Evidence map›Paper›PMID 28222226›Full record

ArticleJournal of neurochemistry2017

Arctic ground squirrel hippocampus tolerates oxygen glucose deprivation independent of hibernation season even when not hibernating and after ATP depletion, acidosis, and glutamate efflux.

Saurav Bhowmick, Jeanette T Moore, Daniel L Kirschner, Kelly L Drew

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neurochemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.3field-weighted citation impact, top 12% of its field
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

22 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Pre-hibernation diet alters skeletal muscle relaxation kinetics, but not force development in torpid arctic ground squirrels.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Resilience to Injury: A New Approach to Neuroprotection?Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2020
    Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Cardiovascular resistance to thrombosis in 13-lined ground squirrels.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2019
    Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Saurav BhowmickDepartment of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, Alaska, USA.
Jeanette T MooreInstitute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska, USA.
Daniel L KirschnerDepartment of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, Alaska, USA.
Kelly L DrewDepartment of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, Alaska, USA.
University of Alaska Fairbanks · US

Funding

The Administrative CoreP20GM103395 · NIGMS · UNIVERSITY OF ALASKA FAIRBANKS · PI BRIAN M BARNES · 2012 to 2026
$66.1M
Rac-1 mediated superoxide signaling in neuronsU54NS041069 · NINDS · UNIVERSITY OF ALASKA FAIRBANKS · PI DUFFY, LAWRENCE K · 2000 to 2011
$14.1M
Targeting Central A1 Adenosine Receptors Induces Hypothermia for StrokeR15NS070779 · NINDS · UNIVERSITY OF ALASKA FAIRBANKS · PI DREW, KELLY L · 2010 to 2014
$949k
NIGMS NIH HHS P20 GM103395NINDS NIH HHS R15 NS070779NINDS NIH HHS U54 NS041069
6 · The paper itself

Abstract

Cerebral ischemia/reperfusion (I/R) triggers a cascade of uncontrolled cellular processes that perturb cell homeostasis. The arctic ground squirrel (AGS), a seasonal hibernator resists brain damage following cerebral I/R caused by cardiac arrest and resuscitation. However, it remains unclear if tolerance to I/R injury in AGS depends on the hibernation season. Moreover, it is also not clear if events such as depletion of ATP, acidosis, and glutamate efflux that are associated with anoxic depolarization are attenuated in AGS. Here, we employ a novel microperfusion technique to test the hypothesis that tolerance to I/R injury modeled in an acute hippocampal slice preparation in AGS is independent of the hibernation season and persists even after glutamate efflux. Acute hippocampal slices were harvested from summer euthermic AGS, hibernating AGS, and interbout euthermic AGS. Slices were subjected to oxygen glucose deprivation (OGD), an in vitro model of I/R injury to determine cell death marked by lactate dehydrogenase (LDH) release. ATP was assayed using ENLITEN ATP assay. Glutamate and aspartate efflux was measured using capillary electrophoresis. For acidosis, slices were subjected to pH 6.4 or ischemic shift solution (ISS). Acute hippocampal slices from rats were used as a positive control, susceptible to I/R injury. Our results indicate that when tissue temperature is maintained at 36°C, hibernation season has no influence on OGD-induced cell death in AGS hippocampal slices. Our data also show that tolerance to OGD in AGS hippocampal slices occurs despite loss of ATP and glutamate release, and persists during conditions that mimic acidosis and ionic shifts, characteristic of cerebral I/R. Read the Editorial Comment for this article on page 10.

Indexed as

AcidosisAdenosine TriphosphateAnimalsAspartic AcidCell DeathGlucoseGlutamic AcidHibernationHippocampusHypoxia, BrainIn Vitro TechniquesL-Lactate DehydrogenaseRatsRats, Sprague-DawleySciuridaeSeasonsAdenosine TriphosphateAspartic AcidGlucoseGlutamic AcidL-Lactate Dehydrogenasehibernationhippocampal brain slicesin vitroischemialactate dehydrogenase releaseoxygen glucose deprivation

Identifiers

PMID28222226
PMCPMC5479730
OpenAlexW2591245913

What OpenQuestion holds

Textmetadata
LicenceTDM
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 OpenQuestion graph.