Objective To investigate the effect of up‐regulation and down‐regulation of HSPC238 on the RB gene mRNA and pRb protein .Methods PcDNA3 .1‐HSPC238 vector and PLL3 .7‐HSPC238 vector was transiently transfected into HepG2 cells re‐spectively .The level of RB mRNA was detected by real‐time PCR and pRb was detected by Western blotting .Results The level of RB mRNA and pRb in up‐regulation group both increased compared with control grops respectively .Conversely ,the level of RB mRNA and pRb in up‐regulation group both decreased compared with control grops respectively .Above results were all statistically significant(P<0 .05) .Conclusion HSPC238 could have a positive effect on the expression of the RB gene .

Objective Objective To explore the reasons of lung hypervolemia after liver transplantation and the corresponding treatment strategies.Method 291 patients received liver transplantation,in which 35 cases underwent pulmonary edema at early stage (pulmonary hypervolemia group),and the rest without pulmonary hypervolemia served as control group.Average central venous pressure (CVP) was recorded pre-,intra-and post-operatively.Total intake,total discharge and fluid balance were also recorded intraoperatively and 3 days post-operatively.Result In pulmonary hypervolemia group,CVP was (12.33 ± 5.08),(14.33 ± 3.03) and (16.50 ± 4.57) mmHg pre-,intra-and post-operatively,significantly higher than that in control group (P＜0.05 for all).Total intake,total discharge and fluid balance in pulmonary hypervolemia group were significantly higher than those in control group intraoperatively and 3 days post-operatively (P＜0.05 for all).After diuretic therapy and hemodialysis,30 cases in pulmonary hypervolemia group recurred,and 5 cases died of infection.Conclusion Pulmonary hypervolemia at early stage after liver transplantation is related to fluid balance.The reasonable control of total intake,total discharge and fluid balance is necessary.

Objective To evaluate the role of spinal c?Jun N?terminal kinase ( JNK ) signaling pathway in incisional pain in rats. Methods Sixty?three adult male Sprague?Dawley rats, weighing 200-250 g, were randomly divided into 3 groups ( n=21 each) using a random number table: incisional pain group ( IP group) , dimethyl sulfoxide ( DMSO) group, and JNK inhibitor SP600125 group ( SP group) . A 1?cm longitudinal incision was made through skin, fascia and muscle of the plantar aspect of the hindpaw in anesthetized rats. In group DMSO, 10% DMSO 10 μl was injected intrathecally at 30 min before surgery. In group SP, SP600125 25 μg (in 10 μl of 10% DMSO) was injected intrathecally at 30 min before sur?gery. Six rats in each group were sacrificed, and the mechanical paw withdrawal threshold ( MWT) and thermal paw withdrawal latency ( TWL) were measured at 24 h before establishment of the model and 2, 6, 24, 48 and 72 h after establishment of the model. After measurement of the pain threshold at 24 h before establishment of the model and 6, 24, 48 and 72 h after establishment of the model, the lumbar segment of the spinal cord was removed for determination of the expression of phosphorylated JNK ( p?JNK) by im?munofluorescence. Results The MWT was significantly lower, the TWL was shorter, and the expression of p?JNK was lower at each time point after establishment of the model than at 24 h before establishment of the model in group IP (P<0?05). Compared with group IP, the MWT was significantly increased, the TWL was prolonged, and the expression of p?JNK was down?regulated at each time point after establishment of the model in group SP ( P<0?05) , and no significant change was found in the parameters mentioned a?bove in group DMSO ( P>0?05) . Conclusion Spinal JNK signaling pathway is involved in the develop?ment and maintenance of incisional pain in rats.

Objective To evaluate the diagnostic value of serum α-L-fucosidase (AFU)in primary hepatic carcinoma(PHC)by using the meta analysis method.Methods The databases of Cochrane Library,PubMed,web of knowledge(Medline,BIOSIS Pre-views),Springer link and Science Direct were retrieved from January 1997 to December 2013.The domestic databases of CBMdisc (Chinese BioMedical Literature on disc),CNKI,Wangfang and VIP(VIP Database for Chinese Technical Periodicals)were retrieved from January 1984 to December 2013.Retrieval languages were limited to Chinese and English.The related literatures on the study of serum AFU diagnostic value for PHC were collected and the included studies meeting the inclusion criteria were performed the quality assessment.The meta-Disc 1 .4 software was adopted to conduct the analysis for comprehensively evaluating serum AFU value in the diagnosis of PHC.Results 20 articles were included (15 articles in Chinese and 5 articles in English).A total of 2 114 cases in the patients groups and 5 718 cases in the control groups were analyzed.The heterogeneity test was carried out on the in-cluded 20 articles,suggesting that the heterogeneity of the included studies was caused by the non-threshold effect,so the random effects model was selected for conducting the meta-analysis.And the pooled sensitivity was 0.77,the pooled specificity was 0.87, the pooled positive likelihood ratio was 5.37,the pooled negative likelihood ratio was 0.28,the pooled diagnostic odds ratio was 20. 47 and the SROC area under the curve(AUC)was 0.87.Conclusion Serum AFU has highly sensitivity and specificity for the diag-nosis of PHC and has reference value for its clinical diagnosis.

Objective:To construct the recombinant eukaryotic expression vector pCDNA3.1-MT2A and to investigate the cellular localization of MT2A protein in 293T and SMCC7721cell lines.Methods: Gene synthesis method was used to synthetic gene MT2A,added a Kozak sequence and His tag sequence at the N-terminus,the amplified target gene was connected to the pcDNA3.1(+) vector which was double digested between the BamH Ⅰ and Not Ⅰ.After transformation to E.coli DH5α, the positive clones were picked for plasmid extraction then Electrophoretic and sequenced.The pCDNA3.1-MT2A plasmids which passed through electrophoretic and sequenced were transfected 293T and SMMC7721 cell lines by liposome method,and then observed their expression and localization in eukaryotic cells by laser confocal microscopy.Results: The recombinant plasmid pCDNA3.1-MT2A was confirmed by restriction analysis and DNA sequencing,the sequence of the target gene MT2A was entirely correct,eukaryotic expression vector was successfully constructed and cell lines which had transfected recombinants could see the expression of green fluorescent protein in the cytoplasm.Conclusion:Successfully constructed fusion gene of pCDNA3.1-MT2A and expressed in eukaryotic cells,we found that the MT2A was mainly localized in the cytoplasm of 293T and SMMC7721 cell lines.The findings can help us to lay the foundation for the functions of MT2A in hepatoma cells.

Objective Dilated cardiomyopathy (DCM) is generally considered to be accompanied by both left and right ventricular dysfunction,but most studies only analyze the left ventricular function. In this study, we evaluated the effect of arotinolol on right ventricular function in patients with DCM. Methods Right ventricular ejection fraction (RVEF) and right ventricular diameter (RVD) were measured by two-dimensional echocardiography (2-DE) in 33 DCM patients; RVEF measured by first-pass radionuclide angiography (FPRA) was compared with that by 2-DE. Results The treatment with arotinolol for one year resulted in a reduction in the right ventricular diameter (baseline, 23.0 ± 8.3 mm vs after one-year treatment, 20.7 ± 5.4 mm; P=0.004 ) and an associated increase in ejection fraction (baseline, 36.9 ± 10.3% vs after one-year treatment, 45.8 ± 9.6%; P ＜ 0.001 ); there is a high correlation between the 2-DE method and radionuclide ventriculographic method. The correlation coefficient is 0.933 (P＜0.001). Conclusion Arotinolol therapy could not only improve left ventricular function, but also improve right ventricular function in DCM patients.

Objective To investigate the effectiveness and safety of coaxial catheter technique in carotid artery stent implantation via radial artery approach.Methods The general and clinical data of patients,who underwent carotid artery stent implantation via radial artery approach at the Department of Neurology,Daxing Teaching Hospital of Capital Medical University of China between January 2021 and October 2022,were retrospectively analyzed.During the operation,coaxial catheter technology was used to make a 6F catheter inserting into the target vessel for performing carotid stent implantation,and the rate of successful catheter placement,surgical success rate,and perioperative complications were analyzed.Results A total of 40 patients,who underwent carotid artery stent implantation via radial artery approach,were enrolled in this study.The involved vessels included left internal carotid artery(n=16),right internal carotid artery(n=24),type Ⅰaortic arch(n=13),type Ⅱ aortic arch(n=20),type Ⅲ aortic arch(n=7),and bovine aortic arch(n=1).The rate of successful catheter placement was 100％,the surgical success rate was 95％,and no procedure-related complications occurred.The time spent on surgery was(34.4±13.6)min.No patients developed symptoms of cerebral infarction or myocardial infarction in 30 days after the operation.Conclusion The use of coaxial catheter technology can make the catheter inserting into the target vessel quickly and avoid repeated catheter exchange.Coaxial catheter technology is safe and effective in performing carotid artery stent implantation via radial artery approach.(J Intervent Radiol,2023,32:1169-1173)

Objective To explore the prognostic factors of new-onset diabetes mellitus(NODM)in patients with pancreatic cystic tumor after distal pancreatectomy(DP).Methods Between January 2010 and December 2019,92 patients with cystic pancreatic tumors in our hospital underwent laparoscopic DP.According to the inclusion and exclusion criteria,a total of 74 cases were included and divided into NODM group or normal glucose metabolism group based on whether postoperative NODM occurred.A univariate analysis was used to evaluate the prognostic factors of laparoscopic DP for pancreatic cystic tumors.P<0.05 was considered statistically significant,OR>4 was considered as a potential prognostic factor of clinical significance for NODM.Results NODM was diagnosed in26 cases(35.1%),with a median diagnosis time of 9 months(range,3-56 months)after surgery.Univariate analysis showed that transecting pancreas in the neck(OR = 11.000,P = 0.000),BMI≥25.0(OR = 4.333,P = 0.007),and family history of diabetes mellitus(OR =5.000,P =0.004)were prognostic factors of postoperative NODM.Conclusions When performing DP for pancreatic cystic tumors,it is advisable to preserve as much pancreatic tissue as possible and avoid cutting off the pancreas in the neck.Precise postoperative strategy of glucose metabolism surveillance for patients with BMI≥25.0 and family history of diabetes mellitus should be promoted.

Objective:To analyze the clinical and radiological features of patients with hypoplasia of the internal carotid artery.Methods:Four patients with hypoplasia of the internal carotid artery (including 3 patients with congenital absence of the internal carotid artery), admitted to our hospital from January 2010 to December 2021, were chosen in our study. The clinical data and imaging features of these patients were retrospectively analyzed.Results:The age of these patients ranged from 31 to 73 years, and two patients were female. Clinically,2 patients presented with dizziness, 1 patient presented with limb weakness, and 1 patient was asymptomatic. In 3 patients with congenital absence of the internal carotid artery, DSA results showed that the internal carotid artery was not developed, and CT bone window showed that the internal carotid artery canal was absent; 1 patient with hypoplasia of the internal carotid artery showed thin imaging in DSA results. One patient was combined with anterior communicating artery aneurysm and left internal carotid artery aneurysm. One patient was with vertebral arterial dolichoectasia. The collateral circulation compensation: type A was noted in 3 patients and type C was noted in 1 patient.Conclusion:The patients with hypoplasia of the internal carotid artery are usually asymptomatic, and patients with congenital absence of the internal carotid artery can have ischemic symptom; these patients can be complicated with vascular abnormalities such as aneurysm and vascular thickening.

Objective:To analyze the clinical and radiological features of patients with hypoplasia of the internal carotid artery.Methods:Four patients with hypoplasia of the internal carotid artery (including 3 patients with congenital absence of the internal carotid artery), admitted to our hospital from January 2010 to December 2021, were chosen in our study. The clinical data and imaging features of these patients were retrospectively analyzed.Results:The age of these patients ranged from 31 to 73 years, and two patients were female. Clinically,2 patients presented with dizziness, 1 patient presented with limb weakness, and 1 patient was asymptomatic. In 3 patients with congenital absence of the internal carotid artery, DSA results showed that the internal carotid artery was not developed, and CT bone window showed that the internal carotid artery canal was absent; 1 patient with hypoplasia of the internal carotid artery showed thin imaging in DSA results. One patient was combined with anterior communicating artery aneurysm and left internal carotid artery aneurysm. One patient was with vertebral arterial dolichoectasia. The collateral circulation compensation: type A was noted in 3 patients and type C was noted in 1 patient.Conclusion:The patients with hypoplasia of the internal carotid artery are usually asymptomatic, and patients with congenital absence of the internal carotid artery can have ischemic symptom; these patients can be complicated with vascular abnormalities such as aneurysm and vascular thickening.