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1.
Phytother Res ; 38(1): 411-453, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38051175

RESUMO

Ischemic stroke (IS) remains one of the leading causes of death and disability in humans. Unfortunately, none of the treatments effectively provide functional benefits to patients with IS, although many do so by targeting different aspects of the ischemic cascade response. The advantages of traditional Chinese medicine (TCM) in preventing and treating IS are obvious in terms of early treatment and global coordination. The efficacy of TCM and its bioactive constituents has been scientifically proven over the past decades. Based on clinical trials, this article provides a review of commonly used TCM patent medicines and herbal decoctions indicated for IS. In addition, this paper also reviews the mechanisms of bioactive constituents in TCM for the treatment of IS in recent years, both domestically and internationally. A comprehensive review of preclinical and clinical studies will hopefully provide new ideas to address the threat of IS.


Assuntos
Medicamentos de Ervas Chinesas , AVC Isquêmico , Humanos , Medicina Tradicional Chinesa , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/uso terapêutico , AVC Isquêmico/tratamento farmacológico
2.
J Ethnopharmacol ; 319(Pt 3): 117201, 2024 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-37739102

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Bushen Tianjing Recipe (BTR) is a tonic-kidney formula of Traditional Chinese Medicine (TCM) with good therapeutic effects in clinical settings. It was mainly applied to inhibit the decrease of ovarian reserve function in patients. However, the anti-apoptosis mechanism of BTR remains unknown. AIM OF THE STUDY: The formula of BTR is composed of prepared rehmannia root, debark peony root, carapax testudinis and asiatic cornelian cherry fruit. All four components contain the essences of nourishing yin and tonic-kidney. In the theory of TCM, the kidneys store the essence and are primarily responsible for reproduction and development. Hence, we speculated that BTR had some effect on women's reproductive system. In our research, rat serum contains BTR resolved into culture medium for incubation with miR-23a-induced KGN cells to test and determine our hypothesis. MATERIALS AND METHODS: BTR was prepared by the traditional decoction method to collect concentrated liquids for oral administration to rats (15.00 g/kg) for 14 days. The group with miR-23a-induced KGN cells was selected as the positive control, while the mimic one was the control. Pro-apoptosis and anti-apoptosis biomarkers were detected and analyzed by western blot together with upstream transcription factors and intracellular apoptotic signal pathways. RESULTS: The medium- and high-concentration of BRT greatly reduced the apoptosis of miR-23a-induced KGN cells both in mitochondria and cytoplasm. It showed the up-regulation of SIRT1 and SIRT3, the down-regulation of pro-apoptosis factor Bax and apoptotic-related proteins Caspase 3, 8, 9, and the reduction of phosphorylation of ERK1/2 and NF-κB. however, there was no consistency in the group with a low concentration of BTR, compared with those of other groups. CONCLUSION: Our research verified that BTR had a positive effect on women's reproductive system under medium or high concentration, illuminated the intrinsic mechanism at molecular levels, and convinced its potential application values in clinical settings.


Assuntos
MicroRNAs , Sirtuínas , Humanos , Feminino , Animais , Ratos , Apoptose , Células da Granulosa , Cafeína , MicroRNAs/genética
3.
J Neural Eng ; 19(6)2022 12 16.
Artigo em Inglês | MEDLINE | ID: mdl-36541542

RESUMO

Objective.The brain-computer interface (BCI) system based on sensorimotor rhythm can convert the human spirit into instructions for machine control, and it is a new human-computer interaction system with broad applications. However, the spatial resolution of scalp electroencephalogram (EEG) is limited due to the presence of volume conduction effects. Therefore, it is very meaningful to explore intracranial activities in a noninvasive way and improve the spatial resolution of EEG. Meanwhile, low-delay decoding is an essential factor for the development of a real-time BCI system.Approach.In this paper, EEG conduction is modeled by using public head anatomical templates, and cortical EEG is obtained using dynamic parameter statistical mapping. To solve the problem of a large amount of computation caused by the increase in the number of channels, the filter bank common spatial pattern method is used to obtain a spatial filter kernel, which reduces the computational cost of feature extraction to a linear level. And the feature classification and selection of important features are completed using a neural network containing band-spatial-time domain self-attention mechanisms.Main results.The results show that the method proposed in this paper achieves high accuracy for the four types of motor imagery EEG classification tasks, with fairly low latency and high physiological interpretability.Significance.The proposed decoding framework facilitates the realization of low-latency human-computer interaction systems.


Assuntos
Interfaces Cérebro-Computador , Humanos , Imaginação/fisiologia , Processamento de Sinais Assistido por Computador , Eletroencefalografia/métodos , Imagens, Psicoterapia , Algoritmos
4.
Annu Int Conf IEEE Eng Med Biol Soc ; 2022: 3586-3589, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-36083918

RESUMO

Brain-computer interface (BCI) system based on sensorimotor rhythm (SMR) is a more natural brain-computer interaction system. In this paper, we propose a new multi-task motor imagery EEG (MI-EEG) classification framework. Unlike traditional EEG decoding algorithms, we perform the decoding task in the source domain rather than the sensor domain. In the proposed algorithm, we first build a conduction model of the signal using the public ICBM152 head model and the boundary element method (BEM). The sensor domain EEG was then mapped to the selected cortex region using standardized low-resolution electromagnetic tomography (sLORETA) technology, which benefit to address volume conduction effects problem. Finally, the source domain features are extracted and classified by combining FBCSP and simple LDA. The results show that the classification-decoding algorithm performed in the source domain can well solve the classification task of MI-EEG. In addition, we found that the source imaging method can significantly increase the number of available EEG channels, which can be expanded at least double. The preliminary results of this study encourage the implementation of EEG decoding algorithms in the source domain. Clinical Relevance- This confirms that better results can be obtained by performing MI-EEG decoding in the source domain than in the sensor domain.


Assuntos
Interfaces Cérebro-Computador , Imaginação , Algoritmos , Eletroencefalografia/métodos , Imagens, Psicoterapia
5.
Phytomedicine ; 102: 154146, 2022 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-35594639

RESUMO

BACKGROUND: As a traditional Chinese medicine, Lonicerae japonicae flos (LJF) and its main component chlorogenic acid (CGA) have anti-oxidant, anti-bacterial and anti-tumor effects. However, there is no research on the potential of LJF for vascular protection in radiotherapy. PURPOSE: To elucidate the potential and possible mechanisms of the LJF extract and CGA in alleviating endothelial dysfunction caused by abdominal radiotherapy. METHODS: LJF was extracted with water and the CGA content was analyzed by HPLC. Male Sprague-Dawley rats received abdominal radiotherapy for 21 days. Seven days after irradiation, Laser Doppler and ex vivo vascular tension experiments were performed. Nitric oxide (NO), superoxide anion levels and tetrahydrobiopterin (BH4) content were detected. Western blot, flow cytometry and molecular docking were used. RESULTS: In the radiotherapy group, the mesenteric arterial blood perfusion, NO, and superoxide anion levels were significantly reduced; rats treated with the LJF extract or CGA showed a certain extent of recovery of these indicators. Vascular tension experiments showed that CGA and the LJF extract improved the vasodilation of mesenteric arteries. Cell experiments demonstrated that CGA increased the NO content and reduce superoxide anion production and cell apoptosis. The expression levels of GTPCH1/BH4/eNOS signaling pathway were significantly increased due to the use of the LJF extract or CGA in vivo and in vitro. CONCLUSIONS: Our study demonstrated for the first time that LJF and its main component, CGA could prevent abdominal radiotherapy-induced vascular endothelial dysfunction via GTPCH1/BH4/eNOS pathway. LJF could be a potential therapeutic herbal agent.


Assuntos
Lonicera , Animais , Ácido Clorogênico/farmacologia , Masculino , Artérias Mesentéricas , Simulação de Acoplamento Molecular , Extratos Vegetais/farmacologia , Ratos , Ratos Sprague-Dawley , Superóxidos
6.
Environ Sci Pollut Res Int ; 29(15): 21826-21838, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34767177

RESUMO

An analytical method of simultaneous detection of ten insecticide residues in honey and pollen was established. The samples were purified with QuEChERS approach using new adsorbents and analyzed with UPLC-MS/MS. The results showed that both of graphene and carbon nanotubes were highly efficient adsorbents for the dSPE clean up to eliminate coextractives in the samples, and graphene was superior to carbon nanotubes for the detection of pesticide residues in honey and pollen samples. The proposed method was used to detect pesticide residues in 25 honey samples and 30 pollen samples which were randomly collected from more than ten provinces in China. All honey samples contain 1-27 µg/kg of chlorpyrifos residues. Only 4% of the honey samples were detected containing acetamiprid and imidacloprid, while the other seven pesticides were not detected. Chlorpyrifos residues were found in all pollen samples (5-66 µg/kg), among which twenty percent exceeded the maximum residue limits (MRLs, 50 µg/kg, European Commission Regulation). Most of the pollen samples containing pesticide concentrations higher than MRLs were collected from rape, followed by lotus, camellia, and rose. Besides, 36.7% and 33.3% of the pollen samples had imidacloprid and flupyradifurone higher than 5 µg/kg. A total of 26.7% pollen samples were detected containing bifenthrin, while none of the other six pesticides were detected in pollen samples.


Assuntos
Grafite , Mel , Inseticidas , Nanotubos de Carbono , Resíduos de Praguicidas , Adsorção , Cromatografia Líquida de Alta Pressão , Cromatografia Líquida , Grafite/análise , Mel/análise , Inseticidas/análise , Nanotubos de Carbono/análise , Resíduos de Praguicidas/análise , Pólen/química , Espectrometria de Massas em Tandem
7.
J Evid Based Med ; 14(1): 65-74, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33615709

RESUMO

It has been over 20 years since the introduction of evidence-based medicine (EBM) into the research of traditional Chinese medicine (TCM). The development of evidence-based TCM research has profoundly influenced the process of clinical research and decision-making, impelling researchers to pay attention to raise evidence quality, accumulate data, and explore appropriate evaluation methods adaptive to TCM original theories and knowledge. In this paper, the authors aim to summarize and review the existing work and seek promising research interests in this field, expecting to inspire more thoughts leading to breakthroughs in the near future.


Assuntos
Medicamentos de Ervas Chinesas , Medicina Tradicional Chinesa , Medicina Baseada em Evidências
8.
Br J Nutr ; 125(4): 408-419, 2021 02 28.
Artigo em Inglês | MEDLINE | ID: mdl-32713354

RESUMO

A 6-week growth trial was conducted to evaluate the influences of dietary valine (Val) levels on growth, protein utilisation, immunity, antioxidant status and gut micromorphology of juvenile hybrid groupers. Seven isoenergetic, isoproteic and isolipidic diets were formulated to contain graded Val levels (1·21, 1·32, 1·45, 1·58, 1·69, 1·82 and 1·94 %, DM basis). Each experimental diet was hand-fed to triplicate groups of twelve hybrid grouper juveniles. Results showed that weight gain percentage (WG%), protein productive value, protein efficiency ratio, and feed efficiency were increased as dietary Val level increased, reaching a peak value at 1·58 % dietary Val. The quadratic regression analysis of WG% against dietary Val levels indicated that the optimum dietary Val requirement for hybrid groupers was estimated to be 1·56 %. Gut micromorphology and expression of growth hormone in pituitary, insulin-like growth factor 1, target of rapamycin and S6 kinase 1 in liver were significantly affected by dietary Val levels. In serum, fish fed 1·58 % dietary Val had higher superoxide dismutase, catalase, lysozyme activities and IgM concentrations than fish fed other dietary Val levels. Fish fed 1·58 % dietary Val had higher expression of NF-E2-related factor 2 in head kidney than fish fed other dietary Val levels. Generally, the optimum dietary Val requirement for maximal growth of hybrid groupers was estimated to be 1·56 % of DM, corresponding to 3·16 % of dietary protein, and dietary Val levels affected growth, protein utilisation, immunity and antioxidant status in hybrid groupers.


Assuntos
Ração Animal/análise , Antioxidantes/metabolismo , Bass/crescimento & desenvolvimento , Dieta/veterinária , Proteínas Alimentares/metabolismo , Valina/administração & dosagem , Fenômenos Fisiológicos da Nutrição Animal , Animais , Bass/imunologia , Bass/metabolismo , Suplementos Nutricionais , Hibridização Genética
9.
Microb Pathog ; 150: 104619, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33212196

RESUMO

Bimetallic nanoparticles act as a multi-functional platform because of extraordinary properties that are most capable materials for biological applications. The present study reports the improvement of Au@ Ag-core shell nanoparticles filled in as seeds for ceaseless affidavit of silver molecules on its chitosan surface. The FT-IR spectrum techniques used to identify stretching vibrations of prepared NPs. The X-ray diffraction (XRD) outcomes show the medium crystalline shape and size of the Ag@Au loaded chitosan was around at 30 nm. The morphological structure of nanoparticles (NPs) was proved by Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM). The Ag@Au contained chitosan results displayed the most elevated zone of hindrance 24 mm and lowest value 0.2 µg/mL of MIC against E. coli and treated with ciprofloxacin. The excellent antimicrobial results proven that the Ag@Au loaded chitosan can enhance the antibacterial activity. The combined Ag@Au core-shell NPs were intricately performed for cytotoxicity against human bosom malignant growth (MCF7) and cervical (HeLa) anticancer cell lines. The Ag@Au NPs may have incredible potential as viable antibacterial operators for pathogen control in clinics and nourishment preparing.


Assuntos
Anti-Infecciosos , Infecções por Escherichia coli , Nanopartículas Metálicas , Antibacterianos/farmacologia , Anti-Infecciosos/farmacologia , Ciprofloxacina/farmacologia , Escherichia coli , Infecções por Escherichia coli/tratamento farmacológico , Ouro , Humanos , Prata/farmacologia , Espectroscopia de Infravermelho com Transformada de Fourier
10.
Neuroreport ; 31(12): 857-864, 2020 08 12.
Artigo em Inglês | MEDLINE | ID: mdl-32453025

RESUMO

Chronic sleep loss caused lots of health problems, also including cognition impairment. Tea is one of the most popular drinks when people stay up late. Nevertheless, the effects of tea on sleep deprivation-induced cognition impairment are still unclear. In the present study, we found 24-h sleep deprivation (S-DEP) increased membrane α-amino-3-hydroxy-5-methyl-4-isoxa-zolep-propionate (AMPA) receptor level through a tumor necrosis factor α (TNFα)-dependent pathway in hippocampi. Blocking elevated TNFα level can protect S-DEP mice from impaired learning ability according to behavioral test. Tea polyphenols, major active compounds in green tea, suppressed TNFα production through downregulating TNFα converting enzyme (TACE) level. Meanwhile, tea polyphenols treatment could ameliorate recognition impairment and anxiety-like behaviors in S-DEP mice. The aforementioned results demonstrate cognition protective effects of tea polyphenols in S-DEP mice model, which provide a theoretical basis for the treatments of S-DEP-induced cognition impairment by targeting the TACE/TNFα/AMPA pathway.


Assuntos
Memória/efeitos dos fármacos , Polifenóis/farmacologia , Receptores de AMPA/efeitos dos fármacos , Privação do Sono/tratamento farmacológico , Chá , Animais , Disfunção Cognitiva/tratamento farmacológico , Disfunção Cognitiva/metabolismo , Modelos Animais de Doenças , Hipocampo/efeitos dos fármacos , Hipocampo/metabolismo , Camundongos , Substâncias Protetoras/farmacologia , Receptores de AMPA/metabolismo , Reconhecimento Psicológico/efeitos dos fármacos , Privação do Sono/metabolismo , Fator de Necrose Tumoral alfa/metabolismo
11.
Cancer Lett ; 454: 14-25, 2019 07 10.
Artigo em Inglês | MEDLINE | ID: mdl-30910587

RESUMO

Patients receiving sorafenib treatment for hepatocellular carcinoma (HCC) experience different treatment efficacy. Personalized sorafenib treatment should be achieved through the identification of predictors of therapeutic response. In the current study, we found that high UGT1A9 expression indicated better prognosis for HCC patients treated with sorafenib after surgery. In silico analysis predicted microRNA-200a/-183 as potential regulators of the UGT1A gene family via binding to the shared UGT1A9 3'-UTR. A significant inverse correlation between microRNA-200a/-183 and UGT1A9 mRNA level was observed in a panel of HCC specimens. Direct binding was further demonstrated by luciferase reporter gene vector carrying wild-type or binding site truncated UGT1A9 3'-UTR. MicroRNA-200a/-183 downregulated UGT1A9 expression in a dose-dependent manner and significantly reduced sorafenib ß-D-glucuronide formation in HCC cells. These data indicated that UGT1A9, under epigenetic regulation of microRNA-200a/-183, could predict patients who might benefit from adjuvant sorafenib treatment after surgery.


Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Glucuronosiltransferase/genética , Neoplasias Hepáticas/tratamento farmacológico , MicroRNAs/genética , Sorafenibe/farmacologia , Regiões 3' não Traduzidas , Animais , Antineoplásicos/farmacologia , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/metabolismo , Epigênese Genética , Glucuronosiltransferase/biossíntese , Glucuronosiltransferase/metabolismo , Células HEK293 , Humanos , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/metabolismo , Masculino , Camundongos , Camundongos Nus , MicroRNAs/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , UDP-Glucuronosiltransferase 1A , Ensaios Antitumorais Modelo de Xenoenxerto
12.
Pest Manag Sci ; 75(5): 1464-1472, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30450808

RESUMO

BACKGROUND: The black cutworm Agrotis ipsilon is the most destructive early season insect pest of corn. In this study, the control efficiency of cyantraniliprole seed treatment against A. ipsilon was evaluated, and the residual concentrations of cyantraniliprole and its metabolite J9Z38 in the stalks of corn seedlings and soil were investigated. RESULTS: Plant pot experiments showed that A. ipsilon larval mortality was greater than 92% and that the percentage of corn seedlings damaged by A. ipsilon was less than 24% when corn seeds were treated with cyantraniliprole at 2 and 4 g AI kg-1 seed. Cyantraniliprole seed treatment at a dosage of 2 g AI kg-1 seed significantly reduced A. ipsilon infestation compared to chlorantraniliprole and clothianidin seed treatments in corn fields. Cyantraniliprole seed treatment resulted in more persistent control efficiency of A. ipsilon in spring than in summer. Cyantraniliprole and J9Z38 residues in corn stalks and soil degraded more slowly in the spring than in the summer. CONCLUSION: Cyantraniliprole used as a seed treatment can protect corn plants from A. ipsilon infestations throughout the seedling stage. The high biological activity of cyantraniliprole was consistent with the residue levels of cyantraniliprole in the corn stalks and soil. © 2018 Society of Chemical Industry.


Assuntos
Lepidópteros , Resíduos de Praguicidas/análise , Resíduos de Praguicidas/metabolismo , Pirazóis/metabolismo , Sementes/metabolismo , Solo/química , Zea mays/metabolismo , ortoaminobenzoatos/metabolismo , Animais
13.
Medicine (Baltimore) ; 97(34): e11996, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30142838

RESUMO

BACKGROUND: 1-Deoxynojirimycin (DNJ), a component of mulberry leaf extract (MLE), reduces postprandial hyperglycemia by inhibiting intestinal a-glycosidase. The aim of this exploratory study was to investigate the effects of MLE on the glycemic indexes (GI) of common dietary carbohydrates. METHODS: This single-center, randomized, open-label, 7-cycle self-controlled crossover study enrolled 15 healthy volunteers at the National Drug Clinical Trial Institution, Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine (June 2014 to December 2014). The participants were randomized to receive glucose (3 occasions), glucose+MLE, sucrose+MLE, maltose+MLE, and maltodextrin+MLE orally during 7 visits (every 3 days). Blood glucose level was tested at 15 minutes before and at 15, 30, 45, 60, 90, and 120 minutes after carbohydrate intake. The GI of each carbohydrate relative to glucose (GI = 100) was calculated using the incremental area under the curve method. Safety was assessed at each visit. RESULTS: All participants completed the protocol. After carbohydrate ingestion, blood glucose level peaked at 30 minutes (glucose, glucose+MLE, sucrose+MLE, and maltose+MLE) or 45 minutes (maltodextrin+MLE) before returning to preprandial levels at 120 minutes. At 30 minutes, the change in blood glucose level was lower for sucrose+MLE, maltose+MLE, and maltodextrin+MLE than for glucose or glucose+MLE (P < .05). GI was lowest for sucrose+MLE (43.22 ±â€Š17.47) and maltose+MLE (49.23 ±â€Š22.39), intermediate for maltodextrin+MLE (75.90 ±â€Š26.01), and higher for glucose+MLE (91.88 ±â€Š27.24). MLE reduced the GIs for maltose, sucrose, maltodextrin, and glucose by 53.11%, 33.51%, 31.00%, and 8.12%, respectively. MLE was well tolerated. CONCLUSIONS: Coconsumption of MLE with sucrose, maltose, or maltodextrin can reduce the GI values of these carbohydrates. TRIAL REGISTRATION: Chinese Clinical Trial Registry Platform, no. ChiCTR-IPR-15006484. Registered on May 28, 2015.


Assuntos
Carboidratos da Dieta/administração & dosagem , Índice Glicêmico/efeitos dos fármacos , Hiperglicemia/tratamento farmacológico , Hipoglicemiantes/farmacologia , Morus/química , Extratos Vegetais/farmacologia , Adulto , Glicemia/efeitos dos fármacos , Estudos Cross-Over , Feminino , Glucose/administração & dosagem , Humanos , Hiperglicemia/sangue , Masculino , Maltose/administração & dosagem , Folhas de Planta/química , Polissacarídeos/administração & dosagem , Período Pós-Prandial , Sacarose/administração & dosagem , Adulto Jovem
14.
Nutrients ; 10(7)2018 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-30021962

RESUMO

Aging is the main factor involved in the onset of degenerative diseases. Dietary protein restriction has been shown to increase the lifespan of rodents and improve metabolic phenotype. Branched-chain amino acids (BCAA) can act as nutrient signals that increase the lifespan of mice after prolonged supplementation. It remains unclear whether the combination of protein restriction and BCAA supplementation improves metabolic and immunological profiles during aging. Here, we investigated how dietary protein levels and BCAA supplementation impact metabolism and immune profile during a 12-month intervention in adult male C57BL/6J mice. We found that protein restriction improved insulin tolerance and increased hepatic fibroblast growth factor 21 mRNA, circulating interleukin (IL)-5 concentration, and thermogenic uncoupling protein 1 in subcutaneous white fat. Surprisingly, BCAA supplementation conditionally increased body weight, lean mass, and fat mass, and deteriorated insulin intolerance during protein restriction, but not during protein sufficiency. BCAA also induced pro-inflammatory gene expression in visceral adipose tissue under both normal and low protein conditions. These results suggest that dietary protein levels and BCAA supplementation coordinate a complex regulation of metabolism and tissue inflammation during prolonged feeding.


Assuntos
Envelhecimento , Aminoácidos de Cadeia Ramificada/uso terapêutico , Dieta com Restrição de Proteínas , Proteínas Alimentares/uso terapêutico , Suplementos Nutricionais , Regulação da Expressão Gênica no Desenvolvimento , Sarcopenia/prevenção & controle , Adiposidade , Aminoácidos de Cadeia Ramificada/efeitos adversos , Aminoácidos de Cadeia Ramificada/metabolismo , Animais , Citocinas/sangue , Dieta com Restrição de Proteínas/efeitos adversos , Proteínas Alimentares/efeitos adversos , Proteínas Alimentares/metabolismo , Suplementos Nutricionais/efeitos adversos , Perfilação da Expressão Gênica , Resistência à Insulina , Fígado/crescimento & desenvolvimento , Fígado/imunologia , Fígado/metabolismo , Fígado/patologia , Masculino , Camundongos Endogâmicos C57BL , Tamanho do Órgão , Proteômica/métodos , Distribuição Aleatória , Sarcopenia/imunologia , Sarcopenia/metabolismo , Sarcopenia/patologia , Baço/crescimento & desenvolvimento , Baço/imunologia , Baço/metabolismo , Baço/patologia , Gordura Subcutânea Abdominal/crescimento & desenvolvimento , Gordura Subcutânea Abdominal/imunologia , Gordura Subcutânea Abdominal/metabolismo , Gordura Subcutânea Abdominal/patologia , Timo/crescimento & desenvolvimento , Timo/imunologia , Timo/metabolismo , Timo/patologia , Aumento de Peso
15.
BMJ Open ; 8(4): e020123, 2018 04 09.
Artigo em Inglês | MEDLINE | ID: mdl-29632082

RESUMO

INTRODUCTION: Osteoporosis (OP) has been defined as a degenerative bone disease characterised by low bone mass and microstructural deterioration of bone tissue, leading to fragility and an increased risk of fractures, especially of the hip, spine and wrist. Exercise has been shown to benefit the maintenance of bone health and improvement of muscle strength, balance and coordination, thereby reducing the risk of falls and fractures. However, prior findings regarding the optimal types and regimens of exercise for treating low bone mineral density (BMD) in elderly people are not consistent. As an important component of traditional Chinese Qigong exercises, Tai Chi (TC) is an ancient art and science of healthcare derived from the martial arts. The objective of this study is to attempt to conduct a systematic review and meta-analysis of the existing studies on TC exercise as an intervention for the prevention or treatment of OP in elderly adults and to draw more useful conclusions regarding the safety and the effectiveness of TC in preventing or treating OP. METHODS AND ANALYSIS: Eight electronic databases (Science Citation Index, PubMed Database, Embase (Ovid) Database, the Cochrane Central Register of Controlled Trials, and Chinese databases, including Chinese BioMedical Database, China National Knowledge Infrastructure, Wanfang database and the Chongqing VIP Chinese Science and Technology Periodical Database) will be searched from the beginning of each database to 1 April 2018. Potential outcomes of interest will include rates of fractures or falls, BMD at the total hip and the total spine, bone formation biomarkers, bone resorption biomarkers, bone biomarkers, health-related quality of life and adverse events. Only randomised controlled trials comparing TC exercise against each other or non-intervention will be included. The Cochrane risk of bias assessment tool will be used for quality assessment. ETHICS AND DISSEMINATION: Ethical approval is not required as the study will be a review of existing studies. This review may help to elucidate whether TC exercise is effective for the prevention or treatment of OP in elderly adults. The findings of the study will be published in a peer-reviewed publication and will be disseminated electronically or in print. We will share the findings in the fourth quarter of 2018. TRIAL REGISTRATION NUMBER: CRD42018084950.


Assuntos
Osteoporose , Tai Chi Chuan , Adulto , Idoso , Fraturas Ósseas/etiologia , Fraturas Ósseas/prevenção & controle , Humanos , Metanálise como Assunto , Pessoa de Meia-Idade , Osteoporose/complicações , Osteoporose/prevenção & controle , Osteoporose/terapia , Qualidade de Vida , Revisões Sistemáticas como Assunto
16.
BMJ Open ; 8(3): e020400, 2018 03 30.
Artigo em Inglês | MEDLINE | ID: mdl-29602854

RESUMO

INTRODUCTION: Constipation is one of the most common complications in patients with stroke. Acupuncture has gained increased popularity for the management of constipation. However, there is a lack of supportive evidence on the efficacy of acupuncture for poststroke constipation. This systematic review aims to collect and critically appraise all the available evidence about the efficacy and safety of the acupuncture for constipation in poststroke patients. METHODS AND ANALYSIS: A comprehensive search of Pubmed, Embase, Cochrane Central Register of Controlled Trials, Web of Science, four Chinese databases (National Knowledge Infrastructure (CNKI), Chinese Biomedical Literatures database (CBM), Wanfang Digital Periodicals (WANFANG) and Chinese Science and Technology Periodicals (VIP) database), one Japanese medical database (National Institute of Informatics, CiNii) and one Korean medical database (Oriental Medicine Advanced Searching Integrated System, OASIS) will be conducted to identify randomised controlled trials of acupuncture for constipation in poststroke patients. There is no restriction on language or publication status. The primary outcome measure will be frequency of bowel movement. The risk of bias will be assessed using the approach recommended by Cochrane Handbook for Systematic Reviews of Interventions. We will conduct the meta-analysis to synthesise the evidence for each outcome, if possible. The heterogeneity will be statistically assessed using a χ2 test and I2 statistic. This protocol is developed following the guideline of Preferred Reporting Items for Systematic Reviews and Meta-analyses Protocols 2015. ETHICS AND DISSEMINATION: The ethical approval is not required because no primary data are collected. The findings will be presented at scientific conferences or a peer-reviewed scientific journal. PROSPERO REGISTRATION NUMBER: CRD42017076880.


Assuntos
Terapia por Acupuntura , Constipação Intestinal , Doença Crônica , Constipação Intestinal/terapia , Humanos , Metanálise como Assunto , Revisões Sistemáticas como Assunto
17.
Chemosphere ; 201: 159-167, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29524816

RESUMO

Neonicotinoid insecticides (NIs) have recently been recognized as co-factors in the decline of honeybee colonies because most neonicotinoids are systemic and can transfer into the pollen and nectar of many pollinated crops. In this study, we collected pollen, nectar and leaves from a cotton crop treated with imidacloprid and thiamethoxam to measure the residue levels of these two NIs at different application doses during the flowering period. Then, the residual data were used to assess the risk posed by the systemic insecticides to honeybees following mandated methods published by the European Food Safety Authority (EFSA), and a highly toxic risk to honeybees was highlighted. Imidacloprid was found in both pollen and nectar samples, whereas thiamethoxam was found in 90% of pollen samples and over 60% of nectar samples. Analysis of the pollen and nectar revealed residual amounts of imidacloprid ranging from 1.61 to 64.58 ng g-1 in the pollen and from not detected (ND) to 1.769 ng g-1 in the nectar. By comparison, the thiamethoxam concentrations in pollen and nectar ranged from ND to 14.521 ng g-1 and from ND to 4.285 ng g-1, respectively. The results of this study provide information on the transfer of two NIs from seed treatment to areas of the plant and provides an understanding of the potential exposure of the bee and other pollinators to systemic insecticides.


Assuntos
Abelhas/efeitos dos fármacos , Produtos Agrícolas/química , Gossypium/química , Neonicotinoides/análise , Nitrocompostos/análise , Oxazinas/análise , Resíduos de Praguicidas/análise , Tiazóis/análise , Animais , China , Neonicotinoides/toxicidade , Nitrocompostos/toxicidade , Oxazinas/toxicidade , Resíduos de Praguicidas/toxicidade , Folhas de Planta/química , Néctar de Plantas/química , Pólen/química , Polinização , Medição de Risco , Sementes/química , Tiametoxam , Tiazóis/toxicidade
18.
J Econ Entomol ; 111(2): 899-908, 2018 04 02.
Artigo em Inglês | MEDLINE | ID: mdl-29471494

RESUMO

The tea green leafhopper, Empoasca onukii Matsuda (Hemiptera: Cicadellidae), is an economically important pest of tea crops, Camellia sinensis (L.) O. Kuntze (Ericales: Theaceae), in China. The morphological, physiological, and biochemical changes of two tea cultivars, the normal green tea cultivar 'Fudingdabai' and the novel chlorophyll-deficient albino cultivar 'Huangjinya', infested by E. onukii were investigated to determine the tolerance of different tea cultivars to E. onukii attack. E.onukii infestation affected the growth of tea plants, and decreased the shoot length, leaf area, leaf thickness, and stem diameter. Also, E. onukii infestation lowered the thicknesses of upper epidermis, palisade tissue, and spongy tissue of leaves, and the parenchyma tissue thickness and pith diameter of stem internode. E.onukii infestation reduced the chlorophyll a, b and carotenoid contents within the leaves of 'Huangjinya,' which further influenced the photosynthetic rate. The maximum quantum yield and actual photochemical efficiency of photosystem II, and non-photochemical quenching in 'Huangjinya' were inhibited under E. onukii infestation. Peroxidase activity of E. onukii-infested 'Huangjinya' increased more than superoxide dismutase and catalase. In addition, E. onukii feeding changed the contents of free amino acids, tea polyphenols, caffeine, and catechins in leaves of 'Huangjinya'. Overall, the light-induced albino cultivar 'Huangjinya' was susceptible to E. onukii while 'Fudingdabai' was resistant.


Assuntos
Antibiose , Camellia sinensis/anatomia & histologia , Camellia sinensis/fisiologia , Hemípteros/fisiologia , Herbivoria , Animais , Camellia sinensis/genética , China , Cadeia Alimentar
19.
Chin J Integr Med ; 24(3): 163-170, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29340887

RESUMO

How to test the treatments of Chinese medicine (CM) and make them more widely accepted by practitioners of Western medicine and the international healthcare community is a major concern for practitioners and researchers of CM. For centuries, various approaches have been used to identify and measure the efficacy and safety of CM. However, the high-quality evidence related to CM that produced in China is still rare. Over the recent years, evidence-based medicine (EBM) has been increasingly applied to CM, strengthening its theoretical basis. This paper reviews the past and present state of CM, analyzes the status quo, challenges and opportunities of basic research, clinical trials, systematic reviews, clinical practice guidelines and clinical pathways and evidence-based education developed or conducted in China, pointing out how EBM can help to make CM more widely used and recognized worldwide.


Assuntos
Medicina Baseada em Evidências , Medicina Tradicional Chinesa , Procedimentos Clínicos , Humanos , Guias de Prática Clínica como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto
20.
Chin J Integr Med ; 23(12): 948-955, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29079906

RESUMO

OBJECTIVE: To provide evidence-based recommendations for clinical application and provoke thoughts for future researchers by conducting a comprehensive summary and evaluation of the current evidence profile for the role of Chinese medicine (CM) in treating myocardial infarction (MI). METHODS: Online databases including PubMed, EMBase, Cochrane Library, Chinese National Knowledge Infrastructure (CNKI), Chinese Biomedical Medicine (CBM), VIP Journal Integration Platform, and Wanfang database were systematically searched for literatures on CM in treating MI. After screening, studies were categorized into 5 types, i.e. systematic review (SR), randomized controlled trial (RCT), observational study, case report and basic research. General information was abstracted, and the quality levels of these studies and their conclusions were summarized and assessed. RESULTS: A total of 452 studies including 10 SRs, 123 RCTs, 47 observational studies, 28 case reports, and 244 basic researches were selected. Clinical studies centered primarily on herbal decoction and mostly were not rigorously performed. High-quality studies were predominantly on Chinese patent medicines (CPMs) such as Danshen Injection (), Shenmai Injection (), Shengmai Injection () and Qishen Yiqi Dripping Pills (). The most frequently observed pattern of drug combination was decoction plus injection. Results of SRs and clinical studies showed that CM may reduce mortality, decrease risk of complication, reduce myocardial injury, improve cardiac function and inhibit ventricular remodeling. Findings from basic researches also supported the positive role of CM in reducing infarct size and myocardial injury, promoting angiogenesis, preventing ventricular remodeling and improving cardiac function. According to the current evidence body, CM has proven effects in the prevention and treatment of MI. It is also found that the effects of CPMs vary with indications. For instance, Shenmai Injection has been found to be especially effective for reducing the incidence of acute clinical events, while CPMs with qi-nourishing and bloodcirculating properties have been proven to be effective in inhibiting ventricular remodeling. High quality evidence supports the use of CM injection for acute MI and CPM for secondary prevention. Reports on adverse events and other safety outcomes associated with CM for MI are scarce. CONCLUSIONS: Sufficient evidence supported the use of CM as an adjuvant to Western medicine for preventing and treating MI. The choice of drug use varies with disease stage and treatment objective. However, the quality of the evidence body remains to be enhanced.


Assuntos
Medicamentos de Ervas Chinesas/uso terapêutico , Medicina Baseada em Evidências , Infarto do Miocárdio/tratamento farmacológico , Animais , Formas de Dosagem , Humanos , Infarto do Miocárdio/prevenção & controle , Estudos Observacionais como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto
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