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Etesami M, Mohamed N. Preparation of Pt/MWCNTs Catalyst by Taguchi Method for Electrooxidation of Nitrite. JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1134/s1061934816020040] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Rasmuson J, Pourazar J, Mohamed N, Lejon K, Evander M, Blomberg A, Ahlm C. Cytotoxic immune responses in the lungs correlate to disease severity in patients with hantavirus infection. Eur J Clin Microbiol Infect Dis 2016; 35:713-21. [PMID: 26873376 PMCID: PMC4819462 DOI: 10.1007/s10096-016-2592-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 01/19/2016] [Indexed: 12/14/2022]
Abstract
Hantavirus infections may cause severe and sometime life-threatening lung failure. The pathogenesis is not fully known and there is an urgent need for effective treatment. We aimed to investigate the association between pulmonary viral load and immune responses, and their relation to disease severity. Bronchoscopy with sampling of bronchoalveolar lavage (BAL) fluid was performed in 17 patients with acute Puumala hantavirus infection and 16 healthy volunteers acting as controls. Lymphocyte subsets, granzyme concentrations, and viral load were determined by flow cytometry, enzyme-linked immunosorbent assay (ELISA), and quantitative reverse transcription polymerase chain reaction (RT-PCR), respectively. Analyses of BAL fluid revealed significantly higher numbers of activated CD8+ T cells and natural killer (NK) cells, as well as higher concentrations of the cytotoxins granzymes A and B in hantavirus-infected patients, compared to controls. In patients, Puumala hantavirus RNA was detected in 88 % of BAL cell samples and correlated inversely to the T cell response. The magnitude of the pulmonary cytotoxic lymphocyte response correlated to the severity of disease and systemic organ dysfunction, in terms of need for supplemental oxygen treatment, hypotension, and laboratory data indicating renal failure, cardiac dysfunction, vascular leakage, and cell damage. Regulatory T cell numbers were significantly lower in patients compared to controls, and may reflect inadequate immune regulation during hantavirus infection. Hantavirus infection elicits a pronounced cytotoxic lymphocyte response in the lungs. The magnitude of the immune response was associated with disease severity. These results give insights into the pathogenesis and possibilities for new treatments.
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Mohamed N, Badr YA, El-Kader KMA. PVA-Coumarin Films: Materials for Optical Applications. JOURNAL OF COMPOSITES AND BIODEGRADABLE POLYMERS 2015; 3:41-45. [DOI: 10.12974/2311-8717.2015.03.02.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Pure Poly(vinylacohol) (PVA) and PVA-coum films with different concentrations were prepared by a casting technique. Optical absorption and mechanical properties were measured. The UV–Vis absorption spectra gave the same band positions but the absorption intensity increases with increasing coumarin concentration. The dependence of the absorption coefficient on the photon energy has been determined and the energy gaps and band tails were calculated. The topography of the surface was measured by atomic force microscope (AFM). It was found that Young’s modulus, the strength at the break and the band tail increase while the optical gaps for PVA-coum films decrease. RMS roughness of the surface for prepared films decreases as the coumarin concentration is increased. The obtained results illustrated that this material has promising applications in optical industries.
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Zaky E, Fouda E, Nabih E, Youssef O, Mohamed N. Assessment of the Impact of Secondhand Smoking On Children’s Mental Health; an Egyptian Study. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)31927-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Alam MM, Hasnat MA, Rashed MA, Uddin SMN, Rahman MM, Amertharaj S, Ahmed N, Mohamed N. Nitrate detection activity of Cu particles deposited on pencil graphite by fast scan cyclic voltammetry. JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1134/s1061934815010037] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Amertharaj S, Hasnat M, Mohamed N. Electroreduction of nitrate ions at a platinum-copper electrode in an alkaline medium: Influence of sodium inositol phytate. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.05.128] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mohamed N, Naidoo S. A review of child abuse and the role of the dental team in South Africa. SADJ : JOURNAL OF THE SOUTH AFRICAN DENTAL ASSOCIATION = TYDSKRIF VAN DIE SUID-AFRIKAANSE TANDHEELKUNDIGE VERENIGING 2014; 69:250-256. [PMID: 26548199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Hasnat M, Rashed M, Ben Aoun S, Uddin SN, Saiful Alam M, Amertharaj S, Majumder R, Mohamed N. Dissimilar catalytic trails of nitrate reduction on Cu-modified Pt surface immobilized on H+ conducting solid polymer. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2013.12.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Stander S, Mulder-Van Staden S, Cheung TY, Dreyer WP, Mohamed N, Afrogheh A. Oral medicine case book 52: pleomorphic adenoma of the upper lip. SADJ : JOURNAL OF THE SOUTH AFRICAN DENTAL ASSOCIATION = TYDSKRIF VAN DIE SUID-AFRIKAANSE TANDHEELKUNDIGE VERENIGING 2013; 68:328-330. [PMID: 24133952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Mohamed N, Smit DP. Anti-allergic ophthalmic drugs in general practice: which, why and when? S Afr Fam Pract (2004) 2013. [DOI: 10.1080/20786204.2013.10874367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Stander S, Holmes H, Dreyer WP, Afrogheh A, Mohamed N, Hille J, Osman N. Oral medicine case book 49: Plasmablastic lymphoma. SADJ : JOURNAL OF THE SOUTH AFRICAN DENTAL ASSOCIATION = TYDSKRIF VAN DIE SUID-AFRIKAANSE TANDHEELKUNDIGE VERENIGING 2013; 68:184-186. [PMID: 23971300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Hudson APG, Harris AMP, Mohamed N, Joubert J. Use of the passive lower lingual arch in the management of anterior mandibular crowding in the mixed dentition. SADJ : JOURNAL OF THE SOUTH AFRICAN DENTAL ASSOCIATION = TYDSKRIF VAN DIE SUID-AFRIKAANSE TANDHEELKUNDIGE VERENIGING 2013; 68:114-119. [PMID: 23951775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Leeway space preservation in the mixed dentition is a well-documented method of space management. In the mandibular arch it may be saved for utilisation in the correction of minor anterior crowding by the placement of a passive lower lingual arch (LLA) during the transition from the mixed dentition to the permanent dentition.
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Effat S, Mohamed N, Hussein H, Azzam H, Gouda A, Hassan H. 670 – ADHD symptoms: relation to omega 3 serum levels before and after supplementation. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)75914-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Mohamed N, Ameer-Batcha W, Abdullah NK, Yusoff F. ILLICIT AND BENZODIAZEPINE DRUGS USE AMONG FATALLY INJURED DRIVERS IN URBAN AREAS OF KUALA LUMPAR. Inj Prev 2012. [DOI: 10.1136/injuryprev-2012-040580c.31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hashim H, Jamaluddin S, Mohamed N. UNDERSTANDING ANATOMICAL INJURY SEVERITY OF FATAL ROAD CRASHES. Inj Prev 2012. [DOI: 10.1136/injuryprev-2012-040590u.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hashad D, Mohamed N, Hashad MM. Luteinising hormone β-subunit gene Gly102Ser variant and oxidative stress biomarkers in Egyptian infertile males. Andrologia 2011; 44 Suppl 1:484-9. [PMID: 21806667 DOI: 10.1111/j.1439-0272.2011.01212.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
The aim of the present study was to evaluate the association of Glycine102Serine molecular variant of luteinising hormone (LH) β-subunit gene with infertility in Egyptian males and to assess the impact of oxidative stress in association with Glycine102Serine molecular variant on male infertility. Fifty men with idiopathic oligozoospermia were enrolled in the study. The control group consisted of 39 men with normal semen parameters and proven fertility. Variable oxidative status markers were evaluated. Glycine102Serine variant was investigated using restriction fragment length polymorphism-polymerase chain reaction. The study concluded that Glycine102Serine variant of LH β-subunit gene is relatively common among infertile Egyptian males and might be implicated in some Egyptian infertility cases. In addition, the association of this variant, in some cases, with disturbed oxidative status (decreased seminal plasma antioxidants' level and increased sperm lipid peroxidation) probably have a significant role in accentuation of infertility in those particular cases.
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Shuid A, Siang L, Chin T, Muhammad N, Mohamed N, Soelaiman I. Acute and Subacute Toxicity Studies of Eurycoma longifolia in Male Rats. INT J PHARMACOL 2011. [DOI: 10.3923/ijp.2011.641.646] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mohamed N, Eviston DP, Quinton AE, Benzie RJ, Kirby AC, Peek MJ, Nanan RK. Smaller fetal thymuses in pre-eclampsia: a prospective cross-sectional study. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2011; 37:410-415. [PMID: 21308839 DOI: 10.1002/uog.8953] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/25/2011] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To determine whether the thymus is smaller in fetuses of pre-eclamptic mothers than in those of normal controls. METHODS This was a cross-sectional, prospective, comparative study of sonographically determined fetal thymus measurements in 39 pregnancies with pre-eclampsia and 70 healthy pregnancies. RESULTS Both the diameter and the perimeter of the fetal thymus were smaller in pregnancies with pre-eclampsia than in healthy controls. The means of the thymus diameters were 28.6 ± 5.9 and 32.9 ± 4.5 mm and of thymus perimeters 80.9 ± 16.5 and 93.1 ± 16.6 mm for pre-eclamptic and healthy pregnancies, respectively (P < 0.001). General linear models showed that smaller fetal thymuses in pre-eclampsia were independent of gestational age, estimated fetal weight, small for gestational age status and antenatal steroid use. CONCLUSIONS Pre-eclampsia is associated with smaller fetal thymuses.
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Hudson APG, Harris AMP, Mohamed N. Maxillary canine management in the pre-adolescent: a guideline for general practitioners. SADJ : JOURNAL OF THE SOUTH AFRICAN DENTAL ASSOCIATION = TYDSKRIF VAN DIE SUID-AFRIKAANSE TANDHEELKUNDIGE VERENIGING 2010; 65:366-370. [PMID: 21133050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This paper focuses on the identification of ectopic eruption patterns of the maxillary canines from the dental ages of approximately 8 to 12 years. The timing and suitability of interceptive treatment in pre-adolescents are discussed.
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Abd El-Hadi, A, El-Minofi H, Mohamed N, El-Beih F. CONVERSION OF LACTOSE TO CALCIUM LACTOBIONATE BY SOME BACTERIAL SPECIES. EGYPTIAN JOURNAL OF AGRICULTURAL SCIENCES 2010; 61:325-331. [DOI: 10.21608/ejarc.2010.215478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Mohamed S, Mohamed N, Esmael T, Khaled S. A simple procedure for management of urethrocutaneous fistulas; post-hypospadias repair. Afr J Paediatr Surg 2010; 7:124-8. [PMID: 20431229 DOI: 10.4103/0189-6725.62844] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES The treatment of urethral fistulas is quite challenging. We try to evaluate the results of a simple procedure in post-hypospadias urethral fistula repair. MATERIALS AND METHODS In the period from 2003 to 2007, 35 patients with 35 fistulas, with an average age 3.5 years [range: 2-8], were classified into coronal 12, mid-penile 13 and proximal 10. Based on the size they were grouped into two--either less than 5 mm (20) or more than 5 mm (15). Midline relaxing incision was used for large fistulas and then covered with a vascularised flap dartos-based flap [flip flap] in 19 and tunica vaginalis in 16. If a patient had more than one small fistula adjacent to each other, they were joined into a large single fistula and then repaired. RESULTS We have successfully repaired all urethrocutaneous fistulas using our protocol, with success rate [97.3] 1/35. CONCLUSIONS Dorsal midline urethral incision (DUMI), with dartos flip flap or tunica vaginalis coverage is an appropriate procedure to repair midline and proximal urethral fistulas.
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Galván DE, Botto F, Parma AM, Bandieri L, Mohamed N, Iribarne OO. Food partitioning and spatial subsidy in shelter-limited fishes inhabiting patchy reefs of Patagonia. JOURNAL OF FISH BIOLOGY 2009; 75:2585-2605. [PMID: 20738509 DOI: 10.1111/j.1095-8649.2009.02453.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The diets of the most conspicuous reef-fish species from northern Patagonia, the carnivorous species Pseudopercis semifasciata, Acanthistius patachonicus, Pinguipes brasilianus and Sebastes oculatus were studied. Pinguipes brasilianus had the narrowest diet and most specialized feeding strategy, preying mostly on reef-dwelling organisms such as sea urchins, limpets, bivalves, crabs and polychaetes. The diet of A. patachonicus was characterized by the presence of reef and soft-bottom benthic organisms, mainly polychaetes, crabs and fishes. Pseudopercis semifasciata showed the broadest spectrum of prey items, preying upon reef, soft-bottom and transient organism (mainly fishes, cephalopods and crabs). All S. oculatus guts were empty, but stable-isotope analyses suggested that this species consumed small fishes and crabs. In general, P. brasilianus depended on local prey populations and ate different reef-dwelling prey than the other species. Pseudopercis semifasciata, A. patachonicus and probably S. oculatus, however, had overlapping trophic niches and consumed resources from adjacent environments. The latter probably reduces the importance of food as a limiting resource for these reef-fish populations, facilitating their coexistence in spite of their high trophic overlap.
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Moustafa H, Saadallah H, Mohamed N. P1.005 Neurologic soft signs in obsessive compulsive Egyptian patients and its correlation with the severity of obsessive compulsive symptoms. Parkinsonism Relat Disord 2009. [DOI: 10.1016/s1353-8020(09)70127-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hudson APG, Harris AMP, Mohamed N. The mixed dentition pantomogram: a valuable dental development assessment tool for the dentist. SADJ : JOURNAL OF THE SOUTH AFRICAN DENTAL ASSOCIATION = TYDSKRIF VAN DIE SUID-AFRIKAANSE TANDHEELKUNDIGE VERENIGING 2009; 64:480-483. [PMID: 20306868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The mixed dentition pantomogram is routinely used in paediatric patients. This paper discusses the value of the pantomogram for early identification of problems in dental development during the mixed dentition stage. Aspects regarding dental maturity, leeway space, the sequence of eruption of the permanent teeth, anomalies and the development of the canines will be reviewed.
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Abd El-Azim W, Ahmed S, Mohamed N. EFFECT OF WATER AND SALT STRESS ON THE GROWTH AND CHEMICAL COMPOSITION OF Peganum harmala L. UNDER RAS SUDR CONDITIONS. EGYPTIAN JOURNAL OF AGRICULTURAL SCIENCES 2009; 60:0-0. [DOI: 10.21608/ejarc.2009.215928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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