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1.
Front Psychiatry ; 15: 1382676, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38628258

RESUMO

Mental health professionals are tasked with making difficult clinical decisions in treatment settings. In the forensic system, decision making regarding staff supervised community outings (SSCOs) provides a significant challenge due to the need to balance patient liberties, mental health recovery, and public safety. This study explored the characteristics and rehabilitative nature of SSCOs, characteristics of patients attending SSCOs, and any adverse events that occurred during the outings. Employing a cross-sectional design, 110 patients who participated in SSCOs over a one-year period from a Canadian Forensic Psychiatric Hospital were included. Clinical records were reviewed to capture patient and SSCO variables. Descriptive analyses were used to calculate participant, risk, SSCO, and adverse event characteristics. Qualitative analysis was used to explore the purpose of SSCOs and rehabilitative progress that occurred during the outings. Patients attending SSCOs were comprised of long-stay patients with over half having committed a violent index offence. Almost 75% of patients had a moderate/high risk for violence and 50% of the patients had a moderate/high risk of absconding. During the study period, 463 SSCOs were completed. Most outings focused on developing skills for daily living and staff comments suggested many patients developed skills in these areas. Despite considerable risk profiles and public concern regarding forensic patients having community access, there was a single occurrence of unauthorized leave and no instances of violence or substance use. This research can disrupt stigma, demonstrating that SSCOs support a specific rehabilitative intent, promote community reintegration, and maintain public safety.

3.
Front Pediatr ; 10: 870497, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36120656

RESUMO

Neonatal AKI (NAKI) remains a challenge in low- and middle-income countries (LMICs). In this perspective, we address issues of diagnosis and risk factors particular to less well-resourced regions. The conservative management pre-kidney replacement therapy (pre-KRT) is prioritized and challenges of KRT are described with improvised dialysis techniques also included. Special emphasis is placed on ethical and palliation principles.

4.
Pediatr Infect Dis J ; 40(9): e323-e332, 2021 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-34397776

RESUMO

BACKGROUND: Globally, very few childhood deaths have been attributed to coronavirus disease 2019 (COVID-19). We evaluated clinical, microbiologic and postmortem histopathologic findings in childhood deaths in whom severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was identified antemortem or postmortem. METHODS: Surveillance of childhood deaths was ongoing during the initial COVID-19 outbreak in South Africa from April 14, 2020, to August 31, 2020. All children hospitalized during this time had a SARS-CoV-2 test done as part of standard of care. Postmortem sampling included minimally invasive tissue sampling (MITS) of lung, liver and heart tissue; blood and lung samples for bacterial culture and molecular detection of viruses (including SARS-CoV-2) and bacteria. The cause of death attribution was undertaken by a multidisciplinary team and reported using World Health Organization framework for cause of death attribution. RESULTS: SARS-CoV-2 was identified on antemortem and/or postmortem sampling in 11.7% (20/171) of deceased children, including 13.2% (12/91) in whom MITS was done. Eighteen (90%) of 20 deaths with SARS-CoV-2 infection were <12 months age. COVID-19 was attributed in the causal pathway to death in 91.7% (11/12) and 87.5% (7/8) cases with and without MITS, respectively. Lung histopathologic features in COVID-19-related deaths included diffuse alveolar damage (n = 6, 54.5%), type 2 pneumocyte proliferation (n = 6, 54.5%) and hyaline membrane formation (n = 5, 36.4%). Culture-confirmed invasive bacterial disease was evident in 54.5% (6/11) of COVID-19 attributed deaths investigated with MITS. CONCLUSIONS: COVID-19 was in the causal pathway of 10.5% (18/171) of all childhood deaths under surveillance. The postmortem histopathologic features in fatal COVID-19 cases in children were consistent with reports on COVID-19 deaths in adults; although there was a high prevalence of invasive bacterial disease in the children.


Assuntos
COVID-19/mortalidade , SARS-CoV-2/isolamento & purificação , Adolescente , COVID-19/complicações , COVID-19/patologia , COVID-19/terapia , Criança , Pré-Escolar , Feminino , Gastroenterite/complicações , Humanos , Lactente , Recém-Nascido , Masculino , Respiração Artificial , Doenças Respiratórias/complicações , Convulsões/complicações , África do Sul/epidemiologia
5.
SA J Radiol ; 24(1): 1820, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32670630

RESUMO

BACKGROUND: The role of the voiding cystourethrogram (VCUG) in the follow-up of children with posterior urethral valves (PUVs) post-ablation has been considered a standard practice. The urethral ratio and gradient of change have proven to be useful. OBJECTIVES: We aimed to review the role of the 'ideal' ratio on predicting residual PUV post-ablation. METHODS: A systematic review of the PubMed, SCOPUS and Web of Science databases was performed (April 2019). The search terms included 'Urethral Ratio and Posterior urethral valve ablation'. All cited reference lists were further evaluated for additional inclusive studies. RESULTS: Eleven studies were identified, of which nine were relevant to the topic. Case reports, comments and adult and animal studies were excluded, leaving four studies for critical review. In total, 338 patients were assessed. The control group consisted of 167 age-matched, male children. Study regions included India and Australia. The ages ranged from 15 days to 3.4 years. Ablation methods included the use of a resectoscope with cutting diathermy, cold knife or Bugbee electrode. The mean urethral ratios in the control group ranged from 1.04 to 1.73. The suggested predictive urethral cut-off ratios recommended include 2.2 (p = 0.001), 2.5-3 and 3.5. CONCLUSION: Although the precise cut-off ratio could not be clearly defined in this review, a urethral ratio less than a range of 2.2-3.5 has proven to be a beneficial predictor of ablation success and should thus be incorporated into standard VCUG reporting templates in the follow-up of PUVs in male children in resource-limited settings.

6.
Clin Infect Dis ; 69(Suppl 4): S361-S373, 2019 10 09.
Artigo em Inglês | MEDLINE | ID: mdl-31598659

RESUMO

BACKGROUND: Current estimates for causes of childhood deaths are mainly premised on modeling of vital registration and limited verbal autopsy data and generally only characterize the underlying cause of death (CoD). We investigated the potential of minimally invasive tissue sampling (MITS) for ascertaining the underlying and immediate CoD in children 1 month to 14 years of age. METHODS: MITS included postmortem tissue biopsies of brain, liver, and lung for histopathology examination; microbial culture of blood, cerebrospinal fluid (CSF), liver, and lung samples; and molecular microbial testing on blood, CSF, lung, and rectal swabs. Each case was individually adjudicated for underlying, antecedent, and immediate CoD by an international multidisciplinary team of medical experts and coded using the International Classification of Diseases, Tenth Revision (ICD-10). RESULTS: An underlying CoD was determined for 99% of 127 cases, leading causes being congenital malformations (18.9%), complications of prematurity (14.2%), human immunodeficiency virus/AIDS (12.6%), diarrheal disease (8.7%), acute respiratory infections (7.9%), injuries (7.9%), and malignancies (7.1%). The main immediate CoD was pneumonia, sepsis, and diarrhea in 33.9%, 19.7%, and 10.2% of cases, respectively. Infection-related deaths were either an underlying or immediate CoD in 78.0% of cases. Community-acquired pneumonia deaths (n = 32) were attributed to respiratory syncytial virus (21.9%), Pneumocystis jirovecii (18.8%), cytomegalovirus (15.6%), Klebsiella pneumoniae (15.6%), and Streptococcus pneumoniae (12.5%). Seventy-one percent of 24 sepsis deaths were hospital-acquired, mainly due to Acinetobacter baumannii (47.1%) and K. pneumoniae (35.3%). Sixty-two percent of cases were malnourished. CONCLUSIONS: MITS, coupled with antemortem clinical information, provides detailed insight into causes of childhood deaths that could be informative for prioritization of strategies aimed at reducing under-5 mortality.


Assuntos
Manejo de Espécimes/métodos , Adolescente , Autopsia/métodos , Causas de Morte , Criança , Pré-Escolar , Diagnóstico , Estudos Epidemiológicos , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Projetos Piloto , Estudos Prospectivos , África do Sul
7.
Psychosom Med ; 79(8): 914-919, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28498275

RESUMO

OBJECTIVE: The potential influence of probiotic supplementation on cardiovascular health and stress responsivity remains largely unexplored. Some evidence suggests the possibility that probiotics may influence blood pressure. A separate body of research suggests that exaggerated cardiovascular reactions to acute psychological stress in the laboratory predict cardiovascular morbidity and mortality. The current investigation explored the effect of acute probiotic use on (1) resting cardiovascular measures in healthy young adults and (2) cardiovascular and psychological reactions to an acute psychological stressor in the laboratory. METHOD: Participants (N = 105, M [SD] age = 20.17 [1.26], 84.8% white) completed a 2-week, double-blind, and placebo-controlled trial of a multispecies and multistrain probiotic. Exclusion criteria included previous probiotic use, diagnosed gastrointestinal disorder, and/or current antibiotic use. At visits 1 and 2, participants completed the Paced Auditory Serial Addition Test, a widely used psychological stress task. Participants were randomly assigned to a probiotic blend or matched placebo. RESULTS: Compared with placebo, 2-week probiotic supplementation did not affect resting measures of cardiovascular function, cardiovascular responses during or recovery from stress, or psychological reactions to acute psychological stress. CONCLUSIONS: Contrary to expectations, short-term use of a probiotic supplement in healthy participants did not influence measures of cardiovascular function or responsivity to psychological stress. Future research is needed to determine species- and strain-specific effects of probiotics in healthy participants with various degrees of stress responsiveness, as well as in diseased populations.


Assuntos
Pressão Sanguínea/fisiologia , Frequência Cardíaca/fisiologia , Probióticos/farmacologia , Estresse Psicológico/fisiopatologia , Adolescente , Adulto , Pressão Sanguínea/efeitos dos fármacos , Método Duplo-Cego , Feminino , Seguimentos , Frequência Cardíaca/efeitos dos fármacos , Humanos , Masculino , Probióticos/administração & dosagem , Adulto Jovem
8.
Pediatr Infect Dis J ; 35(10): 1159-61, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27622688

RESUMO

Emphysematous pyelonephritis is a severe necrotizing infection of the kidneys characterized by gas formation within the parenchyma, the collecting system or the perinephric tissue. To our knowledge, there have only been 4 cases of this condition reported in children. We report 2 additional cases in children managed at Chris Hani Baragwanath Academic Hospital, Johannesburg, South Africa.


Assuntos
Enfisema , Pielonefrite , Pré-Escolar , Evolução Fatal , Feminino , Humanos , Lactente , Rim/diagnóstico por imagem , Rim/patologia , Radiografia Abdominal , Tomografia Computadorizada por Raios X
9.
Schizophr Res ; 149(1-3): 96-103, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23815971

RESUMO

OBJECTIVE: The objective of this study is to assess the clinical and social outcomes for a cohort of patients who were part of the redevelopment of psychiatric services in British Columbia. METHOD: This study used a naturalistic, quasi-experimental design, to examine the outcomes of a cohort of 189 long-stay patients at Riverview Hospital (RVH), some of whom moved into Tertiary Psychiatric Residential Facilities (TPRFs), some into the community in less structured facilities, and some remained at RVH. Data was collected from clinical files at RVH and at each participating site, semi-structured interviews and self-report measures were completed with patients. In addition, semi-structured interviews were also conducted with staff members. RESULTS: There was very minimal evidence of transinstitutionalization to prisons or homelessness; one participant resided in a correctional facility, one resided in a forensic facility, and one participant spent some time homeless. In addition, the majority of participants remained in residences that provided 24h care. Eighty percent of our population was diagnosed with a schizophrenia spectrum disorder. Psychiatric symptoms remained fairly stable; some embarrassing social behaviors increased; however, aggressive behaviors showed no increase; neuropsychological deficits did not deteriorate, there were even some improvements. Participants demonstrated increases in several independent living skills including: money management, food preparation and storage, job skills, and transportation skills. In addition, participants experienced a significant increase in their perceived quality of life. CONCLUSIONS: This study builds on existing research demonstrating that well-planned and appropriately resourced hospital closures can lead to positive psycho-social outcomes for participants and can successfully avoid negative outcomes such as transinstitutionalization to the judiciary system and homelessness.


Assuntos
Pacientes Internados , Transtornos Mentais/epidemiologia , Transtornos Mentais/psicologia , Transtornos Mentais/terapia , Comportamento Social , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Colúmbia Britânica , Feminino , Hospitais Psiquiátricos , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Escalas de Graduação Psiquiátrica , Qualidade de Vida , Fatores de Tempo , Adulto Jovem
10.
CMAJ ; 184(17): 1885-92, 2012 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-22966055

RESUMO

BACKGROUND: The number of physicians providing maternity care in Canada is decreasing, and the rate of cesarean delivery is increasing. We evaluated the effect on perinatal outcomes of an interdisciplinary program designed to promote physiologic birth and encourage active involvement of women and their families in maternity care. METHODS: We conducted a retrospective cohort study involving 1238 women who attended the South Community Birth Program in Vancouver, Canada, from April 2004 to October 2010. The program offers comprehensive, collaborative, interdisciplinary care from family physicians, midwives, community health nurses and doulas to a multiethnic, low-income population. A comparison group, matched for neighbourhood of residence, maternal age, parity and gestational age at delivery, comprised 1238 women receiving standard care in community-based family physician, obstetrician and midwife practices. The primary outcome was the proportion of women who underwent cesarean delivery. RESULTS: Compared with women receiving standard care, those in the birth program were more likely to be delivered by a midwife (41.9% v. 7.4%, p < 0.001) instead of an obstetrician (35.5% v. 69.6%, p < 0.001). The program participants were less likely than the matched controls to undergo cesarean delivery (relative risk [RR] 0.76, 95% confidence interval [CI] 0.68-0.84) and, among those with a previous cesarean delivery, more likely to plan a vaginal birth (RR 3.22, 95% CI 2.25-4.62). Length of stay in hospital was shorter in the program group for both the mothers (mean ± standard deviation 50.6 ± 47.1 v. 72.7 ± 66.7 h, p < 0.001) and the newborns (47.5 ± 92.6 v. 70.6 ± 126.7 h, p < 0.001). Women in the birth program were more likely than the matched controls to be breastfeeding exclusively at discharge (RR 2.10, 95% CI 1.85-2.39). INTERPRETATION: Women attending a collaborative program of interdisciplinary maternity care were less likely to have a cesarean delivery, had shorter hospital stays on average and were more likely to breastfeed exclusively than women receiving standard care.


Assuntos
Cesárea/estatística & dados numéricos , Serviços de Saúde Materna/organização & administração , Resultado da Gravidez , Adulto , Aleitamento Materno/estatística & dados numéricos , Colúmbia Britânica , Feminino , Humanos , Tempo de Internação , Serviços de Saúde Materna/normas , Tocologia , Obstetrícia , Equipe de Assistência ao Paciente , Médicos de Família , Padrões de Prática Médica/estatística & dados numéricos , Gravidez , Estudos Retrospectivos
11.
J Urban Health ; 86(5): 804-9, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19533367

RESUMO

Women in the sex trade whose economic and social base are urban streets face multiple dangers of predation, isolation, and illness. A Mobile Access Project (MAP) to provide emergency medical help, peer counseling, condoms and clean needles, resource information and referral, and a place of respite and safety was initiated for sex trade workers in Vancouver, British Columbia, Canada. We conducted surveys with 100 women sex workers who accessed MAP services and reviewed MAP logbooks to document use of services. We assessed the impact of MAP through review of data from a concurrent cohort study of injection drug users and a survey of 97 women at a drop-in center in the Downtown Eastside. Over 90% of MAP clients reported that the van made them feel safer on the street. Sixteen percent of surveyed MAP clients recalled a specific incident in which the van's presence protected them from a physical assault and 10% recalled an incident when its presence had prevented a sexual assault. Distribution of needles and condoms has increased steadily since the implementation of MAP. Eighty percent of women surveyed at a drop-in center in the Downtown Eastside had received services from MAP. The peer-led Mobile Access Project has emerged as a viable harm reduction strategy for serving the immediate health and trauma-related needs of women engaged in street-level sex work.


Assuntos
Redução do Dano , Unidades Móveis de Saúde , Grupo Associado , Trabalho Sexual , Violência/prevenção & controle , Colúmbia Britânica , Relações Comunidade-Instituição , Preservativos/provisão & distribuição , Feminino , Humanos , Entrevistas como Assunto , Unidades Móveis de Saúde/organização & administração , Unidades Móveis de Saúde/estatística & dados numéricos , Programas de Troca de Agulhas/estatística & dados numéricos , Assunção de Riscos , Trabalho Sexual/estatística & dados numéricos , Abuso de Substâncias por Via Intravenosa/complicações , Abuso de Substâncias por Via Intravenosa/epidemiologia , Saúde da População Urbana
12.
Psychosom Med ; 70(6): 646-52, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18606725

RESUMO

OBJECTIVE: To examine the association of both individual and community socioeconomic status (SES) with inflammatory mediators relevant to cardiovascular pathophysiology, i.e., interleukin (IL)-6 and C-reactive protein (CRP), in a midlife community sample. Growing evidence suggests that socioeconomic attributes of both individuals and communities confer risk for cardiovascular morbidity and mortality. METHODS: Subjects were 851 men and women, 30 to 54 years of age (Caucasian = 77%, African-American = 23%). Individual SES was indexed by a composite of educational attainment and family income, and community SES was indexed by corresponding indicators derived from US Census data for participants' census tracts of residence. Plasma concentrations of IL-6 and CRP were determined from blood samples. RESULTS: Regression analyses adjusting for age, sex, and race showed individual SES to be associated inversely with IL-6 (B = -0.126, p < .01), and community SES to be associated inversely with both IL-6 and CRP (B = -0.144, p < .01, B = -0.097, p < .01, respectively). The relationship of community SES with IL-6, but not CRP, persisted on multivariable adjustment for both lifestyle risk factors (smoking, alcohol consumption, sleep, exercise, body mass index) and individual SES (IL-6: B = -0.084, p < .05; CRP: B = -0.047, p > .10). After adjustment for lifestyle factors, however, individual SES was no longer associated with IL-6. CONCLUSIONS: Independent of personal income or educational attainment, midlife adults living in less advantaged neighborhoods exhibit higher levels of circulating proinflammatory markers than residents of more affluent areas. This association may help explain the increased risk of atherosclerotic cardiovascular morbidity and mortality conferred by low community-level SES.


Assuntos
Proteína C-Reativa , Inflamação/sangue , Interleucina-6/sangue , Características de Residência/estatística & dados numéricos , Classe Social , Adulto , Biomarcadores/sangue , Índice de Massa Corporal , Escolaridade , Etnicidade/estatística & dados numéricos , Feminino , Humanos , Renda/estatística & dados numéricos , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Atividade Motora , Pennsylvania , Valor Preditivo dos Testes , Fatores de Risco , Distribuição por Sexo , Fumar
13.
Brain Behav Immun ; 22(5): 753-61, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18226879

RESUMO

Recent evidence suggests that individuals with certain personality traits are at elevated risk for chronic systemic inflammation. To date, this literature has focused on the related traits of hostility and negative affect (NA). In this study, we examine the covariation of trait measures of hostility and NA with the inflammatory mediators interleukin-6 and C-reactive protein. We also explore whether observed associations reflect independent contributions of cognitive, affective and behavioral components of hostile dispositions or shared trait variance with global negative affectivity. Subjects were a diverse sample of 855 relatively healthy middle-aged community volunteers (50% male) from the Adult Health and Behavior Project. The Buss and Perry Aggression Questionnaire (BPAQ) and an Abbreviated Cook-Medley Hostility Scale (ACM) were used to measure dimensions of hostility, and the Multidimensional Personality Questionnaire was used to measure trait NA. Regression analyses accounting for demographic characteristics and medical covariates showed a positive relationship of all components of hostility and trait NA with both IL-6 and CRP. After controlling for trait NA, only the behavioral component of hostility was independently associated with the inflammatory markers. The relationships of cognitive and affective components of hostility with inflammatory markers were largely explained by lifestyle factors, particularly body mass index and smoking. In contrast, lifestyle factors did not explain the covariation of hostile behavioral tendencies and inflammation. These findings suggest that unique attributes of aggressive behavioral tendencies account for much of the variability in inflammation associated with hostility and negative emotions, raising the possibility that individuals high in aggression are at increased risk of inflammatory disease.


Assuntos
Biomarcadores/sangue , Emoções/fisiologia , Inflamação/psicologia , Adaptação Psicológica/fisiologia , Adulto , Afeto/fisiologia , Agressão/fisiologia , Comportamento/fisiologia , Índice de Massa Corporal , Proteína C-Reativa/análise , Cognição/fisiologia , Emoções/classificação , Feminino , Hostilidade , Humanos , Imunoensaio , Inflamação/sangue , Inflamação/imunologia , Interleucina-6/sangue , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Personalidade/fisiologia , Inventário de Personalidade/estatística & dados numéricos , Análise de Regressão , Fatores de Risco , Fumar , Inquéritos e Questionários
14.
Psychosom Med ; 68(6): 895-903, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-17132839

RESUMO

OBJECTIVE: Recent evidence suggests that higher peripheral levels of interleukin 6 (IL-6) are associated with poorer cognitive function and predict future cognitive decline among the elderly. The current investigation extends the study of relationships between plasma IL-6 and cognitive performance to healthy middle-aged adults and to an examination of more specific cognitive domains. METHODS: Five hundred relatively healthy community volunteers aged 30 to 54 had blood drawn for the determination of plasma IL-6 levels and completed a battery of neuropsychological tests evaluating memory and executive function. RESULTS: After controlling for age, gender, race, and education, hierarchical regression analyses revealed an inverse relationship between circulating levels of IL-6 and performance on clusters of tests assessing auditory recognition memory, attention/working memory, and executive function. In contrast, there was no association between IL-6 and performance on tests of general memory. Secondary analyses demonstrated that relationships between IL-6 and auditory recognition and working memory and executive function were independent of a number of health factors, including body mass index, smoking, and hypertension. CONCLUSIONS: These findings contribute to a growing body of evidence linking chronic inflammation to poorer cognitive functioning and extend these findings to a midlife community sample, raising the possibility that IL-6 may represent a biomarker for risk of future cognitive decline.


Assuntos
Transtornos Cognitivos/sangue , Cognição , Interleucina-6/sangue , Adulto , Biomarcadores/análise , Estudos Transversais , Feminino , Humanos , Masculino , Memória , Pessoa de Meia-Idade , Análise e Desempenho de Tarefas
15.
Am J Hypertens ; 19(6): 560-6, 2006 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-16733226

RESUMO

BACKGROUND: Individuals of low socioeconomic status (SES) are at increased risk for cardiovascular disease relative to persons of more advantaged social position. Recent evidence suggests that community SES (variation in the material and social resources of communities) also predicts incident cardiovascular disease, and may do so independently of individual level SES. In this study we examined whether community SES is similarly associated with preclinical vascular disease, as measured by carotid artery ultrasonography. METHODS: Subjects were 230 untreated hypertensive men without history of coronary heart disease, residing in and around Pittsburgh, PA (80% white, 20% African-American; mean age, 56 years). Community SES was defined by levels of income, economic disadvantage (eg, poverty, unemployment), housing costs, and educational attainment in the US Census tract of residence for each subject. A composite community SES score was calculated for each subject as the average of all extracted census measures. Individual SES was estimated from subjects' years of education and current annual income. RESULTS: Regression analyses accounting for traditional risk factors showed community disadvantage to be associated with greater intima-medial thickness (b = 0.02, P < .05) and plaque occurrence (odds ratio [OR] = 1.51, P < .01). The latter association persisted on multivariable adjustment for both risk factors and individual markers of social position (SES) (OR = 1.68, P < .01). CONCLUSIONS: Irrespective of one's own income or educational attainment, untreated hypertensive men living in poorer communities are more likely to exhibit preclinical atherosclerosis than residents of more affluent areas.


Assuntos
Doenças das Artérias Carótidas/economia , Doenças das Artérias Carótidas/epidemiologia , Características de Residência/estatística & dados numéricos , Adulto , Idoso , Pressão Sanguínea , Artérias Carótidas/diagnóstico por imagem , Doenças das Artérias Carótidas/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Classe Social , Túnica Íntima/diagnóstico por imagem , Túnica Média/diagnóstico por imagem , Ultrassonografia
16.
Psychol Med ; 35(4): 519-28, 2005 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15856722

RESUMO

BACKGROUND: We reported previously that the socio-economic status (SES) of individuals predicts variation in brain serotonergic responsivity, as assessed by neuropharmacological challenge in an adult community sample, and that this association is qualified by allelic variation in the serotonin transporter gene-linked polymorphic region (5-HTTLPR). Here we examine whether serotonergic responsivity covaries similarly with the SES of communities, as indexed by US Census data in the same study sample. METHOD: Community SES was defined by levels of income, economic disadvantage, housing costs, and educational attainment of census tracts in which 249 locally recruited study participants (54% male) resided. Serotonergic responsivity was assessed as the baseline-adjusted, peak plasma prolactin (Prl) concentration following acute administration of the serotonin-releasing agent, fenfluramine; tissue for DNA extraction and 5-HTTLPR genotyping was available on 131 participants. RESULTS: Subjects residing in census tracts of lower SES showed a blunted Prl response to fenfluramine (diminished serotonergic responsivity) relative to individuals living in more affluent neighborhoods. When adjusted for personal income and education, SES at the community level continued to predict fenfluramine-stimulated Prl responses and did so independently of 5-HTTLPR genotype. CONCLUSIONS: Area-level indices of relative social and economic disadvantage covary with individual differences in brain serotonergic responsivity, and this association is, in part, independent of individually defined SES. These findings may be relevant to reported effects of low community SES on the prevalence of psychiatric disorders or behaviors associated with dysregulation of central serotonergic function, such as depression, impulsive aggression, and suicide.


Assuntos
Encéfalo/fisiopatologia , Características de Residência , Serotonina/fisiologia , Meio Social , Fatores Socioeconômicos , Adulto , Alelos , Feminino , Fenfluramina , Genótipo , Humanos , Masculino , Glicoproteínas de Membrana/genética , Proteínas de Membrana Transportadoras/genética , Transtornos Mentais/genética , Transtornos Mentais/fisiopatologia , Pessoa de Meia-Idade , Proteínas do Tecido Nervoso/genética , Polimorfismo Genético/genética , Prolactina/sangue , Carência Psicossocial , Medição de Risco , Fatores de Risco , Proteínas da Membrana Plasmática de Transporte de Serotonina
17.
Pain ; 106(3): 285-295, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14659511

RESUMO

Research has demonstrated that exposure to acute stress may attenuate pain perception. Mechanisms of this effect in humans have not been determined. This study was conducted to determine the extent to which psychophysiological and adrenocortical responses to acute stress predict subsequent pain perception. One hundred and fifty-two healthy participants (80 women) were assigned to one of two conditions: rest followed by the cold pressor test (CPT; N=76) or stress followed by CPT (N=76). The stress protocol consisted of a public-speaking challenge. Participants rated their pain every 15 s during a 90-s hand CPT (0-4 degrees C), and they completed the short form of the McGill Pain Questionnaire. Salivary cortisol, mood, blood pressure (BP), and impedance cardiography measures were collected in both conditions. Women had lower BP and reported greater pain than men in both conditions (ps<0.01). Participants in the stress condition reported less pain during CPT than those in the rest condition (p=0.02). Regression analyses demonstrated that the stress effect on pain ratings was mediated by systolic BP level during stress; however, cortisol responses did not affect this relationship. Mood changes were independent predictors of pain. The study demonstrates that BP changes in response to stress mediate the stress-induced attenuation of pain perception.


Assuntos
Pressão Sanguínea/fisiologia , Hidrocortisona/metabolismo , Medição da Dor/métodos , Dor/metabolismo , Estresse Fisiológico/metabolismo , Adulto , Análise de Variância , Distribuição de Qui-Quadrado , Feminino , Humanos , Masculino , Dor/psicologia , Medição da Dor/psicologia , Estresse Fisiológico/psicologia
18.
Pain ; 96(1-2): 197-204, 2002 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-11932075

RESUMO

Research has demonstrated that women report more pain than men, and clinical observations suggest that attenuated adrenocortical activity is associated with high pain sensitivity. The extent to which cortisol concentrations and hemodynamics contribute to gender differences in pain sensitivity has not been investigated. Thirty-four women and 31 men performed the hand cold pressor test (CPT). Participants rated their pain every 15 s during a 90-s CPT and a 90-s post-CPT recovery period and reported pain using the McGill Pain Questionnaire (MPQ). Salivary cortisol samples and cardiovascular measures were collected prior to, during, and after the CPT. Women reported greater pain than men during and after the CPT and on the MPQ (Ps<0.01). CPT disrupted the expected diurnal decline in cortisol, as shown by a significant increase in cortisol concentration post-CPT (P<0.01) in men and women. Regression analyses revealed that pre-CPT cortisol concentrations predicted lower pain reports during and after CPT in men only (P<0.01). Systolic blood pressure (BP) and stroke volume correlated negatively with pain reports only in women (Ps<0.05). Controlling for potential confounding variables did not alter these relationships. The negative association between pre-CPT cortisol and pain perception in men and the association between BP and pain in women demonstrate different physiological predictors of pain perception in men and women.


Assuntos
Hemodinâmica/fisiologia , Hidrocortisona/sangue , Limiar da Dor/fisiologia , Caracteres Sexuais , Adulto , Pressão Sanguínea/fisiologia , Temperatura Baixa , Feminino , Frequência Cardíaca/fisiologia , Humanos , Masculino , Valor Preditivo dos Testes , Volume Sistólico/fisiologia , Resistência Vascular/fisiologia
19.
Pain ; 88(1): 61-68, 2000 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11098100

RESUMO

Previous work has suggested an attenuated sensitivity to painful stimulation in hypertensive men. We recently reported that, compared with persons with negative parental history, men, but not women, with a positive history for hypertension showed attenuated pain perception. This study specifically addressed factors that predict pain perception in women, including blood pressure, parental history and mood states. Fifty-four normotensive women with positive (PH+; n = 20) or negative parental history (PH-; n = 34) for hypertension and high or low casual systolic blood pressure (BP) performed the cold pressor (CP) test. Participants rated their pain every 15 s during a 90-s hand CP (0-4 degrees C) and a 90-s post-CP rest period. Detailed mood ratings were obtained immediately before the CP test. Data were evaluated using multivariate repeated measure analyses of variance and regression analyses. PH+ and PH- women did not differ in age, height, weight, education, resting BP, or heart rate. PH+ and PH- women did not differ in pain ratings during or after the CP, or pain ratings using the McGill Pain Questionnaire (MPQ), and they did not differ in their cardiovascular responses to the CP, confirming our earlier study in a separate sample. Women with high casual systolic BP reported significantly less pain, especially after the CP (P < 0.01). MPQ total scores confirmed this finding with high BP women reporting less pain than low BP women (P < 0.05). Regression analyses confirmed these effects. Controlling for potential confounding variables did not alter these relationships. These findings suggest that in women, phenotype systolic BP may be a better predictor of hypoalgesia than parental history of hypertension.


Assuntos
Pressão Sanguínea/fisiologia , Hipertensão/genética , Limiar da Dor , Adulto , Afeto , Fenômenos Fisiológicos Cardiovasculares , Temperatura Baixa , Feminino , Previsões , Humanos , Registros Médicos , Dor/etiologia , Dor/fisiopatologia , Dor/psicologia , Medição da Dor , Pais
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