Aim To investigate the inhibitory effect of salidroside on tumor growth in tumor-bearing mice and explore its possible mechanisms of anti-tumor action in vivo. Methods The tumor-bearing mice model was established, and the mice were randomly divided into five experimantal groups, including the salidroside low, medium and high doses groups, NS group and positive control matrine group. After continuous injec-tion of drug for eight days, the tumor growth and sur-vival time were measured, tumor growth inhibition rate and life extension rate, spleen index,the content of se-rum IL-2 and IL-12 were calculated. Results The general situation of the salidroside mice was better than the NS group and the positive control matrine group. Compared with NS group, the salidroside low,medium and high doses groups showed inhibitory effects on H22 solid tumor ( P<0. 01 ) with inhibition ratio 28. 9 %, 43. 3 % and 53. 5 %,and lengthened the survival time of mice ( P<0. 01 ) with the life extension rate 37. 54%,48. 96 % and 52. 85 % respectively. The spleen index and the content of serum IL-2 and IL-12 of the salidroside mice were significantly higher than NS group and matrine group. Conclusion Salidroside has marked inhibitory effects on tumor growth in vivo, its mechanism is probably related to improving the anti-tumor immune function.

0 05). However, the gray of G cells were significantly enhanced( ?

Objective To explore the puerperal mode of muliparas re-pregnancy, accumulate the clinical experience. Methods 490 multiparas' puerperal mode were analyzed as study group,and compared with 1600 prima-ry pregnancy at the same stage; compared the puerperal mode, the cesarean section rate and the rate of maerosoma. Results Re-pregnancy mtthiparas' vaginal delivery 385 examples, CS 105 examples,CS rate 21.4%, meanwhile the primary pregnancy's vaginal delivery 1200 examples,CS 400 examples,CS rate 25% ,no statistical difference(P>0.05). CS rate was directly proportional to the away time from last delivery. Conclusion CS rate had no remarkable difference between multiparas and primary pregnancy. Mainly CS indication is fetal distress, CS rate directly response to the time interval to last delivery. Macrosoma rate is high in muhiparas by well-fed. Multiparas had low CS rate with macrosoma.

Abstract Ten compounds were isolated from the stems of Viburnum plicatum Thunb.vat.tomentosum Miq.and were identified as 3,4,5-trimethoxyphenyl-l-O-β-D-glucopyranoside (1),isotachioside (2),tachioside (3),koaburaside (4),glucosyringic acid (5),lupeol (6),ursolic acid (7),chlorogenic acid (8),5-O-caffeoyl quinic acid butyl ester (9),and tricin-7-O-β-D-glucoside (10),respectively.Compounds 1-10 were isolated from this plant for the first time.

This study aimed to identify Inulae Herba, Inulae Flos and their closely related species using the ITS2 bar-code, and secure the quality and clinical curative effect of these medicinal materials. DNA was extracted from Inula linariifolia, I. japonica, I. britanica, which are the original species of Inulae Herba and Inulae Flos, together with their closely related species. The ITS2 sequence was amplified by PCR and sequenced bidirectionally. Sequence assembly and generation of consensus sequence were conducted by the CodonCode Aligner. The genetic distances were comput-ed using MEGA 5.0 in accordance with the Kimura-2-parameter (K2P) model, and the phylogenetic tree constructed by the neighbor-joining (NJ) method. The results showed that the ITS2 sequences of the various species have stable variable sites. The intraspecific genetic distances among Inulae Herba and Inulae Flos were obviously lower than the interspecific genetic distance among the above two medicinal materials and its adulterants. The NJ tree based on ITS2 sequences can clearly differ from Inulae Herba, Inulae Flos and their closely related species. It is concluded that ITS2 sequence can be used as DNA barcode to identify Inulae Herba, Inulae Flos and their closely related species.

[Objective]To summarize and analyze the research progress of flavonoids in the prevention and treatment of diabetes mellitus and its complications.[Methods]The role of flavonoids in diabetes mellitus and diabetic complications was summarized by searching the databases of Web of Science,PubMed,China National Knowledge Infrastructure,VIP,Wanfang and others for the reports of flavonoids and diabetes mellitus and diabetic complications from January 2013 to December 2022,and the role of flavonoids in diabetes mellitus and diabetic complications was summarized.[Results]Studies have confirmed that flavonoids(herbal flavonoid extracts,naringenin,galangal,kaempferol,etc.)are effective in preventing and treating diabetes and diabetes-induced retinopathy,nephropathy,cardiomyopathy,osteoporosis and diabetic foot.Overall regulation and comprehensive treatment are the characteristics of flavonoid components,which can inhibit inflammation,reduce oxidative stress,repair mitochondrial function,lower blood glucose,relieve insulin resistance and are able to influence the expression of related factors from multiple signaling pathways,thus treating diabetes and its complications.[Conclusion]The elaboration of the pharmacodynamic material basis,mechanism of action and constitutive relationship of Chinese medicine flavonoids against diabetes mellitus and its complications in multiple ways and at multiple levels are key issues to be solved in the development of flavonoids and an important direction for future research.

Expanded polytetrafluoroethylene (ePTFE) polymers do not support endothelialization because of nonconductive characteristics towards cellular attachment. Inner surface modification of the grafts can improve endothelialization and increase the long-term patency rate of the ePTFE vascular grafts. Here we reported a method of inner-surface modification of ePTFE vascular graft with extracellular matrix (ECM) and CD34 monoclonal antibodies (CD34 mAb) to stimulate the adhesion and proliferation of circulating endothelial progenitor cells on ePTFE graft to enhance graft endothelialization. The inner surface of ECM-coated ePTFE grafts were linked with CD34 mAb in the presence of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide/N-hydroxysuccinimide (EDC/NHS) solution and the physicochemical properties, surface morphology, biocompatibility, and hemocompatibility of the grafts were studied. The hydrophilicity of CD34 mAb-coated graft inner surface was significantly improved. Fourier transform infrared spectroscopy analysis confirmed ECM and CD34 mAb cross-linking in the ePTFE vascular grafts with our method. Scanning electron microscopy analysis showed protein layer covering uniformly on the inner surface of the modified grafts. The cell-counting kit-8 (CCK-8) assay confirmed that the modified graft has no obvious cytotoxicity. The modified graft showed a low hemolytic rate (0.9%) in the direct contact hemolysis test, suggesting the modification improved hemocompatibility of biopolymers. The modification also decreased adhesion of platelets, while significantly increased the adhesion of endothelial cells on the grafts. We conclude that our method enables ePTFE polymers modification with ECM and CD34 mAb, facilitates endothelialization, and inhibits platelet adhesion on the grafts, thus may increase the long-term patency rate of the prosthetic bypass grafts.
Antibodies* ; Antibodies, Monoclonal ; Biopolymers ; Blood Platelets* ; Endothelial Cells ; Endothelial Progenitor Cells ; Extracellular Matrix* ; Hemolysis ; Hydrophobic and Hydrophilic Interactions ; Methods ; Microscopy, Electron, Scanning ; Polymers ; Polytetrafluoroethylene* ; Spectroscopy, Fourier Transform Infrared ; Surface Properties ; Transplants

Estrogen Receptor (ERalpha) is a member of superfamily of ligand-activated transcription factors which play critical roles in many biological processes. To screen novel modulators of ERalpha for drug development and biological function research, we developed a mammalian one-hybrid-based high-throughput screening model for ERalpha modulator. We cloned the ERalpha LBD gene from the total mRNA of fat tissue by RT-PCR and fused it with the GAL4 DNA binding domain of pBIND-GAL4 plasmid to construct a chimara expression plasmid pBIND-GAL4-Eralpha(LBD). The L02 cells was cotransfected with pBIND-GAL4-ERalpha(LBD) and a GAL4-responsive luciferase reporter plasmid pGL3-GAL4, and following treatment with test compounds for 24 h, the activities of luciferase were detected to evaluate the transactivities of ERalpha modulators. After manner optimizations of transfection conditions, Estradiol, an agonist control, induced the expression of luciferase in a dose-dependent with EC50 of 0.17 micromol/L, the maximum folds of induction was about 28.1. Tamoxifen, an antagonist control, efficiently suppressed the estradiol-mediated luciferase induction with EC50 of 0.10 micromol/L. Using this screening model, we discovered four ERalpha agonists from 2000 natural and synthetic compounds.
3T3-L1 Cells ; Animals ; Chimera ; metabolism ; DNA-Binding Proteins ; biosynthesis ; genetics ; Estrogen Receptor Modulators ; chemistry ; isolation & purification ; Estrogen Receptor alpha ; agonists ; Genes, Reporter ; genetics ; Genistein ; chemistry ; isolation & purification ; HeLa Cells ; Humans ; Luciferases ; genetics ; metabolism ; Mice ; Models, Chemical ; Saccharomyces cerevisiae Proteins ; biosynthesis ; genetics ; Transcription Factors ; biosynthesis ; genetics ; Transfection

Objective To study the impact of earthquake disasters on the mental health of military medical personnel during emergency rescue. Methods Three hundred military medical personnel who participated in the emergency rescue of earthquake disasters in five military hospitals in Shaanxi Province were selected as the study subjects, and their mental health levels were analyzed using the Mental Symptom Checklist 90 (SCL-90). Results In this survey, a total of 300 SCL-90 questionnaires were issued, 300 were recovered, and the effective recovery rate was 100%. Only 30.67%(92/300) of people participated in emergency disaster rescue during investigation, 31.33% (94/300) had psychological problemsafter arriving in the earthquake-stricken area after one week, such as somatization, obsessive-compulsive disorder, anxiety, and horror. SCL-90 scores were 0.45±0.03, 1.13±0.13, 0.79 ±0.08, 1.07±0.09, 1.01±0.14. The psychological stress response rates of the emergency response of military medical staff of different characteristics were different. Among them, the stress response rates of military personnel with different degrees (specialty, bachelor or above) and whether they have participated in rescue work were 74.07% (40/54), 21.95% (54/246), 15.22% (14/92), 38.46% (80/208).The difference was statistically significant (χ2=55.913,16.018, P<0.01). Conclusions The medical staff of the army participating in the earthquake disaster rescue has psychological pressure due to many injuries, environmental risks, lack of supplies, etc. The medical unit should provide adequate training in theory and practice to its personnel and focus on the mental health of rescue workers, give timely psychological counseling to ensure the successful completion of the rescue.