1.Advancement of the combined therapy of colorectal liver metastasis
Chengyong LIU ; Xiabiao PENG ; Xingxiang HE
International Journal of Surgery 2008;35(5):324-326
Colorectal cancer, C RC, is a kind of cancer, which has a high rate of morbidity and mortality.Liver metastasis is the most frequent metastasis way in CRC, and related to the prognosis of the patients.There are many studies on the treatment of colorectal liver metastasis. The resection of the metastasis is one of the major treatments. Other treatments, including chemotherapy, alleviative and immunogenic treatments,are beneficial supplements to the resection. We summariz the indications, contraindications, managements and effects of these treatments.
2.Study of the Mechanism of Cassia Obtusifolia L in Decreasing Blood-lipid
Juying HE ; Songqing LIU ; Yongfu PENG
China Pharmacy 1991;0(04):-
OBJECTIVE:To study the mechanism of Cassia obtusifolia L in decreasing blood-lipid.METHODS:Primary cultures of rat hepatocytes in vitro were used to determine the concentrations of proteins in hepatocytes by the method of Folin-phenol reagent and to assay the cholesterol synthesis from 14 C-acetate with liquid scintillation count.RESULTS:Ex?tract of Cassia obtusifolia L inhibited cholesterol synthesis from 14 C-acetate,but cassiaside B didn't affect cholesterol synthe?sis.CONCLUSION:The mechanism of extract of Cassia obtusifolia L in decreasing blood-lipid may result from inhibition of cholesterol synthesis,but inhibiting cholesterol synthesis may be not the main approach of cassiaside B in decreasing blood-lipid.
3.The ultrasonographic characteristics and common misdiagnosis reason of superficial neurilemmoma
Xuemin PENG ; Yanni HE ; Hongmei LIU
Chongqing Medicine 2014;(22):2888-2889,2892
Objective To investigate the ultrasonic features and differential diagnosis of superficial neurilemmoma ,and improve diagnostic accuracy of superficial neurilemmoma by ultrasound .Methods Retrospectively analyse the ultrasonic findings of 51 ca-ses ,which confirmed for superficial neurilemmoma by pathology ,and analyse the misdiagnosis reason from the aspects of size , shape ,boundary ,internal echo ,blood flow signals .Results Superficial neurilemmoma had some characteristics in the shape ,bound-ary ,internal echo ,blood flow signals and so on .However ,the key point to differentiate it from other diseases was to identify the re-lationship with peripheral nerve .In this study ,the coincidence rate of ultrasonoic diagnosis with pathologic diagnosis was 78 .4% . Conclusion Superficial neurilemmoma have some similarity with neurofibroma or sebaceous cyst on ultrasonographic images .When making diagnosis ,especial attention should be paid to identify the relationship of neurilemmoma with peripheral nerve .
5.Expression of raf-1 in HepG2 strain stably transfected by HBx gene
Cancer Research and Clinic 2006;0(11):-
Objective To investigate the effect on cell cycle of hepatitis B virus x protein and ap- proach the molecular mechanism of x protein's carcinogenesis. Methods Gene transfection mediated by the lipofectamine was used to introduce the eukaryotic expression vector of HBV x gene into human hepato- cellular carcinoma cell line HepG2(HepG2X cell).The selective medium containing G418 was used to select the cell clones which the X protein was expressed constantly.Flow eytometry was used to detect the cycle of the cells;raf-1 protein was detected by Western blot.Results X protein could be expressed on 21?10~3 loca- tion in the transfected cells,while there were no protein expressed in the control cells.The proliferation of X cells increased significantly according to MTS method(P
6.Liver cancer stem cell isolation and biological characteristics
Yan LIU ; Yuesu ZHOU ; Jing HE ; Peng LIU
Chinese Journal of Tissue Engineering Research 2014;(28):4549-4554
BACKGROUND:Normal stem cells and tumor stem cells have differences in cellsignaling pathway of gene expression and dependence. How to find a therapeutic method of selectively kil ing tumor stem cells is a topic that should be studied greatly. OBJECTIVE:To isolate human liver cancer stem cells MHCC97 and to investigate the biological characteristics of them. METHODS:Tumor stem cells were selected from highly metastatic human hepatoma cellline MHCC97 by flow cytometry. CD133-CD34-MHCC97 from normal human liver stem cells and CD133+CD34+MHCC97 from tumor stem cells were isolated. Their phenotypes, growth curve, cellcycle and multi-lineage differentiation were measured. RESULTS AND CONCLUSION:Phenotypes of CD133+CD34+MHCC97 cancer stem cells were CD133+and CD34+and they had the same growth curve and cellcycle with the liver stem cells CD133-CD34-MHCC97, besides, they had the differential ability to epithelial cells and endothelial cells that proved to be stem cells. These results indicated that human cancer stem cells CD133+CD34+MHCC97 had the specific characteristics of tumor stem cells, could differentiate into epithelial cells and endothelial cells, had the biological property of tumor stem cells, was an origin of tumor relapse and metastasis, and a target of clinical therapy.
7.Association of ACTN3 gene R577X polymorphism and athletic performance of Uyghur nationality in Xinjiang.
En-Peng HE ; Xiao-Ming LIU ; Guo-Ying WANG
Chinese Journal of Applied Physiology 2014;30(2):140-141
Actinin
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genetics
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Adolescent
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Adult
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Asian Continental Ancestry Group
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genetics
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Athletes
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Athletic Performance
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China
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Ethnic Groups
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genetics
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Female
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Humans
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Male
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Polymorphism, Genetic
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Young Adult
8.Three-dimensional case teaching method and its application to anesthesia teaching
Chao LIU ; Su MIN ; Xiaoxiao HE ; Peng XIA ; Jun DONG
Chinese Journal of Medical Education Research 2011;10(2):216-219
There are many subjects related to anesthesiology and the band between anesthesiology and clinical practicevery is close. So students can not be proficient in anesthesiology by traditional teaching methods. The use of three-dimensional case teaching method in anaesthesiology teaching is a good attemptment. three-dimensional case teaching method integrate case method, multimedia technology and clinical case. It can help medical students analyze and solve clinical problems, improvetheir academic performance and enhance their clinical basic skills.
9.Determination of hesperidine inErchen mixture by HPLC
Jing LIU ; Peigen HE ; Zhihao LI ; Peng LI
International Journal of Traditional Chinese Medicine 2014;(10):909-911
Objective To establish a method for the determination of hesperidine inErchen mixture. Methods HPLC method was used with Fortis C18(250 mm×4.6 mm,5μm)column and the mobile phase consisted of acetonitrile-acetic acid-water(22∶4∶74). The flow rate was 1.0 ml/min,the column temperature was 30℃, and the UV detector was set at 283 nm.Results The linear ranges of hesperidine was 2.86-57.20μg(r=0.999 8). The average recovery of Aloin was 99.4%.Conclusion The method is rapid, reliable, simple, repeatable and with high specificity. It can be an important supplement for Erchen mixture elevated standard.
10.Correlation Study Between Serum Soluble ST2 Level and the Early Clinical Prognosis in Patients With Acute ST-elevation Myocardial Infarction
Lei HE ; Jian PENG ; Xuan ZHENG ; Chengwei LIU ; Xi SU
Chinese Circulation Journal 2017;32(1):41-45
Objective: To preliminarily investigate the relationship between the baseline level of serum soluble ST2 (sST2) and 30-day MACE occurrence rate in patients with ST-elevation myocardial infarction (STEMI).
Methods: A total of 121 patients with confirmed diagnosis of STEMI in our hospital from 2015-05-01 to 2015-07-30 were consecutively enrolled. According to baseline sST2 level, the patients were divided into 2 groups:Low sST2 group, the patients with sST2≤56.68 ng/ml, n=61 and High sST2 group, the patients with sST2>56.68 ng/ml, n=60. Clinical condition and 30-day MACE (defined as death and new onset of congestive heart failure) occurrence rate were compared between 2 groups.
Results: ① The systolic blood pressure (SBP), Killip class≥II grade, blood levels of cTNI, NT-proBNP, hs-CRP and LVEF were different between 2 groups, all P<0.05. ② Baseline sST2 level was positively related to heart rate (r=0.271, P=0.003), Hs-CRP (r=0.359, P=0.000), cTNI (r=0.324, P=0.000) and NT-proBNP (r=0.425, P=0.000);negatively related to SBP (r=-0.226, P=0.013) and LVEF (r=-0.406, P=0.000).③30-day MACE occurrence rate was different between 2 groups (8.2%vs 30%, P=0.002). ④ Multivariate Cox regression analysis presented that sST2>56.68 ng/ml was the risk factor for 30-day MACE occurrence (HR=1.152, 95%CI 1.078-1.231, P=0.000).
Conclusion: Increased baseline level of sST2 implied the higher incidence of death and new onset of congestive heart failure in STEMI patients.