Objective To probe into the serum blood platelet and turn into the plain(TPO) dependence that the blood platelet of level, liver cell function and periphery counts in purpose. Methods Among 106 cases of virus hepatitis patients in hsopital measuring, serum TPO level was carried on with ELISA. According to having blood platelet to reduce and divide into: A, B,C,D,E,F, G.H, group I. Results Between group A and group B,group C and group D,group E and group F,group G and group H,serum TPO level had significant differences(P

Objective To study the effect of PGE_1 injection on hepatorenal syndrome.Methods 64 patients with hepatorenal syndrome were divided into two groups at random,33 cases in treatment group and 31 cases in control group.On the basis of complex treatment of the contrast group were added PGE_1 of 200?g,dissolved at 10% glucose liquid 100ml,ivgtt,qd,the course of treatment is 2 weeks.Results The improvement which treated the liver function of the group was superior to the contrast group(P

Objective To investigate the relationship between serum HBV.M.alanine transaminase(ALT) and hepatic tissue pathology in patients with chronic hepatitis B.Methods The serum HBV.M.liver function in 133 patients with chronic hepatitis B were measured,and these patients underwent percutaneous liver biopsy by colour Echo.All these patients were divided into eight groups according to HBeAg and HBV DNA positive or negative,ALT normal or not.Hepatic necrosis inflammation grade and hepatic fibrosis stage in the groups were compared.Results Hepatic histology of all these patients showed inflammation and necrosis and different degree fibrosis.In serum ALT normal patients,liver biopsy still showed different degrees inflammation and hepatic fibrosis degrees partly,even showed hepatocirrhosis.In serum ALT abnormal and HBeAg negative patients with chronic hepatitis B patients,hepatic tissue inflammation and fibrosis degrees were more serious,hepatic tissue pathology was out of proportion to the degree of serum HBV reproduction.Conclusion Judgment of disease activity doesn't only depend on the serum transaminases and the degree of serum HBV DNA replication.When clinical choosing indication of antiviral therapy,value of liver biopsy should not be substituted.Liver biopsy in chronic hepatitis B should be regarded as main basis of judgment the hepatitis activity.It also should be regarded as main basis if antiviral therapy is conducted.

Objective To explore the significance of blood coagulation disorder in acute pancreatitis(AP) of the elderly and its treatment with prostaglandin E_1.Methods Prothrombin time(PT),partially activated thromboplastin time(APTT) and fibrinogen(FIB) in cases of AP with ages over 60 were checked and compared with those in groups of AP with ages under 60 and normal control subjects.10 cases of AP of the elderly with elevated FIB were treated with prostaglandin E_1.Results Compared with groups of AP with ages under 60 and the normal subjects,FIB was significantly higher in cases of AP of the elderly with the highest in patients of SAP.8 out of 10 aged AP patients with elevated FIB was successfully treated with prostaglandin E_1.Conclusion Patients of AP may present with blood coagulation disorders especially in aged patients.Aged patients with elevated fibrinogen may predispose to SAP.Prostaglandin E_1 may be effective in this occasion.

Objective:To investigate the effect of alendronate(ALN) solution on the healing of replanted dog teeth after extended dry time. Methods:The first, second incisor and first premolar in maxilla and the second, third incisor and first premolar in mandible in two mature mongrel dogs were used for the test. The right tested teeth were included in experimental group, and the left in control. Firstly, all tested teeth were endodontically treated. Seven days later, they were extracted, then naturally dried for 60 min. The teeth in experimental group were soaked for 5 min in a 1 mmol/L solution of ALN before replantation. The teeth in control group were not treated with any other methods before replatation. Bone masses including teeth were taken out 3 monthes after replantation. The samples were examined histologically.Results:The average percentage of cementum healing in experimental group was higher than that in control group(P

Objective To explore the clinical curative effect of the bipolar artificial femoral head replace-ment in the treatment of advanced aged patients with femoral neck fracture .Methods 32 advanced aged patients with femoral neck fracture were treated with the bipolar artificial femoral head replacement ,the effect was observed . Results 32 patients were stage Ⅰincision healing ,and after two weeks all could ambulate .Followed up for 6 to 36 months,two cases of dislocation ,two cases of postoperative pain ,3 cases of deep venous thrombosis ,one case of hip limited functionality.Harris score function assessment:excellent 24 cases(74%),good in 5 cases(16%),3 cases (10%).Conclusion Bipolar artificial femoral head replacement is the effective treatment of advanced aged patients with femoral neck fracture,with shorter operation time,small trauma,early and activities,and reduce the complications and reduce mortality rate etc .

0.05).The inflammatory resorption of root in experimental group was lower than that in the control(P

Objective To evaluate the auditory and verbal abilities of cochlear implantees using question_naires ,to explore basic rules of the development of auditory and verbal abilities ,and to analyze their relationships with some influencing factors .Methods A retrospective analysis of 107 cases of pre-lingually deaf children with cochlear implantation was conducted with Infant-Toddler Meaningful Auditory Integration Scale/Meaningful Audi_tory Integration Scale (IT -MAIS/MAIS) ,categories of auditory performance (CAP) and speech intelligibility rat_ing (SIR) for the evaluation of auditory and verbal abilities .An analysis was performed to assess influencing fac_tors ,such as postoperative time ,age at implantation ,physical age at follow -up ,time with hearing aids before im_plantation .SAS 9 .1 .3 was used in statistical analysis .ResuIts A total of 107 pre-lingually deaf children (48 males and 59 females) participated in this study .The postoperative time ranged from 0 to 49 months ,with an average of 9 .0 ± 10 .9 months .The results showed the postoperative time and age at implantation had significant influences on the scores of IT -MAIS/MAIS ,and postoperative time and physical age at follow -up had significant influences on the scores of CAP/SIR (P<0 .05) ,and hearing aids (HA) usage before implantation had no significant influences on these three questionnaires (P>0 .05) .ConcIusion The ages at implantation ,postoperative time and physical age had significant influences on the auditory and verbal abilities of pre-lingually deaf children with cochlear implanta_tion .Further studies are needed to explore their relationships with hearing aids usage before implantation .

Objective To obtain an easy and high efficient method for gene transfer to cochlear hair cells ,by comparing three mediating green fluorescent protein (GFP) methods (electroporation ,adenovector and lentivirus vector) .Methods Cochlear sensory epithelium was dissected from anaesthetized P2 mice .Sensory epithelia were transferred onto poly -L -lysine treated cover slides and cultured overnight .Gene transfer was performed by elec‐troporation in medium containing pGPHI/GFP/Neo plasmid or by incubation with diluted recombined adenovirus/lentivirus vector .After 48 hours ,green fluorescence was checked under fluorescence microscope .To confirm the ef‐ficiency of exogenous gene transfer ,real-time PCR was performed using specific primers .Results The transfec‐tion efficiencies of electroporation and lentivirus vector mediated gene transfer were very low .Both immunofluores‐cence and real - time PCR results showed that the transfection efficiency of adenovirus mediated GFP and Bmi1 transfer were relatively higher .The proportion of GFP positive cells in outer hair cells and inner hair cells of middle turn were 90 .0% ± 4 .1% and 5% ± 0 .4% ,respectively .Conclusion Adenovector is more efficient for exogenous gene transfer to cochlear hair cells ,thus adenovector is a good carrier for gene transfer to cochlear hair cells .

BACKGROUND: Recently, several scientists have found that differentiation of neural stem cells (NSCs) towards dopaminergic neurons may be increased in vitro by combination of some special cytokines. They have also found that dopaminergic neurons differentiated from NSCs can be used for the treatment of Parkinsn's disease. To improve the therapeutic effects of/n vitro transplantation, we should further study the biologic characteristics of NSCs at the induction and differentiation.OBJECTIVE: To explore the differentiation of NSCs which were incubated in differentiation solution for different time towards dopaminergic neurons in vitro.DESIGN: Single sample observation.SETTING: Department of Neurosurgery, First Affiliated Hospital of Sun Yat-sen University.MATERIALS: This study was performed at the Department of Ncurosurgery, First Affiliated Hospital of Sun Yat-sen University from May to October 2007. Six healthy Sprague Dawley (SD) rats, gestational age 14 days, of clean grade, weighing 350-400 g,were provided by the Laboratory Animal Center, Sun Yat-sen University[permission No. SCXK (yue)2007-0034]. The protocol was performed in accordance with ethical guidelines for the use and care of animals.METHODS: NSCs derived from rat embryonic mesencephalon were cultured in serum-free culture medium containing epidermal growth factors and basic fibroblast growth factors. After passage, the NSCs were induced to differentiate towards dopaminergic neurons in the differentiation medium supplemented with interleukin 1o, interleukinl 1, human leukaemia inhibitory factors, and glial cell line-derived neurotrophic factors. The percentage of tyrosine hydroxylase positive neurons in differentiated ceils was detected with flow cytometer when NSCs were cultured in differentiation solution for 2, 4, 6, 8 and 10 days, respectively.MAIN OUTCOME MEASURES: Cellular morphological alteration of rat NSCs after differentiation. The percentage of tyrosine hydroxylase positive neurons in differentiated cells derived from NSCs.RESULTS: In differentiation medium, NSC spheres attached the bottom of plates and began to collapse. Cells inside the spheres grew out gradually and became irregular in shape. Six days later, most of the cells had I or 2 long processes and a few short processes. The percentage of tyrosine hydroxylase positive neurons in differentiated cells was respectively (3.2_+_0.9)%, (6.8 +1.6)%, (16.7-+2.6)%, (14.8_+1.8)% and (12.2_+2.5)% after culture for 2, 4, 6, 8 and 10 days, with significant differences (F =26.449, P ＜ 0.05).CONCLUSION: Induction time influences the differentiation of NSCs towards dopaminergic neurons in vitro. The percentage of dopaminergic neurons is the highest in differentiated cells derived from NSCs which are cultured in differentiation solution for 6 days.