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1.
J Cell Mol Med ; 28(2): e18068, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38041531

RESUMO

The role of lncRNAs in the pathogenesis of cancer, including colorectal cancer (CRC), has repeatedly been demonstrated. However, very few lncRNAs have been well annotated functionally. Our study identified a novel lncRNA upregulated in CRC, NONHSAT136151, which was correlated with clinical progression. In functional assays, NONHSAT136151 significantly enhanced CRC cell proliferation, migration and invasion. Mechanistically, NONHSAT136151 interacted with RNA-binding protein (RBP) QKI (Quaking) to interfere with QKI binding to target mRNAs and regulate their expression. As well, FOXP3 may be causally related to the dysregulation of NONHSAT136151 in CRC cells through its transcriptional activity. In conclusion, our findings identified a novel lncRNA regulated by FOXP3 participates in CRC progression through interacting with QKI, indicating a novel lncRNA-RBP interaction mechanism is involved in CRC pathogenesis.


Assuntos
Neoplasias Colorretais , MicroRNAs , RNA Longo não Codificante , Humanos , RNA Longo não Codificante/genética , RNA Longo não Codificante/metabolismo , Linhagem Celular Tumoral , Neoplasias Colorretais/patologia , Fatores de Transcrição/metabolismo , Proliferação de Células/genética , Regulação Neoplásica da Expressão Gênica , Movimento Celular/genética , MicroRNAs/genética , Fatores de Transcrição Forkhead/genética , Fatores de Transcrição Forkhead/metabolismo , Proteínas de Ligação a RNA/genética , Proteínas de Ligação a RNA/metabolismo
2.
Ecotoxicol Environ Saf ; 280: 116476, 2024 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-38820822

RESUMO

Rural waste accumulation leads to heavy metal soil pollution, impacting microbial communities. However, knowledge gaps exist regarding the distribution and occurrence patterns of bacterial communities in multi-metal contaminated soil profiles. In this study, high-throughput 16 S rRNA gene sequencing technology was used to explore the response of soil bacterial communities to various heavy metal pollution in rural simple waste dumps in karst areas of Southwest China. The study selected three habitats in the center, edge, and uncontaminated areas of the waste dump to evaluate the main factors driving the change in bacterial community composition. Pollution indices reveal severe contamination across all elements, except for moderately polluted lead (Pb); contamination severity ranks as follows: Mn > Cd > Zn > Cr > Sb > V > Cu > As > Pb. Proteobacteria, Actinobacteria, Chloroflexi, and Acidobacteriota predominate, collectively constituting over 60% of the relative abundance. Analysis of Chao and Shannon indices demonstrated that the waste dump center boasted the greatest bacterial richness and diversity. Correlation data indicated a predominant synergistic interaction among the landfill's bacterial community, with a higher number of positive associations (76.4%) compared to negative ones (26.3%). Network complexity was minimal at the dump's edge. RDA analysis showed that Pb(explained:46%) and Mn(explained:21%) were the key factors causing the difference in bacterial community composition in the edge area of the waste dump, and AK(explained:42.1%) and Cd(explained:35.2%) were the key factors in the center of the waste dump. This study provides important information for understanding the distribution patterns, co-occurrence networks, and environmental response mechanisms of bacterial communities in landfill soils under heavy metal stress, which helps guide the formulation of rural waste treatment and soil remediation strategies.


Assuntos
Metais Pesados , Microbiologia do Solo , Poluentes do Solo , Solo , Metais Pesados/análise , Metais Pesados/toxicidade , Poluentes do Solo/análise , Poluentes do Solo/toxicidade , China , Solo/química , Bactérias/efeitos dos fármacos , Bactérias/genética , Bactérias/classificação , RNA Ribossômico 16S , Instalações de Eliminação de Resíduos , Monitoramento Ambiental , Proteobactérias , Actinobacteria/genética , Microbiota/efeitos dos fármacos , Chloroflexi/efeitos dos fármacos , Chloroflexi/genética
3.
BMC Neurol ; 23(1): 339, 2023 Sep 26.
Artigo em Inglês | MEDLINE | ID: mdl-37752420

RESUMO

PURPOSE: This trial aims to investigate the efficacy and safety of virtual reality (VR) combined with repetitive transcranial magnetic stimulation (rTMS) for improving musculoskeletal pain and motor development in children with unilateral spastic cerebral palsy (CP). METHODS: This study protocol is for a randomized controlled trial consisting of 2 treatment sessions (3 days/week for 4 weeks in each session, with a 1-week interval between sessions). We will recruit children aged 3-10 years with unilateral spastic CP (Gross Motor Function Classification System level I or II). Participants will be randomly divided into 3 groups: the VR + rTMS group (immersive VR intervention, rTMS and routine rehabilitation therapy), rTMS group (rTMS and routine rehabilitation therapy), and control group (sham rTMS and routine rehabilitation therapy). VR therapy will involve a daily 40-minute movement training session in a fully immersive environment. rTMS will be applied at 1 Hz over the primary motor cortex for 20 min on the contralateral side. The stimulation intensity will be set at 90% of the resting motor threshold, with 1200 pulses applied. A daily 60-minute routine rehabilitation therapy session including motor training and training in activities of daily living will be administered to all participants. The primary outcome will be pain intensity, assessed by the Revised Face, Legs, Activity, Cry, and Consolability Scale (R-FLACC). The secondary outcomes will include motor development, evaluated by the 66-item version of the Gross Motor Function Measure (GMFM-66) and Fine Motor Function Measure (FMFM); balance capacity, measured by the interactive balance system; activities of daily living; and quality of life, measured by the Barthel index and the Chinese version of the Cerebral Palsy Quality of Life scale for Children (C-CP QOL-Child). Safety will be monitored, and adverse events will be recorded during and after treatment. DISCUSSION: Combined application of VR therapy and rTMS may reveal additive effects on pain management and motor development in children with spastic CP, but further high-quality research is needed. The results of this trial may indicate whether VR therapy combined with rTMS achieves a better analgesic effect and improves the motor development of children with spastic CP. TRIAL REGISTRATION: Registration number: ChiCTR230069853. Trial registration date: 28 March 2023. Prospectively registered.


Assuntos
Paralisia Cerebral , Dor Musculoesquelética , Humanos , Estimulação Magnética Transcraniana , Paralisia Cerebral/complicações , Qualidade de Vida , Atividades Cotidianas , Espasticidade Muscular , Ensaios Clínicos Controlados Aleatórios como Assunto
4.
Eur Spine J ; 32(1): 149-166, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36450863

RESUMO

PURPOSE: Osteoporosis is a risk factor for idiopathic scoliosis (IS) progression, but it is still unclear whether IS patients have bone mineral density (BMD) loss and a higher risk of osteoporosis than asymptomatic people. This systematic review aims to explore the differences in BMD and prevalence of osteoporosis between the IS group and the control group. METHODS: We searched 5 health science-related databases. Studies that were published up to February 2022 and written in English and Chinese languages were included. The primary outcome measures consisted of BMD z score, the prevalence of osteoporosis and osteopenia, and areal and volumetric BMD. Bone morphometry, trabecular microarchitecture, and quantitative ultrasound measures were included in the secondary outcome measures. The odds ratio (OR) and the weighted mean difference (WMD) with a 95% confidence interval (CI) were used to pool the data. RESULTS: A total of 32 case-control studies were included. The pooled analysis revealed significant differences between the IS group and the control group in BMD z score (WMD -1.191; 95% CI - 1.651 to -0.732, p < 0.001). Subgroup analysis showed significance in both female (WMD -1.031; 95% CI -1.496 to -0.566, p < 0.001) and male participants (WMD -1.516; 95% CI -2.401 to -0.632, p = 0.001). The prevalence of osteoporosis and osteopenia in the group with IS was significantly higher than in the control group (OR = 6.813, 95% CI 2.815-16.489, p < 0.001; OR 1.879; 95% CI 1.548-2.281, p < 0.000). BMD measures by dual-energy X-ray absorptiometry and peripheral quantitative computed tomography showed a significant decrease in the IS group (all p < 0.05), but no significant difference was found in the speed of sound measured by quantitative ultrasound between the two groups (p > 0.05). CONCLUSION: Both the male and female IS patients had a generalized lower BMD and an increased prevalence of osteopenia and osteoporosis than the control group. Future research should focus on the validity of quantitative ultrasound in BMD screening. To control the risk of progression in IS patients, regular BMD scans and targeted intervention are necessary for IS patients during clinical practice.


Assuntos
Doenças Ósseas Metabólicas , Osteoporose , Escoliose , Humanos , Masculino , Feminino , Criança , Adulto Jovem , Densidade Óssea , Escoliose/diagnóstico por imagem , Escoliose/epidemiologia , Escoliose/complicações , Osteoporose/diagnóstico por imagem , Osteoporose/epidemiologia , Osteoporose/complicações , Doenças Ósseas Metabólicas/diagnóstico por imagem , Doenças Ósseas Metabólicas/epidemiologia , Doenças Ósseas Metabólicas/complicações , Absorciometria de Fóton
5.
BMC Musculoskelet Disord ; 24(1): 48, 2023 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-36670417

RESUMO

BACKGROUND: Children with idiopathic scoliosis (IS) have a high risk of osteoporosis and IS with low bone mineral density (BMD) are susceptible to curve progression. This review aims to explore the risk factors of low BMD in children with IS. METHODS: Studies were retrieved from 5 databases that were published up to January 2022. Search terms are keywords in titles or abstracts, including subject headings related to "Scoliosis", "Bone Mineral Density", and "Risk Factors". Observational studies on risk factors of low BMD in children with IS were enrolled in this review. The number of studies, sample size, outcome measures, research type, endocrine, and lifestyle-related factors, gene/signal pathway, and other contents were extracted for qualitative analysis. RESULTS: A total of 56 studies were included in this scoping review. Thirty studies involved genetic factors that may affect BMD, including the Vitamin-D receptor gene, RANK/RANKL signal pathway, the function of mesenchymal stem cells, Runx2, Interleukin-6 (IL-6), and miR-145/ß-catenin pathway. Eight studies mentioned the influence of endocrine factors on BMD, and the results showed that serum levels of IL-6, leptin and its metabolites, and ghrelin in children with IS were different from the age-matched controls. In addition, there were 18 articles on lifestyle-related factors related to low BMD in children with IS, consisting of physical activity, calcium intake, Vitamin D level, and body composition. CONCLUSIONS: Genetic, endocrine, and lifestyle-related factors might relate to low BMD and even osteoporosis in IS. To prevent osteoporosis, the effectiveness of regular screening for low BMD risk factors in children with IS needs to be investigated. Additionally, clear risk factors suggest strategies for bone intervention. Future studies should consider the effectiveness of calcium and vitamin D supplements and physical activity in BMD improvement.


Assuntos
Doenças Ósseas Metabólicas , MicroRNAs , Osteoporose , Escoliose , Humanos , Criança , Cálcio , Interleucina-6 , Osteoporose/epidemiologia , Osteoporose/etiologia , Densidade Óssea/fisiologia , Escoliose/diagnóstico por imagem , Vitamina D
6.
J Aging Phys Act ; 31(6): 948-955, 2023 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-37263592

RESUMO

This prospective study aimed to determine which specific mobility tests were the most accurate for predicting falls in physically active older adults living in the community. Seventy-nine physically active older adults who met the American College of Sports Medicine physical activity guidelines volunteered. Participants were assessed and followed up for 12 months. Mobility assessments included the 30-s sit-to-stand test, five times sit-to-stand test, single-task timed-up-and-go test (TUG), motor dual-task TUG (Mot-TUG), and cognitive dual-task TUG (Cog-TUG). Mot-TUG and Cog-TUG performances were moderately correlated with number of falls (r = .359, p < .01 and r = .372, p < .01, respectively). When Mot-TUG, Cog-TUG, or Age were included as fall predictors, discrimination scores represented by the area under the receiver operating characteristic curve (AUC) were AUC (Mot-TUG) = 0.843 (p < .01), AUC (Cog-TUG) = 0.856 (p < .01), and AUC (Age) = 0.734 (p < .05). The cutoff point for Cog-TUG was 10.98 s, with test sensitivity of 1.00 and specificity of 0.66. Fall predictors for different populations may be based on different test methods. Here, the dual-task TUG test more accurately predicted falls in older adults who met American College of Sports Medicine's physical activity guidelines.


Assuntos
Vida Independente , Equilíbrio Postural , Humanos , Idoso , Estudos Prospectivos , Avaliação Geriátrica/métodos , Estudos de Tempo e Movimento
7.
Neural Plast ; 2022: 2036736, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35945967

RESUMO

Neuropathic pain and neuropsychiatric symptoms are common complications reported by the traumatic brain injury (TBI) population. Although a growing body of research has indicated the effectiveness of repetitive transcranial magnetic stimulation (rTMS) for the management of neurological and psychiatric disorders, little evidence has been presented to support the effects of rTMS on neuropathic pain and neuropsychiatric symptoms in patients with TBI in all age groups. In addition, a better understanding of the potential factors that might influence the therapeutic effect of rTMS is necessary. The objective of this preregistered systematic review and meta-analysis was to quantify the effects of rTMS on physical and psychological symptoms in individuals with TBI. We systematically searched six databases for randomized controlled trials (RCTs) of rTMS in TBI patients reporting pain and neuropsychiatric outcomes published until March 20, 2022. The mean difference (MD) with 95% confidence intervals (CIs) was estimated separately for outcomes to understand the mean effect size. Twelve RCTs with 276 TBI patients were ultimately selected from 1605 records for systematic review, and 11 of the studies were included in the meta-analysis. Overall, five of the included studies showed a low risk of bias. The effects of rTMS on neuropathic pain were statistically significant (MD = -1.00, 95% CI -1.76 to -0.25, P = 0.009), with high heterogeneity (I 2 = 76%). A significant advantage of 1 Hz rTMS over the right dorsolateral prefrontal cortex (DLPFC) in improving depression (MD = -6.52, 95% CI -11.58 to -1.46, P = 0.01) was shown, and a significant improvement was noted in the Rivermead Post-Concussion Symptoms Questionnaire-13 (RPQ-13) scores of mild TBI patients after rTMS (MD = -5.87, 95% CI -10.63 to -1.11, P = 0.02). However, no significance was found in cognition measurement. No major adverse events related to rTMS were reported. Moderate evidence suggests that rTMS can effectively and safely improve neuropathic pain, while its effectiveness on depression, postconcussion symptoms, and cognition is limited. More trials with a larger number of participants are needed to draw firm conclusions. This trial is registered with PROSPERO (PROSPERO registration number: CRD42021242364.


Assuntos
Lesões Encefálicas Traumáticas , Transtornos Mentais , Neuralgia , Lesões Encefálicas Traumáticas/complicações , Lesões Encefálicas Traumáticas/terapia , Cognição , Humanos , Transtornos Mentais/etiologia , Neuralgia/etiologia , Neuralgia/terapia , Estimulação Magnética Transcraniana , Resultado do Tratamento
8.
Med Probl Perform Art ; 37(1): 30-36, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35234803

RESUMO

BACKGROUND: Neck pain is common in dancers, especially female dancers, and the injury pattern varies in different genres of dance. Among dancesport performers, intensive neck left rotation is required in female International Standard dancers, but it is unknown whether neck pain is associated with neck rotation range of motion and proprioception. OBJECTIVES: To explore the associations between neck pain, cervical rotation range of motion, and proprioception in female International Standard dancers. METHODS: Twelve dancers with dance-related neck pain (age 19.9±1.9 yrs) volunteered, matched with 12 not reporting neck pain (age 22.2±2.4 yrs). A 100-mm visual analog scale (VAS) was used to record neck pain. Active rotation range of motion (AROM) of the cervical spine was measured using a tape measure. A cervical rotation reposition test that used a head-mounted laser projector on a linear scale was employed to measure the cervical spine proprioception, and the absolute error (AE) and variable error (VE) were calculated as proprioceptive acuity scores. RESULTS: Nine of 12 participants in the group with neck pain declared left side pain, with 2 reporting pain on both sides. The group with neck pain had significantly lower left rotation AROM (p<0.05). For proprioceptive acuity, mixed model ANOVA only showed that repositioning of the right side of the neck is more accurate and consistent than that of the left (both AE and VE p<0.05). Linear regression analysis indicated that left rotation AROM was significantly influenced by left neck pain (t=3.061, p=0.006, adjusted R2 = 0.267, and Durbin-Watson value = 1.776). CONCLUSIONS: Most participants in the group with neck pain showed left side pain, associated with decreased left rotation AROM. Early screening on cervical rotation mobility may be necessary to reduce future dance-related injury after the onset of neck pain. Proprioceptive acuity of the left side neck was significantly impaired compared with that of the right, indicating future proprioceptive intervention on the left side neck.


Assuntos
Cervicalgia , Propriocepção , Adolescente , Adulto , Estudos de Casos e Controles , Vértebras Cervicais , Feminino , Humanos , Amplitude de Movimento Articular , Adulto Jovem
9.
BMC Gastroenterol ; 21(1): 82, 2021 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-33622248

RESUMO

BACKGROUND: Migration of fish bones into abdominal para-aortic tissue after penetrating the junction of 3rd and 4th part of duodenum is incredibly rare. CASE PRESENTATION: A 68-year-old man was admitted to our hospital with persistent colic in the lower abdomen after eating fish two weeks ago. Abdominal computed tomography (CT) scan showed High density streaks along the anterior and lower edges of the 3rd part of duodenum with peripheral exudation and localized peritonitis. Esophagogastroduodenoscopy didn't find foreign bodies and perforations in the digestive tract. Laparoscopic surgery and intraoperative endoscopy were made to detect foreign bodies and perforation site was found. After transition to open surgery, the fish bone was found in abdominal para-aortic tissue and removed without complications. Postoperative recovery is smooth, and the patient resumed normal diet and was discharged. CONCLUSIONS: It is difficult to choose a treatment plan for foreign bodies at the 3rd part of the duodenum, because it is difficult to judge the damage caused by the foreign body to the intestine and the positional relationship with the surrounding important organs. Conservative treatment or surgical treatment both have huge risks. The handling of this situation will extremely test the psychology, physical strength and professional experience of the surgeon.


Assuntos
Corpos Estranhos , Migração de Corpo Estranho , Perfuração Intestinal , Abdome , Idoso , Animais , Osso e Ossos , Duodeno/diagnóstico por imagem , Corpos Estranhos/complicações , Corpos Estranhos/diagnóstico por imagem , Corpos Estranhos/cirurgia , Migração de Corpo Estranho/complicações , Migração de Corpo Estranho/diagnóstico por imagem , Migração de Corpo Estranho/cirurgia , Humanos , Perfuração Intestinal/diagnóstico por imagem , Perfuração Intestinal/etiologia , Perfuração Intestinal/cirurgia , Masculino
10.
Neural Plast ; 2021: 6552246, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34804154

RESUMO

The objective of this study was to systematically review the literature on the effects of cognitive behavioral therapy (CBT) on insomnia and pain in patients with traumatic brain injury (TBI). PubMed, Embase, the Cochrane Library, Cumulative Index to Nursing and Allied Health, and Web of Science databases were searched. Outcomes, including pain, sleep quality, and adverse events, were investigated. Differences were expressed using mean differences (MDs) with 95% confidence intervals (CIs). The statistical analysis was performed using STATA 16.0. Twelve trials with 476 TBI patients were included. The included studies did not indicate a positive effect of CBT on pain. Significant improvements were shown for self-reported sleep quality, reported with the Pittsburgh Self-Reported Sleep Quality Index (MD, -2.30; 95% CI, -3.45 to -1.15; P < 0.001) and Insomnia Severity Index (MD, -5.12; 95% CI, -9.69 to -0.55; P = 0.028). No major adverse events related to CBT were reported. The underpowered evidence suggested that CBT is effective in the management of sleep quality and pain in TBI adults. Future studies with larger samples are recommended to determine significance. This trial is registered with PROSPERO registration number CRD42019147266.


Assuntos
Lesões Encefálicas Traumáticas/terapia , Terapia Cognitivo-Comportamental/métodos , Manejo da Dor/métodos , Transtornos do Sono-Vigília/terapia , Adulto , Lesões Encefálicas Traumáticas/fisiopatologia , Lesões Encefálicas Traumáticas/psicologia , Terapia Cognitivo-Comportamental/tendências , Humanos , Dor/fisiopatologia , Dor/psicologia , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Transtornos do Sono-Vigília/fisiopatologia , Transtornos do Sono-Vigília/psicologia , Resultado do Tratamento
11.
Cancer Cell Int ; 19: 72, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30962766

RESUMO

BACKGROUND: Breast cancer anti-estrogen resistance 4 (BCAR4) is closely associated with colorectal cancer (CRC) initiation and propagation. However, the mechanisms underlying BCAR4 function in colon cancer remains largely unknown. In this study, we hypothesized that BCAR4 could regulate colon cancer stem/initiating cells (CSC) function and further facilitates the colon cancer progression. METHODS: qRT-PCR was used to examine the expression of BCAR4 and various CSC markers. FACS, acetaldehyde dehydrogenase (ALDH) activity and western blot assays were applicable to test the expression of CSC markers. CCK8, tumorsphere formation and transwell assays were adopted to examine the capacity of CRC cells proliferation, self-renewal and migration. Pull down assay was used to test the interaction between BCAR4 and miR-665. Luciferase reporter assay was used to examine the interaction of miR-665 and activators of transcription (STAT3). In vivo tumor xenograft study was used to verify the malignancy of CRC cells with inhibition of BCAR4. RESULTS: Breast cancer anti-estrogen resistance 4 was highly expressed in both CRC cells and stem/initiating cells. In addition, overexpression of BCAR4 facilitated the maintenance of ALDH positive cells (a type of cancer stem/initiating cells) stemness and promoted ALDH+ cells proliferation and migration. Inhibition of BCAR4 restricted ALDH+ cells proliferation and migration. We further proved that miR-665 was the target of BCAR4 and subsequently activated signal transducers and STAT3 signaling which is an important pathway in cancer stem cells self-renewal. CONCLUSIONS: Breast cancer anti-estrogen resistance 4 promotes the CRC cells stemness through targeting to miR-665/STAT3 signaling and identification of the BCAR4 in CRC stem cells provides a new insight into CRC diagnosis, treatment, prognosis and next-step translational investigations.

12.
Oncol Lett ; 27(5): 208, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38549804

RESUMO

Multiple myeloma (MM) and bone metastases are both common malignant tumors of the skeleton that share similar clinical manifestations and radiological features. The development of MM following rectal cancer surgery is relatively rare in clinical practice and is easily misdiagnosed as bone metastasis. The present study reported on a patient with MM and postoperative rectal cancer. A 65-year-old man had been diagnosed with low rectal cancer (poorly differentiated, T3N1M0) 10 years prior and underwent curative treatment at that time. During the 6-year follow-up period, no recurrence or metastasis of rectal cancer was detected. The patient was evaluated for bone pain 4 years ago and underwent multiple imaging examinations, including computed tomography (CT), magnetic resonance imaging, emission CT and positron emission tomography/CT at several well-known hospitals in China. All of these hospitals diagnosed the patient with bone metastasis from rectal cancer, in view of the earlier history. The patient's condition did not show any significant improvement despite treatment for bone metastasis. Subsequently, 3 years ago, the patient underwent surgical treatment at our hospital (Affiliated Hospital of Zunyi Medical University, Zunyi, China) for a hernia near the colostomy site combined with incomplete intestinal obstruction. Post-operatively, the patient developed a hematoma in the surgical area, along with stubborn anemia and abnormal coagulation function. No improvement was observed with hemostasis and multiple blood transfusions. The bone marrow smear was consistent with MM, with a significant elevation in serum IgA and ß2 microglobulin. The patient was ultimately diagnosed with MM (IgA-λ type), stage III, according to the Durie-Salmon staging system. The patient's condition improved with treatment for MM.

13.
ISA Trans ; 2024 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-38821851

RESUMO

This paper proposes a new geometric fault detection and isolation (FDI) strategy for uncertain neutral time-delay systems (UNTDS). Firstly, the concept of unobservability subspace is extended to the considered system. Subsequently, utilizing the geometric properties of factor space and canonical projection, the fault is divided into different unobservability subspaces. Therefore, an algorithm for constructing the subspace is developed for fault isolation. Finally, a set of observers is designed for the subsystems, and generates a set of structured residuals which is sensitive only to a specific fault. Additionally, the H∞ technique is utilized to suppress the disturbances and error signals due to time-varying delays on the residual. The simulation examples verify the effectiveness of the proposed approach.

14.
Front Bioeng Biotechnol ; 12: 1351913, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38476964

RESUMO

Introduction: Voluntary lateral weight shifting is essential for gait initiation. However, kinematic changes during voluntary lateral weight shifting remain unknown in people with low back pain (LBP). This study aims to explore the differences in kinematics and muscle activation when performing a voluntary lateral weight shifting task between patients with LBP and asymptomatic controls without pain. Methods: Twenty-eight participants volunteered in this study (14 in both the LBP group and the control group). The Sway Discrimination Apparatus (SwayDA) was used to generate a postural sway control task, mimicking lateral weight shifting movements when initiating gait. Kinematic parameters, including range of motion (ROM) and standard deviation of ROM (Std-ROM) of the lumbar spine, pelvis, and lower limb joints, were recorded using a motion capture system during lateral weight shifting. The electroactivity of the trunk and lower limb muscles was measured through surface electromyography using root mean square (RMS). The significant level was 0.05. An independent t-test was employed to compare kinematic parameters, and muscle activation between the LBP group and the control group. A paired-sample t-test, adjusted with Bonferroni correction (significant level of 0.025), was utilized to examine differences between the ipsilateral weight shifting towards side (dominant side) and the contralateral side. Results: The results of kinematic parameters showed significantly decreased ROM and std-ROM of the ipsilateral hip in the transverse plane (tROM = -2.059, p = 0.050; tstd-ROM = -2.670, p = 0.013), as well as decreased ROM of the ipsilateral knee in the coronal plane (t = -2.148, p = 0.042), in the LBP group compared to the control group. For the asymptomatic controls, significantly larger ROM and ROM-std were observed in the hip and knee joints on the ipsilateral side in contrast to the contralateral side (3.287 ≤ t ≤ 4.500, 0.001 ≤ p≤ 0.006), but no significant differences were found between the two sides in the LBP group. In addition, the LBP group showed significantly lower RMS of the biceps femoris than the control group (tRMS = -2.186, p = 0.044). Discussion: Patients with LBP showed a conservative postural control pattern, characterized by reduced ROM of ipsilateral joints and diminished activation of the biceps femoris. These findings suggested the importance of voluntary postural control assessment and intervention to maximize recovery.

15.
J Mot Behav ; : 1-12, 2024 May 02.
Artigo em Inglês | MEDLINE | ID: mdl-38697938

RESUMO

This study aimed to investigate whether patients with low back pain (LBP) had impaired lower limb proprioception and its association with somatosensory acuity. Thirty patients with LBP and 30 asymptomatic people volunteered, using Sway Discrimination Apparatus tests to assess somatosensory acuity during voluntary anteroposterior and mediolateral postural sway. Results showed significantly reduced somatosensory acuity in mediolateral sway in LBP patients (p = 0.005) with ankle, knee, and hip proprioception showing significantly impairment compared to asymptomatic controls (all p ≤ 0.012). Regression analysis showed that ankle and hip proprioception were significantly associated with somatosensory perception (0.001 ≤ p ≤ 0.026, 0.067 ≤ R2≤ 0.235). Overall, findings suggested a global deterioration of lower limb proprioception in LBP patients, with ankle and hip proprioception playing crucial role in somatosensory perception.

16.
Front Neurosci ; 17: 1097477, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36845424

RESUMO

Objective: Traditional Chinese Medicine (TCM) has considerable experience in the treatment of cerebral palsy (CP), but little evidence shows the effect of a combination of TCM and modern rehabilitation therapies on CP. This systematic review aims to evaluate the effect of integrated TCM and modern rehabilitation therapies on motor development in children with CP. Methods: We systematically searched five databases up to June 2022, including PubMed, the Cumulative Index to Nursing and Allied Health, Cochrane Library, Embase, and Web of Science. Gross motor function measure (GMFM) and Peabody Development Motor Scales-II were the primary outcomes to evaluate motor development. Secondary outcomes included the joint range of motion, the Modified Ashworth scale (MAS), the Berg balance scale, and Activities of Daily living (ADL). Weighted mean differences (WMD) and 95% confidence intervals (CIs) were used to determine intergroup differences. Results: A total of 2,211 participants from 22 trials were enrolled in this study. Among these, one study was at a low risk of bias and seven studies showed a high risk of bias. Significant improvements were found in GMFM-66 (WMD 9.33; 95% CI 0.14-18.52, P < 0.05, I 2 = 92.1%), GMFM-88 (WMD 8.24; 95% CI 3.25-13.24, P < 0.01, I 2 = 0.0%), Berg balance scale (WMD 4.42; 95% CI 1.21-7.63, P < 0.01, I 2 = 96.7%), and ADL (WMD 3.78; 95% CI 2.12-5.43, P < 0.01, I 2 = 58.8%). No adverse events were reported during the TCM intervention in the included studies. The quality of evidence was high to low. Conclusion: Integrated TCM and modern rehabilitation therapies may be an effective and safe intervention protocol to improve gross motor function, muscle tone, and the functional independence of children with CP. However, our results should be interpreted carefully because of the heterogeneity between the included studies. Systematic review registration: https://www.crd.york.ac.uk/PROSPERO/, identifier CRD42022345470.

17.
Front Neurosci ; 17: 1285747, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38235390

RESUMO

Introduction: Low back pain (LBP) is associated with altered somatosensory perception, which is involved in both involuntary and voluntary control of posture. Currently, there is a lack of methods and tools for assessing somatosensory acuity in patients with LBP. The purpose of this study was (1) to assess the reliability of the sway discrimination apparatus (SwayDA) (2) to evaluate the differences in somatosensory acuity between patients with LBP and pain-free individuals, and (3) to examine relationships between somatosensory acuity, severity of LBP, and mobility in patients with LBP. Methods: Twenty participants (10 patients with LBP and 10 matched asymptomatic controls) were recruited in a test-retest reliability test. Another 56 participants were recruited for this study with 28 individuals presenting with LBP and a further twenty-eight being asymptomatic. The SwayDA was custom-built to measure somatosensory perception during voluntary anterior-posterior (SwayDA-AP), medial-lateral to the dominant side (SwayDA-ML-D), and non-dominant side (SwayDA-ML-ND) postural sway control. Participants also completed mobility tests, including 10 times and 1-min sit-to-stand tests (10-STS, 1 m-STS). The area under the receiver operating characteristic curve (AUC) was calculated to quantify somatosensory acuity in discriminating different voluntary postural sway extents. Results: The ICC (2.1) for the SwayDA-AP, SwayDA-ML-D, and SwayDA-ML-ND were 0.741, 0.717, and 0.805 with MDC95 0.071, 0.043, and 0.050. Patients with LBP demonstrated significantly lower SwayDA scores (tSwayDA-AP = -2.142, p = 0.037; tSwayDA-ML-D = -2.266, p = 0.027) than asymptomatic controls. The AUC values of the SwayDA-AP test were significantly correlated with ODI (rSwayDA-AP-ODI = -0.391, p = 0.039). Performances on the 1 m-STS and the 10-STS were significantly correlated with the AUC scores from all the SwayDA tests (-0.513 ≤ r ≤ 0.441, all p < 0.05). Discussion: The SwayDA tests evaluated showed acceptable reliability in assessing somatosensory acuity during voluntary postural sway. Somatosensory acuity was diminished in patients with LBP compared to asymptomatic controls. In patients with LBP, lower somatosensory acuity was associated with increased LBP-related disability. Future research could focus on investigating the factors contributing to the decreased somatosensory perception and mobility in individuals with LBP.

18.
Front Neurosci ; 17: 1097475, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37325034

RESUMO

Objective: Fibromyalgia is a chronic musculoskeletal disorder characterized by generalized pain, which is also known as "muscular rheumatism" in Chinese medicine. We undertook this systematic review to evaluate the effectiveness of non-pharmacological traditional Chinese medicine (TCM) combined with conventional therapy on pain, health status, depression, and the quality of life of fibromyalgia patients. Methods: Studies were retrieved from five electronic databases (PubMed, the Cumulative Index to Nursing and Allied Health, Cochrane Library, Embase, and Web of Science) with publication date up to August 2022. We included randomized controlled trials examining the effects of a combination of non-pharmacological TCM and conventional therapy on pain intensity, health status, depression, and quality of life. Results: Four randomized controlled trials with 384 fibromyalgia patients met the inclusion criteria. Results of the meta-analysis showed that non-pharmacological TCM combined with conventional therapy exerted significant positive effects on alleviating pain at the post-intervention time point than conventional therapy only (visual analog scale WMD1 = -1.410, P < 0.01; pressure pain threshold WMD2 = 0.830, P < 0.001, respectively). Significant differences in pain assessment were also observed between the two groups after a long-term follow-up (12 months) (WMD1 = -1.040 and WMD2= 0.380, all P < 0.05). The combination therapy group also showed a greater reduction in fibromyalgia impact questionnaire than the control group after a long-term follow-up (WMD = -6.690, P < 0.05). Depression and pain-related quality of life showed no difference between groups (all P > 0.05). Conclusion: Non-pharmacological TCM combined with conventional therapy may be more effective in alleviating pain and improving health status than conventional therapy only. However, it remains some concerns over the safety and clinic application. Systematic review registration: Identifier: CRD42022352991.

19.
Nanomaterials (Basel) ; 12(18)2022 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-36145031

RESUMO

Exploiting multifunctional thin film transistors (TFTs) by low-temperature manufacturing strategy is a crucial step toward flexible electronics. Herein, a multifunctional indium-tungsten-oxide (IWO)-based TFT, gated by solid-state chitosan electrolyte membrane, is fabricated on paper substrate at room temperature. The chitosan exhibits a high specific electric-double-layer capacitance of 2.0 µF cm-2 due to the existence of mobile protons. The IWO-based TFT possesses excellent electrical properties, including a low threshold voltage of 0.2 V, larger current switching ratio of 1.3 × 106, high field effect mobility of 15.0 cm2 V-1s-1, and small subthreshold swing of 117 mV/decade, respectively. Multifunctional operations including inverter, Schmitt triggers, and NAND gate are successfully demonstrated. As an example of information processing, the essential signal transmission functions of biological synapses also be emulated in the fabricated IWO-based TFTs. The experimental results indicate that such flexible IWO-based TFTs on low-cost and biodegradable paper provide the new-concept building blocks for flexible electronics.

20.
Complement Ther Clin Pract ; 48: 101591, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35436695

RESUMO

BACKGROUND: The intestinal flora is involved in the bone development of children through a variety of mechanisms, but it remains unclear whether intervention of the intestinal flora can enhance children's bone development. METHODS: Six databases (PubMed, Web of Science, Embase, Cochrane Library, Cumulative Index to Nursing and Allied Health, and China National Knowledge Infrastructure) were searched for all English and Chinese studies published up to August 2021. Stata version 16.0 (StataCorp, College Station, TX, USA) was used. Bone mass density and biochemical markers related to bone metabolism were reported as the primary outcome, and the secondary outcomes were anthropometric parameters such as height, height Z score for age, and height velocity. Intergroup differences were determined by standardized mean differences (SMDs) and 95% confidence intervals (CIs). RESULTS: A total of 3245 participants from 20 RCTs and 370 participants from 8 crossover trials were included in the study. Significant differences were found in bone mineral density (SMD 0.47; 95% CI, 0.28 to 0.66; p < 0.001; I2 = 0.00%) and total serum calcium (SMD 1.07; 95% CI, 0.39 to 1.74; p < 0.001; I2 = 61.9%), as well as in height Z score for age (SMD = 0.11; 95% CI, 0.00 to 0.22; P = 0.044; I2 = 0%). The overall quality of evidence ranged from moderate to very low. CONCLUSIONS: This systematic review and meta-analysis suggested that intestinal flora intervention was an effective method of improving bone mineral density, serum calcium, and height in infants, children, and adolescents. Future studies with a larger sample size and longer intervention period are needed. The protocol of this systematic review was registered in PROSPERO and the registered number was CRD42021282606.


Assuntos
Microbioma Gastrointestinal , Adolescente , Desenvolvimento Ósseo , Cálcio , Criança , China , Humanos , Lactente
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