The circulating microRNAs (miRNAs) associated with type 2 diabetes (T2D) in elderly patients are still being defined. To identify novel miRNA biomarker candidates for monitoring responses to sitagliptin in such patients, we prospectively studied 40 T2D patients (age > 65) with HbA1c levels of 7.5-9.0% on metformin. After collection of baseline blood samples (), the dipeptidyl peptidase-IV (DPP-IV) inhibitor (DPP-IVi) sitagliptin was added to the metformin regimen, and patients were followed for 15 months. Patients with HbA1c < 7.5% or HbA1c reduction > 0.5% after 3 and 15 months of therapy were classified as "responders" (group R, = 34); all others were classified as "nonresponders" (group NR, = 6). Circulating miRNA profiling was performed on plasma collected in each group before and after 15 months of therapy ( and ). Intra- and intergroup comparison of miRNA profiles pinpointed three miRNAs that correlated with responses to sitagliptin: miR-378, which is a candidate biomarker of resistance to this DPP-IVi, and miR-126-3p and miR-223, which are associated with positive responses to the drug. The translational implications are as immediate as evident, with the possibility to develop noninvasive diagnostic tools to predict drug response and development of chronic complications.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5914089 | PMC |
| http://dx.doi.org/10.1155/2018/6872635 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
MicroRNA Expression Profile in Acute Ischemic Stroke.
Int J Mol Sci
January 2025
Department of Neurology, Virginia Commonwealth University, Richmond, VA 23298, USA.
Acute ischemic stroke with large vessel occlusion (LVO) continues to present a considerable challenge to global health, marked by substantial morbidity and mortality rates. Although definitive diagnostic markers exist in the form of neuroimaging, their expense, limited availability, and potential for diagnostic delay can often result in missed opportunities for life-saving interventions. Despite several past attempts, research efforts to date have been fraught with challenges likely due to multiple factors, such as the inclusion of diverse stroke types, variable onset intervals, differing pathobiologies, and a range of infarct sizes, all contributing to inconsistent circulating biomarker levels.
View Article and Find Full Text PDFCharacterizing Circulating microRNA Signatures of Type 2 Diabetes Subtypes.
Int J Mol Sci
January 2025
College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai P.O. Box 505055, United Arab Emirates.
Type 2 diabetes (T2D) is a heterogeneous disease influenced by both genetic and environmental factors. Recent studies suggest that T2D subtypes may exhibit distinct gene expression profiles. In this study, we aimed to identify T2D cluster-specific miRNA expression signatures for the previously reported five clinical subtypes that characterize the underlying pathophysiology of long-standing T2D: severe insulin-resistant diabetes (SIRD), severe insulin-deficient diabetes (SIDD), mild age-related diabetes (MARD), mild obesity-related diabetes (MOD), and mild early-onset diabetes (MEOD).
View Article and Find Full Text PDFLiquid Biopsy and Multidisciplinary Treatment for Esophageal Cancer.
Cancers (Basel)
January 2025
Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan.
Esophageal cancer (EC) is one of the leading causes of cancer-related deaths globally. Surgery is the standard treatment for resectable EC after preoperative chemoradiotherapy or chemotherapy, followed by postoperative adjuvant chemotherapy in certain cases. Upper gastrointestinal endoscopy and computed tomography (CT) are predominantly performed to evaluate the efficacy of these treatments, but their sensitivity and accuracy for evaluating minimal residual disease remain unsatisfactory, thereby requiring the development of alternative methods.
View Article and Find Full Text PDFEarly Myocardial Strain Reduction and miR-122-5p Elevation Associated with Interstitial Fibrosis in Anthracycline-Induced Cardiotoxicity.
Biomedicines
December 2024
Cardiovascular Pathophysiology Group, Institute of Biomedicine of Seville-IBiS, University of Seville/Hospital Universitario Virgen de Rocio/CSIC, 41013 Seville, Spain.
Unlabelled: Echocardiographic myocardial strain is crucial for early detection of anthracycline-induced cardiotoxicity, particularly in patients at moderate or high risk.
Background/objectives: This study investigates changes in global longitudinal strain (GLS) in breast cancer patients with low baseline risk for cardiotoxicity during cancer therapy. We also examined the relationship between echocardiographic strain, structural myocardial changes, and microRNA (miRNA) dysregulation associated with cancer treatment using an animal model.
Limited Diagnostic Value of miRNAs in Early Trauma-Induced Liver Injury: Only miRNA-122 Emerges as a Late-Phase Marker.
Diagnostics (Basel)
January 2025
Department of Trauma Surgery and Orthopedics, University Hospital Frankfurt, Goethe University Frankfurt, 60596 Frankfurt am Main, Germany.
: Liver injury is common after abdominal trauma. However, the established biomarkers of liver injury, such as alanine aminotransferase (ALT) and aspartate aminotransferase (AST), lack accuracy. This study investigates whether specific liver-related microRNAs (miRNAs) are released into the circulation in trauma patients with liver injury and whether they can indicate liver damage in the early phase after major trauma.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!