PMID- 37849603 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231020 IS - 2168-8184 (Print) IS - 2168-8184 (Electronic) IS - 2168-8184 (Linking) VI - 15 IP - 9 DP - 2023 Sep TI - Evaluating the Serum Levels of Beclin-1 and Mammalian/Mechanistic Target of Rapamycin (mTOR) in Three Different Professional Categories. PG - e45335 LID - 10.7759/cureus.45335 [doi] LID - e45335 AB - BACKGROUND: The possible associations between occupational factors and autophagy - a catabolic process that is evolutionarily conserved and serves as a vital cornerstone in maintaining cellular balance - remain largely unexplored. OBJECTIVES: We assessed serum levels of beclin-1, a principal effector of autophagy, and the mammalian/mechanistic target of rapamycin (mTOR), a protein recognized for its part in suppressing autophagy, within a group of healthy individuals hailing from three different professional fields, each characterized by its unique working conditions. METHODS: A total of 60 men were recruited from three distinct occupational categories: airline pilots, construction laborers, and fitness trainers. Each group consisted of 20 subjects who were selected during routine occupational health appointments. Serum levels of beclin-1 and mTOR were measured using commercially available immunoassays and compared among the three categories. RESULTS: Fitness instructors had the highest concentration of beclin-1 (3.1 +/- 0.9 ng/mL). Construction workers followed with a mean of 2.4 +/- 0.4 ng/mL, while airline pilots had the lowest levels at 1.9 +/- 0.5 ng/mL (one-way analysis of variance, P < 0.001). In terms of mTOR levels, construction workers had the highest concentration (5.9 +/- 1.9 ng/mL), followed by airline pilots (4.4 +/- 1.7 ng/mL). Fitness instructors, on the other hand, had the lowest mTOR levels (3.5 +/- 1.2 ng/mL; one-way analysis of variance, P < 0.001). CONCLUSIONS: Serum levels of autophagy biomarkers can vary among healthy individuals based on their professional roles. Considering the crucial function autophagy serves in both health and disease, further investigations are crucial to deepen our comprehension of the potential implications of autophagy in the field of occupational medicine. CI - Copyright (c) 2023, Minoretti et al. FAU - Minoretti, Piercarlo AU - Minoretti P AD - General Direction, Studio Minoretti, Oggiono, ITA. FAU - Garcia Martin, Angel AU - Garcia Martin A AD - Legal Medicine, Psychiatry and Pathology, Complutense University of Madrid, Madrid, ESP. FAU - Gomez Serrano, Manuel AU - Gomez Serrano M AD - Legal Medicine, Psychiatry and Pathology, Complutense University of Madrid, Madrid, ESP. FAU - Santiago Saez, Andres AU - Santiago Saez A AD - Legal Medicine, Hospital Clinico San Carlos, Madrid, ESP. AD - Legal Medicine, Psychiatry and Pathology, Complutense University of Madrid, Madrid, ESP. FAU - Liano Riera, Miryam AU - Liano Riera M AD - Legal Medicine, Psychiatry and Pathology, Complutense University of Madrid, Madrid, ESP. FAU - Emanuele, Enzo AU - Emanuele E AD - Occupational Health, 2E Science, Robbio, ITA. LA - eng PT - Journal Article DEP - 20230916 PL - United States TA - Cureus JT - Cureus JID - 101596737 PMC - PMC10577503 OTO - NOTNLM OT - autophagy OT - beclin-1 OT - laboratory medicine OT - mammalian/mechanistic target of rapamycin OT - occupational medicine COIS- The authors have declared that no competing interests exist. EDAT- 2023/10/18 06:43 MHDA- 2023/10/18 06:44 PMCR- 2023/09/16 CRDT- 2023/10/18 03:52 PHST- 2023/09/15 00:00 [accepted] PHST- 2023/10/18 06:44 [medline] PHST- 2023/10/18 06:43 [pubmed] PHST- 2023/10/18 03:52 [entrez] PHST- 2023/09/16 00:00 [pmc-release] AID - 10.7759/cureus.45335 [doi] PST - epublish SO - Cureus. 2023 Sep 16;15(9):e45335. doi: 10.7759/cureus.45335. eCollection 2023 Sep.