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1.
BMC Public Health ; 23(1): 94, 2023 01 12.
Artigo em Inglês | MEDLINE | ID: mdl-36635656

RESUMO

BACKGROUND: Despite consistently reporting poorer health, women universally outlive men. We examine whether gender differences in lived circumstances considered, and meaning attributed to SRH by women and men might explain this paradox. METHODS: In an online survey 917 adults rated their health (SRH) and mental health (SRMH) and reflected upon what life experiences they considered in making their ratings. Descriptive findings were sex-disaggregated. The multiple experiences listed were then subject to factor analyses using principal components methods and orthogonal rotation. RESULTS: Women reported poorer SRH and SRMH. They considered a wider range of circumstances, weighing all but self-confidence and behaviors as more important to SRH than did men. Two underlying components, psychosocial context and clinical status were identified overall. Physical health and pain were more important elements of men's clinical status and behaviors. Comparisons with others of the same age played a larger role in male psycho-social context. Two components also underpinned SRMH. These were clinical problems and psycho-social circumstances for which self-confidence was only important among men. CONCLUSIONS: Women's and men's common interpretation of measures like SRH suggests that women's health disadvantage is neither artefactual nor determined by gendered meanings of measures and does not explain the paradox. SRH and SRMH captured social circumstances for all. Convergence of characteristics women and men consider as central to health is evidence of the dynamism of gender with evolving social norms. The remaining divergence speaks to persisting traditional male stereotypes.


Assuntos
Artefatos , Saúde da Mulher , Adulto , Humanos , Masculino , Feminino , Autorrelato , Inquéritos e Questionários , Saúde Mental , Nível de Saúde
2.
Ann Fam Med ; (20 Suppl 1)2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-36696677

RESUMO

Context: Amidst school shutdowns, sheltering in place, and social distancing, the COVID-19 pandemic uniquely affected adolescents. Understanding the experiences of adolescents with respect to social distancing, health changes, information sources and virtual care can inform effective health care for adolescents both during and after the pandemic. Objective: An exploration into their health care experiences during the beginning stage of the pandemic was undertaken to increase knowledge among family physicians to enable adjustments to the provision of care, primarily done virtually. Study Design: This was a qualitative study using semi-structured interviews. The interviews were used to understand the experiences of adolescents using virtual care during the pandemic, the impact of public health restrictions on their health, and their sources of information. Thematic analysis of interviews was conducted using a double-coding technique. Setting: This study took place in a family health team with eight primary care practices. Population studied: Adolescents, aged 14-17 years who had at least one virtual care appointment with their family physician in the first three months of the pandemic were included. Eleven participants were interviewed. Results: Most participants were compliant with social distancing guidelines, motivated by protecting family and community. Participants described both positive and negative impacts on their mental health. Some noted an increase in marijuana use. Sexual activity in pre-pandemic relationships did not change and one participant noted a decrease in casual sexual activity. Participants enjoyed the convenience offered by virtual care but acknowledged privacy and communication challenges. Parents were described as the most trusted source of information about the pandemic. Conclusions: Adolescents primarily look to parents for guidance and the increased family time promoted well-being. Physicians that are able to help adolescents negotiate privacy and mitigate communication challenges are able to provide effective virtual care.


Assuntos
COVID-19 , Humanos , Adolescente , COVID-19/epidemiologia , COVID-19/prevenção & controle , Pandemias/prevenção & controle , Pesquisa Qualitativa , Comunicação , Médicos de Família
3.
BMC Geriatr ; 22(1): 112, 2022 02 10.
Artigo em Inglês | MEDLINE | ID: mdl-35144559

RESUMO

BACKGROUND: Self-reported health is a widely used epidemiologic measure, however, the factors that predict self-reported health among community-dwelling older adults (≥65 years), especially those with multimorbidity (≥2 chronic conditions), are poorly understood. Further, it is not known why some older adults self-report their health positively despite the presence of high levels of multimorbidity, a phenomenon known as the well-being paradox. The objectives of this study were to: 1) examine the factors that moderate or mediate the relationship between multimorbidity and self-reported health; 2) identify the factors that predict high self-reported health; and 3) determine whether these same factors predict high self-reported health among those with high levels of multimorbidity to better understand the well-being paradox. METHODS: A cross-sectional analysis of baseline data from the Canadian Longitudinal Study on Aging was completed (n = 21,503). Bivariate stratified analyses were used to explore whether each factor moderated or mediated the relationship between multimorbidity and self-reported health. Logistic regression was used to determine the factors that predict high self-reported health in the general population of community-dwelling older adults and those displaying the well-being paradox. RESULTS: None of the factors explored in this study moderated or mediated the relationship between multimorbidity and self-reported health, yet all were independently associated with self-reported health. The 'top five' factors predicting high self-reported health in the general older adult population were: lower level of multimorbidity (odds ratio [OR] 0.75, 95% confidence interval [CI] 0.74-0.76), female sex (OR 0.62, CI 0.57-0.68), higher Life Space Index score (OR 1.01, CI 1.01-1.01), higher functional resilience (OR 1.16, CI 1.14-1.19), and higher psychological resilience (OR 1.26, CI 1.23-1.29). These same 'top five' factors predicted high self-reported health among the subset of this population with the well-being paradox. CONCLUSIONS: The factors that predict high self-reported health in the general population of older adults are the same for the subset of this population with the well-being paradox. A number of these factors are potentially modifiable and can be the target of future interventions to improve the self-reported health of this population.


Assuntos
Envelhecimento , Vida Independente , Idoso , Canadá/epidemiologia , Doença Crônica , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Autorrelato
4.
Int J Audiol ; 61(10): 809-817, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-34634215

RESUMO

OBJECTIVE: The objective of this study was to assess the association of self-reported noise exposure and audiograms processed with ten algorithms proposed to quantify noise-induced hearing loss using receiver operating characteristic (ROC) curves. DESIGN: Participants were placed into groups based on self-reported noise exposure. Self-reported noise exposure served as a predictor for noise-induced hearing loss (NIHL). Audiograms were analysed with ten algorithms: The Guidelines, Brewster's Rules, two versions of military Noise-induced Hearing Loss, the Bulge Depth, the age-adjusted 8 kHz threshold and four versions of a new algorithm called the Adjusted Notch Depth (AND). The area under the ROC curves were calculated for each algorithm. STUDY SAMPLE: Data were collected from three cycles of the National Health and Nutrition Examination Survey. RESULTS: Only one version the AND significantly identified those with self-reported noise exposure with an area under the curve of 0.562. CONCLUSIONS: The association between the AND and self-reported noise exposure was marginally better than the previous algorithms in identifying those with self-reported noise exposure. These findings do not support using puretone thresholds for identifying those with NIHL in a cross-sectional research study without stratifying the participants. More research is needed to determine how the AND can be applied to stratified designs.


Assuntos
Perda Auditiva Provocada por Ruído , Ruído Ocupacional , Algoritmos , Limiar Auditivo , Estudos Transversais , Perda Auditiva Provocada por Ruído/diagnóstico , Perda Auditiva Provocada por Ruído/etiologia , Humanos , Inquéritos Nutricionais , Autorrelato
5.
BMC Geriatr ; 21(1): 473, 2021 08 28.
Artigo em Inglês | MEDLINE | ID: mdl-34454440

RESUMO

BACKGROUND: Self-rated health (SRH) is a widely validated measure of the general health of older adults. Our aim was to understand what factors shape individual perceptions of health and, in particular, whether those perceptions vary for men and women and across social locations. METHODS: We used data from the Canadian Longitudinal Study on Aging (CLSA) of community-dwelling adults aged 45 to 85. SRH was measured via a standard single question. Multiple Poisson regression identified individual, behavioural, and social factors related to SRH. Intersections between sex, education, wealth, and rural/urban status, and individual and joint cluster effects on SRH were quantified using multilevel models. RESULTS: After adjustment for relevant confounders, women were 43% less likely to report poor SRH. The strongest cluster effect was for groupings by wealth (21%). When wealth clusters were subdivided by sex or education the overall effect on SRH reduced to 15%. The largest variation in SRH (13.6%) was observed for intersections of sex, wealth, and rural/urban status. In contrast, interactions between sex and social factors were not significant, demonstrating that the complex interplay of sex and social location was only revealed when intersectional methods were employed. CONCLUSIONS: Sex and social factors affected older adults' perceptions of health in complex ways that only became apparent when multilevel analyses were carried out. Utilizing intersectionality analysis is a novel and nuanced approach for disentangling explanations for subjective health outcomes.


Assuntos
Autoavaliação Diagnóstica , Fatores Sociais , Idoso , Envelhecimento , Canadá/epidemiologia , Feminino , Nível de Saúde , Humanos , Estudos Longitudinais , Masculino , Fatores Sexuais
6.
Nat Chem Biol ; 14(11): 1021-1031, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30327559

RESUMO

Fatty acid synthase (FASN) predominantly generates straight-chain fatty acids using acetyl-CoA as the initiating substrate. However, monomethyl branched-chain fatty acids (mmBCFAs) are also present in mammals but are thought to be primarily diet derived. Here we demonstrate that mmBCFAs are de novo synthesized via mitochondrial BCAA catabolism, exported to the cytosol by adipose-specific expression of carnitine acetyltransferase (CrAT), and elongated by FASN. Brown fat exhibits the highest BCAA catabolic and mmBCFA synthesis fluxes, whereas these lipids are largely absent from liver and brain. mmBCFA synthesis is also sustained in the absence of microbiota. We identify hypoxia as a potent suppressor of BCAA catabolism that decreases mmBCFA synthesis in obese adipose tissue, such that mmBCFAs are significantly decreased in obese animals. These results identify adipose tissue mmBCFA synthesis as a novel link between BCAA metabolism and lipogenesis, highlighting roles for CrAT and FASN promiscuity influencing acyl-chain diversity in the lipidome.


Assuntos
Tecido Adiposo/enzimologia , Aminoácidos de Cadeia Ramificada/metabolismo , Ácido Graxo Sintases/metabolismo , Ácidos Graxos/biossíntese , Obesidade/enzimologia , Células 3T3 , Adipócitos/citologia , Animais , Sistemas CRISPR-Cas , Carnitina O-Acetiltransferase/metabolismo , Citosol/metabolismo , Feminino , Hipóxia , Lentivirus/genética , Lipogênese , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Camundongos Obesos , RNA Interferente Pequeno/metabolismo
7.
BMC Pediatr ; 20(1): 473, 2020 10 10.
Artigo em Inglês | MEDLINE | ID: mdl-33038924

RESUMO

BACKGROUND: To evaluate the effects of interventions on children's and adolescents' overall physical activity (PA) for boys and girls separately and to appraise the extent to which the studies haven taken sex/gender into account. METHODS: Systematic review and semi-quantitative analysis. Eleven electronic databases were searched to identify all relevant randomized and non-randomized controlled trials. Studies had to report overall PA as the main outcome to be eligible for inclusion in the review. The main outcomes of the studies is a quantified measure of overall PA. Additionally, all studies had to report sex/gender disaggregated overall PA at baseline and/or follow up and/or explain how they dealt with sex/gender during outcome analysis (i.e., sex/gender adjusted analyses) and/or report that there were no differences in the outcome when looking at sex/gender. PRISMA guidelines were followed. Two authors independently screened studies for eligibility and assessed the risk of bias. Semi-quantitative analyses were conducted to evaluate intervention effects, taking into account the extent to which studies have considered sex/gender aspects. To evaluate sex/gender considerations in primary studies, a newly developed sex/gender checklist was used. The study was registered previously (registration number CRD42018109528). RESULTS: In total, 97 articles reporting 94 unique studies with 164 outcomes for overall PA were included in the present review. Average sample size was 829 participants, ranging from five to 9839. Participants' ages ranged from three to 19 years. Our review shows that overall 35% of PA outcomes had significant effects in increasing overall PA of children and adolescents. Not including single sex/gender studies, 105 out of 120 PA outcomes resulted in same intervention effects for boys and girls. The interventions reported to have similar effects on PA outcomes for boys and girls showed higher quality of reporting sex/gender aspects of measurement instruments, participant flow and intervention content and materials than PA outcomes with effects only in boys or only in girls. Overall, consideration of sex/gender aspects in intervention studies is low. CONCLUSIONS: There is still a need to address sufficient consideration of sex/gender aspects in developing and implementing interventions in the context of PA.


Assuntos
Exercício Físico , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Adulto Jovem
8.
Brain Inj ; 34(9): 1202-1212, 2020 07 28.
Artigo em Inglês | MEDLINE | ID: mdl-32705914

RESUMO

PRIMARY OBJECTIVE: This study determined whether initial GCS score, head CT results, cognitive performance on IMPACT testing, or APOE genotype most effectively predicted 1-month functional outcome after mild traumatic brain injury (mTBI). This study tested the hypotheses that participants with poor performance on initial cognitive testing and those with an APOEe4 genotype would exhibit a poorer 1-month recovery after mTBI. RESEARCH DESIGN: Regression analysis determined which independent variables were most effective in predicting 1-month GOS-E or DRS score. Independent t-test procedures determined whether cognitive recovery varied across APOEe4 carriers. METHODS AND PROCEDURES: 49 participants admitted to the hospital with mTBI received cognitive evaluation within 48 hours after injury and again one month later. DNA analysis provided participant APOE genotype. MAIN OUTCOMES AND RESULTS: Results showed that no study variables significantly predicted GOS-E or DRS scores, however, differences were identified when APOE groups were compared. Participants who were noncarriers of APOEe4 had significantly slower reaction times compared to APOEe4 carriers. Participants who were homozygous APOEe4 carriers had significantly lower instances of impulsivity than noncarriers. CONCLUSIONS: Further research is needed to understand how APOE allele status and performance on initial cognitive testing may influence short-term recovery after mTBI.


Assuntos
Concussão Encefálica , Concussão Encefálica/genética , Genótipo , Humanos , Testes Neuropsicológicos , Análise de Regressão , Tomografia Computadorizada por Raios X
9.
Can Public Adm ; 63(3): 369-408, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33173236

RESUMO

Several Canadian and international scholars offer commentaries on the implications of the COVID-19 pandemic for governments and public service institutions, and fruitful directions for public administration research and practice. This second suite of commentaries considers the challenges confronting governments as a result of the COVID-19 pandemic and in the decades to come with an increasingly broad lens: the need to understand and rethink the architecture of the state given recent and future challenges awaiting governments; the need to rethink government-civil society relations and policies to deliver services for increasingly diverse citizens and communities; the need for new repertoires and sensibilities on the part of governments for recognizing, anticipating, and engaging on governance risks despite imperfect expert knowledge and public skepticism; how the COVID-19 crisis has caused us to reconceive international and sub-national borders where new "borders" are being drawn; and the need to anticipate a steady stream of crises similar to the COVID-19 pandemic arising from climate change and related challenges, and develop new national and international governance strategies for fostering population and community resilience.


Plusieurs universitaires canadiens et internationaux ont offert des suggestions sur les implications de la pandémie du COVID­19 pour les gouvernements et les institutions de la fonction publique, ainsi que des orientations futures pour la recherche et la pratique en administration publique. Cette deuxième série de commentaires examine les défis que devront affronter les gouvernements en raison de la pandémie de COVID­19 et dans les décennies à venir, dans une optique large. Cette série souligne le besoin de comprendre et de repenser l'architecture de l'État, de revoir les relations entre le gouvernement et la société civile pour fournir des services à des citoyens et des communautés de plus en plus divers, d'élaborer de nouvelles façons d'identifier et d'anticiper les risques, et de s'engager malgré l'imperfection des connaissances d'experts et le scepticisme du public, de repenser les frontières, tout ceci en tenant compte des crises et défis à venir, de façon à promouvoir la résilience de la population et des communautés.

10.
Eur J Public Health ; 29(1): 38-43, 2019 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-30188987

RESUMO

Background: Risk-taking behaviour among adolescents, particularly those experiencing childhood adversities, can predispose to injury, unwanted pregnancy, long-term morbidity and death. Resilience, i.e. adapting to threats and thriving, has rarely been examined as a protective factor for adolescent risk-taking. We studied whether the malleable traits of empathy, confidence, self-control and optimism, all markers of resilience, align with decreased risk-taking despite adversity, among 11-15 year olds. Methods: From responses of 22 643 Canadian youth to the Health Behaviour in School-aged Children (2014) survey we validated a five-item resilience scale. Using regression analyses, this scale and a single measure of self-control were considered as potential protective factors for a composite measure of risk-taking behaviour and of initiation of sexual activity before age 14. Results: There was a dose-dependent association between greater resilience and diminished risk-taking for boys and, even more so, among girls. This relationship remained significant after controlling for family and social support, implying that greater resilience may override the detrimental impact of childhood adversity on risk-taking. The least resilient youth were most likely to report early sexual activity, although this relationship was not linear. Generally, the impact of self-control on risk-taking was not statistically significant, perhaps because of shortcomings of the self-control indicator. Conclusion: Brief screening protocols can identify assets that protect against risk-taking behaviours among adolescents. The malleable nature of these traits offers primary care providers and public health personnel a novel and effective route to decreasing adolescent risk-taking and fostering future health.


Assuntos
Comportamento do Adolescente/psicologia , Comportamentos Relacionados com a Saúde , Resiliência Psicológica , Assunção de Riscos , Comportamento Sexual/psicologia , Comportamento Social , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adolescente , Canadá , Criança , Feminino , Humanos , Masculino , Comportamento Sexual/estatística & dados numéricos , Fatores Socioeconômicos , Inquéritos e Questionários
11.
BMC Med Educ ; 19(1): 195, 2019 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-31185964

RESUMO

BACKGROUND: The rapid expansion of genetic knowledge, and the implications for healthcare has resulted in an increased role for Primary Care Providers (PCPs) to incorporate genetics into their daily practice. The objective of this study was to explore the self-identified needs, including educational needs, of both urban and rural Primary Care Providers (PCPs) in order to provide genetic care to their patients. METHODS: Using a qualitative grounded theory approach, ten key informant interviews, and one urban and two rural PCP focus groups (FGs) (n = 19) were conducted. All PCPs practiced in Southeastern Ontario. Data was analyzed using a constant comparative method and thematic design. The data reported here represent a subset of a larger study. RESULTS: Participants reported that PCPs have a responsibility to ensure patients receive genetic care. However, specific roles and responsibilities for that care were poorly defined. PCPs identified a need for further education and resources to enable them to provide care for individuals with genetic conditions. Based on the findings, a progressive stepped model that bridges primary and specialty genetic care was developed; the model ranged from PCPs identifying patients with genetic conditions that they could manage alone, to patients who they could manage with informal or electronic consultation to those who clearly required specialist referral. CONCLUSIONS: PCPs identified a need to integrate genetics into primary care practice but they perceived barriers including a lack of knowledge and confidence, access to timely formal and informal consultation and clearly defined roles for themselves and specialists. To address gaps in PCP confidence in providing genetic care, interventions that are directed at accessible just-in-time support and consultation have the potential to empower PCPs to manage patients' genetic conditions. Specific attention to content, timing, and accessibility of educational interventions is critical to address the needs of both urban and rural PCPs. A progressive framework for bridging primary to specialty care through a 'stepped' model for providing continuing medical education, and genetic care can was developed and can be used to guide future design and delivery of educational interventions and resources.


Assuntos
Genética Médica , Avaliação das Necessidades , Médicos de Atenção Primária , Adulto , Feminino , Grupos Focais , Genética Médica/educação , Teoria Fundamentada , Humanos , Entrevistas como Assunto , Masculino , Pessoa de Meia-Idade , Ontário , Médicos de Atenção Primária/educação
13.
Can Fam Physician ; 65(3): e113-e120, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30867191

RESUMO

OBJECTIVE: To determine whether Canadian children aged 4 to 6 received well-child checks; to explore the nature of these checkups in a large family practice; and to examine the merit of using parent questionnaires about child resilience as a means of introducing a discussion about social and emotional development into this checkup. DESIGN: Three-part mixed-methods study, using data derived from the Canadian Primary Care Sentinel Surveillance Network (CPCSSN), chart reviews of a family practice, and semistructured interviews with parents. SETTING: Primary care practices associated with CPCSSN, and a large primary care practice in Kingston, Ont. PARTICIPANTS: Patients who were born between 2008 and 2011, and a sample of parents whose children were between the ages of 6 and 9. METHODS: International Classification of Diseases, version 9, codes from CPCSSN records were used to identify the prevalence of well-child checks in the 4-to-6 age group. Then 110 randomly selected charts from a large family practice were audited for inclusion of behavioural and social assessments of those aged 4 to 6. Finally, randomly selected parents from the same practice were invited to pilot-test the PERIK (Positive development and resilience in kindergarten) resilience questionnaire, interviewed about its merit, and asked to recall whether the identified areas of child development had been included in previous well-child checkups. MAIN FINDINGS: Data from CPCSSN indicated that 11% of Canadian children aged 4 to 6 had had an explicit well-child check by their family physician. Among the reviewed charts from the one practice, social context was documented for 45% of them, but social and behavioural development was usually not recorded. The 42 parents interviewed found the PERIK questionnaire useful, but not perfect, for opening discussions about aspects of child development that they had not realized were central to the child's future health. CONCLUSION: This study offers an initial approach to exploring resilience in children and therefore addressing recognized and alterable predictors of adult well-being. Early social and emotional development predicts resilience that, in turn, foreshadows future health. The PERIK questionnaire facilitated discussions that could add tremendous value to the well-child checks of children aged 4 to 6.


Assuntos
Desenvolvimento Infantil , Saúde da Criança , Proteção da Criança/estatística & dados numéricos , Pais , Resiliência Psicológica , Inquéritos e Questionários , Canadá , Criança , Transtornos do Comportamento Infantil/diagnóstico , Pré-Escolar , Diagnóstico Precoce , Feminino , Humanos , Masculino , Atenção Primária à Saúde
14.
J Prim Prev ; 40(6): 631-642, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31659580

RESUMO

Resilience, or positive adaptation in the face of adversity, mitigates the negative effects of stress and promotes lifelong physical and mental wellbeing. Identifying adolescents who are struggling with stress could provide opportunities for individual clinical preventive interventions. However, resilience assessments are rarely performed in clinical settings and no clear, evidence-based protocols or language for such exploration exist. The aim of this qualitative study was to identify both clinically feasible methods for assessment, and actual findings, regarding stress, supports, attributes, and strategies youth consider most useful for building resilience. We recruited 59 urban and rural dwelling 13-16 year olds from two Canadian primary care practices. Interviewers asked five open-ended questions about sources of stress and resilience and wrote summaries of answers provided. These were then coded. Researchers independently identified conceptual themes, then reached consensus on these. Stress arose from schoolwork and conflicts with friends or family, rather than from socioeconomic adversities. A majority of participants felt able to manage stresses well, finding strength through (1) social connection with family or friends; (2) self-reliant activities including exercise, music or drawing; and (3) personal attributes such as optimism, calmness and competence. They used a variety of approaches to work through stress, many of which align with key domains of resilience, as well as the novel technique of distraction. Ruminating on stress-provoking events made youth feel they were coping poorly. Most participants experienced stress and drew strength from psychosocial and emotional assets, as well as external resources that fostered resilience. Direct, open conversation was particularly effective for building rapport, augmenting strengths by discussing them, and identifying those who were struggling. Similar questions asked in clinical practice may open doors to deep and, perhaps, transformative conversations and evidence-based preventive interventions.


Assuntos
Saúde do Adolescente , Resiliência Psicológica , Estresse Psicológico , Adaptação Psicológica , Adolescente , Experiências Adversas da Infância , Canadá , Conflito Familiar , Humanos , Entrevistas como Assunto , Saúde Mental , Pesquisa Qualitativa , Autoimagem , Autocontrole , Apoio Social
15.
J Cross Cult Gerontol ; 34(1): 15-24, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30564992

RESUMO

John Henry (JH) theory provides a framework for understanding the physiological toll exerted on low socioeconomic status (SES) individuals as they overcome psychosocial stressors imposed by their environments. This theory suggests that resilience, a seemingly positive social adaptation, may in fact be physically deleterious. JH theory has been well-described in low-SES rural male African Americans, however it is currently unclear whether validity of this theory extends to women, other races and outside the rural US. We assessed whether, in individuals with low income, there is an association between self-mastery/resilience and either blood pressure or depressive symptoms that is different from the association seen in individuals with higher income. Data were obtained from 1353 older men and women participants of the International Mobility in Aging Study (IMIAS). Across 3 countries and 4 sites, higher self-mastery/resilience was associated with lower depressive symptoms in both low and high income groups. In low income individuals from Saint-Hyacinthe, Québec, higher self-mastery/resilience was associated with both higher mean systolic blood pressure (n = 240, ß = 0.135, p ≤ 0.05) and higher mean diastolic blood pressure (n = 240, ß = 0.241, p ≤ 0.0001). In the high income group of Saint-Hyacinthe, no such associations were observed. The findings in the Saint-Hyacinthe cohort (but not the other settings), are consistent with the John Henry hypothesis, and demonstrates this effect extends beyond a rural African American population. This finding indicates that in certain populations, the positive psychological effects of resilience come with a cost to physical health.


Assuntos
Envelhecimento , Nível de Saúde , Pobreza , Resiliência Psicológica , Ajustamento Social , Adaptação Psicológica , Idoso , Envelhecimento/fisiologia , Envelhecimento/psicologia , Determinação da Pressão Arterial/métodos , Determinação da Pressão Arterial/estatística & dados numéricos , Canadá , Depressão/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pobreza/psicologia , Pobreza/estatística & dados numéricos , Teoria Psicológica , Psicologia , Autocontrole/psicologia , Fatores Socioeconômicos , Estresse Psicológico/fisiopatologia
16.
Nat Chem Biol ; 12(1): 15-21, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26571352

RESUMO

Adipose tissue plays important roles in regulating carbohydrate and lipid homeostasis, but less is known about the regulation of amino acid metabolism in adipocytes. Here we applied isotope tracing to pre-adipocytes and differentiated adipocytes to quantify the contributions of different substrates to tricarboxylic acid (TCA) metabolism and lipogenesis. In contrast to proliferating cells, which use glucose and glutamine for acetyl-coenzyme A (AcCoA) generation, differentiated adipocytes showed increased branched-chain amino acid (BCAA) catabolic flux such that leucine and isoleucine from medium and/or from protein catabolism accounted for as much as 30% of lipogenic AcCoA pools. Medium cobalamin deficiency caused methylmalonic acid accumulation and odd-chain fatty acid synthesis. Vitamin B12 supplementation reduced these metabolites and altered the balance of substrates entering mitochondria. Finally, inhibition of BCAA catabolism compromised adipogenesis. These results quantitatively highlight the contribution of BCAAs to adipocyte metabolism and suggest that BCAA catabolism has a functional role in adipocyte differentiation.


Assuntos
Adipócitos/citologia , Adipócitos/metabolismo , Aminoácidos de Cadeia Ramificada/metabolismo , Lipogênese , Obesidade/metabolismo , 3-Metil-2-Oxobutanoato Desidrogenase (Lipoamida)/genética , 3-Metil-2-Oxobutanoato Desidrogenase (Lipoamida)/metabolismo , Células 3T3-L1/efeitos dos fármacos , Acetilcoenzima A/metabolismo , Adipócitos/efeitos dos fármacos , Adipogenia/fisiologia , Tecido Adiposo/citologia , Tecido Adiposo/metabolismo , Animais , Sequência de Bases , Diferenciação Celular/efeitos dos fármacos , Diferenciação Celular/fisiologia , Humanos , Camundongos , Dados de Sequência Molecular , Obesidade/cirurgia , Ácidos Tricarboxílicos/metabolismo , Vitamina B 12/farmacologia
17.
Med J Aust ; 207(9): 401-406, 2017 Nov 06.
Artigo em Inglês | MEDLINE | ID: mdl-29092694

RESUMO

In Australia, the antibiotic resistance crisis may be partly alleviated by reducing antibiotic use in general practice, which has relatively high prescribing rates - antibiotics are mostly prescribed for acute respiratory infections, for which they provide only minor benefits. Current surveillance is inadequate for monitoring community antibiotic resistance rates, prescribing rates by indication, and serious complications of acute respiratory infections (which antibiotic use earlier in the infection may have averted), making target setting difficult. Categories of interventions that may support general practitioners to reduce prescribing antibiotics are: regulatory (eg, changing the default to "no repeats" in electronic prescribing, changing the packaging of antibiotics to facilitate tailored amounts of antibiotics for the right indication and restricting access to prescribing selected antibiotics to conserve them), externally administered (eg, academic detailing and audit and feedback on total antibiotic use for individual GPs), interventions that GPs can individually implement (eg, delayed prescribing, shared decision making, public declarations in the practice about conserving antibiotics, and self-administered audit), supporting GPs' access to near-patient diagnostic testing, and public awareness campaigns. Many unanswered clinical research questions remain, including research into optimal implementation methods. Reducing antibiotic use in Australian general practice will require a range of approaches (with various intervention categories), a sustained effort over many years and a commitment of appropriate resources and support.


Assuntos
Antibacterianos/uso terapêutico , Resistência Microbiana a Medicamentos , Prescrição Inadequada/estatística & dados numéricos , Padrões de Prática Médica/normas , Infecções Respiratórias/tratamento farmacológico , Austrália , Tomada de Decisões , Medicina Geral/normas , Educação em Saúde , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Infecções Respiratórias/epidemiologia
18.
BMC Med Educ ; 17(1): 21, 2017 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-28114984

RESUMO

BACKGROUND: Formal and informal medical curricula convey expectations about professionalization, that is, the development of physician identity, and also about professionalism. This study examined whether, in general, junior residents experienced any dissonance between these roles and focused particularly on how they negotiated conflicts between compassion, self-care, duty and medical expertise. METHODS: In 2015, purposive sampling was used to select 21 first-year residents at a Canadian medical school. Participants listened to a 5-min audio-recording narrated in either male or female voice. Facing compassion fatigue after three obstetrical disasters over less than 2 days the resident narrator asks to go home. Participants reacted in writing to questions about this request and relevant teaching/modelling. Responses were analyzed using a qualitative, exploratory, thematic research design. RESULTS: Four themes were identified: i) empathy, self-doubt and fear of weakness, ii) the need for support from and communication with physicians and others, iii) education received, and iv) professionalization outranks professionalism. Participants agreed that under the circumstances the narrator's care, compassion and request were appropriate. Never the less, many grappled with feeling that asking to be relieved of work demonstrated weakness and a shirking of responsibility. Respondents had received no formal teaching about balancing compassion for patients or self with professional duty. Preceptors' informal teaching and modeling valorized scientific disengagement above all else. What emerged was participants' drive to become detached clinicians who set aside emotional responses and interactions that could impede and be incompatible with professionalization. However, participants also recognized and lamented what was lost in such a transformation. CONCLUSION: In the transition from student to practitioner, trainees' views and the modeling they receive shift emotion and compassion, whether for self or patients, from assets to liabilities as they aim to be invincible medical experts.


Assuntos
Atitude do Pessoal de Saúde , Competência Clínica/normas , Empatia , Internato e Residência , Médicos/psicologia , Médicos/normas , Profissionalismo/normas , Autocuidado , Canadá , Comunicação , Currículo , Medo , Feminino , Humanos , Masculino , Pesquisa Qualitativa , Autoimagem
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