Objective To investigate the application of the Doppler echocardiography on the clinical value on the left ventricular myocardial remodel and dysfunction in neonates with hypoxia-induced pulmonary artery hypertension. Methods The Doppler echocardiography (ECHO) datas of 24 neonates of pulmonary diseases with secondary pulmonary artery hypertension were identified by color Doppler echocardiography,and compared with 14 neonates with pulmonary diseases without pulmonary artery hypertension. Results Pulmonary artery systolic pressrure (PASP) (38.23?3.26) mm Hg increased ,the diameter of right ventricular(11.92?2.18)mm vs (7.34?0.93) mm and pulmonary artery(10.20?1.21)mm vs (6.89?0.22) mm and diameter of left ventricular end-diastolic(19.74?0.71)mm vs (14.42?0.32) mm in PAH groups increased significantly ( P 0.05). There was positive correlation between the increased pulmonary artery pressure in pulmonary artery hypertension groups and the AV/EV of the mitral value orifice blood stream ( r=0.4126,P

Objective To investigate the effects of ubiquitin isopeptidase inhibitor Ⅰ on proliferation and apoptosis of human leukemic K562 cells.Methods Human leukemic K562 cells were treated with different concentration of ubiquitin isopeptidase inhibitor Ⅰ.Cell proliferation was monitored by MTT assay.Cell apoptosis was analyzed by flow cytometry after Annexin V/PI staining,and mRNA expression levels of bcl-2,bax and Caspase-3 were quantified by reverse transcription-polymerase chain reaction (RT-PCR).Results MTT assay showed that the proliferation of K562 cells was markedly inhibited by ubiquitin isopeptidase inhibitor Ⅰ in a time-and-dose dependent manner.The Annexin V positive rate of K562 cells after treatment with ubiquitin isopeptidase inhibitor Ⅰ was significantly increased by FCM analysis (P ＜ 0.05).The early apoptosis rate of K562 cells treated with 100 nmol/L ubiquitin isopeptidas inhibitor Ⅰ by 72 h,was obviously increased compared to control cells [(15.4±1.3) ％ vs (4.1±0.9) ％,P ＜ 0.01].The mRNA levels of Caspase-3 and bax were up-regulated and bcl-2 was down-regulated after treated with ubiquitin isopeptidase inhibitor Ⅰ,and the differences were statistically significant from control cells (P ＜ 0.05).Conclusion Ubiquitin isopeptidase inhibitor Ⅰ has inhibitory effect on proliferation and inductive effect on apoptosis of K562 leukemia cells,implying its possible application in treating leukemia.

Adolescent ; Adult ; Aged ; Aspartate Aminotransferases ; metabolism ; Case-Control Studies ; Electrocardiography ; Endosulfan ; poisoning ; Female ; Humans ; Lactate Dehydrogenases ; metabolism ; Male ; Middle Aged ; Young Adult

OBJECTIVE To study and improve the washing methods for the metal piping medical instruments. METHODS Some contaminated metal uteroventral scraping and drawing instruments were randomly divided into group A(by the ultrasonic vibration with proteinase washing method)and group B(by the traditional manual washing method). The effects of two washing methods were studied. RESULTS The qualified rate of experimental samples in the group A was higher than that in the group B(P

Accidents, Occupational ; mortality ; Humans ; Hydrogen Sulfide ; poisoning

Cysts ; complications ; Exophthalmos ; complications ; Frontal Sinus ; pathology ; Humans ; Male ; Middle Aged ; Paranasal Sinus Diseases ; complications

Objective To study the methods and outcome of 71 patients with Parkinson's disease treated with microelectrode-guided stereotactic pallidotomy and thalamotomy. Method Pallidal and thalamal target sites are chosen by supervision of microelectrode recording technique in 71 patients with Parkinson's disease. The UPDRS motor score was used to evaluate the outcomes 12 weeks before and after operation Result After 12 months follow-up, tremor disappeared completely or nearly completely in 12 patients who underwent unilateral and l bilateral ventrolateral thalamotomy. Dramatic improvement of tremor, rigidity, bradykinesia were observed in 57 patients underwent posteroventral pallidotomy,including 6 underwent bilateral posteroventral pallidotomy. Intracerebral hemorrhage was observed in l patient. Conclusion Microelectrode-guided stereotactic pallidotomy and thalamotomy are effective in treatmenting Parkinson's disease, but with serious complications

Objective To observe the effect of treatment of the diabetide foot with the fresh skin of the bufo bufo gargarizans cantor. Methods 42 diabetic foot patients were randomized into the control group and the treatment group with 21 patients in each. In the control group the patients were treated with disinfection routinely and dressing changing. In the treatment group the patients were treated with the fresh skin of the bufo bufo gargarizans cantor covering the infected feet after routine disinfection treatment. The treatment effect, the healing time and the length of antibiotics treatment course were compared between the two groups. Results The treatment effect of the treatment group was 100.00%, significantly higher than 80.95% of the control group. The healing time of the treatment group was (9.05 ±4.09) days, shorter than (17.41±4.20)days of the control group. The length of the antibiotics treatment course of the treatment group was(9.33±4.73)days, shorter than (17.10±4.83) days of the control group. Conclusions The fresh skin of the bufo bufo gargarizans cantor can improve the recovery rate, shorten the healing time and the length of the antibiotics treatment course by covering the infected feet.

The transcription factor of ethylene responsive factor binding protein (ERF) is belonged to AP2/ERF superfamily, which is known to be unique in plants. AP2/ERF proteins have important functions in the transcriptional regulation of a variety of biological processes related to growth and development, as well as various responses to environmental stimuli. An ERF gene from Salvia miltiorrhiza is cloned and divided into ERF gene family group VII of Arabidopsis and Rice. It contains a MCGGAI (I/L) motif referred to as CMVII-1 and a single intron in the 5'-flanking region of the AP2/ERF domain. Sequence analysis reveals that the region of second extron has abundant polymorphism sites. There are 21 single nucleotide polymorphism sites (SNPs) in the 264 bp region, among them, 14 SNPs are synonymous substitutions and 7 SNPs are non-synonymous substitutions. Though analysis of 181 samples from Shandong, Shaanxi and Sichuan Provinces, it reveals that each production area has its own special genotypes, 5 SNPs show significant difference. Cluster based on UPGMA method reveals that different populations from specific province have clustered together. It shows that SmERF gene will be a candidate molecular marker for the identification of Salvia miltiorrhiza from different areas.

Acetyl-CoA C-acetyltransferase (AACT) is the first enzyme in the terpene synthesis pathway, catalyzed two units of acetyl-CoA to acetoacetyl-CoA. In order to study the tanshinone biosynthesis in Salvia miltiorrhiza, a novel AACT gene, SmAACT, was cloned using cDNA microarray and RACE strategy. The full length cDNA of SmAACT is 1 623 bp (accession No. EF635969), which contained a 1 200 bp open reading frame (ORF) encoding a 399 amino acid protein. Nine introns were found in the genomic sequence. SmAACT was upregulated by YE and Ag+ elicitors both with cDNA microarray and quantitative RT-PCR analyses along with the accumulation of tanshinones. Sequence homology comparison and phylogenetic analysis all suggested that SmAACT belonged to the class of acetyl-CoA C-acetyltransferase. The transcription level of SmAACT was relatively higher in root than that in stem and leaf tissues. SNP analysis revealed that SmAACT was highly variable in the region of 6 to 9 introns with 33 SNPs in the 600 bp region, there are 5 SNPs in the cDNA region while they are all synonymous cSNPs. Some special genotypes were found in Salvia miltiorrhiza from different areas. SmAACT will be an useful gene for further analyze the mechanism of gene regulation among the tanshinones biosynthesis.