scholarly journals Vitamin D receptor polymorphisms in overweight/obese chronic kidney disease patients undergoing hemodialysis

2021 ◽  
Author(s):  
Gokhan Bagci ◽  
Can Huzmeli ◽  
Ferhan Candan
Keyword(s):  
Chronic Kidney Disease ◽  
Vitamin D ◽  
Kidney Disease ◽  
Vitamin D Receptor ◽  
Laboratory Data ◽  
Normal Weight ◽  
Nucleotide Polymorphisms ◽  
Vdr Gene ◽  
Pcr Rflp

Background: Many studies were carried out to investigate the relationship between single nucleotide polymorphisms (SNPs) in vitamin D receptor (VDR) gene with obesity. However, little is known about the role of VDR gene polymorphism with obesity in hemodialysis (HD) patients. Therefore, we aimed to investigate VDR gene TaqI, ApaI and FokI SNPs in overweight/obese HD patients. Methods: Seventy one normal weight and 68 overweight/obese HD patients were included in study. PCR-RFLP method was used for genotyping. Demographic and laboratory data obtained from medical records of patients. Results: For all three SNPs, no significant association was found between normal and overweight/obese patients (P>0.05). Lower HDL concentrations and higher levels of triglyceride (TG) and glucose were detected in the obese/overweight patients compared to normal weight (p<0.001 for HDL, and TG and p=0.023 for glucose). In obese/overweight patients, subjects with CC genotype of TaqI showed higher PTH level (717.1±616.4 pg/ml) than those TC genotype (342.7±360.8 pg/ml) and TT genotype (310.2±323.4 pg/ml) (p=0.028); higher TG level was found in patients with CC genotype of ApaI (627.3±653.0 mg/dl) compared to AA (223.3±156.6) and AC genotypes (193.1±85.4) (p<0.001). Obese/overweight patients carrying FokI TT genotype had higher glucose concentration compared to those carrying CC and CT genotypes (CC=183.4±128.4 mg/dl; TT=151.9±66.1 mg/dl; CT=107.6±41.9 mg/dl, p=0.008). Conclusions: Our study suggest that VDR TaqI, ApaI and FokI polymorphisms are not associated with obesity in HD patients. However, they might be increase the risk of secondary hyperparathyroidism, dyslipidemia, and hyperglycemia, which are among the most common obesity related comorbidities of chronic kidney disease.

scholarly journals Association of the polymorphism of the vitamin D receptor gene (VDR) with the risk of leprosy in the Brazilian Amazon

2021 ◽  
Author(s):  
Jasna Letícia Pinto Paz ◽  
Maria do Perpétuo Socorro Corrêa Amador Silvestre ◽  
Letícia Siqueira Moura ◽  
Ismari Perini Furlaneto ◽  
Yan Corrêa Rodrigues ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Receptor ◽  
Genetic Factors ◽  
Receptor Gene ◽  
Mycobacterium Leprae ◽  
Nucleotide Polymorphisms ◽  
Vdr Gene ◽  
Single Nucleotide ◽  
The Relationship

The transmission and evolution of leprosy depends on several aspects, including immunological and genetic factors of the host, as well as genetic factors of Mycobacterium leprae. This study evaluated the association of single nucleotide polymorphisms (SNPs) on the FokI (rs2228570), TaqI (rs731236), ApaI (rs7975232) regions of the vitamin D receptor (VDR) gene with leprosy. A total of 405 individuals were evaluated, composed by groups of 100 multibacillary and 57 paucibacillary patients, and 248 healthy contacts. Blood samples were collected from patients and contacts. The genotyping was performed by sequencing of the interest regions. The alleles of the studied SNPs, and of SNP FokI genotypes, were not associated with leprosy. For the SNP on TaqI region, the relationship between the tt genotype, and for the SNP ApaI, the AA genotype, revealed an association with susceptibility to MB form, while Aa genotype with protection. The extended genotypes AaTT and AaTt of ApaI and TaqI were associated with protection to against MB form. Futher studies analyzing the expression of the VDR gene and the correlation with its SNPs might help to clarify the role of polymorphisms on the immune response in leprosy.

scholarly journals Vitamin D Receptor (VDR) Gene Polymorphism in Patients Diagnosed with Colorectal Cancer

Nutrients ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 200
Author(s):  
Maria Latacz ◽  
Dominika Rozmus ◽  
Ewa Fiedorowicz ◽  
Jadwiga Snarska ◽  
Beata Jarmołowska ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Vitamin D ◽  
Environmental Factors ◽  
Gene Polymorphism ◽  
Vitamin D Receptor ◽  
Nucleotide Polymorphisms ◽  
Vdr Gene ◽  
Single Nucleotide ◽  
Pcr Rflp ◽  
Vdr Polymorphisms

Colorectal cancer (CRC) is one of the most commonly occurring neoplasias in humans. The prevalence of CRC rates is still rising. Although the exact background of the disease still remains unknown, it is believed that CRC may not only be a result of environmental factors, but also genetic ones. One of the mechanisms underlying CRC might be the vitamin D pathway, as CRC is the most closely linked neoplasia to vitamin D deficiency. This study shows a possible association of the vitamin D receptor (VDR) polymorphisms FokI, BsmI, ApaI, and TaqI with CRC susceptibility. A total of 103 patients diagnosed with CRC (61 men and 42 women, aged 57–82 years) and 109 healthy people (50 men and 59 women, aged 47–68 years) were genotyped using PCR-RFLP for FokI, BsmI, ApaI, and TaqI. None of the single nucleotide polymorphisms (SNPs) individually increased or decreased the risk of CRC. The evaluation of haplotypes revealed two that might enhance the likelihood of CRC development: taB (OR = 30.22; 95% CI 2.81–325.31; p = 0.01) and tAb (OR = 3.84; 95% CI 1.29–11.38; p = 0.01). In conclusion, genotyping is an easy and robust procedure that needs to be performed only once in a lifetime. A creation of a relevant SNP’s panel might contribute to the identification of the groups that are at the greatest risk of CRC.

Role of Vitamin D in Vascular Complications and Vascular Access Outcome in Patients with Chronic Kidney Disease

2016 ◽  
Vol 23 (17) ◽  
pp. 1698-1707 ◽  
Author(s):  
Domenico Santoro ◽  
Vincenzo Pellicanò ◽  
Valeria Cernaro ◽  
Viviana Lacava ◽  
Antonio Lacquaniti ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Vitamin D ◽  
Kidney Disease ◽  
Vascular Access ◽  
Vascular Complications

Vitamin D Metabolism and Potential Effects of Vitamin D Receptor Modulation in Chronic Kidney Disease

2017 ◽  
Vol 18 (7) ◽  
Author(s):  
Antonio Bellasi ◽  
Andrea Galassi ◽  
Michela Mangano ◽  
Luca Di Lullo ◽  
Mario Cozzolino
Keyword(s):  
Chronic Kidney Disease ◽  
Vitamin D ◽  
Kidney Disease ◽  
Vitamin D Receptor ◽  
Vitamin D Metabolism ◽  
Receptor Modulation

scholarly journals Role of Vitamin D in Chronic Kidney Disease

2009 ◽  
Vol 29 (2) ◽  
pp. 113-121 ◽  
Author(s):  
Tejas V. Patel ◽  
Ajay K. Singh
Keyword(s):  
Chronic Kidney Disease ◽  
Vitamin D ◽  
Kidney Disease

Vitamin D receptor activation raises soluble thrombomodulin levels in chronic kidney disease patients: a double blind, randomized trial

2018 ◽  
Vol 34 (5) ◽  
pp. 819-824 ◽  
Author(s):  
Graziella D’arrigo ◽  
Patrizia Pizzini ◽  
Sebastiano Cutrupi ◽  
Rocco Tripepi ◽  
Giovanni Tripepi ◽  
...  
Keyword(s):  
Chronic Kidney Disease ◽  
Vitamin D ◽  
Kidney Disease ◽  
Randomized Trial ◽  
Vitamin D Receptor ◽  
Receptor Activation ◽  
Double Blind ◽  
Soluble Thrombomodulin

scholarly journals The Role of Vitamin D Receptor Gene Polymorphisms in Colorectal Cancer Risk

Cancers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1379
Author(s):  
Ippokratis Messaritakis ◽  
Asimina Koulouridi ◽  
Maria Sfakianaki ◽  
Konstantinos Vogiatzoglou ◽  
Nikolaos Gouvas ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Vitamin D ◽  
Vitamin D Receptor ◽  
Bacillus Stearothermophilus ◽  
Receptor Gene ◽  
Stage Iv ◽  
Colorectal Carcinogenesis ◽  
Thermus Aquaticus ◽  
Vdr Gene

Vitamin D deficiency has been associated with increased colorectal cancer (CRC) incidence risk and mortality. Vitamin D mediates its action through the binding of the vitamin D receptor (VDR), and polymorphisms of the VDR might explain these inverse associations. The aim of the study was the investigation of the relevance of rs731236; Thermus aquaticus I (TaqI), rs7975232; Acetobacter pasteurianus sub. pasteurianus I (ApaI), rs2228570; Flavobacterium okeanokoites I (FokI) and rs1544410, Bacillus stearothermophilus I (BsmI) polymorphisms of the VDR gene to colorectal carcinogenesis (CRC) and progression. Peripheral blood was obtained from 397 patients with early operable stage II/III (n = 202) and stage IV (n = 195) CRC. Moreover, samples from 100 healthy donors and 40 patients with adenomatous polyps were also included as control groups. Genotyping in the samples from patients and controls was performed using polymerase chain reaction-restriction fragment length polymorphisms (PCR-RFLP). A significant association was revealed between all four polymorphisms and cancer. Individuals with homozygous mutant (tt, aa, ff or bb) genotypes were more susceptible to the disease (p < 0.001). All of the mutant genotypes detected were also significantly associated with stage IV (p < 0.001), leading to significantly decreased survival (p < 0.001). Moreover, all four polymorphisms were significantly associated with KRAS (Kirsten ras oncogene) mutations and Toll-like receptor (TLR2, TLR4 and TLR9) genetic variants. In multivariate analysis, tt, aa and ff genotypes emerged as independent factors associated with decreased overall survival (OS) (p = 0.001, p < 0.001 and p = 0.001, respectively). The detection of higher frequencies of the VDR polymorphisms in CRC patients highlights the role of these polymorphisms in cancer development and progression.

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