Reference : Dysthyroidies et dyslipidemies.
Scientific journals : Article
Human health sciences : Endocrinology, metabolism & nutrition
http://hdl.handle.net/2268/12547
Dysthyroidies et dyslipidemies.
French
[fr] Thyroid disorders and dyslipidemias
Deschampheleire, M. [> > > >]
Luyckx, Françoise mailto [Centre Hospitalier Universitaire de Liège - CHU > > Chimie médicale >]
Scheen, André mailto [Université de Liège - ULg > Département des sciences cliniques > Diabétologie, nutrition et maladie métaboliques - Médecine interne générale >]
1999
Revue Médicale de Liège
Hopital de Baviere
54
9
746-50
Yes (verified by ORBi)
0370-629X
Liège
Belgique
[en] Cholesterol, LDL/analysis ; Humans ; Hyperlipidemias/diagnosis/etiology/physiopathology/therapy ; Hyperthyroidism/diagnosis/physiopathology/therapy ; Hypothyroidism/diagnosis/physiopathology/therapy ; Thyrotropin/analysis
[en] While overt thyroid disturbances, characterized by symptoms and/or clinical signs with abnormal serum levels of thyroid hormones, are generally associated with perturbations in the lipid profile, the situation is less clear as far as subclinical thyroid disturbances, defined by isolated abnormalities of thyroid stimulating hormone (TSH) levels, are concerned. In severe hyperthyroidism, a decrease of total cholesterol, LDL cholesterol and apoprotein B concentrations is generally observed. These biological parameters are normalized when appropriate antithyroid treatment is given. In profound hypothyroidism, on the contrary, elevated levels of total and LDL cholesterol levels are observed, which decrease after hormonal replacement. In both cases, the changes in serum levels of HDL cholesterol, triglycerides and lipoprotein (a) are less systematic, both before and after treatment. Lipid abnormalities associated with subclinical thyroid disturbances remain controversial. However, two recent meta-analyses have shown higher LDL cholesterol levels in presence of subclinical hypothyroidism and a significant reduction of such lipid abnormality after administration of thyroxine. Furthermore, they demonstrated a higher prevalence of subclinical hypothyroidism in a population with hypercholesterolaemia when compared to a population with normal cholesterol levels. Finally, a significant reduction in both total and LDL cholesterol concentrations has been reported after administration of thyroxine in a small group of hypercholesterolaemic patients with basal TSH levels in the upper range of normal values. In view of the results of the literature, strategies are proposed to help the clinician in the management of patients with overt or subclinical thyroid disturbances, associated with dyslipidaemia.
http://hdl.handle.net/2268/12547

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