Evidence mapPaperPMID 41476191Full record

ArticleScientific reports2025

Effect of 8 days of water-only fasting and exercise on liver, kidney and pancreas functions in middle-aged men.

Pilis Karol, Rojczyk Ewa, Petr Valach, Pilis Anna, Dolibog Patrycja, Gabryś Katarzyna, Pilis Wiesław

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Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Pilis KarolCollegium Medicum Jan Dlugosz University in Czestochowa , Częstochowa, Poland. k.pilis@ujd.edu.pl.
Rojczyk EwaCollegium Medicum Jan Dlugosz University in Czestochowa , Częstochowa, Poland.
Petr ValachFaculty of Education, Center of Physical Education and Sport , University of West Bohemia, Pilsen, Czechia.
Pilis AnnaCollegium Medicum Jan Dlugosz University in Czestochowa , Częstochowa, Poland.
Dolibog PatrycjaDepartment of Biophysics Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland.
Gabryś KatarzynaDoctoral School in Social Sciences , Jagiellonian University , Krakow, Poland.
Pilis WiesławCollegium Medicum Jan Dlugosz University in Czestochowa , Częstochowa, Poland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fasting and physical exercise significantly modify the functioning of the body's internal organs. The aim of the study was to investigate the simultaneous effect of an 8 days of water-only fast and physical exercise on selected functions of the liver, kidneys and pancreas in middle-aged men. The following parameters were determined in the serum and blood of 18 men before and after 8 days of water-only fasting: aspartate aminotransferase (AST), alanine aminotransferase (ALT), uric acid (UA), total protein (TP), albumin (AL), amylase (AY), ferritin (FR), cortisol (C), β-hydroxybutyric acid (β-HB), hematocrit (Ht) and lactate (LA) under conditions of rest and physical exercise. The daily volume of urine excreted, its specific gravity and the concentration of C and AL in it were also determined. Additionally, the De Ritis index, and AL/CR ratio in urine were calculated. The fasting intervention significantly increased the activity of liver enzymes, the concentration of UA, FR, C, β-HB (p < 0.01) as well as the specific gravity of urine (p < 0.05). On the other hand, it decreased AY activity in serum (p < 0.01) and the daily amount of urine excreted (p < 0.05). Physical exercise increased the concentration of TP, AL (p < 0.01) and LA (p < 0.001). Despite many significant changes determining the function of the liver, kidneys and pancreas, no negative health effects caused by either factor were found. The recorded changes only herald potential adverse health effects that may occur if the impact of fasting and/or physical exercise intensifies.

Indexed as

ExerciseFastingKidneyLiverPancreasAdultAlanine TransaminaseAspartate AminotransferasesHumansMaleMiddle AgedUric AcidWaterAlanine TransaminaseAspartate AminotransferasesUric AcidWaterExerciseFastingKidneyLiverMenPancreas

Identifiers

PMID41476191
PMCPMC12830737

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.