Objective To detect the expressions of intercellular adhesion molecule-1(ICAM-1)and nu-clear factor(NF)-κB in hepatic tissues of the patients with chronic hepatitis B,and to analyze their correlation with the hepatic inflammatory activity and fibrosis degree.Methods The liver biopsy specimens from 66 pa-tients with hepatitis B and 10 non-hepatopathic controls were selected,and immunohistochemistry and in situ hybridization were used to detect ICAM-1 and NF-κB expression levels in different liver tissues.Results The positive rate of ICAM-1 and NF-κB expression in liver tissues of the patients with chronic hepatitis B was higher than that in normal liver tissues,and the difference was statistically significant(P＜0.05).The expres-sion of ICAM-1 and NF-κB in the patients with hepatitis B was positively correlated with the inflammatory ac-tivity and fibrosis degree(r=0.493,0.496,P＜0.01;r=0.580,0.519,P＜0.01).Conclusion ICAM-1 and NF-κB in the patients with chronic hepatitis B are highly expressed,which is useful in judging the hepatic in-flammatory activity and fibrosis degree.

BACKGROUND:Endothelial injury is one of the causes of cardiovascular diseases.Human induced pluripotent stem cells are easy to obtain,have strong differentiation ability,and have less exclusiveness,and their endothelial differentiated cells can be used as ideal cells for cardiovascular disease research. OBJECTIVE:To investigate the effect and mechanism of calycosin on endothelial differentiation of human induced pluripotent stem cells and to provide technical support for microvascular regeneration. METHODS:Human induced pluripotent stem cells were divided into control group and calycosin group(1.25,2.5 μg/mL),and growth factors were added to induce single-layer endothelial differentiation.After the induction of differentiation for 8 days,the positive rate of endothelial cell marker CD144 was detected by flow cytometry.Fluorescent expressions of CD144 and CD31 were detected by the immunofluorescence method.Lentivirus RNAi GFP puromycin was used to silence human-induced pluripotent stem cell Piezo1 mRNA followed by endothelial directed differentiation.After 8 days of differentiation,the positive rate of CD144 in differentiated cells was detected by flow cytometry.The mRNA expression levels of CD144,Piezo1 and MEK were detected by qPCR. RESULTS AND CONCLUSION:(1)Compared with the control group,the positive rate of CD144 was significantly increased in the 1.25 and 2.5 μg/mL calycosin groups(P<0.05).The expressions of CD144,Piezo1,and MEK mRNA were increased in the 2.5 μg/mL calycosin group(P<0.05).The fluorescence expressions of CD144(P<0.01)and CD31(P<0.001)were significantly increased in the 2.5 μg/mL calycosin group.(2)Compared with the shNT group,CD144 positive rate and CD144,Piezo1,MEK mRNA expressions were significantly increased in the shNT + calycosin 1.25,2.5 μg/mL groups(P<0.05).Compared with the shPiezo1 group,the positive rate of CD144 and mRNA expressions of CD144,Piezo1 and MEK had no significant changes in the shPiezo1+calycosin 1.25,2.5 μg/mL groups(P>0.05).(3)It is concluded that 2.5 μg/mL calycosin promotes the differentiation of human-induced pluripotent stem cells into endothelial lineages.Calycosin promotes the downstream MEK expression,thereby promoting the endothelial differentiation of human induced pluripotent stem cells by targeting the expression level of Piezo1.

Objective To investigate the diagnostic value of immunophenotype in distinguishing acute promyelocytic leukemia(APL)from HLA-DR negative acute myeloid leukemia(AML)using flow cytometry.Methods A retrospective observational study was con-ducted including 42 APL patients and 28 newly diagnosed or relapsed HLA-DR negative AML patients admitted to our hospital from 2014 to 2024.Immunophenotype analysis was performed on bone marrow aspirate samples using flow cytometry.The positive expression rates of CD64,MPO,CD7,CD11c,CD9,CD123 and other antigens were compared between the two groups using the Chi-square test.The diagnostic efficiency of the CD9/123 and CD64+MPO+CD7 CD11c-models for APL was evaluated using receiver operating charac-teristic(ROC)curves.Results The HLA-DR negative AML group exhibited significantly lower positive rates of CD64,CD9 and MPO(P＜0.05),and higher positive rates of CD11c and CD7(P＜0.05)compared to APL group.The CD64+MPO+CD7-CD11c-model had an area under the curve(AUCROC)of 0.859,sensitivity of 93.8％and specificity of 75.0％for distinguishing APL.The CD9/CD123 expression pattern had AUCROC of 0.919,sensitivity of 83.3％and specificity of 84.0％for APL diagnosis.The combined CD9/123 and CD64+MPO+CD7-CD11c-model had AUCROC of 0.955,sensitivity of 83.3％and specificity of 100％.Conclusion The combined CD9/123 and CD64+MPO+CD7-CD11c-expression pattern may serve as a helpful tool for differentiating APL from HLA-DR negative AML.

Objective:To compare the short-term efficacy of drug-coated balloon and common balloon in the treatment of with below-the-ankle arteriosclerosis obliterans (ASO).Methods:The clinical and follow-up data of 115 patients (118 limbs) with lower extremity ASO of Rutherford 4-6 admitted to the Department of Peripheral Vascular Diseases, Xiyuan Hospital, China Academy of Chinese Medical Sciences from Jun 2021 to Jun 2023 were retrospectively analyzed.Results:Patients were divided into group of 52 limbs using paclitaxel-coated balloon and group of 66 limbs using common balloon. During the 6-month follow-up period, The total effective rate of wound surface was 98.1% in the drug-coated balloon group and 92.4% in the common balloon group. The difference was statistically significant ( P<0.05); the increase of ankle-brachial index (ABI) and toe-brachial index (TBI) in the drug-coated balloon group were significantly better than common balloon group, and the difference was statistically significant ( P<0.01). No major adverse events occurred in the two groups during the 6-month follow-up period. Compared with the common balloon group, the drug-coated balloon group had a higher limb salvage rate (100.0% vs. 98.5% ) and a lower target vessel reconstruction rate (7.7% vs.18.2%), though the difference was not statistically significant ( P>0.05). Conclusion:Compared with the common balloon, the drug-coated balloon is more effective in the treatment of patients with wound healing rate and vascular patency rate in Rutherford 4-6 grade below-the-ankle artery lesions.

Objective:To evaluate the efficacy and safety of rituximab(RTX) as remission-mainten-ance therapy in antineutrophil cytoplasmic antibody(ANCA) associated vasculitis(AAV).Methods:Patients with AAV, including granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA), treated with rituximab (RTX) in Peking Union Medical College Hospital during September 2005 to June 2021 were included into this study. Clinical data, relapse rate, time of first relapse and adverse events were collected and analyzed. The cumulative relapse rate was calculated by Kaplan-Meier, t test, and Man-Whithey U test and chi-square were used to compare differences between two groups. Results:① Thirty-nine AAV patients were enrolled, including 36 GPA and 3 MPA. During the 20(3, 104) months follow-up, 59.0%(23/39) patients had suffered relapses. The time for first relapse was 11(3, 42) months after remission. ② There were no difference in the relapse rate [60.0%(18/30) vs 55.6%(5/9), χ2=0.06, P=1.000), the time of first relapse [15(3, 42) vs 10(9, 30), Z=0.45, P=0.678], CD19 + B [23.5 (5, 148) cell/μl vs 3(2, 15) cell/μl, Z=0.57, P=0.605] and serum IgG [7.09(5.13, 13.90) g/L vs 9.72(5.32, 12.0) g/L, Z=0.36, P=0.770] between standard dose and low-dose groups. The rate of major relapse-free was significantly less in patients treated with standard dose than patients with reduced dose of RTX {87.1%[95% CI(73.4%, 100.8R%)] vs 64.3%[95% CI(23.1%, 105.4%)], χ2=7.59, P=0.006}. ③ There were no difference in relapse rate [50.0%(3/6) vs 60.6%(20/33), χ2=0.24, P=0.674], time of first relapse [23(6, 25) vs 11(3, 42), Z=0.05, P=0.982], CD19 + B[35(15, 50) cell/μl vs 10(0, 148) cell/μl, Z=0.95, P=0.382] and serum IgG[6.70(5.91, 7.49) g/L vs 7.69(3.78, 13.90) g/L, Z=0.48, P=0.700] between the fixed interval dosage and the on-demand dosage groups. There was no difference in the rate of major relapse-free between the two groups (100% vs 77.8%, χ2=1.79, P=0.181). ④ The incidence of infusion reaction was 5.1%(2/39) and infection was 20.5%(8/39). Serum IgG level was 4.37(3.78, 13.4) g/L at infection. There was no difference in safety between the standard and low-dose groups or between fixed interval and on-demand dosage groups ( P>0.05). Conclusion:There is no significant difference in relapse rate bet-ween the standard RTX dose and low-dose RTX induction therapy group, but the major relapse rate is sign-ificantly reduced in the standard dose RTX therapy. The relapse rate of fixed intervals dosage group is similar to that of on-demand dosage group. The safety profile of the standard dose and low-dose induction therapy groups or fixed intervals and on-demand dosage groups is similiar.

Objective:To explore the clinical features and survival of newly diagnosed follicular lymphoma (FL) patients with diffuse large B-cell lymphoma (DLBCL) component.Methods:1845 newly diagnosed FL patients aged ≥ 18 years with grades 1-3a in 11 medical centers in China from 2000 to 2020 were included, and patients with DLBCL component were screened. The clinical data and survival data of the patients were retrospectively analyzed, and the prognostic factors were screened by univariate and multivariate analysis.Results:146 patients (7.9% ) with newly diagnosed FL had DLBCL component. The median age was 56 (25-83) years, 79 males (54.1% ) . The pathology of 127 patients showed the proportion of DLBCL component. Patients were divided into two groups according to whether the proportion of DLBCL component was ≥ 50% . The study found that patients with DLBCL component ≥ 50% had higher grade 3 ratio (94.3% vs 91.9% , P=0.010) , Ki-67 index ≥ 70% ratio (58.5% vs 32.9% , P=0.013) and PET-CT SUVmax ≥ 13 ratio (72.4% vs 46.3% , P=0.030) than patients with DLBCL component<50% . All patients received CHOP or CHOP like ± rituximab chemotherapy. The overall response rate (ORR) was 88.2% , and the complete response (CR) rate was 76.4% . In the groups with different proportions of DLBCL component, there was no significant difference in the remission rate after induction treatment and the incidence of disease progression within 2 years after initiation of treatment (POD24) ( P<0.05) . The overall estimated 5-year progression free survival (PFS) rate was 58.9% , and the 5-year overall survival (OS) rate was 90.4% . The 5-year OS rate of POD24 patients was lower than that of non POD24 patients (70.3% vs 98.5% , P<0.001) . Compared with non maintenance treatment of rituximab, maintenance treatment of rituximab could not benefit the 5-year PFS rate (57.7% vs 58.8% , P=0.543) , and the 5-year OS rate had a benefit trend, but the difference was not statistically significant (100% vs 87.8% , P=0.082) . Multivariate analysis showed that failure to reach CR after induction treatment was an independent risk factor for PFS ( P=0.006) , while LDH higher than normal was an independent risk factor for OS ( P=0.031) . Conclusion:FL patients with DLBCL component ≥50% have more invasive clinical and pathological features. CHOP/CHOP like ± rituximab regimen can improve the clinical efficacy of patients. Rituximab maintenance therapy can not benefit the PFS and OS of patients. Failure to reach CR after induction therapy was the independent unfavorable factor for PFS.

Objective:To explore the expression levels of aldehyde dehydrogenase 1 (ALDH1) and ATP-binding cassette superfamily G member 2 (ABCG2) in non-small cell lung cancer (NSCLC) tissues, and to observe the correlations of their expressions with clinicopathological features and prognosis of patients.Methods:The tissue samples from 82 patients with NSCLC who underwent surgical treatment from January 2016 to November 2018 in Taishan Hospital of Shandong Province were selected. The expressions of ALDH1 and ABCG2 in fresh cancer tissues and adjacent tissues were detected by immunohistochemistry. χ 2 test was used to analyze the correlations of ALDH1 and ABCG2 expressions with clinicopathological features of patients; Pearson method was used to analyze the correlation between ALDH1 and ABCG2; Kaplan-Meier method and log-rank test was used to analyze the correlations of ALDH1 and ABCG2 expressions with the overall survival (OS) of patients; Cox proportional hazards model was used to analyze the influencing factors of OS. Results:The positive expression rates of ALDH1 and ABCG2 in NSCLC tissues were higher than those in adjacent tissues, and the differences were statistically significant [60.98% (50/82) vs. 12.19% (10/82), 51.22% (42/82) vs. 3.66% (3/82), χ 2 values were 42.051 and 46.582, both P < 0.01]. ALDH1 expression was positively correlated with ABCG2 expression in NSCLC tissues (P < 0.05). The positive expression rates of ALDH1 and ABCG2 in patients with TNM stage Ⅱ-Ⅲ were higher than those in patients with stage Ⅰ [70.00% (35/50) vs. 46.88% (15/32), 60.00% (30/50) vs. 37.50% (12/32), both P < 0.05], and the positive expression rates of ALDH1 and ABCG2 in patients with lymph node metastasis were higher than those in patients without metastasis [75.00% (27/36) vs. 50.00% (23/46), 66.67% (24/36) vs. 39.13% (18/46), both P < 0.05]. The median follow-up time was 22.5 months, a total of 2 patients were lost to follow-up, and the median OS time was 25.4 months. The OS rate of ALDH1-positive patients was lower than that of ALDH1-negative patients (χ 2 = 5.124, P = 0.031), and the OS rate of ABCG2-positive patients was lower than that of ABCG2-negative patients (χ 2 = 6.969, P = 0.008). Multivariate Cox analysis showed that age (OR = 1.241, 95% CI 1.021-2.535, P = 0.045), lymph node metastasis (OR = 1.521, 95% CI 1.102-4.281, P = 0.012), TNM stage (OR = 2.104, 95% CI 1.289-6.150, P = 0.018), ALDH1 (OR = 2.435, 95% CI 1.214-8.654, P = 0.001), and ABCG2 (OR = 1.503, 95% CI 1.148-5.696, P = 0.021) were independent influencing factors of OS for patients with NSCLC. Conclusions:The expressions of ALDH1 and ABCG2 in NSCLC tissues are increased, and they are associated with lymph node metastasis and TNM staging. The OS rate in ALDH1-positive and ABCG2-positive patients is low. ALDH1 and ABCG2 may be prognostic markers for NSCLC.

Objective:To explore the relationship between the changes of midbrain raphe nucleus echo and blood trace metals, non-motor symptoms in patients with Parkinson′s disease (PD).Methods:A total of 177 patients with PD were recruited from Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology from November 2017 to December 2019. Their non-motor symptoms were assessed by a series of PD-related scales. All subjects completed transcranial color-coded sonography, and were divided into two groups according to the continuity of raphe nucleus echo. The difference of trace metals in peripheral blood and the scores of non-motor symptoms were analyzed.Results:The serum iron level of PD patients in the continuous echo of raphe nucleus group (117 cases; 15.33 （11.30, 18.93） μmol/L) was higher than that of the discontinuous group (60 cases; 12.52 （4.15, 16.00） μmol/L, t=-2.294, P=0.022), so was the scores of Scale for outcomes in PD for Autonomic Symptoms (34.00 （28.00, 39.00） vs31.00 （26.25, 36.00）， t=-2.044, P=0.041). There was no significant difference in the level of serum copper, hemoglobin, ceruloplasmin, and the scores of Movement Disorder Society Unified Parkinson′s Disease Rating Scale, Parkinson′s Disease Sleeping Scale, 39 items Parkinson′s Disease Questionnaire, Hamilton Depression Rating Scale and Hamilton Anxiety Rating Scale between the two groups. Conclusion:There was significant difference in serum iron levels and the scores of SCOPA-AUT between the two groups, but no difference in depression, sleep, and daily living ability.

Objective To investigate the correlation of substantia nigra hyperecho with essential tremor (ET) and Parkinson disease (PD).Methods The clinical data of 158 patients with ET or PD who underwent transcranial ultrasonography in Tongji Hospital from March 2016 to March 2018 were retrospectively analyzed.There were 35 patients with ET (ET group),113 patients with PD who had no previous history of ET (PD group),and 10 PD patients with previous history of ET (ET-PD group).And 58 healthy subjects served as controls (control group).The hyperechoic area of substantia nigra in different groups was compared.Results The hyperechoic areas of the substantia nigra were [0 (0,0)]cm2 (control group),[0.27(0,0.41)]cm2 (ET group),[0.33(0.21,0.40)]cm2 (ET-PD group) and [0.35(0.29,0.45)]cm2 (PD group);the differences between control group and ET group,between the ET group and PD group were statistically significant (Z=-5.24,P=0.01;Z=-3.09,P=0.02),and there were no significant difference between the ET group and ET-PD group,between ET-PD group and PD group (Z=-0.98,P=0.32;t=-0.98,P=0.33).The ratio of substantia nigra hyperechoic positive to negative in ET-PD group was 9.00 (9/1),while that in ET group was 0.94 (17/18) (OR=9.53,95％ CI:1.09-83.43,x2=3.91,P=0.04).Conclusion Substantia nigra hyperecho is an objective imaging indicator for patients with ET and PD,and has a certain differential value for their diagnosis.

Chronic atrophic gastritis (CAG) is a common and refractory disease of the digestive system in clinic.Apoptosis is the important reason which relates CAG pathological changes.As one of the important means of clinical prevention and treatment of digestive diseases, traditional Chinese medicine (TCM) in the role and mechanism of CAG related research has become an important direction in recent years.Based on the collection of related literatures and data, the paper analyzed the possible mechanism of CAG pathogenesis grasped the key aspect of apoptosis and clarified the research status of TCM on the regulation of gastric mucosal cell apoptosis in CAG in recent years through focusing on the specific signaling pathways in mitochondrial pathway, death receptor pathway, endoplasmic reticulum pathway.Through the above analysis, the paper provided some ideas for further systematic and in-depth research and explored CAG effective TCM program.