Metabolic suppression in anoxic frog muscle

1998 ◽  
Vol 168 (4) ◽  
pp. 273-280 ◽  
Author(s):  
T. G. West ◽  
R. G. Boutilier
Keyword(s):  
Frog Muscle ◽  
Metabolic Suppression

scholarly journals Potentiometric measurement of membrane action potentials in frog muscle fibres

1966 ◽  
Vol 183 (1) ◽  
pp. 152-166 ◽  
Author(s):  
B. Frankenhaeuser ◽  
B. D. Lindley ◽  
R. S. Smith
Keyword(s):  
Action Potentials ◽  
Frog Muscle ◽  
Muscle Fibres ◽  
Membrane Action ◽  
Potentiometric Measurement

scholarly journals Changes in the natural abundance 13C NMR spectra of intact frog muscle upon storage and caffeine contracture.

1982 ◽  
Vol 257 (6) ◽  
pp. 2741-2743
Author(s):  
M Bárány ◽  
D D Doyle ◽  
G Graff ◽  
W M Westler ◽  
J L Markley
Keyword(s):  
13C Nmr ◽  
Nmr Spectra ◽  
Frog Muscle ◽  
Natural Abundance ◽  
13C Nmr Spectra ◽  
Caffeine Contracture

scholarly journals The relationship between fasting-induced torpor, sleep and waking in laboratory mice

SLEEP ◽  
2021 ◽  
Author(s):  
Yi-Ge Huang ◽  
Sarah J Flaherty ◽  
Carina A Pothecary ◽  
Russell G Foster ◽  
Stuart N Peirson ◽  
...  
Keyword(s):  
Body Temperature ◽  
Rem Sleep ◽  
Brain Activity ◽  
Mammalian Species ◽  
Nrem Sleep ◽  
Laboratory Mice ◽  
State Classification ◽  
Metabolic Suppression ◽  
The Relationship ◽  
Electroencephalogram Eeg

Abstract Study objectives Torpor is a regulated and reversible state of metabolic suppression used by many mammalian species to conserve energy. Whereas the relationship between torpor and sleep has been well-studied in seasonal hibernators, less is known about the effects of fasting-induced torpor on states of vigilance and brain activity in laboratory mice. Methods Continuous monitoring of electroencephalogram (EEG), electromyogram (EMG) and surface body temperature was undertaken in adult, male C57BL/6 mice over consecutive days of scheduled restricted feeding. Results All animals showed bouts of hypothermia that became progressively deeper and longer as fasting progressed. EEG and EMG were markedly affected by hypothermia, although the typical electrophysiological signatures of NREM sleep, REM sleep and wakefulness enabled us to perform vigilance-state classification in all cases. Consistent with previous studies, hypothermic bouts were initiated from a state indistinguishable from NREM sleep, with EEG power decreasing gradually in parallel with decreasing surface body temperature. During deep hypothermia, REM sleep was largely abolished, and we observed shivering-associated intense bursts of muscle activity. Conclusions Our study highlights important similarities between EEG signatures of fasting-induced torpor in mice, daily torpor in Djungarian hamsters and hibernation in seasonally-hibernating species. Future studies are necessary to clarify the effects on fasting-induced torpor on subsequent sleep.

Calcium spikes in frog muscle spindle

1979 ◽  
Vol 11 ◽  
pp. 2
Author(s):  
Fumio Ito ◽  
Tadashi Akaike ◽  
Yukio Komatsu
Keyword(s):  
Muscle Spindle ◽  
Frog Muscle ◽  
Calcium Spikes

Mechanical threshold and inactivation in denervated frog muscle

1973 ◽  
Vol 225 (1) ◽  
pp. 171-176 ◽  
Author(s):  
BD Lindley ◽  
AC Kirby ◽  
SC Stuesse ◽  
Picken
Keyword(s):  
Frog Muscle ◽  
Mechanical Threshold ◽  
Denervated Frog Muscle
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