Objective To investigate the regulatory effect of Jianpi Huayu Prescription(Ginseng Radix et Rhizoma,Poria,Atractylodis Macrocephalae Rhizoma,Salviae Miltiorrhizae Radix et Rhizoma,etc.)on epithelial-mesenchymal transition(EMT)and angiogenesis of hepatocellular carcinoma through TGF-β1/Smad7 pathway.Methods(1)Hep3B tumor-bearing mouse model was established by BALB/C-nu nude mice.The mice were randomly divided into control group and Jianpi Huayu Prescription low-,medium-and high-dose groups(3.844,7.689,15.378 g·kg-1·d-1),with five mice in each group.Intragastric administration was performed once a day for 21 days.(2)Hep3B cells were divided into blank group,model group(10 ng·mL-1 TGF-β1),low-concentration group(10 ng·mL-1 TGF-β1+4 mg·mL-1 Jianpi Huayu Prescription),and high-concentration group(10 ng·mL-1 TGF-β1+6 mg·mL-1 Jianpi Huayu Prescription).After 48 hours of TGF-β1 induction,the cells were replaced with the corresponding concentration of Jianpi Huayu Prescription complete culture medium(0,4,6 mg·mL-1)and cultured for 24 hours.(3)HUVEC cells were divided into normal group,model group,Chinese medicine group,model plus Chinese medicine group.The cells in the normal group were cultured with conditioned medium without TGF-β1;the cells in the model group were cultured with conditioned medium containing TGF-β1.The cells in the Chinese medicine group were cultured in conditioned medium containing 4 mg·mL-1 Jianpi Huayu Prescription without TGF-β 1.The cells in the model plus Chinese medicine group were cultured with conditioned medium containing 4 mg·mL-1 Jianpi Huayu Prescription and TGF-β1.After 24 hours of continuous culture,the cells were collected for subsequent experiments.(4)The tumor mass index and tumor inhibition rate of subcutaneous transplantation tumor of Hep3B tumor-bearing nude mice were calculated.The expression of CD31 in subcutaneous xenografts of tumor-bearing nude mice was detected by immunofluorescence.The microvessel density of subcutaneous transplanted tumor in nude mice was detected by immunohistochemistry.The migration ability of Hep3B cells was detected by cell scratch test.Transwell assay was used to detect the invasion ability of Hep3B/HUVEC cells.The tube formation ability of HUVEC cells was detected.The expression levels of related proteins in subcutaneous transplanted tumors,Hep3B and HUVEC cells of tumor-bearing nude mice were detected by Western Blot.Results(1)Compared with the control group,the weight and tumor mass index of subcutaneous transplanted tumor in nude mice in the medium-and high-dose groups of Jianpi Huayu Prescription were significantly decreased(P＜0.01).The expression of CD31 and microvessel density in subcutaneous transplanted tumors of nude mice in low-,medium-and high-dose groups were significantly decreased(P＜0.05,P＜0.01),the protein expressions of VE-cadherin,EphA2 and N-cadherin were significantly down-regulated(P＜0.05,P＜0.01),and the protein expressions of E-cadherin and Smad7 was significantly up-regulated(P＜0.01).(2)Compared with the blank group,the relative migration rate of Hep3B cells in the model group was significantly increased(P＜0.05),and the number of invasive cells was significantly increased(P＜0.01).The protein expressions of Vimentin and N-cadherin were significantly up-regulated(P＜0.01),and the protein expressions of E-cadherin and Smad7 was significantly down-regulated(P＜0.01).Compared with the model group,the relative migration rate of Hep3B cells in the low-and high-concentration groups of Jianpi Huayu Prescription was significantly decreased(P＜0.01),and the number of invasive cells was significantly decreased(P＜0.01).The protein expressions of Vimentin and N-cadherin was significantly down-regulated(P＜0.01),and the protein expressions of E-cadherin and Smad7 were significantly up-regulated(P＜0.01).(3)Compared with the normal group,the number of tubular branching points formed by HUVEC cells in the model group was significantly increased(P＜0.01),the length of tubular branching was significantly increased(P＜0.01),and the number of invasive cells was significantly increased(P＜0.01).The protein expressions of VE-cadherin and EphA2 were significantly up-regulated(P＜0.01),and the protein expression of Smad7 was significantly down-regulated(P＜0.01).Compared with the model group,the number of tubular branching points formed by HUVEC cells in the model plus Chinese medicine group was significantly reduced(P＜0.01),the length of tubular branching was significantly shortened(P＜0.01),and the number of invasive cells was significantly reduced(P＜0.01).The protein expressions of VE-cadherin and EphA2 were significantly down-regulated(P＜0.01),and the protein expression of Smad7 was significantly up-regulated(P＜0.01).Conclusion Jianpi Huayu Prescription can significantly inhibit the growth,invasion and migration of hepatocellular carcinoma,which may be related to the regulation of EMT and angiogenesis mediated by TGF-β1/Smad7 pathway.

AIM: To investigate the pharmacokinetic properties of the main active components of Dalitong extract in SD rats after oral administration using UPLC-MS / MS. METHODS: An UPLC-MS / MS method was established to simultaneously detect tetrahydropalmatine, nobiletin and costunolide in the plasma and tissues of SD rats. The method was applied to investigate the pharmacokinetic characteristics and tissue distribution. RESULTS: After a single oral administration, the three active components were rapidly absorbed into the body, with a peak concentration (Cmax) of (13.73 ± 7.50), (27.01 ± 17.69) and (6.73 ± 29.94) ng / mL for tetrahydropalmatine, nobiletin, and costunolide, respectively. The time to reach the peak concentration (Tmax) was (1.40 ± 0.93), (0.63 ± 0.28) and (2.38 ± 8.81) h, respectively. The area under the curve (AUC) was (80.43±40.03), (41.30±28.69) and (303.90 ± 136.69) ng · h · mL

Objective To analyze the correlation of interferon-induced protein with tetratricopeptide repeats 1(IFIT1)with immune infiltration and prognosis of ovarian cancer(OC).Methods GEO database was employed to select the tumor immune related genes,and Kaplan-Meier and Prognoscan databases were used to identify the genes significantly associated with OC prognosis.The differential expression of IFIT1 between OC tissue and normal tissue were confirmed with GEPIA,Human Protein Atlas,and Timer databases.The expression level of IFIT1 in OC tissues with different grades and stages were analyzed in the UALCAN database.In addition,based on David database,GO enrichment analysis was used to analyze the interacting genes and proteins of IFIT1 in the String and Genemania databases.Timer and Tisidb databases verified the correlation between IFIT1 and immune cells mutually.Finally,after IFIT1 knockdown xenograft model was constructed based on lentiviral vector of IFIT1 shRNA,the tumor growth was observed in the transplanted nude mice,and infiltration of neutrophils was observed with immunohistochemical assay.Results FIT1,a tumor immune gene,selected from the GEO database,Kaplan-Meier and Prognoscan databases,was negatively correlated with the OC prognosis.GEPIA,Human Protein Atlas,Timer database,and UALCAN database indicated that the expression level of IFIT1 was significantly higher in the OC tissues than the normal ovarian tissues,and had no obvious correlation with tumor stage and grade.Analysis in String,Genemania,and David database found the interaction genes and proteins of IFIT1 were enriched in activation of 2'-5'oligonucleotide synthase,virus defense,and innate immunity,and other processes.The Timer database presented that IFIT1 was positively correlated with the infiltration of CD8+T cells,B cells,dendritic cells,neutrophils,and macrophage in OC,with neutrophils having the most significant correlation.Tisidb and GSCA also confirmed the positive correlation between IFIT1 and neutrophil infiltration in OC(P＜0.05).RT-qPCR and Western blotting confirmed that IFIT1 knockdown resulted in suppressed tumor growth in OC cells xenograft nude mice(P＜0.05)and reduced neutrophil infiltration in the xenograft tissues.Conclusion IFIT1 may influence the malignant progression of OC by promoting neutrophil infiltration.

Objective:To investigate the factors affecting the prognosis of stage Ⅰa2-Ⅱa2 cervical cancer after laparoscopic radical hysterectomy (LRH), and to compare the prognosis and recurrence sites of patients with different colpotomy paths.Methods:The clinical data of 965 patients with stage Ⅰa2-Ⅱa2 cervical cancer who underwent LRH in the First Affiliated Hospital of Army Medical University from January 2015 to December 2018 were collected. The median age was 47.0 years of all patients with a median follow-up of 62 months (48-74 months). Cox regression was used to perform the univariate and multivariate analysis of the clinicopathological factors associated with the prognosis that included disease-free survival (DFS) and overall survival (OS). Patients were categorized into LRH through vaginal colpotomy (VC group, n=475) and LRH through intracorporeal colpotomy (IC group, n=490) according to the colpotomic approaches. The prognosis and recurrence sites of patients in each group were compared. Results:(1) During the follow-up period, 137 cases recurred (14.2%, 137/965) and 98 cases died (10.2%, 98/965). The 5-year DFS and OS were 85.8% and 89.9%, respectively. In univariate analysis, positive vaginal margin (PVM) was significantly affected the 5-year OS of patients with cervical cancer ( P=0.023), while clinical stage, maximum diameter of tumor, degree of pathological differentiation, lymph node metastasis (LNM), depth of cervical stromal invasion, parametrium involvement, and uterine corpus invasion (UCI) were significantly associated with 5-year DFS and OS in patients with cervical cancer (all P<0.05). In multivariate analysis, clinical stage ( HR=1.882, 95% CI: 1.305-2.716), LNM ( HR=2.178, 95% CI: 1.483-3.200) and UCI ( HR=3.650, 95% CI: 1.906-6.988) were independent risk factors of 5-year DFS (all P<0.001). Clinical stage ( HR=2.500, 95% CI: 1.580-3.956), LNM ( HR=2.053, 95% CI: 1.309-3.218), UCI ( HR=3.984, 95%C I: 1.917-8.280), PVM ( HR=3.235, 95% CI: 1.021-10.244) were independent risk factors of 5-year OS (all P<0.05). (2) Different colpotomy paths did not significantly affect the 5-year DFS and OS of patients with stage Ⅰa2-Ⅱa2 cervical cancer. The 5-year DFS in VC group and IC group were 85.9% and 85.6% ( P=0.794), and the 5-year OS were 90.8% and 89.3% ( P=0.966), respectively. Recurrence patterns consisted of intraperitoneal recurrence, pelvic recurrence, vaginal stump recurrence, and lymph node and distant metastasis. The intraperitoneal recurrence rate of VC group was significantly lower than that of IC group [0.6%(3/468) vs 2.3% (11/485), P=0.037], while the rates of pelvic recurrence, vaginal stump recurrence, lymph node and distant metastasis and overall recurrence were not significantly different between two groups (all P>0.05). Subgroup analysis of patients with different clinical stages, LNM and UCI showed that statistical differences of the intraperitoneal recurrence rates between two groups were only in patients without LNM (0.5% vs 2.3%, P=0.030) or without UCI (0.7% vs 2.3%, P=0.037). Conclusions:Clinical stage, LNM, PVM and UCI are independent risk factors for the prognosis of patients with stage Ⅰa2-Ⅱa2 cervical cancer. For patients without LNM or UCI, LRH through VC could reduce the intraperitoneal recurrence rate, while it is not enough to improve 5-year DFS and OS of patients. Low proportion of intraperitoneal recurrence, intra-operative tumor cells spillage to vagina stump and pelvic cavity might be the explanation.

This article summarizes and analyzes the reported synthetic routes of brivudine in patent and literature.2′-Deoxyuridine was employed as starting material, affording brivudine through iodization, heck coupling, hydrolysis, decarboxylation, bromination and recrystallization.After optimization of reaction conditions of each step, a synthetic route suitable for industrial production was achieved with simple synthetic process, high yield and excellent purity.

Sexual orientation is influenced by both environmental factors and biological factors. Family and twin studies have shown that genetic factors play an important role in the formation of male homosexuality. Genome-wide scan also revealed candidate chromosomal regions which may be associated with male homosexuality, but so far no clearly related genes have been found. This article reviews the progress of relevant studies and candidate genes which are related to male homosexuality.
Animals ; Aromatase ; genetics ; Catechol O-Methyltransferase ; genetics ; Homosexuality, Male ; genetics ; Humans ; LIM-Homeodomain Proteins ; genetics ; Male ; Receptors, Dopamine D1 ; genetics ; Transcription Factors ; genetics

Objective To study and design a fluid resuscitation control system which is suitable for the treatment of hemorrhagic shock in the battlefield and prehospital settings. Methods The physiological parameters of the wounded were set as the system input and fuzzy control technology was used to identify the hemorrhagic shock (HS) severity and made a decision. At last, fluid resuscitation was finished with the use of the efficient blood transfusion and infusion pump. Results High-speed resuscitation could be carried out when the wounded was in severe condition, while low-speed resuscitation could be conducted when the wound was in mild condition. Conclusions Compared with the traditional resuscitation method, the designed fluid resuscitation control system can improve the efficiency of fluid resuscitation and the treatment success rate.

Objective To study the effects of the Notch ligands Dlk1 and recombinant human nucleu factorκB (Jagged1) on the proliferation and transdifferentiation of the type Ⅱ alveolar epithelial cells when the Notch signaling pathway activated.Methods The primary type Ⅱ alveolar epithelial cells (AEC Ⅱ) cultured with recombinant protein Dlk1 and recombinant human nucleu factor-κB (rhNF-κB) (activator of Jagged1),respectively,and then cultured with DMEM (containing 120 mL/L FBS) as controls.Proliferation and differentiation conditions of the AEC Ⅱ were observed at 48 h,72 h,96 h time point by the light microscope and electron microscopes separately.Cell number was counted with hemacytometer; the proliferation rate was measured by methyl thiazolyl tetrazolium (MTT) ; Immunofluorescence double standard method was used to detect the AEC Ⅱ specific surfactant protein C (SP-C) and AEC Ⅰ specific protein aquaporin5 (AQPS) ;the expression of SP-C,AQPS,Dlk1,Jagged1,Notch1 and Hes1 mRNA were detected by real time-PCR.Results The cell population and proliferation:compared with control group,AEC Ⅱ proliferation was promoted in the Dlk1 group [cell numbers (× 109/L) 9.05 ± 0.45 vs 7.95 ± 0.65,11.68 ± 0.43 vs 8.68 ± 0.52,11.55 ± 0.17 vs 8.73 ± 0.48,all P ＜ 0.05 ; MTT results (value A) 0.699 ± 0.050 vs 0.462 ± 0.080,0.912 ± 0.080 vs 0.535 ±0.040,0.726 ±0.050 vs 0.540 ±0.020,all P ＜0.05] and decelerated AEC Ⅱ transdifferentiation into AEC Ⅰ ; while AEC Ⅱ proliferation was inhibited in rhNF-κB group [cell numbers (× 109/L) 4.95 ± 0.33 vs 7.95 ± 0.65,4.73 ±0.71 vs 8.68 ± 0.52,4.04 ± 0.11 vs 8.73 ± 0.48,all P ＜ 0.05; MTT results (value A) 0.398 ± 0.030 vs 0.462 ± 0.080,0.402 ± 0.070 vs 0.535 ± 0.040,0.380 ± 0.110 vs 0.540 ± 0.020,all P ＜ 0.05] and accelerated AEC Ⅱ transdifferentiation into AEC Ⅰ.One-Way ANOVA showed that the difference among the 3 groups had statistical significance (cell numbers:F =486.73,P =0.02; cell proliferation:F =37.16,P =0.02).The mRNA expression:compared with control group,the expression of SP-C mRNA of Dlk1 group was significantly higher (P ＜ 0.05) while the expression of AQP5 mRNA was remarkably lower and delayed (P ＜ 0.05),the expression of Jagged1 mRNA was weak or little,Dlk1 and Notch1 mRNA were up-regulated (P ＜ 0.05),and the Hes1 mRNA was reduced (P ＜ 0.05) ; the expression of SP-C mRNA of rhNF-κB group was significantly reduced (P ＜ 0.05),while the AQP5 mRNA expressed ahead of time and increased (P ＜ 0.05),Jagged1,Hes1 and Notch1 mRNA were higher (P ＜ 0.05),and the Dlk1 mRNA was weak.One-Way ANOVA showed that the difference in the expressions of SP-C,AQP5,D1k1,Jagged1,Hes1 and Notch1 mRNA among the 3 groups had staistical significance (F =96.80,P =0.01 ; F =82.55,P =0.01 ; F =269.80,P=0.00;F =312.34,P =0.00;F =169.17,P =0.01;F =19.85,P =0.02).Conclusions There are varied effects on proliferation and differentiation of the AEC Ⅱ when the Notch signaling is activated by different ligands:Dlk1 promoted proliferation and inhibited differentiation,while Jagged1 inhibited proliferation and promoted transdifferentiation.

In this paper,the educational mode of master of public health (MPH) in America and China were reviewed through literatures searching and internet searching and the difference between America and China were compared from the sources of students,students' characters,educational objective,specialties and curricula,methods of teaching and management.There is still a certain gap in education of MPH in China.The educational mode needs optimizing with changing enrollment methods,definitude training objectives,perfect curriculum setting,increased opportunities for practice and strict quality control,so that the educational mode of MPH will be perfected in China.

Objective To explore the therapeutic efficacy and operation experience of Prolene Hernia System (PHS) in the tension-free repair operation of inguinal saddle hernia. Methods All 41 cases using PHS were selected as the subjects of this study and the results were analyzed. Results All patients were performed operation under the local anesthesia, and lasted from 25 min to 60 min. They had been keeping in ward for observation from 24 h to 72 h. No serotal swelling, hematoma, and incisional wound infection hap-pened after the operation. The follow-up time had been lasting from 6 months to 42 months, and none of pa-tients catehed a relapse or had the sensation of the foreign bodies. Conclusions Using PHS is safe and ef-fective in the tension-free repair operation, and it is more suited to inguinal saddle hernia. The key of opera-tion success is attaching importance to operation skills.