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Introduction: The purpose of this study is to explore career experiences of South Korean Third Culture Kids (TCKs) and to examine their career barriers and career preparation behaviors. Methods: For these aims, eight South Korean TCKs were interviewed and Consensual Qualitative Research (CQR) was used to analyze the interview data. Results: As results, two domains, career barriers and career preparation behaviors were developed. For career barriers and career preparation behaviors of TCKs, five each core ideas were reported. Discussion: At the end of the study, we offered discussions and implications for higher education professionals and career counselors. The findings of the present study will contribute to the career development of TCK populations.
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Sigma-class glutathione transferase (GST) proteins with dual GST and prostaglandin synthase (PGS) activities play a crucial role in the establishment of Clonorchis sinensis infection. Herein, we analyzed the structural and enzymatic properties of sigma-class GST (CsGST-σ) proteins to obtain insight into their antioxidant and immunomodulatory functions in comparison with mu-class GST (CsGST-µ) proteins. CsGST-σ proteins conserved characteristic structures, which had been described in mammalian hematopoietic prostaglandin D2 synthases. Recombinant forms of these CsGST-σ and CsGST-µ proteins expressed in Escherichia coli exhibited considerable degrees of GST and PGS activities with substantially different specific activities. All recombinant proteins displayed higher affinities toward prostaglandin H2 (PGS substrate; average Km of 30.7 and 3.0 µm for prostaglandin D2 [PGDS] and E2 synthase [PGES], respectively) than those toward CDNB (GST substrate; average Km of 1,205.1 µm). Furthermore, the catalytic efficiency (Kcat/Km) of the PGDS/PGES activity was higher than that of GST activity (average Kcat/Km of 3.1, 0.7, and 7.0×10-3 s-1µm-1 for PGDS, PGES, and GST, respectively). Our data strongly suggest that the C. sinensis sigma- and mu-class GST proteins are deeply involved in regulating host immune responses by generating PGD2 and PGE2 in addition to their roles in general detoxification.
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Clonorchis sinensis , Glutationa Transferase , Oxirredutases Intramoleculares , Glutationa Transferase/metabolismo , Glutationa Transferase/química , Glutationa Transferase/genética , Clonorchis sinensis/enzimologia , Clonorchis sinensis/genética , Animais , Oxirredutases Intramoleculares/metabolismo , Oxirredutases Intramoleculares/química , Oxirredutases Intramoleculares/genética , Proteínas Recombinantes/metabolismo , Proteínas Recombinantes/genética , Proteínas Recombinantes/química , Lipocalinas/metabolismo , Lipocalinas/genética , Lipocalinas/química , Lipocalinas/imunologia , Escherichia coli/genética , Prostaglandina H2/metabolismo , Prostaglandina H2/química , CinéticaRESUMO
BACKGROUND: Autonomic function can be measured noninvasively using heart rate variability (HRV), which indexes overall sympathovagal balance. Deceleration capacity (DC) of heart rate is a more specific metric of vagal modulation. Higher values of these measures have been associated with reduced mortality risk primarily in patients with cardiovascular disease, but their significance in community samples is less clear. METHODS AND RESULTS: This prospective twin study followed 501 members from the VET (Vietnam Era Twin) registry. At baseline, frequency domain HRV and DC were measured from 24-hour Holter ECGs. During an average 12-year follow-up, all-cause death was assessed via the National Death Index. Multivariable Cox frailty models with random effect for twin pair were used to examine the hazard ratios of death per 1-SD increase in log-transformed autonomic metrics. Both in the overall sample and comparing twins within pairs, higher values of low-frequency HRV and DC were significantly associated with lower hazards of all-cause death. In within-pair analysis, after adjusting for baseline factors, there was a 22% and 27% lower hazard of death per 1-SD increment in low-frequency HRV and DC, respectively. Higher low-frequency HRV and DC, measured during both daytime and nighttime, were associated with decreased hazard of death, but daytime measures showed numerically stronger associations. Results did not substantially vary by zygosity. CONCLUSIONS: Autonomic inflexibility, and especially vagal withdrawal, are important mechanistic pathways of general mortality risk, independent of familial and genetic factors.
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Veteranos , Humanos , Bradicardia , Desaceleração , Eletrocardiografia Ambulatorial , Frequência Cardíaca/fisiologia , Estudos ProspectivosRESUMO
Epigenetic writers including DNA and histone lysine methyltransferases (DNMT and HKMT, respectively) play an initiative role in the differentiation and development of eukaryotic organisms through the spatiotemporal regulation of functional gene expressions. However, the epigenetic mechanisms have long been suspected in helminth parasites lacking the major DNA methyltransferases DNMT1 and DNMT3a/3b. Very little information on the evolutionary status of the epigenetic tools and their role in regulating chromosomal genes is currently available in the parasitic trematodes. We previously suggested the probable role of a DNMT2-like protein (CsDNMT2) as a genuine epigenetic writer in a trematode parasite Clonorchis sinensis. Here, we analyzed the phylogeny of HKMT subfamily members in the liver fluke and other platyhelminth species. The platyhelminth genomes examined conserved genes for the most of SET domain-containing HKMT and Disruptor of Telomeric Silencing 1 subfamilies, while some genes were expanded specifically in certain platyhelminth genomes. Related to the high gene dosages for HKMT activities covering differential but somewhat overlapping substrate specificities, variously methylated histones were recognized throughout the tissues/organs of C. sinensis adults. The temporal expressions of genes involved in eggshell formation were gradually decreased to their lowest levels proportionally to aging, whereas those of some epigenetic tool genes were re-boosted in the later adult stages of the parasite. Furthermore, these expression levels were significantly affected by treatment with DNMT and HKMT inhibitors. Our data strongly suggest that methylated histones are potent epigenetic markers that modulate the spatiotemporal expressions of C. sinensis genes, especially those involved in sexual reproduction.
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Clonorchis sinensis , Parasitos , Platelmintos , Trematódeos , Animais , Clonorchis sinensis/genética , Histona-Lisina N-Metiltransferase , Casca de Ovo , Epigênese Genética/genética , Histonas , Metilases de Modificação do DNA , DNARESUMO
BACKGROUND: Psychological distress is a recognized risk factor in patients with coronary heart disease (CHD), but its clinical significance is unclear. OBJECTIVES: The purpose of this study was to determine if an index of psychological distress is independently associated with adverse outcomes and significantly contributes to risk prediction. METHODS: Pooled analysis of 2 prospective cohort studies of patients with stable CHD (N = 891). A psychological distress score was constructed using measures of depression, anxiety, anger, perceived stress, and post-traumatic stress disorder, measured at baseline. The study endpoint included cardiovascular death or first or recurrent nonfatal myocardial infarction or hospitalization for heart failure at 5.9 years. RESULTS: In both cohorts, first and recurrent events occurred more often among those in the highest tertile of distress score than those in the lowest tertile. After combining the 2 cohorts, compared with the lowest tertile, the hazards ratio for having a distress score in the highest tertile was 2.27 (95% CI: 1.69-3.06), and for the middle tertile, it was 1.52 (95% CI: 1.10-2.08). Adjustment for demographics and clinical risk factors only slightly weakened the associations. When the distress score was added to a traditional clinical risk model, C-statistic, net reclassification index, and integrative discrimination index all significantly improved. CONCLUSIONS: Among patients with CHD, a composite measure of psychological distress was significantly associated with an increased risk of adverse events and significantly improved risk prediction.
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INTRODUCTION: Incarcerated individuals experience increased health problems, presenting additional challenges as they leave prison and re-enter the community. These challenges are disproportionally experienced by racial and ethnic minorities. Despite these trends, little is known regarding the availability of medical services within the communities to which incarcerated individuals return. METHODS: We examined all prison returns in the state of Florida between 2008 and 2017. We examined the odds of returning from prison to a community that is formally designated as medically underserved by the Health Resources and Services Administration. We also examined whether Florida communities with a greater proportion of racial and ethnic minority returns were more likely to be designated as medically underserved. RESULTS: Overall, each SD increase in community return rate resulted in a 20% increase in the odds of medical underservice designation. For each SD increase in the proportion of black and Latino returns, the odds of medical underservice designation increased by 50% and 14%, respectively, compared with the proportion of white returns. DISCUSSION: Within Florida, previously incarcerated individuals are more likely to return to communities with limited availability of medical services. These findings are even more pronounced for communities with more black returnees. Previously incarcerated individuals are more likely to return to communities that lack the medical infrastructure required to address their unique healthcare needs, potentially leading to worsened health, and increased racial and ethnic health disparities.
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Serviços de Saúde Comunitária , Acessibilidade aos Serviços de Saúde , Prisões , Humanos , Etnicidade , Disparidades em Assistência à Saúde , Hispânico ou Latino , Grupos Minoritários , Estados Unidos , Grupos Raciais , Negro ou Afro-Americano , FloridaRESUMO
OBJECTIVE: This study aimed to investigate differences in transient endothelial dysfunction (TED) with mental stress in Black and non-Black individuals with coronary heart disease (CHD), and their potential impact on cardiovascular outcomes. METHODS: We examined 812 patients with stable CHD between June 2011 and March 2016 and followed through February 2020 at a university-affiliated hospital network. Flow-mediated vasodilation (FMD) was assessed before and 30 minutes after mental stress. TED was defined as a lower poststress FMD than prestress FMD. We compared prestress FMD, post-stress FMD, and TED between Black and non-Black participants. In both groups, we examined the association of TED with an adjudicated composite end point of cardiovascular death or nonfatal myocardial infarction (first and recurring events) after adjusting for demographic, clinical, and socioeconomic factors. RESULTS: Prestress FMD was lower in Black than non-Black participants (3.7 [2.8] versus 4.9 [3.8], p < .001) and significantly declined with mental stress in both groups. TED occurred more often in Black (76%) than non-Black patients (67%; multivariable-adjusted odds ratio = 1.6, 95% confidence interval = 1.5-1.7). Over a median (interquartile range) follow-up period of 75 (65-82) months, 142 (18%) patients experienced either cardiovascular death or nonfatal myocardial infarction. Black participants had a 41.9% higher risk of the study outcome than non-Black participants (95% confidence interval = 1.01-1.95). TED with mental stress explained 69% of this excess risk. CONCLUSIONS: Among CHD patients, Black individuals are more likely than non-Black individuals to develop endothelial dysfunction with mental stress, which in turn explains a substantial portion of their excess risk of adverse events.
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Doenças Cardiovasculares , Doença das Coronárias , Infarto do Miocárdio , Humanos , Fatores Raciais , Vasodilatação , Infarto do Miocárdio/epidemiologia , Endotélio Vascular , Fatores de Risco , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etiologiaRESUMO
BACKGROUND: Microvascular measures of vascular dysfunction during acute mental stress may be important determinants of major adverse cardiovascular events (MACE), especially among younger and middle-aged women survivors of an acute myocardial infarction. METHODS: In the MIMS2 study (Myocardial Infarction and Mental Stress 2), individuals who had been hospitalized for a myocardial infarction in the past 8 months were prospectively followed for 5 years. MACE was defined as a composite index of cardiovascular death and first/recurring events for nonfatal myocardial infarction and hospitalizations for heart failure. Reactive hyperemia index and flow-mediated dilation were used to measure microvascular and endothelial function, respectively, before and 30 minutes after a public-speaking mental stress task. Survival models for recurrent events were used to examine the association between vascular response to stress (difference between poststress and resting values) and MACE. Reactive hyperemia index and flow-mediated dilation were standardized in analyses. RESULTS: Of 263 patients (the mean age was 51 years; range, 25-61), 48% were women, and 65% were Black. During a median follow-up of 4.3 years, 64 patients had 141 adverse cardiovascular events (first and repeated). Worse microvascular response to stress (for each SD decrease in the reactive hyperemia index) was associated with 50% greater risk of MACE (hazard ratio, 1.50 [95% CI, 1.05-2.13]; P=0.03) among women only (sex interaction: P=0.03). Worse transient endothelial dysfunction in response to stress (for each SD decrease in flow-mediated dilation) was associated with a 35% greater risk of MACE (hazard ratio, 1.35 [95% CI, 1.07-1.71]; P=0.01), and the association was similar in women and men. CONCLUSIONS: Peripheral microvascular dysfunction with mental stress was associated with adverse events among women but not men. In contrast, endothelial dysfunction was similarly related to MACE among both men and women. These results suggest a female-specific mechanism linking psychological stress to adverse outcomes.
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Doença da Artéria Coronariana , Hiperemia , Infarto do Miocárdio , Isquemia Miocárdica , Doenças Vasculares , Pessoa de Meia-Idade , Humanos , Feminino , Masculino , Caracteres Sexuais , Infarto do Miocárdio/complicações , Estresse Psicológico/complicações , Fatores de RiscoRESUMO
This study aimed to increase the understanding of this disability disclosure of people with intellectual disability by examining the determinants of their disclosure at work. For this aim, six individuals with intellectual disability were interviewed, and consensual qualitative research (CQR) was used to identify factors related to their disability disclosure. As results, the factors that affect the disability disclosure were largely divided into personal variables and environmental variables, and various factors including confidence, disability severity, employment type, employers, co-workers, and organizational culture were mentioned. The results of this study can help people have better understanding about disability disclosure in employment settings. We also discuss how vocational education for individuals with intellectual disability should be offered.
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Pessoas com Deficiência , Deficiência Intelectual , Humanos , Revelação , Emprego , ConfidencialidadeRESUMO
The purpose of this study was to examine the mediating role of the career decision level (decidedness and comfort) of South Korean college students regarding the relationships between academic self-efficacy and career preparation behavior. For this purpose, the study collected and analyzed data on 296 South Korean college students using SPSS 22.0 and Hayes' (2013) Process Macro tool. The results of the study are as follows. Academic self-efficacy was positively associated with career decision level and career preparation behavior, and career decision level was positively associated with career preparation behavior. In terms of the mediation effect, the career decision level partially mediated the relationships between academic self-efficacy and career preparation behavior. The results of the study provide useful suggestions for interventions in the career counseling of college students.
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Escolha da Profissão , Autoeficácia , Humanos , Estudantes/psicologia , Ocupações , República da CoreiaRESUMO
BACKGROUND: To investigate the cross-sectional and longitudinal relationships between vascular function and circulating progenitor cell (CPC) counts with respect to aging and exposure to risk factors. METHODS: In 797 adult participants, CPCs were enumerated by flow cytometry as CD45med mononuclear cells expressing CD34 epitope and its subsets co-expressing CD133, and chemokine C-X-C motif receptor 4 (CXCR4+). Arterial stiffness was evaluated by tonometry-derived pulse wave velocity (PWV) and microvascular function was assessed as digital reactive hyperemia index (RHI). RESULTS: In cross-sectional analyses, for every doubling in CD34+ cell counts, PWV was 15% higher and RHI was 9% lower, after adjusting for baseline characteristics and risk factors (p for all < 0.01). There were significant CPC-by-age-by-risk factor interactions (p <0.05) for both vascular measures. Among younger subjects (< 48 years), CPC counts were higher in those with risk factors and vascular function was better in those with higher compared to those with lower CPC counts (p for all < 0.0l). In contrast, in older participants, CPCs were not higher in those with risk factors, and vascular function was worse compared to the younger age group. A lower CPC count at baseline was an independent predictor of worsening vascular function during 2-year follow-up. CONCLUSION: A higher CPC count in the presence of risk factors is associated with better vascular function among younger individuals. There is no increase in CPC count with risk factors in older individuals who have worse vascular function. Moreover, a higher CPC count is associated with less vascular dysfunction with aging.
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Análise de Onda de Pulso , Células-Tronco , Humanos , Idoso , Estudos Transversais , Fatores de RiscoRESUMO
Background: Psychological stress disorders are twice as prevalent in women with ischemic heart disease compared to men. The disproportionate psychological health experience of these women is not well understood. The objective of this study was to examine whether neighborhood social factors are associated with disparities in psychological health by gender. Materials and Methods: We studied 286 patients with heart disease recruited from Emory-based hospitals in the Myocardial Infarction and Mental Stress 2 Study (n = 286). A global measure of psychological distress was calculated by taking an average of ranks across symptom scales for depression, post-traumatic stress disorder, anxiety, anger, and perceived stress. The social vulnerability index (SVI) was developed by the Centers for Disease Control and Prevention and was used to rank patients' census tracks on 14 social factors. Beta coefficients for mean ranks in psychological distress scores were estimated per 10-unit increase in SVI percentile ranking using multilevel regression models. Results: The mean age of the sample was 51 years, 49% were women, and 66% African American. After adjusting for demographics, cardiovascular risk factors, and antidepressant use, each 10-unit increase in SVI percentile ranking was associated with 4.65 (95% CI: 0.61-8.69; p = 0.02) unit increase in mean scores for psychological distress among women only (SVI-by-gender-interaction = 0.01). These associations were driven by the SVI themes of lower socioeconomic status and poorer access to housing and transportation. Conclusion: Neighborhood social vulnerability may be a psychosocial stressor that potentiates women's susceptibility to adverse psychological and cardiovascular health.
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Cardiopatias , Angústia Psicológica , Masculino , Humanos , Feminino , Pessoa de Meia-Idade , Vulnerabilidade Social , Características de Residência , Negro ou Afro-Americano/psicologia , Estresse Psicológico/epidemiologia , Estresse Psicológico/psicologiaRESUMO
BACKGROUND: The link between posttraumatic stress disorder (PTSD) and ischemic heart disease remains elusive owing to a shortage of longitudinal studies with a clinical diagnosis of PTSD and objective measures of cardiac compromise. METHODS: We performed positron emission tomography in 275 twins who participated in two examinations approximately 12 years apart. At both visits, we obtained a clinical diagnosis of PTSD, which was classified as long-standing (both visit 1 and visit 2), late onset (only visit 2), and no PTSD (no PTSD at both visits). With positron emission tomography, we assessed myocardial flow reserve (MFR), which, in absence of significant coronary stenoses, indexes coronary microvascular function. We compared positron emission tomography data at visit 2 across the three categories of longitudinally assessed PTSD and examined changes between the two visits. RESULTS: Overall, 80% of the twins had no or minimal obstructive coronary disease. Yet, MFR was depressed in twins with PTSD and was progressively lower across groups with no PTSD (2.13), late-onset PTSD (1.97), and long-standing PTSD (1.93) (p = .01). A low MFR (a ratio <2.0) was present in 40% of the twins without PTSD, in 56% of those with late-onset PTSD, and in 72% of those with long-standing PTSD (p < .001). Associations persisted in multivariable analysis, when examining changes in MFR between visit 1 and visit 2, and within twin pairs. Results were similar by zygosity. CONCLUSIONS: Longitudinally, PTSD is associated with reduced coronary microcirculatory function and greater deterioration over time. The association is especially noted among twins with chronic, long-standing PTSD and is not confounded by shared environmental or genetic factors.
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Doença da Artéria Coronariana , Imagem de Perfusão do Miocárdio , Transtornos de Estresse Pós-Traumáticos , Humanos , Microcirculação , Imagem de Perfusão do Miocárdio/métodos , Perfusão , Tomografia por Emissão de Pósitrons , Transtornos de Estresse Pós-Traumáticos/diagnóstico por imagemRESUMO
Despite recent evidence suggesting that adult trematodes require oxygen for the generation of bioenergy and eggshells, information on the molecular mechanism by which the parasites acquire oxygen remains largely elusive. In this study, the structural and expressional features of globin genes identified in Clonorchis sinensis, a carcinogenic trematode parasite that invades the hypoxic biliary tracts of mammalian hosts, were investigated to gain insight into the molecules that enable oxygen metabolism. The number of globin paralogs substantially differed among parasitic platyhelminths, ranging from one to five genes, and the C. sinensis genome encoded at least five globin genes. The expression of these Clonorchis genes, named CsMb (CsMb1-CsMb3), CsNgb, and CsGbX, according to their preferential similarity patterns toward respective globin subfamilies, exponentially increased in the worms coinciding with their sexual maturation, after being downregulated in early juveniles compared to those in metacercariae. The CsMb1 protein was detected throughout the parenchymal region of adult worms as well as in excretory-secretory products, whereas the other proteins were localized exclusively in the sexual organs and intrauterine eggs. Stimuli generated by exogenous oxygen, nitric oxide (NO), and nitrite as well as co-incubation with human cholangiocytes variously affected globin gene expression in live C. sinensis adults. Together with the specific histological distributions, these hypoxia-induced patterns may suggest that oxygen molecules transported by CsMb1 from host environments are provided to cells in the parenchyma and intrauterine eggs/sex organs of the worms for energy metabolism and/or, more importantly, eggshell formation by CsMb1 and CsMb3, respectively. Other globin homologs are likely to perform non-respiratory functions. Based on the responsive expression profile against nitrosative stress, an oxygenated form of secreted CsMb1 is suggested to play a pivotal role in parasite survival by scavenging NO generated by host immune cells via its NO dioxygenase activity.
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Carcinógenos/metabolismo , Clonorchis sinensis/genética , Clonorchis sinensis/metabolismo , Hipóxia , Mioglobina/genética , Mioglobina/metabolismo , Estresse Nitrosativo , Animais , Bile , Expressão Gênica/efeitos dos fármacos , Globinas/genética , Humanos , Metacercárias , Nitratos/farmacologia , Óxido Nítrico/metabolismo , Nitritos/farmacologia , Oxirredução , Oxigênio/farmacologia , Filogenia , Trematódeos/genética , Trematódeos/metabolismo , Peixe-ZebraRESUMO
Background Black patients tend to develop coronary artery disease at a younger age than other groups. Previous data on racial disparities in outcomes of myocardial infarction (MI) have been inconsistent and limited to older populations. Our objective was to investigate racial differences in the outcome of MI among young and middle-aged patients and the role played by socioeconomic, psychosocial, and clinical differences. Methods and Results We studied 313 participants (65% non-Hispanic Black) <61 years old hospitalized for confirmed type 1 MI at Emory-affiliated hospitals and followed them for 5 years. We used Cox proportional-hazard models to estimate the association of race with a composite end point of recurrent MI, stroke, heart failure, or cardiovascular death after adjusting for demographic, socioeceonomic status, psychological, and clinical risk factors. The mean age was 50 years, and 50% were women. Compared with non-Black patients, Black patients had lower socioeconomic status and more clinical and psychosocial risk factors but less angiographic coronary artery disease. The 5-year incidence of cardiovascular events was higher in Black (35%) compared to non-Black patients (19%): hazard ratio (HR) 2.1, 95% CI, 1.3 to 3.6. Adjustment for socioeconomic status weakened the association (HR 1.3, 95% CI, 0.8-2.4) more than adjustment for clinical and psychological risk factors. A lower income explained 46% of the race-related disparity in outcome. Conclusions Among young and middle-aged adult survivors of an MI, Black patients have a 2-fold higher risk of adverse outcomes, which is largely driven by upstream socioeconomic factors rather than downstream psychological and clinical risk factors.
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População Negra , Doença da Artéria Coronariana , Disparidades nos Níveis de Saúde , Infarto do Miocárdio , Adulto , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/epidemiologia , Doença da Artéria Coronariana/etnologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/epidemiologia , Infarto do Miocárdio/etnologia , Fatores de Risco , Fatores SocioeconômicosRESUMO
OBJECTIVE: Mental stress-induced myocardial ischemia (MSIMI), a transient myocardial ischemic response to mental stress, is associated with poorer outcomes among patients with coronary heart disease and is more likely to occur among women. However, predictors of MSIMI are not well explored. The current study investigated the association between experiences of everyday discrimination and MSIMI among patients with recent myocardial ischemia and contrasted the results with conventional stress-induced myocardial ischemia (CSIMI). We examined sex differences in associations. METHODS: We studied 295 post-MI patients (145 women, 150 men). Provocation of myocardial ischemia with mental stress (speech task) and conventional stress (exercise or pharmacologic) was assessed by myocardial perfusion imaging. Frequency of exposure to everyday discrimination was assessed via questionnaire using the Everyday Discrimination Scale (EDS). RESULTS: The mean age was 51 years in both women and men, and the EDS score ranged from 10 to 38 (mean [standard deviation] = 17 [6] years). After multivariable analysis, each standard deviation increase in the EDS score (more frequent exposure) was associated with an increased odds of MSIMI (odds ratio [OR] = 1.57 [1.10-2.23]). The EDS score was not associated with CSIMI (OR = 0.86 [0.64-1.17]). Women demonstrated a twofold increase (OR = 1.96 [1.13-3.38], p = .02) in the adjusted odds of MSIMI, with each standard deviation increase in the EDS score compared with a 1.4-fold increase (OR = 1.40 [0.80-2.44], p = .24) among men; however, interaction was not statistically significant. CONCLUSIONS: Among post-MI patients, everyday discrimination was positively associated with occurrence of MSIMI, but not with CSIMI; associations were more pronounced among women.
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Infarto do Miocárdio , Isquemia Miocárdica , Imagem de Perfusão do Miocárdio , Adolescente , Adulto , Criança , Teste de Esforço , Feminino , Humanos , Masculino , Isquemia Miocárdica/epidemiologia , Estresse Psicológico/complicações , Estresse Psicológico/epidemiologia , Adulto JovemRESUMO
[Figure: see text].
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Doença da Artéria Coronariana/complicações , Dedos/irrigação sanguínea , Microcirculação , Doença Arterial Periférica/fisiopatologia , Vasodilatação , Adulto , Idoso , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/mortalidade , Feminino , Insuficiência Cardíaca/etiologia , Insuficiência Cardíaca/mortalidade , Humanos , Hiperemia/fisiopatologia , Masculino , Manometria , Pessoa de Meia-Idade , Infarto do Miocárdio/etiologia , Infarto do Miocárdio/mortalidade , Doença Arterial Periférica/complicações , Doença Arterial Periférica/diagnóstico , Doença Arterial Periférica/mortalidade , Valor Preditivo dos Testes , Prognóstico , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Índice de Gravidade de Doença , Fatores de TempoRESUMO
Greater psychological distress is associated with cognitive impairment in healthy adults. Whether such associations also exist in patients with coronary artery disease (CAD) is uncertain. We assessed cognitive function in 496 individuals with CAD using the verbal and visual memory subtests of the Wechsler Memory Scale and executive functioning measured by the Trail Making Test Parts A and B. We used a composite score of psychological distress derived through summation of Z-transformed psychological distress symptom scales (depression, posttraumatic stress, anxiety, anger, hostility and perceived stress) and scores for each individual psychological scale. Multivariable linear regression models were used to determine the association between memory scores (as outcomes) and the psychological distress scores (both composite score and individual scales). After adjusting for demographic and cardiovascular risk factors, a higher psychological distress score was independently associated with worse memory and executive functioning. Each standard deviation increase in psychological distress score was associated with 3% (95% confidence interval [CI], 1%-5%) to 5% (95% CI, 3-7%) worse cognitive performance (higher Trail A and Trail B, and lower verbal and visual memory scores). Among individuals with CAD, a higher level of psychological distress is independently associated with worse cognitive performance. These findings suggest that psychological risk factors play a role in cognitive trajectories of persons with CAD.
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Disfunção Cognitiva , Doença da Artéria Coronariana , Angústia Psicológica , Adulto , Disfunção Cognitiva/psicologia , Doença da Artéria Coronariana/psicologia , Humanos , Fatores de RiscoRESUMO
IMPORTANCE: Compared with older patients, young adults with a history of myocardial infarction (MI) tend to have a higher burden of psychosocial adversity. Exposure to early-life stressors may contribute to the risk of adverse outcomes in this patient population, potentially through inflammatory pathways. OBJECTIVE: To investigate the association of early-life trauma with adverse events and examine whether inflammation plays a role. DESIGN, SETTING, AND PARTICIPANTS: This cohort study included patients aged 18 to 60 years with a verified history of MI in the past 8 months from a university-affiliated hospital network. Baseline data were collected from June 2011 to March 2016, and follow-up data were obtained through July 2019. Analysis began September 2019. EXPOSURES: Early-life trauma was assessed using the Early Trauma Inventory-Self Report short form (ETI-SR-SF), both as a continuous and as a binary variable at the threshold of a score of 7 or higher. Inflammatory biomarkers, interleukin 6, and C-reactive protein were obtained at baseline. MAIN OUTCOMES AND MEASURES: A composite end point of recurrent MI, stroke, heart failure hospitalization, and cardiovascular death over a median 3-year follow-up. RESULTS: Of 300 patients, the mean (SD) age was 51 (7) years, 198 (66%) were African American, and 150 (50%) were women. Compared with participants with MI with an ETI-SR-SF score less than 7, those with a score of 7 or higher had higher levels of interleukin 6 and C-reactive protein at baseline. Compared with participants with an ETI-SR-SF score less than 7, those with a score of 7 or higher were at a greater risk for adverse outcomes, with a hazards ratio of 2.3 (95% CI, 1.3-3.9). Results remained consistent in multivariable analysis. Further adjustment for C-reactive protein rendered the results no longer statistically significant. Early-life trauma displayed a dose-dependent response when analyzed as a continuous variable and by quartiles. CONCLUSIONS AND RELEVANCE: Early-life trauma is an independent risk factor for adverse outcomes in young and middle-aged individuals with a history of MI. Neurobiological mechanisms leading to lifetime activation of systemic inflammatory cascades may be implicated.
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Stress may contribute to progression of coronary heart disease (CHD) through inflammation, especially among women. Thus, we sought to examine whether increased inflammatory response to stress among patients with CHD is associated with a greater risk of cardiovascular events and whether this risk is higher in women. We examined inflammatory biomarkers known to increase with mental stress (speech task), including interleukin-6 (IL-6), monocyte chemoattractant protein-1 (MCP-1), and matrix metallopeptidase-9 (MMP-9) among 562 patients with stable CHD. Inflammatory response, the difference between post-stress and resting values, was examined as a predictor of major adverse cardiovascular events (MACE) using subdistribution hazards models for competing risks adjusting for demographics, cardiovascular risk factors, and medications. MACE was defined as a composite endpoint of cardiovascular death, myocardial infarction, unstable angina with revascularization, and heart failure. All biomarkers were standardized. The mean age was 63 years (range 34-79) and 24% were women. During a median follow-up of 3 years, 71 patients experienced MACE. Overall, there was no significant association between inflammatory response to stress and risk of MACE, but there were sex-based interactions for IL-6 (p = 0.001) and MCP-1 (p = 0.01). The risk of MACE increased 56% (HR: 1.56; 95% CI: 1.21, 2.01; p = 0.001) and 30% (HR: 1.30; 95% 1.09, 1.55; p = 0.004) for each standard deviation increase in IL-6 and MCP-1 response to mental stress for women, respectively, while there was no association among men. Increased inflammation in response to stress is associated with future adverse cardiovascular outcomes among women with CHD.