Influence of vitamin D on the expression of mRNA of cytokines in the mucosa of inflammatory bowel disease patients
BRATISLAVA MEDICAL JOURNAL-BRATISLAVSKE LEKARSKE LISTY
Authors: Vrablicova, Z.; Soltys, K.; Krajcovicova, A.; Sturdik, I; Koller, T.; Huorka, M.; Payer, J.; Stuchlik, S.; Killinger, Z.; Jackuliak, P.; Stuchlikova, M.; Drahovska, H.; Hlavaty, T.
Abstract
The aim of this study was to analyze the influence of 25(OH)VD serum concentration on the expression of mRNA cytokines (IL-6, IL-8, IL-12, IL-17, IL-23, TNF alpha, CCR1, CCR2, CCR5, CCR9, CCL5, TLR2, TLR4, TLR5, CD207 ,CD206, FoxP3) in mucosa of IBD patients. The cohort consisted of 86 IBD patients (48 CD and 38 UC) followed at the IBD center of University Hospital Bratislava-Ruzinov. We performed colonoscopy in each patient and took biopsies from mucosa of sigma and terminal ileum. Serum concentration of 25(OH)VD was assessed at the time of colonoscopy. mRNA was extracted from mucosal biopsy samples for each cytokine. Then we analyzed the correlation between VD and the expression of mRNA of cytokines from biopsies samples. In CD we observed a significant positive correlation of serum concentration 25(OH)VD and the expression mRNA level of IL-6. There was also trend towards significant positive correlation of the expression mRNA of TNF alpha, IL-10, IL-23, TLR 2 in inflamed mucosa of terminal ileum as well as the expression mRNA of CCR5 and CCR1 in non-inflamed mucosa from terminal ileum. We also found a trend towards positive correlation between 25(OH)VD and the expression mRNA of IL-23, TLR4, CD 207, CCR1, CCR5 and CD 206 in non-inflamed mucosa of sigma in UC. VD significantly correlated with the levels of expression of several inflammatory cytokines including TNF alpha in colonic mucosa of patients with IBD (Tab. 4, Fig. 3, Ref. 31). Text in PDF www.elis.sk.
Genome-Wide Analysis of Seed Acid Detergent Lignin (ADL) and Hull Content in Rapeseed (Brassica napus L.)
PLOS ONE
Authors: Wang, Jia; Jian, Hongju; Wei, Lijuan; Qu, Cunmin; Xu, Xinfu; Lu, Kun; Qian, Wei; Li, Jiana; Li, Maoteng; Liu, Liezhao
Abstract
A stable yellow-seeded variety is the breeding goal for obtaining the ideal rapeseed (Brassica napus L.) plant, and the amount of acid detergent lignin (ADL) in the seeds and the hull content (HC) are often used as yellow-seeded rapeseed screening indices. In this study, a genome-wide association analysis of 520 accessions was performed using the Q + K model with a total of 31,839 single-nucleotide polymorphism (SNP) sites. As a result, three significant associations on the B. napus chromosomes A05, A09, and C05 were detected for seed ADL content. The peak SNPs were within 9.27, 14.22, and 20.86 kb of the key genes BnaA. PAL4, BnaA. CAD2/BnaA. CAD3, and BnaC. CCR1, respectively. Further analyses were performed on the major locus of A05, which was also detected in the seed HC examination. A comparison of our genome-wide association study (GWAS) results and previous linkage mappings revealed a common chromosomal region on A09, which indicates that GWAS can be used as a powerful complementary strategy for dissecting complex traits in B. napus. Genomic selection (GS) utilizing the significant SNP markers based on the GWAS results exhibited increased predictive ability, indicating that the predictive ability of a given model can be substantially improved by using GWAS and GS.