2.A novel citrinin derivative from the marine-source fungus Penicillium citrinum.
Min NI ; Weiling LIN ; Peng YANG ; Shuichun MAO
Acta Pharmaceutica Sinica 2015;50(2):203-6
A novel citrinin derivative, penicitrinol L (1), along with two known analogues, penidicitrinin B (2) and pennicitrinone A (3) were isolated from the marine-source fungus Penicillium citrinum. The structure of the new compound was elucidated by spectroscopic methods including one and two-dimensional NMR as well as high-resolution mass spectrometric analysis. Furthermore, compound 1 showed modest cytotoxic activity against HL-60 cell line and compound 3 showed weak cytotoxic activity against A375 cell line.
3.Clinical significance of the detection of the Human Papilloma Virus(HPV) DNA typing in therapy of cervical diseases
Xiuhong PENG ; Lingzhi MAO ; Xiping LUO ; Qundi DENG ; Xiaohong LIN
Chinese Journal of Primary Medicine and Pharmacy 2009;16(5):775-776
Objective To evaluate the clinical significance of the detection of the Human Papilloma Virus (HPV) DNA typing in therapy of cervical diseases. Methods 780 cases have been studied. These cases which showed HPV-DNA positive and were diagnosed by biopsy as cervical cancer or cervical intraepithelial neoplasia( CIN Ⅰ-Ⅲ) were treated by operation or physical therapy. And 6 months and 12 months after the treatment,TCT and HPV DNA test were carried out. Results The prevalence of HPV-DNA types among the 780 cases descended from HPV 16 to 52,58,18,33 and 31. Detection rates of HPV-52 and 58 were highest among the patients with CIN Ⅰ. In patients with CIN Ⅱ,CIN Ⅲ,carcinoma in situ and invasive carcinoma,the positive rate of HPV-16 was obviously higher than other genotypes,and the difference was significant (P<0. 01 ). 520 cases were followed-up after treatment,we found that HPV-DNA subsided within 3 months to 1 year in 432 cases. 88 cases still showed the HPV-DNA positive, among this group 48 cases were cytology diagnosed as normal or inflammation,but 14 cases were ASC-US,22 cases were LSIL and 4 cases were HSIL. Cytology abnormal cases were mere often detected in patients with persistent HPV-positive than in patients with HPV-negative. Conclusion Referring patients with cervical diseases the common HPV genotypes are 16,52,58,18,33 and 31. Especially HPV-16 are closely related with cervical cancer and high-level cervical intraepithelial neoplasis. HPV-DNA turn negative in most patients in 12 months after treatment. Persistent infection of HPV-DNA is related with the pathological changes persist.
4.A novel citrinin derivative from the marine-source fungus Penicillium citrinum.
Min NI ; Wei-Ling LIN ; Peng YANG ; Shui-Chun MAO
Acta Pharmaceutica Sinica 2015;50(2):203-206
A novel citrinin derivative, penicitrinol L (1), along with two known analogues, penidicitrinin B (2) and pennicitrinone A (3) were isolated from the marine-source fungus Penicillium citrinum. The structure of the new compound was elucidated by spectroscopic methods including one and two-dimensional NMR as well as high-resolution mass spectrometric analysis. Furthermore, compound 1 showed modest cytotoxic activity against HL-60 cell line and compound 3 showed weak cytotoxic activity against A375 cell line.
Antineoplastic Agents
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chemistry
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isolation & purification
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Citrinin
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analogs & derivatives
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chemistry
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isolation & purification
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HL-60 Cells
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Humans
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Magnetic Resonance Spectroscopy
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Penicillium
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chemistry
5.Protective effect of chlorogenic acid on beta-amyloid protein 25-35-induced PC12 cell apoptosis
Mao LIN ; Min WANG ; Fang LIU ; Xiaojin LUO ; Shiqin GAO ; Jibo WANG ; Hao PENG ; Chunmei WANG
The Journal of Practical Medicine 2017;33(12):1913-1916
Objective To study the protective effect of chlorogenic acid(CGA)on the apoptosis of PC12 cells induced byβ-amyloid protein23-35(Aβ25-35)and its mechanism. Methods The cells model of death was estab-lished by Aβ25-35 (20 μmol/L)-induced PC12 cells. The cells were interfered with 5 different concentrations of CGA. CCK-8 assay was used to detect cells viability to determine the 3 concentrations of CGA in future experi-ments. The cells were divided randomly into control group ,model group and interference groups with 3 different concentrations of CGA. Cells apoptosis rates were detected by flow cytometry;colorimetry method was used to detect MDA,SOD and GSH-Px. The mitochondrial membrane potential(MMP)was detected by fluorescent staining and the expression of caspase-3 by western blot. Results Compared with model group,the cells viability of CGA groups were increased but the apoptosis rates were reduced;the activity of SOD and GSH-Px were increased but the level of MDA,MMP and caspase-3 were decreased(P<0.05). Conclusions CGA has a protective effect on Aβ25-35-induced PC12 cells apoptosis and it may be related to the improvement of cellular antioxidation capacity and mitochondrial damage.
6.Effects of hepatitis B virus on liver function, liver fibrosis and liver pathological staging at different ALT stages
Peng GAO ; Junfeng LI ; Wei ZHOU ; Yanlin YANG ; Xiaorong MAO ; Lin CHEN ; Wei YUE ; Liting ZHANG
Journal of Xi'an Jiaotong University(Medical Sciences) 2017;38(4):564-568
Objective To evaluate the effects of hepatitis B virus on liver function,liver fibrosis,and liver pathological staging at different immune stages.Methods We made a retrospective analysis of 657 patients with chronic hepatitis B diagnosed in the First Hospital of Lanzhou University.Their liver function parameters,liver fibrosis parameters,and hepatitis B virus load were measured by automatic biochemical analyzer,automatic gammaradiation immunity analyzer,and quantitative PCR analyzer,respectively.Effects of hepatitis B virus on liver function,liver fibrosis in different immune stages were analyzed by variance analysis.Effects of hepatitis B virus on liver pathological staging at different immune stages were analyzed by linear trend chi square test analysis.Results In ALT normal chronic hepatitis B patients group,viral load had mild effects on liver function and liver fibrosis parameters.However,in ALT abnormal chronic hepatitis B patients group,viral load had a significant effect on liver function and liver fibrosis parameters,and the effect was most obvious in ALT>double upper limit of normal group.The specific manifestation was that with viral load increasing,liver function parameters including ALT,AST,TBiL,DBiL,and IBiL increased,while TP and ALB decreased.Liver fibrosis parameters HA,LN,PcⅢ,and CIV all increased (P<0.05).In ALT normal chronic hepatitis B patients group,viral load had no relationship with liver pathological staging.However,in ALT abnormal chronic hepatitis B patients group,especially ALT≥double upper limit of normal group,viral load was significantly related to liver pathological staging.Conclusion The effects of hepatitis B virus on patients' liver function at different immune stages were different,thus providing evidence-based medicine support for clinical antiviral treatment.
7.Morphologic analysis and flap design on the perforators of anterolateral thigh
Peng ZHOU ; Xin YANG ; Xu DONG ; XIANG-DANG ; Mao-Lin TANG ;
Chinese Journal of Microsurgery 2000;0(03):-
Objective To investigate a new method of improving design of the skin flap pedicled with descending hranch of lateral femoral circumflex artery,in order to increase the accuracy of preoperative Doppler location.Methods Six fresh cadavers underwent a whole body,intra-arterial injection of a lead ox- ide and gelatine preparation.Observe the perforators of anterolateral thigh by dissection,measured their diam- eter;course,branches and location for there were showed up by angiography and photography.A specific pro- gram,3D-doctor,was used for the detection of the regions of interest in angisome and its 3D-reconstructive.In addition to the average area supplied by a single perforator within that territory was calculated from digital an- giograms using Scion Image.Results There were 16 perforators that the diameter≥0.5 ram,20%were septocutaneous,80%were musculocutaneous.Their average external diameter was 0.8 ram.The average ped- icle length from the deep fascia was(3.15?1.43)ram;the perforators from descending branch of lateral cir- cumflex femoral artery walk length average about 2.63 cm in superficial fascia.The area of each perforator supplied blood was average 45.61 cm~2.Conclusion Modified lead oxid-gelatine technique provides high quality angiograms for the study of cutaneous artery and perforator falp.Based on our data,the maximum di- mension of the anterolateral thigh perforator flap can be 30 cm?20 cm in with only a single dominant perfora- tor.The perforator flaps deviced by perforators from the anterolateral thigh are transplanted to the lower limbs and the other part of the body.
8.The effects of interleukin-18 on M cells of intestinal mucosa in murine acute pancreatitis
Lin FANG ; Hongbo MENG ; Shaoyi LU ; Yukan MAO ; Lijun ZHENG ; Mingping QIAN ; Shangjin PENG ; Linxiang SHI ; Jun ZHANG
Chinese Journal of General Surgery 2009;24(8):651-654
Objective To investigate the effects of interleukin-18 ( IL-18 ) on M cells of intestinal mucosa in acute pancreatitis (AP) in rats. Methods Seventy SD rats were divided into seven groups: AP 6 hour group, 12 hour group, 24 hour group, IL-18 6 hour group, 12 hour group, 24 hour group, and control group at random. The models of AP were established. Serum, pancreatic tissue, and ileal mucosa were harvested. Serum amylase, glutamate pyruvate transaminse, total bilirubin, endotoxin, IL-27, and TNF-α were detected. Pathologic changes of pancreatic tissue and ileal mucosa were observed. The protein with reverse transcription-polymease chain reaction (RT-PCR). Results The level of serum TNF-α increased obviously in IL-18 6 hour group, 12 hour group, and AP group. The level of serum IL-27 increased in IL-18 6 hour group and AP group and back to normal in IL-18 24 hour group. The in IL-18 group than AP group (P < 0. 05 ). Conclusions IL-18 may affect M cells function and play important roles in intestinal barrier in acute pancreatitis.
9.Dynamic changes of cardiac structure and function in mice with abdominal aortic constriction.
Mao-Lin ZANG ; Meng-di YU ; Zhong-Hua CHEN ; Meng-Qi HUANG ; Peng LUO ; Hong-Kun FAN ; Chun YANG
Chinese Journal of Applied Physiology 2021;37(5):479-482
Animals
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Cardiomegaly
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Constriction
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Heart
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Mice
10.Xiongshao capsule promotes angiogenesis of HUVEC via enhancing cell proliferation and up-regulating the expression of bFGF and VEGF.
Jiu-Mao LIN ; Jin-Yan ZHAO ; Qun-Chuan ZHUANG ; Zhen-Feng HONG ; Jun PENG
Chinese journal of integrative medicine 2011;17(11):840-846
OBJECTIVETo evaluate the angiogenic effect of the Xiongshao capsule (XSC) in human umbilical vein endothelial cells (HUVEC), and to investigate the possible molecular mechanisms mediating its biological effect.
METHODSSerum pharmacology was applied in this study, in which different doses of XSC were administrated to rats orally and then XSC-containing serum (XSC-S) was collected for the following in vitro experiments. The viability of HUVEC was determined by the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Cell density was observed via phase-contrast microscopy. Fluorescence-activated cell sorting analysis with propidium iodide staining was performed to determine cell cycle phase. Cell migration was determined by wound-healing method. Capillary tube formation by HUVEC was examined using ECMatrix gel-based assay. Vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) expression levels were measured by reverse transcription polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbant assay (ELISA) analyses.
RESULTSXSC-S dose-dependently stimulated proliferation of HUVEC by promoting the cell cycle G1 to S progression. In addition, XSC-S treatment dramatically increased the migration and capillary tube formation of HUVEC in a dose-dependent manner. Moreover, XSC-S enhanced the expression of VEGF and bFGF at both mRNA and protein levels.
CONCLUSIONXSC can promote several features of angiogenesis in endothelial cells through up-regulating the expression of bFGF and VEGF, suggesting that XSC may be a potential novel therapeutic agent for the treatment of ischemic heart diseases.
Animals ; Capsules ; Cell Movement ; drug effects ; Cell Proliferation ; drug effects ; Cell Survival ; drug effects ; Collagen ; pharmacology ; Drug Combinations ; Drugs, Chinese Herbal ; pharmacology ; Fibroblast Growth Factor 2 ; genetics ; metabolism ; Human Umbilical Vein Endothelial Cells ; cytology ; drug effects ; metabolism ; Humans ; Laminin ; pharmacology ; Male ; Neovascularization, Physiologic ; drug effects ; genetics ; Proteoglycans ; pharmacology ; Rats ; Rats, Sprague-Dawley ; S Phase ; drug effects ; Up-Regulation ; drug effects ; Vascular Endothelial Growth Factor A ; genetics ; metabolism