1.Study on secondary metabolites of endophytic fungi Penicillium polonicum.
Jing LIU ; Guang-Zhi DING ; Lei FANG ; Shi-Shan YU
China Journal of Chinese Materia Medica 2014;39(20):3974-3977
The PDB culture medium was selected to ferment the endophyte strain, and the secondary metabolites of endophytic fungi Penicillium polonicum were studied. Combined application of Sephadex LH-20, ODS and HPLC chromatographies over the ethyl acetate extract of the fermented culture led to the isolation of 6 compounds. By spectral methods, the structures were elucidated as [3, 5-dihydroxy-2-(7-hydroxy-octanoyl)]-ethylphenylacetate (1), (3, 5-dihydroxy-2- octanoyl)-ethyl phenylacetate (2), (5, 7-di- hydroxy-9-heptyl)-isobenzo pyran-3-one (3), 3-(hydroxymethyl) 4-(1E)-1- propen-1-yl-(1R, 2S, 5R, 6S)-7-oxabicyclo [4.1.0] hept-3-ene-2, 5-diol (4), (E)-2-methoxy-3-(prop-1-enyl) phenol (5) and p-hydroxylphenylethanol (6).
Biological Factors
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chemistry
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metabolism
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Endophytes
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chemistry
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isolation & purification
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metabolism
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Fabaceae
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microbiology
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Fermentation
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Penicillium
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chemistry
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isolation & purification
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metabolism
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Secondary Metabolism
2.Effect of 36 item neuro-motor examination on early diagnosis of children with cerebral palsy within 1 year-old
Shi-guang REN ; Shu-zhe WANG ; Yu-jin ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2002;8(11):643-645
Objective To evaluate the effect of 36-neuro-motorial examination on early diagnosis of children with cerebral palsy within 1 year-old.Methods36-neuro-motorial examination was analysed in 210 children with cerebral palsy from 2 to 12 months. Results4-29 items reflecting the abnormity of reflex, muscle tone, posture and motion were observeed in patients with cerebral palsy.If these abnormities were laid according as frequency among 2-6 months,reflex abnormities are knee tendon reflex, palmar grasp reflex,Babinski sign,asymmetrical tonic neck reflex,ankle clonus,sitting equilibrium reflex,stepping reflex,crossed extension reflex,tonic labyrinthine reflex,trunk incurvation reflex,Moro reflex; posture abnormities are head to back≥15°,from supine to the side position, axillar suspension reflex,posterior neck fovea≥1cm in the supine position,landau reflex,Vojta reflex,traction reflex,tonic torticollis,abnormal spontaneous posture;muscle tone abnormities are foot dorsiflexion angle,scarf sign,tonic palmar grasp,to up the foot heel≥30° in the stand position,thumb decussation to the palm,poples angle,adductor angle,heel-ear angle; others are head cycle≤-2s, squint, active movement attenuation or abnormity, auditory abnormity, visual abnormity, ophthalmodonesis, epilepsy.Conclusions 36-neuro-motorial examination is effective for early diagnosis of cerebral palsy within 1 year.
3.Study of biomechanical properties of mucosa scars after cleft palate surgery.
Min HOU ; Guang-Yu SHI ; Wei QIU ; Lan-Cheng ZHANG ; Tian-Ping YU ; Chun-Ming LIU
Chinese Journal of Plastic Surgery 2013;29(6):453-456
OBJECTIVETo explore biomechanical properties and stress-strain of mucosa scars after cleft palate surgery.
METHODSAfter the model of mucosa scars was made, the mucosa scars and normal mucosa were excised and examined immediately by tensionometry.
RESULTSThe mucosa scars after cleft palate surgery were compared with normal mucosa. The Poisson's ratio of mucosa scars and normal mucosa was 0.5 and 0.49, respectively, showing no significant difference between the two groups. The ultimate Young's modulus of mucosa scars was about 24.22 MPa, however, it declined to 3.32 Mpa in normal mucosa.
CONCLUSIONSThe mucosa scars after cleft palate surgery are biomechanically weaker than normal mucosa. It can be used for further research, such as maxillary orthognathic surgery, distraction osteogenesis, and orthodontic treatment.
Biomechanical Phenomena ; Cicatrix ; physiopathology ; Cleft Palate ; surgery ; Humans ; Mouth Mucosa ; physiopathology ; surgery ; Osteogenesis, Distraction ; Osteotomy, Le Fort
4.Serum proteomic study on hypertension patients with Gan-Dan damp-heat syndrome.
Yu-guang CHU ; Jie SHI ; Yuan-hui HU
Chinese Journal of Integrated Traditional and Western Medicine 2010;30(1):37-41
OBJECTIVETo study the serum proteomics in hypertension patients with Gan-Dan damp-heat syndrome (GDDH) for tentatively find special proteins associated with the syndrome.
METHODSStudy was performed in 60 hypertensive patients and 39 healthy persons as control. In the patients enrolled, 40 were differentiated as GDDH syndrome and the other 20 as non-GDDH syndrome. Their serum proteins were captured by weak cation nano-magnetic beads, and proteomic fingerprint was made by matrix assistant laser demodulation ionizing time-of-flight mass spectrometry (MALDI-TOF-MS) through mapping with protein chip reader type PBS II-C. After all the proteomic fingerprints being analyzed by Biomarker Wizard 3.1, the special expressed proteins for GDDH syndrome were identified by Biomarker Patterns Software 5.0 to create the syndrome decision model.
RESULTSTotally, 182 difference protein peaks between patients of GDDH and healthy persons (P<0.05); and 132 difference protein peaks between patients of GDDH and non-GDDH were detected (P<0.05). A decision model consisted 5 screened out protein peaks with mass-to-charge ratio of 2761.555, 6624.362, 2487.192, 2461.610 and 2744.318 was created, which could well differentiate the GDDH syndrome, with the sensitivity of 96.55%, specificity of 90%, false positive rate of 10% and false negative rate of 3.45%. Further blind test for prospective check showed its sensitivity being 81.82%, specificity 89.66%, false positive rate 10.34% and false negative rate 18.18%.
CONCLUSIONThe differently expressed protein is the material foundation of GDDH syndrome; molecular biological decision model established on the basis of this foundation can offer a tool for making Chinese medicine syndrome differentiation more objectively and accurately.
Adolescent ; Adult ; Aged ; Blood Proteins ; analysis ; Case-Control Studies ; Female ; Humans ; Hypertension ; blood ; diagnosis ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Proteome ; analysis ; Proteomics ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; Young Adult
5.Placement of a Long Intestinal Tube in Patients with Early Postoperative Small Bowel Obstruction under Fluoroscopic Guidance.
Zhi-wei WANG ; Xiao-guang LI ; Jie PAN ; Ning YANG ; Hai-feng SHI ; Zheng-yu JIN
Chinese Medical Sciences Journal 2015;30(3):156-161
OBJECTIVETo investigate the placement of a long tube into the small intestine under fluoroscopic guidance and to evaluate its decompression effect on early postoperative small bowel obstruction (EPSBO).
METHODSFifty-four patients with EPSBO requiring decompression between April 2010 and July 2014 were enrolled in the study. Insertion of a long tube was guided by fluoroscopy. We first used the guide wire to pass the pylorus and then used the 10 Fr feeding tube as an exchangeable tube to put the superstiff wire into the duodenum. Finally the long tube could be passed over the guide wire through the pylorus into the intestine. The total procedure time, the radiation exposure time, and the incidence of complications were evaluated.
RESULTSThe long tubes passed into the jejunum on initial insertion for all patients, so the success rate of this technique was 100%. The long tube was inserted into ileum in 18 patients. The mean total procedure time was 34.4 ± 8.6 minutes, and the mean radiation exposure time 18.9 ± 6.8 minutes. A total of 47 patients (87%) experienced full recovery following long-tube decompression and without the need for surgical intervention.
CONCLUSIONSUsing the wire-exchange technique, it is easy to place a long tube into the small bowel under fluoroscopic guidance. This decompression method is safe and effective for management of EPSBO.
Adult ; Aged ; Decompression, Surgical ; methods ; Female ; Fluoroscopy ; Humans ; Intestinal Obstruction ; surgery ; Male ; Middle Aged ; Postoperative Complications ; surgery ; Retrospective Studies
7.The Microbe Cell-surface Engineering Study Progress
Jing SHI ; Yong-Guang YIN ; Guei-Lin ZHANG ; Jian-Qun YU ;
Microbiology 1992;0(05):-
Microbe cell-surface engineering , which use the microbe cell surface display technology to display foreign proteins on the microbe cell surface to produce cell-surface proteins, was developed in recent years. I t can be utilizedto develop cell-catalyst, cell-adsorbent , live vaccine, biosensor and so on, and have a wide application perspective. But in our county, the microbe cell-surface engineering is studied just now. This review explain the development of the microbe cell surface engineering, overview the study and progress of microbe cell-surface engineering, and look this technology into the future.
8.Type 1 diabetes mellitus and stroke
Hong CHANG ; Haixia GAO ; Ying CHANG ; Guang SHI ; Yu YANG ; Jianghui WANG
International Journal of Cerebrovascular Diseases 2015;23(4):286-289
Many studies have shown that the incidence of type 1 diabetes mellitus (T1DM) is increasing with an annual of 2% to 5%.As the same with type 2 diabetes mellitus,T1DM is also a risk factor for stroke.Although some T1DM studies have taken stroke as a component of the composite endpoint of cardiovascular events,a few studies have focused on the risk of stroke in patients with T1DM.Recent studies have shown that the risk of stroke in patients with T1DM is significantly higher than those without diabetes mellitus,especially in the population under the age of 50.In addition,the T1DM patients died of the risk of stroke are 3 to 4 times higher than the general population.This article reviews the relationship between T1DM and stroke.
9.Expression of Hepatocyte Growth Factor and Transforming Growth Factor-? of Renal Tissues in Children with Nephropathy
ji-yang, YU ; guang-hua, ZHU ; qing, SHI ; wei-xun, HE
Journal of Applied Clinical Pediatrics 2006;0(17):-
Objective To explore the expression and mutual relationship between transforming growth factor-?(TGF-?) and hepatocyte growth factor(HGF) in children's renal tissues,as well as the effect of the 2 indexes on the renal pathological change.Methods According to the severity of renal pathological change under light microscope,61 cases were divided into 3 groups:named control group(26 cases,clinically diagnosed as thin basement membrane nephropathy),test group Ⅰ [22 cases,clinically diagnosed as less evident focal segmental glomerulosclerosi(FSGS) nephropathy] and test group Ⅱ(13 cases,clinically diagnosed as evident FSGS nephropathy).Immunity class test(SP method:streptavidinbiotin peroxidase method) was used to detect the representation of HGF and TGF-?.Semi-quantitative analysis had been carried out in all cases.Film reading of cell was viewed by Olympus microscope,brown yellow from cytoplase as the positive signal,10 high power microscope visions were randomly selected from renal glomerali area and 10 from renal interstitium area.Medical image analysis software was used to determine the masculine area of HGF or TGF-? and image intensity;then the immunity class index was defined as masculine area ? image intensity.Results 1.HGF and TGF-? existed in all renal tissues;2.Expressions of HGF and TGF-? increased obviously along with FSGS pathology alteration(Pa
10.Isolation and purification of plasminogen activator of Yersinia pestis
Li-yuan, SHI ; Guo-lin, YU ; Li, BAI ; Guang-can, YANG ; Shan-shan, DONG
Chinese Journal of Endemiology 2009;28(4):365-368
Objective To find methods to isolate and purify plasminogen activator (Pla) from artificial culture of Yersinia pestis. Methods Ultrasonication and urea extracting combined by ammonium sulfate salting-out were tried to extract Pla. High performance liquid chromatography(HPLC) was used to purify Pla. The first step was ion exchange and the second was gel filtration, Preparative electrophoresis was used to purify Pla, too. The enzyme activity of the isolated or purificated Pla was detected. Results Both 50% - 60% saturated ammonium sulfate deposition of supernatant of plague bacilli ultrasonication and 0 - 10% saturated ammonium sulfate deposition of supernatant of plague bacilli powder soaked by urea had three bands(Mr about 31×103, 35×103 and 37×103) and lysis rings were 6.5 and 7.2 mm in diameter respectively when the enzyme activity was detected. Pla purified by HPLC was mainly composed of three bands(Mr about 31×103, 35×103 and 37×103), occupying more than 80% of total protein weight and lysis ring was 5.0 mm in diameter. Pla purified by preparative electrophoresis mainly consisted of three bands(Mr about 31×103, 35×103 and 37×103) with other proteins of low concentration nearby, no lysis ring was detected. Conclusions Pla is collected by the methods of ultrasonication and urea extracting. Priliminary purification of Pla can be achieved by HPLC and preparative electrophoresis.