1.Enhanced killing activity of γδT cells against SW1990 cells by dihydroartemisinin
Bo LU ; Fuxing CHEN ; Zhonghai ZHOU ; Leiqing SUN ; Sujuan FEI
Chinese Journal of Microbiology and Immunology 2013;(2):103-106
Objective To investigate the effect of DHA on proliferation and killing activity of γδT cells against SW1990 cells in vitro.Methods γδT cells were generated in vitro by stimulating peripheral blood mononuclear cells of healthy donors in RPMI 1640 completed medium containing IPP and IL-2 for 8 d,and then co-cultured with different concentrations of DHA for 48 h.Proliferation rates of γδT cells for each group were detected by MTT method.The perforin,granzyme B and CD107a expression in γδT cells were verified by flow cytometer.The cytotoxic activity of γδT cells against SW1990 cells were analyzed by CCK-8 kit.Results The purity of γδT cells in each group reached 75.46% ±5.32% after 8 d of culture.Compared with the control group,the proliferative capability of γδT cells were enhanced significantly after treated with 50-100 μmol/ml DHA for 48 h,moreover,cytotoxicity against SW1990 cells and perforin,granzyme B and CD107a expression of the γδT cells treated with DHA were higher than the control group.Conclusion DHA could enhance the antitumor activity of γδT cells,which may be associated with the upregulation of perforin and granzyme B expression in γδT cells.
2.Effect of SHEN-YI,a Chinese herbal formula on ratio of Th1/Th2 cells within immune organs of MRL/lpr lupus mice
Fei LI ; Xiangmei CHEN ; Bo FU ; Al ET
Chinese Journal of Immunology 1985;0(06):-
Objective:To define the effects of SHEN YI,a Chinese herbal formula on ratio of Th1/Th2 cells within immune organs of MRL/lpr mice Methods:MRL/lpr mice were administered daily with the Chinese herbal formula from the age of 12 weeks and both the treatment and control groups were killed at the age of 28 weeks The percentage of CD4 +CD30 -(Th1),CD4 +CD30 +(Th2)cells within thymus and spleen were determined in vitro by FACScan with or without PHA P stimulation The CD4 + T cells selected from splenocytes were stimulated with PHA P, then, RT PCR was performed to detect IL 4/IFN ? mRNA expressed by the selected cells In addition, the ratio of the two cytokines expressed by the CD4 + T cells from the control and treatment groups was calculated respectively Results:CD4 +CD30 + T cells nearly can't be detected within Thymus Without PHA P stimulation, there was no difference in percentage of CD4 +CD30 + T cells between the control and treatment groups After stimulation with PHA P, FACScan showed an increment in the percentage of CD4 +CD30 + T cells both in the control and treatment groups, however, the extent of expansion of CD4 +CD30 + T cells percentage in treatment group was lower than it in the control one RT PCR showed a reduction in the ratio of IL 4/IFN ? mRNA in the treatment group compared to it in the control one Conclusion:The Chinese herbal formula can inhibit Th cells to differentiate into Th2 cells in the spleen under the stimulation of PHA P
3.Conversion treatment with sirolimus in lung transplant recipients
Dong WEI ; Fei GAO ; Bo WU ; Min ZHOU ; Jingyu CHEN
Chinese Journal of Organ Transplantation 2015;36(8):490-494
Objective To explore the efficacy and safety of conversion from calcineurin inhibitor (CNI) to sirolimus (SRL) as major immunosuppressive therapy in lung transplant recipients.Method Retrospective analyses were conducted for the clinical data of all the patients undergoing lung transplantation in Wuxi People's Hospital between January 2011 and December 2014.Sixteen were given conversion treatment with Sirolimus in the postoperative irnmunosuppressive therapy.We analyzed the opportunity and reasons in the conversion treatment,and the safety,effectiveness and complications of the conversion treatment.Result The follow-up period was 8 to 25 months,and the median time of conversion was 6 months after operation (2-18 months).The indications of conversion concluded:malignant tumor (n =8),renal dysfunction (n =5),lymphangioleiomyomatosis (n =1) and intractable diarrhea caused by CNIs (n =2).Four cases suffered from interstitial pneumonitis associated with Sirolimus and one case suffered from spontaneous pneumothorax,and they all conversed back to CNIs.In those patients,cancer recurrence occurred in 4 cases (of them,there were 3 deaths),and 3 patients developed chronic rejection.Those recipients receiving the conversion treatment due to renal dysfunction showed recovery of renal function to some extent.Conclusion It's effective and safe to converse the immunosuppressive therapy based on Sirolimus.Sirolimus should be reduced or withdrawn when interstitial pneumonitis associated with Sirolimus occurred.
4.Multivariate analysis of elderly patients with thoracic malignancies caused by radioactive radiation pneumonitis
Jing WU ; Bo LI ; Fei CHEN ; Xiaolu REN
Journal of Chinese Physician 2016;18(6):809-812
Objective To investigate elderly patients with thoracic radiotherapy nausea result after risk factors associated with radiation pneumonitis.Methods The clinical data of a total of 440 cases of cancer patients with chest radiation therapy during January 2010-January 2014 were collected retrospectively.Of them,76 cases of radiation pneumonitis after radiotherapy were compared with other patients.The unconditional Logistic regression analysis was used to analyze the relationship of radiation pneumonitis and different factors including smoking,pulmonary dysfunction,combination with chemotherapy,radiation dose,and radiation sites.Results Elderly incidence of radiation pneumonitis was 17.27%.Multivariate Logistic regression analysis revealed the chi-square value of smoking,pulmonary dysfunction,combined with chemotherapy,radiation dose,and radiation sites was significant correlation (x2 =16.936,19.633,11.531,17.133,10.178,P <0.05),and the correlation degree was gradually decreased from pulmonary dysfunction,radiation dose,smoking,combined chemotherapy,to radiation site.Conclusions Elderly patients with thoracic malignancies after radiotherapy had more radiation pneumonitis,which was related to smoking,previous chemotherapy PO2 < 80%,combined with chemotherapy,radiation dose ≥ 55 Gy,and low-lung radiation.The correlation degree was gradually decreased from chemotherapy before PO2 < 80%,the radiation dose ≥55 Gy,smoking,combined chemotherapy,to low-lung radiation.
5.Considerations on the establishment of emergency medical rescue contingent
Xiaonan HU ; Yurong WANG ; Bo YUAN ; Fei CHEN
Journal of Medical Postgraduates 2004;0(01):-
The establishment of emergency medical rescue contingent is required by the current situation of militarized disaster rescue as well as by the extension of the army's missions and responsibilities in the new era.In view of the experience in the training for the preparation against war,the authors approached the establishment of the emergency medical rescue contingent in the hospital in the following aspects:preliminary organization,function identification,module formation,equipment provision,and special training.
6.Effect of acupuncture therapy on patients with low back pain: a Meta-analysis.
Fei-fan LIANG ; Wei-ye CHEN ; Bo CHEN ; Qin-guang XU ; Hong-sheng ZHAN
China Journal of Orthopaedics and Traumatology 2016;29(5):449-455
OBJECTIVETo systematically review the clinical efficacy of acupuncture on the patients with low back pain (LBP).
METHODSRandomized controlled trials (RCTs) about pure acupuncture therapy versus other treatments in treating LBP were electronically searched in PubMed, CBM, EMbase, The Cochrane Library, CNKI, VIP and Wanfang Data from January 2004 to May 2014. The observed index on the results were the changed scores of VAS, ODI, JOA and RMDQ. Two reviewers independently screened the literatures according to the inclusion and exclusion criteria, as well as the extracted data, and assessed the methodological quality. The results of Meta-analysis was conducted by RevMan 5.2 software.
RESULTSTen RCTs involved 751 patients were finally included. The results of Meta-analysis indicated that the role of pure acupuncture group in improving the VAS score was better than that of the control group, and the combined effect size was RR = -.32, 95% CI (-1.41, -1.22); Z=27.28, P<0.00001; the role of pure acupuncture group in improving the ODI score was better than that of the control group, and the combined effect size was RR = -5.07, 95% CI (-7.50, -2.65); Z=4.10, P<0.0001; the role of pure acupuncture group on improved JOA score was better than that of the control group and the combined effect size was RR=2.83, 95% CI (2.02, 3.63), Z=6.90, P<0.00001. The role of pure acupuncture group in improving the RMDQ score was better than that of the control group, and the combined effect size was RR = -2.80, 95% CI (-3.49, -2.11), Z=7.95, P<0.00001.
CONCLUSIONThe result of meta-analysis demonstrates that pure acupuncture may have a favorable effect on self-reported pain and functional limitations in LBP patients.
Acupuncture Therapy ; Humans ; Low Back Pain ; therapy ; Randomized Controlled Trials as Topic ; Treatment Outcome
8.SAR of benzoyl sulfathiazole derivatives as PTP1B inhibitors.
Wen-Wen YIN ; Zheng CHEN ; Yan-Bo TANG ; Fei YE ; Jin-Ying TIAN ; Zhi-Yan XIAO
Acta Pharmaceutica Sinica 2014;49(5):632-638
Protein tyrosine phosphatase (PTP) 1B is a potential target for the treatment of diabetes and obesity. We have previously identified the benzoyl sulfathiazole derivative II as a non-competitive PTP1B inhibitor with in vivo insulin sensitizing effects. Preliminary SAR study on this compound series has been carried out herein, and thirteen new compounds have been designed and synthesized. Among them, compound 10 exhibited potent inhibition against human recombinant PTP1B with the IC50 value of 3.97 micromol x L(-1), and is comparable to that of compound II.
Humans
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Protein Tyrosine Phosphatase, Non-Receptor Type 1
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antagonists & inhibitors
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Structure-Activity Relationship
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Sulfathiazoles
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chemistry
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pharmacology
9.Difference of cervical vestibular evoked myogenic potentials in different audition stage of Ménière disease.
Fei LI ; Jianhua ZHUANG ; Ying CHEN ; Bo GAO ; Huanhuan GU ; Xiaowen ZHOU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2016;30(1):9-12
OBJECTIVE:
Our goal was to find whether inreversible function damage of saccule was exist and correlated in Meniere's patients with different audition.
METHOD:
Senenty-nine patients with unilateral Meniere's disease, who visited the Dizziness Diagnosis and Treatment Centre of the Second Military Medical University from January to July in 2015 were included. They were grouped as slightly audition damage group (41 cases), mildly-severely audition damage group(38 cases). Meanwhile 20 normal controls underwent the research. The cervical vestibular evoked myogenic potentials were conducted in symptom free period.
RESULT:
There was no significant difference of the C-VEMP inducing rate between slightly audition damage group and normal control group. While a statistically difference showed between mildly-severely audition damage group and normal control group or slightly audition damage group. P1, N1 latency had no statistically difference between three groups. The P1-N1 amplitude and asymmetric ratio had no difference between slightly audition damage group and normal control group, but had a statistically difference between mildly-severely audition damage group and slightly audition damage group, normal control group.
CONCLUSION
The function of saccule in Meniere's patients decreased with the aggravation of audition damage.
Case-Control Studies
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Humans
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Meniere Disease
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diagnosis
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physiopathology
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Vestibular Evoked Myogenic Potentials
10.Research progress of the drug delivery system of antitumor platinum drugs with macrocyclic compounds.
Chuanzhu GAO ; Yan ZHANG ; Ji CHEN ; Fan FEI ; Tianshuai WANG ; Bo YANG ; Peng DONG ; Yingjie ZHANG
Acta Pharmaceutica Sinica 2015;50(6):650-7
Platinum-based anticancer drugs have been becoming one of the most effective drugs for clinical treatment of malignant tumors for its unique mechanism of action and broad range of anticancer spectrum. But, there are still several problems such as side effects, drug resistance/cross resistance and no-specific targeting, becoming obstacles to restrict its expanding of clinical application. In recent years, supramolecular chemistry drug delivery systems have been gradually concerned for their favorable safety and low toxicity. Supramolecular macrocycles-platinum complexes increased the water solubility, stability and safety of traditional platinum drugs, and have become hot focus of developing novel platinum-based anticancer drugs because of its potential targeting of tumor tissues/organs. This article concentrates in the research progress of the new drug delivery system between platinum-based anticancer drugs with three generations of macrocycles: crown ether, cyclodextrin, cucurbituril and calixarene.