1.Correlation Between Aldosterone and Gestational Diabetes Mellitus
Liping LI ; Jie LIU ; Yujin MA
Tianjin Medical Journal 2014;(11):1094-1096
Objective To analyze the relationship between plasma aldosterone level and gestational diabetes melli?tus. Methods All subjects were divided into three groups (n=20 in each group):gestational diabetes mellitus (GDM) group, pregnancy with normal glucose group,non-pregnant healthy women group. Pre-pregnant body mass index (BMI) was calcu?lated, and fasting blood glucose (FBG), blood lipid level, Fins, HOMA-IR index, RASS, PRA, ATIi and ALD were examined besides glucose intolerance test. Results The plasma ALD level was significantly higher in GDM group than that of NGT group and control group(pmol/L:1 130.15±135.45 vs 1 053.98±108.86 vs 544.31±127.97). The plasma ALD level was posi?tively correlated with FBG,1 h PBG ,2 hPBG,Fins , HOMA-IR and blood triglyceride (r=0.657, 0.757, 0.713, 0.429,P<0.05),but negatively correlated with HDL-C(r=-0.267,P=0.039). Stepwise regression analysis revealed that plasma aldo?sterone was the independent risk factor of GDM. Conclusion RASS is excessively activated in pregnancy, which contrib?utes to gestational diabetes mellitus.
2.Mechanisms of MDM2-p53 pathway in apoptosis of in K562/G01 cells induced by triptolide
Xiaolin JIAO ; Liangming MA ; Yujin LU
Journal of Leukemia & Lymphoma 2016;25(6):336-339,343
Objective To explore the apoptosis of K562/G01 cells induced by triptolide through MDM2/p53 signaling pathway. Methods K562/G01 cell line was treated with different concentrations of triptolide. MTT was used to detect the cell proliferation inhibition rate. FCM was used to determine the apoptosis rate changes in 12 h and 24 h. The mRNA expression levels of bcr-abl, XIAP, MDM2, p53 were detected by real-time quantitative PCR. Results After treatment by 10, 20, 40, 80, 100 nmol/L TP in 12, 24, 48 h, the viability of K562/G01 cells was inhibited in time-dose dependence manner. K562/G01 cells was treated by 20 nmol/L, 40 nmol/L TP after 12 h, 24 h, the cell apoptosis rate was rising with drug concentration and time. The bcr-abl, XIAP, MDM2 mRNA expression was down-regulated and p53 mRNA expression was up-regulated by TP. Conclusion TP can inhibit the growth of K562/G01 cell line and induce apoptosis through XIAP-MDM2-p53 signaling pathway.
3.Tetrandrine affects the expression of DNMT in HL-60 cells
Yafang GUO ; Liangming MA ; Yujin LU ; Bo BAI
Journal of Chinese Physician 2015;17(4):541-544
Objective To investigate the expression of DNA methyltransferase (DNMT) in HL-60 cells induced by tetrandrine (Tet).Methods HL-60 cells were treated with different concentrations of Tet and decitabine (DAC) alone and in combination with both.Methyl thiazolyl tetrazolium (MTT) assay was used to assess cytotoxic effect.Flow cytometry (FCM) was used to determine apoptosis rate.Real-time quantitative polymerase chain reaction (PCR) assay was used to quantify mRNA levels of DNMT.Western blot was used to quantify the expression of DNMT protein.Results Tet inhibited the growth and proliferation of HL-60 cells in a time-and dose-dependent manners (both P <0.01).Tet treated HL-60 cells after 48 h at the concentration of 2 μmol/L,and 4 μmol/L,the levels of DNMT gene and protein in the drug administration group decreased compared to the control group.After incubation for 48 h with Tet 2 μmol/L combined with DAC 4 μmol/L,the combination group was significantly depressed.Conclusions Tet could potently inhibit the growth and proliferation of HL-60 cells,reduce the expression levels of DNMT mRNA and protein,and have a more obvious effect in the combination group.
4.Bromodomain4 inhibitor JQ1 inhibits the proliferation of Ph positive acute lymphocytic leukemia cells and its mechanism
Xiaozhen WANG ; Liangming MA ; Tao WANG ; Yan WANG ; Yujin LU
Journal of Leukemia & Lymphoma 2015;24(9):531-534
Objective To observe the effect of bromodomain4 (brd4) inhibitor JQ1 on proliferation inhibition and apoptosis of Ph positive acute lymphocytic leukemia (Ph+ ALL) cells, and to explore the influence on the expression of brd4 and its downstream genes (myc and p53), and the reverse effect on bcr-abl.Methods Different concentrations of JQ1 were used on SUP-B15 cells.The proliferation inhibition rate was detected by MTT, the apoptosis rate was determined by flow cytometry (FCM), and the expressions of bcr-abl mRNA, brd4 mRNA, myc mRNA and p53 mRNA were detected by real-time fluorescent quantitative PCR (RT-PCR).Results Different concentrations of JQ1 inhibited SUP-B15 cells proliferation and induced cell apoptosis.The apoptosis rate was significantly increased compared with that in control group with a time-dose dependent manner.Median inhibitory concentration at 72 h was 1.0 pmol/L.At the same time, JQ1 decreased the transcription levels of bcr-abl mRNA, brd4 mRNA and myc mRNA, and increased the transcription level of p53 mRNA.Conclusions As a brd4 inhibitor, JQ1 can decrease the expression of brd4 to affect the expression of its downstream genes myc and p53, meanwhile, it can change the over expression of bcr-abl to suppress the proliferation of Ph+ ALL cells and induce apoptosis.
5.Study on mechanism of mitochondrial in K562/G01 cells apoptosis induced by triptolide
Xiaofeng LIU ; Liangming MA ; Yujin LU ; Bo BAI
Journal of Leukemia & Lymphoma 2014;23(7):397-400
Objective To investigate the possible mechanism of mitochondrial in chronic myeloid leukemia cells K562/G01 cells apoptosis induced by triptolide.Methods K562/G01 cells were treated with different concentrations of triptolide.MTT assay was used to assess cytotoxic effect.FCM was used to determine apoptosis rate,mitochondrial membrane potential and the activity of Caspase-9 of each experimental group.Real-time quantitative PCR assay was used to quantify mRNA levels of Caspase-9 and cytochrome C and Western blot assay was used to determine protein levels of cytochrome C.Results Triptolide inhibited the growth and proliferation of K562/G01 cells in a time-and dose-dependent manner (both P < 0.001).Meantime,triptolide could make the mitochondria membrane potential fade away and enhance the activity of Caspase-9 (F =566.431,2 555.485,P < 0.001).In addition,triptolide could dose-dependently up-regulated the transcription of Caspase-9 and cytochrome C (F =61 007.702,452 121.760,P < 0.001),and the protein expression of cytochrome C,whose gray value in each experimental group was 21.54±0.59,39.63±0.58,53.29± 1.47 and 75.68±1.87 (F =5 677.928,P < 0.001) respectively.Conclusion Triptolide could potently inhibit the growth and proliferation of K562/G01 cells,and the mitochondria apoptosis pathway might be one of the important apoptosis mechanisms in chronic myeloid leukemia cells induced by triptolide.
6.Effects of triptolide on proliferation and apoptosis of acute myeloid leukemia cell line MV411 with FMS-like tyrosine kinase 3 internal tandem duplication and their mechanisms
Weilan YAN ; Liangming MA ; Tao WANG ; Yujin LU
Journal of Leukemia & Lymphoma 2017;26(6):321-324,330
Objective To investigate the effects of triptolide (TP) on proliferation and apoptosis of acute myeloid leukemia cell line MV411 with FMS-like tyrosine kinase 3 internal tandem duplication (FLT3-ITD), and its effect on PI3K-Akt-mTOR pathway. Methods MTT assay was used to detect the proliferation inhibition of MV411 cell proliferation treated by different concentrations of TP in 24, 48 and 72 h. Flow cytometry was used to measure the cell apoptosis rate at 48 and 72 h. Real-time fluorescent quantitative PCR was used to detect the expression of FLT3, PTEN, PI3K, Akt, mTOR mRNA on PI3K-Akt-mTOR pathway. Results After treated by 0, 5, 10, 20, 40, and 80 nmol/L TP in 24, 48 and 72 h, the viability of MV411 cells was inhibited in a time-dose dependence manner. MV411 cells was treated by 0, 10, and 20 nmol/L TP after 48 and 72 h, the cell apoptosis rates were rising with the increasing of drug concentration, there were statistical significances [48 h:(3.30±0.20) %, (17.10±0.36) %, (35.67±0.61) %, 72 h: (7.37±0.32) %, (49.33± 0.40)%, (68.92±0.11)%, all P=0.000]. The expressions of FLT3, PI3K, Akt, and mTOR mRNA were down-regulated and PTEN mRNA expression was up-regulated by TP. Conclusion TP may inhibit the proliferation and induce apoptosis of MV411 cells by affecting the expression of PI3K-Akt-mTOR pathway related genes.
7.Application of new hypoglycemic drugs of the three most common types of maturity-onset diabetes of the young
Qianwen DUAN ; Huifang PENG ; Yujin MA ; Hongwei JIANG
Chinese Journal of Endocrinology and Metabolism 2021;37(3):262-266
Maturity-onset diabetes of the young (MODY)is a heterogeneous monogenic diabetes, in which MODY1, MODY2, and MODY3 are the most common subtypes. In recent years, new hypoglycemic drugs such as glucagon-like peptide-1 receptor agonists (GLP-1RA), dipeptidyl peptidase-4 inhibitors (DPP-4i), sodium-glucose co-transporter 2 inhibitors (SGLT2i), and glucokinase activators (GKA)have made good progress in the treatment of diabetes. Based on the latest basic and clinical evidence, the article reviews the pathogenesis, clinical features, diagnosis and treatment progress of new hypoglycemic drugs of the above three types of MODY, aiming to develop safer and more effective new ways for the diagnosis and treatment of MODY.
8.Treatment of malignant serosal effusion through injecting donor lymphocytes into serosal cavity
Lihui MA ; Baoping LI ; Zhuola LIU ; Zhenhua QIAO ; Lei ZHANG ; Yuee CUI ; Yujin LU
Cancer Research and Clinic 2000;0(01):-
Objective To investigate the clinical efficacy and side effects of malignant serosal effusion through injecting donor lymphocytes into serosal cavity once for all.Methods First,the serosal effusion was drained thoroughly,then donor lymphocytes were injected into pleural cavity once for all.Results Nine cases of malignant serosal effusion were treated;significant effectiveness included five cases,partial effectiveness four cases.The effect rate was 100 %.The main side effects were fever and chest pain.Conclusion Treatment of malignant serosal effusion through injecting donor lymphocytes into serosal cavity once for all has definite effectiveness,with acceptable side effects.
9.Application of near-infrared spectrum in diagnosis of epidural and subdural hematoma
Yanong LI ; Yujin ZHANG ; He JIN ; Zheng WANG ; Zhaozhao WANG ; Jun MA
Chinese Journal of Medical Imaging Technology 2017;33(7):965-968
Objective To explore the application value of near infrared spectrum (NIRS) in the detection of epidural and subdural hematoma in clinic.Methods Thirty-four patients with subdural and epidural hematomas (study group) confirmed by CT or MRI and 14 healthy volunteers (contrast group) were selected.The NIRS equipment which was produced by Institute of Automation of Chinese Academy of Sciences were used to assess the intracranial hematomas.Taking CT or MRI results as the golden standard,the diagnostic efficiency of NIRS for subdural and epidural hematomas were evaluated.Results For the diagnosis of subdural and epidural hematomas,the sensitivity,specificity,accuracy,positive predictive value and negative predictive value were 91.18%(31/34),71.43% (10/14),85.42%(41/48),88.57%(31/35) and 76.92% (10/13),respectively.Conclusion NIRS is a good device to predict intracranial subdural and epidural hematomas with high sensitivity and positive predictive value,which is helpful for early diagnosis and therapy in clinic.
10.Population Distribution and Incidence Analyses of Hyperuricemia in Zhoushan Island
Yinghong AN ; Yuhai WENG ; Youyi CHEN ; Yujin XU ; Hongyu MA ; Meicai ZHU
Journal of Modern Laboratory Medicine 2016;31(3):102-104,107
Objective To investigate the distribution and incidence of hyperuricemia for the Zhoushan island residents in Zhe-jiang province and provide scientific advice for health management.Methods The uric acid reports of island residents were analyzed by a retrospective statistical analysis in the Physical Examination Center of the 413 Hospital from October 2013 to October 2015.The patients with metabolic diseases (such as diabetes,chronic renal failure and other people,etc.)were ex-cluded.According to the different gender and different age groups,the average level of uric acid,hyperuricemia occurrence rate and the difference among the groups were performed statistical analyses.The single factor analysis of variance was used by Microsoft 2003 Excel software.Results The average serum uric acid level of 7 310 island residents was 283±82μmol/L and the incidence of hyperuricemia was 21.2%.The incidence of hyperuricemia was 33.6% in 31~40 years group,and the average level of uric acid was 343±86μmol/L and significantly higher than≤30 years group,significant statistic difference were observed.The incidence of hyperuricemia was more than 15% in≥41 years group,significantly higher than≤30 years group.The population of physical examination was concentrated in the 31~40 years group.The hyperuricemia incidence was 27.9% in 5 214 male residents,and the average serum uric acid level was 368±74μmol/L and higher than the female group (P<0.001).The hyperuricemia incidence was as high as 43.1% in 31~40 years group.But the level of average serum uric acid showed no significant difference with≤30 years group(P>0.05).The level of average serum uric acid level was less in≥61 and 41~50 years group than in ≤30 years group (P<0.05),but the hyperuricemia incidence were higher than ≤30 years group.The incidence of hyperuricemia was 4.6% in 2 096 female residents.The level of average serum uric acid was 257±57μmol/L and lower than the male group in all age groups (P<0.001).The incidence of hyperuricemia was 18.6% in≥60 years old and lower than 10% in the other groups.The incidence of hyperuricemia increased gradually with age.Conclu-sion The hyperuricemia incidence in island residents was higher,and higher in male than in female.The occurrence of hype-ruricemia was significantly younger.Therefore,health education,reasonable diet adj ustment,improvement of lifestyle and eating habits etc.Should be conducted for a long time to prevent the occurrence of hyperuricemia and related diseases.