51
|
Tung ND, Barr J, Sheppard DJ, Elliot DA, Tottey LS, Walsh KAJ. Spherical Photography and Virtual Tours for Presenting Crime Scenes and Forensic Evidence in New Zealand Courtrooms. J Forensic Sci 2015; 60:753-8. [DOI: 10.1111/1556-4029.12736] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 01/23/2014] [Accepted: 05/29/2014] [Indexed: 11/27/2022]
|
52
|
Barr J, Callender S, Tung D, Fashote B, Lacroix L, Young A. Beliefs About Medicines In An Urban Black Hypertension Population. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A494-A495. [PMID: 27201480 DOI: 10.1016/j.jval.2014.08.1471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
|
53
|
Hilligas J, Van Wie E, Barr J, Russell KE, Perry AL, Weeks BR, Zhang S. Vertebral osteomyelitis and multiple cutaneous lesions in a dog caused by Nocardia pseudobrasiliensis. J Vet Intern Med 2014; 28:1621-5. [PMID: 25103815 PMCID: PMC4895579 DOI: 10.1111/jvim.12419] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 05/21/2014] [Accepted: 06/18/2014] [Indexed: 11/30/2022] Open
|
54
|
Colling A, Morrissy C, Barr J, Meehan G, Wright L, Goff W, Gleeson LJ, van der Heide B, Riddell S, Yu M, Eagles D, Lunt R, Khounsy S, Than Long N, Phong Vu P, Than Phuong N, Tung N, Linchongsubongkoch W, Hammond J, Johnson M, Johnson WO, Unger H, Daniels P, Crowther JR. Development and validation of a 3ABC antibody ELISA in Australia for foot and mouth disease. Aust Vet J 2014; 92:192-9. [DOI: 10.1111/avj.12190] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2013] [Indexed: 12/01/2022]
|
55
|
McNabb L, Barr J, Crameri G, Juzva S, Riddell S, Colling A, Boyd V, Broder C, Wang LF, Lunt R. Henipavirus microsphere immuno-assays for detection of antibodies against Hendra virus. J Virol Methods 2014; 200:22-8. [PMID: 24508193 DOI: 10.1016/j.jviromet.2014.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 01/10/2014] [Accepted: 01/14/2014] [Indexed: 10/25/2022]
Abstract
Hendra and Nipah viruses (HeV and NiV) are closely related zoonotic pathogens of the Paramyxoviridae family. Both viruses belong to the Henipavirus genus and cause fatal disease in animals and humans, though only HeV is endemic in Australia. In general and due to the acute nature of the disease, agent detection by PCR and virus isolation are the primary tools for diagnostic investigations. Assays for the detection of antibodies against HeV are fit more readily for the purpose of surveillance testing in disease epidemiology and to meet certification requirements in the international movement of horses. The first generation indirect ELISA has been affected by non-specific reactions which must be resolved using virus neutralisation serology conducted at laboratory bio-safety level 4 containment (PC4). Recent developments have enabled improvements in the available serology assays. The production of an expressed recombinant truncated HeV G protein has been utilised in ELISA and in Luminex-based multiplexed microsphere assays. In the latter format, two Luminex assays have been developed for use in henipavirus serology: a binding assay (designed for antibody detection and differentiation) and a blocking assay (designed as a surrogate for virus neutralisation). Equine and canine field sera were used to evaluate the two Luminex assays relative to ELISA and virus neutralisation serology. Results showed that Luminex assays can be effective as rapid, sensitive and specific tests for the detection of HeV antibody in horse and dog sera. The tests do not require PC4 containment and are appropriate for high throughput applications as might be required for disease investigations and other epidemiological surveillance. Also, the results show that the Luminex assays detect effectively HeV vaccine-induced antibodies.
Collapse
|
56
|
Ho LC, El Shafei H, Barr J, Al Kari B, Aly EH. Rectal impalement injury through the pelvis, abdomen and thorax. Ann R Coll Surg Engl 2012; 94:e201-3. [PMID: 22943322 PMCID: PMC3954362 DOI: 10.1308/003588412x13373405385016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Impalement rectal injuries with intraperitoneal organ injuries are rare. It is even rarer for such injuries to result in pelvic, abdominal and thoracic internal injuries. We present the case of a 39-year-old man who was admitted after an assault where a broken broomstick was inserted forcibly into his rectum. Surgery revealed penetration through the rectum, dome of the bladder, mesentery, liver and right lung. The patient survived following management by a multispecialty surgical team. Our literature review identified four similar cases with one fatality only. Prognosis seems to be good in these types of injuries provided there is an early presentation, the penetrating object is left in situ before the operation and, most importantly, an organised team approach to deal with the various injuries.
Collapse
|
57
|
Gonzales N, Garcia L, Clair D, Barr J, Orlow S, Tom M, Hughes S, Longbottom M, Sheffet A, Voeks J, Brott T. Relationship between Center-Volume and Complication Rates in the Carotid Revascularization Endarterectomy Versus Stenting Trial (P06.204). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p06.204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
58
|
Zand R, Kazemi S, Barr J, Afshani M. Subarachnoid Hemorrhage with Severe Vasospasm after Bevacizumab Therapy: A Case Report (P02.205). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p02.205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
59
|
Barr J, Caballería J, Martínez-Arranz I, Domínguez-Díez A, Alonso C, Muntané J, Pérez-Cormenzana M, García-Monzón C, Mayo R, Martín-Duce A, Romero-Gómez M, Lo Iacono O, Tordjman J, Andrade RJ, Pérez-Carreras M, Le Marchand-Brustel Y, Tran A, Fernández-Escalante C, Arévalo E, García-Unzueta M, Clement K, Crespo J, Gual P, Gómez-Fleitas M, Martínez-Chantar ML, Castro A, Lu SC, Vázquez-Chantada M, Mato JM. Obesity-dependent metabolic signatures associated with nonalcoholic fatty liver disease progression. J Proteome Res 2012; 11:2521-32. [PMID: 22364559 DOI: 10.1021/pr201223p] [Citation(s) in RCA: 169] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Our understanding of the mechanisms by which nonalcoholic fatty liver disease (NAFLD) progresses from simple steatosis to steatohepatitis (NASH) is still very limited. Despite the growing number of studies linking the disease with altered serum metabolite levels, an obstacle to the development of metabolome-based NAFLD predictors has been the lack of large cohort data from biopsy-proven patients matched for key metabolic features such as obesity. We studied 467 biopsied individuals with normal liver histology (n=90) or diagnosed with NAFLD (steatosis, n=246; NASH, n=131), randomly divided into estimation (80% of all patients) and validation (20% of all patients) groups. Qualitative determinations of 540 serum metabolite variables were performed using ultraperformance liquid chromatography coupled to mass spectrometry (UPLC-MS). The metabolic profile was dependent on patient body-mass index (BMI), suggesting that the NAFLD pathogenesis mechanism may be quite different depending on an individual's level of obesity. A BMI-stratified multivariate model based on the NAFLD serum metabolic profile was used to separate patients with and without NASH. The area under the receiver operating characteristic curve was 0.87 in the estimation and 0.85 in the validation group. The cutoff (0.54) corresponding to maximum average diagnostic accuracy (0.82) predicted NASH with a sensitivity of 0.71 and a specificity of 0.92 (negative/positive predictive values=0.82/0.84). The present data, indicating that a BMI-dependent serum metabolic profile may be able to reliably distinguish NASH from steatosis patients, have significant implications for the development of NASH biomarkers and potential novel targets for therapeutic intervention.
Collapse
|
60
|
Szpalski C, Wetterau M, Barr J, Warren SM. Bone tissue engineering: current strategies and techniques--part I: Scaffolds. TISSUE ENGINEERING PART B-REVIEWS 2012; 18:246-57. [PMID: 22029448 DOI: 10.1089/ten.teb.2011.0427] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bone repair and regeneration is a dynamic process that involves a complex interplay between the (1) ground substance, (2) cells, and (3) milieu. While each constituent is integral to the final product, it is often helpful to consider each component individually. Therefore, we created a two-part review to examine scaffolds and cells' roles in bone tissue engineering. In Part I, we review the myriad of materials use for in vivo bone engineering. In Part II, we discuss the variety cell types (e.g., osteocytes, osteoblasts, osteoclasts, chondrocytes, mesenchymal stem cells, and vasculogenic cells) that are seeded upon or recruited to these scaffolds. In Part III, we discuss the optimization of the microenvironment. The biochemical processes and sequence of events that guide matrix production, cellular activation, and ossification are vital to developing successful bone tissue engineering strategies and are thus succinctly reviewed herein.
Collapse
|
61
|
Cook A, Allen A, Espinosa D, Barr J. Renal Tubular Acidosis Associated with Zonisamide Therapy in a Dog. J Vet Intern Med 2011; 25:1454-7. [DOI: 10.1111/j.1939-1676.2011.00801.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Revised: 07/27/2011] [Accepted: 08/15/2011] [Indexed: 11/30/2022] Open
|
62
|
Kounalakis N, Amato CM, Barr J, Robinson W. A germ line polymorphism in the RET proto-oncogene predicts risk and recurrence in desmoplastic melanoma. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.8558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
63
|
Barr J. THE EFFECTS OF RESPIRATION ON THE CIRCULATION; AND THE PULSUS PARADOXUS VEL PULSUS INSPIRATIONE INTERMITTENS. BRITISH MEDICAL JOURNAL 2011; 1:913-8. [PMID: 20763178 DOI: 10.1136/bmj.1.2416.913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
64
|
Barr J. "THE SOLDIER'S HEART" AND ITS RELATION TO THYROIDISM. BRITISH MEDICAL JOURNAL 2011; 1:544-6. [PMID: 20768086 DOI: 10.1136/bmj.1.2885.544] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
65
|
Barr J. An Address ON RHEUMATOID ARTHRITIS: Delivered at a Meeting of the Sunderland Division of the British Medical Association. BRITISH MEDICAL JOURNAL 2011; 1:753-5. [PMID: 20766577 DOI: 10.1136/bmj.1.2728.753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
66
|
Barr J. An Address on PNEUMONIA: ITS NATURE AND TREATMENT: Delivered before the Glasgow Southern Medical Society. BRITISH MEDICAL JOURNAL 2011; 1:69-77. [PMID: 20766943 DOI: 10.1136/bmj.1.2767.69] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
67
|
Szpalski C, Barr J, Wetterau M, Saadeh PB, Warren SM. Cranial bone defects: current and future strategies. Neurosurg Focus 2010; 29:E8. [DOI: 10.3171/2010.9.focus10201] [Citation(s) in RCA: 147] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Bony defects in the craniomaxillofacial skeleton remain a major and challenging health concern. Surgeons have been trying for centuries to restore functionality and aesthetic appearance using autografts, allografts, and even xenografts without entirely satisfactory results. As a result, physicians, scientists, and engineers have been trying for the past few decades to develop new techniques to improve bone growth and bone healing. In this review, the authors summarize the advantages and limitations of current animal models; describe current materials used as scaffolds, cell-based, and protein-based therapies; and lastly highlight areas for future investigation. The purpose of this review is to highlight the major scaffold-, cell-, and protein-based preclinical tools that are currently being developed to repair cranial defects.
Collapse
|
68
|
Tateshima S, Zauner A, Barr J, Lopes D, Liebeskind D. O-006 A novel microcatheter based device for endovascular mechanical thrombectomy/flow restoration. J Neurointerv Surg 2010. [DOI: 10.1136/jnis.2010.003244.6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
69
|
Barr J, Vazquez-Chantada M, Alonso C, Castro A, Fabre N, Vericat J. Ultra-performance liquid chromatography – high definition mass spectrometrty (UPLC™–HDMS™) as a useful tool in predictive drug toxicology. An activity of Melius project. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
70
|
Afshani M, Hoit D, Morris S, Barr J, Arthur A. E-016 Enterprise stent assisted coil embolization of cerebral aneurysms. J Neurointerv Surg 2010. [DOI: 10.1136/jnis.2010.003251.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
71
|
Wei J, Barr J, Kong LY, Wang Y, Wu A, Sharma AK, Gumin J, Henry V, Colman H, Sawaya R, Lang FF, Heimberger AB. Glioma-associated cancer-initiating cells induce immunosuppression. Clin Cancer Res 2010; 16:461-73. [PMID: 20068105 DOI: 10.1158/1078-0432.ccr-09-1983] [Citation(s) in RCA: 179] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE Glioblastoma multiforme is a lethal cancer that responds poorly to therapy. Glioblastoma multiforme cancer-initiating cells have been shown to mediate resistance to both chemotherapy and radiation; however, it is unknown to what extent these cells contribute to the profound immunosuppression in glioblastoma multiforme patients and if strategies that alter their differentiation state can reduce this immunosuppression. EXPERIMENTAL DESIGN We isolated a subpopulation of cells from glioblastoma multiforme that possessed the capacity for self-renewal, formed neurospheres in vitro, were capable of pluripotent differentiation, and could initiate tumors in vivo. The immune phenotype of these cells was characterized including the elaboration of immunosuppressive cytokines and chemokines by ELISA. Functional immunosuppressive properties were characterized based on the inhibition of T-cell proliferation and effector responses, triggering of T-cell apoptosis, and induction of FoxP3(+) regulatory T cells. On altering their differentiation state, the immunosuppressive phenotype and functional assays were reevaluated. RESULTS We found that the cancer-initiating cells markedly inhibited T-cell proliferation and activation, induced regulatory T cells, and triggered T-cell apoptosis that was mediated by B7-H1 and soluble Galectin-3. These immunosuppressive properties were diminished on altering the differentiation of the cancer-initiating cells. CONCLUSION Cancer-initiating cells contribute to tumor evasion of the immunosurveillance and approaches that alter the differentiation state may have immunotherapeutic potential.
Collapse
|
72
|
Wei J, Barr J, Kong LY, Wang Y, Wu A, Sharma AK, Gumin J, Henry V, Colman H, Priebe W, Sawaya R, Lang FF, Heimberger AB. Glioblastoma cancer-initiating cells inhibit T-cell proliferation and effector responses by the signal transducers and activators of transcription 3 pathway. Mol Cancer Ther 2010; 9:67-78. [PMID: 20053772 DOI: 10.1158/1535-7163.mct-09-0734] [Citation(s) in RCA: 213] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Glioblastoma multiforme (GBM) is a lethal cancer that responds poorly to radiotherapy and chemotherapy. Glioma cancer-initiating cells have been shown to recapitulate the characteristic features of GBM and mediate chemotherapy and radiation resistance. However, it is unknown whether the cancer-initiating cells contribute to the profound immune suppression in GBM patients. Recent studies have found that the activated form of signal transducer and activator of transcription 3 (STAT3) is a key mediator in GBM immunosuppression. We isolated and generated CD133+ cancer-initiating single colonies from GBM patients and investigated their immune-suppressive properties. We found that the cancer-initiating cells inhibited T-cell proliferation and activation, induced regulatory T cells, and triggered T-cell apoptosis. The STAT3 pathway is constitutively active in these clones and the immunosuppressive properties were markedly diminished when the STAT3 pathway was blocked in the cancer-initiating cells. These findings indicate that cancer-initiating cells contribute to the immune evasion of GBM and that blockade of the STAT3 pathway has therapeutic potential.
Collapse
|
73
|
Allain P, Ledru J, Granger C, Annweiler C, Chauviré V, Etcharry-Bouyx F, Barr J, Beauchet O, Duba F, Le Gall D. P3-21 Fonctions exécutives et maladie d’Alzheimer : Intérêt du «Tinker Toy Test» pour prédire l’autonomie. Rev Neurol (Paris) 2009. [DOI: 10.1016/s0035-3787(09)72649-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
74
|
Fabre N, Anglade I, Barr J, Betanzos M, Conde M, Osaba L, Vericat JA. The study of mechanisms of new drugs: Potential toxicity using genomic, proteomic and metabolomic tools. Toxicol Lett 2009. [DOI: 10.1016/j.toxlet.2009.06.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
75
|
Kong LY, Wei J, Sharma AK, Barr J, Abou-Ghazal MK, Fokt I, Weinberg J, Rao G, Grimm E, Priebe W, Heimberger AB. A novel phosphorylated STAT3 inhibitor enhances T cell cytotoxicity against melanoma through inhibition of regulatory T cells. Cancer Immunol Immunother 2009; 58:1023-32. [PMID: 19002459 PMCID: PMC2674523 DOI: 10.1007/s00262-008-0618-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Accepted: 10/20/2008] [Indexed: 02/04/2023]
Abstract
The activation of signal transducer and activator of transcription 3 (STAT3) has been identified as a key mediator that drives the fundamental components of melanoma malignancy, including immune suppression in melanoma patients. Increasing evidence also suggests that regulatory T cells (Tregs) are important in suppressing anti-tumor immunity and play a dominant role in negating efficacious immunotherapy approaches. We hypothesized that WP1066, a novel inhibitor of STAT3 signaling, reverses immune suppression through the inhibition of Tregs and that this contributes to the antitumor activity of this agent against melanoma brain metastases. We found that the mean percentage of peripheral blood mononuclear cells expressing phosphorylated STAT3 (p-STAT3) was significantly elevated in samples from patients with melanoma brain metastases compared to healthy donors, 16.13 +/- 2.48% versus 4.17 +/- 1.79%. The p-STAT3 inhibitor WP1066 enhanced CD3+ (which contained Tregs) but not CD8+ T cell cytotoxicity against human A375 melanoma cells, indicating that this p-STAT3 blockade agent did not directly activate CD8+ T cells. Furthermore, the p-STAT3 inhibitor did not enhance the cytotoxicity of CD3+CD25- T cells (from which Tregs were excluded), indicating that the enhanced cytotoxicity of WP1066 is secondary to its inhibition of Tregs. This was confirmed by demonstrating that WP1066 inhibited FoxP3+ Treg induction in a dose-dependent manner. Moreover, CD3+ T cells exhibited markedly enhanced levels of phosphorylated ZAP-70, a critical proximal signal in T cell activation, after exposure to WP1066. Similar effects were not observed in Treg-depleted CD3+CD25- T cell populations, confirming that the T cell activation by WP compounds is secondary to their inhibition of the Tregs. These results suggest that WP1066 enhances T cell cytotoxicity against melanoma through inhibition of Tregs.
Collapse
|