Effect of Head-Mounted Virtual Reality Display on the Visual Function of Adult Myopia / 医学研究杂志

Objective To evaluate the effect of head-mounted virtual reality display on the visual function of adult myopia.Methods Thirty-four myopia patients were divided into two groups by random number table method:test group(n=18)and control group(n=16).After routine eye examination of the subjects,the naked vision,corrected vision,dynamic stereopsis,near stereopsis,contrast sensitivity,assemble value,disperse value,positive relative accommodation(PRA),negative relative accommodation(NRA),flexibility of accommodation,and amplitude of accommodation(AMP)before the test,after the test 1 time and after the test 10 times;the visual fatigue questionnaire score and the visual work ability answer score were performed before the test and after the test 10 times.Results There was significantly statistically significant of naked eye vision in test group after the test 10 times compared with the pre-test and the control group(P were 0.040,0.011);There was significantly statistically significant in assemble value of the test group after the test 10 times compared with the pre-test and the control group(P were 0.036,0.010);there were significantly statistically signifi-cant in the NRA and adjustment flexibility of the test group compared with the pre-test and the control after after the test 10 times(P were＜0.0001,＜0.0001,0.008,0.017);there were not statistical differences in corrected visual acuity,contrast sensitivity,spread value,dynamic stereopsis,near stereopsis,PRA,AMP,visual fatigue questionnaire scores and visual work ability were not statistically significant in comparison between the control group and the test group on the corresponding time points(P＞0.05).Conclusion This is helpful to improve some of the visual function parameters of myopia patients appropriate using of head-mounted virtual reality technology training such as naked vision,NRA,insufficient collection,and flexibility of adjustment.

Drug resistance and homology of diarrheagenic Escherichia coli in sentinel hospital of Fengxian District of Shanghai， 2019‒2022 / 上海预防医学

ObjectiveWe conducted a drug resistance and homology analysis of diarrheagenic Escherichia coli （DEC） in Fengxian District of Shanghai in order to provide a basis for clinical rational drug use， risk monitoring and early warning. MethodsDEC were isolated from diarrheal patients in Fengxian District， Shanghai from 2019 to 2022. The minimum inhibitory concentrations （MIC） of 21 drugs to the DEC were determined. Genotyping and homology analysis were conducted with pulsed-field gel electrophoresis （PFGE）. ResultsThe DEC detection rate of diarrhea cases was 18.99% （131/690）， including enteroaggregative E.coli （EAEC） 64.89% （85/131）， enterotoxigenic E.coli （ETEC） 22.14% （29/131）， enteropathogenic E.coli （EPEC） 12.21% （16/131）， and enterohemorrhagic E.coli （EHEC） 0.76%（1/131）. The DEC detection showed obvious seasonal characteristics with a high incidence in summer. The DEC multidrug resistance rate was 66.41% with a total of 65 drug resistance profiles. The five antimicrobial drugs with the highest resistance rate were ampicillin （60.31%）， nalidixic acid （51.91%）， cefazolin （50.38%）， tetracycline （44.27%）， and cotrimoxazole （35.11%）. The rate of DEC resistance to levofloxacin was significantly increased from 2019 to 2022. Cluster analysis showed that the similarity of 85 EAEC cluster was 58.4%‒100.0%， and 69 band patterns were obtained. The similarity of 29 ETEC cluster was 58.5%‒100.0%， and 13 band patterns were obtained， including 2 dominant band types. The similarity of 16 EAEC clusters was 53.9%‒100.0%， and 15 band patterns were obtained. Five groups of homologous strains were found， consistent with the resistance phenotypes. ConclusionAmong the diarrhea cases， the DEC epidemic intensity is high， the drug resistance situation is severe， and the risk of outbreak infection is high in Fengxian District， Shanghai. Therefore， health monitoring and prevention need to be strengthened.

Identification of oral cancer cell-induced changes in gene expression profile of lymphatic endothelial cell.

Understading functional properties of tumor-derived lymphatic endothelial cells (TLEC) are relevant for blocking lymphatic metastasis. The changes of lymphatic endothelial cells (LEC) cocultured with oral cancer cells in a vitro model were examined. TLEC, in contrast to LEC, were more proliferative and have enhanced ability of lymphangiogenesis and anti-apoptosis. Gene microarrays revealed that 677 unique genes had two-fold or higher change between the two groups. Differential expressions of selected genes were confirmed by real-time PCR. Our results indicate that TLEC display abnormal characteristics and are distinct at the molecular level. Manipulation of TLEC is encouraging for therapy of lymphatic metastasis.

Prognosis and influencing factors of platinum sensitive recurrent ovarian cancer treated by secondary cytoreduction surgery in patients with unsatisfactory primary cytoreduction surgery / 国际肿瘤学杂志

Objective:To investigate the prognosis and influencing factors of secondary cytoreduction surgery (SCS) in patients with platinum-sensitive recurrent ovarian cancer whose tumor reduction with unsatisfactory primary cytoreduction surgery.Methods:The clinical and follow-up data of 116 patients with platinum-sensitive recurrent ovarian cancer whose tumor reduction with unsatisfactory primary cytoreduction surgery and received the first diagnosis and operation in Shanxi Provincial Cancer Hospital from January 2005 to December 2018 were retrospectively analyzed. Among them, 33 patients received SCS+chemotherapy and 83 patients received chemotherapy alone. In order to eliminate the component differences in general clinical data between the two groups, 28 pairs total 56 patients were selected from each group to form a matching cohort by propensity score matching, and their data were analyzed. The main outcome measures were progression-free survival (PFS) and overall survival (OS). Kaplan-Meier method was used to draw the survival curve accompanied with log-rank test. Cox regression model was used to analyze the prognostic factors of patients with platinum-sensitive recurrent ovarian cancer whose tumor reduction with unsatisfactory primary cytoreduction surgery.Results:The median PFS of 56 matched patients with platinum-sensitive recurrent ovarian cancer whose tumor reduction with unsatisfactory primary cytoreduction surgery was 9.0 months. The 0.5- and 1-year PFS rates were 67.9% and 25.0% respectively. The median OS of 56 patients was 57.5 months. The 3- and 5-year OS rates were 60.7% and 39.3% respectively. The median PFS was 10.5 months in the SCS+chemotherapy patients and 7.5 months in the chemotherapy alone patients, and the 0.5- and 1-year PFS rates were 82.1% vs. 57.1% and 32.1% vs. 21.4% respectively, with a statistically significant difference ( χ2=3.88, P=0.049). The median OS was 70.0 months in the SCS+chemotherapy patients, and 60.0 months in the chemotherapy alone patients, and the 3- and 5-year OS rates of the SCS+chemotherapy patients and chemotherapy alone patients were 88.5% vs. 64.3% and 70.0% vs. 53.0%, with no statistically significant difference ( χ2=3.63, P=0.057). Univariate analysis showed that International Federation of Gynecology and Obstetrics (FIGO) staging ( HR=3.17, 95% CI: 1.32-7.59, P=0.010) and treatment-free interval from the last platinum (TFIp) ( HR=0.35, 95% CI: 0.18-0.68, P=0.002) were independent influencing factors of PFS in patients with platinum-sensitive recurrent ovarian cancer whose tumor reduction with unsatisfactory primary cytoreduction surgery. Carbohydrate antigen 125 ( HR=2.46, 95% CI: 1.21-5.00, P=0.013) was an independent influencing factor of OS in patients with platinum-sensitive recurrent ovarian cancer whose tumor reduction with unsatisfactory primary cytoreduction surgery. Multivariate analysis showed that FIGO staging ( HR=2.95, 95% CI: 1.18-7.36, P=0.020) and TFIp ( HR=0.33, 95% CI: 0.16-0.66, P=0.002) were independent prognostic factors of PFS. Conclusion:For platinum-sensitive recurrent ovarian cancer patients who do not achieve satisfactory tumor reduction after primary cytoreduction surgery, but achieve clinical complete response after postoperative chemotherapy, SCS may prolong their PFS after treatment, and OS also shows a beneficial trend after treatment, but with no statistically significant difference. FIGO staging at initial treatment and TFIp before the first relapse are independent prognostic factors of PFS in patients with platinum-sensitive recurrent ovarian cancer whose tumor reduction with unsatisfactory primary cytoreduction surgery.

Effect of apatinib combined with fluzoparib on proliferation ability of human ovarian cancer cisplatin-resistant cells / 肿瘤研究与临床

Objective:To investigate the effect of apatinib and fluzoparib on the proliferation ability of cisplatin-resistant human ovarian cancer cells.Methods:Human ovarian cancer cells SKOV3 and cisplatin-resistant SKOV3/DDP cells of human ovarian cancer were treated with different concentrations of 1, 2, 4, 8, 16, 32, 64,128 μg/ml cisplatin at different times; CCK-8 method was used to detect the proliferation rate and half-inhibitory concentration ( IC50) of SKOV3 and SKOV3/DDP cells, and the drug-resistance fold of SKOV3/DDP cell was also calculated. SKOV3/DDP cells were treated with different concentrations of apatinib (4, 8, 16, 32, 64 μmol/L) and fluzoparib (148.15, 222.22, 333.33, 500.00, 750.00 μmol/L) for 24 h, 48 h and 72 h, respectively; the cell proliferation rate was determined by using CCK-8 method and IC50 was calculated. SKOV3/DDP cells were divided into the blank control group (cells untreated with drugs), cisplatin group, cisplatin + apatinib group, cisplatin + fluzoparib group, cisplatin + fluzoparib + apatinib group, and drug intervention was given in each group; the inhibition rate of cells in each group was detected by using CCK8 method. Results:The proliferation rate of SKOV3 cells treated with the same concentration of cisplatin for the same time was lower than that of SKOV3/DDP cells, and the differences were statistically significant (all P < 0.05). The IC50 of SKOV3/DDP cells treated with 4, 8, 16, 32, 64 μmol/L apatinib was 742.1μmol/L at 24 h, 156.8 μmol/L at 48 h, and 77.5 μmol/L at 72 h. Compared with the control group, the proliferation rate of SKOV3/DDP cells treated with apatinib at an effective concentration greater than 32 μmol/L was significantly decreased, and the differences were statistically significant (all P < 0.05). The IC50 of SKOV3/DDP cells treated with 148.15, 222.22, 333.33, 500.00, 750.00 μmol/L fluzoparib was 878.5 μmol/L at 24 h, 406.7 μmol/L at 48 h, and 283.3μmol/L at 72 h. When the effective concentration of fluzoparib was more than 333.33 μmol/L for 24 h, the proliferation rate of SKOV3/DDP cells was lower than that of the control group, and the differences were statistically significant (all P < 0.05). Compared with the control group, the proliferation rate of SKOV3/DDP cells was decreased when the effective concentration was more than 148.15 μmol/L at 48 h and 72 h, and the differences were statistically significant (all P < 0.05). The cell proliferation rate of 5 μg/ml cisplatin + 64 μmol/L apatinib group was lower than that of 5 μg/ml cisplatin group [(40.4±1.4)% vs. (62.7±1.4)%, t = 20.22, P < 0.001]. The cell proliferation rate of 5 μg/ml cisplatin + 290 μmol/L fluzoparib group was lower than that of 5 μg/ml cisplatin group [(5.2±0.4)% vs. (62.7±1.4)%, t = 52.04, P < 0.001]. The cell proliferation rate of 5 μg/ml cisplatin + 64 μmol/L apatinib + 290 μmol/L fluzoparib group was lower than that of 5 μg/ml cisplatin group [(0.3±0.8)% vs. (62.7±1.4)%, t = 53.98, P < 0.001]. The 5 μg/ml cisplatin + 64 μmol/L apatinib + 290 μmol/L fluzoparib group had the lowest proliferation rate of SKOV3/DDP cells, which was lower than that of 5μg/ml cisplatin + 64 μmol/L apatinib group and 5 μg/ml cisplatin + 290 μmol/L fluzoparib group (all P < 0.001). Conclusions:Apatinib and fluzoparib can enhance the sensitivity of human ovarian cancer cisplatin-resistant cells SKOV3/DDP to cisplatin, and the combination of drugs can produce the stronger inhibitory effects and reverse cisplatin resistance of ovarian cancer.

Development of a fluorescence resonance energy transfer (FRET) immunoassay for the measurement of serum insulin / 细胞与分子免疫学杂志

Objective To investigate the fluorescence resonance energy transfer (FRET) effect between dylight (DL) and AuNP (AuNP), and to construct a new fluorescence immunoassay for insulin in combination with the immunocompetition method. Methods Insulin antigen (Ag) and insulin antibody (Ab) were conjugated with DL and AuNP respectively to form DL-Ag conjugate and AUNp-AB conjugate. A novel fluorescence immunoassay for insulin was developed on the basis of FRET effect and the immune competition response between them. Then the performance of the method was evaluated and its application in actual samples was explored. Results The fluorescence immunoassay showed high sensitivity (0.015 ng/mL), short measurement time (4 min) and good specificity. It was successfully used in the measurement of serum insulin, and the recovery was between 96.9% and 121.1%. Conclusion FRET effect between AuNP and DL can be applied to develop a fluorescence immunoassay for the measurement of serum insulin.

Progress of apatinib in the treatment of ovarian cancer / 中国综合临床

Ovarian cancer (OC) has the highest mortality rate among gynecological malignancies. Its treatment has always been a difficult problem and the focus of exploration in the medical field. In recent years, anti-angiogenic drugs have shown good anticancer effects in the treatment of ovarian cancer. As a new generation of antiangiogenic drugs, apatinib has been proved to have a good therapeutic effect in the treatment of ovarian cancer with less adverse reactions. Therefore, we review the research progress of apatinib in ovarian cancer.

Pulmonary perfusion defect index, pulmonary artery obstruction index and right heart function parameters for evaluating the severity of pulmonary embolism / 中国基层医药

Objective:To investigate the value of pulmonary perfusion defect index (PPDI), pulmonary artery obstruction index (PAOI) and right heart function parameters in the evaluation of severity of pulmonary embolism.Methods:The clinical data of 108 patients with pulmonary embolism who received treatment in The Second Hospital of Jiaxing from January 2019 to June 2021 were retrospectively analyzed. These patients were divided into high-risk ( n = 25), moderate-risk ( n = 32), and low-risk ( n = 51) groups according to the severity of pulmonary embolism. PAOI, PPDI, right ventricular short axis maximum diameter (RV), left ventricular short axis maximum diameter (LV), ratio of right/left right ventricular short axis maximum diameter (RV/LV) were determined in each group. PPDI, PAOI and right ventricular function parameters were correlated with the severity of pulmonary embolism. The area under the receiver operating characteristic curve, specificity and severity of PPDI, PAOI, RV, LV, RV/LV used alone and in combination to predict the severity of pulmonary embolism were analyzed. Results:PPDI, PAOI, RV, and RV/LV in the high-risk group were (32.52 ± 10.85)%, (45.01 ± 15.02)%, (50.32 ± 12.32) mm, (1.42 ± 0.45), respectively, which were significantly lower than (5.32 ± 1.85)%, (12.52 ± 3.25)%, (37.25 ± 8.52) mm, (0.96 ± 0.21) in the low-risk group, and LV was significantly lower in the high-risk group than that in the low-risk group [(35.14 ± 10.52) mm vs. (44.02 ± 15.21) mm, t = 13.95, 11.91, 2.62, 6.09, 5.44, all P < 0.05]. PPDI, PAOI, RV, and RV/LV in the moderate-risk group were (18.62 ± 6.02)%, (28.65 ± 8.65)%, (45.85 ± 10.02) mm, and (1.20 ± 0.32), respectively, which were significantly higher than those in the low-risk group ( t = 14.75, 12.06, 4.18, 4.13, all P < 0.05). There was no significant difference in LV between moderate-risk and low-risk groups ( t = 1.51, P > 0.05). Spearman correlation analysis showed that PPDI, PAOI, RV, RV/LV were positively correlated with the severity of pulmonary embolism ( r = 0.87, 0.84, 0.45, 0.41, all P < 0.001). LV was negatively correlated with the severity of pulmonary embolism ( r = -0.27, P < 0.001). The receiver operating characteristic curve (ROC curve) showed that the areas under the receiver operating characteristic curve of PPDI, PAOI, RV, LV, RV/LV used alone or in combination to predict the severity of pulmonary embolism were 0.941, 0.911, 0.721, 0.693, 0.726, and 0.951, respectively (all P < 0.001). Conclusion:PPDI, PAOI and right heart function parameters can be used as effective indexes to dynamically monitor the severity of pulmonary embolism.

Effect of intrahepatic veno-venous communications on the consistency of hepatic venous pressure gradient and portal vein pressure gradient / 中华普通外科杂志

Objective:By using balloon occlusive hepatic angiography in cirrhotic portal hypertension to evaluate contrast doses on the detection rate of intrahepatic venous-lateral branch shunt (HVVC), and the effect on hepatic venous pressure gradient (HVPG) and portal vein pressure gradient (PPG).Methods:From Jan 2018 to Jun 2021, 131 patients received transjugular intrahepatic portosystemic shunt (TIPS) at Beijing Shijitan Hospital.Results:A positive correlation between PVP and weged hepatic venous pressure (WHVP) ( r=0.241, P=0.001) was found when only by right hepatic vein approach. Ten ml of iodine contrast medium when compared to 5ml doses found more cases of intrahepatic venous-venous lateral branch shunt. The mean PPG of patients with HVVC was significantly higher than the mean of HVPG( P<0.05).The right hepatic vein was the only reliable vein by which WHVP was measured. Conclusions:Right hepatic vein manometry,adequate ballon occlusion and using 10ml of iodine contrast help get reliable WHVP and found HVVC; HVVC can affect the consistency of HVPG and PPG.

Advances in the treatment of platinum-resistant ovarian cancer with PARP inhibitors / 国际肿瘤学杂志

Poly ADP-ribose polymerase(PARP)inhibitor is a targeted biological agent for the treatment of ovarian cancer, which is mainly suitable for platinum-sensitive ovarian cancer patients. However, data from clinical trials showed that PARP inhibitors have certain therapeutic effect on platinum-resistant or platinum-refractory ovarian cancer patients. It may become a new hope for treatment of ovarian cancer patients in the future.

Research progress of influenza virus associated encephalopathy/encephalitis / 中华实用儿科临床杂志

Influenza virus infection mainly mediates pathology in respiratory tract, but recent years it has drawn widespread attention by its extrapulmonary complications.Among all the complications, influenza associated encephalo-pathy/encephalitis (IAE), which has high morbidity and mortality, is the most lethal one that causes death in critically ill cases, and even those patients who are cured commonly suffer from neurological sequelae.However, there is little knowledge about IAE in the international society.In this paper, the research progress in IAE would be reviewed from such aspects as clinical manifestations, epidemiologic data, risk factors, classification, treatment, prognosis and mechanism, for the purpose of deepening the comprehension of this disease.

Comparison of hereditary breast and ovarian cancer syndrome and sporadic ovarian cancer in ovarian cancer BRCA mutations / 中华妇产科杂志

Objective:To study the difference between BRCA gene mutations in hereditary breast and ovarian cancer syndrome (HBOC) and in sporadic ovarian cancer (SOC).Methods:This study was for exploratory research, the inclusion criteria were 284 patients with ovarian cancer admitted at Shanxi Provincial Cancer Hospital from November 2018 to December 2019, with high-throughput DNA sequencing including the full coding regions and exon-intron link regions of BRCA1 and BRCA2 gene. Pathogenic mutations in the BRCA gene of patients with ovarian cancer were collected and mutation site analysis was performed to compare phenotypic differences in pathogenic mutations between HBOC syndrome and SOC patients.Results:(1) Of the 284 ovarian cancer patients, seventy-seven had BRCA pathogenic mutations with a mutation rate of 27.1% (77/284), with BRCA1 mutation rate of 19.7% (56/284), BRCA2 gene 6.7% (19/284) and BRCA1/2 common mutation rate of 0.7% (2/284). Of the 284 patients with ovarian cancer, the pathogenic mutation rate in the BRCA gene in HBOC syndrome patients was 43.8% (32/73), which were significantly higher than that in SOC patients [21.3% (45/211); χ2=13.905, P<0.01]. Among BRCA1 gene mutation, the mutation rate in HBOC syndrome was higher than that of SOC [87.5% (28/32) vs 62.2% (28/45)], the BRCA2 gene mutation rate in patients with HBOC syndrome was lower than that in SOC patients [6.2% (2/32) vs 37.8% (17/45)], and there were statistically significant differences (all P<0.05). Two of the 77 patients with pathogenic mutations in the BRCA gene were multisite mutations, including one simultaneous two site mutation, one simultaneous three site mutation. There were 80 mutation sites with frameshift deletion mutations (55.0%, 44/80) and nonsense mutations (31.2%, 25/80). (2) Of the 73 patients with HBOC syndrome, 32 cases had pathogenic mutations in BRCA gene, including 28 cases in BRCA1, mainly in exon 11 and 24 (9 and 7 cases, respectively), and only two cases in BRCA2, both in exon 11; another two had multiple locus mutations. Of the 211 patients with SOC, 45 cases had pathogenic mutants in BRCA gene, including 28 cases in BRCA1, mainly in exon 11 and 24 (15 and 2 cases, respectively), and 17 cases in BRCA2, mainly in exon 11 (11 cases). (3) Thirty-four pathogenic mutation sites in BRCA gene were found newly, twenty of them were located in the BRCA1 gene, including a locus located on the intron 6, 301+1G>A, and the remaining 19 sites were located on the exons, including 283_286delCTTG, 68_69delAG, 132C>T, 514_547+3del37, 742delA, 1126_1129delAATA, 1196delA, 1352_1364del, 1465G>T, 2171delC, 2341G>T, 3359_3363delTTAAT, 4085_4086ins11, 4161_4162delTC, 4165_4166delAG, 4258G>T, 4338_4339del8insAGAA, 4468G>T, and 4783delA; fourteen sites were located in the BRCA2 gene, including a locus located on the intron 7, 631+1G>A, and the remaining 13 sites were located on the exons, including 2648delT, 2914A>T, 2950_2951insG, 4357+1G>A, 5054C>T, 5257A>T, 5291_5292insTC, 5913delT, 3593delA, 6091_6092insA, 6135_6136delTT, 7452delT, 9097_9098insA. A tal of 28 repeat mutations were located in the BRCA1 gene; among them, the site 5470_5477del8 was repeated 6 times, while 3 times in 981_982delAT. Conclusions:Patients with HBOC syndrome have a significantly higher rate of pathogenic mutation in the BRCA gene than that in patients with SOC. BRCA gene pathogenic mutation sites in HBOC syndrome patients occur commonly in exon 11 and 24 of BRCA 1 gene, while SOC patients occur mainly in exon 11 and 24 of BRCA1 gene and exon 11 of BRCA2 gene. The two loci of BRCA1∶5470_5477del8, BRCA1∶981_982delAT may be ancestor mutations in Chinese ovarian cancer patients, and 34 newly discovered pathogenic mutations in the BRCA gene, enriching the BRCA gene mutation spectrum in the Chinese population.

Direct intrahepatic portosystemic shunt in treatment of Budd-Chiari syndrome / 中华肝胆外科杂志

Objective:To study the efficacy of direct intrahepatic portosystemic shunt (DIPS) in treatment of Budd-Chiari syndrome (BCS).Methods:From January 1, 2015 to June 31, 2017, consecutive patients with BCS who were treated with DIPS at the Department of Interventional Therapy of Beijing Shijitan Hospital, the Liver Disease Research Center of Beijing Friendship Hospital and the General Surgery Department of Beijing Ditan Hospital were retrospectively analyzed. The symptoms, physical signs (including abdominal distension, ascites, pleural effusion, splenomegaly, hepatic encephalopathy) and perioperative laboratory results of these patients were collected and analyzed. Biochemical indicators including alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBil), direct bilirubin (DBil), and portal pressure gradient were compared before and 2 weeks after treatment. The patients were followed up for at least 3 years to assess their clinical symptoms, patency of shunt, oncological status and survival.Results:Of 67 patients with BCS who were included in the study, there were 45 males and 22 females, aged (38.12±23.22) years. The BCS classification of these patients were hepatic vein type ( n=65), including 62 patients with complete hepatic vein obstruction, 3 patients with hepatic vein occlusion due to thrombosis, and 2 patients with mixed hepatic vein and inferior vena cava occlusion. All 67 patients underwent DIPS with 93 stents being implanted. In addition, 43 patients underwent gastric coronary vein embolization, and 2 patients with mixed type of BCS underwent inferior vena cava stenting. The portal pressure gradient decreased from (22.17±9.16) mmHg (1 mmHg=0.133 kPa) to (9.87±4.75) mmHg, the difference was statistically significant ( P<0.05). Abdominal distension was relieved, at one month and ascites completely subsided in 3 months after operation. The liver congestion and swelling were obviously relieved. Comparison of patients 2 weeks after operation and before operation, ALT decreased from (65.28±27.75) U/L to (28.43±13.46)U/L, AST from (68.75±29.23) U/L to (26.92±13.33)U/L, TBil from (175.31±80.48)μmol/L to (45.08±26.54)μmol/L, DBil from (127.55±44.65)μmol/L to (35.12±10.77)μmol/L, and albumin increased from (31.56±7.22) g/L to (44.18±11.36)g/L, the difference was statistically significant (all P<0.05). All patients were followed up for at least 3 years. Shunt stenosis was detected in 5 patients (7.46%) with shunt expansion being performed, variceal bleeding in 2 patients (2.99%), ascites recurrence in 4 patients (5.97%) and hepatic encephalopathy in 2 patients (2.99%). No patients were diagnosed with hepatic cancer, and no patients died. Conclusion:DIPS was efficacious, safe and reliable to that BCS patients. It rapidly reduced portal venous pressure, relieved liver congestion, and restored liver morphology and liver function in these patients.

Surgical technique and efficacy of P. R.E.S.S. bladder cuff excision / 中华泌尿外科杂志

Objective:To explore the surgical technique and efficacy of pure retroperitoneoscopic extravesical standardized seeable (P.R.E.S.S.) technique for bladder cuff excision (BCE).Methods:Ninety five patients with UTUC from five domestic centers (30 cases from Changzheng Hospital, 21 cases from Peking University First Hospital, 20 cases from Yuhuangding Hospital, 21 cases from Dalian Medical University affiliated No.2 Hospital and 3 cases from General Hospital of Eastern Theater Command)between August 2017 and December 2020 were retrospectively analyzed. There were 57 males and 38 females with a mean age of (67.7±10.0) years and median tumor size of 3.0 cm. All patients underwent pure retroperitoneoscopic radical nephroureterectomy with a single surgical position and four (36 cases) or five (59 cases) trocar layout according to the surgeon’s prefer habit and experience. The demographics of the two groups were the age of [(66.3±11.2)years vs. (68.6±9.1)years], male/female ratio of (25/11 cases vs. 32/27 cases), body mass index of [(25.0± 3.0)kg/m 2 vs. (24.8±3.4)kg/m 2], tumor maximum diameter of [2.8(1.6, 3.5)cm vs. 3.0(2.0, 4.0)cm], left/right side tumor of(19/17 cases vs. 34/25 cases), T 1-2/T 3-4/Tis stage of(25/10/4 cases vs. 49/10/0 cases), and multifocal tumors of(3 cases vs. 2 cases), and the difference was not statistically significant( P>0.05). On the other hand, the differences of hydronephrosis of the operated kidney(13 cases vs. 39 cases, P=0.004), and tumor location (in renal pelvis or calyx or upper/middle/lower ureter being 23/9/4 cases vs. 35/4/20 cases, P=0.005), were statistically significant. The umbilical artery cord was used as anatomical landmark in the process of P. R.E.S.S. bladder cuff excision. The pelvic floor and extraperitoneal space around the ureter were expanded, the bladder wall was opened to form pneumovesicum, and a sufficient bladder cuff resection and exact bladder cuff closure was performed. Perioperative outcomes and follow-up data were analyzed, and the clinical outcomes between the four and five trocars were compared to evaluate the impact of trocar layout on the surgical outcomes. Results:There were 91(95.8%) cases successfully undergoing P. R.E.S.S. BCE technique, with one case converted to open BCE due to bleeding and three cases converted to distal ureter Hem-o-lok clipping because of poor exposure. Median operative time was 180(125, 230)min, and estimated blood loss was 100(50, 100)ml. The overall complication rate was 10.5%(10/95), including 2 cases(2.1%) of intraoperative bleeding, with 1 case treated by transfusion (400 ml), the other case converted to open surgery without transfusion. There were 8 cases of postoperative complications(8.4%), including 7 cases of Clavien-Dindo grade Ⅱ(3 cases of secondary hemorrhage, one case for each of drug allergy, acute renal insufficiency, blood creatinine increased to 490 μmol/L, or lung infection with lymphatic leakage), 1 case of grade Ⅲa(intestinal obstruction treated with insertion of the intestinal obstruction catheter under local anesthesia), and all these patients were discharged smoothly. The difference between the four and five trocars was not statistically significant in the following variables, including the rate of surgical conversion(8.3% vs. 1.7%), estimated intraoperative blood loss(100 ml vs. 60 ml), ratio of intraoperative lymph node dissection (25.0% vs.20.3%), P. R.E.S.S. bladder cuff excision success rate(91.7% vs.98.3%), the incidence of intraoperative and postoperative complications (13.8% vs.8.5%), pT 1-2/pT 3-4/pTis stage(22/11/3 cases vs.37/19/3 cases) and the proportion of recurrence or metastasis(8.3% vs.3.4%)(all P>0.05). However, the differences in the operation time(190 min vs.170 min, P=0.011)and postoperative hospital stay(5 d vs.6 d, P=0.005) were statistically significant. Conclusions:P. R.E.S.S. bladder cuff resection technique is safe and feasible during the procedure of pure retroperitoneoscopic radical nephroureterectomy by a single surgical position and facilitates seeable adequate bladder cuff excision by establishing an enlarged pelvic lateral extraperitoneal space and pneumovesicum. Five-trocar technique is more suitable for patients with lower ureteral tumors but may be associated with a longer postoperative hospital stay compared with the four-trocar technique.

Research progress in role of microRNAs in anesthesia-induced neural toxicity / 国际生物医学工程杂志

MicroRNAs (miRNAs) are small, single-stranded, non-coding RNAs that bind to target messenger RNA (mRNA), leading to changes in gene expression. Exposure to anesthetics in early or late intrauterine life in children may result in neurotoxicity and long-term neurocognitive decline in adulthood. This may be related to a variety of mechanisms that induce neuronal apoptosis and inhibit neurogenesis, in which miRNAs play a key role in this environment. MiRNAs are key regulators of gene expression, and their expression differs in response to internal and external environmental stimuli, including general anesthesia. More than 40 miRNAs such as sevoflurane, isoflurane, propofol, bupivacaine, and ketamine have been shown to have a regulatory role in anesthesia-induced neurotoxicity. In this paper, the research progress of differential expression of miRNAs that can be induced by different anesthetics were reviewed.

Quantitative measurement of iodine concentration in the liver using dual-energy CT in patients with oral amiodarone：a feasibility study / 中华放射学杂志

Objective:To explore the feasibility of dual-energy CT (DECT) in the evaluation of liver iodine concentration in patients on long-term oral amiodarone treatment (≥12 months).Methods:Eighteen subjects undergoing abdominal dual-energy CT who met the criterion in January 2017 were collected as a control group. Twenty-seven patients who received oral amiodarone treatment for more than 12 months from January 2017 to May 2019 were enrolled as an experimental group. The difference of CT value and iodine concentration of liver, pancreas and spleen in 140 kV, 100 kV and VNC images between experimental and control groups were measured and analyzed. The correlation between liver CT value and liver iodine concentration was analyzed by Spearman correlation.Results:The concentrations of iodine in the liver, pancreas and spleen of the experimental group were 0.2 (0.2, 0.4), 0.1 (0.1, 0.2) and 0.2 (0.1, 0.2) mg/ml, and those in the control group were 0.2 (0.1， 0.2), 0.1 (0.1, 0.2) and 0.1 (0.1, 0.2) mg/ml. The difference in the concentration of iodine of the liver was statistically significant ( Z=-3.354, P<0.05), however there was no significant difference in the concentration of pancreas and spleen between the two groups ( Z=-0.179 and -1.590, P>0.05). The CT values of 100 kV, 140 kV, VNC images in the experimental group [(74±18)， (70±10) and (71±5) HU] were higher than those in the control group [(60±6)， (59±6) and (62±6) HU], and the differences were statistically significant ( t=3.310, 4.205 and 5.241, P<0.05). There was a positive correlation between the CT value of 140 kV image and iodine concentration ( r=0.410, P<0.05). In the experimental group, the time difference of taking amiodarone was statistically significant ( P<0.05). Conclusions:DECT can be used to quantitatively measure the liver iodine concentration of patients with long-term oral amiodarone, and provides some biological indicators for the assessment of amiodarone induced liver injury.

Value of indocyanine green retention rate at 15 minutes in predicting the risk of hepatic encephalopathy after transjugular intrahepatic portosystemic shunt in liver cancer patients with portal hypertension / 临床肝胆病杂志

ObjectiveTo investigate the clinical value of indocyanine green retention rate at 15 minutes (ICG-R15), Child-Turcotte-Pugh (CTP) class, and Model for End-Stage Liver Disease (MELD) score in predicting post-transjugular intrahepatic portosystemic shunt (TIPS) hepatic encephalopathy (HE) in liver cancer patients with portal hypertension. MethodsA retrospective analysis was performed for the clinical data of 95 liver cancer patients with portal hypertension who underwent TIPS in Department of Interventional Therapy in Beijing Shijitan Hospital from January 2015 to June 2017, and according to the presence or absence of HE after TIPS, they were divided into HE group with 24 patients and non-HE group with 71 patients. ICG-R15, CTP class, and MELD score were determined for all patients before surgery. The t-test was used for comparison of normally distributed continuous data between two groups, and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups; the chi-square test and the Fisher’s exact test were used for comparison of categorical data between two groups. Univariate and multivariate logistic regression analyses were used to investigate the risk factors for HE after TIPS, and the receiver operating characteristic (ROC) curve was used to analyze the value of ICG-R15, CTP class, and MELD score in predicting HE. ResultsThe incidence rate of HE was 25.2% (24/95) within 12 months after TIPS. The univariate analysis showed that stent location (P=0.021), ICG-R15 (P=0.005), and CTP class (P=0.040) were associated with HE after TIPS. The multivariate analysis showed that stent located in the right portal vein (OR=3.373, 95% CI: 2.346~5.103, P=0.010) and ICG-R15＞30% (OR=2.107, 95% CI: 1.331~3.212, P=0.036) were independent risk factors for HE after TIPS in liver cancer patients with portal hypertension. The ROC curve analysis showed that ICG-R15, MELD score, and CTP class had an area under the ROC curve of 0.659, 0.638, and 0.621, respectively, in predicting HE after TIPS. ConclusionICG-R15 has a certain clinical value in predicting HE after TIPS in liver cancer patients with portal hypertension.

Gonadotropin-releasing hormone agonists for the protection of ovarian function in premenopausal patients treated by chemotherapy: a meta-analysis / 肿瘤研究与临床

Objective To evaluate systematically the effectiveness of gonadotropin-releasing hormone agonist (GnRHa) administration before chemotherapy and/or during chemotherapy for the protection of ovarian function in premenopausal women. Methods PubMed, Cochrane Library, Medline, Embase, China Biomedical Literature Database, CNKI were searched to collect the clinical randomized control trail (RCT) of ovarian function protection in premenopausal women receiving chemotherapy by using GnRHa. RevMan5.3 software was used to analyze the incidence of early premature ovarian insufficiency (POI), menstrual recovery rate, pregnancy rate and other indicators. Results A total of 12 articles were included, including a total of 1509 premenopausal women who received chemotherapy for malignant diseases. GnRHa combined with chemotherapy reduced the incidence of POI (OR = 0.36, 95％ CI 0.23-0.56, P < 0.01) and improved the menstrual recovery rate during follow-up (OR = 2.49, 95％ CI 1.72-3.60, P < 0.01). GnRHa combined with chemotherapy could increase the pregnancy rate of patients aged 35 years and older (OR = 2.04, 95％ CI 1.08-3.83, P = 0.03). Conclusion GnRHa administration before chemotherapy and/or during chemotherapy may prevent the chemotherapy damage to ovarian function, reduce the incidence of POI, and improve the recovery rate of menstruation.

Improved intercostal nerve block with ropivacaine in video-assisted thoracic surgery / 中国肿瘤临床

To compare two methods of injecting ropivacaine as an intercostal nerve blocker, and for postoperative pain control after video-assisted thoracic surgery (VATS) in lung cancer patients. Methods: From August 2018 to November 2018, 60 patients who had undergone VATS with a diagnosis of lung cancer, were randomly assigned into two groups: control and test. After the surgery, the control group was injected with an intercostal nerve blocker (0.25% ropivacaine) via the inner thorax by the traditional method, and the test group was injected with ropivacaine via the outer thorax by an improved method. The pain scale was evaluated using the Visual Analogue Scale (VAS) and Prince Henry Pain Scale (PHPS) at 12 h (T1), 24 h (T2), 48 h (T3), and 72 h (T4) after the surgery. The dosage of administered morphine and the adverse effects of ropivacaine after surgery were also evaluated. Results: Injecting ropivacaine to the intercostal nerve by means of both, outer and inner thoracic injection showed satisfied analgesia, as evaluated by VAS and PHPS scores, and there were no significant differences between the two methods at any time point of analysis (T1-T4, P>0.05). The dosage of administered morphine and the time with chest tube were similar (P>0.05) between the groups. However, there were a few cases of subpleural hemorrhage in the test group. Conclusions: Intercostal nerve block with ropivacaine by means of both, outer and inner thoracic injection, showed satisfied analgesia, although, outer thoracic injection is more flexible with fewer complications.

Effect of remifentanil on iron metabolism in spinal dorsal horn neurons of rats / 中华麻醉学杂志

Objective To evaluate the effect of remifentanil on iron metabolism in spinal dorsal horn neurons of rats.Methods The primary spinal dorsal horn neurons of rats were seeded in the culture plate at a density of 2× 105 cells/well and divided into 4 groups using a random number table method:control group (C group,n=40),remifentanil group (R group,n=40),divalent metal transporter 1 without iron-responsive element [DMT1 (-) IRE] siRNA group (siRNA group,n=32) and DMT1 (-) IRE siRNA plus remifentanil group (siRNA+R group,n=32).siRNA and siRNA+R groups were subjected to DMT1 (-) IRE siRNA transfection on day 3 of culture.R and siRNA+R groups were incubated for 60 min in the solution with remifentanil at a final concentration of 40 nmol/L.The contents of reactive oxygen species (ROS) and Fe2+ were determined by fluorescent probe method,the malondialdehyde (MDA) content was detected by TBA method,and the content of labile iron pool (LIP) was detected by calcein AM and iron chelator at the end of incubation with remifentanil in R and siRNA+R groups and at the corresponding time points in the other groups.The expression of DMT1 (-) IRE and DMT1 (+) IRE was determined by Westem blot in C and R groups.Results Compared with C group,the expression of DMT1 (-) IRE in the spinal dorsal horn neurons was significantly up-regulated,the contents of Fe2+,LIP,ROS and MDA were increased (P＜0.05),and no significant change was found in the expression of DMT1 (+) IRE in R group (P＞0.05).Compared with R group,the contents of Fe2+,LIP,ROS and MDA in the spinal dorsal horn neurons were significantly decreased in siRNA+R group (P＜0.05).Conclusion Remifentanil increases the iron content of spinal dorsal horn neurons by activating DMT1 (-) IRE,which may be associated with the mechanism of remifentanil-induced postoperative hyperalgesia in rats.