1.Analysis of the data for inpatients with acute organophosphorous pesticide poisoning in Wucheng.
Yun-he HUO ; Xiu-hua WANG ; Xiao-ying SHANG ; Shuang-lian LIU ; Guang-shu CUI
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(1):32-32
Acute Disease
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Adolescent
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Adult
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Aged
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Child
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Child, Preschool
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China
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Humans
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Infant
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Inpatients
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Insecticides
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poisoning
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Middle Aged
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Organophosphorus Compounds
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Pesticides
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poisoning
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Poisoning
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etiology
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mortality
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therapy
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Risk Factors
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Survival Rate
2.Effects of Needles with Different Diameters on the Gastrointestinal Emptying in Mice
Haolin ZHANG ; Yun ZHOU ; Shengfeng LU ; Ye HUA ; Yong TANG ; Xuejun CUI
Journal of Acupuncture and Tuina Science 2008;6(4):201-203
Objective: To observe the effects of needles with different diameters on the gastrointestinal function in mice. Methods: Eighteen Kunming mice were randomly divided into group of 0.25 mm needle, group of 0.35 mm needle, and control group. The acupoint of Zusanli (ST 36) was needled once a day for 5 days. The effects of needles with different diameters were observed by measuring the distance of the carbon moved in the intestine. Results: The distance of the carbon moved in the intestine was longer in the acupuncture group than in the control group (P<0.05), and it was longer in the group of 0.35 mm needle than in the group of 0.30 mm needle, there was no significant difference (P>0.05). Conclusion: Acupuncture treatment can enhance the peristalsis function of stomach and intestine in mice. The diameter of needle has no effect on the gastrointestinal function.
3.Effects of dry red wine on experimental atherosclerosis in rabbits.
Chinese Journal of Preventive Medicine 2004;38(2):103-106
OBJECTIVETo study the effects of dry red wine in the different stages of experimental atherosclerosis (AS) at the cell, molecular and gene regulation levels in order to provide scientific basis for using dry red wine in the prevention of atherosclerosis.
METHODSBlood vessel wall pathological changes, activity of NF-kB and the expressions of monocyte chemotactic protein-1 (MCP-1) and protein kinase C (PKC alpha) were observed in dietary induced atherosclerosis rabbit model by morphology study, electrophoretic mobility shift assay (EMSA), and in situ hybridyzation, and the effects of dry red wine intervention were examined.
RESULTSDry red wine significantly suppressed the proliferation of atherosclerosis intima and NF-kappaB activation (4w: 18.5 +/- 0.6 vs 13.7 +/- 0.3; 8w: 26 +/- 0.9 vs 17.8 +/- 0.5; 12w: 39.9 +/- 1.2 vs 27.8 +/- 0.8), and down-regulated the expressions of MCP-1 and PKC alpha.
CONCLUSIONSThe results confirmed that dry red wine could protect AS tissues and prolong its development by suppressing NF-kappaB activation, down-regulating the expressions of MCP-1 and PKC alpha, which may take part in pathogenesis of AS.
Animals ; Arteriosclerosis ; etiology ; pathology ; prevention & control ; Blood Vessels ; metabolism ; pathology ; Chemokine CCL2 ; genetics ; Diet, Atherogenic ; Disease Models, Animal ; Gene Expression ; In Situ Hybridization ; Male ; NF-kappa B ; metabolism ; Protein Kinase C ; genetics ; Rabbits ; Random Allocation ; Wine
4.Effects of three aqueous extraction preprocessing methods on total coumarins extract of Angelicae dahuricae Radix
Jin-Hua CHANG ; Yun LI ; Cui-Zhe LIU
Chinese Traditional Patent Medicine 2018;40(5):1065-1069
AIM To investigate the effects of aqueous extraction at normal temperature,40 ℃,and water boiling on total coumarins extract of Angelicae dahuricae Radix.METHODS For the extracts Ⅰ-Ⅳ obtained by ethanol reflux extraction and three aqueous extraction preprocessing methods,respectively,UV and HPLC were adopted in the content determination of total coumarins and imperatorin,then the powder properties and dissolution rates were compared.RESULTS The contents of total coumarins in four extracts were 3.98%,6.03%,6.81% and 4.46%,while those of imperatorin were 0.633%,0.540%,0.465% and 0.155%,respectively.The angles of repose were 48.455°,42.587°,42.689° and 42.024° with the bulk densities of 0.214,0.324,0.316 and 0.354 g/cm3,respectively.Within 100 min,extract Ⅰ demonstrated higher moisture adsorption rate and equilibrium moisture absorption content than the other three extracts.The accumulative dissolution rates of various extracts were much higher than that of medicinal material fine powder within 120 min.CONCLUSION All the three aqueous extraction preprocessing methods can obviously improve the powder properties of total coumarins extract of A.dahuricae Radix and increase the dissolution rate of medicinal material fine powder.
5.Application of Hemodialysis and Filtration in Children with Acute Renal Failure
cui-hua, LI ; jiang-wei, LUAN ; yan-xiang, WU ; xing-xian, YANG ; xiao-wen, WANG ; dong-yun, LI
Journal of Applied Clinical Pediatrics 2006;0(17):-
Objective To discuss the application of the hemodialysis and filtration(HDF) in children with acute renal failure(ARF).Methods By Branc Dialog hemodialysis machine of double-pump,HDF for 19 times and hemodialysis(HD) for 21 times were given to the children with ARF.The serum blood urea nitrogen(BUN),creatinine(Cr),uric acid(UA),?_2 microglobulin(?_2-MG) and the rate of the heart,blood pressure,temperature were observed before and after HD and HDF.Results The clearance rates of BUN,Cr,UA,(?_2-)MG of HDF were markedly higher than those of HD(P
6.Studies on HPLC fingerprint of Radix Aconiti Kusnezoffii.
Ying-yong ZHAO ; Xiu-ming CUI ; Yun DAI ; Hua MIAO
China Journal of Chinese Materia Medica 2006;31(13):1056-1058
OBJECTIVETo establish the HPLC fingerprint of Radix Aconiti Kusnezoffii.
METHODThe chromatographic separation was performed on a Kromasil C18 (4.6 mm x 250 mm, 5 microm) eluted with a mobile phase of acetonitrile-ammonium acetate buffer (2. 5 per thousand acetic acid-ammonia pH 10.5) (60:40). The UV detection wavelength was set at 240 nm and the flow rate was set at 1.0 mL x min(-1).
RESULTThe RSD of precision and repeatability was less than 2%. Under the selected chromatographic conditions, good HPLC fingerprints of Radix Aconiti Kusnezoffii were obtained.
CONCLUSIONThe method was simple, accurate and repeatable. It can be used for the quality control of Radix Aconiti Kusnezoffii.
Aconitine ; analogs & derivatives ; analysis ; Aconitum ; chemistry ; Chromatography, High Pressure Liquid ; methods ; Plant Tubers ; chemistry ; Plants, Medicinal ; chemistry ; Quality Control ; Reproducibility of Results
7.Effects of inward rectifier potassium channel blockers on EPCs function.
Wen-ping LI ; Xiao-dong CUI ; Ning-ning HOU ; Xiao-yun ZHANG ; Jian-hua LIU ; Jing ZHANG ; Min CHENG
Chinese Journal of Applied Physiology 2015;31(5):448-451
OBJECTIVETo investigate the effects of inward rectifier potassium channel blockers (BaCl2, CsCl) on the functions of endothelial progenitor cells (EPCs).
METHODSDensity gradient centrifugation-isolated rat hone marrow mononuclear cells were cultured in vitro. EPCs were harvested and seeded on six culture dish when cells grew to 3-5 passages. Before testing the EPCs were synchronized with M199, which contain 2% fetal calf serum. In the end, EPCs were treated with different intervention. The experiment mainly included two parts: (1) BaCl2 (100 micromol/L) and free BaC2 of Tyrodes solution; (2) CsCl (1 mmol/L) and control. Cell pretreated with blockers above mentioned for 12 h, then the gene expression of stromal cell-derived factor-1 (SDF-1), epoprotenol (PGI2) were assessed, beyond that the ability of adhesion, migration were assayed with different tests. In addition, the medium was collected when EPCs were treated for 3 days. The levels of SDF-1 were measured by sandwich enzyme-linked immunosorbent assay (ELISA). Going even further, EPCs were treated with the signal pathway blockers in advance, after repeat the above steps, in order to analyze the change of SDF-1 and then discuss its mechanism.
RESULTSCompared with control group, BaCl2, CsCl could increase EPC adhesion and migration to same extent. Moreover, the gene expression of SDF-1, PGI2 was significantly up-regulated and the production of SDF-1 increased evidently. Furthermore, the mechanism of SDF-1 secretion increasing mainly was associated with eNOS signaling pathways.
CONCLUSIONBa2+ and Cs+ play important roles in increasing EPCs functions, such as adhesion, migration and secretion.
Animals ; Barium Compounds ; pharmacology ; Cells, Cultured ; Cesium ; pharmacology ; Chemokine CXCL12 ; metabolism ; Chlorides ; pharmacology ; Endothelial Cells ; cytology ; Enzyme-Linked Immunosorbent Assay ; Potassium Channels, Inwardly Rectifying ; antagonists & inhibitors ; physiology ; Rats ; Stem Cells ; cytology
9.Regulatory effect of mild moxibustion on P2X3 receptors in spinal cord, anterior cingulate cortex and thalamic ventral posterolateral nucleus of rats with IBS visceral hyperalgesia
Zhi-Ying ZHANG ; Fang ZHANG ; Zhi-Jun WENG ; Huan-Gan WU ; Yun ZHOU ; Dong HAN ; Guo-Na LI ; Hui-Rong LIU ; Yun-Hua CUI
Journal of Acupuncture and Tuina Science 2021;19(4):239-248
Objective: To observe the therapeutic effect of mild moxibustion on irritable bowel syndrome (IBS) visceral hyperalgesiamodel rats and its regulatory effect on P2X3 receptors in the spinal cord, anterior cingutate cortex (ACC) and thalamic ventral posterolateral nucleus (VPL). Methods: Thirty 8-day-old newborn rats were randomly divided into a normal group (n=6) and a modeling group (n=24) according to the completely random number table method. Rats in the normal group were bred routinely, and those in the modeling group were subjected to preparing IBS chronic visceral hyperalgesia model using colorectal distention (CRD) in stimulation method. Rats successfully modelled were re-divided into a model group, a mild moxibustion group, a P2X3 receptor antagonist group, and a normal saline group according to the completely random number table method with 6 rats in each group. Rats in each group received corresponding interventions from the 37-day old, once a day for 7 consecutive days. Immunohistochemistry and Western blot assays were used to detect P2X3 protein expressions in the spinal cord, ACC and VPL of rats. Results: Under different intensities of CRD stimulation, the abdominal withdrawal reflex (AWR) scores of the model group were significantly increased versus the normal group (all P<0.05); the AWR scores of the mild moxibustion group and the P2X3 receptor antagonist group were significantly reduced versus the model group (all P<0.01). The P2X3 protein expressions in rat spinal cord, ACC and VPL tissues of the model group were significantly increased versus the normal group (all P<0.01); the P2X3 protein expressions in rat spinal cord, ACC and VPL tissues of the mild moxibustion group and the P2X3 receptor antagonist group were significantly reduced versus the model group (all P<0.01). Conclusion: Mild moxibustion can inhibit the P2X3 receptor expressions in the spinal cord, ACC, and VPL tissues of IBS visceral hyperalgesia model rats, which may be the mechanism of mild moxibustion in relieving the central sensitization of rats with IBS visceral hyperalgesia.
10.Effects of 2-methoxyestradiol on the expressions of hypoxia-inducible factor 1α and apoptosis related genes in rat hippocampus following global cerebral ischemia
Jing-Hua PENG ; Hong-Ri ZHANG ; Li-Na HUANG ; Xiao-Bing CHENC ; Tao CUI ; Yun LI
Chinese Journal of Neuromedicine 2009;8(9):884-888
Objective To investigate the effect of 2-methoxyestradiol(2ME2)on the expressions of hypoxia-inducible factor 1α and apoptosis-related genes(RTP801 and caspase-3)in the hippocampus of rats following global cerebral ischemia.Methods A total of 168 adult male SD rats were randomized into 2 groups,global cerebral isehemia group(GI group,n=84)and global cerebral ischemia+2ME2 treatment group(GI+2ME2 group,n=84).In GI and GI+2ME2 groups,4 vessel occlusion(4-vo)global ischemia was induced,and the rats were sacrificed at 6,12,24,48,96h,and 5 and 7 days after the reperfusion.Nissl staining was used for quantitative analysis of the hippocampal neurons,and immunohistochemistry and RT-PCR were performed to detect the expressions of HIF-1α protein,caspase-3 protein and RTP801 mRNA.Results At 48,96h and 5 and 7 days after the reperfusion,the numbers of hippocampal neurons in GI+2ME2 group were 37.09±3.52,26.93±3.10,22.22±3.091,and 6.98±3.07,respectively,significantly higher than those in GI group(P<0.05).2ME2 significantly suppressed the expression levels of HIF-1α and reduced the numbers of the cells positive for HIF-1α protein to 1 1.47±1.9,20.27±2.07,3.12±0.89,1.07±0.83 at these time points(P<0.05).The expressions of caspase-3 protein were decreased significantly in GI+2ME2 group,with the numbers of positive cells of 12.39±1.67,20.65±2.01,15.61±1.26,and 6.57±1.12 at the time points.The absorbance of RTP801 mRNA expression at the time points from 12 h to 5 days in GI+2ME2 group was 0.750±0.078,1.008±0.090,0.717±0.072,0.43 1±0.047,and 0.23 1±0.028,respectively,significantly lower than that in GI group(P<0.05).Conclusion 2ME2 offers brain protection in rats with global cerebral ischemia and suppresses the elevation in the expressions of hypoxia-inducible factor 1α,RTP801 and caspase-3.