Evidence mapPaperPMID 41498907Full record

ArticleGeroScience2026

Aging kidney is associated with metabolic rewiring and epigenetic reprogramming.

Pragney Deme, Rhea Bhargava, Heddwen L Brooks, Norman J Haughey, Prerna Kumar

Abstract read
PubMed Publisher
In one paragraph

Article in GeroScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
field-weighted citation impact
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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

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

5 authors.

Pragney DemeDepartment of Physiology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA.
Rhea BhargavaDepartment of Medicine Nephrology and Hypertension, School of Medicine, Tulane University, New Orleans, LA, 70112, USA.
Heddwen L BrooksDepartment of Physiology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA.
Norman J HaugheyDepartment of Physiology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA.
Prerna KumarDepartment of Physiology, Tulane University School of Medicine, 1430 Tulane Ave, New Orleans, LA, 70112, USA. pkumar@tulane.edu.ORCID https://orcid.org/0000-0002-5989-1878

Funding

Pilot Projects ProgramP30GM145498 · TULANE UNIVERSITY OF LOUISIANA · 2025 to 2025
$1.1M
Aging and estrogen-dependent HDAC2 regulation: implications in cardiac injuryR03AG075396 · NIA · TULANE UNIVERSITY OF LOUISIANA · PI Prerna Kumar · 2024 to 2024
$76k
National Institute of Allergy and Infectious Diseases 4R00AI162843-04NIA NIH HHS R03 AG075396NIA NIH HHS R03AG075396NIDA NIH HHS DA052272NIGMS NIH HHS P30 GM145498NIGMS NIH HHS P30GM145498NIMH NIH HHS MH131219
6 · The paper itself

Abstract

Understanding the direct connections between metabolism and chromatin dynamics may uncover potential mechanisms involved in the aging process of renal physiology. Despite known differences in incidence and aging renal disease, how biological aging intersects with renal metabolism and epigenetics in a sex-specific context remains poorly understood. Here, we determined the effect of age on renal metabolic pathways and metabolite cofactors of epigenetic modifiers in a sex-specific manner. We measured metabolites in kidney homogenates from young and aged mice by HPLC-TripleTOF (LC-MS). The major metabolic adaptations observed with aging include increased glycolysis, decreased fatty acid oxidation, mitochondrial dysfunction, oxidative stress, and impaired metabolic waste clearance in 24-month-old (aged) mice compared to 4-month-old (young) sex-matched mice. Additionally, we found elevated levels of methylation and acetylation of intermediate metabolites also known as 'epimetabolites' in aged mice. Furthermore, age-related alterations were detected in metabolites (acetyl-coenzyme A, flavin adenine dinucleotide, and α-ketoglutarate) that are essential cofactors for the activities of epigenetic enzymes. Sex-specific changes were observed with age such as, significantly enhanced amino acid catabolism and tryptophan metabolism and reduced lysophospholipase activity and ammonia clearance in aged female vs aged male mice. Our results reveal age- and sex-associated alterations in renal metabolic pathways, characterized by an increase in epigenetically modified intermediate metabolites with aging. These findings suggest a complex interplay between renal metabolomics and epigenetics and offer new insights into the mechanisms underlying sex-specific renal physiology of aging kidneys.

Indexed as

EpimetabolitesMetabolite cofactors for epigenetic enzymesMetabolomicsRenal agingSex differences

Identifiers

PMID41498907

What Socratic holds

Textmetadata
Read underepoch 390

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.