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2.
Int J Qual Health Care ; 33(4)2021 Oct 20.
Artículo en Inglés | MEDLINE | ID: mdl-34613386

RESUMEN

BACKGROUND: Clinical registry participation is a measure of healthcare quality. Limited knowledge exists on Australian hospitals' participation in clinical registries and whether this registry data informs quality improvement initiatives. OBJECTIVE: To identify participation in clinical registries, determine if registry data inform quality improvement initiatives, and identify registry participation enablers and clinicians' educational needs to improve use of registry data to drive practice change. METHODS: A self-administered survey was distributed to staff coordinating registries in seven hospitals in New South Wales, Australia. Eligible registries were international-, national- and state-based clinical, condition-/disease-specific and device/product registries. RESULTS: Response rate was 70% (97/139). Sixty-two (64%) respondents contributed data to 46 eligible registries. Registry reports were most often received by nurses (61%) and infrequently by hospital executives (8.4%). Less than half used registry data 'always' or 'often' to influence practice improvement (48%) and care pathways (49%). Protected time for data collection (87%) and benchmarking (79%) were 'very likely' or 'likely' to promote continued participation. Over half 'strongly agreed' or 'agreed' that clinical practice improvement training (79%) and evidence-practice gap identification (77%) would optimize use of registry data. CONCLUSIONS: Registry data are generally only visible to local speciality units and not routinely used to inform quality improvement. Centralized on-going registry funding, accessible and transparent integrated information systems combined with data informed improvement science education could be first steps to promote quality data-driven clinical improvement initiatives.


Asunto(s)
Mejoramiento de la Calidad , Datos de Salud Recolectados Rutinariamente , Australia , Estudios Transversales , Humanos , Sistema de Registros , Encuestas y Cuestionarios
3.
J Virol ; 94(21)2020 10 14.
Artículo en Inglés | MEDLINE | ID: mdl-32817211

RESUMEN

In 2014, the Centre for Health Protection in Hong Kong introduced screening for influenza C virus (ICV) as part of its routine surveillance for infectious agents in specimens collected from patients presenting with symptoms of respiratory viral infection, including influenza-like illness (ILI). A retrospective analysis of ICV detections up to week 26 of 2019 revealed persistent low-level circulation, with two outbreaks having occurred in the winters of 2015 to 2016 and 2017 to 2018. These outbreaks occurred at the same time as, and were dwarfed by, seasonal epidemics of influenza types A and B. Gene sequencing studies on stored ICV-positive clinical specimens from the two outbreaks have shown that the hemagglutinin-esterase (HE) genes of the viruses fall into two of the six recognized genetic lineages (represented by C/Kanagawa/1/76 and C/São Paulo/378/82), with there being significant genetic drift compared to earlier circulating viruses within both lineages. The location of a number of encoded amino acid substitutions in hemagglutinin-esterase fusion (HEF) glycoproteins suggests that antigenic drift may also have occurred. Observations of ICV outbreaks in other countries, with some of the infections being associated with severe disease, indicates that ICV infection has the potential to have significant clinical and health care impacts in humans.IMPORTANCE Influenza C virus infection of humans is common, and reinfection can occur throughout life. While symptoms are generally mild, severe disease cases have been reported, but knowledge of the virus is limited, as little systematic surveillance for influenza C virus is conducted and the virus cannot be studied by classical virologic methods because it cannot be readily isolated in laboratories. A combination of systematic surveillance in Hong Kong SAR, China, and new gene sequencing methods has been used in this study to assess influenza C virus evolution and provides evidence for a 2-year cycle of disease outbreaks. The results of studies like that reported here are key to developing an understanding of the impact of influenza C virus infection in humans and how virus evolution might be associated with epidemics.


Asunto(s)
Brotes de Enfermedades , Gammainfluenzavirus/genética , Hemaglutininas Virales/genética , Gripe Humana/epidemiología , Mutación , Proteínas Virales de Fusión/genética , Adolescente , Adulto , Anciano , Sustitución de Aminoácidos , Niño , Preescolar , Monitoreo Epidemiológico , Femenino , Expresión Génica , Hemaglutininas Virales/química , Hemaglutininas Virales/metabolismo , Secuenciación de Nucleótidos de Alto Rendimiento , Hong Kong/epidemiología , Humanos , Lactante , Gripe Humana/patología , Gripe Humana/virología , Gammainfluenzavirus/enzimología , Masculino , Persona de Mediana Edad , Modelos Moleculares , Epidemiología Molecular , Filogenia , Conformación Proteica en Hélice alfa , Conformación Proteica en Lámina beta , Estudios Retrospectivos , Proteínas Virales de Fusión/química , Proteínas Virales de Fusión/metabolismo
6.
J Vet Med Educ ; 46(4): 506-517, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30806557

RESUMEN

Over the past several decades, non-technical competencies have been given an increasing amount of emphasis in veterinary medical training. However, additional research is needed to continue understanding the role that non-technical competencies play in veterinary success and wellness. An inter-related pair of non-technical competencies that needs further empirical investigation is communication and the influence of compassion on veterinarians. This research study investigated the relationship between compassion experiences and communication styles of fourth-year veterinarians-in-training using a canonical correlation analysis. The compassion fatigue resilience (CFR) model was the theoretical framework used to conceptualize how communication behaviors may contribute to compassion fatigue and compassion satisfaction. Compassion experiences were measured using a version of the Professional Quality of Life (ProQOL) scale. Communication style was measured using the Communication Styles Inventory (CSI). Results indicated that communication style is statistically significantly related to compassion experiences (n = 281; Function 1, Rc = .552, p < .001; Function 2, Rc = .369, p < .001). Compassion fatigue was found to have a statistically significant association with the communication styles of emotionality (r = .467, p < .001), impression manipulativeness (r = .191, p = .001), and verbal aggressiveness (r = .239, p = .001). Results indicated support for veterinary training programs to continue adapting their curricula to include communication training and intervention programs to address communication and compassion fatigue, as well as to consider how the relationship between these two constructs may influence the wellness and success of veterinarians-in-training and veterinarians. More research is needed to understand the role of impression manipulativeness in veterinary wellness.


Asunto(s)
Agotamiento Profesional , Desgaste por Empatía , Educación en Veterinaria , Estudiantes de Medicina/psicología , Veterinarios , Animales , Comunicación , Empatía , Humanos , Calidad de Vida , Encuestas y Cuestionarios , Veterinarios/psicología
7.
Brain ; 140(6): 1595-1610, 2017 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-28549128

RESUMEN

Although mitochondrial disorders are clinically heterogeneous, they frequently involve the central nervous system and are among the most common neurogenetic disorders. Identifying the causal genes has benefited enormously from advances in high-throughput sequencing technologies; however, once the defect is known, researchers face the challenge of deciphering the underlying disease mechanism. Here we characterize large biallelic deletions in the region encoding the ATAD3C, ATAD3B and ATAD3A genes. Although high homology complicates genomic analysis of the ATAD3 defects, they can be identified by targeted analysis of standard single nucleotide polymorphism array and whole exome sequencing data. We report deletions that generate chimeric ATAD3B/ATAD3A fusion genes in individuals from four unrelated families with fatal congenital pontocerebellar hypoplasia, whereas a case with genomic rearrangements affecting the ATAD3C/ATAD3B genes on one allele and ATAD3B/ATAD3A genes on the other displays later-onset encephalopathy with cerebellar atrophy, ataxia and dystonia. Fibroblasts from affected individuals display mitochondrial DNA abnormalities, associated with multiple indicators of altered cholesterol metabolism. Moreover, drug-induced perturbations of cholesterol homeostasis cause mitochondrial DNA disorganization in control cells, while mitochondrial DNA aggregation in the genetic cholesterol trafficking disorder Niemann-Pick type C disease further corroborates the interdependence of mitochondrial DNA organization and cholesterol. These data demonstrate the integration of mitochondria in cellular cholesterol homeostasis, in which ATAD3 plays a critical role. The dual problem of perturbed cholesterol metabolism and mitochondrial dysfunction could be widespread in neurological and neurodegenerative diseases.


Asunto(s)
Adenosina Trifosfatasas/genética , Cerebelo/anomalías , ADN Mitocondrial/genética , Proteínas de la Membrana/genética , Enfermedades Mitocondriales/genética , Proteínas Mitocondriales/genética , Malformaciones del Sistema Nervioso/genética , ATPasas Asociadas con Actividades Celulares Diversas , Adulto , Cerebelo/diagnóstico por imagen , Cerebelo/fisiopatología , Consanguinidad , Discapacidades del Desarrollo/diagnóstico por imagen , Discapacidades del Desarrollo/genética , Discapacidades del Desarrollo/fisiopatología , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Enfermedades Mitocondriales/diagnóstico por imagen , Enfermedades Mitocondriales/fisiopatología , Malformaciones del Sistema Nervioso/diagnóstico por imagen , Malformaciones del Sistema Nervioso/fisiopatología
8.
PLoS Pathog ; 13(3): e1006282, 2017 03.
Artículo en Inglés | MEDLINE | ID: mdl-28306742

RESUMEN

To clarify E1^E4's role during high-risk HPV infection, the E4 proteins of HPV16 and 18 were compared side by side using an isogenic keratinocyte differentiation model. While no effect on cell proliferation or viral genome copy number was observed during the early phase of either virus life cycle, time-course experiments showed that viral genome amplification and L1 expression were differently affected upon differentiation, with HPV16 showing a much clearer E4 dependency. Although E4 loss never completely abolished genome amplification, its more obvious contribution in HPV16 focused our efforts on 16E4. As previously suggested, in the context of the virus life cycle, 16E4s G2-arrest capability was found to contribute to both genome amplification success and L1 accumulation. Loss of 16E4 also lead to a reduced maintenance of ERK, JNK and p38MAPK activity throughout the genome amplifying cell layers, with 16E4 (but not 18E4) co-localizing precisely with activated cytoplasmic JNK in both wild type raft tissue, and HPV16-induced patient biopsy tissue. When 16E1 was co-expressed with E4, as occurs during genome amplification in vivo, the E1 replication helicase accumulated preferentially in the nucleus, and in transient replication assays, E4 stimulated viral genome amplification. Interestingly, a 16E1 mutant deficient in its regulatory phosphorylation sites no longer accumulated in the nucleus following E4 co-expression. E4-mediated stabilisation of 16E2 was also apparent, with E2 levels declining in organotypic raft culture when 16E4 was absent. These results suggest that 16E4-mediated enhancement of genome amplification involves its cell cycle inhibition and cellular kinase activation functions, with E4 modifying the activity and function of viral replication proteins including E1. These activities of 16E4, and the different kinase patterns seen here with HPV18, 31 and 45, may reflect natural differences in the biology and tropisms of these viruses, as well as differences in E4 function.


Asunto(s)
Puntos de Control del Ciclo Celular/genética , Genoma Viral , Papillomavirus Humano 16/genética , Proteínas Oncogénicas Virales/metabolismo , Replicación Viral/genética , Células Cultivadas , Activación Enzimática , Técnica del Anticuerpo Fluorescente , Amplificación de Genes , Papillomavirus Humano 16/crecimiento & desarrollo , Papillomavirus Humano 18/genética , Papillomavirus Humano 18/crecimiento & desarrollo , Humanos , Immunoblotting , Inmunohistoquímica , Hibridación Fluorescente in Situ , Queratinocitos/virología , Estadios del Ciclo de Vida , Mutagénesis Sitio-Dirigida , Reacción en Cadena en Tiempo Real de la Polimerasa
9.
Acta Paediatr ; 104(2): 158-66, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25358870

RESUMEN

AIM: Despite the importance of neonatal skin stimulation, little is known about activation of the newborn human infant brain by sensory stimulation of the skin. We carried out functional magnetic resonance imaging (fMRI) to assess the feasibility of measuring brain activation to a range of mechanical stimuli applied to the skin of neonatal infants. METHODS: We studied 19 term infants with a mean age of 13 days. Brain activation was measured in response to brushing, von Frey hair (vFh) punctate stimulation and, in one case, nontissue damaging pinprick stimulation of the plantar surface of the foot. Initial whole brain analysis was followed by region of interest analysis of specific brain areas. RESULTS: Distinct patterns of functional brain activation were evoked by brush and vFh punctate stimulation, which were reduced, but still present, under chloral hydrate sedation. Brain activation increased with increasing stimulus intensity. The feasibility of using pinprick stimulation in fMRI studies was established in one unsedated healthy full-term infant. CONCLUSION: Distinct brain activity patterns can be measured in response to different modalities and intensities of skin sensory stimulation in term infants. This indicates the potential for fMRI studies in exploring tactile and nociceptive processing in the infant brain.


Asunto(s)
Encéfalo/fisiología , Recién Nacido/fisiología , Imagen por Resonancia Magnética , Nocicepción/fisiología , Hidrato de Cloral , Estudios de Factibilidad , Femenino , Humanos , Hipnóticos y Sedantes , Masculino , Estimulación Física
10.
J Virol ; 86(11): 6358-64, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22457518

RESUMEN

Infection with human papillomavirus type 16 (HPV-16) can lead to low- or high-grade squamous intraepithelial lesions (LSIL or HSIL). Here we show that these in vivo disease states can be replicated in raft cultures of early-pass HPV-16 episomal cell lines, at both the level of pathology and the level of viral gene expression. A reduced responsiveness to cell-cell contact inhibition and an increase in E6/E7 activity correlated closely with phenotype. Similar deregulation is likely to underlie the appearance of LSIL or HSIL soon after infection.


Asunto(s)
Carcinoma in Situ/virología , Inhibición de Contacto , Papillomavirus Humano 16/patogenicidad , Proteínas Oncogénicas Virales/metabolismo , Proteínas E7 de Papillomavirus/metabolismo , Proteínas Represoras/metabolismo , Neoplasias del Cuello Uterino/virología , Factores de Virulencia/metabolismo , Células Cultivadas , Femenino , Humanos , Técnicas In Vitro
11.
J Virol ; 85(19): 9984-97, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21752901

RESUMEN

The human papillomavirus (HPV) type 16 E1^E4 (16E1^E4) protein is expressed in the middle to upper layers of infected epithelium and has several roles within the virus life cycle. It is apparent that within the epithelium there are multiple species of 16E1^E4 that differ in length and/or degree of phosphorylation and that some or all of these can associate with the cellular keratin networks, leading to network disruption. We show here that the cellular cysteine protease calpain cleaves the 16E1^E4 protein after amino acid 17 to generate species that lack the N terminus. These C-terminal fragments are able to multimerize and form amyloid-like fibers. This can lead to accumulation of 16E1^E4 and disruption of the normal dynamics of the keratin networks. The cleavage of E1^E4 proteins by calpain may be a common strategy used by α-group viruses, since we show that cleavage of type 18 E1^E4 in raft culture is also dependent on calpain. Interestingly, the cleavage of 16E1^E4 by calpain appears to be highly regulated as differentiation of HPV genome-containing cells by methylcellulose is insufficient to induce cleavage. We hypothesize that this is important since it ensures that the formation of the amyloid fibers is not prematurely triggered in the lower layers and is restricted to the upper layers, where calpain is active and where disruption of the keratin networks may aid virus release.


Asunto(s)
Amiloide/metabolismo , Calpaína/metabolismo , Interacciones Huésped-Patógeno , Papillomavirus Humano 16/crecimiento & desarrollo , Queratinas/metabolismo , Proteínas de Fusión Oncogénica/metabolismo , Multimerización de Proteína , Proteínas Virales/metabolismo , Humanos
12.
Am Anthropol ; 113(4): 606-18, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-22216425

RESUMEN

Here I explore how the experience of place at a First Nations reserve in Ontario, located in the middle of Canada's "Chemical Valley," is disrupted by the extraordinary levels of pollution found there. In so doing, I give special attention to air pollution and residents' responses to associated odors - that is, to the sense of smell. Focusing on a unique feature of smell - that it operates primarily through indexicality - I draw on C. S. Peirce's semiotic framework to highlight ways in which perception of odors entails embodiment of the perceived substance, thus connecting self and surroundings in profound and transformative ways. Ultimately, I argue that the local smellscape, while having reinforced a sense of positive emplacement on the reserve in the past, is now, because of the constant presence of toxic fumes, instilling in residents a profound sense of alienation from the ancestral landscape - a condition I call "dysplacement."


Asunto(s)
Exposición a Riesgos Ambientales , Contaminantes Ambientales , Indígenas Norteamericanos , Salud Pública , Características de la Residencia , Olfato , Antropología Cultural/educación , Antropología Cultural/historia , Canadá/etnología , Exposición a Riesgos Ambientales/economía , Exposición a Riesgos Ambientales/historia , Exposición a Riesgos Ambientales/legislación & jurisprudencia , Política Ambiental/economía , Política Ambiental/historia , Política Ambiental/legislación & jurisprudencia , Contaminantes Ambientales/economía , Contaminantes Ambientales/historia , Contaminación Ambiental/economía , Contaminación Ambiental/historia , Contaminación Ambiental/legislación & jurisprudencia , Historia del Siglo XX , Historia del Siglo XXI , Humanos , Indígenas Norteamericanos/educación , Indígenas Norteamericanos/etnología , Indígenas Norteamericanos/historia , Indígenas Norteamericanos/legislación & jurisprudencia , Indígenas Norteamericanos/psicología , Salud Pública/economía , Salud Pública/educación , Salud Pública/historia , Salud Pública/legislación & jurisprudencia , Características de la Residencia/historia
13.
J Cell Sci ; 123(Pt 16): 2810-22, 2010 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-20663917

RESUMEN

The keratin IF network of epidermal keratinocytes provides a protective barrier against mechanical insult, it is also a major player in absorbing stress in these cells. The human papilloma virus (HPV) type 16 E1--E4 protein accumulates in the upper layers of HPV16-infected epithelium and is known to associate with and reorganise the keratin IF network in cells in culture. Here, we show that this function is conserved amongst a number of HPV alpha-group E1--E4 proteins and that the differentiation-dependent keratins are also targeted. Using time-lapse microscopy, HPV16 E1--E4 was found to effect a dramatic cessation of keratin IF network dynamics by associating with both soluble and insoluble keratin. Network disruption was accompanied by keratin hyperphosphorylation at several sites, including K8 S73, which is typically phosphorylated in response to stress stimuli. Keratin immunoprecipitated from E1--E4-expressing cells was also found to be ubiquitylated, indicating that it is targeted for proteasomal degradation. Interestingly, the accumulation of hyperphosphorylated, ubiquitylated E1--E4-keratin structures was found to result in an impairment of proteasomal function. These observations shed new light on the mechanism of keratin IF network reorganisation mediated by HPV16 E1--E4 and provide an insight into the depletion of keratin co-incident with E1--E4 accumulation observed in HPV-infected epithelium.


Asunto(s)
Queratinas/metabolismo , Proteínas de Fusión Oncogénica/metabolismo , Infecciones por Papillomavirus/metabolismo , Proteínas Virales/metabolismo , Secuencia de Aminoácidos , Línea Celular Transformada , Epitelio/metabolismo , Epitelio/virología , Humanos , Datos de Secuencia Molecular , Papillomaviridae/metabolismo , Fosforilación , Ubiquitinación
14.
J Natl Med Assoc ; 102(12): 1222-30, 2010 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-21287903

RESUMEN

OBJECTIVES: Most research on perceptions of health insurance has examined gender- and race-based differences across sections of the adult population. This is the first study to examine differences based on demographic characteristics of undergraduate college students' coverage and perceptions of health insurance. METHODS: The participants were undergraduates at 12 of the 13 public universities in Ohio. Valid and reliable 40-item questionnaires (n = 1800) were equally distributed to faculty at 12 public universities. RESULTS: A total of 1367 (70%) surveys were completed. Most students (59.9%) believed that the federal government should have the primary responsibility to ensure that Americans have health insurance and 53.3% felt that the best way was through universal health insurance from the federal government. Perceptions varied by race, political affiliation, and health insurance status. CONCLUSIONS: Undergraduate students appear to have formed opinions about health insurance similar to general adult populations. These perceptions may have been obtained by transfer of perceptions from family and friends. A more formalized undergraduate education approach to educating future leaders of society regarding health insurance should be considered. Policy changes to reduce disparities in health status among groups of college students must be explored.


Asunto(s)
Seguro de Salud/estadística & datos numéricos , Estudiantes/psicología , Universidades , Adolescente , Adulto , Distribución de Chi-Cuadrado , Femenino , Humanos , Cobertura del Seguro/estadística & datos numéricos , Masculino , Pacientes no Asegurados/estadística & datos numéricos , Ohio , Encuestas y Cuestionarios
15.
Virology ; 394(2): 266-75, 2009 Nov 25.
Artículo en Inglés | MEDLINE | ID: mdl-19783272

RESUMEN

The E4 (also called E1--E4) and E2 proteins of human papillomavirus type 16 are thought to be expressed within the same cells of a lesion, and their open reading frames overlap, suggesting that they may have a functional relationship. We have examined the effect of co-expression of these two proteins and found that each enhances the level of the other. We also identified the N-terminus of E2 as the first example of a viral protein that directly binds the HPV16 E1--E4 protein. This appears to result in the E2 becoming less soluble and promotes its relocation from the nucleus to the cytoplasm. In addition, the turnover of the E2 protein is decreased in the presence of E1--E4. All this raises the possibility that E1--E4 acts to influence E2 activity by varying the amount of available E2 in the cell.


Asunto(s)
Proteínas de Unión al ADN/química , Proteínas de Unión al ADN/metabolismo , Papillomavirus Humano 16/metabolismo , Proteínas de Fusión Oncogénica/química , Proteínas de Fusión Oncogénica/metabolismo , Proteínas Oncogénicas Virales/química , Proteínas Oncogénicas Virales/metabolismo , Proteínas Virales/química , Proteínas Virales/metabolismo , Secuencia de Aminoácidos , Secuencia de Bases , Línea Celular , Cartilla de ADN/genética , ADN Viral/genética , Proteínas de Unión al ADN/genética , Escherichia coli/genética , Papillomavirus Humano 16/genética , Humanos , Datos de Secuencia Molecular , Proteínas de Fusión Oncogénica/genética , Proteínas Oncogénicas Virales/genética , Dominios y Motivos de Interacción de Proteínas , Estabilidad Proteica , Proteínas Recombinantes de Fusión/química , Proteínas Recombinantes de Fusión/genética , Proteínas Recombinantes de Fusión/metabolismo , Transfección , Proteínas Virales/genética
16.
J Virol ; 82(16): 8196-203, 2008 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-18562538

RESUMEN

The abundant human papillomavirus (HPV) type 16 E4 protein exists as two distinct structural forms in differentiating epithelial cells. Monomeric full-length 16E1--E4 contains a limited tertiary fold constrained by the N and C termini. N-terminal deletions facilitate the assembly of E1--E4 into amyloid-like fibrils, which bind to thioflavin T. The C-terminal region is highly amyloidogenic, and its deletion abolishes amyloid staining and prevents E1--E4 accumulation. Amyloid-imaging probes can detect 16E1--E4 in biopsy material, as well as 18E1--E4 and 33E1--E4 in monolayer cells, indicating structural conservation. Our results suggest a role for fibril formation in facilitating the accumulation of E1--E4 during HPV infection.


Asunto(s)
Papillomavirus Humano 16/metabolismo , Secuencia de Aminoácidos , Animales , Biopsia , Células COS , Chlorocebus aethiops , Eliminación de Gen , Humanos , Datos de Secuencia Molecular , Conformación Proteica , Pliegue de Proteína , Estructura Secundaria de Proteína , Estructura Terciaria de Proteína , Homología de Secuencia de Aminoácido
18.
Br J Nurs ; 16(1): 8-10, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17353828

RESUMEN

In October 2004 a request was made to the Royal Centre for Defence Medicine to support a pilot project for a leading Midlands medical school. The aim of the project was to standardize clinical skills training for medical students prior to House Officer jobs. Experienced military emergency nurses provided clinical training including cannulation, catheterization and phlebotomy in a simulated environment. All fifth year medical students attending clinical skills training were invited to complete post-training evaluation questionnaires. The project was evaluated positively and there was an excellent response to nurses training doctors. There was a statistically significant improvement in post-training confidence. All medical students passed their practical assessment following the training programme. This pilot project has been highly successful and has subsequently been extended to all fifth year students at the medical school. The range of clinical skills taught by nurses has also been widened.


Asunto(s)
Competencia Clínica , Educación de Pregrado en Medicina/organización & administración , Medicina de Emergencia/educación , Medicina Militar/educación , Personal de Enfermería en Hospital/organización & administración , Preceptoría/organización & administración , Actitud del Personal de Salud , Cateterismo/normas , Competencia Clínica/normas , Curriculum , Guías como Asunto , Humanos , Maniquíes , Investigación en Educación de Enfermería , Personal de Enfermería en Hospital/psicología , Flebotomía/normas , Relaciones Médico-Enfermero , Proyectos Piloto , Evaluación de Programas y Proyectos de Salud , Autoeficacia , Estudiantes de Medicina/psicología , Encuestas y Cuestionarios
20.
Virology ; 349(1): 230-44, 2006 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-16540140

RESUMEN

The human papillomavirus type 16 E1--E4 protein is expressed abundantly in cells supporting viral DNA amplification, but its expression is lost during malignant progression. In cell culture, 16E1--E4 causes G2 cell cycle arrest by associating with and preventing the nuclear entry of Cdk1/cyclin B1 complexes. Here, we show that 16E1--E4 is also able to associate with cyclin A and Cdk2 during the G2 phase of the cell cycle. Only a weak association was apparent during S-phase, and progression through S-phase appeared unaffected. As with cyclin B1, the interaction of 16E1--E4 with cyclin A is dependent on residues T22/T23 and results in the accumulation of cyclin A in the cytoplasm where it colocalizes with 16E1--E4. 16E1--E4 serine 32 was found to be phosphorylated by Cdk2/cyclin A. We hypothesize that the interaction of 16E1--E4 with cyclin A may serve to increase the efficiency with which 16E1--E4 is able to prevent mitotic entry.


Asunto(s)
Ciclina A/metabolismo , Quinasa 2 Dependiente de la Ciclina/metabolismo , Papillomavirus Humano 16/fisiología , Proteínas de Fusión Oncogénica/metabolismo , Proteínas Virales/metabolismo , Secuencia de Aminoácidos , Sustitución de Aminoácidos , Western Blotting , Ciclo Celular , Línea Celular , Citoplasma/química , Humanos , Microscopía Confocal , Microscopía Fluorescente , Microscopía de Contraste de Fase , Datos de Secuencia Molecular , Mutagénesis Sitio-Dirigida , Fosforilación , Unión Proteica , Mapeo de Interacción de Proteínas , Transporte de Proteínas , Serina/metabolismo
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