Changes of Ultrastructure and Atrial Specific Granules of Atrial Myocytes in Dehydrated and Rehydrated Rats / 대한해부학회지
Korean Journal of Anatomy
;
: 567-578, 2001.
Artigo
em Coreano
| WPRIM
| ID: wpr-649646
ABSTRACT
The ultrastructural changes of atrial myocytes were examined by transmission electron microscopy and ultrastructural morphometry by dehydrated and rehydrated rat. Sprague-Dawley rats weighting 210 to 240 gm were fed with dried diet and without water for 3, 7 and 9 days, and then with standard diet and tap water for 9 days. On day 7 of dehydration, morphological changes in atrial myocytes were mainly the alterations of mitochondria and myofibrils, and the appearance of vacuoles with myelin structures and vesicular typed granules. On day 9 of dehydration, cells containing the myelin structures were increased than those on day 7 of dehydration. On day 3 to 5 rehydration, many atrial myocytes were damaged. On day 9 rehydration, most atrial myocytes were similar to control groups. The numbers of atrial specific granules were increased in all dehydrated groups and decreased in 1 day and 3 day rehydrated groups then that of normal atria. The numbers of atrial specific granules were similar level to normal animals in 5 day and 9 day rehydrated groups.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Vacúolos
/
Água
/
Ratos Sprague-Dawley
/
Células Musculares
/
Desidratação
/
Microscopia Eletrônica de Transmissão
/
Dieta
/
Hidratação
/
Mitocôndrias
/
Bainha de Mielina
Limite:
Animais
Idioma:
Coreano
Revista:
Korean Journal of Anatomy
Ano de publicação:
2001
Tipo de documento:
Artigo
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