Objective To observe the cytotoxicity of Ad-HO-1 and its capacity of mediating the expression of HO-1 in cultured HK-2 cells. Methods The HK-2 cells were infected by Ad-HO-1 with 100, 200 and 400 MOI for 3 h, followed by the green fluorescence observation 2 days later. The live cells ratio was detected 2 and 4 days later. The expression of HO-1 and GFP in HK-2 were detected under laser scan confocal microscope. The expression of HO-1 was detectee by Western blot analysis. 3H-TdR was used to assay the ability of HO-2 cells infected with Ad-HO-1 to inhibit the PBMC proliferation. Results Over 90% HK-2 cells expressed green fluorescence after infected by Ad-HO-1 (MOI 200) for 2 days. The live cell ratio at 2 and 4 days had not any difference from those of the control group. The expressions of HO-1 and GFP in the Ad-HO-1 transfected HK-2 cells were determined under laser scan confocal microscope. The locations of these two proteins were the same. HK-2 cells infected by Ad-HO-1 had protein immune blot strap combined with HO-1 antibody. When the MOI of Adv-HO-1 was 0.01, 0.1, 1 and 10, the proliferative capacity of PBMC was inhibited significantly. Conclusion The stable expression of HO-1 mediated by Ad-HO-1 in cultured tubular epithelial cells can inhibit the cell proliferation of PBMC.

Objective To study the relationship between IP 3 and detrusor cell contraction mediated by M 3R. Methods [3H]-IP contents of human cultured detrusor cells were detected after stimulated by carbachol,atropine,methoctramine and 4-DAMP respectively. Results [3H]-IP contents increased with carbachol concentration.On the different concentrations (10 -9、10 -8、10 -7、10 -6、10 -5、10 -4 mmol/L )of 4-DAMP,[3H]-IP contents were 3 926.57?273.29、2 780.52?211.09、2436.84?153.62、1 973.22?164.71、1 372.38?141.35 and 1 107.98?920.45 cpm respectively.On the some concertrations of Atropine,[3H]-IP contents were 3 602.69?280.17,2 891.31?207.45,1 983.97?145.74,1 269.57? 105.31,1 106.37?75.23,927.50?77.36/min,respectively.On the same concentrations of methoctramine, the [3H]-IP contents was 4 462.74?360.69、3 938.61?327.13、3 315.45?270.36、3 063.19? 246.79、2927.37?226.45 and 2 836.55?241.63 cpm.This donoted that 4-DAMP and atropine signficantly inhibited the effect of carbachol on PI decomposition(P0.05). Conclusions M 3R is much related to IP 3.

Objective To evaluate clinical significance of detrusor leak point pressure (DLPP) in the damage of the upper urinary tract secondary to neurogenic voiding dysfunction. Methods 38 cases of voiding dysfunction received the urodynamic test,especially detecting of detrusor leak point pressure. Results 38 cases were divided into 2 groups by DLPP of 4.0 kPa,26 in high DLPP group and 12 in low DLPP group.The bladder capacity of the high pressure group is (422.95?183.27)ml,significantly less than the low pressure group (464.83?106.43)ml,and its compliance is lower as well as with DSD.Clinical results of B ultrasound,IVU,BUN,Cr show that the high pressure group has more serious than that in the low pressure group. Conclusions DLPP is valuable in evaluating the damage of upper urinary tract secondary to neurogenic voiding dysfunction.

Objective To study the functional changes of gap junctional mediated intercellular communication in detrusor instability so as to demonstrate the feasibility of blocking excitatory communication as the target of therapy for DI. Methods The function of GJIC in the cultured bladder detrusor cells were detected by FRAP. Results At the fourth minutes after bleaching,the mean fluorescences recovery rates of the DI groups bladder detrusor cells was (35.791?0.836)%,the control groups (8.645?0.673)%.The mean fluorescences recovery rates of the DI groups were significant higher than those in control groups (P

Objective To investigate the effect of ? 3-adrenoceptors(? 3-AR) on rat detrusor instability(DI) secondary to bladder outflow obstruction(BOO). Methods Animal models of DI were made in 15 female Wister rats.The filling cystometry was conducted after 6 weeks,and the rats were divided into DI group and detrusor stabitily (DS) group based on the detrusor function. The effects of ? 3-AR agonist BRL37344A on the frequency of contraction and relaxation response to isolated detrusor were examined by means of the in vitro detrusor strip study.And the expression of ? 3-AR subtypes mRNA was investigated in rat detrusor muscle by RT-PCR. Results The occurrence rate of DI was 67%(10/15).BRL37344A could inhibit the contraction frequence and amplitude of the isolated detrusor which was concentration-dependent.The intensity did differ significantly between normal controls or DS group and DI group.The relative contents of ? 3-adrenoceptor mRNA in DI group,controls and DS group were 10.27?3.54,19.84?2.62 and 18.38?1.95.There was a significant decrease in the concentration of ? 3-adrenoceptors in DI group compared with controls and DS group( P

0.05).The AI of tumor cells was(9.7?0.9)% in mice treated with endostatin compared to that (1.9?0.4)% in the group of control ( P

Objective To investigate the effects of HO-1 on renal allografts after HO-1 gene transfection in rat chronic allograft nephropathy model. Methods Twenty F344 and twenty-six Lewis rats were included in this experiment. They were divided into 3 groups at random. Six Lewis rats were in pseudo-operation group, 10 Lewis were in empty carrier group (transfected with adenovirus) and 10 Lewis were in the gene transfection group (transfected with Ad-HO-1 adenovirus). The expression of HO-1 protein was detected by WB at the 1st ,2nd,3rd and 4th week. The content of creatinine in blood was assayed at the 4th,8th, 12th and the 16th week. The weight of rat, the value of patholiogical changes and the expression of ?-SMA,TGF-?1 and PDGF-B were analysized at the 16th week. Results The weight of rats in 3 groups had not any changes at 16th week. The content of creatinine in blood of gene transfection group were lower than those in the empty carrier group. The expression of HO-1 protein were very high in the 1st and 2nd week and decreased at 3rd and 4th week. The Banff value of kidney in the gene transfer group was better than that of the empty carrier group at the 16th week. The level of ?-SMA, TGF-?1 and PDGF-B in the gene transfection group were significantly lower than those in the empty carrier group. Conclusions Ad-HO-1 could efficiently transfer HO-1 gene into rat donor kidney. The prevention of chronic allograft nephropathy may have relationship with the decreasing expression of ?-SMA, TGF-?and PDGF-B.

The effects of autonomic drugs on the activities of the upper urinary tract were studies with the ureteral perfusion pressure method.It was found that a-adrenergic and M-cholinergic receptors possess excitatory effect on the upper urinary tract while ?-adrenergic receptor possess inhibitory effect.It is likely that a-adrenergic receptor plays a certaion role in the maintenance of the normal activity of the upper urinary tract but both the M-and ?-receptors have a little effects.The effects of the autonomic nervous system and its receptors on the activities of the upper urinary tract were discussed.

The effects of noradrenaline,isoptin.prostaglandin E and indomethacin on the dynamics and the muscloelectrical activities of the ureter were sutdied in dogs.It was found that no-radrenaline exerted excitation on the smooth muscle of the upper ureter,isoptin could remarkably reduce both the electrical and contractile activities of the ureter,prostaglandin E could intensify the activeites of the ureter,and indomethacin could the inhibit the synthesis of intrinsic prostaglandins and in turn relax the smooth muscle of the ureter.

Objective To observe the goats' urethral urodynamic and biochemical changes after electrical pelvic floor stimulated. Methods 18 goats were randomized into the stimulating group with pelvic floor stimulation and the control group. Results After being stimulated,the urethral continence length significantly increased by 7.8%( P