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1.
J Virol ; 98(2): e0149423, 2024 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-38294251

RESUMO

Influenza B viruses (IBV) cocirculate with influenza A viruses (IAV) and cause periodic epidemics of disease, yet antibody and cellular responses following IBV infection are less well understood. Using the ferret model for antisera generation for influenza surveillance purposes, IAV resulted in robust antibody responses following infection, whereas IBV required an additional booster dose, over 85% of the time, to generate equivalent antibody titers. In this study, we utilized primary differentiated ferret nasal epithelial cells (FNECs) which were inoculated with IAV and IBV to study differences in innate immune responses which may result in differences in adaptive immune responses in the host. FNECs were inoculated with IAV (H1N1pdm09 and H3N2 subtypes) or IBV (B/Victoria and B/Yamagata lineages) and assessed for 72 h. Cells were analyzed for gene expression by quantitative real-time PCR, and apical and basolateral supernatants were assessed for virus kinetics and interferon (IFN), respectively. Similar virus kinetics were observed with IAV and IBV in FNECs. A comparison of gene expression and protein secretion profiles demonstrated that IBV-inoculated FNEC expressed delayed type-I/II IFN responses and reduced type-III IFN secretion compared to IAV-inoculated cells. Concurrently, gene expression of Thymic Stromal Lymphopoietin (TSLP), a type-III IFN-induced gene that enhances adaptive immune responses, was significantly downregulated in IBV-inoculated FNECs. Significant differences in other proinflammatory and adaptive genes were suppressed and delayed following IBV inoculation. Following IBV infection, ex vivo cell cultures derived from the ferret upper respiratory tract exhibited reduced and delayed innate responses which may contribute to reduced antibody responses in vivo.IMPORTANCEInfluenza B viruses (IBV) represent nearly one-quarter of all human influenza cases and are responsible for significant clinical and socioeconomic impacts but do not pose the same pandemic risks as influenza A viruses (IAV) and have thus received much less attention. IBV accounts for greater severity and deaths in children, and vaccine efficacy remains low. The ferret can be readily infected with human clinical isolates and demonstrates a similar course of disease and immune responses. IBV, however, generates lower antibodies in ferrets than IAV following the challenge. To determine whether differences in initial innate responses following infection may affect the development of robust adaptive immune responses, ferret respiratory tract cells were isolated, infected with IAV/IBV, and compared. Understanding the differences in the initial innate immune responses to IAV and IBV may be important in the development of more effective vaccines and interventions to generate more robust protective immune responses.


Assuntos
Imunidade Adaptativa , Células Epiteliais , Furões , Imunidade Inata , Vírus da Influenza A , Vírus da Influenza B , Interferons , Mucosa Nasal , Animais , Criança , Humanos , Anticorpos Antivirais/análise , Anticorpos Antivirais/biossíntese , Anticorpos Antivirais/imunologia , Modelos Animais de Doenças , Células Epiteliais/citologia , Células Epiteliais/imunologia , Células Epiteliais/virologia , Furões/imunologia , Furões/virologia , Vírus da Influenza A/classificação , Vírus da Influenza A/crescimento & desenvolvimento , Vírus da Influenza A/imunologia , Vírus da Influenza A Subtipo H1N1/imunologia , Vírus da Influenza A Subtipo H3N2/imunologia , Vírus da Influenza B/classificação , Vírus da Influenza B/crescimento & desenvolvimento , Vírus da Influenza B/imunologia , Vacinas contra Influenza , Influenza Humana/virologia , Interferons/imunologia , Mucosa Nasal/citologia , Mucosa Nasal/imunologia , Mucosa Nasal/virologia , Linfopoietina do Estroma do Timo/genética , Linfopoietina do Estroma do Timo/imunologia , Células Cultivadas
2.
Brief Bioinform ; 24(1)2023 01 19.
Artigo em Inglês | MEDLINE | ID: mdl-36526280

RESUMO

Graph neural networks based on deep learning methods have been extensively applied to the molecular property prediction because of its powerful feature learning ability and good performance. However, most of them are black boxes and cannot give the reasonable explanation about the underlying prediction mechanisms, which seriously reduce people's trust on the neural network-based prediction models. Here we proposed a novel graph neural network named iteratively focused graph network (IFGN), which can gradually identify the key atoms/groups in the molecule that are closely related to the predicted properties by the multistep focus mechanism. At the same time, the combination of the multistep focus mechanism with visualization can also generate multistep interpretations, thus allowing us to gain a deep understanding of the predictive behaviors of the model. For all studied eight datasets, the IFGN model achieved good prediction performance, indicating that the proposed multistep focus mechanism also can improve the performance of the model obviously besides increasing the interpretability of built model. For researchers to use conveniently, the corresponding website (http://graphadmet.cn/works/IFGN) was also developed and can be used free of charge.


Assuntos
Aprendizagem , Redes Neurais de Computação , Humanos , Pesquisadores
3.
Cereb Cortex ; 34(2)2024 01 31.
Artigo em Inglês | MEDLINE | ID: mdl-38300180

RESUMO

Psychophysical observations indicate that the spatial profile of visuospatial attention includes a central enhancement around the attentional focus, encircled by a narrow zone of reduced excitability in the immediate surround. This inhibitory ring optimally amplifies relevant target information, likely stemming from top-down frontoparietal recurrent activity modulating early visual cortex activations. However, the mechanisms through which neural suppression gives rise to the surrounding attenuation and any potential hemispheric specialization remain unclear. We used transcranial magnetic stimulation to evaluate the role of two regions of the dorsal attention network in the center-surround profile: the frontal eye field and the intraparietal sulcus. Participants performed a psychophysical task that mapped the entire spatial attentional profile, while transcranial magnetic stimulation was delivered either to intraparietal sulcus or frontal eye field on the right (Experiment 1) and left (Experiment 2) hemisphere. Results showed that stimulation of right frontal eye field and right intraparietal sulcus significantly changed the center-surround profile, by widening the inhibitory ring around the attentional focus. The stimulation on the left frontal eye field, but not left intraparietal sulcus, induced a general decrease in performance but did not alter the center-surround profile. Results point to a pivotal role of the right dorsal attention network in orchestrating inhibitory spatial mechanisms required to limit interference by surrounding distractors.


Assuntos
Lateralidade Funcional , Estimulação Magnética Transcraniana , Humanos , Lateralidade Funcional/fisiologia , Lobo Parietal/fisiologia , Lobo Frontal/fisiologia , Estimulação Luminosa/métodos , Imageamento por Ressonância Magnética , Mapeamento Encefálico
4.
Curr Issues Mol Biol ; 46(2): 1208-1218, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38392195

RESUMO

Gastric cancer (GC) persists as the fourth most prevalent cause of global cancer-related mortality, presenting a challenge due to the scarcity of available therapeutic strategies. Precision medicine is crucial not only in the treatment but also in the management of GC. We performed gene panel sequencing with Oncomine focus assay comprising 52 cancer-associated genes and MSI analysis in 100 case-matched gastric cancer cases. A comprehensive analysis of clinical and genetic characteristics was conducted on these genetic results and clinicopathological findings. Upon comparison of clinicopathological characteristics, significant differences between early gastric cancer (EGC) and advanced gastric cancer (AGC) were observed in tumor location (p = 0.003), Lauren classification (p = 0.015), T stage (p = 0.000), and N stage (p = 0.015). The six most frequently mutated genes were PIK3CA (29%, 10/35), ERBB2 (17%, 6/35), KRAS (14%, 5/35), ALK (6%, 2/35), ESR1 (6%, 2/35), and FGFR3 (6%, 2/35). Regarding genetic variation, there was a tendency for the N stage to be higher in GC patients with mutated genes (p = 0.014). The frequency of mutations in GC patients was statistically significantly higher in AGC (n = 24) compared to EGC (n = 11) (odds ratio, 2.792; 95% confidence interval, 1.113 to 7.007; p = 0.026). Six of the ten GC patients carrying mutated genes and exhibiting MSI were classified into intestinal-type and undifferentiated GC, with the location of the tumor being in the lower-third. Among these patients, five harbored mutated PIK3CA, while the remaining patient had a mutation in ALK. Conclusions: AGC patients more frequently exhibited alterations of PIK3CA, KRAS, and ERBB2 as somatic oncogenic drivers, and displayed a higher prevalence of cumulative genetic events, including increased rates of PIK3CA mutations, enhanced detection of immunotherapy biomarkers, and mutations of the ESR1 gene.

5.
Am J Hum Genet ; 108(5): 894-902, 2021 05 06.
Artigo em Inglês | MEDLINE | ID: mdl-33887195

RESUMO

Genomics researchers are increasingly interested in what constitutes effective engagement of individuals from underrepresented groups. This is critical for longitudinal projects needed to inform the implementation of precision medicine. Return of results is one opportunity for engagement. The aims of this study were to determine participant perspectives on optimal engagement strategies and priorities for return of results and the extent to which focus groups were an effective modality for gathering input on these topics. We conducted six professionally moderated focus groups with 49 participants in a genomics research study. Transcripts from audio-recorded sessions were coded by two researchers and themes were discussed with the wider research team. All groups raised the issue of mistrust. Individuals participated nonetheless to contribute their perspectives and benefit their community. Many group members preferred engagement modalities that are offered to all participants and allow them to share the nuances of their perspectives over the use of participant representatives and surveys. All groups created a consensus ranking for result return priorities. Results for life-threatening conditions were the highest priority to return, followed by those related to treatable conditions that affect physical or mental health. We advocate for engagement strategies that reach as many participants as possible and allow them to share their perspectives in detail. Such strategies are valued by participants, can be effective for developing return of results policies, and may help institutions become more trustworthy.


Assuntos
Negro ou Afro-Americano/genética , Negro ou Afro-Americano/psicologia , Genoma Humano/genética , Genômica/métodos , Participação do Paciente , Idoso , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Motivação , Confiança
6.
Breast Cancer Res Treat ; 203(2): 373-381, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37843776

RESUMO

OBJECTIVE: The aim of this study is to evaluate the clinicopathological features and prognostic significance of HER2 low, fibrotic focus (FF), and tumor-infiltrating lymphocytes (TILs) in patients with HER2-negative breast cancer. METHODS: We retrospectively reviewed the data of 293 patients with HER2-negative, stage I-II, invasive breast cancer of non-specific types. The HER2-negative cases were classified into HER2 low and HER2 0. Digital analysis of hematoxylin-eosin stained whole slide images was used to evaluate the FF expression. TILs were also evaluated using the Whole Slide Image. Furthermore, the association between HER2 low, FF, and TILs as well as their prognostic significance were analyzed. RESULTS: The study cohort included 178 cases (60.8%) with HER2 low and 115 cases (39.2%) with HER2 0. Older age, lower Nottingham histological grade (NHG), estrogen receptor (ER) positivity, progesterone receptor (PR) positivity, and hormone receptor (HR) positivity were all associated with HER2 low. FF was correlated with older age, intermediate and low NHG, vascular invasion, HR positivity, HER2 low status, high Ki67 expression, and low TILs. Univariate survival analysis showed that FF was significantly associated with shorter progression-free survival (PFS). Stratified analysis indicated that in the HR-negative and HR-positive groups, HER2 status and TILs did not affect PFS. DFS was longer in patients without FF compared to those with FF in the HR-positive (hazard ratio [HR] = 0.313) and HER2 low (HR = 0.272) groups. DFS was also significantly longer in patients without FF compared to those with FF in the HR-negative (HR = 0.069) and HER2 0 groups (HR = 0.129). CONCLUSION: The results indicated that the HER2 low status and the TILs expression did not impact prognosis. However, patients with FF exhibited distinct biological characteristics and prognostic significance, particularly in the HR-negative and HER2 0 groups. This provides a rationale for accurate diagnosis and treatment of HER2-negative breast cancer.


Assuntos
Neoplasias da Mama , Humanos , Feminino , Prognóstico , Estudos Retrospectivos , Receptor ErbB-2/metabolismo , Linfócitos do Interstício Tumoral , Intervalo Livre de Doença
7.
J Synchrotron Radiat ; 31(Pt 4): 690-697, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38843002

RESUMO

A reliable `in situ' method for wavefront sensing in the soft X-ray domain is reported, developed for the characterization of rotationally symmetric optical elements, like an ellipsoidal mirror shell. In a laboratory setup, the mirror sample is irradiated by an electron-excited (4.4 keV), micrometre-sized (∼2 µm) fluorescence source (carbon Kα, 277 eV). Substantially, the three-dimensional intensity distribution I(r) is recorded by a CCD camera (2048 × 512 pixels of 13.5 µm) at two positions along the optical axis, symmetrically displaced by ±21-25% from the focus. The transport-of-intensity equation is interpreted in a geometrical sense from plane to plane and implemented as a ray tracing code, to retrieve the phase Φ(r) from the radial intensity gradient on a sub-pixel scale. For reasons of statistical reliability, five intra-/extra-focal CCD image pairs are evaluated and averaged to an annular two-dimensional map of the wavefront error {\cal W}. In units of the test wavelength (C Kα), an r.m.s. value \sigma_{\cal{W}} = ±10.9λ0 and a peak-to-valley amplitude of ±31.3λ0 are obtained. By means of the wavefront, the focus is first reconstructed with a result for its diameter of 38.4 µm, close to the direct experimental observation of 39.4 µm (FWHM). Secondly, figure and slope errors of the ellipsoid are characterized with an average of ±1.14 µm and ±8.8 arcsec (r.m.s.), respectively, the latter in reasonable agreement with the measured focal intensity distribution. The findings enable, amongst others, the precise alignment of axisymmetric X-ray mirrors or the design of a wavefront corrector for high-resolution X-ray science.

8.
Ann Surg Oncol ; 31(7): 4498-4511, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38570377

RESUMO

BACKGROUND: The BREAST-Q real-time engagement and communication tool (REACT) was developed to aid with BREAST-Q score interpretation and guide patient-centered care. OBJECTIVE: The purpose of this qualitative study was to examine the perspectives of patients and providers on the design, functionality, and clinical utility of REACT and refine the REACT based on their recommendations. METHODS: We conducted three patient focus groups with women who were at least 6 postoperative months from their postmastectomy breast reconstruction, and two provider focus groups with plastic surgeons, breast surgeons, and advanced practice providers. Focus groups were audio-taped, transcribed verbatim, and analyzed thematically. RESULTS: A total of 18 breast reconstruction patients and 14 providers participated in the focus groups. Themes identified by thematic analysis were organized into two categories: (1) design and functionality, and (2) clinical utility. On the design and functionality of REACT, four major themes were identified: visual appeal and usefulness; contextualizing results; ability to normalize patients' experiences, noting participants' concerns; and suggested modifications. On the clinical utility of REACT, three major themes were identified: potential to empower patients to communicate with their providers; increase patient and provider motivation to engage with the BREAST-Q; and effective integration into clinical workflow. CONCLUSION: Patients and providers in this qualitative study indicated that with some modifications, REACT has a great potential to elevate the clinical utility of the BREAST-Q by enhancing patient-provider communication that can lead to patient-centered, clinically relevant action recommendations based on longitudinal BREAST-Q scores.


Assuntos
Neoplasias da Mama , Grupos Focais , Mamoplastia , Mastectomia , Assistência Centrada no Paciente , Pesquisa Qualitativa , Humanos , Feminino , Neoplasias da Mama/cirurgia , Neoplasias da Mama/psicologia , Pessoa de Meia-Idade , Mastectomia/psicologia , Mamoplastia/psicologia , Mamoplastia/métodos , Comunicação , Relações Médico-Paciente , Adulto , Prognóstico , Seguimentos , Idoso , Participação do Paciente , Satisfação do Paciente
9.
BMC Cancer ; 24(1): 783, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38951760

RESUMO

BACKGROUND: The number of cancer survivors has increased in recent decades, and the majority of them suffer from sequelae of their disease and treatment. This study, which is part of the larger research project OPTILATER, aims to explore different aspects of care services for long-term survivors (≥ 5 years after initial cancer diagnosis) in Germany. The study places an emphasis on the situation of people from different age groups, with different socio-demographic and cultural backgrounds, and sexually and gender diverse individuals. METHODS: To investigate experiences related to follow-up care, focus groups (n = 2) will be conducted with members of patient advisory councils and advocacy groups, representatives of communities, healthcare workers and networks, as well as members of Associations of Statutory Health Insurance Physicians. Guided interviews will be carried out with patients and relatives (n = 40) to investigate needs, barriers and obstacles in terms of follow-up care. On this basis, additional focus groups (n = 2) will be carried out to derive possible scenarios for improving the consideration of needs. Focus groups and interviews will follow a semi-structured format and will be analysed content-analytically. Focus groups and interviews will be conducted online, recorded, transcribed, and analysed independently by two persons. DISCUSSION: The qualitative approach is considered suitable because of the exploratory research aims. The identification of experiences and barriers can reveal disparities and optimization potential in the care of long-term cancer survivors.


Assuntos
Sobreviventes de Câncer , Grupos Focais , Neoplasias , Pesquisa Qualitativa , Humanos , Sobreviventes de Câncer/psicologia , Feminino , Masculino , Neoplasias/terapia , Neoplasias/psicologia , Alemanha , Necessidades e Demandas de Serviços de Saúde , Pessoa de Meia-Idade , Adulto , Idoso
10.
Vox Sang ; 119(1): 16-26, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37861453

RESUMO

BACKGROUND AND OBJECTIVES: Iron supplementation is an effective strategy to mitigate donation-induced iron deficiency in blood donors. However, evidence on the perception of individuals involved in blood donation on iron supplementation as a blood service policy is lacking. This study aimed to evaluate the knowledge and perception of whole blood donors (donors), blood collection staff (collection staff) and donor physicians (physicians) regarding donation-induced iron loss and iron supplementation. MATERIALS AND METHODS: Online focus group discussions had four to six participants and followed a structured questioning approach. All participants had to be fluent in Dutch to participate, and donors had donated at least five times. Sixteen donors, eight collection staff members and four physicians participated in this study. Recordings were transcribed, coded and analysed using a grounded theory approach. RESULTS: Awareness of donation-induced iron loss was limited in donors. Donors and physicians were predominantly positive towards iron supplementation; the primary motivator for donors was to prevent deferral and reduce iron-deficiency-related symptoms. Improving donor health was the main argument for physicians to advocate iron supplementation. Staff had a critical view on iron supplementation as a policy, as they perceived it as unethical and possibly ineffective. A knowledge gap might underlie their concerns. CONCLUSION: Most individuals involved in blood donation are positive towards iron supplementation as a blood service policy. If implemented, guidance and monitoring is desired and adequate education of all stakeholders is required.


Assuntos
Deficiências de Ferro , Ferro , Humanos , Doadores de Sangue , Suplementos Nutricionais , Percepção
11.
Int J Behav Nutr Phys Act ; 21(1): 25, 2024 Feb 29.
Artigo em Inglês | MEDLINE | ID: mdl-38424551

RESUMO

BACKGROUND: Engagement in before-school physical activity can potentially enhance health and learning-related outcomes for children and adolescents. However, influencing factors and stakeholder perceptions of before-school physical activity remain under-researched. This qualitative study aimed to examine stakeholder perceptions of: a) the suitability of the before-school segment for physical activity, b) barriers and facilitators associated with before-school physical activity, and c) strategies for schools to support before-school physical activity. METHODS: Twelve focus groups and one interview were conducted with 38 participants from a range of school stakeholder groups-students, parents, teachers, school leaders, external physical activity providers, and school health and physical activity experts. Focus groups were analysed using template analysis, guided by a social-ecological model. RESULTS: Stakeholders perceived before-school physical activity as valuable, for reasons including perceptions of meaningful contributions to students' cognitive functioning, classroom behaviours, and wellbeing. Factors influencing before-school physical activity were identified across multiple social-ecological levels, including the critical role of school leadership support, availability of facilities, and provision of qualified supervision. Proposed strategies highlighted the need for sustainable design, contextual relevance, and community engagement in before-school initiatives. Additionally, communication of the manifold benefits identified by stakeholders was suggested as a means to drive support and engagement in before-school physical activity. CONCLUSIONS: This study provides insight for schools seeking to enhance opportunities for physical activity in the before-school hours and may inform future intervention research on the subject, taking into account its multi-faceted influences and the need for context-specific strategies.


Assuntos
Exercício Físico , Instituições Acadêmicas , Criança , Adolescente , Humanos , Exercício Físico/psicologia , Grupos Focais , Pesquisa Qualitativa , Estudantes/psicologia
12.
Infection ; 52(2): 535-543, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38060067

RESUMO

PURPOSE: The oral cavity and, in particular, potential oral foci might pose a risk of periprosthetic joint infection (PJI). The aim of this cohort study was to determine whether practical preoperative dental screening would reduce the prevalence of early PJI in the first month after surgery. METHODS: Patients attending a specialized endoprosthesis implantation clinic between 2018 and 2022 were recruited. Two groups were examined. The test group consisted of patients attending the clinic between 2020 and 2022 and who were referred to their family dentist using a standardized form. The comparison group consisted of patients who were treated in the clinic between 2018 and 2020. They were not referred to their family dentist. The two groups were compared for the prevalence of PJI. Univariate analysis followed by multiple logistic regression was performed to confirm risk factors for PJI in this cohort. RESULTS: 2560 individuals (test group: 1227, comparison group: 1333) were included. The prevalence of PJI was significantly lower in the test group (0.8% vs. 1.8%, p = 0.04). Multiple logistic regression with PJI as the dependent variable showed that a dental referral was a strong predictor of a lower prevalence of PJI (OR: 0.43, CI95 0.205-0.917, p = 0.03). Male gender was also strongly associated with a higher frequency of PJI (OR: 2.68, CI95 1.32-5.42, p = 0.01). Age (OR: 1.06, CI95 1.01-1.10, p = 0.01) and BMI (OR: 1.11, CI95 1.05-1.17, p < 0.01) had little effect on the risk of PJI. CONCLUSION: Dental referral using a standardized form can reduce the prevalence of early PJI. Accordingly, orthopedists and dentists should collaborate in this practical way.


Assuntos
Artrite Infecciosa , Artroplastia de Quadril , Artroplastia do Joelho , Infecções Relacionadas à Prótese , Humanos , Masculino , Estudos de Coortes , Artroplastia do Joelho/efeitos adversos , Estudos Retrospectivos , Articulação do Joelho , Fatores de Risco , Artrite Infecciosa/complicações , Próteses e Implantes , Infecções Relacionadas à Prótese/diagnóstico , Infecções Relacionadas à Prótese/epidemiologia , Infecções Relacionadas à Prótese/prevenção & controle , Artroplastia de Quadril/efeitos adversos
13.
Pediatr Blood Cancer ; 71(3): e30816, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38110847

RESUMO

BACKGROUND: Children treated with stem cell transplant (SCT) are routinely hospitalized for long periods where they are exposed to significant sleep and circadian disruptions. As nurses play a primary role in symptom management during SCT, we sought to understand their perspective on patient sleep and circadian disruptions, perceived barriers to a good sleep and circadian environment, and suggestions for improvement. PROCEDURE: Four focus groups were conducted with pediatric SCT nurses (N = 25 participants). A semistructured focus group guide was administered, with the discussions recorded and transcribed. A multistage thematic analysis combining prefigured and emergent dimensions was conducted. Our analysis focused on drawing comparisons within and across focus groups to understand the unique work experiences that participants had related to the patient's sleep and circadian environment. RESULTS: Three key themes emerged. First, nurses expressed a high awareness of how disruptive the hospital environment is for patients. Second, nurses described their extensive efforts to try to minimize the impact of these disruptions. Finally, they provided clear recommendations for how to improve upon these concerns, along with barriers that they perceive could impede implementation. CONCLUSIONS: Front-line caregivers on a pediatric SCT unit describe key contributors to sleep/circadian disturbances for patients. Within the constraints of the considerable medical needs of this patient population and the physical room/hospital environment, nurses strive to minimize these disruptions to the best of their ability. It is crucial that hospitals assess and remediate these disturbances for these children that have important implications for overall health.


Assuntos
Pacientes Internados , Sono , Humanos , Criança , Grupos Focais , Cuidadores , Hospitais
14.
Exp Brain Res ; 242(6): 1399-1409, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38568333

RESUMO

Previous studies have found that emotional states affect the extent of attention, and the effect has been explained by adaptive views. If the adaptive explanations are true, emotion should modulate attentional focus toward a peripheral stimulus. The present study investigated if emotion affects the focus of attention toward a peripheral target in a visual search paradigm with event-related brain potential (ERP) measurement. In each trial of the experiment, participants performed a visual search task after an emotion (unpleasant, neutral, or pleasant) was induced by presenting an international affective picture system (IAPS) image. We measured N2pc, which is an ERP index reflecting attentional focus toward a peripheral target in a visual search, and compared the amplitudes among the emotion conditions. According to the adaptive view of emotional effects on cognition, this study hypothesized that unpleasant emotion would enhance the focus of attention, and pleasant emotion would inhibit it. These hypotheses predicted that N2pc amplitude would increase with unpleasant emotion and decrease with pleasant emotion. However, this study obtained inconsistent results; N2pc amplitude decreased in the unpleasant condition, and there was no significant effect of pleasant emotion on the ERP. The results suggest that unpleasant emotion inhibited the attentional focusing process. This is the first report to examine how emotion modulates the focus of attention toward a peripheral target in a visual search by using ERP. The findings contribute to understanding the relationship between emotion and cognition.


Assuntos
Atenção , Eletroencefalografia , Emoções , Potenciais Evocados , Humanos , Atenção/fisiologia , Feminino , Masculino , Adulto Jovem , Emoções/fisiologia , Potenciais Evocados/fisiologia , Adulto , Estimulação Luminosa/métodos , Percepção Visual/fisiologia , Tempo de Reação/fisiologia
15.
Neurourol Urodyn ; 43(4): 849-861, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38451032

RESUMO

AIMS: This paper explores Black women's perspectives on bladder health using a social-ecological conceptual framework and life course perspective. METHODS: We conducted a directed content analysis of data from the Study of Habits, Attitudes, Realities, and Experiences (SHARE), a focus group study by the Prevention of Lower Urinary Tract Symptoms (PLUS) Research Consortium. Analysis was conducted on data from five focus groups and a member-checking session where all participants self-identified as Black or African American. RESULTS: Forty-two participants aged 11-14 or 45+ years reported life course experiences with their bladder. The intersection of race and gender was the lens through which participants viewed bladder health. Participants' accounts of their perspectives on bladder health explicitly and implicitly revealed structural racism as an explanatory overarching theme. Participants described (a) historically-rooted and still pervasive practices of discrimination and segregation, engendering inequitable access to quality medical care and public facilities, (b) institutional barriers to toileting autonomy in educational and occupational settings, promoting unhealthy voiding habits, (c) internalized expectations of Black women's stereotyped role as family caregiver, compromising caregiver health, (d) lack of reliable information on bladder health, leading to unhealthy bladder behaviors, and (e) potentially stress-related comorbid chronic conditions and associated medication use, causing or exacerbating bladder problems. CONCLUSIONS: Bladder health promotion interventions should address social-ecological and life course factors shaping Black women's bladder health, including social and structural barriers to accessing equitable health information and medical care.


Assuntos
Acontecimentos que Mudam a Vida , Bexiga Urinária , Humanos , Feminino , Meio Social , Saúde da Mulher , Promoção da Saúde
16.
Int J Equity Health ; 23(1): 135, 2024 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-38965627

RESUMO

BACKGROUND: The concept of collaborative approaches involves community residents in joint decision-making processes to maintain or enhance their material and social conditions. During COVID-19, public services saw the benefits of actively collaborating with communities and involving residents in decision-making processes. As communities have resources and assets, they are well-placed to contribute to developing local health and wellbeing initiatives. An interdisciplinary and nationally funded three-phase research programme, "Mobilising community assets to tackle health inequalities", was established with the objective of utilising local, cultural, and natural assets to support health and wellbeing. The current study aimed to synthesise evidence collected by research teams awarded funding in phase one of the programme, comprising academic and non-academic, health and social care, voluntary and community partners. METHODS: Ten online focus groups were conducted with research teams from across the UK exploring the successes and challenges of partnership working to tackle health inequalities using collaborative approaches to community-based research. Eight focus group questions were split between partnership working and health inequalities. RESULTS: Thematic and content analysis produced 185 subthemes from which 12 themes were identified. Major themes representing an above average number of coded responses were research evidence; funding; relationships with partners; health inequalities and deprivation; community involvement; and health service and integrated care systems. Minor themes were link workers and social prescribing; training and support; place-based factors; longevity of programmes; setting up and scaling up programmes; and mental health. CONCLUSIONS: Successes included employing practice-based and arts-based methods, being part of a research project for those not normally involved in research, sharing funding democratically, building on established relationships, and the vital role that local assets play in involving communities. Challenges involved a lack of sustainable financial support, the short-term nature of funding, inconsistencies in reaching the poorest people, obtaining the right sort of research evidence, making sufficient research progress, building relationships with already over-burdened health care staff, and redressing the balance of power in favour of communities. Despite the challenges, participants were mainly optimistic that collective approaches and meaningful co-production would create opportunities for future research partnerships with communities.


Assuntos
COVID-19 , Grupos Focais , Humanos , COVID-19/epidemiologia , Pesquisa Participativa Baseada na Comunidade , Comportamento Cooperativo , Reino Unido , SARS-CoV-2 , Disparidades nos Níveis de Saúde , Desigualdades de Saúde
17.
Nicotine Tob Res ; 2024 Feb 29.
Artigo em Inglês | MEDLINE | ID: mdl-38422381

RESUMO

INTRODUCTION: People with chronic hepatitis C virus (HCV; PWHC) use cigarettes at a much higher prevalence than other individuals, and smoking can exacerbate the harms specifically related to HCV (e.g., hepatocellular carcinoma). Little is known about factors related to cigarette use among PWHC. This study examined focus group data to explore beliefs and behaviors related to cigarette use among PWHC. METHODS: Qualitative data from two focus groups of PWHC reporting current cigarette smoking (n=15, 60% male) were collected using a semi-structured interview guide. Participants were asked about reasons for smoking, barriers to quitting smoking, and the relationship of HCV to smoking. Focus groups were transcribed verbatim and coded in NVivo 12. Four coders examined themes that arose in the focus groups. Common themes are described and supported with quotes. RESULTS: Reasons for smoking included addiction to cigarettes, stress, substituting cigarettes for other drugs, and social norms, while reasons for quitting included health and being free from the use of all drugs. Barriers to quitting included concerns about coping with stress, weight gain, and having a lack of support for and education about quitting. Many participants believed there was a link between smoking and HCV and discussed smoking in relation to the stress of an HCV diagnosis. CONCLUSIONS: Participants identified both HCV-related and non-HCV-related aspects of cigarette smoking and cessation-related behaviors that could be targeted in cessation treatment. More research is needed to identify the best treatment approaches that reduce the significant medical consequences of cigarette use among PWHC. IMPLICATIONS: People with chronic hepatitis C virus (HCV; PWHC) smoke cigarettes at a high prevalence, yet little is known about their smoking behaviors. Moreover, there are no cessation treatments targeting PWHC. This is the first study to collect focus group data from PWHC who smoke in order to identify reasons for cigarette use (HCV-related and non-HCV-related), and motivators and barriers to quitting cigarettes. PWHC report using cigarettes to cope with the stress of an HCV diagnosis and to celebrate HCV cure. These findings suggest there are specific times during the HCV care continuum where providers can aid with cessation efforts.

18.
Crit Care ; 28(1): 232, 2024 Jul 11.
Artigo em Inglês | MEDLINE | ID: mdl-38992709

RESUMO

BACKGROUND: Conflicts with patients and relatives occur frequently in intensive care units (ICUs), driven by factors that are intensified by critical illness and its treatments. A majority of ICU healthcare professionals have experienced verbal and/or physical violence. There is a need to understand how healthcare professionals in ICUs experience and manage this workplace violence. METHODS: A qualitative descriptive analysis of four hospitals in Sweden was conducted using semi-structured focus-group interviews with ICU healthcare professionals. RESULTS: A total of 34 participants (14 nurses, 6 physicians and 14 other staff) were interviewed across the four hospitals. The overarching theme: "The paradox of violence in healthcare" illustrated a normalisation of violence in ICU care and indicated a complex association between healthcare professionals regarding violence as an integral aspect of caregiving, while simultaneously identifying themselves as victims of this violence. The healthcare professionals described being poorly prepared and lacking appropriate tools to manage violent situations. The management of violence was therefore mostly based on self-taught skills. CONCLUSIONS: This study contributes to understanding the normalisation of violence in ICU care and gives a possible explanation for its origins. The paradox involves a multifaceted approach that acknowledges and confronts the structural and cultural dimensions of violence in healthcare. Such an approach will lay the foundations for a more sustainable healthcare system.


Assuntos
Grupos Focais , Unidades de Terapia Intensiva , Pesquisa Qualitativa , Violência no Trabalho , Humanos , Unidades de Terapia Intensiva/organização & administração , Unidades de Terapia Intensiva/estatística & dados numéricos , Grupos Focais/métodos , Suécia , Violência no Trabalho/psicologia , Violência no Trabalho/estatística & dados numéricos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Pessoal de Saúde/psicologia , Pessoal de Saúde/estatística & dados numéricos , Atitude do Pessoal de Saúde
19.
Ultrasound Obstet Gynecol ; 63(2): 237-242, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-37519218

RESUMO

OBJECTIVE: To assess the reproducibility of ultrasound measurements of fetal biometry using a 'focus point' to assist the acquisition of the relevant plane. METHODS: This was a study of 80 women with a singleton non-anomalous pregnancy who attended University College London Hospital, London, UK, between 18 and 37 weeks' gestation. Planes to measure head circumference (HC), abdominal circumference (AC) and femur length (FL) were obtained four times by two different sonographers with different levels of experience, who were blinded to one another; the first set of images was obtained with reference to a standard image, and the second set of images was obtained using the focus point technique. The focus point was defined as a unique fetal anatomical landmark in each plane (cavum septi pellucidi for HC, two-thirds of the umbilical vein for AC and one of the two extremities of the diaphysis for FL). Once identified, the focus point was maintained in view while the sonographer rotated the probe along three axes (x, y, z) to acquire the relevant plane. Sonographers were either in training or had > 3000 scans worth of experience. Intra- and interobserver reproducibility were assessed using Bland-Altman plots, and absolute values and percentages for mean difference and 95% limits of agreement (LoA) were reported. RESULTS: Overall reproducibility was good, with all 95% LoA < 8%. Reproducibility was improved by use of the focus point compared with the standard technique for both intraobserver comparison (95% LoA, < 4% vs < 6%) and interobserver comparison (95% LoA, < 7% vs < 8%). These findings were independent of sonographer seniority and plane acquired. CONCLUSIONS: Reproducibility of fetal biometry assessment is improved with use of the focus point for plane acquisition, regardless of sonographer experience. We propose that this method should be implemented in clinical practice and training programs in fetal biometry. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.


Assuntos
Desenvolvimento Fetal , Ultrassonografia Pré-Natal , Gravidez , Feminino , Humanos , Reprodutibilidade dos Testes , Ultrassonografia Pré-Natal/métodos , Variações Dependentes do Observador , Idade Gestacional , Biometria/métodos
20.
Qual Life Res ; 2024 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-38888673

RESUMO

AIM: This qualitative focus group study aims to asses cerclage-related symptoms, the impact of a cerclage on daily functioning and patient perspectives of their healthcare experience. This study extends beyond the current focus on surgical and obstetric outcomes of a cerclage, thereby contributing to a more comprehensive understanding of the challenges faced by individuals in the context of extreme preterm birth and fetal loss and the impact of a cerclage on multiple facets in life. METHODS: Participants were recruited from the Amsterdam University Medical Center, Amsterdam, the Netherlands or via the website of a Dutch patient organization for (extreme) preterm birth. Eligible participants were ≥ 18 years old with a previous vaginal and/or abdominal cerclage with a subsequent delivery at ≥ 34 weeks of gestation with neonatal survival. Two focus group discussions (FGD) were performed. A predefined format was used, which was identical for both the vaginal and abdominal cerclage group. The International Classification of Functioning, Disability and Health (ICF-DH) was used to provide structure. Outcomes were a broad range of participants reported perspectives on physical, emotional, and social-related quality of life. RESULTS: In the Vaginal Cerclage Group (VCG) and Abdominal Cerclage Group (ACG), respectively, 11 and 8 participants were included. Fear for a subsequent pregnancy loss was the most limiting factor to perform daily activities during pregnancy in all participants with a cerclage. Fear to conceive again because of prior second-trimester fetal loss was experienced by 27% in the VCG and 13% in the ACG. The majority of participants experienced a reduction in anxiety after placement of their cerclage (VCG = 64%, ACG = 75%). Decreased mobility/bedrest (VCG = 100%, ACG = 75%) and blood loss (VCG = 55%, ACG = 13%) were frequently mentioned complaints during pregnancy with cerclage. Other aspects mentioned in both groups were social isolation, the lack of societal participation, and the perceived need to quit work and sports. All participants in the abdominal cerclage group reported a lack of comprehensible and unambiguous information about obstetric management and expectations during pregnancy in secondary care hospitals. Clear communication between secondary and tertiary care hospitals about obstetric management following an abdominal cerclage, for example, about the need for cervical length measurements by ultrasound, the need for bedrest or advice concerning sexual activity was missing (63%). Psychologic support was desired in half of all participants, but was not offered to them. CONCLUSIONS: The fear of a subsequent pregnancy loss was reported as the most limiting factor in daily life by all participants. Cerclage placement resulted in the reduction of anxiety. Participants mentioned a significant impact of bedrest and activity restriction during pregnancy with cerclage on social participation and daily activities. Unfortunately, no high level evidence is available on this matter. Patients might even benefit from appropriate levels of physical activity throughout their pregnancy to promote their overall well-being. More evidence is needed to determine the optimal level of physical activity. There is a need for clear and unambiguous patient information about obstetric management.

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