Modifications of circadian and circannual rhythms with aging

Whereas biological rhythms are now fairly well documented in young healthy adults, reports in elderly are relatively few for obvious reasons, including the difficulty of setting groups matched in age, sociological and professional background, medical history, and not in need of specific medication. Aging may modify one or several parameters characterizing biological rhythms. The modifications are different from one function to the next, and great care should be given not to mistake changes attributable to the aging process with those resulting from physical and physiological impairment caused by passed environmental aggressions and diseases. Nevertheless, the increasing number of subjects reaching the age of 65 or older, thanks to medical progress, makes necessary establishing time-qualified references values in the aged, as this kind of investigation should lead to an improvement of the conditions and quality of life of elderly subjects.

[1]  B. Pfohl,et al.  Age-related changes in the circadian rhythm of plasma cortisol in man. , 1985, The Journal of clinical endocrinology and metabolism.

[2]  S. Markey,et al.  The correlation between human plasma melatonin levels and urinary 6-hydroxymelatonin excretion. , 1985, Clinica chimica acta; international journal of clinical chemistry.

[3]  P. Zvolský,et al.  The circadian rhythm in plasma melatonin concentration of the urbanized man: the effect of summer and winter time , 1985, Brain Research.

[4]  E. Haus,et al.  Chronobiology of the Hypothalamic-Pituitary-Thyroid Axis , 1992 .

[5]  A. Reinberg,et al.  Circadian and seasonal variations of electrolytes in aging humans. , 1989, Clinica chimica acta; international journal of clinical chemistry.

[6]  F. V. Van Ginkel,et al.  Seasonal variation in serum concentrations of parathyroid hormone in elderly people. , 1983, The Journal of clinical endocrinology and metabolism.

[7]  G. Cornelissen,et al.  Chronobiologic Blood Pressure Assessment from Womb to Tomb , 1992 .

[8]  L. Greenberg,et al.  beta-Adrenergic receptors in aged rat brain: reduced number and capacity of pineal gland to develop supersensitivity. , 1978, Science.

[9]  A. Reinberg,et al.  Age-related changes in both circadian and seasonal rhythms of rectal temperature with special reference to senile dementia of Alzheimer type. , 1986, Gerontology.

[10]  C. Chastang,et al.  Prevalence of magnesium and potassium deficiencies in the elderly. , 1987, Clinical chemistry.

[11]  E. Haus,et al.  Circadian and circannual variations of FSH, LH, testosterone, dehydroepiandrosterone-sulfate (DHEA-S) and 17-hydroxy progesterone (17 OH-Prog) in elderly men and women. , 1985, Endocrinologie.

[12]  C. Pittendrigh,et al.  Circadian systems: longevity as a function of circadian resonance in Drosophila melanogaster. , 1972, Proceedings of the National Academy of Sciences of the United States of America.

[13]  A. Frantz,et al.  The nocturnal rise of human prolactin is dependent on sleep. , 1973, The Journal of clinical endocrinology and metabolism.

[14]  Y. Imai,et al.  Assessment of age-dependent changes in circadian blood pressure rhythm in patients with essential hypertension. , 1991, Journal of hypertension.

[15]  D. Parker,et al.  Sleep-related, nychthermeral and briefly episodic variation in human plasma prolactin concentrations. , 1973, The Journal of clinical endocrinology and metabolism.

[16]  R. Reiter,et al.  Pineal melatonin rhythm: reduction in aging Syrian hamsters. , 1980, Science.

[17]  H. Burger,et al.  CHANGES IN THE PITUITARY‐TESTICULAR SYSTEM WITH AGE , 1976, Clinical endocrinology.

[18]  A. Volpe,et al.  Circadian rhythm of testosterone and prolactin in the ageing. , 1982, Maturitas.

[19]  H. Iguichi,et al.  Age-dependent reduction in serum melatonin concentrations in healthy human subjects. , 1982, The Journal of clinical endocrinology and metabolism.

[20]  E. Haus,et al.  Chronobiology in hematology and immunology. , 1983, The American journal of anatomy.

[21]  L. Wetterberg,et al.  Melatonin in relation to body measures, sex, age, season and the use of drugs in patients with major affective disorders and healthy subjects , 1984, Psychoneuroendocrinology.

[22]  J. Sulon,et al.  Adrenal circadian system in young and elderly human subjects: a comparative study. , 1982, The Journal of endocrinology.

[23]  R. Morris,et al.  Serum concentration of 1,25-dihydroxyvitamin D in the human: diurnal variation. , 1985, The Journal of clinical endocrinology and metabolism.

[24]  M. Blichert-toft,et al.  Secretion of Corticotrophin and Somatototrophin by the Senescent Adenohypophysis in man. , 1975, Acta endocrinologica. Supplementum.

[25]  A. Carayon,et al.  Differences in the seasonal rhythmicity of plasma prolactin in elderly human subjects: detection in women but not in men. , 1983, The Journal of endocrinology.

[26]  G. S. Tune.  Sleep and wakefulness in 509 normal human adults. , 1969, The British journal of medical psychology.

[27]  Preston Fs,et al.  Further sleep problems in airline pilots on world-wide schedules. , 1973 .

[28]  E. Haus,et al.  Biologic Rhythms in Clinical and Laboratory Medicine , 1992, Springer Berlin Heidelberg.

[29]  A. Reinberg,et al.  Patterns of plasma melatonin with ageing and mental condition: stability of nyctohemeral rhythms and differences in seasonal variations. , 1984, Acta endocrinologica.

[30]  J. Sulon,et al.  Adrenocortical hormones, ageing and mental condition: seasonal and circadian rhythms of plasma 18-hydroxy-11-deoxycorticosterone, total and free cortisol and urinary corticosteroids. , 1983, The Journal of endocrinology.

[31]  E. Haus,et al.  Chronobiology of serum iron concentration in subjects of different ages at different geographic locations. , 1987, Endocrinologie.

[32]  J. C. Zimmerman,et al.  Chronobiology of aging: Temperature, sleep-wake rhythms and entrainment , 1982, Neurobiology of Aging.

[33]  Vladutiu Ao.  Letter: C3 standards? , 1975 .

[34]  M. Wills,et al.  SEASONAL VARIATION IN SERUM-25-HYDROXYVITAMIN-D IN THE ELDERLY IN BRITAIN , 1977, The Lancet.

[35]  A. Reinberg,et al.  Seasonal rhythms of plasma gonadotrophins: their persistence in elderly men and women. , 1983, The Journal of endocrinology.

[36]  L. Sackett,et al.  Chronobiological studies of plasma prolactin in women in Kyushu, Japan, and Minnesota, USA. , 1980, The Journal of clinical endocrinology and metabolism.

[37]  E. Haus,et al.  Circadian hematologic time structure in the elderly. , 1989, Chronobiology international.

[38]  L. Murri,et al.  The 24-h pattern of human prolactin and growth hormone in healthy elderly subjects. , 1980, Chronobiologia.

[39]  A. Reinberg,et al.  Differences between young and elderly subjects in seasonal and circadian variations of total plasma proteins and blood volume as reflected by hemoglobin, hematocrit, and erythrocyte counts. , 1986, Clinical chemistry.

[40]  K. Ho,et al.  Aging and growth hormone. , 1993, Hormone research.

[41]  E. Haus,et al.  Circadian rhythm parameters of endocrine functions in elderly subjects during the seventh to the ninth decade of life. , 1989, Chronobiologia.

[42]  A. Carayon,et al.  Age- and mental health-related circadian rhythms of plasma levels of melatonin, prolactin, luteinizing hormone and follicle-stimulating hormone in man. , 1981, The Journal of endocrinology.

[43]  D. Galinsky,et al.  Seasonal variation in serum levels of vitamin D metabolites and parathormone in geriatric patients with fractures in Southern Israel. , 1986, Israel journal of medical sciences.

[44]  R. Chesney,et al.  Seasonal fluctuations in serum concentrations of vitamin D metabolites in normal subjects. , 1981, British medical journal.

[45]  L. Parker,et al.  Decreased adrenal androgen sensitivity to ACTH during aging. , 1981, Metabolism: clinical and experimental.

[46]  Roberto Refinetti,et al.  The circadian rhythm of body temperature , 1992, Physiology & Behavior.

[47]  H. Roffwarg,et al.  Age-related change in the twenty-four-hour spontaneous secretion of growth hormone. , 1972, The Journal of clinical endocrinology and metabolism.

[48]  Michael V. Vitiello,et al.  Circadian temperature rhythms in young adult and aged men , 1986, Neurobiology of Aging.

[49]  R. Rubens,et al.  Testosterone secretion and metabolism in male senescence. , 1972, The Journal of clinical endocrinology and metabolism.

[50]  R. Coombes,et al.  NORMAL PLASMA CALCITONIN: CIRCADIAN VARIATION AND RESPONSE TO STIMULI , 1977, Clinical endocrinology.

[51]  M. Vitiello,et al.  Somatomedin-C levels in healthy young and old men: relationship to peak and 24-hour integrated levels of growth hormone. , 1985, Journal of gerontology.

[52]  E. Haus,et al.  Reference values for chronopharmacology , 1988 .

[53]  C. M. Singer,et al.  Human Melatonin Production Decreases With Age , 1986, Journal of pineal research.

[54]  M. Horan.  Aging, Injury and the Hypothalamic‐Pituitary‐Adrenal Axis , 1994, Annals of the New York Academy of Sciences.

[55]  W C Dement,et al.  “White Paper” on Sleep and Aging , 1982, Journal of the American Geriatrics Society.