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1.
Psychooncology ; 33(4): e6323, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38629761

RESUMO

OBJECTIVE: Many young adult female cancer survivors need to use reproductive medicine, surrogacy, or adoption to have a child. This study pilot tested Roadmap to Parenthood, a web-based, self-guided decision aid and planning tool for family building after cancer (disease agnostic). METHODS: A single-arm pilot study tested feasibility, acceptability, and obtained effect size estimates of the Roadmap tool. Participants, recruited via hospital-based and social media strategies, completed a baseline survey (T1), accessed the Roadmap tool (website), then completed surveys at one- and 3-months (T2 and T3, respectively). Feasibility and acceptability were evaluated with rates of eligibility, enrollment, and survey completion, and feedback. Pairwise t-tests and repeated measures ANOVA evaluated usage effects. Effect size estimates were calculated. RESULTS: Participants (N = 98) averaged 31 years old (SD = 5.61); 71% were nulliparous. Enrollment rate was 73%, T1-T2 completion rate was 80%, and 93% accessed the website. From T1-T2, participants reported improvements in decisional conflict (p < 0.001; Cohen's d = 0.85), unmet information needs (p < 0.001; Cohen's d = 0.70), self-efficacy (p = 0.003; Cohen's d = 0.40), and self-efficacy for managing negative emotions (p = 0.03; Cohen's d = 0.29); effects were sustained at T3. There was no change in reproductive distress (p = 0.22). By T3, 94% reported increased consideration of preparatory actions and 20%-61% completed such actions. CONCLUSIONS: The Roadmap intervention was feasible to conduct, acceptable to users, and led to improvements in key psychosocial outcomes. Future directions will test intervention efficacy in a randomized controlled trial with a larger sample and over a longer period. A web-based tool may help women make decisions about family building after cancer and prepare for potential challenges.


Assuntos
Sobreviventes de Câncer , Neoplasias , Adulto , Feminino , Humanos , Adulto Jovem , Sobreviventes de Câncer/psicologia , Técnicas de Apoio para a Decisão , Neoplasias/terapia , Neoplasias/psicologia , Projetos Piloto , Reprodução
2.
Artigo em Inglês | MEDLINE | ID: mdl-38451722

RESUMO

This cross-sectional survey study explores the fertility perceptions of adolescent and young adult female cancer survivors (n = 111) and relationships to fertility counseling and reproductive distress. Satisfaction with post-treatment fertility counseling (ß = -0.20, p = 0.04), perceived consequences of cancer-related fertility changes (ß = 0.26, p = 0.03), and understanding of one's reproductive health (ß = -0.22, p = 0.03) correlated with reproductive distress, controlling for covariates (F(10, 88) = 3.50, p < 0.001). Findings suggest that post-treatment counseling may be important to addressing survivors' perceptions of fertility and reproductive potential, which influences levels of distress and to create a greater sense of control on their road to parenthood.

3.
Subst Use Addctn J ; 45(1): 124-135, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38258859

RESUMO

BACKGROUND: Concurrent substance use among adolescents has been associated with an increase in physical and mental health problems. These outcomes tend to be exacerbated among adolescents of color in underserved urban settings. The purpose of this study was to understand alcohol and concurrent drug use patterns among adolescents in an underserved urban community to provide targeted prevention and treatment recommendations. METHOD: This study examined data among adolescents in an underserved urban community (N = 1789; 56.90% female; 70.86% Hispanic/Latino/a; meanage = 15.96 ± 1.56). Using latent class analysis (LCA) and multinomial logistic regression modeling, analyses identified independent correlates of latent class membership. RESULTS: Five latent classes (LC) were identified including LC group 1: Predominant alcohol use and limited to no concurrent-drug use (n = 213; 11.9%); LC group 2: Concurrent drug and alcohol use including methamphetamine, marijuana and synthetic marijuana use, and alcohol use (n = 74; 4.2%); LC group 3: Concurrent drug and alcohol use, with no marijuana use (n = 204; 11.39%); LC group 4: High Concurrent drug use and alcohol use (n = 204; 11.40%); and LC group 5: Concurrent drug use without alcohol use (n = 1101; 61.52%). Significant between group differences were noted between latent class groups and sociodemographic characteristics. Multinomial logistic regression models identified the associations between sociodemographic characteristics and corollary clinical features of substance use on latent class groupings of alcohol and concurrent drug use. CONCLUSION: Understanding concurrent substance use LC groups among adolescents is essential to providing targeted interventions and treatment programs, as well as early intervention programs that may help reduce substance use during adolescence.


Assuntos
Saúde Mental , Transtornos Relacionados ao Uso de Substâncias , Adolescente , Feminino , Humanos , Masculino , Etanol , Consumo de Bebidas Alcoólicas/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Percepção
4.
Int J Stroke ; 19(4): 388-396, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37661311

RESUMO

BACKGROUND AND PURPOSE: Cervical artery dissection (CAD) involving the carotid or vertebral arteries is an important cause of stroke in younger patients. The purpose of this systematic review is to assess the risk of recurrent CAD. METHODS: A systematic review and meta-analysis was conducted on studies in which patients experienced radiographically confirmed dissections involving an extracranial segment of the carotid or vertebral artery and in whom CAD recurrence rates were reported. RESULTS: Data were extracted from 29 eligible studies (n = 5898 patients). Analysis of outcomes was performed by pooling incidence rates with random effects models weighting by inverse of variance. The incidence of recurrent CAD was 4% overall (95% confidence interval (CI) = 3-7%), 2% at 1 month (95% CI = 1-5%), and 7% at 1 year in studies with sufficient follow-up (95% CI = 4-13%). The incidence of recurrence associated with ischemic events was 2% (95% CI = 1-3%). CONCLUSIONS: We found low rates of recurrent CAD and even lower rates of recurrence associated with ischemia. Further patient-level data and clinical subgroup analyses would improve the ability to provide patient-level risk stratification.


Assuntos
Dissecação da Artéria Carótida Interna , Acidente Vascular Cerebral , Dissecação da Artéria Vertebral , Humanos , Acidente Vascular Cerebral/complicações , Dissecação da Artéria Vertebral/epidemiologia , Artéria Vertebral , Artérias Carótidas , Dissecação da Artéria Carótida Interna/diagnóstico por imagem , Dissecação da Artéria Carótida Interna/epidemiologia , Recidiva
5.
J Genet Psychol ; 185(1): 50-64, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37688377

RESUMO

The present study was designed to examine the direct and indirect relations between acculturative stress and Latinx youth prosocial tendencies. In addition, we considered family conflict, parental support, and parental psychological control as explanatory mechanisms. Participants included 306 (53.8% female, Mage = 15.50, SD = .42; range = 14 to 18) Latinx adolescents and their parents (87.9% mothers). The majority of adolescents were born in the U.S. (n = 206, 68.0%; average time in U.S. = 10 years) and identified as a Mexican heritage group member (n = 248, 81.0%). Findings differed by youth gender and suggest that for boys, parental support (but not psychological control) serves as underlying mechanism in the effects of acculturative stress and family conflict on youth's prosocial behaviors. Contrastingly, for girls, parental support (but not psychological control) serves as underlying mechanism in the negative effects of family conflict (but not acculturative stress) on youth's prosocial behaviors. The findings are discussed in the context of the need for integrative theories that account for cultural, family and gender-related socialization mechanisms to better understand prosocial behaviors among Latinx youth.


Assuntos
Altruísmo , Pais , Masculino , Humanos , Feminino , Adolescente , Pais/psicologia , Mães/psicologia , Socialização , Hispânico ou Latino/psicologia
6.
J Genet Psychol ; : 1-10, 2023 Dec 20.
Artigo em Inglês | MEDLINE | ID: mdl-38116757

RESUMO

The current study examined COVID-19 pandemic racial attitudes in out-group empathy and out-group prosocial behaviors. Participants included 467 young adults who completed measures of their racial attitudes during the pandemic, out-group perspective taking and empathic concern, and out-group prosocial behaviors. Results demonstrated that pandemic-related racial attitudes were significantly, positively associated with out-group perspective taking and out-group empathic concern, which both positively predicted multiple forms of out-group prosocial behaviors, including emotional, dire, compliant, and anonymous prosocial behaviors. These findings highlight the important role of perspective taking and empathic concern toward individuals outside one's own ethnic group in explaining how racial attitudes during the pandemic were associated with helping behaviors. Discussion focuses on how color-conscious attitudes during an unprecedented U.S. pandemic crisis might be one avenue for promoting prosociality and harmony.

7.
J Clin Med ; 12(14)2023 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-37510791

RESUMO

Use of guideline-directed medical therapy (GDMT) for treatment of heart failure with reduced ejection fraction (HFrEF) remains unacceptably low. The purpose of this study was to determine whether a digital health tool can augment GDMT for patients with HFrEF. Participants ≥ 18 years old with symptomatic HFrEF (left ventricular ejection fraction ≤ 40%) and with access to a mobile phone with internet were included. Participants were given a blood pressure cuff, instructed in its use, and given regular symptom surveys via cell-phone web-link. Data were transmitted to the Story Health web-based platform, and automated alerts were triggered based on pre-specified vital sign and laboratory data. Health coaches assisted patients with medication education, pharmacy access, and lab access through text messages and phone calls. GDMT titration plans were individually created in the digital platform by local clinicians based on entry vitals and labs. Twelve participants enrolled and completed the study. The median age and LVEF were 52.5 years (IQR, 46.5-63.5) and 25% (IQR, 22.5-35.5), respectively. There were 10 GDMT initiations, 52 up-titrations, and 13 down-titrations. Five participants engaged in focus-group interviews following study completion to understand first-hand perspectives regarding the use of digital tools to manage GDMT. Participants expressed comfort knowing that there were clinicians regularly reviewing their data. This alleviated concerns of uncertainty in daily living, led to an increased feeling of security, and empowered patients to understand decision-making regarding GDMT. Frequent medication changes, and the associated financial impact, were common concerns. Remote titration of GDMT for HFrEF is feasible and appears to be a patient-centered approach to care.

8.
AIDS Behav ; 27(12): 3886-3904, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37493932

RESUMO

Antiretroviral therapy (ART) adherence is key to achieving viral load suppression and ending the HIV epidemic but monitoring and supporting adherence using current interventions is challenging. We assessed the feasibility, acceptability and appropriateness of MedViewer (MV), a novel intervention that provides real-time adherence feedback for patients and providers using infra-red matrix-assisted laser desorption electrospray ionization (IR-MALDESI) for mass spectrometry imaging of daily ART concentrations in patients' hair. We used mixed methods to feasibility test MV at a busy Infectious Diseases (ID) clinic, enrolling 16 providers and 36 patients. Providers underwent standardized training; patients and providers watched an 8-min informational video about MV. We collected patient and provider data at baseline and within 24 h of clinic visits and, with patients, approximately 1 month after clinic visits. MedViewer was feasible, liked by patients and providers, and perceived to help facilitate adherence conversations and motivate patients to improve adherence. Trial Registration: NCT04232540.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Humanos , Infecções por HIV/tratamento farmacológico , Retroalimentação , Estudos de Viabilidade , Adesão à Medicação , Antirretrovirais/uso terapêutico , Cabelo/química , Fármacos Anti-HIV/uso terapêutico , Fármacos Anti-HIV/análise
9.
JMIR Res Protoc ; 12: e41188, 2023 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-37083754

RESUMO

BACKGROUND: Adherence to antiretroviral (ARV) therapy is critical for achieving HIV RNA suppression in people living with HIV and for preventing HIV infection in uninfected individuals using preexposure prophylaxis. However, a high level of adherence can be challenging to achieve for people living with HIV on lifelong ARVs and for HIV-negative individuals using daily preexposure prophylaxis who are not at daily risk for HIV infection. Current biological measures of adherence are invasive and use bioanalytical methods that do not allow for real-time feedback during a clinic visit. This study was designed to test the feasibility and acceptability of using MedViewer, a novel, minimally invasive, hair-based assay that measures longitudinal ARV drug adherence in real time and provides an output for provider-patient discussion. OBJECTIVE: The primary objectives were to investigate the feasibility of delivering the MedViewer results as planned, the acceptability of participation in a discussion of the MedViewer results, and the appropriateness of using MedViewer for adherence counseling. The secondary objectives were to investigate additional dimensions of feasibility, acceptability, and appropriateness of using the MedViewer test during a routine clinic visit for people with HIV. METHODS: The proposed study was a single-arm cross-sectional study among patients receiving HIV care and providers of HIV care in a southeastern infectious disease clinic. The study originally planned to implement the MedViewer test with 50 eligible patients who were living with HIV across 2 viral load strata (undetectable or detectable plasma HIV RNA over the previous 2 years), administer brief visit-specific questionnaires to all patient and provider participants, and conduct qualitative in-depth interviews and quantitative end-line questionnaires with a subsample of patient participants (n=30) and all provider participants. RESULTS: The Establishing Novel Antiretroviral Imaging for Hair to Elucidate Nonadherence study was funded by the National Institute of Allergy and Infectious Diseases and approved by the local institutional review board on November 4, 2019. Provider participant enrollment began on January 17, 2020, and patient participant enrollment began on January 22, 2020. Participant enrollment was halted on March 16, 2020, because of the COVID-19 pandemic (16 providers and 10 patients on study). Study activities resumed on February 2, 2021, with COVID-19 modifications approved by the local institutional review board. Participant enrollment closed on October 8, 2021, and data collection closed on November 15, 2021. In total, 36 unique patient participants, representing 37 samples, and 20 provider participants were enrolled. Data analysis and manuscript writing will take place throughout 2023. CONCLUSIONS: We anticipate that the data collected through this study will provide important insights regarding the feasibility, acceptability, and appropriateness of incorporating new real-time longitudinal, minimally invasive adherence tests into routine clinical care and identify potential barriers to medication adherence among patients. TRIAL REGISTRATION: ClinicalTrials.gov NCT04232540; https://clinicaltrials.gov/ct2/show/NCT04232540. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR1-10.2196/41188.

10.
Issues Ment Health Nurs ; 44(2): 121-129, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36794344

RESUMO

In this article, we present the results of an interpretive phenomenology looking at mental health nurses' experiences of associative stigma when accessing physical health care for their patients. Our results illustrate the multifaceted dynamics of stigma in the context of mental health nursing and the direct impacts stigmatizing behaviors have on mental health nurses and patients alike, including an impeded access to health care services, loss of social status and personhood, and the internalization of stigma. They also highlight how nurses resist to stigma and how they help their patients cope with stigmatization.


Assuntos
Enfermeiras e Enfermeiros , Enfermagem Psiquiátrica , Humanos , Saúde Mental , Estigma Social , Atenção à Saúde
11.
JAMA Netw Open ; 5(7): e2220671, 2022 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-35788669

RESUMO

Importance: The most suitable analytic method to systematically analyze numerous trials with contradictory results is unclear. Multiple trials assessing the use of N-acetylcysteine (NAC) for prevention of contrast-induced acute kidney injury (CI-AKI) have had contradictory results with recent trials confirming a lack of benefit. Objective: To systematically review the literature on NAC for the prevention of CI-AKI, and to explore the heterogeneity, publication bias, and small-study effect to determine the most suitable analytic method in a setting where the literature is contradictory. Data Sources: Medline, Embase, and Cochrane Central Register of Controlled Trials databases were used to find randomized clinical trials (RCTs) comparing NAC with any other prophylactic agent or placebo in adults. Study Selection: The search included studies published in English from database inception to January 2020. Two independent reviewers screened the studies, extracted data, and performed the risk of bias assessment. Data Extraction and Synthesis: A meta-analysis was conducted about the effect of NAC on CI-AKI, the need for dialysis, and mortality. Fixed and random effects analyses were also performed. Funnel plots and the trim and fill method were used for assessment of publication bias. Metaregression was performed to explore the heterogeneity and subgroup analysis to examine the association between NAC and CI-AKI when studies were categorized according to sample size and number of events. Results: A total of 101 trials were included in this meta-analysis. The median sample size was 112 (range, 20 to 4993). Twenty-nine trials had a sample size of 200 or more, and only 3 trials had a sample size of 500 or more. Forty-five trials reported the need for kidney replacement therapy, and 41 trials reported mortality as an outcome. NAC seemed to show a benefit, with a pooled OR of 0.72 (95% CI, 0.63-0.82) using random effects model and a pooled OR of 0.82 (95% CI 0.76-0.90) using a fixed effects model. However, there was significant heterogeneity (I2 = 37.6; P < .001) and significant publication bias, which was reduced only when restricting to large RCTs (N ≥ 500). The clinical outcomes (ie, the need for kidney replacement therapy and mortality) revealed little heterogeneity and no publication bias, and each provided a robust neutral summary result. Conclusions and Relevance: In this meta-analysis, NAC was associated with a benefit in the prevention of CI-AKI. However, because of substantial publication bias and other biases, standard meta-analytic techniques resulted in significant heterogeneity and a spurious, or factitious, association, even when using a random effects model. When the analysis was restricted to RCTs with a large sample size to account for publication bias or restricted to trials with clinical outcomes, this issue was reduced and resulted in more robust and neutral effect sizes.


Assuntos
Acetilcisteína , Injúria Renal Aguda , Acetilcisteína/efeitos adversos , Acetilcisteína/uso terapêutico , Injúria Renal Aguda/induzido quimicamente , Injúria Renal Aguda/prevenção & controle , Humanos , Viés de Publicação , Diálise Renal , Terapia de Substituição Renal
12.
J Genet Psychol ; 183(6): 527-536, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35802473

RESUMO

The goal of the current study was to examine the predictive role of economic stress and community self-efficacy on prosocial behaviors toward friends and strangers, and civic engagement. In addition, we considered the multiplicative effects of economic stress and community self-efficacy on these distinct types of prosocial behaviors (different targets of prosocial behaviors). The sample consisted of 202 young adults (M age = 20.94 years; 76.5% women; 67.5% reported identifying as racially White; 7.7% Black; 5.7% Asian; 5.5% Native; 13.6% other and included groups such as Mestizo, mixed race, and Mexican) who reported on their economic stress, community self-efficacy, and tendencies to engage in prosocial behaviors toward friends and strangers as well as civic engagement. The results demonstrated that economic stress was not directly associated with prosocial behaviors or civic engagement. Community self-efficacy was positively associated with civic engagement and prosocial behaviors toward both friends and strangers. The interaction term was positively associated with prosocial behaviors toward friends. Discussion focuses on the critical role of community self-efficacy as a buffer against stress and as a predictor of multiple forms of prosocial behaviors.


Assuntos
Comportamento do Adolescente , Autoeficácia , Adolescente , Adulto Jovem , Humanos , Feminino , Adulto , Masculino , Comportamento Social , Altruísmo , Amigos
13.
Adv Child Dev Behav ; 63: 129-148, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35871820

RESUMO

Latinx youth in the United States face structural barriers that contribute to inequities across multiple domains (e.g., education, juvenile justice, healthcare systems), as racial biases permeate social institutions. The systemic oppression resulting from racism can be seen in disparities across many indicators of health, including physical health, education, socioeconomic conditions, and the overrepresentation of ethnic and racial minority individuals, including Latinx individuals, incarcerated and exposed to violence. We present an approach to combat social inequities and injustices by promoting and fostering prosocial behaviors (i.e., actions that benefit others) between majority and minority members of our society. Existing theories and research on the factors that can promote such behaviors across youth from different backgrounds is summarized though we highlight work in U.S. Latinx youth. Factors that enhance and undermine prosocial behaviors towards diverse others is also summarized. Finally, some recommendations for intervention and policy efforts are briefly presented.


Assuntos
Altruísmo , Racismo , Adolescente , Etnicidade , Humanos , Grupos Minoritários , Estados Unidos , Violência
14.
Advers Resil Sci ; 3(3): 247-259, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35677462

RESUMO

African American and US Latinx families have faced over two centuries of systemic racism and discrimination, elevating risk for trauma, adversity, and disparities for their youth. These circumstances have compromised the health and well-being of many of these youth. However, many other African American and US Latinx youth are able to succeed despite these challenges. In recent years, scholars have begun to identify ways in which minoritized youth adapt and respond to adversity to become competent, well-functioning individuals. Drawing on two conceptual models of cultural resilience, one grounded in the study of African American youth and one grounded in the study of US Latinx youth, we summarize supportive research associated with each model. Using these conceptual models to guide our critical review of extant studies, we present an integrative review of work to guide the design of strength-based, cultural asset-centered research studies and preventive interventions targeting African American and US Latinx youth.

15.
Issues Ment Health Nurs ; 43(9): 843-851, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35380908

RESUMO

Mental health nurses report experiencing stigmatization both from within and outside the profession, and associative stigma provides one way to explore that experience. To better understand the current state of the literature on mental health care professionals' experiences of associative stigma, and particularly on nurses' experience of this phenomenon, an integrative review of the literature on the subject was conducted. The results detail factors associated with associative stigma, the effects of associative stigma on nurses and caregivers of persons with mental illnesses, and the quantification of associative stigma. This article concludes by discussing implications for nursing practice, education, and research.


Assuntos
Enfermeiras e Enfermeiros , Enfermagem Psiquiátrica , Humanos , Saúde Mental , Estigma Social , Estereotipagem
16.
Fam Pract ; 39(5): 819-825, 2022 09 24.
Artigo em Inglês | MEDLINE | ID: mdl-35137033

RESUMO

BACKGROUND: Low-carbohydrate and high-fat (LCHF) diets are shown to have health benefits such as weight loss and improved cardiovascular health. Few studies, however, on LCHF diets have been completed in a real-world primary care setting over an extended period of time. OBJECTIVES: To examine the efficacy of a low-carbohydrate, high-fat dietary educational intervention delivered in a family practice setting on weight, body mass index (BMI), blood pressure, glycated haemoglobin (HbA1c), fasting insulin, estimated glomerular filtration rate (eGFR), and albumin to creatinine ratio (ACR). A secondary objective was to determine whether compliance to the program had an effect on outcomes. METHODS: In this retrospective chart review, we collected laboratory and anthropometric data from an electronic medical record system for patients (n = 122) at least 19 years of age, who attended at least 2 LCHF educational sessions between January 2018 and May 2020. Pre-post mean differences of outcome were analysed using paired sample t-tests. Independent sample t-tests examined the effect of compliance on the outcomes. RESULTS: Statistically significant reductions in weight (3.96 kg [P < 0.001]) and BMI (1.46 kg/m2 [P = 0.001]) were observed. Compared with patients who participated in ≤5 educational visits, patients who participated in >5 visits showed trends towards more clinically significant changes in weight, BMI, systolic blood pressure, diastolic blood pressure, HbA1c, eGFR, and ACR. CONCLUSION: Improvements in weight and BMI indicate the utility of providing LCHF health promotion interventions in primary care settings. Greater compliance to LCHF interventions results in greater improvement in laboratory and anthropometric outcomes, including HbA1c.


Assuntos
Dieta com Restrição de Carboidratos , Insulinas , Albuminas , Doença Crônica , Creatinina , Hemoglobinas Glicadas , Humanos , Atenção Primária à Saúde , Estudos Retrospectivos
18.
Neurotoxicology ; 89: 67-78, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35041872

RESUMO

Bisphenol A (BPA) is an environmentally prevalent endocrine disrupting chemical that can impact human health and may be an environmental risk factor for neurodevelopmental disorders. BPA has been associated with behavioral impairment in children and a variety of neurodevelopmental phenotypes in model organisms. We used Drosophila melanogaster to explore the consequences of developmental BPA exposure on gene expression, cognitive function, and synapse development. Our transcriptome analysis indicated neurodevelopmentally relevant genes were predominantly downregulated by BPA. Among the misregulated genes were those with roles in learning, memory, and synapse development, as well as orthologs of human genes associated with neurodevelopmental and neuropsychiatric disorders. To examine how gene expression data corresponded to behavioral and cellular phenotypes, we first used a predator-response behavioral paradigm and found that BPA disrupts visual perception. Further analysis using conditioned courtship suppression showed that BPA impairs associative learning. Finally, we examined synapse morphology within the larval neuromuscular junction and found that BPA significantly increased the number of axonal branches. Given that our findings align with studies of BPA in mammalian model organisms, this data indicates that BPA impairs neurodevelopmental pathways that are functionally conserved from invertebrates to mammals. Further, because Drosophila do not possess classic estrogen receptors or estrogen, this research suggests that BPA can impact neurodevelopment by molecular mechanisms distinct from its role as an estrogen mimic.


Assuntos
Drosophila melanogaster , Disruptores Endócrinos , Animais , Compostos Benzidrílicos/toxicidade , Cognição , Drosophila melanogaster/genética , Expressão Gênica , Mamíferos , Fenóis
19.
Biophys J ; 121(4): 575-581, 2022 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-35032457

RESUMO

The synovium is a multilayer connective tissue separating the intra-articular spaces of the diarthrodial joint from the extra-synovial vascular and lymphatic supply. Synovium regulates drug transport into and out of the joint, yet its material properties remain poorly characterized. Here, we measured the compressive properties (aggregate modulus, Young's modulus, and Poisson's ratio) and hydraulic permeability of synovium with a combined experimental-computational approach. A compressive aggregate modulus and Young's modulus for the solid phase of synovium were quantified from linear regression of the equilibrium confined and unconfined compressive stress upon strain, respectively (HA = 4.3 ± 2.0 kPa, Es = 2.1 ± 0.75, porcine; HA = 3.1 ± 2.0 kPa, Es = 2.8 ± 1.7, human). Poisson's ratio was estimated to be 0.39 and 0.40 for porcine and human tissue, respectively, from moduli values in a Monte Carlo simulation. To calculate hydraulic permeability, a biphasic finite element model's predictions were numerically matched to experimental data for the time-varying ramp and hold phase of a single increment of applied strain (k = 7.4 ± 4.1 × 10-15 m4/N.s, porcine; k = 7.4 ± 4.3 × 10-15 m4/N.s, human). We can use these newly measured properties to predict fluid flow gradients across the tissue in response to previously reported intra-articular pressures. These values for material constants are to our knowledge the first available measurements in synovium that are necessary to better understand drug transport in both healthy and pathological joints.


Assuntos
Cartilagem Articular , Animais , Cartilagem Articular/fisiologia , Força Compressiva/fisiologia , Elasticidade , Humanos , Modelos Biológicos , Permeabilidade , Estresse Mecânico , Suínos , Membrana Sinovial
20.
J Res Adolesc ; 32(2): 417-431, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35037329

RESUMO

This study examined the role of racial attitudes in a diverse high school setting. Teachers and students were recruited from a public charter high school in Albuquerque, New Mexico. The final sample consisted of 19 students and 10 teachers who participated in face-to-face interviews regarding racial attitudes and racial bias in the academic setting. Three themes emerged among the teacher interviews: rejecting racial inequalities, contradicting thoughts and color-blind explanations, and racially conscious explanations. For the student interviews, two themes emerged: color-blind racial attitudes and witnessing/experiencing bias. These findings yield evidence that color-blind racial attitudes are prevalent in diverse schools among students and teachers, presenting a challenge to intervention efforts in schools aimed at promoting racial justice.


Assuntos
Instituições Acadêmicas , Estudantes , Atitude , Humanos , Grupos Raciais , Professores Escolares
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