health NHS Trust, London, UK
| | - K I Malik
- Department of Surgery, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - A Muir
- Department of Microbiology, Royal Preston Hospital, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK
| | - H S Narula
- Department of Surgery, Chesterfield Royal Hospital NHS Trust Hospital, Chesterfield, UK
| | - U Ofor
- Department of Surgery, Pilgrim Hospital, United Lincolnshire Hospitals NHS Trust, Boston, UK
| | - H Parsons
- Department of Microbiology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield
| | - T Pavelle
- Shrewsbury and Telford NHS Trust, Shrewsbury, UK
| | - K Prescott
- Microbiology and Infectious Diseases, Queen's Medical Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - A Rajgopal
- Department of Microbiology, Calderdale and Huddersfield NHS Trust, Huddersfield, UK
| | - I Roy
- Colorectal Surgery Department, North West Anglia NHS Foundation Trust, Peterborough, UK
| | - J Sagar
- Department of Upper GI and Bariatric Surgery, Luton and Dunstable University Hospital NHS Foundation Trust, Luton, UK
| | - C Scarborough
- Department of Infection, Oxford University Hospital NHS Foundation Trust, Oxford, UK
| | - S Shaikh
- Department of Surgery, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, UK
| | - C J Smart
- Department of Surgery, Macclesfield District General Hospital, East Cheshire NHS Trust, Cheshire, UK
| | - S Snape
- Microbiology and Infectious Diseases, Queen's Medical Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - M A Tabaqchali
- Department of Surgery, University Hospital North Tees, Stockton on Tees, UK
| | - A Tennakoon
- Department of Surgery, Pilgrim Hospital, United Lincolnshire Hospitals NHS Trust, Boston, UK
| | - R Tilley
- Department of Microbiology, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - E Vink
- Department of Microbiology, Royal Infirmary of Edinburgh, NHS Lothian, Edinburgh, UK
| | - L White
- Department of Microbiology, Royal Preston Hospital, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK
| | - D Burke
- Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds, UK.,Department of Surgery, University Hospital North Tees, Stockton on Tees, UK
| | - A Kirby
- Leeds General Infirmary, Leeds Teaching Hospitals NHS Trust, Leeds, UK.,Department of Surgery, University Hospital North Tees, Stockton on Tees, UK
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3
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Abdelwahab SF, Hamdy S, Osman AM, Zakaria ZA, Galal I, Sobhy M, Hashem M, Allam WR, Abdel‐Samiee M, Rewisha E, Waked I. Association of the polymorphism of the Toll-like receptor (TLR)-3 and TLR-9 genes with hepatitis C virus-specific cell-mediated immunity outcomes among Egyptian health-care workers. Clin Exp Immunol 2021; 203:3-12. [PMID: 32939755 PMCID: PMC7744502 DOI: 10.1111/cei.13514] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/29/2020] [Accepted: 09/02/2020] [Indexed: 02/05/2023] Open
Abstract
Variations in the immune response could explain resistance to hepatitis C virus (HCV) infection. Toll-like receptor gene (TLR)-3 is an innate detector of dsRNA viruses, and the TLR-9 gene recognizes bacterial and viral unmethylated cytosine-phosphate-guanosine (CpG) motifs. We previously reported that the TLR-3.rs3775290 CC genotype was associated with HCV chronicity and that the TLR-9 gene played no major role in this infection. This study identified the role of TLR-3.rs3775290 (c.1377C/T), TLR-9.rs5743836 (-1237T→C) and TLR-9.rs352140 (G2848A) gene polymorphisms in predicting the outcome of HCV-specific cell-mediated immunity (CMI) among Egyptian health-care workers (HCWs). We enrolled 265 HCWs in this study and divided them into four groups. Group 1: 140 seronegative-aviraemic HCWs; group 2: 20 seronegative-viraemic HCWs; group 3: 35 subjects with spontaneously resolved HCV infection; and group 4: 70 chronic HCV HCWs (patients). All subjects were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis for the TLR-3.rs3775290, TLR-9.rs5743836 and TLR-9.rs352140 single nucleotide polymorphisms (SNPs). We also quantified HCV-specific CMI in the four groups using an interferon (IFN)-γ enzyme-linked immunospot (ELISPOT) assay in response to nine HCV genotype 4a, overlapping 15mer peptide pools covering the whole viral genome. No statistically significant difference was found between CMI-responding subjects with different HCV states and TLR-3.rs3775290 or TLR-9.rs352140 genotypes. However, there was a significant relationship between the outcome of the HCV-specific CMI and the TLR-9.rs5743836 genotype among the responding subjects (P = 0·005) and the chronic HCV patients (P = 0·044). In conclusion, TLR-9.rs5743836 SNP, but not TLR-3.rs3775290 or TLR-9.rs352140 genotypes, could predict the outcome of HCV-specific CMI responses among Egyptians infected with genotype-4.
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Affiliation(s)
- S. F. Abdelwahab
- The Egyptian Holding Company for Biological Products and Vaccines (VACSERA)GizaEgypt
- Division of MicrobiologyDepartment of Pharmaceutics and Industrial PharmacyTaif College of PharmacyAl‐Haweiah, TaifSaudi Arabia
- Department of Microbiology and ImmunologyFaculty of MedicineMinia UniversityMiniaEgypt
| | - S. Hamdy
- The Egyptian Holding Company for Biological Products and Vaccines (VACSERA)GizaEgypt
- Department of ZoologyFaculty of ScienceCairo UniversityGizaEgypt
| | - A. M. Osman
- Department of ZoologyFaculty of ScienceCairo UniversityGizaEgypt
| | - Z. A. Zakaria
- The Egyptian Holding Company for Biological Products and Vaccines (VACSERA)GizaEgypt
- Biomedical Research LaboratoryFaculty of PharmacyHeliopolis University for Sustainable DevelopmentCairoEgypt
| | - I. Galal
- The Egyptian Holding Company for Biological Products and Vaccines (VACSERA)GizaEgypt
| | - M. Sobhy
- The Egyptian Holding Company for Biological Products and Vaccines (VACSERA)GizaEgypt
| | - M. Hashem
- The Egyptian Holding Company for Biological Products and Vaccines (VACSERA)GizaEgypt
- Department of Epidemiology and Public HealthUniversity of Maryland School of MedicineBaltimoreMDUSA
| | - W. R. Allam
- The Egyptian Holding Company for Biological Products and Vaccines (VACSERA)GizaEgypt
- Centre for GenomicsUniversity of Science and TechnologyZewail City of Science and TechnologyGizaEgypt
| | - M. Abdel‐Samiee
- Department of Hepatology and GastroenterologyNational Liver InstituteMenoufia UniversityMenoufiaEgypt
| | - E. Rewisha
- Department of Hepatology and GastroenterologyNational Liver InstituteMenoufia UniversityMenoufiaEgypt
| | - I. Waked
- Department of Hepatology and GastroenterologyNational Liver InstituteMenoufia UniversityMenoufiaEgypt
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4
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Patel N, Alkuraya H, Alzahrani SS, Nowailaty SR, Seidahmed MZ, Alhemidan A, Ben-Omran T, Ghazi NG, Al-Aqeel A, Al-Owain M, Alzaidan HI, Faqeih E, Kurdi W, Rahbeeni Z, Ibrahim N, Abdulwahab F, Hashem M, Shaheen R, Abouelhoda M, Monies D, Khan AO, Aldahmesh MA, Alkuraya FS. Mutations in known disease genes account for the majority of autosomal recessive retinal dystrophies. Clin Genet 2018; 94:554-563. [PMID: 30054919 DOI: 10.1111/cge.13426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/23/2018] [Accepted: 07/25/2018] [Indexed: 01/01/2023]
Abstract
Retinal dystrophies (RDs) are hereditary blinding eye conditions that are highly variable in their clinical presentation. The remarkable genetic heterogeneity that characterizes RD was a major challenge in establishing the molecular diagnosis in these patients until the recent advent of next-generation sequencing. It remains unclear, however, what percentage of autosomal recessive RD remain undiagnosed when all established RD genes are sequenced. We enrolled 75 families in which RD segregates in an apparently autosomal recessive manner. We show that the yield of a multigene panel that contains known RD genes is 67.5%. The higher yield (82.3%) when whole exome sequencing was implemented instead was often due to hits in genes that were not included in the original design of the panel. We also show the value of homozygosity mapping even during the era of exome sequencing in uncovering cryptic mutations. In total, we describe 45 unique likely deleterious variants (of which 18 are novel including one deep intronic and one genomic deletion mutation). Our study suggests that the genetic heterogeneity of autosomal recessive RD is approaching saturation and that any new RD genes will probably account for only a minor role in the mutation burden.
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Affiliation(s)
- N Patel
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - H Alkuraya
- Global Eye Care, Specialized Medical Center Hospital, Riyadh, Saudi Arabia
| | - S S Alzahrani
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - S R Nowailaty
- Vitreoretinal Division, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
| | - M Z Seidahmed
- Pediatric Department, Security Forces Hospital, Riyadh, Saudi Arabia
| | - A Alhemidan
- Department of Ophthalmology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - T Ben-Omran
- Clinical and Metabolic Genetics, Department of Pediatrics, Hamad Medical Corporation, Doha, Qatar
| | - N G Ghazi
- Department of Ophthalmology, Lebanese American University, Lebanese American University Medical Center Rizk Hospital, Beirut, Lebanon
| | - A Al-Aqeel
- Department of Pediatric, Prince Sultan Medical Military City, Riyadh, Saudi Arabia.,Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - M Al-Owain
- Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia.,Department of Medical Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - H I Alzaidan
- Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia.,Department of Medical Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - E Faqeih
- Section of Medical Genetics, Department of Pediatric Subspecialties, Children's Specialist Hospital, King Fahad Medical City, Riyadh, Saudi Arabia
| | - W Kurdi
- Department of Obstetrics and Gynecology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Z Rahbeeni
- Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia.,Department of Medical Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - N Ibrahim
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - F Abdulwahab
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - M Hashem
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - R Shaheen
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - M Abouelhoda
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.,Saudi Human Genome Project, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - D Monies
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.,Saudi Human Genome Project, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - A O Khan
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.,Eye Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates.,Department of Ophthalmology, Cleveland Clinic Lerner College of Medicine of Case Western University, Cleveland, Ohio
| | - M A Aldahmesh
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Fowzan S Alkuraya
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.,Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia.,Saudi Human Genome Project, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
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5
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Patel N, Khan AO, Alsahli S, Abdel-Salam G, Nowilaty SR, Mansour AM, Nabil A, Al-Owain M, Sogati S, Salih MA, Kamal AM, Alsharif H, Alsaif HS, Alzahrani SS, Abdulwahab F, Ibrahim N, Hashem M, Faquih T, Shah ZA, Abouelhoda M, Monies D, Dasouki M, Shaheen R, Wakil SM, Aldahmesh MA, Alkuraya FS. Genetic investigation of 93 families with microphthalmia or posterior microphthalmos. Clin Genet 2018; 93:1210-1222. [PMID: 29450879 DOI: 10.1111/cge.13239] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/12/2018] [Accepted: 02/12/2018] [Indexed: 01/24/2023]
Abstract
Microphthalmia is a developmental eye defect that is highly variable in severity and in its potential for systemic association. Despite the discovery of many disease genes in microphthalmia, at least 50% of patients remain undiagnosed genetically. Here, we describe a cohort of 147 patients (93 families) from our highly consanguineous population with various forms of microphthalmia (including the distinct entity of posterior microphthalmos) that were investigated using a next-generation sequencing multi-gene panel (i-panel) as well as whole exome sequencing and molecular karyotyping. A potentially causal mutation was identified in the majority of the cohort with microphthalmia (61%) and posterior microphthalmos (82%). The identified mutations (55 point mutations, 15 of which are novel) spanned 24 known disease genes, some of which have not or only very rarely been linked to microphthalmia (PAX6, SLC18A2, DSC3 and CNKSR1). Our study has also identified interesting candidate variants in 2 genes that have not been linked to human diseases (MYO10 and ZNF219), which we present here as novel candidates for microphthalmia. In addition to revealing novel phenotypic aspects of microphthalmia, this study expands its allelic and locus heterogeneity and highlights the need for expanded testing of patients with this condition.
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Affiliation(s)
- N Patel
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - A O Khan
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia.,Eye Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - S Alsahli
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | | | - S R Nowilaty
- Vitreo-retinal Division, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
| | - A M Mansour
- Department of Ophthalmology, American University of Beirut, Beirut, Lebanon
| | - A Nabil
- Human Genetics Department, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - M Al-Owain
- Department of Medical Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.,Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - S Sogati
- Department of Medical Genetics, King Fahad General Hospital, Jeddah, Saudi Arabia
| | - M A Salih
- Division of Pediatrics Neurology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - A M Kamal
- Department of Ophthalmology, Cairo University, Cairo, Egypt
| | - H Alsharif
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - H S Alsaif
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - S S Alzahrani
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - F Abdulwahab
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - N Ibrahim
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - M Hashem
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - T Faquih
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia.,Saudi Human Genome Project, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Z A Shah
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia.,Saudi Human Genome Project, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - M Abouelhoda
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia.,Saudi Human Genome Project, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - D Monies
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia.,Saudi Human Genome Project, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - M Dasouki
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - R Shaheen
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - S M Wakil
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - M A Aldahmesh
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - F S Alkuraya
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia.,Saudi Human Genome Project, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia.,Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
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6
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Cox KL, Sharma N, Taylor-Phillips S, Weeks J, Mills P, Lim A, Haigh I, Sever A, Wallis M, DeSilva T, Hashem M. Abstract PD2-04: Enhanced pre-operative axillary staging using intradermal microbubbles and contrast-enhanced ultrasound (CEUS) to identify and biopsy sentinel lymph nodes (SLN) in breast cancer is a reproducible technique and may characterise a group of patients who can completely avoid axillary surgery. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-pd2-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose
In patients with breast cancer, avoiding overtreatment of the axilla without compromising oncological outcomes is an important clinical goal. Previous work has suggested that patients with a normal grey-scale ultrasound and benign radiological core biopsy of SLN identified with CEUS are unlikely to have high volume axillary metastases. We therefore assessed the reproducibility of this biopsy technique in multiple centres and in 2 centres, measured the volume of axillary metastases at the end of primary surgical treatment in patients with a false negative SLN core biopsy.
Materials and Methods
Between 2010 and 2016 data were collected on patients with early breast cancer; 1361 from Maidstone Breast Clinic (1) (prospective, sequential), 376 from Tunbridge Wells Breast Clinic (2) (retrospective, sequential), 122 from Leeds Breast Clinic (3) (retrospective, selected) and 48 from Imperial College Healthcare (4) (prospective, selected). Patients at Centres 1 and 2 had a normal grey-scale axillary ultrasound. Patients had a CEUS SLN core biopsy procedure prior to axillary surgery (sentinel lymph node excision (SLNE)/axillary lymph node dissection (ALND)).
Results
SLN were successfully core biopsied (nodal tissue retrieved) in 80% (Centre 1), 79.5% (Centre 2), 77.5% (Centre 3) and 88% (Centre 4). Patients with invasive breast cancer and a successful SLN core biopsy went on to have primary surgical treatment, 816 (Centre 1), 215 (Centre 2), 80 (Centre 3) and 38 (Centre 4). As a test to identify all SLN metastases, the sensitivities were 47.5% (95% CI 39.9-55.1), 52.5% (95% CI 39.1-65.7), 46.4% (95% CI 27.5-66.1) and 45.5% (95% CI 16.7-76.6) respectively. Specificities; 99.7% (95% CI 98.9-100), 98.1 (95% CI 94.5-99.6), 100% (95% CI 93.2-100%) and 96.3% (95% CI 81-99.9) respectively. Negative predictive values; 87.3% (95% CI 84.6-89.6), 84.5% (95% CI 78.4-89.5), 86.9% (95% CI 82.4-90.3) and 86.2% (95% CI 78.4-91.5) respectively. At Centres 1 and 2, 13/637 (2%) and 6/183 (3%) respectively of patients with a benign microbubble/ CEUS SLN core biopsy had 2 or more LN macrometastases found at SLNE/ ALND.
Conclusion
The identification and biopsy of SLN using CEUS is a reproducible technique. Despite the low sensitivity, the negative predictive value is high and in a large cohort of patients from centres 1 and 2, only a small proportion of patients had 2 or more 2 lymph node macro metastases that were both occult on grey-scale ultrasound and missed by SLN core biopsy. In the era of axillary conservation, these results indicate that some patients may be suitable for complete radiological staging of the axilla and thus safely avoid axillary surgery.
Citation Format: Cox KL, Sharma N, Taylor-Phillips S, Weeks J, Mills P, Lim A, Haigh I, Sever A, Wallis M, DeSilva T, Hashem M. Enhanced pre-operative axillary staging using intradermal microbubbles and contrast-enhanced ultrasound (CEUS) to identify and biopsy sentinel lymph nodes (SLN) in breast cancer is a reproducible technique and may characterise a group of patients who can completely avoid axillary surgery [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr PD2-04.
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Affiliation(s)
- KL Cox
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
| | - N Sharma
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
| | - S Taylor-Phillips
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
| | - J Weeks
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
| | - P Mills
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
| | - A Lim
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
| | - I Haigh
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
| | - A Sever
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
| | - M Wallis
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
| | - T DeSilva
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
| | - M Hashem
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; WMS - Population Evidence and Technologies, University of Warwick, Coventry, United Kingdom; Leeds Breast Unit, Leeds, Yorkshire, United Kingdom; Breast Care Unit, Kings College Hospital, London, United Kingdom; Charing Cross Hospital, London, United Kingdom; Addenbrooke's Treatment Centre, Cambridge, United Kingdom; School of Surgery, KSS, London, United Kingdom
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7
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Abd-Elsamed AA, Hashem M, Al-Habshy A. SUSCEPTIBILITY OF DIFFERENT SOLANACEOUS PLANT VARIETIES TO THE INFESTATION BY CERTAIN PIERCING SUCKING PESTS AT EL-KASASINE DISTRICT, ISMAILIA GOVERNORATE, EGYPT. Zagazig Journal of Agricultural Research 2018; 45:177-187. [DOI: 10.21608/zjar.2018.49829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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8
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Suleiman J, Allingham-Hawkins D, Hashem M, Shamseldin HE, Alkuraya FS, El-Hattab AW. WDR45B-related intellectual disability, spastic quadriplegia, epilepsy, and cerebral hypoplasia: A consistent neurodevelopmental syndrome. Clin Genet 2017; 93:360-364. [PMID: 28503735 DOI: 10.1111/cge.13054] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 04/25/2017] [Accepted: 05/09/2017] [Indexed: 11/29/2022]
Abstract
The advancement in genomic sequencing has greatly improved the diagnostic yield for neurodevelopmental disorders and led to the discovery of large number of novel genes associated with these disorders. WDR45B has been identified as a potential intellectual disability gene through genomic sequencing of 2 large cohorts of affected individuals. In this report we present 6 individuals from 3 unrelated families with homozygous pathogenic variants in WDR45B: c.799C>T (p.Q267*) in 1 family and c.673C>T (p.R225*) in 2 families. These individuals shared a similar phenotype including profound development delay, early-onset refractory epilepsy, progressive spastic quadriplegia and contractures, and brain malformations. Neuroimaging showed ventriculomegaly, reduced cerebral white matter volume, and thinning of cerebral gray matter. The consistency in the phenotype strongly supports that WDR45B is associated with this disease.
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Affiliation(s)
- J Suleiman
- Division of Neurology, Department of Pediatrics, Tawam Hospital, Al-Ain, United Arab Emirates
| | | | - M Hashem
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - H E Shamseldin
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - F S Alkuraya
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.,Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia.,Saudi Human Genome Program, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - A W El-Hattab
- Division of Genetic and Metabolic Disorders, Department of Pediatrics, Tawam Hospital, Al-Ain, United Arab Emirates
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9
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Ramadan W, Patel N, Anazi S, Kentab A, Bashiri F, Hamad M, Jad L, Salih M, Alsaif H, Hashem M, Faqeih E, Shamseddin H, Alkuraya F. Confirming the recessive inheritance of SCN1B
mutations in developmental epileptic encephalopathy. Clin Genet 2017; 92:327-331. [DOI: 10.1111/cge.12999] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 02/14/2017] [Accepted: 02/14/2017] [Indexed: 01/17/2023]
Affiliation(s)
- W. Ramadan
- Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
| | - N. Patel
- Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
| | - S. Anazi
- Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
| | - A.Y. Kentab
- Department of Pediatrics; College of Medicine and King Khalid University Hospital, King Saud University; Riyadh Saudi Arabia
| | - F.A. Bashiri
- Department of Pediatrics; College of Medicine and King Khalid University Hospital, King Saud University; Riyadh Saudi Arabia
| | - M.H. Hamad
- Department of Pediatrics; College of Medicine and King Khalid University Hospital, King Saud University; Riyadh Saudi Arabia
| | - L. Jad
- Department of Pediatric Subspecialties; Children's Hospital, King Fahad Medical City; Riyadh Saudi Arabia
| | - M.A. Salih
- Department of Pediatrics; College of Medicine and King Khalid University Hospital, King Saud University; Riyadh Saudi Arabia
| | - H. Alsaif
- Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
| | - M. Hashem
- Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
| | - E. Faqeih
- Department of Pediatric Subspecialties; Children's Hospital, King Fahad Medical City; Riyadh Saudi Arabia
| | - H.E. Shamseddin
- Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
| | - F.S. Alkuraya
- Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
- Department of Anatomy and Cell Biology, College of Medicine; Alfaisal University; Riyadh Saudi Arabia
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10
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Anazi S, Maddirevula S, Faqeih E, Alsedairy H, Alzahrani F, Shamseldin HE, Patel N, Hashem M, Ibrahim N, Abdulwahab F, Ewida N, Alsaif HS, Al Sharif H, Alamoudi W, Kentab A, Bashiri FA, Alnaser M, AlWadei AH, Alfadhel M, Eyaid W, Hashem A, Al Asmari A, Saleh MM, AlSaman A, Alhasan KA, Alsughayir M, Al Shammari M, Mahmoud A, Al-Hassnan ZN, Al-Husain M, Osama Khalil R, Abd El Meguid N, Masri A, Ali R, Ben-Omran T, El Fishway P, Hashish A, Ercan Sencicek A, State M, Alazami AM, Salih MA, Altassan N, Arold ST, Abouelhoda M, Wakil SM, Monies D, Shaheen R, Alkuraya FS. Clinical genomics expands the morbid genome of intellectual disability and offers a high diagnostic yield. Mol Psychiatry 2017; 22:615-624. [PMID: 27431290 DOI: 10.1038/mp.2016.113] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 06/02/2016] [Accepted: 06/06/2016] [Indexed: 12/13/2022]
Abstract
Intellectual disability (ID) is a measurable phenotypic consequence of genetic and environmental factors. In this study, we prospectively assessed the diagnostic yield of genomic tools (molecular karyotyping, multi-gene panel and exome sequencing) in a cohort of 337 ID subjects as a first-tier test and compared it with a standard clinical evaluation performed in parallel. Standard clinical evaluation suggested a diagnosis in 16% of cases (54/337) but only 70% of these (38/54) were subsequently confirmed. On the other hand, the genomic approach revealed a likely diagnosis in 58% (n=196). These included copy number variants in 14% (n=54, 15% are novel), and point mutations revealed by multi-gene panel and exome sequencing in the remaining 43% (1% were found to have Fragile-X). The identified point mutations were mostly recessive (n=117, 81%), consistent with the high consanguinity of the study cohort, but also X-linked (n=8, 6%) and de novo dominant (n=19, 13%). When applied directly on all cases with negative molecular karyotyping, the diagnostic yield of exome sequencing was 60% (77/129). Exome sequencing also identified likely pathogenic variants in three novel candidate genes (DENND5A, NEMF and DNHD1) each of which harbored independent homozygous mutations in patients with overlapping phenotypes. In addition, exome sequencing revealed de novo and recessive variants in 32 genes (MAMDC2, TUBAL3, CPNE6, KLHL24, USP2, PIP5K1A, UBE4A, TP53TG5, ATOH1, C16ORF90, SLC39A14, TRERF1, RGL1, CDH11, SYDE2, HIRA, FEZF2, PROCA1, PIANP, PLK2, QRFPR, AP3B2, NUDT2, UFC1, BTN3A2, TADA1, ARFGEF3, FAM160B1, ZMYM5, SLC45A1, ARHGAP33 and CAPS2), which we highlight as potential candidates on the basis of several lines of evidence, and one of these genes (SLC39A14) was biallelically inactivated in a potentially treatable form of hypermanganesemia and neurodegeneration. Finally, likely causal variants in previously published candidate genes were identified (ASTN1, HELZ, THOC6, WDR45B, ADRA2B and CLIP1), thus supporting their involvement in ID pathogenesis. Our results expand the morbid genome of ID and support the adoption of genomics as a first-tier test for individuals with ID.
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Affiliation(s)
- S Anazi
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - S Maddirevula
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - E Faqeih
- Department of Pediatric Subspecialties, Children's Hospital, King Fahad Medical City, Riyadh, Saudi Arabia
| | - H Alsedairy
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - F Alzahrani
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - H E Shamseldin
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - N Patel
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - M Hashem
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - N Ibrahim
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - F Abdulwahab
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - N Ewida
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - H S Alsaif
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - H Al Sharif
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - W Alamoudi
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - A Kentab
- Department of Pediatrics, College of Medicine & King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - F A Bashiri
- Department of Pediatrics, College of Medicine & King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - M Alnaser
- Department of Pediatrics, College of Medicine & King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - A H AlWadei
- Pediatric Neurology Department, National Neuroscience Institute, King Fahad Medical City, Riyadh, Saudi Arabia
| | - M Alfadhel
- Department of Pediatrics, King Saud bin Abdulaziz University for Health Science, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - W Eyaid
- Department of Pediatrics, King Saud bin Abdulaziz University for Health Science, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - A Hashem
- Department of Pediatrics, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - A Al Asmari
- Department of Pediatric Subspecialties, Children's Hospital, King Fahad Medical City, Riyadh, Saudi Arabia
| | - M M Saleh
- Department of Pediatric Subspecialties, Children's Hospital, King Fahad Medical City, Riyadh, Saudi Arabia
| | - A AlSaman
- Pediatric Neurology Department, National Neuroscience Institute, King Fahad Medical City, Riyadh, Saudi Arabia
| | - K A Alhasan
- Department of Pediatrics, College of Medicine & King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - M Alsughayir
- Department of Psychiatry, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - M Al Shammari
- Department of Pediatrics, College of Medicine & King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - A Mahmoud
- Pediatric Neurology Department, National Neuroscience Institute, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Z N Al-Hassnan
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - M Al-Husain
- Department of Pediatrics, College of Medicine & King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - R Osama Khalil
- Department of Psychiatry, University of California, San Francisco, San Francisco, CA, USA.,National Research Center, Cairo, Egypt
| | | | - A Masri
- Department of Pediatrics, Faculty of Medicine, The University of Jordan, Amman, Jordan
| | - R Ali
- Clinical & Metabolic Genetics, Pediatrics, Hamad Medical Corporation, Doha, Qatar
| | - T Ben-Omran
- Clinical & Metabolic Genetics, Pediatrics, Hamad Medical Corporation, Doha, Qatar
| | - P El Fishway
- Department of Neurosurgery, Program on Neurogenetics, Yale University School of Medicine, New Haven, CT, USA
| | - A Hashish
- National Research Center, Cairo, Egypt
| | - A Ercan Sencicek
- Department of Neurosurgery, Program on Neurogenetics, Yale University School of Medicine, New Haven, CT, USA
| | - M State
- Department of Psychiatry, University of California, San Francisco, San Francisco, CA, USA
| | - A M Alazami
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - M A Salih
- Department of Pediatrics, College of Medicine & King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - N Altassan
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - S T Arold
- King Abdullah University of Science and Technology (KAUST), Computational Bioscience Research Center (CBRC), Division of Biological and Environmental Sciences and Engineering (BESE), Thuwal, Saudi Arabia
| | - M Abouelhoda
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - S M Wakil
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - D Monies
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - R Shaheen
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - F S Alkuraya
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia.,Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
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11
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Cox KL, Sharma N, Leaver A, Lim A, Mills P, Weeks J, Sever A, Hashem M, DeSilva T. Abstract P2-01-34: Identification and biopsy of sentinel lymph nodes using intradermal microbubbles and contrast-enhanced ultrasound (CEUS) in pre-operative breast cancer patients: Early collective experience of the UK Microbubble Group. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p2-01-34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was withdrawn by the authors.
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Affiliation(s)
- KL Cox
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; Leeds Teaching Hospital NHS Trust, Leeds, Yorkshire, United Kingdom; Queen Elizabeth Hospital Gateshead, Gateshead, Tyne and Wear, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
| | - N Sharma
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; Leeds Teaching Hospital NHS Trust, Leeds, Yorkshire, United Kingdom; Queen Elizabeth Hospital Gateshead, Gateshead, Tyne and Wear, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
| | - A Leaver
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; Leeds Teaching Hospital NHS Trust, Leeds, Yorkshire, United Kingdom; Queen Elizabeth Hospital Gateshead, Gateshead, Tyne and Wear, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
| | - A Lim
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; Leeds Teaching Hospital NHS Trust, Leeds, Yorkshire, United Kingdom; Queen Elizabeth Hospital Gateshead, Gateshead, Tyne and Wear, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
| | - P Mills
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; Leeds Teaching Hospital NHS Trust, Leeds, Yorkshire, United Kingdom; Queen Elizabeth Hospital Gateshead, Gateshead, Tyne and Wear, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
| | - J Weeks
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; Leeds Teaching Hospital NHS Trust, Leeds, Yorkshire, United Kingdom; Queen Elizabeth Hospital Gateshead, Gateshead, Tyne and Wear, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
| | - A Sever
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; Leeds Teaching Hospital NHS Trust, Leeds, Yorkshire, United Kingdom; Queen Elizabeth Hospital Gateshead, Gateshead, Tyne and Wear, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
| | - M Hashem
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; Leeds Teaching Hospital NHS Trust, Leeds, Yorkshire, United Kingdom; Queen Elizabeth Hospital Gateshead, Gateshead, Tyne and Wear, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
| | - T DeSilva
- Maidstone and Tunbridge Wells NHS Trust, Maidstone, Kent, United Kingdom; Leeds Teaching Hospital NHS Trust, Leeds, Yorkshire, United Kingdom; Queen Elizabeth Hospital Gateshead, Gateshead, Tyne and Wear, United Kingdom; Imperial College Healthcare NHS Trust, London, United Kingdom
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12
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Kelmemi W, Teeuw ME, Bochdanovits Z, Ouburg S, Jonker MA, Alkuraya F, Hashem M, Kayserili H, van Haeringen A, Sheridan E, Masri A, Cobben JM, Rizzu P, Kostense PJ, Dommering CJ, Henneman L, Bouhamed-Chaabouni H, Heutink P, Ten Kate LP, Cornel MC. Determining the genome-wide kinship coefficient seems unhelpful in distinguishing consanguineous couples with a high versus low risk for adverse reproductive outcome. BMC Med Genet 2015; 16:50. [PMID: 26188928 PMCID: PMC4557855 DOI: 10.1186/s12881-015-0191-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 06/17/2015] [Indexed: 11/25/2022]
Abstract
Background Offspring of consanguineous couples are at increased risk of congenital disorders. The risk increases as parents are more closely related. Individuals that have the same degree of relatedness according to their pedigree, show variable genomic kinship coefficients. To investigate whether we can differentiate between couples with high- and low risk for offspring with congenital disorders, we have compared the genomic kinship coefficient of consanguineous parents with a child affected with an autosomal recessive disorder with that of consanguineous parents with only healthy children, corrected for the degree of pedigree relatedness. Methods 151 consanguineous couples (73 cases and 78 controls) from 10 different ethnic backgrounds were genotyped on the Affymetrix platform and passed quality control checks. After pruning SNPs in linkage disequilibrium, 57,358 SNPs remained. Kinship coefficients were calculated using three different toolsets: PLINK, King and IBDelphi, yielding five different estimates (IBDelphi, PLINK (all), PLINK (by population), King robust (all) and King homo (by population)). We performed a one-sided Mann Whitney test to investigate whether the median relative difference regarding observed and expected kinship coefficients is bigger for cases than for controls. Furthermore, we fitted a mixed effects linear model to correct for a possible population effect. Results Although the estimated degrees of genomic relatedness with the different toolsets show substantial variability, correlation measures between the different estimators demonstrated moderate to strong correlations. Controls have higher point estimates for genomic kinship coefficients. The one-sided Mann Whitney test did not show any evidence for a higher median relative difference for cases compared to controls. Neither did the regression analysis exhibit a positive association between case–control status and genomic kinship coefficient. Conclusions In this case–control setting, in which we compared consanguineous couples corrected for degree of pedigree relatedness, a higher degree of genomic relatedness was not significantly associated with a higher likelihood of having an affected child. Further translational research should focus on which parts of the genome and which pathogenic mutations couples are sharing. Looking at relatedness coefficients by determining genome-wide SNPs does not seem to be an effective measure for prospective risk assessment in consanguineous parents. Electronic supplementary material The online version of this article (doi:10.1186/s12881-015-0191-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- W Kelmemi
- Laboratory of Human Genetics, Faculty of Medicine, University of Tunis El Manar, Tunis, Tunisia
| | - M E Teeuw
- Department of Clinical Genetics, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands.,EMGO Institute for Health and Care Research, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands
| | - Z Bochdanovits
- Department of Clinical Genetics, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands
| | - S Ouburg
- Laboratory of Immunogenetics, Medical Microbiology and Infection Control, Research School V-ICI, VU University Medical Center, Amsterdam, The Netherlands
| | - M A Jonker
- Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands
| | - F Alkuraya
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - M Hashem
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - H Kayserili
- Medical Genetics Department, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - A van Haeringen
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands.,Juliana Children's Hospital, Hague, The Netherlands
| | - E Sheridan
- Bradford Institute for Health Research, Bradford Royal Infirmary, Bradford, UK.,Department of Genetics, Wellcome Trust Brenner Building, St James's University Hospital, Leeds, UK
| | - A Masri
- Division of Child Neurology, Department of Pediatrics, University of Jordan, Amman, Jordan
| | - J M Cobben
- Department of Pediatric Genetics, AMC University Hospital, Amsterdam, The Netherlands
| | - P Rizzu
- Department of Clinical Genetics, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands.,Genome Biology of Neurodegenerative Diseases, German Center for Neurodegenerative Diseases, Tübingen, Germany
| | - P J Kostense
- Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, The Netherlands
| | - C J Dommering
- Department of Clinical Genetics, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands
| | - L Henneman
- Department of Clinical Genetics, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands.,EMGO Institute for Health and Care Research, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands
| | - H Bouhamed-Chaabouni
- Laboratory of Human Genetics, Faculty of Medicine, University of Tunis El Manar, Tunis, Tunisia
| | - P Heutink
- Department of Clinical Genetics, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands.,Genome Biology of Neurodegenerative Diseases, German Center for Neurodegenerative Diseases, Tübingen, Germany
| | - L P Ten Kate
- Department of Clinical Genetics, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands.,EMGO Institute for Health and Care Research, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands
| | - M C Cornel
- Department of Clinical Genetics, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands. .,EMGO Institute for Health and Care Research, VU University Medical Center, Mail BS7, D450, P.O. Box 7057, 1007 MB, Amsterdam, The Netherlands.
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Hashem M, Taleb MA, El-Shall F, Haggag K. New prospects in pretreatment of cotton fabrics using microwave heating. Carbohydr Polym 2014; 103:385-91. [DOI: 10.1016/j.carbpol.2013.11.064] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/01/2013] [Accepted: 11/27/2013] [Indexed: 11/25/2022]
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Hashem M, Sharaf S, Abd El-Hady M, Hebeish A. Synthesis and characterization of novel carboxymethylcellulose hydrogels and carboxymethylcellulolse-hydrogel-ZnO-nanocomposites. Carbohydr Polym 2013; 95:421-7. [DOI: 10.1016/j.carbpol.2013.03.013] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2012] [Revised: 02/28/2013] [Accepted: 03/02/2013] [Indexed: 10/27/2022]
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Shiraishi Y, Yambe T, Yoshizawa M, Hashimoto H, Yamada A, Miura H, Hashem M, Kitano T, Shiga T, Homma D. Examination of mitral regurgitation with a goat heart model for the development of intelligent artificial papillary muscle. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2012:6649-52. [PMID: 23367454 DOI: 10.1109/embc.2012.6347519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Annuloplasty for functional mitral or tricuspid regurgitation has been made for surgical restoration of valvular diseases. However, these major techniques may sometimes be ineffective because of chamber dilation and valve tethering. We have been developing a sophisticated intelligent artificial papillary muscle (PM) by using an anisotropic shape memory alloy fiber for an alternative surgical reconstruction of the continuity of the mitral structural apparatus and the left ventricular myocardium. This study exhibited the mitral regurgitation with regard to the reduction in the PM tension quantitatively with an originally developed ventricular simulator using isolated goat hearts for the sophisticated artificial PM. Aortic and mitral valves with left ventricular free wall portions of isolated goat hearts (n=9) were secured on the elastic plastic membrane and statically pressurized, which led to valvular leaflet-papillary muscle positional change and central mitral regurgitation. PMs were connected to the load cell, and the relationship between the tension of regurgitation and PM tension were measured. Then we connected the left ventricular specimen model to our hydraulic ventricular simulator and achieved hemodynamic simulation with the controlled tension of PMs.
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Affiliation(s)
- Y Shiraishi
- Department of Medical Engineering and Cardiology, Institute of Development and Cancer, Tohoku University, Sendai 980-8575, Japan.
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Affiliation(s)
- A. Hebeish
- National Research Centre, Textile Research Division, Dokki, Cairo, Egypt
| | - M. A. Ramadan
- National Research Centre, Textile Research Division, Dokki, Cairo, Egypt
| | - M. Hashem
- National Research Centre, Textile Research Division, Dokki, Cairo, Egypt
| | - B. Sadek
- Faculty of science for Girls, Al-Azhar University, Egypt
| | - M. Abdel-Hady
- National Research Centre, Textile Research Division, Dokki, Cairo, Egypt
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Hebeish A, Hashem M, El-Hady MA, Sharaf S. Development of CMC hydrogels loaded with silver nano-particles for medical applications. Carbohydr Polym 2013; 92:407-13. [DOI: 10.1016/j.carbpol.2012.08.094] [Citation(s) in RCA: 214] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 08/07/2012] [Accepted: 08/25/2012] [Indexed: 11/30/2022]
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Shamji M, Moon ES, Glennie R, Soroceanu A, Lin C, Bailey C, Simmonds A, Fehlings M, Dodwell E, Dold A, El-Hawary R, Hashem M, Dold A, Dold A, Jones S, Bailey C, Karadimas S, Whitehurst D, Norton J, Norton J, Manson N, Kesani A, Bednar D, Lundine K, Hartig D, Fichadi A, Fehlings M, Kim S, Harris S, Lin C, Gill J, Abraham E, Shamji M, Choi S, Goldstein C, Wang Z, McCabe M, Noonan V, Nadeau M, Ferrara S, Kelly A, Melnyk A, Arora D, Quateen A, Dea N, Ranganathan A, Zhang Y, Casha S, Rajamanickam K, Santos A, Santos A, Wilson J, Wilson J, Street J, Wilson J, Lewis R, Noonan V, Street J, El-Hawary R, Egge N, Lin C, Schouten R, Lin C, Kim A, Kwon B, Huang E, Hwang P, Allen K, Jing L, Mata B, Gabr M, Richardson W, Setton L, Karadimas S, Fehlings M, Fleming J, Bailey C, Gurr K, Bailey S, Siddiqi F, Lawendy A, Sanders D, Staudt M, Canacari E, Brown E, Robinson A, McGuire K, Chrysostoum C, Rampersaud YR, Dvorak M, Thomas K, Boyd M, Gurr K, Bailey S, Nadeau M, Fisher C, Batke J, Street J, Boyd M, Dvorak M, Fisher C, Kwon B, Paquette S, Vaccaro A, Chapman J, Arnold P, Shaffrey C, Kopjar B, Snyder B, Wright J, Lewis S, Zeller R, El-Hawary R, Moroz P, Bacon S, Jarzem P, Hedden D, Howard J, Sturm P, Cahill P, Samdani A, Vitale M, Gabos P, Bodin N, d’Amato C, Harris C, Smith J, Parent E, Hill D, Hedden D, Moreau M, Mahood J, Lewis S, Bodrogi A, Abbas H, Goldstein S, Bronstein Y, Bacon S, Chua S, Magana S, Van Houwelingen A, Halpern E, Jhaveri S, Lewis S, Lim A, Leelapattana P, Fleming J, Siddiqqi F, Bailey S, Gurr K, Moon ES, Satkunendrarajah K, Fehlings M, Noonan V, Dvorak M, Bryan S, Aronyk K, Fox R, Nataraj A, Pugh J, Elliott R, McKeon M, Abraham E, Fleming J, Gurr K, Bailey S, Siddiqi F, Bailey C, Davis G, Rogers M, Staples M, Quan G, Batke J, Boyd M, Dvorak M, Fisher C, Kwon B, Paquette S, Street J, Shamji M, Hurlbert R, Jacobs W, Duplessis S, Casha S, Jha N, Hewson S, Massicotte E, Kopjar B, Mortaz S, Coyte P, Rampersaud Y, Rampersaud Y, Goldstein S, Andrew B, Modi H, Magana S, Lewis S, Roffey D, Miles I, Wai E, Manson N, Eastwood D, Elliot R, McKeon M, Bains I, Yong E, Sutherland G, Hurlbert R, Rampersaud Y, Chan V, Persaud O, Koshkin A, Brull R, Hassan N, Petis S, Kowalczuk M, Petrisor B, Drew B, Bhandari M, DiPaola C, Boyd M, Dvorak M, Fisher C, Kwon B, Paquette S, Street J, McLachlin S, Bailey S, Gurr K, Bailey C, Dunning C, Fehlings M, Vaccaro A, Wing P, Itshayek E, Biering-Sorensen F, Dvorak M, McLachlin S, Bailey S, Gurr K, Dunning C, Bailey C, Bradi A, Pokrupa R, Batke J, Boyd M, Dvorak M, Fisher C, Kwon B, Paquette S, Street J, Kelly A, Wen T, Kingwell S, Chak J, Singh V, Cripton P, Fisher C, Dvorak M, Oxland T, Wali Z, Yen D, Alfllouse A, Alzahrani A, Jiang H, Mahood J, Kortbeek F, Fox R, Nataraj A, Street J, Boyd M, Paquette S, Kwon B, Batke J, Dvorak M, Fisher C, Reddy R, Rampersaud R, Hurlbert J, Yong W, Casha S, Zygun D, McGowan D, Bains I, Yong V, Hurlbert R, Mendis B, Chakraborty S, Nguyen T, Tsai E, Chen A, Atkins D, Noonan V, Drew B, Tsui D, Townson A, Dvorak M, Chen A, Atkins D, Noonan V, Drew B, Dvorak M, Craven C, Ford M, Ahn H, Drew B, Fehlings M, Kiss A, Vaccaro A, Harrop J, Grossman R, Frankowski R, Guest J, Dvorak M, Aarabi B, Fehlings M, Noonan V, Cheung A, Sun B, Dvorak M, Vaccaro A, Harrop J, Massicotte E, Dvorak M, Fisher C, Rampersaud R, Lewis S, Fehlings M, Marais L, Noonan V, Queyranne M, Fehlings M, Dvorak M, Atkins D, Hurlbert R, Fox R, Fourney D, Johnson M, Fehlings M, Ahn H, Ford M, Yee A, Finkelstein J, Tsai E, Bailey C, Drew B, Paquet J, Parent S, Christie S, Dvorak M, Noonan V, Cheung A, Sun B, Dvorak M, Sturm P, Cahill P, Samdani A, Vitale M, Gabos P, Bodin N, d’Amato C, Harris C, Smith J, Lange J, DiPaola C, Lapinsky A, Connolly P, Eck J, Rabin D, Zeller R, Lewis S, Lee R, Boyd M, Dvorak M, Fisher C, Kwon B, Paquette S, DiPaola C, Street J, Bodrogi A, Goldstein S, Sofia M, Lewis S, Shin J, Tung K, Ahn H, Lee R, Batke J, Ghag R, Noonan V, Dvorak M, Goyal T, Littlewood J, Bains I, Cho R, Thomas K, Swamy G. Canadian Spine Society abstracts1.1.01 Supraspinal modulation of gait abnormalities associated with noncompressive radiculopathy may be mediated by altered neurotransmitter sensitivity1.1.02 Neuroprotective effects of the sodium-glutamate blocker riluzole in the setting of experimental chronic spondylotic myelopathy1.1.03 The effect of timing to decompression in cauda equina syndrome using a rat model1.2.04 Intraoperative waste in spine surgery: incidence, cost and effectiveness of an educational program1.2.05 Looking beyond the clinical box: the health services impact of surgical adverse events1.2.06 Brace versus no brace for the treatment of thoracolumbar burst fractures without neurologic injury: a multicentre prospective randomized controlled trial1.2.07 Adverse event rates in surgically treated spine injuries without neurologic deficit1.2.08 Functional and quality of life outcomes in geriatric patients with type II odontoid fracture: 1-year results from the AOSpine North America Multi-Center Prospective GOF Study1.3.09 National US practices in pediatric spinal fusion: in-hospital complications, length of stay, mortality, costs and BMP utilization1.3.10 Current trends in the surgical treatment of adolescent idiopathic scoliosis in Canada1.3.11 Sagittal spinopelvic parameters help predict the risk of proximal junctional kyphosis for children treated with posterior distraction-based implants1.4.12 Correlations between changes in surface topography and changes in radiograph measurements from before to 6 months after surgery in adolescents with idiopathic scoliosis1.4.13 High upper instrumented vertebra (UIV) sagittal angle is associated with UIV fracture in adult deformity corrections1.4.14 Correction of adult idiopathic scoliosis using intraoperative skeletal traction1.5.01 Cauda equina: using management protocols to reduce delays in diagnosis1.5.02 Predicting the need for tracheostomy in patients with acute traumatic spinal cord injury1.5.03 A novel animal model of cervical spondylotic myelopathy: an opportunity to identify new therapeutic targets1.5.04 A review of preference-based measures of health-related quality of life in spinal cord injury research1.5.05 Predicting postoperative neuropathic pain following surgery involving nerve root manipulation based on intraoperative electromyographic activity1.5.06 Detecting positional injuries in prone spinal surgery1.5.07 Percutaneous thoracolumbar stabilization for trauma: surgical morbidity, clinical outcomes and revision surgery1.5.08 Systemic inflammatory response syndrome in spinal cord injury patients: Does its presence at admission affect patient outcomes?2.1.15 One hundred years of spine surgery — a review of the evolution of our craft and practice in the spine surgical century [presentation]2.1.16 Prevalence of preoperative MRI findings of adjacent segment disc degeneration in patients undergoing anterior cervical discectomy and fusion2.1.17 Adverse event rates of surgically treated cervical spondylopathic myelopathy2.1.18 Morphometricand dynamic changes in the cervical spine following anterior cervical discectomy and fusion and cervical disc arthroplasty2.1.19 Is surgery for cervical spondylotic myelopathy cost-effective? A cost–utility analysis based on data from the AO Spine North American Prospective Multicentre CSM Study2.2.20 Cost–utility of lumbar decompression with or without fusion for patients with symptomatic degenerative lumbar spondylolisthesis (DLS)2.2.21 Minimally invasive surgery lumbar fusion for low-grade isthmic and degenerative spondylolisthesis: 2- to 5-year follow-up2.2.22 Results and complications of posterior-only reduction and fusion for high-grade spondylolisthesis2.3.23 Fusion versus no fusion in patients with central lumbar spinal stenosis and foraminal stenosis undergoing decompression surgery: comparison of outcomes at baseline and follow-up2.3.24 Two-year results of interspinous spacers (DIAM) as an alternative to arthrodesis for lumbar degenerative disorders2.3.25 Treatment of herniated lumbar disc by sequestrectomy or conventional discectomy2.4.26 No sustained benefit of continuous epidural analgesia for minimally invasive lumbar fusion: a randomized double-blinded placebo controlled study2.4.27 Evidence and current practice in the radiologic assessment of lumbar spine fusion2.4.28 Wiltse versus midline approach for decompression and fusion of the lumbar spine2.5.09 The effect of soft tissue restraints following type II odontoid fractures in the elderly — a biomechanical study2.5.10 Development of an international spinal cord injury (SCI) spinal column injury basic data set2.5.11 Evaluation of instrumentation techniques for a unilateral facet perch and fracture using a validated soft tissue injury model2.5.12 Decreasing neurologic consequences in patients with spinal infection: the testing of a novel diagnostic guideline2.5.13 Prospective analysis of adverse events in surgical treatment of degenerative spondylolisthesis2.5.14 Load transfer characteristics between posterior fusion devices and the lumbar spine under anterior shear loading: an in vitro investigation2.5.15 Preoperative predictive clinical and radiographic factors influencing functional outcome after lumbar discectomy2.5.16 A Thoracolumbar Injury Classification and Severity Score (TLICS) of 4: What should we really do?3.1.29 Adverse events in emergent oncologic spine surgery: a prospective analysis3.1.30 En-bloc resection of primary spinal and paraspinal tumours with critical vascular involvement3.1.31 The treatment impact of minocycline on quantitative MRI in acute spinal cord injury3.1.32 Benefit of minocycline in spinal cord injury — results of a double-blind randomized placebo-controlled study3.2.33 Improvement of magnetic resonance imaging correlation with unilateral motor or sensory deficits using diffusion tensor imaging3.2.34 Comparing care delivery for acute traumatic spinal cord injury in 2 Canadian centres: How do the processes of care differ?3.2.35 Improving access to early surgery: a comparison of 2 centres3.3.36 The effects of early surgical decompression on motor recovery after traumatic spinal cord injury: results of a Canadian multicentre study3.3.37 A clinical prediction model for long-term functional outcome after traumatic spinal cord injury based on acute clinical and imaging factors3.3.38 Effect of motor score on adverse events and quality of life in patients with traumatic spinal cord injury3.4.39 The impact of facet dislocation on neurologic recovery after cervical spinal cord injury: an analysis of data on 325 patients from the Surgical Trial in Acute Spinal Cord Injury Study (STASCIS)3.4.40 Toward a more precise understanding of the epidemiology of traumatic spinal cord injury in Canada3.4.41 Access to care (ACT) for traumatic SCI: a survey of acute Canadian spine centres3.4.42 Use of the Spine Adverse Events Severity (SAVES) instrument for traumatic spinal cord injury3.5.17 Does the type of distraction-based growing system for early onset scoliosis affect postoperative sagittal alignment?3.5.18 Comparison of radiation exposure during thoracolumbar fusion using fluoroscopic guidance versus anatomic placement of pedicle screws3.5.19 Skeletal traction for intraoperative reduction in adolescent idiopathic scoliosis3.5.20 Utility of intraoperative cone-beam computed tomography (O-ARM) and stereotactic navigation in acute spinal trauma surgery3.5.21 Use of a central compression rod to reduce thoracic level spinal osteotomies3.5.22 ICD-10 coding accuracy for spinal cord injured patients3.5.23 Feasibility of patient recruitment in acute SCI trials3.5.24 Treatment of adult degenerative scoliosis with DLIF approaches. Can J Surg 2012. [DOI: 10.1503/cjs.012212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Rasslan O, Hafez SF, Hashem M, Ahmed OI, Faramawy MAS, Khater WS, Saleh DA, Mohamed MI, Khalifa MAM, Shoukry FA, El-Moghazy EH. Microscopic observation drug susceptibility assay in the diagnosis of multidrug-resistant tuberculosis. Int J Tuberc Lung Dis 2012; 16:941-6. [PMID: 22584201 DOI: 10.5588/ijtld.11.0547] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Early detection of multidrug-resistant Mycobacterium tuberculosis (MDR-TB) is of primary importance for both patient management and infection control. Optimal methods for identifying MDR-TB in a timely and affordable manner in resource-limited settings are not yet available. OBJECTIVES To evaluate the performance of a low-technology but rapid drug susceptibility testing method, the microscopic observation drug susceptibility assay (MODS), in the concurrent detection of M. tuberculosis and its susceptibility to isoniazid (INH) and rifampin (RMP) directly from sputum specimens. METHODS A total of 115 smear-positive TB patients admitted to Abbasia Chest Hospital, Cairo, Egypt, were simultaneously tested using MODS and the BACTEC MGIT 960 mycobacterial detection system for the detection of M. tuberculosis and the identification of MDR-TB samples. RESULTS MODS detected 112 (97.4%) samples and BACTEC MGIT detected 115 (100%). Of the 115 isolates tested for susceptibility to INH, RMP and MDR-TB, complete agreement between MODS and MGIT results was found among respectively 92.9%, 95.5% and 97.3% of samples. The sensitivity, specificity, and positive and negative predictive values of MODS in the detection of MDR-TB were respectively 95.3%, 98.6%, 97.6% and 97.1%. MODS results were obtained in a median of 8 days (range 5-21). CONCLUSION MODS is an optimal alternative method for timely and affordable identification of MDR-TB in resource-limited settings.
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Affiliation(s)
- O Rasslan
- Department of Microbiology and Immunology, Ain Sham University, Faculty of Medicine, Cairo, Egypt
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Hashem M, Elshakankery M, El-Aziz SA, Fouda MM, Fahmy H. Improving easy care properties of cotton fabric via dual effect of ester and ionic crosslinking. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.06.085] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shaheen R, Al-Dirbashi OY, Al-Hassnan ZN, Al-Owain M, Makhsheed N, Basheeri F, Seidahmed MZ, Salih MAM, Faqih E, Zaidan H, Al-Sayed M, Rahbeeni Z, Al-Sheddi T, Hashem M, Kurdi W, Shimozawa N, Alkuraya FS. Clinical, biochemical and molecular characterization of peroxisomal diseases in Arabs. Clin Genet 2011; 79:60-70. [PMID: 20681997 DOI: 10.1111/j.1399-0004.2010.01498.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Peroxisomes are single membrane-bound cellular organelles that carry out critical metabolic reactions perturbation of which leads to an array of clinical phenotypes known as peroxisomal disorders (PD). In this study, the largest of its kind in the Middle East, we sought to comprehensively characterize these rare disorders at the clinical, biochemical and molecular levels. Over a 2-year period, we have enrolled 17 patients representing 16 Arab families. Zellweger-spectrum phenotype was observed in 12 patients and the remaining 5 had the rhizomelic chondrodysplasia punctata phenotype. We show that homozygosity mapping is a cost-effective strategy that enabled the identification of the underlying genetic defect in 100% of the cases. The pathogenic nature of the mutations identified was confirmed by immunofluorescence and complementation assays. We confirm the genetic heterogeneity of PD in our population, expand the pool of pathogenic alleles and draw some phenotype/genotype correlations.
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Affiliation(s)
- R Shaheen
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
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Ibrahim EH, Abdelwahab SF, Nady S, Hashem M, Galal G, Sobhy M, Saleh AS, Shata MT. Prevalence of anti-HEV IgM among blood donors in Egypt. Egypt J Immunol 2011; 18:47-58. [PMID: 23082470 DOI: pmid/23082470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Hepatitis E virus (HEV) is a common cause of acute viral hepatitis (AVH) in developing countries. In Egypt; where up to 80% of the inhabitants of rural villages have anti-HEV antibodies denoting past infection, most of these infections are asymptomatic with little evidence that the infection causes AVH. There are accumulating reports which suggest potential risk of HEV transmission by blood transfusion. However, detection of serological markers for HEV infection or HEV RNA in Egyptian blood banks is not routinely performed. 760 blood samples from apparently healthy donors at the National blood bank were tested for markers of acute HEV infection to estimate the seroprevalence of acute HEV infection, and potential risk of infection by blood transfusion. They included 124 females (16.82%) and 636 males (83.68%), with a mean age of 23.8 +/- 5.3 years and mean ALT value of 23.3 +/- 13.2 IU/ml. Samples were tested as pools of 10 subjects. Pools with highest reactivity were retested individually to determine the frequency of positive subjects. Out of the 760 samples, three (0.45%) samples were positive for anti-HEV IgM and two of them had HEV RNA as determined by RT-PCR. In conclusion, this study suggests that the tested blood donors have low prevalence of ongoing subclinical infection with HEV and that the potential risk of transfusion may be low.
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Affiliation(s)
- E H Ibrahim
- Blood Products Quality Control and Research Dept., National Organization for Research and Control of Biologicals, Cairo, Egypt
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Said M, El-Raziky MS, Abdel-Hamid M, Saad Y, Hashem M, Zakaria S, Mohamed MK, Esmat G. Impact of past HBV exposure on virological response to combined interferon ribavirin therapy in patients with chronic HCV genotype 4. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/ojim.2011.12010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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El-Karaksy H, Anwar GH, El-Raziky MS, El-Hawary M, Hashem M, El-Sayed R, El-Shabrawi M, Mohsen N, Fouad H, Esmat G. Anti-HCV prevalence among diabetic and non-diabetic Egyptian children. Curr Diabetes Rev 2010; 6:388-92. [PMID: 20879976 DOI: 10.2174/157339910793499137] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2010] [Accepted: 05/14/2010] [Indexed: 12/13/2022]
Abstract
Our aim was to determine the prevalence of the HCV infection among children with type 1 DM as compared to a group of non-diabetic children attending the general outpatient clinics of the same hospital and investigate the possible risk factors. The study was carried out on 692 children with type 1 DM attending the Pediatric Diabetes Unit at Cairo University Pediatric Hospital, Egypt, and 1042 non-diabetic children attending the general outpatient clinics of the same hospital. They were screened for HCV antibodies using third generation ELISA. Anti-HCV antibody prevalence in diabetic children below 9 years of age was comparable to that of non diabetic children (2.5% vs. 1.4%; p=0.25). Diabetic children had higher exposure to medical care (p=0.04); all diabetics were exposed to daily insulin injections and daily blood glucose monitoring. Non-diabetics had higher exposure to razors used by others (p=0.05) and higher rate of traditional hair cutting (p=0.05). To conclude, the prevalence of anti-HCV in diabetic children below 9 years of age was comparable to non diabetic children of the same age group. Application of standard precautions for infection control could successfully limit spread of HCV infection in our Pediatric Diabetes Unit, in a country with high HCV load as Egypt.
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Affiliation(s)
- H El-Karaksy
- Department of Pediatrics, Cairo University, Cairo, Egypt
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Osman A, Ali E, Hashem M, Mostafa M, Mekkawy I. Genotoxicity of two pathogenic strains of zoosporic fungi (Achlya klebsiana and Aphanomyces laevis) on erythrocytes of Nile tilapia Oreochromis niloticus niloticus. Ecotoxicol Environ Saf 2010; 73:24-31. [PMID: 19811832 DOI: 10.1016/j.ecoenv.2009.08.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2009] [Revised: 05/10/2009] [Accepted: 08/29/2009] [Indexed: 05/28/2023]
Abstract
In the present work we have described the genotoxic potential of two pathogenic strains of zoosporic fungi (Achlya klebsiana and Aphanomyces laevis) on erythrocytes of Nile tilapia Oreochromis niloticus niloticus for the first time by three complementary tests: micronucleus test (MN), nuclear lesions (NL) and comet assay (CA). The groups exposed to the zoosporic fungi subjected to the MN and NL test showed statistically significant differences in MN and NL frequencies with respect to the control one. Also, a significant increase (p<0.001) in micronuclei and nuclear lesions frequencies were recorded with the increase in exposure time. A correlation was observed between the frequencies of MN and NL, suggesting the importance for recording this anomaly in order to improve the information obtained with the MN test. Therefore, our results suggest that the nuclear lesions found here should be considered indicators of genotoxicity, in addition to the typical micronuclei forms. The result of the comet assay showed a significant difference in the percentages of the damaged DNA in the comet tail (%TDNA) of the treated groups comparing to the control. A significant (p<0.001) increase in the DNA damage of the treated groups with the increase in exposure time was recorded, confirming the results of the MN and the NL tests. The results of the current study will be useful for future work involving the biomonitoring of regions where Nile tilapia survive. These data allow us to consider O. niloticus niloticus as a good bioindicator of the effects of genotoxic agents that might be present in the aquatic habitat.
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Affiliation(s)
- A Osman
- Zoology Department, Faculty of Science, Al-Azhar University (Assiut Branch), 71524 Assiut, Egypt.
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Abu Safieh L, Aldahmesh MA, Shamseldin H, Hashem M, Shaheen R, Alkuraya H, Al Hazzaa SAF, Al-Rajhi A, Alkuraya FS. Clinical and molecular characterisation of Bardet-Biedl syndrome in consanguineous populations: the power of homozygosity mapping. J Med Genet 2009; 47:236-41. [PMID: 19858128 DOI: 10.1136/jmg.2009.070755] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Bardet-Biedl syndrome (BBS) is a ciliopathy with pleiotropic effect that manifests primarily as renal insufficiency, polydactyly, retinal dystrophy and obesity. The current phenotype-genotype correlation is insufficient to predict the likely causative mutation that makes sequencing of all 14 BBS genes an often necessary but highly complicated way to identify the underlying genetic defect in affected patients. In this study, homozygosity mapping is shown as a robust approach that is highly suited for genetically heterogeneous autosomal recessive disorders in populations in which consanguinity is prevalent. This approach allowed us to quickly identify seven novel mutations in seven families with BBS. Some of these mutations would have been missed by unguided routine sequencing, which suggests that missed mutations in known BBS genes could be more common than previously thought. This study, the largest to date on Saudi BBS families, also revealed interesting phenotypic aspects of BBS, including the first report of non-syndromic retinitis pigmentosa as a novel BBS phenotype.
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Affiliation(s)
- L Abu Safieh
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
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Mekawey HI, Abd El-Wahab MS, Hashem M. Novel Goal-Based Weapon Target Assignment Doctrine. Journal of Aerospace Computing, Information, and Communication 2009; 6:2-29. [DOI: 10.2514/1.34374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Hashem M, Isopescu S. 94. Intraoperative Measurements of Distance Between Greater Trochanter and Sciatic Nerve; Implication to Hashem's Approach to Sciatic Nerve Block. Reg Anesth Pain Med 2008. [DOI: 10.1136/rapm-00115550-200809001-00141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Shata MT, Barrett A, Shire NJ, Abdelwahab SF, Sobhy M, Daef E, El-Kamary SS, Hashem M, Engle RE, Purcell RH, Emerson SU, Strickland GT, Sherman KE. Characterization of hepatitis E-specific cell-mediated immune response using IFN-gamma ELISPOT assay. J Immunol Methods 2007; 328:152-61. [PMID: 17905301 PMCID: PMC2094100 DOI: 10.1016/j.jim.2007.08.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2007] [Revised: 08/09/2007] [Accepted: 08/29/2007] [Indexed: 02/08/2023]
Abstract
In developing countries, hepatitis E (HEV) and hepatitis A (HAV) are the major causes of acute viral hepatitis with similar feco-oral modes of transmission. In contrast to the high seroprevalence of hepatitis A infection, a low seroprevalence of HEV among children in endemic areas has been reported. These data suggest the possibility that silent HEV infection is undiagnosed by the current available methods. Many of the serological tests used for HEV diagnosis have poor specificity and are unable to differentiate among different genotypes of HEV. Moreover, the RT-PCR used for HEV isolation is only valid for a brief period during the acute stage of infection. Cell-mediated immune (CMI) responses are highly sensitive, and long lasting after sub-clinical infections as shown in HCV and HIV. Our objective was to develop a quantitative assay for cell-mediated immune (CMI) responses in HEV infection as a surrogate marker for HEV exposure in silent infection. Quantitative assessment of the CMI responses in HEV will also help us to evaluate the role of CMI in HEV morbidity. In this study, an HEV-specific interferon-gamma (IFN-gamma) ELISPOT assay was optimized to analyze HEV-specific CMI responses. We used peripheral blood mononuclear cells (PBMC) and sera from experimentally infected chimpanzees and from seroconverted and control human subjects to validate the assay. The HEV-specific IFN-gamma ELISPOT responses correlated strongly and significantly with anti-HEV ELISA positive/negative results (rho=0.73, p=0.02). Moreover, fine specificities of HEV-specific T cell responses could be identified using overlapping HEV ORF2 peptides.
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Affiliation(s)
- M T Shata
- Internal Medicine, Division of Digestive Diseases, University of Cincinnati, Cincinnati, OH 45267-0595, USA.
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Hashem M, Lewis R. Successful long-term treatment of a patient with long-standing Raynaud's disease by an extradural bupivacaine block. Anaesth Intensive Care 2007; 35:618-619. [PMID: 18020090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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Mohammadi A, Rezanour N, Ansari Dogaheh M, Ghorbani Bidkorbeh F, Hashem M, Walker RB. A stability-indicating high performance liquid chromatographic (HPLC) assay for the simultaneous determination of atorvastatin and amlodipine in commercial tablets. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 846:215-21. [PMID: 17010681 DOI: 10.1016/j.jchromb.2006.09.007] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2006] [Revised: 08/30/2006] [Accepted: 09/03/2006] [Indexed: 10/24/2022]
Abstract
A simple, rapid, precise and accurate isocratic reversed-phase stability-indicating HPLC method was developed and validated for the simultaneous determination of atorvastatin (AT) and amlodipine (AM) in commercial tablets. The method has shown adequate separation for AM, AT from their associated main impurities and their degradation products. Separation was achieved on a Perfectsil Target ODS-3, 5 microm, 250 mm x 4.6 mm i.d. column using a mobile phase consisting of acetonitrile-0.025 M NaH(2)PO(4) buffer (pH 4.5) (55:45, v/v) at a flow rate of 1 ml/min and UV detection at 237 nm. The drugs were subjected to oxidation, hydrolysis, photolysis and heat to apply stress conditions. The linearity of the proposed method was investigated in the range of 2-30 microg/ml (r=0.9994) for AT and 1-20 microg/ml (r=0.9993) for AM. The limits of detection were 0.65 microg/ml and 0.35 microg/ml for AT and AM, respectively. The limits of quantitation were 2 microg/ml and 1 microg/ml for AT and AM, respectively. Degradation products produced as a result of stress studies did not interfere with the detection of AT and AM and the assay can thus be considered stability-indicating.
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Affiliation(s)
- A Mohammadi
- Department of Drug and Food Control, Faculty of Pharmacy, Medical Sciences University of Tehran, Tehran, Iran.
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Hashem M, Cinà CS. Anaesthesia for surgical repair of thoracoabdominal aortic aneurysms. Acta Anaesthesiol Belg 2007; 58:45-54. [PMID: 17486924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Thoracoabdominal aortic aneurysms are one of the most challenging surgeries for the anaesthetists. They account for 10% of aneurysms of the aorta. A thorough understanding of pathophysiology, anatomy, and surgical interventions including extracorporeal circulation are essential to achieve a good outcome. Crawford classified them accorting to their their extent and location in 4 types. Patients with Crawford type II aneurysms are at greatest risk for paraplegia and renal failure from ischemia to the spinal cord and kidneys during cross-clamp. Neurologic and renal complications are significant for the most extensive forms of aneurysms. Mortality has improved over time as a consequence of either increased surgical experience, the adoption of a protocolized strategy for repair, or secular improvements in anaesthetic and intensive care treatment. Long-term survival after elective TAAA repair is excellent.
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Affiliation(s)
- M Hashem
- Senior Specialist Registrar, Singleton Hospital, Swansea, UK.
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Hebeish A, Hashem M, Abdel-Rahman A, El-Hilw ZH. Improving easy care nonformaldehyde finishing performance using polycarboxylic acids via precationization of cotton fabric. J Appl Polym Sci 2006. [DOI: 10.1002/app.22916] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Hashem M, Berlin K, Chesnut R, Durham N. Additions and Corrections - Novel Pyrazolo, Isoxazolo, and Thiazolo Steroidal Systems and Model Analogs Containing Dimethoxylaryl (or Dihydroxylaryl) Groups and Derivatives. Synthesis, Spectral Properties, and Biological Activity. J Med Chem 2004. [DOI: 10.1021/jm00234a607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hashem M, El-Aref AT, Refaie R. Cotton Fabric Bearing Cationic and β-Cyclodextrin Moieties: A Study of the Reaction Parameters. ACTA ACUST UNITED AC 2004. [DOI: 10.1108/rjta-08-02-2004-b010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Fayad IM, Hashem M, Hussein A, Zikri MA, Zikri MA, Santosham M. Comparison of soy-based formulas with lactose and with sucrose in the treatment of acute diarrhea in infants. Arch Pediatr Adolesc Med 1999; 153:675-80. [PMID: 10401799 DOI: 10.1001/archpedi.153.7.675] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVE To evaluate the effect of feeding infants a soy-based formula with lactose compared with a soy-based formula with sucrose during an acute diarrheal episode. PARTICIPANTS AND METHODS Two hundred boys, aged 3 to 18 months, who were admitted to the hospital with acute diarrhea and signs of dehydration were randomly assigned to receive a soy-based formula with lactose or sucrose after initial rehydration. Intake and output (stool, urine, and vomit) were measured and recorded every 3 hours until diarrhea resolved. RESULTS The stool output during the first 24 hours of maintenance therapy, the total stool output during maintenance therapy, and the stool output during the entire illness (measured in grams per kilograms) were significantly lower among patients who received the soy-based formula with sucrose (P<.05, P<.001, and P<.001, respectively) than among patients who received the soy-based formula with lactose. The duration of diarrhea was significantly shorter among patients who received the soy-based formula with sucrose (P<.001). The relative risk of being withdrawn from the study increased to 1.95 (95% confidence interval, 0.65-9.2) and the relative risk of recurrence of dehydration after feeding was initiated increased significantly to 3.49 (95% confidence interval, 1.1-9.6; P<.01) in the group receiving the soy-based formula with lactose. CONCLUSION During diarrheal episodes, feeding infants a soy-based formula with sucrose has a better outcome (lower stool output, shorter duration of diarrhea, and lower failure rates) than feeding infants a soy-based formula with lactose.
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Affiliation(s)
- I M Fayad
- Gastroenterology Unit, Hospital Abu El-Reeche, Cairo University, Egypt
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Abstract
Our objective was to determine the ability of several clinical signs of dehydration to distinguish among degrees of dehydration in infants with acute diarrhea. The design was a prospective cohort study in a pediatric referral hospital in Cairo, Egypt. Infant boys, 3-18 months old, with a history of acute diarrhea (5 or more watery stools per day for no more than 7 days) were eligible, except those with frank protein-energy malnutrition, serious nongastrointestinal illness, or being exclusively breast-fed. Several clinical signs of dehydration were assessed upon study entry. Subjects were then rehydrated with an oral rehydration solution and fed a standardized diet until diarrhea ceased (no watery or loose stools for 16 h). The main outcome measure was percent body weight gain at rehydration and at resolution of illness. Data from 135 subjects were available for analysis. Average (SD) rehydration phase duration was 5.2 (2.1) h, and average (SD) duration of illness was 54.5 (38) h. Multiple regression analysis selected prolonged skinfold, altered neurologic status, sunken eyes, and dry oral mucosa as the clinical signs that correlated best with percent dehydration (R2 for model 0.244, p < 0.001). Mean weight gain for the two assessment systems was 3.6-3.9% for mild, 4.9-5.3% for moderate, and 9.5-9.8% for severe dehydration. The most valid clinical signs of dehydration include prolonged skinfold, altered neurologic status, sunken eyes, and dry oral mucosa. Children with clinical signs of mild or moderate dehydration have fluid deficits on the order of 3 or 5% body weight, respectively.
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Affiliation(s)
- C Duggan
- Combined Program in Pediatric GI and Nutrition, Harvard Medical School, Boston, USA
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Santosham M, Fayad I, Abu Zikri M, Hussein A, Amponsah A, Duggan C, Hashem M, el Sady N, Abu Zikri M, Fontaine O. A double-blind clinical trial comparing World Health Organization oral rehydration solution with a reduced osmolarity solution containing equal amounts of sodium and glucose. J Pediatr 1996; 128:45-51. [PMID: 8551420 DOI: 10.1016/s0022-3476(96)70426-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE To compare the safety and efficacy of an oral rehydration solution (ORS) containing 75 mmol/L of sodium and glucose each with the standard World Health Organization (WHO) ORS among Egyptian children with acute diarrhea. METHODS One hundred ninety boys, aged 1 to 24 months, who were admitted to the hospital with acute diarrhea and signs of dehydration were randomly assigned to receive either standard ORS (311 mmol/L) or a reduced osmolarity ORS (245 mmol/L). Intake and output were measured every 3 hours. RESULTS In the group treated with reduced osmolarity ORS, the mean stool output during the rehydration phase was 36% lower (95% confidence interval, 1%, 100%) than in those treated with WHO ORS. The relative risk of vomiting during the rehydration phase was significantly lower in children treated with reduced osmolarity ORS (relative risk, 2.4; 95% confidence interval, 1.2, 4.8). During the maintenance phase, stool output, mean intake of food and ORS, duration of diarrhea, and weight gain were similar in the treatment groups. The relative risk of treatment failure (need for unscheduled administration of intravenous fluids) was significantly increased in children receiving standard WHO ORS (relative risk, 7.9; 95% confidence interval, 1.1, 60.9). The mean serum sodium concentration at 24 hours was significantly lower in children receiving the reduced osmolarity ORS solution (134 +/- 6 mEq/L) than in children receiving the standard WHO ORS (138 +/- 7 mEq/L) (p < 0.001). The relative risk of the development or worsening of hyponatremia was not increased in children given the reduced osmolarity ORS, and urine output was similar in the treatment groups. CONCLUSION The reduced osmolarity ORS has beneficial effects on the clinical course of acute diarrhea in children by reducing stool output, and the proportion of children with vomiting during the rehydration phase, and by reducing the need for supplemental intravenous therapy. These results provide support for the use of a reduced osmolarity ORS in children with acute noncholera diarrhea.
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Affiliation(s)
- M Santosham
- Department of International Health, Center for American Indian and Alaskan Native Health, Johns Hopkins University School of Hygiene and Public Health, Baltimore, Maryland, USA
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Abstract
OBJECTIVE To assess the efficacy and safety of labetalol compared with methyldopa in the management of mild and moderate cases of pregnancy-induced hypertension (PIH). METHODS One hundred four primigravidas with PIH were randomly allocated to receive either labetalol (group A) or methyldopa (group B). The dose of the drugs was doubled every 48 h to maintain a mean arterial blood pressure < or = 103.6 mmHg. Clinico-biochemical effects and frequency of side effects were studied. The statistical level of significance was taken at P < 0.05. RESULTS Ten patients in group B (18.5%) developed significant proteinuria (> 30 mg/dl) whereas none developed proteinuria in group A. Labetalol was quicker and more efficient at controlling blood pressure, having a beneficial effect on renal functions and causing fewer side effects compared with methyldopa. The rate of induction of labor and rate of cesarean section for uncontrolled PIH was less in group A (48% and 1%, respectively) compared with group B (63.0% and 5.6%, respectively). Moreover a higher Bishop score at induction of labor was noticed in group A. CONCLUSIONS Labetalol is better tolerated than methyldopa, gives more efficient control of blood pressure and may have a ripening effect on the uterine cervix.
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Affiliation(s)
- A M el-Qarmalawi
- Department of Obstetrics and Gynecology, Al-Jahra Hospital, Jahra, Kuwait
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Fayad IM, Hashem M, Duggan C, Refat M, Bakir M, Fontaine O, Santosham M. Comparative efficacy of rice-based and glucose-based oral rehydration salts plus early reintroduction of food. Lancet 1993; 342:772-5. [PMID: 8103876 DOI: 10.1016/0140-6736(93)91540-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The use of oral rehydration salts (ORS) to restore fluid balance in children with diarrhoea is universally accepted. However, there is uncertainty about whether glucose-based ORS or ORS based on precooked rice powder is more effective. In a randomised trial we compared the two types of ORS in children who were given food immediately after completion of rehydration. 460 boys aged 3-18 months, admitted to hospital with acute diarrhoea and signs of dehydration, were randomly assigned to groups receiving rice-based and glucose-based ORS solution (230 to each group). After full rehydration (4-12 h), a weaning food consisting of rice and mixed vegetables was given until the diarrhoea stopped. Continuing losses of liquid stool and vomitus were replaced with the assigned ORS solution. There were no differences between the groups during the rehydration phase in stool volume, volume of ORS solution taken, duration of rehydration phase, or weight gain. However, after initiation of feeding, the glucose-based ORS group had significantly lower stool volumes than the rice-based ORS group (142 [95% CI 117-173] vs 96 [77-120] g/kg); they also took a smaller amount of ORS solution (153 [127-185] vs 111 [90-136] mL/kg) and had a shorter duration of diarrhoea (55 [SD 35] vs 44 [35] h). Glucose-based ORS solution was more effective than rice-based ORS solution for the treatment of diarrhoea in children when feeding with a rice-based diet was started soon after correction of dehydration. These results support the continued recommendation of glucose-based ORS solution as standard therapy for treatment of children with acute diarrhoea and emphasize the importance of resuming feeding as soon as dehydration has been corrected.
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Affiliation(s)
- I M Fayad
- Hospital Abu El Reeche, Gastroenterology Department, Cairo University, Egypt
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Santosham M, Fayad IM, Hashem M, Goepp JG, Refat M, Sack RB. A comparison of rice-based oral rehydration solution and "early feeding" for the treatment of acute diarrhea in infants. J Pediatr 1990; 116:868-75. [PMID: 2112187 DOI: 10.1016/s0022-3476(05)80642-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To compare the use of rice-based oral rehydration solution (R-ORS), with the introduction of food immediately after rehydration ("early feeding"), using standard glucose-based oral rehydration solution (G-ORS) in the management of acute diarrhea, we conducted a four-cell randomized, controlled trial among 200 hospitalized Egyptian infants between 3 and 18 months of age. During the rehydration phase (first 4 hours), three groups were given G-ORS and a fourth group was given R-ORS. During the subsequent maintenance phase, the control group was given a soy-based, lactose-free formula (G-ORS + SF), a second group (G-ORS + RF) was given a rice-based formula, and a third group (G-ORS + rice) was given boiled rice. The fourth group (R-ORS + SF) continued to receive R-ORS for the first 24 hours of the maintenance period, followed by a soy-based lactose-free formula. During the first and second 24 hours of the maintenance period, infants in the three treatment groups had a lower mean stool output in comparison with the control group (p = 0.006 and 0.03, respectively). The mean total stool output in the R-ORS + SF group was significantly lower than in the control group (p = 0.02). There were no statistically significant differences among the four groups in the mean duration of diarrhea. We conclude that (1) infants who were given R-ORS had reduced total stool output (by 35%) compared with the control group and (2) feeding of boiled rice or a rice-based formula immediately after rehydration therapy was as efficacious as treatment with R-ORS alone for 24 hours, followed by feeding with a soy-based, lactose-free formula.
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Affiliation(s)
- M Santosham
- Department of International Health, Johns Hopkins University School of Hygiene and Public Health, Baltimore, MD 21205
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Elgebaly SA, Gillies C, Forouhar F, Hashem M, Baddour M, O'Rourke J, Kreutzer DL. An in vitro model of leukocyte mediated injury to the corneal epithelium. Curr Eye Res 1985; 4:31-41. [PMID: 3979090 DOI: 10.3109/02713688508999964] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
To enhance efforts directed at unraveling the role and mechanisms of leukocytes in mediating injury to corneal epithelium, an isolated bovine corneal cup was developed and evaluated. Bovine peripheral leukocytes and lysates were added to the corneal epithelial surface of isolated cornea for various periods after which the degree of morphologic changes and cell damage were assessed using light and electron microscopy. Results of these studies indicate that leukocyte/epithelial cell interactions are characterized by five successive stages: (1) leukocyte adhesion to superficial layer of the epithelium, (2) leukocyte penetration beneath the superficial epithelium, (3) epithelial cell injury, (4) leukocyte phagocytosis of killed epithelial cells and (5) ulceration and total destruction of the full thickness of the epithelial layer. The above sequence appears to be both time and dose dependent; that is epithelial cells exposed to leukocytes for short periods (5-60 minutes) or to low dose levels (10(5) - 10(7) cells/ml) shows leukocyte adhesion and penetration beneath the superficial layer of the epithelium, (stage 1 and 2), while longer exposures (2-3 hours) or higher numbers of leukocytes (10(7) - 10(8) cells/ml), leads to deeper penetration of epithelium by leukocytes and epithelial injury (Stages 3,4,and 5). We also observed that direct contact of intact leukocytes with epithelial cells is apparently necessary to induce this type of injury. These findings demonstrate the ability of leukocytes to destroy corneal epithelial cells and the value of this new ocular model for studies of the basic immunology of ocular inflammation.
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Hashem M, Diab A. Some physiological studies on Streptomyces nasri sp. nov. from the desert of Kuwait. Zentralbl Bakteriol Parasitenkd Infektionskr Hyg 1973; 128:356-62. [PMID: 4801284 DOI: 10.1016/s0044-4057(73)80021-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Hashem M, al-Gounaim MY. Some studies on the soil bacteria in the desert of Kuwait. Zentralbl Bakteriol Parasitenkd Infektionskr Hyg 1973; 128:363-8. [PMID: 4801285 DOI: 10.1016/s0044-4057(73)80022-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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