1.Treatment of immune thrombocytopenic purpura with dichloromethylene diphosphonate-loaded gelatin particles
Zhonghua TAN ; Peiyong LI ; Yihua ZHU
Basic & Clinical Medicine 2006;0(03):-
Objective To explore whether Cl2MDP-loaded gelatin particles can induce the depletion of macrophage or can depress the immunity of macrophage in SD rat models of immune thrombocytopenic purpura(ITP) to treat the ITP rats.Methods SD rats were intravenously injected with 150 ?L of anti-platelet serum once per 24 hr to induce the ITP model.The platelet count was persistently less than 50?109L-1 in these models.After intravenous injection of a group dose of Cl2 MDP-gelatin particles,the platelet counts of these models were examined at the time of 4 hr,24 hr,48 hr,72 hr and 96 hr,respectively.The pathological change of macrophages in spleen was observed by electron microscopy.Results Cl2MDP-loaded gelatin particles can significantly increase the platelet counts of ITP models from less than 50?109L-1 to mean 180?109L-1 in 24 hr after injection.The pathological changes of macrophages were seen under electron microscope,such as degeneration, necrosis and so on.Furthermore,rats pre-treated with Cl2 MDP-loaded gelatin particles can evade the decrease of platelet counts when they were injected anti-platelet serum.Conclusion Cl2 MDP-loaded gelatin particles can promptly,effectively restoreplatelet counts of ITP models to physiological level with a dose dependent manner.So,the targeting therapy of drug-loaded gelatin particles offers a new approach to treat ITP.
2.Clinical and experimental research of Jingshichuan Capsule on curing cholelithiasis
Defu TAN ; Junzhi WANG ; Tao CHEN ; Chuanguo CHENG ; Zhonghua CHEN ;
Chinese Traditional Patent Medicine 1992;0(05):-
AIM: To observe the curative effect of Jingshichuan Capsule and to try to explore the therapeutic mechanism. METHODS: Medicines were taken orally. During experimental research an animal model of cholelithiasis was established through feeding guinea pig with food which placed a premium on shaping of cholith. The guinea pigs were divided into the pathologic group, the Jingshichuan group and the control group. The animal was executed after sixties days, the gallbladder was taken out by operation to inspect the shaping of cholith; the blood and the bile was collected to be measured; and parts of the tissue of liver and gallbladder were left for pathologic examination. RESULTS: The rate of clinic cure and the rate of effect of Jingshichuan group were separately 40.0% and 96.9%, which was significantly higher than the control group ( P
3.XBP-01 accelerated apoptosis induced by oxidized low density lipoprotein in vascular smooth muscle cells
Zhonghua YUAN ; Yongzong YANG ; Xiaoyi YANG ; Jianmiao TAN ; Zaiyang WAN
Chinese Journal of Pathophysiology 2000;0(10):-
AIM: Previous studies performed with XBP-01 in vitro indicated that XBP-01 could inhibit vascular smooth muscle cells from being transformed into foam cell and could eliminate the atherosclerotic plaque in C57 BL/6J mouse. This experiment is to investigate its mechanism of eliminating plaques in vitro. METHODS: The cultured porcine artery smooth muscle cells incubated with XBP-01 of 0.1 mg/L for 24 hours after preincubated with oxidized low density lipoprotein of 15 mg/L for 72 hours in vitro. The samples were analyzed by fluorescence microscope?confocal microscope system and flow cytometry. RESULTS: Apoptosis was triggered by being incubated with oxidized low density lipoprotein and this process was accelerated additionally by being incubated with XBP-01. CONCLUSION: XBP-01 can be effective in eliminating atherosclerotic plaque by accelerating the process in which oxidized low density lipoprotein induced smooth muscle cell apoptosis
4.Observations on the Efficacy of Jin’s Three-needle Acupuncture plus Intelligence Training in Treating Mental Retardation in Children
Yijia HU ; Renxiu HUANG ; Zhonghua QIN ; Lijin TAN ; Xuemei LUO ; Yiyi ZENG
Shanghai Journal of Acupuncture and Moxibustion 2015;(3):208-210
Objective To investigate the clinical efficacy of Jin’s three-needle acupuncture plus intelligence training in treating mental retardation in children under 6 years old. Methods Three hundred mental retardation patients aged 0 to 6 were randomly allocated, according to their parents’ willingness, to treatment and control groups, 150 cases each. The treatment group received Jin’s three-needle acupuncture plus intelligence training and the control group, intelligence training alone. An assessment was made using Chinese revised version of the Gesell Developmental Schedules in both groups before and after treatment.Results The total efficacy rate was 84.7% in the treatment group and 73.3% in the control group; there was a statistically significant difference between the two groups (P<0.05). The total efficacy rates in liver-kidney deficiency, heart-spleen deficiency, phlegm and blood stasis, and qi deficiency and blood stasis types were 86.8%, 86.8%, 76.5% and 75.0%, respectively, in the treatment group and 76.2%, 76.8%, 62.5% and 60.0%, respectively, in the control group. There were statistically significant differences in the total efficacy rates in different syndrome types between the two groups (P<0.05). The total efficacy rates in the patients with mild, moderate, severe and very severe diseases were 96.9%, 94.7%, 66.7% and 44.4%, respectively, in the treatment group and 90.0%, 82.5%, 47.8% and 35.3%, respectively, in the control group. There was a statistically significant difference in the total efficacy rate between the two groups of patients with moderate, severe or very severe disease (P<0.05).Conclusion Jin’s three-needle acupuncture plus intelligence training is an effective way to treat mental retardation in children.
5.Adipophilin induces expression of inflammatory factors through ERK1/2-AP-1 signaling pathway
Zhonghua YUAN ; Yanmei TAN ; Yuan TAO ; Jiangbo WANG ; Dongming GUO ; Zuo WANG ; Chaoke TANG ; Guoping TIAN
Chinese Journal of Pathophysiology 2015;(11):1998-2004
AIM:To observe the effects of adipose differentiation-related protein ( adipophilin) on the expres-sion of inflammatory factors in RAW264.7 macrophage and to clarify the related mechanism.METHODS:The cell models with high expression and low expression of adipophilin were constructed by transfecting PA317 packaging cells with stable high or low expression adipophilin retroviral vectors into the RAW264.7 cells.The concentrations of IL-6, MCP-1 and TNF-αin the cell culture medium were detected by ELISA.The protein levels of AP-1, p-AP-1, ERK1/2 and p-ERK1/2 were measured by Western blot.The protein levels of adipophilin, p-ERK1/2 and p-AP-1 and the releases of the inflamma-tory factors in the RAW264.7 cells treated with or without ERK1/2 inhibitor PD98059 or AP-1 inhibitor curcumin were de-termined.RESULTS:The RAW264.7 cells with high expression of adipophilin had higher levels of IL-6, MCP-1 and TNF-α, and higher protein levels of p-AP-1 and p-ERK1/2 than those in the cells with low expression of adipophilin. ERK1/2 inhibitor had no significant effect on the expression of adipophilin, but the protein expression of ERK1/2 and AP-1 was significantly inhibited (P<0.05).The administration of AP-1 inhibitor curcumin had no significant effect on the protein expression of adipophilin and ERK1/2, but the protein expression of AP-1 was significantly inhibited (P<0.05). At the same time, the releases of inflammatory factors IL-6, MCP-1 and TNF-αwere significantly decreased.CONCLU-SION:Adipophilin may regulate the expression of inflammatory factors through ERK1/2-AP-1 pathway in RAW264.7 mac-rophages.
6.A study of some key techniques of digitized virtual hand
Chaotong HUANG ; Longfu CHEN ; Jingkuang LI ; Zhonghua LI ; Dongsheng CHEN ; Jianwen TAN ; Meichao ZHANG
Chinese Journal of Microsurgery 2009;32(2):127-129,illust 6
Objective To reconstruct anatomical structures and establish visible model of the hand and evaluate some key techniques of digitized virtual hand. Methods Three hands were scan and then perfused by self-curing denture acylic and cinnabar. With the datum from CT-scan of the specimen of perfused hand (cryopreserved 4-24 h), such anatomical structures as contour, bone, artery, extensor tendon, flexor tendon and nerve of hand were constructed by software of Mimics 10.01 and measured. Results The visible hand model based on anatomical structures was established and main anatomical structures were exactly showed. Each structure was displayed by the multiform solitude or combination. Vessel lumens was displayed hollow and fidelity. The hand nerve can the part demonstrate that can earnest reflect the normal human body nerve contour anatomy characteristic. Conclusion The visible hand model can provide 3D morphological data for clinical practice and research, as well as provide digitized model for virtual reality.
7.Effect of antifibrotic herb serum on rat hepatic stellate cell proliferation and collagen synthesis
Yunbiao LING ; Ruiyun XU ; Wanshou QIU ; Zhonghua CHU ; Hongzhi YANG ; Zhi TAN ; Qingji OU
Chinese Journal of Pathophysiology 2000;0(12):-
AIM: To investigate the effect of Chinese herbs, Ganxianfang(GXF), on rat hepatic stellate cells (HSC) proliferation and collagen synthesis. METHODS: Two types of herb serum, portal venous serum and circumferential venous serum, were prepared from rats infused intragastrically with 16,8,4 times adult dose of GXF decoction. HSC isolated from rat liver were processed with the above sera in vitro . Then we mensurated the radioactivity of HSC admixed with [ 3H]proline and [ 3H]thymine to judge the effect on proliferation and collagen synthesis of HSC. RESULTS: Both two types of serum collected 0 5, 1, 2 h after intragastrical infusion inhibited HSC proliferation ( P 0 05). CONCLUSION: Inhibition of HSC proliferation and decrease of collagen synthesis may contribute to the GXF antifibrotic action.
8.Variation of peripheral blood CD34 + cells during hematopoietic stem cell mobilization and its influence on collection
Yehui TAN ; Xiaoliang LIU ; Chang WANG ; Jingnan SUN ; Xiumin SHI ; Wei HAN ; Zhonghua DU ; Long SU ; Sujun GAO ; Wei LI
Chinese Journal of Organ Transplantation 2012;33(2):90-93
ObjectiveTo investigate the variation of peripheral blood CD34+ cells during the hematopoietic stem cell mobilization,and its influence on the collecting timing and results.Methods Twenty-seven cases of peripheral blood hematopoietic stem cell mobilization and collection from April 2010 to December 2011 were analyzed,including 13 autologous cases mobilized with chemotherapy combined with granulocyte colony-stimulating factor (G-CSF,10 μg· kg-1 · d-1) and 14 cases of healthy donors mobilized with only G-SCF (7.5 μg · kg- 1 · d- 1 ).The number of peripheral blood CD34+ cells was counted,and its correlation with the yield of mononuclear cells (MNCs) and CD34+cells was analyzed.ResultsMNCs (5.84 ± 1.48) × 108/kg and CD34+ cells (3.93 ± 2.16) × 106/kg were obtained in healthy donors,and (6.58 ± 3.72) × 108/kg MNCs and (3.98 ± 3.06) × 106/kg CD34+ cells were obtained in autologous cases,respectively.There was only 1 failure in autologous cases.The peak of peripheral blood CD34+ cells in autologous cases appeared at day 4 after the treatment of G-CSF,and in healthy donors the number of peripheral blood CD34+ cells at day 5 was still in ascendant phase.The CD34+ cells/kg in the collection products were positively correlated with the percentage and absolute value of peripheral blood CD34+ cells.The cases ratio of CD34+ cells≥2× 106/kg in the products of single collection was up to 76.2% (16/21) in the cases with peripheral blood CD34+ cells absolute value greater than 20/μl.ConclusionThe number of peripheral blood CD34+ cells was an important monitoring indicator in hematopoietic stem cell mobilization and collection,CD34+ cell absolute value ≥20/μl could be used as collection threshold.
9.The pulmonary arterial hypertension of patients on maintained hemodialysis is positively associated with the decreased percent of CD8 T cell in the peripheral blood independently
Rongyi CHEN ; Fangfang XIANG ; Jiachang HU ; Xuesen CAO ; Yi FANG ; Bo SHEN ; Zhonghua LIU ; Wenlyu LYU ; Xiao TAN ; Zhihui LU ; Xiaoqiang DING ; Jianzhou ZOU
Chinese Journal of Nephrology 2017;33(5):342-348
Objective To explore the risk factors of pulmonary artery hypertension (PAH) and the its relationship with T cell subsets to provide a foundation for the prevention and treatment of PAH.Methods 154 maintained hemodialysis (MHD) patients in our dialysis center were recruited according to the criterion and divided into two groups subsequently:PAH group (pulmonary artery systolic pressure,PASP > 35 mmHg) and non-PAH group (PASP≤35 mmHg).The related clinical,biochemical and ultrasonic cardiogram data were collected and peripheral blood was acquired to detect the expressions of the surface antigen CD3,CD4,CD8 and CD69 with flow cytometry.Logistic regression analysis was used to find out the relationship between PAH and T cell subsets.Results There was no significant difference between 56 cases of PAH and 98 cases of non-PAH as regards gender,age,mean systolic and diastolic pressure,dialysis durations,morbidities of hypertension and diabetes,smoking rate,and left ventricular diameter.Compared with the non-PAH group,the PAH group demonstrated a lower percent of CD8 T cells and CD8 CD69 T cells,but a much higher left atrial diameter (LAD),Interventricular septum thickness,left ventricular posterior wall thickness,and NT-proBNP.The percentage of T cells,CD4 T cells and CD4 CD69 T cells showed no difference between the two groups.Multivariate analysis confirmed that PAH was negatively independently associated with the percentage of CD8 T cells and CD8CD69 T cells.Conclusions The decreased percentage of CD8 T cells and CD8CD69 T cells in the peripheral blood is a risk factor of PAH in maintained hemodialysis patients,and CD8 T cells may play an important role in the genesis of PAH.
10. Clinical analysis of 11 patients with phytophotodermatitis caused by ingesting Chenopodium album
Nan LU ; Xiang LIU ; Lili NIU ; Xinjun SUN ; Shulan YAO ; Zhonghua TIAN ; Zhiming CHENG ; Xingyou TAN
Chinese Journal of Dermatology 2020;53(1):58-60
Objective:
To investigate clinical characteristics and treatment of phytophotodermatitis due to ingesting