Arginine-vasopressin immunoreactivity is not altered by photoperiod or gonadal hormones in the Syrian hamster (Mesocricetus auratus)
Abstract
The present study examined whether gonadal hormones or photoperiodic control influence arginine-vasopressin (AVP) immunoreactivity in the Syrian hamster (Mesocricetus auratus) as has been reported in several other rodent species. Male hamsters were castrated or sham-castrated and exposed to LD 14/10 or LD 6/18 for 13 weeks. Photoperiod and castration significantly altered body weight and the levels of circulating testosterone. In sham-castrates, testis width was significantly reduced in hamsters housed in LD 6/18. In contrast, photoperiod and castration produced no detectable alterations in AVP immunoreactivity in various CNS sites including the bed nucleus of the stria terminales, the lateral septum and medial preoptic-anterior hypothalamus when measured by immunocytochemistry and radioimmunoassay of tissue punches. These data provide no evidence that AVP is regulated by either gonadal hormones or photoperiodic mechanisms in the Syrian hamster.
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In hamsters, the lateral septum contains large numbers of V1aRs, but few, if any, AVP-containing fibers or cell bodies have been identified with immunohistochemistry.
“For example, in hamsters the lateral septum contains large numbers of V1aRs but few, if any, AVP containing fibers or cell bodies have been identified with immunohistochemistry [112; 113; 114; 115].”
From Cross-talk among oxytocin and arginine-vasopressin receptors: Relevance for basic and clinical studies of the brain and periphery (2018) · cites this paper as [113]
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References 27 · Cited by 59
- Authors
- Albers, H. E., Rowland, C. M., & Ferris, C. F.
- Affiliations
- Georgia State University (US)
- University of Massachusetts Chan Medical School (US)
- Corresponding author
- Albers, H. Elliott
- Venue
- Brain Research
- Publisher
- Elsevier BV
- Published
- 1991-01
- Volume
- 539
- Issue
- 1
- Pages
- 137-142
- ISSN
- 0006-8993 (ISSN-L)
- OpenAlex
- W2026082126
- Cited by
- 59
- References
- 27
- Citations by year
- 2023: 1 · 2022: 4 · 2021: 1 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 2 · 2015: 2 · 2014: 2 · 2013: 4
- FWCI
- 4.70
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Brain Research (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health (1r01ns023557-01)
- National Institute of Neurological Disorders and Stroke (NS-23557)
- Topics
- Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
- Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Keywords
- vasopressin, photoperiod, gonadal hormones, castration, golden hamster, testosterone, bed nucleus of the stria terminalis, lateral septum, preoptic anterior hypothalamus, neuroendocrine regulation, circadian rhythm
- MeSH terms
- Animals, Arginine Vasopressin, Body Weight, Brain, Darkness, Cricetinae, Light, Male, Mesocricetus, Orchiectomy, Organ Specificity, Reference Values, Testis
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