Ultrastructural study of pericytes in the rat supraoptic nucleus.

AUTOR(ES)

Lafarga, M

RESUMO

Pericytes of the supraoptic nucleus of normal rats have been studied with the electron microscope. These cells are morphologically similar to those of pericytes in other parts of the nervous system. The pericytes and their cytoplasmic processes were surrounded by basal membrane. The nucleus contained large masses of heterochromatin. The cytoplasm, less dense than that of the endothelial cells, contained numerous free ribosomes, cisternae of granular endoplasmic reticulum, various dictyosomes of the Golgi complex, isolated microtubules, a few mitochondria, and, occasionally, a diplosome. The presence of numerous lysosomes in some pericytes suggested that the cells are phagocytic even in normal circumstances.

Documentos Relacionados

• An ultrastructural study of the rat's suprachiasmatic nucleus.
• Neurones in the supraoptic nucleus of the rat are regulated by a projection from the suprachiasmatic nucleus.
• Voltage-gated calcium currents in the magnocellular neurosecretory cells of the rat supraoptic nucleus.
• Transient calcium-dependent potassium current in magnocellular neurosecretory cells of the rat supraoptic nucleus.
• Presynaptic actions of morphine: blockade of cholecystokinin-induced noradrenaline release in the rat supraoptic nucleus.