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1.
Cancer Med ; 9(4): 1419-1429, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31893575

RESUMO

Early identification of metastatic or recurrent colorectal cancer (CRC) patients who will be sensitive to FOLFOX (5-FU, leucovorin and oxaliplatin) therapy is very important. We performed microarray meta-analysis to identify differentially expressed genes (DEGs) between FOLFOX responders and nonresponders in metastatic or recurrent CRC patients, and found that the expression levels of WASHC4, HELZ, ERN1, RPS6KB1, and APPBP2 were downregulated, while the expression levels of IRF7, EML3, LYPLA2, DRAP1, RNH1, PKP3, TSPAN17, LSS, MLKL, PPP1R7, GCDH, C19ORF24, and CCDC124 were upregulated in FOLFOX responders compared with nonresponders. Subsequent functional annotation showed that DEGs were significantly enriched in autophagy, ErbB signaling pathway, mitophagy, endocytosis, FoxO signaling pathway, apoptosis, and antifolate resistance pathways. Based on those candidate genes, several machine learning algorithms were applied to the training set, then performances of models were assessed via the cross validation method. Candidate models with the best tuning parameters were applied to the test set and the final model showed satisfactory performance. In addition, we also reported that MLKL and CCDC124 gene expression were independent prognostic factors for metastatic CRC patients undergoing FOLFOX therapy.

2.
Medicine (Baltimore) ; 98(39): e16982, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31574797

RESUMO

To investigate factors predicting the onset of major adverse cardiovascular and cerebrovascular events (MACCEs) after primary percutaneous coronary intervention (pPCI) for patients with non-ST-segment elevation infarction (NSTEMI) and single concomitant chronic total occlusion (CTO). Neutrophil gelatinase-associated lipocalin (NGAL) and glycosylated hemoglobin (HbA1c) both play essential role in cardiovascular and cerebrovascular homoeostasis. However, current knowledge of its predictive prognostic value is limited.422 patients with NSTEMI and CTO (59.7 ±â€Š12.4 years, 74.2% men) who underwent successful pPCI were enrolled and followed for 2 years. Multivariate cox regression analysis and receiver operating characteristic (ROC) curve analysis were performed to determine the factors predicting MACCEs.140 patients (33.2%) experienced MACCEs in the follow-up period. Multivariate cox regression analysis found when we process the model with NGAL at admission, low left ventricular ejection fraction (LVEF, HR = 0.963, 95% CI 0.940 to 0.987, P = .003) and fasting blood glucose (HR = 1.078, 95% CI 1.002 to 1.159, P = .044), but not NGAL at admission, were independent predictors of 2 years MACCEs. While HbA1C (HR = 1.119, 95% CI 1.014 to 1.234, P = .025), LVEF (HR = 0.963, 95% CI 0.939 to 0.987, P = .003), estimated glomerular filtration rate (HR = 1.020, 95% CI 1.006 to 1.035, P = .006) and NGAL value 7 day (HR = 1.020, 95% CI 1.006 to 1.035, P = .006) showed their predictive value in another model. ROC analysis indicated NGAL 7 day (AUC = 0.680, P = .0054 and AUC = 0.622, P = .0005) and LVEF (AUC = 0.691, P = .0298 and AUC = 0.605, P = .0021) could predict both in-hospital and 2 years MACCEs, while higher NGAL at admission could only predict poorer in-hospital prognosis (AUC = 0.665, P = .0103). Further analysis showed the prognostic value of NGAL was particularly remarkable among those HbA1C<6.5%.Patients with NSTEMI and single concomitant CTO receiving pPCI with higher NGAL on 7 days during hospitalization are more likely to suffer 2 years MACCEs, particularly in those with lower HbA1C.


Assuntos
Oclusão Coronária/sangue , Oclusão Coronária/cirurgia , Hemoglobina A Glicada/metabolismo , Lipocalina-2/sangue , Infarto do Miocárdio sem Supradesnível do Segmento ST/sangue , Infarto do Miocárdio sem Supradesnível do Segmento ST/cirurgia , Intervenção Coronária Percutânea , Idoso , Biomarcadores/sangue , Glicemia/metabolismo , Oclusão Coronária/complicações , Oclusão Coronária/fisiopatologia , Morte Súbita Cardíaca/etiologia , Feminino , Taxa de Filtração Glomerular , Humanos , Masculino , Pessoa de Meia-Idade , Revascularização Miocárdica , Infarto do Miocárdio sem Supradesnível do Segmento ST/complicações , Infarto do Miocárdio sem Supradesnível do Segmento ST/fisiopatologia , Prognóstico , Estudos Prospectivos , Choque Cardiogênico/etiologia , Acidente Vascular Cerebral/etiologia , Volume Sistólico
3.
BMC Cancer ; 19(1): 988, 2019 Oct 23.
Artigo em Inglês | MEDLINE | ID: mdl-31647032

RESUMO

BACKGROUND: Laparoscopic surgery, fast-track perioperative treatment and XELOX chemotherapy are effective strategies for shortening the duration of hospital stay for cancer patients. This trial aimed to clarify the safety and efficacy of the fast-track multidisciplinary treatment (FTMDT) model compared to conventional surgery combined with chemotherapy in Chinese colorectal cancer patients. METHODS: This trial was a prospective randomized controlled study with a 2 × 2 balanced factorial design and was conducted at six hospitals. Patients in group 1 (FTMDT) received fast-track perioperative treatment and XELOX adjuvant chemotherapy. Patients in group 2 (conventional treatment) received conventional perioperative treatment and mFOLFOX6 adjuvant chemotherapy. Subgroups 1a and 2a had laparoscopic surgery and subgroups 1b and 2b had open surgery. The primary endpoint was total length of hospital stay during treatment. RESULTS: A total of 374 patients were randomly assigned to the four subgroups, and 342 patients were finally analyzed, including 87 patients in subgroup 1a, 85 in subgroup 1b, 86 in subgroup 2a, and 84 in subgroup 2b. The total hospital stay of group 1 was shorter than that of group 2 [13 days, (IQR, 11-17 days) vs. 23.5 days (IQR, 15-42 days), P = 0.0001]. Compared to group 2, group 1 had lower surgical costs, fewer in-hospital complications and faster recovery (all P < 0.05). Subgroup 1a showed faster surgical recovery than that of subgroup 1b (all P < 0.05). There was no difference in 5-year overall survival between groups 1 and 2 [87.1% (95% CI, 80.7-91.5%) vs. 87.1% (95% CI, 80.8-91.4%), P = 0.7420]. CONCLUSIONS: The FTMDT model, which integrates laparoscopic surgery, fast-track treatment, and XELOX chemotherapy, was the superior model for enhancing the recovery of Chinese patients with colorectal cancer. TRIAL REGISTRATION: ClinicalTrials.gov: NCT01080547 , registered on March 4, 2010.

4.
Front Oncol ; 9: 497, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31263674

RESUMO

Background: Patients with rectal cancer who achieve pathologic complete response (pCR) after neoadjuvant chemoradiotherapy (nCRT) may have a better prognosis and may be eligible for non-operative management. The aim of this research was to identify variables for predicting pCR in rectal cancer patients after nCRT and to define clinical risk factors for poor outcome after pCR to nCRT and radical resection in rectal cancer patients. Methods: A retrospective review was performed using the Surveillance, Epidemiology, and End Results (SEER) database from 2004 to 2013. Non-metastatic rectal cancer patients who received radical resection after neoadjuvant chemoradiotherapy were included in this study. Multivariate analysis of the association between clinicopathological characteristics and pCR was performed, and a logistic regression model was used to identify independent predictors for pCR. A nomogram based on the multivariate logistics regression was built with decision curve analyses to evaluate the clinical usefulness. Results: A total of 6,555 patients were included in this study. The proportion of patients with pCR was 20.5% (n = 1,342). The nomogram based on multivariate logistic regression analysis showed that clinical T4 and N2 stages were the most significant independent clinical predictors for not achieving pCR, followed by mucinous adenocarcinoma and positive pre-treatment serum CEA results. The 3-year overall survival rate was 92.4% for those with pCR and 88.2% for those without pCR. Among all the pCR patients, mucinous adenocarcinoma patients had the worst survival, with a 3-year overall survival rate of 67.5%, whereas patients with common adenocarcinoma had an overall survival rate of 93.8% (P < 0.001). Univariate and multivariate analyses showed that histology and clinical N2 stage were independent risk factors. Conclusion: Mucinous adenocarcinoma, positive pre-treatment serum CEA results, and clinical T4 and N2 stages may impart difficulty for patients to achieve pCR. Mucinous adenocarcinoma and clinical N2 stage might be indicative of a prognostically unfavorable biological tumor profile with a greater propensity for local or distant recurrence and decreased survival.

5.
BMJ Open ; 9(3): e023923, 2019 03 05.
Artigo em Inglês | MEDLINE | ID: mdl-30842109

RESUMO

INTRODUCTION: Patients with chronic heart failure (CHF) can benefit from exercise rehabilitation (ER) with significant improvements in exercise capacity, quality of life and reduction in hospitalisations. Despite its reported benefits, only a small number of patients with CHF attend ER due to poor adherence, and improper exercise may even lead to adverse events. Remote ECG monitoring system (REMS) has the potential to overcome these obstacles. We hypothesise that home-based cardiac ER using REMS in CHF patients is effective compared with conventional ER without monitoring. METHODS AND ANALYSIS: This study is a prospective, randomised, parallel controlled clinical trial designed to evaluate the effectiveness of home-based phase-II ER with REMS in the treatment of CHF with a target enrolment of 120 patients (left ventricular ejection fraction <50%, New York Heart Association (NYHA) classes I to III). Patients are randomised to either REMS rehabilitation group or conventional rehabilitation group in a 1:1 ratio. All patients start an exercise training in a supervised setting and then transition to a home-based regimen. The supervised training phase consists of 12 supervised training sessions, three sessions per week for 4 weeks. During the home exercise phase, patients exercise five times per week for 8 weeks. In the REMS group, patients wear monitors during exercise to ensure that exercise intensity is within the set ranges. REMS will also detect risky arrhythmia and alert the patients and their doctors on time. The training intensity is not monitored in the conventional rehabilitation group. The primary outcome is exercise capacity improvement measured by peak oxygen uptake (VO2 peak) (baseline vs 3 m). Secondary outcomes include 6-min walk test, NYHA classes, echocardiographic parameters, cardiac biomarkers, major adverse cardiovascular events, quality of life, psychological well-being and patients' adherence to the rehabilitation programme. ETHICS AND DISSEMINATION: This study was approved by Ethics Committee of China-Japan Friendship Hospital for Clinical Research (No. 2018-55 K39). The results of this study will be disseminated via peer-reviewed publications and presentations at conferences. TRIAL REGISTRATION NUMBER: ChiCTR-RNR-17012446; Pre-results.

6.
J Cell Physiol ; 234(4): 3675-3684, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30256389

RESUMO

Hepatocyte nuclear factor 6 (HNF6), as a transcription factor, has been reported to be involved in cell proliferation, carcinogenesis, and tumor metastasis. Here, we demonstrated the role of HNF6 in tumor growth and liver metastasis in colorectal cancer (CRC). Through bioinformatics and clinical samples analysis, we found HNF6 messenger RNA was upregulated both in CRC primary sites and liver metastases, and its high expression indicated poor survival in CRC patients. In vitro studies confirmed that HNF6 promoted cell proliferation and colony formation. What is more, in mouse models, the xenografts grew significantly faster and liver metastasis rate was nearly 45% higher in mice injected with HNF6-overexpressing cells. Further mechanism exploration showed that HNF6 expression affected cell adhesion and conferred resistance to anoikis in CRC cells. Taken together, HNF6 expression was upregulated in CRC and closely correlated with poor survival. HNF6 promoted CRC cell proliferation and tumor growth, and may contribute to liver metastasis via conferring cell resistance to anoikis.

7.
J Orthop Translat ; 13: 41-49, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29662790

RESUMO

Lumbar laminectomy often results in failed back surgery syndrome. Most scholars support the three-dimensional theory of adhesion: Fibrosis surrounding the epidural tissues is based on the injured sacrospinalis behind, fibrous rings and posterior longitudinal ligaments. Approaches including using the minimally invasive technique, drugs, biomaterial and nonbiomaterial barriers to prevent the postoperative epidural adhesion were intensively investigated. Nevertheless, the results are far from satisfactory. Our review is based on various implant biomaterials that are used in clinical applications or are under study. We show the advantages and disadvantages of each method. The summary will help us to figure out ideas towards new techniques. The translational potential of this article: This review summarises recent biomaterials-related clinical and basic research that focuses on prevention of epidural adhesion after lumbar laminectomy. We also propose a novel possible translational method where a soft scaffold acts as a physical barrier in the early stage, engineered adipose tissue acts as a biobarrier in the later stage in the application of biomaterials and adipose-derived mesenchymal stem cells are used for prevention of epidural adhesion.

9.
J Immunol Res ; 2017: 7424307, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29038791

RESUMO

Atherosclerosis is a chronic inflammatory disease caused by dyslipidemia and mediated by both innate and adaptive immune responses. Inflammation is a critical factor at all stages of atherosclerosis progression. Proinflammatory cytokines accelerate atherosclerosis progression, while anti-inflammatory cytokines ameliorate the disease. Accordingly, strategies to inhibit immune activation and impede immune responses towards anti-inflammatory activity are an alternative therapeutic strategy to conventional chemotherapy on cardiocerebrovascular outcomes. Since a number of Chinese medicinal plants have been used traditionally to prevent and treat atherosclerosis, it is reasonable to assume that the plants used for such disease may suppress the immune responses and the resultant inflammation. This review focuses on plants that have immunomodulatory effects on the production of inflammatory cytokine burst and are used in Chinese traditional medicine for the prevention and therapy of atherosclerosis.


Assuntos
Aterosclerose/tratamento farmacológico , Citocinas/antagonistas & inibidores , Dislipidemias/tratamento farmacológico , Imunossupressores/uso terapêutico , Inflamação/tratamento farmacológico , Medicina Tradicional Chinesa , Substâncias Protetoras/uso terapêutico , Animais , Humanos , Imunomodulação
10.
Chin Med J (Engl) ; 130(16): 1914-1918, 2017 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-28776542

RESUMO

BACKGROUND: Coronary intervention therapy is the main treatment for uremic patients with coronary heart disease. The studies on whether dialysis reduces the efficacy of dual antiplatelet drugs are limited. The aim of this study was to examine the effect of dialysis on antiplatelet drugs in uremic patients with coronary heart disease. METHODS: This study included 26 uremic patients who had undergone percutaneous coronary intervention in China-Japan Friendship Hospital from November 2015 to May 2017. We examined their thromboelastography results before and after hemodialysis. Self-paired t-tests were employed to analyze changes in the inhibition rate of platelet aggregation. RESULTS: The mean inhibition rates of arachidonic acid-induced platelet aggregation before and after hemodialysis were 82.56 ± 2.79% and 86.42 ± 3.32%, respectively (t= -1.278, P= 0.213). The mean inhibition rates of adenosine diphosphate-induced platelet aggregation before and after hemodialysis were 67.87 ± 5.10% and 61.94 ± 5.90%, respectively (t = 1.425, P= 0.167). There was no significant difference in the inhibition rates of platelet aggregation before or after hemodialysis. These results also applied to patients with different sensitivity to aspirin and clopidogrel. CONCLUSION: Dialysis did not affect the antiplatelet effects of aspirin and clopidogrel in uremic patients with coronary heart disease.


Assuntos
Doença das Coronárias/tratamento farmacológico , Inibidores da Agregação de Plaquetas/uso terapêutico , Diálise Renal , Uremia/tratamento farmacológico , Idoso , Aspirina/uso terapêutico , Clopidogrel , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Agregação Plaquetária/efeitos dos fármacos , Tromboelastografia , Ticlopidina/análogos & derivados , Ticlopidina/uso terapêutico
11.
Sci Rep ; 7: 41640, 2017 01 31.
Artigo em Inglês | MEDLINE | ID: mdl-28139714

RESUMO

Detection of volatile organic compounds (VOCs) at parts-per-billion (ppb) level is one of the most challenging tasks for miniature gas sensors because of the high requirement on sensitivity and the possible interference from moisture. Herein, for the first time, we present a novel platform based on a hybrid photonic cavity with metal-organic framework (MOF) coatings for VOCs detection. We have fabricated a compact gas sensor with detection limitation ranging from 29 to 99 ppb for various VOCs including styrene, toluene, benzene, propylene and methanol. Compared to the photonic cavity without coating, the MOF-coated solution exhibits a sensitivity enhancement factor up to 1000. The present results have demonstrated great potential of MOF-coated photonic resonators in miniaturized gas sensing applications.


Assuntos
Técnicas Biossensoriais , Umidade , Estruturas Metalorgânicas , Fótons , Compostos Orgânicos Voláteis/análise , Técnicas Biossensoriais/instrumentação , Técnicas Biossensoriais/métodos , Modelos Teóricos
12.
Nanotechnology ; 22(18): 185309, 2011 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-21427471

RESUMO

A simple, cost-effective and lithography-free fabrication of graphene strips for device applications is demonstrated. The graphene thin layers were directly grown on Cu wires, followed by Cu etching and transfer printing to arbitrary substrates by a PDMS stamp. The Cu wires can be arranged on the PDMS stamp in a desired pattern; hence, the substrates can receive graphene strips with the same pattern. Moreover, the preparation of graphene strips does not involve conventional lithography; therefore, the surface of the graphene strip is free of residual photoresists, which may be useful for studies requiring clean graphene surfaces.

14.
Nano Rev ; 12010.
Artigo em Inglês | MEDLINE | ID: mdl-22110861

RESUMO

The interface between biosystems and nanomaterials is emerging for detection of various biomolecules and subtle cellular activities. In particular, the development of cost-effective and sequence-selective DNA detection is urgent for the diagnosis of genetic or pathogenic diseases. Graphene-based nanocarbon materials, such as carbon nanotubes and thin graphene layers, have been employed as biosensors because they are biocompatible, extraordinarily sensitive, and promising for large-area detection. Electrical and label-free detection of DNA can be achieved by monitoring the conductance change of devices fabricated from these carbon materials. Here, the recent advances in this research area are briefly reviewed. The key issues and perspectives of future development are also discussed.

16.
Biosens Bioelectron ; 24(8): 2716-20, 2009 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-19135355

RESUMO

Owing to its unique combination of electrical, physiochemical, and one-dimension structural properties, single-walled carbon nanotube (SWNT) has recently emerged as a novel nanoelectronic biosensor for biomolecular detection with extraordinary sensitivity and simple detection scheme. All the realizations so far, however, are limited to static in vitro measurement. Dynamic detection of biomolecule release from living cells which may occur in millisecond timescale has yet to be demonstrated. In the present work, SWNT network was utilized to directly interface with living neuroglial astrocytes and label-freely detect the triggered release of adenosine triphosphate (ATP) from these cells with high temporal resolution. The secreted ATP molecules diffuse into the narrow interface gap between the SWNT-net and the astrocyte, and interact with the nanotubes. Highly charged ATP molecules electrostatically modulate the SWNT conductance leading to measurable current response. This technique provides a novel platform to study ATP release and signaling which play important roles in astrocyte-neuron crosstalk and other essential cellular functions.


Assuntos
Trifosfato de Adenosina/análise , Astrócitos/metabolismo , Técnicas Biossensoriais/instrumentação , Eletroquímica/instrumentação , Nanotubos de Carbono/química , Rede Nervosa/metabolismo , Animais , Células Cultivadas , Desenho de Equipamento , Análise de Falha de Equipamento , Humanos , Nanotubos de Carbono/ultraestrutura , Neurotransmissores/análise , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Coloração e Rotulagem
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