Adult ; Aged ; Cone-Beam Computed Tomography ; Dental Implantation, Endosseous ; methods ; Female ; Humans ; Hydrostatic Pressure ; Male ; Maxillary Sinus ; diagnostic imaging ; surgery ; Middle Aged ; Piezosurgery ; methods ; Sinus Floor Augmentation ; methods ; Tooth Loss ; surgery

The running cost of medical equipment embodies in every stage of the whole process of the equipment using. The control of the running cost in procurement phase is discussed in four aspects: chemical reagent, maintenance, training and quantity control, i.e. controlling the running cost in the beginning. This is a good method for controlling the running cost.

Objective To observe the serum estradiol level in newborns at different gestational age and the infants with retinopathy of prematurity (ROP), and explore the relationship between these changes and ROP. Methods A total of 178 newborns hospitalized in the Children's Hospital of Fudan University were enrolled in the study. They were divided into three groups based on the gestational age, ＜ 32 weeks group, 32-37 weeks group and term group. The three groups were further divided into non-oxygen and oxygen subgroups. Infants with birth weight less than 2000 g were evaluated for ROP and those diagnosed as ROP were under ROP group (n=6). Serum estradiol levels were measured every week from birth to discharge with radioimmunoassay. Results Serum estradiol levels of newborns quickly declined after birth. In the non-oxygen subgroups, serum estradiol levels in 32 ～ 37 weeks group were remarkably higher than those of term group in the first week [(3506±1376) pmol/L vs (1717±179) pmol/L,P＜0. 05] and the third week [(1431±92) pmol/L vs (996±102) pmol/L, P＜0. 05]; Serum estradiol levels in ＜32 weeks group was only remarkably higher than those of term group in the first week [(3173± 1369) pmol/L vs (1717± 179) pmol/L,P＜0. 05]; Serum estradiol level in the ＜32 week group was (560±355) pmol/L, lower than that in the 32-37 weeks group [( 1124 ± 128) pmol/L] (P＜0. 05). There was no difference of serum estradiol levels in the oxygen and non-oxygen subgroups of the same group. There was no significant difference of serum estradiol levels between the ROP group and ＜32 weeks group. Serum estradiol levels in ROP group was lower than that of premature group without ROP at 29 and 32-36 weeks of corrected gestational age, but no statistical difference was shown. Conclusions Very low serum estradiol level in premature infants may be related to the development of ROP, but further clinical studies are required.

To summarize the experience about the preoperative and postoperative nursing of 11 cases with neurogenic bladder treated by sacral neuromodulation. The main nursing interventions of this procedure involved accurate recording of voiding diaries and postvoid residual, effective psychological nursing and health education of related disease information, standard videourodynamic examination. 11 patients acquired more or less benefit after the screening test and were discharged successfully, among them 2 cases had the permanent implantation of the stimulation device.

Objective To compare the efficiencies of enteral nutrition with nasogastric tube with that of enteral nutrition with endoscopic gastrostomy tube in ICU long-term bedridden patients. Methods A total of 6 patients who were admitted in our ICU between January 2008 and September 2009 were enrolled in this study. The expected completion of daily calorie supply, completion of total volume of nutrient fluid feeding, nutrient fluid backstreaming condition, and incidence rate of tube obstruction were compared between those supported with nasogastric tube and endoscopic gastrostomy tube. Results The completion of daily calorie supply and completion of total volume of nutrient fluid feeding were significantly superior in patients who were supported with endoscopic gastrostomy tube than those with nasogastric tube (P = 0. 002 and P = 0. 008, respectively). In addition, nutrient fluid backstreaming condition and incidence rate of tube obstruction were significantly lower than with nasogastric tube (P= 0. 011 and P = 0. 021, respectively). Conclusion Enteral nutrition with endoscopic gastrostomy tube is more efficient in reaching the nutrition support target than with nasogastric tube.

Background Choroidal neovascularization (CNV) is a serious complication of many fundus diseases.A variety of factors are associated with CNV.Research showed that recombinant human endostatin ( rhendostatin ) can arrest the vascular endothelial growth factor (VEGF) pathway and inhibit the proliferation of endothelial cells and angiogenesis.Objective This study was to observe the inhibition of rh-endostatin on experimental CNV.Methods The CNV animal models were created by Argon laser with the wavelength 532 nm to irradiate the inferior retina away optical disc 1-2 DD for 25 spots in 32 eyes of 16 chinchilla rabbits.The laser parameters were as follows:power 800 mW,spot diameter 75 μm and time shutter 50 ms.The models were then divided into model control group and rh-endostatin group.Rh-endostatin was intravitreously injected via scleral incision in 16 eyes of 8 model rabbits at 1 week after photocoagulation.Fundus fluorescein angiography (FFA) and optical coherence topography(OCT) were performed at 1,2,4 weeks after photocoagulation respectively.The eyeballs were enucleated and the retinal sections were prepared for the histopathologieal examination,and the contents of VEGF and pigment epithelial derived factor(PEDF) in rabbit vitreous,and blood serum were detected by ELISA at 2,4 weeks after photocoagulation.Results Retinal edema and exudes were seen in 1 week and scarring in 4 weeks after photocoagulation.In rh-endostatin injection group,the hyperfluorescence masses were seen in the background phase and early arterial phase in 42％ (84/200) of spots in the first week.The fluorescence leakage was decreased in the rh-endostatin injection group compared with control group in the second week and ceased at the third week on the FFA after injection.Variety forms of hyperreflective zones were found below the retinal pigment epithelium on the seventh day after photocoagulation.But the partial vessel occlusion and fibroplasias were identified in the rh-endostatin injection group in the third week by the OCT.The histopathological examination showed that the morphological abnormality was mild in the rh-endostatin injection group in comparison with model group.The serum PEDF concentration was significantly elevated but the VEGF/PEDF values in vitreous and serum were declined in rhendostatin injection group compared with model group (P ＜ 0.0 1 ).Conclusions Argon laser photocoagulation could induce the experimental CNV in chinchilla rabbit.Intravitreous injection of rh-endostar can effectively inhibit laser-induced CNV in rabbit.

Objective To assess the value of serum N terminal pro-brain natriuretic peptide(NT-Pro-BNP) in the diagnosis of congestive heart failure(CHF) and evaluation of cardiac function in children with ventricular septal defect (VSD).Methods Fifty one children were enrolled from March 2004 to March 2005.NT-Pro-BNP was measured by enzyme immunoassay technique.At the same time,left ventricular ejection fraction(LVEF) and left ventricular shortening fraction(LVFS) were detected with echocardiography.Results The data of NT-Pro-BNP were showed but the logarithms of which were normal distribution.The values of NT-Pro-BNP were developed successively along with the severity of cardiac function.But there was no difference between the group of no heart failure and mild heart failure.But the values of LVEF and LVFS had no differences in the control,the mild and the moderate heart failure and the same time all of which beyond the standard of diagnosing heart failure.NT-Pro-BNP could reflect the degree of heart failure or cardiac function (r=0.826).But LVEF and LVFS can not reflect the degree of the cardiac function.Conclusions NT-Pro-BNP can reflect the degree of the cardiac function in VSD,and the degree of the heart failure can be classed by the levels of serum NT-Pro-BNP.But the value of LVEF and LVFS can not reflect the degree of the heart failure in the same disease.

This study was to investigate the chemical constituents from pseudobulbs of Pleione yunnanensis, one of the source of traditional Chinese medicine "Shancigu". The chemical constituents were isolated by various chromatography methods, including silica gel, ODS, Sephadex LH-20, and semi-preparative HPLC. Fourteen compounds were isolated and identified from the EtOAc fraction of 90% ethanol extract, including five dihydrophenanthrenes, four bibenzyls, two triterpenoids, and three phenylacrylic acids. Their structures were identified on the basis of the spectral data as 4, 7-dihydroxy-2-methoxy-9,10-dihydrophenanthrene (1), 4, 7-dihydroxy-1-(p-hydroxybenzyl)-2-methoxy-9,10-dihydrophenanthrene (2), (2,3-trans)-2-(4-hydroxy-3-methoxyphenyl) -3-hydroxymethyl-10-methoxy-2,3,4,5-tetrahydro-phenanthro[2,1-b]furan-7-ol (3), pleionesin B (4), blestriarene A (5), batatasin III (6), 3, 3'-dihydroxy-2-(p-hydroxybenzyl) -5-methoxybibenzyl (7), 3', 5-dihydroxy-2-(p-hydroxybenzyl) -3-methoxybibenzyl (8), 3,3'-dihydroxy-2,6-bis(4-hydroxybenzyl) -5-methoxybibenzyl (9), triphyllol (10), pholidotin (11), (E) -p-hydroxycinnamic acid (12), (E)-ferulic acid (13), and (E)-ferulic acid hexacosyl ester (14). Compounds 5,10-14 were separated from this plant for the first time.
Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Molecular Structure ; Orchidaceae ; chemistry ; Spectrometry, Mass, Electrospray Ionization

Objectives 99mTc-methoxyisobutylisonitrile (MIBI) SPECT imaging technology was used to observe the condition of tumor cell in-taking imaging agent in the C57BL/6J mice Lewis lung cancer model before and after using Ginsenoside Rg3 (short for Rg3).We aimd so as to discuss the feasibility of using this method to evaluate tumor multidrug resistance (MDR) status.Methods Mice Lewis lung cancer models were randomly divided into Rg3 group and the control group.After applying Rg3,semi-quantitative analysis was made on 99mTc-MIBI SPECT imaging and region of interest (ROI) to observe the multidrug resistance state of tumor and then the results were compared with the detection results of flow cytometry.Results The tumor intake ratio (T/N) difference between the control group and the Rg3 group in imaging,imaging before applying Rg3 and imaging after applying Rg3 were separately 15,60 and 120 min.The differences were statistical significant (P ＜ 0.01).The eliminate indexes (WR) of the control group and Rg3 group were positively related to P-gp protein expression positive cells detected by flow cytometry (P ＜ 0.05).Conclusions 99mTc-MIBI imaging is negatively related to P-glycoprotein (P-gp) expression in mice Lewis lung cancer cells,which can clearly show the multidrug resistance state of tumors and dynamically monitor the effect of Rg3 on multidrug resistance reversion of mice Lewis lung cancer.