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Ibrahim S. Utilization of Insecticide Treated Nets among Pregnant Women Attending Antenatal Clinic in a Suburban Referral Hospital, North-East Nigeria. ACTA ACUST UNITED AC 2014. [DOI: 10.9734/bjmmr/2014/8400] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Breslin FC, Ibrahim S, Smith P, Mustard C, Amick B, Shankardass K. The demographic and contextual correlates of work-related repetitive strain injuries among Canadian men and women. Am J Ind Med 2013; 56:1180-9. [PMID: 23861233 DOI: 10.1002/ajim.22195] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND The study sought to identify gender differences in work-related repetitive strain injuries (RSI), as well as examine the degree to which non-work factors such as family roles interact with gender to modify RSI risk. Another aim is to examine whether there are potential provincial differences in work-related RSI risk. METHODS The 2003/2005 Canadian Community Health Survey included over 89,000 respondents who reported working in the past 12 months. Separate multi-level models for men and women were used to identify the correlates of work-related RSIs. RESULTS Women reported sustaining more work-related RSIs than men. Also, having one or more children in the household was associated with lower work-related RSI risk for females. Both men and women in British Columbia reported higher work-related RSI rates than in Ontario. CONCLUSIONS Gender contributes to RSI risk in multiple and diverse ways based on labor market segregation, non-work exposures, and possibly biological vulnerability, which suggests more tailored interventions. Also, the provincial differences indicate that monitoring and surveillance of work injury across jurisdictions can assist in province-wide prevention and occupational health and safety evaluation.
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Affiliation(s)
- F. Curtis Breslin
- Institute for Work and HealthToronto, OntarioCanada
- Seneca CollegeSchool of English and Liberal StudiesToronto, OntarioCanada
- University of TorontoDalla Lana School of Public HealthToronto, OntarioCanada
| | - S. Ibrahim
- Institute for Work and HealthToronto, OntarioCanada
- University of TorontoDalla Lana School of Public HealthToronto, OntarioCanada
| | - P. Smith
- Institute for Work and HealthToronto, OntarioCanada
- University of TorontoDalla Lana School of Public HealthToronto, OntarioCanada
- Monash UniversitySchool of Public Health and Preventive MedicineVictoriaAustralia
| | - C. Mustard
- Institute for Work and HealthToronto, OntarioCanada
- University of TorontoDalla Lana School of Public HealthToronto, OntarioCanada
| | - B. Amick
- Institute for Work and HealthToronto, OntarioCanada
- University of Texas at Houston School of Public Health, Southwest Center for Occupational and Environmental HealthHouston, Texas
| | - K. Shankardass
- Department of PsychologyWilfrid Laurier UniversityWaterloo, OntarioCanada
- St. Michael's HospitalToronto, OntarioCanada
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Ghoussoub K, Ibrahim S, Sakkal J, Sleilati G, Sader S, Hage A. État des lieux des activités des membres de l’équipe multidisciplinaire de deux centres de réhabilitation au Liban. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.708] [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: 10/26/2022]
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Ghoussoub K, Ibrahim S, Sakkal J, Sleilati G, Sader S, Hage A. State of play of the activities of members of the multidisciplinary team of two rehabilitation centers in Lebanon. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.1089] [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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Ghoussoub K, Sakkal J, Ibrahim S, Sleilati G, Choueiri-Medlej R, Hage A. Enquête sur les escarres et les infections nosocomiales dans deux centres de réhabilitation au Liban et profil des patients hospitalisés. Ann Phys Rehabil Med 2013. [DOI: 10.1016/j.rehab.2013.07.710] [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: 10/26/2022]
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Flyckt R, Ibrahim S, Tantibhedhyangkul J. Obesity and polycystic ovarian syndrome: is there a link between dysfunctional sleep and IVF outcomes? Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.900] [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: 10/26/2022]
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Ibrahim S, Jespersen J, Poller L. The clinical evaluation of International Normalized Ratio variability and control in conventional oral anticoagulant administration by use of the variance growth rate. J Thromb Haemost 2013; 11:1540-6. [PMID: 23945031 DOI: 10.1111/jth.12322] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [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: 11/22/2012] [Accepted: 06/11/2013] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The time in target International Normalized Ratio (INR) range (TIR) is used to assess the control and intensity of oral anticoagulation, but it does not measure variation in the INR. OBJECTIVES The value of assessing INR variability by use of the variance growth rate (VGR) as a predictor of events was investigated in patients treated with warfarin. METHODS Three different methods of VGR determination (A, B1, and B2) together with the TIR were studied. Method A measures both INR variability and control, but methods B1 and B2 measure variability only. The VGR and TIR were determined over three time periods: overall follow-up to an event, and 6 months and 3 months before an event. RESULTS Six hundred and sixty-one control patients were matched to 158 cases (bleeding, thromboembolism, or death). With all VGR methods, the risk of an event was greater in unstable patients at 6 months before an event than in stable patients. Method A demonstrated the greatest risk 3 months before an event in the unstable VGR group as compared with the stable group (odds ratio 3.3, 95% confidence interval 1.9-5.7, P < 0.005). The risk of an event was 1.9 times greater in patients with a low TIR (< 39%) than in those with a high TIR (> 80%) in the 3-month period (P = 0.02). Risk of bleeding was significantly greater in the 3-month period in patients with unstable VGR, with the greatest risk found with method B2 (P < 0.01). CONCLUSIONS Patients with unstable anticoagulation have a significantly increased risk of 'clinical events' at 3 and 6 months before an event. The VGR can be incorporated into computer-dosage programs, and may offer additional safety when oral anticoagulation is monitored.
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Affiliation(s)
- S Ibrahim
- European Action on Anticoagulation (EAA) Central Facility, University of Manchester, Manchester, UK
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Ibrahim S, Kanniyan A. EFFECT OF SELECTED PHYSICAL, TECHNICAL AND MOTOR FITNESS VARIABLES ON THE PREDICTION OF POLE VAULTING PERFORMANCE OF MEN. Br J Sports Med 2013. [DOI: 10.1136/bjsports-2013-092558.87] [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: 11/04/2022]
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Ameh AO, Mohammed Dabo IA, Ibrahim S, Ameh JB. Earthworm-assisted bioremediation of petroleum hydrocarbon contaminated soil from mechanic workshop. ACTA ACUST UNITED AC 2013. [DOI: 10.5897/ajest2013.1506] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Poller L, Jespersen J, Ibrahim S, Pattison A. Phase III studies on novel oral anticoagulants for stroke prevention in atrial fibrillation: a look beyond the excellent results: a rebuttal. J Thromb Haemost 2013; 11:1203-5. [PMID: 23398659 DOI: 10.1111/jth.12164] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Indexed: 11/30/2022]
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Jung W, Prüßmann J, Recke A, Rentzsch K, Juhl D, Henschler R, Müller S, Lamprecht P, Schmidt E, Csernok E, Görg S, Stöcker W, Zillikens D, Ibrahim S, Ludwig R. AB0734 Prevalence and co-occurrence of autoantibodies in blood donors. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.734] [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: 11/04/2022]
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Kwoh C, Cloonan Y, Boudreau R, Hannon M, Vina E, Ibrahim S. AB1319 Examination of determinants of patient preferences for total knee replacement (TKR) among men and women:. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1315] [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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Ibrahim S, Omer A, Saggar R, Hurley J, Bremner R, Kuo E, Huang J, Hashimi S, Smith M, Walia R. Lung Transplantation Outcomes in “Older” Patients: Risk vs. Benefit? J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.705] [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: 10/27/2022] Open
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Ibrahim S, Yunus MAM, Green RG, Dutton K. Concentration measurements of bubbles in a water column using an optical tomography system. ISA Trans 2012; 51:821-826. [PMID: 22624831 DOI: 10.1016/j.isatra.2012.04.010] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Revised: 04/27/2012] [Accepted: 04/27/2012] [Indexed: 06/01/2023]
Abstract
Optical tomography provides a means for the determination of the spatial distribution of materials with different optical density in a volume by non-intrusive means. This paper presents results of concentration measurements of gas bubbles in a water column using an optical tomography system. A hydraulic flow rig is used to generate vertical air-water two-phase flows with controllable bubble flow rate. Two approaches are investigated. The first aims to obtain an average gas concentration at the measurement section, the second aims to obtain a gas distribution profile by using tomographic imaging. A hybrid back-projection algorithm is used to calculate concentration profiles from measured sensor values to provide a tomographic image of the measurement cross-section. The algorithm combines the characteristic of an optical sensor as a hard field sensor and the linear back projection algorithm.
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Affiliation(s)
- S Ibrahim
- Faculty of Electrical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
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Zanna H, Nok AJ, Ibrahim S, Inuwa HM. Stabilization of Aspergillus parasiticus cytosine deaminase by immobilization on calcium alginate beads improved enzyme operational stability. J Enzyme Inhib Med Chem 2012; 28:1217-20. [DOI: 10.3109/14756366.2012.724406] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H. Zanna
- Department of Biochemistry, Faculty of Science, University of Maiduguri,
Maiduguri, Nigeria
| | - A. J. Nok
- Department of Biochemistry, Faculty of Science, Ahmadu Bello University,
Zaria, Nigeria
| | - S. Ibrahim
- Department of Biochemistry, Faculty of Science, Ahmadu Bello University,
Zaria, Nigeria
| | - H. M. Inuwa
- Department of Biochemistry, Faculty of Science, Ahmadu Bello University,
Zaria, Nigeria
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Aubel J, Mamadou EH, Djabel I, Ibrahim S, Coulibaly B. From qualitative community data collection to program design: health education planning in niger. Int Q Community Health Educ 2012; 11:345-69. [PMID: 20841225 DOI: 10.2190/v1dk-98xa-awu6-qkdf] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In order to develop health education programs which are adapted to specific sociocultural contexts, in-depth, qualitative data are necessary for program planning. For this purpose, informal data collection techniques are often more appropriate than conventional, formal research methods. In addition to the type of data collection used as a basis for program planning, three other aspects of the program planning process contribute to the quality of programs developed: who is involved in preliminary data collection and program planning; the degree of contact between program planners and target communities; whether program planning is viewed as a top-down, mechanical process or as a collaborative, problem-solving process. This article describes the methodology used to develop a diarrhoeal disease health education program in the Zinder region of Niger in which particular attention was given to these four aspects of the planning process.
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Poller L, Jespersen J, Ibrahim S. Artificially depleted plasmas are not necessarily commutable with native patient plasmas for International Sensitivity Index calibration and International Normalized Ratio derivation: a reply. J Thromb Haemost 2012; 10:2211-2. [PMID: 22863323 DOI: 10.1111/j.1538-7836.2012.04873.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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Sindbis viral vectors target and inhibit the growth of various solid tumors in mouse models. However, their efficacy against blood cancer has not been well established. Here, we show that Sindbis vectors infect and efficiently trigger apoptosis in mouse BW5147 malignant hematopoietic T-cells, but only at low levels in human lymphoma and leukemia cells (Jurkat, Karpas, CEM, DHL and JB). The Mr 37/67 kD laminin receptor (LAMR) has been suggested to be the receptor for Sindbis virus. However, JB cells, which are infected by Sindbis at low efficiency, express high levels of LAMR, revealing that additional factors are involved in Sindbis tropism. To test the infectivity and therapeutic efficacy of Sindbis vectors against malignant hematopoietic cells in vivo, we injected BW5147 cells intraperitoneally into (C3HXAKR) F1 hybrid mice. We found that Sindbis vectors targeted the tumors and significantly prolonged survival of tumor-bearing mice. We also tested the Sindbis vectors in a transgenic CD4-Rgr model, which spontaneously develop thymic lymphomas. However, infectivity in this model was less efficient. Taken together, these results demonstrate that Sindbis vectors have the potential to target and kill hematopoietic malignancies in mice, but further research is needed to evaluate the mechanism underlining the susceptibility of human lymphoid malignancies to Sindbis therapy.
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Affiliation(s)
- R Suzme
- Department of Pathology and NYU Cancer Institute, New York University School of Medicine, New York, NY 10016, USA.
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Poller L, Ibrahim S, Jespersen J, Pattison A. Coagulometer international sensitivity index (ISI) derivation, a rapid method using the prothrombin time/international normalized ratio (PT/INR) Line: a multicenter study. J Thromb Haemost 2012; 10:1379-84. [PMID: 22519939 DOI: 10.1111/j.1538-7836.2012.04751.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The original WHO procedure for prothrombin time (PT) standardization has been almost entirely abandoned because of the universal use of PT coagulometers. These often give different international normalized ratio (INR) results from the manual method, between individual makes of instruments and with instruments from the same manufacture. METHOD A simple procedure is required to derive local INR with coagulometers. The PT/INR Line method has recently been developed using five European Concerted Action on Anticoagulation (ECAA) certified plasmas to derive local INR. This procedure has been modified to derive a coagulometer PT/INR Line providing International Sensitivity Index (ISI) and mean normal PT (MNPT) for coagulometers and give local INR. Results have been compared with conventional ISI calibrations at the same laboratories. RESULTS With human thromboplastins, mean ISI by local calibration was 0.93 (range: 0.77-1.16). With the PT/INR Line, mean coagulometer ISI was higher, for example 0.99 (0.84-1.23) but using the PT/INR Line derived MNPT there was no difference in local INR. Between-centre INR variation of a certified validation plasma was reduced with human and bovine reagents after correction with local ISI calibrations and the PT/INR Line. CONCLUSION The PT/INR Line-ISI with its derived MNPT is shown to provide reliable local INR with the 13 different reagent/coagulometer combinations at the 28 centres in this international study.
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Affiliation(s)
- L Poller
- European Action on Anticoagulation Central Facility, Faculty of Life Sciences, University of Manchester, Manchester, UK.
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Willis W, Wall D, Isikhuemhe O, Ibrahim S, Minor R, Jackson J, Hurley S, Anike F. Effect of Different Mushrooms Fed to Eimeria-Challenged Broilers on
Rearing Performance. ACTA ACUST UNITED AC 2012. [DOI: 10.3923/ijps.2012.433.437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Poller L, Jespersen J, Ibrahim S. Artificially depleted plasmas are not necessarily commutable with native patient plasmas for International Sensitivity Index calibration and International Normalized Ratio derivation: a rebuttal. J Thromb Haemost 2012; 10:1197-8; author reply 1198-200. [PMID: 22487169 DOI: 10.1111/j.1538-7836.2012.04731.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
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Nwachukwu RES, Shahbazi A, Wang L, Ibrahim S, Worku M, Schimmel K. Bioconversion of glycerol to ethanol by a mutant Enterobacter aerogenes. AMB Express 2012; 2:20. [PMID: 22455837 PMCID: PMC3350409 DOI: 10.1186/2191-0855-2-20] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Accepted: 03/29/2012] [Indexed: 11/10/2022] Open
Abstract
The main objective of this research is to develop, by adaptive evolution, mutant strains of Enterobacter aerogenes ATCC 13048 that are capable of withstanding high glycerol concentration as well as resisting ethanol-inhibition. The mutant will be used for high ethanol fermentation from glycerol feedstock. Ethanol production from pure (P-) and recovered (R-) glycerol using the stock was evaluated. A six-tube-subculture-generations method was used for developing the mutant. This involved subculturing the organism six consecutive times in tubes containing the same glycerol and ethanol concentrations at the same culture conditions. Then, the glycerol and/or ethanol concentration was increased and the six subculture generations were repeated. A strain capable of growing in 200 g/L glycerol and 30 g/L ethanol was obtained. The ability of this mutant, vis-à-vis the original strain, in utilizing glycerol in a high glycerol containing medium, with the concomitant ethanol yield, was assessed. Tryptic soy broth without dextrose (TSB) was used as the fermentation medium. Fermentation products were analyzed using HPLC. In a 20 g/L glycerol TSB, E. aerogenes ATCC 13048 converted 18.5 g/L P-glycerol and 17.8 g/L R-glycerol into 12 and 12.8 g/L ethanol, respectively. In a 50 g/L P-glycerol TSB, it utilized only 15.6 g/L glycerol; but the new strain used up 39 g/L, yielding 20 g/L ethanol after 120 h, an equivalence of 1.02 mol ethanol/mol-glycerol. This is the highest ethanol yield reported from glycerol bioconversion. The result of this P-glycerol fermentation can be duplicated using the R-glycerol from biodiesel production.
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Faisham WI, Nawaz AH, Ezane AM, Zulmi W, Ibrahim S, Abdul Halim AR. Non-Operative Treatment Versus Steroid Injections in the Management of Unicameral Bone Cysts. Malays Orthop J 2011. [DOI: 10.5704/moj.1107.003] [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: 11/05/2022] Open
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Fitzgerald PB, Hoy K, Gunewardene R, Slack C, Ibrahim S, Bailey M, Daskalakis ZJ. A randomized trial of unilateral and bilateral prefrontal cortex transcranial magnetic stimulation in treatment-resistant major depression. Psychol Med 2011; 41:1187-1196. [PMID: 20925972 DOI: 10.1017/s0033291710001923] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [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: 11/06/2022]
Abstract
BACKGROUND Although several studies have reported that repetitive transcranial magnetic stimulation (rTMS) treatment has demonstrable efficacy in patients with depression, the parameters needed to optimize therapeutic efficacy remain unclear. To this end we determined the efficacy of low-frequency right rTMS to the dorsolateral prefrontal cortex (DLPFC) compared to two forms of bilateral rTMS to the DLPFC: (1) sequential low-frequency right-sided followed by high-frequency left-sided rTMS and (2) sequential low-frequency rTMS to both hemispheres. METHOD A total of 219 patients with treatment-resistant depression (TRD) were randomized to a 4-week course of rTMS applied with one of the three treatment conditions. Outcomes were assessed with standard rating scales. RESULTS Overall, slightly more than 50% of the patients achieved clinical response criteria. There was no substantial difference in response between the unilateral and bilateral treatment groups. Successful response to rTMS was predicted by a greater degree of baseline depression severity. CONCLUSIONS There is no substantial difference in efficacy between unilateral right-sided rTMS and the two forms of bilateral rTMS assessed in the study. Furthermore, our results call into question the specificity between frequency and laterality and rTMS response.
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Affiliation(s)
- P B Fitzgerald
- The Alfred and Monash University School of Psychology and Psychiatry, Melbourne, Victoria, Australia.
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Jarral OA, McCormack DJ, Ibrahim S, Shipolini AR. Should surgeons scrub with chlorhexidine or iodine prior to surgery? Interact Cardiovasc Thorac Surg 2011; 12:1017-21. [DOI: 10.1510/icvts.2010.259796] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Weiss H, Ibrahim S, Tiedge M. Der Atp8-Gendefekt im FVB Mausstamm erhöht die basale mitochondriale ROS Generierung in Beta-Zellen und induziert eine Betazell-Dysfunktion nach Hochfettdiät. DIABETOL STOFFWECHS 2011. [DOI: 10.1055/s-0031-1277383] [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: 10/18/2022]
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Roohi SA, Samsudin OC, Shukur MH, Ibrahim S. Metastatic Adenocarcinoma to the Wrist Presenting as Carpal Tunnel Syndrome: A Report of an Unusual Cause. Malays Orthop J 2011. [DOI: 10.5704/moj.1103.018] [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: 11/05/2022] Open
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Ibrahim S, Kothapalli CR, Kang QK, Ramamurthi A. Characterization of glycidyl methacrylate - crosslinked hyaluronan hydrogel scaffolds incorporating elastogenic hyaluronan oligomers. Acta Biomater 2011; 7:653-65. [PMID: 20709199 DOI: 10.1016/j.actbio.2010.08.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Revised: 08/02/2010] [Accepted: 08/09/2010] [Indexed: 11/18/2022]
Abstract
Prior studies on two-dimensional cell cultures suggest that hyaluronic acid (HA) stimulates cell-mediated regeneration of extracellular matrix structures, specifically those containing elastin, though such biologic effects are dependent on HA fragment size. Towards being able to regenerate three-dimensional (3-D) elastic tissue constructs, the present paper studies photo-crosslinked hydrogels containing glycidyl methacrylate (GM)-derivatized bio-inert high molecular weight (HMW) HA (1 × 10(6)Da) and a bioactive HA oligomer mixture (HA-o: MW ∼0.75 kDa). The mechanical (rheology, degradation) and physical (apparent crosslinking density, swelling ratio) properties of the gels varied as a function of incorporated HA oligomer content; however, overall, the mechanics of these hydrogels were too weak for vascular applications as stand-alone materials. Upon in vivo subcutaneous implantation, only a few inflammatory cells were evident around GM-HA gels, however their number increased as HA-o content within the gels increased, and the collagen I distribution was uniform. Smooth muscle cells (SMC) were encapsulated into GM hydrogels, and calcein acetoxymethyl detection revealed that the cells were able to endure twofold the level of UV exposure used to crosslink the gels. After 21 days of culture, SMC elastin production, measured by immunofluorescence quantification, showed HA-o to increase cellular deposition of elastic matrix twofold relative to HA-o-free GM-HA gels. These results demonstrate that cell response to HA/HA-o is not altered by their methacrylation and photo-crosslinking into a hydrogel, and that HA-o incorporation into cell-encapsulating hydrogel scaffolds can be useful for enhancing their production of elastic matrix structures in a 3-D space, important for regenerating elastic tissues.
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Affiliation(s)
- S Ibrahim
- Department of Bioengineering, Clemson University, Clemson, SC 29634, USA
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Poller L, Ibrahim S, Keown M, Pattison A, Jespersen J. The prothrombin time/international normalized ratio (PT/INR) Line: derivation of local INR with commercial thromboplastins and coagulometers--two independent studies. J Thromb Haemost 2011; 9:140-8. [PMID: 20942851 DOI: 10.1111/j.1538-7836.2010.04109.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND The WHO scheme for prothrombin time (PT) standardization has been limited in application, because of its difficulties in implementation, particularly the need for mandatory manual PT testing and for local provision of thromboplastin international reference preparations (IRP). METHODS The value of a new simpler procedure to derive international normalized ratio (INR), the PT/INR Line, based on only five European Concerted Action on Anticoagulation (ECAA) calibrant plasmas certified by experienced centres has been assessed in two independent exercises using a range of commercial thromboplastins and coagulometers. INRs were compared with manual certified values with thromboplastin IRP from expert centres and in the second study also with INRs from local ISI calibrations. RESULTS In the first study with the PT/INR Line, 8.7% deviation from certified INRs was reduced to 1.1% with human reagents, and from 7.0% to 2.6% with rabbit reagents. In the second study, deviation was reduced from 11.2% to 0.4% with human reagents by both local ISI calibration and the PT/INR Line. With rabbit reagents, 10.4% deviation was reduced to 1.1% with both procedures; 4.9% deviation was reduced to 0.5% with bovine/combined reagents with local ISI calibrations and to 2.9% with the PT/INR Line. Mean INR dispersion was reduced with all thromboplastins and automated systems using the PT/INR Line. CONCLUSIONS The procedure using the PT/INR Line provides reliable INR derivation without the need for WHO ISI calibration across the range of locally used commercial thromboplastins and automated PT systems included in two independent international studies.
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Affiliation(s)
- L Poller
- EAA Central Facility, Faculty of Life Sciences, University of Manchester, Manchester, UK.
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135
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Ibrahim S, Azeem K. Study on the relationship between skill performance and selected physical fitness variables of hand ball players. Br J Sports Med 2010. [DOI: 10.1136/bjsm.2010.078972.28.a] [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: 11/03/2022]
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136
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Mbuko I, Musa W, Ibrahim S, Sa`idu L, Abdu P, Oladele S, Kazeem H. A Retrospective Analysis of Infectious Bursal Disease Diagnosed at Poultry Unit of Ahmadu Bello University, Nigeria. ACTA ACUST UNITED AC 2010. [DOI: 10.3923/ijps.2010.784.790] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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137
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Weiss H, Koch C, Wester-Rosenloef L, Ibrahim S, Tiedge M. Untersuchung der Auswirkung der mitochondrialen Atp8-Mutation im NOD und B6 Mausmodell auf Betazellfunktion und Diabetessuszeptibilität. DIABETOL STOFFWECHS 2010. [DOI: 10.1055/s-0030-1253988] [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: 10/19/2022]
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138
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139
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Abughazaleh AA, Potu RB, Ibrahim S. Short communication: The effect of substituting fish oil in dairy cow diets with docosahexaenoic acid-micro algae on milk composition and fatty acids profile. J Dairy Sci 2010; 92:6156-9. [PMID: 19923618 DOI: 10.3168/jds.2009-2400] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The effects of substituting fish oil (FO) with docosahexaenoic acid (DHA)-micro algae on milk chemical and fatty acid composition were examined in this study. Twenty-four Holstein cows in mid lactation grazing on an alfalfa-grass based pasture were divided into 4 treatment groups (6 cows/treatment) and supplemented with 7 kg/d grain mix plus 350 g of soybean oil and one of the following: 1) 150 g of FO, 2) 100 g of FO plus 50 g of algae, 3) 50 g of FO plus 100 g of algae, or 4) 150 g of algae. Cows were fed treatment diets for 3 wk, and milk samples were collected from each cow during the last 3 d of the study. Milk production (17.96, 17.56, 17.55, and 19.26 kg/d for treatment diets 1 to 4, respectively), milk fat percentages (3.17, 3.49, 3.74, and 3.43%), and milk protein percentages (3.35, 3.50, 3.71, and 3.42%) were similar between treatment diets. Concentrations (g/100 g of fatty acids) of milk cis-9 trans-11 (c9t11) conjugated linoleic acid (CLA; 3.41, 3.69, 4.47, and 4.21 for treatment diets 1 to 4, respectively) and vaccenic acid (11.80, 12.83, 13.87, and 13.53) were similar between treatment diets. Results of this study suggest that DHA-micro algae can partially or fully substitute FO in a cow's diet without any adverse effects on milk production, milk composition, or milk c9t11 CLA content. The DHA-micro algae may be used as a viable alternative for FO in cow's diet to modify rumen biohydrogenation to increase milk c9t11 CLA content.
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Affiliation(s)
- A A Abughazaleh
- Department of Animal Science, Food and Nutrition, Southern Illinois University, Carbondale 62901, USA.
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140
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Ibrahim S, Nienow AW. THE EFFECT OF VISCOSITY ON PARTICLE SUSPENSION IN AN AERATED STIRRED VESSEL WITH DIFFERENT IMPELLERS AND BASES. CHEM ENG COMMUN 2009. [DOI: 10.1080/00986440903245914] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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141
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Chen G, Schmutz B, Epari D, Rathnayaka K, Ibrahim S, Schuetz MA, Pearcy MJ. A new approach for assigning bone material properties from CT images into finite element models. J Biomech 2009; 43:1011-5. [PMID: 19942221 DOI: 10.1016/j.jbiomech.2009.10.040] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2009] [Revised: 10/24/2009] [Accepted: 10/28/2009] [Indexed: 10/20/2022]
Abstract
Generation of subject-specific finite element (FE) models from computed tomography (CT) datasets is of significance for application of the FE analysis to bone structures. A great challenge that remains is the automatic assignment of bone material properties from CT Hounsfield Units into finite element models. This paper proposes a new assignment approach, in which material properties are directly assigned to each integration point. Instead of modifying the dataset of FE models, the proposed approach divides the assignment procedure into two steps: generating the data file of the image intensity of a bone in a MATLAB program and reading the file into ABAQUS via user subroutines. Its accuracy has been validated by assigning the density of a bone phantom into a FE model. The proposed approach has been applied to the FE model of a sheep tibia and its applicability tested on a variety of element types. The proposed assignment approach is simple and illustrative. It can be easily modified to fit users' situations.
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Affiliation(s)
- G Chen
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD 4059, Australia.
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142
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Ibrahim S, Muhammad Z, Abubakar I. O392 Knowledge, attitude and practice of family planning amongst women attending antenatal clinic in Aminu Kano Teaching Hospital, Kano. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)60773-6] [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: 11/25/2022]
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143
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Jowett S, Bryan S, Poller L, VAN DEN Besselaar AMHP, VAN DER Meer FJM, Palareti G, Shiach C, Tripodi A, Keown M, Ibrahim S, Lowe G, Moia M, Turpie AG, Jespersen J. The cost-effectiveness of computer-assisted anticoagulant dosage: results from the European Action on Anticoagulation (EAA) multicentre study. J Thromb Haemost 2009; 7:1482-90. [PMID: 19515090 DOI: 10.1111/j.1538-7836.2009.03508.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Increased demand for oral anticoagulation has resulted in wider adoption of computer-assisted dosing in anticoagulant clinics. An economic evaluation has been performed to investigate the cost-effectiveness of computer-assisted dosing in comparison with manual dosing in patients on oral anticoagulant therapy. METHODS A trial-based cost-effectiveness analysis was conducted as part of the EAA randomized study of computer-assisted dosage vs. manual dosing. The 4.5-year multinational trial was conducted in 32 centres with 13 219 anticoagulation patients randomized to manual or computer-assisted dosage. The main outcome measures were total health care costs, clinical event rates and cost-saving per clinical event prevented by computer dosing compared with manual dosing. RESULTS Mean dosing costs per patient were lower (difference: euro47) for computer-assisted dosing, but with little difference in clinical event costs. Total overall costs were euro51 lower in the computer-assisted dosing arm. There were a larger number of clinical events in the manual dosing arm. The overall difference between trial arms was not significant (difference in clinical events, -0.003; 95% CI, -0.010-0.004) but there was a significant reduction in events with DVT/PE, suggesting computer-assisted dosage with the two study programs (dawn ac or parma 5) was at least as effective clinically as manual dosage. The cost-effectiveness analysis indicated that computer-assisted dosing is less costly than manual dosing. CONCLUSIONS Results indicate that computer-assisted dosage with the two programs (dawn ac and parma 5) is cheaper than manual dosage and is at least as effective clinically, indicating that investment in this technology represents value for money.
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Affiliation(s)
- S Jowett
- Health Economics, School of Health and Population Sciences, University of Birmingham, Birmingham.
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Kholoussi N, Khorshed A, Soliman A, Wahab NA, Ibrahim S, Emara K, Rashed R, Mansour T. 9246 Evolution of the accelerated and blastic phases of chronic myeloid leukemia: molecular, cytogenetic, flowcytometric and electron microscopic studies. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71937-8] [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: 10/20/2022] Open
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145
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Yates M, Kolmakova A, Ibrahim S, Zhao Y, Garcia J, Rodriguez A. Association of scavenger receptor class B, type I (SR-BI) SNPs with fertility outcomes in infertile women undergoing IVF. Fertil Steril 2009. [DOI: 10.1016/j.fertnstert.2009.07.1040] [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: 10/20/2022]
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146
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Vorreau P, Sygletos S, Parmigiani F, Hillerkuss D, Bonk R, Petropoulos P, Richardson DJ, Zarris G, Simeonidou D, Klonidis D, Tomkos I, Weerasuriya R, Ibrahim S, Ellis AD, Cotter D, Morais R, Monteiro P, Ben Ezra S, Tsadka S, Freude W, Leuthold J. Optical grooming switch with regenerative functionality for transparent interconnection of networks. Opt Express 2009; 17:15173-15185. [PMID: 19687996 DOI: 10.1364/oe.17.015173] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We demonstrate a regenerative optical grooming switch for buffer-less interconnection of metro/access and metro/core ring networks with switching functionality in time, space and wavelength domain. Key functionalities of the router are the traffic aggregation with time-slot interchanging (TSI) functionality, the WDM-to-ODTM multiplexing and the OTDM-to-WDM demultiplexing of high-speed channel into lower bit-rate tributaries as well as multi-wavelength all-optical 2R regeneration of several higher-speed signals. BER and Q-factor measurements of different switching scenarios show excellent performance with no error floor and Q-factors above 21 dB.
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Affiliation(s)
- P Vorreau
- Institute of Photonics and Quantum Electronics, University of Karlsruhe, Karlsruhe Institute of Technology, Kaiserstr. 12, 76131 Karlsruhe, Germany.
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147
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Borrero S, Lin Y, Dehlendorf C, Schwarz E, Creinin M, Nikolajski C, Ibrahim S. Differences in knowledge may contribute to racial variation in tubal sterilization rates. Contraception 2009. [DOI: 10.1016/j.contraception.2009.05.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [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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148
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Jönsen A, Yu X, Truedsson L, Nived O, Sturfelt G, Ibrahim S, Bengtsson A. Mitochondrial DNA polymorphisms are associated with susceptibility and phenotype of systemic lupus erythematosus. Lupus 2009; 18:309-12. [PMID: 19276298 DOI: 10.1177/0961203308097477] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The objective of this study was to investigate the possible association between mitochondrial DNA polymorphisms and systemic lupus erythematosus (SLE). A cohort from the Department of Rheumatology, Lund University Hospital, Sweden, consisting of 166 unrelated SLE patients was investigated as well as 190 unrelated healthy blood donors. Mean age at SLE diagnosis was 39 years (range 10-83) and mean follow-up time was 16 years (range 1-44). There were 87% women among the lupus patients, and the control group consisted of 98 women and 92 men from the same geographical area and with a similar age and ethnicity. The mtDNA SNP nt16189C was associated with SLE (OR = 1.98, 95% CI 1.04-3.78, P = 0.05). In addition, SNP nt13708A was associated with SLE in males (OR = 3.46, 95% CI 1.08-11.1, P = 0.04), although the number of male patients was low. Furthermore, SNP nt10398A was associated with secondary anti-phospholipid syndrome (P = 0.017, OR 8.2, 95% CI 1.1-63). In conclusion, in this study, we have for the first time investigated the possible association between SLE disease and mitochondrial DNA polymorphisms. Altogether, these novel results suggest that mtDNA polymorphisms may be associated with development of SLE and may potentially be of importance in SLE pathogenesis.
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Affiliation(s)
- A Jönsen
- Department of Clinical Sciences, Lund University Hospital, Lund University, Lund, Sweden
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149
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Abdul-Rahman NR, Mohammad KF, Ibrahim S. Gigantism of the lower limb in Klippel-Trenaunay syndrome: anatomy of the lateral marginal vein. Singapore Med J 2009; 50:e223-e225. [PMID: 19551303] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The Klippel-Trenaunay syndrome is a combination of venous and capillary malformations associated with soft tissue and/or bony limb hypertrophy, with or without lymphatic malformations. Although persistent foetal veins are rare, the persistence of the lateral marginal vein is a common association in this syndrome. It results in venous hypertension, which gives rise to venous varicosities, which are commonly seen in this syndrome. This is a case report of a 28-year-old man with Klippel-Trenaunay syndrome, with persistence of the lateral marginal vein, affecting his right lower limb. He was treated with an above-knee amputation. The amputated limb was dissected to demonstrate the anatomy of the lateral marginal vein. To the best of the authors' knowledge, the gross anatomy of the lateral marginal vein has not been previously reported.
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Affiliation(s)
- N R Abdul-Rahman
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
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150
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Alegbejo JO, Ameh DA, Ogala WN, Ibrahim S. Glycaemic Index Of Boiled Cocoyam And Stew. Sahel Med J 2009. [DOI: 10.4314/smj2.v11i3.12975] [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: 11/17/2022] Open
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