Objective To investigate the relationship between single nucleotide polymorphism (SNP) of Fas ligand (FasL) and fulminant hepatitis B in Han Chinese. Methods HBV infected subjects were enrolled in this case-control study, including 233 cases of inactive HBsAg carrier, 68 patients with fulminant hepatitis B,100 cases of spontaneous hepatitis B clearance, 102 patients with hepatitis B virus (HBV) related cirrhosis and 112 patients with HBV related primary hepatocellular carcinoma. The blood samples and clinical data were collected. FasL-844T/C polymorphisms of enrolled subjects were examined by TaqMan real time fluorescent genotyping polymerase chain reaction (RT-PCR). A adjusted odds ratios (OR)and 95% confidence intervals (CI)were calculated using the Logistic regression model. Results After adjusting the factors of gender and age, binary Logistic regression analyses indicated that the genotype frequencies of FasL-844 CC,CT,TT in inactive HBsAg carriers were 50. 64% ,39. 91% and 9. 44% respectively, and those in cases of fulminant hepatitis B were 79. 41%, 17. 65% and 2. 94%, respectively. The analysis also revealed that FasL-844CC genotype in inactive HBsAg carriers was high risk factor of developing fulminant hepatitis B (OR =4. 729,95%CI:0. 510 - 21. 282,P = 0. 043), while there were no statistic significances in other cases (P>0. 05). Conclusion The inactive HBsAg carriers harboring FasL-844CC may have greater susceptibility to fulminant hepatitis B, which need arouse high attention.

Objective To explore the value of retrievable inferior vena cava (IVC) filter placement for prevention of perioperative pulmonary embolism (PE) in patients with lower extremity/pelvic fracture with deep vein thrombosis (DVT).Methods Clinical data of 1 891 lower extremity/pelvic fracture patients combined with DVT were retrospectively analyzed.Totally 411 patients with permanent filters were excluded,and the other patients were divided into filter group (n=843) and control group (n=637) according to whether receiving retrievable IVC filter placement or not.The incidence of perioperative symptomatic PE and mortality were compared between the two groups.Results In filter group,Optease nonpermanent filters were inserted in 218 patients,and the mean indwelling time was (14.3±3.6) days.Celcet filters were inserted in 625 patients,and the filters were successfully removed in 566 out of 578 patients who underwent filter removal surgery (97.92％,566/578),and the mean indwelling time was (15.8±4.1) days.The incidence of PE in filter group (0.12％[1/843]) was significantly lower than that in control group (1.57％ [10/637],P＜0.05).Among the patients who received chemical anticoagulant therapy,the incidence of PE in filter group and control group was 0.14 ％ (1/700) and 1.47％(9/612),respectively (P＜0.05).Conclusion Retrievable IVC filter placement is a safe and effective method for preventing perioperative symptomatic and fatal PE in lower extremity/pelvic fracture patients with DVT.

Objective: To investigate the relationship between SUVmax on preoperative 68Ga-PSMA PET-CT and the clinicopathological characteristics of patients treated with radical prostatectomy. Methods: The clinicopahtological data of patients evaluated with ⁶⁸Ga-PSMA PET-CT preoperatively and treated with radical prostatectomy between May 2016 and August 2019 were retrospectively reviewed. 31 patients with a mean age (63.1±4.9) and baseline PSA (72.71±173.15)ng/ml were enrolled. Their BMI mean (24.6±3.0)kg/m². Baseline testosterone of 14 patients was (4.72±1.64)ng/ml.Based on the Gleason scores related ISUP classification, all patients were classified into grade one in 5 cases, grade 2in 7 cases, grade 3 in 4 cases, grade 4 in 10 cases and grade 5 in 5 cases. The clinical classification included 6 cases in T_2a stage, 2 cases in T_2b stage, 17 cases in T_2c stage, 1 case in T_3a stage, 4 cases in T_3b stage and 1 case in T₄ stage. SUVmax was accessed by two independent professional nuclear medicine physicians. SUVmax was 12.49±9.38. SPSS 16.0 software was used to do statistic analysis. Results: The post-operative pathological results showed the surgical margin positive in 19 cases, negative in 12 cases, vascular positive in 5 cases, negative in 20 case, positive nerve invasion in 20 cases and negative in 11 cases. 2 patients were low risk, 7 patients were medium risk and 22 patients were high risk according to D′Amico classification. Based on the basis of PSA(≤10 or>10) and Gleason score(≤6 or>6), 6 patients were in group with low PSA and low Gleason score, 5 patients were low PSA and high Gleason score, 9 patients were high PSA and low Gleason score, 11 patients were high PSA and high Gleason score. SUVmax had a significant positive relationship with pathological ISUP(r=0.434, P=0.015) and SUVmax in patients with positive intravascular tumor emboli was significantly higher than those with negative intravascular tumor emboli(14.78±10.68 vs. 8.17±2.81, P=0.005). No significant correlation was found between SUVmax and baseline PSA, testosterone, pathologic T stage, surgical margin, nerve invasion, pelvic lymph node status as well as risk stratification. SUVmax could distinguish pathologic ISUP grade 5 with a maximum AUC 0.747 (P=0.033) and the sensitivity was 88.9%. The specificity was 77.3% when SUVmax≥11.34. SUVmax in patients with upgrading ISUP was significantly higher than that in patients with downgrading ISUP (16.01±5.40 vs. 4.98±2.11, P=0.007). Conclusions SUVmax measured on preoperative ⁶⁸Ga-PSMA PET-CT may have a clinical significance in predicting unfavorable pathological factors for patients treated with radical prostatectomy.