• Shally Awasthi

      Articles written in Journal of Genetics

    • Association of ADAM33 gene polymorphisms with adult-onset asthma and its severity in an Indian adult population

      Priya Tripathi Shally Awasthi Rajendra Prasad Nuzhat Husain Subramaniam Ganesh

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      ADAM33, a member of the ADAM (a disintegrin and metalloprotease) gene family, is an asthma susceptibility gene originally identified by positional cloning. In the present study, we investigated the possible association of five single-nucleotide polymorphisms (SNPs) in the ADAM33 (rs511898, rs528557, rs44707, rs597980 and rs2787094) with adult-onset asthma in an Indian population. The study included 175 patients with mild intermittent ($n = 44$), mild persistent ($n = 108$) or moderate persistent ($n = 23$) subgroups of asthma, and 253 nonasthmatic control individuals. SNPs were genotyped with the help of restriction fragment length polymorphism polymerase chain reaction (RFLP-PCR) method, and data were analysed using chi-square test and logistic regression model. Bonferroni’s correction for multiple comparisons was applied for each hypothesis. Genotypes and allele frequencies of SNPs rs511898 and rs528557 were significantly associated with adult-onset asthma ($P = 0.010-\lt 0.001$). A significant association of the homozygous mutant genotype and mutant alleles of SNPs rs2787094, rs44707 and rs597980 with the asthma was also observed ($P = 0.020-\lt 0.001$). A positive association between asthma and haplotypes AGCCT, GGCCT, AGACT, GCAGT, GGACT, ACCCC and AGACC were also found ($P = 0.036-\lt 0.001$, OR $= 2.07-8.49$). Haplotypes AGCGT, GCAGC, ACAGC, ACAGT, GGAGC and GGCGT appear to protect against asthma ($P = 0.013-\lt 0.0001$, OR $= 0.34-0.10$). Our data suggest that ADAM33 gene polymorphisms serve as genetic risk factors for asthma in Indian adult population.

    • K121Q ENPP1/PC-1 gene polymorphism is associated with insulin resistance in a north Indian population

      Jai Prakash Balraj Mittal Shally Awasthi C. G. Agarwal Neena Srivastava

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    • Role of MMP-1, MMP-8 and MMP-9 gene polymorphisms in preterm birth

      MONIKA PANDEY SHALLY AWASTHI

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      Novel approaches to preterm births are underway building upon our prior discoveries and probing into unknown discovery pathways. The recent findings showed a high affinity of MMP-9 in serum and its polymorphisms for preterm birth. This study, which is a hospital-based case–control study, aims to investigate the association of MMP-1, MMP-8 and MMP-9 polymorphisms, and levels of MMP-9 in preterm birth. Increased level of MMP-9 was reported in cases as compared to control. The significant association of MMP-9 (-1562) CT (P = 0.001; OR = 1.44(CI = 0.97–2.14)) and TTgenotype (P = 0.05;OR = 2.6 (CI = 1.46–4.69)) were reported in preterm birth. Our findings suggest that the MMP-9 plays an important role in contributing preterm labour and this can be used as a diagnostic tool during pregnancy.

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