Abstract

LIGHT AT NIGHT (LAN) AND ROTATING NIGHT SHIFT: RISK FOR INSULIN RESISTANCE AND OTHER METABOLIC DISEASES

Anjum B., Verma N. S.*, Tiwari S., Naz Q. , Gautam S. and Mahdi A. A.

Abstract

Background: Compromised Quality & Quantity of sleep, exposure oflight at night (LAN) and rotating night shift may be a novel risk factorfor type 2 diabetes, obesity & metabolic diseases due to interferencewith diet, circadian metabolic rhythms, and lifestyle. Present studyaimed to investigate the risk of insulin resistance and metabolicdisorders in rotating night shift nursing professionals. Material &Methods: In the present case-control study, 30 healthy nursingprofessionals, aged 20-40 year, performed day and night shift dutieswere randomly selected from the Trauma Center, GM and AssociatedHospitals, King George Medical University and 30 age sex matched day workers as controlswere also recruited. Results: Insignificant difference (p>0.05) found in fasting blood sugarbetween night workers (78.38 +9.40) and controls (75.14+14.77). Fasting insulin level wasincreased in night workers (4.05+ 2.45) than controls (2.75+ 2.53) and was statisticallysignificant (p<0.05). Insulin resistance was slightly increased among night workers ascompare to controls which was statistically significant (p<0.05). Conclusion: Light at Nightand rotating night shift is associated with increased risk of insulin resistance and lipiddisturbances making them more prone for metabolic diseases in future after several years ofnight shift work.

Keywords: .