2.Risk Factors of Cerebral Ischemia and Alzheimer's Disease
Chuan-Qin FANG ; Hua-Dong ZHOU ;
International Journal of Cerebrovascular Diseases 2006;0(11):-
Alzheimer's disease (AD) is the most frequent type of dementia in elderly,which has been regarded as a neurodegenerative disease.The traditional point of view considers that AD and vascular dementia are two different types of dementias both from their pathogenesis and treatment;however,in recent years,a growing body of evidence indicates that the vascular factors are playing an important role in the development and occurrence of AD.This article reviews cerebral ischemia and its risk factors including the effects of hypertension,diabetes,and cholesterol in the development and occurrence of AD,so as to provide new strategies in preventing,and delaying the occurrence and progression of AD.
3.Discussion on Techniques of Preliminary Safety Evaluation of Transgenic Chinese Herb
Yan DONG ; Lang YI ; Dandan ZHU ; Guihuang HUA ; Lian ZHOU
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(3):466-470
Insertion of foreign genes into the genome map of Chinese herb always produces the intended beneficial effects, but also the unintended effects. Analysis of genomic function and metabolic end products based on the principle of substantial can reveal the influence on the quality of herbs, which is able to provide valuable refer-ence for the following evaluation on pharmacology and toxicology.
4.Effects of mycorrhizal colonization and medicine quality of Paris polyphylla var. yunnanensis inoculated by different foreign AM fungi species.
Zhou NONG ; Bo DING ; Yuan FENG ; Wen-hua QI ; Hua ZHANG ; Dong-qin GUO ; Jun XIANG
China Journal of Chinese Materia Medica 2015;40(16):3158-3167
After 28 foreign species of AM fungi were inoculated in sterilized soil, the effects of the AM mycorrhizal colonization and the medicine quality of Paris polyphylla var. yunnanensis were observed by combination of inoculation test in pot at room temperature and instrumental analysis. The results showed that, compared with control group (CK), the inoculation of foreign AM fungi in the soil influenced the spore density, mycorrhizal infection rate, and colonization intensity of AM fungi in root system of P. polyphylla var. yunnanensis. The inoculation of foreign AM fungi enhanced the mycorrhiza viability of P. polyphylla var. yunnanensis by increasing the activity of succinic dehydrogenase (SDH) and alkaline phosphatase (ALP) in intraradical hyphae. The content of single steroid saponin in rhizome of P. polyphylla var. yunnanensis showed variation after P. polyphylla var. yunnanensis was inoculated by different foreign species of AM fungi, which was beneficial for increasing the medicine quality; however, the kinds of steroid saponin showed no difference. In a degree, there was a selectivity of symbiosis between P. polyphylla var. yunnanensis and foreign AM fungi. And we found that the Claroideoglomus claroideum and Racocetra coralloidea were best foreign AM fungi species for cultivating P. polyphylla var. yunnanensis under field condition.
Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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analysis
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Fungi
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classification
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growth & development
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Liliaceae
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chemistry
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growth & development
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microbiology
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Mycorrhizae
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classification
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growth & development
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Plant Roots
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chemistry
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growth & development
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microbiology
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Quality Control
5.Role of spinal Toil-like receptor 4 signaling pathway in development of inflammatory pain in rats
Dong JI ; Yalan ZHOU ; Feng JI ; Shuzhuan ZHOU ; Chenyue ZHANG ; Hua XU
Chinese Journal of Anesthesiology 2017;37(5):544-546
Objective To evaluate the role of spinal Toll-like receptor 4 (TLR4) signaling pathway in the development of inflammatory pain in rats.Methods Thirty-six adult male Sprague-Dawley rats were divided into 3 groups (n=12 each) using a random number table:control group,inflammatory pain group and TLR4 signaling pathway inhibitor epigallocatechin gallate (EGCG) group (EGCG group).Inflammatory pain was induced by injecting 50 μl of complete Freund's adjuvant (CFA) into the ankle joint cavity of the left hindpaw of rats anesthetized with isoflurane.At 1-3 days after injection of CFA,EGCG 30 μg was intrathecally injected once a day in group EGCG.At 1,3 (30 min after intrathecal injection),5and 7 days after injection of CFA,the mechanical paw withdrawal threshold (MWT) and thermal paw withdrawal latency (TWL) were measured.The ipsilateral L4.5 segments of the spinal cord were removed at 3 days after CFA injcction for determination of TLR4 expression (by Western blot) and contents of tumor necrosis factor-alpha (TNF-oα),interleukin-6 (IL-6) and IL-1β in the spinal dorsal horn (by enzymelinked immunosorbent assay).Results Compared with control group,the MWT was significantly decreased and the TWL was shortened at each time point after injection of CFA,the expression of TLR4 in the spinal dorsal horn was up-regulated,and contents of TNF-α,IL-6 and IL-1β in the spinal dorsal horn were increased in inflammatory pain group (P< 0.05),and no significant change was found in the parameters mentioned above in EGCG group (P>0.05).Compared with inflammatory pain group,the MWT was significantly increased and the TWL was prolonged at each time point after injection of CFA,the expression of TLR4 in the spinal dorsal horn was down-regulated,and contents of TNF-α,IL-6 and IL-1β in the spinal dorsal horn were decreased in EGCG group (P<0.05).Conclusion Spinal TLR4 signaling pathway is involved in the development of inflammatory pain in rats.
6.Correlation between distribution of rhizospheric microorganisms and contents of steroidal saponins of Paris polyphylla var. yunnanensis.
Nong ZHOU ; Wen-hua QI ; Guo-sheng XIAO ; Bo DING ; Hua ZHANG ; Dong-qin GUO ; Wei SHEN
China Journal of Chinese Materia Medica 2015;40(6):1055-1060
In this paper, the varying pattern of the amount of rhizospheric microorganisms, including bacteria, actinomycetes and fungus, was observed during the cultivation of Paris polyphylla var. yunnanensis. And the correlations between number of rhizospheric microorganisms and the quality of P. polyphylla var. yunnanensis were also studied. The results showed that the rhizospheric microorganism source of P. polyphylla var. yunnanensis was rich. The distribution of rhizospheric microorganisms (soil bacteria, fungus, actinomycetes, potassium-solubilizing bacteria, inorganic phosphorus-solubilizing bacteria, organic phosphorus-solubilizing bacteria) collected from different origin places existed significant difference (P < 0.05). The varying pattern for the amount of rhizospheric microorganisms was showed as following: the amount of bacteria > the amount of actinomycetes > the amount of fungus. The medicinal quality of P. polyphylla var. yunnanensis was influenced by their habits, and the increase of cultivation years caused the obvious decrease of the quality of P. polyphylla var. yunnanensis. Therefore, the increase of cultivation years will cause the variation of the soil micro-ecology flora, and decrease the nutrient absorption and the utilization of P. polyphylla var. yunnanensis, which will make the decrease of the medical quality of P. polyphylla var. yunnanensis.
Bacteria
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genetics
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growth & development
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isolation & purification
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Biodiversity
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China
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Fungi
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genetics
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growth & development
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isolation & purification
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Liliaceae
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chemistry
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microbiology
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Plant Extracts
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analysis
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Rhizome
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chemistry
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microbiology
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Rhizosphere
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Saponins
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analysis
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Soil Microbiology
7.Inhibition effect of Heme oxygenase-1 activator Copp on irradiation-induced endothelial cell apoptosis
jing, YU ; guo-hua, WU ; qing, LIN ; ren-hua, ZHOU ; dong-qing, LU ; jia, WANG ; qian, LIU ; xiu-yan, FEN
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(12):-
Objective To explore protective effect of Heme oxygenase-1(HO-1) on irradiation-induced endothelial cell apoptosis.Methods Human endothelial cell line EA.hy926 were administered with or without HO-1 activator Copp and/or HO-1 inhibitor Znpp,respectively.Then,cells were treated with or without 8 Gy radiation.The HO-1 protein expression of cells were assessed with Western blotting and apoptosis of cells treated with irradiation were evaluated with flow cytometry.Moreover,cytochrome C releasing into cytosol were also determined by Western blotting. Results In PBS+R group,HO-1 protein expression of EA.hy926 was low posterior to irradiation.When cells were preconditioned with Copp and/or Znpp,then recieved with 8Gy irradiation,the HO-1 protein expression of EA.hy926 increased significantly in comparision with the PBS+R group(P
8.Research on education status and training needs of community nurses
Yu-Hua SHI ; Jing ZHOU ; Dong-Hong ZHU ; Gui-Hua XU
Chinese Journal of Modern Nursing 2011;17(28):3415-3417
Objective To investigate the status and needs of community nurses' education in Changzhou,and to provide evidence for improving quality of further training.Methods Totally 402 community nurses from 72 community hospitals in Changzhou were recruited in the survey and finished the questionnaires.Results 73.1% of community nurses continue to degree education after work,79.3% of them have attend the post training.98.7% of them considered post training is necessary,and only 35.6% were willing to participate in training.Age and whether received community nursing education are the most important influence factors (OR =0.541,P =0.001 ; OR =2.430,P =0.003).In the need of knowledge and skills,there were significant differences in the age groups ( F =3.074,P =0.028).Conclusions Teaching reform is necessary.Increasing the training of young community nurses backbone is imperative and giving full play to the advantages of high qualification community nurses.
9.Simultaneous Determination of Nonylphenol, Octylphenol and Bisphenol A in Textiles and Food Packaging Materials by Liquid Chromatography Tandem Mass Spectrometry
Qiang MA ; Hua BAI ; Chao WANG ; Qing ZHANG ; Xin ZHOU ; Hui DONG ; Baolin WANG
Chinese Journal of Analytical Chemistry 2010;38(2):197-201
A comprehensive analytical method based on liquid chromatography tandem mass spectrometry has been developed for the determination of nonylphenol, octylphenol and bisphenol A in textiles and food packaging) materials. Various textile and food packaging material samples were extracted under the conditions of 10.3 MPa and 120 ℃ by accelerated solvent extraction method with two static cycles using ethanol as the extraction) solvent. The extract was cleaned up by Supelclean Envi-Carb solid phase extraction cartridge. Qualitative) and quantitative analyses were carried out for the analytes under the multiple reaction monitoring(MRM) mode after the chromatographic separation on Waters XBridge C_(18))(150 mm×2.1 mm, 3.5 μm) column) with methanol-0.1% NH_4OH gradient elution. The limits of detection(LODs) for alkylphenol, octyphenol and bisphenol A were 0.5 μg/kg. The mean recoveries for textile samples at the spiked level of 0.5-10 μg/kg were 86.9%-92.5%, with the relative standard deviation less than 9.1%. The mean recoveries for food packaging material samples at the spiked level of 0.5-10 μg/kg were 87.8%-93.0%, with the relative standard deviation less than 8.8%. The method is accurate, simple, rapid, and adapts to the inspection of nonylphenol, octylphenol and bisphenol A in textiles and food packaging materials.
10.The analysis on short-term clinical efficacy of In-Space after decompressive laminectomy for treatment of degenerative lumbar spinal stenosis with vertebral instability
Rui DU ; Dong ZHOU ; Luming NONG ; Nanwei XU ; Hua XIE ; Shijie JIANG ; Gongming GAO
Chinese Journal of Postgraduates of Medicine 2011;34(35):4-7
Objective To investigate the difference of short-term clinical efficacy between decompressive laminectomy into In-Space and simple decompressive laminectomy for treatment of lumbar spinal stenosis with vertebral instability.Methods Thirty-three patients with lumbar spinal stenosis with vertebral instability admired from May 2009 to July 2010,were divided into two groups by random number table.Group A of 16 cases was treated with laminectomy decompression and placement In-Space,group B of 17 cases was treated with laminectomy decompression.Lumbar anteroposterior,lateral and flexion-extension X-ray films,preoperatively,and the follow-up were used to measure anterior and posterior disc height,foraminal height,segmental lordotic angle at surgical level.Using Oswestry disability index (ODI) and the visual analogue scale (VAS) to evaluate the clinical efficacy.Results All patients were followed up for (13.20 ± 2.91 ) months (range 6 to 21 months).The anterior disc height after operation of group A was slightly decreased compared with the preoperative(P> 0.05 ),the posterior disc height at 1 day after operation and foraminal height after operation of group A were significantly increased compared with the preoperative (P< 0.05).The anterior and posterior disc height,foraminal height of group B at 1 day,1 month,3 months after operation were no significantly different compared with the preoperative (P > 0.05 ),at 6 months after operation and the end of follow-up were significantly decreased compared with the preoperative or 1 day after operation (P < 0.05 ).Activity of lumbar vertebra by preoperative 9.86° ± 1.90° decreased to the end of followup 5.60° ± 2.02°in group A,while activity of lumbar vertebra by preoperative 9.89° ± 2.00°increased to the end of follow-up 10.76° ± 3.14° in group B.At the end of follow-up,lumbar back pain VAS,ODI score [ (2.02 ± 1.98 ),( 20.18 ± 18.80) scores ] of group A were significantly lower than those of group B [ (4.15 ±2.36),(30.39 ± 16.62 ) scores ],the differences were statistically significant (P < 0.05 ).No patient suffered In-Space loosening,fracture and emerge.Conclusion The operation of In-Space can maintain spinal mobility and stability as well as avoiding lumbar vertebral instability,and its short-term efficacy is satisfactory.