TY - JOUR
T1 - Atrial natriuretic peptide, bradykinin, and angiotensin II-like immunoreactivity in the Harderian gland of the terrapin Pseudemys scripta
T2 - Response to osmotic stress
AU - Masini, Maria Angela
AU - Baccari, Gabriella Chieffi
AU - Di Matteo, Loredana
AU - Minucci, Sergio
AU - Chieffi, Giovanni
AU - Uva, Biancamaria
PY - 1996/12/15
Y1 - 1996/12/15
N2 - The Harderian gland of the terrapin Pseudemys scripta has four types of acinar cells. Type IV cells are very similar to the salt secreting cells of the salt secretory glands of various marine vertebrates. The presence and localization of the Ile5-Angiotensin II, Atrial Natriuretic Peptide, and Bradykinin has been investigated by immunohistochemical methods. Immunoreactivity is confined to the type IV cells. Changes in the environmental salinity resulted in different patterns in the immunoreactivity especially after incubation with Ab-Angiotensin II and Ab-Atrial Natriuretic Peptide. Immunoreactive Angiotensin II cells are more numerous in animals maintained in distilled water, when reabsorption of sodium is needed. In contrast, immunoreactive Angiotensin II cells are very few in animals maintained in seawater. On the contrary, the number of immunoreactive cells for Atrial Natriuretic Peptide is high in seawater maintained animals, and weaker in animals in distilled water. The type IV cell may be considered a candidate for ion regulation in the terrapin Harderian gland.
AB - The Harderian gland of the terrapin Pseudemys scripta has four types of acinar cells. Type IV cells are very similar to the salt secreting cells of the salt secretory glands of various marine vertebrates. The presence and localization of the Ile5-Angiotensin II, Atrial Natriuretic Peptide, and Bradykinin has been investigated by immunohistochemical methods. Immunoreactivity is confined to the type IV cells. Changes in the environmental salinity resulted in different patterns in the immunoreactivity especially after incubation with Ab-Angiotensin II and Ab-Atrial Natriuretic Peptide. Immunoreactive Angiotensin II cells are more numerous in animals maintained in distilled water, when reabsorption of sodium is needed. In contrast, immunoreactive Angiotensin II cells are very few in animals maintained in seawater. On the contrary, the number of immunoreactive cells for Atrial Natriuretic Peptide is high in seawater maintained animals, and weaker in animals in distilled water. The type IV cell may be considered a candidate for ion regulation in the terrapin Harderian gland.
UR - http://www.scopus.com/inward/record.url?scp=0030589533&partnerID=8YFLogxK
U2 - 10.1002/(SICI)1097-010X(19961215)276:6<425::AID-JEZ6>3.0.CO;2-P
DO - 10.1002/(SICI)1097-010X(19961215)276:6<425::AID-JEZ6>3.0.CO;2-P
M3 - Article
SN - 0022-104X
VL - 276
SP - 425
EP - 431
JO - Journal of Experimental Zoology
JF - Journal of Experimental Zoology
IS - 6
ER -