Evidence map›Paper›PMID 42307015›Full record

ArticleAlcohol, clinical & experimental research2026

Calpain-4 Knockdown Modulates Cholesterol Metabolism and LXRα Nuclear Localization in Experimental Alcohol-Related Liver Disease.

Noriko Kitano, Jiang Li, Sam Taborski, Charis-Marie Vanderpuye, Pooja Muddasani, Sudrishti Chaudhary, Jia-Jun Liu, Silvia Liu, Juliane I Beier, Josepmaria Argemi and 2 more

Abstract read
In one paragraph

Article in Alcohol, clinical & experimental research, 2026. 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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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Noriko KitanoDivision of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Jiang LiDivision of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.ORCID https://orcid.org/0000-0003-4812-2501
Sam TaborskiDivision of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Charis-Marie VanderpuyeDivision of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Pooja MuddasaniDivision of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Sudrishti ChaudharyDivision of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Jia-Jun LiuPharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Silvia LiuPharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Juliane I BeierDivision of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Josepmaria ArgemiDivision of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Ramon BatallerInstitut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain.
Gavin E ArteelDivision of Gastroenterology, Hepatology and Nutrition, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.

Funding

Pittsburgh Liver Research CenterP30DK120531 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Satdarshan Singh Monga · 2019 to 2026
$10.9M
Biomarkers of Alcoholic HepatitisR01AA028436 · NIAAA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ARTEEL, GAVIN E, BENOS, PANAGIOTIS V · 2020 to 2024
$3.0M
Novel Biomarkers for Post-Liver Transplant NASH FibrosisR01DK130294 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ARTEEL, GAVIN E, BENOS, PANAGIOTIS V · 2022 to 2025
$2.8M
NIH HHS P30DK120531NIH HHS R01AA028436NIH HHS R01DK130294
6 · The paper itself

Abstract

backgroundEthanol affects lipid metabolism through multiple pathways, leading to fatty liver development in most alcohol-related liver disease (ALD) patients. Recent studies have highlighted the role of calpain, a calcium-dependent protease, in liver inflammation and fibrosis. Calpain activity is regulated by its essential subunit, Capns1 (calpain-4), which stabilizes and modulates the activity of its catalytic isoforms, calpain-1 and calpain-2. This study investigated calpain's impact on lipid metabolism in ALD.

methodsSix-week-old C57Bl6/J mice were injected with rAAV8 vectors encoding Capns1 shRNA or control vectors. After 4 weeks, mice underwent a 10-day period of ad libitum ethanol consumption, followed by a single gavaged ethanol administration on day 11.

resultsCapns1 knockdown attenuated ethanol-induced microvesicular steatosis. Hepatic triglyceride and free fatty acid levels were not significantly altered, whereas cholesterol levels were significantly reduced in the ethanol group with Capns1 knockdown. Cpt1a expression increased significantly in the ethanol group with Capns1 knockdown. Western blot analysis revealed increased Cleaved-3-hydroxy-3-methyl-glutaryl-coenzyme A reductase (HMGCR) to Pro-HMGCR ratio in Capns1-knockdown mice, suggesting reduced HMGCR activity and suppressed cholesterol biosynthesis. LXRα expression was mainly increased in the cytoplasm in the ethanol group, and following Capns1 knockdown, it was relocalized to the nucleus via its activation. In addition, RNA sequencing analysis indicated that Capns1 knockdown contributes to the reprogramming of ethanol-induced disruptions in metabolic pathways, primarily those involving cholesterol metabolism.

conclusionFurther investigation into the relationship between Capns1 and cholesterol biosynthesis proteins may provide insights into using calpain inhibitors as a therapeutic approach for alcohol-related liver disease.

Indexed as

CalpainCell NucleusCholesterolLiver Diseases, AlcoholicLiver X ReceptorsAnimalsEthanolGene Knockdown TechniquesLipid MetabolismLiverMaleMiceMice, Inbred C57BLCalpainCholesterolEthanolLiver X ReceptorsNr1h3 protein, mousealcohol‐related liver diseasecalpainHMGCRlipid metabolismLXRα

Identifiers

PMID42307015
PMCPMC13273926

What Socratic holds

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Registered trials

None linked

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.