1.Establishment and Evaluation of a Rat Model of Peritoneal Bacterial Infection after Liver Transplantation
Long DING ; Yu YANG ; Jiahong DONG
Acta Laboratorium Animalis Scientia Sinica 2010;18(1):69-73,彩7
Objective To establish a rat model of peritoneal bacterial infection after liver transplantation.Methods To construct a dark Agouti rat-to-Lewis(DA-to-LEW) rat model of liver transplantation.Peritoneal bacterial infection in the rats was induced by intraperitoneal injection of bacterial suspension.The liver function,blood gas,blood cell count and other indicators of the rat models were detected.Results There was a high mortality rate in rats with bacterial injection at day 5 after liver transplantation,therefore unfavorable for the following study.It waft better to inject the bacteria in an amount of 5×10~5 cfu/mL at day 3 after liver transplantation.The cumulative 7-day survival rate of those rats after infection reached up to 37.5%.The infection became increasingly severe,the general conditions were worsening,the rectal temperature was rising,the WBC count was increased,the pH was decreased,liver dysfunction was progressively increased,and metabolic acidosis occurred in the rats.Liver parenchymal damage was more pronounced than that of bile ductal injuries,and the rats died one after another at about 5 days after infection.Pathological examination of multiple organs showed that the main cause of death of the rats was liver damage,without accompanying lung and kidney damages.Conclusion The results of this study suggest that it is a successful method to establish a rat model of peritoneal bacterial infection after liver transplantation,and this model can be used in related experimental researches.
2.Impact of abdominal cavity bacterial infection on immunological rejection following rat liver transplantation
Long DING ; Yu YANG ; Jiahong DONG
Journal of Third Military Medical University 2003;0(11):-
Objective To investigate the changes of immune state and the impact on immunological rejection elicited by abdominal cavity bacterial infection after DA-Lewis rat liver transplantation.Methods Orthotopic liver transplant model was established by modified Kamada two-cuff technique.The animals were divided randomly into Group 1,isotonic Na chloride injected into abdominal cavity 3 days after operation;Group 2,mixed Bacillus coli liquid injected instead of saline;Group 3,immunosuppressive drug CsA administered routinely after operation(3 mg?kg-1?d-1).All the animals were sacrificed 7 days after infection.The blood and graft samples were collected for cell-subpopulation,mixed lymphocyte culture,IL-4,IFN-? mRNA detection and histological evaluation.Results Seven days after infection,the lympholeukocyte population,CD4/CD8(G1=1.753?0.181,G2=1.384?0.073,G3=0.997?0.025)and lympholeukocyte function(SI:G1=67.59?3.40,G2=37.14?0.90,G3=15.87?0.51)declined in Group 2 as compared with other groups and cellular differentiation drifted to Th2.There was significant difference between Group 2 and Group 1 or 3.Conclusion Abdominal cavity bacterial infection after rat liver transplantation will promote the differentiation of T cells into Th2,down-regulate CD4/CD8 ratio and immune function of lymphocytes and accordingly alleviate partly the acute rejection following liver transplantation.
3.Therapeutic Observation of Needle-knife for Allergic Rhinitis
Jianjun ZHANG ; Yu DING ; Gaiping YANG
Shanghai Journal of Acupuncture and Moxibustion 2017;36(8):968-971
Objective To observe the clinical efficacy of needle-knife therapy in treating allergic rhinitis. Method Sixty allergic rhinitis patients were randomized into a treatment group and a control group, 30 cases in each group. The treatment group was intervened by needle-knife therapy; the control group was given Azelastine hydrochloride nasal spray plus oral administration of Desloratadine, both twice a day. The intervention lasted for 4 weeks in both groups. The Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) and symptoms scores were observed before and after the treatment, and the clinical efficacies were compared between the two groups. Result The markedly effective rate was 90.0% in the treatment group versus 66.7% in the control group, and the between-group difference was statistically significant (P<0.05). The RQLQ and symptoms scores were significantly changed after the intervention in both groups (P<0.05). After the treatment, the RQLQ and symptoms scores in the treatment group were significantly different from those in the control group (P<0.05). Conclusion Needle-knife therapy is safe and effective in treating allergic rhinitis.
4.Carbamazepine caused severe drug eruption in treatment of tinnitus.
Hai-bo YANG ; Ding-qiang HUANG ; Yu-bo ZHU
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2012;47(3):248-249
Adult
;
Carbamazepine
;
adverse effects
;
therapeutic use
;
Drug Eruptions
;
etiology
;
Female
;
Humans
;
Tinnitus
;
drug therapy
5.Effects of autophagy on the proliferation and migration of cervical cancer cells
Yi YANG ; Yan DING ; Aiqing YU ; Shirong YAN
Practical Oncology Journal 2016;30(6):481-486
Objective To investigate the effect of autophagy on the proliferation and migration of cervi-cal cancer cells ,as well as the underlining mechanisms .Methods Rapamycin was used to induce the autophagy in HeLa cells,formation of autophagosomes was observed by staining with acridine orange under fluorescence mi -croscope.Western blot was used to detect the expression of LC 3 and PI3K/Akt/mTOR in HeLa cells.The LC3 plasmid was transfected into HeLa cells .The distribution of LC3 in cells and the expression of LC3 was identified by fluorescence microscope and Western blot ,respectively.The autophagy was inhibited with 3-methyladenine(3-MA )in HeLa cells.The cell proliferation was monitored by RTCA real -time instrument.Transwell chamber was carried out to assess cell migration .Results After 6h of rapamycin treatment ,the expression of LC3B was in-creased in HeLa cells ( P<0 .05 ) .The proliferative and migration ability were weakened compared to wild type HeLa cells(P<0.05).The same results in the presence of 3-MA.The expression of PI3K/AKT/mTOR path-way proteins were activated by rapamycin treatment and LC 3 overexpression(P<0.05).Conclusion Autophagy can suppress the proliferation and migration in cervical cancer cells ,which may relate to PI3K/Akt/mTOR path-way.
6.Expression of hMLH1 and hMSH2 in suspected hereditary non-polyposis colorectal cancer
Yu WANG ; Jing TONG ; Lei YANG ; Yanqing DING
The Journal of Practical Medicine 2014;(13):2061-2064
Objective To analyse the suspected hereditary non-polyposis colorectal cancer (HNPCC) in mismatch repair protein (MMR) expression of hMLH1 and hMSH2. Methods Immunohistochemical staining method was used for the detection of hMLH1 and hMSH2 protein expression in 193 cases suspected HNPCC patients, the deletion of MMR proteins was identified as highly suspected HNPCC cases. Results Of the 193 patients with suspected HNPCC hMLH1/hMSH2 abnormal expression rate was 29.02%; ≤30 years old was 40%, 31 ~ 40 years old was 28.05%, 41 ~ 50 years old was 28.71%,3 suspected HNPCC showed the deletion of hMLH1/hMSH2 protein expression at the same time ,; In the right colon , the left half colon and rectal anomaly detection rates were 40.74%, 32.65%and 18.89%; hMLH1/hMSH2 deletion was 46.15%with family history. Conclusions The deletion of MMR protein is closely related to age,site and family history in suspected HNPCC, and the deletion of hMLH1 is an important factor to induce early-set colorectal cancer. The deletion of hMLH1/hMSH2 at the same time indicates that hMLH1/hMSH2 genes may play important role in the incidence of HNPCC.
7.Three Dimensional Contrast Enhanced Subtraction MRA:A New Technique in theDiagnosis of Body and Lower Extremity Blood Vessel Diseases
Xian DING ; Kai YANG ; Yunfeng ZHU ; Kuilun YU ; Zhongze ZHANG
Journal of Practical Radiology 2000;0(02):-
Objective To study the value of three dimensional contrast enhanced subtraction MRA(3D CES MRA)in the diagnosis of body and lower extremity blood vessel disease Methods Eighteen cases were studied by 3D ECS MRA and proved by operationResults 3D CES MRA images were of diagnostic quality without ghost for all 18 patients.3D CES MRA clearly showed normal vascular anatomy and various disorders.According to surgery,the sensitivity and specificity of 3D CES MRA in the diagnosis of body and lower extremity blood vessel diseases were both 100%.Conclusion 3D CES MRA is a new technique in diagnosing of body and lower extremity blood vessel diseases.It is proved to be a simple,noninvasive and commercial method in diagnosing blood vessel diseases.
8.Relationship between genotype and phenotype in Alport syndrome: analysis at ?5 (Ⅳ) chain mRNA level
Fang WANG ; Jie DING ; Lixia YU ; Jiyun YANG
Chinese Journal of Nephrology 1997;0(05):-
Objective To analyze type IV collagen a5 chain mRNA and to study the relationship between genotype and phenotype in X-linked Alport syndrome. Methods Total RNA was isolated from the cultured skin fibroblasts of 21 unrelated Chinese X-linked Alport syndrome patients (17 males and 4 females),then ?5 chain (Ⅳ) mRNA was analyzed by using reverse-transcription-polymerase reaction (RT-PCR) and direct sequencing. Meanwhile,by using PCR and direct sequencing,detection of COL4A5 gene mutations at genomic DNA level was carried out. Results Abnormal ?5 chain IV cDNA was detected in 21 X-linked Alport syndrome patients,and seventeen mutations detected in this study were novel mutations. In 15/21 of patients,identical COL4A5 mutations were detected both at mRNA level and genomic DNA level,and in 6/21 of patients with splicing-site mutations,changes in transcript structure differed from changes in genomic DNA level. 16/21 of patients belonged to X-linked juvenile kindreds,and 2/21 of patients to adult kindreds. Conclusion Different type of mutations in COL4A5 can lead to the severe form of X-linked Alport syndrome,and mRNA-based procedures can both directly detect mutations in the coding sequences,as well as changes in transcript level or structure,and can identify some abnormalities that would otherwise have been missed by DNA-based procedures.
9.Effect of Chinese Medicinal Herbs on Human Scalp Hair Growth in Vitro
Yu SUN ; Shuxia YANG ; Ping TU ; Jiquan SONG ; Yangfeng DING
Chinese Journal of Dermatology 1994;0(05):-
Objective To study the effect of Chinese herbs on human scalp hair growth in vitro. Methods Organ culture of human scalp hair follicles was used to study the effects of extracts of Crataegus cuneata, Ligustrum lucidum, Polyporus umbelatus and Bletilla striata mixture and ginseng saponin on hair growth. Results Low doses of mixture extracts(1.28 ?g/mL and 6.4 ?g/mL) markedly enhanced the hair growth and lengthened the period of hair growth, while high doses of mixture extracts(4 mg/mL and 20 mg/mL) sharply inhibited hair growth and shortened the period of hair growth. High doses of ginseng saponin (40 ?g/mL and 200 ?g/mL) also had an inhibiting effect on hair growth. Conclusion This observation suggests that extracts of Crataegus cuneata, Ligustrum lucidum, Polyporus umbelatus and Bletilla striata mixture can promote hair growth in vitro.
10.Influence of psychological nursing on patients with pregnancy-induced hypertension combined with obstructive sleep apnea hypopnea syndrome
Qiwen ZHENG ; Xiaorong DING ; Lanfang YU ; Lin YANG ; Niangdi WANG
Chinese Journal of Practical Nursing 2012;28(25):3-4
Objective To analyze the clinical efficacy of psychological nursing on patients with pregnancy-induced hypertension (PIH) combined with obstructive sleep apnea hypopnea syndrome (OSAHS).Methods 96 patients with pregnancy-induced hypertension (PIH) combined with OSAHS from January 2009 to July 2012 were admitted.They were randomly divided into the experimental group and the control group with 48 cases in each group.All patients were given routine drug therapy,based on this,the control group received routine care,and the experimental group was given routine care and psychological nursing.The anxiety and depression score and the treatment effect were compared between the two groups.Results After eight-week treatment,in the experimental group,the scores of SAS,SDS declined obviously and the levels of blood pressure were significantly decreased compared with those in the control group.The difference was statistically significant.Conclusions Psychological nursing for patients with pregnancy-induced hypertension(PIH) combined with OSAHS played a positive role in nursing of these patients,it can remit their anxiety and depression emotion and also can significantly decrease the patients'blood pressure.