1.Advances in prevention and treatment on inflammation and myocardial ischemia-reperfusion injury by PPAR-γ ligands
Chinese Journal of Pathophysiology 2010;26(1):197-199,208
Peroxisome proliferation-activated receptor-γ (PPAR-γ) is a ligand-activated transcription factor belonging to the nuclear hormone receptor superfamily and participates in the regulation of various metabolic pathways as well as inflammatory responses. PPAR-γ ligands significantly improve myocardial functional recovery and prevent ischemia-reperfusion induced injury. Given the increasing understanding of the cardioprotective effects of PPAR-γ ligands, we know today that the therapeutic effects of PPAR-γ ligands reach far beyond their use as insulin-sensitizers, as many of these agents exert beneficial effects in the conditions associated with ischemia-reperfusion and inflammation.
2.Comparison of three extraction methods to extract Zanthoxylum oil
Chinese Traditional Patent Medicine 1992;0(04):-
AIM: To extract Zanthoxylum oil from the seeds of Zanthoxylum bungeanum Maxin, and find out a better extraction method and its optimized operating conditions. METHODS: Zanthoxylum oil was extracted by distillation method, solvent extraction and supercritical fluid extraction, respectively. The products gained in each experiment was analyzed by GC after it had been methyl esterified. RESULTS: The yield of Zanthoxylum oil extracted by distillation, solvent extraction and supercritical fluid extraction was 0.88 %, 13.73 % and 13.52 %, respectively, and its content of unsaturated fatty acid 4.50 %, 65.97 %, 74.97 %, respectively. CONCLUSION: Supercritical fluid extraction was the better of the three mehtods, whose optimized operating conditions consisted of 30 MPa pressure, 50 ?C operating temperature and 5 h extraction time.
3.Advances in prevention and treatment on inflammation and myocardial ischemia-reperfusion injury by PPAR-? ligands
Chinese Journal of Pathophysiology 1986;0(01):-
Peroxisome proliferation-activated receptor-? (PPAR-?) is a ligand-activated transcription factor belonging to the nuclear hormone receptor superfamily and participates in the regulation of various metabolic pathways as well as inflammatory responses. PPAR-? ligands significantly improve myocardial functional recovery and prevent ischemia-reperfusion induced injury. Given the increasing understanding of the cardioprotective effects of PPAR-? ligands,we know today that the therapeutic effects of PPAR-? ligands reach far beyond their use as insulin-sensitizers,as many of these agents exert beneficial effects in the conditions associated with ischemia-reperfusion and inflammation.
4.Prevention and Treatment of Bacterial Infection Occurred after Orthotopic Liver Transplantation
Xiu-Feng NIU ; Jun LIU ;
Chinese Journal of Bases and Clinics in General Surgery 2003;0(03):-
11.0 mmol/L).Perioperative decontamination in digestive tract was a protective factor in the prevention of bacterial infection.Conclusion Bacterial infection is one of the most severe complications after OLT.Therefore,it is very important to remove those risk factors,make early diag- nosis and take effective treatment.
5.MCPIP1 induces cell cycle arrest in breast cancer cell line MDA-MB-231
Wenbao LU ; Mingming LIU ; Ruijuan XIU
Basic & Clinical Medicine 2017;37(5):608-613
Objective To investigate the functions of Monocyte chemotactic protein-induced protein 1 (MCPIP1) in human breast cancer cell line MDA-MB-231.Methods MDA-MB-231 cells were transfected with GFP-tagged MCPIP1 by Tet-on inducing expression system.Endogenous MCPIP1 was knocked down by stable expressing shRNA.MTT assay was performed to measure the growth of MDA-MB-231 cells after overexpression or knockdown of MCPIP1.FACS method was used to analyze cell cycle in MDA-MB-231 cells.Real-time PCR was used to test the expression of cell cycle-related mRNAs expression and their half-lives.RNA-IP experiment was conducted to detect the mRNA directly enriched by MCPIP1.Luciferase assay was performed to determine whether the mRNA decay was mediated through 3′UTR.Results MCPIP1 overexpression significantly inhibited cell proliferation(P<0.05), while knockdown MCPIP1 promoted cell proliferation with statistical significances (P<0.05).MCPIP1 induced cell cycle arrest in MDA-MB-231 with statistical significance (P<0.01).MCPIP1 overexpression reduced the half-lives of cell cycle mRNAs (CDK2,CDK6,cyclin D1,cyclin E1,respectively) with significance (P<0.01).In addition, cell cycle-related mRNAs were able to be pulled down by GFP-MCPIP1 but not isotype IgG(P<0.05).Compared with control vector, MCPIP1 significant suppressed luciferase activities of all four 3′UTR reporters (P<0.05).Conclusions MCPIP1 functions as a tumor suppressor in human breast cancer cell line MDA-MB-231 through inducing G1 cell cycle arrest.
7.Role of long non - coding RNA in the pathogenesis of diabetic retinopathy
Xiu-Juan, YUE ; Sheng, SU ; Ping, LIU
International Eye Science 2017;17(10):1852-1855
Long non-coding RNA ( LncRNA) is a class of transcript (>200 nucleotides) that do not encode proteins. It plays an important role in epigenetic regulation and gene expression at transcriptional or post transcriptional level. The abnormal expression of LncRNA may lead to various pathological processes. Diabetic retinopathy ( DR ) is a multifactorial disease. Recent studies have shown that many specific expressions of LncRNAs are closely related to the genesis of DR. In this review, we summarized the recent advances in the function of LncRNA, the regulatory mechanisms of LncRNA involved in the development of DR, and the related therapies.
8. Analysis and evaluation of dynamic accumulation of multiple active components in xanthii herba
Chinese Pharmaceutical Journal 2016;51(17):1498-1507
OBJECTIVE: To develop a method for the determination of phenolic acids, anthraquinones, and flavonoids in Xanthii Herba at different harvest time by UPLC-QTRAP-MS/MS and analyze the dynamic accumulation of multiple active components in Xanthii Herba. METHODS: Chromatographic separation was conducted on an Agilent ZORBAX SB-C18 (4.6 mm×250 mm, 5 μm) column with gradient elution using methanol and 0.2% formic acid as mobile phases. MS analysis was carried out using electrospray ionization in negative MRM mode. Grey related degree was used for the comprehensive evaluation. RESULTS: The calibration curves for the 18 components showed good linearity (r>0.9994) in the range of the tested concentrations. The average recoveries of the 18 components were from 96.96% to 102.55% with relative standard deviations (RSDs) less than 3%. There were differences in the contents of 18 components in Xanthii Herba at different harvest periods. Xanthii Herba had high quality in late July and mid-July. CONCLUSION: This study reveals the rule of the dynamic accumulation of 18 components in Xanthii Herba and provides information for the suitable harvest time.
9.Aspergillus fumigatus pneumonia associated with intracerebral abscess in a child.
Min JIANG ; Xiu-yun LIU ; Wei WANG
Chinese Journal of Pediatrics 2005;43(8):637-638
Antifungal Agents
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therapeutic use
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Aspergillus fumigatus
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pathogenicity
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Brain Abscess
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diagnostic imaging
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drug therapy
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microbiology
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Humans
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Infant
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Male
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Neuroaspergillosis
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complications
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pathology
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Occipital Lobe
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pathology
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Pulmonary Aspergillosis
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diagnostic imaging
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drug therapy
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microbiology
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Tomography, X-Ray Computed
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Treatment Outcome