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1.
Artículo en Inglés | MEDLINE | ID: mdl-38052484

RESUMEN

Aging can be conceptualized as the progressive disequilibrium between stochastic damage accumulation and resilience mechanisms that continuously repair that damage, which eventually cause the development of chronic disease, frailty, and death. The immune system is at the forefront of these resilience mechanisms. Indeed, aging is associated with persistent activation of the immune system, witnessed by a high circulating level of inflammatory markers and activation of immune cells in the circulation and in tissue, a condition called "inflammaging." Like aging, inflammaging is associated with increased risk of many age-related pathologies and disabilities, as well as frailty and death. Herein we discuss recent advances in the understanding of the mechanisms leading to inflammaging and the intrinsic dysregulation of the immune function that occurs with aging. We focus on the underlying mechanisms of chronic inflammation, in particular the role of NF-κB and recent studies targeting proinflammatory mediators. We further explore the dysregulation of the immune response with age and immunosenescence as an important mechanistic immune response to acute stressors. We examine the role of the gastrointestinal microbiome, age-related dysbiosis, and the integrated stress response in modulating the inflammatory "response" to damage accumulation and stress. We conclude by focusing on the seminal question of whether reducing inflammation is useful and the results of related clinical trials. In summary, we propose that inflammation may be viewed both as a clinical biomarker of the failure of resilience mechanisms and as a causal factor in the rising burden of disease and disabilities with aging. The fact that inflammation can be reduced through nonpharmacological interventions such as diet and exercise suggests that a life course approach based on education may be a successful strategy to increase the health span with few adverse consequences.

2.
J Clin Transl Sci ; 7(1): e214, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37900350

RESUMEN

Knowledge graphs have become a common approach for knowledge representation. Yet, the application of graph methodology is elusive due to the sheer number and complexity of knowledge sources. In addition, semantic incompatibilities hinder efforts to harmonize and integrate across these diverse sources. As part of The Biomedical Translator Consortium, we have developed a knowledge graph-based question-answering system designed to augment human reasoning and accelerate translational scientific discovery: the Translator system. We have applied the Translator system to answer biomedical questions in the context of a broad array of diseases and syndromes, including Fanconi anemia, primary ciliary dyskinesia, multiple sclerosis, and others. A variety of collaborative approaches have been used to research and develop the Translator system. One recent approach involved the establishment of a monthly "Question-of-the-Month (QotM) Challenge" series. Herein, we describe the structure of the QotM Challenge; the six challenges that have been conducted to date on drug-induced liver injury, cannabidiol toxicity, coronavirus infection, diabetes, psoriatic arthritis, and ATP1A3-related phenotypes; the scientific insights that have been gleaned during the challenges; and the technical issues that were identified over the course of the challenges and that can now be addressed to foster further development of the prototype Translator system. We close with a discussion on Large Language Models such as ChatGPT and highlight differences between those models and the Translator system.

3.
Sci Rep ; 13(1): 12911, 2023 08 09.
Artículo en Inglés | MEDLINE | ID: mdl-37558924

RESUMEN

Immunity-related GTPase family M (IRGM), located on human chromosome 5q33.1, encodes a protein that promotes autophagy and suppresses the innate immune response. The minor allele of rs13361189 (-4299T>C), a single nucleotide polymorphism in the IRGM promoter, has been associated with several diseases, including Crohn's disease and tuberculosis. Although patterns of linkage disequilibrium and minor allele frequency for this polymorphism differ dramatically between subjects of European and African descent, studies of rs13361189 have predominantly been conducted in Europeans and the mechanism of association is poorly understood. We recruited a cohort of 68 individuals (30 White, 34 African American, 4 other race) with varying rs13361189 genotypes and assessed a panel of immune response measures including whole blood cytokine induction following ex vivo stimulation with Toll-like Receptor ligands. Minor allele carriers were found to have increased serum immunoglobulin M, C-reactive protein, and circulating CD8+ T cells. No differences in whole blood cytokines were observed between minor allele carriers and non-carriers in the overall study population; however, minor allele status was associated with increased induction of a subset of cytokines among African American subjects, and decreased induction among White subjects. These findings underline the importance of broad racial inclusion in genetic studies of immunity.


Asunto(s)
Citocinas , Predisposición Genética a la Enfermedad , Humanos , Alelos , Citocinas/genética , Linfocitos T CD8-positivos , Estudios de Casos y Controles , Proteínas de Unión al GTP/genética , Polimorfismo de Nucleótido Simple
4.
Diabetes Care ; 46(5): 929-937, 2023 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-36383734

RESUMEN

OBJECTIVE: Environmental exposures may have greater predictive power for type 2 diabetes than polygenic scores (PGS). Studies examining environmental risk factors, however, have included only individuals with European ancestry, limiting the applicability of results. We conducted an exposome-wide association study in the multiancestry Personalized Environment and Genes Study to assess the effects of environmental factors on type 2 diabetes. RESEARCH DESIGN AND METHODS: Using logistic regression for single-exposure analysis, we identified exposures associated with type 2 diabetes, adjusting for age, BMI, household income, and self-reported sex and race. To compare cumulative genetic and environmental effects, we computed an overall clinical score (OCS) as a weighted sum of BMI and prediabetes, hypertension, and high cholesterol status and a polyexposure score (PXS) as a weighted sum of 13 environmental variables. Using UK Biobank data, we developed a multiancestry PGS and calculated it for participants. RESULTS: We found 76 significant associations with type 2 diabetes, including novel associations of asbestos and coal dust exposure. OCS, PXS, and PGS were significantly associated with type 2 diabetes. PXS had moderate power to determine associations, with larger effect size and greater power and reclassification improvement than PGS. For all scores, the results differed by race. CONCLUSIONS: Our findings in a multiancestry cohort elucidate how type 2 diabetes odds can be attributed to clinical, genetic, and environmental factors and emphasize the need for exposome data in disease-risk association studies. Race-based differences in predictive scores highlight the need for genetic and exposome-wide studies in diverse populations.


Asunto(s)
Diabetes Mellitus Tipo 2 , Hipertensión , Humanos , Diabetes Mellitus Tipo 2/epidemiología , Diabetes Mellitus Tipo 2/genética , Hipertensión/complicaciones , Exposición a Riesgos Ambientales , Herencia Multifactorial/genética , Encuestas y Cuestionarios , Estudio de Asociación del Genoma Completo , Factores de Riesgo
5.
Environ Int ; 171: 107687, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36527873

RESUMEN

BACKGROUND: Concentrated animal feeding operations (CAFOs) are a source of environmental pollution and have been associated with a variety of health outcomes. Immune-mediated diseases (IMD) are characterized by dysregulation of the normal immune response and, while they may be affected by gene and environmental factors, their association with living in proximity to a CAFO is unknown. OBJECTIVES: We explored gene, environment, and gene-environment (GxE) relationships between IMD, CAFOs, and single nucleotide polymorphisms (SNPs) of prototypical xenobiotic response genes AHR, ARNT, and AHRR and prototypical immune response gene PTPN22. METHODS: The exposure analysis cohort consisted of 6,464 participants who completed the Personalized Environment and Genes Study Health and Exposure Survey and a subset of 1,541 participants who were genotyped. We assessed the association between participants' residential proximity to a CAFO in gene, environment, and GxE models. We recombined individual associations in a transethnic model using METAL meta-analysis. RESULTS: In White participants, ARNT SNP rs11204735 was associated with autoimmune diseases and rheumatoid arthritis (RA), and ARNT SNP rs1889740 was associated with RA. In a transethnic genetic analysis, ARNT SNPs rs11204735 and rs1889740 and PTPN22 SNP rs2476601 were associated with autoimmune diseases and RA. In participants living closer than one mile to a CAFO, the log-distance to a CAFO was associated with autoimmune diseases and RA. In a GxE interaction model, White participants with ARNT SNPs rs11204735 and rs1889740 living closer than eight miles to a CAFO had increased odds of RA and autoimmune diseases, respectively. The transethnic model revealed similar GxE interactions. CONCLUSIONS: Our results suggest increased risk of autoimmune diseases and RA in those living in proximity to a CAFO and a potential role of the AHR-ARNT pathway in conferring risk. We also report the first association of ARNT SNPs rs11204735 and rs1889740 with RA. Our findings, if confirmed, could allow for novel genetically-targeted or other preventive approaches for certain IMD.


Asunto(s)
Artritis Reumatoide , Enfermedades Autoinmunes , Animales , Porcinos , Enfermedades Autoinmunes/genética , Genotipo , Polimorfismo de Nucleótido Simple , Predisposición Genética a la Enfermedad
6.
J Expo Sci Environ Epidemiol ; 33(3): 474-481, 2023 05.
Artículo en Inglés | MEDLINE | ID: mdl-36460922

RESUMEN

BACKGROUND: Autoimmune (AI) diseases appear to be a product of genetic predisposition and environmental triggers. Disruption of the skin barrier causes exacerbation of psoriasis/eczema. Oxidative stress is a mechanistic pathway for pathogenesis of the disease and is also a primary mechanism for the detrimental effects of air pollution. METHODS: We evaluated the association between autoimmune skin diseases (psoriasis or eczema) and air pollutant mixtures in 9060 subjects from the Personalized Environment and Genes Study (PEGS) cohort. Pollutant exposure data on six criteria air pollutants are publicly available from the Center for Air, Climate, and Energy Solutions and the Atmospheric Composition Analysis Group. For increased spatial resolution, we included spatially cumulative exposure to volatile organic compounds from sites in the United States Environmental Protection Agency Toxic Release Inventory and the density of major roads within a 5 km radius of a participant's address from the United States Geological Survey. We applied logistic regression with quantile g-computation, adjusting for age, sex, diagnosis with an autoimmune disease in family or self, and smoking history to evaluate the relationship between self-reported diagnosis of an AI skin condition and air pollution mixtures. RESULTS: Only one air pollution variable, sulfate, was significant individually (OR = 1.06, p = 3.99E-2); however, the conditional odds ratio for the combined mixture components of PM2.5 (black carbon, sulfate, sea salt, and soil), CO, SO2, benzene, toluene, and ethylbenzene is 1.10 (p-value = 5.4E-3). SIGNIFICANCE: While the etiology of autoimmune skin disorders is not clear, this study provides evidence that air pollutants are associated with an increased prevalence of these disorders. The results provide further evidence of potential health impacts of air pollution exposures on life-altering diseases. SIGNIFICANCE AND IMPACT STATEMENT: The impact of air pollution on non-pulmonary and cardiovascular diseases is understudied and under-reported. We find that air pollution significantly increased the odds of psoriasis or eczema in our cohort and the magnitude is comparable to the risk associated with smoking exposure. Autoimmune diseases like psoriasis and eczema are likely impacted by air pollution, particularly complex mixtures and our study underscores the importance of quantifying air pollution-associated risks in autoimmune disease.


Asunto(s)
Contaminantes Atmosféricos , Contaminación del Aire , Eccema , Psoriasis , Humanos , Estados Unidos/epidemiología , Contaminantes Atmosféricos/efectos adversos , Contaminantes Atmosféricos/análisis , Material Particulado/efectos adversos , Material Particulado/análisis , Exposición a Riesgos Ambientales/efectos adversos , Exposición a Riesgos Ambientales/análisis , Contaminación del Aire/efectos adversos , Contaminación del Aire/análisis , Eccema/inducido químicamente , Eccema/epidemiología , Psoriasis/inducido químicamente , Psoriasis/epidemiología , Psoriasis/genética
7.
Environ Res ; 212(Pt D): 113463, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35605674

RESUMEN

While multiple factors are associated with cardiovascular disease (CVD), many environmental exposures that may contribute to CVD have not been examined. To understand environmental effects on cardiovascular health, we performed an exposome-wide association study (ExWAS), a hypothesis-free approach, using survey data on endogenous and exogenous exposures at home and work and data from health and medical histories from the North Carolina-based Personalized Environment and Genes Study (PEGS) (n = 5015). We performed ExWAS analyses separately on six cardiovascular outcomes (cardiac arrhythmia, congestive heart failure, coronary artery disease, heart attack, stroke, and a combined atherogenic-related outcome comprising angina, angioplasty, atherosclerosis, coronary artery disease, heart attack, and stroke) using logistic regression and a false discovery rate of 5%. For each CVD outcome, we tested 502 single exposures and built multi-exposure models using the deletion-substitution-addition (DSA) algorithm. To evaluate complex nonlinear relationships, we employed the knockoff boosted tree (KOBT) algorithm. We adjusted all analyses for age, sex, race, BMI, and annual household income. ExWAS analyses revealed novel associations that include blood type A (Rh-) with heart attack (OR[95%CI] = 8.2[2.2:29.7]); paint exposures with stroke (paint related chemicals: 6.1[2.2:16.0], acrylic paint: 8.1[2.6:22.9], primer: 6.7[2.2:18.6]); biohazardous materials exposure with arrhythmia (1.8[1.5:2.3]); and higher paternal education level with reduced risk of multiple CVD outcomes (stroke, heart attack, coronary artery disease, and combined atherogenic outcome). In multi-exposure models, trouble sleeping and smoking remained important risk factors. KOBT identified significant nonlinear effects of sleep disorder, regular intake of grapefruit, and a family history of blood clotting problems for multiple CVD outcomes (combined atherogenic outcome, congestive heart failure, and coronary artery disease). In conclusion, using statistics and machine learning, these findings identify novel potential risk factors for CVD, enable hypothesis generation, provide insights into the complex relationships between risk factors and CVD, and highlight the importance of considering multiple exposures when examining CVD outcomes.


Asunto(s)
Enfermedades Cardiovasculares , Enfermedad de la Arteria Coronaria , Exposoma , Insuficiencia Cardíaca , Infarto del Miocardio , Accidente Cerebrovascular , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/etiología , Humanos , Factores de Riesgo , Accidente Cerebrovascular/epidemiología , Encuestas y Cuestionarios
8.
Gait Posture ; 91: 312-317, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34800924

RESUMEN

BACKGROUND: Alkaptonuria is a rare genetic disease that leads to structural joint damage and impaired movement function. Previous research indicates that alkaptonuria affects gait, however the detailed mechanisms are unknown. RESEARCH QUESTION: What are the joint-specific gait mechanisms which contribute to impaired gait in alkaptonuria patients? METHODS: The gait of 36 alkaptonuria patients were compared to those of 21 unimpaired controls. The AKU patients were split into three age groups (young 16-29 years, n = 9, middle 30-49 years, n = 16 and old 50 + years, n = 11), and the kinematic and kinetic gait profiles were compared to speed-matched controls using a spm1d two-sample t-test. RESULTS: The young AKU group showed significant differences in the sagittal plane of the knee joint compared to speed-matched controls. The middle group showed deviations in the knee and hip joints. The old group showed significant differences in multiple joints and planes and exhibited gait mechanisms which may be compensation strategies. SIGNIFICANCE: This study is the first to identify and describe joint-specific mechanisms during gait in alkaptonuria patients. Gait deviations were evident even in young AKU patients, including a 16-year-old, much earlier than previously thought. The knee joint is an important focus of future research and potential interventions as deviations were found across all three AKU age groups.


Asunto(s)
Alcaptonuria , Adolescente , Adulto , Alcaptonuria/complicaciones , Fenómenos Biomecánicos , Marcha , Articulación de la Cadera , Humanos , Articulación de la Rodilla , Adulto Joven
9.
J Clin Invest ; 131(22)2021 11 15.
Artículo en Inglés | MEDLINE | ID: mdl-34591792

RESUMEN

Epoxyeicosatrienoic acids (EETs) have potent antiinflammatory properties. Hydrolysis of EETs by soluble epoxide hydrolase/ epoxide hydrolase 2 (sEH/EPHX2) to less active diols attenuates their antiinflammatory effects. Macrophage activation is critical to many inflammatory responses; however, the role of EETs and sEH in regulating macrophage function remains unknown. Lung bacterial clearance of Streptococcus pneumoniae was impaired in Ephx2-deficient (Ephx2-/-) mice and in mice treated with an sEH inhibitor. The EET receptor antagonist EEZE restored lung clearance of S. pneumoniae in Ephx2-/- mice. Ephx2-/- mice had normal lung Il1b, Il6, and Tnfa expression levels and macrophage recruitment to the lungs during S. pneumoniae infection; however, Ephx2 disruption attenuated proinflammatory cytokine induction, Tlr2 and Pgylrp1 receptor upregulation, and Ras-related C3 botulinum toxin substrates 1 and 2 (Rac1/2) and cell division control protein 42 homolog (Cdc42) activation in PGN-stimulated macrophages. Consistent with these observations, Ephx2-/- macrophages displayed reduced phagocytosis of S. pneumoniae in vivo and in vitro. Heterologous overexpression of TLR2 and peptidoglycan recognition protein 1 (PGLYRP1) in Ephx2-/- macrophages restored macrophage activation and phagocytosis. Human macrophage function was similarly regulated by EETs. Together, these results demonstrate that EETs reduced macrophage activation and phagocytosis of S. pneumoniae through the downregulation of TLR2 and PGLYRP1 expression. Defining the role of EETs and sEH in macrophage function may lead to the development of new therapeutic approaches for bacterial diseases.


Asunto(s)
Eicosanoides/fisiología , Epóxido Hidrolasas/fisiología , Pulmón/inmunología , Macrófagos/inmunología , Fagocitosis/fisiología , Streptococcus pneumoniae/inmunología , Animales , Proteínas Portadoras/fisiología , Humanos , Masculino , Ratones , Ratones Endogámicos C57BL , Moléculas de Patrón Molecular Asociado a Patógenos/farmacología , Receptor Toll-Like 2/fisiología
10.
Internet Interv ; 26: 100449, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34504779

RESUMEN

PURPOSE: Evaluate the feasibility, acceptability and potential efficacy of a form of online therapy for clinical depression and/or anxiety in people living with advanced cancer. METHODS: A single-arm open trial of a six-lesson clinician-supervised, internet-delivered cognitive behavioural therapy (iCBT) transdiagnostic intervention (iCanADAPT Advanced) was undertaken. Qualitative (semi-structured telephone interview conducted at 3-months) and quantitative data (questionnaires collected at pre-, post-, and 3-month follow-up) were analysed. RESULTS: 27 participants partook (26 women, 56% breast cancer, mean age 56yo; average number of mental health diagnoses 1.8, with majority (81%) meeting criteria for generalised anxiety disorder). Feasibility - Unanticipated numbers (48%) of participants had physical health deterioration (cancer progression or death). iCBT had high adherence overall (completion rates: 37% did 6 lessons; 70% did 4 lessons) but adherence was higher for those whose cancer remained stable (completion rates: 43% did 6 lessons; 85% did 4 lessons). Acceptability - the intervention was acceptable to the majority of participants, with high treatment satisfaction. Advisory data was achieved regarding future versions. Potential efficacy - regardless of physical health status, participants who completed the iCBT showed a significant decrease over time in anxiety and depression symptoms. CONCLUSIONS: Online therapies may be useful in assisting those living with advanced cancer dealing with clinical depression and anxiety disorders. The specific modality of clinician supervised iCBT has significant potential to be a suitable modality of online therapy.

11.
Brain Inj ; 35(12-13): 1496-1509, 2021 11 10.
Artículo en Inglés | MEDLINE | ID: mdl-34495773

RESUMEN

Purpose:To identify the tests and tools used to evaluate vestibulo-ocular reflex (VOR) function after traumatic brain injury (TBI) in all age groups and across TBI severity.Methods: An electronic search was conducted to include relevant peer-reviewed literature published up to November 2019. Studies included those done with humans, of all ages, and had assessments of oculomotor and/or vestibulo-ocular function in TBI.Results: Of the articles selected (N = 48), 50% were published in 2018/2019. A majority targeted mild TBI, with equal focus on non-computerized versus computerized measures of VOR. Computerized assessment tools used were videonystagmography, dynamic visual acuity/gaze stability, rotary chair, and caloric irrigation. Non-computerized tests included the head thrust, dynamic visual acuity, gaze stability, head shaking nystagmus, rotary chair tests and the vestibular/oculomotor screening tool. High variability in administration protocols were identified. Namely: testing environment, distances/positioning/equipment used, active/passive state, procedures, rotation frequencies, and variables observed.Conclusions: There is a rapid growth of literature incorporating VOR tests in mild TBI but moderate and severe TBI continues to be under-represented. Determining how to pair a clinical test with a computerized tool and developing standardized protocols when administering tests will help in developing an optimal battery assessing the VOR in TBI.


Asunto(s)
Conmoción Encefálica , Lesiones Traumáticas del Encéfalo , Lesiones Traumáticas del Encéfalo/complicaciones , Lesiones Traumáticas del Encéfalo/diagnóstico , Movimientos Oculares , Humanos , Reflejo Vestibuloocular , Agudeza Visual
12.
Genet Med ; 23(12): 2281-2288, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34326490

RESUMEN

PURPOSE: Proposals to return medically actionable secondary genetic findings (SFs) in the clinical and research settings have generated controversy regarding whether to solicit individuals' preferences about their "right not to know" genetic information. This study contributes to the debate by surveying research participants who have actively decided whether to accept or refuse SFs. METHODS: Participants were drawn from a large National Institutes of Health (NIH) environmental health study. Participants who had accepted SFs (n = 148) or refused SFs (n = 83) were given more detailed information about the types of SFs researchers could return and were given an opportunity to revise their original decision. RESULTS: Forty-one of 83 initial refusers (49.4%) opted to receive SFs following the informational intervention. Nearly 75% of these "reversible refusers" thought they had originally accepted SFs. The 50.6% of initial refusers who continued to refuse ("persistent refusers") demonstrated high levels of understanding of which SFs would be returned postintervention. The most prominent reason for refusing was concern about becoming worried or sad (43.8%). CONCLUSION: This study demonstrates the need for a more robust informed consent process when soliciting research participants' preferences about receiving SFs. We also suggest that our data support implementing a default practice of returning SFs without actively soliciting preferences.


Asunto(s)
Motivación , Humanos , Estados Unidos
13.
PLoS Genet ; 17(1): e1009302, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33444353

RESUMEN

Human skin is continuously exposed to environmental DNA damage leading to the accumulation of somatic mutations over the lifetime of an individual. Mutagenesis in human skin cells can be also caused by endogenous DNA damage and by DNA replication errors. The contributions of these processes to the somatic mutation load in the skin of healthy humans has so far not been accurately assessed because the low numbers of mutations from current sequencing methodologies preclude the distinction between sequencing errors and true somatic genome changes. In this work, we sequenced genomes of single cell-derived clonal lineages obtained from primary skin cells of a large cohort of healthy individuals across a wide range of ages. We report here the range of mutation load and a comprehensive view of the various somatic genome changes that accumulate in skin cells. We demonstrate that UV-induced base substitutions, insertions and deletions are prominent even in sun-shielded skin. In addition, we detect accumulation of mutations due to spontaneous deamination of methylated cytosines as well as insertions and deletions characteristic of DNA replication errors in these cells. The endogenously induced somatic mutations and indels also demonstrate a linear increase with age, while UV-induced mutation load is age-independent. Finally, we show that DNA replication stalling at common fragile sites are potent sources of gross chromosomal rearrangements in human cells. Thus, somatic mutations in skin of healthy individuals reflect the interplay of environmental and endogenous factors in facilitating genome instability and carcinogenesis.


Asunto(s)
Daño del ADN/efectos de la radiación , Metilación de ADN/genética , Replicación del ADN/genética , Piel/efectos de la radiación , Metilación de ADN/efectos de la radiación , Reparación del ADN/efectos de la radiación , Replicación del ADN/efectos de la radiación , Fibroblastos/efectos de la radiación , Genoma Humano/genética , Genoma Humano/efectos de la radiación , Inestabilidad Genómica/efectos de la radiación , Genómica/métodos , Humanos , Mutación INDEL/efectos de la radiación , Melanocitos/efectos de la radiación , Mutagénesis/genética , Mutagénesis/efectos de la radiación , Piel/metabolismo , Rayos Ultravioleta/efectos adversos
14.
Support Care Cancer ; 29(6): 3235-3244, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33095356

RESUMEN

AIMS: Translation of evidence-based psycho-oncology interventions into routine care can significantly improve patient outcomes, yet effective implementation remains challenging due to numerous real-world barriers. A key factor that may influence implementation is organisational readiness for change. This mixed method study sought to identify factors associated with organisational readiness for implementing the Australian clinical pathway for the screening, assessment and management of anxiety and depression in adult cancer patients (ADAPT CP). METHODS: We collected data from multidisciplinary staff across six Australian cancer services who were preparing to implement the ADAPT CP. Services were categorised as having 'high' versus 'mid-range' organisational readiness based on a median split on the Organizational Readiness for Implementing Change (ORIC) questionnaire (score range = 12-60). Qualitative data from the semi-structured interviews based on the Promoting Action Research in Health Services (PARiHS) framework were analysed thematically and compared for services with high- versus mid-range organisational readiness. RESULTS: Three services with high- (mean ORIC range, 52.25-56.88), and three with mid-range (range, 38.75-46.39) organisational readiness scores were identified. Staff at services reporting higher readiness described a more collaborative and proactive service culture, strong communication processes and greater role flexibility. They also reported greater confidence in overcoming anticipated barriers and clearer strategies for addressing issues. CONCLUSIONS: Levels of organisational readiness were related to distinct qualitative themes. Targeting these issues in services where readiness is mid-range or low prior to full-scale roll-out may improve staff levels of confidence and efficacy in implementing psycho-oncology-focused interventions.


Asunto(s)
Trastornos de Ansiedad/diagnóstico , Depresión/diagnóstico , Detección Precoz del Cáncer/métodos , Neoplasias/complicaciones , Psicooncología/métodos , Adolescente , Adulto , Anciano , Australia , Humanos , Persona de Mediana Edad , Medición de Riesgo , Adulto Joven
15.
Sci Adv ; 6(47)2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-33219026

RESUMEN

Induced pluripotent stem cells (iPSCs) can be derived from differentiated cells, enabling the generation of personalized disease models by differentiating patient-derived iPSCs into disease-relevant cell lines. While genetic variability between different iPSC lines affects differentiation potential, how this variability in somatic cells affects pluripotent potential is less understood. We generated and compared transcriptomic data from 72 dermal fibroblast-iPSC pairs with consistent variation in reprogramming efficiency. By considering equal numbers of samples from self-reported African Americans and White Americans, we identified both ancestry-dependent and ancestry-independent transcripts associated with reprogramming efficiency, suggesting that transcriptomic heterogeneity can substantially affect reprogramming. Moreover, reprogramming efficiency-associated genes are involved in diverse dynamic biological processes, including cancer and wound healing, and are predictive of 5-year breast cancer survival in an independent cohort. Candidate genes may provide insight into mechanisms of ancestry-dependent regulation of cell fate transitions and motivate additional studies for improvement of reprogramming.


Asunto(s)
Fenómenos Biológicos , Células Madre Pluripotentes Inducidas , Diferenciación Celular/genética , Línea Celular , Humanos , Células Madre Pluripotentes Inducidas/metabolismo , Transcriptoma
16.
Environ Int ; 144: 106031, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32798798

RESUMEN

BACKGROUND: Human exposures to bisphenol A (BPA) are widespread. The current study addresses uncertainties regarding human pharmacokinetics of BPA following dermal exposure. OBJECTIVE: To examine the absorption, distribution, metabolism and excretion of BPA in humans following dermal administration. METHODS: We dermally administered deuterated BPA (d6-BPA) to 10 subjects (6 men and 4 women) at a dose of 100 µg/kg over a 12-hour period and conducted blood and urine analysis from the beginning of dosing through a three- or six-day period. We present time-course serum and urine concentrations of total and unconjugated ("free") d6-BPA and used this information to calculate terminal half-life and area under the curve. RESULTS AND CONCLUSIONS: Detectable serum levels of total d6-BPA were observed at 1.4 h after the start of dosing, and a maximum serum concentration (Cmax) of 3.26 nM was observed. Free d6-BPA was detectable in serum 2.8 h after start of dermal administration, with Cmax of 0.272 nM. Beginning at approximately seven hours and continuing to 12 h (which corresponds to cessation of exposure), the concentration of free and total serum d6-BPA plateaued. The terminal half-lives of total d6-BPA and free d6-BPA in the body were 21.4 ± 9.81 h and 17.6 ± 7.69 h, respectively. Elimination from the body was rate-limited by kinetics in the dermal compartment. Free d6-BPA was a greater percentage of the area under the curve of total serum BPA (8.81%) compared to the 0.56% observed in our previously published oral study. Recovery of total d6-BPA in urine was <2% of the applied dose after six days. Analysis of the area under the curve for dermal and oral administration revealed that 2.2% of the dermal dose became systemically available. These data are in line with prior studies indicating how pharmacokinetics of BPA differ following oral and dermal exposures. Dermal exposure resulted in a longer apparent half-life and higher free:total d6-BPA ratio compared to oral.


Asunto(s)
Compuestos de Bencidrilo , Fenoles , Administración Cutánea , Administración Oral , Femenino , Semivida , Humanos , Masculino
17.
Immun Ageing ; 17: 23, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32849908

RESUMEN

A central clinical question as the world deals with the COVID-19 pandemic is what the long-term sequelae for the millions of individuals will be who recover from the hyperinflammatory state characterizing COVID-19 and in particular for the hundreds of thousands who are ill enough to need hospitalization and in particular ICU care. Even when the pandemic is finally controlled, will COVID-19 survivors face exaggerated internal inflammatory processes, worsening co-morbidities, and increased susceptibility to age-related diseases? Clues for what may happen in post-COVID-19 patients can be elicited from those who recovered from other conditions that lead to similar hyperinflammatory states such as Severe Acute Respiratory Syndrome (SARS), acute respiratory disease syndrome (ARDS), cytokine storm syndrome, and post-ICU syndrome. The short-and long-term sequalae following recovery from each of these conditions suggests that these syndromes lead to an accelerated state of chronic subclinical systemic inflammation often seen in aging (termed inflammaging) resulting in increased and worsening age-related conditions including frailty even in younger individuals.

18.
Artículo en Inglés | MEDLINE | ID: mdl-32708093

RESUMEN

Environmental exposures have profound effects on health and disease. While public repositories exist for a variety of exposures data, these are generally difficult to access, navigate, and interpret. We describe the research, development, and application of three open application programming interfaces (APIs) that support access to usable, nationwide, exposures data from three public repositories: airborne pollutant estimates from the US Environmental Protection Agency; roadway data from the US Department of Transportation; and socio-environmental exposures from the US Census Bureau's American Community Survey. Three open APIs were successfully developed, deployed, and tested using random latitude/longitude values and time periods as input parameters. After confirming the accuracy of the data, we used the APIs to extract exposures data on 2550 participants from a cohort within the Environmental Polymorphisms Registry (EPR) at the National Institute of Environmental Health Sciences, and we successfully linked the exposure estimates with participant-level data derived from the EPR. We then conducted an exploratory, proof-of-concept analysis of the integrated data for a subset of participants with self-reported asthma and largely replicated our prior findings on the impact of select exposures and demographic factors on asthma exacerbations. Together, the three open exposures APIs provide a valuable resource, with application across environmental and public health fields.


Asunto(s)
Contaminantes Atmosféricos/efectos adversos , Exposición a Riesgos Ambientales/efectos adversos , Contaminantes Ambientales , Medio Social , Acceso a la Información , Contaminantes Atmosféricos/análisis , Exposición a Riesgos Ambientales/análisis , Femenino , Humanos , Masculino , Factores Socioeconómicos , Estados Unidos , United States Environmental Protection Agency
19.
Cancer Epidemiol Biomarkers Prev ; 29(7): 1283-1289, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32371551

RESUMEN

The rapid pace of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2; COVID-19) pandemic presents challenges to the real-time collection of population-scale data to inform near-term public health needs as well as future investigations. We established the COronavirus Pandemic Epidemiology (COPE) consortium to address this unprecedented crisis on behalf of the epidemiology research community. As a central component of this initiative, we have developed a COVID Symptom Study (previously known as the COVID Symptom Tracker) mobile application as a common data collection tool for epidemiologic cohort studies with active study participants. This mobile application collects information on risk factors, daily symptoms, and outcomes through a user-friendly interface that minimizes participant burden. Combined with our efforts within the general population, data collected from nearly 3 million participants in the United States and United Kingdom are being used to address critical needs in the emergency response, including identifying potential hot spots of disease and clinically actionable risk factors. The linkage of symptom data collected in the app with information and biospecimens already collected in epidemiology cohorts will position us to address key questions related to diet, lifestyle, environmental, and socioeconomic factors on susceptibility to COVID-19, clinical outcomes related to infection, and long-term physical, mental health, and financial sequalae. We call upon additional epidemiology cohorts to join this collective effort to strengthen our impact on the current health crisis and generate a new model for a collaborative and nimble research infrastructure that will lead to more rapid translation of our work for the betterment of public health.


Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/epidemiología , Recolección de Datos/métodos , Pandemias , Neumonía Viral/epidemiología , Programas Informáticos , COVID-19 , Infecciones por Coronavirus/diagnóstico , Humanos , Modelos Biológicos , Neumonía Viral/diagnóstico , Salud Pública , SARS-CoV-2 , Teléfono Inteligente , Reino Unido/epidemiología , Estados Unidos/epidemiología
20.
Psychooncology ; 29(1): 76-85, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31659822

RESUMEN

PURPOSE: To evaluate internet-delivered cognitive behavioural therapy (iCBT) on clinical depression and/or anxiety, distress, fear of cancer recurrence, and quality of life in cancer survivors. METHODS: Random assignation of 114 participants to iCBT or treatment-as-usual (TAU). The clinician-supervised iCBT program (iCanADAPT Early) consisted of eight lessons over 16 weeks. Self-report questionnaires occurred at baseline, midpoint, and posttreatment for both groups with 3-month follow-up for iCBT participants. A mixed modelling approach to compare groups occurred. RESULTS: iCBT was superior to TAU on all outcome measures at posttreatment. Compared with TAU, the iCBT group showed a significant decrease over time in anxiety and depression symptoms (primary outcome, Hospital Anxiety and Depression Scale, Hedges g = 1.51). Additionally the iCBT group had significantly lower general distress (Kessler-10, g = 1.56), fear of cancer recurrence (Fear of Cancer Recurrence Inventory, g = 0.39), and significantly higher quality of life (Functional Assessment of Cancer Therapy-General, g = 0.74) at posttreatment compared with the TAU group. High adherence and satisfaction were found for iCBT with low clinician time. CONCLUSION: Clinician-supervised iCBT has significant benefits for cancer survivors with clinical depression and anxiety disorders.


Asunto(s)
Ansiedad/terapia , Supervivientes de Cáncer/psicología , Terapia Cognitivo-Conductual , Depresión/terapia , Intervención basada en la Internet , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad
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