High erythropoietin levels are associated with low neurofilament light levels in simulated high altitude: a further hint for neuroprotection by erythropoietin Article Swipe
Klaus Berek
,
Anna Berek
,
Angelika Bauer
,
Dagmar Rudzki
,
Franziska Di Pauli
,
Gabriel Bsteh
,
Markus Ponleitner
,
Benedikt Treml
,
Axel Kleinsasser
,
Thomas Berger
,
Maria Wille
,
Martin Burtscher
,
Markus Reindl
,
Florian Deisenhammer
,
Harald Hegen
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3389/fneur.2025.1608763
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3389/fneur.2025.1608763
Background Erythropoietin (EPO) plays a crucial role in the early adaption to high altitude and is possibly involved in neuroprotection. Neurofilament light chain (NfL) is an established marker of neuroaxonal damage. Objective To investigate whether EPO dynamics in simulated high altitude are linked to neuroaxonal damage as measured by NfL. Methods Sixty-three healthy subjects were exposed to simulated altitude of 4,500 m for 12 h in a normobaric hypoxic chamber at the University of Innsbruck. Clinical data (heart rate, arterial oxygen saturation) were assessed before and 3 h after high altitude exposure; plasma samples were drawn before (measurement (M) 1) and after 12 h (M2). The levels of EPO and hypoxia-inducible factor (HIF)-1α were quantified using commercially available ELISA kits. NfL concentrations were measured using the Simoa SR-X Analyzer, and NfL Z scores calculated using age- and body mass index (BMI)-adjusted reference values. Results EPO significantly increased after 12 h (M2: 10.12 [7.86–14.06] mU/mL vs. M1: 4.17 [2.99–5.67] mU/mL, p < 0.001), while HIF-1α did not significantly change ( p = 0.409). Subjects with high EPO levels at M2 showed significantly lower NfL concentrations (5.85 [4.15–6.85] pg/mL vs. 6.73 [4.70–8.64] pg/mL, p = 0.030) as well as lower NfL Z scores (0.64 [−0.88–1.17] vs. 0.95 [0.25–1.48], p = 0.040) than those with low EPO levels. The extent of heart rate increase showed a positive correlation with EPO levels at M2 (r s = 0.322, p = 0.011). Conclusion Higher EPO concentrations were associated with lower NfL levels. This might further substantiate the hypothesis of a neuroprotective role of EPO.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3389/fneur.2025.1608763
- https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2025.1608763/pdf
- OA Status
- gold
- References
- 42
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4412693407
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https://openalex.org/W4412693407Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3389/fneur.2025.1608763Digital Object Identifier
- Title
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High erythropoietin levels are associated with low neurofilament light levels in simulated high altitude: a further hint for neuroprotection by erythropoietinWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-07-28Full publication date if available
- Authors
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Klaus Berek, Anna Berek, Angelika Bauer, Dagmar Rudzki, Franziska Di Pauli, Gabriel Bsteh, Markus Ponleitner, Benedikt Treml, Axel Kleinsasser, Thomas Berger, Maria Wille, Martin Burtscher, Markus Reindl, Florian Deisenhammer, Harald HegenList of authors in order
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https://doi.org/10.3389/fneur.2025.1608763Publisher landing page
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https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2025.1608763/pdfDirect link to full text PDF
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2025.1608763/pdfDirect OA link when available
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Erythropoietin, Neuroprotection, Effects of high altitude on humans, Medicine, Low altitude, Neuroscience, Altitude (triangle), Internal medicine, Biology, Anatomy, Mathematics, GeometryTop concepts (fields/topics) attached by OpenAlex
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0Total citation count in OpenAlex
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.chain | 22 |
| abstract_inverted_index.drawn | 95 |
| abstract_inverted_index.early | 9 |
| abstract_inverted_index.heart | 218 |
| abstract_inverted_index.index | 139 |
| abstract_inverted_index.kits. | 119 |
| abstract_inverted_index.light | 21 |
| abstract_inverted_index.lower | 181, 197, 244 |
| abstract_inverted_index.mU/mL | 153 |
| abstract_inverted_index.might | 248 |
| abstract_inverted_index.pg/mL | 186 |
| abstract_inverted_index.plays | 3 |
| abstract_inverted_index.rate, | 78 |
| abstract_inverted_index.those | 210 |
| abstract_inverted_index.using | 115, 124, 134 |
| abstract_inverted_index.while | 162 |
| abstract_inverted_index.(heart | 77 |
| abstract_inverted_index.0.030) | 193 |
| abstract_inverted_index.0.040) | 208 |
| abstract_inverted_index.0.322, | 233 |
| abstract_inverted_index.Higher | 238 |
| abstract_inverted_index.before | 84, 96 |
| abstract_inverted_index.change | 167 |
| abstract_inverted_index.damage | 45 |
| abstract_inverted_index.extent | 216 |
| abstract_inverted_index.factor | 111 |
| abstract_inverted_index.levels | 106, 176, 227 |
| abstract_inverted_index.linked | 42 |
| abstract_inverted_index.mU/mL, | 158 |
| abstract_inverted_index.marker | 27 |
| abstract_inverted_index.oxygen | 80 |
| abstract_inverted_index.pg/mL, | 190 |
| abstract_inverted_index.plasma | 92 |
| abstract_inverted_index.scores | 132, 200 |
| abstract_inverted_index.showed | 179, 221 |
| abstract_inverted_index.0.001), | 161 |
| abstract_inverted_index.0.011). | 236 |
| abstract_inverted_index.0.409). | 171 |
| abstract_inverted_index.HIF-1α | 163 |
| abstract_inverted_index.Methods | 50 |
| abstract_inverted_index.Results | 143 |
| abstract_inverted_index.chamber | 69 |
| abstract_inverted_index.crucial | 5 |
| abstract_inverted_index.damage. | 30 |
| abstract_inverted_index.exposed | 55 |
| abstract_inverted_index.further | 249 |
| abstract_inverted_index.healthy | 52 |
| abstract_inverted_index.hypoxic | 68 |
| abstract_inverted_index.levels. | 214, 246 |
| abstract_inverted_index.samples | 93 |
| abstract_inverted_index.values. | 142 |
| abstract_inverted_index.whether | 34 |
| abstract_inverted_index.&lt; | 160 |
| abstract_inverted_index.Clinical | 75 |
| abstract_inverted_index.Subjects | 172 |
| abstract_inverted_index.adaption | 10 |
| abstract_inverted_index.altitude | 13, 40, 58, 90 |
| abstract_inverted_index.arterial | 79 |
| abstract_inverted_index.assessed | 83 |
| abstract_inverted_index.dynamics | 36 |
| abstract_inverted_index.increase | 220 |
| abstract_inverted_index.involved | 17 |
| abstract_inverted_index.measured | 47, 123 |
| abstract_inverted_index.positive | 223 |
| abstract_inverted_index.possibly | 16 |
| abstract_inverted_index.subjects | 53 |
| abstract_inverted_index.(HIF)-1α | 112 |
| abstract_inverted_index.Analyzer, | 128 |
| abstract_inverted_index.Objective | 31 |
| abstract_inverted_index.available | 117 |
| abstract_inverted_index.exposure; | 91 |
| abstract_inverted_index.increased | 146 |
| abstract_inverted_index.reference | 141 |
| abstract_inverted_index.simulated | 38, 57 |
| abstract_inverted_index.Background | 0 |
| abstract_inverted_index.Conclusion | 237 |
| abstract_inverted_index.Innsbruck. | 74 |
| abstract_inverted_index.University | 72 |
| abstract_inverted_index.associated | 242 |
| abstract_inverted_index.calculated | 133 |
| abstract_inverted_index.hypothesis | 252 |
| abstract_inverted_index.normobaric | 67 |
| abstract_inverted_index.quantified | 114 |
| abstract_inverted_index.Sixty-three | 51 |
| abstract_inverted_index.correlation | 224 |
| abstract_inverted_index.established | 26 |
| abstract_inverted_index.investigate | 33 |
| abstract_inverted_index.neuroaxonal | 29, 44 |
| abstract_inverted_index.saturation) | 81 |
| abstract_inverted_index.(measurement | 97 |
| abstract_inverted_index.commercially | 116 |
| abstract_inverted_index.substantiate | 250 |
| abstract_inverted_index.Neurofilament | 20 |
| abstract_inverted_index.[2.99–5.67] | 157 |
| abstract_inverted_index.[4.15–6.85] | 185 |
| abstract_inverted_index.[4.70–8.64] | 189 |
| abstract_inverted_index.significantly | 145, 166, 180 |
| abstract_inverted_index.(BMI)-adjusted | 140 |
| abstract_inverted_index.Erythropoietin | 1 |
| abstract_inverted_index.[0.25–1.48], | 205 |
| abstract_inverted_index.[7.86–14.06] | 152 |
| abstract_inverted_index.concentrations | 121, 183, 240 |
| abstract_inverted_index.neuroprotective | 255 |
| abstract_inverted_index.[−0.88–1.17] | 202 |
| abstract_inverted_index.neuroprotection. | 19 |
| abstract_inverted_index.hypoxia-inducible | 110 |
| cited_by_percentile_year | |
| corresponding_author_ids | https://openalex.org/A5014894550 |
| countries_distinct_count | 1 |
| institutions_distinct_count | 15 |
| corresponding_institution_ids | https://openalex.org/I143397708, https://openalex.org/I190249584 |
| citation_normalized_percentile.value | 0.33710286 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | True |