3.Immunological activity of Streptomyces polysaccharide in normal and immunosuppressed mice.
Xiao-yun WEN ; Chao SHI ; Shu-guang WU
Journal of Southern Medical University 2008;28(7):1168-1171
OBJECTIVETo investigate the immunological activity of Streptomyces polysaccharide (SMP) on normal and immunosuppressed mice.
METHODSThe effect of SMP on the proliferating activity of normal mouse splenocytes was tested in the mixed lymphocyte culture, and the changes of peripheral blood T lymphocytes were evaluated with acid a-naphthyl acetate esterase (ANAE) method. The ratio of Lyt2+ and L3T4+ T cell subsets was measured by flow cytometry.
RESULTSSMP stimulated obvious proliferation of mixed lymphocytes, showed protective effects on T lymphocyte and increased the ratio of Lyt2+ and L3T4+ cell subsets to nearly normal level in immunosuppressed mice.
CONCLUSIONSSMP can regulate the immune function in mice.
Animals ; CD4-Positive T-Lymphocytes ; immunology ; Female ; Immunocompromised Host ; immunology ; Lymphocyte Culture Test, Mixed ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Polysaccharides ; immunology ; Spleen ; cytology ; Streptomyces ; chemistry ; immunology ; T-Lymphocytes ; cytology ; immunology
4.Analysis of the data for inpatients with acute organophosphorous pesticide poisoning in Wucheng.
Yun-he HUO ; Xiu-hua WANG ; Xiao-ying SHANG ; Shuang-lian LIU ; Guang-shu CUI
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(1):32-32
Acute Disease
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Adolescent
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Adult
;
Aged
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Child
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Child, Preschool
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China
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Humans
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Infant
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Inpatients
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Insecticides
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poisoning
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Middle Aged
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Organophosphorus Compounds
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Pesticides
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poisoning
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Poisoning
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etiology
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mortality
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therapy
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Risk Factors
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Survival Rate
5.Effect of modified xiaoyao powder for improving sleep in patients with psychological stress insomnia.
Yan LI ; Bi-yun XU ; Fang XIAO
Chinese Journal of Integrated Traditional and Western Medicine 2009;29(3):208-211
OBJECTIVETo subjectively and objectively assess the effect of Jiawei Xiaoyao Powder (JXYP) on sleep in patients with psychological stress insomnia. METHHODS: A randomized controlled study was conducted in 33 patients with psychological stress insomnia. They were assigned to 4 groups, 4 in the TCM group treated with JXYP, 5 in the Western medicine (WM) group treated with Estazolam, 9 in the integrated medicine (IM) group treated with JXYP plus Estazolam, and 10 in the control group treated with placebo. Quality of sleep in patients was assessed subjectively and objectively before treatment and 6 weeks after treatment by Pittsburgh sleep quality index (PSQI), self-rating scale of sleep (SRSS) and polysomnography (PSG), respectively.
RESULTSSubjective assessment on sleep showed that after 6-week treatment, the scores of PSQI and SRSS remarkably reduced in the TCM, IM and control groups (P < 0.05), while the decrease was insignificant in the WM group (P > 0.05), but no significant difference between groups was shown. The objective assessment by PSG showed that no significant change was found after treatment in parameters of total sleep time (TST), sleep time of phase 1 and 2, slow wave phase, rapid-eye-movement (REM) phase, sleep latency, REM sleep latency, also in long waking and short waking times in all group (P > 0.05), but a significant increase of sleep efficacy (P < 0.05) and an increasing trend of TST (P > 0.05) were shown in the IM group, and an increasing trend of both in the TCM group (P > 0.05).
CONCLUSIONJXYP, combined with or without Estazolam, can improve the quality of sleep subjectively, and the combination of the two could enhance the efficacy of sleep in patients with psychological stress insomnia.
Adult ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Estazolam ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Phytotherapy ; Sleep Initiation and Maintenance Disorders ; drug therapy ; psychology ; Stress, Psychological ; complications ; Young Adult
6.Chemical constituents from Morus notabilis and their cytotoxic effect.
Pan ZHEN ; Gang NI ; Xiao-guang CHEN ; Ruo-yun CHEN ; Han-ze YANG ; De-quan YU
Acta Pharmaceutica Sinica 2015;50(5):579-582
Une new flavonoids named as notabilisin K (1), together with four known compounds, morusin (2), mulberrofuran A (3), neocyclomorusin (4) and mornigrol F (5) are separated from 95% ethanol extracts of the twigs of Morus notabilis. Compounds 2-5 are separated from this plant for the first time. Notabilisin I, notabilisin J exhibits certain effect against cells of HCT-116, HepG2 and A2780 with IC50 values ranging from 1.47 μmol x L(-1) to 5.46 μmol x L(-1). Morusin exhibits strong effect against five kinds of human cancer cells (BGC823, A2780, HCT-116, HepG2 and NCI-H1650) with IC50 values ranging from 0.74 μmol x L(-1) to 1.58 μmol x L(-1).
Antineoplastic Agents, Phytogenic
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chemistry
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Benzofurans
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chemistry
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Flavonoids
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chemistry
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Hep G2 Cells
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Humans
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Inhibitory Concentration 50
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Morus
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chemistry
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Plant Extracts
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chemistry
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Terpenes
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chemistry
7.Effect of Ginkgo biloba Tablet on the Expression of Scavenger Receptor A of the Aortic Wall in Atherosclerotic Rats.
Gui-yue ZHU ; Wei ZHU ; Ling-yun PAN ; Xiao-jing MA ; Hai-tao YUAN ; Guang YANG
Chinese Journal of Integrated Traditional and Western Medicine 2016;36(4):449-453
OBJECTIVETo observe the expression of Ginkgo biloba Tablet (GbT) on scavenger receptor A (SRA) of the aortic wall and changes of serum inflammatory factors in atherosclerotic rats, and to explore its new mechanism for fighting against atherosclerosis (AS).
METHODSTotally 45 male Wistar rats were randomly divided into the control group, the model group, the GbT group, 15 rats in each group. Levels of blood glucose, blood lipids, blood calcium, serum C-reactive protein (CRP), soluble intercellular adhesion molecule-1 (slCAM-1), and soluble vascular cell adhesion molecule-1 (sVCAM-1) were measured in all rats. The expression of SRA in the aortic wall of atherosclerotic rats was observed by immunohistochemical assay. The correlation between the expression of SRA and levels of in-flammatory factors was also observed.
RESULTSCompared with the control group, blood glucose and blood calcium obviously increased (P < 0.05); levels of TG, TC, and LDL-C were significantly elevated (P < 0.01); neointimal areas were significantly thickened, increased intima percentage was significantly enlarged, narrowed lumen index was significantly reduced; levels of CRP, sICAM-1, and sVCAM-1 were significantly elevated in the model group (all P < 0.01). Compared with the model group, blood glucose and blood calcium obviously decreased (P < 0.05); levels of TG, TC, and LDL-C significantly decreased (P < 0.01) in the GbT group. Aortic lumens were obviously narrower in the model group than in the GbT group (P < 0.05). SRA expressed at the aortic wall. The aforesaid 3 indices were significantly improved in the GbT group than in the model group (P < 0.01). Serum levels of CRP, sICAM-1, and sVCAM-1 were significantly decreased in the GbT group than in the model group (P < 0.01). Serum levels of CRP, sICAM-1, and sVCAM-1 were positively correlated with the percentage of SRA positive expression area (r = 0.701, 0.604, 0.581, all P < 0.01).
CONCLUSIONSSerum levels of inflammatory factors in atherosclerotic rats were elevated, and the expression of SRA in the aortic wall was enhanced. The expression of SRA was closely correlated with serum levels of inflammatory factors. GbT could decrease serum levels of inflammatory factors and inhibit the expression of SRA.
Animals ; Aorta ; drug effects ; metabolism ; Atherosclerosis ; drug therapy ; Blood Glucose ; analysis ; C-Reactive Protein ; analysis ; Calcium ; blood ; Drugs, Chinese Herbal ; pharmacology ; Ginkgo biloba ; chemistry ; Intercellular Adhesion Molecule-1 ; blood ; Lipids ; blood ; Male ; Random Allocation ; Rats ; Rats, Wistar ; Scavenger Receptors, Class A ; metabolism ; Tablets ; Vascular Cell Adhesion Molecule-1 ; blood
8.Application of functional MRI in breast diseases
Yun FENG ; Shi-Yuan LIU ; Chen-Guang WANG ; Xiao-Feng TAO ; Jin-Lin WANG ; Jian WANG ;
Chinese Journal of Radiology 2001;0(05):-
Objective To investigate the value of functional MRI in the diagnosis and differential diagnosis of breast diseases.Methods Sixty-five patients with 68 lesions were enrolled in this study. Conventional T_1 WI and T_2 WI scan,dynamic contrast enhanced MRI,diffusion weighted imaging and ~1H single voxel MR spectroscopy were performed consequently.All lesions were verified by pathology,including 4 cases of breast adenosis,22 fibroadenomas,2 chronic inflammations,3 cysts,33 infitrating ductal carcinomas,1 intraductal carcinoma and 3 cystosarcoma phyllodes tumors.Morphological features,maximum enhancement ratio,time-intensity curve,apparent diffusion coefficient and Choline peak were analyzed. Results The detection rates of T_1 WI and T_2 WI were 14.7%(n=10)and 51.5%(n=35).The sensitivity,specificity,accuracy of dynamic contrast.enhanced MRI for the malignant tumor were 94.6%, 71.4% and 76.5% respectively.Retrospective study showed that diffusion weighted imaging,with the b value from 800 s/mm~2 to 1000 s/mm~2,could be used to differentiate various types of breast lesions.~1H signal voxel spectroscopy had a sensitivity of 51.4%,specificity of 82.6%,and accuracy of 67.6% for the malignent.The sensitivity,specificity and accuracy could reach 97.3%,90.0% and 92.6% respectively by combining conventional scan,dynamic contrast enhanced MRI and MR spectroscopy.Conclusion Functional MRI,with high sensitivity,specificity and accuracy,can be used widely in the diagnosis of malignant breast lesions.
9.Surveillance on iodine nutrition among population highly risky of iodine deficiency disorder in Meixian County in Guangdong Province
Xiu-yun, XU ; Kui-guang, XIAO ; Si-qiang, LIU ; Xing-ru, XIONG
Chinese Journal of Endemiology 2009;28(3):322-324
Objective To estimate the present salt iodine content and iodine nutrition need of high risk population of iodine deficiency disorder in Meixian County. Methods Each primary school was selected from urban and rural areas(Xiyang Town, 20 kilometers away from Meixian County), the goiter rate of 8 to 10 year-old students was examined and urinary iodine and household salt iodine was sampled. Twenty to 40 year-old women of childbearing age nearby schools around the urban and villages around Xiyang Town were selected to collect their urine and salt samples. At urban hospitals and rural health centers, 0 to 2 year-old infant urine samples were collected, Thyroid gland was palpated and urinary iodine was determined by iodine in urine by As3+-Ce4+catalytic spectrophotometry, salt iodine was determined by direct titration. Results The goiter rates of 8 to 10 year-old students were 1.5 % (3/200), 1.0% (1/100) for the urban area and 2.0% (2/100) for rural area. Median of urinary iodine in 8 to 10 year-old students, infants, women of childbearing age averaged at 237.1 μg/L and 280.1, 234.7,187.6 μg/L respectively, with each being 287.4,245.0,205.5 μg/L in urban area and 278.9,228.5,176.4 μg/L in rural area. Women of childbearing age had a higher percentage of urinary iodine < 50.0 μg/L than students,students had a higher percentage than infants, each being 7.5%(15/200), 4.5%(9/200), 4.0%(4/100). The ration of urinary iodine > 300.0 μg/L was more in infants than in students, that in students was more than that in women of childbearing age, each being 33.0% (33/100), 30.0% (60/200),22.5% (45/200). The median of salt iodine was 27.2 mg/kg. The coverage of iodized salt was 100.0%(400/400). Ninty-seven percent(194/200) and 96.0% (192/200) of qualified iodized salt were consumed in urban area and in rural area. Conclusions The amount of iodine added to salt meets the requirement in the 3 kinds population risk of iodine deficiency disorder. But a higher iodine status has been found out in students and infants. It is reasonable to decrease the present salt iodine content.
10.Analysis of the causes of pyogenic granuloma after hydroxyapatite orbital implants
Yan, ZHU ; Yu-Guang, ZHU ; A-ping, ZHAI ; Xiu-Yun, LI ; Xiao-Jun, FAN ; Li-Hua, ZHANG
International Eye Science 2009;9(2):223-226
AIM: To study the causes of pyogenic granuloma after hydroxyapatite(HA) orbital implants.METHODS: HA orbital implants (250 cases) in our hospital (68 pegged implants) were reviewed.All patients were followed up from 18 months to 10 years. Implants were removed after medical therapy which was proved to be ineffective.RESULTS: Ten of 250 cases of HA orbital implants developed pyogenic granuloma. Pyogenic granuloma occurred in 1 unpegged implants patient and 9 patients after pegging and drilling of HA implantation over 4~7 years. The pyogenic granulomas were not controlled by medical therapy effectively. Implants were removed in 9 cases except 1 case denied removing and continued medical therapy.CONCLUSION: Pyogenic granuloma was serious complication that occurred after HA orbital implants. Partial vascularization, implant exposure, xenogenic sclera implant, pegging and drilling of HA implantation are risk factors that affect the development of pyogenic granuloma.Pyogenic granuloma hasn't relation with implanted peg material. Pyogenic granuloma denotes the potential implant infection, and all implants should be removed finally.