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..
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Artikel |
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Erscheinungsjahr: |
2016 |
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Erschienen: |
2016 |
Enthalten in: |
Zur Gesamtaufnahme - volume:44 |
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Enthalten in: |
Infection - 44(2016), 5 vom: 20. Mai, Seite 633-640 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Rizvi, Imran [VerfasserIn] |
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Links: |
Volltext [lizenzpflichtig] |
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Themen: |
Single nucleotide polymorphisms |
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Anmerkungen: |
© Springer-Verlag Berlin Heidelberg 2016 |
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doi: |
10.1007/s15010-016-0907-x |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
OLC2051849870 |
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520 | |a 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. | ||
650 | 4 | |a Vitamin D | |
650 | 4 | |a Vitamin D receptor | |
650 | 4 | |a Toll like receptor 2 | |
650 | 4 | |a Single nucleotide polymorphisms | |
700 | 1 | |a Garg, Ravindra Kumar |4 aut | |
700 | 1 | |a Jain, Amita |4 aut | |
700 | 1 | |a Malhotra, Hardeep Singh |4 aut | |
700 | 1 | |a Singh, Arvind Kumar |4 aut | |
700 | 1 | |a Prakash, Shantanu |4 aut | |
700 | 1 | |a Kumar, Neeraj |4 aut | |
700 | 1 | |a Garg, Rajeev |4 aut | |
700 | 1 | |a Verma, Rajesh |4 aut | |
700 | 1 | |a Mahdi, Abbas Ali |4 aut | |
700 | 1 | |a Sharma, Praveen Kumar |4 aut | |
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