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Gugssa A, Lee CM, Gebru S, Desta D, Murray S, Baccetti B, Anderson W. Co-culture of Trypanosoma musculi with spleen-derived adherent fibroblasts: possible transfer of small molecules via connexons. JOURNAL OF SUBMICROSCOPIC CYTOLOGY AND PATHOLOGY 2005; 37:223-9. [PMID: 16612971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Trypanosoma musculi, a protozoan parasite specific to mouse, was cultured in vitro in the presence of spleen-derived adherent cells. T. musculi co-cultured with adherent cells survived and proliferated indefinitely as long as cellular contact was retained. Scanning and transmission electron microscopy confirmed intimate membrane-to-membrane contact between the adherent cells and parasites. Cellular contact, therefore, seemed to be essential for trypanosomal survival and growth. Immunocytochemical studies demonstrated intense fibroblast growth factor (FGF) activity in adherent cells, and FGFR-2 in associated trypanosomes. BioPorter Lucifer yellow protein delivery reagent studies demonstrated that Lucifer yellow transfected into fibroblast was incorporated into associated trypanosomes. The results suggest the existence of viable channels reminiscent of gap junctions between associated cells. Such transfer of low molecular weight molecules might represent antiapoptotic metabolic factors that support survival of adherent trypanosomes in vitro. Immunocytochemical studies also detected connexin-32 and connexin-43 in the cytoplasm of fibroblasts and associated trypanosomes, however, restriction of connexons to trypanosome/fibroblast adherent sites was not observed. Western blots confirmed the presence of connexin protein molecules in trypanosomes.
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van de Kerkhof PCM, Wasel N, Kragballe K, Cambazard F, Murray S. A two-compound product containing calcipotriol and betamethasone dipropionate provides rapid, effective treatment of psoriasis vulgaris regardless of baseline disease severity. Dermatology 2005; 210:294-9. [PMID: 15942215 DOI: 10.1159/000084753] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2004] [Accepted: 10/15/2004] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND A two-compound product containing calcipotriol and betamethasone dipropionate (Daivobet/Dovobet) has been evaluated in a large clinical trial programme, providing a wealth of data on the treatment of psoriasis vulgaris. OBJECTIVE To determine the effectiveness of the two-compound product in patients with mild, moderate and severe psoriasis vulgaris. METHODS Data from over 1,534 patients with psoriasis vulgaris who received the two-compound product once daily for at least 4 weeks in four randomised, double-blind studies were pooled. A meta-analysis of the pooled data is presented. Severity of psoriasis at baseline was determined by investigator assessment and Psoriasis Area and Severity Index (PASI) score. RESULTS For patients with severe disease defined by PASI score (PASI baseline > or = 17), the mean reduction in PASI after up to 4 weeks of treatment was 71.6% compared with 68.9 and 67.2% for those with moderate (PASI baseline 5.1-16.0) and mild disease (PASI baseline < or = 5). Corresponding reductions for investigator-assessed severity were 72.6, 69.1 and 68.7%, respectively. CONCLUSION Although the meta-analysis of the data from these four studies was performed post hoc, we may conclude that the two-compound product provided highly effective treatment of psoriasis, regardless of the category of baseline disease severity.
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Murray S. Burning questions. CMAJ 2005. [DOI: 10.1503/cmaj.051109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Murray S. BMA House caught in the blast. CMAJ 2005. [DOI: 10.1503/cmaj.050902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Timotheadou E, Murray S, Linardou H, Vrettou AV, Skrickova J, Kosmidis P, Skarlos DV, Pectasides D, Fountzilas G. VEGF 165, Bcl-2, p53, COX-2 and HER-family expression in patients with stage I B-III A completely resected non-small cell lung cancer (NSCLC) and correlation with clinical outcome. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.7246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Merion R, Hulbert-Shearon T, Bustami R, Wolfe R, Ring W, Murray S. Waitlist mortality risk among heart transplant candidates by urgency status and Ventricular Assist Device (VAD) use. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.11.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Bustami R, Hulbert-Shearon T, Murray S, McCullough K, Rodgers A, Wolfe R, Egan T, Merion R. Equity effects of implemention of a new lung allocation policy. J Heart Lung Transplant 2005. [DOI: 10.1016/j.healun.2004.11.266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Abstract
STUDY OBJECTIVE The objectives of the study were to establish the prevalence and incidence of multiple sclerosis in Glasgow and to assess the epidemiological importance of deprivation and ethnicity. DESIGN The study was a descriptive cross-sectional study. Multiple sources of ascertainment were used to identify cases. SETTING AND PATIENTS The study was carried out in the population of three Local Health Care Cooperatives (LHCCs) in the area of Greater Glasgow NHS Board. The total population was approximately 169,000. MAIN RESULTS In total, 245 patients with multiple sclerosis were identified. The mean age of patients was 49.8 years, the female to male ratio was 3.2:1, and the mean duration of disease was 16 years. The overall prevalence was 14.5 per 10,000, and the overall incidence 5.7 per 100,000 per year. Both the prevalence and incidence of multiple sclerosis were higher in the more affluent population. The crude prevalence in the Asian population was 6.3 per 20,000. CONCLUSIONS The epidemiology of multiple sclerosis in Glasgow was similar, in most respects, to the epidemiology described in other parts of the U.K. There was evidence for the importance of deprivation as a determinant of both incidence and prevalence of disease. The reasons for the higher incidence and prevalence of multiple sclerosis in less deprived populations are not clear.
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Daniel D, Brook S, Warrington L, Loebel A, Murray S. Intramuscular ziprasidone in agitated patients with bipolar diagnoses. Ann Emerg Med 2004. [DOI: 10.1016/j.annemergmed.2004.07.074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Qureshi F, Cetin S, Drain P, Murray S, Hui X, Li J, Boyle P, Ford H, Hackam D. Interferon gamma inhibits inter-enterocyte communication by reducing connexin 43 phosphorylation. J Surg Res 2004. [DOI: 10.1016/j.jss.2004.07.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Murray S, Collins PD, James MA. An investigation into the 'carry over' effect of neurostimulation in the treatment of angina pectoris. Int J Clin Pract 2004; 58:669-74. [PMID: 15311723 DOI: 10.1111/j.1368-5031.2004.00204.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Neurostimulation, by way of transcutaneous electrical nerve stimulation (TENS) and spinal cord stimulation, improves signs and symptoms of myocardial ischaemia, with evidence (from non-randomised studies) that this effect extends beyond the period of stimulation itself ('carry-over' effect). In this randomised controlled trial, 10 patients underwent baseline treadmill-exercise-testing (TET), followed by two further tests at fortnightly intervals. TENS was compared to placebo in a randomised fashion. TENS produced a significant increase in total exercise time (399.3 vs. 364.5 s, p < 0.05) and time to maximum ST depression (374 vs. 324 s, p = 0.01) without a significant difference in the maximum degree of ST depression (2.0 vs. 2.1 mm, p = NS). Rate-pressure product at peak exercise was not significantly different (197 vs. 193, p = NS). TENS produced a nonsignificant change in time to onset of angina (352 vs. 325 s, p = 0.07). Pre-treatment with TENS produces a significant improvement in exercise tolerance and measures of ischaemia but not significant improvement in symptoms.
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Murray S, Shetty A, Rattray A, Taylor V, Bhattacharya S. A randomized comparison of alternative methods of information provision on the acceptability of elective single embryo transfer. Hum Reprod 2004; 19:911-6. [PMID: 14990543 DOI: 10.1093/humrep/deh176] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The purpose of this study was to assess the effect of alternative ways of providing information about the risks of twins on couples' perceptions about elective single embryo transfer (eSET). METHODS Couples undergoing IVF were randomized into three groups. Group 1 received a standard information pack, group 2 an extra information leaflet about twin pregnancy, and group 3 an additional discussion session. The primary outcome measure was acceptability of a hypothetical policy of eSET. Data were collected by means of a questionnaire. RESULTS eSET was acceptable to 17 (27%), 20 (30%) and 24 (32%) couples in groups 1, 2 and 3, if it meant a slight reduction in pregnancy rates, and to 51 (82%), 55 (83%) and 53 (87%) couples, respectively, if pregnancy rates were unchanged. A fixed charge for all fresh and frozen embryo transfers following a single oocyte retrieval led to acceptability rates of 35 (57%), 36 (55%) and 38 (65%). CONCLUSIONS Additional information, involving an extra information leaflet and face to face discussion, did not changes couples' attitudes towards eSET. Maintaining existing rates of pregnancy and offering a fixed charge for all embryo transfers resulting from an oocyte recovery may encourage more couples to consider eSET.
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Murray S. BOOK REVIEWS: 3. Biometrics 2003. [DOI: 10.1111/j.0006-341x.2003.138_3.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Murray S, Hillman C, Pecht M. Environmental aging and deadhesion of siloxane-polyimide-epoxy adhesive. ACTA ACUST UNITED AC 2003. [DOI: 10.1109/tcapt.2003.817642] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Langley JM, Soder CM, Schlievert PM, Murray S. Case report: Molluscum contagiosum. Toxic shock syndrome following cantharidin treatment. CANADIAN FAMILY PHYSICIAN MEDECIN DE FAMILLE CANADIEN 2003; 49:887-9. [PMID: 12901485 PMCID: PMC2214253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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241
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Howard-Jones PA, Murray S. Ideational Productivity, Focus of Attention, and Context. CREATIVITY RESEARCH JOURNAL 2003. [DOI: 10.1080/10400419.2003.9651409] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Howard-Jones PA, Murray S. Ideational Productivity, Focus of Attention, and Context. CREATIVITY RESEARCH JOURNAL 2003. [DOI: 10.1207/s15326934crj152&3_07] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Tidswell AT, Bagshaw AP, Holder DS, Yerworth RJ, Eadie L, Murray S, Morgan L, Bayford RH. A comparison of headnet electrode arrays for electrical impedance tomography of the human head. Physiol Meas 2003; 24:527-44. [PMID: 12812436 DOI: 10.1088/0967-3334/24/2/363] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Three types of commercially available headnet electrode arrays, designed for use in EEG, and conventional EEG Ag/AgCl cup electrodes were tested on human subjects, and a realistic, saline-filled head-shaped tank was prepared with vegetable skin to simulate human skin in order to determine the optimum electrode system for electrical impedance tomography (EIT) of the human head. Impedance changes during EIT acquisition were produced in healthy volunteers during a finger-thumb apposition task and in tanks by the insertion of a Perspex rod. Signal-to-baseline noise, measured from raw EIT data, was 2.3 +/- 0.3 and 2.3 +/- 0.2 for the human and tank data, respectively. In both the human and tank experiments, a commercial hydrogel elasticated electrode headnet produced the least amount of baseline noise, and was the only headnet in the human data with noise levels acceptable for EIT imaging. Image quality measured in the tank was similar for most of the headnets tested, except that the EEG electrodes produced a higher positional error and electrodes in a geodesic elasticated net produced images with worse subjective image quality. Overall, the hydrogel elasticated headnet was judged to be the most suitable for human neuroimaging with EIT.
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Flaherty KR, Thwaite EL, Kazerooni EA, Gross BH, Toews GB, Colby TV, Travis WD, Mumford JA, Murray S, Flint A, Lynch JP, Martinez FJ. Radiological versus histological diagnosis in UIP and NSIP: survival implications. Thorax 2003; 58:143-8. [PMID: 12554898 PMCID: PMC1746568 DOI: 10.1136/thorax.58.2.143] [Citation(s) in RCA: 367] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND High resolution computed tomography (HRCT) has an important diagnostic role in idiopathic interstitial pneumonia (IIP). We hypothesised that the HRCT appearance would have an impact on survival in patients with IIP. METHODS HRCT scans from patients with histological usual interstitial pneumonia (UIP; n=73) or histological non-specific interstitial pneumonia (NSIP; n=23) were characterised as definite UIP, probable UIP, indeterminate, probable NSIP, or definite NSIP. Cox regression analysis examined the relationships between histopathological and radiological diagnoses and mortality, controlling for patient age, sex, and smoking status. RESULTS All 27 patients with definite or probable UIP on HRCT had histological UIP; 18 of 44 patients with probable or definite NSIP on HRCT had histological NSIP. Patients with HRCT diagnosed definite or probable UIP had a shorter survival than those with indeterminate CT (hazards ratio (HR) 2.43, 95% CI 1.06 to 5.58; median survival 2.08 v 5.76 years) or HRCT diagnosed definite or probable NSIP (HR 3.47, 95% CI 1.58 to 7.63; median survival 2.08 v 5.81 years). Patients with histological UIP with no HRCT diagnosis of probable or definite UIP fared better than patients with histological UIP and an HRCT diagnosis of definite or probable UIP (HR 0.49, 95% CI 0.25 to 0.98; median survival 5.76 v 2.08 years) and worse than those with a histological diagnosis of NSIP (HR 5.42, 95% CI 1.25 to 23.5; median survival 5.76 v >9 years). CONCLUSIONS Patients with a typical HRCT appearance of UIP experience the highest mortality. A surgical lung biopsy is indicated for patients without an HRCT appearance of UIP to differentiate between histological UIP and NSIP.
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Egan T, McCullough K, Murray S, Bustami R, Merion R, Garrity E, Grover F, Ring W, Robbins R, Trulock E, Wood D, Edwards L. Risk factors for death after lung transplant in the US. J Heart Lung Transplant 2003. [DOI: 10.1016/s1053-2498(02)00920-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Egan T, McCullough K, Murray S, Bastami R, Merion R, Garrity E, Grover F, Ring W, Robbins R, Trulock E, Wood D, Edwards L. Predictors of death on the unos lung transplant waiting list. J Heart Lung Transplant 2003. [DOI: 10.1016/s1053-2498(02)00921-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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McCullough K, Bustami R, Murray S, Egan T, Merion R. Time-dependent mortality risk of lung transplantation compared with remaining on the waitlist. J Heart Lung Transplant 2003. [DOI: 10.1016/s1053-2498(02)00919-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Cordeiro MF, Mead A, Ali RR, Alexander RA, Murray S, Chen C, York-Defalco C, Dean NM, Schultz GS, Khaw PT. Novel antisense oligonucleotides targeting TGF-beta inhibit in vivo scarring and improve surgical outcome. Gene Ther 2003; 10:59-71. [PMID: 12525838 DOI: 10.1038/sj.gt.3301865] [Citation(s) in RCA: 132] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The scarring response is an important factor in many diseases throughout the body. In addition, it is a major problem in influencing results of surgery. In the eye, for example, post-operative scarring can determine the outcome of surgery. This is particularly the case in the blinding disease glaucoma, where several anti-scarring regimens are currently used to improve glaucoma surgery results, but are of limited use clinically because of severe complications. We have recently identified transforming growth factor-beta (TGF-beta) as a target for post-operative anti-scarring therapy in glaucoma, and now report the first study of novel second-generation antisense phosphorothioate oligonucleotides against TGF-beta in vivo. Single applications of a TGF-beta OGN at the time of surgery in two different animal models closely related to the surgical procedure performed in glaucoma patients, significantly reduced post-operative scarring (P<0.05) and improved surgical outcome. Our findings suggest that TGF-beta antisense oligonucleotides have potential as a new therapy for reducing post-surgical scarring. Its long-lasting effects after only a single administration at the time of surgery make it particularly attractive clinically. Furthermore, although we have shown this agent to be useful in the eye, it could have widespread applications anywhere in the body where the wound-healing response requires modulation.
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Barone KS, Herms B, Karlosky L, Murray S, Qualls J. Effect of in vivo administration of anti-CTLA-4 monoclonal antibody and IL-12 on the induction of low-dose oral tolerance. Clin Exp Immunol 2002; 130:196-203. [PMID: 12390306 PMCID: PMC1906531 DOI: 10.1046/j.0009-9104.2002.01961.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2002] [Indexed: 11/20/2022] Open
Abstract
Oral tolerance has been characterized as an immunological hyporesponsiveness to fed antigen. Previous studies have suggested that high-dose oral tolerance involves the preferential interaction of B7 with CTLA-4 on the T cell. To determine whether similar mechanisms are involved in the induction of low-dose oral tolerance, mice were treated with anti-CTLA-4 monoclonal antibody (MoAb), with or without IL-12, at the time of feeding. Results showed that anti-CTLA-4 MoAb alone failed to restore cellular proliferation, antibody titres and IFN-gamma levels; however, IL-4 cytokine levels in OVA-fed mice were partially restored. In contrast, administration of IL-12 along with anti-CTLA-4 MoAb to mice during feeding completely prevented the suppression of Th1 immune responses, as shown by increased serum IgG2a titres, IFN-gamma production and cell proliferation. These results suggest that blocking B7-CTLA-4 interactions in the presence of IL-12 prevents the induction of low-dose oral tolerance at the Th1 cell level.
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