1.Effects of 1,25-dihydroxyvitamin D3 on high glucose-induced expression of uncoupling protein 2 and oxidative stress in human renal tubular epithelial cells
Hancheng GUO ; Shan LAN ; Qiaoying WU
Chinese Journal of Endocrinology and Metabolism 2013;29(10):849-852
[Summary] The HK-2 cells with different culture media were divided into normal glucose group (NG group,5.5 mmol/L D-glucose) ; high glucose group (HG group,30 mmol/L D-glucose) ; mannitol group (MG group,5.5mmol/L D-glucose+24.5 mmol/L mannitol) ; 1,25-dihydroxyvitamin D3 [1,25-(OH)2D3] groups (V1-V3 group)which were exposed to medium containing 30 mmol/L D-glucose and different concentrations of 1,25-(OH)2D3 ;Nethyl-cysteim control group (NAC group,30 mmoL/L D-glucose + 1.0 mmol/L N-Nethyl-cysteim) ; and ethanol control group(SG group,30 mmol/L D-glucose+6.86 × 10-2 mol/L ethanol).The level of intracellular reactive oxygen species,mitochondrial membrane potential,activity of total-superoxide dismutase (T-SOD),level of malondialdehyde,expression of UCP2 mRNA and protein in HK-2 cells were detected.Compared with NG group,the mitochondrial membrane potential significantly decreased in HG group (P<0.01),and the mitochondrial membrane potential in V group was lower than that in HG group(P<0.01).The activity ofT-SOD in HG group was significantly lower than that in NG group(P<0.01),while its level of malondialdehyde was significantly higher than that in NG group(P<0.01).Compared with HG group,the activity of T-SOD in V groups was significantly increased (P<0.05)and the level of malondialdehyde in these groups significantly decreased (P<0.01).The mRNA expression of UCP2 in HG group was increased significantly in comparison with NG group (P < 0.05) and the expression in V groups was significantly decreased in comparison with HG group (P<0.01).The results suggest that 1,25-(OH)2D3 could reduce the mitochondrial membrane potential,the production of reactive oxygen species,and regulate the expression of UCP2 in order to suppress the oxidative stress induced by high glucose.
2.Pharmacodynamic Comparison between Fast-disintegrating Oral Nitroglycerin Tablets and Commercial Tablets
Lan CHEN ; Xin'An WU ; Xiaodong GUO ;
China Pharmacy 2001;0(08):-
OBJECTIVE:To evaluate clinical pharmacodynamics between fast-disintegrating oral nitroglycerin tablets and commercial tablets.METHODS:Fast-disintegrating oral nitroglycerin tablets with the same content as commercial tablets were prepared,the effects of two kinds of tablets on diastolic blood pressure,heart rate of the healthy volunteers were observed and compared.RESULTS:Fast-disintegrating oral nitroglycerin tablets showed more rapid drug absorption than the commercial tablets3minutes after administration,there was remarkable difference between them(P
3.Effects of ManLAM on the maturation of dendritic cells and downstream immunity
Jianjun WANG ; Shuliang GUO ; Lan LI ; Tingting WU
Chinese Journal of Immunology 2001;0(07):-
Objective:To observe the effects of mycobacterium tuberculosis components (mannose-capped lipoarabinomannan,ManLAM) on the maturation of dendritic cells and downstream immunity.Methods:The peripheral blood mononuclear cells were obtained from healthy individuals,and then were cultured in medium with GM-CSF and IL-4.Five days later the medium was changed and cytokine was added to.On the sixth day,the cells were divided into three groups.Meanwhile ManLAM and LPS were added to stimulate the DCs according to the experimental design.Seven days later,the cells were collected and the level of DC-SIGN,HLA-DR,CD86 and CD83 were detected by flow cytometry.The levels of IL-12 and IL-10 in the supernatant were measured by enzyme-linked immunosorbent assay (ELISA).Proliferative induction of DCs to CD4+T lymphocytes was measured by mixed lymphocyte reaction(MLR).The naive CD4+CD45RA+ T cells and allogeneic DCs were co-cultured for 48 hours.Subsequently,the supernatant IFN-? level in each group was measured by ELISA.Results:(1)The expression of CD86 and CD83 on DCs in ManLAM group was lower than those of the mature group (P
4.Effect of RNAi-mediated silencing of DC-SIGN on maturity and functions of human dentritic cells in vitro
Jianjun WANG ; Shuliang GUO ; Lan LI ; Tingting WU
Journal of Third Military Medical University 2002;0(12):-
0.05). Conclusion Lentivirus-mediated RNAi of DC-SIGN gene suppresses the gene expression on the surface of DCs effectively,but had no effect on the maturity and functions of DCs.
5.Chemical constituents from Glechoma longituba.
Jie LIU ; Guo-Qiang LI ; Xia WU ; Yao-Lan LI ; Guo-Cai WANG
China Journal of Chinese Materia Medica 2014;39(4):695-698
Fourteen compounds were obtained from Glechoma longituba by the chromatographic methods of silica gel, ODS, Sephadex LH-20 and preparative of HPLC. According to physicochemical properties and spectral data, these compounds were identified as stilbostemin B (1), trilepisiumic acid (2), 3, 4-dihydroxyphenyl ethanol ketone (3), bergeninmonohydrate (4), oresbiusin A (5), norbergenin (6), stilbostemin D (7), ehretioside B (8), ethyl ferulate (9), E-p-hydroxy-cinnamic acid (10), methyl gallate (11), protocatechuic acid (12), 4'-Hydroxyacetophenone (13), and E-3-2,4-dihydroxyphenyl-2-acrylic acid (14). Among them, compounds 1-10, 13 and 14 were isolated from this plant for the first time.
Drugs, Chinese Herbal
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chemistry
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isolation & purification
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Lamiaceae
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chemistry
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Magnetic Resonance Spectroscopy
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Molecular Structure
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Spectrometry, Mass, Electrospray Ionization
6.Haploidentical hematopoietic stem cells transplantation for the treatment of medulloblastoma One case report
Haiyan HU ; Hongbo GUO ; Bingyi WU ; Lan DENG ; Chaoyang SONG ; Kunyuan GUO
Chinese Journal of Tissue Engineering Research 2010;14(32):6073-6076
BACKGROUND: Some reports demonstrated that, autoallergic or hematopoietic stem cells transplantation combined with chemotherapy received good outcomes in treating medulloblastoma, which can prolong survival time of patients. However, whether haploidentical hematopoietic stem cells transplantation can treat medulloblastoma remains poorly understood.OBJECTIVE: To firstly report a patient receiving haploidentical hematopoietic stem cells transplantation for treating medulloblastoma.METHODS: A terminal cancer patient with bone matastases successively received six lymphocyte transfusions from an unrelated donor combined with chemotherapy and three haploidentical hematopoietic stem cell transplantations.RESULTS AND CONCLUSION: The patient presented erythra, accompanied by fever, diarrhea and yellow brown liquid stools, which was considered as graft versus host disease, and treated by urbason, gammaglobulin, CellCept, Prograf, Basiliximab (anti-CD25 antibody), Infliximab (anti-tumor necrosis factor α antibody), effective antibacterial and supportive treatments. After that, the erythra and diarrhea were remised. But the patient died from cerebral hemorrhage. Allogeneic lymphocyte transfusion can kill or damage tumor cells, improve life quality, but the outcome is restrained for patient with a high tumor burden. Immunosuppressant, such as anti-CD25 antibody and anti-tumor necrosis factor α antibody should be timely used in consideration of allogeneic hematopoietic stem cell transplantation.
7.Outcomes of docetaxel and cisplatin induction chemotherapy followed by concurrent chemoradiotherapy in locally advanced non-small cell lung cancer
Shuhong HAN ; Xiaotao ZHANG ; Xuesong WU ; Zhen ZHANG ; Chengye GUO ; Xuezhen MA ; Lan YU
Chinese Journal of Radiation Oncology 2012;21(1):16-19
Objective To investigate the efficacy and side-effect of docetaxel and cisplatin induction chemotherapy followed by concurrent chemoradiotherapy in locally advanced non-small cell lung cancer (NSCLC).MethodsEighty-six patients with histologically confirmed locally advanced NSCLC were randomized into induction chemotherapy followed by concurrent chemoradiotherapy (ICCRT)arm or concurrent chemoradiotherapy (CCRT) arm. Both arms were treated with intensity-modulated radiation therapy. Induction and concurrent chemotherapy regimen consist of docetaxel and cisplatin. Results Follow-up rate of the whole group is 100%.The response rate in the CCRT arm and ICCRT arm is 70% and 80% ( χ2 =1.26,P =0.261 ),respectively; and 1-,2-,3-year survival rate is 65% and 85%,40% and 50%,33% and 44% (χ2 =3.90,P=0.048),respectively; the median survival time and time to progression is 17.5 and 22.0 months and 14.0 and 19.0 months respectively.Major adverse effects are leukopenia (43 and 32 cases,χ2 =3.48,P =0.062),radiation esophagutis (26 and 20 cases,χ2 =0.12,P =0.730),anemia (26 and 16 cases,χ2 =2.34,P =0.126) and radiation pneumonitis (13 and 9 cases,χ2 =0.37,P =0.541 ).ConclusionsICCRT for locally advanced NSCLC can improve the overall survival rate and time to progression,induction chemotherapy did not increase side-effects.There was no difference in response rate between CCRT and ICCRT arm.
8.Serum small dense low-density lipoprotein cholesterol and performance evaluation of commercial detection kits and its relationship with the severity of coronary heart disease
Lan ZHANG ; Wenqi SHAO ; Ailun ZHANG ; Qian DAI ; Jiong WU ; Beili WANG ; Wei GUO ; Baishen PAN
Chinese Journal of Laboratory Medicine 2017;40(6):425-430
Objective To evaluate the performance of serum small dense low-density lipoprotein cholesterol(sdLDL-C)kit using enzymic method and evaluate the relationship with the severity of coronary heart disease.Methods Performance verification methodology. The analytical performance consisted of accuracy, precision and linearity of serum sdLDL-C kit using enzymic method was assessed. One hundred and twenty healthy persons were recruited to establish serum sdLDL-C reference interval. Two hundred and twelve patients underwent coronary angiography were enrolled in the study.Among them 110 cases were positive for coronary angiography, where as 102 cases were negative. We examined serum levels of sdLDL-C in 110 patients with positive angiography, 102 patients with negative angiography and 120 healthy volunteers. Positive group was classfied into severe group(Gensini score>30) and mild group (Gensini score≤30).Results The accuracy and precision of sdLDL-C examination were in compliance with manufacturer′s statement and there was a good linear correlation(Y=0.9937X-0.1063,R2=0.99) in range of 0.06-2.45 mmol/L. The reference interval of sdLDL-C was 0.15-0.97 mmol/L and without gender and age specificity. The level of sdLDL-C was higher in positive angiography group than in negative angiography group and healthy control group(P<0.01). The level of sdLDL-C was higher in severe group than in mild group(P<0.05). Binary stepwise regression analysis demonstrated that sdLDL-C was independently associated with the severity of coronary heart disease(OR=3.101,P<0.05).ConclusionsExperiment data demonstrated that serum sdLDL-C kit using enzymic method has good performance in the accuracy, precision and linearity. SdLDL-C that plays an important role in the occurrence and progression of coronary heart disease, is an independent important risk of the severity of coronary heart disease.
9.Changes in natural killer cell subsets defined by CD11b and CD27 in spleen of septic mice
Lan WU ; Guolin WANG ; Caifeng LI ; Yu ZHANG ; Suqian GUO ; Zhiqiang WANG ; Min PENG ; Hailong CUI
Chinese Journal of Anesthesiology 2017;37(5):618-620
Objective To evaluate the changes in natural Killer (NK) cell subsets definetd by CD11b and CD27 in the spleen of septic mice.Methods A total of 168 pathogen-free healthy male C57BL/6 mice,weighing 20-30 g,aged 8-10 weeks,were divided into 2 groups (n=84 cach) using a random number table:sham operation group (Sham group) and sepsis group (Sep group).Sepsis was induced by cecal ligation and puncture in chloral hydrate-anesthetized mice.Thirty mice in each group were selected to assess the survival within 4 days after operation,and the survival rate was calculated.At 2,4,6,24,48 and 72 h after operation (T1-6),6 mice were randomly selected,and blood samples were taken from the eyeballs for determination of serum tumor necrosis factor-alpha and interleukin-10 concentrations by enzyme-linked immunosorbent assay.Six mice were randomly selected at T4-6 and sacrificed,and the spleens were removed for measurement of the percentage of NK cells and their subsets by flow cytometry.Results Compared with Sham group,the survival rate was significantly decreased at different time points,the serum necrosis factor-alpha concentration at T1-3,6 and serum interleukin-10 concentration at T3-6 were increased,the percentage of NK cells was decreased at T4-6,the percentage of CD27-CD11b+NK cells was decreased and the percentage of CD27+CD11b+ and CD27+CD11b-NK cells was increased at T5,the percentage of CD27-CD11b-NK ceils was decreased at T4,5,and the percentage of CD27-CD11b-NK cells was increased at T6 in Sep group (P<0.05).Conclusion Changes in NK cell subsets defined by CD11b and CD27 in the spleen play an important role in the development of sepsis in mice.
10.Reports of 5 cases of kidney transplantation from donors with severe hand-foot-mouth disease
Chen GAO ; Bichen WU ; Gongbin LAN ; Fenghua PENG ; Shaojie YU ; Yong GUO ; Longkai PENG
Chinese Journal of Organ Transplantation 2017;38(3):141-144
Objective To investigate the clinical effect and safety of kidney transplantation from donors with severe hand-foot-mouth disease (HFMD).Methods Five cases of kidney transplantation from three donors with HFMD between Jan.2014 and Dec.2016 were analyzed.The age of three donors was 2 years,2 years and one month,and 3 years and 11 months respectively,and body weight was 11 kg,10 kg and 15 kg respectively.The age of recipients ranged from 26 to 41 years and weight from 50 to 59 kg.Single kidney transplantations were performed on 4 cases,and dual separating kidney transplantation on one case.Results One case of the transplantations was failure due to the allograft artery thrombosis.The rest 4 cases gained satisfied clinical effect.None of the 5 cases showed any symptoms associated with HFMD.Conclusion The clinical effect of kidney transplantation from donors with severe HFMD is satisfactory.The organs from donors with severe HFMD could only be used by adult recipients.