scholarly journals Single nucleotide polymorphisms at interleukin (IL)-1β + 3954 and vitamin D receptor (VDR) TaqI in chronic periodontitis patients: A pilot study in North Indian population

Author(s):  
Anika Daing ◽  
MohammadAkhlaq Khan ◽  
SarvendraVikram Singh ◽  
CharanjeetSingh Saimbi ◽  
SrikantaKumar Rath
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Maria Zacharioudaki ◽  
Ippokratis Messaritakis ◽  
Emmanouil Galanakis

AbstractThe role of vitamin D in innate and adaptive immunity is recently under investigation. In this study we explored the potential association of genetic variances in vitamin D pathway and infections in infancy. Τhis prospective case–control study included infants 0–24 months with infection and age-matched controls. The single nucleotide polymorphisms of vitamin D receptor (VDR) gene (BsmI, FokI, ApaI, TaqI), vitamin D binding protein (VDBP) (Gc gene, rs7041, rs4588) and CYP27B1 (rs10877012) were genotyped by polymerase chain reaction-restriction fragment length polymorphism. In total 132 infants were enrolled, of whom 40 with bacterial and 52 with viral infection, and 40 healthy controls. As compared to controls, ΤaqI was more frequent in infants with viral infection compared to controls (p = 0.03, OR 1.96, 95% CI 1.1–3.58). Moreover, Gc1F was more frequent in the control group compared to infants with viral infection (p = 0.007, OR 2.7, 95% CI 1.3–5.6). No significant differences were found regarding the genetic profile for VDR and VDBP in infants with bacterial infection compared to the controls and also regarding CYP27B1 (rs10877012) between the studied groups. Genotypic differences suggest that vitamin D pathway might be associated with the host immune response against viral infections in infancy.


2015 ◽  
Vol 5 (4) ◽  
pp. 121-126
Author(s):  
Shruti Singh ◽  
Kiran Singh ◽  
Manisha Sachan

  DNMT3A and DNMT3B are de novo methyltransferases which are responsi-ble for de novo methylation patterns of the unmethylated DNA. Two Single nucleotide polymorphisms (SNPs) in these genes i.e. -448A>G in DNMT3A and C46359T in DNMT3B, contribute a lot to the genetic susceptibility to breast cancer. In the present study, we analyzed the genotype frequencies of -448A>G polymorphism of DNMT3A and C46359T polymorphism of DNMT3B in breast cancer patients and healthy control subjects to explore the associa-tion of these single nucleotide polymorphisms with susceptibility to develop breast carcinoma. Genotyping was done by PCR-RFLP. 74 patients and 76 controls were genotyped for the DNMT3A (-448A>G) SNP, whereas 72 pa-tients and 107 controls were screened for DNMT3B (C46359T) polymor-phism. Our study clearly suggest that compared to GG carriers, the DNMT3A-448AA homozygotes had a 2.92 fold risk of developing breast carcinoma whereas for DNMT3B (C46359T) polymorphism, CT & CT+CC genotype carri-ers showed a 1.32 & 1.23 fold risk of developing breast carcinoma respec-tively. In Conclusion, DNMT3A SNP -448A>G contributes to genetic suscepti-bility to breast carcinoma whereas DNMT3B SNP C46359T was not found to be associated with pathogenesis of breast cancer in north Indian population.


2019 ◽  
Vol 16 (1) ◽  
pp. 84-94
Author(s):  
Aakash Reddy ◽  
Katari Venkatesh ◽  
Sayani Sahu ◽  
Pallavi Sinha Roy ◽  
Konkona Datta ◽  
...  

Background: The Fat mass and obesity-associated gene (FTO) and its involvement in weight gain and obesity is well-known. However, no reports have been published on the Indian population regarding the relationship between single nucleotide polymorphisms (SNPs) in its intronic region and obesity. The aim of this pilot study was to evaluate the frequency and association of SNPs in intron-1 of the FTO gene in obese and overweight Indian adults. Methods: This study group consisted of 80 adults, aged 23.5 ± 8.9 yr, with a mean BMI of 28.8 ± 6.2 kg/m2. Genomic DNA was isolated, exons1-3 & intron1 of FTO were amplified using polymerase chain reaction and sequenced by ABI sequencing detection system. The reported SNPs rs1420185, rs8050136, rs1121980 and rs55872725 were checked for their presence or absence in this group of the adult Indian population. Results: No mutations were found in the exonic sequence of FTO, however, the association of rs1420185, rs8050136, rs1121980 and rs55872725 SNPs was identified in this population. The genotypic frequency at FTO rs8050136 was 32.2% for C>A, at rs55872725 it was 45.7% for C>T, at rs1420185 it was 27.1% for T>C and at rs1121980 it was 30.5% for G>A. All four SNPs in combination were observed in 6 participants (10.2%), all of whom were found to be either obese or overweight. Conclusion: These findings indicate that Indians with these SNPs are most likely to be at increased risk of obesity.


2010 ◽  
pp. P1-179-P1-179
Author(s):  
AA Moheet ◽  
AA Khowaja ◽  
SA Jones ◽  
S Nazarian ◽  
T Keyler ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document