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1.
Pediatr Neurol ; 161: 139-143, 2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39383587

RESUMO

BACKGROUND: In the realm of pediatric cerebral palsy (CP), visual motor challenges often overshadow a child's developmental journey. This study delves into the responsiveness and crucial benchmarks, specifically the minimal clinically important difference (MCID), of the Beery-Buktenica Developmental Test of Visual-Motor Integration (Beery VMI) among children with varying motor severities. METHOD: Eighty-eight children with CP (50 males, 38 females; aged three to 12 years) with Gross Motor Function Classification System (GMFCS) levels I to III were recruited from the rehabilitation department of Chang Gung Memorial Hospital in Taiwan. Each participant received the Beery VMI tests at baseline and at one-year follow-up. The standardized response mean (SRM) was calculated to determine the responsiveness of Beery VMI, and a distribution-based approach was used to estimate MCID. RESULTS: The Beery VMI exhibited remarkable responsiveness across GMFCS levels I to III (SRM = 0.98-2.36). MCIDs for Beery VMI varied across severities, with ranges of 2.93 to 4.41 (0.2 S.D.), 7.31 to 11.49 (0.5 S.D.), and 11.70 to 18.38 (0.8 S.D.). Notably, in the visual perception subset, MCIDs were 3.93 to 4.03 (0.2 S.D.), 9.83 to 10.07 (0.5 S.D.), and 15.73 to 16.11 (0.8 S.D.). In the supplemental motor coordination subtest, MCIDs spanned 1.67 to 4.87 (0.2 S.D.), 4.18 to 12.17 (0.5 S.D.), and 6.68 to 19.47 (0.8 S.D.). CONCLUSIONS: Beery VMI demonstrates robust responsiveness in children with CP. Motor-severity-tailored MCIDs offer a guide for clinicians and researchers, hinting at treatment efficacy. Particularly, lower change scores in VMI and motor coordination subtests may signal effective interventions for moderate motor disability over mild cases.

2.
J Atten Disord ; 28(14): 1760-1782, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-39291373

RESUMO

OBJECTIVE: To investigate the neural mechanisms underlying working memory (WM) deficits in children with ADHD. METHOD: WM was compared between thirty-four children with ADHD and thirty-four matched controls using neuropsychological tests, spatial and verbal versions of modified delayed matching-to-sample (DMTS) tasks, and the event-related potential technique. RESULTS: Children with ADHD demonstrated poor behavioral performance, delayed P3 latencies in high-load spatial modified DMTS tasks during encoding, and delayed P2 and N2 latencies during retrieval in spatial modified DMTS tasks. In high-load verbal modified DMTS tasks during encoding, they showed a smaller P3 amplitude. DISCUSSION: Pronounced deficits in the central executive system in children with ADHD were exhibited by neuropsychological tests and the modified DMTS task. Children with ADHD exhibited a slowing of processing speed during encoding. Under high-load conditions, they showed a reduced P3 amplitude during retrieval, suggesting reduced neural resource allocation was available when the central executive of the working memory was heavily loaded.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Potenciais Evocados , Transtornos da Memória , Memória de Curto Prazo , Testes Neuropsicológicos , Humanos , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Memória de Curto Prazo/fisiologia , Criança , Masculino , Feminino , Potenciais Evocados/fisiologia , Transtornos da Memória/fisiopatologia , Eletroencefalografia , Tempo de Reação/fisiologia , Função Executiva/fisiologia
3.
Nucleic Acids Res ; 52(16): 9551-9573, 2024 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-39021337

RESUMO

Trichoderma reesei is an economically important enzyme producer with several unique meiotic features. spo11, the initiator of meiotic double-strand breaks (DSBs) in most sexual eukaryotes, is dispensable for T. reesei meiosis. T. reesei lacks the meiosis-specific recombinase Dmc1. Rad51 and Sae2, the activator of the Mre11 endonuclease complex, promote DSB repair and chromosome synapsis in wild-type and spo11Δ meiosis. DNA methyltransferases (DNMTs) perform multiple tasks in meiosis. Three DNMT genes (rid1, dim2 and dimX) differentially regulate genome-wide cytosine methylation and C:G-to-T:A hypermutations in different chromosomal regions. We have identified two types of DSBs: type I DSBs require spo11 or rid1 for initiation, whereas type II DSBs do not rely on spo11 and rid1 for initiation. rid1 (but not dim2) is essential for Rad51-mediated DSB repair and normal meiosis. rid1 and rad51 exhibit a locus heterogeneity (LH) relationship, in which LH-associated proteins often regulate interconnectivity in protein interaction networks. This LH relationship can be suppressed by deleting dim2 in a haploid rid1Δ (but not rad51Δ) parental strain, indicating that dim2 and rid1 share a redundant function that acts earlier than rad51 during early meiosis. In conclusion, our studies provide the first evidence of the involvement of DNMTs during meiotic initiation and recombination.


Assuntos
Quebras de DNA de Cadeia Dupla , Hypocreales , Meiose , Meiose/genética , Hypocreales/genética , Metilação de DNA , DNA (Citosina-5-)-Metiltransferases/metabolismo , DNA (Citosina-5-)-Metiltransferases/genética , Proteínas Fúngicas/genética , Proteínas Fúngicas/metabolismo , Genoma Fúngico , Recombinação Homóloga , Endodesoxirribonucleases/metabolismo , Endodesoxirribonucleases/genética
4.
Front Immunol ; 15: 1405210, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38947315

RESUMO

In bone marrow transplantation (BMT), hematopoiesis-reconstituting cells are introduced following myeloablative treatment, which eradicates existing hematopoietic cells and disrupts stroma within the hematopoietic tissue. Both hematopoietic cells and stroma then undergo regeneration. Our study compares the outcomes of a second BMT administered to mice shortly after myeloablative treatment and the first BMT, with those of a second BMT administered to mice experiencing robust hematopoietic regeneration after the initial transplant. We evaluated the efficacy of the second BMT in terms of engraftment efficiency, types of generated blood cells, and longevity of function. Our findings show that regenerating hematopoiesis readily accommodates newly transplanted stem cells, including those endowed with a robust capacity for generating B and T cells. Importantly, our investigation uncovered a window for preferential engraftment of transplanted stem cells coinciding with the resumption of blood cell production. Repeated BMT could intensify hematopoiesis reconstitution and enable therapeutic administration of genetically modified autologous stem cells.


Assuntos
Transplante de Medula Óssea , Hematopoese , Animais , Transplante de Medula Óssea/métodos , Camundongos , Células-Tronco Hematopoéticas/imunologia , Camundongos Endogâmicos C57BL , Reconstituição Imune , Regeneração
5.
Life Sci ; 351: 122817, 2024 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-38871113

RESUMO

Lung cancer is the leading cause of cancer deaths, where the metastasis often causes chemodrug resistance and leads to recurrence after treatment. Desmethylclomipramine (DCMI), a bioactive metabolite of clomipramine, shows the therapeutic efficacy with antidepressive agency as well as potential cytostatic effects on lung cancer cells. Here, we demonstrated that DCMI effectively caused transforming growth factor (TGF)-ß1-mediated mesenchymal type of A549 cells to undergo mitochondrial death via myeloid cell leukemia-1 (Mcl-1) suppression and activation of truncated Bid (tBid). TGF-ß1 induced epithelial mesenchymal transition in A549 cells with the increase of fibronectin and decrease of E-cadherin, the activation of Akt/glycogen synthase kinase-3ß (GSK-ß)/Mcl-1 axis, and the hypo-responsiveness to cisplatin. DCMI initiated a dose-dependent cytotoxicity on TGF-ß1-mediated mesenchymal type of A549 cells through inactivating Akt/GSK-ß/Mcl-1 axis, in which mitochondria instability and caspase-9/3 activation also occurred concurrently. Pharmacological inhibition of caspase-8 and cathepsin B partly reversed tBid expression and mitochondrial damage to further attenuate DCMI-mediated cytotoxicity. Additionally, DCMI presented partial therapeutic effects in treating mesenchymal type of A549 tumor bearing nude mice through an acceleration of cancer cell death. Taken together, DCMI exerts antitumor effects via initiating the mechanisms of Akt/GSK-ß/Mcl-1 inactivation and cathepsin B/caspase-8-regulated mitochondrial death, which suggests its potential role in mesenchymal type of cancer cell therapy.


Assuntos
Transição Epitelial-Mesenquimal , Neoplasias Pulmonares , Mitocôndrias , Animais , Humanos , Camundongos , Células A549 , Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Morte Celular/efeitos dos fármacos , Transição Epitelial-Mesenquimal/efeitos dos fármacos , Glicogênio Sintase Quinase 3 beta/metabolismo , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/metabolismo , Camundongos Endogâmicos BALB C , Camundongos Nus , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/metabolismo , Proteína de Sequência 1 de Leucemia de Células Mieloides/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Transdução de Sinais/efeitos dos fármacos , Fator de Crescimento Transformador beta/metabolismo , Fator de Crescimento Transformador beta1/metabolismo , Ensaios Antitumorais Modelo de Xenoenxerto
6.
Front Neurol ; 15: 1352365, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38846043

RESUMO

Background: Stroke is a leading cause of long-term disability among stroke survivors. Despite the availability of numerous stroke rehabilitative therapies, such as mirror therapy, bilateral arm training, and robot-assisted therapy, the recovery of motor function after stroke remains incomplete. Bilateral arm function is a key component in stroke patients to perform activities of daily living and to reflect their functional autonomy. Objective: This clinimetric study investigated and compared the construct validity and responsiveness of 2 bimanual activity outcome measures, the Chedoke Arm and Hand Activity Inventory (CAHAI) and the ABILHAND Questionnaire, in individuals receiving stroke rehabilitation. Methods: The present study is a secondary analysis following the framework of the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN). Individuals with chronic stroke (N = 113) were recruited from outpatient rehabilitation settings. Participants received 18 to 20 sessions of robot-assisted therapy, mirror therapy, combined therapy, or conventional rehabilitation for 4 to 6 weeks. The CAHAI, ABILHAND Questionnaire, and a comparison instrument, the Motor Activity Log (MAL), were administered twice at a 4- to 6-week interval to all participants. ABILHAND scores, in logits, were converted from raw ordinal scores into a linear measure. Results: There was medium to large correlation of the CAHAI and the MAL (ρ = 0.60-0.62, p < 0.01) as well as the ABILHAND Questionnaire and the MAL (ρ = 0.44-0.51, p < 0.01). Change scores from the initial measurement to the post-intervention measurement demonstrated small to medium correlation of the CAHAI and the MAL (ρ = 0.27-0.31, p < 0.01) and medium to large correlation of the ABILHAND Questionnaire and the MAL (ρ = 0.37-0.41, p < 0.01). Overall, 7 of 8 hypotheses were supported. The hypothesis testing regarding the construct validity and responsiveness of the CAHAI and ABILHAND Questionnaire was confirmed. Conclusion: The CAHAI and ABILHAND Questionnaire are both responsive and suitable to detect changes in bilateral arm functional daily activities in individuals with chronic stroke. Patient-reported outcome measures are recommended to use along with therapist-rated outcome measures for upper limb capacity evaluation in stroke rehabilitation. Further study with a prospective study design to capture specific clinical features of participants and the use of body-worn sensors, such as the arm accelerometer, is suggested.

7.
J Neuroeng Rehabil ; 21(1): 49, 2024 04 08.
Artigo em Inglês | MEDLINE | ID: mdl-38589875

RESUMO

BACKGROUND: Non-invasive techniques such as central intermittent theta burst stimulation (iTBS) and repetitive peripheral magnetic stimulation (rPMS) have shown promise in improving motor function for patients with stroke. However, the combined efficacy of rPMS and central iTBS has not been extensively studied. This randomized controlled trial aimed to investigate the synergistic effects of rPMS and central iTBS in patients with stroke. METHOD: In this study, 28 stroke patients were randomly allocated to receive either 1200 pulses of real or sham rPMS on the radial nerve of the affected limb, followed by 1200 pulses of central iTBS on the ipsilesional hemisphere. The patients received the intervention for 10 sessions over two weeks. The primary outcome measures were the Fugl-Meyer Assessment-Upper Extremity (FMA-UE) and the Action Research Arm Test (ARAT). Secondary outcomes for activities and participation included the Functional Independence Measure-Selfcare (FIM-Selfcare) and the Stroke Impact Scale (SIS). The outcome measures were assessed before and after the intervention. RESULTS: Both groups showed significant improvement in FMA-UE and FIM-Selfcare after the intervention (p < 0.05). Only the rPMS + iTBS group had significant improvement in ARAT-Grasp and SIS-Strength and activity of daily living (p < 0.05). However, the change scores in all outcome measures did not differ between two groups. CONCLUSIONS: Overall, the study's findings suggest that rPMS may have a synergistic effect on central iTBS to improve grasp function and participation. In conclusion, these findings highlight the potential of rPMS as an adjuvant therapy for central iTBS in stroke rehabilitation. Further large-scale studies are needed to fully explore the synergistic effects of rPMS on central iTBS. TRIAL REGISTRATION: This trial was registered under ClinicalTrials.gov ID No.NCT04265365, retrospectively registered, on February 11, 2020.


Assuntos
Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Humanos , Fenômenos Magnéticos , Reabilitação do Acidente Vascular Cerebral/métodos , Estimulação Magnética Transcraniana/métodos , Resultado do Tratamento , Extremidade Superior , Método Duplo-Cego
8.
Bioorg Med Chem Lett ; 105: 129760, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38641151

RESUMO

The naturally occurring bile acid lithocholic acid (LCA) has been a crucial core structure for many non-sugar-containing sialyltranferase (ST) inhibitors documented in literature. With the aim of elucidating the impact of the terminal carboxyl acid substituent of LCA on its ST inhibition, in this present study, we report the (bio)isosteric replacement-based design and synthesis of sulfonate and sulfate analogues of LCA. Among these compounds, the sulfate analogue SPP-002 was found to selectively inhibit N-glycan sialylation by at least an order of magnitude, indicating a substantial improvement in both potency and selectivity when compared to the unmodified parent bile acid. Molecular docking analysis supported the stronger binding of the synthetic analogue in the enzyme active site. Treatment with SPP-002 also hampered the migration, adhesion, and invasion of MDA-MB-231 cells in vitro by suppressing the expression of signaling proteins involved in the cancer metastasis-associated integrin/FAK/paxillin pathway. In totality, these findings offer not only a novel structural scaffold but also valuable insights for the future development of more potent and selective ST inhibitors with potential therapeutic effects against tumor cancer metastasis.


Assuntos
Ácido Litocólico , Simulação de Acoplamento Molecular , Sialiltransferases , Ácido Litocólico/farmacologia , Ácido Litocólico/química , Ácido Litocólico/síntese química , Ácido Litocólico/análogos & derivados , Humanos , Sialiltransferases/antagonistas & inibidores , Sialiltransferases/metabolismo , Linhagem Celular Tumoral , Movimento Celular/efeitos dos fármacos , Inibidores Enzimáticos/farmacologia , Inibidores Enzimáticos/química , Inibidores Enzimáticos/síntese química , Relação Estrutura-Atividade , Sulfatos/química , Sulfatos/farmacologia , Sulfatos/síntese química , Metástase Neoplásica , Ácidos Sulfônicos/farmacologia , Ácidos Sulfônicos/química , Ácidos Sulfônicos/síntese química , Antineoplásicos/farmacologia , Antineoplásicos/química , Antineoplásicos/síntese química , Estrutura Molecular , Adesão Celular/efeitos dos fármacos , Relação Dose-Resposta a Droga , Paxilina/metabolismo , Paxilina/antagonistas & inibidores , Quinase 1 de Adesão Focal/antagonistas & inibidores , Quinase 1 de Adesão Focal/metabolismo , Descoberta de Drogas
9.
Int J Mol Sci ; 25(8)2024 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-38673867

RESUMO

Sialyltransferase-catalyzed membrane protein and lipid glycosylation plays a vital role as one of the most abundant post-translational modifications and diversification reactions in eukaryotes. However, aberrant sialylation has been associated with cancer malignancy and metastasis. Sialyltransferases thus represent emerging targets for the development of small molecule cancer drugs. Herein, we report the inhibitory effects of a recently discovered lithocholic acid derivative FCW393 on sialyltransferase catalytic activity, integrin sialyation, cancer-associated signal transduction, MDA-MB-231 and B16F10 cell migration and invasion, and in in vivo studies, on tumor growth, metastasis, and angiogenesis. FCW393 showed effective and selective inhibition of the sialyltransferases ST6GAL1 (IC50 = 7.8 µM) and ST3GAL3 (IC50 = 9.45 µM) relative to ST3GAL1 (IC50 > 400 µM) and ST8SIA4 (IC50 > 100 µM). FCW393 reduced integrin sialylation in breast cancer and melanoma cells dose-dependently and downregulated proteins associated with the integrin-regulated FAK/paxillin and GEF/Rho/ROCK pathways, and with the VEGF-regulated Akt/NFκB/HIF-1α pathway. FCW393 inhibited cell migration (IC50 = 2.6 µM) and invasion in in vitro experiments, and in in vivo studies of tumor-bearing mice, FCW393 reduced tumor size, angiogenesis, and metastatic potential. Based on its demonstrated selectivity, cell permeability, relatively low cytotoxicity (IC50 = 55 µM), and high efficacy, FCW393 shows promising potential as a small molecule experimental tool compound and a lead for further development of a novel cancer therapeutic.


Assuntos
Movimento Celular , Sialiltransferases , Sialiltransferases/metabolismo , Sialiltransferases/antagonistas & inibidores , Humanos , Animais , Camundongos , Linhagem Celular Tumoral , Movimento Celular/efeitos dos fármacos , Metástase Neoplásica , Feminino , Inibidores Enzimáticos/farmacologia , Inibidores Enzimáticos/química , Inibidores Enzimáticos/uso terapêutico , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Antineoplásicos/química , Transdução de Sinais/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Ácido Litocólico/farmacologia
10.
Lung ; 202(3): 343-356, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38678499

RESUMO

BACKGROUND: Severe asthma, characterized by inflammation and airway remodeling, involves fibroblast differentiation into myofibroblasts expressing α-SMA. This process leads to the production of fibronectin and connective tissue growth factor (CTGF), driven by factors such as transforming growth factor (TGF)-ß. Furthermore, the persistent presence of myofibroblasts is associated with resistance to apoptosis and mitochondrial dysfunction. The chemokine (C-X3-C motif) ligand 1 (CX3CL1) plays a role in tissue fibrosis. However, it is currently unknown whether neutralization of CX3CL1 decreases TGF-ß-induced fibroblast differentiation and mitochondrial dysfunction in normal human lung fibroblasts (NHLFs). METHODS: CX3CL1/C-X3-C motif chemokine receptor 1 (CX3CR1), CX3CL1 was analyzed by immunofluorescence (IF) or immunohistochemical (IHC) staining of ovalbumin-challenged mice. CX3CL1 release was detected by ELISA. TGF-ß-induced CTGF, fibronectin, and α-SMA expression were evaluated in NHLFs following neutralization of CX3CL1 (TP213) treatment for the indicated times by Western blotting or IF staining. Mitochondrion function was detected by a JC-1 assay and seahorse assay. Cell apoptosis was observed by a terminal uridine nick-end labeling (TUNEL) assay. RESULTS: An increase in CX3CL1 expression was observed in lung tissues from mice with ovalbumin-induced asthma by IF staining. CX3CR1 was increased in the subepithelial layer of the airway by IHC staining. Moreover, CX3CR1 small interfering (si)RNA downregulated TGF-ß-induced CTGF and fibronectin expression in NHLFs. CX3CL1 induced CTGF and fibronectin expression in NHLFs. TGF-ß-induced CX3CL1 secretion from NHLFs. Furthermore, TP213 decreased TGF-ß-induced CTGF, fibronectin, and α-SMA expression in NHLFs. Mitochondrion-related differentially expressed genes (DEGs) were examined after CX3CL1 neutralization in TGF-ß-treated NHLFs. TP213 alleviated TGF-ß-induced mitochondrial dysfunction and apoptosis resistance in NHLFs. CX3CL1 induced p65, IκBα, and IKKα phosphorylation in a time-dependent manner. Furthermore, CX3CL1-induced fibronectin expression and JC-1 monomer were decreased by p65 siRNA. TP213 reduced TGF-ß-induced p65 and α-SMA expression in NHLFs. CONCLUSIONS: These findings suggest that neutralizing CX3CL1 attenuates lung fibroblast activation and mitochondrial dysfunction. Understanding the impacts of CX3CL1 neutralization on fibroblast mitochondrial function could contribute to the development of therapeutic strategies for managing airway remodeling in severe asthma.


Assuntos
Apoptose , Receptor 1 de Quimiocina CX3C , Diferenciação Celular , Quimiocina CX3CL1 , Fator de Crescimento do Tecido Conjuntivo , Fibroblastos , Fibronectinas , Mitocôndrias , Fibrose Pulmonar , Fator de Crescimento Transformador beta , Quimiocina CX3CL1/metabolismo , Quimiocina CX3CL1/genética , Animais , Mitocôndrias/metabolismo , Mitocôndrias/efeitos dos fármacos , Mitocôndrias/patologia , Humanos , Fator de Crescimento do Tecido Conjuntivo/metabolismo , Fator de Crescimento do Tecido Conjuntivo/genética , Diferenciação Celular/efeitos dos fármacos , Apoptose/efeitos dos fármacos , Fibroblastos/metabolismo , Fibroblastos/efeitos dos fármacos , Fibroblastos/patologia , Fibrose Pulmonar/metabolismo , Fibrose Pulmonar/patologia , Fator de Crescimento Transformador beta/metabolismo , Receptor 1 de Quimiocina CX3C/metabolismo , Receptor 1 de Quimiocina CX3C/genética , Fibronectinas/metabolismo , Camundongos , Actinas/metabolismo , Pulmão/patologia , Pulmão/metabolismo , NF-kappa B/metabolismo , Transdução de Sinais , Asma/metabolismo , Asma/patologia , Modelos Animais de Doenças , Células Cultivadas , Miofibroblastos/metabolismo , Miofibroblastos/patologia , Miofibroblastos/efeitos dos fármacos , Ovalbumina
11.
Disabil Rehabil ; : 1-9, 2024 Mar 03.
Artigo em Inglês | MEDLINE | ID: mdl-38433459

RESUMO

PURPOSE: To assess the clinimetric properties of the Stroke Self-Efficacy Questionnaire (SSEQ) and estimate the minimal detectable change (MDC) and minimal clinically important difference (MCID) from the database of our randomized controlled trials (RCT) of individuals receiving stroke rehabilitation. METHODS: We retrieved the pre- and post-intervention scores of the SSEQ and Stroke Impact Scale (SIS) from 80 stroke survivors. The analysis of clinimetric properties was performed using: (1) confirmatory factor analysis and item response theory modeling (IRT) for construct validity; (2) standardized response mean and Glass's delta for responsiveness; (3) MDC based on the standard deviation (SD) or standard error of measurement (SEM) of the SSEQ change scores; (4) MCID determined by the external anchor-SIS; (5) conditional MDC (cMDC) derived from the IRT analysis. RESULTS: There was a bi-factorial construct with excellent model-data fit and marked responsiveness. The MDC determined by the SD and SEM were 1.5 and 3.0, respectively, and the MCIDs were 3.3 and 3.7. CONCLUSIONS: This study confirmed that SSEQ is a valid and reliable assessment tool for patients receiving stroke rehabilitation. We also provided practical threshold values, especially demonstrating the benefit of using individualized cMDC, to help clinicians better interpret the change in the SSEQ scores.


This study indicated that the Stroke Self-Efficacy Questionnaire (SSEQ) is reliable and may involve a bi-factor structure.The SSEQ total scale and the activity domain were highly responsive to change.The self-management domain of the SSEQ was moderately responsive.Using conditional minimal detectable change (cMDC) along with MDC may improve the interpretability of treatment change.

12.
Child Care Health Dev ; 50(2): e13231, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-38465844

RESUMO

BACKGROUND: Limited research exists regarding the effectiveness of electroencephalogram (EEG) neurofeedback training for children with cerebral palsy (CP) and co-occurring attention deficits (ADs), despite the increasing prevalence of these dual conditions. This study aimed to fill this gap by examining the impact of neurofeedback training on the attention levels of children with CP and AD. METHODS: Nineteen children with both CP and co-occurring ADs were randomly assigned to either a neurofeedback or control group. The neurofeedback group received 20 sessions of training, lasting approximately 1 h per day, twice a week. Theta/beta ratios of the quantitative electroencephalography (QEEG) recordings were measured pre-training and post-training in the resting state. The Continuous Performance Test (CPT), the Test of Visual Perceptual Skills-3rd Version (TVPS-3) and the Conners' Parent Rating Scale (CPRS) were measured at pre- and post-training. RESULTS: The neurofeedback group showed both decreased theta/beta ratios compared with control group (p = 0.04) at post-training and a within-group improvement during training (p = 0.02). Additionally, the neurofeedback group had a trend of decreased omission rates of the CPT (p = 0.08) and the visual sequential memory and the visual closure subscores in the TVPS-3, compared with the control group (p = 0.02 and p = 0.01, respectively). CONCLUSIONS: The results suggested that children with CP and co-occurring AD may benefit from neurofeedback training in their attention level. Further research is needed to explore long-term effects and expand its application in this population.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Paralisia Cerebral , Neurorretroalimentação , Criança , Humanos , Neurorretroalimentação/métodos , Projetos Piloto , Paralisia Cerebral/complicações , Eletroencefalografia/métodos , Transtorno do Deficit de Atenção com Hiperatividade/terapia
13.
Sleep Med ; 115: 177-186, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38367360

RESUMO

OBJECTIVE: Child developmental rate holds predictive value for early-stage developmental trajectories, yet few studies explored how sleep problems during different infancy stages impact this rate. This study aims to investigate the correlation between sleep problems and child developmental trajectories. METHODS: This study utilized a prospective national cohort of 5006 children in Taiwan. The developmental inventories covering motor, cognitive, language, and socioemotional domains were collected through questionnaire-based in-person home interviews conducted at 3, 12, 24, and 36 months. Sleep problems data, encompassing bedtime regularity, sleep duration, and sleep quality, were collected at 3 and 12 months. Child developmental rate was assessed by analyzing the slope of developmental ability estimates over a period of time. RESULTS: Bedtime regularity and high-quality sleep at 3 and 12 months were found to be significantly associated with intercepts across all domains (estimate = -0.196∼0.233, p < 0.033). Children with high-quality sleep at 3 months showed enhanced developmental slopes in socioemotional domains (estimate = 0.032, p < 0.001). Atypical sleep duration at 3 and 12 months had differential detrimental association with child development in various domains (estimate = -0.108∼-0.016, p < 0.048). CONCLUSION: The relationship between sleep problems and child development exhibited variability based on the timing of exposure to these issues. Early exposure to low-quality sleep was significantly related to developmental functions and socioemotional developmental rate, potentially leading to increased developmental disparities as children age. Inadequate sleep duration in late infancy and excessive sleep duration in early infancy were both negatively associated with child development trajectories. Policymakers can use these findings to design targeted sleep programs for optimal child development.


Assuntos
Desenvolvimento Infantil , Transtornos do Sono-Vigília , Criança , Humanos , Lactente , Estudos Longitudinais , Estudos Prospectivos , Sono , Transtornos do Sono-Vigília/epidemiologia
14.
Disabil Rehabil Assist Technol ; : 1-11, 2024 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-38180348

RESUMO

PURPOSE: Locomotor experiences in upright postures are essential for developing toddlers' mobility and social functions. This pilot randomised controlled trial aimed to examine the effectiveness of using a modified ride-on car (ROC) with postural combinations of standing and sitting on mobility and social function in toddlers with motor delays. MATERIALS AND METHODS: Nineteen participants aged 1-3 years with mild, moderate or severe motor delays were randomly assigned to four ROC groups. The ROC groups had different combinations of standing and sitting, namely standing for 70 min (ROC-Stand70, five participants), standing for 45 min (ROC-Stand45, four participants), standing for 25 min (ROC-Stand25, five participants) and sitting for 70 min (ROC-Sit70, five participants). All participants participated in 2-h sessions twice a week for 12 weeks. The Pediatric Evaluation of Disability Inventory, Goal Attainment Scaling and Bayley-III tests were administered before and after the intervention, and after 12 weeks of follow-up. A mixed-model analysis of variance was used to compare inter- and intra-group differences. This trial was registered at ClinicalTrials.gov (NCT03707405). RESULTS: All groups showed significantly improved mobility, social function and goal achievement at the post-test (p < .001). However, no significant changes were observed in Bayley scores. CONCLUSIONS: Combining physical and social environmental modifications with active exploration is crucial for early power mobility training in toddlers with motor delays. To enhance the robustness and generalisability of our findings, future studies should include larger sample sizes, consider variations in motor delays, and measure energy expenditure during the intervention.Implications for rehabilitationProviding active exploratory experience using ride-on cars (ROCs) with various postural combinations can improve a child's mobility.The ROC training with various postural combinations can improve social function, and the degree of improvement may depend on the severity of motor delays.Setting goals with caregivers and incorporating their roles in the training process can empower them to interact with children more frequently and actively.

15.
Biomed J ; 47(1): 100608, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37196878

RESUMO

BACKGROUND: Evidence reveals frequent sugar consumption worsens cognition in animal models, and similar effects on child development are probable. We aimed to investigate the influence of sweetened foods (SFs) on child developmental trajectories. METHODS: The prospective cohort recruited 3-month-old children in Taiwan from 1st April 2016 to 30th June 2017. Developmental inventories including cognitive, language, and motor domains, were measured at the age of 3-,12-, 24-, and 36 months old via in-person interviews. We constructed latent growth models with covariates to estimate the influence of SFs on child development. RESULTS: Ultimately, 4782 children (50.7% boys) were included in the statistical analysis. In the cognitive domain, consumption at one year of age significantly affected the intercept, but not the linear slope and quadratic term (intercept: estimate = -0.054, p < .001); consumption at two years of age significantly affected the intercept and quadratic term (intercept: estimate = -0.08, p < .001; quadratic term: estimate = -0.093, p = .026), but not the linear slope. In the language domain, only consumption at two years of age significantly affected the intercept (estimate = -0.054, p < .001). In the motor domain, consumption at two years of age significantly affected the linear slope and quadratic term (estimate = 0.080, p = .011 and estimate = -0.082, p = .048, respectively). CONCLUSION: We found SFs exposure at different times has different negative effects on child development. Early exposure to SFs harmed children's cognitive function. Relatively late exposure to SFs not only deteriorated children's cognitive and language abilities but also decelerated developmental velocity in cognitive and motor domains.


Assuntos
Desenvolvimento Infantil , Idioma , Criança , Masculino , Animais , Humanos , Lactente , Feminino , Estudos Prospectivos , Cognição , Taiwan
16.
Ultrason Sonochem ; 101: 106661, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37924615

RESUMO

We investigated whether the upper limb muscle stiffness quantified by the acoustic radiation force impulse shear wave elastography (ARFI/SWE) is a potential biomarker for age-related muscle alteration and functional decline in patients with Duchenne muscular dystrophy (DMD). 37 patients with DMD and 30 typically developing controls (TDC) were grouped by age (3-8, 9-11, and 12-18 years). ARFI/SWE measured the biceps and deltoid muscle's shear wave velocities (SWVs). Performance of Upper Limb Module (PUL 1.2 module) assessed muscle function in DMD patients. Mann Whitney test compared muscle SWVs between DMD and TDC, stratified by three age groups. We used analysis of variance with Bonferroni correction to compare muscle SWVs between DMD and TDC and correlated muscle SWVs with PUL results in the DMD group. Results showed that the SWVs of biceps differentiated DMD patients from TDC across age groups. Younger DMD patients (3-8 years) exhibited higher SWVs (p = 0.013), but older DMD patients (12-18 years) showed lower SWVS (p = 0.028) than same-aged TDC. DMD patients had decreasing biceps SWVs with age (p < 0.001), with no such age effect in TDC. The SWVs of deltoid and biceps positively correlated with PUL scores (r = 0.527 âˆ¼ 0.897, P < 0.05) and negatively correlated with PUL timed measures (r = -0.425 âˆ¼ -0.542, P < 0.05) in DMD patients. Our findings suggest that ARFI/SWE quantifying the SWVs in upper limb muscle could be a potential biomarker to differentiate DMD from TDC across ages and that DMD patients showed age-related muscle alteration and limb functional decline.


Assuntos
Técnicas de Imagem por Elasticidade , Distrofia Muscular de Duchenne , Humanos , Distrofia Muscular de Duchenne/diagnóstico por imagem , Técnicas de Imagem por Elasticidade/métodos , Extremidade Superior , Músculo Esquelético/diagnóstico por imagem , Acústica , Biomarcadores
17.
Cancer Med ; 12(18): 18767-18785, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37667978

RESUMO

BACKGROUND: The efficacy of CD22 or CD19 chimeric antigen receptor T (CAR-T) cells in the management of acute lymphoblastic leukemia (ALL) and non-Hodgkin lymphoma (NHL) was observed. Because antigen loss and lack of CAR-T-cell persistence are the leading causes of progressive disease following single-antigen targeting, we evaluated CD22/CD19 dual-targeting CAR-T-cell therapy efficacy and safety in relapsed/refractory B-cell malignancies. METHODS: The Web of Science, PubMed, Cochrane, and Embase databases were searched until July 2022. Patients confirmed with any relapsed/refractory B-cell hematological malignancies were included regardless of age, gender, or ethnicity, receiving CD22 and CD19-dual-targeting CAR-T-cell therapy. The studies conducted on patients with coexisting other cancer were excluded. We used random-effect models to explore the outcome, and heterogeneity was investigated by subgroup analysis. RESULTS: Fourteen studies (405 patients) were included. The pooled overall response (OR) and complete remission (CR) were 97% and 93%, respectively, for ALL patients. The 1-year proportions of overall survival (OS) and progression-free survival (PFS) were 70% and 49%, respectively. For NHL, OR occurred in 85% of patients, and 57% experienced CR. The results illustrated that the 1-year OS and 1-year PFS were 77% and 65%, respectively. The subgroup analysis showed that the dual-targeting modality achieved higher CR in the following cases: coadministration of CD22/CD19-CAR-T cells and third-generation CAR-T cells combined with ASCT and BEAM pretreatment. The ALL and NHL groups seemed similar in treatment-related toxicity: all grade cytokine release syndrome (CRS), severe CRS, and neurotoxicity occurred in 86%, 7%, and 12% of patients, respectively. CONCLUSIONS: Our meta-analysis demonstrated that the CD22/CD19 dual-targeting CAR-T-cell strategy has high efficiency with tolerable adverse effects in B-cell malignancies.

18.
Disabil Rehabil ; : 1-11, 2023 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-37183406

RESUMO

PURPOSE: To evaluate the efficacy of environment-based intervention on participation outcomes and parent efficacy in autistic children. MATERIALS AND METHODS: Twenty-one autistic children 6-10 years old and their parents were randomized to environment-based intervention (n = 11) or usual care (n = 10). The environment-based intervention targets individualized participation goals in leisure and community activities through changing environment and activity demands. The study outcomes were Canadian Occupational Performance Measure (COPM), Goal attainment scaling (GAS), and Parent Empowerment and Efficacy Measure (PEEM). Assessments included baseline, 12 weeks (post-test), and 24 weeks (follow-up). Mixed ANOVAs were used to examine within-group and between-group effects in outcome variables. RESULTS: The COPM performance and satisfaction scores and GAS T-scores increased after environment-based intervention from baseline to 12 weeks and 24 weeks (p < 0.001) but did not significantly differ from usual care. The medium to large effect sizes of COPM performance and GAS T-scores favored the environment-based intervention. For the PEEM scores, no significant differences were found. CONCLUSIONS: Environment-based intervention may support school-age autistic children to participate in self-chosen activities over time. The intervention effects on participation goals and parent efficacy, however, were inconclusive and need further research.


Environmental barriers are important attributes to participation restriction in autistic children.Interventions focusing on modifying the task and environment is viable in supporting the participation of autistic children.The environment-based intervention appears to improve the participation goals in leisure and community-based activities over time.The environment-focused strategies may include providing social support, enabling access to a sensory-friendly environment, finding inclusive programs, adapting task demands, and managing routines.

19.
Life Sci ; 321: 121615, 2023 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-37001403

RESUMO

AIMS: Actinomycin (Act) D, a polypeptide antibiotic, is used clinically to inhibit the growth of malignant tumors. Act D binds to DNA at the transcription initiation complex to prevent the elongation of RNA. Act D causes DNA damage, growth inhibition, and cell death. Myeloid cell leukemia (Mcl-1) is an anti-apoptotic Bcl-2 family member protein, and the present study explored the effects and molecular mechanism of Act D-induced Mcl-1 downregulation. MAIN METHODS: Human adenocarcinoma A549 cells were used to check the cytotoxic signaling pathways of Act D, particularly in apoptotic mechanism, in a cell-based study approach. Specific blockers targeting the apoptotic factors were examined for their possible roles. KEY FINDINGS: We found that Act D caused cell growth inhibition and apoptosis. Propidium iodide-based flow cytometric analysis and immunostaining confirmed cell apoptosis. Treatment with Act D caused DNA damage, followed by p53-independent cell death. Western blotting showed a significant decrease in Mcl-1 expression, mitochondrial transmembrane potential loss, and caspase-9/caspase-3 cascade activation. The proteasome inhibitor MG132 reversed Act D-induced Mcl-1 downregulation. However, pharmacological inhibition of glycogen synthase kinase-3, p53 expression, ER stress, autophagy, and vesicle acidification, which are Mcl-1-regulating signaling pathways, did not rescue these effects. Notably, Cullin-Ring E3 ligase partially mediated Mcl-1 downregulation. Administration of transforming growth factor-ß induced mesenchymal cell differentiation, but Act D still decreased Mcl-1 and caused cell apoptosis. SIGNIFICANCE: All of these data show a potential pro-apoptotic effect for Act D by facilitating Mcl-1 uncanonical downregulation.


Assuntos
Leucemia , Neoplasias Pulmonares , Humanos , Dactinomicina/farmacologia , Dactinomicina/metabolismo , Regulação para Baixo , Proteína de Sequência 1 de Leucemia de Células Mieloides/metabolismo , Antibacterianos/farmacologia , Proteína Supressora de Tumor p53/metabolismo , Linhagem Celular Tumoral , Neoplasias Pulmonares/metabolismo , Apoptose , Células Mieloides , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo
20.
Artigo em Inglês | MEDLINE | ID: mdl-36901133

RESUMO

Many stroke survivors demonstrate arm nonuse despite good arm motor function. This retrospective secondary analysis aims to identify predictors of arm nonusers with good arm motor function after stroke rehabilitation. A total of 78 participants were categorized into 2 groups using the Fugl-Meyer Assessment Upper Extremity Scale (FMA-UE) and the Motor Activity Log Amount of Use (MAL-AOU). Group 1 comprised participants with good motor function (FMA-UE ≥ 31) and low daily upper limb use (MAL-AOU ≤ 2.5), and group 2 comprised all other participants. Feature selection analysis was performed on 20 potential predictors to identify the 5 most important predictors for group membership. Predictive models were built with the five most important predictors using four algorithms. The most important predictors were preintervention scores on the FMA-UE, MAL-Quality of Movement, Wolf Motor Function Test-Quality, MAL-AOU, and Stroke Self-Efficacy Questionnaire. Predictive models classified the participants with accuracies ranging from 0.75 to 0.94 and areas under the receiver operating characteristic curve ranging from 0.77 to 0.97. The result indicates that measures of arm motor function, arm use in activities of daily living, and self-efficacy could predict postintervention arm nonuse despite good arm motor function in stroke. These assessments should be prioritized in the evaluation process to facilitate the design of individualized stroke rehabilitation programs to reduce arm nonuse.


Assuntos
Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Humanos , Atividades Cotidianas , Braço , Estudos Retrospectivos , Recuperação de Função Fisiológica , Extremidade Superior
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