1.Analysis of the relevant factors of mechanism for telozolomide chemoresistance.
Zeng-feng SUN ; Feng GU ; Wen-liang LI
Chinese Journal of Oncology 2011;33(10):794-796
Antineoplastic Agents, Alkylating
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pharmacology
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Apoptosis
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drug effects
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Benzimidazoles
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pharmacology
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DNA Repair
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Dacarbazine
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analogs & derivatives
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pharmacology
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Drug Resistance, Neoplasm
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drug effects
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physiology
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Humans
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Membrane Proteins
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metabolism
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O(6)-Methylguanine-DNA Methyltransferase
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antagonists & inhibitors
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metabolism
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Poly(ADP-ribose) Polymerase Inhibitors
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Poly(ADP-ribose) Polymerases
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metabolism
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Proto-Oncogene Proteins
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metabolism
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Purines
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pharmacology
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Pyrimidines
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pharmacology
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Tumor Suppressor Protein p53
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metabolism
2.Practice of curriculum integration teaching reform for Traditional Chinese Orthopedics
Zhanpeng ZENG ; Feng HUANG ; Xiaoming LENG ; Wenhua CHEN ; Wen SHU
Chinese Journal of Medical Education Research 2016;15(6):630-632
To improve the quality of teaching, teaching reform and exploration on integration of Ttradition Chinese Orthopedics curriculum has been carried out by orthopedics teaching and research section in our school. Putting Traditional Chinese Orthopedics as the framework of curriculum knowledge, the im-portant and difficult points of Human Anatomy and Clinical Medical Science were combined, which builds the overall teaching mode of normal-disease-cases and get some results. The evaluation of teaching effect shows thatthe integration of Traditional Chinese Orthopedicscourse will enable students to lay a solid the-oretical foundation and improve their ability.
3.UPLC-Q-TOF/MS analysis of phospholipids metabolite profiling in plasma of type 2 diabetes mellitus rat.
Pingyan ZENG ; Yu ZHANG ; Wen RUI ; Xia WU ; Yifan FENG
Acta Pharmaceutica Sinica 2015;50(7):882-6
This study reported the analysis of plasma phospholipid metabolism of the rats and the pathological biomarkers between the type 2 diabetes model control group (MC) and the normal control group (NC). SD rats were randomly divided into 2 groups: NC and MC. To investigate state of plasma metabolite profiling in normal body, type 2 diabetes mellitus (T2DM) model group using UPLC-Q-TOF/MS which was used as analysis tool in this research. The compounds were identified by UPLC-Q-TOF/MS based on MS/MS fragment ions information, element composition in MassLynx 4.1 and the Lipid Maps database. The sign of two groups of samples in specific markers for screening was through a software package in R software (BioMark software). The results show that the pathological markers were mainly phosphatidylcholine (PC) and triglycerides (TG); the 2-acyl PC in the MC group was less more obviously than that in the NC group; high carbon number and high degree of unsaturation of the TG was reduced under the condition of type 2 diabetes. In the state of type 2 diabetes, metabolic changes occurred in rat plasma phospholipids obviously, which had a close relationship with the occurrence and development of T2DM.
4.Study on the Expression of Suppressor of Cytokine Signaling -1 ( SOCS1 ) in the Liver of Septic Mice
Wen PAN ; Yongbiao ZHANG ; Chun ZENG ; Feng ZHAO ; Zhongfu MA
Chinese Journal of Emergency Medicine 2011;20(10):1042-1046
Objective To investigate the change of the content of suppressor of cytokine signaling (SOCS-1) in the liver of septic mice and its working mechanism.Methods Adopted Cecalligation and puncture (CLP) to create models of sepsis and divided randomly adult male BALB/c mice into 8 groups,including normal controlled group,sham-operated group,and the killed groups 2 hours,6 hours,12 hours,24 hours and 48 hours after operation.After extracting the RNA and protein from the liver tissue of the mouse groups,reverse transcription polymerase chain reaction (RT-PCR) was adopted to determine the relative content of SOCS-1 mRNA in the tissue,Western blot was adopted to determine the relative content of protein and the SPSS statistics software was adopted to calculate the correlation.Then observed the pathological change of liver tissues,and detected SOCS-1 protein expression by immunohistochemistry.Results After CLP suergery,the expression of SOCS-1 on gene degree in the liver and the expression of SOCS1 on protein degree in the liver increased rapidly at the 6th hour ( P < 0.05 ),with the former reaching peak ( P < 0.05 ) at the 24th hour and the latter remaining high all the time.There were pathological changes such as fatty degeneration and necrosis in the septic liver tissue,hepatic SOCS-1 protein expression could be detected by immunohistochemistry.Conclusions CLP induced sepsis could lead to the increase of the expression of SOCS1 in the liver.
5.Kxpression of IRP2 mRNA in rat intestine with iron deficiency
yu feng, LIU ; li, ZENG ; wen li, ZUO
Journal of Applied Clinical Pediatrics 2004;0(12):-
0.05).The expres-sions of IRP2 mRNA in mild iron deficiency anemia group and modetate iron deficiency anemia group were significantly higher than those of control group(P0. 05). There was significant difference between recessive iron deficiency and mod-erate iron deficiency anemia group(P
6.Study on clinical characteristics and therapeutic outcomes of 173 patients with Takayasu arteritis
Shu-yun WEN ; Wen ZHANG ; Yan ZHAO ; Xiao-feng ZENG ; Feng-chun ZHANG
Chinese Journal of Rheumatology 2011;15(9):604-607
ObjectiveTo study the clinical features, arterial involvement, therapeutic strategies and outcomes of Takayasu arteritis (TA). MethodsThe clinical symptoms, arterial images, inflammatory parameters and follow-up information of 173 patients with TA were retrospectively studied. Comparisons between groups were performed by t-test. ResultsThere were 136 female and 37 male patients in this study. The mean age at onset was(26±11 ) years. Hypertension, pulse deficit or asymmetrical pulse, and fever were present in 46.6%, 41.1%, 28.7% of patients, respectively. The distribution of arterial involvement were 64.7%in aorta, 9.8% in pulmonary artery, 19.1% in innominate artery, 65.9% in common carotid arteries, 65.3%in the subclavian artery, 36.2% in the renal artery, 12.1% in the vertebral artery, and 5.8% in coeliac axis.Elevated erythrocyte sedimentation rate(ESR) was found in 61.0% patients. Active tuberculosis or history of tuberculosis was implicated in 45 patients(26.0%). Ten patients(5.8%) were hepatitis B virus carriers.Among 105 followed-up patients, 98 patients(94.2%) achieved persistent remission, 17 patients relapsed when corticosteroids were tapered. ConclusionCorticosteroids combined with or steroid alone, supplemented with endovascular intervention procedures or surgical bypass procedures when necessary, can effectively control the clinical symptoms and inflammatory parameters and improve the quality of life of patients.
7.Clinical analysis of patients with Wegener's granulomatosis complicated with pulmonary infection
Ping ZENG ; Guo-hua ZHANG ; Jin-mei SU ; Wen NG ZHA ; Xiao-feng ZENG
Chinese Journal of Rheumatology 2011;15(10):690-692
ObjectiveTo investigate the clinical features and risk factors of patient with Wegener's granulomatosis complicated with pulmonary infection.Methods Patients with Wegener's granulomatosis admitted to our hospital in the past 11 years were retrospectively analyzed.Comparisons between groups were performed by t tests or Fisher test.ResultsPulmonary infection occurred in 27 cases with an incidence rate of 29%.Twenty-six percent of pulmonary infections occurred at the initial diagnosis,and 44% occurred within 6 months,while 30% occurred later than 6 months.The clinical manifestations of pulmonary infection were productive cough (89%),hemoptysis (63%),fever and fatigue (56%),chest pain and pactoralgia (33%).The most common causative pathogen were bacteria(59% ),fungi(37% ),and tubercle bacillus(37% ).Sinus infection(P=0.01),hypoproteinemia(P=0.03),hypoimmunoglobulinemia (P=0.007),and methylprednisolone pulse therapy(P=0.002) were the risk factors for pulmonary infection.ConclusionThe occurrence of Wegener's granulomatosis complicated with pulmonary infection is high within 6 months.The most common clinical manifestation is productive cough.The most common causative pathogens are bacteria,tubercle bacillus and fungi.Sinus infection,hypoproteinemia,hypoimmunoglobulinemia,and methylprednisolone pulse therapy are risk factors of pulmonary infection.
8.UPLC-Q-TOF/MS analysis of phospholipids metabolite profiling in plasma of type 2 diabetes mellitus rat.
Ping-yan ZENG ; Yu ZHANG ; Wen RUI ; Xia WU ; Yi-fan FENG
Acta Pharmaceutica Sinica 2015;50(7):882-886
This study reported the analysis of plasma phospholipid metabolism of the rats and the pathological biomarkers between the type 2 diabetes model control group (MC) and the normal control group (NC). SD rats were randomly divided into 2 groups: NC and MC. To investigate state of plasma metabolite profiling in normal body, type 2 diabetes mellitus (T2DM) model group using UPLC-Q-TOF/MS which was used as analysis tool in this research. The compounds were identified by UPLC-Q-TOF/MS based on MS/MS fragment ions information, element composition in MassLynx 4.1 and the Lipid Maps database. The sign of two groups of samples in specific markers for screening was through a software package in R software (BioMark software). The results show that the pathological markers were mainly phosphatidylcholine (PC) and triglycerides (TG); the 2-acyl PC in the MC group was less more obviously than that in the NC group; high carbon number and high degree of unsaturation of the TG was reduced under the condition of type 2 diabetes. In the state of type 2 diabetes, metabolic changes occurred in rat plasma phospholipids obviously, which had a close relationship with the occurrence and development of T2DM.
Animals
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Biomarkers
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blood
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Chromatography, High Pressure Liquid
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Diabetes Mellitus, Experimental
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blood
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Diabetes Mellitus, Type 2
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blood
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Metabolome
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Phospholipids
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blood
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Rats
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Rats, Sprague-Dawley
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Tandem Mass Spectrometry
9.Study on the quantitative change of anthraquinonoids of Rhei in the preparation of dachengqi.
Yuan-er ZENG ; Feng-lian CHENG ; Liang-wen YU
China Journal of Chinese Materia Medica 2002;27(1):60-62
OBJECTIVETo study the scientific evidence of the traditional preparation of Dachengqi: "Boiling Aurantii Immaturus and Magnoliae Officinalis first, and then adding Rhei to decoct together. Discarding the dregs, adding Natrii Sulfas into the decoction and drinking the upper solution when the Natrii Sulfas has dissolved completely".
METHODThe concentrations of free and combined anthraquinonoids(emodin, rhein, chrysophanol, physcion) in different decoctions were determined with HPLC method respectively.
RESULTWhen Natrii Sulfas, Aurantii Immaturus and Magnolias Officinalis are decocted with Rhei in different schemes, the concentrations of anthraquinonoids were changed regularly.
CONCLUSIONThe scientific evidence of traditional preparation method greatly increased the concentrations of the active components in Dachengqi.
Anthraquinones ; analysis ; Citrus ; chemistry ; Drug Combinations ; Drugs, Chinese Herbal ; chemistry ; Emodin ; analogs & derivatives ; analysis ; Hot Temperature ; Magnolia ; chemistry ; Materia Medica ; chemistry ; Plant Extracts ; chemistry ; Plants, Medicinal ; chemistry ; Rheum ; chemistry ; Sulfates ; Time Factors
10.Optimum harvest study of Gentiana crassicaulis in Ludian.
Yu ZENG ; Xing-Fu CHEN ; Yuan-Feng ZOU ; Jiu-Hua SONG ; Wen-Yu YANG ; Tao CHENG
China Journal of Chinese Materia Medica 2014;39(14):2635-2639
The paper is aimed to study the difference in yield and quality at different harvest time and determine the optimum harvest of planting Gentiana in Ludian traditional harvest period. The authors analyzed the variation in fresh weight, dry weight, dry discount rate, length, diameter, volume and the content of gentiopicroside, loganin acid, alcohol-soluble extract and total ash and made a comprehensive appraisal of yield, appearance quality and intrinsic quality by gray relational distance ideal Comprehensive Evaluation method. The results showed that there is a big difference in yield and quality both 2-year-old and 3-year-old Gentiana harvested in traditional harvest period and the comprehensive evaluation more better when harvested more later. It can be seen, Gentiana harvested the later had a better yield and quality in Ludian traditional harvest period. The harvest of Gentiana can be appropriate delayed depending on the particular circumstances of production.
Agriculture
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methods
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China
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Gentiana
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anatomy & histology
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growth & development
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metabolism
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Iridoid Glucosides
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metabolism
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Organ Size
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Quality Control
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Time Factors