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1.
Nature ; 617(7961): 555-563, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-36996873

RESUMEN

An outbreak of acute hepatitis of unknown aetiology in children was reported in Scotland1 in April 2022 and has now been identified in 35 countries2. Several recent studies have suggested an association with human adenovirus with this outbreak, a virus not commonly associated with hepatitis. Here we report a detailed case-control investigation and find an association between adeno-associated virus 2 (AAV2) infection and host genetics in disease susceptibility. Using next-generation sequencing, PCR with reverse transcription, serology and in situ hybridization, we detected recent infection with AAV2 in plasma and liver samples in 26 out of 32 (81%) cases of hepatitis compared with 5 out of 74 (7%) of samples from unaffected individuals. Furthermore, AAV2 was detected within ballooned hepatocytes alongside a prominent T cell infiltrate in liver biopsy samples. In keeping with a CD4+ T-cell-mediated immune pathology, the human leukocyte antigen (HLA) class II HLA-DRB1*04:01 allele was identified in 25 out of 27 cases (93%) compared with a background frequency of 10 out of 64 (16%; P = 5.49 × 10-12). In summary, we report an outbreak of acute paediatric hepatitis associated with AAV2 infection (most likely acquired as a co-infection with human adenovirus that is usually required as a 'helper virus' to support AAV2 replication) and disease susceptibility related to HLA class II status.


Asunto(s)
Infecciones por Adenovirus Humanos , Dependovirus , Hepatitis , Niño , Humanos , Enfermedad Aguda/epidemiología , Infecciones por Adenovirus Humanos/epidemiología , Infecciones por Adenovirus Humanos/genética , Infecciones por Adenovirus Humanos/virología , Alelos , Estudios de Casos y Controles , Linfocitos T CD4-Positivos/inmunología , Coinfección/epidemiología , Coinfección/virología , Dependovirus/aislamiento & purificación , Predisposición Genética a la Enfermedad , Virus Helper/aislamiento & purificación , Hepatitis/epidemiología , Hepatitis/genética , Hepatitis/virología , Hepatocitos/virología , Cadenas HLA-DRB1/genética , Cadenas HLA-DRB1/inmunología , Hígado/virología
2.
Curr Opin Infect Dis ; 37(4): 296-303, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-38899948

RESUMEN

PURPOSE OF REVIEW: Timely postexposure prophylaxis is important after an occupational exposure. Here we review select organisms, exposure opportunities in the healthcare setting, and postexposure prophylaxis regimens. RECENT FINDINGS: Needlestick injuries pose a risk of exposure to bloodborne pathogens, such as HIV, Hepatitis B, and Hepatitis C. Risk mitigation strategies should be reexamined in light of newer vaccines and therapeutics. Increased vaccine hesitancy and vaccine denialisms may foster the re-emergence of some infections that have become extremely uncommon because of effective vaccines. With increasing occurrences of zoonotic infections and the ease of global spread as evidenced by COVID-19 and mpox, healthcare exposures must also consider risks related to emerging and re-emerging infectious diseases. SUMMARY: Early recognition and reporting of occupational exposures to pathogens with available postexposure prophylaxis is key to mitigating the risk of transmission. Providers should be able to evaluate the exposure and associated risks to provide prompt and appropriate postexposure prophylaxis.


Asunto(s)
Personal de Salud , Exposición Profesional , Profilaxis Posexposición , Humanos , Profilaxis Posexposición/métodos , Exposición Profesional/prevención & control , Lesiones por Pinchazo de Aguja/prevención & control , Transmisión de Enfermedad Infecciosa de Paciente a Profesional/prevención & control , COVID-19/prevención & control , COVID-19/transmisión
3.
EMBO Rep ; 23(8): e54315, 2022 08 03.
Artículo en Inglés | MEDLINE | ID: mdl-35695071

RESUMEN

The primary cilium constitutes an organelle that orchestrates signal transduction independently from the cell body. Dysregulation of this intricate molecular architecture leads to severe human diseases, commonly referred to as ciliopathies. However, the molecular underpinnings how ciliary signaling orchestrates a specific cellular output remain elusive. By combining spatially resolved optogenetics with RNA sequencing and imaging, we reveal a novel cAMP signalosome that is functionally distinct from the cytoplasm. We identify the genes and pathways targeted by the ciliary cAMP signalosome and shed light on the underlying mechanisms and downstream signaling. We reveal that chronic stimulation of the ciliary cAMP signalosome transforms kidney epithelia from tubules into cysts. Counteracting this chronic cAMP elevation in the cilium by small molecules targeting activation of phosphodiesterase-4 long isoforms inhibits cyst growth. Thereby, we identify a novel concept of how the primary cilium controls cellular functions and maintains tissue integrity in a specific and spatially distinct manner and reveal novel molecular components that might be involved in the development of one of the most common genetic diseases, polycystic kidney disease.


Asunto(s)
Quistes , Enfermedades Renales Poliquísticas , Cilios/metabolismo , Quistes/metabolismo , Expresión Génica , Humanos , Riñón , Enfermedades Renales Poliquísticas/genética , Enfermedades Renales Poliquísticas/metabolismo
4.
Mol Cancer ; 22(1): 89, 2023 05 30.
Artículo en Inglés | MEDLINE | ID: mdl-37248468

RESUMEN

AIM: Chemoresistance is a major cause of treatment failure in colorectal cancer (CRC) therapy. In this study, the impact of the IGF2BP family of RNA-binding proteins on CRC chemoresistance was investigated using in silico, in vitro, and in vivo approaches. METHODS: Gene expression data from a well-characterized cohort and publicly available cross-linking immunoprecipitation sequencing (CLIP-Seq) data were collected. Resistance to chemotherapeutics was assessed in patient-derived xenografts (PDXs) and patient-derived organoids (PDOs). Functional studies were performed in 2D and 3D cell culture models, including proliferation, spheroid growth, and mitochondrial respiration analyses. RESULTS: We identified IGF2BP2 as the most abundant IGF2BP in primary and metastastatic CRC, correlating with tumor stage in patient samples and tumor growth in PDXs. IGF2BP2 expression in primary tumor tissue was significantly associated with resistance to selumetinib, gefitinib, and regorafenib in PDOs and to 5-fluorouracil and oxaliplatin in PDX in vivo. IGF2BP2 knockout (KO) HCT116 cells were more susceptible to regorafenib in 2D and to oxaliplatin, selumitinib, and nintedanib in 3D cell culture. Further, a bioinformatic analysis using CLIP data suggested stabilization of target transcripts in primary and metastatic tumors. Measurement of oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) revealed a decreased basal OCR and an increase in glycolytic ATP production rate in IGF2BP2 KO. In addition, real-time reverse transcriptase polymerase chain reaction (qPCR) analysis confirmed decreased expression of genes of the respiratory chain complex I, complex IV, and the outer mitochondrial membrane in IGF2BP2 KO cells. CONCLUSIONS: IGF2BP2 correlates with CRC tumor growth in vivo and promotes chemoresistance by altering mitochondrial respiratory chain metabolism. As a druggable target, IGF2BP2 could be used in future CRC therapy to overcome CRC chemoresistance.


Asunto(s)
Neoplasias Colorrectales , Humanos , Oxaliplatino/farmacología , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/genética , Neoplasias Colorrectales/patología , Resistencia a Antineoplásicos/genética , Proteínas de Unión al ARN/genética , Proteínas de Unión al ARN/metabolismo , Línea Celular Tumoral , Proliferación Celular/genética , Regulación Neoplásica de la Expresión Génica
5.
PLoS Med ; 20(4): e1004208, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-37014910

RESUMEN

BACKGROUND: Multimorbidity prevalence rates vary considerably depending on the conditions considered in the morbidity count, but there is no standardised approach to the number or selection of conditions to include. METHODS AND FINDINGS: We conducted a cross-sectional study using English primary care data for 1,168,260 participants who were all people alive and permanently registered with 149 included general practices. Outcome measures of the study were prevalence estimates of multimorbidity (defined as ≥2 conditions) when varying the number and selection of conditions considered for 80 conditions. Included conditions featured in ≥1 of the 9 published lists of conditions examined in the study and/or phenotyping algorithms in the Health Data Research UK (HDR-UK) Phenotype Library. First, multimorbidity prevalence was calculated when considering the individually most common 2 conditions, 3 conditions, etc., up to 80 conditions. Second, prevalence was calculated using 9 condition-lists from published studies. Analyses were stratified by dependent variables age, socioeconomic position, and sex. Prevalence when only the 2 commonest conditions were considered was 4.6% (95% CI [4.6, 4.6] p < 0.001), rising to 29.5% (95% CI [29.5, 29.6] p < 0.001) considering the 10 commonest, 35.2% (95% CI [35.1, 35.3] p < 0.001) considering the 20 commonest, and 40.5% (95% CI [40.4, 40.6] p < 0.001) when considering all 80 conditions. The threshold number of conditions at which multimorbidity prevalence was >99% of that measured when considering all 80 conditions was 52 for the whole population but was lower in older people (29 in >80 years) and higher in younger people (71 in 0- to 9-year-olds). Nine published condition-lists were examined; these were either recommended for measuring multimorbidity, used in previous highly cited studies of multimorbidity prevalence, or widely applied measures of "comorbidity." Multimorbidity prevalence using these lists varied from 11.1% to 36.4%. A limitation of the study is that conditions were not always replicated using the same ascertainment rules as previous studies to improve comparability across condition-lists, but this highlights further variability in prevalence estimates across studies. CONCLUSIONS: In this study, we observed that varying the number and selection of conditions results in very large differences in multimorbidity prevalence, and different numbers of conditions are needed to reach ceiling rates of multimorbidity prevalence in certain groups of people. These findings imply that there is a need for a standardised approach to defining multimorbidity, and to facilitate this, researchers can use existing condition-lists associated with highest multimorbidity prevalence.


Asunto(s)
Multimorbilidad , Atención Primaria de Salud , Humanos , Estudios Transversales , Enfermedad Crónica , Comorbilidad , Prevalencia
6.
Ann Fam Med ; 21(Suppl 2): S106-S108, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36849486

RESUMEN

Addressing the unequal impact of health disparities on historically marginalized communities is a top public health priority. Diversifying the work force has been lauded as key to addressing this challenge. Contributing to diversity in the workforce is the recruitment and retention of health professionals previously excluded and underrepresented in medicine. A major obstacle to retention, however, is the unequal way in which health professionals experience the learning environment. Through this perspective of 4 generations of physicians and medical students, the authors seek to highlight the similarities that have persisted over 40 years in the experiences of being underrepresented in medicine. Through a series of conversations and reflective writing, the authors reveal themes that spanned generations. Two common themes among the authors are the feeling of not belonging and feeling invisible. This is experienced in various aspects of medical education and academic careers. The lack of representation, unequal expectations, and over taxation contributes to the feeling of not belonging, leading to emotional, physical, and academic fatigue. Feeling invisible, yet paradoxically being hyper-visible, is also common. Despite the challenges, the authors conclude with a sense of hope for the future, if not for them, for the generations to come.


Asunto(s)
Diversidad, Equidad e Inclusión , Educación Médica , Personal de Salud , Humanos , Comunicación , Emociones , Poblaciones Minoritarias, Vulnerables y Desiguales en Salud , Personal de Salud/educación , Personal de Salud/psicología , Fuerza Laboral en Salud , Selección de Personal , Reorganización del Personal , Salud Pública , Determinantes Sociales de la Salud , Aislamiento Social/psicología , Marginación Social/psicología , Estudiantes de Medicina/psicología , Médicos/psicología
7.
Community Ment Health J ; 59(2): 370-380, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36001197

RESUMEN

Rising psychiatric emergency department (ED) presentations pose significant financial and administrative burdens to hospitals. Alternative psychiatric emergency services programs have the potential to alleviate this strain by diverting non-emergent mental health issues from EDs. This study explores one such program, the Boston Emergency Services Team (BEST), a multi-channel psychiatric emergency services provider intended for the publicly insured and uninsured population. BEST provides evaluation and treatment for psychiatric crises through specialized psychiatric EDs, a 24/7 hotline, psychiatric urgent care centers, and mobile crisis units. This retrospective review examines the sociodemographic and clinical characteristics of 225,198 BEST encounters (2005-2016). Of note, the proportion of encounters taking place in ED settings decreased significantly from 70 to 58% across the study period. Findings suggest that multi-focal, psychiatric emergency programs like BEST have the potential to reduce the burden of emergency mental health presentations and improve patient diversion to appropriate psychiatric care.


Asunto(s)
Servicios de Urgencia Psiquiátrica , Servicios de Salud Mental , Humanos , Boston , Salud Mental , Servicio de Urgencia en Hospital
8.
Scott Med J ; 68(1): 14-20, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36250546

RESUMEN

BACKGROUND AND AIMS: The 'inverse care law', first described in 1971, results from a mismatch of healthcare need and healthcare supply in deprived areas. GPs in such areas struggle to cope with the high levels of demand resulting in shorter consultations and poorer patient outcomes. We compare recent national GP and patient satisfaction data to investigate the ongoing existence of this disparity in Scotland. METHODS AND RESULTS: Secondary analysis of cross-sectional national surveys (2017/2018) on upper and lower deprivation quintiles. GP measures; job satisfaction, job stressors, positive and negative job attributes. Patient measures; percentage positive responses per practice on survey questions on access and consultation quality. GPs in high deprivation areas reported lower job satisfaction and positive job attributes, and higher job stressors and negative job attributes compared with GPs in low deprivation areas. Patients living in high deprivation areas reported lower satisfaction with access and consultation quality than patients in low deprivation areas. These differences in GP and patient satisfaction persisted after adjusting for confounding variables. CONCLUSIONS: Lower GP work satisfaction in deprived areas was mirrored by lower patient satisfaction. These findings add to the evidence that the inverse care law persists in Scotland, over 50 years after it was first described.


Asunto(s)
Médicos Generales , Humanos , Satisfacción del Paciente , Satisfacción en el Trabajo , Estudios Transversales , Factores Socioeconómicos , Encuestas y Cuestionarios , Escocia
9.
Sex Transm Infect ; 98(1): 53-57, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-33441446

RESUMEN

OBJECTIVES: To review characteristics of individuals newly diagnosed with HIV following implementation of a national pre-exposure prophylaxis (PrEP) programme (comprehensive PrEP services, delivered in sexual health clinics) to inform future delivery and broader HIV prevention strategies. METHODS: We extracted data from national HIV databases (July 2015-June 2018). We compared sociodemographic characteristics of individuals diagnosed in the period before and after PrEP implementation, and determined the proportion of 'potentially preventable' infections with the sexual health clinic-based PrEP delivery model used. RESULTS: Those diagnosed with HIV before PrEP implementation were more likely to be male (342/418, 81.8% vs 142/197, 72.1%, p=0.005), be white indigenous (327/418, 78.2% vs 126/197, 64.0%, p<0.001), report transmission route as sex between men (219/418, 52.4% vs 81/197, 41.1%, p=0.014), and have acquired HIV in the country of the programme (302/418, 72.2% vs 114/197, 57.9% p<0.001) and less likely to report transmission through heterosexual sex (114/418, 27.3% vs 77/197, 39.1%, p=0.002) than after implementation.Pre-implementation, 8.6% (36/418) diagnoses were 'potentially preventable' with the PrEP model used. Post-implementation, this was 6.6% (13/197), but higher among those with recently acquired HIV (49/170, 28.8%). Overall, individuals with 'potentially preventable' infections were more likely to be male (49/49, 100% vs 435/566, 76.9%, p<0.001), aged <40 years (37/49, 75.5% vs 307/566, 54.2%, p=0.004), report transmission route as sex between men (49/49, 100% vs 251/566, 44.3%, p<0.001), have previously received post-exposure prophylaxis (12/49, 24.5% vs 7/566, 1.2%, p<0.001) and less likely to be black African (0/49, 0% vs 67/566, 11.8%, p=0.010) than those not meeting this definition. CONCLUSIONS: The sexual health clinic-based national PrEP delivery model appeared to best suit men who have sex with men and white indigenous individuals but had limited reach into other key vulnerable groups. Enhanced models of delivery and HIV combination prevention are required to widen access to individuals not benefiting from PrEP at present.


Asunto(s)
Infecciones por VIH/prevención & control , Implementación de Plan de Salud/normas , Profilaxis Pre-Exposición/métodos , Profilaxis Pre-Exposición/normas , Adulto , Bases de Datos Factuales , Femenino , Infecciones por VIH/diagnóstico , Implementación de Plan de Salud/métodos , Implementación de Plan de Salud/estadística & datos numéricos , Homosexualidad Masculina/estadística & datos numéricos , Humanos , Masculino , Persona de Mediana Edad , Profilaxis Pre-Exposición/organización & administración , Estudios Retrospectivos , Parejas Sexuales , Adulto Joven
10.
J Neuropsychiatry Clin Neurosci ; 34(1): 77-83, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34711068

RESUMEN

Noncommunicable diseases are the leading cause of worldwide death and disability and continue to increase in both developed and developing countries. There is a need to address and treat neuropsychiatric disorders in low-income countries, especially in the Horn of Africa. Capacity building by training local doctors and health care workers is a laborious endeavor, with challenges piling up along the way. Nevertheless, the rewards are great when brain specialists who are able to address the needs in their country and treat their fellow citizens receive the training needed to do so effectively. The present article describes a coordinated administrative, educational, and clinical effort to develop and implement a dual residency program in psychiatry and neurology at the University of Hargeisa in Somaliland. The authors highlight the foundations of the program and the challenges faced during its development and implementation in an area of regional conflict. The program provides evidence that this aim is achievable and serves as a model for others seeking to replicate it in other low- and middle-income countries.


Asunto(s)
Internado y Residencia , Neurología , Psiquiatría , Hospitales Generales , Humanos
11.
Age Ageing ; 51(12)2022 12 05.
Artículo en Inglés | MEDLINE | ID: mdl-36580390

RESUMEN

BACKGROUND: care homes collect extensive data about their residents, and their care, in multiple ways, for multiple purposes. We aimed to (i) identify what data are routinely collected and (ii) collate care home managers' views and experiences of collecting, using and sharing data. METHODS: we examined data collected in six care homes across Lothian, Scotland. We extracted the meta-data, cross-referenced definitions and assessed the degree of harmonisation between care homes and with data sets currently in use in Scotland and internationally. We interviewed care home managers about their views and experiences of collecting, using and sharing data. RESULTS: we identified 15 core data items used routinely, with significant heterogeneity in tools and assessments used, and very limited harmonisation. Two overarching themes were identified of importance to the development of a care home data platform: (i) the rationale for collecting data, including to (a) support person-centred care, (b) share information, (c) manage workforce and budget and (d) provide evidence to statutory bodies and (ii) the reality of collecting data, including data accuracy, and understanding data in context. DISCUSSION: considerable information is collected by care home staff, in varied formats, with heterogeneity of scope and definition, for range of reasons. We discuss the issues that should be considered to ensure that individual resident-level form the strong foundations for any data platform for care homes, which must also include, robust infrastructure and clear interoperability, with appropriate governance. It must be co-produced by academics, policy makers and sector representatives, with residents, their families and care staff.


Asunto(s)
Casas de Salud , Atención Dirigida al Paciente , Humanos , Escocia
12.
Health Expect ; 25(6): 2700-2708, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36181716

RESUMEN

BACKGROUND: Multimorbidity (the co-existence of two or more long-term conditions within an individual) is a complex management challenge, with a very limited evidence base. Theories can help in the design and operationalization of complex interventions. OBJECTIVE: This article proposes self-determination theory (SDT) as a candidate theory for the development and evaluation of interventions in multimorbidity. METHODS: We provide an overview of SDT, its use in research to date, and its potential utility in complex interventions for patients with multimorbidity based on the new MRC framework. RESULTS: SDT-based interventions have mainly focused on health behaviour change in the primary prevention of disease, with limited use in primary care and chronic conditions management. However, SDT may be a useful candidate theory in informing complex intervention development and evaluation, both in randomized controlled trials and in evaluations of 'natural experiments'. We illustrate how it could be used multimorbidity interventions in primary care by drawing on the example of CARE Plus (a primary care-based complex intervention for patients with multimorbidity in deprived areas of Scotland). CONCLUSIONS: SDT may have utility in both the design and evaluation of complex interventions for multimorbidity. Further research is required to establish its usefulness, and limitations, compared with other candidate theories. PATIENT OR PUBLIC CONTRIBUTION: Our funded research programme, of which this paper is an early output, has a newly embedded patient and public involvement group of four members with lived experience of long-term conditions and/or of being informal carers. They read and commented on the draft manuscript and made useful suggestions on the text. They will be fully involved at all stages in the rest of the programme of research.


Asunto(s)
Multimorbilidad , Autonomía Personal , Humanos , Enfermedad Crónica , Atención Primaria de Salud , Escocia
13.
Matern Child Health J ; 26(5): 1142-1152, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35298743

RESUMEN

OBJECTIVES: Mothers are especially vulnerable to the onset or recurrence of psychological symptoms during the postpartum period. However, protective psychosocial factors may provide a stress buffering effect and promote a positive adjustment trajectory. Previous research has demonstrated the importance of positive maternal adjustment for maternal mental health and child outcome. However, research is needed that explores (1) the psychosocial components of maternal adjustment, (2) the process of maternal adjustment as subjectively experienced by mothers, and (3) clinical targets that can help postpartum healthcare teams to facilitate positive adjustment during the perinatal period. METHODS: This qualitative study utilized thematic analysis in order to understand the dimensions and properties of themes related to maternal adjustment. Through narrative interviews, this study investigated processes associated with maternal adjustment in a sample of n = 23 mothers receiving obstetric care. RESULTS: Thematic analysis uncovered three key developmental processes: (1) "Stretching Identity; Transitioning Roles", (2) "Navigating Stressors; Approaching Self-Efficacy", and (3) "Changing Relationships; Strengthening Support." Negative maternal self-attributions emerged as a key target for supportive intervention. Each process is complex and susceptible to both downward and upward spirals, consistent with the broaden-and-build theory of positive emotion. CONCLUSIONS FOR PRACTICE: Negative maternal attributions of self are discussed as a key target precipitating postpartum adjustment trajectories. Given this, parenting interventions that teach cognitive reappraisal or mindfulness strategies may be especially beneficial for mothers in the perinatal period.


Asunto(s)
Periodo Posparto , Estrés Psicológico , Femenino , Humanos , Recién Nacido , Madres/psicología , Responsabilidad Parental/psicología , Parto/psicología , Periodo Posparto/psicología , Embarazo , Estrés Psicológico/psicología
14.
Proc Natl Acad Sci U S A ; 116(27): 13320-13329, 2019 07 02.
Artículo en Inglés | MEDLINE | ID: mdl-31209056

RESUMEN

Cyclic AMP (cAMP) phosphodiesterase-4 (PDE4) enzymes degrade cAMP and underpin the compartmentalization of cAMP signaling through their targeting to particular protein complexes and intracellular locales. We describe the discovery and characterization of a small-molecule compound that allosterically activates PDE4 long isoforms. This PDE4-specific activator displays reversible, noncompetitive kinetics of activation (increased Vmax with unchanged Km), phenocopies the ability of protein kinase A (PKA) to activate PDE4 long isoforms endogenously, and requires a dimeric enzyme assembly, as adopted by long, but not by short (monomeric), PDE4 isoforms. Abnormally elevated levels of cAMP provide a critical driver of the underpinning molecular pathology of autosomal dominant polycystic kidney disease (ADPKD) by promoting cyst formation that, ultimately, culminates in renal failure. Using both animal and human cell models of ADPKD, including ADPKD patient-derived primary cell cultures, we demonstrate that treatment with the prototypical PDE4 activator compound lowers intracellular cAMP levels, restrains cAMP-mediated signaling events, and profoundly inhibits cyst formation. PDE4 activator compounds thus have potential as therapeutics for treating disease driven by elevated cAMP signaling as well as providing a tool for evaluating the action of long PDE4 isoforms in regulating cAMP-mediated cellular processes.


Asunto(s)
Fosfodiesterasas de Nucleótidos Cíclicos Tipo 4/metabolismo , Animales , Línea Celular , AMP Cíclico/metabolismo , Proteínas Quinasas Dependientes de AMP Cíclico/metabolismo , Fosfodiesterasas de Nucleótidos Cíclicos Tipo 4/efectos de los fármacos , Perros , Activación Enzimática/efectos de los fármacos , Humanos , Células de Riñón Canino Madin Darby , Fosforilación , Enfermedades Renales Poliquísticas/metabolismo , Isoformas de Proteínas
15.
Euro Surveill ; 27(15)2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35426362

RESUMEN

On 31 March 2022, Public Health Scotland was alerted to five children aged 3-5 years admitted to hospital with severe hepatitis of unknown aetiology. Retrospective investigation identified eight additional cases aged 10 years and younger since 1 January 2022. Two pairs of cases have epidemiological links. Common viral hepatitis causes were excluded in those with available results. Five children were adenovirus PCR-positive. Other childhood viruses, including SARS-CoV-2, have been isolated. Investigations are ongoing, with new cases still presenting.


Asunto(s)
COVID-19 , Hepatitis A , Niño , Preescolar , Humanos , Estudios Retrospectivos , SARS-CoV-2 , Escocia/epidemiología
16.
N Engl J Med ; 379(26): 2529-2539, 2018 12 27.
Artículo en Inglés | MEDLINE | ID: mdl-30586509

RESUMEN

BACKGROUND: Plumbing systems are an infrequent but known reservoir for opportunistic microbial pathogens that can infect hospitalized patients. In 2016, a cluster of clinical sphingomonas infections prompted an investigation. METHODS: We performed whole-genome DNA sequencing on clinical isolates of multidrug-resistant Sphingomonas koreensis identified from 2006 through 2016 at the National Institutes of Health (NIH) Clinical Center. We cultured S. koreensis from the sinks in patient rooms and performed both whole-genome and shotgun metagenomic sequencing to identify a reservoir within the infrastructure of the hospital. These isolates were compared with clinical and environmental S. koreensis isolates obtained from other institutions. RESULTS: The investigation showed that two isolates of S. koreensis obtained from the six patients identified in the 2016 cluster were unrelated, but four isolates shared more than 99.92% genetic similarity and were resistant to multiple antibiotic agents. Retrospective analysis of banked clinical isolates of sphingomonas from the NIH Clinical Center revealed the intermittent recovery of a clonal strain over the past decade. Unique single-nucleotide variants identified in strains of S. koreensis elucidated the existence of a reservoir in the hospital plumbing. Clinical S. koreensis isolates from other facilities were genetically distinct from the NIH isolates. Hospital remediation strategies were guided by results of microbiologic culturing and fine-scale genomic analyses. CONCLUSIONS: This genomic and epidemiologic investigation suggests that S. koreensis is an opportunistic human pathogen that both persisted in the NIH Clinical Center infrastructure across time and space and caused health care-associated infections. (Funded by the NIH Intramural Research Programs.).


Asunto(s)
Infección Hospitalaria/microbiología , Reservorios de Enfermedades/microbiología , Infecciones por Bacterias Gramnegativas/microbiología , Ingeniería Sanitaria , Sphingomonas/genética , Antibacterianos/farmacología , Hospitales Federales , Humanos , Metagenómica , Pruebas de Sensibilidad Microbiana , National Institutes of Health (U.S.) , Estudios Retrospectivos , Sphingomonas/efectos de los fármacos , Sphingomonas/aislamiento & purificación , Estados Unidos , Abastecimiento de Agua , Secuenciación Completa del Genoma
17.
J Clin Microbiol ; 59(3)2021 02 18.
Artículo en Inglés | MEDLINE | ID: mdl-33262219

RESUMEN

We evaluated saliva (SAL) specimens for SARS-CoV-2 reverse transcriptase PCR (RT-PCR) testing by comparison of 459 prospectively paired nasopharyngeal (NP) or midturbinate (MT) swabs from 449 individuals with the aim of using saliva for asymptomatic screening. Samples were collected in a drive-through car line for symptomatic individuals (n = 380) and in the emergency department (ED) (n = 69). The percentages of positive and negative agreement of saliva compared to nasopharyngeal swab were 81.1% (95% confidence interval [CI], 65.8% to 90.5%) and 99.8% (95% CI, 98.7% to 100%), respectively. The percent positive agreement increased to 90.0% (95% CI, 74.4% to 96.5%) when considering only samples with moderate to high viral load (cycle threshold [CT ] for the NP, ≤34). Pools of five saliva specimens were also evaluated on three platforms, bioMérieux NucliSENS easyMAG with ABI 7500Fast (CDC assay), Hologic Panther Fusion, and Roche Cobas 6800. The average loss of signal upon pooling was 2 to 3 CT values across the platforms. The sensitivities of detecting a positive specimen in a pool compared with testing individually were 94%, 90%, and 94% for the CDC 2019-nCoV real-time RT-PCR, Panther Fusion SARS-CoV-2 assay, and Cobas SARS-CoV-2 test, respectively, with decreased sample detection trending with lower viral load. We conclude that although pooled saliva testing, as collected in this study, is not quite as sensitive as NP/MT testing, saliva testing is adequate to detect individuals with higher viral loads in an asymptomatic screening program, does not require swabs or viral transport medium for collection, and may help to improve voluntary screening compliance for those individuals averse to various forms of nasal collections.


Asunto(s)
Prueba de Ácido Nucleico para COVID-19/métodos , COVID-19/diagnóstico , Tamizaje Masivo/métodos , SARS-CoV-2/aislamiento & purificación , Saliva/virología , Humanos , Nasofaringe , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Manejo de Especímenes/métodos
18.
MMWR Recomm Rep ; 69(6): 1-8, 2020 07 24.
Artículo en Inglés | MEDLINE | ID: mdl-32701942

RESUMEN

Exposure to hepatitis viruses is a recognized occupational risk for health care personnel (HCP). This report establishes new CDC guidance that includes recommendations for a testing algorithm and clinical management for HCP with potential occupational exposure to hepatitis C virus (HCV). Baseline testing of the source patient and HCP should be performed as soon as possible (preferably within 48 hours) after the exposure. A source patient refers to any person receiving health care services whose blood or other potentially infectious material is the source of the HCP's exposure. Two options are recommended for testing the source patient. The first option is to test the source patient with a nucleic acid test (NAT) for HCV RNA. This option is preferred, particularly if the source patient is known or suspected to have recent behaviors that increase risk for HCV acquisition (e.g., injection drug use within the previous 4 months) or if risk cannot be reliably assessed. The second option is to test the source patient for antibodies to hepatitis C virus (anti-HCV), then if positive, test for HCV RNA. For HCP, baseline testing for anti-HCV with reflex to a NAT for HCV RNA if positive should be conducted as soon as possible (preferably within 48 hours) after the exposure and may be simultaneous with source-patient testing. If follow-up testing is recommended based on the source patient's status (e.g., HCV RNA positive or anti-HCV positive with unavailable HCV RNA or if the HCV infection status is unknown), HCP should be tested with a NAT for HCV RNA at 3-6 weeks postexposure. If HCV RNA is negative at 3-6 weeks postexposure, a final test for anti-HCV at 4-6 months postexposure is recommended. A source patient or HCP found to be positive for HCV RNA should be referred to care. Postexposure prophylaxis of hepatitis C is not recommended for HCP who have occupational exposure to blood and other body fluids. This guidance was developed based on expert opinion (CDC. Updated U.S. Public Health Service guidelines for the management of occupational exposures to HBV, HCV, and HIV and recommendations for postexposure prophylaxis. MMWR Recommend Rep 2001;50[No. RR-11]; Supplementary Figure, https://stacks.cdc.gov/view/cdc/90288) and reflects updated guidance from professional organizations that recommend treatment for acute HCV infection. Health care providers can use this guidance to update their procedures for postexposure testing and clinical management of HCP potentially exposed to hepatitis C virus.


Asunto(s)
Personal de Salud , Hepatitis C/prevención & control , Transmisión de Enfermedad Infecciosa de Paciente a Profesional/prevención & control , Exposición Profesional , Centers for Disease Control and Prevention, U.S. , Hepacivirus/genética , Hepacivirus/aislamiento & purificación , Hepatitis C/transmisión , Humanos , Profilaxis Posexposición , Guías de Práctica Clínica como Asunto , ARN Viral/análisis , Estados Unidos , United States Public Health Service
19.
Age Ageing ; 50(1): 176-182, 2021 01 08.
Artículo en Inglés | MEDLINE | ID: mdl-32687158

RESUMEN

BACKGROUND: little is known about the relationship between multimorbidity and social care use (also known as long-term care). The aim of this study was to assess the relationship between receipt of formal social care services and multimorbidity. METHODS: this retrospective data linkage, observational study included all individuals over the age of 65 in the population of Scotland in financial years 2014-15 and 2015-16 (n = 975,265). The main outcome was receipt of social care measured by presence in the Scottish Social Care Survey. Logistic regression models were used to assess the influence of multimorbidity, age, sex and socioeconomic position on the outcome reporting average marginal effects (AME). FINDINGS: 93.3% of those receiving social care had multimorbidity, 16.2% of those with multimorbidity received social care compared with 3.7% of those without. The strongest magnitudes of AME for receiving social care were seen for age and multimorbidity (respectively, 50 and 18% increased probability comparing oldest to youngest and most severe multimorbidity to none). A 5.5% increased probability of receiving social care was observed for the most-deprived compared with the least-deprived. INTERPRETATION: higher levels of social care receipt are observed in those with increasing age, severe multimorbidity and living in more deprived areas. Multimorbidity does not fully moderate the relationship between social care receipt and either age or deprivation.


Asunto(s)
Multimorbilidad , Apoyo Social , Anciano , Enfermedad Crónica , Estudios Transversales , Humanos , Estudios Retrospectivos , Escocia/epidemiología
20.
Qual Life Res ; 30(6): 1665-1674, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33523402

RESUMEN

BACKGROUND: Despite decades of de-institutionalization and the best efforts of community mental health services, individuals with schizophrenia living outside the hospital may be described as in the community but not of the community, and remain in a very real sense socially excluded. AIM AND OBJECTIVES: To determine the relationship between social integration and quality of life among patients with schizophrenia attending the outpatient clinic of the Neuropsychiatric Hospital Abeokuta in Nigeria. METHODS: One hundred and fifty-one patients were recruited. Sociodemographic questionnaire, MINI-PLUS, WHOQOL-BREF, Social Integration Scale and PANSS were administered. Multivariable regression analyses were performed to identify the determinants of quality of life and the relationship with social integration. RESULTS: The mean (± SD) age of the respondents was 40.00 (± 10.23), 56.3% were males, 37.1% were single. Independent predictors of lower quality of life were: (1) more severe psychopathology for the domains of general health (p = 0.003), social relationship (p = 0.019) and environment (p = 0.008); (2) longer duration of illness for the social relationship (p = 0.028) and environment (p = 0.015) domains; and (3) negative symptoms (p = 0.034) for the physical domain. CONCLUSION: There is a need to pay closer attention to social outcome measures such as quality of life and level of social integration among patients with schizophrenia who come in contact with psychiatry services, and not just on symptom remission only.


Asunto(s)
Relaciones Interpersonales , Calidad de Vida/psicología , Esquizofrenia/terapia , Psicología del Esquizofrénico , Integración Social , Adulto , Desinstitucionalización/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Nigeria , Psicometría , Encuestas y Cuestionarios , Centros de Atención Terciaria , Adulto Joven
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