The level of serum 25-Hydroxyvitamin D [25(OH)D] has high heritability, suggesting that genes may contribute to variations in serum 25(OH)D level and vitamin D dose-response. As vitamin D deficiency has been linked to numerous diseases, understanding how genetic variation contributes to vitamin D dose-response is important for personalized vitamin D treatment and cost-effective disease prevention. To identify genetic variants responsible for vitamin D status and dose-response, we performed two vitamin D3 and calcium clinical supplementation trials in 2,207 postmenopausal Caucasian women. We examined the association of 291 SNPs with baseline serum 25(OH)D levels and 25(OH)D dose-response. Five SNPs, rs10500804 (P = 4.93 × 10), rs2060793 (P = 6.63 × 10), rs10741657 (P = 1.49 × 10), rs10766197 (P = 1.05 × 10) and rs11023380 (P = 7.67 × 10) in the CYP2R1 gene, as well as 6 SNPs, rs4588 (P = 7.86 × 10), rs2298850 (P = 1.94 × 10), rs1155563 (P = 6.39 × 10), rs705119 (P = 2.80 × 10), rs705120 (P = 1.08 × 10) and rs222040 (P = 1.59 × 10) in the GC gene were associated with baseline serum 25(OH)D levels. SNP rs11185644 near the RXRA was significantly associated with 25(OH)D dose-response (P = 1.01 × 10). Our data suggest that polymorphisms in the CYP2R1 and GC gene may contribute to variation in baseline serum 25(OH)D concentration, and that polymorphism rs11185644 may contribute to variation in 25(OH)D dose-response in healthy postmenopausal Caucasian women.
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http://dx.doi.org/10.1038/srep40593 | DOI Listing |
Prz Gastroenterol
December 2024
Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland.
Introduction: Decreased bone mineral density (BMD) is one of the most frequent extraintestinal symptoms of celiac disease (CD).
Aim: The study aimed to investigate BMD, body composition, 25(OH)D, and ionised calcium blood parameters, and to compare them between women with CD and healthy individuals.
Material And Methods: The study covered 30 adult women with CD and 28 healthy controls.
Immun Inflamm Dis
January 2025
Department of Cardiology, Anqing First People's Hospital of Anhui Medical University, Anqing, China.
Background: Vitamin D is the focus of extensive medical research globally. Recent studies have investigated the correlation between serum 25-hydroxyvitamin D (25(OH)D) and common inflammatory markers. However, few studies have incorporated novel inflammatory markers such as the platelet-to-lymphocyte ratio (PLR), platelet-to-high density lipoprotein cholesterol ratio (PHR), systemic inflammatory index (SII), neutrophil-to-lymphocyte ratio (NLR), systemic inflammatory response (SIRI), and neutrophil-to-high-density lipoprotein cholesterol ratio (NHR).
View Article and Find Full Text PDFHeadache
January 2025
Service of Neurology, University Hospital Marqués de Valdecilla, Universidad de Cantabria and Valdecilla Research Institute (IDIVAL), Santander, Spain.
Background: Serum 25-hydroxyvitamin D (25[OH]D) concentrations have been shown to be low in patients with migraine, but results are controversial regarding the current role of vitamin D in migraine severity. Using a case-control design, we aimed to evaluate serum 25(OH)D levels in a group of females with high-frequency episodic migraine/chronic migraine (HF/CM) and analyze its association with headache frequency and serum calcitonin gene-related peptide (CGRP) levels.
Methods: Serum 25(OH)D levels were measured in 97 females with HF/CM (age 48.
Anal Bioanal Chem
January 2025
Chemical Sciences Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD, 20899, USA.
Commutability is where the measurement response for a reference material (RM) is the same as for an individual patient sample with the same concentration of analyte measured using two or more measurement systems. Assessment of commutability is essential when the RM is used in a calibration hierarchy or to ensure that clinical measurements are comparable across different measurement procedures and at different times. The commutability of three new Standard Reference Materials (SRMs) for determining serum total 25-hydroxyvitamin D [25(OH)D], defined as the sum of 25-hydroxyvitamin D [25(OH)D] and 25-hydroxyvitamin D [25(OH)D], was assessed through an interlaboratory study.
View Article and Find Full Text PDFJ Assist Reprod Genet
January 2025
Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, China.
Purpose: To assess the association of serum vitamin D level and the live birth rate in women undergoing frozen embryo transfer (FET).
Methods: This is a retrospective cohort study involving 1489 infertile women who had frozen embryo transfer at two tertiary reproductive medicine centres from 2019 to 2021. Only the first frozen embryo transfer was included for women who had repeated transfers during the period.
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