Objective To prepare RGD conjugated paclitaxel and curcumin loaded liposome and evaluate their properties and effect on the treatment of ovarian carcinoma in vitro and in vivo . Method The liposomes were prepared by thin film hydration method. The particle size,Zeta potential and entrapment efficiency were evaluated. The efficiency of cellular uptake on A 2780 cells in vitrowas evaluated. Flowcytometry were used to observe the apoptosis morphous.A 2780 cells werexenografted in athymic mice to establish the animal model, which were used to evaluate the effect of anti-cancer. Results The particle diameter of the RGDLP-PTX/Cu was (94.8±11.2) nm with the Zeta potential of (-3±2.45) mV. The entrapment efficiency of PTX and Gen were 81.8%and 84.6%respectively. The result demonstrated that RGDLP uptaken by A 2780 were 3.6 times higher than that of LP. The apoptosis assay、the inhibition of the inhibition of tumor in vivoconfirmed strong inhibitory effect ofRGDLP-PTX/Cu. Conclusion RGDLP-PTX/Cu were easy to prepare and it is a potential delivery system for the treatment of ovarian carcinoma.

Objective To compare the effect of the McKenzie method and traditional manipulation in the treatment of patient with cervical spondylotic radiculopathy. Methods Seventy-two patients (42 women and 30 men with an average age of 42.60?13.73 years ) were randomly divided into 2 groups: an observation group and a control group. Both groups were given cervical traction, medium frequency electrotherapy and ultrasound therapy. In addition, the observation group was also treated with the McKenzie techniques, while the control group was treated by traditional manipulation. All the subjects were evaluated in terms of the clinical effect, VAS(Visual analog scale), McKenzie′s movement loss. The 1-year follow-up results were obtained. Results Both groups got a good therapeutic effect( the cure rate was 69% and 55.5%, respectively) and significant pain relief (P0.05). Range of motion of the cervical spine of the observation group was significantly improved after the treatment(P

Adaptive response is a topic of general interest in medical research. Utilization of adaptive response has become a new treatment strategy for some diseases, the core of which is to stimulate the mechanisms of body internal protection, to improve the adaptive and anti-injury capability, and to maintain the homeostasis of the body. The existence of adaptive response indicates that the body internal protection can be induced and its key mechanism is the inducement of internal protective factors (internal protective proteins). In this article, some connections between adaptive response and the theory of traditional Chinese medicine (TCM) were discussed, which indicated that adaptive response is much beneficial for explaining some theories of TCM such as correspondence between human and nature, strengthening healthy qi to consolidate constitution, acupuncture theory, adaptogen herbs, and treating disease before its onset, etc. Thus the adaptive response is of great significance for explaining scientifically the connotative meaning of the theories of TCM and for promoting the integration of TCM and western medicine.

OBJECTIVE:How to explain and predict individual difference of artificial cochlea so as to evaluate rehabilitative effect of implant has been paid much attention by audiological scholars,clinical physicians,patients,and their relatives. This study was designed to analyze and evaluate rehabilitative status of patients accepting artificial cochlea implantation to investigate the relative influential factors of auditory rehabilitation. METHODS:A total of 28 patients were selected from Department of Otolaryngology Head and Neck,Affiliated Hospital of Qingdao Medical College from June 2002 to April 2008. They were accessed by age,time of rehabilitation training,usage of hearing aids,audiology and aural image before surgery,and NRT monitoring in cochlear implantation so as to observe auditory improvement. The clinical results were analyzed to detect the effect of various factors on auditory rehabilitation. RESULTS:Age,preoperative preparations and good audiology and aural image are important premises for a successful rehabilitation. Longer the time of using hearing aids and language rehabilitation are,and better results will get. NRT response during operation is also an important factor for good auditory rehabilitation. CONCLUSION:The influential factors of auditory rehabilitation after cochlear implant included the age,audition remains,usage of hearing aids,NRT response during operation,and the time after the cochlear implant operation.

Objective To observe the effects of fluoride on testicular cell cycle and cell apoptosis of male rats.Methods Thirty-two healthy male Wistar rats,weighting 150-180 g,were randomly divided into 4 groups by body weight using random number table,normal sodium (control),the low-dose,medium-dose and high-dose groups(100,200,300 mg· kg-1· d-1 NaF,respectively) by intragastric administration for 90 days,and bodyweight was observed daily.After the last intragastric administration,all rats were killed by cervical dislocation.The testicular cell cycle and cell apoptosis were measured by flow cytometry.Results After 30 days exposure,the difference of body weight between groups was statistically significant(F =3.884,P ＜ 0.05).The body weights in low-and medium-dose groups[(235.00 ± 14.56),(235.44 ± 24.99)g] were significantly increased than that of high-dose group [(206.00 ± 18.16)g,all P ＜ 0.05].There was no significant difference of body weight between the groups at 0,60 and 90 days(F =0.501,0.578,1.893,all P ＞ 0.05).Compared with the control group[(43.10 ± 3.62)％],the percentages of G0/G1 stage cells were significantly increased in all the NaF-treated groups [(57.60 ± 7.26) ％,(52.80 ± 3.20) ％,(73.13 ± 4.08) ％] and the percentages of S stage cells were significantly decreased in all the NaF-treated groups [(10.58 ± 2.58)％,(9.35 ± 0.35)％,(9.55 ± 0.50)％] compared to the control group[(19.23 ± 0.61)％,all P ＜ 0.05].On the other hand,the percentage of G2/M stage cells decreased significantly in high-dose group[(17.18 ± 2.21)％] compared with the control group[(36.34 ± 5.05)％,P ＜ 0.05].The testicular cell apoptosis ratios in all the NaF-treated groups were higher than that in the control group,but only in medium-and high-dose groups[(71.03 ± 2.30)％,(71.90 ± 2.16)％],the difference was statistically significant compared with the control group [(60.80 ± 2.34)％,all P ＜ 0.05].Conclusion Chronic fluorosis can change testicular cell cycle and cell apoptosis and damage the reproductive system.

Mycotoxins,secondary metabolites produced by certain fungi,have become one of the most harmful factors that affect the clinical safety of medicinal herbs that probably can be contaminated by harmful toxins generated from fungi in the whole process from planting to clinical use. Therefore,more toxicological research of mycotoxins,a better knowledge of the pathogenesis and quick detection with sensitivity and accuracy will play an important role in targeted therapy of poisoning by mycotoxins and early warning . In this paper,the current status of mycotoxin contamination in medicinal herbs was ana?lyzed,and the progress of toxicological study on common contaminants was reviewed. In view of the high toxicity of toxins,the strategy of ″Prevention First″ is highly desirable. Hence,the development of rapid detection of typical mycotoxins was systematically discussed. The review was intended to provide ref?erence for ensuring clinical safe administration of medicinal herbs and for reducing the risk of mycotoxin poisoning.

Objective To investigate tile clinical significance of IL-13 gene expression in peripheral blood mononuclear cell(PBMC) and level of plasma IL-13 from patients with lupus nephritis(LN). Methods Ten healthy volunteers and 16 patients with LN were included in this study. All patients had been performed percutaneous renal biopsy and examined by light and immunofluorescence microscopy. The expression of IL-13 nRNA in PBMC was evaluated by RT-PCR. The level of plasma IL-13 was determined using an IL-13 specific ELISA. Results The expression of IL-13 mRNA in PBMC and the levels of Plasma IL-13 from patients with LN were significantly higher than those of the controls(l .99 ? 0.29 vs 0.68 ? 0. 15, P

Effects of preconditioning(PC) and praeruptorine C(Pra-C) on intracellular free calcium level(［Ca2+］i) and NO content in hypertrophied vascular smooth muscle cells (VSMC) with hypoxia were studied. ①The aorta VSMC of rats with renovascular hypertension induced by two-kidney-one-clip(2K1C) were isolated and cultured. Fura-2/AM was as a calcium fluorescent indicator. It was seen that Pra-C(20 mg*kg-1*d-1，ig, for 9 weeks from week 9 after 2K1C) and PC (3 cycles of 5 min pure N2 and 5 min 95%O2+5%CO2) antagonisted the elevated activities(higher ［Ca2+］i) induced by KCl and norepinephrine in VSMC with hypo- xia (30 min pure N2). ② In hypertrophied VSMC stimulated by angiotensinⅡ, combination of Pra-C(10 μmol*L-1 for 24 h) and PC enhanced NO content to the normal level in hypertrophied VSMC with hypo- xia. The results suggest that combination of Pra-C and PC have cooperative protection for hypertrophied VSMC with hypoxia injury.

Objective To investigate the risk factors of acute exacerbation of chronic obstructive pulmonary disease(AECOPD) combined with respiratory failure.Methods The clinical data of 120 patients with AECOPD combined with respiratory failure were retrospectively analyzed.The patients were divided into disease improved group (96 cases) and disease serious group (24 cases,including death) according to the treatment outcome.Risk factor and treatment strategies of the two groups were statistically analyzed.Results There was no significant difference in age,sex,disease course and arterial blood oxygen partial pressure(P ＞ 0.05).The body mass index,albumin,pH,successful cough and expectoration rate,nutritional support rate,and noninvasive mechanical ventilation rate in disease improved group was higher than that in disease serious group[(28.5 ± 9.8) kg/m2 vs.(23.3 ± 7.4) kg/m2,(21.4 ± 7.9) g/L vs.(19.3 ± 6.8) g/L,7.23 ± 0.20 vs.7.11 ± 0.17,79.2％ (76/96) vs.25.0％ (6/24),58.3％ (56/96) vs.33.3％ (8/24),81.2％ (78/96) vs.62.5％ (15/24)],arterial blood carbon dioxide partial pressure,mild consciousness obstacle rate,multiple drug-resistant infections rate,fungal infection rate,nasal feeding rate,hormone use time and the incidence of heart failure,pulmonary encephalopathy,hepatorenal function damage and upper gastrointestinal bleeding in disease improved group was lower than that in disease serious group [(10.08 ±1.71) kPa vs.(11.98 ± 2.03) kPa,13.5％ (13/96) vs.58.3％ (14/24),22.9％ (22/96) vs.41.7％ (10/24),0 vs.29.2％ (7/24),50.0％(48/96) vs.75.0％(18/24),(5.3 ± 1.3) d vs.(11.3 ± 3.8) d,8.3％(8/96) vs.25.0％(6/24),13.5％(13/96) vs.70.8％(17/24),28.1％(27/96) vs.41.7％(10/24),5.2％(5/96) vs.12.5％(3/24)],and there was significant difference (P ＜ 0.05).Conclusion Complicating disease,nutritional status,consciousness,capability of sputum exclusion,the degree of respiratory infection,treatment with noninv asive positive pressure ventilation,arterial gas analysis index are the correlated factors of prognosis in AECOPD combined with respiratory failure.

Objective To discuss the best resistance factors of paclitaxel(Taxinol)on benign biliary scar fibrosis,in order to provide an effective basis for clinical prevention and treatment of benign biliary scar fibrosis.Methods Human bile duct epithelial cells were cultured in vitro,the prepared PTX at 0.001 uM,0.005 uM,0.1 uM,0.5 uMand 1 uMconcentration were separately added into cells for 48 h.The half inhibitory rate of BEC (IC50) were determined by MTT and the optimal concentration were confirmed.Human bile duct epithelial cells were cultured in 0 h,24 h,48 h and 72 h,the inhibitory rate of BEC at 100 nM,250 nM,and 500 nM PTX-Chitosan Sustained release membranes and the optimal concentration of PTX were determined by MTT and the optimal concentration of PTX-SRM were obtained.Human bile duct epithelial cells were cultured for 48 h and 72 h,the mRNA and protein expression ofα-SMA,E-cadherin,Vimentin were detected by Western Blot and Real-time PCR methods.Results The optimum resistance concentration of PTX to benign biliary scar was 250 nM.PTX and PTX-SRM could effectively inhibit the proliferation and transformation of BEC,and the best effective treatments to resist benign biliary scar fibrosis were low and middle concentrations of PTX-SRM,the best drug loading were 100 nMand 250 nM.The inhibition duration of PTX-SRMon BEC was longer than PTX alone(P<0.05).Conclusion The inhibition of PTX-SRMon BEC proliferation and transformation is better than the single drug of PTX,which provides a new scientific and feasible method for clinical prevention and treatment of benign biliary scar.