1.Effect of MDG-1, a polysaccharide from Ophiopogon japonicas, on diversity of lactobacillus in diet-induced obese mice.
Lin-lin SHI ; Yuan WANG ; Yi FENG
China Journal of Chinese Materia Medica 2015;40(4):716-721
For understanding the effect of MDG-1, a water-soluble β-D-fructan polysaccharide from Ophiopogon japonicas, on intestinal microecological balance, especially on the changes of lactobacillus, sixty 8-week-old male C57BL/6J mice were given a high-fat diet for six weeks and were also gavaged with saline once a day simultaneously. Then the mice which is below 30 grams or dropped more than 10% through lavage were eliminated and the rest were randomly divided into four groups: diet-induced obese (DIO) model group (n = 12, gavaged with saline), low-dose MDG-1 group (n = 12, gavaged with MDG-1, 75 mg · kg(-1)) , medial-dose MDG- 1 group (n = 12, gavaged with 150 mg · kg(-1)), and high-dose MDG-1 group (n = 12, gavaged with 300 mg · kg(-1)) according to the weight and blood glucose; the model group and MDG-1 group were placed on a high-fat diet while the normal control group (n = 12, gavaged with saline) were kept on a low-fat diet through the experiment. After 12-weeks of treatment, feces samples were collected and cultured for intestinal microecological balance analysis. Then the intestinal probiotics were cultured through traditional methods combined with modified gradient gel electrophoresis (DGGE) method. The changes of lactobacillus in each treatment group were also detected by a statistical analysis of the total number of the intestinal flora. We have established the phylogenetic tree by 16S rDNA sequencing and use some molecular identification methods such as PCR-DGGE to analyse the changes of the dominant bacteria floras, and also get the pure culture. In conclusion, different concentrations of MDG-1 can increase the number of the intestinal probiotics, especially Taiwan lactobacillus and Lactobacillus murinus, and improve their diversity and promote proliferation in a dose-dependent way.
Animals
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Biodiversity
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Diet, High-Fat
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adverse effects
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Dietary Carbohydrates
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administration & dosage
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analysis
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Humans
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Intestines
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drug effects
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metabolism
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microbiology
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Lactobacillus
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classification
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drug effects
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genetics
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growth & development
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Male
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Mice
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Mice, Inbred C57BL
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Mice, Obese
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Molecular Structure
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Obesity
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drug therapy
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metabolism
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microbiology
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Ophiopogon
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chemistry
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Phylogeny
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Plant Extracts
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administration & dosage
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chemistry
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Polysaccharides
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administration & dosage
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chemistry
3.Effects of PPAR-gamma agonist and MMP-2 on formation of atherosclerosis plaque in rabbits.
Feng LUO ; Zhao-hui WANG ; Lin-lin DU ; Jue WANG
Chinese Journal of Pathology 2007;36(8):556-557
Animals
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Aorta
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metabolism
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pathology
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Atherosclerosis
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etiology
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metabolism
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pathology
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Cholesterol, Dietary
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Male
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Matrix Metalloproteinase 2
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metabolism
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PPAR gamma
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agonists
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Rabbits
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Random Allocation
5.Effects of strain force on the expression of osteoclast differentiation factor and osteoclasto-genesis inhibitory factor in human periodontal ligament cells
Feng WANG ; Zhu LIN ; Yongming LI
Journal of Practical Stomatology 2001;0(01):-
Objective:To investigate the effects of strain force on t he expression of osteoclast differentiation factor(ODF) and osteoclasto-genesis i nhibitory factor(OCIF) in human periodontal ligament cells (HPDLCs). Met hods: HPDLCs were subjected to cyclic strain force for 0, 6, 12 and 24 h ours, mRNA expression of ODF and OCIF were determined by RT-PCR. Result s:After treatment of the cells for 0,6,12 and 24 hours the ODF/?-actio n values were 0.7280?0.0261,0.6831?0.0411,0.5801?0.2230 and 0.4572?0.0373( P0.05) respectively.Conclusion:Strain force may decrease the expression of ODF and increase the expression of OCIF.
6.Tachycardia-induced cardiomyopathy in children
Xiaohua HAN ; Feng WANG ; Lin WU
Chinese Journal of Applied Clinical Pediatrics 2017;32(1):72-74
Tachycardia-induced cardiomyopathy (TIC) is defined as a kind of cardiomyopathy with cardiac dilatation and dysfunction secondary to sustained or recurrent tachyarrhythmia.Myocardial dysfunction can wholly or partially recover after control of the responsible tachyarrhythmia.TIC,a reversible acquired cardiomyopathy with generally benign prognosis,can occur at any age;however,it often proves to be unrecognized by most of pediatricians in clinical practices.Now,the clinical criteria,pathogenesis,characteristics,therapy and prognosis of pediatric TIC were summarized,so as to provide a clinical basis for early recognition and prompt therapy.
7.Ender nail fixation for pediatric femoral shaft fractures
Lin FENG ; Xiaodong WANG ; Xiqing ZHANG
Chinese Journal of Minimally Invasive Surgery 2001;0(05):-
Objective To investigate the effectiveness of Ender nail fixation in the management of pediatric femoral shaft fractures. Methods A total of 24 children with femoral shaft fracture underwent small incision Ender nail internal fixation followed by 4 weeks of monolateral hip spica-cast immobilization. Results Follow-up observations for 6~24 months revealed no non-union or delayed union. The affected limbs were found within 1 cm shorter or longer than the contralateral in 4 cases. None became lame, and the functions of lower limbs were completely recovered. Conclusions So far as indications and contra-indications of Ender nail fixation are strictly followed, this treatment for femoral shaft fractures in children of age 5~10 years gives characters of small incision, anatomic reduction, unimpaired periosteum, short hospital stay, and quick functional recovery.
8.Study on Artemisinin Transdermal Delivery Systems
Naijie WANG ; Lin QIU ; Feng DU
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(08):-
Azone. PG combined with azone showed a higher synergic effect of enhancing effectiveness. Conclusion National Starch polyacrylate pressure-sensitive adhesive was the most effective pressure-sensitive adhesive matrix, PVP-K30 was the most effective crystallization inhibitor, PG combined with azone were the most effective penetration enhancers.
9.Effect of Permeation Enhancers on the Percutaneous Absorption of Artesunate in Vitro
Lin QIU ; Naijie WANG ; Feng DU
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(10):-
IPA.Skin permeation was significantly enhanced by increasing the loading concentration of OA or NMP,larger IPA amount(8%) or PG amount(20%) could inhibit the permeation of artesunate.Conclusion Oleic acid was found to be the most efficient enhancer for artesunate,10% is the most effective concentration.
10.Proteomics and organ transplantation
Guangkuo WANG ; Feng LIN ; Xueshan HUANG
Chinese Journal of Tissue Engineering Research 2007;0(18):-
With the development of mass spectrometer,protein and peptide separation technology,and data analysis tools,the study on protein expression profiling of various tissues,organs or cells has been developed rapidly.The most basic purpose of proteomics is qualitative and quantitative identification of the whole protein in a cell or tissue.Therefore,how to make full use of mass spectrometry data has an important significance in proteome.Recently years,proteomics has begun to be applied in allograft rejection and discovery of rejection related biomarkers in organ transplantation.Through the extensive application of the technology in organ transplantation,graft rejection can be earlier detection and treatment.Therefore,the proteomics research have potential application prospects in the diagnosis of the organ transplant rejection.