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1.
Stem Cell Res ; 74: 103292, 2024 02.
Artículo en Inglés | MEDLINE | ID: mdl-38154383

RESUMEN

MECP2 Duplication Syndrome (MDS) is a rare, severe neurodevelopmental disorder arising from duplications in the Xq28 region containing the MECP2 gene that predominantly affects males. We generated five human induced pluripotent stem cell (iPSC) lines from the fibroblasts of individuals carrying between 0.355 and 11.2 Mb size duplications in the chromosomal locus containing MECP2. All lines underwent extensive testing to confirm MECP2 duplication and iPSC-related features such as morphology, pluripotency markers, and trilineage differentiation potential. These lines are a valuable resource for molecular and functional studies of MDS as well as screening for a variety of therapeutic approaches.


Asunto(s)
Células Madre Pluripotentes Inducidas , Discapacidad Intelectual Ligada al Cromosoma X , Proteína 2 de Unión a Metil-CpG , Humanos , Masculino , Diferenciación Celular , Duplicación de Gen , Discapacidad Intelectual Ligada al Cromosoma X/genética , Proteína 2 de Unión a Metil-CpG/genética
2.
Rev Gaucha Enferm ; 44: e20230080, 2023.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-38055462

RESUMEN

OBJECTIVE: To conduct the cross-cultural adaptation and evaluate the evidence of content validity of the Adverse Events Associated with Nursing Practices instrument in the Brazilian context. METHOD: Psychometric study, conducted between June 2021 and February 2023, following the stages of the Patient-Reported Outcomes Measurement Information System protocol. Semantic, idiomatic, experimental and conceptual equivalences were evaluated, along with content validity evidence, considering Content Validity Ratio (CVR) parameters, with the participation of 25 experts. RESULTS: A Brazilian version with 55 items was obtained, demonstrating good linguistic equivalence to the original version (agreement rate=99.2%), and adjustments in the items writing. CVR values remained above 0.60. Cognitive testing indicated good understanding, confirmed by the 31 participants in this stage, with a short application time (average = 17 minutes). CONCLUSION: The final version of the instrument showed good linguistic equivalence, strong evidence of content validity and a good response process in the Brazilian context.


Asunto(s)
Comparación Transcultural , Traducciones , Humanos , Encuestas y Cuestionarios , Lenguaje , Brasil , Reproducibilidad de los Resultados
3.
Res Sq ; 2023 Mar 13.
Artículo en Inglés | MEDLINE | ID: mdl-36993518

RESUMEN

Purpose: Patients with non-infectious complications have worse clinical outcomes in common variable immunodeficiency (CVID) than those with infections-only. Non-infectious complications are associated with gut microbiome aberrations, but there are no reductionist animal models that emulate CVID. Our aim in this study was to uncover potential microbiome roles in the development of non-infectious complications in CVID. Methods: We examined fecal whole genome shotgun sequencing from patients CVID, and non-infectious complications, infections-only, and their household controls. We also performed Fecal Microbiota transplant from CVID patients to Germ-Free Mice. Results: We found potentially pathogenic microbes Streptococcus parasanguinis and Erysipelatoclostridium ramosum were enriched in gut microbiomes of CVID patients with non-infectious complications. In contrast, Fusicatenibacter saccharivorans and Anaerostipes hadrus, known to suppress inflammation and promote healthy metabolism, were enriched in gut microbiomes of infections-only CVID patients. Fecal microbiota transplant from non-infectious complications, infections-only, and their household controls into germ-free mice revealed gut dysbiosis patterns in recipients from CVID patients with non-infectious complications, but not infections-only CVID, or household controls recipients. Conclusion: Our findings provide a proof of concept that fecal microbiota transplant from CVID patients with non-infectious complications to Germ-Free mice recapitulates microbiome alterations observed in the donors.

4.
Rev. gaúch. enferm ; 44: e20230080, 2023. tab, graf
Artículo en Inglés | LILACS-Express | LILACS, BDENF - Enfermería | ID: biblio-1522017

RESUMEN

ABSTRACT Objective: To conduct the cross-cultural adaptation and evaluate the evidence of content validity of the Adverse Events Associated with Nursing Practices instrument in the Brazilian context. Method: Psychometric study, conducted between June 2021 and February 2023, following the stages of the Patient-Reported Outcomes Measurement Information System protocol. Semantic, idiomatic, experimental and conceptual equivalences were evaluated, along with content validity evidence, considering Content Validity Ratio (CVR) parameters, with the participation of 25 experts. Results: A Brazilian version with 55 items was obtained, demonstrating good linguistic equivalence to the original version (agreement rate=99.2%), and adjustments in the items writing. CVR values remained above 0.60. Cognitive testing indicated good understanding, confirmed by the 31 participants in this stage, with a short application time (average = 17 minutes). Conclusion: The final version of the instrument showed good linguistic equivalence, strong evidence of content validity and a good response process in the Brazilian context.


RESUMEN Objetivo: Realizar la adaptación transcultural y evaluar las evidencias de validez de contenido del instrumento Eventos Adversos Asociados a las Prácticas de Enfermería en el contexto brasileño. Método: Estudio psicométrico, realizado entre junio de 2021 y febrero de 2023, según los pasos del protocolo del Patient-Reported Outcomes Measurement Information System. Se evaluaron equivalencias semánticas, idiomáticas, experimentales y conceptuales, además de evidencias de validez de contenido, considerando parámetros de Relación de Validez de Contenido (RCV), con 25 participaciones de especialistas. Resultados: Se obtuvo una versión brasileña con 55 ítems, buena equivalencia lingüística a la versión original (tasa de acuerdo=99,2%), y ajustes en la redacción de los ítems. Los valores de RCV se mantuvieron por encima de 0,60. Las pruebas cognitivas indicaron una buena comprensión, confirmada por los 31 participantes en este paso de la investigación, con un tiempo de aplicación corto (promedio = 17 minutos). Conclusión: La versión final del instrumento mostró buena equivalencia lingüística, fuerte evidencia de validez de contenido y buen proceso de respuesta en el contexto brasileño.


RESUMO Objetivo: Realizar a adaptação transcultural e avaliar as evidências de validade de conteúdo do instrumento Eventos Adversos Associados às Práticas de Enfermagem no contexto brasileiro. Método: Estudo psicométrico, realizado entre junho de 2021 e fevereiro de 2023, de acordo com as etapas do protocolo Patient-Reported Outcomes Measurement Information System. Avaliadas as equivalências semântica, idiomática, experimental e conceitual, além das evidências de validade de conteúdo, considerando parâmetros de Content Validity Ratio (CVR), com participação de 25 especialistas. Resultados: Obteve-se versão brasileira com 55 itens, boa equivalência linguística à versão original (taxa de concordância=99,2%), e ajustes na redação dos itens. Os valores de CVR mantiveram-se acima de 0,60. A testagem cognitiva indicou boa compreensão, confirmada pelos 31 participantes dessa etapa, com curto tempo de aplicação (média = 17 minutos). Conclusão: A versão final do instrumento apresentou boa equivalência linguística, fortes evidências de validade de conteúdo e bom processo de resposta no contexto brasileiro.

5.
Biol Psychiatry ; 90(11): 742-755, 2021 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-34344536

RESUMEN

BACKGROUND: Mutations in the X-linked gene DDX3X account for approximately 2% of intellectual disability in females, often comorbid with behavioral problems, motor deficits, and brain malformations. DDX3X encodes an RNA helicase with emerging functions in corticogenesis and synaptogenesis. METHODS: We generated a Ddx3x haploinsufficient mouse (Ddx3x+/- females) with construct validity for DDX3X loss-of-function mutations. We used standardized batteries to assess developmental milestones and adult behaviors, as well as magnetic resonance imaging and immunostaining of cortical projection neurons to capture early postnatal changes in brain development. RESULTS: Ddx3x+/- females showed physical, sensory, and motor delays that evolved into behavioral anomalies in adulthood, including hyperactivity, anxiety-like behaviors, cognitive impairments in specific tasks (e.g., contextual fear memory but not novel object recognition memory), and motor deficits. Motor function declined with age but not if mice were previously exposed to behavioral training. Developmental and behavioral changes were associated with a reduction in brain volume, with some regions (e.g., cortex and amygdala) disproportionally affected. Cortical thinning was accompanied by defective cortical lamination, indicating that Ddx3x regulates the balance of glutamatergic neurons in the developing cortex. CONCLUSIONS: These data shed new light on the developmental mechanisms driving DDX3X syndrome and support construct and face validity of this novel preclinical mouse model.


Asunto(s)
Discapacidad Intelectual , Animales , ARN Helicasas DEAD-box/genética , Modelos Animales de Enfermedad , Femenino , Ratones , Neurogénesis , Fenotipo , Síndrome
6.
Am J Hum Genet ; 107(3): 555-563, 2020 09 03.
Artículo en Inglés | MEDLINE | ID: mdl-32758449

RESUMEN

Helsmoortel-Van der Aa syndrome (HVDAS) is a neurodevelopmental condition associated with intellectual disability/developmental delay, autism spectrum disorder, and multiple medical comorbidities. HVDAS is caused by mutations in activity-dependent neuroprotective protein (ADNP). A recent study identified genome-wide DNA methylation changes in 22 individuals with HVDAS, adding to the group of neurodevelopmental disorders with an epigenetic signature. This methylation signature segregated those with HVDAS into two groups based on the location of the mutations. Here, we conducted an independent study on 24 individuals with HVDAS and replicated the existence of the two mutation-dependent episignatures. To probe whether the two distinct episignatures correlate with clinical outcomes, we used deep behavioral and neurobiological data from two prospective cohorts of individuals with a genetic diagnosis of HVDAS. We found limited phenotypic differences between the two HVDAS-affected groups and no evidence that individuals with more widespread methylation changes are more severely affected. Moreover, in spite of the methylation changes, we observed no profound alterations in the blood transcriptome of individuals with HVDAS. Our data warrant caution in harnessing methylation signatures in HVDAS as a tool for clinical stratification, at least with regard to behavioral phenotypes.


Asunto(s)
Trastorno del Espectro Autista/genética , Proteínas de Homeodominio/genética , Discapacidad Intelectual/genética , Proteínas del Tejido Nervioso/genética , Trastornos del Neurodesarrollo/genética , Trastorno del Espectro Autista/patología , Niño , Metilación de ADN/genética , Discapacidades del Desarrollo/genética , Discapacidades del Desarrollo/patología , Epigénesis Genética/genética , Femenino , Humanos , Discapacidad Intelectual/patología , Masculino , Mutación/genética , Trastornos del Neurodesarrollo/patología , Fenotipo , Transcriptoma/genética
7.
Rev. APS ; 17(3)set. 2014.
Artículo en Portugués | LILACS | ID: lil-737678

RESUMEN

Objetivo ? Analisar e demonstrar o perfil epidemiológico dos pacientes acompanhados pelo Programa Saúde da Família de Vila do Boa, São Sebastião-DF, Brasil, atualmente denominado Estratégia Saúde da Família (ESF). Métodos ? Trata-se de uma pesquisa de perfil de saúde, descritiva e com abordagem quantitativa. A pesquisa foi feita através de questionário, com 12 questões fechadas e por meio dos dados do cadastro Manual de Instalação e Operação ? HIPERDIA Versão 2.70. do ano 2006, anexados aos prontuários dos pacientes, no período de janeiro a dezembro de 2012. Resultados ? Dos 103 pacientes entrevistados, 82,5%, recebem de um a dois salários mínimos, 87,4% reconhecem que a Hipertensão Arterial Sistêmica é uma doença crônica, 99% dos pacientes relataram que, com o acompanhamento da ESF, o atendimento ao hipertenso ficou melhor, 67% é do sexo feminino, 31,06% têm idade entre 51 e 60 anos. Referente à escolaridade, 34,9% disseram ser analfabetos. 83,5% são sedentários. Conclusão ? Observou-se que a maioria dos entrevistados era do sexo feminino, com baixa renda, baixa escolaridade, possuía sobrepeso. Ressalta-se a importância de se traçar o perfil dos pacientes, do uso e preenchimento correto das fichas do HiperDia para subsidiar os dados utilizados na atenção básica. É importante salientar que, nas bases de dados pesquisadas, não foram encontrados artigos referentes ao perfil epidemiológico dos pacientes acompanhados pela ESF no Distrito Federal.


Objective ? To analyze and demonstrate the epidemiological profile of patients monitored by the Family Health Program of Vila do Boa, São Sebastião - DF, Brazil, currently called the Family Health Strategy (FHS). Methods ? This is a health profile survey, descriptive, and using a quantitative approach. The study was conducted through a questionnaire with 12 closed questions and by means of the registry data, Installation and Operation Manual - HIPERDIA Version 2.70. of 2006, attached to the records of the patients during the period from January to December 2012. Results ? Of the 103 patients interviewed, 82.5% receive from 1 to 2 times the minimum wage, 87.4% recognize that hypertension is a chronic disease, 99% of the patients reported that, with the monitoring by the FHS, the attention for hypertension improved, 67% are female, 31.06% are aged between 51 and 60 years. Regarding schooling, 34.9% said they were illiterate. 83.5% are sedentary. Conclusion ? It was observed that the majority of respondents were female, with low income, low education, and overweight. We emphasize the importance of profiling patients, the use and correct completion of HiperDia cards to support the data used in primary care. Notably, in the databases searched, we did not find articles pertaining to the epidemiological profile of patients monitored by the ESF in the Distrito Federal.


Asunto(s)
Perfil de Salud , Hipertensión , Epidemiología , Estrategias de Salud Nacionales , Promoción de la Salud , Hipertensión/prevención & control
8.
Arch Oral Biol ; 54(1): 80-5, 2009 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-18774124

RESUMEN

OBJECTIVE: The aim of the present study was to identify the free amino acid content in whole saliva of children with (CE) and without early childhood caries (CF) (ECC), correlating these findings with caries experience and mutans streptococci (MS) levels in saliva. DESIGN: Seventy-eight healthy children, both genders, 6-71 months age, were selected to participate in the study. Following examination for dmft scores calculation, unstimulated whole saliva was collected from all 78 participants, stored at -80 degrees C, and used for amino acid analysis, on a Biochem 20 plus amino acid analyzer. Stimulated whole saliva was collected from 52 children, transported, diluted and plated on MSB agar medium for detection of MS in cfu/mL. RESULTS: Forty different free amino acids were identified in whole saliva, with great variation in their concentration. A statistically significant relation was found between caries experience and the presence of free proline and glycine. While proline (p=0.0182) was more frequently absent in the CF group, the absence of glycine (p=0.0397) was more often observed in the CE group. In the presence of higher levels of MS, free glycine reduced the risk of experiencing dental caries (p=0.0419). Conversely, the presence of proline was found to increase the risk of experiencing the disease (p=0.0492). CONCLUSIONS: The presence of free proline and absence of free glycine in children with ECC, highly contaminated with MS, increased the chances of experiencing dental caries in the present population. Further studies are needed to better understand this phenomenon.


Asunto(s)
Caries Dental/microbiología , Saliva/química , Saliva/microbiología , Infecciones Estreptocócicas/microbiología , Streptococcus mutans/aislamiento & purificación , Aminoácidos/análisis , Análisis de Varianza , Preescolar , Recuento de Colonia Microbiana , Caries Dental/patología , Femenino , Glicina/análisis , Humanos , Lactante , Masculino , Prolina/análisis , Medición de Riesgo , Infecciones Estreptocócicas/metabolismo , Diente Primario
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