Annual changes in cell proliferation and apoptosis and expression of connexin 43 in the testes of domestic seasonal breeding ganders

Gumułka, Małgorzata; Hrabia, Anna; Rozenboim, Israel

doi:10.1016/j.theriogenology.2022.03.031

Cited by 6 publications

(2 citation statements)

References 47 publications

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“…Seasonal breeding refers to the absence of continuous reproductive activity throughout the year in specific species or populations residing in non-equatorial regions of the Earth that occur as a consequence of cyclical environmental variations caused by climatic seasons. In females, ovulation is suspended during a specific period, while in males, testicular function is diminished or exhausted during the non-breeding season ( Beltran-Frutos et al., 2022 ; Gumulka et al., 2022 ; Tao et al., 2022 ; Pandey and Mohanty, 2023 ; Zhang et al., 2023 ). In seasonal breeding animals such as minks, testes undergo cyclical activation and inactivation annually, which is a particularly interesting example of spermatogenesis regulation ( Zhang et al., 2023 ).…”

Section: Discussionmentioning

confidence: 99%

Exploring the role of endogenous retroviruses in seasonal reproductive cycles: a case study of the ERV-V envelope gene in mink

Zhang,

Wang,

Zhu

et al. 2024

Front. Cell. Infect. Microbiol.

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IntroductionEndogenous retroviruses (ERVs), which originated from exogenous retroviral infections of germline cells millions of years ago and were inherited by subsequent generations as per Mendelian inheritance patterns, predominantly comprise non-protein-coding sequences due to the accumulation of mutations, insertions, deletions, and truncations. Nevertheless, recent studies have revealed that ERVs play a crucial role in diverse biological processes by encoding various proteins.MethodsIn this study, we successfully identified an ERV envelope (env) gene in a mink species. A phylogenetic tree of mink ERV-V env and reference sequences was constructed using Bayesian methods and maximum-likelihood inference.ResultsPhylogenetic analyses indicated a significant degree of sequence conservation and positive selection within the env-surface open reading frame. Additionally, qRT-PCR revealed diverse patterns of mink ERV-V env expression in various tissues. The expression of mink ERV-V env gene in testicular tissue strongly correlated with the seasonal reproductive cycles of minks.DiscussionOur study suggests that the ERV-V env gene in mink may have been repurposed for host functions.

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Section: Discussionmentioning

confidence: 99%

Exploring the role of endogenous retroviruses in seasonal reproductive cycles: a case study of the ERV-V envelope gene in mink

Zhang,

Wang,

Zhu

et al. 2024

Front. Cell. Infect. Microbiol.

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“…After sexual maturation, estrogen plays a key role in activating yolk precursors by increasing ApoVLDL-II and VTG-II gene expression [30,31]. Table 7 shows that injecting chickens with Glycetin increases blood estrogen levels; the mechanism by which this occurs is unclear, however, Table 8 shows that this effect is accompanied by an increase in aromatase activity; aromatase is thought to be the main regulator of estrogen production [32], so this finding may provide the first thread in explaining the mechanism.…”

Section: Discussionmentioning

confidence: 99%

Impact of Glycetin Injection on Productive Traits in local Iraqi Chickens

Al-Mousawi,

Al-Hayani,

Alate

2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study aimed to investigate the impact of implementing Glycetin by injection on the productive features of local Iraqi chickens. 100 female hens and 20 roosters from a local Iraqi chicken population, at age 26 weeks. The sample was divided into three groups, in addition to a control group. Each experimental group had 25 female hens, with the same procedure being performed for each individual hen, and 20 roosters, which were reared separately for the purpose of artificial insemination. The avian specimens were housed in separate enclosures, and the experimental conditions were allocated as follows: the initial condition (Control Group) did not receive any injections, whereas conditions T2, T3, and T4 were administered with varying doses of Glycetin at concentrations of 5, 10, and 15 milligrams per kilogram of body weight, respectively. The results showed improve significant (P<0.05) many aspects such as egg production rate, cumulative egg count, egg mass, egg weight, and feed conversion ratio.

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Alterations in connexin 43 gene and protein expression in the chicken oviduct following tamoxifen treatment

et al. 2022

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Annual changes in cell proliferation and apoptosis and expression of connexin 43 in the testes of domestic seasonal breeding ganders

Cited by 6 publications

References 47 publications

Exploring the role of endogenous retroviruses in seasonal reproductive cycles: a case study of the ERV-V envelope gene in mink

Exploring the role of endogenous retroviruses in seasonal reproductive cycles: a case study of the ERV-V envelope gene in mink

Impact of Glycetin Injection on Productive Traits in local Iraqi Chickens

Alterations in connexin 43 gene and protein expression in the chicken oviduct following tamoxifen treatment

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