1.Analysis of Toxoplasma gondii Specific Antigens by Two Dimensional Electrophoresis and Western Blotting
Linjie LI ; Huaien BAO ; Wei PAN
Chinese Journal of Parasitology and Parasitic Diseases 1987;0(04):-
The total protein of Toxoplasma gondii RH strain tachyzoites was separated by two-dimensional electrophoresis (2-DE), and Western blotting was performed to find out distinct antigens. 209 spots were detected through Coomassie brilliant blue-stained small gels (7?8 cm, pH 3-10). Western blotting showed 17 specific antigen spots with sera of the experimental group and two nonspecific spots with the control sera.
2.Efficacy of Total Glucosides of Paeony in the Treatment of Undifferentiated Spondyloarthropathies and Its Mechanism
Zhijun LI ; Yongjun MEI ; Linjie CHEN
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(01):-
Objective To evaluate the efficacy of total glucosides of paeony(TGP) in the treatment of undifferentiated spondyloarthropathies(uSpA) and investigate its mechanism.Methods One hundred and sixteen cases of uSpA were randomly assigned to 2 groups,one group was treated with TGP and diclofenac sodium,the other group with SASP and diclofenac sodium.The efficacy and side effects of the two groups were compared after 12 weeks treatment.The level of IL-6,IL-10 and TNF-? was determined at the same time.Result After 12 weeks treatment,the major clinical manifest and the indexes of disease activity were no difference of statistical significance in the two groups.The incidence of parenterally side effects was 8.6% in TGP group,and 25.9% in SASP group.There was difference at statistical significance between the two groups(? 2 =6.042,P=0.014).Before treatment,the level of IL-6,IL-10 and TNF-? in the serum of two groups were no statistical difference,while there was obviously difference after 12 weeks treatment(t= 2.672,2.483 and 2.088,P=0.009,0.014 and 0.039).Conclusion The efficacy of TGP and SASP has no significant difference in the treatment of uSpA.But the incidence of parenterally side effects in the TGP group was less than SASP group.The mechanism of efficacy of TGP may be related to inhibiting the production of IL-6,IL-10 and TNF-?.
3.Thirty-two cases analysis on rheumatic manifestations of malignant tumors
Linjie CHEN ; Zhijun LI ; Xiaoyun FAN
Chinese Journal of Rheumatology 2001;0(02):-
Objective To improve the understanding of osteoarticular pain presented as rheumatic syndromes of cancers and malignant skeleton metastasis associated. Methods To analyse the clinical data of 32 patients initially manifested as osteoarticular pain. Results Forteen patients of 32 cases was diagnosed as cancer associated rheumatic syndromes, characterized by gradually deteriorated chronic recurrent vague pain. The effect of non-steroid anti-inflammatory drugs (NSAIDs) and glucocorticoid was not satisfactory. Pain subsided after removal of carcinous mass. Eighteen patients had malignant skeleton metastasis, vague pain at onset, but gradually progressed to be, severe persistent pain. NSAIDs and glucocorticoid were ineffective. Narcotic analgesics could produce short time relief. The nature and distribution of tumour were comparatively extensive. The clinical misdiagnosis rate was high. Conclusion Clinical doctors often neglect the coexistence of tumor because they are not familiar with the relation between osteoarticular pain and tumor. So patients who is over sixty and is not sensitive to commonly used analgesics and glucocorticoid with osteoarticular muscular pain should be considered the possibility of malignant tumor after excluding diffuse connective tissue disease.
4.Rapid determination of monoamine neurotransmitters and their metabolites by high performance liquid chromatography
Limin LUN ; Linjie CHE ; Shiwei LI
Chinese Journal of Tissue Engineering Research 2006;10(22):180-182
BACKGROUND: The determination of monoamine neurotransmitters and their metabolites is important in the experimental.research of Parkinson disease (PD) and experimental diagnosis of phaochromocytoma.OBJECTIVE: To develop a high performance liquid chromatography (HPLC) method for simultaneous and rapid determination of monoamine neurotransmitters and their metabolites which include epinephrine(E), norepinephrine(NE), dopamine(DA), 5'-hydroxytryptamine(5'-HT), 5-hydroxy3-indoleacetic acid(5-HIAA), homovanillic acid(HVA) and 3,4-dihydroxyphenylacetic acid(DOPAC).DESIGN: Case control observation and a randomized controlled animal experiment.SETTING: Department of Clinical Laboratory, Affiliated Hospital of Medical College, Qingdao University; Haiyang Branch, Affiliated Hospital of Medical College, Qingdao University.PARTICIPANTS: This experiment was carried out at Staff Room of Physiology, edical College, Qingdao University and Department of Clinical Laboratory, Affiliated Hospital of Medical College of Qingdao University from October to December 2003. ①Two patients with phaeochromocytoma were all confirmed by CT, MRI or pathologic section as well as physical sign. Twelve health volunteers were all university students and were excluded to suffer hypertension, endocrine system diseases and other diseases. ② Total 12 healthy female Wister rats weighed between 150 g to 180 g were chosen and randomly divided into control group and PD group with 6 rats in each.METHODS: The standard chromatograms of the standard solution of mixtures of seven substances (E, NE, DA, 5'-HT, 5-HIAA, HVA and DOPAC)were prepared and the precisions and recovery rates of the same samples were determined respectively. Urine samples of 24 hours obtained from 12 healthy volunteers and 2 patients with phaeochromocytoma were analyzed respectively by HPLC. The unilateral forebrain bundles in PD group were destroyed with 6-hydroxydopamine (6-OHDA) for monitoring release characteristics of monoamine neurotransmitters and their metabolites in healthy and marred caudate putamen nucleus striatum of normal and PD rats striatum.MAIN OUTCOME MEASURES: ①Determination of the precisions and recovery rates of monoamines. ②The contents of catecholamines in 24 hours urine of 12 health volunteers and 2 patients with phaeochromocytoma .③The release characteristics of monoamines and their metabolites in rats striatum. RESULTS: The results and analysis of catecholamines substances in 24hours urine were all obtained from 12 health volunteers and 2 patients with pheochromocytoma. There were no animals died in the experinment, and all of them were involved in the result analysis. ①There was a favorable linear relationship in the range of 2-1 000 μg/L for DA, E, NE and DOPAC, 10-1 000 μg/L for 5-HIAA, HVA and 5-HT for 30-1 000 μg/L with HPLC. The minimal detection limit of DA, E, NE and DOPAC was 2 μg/L, 5-HIAA 10 μg/L, HVA and 5-HT 30 μg/L. The coefficient of variation (CV) in the same batch was 3.0%-8.6%, and the CV in the different batchs was 3.8%-9.7%. The average rates of recovery of DA, NE, E and other 4 kinds of substances were 107.3%, 89.4%, 80.1% and 89.2%-95.7%, respectively.②The contents of CA in 24 hours urine of the 2 patients with phaeochromocytomas were higher than those of the 12 healthy volunteers. One of patient samples showed that E was mainly higher than that of control group. Other samples showed that NE was mainly higher than that of control group. Otherwise , E and NE were ten times higher than that of control group. ③The contents of DA and its metabolites such as DOPAC and HVA in intact sides of hemiparkinsonian rats had no significant changes ,while the contents of DA, DOPAC and HVA in lesion sides were significantly decreased compared with the controls (P < 0.01 ).There were no significant changes in the contents of 5-HT and its metabolites 5-HIAA. ④The turnover rates of DA (DOPAC/DA and HVA/DA) in intact and lesion sides of hemiparkinsonian rats were all higher than those of the controls(P < 0.05).CONCLUSION: The method we developed is suitable for the experimental research of normal and hemiparkinsonian rat models and for the diagnostic testing of phaeochromocytoma.
5.Expression and clinical significance of PD-1 on CD4+CD25high Tr and CD4+ CD25low T cells in the peripheral blood of patients with systemic lupus erythematosus
Changhao XIE ; Yuanyuan WANG ; Zhijun LI ; Linjie CHEN ; Baiqing LI
Chinese Journal of Microbiology and Immunology 2012;32(2):119-123
Objective To detect the frequency of peripheral blood CD4+ CD25high Tr and CD4+CD25lowT cells and expression of programmed death-1 ( PD-1 ) on their surface in the patients with systemic lupus erythematosus(SLE) and their clinical signifcance is analyzed.Methods The expression of PD-1 on the CD4+ CD25highTr and CD4+CD25lowT cells was examined in patients with 33 active SLE,18 inactive SLE and 38 healthy controls(HC) by flow cytometry.Clinical manifestations and laboratory findings of SLE were collected.Patients were divided into two groups according to their disease activity.SLE disease activity index(SLEDAI) score≥10 was defined as high disease activity and <10 as inactivity.The percentage of CD4+ CD25highTr and CD4+CD25lowT cells and proportions of expression of PD-1 on their surface were compared between not only inactive or active SLE patients and healthy controls (HC),but also between patients with lupus nephritis and without lupus nephritis.Correlation with clincal manifestations and laboratory findings was analyzed.Results (1)The proportions of CD4+CD25highTr and CD4+CD25low T cells were significantly decreased in active and inactive SLE patients as compared with HC.(2)The percentage of CD4+ CD25lowPD-1 +Tr and in active and inactive SLE patients were higher than HC.The proportions of CD4+CD25lowPD-1+ T cells were significantly increased in HC and inactive SLE patients as compared with inactive SLE patients.(3) The proportions of CD4+CD25highPD-1+Tr in SLE patients with nephritis were higher than those in patients without nephritis.But the percentage of CD4+ CD25 lowPD-1 + T cells was significantly decreased in SLE patients with nephritis as compared those without nephritis.(4)A positive correlation was observed for proportions of CD4+CD25highPD-1 + T cells with SLEDAI score.Proportions of CD4+ CD25high Tr,CD4+ CD25low PD-1 + T cells was inversely correlated with SLEDAI score.Conclusion The aberrations of proportions of CD4+CD25highpD-1+,CD4+CD25lowPD-1+,CD4+CD25high and CD4+CD25low T cells were observed in patients with SLE.The abnormality of PD-1 and PD-L1 pathway may play an important role in the function and number of Tr.
6.A meta-analysis of Tanreqing injection in the preventive effect of radiation pneumonitis
Linjie HUANG ; Huimin LIU ; Cong LI ; Fuchao CHEN
International Journal of Traditional Chinese Medicine 2014;(9):789-793
Objective To evaluate the effectiveness of Tanreqing Injection for the preventive of radiation pneumonitis. Methods Retrieving literatures in CNKI, CBM,VIP and WanFang, Medline, Google Scholar database from January 2000 to July 2013.Two researchers extracted and evaluated the quality of all the data independently.RevMan 5.2 software was used for statistical analysis. Results 11 papers and 939 patients were involved in the study. Meta analysis showed statistical difference for the index of marked efficacy between Tanreqing group and radiation group with OR(95%CI)is 0.42(0.30, 0.57). Significant difference was found for the index of more than Grade 3 of radiation pneumonitis, radiation pulmonary fibrosis with OR(95% CI) 0.19(0.11, 0.35), 0.35(0.23, 0.53), respectively(P=0.65). Statistical difference was observed for the index of the dose of radiation and the average onset time of radiation pneumonitis with OR(95%CI) 7.39(4.41, 10.38) and 7.72(6.84, 8.61) respectively. Conclusion Meta analysis based on current limited clinical research results preliminary shows that. Tanreqing injection has a good clinical efficacy for the preventive effect of radiation pneumonitis. The use of Tanreqing injection could reduce the rate of more than Grade 3 of radiation pneumonitis as well as radiation pulmonary fibrosis, extend the onset time and increase the dose which leads to radiation pneumonitis.
7.Chemotherapy plus pirarubicin in treatment of malignant lymphoma in the elderly:an analysis of 50 cases
Weihong LIU ; Linjie LI ; Nengwen XU ; Zhiguo LIU
Chinese Journal of Biochemical Pharmaceutics 2014;(2):95-96
Objective To investigate the effects and toxicity of pirarubicin and chemotherapy regimen in treatment of malignant lymphoma in the elderly. Methods 50 cases(over 60 years of age) with non Hodgkin's lymphoma collected in Lishui Central Hospital of Zhejiang province from January 2011 to January 2013 were randomly divided into control group(n=25)and experimental group(n=25). Experimental group were received CTOP chemotherapy, control group were received the standard CHOP chemotherapy, vomiting, stomach, blood pressure, blood glucose control and other appropriate symptomatic treatment were adopted according to the speciifc circumstances of each patient in both two groups. Regular inspection were given to all patients, and bone marrow suppression, treatment of lymphoma, complications and other indicators were observed. Results Complete remission in experimental group after treatment was 13 cases, accounted for 52%within group, partial remission were 9 cases, accounted for 36%. The total effective number was 22, and the rate was 88%. Complete remission in control group after treatment was 8 cases, accounted for 32%within group, partial remission were 5 cases, accounted for 20%. The total effective number was 13 cases, and the rate was 52%. Bone marrow suppression in experimental group was signiifcantly less than control group (P<0.05). Conclusion Elderly patients with malignant lymphoma in chemotherapy plus pirarubicin can improve the therapeutic effect, reduce bone marrow suppression and complications.
8.Fc receptor like 3 in Han nationality of Anhui patients with rheumatoid arthritis
Daoqian SANG ; Zhijun LI ; Linjie CHEN ; Jingming DUAN
Chinese Journal of Rheumatology 2010;14(2):123-127
Objective To investigate the association between a few single nucleotide polymorphisms (SNPs)in Fc receptor like 3(FcRL3)and rheumatoid arthritis(RA)in Han nationality of Anhui patients.Methods One hundred and forty RA patients along with one hundred and eighty-seven healthy controls were included in the study.SNPs of FcRL3-1(rs0158440),FcRL3-2(rs2225828),FcRL3-3(rs7528684).FcRL34(rs11284799),FcRL3-5(rs945635),FcRL3-6(rs3761959),FcRL3-7(rs2210913),FcRL3-8(rs2282284)and FcRL3-9(rs2282283)in the FcRL3 gene were genotyped by MALDI-TOF technology.Haplotypes were estimated using PHASE v 2.1 software.Results The frequency of FcRL3-3-1 69C alleles in RA patients was significantly increased compared with healthy controls(X~2=7.348,P=0.007,OR=1.558,CI:1.130~2.150).The decreased compared with healthy controls.ConclusionFcRL3 may be associated with RA susceptibility in Anhui Han population.
9.Patient-controlled paravertebral block in optimizing cellular immune function after radical resection of pulmonary carcinoma performed via video-assisted thoracoscope
Fang FENG ; Juan LI ; Xinghui LIU ; Fang KANG ; Linjie ZHANG
Chinese Journal of Anesthesiology 2015;35(6):707-710
Objective To evaluate the patient-controlled paravertebral block (PCPB) in optimizing the cellular immune function when used after radical resection of pulmonary carcinoma performed via video-assisted thoracoscope in patients.Methods Forty-one ASA physical status Ⅰ or Ⅱ patients of both sexes,aged 50-64 yr,with body mass index of 20-25 kg/m2,of TNM staging Ⅰ or Ⅱ,undergoing radical resection of pulmonary carcinoma performed via video-assisted thoracoscope,were randomly divided into 2 groups using a random number table:PCIA group (n =21) and PCPB group (n =20).PCIA solution contained sufentanil 2 μg/kg in 100 ml of normal saline.The PCIA pump was set up to deliver a 2 ml bolus dose with a 15-min lockout interval and background infusion at 2 ml/h.In PCPB group,the patients received paravertebral injection of 0.2% ropivocaine 5 ml at T5 level on the affected side under ultrasound guidance at the end of operation,and then received PCPB.PCPB solution contained 0.75% ropivacaine 67 ml in 250 ml of normal saline,and the pump was set up to deliver a 5 ml bolus dose,with a 15-min lockout interval and background infusion at 5 ml/h.VAS score was maintained ≤ 3,and analgesia lasted until 50 h after operation.Before induction of anesthesia (baseline),at end of operation,and at 1,3 and 5 days after operation,peripheral venous blood samples were collected to determine the levels of regulatory T cells,natural killer cells and natural killer T cells (by flow cytometry) and plasma concentrations of interleukin-10 and transforming growth factor-β (by ELISA).Results Compared with group PCIA,the level of regulatory T cells was significantly decreased,the levels of natural killer cells and natural killer T cells were increased,and the plasma concentrations of interleukin-10 and transforming growth factor-β were decreased at 1 and 3 days after operation,and no significant change was found in the rate of cellular immune function decline after operation in group PCPB.Conclusion PCPB provides no significant difference clinically in optimizing the cellular immune function when used after radical resection of pulmonary carcinoma performed via video-assisted thoracoscope in the patients.
10.To strengthen the detection of biomarkers in the synchronous metastatic axillary lymph nodes of primary breast cancer
Lingquan KONG ; Linjie LU ; Hongyuan LI ; Guosheng REN ; Kainan WU
Chinese Journal of Endocrine Surgery 2016;10(2):99-103
Postoperative adjuvant therapy for primary invasive breast cancer patients with synchronous ax-illary metastases is mainly based on the characteristics of biomarker of the primary tumor. Recently, some studies have showed the discordance and clinical significance of estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2) status between primary breast cancer and synchronous axillary lymph node metastases. As local metastasis, the synchronous axillary metastases may represent the potentially metastatic breast cancer cells much better than the primary tumor. Hence, determination of biomarkers status should be performed in synchronous axillary metastasis, together with primary tumor, to guide therapy management and evaluate the prognosis of primary invasive breast cancer patients with synchronous axillary metastases.