1.Resection of esophageal carcinoma through cervico-right thoracic-abdominal triple incision
Chinese Journal of Primary Medicine and Pharmacy 2006;0(07):-
Objective To discuss the indication,the prevention and treatment of complications of the esophagectomy through cervico-right thoracic-abdominal triple incision.Methods 420 cases of esophageal carcinoma were analyzed retrospectively.Results The success rate of this procedure was 99.81%,and 5 cases died postoperatively,the morality was 1.19%.Lymph node metastases were presenting in 188 cases.The gross rate of the lymph node metastasis was 44.76%,the rate of the lymph node metastasis in neck,chest and abdomen were 4.76%,41.90% and 20.95%.The occurrence rate of the anastomose leakage was 3.80%.326 cases were followed up(90.95%).The overall 3-,5- years survival rate were 61.85%(193/312 cases) and 34.72%(75/216 cases).Conclusion The advantages of this approach are relatively radical resection,less severe complications.
2.Construction and in vitro functional evaluation on a new hybrid bioartificial liver
Sen GAO ; Yunfeng ZHANG ; Huancheng ZHOU ; Ying GUO ; Yi GAO
Chinese Journal of Hepatobiliary Surgery 2015;21(10):699-702
Objective To design a new type of hybrid bioartificial liver (HBAL), evaluate its efficacy in vitro, and explore the feasibility in clinical application.Methods CL-1 human hepatocytes were cultured on microcarriers for 5 days, when cell count reached about 4.0 × 109 with cell density of about 4.0 × 107/ml.CL-1 cells cultured on microcarriers in home-made bioreactor constitute the biological part of the HBAL.The abiotic part included blood perfusion and bilirubin adsorption, and blood pump was employed as the circulation driver, which were parts of HBAL.The changes of the concentrations of indirect bilirubin (UBD), chenodeoxycholic acid (CDCD), cholic acid (CA), blood ammonia (AA), AST, ALT and LDH were observed under the condition of in vitro circulation.Meanwhile, the function, morphology and the cell activity of CL-1 cells were also observed.Results After in vitro circulation for 24 h, the concentrations of UBD, CDCD, CA and AA significantly decreased from (335.3 ± 6.0) μmol/L, (395.0 ± 5.6) μmol/L, (155.7 ± 4.5) μmol/L, (39.0 ± 2.6) μmol/L at 0 h to (106.0 ± 10.9) μmol/L, (131.8 ± 28.7) μmol/L, (42.2 ± 7.3) μmol/L, (3.5 ± 1.0) μmol/L, respectively.At 48 h, ALT, AST and LDH significantly increased from (25.9 ± 4.2) IU/L, (22.0 ± 3.6) IU/L, (0.28 ± 0.09) μmol/L to (31.0 ± 2.6) IU/L,(31.6 ± 8.0) IU/L, (0.41 ± 0.12) μmol/L, meanwhile the count and vitality of CL-1 cells were significant declined.Conclusions (1) In the new HBAL system, CL-1 cells can keep its viability and function in vitro;and (2) the HBAL appears to be effective in purifying the serum in liver failure simulation model by clearing out non-conjugated bilirubin, chenodeoxycholic acid, cholic acid and ammonium chloride, which seems to be a promising therapeutic option.
3.Researches promote the institutional development of urban community health service centers
Yunfeng YANG ; Liping XU ; Wenqin GU ; Chuntao YI
Chinese Journal of General Practitioners 2017;16(5):353-355
Carrying out researches in urban community health service centers can effectively promote the improvement of management system, the cultivation of talents and the formation of characteristic service, leading to the institutional development.This paper summarizes the role and significance of researches in promoting the overall development of urban community health service center in order to provide reference for the relevant medical institutions based on the experiences in Shanghai Fenglin Community Health Service Center.
4."Discussion on the idea of""He""of Chinese medicine in the palliative care"
Yunfeng YANG ; Chuntao YI ; Binhong PU ; Wei XUE
International Journal of Traditional Chinese Medicine 2016;(2):103-104
The palliative care has become an important part of social civilization. Its treatment of advanced patients with no response to the treatment of patients with positive and comprehensive care, paying attention to the people-oriented conforms to the Chinese nationHeperfectly. In palliative care practice,Heconcept penetrates in the happening of the disease and development, treatment and special and complex and changeful in interpersonal relationship. The ultimate goal of He is also a palliative care. The concept of reconciliation will promote the development of palliative care.
5.Effects of efaroxan on insulin release from pancreatic βcells
Yi ZHANG ; Yunfeng LIU ; Jingying GAO ; Yaqin DING
Chinese Pharmacological Bulletin 2015;(4):524-526,527
Aim To study the insulinotropic effects of Efaroxan and the underlying mechanism in rat βcells. Methods Pancreatic islets were isolated by college-nase p digestion.Radioimmunoassay was used to meas-ure insulin secretion and cAMP level in rat pancreatic islets.Results Efaroxan only potentiated insulin se-cretion at high glucose concentrations(8.3,1 1 .1 mmol ·L -1 )but not at low glucose concentrations.KU1 4R,an antagonist of Efaroxan,remarkably inhibited Efarox-an-potentiated insulin secretion;and similarly,KU1 4R significantly inhibited forskolin-induced and IBMX-in-duced insulin secretion.cAMP measurement showed that forskolin and IBMX significantly increased cAMP levels,but Efaroxan and KU1 4R had no effects on cAMP content in pancreatic islets.Conclusion The mechanism of Efaroxan-potentiated insulin secretion is related to downstream of cAMP signaling pathway, KU1 4R antagonized the downstream of cAMP signaling leading to its inhibitory effects on Efaroxan,forskolin and IBMX-induced insulin secretion.
6.Exosomes are involved in calcification of vascular smooth muscle cells induced by high phosphorus
Yunfeng XIONG ; Yan WANG ; Lijuan QU ; Yi YU
Chinese Journal of Nephrology 2021;37(5):424-430
Objective:To explore the regulatory role of exosomes in calcification of rat vascular smooth muscle cells (VSMC) induced by high phosphorus.Methods:VSMC (A7r5 cells) were cultured in vitro and randomly divided into three groups: normal phosphorus group (0.9 mmol/L), high phosphorus group (2.6 mmol/L) and high phosphorus exosomes induction group (i.e. the exosomes extracted from high phosphorus group were added to VSMC in normal culture). Until the 7th day of culture, the culture medium of normal phosphorus group and high phosphorus group obtained during the change of cell culture medium was collected, and the precipitate was obtained by ultracentrifugation and suspended by phosphate buffered saline. The protein content of the precipitate was determined by BCA protein quantitative method. The precipitates were identified. The structure and size of exosomes were observed by transmission electron microscope. The exosomes marker proteins tumor susceptibility gene 101 protein (TSG101) and CD9 were detected by Western blotting. The miRNA in exosomes was extracted, and the expression of related miRNA (miR-30b, miR-204, miR-211) were observed by real-time quantitative PCR. After 7 days of cultivation, the exosomes uptake process of VSMC in high phosphorus exosomes induction group was observed. The calcium deposition was detected by Alizarin stain, and the calcium content was detected by O-cresol complex copper. The content of alkaline phosphatase was detected by colorimetry. The protein expression of Runx2 was quantified by Western blotting. Results:(1) The precipitate obtained by ultracentrifugation of the cell culture fluid was identified as exosomes by electron microscopy morphology. Western blotting confirmed that the expression of the exosomal marker proteins TSG101 and CD9 were positive. (2) The exosomes were rich in miRNAs. The expression of miR-30b, miR-204, miR-211, which negatively regulated the transcription of Runx2, was significantly down-regulated in the high-phosphorus group compared with the normal group ( P<0.05). (3) After culturing rat VSMC with high phosphorus for 7 days, calcium salt deposition was obvious. Compared with the normal phosphorus group, calcium content and alkaline phosphatase activity were significantly increased (both P<0.05), and Runx2 expression was also significantly increased ( P<0.05). (4) Added the obtained high-phosphorus exosomes to the normal cultured VSMC, the exosomes could be taken up by VSMC and successfully induced VSMC calcification. The levels of cell calcification indicators and Runx2 expression were significantly increased. Conclusions:High phosphorus induces calcification of VSMC and promotes the increase of Runx2 expression. The mechanism may be realized by releasing exosomes from VSMC to transmit cell signals.
7.The application value of ultrasonography in the victims of Wenchuan earthquake ZHANG Hai-feng,
Haifeng ZHANG ; Yu WANG ; Yunfeng WEI ; Qiyu LIU ; Jinhong WANG ; Yi WU
Chinese Journal of Ultrasonography 2008;17(9):796-798
Objective To investigate the application value of uItrasonography in the classifying patients,preventing and treating the major earthquake-induced complications.Methods Seven hundred and forty-three patients were divided into four sorts by region of injuries:thoracic cavity,abdominal cavity,blood vessels of limbs and crush.According to the admission time,there were two phases and the data was analyzed respectively.Results Abnormal ultrasonic image was found in 218 of all patients,with positive ratio 29.3%.In the first phase,the morbidity of crush-induced hematoma was the highest,followed by pleural effusion,spleen rupture,liver fracture,injury of blood vessels,renal damage,intestinal rupture and crush syndrome with renal failure.Compared with that of the first phase,the morbidity of the injury of blood vessels and crush syndrome with renal failure increased in the second phase.Conclusions It was important to analyze the earthquake-induced injury because the major earthquake often cause the damage of multiple organs.
8.Huge pyogenic liver abscess (PLA) in an elderly patient with diabetes following the pancreaticoduodenectomy
Yunfeng LIU ; Linhui LI ; Yi ZHANG ; Linxin XU ; Jianhong YIN ; Li SUN ; Jing YANG
Chinese Journal of Endocrine Surgery 2019;13(3):256-258
We described an elderly female with type 2 diabetes referred to our hospital with fever,nausea and upper abdominal pain.The patient had got duodenal tumor and received the pancreaticoduodenectomy (PD) 12 years ago.The laboratory examinations revealed white blood cells (WBC) increasing and severe hypocalcemia.Abdominal computed tomography (CT) revealed a huge gas-forming pyogenic liver abscess (PLA) in left lobe of the liver.The patient got cured after correction of calcium metabolism disorders,treatment with antibiotic and receiving percutaneous tube drainage.We concluded that we should remain on high alert of those patients with DM and the history of cancer,when he or she gets fever of unknown origin and abdominal tenderness.PLA should be considered.
9.PI_3 K/Akt signal effects Ephrin-A1 mediated malignancy of HCC cells
Gang CHEN ; Yi WANG ; Mengtao ZHOU ; Hongqi SHI ; Zhengping YU ; Yefan ZHU ; Fuxiang YU ; Yunfeng SHAN
Chinese Journal of General Surgery 2009;24(10):788-791
Objective To investigate the role of PI_3 K/Akt signal pathway in Ephrin-Al gene mediated invasion,metastasis of Huh-7 cells.Methods Western blot was used to test the protein expression of phosphatidylinositol 3-kinase(PI_3 K)and mitogen-activated protein kinase(MAPK)after Huh-7 cells were treated with Ephrin-A1/Fc fusion protein.According to the protein expression,LY294002 was used to block PI_3 K/Akt pathway specifically,then p-Akt protein expression,mobility and invasive ability of Huh-7 cells were examined.Results In Huh-7 cells actived by Ephrin-Al/Fc fusion protein,p-Akt expression was higher than that in control group(t=4.564,P<0.05),but there was no difference of p-p38MAPK expression between Ephrin-Al/Fc fusion protein group and IgG/Fc fusion protein group(P>0.05).PI_3 K/Akt pathway was specifically blocked by LY294002,the p-Akt protein expression decreased in Huh-7 cells,and the mobility and invasive ability mediated by Ephrin-Al in Huh-7 cells decreased(P<0.05).Conclusions PI_3 K/Akt pathway effects an important role in mobility and invasive ability of Huh-7 cells mediated by Ephrin-A1.
10.Application of the mirror visual feedback in recovering upper limb function after stroke:an integrative review
Yingxin LI ; Yunlan JIANG ; Yinping YI ; Wanlin LIU ; Yixian LIU ; Yixun TANG ; Yunfeng LIU
Chinese Journal of Practical Nursing 2016;32(22):1753-1756
It analyzed the definition, mechanism, characteristics of Mirror Visual Feedback and summarized the application of mirror visual feedback in recovering upper limb function after stroke patients at home and abroad, so as to provide evidences for the further research in China.