[Histochemistry and morphology of the anterior horns of spinal cord in rats after 9-day space flight].
Motoneurons, glial cells and capillaries of anterior horns in cervical and lumbar enlargements of the spinal cord in rats exposed during the mission of US dedicated space biomedical laboratory Spacelab-1 were analyzed histochemically and morphologically. A decrease of cytochromoxidase was found in motoneurons of the lumbar enlargement in the flight rats' spinal cord which, assumingly, evidences for micro-g-induced hypofunction of motoneurons. The comparison of these results with earlier published cytochemical and morphometric data about more widely expressed changes in the bone marrow motoneurons in rats exposed in microgravity for longer than 14 - 22 days infers that the aggravation of hypofunction of spinal cord motoneurons occurs in parallel to the extension of animals' stay in microgravity.
Poliakov
I V
IV
Louri
O
O
Edzherton
V R
VR
Krasnov
I B
IB
D000110:Acetylcholinesterase / Q000032:analysis; D000818:Animals; D003576:Electron Transport Complex IV / Q000032:analysis; D006651:Histocytochemistry; D009046:Motor Neurons / Q000201:enzymology; D051381:Rats; D017207:Rats, Sprague-Dawley; D013026:Space Flight; D013116:Spinal Cord / Q000201:enzymology* / Q000473:pathology*; D013997:Time Factors
D003576:Electron Transport Complex IV; D000110:Acetylcholinesterase
Gistokhimiia i morfologiia perednikh rogov spinnogo mozga krys posle 9-sutochnogo kosmicheskogo poleta.