1.Returning Path of Medical Humanities Spirit Based on the Current Situation of Medical Humanities Teaching
Yu WANG ; Xuesong WU ; Mei YIN
Chinese Medical Ethics 2014;(2):256-258
Medical has the dual attributes essentially , which is not only a science but also a humanology . Therefore , it needs to be nourished by rich humanistic spirit .At present , the generalization of medical technology , the abnormal development of medicine socialization and the less care from humanities to medical and many other reasons lead to the lack of humanistic spirit of medicine .To correct the phenomenon of the disorder, we should explore the effective means actively to provide powerful support for the returning of the medical humanism .There-fore, using an appropriate method to strengthen the humanities education of medical students and attention in the classroom will be regarded as good path in medical humanities spirit returning .
2.A novel chromene with anti-tumor activities from fungus Phomopsis sp.
Zhi-jun YANG ; Yu YIN ; Mei GE
China Journal of Chinese Materia Medica 2015;40(4):667-671
A new chromene (1) and six known compounds identified as 6-hydroxymellein (2), 6-hydroxy-5-methylmellein (3) nectriapyrone (4), chermesinone A(5), chermesinone B(6), and pomopxanthone A(7), were isolated in our investigation of the cytotoxic constituents from the fermented rice substrate of endophytic fungus Phomopsis sp. HCCB03519. The structures of these com pounds were elucidated through spectroscopic data analysis. All compounds exhibited inhibitory activities against cancer cell lines. Compound 7 showed stronger inhibition against cancer cells than the positive control 5-Fu.
Antineoplastic Agents
;
chemistry
;
pharmacology
;
Ascomycota
;
chemistry
;
Benzopyrans
;
chemistry
;
pharmacology
;
Cell Line, Tumor
;
Fluorouracil
;
chemistry
;
pharmacology
;
Humans
;
Isocoumarins
;
chemistry
;
pharmacology
;
Molecular Structure
3.Effect of Hypoxia Preconditioning on Change of Neuroglobin in Neonatal Rat with Hypoxia-Ischemia Brain Damage
Journal of Applied Clinical Pediatrics 2006;0(18):-
0.05).Conclusions HPC has protective effect on neonatal rats with cerebral hypoxia-ischemia,but it does not have obvious effect on NGB.
4.Establishment of Anterior Instability of Gienohumeral Joint on Rabbits
Yu YIN ; Yingfang AO ; Jianquan WANG ; Ping LIU ; Yu MEI
Chinese Journal of Sports Medicine 2010;(3):316-320
Objective To establish the animal model(rabbit) of shoulder instability for providing the experimental basis of related studies.Methods shoulder joints of 6 skeletally matured New Zealand white rabbits were measured with the anatomical characteristics and joint motion range in order to determine the operative approach,the similarities of skeletal structure,surrounding muscles,joint capsule and ligaments between rabbit and human were compared.Eighteen rabbits,weighing between 2.5 and 3kg were randomized into 2 groups(experimental group 12 and control 6).In experimental group,instability model was established by means of the operation procedure as follows:the glenohumeral joint of right shoulder was exposed by cutting the subscapularis tendon,then the anteroinferior labrum and surrounding capsular ligament were excised.For control group,sham operation was performed by only curing the skin and superficial tissue,the subscapularis tendon and glenoid structures was kept intact.The specimens of 6 rabbits were harvested 6 weeks after operation.The remaining rabbits of both experimental and control groups were killed 12 weeks post the operation for specimens processing.The motion range and instability were measured in all specimens.Results The gross anatomy of shoulder ioint in rabbit is similar to human.In experimental group,the stability is showed less than control,grade 2 anterior instability was found.The motion range was restricted in all directions,such as external and internal rotation,extension and abduction compared to control group.Conclusion Rabbit is suitable to establish animal model for shoulder instability and related iniuries,the animal model which was designed by this study could provide valuable information for the research of anterior shoulder instability.
5.Humanism Therapy:Realization of Ethical Spirit in Perioperative Patients
Shi YU ; Mei YIN ; Sheng TAI ; Xizhong YUE ; Yu WANG
Chinese Medical Ethics 2015;(4):581-584
This paper introduced the concept of humanistic therapy and its connotation and application in the field of surgery, the spiritual essence and the docking and bioethics.The authors also analyzed the perioperative patients need humanistic therapy, including technology, ethics, psychology, the needs of the practice; discusses the humanistic therapy in clinical practice,includes:practice conditions, personnel, measures and problems.
6.Apoptosis-associated proteins analysis of apoptosis of retina cell in diabetic mice using isobaric tags for relative and absolute quantitation
Min WANG ; Mei YIN ; Baoying LI ; Yu XIAO ; Haiqing GAO
Chinese Journal of Geriatrics 2014;33(6):661-664
Objective To analyze the protein expression changes of retina in diabetic mice using isobaric tags for relative and absolute quantitation (iTRAQ) approach and to study proteins of apoptosis.Methods 8 diabetic mice were chosen as the diabetic model group (DM group),8diabetic mice as the normal control group.The animals were housed in wire-bottomed cages and received normal pellet chow and tap water in a constant environment.After 10 weeks,all mice were killed,and their retina were dissected.After hematoxylin and eosin(H&E) staining,the sections of retina were examined using light microscopy.The changes of protein expression in retina were studied using iTRAQ approach.Expression of apoptosis associated proteins was analyzed using ingenuity pathway analysis (IPA).Results Compared with control group,mice retina in DM group developed looser structures,tissue edema and obvious telangiectasia under light microscopy.Using iTRAQ approach,a total of 348 differential proteins were identified.Among those proteins,16 proteins were related with apoptosis,including Ataxin-10,Protein NDRG1,mucin-4,Aquaporin-1 and annexin A4,etc.There were 8 apoptosis-related proteins in retina with up-regulation,and the other 8 proteins with down-regulation in the DM group.The relationship between these proteins were analyzed and charted by IPA.Conclusions Apoptosis may be involved in the development of diabetic retinopathy.The identification of the apoptosis-related proteins will be helpful for the further study.
7.The significance of RASSF2A promoter methylation in the early diagnosis of epithelial ovarian cancer
Yu WU ; Lei YIN ; Mingde ZHANG ; Jie GAO ; Mei CAO
Cancer Research and Clinic 2016;28(9):604-607
Objective To evaluate the methylation status of RASSF2A in epithelial ovarian cancer (EOC) tissues and plasma, and to explore the correlations in two kinds of samples with clinicopathological characteristics. Methods The frequency of methylation of the RASSF2A gene in tissues and corresponding plasma samples from 60 EOC patients, 20 patients with benign ovarian tumors and 10 patients with normal ovarian tissues were detected respectively. The methylation-specific PCR was used to determine the methylation status. Results The frequency of aberrant methylation of RASSF2A was 58.3% (35/60) in EOC tissues and 43.3%(26/60) in corresponding plasma samples respectively, however, such hypermethylation was not detected in the benign ovarian tumors and normal ovarian samples, and there was significant difference between them (P<0.05). Besides, RASSF2A methylation levels in serum of EOC patients correlated reasonably well with methylation status in tumor samples (r=0.739, P=0.000). No significant differences were observed between the promoter hypermethylated status of the RASSF2A and clinicopathological characteristics (P>0.05). Conclusions The promoter methylation of RASSF2A gene is an early and frequent epigenetic event in EOC. Detection of promoter hypermethylation in plasma specimens can help the early diagnosis of EOC.
8.Relationship between methylation of Ras association domain family-1A and protein expression in ;endometriosis
Yu WU ; Lina PENG ; Lei YIN ; Wei LI ; Mei CAO
Chinese Journal of Postgraduates of Medicine 2017;40(2):121-124
Objective To analyze the methylation status and protein expression of Ras association domain family- 1A (RASSF1A) in endometriosis (EMS). Methods The ectopic and corresponding eutopic endometrium tissues were collected from 45 women with EMS and normal endometrium tissues of 20 women without EMS. The methylation status of RASSF1A was examined by methylation specific PCR (MSP). Immunohistochemistry was performed to measure the level of RASSF1A in endometrium tissues. Results The RASSF1A protein expression rate in ectopic endometrium, eutopic endometrium, and normal endometrium was 37.78%(17/45), 60.00%(27/45) and 85.00%(17/20), and there was significant difference (χ2 = 13.136, P = 0.001). The frequency of aberrant methylation of RASSF1A was 55.56%(25/45), 33.33%(15/45) and 0 in ectopic endometrium , eutopic endometrium, and normal endometrium, and there was significant difference (χ2 =18.770, P = 0.000). The frequency of aberrant methylation of RASSF1A had no significant differnce throughout the menstrual cycle in ectopic endometrium and eutopic endometrium: 66.67%(14/21) vs. 45.83%(11/24), 38.10%(8/21) vs. 29.17%(7/24), P>0.05. In ectopic endometrium, the frequency of aberrant methylation of RASSF1A inⅢ-Ⅲstage was significantly higher than that in Ⅰ-Ⅱstage (χ2=5.940, P=0.015). In ectopic endometrium and eutopic endometrium, the RASSF1A protein expression had negative correlation with aberrant methylation of RASSF1A (r =- 0.594、- 0.577, P<0.01). Conclusions Epigenetic inactivation of RASSF1A through aberrant promoter methylation may be strongly correlated with the formation and progression of EMS, and assessment of RASSF1A methylation status in eutopic endometrium may be a potentially useful biomarker to enhance the early detection of EMS.
9.Effects of curcumin on apoptosis and caspase-3 expression in cortex tissue in rats with hypoxic ischemic brain damage.
Guang-Mei YIN ; Lin-Sheng YU ; Shu-Zhen WU ; Guang-Hua YE
Chinese Journal of Applied Physiology 2010;26(4):504-506
Animals
;
Apoptosis
;
drug effects
;
Brain
;
drug effects
;
Caspase 3
;
metabolism
;
Curcumin
;
pharmacology
;
Hypoxia-Ischemia, Brain
;
metabolism
;
pathology
;
Male
;
Rats
;
Rats, Sprague-Dawley
10.Effects of Xuefu Zhuyu Oral Liquid on hemorheology in patients with blood-stasis syndrome due to coronary disease and their relationship with human platelet antigen-3 polymorphism.
Mei XUE ; Keji CHEN ; Xiaojuan MA ; Jiangang LIU ; Yuerong JIANG ; Yu MIAO ; Huijun YIN
Journal of Integrative Medicine 2008;6(11):1129-35
To investigate the effects of Xuefu Zhuyu Oral Liquid, a compound traditional Chinese herbal medicine for resolving stagnation, on hemorheology in the patients with blood-stasis syndrome due to coronary disease and their relationship with human platelet antigen-3 (HPA-3) polymorphism of membrane glycoprotein IIb (GPIIb).