Genetic defects resulting in deficiency of thyroid hormone synthesis can be found in about 10% of the patients with permanent congenital hypothyroidism, but the identification of genetic abnormalities in association with the transient form of the disease is extremely rare. We report the case of a boy with transient neonatal hypothyroidism that was undiagnosed in the neonatal screening, associat...

Biliary atresia, malrotation, meconium peritonitis and transient hypothyroidism are occasionally seen in neonatal infants. Biliary atresia associated with malrotation has been reported in some patients with polysplenia syndrome, but biliary atresia associated with meconium peritonitis has only been described by a few investigators. Here we present a case of meconium peritonitis due to malrotati...

All patients identified in the neonatal screening programme for congenital hypothyroidism in Northern Ireland between 1983 and 1993 were reviewed. 131 infants were recalled because of TSH elevation of whom 85 proved to have true permanent congenital hypothyroidism, while 44 had transient TSH elevation and 2 cases died before the diagnosis could be confirmed. TSH elevation at presentation was mi...

Sunitinib, a tyrosine kinase inhibitor, has been approved for the treatment of cancers, such as advanced renal cell carcinoma (RCC). On the other hand, sunitinib treatment is known to induce thyroid dysfunction in a substantial proportion of patients treated for advanced RCC; in fact, hypothyroidism is a frequent complication. However, little is known about sunitinib-induced thyrotoxicosis and ...

To determine the incidence of transient congenital hypothyroidism due to TSH receptor-blocking antibodies, we screened dried blood specimens obtained from 788 neonates identified as having possible congenital hypothyroidism (from a total population of 1,614,166 babies) and 121 controls. A RRA was used. The potency of blood spot TSH binding inhibitory activity was compared with the severity of c...

A 51-year-old woman with chronic lymphocytic thyroiditis showed transient thyrotoxicosis at seven weeks after cessation of steroid therapy for treatment of rheumatoid arthritis. Radioactive iodine uptake was only 3% even in the thyrotoxic state. Aspiration biopsy, performed just before the development of hypothyroidism, revealed histological features compatible with chronic lymphocytic thyroidi...

We describe seven infants with transient congenital hypothyroidism (CH) due to maternal thyroid-stimulating hormone receptor (TSH-R) blocking antibodies (TRAb) identified over three decades of newborn screening for CH in Wales, UK that represents a minimum incidence of 1.6% of CH cases. Infants with transient CH due to maternal TRAb presented with a spectrum of clinical and biochemical hypothyr...

Oxidative stress is known to be one of the major factors to induce germ cell apoptosis. In our earlier research, it was reported that neonatal persistent and transient hypothyroidism cause prevalence of oxidative stress marked by elevated lipid peroxide levels, protein carbonyl contents with decreased antioxidant enzyme levels. Alteration in germ cell population was also marked in persistent an...