Objective To evaluate the effect of catheterization on the serum prostate specific antigen (PSA) in acute urinary retention (AUR) patients due to benign prostate hyperplasia (BPH). Methods The data of 35 patients with AUR due to BPH were analyzed, and the changes in serum PSA values were compared before and after catheterization. The effect of AUR on serum PSA in BPH patients was discussed. Results It has been found that serum PSA declined from 9.93?8.85ng/ml to 6.46?5.75ng/ml after catheterization for the patients of AUR with BPH, and the values showed a significant difference (P0.05) in the patients in whom the serum PSA ≤4ng/ml, while a significant difference existed in both the group of patients in whom the serum PSA was 4~10ng/ml (from 5.95?1.43ng/ml to 4.09?2.00ng/ml, P10ng/ml (from 18.93?8.49ng/ml to 11.49?6.37ng/ml, P4ng/ml.

Objective To establish a model of homogenous bladder transplantation without blood vessel anastomosis in rat,and to investigate the outcome of the transplanted grafts.Methods 20 newborn SD rats were used as donors,and a total of 20 Wistar rats of 5-week-old were used as the reeipiemts for transplantation of homogenous bladder.The grafts were harvested from the SD rats,and they were wrapped with the greater omentum of the recipients without blood vessel anastomosis.Immunosuppressive agent was given postoperatively.10 rats were sacrificed on the 7th day and the remainings rats were sacrificed on the 14th day after bladder transplantation.The transplanted bladder grafts were observed grossly and microscupicully.Results Of 20 rats undergone homogenous bladder transplantation,19 rats were alive and the grafts were in good condition microscopically.There was no obvious rejection reaction in the transplanted bladders.The bladder mucosa,blood vessels and muscle layers of the grafts appeared to be normal microscopically.Conclusions The homogenous bladder transplantation into the omentum without blood vessel anastomosis in rats is considered to be a kind of stable animal model,with a higher survival rate of the tramsplanted bladder.

Objective To evaluate the long-term complications of continent ileocolic reservoir with in situ appendix conduit through umbilicus and their management.Methods We reviewed 37 patients with bladder diseases who underwent the surgery of continent ileocolic diversion with in situ appendix conduit through umbilicus and followed up for 85 to 136 months(mean 109 months).Long-term postoperative complications were documented.Results Complications occurred in 15 cases(40.5%),including stone formation in urinary pouch in 2 cases,efferent limb stricture and difficulty in catheterization in 3 cases,ureter stricture and hydronephrosis in 7 cases,foreign matter in urinary pouch in 2 cases,efferent limb mucosa exstrophy in 1 case.These complications were correctly treated and good results were achieved.Conclusion Long-term complications of continent ileocolic diversion with in situ appendix conduit through umbilicus were related to nursing in daily life after operation and unsuited design in operation.Nursing in daily life is considered very important in preventing postoperative complications.

Objective To determine the causative association between a newly isolated coronavirus and the current epidemic of severe acute respiratory syndrome (SARS) Methods Coronavirus was isolated from the samples of patients with SARS by cell culture Immunofluorescence assay and neutralization test were used to detect the antibodies in serum of SARS patients against newly isolated coronavirus, in order to analyze and determine the association between coronavirus and SARS pathogen Results The antibodies against the novel coronavirus could be detected in 99 of 113 sera from clinically diagnosed SARS patients The results of 10 pairs of double serum detection showed that, antibody titers in the late phase were significantly higher than those in the acute phase, and a highest increase by 128 folds was being found. The neutralization test showed that the antibodies from SARS patients' sera could neutralize the novel coronavirus Conclusion The newly isolated coronavirus was closely associated with and possibly the key pathogen of SARS

Drug addiction is a chronic and relapsing brain disease, which causes damage to the health of addicts seriously, and causes huge social problems. Relapse is one of the major characteristics of drug addiction, and is the main problem to be solved. In the past several decades, the mechanisms, high relapse rates, abstinence of addiction were studied. The Results of these research findings are summarized in this review to provide a better overview of the mechanisms and treatments of addition in order to provide ideas for further research.

To compare the chemical change of Paeoniae Radix Alba (PRA) after vinegar-baking processing, as well as the effect of vinegar types exerted on the processing, 1H NMR-based metabolomic approach combined with multivariate statistical analysis was used to investigate the different metabolites between the raw and two vinegar-baked PRA. More than thirty metabolites were identified in the 1H NMR spectrum of PRA, and the multivariate statistical analysis showed that raw and two vinegar-baked PRA could be separated obviously. After vinegar-baking, the contents of isoleucine, lactate, alanine, arginine, albiflorin, and 5-hydroxymethyl furfural (5-HMF) elevated, while those of sucrose, paeoniflorin and its analogues (calculated by benzoate) decreased. The chemical compositions of two vinegar-baked PRA were also different. Shanxi vinegar- baked PRA showed higher levels of leucine, isoleucine, valine, and albiflorin, while rice vinegar-baked PRA contained more sucrose and paeoniflorin's analogues (calculated by benzoate). And the chemical changes in Shanxi vinegar-baked PRA were greater than those of rice vinegar-baked PRA. The results revealed the chemical differences between raw and vinegar-baked PRA, as well as the influence of vinegar type on processing, in a holistic manner, the results obtained suggested that the correlations between the chemical change and the drug action after processing, as well as the vinegar type used in processing, should be further studied.
Acetic Acid ; Benzoates ; Bridged-Ring Compounds ; Cooking ; Drugs, Chinese Herbal ; Furaldehyde ; analogs & derivatives ; Glucosides ; Metabolome ; Metabolomics ; Monoterpenes ; Paeonia ; chemistry ; Plant Roots ; chemistry

Animals ; Intestines ; cytology ; drug effects ; physiology ; Meperidine ; pharmacology ; Mice ; Mice, Inbred Strains ; Muscle, Smooth ; drug effects ; physiology ; Rabbits

The effect of addition nucleotides on heparinase production by Flavobacterium heparinum was reseached. The result indicated that addition of nucleotides cause different effects on heparinase production depend on its addi ng mode, single kind of nucleotide would restrain, but multiplex promote. The s trongest promotion happened when the propotion of nucleotides was consistent wit h the nucleic acids of heparinase mRNA. HPLC result confined the entrance of nu cleoides to the bactera cell. And it also suggested the synthesis metabolic of nucleic acids in F.heparinum was imbalance, there always be higher lever of purin nucleoides. L-Asp was added to medium culture to enhance pyridine nucle oides thynesis in order to improve the enzyme production ,which has been affecte d by the imbalance of nucleoides.

Objective To explore the effects of chronic fluorosis on neurons in the cerebral cortex of rats,and to provide some morphological evidence of damage in the central nervous system induced by chronic fluorosis.Methods Male Wistar rats 40 days after birth were fed with high fluoride contented water(100 mg/L)for inducing chronic fluorosis.Immunocytochemistry and in situ hybridization were used to detect c-fos and Caspase 8 at cerebral cortical neurons respectively.Results c-fos positive cells rate and gray scale in the cerebral cortex of chronic fluorosis were 35.8%and 0.2756±0.0241,respectively,and that of control group were 32.1%and 0.2774±0.0331with statistical difference(χ2=0.305,t=0.826,P＞0.05).Caspase 8 positive cells rates of fluorosis group and control group were 18.7%and 14.1%,respectively,the difference being statistically significant(χ2=0.419,P＞0.05).The gray scale of fluorosis group and control group were 0.3874±0.0329 and 0.3884±0.0323,respectively,the difference being statistically significant(t=0.641,P＞0.05).Conclusion Chronic fluorosis had no significant influence on apoptosis of cerebral cortical neurons.

Objective To investigate effects of Kanglaite injection on proliferation, cycle and apoptosis of human breast cancer MCF-7 cells;To discuss its relevant mechanism. Methods Logarithmic growth phase cells were divided into control group and Kanglaite-treatment group (10, 20, 40μL/mL). Cells were cultured in RPMI-1640 for 24 h before drug treatment. The inhibition rate of Kanglaite injection on proliferation of human breast cancer MCF-7 cells was detected by MTT assay. Apoptosis and cell cycle of MCF-7 cells were detected by flow cytometry. Changes in cell nucleus were determined by Hochest staining assay. Protein expressions of Bcl-2 and Bax were detected by ELISA and Western blot. Results Kanglaite injection for 12 h, 24 h or 48 h resulted in a significant inhibition of MCF-7 cells proliferation (P<0.05, P<0.01);Compared with the control group, Kanglaite injection-treated cells showed increased percentage in G2/M and G0/G1 phases (P<0.001, P<0.01), but showed decreased percentage in S phase (P<0.01), and apoptosis rate increased (P<0.05, P<0.001). Kanglaite injection significantly decreased protein expression of Bcl-2, and enhanced protein expression of Bax of MCF-7 cells (P<0.01, P<0.001). Conclusion Kanglaite injection can inhibit the proliferation of human breast cancer MCF-7 cells, decrease cell cycle and induce apoptosis, the mechanism is related with decreasing protein expression of Bcl-2 and enhance the protein expression of Bax.