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Metabolomics analysis in pterygium tissue

  • Ayhan SaglikEmail author
  • Ismail Koyuncu
  • Ataman Gonel
  • Hamza Yalcin
  • Fatih Mehmet Adibelli
  • Muslum Toptan
Original Paper
  • 42 Downloads

Abstract

Purpose

The aim of the study was to measure amino acid levels with the metabolomics analysis in pterygium tissue and normal conjunctiva tissue.

Materials and methods

In this prospective, randomized, clinical study, a comparison of the amino acid profile of pterygium tissue and normal conjunctiva tissue taken during autograft pterygium surgery was made. After homogenization of the tissues, amino acid levels were measured with chromatography–mass spectrometry (LC–MS/MS) in the biochemistry laboratory. Statistical analysis was made using the Wilcoxon signed-rank test.

Results

Evaluation of pterygium and normal conjunctiva tissues of 29 patients, comprising 16 females and 13 males with a mean age of 54.75 ± 11.25 years (range 21–78 years) was made. While a dramatic increase was observed in all the amino acid levels in the pterygium tissue compared to the normal conjunctiva (p > 0.05), only the increases in arginine, methionine, glycine and tyrosine amino acids were determined to be statistically significant (p < 0.01), (p = 0.028), (p = 0.038), (p = 0.046).

Conclusion

Pterygium is known to be degenerative inflammatory fibrovascular tissue. When the aetiology is examined in depth, several metabolic processes are seen to have an effect. Further studies of the amino acid profile with more extensive patient series could confirm the data obtained in the current study and contribute to the clarification of the pathogenesis of pterygium.

Keywords

Amino acid Chromatography–mass spectrometry Metabolomics Pterygium 

Notes

Funding

This work was supported by the research fund of Harran University (HUBAK). Project Number: 17244.

Compliance with ethical standards

Conflict of interest

All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership or other equity interest; and expert testimony or patent-licensing arrangements) or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.

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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Department of OphthalmologyHarran University Faculty of MedicineHaliliyeTurkey
  2. 2.Department of BiochemistryHarran University Faculty of MedicineHaliliyeTurkey
  3. 3.Unit of Biometry and GeneticsHarran University Faculty of AgricultureHaliliyeTurkey

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