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Background: This study aims to elucidate the association between glycemia and the occurrence of multi-vessel lesions in participants undergoing coronary angiography. Methods: We analyzed 2,533 patients with coronary artery disease who underwent coronary angiography. Of these, 1,973 patients, identified by the endpoint of multi-vessel lesions, were examined using univariate and multivariate logistic regression analyses to determine the relationship between glycemia levels and multi-vessel lesion occurrence. Results: The analysis included 1,973 participants, among whom 474 patients were identified with coronary multi-vessel lesions. Univariate logistic regression analysis demonstrated a positive correlation between glycemia and the occurrence of coronary multi-vessel lesions (OR 1.04; 95% CI 1.01-1.08; p = 0.02). The adjusted model indicated that for each unit increase in glycemia, the risk of developing coronary multi-vessel lesions increased by 4%, showing a significant correlation (p < 0.05). Subgroup analyses revealed that the impact of glycemia on multi-vessel lesions in patients with PCI varied according to gender, age, and smoking status, with the effect being more pronounced in men, older patients, and smokers. Conclusion: Our findings establish a significant association between glycemia and the incidence of multi-vessel lesions, particularly pronounced in male patients, individuals over 45, and smokers.
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Myocardial infarction (MI) is a kind of cardiovascular diseases with high morbidity and mortality. Poricoic acid A (PAA) is the main active substance in Poria cocos, which has been discovered to exhibit an ameliorative role in the progression of many diseases. However, no report has been focused on the regulatory effects of PAA on MI progression. In this study, at first, oxygen glucose deprivation (OGD) treatment was performed in human cardiac microvascular endothelial cells (HCMECs) to mimic MI cell model. Our findings demonstrated that cell proliferation was reduced post OGD treatment, but which was reversed by PAA treatment. Moreover, PAA suppressed cell apoptosis in OGD-triggered HCMEC cells. Next, it revealed that PAA induced autophagy in OGD-treated HCMEC cells through enhancing LC3-II/LC3-I level and reducing P62 level. In addition, PAA strengthened the angiogenesis ability and migration ability in OGD-induced HCMEC cells. Lastly, it was uncovered that PAA modulated the AMPK/mTOR signaling pathway through affecting the p-mTOR/mTOR and p-AMPK/AMPK levels. In conclusion, PAA can promote angiogenesis and myocardial regeneration after MI by inducing autophagy through modulating the AMPK/mTOR pathway. This work suggested that PAA may be a potential and useful drug for MI treatment.
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Autofagia , Infarto del Miocardio , Neovascularización Fisiológica , Transducción de Señal , Autofagia/efectos de los fármacos , Infarto del Miocardio/patología , Infarto del Miocardio/metabolismo , Infarto del Miocardio/tratamiento farmacológico , Humanos , Neovascularización Fisiológica/efectos de los fármacos , Transducción de Señal/efectos de los fármacos , Serina-Treonina Quinasas TOR/metabolismo , Células Endoteliales/metabolismo , Células Endoteliales/efectos de los fármacos , Regeneración/efectos de los fármacos , Miocardio/patología , Miocardio/metabolismo , Proliferación Celular/efectos de los fármacos , Glucosa/deficiencia , Glucosa/metabolismo , Movimiento Celular/efectos de los fármacos , Proteínas Quinasas Activadas por AMP/metabolismo , Apoptosis/efectos de los fármacos , AngiogénesisAsunto(s)
Estimulación Encefálica Profunda , Mucolipidosis , Mioclonía , Humanos , Mioclonía/terapiaRESUMEN
OBJECTIVE: To explore the effect of electroacupuncture (EA) at "Shuigou"(GV6) and "Baihui"(GV20) on autophagy of hippocampal neurons in cerebral ischemia-reperfusion (I/R) injury rats. METHODS: Forty-eight healthy male SD rats were randomly divided into sham operation, model and EA groups, with 16 rats in each group. The rat model of cerebral I/R injury was established by occlusion of the middle cerebral artery (MCAO). Rats of the EA group received EA at GV26 and GV20 for 20 min, once daily for 5 days. The neurological function of rats in each group was evaluated by Longa neurological function score. The cerebral infarction volume was measured by TTC staining. The levels of IL-6, IL-18 and TNF-α in cerebrospinal fluid were detected by ELISA. Real-time PCR and Western blot were respectively used to detect the expressions of autophagy-related proteins AMPK, Beclin-1, VPS34 and LC3B. RESULTS: Compared with the sham operation group, neurological function scores of rats in the model group were significantly increased (P<0.01); the volume of cerebral infarction was significantly increased (P<0.01); the contents of IL-6, IL-18 and TNF-α in cerebrospinal fluid were increased (P<0.01, P<0.05); the mRNA expression levels of AMPK, Beclin-1, VPS34 and LC3B were significantly increased (P<0.01); the protein expressions of AMPK, Beclin-1, VPS34 and the ratio of LC3B-â ¡/LC3B-â were increased (P<0.01, P<0.05). After intervention and in comparison with the model group, the neurological function scores were decreased (P<0.05); the cerebral infarct volume were decreased (P<0.05); the contents of IL-6, IL-18 and TNF-α in cerebrospinal fluid were decreased (P<0.05); the mRNA expressions of AMPK, Beclin-1, VPS34 and LC3B were significantly decreased (P<0.01); the protein expressions of AMPK, Beclin-1, VPS34 and the ratio of LC3B-â ¡/LC3B-â were decreased (P<0.05, P<0.01). CONCLUSION: EA can improve the neurological function and alleviate the degree of nerve injury in rats with cerebral I/R injury, which may be related to inhibiting the autophagy level of hippocampal neurons.
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Electroacupuntura , Daño por Reperfusión , Proteínas Quinasas Activadas por AMP , Animales , Autofagia/genética , Beclina-1 , Infarto Cerebral/genética , Infarto Cerebral/terapia , Interleucina-18/genética , Interleucina-6 , Masculino , Neuronas , ARN Mensajero , Ratas , Ratas Sprague-Dawley , Daño por Reperfusión/genética , Daño por Reperfusión/terapia , Factor de Necrosis Tumoral alfa/genéticaRESUMEN
Background: Glioblastoma multiforme (GBM) is the most common malignant tumor in the central nervous system with poor prognosis and unsatisfactory therapeutic efficacy. Considering the high correlation between tumors and angiogenesis, we attempted to construct a more effective model with angiogenesis-related genes (ARGs) to better predict therapeutic response and prognosis. Methods: The ARG datasets were downloaded from the NCBI-Gene and Molecular Signatures Database. The gene expression data and clinical information were obtained from TCGA and CGGA databases. The differentially expressed angiogenesis-related genes (DE-ARGs) were screened with the R package "DESeq2". Univariate Cox proportional hazards regression analysis was used to screen for ARGs related to overall survival. The redundant ARGs were removed by least absolute shrinkage and selection operator (LASSO) regression analysis. Based on the gene signature of DE-ARGs, a risk score model was established, and its effectiveness was estimated through Kaplan-Meier analysis, ROC analysis, etc. Results: A total of 626 DE-ARGs were explored between GBM and normal samples; 31 genes were identified as key DE-ARGs. Then, the risk score of ARG signature was established. Patients with high-risk score had poor survival outcomes. It was proved that the risk score could predict some medical treatments' response, such as temozolomide chemotherapy, radiotherapy, and immunotherapy. Besides, the risk score could serve as a promising prognostic predictor. Three key prognostic genes (PLAUR, ITGA5, and FMOD) were selected and further discussed. Conclusion: The angiogenesis-related gene signature-derived risk score is a promising predictor of prognosis and treatment response in GBM and will help in making appropriate therapeutic strategies.
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gutMGene (http://bio-annotation.cn/gutmgene), a manually curated database, aims at providing a comprehensive resource of target genes of gut microbes and microbial metabolites in humans and mice. Metagenomic sequencing of fecal samples has identified 3.3 × 106 non-redundant microbial genes from up to 1500 different species. One of the contributions of gut microbiota to host biology is the circulating pool of bacterially derived small-molecule metabolites. It has been estimated that 10% of metabolites found in mammalian blood are derived from the gut microbiota, where they can produce systemic effects on the host through activating or inhibiting gene expression. The current version of gutMGene documents 1331 curated relationships between 332 gut microbes, 207 microbial metabolites and 223 genes in humans, and 2349 curated relationships between 209 gut microbes, 149 microbial metabolites and 544 genes in mice. Each entry in the gutMGene contains detailed information on a relationship between gut microbe, microbial metabolite and target gene, a brief description of the relationship, experiment technology and platform, literature reference and so on. gutMGene provides a user-friendly interface to browse and retrieve each entry using gut microbes, disorders and intervention measures. It also offers the option to download all the entries and submit new experimentally validated associations.
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Bacterias/genética , Bases de Datos Genéticas , Metaboloma , Metagenoma , Microbiota/genética , Programas Informáticos , Animales , Bacterias/clasificación , Bacterias/metabolismo , Heces/microbiología , Microbioma Gastrointestinal/genética , Humanos , Internet , Redes y Vías Metabólicas/genética , Ratones , Filogenia , ARN Ribosómico 16S/genéticaRESUMEN
Endoplasmic reticulum stress (ERS) is a cellular defensive response to restore homeostasisand reduce the protein load. Over-activation of ERS can induce cell differentiation, proliferation, apoptosis, and autophagy. MicroRNAs (miRNAs) are endogenous non-coding RNAs (ncRNAs) thatregulate the expression of key proteins and genes in the ERS signaling pathway through post-transcriptional action. Meanwhile, activated ERS signaling pathway can indirectly regulate the expressionand function of target genes by decreasing miRNA stability. Based on a brief introduction of ERS classicalsignaling pathways, this paper further elaborated how microRNAs regulate ERS signaling pathways topromote apoptosis and proliferation, and what effect they would have on the expression profile of diseasesbased on this association. We also summarize the regulation of ERS on miRNAs expression and thecurrent research status. The mutual regulation between the two could provide a new idea for the follow-upresearch on the therapeutic targets of diseases.
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BACKGROUND: Hepatocellular carcinoma (HCC) is a highly malignant tumor with a particularly poor prognosis. The tumor microenvironment (TME) is closely associated with tumorigenesis, progression, and treatment. However, the relationship between TME genes and HCC patient prognosis is poorly understood. METHODS: In this study, we identified two prognostic subtypes based on the TME using data from The Cancer Genome Atlas and Gene Expression Omnibus. The Microenvironment Cell Populations-counter method was used to evaluate immune cell infiltration in HCC. Differentially expressed genes between molecular subtypes were calculated with the Limma package, and clusterProfiler was used for Gene Ontology and Kyoto Encyclopedia of Genes and Genomes functional enrichment analyses to identify genes related to the independent subtypes. We also integrated mRNA expression data into our bioinformatics analysis. RESULTS: We identified 4227 TME-associated genes and 640 genes related to the prognosis of HCC. We defined two major subtypes (Clusters 1 and 2) based on the analysis of TME-associated gene expression. Cluster 1 was characterized by increased expression of immune-associated genes and a worse prognosis than Cluster 2. CONCLUSIONS: The identification of these HCC subtypes based on the TME provides further insight into the molecular mechanisms and prediction of HCC prognosis.
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Carcinoma Hepatocelular , Neoplasias Hepáticas , Carcinoma Hepatocelular/genética , Perfilación de la Expresión Génica , Regulación Neoplásica de la Expresión Génica , Humanos , Neoplasias Hepáticas/genética , Pronóstico , Microambiente Tumoral/genéticaRESUMEN
To effectively solve the serious impact of high oil in the kitchen wastewater on the downstream treatment process, an excellent oil-degrading strain Aeromonas allosaccarophila CY-01 was immobilized to prepare Chitosan-Aeromonas pellets (CH-CY01) by using chitosan as a carrier. Oil degradation condition and efficiency of CH-CY01 pellets were assessed. The growth of immobilized CH-CY01 was almost unaffected, and the maximum degradation rate of soybean oil was 89.7%. Especially at 0.5% NaCl concentration, oil degradation efficiency of CH-CY01 was increased by 20% compared with free cells. In the presence of a surfactant (sodium dodecylbenzene sulfonate) at 1 mg/L, the degradation efficiency of oil by CH-CY01 was increased by 40%. Moreover, using the high-oil catering wastewater as the substrate, more than 80% of the solid oil was degraded with 1% (V/V) CH-CY01 pellets treatment for 7 days, significantly higher than that of free cells. In summary, immobilized CH-CY01 significantly improved the efficiency of oil degradation.
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Aeromonas , Quitosano , Tensoactivos , Aguas ResidualesRESUMEN
MiR-134-5p was found to have potential diagnostic value for myocardial infarction (MI), but its biological role in MI has not been reported. In this study, MI mouse model was established. Quantitative real-time PCR (qRT-PCR) and western blot were used to measure the expression of miR-134-5p, lysine demethylase 2A (KDM2A), and vascular endothelial growth factor (VEGF). Dual-Luciferase reporter (DLR) assay was used to explore the relationship between miR-134-5p and KDM2A. The influence of miR-134-5p on cardiomyocytes apoptosis was detected using methyl thiazolyl tetrazolium (MTT) assay. The results revealed that miR-134-5p was highly expressed in infarction tissues of MI mice. Knockdown of miR-134-5p inhibited hypoxia/reoxygenation (H/R) -induced cardiomyocyte apoptosis. In addition, KDM2A was the target gene of miR-134-5p and negatively regulated by miR-134-5p. The promotion effect on the protein level of KDM2A and VEGF induced by miR-134-5p inhibitor can be reversed by shKDM2A in cardiomyocytes. Further, silencing of miR-134-5p promoted myocardial angiogenesis and inhibited myocardial apoptosis via upregulating KDM2A in MI mice. Taken together, our research revealed that knockdown of miR-134-5p increased KDM2A expression, thereby suppressing myocardial apoptosis and promoting myocardial angiogenesis.
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Histona Demetilasas con Dominio de Jumonji/metabolismo , MicroARNs/metabolismo , Infarto del Miocardio/metabolismo , Animales , Apoptosis , Histona Demetilasas con Dominio de Jumonji/genética , Masculino , Ratones Endogámicos C57BL , Neovascularización FisiológicaRESUMEN
Background@#Spinal muscular atrophy (SMA) is caused by homozygous deletion or compound heterozygous mutation of survival motor neuron gene 1 (SMN1), which is the key to diagnose SMA. The study was to establish and evaluate a new diagnostic method for SMA.@*Methods@#A total of 1494 children suspected with SMA were enrolled in this study. Traditional strategy, including multiplexed ligation-dependent probe amplification (MLPA) and TA cloning, was used in 1364 suspected SMA children from 2003 to 2014, and the 130 suspected SMA children were tested by a new strategy from 2015 to 2016, who were also verified by MLPA combined with TA cloning. The SMN1 and SMN2 were simultaneously amplified by polymerase chain reaction using the same primers. Mutation Surveyor software was used to detect and quantify the SMN1 variants by calculating allelic proportions in Sanger sequencing. Finally, turnaround time and cost of these two strategies were compared.@*Results@#Among 1364 suspected SMA children, 576 children had SMN1 homozygous deletion and 27 children had SMN1 compound heterozygous mutation. Among the 130 cases, 59 had SMN1 homozygous deletion and 8 had heterozygous deletion: the SMN1-specific peak proportion on exon 7 was 34.6 ± 1.0% and 25.5 ± 0.5%, representing SMN1:SMN2 to be 1:2 and 1:3, respectively. Moreover, five variations, including p.Ser8Lysfs *23 (in two cases), p.Leu228*, p.Pro218Hisfs *26, p.Ser143Phefs*5, and p.Tyr276His, were detected in 6/8 cases with heterozygous deletion, the mutant allele proportion was 31.9%, 23.9%, 37.6%, 32.8%, 24.5%, and 23.6%, which was similar to that of the SMN1-specific site on exon 7, suggesting that those subtle mutations were located in SMN1. All these results were consistent with MLPA and TA cloning. The turnaround times of two strategies were 7.5 h and 266.5 h, respectively. Cost of a new strategy was only 28.5% of the traditional strategy.@*Conclusion@#Sanger sequencing combined with Mutation Surveyor analysis has potential application in SMA diagnosis.
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Adolescente , Niño , Preescolar , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Atrofia Muscular Espinal , Diagnóstico , Genética , Mutación , Análisis de Secuencia de ADN , Métodos , Proteína 1 para la Supervivencia de la Neurona Motora , Genética , Proteína 2 para la Supervivencia de la Neurona Motora , GenéticaRESUMEN
Objective To understand the status of healthcare-associated infection(HAI)management in traditional Chinese medicine hospitals as well as integrated traditional Chinese and Western medicine hospitals in Fujian Pro-vince,analyze the existing problems and weak links,and put forward corresponding improvement measures.Methods A questionnaire was designed through literature and expert consultation,from March to April 2016,42 secondary and above traditional Chinese medicine hospitals as well as integrated traditional Chinese and Western medicine hos-pitals in 8 cities of Fujian Province were conducted on-site investigation,data were analyzed.Results A total of 42 hospitals participated in the investigation,92.86% were traditional Chinese medicine hospitals,7.14% were inte-grated traditional Chinese and Western medicine hospitals;all hospitals set up HAI management committees and HAI management groups of clinical departments,there were 100 HAI management professionals(66 were full-time,34 were part-time),nursing staff accounted for 63.00%,junior college and undergraduate personnel accoun-ted for 84.00%,staff with intermediate and senior professional titles accounted for 79.00%.There were significant differences in academic disciplines and education levels among administrators in secondary and tertiary hospitals(P<0.05). All hospitals carried out HAI case surveillance,only 2.38% achieved HAI informational software monito-ring,83.33% carried out comprehensive and targeted monitoring,42.86%,71.43%,and 80.95% of hospitals car-ried out targeted monitoring on multidrug-resistant organisms,surgical site infection,and intensive care unit respec-tively.Conclusion The environment of majority of Chinese medicine hospitals in Fujian Province improved signifi-cantly,organizations of HAI management is rational,staffing and quality of HAI management personnel is imbal-anced,HAI monitoring is still at preliminary stage,lack information management,HAI management in key depart-ments is not optimistic.
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BACKGROUND: A proportion of patients who receive cardiac resynchronization therapy with defibrillator (CRT-D) live to receive a second generator. Controversy exists on whether an implantable cardioverter-defibrillator (ICD) should be offered to patients who have normalized or near-normalized left ventricular ejection fraction (LVEF) at the time of generator replacement (GR). OBJECTIVE: The purpose of this study was to evaluate incidence of appropriate ICD therapy after CRT-D GR. METHODS: This series involved 1026 consecutive patients who underwent CRT-D implant between January 1, 2002 and December 31, 2012. Echocardiography was assessed before the initial device implant and before GR. ICDs were monitored at our device clinic in person or remotely, or both. RESULTS: Of the cohort, 227 patients (22.1%) underwent CRT-D GR at our institution. Approximately 48% of the patients who received new CRT-D generators were no longer meeting the guidelines indication for ICD use at the time of GR. These patients received subsequent appropriate ICD therapies at a significantly lower rate than those with LVEF <35% (12% vs 35%; P < .001). Of these patients, 47 (20.7%) had LVEF improvement to ≥50% at the time of GR. ICD therapy for ventricular arrhythmia in the ischemic group was 18.2%, while no patient in the nonischemic group received ICD therapy from the second generator after GR. CONCLUSION: Improvement in LVEF after CRT-D GR is associated with significantly reduced incidence of appropriate ICD therapy. Ventricular arrhythmia is less likely to develop with normalized LVEF in nonischemic cardiomyopathy.
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Desfibriladores Implantables , Insuficiencia Cardíaca/terapia , Prevención Primaria/métodos , Recuperación de la Función , Volumen Sistólico/fisiología , Taquicardia Ventricular/prevención & control , Función Ventricular Izquierda/fisiología , Anciano , Ecocardiografía , Diseño de Equipo , Femenino , Estudios de Seguimiento , Insuficiencia Cardíaca/diagnóstico , Insuficiencia Cardíaca/fisiopatología , Humanos , Incidencia , Masculino , Minnesota/epidemiología , Estudios Retrospectivos , Factores de Riesgo , Tasa de Supervivencia/tendencias , Taquicardia Ventricular/epidemiología , Taquicardia Ventricular/fisiopatologíaRESUMEN
Thrombolysis has been a standard treatment for ischemic stroke. However, only 2-7% patients benefit from it because the thrombolytic agent has to be injected within 4.5 h after the onset of symptoms to avoid the increasing risk of intracerebral hemorrhage. As the only clinically approved neuroprotective drug, edaravone (EDV) rescues ischemic brain tissues by eradicating over-produced reactive oxygen species (ROS) without the limitation of therapeutic time-window. However, EDV's short circulation half-life and inadequate cerebral uptake attenuate its therapeutic efficacy. Here we developed an EDV-encapsulated agonistic micelle (EDV-AM) to specifically deliver EDV into brain ischemia by actively tuning blood-brain barrier (BBB) permeability. The EDV-AM actively up-regulated endothelial monolayer permeability in vitro. HPLC studies showed that EDV-AM delivered more EDV into brain ischemia than free EDV after intravenous injection. Magnetic resonance imaging also demonstrated that EDV-AM more rapidly salvaged ischemic tissue than free EDV. Diffusion tensor imaging indicated the highest efficiency of EDV-AM in accelerating axonal remodeling in the ipsilesional white matter and improving functional behaviors of ischemic stroke models. The agonistic micelle holds promise to improve the therapeutic efficiency of ischemic stroke patients who miss the thrombolytic treatment.
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Antipirina/análogos & derivados , Barrera Hematoencefálica/efectos de los fármacos , Isquemia Encefálica/tratamiento farmacológico , Depuradores de Radicales Libres/administración & dosificación , Micelas , Fármacos Neuroprotectores/administración & dosificación , Permeabilidad/efectos de la radiación , Animales , Antipirina/administración & dosificación , Antipirina/farmacocinética , Isquemia Encefálica/diagnóstico por imagen , Células Cultivadas , Edaravona , Células Endoteliales/efectos de los fármacos , Depuradores de Radicales Libres/farmacocinética , Imagen por Resonancia Magnética , Ratones Endogámicos ICR , Fármacos Neuroprotectores/farmacocinética , Resultado del TratamientoRESUMEN
Esophageal cancer (EC) is one of the most common cancers in China. The purpose of this study was to investigate the updated incidence rates and risk factors of EC in Nan'ao Island, where the EC incidence rate was chronically the highest in southern China. To calculate the annual incidence rate, data on 338 EC cases from Nan'ao Cancer Registry system diagnosed during 2005-2011 were collected. A case-control study was conducted to explore the EC risk factors. One hundred twenty-five alive EC patients diagnosed during 2005-2011 and 250 controls were enrolled into the case-control study. A pre-test questionnaire on demography, dietary factors, drinking water treatment, and behavioral factors was applied to collect information of all participants. The average EC incidence rates during 2005-2011 were 66.09/105, 94.62/105, 36.83/105 for both genders, males and females, respectively, in Nan'ao Island. The EC incidence rate in males was 2.40- to 4.55-fold higher than that in females in the period from 2006 to 2011 (P < 0.05). Considering the onset age, males tend to be much younger than females and reached peak incidence rate at a younger age (P < 0.05). Drinking water treatment by filter (odds ratio [OR] = 0.28, 95% confidence interval [95% CI] = 0.13-0.58) and fruit consumption (OR = 0.55, 95% CI = 0.32-0.94) reduced the risk for EC. On the contrary, the pickled vegetables consumption (OR = 2.64, 95% CI = 1.46-4.76) and liquor drinking (OR = 2.32, 95% CI = 1.21-4.44) increased the risk for EC. These results may be of importance for future research on EC etiology and prevention strategies.
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Adenocarcinoma/epidemiología , Consumo de Bebidas Alcohólicas/epidemiología , Carcinoma de Células Escamosas/epidemiología , Dieta/estadística & datos numéricos , Neoplasias Esofágicas/epidemiología , Adulto , Distribución por Edad , Anciano , Anciano de 80 o más Años , Estudios de Casos y Controles , China/epidemiología , Agua Potable , Femenino , Conservación de Alimentos , Frutas , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Factores Protectores , Factores de Riesgo , Distribución por Sexo , VerdurasRESUMEN
Objective To investigate the effect of arthroscopic debridement and meniscectomy in treatment of moderate or severe meniscus injury combined with knee osteoarthritis in early or middle stage. Methods 156 cases diagnosed with moderate or severe meniscus injury combined with knee osteoarthritis in early or middle stage were collected from October 2011 to October 2014. Lysholm knee score and preoperative examinations such as anteroposterior, lateral, axial radiographs, the standing full leg length X-ray film and MRI scan of the knee were recommended to definitively understand the osteoarthritis staging and meniscus injury grading. All patients were treated with arthroscopic debridement and meniscectomy. After operation, physical rehabilitation exercises and regular clinical follow-up were carried out as planned. The Lysholm knee score data from preoperation and terminal follow-up was statistical analyzed. Results No patient experienced any perioperative and postoperative complications. Statistical analysis showed that the Lysholm knee score of postoperation was significantly higher than that of preoperation [(87.3 ± 7.9) vs (67.5 ± 4.9), P < 0.05). Conclusion Arthroscopic debridement and meniscectomy in treatment of moderate or severe meniscus injury combined with knee osteoarthritis in early or middle stage, gains beneficial effects for its minimal invasion and quick recovery.
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AIMS: To explore the potential of a dendrimer nanoprobe labeled with cyclic arginine-glycine-aspartic acid pentapeptide (cRGDyK) as a magnetic resonance imaging (MRI) tracer to non-invasively differentiate the extent of liver fibrosis. METHODS: Synthetic dendrimer nanoprobes were labeled with cRGDyK (Den-RGD) to form a formulation of hepatic stellate cell (HSC)-specific MRI tracer. An MRI modality was employed to visualize hepatic Den-RGD deposition in a mouse model of liver fibrosis caused by thioacetamide treatment. RESULTS: Den-RGD bound to activated HSCs via integrin αvß3 receptors. The labeling of nanoprobes with cRGDyK increased their affinity to and accelerated their uptake by activated HSCs. Most of intravenously administrated Den-RGD nanoprobes deposited in the fibrotic areas, and the deposited amount was paralleled with the severity of liver fibrosis. Majority of cells taking-up Den-RGD was found to be activated HSCs in fibrotic livers. An MRI modality using Den-RGD as a tracer demonstrated that the relative hepatic T1-weighed MR signal value was increased in parallel with the severity of liver fibrosis. CONCLUSION: The extent of Den-RGD deposition reflects integrin αvß3 expression in activated HSCs, and Den-RGD appears to be a useful formulation of MRI tracer and may non-invasively and quantitatively assess the extent of liver fibrosis.
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Dendrímeros/química , Integrina alfaVbeta3/análisis , Cirrosis Hepática/diagnóstico por imagen , Hígado/diagnóstico por imagen , Péptidos Cíclicos/química , Animales , Células Estrelladas Hepáticas/patología , Hígado/patología , Cirrosis Hepática/patología , Imagen por Resonancia Magnética/métodos , Ratones , Ratones Endogámicos C57BLRESUMEN
A highly sensitive microfluidic system to capture circulating tumor cells from whole blood of cancer patients is presented. The device incorporates graphene oxide into a thermoresponsive polymer film to serve as the first step of an antibody functionalization chemistry. By decreasing the temperature, captured cells may be released for subsequent analysis.
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Separación Celular/métodos , Grafito/química , Neoplasias/patología , Células Neoplásicas Circulantes/patología , Óxidos/química , Polímeros/química , Temperatura , Anticuerpos/química , Supervivencia Celular , Humanos , Células MCF-7 , Microfluídica/métodos , Neoplasias/sangreRESUMEN
Clinical data and radiological findings of 78 patients with distal radial fractures,who underwent plain X-ray film and muhislice CT (MSCT) examinations,were retrospectively analyzed.Twenty nine associated carpal bone factures were detected on X-ray film in 21 cases;while 47 associated carpal bone fractures were detected on MSCT in 29 cases (P < 0.05).The missed diagnosis rate of X-ray was 38%.Results indicate that MSCT can significantly improve the detect rate,which should be recommended for diagnosis of associated carpal bone fractures in distal radial fractures.
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The microRNA (miRNA) regulation mechanisms associated with atherosclerosis are largely undocumented. Specific selection and efficient validation of miRNA regulation pathways involved in atherosclerosis development may be better assessed by contemporary microarray platforms applying cross-verification methodology. A screening platform was established using both miRNA and genomic microarrays. Microarray analysis was then simultaneously performed on pooled atherosclerotic aortic tissues from 10 Apolipoprotein E (apoE) knockout mice (apoE-/-) and 10 healthy C57BL/6 (B6) mice. Differentiated miRNAs were screened and cross-verified against an mRNA screen database to explore integrative mRNA-miRNA regulation. Gene set enrichment analysis was conducted to describe the potential pathways regulated by these mRNA-miRNA interactions. High-throughput data analysis of miRNA and genomic microarrays of knockout and healthy control mice revealed 75 differentially expressed miRNAs in apoE-/- mice at a threshold value of 2. The six miRNAs with the greatest differentiation expression were confirmed by real-time quantitative reverse-transcription PCR (qRT-PCR) in atherosclerotic tissues. Significantly enriched pathways, such as the type 2 diabetes mellitus pathway, were observed by a gene-set enrichment analysis. The enriched molecular pathways were confirmed through qRT-PCR evaluation by observing the presence of suppressor of cytokine signaling 3 (SOCS3) and SOCS3-related miRNAs, miR-30a, miR-30e and miR-19b. Cross-verified high-throughput microarrays are optimally accurate and effective screening methods for miRNA regulation profiles associated with atherosclerosis. The identified SOCS3 pathway is a potentially valuable target for future development of targeted miRNA therapies to control atherosclerosis development and progression.