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11β‐Hydroxysteroid dehydrogenase and the brain: Not (yet) lost in translation
Seckl, Jonathan
Journal of internal medicine, 2024-01, Vol.295 (1), p.20-37
[Revista revisada por pares]
England: Blackwell Publishing Ltd
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Título:
11β‐Hydroxysteroid dehydrogenase and the brain: Not (yet) lost in translation
Autor:
Seckl, Jonathan
Materias:
11-beta-Hydroxysteroid Dehydrogenase Type 1 - metabolism
;
11-beta-Hydroxysteroid Dehydrogenase Type 2 - metabolism
;
11β‐hydroxysteroid dehydrogenase
;
Aged
;
ageing
;
Aging
;
Aldosterone
;
Amygdala
;
Animal models
;
Animals
;
Blood pressure
;
Brain
;
Brain - metabolism
;
Brain stem
;
cognition
;
Cognitive ability
;
Corticosterone
;
Cortisone
;
Dehydrogenase
;
Dehydrogenases
;
Forebrain
;
Geriatrics
;
glucocorticoid
;
Glucocorticoids
;
Health risks
;
Humans
;
Hydroxysteroids
;
Kidneys
;
Mental disorders
;
Metabolic disorders
;
Metabolism
;
Mice
;
mineralocorticoid
;
Mineralocorticoid receptors
;
Reductases
;
Rodents
Es parte de:
Journal of internal medicine, 2024-01, Vol.295 (1), p.20-37
Notas:
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-3
content type line 23
ObjectType-Review-1
Descripción:
11‐beta‐hydroxysteroid dehydrogenases (11β‐HSDs) catalyse the conversion of active 11‐hydroxy glucocorticoids (cortisol, corticosterone) and their inert 11‐keto forms (cortisone, 11‐dehydrocorticosterone). They were first reported in the body and brain 70 years ago, but only recently have they become of interest. 11β‐HSD2 is a dehydrogenase, potently inactivating glucocorticoids. In the kidney, 11β‐HSD2 generates the aldosterone‐specificity of intrinsically non‐selective mineralocorticoid receptors. 11β‐HSD2 also protects the developing foetal brain and body from premature glucocorticoid exposure, which otherwise engenders the programming of neuropsychiatric and cardio‐metabolic disease risks. In the adult CNS, 11β‐HSD2 is confined to a part of the brain stem where it generates aldosterone‐specific central control of salt appetite and perhaps blood pressure. 11β‐HSD1 is a reductase, amplifying active glucocorticoid levels within brain cells, notably in the cortex, hippocampus and amygdala, paralleling its metabolic functions in peripheral tissues. 11β‐HSD1 is elevated in the ageing rodent and, less certainly, human forebrain. Transgenic models show this rise contributes to age‐related cognitive decline, at least in mice. 11β‐HSD1 inhibition robustly improves memory in healthy and pathological ageing rodent models and is showing initial promising results in phase II studies of healthy elderly people. Larger trials are needed to confirm and clarify the magnitude of effect and define target populations. The next decade will be crucial in determining how this tale ends – in new treatments or disappointment.
Editor:
England: Blackwell Publishing Ltd
Idioma:
Inglés
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