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Lack of association of Lysyl oxidase (LOX) gene polymorphisms with intracranial aneurysm in a south Indian population

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Abstract

Intracranial aneurysm (IA) accounts for 85 % of haemorrhagic stroke and is mainly caused due to weakening of arterial wall. Lysyl oxidase (LOX) is a cuproenzyme involved in cross linking structural proteins collagen and elastin, thus providing structural stability to artery. Using a case–control study design, we tested the hypothesis whether the variants in LOX gene flanking the two LD block, can increase risk of aSAH among South Indian patients, either independently, or by interacting with other risk factors of the disease. SNPs were genotyped by fluorescence-based competitive allele-specific PCR (KASPar) chemistry. We selected 200 radiologically confirmed aneurysmal cases and 235 ethnically and age and gender matched controls from the Dravidian Malayalam speaking population of South India. We observed marked interethnic differences in the genotype distribution of LOX variants when compared to Japanese and African populations. However, there was no significant association with any of the LOX variants with IA. This study also could not observe any significant role of LOX polymorphisms in influencing IA either directly or indirectly through its confounding factors such as hypertension and gender in South Indian population.

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Acknowledgments

SS acknowledges the Council of Scientific and Industrial Research CSIR), Government of India for providing junior research fellowship. We also acknowledge all the patients and their family members who cooperated in this study.

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Authors and Affiliations

  1. Human Molecular Genetics Laboratory, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, 695 014, Kerala, India

    Sanish Sathyan, Linda Koshy, K. R. Sarada Lekshmi & Moinak Banerjee

  2. Department of Neurosurgery, Sree Chitra Tirunal Institute for Medical Science and Technology, Thiruvananthapuram, India

    H. V. Easwer

  3. Department of Neurosurgery, Calicut Medical College, Calicut, India

    S. Premkumar, Jacob P. Alapatt, Suresh Nair & R. N. Bhattacharya

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  1. Sanish Sathyan
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  2. Linda Koshy
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  3. K. R. Sarada Lekshmi
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  4. H. V. Easwer
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  9. Moinak Banerjee
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Correspondence to Moinak Banerjee.

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Sathyan, S., Koshy, L., Sarada Lekshmi, K.R. et al. Lack of association of Lysyl oxidase (LOX) gene polymorphisms with intracranial aneurysm in a south Indian population. Mol Biol Rep 40, 5869–5874 (2013). https://doi.org/10.1007/s11033-013-2693-1

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  • DOI: https://doi.org/10.1007/s11033-013-2693-1

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