1.Effect of bifidobactria on dextran sulphate sodium-induced acute ulcerative colitis in mice
Hong-Hui CHEN ; Fang-Gen LU ; Ji-Cheng PENG ;
Chinese Journal of Digestion 2001;0(12):-
Objective To investigate the effect of bifidobacteria on dextran sulphate sodium(DSS)- induced acute ulcerative colitis in mice.Methods Thirty BALB/C mice were randomly divided into nor- mal control group (n=10),0501 strain group (n=10) and c122 strain group (n=10).Fifty BALB/ C mice received 5% dextran sulphate sodium(DSS) for 7 days to induce ulcerative colitis.The mice were then divided to model group,negative control group(perfused with 0.9 NaCl solution ),positive control group(perfused with SASP of 20 mg/ml),DSS + 0501 strain group(perfused with 1?10~9 CFU/ml bifidobacteria 0501 strain solution and DSS + c122 strain group (perfused with 1?10~9 CFU/ml bifidobacteria c122 strain solution).All mice were sacrificed 9 days later.The colon specimens were measure by histoehemical staining with H-E.The expressions of interleukin-10 (IL-10) and its protein were detected by RT-PCR and immunohistochemistry respectively.Results The degree of colon inflam- mation in mice both in DSS+ 0501 strain and DSS+ c122 strain groups were aggravated and expressions of IL-10 mRNA and protein were reduced compared to model group.No colon inflammation was found in 0501 strain and c122 strain groups.Conclusion Some strain of bifidobaeteria may aggravate colon in- flammation in mice when mucosal harrier is destroyed.
2.Effect of reduced glutathione on the proliferation,oxidative stress and transforming growth factor?1 expression of human hepatic stellate cells
Mei LIU ; Lun-Gen LU ; Ai-Xia DOU ; Weihua CHEN ; Ruidan ZHENG ; Minde ZENG ; Jingyuan FANG ;
Chinese Journal of Digestion 2001;0(10):-
Objective To investigate the impact of reduced glutathione(GSH) on the prolifera- tion,oxidative stress and transforming growth factor?1(TGF-?1) expression of human hepatocytes and hepatic stellate cells(HSCs)(LX-2 cell line).Methods Human hepatocytes and HSCs were incubated with various concentrations of GSH(0.5—50 mmol/L or 0.5—10 mmol/L).The effects of GSH on the proliferation of hepatocytes and HSCs were studied by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphennyhera- zolium bromide colorimetric assay.Human hepatocytes and HSCs were co-cultured with GSH and ferric nitrilotriacetic acid,superoxide dismutase (SOD) activity and malondialdehyde (MDA) contents were detected.HSCs were incubated with high(5.0 mmol/L),media(2.5 mmol/L) and low (0.5 mmol/L) concentrations of GSH,the expressions of TGF-?1 mRNA and protein were detected by ELISA and real- time PCR.Results In concentration ranged from 2.5 to 10 mmol/L,the GSH could promote the pro- liferation of hepatocytes but no HSCs,significantly increased the activity of SOD and decrease the con- tents of MDA in hepatocytes and HSCs,and inhibited the expression of TGF-?1 in HSCs.Conclusions GSH can not only promote the proliferation of hepatocytes,but also protect hepatocytes and HSCs from oxidative stress,and inhibit the secretion of TGF-?1 in HSCs.GSH may play a role in hepatocellular protection,antioxidation and anti-fibrosis.
3.Effect of blood activating stasis removing method on prognosis of intracerebral hemorrhage patients.
Li-xin YUAN ; Che CHEN ; Gen-ming ZHANG ; Li ZHOU ; Ying CHEN ; Fang-yuan CUI ; Ying GAO
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(2):174-178
OBJECTIVETo observe the clinical effect and safety of blood activating stasis removing method (BASRM) on intracerebral hemorrhage patients.
METHODSA multi-center, prospective, randomized, open, controlled and blinded endpoint design was adopted. Totally 228 intracerebral hemorrhage patients were assigned to the treatment group and the control group, 114 in each group by center randomized method. All patients received basic treatment of Western internal medicine. Patients in the treatment group received intravenous infusion with Xingnaojing Injection (XI) from the 1st day of grouping, 20 mL per day for 14 days. Then they took or were nasally fed with Chinese medical granules (by syndrome typing as complicated with wind syndrome, fire syndrome, and phlegm syndrome) for 21 days. Finally they took Naoxueshu Oral Liquid (NOL), 10 mL each time, 3 times per day till the 3rd month of incidence. Patients' disability degree, activities of daily living, neurological impairment, the effective rate, physiologic functions, mental status, social relationship, and degree of treatment satisfaction were assessed using Modified Rankin Scale (MRS), Barthel index (BI), National Institute of Health Stroke Scale (NIHSS), and patient reported outcome (PRO). Head CT was performed to evaluate the absorption of hematoma at the 1st and 7th day of grouping. The safety was also assessed.
RESULTSTotally 108 patients in the treatment group and 112 patients in the control group completed the trial. There was no statistical difference in the total effective rate between the two groups after 3 months of treatment (P>0.05). The MRS score was obviously lower in the treatment group than in the control group (P<0.01) at month 3 after attack (P<0.01). There was statistical difference in the difference between pre-post hematoma volume between the two groups after 7-day treatment (P<0.05). The NIHSS score of two groups at the 7th, 14th, 21st day, and 3rd month decreased significantly (P<0.05). Compared with the control group, the decremenit of NIHSS score decreased more obviously in the treatment group at day 7, 21, and 3rd month (P<0.05). Compared with the control group, the BI increased (P<0.01); physiologic fupctions, social relationship, treatment satisfaction and total score in PRO scale were all lower in the treatment group than in the control group (P<0.05, P<0.01). The incidence of adverse events occurred in 7 cases (6.14%) in the treatment group and 5 cases (4.39%) in the control group, with no statistical difference (P>0.05).
CONCLUSIONBASRM could lower the deformity rate of intracerebral hemorrhage patients at month 3, effectively promote hematoma absorption within 7 days, improve neurologic impairment, and elevate living abilities at month 3 of onset.
Activities of Daily Living ; Cerebral Hemorrhage ; therapy ; Hematoma ; Humans ; Medicine, Chinese Traditional ; Prognosis ; Prospective Studies ; Syndrome
4.Evaluation of sampling by tracheal aspiration and nasopharyngeal swabs in the identification of bacterial etiology of acute lower respiratory tract infection in children.
Rong CHEN ; Gen-Ming ZHAO ; Yu-Zun LIN ; Chuang-Li HAO ; Yun-Fang DING
Chinese Journal of Contemporary Pediatrics 2010;12(5):393-395
Acute Disease
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Bacteria
;
isolation & purification
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Child, Preschool
;
Haemophilus influenzae
;
isolation & purification
;
Humans
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Infant
;
Infant, Newborn
;
Nasopharynx
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microbiology
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Respiratory Tract Infections
;
diagnosis
;
microbiology
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Streptococcus pneumoniae
;
isolation & purification
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Trachea
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microbiology
5.Screening for resistance gene candidate from a genomic TAC library of Triticum aestivum-Haynaldia villosa translocation line 6VS/6AL by pooled PCR.
Gen-Ji QIN ; Pei-Du CHEN ; Yao-Guang LIU ; Yu-Da FANG ; Da-Jun LIU
Chinese Journal of Biotechnology 2002;18(3):313-317
A pair of degenerate primers were designed based on NBS (nucleotide binding site, NBS) domain of resistance(R) gene and used to perform PCR with cDNA from the translocation line 6VS/6AL of Triticum aestivum-Haynaldia villosa. A clone (N7) characterized with NBS was obtained by sequencing analysis. Two specific primers were designed from the N7 sequence and used to screen a genomic TAC (transformation-competent artificial chromosome, TAC) library of 6VS/6AL consisting of ca. 2 x 10(6) clones. The library was stored as clone pools in twenty-two 96-well plates, each well containing approximately 1000 TAC clones. TAC plasmids were prepared from all the 2112 pools. Using a pooled PCR screening procedure, a positive TAC clone having a 40 kb insert was obtained. The positive clone was confirmed by Southern hybridization with the NBS fragment as a probe. The results indicate that the pooled PCR method is effective for screening of genomic libraries having large number of clones.
Amino Acid Sequence
;
Base Sequence
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Binding Sites
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Blotting, Southern
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Chromosomes, Artificial
;
Genomic Library
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Molecular Sequence Data
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Polymerase Chain Reaction
;
methods
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Translocation, Genetic
;
Triticum
;
genetics
6.Clinical application of the reverse neurocutaneous flap with anterior cutaneous branch of the femoral nerve supplied by the perforator of saphenous artery.
Gen WEN ; Yi-min CHAI ; Bing-fang ZENG ; Chun-yang WANG ; Xu-hua WU ; Keng CHEN
Chinese Journal of Plastic Surgery 2009;25(6):430-432
OBJECTIVETo report the operative technique and clinical application of the neurocutaneous flap with anterior cutaneous branch of the femoral nerve supplied by the perforator of saphenous artery.
METHODSThe reverse neurocutaneous flap with anterior cutaneous branch of the femoral nerve supplied by the perforator of saphenous artery was used for repairing the defect around knee or at the upper pad of leg. Since Oct. 2005, 16 cases were treated. The flap size ranged from 15 cm x 7 cm to 30 cm x 15 cm. Flap rotation angle ranged from l00 degrees to 180 degrees.
RESULTS13 flaps survived completely. Flap necrosis happened at the 1/7 - 1/5 distal end of the 3 flaps, which healed with dressing or local flap advancement. The patients were followed up for 6 to 24 months with satisfactory functional and cosmetic results. There was no morbidity at the donor site.
CONCLUSIONThe flap has the advantages of both the perforator flap and the neurocutaneous flap. The size of the neurocutaneous flap with the anterior cutaneous branch of the femoral nerve can be enlarged for the large defect at lower extremity.
Adolescent ; Adult ; Arteries ; surgery ; Female ; Femoral Nerve ; surgery ; Humans ; Male ; Middle Aged ; Skin Transplantation ; methods ; Surgical Flaps ; blood supply ; innervation ; Young Adult
8.Protective effect against monoammonium glycyrrhizinate on lipopolysaccharide-induced acute lung injury in mice.
Hui-Fang TANG ; Lian-Gen MAO ; Ruo-An JIANG ; Yun QIAN ; Ji-Qiang CHEN
Acta Pharmaceutica Sinica 2007;42(9):954-958
The aim of this study is to investigate the effect of monoammonium glycyrrhizinate (MAG) on lipopolysaccharide (LPS) -induced acute lung injury (ALI) and its anti-inflammatory mechanism in mice. All male ICR mice were randomly divided into six groups: LPS group; control group; MAG 3, 10, and 30 mg x kg(-1) groups; and dexamethasone (DXM) 5 mg x kg(-1) group. Lung dry weight and wet weight percentage and permeability were detected. Neutrophil infiltration in bronchoalveolar lavage fluid (BALF) and lung tissues was detected by cell count and morphological analysis. The levels of TNF-alpha and IL-10 in lung were detected by ELISA. MPO activity was determined followed the specification. MAG induced a decrease in lung wet weight/dry weight ratio, and significantly decreased in total leucocyte number and neutrophil percentage in the BALF, and MPO activity of lung in a dose-dependent manner. Importantly, It could up-regulate the IL-10 level and down-regulate the TNF-alpha level in the lung tissue of ALI mice. These results suggested that the protective effect of MAG in mice on LPS induced ALI was associated with the regulation of TNF-alpha/IL-10 balance, and MAG maybe a potentially treatment for ALI/ARDS.
Acute Lung Injury
;
chemically induced
;
metabolism
;
pathology
;
Animals
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Anti-Inflammatory Agents
;
pharmacology
;
Bronchoalveolar Lavage Fluid
;
cytology
;
Glycyrrhizic Acid
;
pharmacology
;
Interleukin-10
;
metabolism
;
Leukocyte Count
;
Lipopolysaccharides
;
Lung
;
pathology
;
Male
;
Mice
;
Mice, Inbred ICR
;
Neutrophils
;
pathology
;
Organ Size
;
drug effects
;
Peroxidase
;
metabolism
;
Protective Agents
;
pharmacology
;
Tumor Necrosis Factor-alpha
;
metabolism
9.Long Noncoding RNA Signature and Disease Outcome in Estrogen Receptor-Positive Breast Cancer Patients Treated with Tamoxifen.
Gen WANG ; Xiaosong CHEN ; Yue LIANG ; Wei WANG ; Yan FANG ; Kunwei SHEN
Journal of Breast Cancer 2018;21(3):277-287
PURPOSE: Recent data have shown that the expression levels of long noncoding RNAs (lncRNAs) are associated with tamoxifen sensitivity in estrogen receptor (ER)-positive breast cancer. Herein, we constructed an lncRNA-based model to predict disease outcomes of ER-positive breast cancer patients treated with tamoxifen. METHODS: LncRNA expression information was acquired from Gene Expression Omnibus by re-mapping pre-existing microarrays of patients with ER-positive breast cancer treated with tamoxifen. The distant metastasis-free survival (DMFS) predictive signature was subsequently built based on a Cox proportional hazard regression model in discover cohort patients, which was further evaluated in another independent validation dataset. RESULTS: Six lncRNAs were found to be associated with DMFS in the discover cohort, which were used to construct a tamoxifen efficacy-related lncRNA signature (TLS). There were 133 and 362 patients with TLS high- and low-risk signatures in the discover cohort. Both univariate and multivariate analysis demonstrated that TLS was associated with DMFS. TLS high-risk patients had worse outcomes than low-risk patients, with a hazard ratio of 4.04 (95% confidence interval, 2.83–5.77; p < 0.001). Both subgroup analysis and receiver operating characteristic analysis indicated that TLS performed better in lymph node-negative, luminal B, 21-gene recurrence score high-risk, and 70-gene prognosis signature high-risk patients. Moreover, in a comparison of the 21-gene recurrence score and 70-gene prognosis signature, TLS showed a similar area under receiver operating characteristic curve in all patients. Gene Set Enrichment Analysis indicated that TLS high-risk patients showed different gene expression patterns related to the cell cycle and nucleotide metabolism from those of low-risk patients. CONCLUSION: This six-lncRNA signature was associated with disease outcome in ER-positive breast cancer patients treated with tamoxifen, which is comparable to previous messenger RNA signatures and requires further clinical evaluation.
Breast Neoplasms*
;
Breast*
;
Cell Cycle
;
Cohort Studies
;
Dataset
;
Estrogens*
;
Gene Expression
;
Humans
;
Metabolism
;
Multivariate Analysis
;
Neoplasm Metastasis
;
Phenobarbital
;
Prognosis
;
Recurrence
;
RNA, Long Noncoding*
;
RNA, Messenger
;
ROC Curve
;
Tamoxifen*
10.Advances in studies compatibility applied toattenuation and synergy of Tripterygium wilfordii.
Yi RAO ; Hui-zhen WEI ; Yin-fang CHEN ; Hai-hong FANG ; Sheng-sheng ZHU ; You-gen WU ; Jie ZHANG
China Journal of Chinese Materia Medica 2008;33(14):1658-1661
Review the research and development status that Chinese medicine are compatible with Tripterygium wilfordii for attenuation and synergy for recent year. From modern medicine view and Chinese medicine dialectical perspective explain the mechanisms and methods of compatibility applied to attenuation and synergy of T. wilfordii. Provide a reference for reasonable application of other toxic Chinese medicine. Prefer the suggestion that Chinese medicinal formulae can be developed into Chinese medicine compound preparation.
Animals
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Drug Combinations
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Drugs, Chinese Herbal
;
therapeutic use
;
Humans
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Medicine, Chinese Traditional
;
methods
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Tripterygium
;
chemistry