1.Research progress in EMT and fibrosis of hepatobiliary system
Journal of Clinical Hepatology 2014;30(7):695-699
Epithelial-mesenchymal transition (EMT),which means the transformation of epithelial cells into mesenchymal cells under the influence of cytokines,leading to pathological changes in tissues.According to recent research findings,EMT plays an important role in or-gan fibrosis.Various types of EMT in the fibrosis of hepatobiliary system,as well as the characteristics of each stage and the disease progres-sion,are described,which is of great significance for understanding the development,termination,and even reversion of EMT and fibrosis of hepatic and biliary epithelial cells.
2.On Fundamental Features of TCM Psychological Theory of Sun Simiao
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(02):-
As an independent subject, TCM psychology appeared in 1980s, but it could be traced back to the book, the Inner Canon of Huangdi (Huangdineijing) formed in Qin and Han Dynasties. Physicians in the later generations developed TCM psychology based on that occurred in the Inner Canon of Huangdi, which made it became mature gradually, and Sun Simiao was one representative figure among them. The fundamental features of TCM psychological theory of Sun Simiao are summarized here.
3.Progress of EML4-ALK fusion gene non-small cell lung cancer inhibitor
Qi ZHANG ; Feitianzhi ZENG ; Lei ZHANG
Journal of International Oncology 2012;39(1):35-37
EML4-ALK fusion gene is a new molecular type of non-small cell lung cancer,which is formed by inversion of two gene segments on chromosome 2.Up to now,9 subtypes have been found and all of them have deteriorated and carcinogenic abilities. The detection rate of this fusion gene is much higher in patients who have adenocarcinoma,never or seldom smoke and lack EGFR/KRAS mutation.This fusion gene codes ALK tyrosine kinase,that abnormally phosphorylates downstream products through signaling pathways,leading to canceration.Therefore,the specific inhibitors which target this fusion gene could inhibit its expression and have good treatment effect.At present,the relevent inhibitors which are undergoing clinical trials are PF02341066 and TAE684.
4.Expression of psoriasin in actinic keratosis, Bowen's disease and squamous cell carcinoma and its significance
Lei XU ; Weihui ZENG ; Yan ZHENG
Chinese Journal of Dermatology 2012;45(4):263-265
ObjectiveTo investigate the expression of psoriasin in actinic keratosis(AK),Bowen's disease and squamous cell carcinoma(SCC) tissues.MethodsImmunohistochemistry was carried out to quantify the expression of psoriasin protein in tissue specimens from the lesions of 20 patients with AK,25 patients with Bowen' s disease,21 patients with well differentiated SCC,and16 patients with poorly differentiated SCC,as well as from the skin of 18 normal human controls.ResultsThe expression rate of psoriasin was 11.1% in the control specimens,significantly different from that in the AK(95.0%),Bowen's disease (88.0%),well differentiated SCC (95.2%),and poorly differentiated SCC (92.3%) specimens (all P <0.01 ).Psoriasin was expressed in the cytoplasm of keratinocytes and dyskeratotic keratinocytes in stratum corneum and upper 1 to 3 layers of stratum spinosums in AK tissue,in the cytoplasm of keratinocytes as well as the membrane and cytoplasm of vacuolated cells in all layers of the epidermis in Bowen's disease tissue.In well differentiated SCC,cornified pearl and dyskeratotic keratinocytes located in the stratum comeum and all layers of the stratum spinosums stained positive for psoriasin,and in poorly differentiated SCC,psoriasin was distributed in the stratum corneum and upper 1 to 5 layers of the stratum spinosums,but absent in poorly differentiated squamous cells.The expression intensity of psoriasin in tissues sequentially increased from AK,Bowen's disease to well differentiated SCC.Though the expression intensity of psoriasin in poorly differentiated SCC decreased,but was still higher than that in normal skin tissue(P < 0.05).ConclusionPsoriasin is abnormally expressed in skin disorders with dysdifferentiation of squamous cells.
5.Effect of Kang-Xian Yi-Xin Formula on Cardiac Ultrasonography of Patients with Dilated Cardiomyopathy
Chuiyi ZENG ; Zhentao WANG ; Lei CHEN
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(1):109-111
This study was aimed to observe the influence of Kang-Xian Y i-Xin (KXYX) formula on the heart size and cardiac function of patients with dilated cardiomyopathy (DCM). A total of 85 cases were randomly divided into the treatment group (43 cases) and the control group (42 cases, with 1 death case). Both groups were treated with routine western medicine. And the KXYX formula was combined in the treatment group once a day. Six months later, changes of the left ventricular end diastolic diameter (LVEDD), left atrial diameter (LAd), ejection fraction (EF) and fractional shortening (FS) were observed by ultrasonography. The results showed that both groups can reduce the LVEDD and Lad. And the effect was obvious in the treatment group (P< 0.05). There was significant difference in the LVEDD of both groups after treatment (P< 0.05). The EF and FS were raised obviously in both groups. There was significant difference before and after treatment in the treatment group (P < 0.01). There was statistical differ-ence between groups after treatment (P< 0.05). It was concluded that the KXYX formula can decrease the LVEDD, Lad, enhance EF and FS, in order to promote the cardiac function of patients with DCM.
6.One case report of successfully occluded aortopulmonary septal defect in young infant
Rongsong YI ; Hongjun ZENG ; Xianqiang LEI
Journal of Clinical Pediatrics 2014;(7):614-615
Objective To explore the method and efifcacy of intervention aortopulmonary septal defect (APSD) in young infant. Methods A four month old APSD infant had undergone interventional treatment using homemade ventricular septal de-fect occluder, and was followed up to observe the curative effect. Results The APSD had been successfully closured, and the clinical symptoms improved instantly. The follow-up showed heart function improved, heart shadow reduced, and growth well. Conclusions APSD interventional therapy is a safe, effective treatment in young infant.
7.Meta-analysis of the influential factors on cervical cancer among married Chinese women in recent 10 years
Lei WAN ; Longyu LI ; Siyuan ZENG
Clinical Medicine of China 2013;29(z1):133-136
Objective To investigate the risk factors of cervical cancer in Chinese married women in recent 10 years in order to provide evidence based approaches for cervical cancer prevention and control Methods Eight case-control studies from 2002 to 2011 were selected from research literatures by using keywords such as cervical cancer, risk factors, influential factors and case-control study, cancer, risk factors, factors andcase-control study as the search term.We adopted the Mentel-Haensel fixed effect model and Dersimonion-Laird random effect model to gain a comprehensive and quantitative assessment of cervical cancer and its risk factors.Results Among the 8 case-control studies,the total number of cases and controls were 2868 and 8045,respectively.The risk factors included human papilloma virus (HPV) (RR =5.47,95 % CI:3.40-8.82),family history of cervical cancer (RR =2.40,95 % CI:1.39-4.16),number of abortions (RR =1.74,95% CI:1.49-2.03),first sexual intercourse age number of sexual partners (1.72,95% CI:1.36-2.16),low cultural level (RR =1.68,95% CI:1.18-2.40).Conclusion The major risk factors for cervical cancer among married women in China included HPV,family history of cervical cancer,number of abortions,first sexual intercourse age number of sexual partners and low cultural level.
8.Long-term results of endocrinotherapy and(or) radiotherapy for moderately and far advanced prostate cancer
Guixia ZHOU ; Lei ZHAGN ; Diwen ZENG
Chinese Journal of Urology 2001;0(08):-
Objective To study the longterm result of endocrinotherapy and (or) radiotherapy for moderately and far advanced prostate cancer. Methods 256 cases of moderately or far advanced prostate cancer were treated with endocrinotherapy (surgical castration + postoperative drug administration) and (or) radiotherapy.182 cases were of stage C and 74 stage D.There were 236 adenocarcinoma,7 squamous cancer and 13 undifferentiated cancer.Gleason score was ≥6 in 202 patients and 134 had pelvic lymphoid metastasis. Results In 92.2%of the patients,the serum PSA dropped under 2 ng/ml shortly after the treatment.The overall 5,10,15 year survival rates were 48.8%,29.7% and 13.3% respectively.For stage C cases,these were 58.2%,38.4%,17.7% and for stage D 25.7%,6.4%,0.The 5 and 10 year survival rates were significantly different between stage C and D(P
9.Relative Factors of Functional Recovery after Upper Limb Replantation
Lei ZENG ; Chen LIU ; Jun WANG
Chinese Journal of Rehabilitation Theory and Practice 2016;22(10):1214-1217
Objective To analyze the relative factors of functional recovery after upper limbs replantation. Methods From September, 2009 to March, 2014, 24 consecutive patients after upper limb replantation for amputation were retrospectively analyzed. The Disability of Arm Shoulder and Hand (DASH) was used to assess the functional recovery of the upper limbs at the last follow-up. The non-conditional Logistic regression was used to analyze the correlation of gender, age, time from injury to surgery, amputated level, amputated method, isch-emia hours, dominant hand or not, rehabilitation treatment, rehabilitation duration, and the DASH scores. Results The DASH score was>28.50 in 15 patients, while ≤28.50 in 9 patients. The Logistic regression analysis demonstrated that amputated method and rehabilitation treatment correlated with the functional recovery of upper limbs (χ2>7.360, P<0.05), and no correlation was found in the other factors (χ2<3.789, t=1.515, P>0.05). Conclusion The amputated method and rehabilitation treatment after operation are the factors related to the func-tional recovery after upper limb replantation.
10.Bone marrow mesenchymal stem cell mediated gene transfer into rat lung
Qun LIN ; Lihua LEI ; Bangxiong ZENG
Chinese Journal of Anesthesiology 1994;0(03):-
Objective To determine the feasibility of achieving local transgenic expression in the rat lung using bone marrow mesenchymal stem cells ( MSCs) transfected with Lac-Z gene. Methods Primary cultures of bone marrow MSCs from Lewis rats were transfected with the pSV-?-galactosidase control vector and labelled with a fluorescent, membrane impermeable dye DAPI. The transfected and labelled MSCs (5?105 cells/animal) were injected into the jugular vein of syngenetic recipient rats. The animals were killed at 48 h and 8 wk after injection respectively. The lungs, spleens, livers, kidneys and skeletal muscle were then excised and examined under fluorescene microscope. The transgenic expression of Lac-Z gene was detected by incubating with the X-gal chromogen.Results Only a few DAPI labelled MSCs could be identified in the spleen, liver, kidney and skeletal muscle, whereas a large amount of DAPI labelled MSCs could be identified in the lung and most of them lodged in the lung parenchyma and air sac at 48h and 8wk after intravenous injection of transfected MSCs. After incubation with the X-gal chromogen, microscopic examination showed that a large number of MSCs with multiple intense blue staining were scattered throughout the lung. On the contrary only a few cells with blue staining could be identified in the spleen and kidney and no MSCs with blue staining could be seen in the liver pancreas and skeletal muscle. Conclusion Genetically modified MSCs injected into the jugular vein can target the lung effectively and achieve local transgenic expression for a long time.