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Objective: To analyze the characteristics of patients with chronic rhinosinusitis (CRS) in the South China region based on pathological tissue biomarkers for regional comparison. Methods: The study population consisted of CRS in-patients in the First Affiliated Hospital of Sun Yat-sen University from October 2019 to June 2022. Among all the 181 cases, 123 of them were male and 58 were female, with an average age of 40. Retrospectively collected clinical data included demographic information, preoperative symptom scores, preoperative endoscopic images, preoperative paranasal sinus computed tomography scanning images, and inflammatory serological features. In addition, 52 variables of pathological tissue biomarkers including cytokines, chemokines and remodeling factors were collected for analysis. Cluster analysis was performed on the integrated data of training set through centroid-based clustering algorithm, and the inflammatory characteristics, post-operation control status, and airway diseases comorbidity of each endotype were analyzed. R project (version 4.2.2) was used in statistical analysis. Results: Cluster analysis divided 181 patients with CRS into 4 endotypes. Cluster 1 (n=101, 55.80%) showed a locally low inflammatory status. Cluster 2 (n=23, 12.71%) showed a mixed type of inflammation with predominantly neutrophilic inflammation and tissue remodeling. Cluster 3 (n=11, 6.08%) was characterized by type â ¡ inflammation without tissue remodeling. Cluster 4 (n=46, 25.41%) was mainly characterized by type â ¡ inflammation with tissue remodeling, showing higher comorbidity rate of asthma and allergic rhinitis. This cluster presented more severe symptoms, significant olfactory dysfunction, extensive overall inflammation based on objective examination results, a notable increase in total eosinophil count and proportion in peripheral blood, and the highest uncontrolled rate observed one year post-surgery. In comparison to other regions, the endotype classification of CRS in Southern China was characterized by a predominant pattern of locally low inflammatory status, a moderate level of type â ¡ inflammation with tissue remodeling, and a lesser presence of neutrophilic inflammation. Conclusion: CRS distribution in Southern China is mainly characterized by low inflammatory endotype and type â ¡ inflammation with tissue remodeling. The latter shows more severe clinical manifestations and higher uncontrol rate after surgery.
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Biomarcadores , Inflamación , Rinosinusitis , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Biomarcadores/sangre , China/epidemiología , Enfermedad Crónica , Análisis por Conglomerados , Citocinas/sangre , Citocinas/metabolismo , Senos Paranasales/patología , Estudios Retrospectivos , Rinosinusitis/diagnóstico , Tomografía Computarizada por Rayos XAsunto(s)
Artritis Juvenil , Síndrome de Activación Macrofágica , Niño , Humanos , Artritis Juvenil/complicaciones , Artritis Juvenil/tratamiento farmacológico , Síndrome de Activación Macrofágica/tratamiento farmacológico , Síndrome de Activación Macrofágica/etiología , Anticuerpos Monoclonales Humanizados/uso terapéuticoRESUMEN
Objective: To examine the radiomics model based on high-resolution T2WI and diffusion weighted imaging (DWI) in predicting microsatellite stability in patients with stage â ¡ and â ¢ rectal cancer. Methods: From February 2016 to October 2020, 175 patients with stage â ¡ and â ¢ rectal cancer who met the inclusion criteria were retrospectively collected. There were 119 males and 56 females, aged (63.9±9.4) years (range: 37 to 85 years), including 152 patients with microsatellite stability and 23 patients with microsatellite instability. All patients were randomly divided into the training group (n=123) and the validation group (n=52) with a ratio of 7â¶3. The region of interest was labeled on the T2WI and DWI images of each patient using the ITK-SNAP software, and PyRadiomics was used to extract seven kinds of radiomics features. After removing redundant features and normalizing features, the least absolute shrinkage and selection operation were used for feature selection. One clinical model, three radiomics models and one clinical-radiomics model were constructed in the training group based on a support vector machine. The area under receiver operating characteristic curve (AUC), sensitivity, specificity, and accuracy were used to evaluate the performance of the models in the verification group. Results: Three clinical features (age, degree of tumor differentiation, and distance from the lower edge of the tumor to the anal edge) and six radiomics features (two DWI-related features and four T2WI-related features) most related to microsatellite status of rectal cancer patients were selected. The AUC of the clinical-radiomics model in the training group was 0.95. In the validation group, the AUC was 0.81, better than the clinical model (0.68, Z=0.71, P=0.04), and equivalent to the T2WI+DWI model (0.82, Z=0.21, P=0.83). Conclusions: Radiomic features based on preoperative T2WI and DWI were related to microsatellite stability in patients with stage â ¡ and â ¢ rectal cancer and showed a high classification efficiency. The model based on the features provided a noninvasive and convenient tool for preoperative determination of microsatellite stability in rectal cancer patients.
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Inestabilidad de Microsatélites , Neoplasias del Recto , Femenino , Masculino , Humanos , Estudios Retrospectivos , Imagen por Resonancia Magnética , Neoplasias del Recto/diagnóstico por imagen , Neoplasias del Recto/genética , Curva ROCRESUMEN
Due to the lack of effective early diagnosis and treatment, gallbladder cancer(GBC) remains a malignant tumor with extremely high malignancy and poor prognosis. Therefore, high quality studies are required to break through the bottleneck in GBC diagnosis and treatment. This article reviewed the domestic and foreign GBC research published in 2021, presenting a comprehensive summary of the important advances in the field of clinical diagnosis and treatment. Latest epidemiological data and risk factors, emerging diagnostic methods of peripheral blood laboratory tests and imaging, new pathologic classification system, hot topics and controversies of surgical treatment as well as the dynamics of systemic treatment of GBC are reviewed in the article. The present findings may contribute to a more efficient means of diagnosis and treatment for GBC and hold the promise of improved outcomes for patients with GBC.
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Nipah virus disease (NVD) is a newly emerged zoonosis with a case fatality rate of 40%-75%. NVD is a severe threat to human health and the development of livestock farming. NVD has become one of the emerging infectious diseases with great concern globally during more than 20 years. Nipah virus (NiV) is a pathogen for NVD, the natural host of which is Fruit bats of the Pteropodidae family. The clinical spectrum of NiV infection is broad, including asymptomatic infection, acute respiratory infection, fatal encephalitis, and even death. Since NiV was first identified in Malaysia in 1999, it has been prevalent mainly in Southeast Asia and South Asia. NiV is primarily transmitted to humans through bat-pig-human, contaminated food. Currently, there are no specific therapeutic drugs and vaccines for NVD. Although there are no cases of NVD reported in China, which has close personnel and trade exchanges with major NVD-endemic countries, and NiV antibody has also been detected in relevant bats. There is a potential risk of importing NVD and domestic outbreaks in the future in this country. This paper provides a systematic review of the research progress in the prevention and control of NVD etiology, epidemiology, clinical manifestations and laboratory diagnosis to help relevant staff to understand NVD more comprehensively and systematically.
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Quirópteros , Enfermedades Transmisibles Emergentes , Infecciones por Henipavirus , Virus Nipah , Animales , Enfermedades Transmisibles Emergentes/epidemiología , Enfermedades Transmisibles Emergentes/prevención & control , Brotes de Enfermedades , Infecciones por Henipavirus/epidemiología , Infecciones por Henipavirus/prevención & control , Porcinos , Zoonosis/epidemiología , Zoonosis/prevención & controlRESUMEN
Objective: To compare the short-term and long-term outcomes between robotic-assisted and laparoscopic-assisted radical right hemicolectomy in patients with adenocarcinoma of the right colon. Methods: Retrospective review of a prospectively collected database identified 288 right colon cancer patients who underwent either robotic-assisted (n=57) or laparoscopic-assisted right hemicolectomy (n=231) between October 2014 and October 2020 at Department of Gastrointestinal Surgery, the Affiliated Hospital of Qingdao University. There were 161 males and 127 females, aging (60.3±12.8) years (range: 17 to 86 years). After propensity score matching as 1â¶4 between robotic-assisted and laparoscopic-assisted right hemicolectomy, there were 56 cases in robotic group and 176 cases in laparoscipic group. Perioperative outcomes and overall survival were compared between the two groups using t test, Wilcoxon rank sum test, χ2 test, Fisher exact test, Kaplan-Meier method and Log-rank test, respectively. Results: The total operative time was similar between the robotic and laparoscopic group ((206.9±60.7) minutes vs. (219.9±56.3) minutes, t=-1.477, P=0.141). Intraoperative bleeding was less in the robotic group (50 (20) ml vs. 50 (50) ml, Z=-4.591, P<0.01), while the number of lymph nodes retrieved was significantly higher (36.0±10.0 vs. 29.0±10.1, t=4.491, P<0.01). Patients in robotic group experienced significantly shorter hospital stay, shorter time to first flatus, and defecation (t: -2.888, -2.946, -2.328, all P<0.05). Moreover, the overall peri-operative complication rate was similar between robotic and laparoscopic group (17.9% vs. 22.7%, χ²=0.596,P=0.465). The 3-year overall survival were 92.9% and 87.9% respectively and the 3-year disease-free survival rates were 83.1% and 82.6% with no statistical significance between the robotic and laparoscopic group (P>0.05). Conclusions: Compared to laparoscopic-assisted right hemicolectomy, robot-assisted right hemicolectomy could improve some short-term clinical outcomes. The two procedures are both achieving comparable survival.
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Neoplasias del Colon , Laparoscopía , Procedimientos Quirúrgicos Robotizados , Colectomía , Neoplasias del Colon/cirugía , Femenino , Humanos , Masculino , Pronóstico , Puntaje de Propensión , Estudios Retrospectivos , Resultado del TratamientoRESUMEN
Objective: To observe the effect of autologous platelet-rich plasma (PRP) combined with Meek microskin grafts in repairing the wounds of limbs in severely burned patients, and to explore the mechanism. Methods: The prospective controlled research method was used. From September 2016 to January 2020, 16 patients aged 18-69 years, with extensive deep burns, including 9 males and 7 females, who met the selection criteria were admitted to the Department of Burns and Plastic Surgery of the 909th Hospital of the Joint Logistic Support Force of PLA. The bilateral limbs with similar injury in 8 patients were divided into Meek skin grafting+PRP group and Meek skin grafting alone group according to the random number table; in the other 8 patients, the limbs with severer injury were included in Meek skin grafting+PRP group, and the limbs on the other side were included in Meek skin grafting alone group. The wounds of affected limbs in the two groups were treated correspondingly. On post surgery day (PSD) 10, the survival and fusion of Meek microskin grafts were observed and the survival rate and fusion rate were calculated; the histological morphology and the angiogenesis of the basal tissue of Meek microskin graft were observed by hematoxylin-eosin staining and immunohistochemical staining, respectively, with the microvessels being counted. Data were statistically analyzed with paired sample t test. Results: On PSD 10, the wounds of affected limbs in Meek skin grafting+PRP group were dry, and most of the transplanted skin grafts were closely adhered to the basal tissue; while a small amount of exudate could be found in the wounds of affected limbs in Meek skin grafting alone group, and a small part of the transplanted microskin grafts fell off or poorly attached to the basal tissue. On PSD 10, the survival rate and the fusion rate of Meek microskin grafts in the wounds of affected limbs in Meek skin grafting+PRP group were (94±3)% and (86±4)%, which were significantly higher than (89±4)% and (79±4)% of Meek skin grafting alone group, respectively (t=3.633, 4.229, P<0.01). On PSD 10, the basal epidermis was closely connected with dermis of Meek microskin grafts in the wounds of affected limbs in Meek skin grafting+PRP group, with more inflammatory cell infiltration and active microvascular hyperplasia, while the basal epidermis was less closely connected with dermis of Meek microskin grafts in the wounds of affected limbs in Meek skin grafting alone group, with obvious degeneration of collagen fibers under the dermis, less inflammatory cell infiltration, and slightly poor microvascular hyperplasia. On PSD 10, the distribution of microvessels in basal tissue of Meek microskin grafts in the wounds of affected limbs in Meek skin grafting+PRP group were densely clustered, while the distribution of microvessels in Meek skin grafting alone group were scattered, sparse, and dotted. On PSD 10, the number of microvessels in basal tissue of Meek microskin grafts in the wounds of affected limbs in Meek skin grafting+PRP group was 36±6 in each 400-fold visual field, which was significantly more than 29±7 of Meek skin grafting alone group (t=2.671, P<0.05). Conclusions: Autologous PRP can effectively promote the survival rate and fusion rate of Meek microskin grafts in the wounds of limbs after escharectomy in severely burned patients by promoting angiogenesis at the base of Meek microskin grafts.
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Quemaduras , Plasma Rico en Plaquetas , Quemaduras/cirugía , Femenino , Humanos , Masculino , Estudios Prospectivos , Trasplante de Piel , Cicatrización de HeridasAsunto(s)
Anemia Aplásica , Síndrome Antifosfolípido , Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas , Anemia Aplásica/complicaciones , Anemia Aplásica/terapia , Síndrome Antifosfolípido/complicaciones , Síndrome Antifosfolípido/terapia , Humanos , Hermanos , Acondicionamiento PretrasplanteRESUMEN
OBJECTIVE: To explore the expression and significance of SAA, CRP and FERR in patients diagnosed with COVID-19. PATIENTS AND METHODS: A total of 225 patients diagnosed with COVID-19 who were admitted to the North Hospital of First Hospital in Changsha, China, from 9th February 2020 to 7th March 2020 were enrolled. Their general data, laboratory test results and levels of SAA, CRP and FERR were extracted from electronic medical records. RESULTS: Age was an important risk factor for the severity of COVID-19 in the patients. Compared with the non-severe group, the severe group showed statistical significance in the levels of total protein, albumin, ALT and AST in liver function, UA in renal function, myocardial enzyme CK-MB and LDH, and immunoglobulin IgG and IgM. The levels of SAA, CRP, and FERR were significantly increased in patients with severe COVID-19. ROC curve analysis results showed that the AUC, from small to large, was as follows: SAA+CRP+FERR, CRP + FERR, SAA + CRP, SAA + FERR, SAA, FERR, and CRP, which indicated the benefit of the combination of the three indicators. The sensitivity and specificity of the combined detection of the three indicators were higher than those of the detection of any single indicator or two combined indicators. A Spearman correlation analysis of the data showed that the initial CRP/SAA, SAA/FERR, and CRP/FERR were positively correlated. The continuous results of SAA, CRP and FERR throughout the study period showed that the values of the severe group on a given day were higher than those of the non-severe group; the values of the two groups peaked on the 5th or 7th day and then decreased, and the decreasing trend of the severe group was more evident. CONCLUSIONS: SAA, CRP and FERR are sensitive serological indicators used to evaluate the severity of COVID-19. The combined detection of serum SAA, FERR, and CRP, which are positively related to COVID-19 infection, offers guiding significance for the occurrence of COVID-19 infection and the severity of the disease. Such detection provides effective detection indicators for the progress and prognosis of COVID-19; these indicators will enable effective intervention measures to be implemented in time and the rates of severe illness and mortality to be reduced.
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Proteína C-Reactiva/análisis , Infecciones por Coronavirus/diagnóstico , Ferritinas/sangre , Neumonía Viral/diagnóstico , Proteína Amiloide A Sérica/análisis , Adulto , Factores de Edad , Anciano , Betacoronavirus/aislamiento & purificación , Betacoronavirus/patogenicidad , Biomarcadores/sangre , COVID-19 , China/epidemiología , Infecciones por Coronavirus/sangre , Infecciones por Coronavirus/mortalidad , Infecciones por Coronavirus/virología , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pandemias , Neumonía Viral/sangre , Neumonía Viral/mortalidad , Neumonía Viral/virología , Pronóstico , Estudios Retrospectivos , SARS-CoV-2 , Sensibilidad y Especificidad , Índice de Severidad de la EnfermedadRESUMEN
Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "Long noncoding RNA HOXA-AS2 acts as an oncogene by targeting miR-145-3p in human non-small cell lung cancer, by Y.-B. Shi, S.-L. Liu, X.-R. Mou, J. Liao, J.-P. Che, X.-Q. Fei, A.-R. Wang, published in Eur Rev Med Pharmacol Sci 2020; 24 (3): 1243-1249-DOI: 10.26355/eurrev_202002_20177-PMID: 32096154" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/20177.
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Objective: To investigate the effectiveness of an enhanced CT automatic recognition system based on Faster R-CNN for pancreatic cancer and its clinical value. Methods: In this study, 4 024 enhanced CT imaging sequences of 315 patients with pancreatic cancer from January 2013 to May 2016 at the Affiliated Hospital of Qingdao University were collected retrospectively, and 2 614 imaging sequences were input into the faster R-CNN system as training dataset to create an automatic image recognition model, which was then validated by reading 1 410 enhanced CT images of 135 cases of pancreatic cancer.In order to identify its effectiveness, 3 750 CT images of 150 patients with pancreatic lesions were read and a followed-up was carried out.The accuracy and recall rate in detecting nodules were recorded and regression curves were generated.In addition, the accuracy, sensitivity and specificity of Faster R-CNN diagnosis were analyzed, the ROC curves were generated and the area under the curves were calculated. Results: Based on the enhanced CT images of 135 cases, the area under the ROC curve was 0.927 calculated by Faster R-CNN. The accuracy, specificity and sensitivity were 0.902, 0.913 and 0.801 respectively.After the data of 150 patients with pancreatic cancer were verified, 893 CT images showed positive and 2 857 negative.Ninety-eight patients with pancreatic cancer were diagnosed by Faster R-CNN.After the follow-up, it was found that 53 cases were post-operatively proved to be pancreatic ductal carcinoma, 21 cases of pancreatic cystadenocarcinoma, 12 cases of pancreatic cystadenoma, 5 cases of pancreatic cyst, and 7 cases were untreated.During 5 to 17 months after operation, 6 patients died of abdominal tumor infiltration, liver and lung metastasis.Of the 52 patients who were diagnosed negative by Faster R-CNN, 9 were post-operatively proved to be pancreatic ductal carcinoma. Conclusion: Faster R-CNN system has clinical value in helping imaging physicians to diagnose pancreatic cancer.
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Interpretación de Imagen Asistida por Computador/métodos , Redes Neurales de la Computación , Neoplasias Pancreáticas/diagnóstico por imagen , Tomografía Computarizada por Rayos X/métodos , Humanos , Neoplasias Pancreáticas/diagnóstico , Curva ROC , Estudios Retrospectivos , Sensibilidad y EspecificidadRESUMEN
Objective: To investigate the epidemiological characteristics for family clusters of COVID-19 in Zhejiang Province. Methods: The data including cases information of asymptomatic infected cases of family clusters of COVID-19 in Zhejiang Province were collected from Public Health Emergencies Reporting System of China Center for Disease Control and Prevention. Calculate the case number of subsequent cases, index cases, asymptomatic infected cases, exposure cases, and then, compute family secondary attack rate (SIR) and serial interval. Results: A total of 389 cases comprised 149 family index cases and 240 subsequent cases. The clinical symptoms between family index cases and subsequent cases (exclude asymptomatic infected cases ) were similar, fever was the most common symptoms in the two groups 115 (77.18%) and 110ï¼48.67%ï¼respectively, the cases with diarrhea symptoms accounted for the least proportion, which were 7 (4.70%) and 6 (2.65%) respectively. The serial interval between the family index cases and the subsequent cases [M (P25, P75)] was 4.00 (2.00, 6.00) days. Family secondary attack rate for subsequent cases was 34.43%, subsequent cases aged between 14 and 60 have the highest SIR (43.42%) compared with other two age groups, the difference was statistically (P<0.001); the family SIR of the spouses of the family index cases is 68.57%, and are higher than that of parents (29.03%), children (25.00%) and other family members (24.21%), the difference was also statistically (P<0.001). Conclusion: 2019 novel coronavirus has shorter serial interval and higher family SIR, the SIR of spouses is higher than other family members.
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Infecciones por Coronavirus/epidemiología , Familia , Neumonía Viral/epidemiología , Adolescente , Adulto , COVID-19 , China/epidemiología , Análisis por Conglomerados , Humanos , Persona de Mediana Edad , Pandemias , Adulto JovenRESUMEN
OBJECTIVE: Recent studies have proved that long non-coding RNAs (lncRNAs) play important roles in many diseases, especially malignancies. The aim of this study was to investigate the exact role of lncRNA HOXA-AS2 (Hoxa cluster antisense RNA 2) in the development of non-small cell lung cancer (NSCLC). PATIENTS AND METHODS: Quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) was utilized to detect HOXA-AS2 expression in NSCLC patients. The Wound healing assay and transwell assay were conducted to explore the function of HOXA-AS2 on NSCLC metastasis. Furthermore, the mechanism assays were used to explore the interaction between HOXA-AS2 and microRNA-145-3p (miR-145-3p). RESULTS: HOXA-AS2 expression level in NSCLC tissues was significantly higher than adjacent tissues. HOXA-AS2 expression was negatively correlated with disease-free survival of NSCLC patients. Moreover, the functional assays showed that the migration and invasion of NSCLC cells were significantly inhibited after HOXA-AS2 in vitro silence. Furthermore, the luciferase reporter gene assay also revealed that miR-145-3p was a direct target of HOXA-AS2 in NSCLC. CONCLUSIONS: Our results indicated that HOXA-AS2 could enhance the migration and invasion abilities of NSCLC by targeting miR-145-3p. Furthermore, these findings suggested that HOXA-AS2 might be a potential therapeutic target for NSCLC.
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Objective: To examine the value and clinical application of convolutional neural network in pathological diagnosis of metastatic lymph nodes of gastric cancer. Methods: Totally 124 patients with advanced gastric cancer who underwent radical gastrectomy plus D2 lymphadenectomy at Affiliated Hospital of Qingdao University from July 2016 to December 2018 were selected in the study. According to the chronological order, the first 80 cases were served as learning group. The remaining 44 cases were served as verification group. There were 45 males and 35 females in the study group, with average age of 57.6 years. There were 29 males and 15 females in the validation group, with average age of 9.2 years. The pre-training convolutional neural network architecture Resnet50 was trained and fine-tuned by 21 352 patches with cancer areas and 14 997 patches without cancer areas in the training group. A total of 78 whole-slide image served as a test dataset including positive (n=38) and negative (n=40) lymph nodes. The convolutional neural network computer-aided detection (CNN-CAD) system was used to analyze the ability of convolutional neural network system to screen metastatic lymph nodes at the level of slice by setting threshold, and evaluate the system's classification accuracy by calculating its sensitivity, specificity, positive predictive value, negative predictive value and area under the receiver operating characteristic curve (AUC). Results: The classification accuracy of CNN-CAD system at slice level was 100%.The AUC for the CNN-CAD system was 0.89. The sensitivity was 0.778, specificity was 0.995, overall accuracy was 0.989. Positive and negative predictive values were 0.822 and 0.994, respectively. The CNN-CAD system achieved the same classification results as pathologists. Conclusions: The CNN-CAD system has been constructed to distinguished benign and malignant lymph node slides with high accuracy and specificity. It could achieve the similar classification results as pathologists.
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Ganglios Linfáticos/patología , Redes Neurales de la Computación , Neoplasias Gástricas/diagnóstico por imagen , Neoplasias Gástricas/patología , Niño , Conjuntos de Datos como Asunto , Diagnóstico por Computador , Femenino , Gastrectomía/métodos , Humanos , Procesamiento de Imagen Asistido por Computador , Escisión del Ganglio Linfático , Ganglios Linfáticos/cirugía , Metástasis Linfática , Masculino , Persona de Mediana Edad , Neoplasias Gástricas/cirugíaRESUMEN
OBJECTIVE: To analyze the mechanism of action by which the bone marrow mesenchymal stem cells (BMMSCs) repair the spinal cord injury (SCI) in rats via the Notch signaling pathway. MATERIALS AND METHODS: A total of 75 male rats aged about 12 weeks old were equally divided into group A (sham operation group), group B (model group), and group C (model group + BMMSCs). The SCI model was established by Allen's method, and the differences in presenilin-1, Hes1 and Notch proteins among the three groups of rats were evaluated via immunohistochemical staining and Western blotting. RESULTS: Group B exhibited a lower Basso, Beattie, and Bresnahan (BBB) score at each time point than group A and group C (p<0.05), and the BBB score in group C was lower than that in group A (p<0.05). According to the average optical density analysis results of the immunohistochemically stained proteins, the optical density of presenilin-1 protein in group A was lower than that in both group B and group C (p<0.05), and group C exhibited a lower optical density of presenilin-1 protein than group B. In group A, the protein expression of Hes1 in the bone marrow tissues of rats was not evident and weakly positive. Compared with that in group A, it was substantially raised (p<0.05), and the strongly positively expressed Hes1 proteins were yellow or dark brown in group B. Compared with that in group B, the color of Hes1 proteins was lighter (p<0.05), and the positive level of Hes1 proteins was lowered in group C. Group A showed inconspicuously positively expressed Notch proteins, group B brown active Notch proteins, while group C several brown Notch proteins. The optical density of Notch proteins in group A was overtly lower than that in group B and group C (p<0.05), and it was significantly lower in group C than that in group B (p<0.05). Additionally, group B had an evidently higher expression level of Notch proteins than the other two groups (p<0.05), and the expression level of Notch proteins in group C was a little higher than that in group A (p<0.05). CONCLUSIONS: BMMSCs inhibit the Notch signals to promote the proliferation and differentiation of rat neurons, thereby repairing spinal neurons.
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Trasplante de Células Madre Mesenquimatosas/métodos , Receptores Notch/metabolismo , Traumatismos de la Médula Espinal/terapia , Animales , Células Cultivadas , Modelos Animales de Enfermedad , Regulación de la Expresión Génica , Masculino , Células Madre Mesenquimatosas/citología , Presenilina-1/metabolismo , Ratas , Ratas Sprague-Dawley , Transducción de Señal , Traumatismos de la Médula Espinal/etiología , Traumatismos de la Médula Espinal/metabolismo , Factor de Transcripción HES-1/metabolismo , Resultado del TratamientoRESUMEN
Gastric cancer is the most common gastrointestinal cancer in China. The morbidity and mortality are extremely high and there are significant challenges in the treatment of gastric cancer. Recent studies have shown that the expressions of T lymphocyte subsets vary in the immune microenvironment of gastric cancer patients. T lymphocytes are not only the main effector cells of human cellular immunity, but also the important immunoregulatory cells. T lymphocytes not only reflect the state of the tumor microenvironment, but also closely relate with the prognosis of patients. T lymphocytes play a crucial guiding role in the clinical treatment. Currently, clinical trials related to immunological checkpoint inhibitors are still underway, among which PD-1/PD-L1 monoclonal antibody has been approved for the treatment of gastric cancer. The applications of tumor vaccines and adoptive cell therapies in gastric cancer are also being explored. How to screen patients suitable to immunotherapy, develop the best combination therapy and evaluate the effectiveness of immunotherapy need to be studied and solved.
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Anticuerpos Monoclonales/uso terapéutico , Inmunidad Celular/inmunología , Neoplasias Gástricas/inmunología , Subgrupos de Linfocitos T/inmunología , Microambiente Tumoral/inmunología , Antígeno B7-H1/uso terapéutico , Vacunas contra el Cáncer/uso terapéutico , Puntos de Control del Ciclo Celular/inmunología , Proteínas de Ciclo Celular/antagonistas & inhibidores , Proteínas de Ciclo Celular/inmunología , Proteínas de Ciclo Celular/uso terapéutico , Humanos , Inmunidad Celular/efectos de los fármacos , Inmunoterapia , Receptor de Muerte Celular Programada 1/uso terapéutico , Microambiente Tumoral/efectos de los fármacosRESUMEN
OBJECTIVE: To investigate the expression changes of high mobility group box-1 (HMGB-1) and tissue factor (TF) and their correlation in the serum of sepsis rat models. MATERIALS AND METHODS: 30 rats were divided into the sham-operated group, 15 rats were in the control group. The cecal ligation and puncture method was used to make the animal model with abdominal infection induced by sepsis. There were 15 rats in the sepsis group among which they were divided into 3 subgroups at different time points after modeling (after 6 hours, 12 hours, 24 hours). Cardiac function indicators of the rats in each subgroup were monitored, including heart rate (HR), left ventricular end-diastolic pressure (LVEDP) and left ventricular developed pressure (LVDP), and enzyme-linked immunosorbent assay (ELISA) was used to test the changes of the expression levels of HMGB-1 and TF in the serum of the rats after 6 hours, 12 hours, 24 hours. Pearson correlation analysis was used to analyze the correlation between HMGB-1 and TF. RESULTS: HR and LVEDP of the rats in the sepsis group were significantly higher than those of the rats in the control group. The differences were statistically significant (p<0.050). LVDP of the rats in the sepsis group was markedly lower than that of the rats in the control group. The differences were statistically significant (p<0.050). The expressions of HMGB-1 and TF of the rats in the subgroups of the sepsis group were higher than those of the rats in the control group after 6 hours, 12 hours, 24 hours; the expression levels of HMGB-1 and TF of the rats with sepsis increased with time. The differences were statistically significant (p<0.050). When the expressions of HMGB-1 and TF of the rats in the sepsis group were compared with each other within the group the differences were significantly different (p<0.050). The expressions of HMGB-1 and TF in the subgroups at the 24th hour were significantly higher than those at the 6th hour. The differences were statistically significant (p<0.050). The differences of the expression of TF of the rats in the control group were not statistically significant (p>0.050). There was a significant positive correlation between HMGB-1 and TF of the rats in the sepsis group (r=0.772, p=0.002). CONCLUSIONS: The expression levels of HMGB-1 and TF of the rats with sepsis gradually increased with time, and the level of HMGB-1 was positively correlated with the level of TF.
Asunto(s)
Proteína HMGB1/biosíntesis , Sepsis/metabolismo , Tromboplastina/biosíntesis , Animales , Modelos Animales de Enfermedad , Ensayo de Inmunoadsorción Enzimática , Proteína HMGB1/análisis , Ratas , Ratas Wistar , Sepsis/sangre , Tromboplastina/análisisRESUMEN
OBJECTIVE: Expression of long non-coding RNA LOC730101 (LOC730101) has been closely linked to the carcinogenesis of osteosarcoma and has been shown to function as a tumor promoter. However, the clinical significance of LOC730101 remains unknown. Our present study aimed to investigate the feasibility of LOC730101 as a novel prognostic biomarker for osteosarcoma. PATIENTS AND METHODS: Quantitative Real-time RT-PCR (qRT-PCR) was performed to examine LOC730101 expression in osteosarcoma tissues and adjacent non-cancerous tissues. The correlation between LOC730101 expression and clinicopathological features and the overall survival rate was determined. Cox regression analyses were performed to explore whether LOC730101 was an independent predictor of survival for osteosarcoma patients. RESULTS: We found that LOC730101 was significantly upregulated in human osteosarcoma tissues compared with corresponding adjacent normal tissues (p < 0.01). Elevated LOC730101 expression was correlated with advanced clinical stage (p = 0.001) and distant metastasis (p = 0.005). Furthermore, survival assay revealed that osteosarcoma patients in the high LOC730101 expression group had significantly shorter 5-year overall survival time than those in the low LOC730101 expression group (p = 0.0002). In addition, multivariate analysis showed that LOC730101 maintained an independent prognostic influence on overall survival (p = 0.006). CONCLUSIONS: Our present study, for the first time, revealed that LOC730101 may serve as a poor prognostic indicator in patients with osteosarcoma.