Women's health (London, England) · 2026
Determinants of oxidative stress in orthodox Christian women: A comparative analysis of monastic and non-monastic lifestyles.
СтатьяСравнительное исследованиеНазвание и аннотация: Перевод в очереди
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Karras Spyridon N, Michalakis Konstantinos, Al Anouti Fatme, Kypraiou Maria, Vlastos Antonios, Anemoulis Marios, Tekos Fotios, Skaperda Zoi, Vardakas Periklis, Haitoglou Costas, Papanikolaou Evangelos G, Georgopoulos Neoklis, Tzimagiorgis Georgios, Kouretas Demetrios
Аннотация
BACKGROUND: Oxidative stress has been implicated in aging and metabolic dysfunction, modulated by diet, lifestyle, and body composition. While structured dietary practices such as intermittent fasting and plant-based regimens have demonstrated antioxidative benefits, the biological impact of long-term religious fasting remains underexplored. Orthodox Christian fasting, characterized by periodic abstention from animal products and alignment with circadian rhythms, offers a unique naturalistic model for examining redox adaptation in humans.
OBJECTIVES: To identify the physiological and biological factors of oxidative stress markers in Orthodox Christian monastic women compared to age-matched controls, focusing on the roles of adiposity, insulin, vitamin D status, and age.
DESIGN: In this cross-sectional study, 52 Orthodox nuns and 56 women from the general population were assessed.
METHODS: Serum levels of total antioxidant capacity (TAC), reduced glutathione (GSH), and thiobarbituric acid reactive substances were measured. Anthropometric indices (body mass index, body fat percentage, visceral fat), fasting insulin, 25-hydroxyvitamin D (25(OH)D), and age were recorded. Statistical analyses included group comparisons, Spearman correlations, and multivariable linear regression models.
RESULTS: In the monastic group, body fat percentage (beta coefficient = 0.387, p = 0.003) and age (beta coefficient = 0.301, p = 0.014) were associated with TAC levels. Among controls, insulin positively correlated with GSH (ρ = 0.480, p < 0.001) and marginally inversely with TAC (ρ = -0.321, p = 0.060). No significant associations were found between 25(OH)D and oxidative markers in either group.
CONCLUSIONS: Vitamin D and insulin levels were not significantly associated with oxidative stress markers in this cohort. These findings highlight the potential of long-term, culturally structured fasting to modulate redox homeostasis and suggest a complex interplay between age, adiposity, and antioxidant defenses. These findings should be interpreted within the context of a highly specific religious and cultural lifestyle and may not be generalizable to other populations. Further research is needed to elucidate underlying mechanisms and long-term clinical implications.
OBJECTIVES: To identify the physiological and biological factors of oxidative stress markers in Orthodox Christian monastic women compared to age-matched controls, focusing on the roles of adiposity, insulin, vitamin D status, and age.
DESIGN: In this cross-sectional study, 52 Orthodox nuns and 56 women from the general population were assessed.
METHODS: Serum levels of total antioxidant capacity (TAC), reduced glutathione (GSH), and thiobarbituric acid reactive substances were measured. Anthropometric indices (body mass index, body fat percentage, visceral fat), fasting insulin, 25-hydroxyvitamin D (25(OH)D), and age were recorded. Statistical analyses included group comparisons, Spearman correlations, and multivariable linear regression models.
RESULTS: In the monastic group, body fat percentage (beta coefficient = 0.387, p = 0.003) and age (beta coefficient = 0.301, p = 0.014) were associated with TAC levels. Among controls, insulin positively correlated with GSH (ρ = 0.480, p < 0.001) and marginally inversely with TAC (ρ = -0.321, p = 0.060). No significant associations were found between 25(OH)D and oxidative markers in either group.
CONCLUSIONS: Vitamin D and insulin levels were not significantly associated with oxidative stress markers in this cohort. These findings highlight the potential of long-term, culturally structured fasting to modulate redox homeostasis and suggest a complex interplay between age, adiposity, and antioxidant defenses. These findings should be interpreted within the context of a highly specific religious and cultural lifestyle and may not be generalizable to other populations. Further research is needed to elucidate underlying mechanisms and long-term clinical implications.