1.Mechanisms of secondary brain injury after intracerebral hemorrhage
International Journal of Cerebrovascular Diseases 2010;18(10):787-791
Secondary brain injury is closely associated with brain edema, inflammation response and other injury factors after intracerebral hemorrhage, such as the complement system activation, excitatory amino acid toxicity, the release of vasoactive substances and free radical damage. The main mode of neuronal death during secondary brain injury after intracerebral hemorrhage are necrosis and apoptosis.
2.Survey and research on sensory learning style of undergraduates from different specialties in military medical university
Chinese Journal of Medical Education Research 2015;(12):1243-1246
Objective To analyze the influence of professional factor on sensory learning style of military medical university undergraduates to put basis for search effective teaching and studying strategies. Methods Taking one military medical university for example, the undergraduates in all specialties were surveyed with VARK 7.0 version on the quantity of tendencies of their sensory learn-ing styles, the distributions and strengths on condition of single style. Results ①There were statistical significances (χ2=134.916,P=0.029) in the types of sensory learning style of students from different specialties. In those with single learning orientation, the percentage was the highest in the Biotechnology Specialty (54.5%) and Nursing Specialty (49.2%), while in those with quadruple ones, the percentage was the highest in the Pharmacy Specialty (37.2%) and Chinese medical science specialty (35.3%). ②There were no statistical significance (χ2=20.372,P=0.119) in the intensity of single learning orienta-tion among different specialties. ③There were no statistical significances (χ2=26.587,P=0.185) in the type distribution of single learning orientation among different specialties. Conclusion The learning style type of sensory learning style of military medical university undergraduates were influenced by professional factors, while single learning style type distribution and the strength were not influenced by professional factors.
3.Differences between clinical and imaging standardized resident training method in ultrasound department
Chinese Journal of Medical Education Research 2015;14(6):619-622
The standardized resident training is an important and necessary way to cultivate high-quality medical talents.The goals between clinical and imaging residents in standardized training of ultrasound department are different.For clinical residents,the purpose is to understand the ultrasound images of various common diseases,combine clinical manifestation with ultrasound images,and improve the level of clinical diagnosis and treatment.For imaging residents,the goal is much higher and stricter;they need to master solid ultrasonic knowledge,independent operational and diagnostic ability,in order to provide reliable and accurate ultrasonic diagnosis.We individually design the teaching plan and methods in ultrasound department,in order to improve teaching efficiency and quality.
4.MRI Findings of Spinal Epidural Angiolipomas with Literature Review
Chinese Journal of Medical Imaging 2015;(6):432-434
Purpose To investigate the MRI findings and to improve the understanding of spinal epidural angiolipomas. Materials and Methods MRI findings were retrospectively analyzed in two cases of surgery and pathology proven spinal epidural angiolipomas. Relevant literatures were reviewed. Results Two cases of spinal epidural angiolipomas were located in the lumber and lower thoracic spinal canal. The tumors were elongated or spindle in shape within the epidural space, and parallel to the longitudinal axis. In both cases part of the tumors were hyperintense on T1WI and T2WI, attenuated on fat-saturated sequences with mild enhancement. Some areas were hypointenseon T1WI, hyperintenseon T2WI, unattenuated on fat-saturated sequences with apparent enhancement. Angiolipomas were classified according to the MRI features. One was type I and the other was type III. Both cases were non-infiltrative. Conclusion MRI shows the size, shape, MRI signals and the association with the adjacent structure of spinal epidural angiolipomas. The MRI classification is helpful for improving the understanding of the tumor. MRI is the best imaging modality to diagnose spinal epidural angiolipomas.
5.Determination of the four main saponins in total saponin of Radix et Rhizoma Notoginseng Buccal Tablets by HPLC
Chinese Traditional Patent Medicine 1992;0(07):-
AIM: To establish a method of determining the content of total saponin of Radix et Rhizoma Notoginseng in buccal tablets by HPLC. METHODS: Chromatographic conditions are as follows:Hypersil NH_2 column(4.6 mm?200 mm,5 ?m) as the stationary phase,acetonitrile-1% phosphate buffer solution(0-10 min,20:80;10-20 min,25:75;20-25 min,45:55;25-30 min,50:50) as the mobile phase,the velocity of flow is 1.0 mL/min,the temperature of coloum is 35(?C) and the detection wavelength is 203 nm. RESULTS: The HPLC method has good linearity in determining the total saponin of Radix et Rhizoma Notoginseng content,and we can detect four saponins at the same time,linear range,ginsenoside Rg1 0.093 75-6 ?g,ginsenoside Re 0.011 72-0.75 ?g,notoginsenoside R1 0.023 44-1.5 ?g and ginsenoside Rb1 0.140 6-9 ?g,the correlation coefficient r=0.999 9. CONCLUSION: The established method in this article is simple and convenient,with good reproductivity.We can detect four saponins in the total saponin of Radix et Rhizoma Notoginseng Buccal Tablets at the same time by this method.It can be used for quality control of the total saponin of Radix et Rhizoma Notoginseng Buccal Tablets.
6.Peripheral N-methyl-D-aspartate Receptors Involved in Long-term Hyperalgesia Induced by Peripheral Injection of Formalin in Rats
Chinese Journal of Rehabilitation Theory and Practice 2009;15(7):625-627
Objective To investigate the role of peripheral N-methyl-D-aspartate (NMDA) receptors in the long-term hyperalgesia induced by peripheral injection of formalin in rats. Methods Formalin was injected in the paws of the SD rats with or without the MK-801 pre-injection. OX-42 expressions in the dorsal horn were observed, and the paw withdrawal thermal latency was measured. Results The OX-42 expression decreased and the paw withdrawal thermal latency prolonged in rats with MK-801 pre-injection. Conclusion Peripheral NMDA receptors may be involved in the long-term hyperalgesia.
7.Glia-immunity Interactions Underlying Mechanisms of Pain (review)
Chinese Journal of Rehabilitation Theory and Practice 2008;14(6):501-503
Pain is classically viewed as being mediated solely by neurons. This view is dramatically changing by new research that spinal cord glial cells amplify pain. Recognition that glial activation is a powerful driving force for exaggerated pain opens up new ways to approach effective clinical pain control. The authors reviewed spinal cord glial cells and cytokines as key players in the creation and maintenance of neuropathic pain.
8.Differentiation of Candida Species by PCR-SSCP Fingerprinting Analysis
Microbiology 1992;0(06):-
Thirty strains of seven Candida species from CICC(China Center of Industrial Culture Collection)were studied. The strains were differentiated by ITS1 region PCR-SSCP fingerprinting analysis and ITS2 region PCR-SSCP fingerprinting analysis. Results showed that both ITS1 region and ITS2 region were able to differentiate the seven species of Candida clearly. Contrasting the maps and effects on the identification of Candida species of ITS1 region with that of ITS2 region, result indicated that on the identification of Candida species the application of ITS2 region was better than ITS1 region.
9.The phosphoproteome analysis in PBMCs of SLE patients
Juan CHENG ; Hualin MA ; Yong DAI
Acta Universitatis Medicinalis Anhui 2014;(7):962-965
Objective To investigate the aberrant expression of phosphoproteome analysis of peripheral blood mononuclear cells( PBMCs) in patients with systemic lupus erythematosus( SLE) . Lay the foundation for further re-search of mechanism and treatment in patients with SLE. Methods Phosphopeptides were enriched using TiO2 from PBMCs of patients and healthy subjects, then analyzed by automated LC-MS/MS analysis. Phosphorylation sites were identified and quantitated by MASCOT and MaxQuant. Differential expressed proteins and peptides were screened based on the bioinformatics analysis. Results 1 035 phosphorylation sites were identified from SLE com-prared with normal subjects, 618 corresponding genes were screened out in annotation proteins. Pathway analyses showed 12 signaling pathways were identified. There were the most difference phosphorylation sites in mitogen acti-vated protein kinases( MAPK) signaling pathway. Conclusion Differently phosphorylated proteins and peptides can be detected in patients with SLE, which can be used as a mechanism of reference and supplement combined with metabolic pathway, and might be used as a potential target for treatment and research of SLE.
10.Chemokine CCL18 and tumor
Xiao JIANG ; Juan XIA ; Bin CHENG
Journal of International Oncology 2014;41(10):724-726
Chemokine CCL18 plays significant roles in immune regulation by recruiting of inflammatory cells,which involves in immune and inflammatory processes.CCL18 protein is overexpressed in the serum of patients with cancer and some tumor tissues.However,it is still controversial that CCL18 plays the role of tumor promoter or tumor suppressor.Researches on the roles and mechanisms of CCL18 can provide new target for diagnosis and treatment of cancer.