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Hassan S, Muzammil SM, Jafri L, Khan AH. An audit of clinical laboratory data of 25 [OH]D at Aga Khan University as reflecting vitamin D deficiency in Pakistan. J PAK MED ASSOC 2015; 65:1247-1250. [PMID: 26564307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To estimate the burden of Vitamin D deficiency in people from different geographical areas of Pakistan. METHODS The retrospective study was conducted at the Aga Khan University Hospital, Karachi, and comprised specimens of subjects tested for 25-hydroxy D at the clinical laboratory between September 2010 and September 2011. Serum samples received from the phlebotomy centres all over Pakistan and the main laboratory in Karachi were included. SPSS 19 was used for statistical analysis. RESULTS Of the 60937 specimens in the study, 18721(30.7%) related to men. The overall mean age was 40.5±19.7 years, and median 25-hydroxy D level was 13.5ng/ml (interquartile range: 25.1-7.4 ng/ml).Overall, mean log 25-hydroxy D was 1.14±0.39ng/ml (median: 13.5ng/ml; interquartile range: 25.1-7.4 ng/ml). Out of the total, 40279(66.1%) subjects were vitamin D-deficient. CONCLUSIONS Vitamin D deficiency was common among the subjects.
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Affiliation(s)
| | | | - Lena Jafri
- Department of Pathology and Microbiology, Aga Khan University, Karachi
| | - Aysha Habib Khan
- Department of Pathology and Microbiology, Aga Khan University, Karachi
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Dempsey B, Hassan S, Turner A, Allen A, Dampney R, Goodchild A, McMullan S. Direct projections from the inferior colliculus drive putative pre-motor sympathetic, respiratory and motor populations in the medulla. Auton Neurosci 2015. [DOI: 10.1016/j.autneu.2015.07.124] [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: 10/23/2022]
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103
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Hillier SL, Rabe LK, Beamer MA, Stoner K, Austin M, Petrina M, Crowe DS, Chaiworapongsa T, Lamont R, Ahmed A, Hassan S, Romero R. O13.1 The broad diversity of cultivable microbiota in pregnant women and the detection of novel organisms. Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.147] [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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Dearnaley D, Syndikus I, Mossop H, Birtle A, Bloomfield D, Cruickshank C, Graham J, Hassan S, Khoo V, Logue J, Mayles H, Money-Kyrle J, Naismith O, Panades M, Patterson H, Scrase C, Staffurth J, Tremlett J, Griffin C, Hall E. 8LBA 5 year outcomes of a phase III randomised trial of conventional or hypofractionated high dose intensity modulated radiotherapy for prostate cancer (CRUK/06/016): report from the CHHiP Trial Investigators Group. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31932-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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105
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Hassan S, Carpenter C, Estridge P, Malhas A, Wigderowitz C. A Comparison of Complications of Total Wrist Fusion and Silastic Arthroplasty. Geriatr Orthop Surg Rehabil 2015; 5:213. [PMID: 26246945 PMCID: PMC4252155 DOI: 10.1177/2151458514543003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Affiliation(s)
- S Hassan
- Department of Orthopaedic and Trauma Surgery, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - C Carpenter
- Department of Orthopaedic and Trauma Surgery, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - P Estridge
- Department of Orthopaedic and Trauma Surgery, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - A Malhas
- Department of Orthopaedic and Trauma Surgery, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - C Wigderowitz
- Department of Orthopaedic and Trauma Surgery, Ninewells Hospital and Medical School, Dundee, United Kingdom
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Ude CC, Ng MH, Chen CH, Htwe O, Amaramalar NS, Hassan S, Djordjevic I, Rani RA, Ahmad J, Yahya NM, Saim AB, Idrus RBH. Improved functional assessment of osteoarthritic knee joint after chondrogenically induced cell treatment. Osteoarthritis Cartilage 2015; 23:1294-306. [PMID: 25887366 DOI: 10.1016/j.joca.2015.04.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 03/30/2015] [Accepted: 04/02/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Our previous studies on osteoarthritis (OA) revealed positive outcome after chondrogenically induced cells treatment. Presently, the functional improvements of these treated OA knee joints were quantified followed by evaluation of the mechanical properties of the engineered cartilages. METHODS Baseline electromyogram (EMGs) were conducted at week 0 (pre-OA), on the locomotory muscles of nine un-castrated male sheep (Siamese long tail cross) divided into controls, adipose-derived stem cells (ADSCs) and bone marrow stem cells (BMSCs), before OA inductions. Subsequent recordings were performed at week 7 and week 31 which were post-OA and post-treatments. Afterwards, the compression tests of the regenerated cartilage were performed. RESULTS Post-treatment EMG analysis revealed that the control sheep retained significant reductions in amplitudes at the right medial gluteus, vastus lateralis and bicep femoris, whereas BMSCs and ADSCs samples had no further significant reductions (P < 0.05). Grossly and histologically, the treated knee joints demonstrated the presence of regenerated neo cartilages evidenced by the fluorescence of PKH26 tracker. Based on the International Cartilage Repair Society scores (ICRS), they had significantly lower grades than the controls (P < 0.05). The compression moduli of the native cartilages and the engineered cartilages differed significantly at the tibia plateau, patella femoral groove and the patella; whereas at the medial femoral condyle, they had similar moduli of 0.69 MPa and 0.40-0.64 MPa respectively. Their compression strengths at all four regions were within ±10 MPa. CONCLUSION The tissue engineered cartilages provided evidence of functional recoveries associated to the structural regenerations, and their mechanical properties were comparable with the native cartilage.
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Affiliation(s)
- C C Ude
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 K.L, Malaysia; Department of Physiology, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, Cheras 56000, K. L, Malaysia.
| | - M H Ng
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 K.L, Malaysia.
| | - C H Chen
- Department of Clinical Veterinary, Faculty of Veterinary Medicine Universiti Putra Malaysia, 43400 Serdang, Malaysia.
| | - O Htwe
- Rehabilitation Unit, Department of Orthopedic & Traumatology, Universiti Kebangsaan Malaysia Medical Center, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 K.L, Malaysia.
| | - N S Amaramalar
- Rehabilitation Unit, Department of Orthopedic & Traumatology, Universiti Kebangsaan Malaysia Medical Center, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 K.L, Malaysia.
| | - S Hassan
- Neurology Clinics, Faculty of Medicine Universiti Putra Malaysia, 43400 Serdang, Malaysia.
| | - I Djordjevic
- Department of Biomedical Engineering, Faculty of Engineering University of Malaya, 50603 K.L, Malaysia.
| | - R A Rani
- Department of Orthopedic & Traumatology, Universiti Kebangsaan Malaysia Medical Center, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 K.L, Malaysia.
| | - J Ahmad
- Department of Orthopedic & Traumatology, Universiti Kebangsaan Malaysia Medical Center, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 K.L, Malaysia.
| | - N M Yahya
- Department of Orthopedic & Traumatology, Universiti Kebangsaan Malaysia Medical Center, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 K.L, Malaysia.
| | - A B Saim
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000 K.L, Malaysia; ENT Consultant Clinic, Ampang Putri Specialist Hospital, 68000 Ampang, Malaysia.
| | - R B Hj Idrus
- Department of Physiology, Universiti Kebangsaan Malaysia Medical Centre, Jalan Yaacob Latif, Bandar Tun Razak, Cheras 56000, K. L, Malaysia; Department of Clinical Veterinary, Faculty of Veterinary Medicine Universiti Putra Malaysia, 43400 Serdang, Malaysia.
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Fyumagwa R, Hassan S, Kideghesho JR, Kohi EM, Magige F, Mfunda IM, Mwakatobe A, Ntalwila J, Nyahongo JW, Runyoro V, Røskaft E. Human rights and conservation of biodiversity considerations associated with roads in the Serengeti: response to Hopcraft et al. Conserv Biol 2015; 29:937-938. [PMID: 25711171 DOI: 10.1111/cobi.12469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 12/30/2014] [Indexed: 06/04/2023]
Affiliation(s)
- R Fyumagwa
- Tanzania Wildlife Research Institute (TAWIRI), Box 661, Arusha, Tanzania
| | - S Hassan
- Department of Wildlife Management, Sokoine University of Agriculture (SUA), P.O. Box 3073, Morogoro, Tanzania
| | - J R Kideghesho
- Department of Wildlife Management, Sokoine University of Agriculture (SUA), P.O. Box 3073, Morogoro, Tanzania
| | - E M Kohi
- Tanzania Wildlife Research Institute (TAWIRI), Box 661, Arusha, Tanzania
| | - F Magige
- Department of Zoology and Wildlife Conservation, University of Dar es Salaam (UDSM), P.O. Box 35064, Dar es Salaam, Tanzania
| | - I M Mfunda
- Division of Policy & Planning, Ministry of Natural Resources and Tourism (MNRT), P.O. Box 9372, Dar es Salaam, Tanzania
| | - A Mwakatobe
- Tanzania Wildlife Research Institute (TAWIRI), Box 661, Arusha, Tanzania
| | - J Ntalwila
- Tanzania Wildlife Research Institute (TAWIRI), Box 661, Arusha, Tanzania
| | - J W Nyahongo
- School of Biological Sciences, College of Natural and Mathematical Sciences, University of Dodoma (UDOM), P.O. Box 259, Dodoma, Tanzania
| | - V Runyoro
- Ngorongoro Conservation Area Authority, (NCAA), P.O. Box 1, Ngorongoro Crater, Arusha, Tanzania
| | - E Røskaft
- Department of Biology, Norwegian University of Science and Technology (NTNU), NO 7491, Trondheim, Norway
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108
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Cinotti GA, Hassan S. Disorders of sodium metabolism in renal disease. Contrib Nephrol 2015; 106:53-8. [PMID: 8174377 DOI: 10.1159/000422924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- G A Cinotti
- Division of Nephrology, University of Rome La Sapienza, Italy
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109
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Eriksson A, Österroos A, Hassan S, Gullbo J, Rickardson L, Jarvius M, Nygren P, Fryknäs M, Höglund M, Larsson R. Drug screen in patient cells suggests quinacrine to be repositioned for treatment of acute myeloid leukemia. Blood Cancer J 2015; 5:e307. [PMID: 25885427 PMCID: PMC4450329 DOI: 10.1038/bcj.2015.31] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 03/06/2015] [Indexed: 01/21/2023] Open
Abstract
To find drugs suitable for repositioning for use against leukemia, samples from patients with chronic lymphocytic, acute myeloid and lymphocytic leukemias as well as peripheral blood mononuclear cells (PBMC) were tested in response to 1266 compounds from the LOPAC1280 library (Sigma). Twenty-five compounds were defined as hits with activity in all leukemia subgroups (<50% cell survival compared with control) at 10 μM drug concentration. Only one of these compounds, quinacrine, showed low activity in normal PBMCs and was therefore selected for further preclinical evaluation. Mining the NCI-60 and the NextBio databases demonstrated leukemia sensitivity and the ability of quinacrine to reverse myeloid leukemia gene expression. Mechanistic exploration was performed using the NextBio bioinformatic software using gene expression analysis of drug exposed acute myeloid leukemia cultures (HL-60) in the database. Analysis of gene enrichment and drug correlations revealed strong connections to ribosomal biogenesis nucleoli and translation initiation. The highest drug–drug correlation was to ellipticine, a known RNA polymerase I inhibitor. These results were validated by additional gene expression analysis performed in-house. Quinacrine induced early inhibition of protein synthesis supporting these predictions. The results suggest that quinacrine have repositioning potential for treatment of acute myeloid leukemia by targeting of ribosomal biogenesis.
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Affiliation(s)
- A Eriksson
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - A Österroos
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - S Hassan
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - J Gullbo
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - L Rickardson
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - M Jarvius
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - P Nygren
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - M Fryknäs
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - M Höglund
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - R Larsson
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
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Hassan S, Eisma R, Malhas A, Soames R, Harry L. Surgical simulation flexor tendon repair using Thiel cadavers: a comparison with formalin embalmed cadavers and porcine models. J Hand Surg Eur Vol 2015; 40:246-9. [PMID: 24436356 DOI: 10.1177/1753193413520281] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
UNLABELLED The aim of this study was to compare Thiel-embalmed cadavers with formalin-embalmed cadavers and porcine models in the surgical simulation repair of a Zone II flexor tendon division. Nine participants were recruited to the study. The models were assessed using a five-point scale. Assessment was divided into tissue quality, surgical approach and identification of structures. Thiel cadavers rated consistently higher compared with the formalin and porcine models (mean 37 SD 2, 22 SD 6 and 23 SD 5, respectively). Thiel cadavers recorded an average tendon glide of 21 mm SD 5, formalin cadavers 2 mm SD 2 and the porcine model 6 mm SD 2. We have demonstrated the benefit of Thiel embalming, with flexibility of tissues allowing testing of the repair of a flexor tendon in a realistic anatomical model. LEVEL OF EVIDENCE Level V.
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Affiliation(s)
- S Hassan
- Department for Plastic and Reconstructive Surgery, Ninewells Hospital and Medical School, Dundee, UK
| | - R Eisma
- Centre for Anatomy and Human Identification, University of Dundee, Dundee, UK
| | - A Malhas
- Department of Orthopaedics and Trauma Surgery, Ninewells Hospital and Medical School, Dundee, UK
| | - R Soames
- Centre for Anatomy and Human Identification, University of Dundee, Dundee, UK
| | - L Harry
- Department for Plastic and Reconstructive Surgery, Ninewells Hospital and Medical School, Dundee, UK
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112
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Bui C, Bethmont A, Chughtai AA, Gardner L, Sarkar S, Hassan S, Seale H, MacIntyre CR. A Systematic Review of the Comparative Epidemiology of Avian and Human Influenza A H5N1 and H7N9 - Lessons and Unanswered Questions. Transbound Emerg Dis 2015; 63:602-620. [DOI: 10.1111/tbed.12327] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Indexed: 11/29/2022]
Affiliation(s)
- C. Bui
- School of Public Health and Community Medicine; University of New South Wales; Sydney NSW Australia
| | - A. Bethmont
- School of Public Health and Community Medicine; University of New South Wales; Sydney NSW Australia
| | - A. A. Chughtai
- School of Public Health and Community Medicine; University of New South Wales; Sydney NSW Australia
| | - L. Gardner
- School of Civil and Environmental Engineering; University of New South Wales; Sydney NSW Australia
| | - S. Sarkar
- Section of Integrative Biology; University of Texas at Austin; Austin TX USA
| | - S. Hassan
- School of Public Health and Community Medicine; University of New South Wales; Sydney NSW Australia
| | - H. Seale
- School of Public Health and Community Medicine; University of New South Wales; Sydney NSW Australia
| | - C. R. MacIntyre
- School of Public Health and Community Medicine; University of New South Wales; Sydney NSW Australia
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Saeed A, Ejaz SA, Khurshid A, Hassan S, al-Rashida M, Latif M, Lecka J, Sévigny J, Iqbal J. Synthesis, characterization and biological evaluation of N-(2,3-dimethyl-5-oxo-1-phenyl-2,5-dihydro-1H-pyrazol-4-yl)benzamides. RSC Adv 2015. [DOI: 10.1039/c5ra17568b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Comparison of active site residues of modelled h-GCAP with template h-PLAP.
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Affiliation(s)
- Aamer Saeed
- Department of Chemistry
- Quaid-I-Azam University
- Islamabad
- Pakistan
| | - Syeda Abida Ejaz
- Centre for Advanced Drug Research
- COMSATS Institute of Information Technology
- Abbottabad 22060
- Pakistan
| | - Asma Khurshid
- Department of Chemistry
- Quaid-I-Azam University
- Islamabad
- Pakistan
| | - Sidra Hassan
- Centre for Advanced Drug Research
- COMSATS Institute of Information Technology
- Abbottabad 22060
- Pakistan
| | - Mariya al-Rashida
- Department of Chemistry
- Forman Christian College (A Chartered University)
- Lahore
- Pakistan
| | - Muhammad Latif
- Medicinal/Pharmaceutical Chemistry Laboratory
- Korea Research Institute of Chemical Technology
- Daejeon 305-600
- South Korea
| | - Joanna Lecka
- Département de microbiologie-infectiologie et d'immunologie
- Faculté de Médecine
- Université Laval
- Québec
- Canada
| | - Jean Sévigny
- Département de microbiologie-infectiologie et d'immunologie
- Faculté de Médecine
- Université Laval
- Québec
- Canada
| | - Jamshed Iqbal
- Centre for Advanced Drug Research
- COMSATS Institute of Information Technology
- Abbottabad 22060
- Pakistan
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Hassan S, Ullrich A, Müller TJJ. Consecutive three-component synthesis of (hetero)arylated propargyl amides by chemoenzymatic aminolysis–Sonogashira coupling sequence. Org Biomol Chem 2015; 13:1571-6. [DOI: 10.1039/c4ob02386b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(Hetero)arylated propargyl amides are efficiently prepared by consecutive chemoenzymatic three-component synthesis based upon lipase catalyzed aminolysis followed by Sonogashira coupling.
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Affiliation(s)
- Sidra Hassan
- Lehrstuhl für Organische Chemie
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- Universitätsstraße 1
- Düsseldorf
| | - Anja Ullrich
- Lehrstuhl für Organische Chemie
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- Universitätsstraße 1
- Düsseldorf
| | - Thomas J. J. Müller
- Lehrstuhl für Organische Chemie
- Institut für Organische Chemie und Makromolekulare Chemie
- Heinrich-Heine-Universität Düsseldorf
- Universitätsstraße 1
- Düsseldorf
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Mittal C, Hassan S, Arshad S, Jeepalyam S, Bruni S, Miceli M, Jacobsen G, Abouljoud M, Bajjoka I, Ramesh M, Alangaden G. Clostridium difficile infection in liver transplant recipients: a retrospective study of rates, risk factors and outcomes. Am J Transplant 2014; 14:1901-7. [PMID: 24902610 DOI: 10.1111/ajt.12798] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [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: 12/26/2013] [Revised: 04/23/2014] [Accepted: 04/23/2014] [Indexed: 01/25/2023]
Abstract
Clostridium difficile infection (CDI) occurs in 3-7% of liver transplant recipients (LTR). However, few data exist on the recent epidemiology, predictors and outcomes of CDI in LTR. A cohort study was performed including LTR from 2000 to 2010 at a tertiary care hospital in Detroit. CDI was defined as diarrhea with a stool C. difficile positive test. Data analyzed included demographics, comorbidities, length of stay (LOS), severity of CDI, rates of recurrence (<12 weeks), relapse (<4 weeks) and overall mortality. Predictors of CDI were calculated using Cox proportional hazard model; 970 LTR were followed for years. Overall prevalence of CDI was 18.9%. Incidence of CDI within 1 year of transplant was 12.4%. Severe CDI occurred in 29.1%. CDI recurrence and relapse rates were 16.9% and 9.7%, respectively. Independent predictors of CDI were year of transplant (hazard ratio [HR] 1.137, 95% confidence interval [CI] 1.06-1.22; p < 0.001), white race (105/162 whites, HR 1.47, 95% CI 1.03-2.1; p = 0.035), Model for End-Stage Liver Disease score (HR 1.03, 95% CI 1.01-1.045, p = 0.003) and LOS (HR 1.01, 95% CI 1.005-1.02, p < 0.001). Significant mortality was observed among LTR with CDI compared to those without CDI (p = 0.003). We concluded that CDI is common among LTR and is associated with higher mortality.
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Affiliation(s)
- C Mittal
- Division of Infectious Diseases, Henry Ford Health System, Detroit, MI
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Abstract
Introduction: Ovarian neoplasm’s are an important cause of morbidity and mortality in women. Frozen section is widely used in the intra-operative assessment of patients with ovarian tumors to provide guidance for an appropriate surgical management. It is crucial to know intra-operatively, the exact nature of the tumor to determine the extent of surgery. It is in these situations where the Intraoperative frozen section technique plays its role in making this distinction. Methodology: Females of all ages undergoing planned surgeries for ovarian tumors at Aga Khan Hospital or outside referrals with request for intra operative diagnosis was included. Age of the patient, duration of the lesion and clinical impression were recorded and frozen section was performed. Results: Thirty four cases of ovarian tumors received for frozen section were included in this study. The calculated sensitivity was94.4%, specificity was 93.8%, positive predictive value was 94.4% and negative predictive value was 93.8%. Conclusion: This study shows that frozen section is a highly sensitive and specific method for the rapid diagnosis of ovarian tumors. DOI: http://dx.doi.org/10.3126/ajms.v6i1.10798 Asian Journal of Medical Sciences Vol.6(1) 2015 77-80
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Fotheringham J, Campbell MJ, Wilkie M, Lopes Barreto D, Sampimon DE, Struijk DG, Krediet RT, Portoles J, Janeiro D, Tato AM, Lopez P, Castellano I, Del Peso G, Rivera M, Fernandez-Reyes MJ, Ortega M, Martinez De Miguel P, Caparros G, Selgas R, Sarmento-Dias M, Santos-Araujo C, Poinhos R, Soares Silva I, Simoes Silva L, Sousa MJ, Correia F, Pestana M, Kang SH, Cho KH, Park JW, Yoon KW, Do JY, Ponce D, Banin V, Bueloni T, Caramori J, Balbi A, Barretti P, Virzi GM, Na HY, Kim YB, Jo YI, Griva K, Yu Z, Foo M, Chang KY, Kim YK, Kim YO, Song HC, Yang CW, Kim SH, Kim YL, Kim YS, Kang SW, Kim NH, Kim HW, Waniewski J, Poleszczuk J, Antosiewicz S, Baczy ski D, Pietribiasi M, Wankowicz Z, Alhwiesh A, Nasreldin MA, Saeed I, Braide M, Milan Manani S, I{middle dot}Nal S, Okyay GU, Ulu MS, Kidir V, Altuntas A, Ahsen A, Unverdi S, Yuksel S, Duranay M, Sezer MT, Mushahar L, Lim WM, Mohd Yusuf WS, Sivathasan S, Ancarani P, Parodi D, Terrile O, Scofferi S, Lenzora G, Martins AR, Vizinho R, Branco PQ, Gaspar MA, Barata JD, Dimkovic N, Lazarevic T, Zdenka M, Pljesa S, Marinkovic J, Djukanovic L, Ahbap E, Kara E, Sahutoglu T, Basturk T, Koc Y, Sakaci T, Sevinc M, Akgol C, Unsal A, Vlahu CA, De Graaff M, Vink H, Struijk DG, Krediet RT, Zeiler M, Marani M, Agostinelli RM, Monteburini T, Marinelli R, Di Luca M, Santarelli S, Moreiras-Plaza M, Blanco-Garcia R, Martin-Baez I, Fernandez-Fleming F, Beato-Coo L, Chang JH, Ro H, Jung JY, Lee HH, Moon SJ, Chung W, Hassan K, Hassan D, Shturman A, Hassan F, Rubinchik I, Hassan S, Atar S, Witoon R, Matsuda A, Tayama Y, Ogawa T, Kogure Y, Okazaki S, Hatano M, Kiba T, Iwashita T, Shimizu T, Hasegawa H, Mitarai T, Rroji ( Molla) M, Seferi S, Burazeri G, Thereska N, Theodoridis M, Gioka T, Bounta T, Kriki P, Mourvati E, Thodis E, Roumeliotis A, Passadakis P, Vargemezis V, Bek S, Eren N, Eraldemir FC, Batman A, Derviso lu E. PERITONEAL DIALYSIS 1. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu154] [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: 11/13/2022] Open
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El-Awady R, Saber M, Semreen M, Tl-Tel T, El-Ansassy S, Sahib R, Hassan S, Rahimi M, El-Wahiby D, Deire Y. P0185 Molecular mechanisms of a novel imidazopyridine Cdk-inhibitor alone and in combination with doxorubicin. Eur J Cancer 2014. [DOI: 10.1016/j.ejca.2014.03.229] [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: 10/25/2022]
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Vidyavijayan KK, Hassan S, Precilla LK, Swaminathan S, Hanna LE. Comparative codon usage analysis of HIV-1 and HIV-2 genomes. BMC Infect Dis 2014. [PMCID: PMC4080354 DOI: 10.1186/1471-2334-14-s3-e2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Lohana P, Hassan S, Watson S. Integra™ in burns reconstruction: Our experience and report of an unusual immunological reaction. Ann Burns Fire Disasters 2014; 27:17-21. [PMID: 25249843 PMCID: PMC4158443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Indexed: 06/03/2023]
Abstract
Limited availability of autologous donor sites poses significant challenges for soft-tissue reconstruction in severe and complex burns. Integra™ is a bi-layered dermal regeneration template (DRT) which has played a significant role in soft tissue reconstruction since its initial use for full-thickness burn defects. The purpose of this study is to report our institutional experience of Integra™ in burns management over a 4-year period and highlight an unusual reaction to its second application. Twenty-four cases underwent Integra™ resurfacing for burn management from September 2007 to August 2011. Data on patient demographics, including co-morbidities, indications, operative data, complications, secondary reconstruction and outcomes were recorded. Integra™ was used in 24 patients on 37 anatomical sites. One patient died 3 weeks after injury and first stage of Integra™ application, and was therefore excluded from the study. Split-thickness skin grafting was performed within an average of 23 days (with a range of 7-55 days) and mean graft take was 87% (with a range of 75-100%). Five cases of local infection at the graft site were recorded. The average length of hospital stay was 47 days (with a range of 1-162 days). The mean follow-up time was 17 months (with a range of 9-34 months). Overall, our experience with DRT was mixed, that is to say we found it satisfactory with acute burns resurfacing but very good with secondary reconstruction. The main advantage of Integra™ is its immediate availability in unlimited quantities for soft-tissue reconstruction in major and complex burns. The main drawbacks are financial implications, twostage procedure, complex wound care and risk of infection. We believe that Integra™ can be considered as a promising modality in burns management.
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Affiliation(s)
- P. Lohana
- Canniesburn Plastic Surgery Unit, Jubilee Building, Royal Infirmary, Glasgow, United Kingdom
| | - S. Hassan
- Canniesburn Plastic Surgery Unit, Jubilee Building, Royal Infirmary, Glasgow, United Kingdom
| | - S.B. Watson
- Canniesburn Plastic Surgery Unit, Jubilee Building, Royal Infirmary, Glasgow, United Kingdom
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Gallagher S, Kapur A, Lovell MJ, Jones DA, Kirkwood A, Hassan S, Archbold RA, Wragg A, Uppal R, Yaqoob MM. Impact of diabetes mellitus and renal insufficiency on 5-year mortality following coronary artery bypass graft surgery: a cohort study of 4869 UK patients. Eur J Cardiothorac Surg 2014; 45:1075-81. [DOI: 10.1093/ejcts/ezt630] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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Affiliation(s)
- F A Ganie
- Department of Cardiovascular and Thoracic Surgery, SKIMS, Soura, Kashmir, India
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Hassan S, Eisma R, Soames R, Waterston S, Harry L. Raising of microvascular flaps using the Thiel cadaveric model. J Plast Reconstr Aesthet Surg 2013; 67:e107-8. [PMID: 24365567 DOI: 10.1016/j.bjps.2013.12.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Accepted: 12/02/2013] [Indexed: 11/16/2022]
Affiliation(s)
- S Hassan
- Department of Plastic and Reconstructive Surgery, Ninewells Hospital and Medical School, Dundee, UK.
| | - R Eisma
- Centre for Anatomy and Human Identification, College of Art Science and Engineering, University of Dundee, UK
| | - R Soames
- Centre for Anatomy and Human Identification, College of Art Science and Engineering, University of Dundee, UK
| | - S Waterston
- Department of Plastic and Reconstructive Surgery, Ninewells Hospital and Medical School, Dundee, UK
| | - L Harry
- Department of Plastic and Reconstructive Surgery, Ninewells Hospital and Medical School, Dundee, UK
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Hassan S, Mittal C, Amer S, Khalid F, Patel A, Delbusto R, Samuel L, Alangaden G, Ramesh M. Currently recommended BK virus (BKV) plasma viral load cutoff of ≥4 log10/mL underestimates the diagnosis of BKV-associated nephropathy: a single transplant center experience. Transpl Infect Dis 2013; 16:55-60. [PMID: 24283677 DOI: 10.1111/tid.12164] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [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: 12/22/2012] [Revised: 02/16/2013] [Accepted: 05/13/2013] [Indexed: 12/16/2022]
Abstract
BACKGROUND BK virus (BKV)-associated nephropathy (BKVAN) is a major cause of renal dysfunction and graft loss in renal transplant recipients. Monitoring plasma BK viral load (BKVL) is the recommended screening tool to predict BKVAN. American Society of Transplantation (AST) guidelines define a BKVL of ≥4 log10/mL (10,000 copies) as presumptive BKVAN and recommend reduction in immunosuppression. We evaluated the clinical sensitivity of the quantitative BKV DNA assay in predicting risk for BKVAN using the AST-recommended BKVL cutoff. METHODS In a retrospective, single-center study, all patients who underwent renal transplant at Henry Ford Hospital from January 2008 to August 2011 were analyzed (n = 490). Plasma BKVL Assay A (commercial large T antigen-based polymerase chain reaction [PCR]) was done in all patients. Renal biopsy was done if there was a rise in serum creatinine ≥0.5 mg from baseline. BKVAN was confirmed by biopsy. As a subset to this study, from the same cohort, data for a set of 20 consecutive Assays A and B (in-house VP1-based PCR assay) from 15 patients over a period of 3 months were collected. Differences in physicians' clinical decision-making (CDM) were analyzed between the 2 assays using chi-square test. RESULTS A total of 413 patients met the inclusion criteria, of which 222 patients had BK viremia. Among the 248 patients who had a renal biopsy done, 31 (12.5%) were found to have BKVAN. Eleven of the 31 (35%) patients had BKVL consistently <4 log10/mL, and thus were not diagnosed to have BKVAN using the AST-recommended BKVL cutoff of ≥4 log10/mL. A total of 8 patients lost their graft owing to BKVAN, including 3 patients with BKVL <4 log10/mL. Using a cutoff point of plasma BKVL of ≥4 log10/mL, the sensitivity, specificity, positive predictive value, and negative predicative value of the PCR Assay A for the diagnosis of biopsy-proven BKVAN were 64.5%, 98.4%, 87.0%, and 94.5%, respectively, and for the diagnosis of presumptive nephropathy were found to be 76.6%, 99.4%, 95.8%, and 96.4%, respectively. In the second part of the study, presumptive nephropathy was detected in 8 samples using Assay A and 14 samples using Assay B. Six samples in Assay A would have led to no changes in the CDM in terms of reduction in immunosuppression. Kidney biopsy was carried out in 5 patients, 4 of whom had BKVAN and had Assay B log count of ≥5. If Assay A had been used in CDM, BKVAN would have been missed in 1 patient. CONCLUSION Utilizing the current AST guideline cutoff of ≥4 log10 /mL, the PCR Assay A underestimated the diagnosis of BKVAN. Urgent standardization of the various BKVL assays and establishment of universal cutoff points is imperative to avoid BKVAN-related graft loss.
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Affiliation(s)
- S Hassan
- Department of Internal Medicine, Henry Ford Hospital, Detroit, Michigan, USA
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Fyumagwa R, Gereta E, Hassan S, Kideghesho JR, Kohi EM, Keyyu J, Magige F, Mfunda IM, Mwakatobe A, Ntalwila J, Nyahongo JW, Runyoro V, Røskaft E. Roads as a threat to the Serengeti ecosystem. Conserv Biol 2013; 27:1122-1125. [PMID: 23869948 DOI: 10.1111/cobi.12116] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Accepted: 01/03/2013] [Indexed: 06/02/2023]
Affiliation(s)
- R Fyumagwa
- Tanzania Wildlife Research Institute (TAWIRI), Box 661, Arusha, Tanzania
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Bakshi J, Hassan S, D’Cruz D, Chan A. Rituximab therapy in refractory macrophage activation syndrome secondary to systemic lupus erythematosus. Lupus 2013; 22:1544-6. [DOI: 10.1177/0961203313504634] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- J Bakshi
- Rheumatology Department, Royal Berkshire Hospital, Reading, UK
| | - S Hassan
- Haematology Department, Royal Berkshire Hospital, Reading, UK
| | - D D’Cruz
- Rheumatology Department, St Thomas’ Hospital, London, UK
| | - A Chan
- Rheumatology Department, Royal Berkshire Hospital, Reading, UK
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Tam VC, Ko YJ, Mittmann N, Cheung MC, Kumar K, Hassan S, Chan KKW. Cost-effectiveness of systemic therapies for metastatic pancreatic cancer. ACTA ACUST UNITED AC 2013; 20:e90-e106. [PMID: 23559890 DOI: 10.3747/co.20.1223] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE Gemcitabine and capecitabine (gem-cap), gemcitabine and erlotinib (gem-e), and folfirinox (5-fluorouracil-leucovorin-irinotecan-oxaliplatin) are new treatment options for metastatic pancreatic cancer, but they are also more expensive and potentially more toxic than gemcitabine alone (gem). We conducted a cost-effectiveness analysis of these treatment options compared with gem. METHODS A Markov model was constructed to examine costs and outcomes of gem-cap, gem-e, folfirinox, and gem in patients with metastatic pancreatic cancer from the perspective of a government health care plan. Ontario health economic and costing data (2010 Canadian dollars) were used. Efficacy data for the treatments were obtained from the published literature. Resource utilization data were derived from a chart review of consecutive metastatic patients treated for pancreatic cancer at Princess Margaret Hospital, Toronto, Ontario, 2008-2009, and supplemented with data from the literature. Utilities were obtained by surveying medical oncologists across Canada using the EQ-5D. Incremental cost-effectiveness ratios (icers) were calculated. RESULTS The icers for gem-cap, gem-e, and folfirinox compared with gem were, respectively, CA$84,299, CA$153,631, and CA$133,184 per quality-adjusted life year (qaly). The model was driven mostly by drug acquisition costs. Given a willingness-to-pay (wtp) threshold greater than CA$130,000/qaly, folfirinox was most cost-effective treatment. When the wtp threshold was less than CA$80,000/qaly, gem alone was most cost-effective. The gem-e option was dominated by the other treatments. CONCLUSIONS The most cost-effective treatment for metastatic pancreatic cancer depends on the societal wtp threshold. If the societal wtp threshold were to be relatively high or if drug costs were to be substantially reduced, folfirinox might be cost-effective.
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Affiliation(s)
- V C Tam
- Division of Medical Oncology and Hematology, Sunnybrook Odette Cancer Centre, University of Toronto, Toronto, ON. ; Department of Oncology, Tom Baker Cancer Centre, University of Calgary, Calgary, AB
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Mehta P, Holder S, Fisher B, Vincent T, Nadesalingam K, Maciver H, Shingler W, Bakshi J, Hassan S, D'Cruz D, Chan A, Litwic AE, McCrae F, Seth R, McCrae F, Nandagudi A, Jury E, Isenberg D, Karjigi U, Paul A, Rees F, O'Dowd E, Kinnear W, Johnson S, Lanyon P, Bakshi J, Stevens R, Narayan N, Marguerie C, Robinson H, Ffolkes L, Worsnop F, Ostlere L, Kiely P, Dharmapalaiah C, Hassan N, Nandagudi A, Bharadwaj A, Skibinska M, Gendi N, Davies EJ, Akil M, Kilding R, Ramachandran Nair J, Walsh M, Farrar W, Thompson RN, Borukhson L, McFadyen C, Singh D, Rajagopal V, Chan AML, Wearn Koh L, Christie JD, Croot L, Gayed M, Disney B, Singhal S, Grindulis K, Reynolds TD, Conway K, Williams D, Quin J, Dean G, Churchill D, Walker-Bone KE, Goff I, Reynolds G, Grove M, Patel P, Lazarus MN, Roncaroli F, Gabriel C, Kinderlerer AR, Nikiphorou E, Hall FC, Bruce E, Gray L, Krutikov M, Wig S, Bruce I, D'Agostino MA, Wakefield R, Berner Hammer H, Vittecoq O, Galeazzi M, Balint P, Filippucci E, Moller I, Iagnocco A, Naredo E, Ostergaard M, Gaillez C, Kerselaers W, Van Holder K, Le Bars M, Stone MA, Williams F, Wolber L, Karppinen J, Maatta J, Thompson B, Atchia I, Lorenzi A, Raftery G, Platt P, Platt PN, Pratt A, Turmezei TD, Treece GM, Gee AH, Poole KE, Chandratre PN, Roddy E, Clarson L, Richardson J, Hider S, Mallen C, Lieberman A, Prouse PJ, Mahendran P, Samarawickrama A, Churchill D, Walker-Bone KE, Ottery FD, Yood R, Wolfson M, Ang A, Riches P, Thomson J, Nuki G, Humphreys J, Verstappen SM, Chipping J, Hyrich K, Marshall T, Symmons DP, Roy M, Kirwan JR, Marshall RW, Matcham F, Scott IC, Rayner L, Hotopf M, Kingsley GH, Scott DL, Steer S, Ma MH, Dahanayake C, Scott IC, Kingsley G, Cope A, Scott DL, Dahanayake C, Ma MH, Scott IC, Kingsley GH, Cope A, Scott DL, Wernham A, Ward L, Carruthers D, Deeming A, Buckley C, Raza K, De Pablo P, Nikiphorou E, Carpenter L, Jayakumar K, Solymossy C, Dixey J, Young A, Singh A, Penn H, Ellerby N, Mattey DL, Packham J, Dawes P, Hider SL, Ng N, Humby F, Bombardieri M, Kelly S, Di Cicco M, Dadoun S, Hands R, Rocher V, Kidd B, Pyne D, Pitzalis C, Poore S, Hutchinson D, Low A, Lunt M, Mercer L, Galloway J, Davies R, Watson K, Dixon W, Symmons D, Hyrich K, Mercer L, Lunt M, Low A, Galloway J, Watson KD, Dixon WG, Symmons D, Hyrich KL, Low A, Lunt M, Mercer L, Bruce E, Dixon W, Hyrich K, Symmons D, Malik SP, Kelly C, Hamilton J, Heycock C, Saravanan V, Rynne M, Harris HE, Tweedie F, Skaparis Y, White M, Scott N, Samson K, Mercieca C, Clarke S, Warner AJ, Humphreys J, Lunt M, Marshall T, Symmons D, Verstappen S, Chan E, Kelly C, Woodhead FA, Nisar M, Arthanari S, Dawson J, Sathi N, Ahmad Y, Koduri G, Young A, Kelly C, Chan E, Ahmad Y, Woodhead FA, Nisar M, Arthanari S, Dawson J, Sathi N, Koduri G, Young A, Cumming J, Stannett P, Hull R, Metsios G, Stavropoulos Kalinoglou A, Veldhuijzen van Zanten JJ, Nightingale P, Koutedakis Y, Kitas GD, Nikiphorou E, Dixey J, Williams P, Kiely P, Walsh D, Carpenter L, Young A, Perry E, Kelly C, de-Soyza A, Moullaali T, Eggleton P, Hutchinson D, Veldhuijzen van Zanten JJ, Metsios G, Stavropoulos-Kalinoglou A, Sandoo A, Kitas GD, de Pablo P, Maggs F, Carruthers D, Faizal A, Pugh M, Jobanputra P, Kehoe O, Cartwright A, Askari A, El Haj A, Middleton J, Aynsley S, Hardy J, Veale D, Fearon U, Wilson G, Muthana M, Fossati G, Healy L, Nesbitt A, Becerra E, Leandro MJ, De La Torre I, Cambridge G, Nelson PN, Roden D, Shaw M, Davari Ejtehadi H, Nevill A, Freimanis G, Hooley P, Bowman S, Alavi A, Axford J, Veitch AM, Tugnet N, Rylance PB, Hawtree S, Muthana M, Aynsley S, Mark Wilkinson J, Wilson AG, Woon Kam N, Filter A, Buckley C, Pitzalis C, Bombardieri M, Croft AP, Naylor A, Zimmermann B, Hardie D, Desanti G, Jaurez M, Muller-Ladner U, Filer A, Neumann E, Buckley C, Movahedi M, Lunt M, Ray DW, Dixon WG, Burmester GR, Matucci-Cerinic M, Navarro-Blasco F, Kary S, Unnebrink K, Kupper H, Mukherjee S, Cornell P, Richards S, Rahmeh F, Thompson PW, Westlake SL, Javaid MK, Batra R, Chana J, Round G, Judge A, Taylor P, Patel S, Cooper C, Ravindran V, Bingham CO, Weinblatt ME, Mendelsohn A, Kim L, Mack M, Lu J, Baker D, Westhovens R, Hewitt J, Han C, Keystone EC, Fleischmann R, Smolen J, Emery P, Genovese M, Doyle M, Hsia EC, Hart JC, Lazarus MN, Kinderlerer AR, Harland D, Gibbons C, Pang H, Huertas C, Diamantopoulos A, Dejonckheere F, Clowse M, Wolf D, Stach C, Kosutic G, Williams S, Terpstra I, Mahadevan U, Smolen J, Emery P, Ferraccioli G, Samborski W, Berenbaum F, Davies O, Koetse W, Bennett B, Burkhardt H, Weinblatt ME, Fleischmann R, Davies O, Luijtens K, van der Heijde D, Mariette X, van Vollenhoven RF, Bykerk V, de Longueville M, Arendt C, Luijtens K, Cush J, Khan A, Maclaren Z, Dubash S, Chalam VC, Sheeran T, Price T, Baskar S, Mulherin D, Molloy C, Keay F, Heritage C, Douglas B, Fleischmann R, Weinblatt ME, Schiff MH, Khanna D, Furst DE, Maldonado MA, Li W, Sasso EH, Emerling D, Cavet G, Ford K, Mackenzie-Green B, Collins D, Price E, Williamson L, Golla J, Vagadia V, Morrison E, Tierney A, Wilson H, Hunter J, Ma MH, Scott DL, Reddy V, Moore S, Ehrenstein M, Benson C, Wray M, Cairns A, Wright G, Pendleton A, McHenry M, Taggart A, Bell A, Bosworth A, Cox M, Johnston G, Shah P, O'Brien A, Jones P, Sargeant I, Bukhari M, Nusslein H, Alten R, Galeazzi M, Lorenz HM, Boumpas D, Nurmohamed MT, Bensen W, Burmester GR, Peter HH, Rainer F, Pavelka K, Chartier M, Poncet C, Rauch C, Le Bars M, Lempp H, Hofmann D, Adu A, Congreve C, Dobson J, Rose D, Simpson C, Wykes T, Cope A, Scott DL, Ibrahim F, Schiff M, Alten R, Weinblatt ME, Nash P, Fleischmann R, Durez P, Kaine J, Delaet I, Kelly S, Maldonado M, Patel S, Genovese M, Jones G, Sebba A, Lepley D, Devenport J, Bernasconi C, Smart D, Mpofu C, Gomez-Reino JJ, Verma I, Kaur J, Syngle A, Krishan P, Vohra K, Kaur L, Garg N, Chhabara M, Gibson K, Woodburn J, Telfer S, Buckley F, Finckh A, Huizinga TW, Dejonckheere F, Jansen JP, Genovese M, Sebba A, Rubbert-Roth A, Scali JJ, Alten R, Kremer JM, Pitts L, Vernon E, van Vollenhoven RF, Sharif MI, Das S, Emery P, Maciver H, Shingler W, Helliwell P, Sokoll K, Vital EM. Case Reports * 1. A Late Presentation of Loeys-Dietz Syndrome: Beware of TGF Receptor Mutations in Benign Joint Hypermobility. Rheumatology (Oxford) 2013. [DOI: 10.1093/rheumatology/ket197] [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: 11/12/2022] Open
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Norris R, Hassan S, Shentall G. EP-1268: An assessment of the Elekta Fraxion immobilisation system for image guided stereotactic radiosurgery. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33574-x] [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: 10/23/2022]
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Yam YY, Hoh BP, Othman NH, Hassan S, Yahya MM, Zakaria Z, Ankathil R. Somatic copy-neutral loss of heterozygosity and copy number abnormalities in Malaysian sporadic colorectal carcinoma patients. Genet Mol Res 2013; 12:319-27. [PMID: 23420356 DOI: 10.4238/2013.february.7.1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Colorectal cancer is one of the most common cancers in many countries, including Malaysia. The accumulation of genomic alterations is an important feature of colorectal carcinogenesis. A better understanding of the molecular events underlying the stages of colorectal carcinogenesis might be helpful in the detection and management of the disease. We used a commercially available single-nucleotide polymorphism genotyping array to detect both copy number abnormalities (CNAs) and copy-neutral loss of heterozygosity (LOH) in sporadic colorectal carcinomas. Matched tumor and normal tissues of 13 colorectal carcinomas (Dukes' stages A-D) were analyzed using a 250K single nucleotide polymorphism array. An additional assay was performed to determine the microsatellite instability status by using the National Cancer Institute-recommended BAT-26 panel. In general, copy number gain (92.3%) was most common, followed by copy number loss (53.8%) and copy-neutral LOH (46.2%). Frequent CNAs of gains and losses were observed on chromosomes 7p, 8, 13q, 17p, 18q, and 20q, and copy-neutral LOH was observed on chromosomes 2, 6, 12, 13q, 14q, 17, 20p, 19q, and 22q. Even though genomic alterations are associated with colorectal cancer progression, our results showed that DNA CNAs and copy-neutral LOH do not reflect disease progression in at least 50% tumors. Copy-neutral LOH was observed in both early and advanced tumors, which favors the involvement of these genomic alterations in the early stages of tumor development.
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Affiliation(s)
- Y Y Yam
- Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, Kubang Kerian, Kelantan, Malaysia
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Alirhayim Z, Qureshi W, Shafiq A, Hassan S. Aortic arch variant presenting as an acute ST elevation myocardial infarction. Case Reports 2013; 2013:bcr-2012-007962. [DOI: 10.1136/bcr-2012-007962] [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: 11/04/2022] Open
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Narasimman S, Nallusamy M, Hassan S. Review of oesophageal atresia and tracheoesophageal fistula in hospital sultanah bahiyah, alor star. Malaysia from january 2000 to december 2009. Med J Malaysia 2013; 68:48-51. [PMID: 23466767] [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: 06/01/2023]
Abstract
Oesophageal atresia (EA) and tracheoesophageal fistula (TEF) is one of the congenital anomaly occurring in the newborns with the incidence of 1 in 2500 births seen worldwide. A retrospective review of newborns admitted to Hospital Sultanah Bahiyah (HSB) from 1st January 2000 to 31st December 2009 was done. The objective was to look at the influence of birth weight, time of surgical intervention, presence of other congenital anomaly and presence of preoperative pneumonia to the immediate outcome (mortality) of the surgery. There were 47 patients with oesophageal atresia, out of which 26 (55%) were males and 21 (45%) females. The distribution of patients by race were 34 Malays (72%), 9 Chinese (19%) and 4 Indians (9%). The birth weight of the babies range from 0.8 kg to 4.0 kg and there was a significant association with the outcome of the surgery (p< 0.05). Most of the babies (20) were operated within 24 hours of presentation but there was no significant association to the outcome. 23 (49%) of them were born with congenital malformation and there was a significant association with the outcome of the surgery (p<0.05). Based on the chest roentgenogram, 20 (43%) of them had pneumonia with significant association with the outcome (p<0.05). The mortality rate is 23% and the causes of death were pneumonia (36%), renal failure (18%), cardiac malformation (18%) and multiple congenital malformations (28%). The outcome of EA and TEF is determined mainly by birth weight, congenital malformations and presence of preoperative pneumonia in HSB.
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Affiliation(s)
- S Narasimman
- Hospital Sultanah Bahiyah, Department of Surgery, Hospital Sultanah Bahiyah, Alor Star, Kedah, Malaysia.
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Hassan S, Imtiaz R, Ikram N, Baig MA, Safdar R, Salman M, Asghar RJ. Public health surveillance at a mass gathering: urs of Baba Farid, Pakpattan district, Punjab, Pakistan, December 2010. East Mediterr Health J 2013; 19 Suppl 2:S24-S28. [PMID: 24673095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The objective of this study was to identify health related problems encountered during an annual mass gathering in Pakpattan, Pakistan, the anniversary of the death (urs) of Baba Farid, and to make recommendations for planning and prevention activities. A surveillance system was established to capture health related data for the event. A list of reportable diseases was developed. Data were collected pre-, during, and post-event by health care workers trained for the purpose. A total of 5918 people reported to the 15 health care facilities providing services during the event; 58% of consultations were because of communicable diseases, 21% of which were respiratory tract infections and 26% gastrointestinal illness. Injuries accounted for 31% of cases and noncommunicable diseases for 11%. Prevalence of reportable disease during the event showed sizeable increases. No major disease outbreak was observed.
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Hassan V, Hassan S, Seyed-Javad P, Ahmad K, Asieh H, Maryam S, Farid F, Siavash A. Association between Serum 25 (OH) Vitamin D Concentrations and Inflammatory Bowel Diseases (IBDs) Activity. Med J Malaysia 2013; 68:34-38. [PMID: 23466764] [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: 06/01/2023]
Abstract
Inflammatory bowel diseases (IBDs) are immune mediated diseases affecting the gastrointestinal tract. Several environmental factors in concert with genetic susceptibilities can trigger IBDs. Recently, one of the important environmental factors contributing to the development of autoimmune diseases is vitamin D (VitD) deficiency. Furthermore, some new evidence points to VitD deficiency and its receptor dysfunction as an underlying factor for the emergence experimental IBDs. The aim of the current study was to evaluate the correlation between serum 25(OH)D concentrations and IBD activity in patients with ulcerative colitis or Crohn's disease. Sixty patients with confirmed diagnosis of IBD were recruited for a cross sectional study. Most of the identified confounders affecting serum VitD concentrations were excluded. Disease activity was assessed using validated questionnaires, including Truelove for Ulcerative Colitis and Crohn Disease Activity Index (CDAI) for Crohn disease. Serum 25(OH)D concentrations were determined by chemiluminescent assay. Serum 25(OH)D≤10 (ng/ml) was considered as VitD deficiency and 11≤25(OH)D<29(ng/ml) as VitD insufficiency. Mean serum 25(OH)D value was 13.1 ± 11.1(ng/ml) in IBD patients. Almost 95% of patients were vitamin D insufficient or deficient. Forty one percent of IBD patients had active disease. VitD deficiency was not associated with IBD activity (p=0.23). However, VitD deficiency was significantly associated with a history of IBD related intestinal surgery (p=0.001). In conclusion, this cross-sectional prospective study suggested that there is no association between vitamin D deficiency and disease activity in a relatively small number of IBD patients in a short period of time.
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Affiliation(s)
- V Hassan
- Mashhad University of Medical Sciences, Department of Internal Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Ghaem Hospital, Mashhad, Iran
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Khan F, D’Silva A, Ahmed S, Patel E, Hassan S, Patel ARC. P236 The Use of Local Anaesthesia For Arterial Blood Gas Sampling - A Multicentre Survey. Thorax 2012. [DOI: 10.1136/thoraxjnl-2012-202678.297] [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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137
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Hassan S, Qureshi W, Donthireddy V, Kuriakose P. Congenital von Willebrand's disease and clinical hypothyroidism. Haemophilia 2012; 19:242-5. [PMID: 23171382 DOI: 10.1111/hae.12065] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2012] [Indexed: 01/10/2023]
Abstract
Data from case reports and systematic reviews suggest an association of Hypothyroidism and Acquired von Willebrand's syndrome. It is not known if congenital von Willebrand's disease is associated with hypothyroidism in a similar way. The aim of this study was to identify the association of congenital von Willebrand's disease (VWD) with clinical hypothyroidism. A total of 350 cases of congenital VWD were initially screened from our institution database from 1985 to 2010. A careful review of patient records was carried out to see if patients truly had congenital VWD and coexisting clinical hypothyroidism. Patients with uncertain diagnoses or other bleeding disorders were excluded, leading to 197 patients remaining in the final sample. A random age- and sex-matched parallel control group was also obtained from the hospital database. Of 197 patients (mean age 43.8 ± 17.5 years, women 72%) of congenital VWD, 32/197 (16%) were diagnosed with clinical hypothyroidism, while only 11/197 (5.6%) of the matched controls were clinically hypothyroid. Univariate and multivariate analysis demonstrated that VWD was an independent predictor of developing clinical hypothyroidism (OR 3.45; 95% CI 1.65-7.22, P = 0.001). The proportion of patients diagnosed with clinical hypothyroidism was more in the VWD group (P < 0.0001). Our analysis shows a strong association of clinical hypothyroidism in patients with congenital VWD, but future studies will be required to delineate a pathological mechanism. In our opinion, clinicians should consider checking thyroid function in the newly diagnosed and established cases of congenital VWD.
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Affiliation(s)
- S Hassan
- Internal Medicine, Henry Ford Hospital, Detroit, MI, USA.
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Abstract
We present a case of accessory gallbladder demonstrating an anatomical variation not previously reported. While rare, accessory gallbladders are an important consideration if a cholecystectomy is to be performed. We also present a brief literature review of accessory gallbladders.
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Affiliation(s)
- S Hassan
- Department of General Surgery, Scunthorpe General Hospital, Scunthorpe DN15 7BH, UK
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139
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Henderson R, Kabengi N, Mantripragada N, Cabrera M, Hassan S, Thompson A. Anoxia-induced release of colloid- and nanoparticle-bound phosphorus in grassland soils. Environ Sci Technol 2012; 46:11727-11734. [PMID: 23017121 DOI: 10.1021/es302395r] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Particle-facilitated transport is a key mechanism of phosphorus (P) loss in agroecosystems. We assessed contributions of colloid- and nanoparticle-bound P (nPP; 1-415 nm) to total P released from grassland soils receiving biannual poultry litter applications since 1995. In laboratory incubations, soils were subjected to 7 days of anoxic conditions or equilibrated at pH 6 and 8 under oxic conditions and then the extract was size fractionated by differential centrifugation/ultrafiltration for analysis of P, Al, Fe, Si, Ti, and Ca. Selected samples were characterized by transmission electron microscopy-energy dispersive spectroscopy (TEM-EDS) and field flow fractionation (FFF-ICP-MS). Particles released were present as nanoaggregates with a mean diameter of 200-250 nm, composed of ~50-nm aluminosilicate flakes studded with Fe and Ti-rich clusters (<10 nm) that contained most of the P detected by EDS. Anoxic incubation of stimulated nPP release with seasonally saturated soils released more nPP and Fe(2+)(aq) than well-drained soils; whereas, nonreductive particle dispersion, accomplished by raising the pH, yielded no increase in nPP release. This suggests Fe acts as a cementing agent, binding to the bulk soil P-bearing colloids that can be released during reducing conditions. Furthermore, it suggests prior periodic exposure to anoxic conditions increases susceptibility to redox-induced P mobilization.
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Affiliation(s)
- R Henderson
- Department of Crop and Soil Sciences, University of Georgia, Athens, Georgia 30602, USA
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Hassan S, Wall A, Ayyaswamy B, Ayyawamy B, Rogers S, Mills SP, Charalambous CP. Is there a need for early post-operative x-rays in primary total knee replacements? Experience of a centre in the UK. Ann R Coll Surg Engl 2012; 94:199-200. [PMID: 22507727 DOI: 10.1308/003588412x13171221501780] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Early post-operative x-rays are often taken in total knee replacements (TKRs). Patient mobilisation may be delayed until these x-rays are obtained and this may prolong discharge. The aim of this study was to assess the value of such early x-rays and whether they influenced the early post-operative management of these patients. METHODS A total of 624 consecutive TKRs performed at the Blackpool Victoria Hospital over a 34-month period were evaluated. Plain anteroposterior and lateral x-rays were examined. RESULTS Two patients were found to have significant abnormalities: an undisplaced periprosthetic tibial fracture and a partial inferior pole patellar avulsion. Neither of these required further treatment or influenced mobility. No other complications were noted that changed routine post-operative management. CONCLUSIONS These results question the need for immediate x-rays in primary TKRs.
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Affiliation(s)
- S Hassan
- Blackpool Teaching Hospitals NHS Foundation Trust, UK
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141
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Hassan S, Murtaza M. Malaria, dynamic epidemiology in flood affected area od District Muzafar Garh, Punjab, Pakistan in 2010. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.419] [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: 11/15/2022] Open
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142
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Gallagher S, Hassan S, Jones DA, Lovell MJ, Ahktar A, Kapur A, Knight C, Mathur A, Yaqoob MM, Wragg A. 124 Impact of contrast-induced nephropathy upon short and long-term outcomes of patients with ST-segment elevation myocardial infarction undergoing primary percutaneous coronary intervention. Heart 2012. [DOI: 10.1136/heartjnl-2012-301877b.124] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Hassan K, Rubinchik I, Hassan F, Ron E, Hassan S. Unusual Cause of Late Peritoneal Dialysate Leakage. Perit Dial Int 2012; 32:360-1. [DOI: 10.3747/pdi.2011.00044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- K. Hassan
- Nephrology and Hypertension Department Western Galilee Hospital Nahariya, Israel
- Ruth and Bruce Rappaport Faculty of Medicine Technion, Haifa, Israel
| | - I. Rubinchik
- Nephrology and Hypertension Department Western Galilee Hospital Nahariya, Israel
| | - F. Hassan
- Sackler Faculty of Medicine Tel Aviv University Tel Aviv, Israel
| | - E. Ron
- Nephrology and Hypertension Department Western Galilee Hospital Nahariya, Israel
| | - S. Hassan
- Internal Medicine Department Carmel Medical Center Haifa, Israel
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144
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Rathod KS, Gallagher SM, Hassan S, Lovell MJ, Jones DA, Rathod VS, Bromage D, Uppal R, Knight C, Mathur A, Wragg A, Kapur A. 148 Insulin dependent diabetes results in worse outcomes compared to non-insulin dependent diabetes following coronary artery bypass graft surgery (CABG): Abstract 148 Figure 1. Heart 2012. [DOI: 10.1136/heartjnl-2012-301877b.148] [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: 11/04/2022]
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145
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Hassan S, Hassan A, Chaudhry S, Rostambeigi N, Rodriguez G, Suri F, Qureshi A. Optimization of CT Scan to Angiography Time Can Reduce Variability in Time Intervals from Symptom Onset to Recanalization in Acute Ischemic Stroke Patients (P06.213). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p06.213] [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: 11/15/2022] Open
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146
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Hassan S, Hassan A, Rostambeigi N, Grigoryan M, Chaudhry S, Cordina S, Khatri R, Qureshi A. A Critical Analysis of Intra-Arterial Thrombolytic Doses in Acute Ischemic Stroke Patients (P05.257). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p05.257] [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: 11/15/2022] Open
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147
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Boersma D, Demontiero O, Mohtasham Amiri Z, Hassan S, Suarez H, Geisinger D, Suriyaarachchi P, Sharma A, Duque G. Vitamin D status in relation to postural stability in the elderly. J Nutr Health Aging 2012; 16:270-5. [PMID: 22456785 DOI: 10.1007/s12603-011-0345-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [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: 12/23/2022]
Abstract
OBJECTIVES Postural instability (PI) is an important risk factor for falls, especially in the frail older population. In this study, we investigated the impact of vitamin D deficiency on PI in a sample of community dwelling older subjects. Our objective was to determine the potential association between vitamin D deficiency and PI in older fallers. DESIGN Cross-sectional study. SETTING Falls and Fractures Clinic, Department of Geriatric Medicine, Nepean Hospital, Penrith, Australia. PARTICIPANTS One hundred and forty-five adults aged 65 years and older who have had at least one episode of a fall within the six months prior to assessment at the Falls and Fractures Clinic. MEASUREMENTS Serum 25(OH) vitamin D3 [25(OH)D3] and parathyroid hormone concentrations were determined at baseline. Subjects were separated into 3 groups based on serum 25(OH)D3 levels with the following cut-off values: < 30 nmol/L (deficient), 30-50 nmol/L (insufficient) and > 50 nmol/L (normal). Other baseline measurements included body mass index, mini-nutritional assessment, grip strength, serum calcium concentration and creatinine clearance, which were used as covariables. PI was assessed using a computerized virtual reality system (Medicaa, Uruguay). Measured parameters included limits of stability (LOS) and centre of pressure (COP) under eyes closed on foam (ECF) and visio-vestibular stimulation. The estimated swaying area, computed from the ellipse of confidence under eyes closed standing on foam (ECF), was also used as a PI parameter. Gait velocity (GV) was measured using a GaitRITE walkway system. RESULTS Posture was impaired in vitamin D deficiency (<30 nmol/L) as indicated by lower LOS (90 +/- 18), higher ECF (25 +/- 10) and slower GV (55 +/- 7) as compared with the insufficient and normal groups. After adjustment for demographic, biochemical and anthropometric variables, vitamin D deficiency significantly correlated with low LOS and high COP under ECF. CONCLUSION Low levels of vitamin D were associated with PI. This association could also have an effect on slow GV and increased risk of falls. In conclusion, using an objective method to measure balance in older fallers we have identified a novel role of vitamin D in balance control. Prospective studies are required to confirm the effect of vitamin D on PI and elucidate the mechanisms of this association.
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Affiliation(s)
- D Boersma
- Department of Geriatric Medicine, Nepean Hospital, Penrith, NSW, Australia 2751
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148
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El-Busaid H, Hassan S, Odula P, Ogeng'o J, Ndung'u B. Sex variations in the structure of human atrioventricular annuli. Folia Morphol (Warsz) 2012; 71:23-27. [PMID: 22532181] [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: 05/31/2023]
Abstract
Atrioventricular annuli are important in haemodynamic flexibility, competence, and support for tricuspid and mitral valves. The anatomical features of the annuli, such as circumference, organisation of connective tissue fibres, myocardium, and cellularity, may predispose to annular insufficiency and valvular incompetence. These pathologies occur more commonly in females, although the anatomical basis for this disparity is unclear. Sex variation in the structure of the annuli is important in providing a morphological basis for the patterns of these diseases. This study therefore aimed to determine the sex variations in the structure of human atrioventricular annuli. One hundred and one hearts (48 males, 53 females) obtained from the Department of Human Anatomy of the University of Nairobi were studied. Annular circumferences were measured using a flexible ruler and corrected for heart weight. Results were analysed using SPSS version 17.0 and sex differences determined using student's t-test. A p-value of less than 0.05 was considered significant. For light microscopy, specimens were harvested within 48 hours post-mortem, processed, sectioned, and stained with Masson's trichrome and Weigert's elastic stain with van Gieson counterstaining. Females had significantly larger annular circumferences than males after correcting for heart weight (p ≤ 0.05). Histologically, myocardium was consistently present in all male annuli while this was absent in females except in one specimen. The annuli were more elastic and cellular in males especially in the annulo-myocardial and annulo-valvular zones, respectively. The corrected larger annular circumference in females may limit heart valve coaptation during cardiac cycle and may be a risk factor for valvular insufficiency. The predominance of myocardium, annular cellularity, and elasticity may be more protective against heart valve incompetence in males than in females.
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Affiliation(s)
- H El-Busaid
- Department of Human Anatomy, University of Nairobi, Kenya.
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149
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El-Busaid H, Kaisha W, Hassanali J, Hassan S, Ogeng'o J, Mandela P. Sternal foramina and variant xiphoid morphology in a Kenyan population. Folia Morphol (Warsz) 2012; 71:19-22. [PMID: 22532180] [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: 05/31/2023]
Abstract
Sternal foramina may pose a great hazard during sternal puncture, due to inadvertent cardiac or great vessel injury. They can also be misinterpreted as osteolytic lesions in cross-sectional imaging of the sternum. On the other hand, variant xiphoid morphology such as bifid, duplicated, or trifurcated may be mistaken for fractures during imaging. The distribution of these anomalies differs between populations, but data from Africans is scarcely reported. This study therefore aimed to investigate the distribution and frequency of sternal foramina and variant xiphoid morphology in a Kenyan population. Eighty formalin-fixed adult sterna (42 males [M], 38 females [F]) of age range 18-45 years were studied during dissection at the Department of Human Anatomy, University of Nairobi. Soft tissues were removed from the macerated sterna by blunt dissection and foramina recorded in the manubrium, body, and xiphoid process. The xiphisternal ending was classified as single, bifurcated (2 xiphoid processes with a common stem), or duplicated (2 xiphoid processes with separate stems). Results were analysed using SPSS version 17.0. Foramina were present in 11 specimens (13.8%): 7 M, 4 F. The highest frequency was in the sternal body (n = 9), where they predominantly occurred at the 5th intercostal segment. Xiphoid foramina were present in 2 specimens (both males) (2.5%), while manubrial foramen was not encountered. The xiphisternum ended as a single process in 64 cases (34 M, 30 F) (80%). It bifurcated in 10 cases (5 M, 5 F) (12.5%), and duplicated in 6 cases (4 M, 2 F) (7.5%). There were no cases of trifurcation. Sternal foramina in Kenyans vary in distribution and show higher frequency than in other populations. These variations may complicate sternal puncture, and due caution is recommended. The variant xiphisternal morphology may raise alarm for xiphoid fractures and may therefore be considered a differential.
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Affiliation(s)
- H El-Busaid
- Department of Human Anatomy, University of Nairobi, Kenya.
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150
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Bhutta MA, Arshad MS, Hassan S, Henderson JJ. Trends in joint arthroplasty litigation over five years: the British experience. Ann R Coll Surg Engl 2011; 93:460-4. [PMID: 21929916 DOI: 10.1308/003588411x587226] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
INTRODUCTION Increasing numbers of joint arthroplasty are performed in Britain. While associated complications are well documented, it is not known which of those initiate malpractice claims. METHOD A five-year period was assessed for trends to highlight areas for further improvement in patient information and surgical management. RESULTS The National Health Service paid out almost £14 million for 598 claims. Forty per cent of this was for legal costs. The number of claims increased over time while the rate of successful claims decreased. CONCLUSIONS A failure to consent adequately and to adhere to policies and standard practice can result in a successful malpractice claim. Protecting patients intraoperatively and maintaining high technical expertise while implementing policies and obtaining informed consent decreases the litigation burden.
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