1.Impaired glucose tolerance,angiopathy and advanced glycation end products
Chinese Journal of Pathophysiology 1986;0(02):-
The definition of impaired glucose tolerance (IGT) was first introduced by the National Diabetes Data Group at 1979. Recently the morbidity rate of IGT is soaring. About 10%-15% of patients with IGT will progress to type 2 diabetes mellitus (T2DM) which is approximately more than 100 times comparing with normal glucose tolerance people. Angiopathy can be detected in 40% patients with newly diagnosed IGT. Advanced glycation end products (AGEs) are closely related to angiopathy. Meanwhile there is some connection between IGT and AGEs. In this review, the relationship between IGT, agiopathy and AGEs is discussed.
2.Preoperative CT prediction for Masaoka staging of thymic epithelial tumor
Zhan FENG ; Zhen HUANG ; Liang ZHANG
Chinese Journal of Radiology 2013;(3):216-219
Objective To discuss the value of CT prognosis on the Masaoka staging system of thymic epithelial tumors(TET) before surgical resection.Methods The CT images of 102 patients with TET proved by surgery and pathology were reviewed retrospectively.The TET were reclassified according to Masaoka stage system.The size,homogeneity,sharp,contour,infiltration of surrounding tissue,and metastasis on CT were analyzed with Logistic analysis.The diagnostic value was also evaluated with a ROC curve.Results Masaoka pathologic stages were stage Ⅰ for 36 (35.3 %),stage Ⅱ for 27 (26.5 %),stage Ⅲ for 30 (29.4 %),and stage Ⅳ for 9 (8.8 %).A multivariable Logistic regression model showed that TET with larger size of tumor (20/35,P =0.0371,OR =4.539),irregular or lobulated tumor contour (26/42,P =0.0230,OR =4.870),heterogeneous (21/33,P =0.0154,OR =6.020),infiltration of surrounding fat (25/32,P =0.0019,OR =14.005),and pleural seeding (11/11,P =0.0032,OR =36.153)were more likely to have stage Ⅲ or Ⅳ disease.The area under ROC curve was 0.940.Conclusions The tumor CT imaging features can differentiate between stage Ⅰ,Ⅱ and stage Ⅲ,Ⅳ disease.This helps identified patients more likely to benefit from neoadjuvant therapy.
3.Life quality of the patients with tongue cancer after operation
Honghui GU ; Jianying FENG ; Jing ZHAN
Journal of Practical Stomatology 2001;0(03):-
Objective:To assess the life quality of the patients with tongue cancer after operation.Methods:80 cases of tongue cancer following surgery during 1994 to 1998 were reviewed with questionaire.Scords of University of Washington Quality o f Life (UW-QOL) were analysed to evaluate their life quality.Results:(1) 3-year survival rate was 72.5%,higher survival rate was observed in the patients with I and II stage lesion than those with Ⅲ and Ⅳ stages.(2) 58 cases of survivers had UW-QOL average score of 618. Some patients had serious disability in mastication, swallowing,speaking and shoulder movement.(3)Patients retaining mandible or with skin flap repair had higher quality of life than the others.Conclusion:Following surgery,tongue cancer patients still maintain comparatively high quality of life.Reconstruction of mandibular or tongue is very importent for the life quality of the patients.
4.Expression, purification and phosphoinositide binding specifity of recombinant human SNX7 expressed in Escherichia coli.
Zhan FENG ; Tingting XU ; Jinxin XU
Chinese Journal of Biotechnology 2014;30(9):1436-1445
Sorting nexins (SNXs) are a large group of proteins that contain Phox (PX) domain and involve in regulating endocytosis and endosome sorting. SNX7, a member of SNXs family, contains a PX domain and a BAR domain. In zebrafish, SNX7 is a liver-enriched anti-apoptotic protein and indispensible for the liver development. A fragment of SNX7 cDNA ((px-bar)snx7), encoding the PX domain and the BAR domain, was inserted into the expressing vector p28a, transformed into E. coli Rosseta 2 (DE3), and then induced by isopropyl β-D-1-Thiogalactopyranoside (IPTG). After affinity, ion exchange and gel filtration purification, the purity of (PX-BAR)SNX7 reached over 95%. Dynamic light scattering (DLS) experiment indicated that (PX-BAR)SNX7 was homogeneous in solution. Lipid overlay assay showed that (PX-BAR)SNX7 can bind to PtdIns(5)P, PtdIns(4,5)P2 and PtdIns(3,4,5)P3.
Escherichia coli
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metabolism
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Genetic Vectors
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Humans
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Phosphatidylinositols
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metabolism
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Recombinant Proteins
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biosynthesis
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Sorting Nexins
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biosynthesis
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Substrate Specificity
5.Effect of Paeonol on PGI2,TXA2,ET and NO in Diabetic Rats
Cunyun MIN ; Heqiang LIU ; Feng ZHAN
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(12):-
Objetive To study the effect of Paeonol on PGI,TXA2,ET and NO in diabetic rats.Methods Streptozocin was used in dosage of 60 mg/kg on rats to make diabetic animal model.Defferent dosages of Paeonol were used on diabetic animal models.6-Keto-PGF1?,TXB2,ET and NO were tested after 30 days. Results Compared to the control group,6-Keto-PGF1?(pg/mL)of Paeonol groups increased from 89.75? 2.75,89.97?7.28,89.97?11.36 to 120.03?13.85,108.34?11.25,105.32?8.85 respectively;TXB2 (pg/mL)decreased from 157.64?10.36,156.64?11.35,153.33?19.40 to 124.46?18.67,136.40?18.15, 138.40?22.20 respectively;ET(pg/mL)decreased from 181.68?5.10,181.27?4.76,181.04?4.19 to 140.55?3.01,150.51?2.22,161.02?3.76.The change of 6-Keto-PGF1?,TXB2 and ET was related to the dosage of Paeonol.NO has no significant change.Conclusions Paeonol can decrease the ET and TXB2 in diabetic rats,and increase 6-Keto-PGF1?in diabetic rats.
6.Effect of 23 G minimally invasive vitrectomy without irrigation in cataract ultrasonic phacoemulsification and trabeculectomy of phakic malignant glaucoma
Zhan-Feng, WANG ; Chang-Qin, XU
International Eye Science 2016;16(10):1879-1882
AIM: To investigate the efficacy of 23G minimally vitrectomy without irrigation in cataract phacoemulsification and trabeculectomy of malignant glaucoma, and to analyze such compound operative procedures for phakic malignant glaucoma.
●METHODS:A total of 21 phakic malignant glaucoma patients (21 eyes) underwent anterior vitrectomy without irrigation by using 23G vitrectomy. During surgical course phacoemulsification with anterior and posterior continuous circular capsulorhexis, trabeculectomy combined with iridectomy would be completed. lntraocular pressure, anterior chamber depth changes and postoperative complications were observed after the operation.
●RESULTS:ln the three-month follow-up, intraocular pressures were reduced from ( 57. 18 ± 6. 18 ) mmHg to (16. 15 ± 2. 43 ) mmHg, there was statistical difference compared with pre - operation ( P < 0. 001 ). The preoperative anterior chamber depth (ACD) was (0. 88± 0. 25) mm, the postoperative ACD was (2. 44±0. 37) mm 3mo later, there were significant difference (P<0. 001). The best corrected visual acuity improved significantly, no serious postoperative complication appeared.
● CONCLUSION: The compound surgical method of anterior vitrectomy combined with phacoemulsifier and trabeculectomy can effectively treat phakic malignant glaucoma. Early diagnosis and early compound surgery may effectively reduce the intraocular pressure of malignant glaucoma.
7.Application of painless ward standardized pain management for patients with inguinal hernia after surgery
Qizhu FENG ; Haixia ZHAN ; Qi WANG
International Journal of Surgery 2017;44(3):178-181
Objective To investigate the effects of painless ward standardized pain management on pain control and postoperative recovery of patients with inguinal hernia after surgery.Methods From January 2015 to January 2016,44 cases of inguinal hernia in Department of General Surgery,First People's Hospital of Huainan,control group (22 cases) and observation group (22 cases) were retrospectively studied.The patients in observation group underwent painless ward standardized pain management and those in control group underwent traditional pain mnanagement model.Pain score after surgery,time for get out of bed after surgery,postoperative intestinal exhaust time,duration of night sleep,and satisfaction degree for pain-control were comparrd between two groups of patients.Results For pain score after surgery,the observation group 3 h after operation,postoperative 1 d,2 d pain score respectively (3.46 ± O.56),(2.72 ± O.21),(2.20 ± O.43) points,the control group 3 h after operation,postoperative 1 d,2 d pain score respectively (4.48 ± 1.52),(3.55 ± 0.40),(2.80 ± 0.40) points,there were significant difference between two groups (P < 0.05).For sleep time,the observation group on the day of surgery,postoperative 1 d,2 d sleep time respectively (5.23 ± 0.98) h,(6.57 ± 0.54) h,(7.50 ± 0.54) h,the control of sleep time of 2 d group on the day of surgery,postoperative 1 d,respectively (4.35 e 1.28) h,(5.17 ± 0.45) h,(6.72 ± 0.61) h,there were significant difference between two groups (P < 0.05).The satisfaction rate of pain control in the observation group was 86.3%,which was higher than that of the control group 50.0% (P < 0.05).The observation group first ambulation time,anal ventilation time,hospital stay were (10.5 ± 2.0) h,(16.8±2.1) h,(6.6±1.4) d,the control group for the first time,ambulation time,anal ventilation time,hospital stay were (15.9 ± 3.O) h,(22.6 ± 3.3) h,(7.5 ± 1.2) d,there were significant difference between two groups (P < 0.05).However,there was no difference between the two groups in the total cost of hospitalization.Conclusions Application of painless ward standardized pain management for patients with inguinal hernia after surgery can shorten time for get out of bed after surgery,postoperative intestinal exhaust time,prolong duration of night sleep,improve satisfaction degree for pain-control during hospitalization.
8.Drug Resistance of Pathogenic Bacteria from Blood Culture and the Distribution in Clinical Departments from 2012 to 2014
Acta Medicinae Universitatis Scientiae et Technologiae Huazhong 2017;46(1):84-89
Objective To analyze drug resistance of pathogenic bacteria from the blood culture and distribution in clinical departments,and to guide the rational clinical drug use.Methods We retrospectively analyzed 11 275 samples of blood cultures in The Central Hospital of Wuhan from 2012 to 2014.The blood specimens were cultured by VersaTREK(USA).The pathogenic bacteria were identified and their drug resistance was analyzed by BD-PHOENIX 100 automicrobiological identification systems(USA).Results Among the 11 275 blood cultures,636 bacterial strains were detected.The top four bacterial strains were Escherichia coli,Staphylococcus aureus,Klebsiella pneumonia and Enterococcus f aecium.A vancomycin-resistant Enterococcus faecium strain and a pandrug-resistant Klebsiella pneumoniae strain were detected.The top three clinical departments with distribution of pathogens were Gastroenterology Department,Nephrology Department and Intensive Care Unit (ICU).Pathogens isolated from ICU were evenly distributed.Conclusion Distributions of pathogenic bacteria in the blood culture are different in clinical departments.Identification of pathogenic bacteria and result of drug susceptibility can reduce use of broadspectrum antimicrobials and enhance antimicrobial de-escalation.
9.The Investigation of sodium ferulate on CPB-induced lung ischemia-reperfusion injury
Dongliang YU ; Feng ZHAN ; Jianjun XU
Chinese Journal of Thoracic and Cardiovascular Surgery 2003;0(04):-
Objective To study the protective effect of sodium ferulate (SF) on CPB-induced lung ischemia reperfusion injury (IRI) and discuss its possible mechanism. Methods 40 patients undergoing CPB were randomly divided into contral group(CCG, n=20 ) and SF group(SFG, n=20). In SFG, SF was injected (0.2 g in NS 150 ml) intravenously Bid for one week preoperatively. In CCG, SF was replaced by same volume of NS. The changes of TNF-?、IL-6、IL-8、SOD level in the CCG and SFG would be examined before operation, at 15min、30 min after aortic cross clamp(ACC) and 1 hour after operation. By the time of before ACC、15 min and 30 min after ACC was opened, blood samples were taken from the right and left atrium to examine the amount of neutrophils. Lung tissues were cut for pathological studies in 5 patients in each group randomly. Results At 15 min、30 min after ACC and 1h after operation TNF-?、IL-6、IL-8、SOD levels of 2 groups were significantly higher than that before the operation (P
10.Diagnosis and treatment of intrahepatic bile duct calculus by intraoperative choledochofiberscopy and B-ultrasonography
Shilin ZHAN ; Jianxiong CHEN ; Feng HUO
Chinese Journal of Minimally Invasive Surgery 2001;0(06):-
Objective To investigate the value of intraoperative choledochofiberscopy and B-ultrasonography for intrahepatic bile duct calculus. Methods After bile duct stone removal by routine instruments, choledochofiberscopy and B-ultrasonography were conducted for detecting and removing the residual cholelith in intrahepatic bile ducts. Results The incidence of residual cholelith was 29.8% (14 of 47) after stone removal by routine instruments, and it declined to 10.6% (5 of 47) ( ? 2=5.267, P