Serum PTH is not a good marker for defining a threshold for vitamin D deficiency
Objective : In addition to its skeletal effects, vitamin D may also be important for health in general. It is uncertain what level of serum 25-hydroxyvitamin D (25(OH)D), marker of vitamin D status, is sufficient for these effects. With decreasing serum 25(OH)D levels there is an increase in serum P...
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BioScientifica
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Online Access: | https://hdl.handle.net/10037/20382 https://doi.org/10.1530/EC-20-0067 |
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ftunivtroemsoe:oai:munin.uit.no:10037/20382 2023-05-15T18:34:28+02:00 Serum PTH is not a good marker for defining a threshold for vitamin D deficiency Jorde, Rolf Grimnes, Guri 2020-04-01 https://hdl.handle.net/10037/20382 https://doi.org/10.1530/EC-20-0067 eng eng BioScientifica Endocrine Connections info:eu-repo/grantAgreement/RCN/KLINISK/184766/Norway/Prevention of type 2 diabetes with vitamin D supplementation in subjects with reduced glucose tolerance detected in the Tromsø study// Jorde, Grimnes. Serum PTH is not a good marker for defining a threshold for vitamin D deficiency. Endocrine Connections. 2020;9(5):396-404 FRIDAID 1848351 doi:10.1530/EC-20-0067 2049-3614 https://hdl.handle.net/10037/20382 openAccess Copyright 2020 The Author(s) VDP::Medical disciplines: 700::Basic medical dental and veterinary science disciplines: 710 VDP::Medisinske Fag: 700::Basale medisinske odontologiske og veterinærmedisinske fag: 710 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2020 ftunivtroemsoe https://doi.org/10.1530/EC-20-0067 2021-06-25T17:57:55Z Objective : In addition to its skeletal effects, vitamin D may also be important for health in general. It is uncertain what level of serum 25-hydroxyvitamin D (25(OH)D), marker of vitamin D status, is sufficient for these effects. With decreasing serum 25(OH)D levels there is an increase in serum PTH. The point at which this occurs has been considered as a threshold for vitamin D sufficiency. The thresholds found have varied widely and have mainly been based on observational studies. However, to truly establish a threshold for vitamin D effects, this has to be based on randomized controlled trials (RCTs). Methods : 2803 subjects from a general health survey, the Tromsø study, and pooled individual person data from five vitamin D intervention studies (n = 1544) were included. Serum parathyroid hormone (PTH) and change in PTH after vitamin D supplementation was related to serum 25(OH)D levels in steps of 25 nmol/L (<24, 25-49, 50-74, 75-99, >99 nmol/L). Results : In the Tromsø study there was in the females a gradual decrease in serum PTH with increasing serum 25(OH)D with no apparent plateau, whereas in the males the decrease in PTH in subjects with serum 25(OH)D >74 nmol/l was marginal. In pooled RCTs, there was a significant reduction in serum PTH by vitamin D supplementation regardless of baseline serum 25(OH)D level. Conclusions : The use of the serum PTH – 25(OH)D relation from observations studies to determine a threshold for vitamin D sufficiency is highly questionable. Article in Journal/Newspaper Tromsø University of Tromsø: Munin Open Research Archive Tromsø Endocrine Connections 9 5 396 404 |
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Open Polar |
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University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Medical disciplines: 700::Basic medical dental and veterinary science disciplines: 710 VDP::Medisinske Fag: 700::Basale medisinske odontologiske og veterinærmedisinske fag: 710 |
spellingShingle |
VDP::Medical disciplines: 700::Basic medical dental and veterinary science disciplines: 710 VDP::Medisinske Fag: 700::Basale medisinske odontologiske og veterinærmedisinske fag: 710 Jorde, Rolf Grimnes, Guri Serum PTH is not a good marker for defining a threshold for vitamin D deficiency |
topic_facet |
VDP::Medical disciplines: 700::Basic medical dental and veterinary science disciplines: 710 VDP::Medisinske Fag: 700::Basale medisinske odontologiske og veterinærmedisinske fag: 710 |
description |
Objective : In addition to its skeletal effects, vitamin D may also be important for health in general. It is uncertain what level of serum 25-hydroxyvitamin D (25(OH)D), marker of vitamin D status, is sufficient for these effects. With decreasing serum 25(OH)D levels there is an increase in serum PTH. The point at which this occurs has been considered as a threshold for vitamin D sufficiency. The thresholds found have varied widely and have mainly been based on observational studies. However, to truly establish a threshold for vitamin D effects, this has to be based on randomized controlled trials (RCTs). Methods : 2803 subjects from a general health survey, the Tromsø study, and pooled individual person data from five vitamin D intervention studies (n = 1544) were included. Serum parathyroid hormone (PTH) and change in PTH after vitamin D supplementation was related to serum 25(OH)D levels in steps of 25 nmol/L (<24, 25-49, 50-74, 75-99, >99 nmol/L). Results : In the Tromsø study there was in the females a gradual decrease in serum PTH with increasing serum 25(OH)D with no apparent plateau, whereas in the males the decrease in PTH in subjects with serum 25(OH)D >74 nmol/l was marginal. In pooled RCTs, there was a significant reduction in serum PTH by vitamin D supplementation regardless of baseline serum 25(OH)D level. Conclusions : The use of the serum PTH – 25(OH)D relation from observations studies to determine a threshold for vitamin D sufficiency is highly questionable. |
format |
Article in Journal/Newspaper |
author |
Jorde, Rolf Grimnes, Guri |
author_facet |
Jorde, Rolf Grimnes, Guri |
author_sort |
Jorde, Rolf |
title |
Serum PTH is not a good marker for defining a threshold for vitamin D deficiency |
title_short |
Serum PTH is not a good marker for defining a threshold for vitamin D deficiency |
title_full |
Serum PTH is not a good marker for defining a threshold for vitamin D deficiency |
title_fullStr |
Serum PTH is not a good marker for defining a threshold for vitamin D deficiency |
title_full_unstemmed |
Serum PTH is not a good marker for defining a threshold for vitamin D deficiency |
title_sort |
serum pth is not a good marker for defining a threshold for vitamin d deficiency |
publisher |
BioScientifica |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/20382 https://doi.org/10.1530/EC-20-0067 |
geographic |
Tromsø |
geographic_facet |
Tromsø |
genre |
Tromsø |
genre_facet |
Tromsø |
op_relation |
Endocrine Connections info:eu-repo/grantAgreement/RCN/KLINISK/184766/Norway/Prevention of type 2 diabetes with vitamin D supplementation in subjects with reduced glucose tolerance detected in the Tromsø study// Jorde, Grimnes. Serum PTH is not a good marker for defining a threshold for vitamin D deficiency. Endocrine Connections. 2020;9(5):396-404 FRIDAID 1848351 doi:10.1530/EC-20-0067 2049-3614 https://hdl.handle.net/10037/20382 |
op_rights |
openAccess Copyright 2020 The Author(s) |
op_doi |
https://doi.org/10.1530/EC-20-0067 |
container_title |
Endocrine Connections |
container_volume |
9 |
container_issue |
5 |
container_start_page |
396 |
op_container_end_page |
404 |
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1766219230888329216 |