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Skjevling L, Goll R, Hanssen HM, Johnsen PH. Faecal microbiota transplantation (FMT) in Norwegian outpatients with mild to severe myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): protocol for a 12-month randomised double-blind placebo-controlled trial. BMJ Open 2024; 14:e073275. [PMID: 38858151 PMCID: PMC11168185 DOI: 10.1136/bmjopen-2023-073275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 03/11/2024] [Indexed: 06/12/2024] Open
Abstract
INTRODUCTION The observed alteration of the intestinal microbiota in patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) and the effect of transferring a healthy gut flora from a faecal donor using a faecal microbiota transplantation (FMT) will be explored in this trial. METHODS AND ANALYSIS This is a protocol for a randomised, double-blind, placebo-controlled, parallel-group, single-centre trial, with 12 months follow-up. 80 participants will be included and randomised (1:1:2) to either donor FMT (from two different donors) or placebo (autologous FMT). Participants will be included by the International Clinical Criteria for ME/CFS. The clinical measures of ME/CFS and disease activity include Modified DePaul Questionnaire, Fatigue Severity Scale (FSS), Hospital Anxiety and Depression Scale (HADS), 36-Item Short Form Health Survey (SF-36), ROMA IV criteria, Food Frequency Questionnaire, Repeatable Battery for the Assessment of Neuropsychological Status, heart rate variability testing and reports on the use of antibiotics and food supplements, as well as biobanking of blood, urine and faeces.The primary endpoint is proportion with treatment success in FSS score in donor versus autologous FMT group 3 months after treatment. Treatment success is defined as an FSS improvement of more than 1.2 points from baseline at 3 months after treatment. Adverse events will be registered throughout the study. ETHICS AND DISSEMINATION The Regional Committee for Medical Research Ethics Northern Norway has approved the study. The study has commenced in May 2019. Findings will be disseminated in international peer-reviewed journal(s), submitted to relevant conferences, and trial participants will be informed via phone calls. TRIAL REGISTRATION NUMBER NCT03691987.
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Affiliation(s)
- Linn Skjevling
- UiT The Arctic University of Norway, Tromso, Troms, Norway
- Medical Department, University Hospital of North Norway, Harstad, Troms, Norway
| | - Rasmus Goll
- UiT The Arctic University of Norway, Tromso, Troms, Norway
- Department of Gastroenterology, University Hospital of North Norway, Tromso, Troms, Norway
| | - Hege Marie Hanssen
- UiT The Arctic University of Norway, Tromso, Troms, Norway
- Medical Department, University Hospital of North Norway, Harstad, Troms, Norway
| | - Peter Holger Johnsen
- UiT The Arctic University of Norway, Tromso, Troms, Norway
- Medical Department, University Hospital of North Norway, Harstad, Troms, Norway
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Luo X, Wang R, Zhou Y, Xie W. The relationship between emotional disorders and heart rate variability: A Mendelian randomization study. PLoS One 2024; 19:e0298998. [PMID: 38451975 PMCID: PMC10919610 DOI: 10.1371/journal.pone.0298998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 02/04/2024] [Indexed: 03/09/2024] Open
Abstract
OBJECTIVE Previous studies have shown that emotional disorders are negatively associated with heart rate variability (HRV), but the potential causal relationship between genetic susceptibility to emotional disorders and HRV remains unclear. We aimed to perform a Mendelian randomization (MR) study to investigate the potential association between emotional disorders and HRV. METHODS The data used for this study were obtained from publicly available genome-wide association study datasets. Five models, including the inverse variance weighted model (IVW), the weighted median estimation model (WME), the weighted model-based method (WM), the simple model (SM) and the MR-Egger regression model (MER), were utilized for MR. The leave-one-out sensitivity test, MR pleiotropy residual sum and outlier test (MR-PRESSO) and Cochran's Q test were used to confirm heterogeneity and pleiotropy. RESULTS MR analysis revealed that genetic susceptibility to broad depression was negatively correlated with HRV (pvRSA/HF) (OR = 0.380, 95% CI 0.146-0.992; p = 0.048). However, genetic susceptibility to irritability was positively correlated with HRV (pvRSA/HF, SDNN) (OR = 2.017, 95% CI 1.152-3.534, p = 0.008) (OR = 1.154, 95% CI 1.000-1.331, p = 0.044). Genetic susceptibility to anxiety was positively correlated with HRV (RMSSD) (OR = 2.106, 95% CI 1.032-4.299; p = 0.041). No significant directional pleiotropy or heterogeneity was detected. The accuracy and robustness of these findings were confirmed through a sensitivity analysis. CONCLUSIONS Our MR study provides genetic support for the causal effects of broad depression, irritable mood, and anxiety on HRV.
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Affiliation(s)
- Xu Luo
- College of Clinical Medicine, University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Rui Wang
- College of Clinical Medicine, University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - YunXiang Zhou
- College of Clinical Medicine, University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Wen Xie
- College of Clinical Medicine, University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- Department of Cardiology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
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Penha LMB, Pontes-Silva A, Santos-de-Araújo AD, Camargo PF, Pires FDO, Fidelis-de-Paula-Gomes CA, Mostarda CT, Bassi-Dibai D, Dibai-Filho AV. Reliability of the Heart Rate Variability Registered Through Polar Cardio Frequency Meter in Individuals With Chronic Low Back Pain. J Chiropr Med 2023; 22:180-188. [PMID: 37644996 PMCID: PMC10461136 DOI: 10.1016/j.jcm.2023.03.007] [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: 03/15/2022] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 08/31/2023] Open
Abstract
Objective The purpose of this study was to analyze the intra- and inter-examiner reliability of the analysis of heart rate variability (HRV) captured by a Polar cardio frequency meter in individuals with chronic nonspecific low back pain. Methods The study included 35 individuals with nonspecific low back pain, both sexes, aged 18 to 45. We used a Polar V800 cardio frequency meter to capture HRV in individuals in different positions, and we calculated the reliability through the intraclass correlation coefficient (ICC). Results Regarding intra-examiner reliability, we found excellent reliability of HRV analysis in the supine position (ICC ranging from 0.89 to 1.00) and in the standing position (ICC ranging from 0.95 to 0.99). In addition, for inter-examiner reliability, we found substantial to excellent reliability of the HRV analysis in the supine position (ICC ranging from 0.76 to 0.98) and moderate to excellent reliability in the standing position (ICC ranging from 0.73 to 0.99). Conclusion The HRV analysis captured by a Polar cardio frequency meter presented adequate reliability when considering different times and different examiners.
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Affiliation(s)
| | - André Pontes-Silva
- Postgraduate Program in Adult Health, Federal University of Maranhão, São Luís, Maranhão, Brazil
| | | | - Patrícia Faria Camargo
- Postgraduate Program in Physical Therapy, Federal University of São Carlos, São Carlos, São Paulo, Brazil
| | | | | | | | - Daniela Bassi-Dibai
- Postgraduate Program in Programs Management and Health Services, Ceuma University, São Luís, Maranhão, Brazil
| | - Almir Vieira Dibai-Filho
- Postgraduate Program in Adult Health, Federal University of Maranhão, São Luís, Maranhão, Brazil
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Li X, Deng X, Huang Z, Kowark A, Coburn M, Zhang G, Duan X. Relationship between Heart Rate Variability and Postoperative Cognitive Dysfunction in Elderly Patients. Am J Health Behav 2023; 47:65-74. [PMID: 36945090 DOI: 10.5993/ajhb.47.1.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objectives: Postoperative cognitive dysfunction (POCD) is objectively measurable after anesthesia and surgery. Lower heart rate variability (HRV) is associated with poorer cognitive performance, but the relationship between HRV and POCD remains unclear. Methods: Elderly patients who underwent total hip replacement under general anesthesia from the Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University were enrolled. Neuropsychological tests, standard deviation of the interbeat interval (SDNN, a parameter of HRV), and plasma concentrations of glial cell line-derived neurotrophic factors (GDNF) were performed one day before (T-1) and 7 days after (T7) surgery. Results: POCD occurred in 35% of patients on 7 days after surgery. Lower SDNN(T7) (OR=.91) and longer surgery time (OR=1.33) were associated with POCD. Compared with patients without POCD, there was higher variation SDNN (Δ SDNN) and plasma GDNF (ΔGDNF) in those with POCD from T-1 to T7 period. ΔGDNF is positively correlated with ΔSDNN (r = .61, p<.001). Conclusions: Lower SDNN (T7) was associated with POCD and might be used as a warning indicator for the risk of POCD.
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Affiliation(s)
- Xuelian Li
- Associate Professor, Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Anesthesiology and Critical Care Medicine Key Laboratory of Luzhou, Southwest Medical University, Department of Anesthesiology, Southwest Medical University, Luzhou, China
| | - Xiren Deng
- Associate Professor, Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Anesthesiology and Critical Care Medicine Key Laboratory of Luzhou, Southwest Medical University, Department of Anesthesiology, Southwest Medical University, Luzhou, China
| | - Zhiwei Huang
- Professor, School of Medical Information and Engineering, Southwest Medical University, Luzhou, China
| | - Ana Kowark
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Mark Coburn
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Bonn, Bonn, Germany
| | - Guanpeng Zhang
- Department of Electrocardiogram, The Affiliated Hospital of Southwest Medical University, Luzhou, China;,
| | - Xiaoxia Duan
- Associate Professor, Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Anesthesiology and Critical Care Medicine Key Laboratory of Luzhou, Southwest Medical University, Department of Anesthesiology, Southwest Medical University, Luzhou, China;,
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de Almeida LV, Santos-de-Araújo AD, Cutrim RC, Tavarez RRDJ, Borghi-Silva A, Pereira FHF, Pontes-Silva A, Rêgo AS, Rocha DS, Marinho RS, Dibai-Filho AV, Bassi-Dibai D. Intra- and Interrater Reliability of Short-Term Measurement of Heart Rate Variability on Rest in Individuals Post-COVID-19. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13587. [PMID: 36294172 PMCID: PMC9602575 DOI: 10.3390/ijerph192013587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/17/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Individuals affected by COVID-19 have an alteration in autonomic balance, associated with impaired cardiac parasympathetic modulation and, consequently, a decrease in heart rate variability (HRV). This study examines the inter- and intrarater reliability of HRV) parameters derived from short-term recordings in individuals post-COVID. Sixty-nine participants of both genders post-COVID were included. The RR interval, the time elapsed between two successive R-waves of the QRS signal on the electrocardiogram (RRi), were recorded during a 10 min period in a supine position using a portable heart rate monitor (Polar® V800 model). The data were transferred into Kubios® HRV standard analysis software and analyzed within the stable sessions containing 256 sequential RRi. The intraclass correlation coefficient (ICC) ranged from 0.920 to 1.000 according to the intrarater analysis by Researcher 01 and 0.959 to 0.999 according to the intrarater by Researcher 02. The interrater ICC ranged from 0.912 to 0.998. The coefficient of variation was up to 9.23 for Researcher 01 intrarater analysis, 6.96 for Researcher 02 intrarater analysis and 8.83 for interrater analysis. The measurement of HRV in post-COVID-19 individuals is reliable and presents a small amount of error inherent to the method, supporting its use in the clinical environment and in scientific research.
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Affiliation(s)
- Lucivalda Viegas de Almeida
- Postgraduate Program in Programs Management and Health Services, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Grupo de Pesquisa em Avaliação e Reabilitação Cardiovascular, Respiratória e Metabólica, Universidade Ceuma, São Luís 65075-120, MA, Brazil
| | - Aldair Darlan Santos-de-Araújo
- Department of Physical Therapy, Universidade Federal de São Carlos, São Carlos 13565-905, SP, Brazil
- Cardiopulmonary Physiotherapy Laboratory—LACAP, Universidade Federal de São Carlos, São Carlos 13565-905, SP, Brazil
| | - Rodrigo Costa Cutrim
- Grupo de Pesquisa em Avaliação e Reabilitação Cardiovascular, Respiratória e Metabólica, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Postgraduate Program in Dentistry, Universidade Ceuma, São Luís 65075-120, MA, Brazil
| | | | - Audrey Borghi-Silva
- Department of Physical Therapy, Universidade Federal de São Carlos, São Carlos 13565-905, SP, Brazil
- Cardiopulmonary Physiotherapy Laboratory—LACAP, Universidade Federal de São Carlos, São Carlos 13565-905, SP, Brazil
| | - Fábio Henrique Ferreira Pereira
- Grupo de Pesquisa em Avaliação e Reabilitação Cardiovascular, Respiratória e Metabólica, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Postgraduate Program in Environment, Universidade Ceuma, São Luís 65075-120, MA, Brazil
| | - André Pontes-Silva
- Department of Physical Therapy, Universidade Federal de São Carlos, São Carlos 13565-905, SP, Brazil
| | - Adriana Sousa Rêgo
- Postgraduate Program in Programs Management and Health Services, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Grupo de Pesquisa em Avaliação e Reabilitação Cardiovascular, Respiratória e Metabólica, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Postgraduate Program in Environment, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Department of Physical Therapy, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Postgraduate Program in Adult Health, Universidade Federal do Maranhão, São Luís 65080-805, MA, Brazil
| | - Daniel Santos Rocha
- Grupo de Pesquisa em Avaliação e Reabilitação Cardiovascular, Respiratória e Metabólica, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Department of Physical Therapy, Universidade Ceuma, São Luís 65075-120, MA, Brazil
| | - Renan Shida Marinho
- Department of Physical Therapy, Universidade Federal de São Carlos, São Carlos 13565-905, SP, Brazil
- Cardiopulmonary Physiotherapy Laboratory—LACAP, Universidade Federal de São Carlos, São Carlos 13565-905, SP, Brazil
| | - Almir Vieira Dibai-Filho
- Postgraduate Program in Adult Health, Universidade Federal do Maranhão, São Luís 65080-805, MA, Brazil
- Grupo de Pesquisa em Reabilitação, Exercício e Movimento (REMOVI) Universidade Federal do Maranhão, São Luís 65080-805, MA, Brazil
| | - Daniela Bassi-Dibai
- Postgraduate Program in Programs Management and Health Services, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Grupo de Pesquisa em Avaliação e Reabilitação Cardiovascular, Respiratória e Metabólica, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Postgraduate Program in Dentistry, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Postgraduate Program in Environment, Universidade Ceuma, São Luís 65075-120, MA, Brazil
- Department of Physical Therapy, Universidade Ceuma, São Luís 65075-120, MA, Brazil
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