Vitamin D status, vitamin D receptor and toll like receptor-2 polymorphisms in tuberculous meningitis: a case–control study

Introduction Vitamin D levels and genetic factors, vitamin D receptor (VDR) and Toll like receptor- 2 (TLR-2) gene single nucleotide polymorphisms (SNPs), determine susceptibility to pulmonary tuberculosis. We aimed to evaluate vitamin D deficiency, VDR and TLR-2 gene SNPs in tuberculous meningitis (TBM). Methods This case–control study included 130 subjects each in three arms (TBM, pulmonary tuberculosis and healthy control). This study was performed in a large tertiary care institution of North India. Subjects were enrolled from August 2013 to July 2015. Vitamin D levels were measured using enzyme immunoassay. SNPs in VDR and TLR-2 gene were assessed using polymerase chain reaction-sequencing method. TBM patients were followed for 6 months. Results Vitamin D deficiency was significantly more common in TBM compared to controls and pulmonary tuberculosis (TBM versus controls p < 0.001; TBM versus pulmonary tuberculosis p < 0.001). The heterozygous (TC) and mutant (CC) genotypes of Taq1 VDR SNP were significantly associated with TBM as compared to controls [TC; p < 0.001, odds ratio (OR) = 3.53 (1.95–6.40); CC; p = 0.002 OR = 5.97 (1.89–18.84)]. The heterozygous genotypes were significantly associated with TBM as compared with pulmonary tuberculosis [p = 0.001; OR = 2.53(1.43–4.45)]. Heterozygous (TG) and mutants (GG) forms of Apa1 VDR SNPs were significantly associated with TBM compared to controls [TG; p = 0.001, OR = 2.86 (1.58–5.17), GG; p = 0.002, OR = 5.11 (1.80–14.54)] and pulmonary tuberculosis. There was no significant difference in the frequency of TLR-2 SNPs. No association was found between outcome of TBM and vitamin D deficiency, VDR or TLR-2 SNPs. Conclusion Vitamin D deficiency and VDR polymorphisms are associated with the susceptibility of TBM..

Medienart:

E-Artikel

Erscheinungsjahr:

2016

Erschienen:

2016

Enthalten in:

Zur Gesamtaufnahme - volume:44

Enthalten in:

Infection - 44(2016), 5 vom: 20. Mai, Seite 633-640

Sprache:

Englisch

Beteiligte Personen:

Rizvi, Imran [VerfasserIn]
Garg, Ravindra Kumar [VerfasserIn]
Jain, Amita [VerfasserIn]
Malhotra, Hardeep Singh [VerfasserIn]
Singh, Arvind Kumar [VerfasserIn]
Prakash, Shantanu [VerfasserIn]
Kumar, Neeraj [VerfasserIn]
Garg, Rajeev [VerfasserIn]
Verma, Rajesh [VerfasserIn]
Mahdi, Abbas Ali [VerfasserIn]
Sharma, Praveen Kumar [VerfasserIn]

Links:

Volltext [lizenzpflichtig]

Themen:

Single nucleotide polymorphisms
Toll like receptor 2
Vitamin D
Vitamin D receptor

Anmerkungen:

© Springer-Verlag Berlin Heidelberg 2016

doi:

10.1007/s15010-016-0907-x

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC2104722675

Zugang & Verfügbarkeit




Zugehörige Publikationen/Bände

    Haven't found what you're looking for?