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Lapierre N, Huet-Fiola C, Labrie D, Vincent-Blouin E, Côté C, Gagnon M, Rhéaume N, Laberge J, Best KL, Routhier F. Digital platforms to facilitate physical activities for people with physical or sensory disabilities: A scoping review. Disabil Health J 2024:101626. [PMID: 38641454 DOI: 10.1016/j.dhjo.2024.101626] [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] [Received: 07/10/2023] [Revised: 04/04/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
BACKGROUND People with disabilities (PWD) commonly experience difficulties in accessing their environments, which can lead to restricted participation in outdoor leisure-time physical activity. Participating in outdoor leisure-time physical activity (OLTPA) provides health and social benefits to PWD and benefits to the communities in which they live. OBJECTIVE The aim of the study was to identify features existing in digital platforms that facilitate access to OLTPA for PWD. METHODS A scoping review was conducted in four library databases and in Google advance search to identify relevant scientific and grey literature, and websites. Each step of the review was independently conducted by two co-authors who confirmed consensus of results. Descriptive data analyses were performed. RESULTS Seven scientific studies and ten websites were included in the scoping review. Seven presented mobile apps, nine presented a website and one presented an online database. Sources reported five main obstacles to using digital platforms that support access to physical activities (e.g., lack of digital literacy, technical issues, unintuitive design), and 10 facilitators (e.g., possibility to personalize your online space, accessibility features of the navigation). Among these sources, a trend emerged in the most important factors and features to consider for the visuals and navigation of the platforms. CONCLUSION The features of digital platforms that facilitate access to OLTPA include intuitive design compliant with accessibility guidelines and supported by navigation tools, personalization of the online space, and features for social interactions.
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Affiliation(s)
- N Lapierre
- School of Rehabilitation, Université Laval, 1050, avenue de la Médecine, Université Laval, Québec, G1V 0A6, Canada; Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Centre intégré de Santé et de Services Sociaux de la Capital-Nationale, 525, boul. Wilfrid-Hamel, Québec, G1M 2S8, Canada; Association Régionale de loisir des Personnes Handicapées - Capitale-Nationale (ARLPH03). 14 Rue Soumande, Québec, G1L 0A4, Canada
| | - C Huet-Fiola
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Centre intégré de Santé et de Services Sociaux de la Capital-Nationale, 525, boul. Wilfrid-Hamel, Québec, G1M 2S8, Canada
| | - D Labrie
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Centre intégré de Santé et de Services Sociaux de la Capital-Nationale, 525, boul. Wilfrid-Hamel, Québec, G1M 2S8, Canada
| | - E Vincent-Blouin
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Centre intégré de Santé et de Services Sociaux de la Capital-Nationale, 525, boul. Wilfrid-Hamel, Québec, G1M 2S8, Canada
| | - C Côté
- Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Centre intégré de Santé et de Services Sociaux de la Capital-Nationale, 525, boul. Wilfrid-Hamel, Québec, G1M 2S8, Canada
| | - M Gagnon
- Library, Université Laval, Québec City, Pavillon Alexandre-Vachon 1045, avenue de la Médecine, Université Laval, Québec, G1V 0A6, Canada
| | - N Rhéaume
- Association Régionale de loisir des Personnes Handicapées - Capitale-Nationale (ARLPH03). 14 Rue Soumande, Québec, G1L 0A4, Canada
| | - J Laberge
- Association Régionale de loisir des Personnes Handicapées - Capitale-Nationale (ARLPH03). 14 Rue Soumande, Québec, G1L 0A4, Canada
| | - K L Best
- School of Rehabilitation, Université Laval, 1050, avenue de la Médecine, Université Laval, Québec, G1V 0A6, Canada; Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Centre intégré de Santé et de Services Sociaux de la Capital-Nationale, 525, boul. Wilfrid-Hamel, Québec, G1M 2S8, Canada
| | - F Routhier
- School of Rehabilitation, Université Laval, 1050, avenue de la Médecine, Université Laval, Québec, G1V 0A6, Canada; Centre for Interdisciplinary Research in Rehabilitation and Social Integration, Centre intégré de Santé et de Services Sociaux de la Capital-Nationale, 525, boul. Wilfrid-Hamel, Québec, G1M 2S8, Canada.
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Clément J, Croteau F, Gagnon M, Cros S. Automatic detection of skate strokes in short-track speed skating using one single IMU: validation of a new method. Sports Biomech 2024:1-12. [PMID: 38602324 DOI: 10.1080/14763141.2024.2331174] [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] [Received: 06/16/2023] [Accepted: 03/07/2024] [Indexed: 04/12/2024]
Abstract
Greater impulse is a key performance indicator of success in short track speed skating. The main objective of this study was to develop a method to measure skating strokes using a single IMU. Eight elite or world-class speed skaters had one IMU placed against their skin on the lower back, and a camera setup was positioned to capture the test. A maximal speed trial was then executed by each participant, and the data were analysed to estimate agreement between the camera and IMU estimates of skate stroke events. Inter-evaluator reliability was assessed on a dataset of 22 athletes performing speed trials as well. The algorithm detected 100% of the strokes identified on the video capture system with a root mean square error of 0.06s. Bland-Altman analysis showed a bias of 0.03s between the two methods, which corresponds to the frame rate of the camera. The inter-evaluator reliability yielded an intra-class correlation of 1.00 (ICC3,1) from a dataset of 7089 strokes. This study provides an example of on-ice evaluation of speed skating strokes using a single IMU. This equipment is less expensive than that employed by previous authors and can be implemented in training situations with low invasiveness.
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Affiliation(s)
- J Clément
- École de technologie supérieure, Laboratoire d'innovation ouverte en technologie de la santé, Montréal, Canada
- Sciences du sport, Institut National du Sport du Québec, Montréal, Canada
- Short Track Teams, Speed skating Canada, Montréal, Canada
| | - F Croteau
- Sciences du sport, Institut National du Sport du Québec, Montréal, Canada
- School of Physical and Occupational Therapy, McGill University, Montréal, Canada
| | - M Gagnon
- Short Track Teams, Speed skating Canada, Montréal, Canada
| | - S Cros
- Short Track Teams, Speed skating Canada, Montréal, Canada
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Caredda C, St-Laurent A, Gagnon M, Harrison S, Bernier E, Gagnon G, Plante AS, Lemieux S, Bégin C, Marceau S, Biertho LD, Tchernof A, Provencher V, Drapeau V, Michaud A, Morisset AS. Attitudes and Behaviors towards Food and Weight in Late Pregnancy: A Comparative Approach between Individuals with and without Previous Bariatric Surgery. Healthcare (Basel) 2024; 12:342. [PMID: 38338227 PMCID: PMC10855954 DOI: 10.3390/healthcare12030342] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/16/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
The aims of this study were to compare, between pregnant individuals with and without bariatric surgery: (1) eating behaviors, (2) intuitive eating components and, (3) attitudes towards weight gain. This retrospective study included data collected in healthy pregnant individuals with and without previous bariatric surgery who were recruited at the Centre Hospitalier Universitaire (CHU) de Québec-Université Laval. Pregnant individuals who underwent bariatric surgery (biliopancreatic bypass with duodenal switch [n = 14] or sleeve gastrectomy [n = 5]) were individually matched, for age (±0.4 years) and body mass index (BMI) (±0.3 kg/m2), with pregnant individuals who have not received bariatric surgery. In the second trimester, participants completed the Three Factor Eating Questionnaire (TFEQ) and the Intuitive Eating Scale 2 (IES-2). In the third trimester, participants completed the French version of the Pregnancy Weight Gain Attitude Scale assessing attitudes towards weight gain. Pregnant individuals who have had bariatric surgery had a higher score for flexible restraint and a lower score for situational susceptibility to disinhibition compared to individuals who have not had undergone bariatric surgery (2.89 ± 1.15 vs. 1.95 ± 1.31; p = 0.04 and 1.11 ± 1.29 vs. 2.79 ± 1.44, respectively; p < 0.001). Regarding intuitive eating, pregnant individuals who experienced bariatric surgery had a higher score for reliance on internal hunger and satiety cues and a lower one for unconditional permission to eat compared with those who had not experienced bariatric surgery (3.99 ± 0.81 vs. 3.30 ± 1.03; p = 0.02 and 3.28 ± 0.54 vs. 3.61 ± 0.68, respectively; p = 0.03). No difference in attitudes towards weight gain was observed between groups. Overall, pregnant individuals who had undergone bariatric surgery had different eating behaviors and intuitive eating components compared to pregnant individuals without bariatric surgery. These results need to be confirmed in further studies with larger sample sizes.
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Affiliation(s)
- Chloé Caredda
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1V 4G2, Canada
- École de Nutrition, Université Laval, Québec, QC G1V 0A6, Canada; (G.G.); (A.T.)
| | - Audrey St-Laurent
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1V 4G2, Canada
- École de Nutrition, Université Laval, Québec, QC G1V 0A6, Canada; (G.G.); (A.T.)
| | - Marianne Gagnon
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1V 4G2, Canada
| | - Stéphanie Harrison
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
| | - Emilie Bernier
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1V 4G2, Canada
- École de Nutrition, Université Laval, Québec, QC G1V 0A6, Canada; (G.G.); (A.T.)
| | - Geneviève Gagnon
- École de Nutrition, Université Laval, Québec, QC G1V 0A6, Canada; (G.G.); (A.T.)
| | - Anne-Sophie Plante
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1V 4G2, Canada
| | - Simone Lemieux
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- École de Nutrition, Université Laval, Québec, QC G1V 0A6, Canada; (G.G.); (A.T.)
| | - Catherine Bégin
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- École de Psychologie, Université Laval, Québec, QC G1V 0A6, Canada
| | - Simon Marceau
- Axe Obésité, Diabète de Type 2 et Métabolisme, Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC G1V 4G5, Canada; (S.M.); (L.D.B.)
| | - Laurent D. Biertho
- Axe Obésité, Diabète de Type 2 et Métabolisme, Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC G1V 4G5, Canada; (S.M.); (L.D.B.)
| | - André Tchernof
- École de Nutrition, Université Laval, Québec, QC G1V 0A6, Canada; (G.G.); (A.T.)
- Axe Obésité, Diabète de Type 2 et Métabolisme, Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC G1V 4G5, Canada; (S.M.); (L.D.B.)
| | - Véronique Provencher
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- École de Nutrition, Université Laval, Québec, QC G1V 0A6, Canada; (G.G.); (A.T.)
| | - Vicky Drapeau
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- Département de Kinésiologie, Université Laval, Québec, QC G1V 0A6, Canada
| | - Andréanne Michaud
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- École de Nutrition, Université Laval, Québec, QC G1V 0A6, Canada; (G.G.); (A.T.)
- Axe Obésité, Diabète de Type 2 et Métabolisme, Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC G1V 4G5, Canada; (S.M.); (L.D.B.)
| | - Anne-Sophie Morisset
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, QC G1V 0A6, Canada (A.S.-L.); (M.G.); (S.H.); (E.B.); (A.-S.P.); (S.L.); (C.B.); (V.P.); (V.D.); (A.M.)
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec, Université Laval, Québec, QC G1V 4G2, Canada
- École de Nutrition, Université Laval, Québec, QC G1V 0A6, Canada; (G.G.); (A.T.)
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Mwaka CR, Best KL, Cunningham C, Gagnon M, Routhier F. Barriers and facilitators of public transport use among people with disabilities: a scoping review. Front Rehabil Sci 2024; 4:1336514. [PMID: 38283669 PMCID: PMC10812606 DOI: 10.3389/fresc.2023.1336514] [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: 11/10/2023] [Accepted: 12/14/2023] [Indexed: 01/30/2024]
Abstract
Barriers to public transport use may be experienced differently by people with various types of disabilities (e.g., physical, intellectual, cognitive, sensory). Thus, it is important to identify the variable needs within each element of the travel chain. For example, the unavailability or low volume of auditory announcements in a stop or station or on the public transport vehicle may be a barrier to people with visual disability who rely on hearing the information. Consequently, this could provoke negative emotions and unpleasant experiences, which may not be the case for people with physical disabilities. The primary objective was to describe the barriers and facilitators to using public transport experienced by people with disabilities (PWD). The secondary aim was to explore experiences in terms of self-efficacy and satisfaction, when using public transport among people with disabilities. A scoping review was conducted. The search was performed in MEDLINE, TRANSPORT DATABASE, PsycINFO, EMBASE, and WEB OF SCIENCE from 1995 to 2023. Of 6,820 citations identified, 34 articles were included in the review for extraction. The main physical and social barriers included lack of ramp, long walking distance, long waiting time, unavailability of information at bus stop or station, and drivers' negative attitudes towards PWD. Personal factors that prevented the use of public transport included lack of confidence, and decreased satisfaction with public transport use. Strategies such as providing ramps on public transport vehicles, availability of kneeling buses and courtesy of bus drivers, and travel training were considered as enablers to the use of public transport that can lead the improved self-efficacy and satisfaction. In conclusion, this review identified the physical and social barriers and facilitators in travel chain, and highlighted issues related to lack of confidence or self-efficacy and decreased satisfaction when PWD and older adults are using public transport. Identifying and understanding the barriers and facilitators to the use of public transport by PWD is a milestone that may help policy makers and transport operators around the world to develop and implement interventions enabling access, use and inclusion of this mode of transport, as the experiences of PWD when using this mode of transport have an impact on their well-being.
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Affiliation(s)
- C. R. Mwaka
- Center for Interdisciplinary Research in Rehabilitation and Social Integration, Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale-Nationale, Québec, QC, Canada
- Faculty of Medicine, School of Rehabilitation Sciences, Université Laval, Québec, QC, Canada
| | - K. L. Best
- Center for Interdisciplinary Research in Rehabilitation and Social Integration, Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale-Nationale, Québec, QC, Canada
- Faculty of Medicine, School of Rehabilitation Sciences, Université Laval, Québec, QC, Canada
| | - C. Cunningham
- Center for Interdisciplinary Research in Rehabilitation and Social Integration, Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale-Nationale, Québec, QC, Canada
- Department of Medicine, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - M. Gagnon
- Library, Université Laval, Québec, QC, Canada
| | - F. Routhier
- Center for Interdisciplinary Research in Rehabilitation and Social Integration, Centre Intégré Universitaire de Santé et de Services Sociaux de la Capitale-Nationale, Québec, QC, Canada
- Faculty of Medicine, School of Rehabilitation Sciences, Université Laval, Québec, QC, Canada
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Hamoutene D, Kingsbury M, Davies J, Le A, Blais DR, Gagnon M. The persistence of emamectin benzoate in marine sediments with different organic matter regimes, temperature conditions, and antibiotic presence. Mar Pollut Bull 2023; 197:115714. [PMID: 37890320 DOI: 10.1016/j.marpolbul.2023.115714] [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] [Received: 08/01/2023] [Revised: 10/11/2023] [Accepted: 10/23/2023] [Indexed: 10/29/2023]
Abstract
The objectives of this 318-day study are to determine half-lives of the anti-sea lice medication emamectin benzoate (EMB) under conditions present in sediments at aquaculture sites and document the degradation of EMB into its main metabolite desmethyl emamectin benzoate (DES). Tested conditions include different matrix types (sand, mud), two temperatures (4, 10 degrees), organic matter presence (fish feed waste and feces), and the presence of oxytetracycline. We document a transformation ratio of EMB to DES of 0.16 to 4.4 % and show that the co-presence of oxytetracycline increases EMB calculated half-lives to values >6000 days for mud matrices. EMB incubated in high organic enrichment regimes was not observed to degrade at 4 degrees. Multivariate analyses show interactions between sediment conditions (matrix, temperature, organic matter [OM], oxytetracycline) influence EMB persistence and DES:EMB ratios. Ranges of EMB half-lives and information on metabolites can be used to anticipate potential effects on marine communities.
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Affiliation(s)
- D Hamoutene
- St. Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, NB E5B 0E4, Canada.
| | - M Kingsbury
- St. Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, NB E5B 0E4, Canada
| | - J Davies
- Pesticide Laboratory, Regulatory Operations and Enforcement Branch, Health Canada, Ottawa, ON K1A 0C6, Canada
| | - A Le
- Pesticide Laboratory, Regulatory Operations and Enforcement Branch, Health Canada, Ottawa, ON K1A 0C6, Canada
| | - D R Blais
- Pesticide Laboratory, Regulatory Operations and Enforcement Branch, Health Canada, Ottawa, ON K1A 0C6, Canada
| | - M Gagnon
- Pesticide Laboratory, Regulatory Operations and Enforcement Branch, Health Canada, Ottawa, ON K1A 0C6, Canada
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Ambrozio-Marques D, Gagnon M, Radcliff AB, Meza AL, Baker TL, Watters JJ, Kinkead R. Gestational intermittent hypoxia increases FosB-immunoreactive perikaryas in the paraventricular nucleus of the hypothalamus of adult male (but not female) rats. Exp Physiol 2023; 108:1376-1385. [PMID: 37642495 PMCID: PMC10841242 DOI: 10.1113/ep091343] [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: 06/12/2023] [Accepted: 08/10/2023] [Indexed: 08/31/2023]
Abstract
Sleep-disordered breathing is a respiratory disorder commonly experienced by pregnant women. The recurrent hypoxaemic events associated with sleep-disordered breathing have deleterious consequences for the mother and fetus. Adult male (but not female) rats born to dams subjected to gestational intermittent hypoxia (GIH) have a higher resting blood pressure than control animals and show behavioural/neurodevelopmental disorders. The origin of this persistent, sex-specific effect of GIH in offspring is unknown, but disruption of the neuroendocrine stress pathways is a key mechanism by which gestational stress increases disease risk in progeny. Using FosB immunolabelling as a chronic marker of neuronal activation, we determined whether GIH augments basal expression of FosB in the perikaryas of cells in the paraventricular nucleus of the hypothalamus (PVN), a key structure in the regulation of the stress response and blood pressure. From gestational day 10, female rats were subjected to GIH for 8 h/day (light phase) until the day before delivery (gestational day 21); GIH consisted of 2 min hypoxic bouts (10.5% O2 ) alternating with normoxia. Control rats were exposed to intermittent normoxia over the same period (GNX). At adulthood (10-15 weeks), the brains of male and female rats were harvested for FosB immunohistochemistry. In males, GIH augmented PVN FosB labelling density by 30%. Conversely, PVN FosB density in GIH females was 28% lower than that of GNX females. We conclude that GIH has persistent and sex-specific impacts on the development of stress pathways, thereby offering a plausible mechanism by which GIH can disturb neural development and blood pressure homeostasis in adulthood. NEW FINDINGS: What is the central question of this study? In pregnant women, sleep apnoea increases the risk of disease for the offspring at various life stages. Given that gestational stress disrupts the programming of the stress pathways, we determined whether exposing female rats to gestational intermittent hypoxia (GIH) activates hypothalamic neurons regulating the stress response in adult rats. What is the main finding and its importance? Using FosB immunolabelling as a marker of marker of neuronal activation, we showed that GIH augmented basal activation of the paraventricular nucleus of the hypothalamus in males, but not females. Disruption of the stress pathways is a new hypothesis to explain the persistent and sex-specific impacts of GIH on offspring health.
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Affiliation(s)
- Danuzia Ambrozio-Marques
- Research Center of the Québec Heart and Lung Institute, Université Laval, Quebec City, Québec, Canada
| | - Marianne Gagnon
- Research Center of the Québec Heart and Lung Institute, Université Laval, Quebec City, Québec, Canada
| | - Abigail B Radcliff
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin, USA
| | - Armand L Meza
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin, USA
| | - Tracy L Baker
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin, USA
| | - Jyoti J Watters
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin, USA
| | - Richard Kinkead
- Research Center of the Québec Heart and Lung Institute, Université Laval, Quebec City, Québec, Canada
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Powell G, Gagnon M, Komarova S, Rauch F, Veilleux LN. Delivering a Home-Based Exercise Program to Youth With Osteogenesis Imperfecta: Protocol for a Comparative-Approach Study. JMIR Res Protoc 2023; 12:e40262. [PMID: 37399052 PMCID: PMC10365614 DOI: 10.2196/40262] [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] [Received: 06/13/2022] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 07/04/2023] Open
Abstract
BACKGROUND Osteogenesis imperfecta (OI) is a rare bone fragility disorder associated with muscle weakness. Individuals with OI may therefore benefit from exercise interventions aiming to improve muscle and bone strength. Given the rarity of OI, many patients do not have access to exercise specialists who are familiar with the disorder. As such, telemedicine, the provision of health care through technology to provide care at a distance, may be well suited for this population. OBJECTIVE The main objectives are (1) to investigate the feasibility and cost-effectiveness of 2 telemedicine approaches for the delivery of an exercise intervention for youth with OI and (2) to assess the impact of the exercise intervention on muscle function and cardiopulmonary fitness in youth with OI. METHODS Patients with OI type I (the mildest form of OI; n=12, aged 12-16 years) from a pediatric orthopedic tertiary hospital will be randomized to receive a 12-week remote exercise intervention in either (1) a supervised group (n=6), monitored every session, or (2) a follow-up group (n=6), receiving monthly progress update appointments. Participants will undergo the following pre- and postintervention evaluations: sit-to-stand test, push-up test, sit-up test, single-legged balance test, and a heel-rise test. Both groups will be given the same 12-week exercise regimen, which includes cardiovascular, resistance, and flexibility training. For each exercise training session involving the supervised group, a kinesiologist will provide instructions to participants through live video sessions using a teleconferencing application. On the other hand, the follow-up group will discuss their progress with the kinesiologist every 4 weeks over a teleconferencing video call. Feasibility will be assessed by recruitment, adherence, and completion rates. A cost-effectiveness analysis of both approaches will be computed. Changes in muscle function and cardiopulmonary fitness will be examined between the 2 groups, pre- and postintervention. RESULTS It is anticipated that the supervised group will have higher adherence and completion rates compared to the follow-up group, which may be associated with greater physiological benefits; however, it may not be as cost-effective compared to the follow-up approach. CONCLUSIONS By determining the most feasible telemedicine approach, this study may serve as a basis for providing increased access to specialized adjunct therapies for individuals with rare disorders. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) PRR1-10.2196/40262.
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Affiliation(s)
- Georgia Powell
- Department of Surgery, Division Surgical and Interventional Sciences, McGill University, Montreal, QC, Canada
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada
| | - Marianne Gagnon
- Department of Surgery, Division Surgical and Interventional Sciences, McGill University, Montreal, QC, Canada
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada
| | - Svetlana Komarova
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada
| | - Frank Rauch
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada
- Department of Pediatrics, McGill University, Montreal, QC, Canada
| | - Louis-Nicolas Veilleux
- Department of Surgery, Division Surgical and Interventional Sciences, McGill University, Montreal, QC, Canada
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada
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Indiketi N, Lhoste E, Grenon MC, Gagnon M, Veilleux É, Triffault-Bouchet G, Couture P. Toxicity and risk management of oil-spiked sediments by diluted bitumen for two freshwater benthic invertebrates. Environ Pollut 2023; 327:121497. [PMID: 36967004 DOI: 10.1016/j.envpol.2023.121497] [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] [Received: 12/16/2022] [Revised: 03/08/2023] [Accepted: 03/21/2023] [Indexed: 06/18/2023]
Abstract
Diluted bitumen (dilbit) is an unconventional oil produced by the oil sands industry in Canada. Despite the knowledge available on hydrocarbon toxicity, the effects of diluted bitumen on benthic organisms are still largely unknown. Moreover, in Quebec there are only provisional threshold values of 164 mg/kg C10-C50 for chronic effects and 832 mg/kg for acute effects. The protectiveness of these values for benthic invertebrates has not been tested for heavy unconventional oils such as dilbit. Two benthic organisms, the larvae of Chironomus riparius and Hyalella azteca, were exposed to these two concentrations and to an intermediate concentration (416 mg/kg) of two dilbits (DB1 and DB2) and a heavy conventional oil (CO). The aim of the study was to assess the sublethal and lethal effects of spiked sediment by dilbit. The oil was rapidly degraded in the sediment, especially in the presence of C. riparius. Amphipods were much more sensitive to oil than chironomids. LC50-14d values for H. azteca were 199 mg/kg C10-C50 for DB1, 299 mg/kg for DB2 and 8.42 mg/kg for CO compared to LC50-7d values for C. riparius of 492 mg/kg for DB1, 563 mg/kg for DB2 and 514 mg/kg for CO. The size of the organisms was reduced compared to controls for both species. The defense enzymes (GST, GPx, SOD and CAT) were not good biomarkers in these two organisms for this type of contamination. The current provisional sediment quality criteria seem too permissive for heavy oils and should be lowered.
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Affiliation(s)
- N Indiketi
- Institut national de la recherche scientifique (INRS), 490 rue de la Couronne, Québec City, QC, G1K 9A9, Canada; Direction générale de la coordination scientifique et du Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Québec City, QC, G1P 3W8, Canada
| | - E Lhoste
- Institut national de la recherche scientifique (INRS), 490 rue de la Couronne, Québec City, QC, G1K 9A9, Canada; Direction générale de la coordination scientifique et du Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Québec City, QC, G1P 3W8, Canada
| | - M C Grenon
- Direction générale de la coordination scientifique et du Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Québec City, QC, G1P 3W8, Canada
| | - M Gagnon
- Direction générale de la coordination scientifique et du Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Québec City, QC, G1P 3W8, Canada
| | - É Veilleux
- Direction générale de la coordination scientifique et du Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Québec City, QC, G1P 3W8, Canada
| | - G Triffault-Bouchet
- Direction générale de la coordination scientifique et du Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (MELCCFP), Québec City, QC, G1P 3W8, Canada
| | - P Couture
- Institut national de la recherche scientifique (INRS), 490 rue de la Couronne, Québec City, QC, G1K 9A9, Canada.
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Gagnon M, Marino Merlo G, Dahan-Oliel N, Veilleux LN. Measurement Repeatability and Reproducibility of Virtual Goniometry of a Set of Acquired Images in Youths with Arthrogryposis Multiplex Congenita. J Musculoskelet Neuronal Interact 2023; 23:175-188. [PMID: 37259657] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVES To evaluate the intra-rater repeatability and the inter-rater reproducibility of using a virtual goniometer to measure upper and lower extremity joint range of motion (ROM) in youths with arthrogryposis multiplex congenita (AMC). METHODS Youths presenting with AMC aged 8 to 21 years old were recruited. ROM of the upper and lower limbs were assessed remotely during a teleassessment on a video-conferencing platform. Screen captures were taken and ROM were measured by two raters, two-weeks apart, using a virtual goniometer. Intraclass correlation coefficient (ICC) and associated 95% confidence interval (CI) were calculated to assess intra-and inter-rater repeatability and reproducibility. RESULTS Nine participants were included with a median age of 15.9 years (range: 11.3 to 20.8 years). The overall intra-rater ICC was 0.997 (95% CI:0.996 to 0.997) for the first rater and 0.993 (95% CI:0.992 to 0.994) for the second rater. The inter-rater ICC ranged from 0.410 (95% CI:-0.392; 0.753) for forearm pronation to 0.998 (95% CI:0.996; 0.999) for elbow flexion. CONCLUSIONS Results of the current study suggest that virtual goniometry is reproducible and repeatable for the ROM of most joints. Future studies should evaluate procedural reliability and validity of the proposed method for youth with complex conditions.
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Affiliation(s)
- Marianne Gagnon
- Shriners Hospitals for Children-Canada, Montreal, Canada
- Department of Surgery, Division of Experimental Surgery, McGill University, Montreal, Canada
| | | | - Noémi Dahan-Oliel
- Shriners Hospitals for Children-Canada, Montreal, Canada
- Faculty of Medicine and Health Sciences, School of Physical & Occupational Therapy, McGill University, Montreal, Canada
| | - Louis-Nicolas Veilleux
- Shriners Hospitals for Children-Canada, Montreal, Canada
- Department of Surgery, Division of Experimental Surgery, McGill University, Montreal, Canada
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10
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Kinkead R, Ambrozio-Marques D, Fournier S, Gagnon M, Guay LM. Estrogens, age, and, neonatal stress: panic disorders and novel views on the contribution of non-medullary structures to respiratory control and CO 2 responses. Front Physiol 2023; 14:1183933. [PMID: 37265841 PMCID: PMC10229816 DOI: 10.3389/fphys.2023.1183933] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 04/21/2023] [Indexed: 06/03/2023] Open
Abstract
CO2 is a fundamental component of living matter. This chemical signal requires close monitoring to ensure proper match between metabolic production and elimination by lung ventilation. Besides ventilatory adjustments, CO2 can also trigger innate behavioral and physiological responses associated with fear and escape but the changes in brain CO2/pH required to induce ventilatory adjustments are generally lower than those evoking fear and escape. However, for patients suffering from panic disorder (PD), the thresholds for CO2-evoked hyperventilation, fear and escape are reduced and the magnitude of those reactions are excessive. To explain these clinical observations, Klein proposed the false suffocation alarm hypothesis which states that many spontaneous panics occur when the brain's suffocation monitor erroneously signals a lack of useful air, thereby maladaptively triggering an evolved suffocation alarm system. After 30 years of basic and clinical research, it is now well established that anomalies in respiratory control (including the CO2 sensing system) are key to PD. Here, we explore how a stress-related affective disorder such as PD can disrupt respiratory control. We discuss rodent models of PD as the concepts emerging from this research has influenced our comprehension of the CO2 chemosensitivity network, especially structure that are not located in the medulla, and how factors such as stress and biological sex modulate its functionality. Thus, elucidating why hormonal fluctuations can lead to excessive responsiveness to CO2 offers a unique opportunity to gain insights into the neuroendocrine mechanisms regulating this key aspect of respiratory control and the pathophysiology of respiratory manifestations of PD.
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Hamoutene D, Gagnon M, Davies J, Le A, Black M, Blais DR, Kingsbury M. Metabolization of emamectin benzoate into desmethyl emamectin benzoate in spiked marine sediments. Chemosphere 2023; 313:137635. [PMID: 36565759 DOI: 10.1016/j.chemosphere.2022.137635] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Emamectin benzoate (EMB) (4″deoxy- 4″-epi-methylaminoavermectin) is a pesticide developed to control pests on various crops, and in forestry. It is also used in salmon aquaculture to control sea lice infestations as an in-feed therapeutant. Little is known about EMB metabolites and potential associated toxicities in marine sediments. In this study, we used natural marine sediments (sand and mud) fortified at an EMB concentration of 60 ppb (wet weight). Results show an almost immediate transformation of EMB to Desmethyl EMB (DES) with no increased rates of metabolization when stored sediment samples were incubated for up to 16 h. The transformation ratio of EMB to DES represented between 0.16 and 0.39% of EMB; values are lower than what has been observed in fish tissue. Data suggest that DES is generated through both abiotic (tested after autoclaving marine sediments) and biological processes. Further work on freshly sampled marine sediments with EMB deposits, different organic regimes, and a detailed assessment of active bacterial communities are necessary to better evaluate the EMB to DES rate of transformation around aquaculture sites.
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Affiliation(s)
- D Hamoutene
- St. Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, NB E5B 0E4, Canada.
| | - M Gagnon
- Pesticide Laboratory, Regulatory Operations and Enforcement Branch, Health Canada, Ottawa, ON K1A 0C6, Canada
| | - J Davies
- Pesticide Laboratory, Regulatory Operations and Enforcement Branch, Health Canada, Ottawa, ON K1A 0C6, Canada
| | - A Le
- Pesticide Laboratory, Regulatory Operations and Enforcement Branch, Health Canada, Ottawa, ON K1A 0C6, Canada
| | - M Black
- St. Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, NB E5B 0E4, Canada
| | - D R Blais
- Pesticide Laboratory, Regulatory Operations and Enforcement Branch, Health Canada, Ottawa, ON K1A 0C6, Canada
| | - M Kingsbury
- St. Andrews Biological Station, Fisheries and Oceans Canada, St. Andrews, NB E5B 0E4, Canada
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12
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Gagnon M, Plante AS, Turcotte M, Bégin C, Michaud A, Provencher V, Morisset AS. Determinants of weight gain and body changes during pregnancy: A qualitative study of French-Canadian pregnant people. J Gynecol Obstet Hum Reprod 2023; 52:102519. [PMID: 36529367 DOI: 10.1016/j.jogoh.2022.102519] [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] [Received: 09/26/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVE More than half of pregnant Canadian people exceed current gestational weight gain recommendations, which has been associated with adverse outcomes for both parent and child. Although the physiological causes of excessive gestational weight gain have been well investigated, few studies have evaluated the context of gestational weight gain and body changes through the perspective of pregnant people. Therefore, we aim to explore factors influencing body changes and weight gain during pregnancy as experienced by pregnant individuals. METHODS A total of three focus groups and six individual interviews were conducted with pregnant people (n=21) recruited in the 2nd or 3rd trimester. A semi-structured interview guide was developed according to a pre-existing conceptual model by Hill et al., 2013. Focus groups and interviews were recorded, transcribed, and thematically analysed using NVivo software. FINDINGS Results were categorized into four main themes, based on the conceptual model: (1) parental psychological, social and cognitive factors, (2) outcomes, (3) parental behaviors and (4) health behavior change constructs. Participants identified structural, social, professional, and especially partner support (1), health-related strategies (2), body image (1) and knowledge of gestational weight gain recommendations (3) as influent components of their body changes experience. CONCLUSIONS In this study, the themes addressed affect both pregnant individuals and their relatives. Enhanced knowledge of gestational weight gain recommendations in this population, support from relatives and quality of follow-up offered by health professionals must therefore be considered as possible avenues of intervention.
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Affiliation(s)
- Marianne Gagnon
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Quebec City, QC, Canada; School of Nutrition, Université Laval, Quebec City, QC, Canada; Endocrinology and Nephrology Unit, CHU of Quebec-Université Laval Research Center, Quebec City, QC, Canada
| | - Anne-Sophie Plante
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Quebec City, QC, Canada; Endocrinology and Nephrology Unit, CHU of Quebec-Université Laval Research Center, Quebec City, QC, Canada
| | - Mylène Turcotte
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Quebec City, QC, Canada
| | - Catherine Bégin
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Quebec City, QC, Canada; School of Psychology, Université Laval, Quebec City, Canada
| | - Andréanne Michaud
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Quebec City, QC, Canada; School of Nutrition, Université Laval, Quebec City, QC, Canada; Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Quebec City, QC, Canada
| | - Véronique Provencher
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Quebec City, QC, Canada; School of Nutrition, Université Laval, Quebec City, QC, Canada
| | - Anne-Sophie Morisset
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Quebec City, QC, Canada; School of Nutrition, Université Laval, Quebec City, QC, Canada; Endocrinology and Nephrology Unit, CHU of Quebec-Université Laval Research Center, Quebec City, QC, Canada.
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Gagnon M, Fournier S, Marcouiller F, Guay L, Joseph V, Michael NJ, Kinkead R. Intermittent Hypoxia and Weight Loss: Insights into the Etiology of the Sleep Apnea Phenotype. Adv Exp Med Biol 2023; 1427:61-71. [PMID: 37322336 DOI: 10.1007/978-3-031-32371-3_7] [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] [Indexed: 06/17/2023]
Abstract
Sleep apnea (SA) is a major respiratory disorder with increased risk for hypertension and obesity; however, our understanding of the origins of this complex disorder remains limited. Because apneas lead to recurrent drops in O2 during sleep, intermittent hypoxia (IH) is the main animal model to explore the pathophysiology of SA. Here, we assessed the impacts of IH on metabolic function and related signals. Adult male rats were exposed to 1 week of moderate IH (FiO2 = 0.10-30 s, ten cycles/hour, 8 h/day). Using whole-body plethysmography, we measured respiratory variability and apnea index during sleep. Blood pressure and heart rate were measured by the tail-cuff method; blood samples were taken for multiplex assay. At rest, IH augmented arterial blood pressure, respiratory instability, but not apnea index. IH induced weight, fat, and fluid loss. IH also reduced food intake and plasma leptin, adrenocorticotropic hormone (ACTH), and testosterone levels but increased inflammatory cytokines. We conclude that IH does not replicate the metabolic clinical features of SA patient, thus raising our awareness of the limitations of the IH model. The fact that the risk for hypertension occurs before the appearance of apneas provides new insights into the progression of the disease.
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Affiliation(s)
- Marianne Gagnon
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Québec City, QC, Canada.
- Faculty of Pharmacy, Université Laval, Québec City, QC, Canada.
| | - Stéphanie Fournier
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Québec City, QC, Canada
| | - François Marcouiller
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Québec City, QC, Canada
| | - Loralie Guay
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Québec City, QC, Canada
| | - Vincent Joseph
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Québec City, QC, Canada
- Department of Pediatrics, Faculty of Medicine, Université Laval, Québec City, QC, Canada
| | - Natalie J Michael
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Québec City, QC, Canada
- Faculty of Pharmacy, Université Laval, Québec City, QC, Canada
| | - Richard Kinkead
- Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Québec City, QC, Canada
- Department of Pediatrics, Faculty of Medicine, Université Laval, Québec City, QC, Canada
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Marques DA, Guay LM, Lapointe X, Gagnon M, Fournier S, Kinkead R. Neonatal stress and loss of ovarian hormones: a novel multidisciplinary approach to understand the coincidence of cardiorespiratory and metabolic disorders in females. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r5962] [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: 11/11/2022]
Affiliation(s)
- Danuzia A. Marques
- Québec Heart and Lung InstituteFaculty of MedicineLaval UniversityQuebecQC
| | | | | | - Marianne Gagnon
- Québec Heart and Lung InstituteFaculty of MedicineLaval UniversityQuébecQC
| | - Stéphanie Fournier
- Québec Heart and Lung InstituteFaculty of MedicineLaval UniversityQuebecQC
| | - Richard Kinkead
- Québec Heart and Lung InstituteFaculty of MedicineLaval UniversityQuebecQC
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Gagnon M, Fournier S, Marcouiller F, Joseph V, Michael NJ, Kinkead R. Sex‐specific Consequences of Psychosocial Stress on Cardiorespiratory Control: a Comparison with Intermittent Hypoxia. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r3722] [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: 11/11/2022]
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St-Laurent A, Savard C, Plante AS, Gagnon M, Robitaille J, Lemieux S, May-Ruchat S, Morisset AS. Health-related preconception factors: adherence to guidelines and associations with weight status. J Acad Nutr Diet 2022; 122:1911-1921. [DOI: 10.1016/j.jand.2022.03.012] [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] [Received: 02/03/2021] [Revised: 01/28/2022] [Accepted: 03/21/2022] [Indexed: 10/18/2022]
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Kinkead R, Gagnon M, Carrier MC, Fournier S, Ambrozio-Marques D. Amygdala-driven apnea: a breath of fresh air in respiratory neurobiology. Biol Psychol 2022; 170:108307. [DOI: 10.1016/j.biopsycho.2022.108307] [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] [Received: 01/10/2022] [Revised: 02/16/2022] [Accepted: 03/03/2022] [Indexed: 11/02/2022]
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Savard C, Lemieux S, Plante AS, Gagnon M, Leblanc N, Veilleux A, Tchernof A, Morisset AS. Longitudinal changes in circulating concentrations of inflammatory markers throughout pregnancy: are there associations with diet and weight status? Appl Physiol Nutr Metab 2021; 47:287-295. [PMID: 34767478 DOI: 10.1139/apnm-2021-0395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The natural inflammation occurring during pregnancy can, under certain conditions, be associated with adverse pregnancy outcomes. This study aimed to: 1) quantify changes in circulating concentrations of leptin, adiponectin, interleukin-6 (IL-6) and C-reactive protein (CRP) across trimesters of pregnancy, according to pre-pregnancy body mass index (ppBMI); and 2) examine the trimester-specific associations between the inflammatory markers' concentrations, a Mediterranean diet score (MDS) and the dietary inflammatory index (DII). We measured leptin, adiponectin and IL-6 by ELISA, and CRP by high-sensitivity immunonephelometry, in blood samples from 79 pregnant women (age: 32.1 ± 3.7 years; ppBMI: 25.7 ± 5.8 kg/m2). Three web-based 24h recalls were completed at each trimester and used to compute the MDS and the DII. CRP concentrations remained stable across trimesters, whereas concentrations of leptin and IL-6 increased, and adiponectin concentrations decreased (p<0.001). Changes in leptin and adiponectin concentrations also differed according to ppBMI categories (p<0.05). As for the dietary scores, the only significant association was observed in the second trimester between leptin concentrations and the MDS (r=-0.26, p<0.05). In conclusion, ppBMI and the progression of pregnancy itself probably supplant the potential associations between diet and the inflammation occurring during that period. Novelty: • Circulating leptin and IL-6 concentrations increased across trimesters whereas CRP was stable, and adiponectin decreased. • Variations in circulating leptin and adiponectin concentrations differed by ppBMI categories. • Very few associations were observed between dietary scores and inflammatory markers.
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Affiliation(s)
- Claudia Savard
- Laval University, 4440, School of Nutrition, Quebec, Quebec, Canada;
| | - Simone Lemieux
- Laval University, School of Nutrition, INAF, Pavillon des services, 2440 Boulevard Hochelaga, Quebec, Quebec, Canada, G1V 0A6;
| | | | - Marianne Gagnon
- Laval University, 4440, School of Nutrition, Quebec, Quebec, Canada.,CHU de Québec-Université Laval, 36896, Endocrinology and Nephrology Unit, Quebec, Quebec, Canada.,Laval University, 4440, Institute of Nutrition and Functional Foods, Quebec, Quebec, Canada;
| | - Nadine Leblanc
- Laval University, Department of Food Science and Nutrition, Quebec, Quebec, Canada;
| | - Alain Veilleux
- Laval University, 4440, School of Nutrition, Quebec, Quebec, Canada;
| | - André Tchernof
- Laval University, Laval University Medical Center, Quebec, Quebec, Canada.,Laval University, Institute of Nutrition and Functional Foods (INAF), Quebec, Quebec, Canada;
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Kinkead R, Gagnon M, Joseph V, Sériès F, Ambrozio-Marques D. Stress and Loss of Ovarian Function: Novel Insights into the Origins of Sex-Based Differences in the Manifestations of Respiratory Control Disorders During Sleep. Clin Chest Med 2021; 42:391-405. [PMID: 34353446 DOI: 10.1016/j.ccm.2021.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/22/2023]
Abstract
The respiratory system of women and men develops and functions in distinct neuroendocrine milieus. Despite differences in anatomy and neural control, homeostasis of arterial blood gases is ensured in healthy individuals regardless of sex. This convergence in function differs from the sex-based differences observed in many respiratory diseases. Sleep-disordered breathing (SDB) results mainly from episodes of upper airway closure. This complex and multifactorial respiratory disorder shows significant sexual dimorphism in its clinical manifestations and comorbidities. Guided by recent progress from basic research, this review discusses the hypothesis that stress is necessary to reveal the sexual dimorphism of SDB.
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Affiliation(s)
- Richard Kinkead
- Department of Pediatrics, Université Laval, Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, Québec G1V 4G5, Canada.
| | - Marianne Gagnon
- Department of Pediatrics, Université Laval, Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, Québec G1V 4G5, Canada
| | - Vincent Joseph
- Department of Pediatrics, Université Laval, Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, Québec G1V 4G5, Canada
| | - Frédéric Sériès
- Department of Medicine, Université Laval, Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, Québec, Québec, Canada
| | - Danuzia Ambrozio-Marques
- Department of Pediatrics, Université Laval, Centre de Recherche de l'Institut Universitaire de Cardiologie et Pneumologie de Québec, 2725 Chemin Ste-Foy, Québec, Québec G1V 4G5, Canada
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Gagnon M, Marino Merlo G, Yap R, Collins J, Elfassy C, Sawatzky B, Marsh J, Hamdy R, Veilleux LN, Dahan-Oliel N. Using Telerehabilitation to Deliver a Home Exercise Program to Youth With Arthrogryposis: Single Cohort Pilot Study. J Med Internet Res 2021; 23:e27064. [PMID: 34255680 PMCID: PMC8292936 DOI: 10.2196/27064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 04/13/2021] [Accepted: 05/06/2021] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Arthrogryposis multiplex congenita (AMC) is characterized by joint contractures and muscle weakness, which limit daily activities. Youths with AMC require frequent physical therapeutic follow-ups to limit the recurrence of contractures and maintain range of motion (ROM) and muscle strength; however, access to specialized care may be limited because of geographical distance. Telerehabilitation can offer a potential solution for delivering frequent follow-ups for youth with AMC, but research on the use of telerehabilitation in children with musculoskeletal disorders is scarce. OBJECTIVE The study aims to evaluate the feasibility of delivering a home exercise program (HEP) by using telerehabilitation for youth with AMC. We also aim to explore the effectiveness of the HEP as a secondary aim. METHODS Youths aged between 8 and 21 years with AMC were recruited at the Shriners Hospitals for Children-Canada. The participants completed baseline and post-HEP questionnaires (the Physical Activity Questionnaire for Adolescents, Pediatrics Outcomes Data Collection Instrument, and Adolescent and Pediatric Pain Tool), and clinicians assessed their active ROM using a virtual goniometer. Clinicians used the Goal Attainment Scale with the participants to identify individualized goals to develop a 12-week HEP and assess the achievement of these goals. Follow-ups were conducted every 3 weeks to adjust the HEP. Data on withdrawal rates and compliance to the HEP and follow-ups were collected to assess the feasibility of this approach. The interrater reliability of using a virtual goniometer was assessed using the intraclass correlation coefficient and associated 95% CI. Nonparametric tests were used to evaluate feasibility and explore the effectiveness of the HEP. RESULTS Of the 11 youths who were recruited, 7 (median age: 16.9 years) completed the HEP. Of the 47 appointments scheduled, 5 had to be rescheduled in ≤24 hours. The participants performed their HEP 2.04 times per week (95% CI 1.25-4.08) and reported good satisfaction with the approach. A general intraclass correlation coefficient of 0.985 (95% CI 0.980-0.989) was found for the web-based ROM measurement. Individualized goals were related to pain management; endurance in writing, standing, or walking; sports; and daily activities. In total, 12 of the 15 goals set with the participants were achieved. Statistically significant improvements were observed in the pain and comfort domain of the Pediatrics Outcomes Data Collection Instrument (preintervention: median 71; 95% CI 34-100; postintervention: median 85; 95% CI 49-100; P=.08) and Physical Activity Questionnaire for Adolescents (preintervention: median 1.62; 95% CI 1.00-2.82; postintervention: median 2.32; 95% CI 1.00-3.45; P=.046). CONCLUSIONS The remote delivery of an HEP for youth with AMC is feasible. Promising results were found for the effectiveness of the HEP in helping youths with AMC to achieve their goals. The next step will be to assess the effectiveness of this exercise intervention in a randomized controlled trial. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) RR2-10.2196/18688.
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Affiliation(s)
- Marianne Gagnon
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada.,Department of Surgery, McGill University, Montreal, QC, Canada
| | | | - Rita Yap
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada
| | - Jessica Collins
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada
| | - Caroline Elfassy
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada.,School of Physical and Occupational Therapy, McGill University, Montreal, QC, Canada
| | - Bonita Sawatzky
- Department of Orthopedics, University of British Columbia, Vancouver, BC, Canada
| | - Jacquelyn Marsh
- School of Physical Therapy, Western University, London, ON, Canada
| | - Reggie Hamdy
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada.,Division of Paediatric Orthopaedics, Department of Paediatric Surgery, Montreal Children Hospital, Montreal, QC, Canada
| | - Louis-Nicolas Veilleux
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada.,Department of Surgery, McGill University, Montreal, QC, Canada
| | - Noémi Dahan-Oliel
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada.,School of Physical and Occupational Therapy, McGill University, Montreal, QC, Canada
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Gagnon M, Trottier J, Weisnagel SJ, Gagnon C, Carreau A, Barbier O, Morisset A. Bile acids during pregnancy: Trimester variations and associations with glucose homeostasis. Health Sci Rep 2021; 4:e243. [PMID: 33614980 PMCID: PMC7875570 DOI: 10.1002/hsr2.243] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/08/2020] [Accepted: 01/11/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND AIMS Bile acids are known to contribute to hepatic glucose and lipid metabolism regulation. Although glucose homeostasis sustains well-characterized modifications during uncomplicated pregnancies, changes in bile acids concentrations and relative proportions throughout pregnancy remain unknown. Furthermore, literature shows strong associations between bile acids profiles and glucose homeostasis under normal metabolic conditions. We seek, first, to characterize bile acids' metabolic changes across trimesters and, second, to evaluate associations between changes in bile acids and glucose homeostasis indexes in the first and second trimesters. METHODS A total of 78 women were recruited and followed at each trimester of pregnancy. Fasting serum samples were collected once per trimester in which quantitative measurement of 30 different bile acids' molecules were performed using liquid chromatography with tandem mass spectrometry (LC-MS/MS). Glucose homeostasis indexes were measured in the first and second trimesters, after a 12-hour fast and following a 75 g oral glucose tolerance test. RESULTS Total bile acids increased from the first trimester to late pregnancy, along with the cholic acid: chenodeoxycholic acid and conjugated: unconjugated bile acids ratios. Changes in bile acids were positively associated with elevated peripheral and hepatic insulin resistance indexes, as well as with trimestral changes in these indexes. CONCLUSION Our findings suggest that modifications occurring in bile acids' profiles during normal pregnancy are associated with changes in glucose homeostasis. Further research is needed to examine the nature of those associations and the possible outcome of bile acids changes on pathological glucose homeostasis alterations during pregnancy.
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Affiliation(s)
- Marianne Gagnon
- School of NutritionLaval UniversityQuebecCanada
- Endocrinology and Nephrology UnitCHU of Québec‐Université Laval Research CenterQuebecCanada
- Centre NUTRISS, Institute of Nutrition and Functional FoodsLaval UniversityQuebecCanada
| | - Jocelyn Trottier
- Endocrinology and Nephrology UnitCHU of Québec‐Université Laval Research CenterQuebecCanada
- Laboratory of Molecular PharmacologyCHU of Québec‐Université Laval Research CenterQuebecCanada
| | - S. John Weisnagel
- Endocrinology and Nephrology UnitCHU of Québec‐Université Laval Research CenterQuebecCanada
- Department of MedicineLaval UniversityQuebecCanada
| | - Claudia Gagnon
- Endocrinology and Nephrology UnitCHU of Québec‐Université Laval Research CenterQuebecCanada
- Department of MedicineLaval UniversityQuebecCanada
| | - Anne‐Marie Carreau
- Endocrinology and Nephrology UnitCHU of Québec‐Université Laval Research CenterQuebecCanada
- Department of MedicineLaval UniversityQuebecCanada
| | - Olivier Barbier
- Endocrinology and Nephrology UnitCHU of Québec‐Université Laval Research CenterQuebecCanada
- Laboratory of Molecular PharmacologyCHU of Québec‐Université Laval Research CenterQuebecCanada
- Faculty of PharmacyLaval UniversityQuebecCanada
| | - Anne‐Sophie Morisset
- School of NutritionLaval UniversityQuebecCanada
- Endocrinology and Nephrology UnitCHU of Québec‐Université Laval Research CenterQuebecCanada
- Centre NUTRISS, Institute of Nutrition and Functional FoodsLaval UniversityQuebecCanada
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Gagnon M, Yannic G, Boyer F, Côté SD. Adult survival in migratory caribou is negatively associated with MHC functional diversity. Heredity (Edinb) 2020; 125:290-303. [PMID: 32728043 DOI: 10.1038/s41437-020-0347-3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 07/04/2020] [Accepted: 07/16/2020] [Indexed: 11/09/2022] Open
Abstract
Genes of the major histocompatibility complex (MHC) are involved in acquired immunity in vertebrates. Only a few studies have investigated the fitness consequences of MHC gene diversity in wild populations. Here, we looked at the association between annual survival and body mass and MHC-DRB exon 2 (MHC-DRB) genetic diversity, obtained from high-throughput sequencing, in two declining migratory caribou (Rangifer tarandus) herds. To disentangle the potential direct and general effects of MHC-DRB genetic diversity, we compared different indices of diversity that were either based on DNA-sequence variation or on physicochemical divergence of the translated peptides, thereby covering a gradient of allelic-to-functional diversity. We found that (1) body mass was not related to MHC-DRB diversity or genotype, and (2) adult survival probability was negatively associated with point accepted mutation distance, a corrected distance that considers the likelihood of each amino acid substitution to be accepted by natural selection. In addition, we found no evidence of fluctuating selection over time on MHC-DRB diversity. We concluded that direct effects were involved in the negative relationship between MHC functional diversity and survival, although the mechanism underlying this result remains unclear. A possible explanation could be that individuals with higher MHC diversity suffer higher costs of immunity (immunopathology). Our results suggest that genetic diversity is not always beneficial even in genes that are likely to be strongly shaped by balancing selection.
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Affiliation(s)
- Marianne Gagnon
- Département de Biologie, Caribou Ungava and Centre d'Études Nordiques, Université Laval, 1045 avenue de la Médecine, Quebec City, QC, G1V 0A6, Canada
| | - Glenn Yannic
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, LECA, 38000, Grenoble, France.
| | - Frédéric Boyer
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, LECA, 38000, Grenoble, France
| | - Steeve D Côté
- Département de Biologie, Caribou Ungava and Centre d'Études Nordiques, Université Laval, 1045 avenue de la Médecine, Quebec City, QC, G1V 0A6, Canada
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Gagnon M, Collins J, Elfassy C, Marino Merlo G, Marsh J, Sawatzky B, Yap R, Hamdy R, Veilleux LN, Dahan-Oliel N. A Telerehabilitation Intervention for Youths With Arthrogryposis Multiplex Congenita: Protocol for a Pilot Study. JMIR Res Protoc 2020; 9:e18688. [PMID: 32589157 PMCID: PMC7381253 DOI: 10.2196/18688] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 04/21/2020] [Indexed: 01/06/2023] Open
Abstract
Background Arthrogryposis multiplex congenita (AMC) is characterized by joint contractures present in at least two body areas. In addition to these contractures, individuals with AMC can have decreased muscle mass, leading to limitations in activities of daily living. Exercise has the potential to maintain or improve the range of motion and muscle strength. However, this type of intervention necessitates frequent follow ups that are currently difficult to provide for youths with AMC because they often live far from a specialized hospital. To overcome this distance challenge, telecommunication technologies can be used to deliver rehabilitation remotely, which is called telerehabilitation. The study protocol for one such type of rehabilitation will be presented in this paper. Objective This pilot study aims to (1) evaluate the feasibility of using telerehabilitation to provide a home exercise program for youths with AMC, and (2) assess the effectiveness of a home exercise program. Methods A total of 10 youths aged 8-21 years with AMC will be recruited. The intervention consists of a 12-week individualized home-based exercise program delivered remotely using telerehabilitation. At baseline, youths will complete the Physical Activity Questionnaire for Adolescents and the Pediatrics Outcomes Data Collection Instrument to assess pain, function, and level of physical activity. During the first telerehabilitation meeting, the rehabilitation therapists will measure range of motion using a virtual goniometer and assess the youth’s functional level. The therapists will then use the Goal Attainment Scale to set objectives and develop the individualized intervention. Follow ups will occur every 3 weeks to make sure exercises are performed safely and to progress the exercises when needed. At the end of the 12-week intervention, rehabilitation therapists will re-evaluate the youth using the same outcome measures as the initial evaluation. The youths will be asked to complete the same questionnaires, with the addition of questions about their satisfaction regarding the intervention. Nonparametric and descriptive statistics will be used to evaluate the feasibility and effectiveness. Results Ethics approval was obtained in October 2018. Recruitment and data collection started in January 2019 and was completed in May 2020. Conclusions This pilot study will help us learn how a large-scale project may work in practice to improve outcomes in physical activity, pain, and function, and goal attainment among youths with AMC, thus informing a future clinical trial. International Registered Report Identifier (IRRID) DERR1-10.2196/18688
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Affiliation(s)
- Marianne Gagnon
- Department of Surgery, McGill University, Montreal, QC, Canada.,Shriners Hospital for Children-Canada, Montreal, QC, Canada
| | | | - Caroline Elfassy
- Shriners Hospital for Children-Canada, Montreal, QC, Canada.,School of Physical and Occupational Therapy, McGill University, Montreal, QC, Canada
| | | | - Jacquelyn Marsh
- School of Physical Therapy, Western University, London, ON, Canada
| | - Bonita Sawatzky
- Department of Orthopedics, University of British Columbia, Vancouver, BC, Canada
| | - Rita Yap
- Shriners Hospital for Children-Canada, Montreal, QC, Canada
| | - Reggie Hamdy
- Shriners Hospital for Children-Canada, Montreal, QC, Canada.,Division of Paediatric Orthopaedics, Department of Paediatric Surgery, Montreal Children Hospital, Montreal, QC, Canada
| | - Louis-Nicolas Veilleux
- Department of Surgery, McGill University, Montreal, QC, Canada.,Shriners Hospital for Children-Canada, Montreal, QC, Canada
| | - Noémi Dahan-Oliel
- Shriners Hospital for Children-Canada, Montreal, QC, Canada.,School of Physical and Occupational Therapy, McGill University, Montreal, QC, Canada
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Savard C, Plante AS, Gagnon M, Robitaille J, Lemieux S, Morisset AS. Do French-Canadian Women Planning a Pregnancy Have a Healthy Diet? Curr Dev Nutr 2020. [DOI: 10.1093/cdn/nzaa054_143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Objectives
Since very few studies investigated dietary habits in women planning to conceive, we aimed to assess the diet quality and supplement use in a population of women who are planning a pregnancy in the following year.
Methods
One hundred sixty-five (165) women trying to become pregnant were enrolled via e-mails in a Web-based study. All women had to complete various Web questionnaires, including three 24 h Web dietary recalls (R24W), from which the Canadian Healthy Eating Index (C-HEI 2007) was calculated. Body mass index (BMI) was calculated using the self-reported weight and height of participants. Information on supplement use and sociodemographic variables were obtained through other Web questionnaires.
Results
Women were aged 30.9 ± 4.3 years on average and had a mean BMI of 24.3 ± 4.8 kg/m2. Most women were Caucasian (92.7%), had a university degree (72.1%) and an annual household income of CAD$80,000 or more (60.0%). Almost two thirds of the women reported taking a multivitamin (33.9%) or a folic acid supplement (30.9%), meaning that more than a third of the women (35.2%) did not take either. The mean C-HEI score was 61.8 ± 12.7 out of 100 (range: 17.2–91.4) and only 13 women (7.9%) had a score higher than 80, which represents a diet of good quality. Most women (74.5%) fell into the «diet requiring improvement» category (HEI score between 50 and 80). Diet quality scores were higher in women aged 28 years and older (vs <28 years, P = 0.03), who had more than a high school degree (vs only a high school degree, P = 0.01) and who reported taking a multivitamin or a folic acid supplement (vs taking neither, P = 0.009).
Conclusions
C-HEI scores showed that diet quality could be improved among women trying to become pregnant, specifically in younger and less educated women. More than a third of the women did not take a prenatal multivitamin or folic acid supplement even though a folic acid supplement is recommended for women planning to conceive. Considering the importance of diet quality and sufficient folic acid intake during preconception and pregnancy, it could be relevant to assess the knowledge of nutritional recommendations in women planning a pregnancy.
Funding Sources
This project is funded by start-up funds from the CHU de Québec-UL research centre (FRQ-S and the CHU de Québec Foundation).
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Gagnon M, Yannic G, Perrier C, Côté SD. No evidence of inbreeding depression in fast declining herds of migratory caribou. J Evol Biol 2019; 32:1368-1381. [PMID: 31514251 DOI: 10.1111/jeb.13533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 08/19/2019] [Accepted: 08/26/2019] [Indexed: 12/28/2022]
Abstract
Identifying inbreeding depression early in small and declining populations is essential for management and conservation decisions. Correlations between heterozygosity and fitness (HFCs) provide a way to identify inbreeding depression without prior knowledge of kinship among individuals. In Northern Quebec and Labrador, the size of two herds of migratory caribou (Rivière-George, RG and Rivière-aux-Feuilles, RAF) has declined by one to two orders of magnitude in the last three decades. This raises the question of a possible increase in inbreeding depression originating from, and possibly contributing to, the demographic decline in those populations. Here, we tested for the association of genomic inbreeding indices (estimated with 22,073 SNPs) with body mass and survival in 400 caribou sampled in RG and RAF herds between 1996 and 2016. We found no association of individual heterozygosity or inbreeding coefficient with body mass or annual survival. Furthermore, those genomic inbreeding indices remained stable over the period monitored. These results suggest that the rapid and intense demographic decline of the herds did not cause inbreeding depression in those populations. Although we found no evidence for HFCs, if demographic decline continues, it is possible that such inbreeding depression would be triggered.
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Affiliation(s)
- Marianne Gagnon
- Département de Biologie, Caribou Ungava and Centre d'Études Nordiques, Université Laval, Quebec, QC, Canada
| | - Glenn Yannic
- CNRS, LECA, Université Grenoble Alpes, University Savoie Mont Blanc, Grenoble, France
| | - Charles Perrier
- CEFE UMR 5175, CNRS, Université de Montpellier, Université Paul Valery Montpellier, Montpellier, France
| | - Steeve D Côté
- Département de Biologie, Caribou Ungava and Centre d'Études Nordiques, Université Laval, Quebec, QC, Canada
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Rodriguez LM, Bickley C, Russo S, Barnes D, Gagnon M, Hamdy R, Veilleux LN. Perspectives on gait and motion analysis in the management of youth with arthrogryposis multiplex congenita. Am J Med Genet C Semin Med Genet 2019; 181:404-409. [PMID: 31359604 DOI: 10.1002/ajmg.c.31728] [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] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/09/2019] [Accepted: 07/14/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Luisa M Rodriguez
- Motion Analysis Center, Shriners Hospitals for Children-Philadelphia, Philadelphia, Pennsylvania, United-States
| | - Christina Bickley
- Motion Analysis Center, Shriners Hospitals for Children-Houston, Houston, Texas, United-States.,Texas Woman's University, School of Physical Therapy, Houston, Texas, United-States
| | - Stephanie Russo
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center-Hamot, Erie, Pennsylvania, United-States
| | - Douglas Barnes
- Motion Analysis Center, Shriners Hospitals for Children-Houston, Houston, Texas, United-States
| | - Marianne Gagnon
- Motion Analysis Center, Shriners Hospitals for Children-Canada, Montréal, Quebec, Canada.,Department of Surgery, Faculty of Medicine, McGill University, Montréal, Quebec, Canada
| | - Reggie Hamdy
- Motion Analysis Center, Shriners Hospitals for Children-Canada, Montréal, Quebec, Canada.,Department of Surgery, Faculty of Medicine, McGill University, Montréal, Quebec, Canada
| | - Louis-Nicolas Veilleux
- Motion Analysis Center, Shriners Hospitals for Children-Canada, Montréal, Quebec, Canada.,Department of Surgery, Faculty of Medicine, McGill University, Montréal, Quebec, Canada
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Gagnon M, Caporuscio K, Veilleux LN, Hamdy R, Dahan-Oliel N. Muscle and joint function in children living with arthrogryposis multiplex congenita: A scoping review. Am J Med Genet C Semin Med Genet 2019; 181:410-426. [PMID: 31350946 DOI: 10.1002/ajmg.c.31726] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 07/10/2019] [Indexed: 11/05/2022]
Abstract
Arthrogryposis multiplex congenita (AMC) is characterized by congenital joint contractures present in two or more body areas. Lack of fetal movement is the underlying cause of AMC, which can lead to abnormal connective tissue surrounding the joint resulting in stiffness and muscle atrophy. Treatment aims at improving function and mobility through surgical and/or conservative interventions. A scoping review was conducted to explore the existing knowledge of the evaluation and treatment of muscle and joint function in children with AMC. Three search engines were included and identified 1,271 articles. Eighty-seven studies met the selection criteria and were included in this review. All included studies focused on joints, 30 of which also assessed the muscle. Assessment most often included the position of the contractures (n = 72), as well as range of motion (n = 66). Interventions to improve muscle and joint function were reported in 82 of the 87 papers and included surgery (n = 70) and conservative interventions (n = 74) with bony surgery (i.e., osteotomy) the most common surgery and rehabilitation the most common conservative intervention. Recurrences of contractures were mentioned in 46 of the 68 studies providing a follow-up. Future studies should use validated measures to assess muscle and joint function, and conservative interventions should be described in greater detail and to include a longer follow-up.
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Affiliation(s)
- Marianne Gagnon
- Shriners Hospital for Children-Canada, Montreal, Québec, Canada.,Department of Surgery, Faculty of Medicine, McGill University, Montreal, Québec, Canada
| | - Kevin Caporuscio
- School of Physical and Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Québec, Canada
| | - Louis-Nicolas Veilleux
- Shriners Hospital for Children-Canada, Montreal, Québec, Canada.,Department of Surgery, Faculty of Medicine, McGill University, Montreal, Québec, Canada
| | - Reggie Hamdy
- Shriners Hospital for Children-Canada, Montreal, Québec, Canada.,Department of Surgery, Faculty of Medicine, McGill University, Montreal, Québec, Canada
| | - Noémi Dahan-Oliel
- Shriners Hospital for Children-Canada, Montreal, Québec, Canada.,School of Physical and Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Québec, Canada
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Gagnon M, Noel C, Cardinal M, Tetu C, Cavallé-Garrido T, Vaujois L, Bigras J, Roy-Lacroix M, Poder T, Vanasse A, Marelli A, Dallaire F. LOW YIELD OF FETAL ECHOCARDIOGRAPHY WHEN NO SUSPICION OF HEART DISEASE BY REFERRING OBSTETRICIAN. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Ropars P, Angers-Blondin S, Gagnon M, Myers-Smith IH, Lévesque E, Boudreau S. Different parts, different stories: climate sensitivity of growth is stronger in root collars vs. stems in tundra shrubs. Glob Chang Biol 2017; 23:3281-3291. [PMID: 28107770 DOI: 10.1111/gcb.13631] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 09/23/2016] [Revised: 12/20/2016] [Accepted: 12/21/2016] [Indexed: 05/06/2023]
Abstract
Shrub densification has been widely reported across the circumpolar arctic and subarctic biomes in recent years. Long-term analyses based on dendrochronological techniques applied to shrubs have linked this phenomenon to climate change. However, the multi-stemmed structure of shrubs makes them difficult to sample and therefore leads to non-uniform sampling protocols among shrub ecologists, who will favor either root collars or stems to conduct dendrochronological analyses. Through a comparative study of the use of root collars and stems of Betula glandulosa, a common North American shrub species, we evaluated the relative sensitivity of each plant part to climate variables and assessed whether this sensitivity is consistent across three different types of environments in northwestern Québec, Canada (terrace, hilltop and snowbed). We found that root collars had greater sensitivity to climate than stems and that these differences were maintained across the three types of environments. Growth at the root collar was best explained by spring precipitation and summer temperature, whereas stem growth showed weak and inconsistent responses to climate variables. Moreover, sensitivity to climate was not consistent among plant parts, as individuals having climate-sensitive root collars did not tend to have climate-sensitive stems. These differences in sensitivity of shrub parts to climate highlight the complexity of resource allocation in multi-stemmed plants. Whereas stem initiation and growth are driven by microenvironmental variables such as light availability and competition, root collars integrate the growth of all plant parts instead, rendering them less affected by mechanisms such as competition and more responsive to signals of global change. Although further investigations are required to determine the degree to which these findings are generalizable across the tundra biome, our results indicate that consistency and caution in the choice of plant parts are a key consideration for the success of future dendroclimatological studies on shrubs.
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Affiliation(s)
- Pascale Ropars
- Chaire de recherche du Canada en biodiversité nordique and Département de biologie, chimie et géographie, Université du Québec à Rimouski, 300 allée des Ursulines, Rimouski, QC, G5L 3A1, Canada
- Centre d'études nordiques, 2405 av. de la Terrasse, Québec, QC, G1V 0A6, Canada
| | - Sandra Angers-Blondin
- Centre d'études nordiques, 2405 av. de la Terrasse, Québec, QC, G1V 0A6, Canada
- School of GeoSciences, University of Edinburgh, Edinburgh, EH9 3FF, UK
| | - Marianne Gagnon
- Centre d'études nordiques, 2405 av. de la Terrasse, Québec, QC, G1V 0A6, Canada
- Département de biologie, Université Laval, 1045 av. de la Médecine, Québec, QC, G1V 0A6, Canada
| | | | - Esther Lévesque
- Centre d'études nordiques, 2405 av. de la Terrasse, Québec, QC, G1V 0A6, Canada
- Département des sciences de l'environnement, Université du Québec à Trois-Rivières, 3351 boul. des Forges, Trois-Rivières, QC, G9A 5H7, Canada
| | - Stéphane Boudreau
- Centre d'études nordiques, 2405 av. de la Terrasse, Québec, QC, G1V 0A6, Canada
- Département de biologie, Université Laval, 1045 av. de la Médecine, Québec, QC, G1V 0A6, Canada
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Bourbonnais A, Rousseau J, Meunier J, Gagnon M, Lalonde M, Lapierre N, Trudeau D. BEHAVIORAL SYMPTOMS AND FALLS IN LONG-TERM CARE FACILITIES: PERCEPTIONS OF GERONTECHNOLOGY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A. Bourbonnais
- Université de Montréal, Montreal, Quebec, Canada,
- Research Centre of the Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada,
| | - J. Rousseau
- Université de Montréal, Montreal, Quebec, Canada,
- Research Centre of the Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada,
| | - J. Meunier
- Université de Montréal, Montreal, Quebec, Canada,
| | - M. Gagnon
- Université Laval, Quebec, Quebec, Canada,
| | - M. Lalonde
- Université de Montréal, Montreal, Quebec, Canada,
- Research Centre of the Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada,
| | - N. Lapierre
- Université de Montréal, Montreal, Quebec, Canada,
- Research Centre of the Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada,
| | - D. Trudeau
- Centre Intégré des Services de Santé et Services Sociaux du Centre-Sud-de-l’Île-de-Montréal, Montreal, Quebec, Canada
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Kawatkar SP, Gagnon M, Hoesch V, Tiong-Yip C, Johnson K, Ek M, Nilsson E, Lister T, Olsson L, Patel J, Yu Q. Design and structure-activity relationships of novel inhibitors of human rhinovirus 3C protease. Bioorg Med Chem Lett 2016; 26:3248-3252. [PMID: 27265257 DOI: 10.1016/j.bmcl.2016.05.066] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 03/16/2016] [Revised: 05/19/2016] [Accepted: 05/21/2016] [Indexed: 10/21/2022]
Abstract
Human rhinovirus (HRV) is a primary cause of common cold and is linked to exacerbation of underlying respiratory diseases such as asthma and COPD. HRV 3C protease, which is responsible for cleavage of viral polyprotein in to proteins essential for viral life-cycle, represents an important target. We have designed proline- and azetidine-based analogues of Rupintrivir that target the P2 pocket of the binding site. Potency optimization, aided with X-ray crystallography and quantum mechanical calculations, led to compounds with activity against a broad spectrum of HRV serotypes. Altogether, these compounds represent alternative starting points to identify promising leads in our continual efforts to treat HRV infections.
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Affiliation(s)
- S P Kawatkar
- AstraZeneca Infection Innovative Medicines Unit, 35 Gatehouse Drive, Waltham, MA, United States.
| | - M Gagnon
- AstraZeneca Infection Innovative Medicines Unit, 35 Gatehouse Drive, Waltham, MA, United States
| | - V Hoesch
- AstraZeneca Infection Innovative Medicines Unit, 35 Gatehouse Drive, Waltham, MA, United States
| | - C Tiong-Yip
- AstraZeneca Infection Innovative Medicines Unit, 35 Gatehouse Drive, Waltham, MA, United States
| | - K Johnson
- AstraZeneca Infection Innovative Medicines Unit, 35 Gatehouse Drive, Waltham, MA, United States
| | - M Ek
- Discovery Sciences, AstraZeneca, Pepparedsleden 1, 43183 Mölndal, Sweden
| | - E Nilsson
- Discovery Sciences, AstraZeneca, Pepparedsleden 1, 43183 Mölndal, Sweden
| | - T Lister
- AstraZeneca Infection Innovative Medicines Unit, 35 Gatehouse Drive, Waltham, MA, United States
| | - L Olsson
- Discovery Sciences, AstraZeneca, Pepparedsleden 1, 43183 Mölndal, Sweden
| | - J Patel
- Discovery Sciences, AstraZeneca, 35 Gatehouse Drive, Waltham, MA, United States
| | - Q Yu
- AstraZeneca Infection Innovative Medicines Unit, 35 Gatehouse Drive, Waltham, MA, United States
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Bahig H, Filion E, Vu T, Lambert L, Chalaoui J, Roberge D, Mathieu D, Beliveau-Nadeau D, Gagnon M, Campeau M. Severe Radiation Pneumonitis After Lung Stereotactic Ablative Radiation Therapy in Patients With Pulmonary Fibrosis. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.361] [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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Jacob JD, Gagnon M, McCabe J. From distress to illness: a critical analysis of medicalization and its effects in clinical practice. J Psychiatr Ment Health Nurs 2014; 21:257-63. [PMID: 23638977 DOI: 10.1111/jpm.12078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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] [Accepted: 04/03/2013] [Indexed: 11/27/2022]
Abstract
This paper is precisely aimed at exposing the limits of psychiatry's scientific claim-making and exploring how psychiatric diagnoses come to be utilized in practice and affect those who become pathologized. Drawing on research findings in the field of HIV/AIDS nursing, we portray the impact of psychiatric pathologization of women who see their bodies transformed by antiretroviral therapy and subsequently, must accept that their response to these changes become the target of psychiatric labelling and interventions. In this paper, we therefore engage with the reader in a critical analysis that exposes the tensions that exist between individual experiences of distress and psychiatric pathologization. The first section of the paper is dedicated to the presentation of a theoretical framework in which we explore the medicalization process and the ontological issues regarding psychiatric diagnoses. The second section seeks to present the results from a qualitative research study in the field of HIV/AIDS nursing and serves as a case example to foster discussions on the implications of psychiatric pathologization in clinical practice.
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Affiliation(s)
- J D Jacob
- School of Nursing, Faculty of Health Sciences, University of Ottawa, Ottawa, ON
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Awan Z, Choi H, Stitziel N, Ruel I, Husa R, Gagnon M, Wang R, Seidah N, Kathiresan S, Genest J. Apoe P.Leu167Del Mutation in Familial Hypercholesterolemia. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.652] [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] Open
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35
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Bussières A, Francis J, Patey A, Gagnon M, Sales A, Eccles M, Lemyre L, Godin G, Grimshaw J. 047 Identifying Factors Predictive of Managing Patients with Low Back Pain without Using X-Rays Among North American Chiropractors: Applying Psychological Theories to Evidence-Based Clinical Practice. BMJ Qual Saf 2013. [DOI: 10.1136/bmjqs-2013-002293.78] [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: 11/04/2022]
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Batona G, Sémini I, Gagnon M, Guedou F, Alary M. P3.401 Implementing For Results: Program Analysis of the HIV/STI Interventions For Sex Workers in Benin. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0854] [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: 11/04/2022]
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37
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Davie KL, Oram Cardy JE, Holmes JD, Gagnon M, Hyde A, Jenkins ME, Johnson AM. The effects of word length, articulation, oral-motor movement, and lexicality on gait: a pilot study. Gait Posture 2012; 35:691-3. [PMID: 22225852 DOI: 10.1016/j.gaitpost.2011.12.006] [Citation(s) in RCA: 3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 09/21/2011] [Accepted: 12/05/2011] [Indexed: 02/02/2023]
Abstract
Previous research has suggested that articulatory demands are important predictors of the impact of dual-task interference on spatial-temporal parameters of gait. In this study, we evaluated the effects of word length, oral-motor movement, articulation, and lexicality, within a verbal task, on a continuous gait task. Fifteen healthy young women participated in a study in which two word lengths (monosyllabic and bisyllabic) were crossed with four levels of secondary task complexity (no dual-task, non-speech movement, spoken non-word, and spoken word). Spatial and temporal parameters of gait were measured using a 23' instrumented carpet. Results indicated a significant multivariate main effect for task type, F(15, 120)=3.07, that explained 71.1% of the demonstrated variability in gait. Univariate analyses of this main effect revealed statistically significant effects for velocity, step time, swing time, and stance time, but no statistically significant effect for step length. Post hoc analyses suggested that dual-task interference produced significant changes in the parameters of gait, but that this interference was not significantly greater with non-words as compared to the non-speech movement condition, nor was it significantly greater with words as compared to non-words. The results of this systematic deconstruction of a simple verbal task suggest that the motor component of a secondary speech task may produce the largest amount of interference within a dual-task interference paradigm.
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Affiliation(s)
- K L Davie
- Health and Rehabilitation Sciences, The University of Western Ontario, Canada
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Petit G, Bigras A, Dube C, Malo FC, Surprenant MC, Salvail M, Gagnon M. P1-S6.47 Description and evaluation of a regional condom access program for community organizations. Br J Vener Dis 2011. [DOI: 10.1136/sextrans-2011-050108.271] [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: 11/04/2022]
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39
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Zihler A, Gagnon M, Chassard C, Braegger C, Lacroix C. Combination of in vitro intestinal continuous fermentation and intestinal cell models to investigate Salmonella and probiotics interactions in infected gut microbiota. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.09.299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Bertard MC, Gagné C, Mercure SA, Gagnon M, Godin G, Côté F. Déterminants psychosociaux d’utilisateurs de drogues d’utiliser une seringue neuve. Rev Epidemiol Sante Publique 2010; 58:197-205. [DOI: 10.1016/j.respe.2010.01.005] [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] [Received: 09/12/2008] [Revised: 06/26/2009] [Accepted: 01/05/2010] [Indexed: 11/28/2022] Open
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Messier C, Gagnon M. Cognitive decline associated with dementia and type 2 diabetes: the interplay of risk factors. Diabetologia 2009; 52:2471-4. [PMID: 19779694 DOI: 10.1007/s00125-009-1533-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2009] [Accepted: 08/26/2009] [Indexed: 01/21/2023]
Affiliation(s)
- C Messier
- School of Psychology, University of Ottawa, 200 Lees Avenue, Room E260J, Ottawa, ON, Canada.
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Abstract
This paper explores the use of subjective perception tasks and its correlations with biomechanical data in the evaluation of manual material handling. Three main dimensions were considered for perception: physical regroups sensations issued from a specific body area; operative regroups feelings related to the execution of the task; and performance regroups feelings that involve a judgement on the execution or reflect overall sensations. The following questions were then explored. To what extent are perception data related to biomechanics data? Do both approaches lead to similar conclusions or interpretations when effect of practice, format and off-centre were tested? How can they complement one another? The task consisted of transferring 50 series of three 15 kg loads in order to verify the impact of free practice, format (box/cylinder) and load centre of gravity position. Eleven subjects rated perception on a CR-10 scale (Borg 1982) after each series. The session was completed with an interview on perception. The net resulting moment was systematically found to be the best correlated with data perception. While all physical and performance items corresponded in various ways to biomechanics data, perceptions associated with operative dimension appeared to be less related with biomechanical data. As regards the impact of practice, format and off-centre, both approaches would lead to the same conclusions, except for the effect of the off-centre. Verbal data add rational information about how or why perception can or cannot be reflected in biomechanics data. How both approaches can be matched more closely in manual handling is discussed.
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Affiliation(s)
- I Nastasia
- Institut de recherche Robert Sauvé en santé et en sécurité du travail, Montreal, Canada.
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Gagnon M. Ergonomic identification and biomechanical evaluation of workers' strategies and their validation in a training situation: summary of research. Clin Biomech (Bristol, Avon) 2005; 20:569-80. [PMID: 15890437 DOI: 10.1016/j.clinbiomech.2005.03.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [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: 03/09/2005] [Accepted: 03/10/2005] [Indexed: 02/07/2023]
Abstract
UNLABELLED Our goal was to evidence the role of workers in the search for safer manual handling strategies. Different strategies used by expert and novice workers, such as footwork (positioning/displacement), box manoeuvres (handgrips and load tilting) and posture were ergonomically identified. They were biomechanically evaluated to shed light on their potential for safe handling by reducing back loadings, back asymmetries and mechanical work requirements. The experts' strategies were validated in a training situation and evaluated by two independent studies among novice workers. The first, a control study, showed that free practice did not lead to safer handling practices. The second, a training situation based on observing contrasted performances of experts and novices for footwork, box manoeuvres and back posture, when combined with practice and the search for optimal solutions, prompted the novices to adopt new ways of manoeuvring boxes and positioning themselves that appear safer for back efforts, asymmetries, and mechanical work. These elements should be included in educational programs for safe handling. RELEVANCE The observation of contrasted strategies of expert and novice workers using an ergonomic approach, supplemented by biomechanical evaluations of these strategies, is a key factor in designing training programs for safe handling.
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Affiliation(s)
- M Gagnon
- Laboratoire de biomécanique, Département de kinésiologie, Université de Montréal, Montréal, Qué., Canada H3C 3J7.
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Huletsky A, Giroux R, Rossbach V, Gagnon M, Vaillancourt M, Bernier M, Gagnon F, Truchon K, Bastien M, Picard FJ, van Belkum A, Ouellette M, Roy PH, Bergeron MG. New real-time PCR assay for rapid detection of methicillin-resistant Staphylococcus aureus directly from specimens containing a mixture of staphylococci. J Clin Microbiol 2004; 42:1875-84. [PMID: 15131143 PMCID: PMC404602 DOI: 10.1128/jcm.42.5.1875-1884.2004] [Citation(s) in RCA: 323] [Impact Index Per Article: 16.2] [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: 07/16/2003] [Revised: 10/08/2003] [Accepted: 02/10/2004] [Indexed: 01/07/2023] Open
Abstract
Molecular methods for the rapid identification of methicillin-resistant Staphylococcus aureus (MRSA) are generally based on the detection of an S. aureus-specific gene target and the mecA gene. However, such methods cannot be applied for the direct detection of MRSA from nonsterile specimens such as nasal samples without the previous isolation, capture, or enrichment of MRSA because these samples often contain both coagulase-negative staphylococci (CoNS) and S. aureus, either of which can carry mecA. In this study, we describe a real-time multiplex PCR assay which allows the detection of MRSA directly from clinical specimens containing a mixture of staphylococci in <1 h. Five primers specific to the different staphylococcal cassette chromosome mec (SCCmec) right extremity sequences, including three new sequences, were used in combination with a primer and three molecular beacon probes specific to the S. aureus chromosomal orfX gene sequences located to the right of the SCCmec integration site. Of the 1,657 MRSA isolates tested, 1,636 (98.7%) were detected with the PCR assay, whereas 26 of 569 (4.6%) methicillin-susceptible S. aureus (MSSA) strains were misidentified as MRSA. None of the 62 nonstaphylococcal bacterial species or the 212 methicillin-resistant or 74 methicillin-susceptible CoNS strains (MRCoNS and MSCoNS, respectively) were detected by the assay. The amplification of MRSA was not inhibited in the presence of high copy numbers of MSSA, MRCoNS, or MSCoNS. The analytical sensitivity of the PCR assay, as evaluated with MRSA-negative nasal specimens containing a mixture of MSSA, MRCoNS, and MSCoNS spiked with MRSA, was approximately 25 CFU per nasal sample. This real-time PCR assay represents a rapid and powerful method which can be used for the detection of MRSA directly from specimens containing a mixture of staphylococci.
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Affiliation(s)
- A Huletsky
- Centre de Recherche en Infectiologie de l'Université Laval, CHUQ and Division de Microbiologie, Faculté de Médecine, Université Laval, Sainte-Foy, Québec, Canada G1V 4G2
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Abstract
OBJECTIVES To evaluate the efficacy of training for three manual handling strategies, i.e. load tilting/hands positioning, shoulders positioning and feet orientation based on the observation of the contrasted strategies of expert and novice workers and free practice using a search approach. DESIGN Ten novice male workers were tested at pre-training (one trial) and post-training with homogeneous boxes (three trials) and heterogeneous boxes (two trials) sampled from two sessions. Training took place with homogeneous boxes whereas heterogeneous boxes were new situations. BACKGROUND The effectiveness of training programs in safe handling and the repetition of specified techniques are contested; they should rather be based on expert workers' strategies. METHODS Pre-training and post-training trials were analyzed with five video cameras and a large force plate. The biomechanical variables included three safety criteria: net 3D resulting moments at L5/S1, asymmetry of posture/efforts at L5/S1 and mechanical work on load; kinematics and ergonomic variables were used as explicative variables. RESULTS Training produced safer strategies by reducing mechanical work and back extensor moments; this occurred in both load conditions, an indication of the transfer of knowledge. These strategies consisted of changes in load maneuvers (tilting/hand positioning) and feet orientation. CONCLUSIONS Training programs should be based on observations of workers. RELEVANCE These results may guide the specialists involved in training programs. Training based on a search approach by the learner and anchored on observations of contrasted strategies (load tilts/hands positioning and feet orientation) by experts and novices appears promising for safe handling.
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Affiliation(s)
- M Gagnon
- Laboratoire de biomécanique, Département de kinésiologie, Université de Montréal, 2100 boul Edouard-Montpetit, C.P. 6128, Succursale Centre-Ville, Montréal, Qué., Canada H3C 3J7.
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Abstract
1. In humans, the effects of dietary creatine supplementation are controversial, with some studies showing increased muscle force and fatigue resistance and others reporting no effect on exercise performance. Little is known about the effects of creatine on muscle contractile properties. 2. Rats were fed a standard diet, creatine for 10 days or beta-guanidinopropionate, which depletes muscle creatine, for 7 days. Contractile properties were measured in isolated extensor digitorum longus and sternohyoid muscle as representative limb and upper airway dilator muscles, respectively. 3. Creatine had no effect on specific twitch and tetanic tension, contractile kinetics, twitch/tetanus tension ratio, the tension-frequency relationship or fatigue in both muscles. beta-Guanidinopropionate had no effect on the twitch and tetanic tension, contractile kinetics, twitch/tetanus tension ratio or tension-frequency relationship, but significantly increased (P < 0.05, anova) fatigue in both muscles. 4. Therefore, although creatine depletion increases fatigue, creatine loading has no effects on extensor digitorum longus and sternohyoid muscle contractile properties.
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Affiliation(s)
- M Gagnon
- Department of Physiology, Royal College of Surgeons in Ireland, St Stephenís Green, Dublin, Ireland
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47
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Cheung B, Heskin R, Hofer K, Gagnon M. The menstrual cycle and susceptibility to coriolis-induced sickness. J Vestib Res 2002; 11:129-36. [PMID: 11847456] [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: 02/23/2023]
Abstract
Survey studies on motion sickness susceptibility suggest that females tend to report greater severity in illness and higher incidence of vomiting than males. Menstruation is said to be a contributing factor. A recent study suggested that females were least susceptible to seasickness during ovulation in a "round the world" yacht race. Sixteen subjects (18-36 years old) were exposed to Coriolis cross-coupling stimulation in the laboratory. They were tested once during permenstruation (Day 1-5), ovulation (Day 12-15) and premenstruation (Day 24-28), based on a normalized 28-day cycle, in a randomised design. Physiological measurements of motion sickness included forearm and calf cutaneous blood flow. Subjective evaluation of sickness symptoms was based on Graybiel's diagnostic criteria and Golding's rating method. Our results indicated that under controlled laboratory conditions, different phases of the menstrual cycle appear to have no influence on subjective symptoms of motion sickness or on cutaneous blood flow increase in the forearm and calf. The lack of commonality between the types and levels of hormones that are released during motion sickness and those that are involved in different menstrual phases appears to support our findings.
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Affiliation(s)
- B Cheung
- Aerospace Life Support Section, Defence and Civil Institute of Environmental Medicine, 1133 Sheppard Ave. W, Toronto, Ontario, Canada.
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Abstract
The use of a kinematic robotic model has not been implemented in the biomechanical-data acquisition protocol, as it has in workplace analysis, ergonomics and design. The purpose of this paper was to assess the use of a kinematic model to retrieve frames of human movements from data obtained at a low sampling frequency. From experimental trials with an original sampling frequency of 60 Hz, the data were sampled again at two lower frequencies, 5 Hz and 10 Hz. The model was then used to reconstitute the data to its original frequency (60 Hz). The results demonstrated that it was possible to retrieve a full 3-D human movement from a sampling rate lower than normal without sacrificing accuracy. It was observed from both reduced sampling frequencies that the error level was comparable to the usual accuracy of a DLT 3-D reconstruction technique. It was therefore concluded that the data retrieved from these two frequencies were very similar to the original data sampled at 60 Hz.
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Affiliation(s)
- P Desjardins
- Laboratoire de biomécanique, Département de kinésiologie, Université de Montréal, Montréal, Québec, Canada.
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Knott V, Messier C, Mahoney C, Gagnon M. Glucose and glucoregulatory modulation of memory scanning, event-related potentials and EEG in elderly subjects. Neuropsychobiology 2001; 44:156-66. [PMID: 11586056 DOI: 10.1159/000054936] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Endogenous P300b event-related potential (ERP) and behavioral performance measures, extracted during a visual memory scanning task, and spectral indices of resting electroencephalographic (EEG) activity, were assessed in 12 healthy elderly adults before and after double-blind oral administration of a placebo or glucose (50 mg) beverage. Glucoregulation was estimated by deriving a recovery index to categorize subjects as having better (BR) or poorer (PR) blood glucose recovery. Although glucoregulatory status did not impact on EEG or task performance, PR subjects exhibited reduced P300b areas relative to BR subjects prior to beverage administration. Glucose did not alter P300b or memory scanning performance but, regardless of glucoregulatory status, it increased the EEG power in the slow alpha frequency band. The study results suggest that peripheral glucoregulation can influence neuroelectric measures of cognition and that the acute ingestion of glucose can modulate central arousal processes.
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Affiliation(s)
- V Knott
- Department of Psychiatry and Psychology, University of Ottawa/Royal Ottawa Hospital and Institute of Mental Health Research, Ottawa, Ont., Canada.
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50
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Awad N, Gagnon M, Tsiakis M, Desrochers A, Messier C. Glucose regulation predicts decrements on declarative memory performance of healthy young adults. Arch Clin Neuropsychol 2001. [DOI: 10.1093/arclin/16.8.859] [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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