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Japanese Journal of Ophthalmology

, Volume 61, Issue 6, pp 479–483 | Cite as

Concentration of acute phase factors in vitreous fluid in diabetic macular edema

  • Kazuhiro KimuraEmail author
  • Tomoko Orita
  • Yuka Kobayashi
  • Shigeo Matsuyama
  • Kazushi Fujimoto
  • Kazuhiko Yamauchi
Clinical Investigation

Abstract

Purpose

Diabetic retinal maculopathy is associated with acute and chronic local inflammation. We measured the concentrations of acute phase factors in vitreous fluid of patients with diabetic macular edema (DME) and examined their relations to visual acuity and central retinal thickness (CRT) both before and after vitrectomy.

Study design

Retrospective.

Methods

Vitreous fluid was collected during vitreoretinal surgery from 19 patients with DME and 12 control subjects with epiretinal membrane. The concentrations of acute phase factors (α2-macroglobulin, haptoglobin, C-reactive protein, serum amyloid P and A, procalcitonin, ferritin, tissue plasminogen activator, fibrinogen) and vascular endothelial growth factor (VEGF) were measured with multiplex assays. CRT of macular edema was measured by optical coherence tomography (OCT).

Results

The levels of serum amyloid P, procalcitonin, ferritin, and fibrinogen in vitreous fluid were increased in DME patients compared with control subjects. The levels of procalcitonin and fibrinogen in DME patients were inversely correlated with visual acuity both before and 3 months after vitrectomy but not 6 months postsurgery. The concentrations of these four factors were not correlated with either CRT or the vitreous levels of VEGF in DME patients.

Conclusion

Acute phase factors may contribute to local inflammation in DME and may therefore influence disease progression.

Keywords

Acute phase factor Diabetic macular edema Visual acuity Central retinal thickness Vascular endothelial growth factor (VEGF) 

Notes

Acknowledgements

We thank Yukari Mizuno and Shizuka Murata for technical assistance as well as members of the Setouchi Vitreous Club for support.

Conflicts of interest

K. Kimura, None; T. Orita, None; Y. Kobayashi, None; S. Matsuyama, None; K. Fujimoto, None; K. Yamauchi, None.

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Copyright information

© Japanese Ophthalmological Society 2017

Authors and Affiliations

  • Kazuhiro Kimura
    • 1
    Email author
  • Tomoko Orita
    • 1
  • Yuka Kobayashi
    • 1
  • Shigeo Matsuyama
    • 2
  • Kazushi Fujimoto
    • 3
  • Kazuhiko Yamauchi
    • 4
  1. 1.Department of OphthalmologyYamaguchi University Graduate School of MedicineUbeJapan
  2. 2.Jyousaigaoka Eye ClinicFukuokaJapan
  3. 3.Fujimoto Eye ClinicKitakyushuJapan
  4. 4.Department of OphthalmologyJapanese Red Cross Yamaguchi HospitalYamaguchiJapan

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