Chronic intranasal oxytocin increases acoustic eavesdropping and adult neurogenesis DOI Creative Commons
Patrick K. Monari,

Zachary J. Herro,

Jessica Bymers

et al.

Hormones and Behavior, Journal Year: 2023, Volume and Issue: 156, P. 105443 - 105443

Published: Oct. 21, 2023

Social information gathering is a complex process influenced by neuroendocrine-modulated neural plasticity. Oxytocin (OXT) key regulator of social decision-making processes such as gathering, it contextually modulates salience and can induce long-term structural plasticity, including neurogenesis. Understanding the link between OXT-induced plasticity communicative awareness crucial, particularly because OXT being considered for treatment pathologies. We investigated role chronic OXT-dependent in attention to novel manipulating duration time following cessation intranasal allow functional integration adult-born neurons resulting from treatment. Following 3-week delay, (IN-OXT) increased approach behavior both female male mice towards aggressive vocal playbacks two unseen conspecifics, while no effect was observed after 3-day delay. Immature ventral hippocampus females males treated with IN-OXT indicating potential association hippocampal neurogenesis approach/acoustic eavesdropping. The less mouse approached, higher level Contrary expectations, correlation not affected IN-OXT, suggesting that other mechanisms underlie effects on approach. Furthermore, we found negative freezing behavior. Overall, our results demonstrate IN-OXT-induced influence further reinforced anxiety.

Language: Английский

Investigation of Off-Season Breeding Effects on Egg-Laying Performance, Serum Biochemical Parameters, and Reproductive Hormones in Zhedong White DOI Creative Commons

Jiaqiao Zhu,

Yonggang Ma,

Waseem Ali

et al.

Veterinary Sciences, Journal Year: 2025, Volume and Issue: 12(2), P. 179 - 179

Published: Feb. 17, 2025

Off-season breeding is a method of encouraging animals through manual intervention to reproduce during the non-breeding season. The egg-laying period Zhedong white goose usually starts from September and ends in April following year. During summer months May August, with long daylight hours high temperatures, geese rest do not lay eggs. This study explored effects off-season on egg production performance, serum biochemical indicators, hormone secretion goose. experiment was divided into normal off-seasonal breeding. results suggested that peak laying lasted 3 months, 15.62% higher than control group group. had 4.13% fertilization rate November (laying period) group, hatching hatched eggs fertilized 2.77% 2.3% higher, respectively, experimental showed significantly P, ALB (albumin), TG (triglyceride), TC (total cholesterol) levels; AST (glutamic oxalacetic transaminase) activity; CREA (creatinine) BUN (blood urea nitrogen) levels at different time points. LH (luteinizing hormone), FSH (follicle-stimulating P4 (progesterone), E2 (estradiol) were T3 (triiodothyronine) T4 (Tetraiodothyronine) points cycle. gene expression GnRH (gonadotropin releasing hormone) hypothalamus; GnRH, FSH, pituitary; ovary lower VIP (vasoactine intestinal peptide) PRL (prolactin) pituitary Thus, may prolong improve thus enhancing economic benefits

Language: Английский

Citations

0
Effect of immunization against OPN5 on the reproductive performance in Shan Partridge ducks under different photoperiods DOI Creative Commons
Sui Liufu, Jianqiu Pan,

Jun-feng Sun

et al.

Poultry Science, Journal Year: 2024, Volume and Issue: 103(4), P. 103413 - 103413

Published: Feb. 6, 2024

Photoperiod is an important environmental factor that influences seasonal reproduction behavior in birds. Birds translate photoperiodic information into neuroendocrine signals through deep brain photoreceptors (DBPs). OPN5 has been considered candidate DBPs involved regulating We found could mediate light to regulate the follicle development ducks. In this study, we further verified effect of on follicular Shan Partridge ducks by immunizing against extracellular domain (ECD) OPN5. investigated specific regulatory mechanism photoperiod mediated reproductive activity The trial randomly divided 120 3 groups with different treatments: immunization group was done at d0, d15, d30, and d40 1 mL vaccine containing protein (thus 1, 0.5, 0.5 mg OPN5-KLH protein), control (CS CL groups) injected same time dose OPN5-uncontained blank vaccine. CS (900 lux), (600 lux) lasted for 40 d 12 L:12 D photoperiods, respectively. Then, CS, OPN5, subsequently received D, 17 L:7 treatments 33 d, were caged constant rooms feeding conditions each group, free water, limited (150 g per duck day). Duck serum tissue samples collected 40, 62, 73 (n = 12). It before prolonged light, (group OPN5) strong intensity CS) higher than egg production. Subsequent production rose about as immunization, while lower. Group increased ovarian index ducks, both (extended light) thickness granular layer promoted secretion E2, P4, LH, PRL hormones. Compared mRNA level expression hypothalamus 62 (P < 0.05). gene or patterns GnRH, TRH, TSHβ, DIO2, THRβ, VIP, positively correlated whereas GnIH DIO3 negatively results showed activate corresponding transmembrane receptors promote up-regulate TSHβ then HPG axis-related genes facilitate addition, experiment, prolonging enhancing also enhance development, but not significant Our will offer beneficial data more supportive shreds evidence favor elucidating role relation photoperiods reproduction.

Language: Английский

Citations

3
Beyond a biased binary: A perspective on the misconceptions, challenges, and implications of studying females in avian behavioral endocrinology DOI Creative Commons
Kristina O. Smiley, Sara E. Lipshutz, Abigail A. Kimmitt

et al.

Frontiers in Physiology, Journal Year: 2022, Volume and Issue: 13

Published: Sept. 21, 2022

For decades, avian endocrinology has been informed by male perspectives and male-focused research, leaving significant gaps in our understanding of female birds. Male birds have favored as research subjects because their reproductive behaviors are considered more conspicuous physiology is presumably less complex than However, should not be ignored, behavior essential for the propagation all species. Endocrine made much progress last 20 years, but a substantial disparity knowledge between persists. In this perspective piece, we provide examples why ornithology neglected endocrinology, propose considerations field laboratory techniques to facilitate future studies. We highlight recent advances that showcase importance challenge historic applications an oversimplified, male-biased lens. further species which differs from stereotypically described birds, warning investigators pitfalls approaching with binary bias. hope piece will inspire engage comprehensive studies close gap sexes, look beyond when drawing conclusions about what 'male' versus 'female' biology.

Language: Английский

Citations

13
Neuroendocrine Mechanisms Underlying Reproductive Decision Making Across Taxa DOI

Mary R. Elson,

Nora H. Prior, Alexander G. Ophir

et al.

Masterclass in neuroendocrinology, Journal Year: 2024, Volume and Issue: unknown, P. 157 - 191

Published: Jan. 1, 2024

Language: Английский

Citations

2
Scope and adaptive value of modulating aggression over breeding stages in a competitive female bird DOI
Elizabeth George,

A. M. Weber,

Kimberly A. Rosvall

et al.

Behavioral Ecology, Journal Year: 2024, Volume and Issue: 35(4)

Published: May 20, 2024

Abstract In seasonally breeding animals, the costs and benefits of territorial aggression should vary over time; however, little work thus far has directly examined scope adaptive value individual-level plasticity in across stages. We explore these issues using tree swallow (Tachycineta bicolor), a single-brooded bird species which females compete for limited nesting sites. measured aggressiveness nearly 100 within 3 different stages: (1) shortly after territory-establishment, (2) during incubation, (3) while caring young chicks. Based on timing, direction, magnitude behavioral changes between stages, we used k-means clustering to categorize each female’s behavior into “plasticity type.” then tested whether type stage-specific varied with key performance metrics. About 40% decreased consecutive stages some degree, consistent population-level patterns. 33% exhibited comparatively plasticity, moderate low levels all Finally, 27% displayed steep decreases increases stages; exhibiting this pattern had significantly lower body mass parenting, they tended hatch fewer eggs, lowest observed overwinter survival rates. Other patterns among-stage were not associated performance. These results reveal substantial among-individual variation may reflect diverse solutions trade-offs current reproduction future survival.

Language: Английский

Citations

2
Neuroendocrine and behavioral response to testosterone-induced female song in canaries (Serinus canaria) DOI

Evangeline M. Rose,

Chelsea M. Haakenson, Katherine A. Stennette

et al.

Physiology & Behavior, Journal Year: 2022, Volume and Issue: 250, P. 113782 - 113782

Published: March 18, 2022

Language: Английский

Citations

9
OPN5 Regulating Mechanism of Follicle Development Through the TSH-DIO2/DIO3 Pathway in Mountain Ducks Under Different Photoperiods DOI Creative Commons
Sui Liufu, Jianqiu Pan,

Jun-feng Sun

et al.

Frontiers in Physiology, Journal Year: 2022, Volume and Issue: 13

Published: June 1, 2022

Photoperiod is an important environmental factor that influence seasonal reproduction behavior in bird. Birds translates photoperiodic information into neuroendocrine signals through deep brain photoreceptors (DBPs). OPN5 has been considered as candidate DBPs involving regulation of birds. However, little known about the effect non-seasonal breeding Thus, we pondered on whether regulating follicular development TSH-DIO2/DIO3 system responds to different photoperiods laying ducks. As ideal bird, a total 120 mountain ducks were randomly divided three groups and treated respectively photoperiod: group S (8 L:16D), C (17 L:7D), L (24 L:0D). The caged fully enclosed shelter with same feeding conditions for each group, free water limited (150 g per duck day). Samples collected from at d 0, 5, 8, 20, 35 (n = 8). 24 h photoperiod had highest rate lowest feed-to-egg ratio, while 8 ratio. Long-day significantly increased ovarian index GnRH, LH, E2, P4 levels serum; short-day testosterone serum. Compared photoperiod, long-day or highly mRNA level protein expression hypothalamus (p < 0.05). gene patterns TRH, TSHβ, DIO2, THRβ, VIP, PRL positively correlated OPN5, whereas GnIH DI O 3 negatively OPN5. results revealed mediated light pathway, duration improved efficiency HPG axis promote

Language: Английский

Citations

8
The Ancestral Modulation Hypothesis: Predicting Mechanistic Control of Sexually Heteromorphic Traits Using Evolutionary History DOI Creative Commons
Andrew P. Anderson, Suzy C. P. Renn

The American Naturalist, Journal Year: 2023, Volume and Issue: 202(3), P. 241 - 259

Published: April 12, 2023

AbstractAcross the animal kingdom there are myriad forms within a sex across, and even within, species, rendering concepts of universal traits moot. The mechanisms that regulate development these trait differences varied, although in vertebrates, common pathways involve gonadal steroid hormones. Gonadal steroids often associated with heteromorphic development, where found at higher circulating levels is one involved for sex. Occasionally, situations which or monomorphic another We propose verbal hypothesis, ancestral modulation hypothesis (AMH), uses evolutionary history trait-particularly ancestrally possessed values-to predict regulatory pathway governs expression. AMH predicts genomic architecture appears first to resolve sexual conflict an initially trait. This takes advantage existing sex-biased signals, pathway, generate heteromorphism. In cases other experiences pressure new phenotype, will co-opt by altering its signal match original high-trait-value describe integrated needed produce this pattern what expected outcomes be given present framework as testable scientific community investigate create further engagement analysis both ultimate proximate approaches

Language: Английский

Citations

4
Vernal growth of vocal control nucleus Area X, but not HVC, precedes gonadal recrudescence in wild black‐capped chickadees (Poecile atricapillus) DOI Creative Commons
Broderick. M. B. Parks, Kyle McVea, Leslie S. Phillmore

et al.

Journal of Neuroendocrinology, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 20, 2024

Abstract In temperate‐zone songbirds, the neuroanatomical changes which occur in advance of breeding, including growth nuclei vocal control system, are believed to downstream gonadal recrudescence. However, evidence from wild birds is mixed. Here, we captured black‐capped chickadees early spring (March–April), summer (August–September), and winter (December–January); addition measuring volumes two (Area X HVC), also quantified indicators reproductive state (gonads circulating steroids). Most had regressed gonads low levels steroids, indicating these were not yet full breeding condition. still a significantly larger Area than birds, while HVC did differ size across groups. Using data previously published seasonal study (Phillmore et al., Developmental Neurobiology, 2015;75:203–216), then compared our group 3–4 weeks later spring. While volume between studies, males Phillmore al. (2015) HVC. Taken together, this suggests that vernal occurs ahead chickadees, overall system at least partially breeding‐associated upregulation hypothalamic–pituitary–gonadal axis.

Language: Английский

Citations

1
Male and female red-cheeked cordon bleus sing similar yet individualistic songs DOI

Evangeline M. Rose,

Avery J. Scofield,

Autumn M. Wenstrom

et al.

The Journal of the Acoustical Society of America, Journal Year: 2024, Volume and Issue: 155(3), P. 1909 - 1915

Published: March 1, 2024

Birdsong is an excellent system for studying complex vocal signaling in both males and females. Historically, most research captivity has focused only on male song. This left a gap our understanding of the environmental, neuroendocrine, mechanistic control female Here, we report overall acoustic features, repertoire, stereotypy Red-Cheeked Cordon Bleus (Uraeginthus bengalus) (RCCBs) songs lab. We found few sex differences structure, song RCCBs. Both sexes had similar entropy, peak frequency, duration. Additionally, individuals sang single type each levels syllable stereotypy. However, did find that RCCBs higher bandwidth but lower repertoires. Finally, strikingly, highly individualistic Each individual produced stereotyped unique with no birds sharing types very being shared between either sex. propose represent promising species future investigations lab environment, also evolutionary driving forces behind songs.

Language: Английский

Citations

1