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CALCIUM-DEPENDENT RELEASE OF PUTATIVE NEUROTRANSMITTERS IN THE CHICK VISUAL-SYSTEM
被引:4
作者
:
BONDY, SC
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV COLORADO,DEPT PHARMACOL,BOULDER,CO 80309
BONDY, SC
HARRINGTON, ME
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV COLORADO,DEPT PHARMACOL,BOULDER,CO 80309
HARRINGTON, ME
机构
:
[1]
UNIV COLORADO,DEPT PHARMACOL,BOULDER,CO 80309
[2]
UNIV COLORADO,MED CTR,DEPT NEUROL,BOULDER,CO 80309
来源
:
NEUROSCIENCE
|
1979年
/ 4卷
/ 10期
关键词
:
D O I
:
10.1016/0306-4522(79)90057-5
中图分类号
:
Q189 [神经科学];
学科分类号
:
071006 ;
摘要
:
The calcium-dependent release of putative neurotransmitters has been studied in the chick brain. Several radioactive compounds were taken up into chick optic lobe homogenates by a high-affinity sodium-dependent transport mechanism. At a concentration of potassium sufficient to cause extensive depolarization, a large proportion of the efflux of the accumulated labeled compounds was calcium dependent. Calcium-stimulated release was antagonized by magnesium. The calcium ionophore, A-23187, enabled calcium-related release to occur in the absence of depolarizing conditions, except after accumulation of [3H]choline. Veratridine was used in order to bring about depolarization in low external potassium concentrations. In this case magnesium was able to replace calcium in inducing the efflux of labeled compounds. Tetrodotoxin inhibited the veratridine-stimulated release of compounds in the presence of calcium. The rate of release of accumulated leucine was affected to a much lesser extent by the presence of calcium. Calcium-stimulated release was also found in homogenates of the optic nerve, indicating that this process is not confined to synapses. Calcium-stimulated release of different compounds varied according to the developmental age and temperature of incubation. This suggests that some dissimilarities in the nature of their release mechanisms exist. Our results suggest that much calcium-dependent efflux is related to presynaptic neurotransmitter release mechanisms. However, a similar release process may exist in non-synaptic regions of the neuron and in glia. Furthermore, the release of non-transmitter compounds under depolarizing conditions can also be enhanced by the presence of calcium. © 1979.
引用
收藏
页码:1521 / 1527
页数:7
相关论文
共 44 条
[41]
Ulbricht W, 1969, Ergeb Physiol, V61, P18
[42]
POTASSIUM-INDUCED RELEASE OF [H-3]GABA AND OF [NORADRENALINE-H-3 FROM NORMAL AND RESERPINIZED RAT-BRAIN CORTEX SLICES - DIFFERENCES IN CALCIUM-DEPENDENCY, AND IN SENSITIVITY TO POTASSIUM-IONS
VARGAS, O
论文数:
0
引用数:
0
h-index:
0
机构:
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
VARGAS, O
DELCARMENDORIADELORENZO, M
论文数:
0
引用数:
0
h-index:
0
机构:
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
DELCARMENDORIADELORENZO, M
SALDATE, MC
论文数:
0
引用数:
0
h-index:
0
机构:
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
SALDATE, MC
ORREGO, F
论文数:
0
引用数:
0
h-index:
0
机构:
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
ORREGO, F
[J].
JOURNAL OF NEUROCHEMISTRY,
1977,
28
(01)
: 165
-
170
[43]
STIMULATED INCORPORATION OF AMINO-ACIDS INTO PROTEINS OF SYNAPTOSOMAL FRACTIONS INDUCED BY DEPOLARIZING TREATMENTS
WEDEGE, E
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
WEDEGE, E
LUQMANI, Y
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
LUQMANI, Y
BRADFORD, HF
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
BRADFORD, HF
[J].
JOURNAL OF NEUROCHEMISTRY,
1977,
29
(03)
: 527
-
537
[44]
NERVE IMPULSE-ENHANCED RELEASE OF AMINO-ACIDS FROM NON-SYNAPTIC REGIONS OF PERIPHERAL AND CENTRAL NERVE TRUNKS OF BULLFROG
WEINREICH, D
论文数:
0
引用数:
0
h-index:
0
机构:
CITY HOPE NATL MED CTR,DIV NEUROSCI,DUARTE,CA 91010
CITY HOPE NATL MED CTR,DIV NEUROSCI,DUARTE,CA 91010
WEINREICH, D
HAMMERSCHLAG, R
论文数:
0
引用数:
0
h-index:
0
机构:
CITY HOPE NATL MED CTR,DIV NEUROSCI,DUARTE,CA 91010
CITY HOPE NATL MED CTR,DIV NEUROSCI,DUARTE,CA 91010
HAMMERSCHLAG, R
[J].
BRAIN RESEARCH,
1975,
84
(01)
: 137
-
142
←
1
2
3
4
5
→
共 44 条
[41]
Ulbricht W, 1969, Ergeb Physiol, V61, P18
[42]
POTASSIUM-INDUCED RELEASE OF [H-3]GABA AND OF [NORADRENALINE-H-3 FROM NORMAL AND RESERPINIZED RAT-BRAIN CORTEX SLICES - DIFFERENCES IN CALCIUM-DEPENDENCY, AND IN SENSITIVITY TO POTASSIUM-IONS
VARGAS, O
论文数:
0
引用数:
0
h-index:
0
机构:
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
VARGAS, O
DELCARMENDORIADELORENZO, M
论文数:
0
引用数:
0
h-index:
0
机构:
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
DELCARMENDORIADELORENZO, M
SALDATE, MC
论文数:
0
引用数:
0
h-index:
0
机构:
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
SALDATE, MC
ORREGO, F
论文数:
0
引用数:
0
h-index:
0
机构:
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
INST NACL CARDIOL, DEPT BIOCHEM, MEXICO CITY, MEXICO
ORREGO, F
[J].
JOURNAL OF NEUROCHEMISTRY,
1977,
28
(01)
: 165
-
170
[43]
STIMULATED INCORPORATION OF AMINO-ACIDS INTO PROTEINS OF SYNAPTOSOMAL FRACTIONS INDUCED BY DEPOLARIZING TREATMENTS
WEDEGE, E
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
WEDEGE, E
LUQMANI, Y
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
LUQMANI, Y
BRADFORD, HF
论文数:
0
引用数:
0
h-index:
0
机构:
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
UNIV LONDON, IMPERIAL COLL SCI & TECHNOL, DEPT BIOCHEM, LONDON SW7 2AZ, ENGLAND
BRADFORD, HF
[J].
JOURNAL OF NEUROCHEMISTRY,
1977,
29
(03)
: 527
-
537
[44]
NERVE IMPULSE-ENHANCED RELEASE OF AMINO-ACIDS FROM NON-SYNAPTIC REGIONS OF PERIPHERAL AND CENTRAL NERVE TRUNKS OF BULLFROG
WEINREICH, D
论文数:
0
引用数:
0
h-index:
0
机构:
CITY HOPE NATL MED CTR,DIV NEUROSCI,DUARTE,CA 91010
CITY HOPE NATL MED CTR,DIV NEUROSCI,DUARTE,CA 91010
WEINREICH, D
HAMMERSCHLAG, R
论文数:
0
引用数:
0
h-index:
0
机构:
CITY HOPE NATL MED CTR,DIV NEUROSCI,DUARTE,CA 91010
CITY HOPE NATL MED CTR,DIV NEUROSCI,DUARTE,CA 91010
HAMMERSCHLAG, R
[J].
BRAIN RESEARCH,
1975,
84
(01)
: 137
-
142
←
1
2
3
4
5
→