Endocrinology is a new and important medical science.Owing to the great development of modern scientific revolution,it improves quickly.However,the development of endocrinology abides by the laws of epistemology and dialectics.It embodies not only the practicality,penetration,creativity of the scientific cognition,the law of the unity of oppositeness in the growth of the object,but also the high unity of comprehension and analysis of the cognition.

Objective To investigate the application of intravascular ultrasonography in guiding the performance of interventional management for coronary true bifurcation lesions. Methods A total of 62 patients with coronary true bifurcation lesions, who were admitted to authors’ hospital during the period from April 2010 to Jan. 2014 to receive double stenting treatment, were included in this study. The patients were randomly divided into intravascular ultrasonography group (IVUS group, n=32) and coronary angiography group(CA group, n=30). The minimal lumen diameter(MLD), the minimal lumen area(MLA), the reference lumen diameter (RLD), the length of the lesion and the diameter and length of the implanted stent were determined, and the results were compared between the two groups. During the follow-up period lasting for 12 months after percutaneous coronary intervention, the incidence of in - stent thrombus, target lesion revascularization (TLR) and major adverse cardiac events were recorded. Results The MLD values of the main artery and branches in IVUS group were higher than those in CA group, but the difference was not significant (P>0.05). The MLA, RLD, the diameter and length of the implanted stent in IVUS group were significantly larger than those in CA group (P<0.05). The incidence of in-stent thrombus, TLR and major adverse cardiac events in IVUS group were lower than those in CA group (P>0.05). Conclusion Intravascular ultrasound- guided double stent implantation for coronary true bifurcation lesions can help optimize the performance of stenting and improve the long-term outcome of percutaneous coronary intervention.

A complete explanation of the new idea,grounds,spirit,inner-contradiction of the 3 major documents in the new framework of epileptic knowledge re-defined by International League Against Epilepsy was made in accordance with the International League Against Epilepsy original articles.And the different recognition about them nowadays existed among our nerologists was also deeply explored.

BACKGROUND:Estrogen signaling pathway for interaction between aromatase and estrogen-related receptor may exist in bone marrow mesenchymal stem cel s, which is used for regulating biological activity of bone marrow mesenchymal stem cel s. OBJECTIVE:To observe the expression of aromatase and estrogen-related receptors in adult bone marrow mesenchymal stem cel s during osteogenic differentiation. METHODS:Bone marrow mesenchymal stem cel s were respectively cultured in low-glucose DMEM medium (control group) and osteogenic induction medium (induction group). Cel proliferation and calcium deposition were determined by MTT assay and alizarin red staining, respectively. The expression of aromatase, estrogen receptorα, estrogen receptorβ, and estrogen-related receptorαduring osteogenic differentiation were determined by real-time PCR and western blot analysis. Estradiol levels in supernatants and lysates were detected by ELISA method. RESULTS AND CONCLUSION:In the induction group, the proliferation ability of bone marrow mesenchymal stem cel s was the strongest at 72 hours of culture;while there were a great amount of calcium nodules formed at 21 days of culture. Results from PCR and western blot assay showed that the expression of aromatase and estrogen receptorαwas improved in the induction group, but the expression of estrogen-related receptorαwas inhibited. There was no difference in the expression of estrogen receptorβbetween the two groups. ELISA results indicated that the level of estradiol in the supernatant of induction group was the highest. These findings indicate that aromatase, estrogen receptorα, estrogen receptorβand estrogen-related receptorαare al involved in osteogenesis of bone marrow mesenchymal stem cel s. Moreover, estradiol can be synthesized and secreted in bone marrow mesenchymal stem cel s, and most likely, promote the osteogenic differentiation of bone marrow mesenchymal stem cel s by related receptor pathway.

Objective:To study the influence of thrombus aspiration combined tirofiban on patients with acute ST seg-ment elevation myocardial infarction (STEMI)after primary percutaneous coronary intervention (PCI).Methods:A total of 98 patients,who received primary PCI because of STEMI in our hospital from Jan 2012 to Mar 2013,were selected.They were divided into thrombus aspiration group (n=48,received pure thrombus aspiration)and com-bined treatment group (n = 50,received thrombus aspiration combined intracoronary tirofiban injection during PCI).Coronary angiography (CAG)instantly after PCI and follow-up condition during hospitalization and six months after discharge were compared between two groups.Results:(1)Compared with thrombus aspiration group after PCI,there were significant rise in TIMI blood flow grade [(2.3±0.6)grades vs.(2.7±0.3)grades],per-centage of TIMI flow grade 3 (72.9% vs.90.0%)and ST segment regression >50% rate within 90min after PCI (52.1% vs.74.0%),P < 0.05 or < 0.01,and significant reduction in percentage of postoperative no-reflow (18.8% vs.4.0%,P =0.038)in combined treatment group in hospital;(2)After six-month follow-up,left ven-tricular ejection fraction (LVEF)of combined treatment group was significantly higher than that of thrombus aspi-ration group [(58±6.3)% vs.(51±5.6)%,P <0.05].Conclusion:Thrombus aspiration combined tirofiban can effectively reduce coronary thrombus burden and improve cardiac function in STEMI patients during primary PCI.

Whether or not an abormal expression of IL-6 mRNA in PBMNCs from IDDM patientswas examined using a hihgly sensitive,specific and semiquantitative protocal,i.e.reverse tran-scription and polymerase chain reaction (RT-PCR).The relative levels of IL-6mRNA in PBM-NCs from 12 early IDDMpatients (8.20?3.85yr),29 newly diagnosed NIDDM patients(54.85?9.12yr)23 normal childrens (8.20?3.26yr) and 12 normal adults (31.92?11.22yr)weredetermined.Significantly high expresion levels of IL-6 mRNA were found in PBMNCs from pa-tients with IDDM (P

AIM:To study the expression of Jagged 2/Notch3 signaling molecules in pulmonary vascular wall of pulmonary hypertensive rats induced by monocrotaline .METHODS: SD rats were randomly divided into normal control group (C group,n=15), solvent control group (S group,n=15) and monocrotaline model groups (M group,n=15).The model of pulmonary hypertension was established by a single subcutaneous injection of monocrotaline (50 mg/kg).The rats in S group were given a single subcutaneous injection of the same dose of solvent .After 4 weeks, the pulmonary vascular remodeling was assessed by HE staining , and the mean pulmonary artery pressure ( mPAP) and right ventricular systolic pressure (RVSP) were determined by right heart catheterization .The expression of Jagged2/Notch3 /Hes5 molecules in the pulmonary vascular wall was detected by immunohistochemical method and real -time PCR.RESULTS:Compared with S group and C group , the percentage of medial wall thickness of smaller arteries in model group increased significantly (P<0.01).The levels of mPAP and RVSP in M group were significantly higher than those in S group and C groups (P<0.01).The results of real-time PCR showed that the expression of Jagged 2, Notch3 and Hes5 was significantly increased in M group compared with S group and C group .The data from immunohistochemical detection indicated that Jagged 2 mainly expressed in the intima of small lung artery , Notch3 and Hes5 mainly expressed in the medial smooth muscle cells .Com-pared with S group and C group , the expression of Jagged 2 and Notch3 was significantly increased in the lung small arteries of M group.CONCLUSION:The activation of Jagged2/Notch3 signaling pathway might play an important role in the for-mation of pulmonary hypertension .

The aim of this study was to investigate the effects of Avastin on aquaporin4 (AQP4) expression in human retinal Müller cells in vitro under hypoxia, so as to explore the mechanism of Avastin treating retinal edema. The human Müller cells were cultured using the enzymatic digestion method. Müller cells were identified under the transmission electron microscopy and by using immunofluorescence staining. By using semi-quantitative reverse transcription polymerase chain reaction (RT-PCR), the expression of AQP4 mRNA and VEGF mRNA in Müller cells cultured with 500 μmol/L CoCl(2) for 0, 3, 6, 12 and 24 h, and with 0, 100, 300, 500 and 700 μmol/L CoCl(2) for 24 h was detected. The expression of AQP4 mRNA in Müller cells cultured with 50 ng/mL exogenous vascular endothelial growth factor (VEGF) for 0, 0.5, 1, 2 and 4 h, and with 0, 25, 50 and 75 ng/mL VEGF for 24 h was detected. Amplified cDNA products of AQP4 mRNA in Müller cells cultured with 500 μmol/L CoCl(2) and 200 μg/mL Avastin for 24 h were detected. The results showed that more than 95% cells displayed positive immunofluorescence reaction. Characteristic 8-10 nm intracellular filaments could be seen in the cytoplasm under the transmission electron microscopy. In the CoCl(2) experimental groups, the expression of AQP4 mRNA and VEGF mRNA in Müller cells was increased as compared with the control group. Alteration of AQP4 mRNA and VEGF mRNA levels showed a significantly positive correlation (r (2)=0.822, P<0.05). The expression of AQP4 mRNA in Müller cells was increased by VEGF. The expression of AQP4 mRNA was significantly decreased by Avastin as compared with the control group. It is suggested that Avastin can decrease the expression of AQP4 mRNA in human Müller cells under chemical hypoxic conditions partially via VEGF path, which may be one of the mechanisms of Avastin treating retinal edema.

The cytokines have close relationship with the rejection and infection in organ transplantation.The cytokine gene polymorphism influences the secretion of cytokines.The relationship between the rejection and infection in organ transplantation and some cytokines gene polymorphism is reviewed in this article.