Heart Septal Defects, Atrial ; complications ; Humans ; Infant, Newborn ; Male ; Nasal Polyps ; complications ; congenital ; Nasopharyngeal Diseases ; complications ; congenital

ObjectiveTo investigate the relationship between the oxidative injury induced by low glucose and mitochondrial membrane potential in HUVEC-12 cells. Methods Human umbilicalvein endothelial cells HUVEC-12 were cultured in low concentration glucose for 4 h.Cell viability of HUVEC-12 cell was assessed with MTT assay.Dihydroethidium (DHE) was used as a reactive oxygen species (ROS)capture, which was detected the mean fluorescence intensity of samples and Rhodamine 123 as a fluorescence detector was to measure the level of mitochondrial membrane potential (MMP) in cells.Results Comparing to HUVEC-12 cells viability in 5.5 mmol/L glucose group (96.80 ±3.20)％, cells exposed to 2.8 mmol/L glucose group (66.40 ± 1.60) ％ and 0 mmol/L glucose group (58.93 ± 1.67) ％ were decreased by 32％ and 40％ respectively (P ＜ 0.01).ROS level of 5.5 mmoL/L glucose group, 2.8 mmol/L glucose group and 0 mmol/L glucose group were 0.59 ± 0.02, 0.74 ± 0.04 and 0.88 ± 0.05,respectivdy, increased by 25％ in cells exposed to 2.8 mmol/L glucose and by 48％ in cells without glucose exposure comparing to 5.5 mmol/L glucose group (P ＜0.01) ; MMP levels of 5.5 mmol/L glucose group,2.8 mmoL/L glucose group and 0 mmoL/L glucose group were 148.83 ± 3.51, 271.07 ± 19.54 and357.74 ±51.32 respectively, increased to 1.8 times in cells exposed to 2.8 mmol/L glucose and to 2.4times in cells without glucose exposure comparing to 5.5 mmoL/L glucose group (P ＜ 0.01).Conclusion Low glucose leads to injury in HUVEC-12 cells, which is probably induced by the oxidative stress via the increasing MMP.

Vascular perfusion distribution in fibroids contrast-enhanced ultrasound images provides useful pathological and physiological information, because the extraction of the vascular perfusion area can be helpful to quantitative evaluation of uterine fibroids blood supply. The pixel gray scale in vascular perfusion area of fibroids contrast-enhanced ultrasound image sequences is different from that in other regions, and, based on this, we proposed a method of extracting vascular perfusion area of fibroids. Firstly, we denoised the image sequence, and then we used Brox optical flow method to estimate motion of two adjacent frames, based on the results of the displacement field for motion correction. Finally, we extracted vascular perfusion region from the surrounding background based on the differences in gray scale for the magnitude of the rich blood supply area and lack of blood supply area in ultrasound images sequence. The experimental results showed that the algorithm could accurately extract the vascular perfusion area, reach the precision of identification of clinical perfusion area, and only small amount of calculation was needed and the process was fairly simple.
Algorithms ; Contrast Media ; Female ; Humans ; Leiomyoma ; blood supply ; diagnostic imaging ; Motion ; Perfusion ; Ultrasonography

To enhance the capacity for extending and applying appropriate health technologies in rural areas in China,this paper proposes a supportive policy system that incoperates macro,average and microlevels. Thepolicysystemfocusesonorientation, incentives, regulationsand standardization,and its objectives and measures of each level are described.The policy system will contribute to the sustainable development rural health work.

Objective To investigate the effect of indomethacin on prevention of heterotopic ossification (HO)after operative treatment of acetabular fractures.Methods Fifty patients with acetabular fractures received in our department operative treatment through Kocher-langenbeck(K-L)approach and oral administration of in- domethacin afer operation from February 2001 to August 2003.Forty-eight of them were successfully followed up for incidence of HO and their clinical functions were assessed.The results were compared with those of 40 patients who had been treated with the same operative procedures but without oral administration of indomethacin in our depart- ment from March 1993 to May 1998.The patients who could not tolerate the drug were not included.Results The follow-ups averaged 22.8 months(range,6 to 39 months).HO occurred in eight cases.The incidence of HO was 16.7%(8/48).According to Brooker evaluation of HO,five cases were rated as degreeⅠ,three as degreeⅡ, and none as degreeⅢorⅣ.The incidence of severe HO was 0.In the control group,the incidence of HO was 35.0%(14/40)and the incidence of severe HO was 10.0%(4/40).The differences were statistically significant (P＜0.05).Conclusion Oral administration of indomethacin after operative treatment of acetabular fractures can inhibit HO.

Objective To investigate if the 23 strains of highly-resistant P.aeruginosa isolated from different patients in the in- tensive care unit (ICU) have the same origin;and explore the related mechanisms of carbapenem resistance in these multidrug- resistant P.aeruginosa.MethOds Antimicrobial susceptibility testing was performed using disk-diffusion technique.The strains were genotyped by rep-PCR with the primer ERIC2 followed by electrophoresis in agarose gel.We used a previously described imipenem-EDTA double-disk test for screening MBL-producing P.aeruginosa.Polymerase chain reaction for amplification of blaOprD, blaIMP, and bla VIM were performed to detect corresponding mutants.Results The result of antimicrobial suscepti- bility testing showed that 20 of the 23 P.aeruginosa isolates were muhidrug-resistant and highly resistant to imipenem and meropenem, and at least 5 antimicrobial agents tested in this study.The analysis of the rep-PCR products indicated that all the 19 carbapenem-resistant strains had an identical band pattern, which was different from that seen in the sensitive strains.Al- though imipenem-EDTA double-disk test identified 5 MBL-producing strains, PCR found that all the 23 strains were negative for bla VIM and blaIMP.Only one OprD-deficient mutant was identified.Conclusions The 19 highly-resistant strains of P. aeruginosa derive from a common origin.More researches are needed to clarify their mechanism of carbapenem resistance.

This paper reviews the development of appropriate health technology policy from 1992 to 2012 in Zhejiang province.The evolvement of recent twenty years is classified into several stages and each is analysed and evaluated.This study provides reference for the establishment of appropriate health technology policy and the transformation of science and technology policy across the country.

2cm~2.Conclusions The auto-cranial pedicle flap via endonasal repairing blow-out fractures of or- bital inferior wails is an effective technique.The results are good for improving eye movement especially for fracture ranged≤2cm~2. (Ophthalmol CHN,2007,16:388-390)

Objective This study aimed to explore the epidemiological characteristics and related factors of overweight and obesity in Tianjin adults. Methods With multi-stage randomized cluster sampling, 19 271 people aged 18 years and over were selected from both urban and rural areas of six geographical regions of Tianjin in 2006, using a cross-sectional methodology. Data from these residents was collected, using a questionnaire by face-to-face interview conducted by trained interviewers. Demographic, anthropometric data were collected in all participants. Data was analyzed with SPSS 13.0 software. For diagnosis of overweight and obesity, we adopted the standard of overweight and obesity recommended for Chinese adults. Age, gender and area distribution of overweight and obesity in the population of Tianjin were described, and the related factors were analyzed. Results Prevalence of overweight and obesity in adults from Tianjin were 32.8%(95%CI: 32.1%-33.5%) and 11.7% (95% CI: 11.2%-12.2%), with the standardized rates as 33.1% and 12.2%, respectively. Those figures were higher than the national average levels. The prevalence rates of overweight and obesity were increasing with age. The overweight rate in 50-59 year olds and the obesity rate in 60-69 year olds reached their peak values. The prevalence rate of obesity was higher in rural (13.5%,with 95%CI: 12.8%-14.2%) than in the urban areas (11.1%,with 95%CI: 10.4%-11.7%) and in females (12.6%,95%CI: 11.9%-13.2%) than in males (10.9%,95%CI: 10.3%-11.5%). Results from logistic regression model analyses indicated that the prevalence of overweight and obesity in Tianjin were statistically associated with age, gender, educational level, smoking, alcohol consumption and exercises. Conclusion As the urbanization progressing, the prevalence of overweight and obesity was much higher in the population of Tianjin city. Many factors were related to adults overweight and obesity. An active community-based public health intervention should be taken.

This study aimed to explore the impact of depression caused by chronic unpredictable mild stress (CUMS) on in vivo activity of six kinds of CYP450 isoforms in rats. According to 'Katz' method, the model of CUMS was established. Tolbutamide, chlorzoxazone, theophylline, midazolam, omeprazole and dextromethorphan were chosen as probe substrates of CYP2C6, CYP2E1, CYP1A2, CYP3A2, CYP2D1 and CYP2D2 of rats. Plasma concentration of six kinds of CYP450 in control group and model group were determined by LC-MS/MS and computed pharmacokinetic parameters. Consequently, metabolism of theophylline and chlorzoxazone accelerated significantly (P < 0.01), but tolbutamide, dextromethorphan, omeprazole and midazolam had no significant difference. The present study proved that depression caused by CUMS had strong induction to CYP1A2 and medium induction to CYP2E1.
Animals ; Chlorzoxazone ; metabolism ; Chromatography, Liquid ; Cytochrome P-450 Enzyme System ; metabolism ; Depression ; Dextromethorphan ; metabolism ; Liver ; enzymology ; Midazolam ; metabolism ; Omeprazole ; metabolism ; Rats ; Stress, Physiological ; Tandem Mass Spectrometry ; Theophylline ; metabolism ; Tolbutamide ; metabolism