Objective To compared the electrophysiological features in peripheral vertigo and central vertigo. Methods The electronystagmograph ( ENG ) and brainstem auditory evoked potentials ( BAEP ) were applied in peripheral vertigo group(85 cases) and central vertigo group(61 cases).Result ENG abnomal was in 67 cases (78.8%) in peripheral vertigo group.Overshoot or undershoot of dysmetria test was in 6 cases ( 7.1%);spontaneous nystagmus was in 5 cases(5.9%);abnormal of gaze test was in 16 cases(18.8%); eye tracking test typeⅠwas in 42 case(49.4%), typeⅡwas in 17 cases(20.0%), and typeⅢwas in 8 cases(9.4%); bilateral asymmetry of optokinetic nystagmus test was in 19 cases(22.4%);positioning nystagmus was in 51 cases(60.0%);abnormal of cold and hot test was in 31 cases(36.5%).ENG abnomal was 42 cases(49.4%) in central vertigo group.Overshoot or undershoot of dysmetria test was in 19 case(31.1%);spontaneous nystagmus was in 13 cases (21.3%);abnormal of gaze test was in 23 cases(37.7%);eye tracking test typeⅠwas in 35 cases(57.4%), typeⅡwas in 13 cases(21.3%), and typeⅢwas in 8 cases(13.1%);bilateral asymmetry of optokinetic nystagmus test was in 33 cases(54.1%); positioning nystagmus was in 2 cases(3.3%); abnormal of cold and hot test was in 6 cases(9.8%).Compared with peripheral vertigo group, the abnormal rates of optokinetic nystagmus test, gaze test, eye tracking test, optokinetic nystagmus test in central vertigo group were significantly increased, and the abnormal rates of positioning nystagmus, cold and hot test in central vertigo group were significantly decreased (all P<0.05). There were 32 cases(37.6%) in peripheral vertigo group with BAEP abnormal, and 31 cases(50.8%) were in central vertigo group with BAED abnormal.Compared with central vertigo group, the latency ofⅠwave andⅠ-Ⅲwave latency delayed in peripheral vertigo group were significantly increased, the latency ofⅤwave andⅠ-Ⅴwave latency delayed were significantly decreased ( all P<0.05 ) .Conclusions There are high sensitivity of optokinetic nystagmus test, gaze test, eye tracking test, optokinetic nystagmus test of ENG to the diagnosis of central vertigo. There are high sensitivity of positioning nystagmus, cold and hot test to the diagnosis of peripheral vertigo.The positive rate of BAEP is relatively lower, but it can provide objective foundation for location of vertigo patients.

Objective: To explore the inhibitory effect of N4-hydroxyphenyl retinode (4-HPR) used alone or in combination with DDP on xenografted human ovarian carcinoma in nude mice and its relationship with the expression of vascular endothelial growth factor (VEGF) and urokinase type plasminogen activator (u-PA). Methods: Human SKOV3 ovarian carcinoma cells were inoculated into BALB/c nude mice. The tumor-bearing nude mice were randomly divided into four groups: control group, DDP group, 4-HPR group, and 4-HPR plus DDP group. The growth of xenografted tumors was observed every 3 days. The VEGF expression in xenograft tumors was analyzed by immunohistochemical staining. The mRNA and protein expressions of VEGF and u-PA were analyzed by RT-PCR and Western blotting, respectively. Results: 4-HPR combined with DDP significantly inhibited the growth of xenografted ovarian carcinoma and down-regulated the mRNA and protein expressions of VEGF and u-PA. The inhibitory effect of combination therapy was superior to those treated with 4-HPR and DDP alone. Conclusion: 4-HPR plus DDP significantly inhibited the proliferation of xenografted ovarian carcinoma in nude mice. The effect was associated with the expressions of VEGF and u-PA.

Cervical Ripening ; Female ; Humans ; Integrative Medicine ; Pregnancy

Objective To study the feasibility and effect of implantation of the biliary stent for treatment of biliary obstruction.Methods A retrospective analysis of the diagnostic and therapeutic procedure was done in 131 cases of the inpatients from Apr.2006 to Feb.2007.The 131 patients with biliary obstruction underwent successfully 138 cases/times implantation of biliary stent.The results of recession of jaudince and the rate of complication were evaluated.Results All patients were implanted biliary stent successfully.The serum total bilirubin,direct bilirubin,alkaline phosphatase,?-glutamyl transpeptidase decreased obviously in three days,and the difference was remarkable.The main complication was infection of biliary tract and pancreatitis.Conclusion Implantation of biliary stent is an effective management for biliary obstruction,especially for patients who have lost the chance of operation.

0.05). Conclusion IL-1? has a higher value than cagA gene in predicting the prognosis of chronic gastritis.

Objective:To observe the specific cellular immune response and the protection against P815 mastovytoma cells(H 2 d) stable expressing HBV surface antigen and HCV core antigen after the immunized mice(H 2 d) with plasmids SpcDNA3.1,CpcDNA3.1 and chimeric plasmid CSpcDNA3.1.Methods:After subcutaneous immunization with the three plasmids SpcDNA3.1,CpcDNA3.1 and CSpcDNA3.1 respecitively 3 w,the mice were inoculated with the transfected P815 tumor cells.The tumors size and the survival rate were measured.CTL assay was detected with LDH methods.Results:The chimeric plasmid CSpcDNA3.1 could inhibit the tumor growth,prolong the survival period and improve the survivial rate evidently.The splencytes from immunized mice showed strong CTL activity to CSpcDNA3.1 transfected P815 tumor cells.Conclusion:It was suggestd that specific antitumor cellular immunity could be induced by immunization with the chimeric plasmid CSpcDNA3.1 that contain chimeric HBV and HCV gene.

Objective To observe the alteration of bone metabolism and to study the pathogenesis of osteoporosis and factors in elderly patients with chronic obstructive pulmonary diseases (COPD). Methods The biochemical markers of bone metabolism, bone mineral density (BMD) of the lumbar spine and the right femur, parameters of calcaneal quantitative ultrasound(QUS), blood partial pressure and pulmonary functions in 39 male patients with COPD and 30 controls were measured. Results The broadband ultrasonic attenuation (BUA) and the speed of sound (SOS), BMD of the lumbar spines and the femur were significantly lower than that in control group. The biochemical markers of bone metabolism such as HOP/Cr, Ca/Cr, and PTH in the COPD group was significantly raised than that in control group〔(60 2?7 0)dB/MHz vs (66 5?4 9)dB/Mhz,(1 328 4?41 5)m/s vs (1 505 8?26 9)m/s,23% vs 34%,21% vs25%〕. The serum levels of Testosterone(T) reduced significantly ( P

To explore the anti-atherosclerotic mechanism of estrogen and especially observe the effect of estradiol on the content of cholesterol in J774a.1 mouse mononuclear/macrophage-derived foam cells which were incubated with oxidized low-density lipoproteins (ox-LDL). J774a.1 mouse mononuclear/macrophages were incubated with ox-LDL or with both ox-LDL and estradiol (1, 0.1 or 0.01 micromol x L(-1)). Oil red O staining was used to observe the formation of foam cells, and cholesterol oxidase fluorometric was used to determine the content of cellular cholesterol content. Western blotting and RTFQ-PCR were used to observe the expressions of scavenger receptor class B type I (SR-B I ) in J774a.1 foam cells. Compared with the control cells, J774a.1 mouse mononuclear/macrophage-derived foam cells showed significantly increased contents of total cholesterol and cholesterol ester (P < 0.001) and decreased SR-B I mRNA expression (P < 0.01). Estradiol treatment significantly lowered the contents of total cholesterol and cholesterol ester (P < 0.05), and increased SR-B I protein and mRNA expression (P < 0.01) in the foam cells in a dose-dependent manner. Estradiol can inhibit the formation of mononuclear/macrophage-derived foam cells by decreasing the contents of total cholesterol and cholesterol ester and up-regulating the expression of SR-B I in the foam cells.
Animals ; Cell Line ; Cholesterol ; metabolism ; Cholesterol Esters ; metabolism ; Estradiol ; pharmacology ; Foam Cells ; cytology ; metabolism ; Lipoproteins, LDL ; metabolism ; Macrophages ; drug effects ; metabolism ; Mice ; Scavenger Receptors, Class B ; metabolism

Adult ; Aged ; Bone Neoplasms ; diagnosis ; secondary ; Diffusion Magnetic Resonance Imaging ; methods ; Female ; Follow-Up Studies ; Humans ; Liver Neoplasms ; diagnosis ; secondary ; Male ; Middle Aged ; Multimodal Imaging ; methods ; Nasopharyngeal Neoplasms ; diagnosis ; Positron-Emission Tomography ; Tomography, X-Ray Computed ; Whole Body Imaging ; methods

Objective To explore the inhibiting effects of arsenic trioxide and cisplatin on MG-63 cells. Methods Using MTT assay,flowcytometry,phase contrast microscopy and electron microscopy methods,the therapeutic effect of arsenic trioxide was studied for the osteosarcoma in the cultured MG-63 cells in vitro,and compared these effects with cisplatin. The inhibitory rotes of cell growth and the effect of apoptosis and cell cycle were compared between arsenic trioxide and cisplatin on MG-63 cells. Results The contrast phase microscope revealed the adhesion ability of normal groups was good and cellular morphology showed epithelium cells. But the celhdar morphology showed irregular arrangement in arsenic trioxide groups and cytoplasmic vacuoles in cisplatin group. Electron microscope revealed the globular plasmalemma ecphymas in cell surface of control groups,the enlarged crista mitochondriales and the double-deck membrane structure appeared clearly. But electron microscope revealed globular plasmalemma processes in cell surface of arsenic trioxide groups,thinned crista mitochondriales and clearly seen karyopycnosis and nuclear membrane of apoptotic cells. The globular plasmalemma processes in cell surface of cisplatin groups were separated,nuclear membrane thickened and chromatin were in sandy shape. Both arsenic trioxide and cisplatin inhibited effectively MG-63 cells growth. There was a significant difference in different groups of inhibition ratios to the growth of cells(all P < 0.05). In 2,4,8,16,32,64,128 hours,the inhibition ratios(%) of arsenic trioxide(56.31±0.03,70.00±0.06,79.84±0.03,87.31±0.13,84.70±0.09,90.68±0.06,91.18±0.05) and cisplatin groups(7.55±0.15,15.70±0.17,30.72±0.07,49.80±0.05,45.11± 0.13,61.62±0.08,93.80±0.12) were obviously increased as compared with those in the control group(2.03± 0.07,2.78±0.08,3.11±0.01,5.67±0.04,12.23±0.04,18.65±0.04,24.45±0.04,all P < 0.05). Moreover the inhibition ratio of arsenic trioxide group in 2 to 32 hour was significantly higher than that of cisplatin group and the effect was more faster(all P < 0.05). Both arsenic trioxide and cisplatin could induce apoptosis MG-63 cells. There was a significant difference in different groups of the inhibition ratio to the growth of cells(F = 13.317,P < 0.05). The inhibition ratios(%) of arsenic trioxide on 24,36,48 hour(20.50±3.78,45.76±9.90,25.16±15.41),and cisplatin groups on 24,36,48 hour(12.55±1.51,18.85±3.40,12.37±5.43),were obviously increased as compared with those in the control group at the same time(6.57±1.48,8.03±2.08,6.54±1.30,P< 0.05 or<0.01). Both arsenic trioxide and cisplatin inhibited MG-63 cells cycle. There was a significant difference in different groups of the inhibition ratio to the growth of cells(F = 54.579,43.429,21.795,P < 0.05 or < 0.01). And the total inhibition ratios(%) in G1 cycle of arsenic trioxide(78.26±5.24) and cisplatin groups(80.48±2.81) were obviously increased as compared with those in the control group(57.49±6.65,all P < 0.05 or < 0.01). Conclusions Arsenic trioxide and cisplatin can effectively inhibit the proliferation of MG-63 cell line and induce the apoptosis of MG-63 cell line. And the effects induced by arsenic trioxide group were faster than that of cisplatin groups. Moreover arsenic trioxide can arrest the cell cycle of MG-63 cell line at G1 phase.