1.Comparative study of EF and kidney-tonifying recipes on regulatory effect of T lymphocytes apoptosis genes in Corticosterone-treated rats
Chinese Journal of Immunology 1985;0(03):-
Objective:To compare the regulatory effect of EF and two Kidney-tonifying recipes as well as Spleen-invigorating recipe on expression of T lymphocytes apoptosis related genes in Corticosterone-treated rats.Methods:To quantify and compare the T lymphocytes apoptosis percentage and the expression the pro-apoptotic and anti-apoptotic genes related to T cell apoptosis in every experimental groups using TUNEL method and flow cytometry assay, as well as the fluorescence real time PCR technology.Results:The percentage of T cell apoptosis and the expression of apoptosis related genes were significantly regulated by EF and two Kidney-tonifying recipes, while the Spleen-invigorating recipe had no significant effect with respect to these parameters.Conclusion:EF can be used to represent the effect of Kidney-tonifying recipes in antagonizing the inhibiting effect of exo-corticosterone with respect to T lymphocytes.
2.Comparative study of kidney-tonifying recipes and spleen-invigorating recipe on regulating pattern of the expression of T lymphocyte apoptosis signaling-related genes in corticosterone-treated rats
Yu CHEN ; Ziyin SHEN ; Weihua CHEN
Journal of Integrative Medicine 2004;2(5):346-9
OBJECTIVE: To investigate the regulating pattern of kidney-tonifying recipes and spleen-invigorating recipe on the expression of T lymphocyte apoptosis signaling-related genes in corticosterone-treated rats. METHODS: We analyzed the activation-induced T lymphocyte apoptpsis rate through TUNEL-labelled flow-cytometry assay, quantified the mRNA expression level of T cell apoptosis-regulating genes by using the fluoresecence real-time PCR, analyzed the activity of caspase-8 and caspase-3 by colorimetric assay. RESULTS: (1) T lymphocyte apoptosis rate of corticosterone-treated rats was higher than that of the normal control rats; T lymphocyte apoptosis rates of Youguiyin treated rats and Bushen Yishou Capsule treated rats were lower than that of the corticosterone-treated group; T lymphocyte apoptosis rate of Sijunzi Decoction treated rats displayed no significance compared with that of the corticosterone-treated group. (2) Pro-apoptotic genes such as Fas, FasL, TNFR1, and Bax displayed increased expression level in corticosterone-treated group compared with normal control group. Two kidney-tonifying recipes down-regruated the expression level of FasL and TNFR1, at the same time, both recipes up-regulated the expression level of Bcl-2. The spleen-invigorating recipe had up-regulating effect on the expression level of Bcl-2. And all these results had statistical significance. (3) The activities of caspase-8 and caspase-3 were increased in corticosterone-treated rats compared with normal control; both kidney-tonifying recipes had significant effect on decreasing the activities of these two apoptosis executioners. CONCLUSION: The excessive apoptosis of T cell in corticosterone-treated rats could be effectively modulated with two kidney-tonifying recipes. Down-regulating the expression of FasL and TNFR1 and up-regulating the expression of Bcl-2 as well as decreasing the activities of caspase-8 and caspase-3 may be the unique regulating pattern of tonifying-kidney method with respect to T cell apoptosis related genes in corticosterone-treated rats.
3.Dosimetry advantage of stereotactic body radiation therapy of the non-coplanar technology application in the early stage of NSCLC
Ziyin CHEN ; Maosen QIAN ; Huiying PAN
Practical Oncology Journal 2017;31(2):142-146
Objective The objective of this study was to study the dosimetric characteristics and advantages of Non-coplanar IMRT techniques stereotactic body radiation therapy(SBRT)in the early stage of NSCLC.Methods Ten patients were selected with early stage of NSCLC.Treatment planning designed 9 fields coplanar IMRT and 9 fields Non-coplanar IMRT,respectively.Non-coplanar plans include five coplanar fields and four non-coplanar fields.Two group patients' plans compared V2.5,V5,V20,V25 of the whole lung,the average exposure doses of the whole lung,and the average exposure doses of the contralateral lung.The comparison of the other OARs include:spinal cord Dmax,heart Dmax,esophagus Dmax,trachea Dmax,chest wall Dmax and V30 of chest wall.At the meantime,we compared the conformal index of PTV(CI)and the homogenization index of PTV(HI).Results Non-coplanar plans reduced V20 of the whole lung(P=0.001),the average exposure dose of the contralateral lung(P=0.001),but V5 of the whole lung non-coplanar plans were increased than that in coplanar plans(P=0.002).Non-coplanar technology reduce max dose of spinal cord,esophagus,trachea,chest wall and V30 of chest wall(P=0.026,0.001,0.026,0.008,0.016).Heart Dmax of the non-coplanar plans was high in coplanar plans with no statistical significance difference(P=0.296).The conformal index of PTV of the non-coplanar plans was better(P=0.036),there was no difference in the homogenization index of PTV(P=0.254).Conclusion The stereotactic body radiation therapy of the early stage of NSCLC,the non-coplanar technology can effectively reduce exposure doses of the lung tissue and the other most OARs,also improve the conformal index of the PTV.The non-coplanar technology have possibility in reducing complications when compared with the coplanar technology and therefore has certain dosimetry advantage.
4.Regulatory study of LBP on the expression of T cells apoptosis-related genes in aged rats
Ziyin SHEN ; Weimin GUO ; Yu CHEN ;
Chinese Journal of Immunology 2000;0(09):-
Objective:To investigate the regulatory mechanism of LBP on T lymphocytes excessive apoptosis and the mRNA expression of apoptotic genes in aged rats Methods:T lymphocyte apoptosis and the expression of pre apoptotic and anti apoptotic genes (Fas, FasL, TNFR1, Bax, Bcl2 and TNFR2) from young rats and old rats treated with or without LBP were studied using flow cytometry and fluorescence real time quantitative RT PCR Results:LBP could effectively downregulate the percentage of T cell apoptosis in aged rats At the same time LBP also downregulated the transcription level of TNFR1 gene and upregulated the transcription level of Bcl 2 in T cells from old rats Conclusion:The T cell excessive apoptosis in old rats could be effectively downregulated with LBP, by the by of decreasing the expression of pro apoptotic gene and enhancing the expression of anti apoptotic gene
5.Icariin and its pharmaceutical efficacy: research progress of molecular mechanism.
Yang CHEN ; Jianhua HUANG ; You NING ; Ziyin SHEN
Journal of Integrative Medicine 2011;9(11):1179-84
Icariin is one of the key active components of Epimedium species, which is most widely applied to supplement the kidney in traditional Chinese medicine. Scientific research has found that icariin possesses extensive therapeutic effects such as protecting neurons from injury, promoting growth of neuronal synapse, improving sexual dysfunction and bone morphogenesis, as well as anti-inflammation, anti-tumor and anti-depression functions. Considering that molecular mechanism is the fundamental basis for pharmaceutical efficacy of icariin, in this article, the authors retrospectively retrieved 122 scientific papers recorded in the PubMed database with "icariin" in the title from January 1, 1995 to January 5, 2011. It was found that icariin has been closely highlighted in the intervention of p38 mitogen-activated protein kinases and phosphatidylinositol 3-kinase/Akt signal pathways, inhibition of phosphodiesterase 5, and regulation of nuclear receptors. Besides, the authors also discussed the main orientation for molecular mechanism of icariin in future research.
6.Clinical analysis of 18 primary intestinal T cell lymphoma misdiagnosed as Crohn′s disease
Baili CHEN ; Ting FENG ; Ziyin YE ; Rongping YANG ; Yao HE ; Zhirong ZENG ; Pinjin HU ; Minhu CHEN
Chinese Journal of Digestion 2015;(7):465-469
Objective To analyze clinical features and prognosis of primary intestinal T cell lymphoma (ITCL)which was misdiagnosed as Crohn′s disease (CD),and summarized the key points of differentiation between ITCL and CD.Methods From January 2003 to January 2014,clinical data of patients with ITCL once misdiagnosed as CD were retrospectively analyzed,which included demographic,clinical,pathological and prognostic data.The data of 177 patients diagnosed as CD from January 2012 to January 2014 were collected. The demographic,clinical,pathological and prognostic data of these two groups were analyzed and compared. The continuous variables were compared with t test or Mann-WhitneyU test,and the differences of classification variables between two groups were analyzed by Chi-square test or Fisher exact probability method.Results A
total of 18 patients (17 males and one female)with ITCL misdiagnosed as CD were enrolled in the study,and the median age at diagnosis was 38.5 (28.8 to 42.5)years and the median duration of diagnosis was 6.00 (3.75 to 13.25)months.The common primary symptoms were abdominal pain (12/18),diarrhea (13/18)and anemia (13/18).Intestinal perforation was primary symptom in two cases (2/18).However,B symptoms of lymphoma was observed in 16 patients,which included fever in 13 patients,weight loss in 16 patients and night sweat in one patient.One or more serious complications appeared in 12 patients,which included intestinal perforation in nine patients,severe gastrointestinal bleeding in seven patients and intestinal obstruction in two patients.In 177 patients with CD,104 patients were male (58.8%),and the median age at diagnosis was 22.0 (18.0 to 29.0) years.The primary symptoms were abdominal pain (88.7%,157/177),diarrhea (55.9%,99/177),anemia (63.8%,113/177),fever (33.3%,59/177)and weight loss (59.9%,106/177).During the disease course,30 patients (16.9%)had intestinal perforation (mainly chronic),12 patients (6.8%)had intestinal obstruction and seven patients (4.0%)had severe gastrointestinal bleeding.Compared to CD patients,male patients were more common in ITCL (χ2 =8.837,P <0.01),age at diagnosis was older (χ2 =314.5,P <0.01),the disease course was shorter (U=385.0,P <0.01),weight loss (χ2 =5.867,P <0.05)and fever (χ2 =10.609,P <0.01)were more common in clinical symptoms and intestinal perforation and severe gastrointestinal bleeding were more common in complications (χ2 =9.185,24.908,both P <0.01).The lesions of ITCL were multiple lesions, small bowel involved in eight cases,colon involved in 14 cases and one case with esophagus involved.Under endoscopy examination,most lesions appeared as ulcerations and were segmentally distributed.Compared to CD, lymphocyte proliferation was more common in the intestinal histopathological findings of ITCL (17/18 vs 19.7%(35/177);χ2 =42.844,P <0.01)and granuloma was rare (0 vs 42.8%(76/177),χ2 =12.665,P <0.01). Among 18 patients with ITCL,nine received chemotherapy and the median survival time was two months. Conclusions Primary ITCL had non-specific symptoms and was easily misdiagnosed as CD.More attention should be paid to the differential diagnosis of the two disease.
7.Immunoregulatory mechanisms of an optimal Chinese herbal monomer compound in mice with allergic rhinitis.
Jian CHENG ; Xinmin ZHANG ; Ziyin SHEN ; Weihua CHEN ; Waijiao CAI ; Jian YING ; Guorang HU ; Runhong LIU
Journal of Integrative Medicine 2011;9(12):1360-6
To study the immunoregulatory effect of an optimal Chinese herbal monomer compound, which consists of three monomers, namely, icariin, baicalin and Astragalus saponin I, in a mouse model of allergic rhinitis.
8.A retrospective study of endoscopic ultrasound-guided coil embolization combined with endoscopic cyanoacrylate injection for gastric fundal varices
Ziyin HUANG ; Jiwang CAO ; Yong XIAO ; Yang WANG ; Jun LIU ; Mingkai CHEN
Chinese Journal of Digestive Endoscopy 2022;39(5):373-378
Objective:To evaluate the efficacy and safety of endoscopic ultrasound (EUS)-guided coil embolization combined with endoscopic cyanoacrylate injection for gastric fundal varices with large spontaneous shunt.Methods:Data of 24 patients with gastric fundal varices with large spontaneous shunt (the smallest diameter was 5-15 mm) treated by EUS-guided coil embolization combined with endoscopic cyanoacrylate injection in Renmin Hospital of Wuhan University from December 2016 to December 2020 were retrospectively analyzed. The short-term efficacy (the rates of technical success, five-day rebleeding and six-week mortality) and long-term efficacy (the rates of one-year rebleeding, one-year mortality and three-year mortality) and safety (ectopic embolism) were evaluated.Results:The technical success rate was 91.7% (22/24), and the five-day rebleeding rate was 0 (0/22). Computed tomography angiography of portal vein reexamined 2 days after the treatment showed embolism of splenic vein in 1 patient (4.5%). The median follow-up time was 14.9 months (ranging 1.0-48.6 months) and 2 patients were lost during follow-up. The six-week mortality was 0 (0/20), and the one-year rebleeding rate was 35.0% (7/20). Among 12 patients who underwent endoscopy in the follow-up, 5 had aggravation of esophageal varices, and 5 had aggravation of portal hypertension gastropathy. The one-year and three-year mortalities were 5.0% (1/20) and 20.0% (4/20), respectively, neither of which was related to such events as bleeding or ectopic embolism.Conclusion:EUS-guided coil embolization combined with endoscopic cyanoacrylate injection for gastric fundal varices with large spontaneous shunt is effective and safe in short term, with a low rate of ectopic embolism. Long-term efficacy and safety need to be further confirmed.
9.Establishment of air-pouch bladder cancer model and investigation of its feasibility for evaluating the effect of intravesical therapy
Pengyu GUO ; Li PENG ; Lu WANG ; Ziyin CHEN ; Jiuwei CHEN ; Wanhai XU
Chinese Journal of Urology 2020;41(9):698-702
Objective:To establish an air-pouch bladder cancer (APBCa) model and investigate whether it could be a new animal model to evaluate the efficacy of intravesical therapy through chemotherapeutics and BCG instillation.Methods:Filtered sterile air was injected subcutaneously into the backs of BALB/c Nude mice to create a 2.5 cm×3.5 cm air pouch. After 24 hours, human bladder cancer cells EJ were seeded on the inner face of the pouch wall to establish APBCa of human cancer (H-APBCa). Gemcitabine instillation was used to investigate whether chemotherapy could inhibit tumor growth in the H-APBCa model, and Tunel staining was used to verify the apoptosis of tumor cells 20-day treatment. Filtered sterile air was injected subcutaneously into the backs of C57BL/6 mice to create a 2.5 cm×3.5 cm air pouch. After 24 hours, mice bladder cancer cells MB49 were seeded on the inner face of the pouch wall to establish APBCa with intact immunity (I-APBCa). BCG instillation was used to investigate whether BCG could inhibit tumor growth in the APBCa model. Immunofluorescence was used to verify the infiltration of immune cells after 20-day treatment.Results:H-APBCa and I-APBCa mice models could be established by immune deficiency and intact mice. At day 20, chemotherapeutic instillation therapy could inhibit tumor growth (781.02±241.02 vs. 1213.88±214.02 mm 3, P<0.05) by inducing tumor cell apoptosis with statistically significant differences (77.33±4.63 vs. 14.67±2.60, P<0.05). BCG instillation was able to inhibit tumor growth (645.02±156.63 vs. 948.84±221.76, P<0.05) by increasing CD80 + macrophage (49.67±7.57 vs. 16.33±5.69, P<0.05) and T cells in the tumor with statistically significant differences (18.00±3.46 vs. 4.67±1.45, P<0.05). Conclusions:APBCa model could evaluate the efficacy of drug instillation and was expected to be a new animal model for studying drug for intravesical therapy.
10.Study on the Mechanism of Artemisia capillaries Based on Systems Pharmacology
Guoming CHEN ; Shunli TANG ; Zijun KUANG ; Yan HUANG ; Jinlong ZHAO ; Jingwen YU ; Ziyin CHEN ; Hongrong LIN ; Chuyao HUANG ; Hua XU
China Pharmacy 2018;29(10):1312-1319
OBJECTIVE:To investigate the possible mechanism of Artemisia capillaries,and to provide reference for further development and utilization of it. METHODS:The effective components and related target protein of A. capillaries were screened by Traditional Chinese Medicine Systems Pharmacology (TCMSP) analysis platform database. The effective compound-target protein visual network of A. capillaries was established by using Cytoscape 3.5.1 software,topology analysis was also performed. The protein-protein interaction (PPI) network was constructed and analyzed by STRING database. KEGG pathway enrichment of target protein coding gene was analyzed by DAVID bioinformatics resource database. RESULTS:A total of 13 kinds of effective compounds,189 target proteins and 34 enrichment pathways were selected. Quercetin,β-glutamol,isorhamnetin and artepillin C were main effective compounds. Prostaglandin G/H sythase 2(PTGS 2),heat shock protein 90(HSP 90),dipeptidyl peptidase Ⅳ, protein kinase A catalytic subunit Cα were main target proteins. Transcription factor AP-1 and cell tumor antigen p53 played a key role in PPI network. The target protein coding gene was rich in TNF-α signaling pathway,HIF-1 signaling pathway,Toll-like receptor signaling pathway,PI3K/Akt signaling pathway,T cell receptor signaling pathway,thyroid hormone signaling pathway, apoptotic signaling pathway,etc. CONCLUSIONS:Quercetin,β-glutamol and isorhamnetin of A. capillaries play an effect on PTGS2,HSP90,transcription factor AP-1 and other target proteins through TNF-α signaling pathway,HIF-1 signaling pathway and PI3K/Akt signaling pathway,so as to play anti-inflammatory and antitumor effect.