Influence of aspirin on aging skeletal muscle: Insights from a cross‐sectional cohort of septuagenarians

Abstract

Aspirin is one of the most commonly consumed cyclooxygenase (COX)‐inhibitors and anti‐inflammatory drugs and has been shown to block COX‐produced regulators of inflammation and aging skeletal muscle size. We used propensity score matching to compare skeletal muscle characteristics of individuals from the Health ABC study that did not consume aspirin or any other COX‐inhibiting drugs (non‐consumers, n = 497, 74 ± 3 year, 168 ± 9 cm, 75.1 ± 13.8 kg, 33.1 ± 7.4% body fat, 37% women, 34% black) to those that consumed aspirin daily (and not any other COX‐inhibiting drugs) and for at least 1 year (aspirin consumers, n = 515, 74 ± 3 year, 168 ± 9 cm, 76.2 ± 13.6 kg, 33.8 ± 7.1% body fat, 39% women, 30% black, average aspirin consumption: 6 year). Subjects were matched (p > 0.05) based on age, height, weight, % body fat, sex, and race (propensity scores: 0.33 ± 0.09 vs. 0.33 ± 0.09, p > 0.05). There was no difference between non‐consumers and aspirin consumers for computed tomography‐determined muscle size of the quadriceps (103.5 ± 0.9 vs. 104.9 ± 0.8 cm2, p > 0.05) or hamstrings (54.6 ± 0.5 vs. 54.9 ± 0.5 cm2, p > 0.05), or quadriceps muscle strength (111.1 ± 2.0 vs. 111.7 ± 2.0 Nm, p > 0.05). However, muscle attenuation (i.e., density) was higher in the aspirin consumers in the quadriceps (40.9 ± 0.3 vs. 44.4 ± 0.3 Hounsfield unit [HU], p < 0.05) and hamstrings (27.7 ± 0.4 vs. 33.2 ± 0.4 HU, p < 0.05). These cross sectional data suggest that chronic aspirin consumption does not influence age‐related skeletal muscle atrophy, but does influence skeletal muscle composition in septuagenarians. Prospective longitudinal investigations remain necessary to better understand the influence of chronic COX regulation on aging skeletal muscle health.

Associations of medicine use and ejection fraction with the coexistence of frailty and sarcopenia in a sample of heart failure outpatients: a cross-sectional study

“…Our results regarding the association of acetylsalicylic acid with higher odds of being frail and/or sarcopenic deserve further research, as cyclooxygenase inhibitors seem to have no effect on muscle mass and frailty status [ 44 , 45 ].…”