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1.
J Laryngol Otol ; : 1-5, 2024 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-38602175

RESUMO

OBJECTIVE: Oral corticosteroids are used to treat exacerbations of chronic rhinosinusitis with nasal polyps. Oral corticosteroid prescribing practices vary as reported from national surveys in Italy, China, Canada and the USA. METHODS: A nationwide online survey of ENT doctors practicing in Scotland was conducted using Microsoft Forms. RESULTS: There was a 31 per cent response rate. The most common daily doses of oral corticosteroid courses were 25 mg and 40 mg with the lengths being 14 and 7 days, respectively. Seventy-seven per cent of respondents prescribed the same daily dose throughout the course. Rhinologists prescribed longer courses with a smaller daily dose of prednisolone. Only one respondent fully agreed that there were clear guidelines regarding the daily dose and the length of oral corticosteroid course in the treatment of chronic rhinosinusitis with nasal polyps. CONCLUSION: The heterogeneity of oral corticosteroid prescribing practice in different countries, including Scotland, reveals the need for clear guidelines with a specific oral corticosteroid daily dose and length of the course.

2.
BMJ Case Rep ; 16(12)2023 Dec 21.
Artigo em Inglês | MEDLINE | ID: mdl-38129094

RESUMO

This case presents a known complication of particulate synovitis granuloma associated with a first metatarsophalangeal joint silastic implant. However, the degree of soft tissue granuloma enlargement is quite unique in size and its proliferative effect-invading the medulla cavity and infiltrating the outer cortex of bone. This case study aims to demonstrate its clinical presentation, imaging investigations, surgical excision and histopathology findings. The learning points emphasised within this manuscript draw attention to the procedure selection for a silastic implant, as well as its proposed mode of action and various potential associated complications. Surgery was based on careful analysis of overall function, prior surgery conducted and patient expectations to achieve a shared decision-making process.


Assuntos
Prótese Articular , Articulação Metatarsofalângica , Sinovite , Humanos , Prótese Articular/efeitos adversos , Articulação Metatarsofalângica/diagnóstico por imagem , Articulação Metatarsofalângica/cirurgia , Articulação Metatarsofalângica/patologia , Sinovite/etiologia , Granuloma/patologia
3.
Sci Rep ; 13(1): 14104, 2023 08 29.
Artigo em Inglês | MEDLINE | ID: mdl-37644108

RESUMO

Macrophages (MΦ) play a role in neonatal etiologies of obstructive cholestasis, however, the role for precise MΦ subsets remains poorly defined. We developed a neonatal murine model of bile duct ligation (BDL) to characterize etiology-specific differences in neonatal cholestatic MΦ polarization. Neonatal BDL surgery was performed on female BALB/c mice at 10 days of life (DOL) with sham laparotomy as controls. Comparison was made to the Rhesus Rotavirus (RRV)-induced murine model of biliary atresia (BA). Evaluation of changes at day 7 after surgery (BDL and sham groups) and murine BA (DOL14) included laboratory data, histology (H&E, anti-CD45 and anti-CK19 staining), flow cytometry of MΦ subsets by MHCII and Ly6c expression, and single cell RNA-sequencing (scRNA-seq) analysis. Neonatal BDL achieved a 90% survival rate; mice had elevated bile acids, bilirubin, and alanine aminotransferase (ALT) versus controls (p < 0.05 for all). Histology demonstrated hepatocellular injury, CD45+ portal infiltrate, and CK19+ bile duct proliferation in neonatal BDL. Comparison to murine BA showed increased ALT in neonatal BDL despite no difference in histology Ishak score. Neonatal BDL had significantly lower MHCII-Ly6c+ MΦ versus murine BA, however, scRNA-seq identified greater etiology-specific MΦ heterogeneity with increased endocytosis in neonatal BDL MΦ versus cellular killing in murine BA MΦ. We generated an innovative murine model of neonatal obstructive cholestasis with low mortality. This model enabled comparison to murine BA to define etiology-specific cholestatic MΦ function. Further comparisons to human data may enable development of immune modulatory therapies to improve patient outcomes.


Assuntos
Atresia Biliar , Colestase , Humanos , Feminino , Animais , Camundongos , Modelos Animais de Doenças , Ductos Biliares/cirurgia , Alanina Transaminase
4.
Health (London) ; : 13634593231185266, 2023 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-37391939

RESUMO

This article explores men's experiences of and management strategies for urinary incontinence (UI) following treatment for prostate cancer. Qualitative interviews with 29 men, recruited from two prostate cancer support groups, explored their post-treatment experiences. Drawing on a conceptual toolkit connecting theories of masculinities, embodiment, and chronic illness, this paper identifies older men's experiences and strategies for managing UI and explores how these are shaped by their masculinities. This article identifies interdependence between managing stigma for UI and maintaining masculinity. Men's embodied practices for engaging in activities in public, crucial to masculine identity, were disrupted. In response, they adopted new reflexive body techniques to manage and resolve their UI, and thereby address the threat to their masculine identities, characterised in three strategies: monitoring, planning, and disciplining. The new embodied practices men described suggest three factors as important components for adopting new reflexive body techniques: routine, desire, and unruliness.

5.
Cell Rep Med ; 4(5): 101025, 2023 05 16.
Artigo em Inglês | MEDLINE | ID: mdl-37137304

RESUMO

Therapy-resistant cancer stem cells (CSCs) contribute to the poor clinical outcomes of patients with recurrent glioblastoma (rGBM) who fail standard of care (SOC) therapy. ChemoID is a clinically validated assay for identifying CSC-targeted cytotoxic therapies in solid tumors. In a randomized clinical trial (NCT03632135), the ChemoID assay, a personalized approach for selecting the most effective treatment from FDA-approved chemotherapies, improves the survival of patients with rGBM (2016 WHO classification) over physician-chosen chemotherapy. In the ChemoID assay-guided group, median survival is 12.5 months (95% confidence interval [CI], 10.2-14.7) compared with 9 months (95% CI, 4.2-13.8) in the physician-choice group (p = 0.010) as per interim efficacy analysis. The ChemoID assay-guided group has a significantly lower risk of death (hazard ratio [HR] = 0.44; 95% CI, 0.24-0.81; p = 0.008). Results of this study offer a promising way to provide more affordable treatment for patients with rGBM in lower socioeconomic groups in the US and around the world.


Assuntos
Antineoplásicos , Neoplasias Encefálicas , Glioblastoma , Humanos , Glioblastoma/tratamento farmacológico , Neoplasias Encefálicas/tratamento farmacológico , Antineoplásicos/uso terapêutico , Resultado do Tratamento , Células-Tronco Neoplásicas
6.
J Immunol ; 210(9): 1247-1256, 2023 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-36939421

RESUMO

Retinoic acid-inducible gene I (RIG-I) is essential for activating host cell innate immunity to regulate the immune response against many RNA viruses. We previously identified that a small molecule compound, KIN1148, led to the activation of IFN regulatory factor 3 (IRF3) and served to enhance protection against influenza A virus (IAV) A/California/04/2009 infection. We have now determined direct binding of KIN1148 to RIG-I to drive expression of IFN regulatory factor 3 and NF-κB target genes, including specific immunomodulatory cytokines and chemokines. Intriguingly, KIN1148 does not lead to ATPase activity or compete with ATP for binding but activates RIG-I to induce antiviral gene expression programs distinct from type I IFN treatment. When administered in combination with a vaccine against IAV, KIN1148 induces both neutralizing Ab and IAV-specific T cell responses compared with vaccination alone, which induces comparatively poor responses. This robust KIN1148-adjuvanted immune response protects mice from lethal A/California/04/2009 and H5N1 IAV challenge. Importantly, KIN1148 also augments human CD8+ T cell activation. Thus, we have identified a small molecule RIG-I agonist that serves as an effective adjuvant in inducing noncanonical RIG-I activation for induction of innate immune programs that enhance adaptive immune protection of antiviral vaccination.


Assuntos
Virus da Influenza A Subtipo H5N1 , Vírus da Influenza A , Vacinas contra Influenza , Influenza Humana , Humanos , Animais , Camundongos , Proteína DEAD-box 58/metabolismo , Virus da Influenza A Subtipo H5N1/metabolismo , Fator Regulador 3 de Interferon/metabolismo , Adjuvantes Imunológicos , Antivirais/farmacologia , Imunidade Inata
7.
Palliat Med ; 37(4): 475-497, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36002975

RESUMO

BACKGROUND: Older people living with multimorbidity are projected to become the main recipients of palliative care in the coming decades, yet there is limited evidence regarding their expressed palliative care needs to inform person-centred care. AIM: To understand the palliative care needs of community-dwelling people aged ⩾60 living with multimorbidity in the last 2 years of life. DESIGN: A scoping review following Arksey and O'Malley. DATA SOURCES: Three international electronic databases (CINAHL, Ovid Medline, PsycINFO) were searched from March 2018 to December 2021. Reference lists were hand searched. Eligible papers were those reporting empirical data on older people's needs. RESULTS: From 985 potential papers, 28 studies were included, published between 2002 and 2020; sixteen quantitative, nine qualitative and three mixed methods. Data were extracted and presented under the holistic palliative care domains of need: physical, psychological, social, spiritual, and additionally practical needs. Different measurement tools (n = 29) were used, of which 20 were multidimensional. Primacy in reporting was given to physical needs, most commonly pain and function. Social and practical needs were often prioritised by older people themselves, including maintaining social connections and accessing and receiving individualised care. CONCLUSION: Identifying the palliative care needs that matter most to older people with multimorbidity requires the recognition of their concerns, as well as their symptoms, across a continuum of living and dying. Available evidence is superficial. Supporting end of life provision for this growing and underserved population necessitates a shift to tailored multidimensional tools and community focussed integrated care services.


Assuntos
Enfermagem de Cuidados Paliativos na Terminalidade da Vida , Cuidados Paliativos , Humanos , Idoso , Cuidados Paliativos/métodos , Vida Independente , Multimorbidade , Dor
8.
Biomedicines ; 10(11)2022 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-36359362

RESUMO

Neurocytomas are rare low-grade brain tumors predominantly affecting young adults, but their cellular origin and molecular pathogenesis is largely unknown. We previously reported a sellar neurocytoma that secreted excess arginine vasopressin causing syndrome of inappropriate anti-diuretic hormone (SIADH). Whole exome sequencing in 21 neurocytoma tumor tissues identified somatic mutations in the plant homeodomain finger protein 14 (PHF14) in 3/21 (14%) tumors. Of these mutations, two were missense mutations and 4 caused splicing site losses, resulting in PHF14 dysfunction. Employing shRNA-mediated knockdown and CRISPR/Cas9-based knockout approaches, we demonstrated that loss of PHF14 increased proliferation and colony formation in five different human, mouse and rat mesenchymal and differentiated cell lines. Additionally, we demonstrated that PHF14 depletion resulted in upregulation of platelet derived growth factor receptor-alpha (PDGFRα) mRNA and protein in neuroblastoma SHSY-5Y cells and led to increased sensitivity to treatment with the PDGFR inhibitor Sunitinib. Furthermore, in a neurocytoma primary culture harboring splicing loss PHF14 mutations, overexpression of wild-type PHF14 and sunitinib treatment inhibited cell proliferation. Nude mice, inoculated with PHF14 knockout SHSY-5Y cells developed earlier and larger tumors than control cell-inoculated mice and Sunitinib administration caused greater tumor suppression in mice harboring PHF-14 knockout than control SHSY-5Y cells. Altogether our studies identified mutations of PHF14 in 14% of neurocytomas, demonstrate it can serve as an alternative pathway for certain cancerous behavior, and suggest a potential role for Sunitinib treatment in some patients with residual/recurrent neurocytoma.

9.
Nature ; 611(7936): 519-531, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36261518

RESUMO

The current human reference genome, GRCh38, represents over 20 years of effort to generate a high-quality assembly, which has benefitted society1,2. However, it still has many gaps and errors, and does not represent a biological genome as it is a blend of multiple individuals3,4. Recently, a high-quality telomere-to-telomere reference, CHM13, was generated with the latest long-read technologies, but it was derived from a hydatidiform mole cell line with a nearly homozygous genome5. To address these limitations, the Human Pangenome Reference Consortium formed with the goal of creating high-quality, cost-effective, diploid genome assemblies for a pangenome reference that represents human genetic diversity6. Here, in our first scientific report, we determined which combination of current genome sequencing and assembly approaches yield the most complete and accurate diploid genome assembly with minimal manual curation. Approaches that used highly accurate long reads and parent-child data with graph-based haplotype phasing during assembly outperformed those that did not. Developing a combination of the top-performing methods, we generated our first high-quality diploid reference assembly, containing only approximately four gaps per chromosome on average, with most chromosomes within ±1% of the length of CHM13. Nearly 48% of protein-coding genes have non-synonymous amino acid changes between haplotypes, and centromeric regions showed the highest diversity. Our findings serve as a foundation for assembling near-complete diploid human genomes at scale for a pangenome reference to capture global genetic variation from single nucleotides to structural rearrangements.


Assuntos
Mapeamento Cromossômico , Diploide , Genoma Humano , Genômica , Humanos , Mapeamento Cromossômico/normas , Genoma Humano/genética , Haplótipos/genética , Sequenciamento de Nucleotídeos em Larga Escala/métodos , Sequenciamento de Nucleotídeos em Larga Escala/normas , Análise de Sequência de DNA/métodos , Análise de Sequência de DNA/normas , Padrões de Referência , Genômica/métodos , Genômica/normas , Cromossomos Humanos/genética , Variação Genética/genética
10.
J Lipid Res ; 63(11): 100289, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36162519

RESUMO

FXR regulates bile acid metabolism, and FXR null (Fxr-/-) mice have elevated bile acid levels and progressive liver injury. The inositol-requiring enzyme 1α/X-box binding protein 1 (XBP1) pathway is a protective unfolded protein response pathway activated in response to endoplasmic reticulum stress. Here, we sought to determine the role of the inositol-requiring enzyme 1α/XBP1 pathway in hepatic bile acid toxicity using the Fxr-/- mouse model. Western blotting and quantitative PCR analysis demonstrated that hepatic XBP1 and other unfolded protein response pathways were activated in 24-week-old Fxr-/- compared with 10-week-old Fxr-/- mice but not in WT mice. To further determine the role of the liver XBP1 activation in older Fxr-/- mice, we generated mice with whole-body FXR and liver-specific XBP1 double KO (DKO, Fxr-/-Xbp1LKO) and Fxr-/-Xbp1fl/fl single KO (SKO) mice and characterized the role of hepatic XBP1 in cholestatic liver injury. Histologic staining demonstrated increased liver injury and fibrosis in DKO compared with SKO mice. RNA sequencing revealed increased gene expression in apoptosis, inflammation, and cell proliferation pathways in DKO mice. The proapoptotic C/EBP-homologous protein pathway and cell cycle marker cyclin D1 were also activated in DKO mice. Furthermore, we found that total hepatic bile acid levels were similar between the two genotypes. At age 60 weeks, all DKO mice and no SKO mice spontaneously developed liver tumors. In conclusion, the hepatic XBP1 pathway is activated in older Fxr-/- mice and has a protective role. The potential interaction between XBP1 and FXR signaling may be important in modulating the hepatocellular cholestatic stress responses.


Assuntos
Colestase , Fígado , Proteína 1 de Ligação a X-Box , Animais , Camundongos , Ácidos e Sais Biliares/metabolismo , Colestase/genética , Inositol/metabolismo , Fígado/metabolismo , Fígado/fisiopatologia , Camundongos Endogâmicos C57BL , Camundongos Knockout , Proteína 1 de Ligação a X-Box/genética
11.
BMC Gastroenterol ; 22(1): 380, 2022 Aug 10.
Artigo em Inglês | MEDLINE | ID: mdl-35948878

RESUMO

BACKGROUND: Cholestatic liver diseases are a major source of morbidity and mortality that can progress to end-stage liver disease and hyperbilirubinemia is a hallmark of cholestasis. There are few effective medical therapies for primary biliary cholangitis, primary sclerosing cholangitis and other cholestatic liver diseases, in part, due to our incomplete understanding of the pathogenesis of cholestatic liver injury. The hepatic unfolded protein response (UPR) is an adaptive cellular response to endoplasmic reticulum stress that is important in the pathogenesis of many liver diseases and recent animal studies have demonstrated the importance of the UPR in the pathogenesis of cholestatic liver injury. However, the role of the UPR in human cholestatic liver diseases is largely unknown. METHODS: RNA was extracted from liver biopsies from patients after liver transplantation. RNA-seq was performed to determine the transcriptional profile and hepatic UPR gene expression that is associated with liver injury and cholestasis. RESULTS: Transcriptome analysis revealed that patients with hyperbilirubinemia had enhanced expression of hepatic UPR pathways. Alternatively, liver biopsy samples from patients with acute rejection had enhanced gene expression of LAG3 and CDK1. Pearson correlation analysis of serum alanine aminotransferase, aspartate aminotransferase and total bilirubin levels demonstrated significant correlations with the hepatic expression of several UPR genes, as well as genes involved in hepatic bile acid metabolism and inflammation. In contrast, serum alkaline phosphatase levels were correlated with the level of hepatic bile acid metabolism gene expression but not liver UPR gene expression. CONCLUSIONS: Overall, these data indicate that hepatic UPR pathways are increased in cholestatic human liver biopsy samples and supports an important role of the UPR in the mechanism of human cholestatic liver injury.


Assuntos
Colestase , Hepatopatias , Animais , Ácidos e Sais Biliares , Biópsia , Colestase/genética , Colestase/patologia , Humanos , Hiperbilirrubinemia , Resposta a Proteínas não Dobradas/genética
12.
Neurooncol Adv ; 4(1): vdac030, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35386566

RESUMO

Background: Patients with isocitrate dehydrogenase (IDH) mutant gliomas have been associated with longer survival time than those that are IDH wild-type. Previous studies have shown the prognostic value of O 6 -methylguanine-DNA methyltransferase (MGMT) promoter methylation for glioblastoma multiforme (GBM), which are predominantly IDH wild-type. Little is known of the prognostic value of MGMT methylation status for IDH mutant gliomas. Methods: We retrospectively identified IDH mutant gliomas patients between 2011 and 2020 that were tested for MGMT promoter methylation. We generated Kaplan-Meier estimator curves and performed Cox proportional hazard models for overall survival (OS) and progression-free survival (PFS) to compare the outcomes of MGMT promoter methylated versus MGMT unmethylated patients. Results: Of 419 IDH mutant gliomas with MGMT promoter methylation testing, we identified 54 GBMs, 223 astrocytomas, and 142 oligodendrogliomas. 62.3% patients had MGMT methylated tumors while 37.7% were MGMT unmethylated. On Kaplan-Meier analysis, median OS for all MGMT methylated patients was 17.7 years and 14.6 years for unmethylated patients. Median PFS for all MGMT methylated patients was 7.0 years and for unmethylated patients 5.2 years. After univariate subgroup analysis, MGMT methylation is only prognostic for OS and PFS in GBM, and for OS in anaplastic oligodendroglioma and anaplastic oligodendroglioma for OS. In multivariate analysis, MGMT unmethylated GBM patients carry a higher risk of death (HR 7.72, 95% CI 2.10-28.33) and recurrence (HR 3.85, 95% CI 1.35-10.96). Conclusions: MGMT promoter methylation is associated with better OS and PFS for IDH mutant GBM. MGMT promoter methylation testing for other IDH mutant glioma subtypes may not provide additional information on prognostication.

13.
BMJ Case Rep ; 15(12)2022 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-36593611

RESUMO

No part of the human body is immune to tuberculosis, the most common site being the lungs. We report a rare case of primary nasopharyngeal tuberculosis without cervical lymphadenopathy nor pulmonary involvement. The only presenting symptom was an intermittent discomfort in the neck and throat. Several biopsies were performed to exclude nasopharyngeal carcinoma and to reach the final diagnosis of tuberculosis. The patient made full recovery following 6 months of treatment with antibiotics. A multidisciplinary approach by ear, nose and throat, radiology, pathology, and infectious disease colleagues was crucial in reaching the diagnosis and managing the patient.


Assuntos
Neoplasias Nasofaríngeas , Tuberculose , Humanos , Nasofaringe/patologia , Tuberculose/diagnóstico , Tuberculose/tratamento farmacológico , Tuberculose/patologia , Faringe/patologia , Pescoço/patologia , Neoplasias Nasofaríngeas/diagnóstico
14.
Mol Cell ; 81(24): 5052-5065.e6, 2021 12 16.
Artigo em Inglês | MEDLINE | ID: mdl-34847358

RESUMO

Accumulation of unfolded or misfolded proteins in the endoplasmic reticulum (ER) lumen triggers an unfolded protein response (UPR) for stress adaptation, the failure of which induces cell apoptosis and tissue/organ damage. The molecular switches underlying how the UPR selects for stress adaptation over apoptosis remain unknown. Here, we discovered that accumulation of unfolded/misfolded proteins selectively induces N6-adenosine-methyltransferase-14 (METTL14) expression. METTL14 promotes C/EBP-homologous protein (CHOP) mRNA decay through its 3' UTR N6-methyladenosine (m6A) to inhibit its downstream pro-apoptotic target gene expression. UPR induces METTL14 expression by competing against the HRD1-ER-associated degradation (ERAD) machinery to block METTL14 ubiquitination and degradation. Therefore, mice with liver-specific METTL14 deletion are highly susceptible to both acute pharmacological and alpha-1 antitrypsin (AAT) deficiency-induced ER proteotoxic stress and liver injury. Further hepatic CHOP deletion protects METTL14 knockout mice from ER-stress-induced liver damage. Our study reveals a crosstalk between ER stress and mRNA m6A modification pathways, termed the ERm6A pathway, for ER stress adaptation to proteotoxicity.


Assuntos
Adenina/análogos & derivados , Estresse do Retículo Endoplasmático , Degradação Associada com o Retículo Endoplasmático , Retículo Endoplasmático/enzimologia , Hepatopatias/enzimologia , Fígado/enzimologia , Metiltransferases/metabolismo , Ubiquitina-Proteína Ligases/metabolismo , Adenina/metabolismo , Animais , Apoptose , Modelos Animais de Doenças , Retículo Endoplasmático/metabolismo , Retículo Endoplasmático/patologia , Células HEK293 , Células Hep G2 , Humanos , Fígado/patologia , Hepatopatias/etiologia , Hepatopatias/genética , Hepatopatias/patologia , Metiltransferases/genética , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Endogâmicos NOD , Camundongos Knockout , Camundongos SCID , Células NIH 3T3 , Proteólise , Fator de Transcrição CHOP/genética , Fator de Transcrição CHOP/metabolismo , Ubiquitina-Proteína Ligases/genética , Ubiquitinação , alfa 1-Antitripsina/genética , alfa 1-Antitripsina/metabolismo , Deficiência de alfa 1-Antitripsina/complicações , Deficiência de alfa 1-Antitripsina/enzimologia , Deficiência de alfa 1-Antitripsina/genética
15.
J Int Adv Otol ; 17(5): 405-411, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34617890

RESUMO

OBJECTIVE: This study used questionnaires to examine the patient-reported satisfaction with 2 hearing implant devices to determine the level of overall satisfaction with the devices, which, if any, factors predicted good or poor perceived outcomes, or whether there were any specific aspects of the devices where dissatisfaction was apparent. METHODS: A post-treatment questionnaire survey of 39 adult patients who had received a Vibrant Soundbridge (VSB) or Bonebridge (BB) hearing implant, with at least 3 months of follow-up, was conducted using the Glasgow Benefit Inventory (GBI) and Hearing Device Satisfaction Scale (HDSS). Satisfaction scores were compared to pre- and post-operative audiologic outcomes. The correlation between GBI and HDSS scores was also examined. RESULTS: A total of 28 of the 39 patients (72%) responded: 13 with a BB and 15 with a VSB at a mean of 13 months after implantation. The overall mean total GBI score was 30, with no significant differences across the groups. The responders generally reported that they were "satisfied" across most domains of the HDSS. In the study, 25 of the 28 responders were largely satisfied with their devices but 3 respondents were not. Two were known non-users, while one used the device but did not gain the benefit expected. It is instructive to note that all of these dissatisfied recipients were close to the manufacturer recommended limits for implantation of their respective devices at the time of surgery. Certain themes were identified within the patients' responses, indicating common aspects where satisfaction was poorer. CONCLUSION: This series of 28 implant recipients demonstrates high levels of satisfaction with implantable hearing devices across 2 different validated questionnaires. Implant teams could exercise caution and manage patient expectations if the patients are close to the recommended limits of a particular device.


Assuntos
Auxiliares de Audição , Perda Auditiva Condutiva-Neurossensorial Mista , Adulto , Condução Óssea , Orelha Média , Humanos , Medidas de Resultados Relatados pelo Paciente , Resultado do Tratamento
16.
Foot (Edinb) ; 47: 101775, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33965675

RESUMO

Soft tissue lesions found within the foot and ankle can vary in their origin. Tenosynovial giant-cell tumours (TSGCT) are quoted as rare in their presentation yet also reported to be the sixth most common benign lesion in the foot. This article presents a case report following the patient journey suffering with a TSGCT of the fourth toe. From initial consultation, to further investigation with advanced imaging to a final decision on surgical excision following consideration of conservative management.


Assuntos
Tumor de Células Gigantes de Bainha Tendinosa , Tornozelo , Articulação do Tornozelo/diagnóstico por imagem , Articulação do Tornozelo/cirurgia , Tumor de Células Gigantes de Bainha Tendinosa/diagnóstico por imagem , Tumor de Células Gigantes de Bainha Tendinosa/cirurgia , Humanos , Tendões/diagnóstico por imagem , Tendões/cirurgia , Dedos do Pé
17.
Immunohorizons ; 5(4): 157-169, 2021 04 23.
Artigo em Inglês | MEDLINE | ID: mdl-33893179

RESUMO

The goal of a successful immune response is to clear the pathogen while sparing host tissues from damage associated with pathogen replication and active immunity. Regulatory T cells (Treg) have been implicated in maintaining this balance as they contribute both to the organization of immune responses as well as restriction of inflammation and immune activation to limit immunopathology. To determine if Treg abundance prior to pathogen encounter can be used to predict the success of an antiviral immune response, we used genetically diverse mice from the collaborative cross infected with West Nile virus (WNV). We identified collaborative cross lines with extreme Treg abundance at steady state, either high or low, and used mice with these extreme phenotypes to demonstrate that baseline Treg quantity predicted the magnitude of the CD8 T cell response to WNV infection, although higher numbers of baseline Tregs were associated with reduced CD8 T cell functionality in terms of TNF and granzyme B expression. Finally, we found that abundance of CD44+ Tregs in the spleen at steady state was correlated with an increased early viral load within the spleen without an association with clinical disease. Thus, we propose that Tregs participate in disease tolerance in the context of WNV infection by tuning an appropriately focused and balanced immune response to control the virus while at the same time minimizing immunopathology and clinical disease. We hypothesize that Tregs limit the antiviral CD8 T cell function to curb immunopathology at the expense of early viral control as an overall host survival strategy.


Assuntos
Encéfalo/imunologia , Linfócitos T CD8-Positivos/imunologia , Baço/imunologia , Linfócitos T Reguladores/imunologia , Febre do Nilo Ocidental/imunologia , Animais , Encéfalo/patologia , Encéfalo/virologia , Linfócitos T CD8-Positivos/metabolismo , Granzimas/imunologia , Granzimas/metabolismo , Tolerância Imunológica , Masculino , Camundongos , Baço/patologia , Baço/virologia , Linfócitos T Reguladores/metabolismo , Linfócitos T Reguladores/patologia , Fator de Necrose Tumoral alfa/imunologia , Fator de Necrose Tumoral alfa/metabolismo , Carga Viral , Febre do Nilo Ocidental/patologia , Febre do Nilo Ocidental/virologia , Vírus do Nilo Ocidental/imunologia , Vírus do Nilo Ocidental/fisiologia
18.
Science ; 371(6530)2021 02 12.
Artigo em Inglês | MEDLINE | ID: mdl-33574182

RESUMO

The evolutionarily conserved splicing regulator neuro-oncological ventral antigen 1 (NOVA1) plays a key role in neural development and function. NOVA1 also includes a protein-coding difference between the modern human genome and Neanderthal and Denisovan genomes. To investigate the functional importance of an amino acid change in humans, we reintroduced the archaic allele into human induced pluripotent cells using genome editing and then followed their neural development through cortical organoids. This modification promoted slower development and higher surface complexity in cortical organoids with the archaic version of NOVA1 Moreover, levels of synaptic markers and synaptic protein coassociations correlated with altered electrophysiological properties in organoids expressing the archaic variant. Our results suggest that the human-specific substitution in NOVA1, which is exclusive to modern humans since divergence from Neanderthals, may have had functional consequences for our species' evolution.


Assuntos
Córtex Cerebral/crescimento & desenvolvimento , Córtex Cerebral/fisiologia , Homem de Neandertal/genética , Neurônios/fisiologia , Proteínas de Ligação a RNA/genética , Proteínas de Ligação a RNA/metabolismo , Alelos , Processamento Alternativo , Substituição de Aminoácidos , Animais , Sítios de Ligação , Evolução Biológica , Sistemas CRISPR-Cas , Proliferação de Células , Córtex Cerebral/citologia , Regulação da Expressão Gênica no Desenvolvimento , Variação Genética , Genoma , Genoma Humano , Haplótipos , Hominidae/genética , Humanos , Células-Tronco Pluripotentes Induzidas , Rede Nervosa/fisiologia , Proteínas do Tecido Nervoso/genética , Proteínas do Tecido Nervoso/metabolismo , Antígeno Neuro-Oncológico Ventral , Organoides , Sinapses/fisiologia
19.
PLoS One ; 16(1): e0244743, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33411796

RESUMO

BACKGROUND & AIMS: Limited understanding of the role for specific macrophage subsets in the pathogenesis of cholestatic liver injury is a barrier to advancing medical therapy. Macrophages have previously been implicated in both the mal-adaptive and protective responses in obstructive cholestasis. Recently two macrophage subsets were identified in non-diseased human liver; however, no studies to date fully define the heterogeneous macrophage subsets during the pathogenesis of cholestasis. Here, we aim to further characterize the transcriptional profile of macrophages in pediatric cholestatic liver disease. METHODS: We isolated live hepatic immune cells from patients with biliary atresia (BA), Alagille syndrome (ALGS), and non-cholestatic pediatric liver by fluorescence activated cell sorting. Through single-cell RNA sequencing analysis and immunofluorescence, we characterized cholestatic macrophages. We next compared the transcriptional profile of pediatric cholestatic and non-cholestatic macrophage populations to previously published data on normal adult hepatic macrophages. RESULTS: We identified 3 distinct macrophage populations across cholestatic liver samples and annotated them as lipid-associated macrophages, monocyte-like macrophages, and adaptive macrophages based on their transcriptional profile. Immunofluorescence of liver tissue using markers for each subset confirmed their presence across BA (n = 6) and ALGS (n = 6) patients. Cholestatic macrophages demonstrated reduced expression of immune regulatory genes as compared to normal hepatic macrophages and were distinct from macrophage populations defined in either healthy adult or pediatric non-cholestatic liver. CONCLUSIONS: We are the first to perform single-cell RNA sequencing on human pediatric cholestatic liver and identified three macrophage subsets with distinct transcriptional signatures from healthy liver macrophages. Further analyses will identify similarities and differences in these macrophage sub-populations across etiologies of cholestatic liver disease. Taken together, these findings may allow for future development of targeted therapeutic strategies to reprogram macrophages to an immune regulatory phenotype and reduce cholestatic liver injury.


Assuntos
Atresia Biliar/metabolismo , Colestase/metabolismo , Fígado/metabolismo , Macrófagos/metabolismo , Transcriptoma , Atresia Biliar/genética , Atresia Biliar/patologia , Criança , Pré-Escolar , Colestase/genética , Colestase/patologia , Feminino , Perfilação da Expressão Gênica , Humanos , Lactente , Fígado/patologia , Masculino
20.
Health (London) ; 25(4): 399-416, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-31144532

RESUMO

This article explores men's experiences following treatment for prostate cancer through the lens of chronic illness. Recent empirical work suggests prostate cancer may be better understood as a chronic illness. Prostate cancer offers a case study to examine how older men's masculinities are disrupted by chronic illness experience. Qualitative interviews with 29 men, recruited from two prostate cancer support groups, explored prostate cancer and post-treatment experiences. Men's experiences are examined by drawing on the works of Steve Robertson and Kathy Charmaz for understanding masculinities in relation to health and illness. Aspects of chronic illness experience are identified in men's accounts, particularly concerns with loss of moral status resulting from ongoing and potentially stigmatising treatment side effects. Four forms of moral positioning are identified that align with Steve Robertson's empirically derived model theorising the relationship between health and hegemonic masculinity. These findings facilitate discussion of the interaction between chronic illness experience, morality and masculinities, providing insight into how older men maintain their masculinity in the wake of illness.


Assuntos
Masculinidade , Neoplasias da Próstata , Idoso , Doença Crônica , Humanos , Masculino , Homens , Saúde do Homem , Princípios Morais
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