The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.
Dynamics of gonadotropin-releasing hormone release during a pulse.
Abstract
The neural components underlying the influence of photoperiod upon reproductive functioning are poorly understood. In this study, we have used immunocytochemistry to examine whether changes in photoperiod may influence specific neuronal cell populations implicated in mediating gonadal steroid feedback actions on GnRH neurons. Short day (SD) exposed ewes in the midluteal stage of the estrous cycle and long day (LD) anestrous ewes were perfused in pairs and hypothalamic brain sections immunostained for tyrosine hydroxylase (TH), neuropeptide Y (NPY), beta-endorphin (betaE), and the estrogen receptor (ER). The number of ER-immunoreactive cells detected within the preoptic area, but not the hypothalamus, was approximately 20% higher (P < 0.05) in LD ewes compared with SD animals. The numbers of TH-immunoreactive neurons comprising the A12, A14, and A15 cell groups were not different between LD and SD ewes, and the percentage of A12 (approximately 15%) and A14 (approximately 25%) neurons expressing ERs was similarly unaffected by photoperiod. The number of betaE neurons detected in the arcuate nucleus was 50% lower (P < 0.05) in SD vs. LD ewes, whereas NPY-immunoreactive cell numbers in the median eminence were 300% higher (P < 0.05). Approximately 3% of NPY neurons in the median eminence, and 10% in the arcuate nucleus, expressed ER immunoreactivity in a photoperiod-independent manner. These studies indicate that changes in photoperiod may regulate ER expression within the preoptic area and suggest that hypothalamic NPY and betaE neurons are involved in the seasonal regulation of reproductive activity in the ewe.
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Cites
The GPR54 Gene as a Regulator of Puberty
Seminara, S. B., Messager, S., Chatzidaki, E. E., Thresher, R. R., Acierno, J. S., Shagoury, J. K., Bo-Abbas, Y., Kuohung, W., Schwinof, K. M., Hendrick, A. G., et al. (2003) · New England Journal of Medicine · doi:10.1056/nejmoa035322 · Cited by 2,557
Hypogonadotropic hypogonadism due to loss of function of the KiSS1-derived peptide receptor GPR54
de Roux, N., Genin, E., Carel, J.-C., Matsuda, F., Chaussain, J.-L., & Milgrom, E. (2003) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1834399100 · Cited by 2,431
Regulation of Kiss1 gene expression in the brain of the female mouse
Smith, J. T., Cunningham, M. J., Rissman, E. F., Clifton, D. K., & Steiner, R. A. (2005) · Endocrinology · doi:10.1210/en.2005-0488 · Cited by 1,102
Han, S.-K., Gottsch, M. L., Lee, K. J., Popa, S. M., Smith, J. T., Jakawich, S. K., Clifton, D. K., Steiner, R. A., & Herbison, A. E. (2005) · The Journal of Neuroscience · doi:10.1523/jneurosci.3328-05.2005 · Cited by 1,036
Topaloglu, A. K., Reimann, F., Guclu, M., Yalin, A. S., Kotan, L. D., Porter, K. M., Serin, A., Mungan, N. O., Cook, J. R., Ozbek, M. N., et al. (2009) · Nature Genetics · doi:10.1038/ng.306 · Cited by 961
Thermoregulation: some concepts have changed. Functional architecture of the thermoregulatory system
Romanovsky, A. A. (2007) · American Journal of Physiology-Regulatory, Integrative and Comparative Physiology · doi:10.1152/ajpregu.00668.2006 · Cited by 786
Lehman, M. N., Coolen, L. M., & Goodman, R. L. (2010) · Endocrinology · doi:10.1210/en.2010-0022 · Cited by 768
Kisspeptin neurons in the arcuate nucleus of the ewe express both dynorphin A and neurokinin B
Goodman, R. L., Lehman, M. N., Smith, J. T., Coolen, L. M., de Oliveira, C. V. R., Jafarzadehshirazi, M. R., Pereira, A., Iqbal, J., Caraty, A., Ciofi, P., et al. (2007) · Endocrinology · doi:10.1210/en.2007-0961 · Cited by 692
Wakabayashi, Y., Nakada, T., Murata, K., Ohkura, S., Mogi, K., Navarro, V. M., Clifton, D. K., Mori, Y., Tsukamura, H., Maeda, K.-I., et al. (2010) · The Journal of Neuroscience · doi:10.1523/jneurosci.5848-09.2010 · Cited by 597
ADACHI, S., YAMADA, S., TAKATSU, Y., MATSUI, H., KINOSHITA, M., TAKASE, K., SUGIURA, H., OHTAKI, T., MATSUMOTO, H., UENOYAMA, Y., et al. (2007) · Journal of Reproduction and Development · doi:10.1262/jrd.18146 · Cited by 580
Cited by
EDC-2: the endocrine society's second scientific statement on endocrine-disrupting chemicals
Gore, A. C., Chappell, V. A., Fenton, S. E., Flaws, J. A., Nadal, A., Prins, G. S., Toppari, J., & Zoeller, R. T. (2015) · Endocrine Reviews · doi:10.1210/er.2015-1010 · Cited by 2,407
Han, S.-K., Gottsch, M. L., Lee, K. J., Popa, S. M., Smith, J. T., Jakawich, S. K., Clifton, D. K., Steiner, R. A., & Herbison, A. E. (2005) · The Journal of Neuroscience · doi:10.1523/jneurosci.3328-05.2005 · Cited by 1,036
Topaloglu, A. K., Reimann, F., Guclu, M., Yalin, A. S., Kotan, L. D., Porter, K. M., Serin, A., Mungan, N. O., Cook, J. R., Ozbek, M. N., et al. (2009) · Nature Genetics · doi:10.1038/ng.306 · Cited by 961
Clarkson, J., & Herbison, A. E. (2006) · Endocrinology · doi:10.1210/en.2006-0787 · Cited by 875
Boehm, U., Bouloux, P.-M., Dattani, M. T., de Roux, N., Dodé, C., Dunkel, L., Dwyer, A. A., Giacobini, P., Hardelin, J.-P., Juul, A., et al. (2015) · Nature Reviews Endocrinology · doi:10.1038/nrendo.2015.112 · Cited by 874
Metadata
- Authors
- Moenter, S. M., Brand, R. M., Midgley, A. R., & Karsch, F. J.
- Venue
- Endocrinology
- Publisher
- The Endocrine Society
- Published
- 1992-01
- Volume
- 130
- Issue
- 1
- Pages
- 503-510
- ISSN
- 0013-7227 (ISSN-L)
- 1945-7170
- OpenAlex
- W2027421516
- Cited by
- 1,244
- References
- 23
- FWCI
- 7.63
- Type
- journal article
- Language
- en
- Open access
- closed
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