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Mehdipour A, Malouka S, Beauchamp M, Richardson J, Kuspinar A. Measurement properties of the usual and fast gait speed tests in community-dwelling older adults: a COSMIN-based systematic review. Age Ageing 2024; 53:afae055. [PMID: 38517125 PMCID: PMC10958613 DOI: 10.1093/ageing/afae055] [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] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Indexed: 03/23/2024] Open
Abstract
OBJECTIVE The gait speed test is one of the most widely used mobility assessments for older adults. We conducted a systematic review to evaluate and compare the measurement properties of the usual and fast gait speed tests in community-dwelling older adults. METHODS Three databases were searched: MEDLINE, EMBASE and CINAHL. Peer-reviewed articles evaluating the gait speed test's measurement properties or interpretability in community-dwelling older adults were included. The Consensus-based Standards for the selection of health Measurement Instruments guidelines were followed for data synthesis and quality assessment. RESULTS Ninety-five articles met our inclusion criteria, with 79 evaluating a measurement property and 16 reporting on interpretability. There was sufficient reliability for both tests, with intraclass correlation coefficients (ICC) generally ranging from 0.72 to 0.98, but overall quality of evidence was low. For convergent/discriminant validity, an overall sufficient rating with moderate quality of evidence was found for both tests. Concurrent validity of the usual gait speed test was sufficient (ICCs = 0.79-0.93 with longer distances) with moderate quality of evidence; however, there were insufficient results for the fast gait speed test (e.g. low agreement with longer distances) supported by high-quality studies. Responsiveness was only evaluated in three articles, with low quality of evidence. CONCLUSION Findings from this review demonstrated evidence in support of the reliability and validity of the usual and fast gait speed tests in community-dwelling older adults. However, future validation studies should employ rigorous methodology and evaluate the tests' responsiveness.
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Affiliation(s)
- Ava Mehdipour
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Selina Malouka
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Marla Beauchamp
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Julie Richardson
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Ayse Kuspinar
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
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Mehdipour A, Teshler L, Dal Bello-Haas V, Bouchard V, Kuspinar A. Translation of the Preference-Based Amyotrophic Lateral Sclerosis Scale into French. Can J Neurol Sci 2024:1-3. [PMID: 38374589 DOI: 10.1017/cjn.2024.18] [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] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The objective of this study was to translate the Preference-Based Amyotrophic Lateral Sclerosis Scale to French-Canadian. After the scale underwent forward and back translations, the expert committee examined the translated versions and found minor grammatical errors and suggested idioms to be changed to better represent French-Canadian language. Cognitive debriefing interviews were carried out to assess the pre-final version for clarity, and minor changes were made. Consensus from the expert committee and people with amyotrophic lateral sclerosis on the measure's clarity, word choice, and meaning were achieved, resulting in the final French version of the Preference-Based Amyotrophic Lateral Sclerosis Scale.
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Affiliation(s)
- Ava Mehdipour
- School of Rehabilitation Science, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Lizabeth Teshler
- Department of Arts and Science, McMaster University, Hamilton, ON, Canada
| | - Vanina Dal Bello-Haas
- School of Rehabilitation Science, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Vanessa Bouchard
- Hôpital de Chicoutimi, Centre intégré universitaire de santé et services sociaux du Saguenay-Lac-Saint-Jean, Chicoutimi, QC, Canada
| | - Ayse Kuspinar
- School of Rehabilitation Science, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
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Mehdipour A, Teshler L, Dal Bello-Haas V, Richardson J, Beauchamp M, Turnbull J, Chum M, Johnston W, O'Connell C, Luth W, Kuspinar A. Assessing the Measurement Properties of the Self-Administered Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R): A Rasch Analysis. Phys Ther 2023; 103:pzad109. [PMID: 37581600 DOI: 10.1093/ptj/pzad109] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 03/31/2023] [Accepted: 06/02/2023] [Indexed: 08/16/2023]
Abstract
OBJECTIVE The self-administered version of the Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R) is used to monitor function and disease progression in individuals with amyotrophic lateral sclerosis (ALS). However, the performance of the self-administered ALSFRS-R has not been assessed using Rasch Measurement Theory. Therefore, the purpose of this study was to examine the psychometric properties of the self-administered ALSFRS-R using Rasch analysis. METHODS Rasch analysis was performed on self-administered ALSFRS-R data from individuals with ALS across Canada. The following 6 aspects of Rasch analysis were examined using RUMM2030: fit via residuals and chi-square statistics, targeting via person-item threshold maps, dependency via item residual correlations, unidimensionality through principal components analysis of residuals, reliability via person separation index, and stability through differential item functioning analyses for sex, age, and language. RESULTS Analysis was performed on 122 participants (mean age: 52.9 years; 62.8% men). The overall scale demonstrated good fit, reliability, and stability; however, multidimensionality was found. To address this issue, items were divided into 3 subscales (bulbar, motor, and respiratory function), and Rasch analysis was performed for each subscale. The subscales demonstrated good fit, reliability, stability, and unidimensionality. However, there were still issues with item dependency for all subscale and targeting for bulbar and respiratory subscales. CONCLUSIONS The self-administered ALSFRS-R is reliable, internally valid, and stable across sex, age, and language subgroups; however, it is recommended that the ALSFRS-R be scored by subscale. Future studies can look at revising and/or adding items to tackle misfit, redundancy, and ceiling effects. IMPACT Self-administered measures are simple to administer and inexpensive. The self-administered ALSFRS-R was found to be psychometrically sound and can be used as a tool to monitor disease progression and function in ALS.
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Affiliation(s)
- Ava Mehdipour
- School of Rehabilitation Science, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Lizabeth Teshler
- School of Rehabilitation Science, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Vanina Dal Bello-Haas
- School of Rehabilitation Science, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Julie Richardson
- School of Rehabilitation Science, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Marla Beauchamp
- School of Rehabilitation Science, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - John Turnbull
- Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Marvin Chum
- Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Wendy Johnston
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Colleen O'Connell
- Stan Cassidy Centre for Rehabilitation, Dalhousie Medicine New Brunswick, Fredericton, New Brunswick, Canada
| | - Westerly Luth
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Ayse Kuspinar
- School of Rehabilitation Science, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
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Kuspinar A, Mehdipour A, Beauchamp MK, Hao Q, Cino E, Mikton C, Amuthavalli Thiyagarajan J, Diaz T, Raina P. Assessing the measurement properties of life-space mobility measures in community-dwelling older adults: a systematic review. Age Ageing 2023; 52:iv86-iv99. [PMID: 37902523 PMCID: PMC10615067 DOI: 10.1093/ageing/afad119] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Indexed: 10/31/2023] Open
Abstract
BACKGROUND Preserving and enhancing mobility is an important part of healthy ageing. Life-space mobility is a construct that captures actual mobility within the home and the community. The objective of this systematic review was to synthesise the measurement properties and interpretability of scores produced by life-space mobility measures in community-dwelling older adults. METHODS This systematic review followed Consensus-based Standards for the selection of health Measurement Instruments (COSMIN). Multiple databases were searched to identify potentially relevant articles. Data extraction and assessment of methodological quality was conducted by two independent reviewers. When possible, results were quantitatively pooled for each measurement property. If studies could not be combined quantitatively, then findings were summarised qualitatively using means and percentage of confirmed hypothesis. Synthesised results were assessed against the COSMIN criteria for good measurement properties. RESULTS A total of 21 full text articles were included in the review. The University of Alabama at Birmingham Study of Aging Life-Space Assessment (LSA) was the most evaluated life-space mobility measure. The LSA demonstrated content validity, internal consistency (Cronbach's alpha 0.80-0.92), reliability [intra-class correlation value 0.89 (95% confidence interval (CI): 0.80, 0.94)] and convergent validity with measures of physical function in community-dwelling older adults. CONCLUSION This systematic review summarised the measurement properties of life-space mobility measures in community-dwelling older adults following COSMIN guidelines. The LSA has been translated into multiple languages and has sufficient measurement properties for assessing life-space mobility among community-dwelling older adults.
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Affiliation(s)
- Ayse Kuspinar
- School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
- McMaster Institute for Research on Aging, McMaster University, Hamilton, Ontario, Canada
| | - Ava Mehdipour
- School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
| | - Marla K Beauchamp
- School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
- McMaster Institute for Research on Aging, McMaster University, Hamilton, Ontario, Canada
| | - Qiukui Hao
- School of Rehabilitation Science, McMaster University, Hamilton, Ontario, Canada
| | - Emily Cino
- Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Christopher Mikton
- Demographic Change and Healthy Aging Unit, Social Determinants of Health, World Health Organization, Geneva, Switzerland
| | | | - Theresa Diaz
- Epidemiology, Monitoring and Evaluation Unit, Department of Maternal, Newborn, Child and Adolescent Health and Ageing, WHO HQ, Geneva, Switzerland
| | - Parminder Raina
- McMaster Institute for Research on Aging, McMaster University, Hamilton, Ontario, Canada
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
- Labarge Centre for Mobility in Aging, McMaster, University, Hamilton, Ontario, Canada
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Zahir F, Hanman A, Yazdani N, La Rosa S, Sleik G, Sullivan B, Mehdipour A, Malouka S, Kuspinar A. Assessing the psychometric properties of quality of life measures in individuals with amyotrophic lateral sclerosis: a systematic review. Qual Life Res 2023:10.1007/s11136-023-03377-2. [PMID: 36881218 DOI: 10.1007/s11136-023-03377-2] [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] [Subscribe] [Scholar Register] [Accepted: 02/13/2023] [Indexed: 03/08/2023]
Abstract
PURPOSE Amyotrophic lateral sclerosis (ALS) is the most common motor neuron disease in adults. There are many patient-reported outcome measures (PROMs) for measuring quality of life (QoL) and health-related QoL (HRQoL) within this population; however, there is limited consensus regarding which are most valid, reliable, responsive, and interpretable. This systematic review assesses the psychometric properties and interpretability of QoL and HRQoL PROMs for individuals with ALS. METHODS This review was conducted following the Consensus-based Standards for the selection of health Measurement Instruments (COSMIN) methodology for systematic reviews of PROMs. MEDLINE, EMBASE, and CINAHL databases were searched. Studies were included if their aim was to evaluate one or more psychometric properties or the interpretability of QoL or HRQoL PROMs in individuals with ALS. RESULTS We screened 2713 abstracts, reviewed 60 full-text articles, and included 37 articles. Fifteen PROMs were evaluated including generic HRQoL (e.g., SF-36), ALS-specific HRQoL (e.g., ALSAQ-40), and individualized QoL (e.g., SEIQoL) measures. Evidence for internal consistency and test-retest reliability were acceptable. For convergent validity, 84% of hypotheses were met. For known-groups validity, outcomes were able to distinguish between healthy cohorts and other conditions. Responsiveness results ranged from low to high correlations with other measures over 3-24 months. Evidence for content validity, structural validity, measurement error, and divergent validity was limited. CONCLUSION This review identified evidence in support of the ALSAQ-40 or ALSAQ-5 for individuals with ALS. These findings can guide healthcare practitioners when selecting evidence-based QoL and HRQoL PROMs for patients and provide researchers with insight into gaps in the literature.
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Affiliation(s)
- Faryal Zahir
- School of Rehabilitation Science, McMaster University, 1400 Main St. W., IAHS, Hamilton, ON, L8S 1C7, Canada
| | - Alicia Hanman
- School of Rehabilitation Science, McMaster University, 1400 Main St. W., IAHS, Hamilton, ON, L8S 1C7, Canada
| | - Nazmehr Yazdani
- School of Rehabilitation Science, McMaster University, 1400 Main St. W., IAHS, Hamilton, ON, L8S 1C7, Canada
| | - Sabrina La Rosa
- School of Rehabilitation Science, McMaster University, 1400 Main St. W., IAHS, Hamilton, ON, L8S 1C7, Canada
| | - Gemma Sleik
- School of Rehabilitation Science, McMaster University, 1400 Main St. W., IAHS, Hamilton, ON, L8S 1C7, Canada
| | - Brooke Sullivan
- School of Rehabilitation Science, McMaster University, 1400 Main St. W., IAHS, Hamilton, ON, L8S 1C7, Canada
| | - Ava Mehdipour
- School of Rehabilitation Science, McMaster University, 1400 Main St. W., IAHS, Hamilton, ON, L8S 1C7, Canada
| | - Selina Malouka
- School of Rehabilitation Science, McMaster University, 1400 Main St. W., IAHS, Hamilton, ON, L8S 1C7, Canada
| | - Ayse Kuspinar
- School of Rehabilitation Science, McMaster University, 1400 Main St. W., IAHS, Hamilton, ON, L8S 1C7, Canada.
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Noguchi KS, Nguyen L, Mehdipour A, Wiley E, Saunders S, Moncion K, Reid JC, Bakaa N, Garcia Diaz L, Van Damme J, D'Amore C, Kumurenzi A, Lu Z, Knobl E, Beauchamp MK, Macedo LG, Vrkljan B, Moll SE, Carlesso LC, Letts LJ, Kho ME, Richardson J. Undertaking Rehabilitation Research During the COVID-19 Pandemic: Emergent Strategies From a Trainee-Faculty Workshop. Front Rehabil Sci 2022; 3:881606. [PMID: 36188942 PMCID: PMC9397764 DOI: 10.3389/fresc.2022.881606] [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] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 04/20/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND The COVID-19 pandemic has disrupted everyday rehabilitation research. Many academic institutions have halted in-person human research including rehabilitation sciences. Researchers are faced with several barriers to continuing their research programs. The purpose of this perspective article is to report the results of an interdisciplinary workshop aimed at understanding the challenges and corresponding strategies for conducting rehabilitation research during the COVID-19 pandemic. METHODS Twenty-five rehabilitation researchers (17 trainees and eight faculty) attended a 2-h facilitated online workshop in to discuss challenges and strategies they had experienced and employed to conduct rehabilitation research during the COVID-19 pandemic. RESULTS Rehabilitation researchers reported challenges with (1) pandemic protocol adjustments, (2) participant accessibility, and (3) knowledge dissemination, along with corresponding strategies to these challenges. Researchers experienced disruptions in study outcomes and intervention protocols to adhere to public health guidelines and have suggested implementing novel virtual approaches and study toolkits to facilitate offsite assessment. Participant accessibility could be improved by engaging community stakeholders in protocol revisions to ensure equity, safety, and feasibility. Researchers also experienced barriers to virtual conferences and publication, suggested opportunities for smaller networking events, and revisiting timeframes for knowledge dissemination. CONCLUSION This perspective article served as a catalyst for discussion among rehabilitation researchers to identify novel and creative approaches that address the complexities of conducting rehabilitation research during the COVID-19 pandemic and beyond.
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Mehdipour A, Wiley E, Richardson J, Beauchamp M, Kuspinar A. The Performance of Digital Monitoring Devices for Oxygen Saturation and Respiratory Rate in COPD: A Systematic Review. COPD 2021; 18:469-475. [PMID: 34223780 DOI: 10.1080/15412555.2021.1945021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Healthcare access and delivery for individuals with chronic obstructive pulmonary disease (COPD) who live in remote areas or who are susceptible to contracting communicable diseases, such as COVID-19, may be a challenge. Telehealth and remote monitoring devices can be used to overcome this issue. However, the accuracy of these devices must be ensured before forming healthcare decisions based on their outcomes. Therefore, a systematic review was performed to synthesize the evidence on the reliability, validity and responsiveness of digital devices used for tracking oxygen saturation (SpO2) and/or respiratory rate (RR) in individuals with COPD, in remote settings. Three electronic databases were searched: MEDLINE (1996 to October 8, 2020), EMBASE (1996 to October 8, 2020) and CINAHL (1998 to October 8, 2020). Studies were included if they aimed to evaluate one or more measurement properties of a digital device measuring SpO2 or RR in individuals with COPD. Six-hundred and twenty-five articles were identified and after screening, 7 studies matched the inclusion criteria; covering 11 devices measuring SpO2 and/or RR. Studies reported on the reliability (n = 1), convergent validity (n = 1), concurrent validity (n = 2) and predictive validity (n = 2) of SpO2 devices and on the convergent validity (n = 1), concurrent validity (n = 1) and predictive validity (n = 1) of RR devices. SpO2 and RR devices were valid when compared against other respiration monitoring devices but were not precise in predicting exacerbation events. More well-designed measurement studies are needed to make firm conclusions about the accuracy of such devices.Supplemental data for this article is available online at https://doi.org/10.1080/15412555.2021.1945021 .
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Affiliation(s)
- Ava Mehdipour
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Elise Wiley
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Julie Richardson
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Marla Beauchamp
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Ayse Kuspinar
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
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Mehdipour A, O'Hoski S, Beauchamp MK, Wald J, Kuspinar A. Content validity of preference-based measures for economic evaluation in chronic obstructive pulmonary disease. Health Qual Life Outcomes 2021; 19:101. [PMID: 33743746 PMCID: PMC7981836 DOI: 10.1186/s12955-021-01744-6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 03/11/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Generic preference-based measures (GPBMs) are health-related quality of life (HRQoL) measures commonly used to evaluate the cost-utility of interventions in healthcare. However, the degree to which the content of GPBMs reflect the HRQoL of individuals with chronic obstructive pulmonary disease (COPD) has not yet been assessed. The purpose of this study was to examine the content and convergent validity of GPBMs in people with COPD. METHODS COPD patients were recruited from healthcare centers in Ontario, Canada. The Patient-Generated Index (PGI) (an individualized HRQoL measure) and the RAND-36 (to obtain SF-6D scores; a GPBM) were administered. Life areas nominated with the PGI were coded using the International Classification of Functioning Disability and Health and mapped onto GPBMs. RESULTS We included 60 participants with a mean age of 70 and FEV1% predicted of 43. The mean PGI score was 34.55/100 and the top three overarching areas that emerged were: 'mobility' (25.93%), 'recreation and leisure' (25.19%) and 'domestic life' (19.26%). Mapping of the nominated areas revealed that the Quality of Well-Being scale covered the highest number of areas (84.62%), Health Utilities Indices covered the least (15.38% and 30.77%) and other GPBMs covered between 46 and 62%. A correlation of 0.32 was calculated between the SF-6D and the PGI. CONCLUSIONS The majority of GPBMs covered approximately half of the areas reported as being important to individuals with COPD. When areas relevant to COPD are not captured, HRQoL scores generated by these measures may inaccurately reflect patients' values and affect cost-effectiveness decisions.
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Affiliation(s)
- Ava Mehdipour
- School of Rehabilitation Science, McMaster University, 1400 Main St. W. Room 435, IAHS, Hamilton, ON, L8S 1C7, Canada
| | - Sachi O'Hoski
- School of Rehabilitation Science, McMaster University, 1400 Main St. W. Room 435, IAHS, Hamilton, ON, L8S 1C7, Canada
- Respiratory Research, West Park Healthcare Centre, Toronto, ON, M6M 2J5, Canada
| | - Marla K Beauchamp
- School of Rehabilitation Science, McMaster University, 1400 Main St. W. Room 435, IAHS, Hamilton, ON, L8S 1C7, Canada
- Respiratory Research, West Park Healthcare Centre, Toronto, ON, M6M 2J5, Canada
- Firestone Institute for Respiratory Health, 50 Charlton Ave E, Hamilton, ON, L8N 4A6, Canada
| | - Joshua Wald
- Firestone Institute for Respiratory Health, 50 Charlton Ave E, Hamilton, ON, L8N 4A6, Canada
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Ayse Kuspinar
- School of Rehabilitation Science, McMaster University, 1400 Main St. W. Room 435, IAHS, Hamilton, ON, L8S 1C7, Canada.
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Razavi S, Ahmadi-Roknabadi F, Safarian M, Mehdipour A, Anbarian A, Mirzamohammadi M, Zeinali M, Kazemi Arababadi M. IL-10 IS DOWN-REGULATED IN THE CARDIOVASCULAR DISEASES SUSPECTED PATIENTS, INDEPENDENT OF ANGIOGRAPHY. Probl Radiac Med Radiobiol 2020; 24:449-454. [PMID: 31841486 DOI: 10.33145/2304-8336-2019-24-449-454] [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] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Indexed: 11/10/2022]
Abstract
IL-10 and interferon-gamma (IFN-γ) are the important anti and pro-inflammatory cytokines, respectively, which may participate in the cardiovascular disease pathogenesis. Additionally, environmental factors, such as the X-ray, can modulate cytokine expression. Due to the fact that X-ray is used during angiography, hence, angiography may alter expression of the cytokines. OBJECTIVE Accordingly, this project was aimed to assess IL-10 and IFN-γ serum levels within cardiovascular patients (with and without vessel stenosis) versus healthy controls and also the effects of angiography on the serum levels of the cytokines. MATERIAL AND METHODS This study was performed on the 80 participants, including twenty cases in each group (healthy controls and cardiovascular patients without vessel stenosis, stenosis of 1 vessel and stenosis of more than 1 vessel) to evaluate IL-10 and IFN-γ serum levels using ELISA technique. The IL-10 and IFN-γ serum levels also compared within group 2, 3 and 4 before and after angiography to explore the effects of the technique on the IL-10 and IFN-γ serum levels. RESULTS IL-10, but not IFN-γ, serum levels were higher in the healthy controls than all cardiovascular patients. IL-10 and IFN-γ serum levels were not altered after angiography and also were not differ in the smoker versus non- smoker and opium consuming versus non-opium consuming participants. CONCLUSION Due to the results it may be concluded that IL-10 can be considered as a plausible inhibitor of cardio- vascular diseases independent of angiography duration and X-ray, however, IFN-γ has no effects in the Iranian patients suffering from cardiovascular diseases.
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Affiliation(s)
- S Razavi
- Geriatric Care Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, IranDept. of Laboratory Sciences, Faculty of Paramedicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - F Ahmadi-Roknabadi
- Geriatric Care Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, IranDept. of Laboratory Sciences, Faculty of Paramedicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - M Safarian
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, IranDept of Cardiology, Faculty of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - A Mehdipour
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, IranDept. of Radiology, Faculty of Paramedicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - A Anbarian
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, IranDept of Cardiology, Faculty of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - M Mirzamohammadi
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, IranDept of Cardiology, Faculty of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - M Zeinali
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, IranDept of Cardiology, Faculty of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - M Kazemi Arababadi
- Dept. of Laboratory Sciences, Faculty of Paramedicine, Rafsanjan University of Medical Sciences, Rafsanjan, IranImmunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
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Mahmoudi N, Eslahi N, Mehdipour A, Mohammadi M, Akbari M, Samadikuchaksaraei A, Simchi A. Temporary skin grafts based on hybrid graphene oxide-natural biopolymer nanofibers as effective wound healing substitutes: pre-clinical and pathological studies in animal models. J Mater Sci Mater Med 2017; 28:73. [PMID: 28361280 DOI: 10.1007/s10856-017-5874-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 02/28/2017] [Indexed: 06/07/2023]
Abstract
In recent years, temporary skin grafts (TSG) based on natural biopolymers modified with carbon nanostructures have received considerable attention for wound healing. Developments are required to improve physico-mechanical properties of these materials to match to natural skins. Additionally, in-deep pre-clinical examinations are necessary to ensure biological performance and toxicity effect in vivo. In the present work, we show superior acute-wound healing effect of graphene oxide nanosheets embedded in ultrafine biopolymer fibers (60 nm) on adult male rats. Nano-fibrous chitosan-based skin grafts crosslinked by Genepin with physico-mechanical properties close to natural skins were prepared by electrospinning of highly concentrated chitosan- polyvinylpyrrolidone solutions containing graphene oxide (GO) nanosheets. No surfactants and organic solvents were utilized to ensure high biocompatibility of the fibrous structure. In vitro evaluations by human skin fibroblast cells including live and dead assay and MTT results show that GO promote cell viability of porous nanofibrous membrane while providing enhanced bactericidal capacity. In vivo studies on rat's skin determine accelerated healing effect, i.e. a large open wound (1.5 × 1.5 cm2) is fully regenerated after 14-day of post operation while healing is observed for sterile gauze sponge (as the control). Pathological studies support thick dermis formation and complete epithelialization in the presence of 1.5 wt% GO nanosheets. Over 99% wound healing occurs after 21 days for the injury covered with TSG containing 1.5 wt% GO while this would takes weeks for the control. Therefore, the developed materials have a high potential to be used as TSG as pre-clinical testing has shown.
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Affiliation(s)
- N Mahmoudi
- Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box11155-9161, Azadi Avenue, Tehran, 14588, Iran
| | - N Eslahi
- Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - A Mehdipour
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - M Mohammadi
- Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box11155-9161, Azadi Avenue, Tehran, 14588, Iran
| | - M Akbari
- Department of Mechanical Engineering, University of Victoria, Victoria, BC, Canada
| | - A Samadikuchaksaraei
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - A Simchi
- Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box11155-9161, Azadi Avenue, Tehran, 14588, Iran.
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology, P. O. Box 11365-9466, Azadi Avenue, Tehran, 14588, Iran.
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Habibi RM, Mohammadi RA, Delazar A, Halabian R, Soleimani RJ, Mehdipour A, Bagheri M, Jahanian-Najafabadi A. Effects of polygonum aviculare herbal extract on proliferation and apoptotic gene expression of MCF-7. Daru 2011; 19:326-31. [PMID: 22615677 PMCID: PMC3304393] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 10/03/2011] [Accepted: 10/20/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND AND THE PURPOSE OF THE STUDY One of the most common malignancies in women is breast cancer. Although several treatments for breast cancer are available, application of herbal medicine as a supplementary treatment is a new option to help curing the disease. In this study anticancer effects of Polygonum avicular herbal extract was investigated. METHODS Polygonum avicular extract was obtained by methanol. MCF-7 cell line was treated with different concentrations of Polygonum avicular (50, 100, 150, 200, 250, 300,350 400 ng/µl) for different time lengths ( 6, 12, 24, and 48 hrs). MTT assay and Flow Cytometry were used to evaluate cell proliferation and apoptosis, respectively. RT-PCR was also carried out to evaluate the expression of apoptotic genes. RESULTS AND DISCUSSION Results showed that Polygonum avicular induced cytotoxicity in MCF-7 cell line at concentrations higher than 300 ng/µl and this was confirmed by the highest rate of cell death as measured by Trypan Blue and MTT assays. RT-PCR results showed up-regulation of P53 and down-regulation of Bcl-2 proteins which implied the ability of Polygonum avicular to induce apoptosis in MCF-7 cells and confirmed its anticancer property. Further studies are required to evaluate effects of the extract on other apoptotic genes.
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Affiliation(s)
| | - Roushandeh A. Mohammadi
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz
- Department of Anatomical Sciences, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan
| | - A. Delazar
- Department of Pharmacognosy, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - R. Halabian
- Research center, Iranian Blood Transfusion Organization, Tehran
| | - Rad J. Soleimani
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz
| | - A. Mehdipour
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz
| | - M. Bagheri
- Department of Pathology, Graduate School of Medicine, Tohoku University, Sendai, Japan
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