{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T14:06:03Z","timestamp":1740146763082,"version":"3.37.3"},"reference-count":37,"publisher":"Public Library of Science (PLoS)","issue":"3","license":[{"start":{"date-parts":[[2022,3,21]],"date-time":"2022-03-21T00:00:00Z","timestamp":1647820800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100006501","name":"Cystic Fibrosis Foundation Therapeutics","doi-asserted-by":"publisher","award":["WINE17G1"],"award-info":[{"award-number":["WINE17G1"]}],"id":[{"id":"10.13039\/100006501","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Cystic Fibrosis Research Inc"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>The genetic disease cystic fibrosis (CF) results when mutations in the gene for the anion channel CFTR reduce CFTR\u2019s activity below a critical level. CFTR activity = N\u00b7P<jats:sub>O<\/jats:sub>\u00b7\u03b3 (number of channels x open probability x channel conductance). Small molecules are now available that partially restore CFTR function with dramatic improvements in health of CF subjects. Continued evaluation of these and other compounds in development will be aided by accurate assessments of CFTR function. However, measuring CFTR activity <jats:italic>in vivo<\/jats:italic> is challenging and estimates vary widely. The most accurate known measure of CFTR activity <jats:italic>in vivo<\/jats:italic> is the \u2018\u03b2\/M\u2019 ratio of sweat rates, which is produced by stimulation with a \u03b2-adrenergic agonist cocktail referenced to the same individual\u2019s methacholine-stimulated sweat rate. The most meaningful metric of CFTR activity is to express it as a percent of normal function, so it is critical to establish \u03b2\/M carefully in a population of healthy control subjects. Here, we analyze \u03b2\/M from a sample of 50 healthy adults in which sweat rates to cholinergic and \u03b2-adrenergic agonists were measured repeatedly (3 times) in multiple, (~50) identified sweat glands from each individual (giving ~20,000 measurements). The results show an approximately 7-fold range, 26\u2013187% of the WT average set to 100%. These provide a benchmark against which other measures of CFTR activity can be compared. Factors contributing to \u03b2\/M variation in healthy controls are discussed.<\/jats:p>","DOI":"10.1371\/journal.pone.0265432","type":"journal-article","created":{"date-parts":[[2022,3,21]],"date-time":"2022-03-21T17:32:20Z","timestamp":1647883940000},"page":"e0265432","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["Variation in CFTR-dependent \u2018\u03b2-sweating\u2019 among healthy adults"],"prefix":"10.1371","volume":"17","author":[{"given":"Lesje","family":"DeRose","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeeyeon","family":"Kim","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miesha","family":"Farahmand","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meagan 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