Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 15 de 15
Filtrar
1.
Clin Rehabil ; 34(3): 287-298, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-31793340

RESUMO

OBJECTIVE: To systematically investigate how fatigue, depression, anxiety, sleep quality, and life quality are influenced by the Internet-based self-management program (IBSMP) among cancer patients. DATA SOURCES: Eight databases (Cochrane Library, Ovid, Web of Science, Medline, Embase, Chinese biomedical database (CBM), China National Knowledge Infrastructure (CNKI), and Wanfang) were systematically searched from inception to January 2019. METHODS: The aim of this study is to identify randomized controlled trials (RCTs) associated with the IBSMP among cancer-related fatigue (CRF) patients. Two reviewers independently screened 1128 records and selected 13 articles, including 1603 patients for inclusion. The quality of the evidence was assessed at the study level and at the outcome level. RESULTS: The meta-analysis showed that the IBSMP was effective for ameliorating fatigue and related symptoms among cancer survivors (the Brief Fatigue Index, relative risk = 0.74, 95% confidence interval (CI; 0.69, 0.79), P < 0.01; the Cancer Fatigue Scale or the Multidimension Fatigue Scale, weighted mean difference = -10.15, 95% CI (-11.42, -8.89), P < 0.01; the Self-rating Anxiety scale, relative risk = 1.07, 95% CI (0.55, 2.05), P < 0.01; the Self-rating Depression scale, relative risk = 0.70, 95% CI (0.60, 0.81), P < 0.01; the Pittsburgh Sleep Quality Index, relative risk = 0.46, 95% CI (0.33, 0.62), P < 0.01; and the Function Assessment of Cancer Therapy-General scale or the Function Assessment of Cancer Therapy-Breast, weighted mean difference = 13.76, 95% CI (3.38, 24.14), P < 0.01.). CONCLUSION: This meta-analysis demonstrates that the IBSMP, as one of the rehabilitation forms, can reduce the incidence of fatigue, depression, and anxiety and improve sleep quality and life quality among CRF patients.


Assuntos
Fadiga/terapia , Internet , Neoplasias/complicações , Neoplasias/psicologia , Autogestão , Ansiedade/etiologia , Ansiedade/terapia , Depressão/etiologia , Depressão/terapia , Fadiga/etiologia , Fadiga/psicologia , Humanos , Neoplasias/terapia , Qualidade de Vida
2.
Biochem Biophys Res Commun ; 496(3): 967-974, 2018 02 12.
Artigo em Inglês | MEDLINE | ID: mdl-29353038

RESUMO

Diabetes mellitus is a major cause to induce osteoporosis. Though the pathogenesis of osteoporosis progression has been well investigated, its still not fully understood. Recently, cereblon (CRBN) was considered as a negative modulator of adenosine monophosphate-activated protein kinase (AMPK) in vitro and in vivo. Here, we presented results indicating that CRBN could effectively regulate osteoporosis development. In STZ-induced wild type (WT) mice with diabetes, the osteoclasts were highly increased along with the deterioration of bone structure. However, CRBN knockout (KO) reduced blood glucose the levels and attenuated insulin resistance. What's more, CRBN ablation suppressed osteoclast differentiation and rescued diabetic bone loss in vivo, accompanied with decreased receptor activator of NF-kB ligand (RANKL), RANKL/osteoprotegerin (OPG), and tartrate-resistant acid phosphatase (TRAP) levels, as well as improved AMP-activated kinase (AMPK) α/acetyl-CoA carboxylase (ACC)αactivation. In vitro, suppressing CRBN expression could reduce RANKL-induced osteoclastogenesis, supported by the reduction of TRAP-positive cells. CRBN knockdown (KD) obviously reduced RANKL-induced activity of IκBα/nuclear factor-κB (NF-κB) pathway. In addition, osteoclast-specific genes expression levels stimulated by RANKL were also decreased by CRBN silence. More importantly, CRBN blockage increased phosphorylated AMPK-α and ACC-α expressions in RANKL-incubated cells. However, these processes could be abolished by suppressing AMPK-α with its inhibitor, Compound C. Collectively, our data suggested that CRBN is a potential treatment option against diabetes-induced osteolytic bone disease.


Assuntos
Citocinas/imunologia , Diabetes Mellitus Experimental/imunologia , Diabetes Mellitus Experimental/patologia , Proteínas do Tecido Nervoso/imunologia , Osteoporose/imunologia , Osteoporose/patologia , Proteínas Adaptadoras de Transdução de Sinal , Animais , Diabetes Mellitus Experimental/complicações , Fatores Imunológicos/imunologia , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Proteínas do Tecido Nervoso/genética , Osteoporose/etiologia
3.
Neurochem Res ; 41(11): 3147-3159, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27561290

RESUMO

Chemotherapy drugs such as vincristine (VCR) can cause neuropathic pain, and there is still lack of ideal strategy to treat it. The current study was designed to investigate effect of matrine (MT) on VCR-induced neuropathic pain in animal model. VCR (75 µg/kg, i.p. for 10 consecutive days) was administered to induce painful neuropathy model in mice. MT (15, 30 and 60 mg/kg, i.p.) and pregabalin (10 mg/kg, i.p.) were administered for 11 consecutive days. Various tests were performed to assess the degree of pain at different days (1, 6, 11, 16, and 21). Von Frey hair, hot plate, cold-plate and paw pressure tests were conducted to assess the degree of mechanical allodynia, thermal hyperalgesia, cold allodynia and mechanical hyperalgesia in the hind paw respectively. The electrophysiological and histopathological changes were also analyzed. Furthermore, tissue malondialdehyde (MDA), total antioxidant capacity (T-AOC),superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), total calcium (TCA), myeloperoxidase (MPO), tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), interleukin-10 (IL-10) were measured to investigate possible involvement of MT in inflammation and oxidative stress. Administration of MT attenuated the VCR-induced behavioral alterations as well as electrophysiological and histopathological changes in a dose dependent manner. Further, MT also attenuated the VCR-induced oxidative stress (MDA, T-AOC, GSH-Px, SOD and TCA) and inflammation (MPO, TNF-α, IL-6 and IL-10). Taken together, MT ameliorated VCR-induced painful neuropathy, which might be attributed to neuroprotective effects by subsequent reduction in oxidative stress and anti-inflammatory actions.


Assuntos
Alcaloides/farmacologia , Neuralgia/tratamento farmacológico , Fármacos Neuroprotetores/farmacologia , Quinolizinas/farmacologia , Vincristina/farmacologia , Animais , Antioxidantes/farmacologia , Modelos Animais de Doenças , Camundongos , Neuralgia/induzido quimicamente , Estresse Oxidativo/efeitos dos fármacos , Nervo Isquiático/efeitos dos fármacos , Fator de Necrose Tumoral alfa/metabolismo , Matrinas
4.
Stroke ; 45(12): 3502-7, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25336514

RESUMO

BACKGROUND AND PURPOSE: Mechanisms, acute management, and outcomes for patients who experience intracerebral hemorrhage may differ from patients with ischemic stroke. Studies of very early rehabilitation have been mainly undertaken in patients with ischemic stroke, and it is unknown if benefits apply to those with intracerebral hemorrhage. We hypothesized that early rehabilitation, within 48 hours of stroke, would improve survival and functional outcomes in patients with intracerebral hemorrhage. METHODS: This was a multicenter, randomized controlled study, with blinded assessment of outcome at 3 and 6 months. Eligible patients were randomized to receive standard care or standard care plus early rehabilitation. Primary outcome includes survival. Secondary outcomes includes health-related quality of life using the 36-item Short Form Questionnaire, function measured with the modified Barthel Index, and anxiety measured with the Zung Self-Rated Anxiety Scale. RESULTS: Two hundred forty-three of 326 patients were randomized (mean age, 59 years; 56% men). At 6 months, patients receiving standard care were more likely to have died (adjusted hazard ratio, 4.44; 95% confidence interval [CI], 1.24-15.87); for morbidity outcomes, a 6-point difference in the Physical Component Summary score of the 36-item Short Form Questionnaire (95% CI, 4.2-8.7), a 7-point difference for the Mental Component Summary score (95% CI, 4.5-9.5), a 13-point difference in Modified Barthel Index scores (95% CI, 6.8-18.3), and a 6-point difference in Self-Rating Anxiety Scale scores (95% CI, 4.4-8.3) was reported in favor of the intervention groups. CONCLUSIONS: For the first time, we have shown that commencing rehabilitation within 48 hours of intracerebral hemorrhage improves survival and functional outcomes at 6 months after stroke in hospitalized patients in China. CLINICAL TRIAL REGISTRATION URL: http://www.chictr.org/en. Unique identifier: ChiCTR-TRC-13004039.


Assuntos
Hemorragia Cerebral/complicações , Reabilitação do Acidente Vascular Cerebral , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modalidades de Fisioterapia , Qualidade de Vida , Recuperação de Função Fisiológica , Acidente Vascular Cerebral/etiologia , Fatores de Tempo , Resultado do Tratamento
5.
Zhejiang Da Xue Xue Bao Yi Xue Ban ; 40(1): 44-50, 2011 01.
Artigo em Chinês | MEDLINE | ID: mdl-21319373

RESUMO

OBJECTIVE: To investigate the preparation method of polystyrene core-poly (acrylamide-acrylic acid) shell fluorescent microspheres. METHODS: The polystyrene core-poly (acrylamide-acrylic acid) shell (P-(St-co-AAM)) fluorescent microspheres were prepared using fluorescent microspheres as the core and acrylamide/acrylic as polymerization monomer. Reaction conditions affecting the morphology of core-shell structure including feeding mode, initiator, cross linker, pH, concentration and swelling were studied. RESULT: Fluorescent microscopy showed that the relatively uniform particle sizes were distributed in a range of 7-8 µm. Fourier transform infra-red spectroscopy (FT-IR) proved the existence of poly (acrylamide-acrylic acid) shell and amide group on the surface. The optimal conditions for seeding polymerization: azobisisobutyronitrile was used as the initiator in the absence of cross linker, after a 40 h swelling treatment by using alcohol with the appropriate reaction temperature (70 degree), reaction time (3 h) and pH(6-7). The average dispersion and stability were 25.14 % and 90.21%, respectively. The fluorescein release percentage was kept stable at approximately 30% after 40 h. CONCLUSION: The fluorescent microspheres prepared by this method have core-shell structure and satisfactory fluorescence properties with good dispersion and stability.


Assuntos
Resinas Acrílicas/química , Fluoresceína/química , Microesferas , Poliestirenos/química , Acrilatos/química , Polimerização
6.
J Healthc Eng ; 2021: 4963361, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34367537

RESUMO

Taking into account the current feature extraction speed and recognition effect of intelligent diagnosis of menopausal women's health care behavior, this paper proposes to use a cross-layer convolutional neural network to extract behavior features autonomously and use support vector machine multiclass behavior classifier to classify behavior. Compared with the feature images extracted by traditional methods, the behavioral features extracted in this paper are related to the individual menopausal women and have better semantic information, and the feature description ability in the time domain and the space domain has been enhanced. Through Matlab software, using the database established in this paper to compare its feature extraction time, test classification time, and final recognition accuracy with ordinary convolutional neural networks, it is concluded that the cross-layer CNN-SVM model can ensure the speed of feature extraction. It proves that the method in this paper can be applied to the behavioral intelligent diagnosis system for intelligently nursing menopausal women and has good practical value. This paper designs a home care bed intelligent monitoring system, which can automatically detect the posture of the care bed, and not only can change the posture of the bed under the control of personnel, but also can automatically complete the posture conversion according to the setting. At the same time, the system has the function of monitoring the physical condition of the person being cared for and can detect the heart rate, blood oxygen, and other physiological indicators of the bedridden person. In addition, the system can also provide a remote diagnosis function, allowing nursing staff to remotely view the current state of the nursing bed and the physical condition of the person. After testing, the system works stably, improves the automation and safety of the nursing bed control, and enriches the functions of the nursing bed.


Assuntos
Redes Neurais de Computação , Diagnóstico de Enfermagem , Computadores , Feminino , Humanos , Menopausa , Saúde da Mulher
7.
Cell Signal ; 62: 109328, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31145996

RESUMO

Accumulating evidence indicates that long non-coding RNAs (lncRNAs) play an important role in autism. Herein, we delineated the functions of LOC101927196 and its potential mitigation effect on a rat model of autism. We retrieved various bioinformatics databases and websites to screen differentially expressed lncRNAs associated with autism. Next, a rat model of autism was established with the neuron cells extracted for transfection of different plasmids. The regulatory effect of LOC101927196 on neuron cell proliferation, apoptosis as well as oxidative stress was also investigated. Firstly, microarray dataset GSE18123 revealed that LOC101927196 was poorly expressed in a rat model of autism. Poor development and growth and oxidative stress disorder were also observed in a rat model of autism. In addition, LOC101927196 targeting FZD3 played a vital role in a rat model of autism through the Wnt signaling pathway. Furthermore, we further demonstrated that over-expressed LOC101927196 blocked neuron cell proliferation and reduced oxidative stress levels, while promoting apoptosis by suppressing the activation of the Wnt signaling pathway. Our findings illustrate that up-regulated LOC101927196 attenuated oxidative stress disorder in a rat model of autism through suppressing the activation of Wnt signaling pathway by targeting FZD3.


Assuntos
Transtorno Autístico/genética , Receptores Frizzled/genética , Estresse Oxidativo/genética , RNA Longo não Codificante/genética , Animais , Apoptose/genética , Transtorno Autístico/patologia , Proliferação de Células/genética , Modelos Animais de Doenças , Regulação da Expressão Gênica , Humanos , Neurônios/metabolismo , Neurônios/patologia , Ratos , Via de Sinalização Wnt/genética , beta Catenina
8.
Biosci Rep ; 37(6)2017 Dec 22.
Artigo em Inglês | MEDLINE | ID: mdl-29074560

RESUMO

The network meta-analysis was conducted to compare the short-term efficacy of different single-drug targeted therapies in the treatment of renal cell carcinoma (RCC). We initially searched databases for randomized controlled trials (RCTs) on different single-drug targeted therapies in treating RCC. The meta-analysis combined the direct and indirect evidence to calculate the pooled odds ratios (OR) and draw surface under the cumulative ranking curves (SUCRA). A total of 14 eligible RCTs were ultimately selected. The partial response (PR) of Cabozantinib in the treatment of RCC was better than Sunitinib (OR = 2.7, 95%CI = 1.0-7.8), Everolimus (OR = 8.1, 95%CI = 3.1-25.0), and Temsirolimus (OR = 4.8, 95%CI = 1.0-31.0); the overall response rate (ORR) of Cabozantinib was better than Sorafenib, Sunitinib, Everolimus, and Temsirolimus (OR = 5.5, 95%CI = 1.1-27.0; OR = 2.6, 95%CI = 1.1-6.6; OR = 8.3, 95%CI = 3.5-20.0; OR = 5.7, 95%CI = 1.3-28.0 respectively). In addition, as for complete response (CR), PR, stable disease (SD), progressive disease (PD), ORR, and disease control rate (DCR), Cabozantinib had the best short-term efficacy among nine single-drug targeted therapies in the treatment of RCC (CR: 50.3%; PR: 93.6%; SD: 75.1%; PD: 68.0%; ORR: 95.5%; DCR: 73.2%); while Everolimus had the worst short-term efficacy (CR: 33.6%; PR: 22.3%; SD: 78.0%; PD: 35.9%; ORR: 22.9%; DCR: 19.9%). Our network meta-analysis indicated that Cabozantinib might have better short-term efficacy than other regimens in the treatment of RCC, while Everolimus might have poor short-term efficacy.


Assuntos
Antineoplásicos/uso terapêutico , Carcinoma de Células Renais/tratamento farmacológico , Terapia de Alvo Molecular , Resultado do Tratamento , Anilidas/uso terapêutico , Carcinoma de Células Renais/epidemiologia , Carcinoma de Células Renais/patologia , Everolimo/uso terapêutico , Humanos , Indóis/uso terapêutico , Metanálise em Rede , Niacinamida/análogos & derivados , Niacinamida/uso terapêutico , Compostos de Fenilureia/uso terapêutico , Piridinas/uso terapêutico , Pirróis/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto , Sirolimo/análogos & derivados , Sirolimo/uso terapêutico , Sorafenibe , Sunitinibe
9.
Biomed Pharmacother ; 89: 632-641, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28262616

RESUMO

Pulmonary hypertension (PH) is serious, fatal disease which is promoted by oxidative stress. Aloperine have antioxidation effects, which effects on pulmonary arteries remain unclear. Therefore, this study is designed to investigate whether aloperine has protective effects on PH induced by monocrotaline and whether these effects are associated with oxidative stress. PH was induced by monocrotaline (60mg/kg), and subsequently oral administration of aloperine (25, 50, 100mg/kg/day). At the end of the experiment, hemodynamic, pathomorphologic, electrocardiographic and echocardiographic data from the rats were obtained. At same time, oxidative stress biomarkers (superoxide dismutase, malonyldialdehyde, catalase, glutathione peroxidase, total antioxidant capacity) and the protein expression of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (NOX)-2, NOX-4 in the lung of rat has been detected. The result shows that aloperine treatment showed significantly improvement in hemodynamic, pathomorphologic, electrocardiographic and echocardiographic data. Moreover, aloperine treatment can alleviate the changes of oxidative stress biomarkers and suppress the expression levels of NOX-2, NOX-4. In summary, this study indicates that aloperine have protective effects on monocrotaline-induced PH. And these effects may be related to inhibit oxidative stress.


Assuntos
Hipertensão Pulmonar/induzido quimicamente , Hipertensão Pulmonar/prevenção & controle , Monocrotalina , Piperidinas/farmacologia , Substâncias Protetoras/farmacologia , Animais , Antioxidantes/farmacologia , Biomarcadores/análise , Relação Dose-Resposta a Droga , Ecocardiografia , Eletrocardiografia , Hipertensão Pulmonar/diagnóstico por imagem , Hipertrofia Ventricular Direita/diagnóstico por imagem , Hipertrofia Ventricular Direita/prevenção & controle , Masculino , Estresse Oxidativo/efeitos dos fármacos , Artéria Pulmonar/metabolismo , Artéria Pulmonar/patologia , Circulação Pulmonar/efeitos dos fármacos , Quinolizidinas , Ratos , Ratos Sprague-Dawley
10.
Biomed Pharmacother ; 95: 1161-1168, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28926926

RESUMO

Pulmonary hypertension (PH) is fatal disease which closely involves Rho A/ Rho kinsase (ROCK) pathway. Aloperine is a main active alkaloid extracted from Sophora alopecuroides, which is a traditional Chinese herbal medicine that has been used widely. However, the effects of this alkaloid on pulmonary hypertension and its mechanisms remain unclear. Therefore, this study is designed to investigate whether aloperine has protective effects on PH induced by monocrotaline, whether these effects may be related to regulation of RhoA/ROCK pathway in rats. Pulmonary hypertension was induced by monocrotaline (60mg/kg), and subsequently oral administration of aloperine (25, 50, 100mg/kg/day) for 21 days. At the end of the experiment, rats were underwent hemodynamic and morphologic assessments. At same time, the expression of Rho A, ROCK1, ROCK2, as well as activities of ROCK in the lung of rat has been detected. Afterwards, the expression of p27kip1, Bax, Bcl-2, which was the downstream proliferation and apoptosis factors of ROCK, were tested. The result indicted that aloperine treatment showed significantly improvement in hemodynamic and pathomorphologic data. Moreover, the reduction in expression of Rho A, ROCK1, ROCK2, and suppression in activities of ROCK were found in rat lungs after aloperine treatment. Furthermore, aloperine also alleviated the MCT-induced changes of p27kip1, Bax and Bcl-2. In summary, this study indicates that aloperine have protective effects on monocrotaline-induced PH. And these effects may be partially related to RhoA/ROCK pathway. Thus, aloperine could be considered a possible therapeutic strategy for PH.


Assuntos
Hipertensão Pulmonar/induzido quimicamente , Hipertensão Pulmonar/tratamento farmacológico , Piperidinas/uso terapêutico , Substâncias Protetoras/uso terapêutico , Quinases Associadas a rho/metabolismo , Proteína rhoA de Ligação ao GTP/metabolismo , Animais , Cardiomegalia/complicações , Cardiomegalia/tratamento farmacológico , Cardiomegalia/fisiopatologia , Inibidor de Quinase Dependente de Ciclina p27/metabolismo , Eletrocardiografia , Hemodinâmica/efeitos dos fármacos , Hipertensão Pulmonar/diagnóstico por imagem , Hipertensão Pulmonar/fisiopatologia , Pulmão/efeitos dos fármacos , Pulmão/patologia , Pulmão/fisiopatologia , Masculino , Monocrotalina , Piperidinas/farmacologia , Antígeno Nuclear de Célula em Proliferação/metabolismo , Substâncias Protetoras/farmacologia , Artéria Pulmonar/efeitos dos fármacos , Artéria Pulmonar/patologia , Artéria Pulmonar/fisiopatologia , Quinolizidinas , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Ratos Sprague-Dawley , Remodelação Vascular/efeitos dos fármacos , Proteína X Associada a bcl-2/metabolismo , Quinases Associadas a rho/genética , Proteína rhoA de Ligação ao GTP/genética
11.
Neurochem Int ; 89: 17-27, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26120022

RESUMO

Oxymatrine (OMT), an active constituent of Chinese herb Sophora flavescens Ait, has been proved to possess anti-tumor, anti-oxidant, anti-inflammatory, and anti-apoptotic activities. Previous study has demonstrated that OMT had protective roles on multiple in vitro and in vivo brain injury models including regulation of apoptosis-related proteins caspase-3, Bax and Bcl-2. In this study, we investigated whether this protective effect could apply to neonatal hypoxic-ischemic brain damage. Seven-day-old Sprague-Dawley rats were treated with the left carotid artery ligation followed by exposure to 8% oxygen (balanced with nitrogen) for 2.5 h at 37 °C. In sham group rats, neither ligation nor hypoxia was performed. After two successive days intraperitoneal injection with OMT (30, 60 and 120 mg/kg), Nimodipine (1 mg/kg), and saline, brain infarct volume was estimated, histomorphology changes were performed by hematoxylin-eosin (HE) staining as well as electron microscopy. In addition, the activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), and total antioxidant capacity (T-AOC), as well as production of malondialdehyde (MDA) were assayed in ipsilateral hemisphere homogenates to evaluate the redox status after hypoxic-ischemic. Expression of apoptosis-related proteins Caspase-3, Bax and Bcl-2 in brain were analyzed by western-blot analysis and immunofluorescence. Administration of OMT significantly decreased brain infarct volume and the percentage of injured cells, and ameliorated histopathology and morphological injury as well. Furthermore, OMT obviously increased the activities of SOD, GSH-Px, CAT and T-AOC, and decreased MDA content. Western-blot analysis showed a marked decrease in Caspase-3 expression and increase in the ratio of Bcl-2/Bax after OMT (120 mg/kg) post-treatment as compared with hypoxic-ischemic group. These results suggest that OMT exerts a neuroprotective effect against hypoxic-ischemic brain damage in neonatal rats, which is likely to be mediated through increasing anti-oxidant enzyme activities and inhibiting cell death.


Assuntos
Alcaloides/uso terapêutico , Antioxidantes/metabolismo , Hipóxia-Isquemia Encefálica/tratamento farmacológico , Hipóxia-Isquemia Encefálica/metabolismo , Quinolizinas/uso terapêutico , Sophora , Alcaloides/farmacologia , Animais , Animais Recém-Nascidos , Morte Celular/efeitos dos fármacos , Morte Celular/fisiologia , Feminino , Masculino , Quinolizinas/farmacologia , Ratos , Ratos Sprague-Dawley
12.
Mol Med Rep ; 12(4): 6133-9, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26252250

RESUMO

Microglia­mediated neuroinflammation is key in the pathogenesis of Alzheimer's disease (AD). Several studies have suggested that NADPH oxidase contributes to microglia­mediated neuroinflammation. Resveratrol, which is a natural polyphenolic compound, exerts neuroprotective effects in AD due to its anti­inflammatory properties. The present study aimed to investigate the effects of resveratrol on the activation of oligomeric amyloid ß (oAß)­induced BV­2 microglia, and to determine the role of NADPH oxidase in these effects. Microglial proliferation was measured by high­content screening cell counting and using a bromodeoxyuridine incorporation assay. In addition, the levels of reactive oxygen species (ROS), nitric oxide (NO), tumor necrosis factor (TNF)­α and interleukin (IL)­1ß were assessed. The results of the present study demonstrated that resveratrol inhibited the proliferation of oAß­induced microglia and the production of pro­inflammatory factors, including ROS, NO, TNF­α and IL­1ß. Subsequent mechanistic investigations demonstrated that resveratrol inhibited the oAß­induced mRNA and protein expression levels of p47phox and gp91phox. These results suggested that NADPH oxidase may be a potential target for AD treatment, and resveratrol may be a valuable natural product possessing therapeutic potential against AD.


Assuntos
Peptídeos beta-Amiloides/metabolismo , Microglia/efeitos dos fármacos , NADPH Oxidases/metabolismo , Fármacos Neuroprotetores/farmacologia , Estilbenos/farmacologia , Peptídeos beta-Amiloides/antagonistas & inibidores , Animais , Anti-Inflamatórios/farmacologia , Proliferação de Células/efeitos dos fármacos , Células Cultivadas , Interleucina-1beta/metabolismo , Glicoproteínas de Membrana/metabolismo , Camundongos , Microglia/citologia , NADPH Oxidase 2 , Óxido Nítrico/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Resveratrol , Fator de Necrose Tumoral alfa/metabolismo
14.
Nurse Educ Today ; 33(8): 834-7, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22405342

RESUMO

OBJECTIVES: To confirm the effect of occupational safety training and education programs (OSTEP) on needlestick injuries (NSIs) among nursing students in China. METHODS: Compare the rates and the nature of NSIs before and after OSTEP among the nursing students in China. Firstly, questionnaires were delivered to 248 randomly selected nursing students from seven training hospitals to obtain basic information concerning relevant occupational NSIs. Then regular intervention measures through OSTEP on 246 nursing students had been introduced for four years. And the resultant information concerning relevant occupational NSIs was obtained afterwards. Finally, the data analysis was performed using SPSS software, version 11.5. RESULTS: The rate of NSIs among these nursing students was relatively high before the OSTEP in China (average, 4.65 events/nurse). However, it decreased rapidly to 0.16 events/nurse average after the OSTEP. Occupational safety awareness and behavior in handling NSIs was improved in China. There was a significant difference in the results of Chi-square value (P<0.005). CONCLUSIONS: NSIs are common in nursing students in China. The OSTEP can reduce NSIs and change practical behavior markedly among nursing students in China. We should perform OSTEP on nurse students before and during the clinical practice. We must also provide effective preventive measures to reduce this kind of problem in future.


Assuntos
Capacitação em Serviço/organização & administração , Ferimentos Penetrantes Produzidos por Agulha/prevenção & controle , Saúde Ocupacional , Estudantes de Enfermagem , China , Humanos
15.
Nurse Educ Today ; 30(5): 435-7, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19889481

RESUMO

OBJECTIVES: To describe and characterize the rates and the nature of needlestick injuries among nursing students in China. METHODS: A questionnaire was delivered to 248 randomly selected nursing students from seven training hospitals to obtain information relevant occupational needlestick injuries. RESULTS: A total of 1144 incidents of needlestick injuries were reported among the 246 nurses during the time period of internship. The overall rate of needlestick injuries among these nurses was 100%, according to this survey. Insufficient awareness of occupational safety and limited work experience with handling needlestick injuries in these nurse students were significantly reported. In addition, when stratified by departments, the highest rate of needlestick injuries was seen in the surgery department. The occurrence of needlestick injuries is significantly related to clinical practice behaviors. CONCLUSIONS: Needlestick injuries are commonly reported in nursing students in China. Enhanced awareness of occupational safety in nursing students is expected to reduce the risk of needlestick injuries.


Assuntos
Ferimentos Penetrantes Produzidos por Agulha/epidemiologia , Estudantes de Enfermagem/estatística & dados numéricos , China/epidemiologia , Feminino , Inquéritos Epidemiológicos , Humanos , Ferimentos Penetrantes Produzidos por Agulha/prevenção & controle , Exposição Ocupacional/efeitos adversos , Exposição Ocupacional/estatística & dados numéricos , Saúde Ocupacional/estatística & dados numéricos , Fatores de Risco , Inquéritos e Questionários , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa