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BACKGROUND: Gastric cancer, characterized by a multifactorial etiology and high heterogeneity, continues to confound researchers in terms of its pathogenesis. Curcumin, a natural anticancer agent, exhibits therapeutic promise in gastric cancer. Its effects include promoting cell apoptosis, curtailing tumor angiogenesis, and enhancing sensitivity to radiation and chemotherapy. Long noncoding RNAs (lncRNAs) have garnered significant attention as biomarkers for early screening, diagnosis, treatment, and drug response because of their remarkable specificity and sensitivity. Recent investigations have revealed an association between aberrant lncRNA expression and early diagnosis, clinical staging, metastasis, drug sensitivity, and prognosis in gastric cancer. A profound understanding of the intricate mechanisms through which lncRNAs influence gastric cancer development can provide novel insights for precision treatment and tailored management of patients with gastric cancer. This study aimed to unravel the potential of curcumin in suppressing the malignant behavior of gastric cancer cells by upregulating specific lncRNAs and modulating gastric cancer onset and progression. AIM: To identify lncRNAs associated with curcumin treatment and investigate the role of lncRNA AC022424.2 in the effects of curcumin on gastric cancer cell apoptosis, proliferation, and invasion. Furthermore, these findings were validated in clinical samples. METHODS: The study employed CCK-8 assays to assess the impact of curcumin on gastric cancer cell proliferation, flow cytometry to investigate its effects on apoptosis, and scratch and Transwell assays to evaluate its influence on the migration and invasion of BGC-823 and MGC-803 cells. Western blotting was used to gauge changes in the protein expression levels of CDK6, CDK4, Bax, Bcl-2, caspase-3, P65, and the PI3K/Akt/mTOR pathway in gastric cancer cell lines after curcumin treatment. Differential expression of lncRNAs before and after curcumin treatment was assessed using lncRNA sequencing and validated using quantitative reverse transcription polymerase chain reaction (qRT-PCR) in BGC-823 and MGC-803 cells. AC022424.2-1 knockdown BGC-823 and MGC-803 cells were generated to scrutinize the impact of lncRNA AC022424.2 on apoptosis, proliferation, migration, and invasion of gastric cancer cells. Western blotting was performed to ascertain changes in the expression of proteins implicated in the PI3K/Akt/mTOR and NF-κB signaling pathways. RT-PCR was employed to measure lncRNA AC022424.2 expression in clinical gastric cancer tissues and to correlate its expression with clinical pathological characteristics. RESULTS: Curcumin induced apoptosis and hindered proliferation, migration, and invasion of gastric cancer cells in a dose- and time-dependent manner. LncRNA AC022424.2 was upregulated after curcumin treatment, and its knockdown enhanced cancer cell aggressiveness. LncRNA AC022424.2 may have affected cancer cells via the PI3K/Akt/mTOR and NF-κB signaling pathways. LncRNA AC022424.2 downregulation was correlated with lymph node metastasis, making it a potential diagnostic and prognostic marker. CONCLUSION: Curcumin has potential anticancer effects on gastric cancer cells by regulating lncRNA AC022424.2. This lncRNA plays a significant role in cancer cell behavior and may have clinical implications in diagnosis and prognosis evaluation. The results of this study enhance our understanding of gastric cancer development and precision treatment.
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[This retracts the article DOI: 10.3892/ol.2017.6558.].
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The aim of the current study was to investigate luteolin-induced apoptosis and the molecular mechanisms underlying it in HT29 cells. A 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to assess the cytotoxicity of luteolin on HT29 cells, and a dichloro-dihydro-fluorescein diacetate assay was used to measure cellular levels of reactive oxygen species (ROS). The effects of luteolin on the mitochondrial membrane potential were also evaluated. Bax and Bcl-2 mRNA expression were determined using reverse transcription-quantitative PCR. Additionally, western blot analysis was performed to assess changes in cytochrome c and caspase-3 protein expression. Localization of nuclear factor erythroid 2-related factor 2 (Nrf2) in the nucleus was also assessed using immunofluorescence. Luteolin exhibited cytotoxicity on HT29 cells in a time- and concentration-dependent manner. Additionally, ROS production was indicated to be increased and ROS scavenging was decreased, which resulted in a significant increase in the levels of ROS in the cells. The mitochondrial membrane potential was indicated to decrease following luteolin treatment. At the molecular level, luteolin significantly increased the mRNA expression of Bax and the protein expression of cytochrome c, caspase-3, p47phox and p22phox. The results revealed that luteolin decreased Bcl-2 protein expression and inhibited the nuclear localization of Nrf2. In conclusion, the current study indicated that luteolin inhibited HT29 cell proliferation and induced apoptosis via the mitochondrial pathway.
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The present study aimed to investigate the mechanism by which cyclooxygenase2 (COX2) promotes the metastasis of MG63 osteosarcoma cells through the PI3K/AKT/NFκB pathway. To achieve this, a recombinant lentivirus containing the COX2 gene was constructed in order to overexpress COX2; a recombinant lentivirus containing a control sequence was also constructed. A Transwell chamber migration assay was performed to quantify the migration of the COX2transduced cells, and of cells treated with a COX2 inhibitor (NS398) or a PI3K inhibitor (LY294002). Immunofluorescence assays were performed to determine changes in Ecadherin, vimentin and NFκB expression levels. ELISAs were performed to quantify the levels of matrix metallopeptidase (MMP)2, MMP9 and vascular endothelial growth factor (VEGF) in the culture medium. Western blot analysis was conducted to measure the protein expression levels of MMP2, MMP9, PI3K, phosphorylated (p) PI3K, AKT, pAKT, inhibitor of NFκΒ kinase (IKK) and pIKK. The results demonstrated that the migration ability of the COX2overexpressing MG63 cells was significantly increased compared with the control cells. The migration ability of cells treated with NS398 or LY294002 was significantly decreased. Compared with the control cells, Ecadherin expression was significantly decreased in COX2overexpressing cells, while the expression levels of vimentin, MMP2, MMP9, VEGF, pPI3K, pAKT and pIKK were significantly increased. Compared with the control cells, Ecadherin expression was significantly increased in cells treated with NS398 or LY294002, while the expression levels of vimentin, MMP2, MMP9, VEGF, pPI3K, pAKT, and pIKK were significantly decreased. The total protein levels of PI3K, AKT and IKK were not changed among the treatment groups. In summary, COX2 overexpression decreased the expression levels of the epithelial protein Ecadherin and increased the expression levels of the mesenchymal proteins vimentin, MMP2 and MMP9, as well as promoted cell migration, by activating the PI3K/AKT/NFκB signaling pathway.
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Neoplasias Óseas/metabolismo , Ciclooxigenasa 2/metabolismo , Transición Epitelial-Mesenquimal , Osteosarcoma/metabolismo , Transducción de Señal , Neoplasias Óseas/patología , Línea Celular , Línea Celular Tumoral , Humanos , FN-kappa B/metabolismo , Osteosarcoma/patología , Fosfatidilinositol 3-Quinasas/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismoRESUMEN
The aim of this study was to assess the quality of clinical practice guidelines of traumatic brain injury (TBI) and investigate the evidence grading systems.A systematic search of relevant guideline websites and literature databases (including PubMed, NGC, SIGN, NICE, GIN, and Google) was undertaken from inception to May 2018 to identify and select TBI guidelines. Four independent reviewers assessed the eligible guidelines using the Appraisal of Guidelines for Research and Evaluation (AGREE II) instrument. The degree of agreement was evaluated with intraclass correlation coefficient (ICC).From 1802 records retrieved, 12 TBI guidelines were included. The mean scores for each AGREE II domain were as follows: scope and purpose (mean ± SD= 74.2â±â9.09); stakeholder involvement (mean± SD= 54.6â±â11.6); rigor of development (mean ± SD=70.1â±â13.6); clarity and presentation (mean ± SD=78.4â±â11.5); applicability (mean ± SD= 60.5â±â13.6); and editorial independence (mean ± SD=61.7â±â14.8). Ten guidelines were rated as "recommended." The ICC values ranged from 0.73 to 0.95. Seven grading systems were used by TBI guidelines to rate the level of evidence and the strength of recommendation.Most TBI guidelines got a high-quality rating, whereas a standardized grading system should be adopted to provide clear information about the level of evidence and strength of recommendation in TBI guidelines.
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Lesiones Traumáticas del Encéfalo , Medicina Basada en la Evidencia/normas , Guías de Práctica Clínica como Asunto , HumanosRESUMEN
BACKGROUND: Gastrointestinal stromal tumor (GIST) is a rare cancer in gastrointestinal carcinomas and has been widely known as a curable disease among all the digestive tumors. However, early detection of malignant potential in patients with GIST has still been a huge challenge all around the world. CT, MRI, and F-18 FDG PET are all considered as good tests for diagnosing malignant GIST efficiently, but no recommended suggestions presents which test among the 3 is the prior one in detecting the malignant potential of GIST. We perform this study to assess the accuracy between CT, MRI, and F-18 FDG PET through network meta-analysis method, and to rank these tests. METHODS AND ANALYSIS: PubMed, EMBASE.com, CNKI, and CBM databases will be searched without search date and language restrictions. We will include diagnostic tests which assessed the accuracy of CT, MRI, and F-18 FDG PET in detecting the malignant potential of GIST. The risk of bias in each study will be independently assessed as low, moderate, or high using criteria adapted from Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2). Meta-analysis will be performed using STATA 12.0 and R 3.4.1 software. The competing diagnostic tests will be ranked by a superiority index. RESULTS: This study is ongoing, and will be submitted to a peer-reviewed journal for publication. CONCLUSION: This study will provide a comprehensive evidence summary of CT, MRI, and F-18 FDG PET in detecting the malignant potential of GIST.
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Fluorodesoxiglucosa F18/farmacología , Neoplasias Gastrointestinales , Tumores del Estroma Gastrointestinal , Imagen por Resonancia Magnética/métodos , Tomografía de Emisión de Positrones/métodos , Tomografía Computarizada por Rayos X/métodos , Detección Precoz del Cáncer/métodos , Neoplasias Gastrointestinales/diagnóstico , Neoplasias Gastrointestinales/patología , Tumores del Estroma Gastrointestinal/diagnóstico , Tumores del Estroma Gastrointestinal/patología , Humanos , Radiofármacos/farmacología , Reproducibilidad de los Resultados , Proyectos de InvestigaciónRESUMEN
BACKGROUND: Laparoscopic inguinal hernia repair has become a valid option for repair of an inguinal hernia. Due to there are several types of mesh fixation for laparoscopic repair of inguinal hernia. The study aims to assess and compare the efficacy of different types of mesh fixation for laparoscopic repair of inguinal hernia using network meta-analysis. METHODS: We will systematically search PubMed, EMBASE the Cochrane library, and Chinese Biomedical Literature Database from their inception to March 2018. Randomized controlled trials (RCTs) that compared the effect of different types of mesh fixation for laparoscopic inguinal hernia repair will be included. The primary outcomes are chronic groin pain, incidence risk of hernia recurrence, and complications. Risk of bias assessment of the included RCTs will be conducted using to Cochrane risk of bias tool. A network meta-analysis will be performed using WinBUGS 1.4.3 software and the result figures will be generated using R x64 3.1.2 software and STATA V.12.0 software. Grading of Recommendations Assessment, Development and Evaluation (GRADE) will be used to assess the quality of evidence. RESULTS: The results of this study will be published in a peer-reviewed journal. CONCLUSION: Our study will generate evidence of laparoscopic repair of mesh fixation for adult patients with inguinal hernia and provide suggestions for clinical practice or guideline.
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Hernia Inguinal/cirugía , Herniorrafia/instrumentación , Laparoscopía/instrumentación , Mallas Quirúrgicas , Dolor Crónico/etiología , Ingle , Herniorrafia/métodos , Humanos , Laparoscopía/métodos , Tiempo de Internación , Metaanálisis en Red , Tempo Operativo , Dolor Postoperatorio/etiología , Ensayos Clínicos Controlados Aleatorios como Asunto , Recurrencia , Factores de Riesgo , Mallas Quirúrgicas/efectos adversos , Revisiones Sistemáticas como AsuntoRESUMEN
MicroRNAs (miRNAs) are a group of non-protein-coding, highly conserved single-stranded RNA molecules. The abnormal expression of miRNAs has been demonstrated to have an important function in the carcinogenesis and progression of gastric cancer. microRNA-154 (miR-154) has been reported to be downregulated in non-small cell lung, colorectal and prostate cancer. However, the expression and roles of miR-154 in gastric cancer remain to be established. The present study measured the expression levels of miR-154 in gastric cancer tissues and cell lines. miR-154 was found to be significantly downregulated in gastric cancer tissues and cell lines. In addition, functional studies indicated that the overexpression of miR-154 inhibited the proliferation, migration and invasion of gastric cancer cells. Using TargetScan, a dual luciferase reporter assay, reverse transcription-quantitative polymerase chain reaction and western blot analysis, metadherin (MTDH) was revealed as a novel miR-154 target. In addition, knocking down MTDH lead to a similar effect as overexpressing-154 in gastric cells. The present findings indicate that miR-154 was downregulated in gastric cancer, and inhibited tumor behaviors of gastric cancer cells partially through the downregulation of MTDH. Therefore, the miR-154/MTDH axis may be a novel therapeutic to treat patients with gastric cancer.
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Salusin-α and salusin-ß are newly identified bioactive peptides of 28 and 20 amino acids, respectively, that were initially predicted using in silico analyses and are widely distributed in the endocrine system, hematopoietic system, and central nervous system. The goal of our study was to investigate the cardiovascular effect of salusin-ß microinjections into the rostral ventrolateral medulla (RVLM) in anesthetized rats and study their mechanism of action. Microinjection of the artificial cerebrospinal fluid (aCSF) into the RVLM did not affect the blood pressure (BP) or heart rate (HR) in anesthetized rats. Topical application of salusin-ß into the RVLM produced a dose-dependently increase of BP in anesthetized rats. Microinjection of higher dose salusin-ß produced significant tachycardia. Prior application of the L-NAME into the RVLM of rats did not alter the hypertension and tachycardia induced by intra-RVLM salusin-ß. Notable, the cardiovascular functions elicited by intra-RVLM salusin-ß were significantly decreased by pretreatment with Nic, KYN and atropine. In conclusion, the present study shows that the hypertension and tachycardia induced by intra-RVLM salusin-ß might be partly mediated, at least in our opinion, by muscarinic receptors, glutamate receptors or L-type calcium channels.
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Canales de Calcio Tipo L/metabolismo , Fenómenos Fisiológicos Cardiovasculares/efectos de los fármacos , Péptidos y Proteínas de Señalización Intercelular/farmacología , Bulbo Raquídeo/efectos de los fármacos , Receptores de Glutamato/metabolismo , Receptores Muscarínicos/metabolismo , Animales , Atropina/farmacología , Presión Sanguínea/efectos de los fármacos , Frecuencia Cardíaca/efectos de los fármacos , Hipertensión/inducido químicamente , Péptidos y Proteínas de Señalización Intercelular/efectos adversos , Masculino , Bulbo Raquídeo/fisiología , Microinyecciones , Ratas , Ratas Sprague-Dawley , Taquicardia/inducido químicamenteRESUMEN
BACKGROUND: Radiofrequency ablation (RFA) and percutaneous ethanol injection (PEI) are important treatments for patients with hepatocellular carcinoma (HCC) who are not eligible for resection and liver transplantation. Therefore, it is important to establish comparisons between RFA, PEI and the two therapies in combination. AIMS: To evaluate the clinical efficacy and safety of combined RFA-PEI versus monotherapy with either RFA or PEI for HCC to provide references for clinical practice and further research. METHODS: We searched all eligible studies published before September 2015 in the Cochrane Library, PubMed, Embase, Web of Science and Chinese databases, such as CBM, CNKI, VIP and WanFang and also retrieved papers from other sources. All relevant controlled trials were collected. Meta-analyses were performed using RevMan version 5.3 software (The Nordic Cochrane Centre, The Cochrane Collaboration, Copenhagen, Denmark). RESULTS: Thirteen trials with 1621 patients were identified. Compared with PEI, RFA was associated with significant improvement in overall survival (OS) rate at 1, 2, 3 and 4 years, cancer-free survival (CFS) rate at 1, 2 and 3 years and complete tumour necrosis. RFA was associated with a significant reduction in the local recurrence rate at 1, 2 and 3 years. However, RFA was also associated with a higher total risk of complications. Compared with RFA alone, combined RFA-PEI was associated with a significant improvement in the OS rate at 1.5, 2 and 3 years and a significant reduction in the local recurrence rate. However, combined RFA-PEI was also associated with a higher risk of fever. CONCLUSION: The combination of RFA and PEI appears to be the optimal treatment strategy when considering combined RFA-PEI or either RFA or PEI alone. Combined RFA-PEI significantly improves OS and reduces the risk of local recurrence without increasing major complications. Further large-scale studies are needed to assess economic outcomes and quality of life.
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OBJECTIVE: To investigate the effectiveness and safety of controlled venous pressure in liver surgery and further to compare the clinical outcomes of low central venous pressure by infrahepatic inferior vena cava clamping (IVCC) and intraoperative anesthetic control (IAC). METHODS: Online databases including PubMed, Embase, Cochrane Library, Clinical trials.gov, and China biology medicine database were comprehensively searched. After identifying relevant studies out of the search results, quality assessment was performed according to the methods recommended by the Cochrane collaboration. And meta-analysis was performed by both direct comparison and indirect comparison. RESULTS: Thirteen studies containing 1252 patients were included. Compared with control, controlled venous pressure significantly decreased central venous pressure, total blood loss, blood loss during transection, transfusion rate, and total incidence of complications. Further analysis of IVCC and IAC showed that there was no significant difference in aspects of main clinical outcomes. CONCLUSIONS: Controlled venous pressure significantly decreased central venous pressure and achieved improvement of bleeding control in liver surgery. It reduced total incidence of complications and chest infection, while it caused concerns about heart disorder. Although IVCC was not worse than IAC in therapeutic effect, a superiority between them still needs to be explored.
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Presión Venosa Central , Procedimientos Quirúrgicos del Sistema Digestivo/métodos , Hígado/cirugía , Anestesia , Pérdida de Sangre Quirúrgica/prevención & control , Constricción , Procedimientos Quirúrgicos del Sistema Digestivo/efectos adversos , Humanos , Seguridad , Resultado del Tratamiento , Vena Cava InferiorRESUMEN
BACKGROUND: Hypoxia-inducible factor-1α (HIF-1α) plays an important role in tumour progression and metastasis through activation of many target genes that are especially involved in pivotal aspects of cancer biology. However, the prognostic role of HIF-1α has been controversial in primary patients with lung cancer. This meta-analysis was performed to systematically evaluate whether HIF-1α expression is associated with the clinical outcomes in lung cancer patients. METHODS: We retrieved relevant articles from Cochrane library, PubMed, EMbase, CNKI, CBM, VIP and Wan Fang Databases from inception to May 2012. Studies were selected using specific inclusion and exclusion criteria. A systematic review and meta-analysis was performed on the association between HIF-1α expression and clinical outcomes in lung cancer patients. All analyses were performed using the Revman 5.1 software. RESULTS: A total of 30 studies were identified as eligible for the systematic review and meta-analysis. The expression of HIF-1α was significantly higher than those in normal lung tissue; and III-IV stage, lymph node metastasis, poorly differentiation, squamous cell carcinoma and small cell lung cancer (SCLC) were significantly higher than those in I-II stage, no lymph node metastasis, well differentiation, adenocarcinomas and non small cell lung cancer (NSCLC), respectively (odds ratio (OR) = 19.00, 95% confidence interval (CI):12.12-29.78, p <0.00001; OR = 0.23, 95% CI:0.14-0.36, p <0.00001; OR = 3.72, 95% CI:2.38-5.80, p <0.00001; OR = 0.47, 95% CI:0.31-0.70, p <0.00002, OR = 0.24, 95% CI:0.07-0.77, p = 0.02; OR = 0.78, 95% CI:0.63-0.98, p = 0.03). VEGF and CA IX positive expression in HIF-1α positive tumour tissues were significantly higher than those in HIF-1α negative tumour tissues, respectively (OR = 3.23, 95% CI: 1.90-5.46, p <0.0001; OR = 3.84, 95% CI: 2.10-7.03, p <0.0001). The positive HIF-1α tumour tissues of patients had lower 5-year survival rates (OR = 0.13, 95% CI: 0.03-0.47, p = 0.002) and overall survival (relative risk (RR) = 1.68, 95% CI: 1.12-2.50, p = 0.01). CONCLUSIONS: HIF-1α is related to a differing degree of lung cancer cell, lymph node metastasis, post-operative survival time and histology (NSCLC vs. SCLC, adenocarcinomas vs. squamous cell carcinoma). HIF-1 α , which combines other proteins, such as vascular endothelial growth factor (VEGF) or CA IX, might serve as important parameters in evaluating biological behaviour and prognosis of lung cancer; it will be of benefit to clinical treatment and prognostic evaluation.
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Adenocarcinoma/metabolismo , Carcinoma de Células Escamosas/metabolismo , Subunidad alfa del Factor 1 Inducible por Hipoxia/metabolismo , Neoplasias Pulmonares/metabolismo , Carcinoma Pulmonar de Células Pequeñas/metabolismo , Adenocarcinoma/mortalidad , Adenocarcinoma/patología , Carcinoma de Pulmón de Células no Pequeñas/metabolismo , Carcinoma de Pulmón de Células no Pequeñas/mortalidad , Carcinoma de Pulmón de Células no Pequeñas/patología , Carcinoma de Células Escamosas/mortalidad , Carcinoma de Células Escamosas/patología , Humanos , Neoplasias Pulmonares/mortalidad , Neoplasias Pulmonares/patología , Metástasis Linfática , Oportunidad Relativa , Pronóstico , Carcinoma Pulmonar de Células Pequeñas/mortalidad , Carcinoma Pulmonar de Células Pequeñas/patología , Tasa de Supervivencia , Factor A de Crecimiento Endotelial Vascular/metabolismoRESUMEN
BACKGROUND: Adjuvant intraoperative hyperthermic intraperitoneal chemotherapy (IHIC) is a therapy which combines thermotherapy and intraperitoneal chemotherapy. It is theoretically powerful for patients with advanced gastric cancer (AGC), but is there evident advantage in clinical practice? We need evidence to guide our decision-making. OBJECTIVES: Meta-analysis was performed to assess the effectiveness and safety of adjuvant intraoperative hyperthermic intraperitoneal chemotherapy (IHIC) for patients with resectable locally advanced gastric cancer, and to provide the reference for clinical practice and study. METHODS: We searched the Cochrane Library, PubMed, Embase, Web of Science and Chinese databases (Chinese BioMedical Literature Database (CBM), China National Knowledge Infrastructure (CNKI) and Wanfang) electronically and also retrieved papers from other sources (tracing related references and communication with other authors). All relevant randomised controlled trials (RCTs) were collected to compare surgery combined with IHIC to surgery without IHIC for AGC. There were no language restrictions. After independent quality assessment and data extraction by two reviewers, meta-analysis was conducted by RevMan 5.1 software. RESULTS: 16 RCTs involving 1,906 patients were included. Compared with surgery alone, combination therapy (surgery plus IHIC) was associated with a signiï¬cant improvement in survival rate at 1 year (hazard ratio (HR) = 2.99; 95% confidence interval (CI) = 2.21 to 4.05; p < 0.00001), 2 years (HR = 2.43; 95%CI = 1.81 to 3.26; p < 0.00001), 3 years (HR = 2.63; 95%CI = 2.17 to 3.20; p < 0.00001), 5 years (HR = 2.49; 95%CI = 1.97 to 3.14; p < 0.00001), and 9 years (HR = 2.14; 95%CI = 1.38 to 3.32; p = 0.0007). Compared with surgery alone, combination therapy was associated with a signiï¬cant reduction in recurrence rate at 2 years (RR = 0.42; 95%CI = 0.29 to 0.61; p < 0.00001), 3 years (RR = 0.35; 95%CI = 0.24 to 0.51; p < 0.00001) and 5 years (RR = 0.47; 95%CI = 0.39 to 0.56; p < 0.00001). IHIC was not found to be associated with higher risks of anastomotic leakage, ileus, bowel perforation, myelosuppression, gastrointestinal reaction and hypohepatia, but it increased the incidence of abdominal pain (RR = 21.46; 95%CI = 5.24 to 87.78; p < 0.00001). CONCLUSIONS: Compared with surgery alone, surgery combined with IHIC can improve survival rate and reduce the recurrence rate, with acceptable safety. However, safety outcomes should be further evaluated by larger samples and high quality studies. Additionally, hyperthermia for the intraperitoneal chemotherapy needs more clinical research.
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Quimioterapia Adyuvante , Hipertermia Inducida , Neoplasias Gástricas/tratamiento farmacológico , Neoplasias Gástricas/cirugía , Terapia Combinada/efectos adversos , Humanos , Hipertermia Inducida/efectos adversos , Infusiones Parenterales , Cuidados Intraoperatorios , Metástasis de la Neoplasia , Recurrencia Local de Neoplasia , Ensayos Clínicos Controlados Aleatorios como Asunto , Neoplasias Gástricas/mortalidad , Análisis de SupervivenciaRESUMEN
BACKGROUND: We carry out a meta-analysis to evaluate the effectiveness and safety of laparoscopy-assisted gastrectomy (LAG) versus open gastrectomy for resectable gastric cancer. METHODS: We searched EMBASE, the Cochrane Library, PubMed, Science Citation Index (SCI), Chinese biomedicine literature database to identify randomized controlled trials (RCTs) from their inception to April 2012. Meta-analyses were performed using RevMan 5.0 software. It was in line with the preferred reporting items for systematic reviews and meta-analyses statement. The quality of evidence was assessed by GRADEpro 3.6. RESULTS: Eight RCTs totaling 784 patients were analyzed. Compared with open gastrectomy group, no significant differences were found in postoperative mortality (OR = 1.49; 95 % CI 0.29-7.79), anastomotic leakage (OR = 1.02; 95 % CI 0.24-4.27) , overall mean number of harvested lymph nodes [weighed mean difference (MD) = -3.17; 95 % CI -6.39 to 0.05]; the overall postoperative complication morbidity (OR = 0.54; 95 % CI 0.36-0.82), estimated blood loss (MD = -107.23; 95 % CI -148.56 to -65.89,) frequency of analgesic administration (MD = -1.69; 95 % CI -2.18 to -1.21, P < 0.00001), incidence of pulmonary complications (OR = 0.43, 95 % CI 0.20-0.93, P = 0.03) were significantly less in LAG group; LAG had shorter time to start first flatus (MD = -0.23; 95 % CI -0.41 to -0.05) and decreased hospital stay (MD = -1.72; 95 % CI -3.40 to 0.04), but, LAG still had longer operation time (MD = 76.70; 95 % CI 51.54-101.87). CONCLUSIONS: On the basis of this meta-analysis we conclude that although LAG was still a time-consuming and technically dependent procedure, it has the advantage of better short-term outcome. Long term survival data from other studies are urgently needed to estimate the survival benefit of this technique.
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Gastrectomía/métodos , Laparoscopía , Neoplasias Gástricas/cirugía , Analgésicos/uso terapéutico , Fuga Anastomótica , Pérdida de Sangre Quirúrgica , Utilización de Medicamentos , Humanos , Tiempo de Internación , Escisión del Ganglio Linfático , Tempo Operativo , Complicaciones Posoperatorias , Ensayos Clínicos Controlados Aleatorios como AsuntoRESUMEN
BACKGROUND: Advanced non-small cell lung cancer (NSCLC) is characterized by poor treatment efficacy and short survival time. Clinical trials have shown that the combination of chemotherapy with thermotherapy exhibits strong efficacy. We performed this meta-analysis to evaluate the clinical efficacy and safety of gemcitabine plus cisplatin (GP) and paclitaxel plus cisplatin (TP) combined with thermotherapy in the treatment of NSCLC, as well as to provide reference for clinical practice and future research. METHODS: We searched international (Cochrane Library, PubMed, and EMBASE) and Chinese (CBM, CNKI, VIP and Wanfang) databases for relevant articles and imported other retrievable sources, such as tracing-related references. We also corresponded with other authors to obtain certain inaccessible information. Data from all relevant randomized controlled trials (RCT) were collected to compare GP or TP thermochemotherapy with GP or TP chemotherapy alone. The quality of the included studies was assessed by adequate outcome-based standards and clinical circumstances. The meta-analysis was conducted using RevMan 5.1. RESULTS: Fifteen RCTs involving 952 patients were included in this meta-analysis. The results showed that the thermochemotherapy group had higher rates of improvement in quality of life (OR=3.84, 95%CI: 2.61-5.64), survival at 1 year (HR=1.94, 95%CI: 1.21-3.12), and survival at 2 years (HR=2.05, 95%CI: 1.18-3.58) compared with the chemotherapy group, with the differences between them being significant. However, these groups did not differ in other indicators of treatment effectiveness, such as myelosuppression, alimentary canal reactions, hepatic lesions, and diarrhea. CONCLUSIONS: Compared with chemotherapy alone, thermochemotherapy can improve survival rates and curative effects, ameliorate symptoms, and enhance the quality of life of patients with advanced NSCLC, and it has an acceptable safety profile. The results of this meta-analysis warrant further investigation with a larger sample size and using a high-quality RCT design.
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Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Desoxicitidina/análogos & derivados , Hipertermia Inducida/métodos , Neoplasias Pulmonares/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Carcinoma de Pulmón de Células no Pequeñas/patología , Cisplatino/efectos adversos , Cisplatino/uso terapéutico , Desoxicitidina/efectos adversos , Desoxicitidina/uso terapéutico , Humanos , Neoplasias Pulmonares/patología , Paclitaxel , Seguridad , Taxoides/efectos adversos , Taxoides/uso terapéutico , GemcitabinaRESUMEN
OBJECTIVE: Tissue factor (TF) is expressed abnormally in certain types of tumor cells, closely related to invasion and metastasis. The aim of this study was to construct a human gastric cancer cell line SGC7901 stably-transfected with human TF, and observe effects on oxaliplatin-dependent inhibition of invasion and the apoptosis induction. METHODS: The target gene TF was obtained from human placenta by nested PCR and introduced into the human gastric cell line SGC7901 through transfection mediated by lipofectamine. Stably-transfected cells were screened using G418. Examples successfully transfected with TF-pcDNA3 recombinant (experimental group), and empty vector pcDNA3 (control group) were incubated with oxaliplatin. Transwell chambers were used to show change in invasive ability. Caspase-3 activity was detected using a colorimetric method and annexin-V/PI double- staining was applied to detect apoptosis. RESULTS: We generated the human gastric cancer cell line SGC7901/TF successfully, expressing TF stably and efficiently. Compared with the control group, invasion increased, whereas caspase-3 activity and apoptosis rate were decreased in the experimental group. CONCLUSION: TF can enhance the invasive capacity of gastric cancer cells in vitro. Its increased expression may reduce invasion inhibition and apoptosis-inducing effects of oxaliplatin and therefore may warrant targeting for improved chemotherapy.
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Antineoplásicos/farmacología , Apoptosis/efectos de los fármacos , Movimiento Celular/efectos de los fármacos , Compuestos Organoplatinos/farmacología , Neoplasias Gástricas/tratamiento farmacológico , Neoplasias Gástricas/patología , Tromboplastina/metabolismo , Western Blotting , Caspasa 3/metabolismo , Adhesión Celular/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Femenino , Citometría de Flujo , Humanos , Invasividad Neoplásica , Oxaliplatino , Placenta/metabolismo , Embarazo , ARN Mensajero/genética , Reacción en Cadena en Tiempo Real de la Polimerasa , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Neoplasias Gástricas/metabolismo , Tromboplastina/genética , Células Tumorales CultivadasRESUMEN
OBJECTIVE: To evaluate the effect of ephedrine on intubation conditions (ICs) one minute after anesthesia induction using propofol and rocuronium. METHODS: PubMed, EMbase, The Cochrane Library, ISI Web of Knowledge, Chinese Biomedical Literature Database, Google Scholar, and other databases were searched from inception to September 2012 to collect relevant randomized clinical trials (RCTs). We evaluated the risk of bias of the included studies by the Cochrane Collaboration's risk of bias tool and analyzed the data using RevMan 5.1. As the outcomes, excellent ICs, clinically acceptable ICs and side effects were evaluated with risk ratios (RRs). RESULTS: Five RCTs involving 396 patients were identified. The results of the meta-analysis demonstrated that ephedrine increased the rate of excellent ICs (RR = 2.40, 95% CI 1.89 to 3.05), but had no effects on the rate of clinically acceptable ICs (RR = 1.15, 95% CI 0.93 to 1.42) and the incidence of side effects (RR = 2.00, 95% CI 0.19 to 21.36). Besides, the results of subgroup analysis showed that both low dose and high dose of ephedrine increased the rate of excellent ICs, but only low dose increased the rate of clinically acceptable ICs. The results of sensitive analysis showed that both favored ephedrine (excellent ICs: RR = 2.54, 95% CI 1.69 to 3.83; clinically acceptable ICs: RR = 1.21, 95% CI 1.07 to 1.38). CONCLUSION: Ephedrine, without extra side effects, created superior ICs one minute after anesthesia induction using propofol and rocuronium, and low dose (i.e., 70-100 µg/kg) is recommended as the possible optimal dose.
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Adrenérgicos/administración & dosificación , Androstanoles/administración & dosificación , Anestésicos Intravenosos/administración & dosificación , Efedrina/administración & dosificación , Intubación Intratraqueal/métodos , Fármacos Neuromusculares no Despolarizantes/administración & dosificación , Propofol/administración & dosificación , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Humanos , Modelos Estadísticos , Evaluación de Resultado en la Atención de Salud , Ensayos Clínicos Controlados Aleatorios como Asunto , RocuronioRESUMEN
Hydrogen sulfide (H2S), the colorless gas with the smell of rotten eggs, has been regarded as a novel gaseous signaling molecule. Although H2S has been proved been involved into the cardiovascular functions, the cardiovascular functions of H2S within the nucleus tractus solitarii (NTS) are not clear. Unilateral microinjection of NaHS (2 to 200 pmol), a H2S donor, into the NTS caused transient and dose-dependent hypotension and bradycardia (P<0.01). Microinjection of CBS allosteric activator S-ademetionine (SAM) into the NTS also produced significant decreases in BP (from 101 +/- 8 to 82 +/- 7 mmHg, P < 0.01) and HR (from 469 +/- 16 to 449 +/- 14 bpm, P<0.01), which was very similar to those of NaHS. Pretreatment with hydroxylamine, a CBS inhibitor, failed to affect the cardiovascular functions of intra-NTS NaHS. However, pretreatment with glibenclamide (10 nmol), a KATP channel blocker, eliminated the on BP (from -23 +/- 4 to -5 +/- 1 mmHg, P<0.01) and HR (from -24 +/- 2 to -5 +/- 1 bpm, P<0.01) by 78% and 79%, respectively, of intra-NTS NaHS (20 pmol). Likewise, pretreatment with kynurenic acid (Kyn, 5 nmol) also attenuated the effects of NaHS on BP (from -29 +/- 3 to -12 +/- 3 mmHg, P<0.01) and HR (from -19 +/- 2 to -9 +/- 2 bpm, P<0.01) by 59% and 53%, respectively, of intra-NTS NaHS (20 pmol). These data support the hypothesis that endogenous H2S produces cardiovascular inhibition functions in the NTS, mainly mediated by KATP channels regulation or/and glutamate receptors.
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Sistema Cardiovascular/efectos de los fármacos , Sulfuro de Hidrógeno/toxicidad , Canales KATP/efectos de los fármacos , Receptores de Glutamato/efectos de los fármacos , Núcleo Solitario/patología , Anestesia , Animales , Cistationina betasintasa/antagonistas & inhibidores , Inhibidores Enzimáticos/farmacología , Gliburida/farmacología , Sulfuro de Hidrógeno/administración & dosificación , Hidroxilamina/farmacología , Masculino , Microinyecciones , Bloqueadores de los Canales de Potasio/farmacología , Ratas , Ratas Sprague-Dawley , S-Adenosilmetionina/farmacología , Núcleo Solitario/anatomía & histologíaRESUMEN
Several studies have evaluated the possible association between antioxidants vitamins or selenium supplement and the risk of prostate cancer, but the evidence is still inconsistent. We systematically searched PubMed, EMBASE, the Cochrane Library, Science Citation Index Expanded, Chinese biomedicine literature database, and bibliographies of retrieved articles up to January 2009. We included 9 randomized controlled trials with 165,056 participants; methodological quality of included trials was generally high. Meta-analysis showed that no significant effects of supplementation with beta-carotene (RR 0.97, 95% CI 0.90-1.05) (3 trials), vitamin C (RR 0.98, 95% CI 0.91-1.06) (2 trials), vitamin E (RR 0.96, 95% CI 0.85-1.08) (5 trials), and selenium (RR 0.78, 95% CI 0.41-1.48) (2 trials)versus placebo on prostate cancer incidence. The mortality of prostate cancer did not differ significantly by supplement of beta-carotene (RR 1.19, 95% CI 0.87 -1.65) (1 trial), vitamin C (RR 1.45, 95%CI 0.92-2.29) (1 trial), vitamin E (RR 0.85, 95%CI 0.58-1.24) (2 trials), and selenium (RR 2.98, 95% CI 0.12-73.16) (1 trial). Our findings indicate that antioxidant vitamins and selenium supplement did not reduce the incidence and mortality of prostate cancer, these data provide no support for the use of these supplements for the prevention of prostate cancer.
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Antioxidantes/administración & dosificación , Suplementos Dietéticos , Neoplasias de la Próstata/prevención & control , Selenio/administración & dosificación , Adulto , Anciano , Antioxidantes/efectos adversos , Ácido Ascórbico/administración & dosificación , Ácido Ascórbico/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Neoplasias de la Próstata/epidemiología , Ensayos Clínicos Controlados Aleatorios como Asunto , Selenio/efectos adversos , Vitamina E/administración & dosificación , Vitamina E/efectos adversos , beta Caroteno/administración & dosificación , beta Caroteno/efectos adversosRESUMEN
Rotavirus is the main cause of severe, dehydrating diarrhoea in infants and young children. In industrialized countries, pediatric rotavirus gastroenteritis (PRGE) is responsible for high morbidity, particularly among children under 3 years of age attending day care centers (DCCs). The objectives of this study were to estimate the incidence, management and cost of PRGE in DCCs. We also described the nature of group A rotavirus genotypes. This study also compared the performance of different diagnostic techniques. The study was conducted from November 2004 to May 2005. Children aged less than 36 months, attending a participating DCC at least 4 times a week were included in the study. For any episode of acute gastroenteritis (AGE), defined as the occurrence of 3 or more watery or looser than normal stools and/or forceful vomiting within a 24 h period, a fecal specimen was tested by Elisa test IDEIA Rotavirus (Dako) and the immunochromatographic test VIKIA Rota-Adeno (BioMérieux). Sequencing by RT-PCR was performed to identify the rotavirus genotype. Among the 41 DCCs contacted, 18 (43.9%) agreed to participate. Out of 966 children, 547 attended a participating DCC at least 4 times a week and met the inclusion criteria. A total of 302 were included in the study. The clinical diagnosis of AGE was confirmed and validated, by the Elisa test, in 63 fecal specimens, of which 29 (46%) were positive for rotavirus antigen, with a predominance of P[8]G9 (86%). Our results showed good sensitivity and specificity for the VIKIA and Elisa methods when compared to RT-PCR. Among the PRGE cases, 36% were male and the median age was 12.2 months. The first rotavirus case was observed in December 2004 with a peak in January 2005. The incidence of PRGE cases was 2.2 [1.4-3.0] per 100 child-months in children aged less than 36 months of age, increasing to 3.4 per 100 child-months among children aged less than 24 months. Vomiting (P<0.0005) and behavior modification (P<0.001) were significantly more frequent for PRGE cases. A total of 85.7% PRGE cases sought medical attention. In 58.3% of these cases, at least one parent had to miss work for a mean duration of 2.1 days. The total cost of rotavirus cases seeking medical attention (with or without prescribed medication, days off work for parents or additional diaper consumption) was estimated at 275.54 euros/case. The PRGE incidence rate is similar to that estimated in European studies conducted in DDC. These findings confirm that rotavirus transmission occurs not only in DCCs but within the family. This is the first study to give an estimate of the incidence and the cost of rotavirus infection in DCCs in France.