[Experience with selenium used to recover adrenocortical function in patients taking glucocorticosteroids long].

AIM: To study the effect of selenium on adrenocortical function in patients taking glucocorticosteroids (GCS) long. SUBJECTS AND METHODS: The study included 56 patients who had been long taking oral GCS for the underlying disease. Adrenocortical function was evaluated by a short synacthen test; adrenal insufficiency (mean cortisol level 8.2 microg/dl) was identified in 52 patients. A study group of patients (n = 35) was given selenium 200 microg/day. A control group (n = 17) with the detected adrenal insufficiency did not take it. All the patients (n = 52) continued to receive standard therapy for the underlying disease, including oral GCS. RESULTS: Adrenal function was reexamined 6 months later; the two paired-samples t-test indicated a statistically significant increase in cortisol levels up to 23.20 +/- 4.2 microg/dl (p < or = 0.05) in the patient group receiving selenium in addition to the basic therapy. In the control group, the function did not recover (cortisol levels were 8.6 and 9.8 microg/dl at baseline and at 6 months, respectively; p < or = 0.05). CONCLUSION: The experience with selenium 200 microg/day given long to patients with adrenal insufficiency caused by the long-term use of GCS shows that the agent is effective in recovering adrenocortical function.

[Assessment of some oxidative stress parameters in bronchial asthma patients beyond add-on selenium supplementation].

The goal of this study was to investigate the effect of selenium deficit replenishment in patients with bronchial asthma (BA) on manifestations of oxidative stress and conditions of the antioxidant system (AOS). The need of correction of selenium deficit in BA-patient is determined by the increased needs in antioxidants due to chronic inflammatory process responcible for pathogenesis of BA. Latvia and also Eastern Finland, Byelorussia, some regions of Ukraine, some regions of the NorthWestern Russia, New Zealand belong to endemic areas with marked selen deficit in soils and foodstuff. Twenty patients (7 men and 13 women) with selen deficit and verified diagnosis of BA have been examined. In addition to basic therapy all patients received organic selenium SelenoPRECISE, ("PharmaNord") 200 microg daily for 16 weeks. This caused statistically significant increase of plasma selenium from 50.94+/-7.58 microg/l to 63.59+/-10.87 microg/l (p<0.001), the increase of selenium-dependent glutathione peroxidase (from 38.64+/-10.72 U/g Hb to 58.57+/-14.64 U/g Hb, p<0.001). Treatment of patients with selenium also normalized parameters charecterizing oxidative stress (chemiluminescence). The use of selenium in addition to basic therapy allows to abolish or alternate manifestations of oxidative stress by correcting the antioxidant system.