1.Progresses in the Studies of Structure-activity Correlation and Detection Methods of Medicinal Fungal ?-(1,3)-D-glucans
Chun-Feng CHEN ; Xiao-Tong YANG ;
Microbiology 1992;0(05):-
?-(1,3)-D-glucan is a core structure of many bioactive fungal polysaccharides. It has drawn intensive attentions in recent because of its multiple bioactivities, particularly the immunomodulatory and antitumorous actions. In this review, we introduced the studies of structure-activity correlation of these ?-(1,3)-D-glucans, particularly the contributions of main backbone, branch degree and residues, molecular weight and conformation to the activities. We also summarized the recent progress in the detective methods for both quantitation and qualification using limulus G factor assay,galactosyl ceramide ELISA and etc.
3.Concordance of endoscopic grading and scoring systems for inflammatory bowel diseases
Jun SHEN ; Zhihua RAN ; Jinlu TONG ; Xiang CHEN ; Shudong XIAO
Chinese Journal of Digestive Endoscopy 2008;25(5):239-244
Objective To assess the agreement of different endoscopy grading or scoring systems for inflammatory bowel diseases(IBD)including ulcerative colitis(UC)and Crohn's disease(CD).Methods A standardized table was prepared based on the searches for endoscopic grading or scoring systems on Medline and Chinese Biomedical Database,the data of 80 patients with UC and 31 with CD.who underwent colonoscopy in Shanghai Renji hospital from June 2006 to February 2007,were evaluated with each system by two physicians independently.Data were analyzed with SPSS 13.0.Results Six endoscopic grading and scoring systems of UC and three of CD were included for evaluation.For the systems of UC and CD,Kendall's coefficients of concordance were 0.71(P<0.01)and 0.34(P<0.01),respectively.There was no significant differenee between every two systems for UC.Nonetheless.Spearman's correlation coefficient between Chinese Grading System of Crohn's Disease(CGSCD)and Crohn's Disease Endoscopic Index of Severity(CDEIS)was 0.32(P=0.08).Significant differences in frequencies were detected in endoscopic systems for UC by Kruskal Wallis test(P<0.01).Conclusion There is satisfactory concordance among the endoscopic grading and scoring systems of UC,while CGSCD needs further improvement.Furthermore,Jeroen elassifieation inclines to severe category,while modified Baron scale tends to be a mild one.
4.Establishment and evaluation of adjuvant-induced arthritis animal model by Mtb in Sprague-Dawley rats
Li TONG ; Zenghui XING ; Yuyao CHEN ; Dan XIAO ; Li GAN
Chinese Pharmacological Bulletin 1987;0(02):-
Aim To establish and evaluate the simple and effective animal model of rheumatoid arthritis in SD rats induced by heat-killed mycobacterium tuberculosis H37Ra(Mtb).Methods SD rats were immunized s.c.at the base of the tail with Mtb(1 mg/rat) in mineral oil,and then body weight,blood routine,clinical signs of arthritis were observed regularly.And also hind paw volume in SD rats with AA was tested.Meanwhile,T-lymphocyte subset was determined by flow cytometry in peripheral blood,the level of TNF-?in serum and IL-1 and IL-6 and vascular endothe-lial growth factor(VEGF) in joint tissue were tested by ELISA.The ankle pathological change and radiographic evidence of the hind paws of SD rats were observed to evaluate the AA model effects and availability in SD rats.Results When compared with normal control rats,the total number of white blood cells,platelets and monocytes in peripheral blood and ratio of CD4/CD8 was markedly raised after immunization with Mtb.But body weight of model rats was significantly low from day 14 to 28 after injection of Mtb.The inflammatory arthritic lesions such as edema and erythema in the paws appeared after 9~10 d.The peak of inflammation was 14~16 d.The level of TNF-?in serum and IL-1,IL-6 and VEGF in joint tissue was significantly higher in SD rats with Mtb than that in normal control rats at d 28.The histopathological examination revealed cellular infiltration,synovial and cartilage hyperplasia in ankle joints of SD rats.Conclusions The model induced by Mtb in SD rats is more similar in clinical characterization of rheumatoid arthritis in human being.It is a more efficient and simpler manipulative procedure for screening of new anti-arthritis drugs and experimental studying of anti-rheumatoid arthritis.
5.The Management of Pancreatic Injuries During Laparoscopic Urologic Surgery
Tong CHEN ; Dale LIU ; Kefeng XIAO ; Zengqin LIU
Journal of Medical Research 2006;0(05):-
Objective To summarize the management experiences of pancreatic injuries during laparoscopic urologic surgery.Methods From June 2003 to August 2008,395 laparoscopic operations for upper urinary or adrenal diseases were performed.4 cases of pancreatic injuries which all occurred in left side introperiotoneal procedures were identified with the incidence of 1%.2 men and 2women were involved with the mean age of 45.3(range 32~76y).2 injuries occurred during left radical nephrectomy and 2 during left adrenalectomy.All the injuries located at tail of pancreas with transaction injuries in 2 cases,and mild laceration in 2 cases.Only 1 case had received open surgery for pancreatic debridement,another 3 cases had received clamp and endo-GIA occlusion laparoscopically with local styptic powder aspersing and drainage.Absolute diet,gastrointestinal decompression,,transvenous-use of Somatostatin and hyperalimentation were given routinely.Results The mean blood,urine and drainage fluid diastase that were(648?136)U、(1278.6?368.4)U and(1368.5?428.2)U respectively elevated in all 4 cases postoperatively.Only 1 case had high fever and blood WBC after operation.The mean drainage and hospital stay was 14.2 and 24.6 days.No sequelae was found.Conclusion The tail of pancreas is the most predilecting location of pancreatic injury in laparoscopic urological surgery.The key of ensuring a good prognosis is early detection and suitable management.A severe laceration of the main excretory pancreatic duct need a open surgical management,conservative managements are suitable for a small tear and mild contusion of pancreas.
6.Study on the coagulation changes in type 2 diabetes patients
Tong ZHENG ; Chun XIAO ; Jun HE ; Nianzu CHEN ; Hongbin LIU
Chinese Journal of Laboratory Medicine 2001;0(05):-
Objective To investigate the variation of coagulation markers and its clinical value in type 2 diabetes patients. Methods The plasma levels of von Willebrand factor: antigen (vWF: Ag), thrombomodulin (TM), prothrombin fragment 1+2 (F 1+2 ) and P selectin were measured by ELISA in 65 patients with type 2 diabetes (including 33 patients with vascular complication) and 38 healthy people. Results The plasma level of vWF:Ag, TM, F 1+2 and P selectin in group of type 2 diabetes were significantly higher than that of normal controls ( P
7.Evaluation on slide review criteria for XE-2100 hematology analyzer
Xiao-Jian CHEN ; Xiao-Ou WANG ; Mian-Mian LI ; Xiao-Tong HUANG ; Li-Dan ZHU ;
Chinese Journal of Laboratory Medicine 2001;0(04):-
Objective To find a proper way for accurate results on completing blood counts.Methods Based on the results from automatic hematology analyzer XE-2100,set up the criteria for blood cell microscopic examination.1368 blood specimen were detected and the results were analyzed according to the criteria.Statistics on the data were made to evaluate the accordance between warnings of analyzer and manual examination,likewise the reliability of the criteria.Results Comparing with microscopic examination,analyzer warning on low PLT has good accordance,Kappa value was 0.95,U value was 35.19,P
9.Expression of NF-?B,ICAM-1 and COX-2 in gastric carcinoma and their clinical significance
Qiang TONG ; Guobin WANG ; Xiaoming LU ; Yong XIAO ; Xiaogang SHU ; Kaixiong TAO ; Daoda CHEN
Chinese Journal of General Surgery 2001;0(10):-
Objective To explore the effect and clinical significance of expression of nuclear factor-?B((NF-?B)),ICAM-1 and COX-2 on the occurrence and metastasis of gastric carcinoma.Methods The(expression) of NF-?B,ICAM-1 and COX-2 in 142 patients with gastric carcinoma was examined by(immunohistochemical) SP technique.The adjacent gastric tissue(30 cases) served as a control group.Results The expression of NF-?B was 62.0% in gastric carcinoma tissue,much higher than that of the control group(P
10.Outward versus inward placement in Shang Ring circumcision for phimosis and redundant prepuce in adult men: analysis of 527 cases.
Sheng-Tao XIE ; Guang-Yu CHEN ; Qiao-Hong WEI ; Xiao-Tong LIU ; Lin JIAO ; Yao TANG
National Journal of Andrology 2014;20(4):325-328
OBJECTIVETo observe the clinical effects of two different circumcision procedures with the Shang Ring and compare their advantages and disadvantages.
METHODSA total of 527 adult males with phimosis or redundant prepuce underwent Shang Ring circumcision by conventional outward replacement (n = 254) and inward placement (n = 273), respectively. We observed the in-ring nocturnal pain, complications, ring-removal pain, degree of edema, recovery time, and patients' satisfaction after surgery, and compared them between the two groups.
RESULTSCompared with the conventional outward placement (5.9%) of the Shang Ring, the inward placement method showed the advantages of mild in-ring nocturnal pain, a low complication rate, significantly reduced ring-removal pain, and mild edema, but exhibited longer healing time.
CONCLUSIONIn Shang Ring circumcision for phimosis and redundant prepuce in adult males, each of the outward and inward placement methods has advantages and disadvantages of its own, but the latter is more advantageous and feasible.
Adult ; Circumcision, Male ; adverse effects ; instrumentation ; Edema ; etiology ; Foreskin ; abnormalities ; surgery ; Humans ; Male ; Pain, Postoperative ; Patient Satisfaction ; Penile Diseases ; etiology ; Penis ; abnormalities ; surgery ; Phimosis ; surgery ; Prostheses and Implants ; Wound Healing