Angina Pectoris, Variant ; physiopathology ; Arrhythmias, Cardiac ; Electrocardiography ; Humans ; Male ; Middle Aged

Animals ; Heart Diseases ; surgery ; Stem Cell Transplantation ; methods ; Stem Cells ; cytology

Animals ; Embryonic Stem Cells ; transplantation ; Hematopoietic Stem Cell Mobilization ; Humans ; Myocardium ; cytology ; Stem Cell Transplantation

Objective:To investigate the door-to-balloon (D2B) time and its influencing factors for Percutaneous Coronary Intervention (PCI) in patients with acute ST-segment elevation myocardial infarction (STEMI).Methods:180 cases of patients with STEMI in our hospital from January 2014 to April 2016 were selected.PCI therapy were operated on all patients after their consent.The pre-hospital delay time and D2B time of the patients were recorded.The related information of the patients,including demographic data,clinical factors,background of the disease and psychological factors,were investigated by the questionnaire survey.The patients were divided into short D2B group (D2B time≤ 126 min,n=96) and long D2B group (D2B time＞126 min,n=84).Univariate and multivariate logistic regression methods were used to analyze the influencing factors of D2B time.Results:The median D2B time of all the patients was 126 min,and only 26.7％ of patients' D2B time controlled within 90 min.Univariate analysis showed that differences of sudden attack,pay attention to symptoms,someone was present when attack,symptoms progress was fast,in hospital during holiday,no symptom in CCU,outpatient treatment,transfered by emergency medical service system (EMSS),time in CCU (6 am-10 pm),angina before infarction and pre-hospital delay time between the two groups were statistically significant (P＜0.05).Multivariate logistic regression analysis showed that in hospital during holiday,outpatient service,no symptom in CCU,pay attention to symptoms,use of transfered by EMSS,time in CCU (6am-10pm) are the factors affecting the time of D2B (OR=2.62,2.04,1.59,0.52,0.28,0.61 P＜0.05).Conclusion:The D2B time of most patients with STEMI can not reach the guidelines.The factors of patients,doctors,accepting mechanism of hospital are all related with D2B time.

Objective To identify the hairless gene mutations in a family of atrichia with papular lesions. Methods Skin biopsies were taken from typical lesions for histopathological examination. Genomic DNA was extracted from blood samples of the family members. Complete encoding sequences of hairless gene Dwere detected by polymerase chain reaction (PCR) and DNA sequencing. Results Compound heterozygous mutations were identified in the patient: G337D in exon 3 and Q498X in exon 4. There was only one of the mutations in his parents and a younger brother. Conclusions G337D and Q498X mutations in hairless gene seem to be responsible for the phenotypes in the patient suffered from atrichia with papular lesions.

Objective:To compare the cardiovascular risk factors and the characteristics of coronary lesion between Chinese and Australian patients with myocardial infarction(MI). Methods:Five hundred and seventy-eight Chinese and 399 Australian MI patients received selective coronary angiography after hospitalization.The cardiovascular risk factors and coronary angiograms were compared and analyzed.Results:Five hundred and fifty Chinese cases(95.16%)and 376 Australian cases(94.24%)showed angiographically coronary stenosis.The comparing results of MI cases between Chinese and Australians were as follows:the percentage of patients below 40 years old,2.08% vs 6.02%(P0.05);the percentage of patients with three vessel disease and total occlusion,32.87% vs 24.31% and 45.50% vs 32.33%,respectively(P

Adult ; Coronary Angiography ; Drug-Eluting Stents ; adverse effects ; Humans ; Male ; Multidetector Computed Tomography ; Percutaneous Coronary Intervention ; adverse effects ; Sirolimus ; Thrombosis ; diagnosis ; etiology ; Ultrasonography, Interventional

OBJECTIVETo investigate the chemical constituents of dried whole plants of Artemisia annua.

METHODThe chemical constituents were isolated by repeated silica gel chromatography, medium pressure column chromatography, and semi-preparative HPLC, and their structures were elucidated by spectroscopic analyses and comparison of NMR data with those reported in literature.

RESULT15 compounds were isolated and identified to be 5-O-[(E)-Caffeoyl] quinic acid(l), 1,3-di-O-caffeoylquinic acid(2), 4 5-di-O-caffeoylquinic acid(3), 3, 5-di-O-caffeoylquinic acid (4), 3, 4-di-O-caffeoylquinic acid (5), methyl-3,4-di-O-caffeoylquinic acid(6), methyl-3,5-di-O-caffeoylquinic acid(7), 3,6'-O-diferuloylsucrose(8), 5'-β-D-glucopyranosyloxyjasmonic acid(9), Scopoletin(10), scoparone (11), 4-O-β-D-glucopyranosyl-2-hydroxyl-6-methoxyacetophenone (12), chrysosplenol D (13), casticin (14), chrysosplenetin(15).

CONCLUSIONCompounds 2, 6, 8 and 9 are obtained from the Artemisia genus for the first time. Compounds 7 and 15 are obtained from this plant for the first time.

Artemisia annua ; chemistry ; Chromatography, Gel ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Flavonoids ; chemistry ; isolation & purification ; Medicine, Chinese Traditional ; Plants, Medicinal ; Quinic Acid ; analogs & derivatives ; chemistry ; isolation & purification ; Silica Gel

Objective To detect the feasibility of magnetically labeled swine bone marrow mesenehymal stem cells(MSCs)with SHU 555A combined with poly-L-arginine(PLL),under MR imaging in vitro and in vivo.Methods Swine mesenehymal stem cells were isolated and culture-expanded 3 passages in vitro,then magnetically labeled by incubation with SHU 555A(25?g Fe/ml,Resovist,Schering)for 24 hours with 750 ng/mL poly-L-lysine(PLL;average MW_275 kDa)added 1 hour before incubation.Cellular iron incorporation and detention at 0 d,4 d,8 d,12 d,16 d,20 d after labeling was qualitatively assessed using Prussian blue and quantified at atomic absorption spectrometry.Cell viability was assessed by trypan-blue exclusion test.Cell suspensions underwent MR imaging with T_1-and T_2-weighted spin-echo and fast field-echo sequences on a clinical 1.5 T MR system.At last,1?10~6 SHU 555A labeled and unlabeled MSCs were transextracardially implanted into the infracted and normal myocardium approximately 2 week following the ligation of left anterior descending coronary artery in 1 swine respectively,and finally performed 1.5-T MRI within 1 week after infarction.Results①Intracytoplasmic particles stained with Prussian blue stain were detected for all cells with mean cellular iron content of(13.13?2.30)pg per cell.With division of stem cells, the stained particles decreased gradually with iron content(0.68?0.20)pg per cell.at 16 days after labeling, approximately to the prelabeled baseline values.(0.21?0.06)pg per cell(P＞0.05).The viability of the labeled cells at various time points were not significantly different with that of nonlabeled cells(P＞0.05).②MR images showed signal intensity changed most obviouly in T2*WI in vitro.The percentage change of signal intensity increased with increasing cell numbers,and decreased with the time.As few as 5?10~4-1?10~5 cells could be detected by using this approach.③Two injected sites containing MR-MSCs were detected in vivo,presentingas low signal intensity areas with the T_2*WI scanning sequence.Conclusion Swine bone marrow MSCs can be labeled with SHU555A-PLL and depicted with a standard 1.5-T MR imager in vitro and in vivo.(J lntervent Radiol,2007,16:115-121)

The changes of microRNA expression in rat hippocampus after traumatic brain injury (TBI) were explored. Adult SD rats received a single controlled cortical impact injury, and the ipsilateral hippocampus was harvested for the subsequent microarray assay at three time points after TBI: 1st day, 3rd day and 5th day, respectively. We characterized the microRNA expression profile in rat hippocampus using the microRNA microarray analysis, and further verified microarray results of miR-142-3p and miR-221 using quantitative real-time PCR. Totally 205 microRNAs were identified and up-/down-regulated more than 1.5 times. There were significant changes in 17 microRNAs at all three time points post-TBI. The quantitative real-time PCR results of miR-142-3p and miR-221 indicated good consistency with the results of the microarray method. MicroRNAs altered at different time points post-TBI. MiR-142-3p and miR-221 may be used as potentially biological markers for TBI assessment in forensic practice.