1.Complications associated with pelvic intraarterial therapy in patients with recurrent and advanced gynecologic cancer
Chinese Journal of Radiology 2001;0(05):-
Objective To analyze the complications associated with pelvic intraarterial therapy in patients with recurrent and advanced gynecologic cancer and to discuss the causes, the prevention and management measures of the complications in details. Methods One hundred and thirty procedures of pelvic intraarterial therapy were performed in 78 patients with pathologically confirmed recurrent and advanced gynecologic cancer, with one to six procedures per case. The Seldinger technique was used in all patients. The catheter was introduced via femoral artery on one side (mostly on the right side), and the combined antineoplastic agents were infused into contralateral internal iliac artery and(or) ipsilateral branches supplying the involved area. Common iliac arteries and inferior mesenteric arteries were also used in some cases. Results Six patients (7.69%) developed severe skin and subcutaneous necrosis (erosion or ulceration) on the buttock and vulvae. Five of them recovered from the injuries after heteropathy in less than 2 months. One patient received surgical debridement 4 months after the pelvic chemotherapy, whose wound healed one month later. Conclusion The causes of the severe complications of pelvic intraarterial therapy were as follows: the infusing chemotherapeutic agent was too large in dosage and too dense in concentration; the infusing time was too short; the internal iliac artery gave off a lot of abnormal skin branches; the catheter was placed too distal in small branches; the embolic pieces was too small; and the development of collateral arteries was poor especially in pretreated patients with pelvic surgery and(or) radiotherapy, etc. Heteropathy should be given in no time when the severe complications were encountered, and surgical debridement and(or) skin grafting was a need in some cases. So the interventional performers should be familiar with pelvic arteriograms to select the proper location of catheter, administer the suitable dosage of therapeutic agents dilutedly and slowly, and use large emboli, such as larger Gelfoam particles or strips.
2.Induction of Specific CTLs and Their Tumor Suppressing Activity in BALB/c Mice by Peptide HER2/neu Immunization
Yanjun JIA ; Ning GUO ; Ning MAO
Chinese Journal of Cancer Biotherapy 2000;7(4):243-246
Objective: To study the cellular immune responses and the anti-tumor effects induced by peptides derived from onco-protein HER2/neu. Methods: Two HER2/neu peptides compatible with H-2Kd binding motif as tumor rejection antigens were synthesized. The ability of inducing peptide-specific CTLs and suppressing the tumor growth in BALB/c mice immunized by HER2/neu peptide was analyzed. Results: HER2/neu peptides could promote the proliferation of BALB/c lymphocytes both in vitro and in vivo. HER2/neu peptide-specific CTLs could be induced from peptide-immu-nized BALB/c mice, which showed specifically killing effects on HER2/neu positive SP2/OHER2 cells but not on HER2/neu negative SP2/O cells. Moreover, the growth of SP2/OHER2 tumor were significantly suppressed in BALB/c mice immunized with HER2/neu peptides. Conclusion: These results suggested that it was feasible to use MHC-I epitopes derived from tumor-specific antigens as vaccines for cancer immunotherapy.
3.Studies on the Constituents of Viscum ovalifolium DC
Yanjun YANG ; Jiehong LIN ; Kejin GUO ;
Journal of Guangzhou University of Traditional Chinese Medicine 1999;0(02):-
[Objective] To analyse the constituents of Viscum ovalifolium DC. [Methods] The chemical constituents of Viscum ovalifolium DC were isolated by silica gel column chromatography, purified by crystallization and identified by spectroscopy method. [Results] Lupeol acetate, ?-amyrin and oleanolic acid were isolated and identified. [Conclusion] Lupeol acetate, ?-amyrin and oleanolic acid are isolated from Viscum ovalifolium DC for the first time.
4.Research progress in targeted therapy of non small cell lung cancer
Yanjun QIU ; Dingliang LV ; Quanmin GUO
Chinese Journal of Biochemical Pharmaceutics 2017;37(6):441-442,448
Objective To investigate the clinical effect of targeted drug therapy for non-small cell lung cancer.MethodsThe study group received gefitinib targeted drug therapy, the control group was given erlotinib treatment, recording two groups of patients with non-small cell lung cancer, survival time, follow-up treatment costs and adverse reaction incidence (drug).ResultsThe total efficiency of treatment (37.50%) and the control group (the total efficiency of treatment 35.42%) no obvious difference;no significant difference between the survival time of patients in group two non-small cell lung cancer, but the study group treatment costs significantly less than the control group (P<0.05);two groups of patients with non-small cell lung cancer were treated with erlotinib and gefitinib poisoning reaction contrast did not significant difference.ConclusionGefinitib targeted therapy of non-small cell lung cancer can be based on protecting the clinical curative effect and prognosis of the patients, reduce the economic pressure, more conducive to the positive reception and treatment.
5.Changes of Serum Endotoximia and Interleukin-6 Levels Before and After Treatment at Intestine Depollution and Adjustment Intestine Microenvironment in Patients With Liver Cirrhosis
Yanjun CHU ; Yanru LU ; Changqing GUO
Journal of Chinese Physician 2001;0(03):-
Objective To observe the changes of serum endotoxin and interleukin-6 level before and after treatment at intestine get rid of filth and adjustment intestine microenviroment in patients with advanced stage liver cirrhosis and to oberserve the incidence of spontaneous bacterial peritonitis(SBP) and to research a method that can more efficient reduce the incidence of SBP.Methods Group A was given conventional treatment such as protection liver,supplement human albumin and uragogue;goup B was given FPA 0 2g tid po,continuous three days on the basis of two weeks conventional treatment,group C was given Tab comfort get 0 5g tid po,Changtai orally taken liquid,10ml tid po,lactulose 10ml tid po, for all 8 weeks,on the basis of group B treatment after pausing use FPA.Results Serum endotoxin and interleukin-6 levels in group A was not significantly changes after treatment,,SBP incidence was higher than both group B and group C;at group B,serum endotoxin and interleukin-6 levels decline,SBP incidence significantly drop afer treatment,at group C,serum endotoxin,interleukin-6 level and SBP incidence significantly drop,the difference was significant at statistics as compared with group A and B.Conclusions The treatment at intestine get rid of filth and adjustment intestine microenviroment can effectively reduce serum endotoxin and interleukin-6 levels and can significantly reduce the incidence of SBP.
6.Study of human cytomegalovirus infections and hepatic impairment in chronic hepatitis C patients
Yanjun CHANG ; Wenjie GUO ; Huifang XUE ; Weiping FAN
Chinese Journal of Postgraduates of Medicine 2012;(33):21-23
Objective To explore the infections of human cytomegalovirus (HCMV) in chronic hepatitis C patients and the hepatic impairment in chronic hepatitis C patients co-infected with HCMV.Methods HCMV-DNA was determined by fluorescence quantitative-PCR (FQ-PCR) in 95 patients with chronic hepatitis C (observation group) and 95 healthy controls(control group) and HCMV active infections were analyzed.HCV-RNA was determined by FQ-PCR in observation group,and the difference of HCMV-DNA positive rate between high HCV-RNA(> 104 copies/ml) and low HCV-RNA(≤ 104 copies/ml) was analyzed.Alanine aminotransferase (ALT),aspartate aminotransferase (AST) were determined by rate method in two groups and the hepatic impairment was analyzed.Results Twenty-five cases with positive HCMV-DNA in observation group,the positive rate was 26.3%(25/95).Five cases with positive HCMV-DNA in control group,the positive rate was 5.3%(5/95).There was significant difference between two groups for HCMV-DNA (x2 =14.29,P <0.01).Twenty-one cases with positive HCMV-DNA in 43 cases of high HCV-RNA patients,the positive rate was 48.8%(21/43).Four cases with positive HCMV-DNA in 52 cases of low HCV-RNA patients,the positive rate was 7.7%(4/52).There was significant difference between the two (x2 =19.90,P < 0.01).ALT,AST in observation group was higher than that in control group (P < 0.01).ALT,AST in chronic hepatitis C patients positive for HCMV-DNA was higher than that in chronic hepatitis C patients negative for HCMV-DNA significantly (P < 0.01).Conclusions HCMV in chronic hepatitis C patients becomes active again and co-infects easily.When chronic hepatitis C patients co-infect HCMV actively,hepatic is further injured.
7.Efficacy and safety of tolterodine on late-onset overactive bladder symptoms after prostate brachytherapy
Yanjun ZHU ; Zhibing XU ; Guomin WANG ; Yeqing XU ; Jianming GUO
Chinese Journal of Urology 2012;33(9):660-663
Objective To assess the efficacy and safety of tolterodine on late-onset overactive bladder symptoms after prostate brachytherapy due to prostate carcinoma.Methods Twenty-six prostate cancer patients diagnosed by biopsy,who underwent prostate brachytherapy using iodine-125,were recrui(t)ed in this trial.All cascs complained of overactive bladder symptoms 6 months postoperatively.The 26 patients were divided into 2 groups:14 men in tolterodine group (TR group) who were given tolterodine 2 mg twice a day; 12 men in tamsulosin group (TS group) who were given tamsulosin 0.2 mg once a day.Efficacy was assessed by changes in IPSS,OABSS and nighttime voiding at 2 weeks and 4 weeks after medical treatment respectively.Safety was assessed by postvoid residual (PVR) and acute urinary retention (AUR),dry mouth,constipation and tachycardia at the fourth week after medical treatment.Results The age,tumor staging,GS,PSA,initial prostate volume,IPSS,OABSS,nighttime voiding,iodine-125 seeds implanted and needles punctured of both groups were comparable.IPSS,OABSS and nighttime voiding were significantly improved in TR group after 2 weeks of medical treatment and the above parameters were significantly improved than TS group (14.4 vs 18.3,5.9 vs8.4,1.4 vs2.5).OAB symptoms of TR group were also significantly improved than TS group after 4 weeks of therapy.There were no significant differences of PVR and AUR,dry mouth,constipation and tachycardia between both groups.Conclusions Tolterodine is effective and safe in treating late-onset OAB symptoms after prostate brachytherapy,although the occurence of dry mouth and tachycardia might be increased.
8.Changes of circulating Tfr and Tfh cells in children with myasthenia gravis
Yajie CUI ; Fang CHEN ; Yanjun GUO ; Chunlan SONG
Chinese Journal of Microbiology and Immunology 2016;36(10):746-752
Objective To investigate the changes of follicular regulatory T cells ( Tfr cells) and follicular T helper cells ( Tfh cells) in peripheral blood of children with myasthenia gravis ( MG) . Methods We recruited 28 MG patients and 20 healthy subjects in this study. The percentages of Tfh and Tfr cells in peripheral blood samples were measured by flow cytometry. Real-time PCR was performed to detect the ex-pression of transcription factors and regulatory factors of Bcl-6, c-MAF, Blimp-1 and PD-1 at mRNA level. ELISA was used to detect the levels of IL-2, IL-6, IL-10 and IL-21 in plasma samples and the titers of Ach-Rab and PsMab. Results Compared with the healthy subjects, the MG patients showed higher percentages of Tfh cells and lower percentages of Tfr cells before receiving treatment. The expression of Bcl-6 and c-MAF on CD4+T lymphocytes cells at transcriptional level were significantly enhanced, while the expression of Blimp-1 on CD4+T cells and the expression of PD-1 on Treg cells at transcriptional level were inhibited in the MG patients in comparison with those in healthy subjects. Moreover, decreased levels of IL-2 and increased levels of IL-21 were found in plasma samples collected from the MG patients. Conclusion The decreased percentages of Tfr cells and increased percentages of Tfh cells in patients with MG resulted in abnormal ratios of Tfr/Tfh cells, which might be involved in the immunological pathogenesis of MG. Several changes in the patients with MG might be responsible for the imbalanced ratio of Tfr/Tfh cells, which included changes of IL-2 and IL-21 in microenvironment, enhanced expression of Bcl-6 and c-MAF at mRNA level and inhibited expression of Blimp-1 at mRNA level on CD4+T cells as well as over-expression of PD-1 at mRNA level on Treg cells.
9.Study of the reference intervals for thyroid-hormones in each trimester of normal pregnancy
Yanjun YUAN ; Qiuyan GUO ; Bingrui LI ; Bingshan LV ;
International Journal of Laboratory Medicine 2015;(16):2394-2395
Objective To survey the thyroid-hormone changes in gravidas,and to establish the reference intervals for thyroid-hormones in each trimester of normal pregnancy in Pingdingshan.Methods 2 645 gravidas who established documents in our hospi-tal were enrolled,The gravidas were divided to different groups by age (≤30 and >30 years old)and 425 cases of early pregnancy women,1 657 cases of middle pregnancy women and 563 cases of late pregnancy women were collected as research group.4 kinds of thyroid functions in the six groups were detected by electrochemical luminescence.Results FT3 and FT4 gradually reduced as the growth of the pregnancy period,but TSH and TPOAb increased.There is statistical difference in all thyroid-hormones between all trimesters of pregnancy and different age groups.Conclusion There is significant difference in thyroid-hormones for different sta-ges of pregnancy and different age groups.Therefore,establishing reference intervals of thyroid-hormones during different stages of pregnancy may be important for clinical practice.
10.Applicability of small molecule biomarkers of nephrotoxicity in evaluating toxicity of traditional Chinese medicines
Xuejun GUO ; Caiyun GU ; Yanyan XU ; Yubo LI ; Yanjun ZHANG
Drug Evaluation Research 2017;40(4):472-478
Objective To evaluate the applicability of small molecular markers of nephrotoxicity that in prediction of drug toxicity.Method Extracts of five kinds of traditional Chinese medicines (Tripterygium wilfordii,Strychni semen,Aristolochiafangchi,Rhei Radix et Rhizoma,and Xanthium sibiricum) that had known as nephrotoxicity were ig given to rats to establish renal injury models,and the blood samples were collected after administration for 1 and 7 d.Then blood samples were analyzed by UPLC/Q-TOF-MS for five kinds of small molecule biomarkers-thymidine,lyso-phosphatidylcholine (LPC 16:1),LPC (18:4),LPC (20:5),and LPC (22:5).The support vector machine (SVM) prediction model was established to determine the toxicity.The levels of Cr and BUN in serum were determined by automatic biochemical analyzer.The rats in each group were sacrificed after blood collection,and the kidneys were taken for HE staining.Result No toxicity was observed in the control group,and the biochemical test results showed no renal injury after mentioned five kinds Chinese herbs were given for 1 d,while SVM model of nephrotoxicity had been found abnormal.After administration for 7 d,the results of SVM model show renal toxicity,which were consistent with biochemical and pathological examination.Conclusion Metabonomics combined with the earlier established SVM model enabled prediction of drug nephrotoxicity more sensitively,quickly and \ccurately,and it is of great significance for the discovery of drug toxicity as well as the prevention and treatment of drug-induced renal injuries in clinic.