1.Changes in nitriergic nerves and interstitial cell of Cajal in intestinal myenteric plexus of scalded rat during early post-burn stage
Xu QIAN ; Chen LIN ; Qichuan ZHUGE
Medical Journal of Chinese People's Liberation Army 2001;0(11):-
Objective To study the changes in nitriergic nerves and interstitial cell of Cajal (ICC) in intestinal myenteric plexus of scalded rats during early post-burn stage. Methods 20 rats were randomly divided into scald group (n=10) and control group (n=10). A rat model of 30% TBSA with II degree scald was reproduced in the scald group. The rate of enteric transit was measured, and the histological changes in nitriergic nerves in intestinal myenteric plexus of scalded rat were observed as well. The densities of neurons and ganglions with positive nitric oxide synthetase (NOS) as well as ICC in duodenal myenteric plexus were assessed for both groups. Results In the rats in scalded group, the rate of enteric transit was prolonged, and the number of nitriergic nerves and ICC in myenteric plexus of rat duodenum were significantly decreased (P
2.Expression of Survivin gene in human non-small-cell lung cancer: association with Caspase-3 and Bcl-2
Feng YAO ; Lin TAO ; Qian CHEN
China Oncology 2001;0(02):-
Purpose: To investigate the expression of Survivin gene and its relationship with expression of Caspase-3, B-cell lymphoma-2( Bcl-2) in human non-small-cell lung carcinoma( NSCLC) . Methods: Expression of the Survivin mRNA was evaluated by in situ hybridization (ISH) in 13 normal bronchial epithelium, 11 dysplasia, 54 NSCLC and 12 lymph node metastasis. Immunohistochemical assay was used to detect the expression of Caspase-3 and Bcl-2 proteins. Results: Expression of Survivin was detected in a significantly greater proportion in NSCLC (74. 07%) and lymph node metastasis (91. 67%) than normal bronchial epithelium (7. 69%) and dysplasia ( 27. 27%) (P
3.DDX43 gene and tumors
Qin CHEN ; Jiang LIN ; Jun QIAN
Journal of International Oncology 2015;42(2):115-117
DEAD (Asp-Glu-Ala-Asp) box polypeptide 43 (DDX43) plays an important role in the malignant proliferation,drug resistance of tumor cells as well as neoplasm immunotherapy.The overexpression of DDX43 has been found in various solid tumors and some hematologic malignancies.The hypomethylation of DDX43 gene promoter is identified in chronic myeloid leukemia,acute myeloid leukemia and myelodysplastic syndrome,which is correlated with DDX43 overexpression and the prognosis of these diseases.
4.PUMA gene in cancer treatment
Qingchun LUAN ; Haijuan WANG ; Haili QIAN ; Yan CHEN ; Chen LIN
Journal of International Oncology 2011;38(11):803-805
PUMA (p53 up-regulated modulator of apoptosis) is a recently discovered Bcl-2 family member which could be rapidly induced by p53 and has strong pro-apoptotic effects.PUMA has attracted much attention in the research of life science.PUMA expression results in potent growth suppression of some cancer cells through induction of apoptosis.PUMA can also significantly sensitize some cancer cells to chemotherapeutic agents and irradiation through induction of apoptosis.PUMA is potentially useful in gene therapy of tumor.But recently,researchers have also found that PUMA participates in the process of carcinogenesis and possessed important biological functions.
5.Quantitive analysis of regional left ventricular systolic function before and after PTCA by quantitative tissue velocity imaging
Yuhuan XIE ; Qian HUANG ; Binghua CHEN ; Qingshan LIN ; Wei ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2008;15(2):194-195
Objective To analyze regional left ventricular systolic function before and after percutaneous translumial coronary angioplasty(PTCA),quantitative tissue velocity imaging(QTVI)was used tO detect wall motion of left ventricule.Methods 20 patients with isolated left anterior descending coronary artery(LAD)stenosis(≥70%)and 16 normal control subjects were included in this study.QTVI was performed one day before PTCA+stent,a week and a month after successful PTCA+stent.Peak systolic myocardial velocity(Vs)were measured with QTVI at different wall segments(basal and medial segments).Results Before PTCA+stent,Vs of all segments assigned by LAD were significantly lower than those of corresponding segments in normal subjects(P<0.01).After PTCA+stent,the above segments showed a significant improvement of Vs in a week and a month(P<0.01).Conclusion QTVI can quantitively detect changes of myocardiac motion and real-time quantify regional left ventricular systolic function before and after PTCA.
6.Clinical and neuroimagings analysis in 10 patients with lupus encephalopathy
Zhi LIU ; Lin CHEN ; Liying CUI ; Min QIAN ; Xiaoguang LI
Chinese Journal of Neurology 2012;45(9):664-668
Objective To report specific clinico-radiological syndromes in neuropsychiatric systemic lupus erythematosus (NPSLE).Methods Ten patients with NPSLE in Peking Union Medical College Hospital from 2005 to 2011 were studied retrospectively with magnetic resonance imaging, computer tomography or positron emission tomography. Results Posterior reversible encephalopathy syndrome was diagnosed in 2 patients with radiological features,headache and tonic-clonic seizure;3 patients with bilateral diffuse leukoencephalopathy,cognitive disorder and acute confusional state; 1 Fahr' s disease patient,with cognitive disorder and psychiatric symptom,movement disorder; 2 Parkinsonism patients with tremor and cogwheel rigidity,and 2 chorea patients. Conclusions The emergence of diffuse brain calcinosis,leukoencephalopathy and edema may happen in lupus encephalopathy particularly.Autoantibody reaction and vascular disease may play an important role in movement disorder including Parkinsonism and chorea.
7.Regulation of rhIFN-? and rhIL-2 on vascular endothelia l cell in vitro
Yan LEI ; Qian GAO ; Yanlin LIN ; Keji CHEN ; Taixi SHI
Chinese Journal of Pathophysiology 1986;0(02):-
AIM: To study the effects of rhIFN-? and r hI L-2 on human umbilical vein endothelial cell (HUVEC) proliferation, migration, cell cycle and vascular endothelial growth factor (VEGF). METHODS: Cultured HUVECs were used as model to determine the cel l proliferation with MTT method. Cell cycle was analyzed by cytometry. The cell migration was investigated by agarose scraping method and vascular endothelial g rowth factor (VEGF) content in supernatant of cultured HUVEC was determined by e nzyme-linked immunosorbent assay (ELISA). RESULTS: The growth and migrating number of endothelial cells in rhIFN-? group were 0.199?0.009 and 75.750?23.330, in rhIL-2 group was 0 .217?0.005 and 49.250?8.140, and in combined group was 0.183?0.080 and 40.500?17.230, respectively. In comparison with control group (0.248?0.005 and 160.500?13.220), the effects showed more significant (all P0.05). CONCLUSIONS: rhIFN-? and rhIL-2 show inhibitory effect on vasc ular endothelial cell proliferation, migration and DNA synthesis. When used in c ombination, synergistic effect of rhIFN-? and rhIL-2 is observed, suggesting th at these cytokines play an important role in angiogenesis diseases.
8.Early diagnosis and prevention of tibia fatigue fracture
Hongxian CHEN ; Shiping JIANG ; Qian XU ; Daopang LIN
Chinese Journal of Orthopaedic Trauma 2002;0(04):-
Objective To investigate early diagnosis,treatment and prev ention of tibia fatigue fracture. Methods From August 1988 to July 1999, 66 case s of tibia fatigue fracture were treated with exposure to the irradiation of Zho u Lin Spectrum Treatment Device, plaster splintage, according to their different clinic characteristics and results of X-gram.Results The 66 cases were followe d up for an average of 6 months. The result was excellent in 50 cases, good in 1 6, with the excellent and good rates of 100%. Conclusions As a result of a chro nic course of accumulative injury, the tibia fatigue fracture develops from quan titative changes to qualitative changes. It is essential for medical workers to have a good knowledge of the classification and features of the condition. It is also important for the army to make scientific and reasonable training plans fo r the soldiers.
9.The protective effects and mechanism of Green Tangerine induced hypertension and mild hypothermia on brain infarction during focal cerebral ischemia and reperfusion
Hong CHEN ; Kun QIAN ; Fei ZENG ; Xiao-Lin HUANG ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(11):-
Objective To investigate the protective effects of Green Tangerine induced hypertension and mild hypothermia on focal cerebral ischemia and reperfusion and local cerebral glucose utilization(LCGU)in the in- farction rim in rats.Methods A total of 64 rats were used and randomly divided into a control group,a Green Tan- gerine induced hypertension group,a mild hypothermia group and a combination therapy group.The neurologic defi- cits,infarct size and LCGU were observed in the rats with focal cerebral ischemia and reperfusion.Results Com- pared with the control group,the neurologic deficits(P
10.Research in effect of nursing intervention on prevention of surgical site infection after gastrointestinal operation
Weihong LIN ; Yunzhi CHEN ; Qiqiang ZENG ; Huangjing QIAN ; Qiyu ZHANG
Chinese Journal of Practical Nursing 2009;25(9):3-5
Objecltive To intensify the coordination and nursing in the operation room in order to prevent surgical site infection after gastrointestinal operation. Methods 337 medical history of patients received gastrointestinal operation and third rate healing from 1999 to 2006 were collected. A series of intensified measures were applied to surgical site infection from 2003 gradually, including invocation of new surgical handwashing method, modified skin disinfection manner, adoption of degreasing with ethanol first before disinfection with iodophor, placement of incision protector and clean bag for incision protection after entering abdomen, changing to use new gastrointestinal anastomofic thimerosal,standardization of operation order and clean manage-ment in operation room. The incidence rate of surgical site infection after gastrointestinal operation of patients from 1999 to 2002 and from 2003 to 2006 underwent χ2 test. Results The incidence rate of surgical site in-fection after gastrointestinal operation greatly decreased after adoption of intensified nursing intervention, Signifi-cant difference existed in rate of patients with third rate healing between the year 1999 to 2002 and 2003 to 2006. Conclusions Modified nursing intervention for surgical incision after gastrointestinal operation can de-crease incision infection rate evidently.