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Record W4413128402 · doi:10.1038/s41467-026-73534-x

Dehydration promotes intracellular lipid synthesis and accumulation

2025· preprint· en· W4413128402 on OpenAlexaff
Joshua Carty, Jazlyn A. Selvasingh, Yvonne Zuchowski, Hyuck-Jin Nam, Clothilde Pénalva, Gayani Nanayakkara, Erin Q. Jennings, Kelsey Voss, Edith T. Adame, John T. Tossberg, Wei Sheng Yap, Meiling Melzer, Olga M. Viquez, A. Scott McCall, Elizabeth Piotrowski, Ryoichi Bessho, Shirong Cao, Katrina L. Leaptrot, Alexandra C. Schrimpe‐Rutledge, Simona G. Codreanu, Stacy D. Sherrod, John A. McLean, Jonathan B. Trapani, Matthew A. Cottam, Ma Wan, Deepti Shrivastava, Don A. Delker, Matthew H. Wilson, Clinton M. Hasenour, Louise Lantier, Irene Chernova, Jamey D. Young, Volker H. Haase, José Pablo Vázquez‐Medina, Dylan K. Kosma, Peter Kim, Jean‐Philippe Cartailler, Mingzhi Zhang, Roy Zent, Raymond C. Harris, Jason A. Watts, Andrew S. Terker, Fabian Bock, Jeffrey C. Rathmell, Aylin R. Rodan, Juan Pablo Arroyo

Bibliographic record

VenueNature Communications · 2025
Typepreprint
Languageen
FieldMedicine
TopicAdipose Tissue and Metabolism
Canadian institutionsHospital for Sick ChildrenUniversity of Toronto
FundersNational Institutes of Health
KeywordsDehydrationIntracellularLipid metabolismChemistryMitochondrionLipid accumulationLipid dropletLipid oxidationGlutamineBiochemistryBiophysicsCell biologyBiologyAmino acid

Abstract

fetched live from OpenAlex

Abstract Lipids can be considered a water reservoir used to offset dehydration stress as their oxidation by the mitochondria generates water. However, whether dehydration and the ensuing hypertonic stress directly regulate lipid synthesis is unknown. We found that hypertonic stress decreases cellular oxygen consumption, increases intracellular lipid synthesis, and favors glutamine oxidation as a carbon precursor for lipid synthesis via remodeling mitochondrial metabolism. These findings provide a mechanism whereby cellular dehydration leads to intracellular lipid accumulation, functionally linking water availability to lipid storage.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.003
Threshold uncertainty score0.011

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0030.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.046
GPT teacher head0.358
Teacher spread0.312 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2025
Admission routes1
Has abstractyes

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Same venueNature Communications→Same topicAdipose Tissue and Metabolism→French-language works237,207→