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Weight loss, muscle atrophy and fatigue that occur in chronic disease (eg AIDS, heart failure, COPD) -- > Cachexia. Mediated by TNF alpha, IFN gamma, IL-1 and IL-6 (These stimulate the ubiquitin proteasome pathway to degrade skeletal muscle proteins)
Courtesy: FA 2019 Pg. 228 + uworld
Also "fibroblastic foci" is a big buzzword for IPF, I believe.