1.Prognostic value of lncRNA HOTAIR expression in patients with cancer: A Meta-analysis.
Journal of Central South University(Medical Sciences) 2016;41(12):1352-1357
To systematically review the prognostic value regarding the expression of long non-coding RNA (lncRNA) Hox transcript antisense intergenic RNA (HOTAIR) in patients with cancer.
Methods: Databases including The Cochrane Library, EMBASE, MEDLINE, and PubMed were searched to collect English literature on the correlation between lncRNA HOTAIR expression and overall survival in tumors. The retrieval time was from inception to September 2015. After data were extracted, a Meta-analysis was performed using RevMan 5.3 software.
Results: A total of 17 studies were included, which was involved in 1 639 patients. The Meta-analysis showed that high expression of HOTAIR could predict poor overall survival in cancer (HR: 2.39, 95% CI 2.01-2.86, P<0.001). High expression of HOTAIR could also predict poor overall survival both in digestive tumor (HR: 2.51, 95% CI 2.02-3.11, P<0.001) and non-digestive tumor (HR: 2.17, 95% CI 1.59-2.98, P<0.001). Moreover, overexpression of HOTAIR was found to be significantly associated with recurrence-free survival.
Conclusion: The overexpression of lncRNA HOTAIR might be associated with poor prognosis in patients with cancer.
Biomarkers, Tumor
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genetics
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Humans
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Neoplasms
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diagnosis
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genetics
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mortality
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Prognosis
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RNA, Long Noncoding
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genetics
2.Neural stem cells induced by neotype three-dimensional polypeptide-based self-assembled hydrogel.
Yulin SONG ; Qixin ZHENG ; Xiaodong GUO
Journal of Biomedical Engineering 2010;27(3):612-616
The amphiphilic polypeptide (PA) was self-assembled into three-dimensional (3-D) porous complex of hydrogel and cells with the addition of NSCs-containing DMEM/F12. Cell differentiation in the surface and that within hydrogel were described. Cells harvested from the cerebral cortex of neonatal mice were triturated and cultivated in serum-free media. 1wt% PA was added into same volume of DMEM/F12 with cell concentration of 1 x 10(5)/ml and self-supported into 3-D hydrogel-cell composition; cells suspended within hydrogel being maintained (Experiment group, EG). lwt% PA was self-assembled into two-dimensional (2-D) hydrogel films triggered by addition of DMEM/F12, and then 1 x 10(5)/ml NSCs was seeded in the surface of films (Control group, CG). Cells in EG and CG were incubated in serum-free media for two weeks and stained with immunocytochemistry methods. TEM showed that the hydrogel derived from PA was composed of network nanofibers with their diameter ranging from 3 to 5 nm and length ranging from 100 nm to 1. 5 microm. Above 50% of cells obtained were Nestin positive cells. LSCM observations demonstrated that above 90% of cells survived two days after incubation within hydrogel, and were differentiated into NF and GFAP positive cells one week after incubation, their differentiation rates were 50% +/- 4.2% and 20% +/- 2.8% respectively; however, cells in CG were also differentiated into NF and GFAP positive cells, their differentiation rates were only 40% +/- 3.4% and 31% +/- 2.3% separately. Peptide-based hydrogel was able to provide 3-D environments for cell survival and induce primarily the differentiation of NSCs into neurons. Our data indicated that peptide-directed self-assembly of hydrogels was useful and it served as the neotype nerve tissue engineering scaffolds.
Animals
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Animals, Newborn
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Cell Culture Techniques
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Cell Differentiation
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drug effects
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Cells, Cultured
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Hydrogel, Polyethylene Glycol Dimethacrylate
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chemistry
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metabolism
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Nanofibers
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chemistry
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Neural Stem Cells
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cytology
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Neurogenesis
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drug effects
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Peptides
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chemistry
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metabolism
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Rats
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Rats, Sprague-Dawley
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Tissue Scaffolds
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chemistry
3.Mineralization of PLGA-ASP-PEG modified with RGD-containing peptide.
Yulin SONG ; Qixin ZHENG ; Jianfeng ZHENG
Journal of Biomedical Engineering 2009;26(5):1056-1059
The RGD-containing peptide was used to modify the surface of porous PLGA-[ASP-PEG], and was incubated in the modified simulated body fluid (mSBF) for two weeks. The mineralization of PLGA-[ASP-PEG] was explored. The active peptide was used to modify PLGA-[ASP-PEG] through cross-linker (Sulfo-LC-SPDP), characterized by X-ray photoelectron spectroscopy (XPS) the peptide-modified PLGA-[ASP-PEG] (Experiment group, EG) and PLGA-[ASP-PEG] without modification (Control group, CG) were all incubated in mSBF for two weeks, confirmed by observation of Scanning electron microscope(SEM) and measurements of Energy dispersive analysis system of X-ray (EDS) and X-ray diffractometry (XRD). XPS indicated that the binding energy of sulphur in EG was 164eV, and the ratio of carbon to sulphur in EG was 99.746 : 0.1014, however, sulphur was not detected in CG; SEM analysis demonstrated that the mineralization layers were more consecutive and compact in EG than in CG. The results of EDS and XRD indicated that the main component of mineral was hydroxyapatite, and the ratio of Ca/P was 1.60 in EG, and 1.52 in CG. RGD-containing peptide provided enough functional groups for mineralization; the mineralized peptide- modified PLGA-[ASP-PEG] possessed the bonelike microstructure.
Biocompatible Materials
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chemistry
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Bone Substitutes
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Bone and Bones
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metabolism
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Calcification, Physiologic
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Lactic Acid
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chemistry
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Oligopeptides
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chemistry
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Osteogenesis
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drug effects
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Peptides
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chemical synthesis
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pharmacology
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Polyglycolic Acid
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chemistry
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Surface Properties
4.RT-ABCDE strategy for management and prevention of human diseases.
Chinese journal of integrative medicine 2008;14(2):147-150
In this article, the authors summarized the RT-ABCDE strategy for the management and prevention of human diseases, which includes ReTro-ABCDE (Examination regularity, Disease and risk factor control, Changing lifestyle and reducing pathways of infection and spread, Biochemical and Antagonistic index control and therapeutic treatment as well as RT--Routine and Right Treatment). The RT-ABCDE strategy, a novel concept and an essential method, should be a routine strategy for disease control and prevention. It should be proposed and applied in both clinical and preventive medicine.
Disease
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Humans
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Life Style
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Periodicity
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Physical Examination
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Preventive Medicine
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methods
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Risk Factors
5.New "P" in Medical Model.
Chun-Song HU ; Tengiz TKEBUCHAVA
Chinese Medical Journal 2016;129(4):492-493
6. Isolation and Identification of Chemical Constituents from Rhizomes of Dendropanax proteus
Jian ZHOU ; Yu-hua LI ; Ying ZHOU ; Yan-ni LYU ; Hong-wei PENG ; Ming-jin JIANG ; Song TAO ; Jin-hua WEN ; Xiao-hua WEI
Chinese Journal of Experimental Traditional Medical Formulae 2019;25(23):128-132
The chemical constituents from 95% ethanol extract of Dendropanax proteus rhizomes and their anti-inflammatory activities were investigated. These compounds in 95% ethanol extract of D. proteus rhizomes were isolated and purified by silica gel column chromatography, medium-pressure liquid chromatography, preparative liquid chromatography, etc. Their structures were elucidated based on the spectral data and physicochemical properties. All the compounds were tested for their ability to inhibit lipopolysaccharide (LPS) induced nitric oxide production in the murine microglia BV2 cell line. Nine compounds were isolated from the ethyl acetate fraction of 95% ethanol extract of D. proteus rhizomes, and identified as (-)-syringaresinol (1), (+)-(7S,8S)-1',4-dihydroxy-3,3',5'-trimethoxy-7',8,9'-trinor-8,4'-oxyneoligna-7,9-diol (2), erythro-guaiacylglycerol-β-O-4'-coniferyl ether (3), threo-guaiacylglycerol-β-O-4'-coniferyl ether (4), coniferyl alcohol (5), 7-O-ethylguaiacylglycerol (6), vanillin (7), syringaldehyde (8), and excoecanol B (9). Compounds 2 and 4 showed neuritis inhibitory activity against microglial inflammation factor, their half inhibitory concentrations (IC50) were 5.85, 7.29 μmol ·L-1, respectively. Compounds 1-6,8-9 are isolated from this plant for the first time, compounds 2 and 4 exhibit the potent inhibitory activity.
7.Effects of acidification pretreatment for respiratory acidosis on the expression of matrix metalloproteinase-9 in rat lung tissues following ischemia/reperfusion.
Liangchao QU ; Yan JIAO ; Zhangjie JIANG ; Zhiping SONG ; Weilu ZHAO
Journal of Central South University(Medical Sciences) 2018;43(11):1177-1181
To establish rat model of lung ischemia/reperfusion (IR) in vivo, and to explore the effects of acidification pretreatment for respiratory acidosis on the expression of matrix metalloproteinase-9 (MMP-9) and the possible mechanisms.
Methods: A total of 36 male Sprague-Dawley rats were divided into a sham group (S group), a IR group, and an experiment group (RA group) (n=12 in each group). The rat left lung hilum in the S group was dissociated, followed by perfusion without ischemia. After the left lung hilum in the IR group was blocked for 45 min, the rats were followed by reperfusion for 180 min. After left lung hilum in the RA group was dissociated, the respiratory parameters were adjusted so that pressure of end tidal carbon dioxide (PETCO2) reached 56-65 mmHg (1 mmHg=0.133 kPa) for 5 min, then the rats was subjected to IR. Lung tissue wet/dry (W/D) and lung permeability index (LPI) were calculated, while the lung histopathology was observed and the MMP-9 protein expression were measured.
Results: Compared with the control group, the W/D and LPI in the IR group and the RA group increased after reperfusion (both P<0.05), and the levels of W/D and LPI in the group RA were lower than that in the IR group (P<0.05). LPI and pathology scores were significantly lower in the RA group than those in the IR group (both P<0.01). After IR, the expression of MMP9 in the lung tissues in the IR group and the RA group increased significantly (both P<0.01). The expression of MMP-9 protein in the RA group was significantly lower than that in the IR group (P<0.01).
Conclusion: After lung IR injury, the expression of MMP-9 protein, vascular permeability and inflammatory exudation is increased. The acidification pretreatment for respiratory acidosis can inhibit the expression of MMP-9 protein and reduce inflammatory exudation after lung IR, showing a protective effect on lung IR injury.
Acidosis, Respiratory
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drug therapy
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prevention & control
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Animals
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Gene Expression Regulation, Enzymologic
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drug effects
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Lung
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enzymology
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Lung Injury
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enzymology
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Male
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Matrix Metalloproteinase 9
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genetics
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Rats
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Rats, Sprague-Dawley
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Reperfusion Injury
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drug therapy
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prevention & control
8.Low-intensity pulsed ultrasound pretreatment inhibits HMGB1 expression and attenuates lung ischemia-reperfusion injury in rats the cholinergic anti-inflammatory pathway.
Liangchao QU ; Jinxiu YAN ; Zhangjie JIANG ; Zhiping SONG ; Foquan LUO ; Qinghua PENG
Journal of Southern Medical University 2018;38(9):1061-1065
OBJECTIVETo observe the effects of low-intensity pulsed ultrasound (LIPUS) pretreatment on pulmonary expression of high mobility group box-1 (HMGB1) in a rat model of lung ischemia-reperfusion (IR).
METHODSThirty-two male SpragueDawley rats weighing 250-300 g were randomly divided (=8) into sham-operated group, lung IR group, LIPUS pretreatment group and pretreatment with α7-nicotinic cholinergic receptor (α7nAChR) antagonist group. In the sham-operated group, the left pulmonary hilum was dissociated without occlusion; in the other 3 groups, the left pulmonary hilum was occluded for 45 min followed by reperfusion for 180 min; LIPUS pretreatment for 30 min and intraperitoneal injection of methyllycaconitine (2 mg/kg), an α7nAChR antagonist, were administered before the operation. The wet/dry weight ratio (W/D) and pulmonary permeability index (LPI) of the lung tissue were measured, and the lung histopathology was observed and scored. The contents of interleukin-1 (IL-1) and IL-6 in the lung tissues were measured using ELISA, and the pulmonary expression of HMGB1 protein was detected using immunofluorescence assay and Western blotting.
RESULTSCompared with those in the sham-operated group, the W/D of the lung tissue, LPI, pathological scores, IL-1 and IL-6 contents in the lung tissue, and pulmonary HMGB1 expression all significantly increased in the other 3 groups ( < 0.05). LIPUS preconditioning significantly lowered the W/D values, LPI, pathological score, IL-1 and IL-6 contents and HMGB1 expression in the lung tissues following lung IR, and these effects were significantly inhibited by administration of methyllycaconitine.
CONCLUSIONSLIPUS preconditioning can reduce lung IR injury possibly by activating α7nAChR-dependent cholinergic anti-inflammatory pathway to reduce lung tissue HMGB1 expression.
9.Practice and Effect of Outpatient and Emergency Prescription Pre-audit by Pharmacists with the Help of Rational Drug Use Software
Shanshan XIE ; Song LIU ; Jinjin WAN ; Leilei MEI ; Ye LIU ; Weifang ZHANG
China Pharmacy 2021;32(7):876-880
OBJECTIVE:To explore the role of pharmacists i n developi ng the outpatient and emergency prescription pre-audit with the help of rational drug use software. METHODS :With the help of rational drug use software ,outpatient and emergency prescription pre-aduit was conducted during Jan.-Apr. 2020;the intervention effects of irrational prescriptions were analyzed. The prescriptions from Sept. to Dec. in 2019 were included in the control group (only for post review ),and the prescriptions from Jan. to Apr. in 2020 were included in the intervention group (pre-audit and post review );the unreasonable prescriptions were compared before and after the intervention. The prescriptions intercepted by the software system from Nov. to Dec. in 2019 were further selected as the interception control group ,and the prescriptions intercepted from Jan. to Feb. in 2020 were selected as the interception intervention group ;the interception situation of prescriptions before and after the intervention was compared ,and the influence of pre-audit on physicians ’prescription behavior was evaluated. In addition ,108 992 prescriptions in Apr. 2020 were selected for post review using the traditional model (i.e. complete manual audit )and the information model (i.e. software-assisted manual audit )respectively;the effects of two models were compared. RESULTS :From Jan. to Apr. in 2020,a total of 2 393 prescriptions were pre-audited by pharmacists ,among which 1 387 prescriptions were reasonable (57.96%)and 1 006 prescriptions were unreasonable and intervened (42.04%). After pharmacist intervention ,983 prescriptions were modified by doctors ,and the success rate of intervention was 97.71% . Compared with control group ,unreasonable rate of outpatient and emergency prescriptions,that of each type of prescriptions were all decreased significantly (P<0.001). Compared with interception control group(1 402 pieces),the number of intercepted prescriptions (721 pieces)was significantly reduced in interception intervention group (P<0.001). Compared with traditional model , the number of prescriptions requiring manual post review and E-mail:xss306@126.com “false positive ” prescriptions were decreased significantly # under information model , and the number of discovered unreasonable prescriptions were increased significantly (P< 0.001). CONCLUSIONS :With the help of rational drug use software ,prescription pre-audit by pharmacists can significantly improve reasonable rate of outpatient and emergency prescriptions. The work intensity of pharmacists in post review of prescriptions can be reduced and the accuracy of prescription review can be improved in the information mode.
10.Analysis of the correlation between the anatomical features of patent foramen ovale and right to left shunt
Yingying XU ; Yan SONG ; Hailan LIU ; Tingting LIU ; Yinghui CHEN ; Yanlin HE
China Modern Doctor 2024;62(9):66-70
Objective To investigate the correlation between the anatomical structure of patent foramen ovale(PFO)observed by transesophageal echocardiography(TEE)and the right to left shunt(RLS)grade of contrast-enhanced transthoracic echocardiography(c-TTE).Methods Ninety cases in which the presence of PFO was suggested by TEE examination as a diagnostic criterion from November 2021 to December 2022 in the First Hospital of Nanchang were retrospectively analysed.According to the c-TTE results of patients,the RLS was divided into 4 levels,and the correlation between PFO structural characteristics and RLS grading was analyzed.Results There was a positive correlation between PFO diameter size and RLS grading in resting state(r=0.381,P<0.05);The PFO diameter of patients with hypermobile interatrial septum(HIS)was larger and the difference was statistically significant(P<0.05);The PFO diameter of patients with persistent RLS was larger than that of excited phase patients,and the difference was statistically significant(P<0.05);There was no significant difference in RLS shunt degree between patients with long tunnel and those without long tunnel;There was no significant difference in RLS grade and PFO diameter size under Valsalva state.Conclusion Research has shown that certain anatomical structures of PFO interact with RLS grading,and PFO anatomical structures can also interact with each other(the opening diameter of the foramen ovale with HIS is larger);At the same time,TEE can clearly show the morphological characteristics of PFO and predict the degree of RLS,so as to further evaluate the possibility of ischemic stroke in patients with PFO,and provide more evidence for the indications for foramen ovale closure.