1.New strategies to overcome imatinib resistance in treatment for chronic myelocytic leukemia.
Chinese Journal of Oncology 2006;28(8):561-563
Animals
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Antineoplastic Agents
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therapeutic use
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Benzamides
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Dasatinib
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Drug Resistance, Neoplasm
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drug effects
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Fusion Proteins, bcr-abl
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genetics
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metabolism
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Humans
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Imatinib Mesylate
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive
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drug therapy
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genetics
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metabolism
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Piperazines
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therapeutic use
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Protein-Tyrosine Kinases
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antagonists & inhibitors
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Pyrimidines
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pharmacology
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therapeutic use
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Thiazoles
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pharmacology
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therapeutic use
2.Balloon dilatation of intrahepatic biliary strictures in liver transplantation
Guang CHEN ; Kai CHEN ; Xiuying LIU ; Ji QI
Chinese Journal of Radiology 2001;0(02):-
Objective To evaluate the efficacy of balloon dilatation in the treatment of intrahepatic biliary strictures in patients with liver transplantation. Methods Of the 100 patients with liver transplantation, 16 patients had intrahepatic biliary strictures and received balloon dilatation treatment. Results Initial technical balloon dilatation was successful in 14 cases but failed in 2 cases. There were no procedure-related complications. 4 restenosis occurred and they were treated with repeated balloon dilatation treatment. Conclusion Balloon dilatation represented an effective and relatively safe treatment for biliary stricture in liver transplant recipients. For restenosis, balloon dilatation was also an effective treatment.
3.Design and Quality Evaluation of Dihydromyricetin in Self-emulsifying Drug Delivery System
Na QI ; Guang LIU ; Chunyan LIU ; Xu CHEN
Herald of Medicine 2014;(7):940-944
Objective To design and optimize the self-emulsifying drug delivery system ( SEDDS) of dihydromyricetin, and evaluate its quality in vitro. Methods The solubility of dihydromyricetin was measured in different oil phases,emulsifier and co-emulsifier solution. The best prescription was selected by comprehensively evaluating emulsification speed,particle size and drug loading via using the ternary phase diagram and orthogonal design test. Results The optimized formula of the self-emulsifying drug delivery system was oleic acidTween-80span-80N-butanol =1514714. Conclusion The optimized dihydromyricetin self-emulsifying drug delivery system significantly improves the solubility of dihydromyricetin, increases the physical and chemical properties of the formulation,and raises the dissolution of dihydromyricetin in artificial gastric fluid.
4.Progress in clinical research of asteroid hyalosis
Xiao-Xue, LIU ; Lei, GAO ; Ning, CHEN ; Guang-Sen, LIU
International Eye Science 2017;17(8):1481-1484
Asteroid Hyalosis (AH) is a common clinical disease,which has been considered a benign disorder as it rarely impairs visual acuity.It was often discovered when the patient was treated for other eye diseases.The mechanism was unclear.Its characteristic B-ultrasound property makes the B-ultrasound a very helpful diagnostic technique.In the case of the patients with other fundus diseases associated with AH,optical coherence tomography (OCT) and fluorescein angiography (FA) may be used to reduce the interference from asteroid bodies,therefore improve the fundus visibility.Recent studies have shown that AH can incorporate with many other eye diseases.For example,in patients with cataracts,asteroid hyalosis can cause surface calcification of silicone plate intraocular lenses,which in most cases may lead to the need for explantation of the calcified intraocular lenses.The efficacy of pars plana vitrectomy (PPV),the removal of some,or all,of the eye`s vitreous humor for AH remains controversial.In this paper,we provide a review of the recent literature on AH disease: the etiology,diagnosis and treatment.We hope to thus improve the awareness and outcomes of AH disease.
6.Case of primary facial spasm.
Qiong LIU ; Zong-Bao YANG ; Chen-Guang WANG
Chinese Acupuncture & Moxibustion 2014;34(12):1160-1160
7.Case of primary hyperhidrosis.
Qiong LIU ; Zong-bao YANG ; Chen-guang WANG
Chinese Acupuncture & Moxibustion 2014;34(10):1040-1040
8.Observation of Histomorphology and Biomechanics on Tendons Preserved by Vitrification
Wenliang WANG ; Yingjie LIU ; Hualiang ZHANG ; Guang CHEN
Chinese Medical Equipment Journal 2004;0(08):-
Objective To investigate the effect of vitrification on the biomechanics of tendon tissue in rabbit.Methods Two frozen methods were adopted.The first group was treated with Cryoprotective Agent,which was composed of 18.64%DMSO(V/V),13.37% Acetamide(V/V),9.17% 1,2 Propylene glyco(V/V),0.10mmol/LTrehalose and 10% Calf serum.The tendon tissue with three steps of preliminary treatment,preserved in Cryoprotective Agen was conserved in liquid nitrogen(-196℃)for 14 days;The second group treated with 15% DMSO and 10% Calf serum served as control group.Transmission electron microscope was used to observe the Histiooytic shape of tendon.Each group was performed with tendon tensile test,which could detect maximum load,the maximum shifting quantity and Young's Elastic Modulus.Results There was no significant damage in the tissue's micromechanism of vitrified tendon.But in cryopreservation group,the tissue's micromechanism was apparently damaged.There was no significant difference between test group and control group in maximum load(P=0.256).The same was the maximum shifting quantity(P=0.065).There was significant difference between test group and control group in Young's Elastic Modulus(P=0.006).Conclusion The damage of vitrification to tendon is less than that of profound hypothermia preservion,especially to tendon's corpuscular shape,but there is no significant difference between test group and control group in tendon's biomechanics.
9.Ischemic-type biliary lesions without hepatic artery occlusion after liver transplantation: early diagnosis of cholangiography
Guang CHEN ; Yingxiu LIU ; Jian WANG ; Ji QI
Chinese Journal of Radiology 2008;42(8):835-839
Objective To evaluate the value of cholangiography for early diagnosis of ischemic-type biliary lasions(ITBL) after liver transplantation. Methods Two hundred and fifty-three patients with liver transplantaion between Jan 2004 and Oct 2006 were recruited. Initial cholangiography was compared with terminal cholangiography to evaluate the value of initial cholangiography of ITBL. The t test, Chi-square test, sum rank test were used for statistics. Results Based on initial cholangiography, 189 patients were diagnosed with normal appearance, while 64 patients were diagnosed with abnormal appearance. The abnormal initial cholangiography appearances included poor filling in 33 patients and irregularity in 31 patients. Based on terminal cholangiogruphy, 199 patients were diagnosed with normal appearance and 54 patients with ITBL In patients with abnormal initial cholangiography, ITBL was occurred in 39 of 64 patients including 10 of 33 poor frlling patients and 29 of 31 irregularity patients. In patients with normal initial appearance, ITBL was only occurred in 15 of 189 patients. The abnormal initial cholangiography was associated with ITBL significantly (X2 = 79.999, P = 0.000, r = 0.490). Initial cholangiography had an overall sensitivity of 72.22%, and specificity of 87.44%, with positive and negative predictive values of 60.94% and 92.06%, respectively. The abnormal initial cholangiogruphy was a risk factor of ITBL by logistic regression analyses(OR=15.193, P=0.000). Conclusion The abnormal initial cholangiography is associated with ITBL Initial cholangiography, especially minimal irregular of intrabepatic biliary tract, is a sensitive and specific method for the detection of ITBL after liver transplantation.
10.Protective Effects of Cordyceps Sinensis from Different Origins on Acute Renal Injury Induced by Gentami-cin Sulphate
Wei CHEN ; Xueyuan ZHANG ; Yuancai LIU ; Guang DU ; Xia GUO
China Pharmacist 2015;18(12):2042-2045
Objective:To investigate the protective effects of Cordyceps sinensis from Tibet and Qinghai on acute renal injury in-duced by gentamicin sulphate ( GM) . Methods:The rat model of acute renal injury induced by GM was established. The biochemical indicators including blood urea nitrogen ( BUN) and serum creatinine ( Scr) in serum and NAG enzyme and urine total protein in urine were detected. HE staining was used to observe the pathologic changes in kidney. Results:Compared with those in the model group, the levels of BUN and Scr in serum and NAG enzyme and urine total protein in urine were significantly reduced in the Cordyceps sinen-sis groups, and kidney cells necrosis was improved in the Cordyceps sinensis groups at low, medium and high dose (P<0. 05), how-ever, the difference between the Cordyceps sinensis groups with different habitats were not significant (P >0.05). Conclusion:Cordyceps sinensis from Qinghai and Tibet both have protective effect on acute kidney injury induced by GM in rats, and the difference between them is not remarkable.