1.Protective effects of angiotensin Ⅱ receptors antagonist on the LPS-induced lung acute injury
Chinese Journal of Emergency Medicine 2006;0(09):-
Objective To investigate the effects of angiotensinⅡ(AngⅡ) receptors antagonist on the LPS-induced acute lung injury (ALl).Method Wistar rats were randomly divided into three groups:control group;in LPS group,mrs were treated with LPS (10 mg/kg) at 3,6,12,and 24 hours;in LPS+ AngⅡreceptors antagonist group,pre-expasure to AngⅡreceptors antagonist [Sar~1,Ile~8] AngⅡfor 30 minutes before treated with LPS (10 mg/kg) for 6 hours.All the rats were killed,and the lung tissue was collected.Results Compared with control group pulmonary wet/dry weight ratio was significantly higher in the other two groups (P
2.Effect of p38MAPK in icariin induced osteoblast differentiation
Hong LI ; Yun ZHOU ; Xiuzhen ZHANG
Chinese Journal of Endocrinology and Metabolism 2011;27(2):122-124
This paper was aimed to investigate the effects of icariin on the expression of p38 mitogen activated protein kinase(MAPK)protein in rat osteoblasts cultured in vitro, to elucidate the signal transduction of icariin in preventing and treating osteoporosis. The results showed that p38MAPK could be activated by icariin within 5min, and Cbfal could also be upregulated, and SB203580, an inhibitor of p38MAPK pathway, could partly inhibit Cbfal upregulation by icariin.
3.Research development of leukotriene receptor antagonists as treatment for children with asthma
Hong ZHANG ; Yun GAO ; Hongxia ZHAO
International Journal of Pediatrics 2011;38(3):307-310
Leukotriene is a crucial inflammation medium in the process of asthma,involved in the inflammation and remodeling of airway.This article summarizes the origin,synthesis and biological activity of leukotriene in asthma.and discuss the implications of leukotriene receptor antagonists(Montelukast)for asthma in children.The randomized.double-blind and muhicenter clinical trials are needed to determine the efficacy of Montelukast in infants less than 2 years old with asthma.
4.A STUDY ON CULTURE OF ENDOMETRIAL CELLS AND THEIR INVASIVENESS
Yun ZHAO ; Hong ZHANG ; Yal LI
Medical Journal of Chinese People's Liberation Army 1983;0(05):-
To study the invasiveness of endometrial cells of endometriosis. 49 specimens of either normal endometrials or that from endometriosis were cultured, and the invasiveness of them different cells was studied by Transwell Col Insert cell culture plate. The results showed that the invasiveness of stromal cells was stronger than that of epithelial cells; the invasiveness of cells from patients with endometriosis was stronger than that of the controls. The results suggested that stromal and epithelial cell of the endometrium may play different roles in the pathogenesis of endometriosis; the character of the endometrium from patients with endometriosis was different from that of women without endometriosis.
5.The relationship between implicit memory and auditory evoked potential index under general anesthesia
Rumen JIA ; Hong ZHANG ; Yun YUE
Chinese Journal of Anesthesiology 1995;0(10):-
Objective To investigate the effects of propofol and inhalation anesthetics on the implicit memory under general anesthesia and determine the critical value of auditory evoked potential index (AEI) at which implicit memory no longer exists. Methods Sixty ASA I-II patients of both sexes scheduled for elective abdominal surgery or surgery on lower limb were enrolled in the study. They averaged (41.25?9.25) years and (63.8?9.57) kg. Patients with psychoneural or memory disorders were excluded. The patients were randomly divided into five groups of 12 patients in each group: isoflurane, sevoflurane, desflurane, propofol and control group. Each inhalation anesthetic group was further divided into two subgroups based on their end-tidal concentration: 0.8 or 1 .0 MAC. Propofol group was divided into two groups based on the infusion rate: 8 mg.kg. h-1 or 10mg.kg.h-1 . In control group operation was performed under epidural anesthesia. The patients were unpremedicated. Anesthesia was induced with propofot 1 .5-2.0 mg.kg and vecuronium 0. -0.2mg.kg-1, and maintained with inhalation anesthetic or propofol infusion supplemented with intermittent boluses of fentanyl and vecuronium. AEI was continuously monitored and recorded before anesthesia (T0), when the patient was sleepy (T1 ) and did not respond to verbal command (T2 ), after intubation (T3), after skin incision (T4), when peritoneum was being closed (or 30 min before the surgery) ( T5 ) and during emergence from anesthesia ( T6 ) . Eight hours after surgery muddy identified hearing rate was determined. Hemodynamic parameters were continuously monitored during operation. Results There was significant difference in AEI between the two subgroups before and after induction (P
6.Transplantation of bone marrow mesenchymal stem cells promotes recovery of renal ischemia-reperfusion injury in rats
Ting ZHANG ; Yun ZHOU ; Ya ZHANG ; Zhihua HONG ; Xiangming YAN
Basic & Clinical Medicine 2006;0(08):-
Objective To investigate the therapy effects of bone marrow mesenchymal stem cells (MSCs) on renal recovery after ischemia-reperfusion injured. Methods Seventy-two Spargue-Dawley rats were randomly divided into 4 groups as normal control, sham operated control, I/R group(n=30) and the MSCs group. Rats were subjected to 45 min bilateral renal ischemial-reperfusion injury with microvascular clips, after 60 min of reperfusion they were injected in BrdU positive MSCs(1?106/mL)intravenously. The animals were sacrificed at 12 h, 3 d, 7 d, 14 d, and 42 d after reperfusion, and the bilateral kidney and blood samples were harvested. The blood urea nitrogen(BUN) and serum creatinine(Scr) were measured on automatic biochemistry analyzer. Renal morphologic changes were scored with Paller’s criterion on hematoxylin and eosin(H&E) stained sections. The apoptosis of tubular cells were examined by terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling (TUNEL). PCNA positive tubular cells were detected immunohistochemically as proliferation index. And confocal microscopy were used to identified the distribution of BrdU positive MSCs. Results After 12 h, 3 d of reperfusion, the Scr value of MSCs group were signifcantly lower than I/R group(P
7.Clinical and magnetic resonance imaging studies of Anderson-Fabry disease: 2 cases report
Xiaoxuan LI ; Lu WANG ; Yun ZHANG ; Wei ZHANG ; Daojun HONG ; Zhaoxia WANG ; Huizhen GAO ; Yun YUAN
Chinese Journal of Neurology 2011;44(8):550-553
Objective To report 2 cases of Fabry disease with early-onset ischemic stroke and investigate the clinical and image features. Methods The 2 patients developed dizziness, diplopia and progressive memory decline at 32 and 25 years of age respectively. The α-galactosidase A (GLA)activity was 4. 3 U in case 1 and 1. 0 U in case 2 ( normal range 100-500 U). Skin biopsy showed numerous membrane bounded osmiophilic laminar material in vascular smooth muscle cells and endothelial cells. GLA gene analysis revealed GLA exon 7 1033-1034 TC del in case 1 and GLA exon 3 466G > A in case 2. The 2 patients were evaluated by Mainz severity score index (MSSI) and cranial MRI. Results The general MSSI was 32 in case 1 and 16 in case 2, with the highest score of neurological score ( 11 and 14). Both cases showed multifocal infarcts in bilateral cerebellum, occipital lobe, basal ganglia, which were hypointensity on T1 WI and hyperintensity on T2WI. There were hyperintensity changes in the pulvinar and basal ganglia on T1 WI in case 2. Conclusions Cerebral ischemic stroke could appear as initial symptoms in Fabry disease,which predominantly involved the posterior circulation. There might be no dilation of basal-vertebral artery.
8.SIMPP analysis on major satisfaction of students
Lu ZHANG ; Hong AN ; Ou TAO ; Surong YAN ; Yun WANG
Chinese Journal of Medical Education Research 2015;(7):690-693
The major satisfaction of college students will influence their learning interest and motivation, and then influence their learning achievement and future employment. Under the guidance of the concept of the micro system engineering of the education reform, the degree of the major satis-faction of the students in TCM colleges is analyzed by SIMPP method. The results show that students' behavior mode such as their preview situation, teaching adaptation, course satisfaction, students' achievement and their attitude of poor academic performance is closely related to the degree of major satisfaction. Teachers can judge the degree of major satisfaction by following these pattern behaviors;improve the rationality and accuracy of the degree of major satisfaction.
9.Reversion of down-regulated mRNA expression for Nav1.8 in dorsal root ganglia of rats with neuropathic pain by APA microcapsulized BCCs subarachnoid transplantation
Longhe XU ; Yilong XUE ; Yun LUO ; Shuilong GUO ; Hong ZHANG
Chinese Pharmacological Bulletin 1986;0(05):-
AIM To invesigate the effect of subarachnoid transplantation of APA microcapsulized bovine chromaffin cells (BCCs) on mRNA expression for Nav1.8 in the dorsal root ganglia neurons(DRG) of rats with neuropathic pain by means of in situ hybridization. METHODS SD rats were randomly divided into four groups of five. Normal rats were used as control group (group C). Rats with right sciatic nerve been ligated were used as CCI group. Five to six hundred empty APA microcapsules(group APA) or 5?10 6 APA microcapsulized BCCs (group APA-BCCs) were grated into subarachnoid space of CCI rats 7 days after operation. Allodynia and hyperalgesia were measured by Von-Frey filaments and CO 2 laser 7 days after transplantation. DRG in lumbar four and five was taken out and 15 ?m freezing sections were made 7 days after tansplantation. Sections was used to detect mRNA expression for TTX-resistent Na + Nav1.8 by in situ hybridization with Dig-labeled RNA probe. RESULTS The mRNA hybridization signal for Nav1.8 in DRG of group CCI and group APA was lower than that of group C. The expression of mRNA for Nav1.8 in DRG was higher in group APA-BCCs than that in group CCI and group APA with abatement of allodynia and hyperalgesia. There was no difference in the mRNA hybridization signal for Nav1.8 in DRG between group APA-BCCs and group C. CONCLUSION mRNA expression for Nav1.8 in DRG of CCI ratswas down-regulated. APA microcapsulized BCCs grafting can reverse the down-regulation of mRNA expression for Nav1.8 in DRG of CCI rats. Restoration of mRNA expression for Nav1.8 in DRG contributes to the analgesic effect of subarachnoid transplantation of APA microcapsulized BCCs.
10.Preliminary Study on Molluscicidal Effect of Active Components from Centipeda minima
Hong NI ; Anning MA ; Yun ZHANG ; Peng GENG
Chinese Journal of Parasitology and Parasitic Diseases 1987;0(04):-
The active components from Centipeda minima were extracted by water or ethanol, and identified by FTIR spectroscopy and UV-visible spectrophotometer. The molluscicidal effect of aqueous extract and ethanol extract from Centipeda minima against Oncomelania hupensis was determined as referring to the WHO guidelines for laboratory molluscicidal test. Treated with over 2.0 g/L aqueous extract and ethanol extract for five days, the mortality of O. hupensis was up to 100%, and their LC50 for snails was 0.50 g/L and 0.62 g/L, respectively. The molluscicidal activity of aqueous extract was higher than that of ethanol extract. The main components of aqueous extract and ethanol extract were sesquiterpens lactones and sterols.