BACKGROUND: Osteoporosis has been one of the main reasons for old people' s in decline living standard and shortening of lifespan. The onset of osteoporosis is related to the loss of functional coupling in osteoblast and osteoclast. So observation of the regulative effect of medicines on osteoblast is a good method to evaluate their preventive and therapeutical efficacy in osteoporosis.OBJECTIVE: To investigate the effects of genistein on osteoblast culture in vitro.DESIGN: A randomined, controlled and single-blind study based on rat osteoblasts.SETTING: Department of laboratory in amunicipal hospital.MATERIALS: The experiment was completed in the Room of Isotope, Department of Nuclear Medicine, China-Japan Friendship Hospital of Beijing from February to December 2001. Ten SD rats of 24 hours old were provided from Beijing Weitong Lihua Experimental Animal Ltd. Co. (license:SCXK11-00-0008 ). The laboratory was SPF grade.METHODS: Skull osteoblasts of rats were selected to culture in vitro. Microculture tetrozolium, p-nitrophenyl phosphate, atomic absorptiometry and alizarin red were used to observe the effect of genistein on proliferation,activity of alkaline phosphatase(ALP), contents of matrix calcium and the number of mineral nodes of osteoblasts cultured in vitro.MAIN OUTCOME MEASURES: Morphological observation, determination of proliferation ratio, ALP stain, determination of matrix calcium accumulation and number of mineralized nodes with alizarin red stain.RESULTS: It was found that genistein stimulated the proliferation of osteoblasts, improved the ALP activity, and increased the contents of matrix calcium and the number of mineral nodes in cultured osteoblasts.CONCLUSION: Genistein has the effects on stimulating the proliferation,differentiation, maturation and mineralization of osteoblasts cultured in vitro.

OBJECTIVE: To optimize the preparation technology of Buqi tongmai capsule.METHODS: Orthogonal experiment of exeracting Radix Astragali was conducted with crude drugs soaking time,extracting times,amount of water added and decocting duration as factors and the content of astragaloside as index.Orthogonal experiment of exeracting Salvia miltiorrhiza,Ligusticum chuanxiong,Fructus Aurantii Immaturus,Carthamus tinctorius was conducted with crude drugs soaking time,amount of water added and decocting duration as factors and the content of tanshinol as index.RESULTS:Water was adopted for extraction and the concentration of alcohol for precipitate was 70 percent.The optimal technology of exeracting Radix Astragali was to soak the crude drugs for 30 min,decoct for 90 min in 10 times of water for 2 times.The optimal technology of exeracting S.miltiorrhiza,L.chuanxiong,Fructus Aurantii Immaturus,C.tinctorius was to decoct the crude drugs for 90 min,8 times of water for 2 times.CONCLUSION:The preparation processes is feasible,stable and meet the demands in the clinic.

OBJECTIVE: To investigate the therapeutic effects of the image navigation system in nasal endoscopic surgery in treatment of basicranial tumor. METHOD: Retrospective analysis was carried out in 17 patients with basicranial tumor who underwent nasal endoscopic resection via image navigation system. The accuracy of image navigation system, operation procedure time, curative effect and complications were analyzed and summarized to evaluate the effect. RESULT: The image navigation system provided an accurate anatomical localization 0.5-2.0 mm localization error (mean 1.2 mm). The operation procedure time was 1.5-3.0 h. Postoperative complications occurred in 3 of 17 patients including cerebrospinal fluid rhinorrhea and injury of sieve plate. Two patients recrudesce within half a year. CONCLUSION The image navigation system in combination with a nasal endoscope is helpful in the resection of basicranial tumor with minimal trauma, increasing the curative effect and avoiding complications.
Cerebrospinal Fluid Rhinorrhea ; Endoscopy ; Humans ; Nasal Surgical Procedures ; methods ; Neoplasm Recurrence, Local ; Neoplasms ; surgery ; Nose ; Postoperative Complications ; Retrospective Studies ; Skull Base ; surgery ; Surgery, Computer-Assisted ; methods

Objective o explore intraperitoneal human fluorine safe release chemotherapy after radical surgery on the prognosis of patients with gastric cancer.Methods One hundred gastric cancer patients who were treated in Jinshan Hospital Affiliated to Fudan University from June 2011 to September 2012 were selected and divided into observation groups (gastrectomy + Human fluorine An chemotherapy) and control group (simple gastrectomy) according to a random number table method.Biochemical index before treatment and 7 d after treatment,complication occurrence and survival rate of two groups were compared.Results There were no statistically significant differences in terms of WBC,PLT,IBIL,Cr and other biochemical markers before and after treatment between the two groups (P＞0.05).There were statistically significant differences in terms of chemical peritonitis,intestinal obstruction,fistula,intestinal perforation and other complications between two groups (P＞0.05).The 6 months,1 year,2-year survival rates of control group were 87.50％,80.00％,62.50％,of observation group were 96.67％,90.00％,78.33％,the differences were significant (x2 =6.108,8.796,4.579;P=0.014,0.003,0.032).The 6 months,1 year,2-year free survival rates of control group were 75.00％,55.00％,35.00％,of observation group were 93.33％,86.67％,70.00％,the differences were significant (x2 =3.902,6.635,5.203;P =0.045,0.010,0.021).Conclusion Intraoperative intraperitoneal chemotherapy sustained radical surgery in patients with no adverse effects on the stomach,can effectively improve the postoperative survival rates,worthy of promotion.

Background:Acute hepatic failure( AHF)is a common pathophysiological process of end-stage liver disease with complex etiology,difficulty in diagnosis and high mortality rate. Aims:To investigate the protective effect of nicotinamide on AHF in mice. Methods:AHF model in mice was established by intraperitoneal injection with D-galactosamine 700 mg/kg and lipopolysaccharide 10 μg/kg. Fifty-four mice were divided into blank control group,nicotinamide control group, AHF model group and low,moderate,high dose(400,800,1 000 mg/kg)nicotinamide groups,levels of ALT,AST, TNF-α and IL-6 were determined,HE staining was used to examine hepatic histological injury,liver cell apoptosis was measured by TUNEL assay,and protein expression of Caspase-3 was detected by Western blotting. Another 40 mice were divided into AHF model group,saline group and low,moderate,high dose(400,800,1 000 mg/kg)nicotinamide groups,mortality rate was observed dynamically. Results:Compared with blank control group and nicotinamide control group,levels of ALT and AST were significantly increased(P<0. 05),infiltration of inflammatory cells and necrosis of cells and levels of TNF-α and IL-6 were significantly increased( P <0. 05 ),and apoptosis of liver cells and protein expression of Caspase-3 were significantly increased in AHF model group(P <0. 05). In groups pretreated with low, moderate and high dose nicotinamide,all the above-mentioned indices were significantly improved in a dose-dependent manner(P<0. 05). Survival rate in low,moderate,high dose nicotinamide groups was significantly higher than that in AHF model group(37. 5%,62. 5%,100% vs. 0%,P all <0. 05). Conclusions:Nicotinamide could protect mice from AHF via inhibiting inflammatory response and hepatocyte apoptosis,thereby increase the survival rate.

Objective To study the mechanism of paraquart-induced renal injury in rats,the expression of heine oxygenase-2(HO-1) and inducible nitric oxide synthase (iNOS).Methods 84 adult healthy Spragne-Dawley (SD) rats (female and male in half) were randomly divided into two groups,the control group (group A,n=42) and the paraquart group (group B,n=42).The rats in group B were treated with paraquart (25 mg/kg) intraperitoneally,the rats in group A were treated with the same dose of normal saline.Its histopathological change,the expression of HO-1,iNOS and evaluate the mRNA expression of HO-1 were observed.Results ①In group A,the tissue structure was clear without abnormal.In group B,there were obvious lesions in the renal tubule of cortical part,including cellular swelling,the canula narrow,the mesenchymal congestion and edema.These pathologic changes gradually reached the peak on the 1st day,and did not relieved till the end ofthis study.②In group A,there was no or weak expression of iNOS.At the 3rd hour,the expressions of iNOS in group B were observed in the kytoplasm of renal tubular epithelial cell and glomemlar endothelial cell of cortical part.It reached the peak on the 1st day and continued at a high level after that.③ In group A,there was no or weak expression of HO-1 and HO-1 mRNA.At the 3rd hour,the expressions of HO-1 in group B were observed in the membrane and kytoplasm of renal tubular epithehal cell of cortical part,immunohistochemistry score(IHS) was higher,the expression of HO-1 mRNA increased,there was a statistical significance between group B and group A(P<0.05).It reached the peak on the 1st day,and then decreased,there were 110 statistical difference between group B and group A on the 5th day(P>0.05).Conclusions HO-1 and iNOS ale involved in the procedures of renal injury,but its mode of action and regulating path still need further study.

Objective To evaluate the diagnosis and treatment of chronic pancreatitis complicated by stricture and dilation of the pancreatic duct. Methods The clinical data of 27 patients of chronic pancreatitis with stricture and dilation of the pancreatic duct undergoing operation in our hospital from 1990 to 1999 were analyzed retrospectively. Results Of the 27 patients, the positive diagnosis rate was 89% by B-US, 100% by CT, 100% by MRCP, 100% by ERCP. All patients received surgical operation, 12 patients received Partington procedure, 3 distal pancreatectomy, 4 pylorus preserving pancreaticoduodenectomy, 4 Beger procedure, 2 Frey procedure, 2 pancreatic cystojejunostmy. The complication rate was 11%. Postoperatively 89%(24/27) patients achieved pain relief,78%(18/23) gained in body weight, and diabetes significantly relieved in 5 cases(33%). Conclusion Appropriate diagnosis and treatment are very important for improving the patients′ life quality and natural history of chronic pancreatitis with stricture and dilation of the pancreatic duct.

Objective: To investigate the effect of ceramic bovine bone (CBB) combined with hydrogel complex (CBB/HG), ?-tricalcium phosphate (?-TCP) combined with hydrogel complex(?-TCP/HG) on the osteogenesis of bone marrow stromal cells (MSCs) in vitro. Methods: MSCs(induced by 50 mg/L ascorbic acid,10 -8 mol/L dexamethasone and 0.01 mol/L ?-sodium glycerylphosphate) were cultured on CBB/HG , ?-TCP/HG,CBB and ?-TCP respectively. 5 and 10 days after set up, marrow stromal cell attachment and morphology were observed by scanning electronic microscope, the proliferation of the cells was evaluated by cell counting, Alkaline phosphatase(ALP) activity was tested,typeⅠcollagen synthesis were examined by immunohistochemistry stainning. Results: On day 5 and 10 the marrow stromal cells on CBB/HG and on ?-TCP/HG were significantly more than those on CBB or ?-TCP. TypeⅠcollagen synthesis and ALP activity of the cells on CBB/HG and ?-TCP /HG were not different but significantly higher than those on CBB or ?-TCP. Conclusion: CBB/HG and ?-TCP /HG may stimulate bone marrow stromal cell proliferation, differentiation and extracellular matrix synthesis.

Objective To explore the feasibility and clinical efficacy of hand assisted laparoscopic splenectomy (HALS) for ruptured spleen. Methods From January 2002 to October 2002, HALS was performed in 12 cases, among whom were 8 cases combined with other viceral trauma. Results HALS was accomplished successfully in 10 cases and laparotomy in 2. In 10 cases, the operation time of HALS averaged 102.5 minutes. The mean post operative hospitalization was 5.8 days in 4 cases with only spleen trauma and 15.5 days in 6 combined with other viceral trauma. Conclusions HALS is a feasible, effective and safe surgical procedure for the cases with Buntain CT scalingⅡ or Ⅲ spleen trauma with no severe combined trauma.

Objective To explore the effect of ginseng combined with transplantation of bone marrow mesenchymal stem cells(BMSCs)on functional recovery of rats with spinal cord injury(SCI). Methods Forty-eight female Wistar rats were randomly assigned to following four groups(n=12 per group):the sham operation group was treated by opening the vertebral lamina and exposing spinal cord without SCI;the SCI model group was reproduced by using improved Allen bump method and afterwards no treatment was given;methyl prednisolone(MP)group was treated by MP pulse treatment after SCI,including intravenous injection of MP 30 mg/kg immediately after SCI and 4 hours later the same injection was repeated,and then the same intravenous injection 2 times daily,3 days in total;The ginseng+BMSCs group was treated by orally taking ginseng ultra-microgranules 300 mg/kg after SCI,twice a day for 20 days and BMSCs 5μL(concentration 1×107 cell/μL)transplantation was carried out in SCI region on the 7th day after SCI. In the above 4 groups,the ethological observation(BBB scores)was done regularly and on the 30th day after operation,silver staining was applied to investigate the changes of spinal cord,and neuro-electrophysiological tests including somatosensory evoked potential(SEP)and motor evoked potential(MEP)were performed. Results In sham operation group,after surgery the movement of both hind limbs became temporarily sluggish and on the 7th day their functions recovered to approximately normal. In SCI model group,after injury paralysis of both hind limbs occurred,while in the MP group and ginseng+BMSCs group,different degrees of functional recovery of the injured limbs developed,and the recovery in ginseng + BMSCs group was more significant. Compared with sham operation group,after surgery the BBB score was reduced markedly at various time points in SCI model group;compared to the SCI model group,the BBB scores in MP and ginseng+BMSCs groups were increased significantly,especially more remarkable in ginseng+BMSCs group(all P<0.05),and beginning from the 12th day after operation,the difference became obvious (5.23±1.22 vs. 3.61±1.03, P<0.05). Histological detection showed that in sham operation group,the structure of spinal cord was complete,neurons distributed evenly in the gray matter and a large number of silver staining positive nerve fibers paralleled to each other and arranged regularly;in SCI model group,fragmented construction was present and the defects of gray and white matters were prominent. Compared with the SCI model group, the extents of tissue necrosis in MP and ginseng + BMSCs groups were ameliorated. The neuro-electrophysiological tests demonstrated that in SCI model group,the loss of normal wave form occurred. Compared with SCI model group,in MP and ginseng+BMSCs groups,after treatment latent periods(ms)were shortened prominently in different degrees of SEP and MEP,and their peak-to-peak values(mV)were increased obviously;the improvement in potential in ginseng+BMSCs group was greater than that in MP group〔SEP:latent period(ms):3.31±0.36 vs. 4.66±0.33, peak-to-peak value(mV):0.10±0.01 vs. 0.05±0.01,MEP:latent period(ms):3.40±0.13 vs. 4.24±0.31, peak-to-peak value(mV):41.12±0.56 vs. 16.46±2.83,all P<0.05〕. Conclusion A combined treatment of ginseng and BMSCs transplantation can effectively promote the recovery of neural function for rats with SCI.