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Effects of Christian Orthodox Fasting Versus Time-Restricted Eating on Plasma Irisin Concentrations Among Overweight Metabolically Healthy Individuals.
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- Author(s): Karras SN;Karras SN; Koufakis T; Koufakis T; Adamidou L; Adamidou L; Dimakopoulos G; Dimakopoulos G; Karalazou P; Karalazou P; Thisiadou K; Thisiadou K; Makedou K; Makedou K; Kotsa K; Kotsa K
- Source:
Nutrients [Nutrients] 2021 Mar 25; Vol. 13 (4). Date of Electronic Publication: 2021 Mar 25.- Publication Type:
Comparative Study; Journal Article- Language:
English - Source:
- Additional Information
- Source: Publisher: MDPI Publishing Country of Publication: Switzerland NLM ID: 101521595 Publication Model: Electronic Cited Medium: Internet ISSN: 2072-6643 (Electronic) Linking ISSN: 20726643 NLM ISO Abbreviation: Nutrients Subsets: MEDLINE
- Publication Information: Original Publication: Basel, Switzerland : MDPI Publishing
- Subject Terms: Religion*; Diet/*methods ; Fasting/*blood ; Fibronectins/*blood ; Overweight/*blood; Female ; Greece ; Humans ; Male ; Middle Aged ; Pilot Projects ; Time
- Abstract: Irisin has been recently identified as an adipomyokine produced during physical activity and involved in the browning of adipose tissue. Despite the emerging evidence suggesting an inverse relationship between irisin plasma concentrations and adverse metabolic outcomes, the exact impact of diet on irisin levels remains obscure. Thus, we aimed to assess the effects of two dietary patterns, Christian Orthodox fasting (OF) and 16:8 time-restricted eating (TRE), on circulating irisin levels among overweight, metabolically healthy, adults. Plasma irisin, glucose and lipid parameters, calcium homeostasis, and anthropometry were evaluated in 29 Orthodox fasters and 14 age and body mass index (BMI)-matched TRE controls (mean age and BMI, 48.8 years and 28.7 kg/m 2 , respectively) at three, distinct time points-before the implementation of the energy-restricted diets (baseline), at the end of the dietary intervention (7 weeks) and 5 weeks after participants returned to their typical dietary habits (12 weeks from baseline). Repeated measures analysis was applied to assess differences between the two groups and the effect of several indices on irisin levels at all three time points. At 12 weeks, the OF group manifested higher irisin concentrations compared with both its baseline values (64.3 ± 54.4 vs. 43.6 ± 42.2 ng/mL, p = 0.01) and those of the TRE group at the same time point (64.3 ± 54.4 vs. 44.2 ± 26.6 ng/mL, p = 0.04). Glycemic, lipid, and anthropometric parameters were not found to correlate with irisin levels. In contrast, parathyroid hormone (PTH) concentrations at 12 weeks correlated with irisin concentrations ( p = 0.04), indicating that lower values of irisin are expected for higher PTH measurements. The findings of this pilot study suggest favorable long-term effects of OF on irisin levels. The interplay between irisin, PTH, and diet warrants further investigation.
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- Contributed Indexing: Keywords: Orthodox fasting; cardiometabolic health; irisin; time-restricted eating
- Accession Number: 0 (Fibronectins)
- Publication Date: Date Created: 20210403 Date Completed: 20210524 Latest Revision: 20210524
- Publication Date: 20221213
- Accession Number: PMC8064431
- Accession Number: 10.3390/nu13041071
- Accession Number: 33806150
- Source:
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