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Dennis CL, Abbass-Dick J, Birken C, Dennis-Grantham A, Goyal D, Singla D, Letourneau N, McQueen K, Shorey S, Dol J. Influence of paternal preconception health on pregnancy, intrapartum, postpartum and early childhood outcomes: protocol for a parallel scoping review. BMJ Open 2024; 14:e084209. [PMID: 38749690 PMCID: PMC11097796 DOI: 10.1136/bmjopen-2024-084209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 04/16/2024] [Indexed: 05/18/2024] Open
Abstract
INTRODUCTION Preconception care is the provision of behavioural, social or biomedical interventions to women and couples prior to conception. To date, preconception research has primarily focused on maternal health, despite the male partner's contribution before birth to both short-term and long-term child outcomes. The objectives of the reviews are: (1) to identify, consolidate and analyse the literature on paternal preconception health on pregnancy and intrapartum outcomes, and (2) to identify, consolidate and analyse the literature on paternal preconception health on postpartum and early childhood outcomes. METHODS AND ANALYSIS A scoping review will be conducted following the Joanna Briggs Institute methodology. MEDLINE, PsycINFO, Embase, Scopus and CINAHL databases will be searched for articles published in English. Two independent reviewers will screen titles and abstracts and then full text using Covidence, with conflicts resolved by a third reviewer. Data extraction will be performed using Covidence. ETHICS AND DISSEMINATION Ethics approval is not required for this scoping review. Results will be published in peer-reviewed journals as well as presented at relevant national and international conferences and meetings.
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Affiliation(s)
- Cindy-Lee Dennis
- Lawrence S. Bloomberg Faculty of Nursing, University of Torontoo, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Sinai Health, Toronto, Ontario, Canada
| | | | - Catherine Birken
- The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada
| | | | - Deepika Goyal
- School of Nursing and Health Professions, University of San Francisco, San Francisco, California, USA
| | - Daisy Singla
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Nicole Letourneau
- Faculty of Nursing, University of Calgary, Calgary, Alberta, Canada
- Pediatrics, Psychiatry and Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Karen McQueen
- Department of Nursing, Lakehead University, Thunder Bay, Ontario, Canada
| | - Shefaly Shorey
- Alice Lee Centre for Nursing Studies, National University Singapore Yong Loo Lin School of Medicine, Singapore
| | - Justine Dol
- IWK Health Centre, Halifax, Nova Scotia, Canada
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Morrison K, Yang Y, Santana M, Lagisz M, Nakagawa S. A systematic evidence map and bibliometric analysis of the behavioural impacts of pesticide exposure on zebrafish. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123630. [PMID: 38423273 DOI: 10.1016/j.envpol.2024.123630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/22/2024] [Accepted: 02/20/2024] [Indexed: 03/02/2024]
Abstract
Pesticides are indispensable in agriculture and have become ubiquitous in aquatic environments. Pesticides in natural environments can cause many negative impacts on aquatic species, ranging from mortality to sub-lethal physiological and behavioural changes. The complex sub-lethal impacts of pesticides are routinely tested on model species, with zebrafish (Danio rerio) being regularly used as a behavioural model. Although behavioural ecotoxicology research using zebrafish is increasing rapidly, we lack quantitative evidence to support which pesticides have been tested and how study designs are carried out. This shortcoming not only limits the deliberate planning for future primary studies to fill the knowledge gaps but also hinders evidence synthesis. To provide quantitative evidence of what pesticides are currently studied and what study designs are used, we combined a systematic evidence map approach and bibliometric analysis. This novel method has been coined research weaving and allows us to elicit gaps and clusters in our evidence base, whilst showing connections between authors and institutions. The methodology can be summarised in five primary steps: literature searching, screening, extraction, data analysis and bibliometric analysis. We identified four areas where research on the sub-lethal effects of pesticide exposure on zebrafish is lacking. First, some widely used pesticides, such as neonicotinoids, are understudied. Second, most studies do not report important elements of the study design, namely the sex and the life-stage of the zebrafish. Third, some behaviours, such as impacts of pesticide exposure on zebrafish cognition, are underexplored. And last, we revealed through the bibliometric analysis that most of the research is conducted in developed countries and there is limited cross country co-authorships. Upon identifying these gaps, we offer solutions for each limitation, emphasizing the importance of diverse global research output and cross-country co-authorships. Our systematic evidence map and bibliometric analysis provide valuable insights for helping to guide future research, which can be used to help support evidence-based policy decisions.
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Affiliation(s)
- Kyle Morrison
- Ecology & Evolution Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW, Australia.
| | - Yefeng Yang
- Ecology & Evolution Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW, Australia
| | - Manuela Santana
- Marine Ecology Laboratory, Centre for Marine Studies, Federal University of Paraná, Paraná, Brazil
| | - Malgorzata Lagisz
- Ecology & Evolution Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW, Australia; Theoretical Sciences Visiting Program, Okinawa Institute of Science and Technology Graduate University, Onna, Japan
| | - Shinichi Nakagawa
- Ecology & Evolution Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW, Australia; Theoretical Sciences Visiting Program, Okinawa Institute of Science and Technology Graduate University, Onna, Japan
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Sengupta P, Dutta S, Liew FF, Dhawan V, Das B, Mottola F, Slama P, Rocco L, Roychoudhury S. Environmental and Genetic Traffic in the Journey from Sperm to Offspring. Biomolecules 2023; 13:1759. [PMID: 38136630 PMCID: PMC10741607 DOI: 10.3390/biom13121759] [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: 09/12/2023] [Revised: 11/04/2023] [Accepted: 11/30/2023] [Indexed: 12/24/2023] Open
Abstract
Recent advancements in the understanding of how sperm develop into offspring have shown complex interactions between environmental influences and genetic factors. The past decade, marked by a research surge, has not only highlighted the profound impact of paternal contributions on fertility and reproductive outcomes but also revolutionized our comprehension by unveiling how parental factors sculpt traits in successive generations through mechanisms that extend beyond traditional inheritance patterns. Studies have shown that offspring are more susceptible to environmental factors, especially during critical phases of growth. While these factors are broadly detrimental to health, their effects are especially acute during these periods. Moving beyond the immutable nature of the genome, the epigenetic profile of cells emerges as a dynamic architecture. This flexibility renders it susceptible to environmental disruptions. The primary objective of this review is to shed light on the diverse processes through which environmental agents affect male reproductive capacity. Additionally, it explores the consequences of paternal environmental interactions, demonstrating how interactions can reverberate in the offspring. It encompasses direct genetic changes as well as a broad spectrum of epigenetic adaptations. By consolidating current empirically supported research, it offers an exhaustive perspective on the interwoven trajectories of the environment, genetics, and epigenetics in the elaborate transition from sperm to offspring.
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Affiliation(s)
- Pallav Sengupta
- Department of Biomedical Sciences, College of Medicine, Gulf Medical University, Ajman 4184, United Arab Emirates
| | - Sulagna Dutta
- School of Life Sciences, Manipal Academy of Higher Education (MAHE), Dubai 345050, United Arab Emirates
| | - Fong Fong Liew
- Department of Preclinical Sciences, Faculty of Dentistry, MAHSA University, Jenjarom 42610, Selangor, Malaysia
| | - Vidhu Dhawan
- Department of Anatomy, All India Institute of Medical Sciences (AIIMS), New Delhi 110029, India
| | - Biprojit Das
- Department of Life Science and Bioinformatics, Assam University, Silchar 788011, India
| | - Filomena Mottola
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy
| | - Petr Slama
- Laboratory of Animal Immunology and Biotechnology, Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic
| | - Lucia Rocco
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy
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Kitaba NT, Knudsen GTM, Johannessen A, Rezwan FI, Malinovschi A, Oudin A, Benediktsdottir B, Martino D, González FJC, Gómez LP, Holm M, Jõgi NO, Dharmage SC, Skulstad SM, Watkins SH, Suderman M, Gómez-Real F, Schlünssen V, Svanes C, Holloway JW. Fathers' preconception smoking and offspring DNA methylation. Clin Epigenetics 2023; 15:131. [PMID: 37649101 PMCID: PMC10469907 DOI: 10.1186/s13148-023-01540-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 07/24/2023] [Indexed: 09/01/2023] Open
Abstract
BACKGROUND Experimental studies suggest that exposures may impact respiratory health across generations via epigenetic changes transmitted specifically through male germ cells. Studies in humans are, however, limited. We aim to identify epigenetic marks in offspring associated with father's preconception smoking. METHODS We conducted epigenome-wide association studies (EWAS) in the RHINESSA cohort (7-50 years) on father's any preconception smoking (n = 875 offspring) and father's pubertal onset smoking < 15 years (n = 304), using Infinium MethylationEPIC Beadchip arrays, adjusting for offspring age, own smoking and maternal smoking. EWAS of maternal and offspring personal smoking were performed for comparison. Father's smoking-associated dmCpGs were checked in subpopulations of offspring who reported no personal smoking and no maternal smoking exposure. RESULTS Father's smoking commencing preconception was associated with methylation of blood DNA in offspring at two cytosine-phosphate-guanine sites (CpGs) (false discovery rate (FDR) < 0.05) in PRR5 and CENPP. Father's pubertal onset smoking was associated with 19 CpGs (FDR < 0.05) mapped to 14 genes (TLR9, DNTT, FAM53B, NCAPG2, PSTPIP2, MBIP, C2orf39, NTRK2, DNAJC14, CDO1, PRAP1, TPCN1, IRS1 and CSF1R). These differentially methylated sites were hypermethylated and associated with promoter regions capable of gene silencing. Some of these sites were associated with offspring outcomes in this cohort including ever-asthma (NTRK2), ever-wheezing (DNAJC14, TPCN1), weight (FAM53B, NTRK2) and BMI (FAM53B, NTRK2) (p < 0.05). Pathway analysis showed enrichment for gene ontology pathways including regulation of gene expression, inflammation and innate immune responses. Father's smoking-associated sites did not overlap with dmCpGs identified in EWAS of personal and maternal smoking (FDR < 0.05), and all sites remained significant (p < 0.05) in analyses of offspring with no personal smoking and no maternal smoking exposure. CONCLUSION Father's preconception smoking, particularly in puberty, is associated with offspring DNA methylation, providing evidence that epigenetic mechanisms may underlie epidemiological observations that pubertal paternal smoking increases risk of offspring asthma, low lung function and obesity.
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Affiliation(s)
- Negusse Tadesse Kitaba
- Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK
| | - Gerd Toril Mørkve Knudsen
- Department of Clinical Sciences, University of Bergen, Bergen, Norway
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Ane Johannessen
- Centre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Faisal I Rezwan
- Department of Computer Science, Aberystwyth University, Aberystwyth, UK
| | - Andrei Malinovschi
- Department of Medical Sciences: Clinical Physiology, Uppsala University, Uppsala, Sweden
| | - Anna Oudin
- Section of Sustainable Health, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Bryndis Benediktsdottir
- Department of Allergy, Respiratory Medicine and Sleep, Landspitali University Hospital, Reykjavik, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - David Martino
- Wal-Yan Respiratory Research Centre, Telethon Kids Institute, University of Western Australia, Perth, Australia
| | | | | | - Mathias Holm
- Occupational and Environmental Medicine, School of Public Health and Community Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Nils Oskar Jõgi
- Department of Clinical Sciences, University of Bergen, Bergen, Norway
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Shyamali C Dharmage
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | - Svein Magne Skulstad
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - Sarah H Watkins
- University of Bristol, MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, Bristol, UK
| | - Matthew Suderman
- University of Bristol, MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, Bristol, UK
| | - Francisco Gómez-Real
- Department of Clinical Sciences, University of Bergen, Bergen, Norway
- Department of Gynaecology and Obstetrics, Haukeland University Hospital, Bergen, Norway
| | - Vivi Schlünssen
- Department of Public Health, Work, Environment and Health, Danish Ramazzini Centre, Aarhus University Denmark, Aarhus, Denmark
- National Research Center for the Working Environment, Copenhagen, Denmark
| | - Cecilie Svanes
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
- Centre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - John W Holloway
- Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, SO16 6YD, UK.
- NIHR Southampton Biomedical Research Center, University Hospitals Southampton, Southampton, UK.
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Houle C, Gossieaux P, Bernatchez L, Audet C, Garant D. Transgenerational effects on body size and survival in Brook charr ( Salvelinus fontinalis). Evol Appl 2023; 16:1061-1070. [PMID: 37216032 PMCID: PMC10197224 DOI: 10.1111/eva.13553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/11/2023] [Accepted: 04/20/2023] [Indexed: 05/24/2023] Open
Abstract
Higher temperatures are now observed in several ecosystems and act as new selective agents that shape traits and fitness of individuals. Transgenerational effects may be important in modulating adaptation of future generations and buffering negative impacts of temperature changes. The potential for these effects may be important in freshwater fish species, as temperature is a key abiotic component of their environment. Yet, still, relatively few studies have assessed the presence and importance of transgenerational effects under natural conditions. The purpose of this study was to test how parental thermal conditions influenced offspring growth and survival following stocking in Brook charr (Salvelinus fontinalis). To do so, part of the breeders were exposed to a "cold" treatment while others were exposed to a "warm" treatment during the final steps of gonad maturation (constant 2°C difference between treatments along the seasonal temperature decrease). The impact on offspring of a selection treatment targeting production traits of interest (absence of sexual maturation at 1+, combined with increased growth) in breeders was also evaluated. After 7-8 months of growth in captivity, offspring were stocked in natural lakes. Their growth and survival were assessed about a year later. Offspring from "cold" breeders showed lower survival than those from "warm" breeders and the selection treatment had no effect on survival. However, the selection treatment was linked to lower Fulton's condition index, which, in turn, was positively correlated to survival in lakes. This study highlights the importance of working in ecological/industrial context to fully assess the different impacts of transgenerational effects on traits and survival. Our results also have important implications for stocking practices used to support the sport fishing industry.
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Affiliation(s)
- Carolyne Houle
- Département de BiologieUniversité de SherbrookeSherbrookeQuébecCanada
| | | | - Louis Bernatchez
- Institut de Biologie Intégrative et des Systèmes (IBIS)Université LavalQuébec CityQuébecCanada
| | - Céline Audet
- Institut des Sciences de la Mer de Rimouski (ISMER)Université du Québec à Rimouski (UQAR)RimouskiQuébecCanada
| | - Dany Garant
- Département de BiologieUniversité de SherbrookeSherbrookeQuébecCanada
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Jouanneau W, Léandri-Breton DJ, Herzke D, Moe B, Nikiforov VA, Pallud M, Parenteau C, Gabrielsen GW, Chastel O. Does contaminant exposure disrupt maternal hormones deposition? A study on per- and polyfluoroalkyl substances in an Arctic seabird. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 868:161413. [PMID: 36621503 DOI: 10.1016/j.scitotenv.2023.161413] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/09/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Maternal effects are thought to be essential tools for females to modulate offspring development. The selective deposition of avian maternal hormones could therefore allow females to strategically adjust the phenotype of their offspring to the environmental situation encountered. However, at the time of egg formation, several contaminants are also transferred to the egg, including per- and polyfluoroalkyl substances (PFAS) which are ubiquitous organic contaminants with endocrine disrupting properties. It is, however, unknown if they can disrupt maternal hormone deposition. In this study we explored relationships between female PFAS burden and maternal deposition in the eggs of steroids (dihydrotestosterone, androstenedione and testosterone), glucocorticoids (corticosterone) and thyroid hormones (triiodothyronine and thyroxine) in a population of the Arctic-breeding black-legged kittiwake (Rissa tridactyla). Egg yolk hormone levels were unrelated to female hormone plasma levels. Second-laid eggs had significantly lower concentrations of androstenedione than first-laid eggs. Triiodothyronine yolk levels were decreasing with increasing egg mass but increasing with increasing females' body condition. Testosterone was the only transferred yolk hormone correlated to maternal PFAS burden: specifically, we found a positive correlation between testosterone in yolks and circulating maternal perfluorononanoic acid (PFNA), perfluorodecanoic acid (PFDcA) and perfluoroundecanoic acid (PFUnA) in first-laid eggs. This correlative study provides a first insight into the potential of some long-chain perfluoroalkyl acids to disrupt maternal hormones deposition in eggs and raises the question about the consequences of increased testosterone deposition on the developing embryo.
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Affiliation(s)
- William Jouanneau
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS - La Rochelle Université, 17031 La Rochelle, France; Norwegian Polar Institute, Fram Centre, NO-9296 Tromsø, Norway.
| | - Don-Jean Léandri-Breton
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS - La Rochelle Université, 17031 La Rochelle, France; Department of Natural Resource Sciences, McGill University, Ste Anne-de-Bellevue, QC H9X 3V9, Canada
| | - Dorte Herzke
- NILU - Norwegian Institute for Air Research, Fram Centre, NO-9296 Tromsø, Norway
| | - Børge Moe
- NINA - Norwegian Institute for Nature Research, NO-7485 Trondheim, Norway
| | - Vladimir A Nikiforov
- NILU - Norwegian Institute for Air Research, Fram Centre, NO-9296 Tromsø, Norway
| | - Marie Pallud
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS - La Rochelle Université, 17031 La Rochelle, France
| | - Charline Parenteau
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS - La Rochelle Université, 17031 La Rochelle, France
| | | | - Olivier Chastel
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS - La Rochelle Université, 17031 La Rochelle, France
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Carter T, Schoenaker D, Adams J, Steel A. Paternal preconception modifiable risk factors for adverse pregnancy and offspring outcomes: a review of contemporary evidence from observational studies. BMC Public Health 2023; 23:509. [PMID: 36927694 PMCID: PMC10022288 DOI: 10.1186/s12889-023-15335-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 02/28/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND The preconception period represents transgenerational opportunities to optimize modifiable risk factors associated with both short and long-term adverse health outcomes for women, men, and children. As such, preconception care is recommended to couples during this time to enable them to optimise their health in preparation for pregnancy. Historically, preconception research predominately focuses on maternal modifiable risks and health behaviours associated with pregnancy and offspring outcomes; limited attention has been given to inform paternal preconception health risks and outcomes. This systematic review aims to advance paternal preconception research by synthesising the current evidence on modifiable paternal preconception health behaviours and risk factors to identify associations with pregnancy and/or offspring outcomes. METHODS Medline, Embase, Maternity and Infant care, CINAHL, PsycINFO, Scopus, and ISI Proceedings were searched on the 5th of January 2023, a date limit was set [2012-2023] in each database. A Google Scholar search was also conducted identifying all other relevant papers. Studies were included if they were observational, reporting associations of modifiable risk factors in the preconception period among males (e.g., identified as reproductive partners of pregnant women and/or fathers of offspring for which outcomes were reported) with adverse pregnancy and offspring outcomes. Study quality was assessed using the Newcastle-Ottawa Scale. Exposure and outcome heterogeneity precluded meta-analysis, and results were summarised in tables. RESULTS This review identified 56 cohort and nine case control studies. Studies reported on a range of risk factors and/or health behaviours including paternal body composition (n = 25), alcohol intake (n = 6), cannabis use (n = 5), physical activity (n = 2), smoking (n = 20), stress (n = 3) and nutrition (n = 13). Outcomes included fecundability, IVF/ISCI live birth, offspring weight, body composition/BMI, asthma, lung function, leukemia, preterm birth, and behavioural issues. Despite the limited number of studies and substantial heterogeneity in reporting, results of studies assessed as good quality showed that paternal smoking may increase the risk of birth defects and higher paternal BMI was associated with higher offspring birthweight. CONCLUSION The current evidence demonstrates a role of paternal preconception health in influencing outcomes related to pregnancy success and offspring health. The evidence is however limited and heterogenous, and further high-quality research is needed to inform clinical preconception care guidelines to support men and couples to prepare for a health pregnancy and child.
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Affiliation(s)
- Tristan Carter
- School of Public Health, Faculty of Health, University of Technology Sydney, Sydney, 2006, Australia.
| | - Danielle Schoenaker
- School of Primary Care, Population Sciences and Medical Education, Faculty of Medicine, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Jon Adams
- School of Public Health, Faculty of Health, University of Technology Sydney, Sydney, 2006, Australia
| | - Amie Steel
- School of Public Health, Faculty of Health, University of Technology Sydney, Sydney, 2006, Australia
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Patlar B. On the Role of Seminal Fluid Protein and Nucleic Acid Content in Paternal Epigenetic Inheritance. Int J Mol Sci 2022; 23:ijms232314533. [PMID: 36498858 PMCID: PMC9739459 DOI: 10.3390/ijms232314533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/10/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022] Open
Abstract
The evidence supports the occurrence of environmentally-induced paternal epigenetic inheritance that shapes the offspring phenotype in the absence of direct or indirect paternal care and clearly demonstrates that sperm epigenetics is one of the major actors mediating these paternal effects. However, in most animals, while sperm makes up only a small portion of the seminal fluid, males also have a complex mixture of proteins, peptides, different types of small noncoding RNAs, and cell-free DNA fragments in their ejaculate. These seminal fluid contents (Sfcs) are in close contact with the reproductive cells, tissues, organs, and other molecules of both males and females during reproduction. Moreover, their production and use are adjusted in response to environmental conditions, making them potential markers of environmentally- and developmentally-induced paternal effects on the next generation(s). Although there is some intriguing evidence for Sfc-mediated paternal effects, the underlying molecular mechanisms remain poorly defined. In this review, the current evidence regarding the links between seminal fluid and environmental paternal effects and the potential pathways and mechanisms that seminal fluid may follow in mediating paternal epigenetic inheritance are discussed.
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Affiliation(s)
- Bahar Patlar
- Animal Ecology, Department of Zoology, Martin-Luther University Halle-Wittenberg, 06099 Halle (Saale), Germany
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9
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Ragsdale A, Ortega-Recalde O, Dutoit L, Besson AA, Chia JHZ, King T, Nakagawa S, Hickey A, Gemmell NJ, Hore T, Johnson SL. Paternal hypoxia exposure primes offspring for increased hypoxia resistance. BMC Biol 2022; 20:185. [PMID: 36038899 PMCID: PMC9426223 DOI: 10.1186/s12915-022-01389-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 08/10/2022] [Indexed: 11/25/2022] Open
Abstract
Background In a time of rapid environmental change, understanding how the challenges experienced by one generation can influence the fitness of future generations is critically needed. Using tolerance assays and transcriptomic and methylome approaches, we use zebrafish as a model to investigate cross-generational acclimation to hypoxia. Results We show that short-term paternal exposure to hypoxia endows offspring with greater tolerance to acute hypoxia. We detected two hemoglobin genes that are significantly upregulated by more than 6-fold in the offspring of hypoxia exposed males. Moreover, the offspring which maintained equilibrium the longest showed greatest upregulation in hemoglobin expression. We did not detect differential methylation at any of the differentially expressed genes, suggesting that other epigenetic mechanisms are responsible for alterations in gene expression. Conclusions Overall, our findings suggest that an epigenetic memory of past hypoxia exposure is maintained and that this environmentally induced information is transferred to subsequent generations, pre-acclimating progeny to cope with hypoxic conditions. Supplementary Information The online version contains supplementary material available at 10.1186/s12915-022-01389-x.
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Affiliation(s)
| | | | - Ludovic Dutoit
- Department of Zoology, University of Otago, Dunedin, New Zealand
| | - Anne A Besson
- Department of Zoology, University of Otago, Dunedin, New Zealand
| | - Jolyn H Z Chia
- Department of Zoology, University of Otago, Dunedin, New Zealand
| | - Tania King
- Department of Zoology, University of Otago, Dunedin, New Zealand
| | - Shinichi Nakagawa
- Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Anthony Hickey
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Neil J Gemmell
- Department of Anatomy, University of Otago, Dunedin, New Zealand
| | - Timothy Hore
- Department of Anatomy, University of Otago, Dunedin, New Zealand
| | - Sheri L Johnson
- Department of Zoology, University of Otago, Dunedin, New Zealand.
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Aich U, Chowdhury S, Jennions MD. Separating the effects of paternal age and mating history: Evidence for sex-specific paternal effect in eastern mosquitofish. Evolution 2022; 76:1565-1577. [PMID: 35544673 PMCID: PMC9543789 DOI: 10.1111/evo.14498] [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: 09/12/2021] [Revised: 03/20/2022] [Accepted: 03/23/2022] [Indexed: 01/22/2023]
Abstract
Paternal age and past mating effort by males are often confounded, which can affect our understanding of a father's age effects. To our knowledge, only a few studies have standardized mating history when testing for effects of paternal age, and none has simultaneously disentangled how paternal age and mating history might jointly influence offspring traits. Here, we experimentally manipulated male mating history to tease apart its effects from those of paternal age on female fertility and offspring traits in the eastern mosquitofish (Gambusia holbrooki). Male age did not affect female fertility. However, males with greater past mating effort produced significantly larger broods. Paternal age and mating history interacted to affect sons' body size: sons sired by old-virgin males were larger than those sired by old-mated males, but this was not the case for younger fathers. Intriguingly, however, sons sired by old-virgin males tended to produce fewer sperms than those sired by old-mated males, indicating a potential trade-off in beneficial paternal effects. Finally, neither paternal age nor mating history affected daughter's fitness. Our results highlight that variation in offspring traits attributed to paternal age effect could partly arise due to a father's mating history, and not simply to his chronological age.
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Affiliation(s)
- Upama Aich
- Division of Ecology & EvolutionResearch School of BiologyThe Australian National UniversityCanberraAustralia,School of Biological SciencesMonash UniversityClaytonVictoriaAustralia
| | - Shawan Chowdhury
- School of Biological SciencesUniversity of QueenslandSaint LuciaQueenslandAustralia
| | - Michael D. Jennions
- Division of Ecology & EvolutionResearch School of BiologyThe Australian National UniversityCanberraAustralia
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Penney CM, Tabh JK, Wilson CC, Burness G. Within- and transgenerational plasticity of a temperate salmonid in response to thermal acclimation and acute temperature stress. Physiol Biochem Zool 2022; 95:484-499. [DOI: 10.1086/721478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Venney CJ, Wellband KW, Normandeau E, Houle C, Garant D, Audet C, Bernatchez L. Thermal regime during parental sexual maturation, but not during offspring rearing, modulates DNA methylation in brook charr ( Salvelinus fontinalis). Proc Biol Sci 2022; 289:20220670. [PMID: 35506232 PMCID: PMC9065957 DOI: 10.1098/rspb.2022.0670] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 04/11/2022] [Indexed: 01/04/2023] Open
Abstract
Epigenetic inheritance can result in plastic responses to changing environments being faithfully transmitted to offspring. However, it remains unclear how epigenetic mechanisms such as DNA methylation can contribute to multigenerational acclimation and adaptation to environmental stressors. Brook charr (Salvelinus fontinalis), an economically important salmonid, is highly sensitive to thermal stress and is of conservation concern in the context of climate change. We studied the effects of temperature during parental sexual maturation and offspring rearing on whole-genome DNA methylation in brook charr juveniles (fry). Parents were split between warm and cold temperatures during sexual maturation, mated in controlled breeding designs, then offspring from each family were split between warm (8°C) and cold (5°C) rearing environments. Using whole-genome bisulfite sequencing, we found 188 differentially methylated regions (DMRs) due to parental maturation temperature after controlling for family structure. By contrast, offspring rearing temperature had a negligible effect on offspring methylation. Stable intergenerational inheritance of DNA methylation and minimal plasticity in progeny could result in the transmission of acclimatory epigenetic states to offspring, priming them for a warming environment. Our findings have implications pertaining to the role of intergenerational epigenetic inheritance in response to ongoing climate change.
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Affiliation(s)
- Clare J. Venney
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, Canada G1 V 0A6
| | - Kyle W. Wellband
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, Canada G1 V 0A6
| | - Eric Normandeau
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, Canada G1 V 0A6
| | - Carolyne Houle
- Département de Biologie, Université de Sherbrooke, Sherbrooke, QC, Canada J1 K 2R1
| | - Dany Garant
- Département de Biologie, Université de Sherbrooke, Sherbrooke, QC, Canada J1 K 2R1
| | - Céline Audet
- Institut des sciences de la mer de Rimouski (ISMER), Université du Québec à Rimouski (UQAR), Rimouski, QC, Canada G5 L 2Z9
| | - Louis Bernatchez
- Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, Canada G1 V 0A6
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Lu Y, Ma Q, Chen C, Xu X, Zhang D. Effects of arbuscular mycorrhizal fungi on the nitrogen distribution in endangered Torreya jackii under nitrogen limitation. PLANTA 2021; 254:53. [PMID: 34402996 DOI: 10.1007/s00425-021-03704-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Arbuscular mycorrhizal fungi regulated the distribution of nitrogen in the leaves, thereby facilitating the adaptation of the endangered plant Torreya jackii to a low-nitrogen environment. Rhizophagus irregularis was inoculated into sterilized soil to investigate its impact on the distribution ratio of leaf nitrogen in cell wall proteins, cell membrane proteins, water-soluble proteins, and photosynthetic systems which includes the carboxylation system (PC), energy metabolism (PB), and light-harvesting system in the endangered species Torreya jackii. The results showed that R. irregularis reduced the specific leaf weight and the distribution ratio of nitrogen in cell wall proteins in the leaves of T. jackii, whereas it enhanced the distribution ratio of nitrogen in cell membrane proteins and water-soluble proteins. R. irregularis enabled more nitrogen uptake for growth by decreasing the distribution of nitrogen to the structural substances. At low-nitrogen levels, inoculation with R. irregularis improved the plant height (18.78 ~ 36.04%), shoot dry weight (50.53 ~ 64.33%), total dry weight (42.86 ~ 52.82%), maximal net photosynthetic rate (Pmax) (16.83 ~ 20.11%), photosynthetic nitrogen use efficiency (PNUE) (40.01 ~ 43.14%), PC (33.56 ~ 38.59%) and PB (29.08 ~ 34.02%). However, it did not substantially affect the leaf nitrogen content per unit area or the leaf nitrogen content per unit mass. Moreover, Pmax exhibited a significant positive correlation with PC and PB, and all three parameters showed a significant positive correlation with the PNUE, thereby revealing that R. irregularis increased the photosynthetic capacity and PNUE of T. jackii through boosting PC and PB.
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Affiliation(s)
- Yin Lu
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China.
| | - Qing Ma
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Chuan Chen
- West Lake Scenic Spot Management Committee, Hangzhou, 310007, China
| | - Xiaolu Xu
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China
| | - Deyong Zhang
- College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, 310015, China
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