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Updated: Jun 22, 2025

Perturbations of Circulating miRNAs in Irritable Bowel Syndrome Detected Using a Multiplexed High-throughput Gene Expression Platform
Published on: November 30, 2016
EXPRESSION PROFILES OF MIR-155-5P AND MIR-518B MICRORNAS IN CIRCULATING LEUKOCYTES OF THE PREGNANT PATIENTS WITH
M Hocaoglu1, S Demirer2, I Loclar Karaalp1
1Goztepe Prof Dr. Suleyman Yalcin City Hospital Affiliated to Istanbul Medeniyet University, Department of Obstetrics and Gynecology.
Context:
Polycystic ovary syndrome (PCOS) is associated with increased prevalence of preeclampsia (PE); microRNAs (miRs) could play an important role in the pathogenesis of PE and PCOS.
Objective:
To investigate the expression levels of miRs 155-5p and 518b in blood leukocytes of patients with PE and PCOS.
Design:
Using real-time quantitative PCR method, miR-155-5p and miR-518b were examined from PE, PCOS, PE+PCOS, and controls.
Subjects And Methods:
The relative expression of the target miRs in patient samples was compared to control samples. The results were calculated as relative quantification values.
Results:
Confounding variables were controlled using analyses for covariance. Significant differences were observed in miR-155-5p (p=0.008) and miRNA-518 (p=0.016) expression levels among the groups. miR-155-5p (p=0.014) and miR-518b (p=0.036) were upregulated in PCOS patients and miR-518b (p=0.028) were increased in cases with PCOS+PE. Near significant difference was found (p=0.06) in miR-518b expression levels in cases with PE, compared to controls. miR-518b was observed to be positively correlated with alanine transaminase in cases with PE (r=0.80; P=0.017) and PE+PCOS (r=0.80, p=0.017).
Conclusions:
Our preliminary findings suggested that expression profiling of miR-155-5p and miR-518b in blood leukocytes were upregulated in pregnant women with PCOS. Moreover, miR-518b was found to be related to PE in cases with PCOS.

