Effect of high-dose vitamin D3 on hospital length of stay in critically ill patients with vitamin D deficiency: the VITdAL-ICU randomized clinical trial.

Importance: Low vitamin D status is linked to increased mortality and morbidity in patients who are critically ill. It is unknown if this association is causal.

Objective: To investigate whether a vitamin D3 treatment regimen intended to restore and maintain normal vitamin D status over 6 months is of health benefit for patients in ICUs.

[Addison's disease as a rare cause of chronically elevated liver enzymes].

Common causes of chronically elevated serum liver enzymes include fatty liver disease, chronic viral hepatitis, autoimmune hepatitis, or hereditary metabolic disorders. Adrenocortical insufficiency can also cause elevated liver enzymes. Since 1990 only 11 cases have been reported.

Variable bone mass recovery in hyperthyroid bone disease after radioiodine therapy in postmenopausal patients.

Objectives: Long-term follow-up of postmenopausal hyperthyroid females after radioiodine therapy, since hyperthyroidism is known to cause impressive bone loss which may increase the risk of bone fractures.

Methods: Bone mineral density (BMD) and biochemical parameters of bone metabolism in hyperthyroid postmenopausal patients were investigated before and 2 years after radioiodine therapy and compared with euthyroid age-matched controls.

Results: At baseline, the incidence of low BMD with t-scores more than 2.

Plasma levels of parathyroid hormone-related peptide are elevated in hyperprolactinemia and correlated to bone density status.

Osteopenia is an important clinical manifestation of hyperprolactinemia. Bone loss in these patients has mainly been attributed to concomitant deficiency of gonadal hormones rather than to hyperprolactinemia per se. Parathyroid hormone-related peptide (PTHrP) is expressed in human mammary tissue, and elevated circulating PTHrP levels as well as concomitant hypercalcemia have been described during lactation.