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VEGF Promoter Region 18-bp Insertion-Deletion Polymorphism in Sickle Cell Disease Patients with Microalbuminuria: A Pilot Study

  • Dnyanesh B. Amle
  • Rachana L. Patnayak
  • Varsha Verma
  • Gajendra Kumar Singh
  • Vijaylakshmi Jain
  • P. K. Khodiar
  • P. K. Patra
Original Article
  • 5 Downloads

Abstract

Purpose

Vascular endothelial growth factor (VEGF) is a potent inducer of micro vascular permeability thus leading to nephropathy. Insertion/deletion (I/D) polymorphism of 18 bp at − 2549 position in VEGF gene causes increased transcription leading to increased production of VEGF. Thus, we aimed to associate I/D polymorphism of the 18 bp fragment at − 2549 position of the promoter region of VEGF gene with sickle cell nephropathy (SCN).

Methods

This observational analytical case control study included 30 subjects each of SCN, sickle cell disease (SCD) without nephropathy and the control group. The subjects were assessed for various hematological and biochemical parameters. Further, 18 bp I/D polymorphism of VEGF gene in all three study groups was assessed by polymerase chain reaction followed by electrophoresis and compared.

Result

Though increased frequency of both DD genotype and D allele was found in SCN compared to SCD and control, only frequency of D allele was found to be significantly higher (p = 0.04). D allele posed marginal risk of microalbuminuria in SCD subjects compared to controls (OR = 2.11) as well as to SCD without MA subjects (OR = 1.84).

Conclusion

D allele in I/D polymorphism in the promoter region of VEGF gene may be associated with marginal increase in risk of susceptibility to sickle cell nephropathy.

Keywords

Sickle cell disease Sickle cell nephropathy VEGF Polymorphism 

Notes

Compliance with Ethical Standards

Conflict of interest

All authors declare that there is no conflict of interest related to the work.

Ethical Approval

The study was conducted in blood and urine samples received from human subjects. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and were approved by institutional ethical committee of Pt. J. N. M. Medical College and Hospital, Raipur, CG and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed Consent

Written informed consent was obtained from the parent or the legal guardian and assent was obtained from the subjects for all individual participants included in the study.

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Copyright information

© Indian Society of Hematology and Blood Transfusion 2018

Authors and Affiliations

  1. 1.Department of BiochemistryPt. J.N.M. Medical CollegeRaipurIndia
  2. 2.Department of BiochemistryCIMSBilaspurIndia

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