1.Significance of global end-diastolic volume index in acute kidney injury after septic shock
Jun WANG ; Yan CUI ; Zhi SONG ; Ling WANG ; Yan GAO
Chinese Journal of Nephrology 2013;29(9):650-654
Objective To analyze the significance of global end-diastolic volume index (GEDVI) in acute kidney injury (AKI) after septic shock.Methods A retrospective analysis of 61 patients was performed.The patients were diagnosed of septic shock in emergency ward of Shenyang Military Hospital from 2012 March to 2013 May and were monitored by pulse indicator continuous cardiac output (PiCCO).The patients were divided into two groups:low GEDVI group (GEDVI < 700 ml/m2,29 cases) and high GEDVI group (GEDVI≥700 ml/m2,32 cases) by evaluating GEDVI of 24 hour after PiCCO.Several physiologic and biochemical indexes were recorded,including the hemodynamic parameters at the beginning and the 24 h of PiCCO monitoring,Scr,BUN,lactic acid,incidence and mortality of AKI,baseline glomerular filtration rate,baseline Scr,APACHE Ⅱ scores,mortality during the period of emergency ward or within 28 d after the diagnosis.Results A total of 26 cases in high GEDVI group (81.3%) were attacked with AKI,while 16 cases in low GEDVI group (55.2%) were attacked with AKI,the incidence of AKI in high GEDVI group was significantly higher than that in the low GEDVI group.A COX regression analysis of mortality was performed between the patients staying at emergency ward and during 28 d after diagnosis.The results indicated that AKI and GEDVI had no relation with patients' death.Therefore,AKI and GEDVI could not be considered as the risk factors for the prognosis.Conclusions High GEDVI can significantly increase the incidence of AKI after septic shock,therefore high GEDVI should be avoided as much as possible in the course of clinical treatment.
2.A misdiagnosed case of hemangioma in the facial nerve.
Yan-ling DOU ; Tao LIU ; Hai-zhi FENG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2010;45(6):516-517
Adult
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Cranial Nerve Neoplasms
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diagnosis
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Diagnostic Errors
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Facial Nerve
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pathology
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Hemangioma
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diagnosis
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Humans
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Male
3.Method of traditional Chinese medicine formula design based on 3D-database pharmacophore search and patent retrieval.
Yu-su HE ; Zhi-yi SUN ; Yan-ling ZHANG
China Journal of Chinese Materia Medica 2014;39(22):4411-4417
By using the pharmacophore model of mineralocorticoid receptor antagonists as a starting point, the experiment stud- ies the method of traditional Chinese medicine formula design for anti-hypertensive. Pharmacophore models were generated by 3D-QSAR pharmacophore (Hypogen) program of the DS3.5, based on the training set composed of 33 mineralocorticoid receptor antagonists. The best pharmacophore model consisted of two Hydrogen-bond acceptors, three Hydrophobic and four excluded volumes. Its correlation coefficient of training set and test set, N, and CAI value were 0.9534, 0.6748, 2.878, and 1.119. According to the database screening, 1700 active compounds from 86 source plant were obtained. Because of lacking of available anti-hypertensive medi cation strategy in traditional theory, this article takes advantage of patent retrieval in world traditional medicine patent database, in order to design drug formula. Finally, two formulae was obtained for antihypertensive.
Antihypertensive Agents
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chemistry
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pharmacology
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Databases, Factual
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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Medicine, Chinese Traditional
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methods
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Mineralocorticoid Receptor Antagonists
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chemistry
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pharmacology
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Models, Molecular
5.Diagnostic Value of Neutrophil CD_(64) in Neonatal Septicemia
yue-mei, LI ; ling, HAO ; yan-zhi, LI
Journal of Applied Clinical Pediatrics 2006;0(22):-
Objective To evaluate the value of peripheral blood neutrophil CD_(64) level for early diagnosis of neonatal septicemia.Methods Thirty-six cases of neonatal septicemia were recruited into the study according to diagnostic criteria for neonatal septicemia:white blood cell count,C-reactive protein(CRP),platelet count,micro-erythrocyte sedimentatio rate(mESR) and blood culture;26 cases of hospitalized neonates with non-infectious diseases were enrolled as controls.The level of peripheral blood neutrophil CD_(64) was measured by flow cytometry.Results The level of peripheral blood neutrophil CD_(64) in septicemia patients were(60.37?22.70)mean fluorescence intensity(MFI),which were significantly higher than that of control group(23.14?5.10)MFI(P
6.Significance of Serum Interleukin-6 in Attack or Stable Stage of Asthmatic Children
zhi-hong, WEN ; mei, HONG ; yan-ling, TAO ; qiong-yan, HU ; li-hua, SU
Journal of Applied Clinical Pediatrics 1994;0(04):-
Objective To explore the role and clinical significance of interleukin-6(IL-6) in children with bronchial asthma.Methods Sera were collected from 29 cases with asthmatic attacks,32 asthmatic children who in stable conditions,and 20 health children.Serum IL-6 concentrations were measured by radioimmunoassay(RIA).Results 1.Asthmatic children appeared significantly higher levels of serum IL-6 during asthmatic attacks as compared to those in stable conditions and healthy ones respectively(P3 years old had significantly higher serum IL6 concentrations than ≤3 years old children in remission.Conclusion IL-6 may participate pathogenesis of asthma,and it may play different biological roles during asthmatic attacksas or stable conditions.
7.Transfection of embryonic stem cells with green fluorescent protein gene and their differentiation into neural cells
Zhi-yan, SHAN ; Jing-ling, SHEN ; Lei, LEI ; Yan-ning, XU ; Lian-hong, JIN
Chinese Journal of Endemiology 2008;27(4):397-400
Objective To establish embryonic stem cells (ESC) that can express green fluorescent protein (CFP) and differentiate them into neurons. It would provide tagging neurons for clinical transplantation to cure neural system diseases. Methods ESC (R1) was transfeeted with a plasmid containing the GFP by electroporation. A transgeuic cell line was obtained after selection with G418. The ESCs were characterized by AKP staining. Monolayer differentiation method was used to induce neural differentiation derived from GFP-ESC and immunofluorescence method was used to identify Tuj1 positive cells. Results There was no significant difference(X2=3.14,P0.05) in transfect rates between liposome and electroporation (65% vs 79%). The AKP staining of GFP-ESC was positive. GFP-ESC could be differentiated into neural cells. Conclusions These results show that ESC expressing GFP has been estabhshed, which can be differemiated into neurons.
8.Effects of plant growth regulator uniconazole on plant morphology and biomass allocation of Salvia miltiorrhiza.
Shu-rui GAO ; Zhi-gang ZHAO ; Jun-ling HOU ; Wen-quan WANG ; Yan SONG ; Bin-bin YAN ; Yan-qing JIN
China Journal of Chinese Materia Medica 2015;40(10):1925-1929
In this study, we use pot experiment to evaluate the effect of plant growth regulator on plant morphology and biomass allocation of Salvia miltiorrhiza. Different concentrations of uniconazole were supplied to S. miltioohiza by means of foliar spray. Height, breadth and stem diameter were measured dynamically, the biomass of leaf, stem, flower and fruit, root biomass and biomass ratio were also examined at the harvest time. Owing to the treatment, plant morphology showed significant changes, the height had been greatly reduced and the breadth decreased largely. Meanwhile, the biomass allocation changed too. The biomass ratio of leaf and stem had been notably reduced while the biomass ratio of root had been increased remarkably. It appears that foliar application of uniconazole during vigorous growth period in S. miltioohiza has dramatic effect on dwarfing plant and improving resistant to lodging. This measure could also be applied to condensed cultivation of S. miltioohiza to increase production.
Biomass
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Plant Growth Regulators
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pharmacology
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Plant Leaves
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drug effects
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growth & development
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Plant Roots
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drug effects
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growth & development
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Plant Stems
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drug effects
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growth & development
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Salvia miltiorrhiza
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drug effects
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growth & development
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Triazoles
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pharmacology
9.Research progress of silk fibroin-based nanoparticulate drug delivery systems
Zhi-yang CHEN ; Jun YE ; Hong-liang WANG ; Yan-fang YANG ; Jia-ling CHENG ; Hang ZHOU ; Yu-ling LIU
Acta Pharmaceutica Sinica 2022;57(6):1792-1800
Silk fibroin is a natural polymer with certain water solubility, structural modification, good biocompatibility and biodegradability, which can be used as a drug delivery carrier material. As a promising drug delivery system, drug-loaded silk fibroin nanoparticles can control drug release, reduce toxicity and improve therapeutic effects. In this paper, the basic characteristics of silk fibroin, the preparation methods of drug-loaded silk fibroin nanoparticles and the application of silk fibroin in nanoparticulate drug delivery systems are reviewed, and on this basis, the further development of drug-loaded silk fibroin nanoparticles is prospected.
10.Study on lipid-lowering traditional Chinese medicines based on pharmacophore technology and patent retrieval.
Xiao-qian HUO ; Yu-su HE ; Lian-sheng QIAO ; Zhi-yi SUN ; Yan-ling ZHANG
China Journal of Chinese Materia Medica 2014;39(24):4839-4843
The combined application of statins that inhibit HMG-CoA reductase and fibrates that activate PPAR-α can produce a better lipid-lowering effect than the simple application, but with stronger adverse reactions at the same time. In the treatment of hyperlipidemia, the combined administration of TCMs and HMG-CoA reductase inhibitor in treating hyperlipidemia shows stable efficacy and less adverse reactions, and provides a new option for the combined application of drugs. In this article, the pharmacophore technology was used to search chemical components of TCMs, trace their source herbs, and determine the potential common TCMs that could activate PPAR-α. Because there is no hyperlipidemia-related medication reference in modern TCM classics, to ensure the high safety and efficacy of all selected TCMs, we selected TCMs that are proved to be combined with statins in the World Traditional/Natural Medicine Patent Database, analyzed corresponding drugs in pharmacophore results based on that, and finally obtained common TCMs that can be applied in PPAR-α and combined with statins. Specifically, the pharmacophore model was based on eight receptor-ligand complexes of PPAR-α. The Receptor-Ligand Pharmacophore Generation module in the DS program was used to build the model, optimize with the Screen Library module, and get the best sub-pharmacophore, which consisted of two hydrogen bond acceptor, three hydrophobic groups and 19 excluded volumes, with the identification effectiveness index value N of 2. 82 and the comprehensive evaluation index CAI value of 1. 84. The model was used to screen the TCMD database, hit 5,235 kinds of chemical components and 1 193 natural animals and plants, and finally determine 62 TCMs. Through patent retrieval, we found 38 TCMs; After comparing with the virtual screening results, we finally got seven TCMs.
Acyl Coenzyme A
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metabolism
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Animals
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Databases, Factual
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Drugs, Chinese Herbal
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chemistry
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pharmacology
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Hydrophobic and Hydrophilic Interactions
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Hydroxymethylglutaryl-CoA Reductase Inhibitors
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chemistry
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pharmacology
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Lipid Metabolism
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drug effects
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Lipids
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blood
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Medicine, Chinese Traditional
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Models, Molecular
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Quantitative Structure-Activity Relationship
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Technology