Abundant evidence indicates that ATP and adenosine act as neurotransmitters or co-transmitters, influencing nerve cell physiology in various ways. Therefore, regulation of ATP-metabolizing enzymes is essential for the normal development and function of neuronal tissue. In the present study we have examined the effect of gonadal (OVX) or adrenal (ADX) steroid hormone deprivation on the activity and expression of synaptic membrane ecto-ATPase in three extrahypothalamic brain areas of female rats, primarily not associated with reproductive function. It was shown that OVX significantly increased ecto-ATPase activity and the relative abundance of this enzyme in the hippocampal (Hip) and caudate nucleus (CN), but not in brain stem (BS) membrane preparations. ADX was followed by an upregulation of the enzyme activity and its relative abundance in all the brain areas investigated. The highest enzyme activity and the most profound effects of OVX and ADX were detected in the CN. The results obta...ined indicate that ADX and OVX upregulate the expression of ecto-ATPase, potentiating the production of adenosine in synaptic cleft thus modulating the activity of numerous neurotransmitter systems in distinct areas of the CNS.
TY - JOUR
AU - Nedeljkovic, N
AU - Đorđević, Vesna R.
AU - Horvat, Anica
AU - Nikezic, G
AU - Kanazir, DT
PY - 2000
UR - http://vinar.vin.bg.ac.rs/handle/123456789/2376
AB - Abundant evidence indicates that ATP and adenosine act as neurotransmitters or co-transmitters, influencing nerve cell physiology in various ways. Therefore, regulation of ATP-metabolizing enzymes is essential for the normal development and function of neuronal tissue. In the present study we have examined the effect of gonadal (OVX) or adrenal (ADX) steroid hormone deprivation on the activity and expression of synaptic membrane ecto-ATPase in three extrahypothalamic brain areas of female rats, primarily not associated with reproductive function. It was shown that OVX significantly increased ecto-ATPase activity and the relative abundance of this enzyme in the hippocampal (Hip) and caudate nucleus (CN), but not in brain stem (BS) membrane preparations. ADX was followed by an upregulation of the enzyme activity and its relative abundance in all the brain areas investigated. The highest enzyme activity and the most profound effects of OVX and ADX were detected in the CN. The results obtained indicate that ADX and OVX upregulate the expression of ecto-ATPase, potentiating the production of adenosine in synaptic cleft thus modulating the activity of numerous neurotransmitter systems in distinct areas of the CNS.
T2 - Physiological Research
T1 - Effect of steroid hormone deprivation on the expression of ecto-ATPase in distinct brain regions of female rats
VL - 49
IS - 4
SP - 419
EP - 426
ER -
@article{
author = "Nedeljkovic, N and Đorđević, Vesna R. and Horvat, Anica and Nikezic, G and Kanazir, DT",
year = "2000",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/2376",
abstract = "Abundant evidence indicates that ATP and adenosine act as neurotransmitters or co-transmitters, influencing nerve cell physiology in various ways. Therefore, regulation of ATP-metabolizing enzymes is essential for the normal development and function of neuronal tissue. In the present study we have examined the effect of gonadal (OVX) or adrenal (ADX) steroid hormone deprivation on the activity and expression of synaptic membrane ecto-ATPase in three extrahypothalamic brain areas of female rats, primarily not associated with reproductive function. It was shown that OVX significantly increased ecto-ATPase activity and the relative abundance of this enzyme in the hippocampal (Hip) and caudate nucleus (CN), but not in brain stem (BS) membrane preparations. ADX was followed by an upregulation of the enzyme activity and its relative abundance in all the brain areas investigated. The highest enzyme activity and the most profound effects of OVX and ADX were detected in the CN. The results obtained indicate that ADX and OVX upregulate the expression of ecto-ATPase, potentiating the production of adenosine in synaptic cleft thus modulating the activity of numerous neurotransmitter systems in distinct areas of the CNS.",
journal = "Physiological Research",
title = "Effect of steroid hormone deprivation on the expression of ecto-ATPase in distinct brain regions of female rats",
volume = "49",
number = "4",
pages = "419-426"
}
Nedeljkovic N, Đorđević VR, Horvat A, Nikezic G, Kanazir D. Effect of steroid hormone deprivation on the expression of ecto-ATPase in distinct brain regions of female rats. Physiological Research. 2000;49(4):419-426
Nedeljkovic, N., Đorđević, V. R., Horvat, A., Nikezic, G.,& Kanazir, D. (2000). Effect of steroid hormone deprivation on the expression of ecto-ATPase in distinct brain regions of female rats.
Physiological Research, 49(4), 419-426.
Nedeljkovic N, Đorđević Vesna R., Horvat Anica, Nikezic G, Kanazir DT, "Effect of steroid hormone deprivation on the expression of ecto-ATPase in distinct brain regions of female rats" 49, no. 4 (2000):419-426
