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1.
Glob Ment Health (Camb) ; 10: e16, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37854402

RESUMO

This paper proposes a framework for comprehensive, collaborative, and community-based care (C4) for accessible mental health services in low-resource settings. Because mental health conditions have many causes, this framework includes social, public health, wellness and clinical services. It accommodates integration of stand-alone mental health programs with health and non-health community-based services. It addresses gaps in previous models including lack of community-based psychotherapeutic and social services, difficulty in addressing comorbidity of mental and physical conditions, and how workers interact with respect to referral and coordination of care. The framework is based on task-shifting of services to non-specialized workers. While the framework draws on the World Health Organization's Mental Health Gap Action Program and other global mental health models, there are important differences. The C4 Framework delineates types of workers based on their skills. Separate workers focus on: basic psychoeducation and information sharing; community-level, evidence-based psychotherapeutic counseling; and primary medical care and more advanced, specialized mental health services for more severe or complex cases. This paper is intended for individuals, organizations and governments interested in implementing mental health services. The primary aim is to provide a framework for the provision of widely accessible mental health care and services.

2.
Adv Nutr ; 14(3): 539-554, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36822240

RESUMO

Meta-analyses have not examined the prophylactic use of orally ingested probiotics, prebiotics, and synbiotics for preventing gastrointestinal tract infections (GTIs) of various etiologies in adult populations, despite evidence that these gut microbiota-targeted interventions can be effective in treating certain GTIs. This systematic review and meta-analysis aimed to estimate the effects of prophylactic use of orally ingested probiotics, prebiotics, and synbiotics on GTI incidence, duration, and severity in nonelderly, nonhospitalized adults. CENTRAL, PubMed, Scopus, and Web of Science were searched through January 2022. English-language, peer-reviewed publications of randomized, placebo-controlled studies testing an orally ingested probiotic, prebiotic, or synbiotic intervention of any dose for ≥1 wk in adults who were not hospitalized, immunosuppressed, or taking antibiotics were included. Results were analyzed using random-effects meta-analyses of intention-to-treat (ITT) and complete case (CC) cohorts. Heterogeneity was explored by subgroup meta-analysis and meta-regression. The risk of bias was assessed using the Cochrane risk-of-bias 2 tool. Seventeen publications reporting 20 studies of probiotics (n = 16), prebiotics (n = 3), and synbiotics (n = 1) were identified (n > 6994 subjects). In CC and ITT analyses, risk of experiencing ≥1 GTI was reduced with probiotics (CC analysis-risk ratio: 0.86; 95% CI: 0.73, 1.01) and prebiotics (risk ratio: 0.80; 95% CI: 0.66, 0.98). No effects on GTI duration or severity were observed. Sources of heterogeneity included the study population and number of probiotic strains administered but were often unexplained, and a high risk of bias was observed for most studies. The specific effects of individual probiotic strains and prebiotic types could not be assessed owing to a lack of confirmatory studies. Findings indicated that both orally ingested probiotics and prebiotics, relative to placebo, demonstrated modest benefit for reducing GTI risk in nonelderly adults. However, results should be interpreted cautiously owing to the low number of studies, high risk of bias, and unexplained heterogeneity that may include probiotic strain-specific or prebiotic-specific effects. This review was registered at PROSPERO as CRD42020200670.


Assuntos
Doenças Transmissíveis , Gastroenteropatias , Probióticos , Simbióticos , Adulto , Humanos , Prebióticos , Probióticos/uso terapêutico
3.
Sci Rep ; 13(1): 213, 2023 01 05.
Artigo em Inglês | MEDLINE | ID: mdl-36604516

RESUMO

Sleep restriction alters gut microbiota composition and intestinal barrier function in rodents, but whether similar effects occur in humans is unclear. This study aimed to determine the effects of severe, short-term sleep restriction on gut microbiota composition and intestinal permeability in healthy adults. Fecal microbiota composition, measured by 16S rRNA sequencing, and intestinal permeability were measured in 19 healthy men (mean ± SD; BMI 24.4 ± 2.3 kg/m2, 20 ± 2 years) undergoing three consecutive nights of adequate sleep (AS; 7-9 h sleep/night) and restricted sleep (SR; 2 h sleep/night) in random order with controlled diet and physical activity. α-diversity measured by amplicon sequencing variant (ASV) richness was 21% lower during SR compared to AS (P = 0.03), but α-diversity measured by Shannon and Simpson indexes did not differ between conditions. Relative abundance of a single ASV within the family Ruminococcaceae was the only differentially abundant taxon (q = 0.20). No between-condition differences in intestinal permeability or ß-diversity were observed. Findings indicated that severe, short-term sleep restriction reduced richness of the gut microbiota but otherwise minimally impacted community composition and did not affect intestinal permeability in healthy young men.


Assuntos
Microbioma Gastrointestinal , Adulto , Masculino , Humanos , RNA Ribossômico 16S/genética , Intestinos , Sono , Fezes , Permeabilidade
4.
Epidemiol Psychiatr Sci ; 31: e81, 2022 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-36377410

RESUMO

AIMS: There is increasing evidence that brief psychological interventions delivered by lay providers can reduce common mental disorders in the short-term. This study evaluates the longer-term impact of a brief, lay provider delivered group psychological intervention (Group Problem Management Plus; gPM+) on the mental health of refugees and their children's mental health. METHODS: This single-blind, parallel, controlled trial randomised 410 adult Syrians in Azraq Refugee Camp in Jordan who screened positive for distress and impaired functioning to either five sessions of gPM+ or enhanced usual care (EUC). Primary outcomes were scores on the Hopkins Symptom Checklist-25 (HSCL-25; depression and anxiety scales) assessed at baseline, 6 weeks, 3 months and 12 months Secondary outcomes included disability, posttraumatic stress, personally identified problems, prolonged grief, prodromal psychotic symptoms, parenting behaviour and children's mental health. RESULTS: Between 15 October 2019 and 2 March 2020, 204 participants were assigned to gPM + and 206 to EUC, and 307 (74.9%) were retained at 12 months. Intent-to-treat analyses indicated that although participants in gPM + had greater reductions in depression at 3 months, at 12 months there were no significant differences between treatment arms on depression (mean difference -0.9, 95% CI -3.2 to 1.3; p = 0.39) or anxiety (mean difference -1.7, 95% CI -4.8 to -1.3; p = 0.06). There were no significant differences between conditions for secondary outcomes except that participants in gPM + had greater increases in positive parenting. CONCLUSIONS: The short-term benefits of a brief, psychological programme delivered by lay providers may not be sustained over longer time periods, and there is a need for sustainable programmes that can prolong benefits gained through gPM + .


Assuntos
Transtornos Mentais , Refugiados , Humanos , Adulto , Criança , Refugiados/psicologia , Intervenção Psicossocial , Síria , Psicoterapia , Método Simples-Cego , Seguimentos , Jordânia , Transtornos Mentais/terapia
5.
Am J Physiol Endocrinol Metab ; 323(5): E435-E447, 2022 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-36044708

RESUMO

Posttranscriptional regulation by microRNA (miRNA) facilitates exercise and diet-induced skeletal muscle adaptations. However, the impact of diet on miRNA expression during postexercise recovery remains unclear. The objective of this study was to examine the effects of consuming carbohydrate or a nutrient-free control on skeletal muscle miRNA expression during 3 h of recovery from aerobic exercise. Using a randomized, crossover design, seven men (means ± SD, age: 21 ± 3 yr; body mass: 83 ± 13 kg; V̇o2peak: 43 ± 2 mL/kg/min) completed two-cycle ergometry glycogen depletion trials followed by 3 h of recovery while consuming either carbohydrate (CHO: 1 g/kg/h) or control (CON: nutrient free). Muscle biopsy samples were obtained under resting fasted conditions at baseline and at the end of the 3-h recovery (REC) period. miRNA expression was determined using unbiased RT-qPCR microarray analysis. Trials were separated by 7 days. Twenty-five miRNAs were different (P < 0.05) between CHO and CON at REC, with Let7i-5p and miR-195-5p being the most predictive of treatment. In vitro overexpression of Let7i-5p and miR-195-p5 in C2C12 skeletal muscle cells decreased (P < 0.05) the expression of protein breakdown (Foxo1, Trim63, Casp3, and Atf4) genes, ubiquitylation, and protease enzyme activity compared with control. Energy sensing (Prkaa1 and Prkab1) and glycolysis (Gsy1 and Gsk3b) genes were lower (P < 0.05) with Let7i-5p overexpression compared with miR-195-5p and control. Fat metabolism (Cpt1a, Scd1, and Hadha) genes were lower (P < 0.05) in miR-195-5p than in control. These data indicate that consuming CHO after aerobic exercise alters miRNA profiles compared with CON, and these differences may govern mechanisms facilitating muscle recovery.NEW & NOTEWORTHY Results provide novel insight into effects of carbohydrate intake on the expression of skeletal muscle microRNA during early recovery from aerobic exercise and reveal that Let7i-5p and miR-195-5p are important regulators of skeletal muscle protein breakdown to aid in facilitating muscle recovery.


Assuntos
Glicogênio , MicroRNAs , Adolescente , Adulto , Humanos , Masculino , Adulto Jovem , Carboidratos da Dieta/farmacologia , Carboidratos da Dieta/metabolismo , Exercício Físico/fisiologia , Glicogênio/metabolismo , MicroRNAs/genética , MicroRNAs/metabolismo , Músculo Esquelético/metabolismo
6.
BMJ Open ; 12(4): e058101, 2022 04 20.
Artigo em Inglês | MEDLINE | ID: mdl-35443961

RESUMO

INTRODUCTION: The World Health Organization's (WHO) scalable psychological interventions, such as Problem Management Plus (PM+) and Step-by-Step (SbS) are designed to be cost-effective non-specialist delivered interventions to reduce symptoms of common mental disorders, such as anxiety, depression and post-traumatic stress disorder (PTSD). The STRENGTHS consortium aims to evaluate the effectiveness, cost-effectiveness and implementation of the individual format of PM+ and its group version (gPM+), as well as of the digital SbS intervention among Syrian refugees in seven countries in Europe and the Middle East. This is a study protocol for a prospective individual participant data (IPD) meta-analysis to evaluate (1) overall effectiveness and cost-effectiveness and (2) treatment moderators of PM+, gPM+ and SbS with Syrian refugees. METHODS AND ANALYSIS: Five pilot randomised controlled trials (RCTs) and seven fully powered RCTs conducted within STRENGTHS will be combined into one IPD meta-analytic dataset. The RCTs include Syrian refugees of 18 years and above with elevated psychological distress (Kessler Psychological Distress Scale (K10>15)) and impaired daily functioning (WHO Disability Assessment Schedule 2.0 (WHODAS 2.0>16)). Participants are randomised into the intervention or care as usual control group, and complete follow-up assessments at 1-week, 3-month and 12-month follow-up. Primary outcomes are symptoms of depression and anxiety (25-item Hopkins Symptom Checklist). Secondary outcomes include daily functioning (WHODAS 2.0), PTSD symptoms (PTSD Checklist for DSM-5) and self-identified problems (PSYCHLOPS). We will conduct a one-stage IPD meta-analysis using linear mixed models. Quality of evidence will be assessed using the GRADE approach, and the economic evaluation approach will be assessed using the CHEC-list. ETHICS AND DISSEMINATION: Local ethical approval has been obtained for each RCT. This IPD meta-analysis does not require ethical approval. The results of this study will be published in international peer-reviewed journals.


Assuntos
Refugiados , Transtornos de Estresse Pós-Traumáticos , Humanos , Metanálise como Assunto , Oriente Médio , Intervenção Psicossocial , Ensaios Clínicos Controlados Aleatórios como Assunto , Refugiados/psicologia , Transtornos de Estresse Pós-Traumáticos/psicologia , Síria
7.
J Nutr ; 152(6): 1560-1573, 2022 06 09.
Artigo em Inglês | MEDLINE | ID: mdl-35285906

RESUMO

BACKGROUND: Physiologic and psychologic stress slow healing from experimental wounds by impairing immune function. OBJECTIVES: We aimed to determine whether supplemental protein and multinutrient supplementation improved wound healing markers after acute stress induced by acute sleep restriction. METHODS: In this single-blind, crossover study in generally healthy young adults (18 males/2 females; mean ± SD age: 19.7 ± 2.30 y), experimental wounds were created by removing the top layer of forearm blisters induced via suction after 48 h of 72-h sleep restriction (2-h nightly sleep), a protocol previously shown to delay wound healing. Skin barrier restoration (measured by transepidermal water loss) assessed wound healing ≤10 d postblistering, and local immune responses were evaluated by serial measurement of cytokine concentrations in fluid collected at wound sites for 48 h postblistering. Participants consumed controlled, isocaloric diets with either 0.900 g · kg-1 · d-1 protein plus placebo (PLA) or 1.50 g · kg-1 · d-1 protein plus multinutrient beverage [l-arginine: 20.0 g/d; l-glutamine: 30.0 g/d; omega-3 (n-3) fatty acids: 1.00 g/d; zinc sulfate: 24.0 mg/d; cholecalciferol: 800 IU/d; and vitamin C: 400 mg/d] (NUT) during sleep restriction and for 4 d afterwards. RESULTS: Skin barrier restoration (primary outcome) was shorter for NUT (median: 3.98 d; IQR: 1.17 d) than for PLA (median: 5.25 d; IQR: 1.05 d) (P = 0.001). Cytokines from wound fluid (secondary outcome) increased over time (main effect of time P ≤ 0.001), except IL-13 (P = 0.07); however, no effects of treatment were observed. CONCLUSIONS: Supplemental nutrition may promote wound healing after sleep restriction in healthy adults including military personnel, the latter of which also have a high incidence of wounds and infection.This trial was registered at clinicaltrials.gov as NCT03525184.


Assuntos
Ácidos Graxos Ômega-3 , Cicatrização , Adolescente , Adulto , Bebidas , Estudos Cross-Over , Citocinas , Feminino , Humanos , Masculino , Poliésteres/farmacologia , Método Simples-Cego , Sono , Adulto Jovem
8.
PLoS Med ; 19(3): e1003949, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35298469

RESUMO

BACKGROUND: Common mental disorders are frequently experienced by refugees. This study evaluates the impact of a brief, lay provider delivered group-based psychological intervention [Group Problem Management Plus (gPM+)] on the mental health of refugees in a camp, as well as on parenting behavior and children's mental health. METHODS AND FINDINGS: In this single-blind, parallel, randomized controlled trial, 410 adult Syrian refugees (300 females, 110 males) in Azraq Refugee Camp (Jordan) were identified through screening of psychological distress (≥16 on the Kessler Psychological Distress Scale) and impaired functioning (≥17 on the WHO Disability Assessment Schedule). Participants were randomly allocated to gPM+ or enhanced usual care (EUC) involving referral information for psychosocial services on a 1:1 ratio. Participants were aware of treatment allocation, but assessors were blinded to treatment condition. Primary outcomes were scores on the Hopkins Symptom Checklist-25 (HSCL; depression and anxiety scales) assessed at baseline, 6 weeks, and 3 months follow-up as the primary outcome time point. It was hypothesized that gPM+ would result in greater reductions of scores on the HSCL than EUC. Secondary outcomes were disability, posttraumatic stress, personally identified problems, prolonged grief, prodromal psychotic symptoms, parenting behavior, and children's mental health. Between October 15, 2019 and March 2, 2020, 624 refugees were screened for eligibility, 462 (74.0%) screened positive, of whom 204 were assigned to gPM+ and 206 to EUC. There were 168 (82.4%) participants in gPM+ and 189 (91.7%) in EUC assessed at follow-up. Intent-to-treat analyses indicated that at follow-up, participants in gPM+ showed greater reduction on HSCL depression scale than those receiving EUC (mean difference, 3.69 [95% CI 1.90 to 5.48], p = .001; effect size, 0.40). There was no difference between conditions in anxiety (mean difference -0.56, 95% CI -2.09 to 0.96; p = .47; effect size, -0.03). Relative to EUC, participants in gPM+ had greater reductions in severity of personally identified problems (mean difference 0.88, 95% CI 0.07 to 1.69; p = .03), and inconsistent disciplinary parenting (mean difference 1.54, 95% CI 1.03 to 2.05; p < .001). There were no significant differences between conditions for changes in PTSD, disability, grief, prodromal symptoms, or childhood mental health outcomes. Mediation analysis indicated the change in inconsistent disciplinary parenting was associated with reduced attentional (ß = 0.11, SE .07; 95% CI .003 to .274) and internalizing (ß = 0.08, SE .05; 95% CI .003 to 0.19) problems in children. No adverse events were attributable to the interventions or the trial. Major limitations included only one-quarter of participants being male, and measures of personally identified problems, grief, prodromal psychotic symptoms, inconsistent parenting behavior, and children's mental health have not been validated with Syrians. CONCLUSIONS: In camp-based Syrian refugees, a brief group behavioral intervention led to reduced depressive symptoms, personally identified problems, and disciplinary parenting compared to usual care, and this may have indirect benefits for refugees' children. The limited capacity of the intervention to reduce PTSD, disability, or children's psychological problems points to the need for development of more effective treatments for refugees in camp settings. TRIAL REGISTRATION: Prospectively registered at Australian and New Zealand Clinical Trials Registry: ACTRN12619001386123.


Assuntos
Transtornos Mentais , Refugiados , Adulto , Austrália , Criança , Feminino , Humanos , Jordânia , Masculino , Transtornos Mentais/terapia , Refugiados/psicologia , Método Simples-Cego , Síria
9.
Metabolites ; 11(12)2021 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-34940586

RESUMO

This study used global metabolomics to identify metabolic factors that might contribute to muscle anabolic resistance, which develops when aerobic exercise is initiated with low muscle glycogen using global metabolomics. Eleven men completed this randomized, crossover study, completing two cycle ergometry glycogen depletion trials, followed by 24 h of isocaloric refeeding to elicit low (LOW; 1.5 g/kg carbohydrate, 3.0 g/kg fat) or adequate (AD; 6.0 g/kg carbohydrate 1.0 g/kg fat) glycogen. Participants then performed 80 min of cycling (64 ± 3% VO2 peak) while ingesting 146 g carbohydrate. Serum was collected before glycogen depletion under resting and fasted conditions (BASELINE), and before (PRE) and after (POST) exercise. Changes in metabolite profiles were calculated by subtracting BASELINE from PRE and POST within LOW and AD. There were greater increases (p < 0.05, Q < 0.10) in 64% of branched-chain amino acids (BCAA) metabolites and 69% of acyl-carnitine metabolites in LOW compared to AD. Urea and 3-methylhistidine had greater increases (p < 0.05, Q < 0.10) in LOW compared to AD. Changes in metabolomics profiles indicate a greater reliance on BCAA catabolism for substrate oxidation when exercise is initiated with low glycogen stores. These findings provide a mechanistic explanation for anabolic resistance associated with low muscle glycogen, and suggest that exogenous BCAA requirements to optimize muscle recovery are likely greater than current recommendations.

10.
Eur J Psychotraumatol ; 12(1): 1932295, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34262668

RESUMO

Background: Approximately 10% of Syrian refugees currently reside in camp settings, which can impose additional post-migration stressors. With elevated rates of psychological distress and few available resources, task-shifting psychosocial programmes are necessary to provide adequate care. One such programme developed by the World Health Organization (WHO) is Group Problem Management Plus (GroupPM+). Objective: This study aimed to test the safety and acceptability of GroupPM+ in a refugee camp and to identify areas for adaptation in preparation for a definitive RCT. Method: A feasibility randomized controlled trial (RCT) was conducted in Azraq refugee camp in Jordan. Inclusion criteria were: (1) Syrian adults aged ≥18 years, (2) parent of a child aged 10-16 years, (3) experiencing psychological distress as defined by a score of ≥16 on the Kessler Distress Scale, and (4) ≥17 on the WHO Disability Assessment Schedule 2.0. Following baseline assessments, participants were randomized to receive GroupPM+ or enhanced treatment-as-usual. Post-assessments were conducted one week following the last GroupPM+ session. Primary outcomes were feasibility and acceptance of GroupPM+; symptoms of anxiety, depression, PTSD, prodromal psychosis, grief, and child's self-reported psychological distress were also assessed. Results: Of the 207 persons screened, 64 (31%) screened positive for psychological distress. Of the 35 randomized into the GroupPM+ intervention, 24 (69%) completed the intervention. No adverse events were reported throughout the trial. Children whose parents received GroupPM+ had greater reductions in internalizing and externalizing symptoms at posttreatment. 55 (86%) participants completed the post-assessment follow-up. These results demonstrate both the feasibility of conducting the trial in a camp and acceptance of the GroupPM+ intervention by Syrian refugees. Conclusions: Following the feasibility trial, both the implementation procedures and intervention were safe and culturally acceptable. The results support the readiness for a definitive RCT to determine the effectiveness and cost-effectiveness of the intervention in camp settings.


Antecedentes: Aproximadamente el 10% de refugiados sirios reside actualmente en campos de refugiados, lo que puede imponer estresores adicionales después de la migración. Con tasas elevadas de angustia psicológica y pocos recursos disponibles, los programas psicosociales de rotación de tareas son necesarios para brindar un cuidado adecuado. Uno de estos programas, desarrollado por la Organización Mundial de la Salud (OMS), es el Programa Grupal para el Manejo de Problemas Plus ('Group Problem Management Plus', o GroupPM+).Objetivos: Este estudio tuvo como objetivo el probar la seguridad y la aceptabilidad del GroupPM+ en un campo de refugiados e identificar las áreas de adaptación en preparación para un ensayo clínico controlado y aleatorizado (ECA).Métodos: Se llevó a cabo un ensayo clínico controlado y aleatorizado (ECA) de viabilidad en el campo de refugiados de Azraq en Jordania. Los criterios de inclusión fueron (1) ser un adulto sirios con una edad ≥ 18 años, (2) ser padre de un niño de 10 a 16 años, (3) experimentar angustia psicológica, definida mediante un puntaje ≥ 16 en la Escala de Malestar Psicológico de Kessler, y (4) un puntaje ≥ 17 en el Cuestionario para la Evaluación de la Discapacidad 2.0 de la OMS. Después de las evaluaciones iniciales, los participantes fueron distribuidos aleatoriamente para recibir la intervención mediante el GroupPM+ o para recibir el tratamiento usual optimizado. Las evaluaciones posteriores fueron conducidas una semana después de la última sesión del GroupPM+. Los resultados principales fueron la viabilidad y la aceptación del GroupPM+; los síntomas de ansiedad, de depresión, del trastorno de estrés postraumático (TEPT), la psicosis prodrómica, el duelo, y también se evaluó el auto-reporte de la angustia psicológica por parte del niño.Resultados: De las 207 personas evaluadas, 64 (31%) dieron positivo en presentar angustia psicológica. De las 35 personas incluidas de manera aleatoria en el grupo de intervención mediante el GroupPM+, 24 (69%) completaron la intervención. No se reportaron eventos adversos durante el ensayo clínico. Los niños cuyos padres recibieron la intervención mediante el GroupPM+ tuvieron una mayor reducción en los síntomas internalizantes y externalizantes después del tratamiento. 55 (86%) participantes completaron el seguimiento posterior a la evaluación. Estos resultados demuestran tanto la viabilidad de conducir el ensayo clínico en un campo de refugiados, como la aceptación de la intervención mediante el GroupPM+ por parte de los refugiados sirios.Conclusiones: De acuerdo con el ensayo de viabilidad, tanto los procedimientos de implementación como la intervención fueron seguros y culturalmente aceptables. Los resultados apoyan la preparación para un ECA definitivo para determinar la efectividad y costo-efectividad de la intervención en los campos de refugiados.


Assuntos
Angústia Psicológica , Intervenção Psicossocial , Campos de Refugiados , Refugiados , Adolescente , Adulto , Ansiedade/psicologia , Criança , Assistência à Saúde Culturalmente Competente , Depressão/psicologia , Estudos de Viabilidade , Feminino , Humanos , Jordânia , Masculino , Refugiados/psicologia , Refugiados/estatística & dados numéricos , Síria/etnologia
11.
J Int Soc Sports Nutr ; 18(1): 56, 2021 Jul 10.
Artigo em Inglês | MEDLINE | ID: mdl-34246303

RESUMO

BACKGROUND: The effects of low muscle glycogen on molecular markers of protein synthesis and myogenesis before and during aerobic exercise with carbohydrate ingestion is unclear. The purpose of this study was to determine the effects of initiating aerobic exercise with low muscle glycogen on mTORC1 signaling and markers of myogenesis. METHODS: Eleven men completed two cycle ergometry glycogen depletion trials separated by 7-d, followed by randomized isocaloric refeeding for 24-h to elicit low (LOW; 1.5 g/kg carbohydrate, 3.0 g/kg fat) or adequate (AD; 6.0 g/kg carbohydrate, 1.0 g/kg fat) glycogen. Participants then performed 80-min of cycle ergometry (64 ± 3% VO2peak) while ingesting 146 g carbohydrate. mTORC1 signaling (Western blotting) and gene transcription (RT-qPCR) were determined from vastus lateralis biopsies before glycogen depletion (baseline, BASE), and before (PRE) and after (POST) exercise. RESULTS: Regardless of treatment, p-mTORC1Ser2448, p-p70S6KSer424/421, and p-rpS6Ser235/236 were higher (P < 0.05) POST compared to PRE and BASE. PAX7 and MYOGENIN were lower (P < 0.05) in LOW compared to AD, regardless of time, while MYOD was lower (P < 0.05) in LOW compared to AD at PRE, but not different at POST. CONCLUSION: Initiating aerobic exercise with low muscle glycogen does not affect mTORC1 signaling, yet reductions in gene expression of myogenic regulatory factors suggest that muscle recovery from exercise may be reduced.


Assuntos
Metabolismo dos Carboidratos , Exercício Físico/fisiologia , Glicogênio/metabolismo , Alvo Mecanístico do Complexo 1 de Rapamicina/metabolismo , Desenvolvimento Muscular/fisiologia , Músculo Esquelético/metabolismo , Proteínas Quinases Ativadas por AMP/metabolismo , Adulto , Biomarcadores/sangue , Metabolismo dos Carboidratos/genética , Estudos Cross-Over , Ergometria/métodos , Glicogênio/deficiência , Humanos , Masculino , Proteína MyoD/metabolismo , Miogenina/metabolismo , Fator de Transcrição PAX7/metabolismo , Fosforilação , Proteínas Proto-Oncogênicas c-akt/metabolismo , RNA Mensageiro/metabolismo , Fatores de Tempo , Transcrição Gênica , Adulto Jovem
12.
Physiol Behav ; 237: 113438, 2021 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-33940082

RESUMO

OBJECTIVE: Several nights of moderate (4-5 hr/night) sleep restriction increases appetite and energy intake, and may alter circulating concentrations of appetite regulating hormones. Whether more severe sleep restriction has similar effects is unclear. This study aimed to determine the effects of severe, short-term sleep restriction on appetite, ad libitum energy intake during a single meal, appetite regulating hormones, and food preferences. METHODS: Randomized, crossover study in which 18 healthy men (mean ± SD: BMI 24.4 ± 2.3 kg/m2, 20 ± 2 yr) were assigned to three consecutive nights of sleep restriction (SR; 2 hr sleep opportunity/night) or adequate sleep (AS; 7-9 hr sleep opportunity/night) with controlled feeding and activity designed to maintain energy balance throughout the 3-day period. On day 4, participants consumed a standardized breakfast. Appetite, assessed by visual analogue scales, and circulating ghrelin, peptide-YY (PYY), glucagon-like peptide (GLP-1), insulin, and glucose concentrations were measured before and every 20-60 min for 4hr after the meal. Ad libitum energy and macronutrient intakes were then measured at a provided buffet lunch. Food preferences were measured by Leeds Food Preference Questionnaire (LFPQ) administered before and after the lunch. RESULTS: Area under the curve (AUC) of postprandial hunger (-23%), desire to eat (-23%), and prospective consumption (-18%) ratings were all lower, and postprandial fullness AUC (25%) was higher after SR relative to after AS (p ≤ 0.02). Ad libitum energy intake at the lunch meal was 332 kcal [95% CI: -479, -185] (p<0.001) lower after SR relative to after AS, but relative macronutrient intakes and LFPQ scores did not differ. Postprandial glucose, insulin, PYY, GLP-1, and ghrelin AUCs did not differ between phases. However, mean concentrations of PYY (-11%) and GLP-1 (-4%) over the 4-hr testing period were lower, and glucose concentrations were 6% higher, after SR relative to after AS (p ≤ 0.01). CONCLUSION: In contrast with reported effects of moderate sleep restriction, severe sleep restriction reduced appetite and energy intake, had no impact food preferences, and had little impact on appetite regulating hormones. Findings suggest that severe sleep restriction may suppress appetite and food intake, at least at a single meal, by a mechanism independent of changes in food preference or appetite regulating hormones.


Assuntos
Apetite , Peptídeo 1 Semelhante ao Glucagon , Estudos Cross-Over , Ingestão de Energia , Grelina , Humanos , Insulina , Masculino , Obesidade , Peptídeo YY , Período Pós-Prandial , Estudos Prospectivos , Sono
13.
BMC Public Health ; 20(1): 390, 2020 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-32216762

RESUMO

BACKGROUND: Accessing quality mental health care poses significant challenges for persons affected by adversity, especially in low- and middle-income countries where resources are scarce. To mitigate this, the World Health Organization has developed group problem management plus (gPM+), a low-intensity psychological intervention for adults experiencing psychological distress. gPM+ is a group-based intervention consisting of five-sessions, and can be delivered by non-specialist providers. This paper outlines the study protocol for a trial of gPM+ in Jordan. METHODS: We will conduct a single-blind, two-arm, randomized controlled trial in a Syrian refugee camp in Jordan. We aim to enrol 480 adults into the trial. Participants will be eligible for the trial if they screen positive for levels of psychological distress. Following screening, those eligible will be randomly assigned to receive the gPM+ intervention or enhanced treatment as usual. The primary outcome is reduction in levels of psychological distress at 3-months post-treatment. Secondary outcomes include anxiety, depression, prodromal psychotic symptoms, posttraumatic stress disorder, prolonged grief, daily functioning, economic effectiveness, and change in parenting behaviour. Secondary outcomes also include the reduction in psychological distress of the participant's child. DISCUSSION: The trial aims to deliver a template for affordable and scalable psychosocial interventions that can readily be implemented in refugee settings, and that can benefit both the participant and their child. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry, ACTRN12619001386123. Registered prospectively on 10/10/2019.


Assuntos
Transtornos Mentais/terapia , Angústia Psicológica , Psicoterapia de Grupo/métodos , Campos de Refugiados , Refugiados/psicologia , Adulto , Protocolos Clínicos , Feminino , Humanos , Jordânia , Masculino , Refugiados/estatística & dados numéricos , Método Simples-Cego , Síria/etnologia , Resultado do Tratamento
14.
Eur J Psychotraumatol ; 11(1): 1694347, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32082506

RESUMO

Background: Syrian refugees face multiple hardships and adversities which put them at risk for the development of mental health problems. However, access to adequate mental health care in host countries is limited. The WHO has developed Problem Management Plus (PM+), a brief, scalable psychological intervention, delivered by non-specialist helpers, that addresses common mental disorders in people affected by adversity. This study is part of the STRENGTHS project, that aims to evaluate peer-refugee delivered psychological interventions for Syrian refugees in Europe and the Middle East. Objective: To evaluate the effectiveness and cost-effectiveness of the peer-refugee delivered PM+ intervention among Syrian refugees with elevated levels of psychological distress in the Netherlands. Methods: PM+ will be tested in a randomized controlled trial (RCT) among Arabic-speaking Syrian refugees in the Netherlands aged 18 years and above with self-reported psychological distress (Kessler Psychological Distress Scale; K10 >15) and impaired daily functioning (WHO Disability Assessment Schedule; WHODAS 2.0 >16). Participants (N = 380) will be randomized into care as usual with PM+ (CAU/PM+, n = 190) or CAU only (CAU, n = 190). Baseline, 1-week post-intervention, and 3-month and 12-month follow-up assessments will be conducted. Primary outcomes are symptoms of depression and anxiety. Secondary outcomes are functional impairment, posttraumatic stress disorder symptoms, self-identified problems, anger, health and productivity costs, and hair cortisol concentrations. A process evaluation will be carried out to evaluate treatment dose, protocol fidelity and stakeholder views on barriers and facilitators to implementing PM+. Results and Conclusions: PM+ has proved effectiveness in other populations and settings. After positive evaluation, the adapted manual and training materials for individual PM+ will be made available through the WHO to encourage further replication and scaling up. Trial registration: Trial registration Dutch Trial Registry, NL7552, registered prospectively on March 1, 2019. Medical Ethics Review Committee VU Medical Center Protocol ID 2017.320, 7 September 2017.


Antecedentes: Los refugiados sirios atraviesan muchas dificultades y adversidades, las cuales los ponen en riesgo para el desarrollo de problemas de salud mental. Sin embargo, el acceso a servicios de salud mental en los países que albergan a refugiados es limitado. La Organización Mundial de la Salud (OMS) ha desarrollado la intervención de Gestión de Problemas Plus (PM+, por sus siglas en inglés), una intervención psicológica breve, en etapas, realizada por facilitadores no especialistas, y que está dirigido al abordaje de los trastornos mentales más comunes en personas afectadas por la adversidad. Este estudio es parte de un proyecto más grande llamado STRENGTHS, cuyo objetivo es evaluar las intervenciones psicológicas brindadas por un refugiado a otro adaptadas para refugiados sirios en Europa y Medio Oriente.Objetivo: Evaluar la efectividad y costo-efectividad de la adaptación de la intervención PM+ brindada por un refugiado a otro, en refugiados sirios con niveles elevados de malestar psicologico en los Países Bajos.Métodos: La adaptación de la intervención PM+ será evaluada en un ensayo clínico aleatorizado en refugiados sirios de habla árabe en los Países Bajos, en mayores de 18 años, con malestar psicológico auto-reportado (mediante la Escala de Kessler para Malestar Psicológico, K10>15) y deterioro en el funcionamiento diario (Registro de Evaluación de Discapacidad de la OMS; WHODAS 2.0 >16). Los participantes (N=380) serán distribuidos aleatoriamente en un grupo de tratamiento usual con PM+ (TU/PM+, n=190) y en uno de solo tratamiento usual (TU, n=190). Se tomarán evaluaciones de base, luego de la primera semana de la intervención, luego de los tres meses, y luego de los 12 meses. Estas evaluaciones serán asistidas por una aplicación de auto-entrevista con soporte de audio para tablet. Los resultados primarios son los síntomas de depresión y ansiedad. Los resultados primarios son los síntomas de depresión y ansiedad. Los resultados secundarios son el deterioro funcional, síntomas de estrés traumático, problemas auto-identificados, ira, costos en salud y productividad, y concentraciones de cortisol en el cabello. Se realizará un proceso de evaluación para valorar las opiniones de los interesados respecto a las barreras y facilitadores para implementar la intervención PM+, así como la dosis del tratamiento y la adherencia al protocolo.Discusión: La intervención PM+ ha mostrado efectividad en otras poblaciones y escenarios. Luego de obtener una evaluación positiva de la PM+ en refugiados sirios, se harán disponibles manuales y material de entrenamiento para PM+ individual a través de la OMS, de manera que se incentive la posterior replicación de la intervención y se aumente progresivamente su aplicación.

15.
Metabolism ; 103: 154030, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31778707

RESUMO

BACKGROUND: Exogenous carbohydrate oxidation is lower during steady-state aerobic exercise in native lowlanders sojourning at high altitude (HA) compared to sea level (SL). However, the underlying mechanism contributing to reduction in exogenous carbohydrate oxidation during steady-state aerobic exercise performed at HA has not been explored. OBJECTIVE: To determine if alterations in glucose rate of appearance (Ra), disappearance (Rd) and metabolic clearance rate (MCR) at HA provide a mechanism for explaining the observation of lower exogenous carbohydrate oxidation compared to during metabolically-matched, steady-state exercise at SL. METHODS: Using a randomized, crossover design, native lowlanders (n = 8 males, mean ±â€¯SD, age: 23 ±â€¯2 yr, body mass: 87 ±â€¯10 kg, and VO2peak: SL 4.3 ±â€¯0.2 L/min and HA 2.9 ±â€¯0.2 L/min) consumed 145 g (1.8 g/min) of glucose while performing 80-min of metabolically-matched (SL: 1.66 ±â€¯0.14 V̇O2 L/min 329 ±â€¯28 kcal, HA: 1.59 ±â€¯0.10 V̇O2 L/min, 320 ±â€¯19 kcal) treadmill exercise in SL (757 mmHg) and HA (460 mmHg) conditions after a 5-h exposure. Substrate oxidation rates (g/min) and glucose turnover (mg/kg/min) during exercise were determined using indirect calorimetry and dual tracer technique (13C-glucose oral ingestion and [6,6-2H2]-glucose primed, continuous infusion). RESULTS: Total carbohydrate oxidation was higher (P < 0.05) at HA (2.15 ±â€¯0.32) compared to SL (1.39 ±â€¯0.14). Exogenous glucose oxidation rate was lower (P < 0.05) at HA (0.35 ±â€¯0.07) than SL (0.44 ±â€¯0.05). Muscle glycogen oxidation was higher at HA (1.67 ±â€¯0.26) compared to SL (0.83 ±â€¯0.13). Total glucose Ra was lower (P < 0.05) at HA (12.3 ±â€¯1.5) compared to SL (13.8 ±â€¯2.0). Exogenous glucose Ra was lower (P < 0.05) at HA (8.9 ±â€¯1.3) compared to SL (10.9 ±â€¯2.2). Glucose Rd was lower (P < 0.05) at HA (12.7 ±â€¯1.7) compared to SL (14.3 ±â€¯2.0). MCR was lower (P < 0.05) at HA (9.0 ±â€¯1.8) compared to SL (12.1 ±â€¯2.3). Circulating glucose and insulin concentrations were higher in response carbohydrate intake during exercise at HA compared to SL. CONCLUSION: Novel results from this investigation suggest that reductions in exogenous carbohydrate oxidation at HA may be multifactorial; however, the apparent insensitivity of peripheral tissue to glucose uptake may be a primary determinate.


Assuntos
Metabolismo dos Carboidratos , Exercício Físico/fisiologia , Glucose/farmacocinética , Hipóxia/metabolismo , Doença Aguda , Adolescente , Adulto , Metabolismo dos Carboidratos/efeitos dos fármacos , Estudos Cross-Over , Teste de Esforço , Humanos , Hipóxia/patologia , Masculino , Taxa de Depuração Metabólica , Oxirredução/efeitos dos fármacos , Consumo de Oxigênio/fisiologia , Adulto Jovem
16.
Br J Nutr ; 121(9): 1026-1038, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-31062684

RESUMO

Consumption of certain berries appears to slow postprandial glucose absorption, attributable to polyphenols, which may benefit exercise and cognition, reduce appetite and/or oxidative stress. This randomised, crossover, placebo-controlled study determined whether polyphenol-rich fruits added to carbohydrate-based foods produce a dose-dependent moderation of postprandial glycaemic, glucoregulatory hormone, appetite and ex vivo oxidative stress responses. Twenty participants (eighteen males/two females; 24 (sd 5) years; BMI: 27 (sd 3) kg/m2) consumed one of five cereal bars (approximately 88 % carbohydrate) containing no fruit ingredients (reference), freeze-dried black raspberries (10 or 20 % total weight; LOW-Rasp and HIGH-Rasp, respectively) and cranberry extract (0·5 or 1 % total weight; LOW-Cran and HIGH-Cran), on trials separated by ≥5 d. Postprandial peak/nadir from baseline (Δmax) and incremental postprandial AUC over 60 and 180 min for glucose and other biochemistries were measured to examine the dose-dependent effects. Glucose AUC0-180 min trended towards being higher (43 %) after HIGH-Rasp v. LOW-Rasp (P=0·06), with no glucose differences between the raspberry and reference bars. Relative to reference, HIGH-Rasp resulted in a 17 % lower Δmax insulin, 3 % lower C-peptide (AUC0-60 min and 3 % lower glucose-dependent insulinotropic polypeptide (AUC0-180 min) P<0·05. No treatment effects were observed for the cranberry bars regarding glucose and glucoregulatory hormones, nor were there any treatment effects for either berry type regarding ex vivo oxidation, appetite-mediating hormones or appetite. Fortification with freeze-dried black raspberries (approximately 25 g, containing 1·2 g of polyphenols) seems to slightly improve the glucoregulatory hormone and glycaemic responses to a high-carbohydrate food item in young adults but did not affect appetite or oxidative stress responses at doses or with methods studied herein.


Assuntos
Carboidratos da Dieta/administração & dosagem , Grão Comestível , Alimentos Fortificados , Polifenóis/administração & dosagem , Período Pós-Prandial/efeitos dos fármacos , Rubus/química , Apetite/efeitos dos fármacos , Glicemia/efeitos dos fármacos , Estudos Cross-Over , Feminino , Humanos , Masculino , Estresse Oxidativo/efeitos dos fármacos , Adulto Jovem
17.
Metabolism ; 97: 1-8, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31095946

RESUMO

BACKGROUND: Initiating aerobic exercise with low muscle glycogen content promotes greater fat and less endogenous carbohydrate oxidation during exercise. However, the extent exogenous carbohydrate oxidation increases when exercise is initiated with low muscle glycogen is unclear. PURPOSE: Determine the effects of muscle glycogen content at the onset of exercise on whole-body and muscle substrate metabolism. METHODS: Using a randomized, crossover design, 12 men (mean ±â€¯SD, age: 21 ±â€¯4 y; body mass: 83 ±â€¯11 kg; VO2peak: 44 ±â€¯3 mL/kg/min) completed 2 cycle ergometry glycogen depletion trials separated by 7-d, followed by a 24-h refeeding to elicit low (LOW; 1.5 g/kg carbohydrate, 3.0 g/kg fat) or adequate (AD; 6.0 g/kg carbohydrate, 1.0 g/kg fat) glycogen stores. Participants then performed 80 min of steady-state cycle ergometry (64 ±â€¯3% VO2peak) while consuming a carbohydrate drink (95 g glucose +51 g fructose; 1.8 g/min). Substrate oxidation (g/min) was determined by indirect calorimetry and 13C. Muscle glycogen (mmol/kg dry weight), pyruvate dehydrogenase (PDH) activity, and gene expression were assessed in muscle. RESULTS: Initiating steady-state exercise with LOW (217 ±â€¯103) or AD (396 ±â€¯70; P < 0.05) muscle glycogen did not alter exogenous carbohydrate oxidation (LOW: 0.84 ±â€¯0.14, AD: 0.87 ±â€¯0.16; P > 0.05) during exercise. Endogenous carbohydrate oxidation was lower and fat oxidation was higher in LOW (0.75 ±â€¯0.29 and 0.55 ±â€¯0.10) than AD (1.17 ±â€¯0.29 and 0.38 ±â€¯0.13; all P < 0.05). Before and after exercise PDH activity was lower (P < 0.05) and transcriptional regulation of fat metabolism (FAT, FABP, CPT1a, HADHA) was higher (P < 0.05) in LOW than AD. CONCLUSION: Initiating exercise with low muscle glycogen does not impair exogenous carbohydrate oxidative capacity, rather, to compensate for lower endogenous carbohydrate oxidation acute adaptations lead to increased whole-body and skeletal muscle fat oxidation.


Assuntos
Carboidratos/fisiologia , Carboidratos da Dieta/metabolismo , Exercício Físico/fisiologia , Gorduras/metabolismo , Glicogênio/metabolismo , Músculo Esquelético/metabolismo , Adolescente , Adulto , Estudos Cross-Over , Expressão Gênica/fisiologia , Humanos , Metabolismo dos Lipídeos/fisiologia , Masculino , Oxirredução , Transcrição Gênica/fisiologia , Adulto Jovem
18.
J Nutr Educ Behav ; 50(2): 180-189.e1, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28890265

RESUMO

OBJECTIVE: To develop a branding strategy for a campaign to improve the quality of foods children bring from home to school, using a combined healthy eating and eco-friendly approach and for a control campaign focusing solely on nutrition. METHODS: Formative research was conducted with third- and fourth-grade students in lower- and middle-income schools in Greater Boston and their parents. Phase I included concept development focus groups. Phase II included concept testing focus groups. A thematic analysis approach was used to identify key themes. RESULTS: In phase I, the combined nutrition and eco-friendly messages resonated; child preference emerged as a key factor affecting food from home. In phase II, key themes included fun with food and an element of mystery. Themes were translated into a concept featuring food face characters. CONCLUSIONS AND IMPLICATIONS: Iterative formative research provided information necessary to create a brand that appealed to a specified target audience.


Assuntos
Dieta , Promoção da Saúde/métodos , Valor Nutritivo , Pesquisa Biomédica , Boston , Criança , Feminino , Grupos Focais , Humanos , Masculino , Instituições Acadêmicas , Estudantes
19.
Eur J Psychotraumatol ; 8(sup2): 1388102, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29163867

RESUMO

The crisis in Syria has resulted in vast numbers of refugees seeking asylum in Syria's neighbouring countries as well as in Europe. Refugees are at considerable risk of developing common mental disorders, including depression, anxiety, and posttraumatic stress disorder (PTSD). Most refugees do not have access to mental health services for these problems because of multiple barriers in national and refugee specific health systems, including limited availability of mental health professionals. To counter some of challenges arising from limited mental health system capacity the World Health Organization (WHO) has developed a range of scalable psychological interventions aimed at reducing psychological distress and improving functioning in people living in communities affected by adversity. These interventions, including Problem Management Plus (PM+) and its variants, are intended to be delivered through individual or group face-to-face or smartphone formats by lay, non-professional people who have not received specialized mental health training, We provide an evidence-based rationale for the use of the scalable PM+ oriented programmes being adapted for Syrian refugees and provide information on the newly launched STRENGTHS programme for adapting, testing and scaling up of PM+ in various modalities in both neighbouring and European countries hosting Syrian refugees.


La crisis en Siria ha dado lugar a un gran número de refugiados que buscan asilo en países vecinos a Siria, así como en Europa. Los refugiados corren un riesgo considerable de desarrollar trastornos mentales comunes, como depresión, ansiedad y trastorno por estrés postraumático (TEPT). La mayoría de los refugiados no tienen acceso a servicios de salud mental para estos problemas debido a las múltiples barreras existentes en los sistemas de salud nacionales y específicos para refugiados, incluida una limitada disponibilidad de profesionales de salud mental. Para contrarrestar algunos de los retos derivados de la limitada capacidad del sistema de salud mental, la Organización Mundial de la Salud (OMS) ha desarrollado una gama de intervenciones psicológicas escalables dirigidas a reducir la angustia psicológica y mejorar el funcionamiento de las personas afectadas por la adversidad. Estas intervenciones, que incluyen Problem Management Plus (Gestión de problemas plus, PM+) y sus variantes, están pensadas para ser aplicadas en formatos cara a cara o mediante teléfonos inteligentes a individuos o grupos por personas no profesionales que no han recibido formación especializada en salud mental,Proporcionamos una justificación basada en la evidencia para el uso de programas escalables orientados a la PM+ que están siendo adaptados para refugiados sirios y proporcionamos información sobre el programa STRENGTHS recientemente lanzado para adaptar, probar y ampliar la PM+ en diversas modalidades, tanto en los países vecinos como en los europeos que reciben refugiados de Siria.

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