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1.
J Environ Manage ; 315: 115189, 2022 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-35523071

RESUMO

The role of cultural ecosystem services (CES) is vital to consider when developing ecological sustainable development policies that can improve the well-being of humans. Research on CES has increased in recent years; however, few studies have explored the complex mechanisms driving perceptions of CES and the factors influencing those perceptions. In areas with unique landforms and fragile ecological environments, this type of research is difficult and rare. To address this research gap, this focuses on a typical karst area Guilin Xingping in China, evaluating residents' perceptions of local CES, and applying qualitative comparative analysis (QCA) to explore the driving mechanism behind those perceptions. We found that the satisfaction of material needs is a prerequisite and basis for further improving residents' spiritual perceptions and pursuits. Residents' socio-economic level, understanding of resource importance, and economic value determine whether residents can fully perceive the value of CES. Optimizing the ability of managers, improving relevant systems, and improving the experience with and understanding of ecosystems have a more than 50% probability of improving perceptions related to CES. The research shows that the combination of multiple antecedents can achieve a high level of perceptions related to CES. Managers can refer to the best path for policy regulation based on the actual situation. Finally, this study provides a new policy scheme for promoting ecological sustainable development and improving residents' well-being, and can provide insights to inform the sustainable development of other karst areas.


Assuntos
Conservação dos Recursos Naturais , Ecossistema , China , Humanos , Satisfação Pessoal , Políticas
2.
Anal Biochem ; 563: 20-24, 2018 12 15.
Artigo em Inglês | MEDLINE | ID: mdl-30273556

RESUMO

A simple and effective fluorescent sensor bearing pyridine units was designed and synthesized. The sensor can detect Zn2+ with high selectivity accompanied by a distinct fluorescence turn-on response, inducing the fluorescent color markedly changed from darkness to bright green. The limit of detection (LOD) was calculated as 8.56 × 10-9 M with a good linearity (R = 0.95943). In addition, the chelate of sensor with Zn2+ can further recognize H2PO4-/HSO4- with notable fluorescence quenching behaviors over other anions and the LODs were as low as 3.44 × 10-6 M (R = 0.99762) and 3.84 × 10-6 M (R = 0.99315), respectively.


Assuntos
Espectrometria de Fluorescência , Sulfatos/química , Sulfitos/química , Zinco/química , Limite de Detecção
3.
Med Sci Monit ; 21: 3868-74, 2015 Dec 11.
Artigo em Inglês | MEDLINE | ID: mdl-26656070

RESUMO

BACKGROUND Inflammatory responses in utero and in neonates have been involved in the development of white matter lesions. This study aimed to investigate the role of tumor necrosis factor-alpha (TNF-α) in spastic cerebral palsy. MATERIAL AND METHODS Plasma TNF-α was measured by ELISA in 54 children with spastic cerebral palsy and 28 aged-matched controls. Both groups were split into age subgroups (1-3 vs. 4-12). Gross motor function and activities of daily living were assessed on enrollment and after 6 months of rehabilitation. RESULTS TNF-α was higher in patients with cerebral palsy than in controls in young (P<0.001) and older subjects (P<0.001). TNF-α levels were comparable in both control subgroups (P=0.819). Younger patients with cerebral palsy had significantly higher TNF-α levels compared with older ones (P<0.001). Pre-rehabilitation TNF-α levels correlated with improvements in activities of daily living after rehabilitation (P<0.001). CONCLUSIONS Children with cerebral palsy showed higher plasma levels of TNF-α than controls. In addition, pre-treatment TNF-α levels were correlated with the improvements after rehabilitation therapy.


Assuntos
Paralisia Cerebral/fisiopatologia , Fator de Necrose Tumoral alfa/sangue , Paralisia Cerebral/sangue , Criança , Pré-Escolar , Humanos , Lactente , Índice de Gravidade de Doença
4.
Front Neurosci ; 17: 1281160, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38192508

RESUMO

Objective: The purpose of this study was to utilize functional near-infrared spectroscopy (fNIRS) to identify changes in cortical activity caused by focal muscle vibration (FMV), which was directly administered to the affected forearm flexor muscles of hemiplegic stroke patients. Additionally, the study aimed to investigate the correlation between these changes and the clinical characteristics of the patients, thereby expanding the understanding of potential neurophysiological mechanisms linked to these effects. Methods: Twenty-two stroke patients with right hemiplegia who were admitted to our ward for rehabilitation were selected for this study. The fNIRS data were collected from subjects using a block-design paradigm. Subsequently, the collected data were analyzed using the NirSpark software to determine the mean Oxyhemoglobin (Hbo) concentrations for each cortical region of interest (ROI) in the task and rest states for every subject. The stimulation task was FMV (frequency 60 Hz, amplitude 6 mm) directly applied to belly of the flexor carpi radialis muscle (FCR) on the affected side. Hbo was measured in six regions of interest (ROIs) in the cerebral cortex, which included the bilateral prefrontal cortex (PFC), sensorimotor cortex (SMC), and occipital cortex (OC). The clinical characteristics of the patients were assessed concurrently, including Lovett's 6-level muscle strength assessment, clinical muscle tone assessment, the upper extremity function items of the Fugl-Meyer Assessment (FMA-UE), Bruunstrom staging scale (BRS), and Modified Barthel index (MBI). Statistical analyses were conducted to determine the activation in the ROIs and to comprehend its correlation with the clinical characteristics of the patients. Results: Statistical analysis revealed that, except for right OC, there were statistically significant differences between the mean Hbo in the task state and rest state for bilateral SMC, PFC, and left OC. A positive correlation was observed between the muscle strength of the affected wrist flexor group and the change values of Hbo (Hbo-CV), as well as the beta values in the left SMC, PFC, and OC. However, no statistical correlation was found between muscle strength and Hbo-CV or beta values in the right SMC, PFC, and OC. The BRS of the affected upper limb exhibited a positive correlation with the Hbo-CV or beta values in the left SMC and PFC. In contrast, no statistical correlation was observed in the right SMC, PFC, and bilateral OC. No significant correlation was found between the muscle tone of the affected wrist flexor group, FMA-UE, MBI, and Hbo-CV or beta values of cortical ROIs. Conclusion: FMV-evoked sensory stimulation applied directly to the FCR belly on the paralyzed side activated additional brain cortices, including bilateral PFC and ipsilesional OC, along with bilateral SMC in stroke patients. However, the clinical characteristics of the patients were only correlated with the intensity of ipsilesional SMC and PFC activation. The results of this study provide neurophysiological theoretical support for the expanded clinical application of FMV.

5.
Environ Sci Pollut Res Int ; 29(26): 40110-40122, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35112261

RESUMO

In recent years, China had released various environmental regulations in order to respond climate change and corresponding environmental issues. However, due to imbalanced economic development and industrial structure, different Chinese regions had different enforcement levels on environmental regulations, which led to the regional transfer of pollution-intensive industries. To study the regional disparities on carbon emission transfer, this paper used the propensity score matching-difference in differences method (hereinafter abbreviated as "PSM-DID") to evaluate the mechanism between carbon trading pilot policies and the transfer of pollution-intensive industries. Panel data on 30 Chinese provinces were used to test the validity of the "pollution haven hypothesis," covering the period of 2010-2018. The empirical results showed that under the constraints of established environmental regulation, the pilot policy promoted the transfer of pollution-intensive industries to a certain extent and verified the "pollution haven hypothesis"; the proportion of the secondary sector and energy industry in the pilot areas had been reduced after the pilot policy; on the contrary, the technical level and the economic development level of the pilot provinces and cities had been further improved.


Assuntos
Carbono , Gases de Efeito Estufa , Carbono/análise , Dióxido de Carbono/análise , China , Desenvolvimento Econômico , Indústrias
6.
Tissue Cell ; 73: 101649, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34583247

RESUMO

Various methods have been used to induce the neuronal differentiation of marrow mesenchymal stem cells (MSCs). However, the limited induction efficiency of cells in vitro has restricted their use. Therefore, identifying a simple and efficient treatment method is necessary. Dendrobium officinale is an important traditional Chinese medicine, and its main component, polysaccharides, has many pharmacological activities. However, the effects of D. officinale polysaccharide (DOP) on the neuronal differentiation of bone marrow mesenchymal stem cells (BMSCs) and treatment of ischaemic stroke remain unknown. We found that DOP promoted the neuronal differentiation of BMSCs by increasing the expression levels of neural markers, and the optimal concentration of DOP was 25 µg/mL. Additionally, the Notch signalling pathway was inhibited during the neuronal differentiation of BMSCs induced by DOP, and this effect was strengthened using an inhibitor of this pathway. The Wnt signalling pathway was activated during the differentiation of BMSCs, and inhibition of the Wnt signalling pathway downregulated the expression of neuronal genes. Furthermore, the transplantation of neuron-like cells induced by DOP improved neuronal recovery, as the brain infarct volume, neurologic severity scores and levels of inflammatory factors were all significantly reduced in vivo. In conclusion, DOP is an effective inducer of the neuronal differentiation of BMSCs and treatment option for ischaemic stroke.


Assuntos
Dendrobium/química , Células-Tronco Mesenquimais/citologia , Neurônios/citologia , Polissacarídeos/farmacologia , Recuperação de Função Fisiológica , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/terapia , Animais , Biomarcadores/metabolismo , Diferenciação Celular/efeitos dos fármacos , Forma Celular/efeitos dos fármacos , Ventrículos Cerebrais/patologia , Modelos Animais de Doenças , Infarto da Artéria Cerebral Média/complicações , Masculino , Neurônios/efeitos dos fármacos , Ratos Sprague-Dawley , Receptores Notch/metabolismo , Recuperação de Função Fisiológica/efeitos dos fármacos , Via de Sinalização Wnt/efeitos dos fármacos
7.
World J Clin Cases ; 8(2): 444-450, 2020 Jan 26.
Artigo em Inglês | MEDLINE | ID: mdl-32047797

RESUMO

BACKGROUND: In clinical practice, checkrein deformity is usually found in patients with calf injuries after ankle fracture or distal tibial fracture. The patients with checkrein deformity mainly report distending pain in toe tips, pain when walking or wearing shoes, and gait instability. Previous studies have mainly reported surgical treatments for checkrein deformity, while few studies have reported using comprehensive rehabilitation alone to improve the checkrein deformity. CASE SUMMARY: A 28-year-old woman was admitted to the hospital due to unstable gait caused by pain in the right hallux, for which she was unable to stretch for over three months. The patient had undergone "resection of ameloblastoma at the right mandible, mandibulectomy, and autogenous right fibula grafting". The patient's hallux toe, as well as the second and third toes of the right foot could not be stretched, with pain in all the toes during walking. Based on the medical records of the patient, as well as the results of physical and auxiliary examinations, the main diagnosis was checkrein deformity in the right foot. Since the patient refused surgical treatment, rehabilitation was the only treatment option. At discharge, the patient reported evident improvement in the pain in the toes, gait stability, as well as increased ability to climb up and downstairs. CONCLUSION: Comprehensive rehabilitation therapy could effectively alleviate the manifestations of checkrein deformity and improve the walking ability of the patients.

8.
Brain Stimul ; 13(3): 655-663, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32289694

RESUMO

BACKGROUND: Transcranial direct current stimulation (tDCS) has been proven to be able to modulate motor cortical plasticity might have potential as an alternative, adjunctive therapy for Parkinson's disease (PD). However, the efficacy of tDCS in PD is still uncertain. A disease animal model may be useful to clarify the existence of a treatment effect and to explore an effective therapeutic strategy using tDCS protocols. OBJECTIVE: The current study was designed to identify the comprehensive therapeutic effects of tDCS in 6-hydroxydopamine (6-OHDA)-lesioned PD rats. METHODS: Following early and long-term tDCS application (starting 24 h after PD lesion, 300 µA anodal tDCS, 20 min/day, 5 days/week) in awake PD animals for a total of 4 weeks, the effects of tDCS on motor and non-motor behaviors as well as dopaminergic neuron degeneration levels, were identified. RESULTS: We found that the 4-week tDCS intervention significantly alleviated 6-OHDA-induced motor deficits in locomotor activity, akinesia, gait pattern and anxiety-like behavior, but not in apomorphine-induced rotations, recognition memory and depression-like behavior. Immunohistochemically, tyrosine hydroxylase (TH)-positive neurons in the substantia nigra were significantly preserved in the tDCS intervention group. CONCLUSIONS: These results suggest that early and long-term tDCS could exert neuroprotective effects and reduce the aggravation of motor dysfunctions in a 6-OHDA-induced PD rat model. Furthermore, this preclinical model may enhance the promising possibility of the potential use of tDCS and serve as a translational platform to further identify the therapeutic mechanism of tDCS for PD or other neurological disorders.


Assuntos
Oxidopamina/toxicidade , Transtornos Parkinsonianos/induzido quimicamente , Transtornos Parkinsonianos/prevenção & controle , Estimulação Transcraniana por Corrente Contínua/métodos , Animais , Eletrodos Implantados , Marcha/efeitos dos fármacos , Marcha/fisiologia , Masculino , Córtex Motor/efeitos dos fármacos , Córtex Motor/patologia , Transtornos Parkinsonianos/patologia , Ratos , Ratos Wistar , Fatores de Tempo , Resultado do Tratamento
9.
Res Dev Disabil ; 35(7): 1686-93, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24685096

RESUMO

The aim of the study was to explore the relationship between theory of mind (ToM) deficits and executive function (EF) impairments in children with cerebral palsy (CP), 42 CP with children and 42 typically developing (TD) children, acting as controls, were assessed on the tasks of ToM (false belief and faux pas) and EF (inhibition, updating and shifting). Results showed that CP children had deficits both in ToM and EF tasks. The correlation analyses showed that two EF components (inhibition and updating) were strongly related to false belief and faux pas in both two groups. We also found correlation between shifting and false belief and faux pas. However, this correlation was only found in TD children and not in children with CP. These findings suggest that children with CP lag behind TD children in both ToM and EF. Further, the results reveal, interestingly, that ToM deficits in CP children might be related to their inhibition and updating impairments, but not to shifting impairments.


Assuntos
Paralisia Cerebral/diagnóstico , Paralisia Cerebral/psicologia , Função Executiva , Teoria da Mente , Criança , Feminino , Humanos , Masculino , Psicometria , Valores de Referência , Estatística como Assunto , Escalas de Wechsler/estatística & dados numéricos
10.
PLoS One ; 8(7): e69926, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23894561

RESUMO

Glucocorticoids (GCs) are frequently used to treat many of the acute disease manifestations associated with inflammatory and autoimmune disorders. However, Toll-like receptor (TLR) pathway-activated plasmacytoid dendritic cells (pDCs) are resistant to GC-induced apoptosis, which leads to the inefficiency of GCs in the treatment of type I interferon-related autoimmune diseases, such as systemic lupus erythematosus (SLE). Therefore, compounds promoting pDC apoptosis may be helpful for improving the efficacy of GCs. In this study, we performed screening to identify microRNAs (miRNAs) involved in TLR-inhibited GC-induced pDC apoptosis and found an array of miRNAs that may regulate pDC apoptosis. Among those demonstrating altered expression, 6 miRNAs were inhibited in TLR-activated pDCs. Bioinformatics analysis and functional studies indicated that miR-29b and miR-29c were 2 key miRNAs involved in TLR-inhibited GC-induced pDC apoptosis. Furthermore, both of these miRNAs promoted pDC apoptosis by directly targeting Mcl-1 and Bcl-2 in human primary pDCs. Our findings provide new targets that could improve the efficacy of GCs for the treatment of SLE.


Assuntos
Apoptose/efeitos dos fármacos , Células Dendríticas/citologia , Dexametasona/farmacologia , Glucocorticoides/farmacologia , MicroRNAs/metabolismo , Receptores Toll-Like/metabolismo , Biologia Computacional , Ilhas de CpG , Células Dendríticas/metabolismo , Humanos , Proteína de Sequência 1 de Leucemia de Células Mieloides/genética , Proteína de Sequência 1 de Leucemia de Células Mieloides/metabolismo , Proteínas Proto-Oncogênicas c-bcl-2/genética , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo
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