1.Multivariate survival analysis model of protate cancer with a Cox model
Ting LIU ; Xiaoying WANG ; Yi WANG
Journal of Peking University(Health Sciences) 2004;0(02):-
Objective:To study the correlations between the clinical examinations and latent prostate cancer in old males with abnormal PSA values and provide them with prospective and reasonable programs.Methods:The clinical data of 85 old male adults with abnormal PSA values were collected from three to five years.The clinical examinations about prostate cancer patients were evaluated by Cox multivariate survival analysis.Results:During the follow-up period,clinical prostate cancer was detected in 12 of the 85 patients and the overall proportion was 14.1%(12/85).Multivariate analysis revealed that amplification of PSA,MR examination,PSA density,ultrasound,age,digital rectal examination had different relative risk values,which were 4.661(P=0.022),4.060(P=0.022),3.607(P=0.219),1.019(P=0.982),1.001(P=0.987) and 0.566(P=0.487),respectively.The amplification of PSA and MR examination showed statistical significance(P
2.Risk factors of surgical site infection in patients with colorectal cancer
Guangzhao YI ; Suxin LUO ; Xihan WANG ; Ting YU ; Yingfu WANG
Chinese Journal of Infection and Chemotherapy 2015;(1):57-59
Objective To evaluate the incidence of surgical site infection (SSI)in patients with colorectal cancer and identify the risk factors of SSI.Methods A total of 392 patients who underwent colorectal cancer resection at the First Affiliated Hospital of Chongqing Medical University between September 2012 and September 2013 were included and analyzed in terms of the presence of SSI.SSI risk factors were identified by both univariate and multivariate analysis.Results The overall incidence of SSI was 23.0%.Univariate analysis showed that duration of operation above 75 th percentile,colostomy,surgical procedure, type of surgical incision,and American Society of Anesthesiologists (ASA)score were significantly associated with higher risk of SSI (P <0.05).Binary logistic regression suggested that duration of operation above 75 th percentile (P = 0.000,OR =3.017),colostomy (P =0.008,OR=2.642),Contaminated incision (P =0.016,OR=3.311)and laparoscopic surgery (P =0.016,OR=0.523)were significantly different in terms of presence or absence of SSI.Conclusions Duration of operation above 75th percentile,colostomy and contaminated incision are independent risk factors,while laparoscopic surgery is a protective factor for SSI in patients with colorectal cancer.
3.Effect of bag-1 expression on the occurrence of breast cancer and its 5-year survival rate
Jun YUN ; Ling WANG ; Ting WANG ; Rui LING ; Jun YI
Chinese Journal of Tissue Engineering Research 2005;9(22):248-249
BACKGROUND: Bag-1 is a multifunctional and anti-apoptotic gene. Its anti-apoptotic ability is enhanced when binding to bcl-2 to form a complex.Now it is considered as a predictive biomarker for the early diagnosis of breast cancer. However, whether it is useful in the assessment of the prognosis of breast cancer is still elusive.OBJECTIVE: To explore the expression of bag-1 in breast cancer and its role for prognosis.DESIGN: A controlled study with breast cancer, benign breast tumor and normal breast tissues as subjects.SETTING: The Vascular and Endocrine Surgery Department of Xijing Hospital of the Fourth Military Medical University of Chinese PLA.MATERIALS:Totally 100 breast cancer specimens were obtained form May 1995 to May 2000. Ten benign breast tumor and 10 normal breast tissues were used as control. All the specimens were paraffin-embedded and came from the Pathological Department of Xijing Hospital Affiliated to Fourth Military Medical University of Chinese PLA.METHODS: Immunohostochemical strept avidin-biotin complex(SABC) method was adopted to detect bag-1 expression in these specimens.pression levels of bag-1.RESULTS: The positive expression rate of bag-1 in breast cancer (85%) was significantly different form those of benign breast tumor (10%) and normal breast (10%) (χ2= 29.98, P = 0.00). While the positive expression rates in breast cancer of different stages (stage Ⅰ, stage Ⅱ and stage Ⅲ ) were 88%, 82% and 88%, respectively, which has no significant difference (χ2 = 0. 61, P = 0.75) . In duct carcinoma, lobular carcinoma and special carcinoma, bag-1 positive expression rate was 86%, 85% and 80%,which was also no significantly different (χ2 =0.16, P =0.95). In the 94followed patients, the 5-year survival rate of positive bag-1 expression was 79% and that of negative bag-1 expression was just 9%. The difference was significant (χ2 = 0. 07, P = 0.04).CONCLUSION: High bag-1 expression exists in breast cancer and its level is not associated with the clinical stages or pathological types of the cancer.Therefore, bag-1 may be used as a predictive marker for the prognosis of breast cancer.
5.Advance in Analytical Methods for Phthalate Esters in Air
Ting SHEN ; Xiao-Yi WANG ; Xing-Tao LIN ; Al ET ;
Journal of Environment and Health 2007;0(09):-
Phthalate esters belong to the group of environmental hormones,which are ubiquitous environmental pollutants and they can damage the human health through breathing to get into the body.The recent researches on the analysis of phthalate esters in the air such as sampling,pretreatment and determination were reviewed and some related issues were discussed in the paper.It would be reference for the further study of phthalate esters.
6.Construction of tissue engineered adipose using human adipose stem cells with chitosan-modified silk fibroin
Ting KANG ; Gang WANG ; Yi LIU ; Gangqiang LIU
Chinese Journal of Tissue Engineering Research 2014;(39):6323-6328
BACKGROUND:Based on the original advantages of silk fibroin, positive charged water-soluble chitosan modified silk fibroin is modified on surface and could improve celladhesion on the scaffolds. OBJECTIVE:To verify the biocompatibility of chitosan-modified silk fibroin with human adipose-derived stem cells (hADSCs), and feasibility of constructing tissue engineered adipose in vitro. METHODS:The hADSCs at passage 3 were seeded on chitosan-modified silk fibroin at the concentration of 1×107/L, as the experiment group;at the same cellconcentration, hADSCs were seeded in 96-wel plates as the control group. MTT tests were performed to evaluate the adhesion, growth and proliferation of hADSCs on chitosan-modified silk fibroin. Then hADSCs were implanted on the chitosan-modified silk fibroin scaffolds at the concentration of 1×109/L. The hADSCs seeded onto chitosan-modified silk fibroin complexes were respectively cultured with adipogenic differentiation medium and ordinary high-glucose DMEM. The complexes were stained with oil red O, and detected with RT-PCR after cultured 14 days. RESULTS AND CONCLUSION:The hADSCs adhered to and proliferated on the scaffolds. After cultured with adipogenic differentiation medium for 14 days, oil red O staining demonstrated that there were amount of mature adipocytes on the scaffold. The peroxisome proliferator activated receptorγ2 was positively expressed. The chitosan-modified silk fibroin possessed excellent biocompatibility in vitro. The co-cultured hADSCs could be induced to mature adipocytes successful y.
7.Cerebrolysin for patients with HIE:a systematic review
Yongyao MAI ; Yi LIU ; Guohua CHENG ; Lin CHEN ; Ting WANG
Chinese Journal of Biochemical Pharmaceutics 2017;37(3):310-315,319
Objective Systematic evaluation of cerebrolysin in the treatment of neonatal hypoxic -ischemic encephalopathy.Methods Computer search Cochrane Library, EMBase, PubMed, Chinese Journal Full-text Database (CNKI), Chinese Biomedical Literature Database (CBM), Wanfang Database ( each database retrieval time from its creation to May 2016 ) About cerebrolysin Randomized controlled clinical trial of neonatal hypoxic -ischemic encephalopathy.According to the inclusion and exclusion criteria of the literature, the methodological quality of the included research was evaluated and the data were extracted.Metadata was analyzed by RevMan 5.3 software.Results A total of 41 RCT patients were enrolled, with a total of 3695 patients, the experimental group was 1932 cases, the control group was 1763 cases.Meta analysis showed, the efficacy of cerebrolysin in the treatment of neonatal hypoxic-ischemic encephalopathy was significantly higher than that in the control group [OR=3.85, 95% CI (3.15,4.70), P<0.000001], for the impact of clinical symptoms, the number of primitive reflexes of neonatal hypoxic-ischemic encephalopathy in the treatment group was significantly higher than that in the control group [MD=-1.22, 95% CI ( -2.06,-0.38), P=0.004], muscle tension recovery days[MD=-1.69, 95% CI ( -1.80,-1.58), P<0.00001], conscious state recovery days[MD=-1.32, 95% CI ( -2.25,-0.40), P=0.005], seizure recovery days [MD=-2.36, 95% CI ( -3.70, -1.03), P =0.0005], and other indicators were shorter than the control group, the difference between the experimental group and the control group was statistically significant.Conclusion Cerebrolysin havean effective in treating HIE.
8.Clinical analysis on sympathetic skin response in cerebral thrombosis with no more than 60 years old
Liyan SUN ; Yi HAN ; Zhuoer WANG ; Ting ZHAO
Chinese Journal of Postgraduates of Medicine 2010;33(15):6-8
Objective To discuss the change of sympathetic skin response (SSR) in patients with cerebral thrombosis with no more than 60 years old. Method SSR was measured in four positions of the center of hand palm and foot palm of 40 normal controls ( control group ) and 56 cerebral thrombosis patients (cerebral thrombosis group) no more than 60 years old. Results SSR wave shape was all educed in control group,but 21 limbs (21/224,9.4%) were not educed in cerebral thrombosis group, SSR abnormality was 80 limbs (35.7% ). SSR's latency in cerebral thrombosis group was obviously prolonged as compared with control group,and the amplitudes of SSR of upper limps and lower limbs had significance between two groups (P< 0.05 or < 0.01). There were serious abnormity within 3 days to 2 months after cerebral thrombosis. Conclusion SSR is a sensitive diagnosis method for the autonomic neuropathy of cerebral thrombosis patients of no more than 60 years old.
9.Effects of different extraction methods on yield of Smilax glabra polysaccharides and antioxidant activity
Ting XIE ; Jingwen ZHAO ; Min WANG ; Jianfeng YI
International Journal of Traditional Chinese Medicine 2015;(11):1010-1014
Objective To explore the effects of different extraction methods on yield of Smilax glabra polysaccharides and antioxidant activities. Methods Crude polysaccharides were extracted by using cold water, hot water, NaOH aqueous solution, and EDTA?2Na aqueous solution . Antioxidant activities of Smilax glabra polysaccharides were compared by the methods of scavenging superoxide anion radical , scavenging hydroxyl radical or reducing power. Results Yield of crude cold water-soluble polysaccharides, crude boiling water-soluble polysaccharides, crude alkali-soluble polysaccharides and crude acid-soluble polysaccharides were 0.31%, 1.1%, 10.8 %, 2.0%, respectively. Polysaccharides by using four kinds of different extraction methods had strong scavenging superoxide anion radical power; crude cold water-soluble polysaccharides, crude boiling water-soluble polysaccharides , crude acid-soluble polysaccharides had strong scavenging hydroxyl radical and reducing power , the capacity increased with the increasing concentration of Smilax glabra polysaccharides; the scavenging hydroxyl radical and reducing power capacity of crude alkali-soluble polysaccharides is very poor. Conclusion Polysaccharides by using four kinds of different extraction methods have certain antioxidant activity, the antioxidant capacity to scavenge free radical in vitro showed positive correlation with the concentration of Smilax glabra polysaccharides, considering the yield of polysaccharides, EDTA?2Na aqueous solution extraction method is the best.
10.FcγRIIA H/H131 genotype is associated with pneumonia:a meta-analysis
Min WANG ; Xiaodong WU ; Ting WU ; Xin SU ; Yi SHI
Chinese Journal of Infection and Chemotherapy 2015;(5):415-420
Objective To investigate the association between FcγRIIA H/H131 genotype and pneumonia through a comprehensive meta‐analysis .Methods Databases including PubMed ,Embase ,and China National Knowledge Infrastructure (CNKI) were searched with such terms as “FcgammaRIIa” ,“FCGR2A” ,“Fcgamma receptor IIA” ,“CD32” and“pneumonia” ,“polymorphism” ,“variant” ,“genotype” ,“allotype” ,as well as“pneumonia”and“polymorphism”in Chinese to identify relevant studies .Two reviewers independently extracted the data .Crude odds ratios (ORs) and corresponding 95%confidence intervals (CIs) were estimated .Heterogeneity across studies and publication bias were evaluated and sensitivity analyses were performed .Results Six case‐control studies were finally included in this analysis .The results indicated an association between FcγRIIA H/H131 genotype and pneumonia susceptibility (OR 1 .67 , 95% CI 1 .11‐2 .51 ) , but no significant association with R/R genotype(OR 1 .09 ,95% CI 0 .85‐1 .40) or H/R genotype(OR 0 .81 ,95% CI 0 .60‐1 .19) . Statistically significant heterogeneity was found during data pooling (I2 was 75 .4 % ,51 .8% and 71 .9% ) .Sensitivity analyses further indicated the reliability of the study .Egger′s and Begg′s tests identified publication bias in R/R genotype ,but not in H/H or H/R genotype .Conclusions We preliminarily find an association between FcγRIIA H/H131 genotype and pneumonia susceptibility .