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1.
Parasites Hosts Dis ; 62(1): 98-116, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38443774

ABSTRACT

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.


Subject(s)
Clonorchis sinensis , Parasites , Platyhelminths , Trematoda , Animals , Clonorchis sinensis/genetics , Histone-Lysine N-Methyltransferase , Egg Shell , Epigenesis, Genetic/genetics , Histones , DNA Modification Methylases , DNA
2.
J Am Heart Assoc ; 13(7): e032740, 2024 Apr 02.
Article in English | MEDLINE | ID: mdl-38533972

ABSTRACT

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.


Subject(s)
Veterans , Humans , Bradycardia , Deceleration , Electrocardiography, Ambulatory , Heart Rate/physiology , Prospective Studies
3.
JACC Adv ; 3(2)2024 Feb.
Article in English | MEDLINE | ID: mdl-38389520

ABSTRACT

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.

4.
J Epidemiol Community Health ; 77(8): 501-506, 2023 08.
Article in English | MEDLINE | ID: mdl-37280066

ABSTRACT

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.


Subject(s)
Community Health Services , Health Services Accessibility , Prisons , Humans , Ethnicity , Healthcare Disparities , Hispanic or Latino , Minority Groups , United States , Racial Groups , Black or African American , Florida
5.
Psychosom Med ; 85(5): 431-439, 2023 06 01.
Article in English | MEDLINE | ID: mdl-37053106

ABSTRACT

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.


Subject(s)
Cardiovascular Diseases , Coronary Disease , Myocardial Infarction , Humans , Race Factors , Vasodilation , Myocardial Infarction/epidemiology , Endothelium, Vascular , Risk Factors , Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/etiology
6.
Arterioscler Thromb Vasc Biol ; 43(4): e112-e120, 2023 04.
Article in English | MEDLINE | ID: mdl-36857628

ABSTRACT

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.


Subject(s)
Coronary Artery Disease , Hyperemia , Myocardial Infarction , Myocardial Ischemia , Vascular Diseases , Middle Aged , Humans , Female , Male , Sex Characteristics , Myocardial Infarction/complications , Stress, Psychological/complications , Risk Factors
7.
Article in English | MEDLINE | ID: mdl-36833769

ABSTRACT

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.


Subject(s)
Disabled Persons , Intellectual Disability , Humans , Disclosure , Employment , Confidentiality
8.
Article in Korean | WPRIM (Western Pacific) | ID: wpr-967899

ABSTRACT

Purpose@#The purpose of this study was to suggest the importance of natural childbirth by investigating the results of midwife-led perinatal periods and whether they were positive experiences for both individual women and their families. @*Methods@#This retrospective study aimed to confirm the perinatal outcomes of midwife-attended vaginal births. Among 1,127 women who gave midwife-led birth in Gyeonggi-do, Seoul between January 1, 2019 and December 31, 2021, data were collected for 829 women. Records were excluded that were missing necessary data. Data on childbirth were analyzed using frequency, percentage, mean, standard deviation, and the chi-square test. @*Results@#Among the mothers who underwent natural childbirth, 549 (66.2%) were multiparous. In addition, all 829 patients (100%) breast-fed their infants. First-degree perineal lacerations occurred in 29.2% of patients, and second-degree lacerations occurred in 48%. Non–high-risk subjects made up 56.0% of the study sample. The average bleeding amount was 281.44±4.50, and the average 1-minute Apgar score for infants was 8.25±0.02. @*Conclusion@#Compared to childbirth in a hospital, natural childbirth was associated with a lower risk of birth canal laceration, postpartum bleeding, and Cesarean section. In addition, the health statuses of the newborns were confirmed to be good . Based on the results of this study, there is a need for a strategy in which midwife-led natural childbirth is integrated into the local medical system, as well as a need to raise women's awareness of natural childbirth and positively influence the experience.

9.
Article in English | WPRIM (Western Pacific) | ID: wpr-1000973

ABSTRACT

Purpose@#This study aimed to develop and test a model for posttraumatic growth among cured patients with COVID-19. This model was based on Calhoun and Tedeschi’s Posttraumatic Growth model and a literature review. @*Methods@#The participants comprised 223 patients cured from COVID-19 who were ≥ 19 years of age. The data were collected through an online questionnaire from March 21 to 24, 2022.The assessment tools included the Impact of Event Scale: Revised Korean version, the Connor-Davidson Resilience Scale, the Distress Dis-closure Index, the Multidimensional Scale of Perceived Social Support, the Korean version of the Event-related Rumination Inventory, and the Korean version of the Post-traumatic Growth Inventory. Data were analyzed using the IBM SPSS version 24.0 and IBM AMOS 26.0. @*Results@#The modified model showed appropriate goodness of fit (χ 2 = 369.90, χ 2 /degree of freedom = 2.09, SRMR = .09, RMESA = .07, CFI = .94, TLI = .93). The post-traumatic growth of cured patients with COVID-19 was explained through distress perception, self-disclosure, and deliberate rumination, with the explanatory power being 70.0%. @*Conclusion@#This study suggests preparing a disaster psychology program involving experts who can activate deliberate rumination is necessary. Further, this study may serve as basic data for developing a program to enhance the post-traumatic growth of patients cured from COVID-19.

10.
Article in English | WPRIM (Western Pacific) | ID: wpr-977205

ABSTRACT

Merkel cell carcinoma (MCC), a rare cutaneous neuroendocrine carcinoma, is most common in sun-exposed areas of aged individuals. Merkel cell polyomavirus (MCPyV) is one causative agent of MCC. Cases of MCC concurrent with other skin tumors, especially squamous cell carcinoma, are rarely reported. Immunohistochemical staining is performed using antibodies to the MCPyV large-T antigen (CM2B4) only in select cases. To date, no cases of MCPyV have been reported in Korea. Here we report a case of MCC concurrent with squamous cell carcinoma in an aged man and discuss the pathogenesis of the case through CM2B4 staining.

11.
Article in English | MEDLINE | ID: mdl-36294282

ABSTRACT

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.


Subject(s)
Career Choice , Self Efficacy , Humans , Students/psychology , Occupations , Republic of Korea
12.
Vasc Med ; 27(6): 532-541, 2022 12.
Article in English | MEDLINE | ID: mdl-36062298

ABSTRACT

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.


Subject(s)
Pulse Wave Analysis , Stem Cells , Humans , Aged , Cross-Sectional Studies , Risk Factors
13.
J Womens Health (Larchmt) ; 31(10): 1440-1449, 2022 Oct.
Article in English | MEDLINE | ID: mdl-35960809

ABSTRACT

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.


Subject(s)
Heart Diseases , Psychological Distress , Male , Humans , Female , Middle Aged , Social Vulnerability , Residence Characteristics , Black or African American/psychology , Stress, Psychological/epidemiology , Stress, Psychological/psychology
14.
Biol Psychiatry ; 91(7): 615-625, 2022 04 01.
Article in English | MEDLINE | ID: mdl-34865854

ABSTRACT

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.


Subject(s)
Coronary Artery Disease , Myocardial Perfusion Imaging , Stress Disorders, Post-Traumatic , Humans , Microcirculation , Myocardial Perfusion Imaging/methods , Perfusion , Positron-Emission Tomography , Stress Disorders, Post-Traumatic/diagnostic imaging
15.
Article in English | WPRIM (Western Pacific) | ID: wpr-925059

ABSTRACT

This report presents the case of a 49-year-old man who presented with giant masses that had recently grown on the bilateral sides of the tongue. A clinical examination revealed rubbery yellowish lesions protruding from the tongue.A panoramic radiograph showed an enlarged soft tissue shadow of the tongue. Computed tomography showed well-defined circumscribed mass exhibiting a homogeneous low density on the bilateral sides of the tongue. On magnetic resonance images, the masses showed a high signal intensity on T1-weighted images and iso-signal intensity with partially hyperintense margin on fat-suppressed T2-weighted images. Surgical excision was performed, and a histopathologic examination confirmed the diagnosis of lipoma. The patient recovered well with no sign ofrecurrence. A giant lipoma is defined as a lipoma larger than 5 cm in diameter. A literature review of giant lipomas of the tongue is also presented herein.

16.
PLoS Negl Trop Dis ; 15(9): e0009811, 2021 09.
Article in English | MEDLINE | ID: mdl-34591853

ABSTRACT

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.


Subject(s)
Carcinogens/metabolism , Clonorchis sinensis/genetics , Clonorchis sinensis/metabolism , Hypoxia , Myoglobin/genetics , Myoglobin/metabolism , Nitrosative Stress , Animals , Bile , Gene Expression/drug effects , Globins/genetics , Humans , Metacercariae , Nitrates/pharmacology , Nitric Oxide/metabolism , Nitrites/pharmacology , Oxidation-Reduction , Oxygen/pharmacology , Phylogeny , Trematoda/genetics , Trematoda/metabolism , Zebrafish
17.
J Am Heart Assoc ; 10(17): e020828, 2021 09 07.
Article in English | MEDLINE | ID: mdl-34431313

ABSTRACT

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.


Subject(s)
Black People , Coronary Artery Disease , Health Status Disparities , Myocardial Infarction , Adult , Coronary Artery Disease/diagnosis , Coronary Artery Disease/epidemiology , Coronary Artery Disease/ethnology , Female , Humans , Male , Middle Aged , Myocardial Infarction/epidemiology , Myocardial Infarction/ethnology , Risk Factors , Socioeconomic Factors
18.
Psychosom Med ; 83(5): 432-439, 2021 06 01.
Article in English | MEDLINE | ID: mdl-34080584

ABSTRACT

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.


Subject(s)
Myocardial Infarction , Myocardial Ischemia , Myocardial Perfusion Imaging , Adolescent , Adult , Child , Exercise Test , Female , Humans , Male , Myocardial Ischemia/epidemiology , Stress, Psychological/complications , Stress, Psychological/epidemiology , Young Adult
20.
Stress Health ; 37(3): 538-546, 2021 Aug.
Article in English | MEDLINE | ID: mdl-33319483

ABSTRACT

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.


Subject(s)
Cognitive Dysfunction , Coronary Artery Disease , Psychological Distress , Adult , Cognitive Dysfunction/psychology , Coronary Artery Disease/psychology , Humans , Risk Factors
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