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Wang Y, Li X, Gong R, Zhao Y. Treatment of mice with maternal intermittent fasting to improve the fertilization rate and reproduction. ZYGOTE 2024:1-9. [PMID: 38738497 DOI: 10.1017/s0967199424000108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Maternal intermittent fasting (MIF) can have significant effects on several tissue and organ systems of the body, but there is a lack of research on the effects on the reproductive system. So, the aim of our study was to analyze the effects of MIF on fertility. B6C3F1Crl (C57BL/6N × C3H/HeN) male and female mice were selected for the first part of the experiments and were analyzed for body weight and fat weight after administration of the MIF intervention, followed by analysis of sperm counts and activation and embryo numbers. Subsequently, two strains of mice, C57BL/6NCrl and BALB/cJRj, were selected and administered MIF to observe the presence or absence of vaginal plugs for the purposes of mating success, sperm and oocyte quality, pregnancy outcome, fertility status and in vitro fertilization (IVF). Our results showed a significant reduction in body weight and fat content in mice receiving MIF intervention in B6C3F1Crl mice. Comparing the reproduction of the two strains of mice. However, the number of litters was increased in all MIF interventions in C57BL/6NCrl, but not statistically significant. In BALB/cJRj, there was a significant increase in the number of pregnant females as well as litter size in the MIF treatment group, as well as vaginal plugs, and IVF. There was also an increase in sperm activation and embryo number and the MIF intervention significantly increased sperm count and activation. Our results suggest that MIF interventions may be beneficial for reproduction in mice.
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Affiliation(s)
- Yanan Wang
- Department of Reproductive Medicine, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan250001, Shandong, China
| | - Xin Li
- The People's Hospital of Binzhou, Binzhou256600, Shandong, China
| | - Ruiting Gong
- Department of Reproductive Medicine, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan250001, Shandong, China
| | - Yu Zhao
- Department of Reproductive Medicine, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan250001, Shandong, China
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Electronic recording of lifetime locomotory activity patterns of adult medflies. PLoS One 2022; 17:e0269940. [PMID: 35877614 PMCID: PMC9312368 DOI: 10.1371/journal.pone.0269940] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/31/2022] [Indexed: 11/19/2022] Open
Abstract
Age-specific and diurnal patterns of locomotory activity, can be considered as biomarkers of aging in model organisms and vary across the lifetime of individuals. Τhe Mediterranean fruit fly (medfly), Ceratitis capitata, is a commonly used model-species in studies regarding demography and aging. In the present study, we introduce a modification of the automated locomotory activity electronic device LAM25system (Locomotory Activity Monitor)–Trikinetics, commonly used in short time studies, to record the daily locomotory activity patterns of adult medflies throughout the life. Additionally, fecundity rates and survival of adult medflies were recorded. Male and female medflies were kept in the system tubes and had access to an agar-based gel diet, which provided water and nutrients. The locomotory activity was recorded at every minute by three monitors in the electronic device. The locomotory activity of females was higher than that of males across the different ages. For both sexes locomotory rates were high during the first 20 days of the adult life and decreased in older ages. The activity of males was high in the morning and late afternoon hours, while that of females was constantly high throughout the photophase. Negligible locomotory activity was recorded for both sexes during the nighttime. Males outlived females. Fecundity of females was higher in younger ages. Our results support the adoption of LAM25system in studies addressing aging of insects using medfly as a model organism.
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Molleman F, Granados‐Tello J, Chapman CA, Tammaru T. Fruit‐feeding butterflies depend on adult food for reproduction: Evidence from longitudinal body mass and abundance data. Funct Ecol 2022. [DOI: 10.1111/1365-2435.14103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Freerk Molleman
- Department of Systematic Zoology Institute of Environmental Biology, Faculty of Biology, A. Mickiewicz University Poznań Poland
| | | | - Colin A. Chapman
- Center for the Advanced Study of Human Paleobiology The George Washington University Washington DC USA
| | - Toomas Tammaru
- Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
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Pogue T, Malod K, Weldon CW. Patterns of Remating Behaviour in Ceratitis (Diptera: Tephritidae) Species of Varying Lifespan. Front Physiol 2022; 13:824768. [PMID: 35197865 PMCID: PMC8859485 DOI: 10.3389/fphys.2022.824768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/14/2022] [Indexed: 11/16/2022] Open
Abstract
Trade-offs between life-history traits offset the energetic costs of maintaining fitness in complex environments. Ceratitis species have been recorded to have long lifespans, which may have evolved in response to seasonal resource fluctuation. It is thus likely that reproductive patterns have evolved concomitantly as part of the trade-off between lifespan and reproduction. In this study, we investigated how reproductive patterns differ between Ceratitis cosyra (Walker) and Ceratitis capitata (Wiedemann; Diptera: Tephritidae), two species with different average and maximum lifespans. Females of both species were mated and patterns of female survival, fecundity, remating and sperm storage were tested. Ceratitis cosyra had a higher rate of survival and a lower fecundity when compared with the shorter-lived C. capitata, suggesting that both species exhibit a trade-off between lifespan and reproduction. Both species showed a similar and consistent willingness to remate, despite declines in sperm storage, suggesting that sperm alone does not fully inhibit remating. As expected, C. cosyra transferred high numbers of sperm during the first mating. However, sperm stores declined unexpectedly by 14 days. This indicates that males might transfer large ejaculates as a nuptial gift, that females then later degrade as a source of nutrients. Large declines in sperm storage may also indicate that females discard excess sperm stores due to the toxicity involved with storing sperm. These results do not suggest that patterns of sperm storage and remating align with lifespan and resource seasonality in these species, but a wider range of species needs to be assessed to better understand variation in Ceratitis mating systems.
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Malod K, Roets PD, Bosua H, Archer CR, Weldon CW. Selecting on age of female reproduction affects lifespan in both sexes and age-dependent reproductive effort in female (but not male) Ceratitis cosyra. Behav Ecol Sociobiol 2021. [DOI: 10.1007/s00265-021-03063-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Malod K, Roets PD, Oosthuizen C, Blount JD, Archer CR, Weldon CW. Selection on age of female reproduction in the marula fruit fly, Ceratitis cosyra (Walker) (Diptera: Tephritidae), decreases total antioxidant capacity and lipid peroxidation. JOURNAL OF INSECT PHYSIOLOGY 2020; 125:104084. [PMID: 32634434 DOI: 10.1016/j.jinsphys.2020.104084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
The oxidative damage caused to cells by Reactive Oxygen Species (ROS) is one of several factors implicated in causing ageing. Oxidative damage may also be a proximate cost of reproductive effort that mediates the trade-off often observed between reproduction and survival. However, how the balance between oxidative damage and antioxidant protection affects life-history strategies is not fully understood. To improve our understanding, we selected on female reproductive age in the marula fruit fly, Ceratitis cosyra, and quantified the impact of selection on female and male mortality risk, female fecundity, male sperm transfer, calling and mating. Against expectations, upward-selected lines lived shorter lives and experienced some reductions in reproductive performance. Selection affected oxidative damage to lipids and total antioxidant protection, but not in the direction predicted; longer lives were associated with elevated oxidative damage, arguing against the idea that accumulated oxidative damage reduces lifespan. Greater reproductive effort was also associated with elevated oxidative damage, suggesting that oxidative damage may be a cost of reproduction, although one that did not affect survival. Our results add to a body of data showing that the relationship between lifespan, reproduction and oxidative damage is more complex than predicted by existing theories.
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Affiliation(s)
- Kevin Malod
- Department of Zoology and Entomology, University of Pretoria, Private bag X20, Hatfield 0028, South Africa.
| | - Petrus D Roets
- Department of Zoology and Entomology, University of Pretoria, Private bag X20, Hatfield 0028, South Africa
| | - Carel Oosthuizen
- Department of Zoology and Entomology, University of Pretoria, Private bag X20, Hatfield 0028, South Africa
| | - Jonathan D Blount
- Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Penryn, UK
| | - C Ruth Archer
- Institute for Evolutionary Ecology and Conservation Genomics, University of Ulm, Ulm, Germany
| | - Christopher W Weldon
- Department of Zoology and Entomology, University of Pretoria, Private bag X20, Hatfield 0028, South Africa
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Papanastasiou SA, Carey JR, Papadopoulos NT. Effects of early-life protein starvation on longevity and sexual performance of male medfly. PLoS One 2019; 14:e0219518. [PMID: 31344046 PMCID: PMC6657835 DOI: 10.1371/journal.pone.0219518] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 06/25/2019] [Indexed: 12/16/2022] Open
Abstract
Using a well-established model species for demographic, behavioural and aging research, the Mediterranean fruit fly (Ceratitis capitata), we explored whether nutritional stress early in adult life affects the sexual performance and survival in older ages. To do so we established two different protein starvation (PS) protocols that included the elimination of proteinaceous diet either before or after sexual maturity of male medflies. The frequency of sexual signalling and the age of death were daily recorded. Sexual signalling is directly related with male mating success in this model system. PS early in adult life results in high mortality rates (similar to sugar-only fed males), which are gradually restored in more advanced ages. Provision of a proteinaceous diet following early-life PS increases straightaway male sexual signalling to levels similar with those having continuous access to proteinaceous diet. Switching diet regimes from a protein-free to a protein-rich one progressively compensates mortality rates. Apparently, males prioritize sexual signalling over lifespan. PS after attaining sexual maturity significantly reduces both longevity and sexual performance. Access to protein only early in life is insufficient to support lifetime energy-consuming behaviours such as sexual signalling. Continuous access to a proteinaceous diet determines both lifetime sexual performance and longevity. Early in life PS males prioritize the allocation of nutritional elements, when available, in sexual activities over soma-maintenance.
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Affiliation(s)
- Stella A. Papanastasiou
- Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - James R. Carey
- Department of Entomology, University of California, Davis, California, United States of America
| | - Nikos T. Papadopoulos
- Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece
- * E-mail:
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Harwood JF, Chen K, Liedo P, Müller HG, Wang JL, Morice AE, Carey JR. Female access and diet affect insemination success, senescence, and the cost of reproduction in male Mexican fruit flies Anastrepha ludens. PHYSIOLOGICAL ENTOMOLOGY 2015; 40:65-71. [PMID: 25709143 PMCID: PMC4335655 DOI: 10.1111/phen.12089] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Hypotheses exploring the influence of dietary conditions on the life history trade-off between survival and reproductive success are extensively tested in female insects, but are rarely explored in males. Here, the impact of dietary quality and female access on age-specific reproduction and survival of male Mexican fruit flies, Anastrepha ludens Loew (Diptera: Tephritidae), are examined. There is a clear cost of female access for males with access to dietary protein, measurable as a decrease in life expectancy, which is further influenced by the age when females are introduced. A protein deficient diet reduces the lifespan benefit of virginity and masks the detrimental effect of female access on male life expectancy. Dietary protein is not necessary for reproductive success, but access to protein at eclosion improves the lifetime reproductive success of males compared to when it is delayed. Overall, reproductive success diminishes as the male flies age, regardless of the dietary conditions, providing evidence for reproductive senescence in males. Delaying the males' access to a protein source fails to influence the negative effect of age on reproductive ability. Because age specific reproductive rates decline with age, regardless of diet, male fitness does not benefit from lifespan extension. Therefore, males can be expected to allocate available resources towards reproductive effort in favour of extended lifespan, regardless of mate and protein availability.
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Affiliation(s)
- James F Harwood
- Department of Entomology, University of California, Davis, California, U.S.A
| | - Kehui Chen
- Department of Statistics, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A. ; Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A
| | - Pablo Liedo
- Departamento de Agricultura, Sociedad y Ambiente, El Colegio de la Frontera Sur (ECOSUR), Tapachula, Chiapas, Mexico
| | - Hans-Georg Müller
- Department of Statistics, University of California, Davis, California, U.S.A
| | - Jane-Ling Wang
- Department of Statistics, University of California, Davis, California, U.S.A
| | - Amy E Morice
- Department of Entomology, University of California, Davis, California, U.S.A
| | - James R Carey
- Department of Entomology, University of California, Davis, California, U.S.A
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Zou S, Carey JR, Liedo P, Ingram DK, Yu B. Prolongevity effects of a botanical with oregano and cranberry extracts in Mexican fruit flies: examining interactions of diet restriction and age. AGE (DORDRECHT, NETHERLANDS) 2012; 34:269-79. [PMID: 21455602 PMCID: PMC3312627 DOI: 10.1007/s11357-011-9230-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Accepted: 03/02/2011] [Indexed: 04/17/2023]
Abstract
Botanicals rich with phytochemicals have numerous health benefits. Dietary restriction (DR) extends lifespan in diverse species. We previously demonstrated that an oregano-cranberry (OC) mixture can promote longevity in the Mexican Fruit fly (Mexfly, Anastrepha ludens Loew). However, little is known about the interaction between botanicals and DR, and the age-dependent effect of botanicals on lifespan and reproduction. Here we investigated these issues by feeding Mexflies a full or DR diet supplemented with or without 2% OC. Lifespan and daily egg production of individual flies were recorded. The effect of short-term OC supplementation was evaluated by implementing the supplementation at three age intervals-young, middle, and old age. We found that OC increased lifespan of Mexflies on the full or DR diet when compared to their respective controls. OC increased reproduction of females on the full diet and, to a lesser extent, on the DR diet. Short-term OC supplementation was not sufficient to extend lifespan for males at all three age intervals nor for females at young and old age intervals. However, OC supplementation at the middle age interval was sufficient to extend lifespan in females, while only OC supplementation at the young age interval increased reproduction in females. Our findings suggest that OC extends lifespan and promotes reproduction partly through DR-independent pathways, and short-term supplementation have varied impact on longevity and reproduction. This also suggests a positive interaction between non-genetic interventions in promoting longevity and provides guidance for using botanicals as aging interventions in humans.
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Affiliation(s)
- Sige Zou
- Laboratory of Experimental Gerontology, National Institute on Aging, Baltimore, MD 21224, USA.
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10
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Boyd O, Weng P, Sun X, Alberico T, Laslo M, Obenland DM, Kern B, Zou S. Nectarine promotes longevity in Drosophila melanogaster. Free Radic Biol Med 2011; 50:1669-78. [PMID: 21406223 PMCID: PMC3090488 DOI: 10.1016/j.freeradbiomed.2011.03.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Revised: 03/07/2011] [Accepted: 03/08/2011] [Indexed: 01/24/2023]
Abstract
Fruits containing high antioxidant capacities and other bioactivities are ideal for promoting longevity and health span. However, few fruits are known to improve the survival and health span in animals, let alone the underlying mechanisms. Here we investigate the effects of nectarine, a globally consumed fruit, on life span and health span in Drosophila melanogaster. Wild-type flies were fed standard, dietary restriction (DR), or high-fat diet supplemented with 0-4% nectarine extract. We measured life span, food intake, locomotor activity, fecundity, gene expression changes, and oxidative damage indicated by the level of 4-hydroxynonenal-protein adduct in these flies. We also measured life span, locomotor activity, and oxidative damage in sod1 mutant flies on the standard diet supplemented with 0-4% nectarine. Supplementation with 4% nectarine extended life span, increased fecundity, and decreased expression of some metabolic genes, including a key gluconeogenesis gene, PEPCK, and oxidative stress-response genes, including peroxiredoxins, in female wild-type flies fed the standard, DR, or high-fat diet. Nectarine reduced oxidative damage in wild-type females fed the high-fat diet. Moreover, nectarine improved the survival of and reduced oxidative damage in female sod1 mutant flies. Together, these findings suggest that nectarine promotes longevity and health span partly by modulating glucose metabolism and reducing oxidative damage.
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Affiliation(s)
- Olga Boyd
- Laboratory of Experimental Gerontology, National Institute on Aging, Baltimore, MD 21224, USA
| | - Peter Weng
- Laboratory of Experimental Gerontology, National Institute on Aging, Baltimore, MD 21224, USA
| | - Xiaoping Sun
- Laboratory of Experimental Gerontology, National Institute on Aging, Baltimore, MD 21224, USA
| | - Thomas Alberico
- Laboratory of Experimental Gerontology, National Institute on Aging, Baltimore, MD 21224, USA
| | - Mara Laslo
- Laboratory of Experimental Gerontology, National Institute on Aging, Baltimore, MD 21224, USA
| | - David M. Obenland
- United States Department of Agriculture, Agriculture Research Service, Parlier, CA 93648, USA
| | - Bradley Kern
- Laboratory of Experimental Gerontology, National Institute on Aging, Baltimore, MD 21224, USA
| | - Sige Zou
- Laboratory of Experimental Gerontology, National Institute on Aging, Baltimore, MD 21224, USA
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Abstract
This commentary explores the relationship between what can be learned about reproductive senescence from studies in the laboratory compared with what can be learned from studies in the field. Laboratory studies allow researchers to isolate and analyze detailed cellular and molecular mechanisms of reproductive senescence, however drawing evolutionary inferences from captive studies can be misleading. The ideal study would combine field and laboratory observations and experiments. As with most other biological phenomena, understanding the nature of genetic and environmental interactions is central to understanding of reproductive aging.
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Affiliation(s)
- Steven N Austad
- University of Texas Health Science Center San Antonio, San Antonio, Texas, USA.
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Haaga J, O'Connor K, Weinstein M, Wise P. Reproductive aging: theoretical perspectives, mechanisms, nonhuman models, and health correlates. Ann N Y Acad Sci 2010; 1204:1-10. [PMID: 20738270 DOI: 10.1111/j.1749-6632.2010.05700.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Every 365.2421999 days--more or less--the earth rotates, revolves, wobbles, and precesses along an elliptical path around the sun. Those of us who survive the journey are a year older: we have aged one solar year. Some years we seem to age faster than other years; some people seem to age faster than other people; some systems seem to age faster than other systems. As we begin to mature, reach our middle years, and become elderly, reproductive changes are among the markers of aging that are most notable, particularly among women. What--if anything--can we learn about more general processes of aging from reproductive aging? Does our postreproductive survival contribute to our fitness, or is it just a chance event, a result of selection on other characteristics? Can our insights and research be translated into improved clinical practice? We explore reproductive aging with a wide-angle multidisciplinary lens that we use to focus on four articulating areas: theoretical perspectives, mechanisms, nonhuman models, and health correlates. We propose directions for future work.
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Affiliation(s)
- John Haaga
- Division of Behavioral and Social Research, National Institute on Aging, Bethesda, Maryland, USA
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