RESUMEN
BACKGROUND: For students to feel happy and supported in school, it is important that their views are taken seriously and integrated into school policies. However, limited information is available how the voices of immigrant students are considered in European school contexts. This study generated evidence from written documents to ascertain how student voice practices are described at school websites. METHODS: Between 2 March and 8 April 2021, we reviewed the policy documents publicly available on school websites. The schools located in areas of high immigration in six European countries: Austria, England, Finland, Germany, Romania, and Switzerland. The READ approach was used to guide the steps in the document analysis in the context of policy studies (1) ready the materials, 2) data extraction, 3) data analysis, 4) distil the findings). A combination of qualitative and quantitative approaches with descriptive statistics (n, %, Mean, SD, range) was used for analysis. RESULTS: A total of 412 documents (305 schools) were extracted. Based on reviewing school websites, reviewers'strongly agreed' in seven documents (2%) that information related to seeking student voices could be easily found. On the contrary, in 247 documents (60%), reviewers strongly indicated that information related to seeking student voices was missing. No clear characteristics could be specified to identify those schools were hearing students' voices is well documented. The most common documents including statements related to student voice were anti-bullying or violence prevention strategies (75/412) and mission statements (72/412). CONCLUSIONS: Our document analysis based on publicly accessible school websites suggest that student voices are less frequently described in school written policy documents. Our findings provide a baseline to further monitor activities, not only at school level but also to any governmental and local authorities whose intention is to serve the public and openly share their values and practices with community members. A deeper understanding is further needed about how listening to student voices is realized in daily school practices.
Asunto(s)
Emigrantes e Inmigrantes , Instituciones Académicas , Humanos , Estudiantes , Políticas , ViolenciaRESUMEN
IMPORTANCE: The transactions between the physical environment and children's play have not been well studied. The theory of affordances provides a way to better understand how environmental characteristics offer opportunities for play occupation. OBJECTIVE: To investigate the relationship between environmental characteristics of outdoor play spaces and children's outdoor play and to develop an environmental taxonomy to support the analysis of play affordances in community play spaces. DATA SOURCES: Peer-reviewed literature (1974-2023) was sourced from a previously published scoping review (Morgenthaler, Schulze, et al., 2023). The Academic Search Complete, Avery Index to Architectural Periodicals, CINAHL, MEDLINE, PsycINFO, Scopus, and Web of Science databases were searched using the keywords and synonyms of playground, environmental qualities, and children with and without disabilities. STUDY SELECTION AND DATA COLLECTION: A secondary analysis of the previously published scoping review was conducted. Included studies were those that provided descriptions of physical environment-play activity transactions. FINDINGS: A qualitative content analysis of 45 articles was conducted and used to form an environmental taxonomy. This taxonomy consisted of 14 space and object categories defined by their functional qualities and linked to play affordances. An array of 284 play occupations were identified in different forms. Play affordances of spaces and object categories and their functional environmental qualities were subsequently identified. CONCLUSIONS AND RELEVANCE: This study provides evidence to support the understanding of how the physical environment shapes children's outdoor play occupations. Plain-Language Summary: The study authors developed the Environmental Taxonomy of Outdoor Play Space Features as a tool that occupational therapists can use to better understand and describe how the physical environment shapes opportunities for play. The tool could also be useful to justify environmental intervention in schools and public playgrounds to create spaces that support more play for a diversity of children.
Asunto(s)
Juego e Implementos de Juego , Humanos , Niño , Planificación Ambiental , Ambiente , Niños con DiscapacidadRESUMEN
BACKGROUND: The Uganda version of Pediatric Evaluation of Disability Inventory (PEDI-UG) was culturally adapted and validated from the PEDI-US, a tool used to evaluate the functional capability of children with or without disability aged 6 months to 7.5 years in the areas of self-care, mobility and social domains. A group of Ugandan occupational therapists with experience of using PEDI-UG participated in this study to explore the question: What do Ugandan occupational therapists say about the utility and value of the PEDI-UG for children with disabilities? METHODS: A qualitative research design was chosen to explore the participants' viewpoints concerning the utility and value of the PEDI-UG for children with disabilities. Purposive sampling was used to recruit health professionals for the focus group discussions. Focus group discussions were carried out with 18 occupational therapists and nurses. Thematic analysis was performed to establish patterns and themes. RESULTS: Several challenges concerning the contextual use of PEDI-UG were reported. For example, PEDI-UG being culturally adapted in two languages (English and Luganda) makes it difficult for health professionals to use it for children whose caregivers are non-English or non-Luganda speakers. In addition, participants reported adapting the way they asked the assessment questions, struggling with how they interpreted the scores and observing the child's skills if required during PEDI-UG interviews with caregivers. CONCLUSIONS: The findings of this study suggest that health professionals are challenged with the use of the PEDI-UG assessment in diverse cultural contexts and/or languages. These challenges are important considerations for the PEDI-UG translation in different Uganda cultural languages and training health professionals on the use and value of PEDI-UG for children with disabilities.
Asunto(s)
Niños con Discapacidad , Niño , Humanos , Uganda , Terapeutas Ocupacionales , Actividades Cotidianas , Evaluación de la Discapacidad , Reproducibilidad de los ResultadosRESUMEN
The current S3 guideline entitled "Strategies to warrant rational in-hospital use of antibiotics" summarizes evidence-based antibiotic stewardship (ABS) measures that aim to improve clinical outcomes and prevent development and spread of microbial resistance in German hospitals. Most important prerequisite for efficiency and safety of ABS programs is sufficient staffing capacity as well as reliably operating surveillance of (i) pathogens, (ii) antimicrobial resistance and (iii) consumption of antimicrobials. ABS teams require authorization by hospital institutions as units exclusively responsible for antimicrobial audits and implementation of anti-infective interventions. Clinicians should be regularly granted access to in-hospital training programs delivered by ABS experts. Finally yet importantly, the current S3 guideline also highlights future goals, e.g., the structured involvement for nurses in ABS-guided infection management or the promotion of ABS programs in the outpatient sector and in veterinary medicine.
Asunto(s)
Antiinfecciosos , Programas de Optimización del Uso de los Antimicrobianos , Antibacterianos/uso terapéutico , Hospitales , HumanosRESUMEN
BACKGROUND: Motor deficiencies are observed in a large number of children with ADHD. Especially fine motor impairments can lead to academic underachievement, low self-esteem and frustration in affected children. Despite these far-reaching consequences, fine motor deficiencies have remained widely undertreated in the ADHD population. The aim of this review was to systematically map the evidence on existing training programs for remediating fine motor impairments in children with ADHD and to assess their effectiveness. METHODS: The scoping review followed the PRISMA-ScR guidelines. In March 2020, PsycINFO, MEDLINE (PubMed), Web of Science, Google Scholar and The Cochrane Database of Systematic Reviews were searched for evidence. The eligibility criteria and the data charting process followed the PICO framework, complemented by study design. The investigated population included children with a formal ADHD diagnosis (either subtype) or elevated ADHD symptoms aged between 4 and 12 years, both on and off medication. All training interventions aiming at improving fine motor skills, having a fine motor component or fine motor improvements as a secondary outcome were assessed for eligibility; no comparators were specified. RESULTS: Twelve articles were included in the final report, comprising observational and experimental studies as well as a review. Both offline and online or virtual training interventions were reported, often accompanied by physical activity and supplemented by training sessions at home. The training programs varied in length and intensity, but generally comprised several weeks and single or multiple training sessions per week. All interventions including more than one session were effective in the treatment of fine motor deficiencies in children with ADHD and had a wide range of additional positive outcomes. The effects could be maintained at follow-up. CONCLUSIONS: Fine motor training in children with ADHD can be very effective and multiple approaches including specific fine motor and cognitive training components, some kind of physical activity, feedback mechanisms, or multimodal treatments can be successful. Training programs need to be tailored to the specific characteristics of the ADHD population. A mHealth approach using serious games could be promising in this context due to its strong motivational components.
Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Trastorno por Déficit de Atención con Hiperactividad/terapia , Niño , Preescolar , Escolaridad , Humanos , Proyectos de InvestigaciónRESUMEN
BACKGROUND: Concepts such as participation and environment may differ across cultures. Consequently, to use a measure like the Participation and Environment Measure for Children and Youth (PEM-CY) in other than the original English-speaking contexts, cultural adaptation needs to be assured. The aim of this study was to cross-culturally translate and adapt the PEM-CY into German as it is used in Germany, Austria and Switzerland. METHODS: Fifteen parents of children and adolescents with disabilities from three German speaking countries participated in three rounds of think-aloud interviews. We followed the procedure of cultural equivalence guidelines including two additional steps. Data was analyzed by content analysis using semantic, idiomatic, experiential and conceptual equivalence. RESULTS: Results show adaptations mainly focused on experiential and conceptual equivalence, with conceptual equivalence being the most challenging to reach. Examples of experiential equivalence included adapting the examples of activities in the PEM-CY to reflect those typical in German speaking countries. Conceptual equivalence mainly addressed aspects of "involvement" and "environment" of children and adolescents and was reached through adaptations such as enhanced instructions and structures, and additional definitions. CONCLUSIONS: This study presents a cross-cultural translation and adaptation process to develop a German version of the PEM-CY that is suitable for Germany, Austria and Switzerland. Using a modified cultural adaptation process, a culturally adapted version of PEM-CY (German) is now available for research, practice and further validation.
Asunto(s)
Comparación Transcultural , Adolescente , Austria , Niño , Alemania , Humanos , Psicometría , Encuestas y Cuestionarios , SuizaRESUMEN
Background: Human immunodeficiency virus (HIV) infection is an independent risk factor for coronary heart disease (CHD) and is associated with perturbation of the gut microbiota. Methods: We analyzed gut microbiota in 30 HIV-infected individuals with CHD (CHD+) and 30 without CHD (CHD-) of the HIV-HEART study group. Results: Gut microbiota linked to CHD was associated with lower α-diversity. Despite insignificant differences in ß-diversity, co-occurrence networks of bacterial genera clearly diverged between CHD+ and CHD- individuals. Multidimensional scaling separated HIV-infected individuals into 2 microbiome clusters, dominated by the genus Prevotella or Bacteroides. The relative abundance of 49 other genera was significantly different between both clusters. The Prevotella-rich cluster was largely composed of men who have sex with men (MSM) (97%), whereas the Bacteroides-rich cluster comprised both MSM (45%) and heterosexual individuals (55%). MSM of the Bacteroides-rich cluster were characterized by reduced α-diversity, advanced immunological HIV stage, longer antiretroviral therapy with more ART regimens, and longer use of protease inhibitors, compared with Prevotella-rich MSM. Conclusions: Community structures of gut microbiota rather than individual species might facilitate risk assessment of CHD in HIV-infected individuals. Sexual behavior appears to be an important factor affecting gut microbiota ß-diversity and should be considered in future studies.
Asunto(s)
Biodiversidad , Enfermedad Coronaria/complicaciones , Microbioma Gastrointestinal , Infecciones por VIH/complicaciones , Adulto , Anciano , Bacteroides/genética , Bacteroides/aislamiento & purificación , Bacteroides/patogenicidad , Femenino , Homosexualidad Masculina , Humanos , Masculino , Metilaminas/farmacología , Metilaminas/uso terapéutico , Persona de Mediana Edad , Prevotella/genética , Prevotella/aislamiento & purificación , Prevotella/patogenicidad , Factores de Riesgo , Conducta Sexual , Minorías Sexuales y de GéneroRESUMEN
Understanding how plants cope with changing habitats is a timely and important topic in plant research. Phenotypic plasticity describes the capability of a genotype to produce different phenotypes when exposed to different environmental conditions. In contrast, the constant production of a set of distinct phenotypes by one genotype mediates bet hedging, a strategy that reduces the temporal variance in fitness at the expense of a lowered arithmetic mean fitness. Both phenomena are thought to represent important adaptation strategies to unstable environments. However, little is known about the underlying mechanisms of these phenomena, partly due to the lack of suitable model systems. We used phylogenetic and comparative analyses of fruit and seed anatomy, biomechanics, physiology, and environmental responses to study fruit and seed heteromorphism, a typical morphological basis of a bet-hedging strategy of plants, in the annual Brassicaceae species Aethionema arabicum Our results indicate that heteromorphism evolved twice within the Aethionemeae, including once for the monophyletic annual Aethionema clade. The dimorphism of Ae. arabicum is associated with several anatomic, biomechanical, gene expression, and physiological differences between the fruit and seed morphs. However, fruit ratios and numbers change in response to different environmental conditions. Therefore, the life-history strategy of Ae. arabicum appears to be a blend of bet hedging and plasticity. Together with the available genomic resources, our results pave the way to use this species in future studies intended to unravel the molecular control of heteromorphism and plasticity.
Asunto(s)
Brassicaceae/embriología , Frutas/embriología , Semillas/embriología , Brassicaceae/anatomía & histología , Brassicaceae/genética , Brassicaceae/ultraestructura , Regulación hacia Abajo/genética , Frutas/genética , Frutas/ultraestructura , Regulación del Desarrollo de la Expresión Génica , Regulación de la Expresión Génica de las Plantas , Genes del Desarrollo , Genes de Plantas , Germinación/genética , Modelos Biológicos , Fenotipo , Filogenia , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Dispersión de Semillas , Semillas/genética , Semillas/ultraestructura , Homología de Secuencia de AminoácidoRESUMEN
OBJECTIVES: Prolonged QT interval is associated with arrhythmias and sudden death. An increased prevalence of QT interval prolongation in human immunodeficiency virus-infected (HIV) subjects was previously described. The impact of different medications and HIV infection itself on the QT interval is rarely investigated in large HIV+ cohorts. METHODS: We compared QT interval measurement in 496 HIV(+) patients of the HIV-HEART study (HIVH) and 992 sex- and age-matched controls of the population-based German Heinz Nixdorf Recall study (HNR). QT corrected for heart rate (QTc) >440 ms in male and >460 ms in female was considered pathological. We analysed the impact of HIV status and HIV medication on QTc prolongation in the HIVH subjects. RESULTS: We observed longer QTc in HIVH subjects compared with HNR controls: 424.1 ms ± 23.3 vs. 411.3 ± 15.3 ms for male and 435.5 ms ± 19.6 vs. 416.4 ms ± 17.3 for female subjects (p < 0.0001 for both sexes). Adjusting for QT prolonging medication the mean differences in QTc between the two studies remained significant with 12.6 ms (95% CI 10.5-14.8; p value <0.0001) for male and 19.3 ms (95% CI 14.5-24.2; p value <0.0001) for female subjects. Prolongation of QTc was pathologic in 22.8 vs. 3.9% of HIV(+) and non-infected males and in 12.1 vs. 1.8% of the females [OR of 7.9 (5.0-12.6) and OR of 6.7 (1.8-24.2), respectively]. Smoking behaviour was an independent factor to lengthen QTc in HIV(+) patients. Diabetes mellitus was not a risk factor itself, but might be associated with medication which was associated with LQT. We could not observe any influence of the HIV status, ART, or any co-medication on the QTc. CONCLUSIONS: Our study showed that HIV(+) patients had significantly longer QTc intervals compared to the general population. The number of patients with pathologic QTc prolongation was significantly increased in HIV(+) population.
Asunto(s)
Infecciones por VIH/complicaciones , Frecuencia Cardíaca/efectos de los fármacos , Síndrome de QT Prolongado/epidemiología , Anciano , Estudios de Casos y Controles , Electrocardiografía , Femenino , Alemania/epidemiología , Infecciones por VIH/tratamiento farmacológico , Humanos , Síndrome de QT Prolongado/etiología , Masculino , Persona de Mediana Edad , Prevalencia , Factores de RiesgoRESUMEN
Two-pore channels (TPCs) constitute a family of endolysosomal cation channels with functions in Ca²âº signaling. We used a mutational analysis to investigate the role of channel domains for the trafficking of the Arabidopsis TPC1 to the tonoplast, a process that is generally not well understood in plants. The results show that the soluble C-terminus was not essential for targeting but for channel function, while further C-terminal truncations of two or more transmembrane domains impaired protein trafficking. An N-terminal dileucine motif (EDPLI) proved to be critical for vacuolar targeting of TPC1, which was independent of the adaptor protein AP-3. Deletion or mutation of this sorting motif, which is conserved among TPCs caused redirection of the protein transport to the plasma membrane. An N-terminal region with a predicted α-helical structure was shown to support efficient vacuolar trafficking and was essential for TPC1 function. Similar to their localization in mammalian endosomes and lysosomes, MmTPC1 and MmTPC2 were targeted to small organelles and the membrane of the lytic vacuole, respectively, when expressed in plant cells. These results shed new light on the largely uncharacterized sorting signals of plant tonoplast proteins and reveal similarities between the targeting machinery of plants and mammals.
Asunto(s)
Proteínas de Arabidopsis/química , Proteínas de Arabidopsis/metabolismo , Canales de Calcio/química , Canales de Calcio/metabolismo , Señales de Clasificación de Proteína , Complejo 3 de Proteína Adaptadora/fisiología , Arabidopsis/metabolismo , Proteínas de Arabidopsis/genética , Canales de Calcio/genética , Señalización del Calcio , Línea Celular , Microscopía Fluorescente , Técnicas de Placa-Clamp , Transporte de ProteínasRESUMEN
ABSTRACT Activities of daily living (ADL) of children are widely assessed with the Pediatric Evaluation Disability Inventory (PEDI). This study examined test-retest and inter-rater reliability of the German PEDI (PEDI-G). During the adaptation of the PEDI nine items were added. In total, 117 parents of 53 children without and 64 children with a diagnosed physical disability from Austria, Germany, and Switzerland participated. Reliability was examined by intraclass correlation coefficient (ICC), standard error of measurement (SEM) and smallest detectable difference (SDD) for the Functional Skill Scale with and without added items and the Caregiver Assistance Scale. Cohen`s Kappa was used to calculate the reliability of the Modification Scale. All ICC's for test-retest and inter-rater reliability were above 0.75, indicating good to very good reliability. The SDD varied from 0.83-5.58 across PEDI domains and scales. For the Modification Scale, Cohen's weighted kappa varied from 0.25 to 1.00 indicating sufficient reliability for some but not all items. Our findings indicate that the Functional Skill Scale and the Caregiver Assistance Scale of the PEDI-G are reliable scales that can be used to evaluate ADLs of children with and without physical disability.
RESUMEN
Meta-[123I]iodobenzylguanidine ([123I]MIBG) scintigraphy with SPECT/CT is the standard of care for diagnosing and monitoring neuroblastoma. Replacing [123I]MIBG with the new PET tracer meta-[18F]fluorobenzylguanidine ([18F]MFBG) and further improving sensitivity and reducing noise in a new long-axial-field-of-view (LAFOV) PET/CT scanner enable increased image quality and a faster acquisition time, allowing examinations to be performed without sedation or general anesthesia (GA). Focusing on feasibility, we present our first experience with [18F]MFBG LAFOV PET/CT and compare it with [123I]MIBG scintigraphy plus SPECT/CT for imaging in neuroblastoma in children. Methods: A pilot of our prospective, single-center study recruited children with neuroblastoma who were referred for [123I]MIBG scintigraphy with SPECT/CT. Within 1 wk of [123I]MIBG scintigraphy and SPECT/low-dose CT, [18F]MFBG LAFOV PET/ultra-low-dose CT was performed 1 h after injection (1.5-3 MBq/kg) without sedation or GA, in contrast to the 24-h postinjection interval needed for scanning with [123I]MIBG, the 2- to 2.5-h acquisition time, and the GA often needed in children less than 6 y old. Based on the spirocyclic iodonium-ylide precursor, [18F]MFBG was produced in a fully automated good manufacturing practice-compliant procedure. We present the feasibility of the study. Results: In the first paired scans of the first 10 children included (5 at diagnosis, 2 during treatment, 2 during surveillance, and 1 at relapse), [18F]MFBG PET/CT scan showed a higher number of radiotracer-avid lesions in 80% of the cases and an equal number of lesions in 20% of the cases. The SIOPEN score was higher in 50% of the cases, and the Curie score was higher in 70% of the cases. In particular, intraspinal, retroperitoneal lymph node, and bone marrow involvement was diagnosed with much higher precision. None of the children (median age, 1.6 y; range, 0.1-7.9 y) had sedation or GA during the PET procedure, whereas 80% had GA during [123I]MIBG scintigraphy with SPECT/CT. A PET acquisition time of only 2 min without motion artifacts was the data requirement of the 10-min acquisition time for reconstruction to provide a clinically useful image. Conclusion: This pilot study demonstrates the feasibility of performing [18F]MFBG LAFOV PET/CT for imaging of neuroblastoma. Further, an increased number of radiotracer-avid lesions, an increased SIOPEN score, and an increased Curie score were seen on [18F]MFBG LAFOV PET/CT compared with [123I]MIBG scintigraphy with SPECT/CT, and GA and sedation was avoided in all patients. Thus, with a 1-d protocol, a significantly shorter scan time, a higher sensitivity, and the avoidance of GA and sedation, [18F]MFBG LAFOV PET/CT shows promise for future staging and response assessment and may also have a clinical impact on therapeutic decision-making for children with neuroblastoma.
Asunto(s)
Anestesia General , Neuroblastoma , Tomografía Computarizada por Tomografía de Emisión de Positrones , Neuroblastoma/diagnóstico por imagen , Humanos , Preescolar , Femenino , Masculino , Niño , Tomografía Computarizada por Tomografía de Emisión de Positrones/métodos , Lactante , 3-Yodobencilguanidina , Guanidinas , Estudios Prospectivos , Proyectos Piloto , RadiofármacosRESUMEN
For children, playgrounds are important environments. However, children's perspectives are often not acknowledged in playground provision, design, and evaluation. This scoping review aimed to summarize the users' (children with and without disabilities) perspectives on environmental qualities that enhance their play experiences in community playgrounds. Published peer-reviewed studies were systematically searched in seven databases from disciplines of architecture, education, health, and social sciences; 2905 studies were screened, and the last search was performed in January 2023. Included studies (N = 51) were charted, and a qualitative content analysis was conducted. Five themes were formed which provided insights into how both physical and social environmental qualities combined provide for maximum play value in outdoor play experiences. These multifaceted play experiences included the desire for fun, challenge, and intense play, the wish to self-direct play, and the value of playing alone as well as with known people and animals. Fundamentally, children wished for playgrounds to be children's places that were welcoming, safe, and aesthetically pleasing. The results are discussed in respect to social, physical, and atmospheric environmental affordances and the adult's role in playground provision. This scoping review represents the valuable insights of children regardless of abilities and informs about how to maximise outdoor play experiences for all children.
Asunto(s)
Exactitud de los Datos , Juego e Implementos de Juego , Ciencias Sociales , EscolaridadRESUMEN
Background: Concepts such as participation and environment may differ across cultures. Consequently, cultural equivalence must be assured when using a measure like the Young Children Participation and Environment Measure (YC-PEM) in other settings than the original English-speaking contexts. This study aimed to cross-culturally translate and adapt the YC-PEM into German as it is used in Germany, Austria, and Switzerland. Methods: Following international guidelines, two translations were compared, and the research and expert team made the first adaptations. Twelve caregivers of children with and without disabilities from three German-speaking countries participated in two rounds of think-aloud interviews. Data were analyzed by content analysis to look for item, semantic, operational, conceptual, and measurement equivalence to reach a cultural equivalence version in German. Results: Adaptations were needed in all fields but prominently in item, operational, and conceptual equivalence. Operational equivalence resulted in graphical adaptations in the instructions and questions to make the German version of YC-PEM, YC-PEM (G), more user-friendly. Conclusion: This study presents a cross-cultural translation and adaptation process to develop a German version of the YC-PEM suitable for Germany, Austria, and Switzerland. A culturally adapted YC-PEM (G) is now available for research, practice, and further validation.
RESUMEN
Digital health interventions (DHIs) are increasingly used to address the health of migrants and ethnic minorities, some of whom have reduced access to health services and worse health outcomes than majority populations. This study aims to give an overview of digital health interventions developed for ethnic or cultural minority and migrant populations, the health problems they address, their effectiveness at the individual level and the degree of participation of target populations during development. We used the methodological approach of the scoping review outlined by Tricco. We found a total of 2248 studies, of which 57 were included, mostly using mobile health technologies, followed by websites, informational videos, text messages and telehealth. Most interventions focused on illness self-management, mental health and wellbeing, followed by pregnancy and overall lifestyle habits. About half did not involve the target population in development and only a minority involved them consistently. The studies we found indicate that the increased involvement of the target population in the development of digital health tools leads to a greater acceptance of their use.
Asunto(s)
Grupos Minoritarios , Telemedicina , Grupos Minoritarios/psicología , Salud Mental , Necesidades y Demandas de Servicios de SaludRESUMEN
We performed a systematic evaluation of the diagnostic performance of LAFOV PET/CT with increasing acquisition time. The first 100 oncologic adult patients referred for 3 MBq/kg 2-[18F]fluoro-2-deoxy-D-glucose PET/CT on the Siemens Biograph Vision Quadra were included. A standard imaging protocol of 10 min was used and scans were reconstructed at 30 s, 60 s, 90 s, 180 s, 300 s, and 600 s. Paired comparisons of quantitative image noise, qualitative image quality, lesion detection, and lesion classification were performed. Image noise (n = 50, 34 women) was acceptable according to the current standard of care (coefficient-of-varianceref < 0.15) after 90 s and improved significantly with increasing acquisition time (PB < 0.001). The same was seen in observer rankings (PB < 0.001). Lesion detection (n = 100, 74 women) improved significantly from 30 s to 90 s (PB < 0.001), 90 s to 180 s (PB = 0.001), and 90 s to 300 s (PB = 0.002), while lesion classification improved from 90 s to 180 s (PB < 0.001), 180 s to 300 s (PB = 0.021), and 90 s to 300 s (PB < 0.001). We observed improved image quality, lesion detection, and lesion classification with increasing acquisition time while maintaining a total scan time of less than 5 min, which demonstrates a potential clinical benefit. Based on these results we recommend a standard imaging acquisition protocol for LAFOV PET/CT of minimum 180 s to maximum 300 s after injection of 3 MBq/kg 2-[18F]fluoro-2-deoxy-D-glucose.
RESUMEN
Two-pore channels (TPC) have been established as components of calcium signalling networks in plants and animals. In plants, TPC1 in the vacuolar membrane is gated open upon binding of calcium in a voltage-dependent manner. Here, we analyzed the molecular mechanism of the Ca²âº-dependent activity of TPC1 from Arabidopsis thaliana, using site-directed mutagenesis of its two canonical EF-hands. Wild-type TPC1 and TPC1-D335A with a mutated first Ca²âº ligand in EF-hand 1 produced channels that retained their voltage- and Ca²âº-dependent gating characteristics, but were less sensitive at Ca²âº concentrations < 200 µm. Additional mutation of the first Ca²âº ligand in EF-hand 2 resulted in silent TPC1-D335A/D376A channels. Similarly, the single mutant TPC1-D376A could not be activated up to 1 mm Ca²âº, indicating that the second EF-hand is essential for the Ca²âº-dependent channel gating. Molecular modeling suggests that EF-hand 1 displays a low-affinity Ca²âº/Mg²âº-binding site, while EF-hand 2 represents a high-affinity Ca²âº-binding site. Together, our data prove that EF-hand 2 is responsible for the Ca²âº-receptor characteristics of TPC1, while EF-hand 1 is a structural site required to enable channel responses at physiological changes in Ca²âº concentration.
Asunto(s)
Proteínas de Arabidopsis/metabolismo , Arabidopsis/genética , Canales de Calcio/metabolismo , Señalización del Calcio , Motivos EF Hand , Secuencia de Aminoácidos , Arabidopsis/metabolismo , Proteínas de Arabidopsis/genética , Sitios de Unión , Calcio/metabolismo , Canales de Calcio/genética , Fenómenos Electrofisiológicos , Activación del Canal Iónico , Modelos Moleculares , Datos de Secuencia Molecular , Mutagénesis Sitio-Dirigida , Vacuolas/metabolismoRESUMEN
BACKGROUND: The Pediatric Evaluation of Disability Inventory (PEDI) is an assessment to evaluate children's performance in activities of daily living. AIMS: The study investigated if the normative standard scores of the PEDI are applicable to the German version of the PEDI (PEDI-G) in Germany, Austria and Switzerland, and whether there are differences in the applicability of the PEDI-G between the three countries. MATERIALS AND METHODS: 75 children with normal development (35 girls, 40 boys) from Germany (n = 17), Austria (n = 16), and Switzerland (n = 42) aged between 0.9 month and 7.3 years (SD = 2.03) participated in the study. Descriptive statistics, independent samples t-tests, univariate analyses of variance (ANOVA) and post hoc Tukey tests were applied. RESULTS: No significant differences were identified. However, the German-speaking sample showed higher scores for the domain social function in both scales and in the Caregiver Assistance Scale self-care. Lower scores were identified in the Functional Skills Scale mobility. CONCLUSIONS AND SIGNIFICANCE: The results support that the normative standard scores of the PEDI are applicable to the PEDI-G and for Austria, Germany and Switzerland, as no significant differences between the countries were identified. However, the generalizability of the results is limited due to sample size and recruitment procedures.
Asunto(s)
Actividades Cotidianas , Discapacidades del Desarrollo/diagnóstico , Evaluación de la Discapacidad , Guías como Asunto , Psicometría/normas , Funcionamiento Psicosocial , Estándares de Referencia , Austria , Niño , Preescolar , Comparación Transcultural , Femenino , Alemania , Humanos , Lactante , Recién Nacido , Masculino , Reproducibilidad de los Resultados , Suiza , Estados UnidosRESUMEN
BACKGROUND: Activities of daily living (ADL) are crucial for children because they enable them to participate in everyday life. For the evaluation of children`s ADL performance, health professionals such as occupational therapists use standardized ADL assessments. To implement assessments into practice it is important that the score generated from an assessment can be viewed as a unidimensional measure. AIM: To investigate the factor structure of the German Pediatric Evaluation of Disability Inventory (PEDI-G) in a sample of typically developing children and children with an impairment. MATERIAL AND METHODS: An exploratory factor analysis (EFA) with factor rotation was performed to assess the factor structure for the PEDI-G domains (self-care, mobility and social function) of the Functional Skills Scale and the Caregiver Assistance Scale. RESULTS: 262 children (118 (45%) girls and 144 (55%) boys) participated in this study. Their mean age (SD) was 4 years (SD 1.91). Results suggest that the PEDI domains of the Functional Skills Scale and the Caregivers Assistance Scale can be used as unidimensional measures to evaluate child`s ability to perform activities of daily living. CONCLUSION: The results of this study support the use of the PEDI-G for research and practice in Austria, Germany and Switzerland.
Asunto(s)
Actividades Cotidianas , Evaluación de la Discapacidad , Niño , Preescolar , Análisis Factorial , Femenino , Humanos , Masculino , Psicometría , Reproducibilidad de los ResultadosRESUMEN
BACKGROUND: Inclusive playgrounds aim to enable all children to participate and be socially included on playgrounds through the way they are designed. However, knowledge is lacking about how children with and without disabilities perceive playing on inclusive playgrounds and whether these playgrounds lead to more social inclusion. AIMS/OBJECTIVES: The study explores the experiences of children, with and without disabilities, of playing on inclusive playgrounds. MATERIAL AND METHODS: Semi-structured interviews and observations were conducted on six inclusive playgrounds in Switzerland. Overall, 32 children aged 7-12 years participated; 14 children had a disability while 18 children did not. A qualitative content analysis was used for data analysis. RESULTS: The children's experiences of playing on an inclusive playground resulted in the creation of three categories describing: how children with and without disabilities experience play activities on inclusive playgrounds; invisible barriers on inclusive playgrounds; and the fact that children with disabilities have recommendations for the design of inclusive playgrounds. CONCLUSIONS AND SIGNIFICANCE: The results showed that achieving inclusion on a playground is complex and must be considered as a transaction among different environments. For occupational therapists, this could mean that, to support play as an activity on inclusive playgrounds, intervention is necessary at the community and political levels.