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Nt-proANP in plasma, a marker of salt sensitivity, is reduced in type 2 diabetes patients.

Melander, Olle LU orcid ; Frandsen, E ; Magnusson, Martin LU orcid ; Grubb, Anders LU orcid ; Jovinge, Stefan LU and Groop, Leif LU (2005) In Journal of Internal Medicine 257(3). p.281-288
Abstract
Objective. We recently showed that plasma concentration of N-terminal atrial natriuretic peptide (Nt-proANP) is strongly directly related to salt sensitivity. The aims of the present study were to test (i) whether plasma concentration of N-terminal brain natriuretic peptide (Nt-proBNP) is related to salt sensitivity and (ii) whether Nt-proANP, as a marker of salt sensitivity, differs between type 2 diabetes patients and nondiabetic subjects without a history of coronary heart disease.



Methods. Nt-proBNP was determined in 30 Swedish normal subjects with heredity for primary hypertension and salt sensitivity was defined as the difference between mean arterial blood pressure after 1 week on a high-salt diet (240 mmol day-1)... (More)
Objective. We recently showed that plasma concentration of N-terminal atrial natriuretic peptide (Nt-proANP) is strongly directly related to salt sensitivity. The aims of the present study were to test (i) whether plasma concentration of N-terminal brain natriuretic peptide (Nt-proBNP) is related to salt sensitivity and (ii) whether Nt-proANP, as a marker of salt sensitivity, differs between type 2 diabetes patients and nondiabetic subjects without a history of coronary heart disease.



Methods. Nt-proBNP was determined in 30 Swedish normal subjects with heredity for primary hypertension and salt sensitivity was defined as the difference between mean arterial blood pressure after 1 week on a high-salt diet (240 mmol day-1) and 1 week on a low-salt diet (10 mmol day-1). Nt-proANP was measured in 253 patients with type 2 diabetes and in 230 nondiabetic subjects aged 40–70 years, all without a history of coronary heart disease.



Results. Amongst the 30 subjects, in whom salt sensitivity was directly measured, Nt-proBNP was not correlated with salt sensitivity (R = −0.18, P = 0.35). Nt-proANP (median, interquartile range) was lower in patients with type 2 diabetes (505, 387–661 pmol L-1) than in nondiabetic subjects (536, 421–696 pmol L-1) (P = 0.02). In a multiple regression analysis heart rate (P < 0.00001), diastolic blood pressure (P = 0.02) and diabetes status (P = 0.02) were inversely related whereas age (P < 0.00001), cystatin C (P = 0.0006), hypertension treatment (P = 0.002) and female sex (P = 0.006) were directly related to ln(Nt-proANP).



Conclusion. In contrast to Nt-proANP, Nt-proBNP is not related to salt sensitivity. Salt sensitivity, as estimated by Nt-proANP, seems to be reduced in type 2 diabetes. (Less)
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Internal Medicine
volume
257
issue
3
pages
281 - 288
publisher
Wiley-Blackwell
external identifiers
  • wos:000227556500008
  • pmid:15715685
  • scopus:14844292116
  • pmid:15715685
ISSN
1365-2796
DOI
10.1111/j.1365-2796.2005.01449.x
language
English
LU publication?
yes
id
66b56efa-5186-4331-9c67-14633137a9c8 (old id 133727)
date added to LUP
2016-04-01 16:41:46
date last changed
2024-03-13 10:56:28
@article{66b56efa-5186-4331-9c67-14633137a9c8,
  abstract     = {{Objective. We recently showed that plasma concentration of N-terminal atrial natriuretic peptide (Nt-proANP) is strongly directly related to salt sensitivity. The aims of the present study were to test (i) whether plasma concentration of N-terminal brain natriuretic peptide (Nt-proBNP) is related to salt sensitivity and (ii) whether Nt-proANP, as a marker of salt sensitivity, differs between type 2 diabetes patients and nondiabetic subjects without a history of coronary heart disease.<br/><br>
<br/><br>
Methods. Nt-proBNP was determined in 30 Swedish normal subjects with heredity for primary hypertension and salt sensitivity was defined as the difference between mean arterial blood pressure after 1 week on a high-salt diet (240 mmol day-1) and 1 week on a low-salt diet (10 mmol day-1). Nt-proANP was measured in 253 patients with type 2 diabetes and in 230 nondiabetic subjects aged 40–70 years, all without a history of coronary heart disease.<br/><br>
<br/><br>
Results. Amongst the 30 subjects, in whom salt sensitivity was directly measured, Nt-proBNP was not correlated with salt sensitivity (R = −0.18, P = 0.35). Nt-proANP (median, interquartile range) was lower in patients with type 2 diabetes (505, 387–661 pmol L-1) than in nondiabetic subjects (536, 421–696 pmol L-1) (P = 0.02). In a multiple regression analysis heart rate (P &lt; 0.00001), diastolic blood pressure (P = 0.02) and diabetes status (P = 0.02) were inversely related whereas age (P &lt; 0.00001), cystatin C (P = 0.0006), hypertension treatment (P = 0.002) and female sex (P = 0.006) were directly related to ln(Nt-proANP).<br/><br>
<br/><br>
Conclusion. In contrast to Nt-proANP, Nt-proBNP is not related to salt sensitivity. Salt sensitivity, as estimated by Nt-proANP, seems to be reduced in type 2 diabetes.}},
  author       = {{Melander, Olle and Frandsen, E and Magnusson, Martin and Grubb, Anders and Jovinge, Stefan and Groop, Leif}},
  issn         = {{1365-2796}},
  language     = {{eng}},
  number       = {{3}},
  pages        = {{281--288}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Journal of Internal Medicine}},
  title        = {{Nt-proANP in plasma, a marker of salt sensitivity, is reduced in type 2 diabetes patients.}},
  url          = {{https://lup.lub.lu.se/search/files/4753088/624389.pdf}},
  doi          = {{10.1111/j.1365-2796.2005.01449.x}},
  volume       = {{257}},
  year         = {{2005}},
}