Table 1 Human studies on NSW and oxidative stress

From: Night shift work and breast cancer: from etiopathology to precision risk analysis

NSW Effect

Parameter(s)

Outcome

Year

Ref.

↑ Oxidative DNA damage

Urinary 8-OH-dG

↑ 8-OH-dG

2001

68

↑ Oxidative DNA damage linked to stress/depression (females)

Urinary 8-OH-dG

↑ 8-OH-dG

2008

67

↑ Oxidative stress

Erythrocyte SOD activity, plasma MDA

↑ SOD, ↑ MDA

2008

72

↓ Antioxidant capacity

Plasma total antioxidant capacity (TAC)

↓ TAC

2008

77

↑ Oxidative stress

Serum TOS, OSI; ↓ TAS

↑ TOS, ↑ OSI, ↓ TAS

2010

74

↑ Oxidative stress/burnout

Serum SOD1, MDA

↑ SOD1, ↑ MDA

2011

73

↑ Oxidative stress during shifts

Serum TAS, TOS, OSI

↓ TAS, ↑ TOS, ↑ OSI

2012

75

Altered antioxidant response (menopause-dependent)

Erythrocyte/plasma GPx

↑ GPx (pre-M), ↓ GPx (post-M)

2013

79

No overall difference; possible compensatory effect

Plasma TAC, TOS, OSI

↔ OS markers; TAC↔cognition

2013

81

Association with mild depression

Plasma TAC, MDA

↓ TAC (depressed), ↔ MDA

2014

80

↓ DNA repair capacity

OGG1 gene expression

↓ OGG1

2015

70

Circadian variation in oxidative stress

Urinary 8-OH-dG

↑ 8-OH-dG (day sleep vs night sleep)

2016

65

Impaired repair under melatonin suppression

Urinary 8-OH-dG

↑ 8-OH-dG (night work vs night sleep)

2017

66

↑ Lipid peroxidation

Urinary 8-isoprostane

↑ 8-isoP

2017

76

No light effect on oxidative markers

Salivary antioxidant capacity, thiols, CAT

↔ parameters

2018

82

↑ DNA damage, ↓ repair genes

DNA damage (Comet assay), OGG1, ERCC1, XRCC1 expression

↑ DNA damage, ↓ repair

2019

71

↔ Oxidative stress

Serum TOS, TAS

↔ TOS/TAS

2021

83

↑ Endothelial oxidative stress after sleep restriction

Endothelial OS markers

↑ OS, no ↑ antioxidants

2023

78

↑ Oxidative DNA damage persisting post-shift

Serum and urinary 8-OH-dG

↑ 8-OH-dG (during and post NSW)

2023

69

↑ DNA repair during melatonin supplementation

Urinary 8-OH-dG

↑ 8-OH-dG (day sleep), ↔ night shift

2024

30

↑ Baseline OS; improved with antioxidants

Serum D-ROMs

↑ D-ROMs (baseline), ↓ after supplement

2025

84

  1. NSW night shift work, 8-OH-dG 8-hydroxy-2′-deoxyguanosine, 8-oxodG 8-oxo-2′-deoxyguanosine, 8-isoP 8-isoprostane, CAT catalase, GPx glutathione peroxidase, MDA malondialdehyde, OS oxidative stress, OSI oxidative stress index, SOD superoxide dismutase, TAC total antioxidant capacity, TAS total antioxidant status, TOS total oxidant status, D-ROMs derivatives of reactive oxygen metabolites, pre-M premenopausal, post-M postmenopausal. Arrows indicate direction of change relative to day workers ( ↑ increase; ↓ decrease; ↔ no change).