1.Research progress of ovarian cancer apoptosis related factor-Survivin and Smac
Journal of International Oncology 2015;(4):313-315
Survivin is the strongest member of the inhibitor of apoptosis protein(IAP)family. Smac is the second mitochondria-derived activator of cysteine proteases,which can promote apoptosis by combining with IAP. Abnormal expression of them is closely related with occurrence,development,treatment tolerance and prognosis of ovarian cancer. It is prompted that Survivin and Smac are expected to play important roles in the early diagnosis and targeted therapy of ovarian cancer.
2.Interpretation in American Institute of Ultrasound in Medicine practice guideline for the performance of neurosonography in neonates and infants (2014)
Dan QI ; Dan CHEN ; Xiaoyan MA ; Chaoxiang YANG ; Chunyi ZHANG
Chinese Journal of Applied Clinical Pediatrics 2016;31(12):894-895
This guideline was published by the American Institute of Ultrasound in Medicine,which has been developed to assist physicians performing sonographic studies of the brain in neonates and infants.Neurosonography should be performed only when there is a valid medical reason,and gain the necessary diagnostic information.Although it is not possible to detect every abnormality,adherence to the following guideline will maximize the detection of most abnormalities of the brain in neonates and infants that can be imaged with ultrasound.
3.Arthrolysis and a hinged external fixator for posttraumatic elbow stiffness
Chizhang LIANG ; Dan MA ; Yongxin YU
Chinese Journal of Postgraduates of Medicine 2013;36(17):20-22
Objective To explore the clinical effect of arthrolysis and a hinged external fixator for treatment of posttraumatic elbow stiffness.Methods From April 2007 to April 2012,26 cases of posttraumatic elbow stiffness patients were treated with arthr o lysis and a hinged external fixator after operation,and the effect was observed.Results After operation,26 patients were followed up for 15(8-24) months,the ranges of elbow joint motion increased from (42 ± 17) ° to (119 ± 17) ° after operation.There was significant difference (t =152.85,P< 0.05).The MEPS scores increased from (36 ± 13) points to (82 ± 14) points after operation,15 cases were excellent,5 cases were good,3 cases were fair and 3 cases were poor,the rate of excellent and good cases was 76.9% (20/26).Twenty-three cases (88.5%,23/26)elbow function improved.Postoperative infective complication occurred in 1 case,postponed incision healing occurred in 1 case and 1 patient had cubital nerve paralysis,the symptom disappeared after 3 months and the patient showed no instability in elbow joint.Conclusion Arthrolysis and a hinged external fixator can deep stabe the elbow and its specific position,allowing early rehabilitation to promote functional recover of the elbow.
4.Analysis of clinical and pathological features of 187 postmenopausal women with thickening endometrial
Ying CUI ; Linlin MA ; Dan ZHOU
Chinese Journal of Geriatrics 2012;31(7):596-599
Objective To investigate the clinical and pathological features of postmenopausal women with thickening endometrial. Methods Totally 187 patients with postmenopausal endometrial thickening by transvaginal B-ultrasound were divided into symptomatic group (n=104)and asymptomatic group (n=83).Their body mass index,age of menarche and menopause,history of menstruation and reproductive,application of estrogen,and hypertension and diabetes were collected.All the patients underwent hysteroscopy and biopsy procedures. Results There was no difference between two groups in body mass index [ (24.3 ± 3.2) kg/m2 vs.(23.3 ± 2.6) kg/m2,t =3.79,P =0.052]. The postmenopausal time of symptomatic patients in the group was shorter than the asymptomatic [ ( 14.6 ± 2.4) years vs.( 16.5 ± 2.9 ) years,t =4.12,P =0.039].The patients in the asymptomatic group were older than the patients in the symptomatic group [(68.1 ±4.8) years vs.(66.1± 5.5) years,F=3.89,P =0.046].The average endometrial thickness of patients in the asymptomatic group showed no difference compared with patients in the symptomatic group [(7.2 ±1.4) mm vs. (7.8 ± 2.0) mm,F=3.21,P=0.065]. There were 5 cases of endometrial adenocarcinoma,1 case of endometrial atypical hyperplasia,38 cases of endometrial polyp,25 cases of submucosal hysteromyoma,14 cases of proliferative phase endometrium in the asymptomatic group;while 8 cases of endometrial adenocarcinoma,1 case of endometrial stromal sarcoma,4 cases of endometrial serous papillary carcinoma,5 cases of endometrial atypical hyperplasia,47 cases of endometrial polyps,21 cases of submucosal hysteromyoma,2 cases of uterine empyema,8 cases of chronic inflammation of the endometrium, 8 cases of proliferative phase endometrium in the symptomatic group,respectively. Conclusions Most of endometrial thickness in postmenopausal women are benign lesions, mainly including endometrial polyps and submucous myoma, but endometrial cancer accounts for a certain percentage. Hysteroscopy is minimally invasive,safe and with specificity for the diagnosis and treatment of endometrial lesions.
5.Comparative study between clinical disease activity index and simplified disease activity index by assessing the activity of rheumatoid arthritis
Sumiao LIU ; Liyun ZHANG ; Dan MA
Chinese Journal of Rheumatology 2012;16(9):601-605
ObjectiveTo compare the clinical disease activity index (CDAI) and simplified disease activity index(SDAI) as well as disease activity score 28(DAS28) by assessing the activity of rheumatoid arthritis (RA) and to explore which one is better.MethodsTwo hundred RA patients were enrolled.Swelling joint counts (SJC),tenderness joint counts(TJC ),patient's and doctor's global assessment of disease activity based on visual analogue scale(PGA,PhGA),health assessment questionnaire(HAQ) were recorded and the erythrocyte sedimentation rate(ESR),C reaction protein (CRP) of each patient were tested.DAS28,CDAI,SDAI of all patients were calculated for all patients.Statistical analysiswas carried out by Pearson correlation for the association between DAS28 and the above parameters,as well as CDAI,and SDAI.We created 4 patient groups based on DAS28,CDAI and SDAI ranks and used kappa statistics to assess the level of overall agreement of different disease activity categories between any of the two indices above for individual patients.We assessed the discriminating validity using receiver operating characteristic(ROC) curve analysis to compare the ability of the CDAI and SDAI to discriminate betwecn patients with remission, low and moderate,high disease activity.ResultsOf all the patients,CDAI(17.2±11.1) and SDA[(19.1±11.6) were correlated with DAS28 (4.3±1.5),the correlation coefficients were 0.876,0.861 (P<0.05) respectively.CDAI and SDAI were correlated with HAQ (0.6±0.7),as well as DAS28.The correlation coefficients were 0.522,0.523,and 0.482(P<0.05).The Kappa of CDAI and SDAI was 0.777.The Kappa of CDAI and DAS28,SDAI and DAS28 were 0.482,0.394.The areas under ROC of CDAI and SDAI were 0.906,0.888 if DAS28 was used as the gold standard.ConclusionCDAI and SDAI as well as DAS28 can be used to assess the activity of RA and both are better correlated with HAQ than DAS28.Though there is no CRP in CDAI when compared with SDAI,CDAI has very goodoverall agreement with SDAI and the overall agreement of CDAI and DAS28 is better than SDAI and DAS28.In addition, CDAI is better in discriminating between patients with remission/low and moderate/high disease activity.So,CDAI is a simple,convenient,accurate,quick assessment tool and is suitable for daily application.
6.Expression of Skp2 and its Relationship with VEGF and MVD in Colorectal Carcinoma
Dan MA ; Li ZHANG ; Shaoyong XU
Chinese Journal of Gastroenterology 2016;21(6):340-343
Background:In recent years,the incidence and mortality of colorectal carcinoma have been increasing rapidly. Diagnosing and treating cancer at gene level have become a new effective approach. Aims:To investigate the expression of S-phase kinase-associated protein 2(Skp2)and its relationship with vascular endothelial growth factor(VEGF)and tumor microvessel density(MVD)in colorectal carcinoma. Methods:Thirty-five colorectal carcinoma patients from March 2014 to March 2015 at People’s Hospital of Hubei University of Medicine were enrolled. Fifteen para-cancerous tissue samples were served as controls. The expressions of Skp2,VEGF and MVD value were determined by immunohistochemical SP, and their relationships with clinicopathological characteristics were analyzed. Results:The expression of Skp2 in colorectal carcinoma was significantly higher than that in para-cancerous tissue( P = 0. 000),and was correlated with tumor differentiation and lymph node metastasis(P < 0. 05),but not with gender,age and TNM stage(P > 0. 05). Expression of VEGF and MVD value were significantly higher than those in para-cancerous tissue(P = 0. 019,P = 0. 002),and were correlated with lymph node metastasis and TNM stage(P < 0. 05). Expression of Skp2 was positively correlated with the expression of VEGF and MVD value in colorectal carcinoma( r = 0. 569,P = 0. 000;r = 0. 481,P = 0. 017 ). Conclusions:The abnormal high expression of Skp2 is involved in the angiogenesis of colorectal carcinoma. Skp2,VEGF expressions and MVD value may be served as important markers for malignancy degree of colorectal carcinoma.
7.Expression of a lysozyme from antheraea pernyi in pastoris and the effects of recombinant Ap-lysozyme on Streptococcus mutans
Dan WANG ; Weidong MA ; Huijuan YU
Journal of Practical Stomatology 2000;0(05):-
Objective: To construct the antheraea pernyi lysozyme(ApLZ) expression system using the methylotrophic yeast Pichia pastoris, to assay the antibacterial activity of the recombinant ApLZ against Streptococcus mutans. Methods:The ApLZ expression system was used in the expression and purity of Ap-lysozyme. The antibacterial activity of the recombinant ApLZ against Streptococcus mutans were assayed by using agar diffusion method. Results:Expression system of ApLZ was constructed using the methylotrophic yeast Pichia pastoris as a host. ApLZ was expressed correctly and secreted efficiently when the native signal sequence of ApLZ was used as secretion signal. The level of ApLZ expression in Pichia pastoris peaks at 96 h after the induction of sustaining 5 ml/L methanol. The molecular weight of the recombinant ApLZ is about 20 000. Conclusion:The recombinant ApLZ is active in inhibiting the growth of Streptococcus mutans.
8.Restraining effects of human growth hormone and TPN on stress response after gastrointestinal carcinoma
Min LIU ; Dan MA ; Jiamei XIANG
Journal of Third Military Medical University 2003;0(13):-
Objective To explore the mechanism of synthesis metabolism intensified by human growth hormone(GH) on the basis of total parenteral nutrition(TPN) for postoperative gastrointestinal carcinoma patients.Methods Totally 94 cases of postoperative gastrointestinal carcinoma patients were randomly divided into TPN group and TPN+GH group.The levels of TNF-?,IL-1,IL-6,CRP were detected on postoperative day 1,3 and 7.Results The levels of TNF-?,IL-1,IL-6,CRP of TPN+GH group were significantly lower than those of TPN group(P
9.THE DIFFERENTIAL SCREENING OF SERUM PROTEINS IN DIET-INDUCED OBESE AND OBESE-RESISTANT RATS
Dan ZHAO ; Weiwei MA ; Shuran WANG
Acta Nutrimenta Sinica 2004;0(05):-
Objective:To explore the difference in susceptibility to high-fat diet induced obesity in rats,as well as the changes of serum proteins. Method:Forty male SD rats were divided into basic group and high-fat diet group randomly. After 5w feeding DIO(diet-induced obesity)and DIO-R(diet-induced obesity resistance) rats were selected according to their body weight gain. The rats were sacrificed and the changes of serum proteins were screened using WCX2 proteomic chips made by American Ciphergen Biosystems. Results: DIO rats were significantly different from DIO-R rats in body weight,body-fat ratio,blood glucose and blood lipids. At the molecular weight range between 2 to 100 ku,the proteins with molecular weight of 7 945 and 9 513 were significantly expressed differently between DIO and DIO-R rats,and the proteins with molecular weight of 4496, 6152, 6267 were significantly expressed differently between DIO-R and control rats (the rats were fed basic diet). Conclusion:Different susceptibility to DIO or DIO-R was found in SD rats when they were fed high-fat diet. The differentially expressed serum proteins between DIO rats and DIO-R were observed,which might provide the basis for further isolation,purification and identification of these proteins.
10.Cardioprotective effects of sevoflurane postconditioning on surgery patients undergoing cardiopulmonary bypass with diabetes mellitus
Dan LUO ; Weifang XU ; Haiping MA
The Journal of Practical Medicine 2017;33(11):1846-1849
Objective To investigate the Cardioprotective effects of sevoflurane postconditioning on surgery patients undergoing cardiopulmonary bypass with diabetes mellitus ,in order to provide theoretic basic for clinical practic. Methods 180 patients of undergoing cardiopulmonary bypass sugery were divided into 3 groups:A group:64 patients undergoing heart valve replacement with Type II diabetes. B group:64 patients Pa-tients undergoing heart valve replacement without diabetes ,the group A and B were treated by sevoflurane post-conditionging for 10 minutes before the end of cardiopulmonary bypass. C group:60 patients undergoing heart valve replacement without diabetes,no sevoflurane postconditionging;Three groups of patients detect perioperative tro-ponin T and Creatine Kinase Isoenzyme-MB ,observed and following up the occurrence of postoperative com-plications. Results CK-MB and cTnT were compared at 8 and 24 hours after operation:two biochemical indi-cators of group A and C at different time points after operation were significantly higher than those in group B (P < 0.05),With significant statistical difference , The number of patients with heart failure and malignant arrhythmia in group A and C was higher than group B(P < 0.05),Differences in 30 day mortality and other clinical data between the three groups were not statistically significant. Conclusion Sevoflurane postconditionging has significant myocardial protection effect for patients undergoing valve replacement surgery without diabetes , however ,the myocardial protective effect of patients who undergoing valve replacement surgery with diabetes was weakened.