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Perceptual disorders relating to hearing, smell, somatosensation, taste, touch, and vision commonly impair stroke survivors' ability to interpret sensory information, impacting on their ability to interact with the world. We aimed to identify and summarize the existing evidence for perceptual disorder interventions poststroke and identify evidence gaps. We searched 13 electronic databases including MEDLINE and Embase and Grey literature and performed citation tracking. Two authors independently applied a priori-defined selection criteria; studies involving stroke survivors with perceptual impairments and interventions addressing those impairments were included. We extracted data on study design, population, perceptual disorders, interventions, and outcomes. Data were tabulated and synthesized narratively. Stroke survivors, carers, and clinicians were involved in agreeing definitions and organizing and interpreting data. From 91 869 records, 80 studies were identified (888 adults and 5 children); participant numbers were small (median, 3.5; range, 1-80), with a broad range of stroke types and time points. Primarily focused on vision (34/80, 42.5%) and somatosensation (28/80; 35.0%), included studies were often case reports (36/80; 45.0%) or randomized controlled trials (22/80; 27.5%). Rehabilitation approaches (78/93; 83.9%), primarily aimed to restore function, and were delivered by clinicians (30/78; 38.5%) or technology (28/78; 35.9%; including robotic interventions for somatosensory disorders). Pharmacological (6/93; 6.5%) and noninvasive brain stimulation (7/93; 7.5%) approaches were also evident. Intervention delivery was poorly reported, but most were delivered in hospital settings (56/93; 60.2%). Study outcomes failed to assess the transfer of training to daily life. Interventions for stroke-related perceptual disorders are underresearched, particularly for pediatric populations. Evidence gaps include interventions for disorders of hearing, taste, touch, and smell perception. Future studies must involve key stakeholders and report this fully. Optimization of intervention design, evaluation, and reporting is required, to support the development of effective, acceptable, and implementable interventions. Registration: URL: https://www.crd.york.ac.uk/PROSPERO/; Unique identifier: CRD42019160270.
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Trastornos de la Percepción , Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular , Adulto , Cuidadores , Niño , Humanos , Trastornos de la Percepción/epidemiología , Trastornos de la Percepción/etiología , Trastornos de la Percepción/terapia , Accidente Cerebrovascular/complicaciones , Accidente Cerebrovascular/terapia , SobrevivientesRESUMEN
BACKGROUND: falls and fall-related injuries are common in older adults, have negative effects on functional independence and quality of life and are associated with increased morbidity, mortality and health related costs. Current guidelines are inconsistent, with no up-to-date, globally applicable ones present. OBJECTIVES: to create a set of evidence- and expert consensus-based falls prevention and management recommendations applicable to older adults for use by healthcare and other professionals that consider: (i) a person-centred approach that includes the perspectives of older adults with lived experience, caregivers and other stakeholders; (ii) gaps in previous guidelines; (iii) recent developments in e-health and (iv) implementation across locations with limited access to resources such as low- and middle-income countries. METHODS: a steering committee and a worldwide multidisciplinary group of experts and stakeholders, including older adults, were assembled. Geriatrics and gerontological societies were represented. Using a modified Delphi process, recommendations from 11 topic-specific working groups (WGs), 10 ad-hoc WGs and a WG dealing with the perspectives of older adults were reviewed and refined. The final recommendations were determined by voting. RECOMMENDATIONS: all older adults should be advised on falls prevention and physical activity. Opportunistic case finding for falls risk is recommended for community-dwelling older adults. Those considered at high risk should be offered a comprehensive multifactorial falls risk assessment with a view to co-design and implement personalised multidomain interventions. Other recommendations cover details of assessment and intervention components and combinations, and recommendations for specific settings and populations. CONCLUSIONS: the core set of recommendations provided will require flexible implementation strategies that consider both local context and resources.
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Vida Independiente , Calidad de Vida , Anciano , Cuidadores , Humanos , Medición de RiesgoRESUMEN
BACKGROUND: Perception is the ability to understand information from our senses. It allows us to experience and meaningfully interact with our environment. A stroke may impair perception in up to 70% of stroke survivors, leading to distress, increased dependence on others, and poorer quality of life. Interventions to address perceptual disorders may include assessment and screening, rehabilitation, non-invasive brain stimulation, pharmacological and surgical approaches. OBJECTIVES: To assess the effectiveness of interventions aimed at perceptual disorders after stroke compared to no intervention or control (placebo, standard care, attention control), on measures of performance in activities of daily living. SEARCH METHODS: We searched the trials registers of the Cochrane Stroke Group, CENTRAL, MEDLINE, Embase, and three other databases to August 2021. We also searched trials and research registers, reference lists of studies, handsearched journals, and contacted authors. SELECTION CRITERIA: We included randomised controlled trials (RCTs) of adult stroke survivors with perceptual disorders. We defined perception as the specific mental functions of recognising and interpreting sensory stimuli and included hearing, taste, touch, smell, somatosensation, and vision. Our definition of perception excluded visual field deficits, neglect/inattention, and pain. DATA COLLECTION AND ANALYSIS: One review author assessed titles, with two review authors independently screening abstracts and full-text articles for eligibility. One review author extracted, appraised, and entered data, which were checked by a second author. We assessed risk of bias (ROB) using the ROB-1 tool, and quality of evidence using GRADE. A stakeholder group, comprising stroke survivors, carers, and healthcare professionals, was involved in this review update. MAIN RESULTS: We identified 18 eligible RCTs involving 541 participants. The trials addressed touch (three trials, 70 participants), somatosensory (seven trials, 196 participants) and visual perception disorders (seven trials, 225 participants), with one (50 participants) exploring mixed touch-somatosensory disorders. None addressed stroke-related hearing, taste, or smell perception disorders. All but one examined the effectiveness of rehabilitation interventions; the exception evaluated non-invasive brain stimulation. For our main comparison of active intervention versus no treatment or control, one trial reported our primary outcome of performance in activities of daily living (ADL): Somatosensory disorders: one trial (24 participants) compared an intervention with a control intervention and reported an ADL measure. Touch perception disorder: no trials measuring ADL compared an intervention with no treatment or with a control intervention. Visual perception disorders: no trials measuring ADL compared an intervention with no treatment or control. In addition, six trials reported ADL outcomes in a comparison of active intervention versus active intervention, relating to somatosensation (three trials), touch (one trial) and vision (two trials). AUTHORS' CONCLUSIONS: Following a detailed, systematic search, we identified limited RCT evidence of the effectiveness of interventions for perceptual disorders following stroke. There is insufficient evidence to support or refute the suggestion that perceptual interventions are effective. More high-quality trials of interventions for perceptual disorders in stroke are needed. They should recruit sufficient participant numbers, include a 'usual care' comparison, and measure longer-term functional outcomes, at time points beyond the initial intervention period. People with impaired perception following a stroke should continue to receive neurorehabilitation according to clinical guidelines.
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Trastornos de la Percepción , Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular , Adulto , Humanos , Actividades Cotidianas , Trastornos de la Percepción/etiología , Trastornos de la Percepción/rehabilitación , Accidente Cerebrovascular/complicaciones , Trastornos de la Visión/rehabilitación , Ensayos Clínicos Controlados Aleatorios como AsuntoRESUMEN
BACKGROUND AND PURPOSE: Published reports of intervention in randomized controlled trials are often poorly described. The Template for Intervention Description and Replication (TIDieR) checklist has been recently developed to improve the reporting of interventions. The aim of this article is to describe a therapy intervention used in the stroke rehabilitation trial, "Clinical Efficacy of Functional Strength Training for Upper Limb Motor Recovery Early After Stroke: Neural Correlates and Prognostic Indicators" (FAST-INdICATE), using TIDieR. METHODS: The functional strength training intervention used in the FAST-INdICATE trial was described using TIDieR so that intervention can be replicated by both clinicians, who may implement it in practice, and researchers, who may deliver it in future research. The usefulness of TIDieR in the context of a complex stroke rehabilitation intervention was then discussed. RESULTS AND DISCUSSION: The TIDieR checklist provided a systematic way of describing a treatment intervention used in a clinical trial of stroke rehabilitation. Clarification is needed regarding several aspects of the TIDieR checklist, including in which section to report about the development of the intervention in pilot studies, results of feasibility studies; overlap between training and procedures for assessing fidelity; and where to publish supplementary material so that it remains in the public domain. CONCLUSIONS: TIDieR is a systematic way of reporting the intervention delivered in a clinical trial of a complex intervention such as stroke rehabilitation. This approach may also have value for standardizing intervention in clinical practice.Video abstract available for more insights from the authors (see Supplemental Digital Content 1, http://links.lww.com/JNPT/A131).
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Lista de Verificación/normas , Ensayos Clínicos como Asunto/normas , Paresia/rehabilitación , Informe de Investigación/normas , Entrenamiento de Fuerza , Accidente Cerebrovascular/terapia , Terapia por Ejercicio , Humanos , Paresia/etiología , Paresia/fisiopatología , Accidente Cerebrovascular/complicaciones , Rehabilitación de Accidente Cerebrovascular , Extremidad SuperiorRESUMEN
OBJECTIVE: To explore the effects of Mobilization and Tactile Stimulation (MTS) and patterns of recovery in chronic stroke (>12mo) when upper limb (UL) "performance" has reached a clear plateau. DESIGN: Replicated single-system experimental study with 8 single cases using A-B-A design (baseline-intervention-withdrawal phases); length of baseline randomly determined; intervention phase involved 6 weeks of daily MTS to the contralesional UL. SETTING: Community setting, within participants' place of residence. PARTICIPANTS: Individual stroke survivors (N=8; male-to-female ratio, 3:1; age range, 49-76y; 4 with left hemiplegia, 4 with right hemiplegia) discharged from ongoing therapy, more than 1 year post stroke (range, 14-48mo). Clinical presentations were varied across the sample. INTERVENTIONS: Participants received up to 1 hour of daily (Monday to Friday) treatment with MTS to the UL for 6 weeks during the intervention (B) phase. MAIN OUTCOME MEASURES: Motor function (Action Research Arm Test [ARAT]) and motor impairment (Motricity Index [MI] arm section) of the UL. RESULTS: UL performance was stable during baseline for all participants. On visual analysis, improvements in motor impairment were seen in all participants, and clinically significant improvements in motor function were seen in 4 of 8 participants during the intervention phase. Latency between onset of intervention and improvement ranged from 5 to 31 days (ARAT) and from 0 to 28 days (MI). Improvements in performance were maintained on withdrawal of the intervention. Randomization tests were not significant. CONCLUSIONS: MTS appears to improve UL motor impairment and functional activity many months, even years, after stroke onset. Improvement can be immediate, but more often there is latency between the start of intervention and improvement; recovery can be distal to proximal.
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Hemiplejía/rehabilitación , Manipulaciones Musculoesqueléticas , Accidente Cerebrovascular/fisiopatología , Extremidad Superior/fisiopatología , Anciano , Estudios de Cohortes , Femenino , Fuerza de la Mano/fisiología , Hemiplejía/etiología , Hemiplejía/fisiopatología , Humanos , Masculino , Persona de Mediana Edad , Destreza Motora/fisiología , Estimulación Física , Recuperación de la Función/fisiología , Accidente Cerebrovascular/complicaciones , Rehabilitación de Accidente Cerebrovascular , Tacto/fisiología , Resultado del TratamientoRESUMEN
Prevalence is a 1-time "snapshot" of cases present on a specific date, and incidence measures the new cases of a disease or condition in a given period. This article discusses prevalence and incidence and gives practical tips for wound care practitioners who plan and conduct prevalence/incidence audits.
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Enfermeras Practicantes , Úlcera Cutánea/diagnóstico , Úlcera Cutánea/epidemiología , Humanos , Incidencia , PrevalenciaRESUMEN
OBJECTIVE: The objective of this study was to examine the effectiveness of 2 products on venous ulcer periwound skin. DESIGN: This was a descriptive comparative study. SETTING: An outpatient wound care clinic in a rural Midwestern area of the United States. PARTICIPANTS: Participants included a retrospective group of 50 patients and a prospective group of 28 patients. INTERVENTION: The intervention compared the experimental product (Remedy Nutrashield; Medline Industries, Mundelein, Illinois) versus Cavilon Moisturizing Lotion (3M, St Paul, Minnesota). OUTCOME MEASURES: The mean outcome measures were a decrease in periwound and ulcer size. MAIN RESULTS: For the periwound size, the estimated rates of change were as follows: 0.092 (SE, 0.021) cm/d and -0.026 (SE, 0.014) cm/d for products B and A groups, respectively. The decrease for the experimental group was significantly greater than the attenuated decrease for the retrospective cases (t297 = -2.57, P = .01), and the decrease for product B group was also significantly different from zero (t76 = -4.34, P < .0001). For the ulcer size model, the estimated rates of change were -0.272 (SE, 0.102) cm/d and -0.130 (SE, 0.067) cm/d for the experimental and retrospective groups, respectively. The rate for the experimental group was significantly less than zero (t76 = -2.67, P = .009), but there was no significant difference between prospective and retrospective cases in the rates of reduction in ulcer size (t308 = -1.16, P = .25). CONCLUSION: The results of this study illustrate how the integrity of the periwound skin may be an important determinant in decreasing periwound and ulcer size.
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Fármacos Dermatológicos/uso terapéutico , Crema para la Piel/uso terapéutico , Úlcera Varicosa/tratamiento farmacológico , Úlcera Varicosa/patología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Satisfacción del Paciente , Estudios Prospectivos , Estudios Retrospectivos , Resultado del Tratamiento , Cicatrización de HeridasRESUMEN
PURPOSE: Forty percent of stroke survivors have a persistent lack of function in the upper limb, causing significant disability. Most personal-care tasks and meaningful activities require bi-manual function of both upper limbs. However, lower-limb mobility is often viewed as the priority in stroke services. Perspectives of stroke survivors on priorities for upper-limb recovery and therapy have not been investigated in detail. Therefore, this study aimed to explore their views. MATERIALS AND METHODS: Thirteen stroke survivors each engaged in up to four semi-structured interviews over 18 months. A phenomenological approach guided the research. RESULTS: Three themes were identified. Priorities change on coming home: recovery of walking is a priority early after stroke but upper-limb recovery becomes equally important over time, particularly once living at home. Limited therapy services: therapy has a short duration, prioritizes lower-limb mobility, and is short-lived in the community; people feel abandoned by services. Active partners in recovery: stroke survivors want intermittent access to review and advice so they can be active partners with therapists to manage their upper-limb recovery. CONCLUSION: Therapy services should recognize stroke survivors' changing priorities and work with them as active partners in upper-limb recovery. Intermittent access to review and advice should be included in service design.Implications for rehabilitationStroke survivors' priorities may change over time from recovery of walking toward upper-limb recovery.Post-stroke services can be perceived as insufficient to meet the needs of stroke survivors who want to participate actively in rehabilitation of their upper limb.Stroke survivors may prefer services that are more flexible to provide regular review of their progress, access to guidance and support to self-manage their recovery.
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Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular , Humanos , Actividades Cotidianas , Sobrevivientes , Extremidad SuperiorRESUMEN
This systematic review's purpose was to evaluate the effectiveness of lower-limb and foot somatosensory stimulation to improve balance and gait post-stroke. PRISMA reporting guidelines were followed. Included studies: randomized controlled trials (RCTs), published in English with ethical approval statement. Studies of conditions other than stroke, functional electrical stimulation, and interventions eliciting muscle contraction, were excluded. AgeLine, AMED, CINAHL PLUS, EMBASE, EMCARE MEDLINE, PEDro, PsycARTICLES, PsycINFO, SPORTDiscus, Web of Science and Cochrane central register of controlled trials were searched from 1 January 2002 to 31 March 2022. Two authors independently screened results, extracted data and assessed study quality using Cochrane Risk of Bias 2 tool; 16 RCTs (n = 638) were included. Four studies showed a medium or large standardized between-group effect size (Cohen's d) in favor of somatosensory stimulation, in relation to: customized insoles (d = 0.527), taping (d = 0.687), and electrical stimulation (two studies: d = 0.690 and d = 1.984). Although limited by study quality and heterogeneity of interventions and outcomes, with only one study's results statistically significant, several interventions showed potential for benefit, exceeding the minimally important difference for gait speed. Further research with larger trials is required. This unfunded systematic review was registered with PROSPERO (number CRD42022321199).
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Background: Breastfeeding has various benefits for infants and mothers. However, if not performed in the correct posture, prolonged breastfeeding could cause musculoskeletal-related symptoms such as shoulder, neck, and upper back pain. In Jordan, nursing mothers do not have access to a breastfeeding midwifery team, a breastfeeding dietician, or a breastfeeding nurse for advice and education. The primary aim of this study was to explore nursing mothers' experiences of breastfeeding-related musculoskeletal pain; secondary aims were to explore nursing mothers' awareness of recommended breastfeeding postures and their experience of education and advice about breastfeeding postures. Methods: A cross-sectional mixed methods study was conducted with nursing mothers in Jordan who have breastfed their babies for 6 months or more following normal delivery, using an online survey questionnaire and semi-structured interviews. Participants were recruited through general practitioner clinics. Results: Four hundred ninety-three nursing mothers submitted the online questionnaire, and 12 interviews were completed. Nursing mothers reported experiencing nonspecific pain in lower back, neck, shoulder, and hand, attributed to breastfeeding. Pain in these joints affected mood, sleep, working ability, and quality of life by limiting activities of daily living. Findings showed that the majority of Jordanian nursing mothers did not receive education about safe or optimal breastfeeding positioning from health professionals. Conclusions: Nursing mothers in Jordan are not receiving appropriate education or advice about optimal postures for breastfeeding and have reported experiencing musculoskeletal pain, attributed to breastfeeding, that interferes with activities of daily living and affects quality of life. Postural education and advice should be provided to nursing mothers to prevent or avoid development of musculoskeletal pain.
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Lactancia Materna , Dolor Musculoesquelético , Lactante , Femenino , Humanos , Dolor Musculoesquelético/etiología , Estudios Transversales , Calidad de Vida , Actividades Cotidianas , Madres , PosturaRESUMEN
BACKGROUND: Stroke can bring about a profound disruption to people's lives, but what is less understood is the effect that specific dysfunctions can have. The aim of this study was to explore stroke survivors' experiences of upper-limb dysfunction over time. METHODS: 13 adult stroke survivors engaged in a series of up to four semi-structured interviews over an 18-month period after stroke. Data were interpreted through a method based on framework analysis. An interpretive phenomenological approach guided the research. RESULTS: Upper-limb dysfunction brought substantial challenges for people, identified in a main theme of an altered way of life. Subordinate themes that contributed to this alteration were challenges in personal care, participating in meaningful and valued activities, and managing life roles and relationships. The second main theme was the disrupted self, with subordinate themes of feeling devalued, disrupted self-image and changes in identity. CONCLUSION: The impact of upper-limb dysfunction on people's lives after stroke should be understood and acknowledged by rehabilitation professionals. Restoring some functional upper-limb activity could play an important role in enabling a person to regain a meaningful life and a coherent sense of self after stroke.IMPLICATIONS FOR REHABILITATIONUpper-limb dysfunction after stroke, and the loss of bimanual hand function, can profoundly alter a person's life, rendering them unable to manage simple tasks of personal care, participate in valued activities and fulfil important life roles.These functional and social limitations can then disrupt their sense of self, with feelings of low self-worth, and changes in self-image and identity.It is important that these changes in stroke survivors' lives are acknowledged and understood by rehabilitation professionals. More prolonged periods of therapy for recovery of upper-limb function, or for developing compensatory strategies, should be considered so that people can regain some meaning in life and maintain a coherent sense of self.
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Rehabilitación de Accidente Cerebrovascular , Accidente Cerebrovascular , Adulto , Humanos , Autocuidado , Accidente Cerebrovascular/complicaciones , Sobrevivientes , Extremidad SuperiorRESUMEN
BACKGROUND: Patient and public involvement (PPI) in research has increased steadily over the last two decades and is now both expected and appropriately resourced by many funding bodies, including the National Institute for Health Research (NIHR). However, PPI in research occurs in many different capacities and numerous frameworks exist for reporting or appraising patient involvement activities. The aim of this article is to describe processes involving PPI contributions to an NIHR-funded mixed-methods feasibility study (MoTaStim-Foot). Details of PPI advisors' input, from initial identification and prioritisation of research ideas, to research delivery and dissemination, are discussed. METHODS: Extensive PPI for MoTaStim-Foot is reported, with consideration of Research Design Service (RDS) advice for PPI for research, involving identifying and prioritising: design; grant proposal development; undertaking/managing research; analysing and interpreting; dissemination; implementation; monitoring and evaluation. Two PPI workshops were undertaken; success in meeting UK standards for public involvement was audited against specific success criteria by two researchers, with discussion and consideration regarding how well our PPI achieved inclusive opportunities, working together, support and learning, governance, communications and impact. How PPI can be improved for future trials was also considered. Although the advantages of PPI for researchers were considered, the benefits for PPI advisors were also analysed. RESULTS: UK standards for public involvement were achieved, along with seven relevant research processes suggested by the RDS. PPI advisor contributions: informed study design; contributed to successful funding; enhanced trial delivery by informing participant information sheets and daily diaries; added value through undertaking note-taker roles in focus groups and helping to analyse focus group transcripts; and assisted in dissemination. However, benefits were mutual with PPI advisors reporting feeling valued and respected, a sense of pride with renewed confidence and purpose in life. CONCLUSIONS: Importance and value of PPI, to researchers and patient advisors, have been highlighted, reinforcing the benefits of working in partnership with PPI advisors. Trial registration ISRCTN 13676183; Central Portfolio Management System ID 30449. Registered 02/01/2015, https://www.isrctn.com/ISRCTN13676183 .
This article reports and analyses our public involvement in the research processes for a study funded by the National Institute for Health Research, the MoTaStim-Foot feasibility study. MoTaStim-Foot explored whether it was feasible to deliver treatments to help people feel their foot better after stroke. The results of this study have been published elsewhere (1). Patient and Public Involvement (PPI) advisors played an important role. They worked voluntarily, actively advising the research team; the term 'PPI advisor' is used within this article, following consultation with our PPI advisors. They were involved during idea generation and discussions about whether the study was important to pursue. In addition, they advised the research team during the study setup helping to write the plain English summary, the participant information sheets and advised on other research activities. Following relevant training, PPI advisors were involved in delivering the research including note-taking during focus groups. One PPI advisor also helped analyse the focus group transcripts and attended the UK Stroke Forum to present the results of the study. Reflecting upon the impact of the PPI advisors' contributions to the MoTaStim-Foot study has evidenced that not only was there great benefit to the research team and process, but our PPI advisors gained satisfaction from being involved in the research, planning, design and delivery. It made them all feel valued and respected and helped one of them find a renewed purpose in life. It is important to understand there can be mutual benefit from PPI advisors' contributions to research.
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Background: Somatosensory stimulation of the lower extremity could improve motor recovery and walking post-stroke. This pilot study investigated the feasibility of a subsequent randomized controlled trial (RCT) to determine whether task-specific gait training is more effective following either (a) intensive hands-on somatosensory stimulation or (b) wearing textured insoles. Objectives: Determine recruitment and attrition rates, adherence to intervention, acceptability and viability of interventions and outcome measures, and estimate variance of outcome data to inform sample size for a subsequent RCT. Methods: Design: randomized, single-blinded, mixed-methods pilot study. Setting: In-patient rehabilitation ward and community. Participants: n = 34, 18+years, 42-112 days following anterior or posterior circulation stroke, able to follow simple commands, able to walk independently pre-stroke, and providing informed consent. Intervention: Twenty 30-min sessions of task-specific gait training (TSGT) (delivered over 6 weeks) in addition to either: (a) 30-60 min mobilization and tactile stimulation (MTS); or (b) unlimited textured insole (TI) wearing. Outcomes: Ankle range of movement (electrogoniometer), touch-pressure sensory thresholds (Semmes Weinstein Monofilaments), motor impairment (Lower Extremity Motricity Index), walking ability and speed (Functional Ambulation Category, 5-m walk test, pressure insoles) and function (modified Rivermead Mobility Index), measured before randomization, post-intervention, and 1-month thereafter (follow-up). Adherence to allocated intervention and actual dose delivered (fidelity) were documented in case report forms and daily diaries. Focus groups further explored acceptability of interventions and study experience. Analysis: Recruitment, attrition, and dose adherence rates were calculated as percentages of possible totals. Thematic analysis of daily diaries and focus group data was undertaken. Standard deviations of outcome measures were calculated and used to inform a sample size calculation. Results: Recruitment, attrition, and adherence rates were 48.57, 5.88, and 96.88%, respectively. Focus groups, daily-diaries and case report forms indicated acceptability of interventions and outcome measures to participants. The 5-m walk was selected as primary outcome measure for a future trial [mean (SD) at end of intervention: 16.86 (11.24) MTS group and 21.56 (13.57) TI group]; sample size calculation indicated 60 participants are required per group. Conclusion: Recruitment, attrition and adherence rates and acceptability of interventions and outcomes justify a subsequent powered RCT of MTS+TSGT compared with TI+TSGT.
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BACKGROUND: Cardiorespiratory impairments are considered the main cause of mortality in the late stages of Parkinson's. Aerobic exercise has been shown to improve pulmonary function in asthmatic patients and in healthy people. However, effects of aerobic exercise on cardiopulmonary function in people with Parkinson's have not been investigated. Therefore, this study aimed to review the effects of aerobic exercise on cardiopulmonary function in people with Parkinson's. METHODS: A systematic search was conducted using MEDLINE, AMED, CINHAL Plus, and relevant associated keywords, from January 1970 to January 2020. Inclusion criteria for the studies were: aerobic exercise as part of the intervention, pulmonary function test, and/or cardiopulmonary exercise test as outcome measures. RESULTS: In total, 329 citations were identified from the search, of which nine were included in this review. In general, aerobic exercise was found to have positive effects on cardiac function for people with Parkinson's, but there is a lack of studies on the effects of aerobic exercise on pulmonary function. CONCLUSION: People with early stages of Parkinson's may experience positive effects of aerobic exercise on cardiac fitness. Further research is needed in this area, particularly into the effects of aerobic exercise on pulmonary function in early stages of the disease.
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BACKGROUND: Understanding the mechanisms controlling stem cell differentiation is the key to future advances in tissue and organ regeneration. Embryonic stem (ES) cell differentiation can be triggered by embryoid body (EB) formation, which involves ES cell aggregation in suspension. EB growth in the absence of leukaemia inhibitory factor (LIF) leads EBs to mimic early embryonic development, giving rise to markers representative of endoderm, mesoderm and ectoderm. Here, we have used microarrays to investigate differences in gene expression between 3 undifferentiated ES cell lines, and also between undifferentiated ES cells and Day 1-4 EBs. RESULTS: An initial array study identified 4 gene expression changes between 3 undifferentiated ES cell lines. Tissue culture conditions for ES differentiation were then optimized to give the maximum range of gene expression and growth. -Undifferentiated ES cells and EBs cultured with and without LIF at each day for 4 days were subjected to microarray analysis. -Differential expression of 23 genes was identified. 13 of these were also differentially regulated in a separate array comparison between undifferentiated ES cells and compartments of very early embryos. A high degree of inter-replicate variability was noted when confirming array results. Using a panel of marker genes, RNA amplification and RT-PCR, we examined expression pattern variation between individual -D4-Lif EBs. We found that individual EBs selected from the same dish were highly variable in gene expression profile. CONCLUSION: ES cell lines derived from different mouse strains and carrying different genetic modifications are almost invariant in gene expression profile under conditions used to maintain pluripotency. Tissue culture conditions that give the widest range of gene expression and maximise EB growth involve the use of 20% serum and starting cell numbers of 1000 per EB. 23 genes of importance to early development have been identified; more than half of these are also identified using similar studies, thus validating our results. EBs cultured in the same dish vary widely in terms of their gene expression (and hence, undoubtedly, in their future differentiation potential). This may explain some of the inherent variability in differentiation protocols that use EBs.
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Diferenciación Celular , Células Madre Embrionarias/metabolismo , Perfilación de la Expresión Génica , Animales , Células Madre Embrionarias/citología , Ratones , Ratones Endogámicos C57BL , Análisis de Secuencia por Matrices de OligonucleótidosRESUMEN
We investigated the spatio-temporal profile of hemoglobin subunit expression in developing avascular tissues. Significant up-regulation of hemoglobin subunits was identified in microarray experiments comparing blastocyst inner cell masses with undifferentiated embryonic stem (ES) cells. Hemoglobin expression changes were confirmed using embryoid bodies (derived from in vitro differentiation of ES cells) to model very early development at pre-vascular stages of embryogenesis; i.e. prior to hematopoiesis. We also demonstrate, using RT-PCR, Western blotting and immunocytochemistry, expression of adult and fetal mouse hemoglobin subunits in the avascular ocular lens at various stages of development and maturation. Hemoglobin proteins were expressed in lens epithelial cells (cytoplasmic) and cortical lens fiber cells (nuclear and cell-surface-associated); however, a sensitive heme assay demonstrated negligible levels of heme in the developing lens postnatally. Hemoglobin expression was also observed in the developing eye in corneal endothelium and retinal ganglion cells. Gut sections showed, in addition to erythrocytes, hemoglobin protein staining in rare, individual villus epithelial cells. These results suggest a paradigm shift: hemoglobin subunits are expressed in the avascular lens and cornea and in pre-hematopoietic embryos. It is likely, therefore, that hemoglobin subunits have novel developmental roles; the absence of the heme group from the lens would indicate that at least some of these functions may be independent of oxygen metabolism. The pattern of expression of hemoglobin subunits in the perinuclear region during lens fiber cell differentiation, when denucleation is taking place, may indicate involvement in the apoptosis-like signaling processes occurring in differentiating lens fiber cells.
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Córnea/metabolismo , Regulación del Desarrollo de la Expresión Génica , Subunidades de Hemoglobina/metabolismo , Corteza del Cristalino/metabolismo , Cristalino/metabolismo , Animales , Western Blotting , Diferenciación Celular/genética , Embrión de Mamíferos , Células Epiteliales/metabolismo , Ojo/embriología , Ojo/metabolismo , Proteínas del Ojo/genética , Proteínas del Ojo/metabolismo , Subunidades de Hemoglobina/genética , Inmunohistoquímica , Cristalino/citología , Cristalino/embriología , Ratones , Retina/embriología , Retina/metabolismo , Reacción en Cadena de la Polimerasa de Transcriptasa InversaRESUMEN
OBJECTIVE: To explore the effects on motor function and impairment of mobilization and tactile stimulation for the paretic arm and hand after stroke. DESIGN: Replicated single-system series, ABA design. SETTING: The stroke rehabilitation ward of a community hospital in the United Kingdom. PARTICIPANTS: Consecutive sample, men and women (N=6) with stroke (left or right), within 3 months of onset. INTERVENTION: Sixty minutes of daily mobilization and tactile stimulation to the paretic arm and hand for 6 weeks in addition to the usual rehabilitation program. MAIN OUTCOME MEASURES: Focal disability (Action Research Arm Test [ARAT]) and motor impairment (Motricity Index arm section). RESULTS: All participants showed visual change in 1 or more of trend, level, or slope between baseline and intervention phases for both the ARAT and the Motricity Index. The visual analysis was confirmed through statistical testing (c statistic and/or Mann-Whitney U test) for 5 of 6 participants (statistical analysis was precluded for 1 participant). No further improvements were made on intervention withdrawal. CONCLUSIONS: This study shows proof of concept for using mobilization and tactile stimulation to improve motor recovery after severe paresis, justifying conducting dose-finding studies as a precursor to multicenter phase III clinical trials.
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Hemiplejía/rehabilitación , Modalidades de Fisioterapia , Tacto/fisiología , Extremidad Superior/fisiopatología , Anciano , Anciano de 80 o más Años , Femenino , Hemiplejía/fisiopatología , Humanos , Masculino , Persona de Mediana Edad , Recuperación de la Función , Estadísticas no Paramétricas , Resultado del TratamientoRESUMEN
Hormones from the fetally derived placenta signal to the mother throughout pregnancy to ensure optimal fetal growth and prepare the mother for her new role in nurturing her offspring. Through evolution, placental hormones have under gone remarkable diversification and species-specific expansions thought to be due to constant rebalancing of resource allocation between mother and offspring. Genomic imprinting, an epigenetic process in which parental germlines silence genes in the offspring, is thought to be the physical embodiment of a second conflicting interest, between the male and female mammal. Several genes silenced by paternal imprints normally function to limit the placental endocrine lineages of the mouse placenta. We hypothesized that paternal imprinting has adapted to overcome the rapid evolution of placental hormone gene families by directly regulating the lineages that express these hormones rather than individual hormones. This predicts the existence of genes maternally silenced in the offspring counteracting the influence of the paternal imprint. Here we report on the consequences of loss of function of Paternally expressed gene 3 (Peg3), on placental endocrine lineages. Mutant male placenta displayed a marked loss of the spongiotrophoblast, a key endocrine lineage of the placenta, and the glycogen cell lineage alongside reduced stores of placental glycogen and changes in expression of the normal repertoire of placental hormones. Peg3 is known to transcriptionally repress placental hormone genes. Peg3 consequently both positively and negatively regulates placental hormones through two independent and opposing mechanisms. Female placenta showed moderate response to loss of Peg3 with minor alterations to the junctional zone lineages and few changes in gene expression. These data highlight the important fact that female placenta compensate for the loss of Peg3 better than male placenta. This work lends further support to our novel hypothesis that the parental genomes are competing over the endocrine function of the mouse placenta and further suggests that a conflict between males and females begins in utero.
RESUMEN
BACKGROUND: Variation in physiological deficits underlying upper limb paresis after stroke could influence how people recover and to which physical therapy they best respond. OBJECTIVES: To determine whether functional strength training (FST) improves upper limb recovery more than movement performance therapy (MPT). To identify: (a) neural correlates of response and (b) whether pre-intervention neural characteristics predict response. DESIGN: Explanatory investigations within a randomised, controlled, observer-blind, and multicentre trial. Randomisation was computer-generated and concealed by an independent facility until baseline measures were completed. Primary time point was outcome, after the 6-week intervention phase. Follow-up was at 6 months after stroke. PARTICIPANTS: With some voluntary muscle contraction in the paretic upper limb, not full dexterity, when recruited up to 60 days after an anterior cerebral circulation territory stroke. INTERVENTIONS: Conventional physical therapy (CPT) plus either MPT or FST for up to 90 min-a-day, 5 days-a-week for 6 weeks. FST was "hands-off" progressive resistive exercise cemented into functional task training. MPT was "hands-on" sensory/facilitation techniques for smooth and accurate movement. OUTCOMES: The primary efficacy measure was the Action Research Arm Test (ARAT). Neural measures: fractional anisotropy (FA) corpus callosum midline; asymmetry of corticospinal tracts FA; and resting motor threshold (RMT) of motor-evoked potentials. ANALYSIS: Covariance models tested ARAT change from baseline. At outcome: correlation coefficients assessed relationship between change in ARAT and neural measures; an interaction term assessed whether baseline neural characteristics predicted response. RESULTS: 288 Participants had: mean age of 72.2 (SD 12.5) years and mean ARAT 25.5 (18.2). For 240 participants with ARAT at baseline and outcome the mean change was 9.70 (11.72) for FST + CPT and 7.90 (9.18) for MPT + CPT, which did not differ statistically (p = 0.298). Correlations between ARAT change scores and baseline neural values were between 0.199, p = 0.320 for MPT + CPT RMT (n = 27) and -0.147, p = 0.385 for asymmetry of corticospinal tracts FA (n = 37). Interaction effects between neural values and ARAT change between baseline and outcome were not statistically significant. CONCLUSIONS: There was no significant difference in upper limb improvement between FST and MPT. Baseline neural measures did not correlate with upper limb recovery or predict therapy response. TRIAL REGISTRATION: Current Controlled Trials: ISRCT 19090862, http://www.controlled-trials.com.