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Region Hovedstaden - en del af Københavns Universitetshospital
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Glucagon-like peptide-1 receptor expression in the human eye

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

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  • Josephine B Hebsgaard
  • Charles Pyke
  • Emre Yildirim
  • Lotte B Knudsen
  • Steffen Heegaard
  • Peter H Kvist
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Semaglutide is a human glucagon-like peptide-1 (GLP-1) analogue that is in development for the treatment of type 2 diabetes. In the pre-approval cardiovascular outcomes trial SUSTAIN 6, semaglutide was associated with a significant increase in the risk of diabetic retinopathy (DR) complications vs placebo. GLP-1 receptor (GLP-1R) expression has previously been demonstrated in the retina in animals and humans; however, antibodies used to detect expression have been documented to be non-specific and fail to detect the GLP-1R using immunohistochemistry (IHC), a problem common for many G-protein coupled receptors. Using a validated GLP-1R antibody for IHC and in situ hybridization for GLP-1R mRNA in normal human eyes, GLP-1Rs were detected in a small fraction of neurons in the ganglion cell layer. In advanced stages of DR, GLP-1R expression was not detected at the protein or mRNA level. Specifically, no GLP-1R expression was found in the eyes of people with long-standing proliferative DR (PDR). In conclusion, GLP-1R expression is low in normal human eyes and was not detected in eyes exhibiting advanced stages of PDR.

OriginalsprogEngelsk
TidsskriftDiabetes, Obesity and Metabolism
Vol/bind20
Udgave nummer9
Sider (fra-til)2304-2308
Antal sider5
ISSN1462-8902
DOI
StatusUdgivet - sep. 2018

ID: 56469821