RESUMEN
It is confirmed by several studies that in normal subjects a substance recognized by antibodies anti digoxin exists. Such a substance can be found at increased concentration in pregnant women, neonates, in liver or kidney diseases. A limited increase in concentration has been also registered in patients with essential hypertension and in normotensive patients with a family history of hypertension. Serum or urines rich in such a substance show an increased capacity of inhibiting in vitro the sodium-potassium pump and therefore in reducing also in vivo the capacity of reabsorption of sodium and with it, of water. The investigators interest for this substance has two main reasons: 1) the interference that such a substance has in dosages of digitalis in therapeutic monitorizing; 2) the possibility that such a substance has an important physiological role in hydroelectrolytic metabolism.
Asunto(s)
Digoxina/inmunología , Inhibidores Enzimáticos/inmunología , Hipertensión/genética , Saponinas/inmunología , Adulto , Cardenólidos , Femenino , Humanos , Hipertensión/inmunología , Recién Nacido , Enfermedades Renales/inmunología , Hepatopatías/inmunología , Masculino , Factores SexualesRESUMEN
There are approximately 400 reported cases of lingual thyroid (LT) with a clear cut prevalence in paediatric age. These glands are probably quantitatively deficient and function at marginal levels. Thyro-stimulating hormone (TSH) causes hypertrophy producing local symptoms and in younger patients may induce dangerous obstruction. The presumptive diagnosis is usually made by indirect laryngoscopy and thyroscintigraphy. The authors describe a case of LT in a middle aged patient in whom the anomaly remained undiscovered, being without local symptoms, and permitting a normal life. The discovery was made possible by the development in the last four years of a progressive, frank hypothyroidism, probably induced by silent thyroiditis into the ectopic gland.