ACR Meeting Abstracts

ACR Meeting Abstracts

  • Meetings
    • ACR Convergence 2024
    • ACR Convergence 2023
    • 2023 ACR/ARP PRSYM
    • ACR Convergence 2022
    • ACR Convergence 2021
    • ACR Convergence 2020
    • 2020 ACR/ARP PRSYM
    • 2019 ACR/ARP Annual Meeting
    • 2018-2009 Meetings
    • Download Abstracts
  • Keyword Index
  • Advanced Search
  • Your Favorites
    • Favorites
    • Login
    • View and print all favorites
    • Clear all your favorites
  • ACR Meetings

Abstract Number: 2807

Skin and Muscle Sodium Concentrations in Patients with Systemic Lupus Erythematosus: A Proof of Concept Study

Cecilia P. Chung1, Michelle J. Ormseth1, Annette M. Oeser1, Ping Wang2, John C. Gore2, Jens Titze1 and C. Michael Stein1, 1Medicine, Vanderbilt University Medical Center, Nashville, TN, 2Radiology, Vanderbilt University Medical Center, Nashville, TN

Meeting: 2016 ACR/ARHP Annual Meeting

Date of first publication: September 28, 2016

Keywords: MRI and systemic lupus erythematosus (SLE)

  • Tweet
  • Email
  • Print
Session Information

Date: Tuesday, November 15, 2016

Title: Systemic Lupus Erythematosus – Clinical Aspects and Treatment - Poster III: Biomarkers and Nephritis

Session Type: ACR Poster Session C

Session Time: 9:00AM-11:00AM

Background/Purpose:   Recent findings indicate that sodium is stored in the body and plays an important role in immune regulation. Studies in animals and humans show that sodium is stored in skin and muscle and can be measured with 23Na magnetic resonance imaging (MRI). In animal models increased tissue sodium is associated with activation of the immune system and a high salt intake exacerbates autoimmune disease. However, there is no information about tissue sodium in human autoimmune disease. We hypothesize that skin and muscle sodium concentrations are higher in patients with systemic lupus erythematosus (SLE) than control subjects.

Methods:  Skin and muscle Na+ content in the lower leg was measured with a 23Na+ knee-coil (Rapid Biomedical GmbH, Rimpar, Germany) at a Philips 3.0 Tesla Achieva scanner (Philips Healthcare, Best, the Netherlands) in 7 patients with SLE and 8 control subjects. Phantoms containing aqueous solutions with 10, 20, 30, and 40 mmol/L NaCl were included for calibration. Skin and muscle sodium concentrations between patients and control subjects were compared using Wilcoxon-rank sum tests.

Results: Demographic characteristics and systolic blood pressure (median and interquartile range) of patients with SLE and controls were similar (Table). The median SLEDAI score in patients with SLE was 2 (0-4). Patients with SLE had higher median skin and muscle 23Na concentrations than control subjects. (Table) This association was unchanged after adjustment for age (p=0.06 and 0.05, respectively).  Table: Comparison of clinical variables between patients with SLE and control subjects

 

SLE (n=7)

Controls (n=8)

p-value

Age

41 (32-56)

34 (28-47)

0.42

Female n (%)

6 (86%)

7 (88%)

0.73

Systolic blood pressure (mm Hg)

129 (114-146)

125 (118-130)

0.39

Skin 23 Na+ (mmol/kg)

16.4 (15.0-19.6)

12.4 (10.9-15.9)

0.06

Muscle 23Na+ (mmol/kg)

17.4 (15.8-19.2)

15.0 (14.5-16.7)

0.049

Conclusion:  This proof-of-concept study suggests that patients with SLE have higher skin and muscle sodium concentrations. Further studies are needed to examine the relationship between stored sodium with measures of disease activity, blood pressure, and cardiovascular disease in patients with SLE.


Disclosure: C. P. Chung, None; M. J. Ormseth, None; A. M. Oeser, None; P. Wang, None; J. C. Gore, None; J. Titze, None; C. M. Stein, None.

To cite this abstract in AMA style:

Chung CP, Ormseth MJ, Oeser AM, Wang P, Gore JC, Titze J, Stein CM. Skin and Muscle Sodium Concentrations in Patients with Systemic Lupus Erythematosus: A Proof of Concept Study [abstract]. Arthritis Rheumatol. 2016; 68 (suppl 10). https://acrabstracts.org/abstract/skin-and-muscle-sodium-concentrations-in-patients-with-systemic-lupus-erythematosus-a-proof-of-concept-study/. Accessed .
  • Tweet
  • Email
  • Print

« Back to 2016 ACR/ARHP Annual Meeting

ACR Meeting Abstracts - https://acrabstracts.org/abstract/skin-and-muscle-sodium-concentrations-in-patients-with-systemic-lupus-erythematosus-a-proof-of-concept-study/

Advanced Search

Your Favorites

You can save and print a list of your favorite abstracts during your browser session by clicking the “Favorite” button at the bottom of any abstract. View your favorites »

All abstracts accepted to ACR Convergence are under media embargo once the ACR has notified presenters of their abstract’s acceptance. They may be presented at other meetings or published as manuscripts after this time but should not be discussed in non-scholarly venues or outlets. The following embargo policies are strictly enforced by the ACR.

Accepted abstracts are made available to the public online in advance of the meeting and are published in a special online supplement of our scientific journal, Arthritis & Rheumatology. Information contained in those abstracts may not be released until the abstracts appear online. In an exception to the media embargo, academic institutions, private organizations, and companies with products whose value may be influenced by information contained in an abstract may issue a press release to coincide with the availability of an ACR abstract on the ACR website. However, the ACR continues to require that information that goes beyond that contained in the abstract (e.g., discussion of the abstract done as part of editorial news coverage) is under media embargo until 10:00 AM ET on November 14, 2024. Journalists with access to embargoed information cannot release articles or editorial news coverage before this time. Editorial news coverage is considered original articles/videos developed by employed journalists to report facts, commentary, and subject matter expert quotes in a narrative form using a variety of sources (e.g., research, announcements, press releases, events, etc.).

Violation of this policy may result in the abstract being withdrawn from the meeting and other measures deemed appropriate. Authors are responsible for notifying colleagues, institutions, communications firms, and all other stakeholders related to the development or promotion of the abstract about this policy. If you have questions about the ACR abstract embargo policy, please contact ACR abstracts staff at [email protected].

Wiley

  • Online Journal
  • Privacy Policy
  • Permissions Policies
  • Cookie Preferences

© Copyright 2025 American College of Rheumatology