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1.
Chembiochem ; 25(3): e202300671, 2024 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-38055197

RESUMEN

The proteasome degrades proteins, which is essential for cellular homeostasis. Ubiquitin independent proteolysis degrades highly disordered and misfolded proteins. A decline of proteasomal activity has been associated with multiple neurodegenerative diseases due to the accumulation of misfolded proteins. In this work, cyclic peptide proteasome stimulators (CyPPSs) that enhance the clearance of misfolded proteins were discovered. In the initial screen of predicted natural products (pNPs), several cyclic peptides were found to stimulate the 20S core particle (20S CP). Development of a robust structural activity relationship led to the identification of potent, cell permeable CyPPSs. In vitro assays revealed that CyPPSs stimulate degradation of highly disordered and misfolded proteins without affecting ordered proteins. Furthermore, using a novel flow-based assay for proteasome activity, several CyPPSs were found to stimulate the 20S CP in cellulo. Overall, this work describes the development of CyPPSs as chemical tools capable of stimulating the proteasome and provides strong support for proteasome stimulation as a therapeutic strategy for neurodegenerative diseases.


Asunto(s)
Enfermedades Neurodegenerativas , Complejo de la Endopetidasa Proteasomal , Humanos , Complejo de la Endopetidasa Proteasomal/metabolismo , Péptidos Cíclicos/farmacología , Péptidos Cíclicos/metabolismo , Proteolisis , Proteínas/metabolismo , Enfermedades Neurodegenerativas/tratamiento farmacológico
2.
Appl Environ Microbiol ; 90(10): e0148024, 2024 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-39360838

RESUMEN

Humans use dietary supplements for several intended effects, such as supplementing malnutrition. While these compounds have been developed for host end benefits, their ancillary impact on the gut microbiota remains unclear. The human gut has been proposed as a reservoir for the prevalent lateral transfer of antimicrobial resistance and virulence genes in bacteria through plasmid conjugation. Here, we studied the effect of dietary zinc supplements on the incidence of plasmid conjugation in vitro. Supplement effects were analyzed through standardized broth conjugation assays. The avian pathogenic Escherichia coli (APEC) strain APEC-O2-211 was a donor of the multidrug resistance plasmid pAPEC-O2-211A-ColV, and the human commensal isolate E. coli HS-4 was the plasmid-free recipient. Bacterial strains were standardized and mixed 1:1 and supplemented 1:10 with water, or zinc derived from either commercial zinc supplements or zinc gluconate reagent at varying concentrations. We observed a significant reduction in donors, recipients, and transconjugant populations in conjugations supplemented with zinc, with a dose-dependent relationship. Additionally, we observed a significant reduction (P < 0.05) in log conjugation efficiency in zinc-treated reactions. Upregulation of the mRNA for the plasmid replication initiation gene repA and the subset of transfer genes M, J, E, K, B, P, C, W, U, N, F, Q, D, I, and X was observed. Furthermore, we observed a downregulation of the conjugal propilin gene traA and the entry exclusion gene traS. This study demonstrates the effect of dietary zinc supplements on the conjugal transfer of a multidrug resistance plasmid between pathogenic and commensal bacteria during in vitro conditions.IMPORTANCEThis study identifies dietary zinc supplementation as a potential novel intervention for mitigating the emergence of multidrug resistance in bacteria, thus preventing antibiotic treatment failure and death in patients and animals. Further studies are required to determine the applicability of this approach in an in vivo model.


Asunto(s)
Conjugación Genética , Suplementos Dietéticos , Escherichia coli , Plásmidos , Zinc , Plásmidos/genética , Zinc/farmacología , Escherichia coli/genética , Escherichia coli/efectos de los fármacos , Animales , Humanos , Transferencia de Gen Horizontal , Proteínas de Escherichia coli/genética
3.
Scand J Med Sci Sports ; 34(3): e14572, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38424471

RESUMEN

INTRODUCTION: The study examined whether increased physical activity (PA) in nonmetropolitan cancer survivors was maintained 12 weeks following the PPARCS intervention. METHODS: PA outcomes were assessed using an accelerometer at baseline, end of the intervention, and at 24 weeks. Linear mixed models were used to examine between-group changes in PA outcomes. RESULTS: The increased moderate-to-vigorous PA (MVPA) following intervention was maintained with significantly higher MVPA in the intervention group at 24 weeks (vs. controls) compared to baseline nett change of 52.5 min/week (95% CI 11.0-94.0.4). CONCLUSIONS: Distance-based interventions using wearables and health coaching may produce MVPA maintenance amongst nonmetropolitan cancer survivors.


Asunto(s)
Supervivientes de Cáncer , Neoplasias , Humanos , Ejercicio Físico , Promoción de la Salud
4.
BMC Public Health ; 24(1): 157, 2024 01 11.
Artículo en Inglés | MEDLINE | ID: mdl-38212732

RESUMEN

BACKGROUND: Nightlife environments are high risk settings for sexual violence and bystander intervention programmes are being developed in response. However, more research is needed to understand nightlife-related sexual violence, and factors that influence bystander interventions. This study examined nightlife patron's experiences of sexual violence and associated factors; and relationships between attitudes towards, awareness and experience of sexual violence, and confidence to intervene. METHODS: Cross-sectional on-street survey of nightlife patrons (N = 307, aged 18+) on a night out in an English city. Surveys (7.30pm-1.30am; Wednesday-Saturday) established sexual violence awareness, myth acceptance, and experience, and confidence to intervene. Participant's socio-demographics, nightlife alcohol consumption, and frequency of nightlife usage were collected. RESULTS: 58.0% had ever experienced sexual violence whilst on a night out. In adjusted analyses, sexual violence was higher amongst females (adjusted odds ratio [AOR] 4.0; p < 0.001), and regular nightlife patrons (AOR 2.1; p < 0.05). The majority agreed that they would feel confident asking someone who has experienced sexual violence if they are okay/would like support (92.2%). In adjusted analyses, confidence to intervene was higher amongst those who agreed that sexual violence was an issue in nightlife (AOR 3.6; p < 0.05), however it reduced as sexual violence myth acceptance increased (AOR 0.5; p < 0.05). CONCLUSION: Sexual violence is a pertinent issue in nightlife. Programmes aiming to address nightlife-related sexual violence must address the wider social norms that promote sexual violence, and ensure patrons understand the extent and significance of the issue, to increase confidence to positively intervene.


Asunto(s)
Intoxicación Alcohólica , Delitos Sexuales , Femenino , Humanos , Estudios Transversales , Consumo de Bebidas Alcohólicas , Delitos Sexuales/prevención & control , Encuestas y Cuestionarios
5.
Inorganica Chim Acta ; 5622024 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-38282819

RESUMEN

Metal complexes have gained significant attention as potential anti-cancer agents. The anti-cancer activity of [Co(phen)2(MeATSC)](NO3)3•1.5H2O•C2H5OH 1 (where phen = 1,10-phenanthroline and MeATSC = 9-anthraldehyde-N(4)-methylthiosemicarbazone) and [Cu(acetylethTSC)Cl]Cl•0.25C2H5OH 2 (where acetylethTSC = (E)-N-ethyl-2-[1-(thiazol-2-yl)ethylidene]hydrazinecarbothioamide) was investigated by analyzing DNA cleavage activity. The cytotoxic effect was analyzed using CCK-8 viability assay. The activities of caspase 3/7, 9, and 1, reactive oxygen species (ROS) production, cell cycle arrest, and mitochondrial function were further analyzed to study the cell death mechanisms. Complex 2 induced a significant increase in nicked DNA. The IC50 values of complex 1 were 17.59 µM and 61.26 µM in cancer and non-cancer cells, respectively. The IC50 values of complex 2 were 5.63 and 12.19 µM for cancer and non-cancer cells, respectively. Complex 1 induced an increase in ROS levels, mitochondrial dysfunction, and activated caspases 3/7, 9, and 1, which indicated the induction of intrinsic apoptotic pathway and pyroptosis. Complex 2 induced cell cycle arrest in the S phase, ROS generation, and caspase 3/7 activation. Thus, complex 1 induced cell death in the breast cancer cell line via activation of oxidative stress which induced apoptosis and pyroptosis while complex 2 induced cell cycle arrest through the induction of DNA cleavage.

6.
Int J Lang Commun Disord ; 59(4): 1553-1577, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38329409

RESUMEN

BACKGROUND: People with behavioural variant frontotemporal dementia, Lewy body dementia, posterior cortical atrophy and young onset Alzheimer's disease may experience language and communication difficulties. However, the role of speech and language interventions for people with these non-language led dementias has received little attention. AIMS: This study aimed to explore the experiences and perspectives of people living with these conditions, and their families, regarding their language and communication difficulties and how speech and language therapy could address these needs. METHODS: This study employed a qualitative design to explore the experiences of people living with or caring for somebody with behavioural variant frontotemporal dementia, Lewy body dementia, posterior cortical atrophy or young onset Alzheimer's disease, and to understand their opinions about speech and language therapy. Participants were recruited from a support service connected to a dementia clinic to attend one of five focus group meetings. Videorecorded focus groups and interviews were transcribed, and reflexive thematic analysis was used to analyse data from people affected by each type of dementia. RESULTS: A total of 25 participants were recruited to the study, with representation across the different forms of non-language led dementias. The four main themes identified were: (1) communication difficulties as a key difficulty, (2) loss and loneliness, (3) speech and language therapy, and (4) the role of the caregiver. Sixteen subthemes were also identified which highlighted individual issues across disease types. DISCUSSION: Although all the forms of dementia studied here are not considered to be language-led, people with these conditions and/or their care partners identified speech, language and communication as common challenges. These communication difficulties were reported to have a negative impact on their social participation and mental health and participants felt speech and language interventions could help. There is a need for research exploring speech and language interventions developed for and with people with non-language led dementias and their care partners, to ensure they meet the needs of the people they are designed for. WHAT THIS PAPER ADDS: What is already known on the subject People with primary progressive aphasia present with speech, language and communication difficulties, and several speech and language interventions have been developed to meet the needs of this population. However, people with non-language led dementias may also experience speech, language and communication difficulties, and little is known about interventions that may address these difficulties. What this paper adds to existing knowledge People living with or caring for somebody with behavioural variant frontotemporal dementia, Lewy body dementia, posterior cortical atrophy and young onset Alzheimer's disease report experiencing speech, language and communication difficulties that impact on the person with dementia's social participation and mood. Participants in this study also shared their opinions about how speech and language interventions could help, from the earliest stages of the disease. What are the potential or actual clinical implications of this work? Speech and language therapists need to address the individual speech, language and communication needs of people with dementias, even those that are not thought to be language-led. Current speech and language therapy service provision does not meet the needs of people with non-language led dementias and further research is required to develop interventions and services to meet these needs.


Asunto(s)
Trastornos de la Comunicación , Demencia , Terapia del Lenguaje , Humanos , Masculino , Femenino , Persona de Mediana Edad , Anciano , Trastornos de la Comunicación/psicología , Trastornos de la Comunicación/terapia , Demencia/psicología , Demencia/terapia , Demencia/complicaciones , Terapia del Lenguaje/métodos , Investigación Cualitativa , Logopedia/métodos , Grupos Focales , Cuidadores/psicología , Edad de Inicio , Adulto , Enfermedad por Cuerpos de Lewy/psicología , Enfermedad por Cuerpos de Lewy/complicaciones , Enfermedad por Cuerpos de Lewy/terapia , Enfermedad de Alzheimer/psicología , Enfermedad de Alzheimer/terapia , Enfermedad de Alzheimer/complicaciones , Demencia Frontotemporal/psicología , Demencia Frontotemporal/terapia , Demencia Frontotemporal/complicaciones
7.
Support Care Cancer ; 31(12): 662, 2023 Nov 02.
Artículo en Inglés | MEDLINE | ID: mdl-37914916

RESUMEN

PURPOSE: This study explored colorectal and endometrial cancer survivors' experiences of participation in a wearable intervention and the dimensions that influenced intervention engagement and physical activity behaviour change. METHODS: Semi-structured interviews (n= 23) were conducted with intervention participants (mean age 65.8 (SD ±7.1) and analysed using thematic analysis. RESULTS: Four main themes were identified: (i) commitment, (ii) accountability and monitoring, (iii) routine, (iv) Fitbit as health coach. Those that assigned a higher priority to PA were more likely to schedule PA and be successful in PA change. Those less successful presented more barriers to change and engaged in more incidental PA. The Fitbit acting as health coach was the active ingredient of the intervention. CONCLUSIONS: Commitment evidenced through prioritising PA was the foundational dimension that influenced PA engagement. Interventions that foster commitment to PA through increasing the value and importance of PA would be worthwhile. Wearables holds great promise in PA promotion and harnessing the technique of discrepancy between behaviour and goals is likely a valuable behaviour change technique.


Asunto(s)
Neoplasias Colorrectales , Neoplasias Endometriales , Dispositivos Electrónicos Vestibles , Anciano , Femenino , Humanos , Ejercicio Físico , Sobrevivientes , Tecnología
8.
Epilepsia ; 63(8): 1889-1898, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35582761

RESUMEN

Many brain insults and injuries are "epileptogenic": they increase the risk of developing epilepsy. It is desirable to identify treatments that are "antiepileptogenic": treatments that prevent the development of epilepsy, if administered after the occurrence of an epileptogenic insult. Current antiepileptic drugs are not antiepileptogenic, but evidence of antiepileptogenic efficacy is accumulating for a growing number of other compounds. From among these candidate compounds, statins are deserving of particular attention because statins are reported to be antiepileptogenic in more published studies and in a wider range of brain insults than any other individual or class of compounds. Although many studies report the antiepileptogenic effect of statins, it is unclear how many studies provide evidence that statins exhibit the following two essential features of a clinically viable antiepileptogenic drug: the drug must exert an antiepileptogenic effect even if it is initiated after the epileptogenic brain insult has already occurred, and the antiepileptogenic effect must endure even after the drug has been discontinued. In the current work, we interrogate published preclinical and clinical studies, to determine if statins fulfill these essential requirements. There are eight different statins in clinical use. To enable the clinical use of one of these statins for antiepileptogenesis, its antiepileptogenic effect will have to be established through future time- and resource-intensive clinical trials. Therefore, it is desirable to review the published literature to determine which of the statins emerges as the most promising candidate for antiepileptogenic therapy. Hence, in the current work, we also collate and analyze published data-clinical and pre-clinical, direct and indirect-that help to answer the question: Which statin is the most promising candidate to take forward into an antiepileptogenesis clinical trial?


Asunto(s)
Epilepsia , Inhibidores de Hidroximetilglutaril-CoA Reductasas , Anticonvulsivantes/uso terapéutico , Encéfalo , Epilepsia/etiología , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico
9.
Psychooncology ; 30(2): 221-230, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-32920935

RESUMEN

OBJECTIVE: Interventions to increase physical activity (PA) in cancer survivors have often adopted a "one-size-fits-all" approach and may benefit from being tailored to psychological constructs associated with behavior. The study objective was to investigate the exercise preferences and psychological constructs related to PA among cancer survivors. METHODS: Posttreatment colorectal, endometrial, and breast cancer survivors (n = 183) living in metropolitan and nonmetropolitan areas completed survey measures of PA, exercise preferences, attitudes, self-efficacy, perceived behavioral control (PBC), and intention toward PA. RESULTS: A structural equation model with adequate fit and quality indices revealed that instrumental attitude and self-efficacy were related to PA intention. Intention was related to behavior and mediated the relationship between self-efficacy and behavior. Preferred exercise intensity was related to self-efficacy, PBC, attitudes, and intention, while preferred exercise company was related to self-efficacy and PBC. Participants preferred moderate-intensity PA (71%), specifically self-paced (52%) walking (65%) in an outdoor environment (58%). CONCLUSIONS: Since instrumental attitude and self-efficacy were associated with PA, incorporating persuasive communications targeting attitudes in PA interventions may promote PA participation. As cancer survivors who prefer low-intensity exercise and exercising with others report lower self-efficacy and PBC, interventions targeting confidence and successful experience in this group may also be warranted.


Asunto(s)
Supervivientes de Cáncer/psicología , Ejercicio Físico/psicología , Población Urbana/estadística & datos numéricos , Anciano , Australia , Supervivientes de Cáncer/estadística & datos numéricos , Femenino , Humanos , Intención , Masculino , Persona de Mediana Edad , Autoeficacia , Encuestas y Cuestionarios
10.
Support Care Cancer ; 29(4): 1969-1976, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32827055

RESUMEN

PURPOSE: Cancer survivors are at risk of comorbidities and mortality, and those living outside of metropolitan areas are particularly susceptible given poorer socioeconomic, health and support resources. As engagement in health behaviours is affected by participants' autonomous motives, investigation of the motives of cancer survivors in metropolitan and non-metropolitan areas could elucidate the values and reasons for practising health behaviours, allowing programs to be tailored to these motives. METHODS: Metropolitan (n = 103) and non-metropolitan (n = 80) Australian cancer survivors completed a survey item by describing their motives for physical activity and healthy diet change. Inductive thematic analysis of responses was performed to establish themes across health behaviour motives. RESULTS: Analyses revealed four themes: to be able to, longevity, psychological health and appearance. Survivors primarily referred to being able to enjoy family, leisure activities, travel and staying independent, with these motives often linked to longevity. Motives were similar across locations; however, those in non-metropolitan locations reported continuation of work and pain relief more frequently. Female survivors more often reported weight loss. CONCLUSIONS: A predominant motive for health behaviour change in cancer survivors across geographical location was the ability to enjoy family and engage in leisure and work activities. Programs aiming to promote health behaviours in cancer survivors might consider framing interventions accordingly by emphasizing benefits of longevity and maintaining independence.


Asunto(s)
Conductas Relacionadas con la Salud/fisiología , Neoplasias/psicología , Australia , Supervivientes de Cáncer/psicología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Motivación , Encuestas y Cuestionarios
11.
Clin Invest Med ; 44(2): E19-26, 2021 06 14.
Artículo en Inglés | MEDLINE | ID: mdl-34152703

RESUMEN

PURPOSE: Hematopoietic cell transplantation (HCT) is associated with significant risk prior to hematopoietic engraftment. Endurance exercise can modify the bone marrow microenvironment, alter hematopoiesis and accelerate hematopoietic regeneration in mouse models of transplantation. METHODS: A systematic review was conducted to clarify the impact of exercise on clinically relevant hemato-logical outcomes in patients following HCT. RESULTS: A systematic search of the literature identified 13 studies (total of 615 participants; 313 in study arms). Studies included exercise regimens that were primarily low-to-moderate intensity. A total of five studies re-ported on engraftment and length of stay, which were largely unchanged with intervention. Rates of graft-ver-sus host disease were reported in six studies whereas red cell and platelet transfusion needs were reported in four studies, neither of which was different with exercise. Survival was reported in four studies and was significantly improved by exercise in one study. CONCLUSIONS: Exercise in patients receiving HCT appears feasible and safe. Heterogeneity in type and intensity of exercise was observed and few studies examined high intensity exercise. Outcome reporting was inconsis-tent regarding transplant-related outcomes. Standardized hematological outcome measures are needed to clarify the impact of higher intensity exercise on HCT.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas , Animales , Ejercicio Físico , Humanos , Ratones
12.
Cancer Causes Control ; 31(5): 403-416, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32130573

RESUMEN

PURPOSE: The risk of being diagnosed with contralateral breast cancer (CBC) is an important health issue among breast cancer survivors. There is an increasing interest in the effect of lifestyle and reproductive factors on CBC risk, since these factors may partly be modifiable. We performed a systematic review and meta-analysis and aimed to evaluate the impact of lifestyle and reproductive factors on CBC risk in population-based breast cancer studies. METHODS: The PubMed electronic database was searched up to 2nd November 2019, for relevant publications. Of the included studies, a meta-analysis per lifestyle or reproductive factor was performed. RESULTS: Thirteen out of 784 publications were used for the meta-analysis. Body mass index (≥ 25 vs. < 25 kg/m2; RR = 1.22; 95% CI 1.01-1.47) was associated with increased CBC risk. The estimates for alcohol use (ever vs. never; RR = 1.15; 95% CI 1.02-1.31) and age at primiparity (≥ 25 vs. < 25 years; RR = 1.06; 95% CI 1.02-1.10) also showed an association with increased CBC risk. For parity (≥ 4 vs. nulliparous; RR = 0.56; 95% CI 0.42-0.76) and age at menopause (< 45 vs ≥ 45 years; RR = 0.79; 95% CI 0.67-0.93), results from two studies suggested a decreased CBC risk. We observed no association between CBC and smoking, age at menarche, oral contraceptive use, gravidity, breastfeeding, or menopausal status. Overall, the number of studies per risk factor was limited (n = 2-5). CONCLUSIONS: BMI is a modifiable risk factor for CBC. Data on the effect of other modifiable lifestyle and reproductive factors are limited. For better counseling of patients on lifestyle effects, more studies are urgently needed.


Asunto(s)
Neoplasias de la Mama/etiología , Estilo de Vida , Neoplasias Primarias Secundarias/etiología , Adulto , Índice de Masa Corporal , Femenino , Humanos , Menopausia , Persona de Mediana Edad , Paridad , Embarazo , Historia Reproductiva , Factores de Riesgo , Adulto Joven
13.
Ann Surg ; 269(3): 520-529, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-29068800

RESUMEN

OBJECTIVE AND BACKGROUND: Local and distant disease recurrence are frequently observed following pancreatic cancer resection, but an improved understanding of resection margin assessment is required to aid tailored therapies. METHODS: Analyses were carried out to assess the association between clinical characteristics and margin involvement as well as the effects of individual margin involvement on site of recurrence and overall and recurrence-free survival using individual patient data from the European Study Group for Pancreatic Cancer (ESPAC)-3 randomized controlled trial. RESULTS: There were 1151 patients, of whom 505 (43.9%) had an R1 resection. The median and 95% confidence interval (CI) overall survival was 24.9 (22.9-27.2) months for 646 (56.1%) patients with resection margin negative (R0 >1 mm) tumors, 25.4 (21.6-30.4) months for 146 (12.7%) patients with R1<1 mm positive resection margins, and 18.7 (17.2-21.1) months for 359 (31.2%) patients with R1-direct positive margins (P < 0.001). In multivariable analysis, overall R1-direct tumor margins, poor tumor differentiation, positive lymph node status, WHO performance status ≥1, maximum tumor size, and R1-direct posterior resection margin were all independently significantly associated with reduced overall and recurrence-free survival. Competing risks analysis showed that overall R1-direct positive resection margin status, positive lymph node status, WHO performance status 1, and R1-direct positive superior mesenteric/medial margin resection status were all significantly associated with local recurrence. CONCLUSIONS: R1-direct resections were associated with significantly reduced overall and recurrence-free survival following pancreatic cancer resection. Resection margin involvement was also associated with an increased risk for local recurrence.


Asunto(s)
Antineoplásicos/uso terapéutico , Carcinoma Ductal Pancreático/tratamiento farmacológico , Márgenes de Escisión , Recurrencia Local de Neoplasia/etiología , Pancreatectomía , Neoplasias Pancreáticas/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma Ductal Pancreático/mortalidad , Carcinoma Ductal Pancreático/patología , Carcinoma Ductal Pancreático/cirugía , Quimioterapia Adyuvante , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapéutico , Fluorouracilo/uso terapéutico , Humanos , Leucovorina/uso terapéutico , Recurrencia Local de Neoplasia/mortalidad , Neoplasias Pancreáticas/mortalidad , Neoplasias Pancreáticas/patología , Neoplasias Pancreáticas/cirugía , Pronóstico , Estudios Prospectivos , Estudios Retrospectivos , Análisis de Supervivencia , Gemcitabina
14.
Psychooncology ; 28(7): 1420-1429, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30980691

RESUMEN

OBJECTIVE: The objective of this study was to ascertain whether wearable technology coupled with action planning was effective in increasing physical activity (PA) in colorectal and endometrial cancer survivors at cardiovascular risk. METHODS: Sixty-eight survivors who had cardiovascular risk factors and were insufficiently active were randomized to intervention and control arms. Intervention participants were given a wearable tracker for 12 weeks, two group sessions, and a support phone call. Participants in the control arm received print materials describing PA guidelines. Assessments at baseline and 12 weeks measured triaxial and uniaxial estimates of moderate-vigorous physical activity (MVPA), sedentary behaviour, blood pressure, and body mass index (BMI). RESULTS: The intervention group significantly increased MVPA by 45 min/wk compared with a reduction of 21 min/wk in the control group. Group by time interactions were significant for minutes of MVPA (F1,126  = 5.14, P = 0.025). For those with diastolic hypertension, there was a significant group by time interaction (F1,66  = 4.89, P = 0.031) with a net reduction of 9.89 mm Hg in the intervention group. CONCLUSIONS: Significant improvements in MVPA were observed following the intervention. The results display promise for the use of pragmatic, low-intensity interventions using wearable technology.


Asunto(s)
Supervivientes de Cáncer/psicología , Neoplasias Colorrectales/rehabilitación , Neoplasias Endometriales/rehabilitación , Ejercicio Físico/psicología , Promoción de la Salud/métodos , Índice de Masa Corporal , Neoplasias Colorrectales/psicología , Neoplasias Endometriales/psicología , Femenino , Conductas Relacionadas con la Salud , Humanos , Masculino , Persona de Mediana Edad , Calidad de Vida/psicología , Conducta Sedentaria
15.
Appetite ; 132: 222-229, 2019 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-30082103

RESUMEN

Food insecurity is associated with high body weight for women but not men in affluent Western societies. However, it is not currently known what behavioural or psychological mechanisms drive this association. Moreover, it is also unknown whether only current experience of food insecurity in adulthood is important, or there are lasting effects of childhood experience. We carried out a mock 'taste test' where 126 adult volunteers had the opportunity to consume and rate senergy-dense snack foods. Current food insecurity was measured using the standard USDA measure, and in addition, we used a novel measure that also captures childhood experience of food insecurity. As well as the expected gender-specific association between current food insecurity and body weight, we found some evidence for associations between food insecurity and calorie consumption in the taste test, and liking of one of the foods, chocolate. However, associations between current food insecurity and the outcomes were moderated by childhood experience of food insecurity, with greater childhood food insecurity enhancing the positive effect of current food insecurity on body weight, but attenuating the positive effect of food insecurity on calorie consumption and liking for chocolate. These findings are exploratory, but they suggest that any effects of food insecurity in adulthood on eating and the hedonic value of foods may be moderated by childhood experience.


Asunto(s)
Ingestión de Alimentos/psicología , Abastecimiento de Alimentos , Adolescente , Adulto , Anciano , Índice de Masa Corporal , Niño , Chocolate , Correlación de Datos , Ingestión de Energía , Femenino , Preferencias Alimentarias , Humanos , Masculino , Persona de Mediana Edad , Bocadillos , Adulto Joven
16.
Support Care Cancer ; 26(4): 1289-1295, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29090387

RESUMEN

PURPOSE: The purposes of this study are to investigate factors influencing non-participation in a structured exercise program for cancer survivors and to explore survivors' experiences and attitudes in relation to physical activity participation. METHODS: Face-to-face or telephone interviews were conducted with individuals who had registered for, or engaged in, the 'Life Now' exercise program run by Cancer Council Western Australia. Participants were 20 cancer survivors (mean age 63.90 years, SD 15.29) who had either cancelled their registration or withdrawn from the exercise program during the preceding 2 years. Interview transcripts were analysed using thematic analysis. RESULTS: Seven main themes emerged: availability of the program; access, time and cost; lack of motivation or confidence; unwell or fatigued; physical activity preferences; knowledge of physical activity guidelines; and lack of referral or advice. The main barriers were contextual and included availability of, and access to, the program. Participants expressed a preference for home-based physical activity. CONCLUSIONS: Interventions aimed at promoting physical activity in cancer survivors should offer home-based programs and include referral and advice from oncologists. IMPLICATIONS FOR CANCER SURVIVORS: Increasing cancer survivors' participation in, and compliance with, exercise programs may require home-based strategies and referrals from oncologists to allied health professionals to individualise care.


Asunto(s)
Supervivientes de Cáncer/psicología , Ejercicio Físico/psicología , Neoplasias/psicología , Cooperación del Paciente/psicología , Adulto , Anciano , Anciano de 80 o más Años , Terapia por Ejercicio/métodos , Terapia por Ejercicio/psicología , Fatiga/psicología , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad , Motivación , Neoplasias/rehabilitación , Australia Occidental , Adulto Joven
17.
Psychooncology ; 26(6): 808-814, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-27478009

RESUMEN

BACKGROUND: Lifestyle factors including inadequate physical activity may contribute to increased risk of developing cardiovascular disease in colorectal cancer survivors. Identification of the barriers to physical activity is important for forming an evidence base of factors to target in future physical activity programs aimed at improving cardiovascular health in this population. METHODS: Colorectal cancer survivors (N = 24) from St. John of God Subiaco Hospital participated in semi-structured interviews about their current physical activity behaviors and perceived barriers to physical activity. RESULTS: Inductive thematic analysis of interviews revealed 5 overarching themes relating to barriers to physical activity: psychological barriers, environmental barriers, knowledge of guidelines, lack of practitioner support, and energy/age barriers. CONCLUSIONS: Novel findings revealed participants' dependence on practitioner support, including a reliance on practitioners to recommend lifestyle change. Survivors also revealed that regular checkups to monitor cardiovascular risk replaced the need for healthy lifestyle changes. IMPLICATIONS: With survivors holding the advice of clinicians in high regard, an opportunity exists for clinicians to facilitate lifestyle change. Health care professionals such as nurses can implement motivational strategies and provide additional health information during follow-up visits, to ensure long-term adherence. Individuals who reported psychological, motivational, and environmental barriers may benefit from interventions to improve self-regulation, planning, and problem-solving skills.


Asunto(s)
Supervivientes de Cáncer/psicología , Neoplasias Colorrectales/terapia , Ejercicio Físico/psicología , Anciano , Supervivientes de Cáncer/estadística & datos numéricos , Enfermedades Cardiovasculares/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Motivación , Factores de Riesgo , Conducta Sedentaria
18.
Psychooncology ; 26(2): 199-205, 2017 02.
Artículo en Inglés | MEDLINE | ID: mdl-26935994

RESUMEN

PURPOSE: The purpose of the study was to explore colorectal cancer survivors' health perceptions following cessation of active treatment for cancer and to explore the factors influencing participation in health-promoting behaviors that may help reduce cardiovascular disease risk. METHODS: Face-to-face interviews were conducted with participants that had completed active treatment for cancer within the previous 2 years. Participants were colorectal cancer survivors (N = 24, men = 11, women = 13, M age = 69.38 years, SD = 4.19) recruited from a private hospital in Perth, Australia on the basis that they had existing morbidities that put them at increased risk of cardiovascular disease. Interview transcripts were analyzed using thematic analysis. RESULTS: Five main themes emerged: back to normal; the pleasures in life: 'is it worth it?'; beliefs about health behavior; skepticism of eating guidelines; and lack of motivation. The majority of participants felt they were in good health and had made a full recovery. Participants questioned whether it was worth changing their lifestyle given their life stage and referred to the desire to enjoy life. Lay health beliefs, skepticism of eating guidelines, and a lack of motivation were barriers to change. CONCLUSIONS: Interventions should target lay beliefs and skepticism in relation to health behaviors in order to reinforce the importance and value of participating in health-related behavior. IMPLICATIONS FOR CANCER SURVIVORS: Findings may inform the development of effective, patient-centered interventions that target lay health beliefs and build motivation for health behavior change. Copyright © 2016 John Wiley & Sons, Ltd.


Asunto(s)
Supervivientes de Cáncer/psicología , Neoplasias Colorrectales/psicología , Conductas Relacionadas con la Salud , Autoeficacia , Actividades Cotidianas , Anciano , Actitud Frente a la Salud , Australia , Neoplasias Colorrectales/rehabilitación , Femenino , Humanos , Estilo de Vida , Masculino , Persona de Mediana Edad , Investigación Cualitativa
19.
CJC Open ; 6(7): 893-900, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-39026620

RESUMEN

Background: Embracing patient viewpoints can enhance the translation of novel therapeutics to clinical settings. This study evaluated the acceptability of using extracellular vesicles (EVs) as a biological therapy for preventing postoperative atrial fibrillation (AF), through engagement with patients, providing insights into their attitudes and information needs. Methods: Patients participated in prerecorded presentations, virtual focus groups, and surveys to assess their perspectives on EV therapy and determine the factors influencing their acceptance of the intervention. Results: Participants with postoperative AF experienced prolonged intensive care unit and hospital stays, compared to those of patients with normal heart rhythm. Prior to the presentation, a number of participants were unfamiliar with postoperative AF and biological therapies. However, postpresentation and post-focus group activities resulted in enhanced understanding of the research, with high levels of comprehension reported by all participants. The level of acceptance of EV therapy tended to increase, with a majority expressing willingness to participate in clinical trials and accept the therapy. The focus groups identified and addressed common questions regarding the potential risks and side effects of EVs, their source, dosing, utility for patients with preexisting AF, and the risk of human immunodeficiency virus (HIV) contraction or allergic reactions. Conclusions: The study highlights the importance of providing education, involving the patient's circle of care, and addressing patient concerns, to promote acceptance of therapies such as EV therapy for postoperative AF. Clinical Trial Registration: NCT05032495.


Contexte: Adopter le point de vue des patients permet de faciliter l'introduction de nouveaux traitements en milieu clinique. Cette étude visait à évaluer l'acceptabilité des vésicules extracellulaires comme traitement biologique dans la prévention de la fibrillation auriculaire postopératoire en favorisant un rapprochement avec les patients, en comprenant leurs attitudes et leurs besoins d'information. Méthodologie: Les patients ont assisté à des présentations préenregistrées, ont participé à des groupes de discussion virtuels et ont rempli des questionnaires. L'objectif était d'évaluer leur point de vue sur les vésicules extracellulaires et de déterminer les facteurs influençant l'acceptation de l'intervention. Résultats: Les participants atteints de fibrillation auriculaire postopératoire sont restés plus longtemps à l'unité des soins intensifs et à l'hôpital par comparaison aux patients ayant un rythme cardiaque normal. Avant la présentation, un certain nombre de participants ne connaissaient pas la fibrillation auriculaire postopératoire et les traitements biologiques. Cependant, après la présentation et le groupe de discussion, les participants ont pu mieux comprendre la recherche, et tous ont indiqué un niveau de compréhension élevé. Le degré d'acceptation des vésicules extracellulaires avait tendance à augmenter. En effet, la majorité des patients se disait prête à participer à des essais cliniques et à accepter le traitement. Les groupes de discussion ont relevé et abordé des questions communes concernant les risques et effets secondaires des vésicules extracellulaires, leur source, leur dose, leur utilité pour les patients présentant une fibrillation auriculaire préexistante et le risque d'infection par le virus de l'immunodéficience humaine (VIH) ou de réactions allergiques. Conclusions: L'étude souligne l'importance de l'éducation, de la participation du réseau de soins du patient et de la prise en compte des préoccupations du patient pour favoriser l'acceptation de traitements comme les vésicules extracellulaires pour la fibrillation auriculaire postopératoire. Enregistrement de l'essai clinique: NCT05032495.

20.
PLoS One ; 19(3): e0298150, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38457379

RESUMEN

PURPOSE: Social determinants of health and poor working conditions contribute to excessive sickness absence and attrition in contact centre advisors. With no recent review conducted, the current scoping review is needed to investigate the volume, effectiveness, acceptability, and feasibility of health-promoting interventions for contact centre advisors. This will inform the adoption and implementation of evidence-based practice, and future research. METHODS: Searches conducted across four databases (MEDLINE, PsycInfo, CINAHL, Web of Science) and reference checking in February 2023 identified health-promoting interventions for contact centre advisors. Extracted and coded data from eligible interventions were systematically synthesised using the nine intervention functions of the Behaviour Change Wheel and behaviour change technique taxonomy. RESULTS: This scoping review identified a low number of high quality and peer-reviewed health-promoting intervention studies for contact centre advisors (28 studies since 2002). Most interventions were conducted in high-income countries with office-based advisors, predominantly using environmental restructuring and training strategies to improve health. Most interventions reported positive effectiveness results for the primary intended outcomes, which were broadly organised into: i) health behaviours (sedentary behaviour, physical activity, smoking); ii) physical health outcomes (musculoskeletal health, visual health, vocal health, sick building syndrome); iii) mental health outcomes (stress, job control, job satisfaction, wellbeing). Few interventions evaluated acceptability and feasibility. CONCLUSION: There is little evidence on the effectiveness, acceptability, and feasibility of health-promoting interventions for contact centre advisors. Evidence is especially needed in low-to-middle income countries, and for remote/hybrid, nightshift, older and disabled advisors.


Asunto(s)
Ejercicio Físico , Promoción de la Salud , Salud Laboral , Humanos , Terapia Conductista , Conducta Sedentaria
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