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1.
JMIR Public Health Surveill ; 10: e52691, 2024 May 03.
Artigo em Inglês | MEDLINE | ID: mdl-38701436

RESUMO

BACKGROUND: Structural racism produces mental health disparities. While studies have examined the impact of individual factors such as poverty and education, the collective contribution of these elements, as manifestations of structural racism, has been less explored. Milwaukee County, Wisconsin, with its racial and socioeconomic diversity, provides a unique context for this multifactorial investigation. OBJECTIVE: This research aimed to delineate the association between structural racism and mental health disparities in Milwaukee County, using a combination of geospatial and deep learning techniques. We used secondary data sets where all data were aggregated and anonymized before being released by federal agencies. METHODS: We compiled 217 georeferenced explanatory variables across domains, initially deliberately excluding race-based factors to focus on nonracial determinants. This approach was designed to reveal the underlying patterns of risk factors contributing to poor mental health, subsequently reintegrating race to assess the effects of racism quantitatively. The variable selection combined tree-based methods (random forest) and conventional techniques, supported by variance inflation factor and Pearson correlation analysis for multicollinearity mitigation. The geographically weighted random forest model was used to investigate spatial heterogeneity and dependence. Self-organizing maps, combined with K-means clustering, were used to analyze data from Milwaukee communities, focusing on quantifying the impact of structural racism on the prevalence of poor mental health. RESULTS: While 12 influential factors collectively accounted for 95.11% of the variability in mental health across communities, the top 6 factors-smoking, poverty, insufficient sleep, lack of health insurance, employment, and age-were particularly impactful. Predominantly, African American neighborhoods were disproportionately affected, which is 2.23 times more likely to encounter high-risk clusters for poor mental health. CONCLUSIONS: The findings demonstrate that structural racism shapes mental health disparities, with Black community members disproportionately impacted. The multifaceted methodological approach underscores the value of integrating geospatial analysis and deep learning to understand complex social determinants of mental health. These insights highlight the need for targeted interventions, addressing both individual and systemic factors to mitigate mental health disparities rooted in structural racism.


Assuntos
Aprendizado de Máquina , Humanos , Wisconsin/epidemiologia , Feminino , Masculino , Saúde Mental/estatística & dados numéricos , Disparidades nos Níveis de Saúde , Análise Espacial , Adulto , Racismo Sistêmico/estatística & dados numéricos , Racismo Sistêmico/psicologia , Racismo/estatística & dados numéricos , Racismo/psicologia , Pessoa de Meia-Idade
2.
J Trauma Stress ; 2024 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-38650107

RESUMO

Traumatic, life-threatening events are experienced commonly among the general U.S. population, yet Black individuals in the United States (i.e., Black Americans) exhibit higher prevalence rates of posttraumatic stress disorder (PTSD) and more severe symptoms than other populations. Although empirical research has noted a range of symptom patterns that follow traumatic injury, minimal work has examined the role of racial discrimination in relation to PTSD symptom trajectories. The current study assessed racial discrimination and PTSD symptom trajectories at 6 months postinjury across two separate samples of traumatically injured Black Americans (i.e. emergency department (ED)-discharged and hospitalized). Identified PTSD symptom trajectories largely reflect those previously reported (i.e., ED: nonremitting, moderate, remitting, and resilient; hospitalized: nonremitting, delayed, and resilient), although the resilient trajectory was less represented than expected given past research (ED: 55.8%, n = 62; hospitalized: 46.9%, n = 38). Finally, higher racial discrimination was associated with nonremitting, ED: relative risk ratio (RR) = 1.32, hospitalized: RR = 1.23; moderate, ED: RR = 1.18; and delayed, hospitalized: RR = 1.26, PTSD symptom trajectories. Overall, the current findings not only emphasize the inimical effects of racial discrimination but also demonstrate the unique ways in which race-related negative events can impact PTSD symptom levels and recovery across time.

3.
J Comp Eff Res ; 13(4): e230127, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38329429

RESUMO

Aim: Comprehensive medication management (CMM) is a clinical service that aims to optimize the therapeutic results of patients at the individual level. Studies carried out in Brazil and in several parts of the world have found a positive impact of the service, mainly in the resolution of drug therapy problems and in improving clinical outcomes and patients' quality of life. This service is not widespread and its acceptability and willingness to pay were not defined by the population yet. Objective: This work aims to conduct a study with users of private health services to determine the acceptability and willingness to pay for CMM services. Methods: This is a cross-sectional survey conducted through face-to-face interviews, among residents over 18 years of age of the metropolitan region of Belo Horizonte, capital of Minas Gerais State, Brazil. Results: For this study, 563 individuals were interviewed. Most respondents were female (55.1%), had completed high school (46.8%) and were employed (62.5%). The acceptability for the service was 93,25%, and among all respondents, 37 would not accept the service even if it was free. The amount of consumers' willingness to pay for the CMM service was estimated at $17.75 (40.00 BRL). Conclusion: The research results show that most people are willing to pay for the CMM service. This study can contribute to the decision-making regarding the implementation and pricing of the service in Brazil.


Assuntos
Conduta do Tratamento Medicamentoso , Qualidade de Vida , Humanos , Feminino , Adolescente , Adulto , Masculino , Brasil , Estudos Transversais , Inquéritos e Questionários
4.
J Clin Child Adolesc Psychol ; 53(1): 52-65, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38270576

RESUMO

OBJECTIVES: The present study examined how different family level (family financial stress, family violence) and individual (food insecurity, gender, race) determinants of health were associated with mental health among Puerto Rican adolescents living in the U.S. during the COVID-19 pandemic. METHOD: A sample consisting of 119 Puerto Rican adolescents, aged 13 to 17, was collected via Qualtrics Panels between November 2020 and January 2021. We examined the association between family financial stress experienced during the pandemic and psychological distress. We also evaluated whether the association between family financial stress and psychological distress was moderated by family violence, food insecurity, and the participant's gender and race. RESULTS: Findings showed that food insecurity positively predicted psychological distress. Results also showed that participants' race moderated the association between family financial stress and psychological distress. Specifically, we found that while there was a significant positive association between family financial stress and psychological distress among Puerto Rican adolescents who identified as a racial minority, this association was nonsignificant among White Puerto Rican adolescents. CONCLUSION: Our research highlights the significant role of COVID-19 related family financial stress and food insecurity on Puerto Rican adolescents' poor mental health during the COVID-19 pandemic.


Assuntos
COVID-19 , Estresse Financeiro , Hispânico ou Latino , Saúde Mental , Pandemias , Estresse Psicológico , Adolescente , Humanos , Ansiedade , COVID-19/epidemiologia , COVID-19/etnologia , COVID-19/psicologia , Hispânico ou Latino/etnologia , Hispânico ou Latino/psicologia , Hispânico ou Latino/estatística & dados numéricos , Saúde Mental/etnologia , Saúde Mental/estatística & dados numéricos , Estados Unidos/epidemiologia , Porto Rico/etnologia , Estresse Financeiro/economia , Estresse Financeiro/epidemiologia , Estresse Financeiro/etnologia , Estresse Financeiro/psicologia , Insegurança Alimentar/economia , Estresse Psicológico/economia , Estresse Psicológico/epidemiologia , Estresse Psicológico/etnologia , Estresse Psicológico/psicologia
5.
J Clin Child Adolesc Psychol ; 53(1): 114-128, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38270572

RESUMO

OBJECTIVES: We explored racial differences in discrimination, perceived inequality, coping strategies, and mental health among 869 Latinx adolescents (Mage = 15.08) in the US. We then examined the moderating effects of race and perceived inequality in the associations between discrimination and coping strategies, and between discrimination and mental health. METHOD: ANOVAs assessed group differences in the study variables based on race. Moderated regression analyses examined whether there was a 2 or 3-way interaction between race, perceived inequality, and discrimination on coping strategies and mental health as separate outcomes. RESULTS: Black Latinx adolescents reported significantly higher rates of discrimination and perceived inequality than White and Other Race Latinx adolescents. Biracial Latinx adolescents reported higher rates of discrimination and poorer mental health than White Latinx adolescents. There was a significant 2-way interaction between discrimination and perceived inequality for engaged and disengaged coping. Discrimination was positively associated with engaged coping for low levels but not medium and high levels of perceived inequality. Discrimination was positively related to disengaged coping at medium and high levels of perceived inequality but not at low levels of perceived inequality. There was a significant 2-way interaction between discrimination and race for engaged and disengaged coping. Discrimination was negatively related to engaged coping for Black Latinx but not White Latinx adolescents. Discrimination was positively correlated to disengaged coping for Black Latinx but not Other Race Latinx adolescents. CONCLUSIONS: This research provides preliminary evidence of racial group differences among Latinx adolescents regarding various indicators of mental health, which may help inform mental health interventions and federal policy.


Assuntos
COVID-19 , Racismo , Humanos , Adolescente , Saúde Mental , Capacidades de Enfrentamento , Racismo/psicologia , Fatores Raciais , Hispânico ou Latino/psicologia
6.
Brain Behav Immun ; 116: 229-236, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38070623

RESUMO

Up to 40 % of individuals who sustain traumatic injuries are at risk for posttraumatic stress disorder (PTSD) and the conditional risk for developing PTSD is even higher for Black individuals. Exposure to racial discrimination, including at both interpersonal and structural levels, helps explain this health inequity. Yet, the relationship between racial discrimination and biological processes in the context of traumatic injury has yet to be fully explored. The current study examined whether racial discrimination is associated with a cumulative measure of biological stress, the gene expression profile conserved transcriptional response to adversity (CTRA), in Black trauma survivors. Two-weeks (T1) and six-months (T2) post-injury, Black participants (N = 94) provided a blood specimen and completed assessments of lifetime racial discrimination and PTSD symptoms. Mixed effect linear models evaluated the relationship between change in CTRA gene expression and racial discrimination while adjusting for age, gender, body mass index (BMI), smoking history, heavy alcohol use history, and trauma-related variables (mechanism of injury, lifetime trauma). Results revealed that for individuals exposed to higher levels of lifetime racial discrimination, CTRA significantly increased between T1 and T2. Conversely, CTRA did not increase significantly over time in individuals exposed to lower levels of lifetime racial discrimination. Thus, racial discrimination appeared to lead to a more sensitized biological profile which was further amplified by the effects of a recent traumatic injury. These findings replicate and extend previous research elucidating the processes by which racial discrimination targets biological systems.


Assuntos
Racismo , Transtornos de Estresse Pós-Traumáticos , Humanos , Centros de Traumatologia , População Negra/genética , Transtornos de Estresse Pós-Traumáticos/genética , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Expressão Gênica/genética
7.
Cultur Divers Ethnic Minor Psychol ; 30(2): 385-394, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37199960

RESUMO

OBJECTIVE: Sexual minority adults of Latinx descent faced compounded intersectional stressors during the COVID-19 pandemic across socioeconomic and health domains. Latinx people have experienced some of the highest COVID-19 infection, hospitalization, and mortality rates in the United States in addition to significant economic challenges. Yet, current data have not observed the unique pandemic-related experiences of sexual minority Latinx (SML) adults. We examined sexual identity differences in economic and household stress, social support, mental health symptomatology (depression, anxiety), alcohol, and substance use among sexual minority and nonsexual minority Latinx adults in the United States. METHOD: Primary data were collected via the AmeriSpeak panel, a national probability sample of U.S.-based 2,286 Latinx adults [sexual minority = .34% (n = 465)]. Data were collected from November 2020 to January 2021, during the third wave of the COVID-19 pandemic. RESULTS: SML adults endorsed higher levels of economic and household stress, mental health symptomatology, and alcohol and substance use than nonsexual minority Latinx adults. Economic stress was associated with increased mental health symptomatology, alcohol, and substance use among SML adults. Social support moderated the association between economic stress and mental health symptomatology and substance use, but not alcohol use. CONCLUSION: Findings highlighted unique intersectional considerations among SML adults during the COVID-19 pandemic, including the importance of social support and the negative toll of economic stress on mental health and substance use. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Assuntos
COVID-19 , Estresse Financeiro , Minorias Sexuais e de Gênero , Transtornos Relacionados ao Uso de Substâncias , Adulto , Humanos , COVID-19/epidemiologia , Heterossexualidade , Hispânico ou Latino/psicologia , Saúde Mental , Pandemias/economia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Estados Unidos/epidemiologia
8.
Animals (Basel) ; 13(22)2023 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-38003092

RESUMO

The first instar nymphs, both male and female, of the giant stick insect Cladomorphus phyllinus Gray, 1835 were carefully described and measured, revealing a remarkable sexual dimorphism that is considered rare among insects and is poorly explored in the order Phasmida. The studied F1 nymphs originated in captivity from eggs laid by a coupled female specimen collected in the Atlantic Forest in the vicinity of Petrópolis city, state of Rio de Janeiro, Brazil. The first instar nymphs of C. phyllinus were measured and illustrated in high-resolution photographs to show the general aspects and details of sexually dimorphic traits, making clear the phenotypic differences in the sexes. A total of 100 nymphs were kept alive until morphological sexual dimorphism was confirmed and quantified. All recently hatched first instar nymphs were separated based on the presumed male and female characteristics, i.e., the presence and absence of the suture in the metanotum in the males and females, respectively, had their sexes confirmed in 100% of the specimens as previously assigned. These results confirm this new morphological trait, which here is named "alar suture" as sex-specific in the first instar nymphs, a novelty in this stage of development of sexual differentiation. In addition, the distinct conformations of the last three abdominal sternites of both sexes were recorded.

9.
Anal Chem ; 95(48): 17513-17524, 2023 12 05.
Artigo em Inglês | MEDLINE | ID: mdl-37991882

RESUMO

Orthogonal separation techniques coupled to high-resolution mass spectrometry are required for characterizing the human lipidome, given its inherent chemical and structural complexity. However, electrophoretic separations remain largely unrecognized in contemporary lipidomics research compared to established chromatographic and ion mobility methods. Herein, we introduce a novel derivatization protocol based on 3-methyl-1-p-tolyltriazene (MTT) as a safer alternative to diazomethane for quantitative phospholipid (PL) methylation (∼90%), which enables their rapid analysis by multisegment injection-nonaqueous capillary electrophoresis-mass spectrometry (MSI-NACE-MS). Isobaric interferences and ion suppression effects were minimized by performing an initial reaction using 9-fluorenylmethyoxycarbonyl chloride prior to MTT and a subsequent back extraction in hexane. This charge-switch derivatization strategy expands lipidome coverage when using MSI-NACE-MS under positive ion mode with improved resolution, greater sensitivity, and higher throughput (∼3.5 min/sample), notably for zwitterionic PLs that are analyzed as their cationic phosphate methyl esters. Our method was validated by analyzing methyl-tert-butyl ether extracts of reference human plasma, which enabled a direct comparison of 48 phosphatidylcholine and 27 sphingomyelin species previously reported in an interlaboratory lipidomics harmonization study. The potential for plasma PL quantification by MSI-NACE-MS via a serial dilution of NIST SRM-1950 was also demonstrated based on estimation of relative response factors using their reported consensus concentrations. Moreover, lipid identification was supported by modeling predictable changes in the electrophoretic mobility for cationic PLs in conjunction with MS/MS. Overall, this work offers a practical derivatization protocol to expand lipidome coverage in CE-MS beyond the analysis of hydrophilic/polar metabolites under aqueous buffer conditions.


Assuntos
Lipidômica , Espectrometria de Massas em Tandem , Humanos , Metilação , Fosfolipídeos/química , Eletroforese Capilar/métodos
10.
Trop Anim Health Prod ; 55(5): 347, 2023 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-37792107

RESUMO

This study evaluated the effect of different fiber sources supplied with cactus cladodes in diets on the intake and digestibility of nutrients, ingestive behavior, milk yield, and composition of dairy goats. The fiber sources were corn silage, sorghum silage, Digitaria pentzii Stent. hay, and sugarcane bagasse. Twelve Saanen goats with an average weight of 48.9 ± 7.3 kg and average production of 2.8 ± 0.7 kg of milk/day were assigned in three simultaneous 4 × 4 Latin squares (four animals, four treatments, and four experimental periods). There was no difference between the fiber sources for intake (P > 0.05) of dry matter (2.58 kg/day), organic matter (2.30 kg/day), crude protein (0.385 kg/day), neutral detergent fiber (0.895 kg/day), non-fibrous carbohydrates (0.858 kg/day), and metabolizable energy (5.66 Mcal/day). Also, the fiber sources did not influence dry matter and nutrient digestibility (P > 0.05). The association of cactus cladodes with silages, hay, and sugarcane bagasse did not change milk production, milk production corrected for 3.5% of fat and corrected for energy (2.78; 2.53 and 2,55 kg/day, respectively), in addition to milk composition (P > 0.05). No differences were observed in ingestive behavior (P > 0.05). Any fiber sources evaluated are recommended.


Assuntos
Cactaceae , Saccharum , Feminino , Animais , Celulose/metabolismo , Fibras na Dieta/metabolismo , Lactação , Digestão , Dieta/veterinária , Leite/metabolismo , Silagem/análise , Zea mays/metabolismo , Cabras/metabolismo , Rúmen/metabolismo
11.
Violence Against Women ; 29(15-16): 3143-3157, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37710990

RESUMO

The current study investigated the role of hope in the relationship between intimate partner violence (IPV) and suicide risk behaviors among a community sample of Latinas (N = 180). Moderation analyses revealed significant interaction effects demonstrating that both aspects of hope-agency and pathways-were associated with suicide risk behaviors at high levels of IPV. Results suggest hope may be helpful when IPV is at low levels, but it may exacerbate suicide risk when high levels of IPV are experienced among Latinas. Future directions and implications are discussed, including the importance of understanding the unique cultural context in which Latina survivors exist.


Assuntos
Esperança , Violência por Parceiro Íntimo , Suicídio , Humanos , Hispânico ou Latino/psicologia , Violência por Parceiro Íntimo/psicologia , Assunção de Riscos , Suicídio/psicologia , Violência/psicologia , Feminino
13.
Artigo em Inglês | MEDLINE | ID: mdl-37155261

RESUMO

OBJECTIVES: The COVID-19 pandemic has exacerbated previously existing disparities and introduced new challenges for individuals living at the intersection of marginalized identities, such as Latinx women. For instance, increases in alcohol use have been noted during the COVID-19 pandemic, yet it is unclear which circumstances experienced are more likely to predict alcohol use among Latinx women. METHOD: The present study sought to identify the profile of intersectional factors, namely immigrant status, socioeconomic standing, and age, and COVID-19 stressors that predicted high or hazardous alcohol use among 1,227 Latinx women living in the United States. RESULTS: The main findings, in the form of a binomial logistic regression, revealed a pattern of circumstances that differentiated high and low alcohol use including income, age, history of COVID-19 infection, disruptions in work, and emotional health difficulties. CONCLUSIONS: Overall, the present study provides an important contribution to the extant research literature by demonstrating the importance of considering syndemic effects of COVID-19 when addressing health behaviors for Latinx women. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

14.
Eur J Psychotraumatol ; 14(2): 2211486, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37229524

RESUMO

Background: Racial discrimination is a traumatic stressor that increases the risk for posttraumatic stress disorder (PTSD), but mechanisms to explain this relationship remain unclear. Peritraumatic dissociation, the complex process of disorientation, depersonalization, and derealization during a trauma, has been a consistent predictor of PTSD. Experiences of frequent racial discrimination may increase the propensity for peritraumatic dissociation in the context of new traumatic experiences and contribute to PTSD symptoms. However, the role of peritraumatic dissociation in the relationship between experiences of discrimination and PTSD has not been specifically explored.Objective: The current study investigated the role of peritraumatic dissociation in the impact of racial discrimination on PTSD symptoms after a traumatic injury, and the moderating role of gender.Method: One hundred and thirteen Black/African American individuals were recruited from the Emergency Department at a Level I Trauma Center. Two weeks after the trauma, participants self-reported their experiences with racial discrimination and peritraumatic dissociation. At the six-month follow-up appointment, individuals underwent a clinical assessment of their PTSD symptoms.Results: Results of longitudinal mediation analyses showed that peritraumatic dissociation significantly mediated the effect of racial discrimination on PTSD symptoms, after controlling for age and lifetime trauma exposure. A secondary analysis was conducted to examine the moderating role of gender. Gender was not a significant moderator in the model.Conclusions: Findings show that racial discrimination functions as a stressor that impacts how individuals respond to other traumatic events. The novel results suggest a mechanism that explains the relationship between racial discrimination and PTSD symptoms. These findings highlight the need for community spaces where Black Americans can process racial trauma and reduce the propensity to detach from daily, painful realities. Results also show that clinical intervention post-trauma must consider Black Americans' experiences with racial discrimination.


Peritraumatic dissociation operates as a mechanism through which racial discrimination predicts posttraumatic symptoms in an adult trauma sample.Racial discrimination functions as a stressor that increases the risk for trauma-related symptoms.The lived experiences of Black Americans elicit the use of emotional detachment strategies that may mitigate effects of racial discrimination but increase the risk for peritraumatic dissociation.


Assuntos
Racismo , Transtornos de Estresse Pós-Traumáticos , Humanos , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Transtornos Dissociativos/complicações , Acontecimentos que Mudam a Vida
15.
J Immigr Minor Health ; 25(6): 1382-1391, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37219746

RESUMO

Little is known about the impact of sociocultural stressors such as acculturative stress on self-rated health among Hispanics. We aimed to examine (a) associations between acculturative stress and self-rated health, and (b) the moderating effects of the community of settlement (i.e., Maricopa County, AZ and Miami-Dade County, FL) and social support on the association between acculturative stress and self-rated health. A hierarchical multiple regression model and moderation analyses were conducted using a cross-sectional sample of 200 Hispanic emerging adults from Arizona and Florida. Findings indicate that higher levels of pressure to acculturate are associated with lower levels of self-rated health. Community of settlement functioned as a moderator whereby pressure to acculturate was only associated with lower levels of self-rated health in Maricopa County. Lastly, a three-way interaction indicated that emotional social support mitigated the association between pressure to acculturate and self-rated health in Maricopa County. This study highlights the importance of accounting for community of settlement when examining associations between acculturative stress and health-related outcomes. A finding that may have implications for interventions is that social support may help to counteract the effects of acculturative stress.


Assuntos
Aculturação , Hispânico ou Latino , Estresse Psicológico , Adulto , Humanos , Estudos Transversais , Florida , Hispânico ou Latino/psicologia , Apoio Social , Meio Social , Autorrelato
16.
J Community Psychol ; 51(6): 2355-2371, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35243656

RESUMO

A framework termed "the citizenship shield" is introduced to conceptualize how legal protections buffer against negative health outcomes among Latinx immigrants in the United States. In this study, we tested the citizenship shield framework in the context of the disproportionate impact of the COVID-19 pandemic on Latinx immigrants. We investigated the connection between immigration status, discrimination, food insecurity, and negative health outcomes. Analyses involved testing mediation and moderation models among a community-based sample of 536 Latinx immigrants holding five statuses (i.e., U.S. citizenship, permanent residency, Deferred Action for Childhood Arrivals, undocumented, and temporary status). Results suggested that food insecurity mediated the link between discrimination and negative impacts from the pandemic for Latinx immigrants across all statuses. Follow up analyses suggested that two of the three paths were moderated by immigration status. This research provides novel, important data to inform health interventions and federal policy targeted for the most vulnerable immigrants in the United States.


Assuntos
COVID-19 , Emigrantes e Imigrantes , Criança , Humanos , Cidadania , Emigração e Imigração , Insegurança Alimentar , Hispânico ou Latino , Avaliação de Resultados em Cuidados de Saúde , Pandemias , Estados Unidos , Discriminação Social
17.
Semin Ultrasound CT MR ; 43(6): 476-489, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36462807

RESUMO

Although the liver may present a range of congenital anomalies, often involving shape irregularities or the number of lobules, less common variations include the presence of accessory liver lobes (ALL), consisting of a supernumerary lobe of normal hepatic parenchyma in continuity with the liver. This paper reviews the embryology, frequency, anatomy, and types of ALL. Furthermore, we describe computed tomography and magnetic resonance imaging findings in a range of such cases, including those simulating disease or presenting with complications. Knowledge about ALL may facilitate imaging interpretation of such alterations, avoiding inappropriate additional work-up and unnecessary interventions.


Assuntos
Fígado , Radiologistas , Humanos , Fígado/diagnóstico por imagem , Tomografia Computadorizada por Raios X
18.
Environ Entomol ; 51(2): 370-377, 2022 04 22.
Artigo em Inglês | MEDLINE | ID: mdl-35149874

RESUMO

Land use changes from native vegetation to agriculture, livestock grazing, and urban development are among the main problems related to biodiversity loss worldwide. In this paper we evaluate how land use changes (eucalypt plantation and pasture) affect the richness and assemblage of wasps (Braconidae, Ichneumonidae, Pompilidae, and Vespidae), in comparison with nearby areas with native vegetation in the Cerrado. Specimens were collected at six points, with two Malaise traps at each location. The collections were performed monthly for 10 d, for 12 mo. A total of 773 hymenopterans of the selected groups were collected, representing 253 species or morphospecies. Richness of the families Ichneumonidae and Pompilidae between the areas did not present significant differences. For the families Braconidae and Vespidae, the richness was greater in the eucalypt plantation and pasture areas compared to the native area. Species composition in the native habitat was different from either of the managed habitats in the studied environment. Furthermore, the composition of wasps in native areas varied less throughout the sampling campaigns when compared with the pasture and eucalyptus sites. In native areas, 85 exclusive morphospecies were found. Thus, changes in land use may cause changes in the composition of wasp species, since areas with native vegetation presented more heterogeneous and stable environments than the other land uses. The maintenance of native areas, even if close to planted forest and/or pasture areas, could be the best way to combine forest productivity with biodiversity conservation.


Assuntos
Vespas , Agricultura , Animais , Biodiversidade , Ecossistema , Florestas , Humanos
19.
JAMA Netw Open ; 5(1): e2144759, 2022 01 04.
Artigo em Inglês | MEDLINE | ID: mdl-35072718

RESUMO

Importance: For Black US residents, experiences of racial discrimination are still pervasive and frequent. Recent empirical work has amplified the lived experiences and narratives of Black people and further documented the detrimental effects of racial discrimination on both mental and physical health; however, there is still a need for further research to uncover the mechanisms connecting experiences of racial discrimination with adverse health outcomes. Objective: To examine neurobiological mechanisms that may offer novel insight into the association of racial discrimination with adverse health outcomes. Design, Setting, and Participants: This cross-sectional study included 102 Black adults who had recently experienced a traumatic injury. In the acute aftermath of the trauma, participants underwent a resting-state functional magnetic resonance imaging scan. Individuals were recruited from the emergency department at a Midwestern level 1 trauma center in the United States between March 2016 and July 2020. Data were analyzed from February to May 2021. Exposures: Self-reported lifetime exposure to racial discrimination, lifetime trauma exposure, annual household income, and current posttraumatic stress disorder (PTSD) symptoms were evaluated. Main Outcomes and Measures: Seed-to-voxel analyses were conducted to examine the association of racial discrimination with connectivity of salience network nodes (ie, amygdala and anterior insula). Results: A total of 102 individuals were included, with a mean (SD) age of 33 (10) years and 58 (57%) women. After adjusting for acute PTSD symptoms, annual household income, and lifetime trauma exposure, greater connectivity between the amygdala and thalamus was associated with greater exposure to discrimination (t(97) = 6.05; false discovery rate (FDR)-corrected P = .03). Similarly, racial discrimination was associated with greater connectivity between the insula and precuneus (t(97) = 4.32; FDR-corrected P = .02). Conclusions and Relevance: These results add to the mounting literature that racial discrimination is associated with neural correlates of vigilance and hyperarousal. The study findings extend this theory by showing that this association is apparent even when accounting for socioeconomic position, lifetime trauma, and symptoms of psychological distress related to an acute trauma.


Assuntos
Tonsila do Cerebelo/fisiopatologia , População Negra/psicologia , Córtex Cerebral/fisiopatologia , Regulação Emocional/fisiologia , Trauma Psicológico/fisiopatologia , Transtornos de Estresse Pós-Traumáticos/diagnóstico por imagem , Adulto , Tonsila do Cerebelo/diagnóstico por imagem , Córtex Cerebral/diagnóstico por imagem , Estudos Transversais , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Trauma Psicológico/diagnóstico por imagem , Índice de Gravidade de Doença , Índices de Gravidade do Trauma , Estados Unidos
20.
Cultur Divers Ethnic Minor Psychol ; 28(2): 248-258, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34735170

RESUMO

OBJECTIVES: Person-centered analysis was used to examine profiles of acculturation and acculturative stress among Mexican-descent adults in relation to depression. It was hypothesized that identified profiles would support multiple acculturation styles, that acculturation profiles would differentially relate to acculturative stress dimensions, and that those profiles with greater Latinx acculturation and lower acculturative stress would report less severe depression. METHOD: Mexican-descent Latinx adults (n = 230) completed self-report measures of Latinx and Anglo acculturation, acculturative stress, and depression symptom severity. Latent profile analysis was used to derive acculturation-acculturative stress profiles. RESULTS: Three distinct profiles emerged. One profile was notable for bicultural acculturation with traditional Latinx acculturative stress. The two remaining profiles reported similarly high traditional Latinx acculturation, but differed in acculturative stress, such that one profile was elevated in one dimension of acculturative stress, whereas the other reported elevated acculturative stress across multiple domains. Participants in this last profile also reported significantly greater depression. CONCLUSIONS: The findings provide further evidence of the beneficial role of heritage-culture acculturation and suggest that focused versus generalized forms of acculturative stress may be a distinguishing component related to depression. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Aculturação , Depressão , Adulto , Humanos , México , Estresse Psicológico
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