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Leong WH, Chew MY, Lee ZY, Lim CX, Norizam NAIB, Ong RY, Khor HM, Ong T. 1059 PHYSICAL ACTIVITY AMONG OLDER PEOPLE ADMITTED TO A UNIVERSITY HOSPITAL IN MALAYSIA. Age Ageing 2022. [DOI: 10.1093/ageing/afac125.007] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
Physical inactivity is prevalent among hospitalised older people and is associated with poor outcomes. This study aims to determine activity levels in a Malaysian university hospital.
Method
Direct observation of patients admitted to the geriatric medicine ward over 2 weeks between the hours of 8 am-8 pm was performed. Data was collated onto an observation diary which was piloted, and changes made iteratively. A taxonomy of inpatient activity and healthcare staff interaction was created. Observer training was done to ensure familiarity and consistency in the recording. Data was presented descriptively and comparison made between weekday/weekend. Minutes of activity time per-hour (mins/hr) was use to report findings.
Results
Ninety-one patients were observed over 1918.8 hours (weekday, 1579.67 hours; weekends, 363.87 hours). The observed median (Q1,Q3) was 15.1 (9.4, 30.1) hours per-patient. 32.6 minutes per day on average was spent upright, with the rest spent either sitting or lying down. 78.9% of patients’ time was spent doing nothing. Patients’ position was different between weekdays vs weekends, lying, 35.7 vs 40.8 mins/hr; sitting, 23.3 vs 18.2 mins/hr; and standing, 1.1 vs 1.0 mins/hr. Patients spent significantly less proportion of time active at the weekends (weekdays, 28.3% vs weekends, 19.9%). When individual activities were analysed, patients were doing less walking (weekend, 0.4 vs weekday, 0.01 mins/hr, p = 0.01) therapy-supervised exercise (1.1 vs 0.02 mins/hr, p < 0.01), and nursing care (0.6 vs 0.1 mins/hr, p < 0.01) over the weekend. There was also less doctor interaction (weekday, 1.1 vs 0.5 mins/hr, p = 0.04) and no therapist interaction at the weekend. Nursing input was unchanged.
Conclusion
Older people admitted to a university hospital in Malaysia were very inactive. There was further reduction in activity levels and healthcare interaction at the weekend. Maintaining physical activity during hospitalisation is required to ensure best possible recovery from their acute illness.
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Affiliation(s)
- W H Leong
- Department of Medicine , Faculty of Medicine, , Malaysia
- University of Malaya , Faculty of Medicine, , Malaysia
| | - M Y Chew
- Department of Medicine , Faculty of Medicine, , Malaysia
- University of Malaya , Faculty of Medicine, , Malaysia
| | - Z Y Lee
- Department of Medicine , Faculty of Medicine, , Malaysia
- University of Malaya , Faculty of Medicine, , Malaysia
| | - C X Lim
- Department of Medicine , Faculty of Medicine, , Malaysia
- University of Malaya , Faculty of Medicine, , Malaysia
| | - N A I B Norizam
- Department of Medicine , Faculty of Medicine, , Malaysia
- University of Malaya , Faculty of Medicine, , Malaysia
| | - R Y Ong
- Department of Medicine , Faculty of Medicine, , Malaysia
- University of Malaya , Faculty of Medicine, , Malaysia
| | - H M Khor
- Department of Medicine , Faculty of Medicine, , Malaysia
- University of Malaya , Faculty of Medicine, , Malaysia
| | - T Ong
- Department of Medicine , Faculty of Medicine, , Malaysia
- University of Malaya , Faculty of Medicine, , Malaysia
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Benet S, Gálvez C, Drobniewski F, Kontsevaya I, Arias L, Monguió-Tortajada M, Erkizia I, Urrea V, Ong RY, Luquin M, Dupont M, Chojnacki J, Dalmau J, Cardona P, Neyrolles O, Lugo-Villarino G, Vérollet C, Julián E, Furrer H, Günthard HF, Crocker PR, Tapia G, Borràs FE, Fellay J, McLaren PJ, Telenti A, Cardona PJ, Clotet B, Vilaplana C, Martinez-Picado J, Izquierdo-Useros N. Dissemination of Mycobacterium tuberculosis is associated to a SIGLEC1 null variant that limits antigen exchange via trafficking extracellular vesicles. J Extracell Vesicles 2021; 10:e12046. [PMID: 33489013 PMCID: PMC7807485 DOI: 10.1002/jev2.12046] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/28/2020] [Accepted: 12/01/2020] [Indexed: 12/14/2022] Open
Abstract
The identification of individuals with null alleles enables studying how the loss of gene function affects infection. We previously described a non-functional variant in SIGLEC1, which encodes the myeloid-cell receptor Siglec-1/CD169 implicated in HIV-1 cell-to-cell transmission. Here we report a significant association between the SIGLEC1 null variant and extrapulmonary dissemination of Mycobacterium tuberculosis (Mtb) in two clinical cohorts comprising 6,256 individuals. Local spread of bacteria within the lung is apparent in Mtb-infected Siglec-1 knockout mice which, despite having similar bacterial load, developed more extensive lesions compared to wild type mice. We find that Siglec-1 is necessary to induce antigen presentation through extracellular vesicle uptake. We postulate that lack of Siglec-1 delays the onset of protective immunity against Mtb by limiting antigen exchange via extracellular vesicles, allowing for an early local spread of mycobacteria that increases the risk for extrapulmonary dissemination.
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Affiliation(s)
- Susana Benet
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain.,Department of Retrovirology Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | - Cristina Gálvez
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain.,Department of Retrovirology Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | | | - Irina Kontsevaya
- Department of Retrovirology Imperial College London UK.,Department of Retrovirology Research Center Borstel, Borstel Germany.,Department of Retrovirology N.V. Postnikov Samara Region Clinical Tuberculosis Dispensary Samara Russia
| | - Lilibeth Arias
- Experimental Tuberculosis Unit (UTE) Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES) Madrid Spain
| | - Marta Monguió-Tortajada
- REMAR-IVECAT Group Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,ICREC Research Program Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Department of Cell Biology Physiology and Immunology Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | - Itziar Erkizia
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain
| | - Victor Urrea
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain
| | - Ruo-Yan Ong
- Division of Cell Signalling and Immunology University of Dundee Dundee UK
| | - Marina Luquin
- Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | - Maeva Dupont
- Institut de Pharmacologie et Biologie Structurale IPBS CNRS UPS Université de Toulouse Toulouse France.,International associated laboratory (LIA) CNRS "IM-TB/HIV" (1167) France and Buenos Aires Toulouse Argentina
| | - Jakub Chojnacki
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain
| | - Judith Dalmau
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain
| | - Paula Cardona
- Experimental Tuberculosis Unit (UTE) Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES) Madrid Spain
| | - Olivier Neyrolles
- Institut de Pharmacologie et Biologie Structurale IPBS CNRS UPS Université de Toulouse Toulouse France.,International associated laboratory (LIA) CNRS "IM-TB/HIV" (1167) France and Buenos Aires Toulouse Argentina
| | - Geanncarlo Lugo-Villarino
- Institut de Pharmacologie et Biologie Structurale IPBS CNRS UPS Université de Toulouse Toulouse France.,International associated laboratory (LIA) CNRS "IM-TB/HIV" (1167) France and Buenos Aires Toulouse Argentina
| | - Christel Vérollet
- Institut de Pharmacologie et Biologie Structurale IPBS CNRS UPS Université de Toulouse Toulouse France.,International associated laboratory (LIA) CNRS "IM-TB/HIV" (1167) France and Buenos Aires Toulouse Argentina
| | - Esther Julián
- Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | - Hansjakob Furrer
- Department of Infectious Diseases Bern University Hospital University of Bern Bern Switzerland
| | - Huldrych F Günthard
- Division of Infectious Diseases and Hospital Epidemiology University Hospital Zurich Zurich Switzerland.,Institute of Medical Virology University of Zurich Zurich Switzerland
| | - Paul R Crocker
- Division of Cell Signalling and Immunology University of Dundee Dundee UK
| | - Gustavo Tapia
- Department of Retrovirology Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain.,Pathology Department Hospital Universitario Germans Trias i Pujol Badalona Spain.,Germans Trias i Pujol Research Institute (IGTP) Can Ruti Campus Badalona Spain
| | - Francesc E Borràs
- REMAR-IVECAT Group Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Nephrology Department Germans Trias i Pujol University Hospital Badalona Spain
| | - Jacques Fellay
- School of Life Sciences École Polytechnique Fédérale de Lausanne Lausanne Switzerland.,Swiss Institute of Bioinformatics Lausanne Switzerland.,Precision Medicine Unit Lausanne University Hospital and University of Lausanne Lausanne Switzerland
| | - Paul J McLaren
- JC Wilt Infectious Diseases Research Centre Public Health Agency of Canada Winnipeg Manitoba Canada.,Department of Medical Microbiology and Infectious Diseases University of Manitoba Winnipeg Manitoba Canada
| | | | - Pere-Joan Cardona
- Experimental Tuberculosis Unit (UTE) Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES) Madrid Spain
| | - Bonaventura Clotet
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain.,Germans Trias i Pujol Research Institute (IGTP) Can Ruti Campus Badalona Spain.,AIDS and Related Illnesses Centre for Health and Social Care Research (CESS) Faculty of Medicine University of Vic - Central University of Catalonia (UVic - UCC) Vic Spain
| | - Cristina Vilaplana
- Experimental Tuberculosis Unit (UTE) Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES) Madrid Spain
| | - Javier Martinez-Picado
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain.,Germans Trias i Pujol Research Institute (IGTP) Can Ruti Campus Badalona Spain.,AIDS and Related Illnesses Centre for Health and Social Care Research (CESS) Faculty of Medicine University of Vic - Central University of Catalonia (UVic - UCC) Vic Spain.,Catalan Institution for Research and Advanced Studies (ICREA) Barcelona Spain
| | - Nuria Izquierdo-Useros
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain.,Germans Trias i Pujol Research Institute (IGTP) Can Ruti Campus Badalona Spain
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Abstract
ABSTRACT: Flavivirus and alphavirus are two families of medically important arboviruses known to cause devastating neurologic disease. Exciting knowledge regarding epidemiology, disease and host immune responses are constantly unraveling. In this review, we aim to piece existing knowledge of neurotropic flavi- and alpha-viruses into a general, coherent picture of host–pathogen interactions. Special interest lies in the protective and pathologic host immunity to flavi- and alpha-viral infections, with a strong focus on West Nile virus, Japanese Encephalitis virus and Venezuelan equine encephalitis virus as representatives of their family.
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Affiliation(s)
- Ruo-Yan Ong
- Laboratory of Chikungunya Virus Immunity, Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #04–06 Immunos Biopolis, 138648, Singapore
| | - Fok-Moon Lum
- Laboratory of Chikungunya Virus Immunity, Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #04–06 Immunos Biopolis, 138648, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore
| | - Lisa FP Ng
- Laboratory of Chikungunya Virus Immunity, Singapore Immunology Network, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #04–06 Immunos Biopolis, 138648, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore
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