Effects of Intermittent Fasting on Liver Steatosis and Fibrosis, Serum FGF-21 and Autophagy Markers in Metabolic Dysfunction-Associated Fatty Liver Disease: A Randomized Controlled Trial
| dc.authorid | 0000-0001-5655-8538 | |
| dc.authorid | 0000-0002-1878-9412 | |
| dc.authorid | 0000-0003-4518-5283 | |
| dc.authorid | 0000-0002-0139-676X | |
| dc.contributor.author | Karahan, Tugce Ozlu | |
| dc.contributor.author | Akyuz, Elvan Yilmaz | |
| dc.contributor.author | Karadag, Demet Yilmaz | |
| dc.contributor.author | Yilmaz, Yusuf | |
| dc.contributor.author | Eren, Fatih | |
| dc.date.accessioned | 2026-04-04T18:56:08Z | |
| dc.date.available | 2026-04-04T18:56:08Z | |
| dc.date.issued | 2025 | |
| dc.department | İstanbul Bilgi Üniversitesi | |
| dc.description.abstract | Background: This randomized controlled study sought to determine the effect of intermittent fasting on anthropometric measurements, fibroblast growth factor (FGF)-21, and autophagy markers, as well as on hepatic steatosis and fibrosis levels in overweight or obese patients with metabolic dysfunction-associated fatty liver disease (MAFLD). Methods: Patients were randomly assigned into two groups: received a dietary treatment involving 22-25 kcal/kg/day of energy for 8 weeks and followed the same dietary intervention and a 16:8 pattern. The extent of hepatic steatosis and fibrosis was determined using transient elastography on a FibroScan (R) device. The controlled attenuation parameter (CAP) and liver stiffness measurement (LSM), determined by transient elastography, reflect hepatic steatosis and fibrosis, respectively. In duplicate, serum levels of FGF-21, Beclin-1, and ATG-5 were determined using enzyme-linked immunosorbent assay. Results: The study included 48 patients with a mean age of 48.2 +/- 1.4 years (27 female and 21 male). Improvements in anthropometric measurement and CAP and LSM levels and a decrease in serum FGF-21 levels were found in both groups (p < 0.05). Changes in the CAP and FGF-21 levels were higher in the energy + time-restricted diet group (p < 0.05). Autophagy-related protein (ATG)-5 levels increased only in the energy + time-restricted diet group [(0.74 (0.46-1.29) ng/mL vs. 0.95 (0.73-1.32) ng/mL, p = 0.03]. Conclusions: Intermittent fasting was potentially practical in the management of MAFLD. In particular, changes in FGF-21 and ATG-5 levels indicate the potential of intermittent fasting to regulate metabolic processes and autophagy. However, methodological limitations should be taken into consideration when interpreting the study results. | |
| dc.description.sponsorship | Scope of a doctoral thesis by Health Institutes of Turkiye (TUSEB) [24172]; Recep Tayyip Erdogan University Development Foundation [02025002003275] | |
| dc.description.sponsorship | This study was supported within the scope of a doctoral thesis by Health Institutes of Turkiye (TUSEB) with a grant number of 24172. The APC was funded by Recep Tayyip Erdogan University Development Foundation (Grant Number: 02025002003275). | |
| dc.identifier.doi | 10.3390/life15050696 | |
| dc.identifier.doi | 10.3390/life15050696 | |
| dc.identifier.issn | 2075-1729 | |
| dc.identifier.issue | 5 | |
| dc.identifier.pmid | 40430125 | |
| dc.identifier.scopus | 2-s2.0-105006576466 | |
| dc.identifier.scopusquality | Q1 | |
| dc.identifier.uri | https://doi.org/10.3390/life15050696 | |
| dc.identifier.uri | https://hdl.handle.net/11411/10704 | |
| dc.identifier.volume | 15 | |
| dc.identifier.wos | WOS:001497521400001 | |
| dc.identifier.wosquality | Q1 | |
| dc.indekslendigikaynak | Web of Science | |
| dc.indekslendigikaynak | Scopus | |
| dc.indekslendigikaynak | PubMed | |
| dc.language.iso | en | |
| dc.publisher | Mdpi | |
| dc.relation.ispartof | Life-Basel | |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.snmz | KA_WoS_20260402 | |
| dc.snmz | KA_Scopus_20260402 | |
| dc.subject | Intermittent Fasting | |
| dc.subject | Fibroblast Growth Factor 21 | |
| dc.subject | Autophagy | |
| dc.subject | Fatty Liver | |
| dc.subject | Time-Restricted Eating | |
| dc.title | Effects of Intermittent Fasting on Liver Steatosis and Fibrosis, Serum FGF-21 and Autophagy Markers in Metabolic Dysfunction-Associated Fatty Liver Disease: A Randomized Controlled Trial | |
| dc.type | Article |











