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1.
Brain ; 146(8): 3273-3288, 2023 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-36757831

RESUMO

In the field of rare diseases, progress in molecular diagnostics led to the recognition that variants linked to autosomal-dominant neurodegenerative diseases of later onset can, in the context of biallelic inheritance, cause devastating neurodevelopmental disorders and infantile or childhood-onset neurodegeneration. TOR1A-associated arthrogryposis multiplex congenita 5 (AMC5) is a rare neurodevelopmental disorder arising from biallelic variants in TOR1A, a gene that in the heterozygous state is associated with torsion dystonia-1 (DYT1 or DYT-TOR1A), an early-onset dystonia with reduced penetrance. While 15 individuals with AMC5-TOR1A have been reported (less than 10 in detail), a systematic investigation of the full disease-associated spectrum has not been conducted. Here, we assess the clinical, radiological and molecular characteristics of 57 individuals from 40 families with biallelic variants in TOR1A. Median age at last follow-up was 3 years (0-24 years). Most individuals presented with severe congenital flexion contractures (95%) and variable developmental delay (79%). Motor symptoms were reported in 79% and included lower limb spasticity and pyramidal signs, as well as gait disturbances. Facial dysmorphism was an integral part of the phenotype, with key features being a broad/full nasal tip, narrowing of the forehead and full cheeks. Analysis of disease-associated manifestations delineated a phenotypic spectrum ranging from normal cognition and mild gait disturbance to congenital arthrogryposis, global developmental delay, intellectual disability, absent speech and inability to walk. In a subset, the presentation was consistent with foetal akinesia deformation sequence with severe intrauterine abnormalities. Survival was 71%, with higher mortality in males. Death occurred at a median age of 1.2 months (1 week-9 years), due to respiratory failure, cardiac arrest or sepsis. Analysis of brain MRI studies identified non-specific neuroimaging features, including a hypoplastic corpus callosum (72%), foci of signal abnormality in the subcortical and periventricular white matter (55%), diffuse white matter volume loss (45%), mega cisterna magna (36%) and arachnoid cysts (27%). The molecular spectrum included 22 distinct variants, defining a mutational hotspot in the C-terminal domain of the Torsin-1A protein. Genotype-phenotype analysis revealed an association of missense variants in the 3-helix bundle domain to an attenuated phenotype, while missense variants near the Walker A/B motif as well as biallelic truncating variants were linked to early death. In summary, this systematic cross-sectional analysis of a large cohort of individuals with biallelic TOR1A variants across a wide age-range delineates the clinical and genetic spectrum of TOR1A-related autosomal-recessive disease and highlights potential predictors for disease severity and survival.


Assuntos
Distonia , Distúrbios Distônicos , Malformações do Sistema Nervoso , Masculino , Humanos , Estudos Transversais , Mutação/genética , Fenótipo , Distonia/genética , Distúrbios Distônicos/genética , Chaperonas Moleculares/genética
2.
Genet Med ; 25(1): 90-102, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36318270

RESUMO

PURPOSE: Brain monoamine vesicular transport disease is an infantile-onset movement disorder that mimics cerebral palsy. In 2013, the homozygous SLC18A2 variant, p.Pro387Leu, was first reported as a cause of this rare disorder, and dopamine agonists were efficient for treating affected individuals from a single large family. To date, only 6 variants have been reported. In this study, we evaluated genotype-phenotype correlations in individuals with biallelic SLC18A2 variants. METHODS: A total of 42 affected individuals with homozygous SLC18A2 variant alleles were identified. We evaluated genotype-phenotype correlations and the missense variants in the affected individuals based on the structural modeling of rat VMAT2 encoded by Slc18a2, with cytoplasm- and lumen-facing conformations. A Caenorhabditis elegans model was created for functional studies. RESULTS: A total of 19 homozygous SLC18A2 variants, including 3 recurrent variants, were identified using exome sequencing. The affected individuals typically showed global developmental delay, hypotonia, dystonia, oculogyric crisis, and autonomic nervous system involvement (temperature dysregulation/sweating, hypersalivation, and gastrointestinal dysmotility). Among the 58 affected individuals described to date, 16 (28%) died before the age of 13 years. Of the 17 patients with p.Pro237His, 9 died, whereas all 14 patients with p.Pro387Leu survived. Although a dopamine agonist mildly improved the disease symptoms in 18 of 21 patients (86%), some affected individuals with p.Ile43Phe and p.Pro387Leu showed milder phenotypes and presented prolonged survival even without treatment. The C. elegans model showed behavioral abnormalities. CONCLUSION: These data expand the phenotypic and genotypic spectra of SLC18A2-related disorders.


Assuntos
Encefalopatias , Distonia , Transtornos dos Movimentos , Humanos , Animais , Ratos , Caenorhabditis elegans/genética , Caenorhabditis elegans/metabolismo , Proteínas Vesiculares de Transporte de Monoamina/genética , Proteínas Vesiculares de Transporte de Monoamina/metabolismo , Transtornos dos Movimentos/genética , Aminas , Encéfalo/metabolismo
3.
Hum Mutat ; 43(3): 403-419, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34989426

RESUMO

Developmental and epileptic encephalopathy 35 (DEE 35) is a severe neurological condition caused by biallelic variants in ITPA, encoding inosine triphosphate pyrophosphatase, an essential enzyme in purine metabolism. We delineate the genotypic and phenotypic spectrum of DEE 35, analyzing possible predictors for adverse clinical outcomes. We investigated a cohort of 28 new patients and reviewed previously described cases, providing a comprehensive characterization of 40 subjects. Exome sequencing was performed to identify underlying ITPA pathogenic variants. Brain MRI (magnetic resonance imaging) scans were systematically analyzed to delineate the neuroradiological spectrum. Survival curves according to the Kaplan-Meier method and log-rank test were used to investigate outcome predictors in different subgroups of patients. We identified 18 distinct ITPA pathogenic variants, including 14 novel variants, and two deletions. All subjects showed profound developmental delay, microcephaly, and refractory epilepsy followed by neurodevelopmental regression. Brain MRI revision revealed a recurrent pattern of delayed myelination and restricted diffusion of early myelinating structures. Congenital microcephaly and cardiac involvement were statistically significant novel clinical predictors of adverse outcomes. We refined the molecular, clinical, and neuroradiological characterization of ITPase deficiency, and identified new clinical predictors which may have a potentially important impact on diagnosis, counseling, and follow-up of affected individuals.


Assuntos
Epilepsia Generalizada , Microcefalia , Pirofosfatases , Humanos , Inosina , Inosina Trifosfato , Microcefalia/patologia , Mutação , Prognóstico , Pirofosfatases/genética , Inosina Trifosfatase
4.
Genet Med ; 23(3): 524-533, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33188300

RESUMO

PURPOSE: Dioxygenases are oxidoreductase enzymes with roles in metabolic pathways necessary for aerobic life. 4-hydroxyphenylpyruvate dioxygenase-like protein (HPDL), encoded by HPDL, is an orphan paralogue of 4-hydroxyphenylpyruvate dioxygenase (HPD), an iron-dependent dioxygenase involved in tyrosine catabolism. The function and association of HPDL with human diseases remain unknown. METHODS: We applied exome sequencing in a cohort of over 10,000 individuals with neurodevelopmental diseases. Effects of HPDL loss were investigated in vitro and in vivo, and through mass spectrometry analysis. Evolutionary analysis was performed to investigate the potential functional separation of HPDL from HPD. RESULTS: We identified biallelic variants in HPDL in eight families displaying recessive inheritance. Knockout mice closely phenocopied humans and showed evidence of apoptosis in multiple cellular lineages within the cerebral cortex. HPDL is a single-exonic gene that likely arose from a retrotransposition event at the base of the tetrapod lineage, and unlike HPD, HPDL is mitochondria-localized. Metabolic profiling of HPDL mutant cells and mice showed no evidence of altered tyrosine metabolites, but rather notable accumulations in other metabolic pathways. CONCLUSION: The mitochondrial localization, along with its disrupted metabolic profile, suggests HPDL loss in humans links to a unique neurometabolic mitochondrial infantile neurodegenerative condition.


Assuntos
4-Hidroxifenilpiruvato Dioxigenase , Dioxigenases , 4-Hidroxifenilpiruvato Dioxigenase/genética , Animais , Éxons , Humanos , Camundongos , Camundongos Knockout , Fenótipo
5.
Genet Med ; 23(11): 2138-2149, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34244665

RESUMO

PURPOSE: We aimed to define a novel autosomal recessive neurodevelopmental disorder, characterize its clinical features, and identify the underlying genetic cause for this condition. METHODS: We performed a detailed clinical characterization of 19 individuals from nine unrelated, consanguineous families with a neurodevelopmental disorder. We used genome/exome sequencing approaches, linkage and cosegregation analyses to identify disease-causing variants, and we performed three-dimensional molecular in silico analysis to predict causality of variants where applicable. RESULTS: In all affected individuals who presented with a neurodevelopmental syndrome with progressive microcephaly, seizures, and intellectual disability we identified biallelic disease-causing variants in Protocadherin-gamma-C4 (PCDHGC4). Five variants were predicted to induce premature protein truncation leading to a loss of PCDHGC4 function. The three detected missense variants were located in extracellular cadherin (EC) domains EC5 and EC6 of PCDHGC4, and in silico analysis of the affected residues showed that two of these substitutions were predicted to influence the Ca2+-binding affinity, which is essential for multimerization of the protein, whereas the third missense variant directly influenced the cis-dimerization interface of PCDHGC4. CONCLUSION: We show that biallelic variants in PCDHGC4 are causing a novel autosomal recessive neurodevelopmental disorder and link PCDHGC4 as a member of the clustered PCDH family to a Mendelian disorder in humans.


Assuntos
Deficiência Intelectual , Microcefalia , Transtornos do Neurodesenvolvimento , Proteínas Relacionadas a Caderinas , Caderinas/genética , Humanos , Deficiência Intelectual/genética , Microcefalia/genética , Transtornos do Neurodesenvolvimento/genética , Linhagem , Fenótipo , Convulsões/genética
7.
Ann Med Surg (Lond) ; 86(3): 1352-1358, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38463116

RESUMO

Background: The role of metacognition as a common concept in education is undeniable. One of the challenges in the field of metacognition is to measure the impact of metacognition in teaching with practical tools. Therefore, this study aimed to investigate the psychometric characteristics of the metacognition questionnaire in teaching. Methods: In this cross-sectional study, the statistical population of the study included all teachers in 2020 which was selected by an available sampling method of 137 people. The data were collected using a teacher's metacognition questionnaire (TMI). A Confirmatory, Pearson correlation coefficient was used to analyze the data. For this purpose, the use of SPSS-25 and LISREL software has been used. Results: of exploratory and confirmatory factor analysis indicate that. The validity and retest of the total score were calculated to be 0.93 and 0.86, respectively. The credibility of its subscales was also acceptable. Conclusion: As a result, it can be stated that the questionnaire has the proper psychometric properties for use in Iranian society and can be used as a valid tool for identifying teachers with teaching problems and teaching methods.

8.
Asian J Psychiatr ; 101: 104220, 2024 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-39241655

RESUMO

Mental health is a vital part of the bigger well-being picture in the Middle East, which faces specific challenges. In history, mental health has had a bad reputation and low access to services but this is changing as stakeholders are now promoting mental wellbeing. This literature review examines new ways to advance mental health in the Middle East. It explores cultural context, educates on mental health issues, integrates primary care and mental health services, uses technology for communication purposes, builds community support, and advocates for policy reform towards improved mental healthcare outcomes. A comprehensive review across all academic databases was published between 2018 and 2023 using search terms "mental health" and "Middle East". The study highlights the importance of understanding cultural and social factors that contribute to people's comprehension of their minds. Additionally, it suggests methods of raising awareness against stigma like digital platforms and community-based education among others. It also points out two measures: first, it indicates that integrating MHI into Primary Health Care (PHC) Systems increases accessibility; secondly, it proposes that a technology-supported personalized approach can be used to support individuals when needed. On this note, the paper underscores the necessity of utilizing local players within communities at large. The review puts a lot of stress on the significance of approaches that are community-based and involve all people living within an area. This review is very timely and comprehensive in its framework meant to improve mental health in the Middle East. The results could be useful in providing insights for devising appropriate culturally sensitive interventions aimed at promoting mental health in this region. In highlighting particular difficulties as well as possibilities, however, the review guides policy makers, healthcare practitioners, and societies aiming to improve their collective response to mental health problems.

9.
Ann Med Surg (Lond) ; 86(6): 3508-3513, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38846870

RESUMO

This study aimed to explore the neuro-cognitive paradigm in anxiety diseases by integrating neurobiological and cognitive perspectives. The ideal was to enhance our understanding of the complex interplay between neural and cognitive processes in anxiety and its counteraccusations for treatment. A comprehensive review of the literature was conducted, examining studies that delved into the neurobiological supplements and cognitive impulses in anxiety. The findings revealed the involvement of brain regions similar to the amygdala, prefrontal cortex, and hippocampus in anxiety diseases, along with dysregulation in neurotransmitter systems. Cognitive impulses, including attentional bias towards trouble, interpretation bias, and memory impulses, were constantly observed in individuals with anxiety. The results stressed the bidirectional relationship between neurobiology and cognition, demonstrating that neurobiological factors impact cognitive processes, and cognitive factors modulate neural exertion. Integrated interventions targeting both neurobiological and cognitive factors showed a pledge in treating anxiety diseases. The study linked gaps in the literature and emphasized the significance of considering artistic factors and developing individualized treatment approaches. Overall, this study contributes to a comprehensive understanding of anxiety diseases and informs unborn exploration and clinical practice.

10.
Ann Med Surg (Lond) ; 86(8): 4657-4663, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39118764

RESUMO

This study aims to dissect the current state of emotion recognition and response mechanisms in artificial intelligence (AI) systems, exploring the progress made, challenges faced, and implicit operations of integrating emotional intelligence into AI. This study utilized a comprehensive review approach to investigate the integration of emotional intelligence (EI) into artificial intelligence (AI) systems, concentrating on emotion recognition and response mechanisms. The review process entailed formulating research questions, systematically searching academic databases such as PubMed, Scopus, and Web of Science, critically evaluating relevant literature, synthesizing the data, and presenting the findings in a comprehensive format. The study highlights the advancements in emotion recognition models, including the use of deep literacy ways and multimodal data emulsion. It discusses the challenges in emotion recognition, similar to variability in mortal expressions and the need for real-time processing. The integration of contextual information and individual traits is emphasized as enhancing the understanding of mortal feelings. The study also addresses ethical enterprises, similar as sequestration and impulses in training data. The integration of emotional intelligence into AI systems presents openings to revise mortal-computer relations. Emotion recognition and response mechanisms have made significant progress, but challenges remain. Unborn exploration directions include enhancing the robustness and interpretability of emotion recognition models, exploring cross-cultural and environment-apprehensive emotion understanding, and addressing long-term emotion shadowing and adaption. By further exploring emotional intelligence in AI systems, further compassionate and responsive machines can be developed, enabling deeper emotional connections with humans.

11.
Ann Med Surg (Lond) ; 86(8): 4521-4526, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39118768

RESUMO

Background: Group cognitive-behavioral therapy has demonstrated its effectiveness in treating various psychological disorders. Nevertheless, there is insufficient evidence supporting its application in enhancing both the quality of life and depression among Parkinson's patients. Consequently, this study was undertaken to examine the efficacy of group cognitive-behavioral therapy in ameliorating depression symptoms and enhancing the quality of life in individuals afflicted with Parkinson's disease. Materials and methods: A randomized clinical trial with pre-test and post-test measurements, including a control group, was conducted. The sample consisted of individuals referred to Roozbeh Hospital in Tehran with Parkinson's disease in 2023. Ninety participants were selected using convenience sampling and randomly assigned to either an experimental or a control group, with 45 participants in each. The experimental group received a three-month cognitive-behavioral therapy intervention consisting of 12 sessions of 90 min. Pre-test and post-test measures included the Beck Depression Questionnaire and the World Health Organization Quality of Life Questionnaire. Data analysis was performed using multivariate analysis of covariance (MANCOVA) in SPSS-25. Results: The results revealed a significant difference between the experimental and control groups in terms of depression and quality of life. The cognitive-behavioral therapy intervention significantly reduced depression and significantly improved the quality of life in individuals with Parkinson's disease (P≤0.01). Conclusion: Group cognitive-behavioral therapy can be an effective approach for reducing depression and improving the quality of life in individuals with Parkinson's disease. Therefore, therapists and healthcare providers can utilize cognitive-behavioral therapy to enhance the well-being of individuals with Parkinson's disease.

12.
Ann Med Surg (Lond) ; 86(5): 2651-2656, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38694339

RESUMO

Introduction and importance: This research was conducted to investigate the effectiveness of neurofeedback on the symptoms of hyperactivity and attention deficit in primary school students with attention deficit/hyperactivity disorder (ADHD) disorder. Case presentation: The present study utilized a randomized clinical trial with pre-test and post-test measurements and included a control group. The research population included all primary school students with ADHD in 2023; 50 of these children were selected as the experimental group based on the accessible sampling method, and 50 were also included in the control group. Neurofeedback treatment sessions for the experimental group were 30 sessions. Research data were collected in three stages: pre-test and post-test, using a questionnaire based on the Conners rating scale from parents. SPSS-25 analyzed the data. Clinical discussion: The results showed that neurofeedback is associated with significant effectiveness in the symptoms of attention deficit disorder and hyperactivity of students (P<0.05). Conclusion: Based on the findings of this research, it can be said that neurofeedback treatment is effective in reducing attention deficit and hyperactivity symptoms of students with ADHD disorder. It is suggested to widely use neurofeedback to reduce the symptoms of attention deficit and hyperactivity disorder.

13.
Iran J Child Neurol ; 18(2): 141-146, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38617395

RESUMO

Brown-Vialetto-Van Laere syndrome (BVVLS) is a rare neurodegenerative disorder of childhood. According to the previous reports, it has various primary signs and symptoms. Because of the simple treatment with riboflavin supplementation, it is important to have suspicious to this disease and begin treatment even before genetic test confirm. We report a five-year-old girl with BVVLS that manifest with hearing problems, first. There was obvious improvement in her disease clinical signs with riboflavin supplementation treatment.

14.
Med Eng Phys ; 129: 104179, 2024 07.
Artigo em Inglês | MEDLINE | ID: mdl-38906566

RESUMO

Cardiopulmonary resuscitation (CPR) is a crucial life-saving technique commonly administered to individuals experiencing cardiac arrest. Among the important aspects of CPR is ensuring the correct airway position of the patient, which is typically monitored by human tutors or supervisors. This study aims to utilize deep transfer learning for the detection of the patient's correct and incorrect airway position during cardiopulmonary resuscitation. To address the challenge of identifying the airway position, we curated a dataset consisting of 198 recorded video sequences, each lasting 6-8 s, showcasing both correct and incorrect airway positions during mouth-to-mouth breathing and breathing with an Ambu Bag. We employed six cutting-edge deep networks, namely DarkNet19, EfficientNetB0, GoogleNet, MobileNet-v2, ResNet50, and NasnetMobile. These networks were initially pre-trained on computer vision data and subsequently fine-tuned using the CPR dataset. The validation of the fine-tuned networks in detecting the patient's correct airway position during mouth-to-mouth breathing achieved impressive results, with the best sensitivity (98.8 %), specificity (100 %), and F-measure (97.2 %). Similarly, the detection of the patient's correct airway position during breathing with an Ambu Bag exhibited excellent performance, with the best sensitivity (100 %), specificity (99.8 %), and F-measure (99.7 %).


Assuntos
Reanimação Cardiopulmonar , Aprendizado Profundo , Humanos , Monitorização Fisiológica/instrumentação , Monitorização Fisiológica/métodos , Respiração
15.
Asian J Psychiatr ; 93: 103908, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38237532

RESUMO

This study explores the difficulties and possible remedies, for enhancing health services and decreasing stigma in the Middle East. The paper underscores the significance of education integrating Western methods, involving leaders educating young people and utilizing social media. It also draws attention to social challenges in the region while offering strategies to train health professionals to be culturally sensitive. The goal is to improve healthcare standards, in the Middle East by tackling barriers and fostering empathy and respect.


Assuntos
Saúde Mental , Infraestrutura de Saúde Pública , Humanos , Adolescente , Estigma Social , Pessoal de Saúde , Oriente Médio
16.
Clin Case Rep ; 12(2): e8493, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38380378

RESUMO

Mild encephalopathy with a reversible splenial lesion (MERS) is a rare phenomenon, which shows transient lesion in corpus callosum and causes temporary encephalopathy features. A disturbance of consciousness and abnormal and delirious behavior are the most significant neurological symptoms. A seven-year-old child with a history of fever and cough was admitted to our hospital due to sudden bilateral blindness. His physical examination showed confusion, fever, and delirious behavior. No sign of meningeal irritation or focal neurological deficit was observed. The electroencephalogram showed diffuse slow waves representing mild encephalopathy. Brain MRI showed a signal alteration in the splenium of the corpus callosum, and magnetic resonance angiography (MRA) was normal. This finding was suggestive of a reversible cytotoxic lesion. Treatment with empiric antivirals was initiated, and the symptoms were completely resolved. In a few children, sudden blindness has been reported to be an initial symptom of MERS. There is currently no evidence of efficient treatment methods. However, to convince patients and their families about the good outcome of the disease, the diagnosis of MERS provides pediatricians with useful prognostic information.

17.
Ann Med Surg (Lond) ; 86(1): 207-211, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38222757

RESUMO

Introduction and importance: Autism spectrum disorder significantly impacts the life and psychosocial health of the family, resulting in high levels of anxiety, stress, isolation, and indecisiveness among parents. This study aimed to determine the effectiveness of cognitive therapy based on mindfulness in increasing the tolerance of mothers of children with autism. Case presentation: The study used a semi-experimental pre-test-post-test design with a control group. The study population comprised mothers referred to autism centers in Tehran. Eighty mothers were randomly divided into two groups, with 40 in each group. The Connor and Davidson Resilience Scale was used to measure the level of tolerance in both groups in the pre-test and post-test stages. The experimental group underwent cognitive therapy group therapy based on mindfulness, comprising eight sessions of 120 min. On the other hand, the control group did not receive any intervention. Clinical discussion: The results of the study showed that the tolerance scores of the experimental group significantly increased after the intervention, in both the post-test and follow-up stages. Conclusion: Therefore, the results of this research emphasize the importance of using this intervention in increasing the tolerance of mothers of children with autism spectrum disorder and creating new horizons in the clinical interventions of these people.

18.
Cell Cycle ; 23(4): 405-434, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38640424

RESUMO

Angiotensin-converting enzyme 2 (ACE2) is identified as the functional receptor for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of the ongoing global coronavirus disease-2019 (COVID-19) pandemic. This study aimed to elucidate potential therapeutic avenues by scrutinizing approved drugs through the identification of the genetic signature associated with SARS-CoV-2 infection in individuals with asthma. This exploration was conducted through an integrated analysis, encompassing interaction networks between the ACE2 receptor and common host (co-host) factors implicated in COVID-19/asthma comorbidity. The comprehensive analysis involved the identification of common differentially expressed genes (cDEGs) and hub-cDEGs, functional annotations, interaction networks, gene set variation analysis (GSVA), gene set enrichment analysis (GSEA), and module construction. Interaction networks were used to identify overlapping disease modules and potential drug targets. Computational biology and molecular docking analyzes were utilized to discern functional drug modules. Subsequently, the impact of the identified drugs on the expression of hub-cDEGs was experimentally validated using a mouse model. A total of 153 cDEGs or co-host factors associated with ACE2 were identified in the COVID-19 and asthma comorbidity. Among these, seven significant cDEGs and proteins - namely, HRAS, IFNG, JUN, CDH1, TLR4, ICAM1, and SCD-were recognized as pivotal host factors linked to ACE2. Regulatory network analysis of hub-cDEGs revealed eight top-ranked transcription factors (TFs) proteins and nine microRNAs as key regulatory factors operating at the transcriptional and post-transcriptional levels, respectively. Molecular docking simulations led to the proposal of 10 top-ranked repurposable drug molecules (Rapamycin, Ivermectin, Everolimus, Quercetin, Estradiol, Entrectinib, Nilotinib, Conivaptan, Radotinib, and Venetoclax) as potential treatment options for COVID-19 in individuals with comorbid asthma. Validation analysis demonstrated that Rapamycin effectively inhibited ICAM1 expression in the HDM-stimulated mice group (p < 0.01). This study unveils the common pathogenesis and genetic signature underlying asthma and SARS-CoV-2 infection, delineated by the interaction networks of ACE2-related host factors. These findings provide valuable insights for the design and discovery of drugs aimed at more effective therapeutics within the context of lung disease comorbidities.


Assuntos
Enzima de Conversão de Angiotensina 2 , Asma , Tratamento Farmacológico da COVID-19 , COVID-19 , Reposicionamento de Medicamentos , Animais , Humanos , Camundongos , Enzima de Conversão de Angiotensina 2/genética , Enzima de Conversão de Angiotensina 2/metabolismo , Asma/tratamento farmacológico , Asma/genética , Comorbidade , Biologia Computacional/métodos , COVID-19/genética , COVID-19/virologia , Redes Reguladoras de Genes/efeitos dos fármacos , MicroRNAs/genética , MicroRNAs/metabolismo , Simulação de Acoplamento Molecular , SARS-CoV-2/efeitos dos fármacos , SARS-CoV-2/genética , SARS-CoV-2/metabolismo
19.
bioRxiv ; 2024 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-38260472

RESUMO

Many neurodevelopmental defects are linked to perturbations in genes involved in housekeeping functions, such as those encoding ribosome biogenesis factors. However, how reductions in ribosome biogenesis can result in tissue and developmental specific defects remains a mystery. Here we describe new allelic variants in the ribosome biogenesis factor AIRIM primarily associated with neurodevelopmental disorders. Using human cerebral organoids in combination with proteomic analysis, single-cell transcriptome analysis across multiple developmental stages, and single organoid translatome analysis, we identify a previously unappreciated mechanism linking changes in ribosome levels and the timing of cell fate specification during early brain development. We find ribosome levels decrease during neuroepithelial differentiation, making differentiating cells particularly vulnerable to perturbations in ribosome biogenesis during this time. Reduced ribosome availability more profoundly impacts the translation of specific transcripts, disrupting both survival and cell fate commitment of transitioning neuroepithelia. Enhancing mTOR activity by both genetic and pharmacologic approaches ameliorates the growth and developmental defects associated with intellectual disability linked variants, identifying potential treatment options for specific brain ribosomopathies. This work reveals the cellular and molecular origins of protein synthesis defect-related disorders of human brain development. Highlights: AIRIM variants reduce ribosome levels specifically in neural progenitor cells. Inappropriately low ribosome levels cause a transient delay in radial glia fate commitment.Reduced ribosome levels impair translation of a selected subset of mRNAs.Genetic and pharmacologic activation of mTORC1 suppresses AIRIM-linked phenotypes.

20.
Clin Exp Dent Res ; 9(5): 922-934, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37602892

RESUMO

OBJECTIVES: The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus causes coronavirus disease 2019 (COVID-19), a respiratory infection that has spread worldwide and is responsible for a high death toll. Although respiratory symptoms are the most common, there is growing evidence that oral signs of COVID-19 can also be seen in children. The purpose of this systematic review is to provide a comprehensive analysis of the available data on the oral manifestations of COVID-19 in children and to recommend appropriate methods of diagnosis and treatment. METHODS: A systematic search of the MEDLINE, EMBASE, Scopus, and Web of Science databases was done to discover relevant papers published between their establishment and January 2023. Articles detailing oral symptoms in pediatric patients with confirmed COVID-19 infection were included, and data on clinical characteristics, diagnosis, treatment, and outcomes were extracted and evaluated. RESULTS: A total of 24 studies involving 2112 pediatric patients with COVID-19 were included in the review. The most common presentations are oral lesions, taste and smell disorders, oral candidiasis, hemorrhagic crust, tongue discoloration, lip and tongue fissuring, gingivitis, and salivary gland inflammation. These manifestations were sometimes associated with multi-system inflammatory syndrome in children (MIS-C) or Kawasaki disease (KD). Management strategies varied depending on the severity of the oral manifestation and ranged from symptomatic relief with topical analgesics to systemic medications. CONCLUSION: Oral symptoms of COVID-19 are relatively prevalent in juvenile patients and can be accompanied by severe systemic diseases, such as MIS-C or Kawasaki illness. Early detection and adequate care of these oral symptoms are critical for the best patient results. Understanding the underlying pathophysiology and developing targeted treatments requires more investigation.


Assuntos
COVID-19 , Criança , Humanos , COVID-19/complicações , COVID-19/diagnóstico , COVID-19/terapia , Bases de Dados Factuais , SARS-CoV-2 , Guias de Prática Clínica como Assunto
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