Effects of Sleep Quality on Melatonin Levels and Inflammatory Response After Major Abdominal Surgery

Summary

Endogenous melatonin is produced by the pineal gland at night under normal conditions and regulates the sleep-wake cycle. Artificial light administered at night suppresses melatonin production and sleep disturbances are accompanied by abnormal melatonin secretion such as phase delay. Therefore, dramatic disturbances of endogenous rhythms in intensive care unit patients have remarkable effects on melatonin production. In addition to its physiological roles in regulating sleep patterns, melatonin has been demonstrated to provide antiinflammatory effects in experimental models. Although some previous studies have investigated the circadian pattern of melatonin in intensive care unit patients, the investigators think that the present study is the first one that will assess the effects of controlling noise and light on melatonin and inflammatory response after major abdominal surgery.

Timeline

Start

2017-01-01

Primary completion

2017-06-30

Completion

2017-07-01

Publications

• Background Riutta A, Ylitalo P, Kaukinen S. Diurnal variation of melatonin and cortisol is maintained in non-septic intensive care patients. Intensive Care Med. 2009 Oct;35(10):1720-7. doi: 10.1007/s00134-009-1565-6. Epub 2009 Jul 4.
• Background Hu RF, Jiang XY, Zeng YM, Chen XY, Zhang YH. Effects of earplugs and eye masks on nocturnal sleep, melatonin and cortisol in a simulated intensive care unit environment. Crit Care. 2010;14(2):R66. doi: 10.1186/cc8965. Epub 2010 Apr 18.
• Background Seifman MA, Gomes K, Nguyen PN, Bailey M, Rosenfeld JV, Cooper DJ, Morganti-Kossmann MC. Measurement of serum melatonin in intensive care unit patients: changes in traumatic brain injury, trauma, and medical conditions. Front Neurol. 2014 Nov 17;5:237. doi: 10.3389/fneur.2014.00237. eCollection 2014.

Drugs

Indications

No indication recorded.