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Zhao X, Li T, Guo T, He X, Ren X, Wang M, Wang C, Peng C, Zhang J, Wu L. Supramolecular Structure of the β-Cyclodextrin Metal-Organic Framework Optimizes Iodine Stability and Its Co-delivery with l-Menthol for Antibacterial Applications. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38688002 DOI: 10.1021/acsami.4c02258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
The spread of upper respiratory tract (URT) infections harms people's health and causes social burdens. Developing targeted treatment strategies for URT infections that exhibit good biocompatibility, stability, and strong antimicrobial effects remains challenging. The dual antimicrobial and antiviral effects of iodine (I2) in combination with the cooling sensation of l-menthol in the respiratory tract can simultaneously alleviate URT inflammation symptoms. However, as both I2 and l-menthol are volatile, addressing stability issues is crucial. In this study, a potassium iodide β-cyclodextrin metal-organic framework [β-CD-POF(I)] with appropriate particle size was used to coload and deliver I2 and l-menthol. Primarily, β-CD-POF(I) was employed as the most efficient carrier to significantly enhance the stability of I2, surpassing any other known protection strategies in the pharmaceutical field (CD complexations, PVP conjugations, and cadexomer iodine). The mechanism underlying the improvement in stability of I2 by β-CD-POF(I) was investigated through scanning electron microscopy with energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and molecular docking. The results revealed that the key processes involved in improving stability were the inclusion of I2 by β-CD cavities in β-CD-POF(I) and the formation of polyiodide anion between iodine ions and I2. Furthermore, the potential of β-CD-POF(I) to load and deliver drugs was validated, and coloading of l-menthol and I2 demonstrated reliable stability. β-CD-POF(I) achieved a rate of URT deposition ≥95% in vitro, and the combined antibacterial effects of coloaded I2 and l-menthol was better than I2 or PVP-I alone, with no irritation noted following URT administration in rabbits. Therefore, the stable coloading of drugs by β-CD-POF(I), leading to enhanced antimicrobial effects, provides a new strategy for treating URT infections.
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Affiliation(s)
- Xiangyu Zhao
- Anhui University of Chinese Medicine, Hefei 230012, China
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
- Yangtze Delta Drug Advanced Research Institute, Nantong 226133, China
| | - Tianfu Li
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
- Shenyang Pharmaceutical University, Shenyang 110016, China
- Yangtze Delta Drug Advanced Research Institute, Nantong 226133, China
| | - Tao Guo
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
| | - Xiaojian He
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
- Yangtze Delta Drug Advanced Research Institute, Nantong 226133, China
| | - Xiaohong Ren
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
| | - Manli Wang
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Caifen Wang
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
- Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Can Peng
- Anhui University of Chinese Medicine, Hefei 230012, China
- Yangtze Delta Drug Advanced Research Institute, Nantong 226133, China
| | - Jiwen Zhang
- Anhui University of Chinese Medicine, Hefei 230012, China
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
- Shenyang Pharmaceutical University, Shenyang 110016, China
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
- NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients, National Institutes for Food and Drug Control, Beijing 100050, China
| | - Li Wu
- Anhui University of Chinese Medicine, Hefei 230012, China
- Center for Drug Delivery Systems, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201210, China
- Shenyang Pharmaceutical University, Shenyang 110016, China
- Yangtze Delta Drug Advanced Research Institute, Nantong 226133, China
- NMPA Key Laboratory for Quality Research and Evaluation of Pharmaceutical Excipients, National Institutes for Food and Drug Control, Beijing 100050, China
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Jacinto T, Smith E, Diciolla NS, van Herck M, Silva L, Granados Santiago M, Volpato E, Grønhaug LM, Verkleij M, Peters JB, Sylvester K, Inal-Ince D, Padilha JM, Langer D, Demeyer H, Cruz J. ERS International Congress 2023: highlights from the Allied Respiratory Professionals Assembly. ERJ Open Res 2024; 10:00889-2023. [PMID: 38529350 PMCID: PMC10962454 DOI: 10.1183/23120541.00889-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 11/15/2023] [Indexed: 03/27/2024] Open
Abstract
This article summarises some of the outstanding sessions that were (co)organised by the Allied Respiratory Professionals Assembly during the 2023 European Respiratory Society International Congress. Two sessions from each Assembly group are outlined, covering the following topics: Group 9.01 focuses on respiratory physiology techniques, specifically on predicted values and reference equations, device development and novel applications of cardiopulmonary exercise tests; Group 9.02 presents an overview of the talks given at the mini-symposium on exercise training, physical activity and self-management at home and outlines some of the best abstracts in respiratory physiotherapy; Group 9.03 highlights the nursing role in global respiratory health and presents nursing interventions and outcomes; and Group 9.04 provides an overview of the best abstracts and recent advances in behavioural science and health psychology. This Highlights article provides valuable insight into the latest scientific data and emerging areas affecting the clinical practice of Allied Respiratory Professionals.
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Affiliation(s)
- Tiago Jacinto
- Porto Health School, Polytechnic Institute of Porto, Porto, Portugal
- MEDCIDS, Department of Community Medicine, Information and Health Decision Sciences, Faculty of Medicine, University of Porto, Porto, Portugal
- CINTESIS@RISE - Centre for Health Technology and Services Research, Porto, Portugal
- These authors contributed equally to writing
| | - Elizabeth Smith
- Wal-Yan Respiratory Research Centre, Telethon Kids Institute, Perth, Australia
- Respiratory Medicine Department, Royal Perth Hospital, Perth, Australia
- These authors contributed equally to writing
| | - Nicola S Diciolla
- Physiotherapy in Women's Health Research Group - FPSM, Department of Nursing and Physiotherapy, University of Alcalá, Alcalá de Henares, Spain
- Respiratory Research and Rehabilitation Laboratory - Lab3R, School of Health Sciences (ESSUA), University of Aveiro, Aveiro, Portugal
- Institute of Biomedicine - iBiMED, University of Aveiro, Aveiro, Portugal
- These authors contributed equally to writing
| | - Maarten van Herck
- Department of Research and Education, Ciro, Horn, The Netherlands
- REVAL - Rehabilitation Research Center, BIOMED - Biomedical Research Institute, Faculty of Rehabilitation Sciences, Hasselt University, Diepenbeek, Belgium
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria
- Faculty of Medicine, Sigmund Freud University, Vienna, Austria
- These authors contributed equally to writing
| | - Liliana Silva
- CINTESIS@RISE - Centre for Health Technology and Services Research, Porto, Portugal
- Matosinhos Local Health Unit, Matosinhos, Portugal
- These authors contributed equally to writing
| | - Maria Granados Santiago
- Department of Nursing, Faculty of Health Science, University of Granada, Granada, Spain
- These authors contributed equally to writing
| | - Eleonora Volpato
- Department of Psychology, Università Cattolica del Sacro Cuore, Milan, Italy
- IRCCS Fondazione Don Carlo Gnocchi, Milan, Italy
- These authors contributed equally to writing
| | - Louise Muxoll Grønhaug
- Department of Medicine, Lillebaelt Hospital, University Hospital of Southern Denmark, Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
- These authors contributed equally to writing
| | - Marieke Verkleij
- Child and Adolescent Psychiatry and Psychosocial Care, Emma Children's Hospital, Amsterdam UMC, Amsterdam, The Netherlands
| | - Jeannette B Peters
- Department of Pulmonary Diseases, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Karl Sylvester
- Cambridge Respiratory Physiology, Royal Papworth and Cambridge University Hospitals, Cambridge, UK
| | - Deniz Inal-Ince
- Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
| | - José Miguel Padilha
- CINTESIS@RISE - Centre for Health Technology and Services Research, Porto, Portugal
- Escola Superior de Enfermagem do Porto (Nursing School of Porto), Porto, Portugal
| | - Daniel Langer
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Heleen Demeyer
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
- These authors contributed equally to conceptualisation, writing, review and editing
| | - Joana Cruz
- Center for Innovative Care and Health Technology (ciTechCare), School of Health Sciences (ESSLei), Polytechnic Institute of Leiria, Leiria, Portugal
- These authors contributed equally to conceptualisation, writing, review and editing
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Bianquis C, Rolland-Debord C, Rivals I, Similowski T, Morélot-Panzini C. Dyspnoea relief as an inherent benefit of high flow nasal cannula therapy: A laboratory randomized trial in healthy humans. Respirology 2024; 29:46-55. [PMID: 37656056 DOI: 10.1111/resp.14580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 08/14/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND AND OBJECTIVE Persistent dyspnoea is a public health issue for which the therapeutic arsenal is limited. This study tested high-flow nasal cannula therapy (HFNT) as a means to alleviate experimental dyspnoea. METHODS Thirty-two healthy subjects underwent an experimental dyspnoea induced by thoracoabdominal elastic loading. HFNT was administered with alternately FiO2 of 100% (HFNT100) or 21% (HFNT21). The sensory (S-VAS) and affective (A-VAS) components of dyspnoea, transcutaneous CO2 pressure (PtcCO2 ), pulse-oximetry oxygen saturation (SpO2 ), heart rate, respiratory rate and skin galvanometry were monitored continuously. Three experimental sessions of 8 min were conducted: the first session consisted in familiarization with the experimental dyspnoea and the next two sessions tested the effects of HFNT100 and HFNT21 alternatively in a randomized order. RESULTS HFNT21 and HFNT100 significantly reduced dyspnoea, respectively of ∆A-VAS = 0.80 cm [-0.02-1.5]; p = 0.007 and ∆A-VAS = 1.00 cm [0.08-1.75]; p < 0.0001; ∆S-VAS = 0.70 cm [-0.15-1.98]), p < 0.0001 and ∆S-VAS = 0.70 cm [0.08-1.95]), p = 0.0002) with no significant difference between HFNT21 and HFNT100. HFNT did not significantly alter the respiratory rate or the heart rate, reduced PtcCO2 only on room air and GSR under both experimental conditions. CONCLUSION HFNT was associated with a statistically significant reduction in the intensity of the sensory and affective components of dyspnoea, independent of oxygen addition. This relief of laboratory dyspnoea could result from a reduction of afferent-reafferent mismatch.
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Affiliation(s)
- Clara Bianquis
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service des Pathologies du Sommeil (Département "R3S"), AP-HP. Sorbonne Université, Hôpital Pitié-Salpêtrière, Paris, France
| | - Camille Rolland-Debord
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Pneumologie, CHU Gabriel Montpied, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Isabelle Rivals
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Equipe de Statistique Appliquée, ESPCI Paris, PSL Research University, Paris, France
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Département "R3S", AP-HP. Sorbonne Université, Hôpital Pitié-Salpêtrière, Paris, France
| | - Capucine Morélot-Panzini
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Pneumologie (Département "R3S"), AP-HP. Sorbonne Université, Hôpital Pitié-Salpêtrière, Paris, France
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Tsutsumi Y, Momma H, Ebihara S, Nagatomi R. L-menthol administration facilitates breathing comfort during exhaustive endurance running and improves running capacity in well-trained runners: A randomized crossover study. Eur J Sport Sci 2023; 23:1913-1921. [PMID: 35997234 DOI: 10.1080/17461391.2022.2115404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
ABSTRACTThis study aimed to clarify the contribution of L-menthol administration to endurande exercise capacity. Thirteen male runners (age, 35.8 ± 7.8 years; peak oxygen uptake, 62.7 ± 6.8 mL kg-1 min-1) ran on treadmills at fixed intensities of their anaerobic thresholds to exhaustion. All participants underwent three trials-water ingestion (W-IG), L-menthol mouth rinsing (M-MR), and L-menthol ingestion (M-IG)- in a random order every 5 min while running. Breathing comfort (BC) was measured immediately after fluid intake. Dyspnea threshold against external inspiratory resistance was examined before and after the running test. The running time with M-IG (1683.9 ± 520.3 s) was longer than that with W-IG (1410.2 ± 465.9 s, effect size [ES] = 0.55). BC with M-IG (2.00 ± 0.74) was higher than that with W-IG (0.42 ± 0.79) at exhaustion (ES > 2.00). The dyspnea threshold after running decreased to 19.2 ± 7.6 cm H₂O L-1 s-1 with W-IG, whereas that with M-MR (26.2 ± 6.5 cm H₂O L-1 s-1) and M-IG (29.2 ± 2.8 cm H₂O L-1 s-1) remained high (p for interaction < 0.001). M-IG facilitated BC during running, improved endurance capacity, and prevented decreases in the dyspnea threshold against external inspiratory resistance after exhaustive running.HighlightsL-menthol ingestion facilitated breathing comfort during high intensity endurance running and improved exhaustive endurance running capacity.Even after exhaustion, L-menthol solution relieved dyspnea sensitivity against external inspiratory resistance.L-menthol ingestion might help athletes improve their endurance running capacity.
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Affiliation(s)
- Yoshiko Tsutsumi
- Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Haruki Momma
- Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Satoru Ebihara
- Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Ryoichi Nagatomi
- Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Tohoku University Graduate School of Biomedical Engineering, Sendai, Miyagi, Japan
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5
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Sato N, Ogura R, Iwanami Y, Okuni I, Ebihara S. L-Menthol Olfactory Stimulation Reduced Dyspnea Sensation during the 6 min Walk Test in Patients with Chronic Breathlessness Syndrome: A Pilot Study. J Clin Med 2023; 12:5587. [PMID: 37685654 PMCID: PMC10488411 DOI: 10.3390/jcm12175587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/09/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
There are very limited methods of relieving dyspnea that are independent of the causative disease. L-menthol olfactory stimulation is reported to be effective for dyspnea during exercise and inspiratory resistance. Therefore, we examined the effects of L-menthol olfactory stimulation on exertional dyspnea during the 6 min walking distance test (6MWT) in patients with chronic breathlessness syndrome. The subjects who consented to the study were divided into two groups. In Group A, the first 6MWT was performed as usual (placebo) while wearing a surgical mask, and the second 6MWT was performed under the L-menthol condition. In Group B, the first 6MWT was performed under the L-menthol condition, and the second 6MWT was performed as a placebo. A total of 16 subjects (70.8 ± 9.5 years) were included in the analysis. As for the effect of reducing dyspnea, a significant difference was observed in Group A patients who underwent the L-menthol condition in the second 6MWT (p = 0.034). In the comparison of the 6 min walking test under the L-menthol condition and the placebo, the modified Borg scale gain was significantly different between the L-menthol condition and the placebo (p = 0.007). Our results suggested that the L-menthol olfactory stimulation reduced dyspnea on exertion in patients with chronic breathlessness syndrome.
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Affiliation(s)
- Naofumi Sato
- Department of Rehabilitation Medicine, Toho University Omori Medical Center, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Ryoji Ogura
- Department of Rehabilitation Medicine, Toho University Omori Medical Center, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Yuji Iwanami
- Department of Rehabilitation Medicine, Toho University Omori Medical Center, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Ikuko Okuni
- Department of Rehabilitation Medicine, Toho University Omori Medical Center, 6-11-1 Omori-nishi, Ota-ku, Tokyo 143-8541, Japan
| | - Satoru Ebihara
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-5874, Japan
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Illidi CR, Romer LM, Johnson MA, Williams NC, Rossiter HB, Casaburi R, Tiller NB. Distinguishing science from pseudoscience in commercial respiratory interventions: an evidence-based guide for health and exercise professionals. Eur J Appl Physiol 2023; 123:1599-1625. [PMID: 36917254 PMCID: PMC10013266 DOI: 10.1007/s00421-023-05166-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/19/2023] [Indexed: 03/16/2023]
Abstract
Respiratory function has become a global health priority. Not only is chronic respiratory disease a leading cause of worldwide morbidity and mortality, but the COVID-19 pandemic has heightened attention on respiratory health and the means of enhancing it. Subsequently, and inevitably, the respiratory system has become a target of the multi-trillion-dollar health and wellness industry. Numerous commercial, respiratory-related interventions are now coupled to therapeutic and/or ergogenic claims that vary in their plausibility: from the reasonable to the absurd. Moreover, legitimate and illegitimate claims are often conflated in a wellness space that lacks regulation. The abundance of interventions, the range of potential therapeutic targets in the respiratory system, and the wealth of research that varies in quality, all confound the ability for health and exercise professionals to make informed risk-to-benefit assessments with their patients and clients. This review focuses on numerous commercial interventions that purport to improve respiratory health, including nasal dilators, nasal breathing, and systematized breathing interventions (such as pursed-lips breathing), respiratory muscle training, canned oxygen, nutritional supplements, and inhaled L-menthol. For each intervention we describe the premise, examine the plausibility, and systematically contrast commercial claims against the published literature. The overarching aim is to assist health and exercise professionals to distinguish science from pseudoscience and make pragmatic and safe risk-to-benefit decisions.
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Affiliation(s)
- Camilla R Illidi
- Clinical Exercise and Respiratory Physiology Laboratory, Department of Kinesiology and Physical Education, Faculty of Education, McGill University, Montréal, QC, Canada
| | - Lee M Romer
- Division of Sport, Health and Exercise Sciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge, UK
| | - Michael A Johnson
- Exercise and Health Research Group, Sport, Health and Performance Enhancement (SHAPE) Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, Nottinghamshire, UK
| | - Neil C Williams
- Exercise and Health Research Group, Sport, Health and Performance Enhancement (SHAPE) Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, Nottinghamshire, UK
| | - Harry B Rossiter
- Institute of Respiratory Medicine and Exercise Physiology, Division of Respiratory and Critical Care Physiology and Medicine, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, 1124 W. Carson Street, CDCRC Building, Torrance, CA, 90502, USA
| | - Richard Casaburi
- Institute of Respiratory Medicine and Exercise Physiology, Division of Respiratory and Critical Care Physiology and Medicine, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, 1124 W. Carson Street, CDCRC Building, Torrance, CA, 90502, USA
| | - Nicholas B Tiller
- Institute of Respiratory Medicine and Exercise Physiology, Division of Respiratory and Critical Care Physiology and Medicine, The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, 1124 W. Carson Street, CDCRC Building, Torrance, CA, 90502, USA.
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Zhang M, Ma Y, Ye X, Zhang N, Pan L, Wang B. TRP (transient receptor potential) ion channel family: structures, biological functions and therapeutic interventions for diseases. Signal Transduct Target Ther 2023; 8:261. [PMID: 37402746 DOI: 10.1038/s41392-023-01464-x] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/26/2023] [Accepted: 04/25/2023] [Indexed: 07/06/2023] Open
Abstract
Transient receptor potential (TRP) channels are sensors for a variety of cellular and environmental signals. Mammals express a total of 28 different TRP channel proteins, which can be divided into seven subfamilies based on amino acid sequence homology: TRPA (Ankyrin), TRPC (Canonical), TRPM (Melastatin), TRPML (Mucolipin), TRPN (NO-mechano-potential, NOMP), TRPP (Polycystin), TRPV (Vanilloid). They are a class of ion channels found in numerous tissues and cell types and are permeable to a wide range of cations such as Ca2+, Mg2+, Na+, K+, and others. TRP channels are responsible for various sensory responses including heat, cold, pain, stress, vision and taste and can be activated by a number of stimuli. Their predominantly location on the cell surface, their interaction with numerous physiological signaling pathways, and the unique crystal structure of TRP channels make TRPs attractive drug targets and implicate them in the treatment of a wide range of diseases. Here, we review the history of TRP channel discovery, summarize the structures and functions of the TRP ion channel family, and highlight the current understanding of the role of TRP channels in the pathogenesis of human disease. Most importantly, we describe TRP channel-related drug discovery, therapeutic interventions for diseases and the limitations of targeting TRP channels in potential clinical applications.
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Affiliation(s)
- Miao Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
- The Center for Microbes, Development and Health; Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yueming Ma
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Xianglu Ye
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Ning Zhang
- Experiment Center for Science and Technology, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Lei Pan
- The Center for Microbes, Development and Health; Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, 200031, China.
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Bing Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
- Center for Pharmaceutics Research, Shanghai Institute of Materia Medica Chinese Academy of Sciences, Shanghai, 201203, China.
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Kanezaki M, Terada K, Ebihara S. Nasal stimulation with l-menthol ameliorates breathlessness in patients with interstitial lung disease. Eur Respir J 2023; 61:2202453. [PMID: 37142339 DOI: 10.1183/13993003.02453-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/20/2023] [Indexed: 05/06/2023]
Affiliation(s)
- Masashi Kanezaki
- Department of Physical Therapy, School of Health Sciences, Tokyo International University, Saitama, Japan
| | - Kunihiko Terada
- Terada Clinic, Respiratory Medicine and General Practice, Himeji, Japan
| | - Satoru Ebihara
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
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9
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Aucoin R, Lewthwaite H, Ekström M, von Leupoldt A, Jensen D. Impact of trigeminal and/or olfactory nerve stimulation on measures of inspiratory neural drive: Implications for breathlessness. Respir Physiol Neurobiol 2023; 311:104035. [PMID: 36792044 DOI: 10.1016/j.resp.2023.104035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/07/2023] [Accepted: 02/12/2023] [Indexed: 02/16/2023]
Abstract
The perception of breathlessness is mechanistically linked to the awareness of increased inspiratory neural drive (IND). Stimulation of upper airway cold receptors on the trigeminal nerve (TGN) with TGN agonists such as menthol or cool air to the face/nose has been hypothesized to reduce breathlessness by decreasing IND. The aim of this systematic scoping review was to identify and summarize the results of studies in animals and humans reporting on the impact of TGN stimulation or blockade on measures of IND. Thirty-one studies were identified, including 19 in laboratory animals and 12 in human participants. Studies in laboratory animals consistently reported that as TGN activity increased, measures of IND decreased (e.g., phrenic nerve activity). In humans, stimulation of the TGN with a stream of cool air to the face/nose decreased the sensitivity of the ventilatory chemoreflex response to hypercapnia. Otherwise, TGN stimulation with menthol or cool air to the face/note had no effect on measures of IND in humans. This review provides new insight into a potential neural mechanism of breathlessness relief with selected TGN agonists.
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Affiliation(s)
- Rachelle Aucoin
- Clinical Exercise & Respiratory Physiology Laboratory, Department of Kinesiology and Physical Education, McGill University, 475 Pine Avenue West, Montréal, Quebec H2W 1S4, Canada.
| | - Hayley Lewthwaite
- College of Engineering, Science and Environment, School of Environment & Life Sciences, The University of Newcastle, 10 Chittaway Road, Ourimbah, NSW 2258, Australia
| | - Magnus Ekström
- Department of Respiratory Medicine, Allergology and Palliative Medicine, Institution for Clinical Sciences in Lund, Lund University, SE-221 00 Lund, Sweden
| | - Andreas von Leupoldt
- Health Psychology, University of Leuven, Tiensestraat 102 Box 3726, 3000 Leuven, Belgium
| | - Dennis Jensen
- Clinical Exercise & Respiratory Physiology Laboratory, Department of Kinesiology and Physical Education, McGill University, 475 Pine Avenue West, Montréal, Quebec H2W 1S4, Canada; Research Institute of the McGill University Health Centre, Translational Research in Respiratory Diseases Program and Respiratory Epidemiology and Clinical Research Unit, 2155 Guy Street Suite 500, Montréal, Quebec H3H 2R9, Canada
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10
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Aucoin R, Lewthwaite H, Ekström M, von Leupoldt A, Jensen D. Impact of trigeminal nerve and/or olfactory nerve stimulation on activity of human brain regions involved in the perception of breathlessness. Respir Physiol Neurobiol 2023; 311:104036. [PMID: 36804472 DOI: 10.1016/j.resp.2023.104036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/07/2023] [Accepted: 02/12/2023] [Indexed: 02/17/2023]
Abstract
Breathlessness is a centrally processed symptom, as evidenced by activation of distinct brain regions such as the insular cortex and amygdala, during the anticipation and/or perception of breathlessness. Inhaled L-menthol or blowing cool air to the face/nose, both selective trigeminal nerve (TGN) stimulants, relieve breathlessness without concurrent improvements in physiological outcomes (e.g., breathing pattern), suggesting a possible but hitherto unexplored central mechanism of action. Four databases were searched to identify published reports supporting a link between TGN stimulation and activation of brain regions involved in the anticipation and/or perception of breathlessness. The collective results of the 29 studies demonstrated that TGN stimulation activated 12 brain regions widely implicated in the anticipation and/or perception of breathlessness, including the insular cortex and amygdala. Inhaled L-menthol or cool air to the face activated 75% and 33% of these 12 brain regions, respectively. Our findings support the hypothesis that TGN stimulation contributes to breathlessness relief by altering the activity of brain regions involved in its central neural processing.
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Affiliation(s)
- Rachelle Aucoin
- Clinical Exercise & Respiratory Physiology Laboratory, Department of Kinesiology and Physical Education, McGill University, 475 Pine Avenue West, Montréal, Quebec H2W 1S4, Canada.
| | - Hayley Lewthwaite
- College of Engineering, Science and Environment, School of Environment & Life Sciences, The University of Newcastle, 10 Chittaway Road, Ourimbah, NSW 2258, Australia
| | - Magnus Ekström
- Department of Respiratory Medicine, Allergology and Palliative Medicine, Institution for Clinical Sciences in Lund, Lund University, SE-221 00 Lund, Sweden
| | - Andreas von Leupoldt
- Health Psychology, University of Leuven, Tiensestraat 102 Box 3726, 3000 Leuven, Belgium
| | - Dennis Jensen
- Clinical Exercise & Respiratory Physiology Laboratory, Department of Kinesiology and Physical Education, McGill University, 475 Pine Avenue West, Montréal, Quebec H2W 1S4, Canada; Research Institute of the McGill University Health Centre, Translational Research in Respiratory Diseases Program and Respiratory Epidemiology and Clinical Research Unit, 2155 Guy Street Suite 500, Montréal, Quebec H3H 2R9, Canada
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11
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Ferreira DH, Kochovska S, McNeill R, Currow DC. Current pharmacological strategies for symptomatic reduction of persistent breathlessness - a literature review. Expert Opin Pharmacother 2023; 24:233-244. [PMID: 36525673 DOI: 10.1080/14656566.2022.2160239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
INTRODUCTION Persistent breathlessness is a debilitating symptom that is prevalent in the community, particularly in people with chronic and life-limiting illnesses. Treatment includes different steps, including pharmacological treatment aiming to improve the symptom and optimize people's wellbeing. AREAS COVERED PubMed and Google Scholar were screened using 'chronic breathlessness' OR 'persistent breathlessness,' AND 'pharmacological treatment,' OR 'opioids.' This review focuses on pharmacological treatments to reduce persistent breathlessness and discusses possible mechanisms involved in the process of breathlessness reduction through pharmacotherapy. Research gaps in the field of persistent breathlessness research are outlined, and future research directions are suggested. EXPERT OPINION Regular, low-dose (≤30 mg/day), sustained-release morphine is recommended as the first-line pharmacological treatment for persistent breathlessness. Inter-individual variation in response needs to be investigated in future studies in order to optimize clinical outcomes. This includes 1) better understanding the centrally mediated mechanisms associated with persisting breathlessness and response to pharmacological therapies, 2) understanding benefit from the perspective of people experiencing persistent breathlessness, small and meaningful gains in physical activity.
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Affiliation(s)
- Diana H Ferreira
- Faculty of Science, Medicine and Health, University of Wollongong, 2522, Wollongong, Australia
| | - Slavica Kochovska
- Faculty of Science, Medicine and Health, University of Wollongong, 2522, Wollongong, Australia.,IMPACCT, Faculty of Health, University of Technology Sydney, 2007, Ultimo, Australia
| | - Richard McNeill
- Department of palliative care, Nurse Maude Hospice, 8014, Christchurch, New Zealand.,Department of Medicine, University of Otago, 8011, Christchurch, New Zealand
| | - David C Currow
- Faculty of Science, Medicine and Health, University of Wollongong, 2522, Wollongong, Australia
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12
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Beaumont M, Latiers AC, Prieur G. [The role of the physiotherapist in the assessment and management of dyspnea]. Rev Mal Respir 2023; 40:169-187. [PMID: 36682956 DOI: 10.1016/j.rmr.2022.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/20/2022] [Indexed: 01/21/2023]
Abstract
The role of the physiotherapist in the assessment and management of dyspnea. Dyspnea is the most common symptom in cardio-respiratory diseases. Recently improved comprehension of dyspnea mechanisms have underlined the need for three-faceted assessment. The three key aspects correspond to the "breathing, thinking, functioning" clinical model, which proposes a multidimensional - respiratory, emotional and functional - approach. Before initiating treatment, it is essential for several reasons to assess each specific case, determining the type of dyspnea affecting the patient, appraising the impact of shortness of breath, and estimating the effectiveness of the treatment applied. The physiotherapist has a major role to assume in the care of dyspneic patients, not only in assessment followed by treatment but also as a major collaborator in a multidisciplinary team, especially with regard to pulmonary rehabilitation. The aim of this review is to inventory the existing assessment tools and the possible physiotherapies for dyspnea, using a holistic approach designed to facilitate the choice of techniques and to improve quality of care by fully addressing the patient's needs.
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Affiliation(s)
- M Beaumont
- Service de réadaptation respiratoire, Centre Hospitalier des Pays de Morlaix, Morlaix, France; Inserm, Univ Brest, CHRU Brest, UMR 1304, GETBO, Brest, France.
| | - A C Latiers
- Service ORL, Stomatologie et Soins Continus, Cliniques universitaires Saint-Luc, 1200 Brussels, Belgique
| | - G Prieur
- Institut de Recherche Expérimentale et Clinique (IREC), Pôle de Pneumologie, ORL & Dermatologie, Groupe de Recherche en Kinésithérapie Respiratoire, Université Catholique de Louvain, 1200 Brussels, Belgique; Université de Normandie, UNIROUEN, EA3830-GRHV, 76000 Rouen, France; Groupe Hospitalier du Havre, Service de pneumologie et de réadaptation respiratoire, avenue Pierre Mendes France, 76290 Montivilliers, France; Institut de Recherche et Innovation en Biomédecine (IRIB), 76000 Rouen, France
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13
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Miyatake M, Okazaki T, Suzukamo Y, Matsuyama S, Tsuji I, Izumi SI. High Mortality in an Older Japanese Population with Low Forced Vital Capacity and Gender-Dependent Potential Impact of Muscle Strength: Longitudinal Cohort Study. J Clin Med 2022; 11:jcm11185264. [PMID: 36142910 PMCID: PMC9505108 DOI: 10.3390/jcm11185264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 11/21/2022] Open
Abstract
Generally, weak muscle power is associated with high mortality. We aimed to evaluate the unknown association between % predicted value forced vital capacity (FVC% predicted) and mortality in asymptomatic older people, and the impact of muscle power on this association. We analyzed the Tsurugaya cohort that enrolled Japanese people aged ≥70 for 15 years with Cox proportional hazards model. Exposure variables were FVC% predicted and leg power. The outcome was all-cause mortality. The subjects were divided into quartiles by FVC% predicted or leg power, or into two groups by 80% for FVC% predicted or by the strongest 25% for leg power. Across 985 subjects, 262 died. The males with lower FVC% predicted exhibited higher mortality risks. The hazard ratio (HR) was 2.03 (95% CI 1.30−3.18) at the lowest relative to the highest groups. The addition of leg power reduced the HR to 1.78 (95% CI 1.12−2.80). In females, FVC% predicted under 80% was a risk factor and the HR was 1.67 (95% CI 1.05−2.64) without the effect of leg power. In FVC% predicted <80% males HRs were 2.44 (95% CI 1.48−4.02) in weak and 1.38 (95% CI 0.52−3.64) in strong leg power males, relative to ≥80% and strong leg power males. Low FVC% predicted was associated with high mortality with potential unfavorable effects of weak leg power in males.
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Affiliation(s)
- Midori Miyatake
- Department of Physical Medicine and Rehabilitation, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Tatsuma Okazaki
- Department of Physical Medicine and Rehabilitation, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
- Center for Dysphagia of Tohoku University Hospital, Sendai 980-8575, Japan
- Correspondence: ; Tel.: +81-22-717-7338
| | - Yoshimi Suzukamo
- Department of Physical Medicine and Rehabilitation, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Sanae Matsuyama
- Division of Epidemiology, Department of Health Informatics and Public Health, School of Public Health, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Ichiro Tsuji
- Division of Epidemiology, Department of Health Informatics and Public Health, School of Public Health, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Shin-Ichi Izumi
- Department of Physical Medicine and Rehabilitation, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
- Center for Dysphagia of Tohoku University Hospital, Sendai 980-8575, Japan
- Department of Physical Medicine and Rehabilitation, Tohoku University Graduate School of Biomedical Engineering, Sendai 980-8575, Japan
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14
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Kanezaki M, Ebihara S. Limitations of a 6-minute-walk test to assess the efficacy of menthol for breathlessness. ERJ Open Res 2022; 8:00090-2022. [PMID: 35539436 PMCID: PMC9081546 DOI: 10.1183/23120541.00090-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/15/2022] [Indexed: 11/18/2022] Open
Abstract
Walking is a vital component of physical activity in patients with chronic obstructive pulmonary disease (COPD). Exertional multidimensional breathlessness in daily life can reduce walking speed and time in patients with established COPD [1]. Improvement in breathlessness beyond a minimal clinically significant difference brought about by pulmonary rehabilitation, pharmaceutical bronchodilators and opioids has been reported [2–4]. However, despite guideline-directed disease-specific therapy, some patients with COPD experience residual breathlessness. Therefore, the application of a novel symptom-based treatment that is widely available will benefit patients with long-term breathlessness. l-Menthol is a novel treatment option for breathlessness in patients with COPD. However, the clinical application of menthol for the treatment of exertional breathlessness in these patients warrants further research.https://bit.ly/3D6rLiJ
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15
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Williams MT, Lewthwaite H, Paquet C, Johnston K, Olsson M, Belo LF, Pitta F, Morelot-Panzini C, Ekström M. Dyspnoea-12 and Multidimensional Dyspnea Profile: Systematic Review of Use and Properties. J Pain Symptom Manage 2022; 63:e75-e87. [PMID: 34273524 DOI: 10.1016/j.jpainsymman.2021.06.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/22/2021] [Accepted: 06/26/2021] [Indexed: 12/13/2022]
Abstract
CONTEXT The Dyspnoea-12 (D-12) and Multidimensional Dyspnea Profile (MDP) were specifically developed for assessment of multiple sensations of breathlessness. OBJECTIVES This systematic review aimed to identify the use and measurement properties of the D-12 and MDP across populations, settings and languages. METHODS Electronic databases were searched for primary studies (2008-2020) reporting use of the D-12 or MDP in adults. Two independent reviewers completed screening and data extraction. Study and participant characteristics, instrument use, reported scores and minimal clinical important differences (MCID) were evaluated. Data on internal consistency (Cronbach's α) and test-retest reliability (intraclass correlation coefficient, ICC) were pooled using random effects models between settings and languages. RESULTS A total 75 publications reported use of D-12 (n = 35), MDP (n = 37) or both (n = 3), reflecting 16 chronic conditions. Synthesis confirmed two factor structure, internal consistency (Cronbach's α mean, 95% CI: D-12 Total = 0.93, 0.91-0.94; MDP Immediate Perception [IP] = 0.88, 0.85-0.90; MDP Emotional Response [ER] = 0.86, 0.82-0.89) and 14 day test-rest reliability (ICC: D-12 Total = 0.91, 0.88-0.94; MDP IP = 0.85, 0.70-0.93; MDP ER = 0.84, 0.73-0.90) across settings and languages. MCID estimates for clinical interventions ranged between -3 and -6 points (D-12 Total) with small variability in scores over 2 weeks (D-12 Total 2.8 (95% CI: 2.0 to 3.7), MDP-A1 0.8 (0.6 to 1.1) and six months (D-12 Total 2.9 (2.0 to 3.7), MDP-A1 0.8 (0.6 to 1.1)). CONCLUSION D-12 and MDP are widely used, reliable, valid and responsive across various chronic conditions, settings and languages, and could be considered standard instruments for measuring dimensions of breathlessness in international trials.
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Affiliation(s)
- Marie T Williams
- Allied Health and Human Performance, University of South Australia, Adelaide, South Australia, Australia.
| | - Hayley Lewthwaite
- Allied Health and Human Performance, University of South Australia, Adelaide, South Australia, Australia; Department of Kinesiology and Physical Education, McGill University, Montreal, Quebec, Canada; College of Engineering, Science and Environment, School of Environmental & Life Sciences, University of Newcastle, Ourimbah, New South Wales, Australia
| | - Catherine Paquet
- Allied Health and Human Performance, University of South Australia, Adelaide, South Australia, Australia; Faculté des Sciences de l'Administration, Université Laval, Québec (Québec) , Canada
| | - Kylie Johnston
- Allied Health and Human Performance, University of South Australia, Adelaide, South Australia, Australia
| | - Max Olsson
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Respiratory Medicine and Allergology, Lund, Sweden
| | - Letícia Fernandes Belo
- Laboratory of Research in Respiratory Physiotherapy (LFIP), Department of Physiotherapy, State University of Londrina (UEL), Londrina, Brazil
| | - Fabio Pitta
- Laboratory of Research in Respiratory Physiotherapy (LFIP), Department of Physiotherapy, State University of Londrina (UEL), Londrina, Brazil
| | - Capucine Morelot-Panzini
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France; Groupe Hospitalo-Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Pneumologie, Département R3S, Paris, France
| | - Magnus Ekström
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Respiratory Medicine and Allergology, Lund, Sweden
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16
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Kanezaki M, Tamaki A, Terada K, Ebihara S. Linguistic Validation of the Japanese Version of the Multidimensional Dyspnea Profile and Relation to Physical Activity in Patients with COPD. Int J Chron Obstruct Pulmon Dis 2022; 17:223-230. [PMID: 35087271 PMCID: PMC8789226 DOI: 10.2147/copd.s339285] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/24/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose This study aimed to develop a linguistically validated Japanese translation of the multidimensional dyspnea profile (MDP) and assess whether worsening of dyspnea’s sensory and affective domains during exercise had detrimental effects on physical activity in stable outpatients with chronic obstructive pulmonary disease (COPD). Materials and Methods The Japanese version of the MDP was prepared in collaboration with Mapi Research Trust (Lyon, France) after the approval of the developer. Physical activity was assessed using a 3-axis accelerometer. Dyspnea upon exertion was investigated using a 3-minute step test. Results The Japanese version of the MDP was obtained and validated linguistically. Air-hunger was significantly associated with total calories from walking (r = − 0.47, p < 0.05), while anxiety and depression were significantly correlated with both the amount and intensity of physical activity (r = − 0.49, p < 0.05, and r = − 0.46, p < 0.05, respectively). Conclusion The Japanese version of the MDP was suggested to reflect both pulmonary functions, ventilatory response during exercise, and intensity and amount of physical activity in patients with COPD.
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Affiliation(s)
- Masashi Kanezaki
- Department of Physical Therapy, School of Health Sciences, Tokyo International University, Kawagoe, Saitama, 350-1197, Japan
- Correspondence: Masashi Kanezaki Department of Physical Therapy, School of Health Sciences, Tokyo International University, 1-13-1 Matobakita, Kawagoe, Saitama, 350-1197, JapanTel +81-49-232-1111Fax +81-49-232-1119 Email
| | - Akira Tamaki
- Department of Physical Therapy, School of Rehabilitation, Hyogo University of Health Sciences, Kobe, Hyogo, Japan
| | - Kunihiko Terada
- Terada Clinic, Respiratory Medicine and General Practice, Himeji, Hyogo, Japan
| | - Satoru Ebihara
- Department of Rehabilitation Medicine, Graduate School of Medicine, Toho University, Tokyo, Japan
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17
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Abstract
PURPOSE OF REVIEW In patients with advanced chronic obstructive pulmonary disease (COPD), it is challenging to treat breathlessness. In addition, novel palliative interventions are required for multiple perspectives of breathlessness that may still be present after disease-specific therapies. This review provides an overview of the mechanisms and effects of l-menthol on breathlessness by covering the latest relevant papers. RECENT FINDINGS A literature review identified one randomized controlled trial assessing the effect of l-menthol on relieving breathlessness in patients with COPD. It has been reported that the mechanism of relieving breathlessness partly involves stimulation of the trigeminal nerve by the cooling sensation of l-menthol, which gives a cognitive illusion of inspiratory flow perception. The effect of l-menthol on breathlessness caused by exertion has been reported in healthy subjects but not yet in patients with breathlessness. SUMMARY The effect of l-menthol on the sensory-emotional dimensions of laboratory-induced breathlessness in patients with COPD has been described in a clinical trial. Further studies are warranted to investigate its application to inspiratory muscle training and its effects in combination with exercise training.
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Affiliation(s)
- Masashi Kanezaki
- Department of Physical Therapy, School of Health Sciences, Tokyo International University, Kawagoe, Saitama
| | - Kunihiko Terada
- Terada Clinic, Respiratory Medicine and General Practice, Himeji, Hyogo
| | - Satoru Ebihara
- Department of Rehabilitation Medicine, Toho University Graduate School of Medicine, Tokyo, Japan
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18
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Prieur G, Beaumont M, Delorme M, Combret Y, Medrinal C, Hilfiker R, Bonnevie T, Gravier FE, Smondack P, Lamia B, Reychler G. Short-term effects of menthol on walking dyspnoea in patients with COPD: a randomised, single blinded, cross-over study. ERJ Open Res 2021; 7:00450-2021. [PMID: 34708112 PMCID: PMC8542941 DOI: 10.1183/23120541.00450-2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/19/2021] [Indexed: 11/05/2022] Open
Abstract
Chewing menthol gum prior to exercise is a safe, easy-to-implement, low-cost, non-pharmacologic intervention that provides a reduction in dyspnoea in a third of patients and decreases the perception of discomfort during exercise in two-thirds of patients https://bit.ly/3FoFHp1.
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Affiliation(s)
- Guillaume Prieur
- Institut de Recherche Expérimentale et Clinique (IREC), Pôle de Pneumologie, ORL and Dermatologie, Groupe de Recherche en Kinésithérapie Respiratoire, Université Catholique de Louvain, Brussels, Belgium.,Normandie Univ, UNIROUEN, EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,Groupe Hospitalier du Havre, Pulmonology Dept and Pulmonary Rehabilitation Dept, Montivilliers, France
| | - Marc Beaumont
- Pulmonary Rehabilitation Dept, CH des Pays de Morlaix, Kersaint Gilly, Morlaix, France.,EA3878 (GETBO) CIC INSERM 1412, European University of Occidental Brittany, Brest, France
| | | | - Yann Combret
- Institut de Recherche Expérimentale et Clinique (IREC), Pôle de Pneumologie, ORL and Dermatologie, Groupe de Recherche en Kinésithérapie Respiratoire, Université Catholique de Louvain, Brussels, Belgium.,Groupe Hospitalier du Havre, Pulmonology Dept and Pulmonary Rehabilitation Dept, Montivilliers, France
| | - Clement Medrinal
- Groupe Hospitalier du Havre, Pulmonology Dept and Pulmonary Rehabilitation Dept, Montivilliers, France.,Université Paris-Saclay, UVSQ, ERPHAN, Versailles, France
| | - Roger Hilfiker
- University of Applied Sciences and Arts Western Switzerland Valais (HES-SO Valais-Wallis), Physiotherapy, Sierre, Switzerland
| | - Tristan Bonnevie
- Normandie Univ, UNIROUEN, EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,ADIR Association, Rouen University Hospital, Rouen, France
| | - Francis-Edouard Gravier
- Normandie Univ, UNIROUEN, EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,ADIR Association, Rouen University Hospital, Rouen, France
| | | | - Bouchra Lamia
- Normandie Univ, UNIROUEN, EA3830-GRHV, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France.,Groupe Hospitalier du Havre, Pulmonology Dept and Pulmonary Rehabilitation Dept, Montivilliers, France
| | - Gregory Reychler
- Institut de Recherche Expérimentale et Clinique (IREC), Pôle de Pneumologie, ORL and Dermatologie, Groupe de Recherche en Kinésithérapie Respiratoire, Université Catholique de Louvain, Brussels, Belgium.,Service de Pneumologie, Cliniques Universitaires Saint-Luc, Brussels, Belgium
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19
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Ebihara T, Yamasaki M, Kozaki K, Ebihara S. Medical aromatherapy in geriatric syndrome. Geriatr Gerontol Int 2021; 21:377-385. [PMID: 33789361 DOI: 10.1111/ggi.14157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 03/03/2021] [Accepted: 03/15/2021] [Indexed: 12/15/2022]
Abstract
Geriatric syndromes are symptoms and signs, such as falls, incontinence, delirium, pressure ulcers, dysphagia and so on, that often threaten the independence of older adults, rather than the disease itself. Although the syndromes are very common in older people, it is difficult to treat those by modern medicine due to their complexity. To mitigate the intractable geriatric symptoms, we review the efficacy of aromatherapy, especially for dysphagia, dyspnea, cognitive dysfunction and falls in geriatric syndrome. Olfactory stimulation using a volatile black pepper oil on institutional residents improved the swallowing reflex, which is a crucial risk factor of aspiration pneumonia. Brain imaging study showed that olfactory stimulation using volatile black pepper oil activated cerebral regions of the anterior cingulate and the insular cortex, which play a role in controlling appetite and swallowing. Also, aromatherapy with volatile l-menthol decreased the sense of dyspnea and improved the efficacy of exercise therapy. The fragrance of the combination of rosemary and lemon oils in the morning, and the combination of lavender and orange oils in the night-time were reported to improve cognition and behavioural and psychological symptoms of dementia, respectively. Also, the combination of lavender and lemon balm oils was reported to be effective for irritability-related agitation in older adults. Furthermore, aromatherapy with lavender fragrance could improve both static and dynamic balance, resulting in a reduction in the number of fallers and the incidence rate in older people. Thus, aromatherapy is a promising remedy for geriatric syndrome. Geriatr Gerontol Int 2021; 21: 377-385.
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Affiliation(s)
- Takae Ebihara
- Department of Geriatric Medicine, Graduate School of Medicine, Kyorin University School of Medicine, Tokyo, Japan
| | - Miyako Yamasaki
- National Health Insurance Kuzumaki Hospital, Kuzumaki, Iwate, Japan
| | - Koichi Kozaki
- Department of Geriatric Medicine, Graduate School of Medicine, Kyorin University School of Medicine, Tokyo, Japan
| | - Satoru Ebihara
- Department of Rehabilitation Medicine, Toho University Graduate School of Medicine, Tokyo, Japan
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20
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Abstract
This study describes the research and healthcare priorities of individuals living with COPD. On an online survey, individuals living with COPD assigned a percentage of funding to 22 research priorities and a percentage of time spent communicating with a healthcare provider to 24 healthcare priorities, indicating which topics were most important. For each research and healthcare priority, we examined the selection frequency of the priority and used chi-square analyses to examine differences in priority selection by quartiles of airflow obstruction (percent predicted forced expiratory volume in 1-sec (FEV1%predicted)) and breathlessness burden and exacerbation risk. Based on participants' responses (N = 148, 47% women; Mean ± Standard Deviation age = 68 ± 9 yrs) relief of breathlessness was the most often selected research (76% of respondents) and healthcare priority (61% of respondents). It was selected most often, regardless of disease severity or breathlessness burden and exacerbation risk. We found differences for disease severity and breathlessness burden and exacerbation risk in some research priorities (e.g., to improve the maximal amount of exercise of adults living with COPD in and out of the home (χ2(3) = 9.97, Cramer's V =.28) and healthcare priorities (e.g., increase your ability to exercise (χ2(3) = 9.72, Cramer's V =.27)). This study provides empirical evidence that relief of breathlessness is a top research and healthcare priority for individuals living with COPD. Future healthcare and research activities should align with the priorities of individuals with COPD to improve their care by minimizing disease/symptom burden and optimizing health-related quality of life.
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Affiliation(s)
- Emilie Michalovic
- Department of Kinesiology and Physical Education, McGill University, Montreal, QC, Canada.,McGill Research Centre for Physical Activity and Health, Faculty of Education, McGill University, Montreal, QC, Canada.,Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal, Montreal, QC, Canada
| | - Shane N Sweet
- Department of Kinesiology and Physical Education, McGill University, Montreal, QC, Canada.,McGill Research Centre for Physical Activity and Health, Faculty of Education, McGill University, Montreal, QC, Canada.,Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal, Montreal, QC, Canada
| | - Dennis Jensen
- Department of Kinesiology and Physical Education, McGill University, Montreal, QC, Canada.,McGill Research Centre for Physical Activity and Health, Faculty of Education, McGill University, Montreal, QC, Canada.,Translational Research in Respiratory Diseases Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
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21
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Kanezaki M, Terada K, Tanabe N, Shima H, Hamakawa Y, Sato S. Effects of Sarcopenia on Ventilatory Behavior and the Multidimensional Nature of Dyspnea in Patients With Chronic Obstructive Pulmonary Disease. J Am Med Dir Assoc 2021; 22:827-833. [PMID: 33667425 DOI: 10.1016/j.jamda.2021.01.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/20/2021] [Accepted: 01/26/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVES This study tested the hypothesis that sarcopenia, a common extrapulmonary feature of chronic obstructive pulmonary disease (COPD), can affect ventilatory behavior, and worsen the multidimensional nature of dyspnea in patients with COPD. DESIGN Cross-sectional survey study. SETTING and Participants: Stable outpatients with COPD encountered in general practice and respiratory clinic. METHOD Sarcopenia was diagnosed according to an appendicular skeletal muscle mass index based on measurements of electrical impedance and handgrip strength. Exertional dyspnea was tested using a 3-minute Step Test and a 6-minute Walk Test. The dimensions of dyspnea were assessed by a multidimensional dyspnea profile. RESULTS Of 60 stable patients with COPD, 16 met the criteria for sarcopenia. During the 3-minute Step Test, minute ventilation as a proportion of exercise time, tidal volume as a proportion of inspiratory capacity, the change in inspiratory capacity, and ventilation as a proportion of maximal voluntary ventilation did not differ between patients with and without sarcopenia. Patients with sarcopenia exhibited lower evolution of tidal volume, higher evolution of respiratory frequency versus ventilation and breathing discomfort on the 3-minute Step Test, as well as increased physical breathing effort on the 6-minute Walk Test, compared with those without sarcopenia. In a multivariable model adjusted using inverse probability weighting, sarcopenia was independently associated with breathing discomfort during the 3-minute Step Test and physical breathing effort during the 6-minute Walk Test. CONCLUSIONS AND IMPLICATIONS Sarcopenia may be associated with shallow breathing and diverse sensory and affective components of exertional dyspnea in patients with COPD. The study indicates that improvement of the rapid breathing pattern may offer unique ways to alleviate dyspnea in older patients with COPD and sarcopenia.
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Affiliation(s)
- Masashi Kanezaki
- Department of Physical Therapy, Faculty of Health Care Sciences, Himeji Dokkyo University, Himeji, Hyogo, Japan.
| | - Kunihiko Terada
- Terada Clinic, Respiratory Medicine and General Practice, Himeji, Hyogo, Japan
| | - Naoya Tanabe
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan
| | - Hiroshi Shima
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan
| | - Yoko Hamakawa
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan
| | - Susumu Sato
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Shogoin, Sakyo-ku, Kyoto, Japan
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Hopkins SR, Dominelli PB, Davis CK, Guenette JA, Luks AM, Molgat-Seon Y, Sá RC, Sheel AW, Swenson ER, Stickland MK. Face Masks and the Cardiorespiratory Response to Physical Activity in Health and Disease. Ann Am Thorac Soc 2021; 18:399-407. [PMID: 33196294 PMCID: PMC7919154 DOI: 10.1513/annalsats.202008-990cme] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 11/16/2020] [Indexed: 11/21/2022] Open
Abstract
To minimize transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the novel coronavirus responsible for coronavirus disease (COVID-19), the U.S. Centers for Disease Control and Prevention and the World Health Organization recommend wearing face masks in public. Some have expressed concern that these may affect the cardiopulmonary system by increasing the work of breathing, altering pulmonary gas exchange and increasing dyspnea, especially during physical activity. These concerns have been derived largely from studies evaluating devices intentionally designed to severely affect respiratory mechanics and gas exchange. We review the literature on the effects of various face masks and respirators on the respiratory system during physical activity using data from several models: cloth face coverings and surgical masks, N95 respirators, industrial respirators, and applied highly resistive or high-dead space respiratory loads. Overall, the available data suggest that although dyspnea may be increased and alter perceived effort with activity, the effects on work of breathing, blood gases, and other physiological parameters imposed by face masks during physical activity are small, often too small to be detected, even during very heavy exercise. There is no current evidence to support sex-based or age-based differences in the physiological responses to exercise while wearing a face mask. Although the available data suggest that negative effects of using cloth or surgical face masks during physical activity in healthy individuals are negligible and unlikely to impact exercise tolerance significantly, for some individuals with severe cardiopulmonary disease, any added resistance and/or minor changes in blood gases may evoke considerably more dyspnea and, thus, affect exercise capacity.
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Affiliation(s)
| | - Paolo B. Dominelli
- Department of Pediatrics, University of California, San Diego, California
| | | | - Jordan A. Guenette
- Centre for Heart Lung Innovation
- Department of Physical Therapy, Faculty of Medicine, and
- School of Kinesiology, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Andrew M. Luks
- St. Paul’s Hospital, Vancouver, British Columbia, Canada
| | - Yannick Molgat-Seon
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, Washington
| | | | - A. William Sheel
- Department of Kinesiology and Applied Health, University of Winnipeg, Winnipeg, Manitoba, Canada
| | - Erik R. Swenson
- St. Paul’s Hospital, Vancouver, British Columbia, Canada
- Medical Service, Veterans Affairs Puget Sound Health Care System, Seattle, Washington
| | - Michael K. Stickland
- Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; and
- G. F. MacDonald Centre for Lung Health (Covenant Health) and
- Medicine Strategic Clinical Network, Alberta Health Services, Edmonton, Alberta, Canada
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24
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Breathlessness Isn't Cool, But Its Treatment Can Be. Chest 2020; 157:1401-1402. [PMID: 32505299 DOI: 10.1016/j.chest.2020.02.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 02/29/2020] [Indexed: 11/20/2022] Open
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