Inicio > Matemáticas y ciencia > Biologia, ciencias de la vida > L’axe Hypothalamo-Hypophyso-Surrénalien (HHS) face à l’Envenimation
L’axe Hypothalamo-Hypophyso-Surrénalien (HHS) face à l’Envenimation

L’axe Hypothalamo-Hypophyso-Surrénalien (HHS) face à l’Envenimation

Fares Daachi / Sonia Adi-Bessalem

118,11 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Biologia, ciencias de la vida
ISBN:
9786206736394
118,11 €
IVA incluido
Disponible

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L’axe hypothalamo-hypophyso-surrénalien (HHS) est un acteur clé dans l’interaction entre le système neuroendocrinien et le système immunitaire. Cette étude explore l’impact du venin d’Androctonus australis hector (Aah) sur l’activation de l’axe HHS, en fonction des phases jour-nuit. À travers une approche expérimentale, nous analysons les réponses inflammatoires et les dommages oxydatifs induits par l’envenimation, mettant en évidence la modulation exercée par la corticostérone. L’augmentation des taux sériques d’ACTH et de corticostérone indique une activation accrue du HHS, plus marquée durant la phase d’activité. Parallèlement, le venin provoque des dommages oxydatifs et des altérations cardio-hépatiques, amplifiés par une production excessive d’espèces réactives de l’oxygène et du nitrogène. L’implication de la corticostérone dans ces perturbations a été évaluée par un test de suppression à la dexaméthasone. Ces résultats mettent en lumière une réponse inflammatoire et métabolique modulée par les rythmes circadiens, soulignant l’importance du HHS dans la gestion du stress toxique.

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