1.Effects of LncRNA MT1JP on migration and invasion of uveal melanoma cells
Recent Advances in Ophthalmology 2017;37(6):531-534
Objective To investigate the effects of LncRNA MT1JP on the migration and invasion of uveal melanoma cell,and explore its regulatory mechanism.Methods The expression level of LncRNA MT1JP in uveal melanoma cell line and normal retinal pigment epithelium cell line were measured by qRT-PCR.The SP6.5 cell line was divided into three groups,MT1JP group transfect with pcDNA3.1-MT1JP,siMT1JP group transfect with pcDNA3.1-siMT1JP and NC group transfect with negative pcDNA3.1 plasmid.The migration and invasion ability were measured by cell wound scratch assay and transwell assay.Western blot was used to measure the expression level of P53 protein.Results The expression level of LncRNA MT1JP in SP6.5 and M23 cell line was 0.20 ± 0.02 and 0.31 ± 0.01,respectively,which was significantly lower than 1.0 in ARPE-19 cell line (all P <0.01).The wound healing rate in siMT1JP group was 61.50 ± 3.70%.while,NC group was 20.0% ± 2.10%,and MT1JP group was 10.6% ± 1.7%,there was no statistical difference among three groups (all P < 0.01).The invasion cell number was 75.6 ±6.8 in siMT1JP group,which was significantly more than 29.5 ± 3.9 in NC group,and 10.3 ±2.6 in MT1JP group,there was no statistical difference among three groups (all P < 0.01).The expression level of P53 protein in siMT1JP group was 0.41 ± 0.04,which was significantly lower than 1.0 in NC group (P < 0.01).However,the expression level of P53 protein in MT1JP group was 5.73 ±0.62,which was significantiy higher than 1.0 in NC group (P < 0.01).Conclusion LncRNA MT1JP inhibits the migration and invasion of uveal melanoma cell,which may be associated with upregulation of P53 expression.
2.Changes of mitogen- activated protein kinases signaltransduction pathway in ischemia/reperfusion injury
Qi CAI ; Xiaomei LI ; Haiyan WANG
Chinese Journal of Pathophysiology 2000;16(12):1335-1337
Mitogen - activated protein kinases (MAPKs), including extracellular signal - regulated kinases (ERKs), c - Jun NH2 - terminal kinases (JNKs) and p38 MAPK, play an important role in transducting environmental stimuli to the transcriptional machinery in the nucleus in mammalian cells by virtue of their ability to phosphorylate and regulate the activity of various transcription factors. It was recently found that the changes in activity of MAPKs occurred during ischemia/reperfusion, but the biological significance of the changes was still controversial.
3.Analysis of related factors influencing the routine blood test results
Jun CHEN ; Haiyan MA ; Huanyu QI
International Journal of Laboratory Medicine 2014;(19):2652-2653
Objective To explore the influencing factors of routine blood test results in the laboratory ,to ensure the accuracy of test results .Methods The influence of the different area of drawing blood and different testing time after blood collection were ob-served .Results The leukocyte count ,red blood cell count ,hemoglobin level of finger blood were obviously higher than those of venous blood ,and the platelet count was lower than that of venous blood ,the difference was statistically significant(P<0 .05) .≥6 h test specimens of blood platelet count was significantly lower ,compared to immediate detection and less than 6 h ,the difference was statistically significant(P<0 .05) .Conclusion The improvement of the system ,operation specification ,improving the quality of samples are helpful to improve the accuracy of test results .
4.A Discussion Regarding to the Discipline Connotation and Principle of TCM Informatics
Journal of Zhejiang Chinese Medical University 2006;0(05):-
Traditional Chinese Medicine Informatics is a new branch created by integration of Traditional Chinese Medicine and Information Science.To research the connotation and principle of TCM Informatics will enrich the theory and promote the development of disciplines.This article thoroughly discussed the theoretical foundation and discipline characters of TCM Informatics.Then it discussed the principle and tasks from TCM information formation,acquisition,identification,transformation,feedback control,activation and dissemination of experiential knowledge.
5.Changes of subfamilies of mitogen-activated protein kinases in recovery process of acute renal ischemia/reperfusion injury
Qi CAI ; Xiaomei LI ; Haiyan WANG
Chinese Journal of Pathophysiology 1989;0(06):-
AIM: To investigate the change and the possible role of mitogen-activated protein kinase(MAPK) subfamilies in early recovery process following acute renal ischemia/reperfusion injury. METHODS: Ischemia/reperfusion renal injury model was made by placing an atraumatic vascular clamp in renal pedicel. The morphologic change was observed by transmission electron microscope. The proliferating cell nuclear antigen(PCNA) positive renal cells were detected by immunohistochemistry. Extracellular signal-regulated kinase (ERK) and c-Jun NH 2-terminal kinase(JNK) activity was assayed by specific substrate phosphorylation with immunoprecipitation. RESULTS: After acute ischemia, microvilli in renal tubular cells appeared again after 2h of reperfusion. At the same time, the PCNA-positive cells were initially increased. ERK activity decreased at 45 min of ischemia, and completely recovered at 5 min of reperfusion. JNK activity was not influenced by ischemia, but increased at 5 min of reperfusion, reaching its maximal activity at 20 min of reperfusion, and prolonged within 2h reperfusion. CONCLUSION: After renal ischemia/reperfusion injury, the early recovery of renal tubule damage was related to the changes of MAPKs in which the increase of JNK activity might be more important.
6.Changes of mitogen-activated protein kinases signal transduction pathway in ischemia/reperfusion injury
Qi CAI ; Xiaomei LI ; Haiyan WANG
Chinese Journal of Pathophysiology 2000;0(12):-
Mitogen-activated protein kinases (MAPKs), including extracellular signal-regulated kinases (ERKs), c-Jun NH2-terminal kinases (JNKs) and p38 MAPK, play an important role in transducting environmental stimuli to the transcriptional machinery in the nucleus in mammalian cells by virtue of their ability to phosphorylate and regulate the activity of various transcription factors. It was recently found that the changes in activity of MAPKs occurred during ischemia/reperfusion, but the biological significance of the changes was still controversial.
7.Protective effect of Sunset Abelmoschus on podocyte injury in adriamycin-induced nephropathy rats
Qi BIAN ; Zhiyong GUO ; Haiyan HU ; Juan LI
Chinese Journal of Nephrology 2012;(11):840-844
Objective To explore the effect of Sunset Abelmoschus on podocyte injury in adriamycin-induced nephropathy rats.Methods Fifty male SD rats were randomly divided into five groups:sham operation group (n=10),model group (n=10),Sunset Abelmoschus low dose group (0.5 g·kg-1· d-1 n=10),middle dose group (1.0 g· kg-1· d-1,n=10) and high dose group (2.0 g· kg-1· d-1,n=10).Unilateral nephrectomy combined repeated adriamycin injection were performed to establish adriamycininduced nephropathy models.The rats were administered with the corresponding dose of Sunset Abelmoschus during the experiment period.Urinary protein,urinary N-acetyl glucose aminotransferase (NAG),serum albumin,serum creatinine and blood lipid were measured before operation and 2,4,6,8 weeks after operation.The rats were sacrificed on week 8 for the renal histological examination,including light microscope and electron microscope.Expression of nephrin was examined by immunofluorescence assays.Results As compared to model group,urinary protein and NAG significantly decreases in Sunset Abelmoschus groups in each time point,especially in high dose group (P<0.01),meanwhile the serum albumin increased and the disturbance of lipid metabolism was improved in Sunset Abelmoschus groups (P<0.05).Compared with sham group,Scr increased significantly in model group and Sunset Abelmoschus groups at the 4th week.At the 8th week,Scr in high dose group was lower than that in model group (P<0.05),and the ratio of glomerular globe sclerosis and segmental sclerosis,tubulointerstitial damage reduced in Sunset Abelmoschus groups,especially in high dose group.The podocyte damage and the extent of foot process fusion were improved in Sunset Abelmoschus groups compared with model group.Expression of nephrin increased in Sunset Abelmoschus groups than that in model group.Conclusion Sunset Abelmoschus can ameliorate proteinuria and renal tissue damage of adriamycin-induced nephropathy rats,whose mechanism may be associated with the improvement of podocyte injury.
8.Trends of colorectal cancer incidence in Xuhui District of Shanghai (2001-2011)
Qi YANG ; Zhihua GU ; Chunmin LIU ; Haiyan GU ; Hongwei NI
Chinese Journal of General Practitioners 2013;(3):181-184
Objective To investigate the trends of colorectal cancer incidence in Shanghai Xuhui District from 2001 to 2011.Methods Total 3042 cases of colon cancer and 1958 cases of rectal cancer were collected from the Shanghai Cancer Reporting System.The results were age-adjusted according the census data of 2000 as the standardized incidence.Results The standardized incidence rate of colorectal cancer in Xuhui District rose from the 21.83/100 000 in 2001 to 27.35/100 000 in 2006 and increased by 25.29% ; from 2009 to 2011 the incidence rate was stabilized.The ratio of colon to rectal cancer was 1.55:1,and the incidence of colon cancer was significantly higher than rectal cancer.The incidence rate of male and feinale colorectal cancer increased with age,especially at > 45 y group accounting for 98.70% and 98.37% of total incidence rate respectively.The ratio of male to female in colon cancer incidence rate was 0.98∶ 1,while that of rectal cancer was1.25∶ 1.Conclusion The incidence of colorectal cancer in Xuhui District from the last 11 years is significantly higher than of national level.More effective preventive measures should be taken.
9.Role of dextran sulfate in the catabolism of lipid emulsions
Chaonan FAN ; Haiyan ZHU ; Qing CAI ; Kemin QI
Chinese Journal of Clinical Nutrition 2011;19(4):259-262
ObjectiveTo investigate the effects of scavenger receptor A on the catabolism of lipid emulsions and further to see if it differently affects long-chain triglyceride (LCT) and fish oil (FO) emulsions. MethodsA total of 24 C57BL/6J female mice, 10 to 12 weeks old, were randomly divided into 4 groups with 6 mice in each group. Two groups of mice were intravenously injected with dextran sulfate ( DexSO4 ) ( 1 mg/mouse) followed by intravenous injection of [1α, 2α(n)-3H] cholesteryl oleoyl ether [(3H)CEt] labelled LCT or FO emulsions (0.4mg triglycerde/mouse) at 2 minutes respectively, and other two groups were injected by saline as controls before injection of (3H)CEt labelled LCT and FO emulsions. Then, blood was drawn at fixed intervals to measure the radioactivities and the emulsion's fractional catabolic rates (FCR) were calculated. With the same procedures above mentioned, non-radiolabelled LCT and FO emulsions were intravenously injected to mice to determine liver uptake of lipid emulsions under electromicroscopy. Finally, THP1 cell line was used to examine the effects of DexSO4 on cell uptake of LCT and FO emulsions in vitro. ResultsPre-injection of DexSO4 to mice decreased the FCR of both LCT and FO emulsions at 72.38% and 47.38% respectively, as compared to controls ( P =0.020 ). Electromicroscopy showed that pre-injection of DexS04 decreased the uptakes of LCT and FO emulsions by Kupffer cells and sinusoidal endothelial cells similarly. In hepatocytes, no lipid droplets existed in mice with LCT emulsion injection, whereas some lipid droplets were still shown in mice with FO emulsions but with less quantities compared to control mice.In vitro, addition of DexSO4 to medium decreased THP1 cell uptakes of LCT and FO emulsions ( P =0.003 and 0.008) by 30.74% and 41.60% respectively. However, no differences were found in the effects of DexS04 on cell uptakes between LCT and FO emulsions ( P =0.080). ConclusionScavenger receptor A plays important roles in catabolism of lipid emulsions to some extent, and it's effects on FO emulsions may be less than LCT emulsions.
10.Characteristics of quantitative monitoring of brain function during perioperative period in elderly patients and its relationship with postoperative cognitive dysfunction
Xue TIAN ; Haiyan AN ; Yi FENG ; Juehao ZHANG ; Qi YAN
Chinese Journal of Anesthesiology 2015;35(2):191-193
Objective To evaluate the characteristics of quantitative monitoring of brain function during the perioperative period in elderly patients and its relationship with postoperative cognitive dysfunction (POCD).Methods Seventy ASA physical status Ⅰ or Ⅱ patients,aged ≥ 60 yr,scheduled for elective lumbar spine decompression and fusion surgery under general anesthesia,having an expected postoperative length of hospital stay ≥ 7 days,were enrolled in the study.The cognitive function was assessed by using Mini-Mental State Examination before operation and the results were normal.Fifty healthy elderly volunteers were chosen and served as control group.Cognitive function was assessed at l day before operation (D0) and 3 (D3) and 7 days after operation (D7).Z score was used to identify POCD.All the patients were then divided into POCD group or control group (group C) according to the results of diagnosis.Quantitative monitoring of brain function was carried out using a traction system,and the wavelet index (WLI),i_22 and i_20 were recorded.Results A total of 67 patients completed the study and were enrolled in the analysis,there were 9 cases in group C,and 58 cases in group POCD.The WLI was significantly decreased at D7,and no significant change was found in WLI at D3 as compared with the value at D0.The WLI was significantly lower at D7 than at D3.There was no significant difference in i_22 and i_20 between the three time points.Compared with group C,i_22 was significantly decreased at D0,and no significant change was found in i_22 at the other time points and in WLI at each time point in POCD group.Conclusion During quantitative monitoring of brain function during the perioperative period in the elderly patients,WLI is significantly decreased on 7th day postoperatively,and no significant change is found in i_20 and i_22,however,the pre-operative low i_22 value can predict the development of POCD.