1.Influence of metformin on the protein expression of IRS-1 in target tissues or OLETF rats
Dingqiong PENG ; Yan GAO ; Yu CHEN
Chinese Journal of Diabetes 2000;0(06):-
Objective To investigate the molecular mechanism of metformin. Methods The changes of protein expression of IRS-1 in liver, skeletal muscle and adipose tissues after treatment with metformin for OLETF rats, a model of spontaneous type 2 diabetes mellitus, were measured by Western blot analysis, and compared with those before treatment. Results 22 weeks after the treatment with metformin, the protein expression of IRS-1 was significantly increased in liver (P0. 05) ;and the protein expression of IRS-1 in adipose tissue was significantly decreased (P
2.Effects of antisense-CXCR4 on the VEGF-C mRNA expression in colon cancer cell
Yiliang PENG ; Houjie LIANG ; Yu CHEN
Medical Journal of Chinese People's Liberation Army 1981;0(04):-
Objective To investigate the effects of transfection of chemokine receptor CXCR4 antisense-RNA on the functional expression of VEGF-C mRNA and the invasive ability of colon cell line HT-29 in vitro.Methods PCR primers were designed according to the coding sequence of CXCR4 gene.EcoR Ⅰ and BamH Ⅰ recognition sequences and cutting sites were added to the 5' end of the antisense primer.The purified PCR fragment was retro-inserted into the cloning site of eukaryotic expression vector pcDNA3.1(+).The pcDNA3.1(+)for CXCR4 antisense-RNA was transfected into colon cancer HT-29 cells by liposome transfection.The expression of VEGF-C mRNA was detected by RT-PCR.The expression of CXCR4 protein was determined by Western blot.At the same time,cell growth kinetics was assessed by MTT assay,and in vitro invasive ability was assessed with Boyden chamber.Results CXCR4 antisense-RNA recombinant was successfully constructed.The expression of VEGF-C mRNA in antisense-CXCR4 transfected(HT-29tran)group decreased by 54.2%,while the expression of VEGF-C mRNA in vacant-transfected(HT-29KZ)group only decreased by 9.4% campared with non-transfected(HT-29)group.The difference between the two groups mentioned above was remarkable(P
3.The Influence of Unilateral and Bilateral Amplification on the Effect of Hearing Aid Evaluation
Yu CHEN ; Yue WANG ; Wei WANG ; Taisheng CHEN ; Peng LIN
Journal of Audiology and Speech Pathology 2014;(2):184-186
Objective To study the influence of unilateral and bilateral amplification on the effect of hearing aid evaluation .Methods Using the subjective method that International Outcome Inventory for Hearing Aids (IOI-HA) and objective method that medium acoustic intensity (65 dB SPL) word recognition score(WRS) to evaluate the effect of unilateral and bilateral hearing aid fitting of middle -aged severe sensorneural hearing loss .Results Hearing aid were used for severe sensorneural hearing loss and the improvement of monosyllables and sentences in quiet and noise test of unilateral were 35 .73% ,43 .15% ,43 .23% ;the improvement of monosyllables and sentences in quiet and noise test of bilateral were 37 .90% ,51 .33% ,54 .86% .The WRS of bilateral was higher than unilater-al .The score of IOI-HA was 15~37 ,meaning patients with severe sensorneural hearing loss were satisfied with hearing aid ,and there was no statistical significance between unilateral and bilateral fitting .Conclusion The bilat-eral hearing aid fitting was better than unilateral .Binaural hearing loss are recommended to fit bilaleral hearing aids .
4.A Comparative Study of Latanoprost and Timolol in Treating Patients With Glaucoma or Ocular Hypertension
Keming YU ; Dawei PENG ; Chulong HUANG ; Shaozhen LI ; Xiuqi CHEN
China Pharmacy 2001;12(6):361-362
OBJECTIVE: To confirm the efficacy and safety of latanoprost in treating glaucoma.METHODS: In a double blind, randomized control clinical trial, we compared the efficacy and adverse drug reactions of once daily topically applied 0.005% latanoprost with those of twice daily 0.5% timolol for 12 weeks in patients with open angle glaucoma or ocular hypertension.RESULTS: The study included 46 patients(22 pts.randomized to latanoprost treatment, 24 pts.to timolol) , 46 patients remained at the end of the study.Comparing with baseline diurnal intraocular pressure(IOP) , the IOP reduction(mean±standard deviation) achieved with latanoprost(7.86±2.39) mmHg, (31.1%, P<0.001),and timolol(6.24±2.58)mmHg (24.9%,P<0.001),the difference between the two groups(1.62mmHg) being significant(P<0.01). Two patients treated with latanoprost had foreign body sensation. No other ocular and systemic adverse reactions related to the two drugs were found. CONCLUSION: The results of this study demonstrated that 0.005% latanoprost applied once daily is well tolerated and more effective in reducing IOP than 0.5% timolol applied twice daily. Thus, latanoprost has the potential for becoming one of the ideal antiglaucoma drugs.
5.Expression of Nogo-A mRNA and Nogo-A protein in brain tissue of neonatal mice with ischemic-hypoxic brain damage.
Hua WANG ; Yu-jia YAO ; Da-peng CHEN
Chinese Journal of Pediatrics 2006;44(10):792-793
Animals
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Animals, Newborn
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Blotting, Western
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Brain
;
metabolism
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Disease Models, Animal
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Hypoxia, Brain
;
metabolism
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Immunohistochemistry
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Myelin Proteins
;
genetics
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immunology
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metabolism
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Nogo Proteins
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RNA, Messenger
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metabolism
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Rats
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Rats, Sprague-Dawley
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Reverse Transcriptase Polymerase Chain Reaction
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Time Factors
7.Expression of cytokines Th1 and Th2 in patients with esophageal squamous cell carcinoma.
Peng-Cheng CHEN ; Jian-Guo FENG ; Yu-Tian LING
Chinese Journal of Oncology 2007;29(11):850-851
Adult
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Aged
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Aged, 80 and over
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Carcinoma, Squamous Cell
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immunology
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pathology
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Cytokines
;
blood
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Esophageal Neoplasms
;
immunology
;
pathology
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Female
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Humans
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Interferon-gamma
;
blood
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Interleukin-10
;
blood
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Interleukin-12
;
blood
;
Interleukin-4
;
blood
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Interleukin-5
;
blood
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Lymphatic Metastasis
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Male
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Middle Aged
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Th1 Cells
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immunology
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Th2 Cells
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immunology
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Tumor Necrosis Factor-alpha
;
blood
8.Recurrent fungus infections tricuspid endocarditis: a case report.
Hai-qiang HU ; Si-yu CAI ; Peng CHEN
Chinese Journal of Cardiology 2007;35(1):77-77
Adult
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Endocarditis
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microbiology
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Humans
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Male
;
Mycoses
;
Recurrence
9.Analysis of the early postoperative cognitive function in the patients with peritoneal surface malignancies after cytoreductive surgery and hyperthermic intra-peritoneal chemotherapy(CRS-HIPEC)
Hui YU ; Zongze ZHANG ; Yanlin WANG ; Chang CHEN ; Mian PENG
The Journal of Clinical Anesthesiology 2016;32(7):638-641
Objective To investigate the risk factors for early postoperative cognitive function in the patients with peritoneal surface malignancies after cytoreductive surgery and hyperthermic intra-peritoneal chemotherapy(CRS-HIPEC).Methods Fifty-one patients(21 men and 30 women), ranged from 25 to 65 years,42-80 kg,ASA Ⅰ-Ⅲ,undergoing CRS-HIPEC under combined intrave-nous-inhalational anesthesia,were studied.Patients were assigned into postoperative cognitive dys-function (POCD)group or non-POCD group according to their performances of visual verbal learning test,concept shifting task,letter-digit coding test and stroop color-word test 1 day before operation and 7 days after operation.Years of education,medical history,duration of operation,intraoperative blood loss,frequency of cardiovascular events,amount of fluid infused per hour and VAS scores were recorded.Venous blood samples were taken at five time points:before surgery(T0 ),30 minutes after the beginning of the procedure(T1 ),30 minutes after the beginning of HIPEC(T2 ),at the end of the surgery(T3 )and 24 hours after the surgery(T4 ),to determine the concentration of serum amyloid A (SAA).pH,PaCO 2, Hb,blood glucose were recorded at T0-T2.Then the data was statistically analyzed.Results According to the diagnostic criteria,twenty patients developed POCD 20 (39.2%). There were significant differences between POCD and non-POCD groups on age,gender, pre-operative complications and the origin of tumor(P <0.05).The concentration of SAA increased from T2 and reached the peak at T4 ,and SAA concentration for patients in POCD group was higher than that for patients in non-POCD group(P <0.05).Compared with non-POCD group,the levels of blood glucose were significantly increased in POCD group at T2 (P <0.05).Conclusion CRS-HIPEC resul-ted in exaggerated and prolonged inflammatory response.Advanced age,female,diabetes,hyperten-sion,peritoneal carcinomatosis from ovarian cancer and endometrial cancer are associated with early POCD in the patients undergoing CRS-HIPEC.
10.Comparative study of aescuven forte tablets oral at preoperative or postoperative in the prevention of procedure for prolapse and hemorrhoids complications
Jinli YU ; Hongyan DUAN ; Peng HAO ; Zhongjin CHEN
Clinical Medicine of China 2015;31(9):835-837
Objective To evaluate the effect of preoperative aescuven forte tablets in the prevention of procedure for prolapse and hemorrhoids(PPH) complications.Methods One hundred and seventy-nine patients underwent PPH in the Erlonglu Hospital of Beijing from June 2013 to June 2014 were divided into postoperative aescuven forte tablets group (n =90) and preoperative aescuven forte tablets group (n =89).The postoperative pain,bleeding,retention of urine,anal swelling,length of stay in hospital and recurrence were compared between the two groups.Results The incidence of postoperative pain,bleeding,retention of urine,anal swelling were lower than in the preoperative aescuven forte tablets group (pain after operations rate:7.9% (7/89) vs.20.0% (18/90),x2 =5.484,P< 0.05;Wound bleeding:0 vs.6.7 % (6/90),P =0.026;retention of urine:9.0% (8/89) vs.20.0%(18/90),x2 =4.370,P<0.05;anal swelling:1.1%(1/89) vs.8.9%(8/90),P=0.035),and length of stay in hospital was shorter(11.9±3.9) d vs.(13.3 ±5.0) d,t=3.134,P<0.05).There was no recurrence both of two groups follow up for more than 2 months.Conclusion Preoperative oral aescuven forte tablets of 2 h can reduce PPH complications and worthy of popularization and application.