Objective To explore the role of VEGF positive expression in tumor tissue in the prognosis of liver transplantation for hepatocellular carcinoma (HCC).Method Fifty cases of liver transplant recipients with HCC confirmed immunohistochemically were enrolled in this study.The MaxVisionTM two-step method was applied to detect the expression of vascular endothelial growth factor(VEGF),and the microvessel density (MVD) was measured in para-cancerous tissues by using DAB staining.The correlation of the VEGF tumor tissue in tumor tissue with Child-Pugh,MELD,tumor diameter and number,differentiation,MVD,Milan criteria and UCSF criteria for HCC liver transplantation was analyzed.Result In the HCC tissue,the VEGF positive expression rate was 52％(26/50).The one-year survival of recipients positive and negative for VEGF was 78％ and 100％,respectively,and one-year recurrence rate was 32％ and 12％,respectively,with the difference being significant (P =0.043 and P =0.048 respectively).The expression of VEGF was associated with Child-Pugh,tumor diameter,MVD,Milan criteria and UCSF criteria (P＜0.05 for all).Logistic regression analysis showed that low differentiation and VEGF positive expression were independent prognostic factors for HCC recurrence after liver transplantation.Conclusion VEGF has a certain reference value to judge HCC invasiveness and prognosis of liver transplantation.

Objective To investigate the expressions of HBXIP and GRIM-19 in hepatocellular carcinoma tissues and their clinic significance. Methods Hepatocellular carcinoma tissue (n=42) and normal liver tissue (n=28) were collected from Tianjin First Central Hospital,immunohistochemistry was used to detect the expressions of HBXIP and GRIM-19 in these two groups. Results Rate of cells with positive expressions of HBXIP in hepatocellular carcinoma and normal liver tissues were 80.95%(34/42)and 42.86%(12/28)respectively;Rate of cells with positive expression of GRIM-19 in hepato?cellular carcinoma tissues and normal liver tissues was 40.48%(17/42)and 75.00%(21/28)respectively, and the difference between these two groups was statistically significant(P<0.05);The expression of HBXIP was higher but the expression of GRIM-19 was lower in poor differentiated and stageⅢ-IV cells than those in well and moderate differentiated cells and in stage I-II, cells. What′s more, the expression of GRIM-19 is higher in tissue without portal thrombosis than that in tissue with portal thrombosis. The expression of HBXIP was negatively correlated with GRIM-19 expression(rS=-0.400,P<0.01). Conclusion The abnormal expressions of HBXIP and GRIM-19 may play important roles in the process of development and metastasis of hepatocellular carcinoma.

Objective To investigate the efficacy and safety of transcatheter arterial chemoembolization (TACE) combined with CT-guided thermal ablation (radiofrequency ablation or microwave ablation) in treating intrahepatic cholangiocarcinoma.Methods The clinical data of 14 patients with pathologicallyproved intrahepatic cholangiocarcinoma,who were admitted to authors' hospital during the period from September 2009 to July 2013 to receive TACE with subsequent radiofrequency ablation (RFA) or microwave ablation (MWA),were retrospectively analyzed.A total of 18 lesions were detected in the 14 patients.The maximal diameter of the lesion (or the sum of maximal diameters if there were multiple lesions) ranged from 2.2 cm to 7.2 cm (mean 4.2±1.4 cm).After TACE,the lesion's complete ablation rate,surgical complications,tumor-free survival time and overall survival time were evaluated.Results Complete ablation was obtained in 15 lesions (83.3％,15/18).The incidence of moderate complications was 6.2％,and no severe complications or death occurred.After the treatment,the patients were followed up for 6-14 months,with a mean of (16.0±10.3) months.At the end of follow-up,6 patients (42.9％,6/14) died.The median tumor-free survival time in patients whose lesions obtained complete ablation was 17 months.The median survival time of all patients was 20 months.The 1-,2-and 3-year overall survival rates were 82.5％,41.3％ and 20.6％ respectively.Conclusion TACE combined with thermal ablation can be regarded as one of the treatment options for intrahepatic cholangiocarcinoma.

Objective To evaluate the efficacy and safety of transcatheter hepatic arterial chemoembolization (TACE) combined with CT guided radiofrequency ablation (RFA) for primary liver cancer in the caudate lobe.Methods Sixteen patients with primary liver cancer in the caudate lobe were treated with combination therapy of TACE and RFA.Complet ablation rate,overall and recurrence-free survival,and complications were evaluated.Results A total of 15 cases achieved complet ablation,complet ablation rate was 93.75％ (15/16).Recurrence-free survival time was 19.35 months,overall survival time was 44.62 months.Overall survival rates were 88.23％,66.65％ and 33.18％ at 1,3,5 years after therapy,respectively.Conclusion TACE combined with RFA is a safe and useful therapeutic option for treatment of primary liver cancer in the caudate lobe.

OBJECTIVETo provide a new approach for studying the compatibility principle of traditional Chinese medicine formula (TCMF) by constructing compatibility network of phamarcologic action of TCMF according to the network theory.

METHODWith Chinese herb as node and compatibility relationship of herb-herb as edge according to network theory, compatibility network of phamarcologic action of TCMF was constructed after the compatibility relationship of herb-herb was analysed by two-way analysis of variance (ANOVA)through phamarcology experiment. Then compatibility principle of TCMF was analysed with network efficiency (NE) and NE related parameters.

RESULTThe network approach was applied for studying compatibility principle of Jiawei Shengmai San on it's antimyocardial ischemia reperfusion injury action. The results indicated that rhizoma corydalis was the main herb in Jiawei Shengmai San, and in turn was radix ophiopogonois, radix salvia miltiorrhiza, radix ginseng and fructus schizandrae, radix ginseng and radix salvia was clustered first, and in turn was radix, Formule composed of ophiopogonois and fructus schizandrae. Formule composed of radix ginseng and radix salvia, and radix ophiopogonois and fructus schizandrae; radix ginseng, radix salvia miltiorrhiza and rhizoma corydalis was the most effective one among all the formulaes. These results were consistent with validation experiments.

CONCLUSIONStudying compatibility principle of TCMF by network theory is a new and feasible method.

Animals ; Chemistry, Pharmaceutical ; methods ; Drug Interactions ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Male ; Panax ; chemistry ; Plants, Medicinal ; chemistry ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Salvia miltiorrhiza ; chemistry

Objective To investigate the clinical implications of serum tenascin-C (TNC) levels for lung injury and the prognosis in acute paraquat (PQ) poisoning patients.Methods Clinical data of acute PQ poisoning patients hospitalized in Emergency Department of First Hospital of China Medical University from January 1 to December 31,2017 were prospectively collected.Patients' serum samples were obtained on admission and serum TNC levels were quantified by a commercially available enzymelinked immunosorbent assays (ELISA) kit.Patients were followed up to 28 d after poisoning and divided into the survival and non-survival groups.The differences of clinical data together with serum TNC level between the two groups were analyzed by univariable analysis.The correlation between serum TNC level and liver function,renal function and artery blood gas results was analyzed.Logistic regression analysis was used for assessing the independent risk factors of death.ROC curves of related parameters were plotted and the area under the curve (AUC) was calculated.Results Eighty-two patients were enrolled in this study:35 patients in the non-survival group and 47 patients in the survival group.There was no significant difference of data on admission between the two groups,including pH,PaO2,Cr,BUN,ALT,TBil,AMS,TNC,lung CT positive rate.But PaCO2,Lac,urine paraquat concentration and serum TNC level on admission were significantly different between the survival and non-survival groups.Furthermore,serum TNC level was correlated significantly with the worst PaO2 value,pH,and lung CT positive rate within 72 h from admission,especially the worst PaO2 value (r=-0.801,P＜0.01).Logistic regression analysis showed that the serum TNC level on admission was an independent risk factor for the prognosis of acute PQ poisoning patients.The AUC was 0.895 and the cutoff value was 41.9 ng/mL.Conclusion The early serum TNC level in acute PQ poisoning patients can predict the degree of lung injury and evaluate the prognosis.

BACKGROUND:Previous studies have shown the correlation between lumbosacral sagittal plane parameters and natural absorption of lumbar disc herniation.However,the lumbosacral sagittal plane parameters included lumbar lordosis angle,lumbosacral joint angle,sacral inclination angle and many other parameters.The effects of each parameter on the natural absorption of the herniated disc were different.In addition,there are few studies on the reabsorption of a specific segment of intervertebral disc herniation at present,and most of the measured data are obtained from digital radiography or CT,while the correlation between lumbosacral sagittal plane parameters measured from MRI and reabsorption after L5/S1 intervertebral disc herniation is rarely reported. OBJECTIVE:To study the corresponding changes of lumbar sagittal plane parameters after L5/S1 intervertebral disc herniation reabsorption and to screen out the lumbosacral sagittal plane parameters with the most significant changes during intervertebral disc reabsorption. METHODS:Totally 57 patients with lumbar disc herniation who had complete MRI image data were selected and met the diagnostic criteria for lumbar disc herniation and only received non-surgical treatment for reabsorption of L5/S1 protrusion segments.MRI measured the protrusion area of the maximum protrusion plane in the coronal plane,lumbosacral sagittal plane parameters[lumbar curvature index,lumbar lordosis(α),L5/S1 disc angle(β),intervertebral height measurement,lumbosacral joint angle,sacral platform angle,sacral inclination angle,and lower lumbar lordosis angle].Besides,lumbosacral sagittal plane parameters were ranked in the importance of variables by random forest model in R software,and then significant variables were fitted with multiple linear regression.The changes between parameters before and after treatment were analyzed and compared by paired sample t-test. RESULTS AND CONCLUSION:(1)A total of 57 patients with L5/S1 lumbar disc herniation were included in this study,and the symptoms and imaging features of the patients were significantly relieved to a large extent.(2)Before treatment,there were 4 cases of grade 1,29 cases of grade 2 and 24 cases of grade 3 according to the Classification of Michigan State University.After treatment,there were 48 cases of grade 1 and 9 cases of grade 2.(3)The random forest model suggested that intervertebral height,lumbar curve index,sacral inclination angle,and lower lumbar lordosis angle changed significantly in L5/S1 disc herniation reabsorption,and the order of their change significance was lumbar curve index>intervertebral space height>sacral inclination angle>lower lumbar lordosis angle.(4)Lumbar curve index,lumbar lordosis and sacral platform angle increased,with statistical significance(P<0.05).There were no significant differences in disc angle,intervertebral height,lower lumbar lordosis angle,sacral inclination angle or lumbosacral joint angle(P>0.05).(5)Lumbar curvature index was the most significant parameter of the lumbosacral sagittal plane in herniated disc reabsorption.In addition,lumbar curve index,sacral inclination angle,and lower lumbar lordosis angle are commonly used clinically to describe the change of lumbar curvature,suggesting that L5/S1 disc herniation reabsorption is correlated with the change of lumbar curvature.It is indicated that in the treatment of lumbar disc herniation,a clinical cure can be achieved by improving or restoring the disordered lumbar curvature.

Objective:To analyze the correlation between the body composition and cardiorespiratory fitness (CRF) decline in physical examination population of different genders.Methods:Clinical data of the cardiopulmonary exercise testing (CPET) and body composition analysis of 439 people who received physical examination in the Medical Examination Center of Peking University Third Hospital from May 2021 to September 2021 were retrospectively analyzed. The general data, physical examination, biochemical parameters, body composition and CPET results were collected. The subjects were divided into normal group and decline group according to the percentage of peak oxygen uptake (VO 2peak) levels ≥ 85% or<85%. Multivariate logistic regression was applied to investigate the influencing factors of CRF decline in subjects of different genders. Results:Among men, total cholesterol and triglyceride in the decline group were significantly higher than those in the normal group [(5.097±0.890) vs (4.865±0.856) mmol/L, (1.778±1.200) vs (1.485±0.709) mmol/L], and the blood homocysteine (Hcy) and skeletal muscle index were significantly lower than those in the normal group [13.00 (11.30, 15.90) vs 13.80 (12.05, 17.10) μmol/L, (7.89±0.65) vs (8.08±0.64) kg/m 2] (all P<0.05). Among women, skeletal muscle index in the decline group was significantly lower than that in the normal group [(6.21±0.52) vs (6.53±0.56)kg/m 2], and percent body fat was significantly higher than that in the normal group [(32.83±4.92)% vs (31.21±4.55)%] (all P<0.05). The elevation of triglyceride level ( OR=1.487, 95% CI: 1.042-2.121) and visceral fat area ( OR=1.032, 95% CI: 1.014-1.051) were positively correlated with the decline of CRF in man, the decrease of skeletal muscle index ( OR=0.215, 95% CI: 0.106-0.435) and the increase of percent body fat ( OR=1.149, 95% CI: 1.060-1.245) were positively correlated with the decrease of CRF in women (all P<0.05). Conclusions:There is a correlation between body composition and CRF decline in physical examination population of different genders. Men should control visceral fat more effectively, and women should pay attention to increase muscle mass while reducing body fat, in order to improve CRF.

The coming out of electromagnetic navigation bronchoscopy gives exciting solution for diagnosis and even treatment of peripheral pulmonary nodules. It breaks the barriers of traditional bronchoscopy, and gives live visible imaging guidance for operators during biopsy of peripheral pulmonary nodules. The electromagnetic navigation bronchoscopy system can intelligently recognize and reconstruct the bronchial tree of the patients, and generate visible data and virtual guidance for the operators. It can perceive real-time magnetic localization of the signal, so as to precisely guide the navigational or biopsy tools. This review introduced the artificial intelligence configuration of the electromagnetic navigation bronchoscopy system based on the Veran system, and gave some improvement advices based on the defects of the system. In this way, we hope to promote the development and better clinical application of electromagnetic navigation bronchoscopy system.

Nowadays, the development of the medical instrument industry makes rapid changes in clinical practice. Hybridization of latest technology is playing an increasingly important role in the diagnosis and treatment of disease. Especially, the trend of the integration of three-channel hybrid technology in diagnosis and treatment of early lung cancer has become increasingly obvious. This paper will focus on the technical advance of the three-channel multi- mirror robot and its application in the diagnosis and treatment of early lung cancer.