Arginine vasotocin concentrations in the supraoptic nucleus of the lizard Anolis carolinensis are associated with reproductive state but not oviposition.

Catherine R Propper, R. E. Jones, R. M. Dores, K. H. Lopez

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Arginine vasotocin (AVT) is a neuropeptide involved in reproductive function in many nonmammalian vertebrates. We determined brain and plasma AVT concentrations during the estrous cycle and oviposition in the lizard Anolis carolinensis. There were no differences in AVT concentrations in the plasma or any brain region during the ovipositional sequence. However, we found that females with an egg in each oviduct and a large pre-ovulatory follicle (diameter > 4.5 mm) in one-ovary had significantly higher AVT concentrations in the supraoptic nucleus (SON) of the hypothalamus than did females with small pre-ovulatory follicles in both ovaries. In a second study, females with an egg in each oviduct and a large pre-ovulatory follicle had significantly greater AVT concentrations in the SON than females with only one oviductal egg and a large pre-ovulatory follicle or females with an egg in each oviduct and a small pre-ovulatory follicle in each ovary. Concentrations of AVT in other brain regions and in the plasma did not differ among these groups. Changes in steroid profiles during estrous and/or direct neural communication between the uterus, ovary, and brain may account for the changes in AVT concentrations seen in the supraoptic nucleus during the estrous cycle of Anolis carolinensis.

Original languageEnglish (US)
Pages (from-to)461-467
Number of pages7
JournalJournal of Experimental Zoology
Volume264
Issue number4
StatePublished - Dec 15 1992
Externally publishedYes

Fingerprint

arginine vasotocin
Anolis carolinensis
lizards
oviposition
oviducts
brain
estrous cycle
neuropeptides
hypothalamus
uterus
animal communication
steroids
vertebrates

ASJC Scopus subject areas

  • Animal Science and Zoology

Cite this

Arginine vasotocin concentrations in the supraoptic nucleus of the lizard Anolis carolinensis are associated with reproductive state but not oviposition. / Propper, Catherine R; Jones, R. E.; Dores, R. M.; Lopez, K. H.

In: Journal of Experimental Zoology, Vol. 264, No. 4, 15.12.1992, p. 461-467.

Research output: Contribution to journalArticle

@article{39bcb50abf9a4aaaaf89e0a243e5deb7,
title = "Arginine vasotocin concentrations in the supraoptic nucleus of the lizard Anolis carolinensis are associated with reproductive state but not oviposition.",
abstract = "Arginine vasotocin (AVT) is a neuropeptide involved in reproductive function in many nonmammalian vertebrates. We determined brain and plasma AVT concentrations during the estrous cycle and oviposition in the lizard Anolis carolinensis. There were no differences in AVT concentrations in the plasma or any brain region during the ovipositional sequence. However, we found that females with an egg in each oviduct and a large pre-ovulatory follicle (diameter > 4.5 mm) in one-ovary had significantly higher AVT concentrations in the supraoptic nucleus (SON) of the hypothalamus than did females with small pre-ovulatory follicles in both ovaries. In a second study, females with an egg in each oviduct and a large pre-ovulatory follicle had significantly greater AVT concentrations in the SON than females with only one oviductal egg and a large pre-ovulatory follicle or females with an egg in each oviduct and a small pre-ovulatory follicle in each ovary. Concentrations of AVT in other brain regions and in the plasma did not differ among these groups. Changes in steroid profiles during estrous and/or direct neural communication between the uterus, ovary, and brain may account for the changes in AVT concentrations seen in the supraoptic nucleus during the estrous cycle of Anolis carolinensis.",
author = "Propper, {Catherine R} and Jones, {R. E.} and Dores, {R. M.} and Lopez, {K. H.}",
year = "1992",
month = "12",
day = "15",
language = "English (US)",
volume = "264",
pages = "461--467",
journal = "Journal of Experimental Zoology Part B: Molecular and Developmental Evolution",
issn = "0022-104X",
publisher = "John Wiley and Sons Inc.",
number = "4",

}

TY - JOUR

T1 - Arginine vasotocin concentrations in the supraoptic nucleus of the lizard Anolis carolinensis are associated with reproductive state but not oviposition.

AU - Propper, Catherine R

AU - Jones, R. E.

AU - Dores, R. M.

AU - Lopez, K. H.

PY - 1992/12/15

Y1 - 1992/12/15

N2 - Arginine vasotocin (AVT) is a neuropeptide involved in reproductive function in many nonmammalian vertebrates. We determined brain and plasma AVT concentrations during the estrous cycle and oviposition in the lizard Anolis carolinensis. There were no differences in AVT concentrations in the plasma or any brain region during the ovipositional sequence. However, we found that females with an egg in each oviduct and a large pre-ovulatory follicle (diameter > 4.5 mm) in one-ovary had significantly higher AVT concentrations in the supraoptic nucleus (SON) of the hypothalamus than did females with small pre-ovulatory follicles in both ovaries. In a second study, females with an egg in each oviduct and a large pre-ovulatory follicle had significantly greater AVT concentrations in the SON than females with only one oviductal egg and a large pre-ovulatory follicle or females with an egg in each oviduct and a small pre-ovulatory follicle in each ovary. Concentrations of AVT in other brain regions and in the plasma did not differ among these groups. Changes in steroid profiles during estrous and/or direct neural communication between the uterus, ovary, and brain may account for the changes in AVT concentrations seen in the supraoptic nucleus during the estrous cycle of Anolis carolinensis.

AB - Arginine vasotocin (AVT) is a neuropeptide involved in reproductive function in many nonmammalian vertebrates. We determined brain and plasma AVT concentrations during the estrous cycle and oviposition in the lizard Anolis carolinensis. There were no differences in AVT concentrations in the plasma or any brain region during the ovipositional sequence. However, we found that females with an egg in each oviduct and a large pre-ovulatory follicle (diameter > 4.5 mm) in one-ovary had significantly higher AVT concentrations in the supraoptic nucleus (SON) of the hypothalamus than did females with small pre-ovulatory follicles in both ovaries. In a second study, females with an egg in each oviduct and a large pre-ovulatory follicle had significantly greater AVT concentrations in the SON than females with only one oviductal egg and a large pre-ovulatory follicle or females with an egg in each oviduct and a small pre-ovulatory follicle in each ovary. Concentrations of AVT in other brain regions and in the plasma did not differ among these groups. Changes in steroid profiles during estrous and/or direct neural communication between the uterus, ovary, and brain may account for the changes in AVT concentrations seen in the supraoptic nucleus during the estrous cycle of Anolis carolinensis.

UR - http://www.scopus.com/inward/record.url?scp=0027121461&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027121461&partnerID=8YFLogxK

M3 - Article

C2 - 1460444

AN - SCOPUS:0027121461

VL - 264

SP - 461

EP - 467

JO - Journal of Experimental Zoology Part B: Molecular and Developmental Evolution

JF - Journal of Experimental Zoology Part B: Molecular and Developmental Evolution

SN - 0022-104X

IS - 4

ER -