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Twenty-four-hour rhythm of prolactin depressive patients. 1979

U Halbreich, and L Grunhaus, and M Ben-David

Twenty-four-hour rhythms of serum prolactin (PRL) levels were studied in seven depressive patients. Blood was collected through an indwelling catheter and the PRL level was determined by homologous double antibody radioimmunoassay. Findings showed a different pattern of secretion of prolactin among depressives as compared to the normal 24-hour rhythm of the hormone. A statistically significant elevation of PRL levels during the evening, several hours before sleep, was found. Morning PRL levels were slightly higher and the average increase of PRL level from one determination to the consecutive one was higher among the depressives. It is assumed that there may be a connection between the diurnal rhythmicity of mood, characteristic of vital depression, and the different 24-hour rhythmicity of PRL level.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011388 Prolactin A lactogenic hormone secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). It is a polypeptide of approximately 23 kD. Besides its major action on lactation, in some species prolactin exerts effects on reproduction, maternal behavior, fat metabolism, immunomodulation and osmoregulation. Prolactin receptors are present in the mammary gland, hypothalamus, liver, ovary, testis, and prostate. Lactogenic Hormone, Pituitary,Mammotropic Hormone, Pituitary,Mammotropin,PRL (Prolactin),Hormone, Pituitary Lactogenic,Hormone, Pituitary Mammotropic,Pituitary Lactogenic Hormone,Pituitary Mammotropic Hormone
D002940 Circadian Rhythm The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs or environmental and physiological stimuli. Diurnal Rhythm,Nyctohemeral Rhythm,Twenty-Four Hour Rhythm,Nycthemeral Rhythm,Circadian Rhythms,Diurnal Rhythms,Nycthemeral Rhythms,Nyctohemeral Rhythms,Rhythm, Circadian,Rhythm, Diurnal,Rhythm, Nycthemeral,Rhythm, Nyctohemeral,Rhythm, Twenty-Four Hour,Rhythms, Circadian,Rhythms, Diurnal,Rhythms, Nycthemeral,Rhythms, Nyctohemeral,Rhythms, Twenty-Four Hour,Twenty Four Hour Rhythm,Twenty-Four Hour Rhythms
D003863 Depression Depressive states usually of moderate intensity in contrast with MAJOR DEPRESSIVE DISORDER present in neurotic and psychotic disorders. Depressive Symptoms,Emotional Depression,Depression, Emotional,Depressive Symptom,Symptom, Depressive
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000275 Adjustment Disorders Maladaptive reactions to identifiable psychosocial stressors occurring within a short time after onset of the stressor. They are manifested by either impairment in social or occupational functioning or by symptoms (depression, anxiety, etc.) that are in excess of a normal and expected reaction to the stressor. Anniversary Reaction,Depression, Reactive,Reactive Disorders,Transient Situational Disturbance,Adjustment Disorder,Anniversary Reactions,Depressions, Reactive,Disorder, Adjustment,Disorder, Reactive,Disorders, Adjustment,Disorders, Reactive,Disturbance, Transient Situational,Disturbances, Transient Situational,Reaction, Anniversary,Reactions, Anniversary,Reactive Depression,Reactive Depressions,Reactive Disorder,Situational Disturbance, Transient,Situational Disturbances, Transient,Transient Situational Disturbances
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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