Effect of Day and Night Desflurane Anaesthesia on Melatonin Levels in Rats
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Original Article
P: 190-194
August 2016

Effect of Day and Night Desflurane Anaesthesia on Melatonin Levels in Rats

Turk J Anaesthesiol Reanim 2016;44(4):190-194
1. Dokuz Eylül Üniversitesi Tıp Fakültesi, Anesteziyoloji ve Reanimasyon Anabilim Dalı, İzmir, Türkiye
2. Dokuz Eylül Üniversitesi Tıp Fakültesi, Biyokimya Anabilim Dalı, İzmir, Türkiye
No information available.
No information available
Received Date: 08.09.2014
Accepted Date: 13.03.2016
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ABSTRACT

Objective:

The aim of this study is to investigate the effect of day and night administration of desflurane anaesthesia on melatonin levels in rats.

Methods:

Twenty-four 15-day-old rats were included in the study and were divided into four groups. The rats were anaesthetised between 19:00–01:00 (night group) and 07:00–13:00 (day group) with 5.7% desflurane concentration in 6 L min−1 100% oxygen. 6 L min−1 oxygen was administered to the control groups. At the end of 6 h of anaesthesia, blood samples were taken, and rats were sacrificed. Blood samples were centrifuged and melatonin levels from plasma samples were measured with radioimmunoassay.

Results:

There was a statistically significant difference between the groups (p=0.007). Between group day control and group night control there was a statistically significant difference (p=0.042). Further, there was a significant difference between group day control and night desflurane (p=0.024). We could not find any difference between other groups.

Conclusion:

This study showed that 6 hours of 5.7% desflurane anaesthesia during day and night hours did not significantly change melatonin levels.