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Rutledge E, Spiers A, Vardeman J, Griffin N, Nisar T, Muir T, Antosh DD. Educating Women About Pelvic Floor Disorders During Pregnancy From the First to the "Fourth Trimester": A Randomized Clinical Trial. Urogynecology (Phila) 2023; 29:770-776. [PMID: 37607311 DOI: 10.1097/spv.0000000000001341] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
IMPORTANCE Pregnancy and childbirth are risk factors for developing pelvic floor disorders (PFDs), and this continues postpartum ("fourth trimester"). Knowledge of PFDs among women of childbearing age is lacking and presents an opportunity for education. OBJECTIVES The aim of this study was to compare the increase in knowledge of PFDs in patients who received written handouts versus interactive workshops as measured by the Prolapse and Incontinence Knowledge Questionnaire (PIKQ). STUDY DESIGN This was a randomized clinical trial of pregnant patients 18 years or older. Patients either received written handouts only or received handouts and attended an interactive workshop. Handouts were created in collaboration with communication specialists focusing on risk factors and prevention strategies. The primary outcome was the change in PIKQ score. Secondary outcomes were Pelvic Floor Distress Inventory score and postpartum phone interviews of workshop group participants. Questionnaires were assessed at recruitment and 6 weeks postpartum. The nonparametric Wilcoxon test compared continuous variables, and the Fisher exact test compared categorical variables. RESULTS One hundred twenty patients were randomized. Demographics were similar between groups. Median PIKQ score change showed no difference between groups (P = 0.37). Pelvic Floor Distress Inventory-20 scores were similar between groups at baseline (P = 0.78) and postpartum (P = 0.82). Quantile regression showed posteducation PIKQ scores were significantly higher in the workshop (21.00 vs 17.00; P = 0.011) and written (21.00 vs 17.00; P < 0.001) groups. Phone interviews showed consistent themes: (1) greater awareness of PFDs, (2) more likely to discuss PFDs, and (3) relief that PFDs are treatable. Fifty-nine percent of patients preferred learning through workshops compared with the handouts. CONCLUSIONS Both groups showed improvement in knowledge of PFDs. Well-written, illustrated handouts were effective in increasing patient knowledge of PFDs.
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Affiliation(s)
- Emily Rutledge
- From the Division of Urogynecology, Department of Obstetrics and Gynecology, Houston Methodist Hospital, Houston, TX
| | - Alaina Spiers
- College of Communications, University of Houston, Houston, TX
| | | | - Nickie Griffin
- From the Division of Urogynecology, Department of Obstetrics and Gynecology, Houston Methodist Hospital, Houston, TX
| | - Tariq Nisar
- Houston Methodist Research Institute, Center for Outcomes Research, Houston, TX
| | - Tristi Muir
- From the Division of Urogynecology, Department of Obstetrics and Gynecology, Houston Methodist Hospital, Houston, TX
| | - Danielle D Antosh
- From the Division of Urogynecology, Department of Obstetrics and Gynecology, Houston Methodist Hospital, Houston, TX
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Young R, Muir T, Wang E, Chao L. Laparoscopic approach to a large 44cm adnexal mass. Am J Obstet Gynecol 2023. [DOI: 10.1016/j.ajog.2022.12.222] [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: 03/11/2023]
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Muir T, Chao L. Laparoscopic Excision of Retroperitoneal Adnexal Cyst. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.156] [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: 11/27/2022]
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Sendukas E, Muir T, Negrete Vasquez O, Pruszynski J, Chao L. 8553 The Effect of Obesity on the Accuracy of Uterine Weight Estimation and Impact on Hysterectomy Outcomes. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rozycki S, Rutledge E, Nisar T, Yadav G, Muir T, Antosh D. Impact of race and socioeconomic status on complications in pelvic organ prolapse repair. Am J Obstet Gynecol 2022. [DOI: 10.1016/j.ajog.2021.12.131] [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: 12/01/2022]
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Atkins B, Matthews S, Walton N, Mitchell J, Battaglia T, Muir T, Jennings GLR, Buttery AK. Development and uptake of the National Heart Foundation of Australia Smart Heart Guideline App. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Many organisations have developed Smartphone mobile applications (apps) to improve access and uptake of clinical guidelines, including the European Society of Cardiology and the American Heart Foundation. The National Heart Foundation of Australia publish clinical guidelines in collaboration with the Cardiac Society of Australia and New Zealand. We aimed to develop an app for three national guidelines: 1) the Australian clinical guidelines for the prevention and detection of atrial fibrillation 2018; 2) the Australian clinical guidelines for the detection and management of heart failure in Australia 2018; and 3) the Australian clinical guidelines for the management of acute coronary syndromes 2016.
Purpose
To develop a mobile app for Australian health professionals to improve access and uptake of national cardiac clinical guidelines.
Methods
A national health professional mobile app online survey was developed and distributed in 2017. Survey items included the frequency of searching for information about the prevention or management of cardiovascular disease, the methods of searching, and the likelihood of using an Australian-specific mobile app to access clinical guidelines. Following analysis of survey responses, a software developer was contracted to develop the app, which included user-testing. The Smart Heart Guidelines App was registered with the regulatory body in Australia, the Therapeutic Goods Administration, and made freely available from October 2019 on iOS and Android operating systems. The app was promoted using electronic direct mail, social media techniques (Twitter and LinkedIn), on our organisation's website and via printed flyers and materials at regional and national event stands at conferences. Data from the Apple App Store was analysed between 1 October 2019 – 1 October 2020 to evaluate app use.
Results
The health professional survey (respondents n=504; nurses 39%, allied health professionals 26%; GP/cardiologist 9%; researcher 8%; other 18%) showed most (n=447; 89%) reported accessing the Heart Foundation's resources electronically. The majority (n=355; 70%) reported they would be likely to use an Australian-specific app. Data from the Apple App Store indicated over 30,300 impressions (the number of times the Smart Heart App appeared in an App Store search) during the first year the app was available. This resulted in approximately 4,400 app downloads, with consistent “search-to-download rates” throughout the year (monthly average rate 22%). Of the downloads, 3,200 (82%) were a direct result of searching for the Smart Heart App, indicating promotional activities were effective.
Conclusion
Development of the Smart Heart Guideline App in Australia was indicated by health professionals to improve access to national cardiac clinical guidelines. Consistent app downloads and use during the first-year support further research, development, promotion, and evaluation of the app.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): The National Heart Foundation of Australia
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Affiliation(s)
- B Atkins
- The National Heart Foundation of Australia, Melbourne, Australia
| | - S Matthews
- The National Heart Foundation of Australia, Melbourne, Australia
| | - N Walton
- The National Heart Foundation of Australia, Melbourne, Australia
| | - J Mitchell
- The National Heart Foundation of Australia, Melbourne, Australia
| | - T Battaglia
- The National Heart Foundation of Australia, Melbourne, Australia
| | - T Muir
- The National Heart Foundation of Australia, Melbourne, Australia
| | - G L R Jennings
- The National Heart Foundation of Australia, Melbourne, Australia
| | - A K Buttery
- The National Heart Foundation of Australia, Melbourne, Australia
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Rutledge E, Pai S, Muir T, Antosh D. 19: Modified Manchester-Fothergill procedure for pelvic organ prolapse in a patient with spina bifida. Am J Obstet Gynecol 2020. [DOI: 10.1016/j.ajog.2019.12.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Richter HE, Dunivan G, Brown HW, Andy U, Dyer KY, Rardin C, Muir T, McNevin S, Paquette I, Gutman RE, Quiroz L, Wu J. A 12-Month Clinical Durability of Effectiveness and Safety Evaluation of a Vaginal Bowel Control System for the Nonsurgical Treatment of Fecal Incontinence. Female Pelvic Med Reconstr Surg 2019; 25:113-119. [PMID: 30807411 DOI: 10.1097/spv.0000000000000681] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The aim of this study was to characterize clinical success, impact on quality of life, and durability up to 1 year in women with fecal incontinence (FI) responsive to an initial test period with a trial vaginal bowel control system. METHODS This was a prospective open-label study in subjects with FI and successfully fit who underwent an initial 2-week trial period. Those achieving 50% or greater reduction in FI episodes were provided the long-term system. Primary outcome was success at 3 months defined as 50% or greater reduction in baseline FI episodes, also assessed at 6 and 12 months. Secondary outcomes included symptom impact measured with Fecal Incontinence Quality of Life scale, symptom severity by the St Mark's (Vaizey) questionnaire, Patient Global Impression of Improvement, and satisfaction. Adverse events were collected. Primary analysis was intention to treat (ITT). RESULTS Seventy-three subjects with baseline mean of 14.1 ± 12.15 FI episodes over 2 weeks entered the treatment period. Success rate at 3 months was 72.6% (53/73, P < 0.0001); per-protocol, 84.1% (53/63, P < 0.0001). Significant improvement in all Fecal Incontinence Quality of Life subscales and St Mark's questionnaire meeting minimally important differences was noted. Satisfaction was 91.7%, 89.7%, and 94.4% at 3, 6, and 12 months, respectively; 77.4%, 77.6%, and 79.6% were very much/much better on the Patient Global Impression of Improvement at 3, 6, and 12 months, respectively. Most common adverse event was vaginal wall injury, with most adverse events (90/134, 67%) occurring during fitting period. CONCLUSIONS In women with successful fitting and initial treatment response, durable efficacy was seen at 3, 6, and 12 months by objective and subjective measures, with favorable safety.
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Affiliation(s)
| | | | - Heidi W Brown
- University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI
| | - Uduak Andy
- University of Pennsylvania, Philadelphia, PA
| | | | | | | | | | | | - Robert E Gutman
- MedStar Washington Hospital Center/Georgetown University, Washington, DC
| | | | - Jennifer Wu
- University of North Carolina, Chapel Hill, NC
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Odili J, Kunte C, Clover J, Bertino G, Campana L, Muir T, Liew S, Moir G, Orlando A, Kis E, Mowatt D, Saxinger W, Quaglino P, Sersa G, Curatolo P, Bechara F, Rutkowski P, De Cian F, Matteucci P, Gehl J. Electrochemotherapy as an adjunct to the surgical management of metastatic melanoma: experience of the inspECT group (2008 to 2018). Eur J Surg Oncol 2019. [DOI: 10.1016/j.ejso.2018.10.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Bertino G, Di Felice S, De Terlizzi F, Muir T, Curatolo P, Rotunno R, Groselj A, Kis E, Gehl J, Clover A, Campana L, Moir G, Odili J, Liew S, Quaglino P, Kunte C, Orlando A. Basal cell carcinoma and electrochemotherapy: the InspECT experience. Eur J Surg Oncol 2019. [DOI: 10.1016/j.ejso.2018.10.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Horbach S, van der Horst C, Blei F, van der Vleuten C, Frieden IJ, Richter G, Tan S, Muir T, Penington A, Boon L, Spuls P. 针对外周血管畸形的国际核心指标集的开发(OVAMA项目). Br J Dermatol 2018. [DOI: 10.1111/bjd.16314] [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: 11/29/2022]
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Pai S, Melamed G, Yurteri-Kaplan L, Grimes C, Muir T, Antosh D. 88: Rate of post-operative urinary tract infection with use of 50% dextrose versus 20% mannitol for intraoperative cystoscopy during surgery for pelvic organ prolapse. Am J Obstet Gynecol 2018. [DOI: 10.1016/j.ajog.2017.12.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Horbach S, van der Horst C, Blei F, van der Vleuten C, Frieden IJ, Richter G, Tan S, Muir T, Penington A, Boon L, Spuls P. Development of an international core outcome set for peripheral vascular malformations: the OVAMA project. Br J Dermatol 2018. [DOI: 10.1111/bjd.16296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Horbach S, van der Horst C, Blei F, van der Vleuten C, Frieden I, Richter G, Tan S, Muir T, Penington A, Boon L, Spuls P. Development of an international core outcome set for peripheral vascular malformations: the OVAMA project. Br J Dermatol 2018; 178:473-481. [DOI: 10.1111/bjd.16029] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/01/2017] [Indexed: 01/03/2023]
Affiliation(s)
- S.E.R. Horbach
- Department of Plastic, Reconstructive and Hand Surgery; Academic Medical Center (AMC); University of Amsterdam; the Netherlands
| | - C.M.A.M. van der Horst
- Department of Plastic, Reconstructive and Hand Surgery; Academic Medical Center (AMC); University of Amsterdam; the Netherlands
| | - F. Blei
- Department of Pediatrics; Lenox Hill Hospital; New York NY U.S.A
| | | | - I.J. Frieden
- Department of Dermatology; University of California San Francisco; San Francisco U.S.A
| | - G.T. Richter
- Department of Otolaryngology; Arkansas Children's Hospital; Little Rock; AR U.S.A
| | - S.T. Tan
- Wellington Regional Plastic, Maxillofacial and Burns Unit; Hutt Hospital; Wellington New Zealand
- Gillies McIndoe Research Institute; Wellington New Zealand
| | - T. Muir
- Department of Plastic and Reconstructive Surgery; James Cook University Hospital; Middlesbrough U.K
| | - A.J. Penington
- Department of Paediatrics; University of Melbourne; Melbourne Australia
- Murdoch Children's Research Institute; Melbourne Australia
| | - L.M. Boon
- Center for Vascular Anomalies; Division of Plastic and Reconstructive Surgery; Cliniques Universitaires Saint-Luc; Brussels Belgium
| | - P.I. Spuls
- Department of Dermatology; Academic Medical Center (AMC); University of Amsterdam; the Netherlands
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McMorrow L, Shaikh M, Kessell G, Muir T. Bleomycin electrosclerotherapy: new treatment to manage vascular malformations. Br J Oral Maxillofac Surg 2017; 55:977-979. [DOI: 10.1016/j.bjoms.2017.10.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 10/03/2017] [Indexed: 10/18/2022]
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Atkinson K, Murugan S, Kessell G, Shaikh M, Muir T. Electrochemotherapy Using Intratumoral Bleomycin for the Treatment of Basal Cell Carcinoma–Single Surgeon Results 2011 - 2016. Int J Surg 2017. [DOI: 10.1016/j.ijsu.2017.08.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kunte C, Letulé V, Gehl J, Dahlstroem K, Curatolo P, Rotunno R, Muir T, Occhini A, Bertino G, Powell B, Saxinger W, Lechner G, Liew SH, Pritchard-Jones R, Rutkowski P, Zdzienicki M, Mowatt D, Sykes A, Orlando A, Mitsala G, Rossi C, Campana L, Brizio M, de Terlizzi F, Quaglino P, Odili J. Electrochemotherapy in the treatment of metastatic malignant melanoma: a prospective cohort study by InspECT. Br J Dermatol 2017; 176:1475-1485. [DOI: 10.1111/bjd.15340] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2016] [Indexed: 12/16/2022]
Affiliation(s)
- C. Kunte
- Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
| | - V. Letulé
- Department of Dermatology and Allergology; Ludwig-Maximilian University; Munich Germany
| | - J. Gehl
- Center for Experimental Drug and Gene Electrotransfer; Department of Oncology; Copenhagen University Hospital Herlev; Herlev Denmark
| | - K. Dahlstroem
- Department of Plastic Surgery; Copenhagen University Hospital Herlev; Denmark
| | - P. Curatolo
- Department of Dermatology and Plastic Surgery; Dermatologic Clinic; University of Rome ‘La Sapienza’; Rome Italy
| | - R. Rotunno
- Department of Dermatology and Plastic Surgery; Dermatologic Clinic; University of Rome ‘La Sapienza’; Rome Italy
| | - T. Muir
- Department of Reconstructive Plastic Surgery; James Cook University Hospital; Middlesbrough U.K
| | - A. Occhini
- Department of Otolaryngology Head & Neck Surgery; University of Pavia; IRCCS Policlinico San Matteo Foundation; Pavia Italy
| | - G. Bertino
- Department of Otolaryngology Head & Neck Surgery; University of Pavia; IRCCS Policlinico San Matteo Foundation; Pavia Italy
| | - B. Powell
- Department of Plastic Surgery; St George's Hospital; London U.K
| | - W. Saxinger
- Department of Dermatology; Klinikum Wels-Grieskirchen; Wels Austria
| | - G. Lechner
- Department of Dermatology; Klinikum Wels-Grieskirchen; Wels Austria
| | - S.-H. Liew
- Department of Plastic Surgery; Whiston Hospital; Prescot Merseyside U.K
| | | | - P. Rutkowski
- Department of Soft Tissue/Bone Sarcoma and Melanoma; Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology; Warsaw Poland
| | - M. Zdzienicki
- Department of Soft Tissue/Bone Sarcoma and Melanoma; Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology; Warsaw Poland
| | | | - A.J. Sykes
- Department of Clinical Oncology; Christie Hospital; NHS Foundation Trust; Manchester U.K
| | - A. Orlando
- Department of Plastic and Reconstructive Surgery; Southmead Hospital; North Bristol NHS Trust; Bristol U.K
| | - G. Mitsala
- Department of Plastic and Reconstructive Surgery; Southmead Hospital; North Bristol NHS Trust; Bristol U.K
| | - C.R. Rossi
- Veneto Institute of Oncology IOV-IRCCS; Padova Italy
- Department of Surgery, Oncology and Gastroenterology; University of Padova; Padova Italy
| | - L. Campana
- Veneto Institute of Oncology IOV-IRCCS; Padova Italy
- Department of Surgery, Oncology and Gastroenterology; University of Padova; Padova Italy
| | - M. Brizio
- Department of Medical Sciences; Dermatologic Clinic; University of Torino; Torino Italy
| | - F. de Terlizzi
- Scientific and Medical Department; IGEA S.p.A.; Carpi Italy
| | - P. Quaglino
- Department of Medical Sciences; Dermatologic Clinic; University of Torino; Torino Italy
| | - J. Odili
- Department of Plastic Surgery; St George's Hospital; London U.K
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Matthiessen L, Keshtgar M, Kunte C, Grischke EM, Odili J, Muir T, Curatolo P, Mowatt D, Clover J, Liew S, Hansen H, Newby J, Letulé V, Stauss E, Humphreys A, Banerjee S, Klein A, de Terlizzi F, Gehl J. Electrochemotherapy for breast cancer - results from the INSPECT database. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw365.55] [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: 11/14/2022] Open
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Ng A, Amer A, Hayes A, Surgeoner M, Milburn S, Walker P, Muir T, Wight R, Hansrani M. Going off licence can save lives: Common carotid artery stenting as an adjunct to emergency repair of carotid-pharyngeal fistula. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.131] [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: 11/16/2022]
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Richter H, Matthews C, Varma M, Takase-Sanchez M, Hale D, Van Drie D, Muir T. Clinical Efficacy and Safety Evaluation of the Vaginal Control (VBC) System for Treatment of Fecal Incontinence. J Minim Invasive Gynecol 2014. [DOI: 10.1016/j.jmig.2014.08.203] [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: 10/24/2022]
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Matthews C, Varma M, Takase-Sanchez M, Hale D, Van Drie D, Muir T, Wells E, Jannelli M, Richter H. Clinical Characteristics Associated with Successful Use of a Novel Vaginal Bowel Control System for the Treatment of Fecal Incontinence. J Minim Invasive Gynecol 2014. [DOI: 10.1016/j.jmig.2014.08.200] [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: 11/29/2022]
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El-Nashar SA, Paraiso MF, Rodewald K, Muir T, Abdelhafez F, Lazebnik N, Bedaiwy MA. Laparoscopic cervicoisthmic cerclage: technique and systematic review of the literature. Gynecol Obstet Invest 2012; 75:1-8. [PMID: 23258131 DOI: 10.1159/000343036] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Accepted: 08/23/2012] [Indexed: 11/19/2022]
Abstract
BACKGROUND AND AIMS To report on and review the outcome after laparoscopic cervicoisthmic cerclage (LCC) and robotic-assisted laparoscopic cervicoisthmic cerclage. METHODS We reported on 4 cases of LCC and conducted a systematic review of the literature up to May 2012 to identify obstetric outcomes after LCC and robotic-assisted LCC. RESULTS The median age of our series was 35 years (range: 31-41) with median previous pregnancies 3.5 (2-5). All 4 women had successful obstetric outcomes with a median gestational age at delivery of 37 weeks (range: 36-38). The systematic review identified 25 studies (162 women underwent LCC and 3 had robotic-assisted LCC). In the interval LLC studies, the median age was 33 years (range: 22-42); with a median gestational age at delivery of 37 weeks (range: 34-38). For prophylactic LCC, the median age was 31 years (range: 27-41); with a gestational age at delivery of 37 weeks (range: 19-39). Two of the three robotic-assisted LCC procedures were done prophylactically. The median age was 27 years (range: 23-37) with a median gestational age at delivery of 37 weeks (range: 35-38). CONCLUSION LCC is feasible during and in between pregnancies as well as in congenitally malformed uteri. Current evidence suggests that LCC might be of benefit in selected cases of cervical insufficiency with short cervices.
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Affiliation(s)
- Sherif A El-Nashar
- Department of Obstetrics and Gynecology, Assiut University, Assiut, Egypt
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Sainsbury DCG, Allison KP, Muir T. Electrochemotherapy treatment of a recalcitrant earlobe keloid scar with chronic lymphocytic leukaemia infiltration. J Plast Reconstr Aesthet Surg 2010; 63:e733-6. [PMID: 20627836 DOI: 10.1016/j.bjps.2010.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 04/14/2010] [Accepted: 05/07/2010] [Indexed: 02/08/2023]
Abstract
Electrochemotherapy, a tumour ablation modality, which facilitates intracellular delivery of poorly-permeable cytotoxic drugs, such as bleomycin, has shown promising results in the treatment of cutaneous and subcutaneous melanomatous and non-melanomatous metastases. We report the case of a 52-year-old Caucasian gentleman with a keloid scar to his left earlobe that developed following a piercing. Despite multiple intralesional steroidal injections, five intralesional excisions and a course of superficial radiotherapy the keloid scar remained over nine years later. For 15 years the patient had also suffered chronic lymphocytic leukaemia with no nodal disease or systemic involvement. However, histological analysis of the final surgical excision specimen showed chronic lymphocytic leukaemia infiltration of the keloid scar. Further surgical excision seemed unwise considering the recalcitrance of the keloid scar. Additionally, no systemic chemotherapy treatment options were feasible. Electrochemotherapy was performed under local anaesthesia with the aim of eradicating the chronic lymphocytic leukaemia deposit within the keloid lesion. Four sessions of electrochemotherapy using bleomycin were deployed over 11 months. A deep core biopsy of the treated keloid performed three months following the last electrochemotherapy session showed no evidence of chronic lymphocytic leukaemia. Serendipitously, following the initial electrochemotherapy treatment no further growth of the keloid scar was observed. Furthermore, subsequent electrochemotherapy led to a substantial reduction in size of the keloid sustained for 14 months at last follow-up. This report highlights the exciting potential of electrochemotherapy and bleomycin in the treatment of recalcitrant scars. Larger, well-designed clinical and in-vitro studies are required to further elucidate the exact role, mechanism and cost-effectiveness of electrochemotherapy in this area.
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Affiliation(s)
- D C G Sainsbury
- Department of Plastic & Reconstructive Surgery, James Cook University Hospital, Middlesbrough, UK.
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Sainsbury D, Stevens D, Humphreys A, Kessell G, Bond J, Muir T. 9342 Electrochemotherapy treatment of metastatic cutaneous cancer. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71986-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: 10/20/2022] Open
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Komesu Y, Urwitz-Lane R, Ozel B, Lukban J, Kahn M, Muir T, Fenner D, Rogers R. Does mental imagery prior to cystoscopy make a difference? A randomized controlled trial. Am J Obstet Gynecol 2009; 201:218.e1-9. [PMID: 19481728 PMCID: PMC3623945 DOI: 10.1016/j.ajog.2009.04.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2008] [Revised: 01/15/2009] [Accepted: 04/10/2009] [Indexed: 10/20/2022]
Abstract
OBJECTIVE We sought to determine whether mental imagery improves surgical performance of residents novice to cystoscopy. STUDY DESIGN We performed a multicenter randomized controlled trial. Residents who had performed < or = 3 cystoscopies were randomized to preoperative mental imagery sessions or reading a book chapter describing cystoscopy. The primary outcome was comparison of groups' surgical performance scores. Secondary outcomes were measurements of operative times and resident ratings of helpfulness of their preparation. Scores were compared using 2-factor analysis of variance. RESULTS In all, 68 residents were randomized; 33 to imagery and 35 to control groups. Groups did not differ in age, cystoscopic experience, residency level, or sex. The imagery group's surgical assessment scores were 15.9% higher than controls (P = .03). Operative times did not differ between groups. Imagery residents rated imagery preparation as more helpful than controls (P < .0001). CONCLUSION Residents considered mental imagery to be a more useful preoperative preparation. The mental imagery group's surgical performance was superior to controls.
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Affiliation(s)
- Yuko Komesu
- University of New Mexico Health Sciences Center Department of Obstetrics and Gynecology, Albuquerque, NM
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Kessell G, Panchatsharam S, Kothmann E, Finn P, Fall A, Guhan A, Muir T. General anaesthesia for intralesional bleomycin therapy of vascular malformations: initial 3 yr experience. Br J Anaesth 2009; 102:431-2. [DOI: 10.1093/bja/aen395] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kearney L, Wai B, Patel S, Ord M, McCormack C, Muir T, Burrell L, Srivastava P. Myocardial Strain Imaging with Speckle-tracking Echocardiography Detects Subclinical Myocardial Dysfunction in Subjects with Aortic Stenosis. Heart Lung Circ 2009. [DOI: 10.1016/j.hlc.2009.05.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ionescu G, Mabeta P, Dippenaar N, Muir T, Fourie P, Shelver G. Bleomycin plasma spill-over levels in paediatric patients undergoing intralesional injection for the treatment of haemangiomas. S Afr Med J 2008; 98:539-540. [PMID: 18785394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
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Muir T. Office gynecology. Preface. Obstet Gynecol Clin North Am 2008; 35:xv-xvi. [PMID: 18486834 DOI: 10.1016/j.ogc.2008.03.011] [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: 12/01/2022]
Affiliation(s)
- Tristi Muir
- Section of Female Pelvic Medicine and Reconstructive Pelvic Surgery, Scott & White Temple Clinic, Temple, TX 76508, USA.
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Abstract
Urinary retention rarely affects reproductive-age women. In obstructive retention, the source must be determined and then removed to allow the patient to void normally. The most common causes of obstructive retention are gynecologic surgery and pelvic masses. Two women with intermittent urinary retention were evaluated in our clinic. Case 1 was a 48-year-old patient who voided frequently to avoid urinary retention. She had an ultrasound showing a large posterior leiomyoma. Case 2 was a 49-year-old female who presented with urinary retention during her menses. Magnetic resonance imaging result showed a large posterior leiomyoma deflecting the cervix anteriorly. Both women's urinary retention completely resolved after a total abdominal hysterectomy. Uterine leiomyomas may be the cause of urinary retention in reproductive-age females without other etiologies.
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Affiliation(s)
- Scott Barnacle
- Obstetrics and Gynecology, David Grant Medical Center, 101 Bodin Circle, Travis AFB, CA 94535-1800, USA.
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Abstract
Successful treatment of vascular anomalies has eluded the physician until now, despite various treatments utilised. Bleomycin has been successfully used in intralesional injection treatment of cystic hygromas and haemangiomas, based specifically on a high sclerosing effect on vascular endothelium. In a prospective study of 95 patients, the effectiveness of intralesional bleomycin injection (IBI) treatment in haemangiomas and vascular malformations was evaluated and documented. Complete resolution or significant improvement occurred in 80% of all patients treated. Complete resolution occurred in 49% of haemangiomas, 32% of venous malformations, and 80% of cystic hygromas. Significant improvement occurred in 38% of haemangiomas, 52% of venous malformations, 13% of cystic hygromas and 50% of lymphatic malformations. Of the six patients who presented with a painful lesion, four experienced complete resolution and two had significant improvement to treatment. Local complications encountered were superficial ulceration occurring in 2 patients, and cellulitis in 1 of the 95 patients. Systemic complications were flu-like symptoms in three patients and partial, transient hair loss in two patients. None of the patients presented with haematological toxic effects or signs of pulmonary involvement (fibrosis, hypertension). IBI is an effective treatment in haemangiomas and vascular malformation lesions, obviating the need for invasive primary surgery or systemic treatment regimens in 80% of cases, and allowing for limited need of secondary surgical or adjunctive procedures in cases with a moderate result.
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Affiliation(s)
- T Muir
- James Cook University Hospital, North Yorkshire, Middlesbrough, UK.
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Muir T, Zegarac M. Societal costs of exposure to toxic substances: economic and health costs of four case studies that are candidates for environmental causation. Environ Health Perspect 2001. [PMID: 11744507 DOI: 10.2307/3454651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Four outcomes that evidence suggests are candidates for "environmental causation" were chosen for analysis: diabetes, Parkinson's disease (PD), neurodevelopmental effects and hypothyroidism, and deficits in intelligence quotient (IQ). These are an enormous burden in the United States, Canada, and other industrial countries. We review findings on actual social and economic costs, construct estimates of some of the costs from pertinent sources, and provide several hypothetical examples consistent with published evidence. Many detailed costs are estimated, but these are fragmented and missing in coverage and jurisdiction. Nonetheless, the cumulative costs identified are very large, totaling $568 billion to $793 billion per year for Canada and the United States combined. Partial Canadian costs alone are $46 billion to $52 billion per year. Specifics include diabetes (United States and Canada), $128 billion per year; PD in the United States, $13 billion to $28.5 billion per year; neurodevelopmental deficits and hypothryoidism are endemic and, including estimates of costs of childhood disorders that evidence suggests are linked, amount to $81.5 billion to $167 billion per year for the United States and $2 billion per year in Ontario; loss of 5 IQ points cost $30 billion per year in Canada and $275 billion to $326 billion per year in the United States; and hypothetical dynamic economic impacts cost another $19 billion to $92 billion per year for the United States and Canada combined. Reasoned arguments based on the weight of evidence can support the hypothesis that at least 10%, up to 50% of these costs are environmentally induced--between $57 billion and $397 billion per year.
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Affiliation(s)
- T Muir
- Great Lakes and Corporate Affairs, Environment Canada-Ontario Region, Burlington, Ontario, Canada.
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Muir T, Zegarac M. Societal costs of exposure to toxic substances: economic and health costs of four case studies that are candidates for environmental causation. Environ Health Perspect 2001; 109 Suppl 6:885-903. [PMID: 11744507 PMCID: PMC1240624 DOI: 10.1289/ehp.01109s6885] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Four outcomes that evidence suggests are candidates for "environmental causation" were chosen for analysis: diabetes, Parkinson's disease (PD), neurodevelopmental effects and hypothyroidism, and deficits in intelligence quotient (IQ). These are an enormous burden in the United States, Canada, and other industrial countries. We review findings on actual social and economic costs, construct estimates of some of the costs from pertinent sources, and provide several hypothetical examples consistent with published evidence. Many detailed costs are estimated, but these are fragmented and missing in coverage and jurisdiction. Nonetheless, the cumulative costs identified are very large, totaling $568 billion to $793 billion per year for Canada and the United States combined. Partial Canadian costs alone are $46 billion to $52 billion per year. Specifics include diabetes (United States and Canada), $128 billion per year; PD in the United States, $13 billion to $28.5 billion per year; neurodevelopmental deficits and hypothryoidism are endemic and, including estimates of costs of childhood disorders that evidence suggests are linked, amount to $81.5 billion to $167 billion per year for the United States and $2 billion per year in Ontario; loss of 5 IQ points cost $30 billion per year in Canada and $275 billion to $326 billion per year in the United States; and hypothetical dynamic economic impacts cost another $19 billion to $92 billion per year for the United States and Canada combined. Reasoned arguments based on the weight of evidence can support the hypothesis that at least 10%, up to 50% of these costs are environmentally induced--between $57 billion and $397 billion per year.
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Affiliation(s)
- T Muir
- Great Lakes and Corporate Affairs, Environment Canada-Ontario Region, Burlington, Ontario, Canada.
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Stanger HE, Syud FA, Espinosa JF, Giriat I, Muir T, Gellman SH. Length-dependent stability and strand length limits in antiparallel beta -sheet secondary structure. Proc Natl Acad Sci U S A 2001; 98:12015-20. [PMID: 11593011 PMCID: PMC59824 DOI: 10.1073/pnas.211536998] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Designed peptides that fold autonomously to specific conformations in aqueous solution are useful for elucidating protein secondary structural preferences. For example, autonomously folding model systems have been essential for establishing the relationship between alpha-helix length and alpha-helix stability, which would be impossible to probe with alpha-helices embedded in folded proteins. Here, we use designed peptides to examine the effect of strand length on antiparallel beta-sheet stability. alpha-Helices become more stable as they grow longer. Our data show that a two-stranded beta-sheet ("beta-hairpin") becomes more stable when the strands are lengthened from five to seven residues, but that further strand lengthening to nine residues does not lead to further beta-hairpin stabilization for several extension sequences examined. (In one case, all-threonine extension, there may be an additional stabilization on strand lengthening from seven to nine residues.) These results suggest that there may be an intrinsic limit to strand length for most sequences in antiparallel beta-sheet secondary structure.
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Affiliation(s)
- H E Stanger
- Department of Chemistry, University of Wisconsin, Madison, WI 53706, USA
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Zvara A, Fajardo JE, Escalante M, Cotton G, Muir T, Kirsch KH, Birge RB. Activation of the focal adhesion kinase signaling pathway by structural alterations in the carboxyl-terminal region of c-Crk II. Oncogene 2001; 20:951-61. [PMID: 11314030 DOI: 10.1038/sj.onc.1204173] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2000] [Revised: 12/08/2000] [Accepted: 12/12/2000] [Indexed: 12/16/2022]
Abstract
The Crk II adaptor protein encodes an SH2/SH3-domain containing adaptor protein with an SH2-SH3-SH3 domain structure that transmits signals from tyrosine kinases. The two SH3 domains are separated by a 54 amino acid linker region, whose length is highly conserved in xenopus, chicken, and mamalian Crk II proteins. To gain a better understanding into the role of the C-terminal region of Crk, we generated a series of C-terminal SH3 domain and SH3 linker mutants and examined their role in tyrosine kinase pathways. Expression of point mutations in the C-terminal SH3 domain (W276K Crk), at the tyrosine phosphorylation site (Y222F Crk II), or truncation of the entire C-terminus (Crk I or Crk Delta242), all increased c-Abl binding to the N-terminal SH3 domain of Crk and, where relevant, increased Tyr(222) phosphorylation. Deletion analysis of c-Crk II also revealed the presence of a C-terminal segment important for trans-activation of FAK. Such mutants, Crk Delta255 or Crk Delta242 Extended Linker (Crk Delta242([EL])), characterized by a disruption in the SH3 linker/C-terminal SH3 boundary, induced robust hyperphosphorylation of focal adhesion kinase (FAK) on Tyr(397), hyperphosphorylation of focal adhesion proteins p130(cas) and paxillin and increased focal adhesion formation in NIH3T3 cells. The effects of Crk Delta242([EL]) could be abrogated by co-expression of dominant negative c-Src or the protein tyrosine phosphatase PTP-PEST, but not by dominant negative Abl. Our results suggest that the C-terminal region of Crk contains negative regulatory elements important for both Abl and FAK dependent signal pathways, and offers a paradigm for an autoinhibitory region in the SH3 linker/C-terminal SH3 domain.
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Affiliation(s)
- A Zvara
- Laboratory of Molecular Oncology, The Rockefeller University, New York, NY 10021, USA
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37
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Abstract
The case of a 56 year old man who suffered a spontaneous intracerebral haemorrhage after regular self medication with the herbal preparation, Ginkgo biloba leaf extract is described, and the possible association is discussed.
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Affiliation(s)
- J Benjamin
- Rehabilitation Medicine Unit, Astley Ainslie Hospital, Edinburgh EH9 2HL, UK.
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Layfield R, Franklin K, Landon M, Walker G, Wang P, Ramage R, Brown A, Love S, Urquhart K, Muir T, Baker R, Mayer RJ. Chemically synthesized ubiquitin extension proteins detect distinct catalytic capacities of deubiquitinating enzymes. Anal Biochem 1999; 274:40-9. [PMID: 10527495 DOI: 10.1006/abio.1999.4234] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We have used solid-phase chemistry to synthesize proteins equivalent to a human ubiquitin precursor (ubiquitin-52-amino-acid ribosomal protein fusion; UBICEP52) and representative of isopeptide-linked ubiquitin-protein conjugates [ubiquitin-(epsilonN)-lysine]; these proteins were precisely cleaved by a purified recombinant Drosophila deubiquitinating enzyme (DUB), UCH-D. Along with the previously synthesized ubiquitin-(alphaN)-valine, these synthetic proteins were used as substrates to assess the catalytic capacities of a number of diverse DUBs expressed in Escherichia coli: human HAUSP; mouse Unp; and yeast Ubps 1p, 2p, 3p, 6p, 11p, and 15p and Yuh1p. Distinct specificities of these enzymes were detected; notably, in addition to UCH-D, isopeptidase activity [ubiquitin-(epsilonN)-lysine cleavage] was only associated with Yuh1p, Unp, Ubp1p, and Ubp2p. Additionally, human placental 26S proteasomes were only able to cleave UBICEP52 and ubiquitin-(epsilonN)-lysine, suggesting that 26S proteasome-associated DUBs are class II-like. This work demonstrates that the synthetic approach offers an alternative to recombinant methods for the production of small proteins in vitro.
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Affiliation(s)
- R Layfield
- Laboratory of Intracellular Proteolysis, School of Biomedical Sciences, University of Nottingham Medical School, Queen's Medical Centre, Nottingham, NG7 2UH, United Kingdom.
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Potash MJ, Bentsman G, Muir T, Krachmarov C, Sova P, Volsky DJ. Peptide inhibitors of HIV-1 protease and viral infection of peripheral blood lymphocytes based on HIV-1 Vif. Proc Natl Acad Sci U S A 1998; 95:13865-8. [PMID: 9811892 PMCID: PMC24935 DOI: 10.1073/pnas.95.23.13865] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We recently reported that HIV-1 Vif (virion infectivity factor) inhibits HIV-1 protease in vitro and in bacteria, suggesting that it may serve as the basis for the design of new protease inhibitors and treatment for HIV-1 infection. To evaluate this possibility, we synthesized peptide derivatives from the region of Vif, which inhibits protease, and tested their activity on protease. In an assay of cleavage of virion-like particles composed of HIV-1 Gag precursor polyprotein, full-length recombinant Vif, and a peptide consisting of residues 21-65 of Vif, but not a control peptide or BSA, inhibited protease activity. Vif21-65 blocked protease at a molar ratio of two to one. We then tested this peptide and a smaller peptide, Vif41-65, for their effects on HIV-1 infection of peripheral blood lymphocytes. Both Vif peptides inhibited virus expression below the limit of detection, but control peptides had no effect. To investigate its site of action, Vif21-65 was tested for its effect on Gag cleavage by protease during HIV-1 infection. We found that commensurate with its reduction of virus expression, Vif21-65 inhibited the cleavage of the polyprotein p55 to mature p24. These results are similar to those obtained by using Ro 31-8959, a protease inhibitor in clinical use. We conclude that Vif-derived peptides inhibit protease during HIV-1 infection and may be useful for the development of new protease inhibitors.
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Affiliation(s)
- M J Potash
- Molecular Virology Laboratory, St. Luke's-Roosevelt Hospital Center, Columbia University, New York, NY 10019, USA
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Oakley GA, Muir T, Ray M, Girdwood RW, Kennedy R, Donaldson MD. Increased incidence of congenital malformations in children with transient thyroid-stimulating hormone elevation on neonatal screening. J Pediatr 1998; 132:726-30. [PMID: 9580779 DOI: 10.1016/s0022-3476(98)70369-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We investigated the incidence of congenital malformation in all infants with raised thyroid-stimulating hormone (TSH) levels on neonatal screening in Scotland between August 1979 and December 1993. Of 344 infants with elevated TSH, 31 (9%) had one or more malformations: 12 cardiac 15 noncardiac, and 16 dysmorphic syndromes (including 5 with Down syndrome). Criteria were devised to distinguish between definite or probable congenital hypothyroidism and transient TSH elevation. Congenital hypothyroidism was considered definite in 224 (65.1%) infants and probable in 11 (3.2%). Eighty-eight (25.6%) infants had transient TSH elevation, whereas thyroid status was uncertain in 21 (6.1%). In the definite group 12 (5.4%) infants had one or more malformations compared with 13 (14.8%) in the transient group. Cardiac malformation, noncardiac malformation, dysmorphic syndromes, and "sickness" were much more frequent in the transient compared with the definite group: 5.7% versus 1.8%, 8.0% versus 1.8%, 6.8% versus 2.7%, and 37.5% versus 7.1%, respectively. The incidence of congenital malformation in bonafide congenital hypothyroidism is lower than has been previously reported. The high incidence of congenital malformation associated with transient TSH elevation indicates the need to reevaluate the diagnosis of hypothyroidism in all infants with TSH elevation and concurrent illness or malformation.
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Affiliation(s)
- G A Oakley
- University Department of Child Health, Royal Hospital for Sick Children, Yorkhill, Glasgow, Scotland
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Muir T. Diabetes: the role of the enrolled nurse in managing a diabetic patient. Lamp 1997; 54:35. [PMID: 9335760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Franklin K, Layfield R, Landon M, Ramage R, Brown A, Love S, Muir T, Urquhart K, Bownes M, Mayer RJ. Capillary electrophoresis assay for ubiquitin carboxyl-terminal hydrolases with chemically synthesized ubiquitin-valine as substrate. Anal Biochem 1997; 247:305-9. [PMID: 9177692 DOI: 10.1006/abio.1997.2099] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [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: 02/04/2023]
Abstract
Ubiquitin is expressed in eukaryotic cells as precursors, fused via its carboxyl terminus either to other ubiquitin sequences in linear polyubiquitin arrays or to specific ribosomal proteins. In some of the polyubiquitin fusions a single amino acid (e.g., valine in humans) is attached to the carboxyl terminus. These gene products are rapidly (probably cotranslationally) cleaved by ubiquitin carboxyl-terminal hydrolase (UCH) enzymes; therefore, although ubiquitin precursors are suitable substrates for assays of UCH activity, they are difficult to isolate from nucleated cells. While the recombinant approach allows the production of ubiquitin precursors in prokaryotic cells (which do not contain the ubiquitin system), proteins produced in this manner require purification and may also be susceptible to modification by bacterial enzymes, e.g., adventitious proteolysis. As an alternative we have chemically synthesized human ubiquitin-valine. In the assay described here the cleavage of ubiquitin-valine to ubiquitin (77 and 76 residue proteins, respectively) by a purified recombinant Drosophila UCH was monitored by capillary electrophoresis. Mass spectrometry verified the precise cleavage of ubiquitin-valine, confirming that this synthetic protein is a UCH substrate. Synthetic ubiquitin-valine may serve as a generic substrate for UCHs allowing the purification and identification of new members of this enzyme family.
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Affiliation(s)
- K Franklin
- Department of Biochemistry, University of Nottingham Medical School, Queen's Medical Centre, United Kingdom
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Stewart PL, Chiu CY, Huang S, Muir T, Zhao Y, Chait B, Mathias P, Nemerow GR. Cryo-EM visualization of an exposed RGD epitope on adenovirus that escapes antibody neutralization. EMBO J 1997; 16:1189-98. [PMID: 9135136 PMCID: PMC1169718 DOI: 10.1093/emboj/16.6.1189] [Citation(s) in RCA: 137] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Interaction of the adenovirus penton base protein with alpha v integrins promotes virus entry into host cells. The location of the integrin binding sequence Arg-Gly-Asp (RGD) on human type 2 adenovirus (Ad2) was visualized by cryo-electron microscopy (cryo-EM) and image reconstruction using a mAb (DAV-1) which recognizes a linear epitope, IRGDTFATR. The sites for DAV-1 binding corresponded to the weak density above each of the five 22 A protrusions on the adenovirus penton base protein. Modeling of a Fab fragment crystal structure into the adenovirus-Fab cryo-EM density indicated a large amplitude of motion for the Fab and the RGD epitope. An unexpected finding was that Fab fragments, but not IgG antibody molecules, inhibited adenovirus infection. Steric hindrance from the adenovirus fiber and a few bound IgG molecules, as well as epitope mobility, most likely prevent binding of IgG antibodies to all five RGD sites on the penton base protein within the intact virus. These studies indicate that the structure of the adenovirus particle facilitates interaction with cell integrins, whilst restricting binding of potentially neutralizing antibodies.
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Affiliation(s)
- P L Stewart
- Department of Immunology, The Scripps Research Institute, La Jolla, CA, USA
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Leckie B, Christie J, Dow JW, Muir T. Production of atrial natriuretic peptide and cell proliferation in ventricular myocytes given angiotensin II in culture. J Hum Hypertens 1994; 8:607-8. [PMID: 7990090] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- B Leckie
- Department of Medicine, Leicester Royal Infirmary, Glasgow
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Affiliation(s)
- S C Smith
- Department of Applied Biology, Royal Melbourne Institute of Technology, Victoria
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Smith SC, Barrett LM, Muir T, Christopher WL, Coloe PJ. Application and evaluation of enzyme-linked immunosorbent assay and immunoblotting for detection of antibodies to Treponema hyodysenteriae in swine. Epidemiol Infect 1991; 107:285-96. [PMID: 1936151 PMCID: PMC2272052 DOI: 10.1017/s0950268800048937] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [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: 12/29/2022] Open
Abstract
An enzyme-linked immunoassay (ELISA) has been developed to detect serum Immunoglobulin antibodies G and M to Treponema hyodysenteriae in vaccinated, experimentally infected and naturally infected swine. Naturally infected swine gave ELISA titres that were similar to experimentally infected swine, but were significantly less than the titres of vaccinated swine. When serum from naturally infected swine was used to probe nitrocellulose blots of sodium dodecyl sulphate-polyacrylamide gel electrophoresed whole cell proteins of T. hyodysenteriae, the immunoblotting patterns showed IgG antibodies were produced against many T. hyodysenteriae protein antigens and against lipopolysaccharide (LPS). The IgG antibodies directed against LPS were serotype-specific for that LPS and could be used to identify the serotype involved in the T. hyodysenteriae infection in that herd. IgM immunoblots also reacted with the many protein antigens but were less specific for LPS antigen, with a substantial degree of cross-reaction between the LPS of all serotypes. The data demonstrate that a microplate enzyme-linked immunosorbent assay, coupled with immunoblotting, is a very specific and sensitive test for detection of antibody to Treponema hyodysenteriae in swine.
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Affiliation(s)
- S C Smith
- Department of Applied Biology, Royal Melbourne Institute of Technology, Victoria, Australia
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