1.The effect of 8-iso prostaglandin F2αon Nonalcoholic fatty liver disease changed by glucose excursion in type 2 diabetes melli-tus
Na YANG ; Guangxia XI ; Min GUO ; Hong YAO
Journal of Chinese Physician 2014;(2):192-195
Objective To investigate the level change of glucose excursion , 8-iso prostaglandin F 2α( 8-iso-PGF2α) in type 2 diabetes mellitus(T2DM), and its effects on nonalcoholic fatty liver disease (NAFLD).Methods A total of 62 inpatients with type 2 diabetes mellitus including T2DM group(DM, 30 cases) and T2DM with NAFLD group(DM+NAFLD, 32 cases) were recruited from October 2012 to November 2013 , normal glucose tolerance group had normal glucose tolerance ( NGT;30 cases ) with normal physical examination results.The age, gender, duration, blood pressure, body mass index (BMI), and blood lipid among three groups were no statistical difference .The clinical data of each patient were collected by professional people .Blood lipids and glycated hemoglobin (HbA1c) were detected.Oral glucose tolerance test (OGTT) were taken in all groups.The Postprandial glucose excursion (PPGE), blood glucose standard deviation (SDBG), mean blood glucose and (MBG) and HbA1c were used to evaluate the glucose excursion.Serum 8-iso-PGF2αwas detected by enzyme-linked immunosorbent (ELISA) to evaluate oxidative stress.Inter-group com-parison was conducted with analysis of variance ( ANOVA) .Correlation analysis was used to evaluate the factors of influence .Results⑴The levels of PPGE[(7.34 ±2.23) mmol/L vs (8.52 ±2.43) mmol/L],SDBG[(2.43 ±0.90) mmol/L vs (2.80 ±0.78) mmol/L], MBG[(11.06 ±1.76) mmol/L vs (13.65 ±2.83) mmol/L], and HbA1c [(7.59 ±1.02)% vs (8.05 ±1.52)%] in T2DM group and T2DM with NAFLD group were significantly higher than that in NGT group (both P <0.05); and that in NAFLD group have significantly rise than that in DM group ( P <0.05), but there was no significant difference in HbA 1c between groups.⑵ The level of serum 8-iso-PGF2αwas gradually increased from NGT group [(33.45 ±8.60) pg/ml], DM group [(47.33 ±15.30) pg/ml], to DM +NAFLD group [(56.07 ±13.10) pg/ml], with statistically significant difference ( P <0.05);⑶The Person corre-lation analysis showed that the content of serum 8-iso-PGF2αwas positively correlated with PPGE, SDBG, and MBG ( r =0.796, 0.778 , 0.712 , P <0.01 ) .Conclusions Serum 8-iso-PGF2αis a better parameter to reflect the status of body oxidative stress .The level of oxidative stress is increased with the increase of glucose excursion in T 2DM, which is the important mechanism of its complica-tions of NAFLD.
2.The imaging display of aortic dissection in T1W/TFE sequence of MRI
Nong XI ; Xiaoming WU ; Jian YANG ; Junfeng WANG ; Min CHEN
Journal of Xi'an Jiaotong University(Medical Sciences) 1981;0(03):-
Objective To examine aortic dissection by using T1W/TFE sequence and to observe the imaging characteristics of aortic dissection in T1W/TFE sequence. Methods Twenty patients confirmed as aortic dissection by CT and ultrasound received MRI scanning of T1W/TFE sequence on inclined sagittal and SE sequence on transaxial at Philips Gyroscan 1.5 MR imager. The signal changes of aortic dissection in T1W/TFE sequence were observed. Results In T1W/TFE sequence, we observed not only an intimal flap, a double lumen and range of aortic dissection, but also the site of intimal tear and thrombus in the false lumen. Conclusion By using T1W/TFE sequence we obtained the high quality image of aortic dissection and high contrast of imaging. Combined with SE sequence , T1W/TFE sequence can provide reliable information for analyzing and curing aortic dissection in clinic.
3.Effect of ranibizumab injections combining with 577nm laser macular grid photocoagulation for treatment of severe diabetic macular edema
International Eye Science 2017;17(4):694-697
AIM: To evaluate the effect of a combination therapy regimen, utilizing 3 monthly ranibizumab injections followed by 577nm laser macular grid photocoagulation(MGP)for treatment of severe diabetic macular edema(DME).
METHODS: Thirty-eight patients(53 eyes)with severe DME were divided into combination therapy group(20 patients, 28 eyes)and ranibizumab monotherapy group(18 patients, 25 eyes)randomly. All patients initially received 3 monthly ranibizumab injections(loading phase)and additional injections pro re nata(PRN). Patients in combination therapy group additionally received 577nm laser MGP during the first month after the loading phase. Change in best corrected visual acuity(BCVA)and central macular thickness(CMT)from baseline to 12mo as well as the mean number of injections after the loading phase were compared between the two groups.
RESULTS: Change in BCVA from baseline in combination therapy group and ranibizumab monotherapy group at 3, 6, 9 and 12mo were 7.6±7.9 letters vs 8.5±5.8 letters, 7.2±6.1 letters vs 7.5±6.4 letters, 8.3±6.6 letters vs 8.4±8.1 letters, 7.9±7.1 letters vs 6.5±6.3 letters respectively. Change in CMT at 3, 6, 9 and 12mo were 131± 162μm, 108± 131μm, 115± 129μm, 126± 157μm in combination therapy group as well as 129±117μm, 96±117μm, 104±135μm, 101±112μm in monotherapy group. The difference between the two groups was not statistically significant. In combination therapy group, significantly less injection was required after the loading phase(0.87±1.35 vs 2.96±2.07,t=1.714, P<0.01). By 12mo, 43% of patients in the combination therapy group had need for additional ranibizumab injections as compared to 84% in monotherapy group(t=1.385,P<0.01).
CONCLUSION: The 577nm laser MGP combined with ranibizumab injection demonstrated markedly visual gains and CMT decrease in DME patients. Retreatment rate and number of injections were significantly lower in combination therapy group compared to ranibizumab monotherapy group.
4.Microarray study of mechanism of trichostatin a inducing apoptosis of Molt-4 cells.
Zhenya, HONG ; Zhiqiang, HAN ; Min, XIAO ; Yang, YANG ; Xi, XIA ; Jianfeng, ZHOU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2009;29(4):445-50
Histone deacetylase was overexpressed in a variety of cancers and was closely correlated with oncogenic factors. The histone deacetylase inhibitor, trichostatin A (TSA) was shown to induce apoptosis in many cancer cells. However, the mechanism of TSA on induction of cancer cells apoptosis is poorly understood. This study was designed to characterize the global gene expression profiles before and after treatment of human leukemia cell line Molt-4 with TSA. Flow cytometry, MTT and DNA ladder were used to observe the effect of TSA on the apoptosis of MOLT-4 cells and normal human peripheral blood mononuclear cells (PBMC). Microarray, reverse transcription-polymerase chain reaction (RT-PCR) and Western blotting were used to detect the difference of gene and protein expressions of Molt-4 cells after incubation of the cells with TSA. The results showed that TSA could induce Molt-4 apoptosis in dose- and time-dependent manners but spared PBMCs. Microarray analysis showed that after incubation with TSA for 9 h, 310 genes were upregulated and 313 genes were deregulated. These genes regulate the growth, differentiation and survival of cells. Among these genes, STAT5A was down-regulated by 80.4% and MYC was down-regulated by 77.3%. It was concluded that TSA has definite growth-inhibiting and apoptosis-inducing effects on Molt-4 cells in time- and dose-dependent manners, with weak cytotoxic effects on PBMCs at the same time. The mechanism of TSA selectively inducing apoptosis and inhibiting growth may be ascribed to the changes of pro-proliferation genes and anti-apoptosis genes.
5.The effects of electroacupuncture on the synaptic structure of hippocampal CA3 neurons and learning and memory ability after cerebral infarct
Xiaodong DUAN ; Qian YU ; Bo QIN ; Lei ZHANG ; Min YANG ; Xi LIU
Chinese Journal of Physical Medicine and Rehabilitation 2010;32(4):262-265
Objective To evaluate the effects of electroacupuncture (EA) on synaptic interface structures around a cerebral infarct and evaluate how learning and memory relate to synoptic structure. Methods Forty-eight male, adult Wistar rats were divided randomly and equally into an EA group and a control group after models of ische-mic brain injury had been established. Each group was then divided into 1 week, 2 week and 3 week sub-groups. In the EA group EA was started 24 hours after the operation at the Baihui (DU20) and Da Zhui (BUI4) points and continued for one week, two weeks or three weeks. The control group was fed in normal cages and had no special treatment. Synoptic substructures in the hippocampal CA3 area of the ischemic side were assessed morphologically and quantitatively. Results The synaptic curvatures and postsynaptic density (PSD) an well as the width of the ac-tive area increased significantly in the EA group compared with the control group. Morris water maze learning ability in the EA group exceeded that in the control group. Spatial probe test results also significantly improved in the EA groups compared with the control groups. Conclusions Learning and memory improved in the injured rats following EA, and this is likely to be related to synaptic changes and synaptic plasticity increasing.
6.Effect of siRNA interfering SLC7a8 on uptaking L-dopa in NRK-52E cells
Min ZHANG ; Xiaoyan HUANG ; Xi ZHOU ; Xiangxiang SHI ; Fang HUANG ; Huaiqin ZHANG ; Deye YANG
Chinese Journal of Pathophysiology 2010;26(3):504-508
AIM: To investigate the effect of selective silencing of SLC7a8 on uptaking L-dopa in renal tubular epithelial cells of rat (NRK-52E). METHODS: The three siRNAs targeting SLC7a8 (siRNA-1, siRNA-2, siRNA-3) were designed and synthesized. A siRNA with nonspecific coding sequence (siRNA-con) was used for control. All siRNAs were transfected into NRK-52E cells. The siRNA-con transfected group, blank control group and gene-specific silencing SLC7a8 group were set up. The efficiency of transfection was estimated by flow cytometry. The efficiency of RNA interference was detected and screened by RT-PCR preliminarily, and was followed by Western blotting at protein level. The concentrations of L-dopa uptake into the NRK-52E cells were detected by ultraviolet spectrophotometry at different time points (6, 12, 24, 36, 48, 60, 72 and 120 min). RESULTS: The transfection efficiency was 94% detected by flow cytometry. The initial screening of RT-PCR showed that the efficiencies of RNA interference of siRNA-1 and siRNA-3 were higher, and siRNA-3 was the highest at protein level determined by Western blotting. No distinctive change was found between siRNA-con treated NRK-52E and blank control cells. The L-dopa uptake at different time points (6, 12, 24, 36, 48, 60, 72 and 120min) in siRNA-interference group was lower than that in siRNA-con transfected group and blank control group. No significant difference of L-dopa uptake between siRNA-con group and blank control group was observed. CONCLUSION: RNA interference technology selectively down-regulates SLC7a8 expression in rat renal tubular epithelial cells. The L-dopa uptake is also decreased after specifically silencing the slc7a8 expression.
7.Effects of Imiquimod on the Secretion of Cytokines by Human Epidermal Langerhans Cells and Ha- CaT Cells
Xu MIAO ; Dan LUO ; Xi JI ; Lixian XU ; Wei MIN ; Xiangfei LIN ; Yang XU
Chinese Journal of Dermatology 2003;0(10):-
Objective To investigate the effects of imiquimod on cytokine secretions of normal human epidermal Langerhans cells (LCs) and HaCaT cells, and to better understand the mechanism of immune regulation by imiquimod. Methods LCs were sorted from prepared epidenmal cells by density gradient centrifugation and magnetic-activated cell sorting (MACS). LCs and HaCaT cells were cultured in media with or without 5 ?g/mL of imiquimod for 4 hours, then cell-free culture supernatants were harvested, cytokines were detected by ELISA kits. Results TNF-?, IL-1? and IL-6 secreted from imiquimod treated LCs were all higher than those from control LCs (all P
8.A control study on emotion identification and emotion quotient of criminal adolescent
Lushi JING ; Aoling LI ; Min ZHANG ; Tao XU ; Zhengjun WU ; Yan WU ; Xi YANG
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(1):50-52
Objective To explore the differences of emotion identification and emotion quotient (EQ) scores between the teenage criminal group and the vocational school student group,and conduct research on the correlation between the emotion identification and EQ of teenage criminals.Methods A self-designed questionnaire,experiments about emotion identification and EQ tests were applied to 48 teenage criminals and 46 vocational school students who had the matching age,IQ and sex with the teenage criminals.Results The number of correct responses to neutral mood among the teenage criminals (60.00± 17.07) was lower than that of vocational school students (66.12±5.45).There was no difference about EQ between these two groups(90.48± 13.31,90.76± 19.85,P >0.05),but in pressure management dimensions,teenage criminals had some differences compared with the vocational school students (53.97± 8.95,57.84 ± 7.26,P< 0.05),especially in impulse control (24.97 ± 4.98,28.95 ± 5.22,P<0.01).The general state of mind,pressure management,individual components and interpersonal components was related to the emotion identification(r 1 =0.43,r 2 =0.36-0.38,r 3 =0.37,P<0.05).Conclusion Emotion identification of teenage criminals have some flaws,especially the judgment on neutral mood,and it is easily to be wrong.Teenage criminals lack of controlling in EQ.The emotion identification and EQ of the teenage criminal interact with each other.
9.Expression,Purification and Antibody Preparation of Recombinant C8orf32 Protein
Lei ZHU ; Zheng-Xi ZHANG ; Guo-Xin NI ; Xue-Min XU ; Biao-Yang LIN ; Wei LI ;
China Biotechnology 2006;0(04):-
C8orf32 is a gene which has not been functionally characterized,the mRNA level of this gene is significantly higher in breast cancer tissues than that in normal breast tissues.The amplified cDNA fragment was inserted into the pGEX-6P1 vector fused with the upstream GST gene.The expression vector was transformed into the E.coli BL21(DE3) strain and expression of GST-C8orf32 fusion protein was induced by IPTG..After removal of GST tag by site-specific protease,the C8orf32 protein fused with an eight amino acid peptide tag was obtained.The purity of recombinant C8orf32 protein was about 95%.The identity of the purified protein was confirmed by N-terminal sequencing and tandem mass spectrometry.The polyclonal antibody was prepared by immunizing the New Zealand white rabbits with C8orf32 protein.The polyclonal antibody was proved to recognize the C8orf32 protein correctly.The purified C8orf32 protein can be used for structural and functional studies and the polyclonal antibody can be used for tissue specific protein expression profiling.
10.Effect of traditional Chinese medicine five elements music on cancer-related fatigue of chemotherapy patients
Yun-Na HUANG ; Xi YANG ; Qiu-Min YANG
Chinese Journal of Modern Nursing 2012;18(12):1412-1414
Objective To study the effect of traditional Chinese medicine (TCM) five elements music on cancer-related fatigue CRF of chemotherapy patients.Methods 80 patients were randomly divided into the experimental group and the control group equally.The experimental group was given the TCM five elements music intervention on the basis of routine care at the start of chemotherapy for 60 min,once a day for three cycles,each cycle and chemotherapy cycle were synchronic.The control group was given routine care with emphasis on psychological care.The two groups were given the CRF assessment of Brief Fatigue Inventory developed by the pain research team of the U.S.Adorson Cancer Center before and after the treatment,and the quality of life of patients was evaluated by Quality of Life Questionnaire (EORTC-QLQ-C30) by the European Cancer Treatment and Research Organization.Results CRF levels of the experimental group were markedly reduced after the intervention of TCM five elements music,among which slight fatigue accounted for 37.5%,moderate fatigue accounted for 10% and serious fatigue accounted for 2.5%.There was significant difference between the two groups ( U =6.062 3,P < 0.0 1 ).The proportion of moderate and serious fatigue was 12.5% in the experimental group and 40% in the control group after treatment,and there was significant difference between the two groups (U=3.282 8,P<0.01 ).The total score of quality of life was (43.12±6.21) in the experimental group and (52.30 ± 7.28 ) in the control group after treatment.The difference was statistically significant (t =4.683 0,P<0.05).Conclusions Application of TCM Five Elements music intervention on chemotherapy patients can eliminate or alleviate CRF and improve the quality of life of patients.