Response surface methodology (RSM) based on a three-level three-factor Box-Behnken design of experiments was used to optimize the extracellular polysaccharide content and the mycelium biomass by submerged cultivation using Pholiota squarrosa AS 5.245. The critical factors selected for the investigation were temperature, time of cultivation and volume of medium, based on the results of our previous Plackett-Burman design. The objectives of this present work were to locate optimum levels of these process parameters, and to find out interactions among them for enhancement of the yield of extracellular polysaccharide and mycelium biomass. By solving the regression equation and also by analyzing the response surface contour plots, the optimal process conditions were determined: under conditions of temperature, 28.07℃; cultivation time, 8.79 d and volume of medium, 68.51 mL, the prediction of extracellular polysaccharide content (EPC) by Pholiota squarrosa AS 5.245 was 1062.69 ?g per milliliter of fermentation liquor. While cultivation temperature, time and volume of medium were 27.60℃, 9.42 d and 54.20 mL respectively, the mycelium biomass expressed as dry cell weight (DCW) was 11.32 mg?mL -1. In order to simultaneously obtain the maximum yield of EPC and DCW, the above conditions would be located at 27.62℃, 9.19 d and 64.10 mL. In these conditions, the maximum predicted yield of EPC and DCW were found to be 1050.64 ?g?mL -1 and 11.10 mg?mL -1, respectively. These predicted values were also verified by validation experiment.

A total of 906 subjects with no history of diabetes who had undergone coronary angiography were included in this study and categorized into four groups according to the level of fasting plasma glucose (FPG):≤5.5 mmoL/L,5.6-6.0 mmol/L,6.1-6.9 mmoL/L,and ≥ 7.0 mmol/L.Significant coronary artery disease (CAD) was defined as ≥ 50％ reduction of lumen diameter at least in one major coronary artery.The severity of coronary atherosclerosis was defined by the Gensini score.The clinical data,laboratory indexes,and coronary angiography results were compared among various groups.The risk factors for the prevalence and severity of angiographic CAD were analyzed.The results showed that the prevalence of angiographic CAD,the number of diseased vessels,and the Gensini score were increasing with increasing FPG levels among four groups (P＜0.05 or P＜0.01).The FPG level was significantly correlated with angiographic CAD (P =0.004) and the Gensini score (P =0.010),suggesting that FPG was an independent risk factor for the prevalence and severity of angiographic CAD.

Epilepsy ; diet therapy ; metabolism ; Food-Drug Interactions ; Humans ; Ketone Bodies ; biosynthesis

Adolescent ; Cerebellar Diseases ; diagnosis ; drug therapy ; etiology ; Cerebellum ; physiopathology ; Child ; Child, Preschool ; Cognition Disorders ; diagnosis ; drug therapy ; etiology ; Female ; Humans ; Infant ; Male ; Mood Disorders ; diagnosis ; drug therapy ; etiology

Objective: Changes in the ?2 integrin of adhesion molecules between cells are closely associated with the invasion and migration of tumor cells.This study aimed at the effect of anti-?2 integrin on the invasion and migration of osteosarcoma MG63 cells. Methods: The osteosarcoma MG63 cell line was cultured in the DMEM medium.The effect of the anti-?2 integrin monoclonal antibody on the migration and invasion of tumor cells were measured by scratch assay and Transwell assay.The migration and invasion cells were stained by Crystal violet staining and counted under the hundredfold microscope.Results: Compared with the control group,the migration and invasion abilities of the MG63 cells were significantly decreased in the anti-?2 treatment groups.Conclusion: Anti-?2 integrin may inhibit the migration and invasion of osteosarcoma cells.

Objective To investigate the case of left-semicolon cancer with intestinal obstruction for the methods of one-stage resection and anastomosis.Methods The clinical data of ten patients with left-semicolon can- cer with intestinal obstruction treated by transanus ilues tube,were restrospectively analyzed from October 2004 to December 2006.Results No postoperative anastormotic leakage was found and the patients were clinically cured. Conclusion The technical problem that left-semicolon cancer with obstruction for one-stage resection and anastomo- sis was resolved by the application of transanus ilues tube.

To study the pharmacokinetics characteristic of loganin, ferulic acid and stilbene glucoside in rat plasma after oral administration of Bushen Tongluo formula. The plasma samples were treated by using liquid-liquid extraction technique, the concentrations were determined by HPLC-UV. Johnson spherigel C18 column (4.6 mm x 250 mm, 5 μm) was adopted and eluted with the of mobile phase of methanol-water containing 0.01% glacial acetic acid in a gradient mode, with the flow rate at 1.0 mL x min(-1), column temperature at 30 degrees C and injection volume of 10 μL. According to the findings, loganin was determined at 235 nm, ferulic acid and stilbene glucoside were determined at 320 nm, with the sample size of 10 μL. The pharmacokinetic parameters of loganin, ferulic acid and stilbene glucoside were calculated by DAS 2. 0 software as follows: C(max) was (0.369 ± 0.042), (0.387 ± 0.071), (0.233 ± 0.044) mg x L(-1); t(max) was (0.226 ± 0.022), (0.282 ± 0.031), (0.233 ± 0.044) h; t(½β) was (6.89 ± 0.20), (10.73 ± 0.11), (6.93 ± 0.09) h; AUC(0-∞) was (1.91 ± 0.36), (3.22 ± 0.52), (1.52 ± 0.33) mg x h x L(-1); AUCO(0-t) was (1.62 ± 0.33), (2.58 ± 0.43), (1.30 ± 0.30) mg x h x L(-1); CL was (20.2 ± 4.0), (1.39 ± 0.23), (31.7 ± 6.9) L x h(-1) x kg(-1), respectively. The results showed that after the oral administration with Bushen Tongluo formula, loganin, ferulic acid and stilbene glucoside showed concentration-time curves in conformity with the two compartment model, with a rapid absorption, loganin and stilbene glucoside was excreted at a moderate speed, and ferulic acid was excreted slowly (but with the highest bioavailability). Bushen Tongluo formula can main maintain plasma concentration with three administrations everyday and so is suitable to be made into common oral preparation.
Administration, Oral ; Animals ; Biological Availability ; Coumaric Acids ; administration & dosage ; blood ; pharmacokinetics ; Drugs, Chinese Herbal ; administration & dosage ; analysis ; pharmacokinetics ; Glucosides ; administration & dosage ; blood ; pharmacokinetics ; Iridoids ; administration & dosage ; blood ; pharmacokinetics ; Male ; Rats ; Rats, Sprague-Dawley ; Stilbenes ; administration & dosage ; blood ; pharmacokinetics

OBJECTIVETo investigate the blood supply of the pedicle fat grafts with the third lumbar segmental artery and its clinical effects on reoperation for lumbar disc herniation.

METHODSTwelve sides of 6 adult cadaver examples were contributed to investigate the courser of lumbar segmental vessels and the distribution of hypodermic capillary net of the dorsal branch of the third lumbar segmental artery. From January 2000 to January 2007,49 patients needed reoperation to treat lumbar disc herniation,including 26 males and 23 females with an average age of 55.6 years (ranged from 39 to 70 years). Duration between two operations ranged from 8 months to 15 years with an average of 6.9 years. Reoperative reasons included recurrent lumbar disc protrusion(30 cases)postoperative epidural scar formation (17 cases), postoperative epidural cyst formation (2 cases). Of them,9 patients underwent posterior lumbar interbody fusion at the second operation. The pedicle fat grafts with the third lumbar segmental artery were covered on the sites of the laminectomy in these patients. After negative pressure drainage tube were pulled out, 2 ml Chitsan were injected to the sites of the laminectomy and around epidural nerve root through epidural catheter. VAS score and the Oswestry Disability Index (ODI) were used to assess clinical outcomes before and after operation.

RESULTSThe courser of third lumbar segmental vessels were invariant at the lateral face of the lumbar vertebral body. The dorsal branch of the third lumbar segmental artery penetrated thoracolumbar fascia and formed rich hypodermic capillary net in the region. All patients were followed up from 5 to 8 years with an average of 5.6 years. VAS score of low back pain and leg pain decreased respectively from preoperative 7.6 +/- 1.2, 8.9 +/- 0.9 to 3.6 +/- 0.5, 3.0 +/- 0.4 at final follow-up (P < 0.01); and ODI score decreased from preoperative 44.1 +/- 6.2 to 13.9 +/- 3.6 at final follow-up (P < 0.01). According to ODI score to evaluate the clinical outcomes, 29 cases got excellent results, 11 good, 7 fair, 2 poor.

CONCLUSIONThe pedicle fat grafts with the third lumbar segmental artery and Chitsan can reduce epidural scar formation and prevent peridural fibrosis and adhesion and improve clinical effects of reoperation for lumbar disc herniation.

Adipose Tissue ; pathology ; Adult ; Aged ; Arteries ; pathology ; physiopathology ; Female ; Follow-Up Studies ; Humans ; Intervertebral Disc Displacement ; pathology ; physiopathology ; surgery ; Lumbar Vertebrae ; blood supply ; pathology ; surgery ; Male ; Middle Aged ; Reoperation ; Transplantation ; Treatment Outcome

To improve 3-ketosteroid-△1-dehydrogenase(KSDH) activity and the transformation level for androst-4-ene-3,17-dione, 3-ketosteroid-△1-dehydrogenase gene(ksdD) from Arthrobacter simplex was cloned into plasmid pWB980 and expressed in B. subtilis WB600 under the control of promoter P43. The molecular weight of expressed enzyme was about 55kDa by SDS-PAGE analysis. The activitities assayed by spectrophotometrical method of intracellular and extracellular soluble enzyme were 110?0.5mU and 15?0.6mU per milligram of protein respectively. The transformation rate of androst-4-ene-3,17-dione by the B. subtilis recombinant cells was 45.3%. Compared with Arthrobacter simplex, the enzyme activity of KSDH expressed in B. subtilis was improved about 30 fold, and the transformation level of androst-4-ene-3,17-dione by the B. subtilis recombinant cells was improved about 10 fold. The recombinant B. subtilis cells used in biotransformation of steroids provided a new way for steroid medicines production.

Objective To investigate the appropriate and pragmatic drainage after the breast cancer by radi- cal surgery.Methods 120 patients treated by the radical surgery from July 2003 to July 2005,were divided into the experimental group(ring-like double tubes with negative pressure drainage) and the control group(armpit single tube drainage with pressure bind).The differences between the two groups were analyzed in the same period,respectively sixty cases.Results The outflow of the first three days after operation in the experimental group was more than that in control group(P0.05).The incidence of sinoma and incision delaying healing in experimental group was lower than that in con- trol group(P