[Morphological changes in the adrenal gland of Japanese quail chicken hatched out in microgravity].

The paper presents results of studying effects of spaceflight factors on the adrenal structure in Japanese quail hatchlings (Coturnix coturnix japonica) incubated and kept alive 4 to 5 days aboard the space station Mir. In comparison with the ground controls, cortical cells in the adrenals of space hatchlings contained copious fat drops, mitochondrias, and significantly dilated cisterns of the endoplasmic reticulum. Accumulation of fat drops evidences lowered cholesterol transformation and disturbed genesis of steroids.

[Morphological study of gastrocnemius muscle in Japanese quail chicks hatched out in space flight].

Slovak experiment Quail SK-6 aboard orbital station Mir in the period of February 20-27, 1999 resulted in hatching out of viable chicks of the Japanese quail. The paper presents morphologic results of investigation of m. gastrocnemius of the chicks after 4-5-d life in space microgravity.

[Dysfunction of eustachian tube. New aspects of diagnostics and treatment].

The authors review and provide a comparative assessment of diagnostic and treatment methods in acoustic tube dysfunction. New etiopathologically sound methods of treating long-term acoustic tube dysfunction are proposed. Therapeutic results are analysed for 36 patients with tuber dysfunction.