1.Experimental research on bletilla carrying exogenous basic fibroblast growth factor that promotes wound healing
Xiao WANG ; Jing ZHAO ; ying Meng DU ; juan Hai SUN ; wei Xiang GAO ; Ran WU
Chinese Journal of Tissue Engineering Research 2017;21(34):5481-5486
BACKGROUND: Bletilla bletilla striata gelatin (BSG) is found to remarkably promote the growth of granulation tissue and capillary vessels, as well as the expression of vascular endothelial growth factor in the wound tissue in rabbits with full-thickness skin defect of the back. Basic fibroblast growth factor (bFGF) remarkably promotes the growth of collagen fibers and the growth and dilation of capillary vessels in the wound tissue in rabbits with full-thickness skin defect of the back. However, BSG is easy to decompose under normal temperature, affecting fulfillment of its functions. OBJECTIVE: To explore the effect of BSG carrying exogenous bFGF on wound healing. METHODS: Forty healthy rabbits were used to make animal models of full-thickness back skin defects, and then randomly divided into four groups, namely, group BSG+bFGF, group bFGF, group BSG and group saline. Rats in each group were subjected to the corresponding treatment once a day until the wound was completely healed. Wound healing time was recorded. Wound healing rate was detected at 3 and 10 days after modeling. Real-time PCR and western blot assay were used to detect the expression of vascular endothelial growth factor, α-smooth muscle actin and type I collagen at mRNA and protein levels at 7 days after modeling. RESULTS AND CONCLUSION: The wound healing time in the BSG+bFGF group was shortened by 4.5, 3.0 and 2.8 days as compared with the normal saline group, BSG group and bFGF group, respectively (P < 0.05). The wound healing rates in the BSG+bFGF group were also higher than those in the other groups at 3 and 10 days after modeling (P< 0.05). Findings from both PCR and western blot assay showed higher expression of vascular endothelial growth factor and α-smooth muscle actin and lower expression of type I collagen in the BSG+bFGF group than the other three groups at 7 days after modeling (P < 0.05). To conclude, BSG carrying exogenous bFGF can promote wound healing, and the underlying mechanism may be to promote vascular endothelial growth factor and inhibit type I collagen.
2.The correlation analysis and predictive value of peak expiratory flow on pulmonary infection after esophageal carcinoma operation
Wei DONG ; Ran WEI ; Zhinan WU ; Jiajun DU ; Long MENG
Chinese Journal of Thoracic and Cardiovascular Surgery 2017;33(9):557-560
Objective To investigate the correlation between perioperative risk factors including pulmonary fuction indexs and the occurance of postoperative pneumonia in esophageal carcinoma patients,and the prediction efficiency of Peak Expiratory Flow (PEF).Methods Two groups of consecutive esophageal carcinoma patients were included,321 patients in group 1 were devided into postoperative pneumonia group (n =30) and control group (n =291) to screen any relavent risk factom on postoperative pneumonia;group 2 (n =50) was to verify the accurancy and sensitivity of the predictive index.Results he results from group 1 showed that preoperative history of diabetes,previous surgery history,lung function index FEV1 and PEF in the presence of significant differences between the postoperative pneumonia group and the control group,after FDR correction FEV1 and PEF still have statistical significance.Multivariate logistic analysis showed that PEF was an independent prognostic factor of lung infection after esophageal cancer surgery.We build a predictive model with PEF as a variable index of lung infection after esophageal cancer surgery in group 2,the results showed that PEF as a predictor of pulmonary infection has good specificity and sensitivity.Conclusion PEF has a significant correlation with postoperative pulmonary infection in patients with esophageal cancer,and PEF can be used as an effective predictor of postoperative pulmonary infection.
3.Breeding and microbiological quality control of germ-free pigs
Jing SUN ; Lei DU ; chun Yu DING ; Meng WU ; Lin LUO ; quan Song YANG ; Yong HUANG ; ran Hao CAO ; Hao ZHONG ; Liang-peng ZUO-HUA ; GE LIU
Acta Laboratorium Animalis Scientia Sinica 2017;25(6):699-702
The industry of germ-free animals has been a hot spot in research along with the rapid development of studies on the relationship between microbiota and host diseases. Because it is pathogen?free, and the high degree of simi?larity in anatomy, physiology, pathogenesis to humans, germ?free pig is considered a clinical relevant model to be widely used in life science research. Based on the current state of research of germ?free pig cultivation at home and abroad and the experimental studies carried out in our laboratory as well, this article gives a simple discussion on germ?free technique of domestic pigs.
4.GAO Shu-zhong's clinical experience in "seeking yin from yang needling method" based on "qi street" and "four seas" theories.
Xin-Ran DU ; Guang-Hui YIN ; Xue-Meng SHI ; Yang SHU ; Xin-Ru ZHANG ; Tai-Ran ZHAI ; Jing-Ru WANG ; Xiao SUN ; Yu-Xia MA
Chinese Acupuncture & Moxibustion 2022;42(6):673-675
The paper introduces professor GAO Shu-zhong's understanding on "seeking yin from yang needling method" and its clinical application on the basis of "qi street" and "four seas" theories. Through professor GAO's clinical practice for years, he integrates and extendes the theories of "seeking yin from yang", "qi street" and "four seas" in Huangdi Neijing (The Yellow Emperor's Inner Classic). In this specific acupuncture method, in reference with the theories of "qi street" and "four seas", acupuncture is exerted on yang part of body, e.g. the back and lumber region to treat the diseases of yin parts, e.g. the chest and abdomen, which is differentiated as yin-yang imbalance in pathogenesis. In order to fully explain the clinical curative effect of "seeking yin from yang needling method", the common diseases in clinic, e.g. the disorders of heart, spleen and stomach systems, as well as the gynecology are taken as examples in the paper.
Acupuncture
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Acupuncture Therapy/history*
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Humans
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Male
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Qi
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Vascular Surgical Procedures
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Yin-Yang
5.Chemical constituents from Artocarpus incisus and their inhibitory effects on proliferation of synoviocytes in vitro.
Yu-Tong XIE ; Shu-Hong XIONG ; Yuan BIAN ; Yu WANG ; Ruo-Qing GUAN ; Xin-Yuan SUO ; Meng-Ran DU ; Yan-Ping LIU ; Yan-Hui FU
China Journal of Chinese Materia Medica 2022;47(17):4665-4673
The chemical constituents from the branches and leaves of Artocarpus incisus were isolated and purified via silica gel, ODS, and Sephadex LH-20 column chromatography as well as preparative HPLC. The chemical structures of all isolated compounds were identified in the light of their physicochemical properties, spectroscopic analyses, and comparisons of their physicochemical and spectroscopic data with the reported data in literature. As a result, 20 compounds were isolated and characterized from the 90% ethanol extract of the branches and leaves of A. incisus, which were identified as tephrosin(1), 6-hydroxy-6 a, 12 a-dehydrodeguelin(2), sarcolobin(3), lupiwighteone(4), 12-deoxo-12α-methoxyelliptone(5), 6 aα,12 aα-12 a-hydroxyelliptone(6), homopterocarpin(7), 3-hydroxy-8,9-dimethoxypterocarpan(8), pterocarpin(9), maackiain(10), medicarpin(11), calycosin(12), genistein(13), formononetin(14), 5-hydroxy-4',7-dimethoxy isoflavone(15), liquiritigenin(16), 4(15)-eudesmene-1β,7α-diol(17), ent-4(15)-eudesmene-1β,6α-diol(18), 1α-hydroxyisodauc-4-en-15-al(19), and guaianediol(20). Except compounds 13 and 16, all other compounds were isolated from the Artocarpus plants for the first time. Additionally, using MTS assay, compounds 1-20 were eva-luated for their anti-rheumatoid arthritis activities by measuring their anti-proliferative effects on synoviocytes in vitro. As a consequence, compounds 1-16 showed notable anti-rheumatoid arthritis activities, which displayed inhibitory effects on the proliferation of MH7 A synovial fibroblast cells, with the IC_(50) values in range of(9.86±0.09)-(218.07±1.96) μmol·L~(-1).
Arthritis
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Artocarpus
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Cell Proliferation
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Ethanol
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Genistein
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Plant Extracts/pharmacology*
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Silica Gel
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Synoviocytes
6.Chemical constituents from fruits of Morinda citrifolia and their inhibitory effects on proliferation of synoviocytes in vitro.
Zhang-Yang SHEN ; Ruo-Qing GUAN ; Meng-Ran DU ; Yuan BIAN ; Yu WANG ; Xin-Yuan SUO ; Shu-Hong XIONG ; Yan-Ping LIU ; Yan-Hui FU
China Journal of Chinese Materia Medica 2023;48(1):105-113
The chemical constituents from the fruits of Morinda citrifolia were systematically explored by chromatographic fractionation methods including silica gel, octadecylsilyl(ODS) gel, Sephadex LH-20 gel, and preparative high performance liquid chromatography(pre-HPLC). The chemical structures of all isolated compounds were identified on the basis of their physicochemical properties, spectroscopic analyses, as well as the comparisons of their physicochemical and spectroscopic data with the reported data in literature. As a result, 22 isolated compounds from the 90% ethanol extract of the fruits of M. citrifolia were identified, which were moricitritone(1), 2'-deoxythymidine(2), cyclo-(L-Pro-L-Tyr)(3), methyl-5-hydroxy-2-pyridinecarboxylate(4), methyl pyroglutamate(5), bisbenzopyran(6), epipinoresinol(7), 3, 3'-bisdemethyl pinoresinol(8), 3, 3'-bisdemethyltanegool(9), trimesic acid(10), crypticin B(11), kojic acid(12), vanillic acid(13), protocatechoic acid(14), 5-hydroxymethyl furfural(15), blumenol A(16), 1-O-(9Z, 12Z-octadecadienoyl) glycerol(17), mucic acid dimethylester(18), methyl 2-O-β-D-glucopyranosylbenzoate(19), 2-phenylethyl-O-β-D-glucoside(20), scopoletin(21), and quercetin(22). Among them, compound 1 was a new pyrone derivative, compounds 2, 4-7, 10-12, and 17 were isolated from the plants belonging to Morinda genus for the first time, and compound 18 was obtained from M. citrifolia for the first time. Moreover, on the basis of testing the activities of all isolated compounds on inhibiting the proliferation of synovial fibroblasts in vitro by MTS assay, the anti-rheumatoid arthritis activities of all isolated compounds were initially evaluated. The results showed that compounds 1-6, 9, 19, and 20 exhibited remarkable anti-rheumatoid arthritis activities, which displayed the inhibitory effects on the proliferation of MH7A synovial fibroblast cells with the IC_(50) values in the range of(3.69±0.08) to(168.96±0.98) μmol·L~(-1).
Fruit/chemistry*
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Morinda/chemistry*
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Synoviocytes
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Cell Proliferation
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Arthritis