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West NT, Harmon BE, Rawlett KE, Short SJ, Spanier AJ, Mathews S, Kimble K, McGehee C, Ratliff ML, Puett RC. Perceptions of mindfulness practices as a support for individuals managing caregiving responsibilities and chronic disease: A qualitative study. Chronic Illn 2024; 20:159-172. [PMID: 37077138 DOI: 10.1177/17423953231170401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
OBJECTIVES Explore the lived experience of individuals managing and/or caregiving for someone with a chronic disease and their perceptions of developing a mindfulness program for stress reduction. METHODS Sixteen participants with chronic disease and/or caregivers participated. Participants completed eligibility screening, demographic questionnaires, and semi-structured interviews (30-60 min each) online or by phone. Interviews (n = 16) were audio recorded, transcribed, and analyzed using thematic analysis and NVivo® 12. Survey data were analyzed using SPSS® 28. RESULTS Four themes emerged: (a) Chronic disease management and stress-perspectives on life's stressors; (b) Stress reduction techniques/perceptions of mindfulness-knowledge and implementation of stress reduction practices and familiarity with mindfulness; (c) Mindfulness program acceptability, barriers, and facilitators-interest, barriers, and facilitators to attending; (d) Mindfulness program structure-logistics to increase access and appeal to diverse audiences. DISCUSSION Mindfulness has the potential for addressing the complexities of stress associated with disease management. Targeting mindfulness programs for populations with chronic disease management and caregiving responsibilities should include: Consideration of group formats with participation limited to this population, structuring programs to overcome barriers (i.e., culturally appropriate location), and equipping members of the community being served as instructors to ensure culturally relevant instruction.
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Affiliation(s)
- Nathan T West
- Institute of Social and Economic Research, University of Alaska Anchorage, Anchorage, AK, USA
| | - Brook E Harmon
- Department of Nutrition and Health Care Management, Beaver College of Health Sciences, Appalachian State University, Boone, NC, USA
| | - Kristen E Rawlett
- Department of Family and Community Health, School of Nursing, University of Maryland, Baltimore, MD, USA
| | - Sarah J Short
- Department of Educational Psychology, University of Wisconsin, Madison, WI, USA
- Center for Healthy Minds, University of Wisconsin, Madison, WI, USA
| | - Adam J Spanier
- Department of Pediatrics, Division of General Pediatrics, School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Shifali Mathews
- Maryland Institute for Applied Environmental Health, School of Public Health, University of Maryland, College Park, MD, USA
| | | | - Chad McGehee
- Center for Healthy Minds, University of Wisconsin, Madison, WI, USA
- Department of Athletics, University of Wisconsin, Madison, WI, USA
| | - Macy L Ratliff
- Center for Healthy Minds, University of Wisconsin, Madison, WI, USA
| | - Robin C Puett
- Maryland Institute for Applied Environmental Health, School of Public Health, University of Maryland, College Park, MD, USA
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Moloney K, Byrne T, Mathews S, Foran M, Conroy B, Molamphy A, Murphy N, Dillon A, Doyle K, Cunningham C, Romero-Ortuno R. 82 THE IMPACT OF THE COVID-19 PANDEMIC ON THE ACTIVITY OF A RAPID-ACCESS GERIATRIC DAY HOSPITAL SERVICE. Age Ageing 2022. [PMCID: PMC9620317 DOI: 10.1093/ageing/afac218.067] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background In the 1970s, Jack Flanagan developed the first Geriatric Day Hospital (GDH) in Ireland. Since, the GDH model of care has evolved to accommodate for the growing demands of our ageing population. Before the COVID-19 pandemic, the operational scope of our GDH was extended to allow for the rapid medical and multidisciplinary assessment and follow-up of older patients. During the pandemic, the GDH did not suspend operations and remained open as a COVID-negative ambulatory pathway. We evaluated the activity of this GDH service. Methods Retrospective Service Evaluation Approval was granted by our Research & Innovation Office (Reference: 7419). Pseudonymised data corresponding to all GDH attendances between January 2017 and December 2021 were retrieved from the hospital electronic records. Yearly trends in proportions were tested with the Chi-square for trend statistic. Trends in monthly attendances were assessed via Statistical Process Control (SPC) charts with three-sigma limits. Statistical significance was set at p<0.05. Results There were 27,278 attendances of patients aged 65 and over to the GDH over the 5-year period (6,362, 5,978, 6,115, 4,306, and 4,517, respectively). Mean age was 82 every year. Of the 7,813 new episodes, yearly proportions referred directly by primary care teams were 10.4%, 29.5%, 38.6%, 24.5%, and 16.3% (p<0.001). SPC charts showed that Apr-May 2020 and Jan-Feb 2021 had significantly lower numbers of review attendances (50-59 and 146-142, respectively, average 324 p/m). However, new appointments did not significantly decline (average 130 p/m). Of the 7,813 new episodes, 2,595 (33.2%) were seen by Physiotherapy, and 1,860 (23.8%) by Occupational Therapy. Conclusion Our GDH saw a sustained number of new attendances and demonstrated increased community availability during the unprecedented COVID-19 crisis, especially during the first wave of the pandemic when hospital access was most affected. A rapid access GDH model can facilitate integrated care at times of crisis to promote ageing in place.
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Affiliation(s)
- K Moloney
- St. James's Hospital , Dublin, Ireland
| | - T Byrne
- St. James's Hospital , Dublin, Ireland
| | - S Mathews
- St. James's Hospital , Dublin, Ireland
| | - M Foran
- St. James's Hospital , Dublin, Ireland
| | - B Conroy
- St. James's Hospital , Dublin, Ireland
| | | | - N Murphy
- St. James's Hospital , Dublin, Ireland
| | - A Dillon
- St. James's Hospital , Dublin, Ireland
| | - K Doyle
- St. James's Hospital , Dublin, Ireland
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Patel D, Mathews S, van Unen V, Chan J, Al-Hammadi N, Borowitz D, Gelfond D, Sellers Z. 206 Investigating colonic pH in cystic fibrosis: Wireless motility capsule to single-cell sequencing. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)00896-7] [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: 11/07/2022]
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Prakasan A, Krishna J, Kumar A, Mathews S, Sambasivan S, Joseph J, James F. 22P A comparison of new ESGO-ESTRO-ESP endometrial risk classification with previous classification in predicting outcome. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.040] [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: 11/01/2022] Open
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Adams N, Dhimal M, Mathews S, Iyer V, Murtugudde R, Liang XZ, Haider M, Cruz-Cano R, Thu DTA, Hashim JH, Gao C, Wang YC, Sapkota A. El Niño Southern Oscillation, monsoon anomaly, and childhood diarrheal disease morbidity in Nepal. PNAS Nexus 2022; 1:pgac032. [PMID: 36713319 PMCID: PMC9802392 DOI: 10.1093/pnasnexus/pgac032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/02/2022] [Accepted: 03/25/2022] [Indexed: 02/01/2023]
Abstract
Climate change is adversely impacting the burden of diarrheal diseases. Despite significant reduction in global prevalence, diarrheal disease remains a leading cause of morbidity and mortality among young children in low- and middle-income countries. Previous studies have shown that diarrheal disease is associated with meteorological conditions but the role of large-scale climate phenomena such as El Niño-Southern Oscillation (ENSO) and monsoon anomaly is less understood. We obtained 13 years (2002-2014) of diarrheal disease data from Nepal and investigated how the disease rate is associated with phases of ENSO (El Niño, La Niña, vs. ENSO neutral) monsoon rainfall anomaly (below normal, above normal, vs. normal), and changes in timing of monsoon onset, and withdrawal (early, late, vs. normal). Monsoon season was associated with a 21% increase in diarrheal disease rates (Incident Rate Ratios [IRR]: 1.21; 95% CI: 1.16-1.27). El Niño was associated with an 8% reduction in risk while the La Niña was associated with a 32% increase in under-5 diarrheal disease rates. Likewise, higher-than-normal monsoon rainfall was associated with increased rates of diarrheal disease, with considerably higher rates observed in the mountain region (IRR 1.51, 95% CI: 1.19-1.92). Our findings suggest that under-5 diarrheal disease burden in Nepal is significantly influenced by ENSO and changes in seasonal monsoon dynamics. Since both ENSO phases and monsoon can be predicted with considerably longer lead time compared to weather, our findings will pave the way for the development of more effective early warning systems for climate sensitive infectious diseases.
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Affiliation(s)
- Nicholas Adams
- Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, College Park, MD 20742, USA
| | - Meghnath Dhimal
- Health Research Section, Nepal Health Research Council, Kathmandu 44600, Nepal
| | - Shifali Mathews
- Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, College Park, MD 20742, USA
| | - Veena Iyer
- Indian Institute of Public Health Gandhinagar (IIPHG), Gandhinagar 382042, Gujrat, India
| | - Raghu Murtugudde
- Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD 20742, USA
| | - Xin-Zhong Liang
- Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD 20742, USA
| | - Muhiuddin Haider
- Maryland Institute for Applied Environmental Health, University of Maryland School of Public Health, College Park, MD 20742, USA
| | - Raul Cruz-Cano
- Department of Epidemiology and Biostatistics, University of Maryland School of Public Health, College Park, MD 20742, USA
| | - Dang Thi Anh Thu
- Institute for Community Health Research, Hue University of Medicine and Pharmacy, Hue City 52000, Vietnam
| | - Jamal Hisham Hashim
- Department of Health Sciences, University Selangor Shah Alam Campus, Selangor 40000, Malaysia
| | - Chuansi Gao
- Division of Ergonomics and Aerosol Technology, Faculty of Engineering, Lund University, Lund 223 62, Sweden
| | - Yu-Chun Wang
- Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan City 320314, Taiwan
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Greenfield L, Mathews S, Toukhsati SR. Anhedonia and anergia predict mortality in older Australians living in residential aged care. Aging Ment Health 2022; 26:614-622. [PMID: 33459050 DOI: 10.1080/13607863.2021.1872491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES Depression is common in older adults and is linked to morbidity and mortality. The aim of this study was to investigate whether specific symptoms of depression (dysphoria, anhedonia and anergia) predicted mortality in older Australian Aged Care residents. METHODS Eighty older adults (M = 83.16 ± 7.14) without cognitive impairment residing in 14 Residential Aged Care facilities located in Melbourne, Australia, completed the 15-item Geriatric Depression Scale-Short Form (GDS-15) and the Standardized Mini Mental State Examination. Residential Aged Care facilities provided the primary end-point of all-cause mortality at follow-up (M = 5.4 years ± 0.1). RESULTS Univariate Kaplan-Meier survival curves and Cox Proportional Hazards regression analyses were used to evaluate whether symptoms of depression predicted all-cause mortality, with known prognostic factors controlled. The results indicated that anhedonia (Hazard Ratio = 2.931 [95% CI 1.278-6.722], p = .011) and anergia (Hazard Ratio = 2.783 [95% CI 1.065-7.276], p = .037) were associated with almost a threefold increased risk of mortality in older adults living in RAC in adjusted analyses. Dysphoria did not predict mortality. CONCLUSIONS These findings advance understanding of the mortality risks of anhedonia and anergia in an understudied population. Symptoms of anhedonia and anergia should be targeted for screening in older adults living in Aged Care to increase the detection and potential for referral to treatment for depressive presentation.
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Affiliation(s)
- L Greenfield
- Department of Cardiology, Austin Health, Heidelberg, VIC, Australia.,The Cairnmillar Institute, VIC, Australia
| | - S Mathews
- Department of Cardiology, Austin Health, Heidelberg, VIC, Australia
| | - S R Toukhsati
- Department of Cardiology, Austin Health, Heidelberg, VIC, Australia.,School of Science, Psychology and Sport, Federation University Australia, Berwick, VIC, Australia.,Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, VIC, Australia
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Gualtieri T, Ferrari M, Taboni S, Chan H, Townson J, Mattavelli D, Sahovaler A, Eu D, Dey K, Mathews S, Re F, Bernardi S, Borsani E, Viswanathan S, Nicolai P, Sartore L, Russo D, Gilbert R, Irish J. 3D-mapping of mesenchymal stem cells growth on bioengineered scaffolds for maxillofacial skeleton regeneration: a preclinical, in vitro study. Cytotherapy 2021. [DOI: 10.1016/s146532492100517x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Nair L, Krishna KJ, Kumar A, Mathews S, Joseph J, James F. 208P Prognostic factors and outcomes of non-seminomatous germ cell tumours of testis: Experience from a tertiary cancer centre in India. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.220] [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] Open
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Smith J, Stewart MG, Foggin E, Mathews S, Harris J, Thomas P, Cooney A, Stocker CJ. Assessing the benefits and usefulness of Schwartz Centre rounds in second-year medical students using clinical educator-facilitated group work session: not just "a facilitated moan"! BMC Med Educ 2020; 20:271. [PMID: 32807145 PMCID: PMC7433116 DOI: 10.1186/s12909-020-02199-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND An experiential curriculum exposing medical students to the clinic early has many benefits but comes with the emotional stress this environment engenders. Schwartz rounds (SR) are an effective means to combat emotional stress and increasingly used in UK and USA hospitals. Recent studies show that the SR format may also provide benefits for medical students. This study aimed to investigate whether the guidance of SR in second year medical students provides the same benefits as to healthcare professionals. METHODS SR assessment involved 83 s year MBChB students in facilitated groupwork sessions. Topics discussed were "change and resilience" and "duty of candour". Students completed a Likert Scale questionnaire evaluating outcomes proffered by the Point of Care Foundation in collaboration with the Schwartz Foundation, with freeform feedback. RESULTS There was an 86% completion rate with 25% providing written feedback. Participants were more likely to agree than disagree that SR were beneficial. SR effectiveness in enhancing students' working relationship awareness and skills was strongly correlated with understanding the purpose of, and engagement with, the SR (P < 0.001). Similarly, engagement with the SR was strongly correlated with self-reporting of enhanced patient-centredness (P < 0.001). Freeform feedback could be grouped into five themes that revolved around understanding of the SR and engagement with the process. Many positive comments regarded the SR as a forum not only to "learn experientially" but to so in a "safe environment". Many negative comments stemmed from students not seeing any benefits of engagement with the SR, in that sharing experiences was "unbeneficial", "empathy is inherent and not learnt", or that sharing emotional problems is simply "moaning". CONCLUSION SRs are an effective way of fostering empathy and understanding towards patients and colleagues. However, for the students to benefit fully from the SR it is necessary for them to engage and understand the process. Therefore, for the successful implementation of SR into pre-clinical medical education, it is important to help students realise that SR are not merely a "facilitated whinge".
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Affiliation(s)
- J. Smith
- Medical School, University of Buckingham, Hunter Street, Buckingham, MK18 1EG UK
| | - M. G. Stewart
- Medical School, University of Buckingham, Hunter Street, Buckingham, MK18 1EG UK
| | - E. Foggin
- Medical School, University of Buckingham, Hunter Street, Buckingham, MK18 1EG UK
| | - S. Mathews
- Medical School, University of Buckingham, Hunter Street, Buckingham, MK18 1EG UK
| | - J. Harris
- Medical School, University of Buckingham, Hunter Street, Buckingham, MK18 1EG UK
| | - P. Thomas
- Medical School, University of Buckingham, Hunter Street, Buckingham, MK18 1EG UK
| | - A. Cooney
- Medical School, University of Buckingham, Hunter Street, Buckingham, MK18 1EG UK
| | - C. J. Stocker
- Medical School, University of Buckingham, Hunter Street, Buckingham, MK18 1EG UK
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Pandian V, Boisen S, Mathews S, Brenner MJ. Speech and Safety in Tracheostomy Patients Receiving Mechanical Ventilation: A Systematic Review. Am J Crit Care 2019; 28:441-450. [PMID: 31676519 DOI: 10.4037/ajcc2019892] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To synthesize evidence of the safety and effectiveness of phonation in patients with fenestrated tracheostomy tubes. METHODS PubMed, CINAHL, Scopus, Cochrane, and Web of Science databases were searched. The research question was, "Are fenestrated tracheostomy tubes a safe and effective option to facilitate early phonation in patients undergoing tracheostomy?" Studies of fenestrated tracheostomy tubes were assessed for risk of bias and quality of evidence. Data were abstracted, cross-checked for accuracy, and synthesized. RESULTS Of the 160 studies identified, 13 met inclusion criteria, including 6 clinical studies (104 patients), 6 case reports (13 patients), and 1 nationwide clinician survey. The primary indications for a tracheostomy were chronic ventilator dependence (83%) and airway protection (17%). Indications for fenestrated tracheostomy included inaudible phonation and poor voice intelligibility. Patients with fenestrated tubes achieved robust voice outcomes. Complications included granulation tissue (6 patients [5%]), malpositioning (1 patient [0.9%]), decreased oxygen saturation (3 patients [2.6%]), increased blood pressure (1 patient [0.9%]), increased peak pressures (2 patients [1.7%]), and air leakage (1 patient [0.9%]); subcutaneous emphysema also occurred frequently. Patient-reported symptoms included shortness of breath (4 patients [3.4%]), anxiety (3 patients [2.6%]), and chest discomfort (1 patient [0.9%]). CONCLUSIONS Fenestrated devices afford benefits for speech and decannulation but carry risks of granulation, aberrant airflow, and acclimation challenges. Findings highlight the need for continued innovation, education, and quality improvement around the use of fenestrated devices.
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Affiliation(s)
- Vinciya Pandian
- Vinciya Pandian is an associate professor, Johns Hopkins School of Nursing, Baltimore, Maryland. Sarah Boisen is an intensive care unit nurse, The Johns Hopkins Hospital, Baltimore, Maryland. Shifali Mathews is a BS student and research assistant, Johns Hopkins School of Nursing. Michael J. Brenner is an associate professor, Department of Otolaryngology–Head & Neck Surgery, Michigan Medicine–University of Michigan, Ann Arbor, Michigan
| | - Sarah Boisen
- Vinciya Pandian is an associate professor, Johns Hopkins School of Nursing, Baltimore, Maryland. Sarah Boisen is an intensive care unit nurse, The Johns Hopkins Hospital, Baltimore, Maryland. Shifali Mathews is a BS student and research assistant, Johns Hopkins School of Nursing. Michael J. Brenner is an associate professor, Department of Otolaryngology–Head & Neck Surgery, Michigan Medicine–University of Michigan, Ann Arbor, Michigan
| | - Shifali Mathews
- Vinciya Pandian is an associate professor, Johns Hopkins School of Nursing, Baltimore, Maryland. Sarah Boisen is an intensive care unit nurse, The Johns Hopkins Hospital, Baltimore, Maryland. Shifali Mathews is a BS student and research assistant, Johns Hopkins School of Nursing. Michael J. Brenner is an associate professor, Department of Otolaryngology–Head & Neck Surgery, Michigan Medicine–University of Michigan, Ann Arbor, Michigan
| | - Michael J. Brenner
- Vinciya Pandian is an associate professor, Johns Hopkins School of Nursing, Baltimore, Maryland. Sarah Boisen is an intensive care unit nurse, The Johns Hopkins Hospital, Baltimore, Maryland. Shifali Mathews is a BS student and research assistant, Johns Hopkins School of Nursing. Michael J. Brenner is an associate professor, Department of Otolaryngology–Head & Neck Surgery, Michigan Medicine–University of Michigan, Ann Arbor, Michigan
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Toukhsati SR, Mathews S, Sheed A, Freijah I, Moncur L, Cropper P, Ha FJ, Hare DL. Confirming a beneficial effect of the six-minute walk test on exercise confidence in patients with heart failure. Eur J Cardiovasc Nurs 2019; 19:165-171. [DOI: 10.1177/1474515119876784] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 11/16/2022]
Abstract
Background: Low confidence to exercise is a barrier to engaging in exercise in heart failure patients. Participating in low to moderate intensity exercise, such as the six-minute walk test, may increase exercise confidence. Aim: To compare the effects of a six-minute walk test with an educational control condition on exercise confidence in heart failure patients. Methods: This was a prospective, quasi-experimental design whereby consecutive adult patients attending an out-patient heart failure clinic completed the Exercise Confidence Scale prior to and following involvement in the six-minute walk test or an educational control condition. Results: Using a matched pairs, mixed model design ( n=60; 87% male; Mage=58.87±13.16), we identified a significantly greater improvement in Total exercise confidence ( F(1,54)=4.63, p=0.036, partial η2=0.079) and Running confidence ( F(1,57)=4.21, p=0. 045, partial η2=0.069) following the six-minute walk test compared to the educational control condition. These benefits were also observed after adjustment for age, gender, functional class and depression. Conclusion: Heart failure patients who completed a six-minute walk test reported greater improvement in exercise confidence than those who read an educational booklet for 10 min. The findings suggest that the six-minute walk test may be used as a clinical tool to improve exercise confidence. Future research should test these results under randomized conditions and examine whether improvements in exercise confidence translate to greater engagement in exercise behavior.
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Affiliation(s)
- SR Toukhsati
- Psychology, School of Health and Life Sciences, Federation University Australia, Australia
- Department of Cardiology, Austin Health, Australia
| | - S Mathews
- Department of Cardiology, Austin Health, Australia
- Faculty of Health, Arts and Design, Swinburne University of Technology, Australia
| | - A Sheed
- Department of Cardiology, Austin Health, Australia
| | - I Freijah
- Department of Cardiology, Austin Health, Australia
- Department of Psychiatry, University of Melbourne, Australia
| | - L Moncur
- Department of Cardiology, Austin Health, Australia
| | - P Cropper
- Department of Cardiology, Austin Health, Australia
| | - FJ Ha
- Department of Cardiology, Austin Health, Australia
- Faculty of Health, Arts and Design, Swinburne University of Technology, Australia
| | - DL Hare
- Psychology, School of Health and Life Sciences, Federation University Australia, Australia
- Department of Cardiology, Austin Health, Australia
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Pandian V, Boisen SE, Mathews S, Cole T. Are Fenestrated Tracheostomy Tubes Still Valuable? Am J Speech Lang Pathol 2019; 28:1019-1028. [PMID: 31318610 PMCID: PMC6802915 DOI: 10.1044/2019_ajslp-18-0187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 01/31/2019] [Accepted: 03/29/2019] [Indexed: 06/10/2023]
Abstract
Purpose The purpose of this clinical focus article is to describe the frequency, indications, and outcomes of fenestrated tracheostomy tube use in a large academic institution. Method A retrospective chart review was conducted to evaluate the use of fenestrated tracheostomy tubes between 2007 and 2017. Patients were included in the study if they were ≥ 18 years of age and received a fenestrated tracheostomy tube in the recent 10-year period. Results Of 2,000 patients who received a tracheostomy, 15 patients had a fenestrated tracheostomy tube; however, only 5 patients received a fenestrated tracheostomy tube at the study institution. The primary reason why the 15 patients received a tracheostomy was chronic respiratory failure (73%); other reasons included airway obstruction (20%) and airway protection (7%). Thirteen (87%) patients received a fenestrated tracheostomy tube for phonation purposes. The remaining 2 patients received it as a step to weaning. Of the 13 patients who received a fenestrated tracheostomy tube for phonation, only 1 patient was not able to phonate. Nine (60%) patients developed some type of complications: granulation only, 2 (13.3%); granulation and tracheomalacia, 2 (13.3%); granulation and stenosis, 4 (26.7%); and granulation, tracheomalacia, and stenosis, 1 (6.7%). Conclusions Fenestrated tracheostomy tubes may assist with phonation in patients who cannot tolerate a 1-way speaking valve; however, the risk of developing granulation tissue, tracheomalacia, and tracheal stenosis exists. Health care providers should be educated on the safe use of a fenestrated tracheostomy tube and other options available to improve phonation while ensuring patient safety.
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Hill B, Switchenko J, Martin P, Churnetski M, Sawalha Y, Goyal S, Shanmugasundaram K, Calzada O, Kolla B, Bachanova V, Gerson J, Barta S, Maldonado E, Gordon M, Danilov A, Grover N, Mathews S, Burkart M, Karmali R, Ghosh N, Park S, Epperla N, Bond D, Badar T, Blum K, Guo J, Hamadani M, Fenske T, Malecek M, Maddocks K, Flowers C, Kahl B, Cohen J. MAINTENANCE RITUXIMAB IS ASSOCIATED WITH IMPROVED OVERALL SURVIVAL IN MANTLE CELL LYMPHOMA PATIENTS RESPONDING TO INDUCTION THERAPY WITH BENDAMUSTINE + RITUXIMAB (BR). Hematol Oncol 2019. [DOI: 10.1002/hon.75_2631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- B.T. Hill
- Hematology and Medical Oncology; Cleveland Clinic Taussig Cancer Institute; Cleveland United States
| | | | - P. Martin
- Hematology/Oncology; Weill Cornell Medical College; New York United States
| | - M.C. Churnetski
- Hematology and Medical Oncology; Emory University - Winship Cancer Institute; Atlanta United States
| | - Y. Sawalha
- Hematology and Medical Oncology; Cleveland Clinic Taussig Cancer Institute; Cleveland United States
| | - S. Goyal
- Biostatistics; Emory University; Atlanta United States
| | - K. Shanmugasundaram
- Hematology and Medical Oncology; Emory University - Winship Cancer Institute; Atlanta United States
| | - O. Calzada
- Hematology and Medical Oncology; Emory University - Winship Cancer Institute; Atlanta United States
| | - B. Kolla
- Hematology; Oncology,and Transplantation, University of Minnesota; Minneapolis United States
| | - V. Bachanova
- Hematology; Oncology,and Transplantation, University of Minnesota; Minneapolis United States
| | - J.N. Gerson
- Hematology/Oncology; Fox Chase Cancer Center; Philadelphia United States
| | - S.K. Barta
- Hematology/Oncology; Fox Chase Cancer Center; Philadelphia United States
| | - E. Maldonado
- Knight Cancer Institute; Oregon Health and Sciences University; Portland United States
| | - M. Gordon
- Knight Cancer Institute; Oregon Health and Sciences University; Portland United States
| | - A. Danilov
- Knight Cancer Institute; Oregon Health and Sciences University; Portland United States
| | - N.S. Grover
- Lineberger Cancer Institute; University of North Carolina; Chapel Hill United States
| | - S. Mathews
- Lineberger Cancer Institute; University of North Carolina; Chapel Hill United States
| | - M. Burkart
- Hematology; Northwestern University; Chicago United States
| | - R. Karmali
- Hematology; Northwestern University; Chicago United States
| | - N. Ghosh
- Hematology and Medical Oncology; Levine Cancer Institute; Charlotte United States
| | - S.I. Park
- Hematology and Medical Oncology; Levine Cancer Institute; Charlotte United States
| | - N. Epperla
- Hematology; The Ohio State University James Cancer Center; Columbus United States
| | - D.A. Bond
- Hematology; The Ohio State University James Cancer Center; Columbus United States
| | - T. Badar
- Hematology and Oncology; Medical College of Wisconsin; Milwaukee United States
| | - K.A. Blum
- Hematology and Medical Oncology; Emory University - Winship Cancer Institute; Atlanta United States
| | - J. Guo
- Hematology/Oncology; Weill Cornell Medical College; New York United States
| | - M. Hamadani
- Hematology and Oncology; Medical College of Wisconsin; Milwaukee United States
| | - T.S. Fenske
- Hematology and Oncology; Medical College of Wisconsin; Milwaukee United States
| | - M. Malecek
- Siteman Cancer Center; Washington University; St Louis United States
| | - K. Maddocks
- Hematology; The Ohio State University James Cancer Center; Columbus United States
| | - C.R. Flowers
- Hematology and Medical Oncology; Emory University - Winship Cancer Institute; Atlanta United States
| | - B.S. Kahl
- Siteman Cancer Center; Washington University; St Louis United States
| | - J.B. Cohen
- Hematology and Medical Oncology; Emory University - Winship Cancer Institute; Atlanta United States
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Bond D, Switchenko J, Maddocks K, Churnetski M, Goyal S, Shanmugasundaram K, Calzada O, Kolla B, Bachanova V, Gerson J, Barta S, Hill B, Salwaha Y, Martin P, Maldonado E, Gordon M, Danilov A, Grover N, Mathews S, Burkart M, Karmali R, Ghosh N, Park S, Epperla N, Badar T, Guo J, Hamadani M, Fenske T, Malecek M, Kahl B, Flowers C, Blum K, Cohen J. OUTCOMES FOR PATIENTS WITH MANTLE CELL LYMPHOMA EXPERIENCING FRONTLINE TREATMENT FAILURE: A MULTICENTER RETROSPECTIVE STUDY. Hematol Oncol 2019. [DOI: 10.1002/hon.77_2631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- D.A. Bond
- Division of Hematology; Ohio State University Comprehensive Cancer Center; Columbus United States
| | - J. Switchenko
- Department of Biostatistics and Bioinformatics; Rollins School of Public Health, Emory University; Atlanta United States
| | - K. Maddocks
- Division of Hematology; Ohio State University Comprehensive Cancer Center; Columbus United States
| | - M. Churnetski
- Department of Hematology and Medical Oncology; Winship Cancer Institute; Atlanta United States
| | - S. Goyal
- Department of Biostatistics and Bioinformatics; Rollins School of Public Health, Emory University; Atlanta United States
| | - K. Shanmugasundaram
- Department of Internal Medicine; Emory University School of Medicine; Atlanta United States
| | - O. Calzada
- Department of Hematology and Medical Oncology; Winship Cancer Institute; Atlanta United States
| | - B. Kolla
- Department of Hematology; University of Minnesota; Minneapolis United States
| | - V. Bachanova
- Department of Hematology; University of Minnesota; Minneapolis United States
| | - J. Gerson
- Hematology; Abramson Cancer Center, University of Pennsylvania; Pennsylvania United States
| | - S. Barta
- Hematology; Abramson Cancer Center, University of Pennsylvania; Pennsylvania United States
| | - B. Hill
- Hematology and Oncology; Cleveland Clinic Taussig Cancer Institute; Cleveland United States
| | - Y. Salwaha
- Hematology and Oncology; Cleveland Clinic Taussig Cancer Institute; Cleveland United States
| | - P. Martin
- Department of Medicine; Weil Cornell Medicine; New York United States
| | - E. Maldonado
- Hematology and Oncology; Oregon Health and Science University, Knight Cancer Institute; Portland United States
| | - M. Gordon
- Hematology and Oncology; Oregon Health and Science University, Knight Cancer Institute; Portland United States
| | - A. Danilov
- Hematology and Oncology; Oregon Health and Science University, Knight Cancer Institute; Portland United States
| | - N. Grover
- Hematology and Oncology; University of North Carolina Lineberger Comprehensive Cancer Center; Chapel Hill United States
| | - S. Mathews
- Hematology and Oncology; University of North Carolina Lineberger Comprehensive Cancer Center; Chapel Hill United States
| | - M. Burkart
- Hematology and Oncology; Northwestern University, Feinberg School of Medicine; Chicago United States
| | - R. Karmali
- Hematology and Oncology; Northwestern University, Feinberg School of Medicine; Chicago United States
| | - N. Ghosh
- Hematology and Oncology; Atrium Health; Charlotte United States
| | - S. Park
- Hematology and Oncology; Atrium Health; Charlotte United States
| | - N. Epperla
- Division of Hematology; Ohio State University Comprehensive Cancer Center; Columbus United States
| | - T. Badar
- Hematology and Oncology; Medical College of Wisconsin; Milwaukee United States
| | - J. Guo
- Department of Medicine; Weil Cornell Medicine; New York United States
| | - M. Hamadani
- Hematology and Oncology; Medical College of Wisconsin; Milwaukee United States
| | - T. Fenske
- Hematology and Oncology; Medical College of Wisconsin; Milwaukee United States
| | - M. Malecek
- Hematology and Oncology; Siteman Cancer Center, Washington University; St. Louis United States
| | - B. Kahl
- Hematology and Oncology; Siteman Cancer Center, Washington University; St. Louis United States
| | - C. Flowers
- Department of Hematology and Medical Oncology; Winship Cancer Institute; Atlanta United States
| | - K. Blum
- Department of Hematology and Medical Oncology; Winship Cancer Institute; Atlanta United States
| | - J. Cohen
- Department of Hematology and Medical Oncology; Winship Cancer Institute; Atlanta United States
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Nair P, Kumar A, Mathews S, Joseph J, Suchetha S, Krishna J, James F. Dysgerminoma ovary: Clinical features and treatment outcome. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy436.002] [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: 11/13/2022] Open
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Affiliation(s)
- J James
- Department of Neurology, Government Medical College Kozhikode, Njaralakatt House, Pottangadi Road, West Nadakkav, Calicut 673011, Kerala, India
| | - S Mathews
- Department of Internal Medicine, Government Medical College Kozhikode Njaralakatt House, Pottangadi Road, West Nadakkav, Calicut 673011, Kerala, India
| | - N K Thulaseedharan
- Department of Internal Medicine, Government Medical College Kozhikode Njaralakatt House, Pottangadi Road, West Nadakkav, Calicut 673011, Kerala, India
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Anjanappa M, Kumar A, Mathews S, Joseph J, Jagathnathkrishna KM, James FV. Testicular seminoma: Are clinical features and treatment outcomes any different in India? Indian J Cancer 2017; 54:385-387. [PMID: 29199728 DOI: 10.4103/ijc.ijc_100_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIM This study aims to identify clinical features, treatment outcomes, and prognostic factors for relapse and survival in patients with testicular seminoma. MATERIALS AND METHODS Retrospective analysis of all patients with pure seminoma treated at our center during over a decade (January 2005-December 2014) was carried out. Patient demographics, tumor characteristics, and treatment details and pattern of recurrence were recorded in a structured format, and disease-free survival and overall survival were calculated. RESULTS Sixty-three patients' case records were included in the analysis. Ten patients developed disease in the undescended testis. All patients underwent orchiectomy as the initial treatment procedure. Majority of the patients were Stage I (57.14%) followed by Stage II (39.6%). Among the patients with Stage I, 55.5% received adjuvant chemotherapy while 22.2% received adjuvant radiation and the rest opted for surveillance. The compliance for active surveillance was very poor. Among patients with Stage II disease, majority (80%) were treated with adjuvant chemotherapy and the rest with radiation. At a median follow-up of 49 months, there were four recurrences of which three were salvaged successfully, and one patient remained alive with disease. There were no disease-related deaths. CONCLUSIONS Testicular seminoma remains to be relatively low and majority of them presented with Stage I disease and single agent carboplatin appeared to be the preferred adjuvant treatment. Advanced disease patients were treated with etoposide and cisplatin/bleomycin, etoposide and cisplatin chemotherapy and the clinical outcome is comparable with the Western literature.
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Affiliation(s)
- M Anjanappa
- Division of Clinical Oncology, Genitourinary Clinic, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - A Kumar
- Division of Clinical Oncology, Genitourinary Clinic, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - S Mathews
- Division of Clinical Oncology, Genitourinary Clinic, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - J Joseph
- Division of Clinical Oncology, Genitourinary Clinic, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - K M Jagathnathkrishna
- Division of Statistics and Cancer Epidemiology, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
| | - F V James
- Division of Clinical Oncology, Genitourinary Clinic, Regional Cancer Centre, Thiruvananthapuram, Kerala, India
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Mathews S, Ngoma L, Gashe B, Mpuchane S. The Effect of Different Temperatures and Chemical Substances on Growth of Some Bacterial Species Isolated from Ice Cream and Ice Pop (Sorbates) Sold in Gaborone, Botswana. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/09735070.2013.11886464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- S. Mathews
- Department of Biological Sciences, School of Environmental and Health Sciences, Faculty of Agriculture, Science and Technology, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa
| | - L. Ngoma
- Department of Biological Sciences, School of Environmental and Health Sciences, Faculty of Agriculture, Science and Technology, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa
| | - B. Gashe
- Department of Biological Sciences, Faculty of Science, University of Botswana, 4775 Notwane Rd, Gaborone, Botswana Private Bag UB 0022 Gaborone, Botswana
| | - S. Mpuchane
- Department of Biological Sciences, Faculty of Science, University of Botswana, 4775 Notwane Rd, Gaborone, Botswana Private Bag UB 0022 Gaborone, Botswana
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Affiliation(s)
- S. Mathews
- Department of Biological Sciences, School of Environmental and Health Sciences, Faculty of Agriculture, Science and Technology, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa
| | - L. Ngoma
- Department of Biological Sciences, School of Environmental and Health Sciences, Faculty of Agriculture, Science and Technology, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa
| | - B. Gashe
- Department of Biological Sciences, Faculty of Science, University of Botswana, 4775 Notwane Rd. Gaborone, Botswana Private Bag UB 0022 Gaborone, Botswana
| | - S. Mpuchane
- Department of Biological Sciences, Faculty of Science, University of Botswana, 4775 Notwane Rd. Gaborone, Botswana Private Bag UB 0022 Gaborone, Botswana
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Iyer RV, Nasrin F, See E, Mathews S. Smoothing Splines on Unit Ball Domains with Application to Corneal Topography. IEEE Trans Med Imaging 2017; 36:518-526. [PMID: 27775513 DOI: 10.1109/tmi.2016.2618389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Optical coherence tomography (OCT) is a non-invasive imaging technique used to study and understand internal structures of biological tissues such as the anterior chamber of the human eye. An interesting problem is the reconstruction of the shape of the biological tissue from OCT images, that is not only a good fit of the data but also respects the smoothness properties observed in the images. A similar problem arises in Magnetic Resonance Imaging (MRI). We cast the problem as a penalized weighted least squares regression with a penalty on the magnitude of the second derivative (Laplacian) of the surface. We present a novel algorithm to construct the Kimeldorf-Wahba solution for unit ball domains. Our method unifies the ad-hoc approaches currently in the literature. Application of the theory to data from an anterior segment optical coherence tomographer is presented. A detailed comparison of the reconstructed surface using different approaches is presented.
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Rosen L, El Hachem L, Hoan K, Mathews S, Gretz HF. Laparoscopic Cornuostomy for the Removal of Essure Microinserts. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.679] [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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Mandelberger AH, Mathews S, Chuang L. Practice Changes in Power Morcellation Among Gynecologic-Oncologists Since 2014. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.012] [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: 11/24/2022]
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Mathews S, Barr Grzesh R, Rosen L, Weinberg A, Ascher-Walsh C. Competitive Laparoscopic Skills Training Among Obstetrics and Gynecology Residents. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.586] [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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Mathews S, Rosen L, D’Angelo D, Mudiraj S, Friedman F, Brodman M, Ascher-Walsh C. Predictors of Laparoscopic Virtual Reality Simulation Performance in Attending Obstetrician/Gynecologists to Establish Cut-Offs for Additional Training and Annual Testing. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.219] [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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Sequist L, Anderson I, Bauer T, Demars N, Felip E, Frost N, Harb W, Horn L, Huber R, Kudla A, Lee J, Mathews S, Mehra R, Nieva J, Perol M, Shepherd F, Spira A, Czibere A. A phase 2 study of seribantumab (MM-121) in combination with docetaxel or pemetrexed versus docetaxel or pemetrexed alone in patients with heregulin positive (HRG+), locally advanced or metastatic non-small cell lung cancer (NSCLC). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw383.96] [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: 11/15/2022] Open
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Affiliation(s)
- L El Hachem
- Minimally Invasive Gynecology and Gynecologic Oncology, Icahn School of Medicine at Mount Sinai, New York, New York; Minimally Invasive Gynecology and Gynecologic Oncology, White Plains Hospital Center, White Plains, New York
| | - S Mathews
- Minimally Invasive Gynecology and Gynecologic Oncology, Icahn School of Medicine at Mount Sinai, New York, New York; Minimally Invasive Gynecology and Gynecologic Oncology, White Plains Hospital Center, White Plains, New York
| | - E Pereira
- Minimally Invasive Gynecology and Gynecologic Oncology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - M Momeni
- Minimally Invasive Gynecology and Gynecologic Oncology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - K Friedman
- Minimally Invasive Gynecology and Gynecologic Oncology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - L C Chuang
- Minimally Invasive Gynecology and Gynecologic Oncology, Icahn School of Medicine at Mount Sinai, New York, New York; Minimally Invasive Gynecology and Gynecologic Oncology, White Plains Hospital Center, White Plains, New York
| | - H F Gretz
- Minimally Invasive Gynecology and Gynecologic Oncology, Icahn School of Medicine at Mount Sinai, New York, New York; Minimally Invasive Gynecology and Gynecologic Oncology, White Plains Hospital Center, White Plains, New York
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Mathews S, Friedman F, Weinberg A, Brodman M, Ascher-Walsh C. 47: The role of virtual reality simulation in the evaluation of laparoscopic skills in gynecology. Am J Obstet Gynecol 2016. [DOI: 10.1016/j.ajog.2016.01.078] [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: 10/22/2022]
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Mandelberger A, Mathews S, Andikyan V, Chuang L. Laparoscopic Removal of Streak Gonads in Turner Syndrome. J Minim Invasive Gynecol 2015; 22:S15. [DOI: 10.1016/j.jmig.2015.08.048] [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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Mathews S, Orbuch I, Orbuch L. Endometrioma Excision: Outcomes Using Consistent Technique. J Minim Invasive Gynecol 2014. [DOI: 10.1016/j.jmig.2014.08.445] [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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Brackhahn M, Mathews S. [Paediatric anaesthesia outside the operating theatre suite: the situation in Germany and Quebec]. Ann Fr Anesth Reanim 2013; 32:e217-e218. [PMID: 24216020 DOI: 10.1016/j.annfar.2013.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The authors describe the way pediatric anesthesia is organized outside the operating theatre in their country. In Germany, children can be anesthetized outside the operating theater in the hospital but also outside the hospital according to the concept of office-based anesthesia. National recommendations have been published and their revision is currently underway. In Quebec, pediatric anesthesia outside the operating theatre is well organized in order to ensure quality of care, patient's safety and efficiency of the system.
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Affiliation(s)
- M Brackhahn
- Zentrum für Kinder und Jugendliche, Kinder und Jugendkrankenhaus, Janusz-Korczak-Allee 12, 30173 Hannover, Allemagne.
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Abrahams N, Jewkes R, Mathews S. Depressive symptoms after a sexual assault among women: understanding victim-perpetrator relationships and the role of social perceptions. ACTA ACUST UNITED AC 2013; 16:288-93. [PMID: 24051569 DOI: 10.4314/ajpsy.v16i4.39] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 10/31/2013] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Although mental health impact of gender based violence has been documented for many decades, the impact of the socio-cultural dimensions and type of perpetrator on mental health outcomes has not been described outside of developed countries. We explore depression symptomatology four to six weeks post-rape in South Africa and examine whether this differs according to the circumstances of the rape. METHOD 140 participants recruited from public hospital services in the Eastern and Western Cape provinces were interviewed within two weeks after completing the post exposure prophylaxis (PEP) medication. A structured questionnaire was used to collect data on socio-demographic and sexual assault characteristics including perpetrator. Depressive symptomatology was measured using the Centre for Epidemiological Studies Depression Scale. RESULTS 84.3% (95% CI: 78.1-90.3) women were found to have high levels of depressive symptoms, but lower levels were found among women raped in circumstances in which there was a lesser likelihood of blame such as those raped by strangers rather than intimate partners (Odds Ratio: (OR) 0.28 (95% Confidence Intervals (CI): 0.11-0.69) and higher levels were associated with experiencing four or more side effects related to PEP medication (OR: 3.79: CI: 1.03-13.94). Receiving support and severe sexual assaults (involving weapons and multiple perpetrators) were not associated with depression. CONCLUSION The study does not support the general assumption that more violent rape causes more psychological harm. These results have important implications for individual treatment because it is more generally assumed that multiple perpetrator rapes, stranger rapes and those with weapons would result in more psychological trauma and thus more enduring symptoms. Our findings point to the importance of understanding the socio-cultural dimensions, including dynamics of blame and stigma, of rape on mental health sequelae.
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Affiliation(s)
- N Abrahams
- Gender & Health Research Unit, Medical Research Council, Tygerberg, Cape Town, South Africa
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Duodu Y, Mathews S, El Tawil S. Cerebral amyloid angiopathy (CAA), an often missed cause of intracranial bleeding. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Churchill SE, Holliday TW, Carlson KJ, Jashashvili T, Macias ME, Mathews S, Sparling TL, Schmid P, de Ruiter DJ, Berger LR. The Upper Limb of Australopithecus sediba. Science 2013; 340:1233477. [DOI: 10.1126/science.1233477] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Abrahams N, Mathews S, Jewkes R, Martin L, Lombard C. INTIMATE FEMICIDE IN SOUTH AFRICA: COMPARING TWO STUDIES 10 YEARS APART. Inj Prev 2012. [DOI: 10.1136/injuryprev-2012-040580d.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Affiliation(s)
- N S Nagalingum
- Arnold Arboretum of Harvard University, 22 Divinity Avenue, Cambridge, MA 02138, USA.
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Mathews S, Gupta PK, Bhonde R, Totey S. Chitosan enhances mineralization during osteoblast differentiation of human bone marrow-derived mesenchymal stem cells, by upregulating the associated genes. Cell Prolif 2011; 44:537-49. [PMID: 22011046 DOI: 10.1111/j.1365-2184.2011.00788.x] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVES Chitosan is widely used as a scaffold for bone tissue engineering. However, up-to-date, no previous detailed study has been conducted to elucidate any mechanism of osteogenesis by chitosan itself. Here, we have evaluated effects of chitosan-coated tissue culture plates on adhesion and osteoblast differentiation processes of human mesenchymal stem cells (hMSCs), isolated from adult bone marrow. MATERIALS AND METHODS Tissue culture plates coated with chitosan at different coating densities were used to evaluate the effects on hMSC adhesion and osteoblast differentiation. hMSCs were induced to differentiate into osteoblasts on the chitosan-coated plates and were evaluated using established techniques: alkaline phosphatase assay, demonstration of presence of calcium and real time PCR. RESULTS The cells adhered to plates of lower coating density of chitosan, but formed viable cell aggregates at higher coating density (100 μg/sq.cm). Coating density of 25 μg/sq.cm, supporting cell adhesion was chosen for osteoblast differentiation experiments. Differentiating hMSCs showed higher mineral deposition and calcium content on chitosan-coated plates. Chitosan upregulated genes associated with calcium binding and mineralization such as collagen type 1 alpha 1, integrin-binding sialoprotein, osteopontin, osteonectin and osteocalcin, significantly. CONCLUSIONS We demonstrate for the first time that chitosan enhanced mineralization by upregulating the associated genes. Thus, the study may help clinical situations promoting use of chitosan in bone mineralization, necessary for healing non-union fractures and more.
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Affiliation(s)
- S Mathews
- Manipal Institute of Regenerative Medicine, Manipal University, Domlur, Bangalore, India Kasiak Research Pvt. Ltd., Makers Chamber VI, Nariman Point, Mumbai, India
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Pachani AB, Reza A, Jadhav RV, Mathews S. A giant mesocolic lipoma--presenting as an irreducible sliding inguinal hernia: a case report of a rare clinical presentation. J Postgrad Med 2011; 57:253-5. [PMID: 21941071 DOI: 10.4103/0022-3859.85224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Abstract
BACKGROUND Thalassaemia major is a common and serious medical problem worldwide that is associated with a range of complications, including effects on multiple endocrine pathways. Minimizing or preventing comorbidities is important for these individuals who need life-long multidisciplinary care and treatment. However, there are limited overviews of the endocrine complications associated with this illness, nor any consensus regarding management guidelines. METHOD A retrospective cohort analysis of β-thalassaemia patients attending an ambulatory transfusion clinic at Royal Prince Alfred Hospital was conducted from June 2008. RESULTS All of our subjects (n=29) had at least one endocrinopathy present with 16 patients (55%) having three or more (≥3) endocrinopathies. Hypogonadism was the most prevalent followed by osteoporosis and growth failure (less than 3rd centile) with a frequency of 16/29 (55%), 14/29 (48%) and 10/29 (35%) patients respectively. Those with more endocrinopathies (≥3) had a longer duration of transfusion therapy when compared with those with fewer endocrinopathies. CONCLUSION A summary of our clinical guidelines, which have been used to monitor and manage these complications, is presented along with a discussion on the results and pathophysiology of the associated endocrinopathies.
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Affiliation(s)
- N J Perera
- Department of Endocrinology and Institute of Haematology, Royal Prince Alfred Hospital and Institute of Obesity Nutrition and Exercise, University of Sydney, Sydney, New South Wales, Australia.
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Breuleux M, Bachmann F, Pohlmann J, Mathews S, Burger K, Kellenberger L, Lane H. BAL27862: A Unique Microtubule Destabilizer Active Against Chemorefractory Breast Cancers. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-2093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: BAL27862, a novel, synthetic, small molecule, is a potent inhibitor of tubulin polymerization that induces cancer cell death. BAL27862 elicits a unique microtubule (MT) phenotype, distinct from paclitaxel, vinblastine and colchicine, has broad in vitro anti-proliferative activity against a diverse range of human tumor lines (low nM IC50s) and induces significant antitumor responses in a range of animal models of human cancer when administered orally (p.o.) or intravenously (i.v.). In this study, BAL27862 activity in a panel of experimental breast cancer models was assessed.Materials and Methods: Anti-proliferative activity was analyzed using a monolayer (crystal violet) or soft agar (clonogenic) assay. Effects on MT phenotypes were assessed by immunofluorescence for α-tubulin. Efficacy was assessed in mouse xenograft models bearing chemosensitive and multidrug resistant human breast tumors.Results: The unique BAL27862-associated MT phenotype in interphase cells consisted of a partially collapsed MT network without peripheral MTs. In dividing cells, tiny MT asters were found scattered within the nuclear region. Potent anti-proliferative activity was demonstrated against 8 breast cancer cell lines (crystal violet assay IC50 range: 6.5 – 22 nM for the SKBR3, MCF7, BT474, T47D, BT549, MDA-MB231, MDA-MB453 and MDA-MB468 lines), although one line (HCC1937) appeared relatively insensitive (IC50: >1000 nM). Interestingly, two breast cancer lines were sensitive to BAL27862 treatment in a clonogenic assay (IC50/IC70: MAXF 401 = 13/18 nM; MAXF MX1 = 22/46 nM), despite one being relatively resistant to paclitaxel treatment (MAXF 401 = 11/48 nM; MAXF MX1 = 127/>3500 nM). Moreover, using monolayer assays, BAL27862 activity was retained against five tumor lines overexpressing the Pgp efflux pump (including MT-3/ADR mammary adenocarcinoma cells), which were up to several thousand-fold resistant to paclitaxel and vinblastine. BAL27862 showed little activity against human stem cells or peripheral blood mononucleocytes.When administered p.o or i.v. to mice at well tolerated doses, BAL27862 treatment elicited statistically significant antitumor activity (p≤0.05) in three chemosensitive human breast tumor xenograft models (including MAXF 401, MaCa 4049 and MT-3); resulting in a final %T/C (ratio of mean tumor volume of treated and control group x 100) equivalent to that observed with comparator cytotoxics using MTD schedules (e.g. final %T/C in MT-3 model: 36% BAL27862, 35% paclitaxel, 50% doxorubicin). Strikingly, significant antitumor activity was maintained in the Pgp-overexpressing MT-3/ADR xenograft model, where paclitaxel and doxorubicin were ineffective (final %T/C: 37% BAL27862, 112% paclitaxel, 108% doxorubicin).Conclusions: BAL27862 is a new tubulin-interacting agent with an apparently novel mechanism of action. A potent antitumor activity in experimental models of breast cancer, including chemorefractory models, strongly support further development of BAL27862 as a novel breast cancer treatment modality with a possibility for both i.v. and p.o. administration.
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 2093.
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Affiliation(s)
| | | | | | | | - K. Burger
- 1Basilea Pharmaceutica AG, Switzerland
| | | | - H. Lane
- 1Basilea Pharmaceutica AG, Switzerland
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Proclemer A, Ghidina M, Bianco G, Facchin D, Rebellato L, Fioretti P, Gulizia M, Kalla M, Brooks V, Ellis GR, Bleasdale RA, Moro E, Marras E, Sciarra L, Marcon C, Allocca G, Delise P, Hasabnis S, Heaton W, Hiremagalur S, Burnam M, Greer S, Dahdah S, Mathews S, Oza A, Hero M, Benkemoun H. Poster session 3: Registries. Europace 2009. [DOI: 10.1093/europace/euq225] [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: 11/13/2022] Open
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Matzopoulos R, Myers JE, Bowman B, Mathews S. Interpersonal violence prevention: prioritising interventions. S Afr Med J 2008; 98:682, 684, 686 passim. [PMID: 19113045] [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: 05/27/2023] Open
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Murugavel KG, Mathews S, Jayanthi V, Shankar EM, Hari R, Surendran R, Vengatesan A, Raghuram K, Rajasambandam P, Murali A, Srinivas U, Palaniswamy KR, Pugazhendhi T, Thyagarajan SP. Alpha-fetoprotein as a tumor marker in hepatocellular carcinoma: investigations in south Indian subjects with hepatotropic virus and aflatoxin etiologies. Int J Infect Dis 2008; 12:e71-6. [PMID: 18658001 DOI: 10.1016/j.ijid.2008.04.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2007] [Revised: 04/30/2008] [Accepted: 04/30/2008] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVES The prevalence of hepatitis B virus (HBV) is reportedly the main cause of hepatocellular carcinoma (HCC) in India, where hepatitis C virus (HCV)-associated HCC is believed to be relatively less prevalent. We verified the usefulness of alpha-fetoprotein (AFP) as a tumor marker and analyzed the influence of viral etiology on AFP levels in HCC. METHODS Of a total of 1012 cases with liver disease, 202 were investigated for the presence of AFP (142 HCC cases, 30 cirrhosis cases, and 30 chronic liver disease (CLD) cases). In addition, serum samples from 30 healthy patients, 30 hepatitis B surface antigen (HBsAg) carriers, and 30 acute viral hepatitis cases were included as controls. AFP was quantitatively determined using a commercial ELISA (Quorum Diagnostics, Canada). Out of the 142 HCC cases screened for AFP, aflatoxin B1 (AFB1) detection was carried out in 38 HCC cases using an in-house immunoperoxidase test. RESULTS In HBV and HCV co-infected HCC cases, the AFP positivity was 85.7%. In HBV alone-associated HCC, the positivity was 62.9%, and 54.5% of AFB1 positive HCC cases showed AFP positivity. In HBV and HCV negative HCC cases, the positivity was 20.5%, and in HCV-associated HCC it was 17.6%. The HBV/HCV co-infected group and HBV alone positive HCC cases had significantly elevated levels of AFP. When AFP positivity was analyzed based on the marker profile of HBV, 89.7% of AFP positive cases were HBV-DNA positive. CONCLUSIONS The overall positivity pattern of AFP in HCC does indicate that higher levels of AFP are observed with hepatitis virus positivity, especially with HBV. Further studies must be carried out to correlate the serum levels of AFP with the size, number, and degree of differentiation of HCC nodules.
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Affiliation(s)
- Kailapuri G Murugavel
- Infectious Diseases Laboratory, YRG Centre for AIDS Research & Education, VHS Hospital Campus, Taramani, Chennai 600 113, India.
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Murugavel KG, Naranatt PP, Shankar EM, Mathews S, Raghuram K, Rajasambandam P, Jayanthi V, Surendran R, Murali A, Srinivas U, Palaniswamy KR, Srikumari D, Thyagarajan SP. Prevalence of aflatoxin B1 in liver biopsies of proven hepatocellular carcinoma in India determined by an in-house immunoperoxidase test. J Med Microbiol 2008; 56:1455-1459. [PMID: 17965344 DOI: 10.1099/jmm.0.47151-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the fourth leading cause of cancer-related death in the world. The incidence of HCC in India is reportedly low and varies from 0.2 to 1.9 %. Aflatoxins, secondary metabolites produced by Aspergillus flavus and Aspergillus parasiticus, are potent human carcinogens implicated in HCC. The prevalence of aflatoxin B1 (AFB1) as co-carcinogen was analysed using an in-house immunoperoxidase test in 31 liver biopsies and 7 liver-resection specimens from histopathologically proven HCC, and in 15 liver biopsies from cirrhosis patients (control group). Serum was tested for hepatitis B and C serological markers using commercial assays, and for AFB1 using an in-house ELISA with a sensitivity of approximately 1 ng ml(-1) for AFB1. In spite of positive AFB1 immunostaining in HCC cases, all serum specimens, from both HCC and the control groups, were AFB1-negative. There were 18 (58.1 %) HCC cases that revealed AFB1 in liver biopsies; 68.8 % (n=11) of non-B non-C hepatitis cases with HCC and 46.1 % (n=6) of the hepatitis B surface-antigen-positive subjects were positive for AFB1. Out of the two hepatitis B/hepatitis C virus co-infected cases, one was positive for AFB1. Of seven tumour-resection samples, six were positive for AFB1. Only one case revealed AFB1 in the non-tumour area of the resected material. Thus AFB1 staining was significantly associated with tumour tissue (P=0.03). Aflatoxins proved to have a significant association with HCC in this peninsular part of the subcontinent. The impact seems to be a cumulative process, as revealed by the AFB1 deposits in HCC liver tissue, even though the serum levels were undetectable.
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Affiliation(s)
- K G Murugavel
- Department of Microbiology, Faculty of Medicine, Dr ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai 600 113, India
| | - P P Naranatt
- Department of Microbiology, Faculty of Medicine, Dr ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai 600 113, India
| | - E M Shankar
- Department of Microbiology, Faculty of Medicine, Dr ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai 600 113, India
| | - S Mathews
- Medical Gastroenterology Unit of the Government General Hospital, Chennai 600 001, India
| | - K Raghuram
- Medical Gastroenterology Unit of the Government General Hospital, Chennai 600 001, India
| | - P Rajasambandam
- Medical Gastroenterology Unit of the Government General Hospital, Chennai 600 001, India
| | - V Jayanthi
- Medical and Surgical Gastroenterology Unit of the Government Stanley Medical College and Hospital, Chennai 600 001, India
| | - R Surendran
- Medical and Surgical Gastroenterology Unit of the Government Stanley Medical College and Hospital, Chennai 600 001, India
| | - A Murali
- Medical and Surgical Gastroenterology Unit of the Government Stanley Medical College and Hospital, Chennai 600 001, India
| | - U Srinivas
- Medical and Surgical Gastroenterology Unit of the Government Stanley Medical College and Hospital, Chennai 600 001, India
| | - K R Palaniswamy
- Medical and Surgical Gastroenterology Unit of the Government Stanley Medical College and Hospital, Chennai 600 001, India
| | - D Srikumari
- Government Kilpauk Medical College and Hospital, Chennai 600 029, India
| | - S P Thyagarajan
- Department of Microbiology, Faculty of Medicine, Dr ALM PG Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai 600 113, India
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Jackson WFM, Theologis TN, Gibbons CLMH, Mathews S, Kambouroglou G. Early management of pathological fractures in children. Injury 2007; 38:194-200. [PMID: 17054958 DOI: 10.1016/j.injury.2006.07.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [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] [Received: 04/10/2006] [Revised: 07/19/2006] [Accepted: 07/26/2006] [Indexed: 02/02/2023]
Abstract
The management of pathological fractures in children remains controversial. The indications for surgical treatment are unclear and the need for histological diagnosis before or after definitive treatment is not clearly defined. We reviewed retrospectively the records of all patients under the age of 16 years who presented over the past 7 years with a fracture as the first manifestation of bone pathology. There were 23 patients (16 boys and 7 girls) of an average age of 12 years and 2 months (range 4.1-15.8 years). There were nine cases of fracture through a simple bone cyst, five cases of fibrous dysplasia, two giant cell tumours, three aneurysmal bone cysts, one chondroblastoma, and three cases of Ewings sarcoma. After review of our cases we propose a simple algorithm for the safe early management and assessment of paediatric pathological fractures. We recommend that primary fixation of pathological fractures should be avoided until histological diagnosis is obtained. Most lesions should eventually be biopsied. However, if radiographic appearances are reassuringly benign, biopsy can be delayed until conservative fracture management is completed. Definitive treatment of benign lesions with protective intra medullary nailing or curettage and grafting can follow frozen section under the same anaesthetic.
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Affiliation(s)
- W F M Jackson
- Nuffield Orthopaedic Centre, Department of Orthopaedics, Windmill Road, Headington, Oxford, UK.
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Dore RK, Mathews S, Schechtman J, Surbeck W, Mandel D, Patel A, Zhou L, Peloso P. The immunogenicity, safety, and efficacy of etanercept liquid administered once weekly in patients with rheumatoid arthritis. Clin Exp Rheumatol 2007; 25:40-6. [PMID: 17417989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
OBJECTIVE To evaluate the immunogenicity, safety, and efficacy of 50 mg/mL liquid etanercept. METHODS In a multicenter, open-label study, adults with active rheumatoid arthritis (RA) received 50 mg/mL liquid etanercept subcutaneously once weekly for 24 weeks. Immunogenicity was assessed at baseline and weeks 24 and 28, safety at all study visits, and efficacy at baseline and weeks 12 and 24. RESULTS Of 222 treated patients, 88% completed the study; 81% were women; 84% were white; mean age was 53 years; mean RA duration was 10 years. Antibodies to etanercept, all non-neutralizing, were detected in 12 of 214 patients; 7 of the 12 were borderline positive (antibody titers <1:50). The presence of non-neutralizing anti-etanercept antibodies did not appear to affect clinical safety or efficacy. Few patients reported serious adverse events (6.3%), serious infections (2.3%), or withdrew because of adverse events (4.5%). Most adverse events were mild or moderate. The most common event, injection site reaction, occurred in 29.3% patients. At week 24, 63% of patients achieved an ACR20 response, 36% an ACR50 response, and 14% an ACR70 response. Similar responses were apparent by week 12. Week 24 mean improvement in the Health Assessment Questionnaire disability index scores was 0.6 points; improvement in the Short Form-36 Physical Component Score was 10.0 points. CONCLUSION The 50 mg/mL liquid etanercept formulation administered once weekly was well tolerated. The incidence of anti-etanercept antibodies, the nature and frequency of adverse events, and improvements in signs and symptoms of RA and patient physical function were similar to those in previous etanercept studies.
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Affiliation(s)
- R K Dore
- Robin K. Dore, MD, Inc, Anaheim, CA 92801, USA.
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Mathew PV, Mathews S, Bhat KG. Solar disinfection of drinking water. J Commun Dis 2005; 37:321-4. [PMID: 17278665] [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] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Affiliation(s)
- P V Mathew
- Department of Microbiology, Kasturba Medical College, Mangalore
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Theuri J, Phelps-Durr T, Mathews S, Birchler J. A comparative study of retrotransposons in the centromeric regions of A and B chromosomes of maize. Cytogenet Genome Res 2005; 110:203-8. [PMID: 16093673 DOI: 10.1159/000084953] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2003] [Accepted: 02/14/2004] [Indexed: 11/19/2022] Open
Abstract
Bacterial Artificial Chromosomes (BACs) derived from the B chromosome, based on homology with the B specific sequence, were subcloned and sequenced. Analysis of DNA sequence data indicated the presence of 23 common retroelements, as well as novel sequences of B chromosome origin. Generally, where the same retrotransposon type was observed in both A and B chromosomes, there were more copies per unit of sequence in the B centromeric region (the major site of B repeat) than in the A centromere, except for Huck-1. Based on previous estimates of the age of the major burst of transposition into the maize genome, the oldest retrotransposons (Ji-6 and Tekay, approximately 5.0 and 5.2 million years ago, respectively) were found in the B centromere region only, while the next two oldest (Huck-1 and Opie-1) were found in both the A and B sequences. Phylogenetic analysis of Opie retroelements from both A and B centromeres indicated that some of the B Opie centromeric sequences share a more recent common ancestor with A Opie retroelements than they do with other B Opie centromeric sequences. These results imply that the supernumerary maize B chromosome has coexisted with the A chromosomes during that period of transposition. They also support the hypothesis that the B chromosome had its origins from A chromosome elements, or that alternative origins, such as being donated to the maize genome in a wide species cross, preceded six million years ago, because the spectrum of retrotransposons in the two chromosomes is quite similar.
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Affiliation(s)
- J Theuri
- Division of Biological Sciences, University of Missouri, Columbia, MO 65211, USA
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Abstract
Photoreceptors are critical molecules that function at the interface between organism and environment. Plants use specific light signals to determine their place in time and space, allowing them to synchronize their growth, metabolism, and development to the environments in which they occur. Thus, innovation in light sensing mechanisms is expected to coincide with adaptation and diversification. Three studies involving the well-characterized phytochrome photoreceptor system in plants indicate that much work is yet needed to test this expectation. In early diverging flowering plants, episodic positive selection influenced the evolution of phytochrome A, but little of the functional data needed to link molecular adaptation with a change in gene function are available. In the model plant Arabidopsis thaliana, known functional differences between a recently duplicated gene pair remain difficult to characterize at the sequence level. In parasitic plants, patterns of development that in autotrophs are under the control of light signals are highly modified, suggesting that phytochromes and other photoreceptors function differently in nonphotosynthetic plants. Analyses of phytochrome A coding sequences indicate that they are evolving under relaxed constraints in nonphotosynthetic Orobanchaceae, consistent with the expectation of functional change. Further work is needed to determine which of the processes mediated by phyA may have been altered, a line of investigation that may improve our understanding of divergence points in downstream signaling pathways.
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Affiliation(s)
- S Mathews
- Arnold Arboretum, 22 Divinity Avenue, Harvard University, Cambridge, MA 02138, USA.
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