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3.
Thromb Haemost ; 117(5): 992-1001, 2017 05 03.
Article in English | MEDLINE | ID: mdl-28251236

ABSTRACT

Circulating microRNAs (miRNAs) have recently emerged as promising biomarkers for ischaemic stroke (IS). However, the expression patterns of specific miRNAs in transient ischaemic attack (TIA) patients have not been investigated. Their predictive values for the presence of IS and TIA and their relationships to the neurological deficit severity of IS and the subsequent stroke risk after TIA remain unclear exactly. In this study, 754 miRNAs were initially screened by the TaqMan Low Density Array (TLDA) in two pooled serum samples from 50 IS patients and 50 controls. Markedly altered miRNAs were subsequently validated by individual quantitative reverse-transcription PCR (qRT-PCR) assays first in the same cohort of TLDA and further confirmed in another larger cohort including 177 IS, 81 TIA patients and 42 controls. Consequently, TLDA screening showed that 71 miRNAs were up-regulated and 49 miRNAs were down-regulated in IS patients. QRT-PCR validation confirmed that serum levels of miR-23b-3p, miR-29b-3p, miR-181a-5p and miR-21-5p were significantly increased in IS patients. Strikingly, serum levels of miR-23b-3p, miR-29b-3p and miR-181a-5p were also significantly elevated in TIA patients. Furthermore, up-regulated miR-23b-3p, miR-29b-3p and miR-21-5p could clearly differentiate between IS and TIA patients. Logistic regression and receiver-operating characteristic curve analyses demonstrated that these altered miRNAs may function as predictive and discriminative biomarkers for IS and TIA, and their distinctive expression signatures may contribute to assessing neurological deficit severity of IS and subsequent stroke risk after TIA.


Subject(s)
Brain Ischemia/genetics , Circulating MicroRNA/genetics , Ischemic Attack, Transient/genetics , Stroke/genetics , Transcriptome , Aged , Area Under Curve , Brain Ischemia/blood , Brain Ischemia/diagnosis , Case-Control Studies , Chi-Square Distribution , Circulating MicroRNA/blood , Female , Gene Expression Profiling/methods , Genetic Markers , High-Throughput Nucleotide Sequencing , Humans , Ischemic Attack, Transient/blood , Ischemic Attack, Transient/diagnosis , Logistic Models , Male , Middle Aged , Multivariate Analysis , Odds Ratio , Oligonucleotide Array Sequence Analysis , Predictive Value of Tests , ROC Curve , Reproducibility of Results , Reverse Transcriptase Polymerase Chain Reaction , Stroke/blood , Stroke/diagnosis
4.
Nan Fang Yi Ke Da Xue Xue Bao ; 36(10): 1382-1385, 2016 Oct 20.
Article in Chinese | MEDLINE | ID: mdl-27777202

ABSTRACT

OBJECTIVE: To analyze serum levels of non-esterified fatty acids (NEFA) and albumin (ALB) in children with nephrotic syndrome (NS) and investigate the clinical significance of altered serum NEFA to ALB ratio in children with NS in acute and remission phases. METHODS: Serum levels of NEFA and ALB were measured in 55 NS children in acute phase, in 33 NS children in remission and in 122 healthy control children, and the ratio of NEFA to ALB was calculated. The other lipid/lipoprotein and renal function parameters were also analyzed in these children. RESULTS: Compared with the healthy control children, children with NS had a significantly decreased serum ALB level (t=11.152, P<0.001) and a significantly increased NEFA to ALB ratio (t=4.991, P<0.001). Compared with NS children in remission, those in acute phase showed a significantly decreased ALB (Z=7.822, P<0.001) and an increased NEFA to ALB ratio (t=4.991, P<0.001). In all the NS children, NEFA to ALB ratio was positively correlated with the levels of TC (r=0.564, P<0.001), TG (r=0.444, P<0.001), LDL-C (r=0.625, P<0.001), urea (r=0.437, P<0.001), creatinine (r=0.278, P=0.013), and uric acid (r=0.397, P<0.001), while negatively correlated with the level of total protein (r=-0.461, P<0.001). Multiple linear regression analyses showed that NEFA to ALB ratio was independently associated with serum urea levels (ß=0.703, P=0.001; adjusted R2=0.494) after adjustment of other related factors. CONCLUSION: Serum NEFA to ALB ratio is significantly increased in NS children in close association with impaired kidney function, and may function as a novel parameter for assessing the development of NS.


Subject(s)
Fatty Acids, Nonesterified/blood , Nephrotic Syndrome/blood , Serum Albumin, Human/analysis , Case-Control Studies , Child , Humans , Regression Analysis
5.
Guang Pu Xue Yu Guang Pu Fen Xi ; 32(7): 1909-12, 2012 Jul.
Article in Chinese | MEDLINE | ID: mdl-23016351

ABSTRACT

The authors deduced Gaussian function of millimeter wave power distribution, and built up a transient thermal multilayer model for the heating of murine skin by high power millimeter waves with finite volume method (FVM) based on HBHE in the present paper. We analyzed the calculated results and compared them with the results calculated by Pennes' equation and the experimental ones; found that the temperature calculated by HBHE was more reasonable. Especially under high power millimeter wave, the calculated results were basically consistent with the experimental ones, and the superiority of the theoretical model was confirmed.


Subject(s)
Skin Temperature , Animals , Mice , Microwaves , Models, Biological , Models, Theoretical , Skin
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