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1.
Biol Res Nurs ; 21(1): 107-113, 2019 01.
Article in English | MEDLINE | ID: mdl-30282476

ABSTRACT

BACKGROUND AND AIMS: C-reactive protein (CRP) is commonly used as a biomarker for inflammation. Mild elevations of CRP have been seen in chronic autoimmune diseases like systemic lupus erythematosus (SLE), and CRP has been linked to an increased risk of cardiovascular events. Diet quality and certain dietary factors seem to influence CRP levels in healthy subjects. To date, the effect of diet on serum CRP in SLE has not been studied. Our aim was to investigate the relationship between dietary nutrients, antioxidant intake, and serum CRP in SLE. DESIGN AND METHOD: A cross-sectional study was conducted among 91 patients with SLE. High-sensitivity hsCRP values were determined using an immuno-turbidimetry assay in a Beckman Coulter analyzer (AU5800). Dietary intake of macro- and micronutrients was assessed through a 24-hr diet recall. Antioxidant nutrient intake was evaluated using the dietary antioxidant quality score (DAQs). Linear regression models were used to investigate the relationships between serum hsCRP levels, dietary nutrient intake, and DAQs. RESULTS: The mean serum hsCRP level observed (3.76 ± 6.68 mg/L) was above the established normal range. However, participating SLE patients had low-quality diets, and we found no significant correlations between dietary intake of macro- or micronutrients or antioxidant nutrient intake (DAQs) and serum CRP levels. CONCLUSION: Our study reveals that participating SLE patients had a low-quality diet that did not influence inflammatory status measured using serum CRP levels. Further interventional studies with high-quality diets in this population are necessary to dissect the role of diet on CRP levels in SLE.


Subject(s)
Biomarkers/analysis , C-Reactive Protein/analysis , C-Reactive Protein/immunology , Diet , Energy Intake , Lupus Erythematosus, Systemic/immunology , Lupus Erythematosus, Systemic/physiopathology , Adult , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Spain
2.
Gene ; 640: 51-56, 2018 Jan 15.
Article in English | MEDLINE | ID: mdl-29032145

ABSTRACT

Vitamin D has been established as a key factor in the development of obesity through the vitamin D receptor (VDR). The aim of this study was to investigate the contribution of the VDR gene to obesity-related phenotypes in a population of Caucasian young adults. The study population consisted of 701 healthy Spanish young adults (mean age 20.41±2.48). Three single-nucleotide polymorphisms (SNPs) of VDR (TaqI, BsmI and FokI) were selected as genetic markers. Body composition measurements including weight, body mass index (BMI), fat mass (FM), percentage of fat mass (PFM), fat-free mass (FFM) and visceral fat level (VFL) were analysed. Differences in obesity traits across the genotypes were determined using analysis of covariance (ANCOVA). The FokI polymorphism showed a significant association with PFM across the whole population after adjusting for age and sex (p=0.022). Age-adjusted analysis revealed an association between body weight and the TaqI and BsmI SNPs in males (p=0.033 and p=0.028, respectively). However, these positive findings did not remain significant after applying the Bonferroni correction for multiple testing. Our findings suggest that VDR genetic variants are unlikely to play a major role in obesity-related phenotypes in a population of Caucasian young adults.


Subject(s)
Genetic Association Studies , Genetic Predisposition to Disease , Obesity/genetics , Polymorphism, Single Nucleotide , Receptors, Calcitriol/genetics , Adult , Body Mass Index , Female , Genetic Testing , Genotype , Humans , Male , Phenotype , Young Adult
3.
Osteoporos Int ; 27(3): 1057-1061, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26510844

ABSTRACT

SUMMARY: Bone mineral content is influenced by genetic factors. We investigated the role of WNT16 in bone properties determined using quantitative ultrasound (QUS) on young adults. Three WNT16 genetic markers (rs2908007, rs2908004, and rs2707466) were found to have a significant association with the broadband ultrasound attenuation (BUA) measurement, suggesting that WNT16 influences bone mass in young adults. INTRODUCTION: The aim of this study was to investigate whether genetic markers on the WNT16 gene are associated with bone mass, as assessed using QUS in a population of healthy young Spanish adults. METHODS: A cross-sectional study was conducted on 575 individuals (mean age 20.41 ± 2.69). Bone quality was assessed using BUA measurements (dB/MHz) on the right calcaneus. Six single nucleotide polymorphisms (SNPs) (rs2908007, rs2908004, rs3801387, rs3801385, rs2707466, and rs2536184) covering the WNT16 gene were selected as genetic markers and genotyped to test their association with BUA variations. RESULTS: The rs2908007, rs2908004, and rs2707466 SNPs were found to have a significant association with BUA (p = 0.004, p = 0.001, and p = 0.004, respectively). CONCLUSION: We demonstrate for the first time that WNT16 genetic polymorphisms influence QUS traits in a population of young adults. This finding suggests that WNT16 might be an important genetic factor in determining peak bone mass acquisition.


Subject(s)
Calcaneus/diagnostic imaging , Polymorphism, Single Nucleotide , Wnt Proteins/genetics , Adolescent , Bone Density/genetics , Calcaneus/physiology , Cross-Sectional Studies , Female , Gene Frequency , Genetic Markers/genetics , Genotype , Genotyping Techniques/methods , Humans , Male , Ultrasonography/methods , Young Adult
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