A
André Bogdan
Researcher at University of Paris
Publications - 61
Citations - 3128
André Bogdan is an academic researcher from University of Paris. The author has contributed to research in topics: Circadian rhythm & Melatonin. The author has an hindex of 30, co-authored 60 publications receiving 2980 citations.
Papers
More filters
Journal Article
Marked 24-h Rest/Activity Rhythms Are Associated with Better Quality of Life, Better Response, and Longer Survival in Patients with Metastatic Colorectal Cancer and Good Performance Status
Marie-Christine Mormont,Jim Waterhouse,Pascal Bleuzen,Sylvie Giacchetti,Alain Jami,André Bogdan,Joseph Lellouch,Jean-Louis Misset,Yvan Touitou,Francis Lévi +9 more
TL;DR: The individual rest/activity cycle provides a novel independent prognostic factor for cancer patients' survival and tumor response as well as a quantitative indicator for quality of life.
Journal ArticleDOI
Ramadan fasting alters endocrine and neuroendocrine circadian patterns. Meal–time as a synchronizer in humans?
TL;DR: The data show that daytime fasting, modifications in sleep schedule and psychological and social habits during Ramadan induce changes in the rhythmic pattern of a number of hormonal variables.
Journal ArticleDOI
Age and mental health-related circadian rhythms of plasma levels of melatonin, prolactin, luteinizing hormone and follicle-stimulating hormone in man
Yvan Touitou,Michèle Fèvre,Michel Lagoguey,Alain Carayon,André Bogdan,Alain Reinberg,Hervé Beck,François Cesselin,Catherine Touitou +8 more
TL;DR: The circadian rhythms of plasma levels of melatonin, prolactin and LH are not modified in old age nor in dementia, and a positive correlation has been demonstrated in young men between melatonin and LH and betweenmelatonin and Prolactin, but no such correlation could be found in the elderly.
Journal ArticleDOI
Effect of shift work on the night-time secretory patterns of melatonin, prolactin, cortisol and testosterone
TL;DR: This study clearly shows that fast rotating shift-work modifies peak or trough values and rhythm amplitudes of melatonin, prolactin, testosterone and cortisol without any apparent phase shift of these hormones.
Journal ArticleDOI
Evidence of prooxidant and antioxidant action of melatonin on human liver cell line HepG2.
TL;DR: There is strong evidence that, in vitro, melatonin can be both antioxidant and prooxidant on the human liver cell line, depending on the concentration and incubation time.