Objective:To investigate the response of the astrocytes to sleep deprivation and sleep recovery at rat~(,)s SCN,as well as its relationship with neurons.Methods:12 Sprague-Damley rats were divided into four groups at random.Two groups were deprived of sleep by housing them on the small platforms over water for 24h and then one group recovered sleep for 3h.Controls were housed in the normal cage and on the large platforms over water.There were 3 rats in each group.The effects of sleep deprivation and sleep recovery on the expression of glial fibrillary acidic protein(GFAP) and Fos protein were investigated by immunohistochemistry.Results:The expressions of GFAP and Fos were increased obviously at SCN after sleep deprivation,where both of them were depressed after sleep recovery and the tendencies of these changes were almost at equal pace.Conclusion:It is possible that the astrocytes regulate sleep together with neurons.

Objective To study the levels of umbilical plasma ?-endorphin (?-EP) in normal and abnormal pregnancy and the influencing factors. Methods The umbilical plasma ?-EP concentrations of 95 cases were measured by radioimmunoassay. Linear regression was used to find out the influencing factors of ?-EP including: neonatal gestational age, gender, birth weight, mode of delivery, maternal hypertension, maternal diabetes, premature rupture of membranes(PROM) and fetal distress. The subjects were divided into two groups: healthy term newborns and preterm neonates. Results Gestational age, mode of delivery and fetal distress were important factors influencing umbilical blood ?-EP production (P

Objective To study the effect of the extract of total flavonoids of chrysanthemum indicum(TFC) on adjuvant arthritis synovial cells. Methods 0.1ml of the complete Freund's adjuvant was subcutaneously injected into the right hind feet pads of the SD rats.24 days after immunity synovial cells in knee joint were treated with TFC and inhibition of proliferation was measured with MTT assay.DNA fragmentations were analyzed with DNA gel electrophoresis.Fluorescence staining of Hoechst 33258 to observe apoptotic body.Results The IC_50 of TFC on synovial cells was 112mg/L.DNA gel electrophoresis showed ladder-like strap.Apoptotic bodies were observed by Hoechst 33258.Conclusion TFC can inhibit proliferation and induce apoptosis in synovial cells,and exerts therapeutical effect on rheumstoid arthritis.

Objective To study cancer metastasis in mesorectum and ischiorectal loss in cases of ultra-low rectal cancer and evaluate the rationale of Miles procedure. Methods Whole-mount slice and tissue mieroarray technique were used to study the dissected specimen from 23 cases of uhra-low rectal cancer for metastatic lymph nodes. Result 415 lymph nodes were harvested in 23 mesorectum specimen, 169 and 59 lymph nodes were metastasic and micrometastasie respectively. 12 eases were diagnosed with metastasis, 4 cases were found to have micrometastasis. Metastatic lymph nodes in the lateral and anterior mesorectum were 29.0% (49/169) and 17.2% (29/169) respectively. There were 2 patients with metastasis and 1 with micrometsstssis in ischiorectal fossa lymph nodes, accounting for 13% patients. Conclusion Regional metastasis exists in ultra-low rectal cancer and its incidence varies in different location of mesorectum and ischiorectal fessa. The value of Miles procedure as the standard therapy for ultra-low rectal cancer should undergo an evaluation.

Objective To explore the adiponectin expression in the chronic hepatitis B (CHB) patients and compare the level of edipanectin before and after antiviral therapy, and investigate the relationship between ediponectin and CHB. Methods Serum adiponectin was detected by enzyme linked immunosorbent assay (ELISA), and the expression of adipanectin in liver tissue was detected by palymerase chain reaction (PCR) and immunohistochemistry. The liver functions and HBV DNA were also tested. Liver biopsy tissue was assessed by fibrosis stage. Results Serum adipanectin in CHB liver cirrhosis [(20.65 ± 1.29) mg/L]was higher than that in other stage fibrosis, the values were (8.57 ± 0.28 ), (12.22 ± 0.64), (15.22 ± 0.77 ) mg/L (P< 0.01 ). Serum adiponectin was positively associated with fibrosis stage(r = 0.976,P< 0.01 ). There was no significant difference between HBV DNA and ALT (P> 0.05 ). Serum adipanectiu was independently associated with liver cirrhosis (r = 1.07, P = 0.02, 95% CI = 1.00-l.14).At the end of antiviral therapy,the expressions of adiponectin declined in patients with improved fibrosis and sustained viral response. Conclusion Serum adiponectin may play a role in CHB fibrosis, and reduced adipanectin level is associated with improved fibrosis after antivital therapy.

Objective To investigate the clinical manifesfations and diagnostic and therapeutic features of cholangiocarcinoma associated with hepatolithiasis.Methods The clinical data, the diagnotic and therapeutic featares of 54 cases of cholangiocacinoma associated with hepatolithiasis were retrospectively analyzed.Results The occurrence rate of hepatolithiasis concomitant with hepatocholangiocarcinoma was 11.8%.Due to a lack of specific clinical manifestations, the preoperative diagnosis of this condition was difficult. In this series, the (correct) diagnotic rate of hepatocholangiocarcinoma before operation was only 11.1%. The radical resection rate was 51.8%. Radical resection of the tumor had a better prognosis than that of non-resection of tumor.(Conclusions) Patients with long-term recurrent hepatolithiasis tended to have associated cholangiocarcinoma. Early diagnosis of the disease was difficult, and the treatment results and prognosis were poor. Therefore, (patients) with hepatolithiasis, espesially those with recurrent attacks, should undergo operation early. In cases diagnosed as hepatic cholangioearcinoma at operation, a radical resection should be performed, if possible, and a favorable outcome may be attained.

Aim To investigate the effect of total flavonoids of Chrysanthemum indicum on proliferation of synoviocytes and TRAIL/TNF-? expression of synovial tissue with adjuvant arthritis rats.Methods SD rats were divided randomly into six groups including normol,model,TFC(84,168,336 mg?kg-1)and control drug Tripterygium glycosides(30 mg?kg-1)groups.Adjuvant arthritis rat model was induced by a single intradermal injection of 0.1 ml of the complete Freund's adjuvant into the the right hind feet pads of the SD rats.The proliferation of synoviocyte was measured by MTT;The expression of TRAIL and TNF-? on synovial tissue were detected by means of immunofluorescence.Results TFC was shown to suppress the excessive synoviocyte proliferation;The expression of TRAIL was lower in model group than that of the normal group.TFC can increase the expression of TRAIL protein;The contrary to TNF-? protein.Conclusions TRAIL play a role in the development of AA.TFC can increase the lower expression of TRAIL protein,that maybe one of the mechanisms of TFC improvement AA.

Objective To investigate the effectiveness of electromyography-triggered stimulation on the hand function post stroke.Methods 40 stroke patients were divided into electromyography-triggered stimulation group and neuromuscular electric stimulation group.They were assessed with Fugl-Meyer Assessment (FMA), active range of motion of wrist extension (WE-AROM) and modified Barthel index (MBI) before and 6 weeks after treatment. Results The scores of all the assessments improved in both groups after treatment (P<0.001),and improved more in the electromyography-triggered stimulation group than in the neuromuscular electric stimulation group (P<0.05).Conclusion Compared with neuromuscular electrical stimulation, electromyography-triggered stimulation may further improve the hand function post stroke

AIM: To study the effect of berberine on the proliferation of human pulmonary carcinoma cells (PG cells). METHODS: The proliferation of PG cells was determined by using MTT assay. Cell cycle and apoptosis of PG cells were determined by using flow cytometry. Confocal scanning imaging system was used to assay the ROS-releasing level of PG cells. RESULTS: Berberine was shown to inhibit proliferation of PG cells directly and in a concentration-dependent manner (P

BACKGROUND:N-methyl-D-aspartate receptor is an ionic glutamate receptor which is closely related with the neural synaptic plasticity, and also can regulate neural synaptic plasticity. OBJECTIVE:To explore the mechanism by which N-methyl-D-aspartate receptor subunits NR2A and NR2B regulate neural synaptic plasticity after cerebral ischemia. METHODS: 60 Wister rats were randomly and evenly divided into a sham-operated group and a cerebral ischemia group. Rat models of chronic cerebral ischemia were established using the modified bilateral common carotid artery occlusion method in the cerebral ischemia group, while rats in the sham-operated group did not undergo occlusion of the common carotid artery and vagus nerve. RESULTS AND CONCLUSION:At 0-12 hours after chronic cerebral ischemia, NR2A expression in the rat hippocampus was gradualy decreased, while the expression of NR2B reached its peak level at 4 hours after cerebral ischemia. Under the circumstance of cerebral ischemia, neither low frequency nor high frequency induced long-term potentiation. These findings suggest that NR2B exhibit inhibitory effect, while NR2A exhibit promoting effect on long-term potentiation induced by stimulation.