Heat shock protects synaptic transmission in flight motor circuitry of locusts.
Neuroreport
; 9(11): 2589-93, 1998 Aug 03.
Article
in En
| MEDLINE
| ID: mdl-9721938
ABSTRACT
We investigated the effects of heat shock on the temperature sensitivity of synaptic transmission in the motor circuit for flight in Locusta migratoria. In heat shocked animals synaptic transmission failed at 5-6 degrees C higher than in control animals and recovery of transmission was more than three times faster upon return to room temperature. We also found that synaptic delay was rendered insensitive to increases in temperature by heat shock. Thus we have shown in the locust that heat shock has important protective effects on synaptic transmission, thereby extending the upper temperature limit for the motor patterns that generate flight. This is the first description of an effect of heat shock that preserves neuronal communication under subsequent stressful conditions.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Synaptic Transmission
/
Flight, Animal
/
Grasshoppers
/
Hot Temperature
/
Motor Neurons
/
Muscles
Limits:
Animals
Language:
En
Journal:
Neuroreport
Journal subject:
NEUROLOGIA
Year:
1998
Document type:
Article
Affiliation country: