1.Relationship between carotid artery intima-media thickness and renal function in patients with diabetes mellitus
Pengming ZHAO ; Jianqin WANG ; Yaojun LIANG
Chinese Journal of Nephrology 2016;32(6):406-411
Objective To investigate the relationship between carotid artery intima-media thickness and renal function in patients with diabetes mellitus.Methods 424 patients of type 2 diabetes without dialysis were enrolled in a cross-sectional study.According to their artery intima-media thickness (IMT),the patients were divided into normal group and higher IMT group.All patients according to UAER or 24h urinary protein were divided into normal proteinuria group,micro-proteinuria group and clinical proteinuria group.The biochemical examination,eGFR,and atherosclerotic plaque of different groups were compared.Pearson or spearman correlation was used to analyze the relationship between eGFR,IMT and other parameters.Risk factors for eGFR decline were analyzed by binary logistic regression.Results Compared with normal group,patients in the higher IMT group were older [(63.3±10.2) year vs (52.5 ± 10.6) year,P < 0.05],and underwent longer duration of diabetes [(8.9±6.7) year vs (6.2±5.7) year,P < 0.05].Their level of eGFR was decreased [(75.92±28.00) ml/min vs (91.64±24.05) ml/ min,P < 0.05],while plaque incidence (71.3% vs 18.3%,x2=112.42,P < 0.01) and prevalence of hypertension (56.4% vs 29.6%,x2=27.22,P < 0.01) increased.Correlation analysis showed that IMT was positively correlated with age (r=0.503,P < 0.01),duration of diabetes (r=0.204,P < 0.01),24 h urine protein (rs=0.175,P < 0.05),plaque (rs=0.562,P < 0.01),and hypertension (rs=0.193,P < 0.01),but negatively correlated with eGFR (r=-0.307,P < 0.01).Logistic regression analysis showed that age,serum uric acid,24 h urine protein and carotid artery intima-media thickness were independent risk factors for eGFR decline [OR=1.115,95%CI(1.053,1.165),P < 0.001;OR=1.008,95%CI (1.002,1.014),P=0.006;OR=1.492,95% CI(1.170,1.903),P=0.001;OR=1.619,95% CI(1.121,2.339),P=0.010].Conclusion Carotid artery intima-media thickness is an independent risk factor for kidney function decline in patients of diabetes.
2.Expression and clinical significance of microRNA in the serum of patients with diabetic nephropathy
Gouqin WANG ; Jianqin WANG ; Yaojun LIANG ; Shenglin HE ; Pengming ZHAO ; Jinhua WANG
Chinese Journal of Nephrology 2015;31(7):503-508
Objective To investigate the expression and clinical significance of serum microRNA (miRNA) expression profiling in the occurrence and progression of diabetic nephropathy.Methods The miRNA expression profiling was detected by miRNA TaqMan Low Density Array chip from 10 patient with diabetic nephropathy,10 diabetes patients with normoalbuminuria and 10 health control.Real-time quantitative PCR was applied to verify the result of miRNA array in serum samples of 66 patients with diabetic nephropathy (36 patients with microalbuminuria,30 patients with macroalbuminuria),40 diabetes patients with normoalbuminuria and 40 health control.And the relationship of differetial expression with clinical features was analyzed.Results miR-150-5p,miR-155-5p,miR-30e-5p and miR-3196 being validated by real-time quantitative PCR differentially expressed in 3 groups of serum samples from the diabetes patients with microalbuminuria (n=36),with normoalbuminuria (n=40) and health control (n=40) (P < 0.05).Serum miR-150-5p (P=0.005) and miR-155-5p (P=0.006) changed significantly between diabetes patients with microalbuminuria (n=36) and with macroalbuminuria (n=30).Compared with the diabetes patients with microalbuminuria,serum miR-150-5p and miR-155-5p increased by 2.3 and 1.5 times in macroalbuminuria group,respectively.Estimated glomerular filtration rate and urinary albumin excretion rate significantly correlated with serum miR-150-5p and miR-155-5p level.Conclusions miR-150-5p and miR-155-5p may be involved in the process of pathological mechanisms of diabetic nephropathy.Serum miR-150-5p and miR-155-5p may be regarded as potential biomarkers to diagnosis the occurrence and development of diabetic nephropathy.
3.Analysis different transcriptional factors in different phenotype endometrial cancer cells
Pengming SUN ; Lihui WEI ; Lijun ZHAO ; Ning LIU ; Jianliu WANG ; Yiyi SONG ; Xianjing CHEN ; Hao LIN
Chinese Journal of Obstetrics and Gynecology 2009;44(3):209-213
Objective To analysis the activity of transcriptional factors in endometrial cancer cell lines with different estrogen receptor subtypes. Methods The mRNA levels of estrogen receptor (ER) was detected by quantitative RT-PCR , and the activity of transcriptional factors was also analysed by 345-channel protein/DNA array in RL-952 ( the expression status of ERα and ERβ both positive), HEC-1A [ERα(±),while ERβ negative] and HEC-1B (ERα and ERβ both negative). The transcription factors of NFkBp65 and p38MAPK with different activity were tested by enzyme-linked immunosorbent assay(ELISA) to confirm the results of protein/DNA array. Results The mRNA levels of ERα in RL-952, HEC-1A and HEC-1B were (6780±282 ), ( 684±84 ) and ( 168±38 ) eopy/ng, respectively. Among 345 candidate transcriptional factors, there were 28 factors associated with ER status. Compared with RL-952 cells, 13 transcriptional activity factors were concomitandy up-regulation, while 15 concomitantly down-regulation in HEC-1A and HEC-1B cells. Transcriptional activities of TrF (1)-1, NRF-1, TCE were significantly correlated with the high-expression status of ERα mRNA ( r =0.523, P=0.037 ), while RFX123 and Ikaros were signitleanfly correlated with the low-expression status of ERα mRNA ( r=-0.312, P=0.041 ). Conclusion Transcriptional factors of TTF(1)-1, NBF-1, TCE may be associated with ER-mediated signal pathway, while RFX123 and Ikaros may be associated with non ER-mediatecl signal pathway in endometrial cancer.
4.Exploratory study on quantitative analysis of nocturnal breathing patterns in patients with acute heart failure based on wearable devices.
Mengwei LI ; Yu KANG ; Yuqing KOU ; Shuanglin ZHAO ; Xiu ZHANG ; Lirui QIU ; Wei YAN ; Pengming YU ; Qing ZHANG ; Zhengbo ZHANG
Journal of Biomedical Engineering 2023;40(6):1108-1116
Patients with acute heart failure (AHF) often experience dyspnea, and monitoring and quantifying their breathing patterns can provide reference information for disease and prognosis assessment. In this study, 39 AHF patients and 24 healthy subjects were included. Nighttime chest-abdominal respiratory signals were collected using wearable devices, and the differences in nocturnal breathing patterns between the two groups were quantitatively analyzed. Compared with the healthy group, the AHF group showed a higher mean breathing rate (BR_mean) [(21.03 ± 3.84) beat/min vs. (15.95 ± 3.08) beat/min, P < 0.001], and larger R_RSBI_cv [70.96% (54.34%-104.28)% vs. 58.48% (45.34%-65.95)%, P = 0.005], greater AB_ratio_cv [(22.52 ± 7.14)% vs. (17.10 ± 6.83)%, P = 0.004], and smaller SampEn (0.67 ± 0.37 vs. 1.01 ± 0.29, P < 0.001). Additionally, the mean inspiratory time (TI_mean) and expiration time (TE_mean) were shorter, TI_cv and TE_cv were greater. Furthermore, the LBI_cv was greater, while SD1 and SD2 on the Poincare plot were larger in the AHF group, all of which showed statistically significant differences. Logistic regression calibration revealed that the TI_mean reduction was a risk factor for AHF. The BR_ mean demonstrated the strongest ability to distinguish between the two groups, with an area under the curve (AUC) of 0.846. Parameters such as breathing period, amplitude, coordination, and nonlinear parameters effectively quantify abnormal breathing patterns in AHF patients. Specifically, the reduction in TI_mean serves as a risk factor for AHF, while the BR_mean distinguishes between the two groups. These findings have the potential to provide new information for the assessment of AHF patients.
Humans
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Heart Failure/diagnosis*
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Prognosis
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Respiration
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Wearable Electronic Devices
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Acute Disease