1.Analysis of the relationship between infants with asthma and food allergens
Chinese Journal of Primary Medicine and Pharmacy 2012;19(2):181-182
Objective To explore the correlation of infants with asthma and food allergens,to povide the basis for early prevent the development of asthma.Methods The U-niCAP-100 automatic detection system was used to check the common food allergens in serum of 79 infants with asthma and 68 healthy children of the same age.Results The positive rate of serum total IgE in the group of asthma was 64.6%,significantly higher than the healthy group (45.6%)(P<0.01).The positive rate of serum SIgE was showed that:the mainly food allergens of the asthma group was milk(63.2%)and whole egg(26.3%)which were,significantly higher than the healthy group(36.8%,14.7%)(P < 0.01 and P < 0.05).Conclusion Asthma of infant had close relation with the food allergens.Early avoid food allergens had an important role in preventing the development in low-age children with asthma.
2.Mast cells and cardiovascular disease.
Chinese Journal of Pediatrics 2010;48(10):794-797
3.Mechanism of protein kinase C? mediated multidrug resistance in human glioma cell line SHG-44
Jin CHEN ; Yuan CHENG ; Jingyuan WAN
Journal of Third Military Medical University 1983;0(04):-
Objective To understand the molecular mechanism by which protein kinase C? mediates multidrug resistance of human glioma cell line SHG-44.Methods SHG-44/ADM was constructed by stepwise concentration increasing method and intermittent administration method.SHG-44/WT and SHG-44/ADM were treated by PKC? reactivator PMA and PKC? inhibitor staurosporine,then the expressions of PKC? and MDR-1 were detected by Western blotting,the PKC? activity was assayed by kinase,and ADM accumulation was determined by fluorescence spectrometry.Results PMA increased PKC? activity and MDR-1 protein expression and activity.Staurosporine was able to block PKC? activity and decrease MDR-1 expression and activity.Conclusion Multidrug resistance in human glioma cells is mediated by PKC? via MDR-1 pathway.
4.The medial displacement calcaneal osteotomy with reconstruction of posterior tibial tendon insertion on navicular for the flatfoot related with accessory navicular
Cheng CHEN ; Kanglai TANG ; Chao HU ; Junpeng LIU ; Chengsong YUAN
Chinese Journal of Orthopaedics 2013;(4):377-382
Objective To investigate the clinical outcomes of the medial displacement calcaneal osteotomy with reconstruction of posterior tibial tendon insertion on navicular for the flatfoot related with accessory navicular.Methods From March 2009 to October 2011,13 patients (16 feet) with flatfoot related with accessory navicular received treatment by the medial displacement calcaneal osteotomy with reconstruction of posterior tibial tendon insertion on navicular.There were 4 males and 9 females,with an average age of 41.3 years (range,18-64 years).All patients had obvious valgus calcaneus,the angle of which was 11.3°± 1.4°.According to AOFAS ankle-hindfoot scores,the arch height,calcaneus inclination angle (CI),talocalcaneal angle (TC),talar first metatarsal angle (TMT) on the lateral weight-bearing radiograph of foot,and the talocalcaneal angle (TC),talar first metatarsal angle (TMT) on the AP view of the weight-bearing radiograph of foot,and the heel valgus alignment on axial radiographs of the hindfoot were measured on the X-ray film.Results All patients were followed up for 12 to 31 months,with the average of 16.8 months.Eleven patients (13 feet) felt no pain 6 months after operation,while 2(3 feet) felt pain after long walking.There was no complication,including infection,nerve injury,un-union,and so on.The average AOFAS ankle-hindfoot score improved from 56.4-±6.4 preoperatively to 88.1±2.8 at the last follow-up.Radio graphically,all parameters were statistically significant between pre-operation and the last follow-up,including the arch height,CI,TC,TMT modifying from 3.8±0.3 mm,9.5°±1.1°,47.3°±2.5°,17.6°±1.6° to 12.0±1.1 mm,20.1°±1.5°,32.3°±2.5°,6.8°±1.0° respectively on the lateral weight-bearing view; TC improving from 39.5°±2.3° to 26.2°±2.0°and TMT improving from 15.2°±1.7° to 6.3°±1.0° on the AP weight-bearing view.Conclusion The medial displacement calcaneal osteotomy with reconstruction of posterior tibial tendon insertion on navicular is a good choice for the treatment of flatfoot related with accessory navicular with excellent clinical outcomes.
5.Metformin attenuates behavioral impairment in a rat model of dementia induced by high fat diet
Xin YUAN ; Yupin CHEN ; Danna GAN ; Yufang CHENG ; Jiangping XU
Military Medical Sciences 2014;(1):17-21
Objective To investigate the effect of metformin ( MET) on learning and memory behavior in HFD-induced insulin-resistant rats.Methods Thirty male Sprague-Dawley (SD) rats were divided into three groups to receive either a normal diet (Control group) or a high-fat diet (two HFD groups) for four weeks(HFD+MET).From two HFD groups, one received vehicle ( HFD group ) alone and other MET administration ( HFD+MET group ) .MET was dissolved in drinking water at a concentration of 2 mg/ml.All rats were subjected to the glucose tolerance test ( GTT) and behavioral tests using the elevated plus maze ( EPM ) , open field test ( OFT ) , Morris water maze ( MWM ) test and the step-through passive avoidance test ( PA) after four-week consecutive MET treatment .Blood samples were collected for determination of glucose. Results MET attenuated the glucose resistant condition and improved cognitive behavior in MWM and PA, vs the HFD group. Conclusion MET can improve the impaired learning and memory behavior in HFD-induced insulin-resistant rats.
6.The expression of p53 in breast cancer and its clinical significance
Maoshan CHEN ; Jie YUAN ; Hong CHENG ; Guanglun YANG
Chongqing Medicine 2014;(9):1069-1071
Objective To investigate the expression of p53 in breast cancer and its clinical significance .Methods The clinical pathological data of 214 cases of breast cancer patients were collected ,and retrospective analyzed of p53 protein expression and its correlation with clinical pathological features .Results The positive rate of p53 was 52 .3% .The expression p53 was no correlation with age ,the size of the lesion(P> 0 .05) ,it was correlation with lymph node metastasis ,histological classification and molecular subtype(r=0 .396 ,0 .309 ,0 .167 ,P=0 .000 ,0 .000 ,0 .014) ,and also have negative correlation with the expression rate of ER ,PR (r= -0 .561 ,-0 .315 ,P=0 .000 ,0 .000) ,positive correlation with HER2 and Ki67(r=0 .374 ,0 .153 ,P=0 .000 ,0 .026) .In the group of triple negative breast cancer (TNBC) and the group of non-TNBC ,the difference was statistically significant of expression of p53 (P<0 .05) .Conclusion p53 protein has closely related with the development ,relapse and metastases of breast cancer ,the detection of p53 can be used to guide the individualized therapy and as a reference index to evaluate the prognosis of breast cancer .
7.Disseminated histoplasmosis in a boy presenting fever and jaundice as first manifestations.
Liang CHENG ; Chun-Yuan CHEN ; Yong-Hong GU
Chinese Journal of Contemporary Pediatrics 2010;12(11):927-928
Child, Preschool
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Fever
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etiology
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Histoplasmosis
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complications
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diagnosis
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pathology
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Humans
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Jaundice
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etiology
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Male
9.Antisense oligodeoxyribonucleotide of pituitary tumor transforming gene inhibits proliferation of glioblastoma
Yingxin CHENG ; Yuan GAO ; Wenyuan TANG ; Bingbo CHEN
Journal of Third Military Medical University 2003;0(19):-
Objective To investigate the inhibition effect of pituitary tumor transforming gene(PTTG) antisense oligodeoxynucleotide(ASODN) on C6 glioblastoma in rats.Methods The C6 glioma cells were injected into the right caudate nucleus.PTTG-ASODN of 8 or 16 ?g/ml was injected into the tumor-affected area with stereotactic technique immediately,at 1st and 2nd week after inoculation of C6 cells.Three weeks after C6 cell inoculation,all rats were killed and the tumors were excised,then tumor volume was calculated and pathologically analysed,and immunohistochemical statining for GFAP, PCNA ang PTTG was performed.Results PTTG-ASODN could suppress the proliferation of C6 glioblastoma in a dose-and time-dependent manner.The inhibition effect was better when large-dose PTTG-ASODN was repeatedly used for glioblastoma as early as possible.Conclusion PTTG-ASODN can suppress the proliferation of glioblastoma,which may become a new strategy of gene therapy for glioblastoma.
10.The thinking of graduate medical education of integrity
Yuan CHENG ; Xiaoming ZHANG ; Peng XIE ; Lili DAI ; Dilong CHEN
Chinese Journal of Medical Education Research 2006;0(11):-
Integrity education is not only one of an important aspect of moral education topics for Medical postgraduates,but also an objective requirement in the socialist market economy.Aiming at the modern medical postgraduates'lack of credibility,this paper mainly analyzes its causes such as the limitation of postgraduates'quality and the pressure of employment and dis-cusses how to strengthen integrity education for postgraduate in medical university by bringing supervisors'leading role,enhance the standardized management of employment and upbuilding credibility file etc.