1.Curative efficacy of buyang huanwu decoction in treating patients with Takayasu arteritis at active stage and its improvement on vascular endothelial injury
Chinese Journal of Biochemical Pharmaceutics 2017;37(4):158-160
Objective To investigate the curative efficacy of buyang huanwu decoction in combination with cyclophosphamide in treating patients with Takayasu arteritis(TA)at active stage and its improvement on vascular endothelial injury.Methods 88 patients with TA at active stage who received therapy in The Hospital of Beijing Armed Police Corps from January 2015 to April 2016 were selected as research objects.According to therapeutic schemes,those patients were divided into the control group(n=42)and the observation group(n=46).The control group was given cyclophosphamide,while the observation group was given cyclophosphamide in combination with buyang huanwu decoction.Then,the total therapeutic efficacy ratio,laboratory-related indices and indices of vascular endothelial injury were compared between the two groups.During the treatment,incidence of adverse reactions were compared.Results The observation group had a total therapeutic efficacy ratio of 89.1%,which was statistically higher than that of 71.4%in the control group(P<0.05).After the treatment,in comparison with the control group,laboratory-related indices of erythrocyte sedimentation rate(ESR),C reactive protein(CRP)and vascular endothelial injury indices of vascular endothelial growth factor(VEGF),endothelin-1(ET-1)in the observation group were statistically lower(all P<0.05).During the treatment,the incidence of adverse reactions in the observation group was 26.1%,which was statistically same with that of 21.4%in the control group.Conclusion Cyclophosphamide in combination with buyang huanwu decoction is effective for patients with TA at active stage with a high total therapeutic efficacy ratio.And it can significantly improve laboratory-related indices and vascular endothelial injury without increasing incidence of adverse reactions.
2.Research progress of epigenetics in B cell lymphoma
Journal of Leukemia & Lymphoma 2015;24(5):317-320
As an important component of functional genomics,epigenetics is a subdiscipline within genetics and refers to heritable changes in gene expression without any alteration in DNA sequence,including DNA methylation,histone modification,chromatin remodeling and microRNA (miRNA).Epigenetic regulation plays a crucial role on the development of B-cell lymphomas,as it has been reported that perturbation of epigenetic pattern and mutations in epigenetic mechanisms are frequent events in B-cell lymphomas.This review summarized the research progress on DNA methylation,histone modification and miRNA as well as their roles in the development,treatment and prognosis of B-cell lymphomas.
3.Application of robotic surgery in otolaryngology-head and neck surgery
Yanyan NIU ; Xingming CHEN ; Zhiqiang GAO
Basic & Clinical Medicine 2006;0(05):-
Robotic Surgery is a novel minimally invasive surgery which is advanced from the endoscopic surgical techniques.This new technique has a promising future to be applied in clinics because of the distinct and compelling advantages compared with the traditional endoscopic surgery,including true three-dimensional endoscopic vision,increased freedom of movement of instruments and tremor filtration.We review the potential applications,advantages,limitations of the da Vinci Surgical System in otolaryngology.
4.Treatment outcome evaluation of different mandibular advancements using oral appliance to treat obstructive sleep apnea and hyponea syndrome:a systematic review
Yanyan MA ; Jingjing ZHANG ; Xuemei GAO
Journal of Peking University(Health Sciences) 2017;49(4):691-698
Objective: To evaluate the polysomnology results along with mandibular titrated advancement using oral appliance to treat obstructive sleep apnea and hyponea syndrome(OSAHS).Methods: Several electronic databases (PubMed, Embase, Cochrane Library, CNKI, VIP, and Wanfang) were systematically searched up to September 2015.There was no restriction of language or source of information.All randomized clinical trials (RCT) and before-after trials (BAT) comparing at least two different mandibular advancements were included.Two independent reviewers selected the studies, extracted data and evaluated risk of bias by quality assessment.Data were pooled using a fixed-effects model, and the summary effect measure was calculated by risk ratio (RR) and 95%CI.Meta-analysis was performed using RevMan 5.3 software.Results: Two RCTs and five BATs were included in the review.Among the five BATs, two of them were randomized, while the other three were not.Outcomes including apnea hypopnea index (AHI), oxygen desaturation index (ODI), success rate (reduction of AHI or ODI >50%), normalization rate (AHI or ODI<10/h) were assessed in this review.Based on the trial design and quality assessment, four studies were included for meta-analysis.No significant difference in the success rate was found between the group with 50% of the maximal mandibular advancement (MMA) and the group with 75% of MMA [I2=0%, RR=0.93, with 95%CI (0.80, 1.09)].No significant dif-ference in the normalization rate was found between the 50% of MMA and 75% of MMA groups [I2=45%, RR=0.85, with 95%CI (0.68, 1.06)].Subgroup analysis displayed that the severity of OSAHS before treatment was a potential factor affecting the normalization rate.Conclusion: Based on current available evidence, the success rate and normalization rate for treating OSAHS in the patients with 75% MMA were not found to be significantly higher than those with 50% MMA.Due to small simple size in this meta-analysis, the results of the present study should be interpreted with caution.Further prospective studies are needed to strengthen the evidence.
5.The expression of FHIT and the relativity with cigarette in NSCLC
Jin GAO ; Yanyan GUO ; Xiuxia LI
Chinese Journal of Primary Medicine and Pharmacy 2006;0(01):-
Objective To investigate the role of FHIT in NSCLC and the relativity between FHIT and cigarette.Methods 81 cases of NSCLC and 7 cases of the nomal lung tisses were examined for FHIT by immunochemical(S-P).Results The postive expression rates of FHIT were significantly lower than those in nomal lung tisses(P
6.An analysis of 49 cases of patients with sysmetic lupus erythematosus and pregnancy
Yanyan GAO ; Hua YE ; Yanqiu GUO ; Meiying LIANG ; Shi CHEN
Chinese Journal of Rheumatology 2012;16(8):553-556
Objective To investigate the pregnancy opportunity and outcome of patients with sysmetic lupus erythematosus (SLE).Methods We carried out a retrospective analysis of the clinical information of patients who suffered from SLE complicated with pregnancy and were hospitalized to People's Hospital of Peking University from December of 1992 to February of 2012.Chi-square test were used for statistical analysis.Results Forty-nine cases of patients with SLE complicated with pregnancy had 52 pregnancies in total.In 27 cases of planned pregnancies,24 cases(89% )resulted in live births and 5 cases( 18% ) had flares during pregnancy.Of the 24 live births,3 cases( 12%)were premature deliveries and 4 cases(17%) had low birth weight infants.In 25 cases of unplanned pregnancies,12 cases (48%) resulted in live births and 20 cases (80%) had flares during pregnancy.Of the 12 live births,6 cases(50% ) were premature deliveries and 6 cases (50%) were low birth weight infants.The patients in the planned pregnancy group tended to have flares during pregnancy more frequently than those in the unplanned group (P<0.01),the former were more likely to have live births than the latter (P<0.01) and were less likely to have premature delivery (P<0.05).Conclusion Patients with SLE should have planned pregnancy and need collaborative supervision of both rheumatology and immunology department and obstetric department to improve live birth rate,decrease premature delivery and the activity of SLE during pregnancy.
7.Comparison of different programs on training postgraduate students with professional degree in traditional Chinese medicine
Yanyan MENG ; Yanshu PAN ; Tonghua LIU ; Zhuye GAO
International Journal of Traditional Chinese Medicine 2017;39(9):836-840
The study used questionnaires to investigate clinical TCM master degree students who enrolled in the year of 2011 and 2012 about the implementation effect of training plan before and after standardization of resident training. The results showed that a lot of students in the year 2011 and 2012 were satisfied with their training plan and training mode. However, the ability of clinical skills and academic research improved much higher after standardization of resident training among the students in 2012. The study showed that our education training plan met the training goal and reflected achievements in the cultivation of medical master degree of TCM. The training plan and training mode were higher satisfied for the students in the year 2011 and 2012. The conception of tutor, training target, the relationship between clinical skills and scientific research should be improved in future.
8.Combined dysmetabolism and risk factors of elevated serum alanine aminotransferase
Annan LIU ; Ling ZHU ; Yanyan ZHAO ; Yuehua SONG ; Jianping GAO
Chinese Journal of Health Management 2010;04(5):268-271
Objective To investigate the prevalence of elevated serum alanine aminotransferase ( ALT) and ALT-related dysmetabolism and risk factors. Methods A total of 12 789 adult participated,with no hepatitis B virus infection or alcohol over-intake, received health check-up, including blood pressure measurement, blood glucose and lipid profile test, liver function evaluation and ultrasonography. The subjects were then assigned into two groups according to the serum level of ALT. Metabolic composition was compared between the two groups. Results The prevalence of elevated ALT activity was 8.69%. The waist circumstance,body mass index (BMI) ,systolic blood pressure (SBP) ,diastolic blood pressure (DBP) ,total cholesterol (TC) ,triglyceride (TG) , low-density lipoprotein cholesterol (LDL-C) , urine acid (UA) , fasting blood glucose (FBG) ,HbAlc,total bilirubin (TBIL) ,-y-glutamyltransferase (GGT) ,alkaline phos-phatase ( ALP) of the elevated ALT group were significantly higher than those of the normal ALT group. However,age and high-density lipoprotein cholesterol ( HDL-C) in the elevated ALT group were lower than those in the normal ALT group ( P < 0. 05 ) . The occurrence of overweight, obesity, hyperlipidemia, impaired fasting glucose,diabetes, increased DBP, hyperuricacidemia and fatty liver in the elevated serum ALT group was significantly more than that in the normal ALT group ( P < 0. 05 ) . Multiple logistic regression analysis demonstrated that fatty liver, DBP, BMI.TC, HbAlc were risk factors of elevated serum ALT. Conclusion Non-alcoholic fatty liver disease, lipid metabolic disorders and obesity may be the main risk factors of elevated ALT.
9.CD133+ ovarian cancer stem-like cells differentiate into vascular endothelial cells
Liyan JIANG ; Xiangying LOU ; Zineng WANG ; Yanyan LU ; Ruiping GAO
Chinese Journal of Tissue Engineering Research 2015;(41):6623-6627
BACKGROUND:Numerous studies have confirmed that neovascularization plays an important role in the growth, invasion and metastasis of tumors. OBJECTIVE:To investigate the features of CD133+ ovarian cancer stem-like cels differentiating into vascular endothelial cels. METHODS:CD133+ ovarian cancer stem-like cels were successfuly harvested from A2780 ovarian cancer cel lines using serum-free culture method, and incubatedin vitro onto 96-wel plates with or without Matrigel. Then, we observed the capacity of CD133+ ovarian cancer stem-like cels and human umbilical vein endothelial cels to form tube-like structures at different time points. Through xenograft experiments, the role of CD133+ ovarian cancer stem-like cels in the angiogenesis of ovarian cancer was observed using immunofluorescence staining. RESULTS AND CONCLUSION:CD133+ovarian cancer stem-like cels and human umbilical vein endothelial cels cultured with no Matrigel had no corresponding lumen formation, and could not express CD31. But those cultured with Matrigel had lumen formation and expressed CD31 significantly. After tumor formation, human-derived CD31 expression was observed in the tumors. These findings indicate that CD133+ ovarian cancer stem-like cels can differentiate into vascular endothelial cels, and be involved in tumor revascularization.
10.The pathologic mechanism underlying hypertension-induced decline in arterial elasticity
Lin SHEN ; Haiqing GAO ; Beian YOU ; Yanyan HU ; Fei PEI
Chinese Journal of Geriatrics 2014;33(12):1282-1286
Objective To investigate the effect of hypertension on the large artery elasticity index (C1),the small artery elasticity index (C2) and the medial structure of the ascending aorta as well as the relationship between artery elasticity and the medial structure of the ascending aorta.Methods Sixty patients with CHD receiving coronary artery bypass graft surgery at our hospital were divided into two groups:30 patients in the hypertension group and 30 patients in the non-hypertension group.C1 and C2 were measured using the CVProfilor DO-2020 system.Sections of tissues taken from the anterior wall of the ascending aorta during the surgery were subjected to Masson's trichrome staining for the detection of vascular smooth muscle and collagen fibers and Weigert's resorcin-fuchsin staining for the detection of elastic fibers.The relative areas of vascular smooth muscle fibers,collagen fibers and elastic fibers of the ascending aorta were measured by a computer image analysis system under the light microscope.The linear correlations of C1 and C2 with the medial structure of the ascending aorta were analyzed.Results C1 in the non hypertension group was higher than that in thehypertensiongroup[11.9±1.8 (ml/mmHg×10) w 13.1±2.5 (ml/mmHg×10),t 2.22,P <0.05].In the media of the ascending aorta,the relative content of collagen fibers was higher,while the relative content of elastic fibers was lower in the hypertension group than in the non-hypertension group [(46.0±3.8)% w (42.2±3.0)%,(17.5±3.5)% vs.(19.3 2.7)%,respectively,t=4.24 and 2.20,P<0.01 or 0.05].C1 was positively correlated with the relative content of elastic fibers but negatively correlated with the relative content of collagen fibers in both groups (r=0.52 and 0.39,respectively,P<0.05 or 0.01).Conclusions The main pathogenic basis of hypertension-induced decline in arterial elasticity in CHD patients is increased collagen fibers and reduced elastic fibers with disorganization of the two types of components.C1 may accurately reflect the effect of hypertension on medial collagen fibers and elastic fibers in the ascending aorta.