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Introduction: Observational studies have identified associations between hematological traits and type-2 diabetes mellitus (T2D). However, it is difficult to infer causal effects due to the potential of confounding. Our study utilizes the Mendelian randomization (MR) approach to address the above limitation and investigate the causal effect of hematological traits such as white blood cell (WBC), platelets (PLT), and red blood cell (RBC) on T2D in individuals of African ancestry.
Methods: The participating cohorts included participants of African ancestry in the Blood Cell consortium and the Million Veteran Program dataset. Using GWAS summary statistics, we applied a univariable and multivariable Two-sample MR to estimate the causal relationship between hematological traits and T2D.
Results: In the main IVW MR estimates, genetically predicted levels of mean corpuscular hemoglobin concentration (MCHC), mean corpuscular hemoglobin (MCH), and mean corpuscular volume (MCV) were associated with decreased risk of T2D. We also observed a decreased risk of T2D with genetically predicted total WBC count and neutrophil count (NEU), for the WBC traits. The multivariable analysis further supported the direct associations of genetically predicted MCH, MCHC, and MCV levels with a decreased risk of T2D. For the European ancestry, a similar pattern of association was observed for MCH and MCV.
Discussion: These findings indicate that hematological traits may differentially play a role in the development of T2D and be affected by T2D. However, further research is needed to validate and explore the biological pathways and mechanisms involved in these associations.
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http://dx.doi.org/10.3389/fphar.2025.1436972 | DOI Listing |
Clin Chim Acta
September 2025
Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, University of Jaffna, Jaffna 40000, Sri Lanka. Electronic address:
Screening for β-thalassemia trait (βTT) is crucial for preventing β-thalassemia major in offspring. Although hematological discrimination formulae (HDF), developed using complete blood count parameters, are cost-effective tools for screening βTT, their performance varies across different populations. This study evaluated the performance of 32 HDF for screening βTT in the Sri Lankan population.
View Article and Find Full Text PDFPoult Sci
August 2025
Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt.
This study aimed to assess the effect of supplementing Arbor Acre broiler chick diets with a blend of peppermint and clove oils on growth efficiency, blood indicators, and intestinal microbial communities. In a randomized experimental design, 250 unsexed, one-day-old Arbor Acre broiler chicks were allocated into 5 groups. Each group included 5 replicates, each containing 10 birds.
View Article and Find Full Text PDFJ Gene Med
September 2025
Genetic Center, Department of Medical Research, China Medical University Hospital, Taichung, Taiwan.
Background: Elevated serum levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) are biomarkers of liver dysfunction and predictors of cirrhosis and liver cancer. While European-ancestry GWAS have identified hundreds of loci influencing these enzymes and driven drug discovery and personalized interventions, comparable genetic studies in Han Taiwanese and other East Asian populations remain lacking.
Methods: We performed GWAS of ALT (n = 137,312) and AST (n = 111,527) in Han Taiwanese to characterize liver enzyme genetics.
Cureus
July 2025
Department of Medicine, Sickle Cell Division, Kings County Hospital Center, Brooklyn, USA.
Pulmonary hypertension (PH) is a serious and increasingly recognized complication in sickle cell disease (SCD), particularly in individuals with the homozygous genotype. Elevated tricuspid regurgitant velocity (TRV) increases the potential for future development of PH, yet no standardized management approach currently exists, likely because of the varied pathophysiology of PH in these patients. Transthoracic echocardiogram-derived elevated TRV of more than 2.
View Article and Find Full Text PDFPeerJ
September 2025
Department of Field Crops/Faculty of Agriculture, Çanakkale Onsekiz Mart University, Canakkale, Center, Turkey.
Context: Sustainable livestock production depends on efficient pasture management and the continuous monitoring of the health of grazing animals.
Objectives: This study investigated the effects of pasture types and sheep production systems on the hematological traits of Karacabey Merino (German Mutton Merino × Kıvırcık) ewes and lambs grazing on different pasture types throughout the year and reared in a semi-intensive system (control group).
Methods: In this twenty-six-month study, the hematological characteristics of ewes and lambs grazing on natural pastures and in spring (triticale and oat grass pasture), summer (sorghum Sudangrass and wheat stubble pasture), and autumn (triticale and oat grass pasture) were compared with ewes and lambs reared in a semi-intensive system (no pasture for lambs).