1.Effect of Chuanxiongqin injection combined with nimodipine on primary open angle glaucoma
Yan SHI ; Pengyao LIN ; Siming CHEN ; Chengfei LIN
Chinese Journal of Biochemical Pharmaceutics 2017;37(7):334-336
Objective To observe the effect of Chuanxiongqin injection combined with nimodipine on primary open angle glaucoma.Methods 112 patients with primary open angle glaucoma in ophthalmology department were grouped two groups,each with 56 cases.Two groups were treated with nimodipine and observation group was treated another with Chuanxiongqin injection to observe effect.Results After treatment,retinal light sensitivity,visual field defect,blood flow,blood flow velocity,erythrocyte migration rate,PSV,EDV and RI in central retinal artery of observation group were better than control group(P<0.05).There was no significant difference in adverse reactions between groups.Conclusion Chuanxiongqin injection can improve blood flow status of central retinal artery and optic papillary laminar, retinal light sensitivity and visual field defect for patients with primary open angle glaucoma.
2.Preparation of artificial biological ligament and its detection in vitro
Kun WANG ; Lei ZHU ; Chun ZENG ; Wentao JIN ; Daozhang CAI ; Huading LU ; Guofeng XU ; Xiaoming GUO ; Huiyan HUANG ; Siming LIN
Chinese Journal of Tissue Engineering Research 2008;12(6):1170-1174
BACKGROUND: Currently, the materials used in clinical practice to repair cruciate ligament of knee joint contain auto-graft bone- mid 1/3 patella tendon-bone (B-T-B), auto-semitendinous muscle, gracilis muscle and allogenic tissue graft. All of them are limited to a certain degree in clinical application. Therefore, people hope to consistently develop artificial ligaments to take the place of auto- and allografts. OBJECTIVE: To investigate the feasibility to construct artificial biological ligament (ABL) by applying a novel biochemical technique using porcine tendon as the raw material. DESIGN: Research of new biological material. SETTING: Department of Orthopedics, Third Affiliated Hospital of Sun Yat-sen University. MATERIALS: Adult pigs of either gender were provided by the Animal Center of Sun Yat-sen University. Scanning electron microscope (SEM, S-520) was provided by Hitachi, Japan, and micro-controlled electron tension-testing device (Model LWK-10B) by Guangzhou Experimental Devices Factory. METHODS: The experiment was performed at the Animal Center of Sun Yat-sen University from January 2004 to June 2005. ABL was established by means of treating porcine tendon with epoxy cross-linking fixation, diversified antigen minimization process, mechanic enhancement modification and surface activating process. Under aseptic condition, a 6-month-old goat's bone marrow was abstracted, and then the bone marrow matrix stem cells were cultured in ABL stent for 3 weeks. Scanning electron microscope was used to observe structure and compatibility of artificial ligament, and mechanics test was used to analyze biomechanics characteristics of ABL. MAIN OUTCOME MEASURES: Structural features, cell compatibility and biomechanics characteristics of ABL.RESULTS: ① Structural features of ABL: The appearance of ABL was similar to that of the normal human ligament. Histological examination showed that the ABL was collagen fibers with no cells. Electron microscope examination revealed that the ABL was composed of hair-looking and fiber-like objects running uniformly in a certain direction and closely parallel-arranged. ② Cell compatibility: Three weeks after xenogenic marrow matrix cells were cultured on the surface of the ABL, it was noted that cells adhered and the matrix secreted by the cells precipitated around the cells. There were no cells found inside the ABL. ③ Mechanical strength of the ligament: The average diameter of ABL was 5 mm and the mechanical test at a speed of 100 mm/min showed that its averaged tensile limit was 927.19 N and the tension-resistant strength was 47.22 N/mm those were close to the corresponding parameters of the normal goat's ACL. The normal goat's ACL was 5 mm. The greatest tensile load was 807.50 N and the tension-resistant strength was 41.13 N/mm.CONCLUSION:As we used the unique biochemical technique and minimized the xenogenic protein immunogenicity of the porcine tendon, ABL has acceptable biomechanical properties and superior biocompatibility. As a substitute of the ligament in the reconstruction of the ACL, ABL has a promising prospect in clinical applications.
3.The roles of TANK-binding kinase-1 in chronic hepatitis B virus infection induced interferon antiviral immunity
Baoyan AN ; Qing XIE ; Hui WANG ; Siming GUO ; Nina JIA ; Huaicheng SHEN ; Lanyi LIN ; Wei CAI ; Hong YU ; Qing GUO
Chinese Journal of Infectious Diseases 2008;26(5):282-286
Objective To elucidate the roles of TANK-binding kinase-1(TBKl)in hepatitis B virus (HBV)infection induced interferon antiviral immunity.Methods Peripheral blood monocytes were separated by CD14 magnetic microbeads from healthy volunteers(HV)and chronic hepatitis B(CHB)patients.Purified mDCs were induced and proliferated in the culture medium with human granulocyte-macrophage concentration of 25 mg/L were stimulated.The mRNA expressions of TBK1,interferon regulatory factor (IRF)3 and interferon(IFN)-βwere quantified by real time polymerase chain reaction(PCR).The levels of IFN-β in supernatants were determined by enzyme-linked immunosorbent assay(ELISA).Reslllts The mRNA levels of TBK1,IRF3 and IFN-β did not change significantly at 0,12,24 and 48 h after the significantly at 0, 12, 24 and 48 h in CHB group, whereas, it was significantly up-regulated at 12 h in HV group. Conclusions Our results suggest that there may be some disorders in host antiviral signal transduction pathways downstream the binding between ligands and receptors on mDC surface. The insufficient IFN-β expression after HBV infection may result in persistent chronic infection.
4.Relationship between plasma neurodegenerative protein level and non-motor symptoms in PD patients
Jian DING ; Jiejin ZHANG ; Junyi LI ; Li ZHANG ; Siming JIANG ; Yongsheng YUAN ; Xixi WANG ; Lin ZHU ; Kezhong ZHANG
Chinese Journal of Geriatric Heart Brain and Vessel Diseases 2019;21(5):506-510
Objective To study the relationship between plasma neurodegenerative protein level and non-motor symptoms(NMS)in PD patients.Methods Eighty-four PD patients served as a PD group and 54age-matched persons undergoing physical examination served as a control group. The NMS of PD patients were assessed according to the HAMD scale.The plasma levels of tau,p-tau181,Aβ-42andα-syn were measured by ELISA and analyzed by Spearman correlation analysis and binary logistic regression analysis respectively.Results The FSS score and plasmaα-syn level were significantly higher while the plasma Aβ-42level was significantly lower in PD group than in control group(3.22±1.68 vs 1.89±1.16,P=0.000;320.00±64.91ng/L vs 277.78±52.75ng/L,P=0.000;267.61±77.75ng/L vs 321.80±49.41ng/L,P=0.001).No significant difference was detected in plasma tau and p-tau181levels between the two groups(P>0.05).The plasmaα-syn level was positively related with the FSS score(r=0.237,P=0.030)and was an influencing factor of FSS(OR=1.019,95%CI:1.006-1.032,P=0.004).Conclusion Plasma neurodegenerative protein level is related with NMS and plasmaα-syn level is a peripheral biomarker for fatigue in PD patients.
5.The effect of heme oxygenase-1 on liver sinusoidal endothelial cells proliferation and pro-regeneration
Bo YUAN ; Tingfeng MING ; Siming QU ; Hanfei HUANG ; Zhong ZENG ; Jie LIN
Chinese Journal of Hepatobiliary Surgery 2022;28(7):536-541
Objective:To investigate the effects of heme oxygenase-1 (HO-1) on hepatic sinusoidal endothelial cells (LSECs) proliferation, migration, and hepatocyte proliferation.Methods:Eighteen male C57BL/6 mouse aged 6-8 weeks old were underwent partial hepatectomy. Cell proliferation and HO-1 expression in residual liver tissue were detected by immunofluorescence histochemistry at 0 d, 2 d and 4 d after operation. In vitro, LSECs were transfected with adenovirus carrying HO-1 gene (HO-1 group), and the cells were transfected with empty vector adenovirus and the non-transfected cells were used as control. In addition, LSECs from different transfection groups were co-cultured with hepatocyte without contact to evaluate the effect of HO-1 expression on promoting hepatocyte proliferation. Western Blotting and RT-PCR were used to detect the protein and mRNA expression of HO-1, inhibitor of DNA binding and or differentiation (Id1), hepatocyte growth factor (HGF) and Wnt2. Cell proliferation was detected by EdU. The ability of cell migration was detected by Transwell migration assay.Results:Compared with 0 d after hepatectomy, LSECs proliferation and HO-1 expression within LSECs were increased significantly at 4 d after surgery. EdU positive rate of LSECs in HO-1 group (27.20±4.80)% was higher than that in empty vector group (12.47±3.30)% and non-transfected group (15.97±2.50)%. The number of LSECs migration in HO-1 group (258.70±36.56) was higher than that in empty vector group (122.00±38.16) and non-transfected group (107.70±30.01). The protein and mRNA expression level of HO-1, Id1, HGF and Wnt2 in HO-1 group were higher than that in empty vector group and non-transfected group. EdU positive rate of hepatocytes that co-cultured with LSECs in HO-1 group (18.33±2.52) % was higher than that in empty vector group (11.33±1.53)% and non-transfected group (11.7±2.08)%. The differences were statistically significant (all P<0.05). Conclusion:Up-regulation of HO-1 promoted LSECs proliferation and migration of, as well as up-regulation of HO-1 in LSECs enhanced the capacity of LSECs to promote hepatocyte proliferation.
6.Procedure and teaching verses of supraclavicular subclavian catheterization
Pingqing GUO ; Yilong WU ; Siming LIN ; Lei CHEN ; Congjuan LIN ; Xide CHEN ; Jianqing ZHENG ; Guangwei ZHENG ; Shaodan FENG ; Zhenlyu LIN ; Zhihong LIN
Chinese Critical Care Medicine 2021;33(6):755-756
In order to improve the success rate of supraclavicular deep venous catheterization and reduce mechanical complications, we present an auxillary maneuver in regard to supraclavicular subclavian catheterization basing on the relatively fixed anatomy of subclavian vein and its adjacent surroundings, furthermore, we revised the standardized procedure of supraclavicular subclavian catheterization. The maneuver is summarized in the shape of verses (verses: thumb navigation is well designed according to anatomy. Needle penetrated into vein should be parallel to coronal plane. Fine needle in position should be immobilized. Is it difficult for parallel puncture? Pressure determination is required when needle is in place. It is critical to distinguish which vessel has been inserted. Guidewire is advanced smoothly. Check blood return after expansion of skin and catheterization.). For teaching convenience, verses are considered to be more concise and memorable, as well as applicable to clinical practice, in order to provide some help for clinical teaching.
7. Therapeutic value of endoscopic ultrasonography-guided hepaticogastrostomy for high malignant biliary obstructive jaundice
Xuan ZHAO ; Sumin ZHU ; Lin MIAO ; Lihong SHI ; Xiaohong WANG ; Yanbin WANG ; Jinchen WANG ; Siming GUO
Chinese Journal of Digestive Endoscopy 2019;36(9):676-681
Objective:
To study the therapeutic value of endoscopic ultrasonography-guided hepaticogastrostomy(EUS-HG) for patients with high malignant biliary obstructive jaundice.
Methods:
A total of 56 patients with high malignant obstructive jaundice hospitalized at the Second Affiliated Hospital of Nanjing Medical University and the Second Affiliated Hospital of Xuzhou Medical University from January 2014 to December 2017 were included in the study. There were 29 males and 27 females with median age of 72 (60-82) years. Patients were randomized into two groups according to the random number table, the EUS-HG group (
8.Study on the effects of 17-hydroxy-jolkinolide B on the proliferation and apoptosis of human triple-negative breast cancer cells
Fei GONG ; Siming WU ; Lei XU ; Yanan BAO ; Yu LIN ; Siwen PAN ; Dongxing YANG ; Cuicui HAN
China Pharmacy 2023;34(12):1415-1421
OBJECTIVE To study the effects of the active component 17-hydroxy-jolkinolide B (HJB) of Euphorbia fischeriana on the proliferation and apoptosis of human triple-negative breast cancers (TNBC) MDA-MB-231 and MDA-MB-468 cells. METHODS MTT assay was adopted to detect the inhibitory rate of MDA-MB-231 and MDA-MB-468 cells proliferation after treated with 0 (blank control),5,10,20,40,80 μmol/L HJB for 24, 48 and 72 h. Laser confocal microscope and flow cytometry were adopted to detect the apoptosis, mitochondrial membrane potential(MMP) and reactive oxygen species (ROS) of above 2 kinds of cells after treated with 0 (blank control), 10,20,40 μmol/L HJB for 24 h. Western blot assay was used to detect the expressions of B cell lymphoma-2( Bcl-2), Bcl-2-associated X protein (Bax), cytochrome-C (Cyt-C), caspase-3, cleaved caspase- 3, caspase-9 and cleaved caspase-9. RESULTS Compared with blank control group, 5,10,20,40,80 μmol/L HJB could significantly increase the inhibitory rate of MDA-MB-231 and MDA-MB-468 cells proliferation (P<0.05), in dose- and time- dependent trend. After 24 h treatment of HJB (10,20,40 μmol/L), the apoptosis of above 2 kinds of cells increased, and the total apoptotic rate increased significantly (P<0.05); the mitochondrial membrane potential decreased significantly (P<0.05); the level of ROS increased significantly (P<0.05); the protein expressions of Bcl-2, caspase-3 and caspase-9 were decreased significantly (P< 0.05), while the protein expressions of Cyt-C, Bax, cleaved caspase-3 and cleaved caspase-9 were increased significantly (P<0.05). CONCLUSIONS HJB can inhibit the proliferation of MDA-MB-231 and MDA-MB-468 cells, and induce their apoptosis.