1.Primary evaluation of collateral flow of anterior circulation cerebralvascular atherosclerosis under neurovascular ultrasound examination
Chinese Journal of Neurology 2000;0(05):-
1.2 had no significant difference between the unilateral MCA-M1 stenosis group and the control group.Conclusion Transcranial Doppler can help us to analyze collateral flow on the foundation of NVUE,and can also determine the qualitative and the semi-quantitative information of collateral flow.
5.Salvia miltiorrhiza ligustrazine prevention in elderly hip treatment in perioperative period of patients with cardio cerebral apoplexy fracture
Guobiao PAN ; Wei WANG ; Min WANG
Chinese Journal of Biochemical Pharmaceutics 2017;37(2):320-322
With the accelerating process of aging society, people's life style is changing accordingly, elderly patients due to physical decline in daily activities, often prone to hip fracture, its basic reason is osteoporosis, which belongs to brittle fracture, evaluation of preoperative examination and the systemic function is very important.Perioperative treatment is the key to the success of surgery treatment , a considerable part of the success of surgery depends on the factors of internal diseases.The incidence of cardio cerebral stroke in hip fracture surgery is also increasing , especially in elderly patients, often and there are a variety of medical diseases, the majority of organ function reserve is low, tolerance to anesthesia, surgery and other stress ability is poor, Patients in the perioperative period of traumatic stress, easily lead to stroke secondary cardiovascular disease, in clinical treatment, we should strengthen the prevention measures of perioperative stroke in elderly patients with hip fracture , Salvia miltiorrhiza ligustrazine injection can effectively prevent the occurrence of myocardial ischemia, myocardial infarction, or cerebral infarction by reducing platelet aggregation function and blood viscous degree, expanding coronary artery, cerebrovascular, improving the flow rate of red blood cells and microcirculation.In this paper mainly for Salvia miltiorrhiza ligustrazine in recent years in elderly hip fracture patients perioperative cardio cerebral apoplexy therapy application review to provide some reference value for clinical research .
6.Antinociceptive effect of glucosides of Chaenomeles speciosa
Niping WANG ; Min DAI ; Hua WANG ; Lingling ZHANG ; Wei WEI
Chinese Journal of Pharmacology and Toxicology 2005;19(3):169-174
AIM To observe the antinociceptive effects of glucosides of Chaenomeles speciosa(GCS) and to study their relative mechanism. METHODS The effects of GCS on normal and inflammatory animals were observed in mouse acetic acid writhing test, mouse formalin test and arthritic flexion test of adjuvant arthritis(AA) rats; the concentration of prostaglandin E2 (PGE2) and tumor necrosis factor-α(TNF-α) secreted by the synovial cells of AA rats were measured by radioimmunoassay. RESULTSDifferent doses of GCS (60, 120, 240 mg·kg-1 for mice and 30, 60, 120 mg·kg-1 for rats, ig) inhibited mice′s writhing response and second phase of formalin response. It also suppressed the increased arthritic flexion scores in AA rats. On 28 d after inflammation induction, GCS (60, 120 mg·kg-1) decreased the concentration of PGE2 and TNF-α of synovial cells in the AA rats. CONCLUSIONGCS have antinociceptive effects, which related to its inhibitory effects on peripheral inflammatory mediators.
7.Molecular epidemiology profile of methicillin-resistant Staphylococcus aureus in ICU ward.
Wei XIONG ; Hongbo WANG ; Min TU
Chinese Journal of Practical Internal Medicine 2001;0(05):-
Objective To investigate molecular epidemiology profile of methicillin-resistant Staphylococcus aureus (MRSA) in ICU ward.Methods Twenty-five MRSA strains were typed by arbitrarily primed PCR (AP-PCR).Results Ten different AP-PCR patterns (A-G) were found among 25 MRSA strains.Most of MRSA in ICU ward were A and B pulsotype.Conclusion Hospital acquired MRSA is multi-resistant to antibiotics.A and B pulsotype MRSA outbreak occures in ICU ward.
8.A new method for culturing endothelial cells from the rat aorta
Lilong PAN ; Min DAI ; Wei WANG
Chinese Pharmacological Bulletin 1987;0(03):-
Aim To develop a convenient and effective method to isolate and culture primary rat aortic endothelial cells (RAECs). Methods The thoracic aortas were removed by dissection under sterile conditions. Aortas were turned over to expose the luminal surface, and the surfaces were digested with different concentrations of collagenase typeⅠ, incubated at 37℃ for different times, then, cut into pieces and placed luminal side down onto collagen-coated flask with growth medium. Results RAECs could emigrate from explants digested 1h by collagenase typeⅠ(2.0 g?L-1) for 24 h and cells would passage for another 4~5 days. Reached confluency within 3~4 d after subculturing. RAECs were identified by immunoreactivity with Factor-Ⅷ and by the endothelial cell-specific, cobblestone-like morphology. Conclusion It is an effective method to culture primary RAECs from explants digested for 1h by collagenase type Ⅰ(2.0 g?L-1),that can shorten primary culture time.
9.Preparation and clinical application of cDNA microarray for combined detection of hepatitis virus
Zhaohui SUN ; Shuyan WANG ; Min WEI
Medical Journal of Chinese People's Liberation Army 2001;0(11):-
Objective To develop the cDNA microarray for the combined detection of hepatitis virus, and to study the feasibility of applying the microarray in clinical setting. Methods For the small and simple genome of HBV and HDV, the specific primers of PCR were designed with Primer Premier 5.0 program according to the conserved region of HBV and HDV, and 10 and 4 gene fragments were obtained respectively, which could be used as the probes of gene chip. As for the complex genome of HCV, the technique of restriction display PCR (RD-PCR) was employed. Some of gene fragments were selected which were comparatively more specific and sensitive as microarray probes. In order to explore the experimental conditions of microarray in vitro detection, three types of gene chip were prepared successively including HBV and HDV simultaneous detection, HCV detection and modified HCV detection. Results The hybridized signals on the gene chip showed that the effect in detection was satisfactory. Through the prepared gene chips mentioned above, some probes with good quality were selected and the microarray was prepared for HBV, HCV and HDV simultaneous detection. The diagnostic capability of the microarray was evaluated following the washing and scanning steps. Linearity: Serial dilutions of the target DNA or cDNA showed that a strong linear relationship existed between the various concentrations of target DNA or cDNA and the fluorescence intensities obtained from microarray assay (r=0.990 2, r=0.992 1, r=0.981 9), and that the detection range for the microarray was from 104 to 1011 copies/ml. Specificity: Samples from other viruses such as YFV, JET and DV were also subjected to the test and the results were all negative. Reproducibility: The reproducibility of this assay system was evaluated by repeated measurements, and the within-run coefficient of validation of HBV, HCV and HDV were 7.1%, 7.2% and 6.6%, respectively, while the between-run coefficient of validation was 7.9%, 8.2% and 7.6%, respectively. Accuracy: By using the BLAST and the GenBank database, the identity of the obtained sequences including 16 fragments of PCR, 24 RD fragments of HCV and some positive serum samples were verified, each sequenced product was confirmed to be a genome fragment of expected size. In order to fulfill the request of clinical diagnosis, a modified protocol for microarray detection was established. This new protocol consisted of two hours of hybridization, omitting the steps of prehybridization and purification of samples, and the hybridization temperature was elevated from 42℃ to 52℃, et al. The whole protocol could be completed in less than 8 hours. 98, 42 and 5 serum samples from hepatitis B, C and D patients and 130 samples from healthy people were analyzed, respectively, by microarray assay and real-time PCR (Taqmam method). There was a significant correlation between the results of these assays (HBV, r=0.985 4 and HCV, r=0.958 2, P
10.A new method for culturing vascular smooth muscle cells from the rabbit aorta
Wei WANG ; Min DAI ; Lilong PAN
Chinese Pharmacological Bulletin 2003;0(11):-
Aim To develop a convenient and effective method to isolate and culture primary rabbit aortic vascular smooth muscle cells(VSMCs).Methods The thoracic aortas were removed by dissection under sterile conditions.Aortic smooth muscle cells were excised and cleaned of fat and connective tissue,and the isolated vessel media was cut into 1 mm3 pieces.The explants were digested with different concentrations of collagenase typeⅠ,and incubated at 37℃ for different time,then undispersed explants were placed onto a sterile 100-mm plastic tissue culture dish with growth medium.Results VSMCs could emigrate from the explants digested 6 h by collagenase typeⅠ(1.5 g?L-1)for 24 hours,the cells would passage for another 4~5 days.Confluency could be reached within 3~4 days after subculturing.VSMCs were identified by immunoreactivity with ?-actin and by the smooth muscle cell-specific,hills and valley-like morphology.Conclusion It was an effective method to culture primary VSMCs from the explants digested for 6h by collagenase type Ⅰ(1.5 g?L-1),which could shorten primary culture time.