Abstract
While brain development during embryogenesis has been extensively studied in precocial birds, there is no information available on altricial birds. Thus, the concentrations of the catecholamines norepinephrine (NE), epinephrine (E), and dopamine (DA), and the dopaminergic metabolites 3,4-dihydroxyphenylacetic acid (DOPAC) and 4-hydroxy-3-methoxyphenylacetic acid (HVA) were determined at several stages during the late embryonic period (E13, E14, E15, E16, E17 and E18) and the day-of-hatch (PO) in the pigeon telencephalon, cerebellum, optic lobe, and brainstem. The concentrations of all catecholamines were higher than those reported in chicken embryos. During embryogenesis, NE, E, DOPAC and HVA concentrations in the various brain parts increased throughout embryonic development until shortly before hatching at which time they decreased. DA, however, continued to increase through hatching in the brainstem, and the changes in DA concentrations varied in several brain parts. In conclusion, catecholamine concentrations in the various brain parts tended to increase with embryonic age, and the concentrations were higher than those in chickens. Furthermore, brain catcholamine metabolism changed at hatch in pigeons.
| Original language | English |
|---|---|
| Pages (from-to) | 551-555 |
| Number of pages | 5 |
| Journal | Zoological science |
| Volume | 20 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 1 2003 |
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All Science Journal Classification (ASJC) codes
- Animal Science and Zoology
Cite this
Changes in catecholamines and dopaminergic metabolites in pigeon brain during development from the late embryonic stage toward hatch. / Yamasaki, Izumi; Takagi, Tomo; Oikawa, Daichi; Koutoku, Tomoyuki; Koga, Yusuke; Tomonaga, Shozo; Tachibana, Tetsuya; Denbow, D. Michael; Furuse, Mitsuhiro.
In: Zoological science, Vol. 20, No. 5, 01.05.2003, p. 551-555.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Changes in catecholamines and dopaminergic metabolites in pigeon brain during development from the late embryonic stage toward hatch
AU - Yamasaki, Izumi
AU - Takagi, Tomo
AU - Oikawa, Daichi
AU - Koutoku, Tomoyuki
AU - Koga, Yusuke
AU - Tomonaga, Shozo
AU - Tachibana, Tetsuya
AU - Denbow, D. Michael
AU - Furuse, Mitsuhiro
PY - 2003/5/1
Y1 - 2003/5/1
N2 - While brain development during embryogenesis has been extensively studied in precocial birds, there is no information available on altricial birds. Thus, the concentrations of the catecholamines norepinephrine (NE), epinephrine (E), and dopamine (DA), and the dopaminergic metabolites 3,4-dihydroxyphenylacetic acid (DOPAC) and 4-hydroxy-3-methoxyphenylacetic acid (HVA) were determined at several stages during the late embryonic period (E13, E14, E15, E16, E17 and E18) and the day-of-hatch (PO) in the pigeon telencephalon, cerebellum, optic lobe, and brainstem. The concentrations of all catecholamines were higher than those reported in chicken embryos. During embryogenesis, NE, E, DOPAC and HVA concentrations in the various brain parts increased throughout embryonic development until shortly before hatching at which time they decreased. DA, however, continued to increase through hatching in the brainstem, and the changes in DA concentrations varied in several brain parts. In conclusion, catecholamine concentrations in the various brain parts tended to increase with embryonic age, and the concentrations were higher than those in chickens. Furthermore, brain catcholamine metabolism changed at hatch in pigeons.
AB - While brain development during embryogenesis has been extensively studied in precocial birds, there is no information available on altricial birds. Thus, the concentrations of the catecholamines norepinephrine (NE), epinephrine (E), and dopamine (DA), and the dopaminergic metabolites 3,4-dihydroxyphenylacetic acid (DOPAC) and 4-hydroxy-3-methoxyphenylacetic acid (HVA) were determined at several stages during the late embryonic period (E13, E14, E15, E16, E17 and E18) and the day-of-hatch (PO) in the pigeon telencephalon, cerebellum, optic lobe, and brainstem. The concentrations of all catecholamines were higher than those reported in chicken embryos. During embryogenesis, NE, E, DOPAC and HVA concentrations in the various brain parts increased throughout embryonic development until shortly before hatching at which time they decreased. DA, however, continued to increase through hatching in the brainstem, and the changes in DA concentrations varied in several brain parts. In conclusion, catecholamine concentrations in the various brain parts tended to increase with embryonic age, and the concentrations were higher than those in chickens. Furthermore, brain catcholamine metabolism changed at hatch in pigeons.
UR - http://www.scopus.com/inward/record.url?scp=0038605163&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0038605163&partnerID=8YFLogxK
U2 - 10.2108/zsj.20.551
DO - 10.2108/zsj.20.551
M3 - Article
C2 - 12777826
AN - SCOPUS:0038605163
VL - 20
SP - 551
EP - 555
JO - Zoological Science
JF - Zoological Science
SN - 0289-0003
IS - 5
ER -