17 research outputs found

    Comparative Effects of Di-(2-ethylhexyl)phthalate and Di-(2-ethylhexyl)terephthalate Metabolites on Thyroid Receptors: In Vitro and In Silico Studies

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    Plasticizers added to polyvinylchloride (PVC) used in medical devices can be released into patients’ biological fluids. Di-(2-ethylhexyl)phthalate (DEHP), a well-known reprotoxic and endocrine disruptor, must be replaced by alternative compounds. Di-(2-ethylhexyl) terephthalate (DEHT) is an interesting candidate due to its lower migration from PVC and its lack of reprotoxicity. However, there is still a lack of data to support the safety of its human metabolites with regard to their hormonal properties in the thyroid system. The effects of DEHT metabolites on thyroid/hormone receptors (TRs) were compared in vitro and in silico to those of DEHP. The oxidized metabolites of DEHT had no effect on T3 receptors whereas 5-hydroxy-mono-(ethylhexyl)phthalate (5-OH-MEHP) appeared to be primarily an agonist for TRs above 0.2 µg/mL with a synergistic effect on T3. Monoesters (MEHP and mono-(2-ethylhexyl)terephthalate, MEHT) were also active on T3 receptors. In vitro, MEHP was a partial agonist between 10 and 20 µg/mL. MEHT was an antagonist at non-cytotoxic concentrations (2–5 µg/mL) in a concentration-dependent manner. The results obtained with docking were consistent with those of the T-screen and provide additional information on the preferential affinity of monoesters and 5-OH-MEHP for TRs. This study highlights a lack of interactions between oxidized metabolites and TRs, confirming the interest of DEHT

    La rétrocession officinale (rôle du pharmacien et exemple des érythropoïétines)

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    LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

    Place des incrétinomimétiques et des gliptines dans la prise en charge du diabète de type 2

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    LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

    Bronchopneumopathie chronique obstructive (prise en charge thérapeutique et perspectives)

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    LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

    Place des antithrombotiques dans la prise en charge de la maladie thromboembolique (exemple de l'utilisation de l'enoxaparine sodique (Lovenox®) à l'hôpital St-Pierre ( la Martinique))

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    La thrombose veineuse profonde est l une des complications redoutées de l immobilisation, notamment chez les personnes âgées. A l hôpital de Saint-Pierre (en Martinique), la prise en charge préventive de cette pathologie thromboembolique se fait par l administration d une HBPM, l enoxaparine sodique (Lovenox®). Cette classe médicamenteuse nécessite une surveillance clinique et biologique spécifique pour la sécurité du patient.LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

    Prise en charge thérapeutique de l'insuffisance rénale chronique

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    LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

    Observance des traitements et règles d'hygiène de vie chez les patients atteints de pathologies cardiaques

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    LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

    La polyarthrite rhumatoïde (le point sur la thérapeutique)

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    LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF

    Causes et traitements des ulcères gastro-duodénaux

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    LILLE2-BU Santé-Recherche (593502101) / SudocSudocFranceF
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