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1.
Clin Med (Lond) ; 24(1): 100017, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38387207

ABSTRACT

Non-tuberculous mycobacteria (NTM) are ubiquitous environmental organisms that can cause significant disease in both immunocompromised and immunocompetent individuals. The incidence of NTM pulmonary disease (NTM-PD) is rising globally. Diagnostic challenges persist and treatment efficacy is variable. This article provides an overview of NTM-PD for clinicians. We discuss how common it is, who is at risk, how it is diagnosed and the multidisciplinary approach to its clinical management.


Subject(s)
Immunocompromised Host , Nontuberculous Mycobacteria , Humans
2.
Nutrients ; 16(3)2024 Jan 30.
Article in English | MEDLINE | ID: mdl-38337690

ABSTRACT

Iron supplementation is routinely recommended for breast-milk-fed preterm infants. However, the Canadian Pediatric Society recommends no additional iron supplementation for preterm infants fed primarily with iron-rich formula. Other pediatric societies don't provide specific guidance on supplemental iron for formula-fed preterm infants. This study investigated how feeding type influences iron status of very preterm infants at 4-6-months corrected age (CA). A retrospective cohort study was conducted using a population-based database on all very preterm infants (<31 weeks gestational age) born in Nova Scotia, Canada from 2005-2018. Information about feeding type, iron intake from formula, supplemental iron therapy and iron status at 4-6-months CA was extracted. Iron deficiency (ID) was defined as serum ferritin <20 and <12 µg/L at 4-and 6-months CA, respectively. Of 392 infants, 107 were "breast-milk-fed" (exclusively or partially) and 285 were "not breast-milk-fed" (exclusively fed with iron-rich formula) at 4-6-months CA. Total daily iron intake was higher in the non-breast-milk-fed group (2.6 mg/kg/day versus 2.0 mg/kg/day). Despite this, 36.8% of non-breast-milk-fed infants developed ID versus 20.6% of breast-milk-fed infants. ID is significantly more prevalent in non-breast-milk-fed infants than breast-milk-fed infants despite higher iron intake. This suggests the need to revisit recommendations for iron supplementation in non-breast-milk-fed preterm infants.


Subject(s)
Infant, Premature , Iron Deficiencies , Infant , Female , Humans , Infant, Newborn , Child , Retrospective Studies , Cohort Studies , Milk, Human , Breast Feeding , Iron , Nova Scotia , Infant Formula
3.
Ann Am Thorac Soc ; 21(3): 411-420, 2024 Mar.
Article in English | MEDLINE | ID: mdl-37879036

ABSTRACT

Rationale: Cardiopulmonary exercise testing (CPET) provides prognostic information in cystic fibrosis (CF); however, its prognostic value for patients with advanced CF lung disease is unknown. Objectives: To determine the prognostic value of CPET on the risk of death or lung transplant (LTX) within 2 years. Methods: We retrospectively collected data from 20 CF centers in Asia, Australia, Europe, and North America on patients with a forced expiratory volume in 1 second (FEV1) ⩽ 40% predicted who performed a cycle ergometer CPET between January 2008 and December 2017. Time to death/LTX was analyzed using mixed Cox proportional hazards regression. Conditional inference trees were modeled to identify subgroups with increased risk of death/LTX. Results: In total, 174 patients (FEV1, 30.9% ± 5.8% predicted) were included. Forty-four patients (25.5%) died or underwent LTX. Cox regression analysis adjusted for age, sex, and FEV1 revealed percentage predicted peak oxygen uptake ([Formula: see text]o2peak) and peak work rate (Wpeak) as significant predictors of death/LTX: adjusted hazard ratios per each additional 10% predicted were 0.60 (95% confidence interval, 0.43-0.90; P = 0.008) and 0.60 (0.48-0.82; P < 0.001). Tree-structured regression models, including a set of 11 prognostic factors for survival, identified Wpeak to be most strongly associated with 2-year risk of death/LTX. Probability of death/LTX was 45.2% for those with a Wpeak ⩽ 49.2% predicted versus 10.9% for those with a Wpeak > 49.2% predicted (P < 0.001). Conclusions: CPET provides prognostic information in advanced CF lung disease, and Wpeak appears to be a promising marker for LTX referral and candidate selection.


Subject(s)
Cystic Fibrosis , Lung Transplantation , Humans , Exercise Test , Prognosis , Retrospective Studies
4.
J Cyst Fibros ; 23(1): 12-28, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38129255

ABSTRACT

This is the second in a series of four papers updating the European Cystic Fibrosis Society (ECFS) standards for the care of people with CF. This paper focuses on establishing and maintaining health. The guidance is produced using an evidence-based framework and with wide stakeholder engagement, including people from the CF community. Authors provided a narrative description of their topic and statements, which were more directive. These statements were reviewed by a Delphi exercise, achieving good levels of agreement from a wide group for all statements. This guidance reinforces the importance of a multi-disciplinary CF team, but also describes developing models of care including virtual consultations. The framework for health is reinforced, including the need for a physically active lifestyle and the strict avoidance of all recreational inhalations, including e-cigarettes. Progress with cystic fibrosis transmembrane conductance regulator (CFTR) modulator therapy is reviewed, including emerging adverse events and advice for dose reduction and interruption. This paper contains guidance that is pertinent to all people with CF regardless of age and eligibility for and access to modulator therapy.


Subject(s)
Cystic Fibrosis , Electronic Nicotine Delivery Systems , Respiratory System Agents , Humans , Cystic Fibrosis/drug therapy , Mutation , Cystic Fibrosis Transmembrane Conductance Regulator/genetics , Respiratory System Agents/therapeutic use
5.
Front Pediatr ; 11: 1281513, 2023.
Article in English | MEDLINE | ID: mdl-38054186

ABSTRACT

Background: Serum ferritin (SF) is commonly used to diagnose iron deficiency (ID) but has limitations. Reticulocyte hemoglobin (Ret-He) is being increasingly used for ID diagnosis. This study aimed to assess accuracy of Ret-He for ID diagnosis in former very preterm infants (VPI) at 4-6 months corrected age (CA). Methods: A retrospective population-based cohort study was conducted on all live VPI born between 23 and 30 weeks of gestational age (GA) in Nova Scotia from 2012 to 2018. Infants underwent SF and Ret-He testing at 4-6 months CA. ID was defined using two definitions. The first defined ID as SF < 20 mcg/L at both 4- and 6-months CA, and the second as SF < 30 mcg at at both 4- and 6-months CA. The accuracy of Ret-He for identifying ID was assessed using the area under the receiver operating characteristic curve (AUC). Results: ID was present in 39.7% (62) of 156 infants in the first definition and 59.6% (93) in the second at 4-6 months CA. The AUC of Ret-He for ID diagnosis was 0.64 (p = 0.002) in the first definition and 0.59 (p = 0.04) in the second. The optimal cut-off was 29.4pg in the first and 29.7 in the second definition. The sensitivity, specificity, positive predictive value (PPV), and negative predictive values (NPV) at the 29.4 pg cut-off were 50.0%, 78.7%, 60.8%, and 70.5% for definition 1 and 44.1%, 74.6%, 71.9%, and 47.5% at the 29.7pg cut-off for definition 2. Conclusion: Ret-He had low diagnostic accuracy for ID diagnosis in former VPI. Caution is advised when using Ret-He alone for ID diagnosis. Further research is needed to establish optimal approaches for identifying ID in VPI.

6.
Cochrane Database Syst Rev ; 11: CD007639, 2023 11 09.
Article in English | MEDLINE | ID: mdl-37942828

ABSTRACT

BACKGROUND: Nebuliser systems are used to deliver medications to the lungs, to control the symptoms and the progression of lung disease in people with cystic fibrosis (CF). There are many different nebulised-medications prescribed for people with CF and there are many different types of nebuliser systems. Some of these nebulised medications are licenced for, and can be taken via only one type of nebuliser system; some are licensed for, and can be taken via more than one type of nebuliser system. This is an update to a previous systematic review. OBJECTIVES: To assess the time efficiency, effectiveness, safety, cost and impact of use (e.g. burden of care, adherence, quality of life (QoL)) of different nebuliser systems, when used with different inhaled medications for people with CF. SEARCH METHODS: We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group Trials Register comprising references identified from comprehensive electronic database searches, handsearching of relevant journals and abstract books containing conference proceedings. We searched the reference lists of each study for additional publications and approached the manufacturers of both nebuliser systems and nebulised medications for published and unpublished data. We also searched online trial registries. Date of the most recent search: 9 August 2023. SELECTION CRITERIA: Randomised controlled trials (RCTs) or quasi-RCTs comparing nebuliser systems, including conventional nebulisers, vibrating mesh technology (VMT) systems, adaptive aerosol delivery (AAD) systems and ultrasonic nebuliser systems. DATA COLLECTION AND ANALYSIS: Two review authors independently assessed studies for inclusion. They also independently extracted data and assessed the risk of bias. A third review author assessed studies where agreement could not be reached. They assessed the certainty of the evidence using GRADE. MAIN RESULTS: The search identified 216 studies with 33 of these (2270 participants) included in the review. These studies compared the delivery of tobramycin, colistin, dornase alfa, hypertonic saline and other solutions through the different nebuliser systems in children and adults with CF. This review demonstrates variability in the delivery of medication depending on the nebuliser system used. The certainty of the evidence ranged from low to very low. Some conventional nebuliser systems providing higher flows, higher respirable fractions, and smaller particles decrease treatment time, increase deposition (the amount of drug reaching the lung), and may be preferred by people with CF, as compared to other conventional nebuliser systems providing lower flows, lower respirable fractions and larger particles. Newer nebuliser systems using AAD, or VMT (or both) reduce treatment time compared to conventional systems. Deposition (as a percentage of priming dose) with AAD is greater than with conventional systems. VMT systems may give greater deposition than conventional systems when measuring sputum levels. The available data indicate that these newer systems are safe when used with an appropriate priming dose, which may be different to the priming dose used for conventional systems. There is an indication that adherence is maintained or improved and that individuals prefer AAD or VMT systems, but also that some nebuliser systems using VMT may be subject to increased system failures. There is limited, unclear evidence on the impact of different nebuliser systems on lung function and a lack of data on the impact of different nebuliser systems on our outcomes of quality of life (QoL), adverse effects, respiratory exacerbations and related implications, adherence, satisfaction, cost and device reliability. AUTHORS' CONCLUSIONS: Newer technologies e.g. AAD and VMT have advantages over conventional systems in terms of treatment time, deposition as a percentage of priming dose, preference and adherence. Data are lacking for all varieties of medications which are used in CF care, including different inhaled antibiotics or hypertonic saline, with all delivery (nebuliser system) possibilities. Long-term RCTs are needed to evaluate different nebuliser systems to determine patient-focused outcomes (such as QoL and burden of care), safe and effective dosing levels of a wide variety of medications, clinical outcomes (such as hospitalisations and need for antibiotics), and an economic evaluation of their use. There are insufficient data to establish whether one nebuliser system is better than another overall. Clinicians should be aware of the variability in the performance of different nebuliser systems, compatibility with specific nebulised medication, and they must work with their patients to choose the best nebuliser system for each individual. This is likely to be an ongoing process as the needs and circumstances of each individual change over time.


Subject(s)
Cystic Fibrosis , Child , Adult , Humans , Cystic Fibrosis/drug therapy , Respiratory Aerosols and Droplets , Anti-Bacterial Agents/therapeutic use , Nebulizers and Vaporizers , Tobramycin/therapeutic use , Saline Solution, Hypertonic/therapeutic use
8.
J Chem Phys ; 159(5)2023 Aug 07.
Article in English | MEDLINE | ID: mdl-37526165

ABSTRACT

For industrial applications of self-assembled wormlike micelles, measurement and characterization of a micellar material's microstructure and rheology are paramount for the development and deployment of new high-performing and cost-effective formulations. Within this workflow, there are significant bottlenecks associated with experimental delays and a lack of transferability of results from one chemistry to another. In this work, we outline a process to predict microscopic and thermodynamic characteristics of wormlike micelles directly from rheological data by combining a more robust and efficient fitting algorithm with a recently published constitutive model called the Toy Shuffling model [J. D. Peterson and M. E. Cates, J. Rheol. 64, 1465-1496 (2020) and J. D. Peterson and M. E. Cates, J. Rheol. 65, 633-662 (2021)]. To support this work, linear rheology measurements were taken for 143 samples comprising a common base formulation of commercial sodium lauryl ether sulfate, cocamidopropyl betaine, and salt (NaCl). The steady state zero shear viscosity evident in linear rheology was measured in duplicate via direct steady and oscillatory shear experiments. Fitting the collected data to the model, we found trends in the microstructural and thermodynamic characteristics that agree with molecular dynamics simulations. These trends validate our new perspective on the parameters that inform the study of the relationship between chemical formulation and rheology. This work, when implemented at scale, can potentially be used to inform and test strategies for predicting self-assembled micellar structures based on chemical formulation.

9.
Eur Respir Rev ; 32(169)2023 Sep 30.
Article in English | MEDLINE | ID: mdl-37558263

ABSTRACT

Regular exercise testing is recommended for all people with cystic fibrosis (PwCF). A range of validated tests, which integrate both strength and aerobic function, are available and increasingly being used. Together, these tests offer the ability for comprehensive exercise evaluation. Extensive research and expert consensus over recent years has enabled the adaptation and standardisation of a range of exercise tests to aid the understanding of the pathophysiology related to exercise limitation in PwCF and has led to the development of novel exercise tests which may be applied to PwCF. This article provides expert, opinion-based clinical practice guidance, along with test instructions, for a selection of commonly used valid tests which have documented clinimetric properties for PwCF. Importantly, this document also highlights previously used tests that are no longer suggested for PwCF and areas where research is mandated. This collaboration, on behalf of the European Cystic Fibrosis Society Exercise Working Group, represents expert consensus by a multidisciplinary panel of physiotherapists, exercise scientists and clinicians and aims to improve global standardisation of functional exercise testing of PwCF. In short, the standardised use of a small selection of tests performed to a high standard is advocated.


Subject(s)
Cystic Fibrosis , Humans , Cystic Fibrosis/diagnosis , Cystic Fibrosis/therapy , Exercise Test , Consensus , Exercise
10.
Psychol Psychother ; 96(4): 885-901, 2023 12.
Article in English | MEDLINE | ID: mdl-37466121

ABSTRACT

OBJECTIVES: To evaluate the accuracy of patient information leaflets about electroconvulsive therapy (ECT) used in Northern Ireland, Scotland and Wales, and their compliance with the principle of informed consent. DESIGN AND METHODS: To replicate an audit in England, Freedom of Information Act requests were sent to the 26 providers of ECT for their ECT patient information leaflet. These were scored, by two independent raters, on the same 40-item accuracy measure used in the England audit. RESULTS: The number of accurate statements (out of a possible 29) ranged from seven to 20, with a mean of 16.9. The most frequently omitted statements included: cardiovascular risks (mentioned by five leaflets), that it is not known how ECT works (3), risk of mortality (2), risks from multiple general anaesthetic procedures (2), how to access a legal advocate (2) and that that there is no evidence of long-term benefits (1). The leaflets made between six and nine inaccurate statements (out of 11) with a mean of 7.0. Nineteen minimised memory loss, blamed the memory loss on depression, claimed that ECT is the 'most effective treatment' and asserted it has very high response rates without mentioning similar placebo response rates. All 23 leaflets wrongly told patients that ECT saves lives. CONCLUSIONS: Electroconvulsive therapy information leaflets in these three nations are barely more accurate than those in England and do not comply with the ethical principle of informed consent. Patients and families across the UK are systematically being misled about the risks they are taking and the limited nature of ECT's benefits.


Subject(s)
Electroconvulsive Therapy , Humans , Wales , Northern Ireland , Scotland , Memory Disorders
11.
J Cyst Fibros ; 22(1): 17-30, 2023 01.
Article in English | MEDLINE | ID: mdl-36916675

ABSTRACT

Cystic fibrosis (CF) has entered the era of variant-specific therapy, tailored to the genetic variants in the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene. CFTR modulators, the first variant-specific therapy available, have transformed the management of CF. The latest standards of care from the European CF Society (2018) did not include guidance on variant-specific therapy, as CFTR modulators were becoming established as a novel therapy. We have produced interim standards to guide healthcare professionals in the provision of variant-specific therapy for people with CF. Here we provide evidence-based guidance covering the spectrum of care, established using evidence from systematic reviews and expert opinion. Statements were reviewed by key stakeholders using Delphi methodology, with agreement (≥80%) achieved for all statements after one round of consultation. Issues around accessibility are discussed and there is clear consensus that all eligible people with CF should have access to variant-specific therapy.


Subject(s)
Cystic Fibrosis , Humans , Cystic Fibrosis/drug therapy , Cystic Fibrosis/genetics , Cystic Fibrosis Transmembrane Conductance Regulator/genetics , Standard of Care , Ion Transport , Signal Transduction , Mutation
12.
Thorax ; 78(1): 88-91, 2023 01.
Article in English | MEDLINE | ID: mdl-36599464

ABSTRACT

Replacing traditional airway clearance therapy (tACT) with exercise (ExACT) in people with cystic fibrosis (pwCF) is a top research priority. A UK-based e-Delphi consensus was performed to inform the type(s), duration and intensity of ExACT. The expert panel comprised CF physiotherapists, doctors, pwCF and parents/partners. Exercise ACT was considered to be aerobic activity, of at least 20 min duration and intense enough to elicit deep breathing. Consensus was reached that assessment breaths, coughs and huffs should accompany exercise to remove loose secretions, with support for trials to investigate ExACT versus tACT during times of stable disease but not pulmonary exacerbations.


Subject(s)
Cystic Fibrosis , Exercise Therapy , Humans , Caregivers , Cystic Fibrosis/therapy , Respiratory Therapy , United Kingdom , Delphi Technique , Internet , Surveys and Questionnaires , Health Personnel , Patients , Consensus
13.
Phys Ther ; 103(1)2022 12 30.
Article in English | MEDLINE | ID: mdl-36193006

ABSTRACT

In looking back on 2020 and 2021, this Perspective reflects on the monumental impacts of the rollout of cystic fibrosis (CF) transmembrane conductance regulator highly effective modulator therapies and the COVID-19 pandemic on the management of CF. Advancements in the clinical management of people with CF have been both enormous and rapid, and physical therapists specializing in the care of people with CF have been at the forefront of driving this evolution in care. This year sees the 30th anniversary of the UK Association of Chartered Physiotherapists in Cystic Fibrosis and, as is inevitable in reaching such milestones, thoughts have turned to origins, role, impacts, and the future. With the changing demographics of the population of people with CF after the introduction of highly effective modulator therapies, potentially with fewer secondary complications, the future role of the physical therapist who specializes in CF is in question. This Perspective reflects on and highlights the role of physical therapy within CF and provides insights into how physical therapists and respiratory therapists can evolve their roles to ensure relevance for the future.


Subject(s)
COVID-19 , Cystic Fibrosis , Physical Therapists , Humans , Cystic Fibrosis/therapy , Pandemics
14.
Chron Respir Dis ; 19: 14799731221121670, 2022.
Article in English | MEDLINE | ID: mdl-36068015

ABSTRACT

BACKGROUND: The roles of physical activity (PA) and exercise within the management of cystic fibrosis (CF) are recognised by their inclusion in numerous standards of care and treatment guidelines. However, information is brief, and both PA and exercise as multi-faceted behaviours require extensive stakeholder input when developing and promoting such guidelines. METHOD: On 30th June and 1st July 2021, 39 stakeholders from 11 countries, including researchers, healthcare professionals and patients participated in a virtual conference to agree an evidence-based and informed expert consensus about PA and exercise for people with CF. This consensus presents the agreement across six themes: (i) patient and system centred outcomes, (ii) health benefits, iii) measurement, (iv) prescription, (v) clinical considerations, and (vi) future directions. The consensus was achieved by a stepwise process, involving: (i) written evidence-based synopses; (ii) peer critique of synopses; (iii) oral presentation to consensus group and peer challenge of revised synopses; and (iv) anonymous voting on final proposed synopses for adoption to the consensus statement. RESULTS: The final consensus document includes 24 statements which surpassed the consensus threshold (>80% agreement) out of 30 proposed statements. CONCLUSION: This consensus can be used to support health promotion by relevant stakeholders for people with CF.


Subject(s)
Cystic Fibrosis , Consensus , Cystic Fibrosis/therapy , Exercise , Health Promotion , Humans
15.
J Pediatr ; 247: 74-80.e2, 2022 08.
Article in English | MEDLINE | ID: mdl-35577120

ABSTRACT

OBJECTIVE: To determine postdischarge iron status and associated factors in very preterm infants. STUDY DESIGN: A retrospective cohort study was conducted through a provincial database on all very preterm infants born in Nova Scotia between 2005 and 2018. As a standard of care, all infants received prophylactic iron supplements starting at 2-4 weeks of chronological age and were tested for iron deficiency at 4 or 6 months corrected age. Iron deficiency was defined as serum ferritin <20 g/L at 4 months or <12 g/L at 6 months. Multivariate logistic regression analysis identified factors associated with iron deficiency. RESULTS: Among 411 infants, 132 (32.1%) had iron deficiency and 11 (2.7%) had iron deficiency anemia. The prevalence of iron deficiency decreased over time, from 37.6% in 2005-2011 to 25.8% in 2012-2018. Gestational hypertension in the mother (P = .01) and gestational age <27 weeks (P = .02) were independent risk factors for iron deficiency. In addition, the odds of iron deficiency were lower in the mixed-fed group (ie, with breast milk and formula combined) compared with the exclusive formula-fed group (P = .01). CONCLUSIONS: Iron deficiency was prevalent in 32% of the very preterm infants despite early iron prophylaxis. These results demonstrate the importance of monitoring iron stores during preterm follow-up. Information about risk factors is important to mitigate iron deficiency in very preterm infants.


Subject(s)
Anemia, Iron-Deficiency , Infant, Premature, Diseases , Iron Deficiencies , Aftercare , Anemia, Iron-Deficiency/epidemiology , Anemia, Iron-Deficiency/etiology , Anemia, Iron-Deficiency/prevention & control , Dietary Supplements , Female , Fetal Growth Retardation , Humans , Infant , Infant, Newborn , Infant, Premature , Infant, Premature, Diseases/epidemiology , Infant, Premature, Diseases/prevention & control , Iron/therapeutic use , Patient Discharge , Retrospective Studies
16.
J Med Chem ; 64(16): 11886-11903, 2021 08 26.
Article in English | MEDLINE | ID: mdl-34355886

ABSTRACT

The PKC-θ isoform of protein kinase C is selectively expressed in T lymphocytes and plays an important role in the T cell antigen receptor (TCR)-triggered activation of mature T cells, T cell proliferation, and the subsequent release of cytokines such as interleukin-2 (IL-2). Herein, we report the synthesis and structure-activity relationship (SAR) of a novel series of PKC-θ inhibitors. Through a combination of structure-guided design and exploratory SAR, suitable replacements for the basic C4 amine of the original lead (3) were identified. Property-guided design enabled the identification of appropriately substituted C2 groups to afford potent analogs with metabolic stability and permeability to support in vivo testing. With exquisite general kinase selectivity, cellular inhibition of T cell activation as assessed by IL-2 expression, a favorable safety profile, and demonstrated in vivo efficacy in models of acute and chronic T cell activation with oral dosing, CC-90005 (57) was selected for clinical development.


Subject(s)
Cyclohexanols/therapeutic use , Graft vs Host Disease/drug therapy , Immunologic Factors/therapeutic use , Protein Kinase C-theta/antagonists & inhibitors , Protein Kinase Inhibitors/therapeutic use , Pyrimidines/therapeutic use , Animals , Caco-2 Cells , Cell Proliferation/drug effects , Cyclohexanols/chemical synthesis , Cyclohexanols/metabolism , Humans , Immunologic Factors/chemical synthesis , Immunologic Factors/metabolism , Lymphocyte Activation/drug effects , Male , Mice, Inbred C57BL , Molecular Docking Simulation , Molecular Structure , Protein Binding , Protein Kinase C-delta/antagonists & inhibitors , Protein Kinase C-delta/metabolism , Protein Kinase C-theta/metabolism , Protein Kinase Inhibitors/chemical synthesis , Protein Kinase Inhibitors/metabolism , Pyrimidines/chemical synthesis , Pyrimidines/metabolism , Structure-Activity Relationship , T-Lymphocytes/drug effects
17.
Cochrane Database Syst Rev ; 4: CD006842, 2020 04 30.
Article in English | MEDLINE | ID: mdl-32352564

ABSTRACT

BACKGROUND: Chest physiotherapy is widely prescribed to assist the clearance of airway secretions in people with cystic fibrosis. Oscillating devices generate intra- or extra-thoracic oscillations orally or external to the chest wall. Internally they create variable resistances within the airways, generating controlled oscillating positive pressure which mobilises mucus. Extra-thoracic oscillations are generated by forces outside the respiratory system, e.g. high frequency chest wall oscillation. This is an update of a previously published review. OBJECTIVES: To identify whether oscillatory devices, oral or chest wall, are effective for mucociliary clearance and whether they are equivalent or superior to other forms of airway clearance in the successful management of secretions in people with cystic fibrosis. SEARCH METHODS: We searched the Cochrane Cystic Fibrosis and Genetic Disorders Group Trials Register comprising references identified from comprehensive electronic database searches and hand searches of relevant journals and abstract books of conference proceedings. Latest search of the Cystic Fibrosis Trials Register: 29 July 2019. In addition we searched the trials databases ClinicalTrials.gov and the WHO International Clinical Trials Registry Platform. Latest search of trials databases: 15 August 2019. SELECTION CRITERIA: Randomised controlled studies and controlled clinical studies of oscillating devices compared with any other form of physiotherapy in people with cystic fibrosis. Single-treatment interventions (therapy technique used only once in the comparison) were excluded. DATA COLLECTION AND ANALYSIS: Two authors independently applied the inclusion criteria to publications, assessed the quality of the included studies and assessed the evidence using GRADE. MAIN RESULTS: The searches identified 82 studies (330 references); 39 studies (total of 1114 participants) met the inclusion criteria. Studies varied in duration from up to one week to one year; 20 of the studies were cross-over in design. The studies also varied in type of intervention and the outcomes measured, data were not published in sufficient detail in most of these studies, so meta-analysis was limited. Few studies were considered to have a low risk of bias in any domain. It is not possible to blind participants and clinicians to physiotherapy interventions, but 13 studies did blind the outcome assessors. The quality of the evidence across all comparisons ranged from low to very low. Forced expiratory volume in one second was the most frequently measured outcome and while many of the studies reported an improvement in those people using a vibrating device compared to before the study, there were few differences when comparing the different devices to each other or to other airway clearance techniques. One study identified an increase in frequency of exacerbations requiring antibiotics whilst using high frequency chest wall oscillation when compared to positive expiratory pressure (low-quality evidence). There were some small but significant changes in secondary outcome variables such as sputum volume or weight, but not wholly in favour of oscillating devices and due to the low- or very low-quality evidence, it is not clear whether these were due to the particular intervention. Participant satisfaction was reported in 13 studies but again with low- or very low-quality evidence and not consistently in favour of an oscillating device, as some participants preferred breathing techniques or techniques used prior to the study interventions. The results for the remaining outcome measures were not examined or reported in sufficient detail to provide any high-level evidence. AUTHORS' CONCLUSIONS: There was no clear evidence that oscillation was a more or less effective intervention overall than other forms of physiotherapy; furthermore there was no evidence that one device is superior to another. The findings from one study showing an increase in frequency of exacerbations requiring antibiotics whilst using an oscillating device compared to positive expiratory pressure may have significant resource implications. More adequately-powered long-term randomised controlled trials are necessary and outcomes measured should include frequency of exacerbations, individual preference, adherence to therapy and general satisfaction with treatment. Increased adherence to therapy may then lead to improvements in other parameters, such as exercise tolerance and respiratory function. Additional evidence is needed to evaluate whether oscillating devices combined with other forms of airway clearance is efficacious in people with cystic fibrosis.There may also be a requirement to consider the cost implication of devices over other forms of equally advantageous airway clearance techniques. Using the GRADE method to assess the quality of the evidence, we judged this to be low or very low quality, which suggests that further research is very likely to have an impact on confidence in any estimate of effect generated by future interventions.


Subject(s)
Chest Wall Oscillation/instrumentation , Cystic Fibrosis/complications , Lung Diseases, Obstructive/therapy , Mucociliary Clearance , Mucus/metabolism , Vibration/therapeutic use , Adolescent , Adult , Breathing Exercises , Child , Cystic Fibrosis/physiopathology , Disease Progression , Forced Expiratory Flow Rates , Forced Expiratory Volume , Humans , Lung Diseases, Obstructive/etiology , Middle Aged , Patient Satisfaction , Randomized Controlled Trials as Topic , Sputum/metabolism
18.
J Med Chem ; 62(22): 10402-10422, 2019 11 27.
Article in English | MEDLINE | ID: mdl-31647659

ABSTRACT

Phosphoinositide-3-kinase δ (PI3Kδ) is a critical regulator of cell growth and transformation and has been explored as a therapeutic target for a range of diseases. Through the exploration of the thienopyrimidine scaffold, we have identified a ligand-efficient methylation that leads to remarkable selectivity for PI3Kδ over the closely related isoforms. Interrogation through the Free-Wilson analysis highlights the innate selectivity the thienopyrimidine scaffold has for PI3Kδ and provides a predictive model for the activity against the PI3K isoforms.


Subject(s)
Phosphatidylinositol 3-Kinases/metabolism , Phosphoinositide-3 Kinase Inhibitors/chemistry , Phosphoinositide-3 Kinase Inhibitors/pharmacology , Structure-Activity Relationship , Amines/chemistry , Humans , Isoenzymes/chemistry , Isoenzymes/metabolism , Methylation , Nitrogen/chemistry , Phosphatidylinositol 3-Kinases/chemistry , Phosphoinositide-3 Kinase Inhibitors/chemical synthesis , Pyrimidines/chemistry , Serum Albumin, Human/metabolism
19.
Gerontol Geriatr Educ ; 40(2): 261-275, 2019.
Article in English | MEDLINE | ID: mdl-30707650

ABSTRACT

As an Age-Friendly University (AFU), University of Akron is striving to support lifelong learning. A collaborative research effort developed between aging researchers at the university and a government-sponsored pilot program aimed to provide learning opportunities for older adults (OA) and engagement for individuals with developmental disabilities (IDD). The present study assessed the success of a pilot program to increase comfort with technology and community engagement. OA and IDD participants met twice a month for 9 months to discuss how to use technology (e.g., an IPad). We assessed satisfaction, perceived changes in comfort with technology, perceived changes in connection with others, and motivations for participating with questionnaires and a structured interview. On average, participants reported very high satisfaction with the group, and moderate increases in comfort with technology and how connected they feel to others as a result of participating in the group. The most common motivations for participation were related to values, strengthening social ties, seeking to learn, and bringing joy to others. These findings suggest that the pilot was successful at improving community engagement. The involvement of the university in the assessment of this pilot program situates the university as an age-friendly partner for community efforts to support lifelong learning.


Subject(s)
Aging , Attitude to Computers , Developmental Disabilities/rehabilitation , Social Participation , Universities/organization & administration , Adult , Aged , Aged, 80 and over , Community Participation , Consumer Behavior , Humans , Learning , Motivation , Population Dynamics , United States
20.
Cochrane Database Syst Rev ; 1: CD011231, 2019 01 24.
Article in English | MEDLINE | ID: mdl-30676656

ABSTRACT

BACKGROUND: Cystic fibrosis is a life-limiting genetic condition in which thick mucus builds up in the lungs, leading to infections, inflammation, and eventually, deterioration in lung function. To clear their lungs of mucus, people with cystic fibrosis perform airway clearance techniques daily. There are various airway clearance techniques, which differ in terms of the need for assistance or equipment, and cost. OBJECTIVES: To summarise the evidence from Cochrane Reviews on the effectiveness and safety of various airway clearance techniques in people with cystic fibrosis. METHODS: For this overview, we included Cochrane Reviews of randomised or quasi-randomised controlled trials (including cross-over trials) that evaluated an airway clearance technique (conventional chest physiotherapy, positive expiratory pressure (PEP) therapy, high-pressure PEP therapy, active cycle of breathing techniques, autogenic drainage, airway oscillating devices, external high frequency chest compression devices and exercise) in people with cystic fibrosis.We searched the Cochrane Database of Systematic Reviews on 29 November 2018.Two review authors independently evaluated reviews for eligibility. One review author extracted data from included reviews and a second author checked the data for accuracy. Two review authors independently graded the quality of reviews using the ROBIS tool. We used the GRADE approach for assessing the overall strength of the evidence for each primary outcome (forced expiratory volume in one second (FEV1), individual preference and quality of life). MAIN RESULTS: We included six Cochrane Reviews, one of which compared any type of chest physiotherapy with no chest physiotherapy or coughing alone and the remaining five reviews included head-to-head comparisons of different airway clearance techniques. All the reviews were considered to have a low risk of bias. However, the individual trials included in the reviews often did not report sufficient information to adequately assess risk of bias. Many trials did not sufficiently report on outcome measures and had a high risk of reporting bias.We are unable to draw definitive conclusions for comparisons of airway clearance techniques in terms of FEV1, except for reporting no difference between PEP therapy and oscillating devices after six months of treatment, mean difference -1.43% predicted (95% confidence interval -5.72 to 2.87); the quality of the body of evidence was graded as moderate. The quality of the body of evidence comparing different airway clearance techniques for other outcomes was either low or very low. AUTHORS' CONCLUSIONS: There is little evidence to support the use of one airway clearance technique over another. People with cystic fibrosis should choose the airway clearance technique that best meets their needs, after considering comfort, convenience, flexibility, practicality, cost, or some other factor. More long-term, high-quality randomised controlled trials comparing airway clearance techniques among people with cystic fibrosis are needed.


Subject(s)
Cystic Fibrosis/therapy , Positive-Pressure Respiration/methods , Respiratory Therapy/methods , Systematic Reviews as Topic , Chest Wall Oscillation/instrumentation , Chest Wall Oscillation/methods , Drainage/methods , Humans
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