Journals / Retina-Vitreus / 2010 / Cilt: 18 - Sayı: 3

Effects of octreotide in experimental proliferative vitreoretınopathy

Deneysel proliferatif vitreoretinopatide oktreotid’in etkinliği

Pages
203–209
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Due to its lesser side effects, it might be a more reliable and effective drug in PVR when the side effects of the previous ones are taken into account.

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: In this study, we aimed to invastigate the effect of octreotide on the development of proliferative vitreoretinopathy (PVR).
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Key Findings & Data:Materials and Methods: In this study, of 21 guinea pigs were randomly assigned to form three groups each including seven animals.
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Conclusion & Impact:Due to its lesser side effects, it might be a more reliable and effective drug in PVR when the side effects of the previous ones are taken into account.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Purpose: In this study, we aimed to invastigate the effect of octreotide on the development of proliferative vitreoretinopathy (PVR). Materials and Methods: In this study, of 21 guinea pigs were randomly assigned to form three groups each including seven animals. Group 1 was defined as the control group and 0.2 ml saline solution was applied intravitreally in a location of 1.5 mm behind the limbus. Group 2 was defined as the sham group and 0.07 IU dispase in 0.1 ml and 0.1 ml saline solution were applied via the same route and 0.07 IU dispase in 0.1 ml and 1 mg octreotide in 0.1 ml were applied intravitreally in Group 3 which was defined as the treatment group. Octreotide was applied twice during the experimental priod. At the end of 10 weeks, eyes have been dissected saggitaly through corneal apex to the optic nevre. After histopathologic preperation, formation of epiretinal membrane, corruption on internal limiting membrane, existence of retinal fold and caryopycnosis in ganglion cells were examined. Results: In the treatment group, histopathologic examination revealed significant decrease in epiretinal membrane formation and internal limiting membrane corruption (p<0.05). Conclusion: As the result, it has been observed that octreotide might partially inhibit PVR formation. Due to its lesser side effects, it might be a more reliable and effective drug in PVR when the side effects of the previous ones are taken into account.

Özet

Amaç: Bu çalışmada intravitreal uygulanan oktreotidin proliferatif vitreoretinopati (PVR) gelişimi üzerine olan etkinliğini araştırmak amaçlanmıştır. Gereç ve Yöntem: Çalışmada, 21 adet pigmente kobay randomize olarak üç eşit gruba ayrılmıştır. Grup 1 kontrol grubu olarak belirlenmiş ve limbusun 1,5 mm gerisinden 0.2 ml salin solüsyonu intravitreal olarak uygulanmıştır. Grup 2 sham grubu olarak belirlenmiş ve aynı metodla 0.1 ml’de 0.07 IU dispase ve 0.1 ml salin solüsyonu intravitreal olarak uygulanmıştır. Tedavi grubu olarak belirlenen grup 3’deki deneklere ise yine aynı metodla 0.1ml’de 0.07 IU dispase ve 0.1 ml’de 1 mgr oktreotid intravitreal olarak uygulanmıştır. Deney süresi olan 10 hafta boyunca toplam iki kez oktreotid enjeksiyonu yapılmıştır. 10 haftanın bitiminde tüm gruplardaki hayvanların her iki gözleri enüklee edilip retinaları hematoksilen eozin ile boyanarak histopatolojik olarak epiretinal membran oluşumu, internal limitan membranda bozulma, retinal fold varlığı ve ganglion hücrelerinde karyopiknoz varlığı açısından değerlendirildi. Bulgular: Tedavi gruplarının histopatolojik incelemesinde özellikle epiretinal membran oluşumu ve internal limitan membranda bozulma açısından anlamlı düzelme görülmüştür (p<0.05). Sonuç: Oktreotidin bütünüyle olmasa da oldukça etkin şekilde PVR’yi engelleyebileceği görülmüştür. Özellikle de PVR’nin adjuvan tedavisinde denenen diğer antiproliferatif ajanların yan etkileri göz önüne alındığında oktreotid daha güvenli ve etkili alternatif bir ilaç olabilir.

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Cite This Article

TURGUT, B., EVREN, Ö., ÇELİKER, Ü., DAĞLI, F. (2010). Effects of octreotide in experimental proliferative vitreoretınopathy. Retina-Vitreus, Cilt: 18 - Sayı: 3, 203–209. https://ajindex.com/articles/308145

References (14)

  1. Glaser BM, Lemor M.: Pathobiology of Proliferative Vitreoretinopathy. In Ryan SJ: Retina CV Mosby, 2nd ed, St. Louis. 1994, p:2249-2263
  2. Scott JD.: Pathogenesis of proliferative vitreoretinopathy with analisis of events leading to recurrent retinal detachment. Heimann K, Wiedemann P. (editors): Proliferative Vitreoretinopathy., Kaden, Heilderberg. 1989, p:150-153
  3. Wiedemann P, Weller M.: The Pathophysiology of proliferative vitreoretinopathy. Acta Ophtalmol. 1988;189:3-15
  4. Charteris DG, Sethi CS, Lewis GP, et al.: Proliferative vitreoretinopathy- developments in adjunctive treatment and retinal pathology. Eye. 2002;16:369-374
  5. Charteris DG.: Proliferative vitreoretinopathy: pathobiology, surgical management and adjunctive treatment. Br J Ophthalmol. 1995;79:953-960
  6. Spraul CW, Kawen CK, Kampmeier JK, et al.: Effect of thalidomide, octreotide, and prednisolone on the migration and proliferation of RPE cells in vitro. Curr Eye Res. 1999;19:483-490
  7. Baldysiak- Figiel A, Lang GK, Kampmeier J, et al.: Octreotide prevents growth factor induced proliferation of bovine retinal endothelial cells under hypoxia. Journal of Endocrinology. 2004; 180:417-424
  8. Grant MB, Wargovich TJ, Ellis EA, et al.: Localization of insulinlike growth factor-I and inhibition of coronary smooth muscle cell growth by somatostatin analogues in human coronary smooth muscle cells. Circulation. 1994;89:1511-1517
  9. Luo Q, Peyman GA, Conway MD, et al.: Effect of somatostatin analog (octreotide acetate) on the growth of retinal pigment epithelial cells in culture. Curr Eye Res. 1996;15:909-913
  10. Pawlikowski M, Melen-Mucha G.: Perspectives of new potential therapeutic applications of somatostatin analogs. Neuro Endocrinol Lett. 2003;24:21-27
  11. Demir T, Celiker U, Kükner A, et al.: Effect of octreotide on experimental corneal neovascularization. Acta Ophthalmol Scand. 1999;77:386-390
  12. Baldysiak-Figiel A, Jong-Hesse YD, Lang GK, et al.: Octreotide inhibits growth factor- induced and basal proliferation of lens epithelial cells in vitro. J Cataract Refract Surg. 2005;31:1059-1064
  13. Mallet B, Vialettes B, Haroche S, et al.: Stabilization of severe proliferative diabetic retinopathy by long-term treatment with SMS 201-995. Diabet & Metabolism. 1992;18:438-444
  14. Casani G, Catalani E, Dal Monte M, et al.: Functional aspects of the somatostatinergic system in the retina and the potential therapeutic role of somatostatin in retinal disease. Histol Histopathol. 200