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1.
Proc Natl Acad Sci U S A ; 116(23): 11370-11379, 2019 06 04.
Artigo em Inglês | MEDLINE | ID: mdl-31113877

RESUMO

Aging and psychosocial stress are associated with increased inflammation and disease risk, but the underlying molecular mechanisms are unclear. Because both aging and stress are also associated with lasting epigenetic changes, a plausible hypothesis is that stress along the lifespan could confer disease risk through epigenetic effects on molecules involved in inflammatory processes. Here, by combining large-scale analyses in human cohorts with experiments in cells, we report that FKBP5, a protein implicated in stress physiology, contributes to these relations. Across independent human cohorts (total n > 3,000), aging synergized with stress-related phenotypes, measured with childhood trauma and major depression questionnaires, to epigenetically up-regulate FKBP5 expression. These age/stress-related epigenetic effects were recapitulated in a cellular model of replicative senescence, whereby we exposed replicating human fibroblasts to stress (glucocorticoid) hormones. Unbiased genome-wide analyses in human blood linked higher FKBP5 mRNA with a proinflammatory profile and altered NF-κB-related gene networks. Accordingly, experiments in immune cells showed that higher FKBP5 promotes inflammation by strengthening the interactions of NF-κB regulatory kinases, whereas opposing FKBP5 either by genetic deletion (CRISPR/Cas9-mediated) or selective pharmacological inhibition prevented the effects on NF-κB. Further, the age/stress-related epigenetic signature enhanced FKBP5 response to NF-κB through a positive feedback loop and was present in individuals with a history of acute myocardial infarction, a disease state linked to peripheral inflammation. These findings suggest that aging/stress-driven FKBP5-NF-κB signaling mediates inflammation, potentially contributing to cardiovascular risk, and may thus point to novel biomarker and treatment possibilities.


Assuntos
Envelhecimento/genética , Doenças Cardiovasculares/genética , Epigênese Genética/genética , Inflamação/genética , NF-kappa B/genética , Estresse Psicológico/genética , Proteínas de Ligação a Tacrolimo/genética , Regulação para Cima/genética , Senescência Celular/genética , Pré-Escolar , Transtorno Depressivo Maior/genética , Feminino , Estudo de Associação Genômica Ampla/métodos , Humanos , Masculino , Fatores de Risco , Transdução de Sinais/genética
2.
Toxicol Appl Pharmacol ; 416: 115444, 2021 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-33549591

RESUMO

Health disparities exist dependent on socioeconomic status, living conditions, race/ethnicity, diet, and exposures to environmental pollutants. Herein, the various exposures contributing to a person's exposome are collectively considered social determinants of health (SDOH), and the SDOH-exposome impacts health more than health care. This review discusses the extent of evidence of the physiologic consequences of these exposures at the intracellular level. We consider how the SDOH-exposome, which captures how individuals live, work and age, induces cell processes that modulate a conceptual "redox rheostat." Like an electrical resistor, the SDOH-exposome, along with genetic predisposition and age, regulate reductive and oxidative (redox) stress circuits and thereby stimulate inflammation. Regardless of the source of the SDOH-exposome that induces chronic inflammation and immunosenescence, the outcome influences cardiometabolic diseases, cancers, infections, sepsis, neurodegeneration and autoimmune diseases. The endogenous redox rheostat is connected with regulatory molecules such as NAD+/NADH and SIRT1 that drive redox pathways. In addition to these intracellular and mitochondrial processes, we discuss how the SDOH-exposome can influence the balance between metabolism and regulation of immune responsiveness involving the two main molecular drivers of inflammation, the NLRP3 inflammasome and NF-κB induction. Mitochondrial and inflammasome activities play key roles in mediating defenses against pathogens and controlling inflammation before diverse cell death pathways are induced. Specifically, pyroptosis, cell death by inflammation, is intimately associated with common disease outcomes that are influenced by the SDOH-exposome. Redox influences on immunometabolism including protein cysteines and ion fluxes are discussed regarding health outcomes. In summary, this review presents a translational research perspective, with evidence from in vitro and in vivo models as well as clinical and epidemiological studies, to outline the intracellular consequences of the SDOH-exposome that drive health disparities in patients and populations. The relevance of this conceptual and theoretical model considering the SARS-CoV-2 pandemic are highlighted. Finally, the case of asthma is presented as a chronic condition that is modified by adverse SDOH exposures and is manifested through the dysregulation of immune cell redox regulatory processes we highlight in this review.


Assuntos
Disparidades nos Níveis de Saúde , Mediadores da Inflamação/metabolismo , Líquido Intracelular/metabolismo , Estresse Oxidativo/fisiologia , Determinantes Sociais da Saúde/tendências , Poluentes Ambientais/efeitos adversos , Poluentes Ambientais/imunologia , Poluentes Ambientais/metabolismo , Humanos , Mediadores da Inflamação/imunologia , Líquido Intracelular/imunologia , Pesquisa Translacional Biomédica/métodos , Pesquisa Translacional Biomédica/tendências
3.
J Nurs Adm ; 50(6): 322-327, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32427663

RESUMO

OBJECTIVE: To determine a just and consistent practice for creating nursing assignments. BACKGROUND: Traditional methods of assigning patients to nurses may lead to unbalanced nursing workload. This article describes the ongoing, hospital-wide effort to evaluate and implement a nursing assignment tool based on electronic health record (EHR) functionality and auto-calculated nursing workload scores. METHODS: EHR records of individual patient workload scores from all hospital units were collected from August 2017 to June 2018. A nurse-specific total workload score was summed for each staff. Then, each hospital unit's mean nurse workload score and standard deviation, along with the unit's nurse-to-patient ratio, were used to calculate levels of high, medium, and low nursing workload measurement (NWM). RESULTS: Mean patient-specific workload scores varied greatly across hospital units. Unit-specific nurse-to-patient ratios were factored into NWM scores to create ranges for assignments that were relatively consistent across the institution. CONCLUSION: The use of objective, electronically generated nursing workload scores, combined with traditional nurse-to-patient ratios, provides accurate real-time nurse staffing needs that can inform best practice in staffing. The confirmation of individual patient workload scores and an appreciation for the complexity of EHR vendor rules are necessary for successful implementation. Automation ensures patient safety, staff satisfaction, and optimal resource allocation.


Assuntos
Registros Eletrônicos de Saúde , Recursos Humanos de Enfermagem Hospitalar/provisão & distribuição , Admissão e Escalonamento de Pessoal , Qualidade da Assistência à Saúde/normas , Carga de Trabalho/psicologia , Humanos , Pacientes Internados , Pesquisa em Administração de Enfermagem , Admissão e Escalonamento de Pessoal/organização & administração , Admissão e Escalonamento de Pessoal/normas , Índice de Gravidade de Doença , Inquéritos e Questionários
4.
Environ Res ; 171: 523-529, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30743244

RESUMO

BACKGROUND: Mechanistic studies support the potential for mercury (Hg) to alter immunity, including via in utero exposure. As yet, there are few prospective studies of in utero Hg exposure and subsequent immune-related outcomes, especially in infancy. OBJECTIVES: We investigated the association of biomarkers of prenatal Hg exposure and maternal silver-mercury dental amalgams with the occurrence of infant allergy, respiratory infection, and respiratory symptoms in the first year of life. METHODS: The New Hampshire Birth Cohort Study (NHBCS) ascertained information on infant allergies, infections and symptoms through telephone interviews at 4, 8 and 12 months postpartum and measured total Hg in maternal toenails collected at ~28-30 weeks gestation. Information on maternal fish consumption and presence of dental amalgams was obtained from a questionnaire administered at study enrollment at 24-28 weeks. A total of 1321 NHBCS mother-infant pairs had at least one Hg exposure measure (toenail Hg or information on dental amalgams) and information on dietary fish intake. Generalized linear models and generalized estimating equation models with Poisson regression adjusted for potential confounders (maternal age, level of education, parity, smoking, alternative Healthy Eating Index-2010, infant sex, gestational age, feeding mode, and day care attendance) were used to assess the association between infant outcomes and prenatal toenail Hg levels. We subsetted this analysis on mothers who consumed fish (n = 706) as a measure of in utero methylmercury (MeHg) exposure. Associations between infant outcomes and dental amalgams as a measure of in utero inorganic Hg exposure were assessed among mothers who did not consume fish (n = 218). RESULTS: Among women who ate fish during pregnancy, higher maternal toenail Hg concentrations were associated with an increased risk of lower respiratory infections and respiratory symptoms requiring a doctor visit among infants age 9-12 months (relative risk (RR) 1.4 (95% CI: 1.1, 1.9) and 1.2 (95% CI: 1.0, 1.4) respectively), whereas a reduced risk of lower respiratory infections was observed among infants 0-4 months of age (RR = 0.7 (95% CI: 0.5, 1.0). We found little to no evidence of associations of toenail Hg with upper respiratory infections, allergy or eczema at any age to one year. Among infants of mothers who did not consume fish, we found an elevated risk of upper respiratory infections requiring a doctor visit in relation to having dental amalgams during pregnancy (RR = 1.5 (95% CI: 1.1, 2.1)). Overall, weaker associations were observed with lower respiratory infections, respiratory symptoms, and medically confirmed allergies, and there was no association with eczema. CONCLUSIONS: Our analyses of a US birth cohort, along with prior mechanistic work, raise the possibility that gestational Hg exposure through fish/seafood consumption and dental amalgams may alter respiratory infections and respiratory symptoms in infants.


Assuntos
Exposição Ambiental/estatística & dados numéricos , Mercúrio , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Doenças Respiratórias/epidemiologia , Animais , Estudos de Coortes , Feminino , Humanos , Lactente , Masculino , New Hampshire/epidemiologia , Gravidez , Estudos Prospectivos
5.
Int Arch Occup Environ Health ; 91(5): 623-631, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29687327

RESUMO

OBJECTIVES: Emerging cross-sectional research has identified lack of supportive leadership behavior (SLB) as a risk factor for workforce health. However, prospective evidence is hitherto lacking. SLB denotes support in difficult situations, recognition and feedback on work tasks. This study aims to determine the effect of SLB on suboptimal self-rated health (SRH) after 10 years considering potential moderators such as ages, sex, occupation and job strain. METHODS: The sample included 884 employed participants drawn from the population-based prospective MONICA/KORA Study. SLB, SRH, as well as job strain were assessed by questionnaire. Logistic regressions estimated odds ratios (ORs) and corresponding 95% confidence intervals (CIs) for the effect of SLB at baseline on suboptimal SRH at follow-up. Analyses were adjusted for age, gender, lifestyle (alcohol, smoking, physical activity), socioeconomic status as well as for SRH and job strain at baseline. RESULTS: Lack of SLB was associated with suboptimal SRH at baseline [OR 2.00, (95% CI 1.19-3.46)] and at follow-up [OR 2.33, (95% CI 1.40-3.89)]. Additional adjustment for job strain did not substantially alter this association [OR 2.06, (95% CI 1.20-3.52)]. However, interactions between SLB and job strain as well as gender became evident, indicating moderating influences on the association between SLB and SRH. CONCLUSION: Lack of supportive leadership was associated with suboptimal SRH at 10 years' follow-up in men, even if SRH at baseline and other risk factors were taken into account. This effect is likely to be moderated by job strain.


Assuntos
Nível de Saúde , Liderança , Estresse Ocupacional/psicologia , Local de Trabalho/psicologia , Adulto , Feminino , Humanos , Relações Interprofissionais , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Distribuição por Sexo , Apoio Social , Inquéritos e Questionários
8.
Toxicol Appl Pharmacol ; 289(2): 313-22, 2015 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-26391182

RESUMO

The generation of an immune response against infectious and other foreign agents is substantially modified by allostatic load, which is increased with chemical, physical and/or psychological stressors. The physical/psychological stress from cold-restraint (CR) inhibits host defense against Listeria monocytogenes (LM), due to early effects of the catecholamine norepinephrine (NE) from sympathetic nerves on ß1-adrenoceptors (ß1AR) of immune cells. Although CR activates innate immunity within 2h, host defenses against bacterial growth are suppressed 2-3 days after infection (Cao and Lawrence 2002). CR enhances inducible nitric oxide synthase (iNOS) expression and NO production. The early innate activation leads to cellular reduction-oxidation (redox) changes of immune cells. Lymphocytes from CR-treated mice express fewer surface thiols. Splenic and hepatic immune cells also have fewer proteins with free thiols after CR and/or LM, and macrophages have less glutathione after the in vivo CR exposure or exposure to NE in vitro. The early induction of CR-induced oxidative stress elevates endoplasmic reticulum (ER) stress, which could interfere with keeping phagocytized LM within the phagosome or re-encapsuling LM by autophagy once they escape from the phagosome. ER stress-related proteins, such as glucose-regulated protein 78 (GRP78), have elevated expression with CR and LM. The results indicate that CR enhances the unfolded protein response (UPR), which interferes with host defenses against LM. Thus, it is postulated that increased stress, as exists with living conditions at low socioeconomic conditions, can lower host defenses against pathogens because of oxidative and ER stress processes.


Assuntos
Estresse do Retículo Endoplasmático , Retículo Endoplasmático/metabolismo , Listeriose/metabolismo , Macrófagos Peritoneais/efeitos dos fármacos , Estresse Fisiológico , Estresse Psicológico/metabolismo , Animais , Autofagia , Células Cultivadas , Temperatura Baixa , Modelos Animais de Doenças , Retículo Endoplasmático/imunologia , Retículo Endoplasmático/microbiologia , Retículo Endoplasmático/patologia , Chaperona BiP do Retículo Endoplasmático , Regulação da Expressão Gênica , Glutationa/metabolismo , Proteínas de Choque Térmico/metabolismo , Interações Hospedeiro-Patógeno , Listeriose/imunologia , Listeriose/microbiologia , Listeriose/patologia , Macrófagos Peritoneais/imunologia , Macrófagos Peritoneais/metabolismo , Macrófagos Peritoneais/microbiologia , Macrófagos Peritoneais/patologia , Camundongos Endogâmicos BALB C , Camundongos Knockout , Estresse Oxidativo , Fagocitose , Receptores Adrenérgicos beta 1/deficiência , Receptores Adrenérgicos beta 1/genética , Receptores Adrenérgicos beta 2/deficiência , Receptores Adrenérgicos beta 2/genética , Restrição Física , Transdução de Sinais , Estresse Psicológico/etiologia , Estresse Psicológico/imunologia , Estresse Psicológico/patologia , Fatores de Tempo , Resposta a Proteínas não Dobradas
9.
Cancers (Basel) ; 16(7)2024 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-38610975

RESUMO

PURPOSE: To review the childhood risk factors for pediatric cancer (diagnosis before age 20). METHODS: We conducted literature searches using Ovid Medline and Scopus to find primary research studies, review articles, and meta-analyses published from 2014 to 3 March 2021. RESULTS: Strong evidence indicates that an array of genetic and epigenetic phenomena, structural birth defects, and chromosomal anomalies are associated with an increased risk of various childhood cancers. Increased risk is also associated with prior cancer, likely due to previous treatment agents and therapeutic ionizing radiation. Convincing evidence supports associations between several pediatric cancers and ionizing radiation, immunosuppression, and carcinogenic virus infection both in healthy children and in association with immune suppression following organ transplantation. Breastfeeding and a childhood diet rich in fruits and vegetables appears to reduce the risk of pediatric leukemia but the evidence is less strong. Childhood vaccination against carcinogenic viruses is associated with a lower risk of several cancers; there is less strong evidence that other childhood vaccinations more broadly may also lower risk. Ultraviolet (UV) radiation is associated with increased melanoma risk, although most melanomas following childhood UV exposure occur later, in adulthood. Evidence is weak or conflicting for the role of body mass index, other childhood infections, allergies, and certain treatments, including immunomodulator medications and human growth therapy.

10.
Cancer Metastasis Rev ; 31(1-2): 235-46, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22198520

RESUMO

Our understanding of the role of lymph nodes (LN) in the metastasization process (MET) is marginal. Positive LNs (pLN) are the most important prognostic factor and lymph node dissection (LND) is still standard practice in primary treatment. However, up to now, there is almost no evidence that elective LND has a survival benefit. Based on many clinical and experimental findings, we propose that tumor foci in regional LN are incapable of metastasization and can therefore not infiltrate further LN and organs. Available data demonstrate a very early infiltration of MET capable tumor cells from the primary tumor into regional LN, and thereafter an increased probability of subsequent LN infiltrations. Disparate growth rates of the first versus subsequent infiltrating tumors as well as the asymptotic growth and prognosis of large tumor foci in LN explain many clinical observations for solid tumors. The consequence of the hypothesis "pLN do not metastasize" would impact clinical treatment and research and contribute to understanding the mounting evidence against LND.


Assuntos
Metástase Linfática , Humanos , Excisão de Linfonodo , Linfonodos/patologia , Linfonodos/cirurgia , Metástase Linfática/patologia , Metástase Neoplásica , Neoplasias/mortalidade , Neoplasias/patologia , Prognóstico , Ensaios Clínicos Controlados Aleatórios como Assunto
11.
Psychosom Med ; 75(3): 317-25, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23460721

RESUMO

BACKGROUND: We examined the association between job strain and coronary heart disease (CHD) and investigated the role of markers of inflammation and endothelial dysfunction as possible mediators of job strain-associated CHD risk. METHODS: The sample (n = 1027) included employed participants (35-64 years old, 68% male) from the population-based MONICA/KORA (Monitoring of Trends and Determinants in Cardiovascular Disease/Kooperative Gesundheitsforschung in der Region Augsburg) studies. At baseline Karasek's Job Strain Index was assessed during standardized personal interviews, and nine biological markers were measured (1984-1995). Participants were followed (average, 12 years) to assess incident events (sudden cardiac death or fatal and nonfatal myocardial infarction). In this case-cohort design, the final sample contained 114 cases and 913 noncases. RESULTS: Baseline distributions of cardiometabolic risk factors were significantly different between cases and noncases, with no detectable job strain-specific differences. However, cases with high job strain had higher monocyte chemoattractant protein-1, interleukin (IL)-8, and IL-18 compared with noncases with high job strain. High-sensitivity C-reactive protein, IL-6, and soluble intercellular adhesion molecule-1 were increased in cases versus noncases, regardless of work stress. Job strain was associated with incident coronary events in Cox proportional hazards models adjusted for age, sex, and survey (hazard ratio = 2.57, 95% confidence interval = 1.09-6.07) and after adjustment for CHD risk factors (2.35, 1.003-5.49). Adjustment for monocyte chemoattractant protein-1 or IL-8 increased this risk estimate by 14.5% or 9.4%, respectively, whereas adjustment for C-reactive protein and soluble intercellular adhesion molecule-1 led to decreased hazard ratios (-9.9% and -5.5%, respectively). CONCLUSIONS: Job strain increased CHD risk in healthy workers; the associated inflammatory burden may contribute to stress-related coronary pathogenesis.


Assuntos
Doença das Coronárias/epidemiologia , Emprego/psicologia , Inflamação/epidemiologia , Estresse Psicológico/epidemiologia , Adulto , Biomarcadores/sangue , Proteína C-Reativa/metabolismo , Estudos de Coortes , Doença das Coronárias/sangue , Feminino , Alemanha/epidemiologia , Humanos , Inflamação/sangue , Molécula 1 de Adesão Intercelular/sangue , Interleucina-18/sangue , Interleucina-6/sangue , Interleucina-8/sangue , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Fatores de Risco , Estresse Psicológico/sangue
12.
Artigo em Inglês | MEDLINE | ID: mdl-37227394

RESUMO

Objective: Substance use is a common co-occurrence among psychiatrically hospitalized adults, yet it is especially difficult to identify in those with serious mental illness. Existing screening instruments are not feasible for individuals with serious mental illness, as they rely heavily on subjective self-report. This study aimed to develop and validate an objective substance use screening instrument for use in seriously mentally ill patient populations.Methods: Objective elements were extracted from existing substance use screening instruments and used to develop a new, data-driven referral tool, the New Hampshire Hospital screening and referral algorithm (NHHSRA). Descriptive statistics were employed to compare NHHSRA summed score and individual patient data elements in a convenience sample of patients who were referred to the Addiction Services by expert addiction psychiatrist evaluation to those who were not referred. Pearson correlation coefficients and logistic regression models assessed the association between patient referral and the overall NHHSRA score and individual items. The NHHSRA was then piloted in a smaller convenience sample of patients against the standard clinical-based identification for substance use treatment needs.Results: The instrument consists of 5 objective items. These were tested in a sample of 302 sequentially admitted adults with serious mental illness. Three of the items were significantly associated with likelihood of benefitting from referral for substance use interventions (maximum likelihood estimate and standard deviation [SD] for positive non-tetrahydrocannabinol [non-THC] toxicology screen or > 0% blood alcohol level = 3.61 [0.6]; diagnosis of a substance use disorder = 4.89 [0.73]; and medication-assisted treatment or relapse prevention = 2.78 [0.67]), and these were prioritized in building a decision tree algorithm. The area under the receiver operating characteristic (ROC) curve for the NHHSRA was 0.96, indicating that the NHHSRA has high overall sensitivity and the algorithm was capable of distinguishing between patients needing substance use intervention versus those who do not with 96% accuracy. In the pilot implementation study of another 20 patient admissions, the NHHSRA accurately identified 100% (n = 6) of patients deemed to benefit from substance use interventions by expert addiction psychiatric evaluation. The standard clinical-based referral process identified only 33% (n = 2) and erroneously identified another 4 for referral to substance use intervention that would not have been warranted.Conclusions: The NHHSRA holds promise in its ability to improve objective and timely identification of substance use in a seriously mentally ill inpatient population, helping to facilitate treatment.


Assuntos
Transtornos Mentais , Transtornos Relacionados ao Uso de Substâncias , Adulto , Humanos , New Hampshire , Funções Verossimilhança , Transtornos Relacionados ao Uso de Substâncias/diagnóstico , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/terapia , Encaminhamento e Consulta , Hospitais , Transtornos Mentais/complicações , Transtornos Mentais/diagnóstico , Transtornos Mentais/epidemiologia
13.
Obstet Gynecol ; 142(1): 80-89, 2023 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-37290101

RESUMO

OBJECTIVE: To evaluate the association between exposure to intimate partner violence (IPV) and delivery method in a U.S. obstetric cohort. METHODS: The study population included U.S. women with a history of recent live birth, drawn from the 2009-2018 PRAMS (Pregnancy Risk Assessment Monitoring System) cohort. The primary exposure was self-reported IPV. The primary outcome of interest was method of delivery (vaginal or cesarean). Secondary outcomes included preterm birth, small for gestational age (SGA), and admission to the neonatal intensive care unit (NICU). Bivariate associations between the primary exposure (ie, self-report of IPV vs no self-report of IPV) and each covariate of interest were assessed with weighted quasibinomial logistic regression. Weighted multivariable logistic regression was conducted to evaluate the association between IPV and delivery method controlling for confounders. RESULTS: A total of 130,000 women were included in this secondary analysis of a cross-sectional sample, representing 7,500,000 women nationwide based on PRAMS sampling design. Of these, 0.8% reported abuse in the 12 months before their current pregnancy and 1.3% reported abuse during pregnancy; 1.6% of the study population reported abuse both before and during pregnancy. After adjusting for maternal sociodemographic characteristics, IPV exposure at any time was not significantly associated with cesarean delivery, compared with no IPV exposure (odds ratio [OR] 0.98, 95% CI 0.86-1.11). Of secondary outcomes, 9.4% of women experienced preterm birth and 15.1% had neonates admitted to the NICU. Exposure to IPV was associated with a 21.0% increased risk of preterm birth, compared with women without exposure (OR 1.21, 95% CI 1.05-1.40), and a 33.3% increased risk of NICU admission (OR 1.33, 95% CI 1.17-1.52) after controlling for confounders. There was no difference in the risk of delivering a neonate who was SGA. CONCLUSION: Intimate partner violence was not associated with an increased risk of cesarean delivery. Intimate partner violence before or during pregnancy was associated with increased risk of adverse obstetric outcomes, such as preterm birth and NICU admission, corroborating previous research findings.


Assuntos
Violência por Parceiro Íntimo , Nascimento Prematuro , Gravidez , Humanos , Feminino , Recém-Nascido , Estados Unidos/epidemiologia , Nascimento Prematuro/epidemiologia , Estudos Transversais , Recém-Nascido Pequeno para a Idade Gestacional , Modelos Logísticos , Retardo do Crescimento Fetal
14.
Artigo em Inglês | MEDLINE | ID: mdl-37558698

RESUMO

BACKGROUND: Studies exploring the racial/ethnicity disparity of the impact of heat on hospital admission are notably limited, especially in Texas, a state with a diverse population and consistently ranking among the top ten U.S. states for heat-related deaths per capita from 2018 to 2020. OBJECTIVE: Our objective is to determine the correlation between elevated temperatures and emergency hospital admissions for various causes and age groups across 12 Metropolitan Statistical Areas(MSAs) in Texas. Additionally, we aim to investigate health inequalities in the five largest MSAs in Texas between 2004 and 2013. METHODS: We used MSA-level hospital admission and weather data to estimate the relationship between heat and emergency hospital admissions. We applied a Generalized Additive Model and random effects meta-analysis to calculate MSA-specific associations and overall correlation, repeating the analysis for age groups and specific causes of admission. We also investigated health disparities across racial and ethnic groups and performed a sensitivity analysis. RESULTS: The results showed that a 1 °C increase in temperature was associated with a 0.50% (95% CI [0.38%, 0.63%]) increase in all-cause emergency hospital admissions. Heat's impact on hospital admissions varied among age groups and causes, with children under 6 years showing the highest effect estimate (0.64% (95% CI [0.32%,0.96%])). Statistically significant associations were found for Cardiovascular Diseases (0.27% (95% CI [0.07%,0.47%])), Ischemic Heart Diseases (0.53% (95% CI [0.15%,0.92%])), Pneumonia (0.70% (95% CI [0.25%,1.16%])), and Respiratory Diseases (0.67% (95% CI [0.18%,1.17%])). Health disparities were found among racial and ethnic groups in the five largest MSAs. IMPACT STATEMENT: Studies exploring the impact of heat on hospital admission in Texas are notably limited. Our research provided a comprehensive examination of the connection between heat and emergency hospital admissions throughout Texas. Furthermore, we are the first to examine racial/ethnic disparities, identifying African American and Hispanic groups as disproportionately affected. These insights provide valuable insights for policymakers to allocate resources and implement strategies to mitigate the negative consequences of rising temperatures.

15.
Cancer Metastasis Rev ; 30(2): 161-76, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21267770

RESUMO

Generally, the limits of local tumor control are in part connected with the term "field cancerization" and are known from oral, lung, prostate, or mammary cancer. With the example of breast cancer (BC), the problem of ipsilateral breast tumor recurrences (IBTR) after breast-conserving surgery will be reviewed. Three types of local recurrences are distinguished: true recurrences, new primaries, or residual tumors. Good data for BC allow the description of the time-dependent risk of these three types, relative to the diagnosis of the primary tumor, because the time of initiation and the growth duration of the IBTR can be estimated. Two hypotheses explain the data: first, local recurrences may be initiated years before the diagnosis of a primary tumor (PT) and can then appear as multifocal PT at diagnosis, and second, true local recurrences probably do not metastasize. The generalizability of these hypotheses for other tumors will be discussed.


Assuntos
Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Recidiva Local de Neoplasia/patologia , Progressão da Doença , Intervalo Livre de Doença , Feminino , Humanos , Mastectomia/métodos , Metástase Neoplásica , Recidiva Local de Neoplasia/classificação , Prognóstico
16.
Front Med Technol ; 4: 926667, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35782577

RESUMO

Background: Many machine learning heuristics integrate well with Electronic Medical Record (EMR) systems yet often fail to surpass traditional statistical models for biomedical applications. Objective: We sought to compare predictive performances of 12 machine learning and traditional statistical techniques to predict the occurrence of Hospital Acquired Pressure Injuries (HAPI). Methods: EMR information was collected from 57,227 hospitalizations acquired from Dartmouth Hitchcock Medical Center (April 2011 to December 2016). Twelve classification algorithms, chosen based upon classic regression and recent machine learning techniques, were trained to predict HAPI incidence and performance was assessed using the Area Under the Receiver Operating Characteristic Curve (AUC). Results: Logistic regression achieved a performance (AUC = 0.91 ± 0.034) comparable to the other machine learning approaches. We report discordance between machine learning derived predictors compared to the traditional statistical model. We visually assessed important patient-specific factors through Shapley Additive Explanations. Conclusions: Machine learning models will continue to inform clinical decision-making processes but should be compared to traditional modeling approaches to ensure proper utilization. Disagreements between important predictors found by traditional and machine learning modeling approaches can potentially confuse clinicians and need to be reconciled. These developments represent important steps forward in developing real-time predictive models that can be integrated into EMR systems to reduce unnecessary harm.

17.
Curr Protoc ; 2(10): e556, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36200800

RESUMO

Social Determinants of Health (SDOH) consider social, political, and economic factors that contribute to health disparities in patients and populations. The most common health-related SDOH exposures are food and housing insecurity, financial instability, transportation needs, low levels of education, and psychosocial stress. These domains describe risks that can impact health outcomes more than health care. Epidemiologic and translational research demonstrates that SDOH factors represent exposures that predict harm and impact the health of individuals. International and national guidelines urge health professionals to address SDOH in clinical practice and public health. The further implementation of these recommendations into basic and translational research, however, is lagging. Herein, we consider a precision health framework to describe how SDOH contributes to the exposome and exacerbates physiologic pathways that lead to chronic disease. SDOH factors are associated with various forms of stressors that impact physiological processes through epigenetic, inflammatory, and redox regulation. Many SDOH exposures may add to or potentiate the pathologic effects of additional environmental exposures. This overview aims to inform basic life science and translational researchers about SDOH exposures that can confound associations between classic biomedical determinants of disease and health outcomes. To advance the study of toxicology through either qualitative or quantitative assessment of exposures to chemical and biological substances, a more complete environmental evaluation should include SDOH exposures. We discuss common approaches to measure SDOH factors at individual and population levels and review the associations between SDOH risk factors and physiologic mechanisms that influence chronic disease. We provide clinical and policy-based motivation to encourage researchers to consider the impact of SDOH exposures on study results and data interpretation. With valid measures of SDOH factors incorporated into study design and analyses, future toxicological research may contribute to an evidence base that can better inform prevention and treatment options, to improve equitable clinical care and population health. © 2022 Wiley Periodicals LLC.


Assuntos
Biologia , Determinantes Sociais da Saúde , Doença Crônica , Escolaridade , Humanos , Fatores de Risco
18.
Cancer Metastasis Rev ; 29(4): 737-50, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20878451

RESUMO

Distant metastases (MET) are for most solid cancers decisive life-threatening events. Data about MET-free survival and survival after MET show a strong dependency on the kind of cancer and the prognostic features. Nonetheless, within biological subgroups, the MET process is very homogenous. Therefore, the growth rate can be estimated from initiation of MET to MET diagnosis and to time of death. Based on the known volume doubling time of breast cancer, the time of the first possible dissemination can also be estimated. Important consequences of these MET-initiation estimates are the hypotheses that almost all MET are initiated before removal of the primary tumor and that MET do not metastasize in a clinically relevant magnitude. Although breast cancer data were primarily used to form these hypotheses, the discussed MET process can be generalized to all solid cancers. The impact of these hypotheses on diagnostic, curative and palliative treatment, aftercare, and especially on clinical research would be important.


Assuntos
Metástase Neoplásica/patologia , Neoplasias/patologia , Neoplasias da Mama/patologia , Progressão da Doença , Feminino , Humanos
19.
BMC Public Health ; 11: 579, 2011 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-21774793

RESUMO

BACKGROUND: To identify factors which determine high life satisfaction (LS) and to analyse the prognostic influence of LS on mortality. METHODS: Data collection was conducted on 2,675 participants, age 25-74 years, as part of the MONICA Augsburg Project 1994-95. Multivariate logistic regression analyses were used to determine factors associated with high LS (measured with one item, 6-level Likert scale, where "high" = very satisfied/most of the time very satisfied with ones personal life). After 12 years mean follow-up, a total of 245 deaths occurred. We calculated age- and sex-adjusted incident mortality rates per 10,000. Hazard ratios (HRs) were estimated from Cox proportional hazards models. RESULTS: Independent determinants of LS were income, health-perception, and social support, as well as somatisation, anger or depressive symptoms (all p < 0.05). Participants with higher LS (n = 721, 27%) benefited the most with respect to absolute mortality risk reduction (higher LS = 67; mid = 98; low = 140 per 10,000). The sex-stratified analyses indicated an independent association of higher LS and survival for men (HR 0.55; 95% CI 0.37 - 0.81) but not for women. CONCLUSIONS: Baseline assessment demonstrated that psychological, social and life-style factors, but not somatic co-morbidities, were relevant determinants of LS. Moreover, the analysis showed that men with higher LS have a substantial long-term survival benefit. The observed association between LS and mortality may be attributed to common underlying causes such as social network integration and/or self-rated health.


Assuntos
Mortalidade , Satisfação Pessoal , Adulto , Idoso , Estudos de Coortes , Feminino , Alemanha/epidemiologia , Inquéritos Epidemiológicos , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
20.
BMC Med Res Methodol ; 10: 36, 2010 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-20433701

RESUMO

BACKGROUND: Although aging is accompanied by diminished functioning, many elderly individuals preserve a sense of well-being. While the concept of "successful aging" has been popular for many decades, little is known about its psycho-physiologic and endocrine underpinnings. KORA-Age is a population-based, longitudinal study designed to determine the prevalence of successfully aged men and women between 65 and 94 years old in the MONICA/KORA Augsburg cohort of randomly selected inhabitants. Specifically, we aim to identify predictors of successful aging and to elucidate bio-psychosocial mechanisms that maintain mental health and successful adaptation despite adverse experiences of life and aging. METHODS/DESIGN: Components of successful aging were assessed in a telephone survey of 4,127 participants (2008-2009) enrolled in the MONICA/KORA cohort, on average, 13 years earlier. Psychosocial, somatic and behavioural predictors are used to determine factors that contribute to successful aging. An age-stratified random sub-sample (n = 1,079) participated in a personal interview where further psychological mechanisms that may underlie successful adaptation (resilience, social support, attachment) were examined. The interactions among neuroendocrine systems in the aging process are investigated by studying the cortisol/dehydroepiandrosterone-sulfate ratio, the level of insulin-like growth factor I, and oxytocin. DISCUSSION: Longitudinal determinants of successful aging can be assessed based on a follow-up of an average of 13 years. A comprehensive analysis of biological as well as physio-psychological information provides a unique opportunity to investigate relevant outcomes such as resilience and frailty in the elderly population.


Assuntos
Envelhecimento/psicologia , Avaliação Geriátrica , Saúde Mental , Atividades Cotidianas , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/fisiologia , Fenômenos Fisiológicos Cardiovasculares , Estudos de Coortes , Feminino , Nível de Saúde , Hormônios/fisiologia , Humanos , Masculino , Qualidade de Vida , Apoio Social
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