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Possible relationship between the activity of the adrenal gland and the subcommissural organ in the lizard Lacerta s. sicula Raf. Effects of ACTH Administration during winter.
- Source :
-
Cell and tissue research [Cell Tissue Res] 1978 Aug 25; Vol. 192 (1), pp. 53-65. - Publication Year :
- 1978
-
Abstract
- In order to study the possible functional relationship between the adrenal gland and the subcommissural organ (SCO) in the lizard Lacerta s. sicula Raf., ACTH was administered to some specimens of this species in January when both the adrenal gland and the subcommissural organ have a very low activity. In comparison to untreated controls, the adrenals of animals treated with ACTH showed clear signs of stimulation, presenting enlarged blood vessels, very few lipid droplets, numerous polymorphic mitochondria and abundant tubular smooth endoplasmic reticulum. In addition, a distinct increase in secretory material was observed in the subcommissural cells of specimens treated with ACTH. These cells showed large cisternae of the rough endoplasmic reticulum filled with granular material in the basal region, numerous secretory granules of two types in the paical region and a reduced number of microvilli on the free cell surface. These findings, together with the results of preceding studies, lead the authors to the consideration that steroid hormones might play a role in the regulation of the secretory activity of the SCO.
- Subjects :
- Adrenal Glands physiology
Adrenal Glands ultrastructure
Animals
Cytoplasmic Granules ultrastructure
Lizards anatomy & histology
Male
Subcommissural Organ physiology
Subcommissural Organ ultrastructure
Adrenal Glands drug effects
Adrenocorticotropic Hormone pharmacology
Cold Temperature
Lizards physiology
Neurosecretory Systems drug effects
Seasons
Subcommissural Organ drug effects
Subjects
Details
- Language :
- English
- ISSN :
- 0302-766X
- Volume :
- 192
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Cell and tissue research
- Publication Type :
- Academic Journal
- Accession number :
- 210952
- Full Text :
- https://doi.org/10.1007/BF00231022