Objective To study the effects of metallothionein(MT) egg-milk power on excluding lead in vivo in saturnic rats.Methods A total of 60 Wistar rats were randomly divided into four groups: control(n=20),black control(n=10) and lead-treated groups(n=30).After the rats in lead-treated group were treated with 0.2% lead acetate daily for three weeks,they were randomly divided into two groups: lead-treated group(n=10) and MT egg-milk power treated group(n=20).The rats in the last group were treated with MT egg-milk power for three weeks.At the end of the experiment,samples of whole blood,liver,kidney,brain,femur,faeces and urine were collected for lead detection by atomic absorption spectroscopy.Results As compared with controls,the lead content of samples were significantly elevated in lead-treated rats(P

This study was aimed to investigate Baishile Capsule on behavior, memory and expression of SYN I and SYNA in hippocampal CA3 region of depression model rats. SD rats were randomly divided into six groups, which were the control group, depression model group, fluoxetine hydrochloride group, and the Baishile Capsule group (2.88 g·kg-1, 1.44 g·kg-1, 0.72 g·kg-1). The chronic stress depression model rats were established by chronic and mild unpredictable stressors as described in the literature. In the model group, medicine was intragastricly administered once per day and continued for 21 days. In the control group and model group, same volume of distilled water was intragastricly administered. The open-field test, preference for 1% sucrose solution, Morris water maze, and rate of weight were carried out and observed. Immunohistochemistry and in situ hybridization were used in the observation of the expression of SYN I and SYNA in each group of model rats. The results showed that high-dosage Baishile Capsule can significantly increase the horizontal and vertical activities of score after two-week treatment (P< 0.01). The middle-dosage Baishile Capsule can significantly increase the horizontal activity of score after three-week treatment (P< 0.05). The rat's preference for sucrose solution was obviously increased in the high-dosage group after one-week treatment and in the middle-dosage group after three-week treatment (P< 0.01, or P< 0.05). The rate of weight of rats was obviously increased in the high-dosage group after two-week treatment and in the middle-dosage group after three-week treatment (P< 0.01, or P< 0.05). The high-dosage and middle-dosage Baishile Capsule can shorten EL, and significantly increase the number of target quadrant. The high-dosage Baishile Capsule can obviously shorten the target quadrant latency (P< 0.05). Compared with the model group, the immunohistochemistry and in situ hybridization showed high-dosage Baishile can significantly promote the expression of SYN I and SYNA in hippocampal CA3 region; and the middle-dosage group can enhance the expression of SYNA (P < 0.05, or P <0.01). It was concluded that Baishile Capsule can obviously improve the behavior and the expression of SYN I and SYNA in hippocampal CA3 region of depression model rats.

Objective To investigate the changes of expression of N-methyl-D-aspartate receptor(NMDAR)and mitogen activated protein kinase(MAPK)in Alzheimer disease(AD)rat model. Methods AD rat model was established by injection of amyloid-beta protein 1-40 1?l(10 g/L)into hippocampus of rat.NMDAR-mRNA and MAPK protein were immunostained by in situ hybradization histochemistry and immunohistochemistry respectively.Learning and memory ability,LTP were determined by Morris water maze and electrophysiological methods respectively. Results The escape latent was prolongated in Alzheimer rats two weeks after injection of A? than in control rats and in rats before the injection of A?(P

Objective To evaluate and analyse the efficacy and safety of endoscopic papillectomy for tumors of major duodenal papilla.Methods The clinical data of thirty-four patients with tumors of major duodenal papilla who were treated by endoscopic papillectomy were retrospectively reviewed,and the clinical outcome was summarized.Results The success rate of endoscopic papillectomy was 94.12％ (32/34),and the complete resection was 66.67％ (20/30).Short-term complications occurred in 10 cases,including postoperative gastrointestinal bleeding in 7cases and postoperative pancreatitis in 3 cases.Five cases need further surgical intervention for the reason that tumor was too deep in 2 cases,bile duct was invaded in 2 cases and conservational medication was unsuccessful in 1 case.Thirty-three cases were pathologically diagnosed as low grade intraepithelial neoplasia (LGIN),17 cases high grade intraepithelial neoplasia (HGIN),1 case carcinoid and 3 cases adenocarcinoma.The recurrence rate was 23.33 (7/33).tumor recurrence rate of HGIN was higher than that of LGIN(42.86％ VS10％,P =0.078).Conclusion Endoscopic papillectomy is an effective method for treating tumors of major duodenal papilla,however,hemorrhage is the main postoperative complication,the recurrence rate is higher in HGIN group.

Objective To investigate the influence and mechanism of erythropoietin (EPO) in renal blood flow after limb ischemia reperfusion (LIR). Methods Thirty male SD rats were randomly divided into control group, LIR group and EPO+LIR group with ten in each group. The values of renal blood flow, plasma creatinine (Cr), urea nitrogen (BUN) content in plasma, kidney tissue wet to dry ratio (W/D), nitric oxide (NO), nitric oxide synthase (NOS) and endothelin-1 (ET-1) in re-nal tissue were detected in three groups. The immunohistochemistry assay was used to detect the expression of intercellular adhesion molecule (ICAM-1) and vascular cell adhesion molecule (VCAM-1) in renal tissue. The morphological changes of renal tissue were observed with light microscope. Results The renal blood flow was significantly decreased, while the val-ues of Cr, BUN, W/D, NO, ET-1, NOS, expressions of ICAM-1 and VCAM-1 was significantly increased in LIR group than those of control group (P<0.05). Broaden interstitial and infiltration of inflammatory cells were observed in the renal tissue under light microscope. In the EPO+LIR group, the renal blood flow increased, the values of Cr, BUN, W/D, NO, ET-1 and NOS, expressions of ICAM-1 and VCAM-1 decreased significantly compared with those of LIR group (P<0.05). The patho-logical changes were alleviated in EPO+LIR group. Conclusion EPO can improve renal function, increase renal blood flow in rats after LIR. The mechanism may be related to the decreased edema, changed renal vasomotor function and decreased in-flammation.

Objective To explore the effectiveness and safety of limited endoscopic sphincterotomy plus endoscopic papillary balloon dilation (ESBD)for patients with large common duct stones and periampul-lary diverticula (PAD).Methods Data of 40 patients with large common duct stones (diameter ≥10 mm) and PAD who underwent ESBD were retrospectively reviewed.The clinical feature,operation method,suc-cess rates of stone removal and early complications rates during hospitalization were evaluated according to PAD subtypes.Results The stone removal rate in first session was 90.0%(36 /40,with a median time of 29 minutes per procedure.Three patients underwent a second procedure to remove residual stones.The over-all stone removal rate was 97.5% (39 /40).The early complications rate was 15%(6 /40),including mild pancreatitis in two cases(5%),hyperamylasemia in two (5%),postoperative late bleeding in two (5%), which were cured with conservative treatment.No perforation,massive hemorrhage or death occurred.No significant differences in success stone removal rate and early complication rate were found between PAD sub-types.Conclusion ESBD is an effective and safe procedure for removing choledocholithiasis in patients with PAD,regardless of PAD subtypes.

Objective:To investigate the association between glutathione S-transferase pi (GSTP1) gene polymorphism and toxici-ties related to high-dose methotrexate (HD-MTX) in children with acute lymphoblastic leukemia (ALL). Methods:GSTP1 genotypes and allelic frequencies in 51 children with ALL were determined by Nest PCR, denaturing gel gradient electrophoresis (DGGE), and DNA sequencing. HD-MTX adverse reactions were analyzed using the National Cancer Institute Common Toxicity Criteria (NCICTC). Results:We identified three SNPs of GSTP1, including rs1695 (A313G), rs1138272 (G439T), and rs4891 (T555C). The wild types, het-erozygous types, and homozygous types of GSTP1 rs1695/rs4891 polymorphisms were detected in 32 cases (62.7%), 16 cases (31.4%), and 3 cases (5.9%), respectively. GSTP1 rs1695/rs4891 polymorphisms included only one heterozygous type and one homozygous type. The allele frequencies of the three SNPs were 21.6%, 2.9%, and 21.6%. The AG+GG/TC+CC genotype of GSTP1 rs1695/rs4891 was associated with decrease in the odds of peripheral hemoglobin (OR=0.25, 95%CI=0.06-1.00, P=0.049). The AG+GG/TC+CC genotype of GSTP1 rs1695/rs4891 in standard and intermediate-risk ALL children was significantly correlated with higher odds of gastrointesti-nal toxicity (OR=0.125, 95%CI=0.02-0.78, P=0.026). Conclusion:GSTP1 rs1695 (A313G)/rs4891 (T555C) gene polymorphism is as-sociated with the reduction of peripheral hemoglobin in ALL children and with the odds of gastrointestinal toxicity in standard and inter-mediate-risk ALL children who receive high-dose methotrexate.

OBJECTIVE:To investigate the effects of puerarin on bone mineral density around the femoral prosthesis of el-derly women after osteoporotic fracture artificial hip joint replacement. METHODS:99 elderly women after osteoporotic fracture artificial hip joint replacement were divided into control group(49 cases)and test group(50 cases)according to random number table. Control group received conventional treatment:calcium carbonate and vitamin D3+alendronate sodium+salmon calcitonin;test group was additionally given Puerarin injection 200-400 mg dissolved in Glucose injection 500 ml intravenously,qd,on the basis of control group. A treatment course lasted for 20 d,and both groups received 2 courses of treatment. The hip joint function score and bone mineral density around the femoral prosthesis of 2 groups were observed and compared after surgery,and the oc-currence of ADR was also observed. RESULTS:3 and 2 patients withdrew from control group and test group,respectively. 18 months after surgery,the patients with hip joint function score ranged 70-79 in test group was significantly less than in control group;the rate of excellent hip joint function score in test group was significantly higher than in control group,with statistical significance (P<0.05). 15 and 18 months after surgery,bone mineral density in R1-R5 range of Gruen range in test group was slightly higher than in control group,without statistical significance(P>0.05);bone mineral density in R6-R7 range was signifi-cantly higher than control group(89.58% vs. 69.57%),with statistical significance(P<0.05). The prosthesis loosening was not found in both groups,and ADR was also not found as fever,erythra,nausea,vomiting,headache,dizziness,etc. CONCLU-SIONS:For the use of puerarin in elderly women after osteoporotic fracture artificial hip joint replacement,puerarin can increase the periprosthetic femur bone mineral density with good safety.

Objective To study the relationship between the type of histopathology and prognosis of contained mucous adenocarcinoma(CMAC) of stomach and its clinical significance. Methods Eighty-seven cases of CMAC of stomach were observed by means of pathomorphology, histochemistry, immunohistochemistry and follow up etc. Results The malignant behavior of the cancer was significant difference according to the nature and quantity of the CAMC and the primary pathological type of the cancer.The clinical type in simple mucous carcinoma was mainly Borrmann type I;in tubular papilla mucous adenocarcinoma was mainly Borrmman type II; in signet-ring cell mucous carcinoma was mainly Borrmman type IV,and in mixed cell mucous carcinoma was mainly Borrmman type III. There was significant difference in the lymphatic metastasis and survival rate between the 4 groups. Conclusions Correct differentiation of the pathological type of contained mucous adenocarcinoma of stomach is important for guading the treatment and predicting the prognosis.Cathepsin D expression can help for understanding the biological behavior of CMAC of the stomach.

Objective To screen the optimized Buyang Huanwu Decoction (BYHWD);To verify it. Methods H2O2 was used to induce PC12 cell oxidative stress models. MTT method was used to determine the prevention effects of BYHWD at different concentrations (0.1, 0.2, 0.5, 1.0, 2.0, 3.5 mg/mL) on in vitro oxidative stress cell models to define the optimized concentration. Orthogonal design was used to divide BYHWD single medicine into decomposed BYHWD groups, control group (only with DMEM), normal group (without H2O2 and medicine processing), and model group, to investigate the protective effects on PC12 cells. Optimized BYHWD was screened to decide the compatibility ratio of each medicine. MTT was used to detect the cell survival rate in each group. Middle cerebral artery occlusion was used to replicate MACO rat models. SD rats were randomly divided into sham-operation group, model group, BYHWD group and optimized BYHWD high-, medium-and low-dose groups. Each medication group was given relevant medicine for gavage. The screened results were verified. Results Compared with other decomposed BYHWD groups, the protective effects of the compatibility of Astragali Radix+Chuanxiong Rhizoma+Pheretima on PC12 cells was the best (P<0.05), which was nearly equaled to BYHWD. Compared with the model group, BYHWD and the optimized one could evidently reduce cerebral cortex infarction area and improve the impaired brain edema (P<0.05), and the medium-dose group was the best. Conclusion The optimized BYHWD ratio is:Astragali Radix:Chuanxiong Rhizoma:Pheretima=10:3:1.