ArticleJournal of comparative physiology. B, Biochemical, systemic, and environmental physiology2015
Spontaneous daily torpor and fasting-induced torpor in Djungarian hamsters are characterized by distinct patterns of metabolic rate.
Article in Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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.
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.
Who cites it
13 citing papers in PubMed.
- Daily torpor in the Djungarian hamster (Phodopus sungorus) is orchestrated by the suprachiasmatic nucleus: evidence from immediate early gene mapping and nucleus-specific sequencing.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2026Article
- Inhibition of daily torpor in mice requires calories, not just feeding: a potential role for GLP-1.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2026Article
- Daily torpor in summer- and winter-acclimated hamsters: are thermal biology and balancing energy budgets under a different seasonal physiological control?Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2026Article
- Synthetic torpor: advancing metabolic regulation for medical innovations.Nature metabolism · 2025Review
- Torpor expression and patterns in 3 sympatric rodents from Inner Mongolia.Current zoology · 2025Article
- Comparative transcriptomics of the garden dormouse hypothalamus during hibernation.FEBS open bio · 2024Article
- Article
- Comparative transcriptomics of the Djungarian hamster hypothalamus during short photoperiod acclimation and spontaneous torpor.FEBS open bio · 2022Article
- Body Temperature and Activity Adaptation of Short Photoperiod-Exposed Djungarian Hamsters (Frontiers in physiology · 2021Article
- Seasonal Expression of Avian and Mammalian Daily Torpor and Hibernation: Not a Simple Summer-Winter AffairFrontiers in physiology · 2020Review
- Individual variation of daily torpor and body mass change during winter in the large Japanese field mouse (Apodemus speciosus).Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2018Article
- Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Djungarian hamster is a rodent species that expresses both spontaneous daily torpor (SDT) when acclimated to winter conditions as well as fasting-induced torpor (FIT) during summer. In an earlier report we argued that these two thermoregulatory phenomena differ in several parameters. In the present study, we further complete this comparison by showing that metabolic rate patterns differ between both SDT and FIT. SDT bouts were significantly longer and deeper compared to FIT bouts. Additionally, respiratory quotient measures support the view that SDT is entered from a state of energetic balance while FIT appears to be an emergency shutdown of energy demanding thermogenesis due to a shortage of energy sources. In a second experiment, we also confirm that brief periods of food restriction during the hamsters' torpor season increase the frequency of SDT, but do not affect its depth or duration. Although winter-acclimated animals could flexibly alter torpor frequency in order to stay in energetic balance, we also found evidence for torpor expression patterns that resembled FIT, rather than SDT. Consequently, if energetic challenges cannot be compensated with increased SDT expression any longer, the hamsters seem to be driven in a negative energy balance resulting in FIT as a last resort.
Indexed as
Identifiers
25526676What OpenQuestion holds
Registered trials
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 OpenQuestion graph.