1.Effects of Hypoxia on Hippocampal and Cortical Evoked Potentials after Sciatic Nerve Stimulation in Rats
Journal of Third Military Medical University 1984;0(01):-
0.05). When the decreases of HEP amplitude and heart rate were compared, the former was significantly larger than the later (P
2.A new sesquiterpene lactone from the roots of Lasianthus acuminatissimus
Bin LI ; Dongming ZHANG ; Yongming LUO
Acta Pharmaceutica Sinica 2006;41(5):426-430
Aim To study the active constituents for the treatment of rheumatoid arthritis from the ethyl acetate extracts of the roots of Lasianthus acuminatissimus Merr. Methods Various chromatographic techniques were used to separate and purify the constituents. Their structures were established on the basis of 1D, 2D NMR and HRMS spectroscopic analyses and their preliminary evaluation of anti-inflammation effect on the release of β-glucuronidase was carried out. Results Eight compounds were isolated and identified as lasianthuslactone A ( 1 ) , codonolactone ( 2 ), 2, 5-dimethoxy-1,4-benzoquinone ( 3 ) ,uncargenin A (4) , nonadecyl alcohol (5) , 13-docosenoic acid (6) , tetracosanoic acid (7) and β-sitosterol (8). Compound 3 showed a significant inhibitory effect on release of β-glucuronidase rat polymorphous nuclear leukocytes activated by platelet activating factor (PAF). Conclusion Compound 1is a new one, the others were isolated from the plant for the first time and 3 is one of active antiinflammation compound in the plant.
3.Cleaning of Hard Type Endoscope:A Discussion
Fang WANG ; Dongming QU ; Weiliang LUO ; Mingying YUANG
Chinese Journal of Nosocomiology 1994;0(04):-
65% of many the Mao clean.Do contrast of clean the effect.RESULTS The Mao content is higher of many the Mao clean a product to clean effect an obvious good to content opposite and lower of; Apparatus in time processing of under the circumstance hydration meaning be not big. CONCLUSIONS The choice of exactitude clean a product,is assurance the apparatus clean quality and disinfect put out germ effect of importance factor.
4.MRI diagnostic criteria for ischiofemoral impingement syndrome
Dezhou ZHANG ; Dongming LI ; Xuebing YI ; Hua LUO
Chinese Journal of Tissue Engineering Research 2017;21(15):2406-2409
BACKGROUND: Ischiofemoral impingement (IFI) syndrome has attracted more and more attention, but there is little report on IFI because of its low incidence. Moreover, its imaging characters have not yet been fully understood.OBJECTIVE: To discuss the MRI diagnostic criteria for IFI, thus understanding the imaging characters of IFI revealed on MRI.METHODS: Sixteen cases (21 hips) of suspected IFI were selected as experimental group, and 25 healthy volunteers as control group. The bilateral ischiofemoral space (IFS, the shortest distance between the ischial tuberosity and lesser trochanter of femur) and quadratus femoris space (QFS, distance between the lesser trochanter of femur and hamstring tendon insertion) were measured on MRI axial image. The signal and morphology of the quadratus femoris were observed. The differences in QFS and IFS were compared between two groups.RESULTS AND CONCLUSION: (1) Among 16 patients, there were 13 females, and 3 males, and 5 female cases of bilateral IFI. (2) In the experimental group, the IFS ((13.65±3.87) mm versus (22.17±5.75) mm) and QFS ((7.15±3.50) mm versus (12.89±3.13) mm) showed significant differences between affected and opposite sides (P < 0.01). (3) In the control group, the IFS ((23.59±6.14) mm versus (23.08±5.82) mm) and QFS ((12.41±3.75) mm versus (13.22±3.84) mm) did not differ significantly between left and right sides (P > 0.05). (4) Compared with the control group, there were significant differences in IFS and QFS of the affected side in the experimental group, and no significant differences in IFS and QFS of the opposite side. (5) In the experimental group, quadratus femoris appeared with deformation, edema and atrophy. (6) To conclude, the incidence of IFI in females is significantly higher than that in males, and bilateral hips are usually affected. MRI diagnostic criteria for IFI are IFS ≤ 11.46 mm, QFS ≤ 5.53 mm of the affected side, and quadratus femoris present edema and deformation, which are more sensitive on axial fat-suppressed MRI imaging.
5.Polar constituents of Mosla chinensis.
Juanjuan SHEN ; Dongming ZHANG ; Hua LIU ; Yongming LUO
China Journal of Chinese Materia Medica 2011;36(13):1779-1781
OBJECTIVETo study polar constituents of Mosla Chinensis.
METHODThe constituents were isolated and purified by various chromatographic techniques and their structures were elucidated by physico-chemicalproperties and spectroscopic data.
RESULTSeven glucosides were obtained and their structures were identified as 4-hydroxy-2,6-dimethoxyphenyl-beta-D-glucopyranoside (1), 4-hydroxy-3,5-dimethoxyphenyl-beta-D-glucopyranoside (2), 3, 4, 5-trimethoxypheyl-beta-D-glucopyranoside (3), 3-hydroxyestragole-beta-D-glucopyranoside (4), (6S,9R) -roseoside (5), adenosine (6), and p-hydroxybenzoicacid glucoside (7).
CONCLUSIONAll compounds were isolated from the genus Mosla for the first time.
Adenosine ; chemistry ; isolation & purification ; Glucosides ; chemistry ; isolation & purification ; Lamiaceae ; chemistry ; Plant Extracts ; chemistry ; Plants, Medicinal ; chemistry
6.Expression of monocyte chemoattractant protein-1 in the interstitial cystitis patients
Jianwei Lü ; Yiran HUANG ; Yi LUO ; Jing LENG ; Wei XUE ; Dongming LIU
Chinese Journal of Urology 2009;30(10):693-696
Objective To investigate the levels of monocyte chemoattractant protein-1(MCP-1)in the bladder tissue and urine of female interstitial cystitis(IC)patients. Methods Thirty-five IC patients according tO the NIDDK IC diagnosis standard,20 urinary infection (UI) patients and 25 asymptomatic controls were collected.All IC patients were accepted 24 hour voiding diaries,O'LearySant IC Questionnaires,potassium sensitivity test (PST) and cystoscopy under anesthetic.RT-PCR and ELISA analyses were used to determine the levels of MCP-1 in the bladder tissue and urine specimens from women with IC、UI and controls.Immunohistochemistry staining was used to observe the distribution of MCP-1 in bladder tissue of IC. Results Urine MCP-1 was (74.1±36.9)pg/ml in IC patients,(280.65±68.9)pg/ml in UI patients and(10.8±6.9)pg/ml in asymptomatic controls(P<0.01).Tissue MCP-1 was 76.2±24.0 in IC patients,99.5±30.1 in UI patients and 36.1±14.1 in asymptomatic controls(P<0.01)by RT-PCR analyses.The MCP-1 degree increased in IC patients was between UI patients and asyrnptomatie controls.The severity of IC clinical symptom Was correlated with MCP1 levels. Conclusions The changes in the levels of MCP-1 are associated with IC.After excluding urinary infection,it would be useful for early diagnosis of IC by increased level of MCP-1.
7.Proteomics Changes of Mice Lungs and Colon during Lipopolysaccharide-Induced Lung Injury and the Effect of Platycodonis Radix and Rhei Radix et Rhizoma
Fan LEI ; Hong SUN ; Zongyuan LIU ; Weihua WANG ; Weidong XIE ; Xinchun LUO ; Rui LUO ; Dongming XING ; Lijun DU
World Science and Technology-Modernization of Traditional Chinese Medicine 2023;25(9):3132-3145
Objective To study the proteomic profiling of lung and colon during lung injury induced by lipopolysaccharide(LPS).Methods Mice were divided into four groups:the control,LPS,LPS+ Platycodonis Radix(PR)and LPS+ Rhei Radix et Rhizoma(RRR).LPS was injected into the lungs through trachea,and the drugs were given by intragastric injection.The mice were weighed,the faeces of each mouse were determined,and the lungs and colon were isolated for analysis of pathophysiological changes and proteomics.Results ①After 7 days of LPS,the weight of mice decreased,the lung showed inflammatory changes,and the faeces increased.Both PR and RRR can improve the inflammation.②There are lot of proteins was increased in lung mainly involved in gene transcription and in colon mainly involved in mitochondrial,endoplasmic reticulum and metabolism,etc.The up-regulated proteins shared by both lung and colon were involved in myoprotein contraction.PR can inhibit the up-regulated protein more than RRR in lung.③There are large number of proteins were down-regulated in lung involved in cell membrane and in colon involved in nucleic acid binding and ATP binding.The down-regulated proteins shared by both lung and colon were involved in endoplasmic reticulum,nucleic acid binding and cell membrane,etc.The down-regulated proteins in lung by PR are more than those by RRR,which is involved in endoplasmic reticulum,cell membrane,etc.Conclusion LPS-induced lung injury can cause changes in the expression of protein in lung and colon proteins,and the increase in the expression of myoprotein contraction genes may be one of the molecular mechanisms related to lung and colon.
8.Studies on chemical constituents of leaves of Psidium guajava.
Huizheng FU ; Yongming LUO ; Dongming ZHANG
China Journal of Chinese Materia Medica 2009;34(5):577-579
OBJECTIVETo study the chemical constituents of the leaves of Psidium guajava.
METHODThe chemical constituents were isolated by column chromatography on silica gel, Sephadex LH-20 and MPLC. Their structures were elucidated on the basis of spectral analysis.
RESULTNine compounds were isolated from this plant, and the structure of them were identified as ursolic acid (1), 2alpha-hydroxyursolic acid (2), 2alpha-hydroxyoleanolic acid (3), morin-3-O-alpha-L-arabopyranoside (4), quercetin (5), hyperin (6), myricetin-3-O-beta-D-glucoside (7), quercetin-3-O-beta-D-glucuronopyranoside (8), 1-O-galloyl-beta-D-glucose (9).
CONCLUSIONCompounds 3, 7-9 were isolated from this plant for the first time.
Plant Extracts ; chemistry ; Plant Leaves ; chemistry ; Psidium ; chemistry
9.Study on chemical constituents from leaves of Tripterygium wilfordii.
Xu CAO ; Chuangjun LI ; Jingzhi YANG ; Baixing WEI ; Yongming LUO ; Dongming ZHANG
China Journal of Chinese Materia Medica 2011;36(8):1028-1031
In order to study the chemical constituents of the leaves of Tripterygium wilfordii and provide references for the bio-active study, we isolated nine compounds from the dried leaves of Tripterygium wilfordii. Their structures were determined by application of spectroscopic (NMR, MS) and chemical methods. These compounds were isolated and identified as (+)-lyoniresinol (1), (+)-isolariciresinol (2), burselignan (3), dibutyl phthalate (4), cyclo-(S-Pro-R-Phe) (5), cyclo-(S-Pro-R-Leu) (6), cyclo-(S-Pro-S-Ile) (7), 3-hydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-1-propanone (8) and daucosterol (9). Compounds 1-3, 5-8 were isolated from this plant for the first time.
Anisoles
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chemistry
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isolation & purification
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Dibutyl Phthalate
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chemistry
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isolation & purification
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Lignin
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chemistry
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isolation & purification
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Magnetic Resonance Imaging
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methods
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Mass Spectrometry
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methods
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Naphthalenes
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chemistry
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isolation & purification
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Naphthols
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chemistry
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isolation & purification
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Peptides, Cyclic
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chemistry
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isolation & purification
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Plant Extracts
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chemistry
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isolation & purification
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Plant Leaves
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chemistry
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Sitosterols
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chemistry
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isolation & purification
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Tripterygium
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chemistry
10.Silencing long non-coding RNA HCP5 increases the radiosensitivity of glioma cells by up-regulating miR-508-3p expression
Xueyuan LI ; Qiankun LIU ; Shanpeng YUAN ; Tiansong LIANG ; Wenzheng LUO ; Yingwei ZHEN ; Lixin WU ; Kang WANG ; Dongming YAN
Chinese Journal of Behavioral Medicine and Brain Science 2020;29(3):207-214
Objective:To investigate the effect of long non-coding (lnc) RNA HCP5 on the radiation sensitivity of glioma cells and underlying mechanism.Methods:The glioma cells U251 and U87 were irradiated with 0, 2, 4, 6, and 8 Gy rays as different doses.si-Con, si-HCP5, pcDNA, and pcDNA-HCP5 were transfected into cells U251 and U87, recorded as si-con group, si-HCP5 group, pcDNA group, and pcDNA-HCP5 group.si-Con and si-HCP5 were transfected into cells U251 and U87, and then irradiated with 4 Gy rays, respectively, recorded as IR+ si-con group and IR+ si-HCP5 group, the cells only irradiated with 4 Gy rays were recorded as IR group.After si-HCP5 with anti-miR-con and anti-miR-508-3p was co-transfected into cell U251 and U87, respectively, irradiated with 4 Gy rays, recorded as IR+ si-HCP5+ anti-miR-con group and IR+ si-HCP5+ anti-miR-508-3p group, respectively, the transfection was performed by liposome method.RT-qPCR was used to detect the expression of miR-508-3p and HCP5.Cell clone formation assay was used to detect the radiosensitivity of glioma cells.Flow cytometry was used to detect apoptosis, dual luciferase Reporter gene detection experiments detects fluorescence activity.Results:HCP5 was highly expressed in radiation-treated glioma cells, and miR-508-3p was lowly expressed.After silenced HCP5, U251 and U87 cells had enhanced radiosensitivity and apoptotic rate((16.67±1.68) vs (3.58±0.62), t=21.929, P<0.05; (12.32±1.08) vs (4.48±0.71), t=18.198, P<0.05) was increased, and γ-H2AX( (0.45±0.04) vs (0.23±0.05), t=10.307, P<0.05; (0.38±0.04) vs (0.24±0.03), t=8.400, P<0.05), Cleaved caspase-3((0.37±0.04) vs (0.16±0.03), t=12.600, P<0.05; (0.38±0.04) vs (0.22±0.03), t=9.600, P<0.05) expressions were increased.Compared with silencing HCP5 or radiation treatment alone, silencing HCP5 and radiation treatment of U251 cells simultaneously, the apoptosis rate ((25.34±1.54) vs (16.67±1.68), t=11.413, P<0.05; (25.34±1.54) vs (11.13±1.06), t=22.802, P<0.05) was significantly increased, and γ-H2AX((0.69±0.05) vs (0.45±0.04), t=11.245, P<0.05; (0.69±0.05) vs (0.31±0.04), t=17.804, P<0.05), Cleaved caspase-3 ((0.52±0.06/0.37±0.04, t=6.240, P<0.05) (0.52±0.06/0.34±0.04, t=7.488, P<0.05) expressions were increased.The expressions of p-PI3K ((0.21±0.02) vs (0.52±0.04), t=20.795, P<0.05; (0.26±0.23 ), ( 0.67±0.07), t=5.116, P<0.05), p- AKT ((0.22±0.03) vs (0.66±0.07), t=17.332, P<0.05; (0.23±0.04) vs (0.71±0.03), t=28.800, P<0.05) in U251 and U87 cells were decreased.HCP5 can target the regulation of miR-508-3p expression; interfering with miR-508-3p reversed the effects of silent HCP5 and radiation on the radiation sensitization and apoptosis of U251 and U87 cells.It reduced the expression levels of reducing γ-H2AX and Cleaved caspase-3, while increased the expression levels of p-PI3K and p-AKT. Conclusion:Silencing lncRNA HCP5 can enhance the radiation sensitivity of glioma cells and promote apoptosis.The mechanism may be related with the miR-508-3p and PI3K/Akt signaling pathway, which will provide new targets and new ideas for glioma treatment.