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Wang Y, Xue Y, Yan C, Yu X, Zhang L, Wang Y, Lan Y, Zhang X. Ovary metabolome and cecal microbiota changes in aged laying hens supplemented with vitamin E. Poult Sci 2024; 103:103760. [PMID: 38678750 PMCID: PMC11067459 DOI: 10.1016/j.psj.2024.103760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 05/01/2024] Open
Abstract
This study was aimed to evaluate the effect of vitamin E (VE) on laying performance, VE deposition, antioxidant capacity, immunity, follicle development, estrogen secretion, ovary metabolome, and cecal microbiota of laying hens. One hundred and twenty XinYang Black-Feathered laying hens (70 wk old) were randomly assigned to 2 groups (6 replicates of 20 birds), and fed a basal diet (containing 20 mg/kg VE, control (CON) group) and a basal diet supplemented with 20 mg/kg VE (VE group). The experiment lasted for 10 wk. Results showed that VE supplementation increased laying performance, antioxidant capacity, and immunity, as evidenced by increased (P < 0.05) performance (laying rate), antioxidant (glutathione peroxidase, total superoxide dismutase, total antioxidant capacity, and catalase) and immune (immunoglobulins) parameters, and decreased (P < 0.05) feed/egg ratio and malondialdehyde. Meanwhile, VE group had higher (P < 0.05) pregrade follicles, ovary index and serum estrogen levels than CON group. 16S rRNA sequencing showed that VE supplementation altered the cecal microbiota composition by increasing Bacteroides, Rikenellaceae_RC9_gut_group, Prevotellaceae_UCG-001 and Megamonas abundances and reducing Christensenellaceae_R-7_group abundance (at genus level), which are mainly associated with the production of short-chain fatty acids. Metabolomic profiling of the ovary revealed that the major metabolites altered by VE supplementation were mainly related to follicle development, estrogen secretion, anti-inflammatory, antioxidant, phototransduction, bile acid synthesis, and nutrient transport. Furthermore, changes in cecal microbiota (at genus level) and ovary metabolites were highly correlated with laying performance, antioxidant, and immune parameters. In summary, VE contributed to the laying performance of aged laying hens by enhancing antioxidant, immune, and ovarian functions, promoting follicle development and estrogen secretion, and regulating gut microbiota and ovary metabolites. These findings will provide a new perspective on the mechanisms of egg production in aged poultry ovaries.
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Affiliation(s)
- Yongxia Wang
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A&F University, Lin'an 311300, China
| | - Yajie Xue
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A&F University, Lin'an 311300, China
| | - CongCong Yan
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A&F University, Lin'an 311300, China
| | - Xu Yu
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A&F University, Lin'an 311300, China
| | - Ling Zhang
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230000, China
| | - Yufang Wang
- Qujiang District Animal Husbandry and Veterinary Station, Quzhou 324000, China
| | - Yahua Lan
- Qujiang District Animal Husbandry and Veterinary Station, Quzhou 324000, China
| | - Xiaodong Zhang
- Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A&F University, Lin'an 311300, China.
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Alyoshina NM, Tkachenko MD, Nikishina YO, Nikishin DA. Serotonin Transporter Activity in Mouse Oocytes Is a Positive Indicator of Follicular Growth and Oocyte Maturity. Int J Mol Sci 2023; 24:11247. [PMID: 37511007 PMCID: PMC10379015 DOI: 10.3390/ijms241411247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 07/01/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
Serotonin (5-hydroxytryptamine, 5-HT) is known to be a regulator of oocyte maturation in a large number of animal species. In maturing mammalian oocytes, the accumulation of exogenous, maternal serotonin occurs due to the activity of the membrane transporter SERT. In this work, we investigated how SERT activity in oocytes correlates with indicators of follicular selection and oocyte maturity. An immunohistochemical study showed that the difference in the 5-HT intake activity in oocytes does not correlate with the marker of apoptosis in follicular cells, but positively correlates with markers of follicular growth, such as granulosa proliferation and follicle size. Functional analysis of oocytes at different stages of maturation showed that the expression and activity of SERT increases with oocyte maturation. An in vivo experiment on administration of the selective serotonin reuptake inhibitor fluoxetine (20 mg/kg) for 7 days showed a significant decrease in the content of serotonin in both growing GV-oocytes and ovulated mature MII-oocytes. The data obtained clearly indicate that the mechanism of specific membrane transport of serotonin normally ensures the accumulation of serotonin in maturing oocytes, and can be considered as a promising positive marker of their mature status.
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Affiliation(s)
- Nina M Alyoshina
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, 119334 Moscow, Russia
| | - Maria D Tkachenko
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, 119334 Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 1, Bld. 12, 119991 Moscow, Russia
| | - Yulia O Nikishina
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, 119334 Moscow, Russia
| | - Denis A Nikishin
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, 119334 Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 1, Bld. 12, 119991 Moscow, Russia
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Chistopolsky I, Leonova A, Mezheritskiy M, Boguslavsky D, Kristinina A, Zakharov I, Sorminskiy A, Vorontsov D, Dyakonova V. Intense Locomotion Enhances Oviposition in the Freshwater Mollusc Lymnaea stagnalis: Cellular and Molecular Correlates. BIOLOGY 2023; 12:764. [PMID: 37372049 DOI: 10.3390/biology12060764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/18/2023] [Accepted: 05/20/2023] [Indexed: 06/29/2023]
Abstract
Intense species-specific locomotion changes the behavioural and cognitive states of various vertebrates and invertebrates. However, whether and how reproductive behaviour is affected by previous increased motor activity remains largely unknown. We addressed this question using a model organism, the pond snail Lymnaea stagnalis. Intense crawling in shallow water for two hours had previously been shown to affect orienting behaviour in a new environment as well as the state of the serotonergic system in L. stagnalis. We found that the same behaviour resulted in an increased number of egg clutches and the total number of eggs laid in the following 24 h. However, the number of eggs per clutch was not affected. This effect was significantly stronger from January to May, in contrast to the September-December period. Transcripts of the egg-laying prohormone gene and the tryptophan hydroxylase gene, which codes for the rate-limiting enzyme in serotonin synthesis, were significantly higher in the central nervous system of snails that rested in clean water for two hours after intense crawling. Additionally, the neurons of the left (but not the right) caudo-dorsal cluster (CDC), which produce the ovulation hormone and play a key role in oviposition, responded to stimulation with a higher number of spikes, although there were no differences in their resting membrane potentials. We speculate that the left-right asymmetry of the response was due to the asymmetric (right) location of the male reproductive neurons having an antagonistic influence on the female hormonal system in the hermaphrodite mollusc. Serotonin, which is known to enhance oviposition in L. stagnalis, had no direct effect on the membrane potential or electrical activity of CDC neurons. Our data suggest that (i) two-hour crawling in shallow water enhances oviposition in L. stagnalis, (ii) the effect depends on the season, and (iii) the underlying mechanisms may include increased excitability of the CDC neurons and increased expression of the egg-laying prohormone gene.
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Affiliation(s)
- Ilya Chistopolsky
- Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia
| | - Alexandra Leonova
- Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia
| | - Maxim Mezheritskiy
- Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia
| | - Dmitri Boguslavsky
- Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia
| | - Angelina Kristinina
- Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia
| | - Igor Zakharov
- Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia
| | - Andrey Sorminskiy
- Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia
| | - Dmitri Vorontsov
- Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia
| | - Varvara Dyakonova
- Koltzov Institute of Developmental Biology of the Russian Academy of Sciences, 119334 Moscow, Russia
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Alyoshina NM, Tkachenko MD, Malchenko LA, Shmukler YB, Nikishin DA. Uptake and Metabolization of Serotonin by Granulosa Cells Form a Functional Barrier in the Mouse Ovary. Int J Mol Sci 2022; 23:ijms232314828. [PMID: 36499156 PMCID: PMC9739058 DOI: 10.3390/ijms232314828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/21/2022] [Accepted: 11/25/2022] [Indexed: 12/05/2022] Open
Abstract
Serotonin (5-HT) plays an essential role in regulating female reproductive function in many animals. 5-HT accumulates in the mammalian ovary with the involvement of membrane serotonin transporter SERT and is functionally active in the oocytes of growing follicles, but shows almost no activity in follicular cells. In this study, we clarified the interplay between 5-HT membrane transport and its degradation by monoamine oxidase (MAO) in the mammalian ovary. Using pharmacologic agents and immunohistochemical staining of the cryosections of ovaries after serotonin administration in vitro, we demonstrated the activity of transport and degradation systems in ovarian follicles. The MAO inhibitor pargyline increased serotonin accumulation in the granulosa cells of growing follicles, indicating the activity of both serotonin uptake and degradation by MAO in these cells. The activity of MAO and the specificity of the membrane transport of serotonin was confirmed in primary granulosa cell culture treated with pargyline and fluoxetine. Moreover, the accumulation of serotonin is more effective in the denuded oocytes and occurs at lower concentrations than in the oocytes within the follicles. This confirms that the activity of SERT and MAO in the granulosa cells surrounding the oocytes impedes the accumulation of serotonin in the oocytes and forms a functional barrier to serotonin.
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Affiliation(s)
- Nina M. Alyoshina
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, 119334 Moscow, Russia
| | - Maria D. Tkachenko
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 1, bld. 12, 119991 Moscow, Russia
| | - Lyudmila A. Malchenko
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, 119334 Moscow, Russia
| | - Yuri B. Shmukler
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, 119334 Moscow, Russia
| | - Denis A. Nikishin
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, 119334 Moscow, Russia
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 1, bld. 12, 119991 Moscow, Russia
- Correspondence:
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Nikishin DA, Khramova YV, Alyoshina NM, Malchenko LA, Shmukler YB. Oocyte-Mediated Effect of Serotonin on the Functional Status of Granulosa Cells. Russ J Dev Biol 2021. [DOI: 10.1134/s1062360421020065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Nikishin DA, Alyoshina NM, Semenova ML, Shmukler YB. Analysis of Expression and Functional Activity of Aromatic L-Amino Acid Decarboxylase (DDC) and Serotonin Transporter (SERT) as Potential Sources of Serotonin in Mouse Ovary. Int J Mol Sci 2019; 20:ijms20123070. [PMID: 31234589 PMCID: PMC6627913 DOI: 10.3390/ijms20123070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/20/2019] [Accepted: 06/21/2019] [Indexed: 01/13/2023] Open
Abstract
The origin of serotonin in the ovary is the key question for understanding mechanisms of serotonergic regulation of reproductive function. We performed a study of the expression and functional activity of the serotonin transporter (SERT) and the enzyme for the synthesis of serotonin, aromatic l-amino acid decarboxylase (DDC) in mouse ovary. A pronounced peak of SERT mRNA expression occurs at the age of 14 days, but serotonin synthesis enzymes are expressed at the maximum level in the ovaries of newborn mice. SERT is detected immunohistochemically in all cellular compartments of the ovary with a maximum level of immunostaining in the oocytes of growing ovarian follicles. DDC immunolocalization, in contrast, is detected to a greater extent in primordial follicle oocytes, and decreases at the later stages of folliculogenesis. Serotonin synthesis in all cellular compartments occurs at very low levels, whereas specific serotonin uptake is clearly present, leading to a significant increase in serotonin content in the oocytes of growing primary and secondary follicles. These data indicate that the main mechanism of serotonin accumulation in mouse ovary is its uptake by the specific SERT membrane transporter, which is active in the oocytes of the growing ovarian follicles.
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Affiliation(s)
- Denis A Nikishin
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, Moscow 119334, Russia.
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 1, bld. 12, Moscow 119991, Russia.
| | - Nina M Alyoshina
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, Moscow 119334, Russia.
| | - Maria L Semenova
- Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, 1, bld. 12, Moscow 119991, Russia.
| | - Yuri B Shmukler
- N.K. Koltzov Institute of Developmental Biology, Russian Academy of Sciences, Vavilova Street, 26, Moscow 119334, Russia.
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