PMID- 35735819 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 2308-3425 (Electronic) IS - 2308-3425 (Linking) VI - 9 IP - 6 DP - 2022 Jun 12 TI - A Cease in Shift Work Reverses Arterial Stiffness but Increases Weight and Glycosylated Hemoglobin A 5-Month Follow-Up in Industry. LID - 10.3390/jcdd9060190 [doi] LID - 190 AB - BACKGROUND: Literature suggests an association between shift work and cardiovascular disease (CVD). Limited evidence is available on how a cessation of shift work affects CVD risk factors. AIM: We investigated whether a five-month plant shutdown affected CVD risk factors in 30 industrial shift workers. METHODS: We collected demographic data, self-reported data on physical activity (PA) and medical history by questionnaire. Pre- and post-plant shutdown, we measured blood pressure (BP), heart rate, lipids, glycosylated hemoglobin (HbA1c) and C-reactive protein (CRP). Additionally, we collected markers of inflammation, Matrix metalloproteinase-9 (MMP-9), Interleukin-6 (IL-6), Monocyte chemoattractant protein-1 (MCP-1), Tumor necrosis factor-alpha (TNF-alpha), P-selectin, Interleukin-1 beta (IL-1beta), and Interleukin-23 (IL-23). We also examined arterial stiffness (central blood pressure, augmentation pressure, and pulse wave velocity) by means of SphygmoCor((R)) (AtCor Medical Pty Ltd., Sydney, Australia). We monitored sleep by actigraphy prior to and after plant shutdown, with additional registration of sleep quality and assessment of insomnia symptoms. RESULTS: After five months of plant shutdown, we found that HbA1c increased by 1.9 mmol/mol, weight by 1 kg and MCP-1 by 27.3 pg/mL, all unexpectedly. The other markers of inflammation did not change during shutdown, but CRP decreased close to significant levels. There were no changes in lipids during follow-up. Pulse-wave velocity (PWV) was reduced from 8.1 m/s (SD = 1.5) to 7.6 m/s (SD = 1.5), p = 0.03. The workers reported fewer signs of insomnia after shutdown. CONCLUSIONS: Our findings suggest that a five-month cessation in shift work increases weight and HbA1c, but also improves insomnia symptoms and reverses arterial stiffening. FAU - Skogstad, Marit AU - Skogstad M AD - National Institute of Occupational Health (STAMI), Box 5330 Majorstuen, 0304 Oslo, Norway. FAU - Aass, Hans Christian D AU - Aass HCD AD - The Blood Cell Research Group, Department of Medical Biochemistry, Oslo University Hospital, 0450 Oslo, Norway. FAU - Lunde, Lars-Kristian AU - Lunde LK AUID- ORCID: 0000-0001-6219-9244 AD - National Institute of Occupational Health (STAMI), Box 5330 Majorstuen, 0304 Oslo, Norway. FAU - Skare, Oivind AU - Skare O AUID- ORCID: 0000-0001-8043-2820 AD - National Institute of Occupational Health (STAMI), Box 5330 Majorstuen, 0304 Oslo, Norway. FAU - Sirnes, Per Anton AU - Sirnes PA AD - Ostlandske Hjertesenter, 1523 Moss, Norway. FAU - Matre, Dagfinn AU - Matre D AUID- ORCID: 0000-0003-0042-6389 AD - National Institute of Occupational Health (STAMI), Box 5330 Majorstuen, 0304 Oslo, Norway. LA - eng GR - No number/Industri Energi and LO Norway/ PT - Journal Article DEP - 20220612 PL - Switzerland TA - J Cardiovasc Dev Dis JT - Journal of cardiovascular development and disease JID - 101651414 PMC - PMC9224692 OTO - NOTNLM OT - arterial stiffening OT - cardiovascular OT - occupational health OT - shift work COIS- The authors declare no conflict of interest. EDAT- 2022/06/24 06:00 MHDA- 2022/06/24 06:01 PMCR- 2022/06/12 CRDT- 2022/06/23 08:53 PHST- 2022/05/10 00:00 [received] PHST- 2022/06/07 00:00 [revised] PHST- 2022/06/08 00:00 [accepted] PHST- 2022/06/23 08:53 [entrez] PHST- 2022/06/24 06:00 [pubmed] PHST- 2022/06/24 06:01 [medline] PHST- 2022/06/12 00:00 [pmc-release] AID - jcdd9060190 [pii] AID - jcdd-09-00190 [pii] AID - 10.3390/jcdd9060190 [doi] PST - epublish SO - J Cardiovasc Dev Dis. 2022 Jun 12;9(6):190. doi: 10.3390/jcdd9060190.