1.Effect of Ophiopogon japonicus polysaccharide MDG-1 on the expression of leptin in endothelial cells.
Shuo WANG ; Yil FENG ; De-sheng XU
Chinese Journal of Applied Physiology 2009;25(2):160-232
Capillaries
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Cells, Cultured
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Down-Regulation
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Endothelial Cells
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metabolism
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Humans
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Leptin
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genetics
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metabolism
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Ophiopogon
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chemistry
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Polysaccharides
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pharmacology
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RNA, Messenger
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genetics
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metabolism
2.The Review of Assessment of Oocyte Quality
Sheng-Yu XU ; De WU ; Ding-Yue WANG ;
China Biotechnology 2006;0(07):-
The assessments of oocyte quality were usually needed in assisted reproductive technology and reproduction science.Based upon the changes of structure and biochemistry in the development of oocyte,assessments of oocyte quality mainly comprised the oocyte morphology and its maturity.The assessment method of oocyte quality from nondestructive manner and invasive technique to provide multi-pathway for evaluating the oocyte quality reasonable was discussed.
3.Bailing Capsule in Preventing Epithelial -Mesenchymal Transitionin Rats with Tubulointerstitial Fibrosis
de-an, ZHAO ; da-sheng, YANG ; ling-yun, BI ; hui-qin, XU ; ying, ZHAO ; xin-de, CHEN
Journal of Applied Clinical Pediatrics 2004;0(09):-
Objective To explorethe effect of Bailingcapsule on epithelial-mesenchymal transition(EMT) inrats withadenine-in-duced tubulointerstitial fibrosis .Methods Tubulointerstitial fibrosis ani mal models were established and SDrats were dividedinto mo-del group (n=30) ,treatment group (n=30) andcontrol group(n=30) ,randomly .Experi mental rats were harvested at 7 w,12 w,17 wafter onset of experi ment and functional evaluations were performed. Histology ,i mmunohistology were examined to investigateboth histolopathology changes and the expression of bone morphogenic protein-7 (BMP-7) ,transforming growth factor-?1(TGF-?1)and a-smooth muscle actin (?-SMA) in kidneys at three ti me points mentioned above ,respectively .Results Compared with controlgroup ,24 h urinary proteinin model grouplost increasingly and significantly difference appeared at three ti me points relative to controlgroup(P0 .05) rel-ative to control group.There was significant difference at 12 wand 17 w(P
4.Bailing Capsule in Preventing Epithelial- Mesenchymal Transition in Rats with Tubulointerstitial Fibrosis
De-an, ZHAO ; Da-sheng, YANG ; Ling-yun, BI ; Hui-qin, XU ; Ying, ZHAO ; Xin-de, CHEN
Journal of Applied Clinical Pediatrics 2005;20(9):939-942
Objective To explore the effect of Bailing capsule on epithelial-mesenchymal transition( EMT) in rats with adenine-in-duced tubulointerstitial fibrosis. Methods Tubulointerstitial fibrosis animal models were established and SD rats were divided into mo-del group ( n = 30), treatment group ( n = 30) and control group( n = 30), randomly. Experimental rats were harvested at 7 w, 12 w,17 w after onset of experiment and functional evaluations were performed. Histology, immunohistology were examined to investigateboth histolopathology changes and the expression of bone morphogenic protein-7 (BMP-7), transforming growth factor-β1 (TGF-β1 )and a-smooth muscle actin (α-SMA) in kidneys at three time points mentioned above, respectively. Results Compared with controlgroup, 24 h urinary protein in model group lost increasingly and significantly difference appeared at three time points relative to controlgroup ( P < 0.01 ). Urinary NAG in model group was markedly higher than that in control group from 7 w after onset (P < 0.01 ) andwas increasingly raised at 12 w and 17 w (P<0.01). The value of blood BUN and Cr in model group increased at 7 w (P>0.05) rel-ative to control group. There was significant difference at 12 w and 17.w (P < 0.01 ). Histologically, kidneys in model group, at 7 w,exhibited tubular casts and gently tubular dilation, granuloma in cortex, mononuclear cells infiltration in tubulointerstitial areas, andmild interstitial fibrosis. At 12 w, the degree of tubular injury and tubulointerstitial fibrosis gradually aggravated. Up to 17 w, diffusetubular dilation or atrophy was observed and focal tubules disappear. Diffuse interstitial fibrosis was exhibited. In normal kidneys, im-munohistochemistry suggested that the light expression of BMP-7 was detected in proximal renal tubular epithelial cells and marked ex-pression was identified in distal tubule, collecting duct, and renal tubular epithelial in junction area between cortex and medulla. How-ever, the expression of BMP-7 in kidneys of model group significantly decreased with increasing tubulointerstitial fibrosis and was nega-tive correlation with the expression of TGF-β1(r = -0. 981 P<0.01) and α-SMA (r= -0.975 P<0.01). Bailing capsule ad-ministration protected the expression of BMP-7 and reduced TGF-β1 and α-SMA expression before 12 w(P< 0.01 ). Conclusions Ourstudy shows an anti-fibrotic reno-protective function of Bailing capsule in rats with tubulointerstitial fibrosis via prevention of epithelial-mesenchymal transition at early stage. However, the beneficial effect lost with increasing tubulointerstitial fibrosis.
5.Contact heat evoked potential:a method of detection
Ju-Yang ZHENG ; Ying-Sheng XU ; Shuo ZHANG ; Jun ZHANG ; De-Xuan KANG ; Dong-Sheng FAN
Chinese Journal of Neurology 2001;0(02):-
Objective To evoke cerebral potentials by stimulating nociceptive fibers with contact heat evoked potentials stimulator (CHEPS)and estimate the nerve conduction velocities of peripheral nerve fibers mediating these responses.Methods Subjects were set in supine position.A heat-foil technology with a rapid rising speed at 70 ℃/s was used to elicit pain and contact heat evoked potentials(CHEP).Contact heat was delivered via one circular thermode (diameter 27 mm,area 573 mm~2).Thermal stimuli were sent at two intensity levels (49.5 ℃ and 54.5 ℃) to three body sites:thenar eminence,the dorsum of hand and proximal volar forarm.Contact heat evoked potentials were recorded from Cz and Pz.A systemic effect between stimulus intensities and pain rating were observed,the main components of this evoked potential were observed.Nerve conduction velocity was calculated from latency difference of CHEP and center to center distance of distal and proximal stimulus arrays.Results The pain intensity rating was 3.2?0.3 and 4.4?0.5 when thenar eminence was stimulated at the temperature of 49.5 ℃ and 54.5 ℃ respectively;the rating was 6.3?0.8 and 7.2?0.5 when the dorsum of hand and proximal volar forarm were stimulated at the temperature of 54.5 ℃ respectively.Three components,Cz/N550,Cz/P750 and Pz/P1000,were found in the evoked potentials.Nerve conduction velocities of the fibers were (12.9?7.5) and (1.7?0.4) m/s respectively,which were corresponding to those of A8 fiber and C fiber.Conclusions CHEPs can be elicited reliably and stably.Velocities of peripheral nerve fibers demonstrate that A8 fiber and C fiber mediate the response.
6.Contact heat evoked potential:the method,normative reference data and it's application in cerebral infarction
Ying-Sheng XU ; Ju-Yang ZHENG ; Shuo ZHANG ; Jun ZHANG ; De-Xuan KANG ; Dong-Sheng FAN ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(09):-
Objective To establish the method of contact heat evoked potential(CHEP)and to explore the value of this evoked potential in pain testing of patients with cerebral infarction.Methods A total of 100 healthy volunteers and 30 patients were examined.The healthy volunteers were divided into 3 groups according to the length of their arms:(Group A:56.0~65.0 cm ;Group B :65.5~74.0 cm ;Group C :74.5~83.0 cm).A recently de- veloped heat-foil technique with a rapid temperature rising rate at 70℃/s was used to elicit pain and contact heat e- voked potentials.Contact heat was delivered via one circular thermode(diameter 27 mm,area 573 mm~2)and set at two intensity levels(49.5℃and 54.5℃)to three body sites:the thenar eminence,the dorsum of hand and proximal volar forearm.The subjects were asked to rate the pain with numerical rating scale after each stimulus and CHEP was recorded from Cz and Pz.The association between stimulus intensities and pain rating was explored,the main compo- nents of the evuked potential were watched.CHEP,sensory conduction velocity(SCV)and somatosensory evoked potentials(SEP)were performed in patients with hemi-anesthesia caused by cerebral infarction.Results The pain intensity ratings were 3.2?0.3 and 4.4?0.5 at thenar eminence,5.0?0.7 and 6.3?0.8 at the dorsum of hand and 5.3?0.6 and 7.2?0.5 at the proximal volar forearm when the temperature of 49.5℃and 54.5℃was applied, respectively;Three components,Cz/N550,Cz/P750 and Pz/P1000,were identified in the evoked potentials.Cz/ N550 and Cz/P750 appeared when the dorsum of hand and proximal volar forearm were stimulated.In contrast,Pz/ P1000 could be identified when nociceptors of thenar eminence and proximal volar fbrearm were excited.In the pa- tients with cerebral infarction,CHEP disappeared or became abnormal on one side,while SCV and SEP were normal on that side.Conclusion It was suggested that CHEP could be elicited reliably in the controls.CHEP is helpful in the assessment of analgesia in patients with cerebral infarction.
7.Abnormal trigeminocervical response in patients with spinal and bulbar muscular atrophy
Ming Lu ; Ying-Sheng Xu ; Ju-Yang Zheng ; Shuo Zhang ; De-Xuan Kang ; Dong-Sheng Fan
Neurology Asia 2012;17(3):209-212
Objective: To investigate the value of the trigeminocervical response (TCR) for revealing bulbar
involvement in patients with spinal and bulbar muscular atrophy (SBMA). Methods: Thirty patients
with SBMA and 30 healthy male controls were included in this study. In all of the normal controls,
stimulation of the infraorbital nerve on one side produced bilateral short latency waves consisting
of a positive/negative wave, p19/n31, the mean latency of which was measured. The mean square
root of the ratio between the amplitude of p19/n31 and the mean rectifi ed surface electromyography
(EMG) activity preceding the stimulus, the A value, was estimated. The parameters of the TCR
were compared between the two groups. Results: Among the patients with SBMA, 21 (70.0%) had
delayed latencies of p19/n31 (P < 0.01) and all (100%) had reduced A values (P < 0.01) relative to
the normal controls.
Conclusions: All parameters of the TCR were signifi cantly different between the patients with SBMA
and the normal controls. T
8.Studies on taste-masking technology of traditional Chinese medicine compounds.
You-jie WANG ; Yi FENG ; De-sheng XU
China Journal of Chinese Materia Medica 2007;32(13):1285-1288
OBJECTIVETo investigate the preparation of Shuanghuanglian taste-masking microspheres by spray-drying.
METHODTraced the compounds bitterness source, marked its curve and optimized the microspheres preparation by taking taste evaluation, microspheres yield and inclusion rate as the indexes.
RESULTThe bitter taste of compounds comes from Forsythia suspensa. The best taste-masking material is Eudragit E100. The optimal spray-drying parameters: solvent concentration 2.0%, inlet air temperature 75 degrees C, aspirator 35.0 m3 x h(-1), spray flow 0.35 m3 x h(-1), pump speed 8.0 mL x min(-1).
CONCLUSIONThe spray-drying as a method of masking the traditional Chinese medicine compound taste have advantages of simple process and efficient masking.
Acrylates ; chemistry ; Desiccation ; Drug Combinations ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Forsythia ; chemistry ; Microspheres ; Oleaceae ; chemistry ; Plants, Medicinal ; chemistry ; Polymers ; chemistry ; Taste ; Technology, Pharmaceutical ; methods
10.Studies on chemical constituents of Zhuang medicine Excoecaria venenata and their cytotoxic activity.
De-sheng NING ; Xiao-xu YAN ; Si-si HUANG ; Ling CHENG ; Juan LI ; Zheng-hong PAN
China Journal of Chinese Materia Medica 2015;40(4):686-690
Fourteen compounds were isolated from 95% ethanol extract by silica gel, MCI, and ODS column chromatography. These compounds were respectively identified as quercetin (1), kaempferol (2), (+)-catechin (3), fraxin (4), protocatechuic acid (5), gallic acid (6), methyl gallate (7), ethyl gallate (8), apocynol A (9), baccatin (10), cerevisterol (11), ellagic acid (12), 3, 3',4'-tri-0-methylellagic acid(13) and N-benzoyl-L-phenylalaninyl-N-benzoyl-L-phenylalaninate(14) by analyzing their spectral data and comparing with the previously reported literatures. Except for gallic acid (6), all other compounds were isolated from this plant for the first time. Compounds 1, 2 and 6 showed moderate anti-proliferation activities on tumor cells.
Cell Line, Tumor
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Cell Proliferation
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drug effects
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Cell Survival
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drug effects
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Drugs, Chinese Herbal
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chemistry
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toxicity
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Euphorbiaceae
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chemistry
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Humans
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Plants, Medicinal
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chemistry
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Spectrometry, Mass, Electrospray Ionization