1.Effect of mycophenolic acid on the rat mesangial cell proliferation and on TGF-? and CTGF expressions induced by high glucose
Chinese Journal of Diabetes 1994;0(01):-
Objective To examine the effect of mycophenolic acid(MPA)on mesangial cell(MC)proliferation and on expressions of transforming growth factor-?(TGF-?)and connective tissue growth factor(CTGF)induced by high glucose.Methods The proliferation activity of mesangial cells incubated for 24h,48h and 72h in different concentrations of MPA was observed by MTT assay.The expressions of TGF-? and CTGF were measured by Western blot.Results MPA inhibited the MC proliferation and expressions of TGF-? and CTGF induced by high glucose.Conclusions MPA decreases the release of extracellular matrix by inhibiting the MC proliferation and expressions of TGF-? and CTGF,and subsequently slows the development of glomerulosclerosis in diabetic nephropathy.
2.Assessment of efficacy of narrow-band ultraviolet B for the treatment of early-stage mycosis fungoides
Chinese Journal of Dermatology 2015;48(4):275-277
Objective To evaluate the efficacy of narrow-band ultraviolet B (NB-UVB) for the treatment of early-stage mycosis fungoides (MF).Methods A retrospective study was performed on 98 patients with early-stage MF treated with NB-UVB from January 2003 to December 2013.The rate of and time to recurrence of MF were assessed,and long-term side effects were evaluated in these patients.Results Among 52 patients achieving complete remission,the median number of sessions of NB-UVB radiation was 30 (range,18-87),the median cumulative radiation dose was 24.16 J/cm2 (range,9.11-108.86 J/cm2),and the median follow-up duration was 41 months (range,11-90 months).Relapse occurred in 14 (26.9%) patients with the median time to recurrence being 8.2 months (range,3-60 months).The patients suffering from relapse achieved complete remission after treatment with NB-UVB again.Adverse reactions mainly included skin erythema and itching at the early stage of radiation,as well as temporary pigmentation after radiation.Cutaneous carcinoma occurred in none of these patients during 11-90 months of follow-up.Conclusions NB-UVB phototherapy appeared to be effective for the treatment of early-stage MF,and no cutaneous carcinoma occurred in these patients during the follow-up.Although MF may relapse in some cases,repeated NB-UVB phototherapy is still effective.
3.Influence of the management of family-doctor responsibility system on drug utilization and compliance of hypertensive patients
Chinese Journal of Practical Nursing 2013;29(28):13-16
Objective To discuss the influence of the management of family-doctor responsibility system on drug utilization and compliance of hypertensive patients.Methods 1039 primary hypertension patients in Zhenhai Lianhua Community who were under the management of the residents electronic health files in June 2012,were implemented with the latest family-doctor responsibility system for eight months.The on-site questionnaire survey and electronic health management platform were carried out to analyze the drug utilization and treatment compliance of hypertensive patients.Results The proportion of taking medicine treatment among 1039 patients with essential hypertension reached 85.2%,including 56.3% patients who took one kind of drug,35.4% patients who took two kinds of drugs and 8.3% patients who took at least three kinds of drugs.The most commonly used drugs were Amlodipine Besylate,Felodipine,Irbesartan and Hydrochlorothiazide tablets,Irbesartan,Levamlodipine Besylate tablets,Metoprolol Tartrate tablets and etc.The rate of patient compliance was 65.5%.After comparing the compliance of any two among three kinds of drug groups,the comparison of compliance between patients who took one kind,two or three kinds of drugs showed statistical significance.The comparison of drug types and compliance showed that compliance with compound preparation was statistically different from compliance with ARB,calcium antagonists,sympatholytic agent,diuretics.The educational level was also related to the compliance.Conclusions After the implementation of the family-doctor responsible management,the treatment rate and compliance rate are high,and the patients with hypertension in community still give priority to long-acting drugs.
4.Effect of mycophenolic acid on the rat mesangial cell proliferation and on TGF-β and CTGF expressions induced by high glucose
Chinese Journal of Diabetes 2008;16(1):18-20
Objective To examine the effect of mycophenolic acid(MPA)on mesangial cell(MC)proliferation and on expressions of transforming growth factor-β(TGF-β)and connective tissue growth factor(CTGF)induced by high glucose.Methods The proliferation activity of mesangial cells incubated for 24h,48h and 72h in different concentrations of MPA was observed by MTT assay.The expressions of TGF-β and CTGF were measured by Western blot.Results MPA inhibited the MC proliferation and expressions of TGF-β and CTGF induced by high glucose.Conclusions MPA decreases the release of extracellular matrix by inhibiting the MC proliferation and expressions of TGF-β and CTGF,and subsequently slows the development of glomerulosclerosis in diabetic nephropathy.
5.Developmental competence of pig oocytes maturation in different culture mediums
Huahu YE ; Hong WEI ; Junying CHEN ;
Journal of Third Military Medical University 1988;0(06):-
Objective To optimize systems of pig embryo in vitro production. Methods Pig oocytes were matured and fertilized in vitro in different culture mediums. Maturation rate and cleavage rate were analyzed. Results Gonadotropin induced maturation of pig oocytes in vitro , and improved the frequence of oocytes developed into M Ⅱ. The highest maturation and cleavage rates, present in medium with 15 IU/ml FSH+30 IU/ml LH, were 62% and 15% respectively. There was no difference in maturation rates in M199 and NCSU 23(48.2% vs 56.9%). However, difference in cleavage rate was observed in these two mediums(15.7% vs 36%, P
6.Study on the reversion of drug resistance in clinical isolates of E. Coli by EGS technique
Qiquan WAN ; Junying QI ; Ru CHEN
Chinese Journal of Infectious Diseases 1999;0(01):-
Objective To explore the potential of converting the chloramphenicol resistant clinical E. Coli isolates to chloramphenicol sensitive ones by employing external guide sequence(EGS) technique in vitro. Methods Recombinant plasmids with EGScat 1+2 and tetracycline resistant gene, named PAlterl EGScat1+2, was constructed. Routine Cacl 2 method was used to introduce recombinant plasmid into the chloramphenicol resistant clinical isolates E. Coli 4758. Colony PCR was used to test and A600 was used to detect growth rates in liquid and solid culture of various concentrations of chloramphenicol. Results The chloramphenicol resistant clinical isolates E. Coli 4758 grew well in chloramphenicol(35 ?g/ml, 70 ?g/ml, 105 ?g/ml, 170 ?g/ml) plates whereas the transformants tE4758 with PAlter1 EGScat 1+2 failed to grow in these concentrations, which indicated its resistance to the chloramphenicol was reversed. Conclusions EGS molecules are able to convert the drug resistance in clinical E. Coli isolates in vitro.
7.Characteristics of acid reflux in Barrett's esophagus.
Junying, XU ; Jie, CHEN ; Xiaohua, HOU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2002;22(3):235-6, 264
To determine the relationship between Barrett's esophagus (BE) and features of gastroesophageal acid reflux, 24 h esophageal pH monitoring was performed in 90 patients. The patients were divided into 3 groups: 31 subjects with BE, 21 with mild esophagitis and 38 with severe esophagitis. The following parameters were evaluated: the percentage time of pH < 4; the number of reflux episodes over 5 min; the duration of longest episodes and DeMeester score over total period and the auterior three parameters in erect and supine position. All these parameters in BE were significantly different from those with mild esophagitis (P < 0.01) and not significantly different from those with severe esophagitis (P > 0.05). During supine position all the above parameters in BE were significantly different from those with reflux esophagitis (P < 0.05). It is concluded that the quantity of acid reflux is not an important factor in development of BE in gastroesophageal reflux (GER), and the acid reflux in supine position might be important in development of BE in GER.
Barrett Esophagus/etiology
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Barrett Esophagus/*physiopathology
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Esophagitis, Peptic/etiology
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Gastroesophageal Reflux/*complications
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Hydrogen-Ion Concentration
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Supine Position
8.Effects of mycophenolic acid on high glucose-induced expression of TGF-beta and CTGF in mesangial cells.
Yongman, LÜ ; Junying, CHEN ; Jufang, SHAO
Journal of Huazhong University of Science and Technology (Medical Sciences) 2006;26(3):292-3, 304
The effects of mycophenolic acid (MPA) on high glucose-induced expression of transforming growth factor-beta (TGF-beta) and connective tissue growth factor (CTGF) in mesangial cells (MC) were investigated. Rat MC were cultured in the presence of different concentrations of MPA (1.0 and 10.0 micromol/L) or MPA plus high glucose for 72 h. The expression of TGF-beta and CTGF was detected by Western blot. The results showed that high glucose could induce the expression of TGF-beta and CTGF in MC, but MPA could inhibit this effects. MPA did not influence the expression of TGF-beta and CTGF in normal glucose. It was concluded that MPA might prevent the progression of diabetic nephropathy by inhibiting the expression of TGF-beta and CTGF in MC.
9.BIODEGRADABLE POLY (D,L-LACTIDE-CO-GLYCOLIC ACID) MICROSPHERESUSED AS ADJUVANT IN DNA IMMUNIZATION OF HEPATITIS B VIRUS S GENE
Fei GONG ; Shude JIANG ; Weidong LI ; Junying CHEN
Microbiology 2001;28(2):68-72
Study the immunological adjuvant function of biodegradable microspheres for DNA immunization. Empty poly(D,L-lactide-co-glycolic acid) microspheres were prepared using the water-inoil-in-water(w-o-w)technique; A plasmid DNA pRc-CMV encoding hepatitis B virus S antigen was constructed;The mixture of the microspheres and the plasmid DNA was prepared by incubation method. The mixture was administered to Balb/c mice by intramuscular injection. Result: The high antibody titer (1:1600) of intramuscular injection of the mixture of microspheres and the plasmid DNA was obtained, similar to that of intramuscular injection of the mixture of AL(OH)3 and hepatitis B virus S antigen; while intramuscular injection the plasmid DNA elicited no serum antibody respones. Conclusion: biodegradable microspheres may be used as an good adjuvant for DNA immunization.
10.Supercritical fluid CO_2 extraction of urosolic acid from Cornus officinalis
Zhihui HAN ; Junying CHEN ; Jingwei ZHANG ; Guoji LIU
Chinese Traditional and Herbal Drugs 1994;0(08):-
Objective To study the technology of supercritical fluid CO_2 extraction(SFE CO_2) on urosolic acid from Cornus officinalis.Methods The effects of pressure,temperature,time,CO_2 flow rate types,and volume of entrainer on the urosolic acid extracts were studied. The optium conditions for SFE CO_2 was determined.The technology of SFE CO_2 was compared with that of traditional solvent extraction.Results The optium extraction conditions were as follows: pressure 35.0 MPa,temperature 318 K,absolute ethyl alcohol entrainer,content 4%,time 3 h and flow rate of CO_2 8 kg/h.Conclusion SFE CO_2 excels the traditional solvent extraction in yield,safety and efficiency.