Assessment of serum levels of angiogenic factors in dizygotic twin infants with and without retinopathy of prematurity
Öz
The aim of the study was to evaluate the plasma concentrations of vascular endothelial growth factor (VEGF-A), its soluble receptors VEGFR-1 and VEGFR-2, insulin like growth factor (IGF-1) and soluble Tie-2 in twin infants with and without retinopathy of prematurity (ROP). Eleven pairs of twin infants (total 22 infants) were included in the study: There were 11 infants with advanced stage ROP in the study group and 11 infants with no ROP in the control group. Before time-point measurements, the peripheral venous blood samples were first centrifuged, and the plasma was then stored at -70°C. The plasma concentrations of the angiogenic factors were measured by using high sensitivity enzyme-linked immunosorbent assay (ELISA) kits. The average gestational age of the infants at the time of birth and the time at which the serum samples were collected were 30.5±2.3 and 37.5±2.5 weeks, respectively. The average serum levels of all the angiogenic factors were higher in infants with ROP, but the differences were not statistically significant (p>0.05). In this study, serum samples of twins with and without ROP were evaluated simultaneously. The time of serum sampling in the study group corresponded to the period of phase 2 ROP. Therefore, there appeared to be no difference between the ROP group and the control group.
Kaynakça
- Asahara, T., Chen, D., Takahashi, T., Fujikawa, K., Kearney, M., Magner, M., Yancopoulos, G.D., Isner, J.M., 1998. Tie2 receptor ligands, angiopoietin-1 and angiopoietin-2, modulate VEGF-induced postnatal neovascularization. Circ Res. 83, 233-240.
- Biglan, A.W., Brown, D.R., Macpherson, T.A., 1986. Update on retinopathy of prematurity. Semin Perinatol. 10, 187-195.
- Brock, R.S., Gebrekristos, B.H., Kuniyoshi, K.M., Modanlou, H.D., Falcao, M.C., Beharry, K.D., 2011. Biomolecular effects of JB1 (an IGF-I peptide analog) in a rat model of oxygeninduced retinopathy. Pediatr Res. 69, 135-141.
- Budd, S.J., Thompson, H., Hartnett, M.E., 2010. Association of retinal vascular endothelial growth factor with avascular retina in a rat model of retinopathy of prematurity. Arch Ophthalmol. 128, 1014-1021.
- Cai, J., Kehoe, O., Smith, G.M., Hykin, P., Boulton, M.E., 2008. The angiopoietin/Tie-2 system regulates pericyte survival and recruitment in diabetic retinopathy. Invest Ophthalmol Vis Sci. 49, 2163-2171.
- Chung, N.A., Makin, A.J., Lip, G.Y., 2003. Measurement of the soluble angiopoietin receptor tie-2 in patients with coronary artery disease: development and application of an immunoassay. Eur J Clin Invest. 33, 529-535.
- E,G., Cao, Y., Bhattacharya, S., Dutta, S., Wang, E., Mukhopadhyay, D., 2012. Endogenous vascular endothelial growth factor-A (VEGF-A) maintains endothelial cell homeostasis by regulating VEGF receptor-2 transcription. J Biol Chem. 287, 3029-3041.
- Early Treatment For Retinopathy Of Prematurity Cooperative Group, 2003. Revised indications for the treatment of retinopathy of prematurity: Results of the early treatment for retinopathy of prematurity randomized trial. Arch Ophthalmol. 121, 1684-1694.
- Fiedler, U., Krissl, T., Koidl, S., Weiss, C., Koblizek, T., Deutsch, U., Martiny-Baron, G., Marmé, D., Augustin, H.G., 2003. Angiopoietin-1
Öz
Kaynakça
- Asahara, T., Chen, D., Takahashi, T., Fujikawa, K., Kearney, M., Magner, M., Yancopoulos, G.D., Isner, J.M., 1998. Tie2 receptor ligands, angiopoietin-1 and angiopoietin-2, modulate VEGF-induced postnatal neovascularization. Circ Res. 83, 233-240.
- Biglan, A.W., Brown, D.R., Macpherson, T.A., 1986. Update on retinopathy of prematurity. Semin Perinatol. 10, 187-195.
- Brock, R.S., Gebrekristos, B.H., Kuniyoshi, K.M., Modanlou, H.D., Falcao, M.C., Beharry, K.D., 2011. Biomolecular effects of JB1 (an IGF-I peptide analog) in a rat model of oxygeninduced retinopathy. Pediatr Res. 69, 135-141.
- Budd, S.J., Thompson, H., Hartnett, M.E., 2010. Association of retinal vascular endothelial growth factor with avascular retina in a rat model of retinopathy of prematurity. Arch Ophthalmol. 128, 1014-1021.
- Cai, J., Kehoe, O., Smith, G.M., Hykin, P., Boulton, M.E., 2008. The angiopoietin/Tie-2 system regulates pericyte survival and recruitment in diabetic retinopathy. Invest Ophthalmol Vis Sci. 49, 2163-2171.
- Chung, N.A., Makin, A.J., Lip, G.Y., 2003. Measurement of the soluble angiopoietin receptor tie-2 in patients with coronary artery disease: development and application of an immunoassay. Eur J Clin Invest. 33, 529-535.
- E,G., Cao, Y., Bhattacharya, S., Dutta, S., Wang, E., Mukhopadhyay, D., 2012. Endogenous vascular endothelial growth factor-A (VEGF-A) maintains endothelial cell homeostasis by regulating VEGF receptor-2 transcription. J Biol Chem. 287, 3029-3041.
- Early Treatment For Retinopathy Of Prematurity Cooperative Group, 2003. Revised indications for the treatment of retinopathy of prematurity: Results of the early treatment for retinopathy of prematurity randomized trial. Arch Ophthalmol. 121, 1684-1694.
- Fiedler, U., Krissl, T., Koidl, S., Weiss, C., Koblizek, T., Deutsch, U., Martiny-Baron, G., Marmé, D., Augustin, H.G., 2003. Angiopoietin-1
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Konular | Sağlık Kurumları Yönetimi |
| Bölüm | Basic Medical Sciences |
| Yazarlar | |
| Yayımlanma Tarihi | 26 Mart 2013 |
| Gönderilme Tarihi | 23 Kasım 2012 |
| Yayımlandığı Sayı | Yıl 2013 Cilt: 30 Sayı: 1 |
Kaynak Göster
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