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This paper made some reflections on the development of traditional Chinese medicine(TCM) nephrology in recent years. It analyzed the strategic position and importance of social development in the field of prevention and treatment of diseases by TCM. Problems and puzzles on this subject had been summarized and countermeasures had been put forward. Preliminary conceptions on development strategies, goals and direction of TCM nephrology had been made.

Liver fibrosis can be classified as a wound-healing response to a variety of chronic stimuli,and is characterized by an excessive deposition of extracellular matrix(ECM)proteins.Hepatic stellate cells(HSCs)are presently regarded as one of the key cell types involved in the progression of liver fibrosis.Following a fibrogenic stimulus,HSC changes from a quiescent to an activated,collagen-producing cell.Each cellular response to extracelluar stimuli must be framed in a scenario.Along these lines,the identification and characterization of intracellular signaling pathways activated by different stimuli in HSCs represent a mandatory step.Drug targets which aim at the extra-cellular signals or intra-cellular cascades are required for ameliorating liver fibrosis.

Hepatic fibrosis is a pathological process in which excessive deposition of extracellular matrix components, occurs due to an imbalance between the production and degradation of matrix. Fibrosis is the hallmark of most chronic liver diseases. It is also the major factor of the development of chronic hepatitis and cirrhosis. Therefore, in light of the regulative factors on different levels and mechanism of fiber synthesis and degradation, antifibrotic medicine can inhibit the synthesis of matrix or increase its degradation on different links. The present situation concerning the study of the therapeutic effect of traditional Chinese medicine and natural medicine on hepatic fibrosis is reviewed.

Based on the "Grayscales average distribution" method which equally distributes the input gray levels to output gray levels, three improved methods named: "Reduce the gray range expressed by the less significant subfields", "Low levels preset" and "Modify the exponent of inverse-gamma function" are proposed in this paper. Using these methods, the inverse-gamma relation subfields code can be obtained easily which can improve the low level expressions of AC-PDP. And a program, "gray scales distribution validate program", which can enhance the expressions of the demanded gray levels range, is also proposed in this paper.

Objective: To explore the relationship between CDR1 and CDR2 expression and fluconazole-resistance in clinical Candida albicans strains, so as to explore the mechanism of drug-resistance in Candida albicans. Methods: The minimal inhibitory concentrations (MICs) of clinical Candida albicans strains to fluconazole were determined by broth microdilution method. The total RNA of fluconazole-susceptible and fluconazole-resistant Candida albicans strains were extracted, and the expression of the CDR1 and CDR2 genes was examined by real-time RT-PCR. The efflux of Rhodamine 6G was determined in the strains highly expressing CDR1 and CDR2 genes. Results: The incidences of CDR1 and (or) CDR2 overexpression in fluconazole-resistant strains were significantly higher than those in the fluconazole-sensitive stains. The efflux of Rhodamine 6G was significantly increased in the fluconazole-resistant strains when glucose was added, and overexpression of CDR1 and CDR2 were observed in theses strains. Some resistant strains showed no overexpression of CDR1 and CDR2. Conclusion: Fluconazole-resistance in clinical Candida albicans strains is related to the overexpression of ABC transporter proteins. Overexpression of ABC transporters can increase the efflux of drugs and therefore lead to drug-resistance. Other mechanisms may also participate in the development of drug resistance in the clinical Candida albicans strains.

Objective:To detect changes in mitochondrial membrane potential after sperm mother cell damage induced by bisphenol A by laser scanning confocal microscopy(LSCM) and underline its potential action mechanism.Methods: The cultured spermatogenic cells were divided into 3 groups, respectively. Then 0, 10μmol/L, 100μmol/L of Bisphenol A(BPA) were added into the culture, after 3 hours culture, fluorescence probe JC-1 was used to lable the three groups. The fluorescence intensity of JC-1 in mitochondrial was then detected by LSCM. LSCM software was used to analyze the fluorescence intensity. Change of the mitochondrial membrane potential was represented by the change of fluorescence colors (relative proportion of red and green fluorescence is commonly used to measure mitochondrial depolarization ratio). Results:The ratio between the red and green fluorescence in the control group, low dose group and high dose group had significant difference. Intracellular mitochondrial membrane potential of Bisphenol A treatment group was lower than that of the control group, while mitochondrial membrane potential of high dose group was lower than that of the low dose group. Conclusion: Bisphenol A could damage spermatocytes, and as the dose increased, the more serious the injury. The method could real-time monitor with high sensitivity the change of intracellular mitochondrial membrane potential.

Objective:To evaluate the surface free energy and Streptococcus mutans(S.mutans)adhesion on the surfaces of Co-Cr al-loy specimens fabricated by selective laser sintering(SLS)and casting method(SG and W280)respectively.Methods:The specimens of three groups were polished by SiC sandpaper.Surface morphology test,surface contact angle test and surface adhesion test of S.mu-tans were performed.Results:With the same surface roughness value,the surface contact angle of group SLS,W280 and SG was 66.200 ±3.112,74.212 ±3.206 and 67.238 ±2.047(P >0.05),the surface adhesion of S.mutans colone was 8.88 ±2.90,9.25 ± 2.05 and 8.50 ±1.85(P >0.05),respectively.Conclusion:The cobalt chromium alloy fabricated by SLS and casting method have similar surface performance.

Objective To explore effects of different doses of 60Co γ-ray irradiation on apoptosis of rat submandibular gland dells.Methods Wistar rats were randomly divided into four different radiotherapy dosage groups (0 G y,7.5 G y,15 Gy,and 22.5 Gy).Rats in each radiotherapy groups were irradiated by the required dose of γ-ray irradiation (0 Gy,7.5 Gy,15 Gy,22.5 Gy) at one time.Immunohistochemistry method and TdT-mediated dUTP nick end labeling (TUNEL) methods were used to detect expression of P53,caspase-3,and apoptosis of submandibular gland dells in rats.Results The expression levels of P53 and caspase-3 of rat submandibular cells were significantly increased in different radiotherapy dosage groups (7.5 G y,15 Gy,and 22.5 Gy) relative the 0 Gy dosage group.The apoptotic cells were more commonly seen in duct cells in different radiotherapy dosage groups,and the apoptotic cells were gradually increased with the increased radiotherapy dosages.Conclusions 60 Co γ-ray irradiation could lead to apoptosis of rat submandibular gland in the early stage.There is a dose-effect relationship between 60Co γ-ray irradiation and induced apoptosis of rat submandibular gland cells.