1.The mechanism of NLRP3 inflammasome affecting vascular aging and the development of related drugs
Acta Pharmaceutica Sinica 2021;56(3):696-702
Nucleotide binding oligomerization domain (NOD)-like receptor protein 3, NLRP3) inflammasomes regulate the secretion of caspase-1, interleukin-18 (IL-18), IL-1
2.The regulatory role of E2F1 in prostate cancer
Ming-yi ZHANG ; Ming JI ; Xiao-guang CHEN
Acta Pharmaceutica Sinica 2021;56(3):654-660
E2F transcription factor 1 (E2F1) is a major member of the E2F transcription factor family and participates in a wide range of physiological regulatory processes, such as cell cycle, survival, apoptosis, and metabolism. It is proved that the activity of E2F1 is related to the G1/S phase regulation of the cell cycle dependent on tumor suppressor retinoblastoma protein (RB). Recent studies have shown that E2F1 is highly expressed in prostate cancer cells, manifested as an oncogene, and its expression level is closely related to the occurrence, development, and poor clinical prognosis of prostate cancer. Androgen receptor (AR) is the main driving factor for the growth and progression of prostate cancer, and the changes of AR pathway play a key role in the pathological progression of prostate cancer. This article provide a systematic and comprehensive summary on recently published articles to review the role of the E2F1 pathway in prostate cancer.
3.Treating irritable bowel syndrome by wuling capsule combined pinaverium bromide: a clinical research.
Xiao-wei WU ; Yu HOU ; Hong-zan JI ; Ming-ming LIANG ; Lian-e XU ; Fang-yu WANG
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(4):415-418
OBJECTIVETo evaluate the efficacy and safety of wuling Capsule combined with Pinaverium Bromide in treatment of irritable bowel syndrome (IBS).
METHODSSixty-four IBS patients were randomized into two groups, the treatment group and the control group, 32 in each group. Patients in the treatment group took wuling Capsule (0. 33 g/capsule, 3 times per day) and Pinaverium Bromide (50 mg/tablet, one tablet each time, 3 times per day) , while those in the control group only took Pinaverium Bromide (50 mg/tablet, one tablet each time, 3 times per day). The therapeutic course for all was 6 weeks. IBS symptom score questionnaire, IBS-Quality of Life (IBS-QOL) , Self-Rating Depression Scale (SDS) , and Self-Rating Anxiety Scale (SAS) were assessed before and after treatment. Adverse reactions were also observed.
RESULTSThe improvement of abdominal pain, stool frequency, and stool properties, as well as changing rates of integrals were significantly higher in the treatment group than in the control group (P <0. 05). The improvement of dysphoria, body image, concerns for health, and dietary restriction of IBS-QOL, as well as changing rates of integrals were significantly higher in the treatment group than in the control group (P <0. 05). The improvement of SDS and SAS, as well as changing rates of integrals were significantly higher in the treatment group than in the control group (P <0. 05). No severe adverse reaction occurred in either group.
CONCLUSIONCombination therapy of wuling Capsule and Pinaverium Bromide could improve abdominal pain and defecation, attenuate depression and anxiety of IBS patients with higher safety.
Anxiety ; Anxiety Disorders ; Biomedical Research ; Capsules ; Defecation ; Depression ; Depressive Disorder ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Irritable Bowel Syndrome ; drug therapy ; Morpholines ; therapeutic use ; Quality of Life ; Surveys and Questionnaires
4.Tendency of dyslipidemia in the early stage after renal transplantation: multicenter investigation in Beijing region
Linlin MA ; Jianhua AO ; Lulin MA ; Ming CAI ; Xuren XIAO ; Zhihao YANG ; Xingke QU ; Zhigang JI
Chinese Journal of Organ Transplantation 2010;31(5):269-272
Objective To investigate the current dyslipidemia profiles and correlation with etiological factors in early stage post-transplantation, and the impact of lipid metabolic disorder on renal function. Methods The clinical data of 1032 renal allografts from eight hospitals in Beijing between 2004 and 2008 were collected and evaluated retrospectively. Before and at the 1st, 3rd, 6th and 12th month post-transplantation, the changes in blood total cholesterol (TC), triglycerides (TG),low density lipoprotein (LDL)-cholesterol and high density lipoprotein (HDL)-cholesterol were analyzed. The difference in the blood lipid disorder at different stages stratified by time and different age group, the effects of immunosuppressive agents on blood lipid, and the impact of blood lipid disorder on the blood creatinine were studied. Results Except HDL-cholesterol, TC, LDL-cholesterol and TG levels were increased gradually at the first year, especially LDL-cholesterol and TG. The TC and LDL-choleaterol abnormalities were obviously related with age (P<0. 01 ). The effect of Tacrolimus (Tac)-based immunosuppressive regimen on the lipid metabolic disorder was less than cyclosporine (CsA). At the first year, there was no significant difference in blood creatinine between lipid-lowering treatment and non-lipid-lowering treatment (P>0. 05). For the recipients not subject to lipid-lowering treatment and their TG level higher than the normal at the first month after operation, the creatinine level at the first year was significantly higher than in those with normal TG level (P< 0. 05). Conclusion The lipid metabolic disorder following renal transplantation is a common complication after the first transplant year, and was related with age and immunosuppressive agent regimen. Tac-based immunosuppressive regimen has little effects on the blood lipid metabolism.
5.Apoptosis and proliferation of peripheral blood lymphocytes from primary nephrotic syndrome children and effects of dexamethasone on them
xiao-ming, LIU ; si-guang, LU ; ling-yu, XUE ; ping, JI
Journal of Applied Clinical Pediatrics 2004;0(09):-
Objective To explore the apoptosis and proliferation of peripheral blood lymphocytes(PBLs) from primary nephrotic syndrome(PNS) and effects of dexamethasone(Dex) on them.Methods Minimal change NS(MCNS), non-minimal change NS(NMCNS) and healthy children were involved in this study. PBLs were cultured in vitro with Dex or PHA+Dex or without PHA and Dex. Apoptosis of PBLs was measured by propidium iodide(PI) staining; The effects of Dex at different concentrons on PBLs′proliferation were investigated by 3H-TdR incorporation.Results The apoptotic rate of vacuity group in MCNS was lower compared with NMCNS and healthy controls(P
6.Experimental observation on the yellow mice(Citellus undulatus) infected with Yersinia pestis over the winter
Yu-ming, FENG ; Xiao-xue, ZHANG ; Ji-chun, LIN ; Cheng, WANG ; Gang, LEI ; Cun-ning, QIAN
Chinese Journal of Endemiology 2009;28(2):168-170
Objective To analysis and determine the possibility of the Citellus undulatus infected with Yersinia pestis surviving the winter in an experimental study, and to provide scientific experimental basis for the study on the mechanism of Yersinia pestis preservation. Method In 2006,09 to 2007,04 and 2007,09 to 2008,04 in Xinjiang Wusu-Gurtu natural foci of plague, under natural conditions, the over the winter process of Citellus undulatus carrying the plague bacteria was simulated, and 178 Citellus undulatus were infected with Yersinia pestis (1×107 Bacteria/mouse) using artificial injection method. One hundred seventy-eight Citellus undulatus infected with Yersinia pestis were kept into a construction of the black (1-5 ℃) basement (2 meters under the ground) in the plague focus. In doing so, these Citellus undulatuses almost simultaneously stepped into hibernation. After waking up from hibernation in following year in April, the survived mice carrying the plague bacteria were observed. Results Sixty-eight mice survived among the 178 infected with Yersinia pestis after 6 months of hibernation (through October to the following year in April), and the remaining 110 were all dead without pulling through the hibernation period. The survival rate was 38.2% (68/178). The organ culture of Yersinia pestis of the 110 dead mice(Citellus undnlatus) were tested, 67 were negative(-), 43 positive(+), with a positive rate of 39.1%(43/110). Among the rats with positive plague bacteria, the congestive pulmonary edema and the pathological changes of the hemorrhagic inflammation of the heart, liver, spleen, kidney and injection site could be seen clearly; the plague-free mice were not found to have any pathological changes. The survived 68 mice over the winter were autopsied and observed after being fed up for 20 days. No any pathological changes were found among these mice, and culturing of Yersinia pestis of the heart, liver, spleen, lungs and the tissue of injection site of these mice were all negative (-). Conclusions Citellus undulatus can carry Yersinia pestis during hibernation, but some fail to carry the bacteria through the entire process of hibernation persistently. Yersinia pestis was negative in the survived mice at the end of hibernation. The results showed that Citellus undulatus can not carry Yersinia pestis over the winter.
7.Inhibitory effect of LZJ541, a novel small molecule inhibitor of STAT3, on the proliferation of hepatocellular carcinoma cells
Yi-chen LIU ; Ming JI ; Ting-ting DU ; Wen-qiang LIU ; Li LI ; Xiao-guang CHEN
Acta Pharmaceutica Sinica 2022;57(5):1396-1401
Signal transducer and activator of transcription 3 (STAT3) is an important regulatory factor of cell proliferation and metastasis, involved in the occurrence and development of a variety of malignant tumors, and it is one of the hot spots in the research of targeted anti-tumor drugs. Our group screened a novel benzobis (imidazole) structure small molecule compound LZJ541 through the screening model of Janus kinase (JAK)/STAT3 pathway inhibitors, which has definite STAT3 inhibitory activity. We examined the effect of LZJ541 on the proliferation of HepG2 and PC-3 cells by MTT assay
8.Quality control of Maca (Lepidium meyenii).
Ji-cheng SHU ; Hang-qing CUI ; Ying-zheng HUANG ; Xiao-ying HUANG ; Ming YANG
China Journal of Chinese Materia Medica 2015;40(23):4536-4540
To control the quality of Maca, the quality standard was established in this study. According to the methods recorded in the Appendix of Chinese Pharmacopoeia (2010 Edition), the water, extract, total ash, acid insoluble substance, and heavy metals inspections in Lepidium meyenii were carried out. N-benzyl-9Z, 12Z-octadecadienamide in L. meyenii was identified by TLC, and it was determined by HPLC. The results showed that the N-benzyl-9Z, 12Z-octadecadienamide identification of TLC was a strong mark and specificity. In content determination experiment, the linearity of N-benzyl-9Z, 12Z-octadecadienamide was in the range of 0.01-2 microg (r = 0.9998), and the average recovery (n=9) was 99.27% (RSD 2.0%). The methods were simple, accurate, with good reproducibility. It is suitable for quality control L. meyenii.
Chromatography, High Pressure Liquid
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methods
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Chromatography, Thin Layer
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methods
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Lepidium
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chemistry
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Plant Extracts
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chemistry
9.Design, synthesis and biological evaluation of novel para-substituted 1-benzyl-quinazoline-2, 4 (1H, 3H)-diones as human PARP-1 inhibitors.
Hai-Ping YAO ; Zhi-Xiang ZHU ; Ming JI ; Xiao-Guang CHEN ; Bai-Ling XU
Acta Pharmaceutica Sinica 2014;49(4):497-503
Poly(ADP-ribose) polymerase-1 (PARP-1) has emerged as a promising anticancer drug target due to its key role in the DNA repair process. It can polymerize ADP-ribose units on its substrate proteins which are involved in the regulation of DNA repair. In this work, a novel series of para-substituted 1-benzyl-quinazoline-2, 4 (1H, 3H)-diones was designed and synthesized, and the inhibitory activities against PARP-1 of compounds 7a-7e, 8a-8f, 9a-9c and 10a-10c were evaluated. Of all the tested compounds, nine compounds displayed inhibitory activities with IC50 values ranging from 4.6 to 39.2 micromol x L(-1). In order to predict the binding modes of the potent molecules, molecular docking was performed using CDOCKER algorithm, and that will facilitate to further develop more potent PARP-1 inhibitors with a quinazolinedione scaffold.
Antineoplastic Agents
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chemical synthesis
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chemistry
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pharmacology
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Drug Design
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Enzyme Inhibitors
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chemical synthesis
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chemistry
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pharmacology
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Molecular Docking Simulation
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Molecular Structure
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Poly (ADP-Ribose) Polymerase-1
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Poly(ADP-ribose) Polymerases
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Quinazolinones
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chemical synthesis
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chemistry
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pharmacology
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Structure-Activity Relationship