G Heldmaier
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Explore the profile of G Heldmaier including associated specialties, affiliations and a list of published articles.
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73
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1203
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Recent Articles
1.
Chouker A, Bereiter-Hahn J, Singer D, Heldmaier G
Pflugers Arch
. 2018 Dec;
471(6):819-828.
PMID: 30569200
For long-duration manned space missions to Mars and beyond, reduction of astronaut metabolism by torpor, the metabolic state during hibernation of animals, would be a game changer: Water and food...
2.
Rismiller P, Heldmaier G
Oecologia
. 2017 Mar;
75(1):125-131.
PMID: 28311845
European green lizards, Lacerta viridis, show a distinct annual cycle in their day and nighttime selected body temperature (T ) levels when monitored under natural photoperiod. The amplitude between daily...
3.
Steinlechner S, Heldmaier G, Becker H
Oecologia
. 2017 Mar;
60(3):401-405.
PMID: 28310703
Photoperiod is the primary environmental cue for seasonality in the Djungarian hamster (Phodopus sungorus). This species reduces its body weight by 30% during winter to reduce its energy requirements. The...
4.
Elvert R, Kronfeld N, Dayan T, Haim A, Zisapel N, Heldmaier G
Oecologia
. 2017 Mar;
119(4):484-492.
PMID: 28307706
Two species of the genus Acomys coexist in arid zones of southern Israel. Acomys russatus is distributed in extremely arid areas, while A. cahirinus is common in both Mediterranean and...
5.
Jastroch M, Giroud S, Barrett P, Geiser F, Heldmaier G, Herwig A
J Neuroendocrinol
. 2016 Oct;
28(11).
PMID: 27755687
Endothermic mammals and birds require intensive energy turnover to sustain high body temperatures and metabolic rates. To cope with the energetic bottlenecks associated with the change of seasons, and to...
6.
Helwig M, Herwig A, Heldmaier G, Barrett P, Mercer J, Klingenspor M
J Neuroendocrinol
. 2012 Sep;
25(2):190-7.
PMID: 22967033
The production of bioactive peptides from biologically inactive precursors involves extensive post-translational processing, including enzymatic cleavage by proteolytic peptidases. Endoproteolytic prohormone-convertases initially cleave the precursors of many neuropeptides at specific...
7.
Polymeropoulos E, Heldmaier G, Frappell P, McAllan B, Withers K, Klingenspor M, et al.
Proc Biol Sci
. 2011 Jun;
279(1726):185-93.
PMID: 21632624
Metabolic rates of mammals presumably increased during the evolution of endothermy, but molecular and cellular mechanisms underlying basal metabolic rate (BMR) are still not understood. It has been established that...
8.
Oelkrug R, Heldmaier G, Meyer C
J Comp Physiol B
. 2010 Aug;
181(1):137-45.
PMID: 20680295
In eutherian mammals, uncoupling protein 1 (UCP1) mediated non-shivering thermogenesis from brown adipose tissue (BAT) provides a mechanism through which arousal from torpor and hibernation is facilitated. In order to...
9.
Braulke L, Heldmaier G, Berriel Diaz M, Rozman J, Exner C
J Exp Zool A Ecol Genet Physiol
. 2010 Jul;
313(9):548-56.
PMID: 20623496
The Djungarian hamster is an animal that is prominent for distinct seasonal adaptations. Cued by shortening day length in autumn they spontaneously exhibit reductions in food intake, body mass (BM),...
10.
Clemens L, Heldmaier G, Exner C
Physiol Behav
. 2009 Apr;
98(1-2):78-84.
PMID: 19393672
Hibernators display severe changes in brain structure during deep torpor, including alterations in synaptic constitution. To address a possible effect on long-term memory, we examined learning behavior and memory of...