Uveitis is a kind of inflammatory disease affected in ocular posterior segment.Uveitis sustains a long duration and causes a significant damage of visual function.It often leads to serious complications,such as cystoid macular edema (CME),cataract,glaucoma,retinal detachment and choroidal neovascularization (CNV).In the pathological process of uveitis,inflammatory factors promote the release of vascular endothelial growth factor (VEGF) through a variety of pathways.It has been verified that VEGF level is elevated in vitreous in the patients with uveiticinduced CME.Intravitreal injection of anti-VEGF drugs,including ranibizumab and bevacizumab,can improve the visual acuity in most patients with noninfectious uveitic-induced CME and CNV.However,intravitreously repeated injections of anti-VEGF drugs may be required in some patients.Intraocular injection of anti-VEGF drugs is an optional and effective way for those with persist macular edema and not being suitable for the use of corticosteroid or immunosuppressive therapy.However,anti-VEGF drugs may affect the efficacy of corticosteroid.Therefore,more clinical and basic researches are still needed.The status and progresses in the use of anti-VEGF drugs for uveitisinduced CME and CNV were reviewed.

Non-Drug Therapy has good advantages for sub-health state.Commonly used methods of non-drug therapy are health education,life conditioning,physical exercise,psychological adjustment,acupuncture,massage and etc.TCM has obvious advantages in the field of non-drug therapy,showing broad prospects.

It is an important topic in life science research to study the method of intervening sub-health. Previous studies indicated that traditional Chinese medicine (TCM) has unique advantages in sub-health intervention. In this paper, TCM sub-health intervention was summarized from such aspects as diagnosing according to syndrome differentiation, application of herbal medicine and Chinese patent medicine, herbal cuisine and medicated bath. At the same time, the paper discussed methods of sub-health comprehensive intervention, the relation between individual physical factors and sub-health, and the potential influence of the sub-health intervention on the innovation of Chinese medicine health insurance.

Objective: To investigate the effect of chloride concentration on the corrosion of Co-Cr alloy and pure Ti in a simulated oral environment. Methods: The electrochemical corrosion tests of pure Ti and Co-Cr alloy were carried out in neutral artiifcial saliva solutions with different NaCl concentrations (0.9%, 2.0%, and 3.0%). hTe morphologies of corroded surface for pure Ti and Co-Cr alloy were observed by scanning electron microscope (SEM). Results: hTe changes in the self-corrosion potentials (Ecorr) for pure Ti and Co-Cr alloy in three kinds of artificial saliva solutions was not obvious. However, the self-corrosion current densities (Icorr) of pure Ti were much lower than those of Co-Cr. TheIcorr of Co-Cr alloy increased in a concentration-dependent manner of NaCl, whereas the breakdown potential (Eb) of Co-Cr alloy decreased in a concentration-dependent manner. hTe potential ranged for the breakdown of oxide film (Ev) was shortened in a concentration-dependent manner of NaCl. There was no obviousdifference in theIcorr of pure Ti with different concentrations of NaCl. hTe breakdown potential was not seen according to the polarization curves. Conclusion: In a certain range, the increase of the concentration of Cl- leads to accelerate the corrosion behavior of Co-Cr alloy, but it does not affect pure Ti.

Objective:To investigate the stability of Zhiling Liumiao oral liquids. Methods: The active ingredients in Zhiling Li-umiao oral liquids were determined by HPLC, and the identification was studied by TLC. Meanwhile, the other indices including char-acter, relative density, pH and microbial limit were determined as well. Results:The active ingredients in Zhiling Liumiao oral liquids could be influenced by strong light, while the changes were within the range of the quality standards, and the samples were stable in the accelerated test and long-term test. Conclusion:The designs of preparation process and package are rational to keep the stability of the preparation. The shelf time may be set at 12 months.

This paper discussed the ethical principles in the medical sci-tech journal editing work, namely, respect, fairness, equality, honesty, and combining with the particularity of medical journals, further discussed these principles during choosing manuscripts, inviting manuscripts, peer review, rejection, and so forth. This pa-per proposed that medical journal editors should adhere to in the work of ethical principles, and constantly improve their ethics quality.

Objective To understand the attitude and current situation of medical English stud y as well as its relevant factors among long schooling medical students so as to provide first hand information for constructing students-centered medical English teaching model. Methods A self-de-signed questionnaire including basic information of students, attitude and current situation of medical English students was given to 134 seven or eight year program clinical medical graduates from grade 2006 to grade 2008 in Tongji University. Questionnaires were collected timely and an-alyzed with SPSS 19.0 and results were described by percentage. Results Totally 132 copies of questionnaire were recovered with an recovering rate of 98.51%. 56.82%(75/132) students had interest in medical English study and 71.97%(95/132)students had a will to go abroad for learning exchange. Main pur-poses for students to learn medical English were ‘professional literature reading’(68.94%,91/132),‘SCI papers writing’(59.09%,78/132)and ‘international communication’(58.33%, 77/132). Main influencing factors of medical English study were ‘boring teaching methods ’ ( 45 . 45%, 60/132 ) ,‘difficult medical English’(41.67%,55/132) and ‘insufficient teaching time’(40.91%,54/132).Conclusions Medical students with long schooling have demand for medical English study;however, most of them have some difficulties in practical application. Measures should be taken from three as-pects including students, teachers and curriculum setting to improve students' medical English.

It is a brief review of our research on the role of metallothioneins (MTs) in the occurrence and development of hepatocellular carcinoma (Hcc) in more than a decade,and the mechanism of prevention and treatment for Hcc in the field of TCM.It was found that MTs were required for the malignant proliferation of Hcc cells and their expressions significantly increased under different levels of stress.MTs may exert their effects on promoting proliferation via increasing ribosomal protein gene or other gene expressions.The over-expressions of MTs directly altered the balance of ions in the cell nucleus,and interacted on the genes promoting malignant proliferation.Hepatotoxicity and hepatic damage caused by DEN were reduced and relieved to different extents by the representative formula or constitute,which under the common therapeutic principle,by which MTs expressions were down-regulated as well.In conclusion,both effects above are important in the liver protection,inhibition of hyperplasia and carcinogenesis.

BACKGROUND:The differentiation of neural stem cells (NSCs) is a hot research. Whether brain-derived neurotrophic factors (BDNF) can induce the differentiation of NSCs into neurons has not been detailed studied. OBJECTIVE:To investigate the effect of different concentrations of BDNF on the differentiation of NSCs from adult rat hippocampus into neurons in the medium with epidermal growth factor. DESIGN:A controlled study. SETTING:Department of Human Anatomy, China Medical University. MATERIALS:The experiment was performed at the Neurotomia Laboratory of China Medical University in August 2007. NSCs isolated from hippocampus of adult SD rats were inoculated in a serum-free medium. Three clean adult SD rats (200-250 g each) were provided by Laboratory Animal Department of China Medical University. Dispositions to the rats were consistent with ethical standards of animals. Epidermal growth factor (EGF) and BDNF were bought from R&D Company. METHODS:①NSCs obtained from rat hippocampus were cultured in the serum-free medium containing basic fibroblast growth factor (bFGF), EGF and B27. ②Single cell clone was obtained via limited dilution for the fourth passage of cells. Identification of NSCs for the passage of cells from monoclonal spheres was performed by Nestin immunocytochemistry. Neurons and astroglial cells were identified by immunocytochemistry for neuron specific enolase (NSE) and glial fibrillary acidic protein (GFAP) a week after differentiation. ③Differentiation for the monoclonal spheres was done to appraisal the proportion of neurons. NSCs were divided for several groups containing 0 μg/L, 50 μg/L, 100 μg/L, 150 μg/L, and 200 μg/L groups according to the doses of BDNF. EGF was added in the media of each group. Immunocytochemistry for NSE was done a week later to count the positive cells. MAIN OUTCOME MEASURES:Proportion of neurons differentiated from NSCs.RESULTS:①NSCs immunocytochemical staining showed that Nestin was positive in monoclonal spheres, and NSE and GFAP were positive in differentiated cells. ②The proportion of differentiation from NSCs into neurons was significantly higher in groups treated with 50 μg/L and 100 μg/L BDNF compared to other groups（t=2.502-5.025, P < 0.05）, but there was no significant difference between 50 μg/L and 100 μg/L BDNF groups（P > 0.05）. Moreover, no significant difference was detected among 0 μg/L, 150 μg/L and 200 μg/L BDNF groups (P > 0.05). CONCLUSION:The optimal concentration of BDNF is 50 μg/L for differentiation from NSCs into neurons while the concentration of EGF is 20 μg/L.

To explore the value of acoustic radiation force impulse (ARFI) technique in the differential diagnosis of benign and malignant hepatic neoplasms.Retrospective analysis of touch tissue quantification (VTQ) and general ultrasonic examination of interesting region were performed for hepatocellular carcinoma (HCC),hepatic hemangioma,focal nodular hyperplasia (FNH) and controls.Significant differences existed between HCC and hepatic hemangioma,hepatic FNH and controls (all P ＜0.01).No significant difference existed between primary and metastatic HCC (P ＞ 0.05).There was no significant difference between hepatic hemangioma,FNH and controls (all P ＞ 0.05).With a cut-off VTQ value of 1.95 m/s,the sensitivity and accuracy rate in the differentiation of benign and malignant hepatic neoplasms was 90％ and 83％ respectively.The sensitivity and accuracy rate in general ultrasound examination of hepatic neoplasms was 88％ and 70％ respectively.Significant differences existed in accuracy rate between two methods (P ＜ 0.01).It was confirmed that ARFI could reflect the stiffness of liver neoplasm noninvasively.Compared with general ultrasonography,ARFI is better at differentiating benign and malignant hepatic neoplasms.