PubMed · 4306756
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H Yoshida. 1969. [Endocrinology].. https://pubmed.ncbi.nlm.nih.gov/4306756/
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The aim of this study was to determine whether definite diet changes affect adrenocortical activity and/or adrenal androgen metabolism. A controlled experimental diet study with four consecutive diet periods (repeated measure design) was carried out in six healthy adult volunteers. Four nearly isoenergetic diets, two normal (N) moderately protein-rich, one protein-rich (P), and one low protein lactovegetarian (L), were fed. At the end of each 5-day diet period a blood sample and two 24-h urine specimens were obtained from each subject. Plasma levels of dehydroepiandrosterone sulfate (DHEAS) were elevated with diet L (6.5 +/- 1.4 vs. 5.3 +/- 1.1 mumol/L; P < 0.05) compared to diet N, whereas other plasma hormones, including cortisol and insulin-like growth factor I did not vary markedly. A marked increase of 60% was seen in the urinary 24-h output of 3 alpha-androstanediol glucuronide with diet P. Urinary 24-h excretion rates for C peptide, free cortisol, DHEAS, and total 17-ketosteroid sulfates were clearly reduced with diet L compared to those with diet N or P. Our results show that a lactovegetarian diet can reduce adrenocortical activity (at least after a short term diet change). In addition, this vegetarian nutrition leads to a particular metabolic situation (elevated plasma DHEAS and reduced urinary DHEAS output) that usually is characteristic of fasting. Peripheral androgen metabolism as reflected by urinary 3 alpha-androstanediol glucuronide appears to be influenced only by high protein intake (diet P). Further research (controlled dietary long term investigation) is required 1) to validate whether the effects of diet on adrenocortical activity represent sustained endocrine changes and 2) to elucidate the underlying mechanism.
We attempted to determine compounds in human urine which, differing from 17-OHCS, show high values in healthy individuals, decrease with failing health, clearly decline with advancing disease and finally reach very low values in severe disease. We have initially established that 17-ketosteroid sulfates (17-KS-S) are the compound we were searching for. Hans Selye regarded stress as the rate of wear and tear and 17-OHCS as its indicator, but we considered that, differing from inanimate objects, living organisms consume energy to cope with stress and "repair" "wear and tear" of the tissue "and recover" its function. This concept led us to determine the organism's requirements for two mechanisms: "Wear and tear" which could be represented by the secretion of 17-OHCS (Selye), and "repair and recovery", which could be determined by the amounts of 17-KS-S (Nishikaze) derived from dehydroepiandrosterone sulfate (DHEA-S), a product of the adrenal cortex, which enhances neuronal survival, long-term memory, maintains the function of peripheral tissues (skin, bone-muscle, gastro-intestinal and vascular system etc.), increases lipid metabolism, protein anabolism (antiobesity, antiatherosclerosis etc.) and stimulates the immune system. We hold that the stress response is a series of biological processes, beginning with CRH.ACTH and Catecholamines, Cortisol (17-OHCS), followed by Insulin, acting as an anabolic agent and finally DHEA-S (17-KS-S) induces tissue repair utilizing the energy produced. Low levels of urinary 17-KS-S are observed not only in cases of low cortisol or catecholamines secretion, but also when these are elevated. Normalization of these levels is followed by an increase in 17-KS-S excretion. Balanced changes of hormones, such as 17-KS-S, 17-OHCS, Cortisol, Catecholamines and Insulin are seen in a normal organism under healthy lifestyles and disruption of the balance induces an apparent reduction in 17-KS-S. From this perspective, we hope to research the interrelations between biologically antagonistic 17-KS-S and 17-OHCS as well as other agents, focusing particularly on 17-KS-S, which represents a contact point for mind and body, which is kept in healthy balance by appropriate sleeping and exercise programs along with adequate food intake.
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