In this study,the relationship between the advanced glycation end products(AGEs) and the expressions of receptor for AGEs(RAGE),intercellular cell adhesion molecule-1(ICAM-1) was investigated.The diabetic rat model was reconstructed and the fluorescence method,RT-PCR and in-situ hybridization techniques were used to detect AGEs content and the expressions of RAGE and ICAM-1 gene in the aorta and cardiac tissues.The results showed that AGEs content in aortic and cardiac tissues increased(P＜0.01) in diabetic rats; The expressions of RAGE and ICAM-1 enhanced (P＜0.05～0.01) and were positively correlated with the quantity of AGEs accumulation(P＜0.01) in the aorta and cardiac tissue.These parameters change in the diabetic rats can be improved with aminoglumine(AG) treatment.Suggesting that AGEs might induce RAGE and ICAM-1 expression.It's postulated that AGEs binding to RAGE play an important role to result in diabetic endothelial cells dysfunction and lesion.

Objective To retrospectively review long?term results of developmental dislocation of the hip patients treated with open reduction and Salter pelvic osteotomy, and to analyze the potential risk factors. Methods Sixty?eight developmental dislocation of the hip cases (81 hips) were treated with open reduction and Salter pelvic osteotomy from September 1992 to Octo?ber 2002, 45 cases (52 hips) were followed up to skeletal maturity. None had undergone other treatment before the key surgery. Some cases received skeleton traction before surgery. The radiographic and functional results were assessed at last follow?up. The possible relevant factors for unsatisfactory outcome were analyzed. The correlation between type ⅡAVN and the coverage rate of the femoral head were evaluated. Results The mean age at surgery was 2.5 years (ranged from 1.4 to 5.3 years). At last follow?up, 44 hips (84.6%) had excellent or good functional results. 23 hips (44.2%) had avascular necrosis of varying severity, of which 16 hips were typeⅡ. There was significant relevance between the AVN severity and the Severin classification result (P=0.018). Theover correctionhips, that were overcorrected during surgery, were more likely to get severe type AVN ( P=0.037). There was no correlation between TypeⅡAVN with uncoverage according to CE angle and Reimers index (P=0.457, 0.308 respectively). Con?clusion 1) Satisfactory functional and radiographic results could be expected in developmental dislocation of the hip cases with?out AVN;2) High risk of AVN existed in the late diagnosised hips that underwent open reduction and Salter pelvic osteotomy, typeⅡwas the most common type;3) TypeⅡAVN was not a predictor for progressive femoral head coverage deficiency;4)Over cor?rectionin Salter pelvic osteotomy was related with severe type AVN which should be avoided.

AIM: To investigate the effects of a Chinese herb compound prescription, Wen-Jin-Tong(WJT), on the deposition of advanced glycation end products (AGEs) ,the expression of receptor for AGEs(RAGE)and ICAM-1 in cardiovascular tissues of diabetic rats. METHODS: The diabetic rat model was induced by injection of streptozotocin. The quantity of AGEs accumulation, the expressions of RAGE and ICAM-1 in aorta and cardiac tissues were detected using fluorescence method, RT-PCR and in situ hybridization techniques. RESULTS: AGEs accumulation in aorta and cardiac tissues of rats treated with Wen-Jin-Tong was lower than that of diabetic model rats(P

AIM:To investigate whether renal function damage could be induced by acute lung injury(ALI)in aging rats. METHODS: 40 Wistar male rats were used for reproducing aging animal model. Aging rats were randomly divided into aging control; ALI group (Lipopolysaccharide, LPS, 5 mg/kg body weight, iv) and LPS group (same dosage LPS, intraventricle of left heart injection). The samples (blood, lung and kidney ) were collected at 2 or 6 hours after LPS or normal saline administration. RESULTS:Compared with aging control, in ALI group, creatinine (Cr) and urea nitrogen (BUN) contents in blood were increased significantly (all P

Objective To provide laboratory data and direct experience of inhaling nitric oxide (NO) to treat persistent pulmonary hypertension of neonate.Methods Examined the effect of No on pulmonary arterial pressure of inhaled NO while rabbits were inhaled 44ppm NO,5% O_2 and air respectively in this model and those inspired air.Results Pulmonary hypertension was induced by reducing the fraction of inspired oxygen to 5% for 3 minutes.While 44ppm NO was added,a rapid decrease in pulmonary arterial pressure was observed (P

OBJECTIVE: To study the mTOR expression of cancer stem cells(CSCs) in nasopharyngeal carcinoma and preliminarily explore the mechanism of inhibiting its proliferation with rapamycin. METHOD: Nasopharyngeal carcinoma spherical cells were gathered by using serum-free suspension culture method, CCK8 assay was used to detect cell proliferation, Western blot assay was used to detect the expression of CD44, OCT4, SOX2 and mTOR signaling. The spherical cells and CNE2 were treated with rapamycin in concentrations of 0, 0.1, 1.0, 10.0, 100.0, 1000.0 nmol/L, CCK8 assay was used to detect cell inhibition ratio, Western blot assay was used to detect the expression of mTOR signaling of nasopharyngeal carcinoma spherical cells. RESULT: Compared with CNE2, the spherical cells exhibited a high proliferation rate in RPMI 1640 medium supplemented with fetal bovine serum, and overexpressed in OCT4, SOX2 (P < 0.05), but not that of CD44 (P > 0.05). Although the expression levels of mTOR, P70S6, 4EBP1 were not significantly different between the two kinds of cells (P > 0.05) the proteins of phosphorylation activation form of them (P-mTOR, P-P70S6, P-4EBP1) were highly expressed in spherical cells (P < 0.05). The spherical cells and CNE2 were treated with rapamycin in different concentrations, the concentrations for 50% of maximal effect of spherical cells and CNE2 were 2.59 nmol/L and 78.12 nmol/L respectively, rapamycin inhibited the spherical cells more strongly compared with CNEZ. The expression levels of P-mTOR, P-70S6, P-4EBP1 in spherical cells were gradually decreased with increasing of the concentrations of rapamycin, but the difference of the expression levels of mTOR, P70S6, 4EBP1 were not significant. CONCLUSION The proteins of mTOR signaling pathway of CSCs in nasopharyngeal carcinoma are overexpressed, and rapamycin can effectively inhibit cell proliferation of CSCs in nasopharyngeal carcinoma by blocking mTOR signaling pathway.
Adaptor Proteins, Signal Transducing ; metabolism ; Carcinoma ; Cell Proliferation ; Humans ; Nasopharyngeal Carcinoma ; Nasopharyngeal Neoplasms ; metabolism ; pathology ; Neoplastic Stem Cells ; drug effects ; metabolism ; Phosphoproteins ; metabolism ; Phosphorylation ; Signal Transduction ; Sirolimus ; pharmacology ; TOR Serine-Threonine Kinases ; metabolism ; Tumor Cells, Cultured

Objective To discuss imaging classification of blunt traumatic thoracic aortic injury (BTTAI) and weigh guideline value of its imaging classification to surgical options.Methods BTTAI in 12 patients were divided into three types in accordance with outline of aortic injury revealed by CT imaging,i.e.,type A of normal outline of aortic blood vessel but free endothelium in aortic cavity,type B of abnormal aortic outline and contrast extravasation to aortic lumen exterior but only confining to mediastina,and type C of abnormal aortic outline and contrast leakage to thoracic cavity.Significance of BTTAI morphological classification was analyzed according to data,such as systemic injury severity score (ISS),local injury sites,surgical approaches and patients' outcome.Results Multiple injuries combined with BTTAI were observed in all patients whose aortic lesion image could be all generalized by above-mentioned classification.BTTAI image showed type A in three patients,type B in seven and type C in two.Pseudoaneurysm was confirmed as the foremost common BTTAI.There were no significant differences in ISS,hypotension morbidity,treatment methods or mortality between each type of BTTAI.Conclusions BTTAI occurs mostly in multiple injuries and thus overall injury severity assessment is not only depended on aortic lesion classification.BTTAI classification in this study reflects injury severity of vessel wall,takes account to location of lesion and adjacent relations (especially length of landing zone) and hence has accurate referential value for surgical decisions.

Objective To evaluate the effect of greater trochanteric transfer for the treatment of coxa brevis in children and adolescents.Methods From August 2005 to January 2011,twenty patients (22 hips)with coxa brevis underwent greater trochanteric transfer.Among them 18 patients (20 hips) were available for evaluation,including 4 boys and 14 girls,with an average age of 11.4 years (range,7.5-15.0 years) at operation.Five cases (6 hips) were caused by Perthes disease,and 13 cases (14 hips) were caused by developmental dysplasia of hip.Four patients (4 hips) had undergone greater trochanteric epiphyseodesis ever before.All patients were fixed with tension screw after the deformity was corrected during the operation.After operation,the human plaster spica was used for 6 weeks in all patients.Results All patients were followed up for 14 to 79 months (average,31 months).At the last follow-up,fatigue or pain in the hips disappeared or improved in 13 patients.Sixteen patients had limping and positive Trendelenburg sign preoperatively,at the last follow-up 9 patients got improvement.Twelve patients (13 hips) had limitation of abduction of the hip,the average range of abduction was 25.38°±1.20°,which was improved to 45.38°±1.05° at the last follow-up.The average articulotrochanteric distance and ratio of the distance from the greater trochanter tip to femoral head center and the radius of the femoral head at the last follow-up was (17.47+3.14)mm and 2.10±0.21,respectively,there were statistical differences compared with those before operation [(-2.89±4.62) mm and 1.59±0.22,respectiovely].The average leg-length discrepancy at the last follow-up was (0.78t±0.26) cm,which had on statistical differences compared with that [(0.83 ±0.33) cm]before operation.Conclusion Greater trochanteric transfer for the treatment of coxa brevis in children and adolescents could improve the clinical symptom,recover the normal anatomy of the proximal femoral,restore the hip biomechanics environment,but could uot improve the leg-length discrepancy.

Objective To explore the effect of azelastine hydrochloride nasal spray combined with desloratadine to inflammatory factors, cell function and IgE of patients with allergic rhinitis.Methods 92 cases of allergic rhinitis patients treated in the first affiliated hospital of wenzhou medical college hospital from June 2014 to December 2015 were divided into experimental group(n=46) and control group(n=46) according to the random number table method.The control group was given oral loratadine tablets, one piece per time, one time per day, while the experimental group was given azelastine hydrochloride nasal spray on the basis of the control group,each nostril one spray, one time in the morning and night.The clinical efficacy of two groups of patients would be observed after 4 weeks,ELISA would be used to detect serum levels of IFN-γ, IL-4, IL-8 and IgE level, and IFN-γ/IL-4 was the value of Thl/Th2,flow cytometry instrument was used to the determination of T cell subgroup CD4 +,CD8 + cells.Results 4 weeks after treatment,stuffy nose, nasal itching, runny nose, sneezing and nasal cavity change points are lower than before the treatment in both the two groups.Experimental group obviously lower than the control group, the difference was statistically significant ( P <0.05 ).The total effective rate of treatment group is higher than the control group,the difference was statistically significant(χ2 =4.389,P=0.036).The serum level of IFN-γis higher than before treatment in both the two groups.IL-4, IL-8 inflammatory factor levels were lower than before treatment,the experimental group was better than control group,the difference was statistically significant(P<0.05).CD4 +,CD8 +of T cells and Thl/Th2 values are higher than before the treatment in both the two groups,the experimental group was higher than control group, the difference was statistically significant ( P<0.05 ).Serum IgE levels were lower than before the treatment in both the two groups,the experimental group was lower than control group,the difference was statistically significant (P<0.05).Conclusion The therapy of azelastine hydrochloride nasal spray combined with desloratadine can improve the clinical effect of the treatment of allergic rhinitis,reduce inflammation,strengthen the body's immune function, improve thelevel of serum IgE.

AIM:The objective of this study was to observe the effects of AP-1 element on endothelin-1(EDN1)gene transcription in homocysteine(Hcy)-induced human umbilical vein endothelial cells(HUVECs).METHODS:The redox level in Hcy-induced HUVECs was determined by using the fluorescent product DCF.The influences of Hcy on expressions of EDN1 mRNA and protein of c-jun/AP-1 in HUVECs were measured by the methods of RT-PCR and Western blotting,respectively.The EDN1 secretion level of HUVECs induced by Hcy was determined by enzymatic immunoassay.The transient transfection assay was performed and luciferase activity of transcriptional factor AP-1 reporter gene induced by Hcy was detected.RESULTS:The Hcy significantly increased EDN1 secretion,EDN1 mRNA expression and oxidative stress in HUVECs.Hcy remarkably induced the expression of pGL3-EDN1-AP-1(115/+135)luciferase reporter gene plasmid.However,basic expression of mutation of pGL3-EDN1-AP-1(-115/+135)luciferase reporter gene plasmid was downregulated markedly in HUVECs induced by Hcy.CONCLUSION:Redox-active and release of ROS are changed by Hcy.Activated AP-1 element plays an important role in EDN1gene transcription in HUVECs induced by Hcy.