The taxol s effect of inducing apoptosis is mainly related to its ability to promote tubulin polymerization and prevent tubulin chain depolarization. Drug resistance is the main restriction factor for clinical usage of taxol. Some basic and clinical studies support that poor response to taxol and poor prognosis are related to overexpression of β tubulin Ⅲ.

Objective To explore the efficacy of ligustrazine combined with chemotherapy in patients with relapsed or refractory NHL and the relationships with P-gp expression. Methods 60 Patients were randomized into reversal agent group (ligustrazine + chemotherapy) and control group (chemotherapy) and the outcome was analysed. P- gp expression was analysed by flow cytometry. Subgroup analysis was conducted a ccording to P-gp expression. Results 56 patients could be evaluated. Progression -free survival (PFS) showed no statistical diference in two groups ( P = 0.065 1 ) ; reversal agent group had a higher overall response rate (ORR) than control group(P=0. 048).Subgroup analysis showed 41 patients had P-gp( +). The complete remission rate and complete remission uncertain rate of patients with P-gp( + ) in reversal agent group and control group were 33. 33% and 8. 70% , respectively, reversal agent group had a significant advantage ( P = 0. 048). Patients with P-gp( + ) in reversal agent group had a higher ORR than control group (61. 11% vs 26. 09% ,P =0.024). Kaplan-Meier survival curve and Log-rank test showed patients with P-gp( + ) in reversal agent group had longer PFS than control group (P =0.046 4). Blood pressure in a small number of patients received ligustrazine therapy decreased,and mitigated after reducing the dose. Conclusion Ligustrazine combined with chemotherapy can elevate response rate,prolong PFS with manageable toxicity and correlate to P-gp expression in relapsed or refractory NHL

Acupuncture Points ; Acupuncture Therapy ; Aged ; Anterior Compartment Syndrome ; therapy ; Humans ; Male ; Tibia ; injuries

The mechanisms underlying early neurological deterioration (END) after ischemic stroke are not clear.There are no reliable predictive factors and effective preventive measures for END.The glutamatemediated excitotoxicity plays a very important role in the cascade reaction of ischemic events.High level of glutamate in plasma is one of the important predictors for END.Studies have shown that the polymorphism in the promoter of the excitatory amino acid transporter-2 gene is a potential cause for individual susceptibility to END.Some therapeutic strategies of interrupting the glutamatergic pathways may be as the strategies of intervention END.

Postoperative atrial fibrillation (POAF) is the most common complication after cardiac surgery, which leads to hemodynamics disorder, prolongs hospitalization and increases mortality. The underlying mechanisms behind POAF are associated with cardiomyocyte injury, sympathetic activation and inflammation. The prediction of POAF is based on correlated index from pre-, intra-and post-surgery. POAF can be treated by rhythm and heart rate control as well as and antithrombotic therapy.

The blood-brain barrier (BBB) exerts its central nervous system (CNS) protective function as it hinders the delivery of diagnostic and therapeutic agents to the brain. With the development of nanotechnology during the last thirty years, the nanocarriers for delivering drugs make it possible to transport drugs across the BBB. The brain-targeted drug delivery system usually consists of two parts: nanocarriers and brain-targeted strategies. In this review, several kinds of nanocarriers are introduced for brain-targeted drug delivery. We focus on several possible strategies for brain-targeting and comment on their advantages and disadvantages in application.

Objective To study the changes of ICAM-1 expression in transplanted lung at the early stage after rat pulmonary transplantation.Methods The expression level of ICAM-1 protein and its mRNA in rat transplanted lung after 4 h of ventilation and reperfussion were detected by using immunohisto chemical method(SABC method)and semiquantitative reverse transcriptase polymerase reaction method in the experimental group(n=6).When donor lungs had been flushed with low potassium solution(LPDS) and preserved in 4.C LPDS for 12 h,left orthotopic pulmonary transplantation was performed.In control group (n=6), left pulmonary artery,pulmonary vein and bronchi were fully freed to be naked.Immunohistochemical test results were recorded in negative(-),suspicion(±),faint positive(+),positive(++)and intensive positive(+++).PCR products were separated by agrose gels and the density of the bands were determined by density scanning.Results The stained color of alveolar epithelial cells and pulmonary vascular endothdial cells in the transplanted lung was significantly more intensive in experimental group than in control group(P＜0.01) and the relative density values(ICAM-1/βactin)were also significandy higher in experimental group(0.837±0.044) than in control group (0.442±0.037),P＜0.01. Conclusions ICAM-1 expression in the transplanted lung was up-regulated in the early stage after pulmonary transplantation,which was related with the enhancement of ICAM-1 mRNA.

Objective To measure the curvatures of the distolingual root canals of permanent mandibular first molars by cone-beam computed tomography (CBCT). Methods The CBCT was used to collect 230 cases of mandibular first molar distalingual root from 513 patients. The images were created by 3-D reconstruction based on the BECT data. Images were analyzed by NNT image analysis software. Each tooth was captured in clinical (CV) and proximal view (PV) image, and measured by the Schneider method. Results The average curvature of the distallingual canal was (13.27 ± 8.57)° in CV, and (30.96 ± 11.63)° in PV. Most of the distallingual root in the buccolingual view was mild bending or moderate bending , and the proximal view was severe bending. The distal lingual root bending was the most common in the crown third of the root , next in the apical third of the root, in the middle third of the root. Conclusion CBCT is an effective tool for the detection of additional distolingual roots and is a valuable aid for dentists in root canal treatment.

Objective To investigate the feasibility, safety and efficacy of the stent-assisted coil embolization for the treatment of wide-necked anterior communicating artery (ACoA) aneurysms. Methods From November 2011 to November 2014, the clinical data of the patients with wide-necked ACoA aneurysms treated by using the stent-assisted coil embolization were analyzed retrospectively. The clinical and radiographic effects were summarized. The perioperative complications were focused on. Results The ACoA wide-neck aneurysms of 29 patients were treated with stent-assisted coil embolization. Two of them abandoned the interventional treatment because of stents could not be in place and release. The immediate results of interventional treatment showed that 21 were embolized completely (78% ), 5 were near totaly embolized (19% ), and 1 was partialy embolized (3% ). Three patients had intraoperative thrombosis (recanalization achieved after thrombosis, one of them died of cerebral hemorrhage after thrombolysis). One patient suffered cerebral angiospasm, one had aneurysm rupture, and one had distal rupture of the anterior cerebral artery. Twenty-seven patients received clinical folow-up, and the folow-up time ranged from 2 to 36 months (mean 17 months). None of the patients had hemorrhagic or ischemic complications. Sixteen patients received imaging folow-up, and the folow-up ranged from 6 to 12 months (mean 7 months). None of the aneurysms had recurrence. Conclusions Stent-assisted coil embolization of wide-necked ACoA aneurysm is overal feasible, safe, and effective although there are certain risks.

Objective To research the binding specificity of new recombination toxin LHRH-PE40 and LHRH receptor on the surface of human colon carcinoma cell line Lovo and the mechanism of anti-proliferation,and determine the apoptosis.Methods Lovo cells were analysed by LHRH-PE40 marked with()~(125)Ⅰ;the cytocidal effect of the anti-tumor was evaluated by MTT assay,and the apoptotic rate was analysed by flow cytometry.Results Lovo cells had the binding of aglucone and receptor.Half lethal dose of human colon carcinoma cells Lovo with LHRH-PE40 was 0.24 mg?L~(-1).The apoptotic rate was increased when the LHRH-PE40 concentration was ranged from 0.1 to 10 mg?L~(-1)(P