1.Recent progress in research on human neutrophil peptides
Guohua ZHU ; Ming QI ; Yufeng HUANG
Journal of Medical Postgraduates 2003;0(12):-
Human neutrophils defensins, e.g., human neutrophils peptides (HNP), had been found in polymorphonuclear neutrophil and shown broad antimicrobial activity, cytotoxicity and chemotaxis as an important family of human innate defence components. The researches on defensins is becoming a worldwide major focus of biological and medical attention nowadays. The researches on molecular characteristics, biological and pathophysiological activities of HNP are reviewed.
3.Geriatric depression:clinical analysis of 78 cases.
Yufeng LI ; Jiandong MA ; Fusheng QI
Chinese Journal of Practical Internal Medicine 2001;0(06):-
Objective To study the etiology,clinical features,treatment of geriatric depression.Methods A total 78 patients aged over 60 years who had their first depression attack were studied.All the clinical data which included the etiology,family history,clinical features and treatments were obtained from our hospital.Results These patients had anxiety,physical complaints,cognitive disorder as well as gloom,thinking paucity,loss of interest and low self-esteem.Socio-psychological factors and somatic diseases had significant effect on it;few patients had positive family history.Conclusion Geriatric depression has not only the clinical featrues of CCMD-3 but also the clinical features of anxiety,hypocondrtasis,physical complaints and cognitive disorder.
4.The Inhibition of Antisense TRPl in the Proliferation of Malignant Melanoma Cells in vivo and in vitro
Chunying LI ; Tianwen GAO ; Xianlong QI ; Gang WANG ; Yufeng LIU
Chinese Journal of Cancer Biotherapy 1996;0(04):-
Objective: To study the inhibition of antisense TRP1 on cell growth of malignant melanoma(MM) and explore a new way for therapy of melanoma. Methods: Antisense TRP-1 recombinant vector was constructed and transfected into MM cells. According to the results of MTT, cell growth curves were drawn and then clonogenic assay was performed in vitro. At last, tumorigenesis assay was undertaken in nude mice in vivo. Results: Cell proliferations of TRP-1 transfected MM cells were inhibited compared with the control cells. The results of clonogenic assay displayed the difference of clonogenic percentage between TRP-1 transfected MM cells (52% , P
5.Effect of Butylphthalide on Autophagy of SH-SY5Y Cells Induced by l-methyl-4-phenyl-pyridiniumion
Yufeng JIA ; Qingwen WU ; Yuefa CHENG ; Juan CHEN ; Qi MENG
Chinese Journal of Rehabilitation Theory and Practice 2016;22(4):422-427
Objective To observe the effects of butylphthalide on the expression of autophagy-related protein and mRNA in l-meth-yl-4-phenyl-pyridiniumion (MPP+)-induced SH-SY5Y cells, and to explore the protective effect and possible mechanism of butylphthalide to the cell model of Parkinson's disease. Methods The SH-SY5Y cells were divided into control group (A), MPP+group (B), rapamycin pre-treated+MPP+group (C) and Butylphthalide pretreated+MPP+group (D). The relative viability of SH-SY5Y cells induced by MPP+was measured with MTT assay, the morphology of SH-SY5Y cells was observed. The expression of microtubule associated protein 1 light chain 3 (LC3)-II/I and Beclin 1 protein was detected by Western blotting. And the expression of LC3-II/I and Beclin 1 mRNA were assayed by re-al-time quantitative reverse transcription-PCR (RT-PCR). Results The viability rates of cells were significantly lower in group B than in group A (t=20.270, P<0.001), and were significantly higher in groups C and D than in group B (t>8.770, P<0.001), however, there was no significantly difference between groups C and D (t=2.270, P=0.064). The expression of LC3-II/I and Beclin 1 was higher in group B than in group A (t>6.647, P<0.01), and was higher in groups C and D than in group B (t>3.630, P<0.01), however, there was no significantly differ-ence between groups C and D (t<2.238, P≥0.05). Conclusion Butylphthalide could prevent the injury of SH-SY5Y cells induced by MPP+, which may affect Parkinson's disease by inducing autophagy.
6.Preventive effect of indomethacin intrarectal application on pancreatitis and hyperamylasemia of post-ERCP patients
Hong GUO ; Ran QI ; Yufeng ZHENG ; Lei GAO
Chinese Journal of Biochemical Pharmaceutics 2015;(3):112-114,118
Objective To investigate the preventive effect of intrarectal application of indomethacin on hyperamylasemia and acute pancreatitis after endoscopic retrograde cholangiopancreatography ( ERCP ) .Methods 180 patients who underwent ERCP were randomly divided into the indomethacin group, somatostatin group and control group.The serum amylase levels were measured before ERCP, 3 and 24 hours after the drug application.The incidences of post-ERCP hyperamylasemia and pancreatitis were observed.Results Serum amylase levels before and 3h after ERCP of three groups had no differences.The serm amylase levels of control group 24 h after ERCP (228.50 ±121.72) U/L was significantly higher than that of indomethacin group (94.09 ±68.45) U/L (P <0.01) and somatostatin group (76.53 ±74.47) U/L (P <0.05), while there was no difference between indomethacin group and somatostatin group.Compared with before ERCP, the serum amylase levels significantly increased in both control group 3 and 24h after ERCP (P <0.01), as well as in both indomethacin group and somatostatin group 3h after ERCP (P <0.05), but there were no apparent differences between pre-ERCP and 24 h after ERCP in both indomethacin group and somatostatin group.The incidences of post-ERCP hyperamylasemia in both indomethacin group and somatostatin group ( 10.00%, 11.67%) respectively was much lower than that in control groups (35.00%, P<0.01).The incidence of post-ERCP pancreatitis in indomethacin group (3.33%) was also lower than that in control group (15.00%, P<0.05), whlie there was no difference between indomethacin group and somatostatin group (5.00%).Conclusion The intrarectal application of indomethacin can effectively prevent acute pancreatitis after ERCP, which has the same effect as intravenous application of somatostatin.It is also convenient, economic and safe.
7.The study of rabbit chondrocytes growth in injective chitosan/polyvinyl alcohol gel composite
Biao CHEN ; Aixi YU ; Shaobo ZHU ; Baiwen QI ; Yufeng TANG
Chinese Journal of Microsurgery 2008;31(5):358-361,406
Objective To investigate the composite of chitosan(CS) and polyvinyl alcohol (PVA) as scaffold carrier for rabbit chondrocytes nurture and growth.Methods The third passage of chondrocytes were seeded in CS/PVA gel scaffold and 24,48 and 72 h after which cytoactive and toxicity were determined by MTT respectively.After one,two and three weeks,the growing status and morphology of chondrocytes in CS/PVA gel were observed with scaning electron microscope (SEM) and laser confocal scanning fluorescence microscope (LCSM).Results The third passage of chondrocytes in CS/PVA gel scaffold remained high proliferation ability.MTT measuring cell activity and virulence,the result showed that the number of cells obviously increased with the time,with statistical significance of difference between each groups (P<0.05),without side effect to cells by the material.Observation of scaning electron microscope and confocal laser scanning fluorescence microscope showed that chondrocytes grew well with the scaffold of CS/PVA gel.Conclusion CS/PVA mixed gel material can be used as scaffold for rabbit chondrocytes growing for repairing cartilages defect in tissue engineering.
8.Effects of fluid resuscitation and hemofiltration on Alveolar-arterial oxygen pressure exchange
Hongsheng REN ; Chunting WANG ; Yufeng CHU ; Jinjiao JIANG ; Jicheng ZHANG ; Mei MENG ; Guoqiang QI ; Min DING
Chinese Journal of Emergency Medicine 2010;19(12):1300-1303
Objective To evaluate the effects of fluid resuscitation and large-volume hemofiltration (HVHF) on the Alveolar-arterial oxygen exchange in patients with refractory septic shock. Method A total of 89 intensive care patients with refractory septic shock treated with fluid resuscitation and/or HVHF were enrolled between August 2006 and December 2009. All the patients were randomly divided into two groups. In group A, patients were treated with fluid resuscitation, n = 41 cases) and in group B, patients were treated with large-volume hemofiltration and fluid resuscitation, n =48). The O2 content of central venous blood(CcvO2), arterial oxygen content (CaO2), Alveolar-arterial oxygen pressure difference (P(A-a)DO2), the ratio of arterial oxygen pressure/alveolar oxygen pressure (PaO2/PAO2), respiratory index (RI) and oxygenation index (OI) were checked. The levels of oxygen exchange in two groups were detected by arterial blood gas analysis before treatnent, 24 hour, 72 hour and 7 days after treatment. The APACHE Ⅱ scores in patients with refractory septic shock were measured before and the 7th day after treatment with HVHF and/or fluid resuscitation respectively. Data were analyzed by using t -test and chi-square test to compare the differences and ratio between two groups and were expressed in mean ± standard deviation, and the analysis of variance was done with SPSS version 12.0 software. Results ① The differences in CcvO2 and CaO2 between two groups were[(0.60±0.24) vs. (0.72±-0.28), P <0.05 and (0.84±0.43) vs. (0.94±0.46), P <0.05]; and the oxygen extraction rates (O2ER) were significantly different between two groups [(28.7±2.4) vs. (21.7±3.4), P<0.01];② The levels of P(A-a)DO2、ratio of PaO2/PAO2、RI and OI in group B were reduced more significantly than in group A (P<0.05 or P<0.01);③The APACHE Ⅱ scores in both groups were gradually reduced after treatment for 7 days, and the APACHE Ⅱscore in group B on the 7th day of treatment were lower than that in group A[(17.2 ± 6.8) vs. (8.2 ± 3.8), P < 0.01]. Conclusions Fluid resuscitation and HVHF could improve alveolar-arterial-oxygen exchange in patients with refractory septic shock, and at the same time decreased the APACHE Ⅱ scores, improving the survival rate of patients.
9.Research Overview and Question Discussion on International Clinical Phenotype Ontology
Lin LIU ; Xuezhong ZHOU ; Xiaji ZHOU ; Runshun ZHANG ; Yufeng GUO ; Yinghui WANG ; Qi XIE ; Baoyan LIU
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;(8):1634-1638
Traditional Chinese medicine (TCM) clinical symptoms, which were main evidences in syndrome differentiation and treatment, were also main data in the clinical individual diagnosis and treatment. However, the absence of high-quality symptom ontology was still obvious in TCM clinical and data using. By analyzing the research and data of clinical phenotype ontologies associated with symptoms, this paper was aimed to introduce and sort the existing ontologies, in order to discuss related problems. Furthermore, we provided ideas and expound the importance of building data network of symptoms, diseases, genes, drugs, chemicals, side effects with the data we collected and disposed around symptoms, in order to construct TCM clinical phenotype ontology. We believed that our work will help the development of individual treatment and precision medicine in TCM. It was also the key of individual big data analysis which was urgent need to promote.
10.Effect of Butylphthalide on Apoptosis of SH-SY5Y Cells
Suchen ZHAO ; Qingwen WU ; Yuefa CHENG ; Juan CHEN ; Yufeng JIA ; Qi MENG
Chinese Journal of Rehabilitation Theory and Practice 2015;21(4):412-416
Objective To explore the effects of butylphthalide on the apoptosis of SH-SY5Y cells induced by the 1-methyl-4-phenylpyridinium iodide (MPP+). Methods SH-SY5Y cells were cultured with butylphthalide in the dosage of 1 µmol/L, 10 µmol/L and 20 µmol/L for 2 hours, and with MPP+ for 24 hours. The viability of cells was measured with trypan blue. The mitochondrial membrane potential was detected with Rhodamine 123. The content of P53 protein was detected with ELISA. The expression of P53 and cytochrome C (CytC) were detected with Western blotting. Results The viability of SH-SY5Y cells increased with the dosage of butylphthalide (P<0.05), while the mitochondrial membrane potential and the expression of P53 and CytC decreased (P<0.05). Conclusion Butylphthalide can prevents the SH-SY5Y cells from the injury induced by MPP+, which may associate with the inhibition of apoptosis through the expression of P53 and CytC.