Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2017 Aug;152(2):343–352. doi: 10.1016/j.chest.2017.05.004

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2017 The Authors

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Reduced levels of 120-kDa serum SIRT1 (s120S) protein in COPD. A, s120S protein level in serum from healthy subjects and subjects with COPD (NS + SM) (C1-4 disease stage). Protein levels of (B) 102-kDa and (C) 75-kDa SIRT1 with or without COPD. D, Correlation between the s120S protein level and FEV₁/FVC ratio. E, Correlation between the s120S protein level and FEV₁ % predicted. F, s120S protein levels of healthy subjects and patients with COPD (NS + SM) of different stages (C1-2, C3-4). NS = nonsmoking subjects; PC = positive control from healthy subject; SM = smokers without COPD.