Potential metabolic markers in glaucoma and their regulation in response to hypoxia
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Potential metabolic markers in glaucoma and their regulation in response to hypoxia. / Vohra, Rupali; Dalgaard, Line Marie; Vibaek, Jeppe; Langbøl, Mia Aggergaard; Bergersen, Linda Hildegaard; Olsen, Niels Vidiendal; Hassel, Bjørnar; Chaudhry, Farrukh Abbas; Kolko, Miriam.
In: Acta Ophthalmologica, Vol. 97, No. 6, 28.01.2019, p. 567-576.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Potential metabolic markers in glaucoma and their regulation in response to hypoxia
AU - Vohra, Rupali
AU - Dalgaard, Line Marie
AU - Vibaek, Jeppe
AU - Langbøl, Mia Aggergaard
AU - Bergersen, Linda Hildegaard
AU - Olsen, Niels Vidiendal
AU - Hassel, Bjørnar
AU - Chaudhry, Farrukh Abbas
AU - Kolko, Miriam
N1 - © 2019 Acta Ophthalmologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.
PY - 2019/1/28
Y1 - 2019/1/28
N2 - PURPOSE: To assess novel differences in serum levels of glucose, lactate and amino acids in patients with normal-tension glaucoma (NTG) compared to age-matched controls, at baseline and in response to universal hypoxia.METHODS: Twelve patients diagnosed with NTG and eleven control subjects underwent normobaric hypoxia for 2 hr. Peripheral venous blood samples were taken at baseline, during hypoxia and in the recovery phase. Serum glucose and lactate levels were measured by a blood gas analyser. Amino acids were analysed by high-performance liquid chromatography.RESULTS: Baseline levels of lactate and total amino acids were significantly lower in patients with NTG compared to healthy controls. No differences were seen in blood glucose levels between the two groups. Lactate levels remained unchanged during hypoxia in the control group, but increased in patients with NTG. In the recovery phase, total amino acid levels were reduced in the control group, whereas no changes were found in patients with NTG.CONCLUSION: Reduced serum levels of lactate and total amino acids were identified as potential markers for NTG. Moreover, significant differential regulatory patterns of certain amino acids were found in patients with NTG compared to control subjects. Overall, our results suggest a link between systemic energy metabolites and NTG and support a novel understanding of glaucoma as an inner retinal manifestation of a systemic condition.
AB - PURPOSE: To assess novel differences in serum levels of glucose, lactate and amino acids in patients with normal-tension glaucoma (NTG) compared to age-matched controls, at baseline and in response to universal hypoxia.METHODS: Twelve patients diagnosed with NTG and eleven control subjects underwent normobaric hypoxia for 2 hr. Peripheral venous blood samples were taken at baseline, during hypoxia and in the recovery phase. Serum glucose and lactate levels were measured by a blood gas analyser. Amino acids were analysed by high-performance liquid chromatography.RESULTS: Baseline levels of lactate and total amino acids were significantly lower in patients with NTG compared to healthy controls. No differences were seen in blood glucose levels between the two groups. Lactate levels remained unchanged during hypoxia in the control group, but increased in patients with NTG. In the recovery phase, total amino acid levels were reduced in the control group, whereas no changes were found in patients with NTG.CONCLUSION: Reduced serum levels of lactate and total amino acids were identified as potential markers for NTG. Moreover, significant differential regulatory patterns of certain amino acids were found in patients with NTG compared to control subjects. Overall, our results suggest a link between systemic energy metabolites and NTG and support a novel understanding of glaucoma as an inner retinal manifestation of a systemic condition.
U2 - 10.1111/aos.14021
DO - 10.1111/aos.14021
M3 - Journal article
C2 - 30690927
VL - 97
SP - 567
EP - 576
JO - Acta Ophthalmologica
JF - Acta Ophthalmologica
SN - 1755-375X
IS - 6
ER -
ID: 214264575