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Kuswara K, Shrewsbury VA, Macdonald JA, Chung A, Hill B. Sharing the motherload: A review and development of the CO-Parent conceptual model for early childhood obesity prevention. Obes Rev 2024:e13853. [PMID: 39419655 DOI: 10.1111/obr.13853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 09/09/2024] [Accepted: 10/01/2024] [Indexed: 10/19/2024]
Abstract
Fathers remain under-represented in early childhood obesity prevention research and interventions, despite growing evidence that paternal biopsychosocial factors and behaviors from pre- and post-conception can influence lifelong offspring health. Informed by a literature review of high-quality evidence, "CO-Parent" (childhood obesity-Parent) is a new conceptual model underpinned by couple interdependence theory and a socioecological framework. Literature was searched for the concepts parental AND weight-related behaviors AND child weight or weight-related behaviors, in databases including MEDLINE, PsycINFO, Global Health, Scopus, and SocINDEX. Prior evidence syntheses were prioritized as source data to inform model development. "CO-Parent" illustrates the interdependent and independent effects of maternal and paternal weight, weight-related behaviors, and well-being, across preconception, pregnancy, postpartum, and the early years on child weight-related behaviors and weight up to age five. The influences of public policy, social, environmental, economic, community, and other complex modifiable mediating factors are included in the model. The "CO-Parent" conceptual model paves the way for a paradigm shift by recognizing fathers as key figures in early childhood obesity prevention initiatives, encouraging them to "share the motherload." It highlights both the independent and interdependent roles fathers play in the epidemiology of obesity starting from preconception. CO-Parent also provides the foundations necessary to guide future theory and research to be more inclusive of fathers to further understanding of the independent and interdependent influences of parents in early childhood obesity prevention.
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Affiliation(s)
- Konsita Kuswara
- The Centre of Research Excellence in Translating Early Prevention of Obesity in Childhood (CRE EPOCH-Translate), Charles Perkins Centre, University of Sydney, Camperdown, New South Wales, Australia
| | - Vanessa A Shrewsbury
- School of Health Sciences, College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, New South Wales, Australia
- Food and Nutrition Research Program, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
| | - Jacqui A Macdonald
- Centre for Social and Early Emotional Development, School of Psychology, Deakin University, Geelong, Victoria, Australia
- Centre for Adolescent Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - Alexandra Chung
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Briony Hill
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
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Falara E, Metallinou D, Nanou C, Vlachou M, Diamanti A. Perinatal Exposure to Tobacco Smoke and Its Association with the Maternal and Offspring Microbiome: A Systematic Review. Healthcare (Basel) 2024; 12:1874. [PMID: 39337215 PMCID: PMC11431162 DOI: 10.3390/healthcare12181874] [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: 06/30/2024] [Revised: 09/11/2024] [Accepted: 09/12/2024] [Indexed: 09/30/2024] Open
Abstract
BACKGROUND The human microbiome, comprising trillions of microorganisms, significantly influences human health and disease. During critical periods like the perinatal phase, the microbiome undergoes significant changes, impacting lifelong health. Tobacco smoke, a known environmental pollutant, has adverse effects on health, particularly during pregnancy. Despite this, its association with the perinatal microbiome remains understudied. METHODS We conducted a systematic review to integrate findings on perinatal tobacco smoke exposure and its association with the maternal and neonatal microbiomes. We conducted a comprehensive literature search in the PubMed, Scopus, and Web of Science databases from January 2000 to February 2024. We selected studies that met predefined inclusion criteria and performed data extraction. RESULTS The review included eight studies that revealed diverse associations of perinatal tobacco exposure with the maternal and neonatal microbiome. Active smoking during pregnancy was linked to alterations in microbiome composition and diversity in children. Maternal smoking correlated with increased Firmicutes abundance and decreased Akkermansia muciniphila abundance in offspring. Additionally, exposure to thirdhand smoke in neonatal intensive care units was related to infant microbiome diversity. Infants exposed to tobacco smoke showed various microbial changes, suggesting potential implications for childhood health outcomes, including obesity risk. CONCLUSIONS Perinatal exposure to tobacco smoke exerts significant influence on the maternal and neonatal microbiomes, with potential implications for long-term health outcomes. Addressing socioeconomic and psychological barriers to smoking cessation, implementing stricter smoking regulations, and promoting public health campaigns are essential steps towards reducing tobacco-related harm during the perinatal period. Further longitudinal studies and standardized assessment methods are needed to validate these findings and guide the development of effective preventive measures.
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Affiliation(s)
| | | | | | - Maria Vlachou
- Department of Midwifery, Faculty of Health and Caring Sciences, University of West Attica, 12243 Egaleo, Greece; (E.F.); (D.M.); (C.N.); (A.D.)
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Alemu BK, Wu L, Azeze GG, Lau SL, Wang Y, Wang CC. Microbiota-targeted interventions and clinical implications for maternal-offspring health: An umbrella review of systematic reviews and meta-analyses of randomised controlled trials. J Glob Health 2024; 14:04177. [PMID: 39269153 PMCID: PMC11395958 DOI: 10.7189/jogh.14.04177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2024] Open
Abstract
Background Microbes in the human body are the determinants of life-long health and disease. Microbiome acquisition starts in utero and matures during early childhood through breastfeeding. However, maternal gut dysbiosis affects the maternal-offspring microbiome interplay. Lines of evidence on dysbiosis-targeted interventions and their effect on maternal-offspring health and gut microbiome are inconsistent and inconclusive. Therefore, this study summarised studies to identify the most common microbiota-targeted intervention during pregnancy and lactation and to comprehensively evaluate its effects on maternal and offspring health. Methods This umbrella review was conducted by systematically searching databases such as PubMed and the Web of Science from inception to 2 September 2023. The quality was assessed using the Assessment of Multiple Systematic Reviews-2 checklist. The Grading of Recommendations Assessment, Development, and Evaluation was used for grading the strength and certainty of the studies. The overlap of primary studies was quantified by the corrected covered area score. Results A total of 17 systematic reviews and meta-analyses with 219 randomised controlled trials, 39 113 mothers, and 20 915 infants were included in this study. About 88% of studies had moderate and above certainty of evidence. Probiotics were the most common and effective interventions at reducing gestational diabetes risk (fasting blood glucose with the mean difference (MD) = -2.92, -0.05; I2 = 45, 98.97), fasting serum insulin (MD = -2.3, -2.06; I2 = 45, 77), glycated haemoglobin (Hb A1c) = -0.16; I2 = 0.00)), Homeostatic Model Assessment of insulin resistance (HOMA-IR) (MD = -20.55, -0.16; I2 = 0.00, 72.00), and lipid metabolism (MD = -5.47, 0.98; I2 = 0.00, 90.65). It was also effective in preventing and treating mastitis (risk ratio (RR) = 0.49; I2 = 2.00), relieving anxiety symptoms (MD = -0.99, 0.01; I2 = 0.00, 70.00), depression in lactation (MD = -0.46, -0.22; I2 = 0.00, 74.00) and reducing recto-vaginal bacterial colonisation (odds ratio (OR) = 0.62; I2 = 4.80), and with no adverse events. It also effectively remodelled the infant gut microbiome (MD = 0.89; I2 = 95.01) and prevented infant allergies. However, studies on pregnancy outcomes and preeclampsia incidences are limited. Conclusions Our findings from high-quality studies identify that probiotics are the most common microbiome interventions during pregnancy and lactation. Probiotics have a strong impact on maternal and offspring health through maintaining gut microbiome homeostasis. However, further studies are needed on the effect of microbiota-targeted interventions on maternal cardiometabolic health, pregnancy, and neonatal outcomes. Registration This umbrella review was registered with PROSPERO, CRD42023437098.
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Affiliation(s)
- Bekalu Kassie Alemu
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR
- Department of Midwifery, College of Medicine and Health Sciences, Debre Markos University, Ethiopia
| | - Ling Wu
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR
| | - Getnet Gedefaw Azeze
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR
- Department of Midwifery, College of Medicine and Health Sciences, Injibara University, Ethiopia
| | - So Ling Lau
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR
| | - Yao Wang
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR
- LI Ka Shing Institute of Health Sciences; Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR
| | - Chi Chiu Wang
- Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR
- LI Ka Shing Institute of Health Sciences; Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR
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Camarini R, Marianno P, Hanampa-Maquera M, Oliveira SDS, Câmara NOS. Prenatal Stress and Ethanol Exposure: Microbiota-Induced Immune Dysregulation and Psychiatric Risks. Int J Mol Sci 2024; 25:9776. [PMID: 39337263 PMCID: PMC11431796 DOI: 10.3390/ijms25189776] [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: 06/14/2024] [Revised: 08/22/2024] [Accepted: 08/25/2024] [Indexed: 09/30/2024] Open
Abstract
Changes in maternal gut microbiota due to stress and/or ethanol exposure can have lasting effects on offspring's health, particularly regarding immunity, inflammation response, and susceptibility to psychiatric disorders. The literature search for this review was conducted using PubMed and Scopus, employing keywords and phrases related to maternal stress, ethanol exposure, gut microbiota, microbiome, gut-brain axis, diet, dysbiosis, progesterone, placenta, prenatal development, immunity, inflammation, and depression to identify relevant studies in both preclinical and human research. Only a limited number of reviews were included to support the arguments. The search encompassed studies from the 1990s to the present. This review begins by exploring the role of microbiota in modulating host health and disease. It then examines how disturbances in maternal microbiota can affect the offspring's immune system. The analysis continues by investigating the interplay between stress and dysbiosis, focusing on how prenatal maternal stress influences both maternal and offspring microbiota and its implications for susceptibility to depression. The review also considers the impact of ethanol consumption on gut dysbiosis, with an emphasis on the effects of prenatal ethanol exposure on both maternal and offspring microbiota. Finally, it is suggested that maternal gut microbiota dysbiosis may be significantly exacerbated by the combined effects of stress and ethanol exposure, leading to immune system dysfunction and chronic inflammation, which could increase the risk of depression in the offspring. These interactions underscore the potential for novel mental health interventions that address the gut-brain axis, especially in relation to maternal and offspring health.
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Affiliation(s)
- Rosana Camarini
- Department of Pharmacology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo 05508-900, Brazil
| | - Priscila Marianno
- Department of Pharmacology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo 05508-900, Brazil
| | - Maylin Hanampa-Maquera
- Department of Pharmacology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo 05508-900, Brazil
| | - Samuel Dos Santos Oliveira
- Department of Immunology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo 05508-900, Brazil
| | - Niels Olsen Saraiva Câmara
- Department of Immunology, Institute of Biomedical Sciences, Universidade de São Paulo, São Paulo 05508-900, Brazil
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Zhang L, Li Q, Huang J, Zou Q, Zou H, Zhang X, Su Y, Li C. Causal associations between gut microbiota and premature rupture of membranes: a two-sample Mendelian randomization study. Front Immunol 2024; 15:1440232. [PMID: 39286243 PMCID: PMC11402717 DOI: 10.3389/fimmu.2024.1440232] [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: 05/29/2024] [Accepted: 08/12/2024] [Indexed: 09/19/2024] Open
Abstract
Background Previous study has indicated a potential link between gut microbiota and maternal pregnancy outcomes. However, the causal relationship between gut microbiota and premature rupture of membranes (PROM) remains a topic of ongoing debate. Methods A two-sample Mendelian Randomization (MR) study was used to investigate the relationship between gut microbiota and PROM. Genetic data on gut microbiota was obtained from the MiBioGen consortium's largest genome-wide association study (GWAS) (n=14,306). Genetic data on PROM (3011 cases and 104247 controls) were sourced from publicly available GWAS data from the Finnish National Biobank FinnGen consortium. Various methods including Inverse variance weighted (IVW), MR-Egger, simple mode, weighted median, and weighted mode were utilized to assess the causal relationship by calculating the odd ratio (OR) value and confidence interval (CI). Sensitivity analyses for quality control were performed using MR-Egger intercept tests, Cochran's Q tests, and leave-one-out analyses. Results The IVW method revealed that class Mollicutes (IVW, OR=0.773, 95%CI: 0.61-0.981, pval = 0.034), genus Marvinbryantia (IVW, OR=00.736, 95%CI: 0.555-0.977, pval = 0.034), genus Ruminooccaceae UCG003 (IVW, OR=0.734, 95%CI: 0.568-0.947, pval = 0.017) and phylum Tenericutes (IVW, OR=0.773, 95%CI: 0.566-1.067, pval = 0.034) were associated with a reduced risk of PROM, while genus Collinsella (IVW, OR=1.444, 95%CI: 1.028-2.026, pval = 0.034), genus Intestinibacter (IVW, OR=1.304, 95%CI: 1.047-1.623, pval = 0.018) and genus Turicibacter (IVW, OR=1.282, 95%CI: 1.02-1.611, pval = 0.033) increased the risk of PROM. Based on the other four supplementary methods, six gut microbiota may have a potential effect on PROM. Due to the presence of pleiotropy (pval=0.045), genus Lachnoclostridium should be ruled out. No evidence of horizontal pleiotropy or heterogeneity was found in other microbiota (pval >0.05). Conclusions In this study, we have discovered a causal relationship between the presence of specific probiotics and pathogens in the host and the risk of PROM. The identification of specific gut microbiota associated with PROM through MR studies offers a novel approach to diagnosing and treating this condition, thereby providing a new strategy for clinically preventing PROM.
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Affiliation(s)
- Lei Zhang
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, China
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Qian Li
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, China
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jiafeng Huang
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University (Amy Medical University), and The Key Laboratory of Tumor Immunopathology, The Ministry of Education of China, Chongqing, China
| | - Qin Zou
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, China
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Hua Zou
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, China
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xinyuan Zhang
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, China
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yan Su
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, China
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Chunli Li
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, China
- Department of Clinical Laboratory, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
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Xie Y, Zhao F, Wang Y, Borowski S, Freitag N, Tirado-Gonzalez I, Hofsink N, Matschl U, Plösch T, Garcia MG, Blois SM. Fetal growth restriction induced by maternal gal-3 deficiency is associated with altered gut-placenta axis. Cell Death Dis 2024; 15:575. [PMID: 39117607 PMCID: PMC11310209 DOI: 10.1038/s41419-024-06962-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 07/28/2024] [Accepted: 07/30/2024] [Indexed: 08/10/2024]
Abstract
Adverse intrauterine conditions may cause fetal growth restriction (FGR), a pregnancy complication frequently linked to perinatal morbidity and mortality. Although many studies have focused on FGR, the pathophysiological processes underlying this disorder are complex and incompletely understood. We have recently determined that galectin-3 (gal-3), a β-galactoside-binding protein, regulates pregnancy-associated processes, including uterine receptibility, maternal vascular adaptation and placentation. Because gal-3 is expressed at both sides of the maternal-fetal interface, we unraveled the contribution of maternal- and paternal-derived gal-3 on fetal-placental development in the prenatal window and its effects on the post-natal period. Deficiency of maternal gal-3 induced maternal gut microbiome dysbiosis, resulting in a sex-specific fetal growth restriction mainly observed in female fetuses and offspring. In addition, poor placental metabolic adaptions (characterized by decreased trophoblast glycogen content and insulin-like growth factor 2 (Igf2) gene hypomethylation) were only associated with a lack of maternal-derived gal-3. Paternal gal-3 deficiency caused compromised vascularization in the placental labyrinth without affecting fetal growth trajectory. Thus, maternal-derived gal-3 may play a key role in fetal-placental development through the gut-placenta axis.
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Affiliation(s)
- Yiran Xie
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Fangqi Zhao
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Yiru Wang
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sophia Borowski
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH) and Institute of Biochemistry, Berlin, Germany and Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK), partner site Berlin, Berlin, Germany
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Experimental and Clinical Research Center (ECRC), Berlin, Germany
| | - Nancy Freitag
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH) and Institute of Biochemistry, Berlin, Germany and Deutsches Zentrum für Herz-Kreislauf-Forschung (DZHK), partner site Berlin, Berlin, Germany
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Experimental and Clinical Research Center (ECRC), Berlin, Germany
| | - Irene Tirado-Gonzalez
- Institute for Tumor Biology and Experimental Therapy, Georg-Speyer-Haus, Frankfurt, Germany
| | - Naomi Hofsink
- Department of Obstetrics and Gynaecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Urte Matschl
- Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Torsten Plösch
- Department of Obstetrics and Gynaecology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Perinatal Neurobiology, Department of Human Medicine, School of Medicine and Health Sciences, Carlvon Ossietzky University Oldenburg, Oldenburg, Germany
| | - Mariana G Garcia
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sandra M Blois
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Basak S, Mallick R, Navya Sree B, Duttaroy AK. Placental Epigenome Impacts Fetal Development: Effects of Maternal Nutrients and Gut Microbiota. Nutrients 2024; 16:1860. [PMID: 38931215 PMCID: PMC11206482 DOI: 10.3390/nu16121860] [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: 05/02/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Evidence is emerging on the role of maternal diet, gut microbiota, and other lifestyle factors in establishing lifelong health and disease, which are determined by transgenerationally inherited epigenetic modifications. Understanding epigenetic mechanisms may help identify novel biomarkers for gestation-related exposure, burden, or disease risk. Such biomarkers are essential for developing tools for the early detection of risk factors and exposure levels. It is necessary to establish an exposure threshold due to nutrient deficiencies or other environmental factors that can result in clinically relevant epigenetic alterations that modulate disease risks in the fetus. This narrative review summarizes the latest updates on the roles of maternal nutrients (n-3 fatty acids, polyphenols, vitamins) and gut microbiota on the placental epigenome and its impacts on fetal brain development. This review unravels the potential roles of the functional epigenome for targeted intervention to ensure optimal fetal brain development and its performance in later life.
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Affiliation(s)
- Sanjay Basak
- Molecular Biology Division, ICMR-National Institute of Nutrition, Indian Council of Medical Research, Hyderabad 500007, India; (S.B.); (B.N.S.)
| | - Rahul Mallick
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, 70211 Kuopio, Finland;
| | - Boga Navya Sree
- Molecular Biology Division, ICMR-National Institute of Nutrition, Indian Council of Medical Research, Hyderabad 500007, India; (S.B.); (B.N.S.)
| | - Asim K. Duttaroy
- Department of Nutrition, Institute of Medical Sciences, Faculty of Medicine, University of Oslo, 0317 Oslo, Norway
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Collado MC, Stewart CJ. Editorial overview: A critical crossroad in microbiome research: Where do we go? Curr Opin Microbiol 2024; 78:102438. [PMID: 38377654 DOI: 10.1016/j.mib.2024.102438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Affiliation(s)
- Maria Carmen Collado
- Institute of Agrochemistry and Food Technology-National Research Council (IATA-CSIC), Valencia, Spain.
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Bali P, Lal P, Sivapuram MS, Kutikuppala LVS, Avti P, Chanana A, Kumar S, Anand A. Mind over Microbes: Investigating the Interplay between Lifestyle Factors, Gut Microbiota, and Brain Health. Neuroepidemiology 2024:1-23. [PMID: 38531341 DOI: 10.1159/000538416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 03/08/2024] [Indexed: 03/28/2024] Open
Abstract
BACKGROUND The gut microbiota (GM) of the human body comprises several species of microorganisms. This microorganism plays a significant role in the physiological and pathophysiological processes of various human diseases. METHODS The literature review includes studies that describe causative factors that influence GM. The GM is sensitive to various factors like circadian rhythms, environmental agents, physical activity, nutrition, and hygiene that together impact the functioning and composition of the gut microbiome. This affects the health of the host, including the psycho-neural aspects, due to the interconnectivity between the brain and the gut. Hence, this paper examines the relationship of GM with neurodegenerative disorders in the context of these aforesaid factors. CONCLUSION Future studies that identify the regulatory pathways associated with gut microbes can provide a causal link between brain degeneration and the gut at a molecular level. Together, this review could be helpful in designing preventive and treatment strategies aimed at GM, so that neurodegenerative diseases can be treated.
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Affiliation(s)
- Parul Bali
- Department of Biophysics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
- Department of Neuroscience, University of Florida, Gainesville, Florida, USA
| | - Parth Lal
- Advance Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Madhava Sai Sivapuram
- Department of General Medicine, Dr. Pinnamaneni Siddhartha Institute of Medical Sciences and Research Foundation, Peda Avutapalli, India
| | | | - Pramod Avti
- Department of Biophysics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | - Saurabh Kumar
- CCRYN-Collaborative Centre for Mind Body Intervention through Yoga, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Akshay Anand
- CCRYN-Collaborative Centre for Mind Body Intervention through Yoga, Postgraduate Institute of Medical Education and Research, Chandigarh, India
- Neuroscience Research Lab, Department of Neurology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
- Centre for Cognitive Science and Phenomenology, Panjab University, Chandigarh, India
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Alvernaz SA, Wenzel ES, Nagelli U, Pezley LB, LaBomascus B, Gilbert JA, Maki PM, Tussing-Humphreys L, Peñalver Bernabé B. Inflammatory Dietary Potential Is Associated with Vitamin Depletion and Gut Microbial Dysbiosis in Early Pregnancy. Nutrients 2024; 16:935. [PMID: 38612969 PMCID: PMC11013194 DOI: 10.3390/nu16070935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 04/14/2024] Open
Abstract
Pregnancy alters many physiological systems, including the maternal gut microbiota. Diet is a key regulator of this system and can alter the host immune system to promote inflammation. Multiple perinatal disorders have been associated with inflammation, maternal metabolic alterations, and gut microbial dysbiosis, including gestational diabetes mellitus, pre-eclampsia, preterm birth, and mood disorders. However, the effects of high-inflammatory diets on the gut microbiota during pregnancy have yet to be fully explored. We aimed to address this gap using a system-based approach to characterize associations among dietary inflammatory potential, a measure of diet quality, and the gut microbiome during pregnancy. Forty-seven pregnant persons were recruited prior to 16 weeks of gestation. Participants completed a food frequency questionnaire (FFQ) and provided fecal samples. Dietary inflammatory potential was assessed using the Dietary Inflammatory Index (DII) from the FFQ data. Fecal samples were analyzed using 16S rRNA amplicon sequencing. Differential taxon abundances with respect to the DII score were identified, and the microbial metabolic potential was predicted using PICRUSt2. Inflammatory diets were associated with decreased vitamin and mineral intake and a dysbiotic gut microbiota structure and predicted metabolism. Gut microbial compositional differences revealed a decrease in short-chain fatty acid producers such as Faecalibacterium, and an increase in predicted vitamin B12 synthesis, methylglyoxal detoxification, galactose metabolism, and multidrug efflux systems in pregnant individuals with increased DII scores. Dietary inflammatory potential was associated with a reduction in the consumption of vitamins and minerals and predicted gut microbiota metabolic dysregulation.
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Affiliation(s)
- Suzanne A. Alvernaz
- Department of Biomedical Engineering, University of Illinois, Chicago, IL 60607, USA; (S.A.A.); (U.N.)
| | - Elizabeth S. Wenzel
- Department of Psychology, University of Illinois, Chicago, IL 60607, USA; (E.S.W.); (P.M.M.)
| | - Unnathi Nagelli
- Department of Biomedical Engineering, University of Illinois, Chicago, IL 60607, USA; (S.A.A.); (U.N.)
| | - Lacey B. Pezley
- Department of Kinesiology and Nutrition, University of Illinois, Chicago, IL 60612, USA; (L.B.P.); (B.L.); (L.T.-H.)
| | - Bazil LaBomascus
- Department of Kinesiology and Nutrition, University of Illinois, Chicago, IL 60612, USA; (L.B.P.); (B.L.); (L.T.-H.)
| | - Jack A. Gilbert
- Department of Pediatrics, University of California, San Diego, CA 92093, USA;
- Scripps Oceanographic Institute, University of California, San Diego, CA 92037, USA
| | - Pauline M. Maki
- Department of Psychology, University of Illinois, Chicago, IL 60607, USA; (E.S.W.); (P.M.M.)
- Department of Psychiatry, University of Illinois, Chicago, IL 60612, USA
- Department of Obstetrics and Gynecology, University of Illinois, Chicago, IL 60612, USA
| | - Lisa Tussing-Humphreys
- Department of Kinesiology and Nutrition, University of Illinois, Chicago, IL 60612, USA; (L.B.P.); (B.L.); (L.T.-H.)
| | - Beatriz Peñalver Bernabé
- Department of Biomedical Engineering, University of Illinois, Chicago, IL 60607, USA; (S.A.A.); (U.N.)
- Center for Bioinformatics and Quantitative Biology, University of Illinois, Chicago, IL 60612, USA
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11
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Garmaeva S, Sinha T, Gulyaeva A, Kuzub N, Spreckels JE, Andreu-Sánchez S, Gacesa R, Vich Vila A, Brushett S, Kruk M, Dekens J, Sikkema J, Kuipers F, Shkoporov AN, Hill C, Scherjon S, Wijmenga C, Fu J, Kurilshikov A, Zhernakova A. Transmission and dynamics of mother-infant gut viruses during pregnancy and early life. Nat Commun 2024; 15:1945. [PMID: 38431663 PMCID: PMC10908809 DOI: 10.1038/s41467-024-45257-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 01/16/2024] [Indexed: 03/05/2024] Open
Abstract
Early development of the gut ecosystem is crucial for lifelong health. While infant gut bacterial communities have been studied extensively, the infant gut virome remains under-explored. To study the development of the infant gut virome over time and the factors that shape it, we longitudinally assess the composition of gut viruses and their bacterial hosts in 30 women during and after pregnancy and in their 32 infants during their first year of life. Using shotgun metagenomic sequencing applied to dsDNA extracted from Virus-Like Particles (VLPs) and bacteria, we generate 205 VLP metaviromes and 322 total metagenomes. With this data, we show that while the maternal gut virome composition remains stable during late pregnancy and after birth, the infant gut virome is dynamic in the first year of life. Notably, infant gut viromes contain a higher abundance of active temperate phages compared to maternal gut viromes, which decreases over the first year of life. Moreover, we show that the feeding mode and place of delivery influence the gut virome composition of infants. Lastly, we provide evidence of co-transmission of viral and bacterial strains from mothers to infants, demonstrating that infants acquire some of their virome from their mother's gut.
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Affiliation(s)
- Sanzhima Garmaeva
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Trishla Sinha
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Anastasia Gulyaeva
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Nataliia Kuzub
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Johanne E Spreckels
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Sergio Andreu-Sánchez
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Ranko Gacesa
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Arnau Vich Vila
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Siobhan Brushett
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
- Department of Health Sciences, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Marloes Kruk
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Jackie Dekens
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
- University Medical Center Groningen, Center for Development and Innovation, Groningen, Netherlands
| | - Jan Sikkema
- University Medical Center Groningen, Center for Development and Innovation, Groningen, Netherlands
| | - Folkert Kuipers
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
- European Research Institute for the Biology of Ageing (ERIBA), University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Andrey N Shkoporov
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Colin Hill
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Sicco Scherjon
- Department of Obstetrics and Gynecology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Cisca Wijmenga
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Jingyuan Fu
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
- Department of Pediatrics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Alexander Kurilshikov
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Alexandra Zhernakova
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
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12
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Alvernaz SA, Wenzel ES, Nagelli U, Pezley LB, LaBomascus B, Gilbert JA, Maki PM, Tussing-Humphreys L, Peñalver Bernabé B. Inflammatory dietary potential is associated with vitamin depletion and gut microbial dysbiosis in early pregnancy. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2023.12.02.23299325. [PMID: 38076865 PMCID: PMC10705629 DOI: 10.1101/2023.12.02.23299325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Background Pregnancy alters many physiological systems, including the maternal gut microbiota. Diet is a key regulator of this system and can alter the host immune system to promote inflammation. Multiple perinatal disorders have been associated with inflammation, maternal metabolic alterations, and gut microbial dysbiosis, including gestational diabetes mellitus, preeclampsia, preterm birth, and mood disorders. However, the effects of high inflammatory diets on the gut microbiota during pregnancy have yet to be fully explored. Objective To use a systems-based approach to characterize associations among dietary inflammatory potential, a measure of diet quality, and the gut microbiome during pregnancy. Methods Forty-nine pregnant persons were recruited prior to 16 weeks of gestation. Participants completed a food frequency questionnaire (FFQ) and provided fecal samples. Dietary inflammatory potential was assessed using the Dietary Inflammatory Index (DII) from FFQ data. Fecal samples were analyzed using 16S rRNA amplicon sequencing. Differential taxon abundance with respect to DII score were identified, and microbial metabolic potential was predicted using PICRUSt2. Results Inflammatory diets were associated with decreased vitamin and mineral intake and dysbiotic gut microbiota structure and predicted metabolism. Gut microbial compositional differences revealed a decrease in short chain fatty acid producers such as Faecalibacterium, and an increase in predicted vitamin B12 synthesis, methylglyoxal detoxification, galactose metabolism and multi drug efflux systems in pregnant individuals with increased DII scores. Conclusions Dietary inflammatory potential was associated with a reduction in the consumption of vitamins & minerals and predicted gut microbiota metabolic dysregulation.
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Affiliation(s)
- Suzanne A. Alvernaz
- Department of Biomedical Engineering, University of Illinois, Chicago, IL, USA
| | | | - Unnathi Nagelli
- Department of Biomedical Engineering, University of Illinois, Chicago, IL, USA
| | - Lacey B. Pezley
- Department of Kinesiology and Nutrition, University of Illinois, Chicago, IL, USA
| | - Bazil LaBomascus
- Department of Kinesiology and Nutrition, University of Illinois, Chicago, IL, USA
| | - Jack A. Gilbert
- Department of Pediatrics, University of California, San Diego, CA, USA
- Scripps Oceanographic Institute, University of California, San Diego, CA, USA
| | - Pauline M. Maki
- Department of Psychology, University of Illinois, Chicago, IL, USA
- Department of Psychiatry, University of Illinois, Chicago, IL, USA
- Department of Obstetrics and Gynecology, University of Illinois, Chicago, IL, USA
| | | | - Beatriz Peñalver Bernabé
- Department of Biomedical Engineering, University of Illinois, Chicago, IL, USA
- Center for Bioinformatics and Quantitative Biology, University of Illinois, Chicago, IL, USA
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13
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Amato KR, Pradhan P, Mallott EK, Shirola W, Lu A. Host-gut microbiota interactions during pregnancy. Evol Med Public Health 2024; 12:7-23. [PMID: 38288320 PMCID: PMC10824165 DOI: 10.1093/emph/eoae001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/07/2023] [Indexed: 01/31/2024] Open
Abstract
Mammalian pregnancy is characterized by a well-known suite of physiological changes that support fetal growth and development, thereby positively affecting both maternal and offspring fitness. However, mothers also experience trade-offs between current and future maternal reproductive success, and maternal responses to these trade-offs can result in mother-offspring fitness conflicts. Knowledge of the mechanisms through which these trade-offs operate, as well as the contexts in which they operate, is critical for understanding the evolution of reproduction. Historically, hormonal changes during pregnancy have been thought to play a pivotal role in these conflicts since they directly and indirectly influence maternal metabolism, immunity, fetal growth and other aspects of offspring development. However, recent research suggests that gut microbiota may also play an important role. Here, we create a foundation for exploring this role by constructing a mechanistic model linking changes in maternal hormones, immunity and metabolism during pregnancy to changes in the gut microbiota. We posit that marked changes in hormones alter maternal gut microbiome composition and function both directly and indirectly via impacts on the immune system. The gut microbiota then feeds back to influence maternal immunity and metabolism. We posit that these dynamics are likely to be involved in mediating maternal and offspring fitness as well as trade-offs in different aspects of maternal and offspring health and fitness during pregnancy. We also predict that the interactions we describe are likely to vary across populations in response to maternal environments. Moving forward, empirical studies that combine microbial functional data and maternal physiological data with health and fitness outcomes for both mothers and infants will allow us to test the evolutionary and fitness implications of the gestational microbiota, enriching our understanding of the ecology and evolution of reproductive physiology.
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Affiliation(s)
- Katherine R Amato
- Department of Anthropology, Northwestern University, Evanston, IL 60208, USA
| | - Priyanka Pradhan
- Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Elizabeth K Mallott
- Department of Anthropology, Northwestern University, Evanston, IL 60208, USA
- Department of Biology, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Wesley Shirola
- Department of Psychology, Northwestern University, Evanston, IL 60208, USA
| | - Amy Lu
- Department of Anthropology, Stony Brook University, Stony Brook, NY 11794, USA
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14
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David P, Claud EC. Necrotizing Enterocolitis and the Preterm Infant Microbiome. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1449:29-41. [PMID: 39060729 DOI: 10.1007/978-3-031-58572-2_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] [Indexed: 07/28/2024]
Abstract
Preterm infants differ significantly from their term infant counterparts regarding bacterial colonization patterns related to maternal microbiota diversity, mode of delivery, feeding type, antibiotic exposure, and the environmental influences related to prolonged hospitalization in the neonatal intensive care unit (NICU). Necrotizing enterocolitis (NEC), a multifactorial intestinal disorder characterized by ischemic bowel disease, disproportionately impacts preterm infants and has a high disease burden. Recent studies in the basic, translational, and clinical scientific literature have advanced knowledge into this complex disease process. Despite the explosion of research into NEC, however, there is a still a great deal unknown about this devastating illness. Additionally, the disease morbidity and mortality for NEC remain high despite advances in therapy options. This chapter reviews the current literature into the preterm infant microbiome, pathogenesis of NEC, potential targets for altering preterm microbiome, influence of microbiome on other organ systems, long-term implications of microbiome dysbiosis, and future directions of study.
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Affiliation(s)
- Pyone David
- Department of Pediatrics, Pritzker School of Medicine, The University of Chicago, Chicago, IL, USA.
| | - Erika C Claud
- Department of Pediatrics, Pritzker School of Medicine, The University of Chicago, Chicago, IL, USA.
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15
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Webb SE, Orkin JD, Williamson RE, Melin AD. Activity budget and gut microbiota stability and flexibility across reproductive states in wild capuchin monkeys in a seasonal tropical dry forest. Anim Microbiome 2023; 5:63. [PMID: 38102711 PMCID: PMC10724892 DOI: 10.1186/s42523-023-00280-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 11/05/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Energy demands associated with pregnancy and lactation are significant forces in mammalian evolution. To mitigate increased energy costs associated with reproduction, female mammals have evolved behavioural and physiological responses. Some species alter activity to conserve energy during pregnancy and lactation, while others experience changes in metabolism and fat deposition. Restructuring of gut microbiota with shifting reproductive states may also help females increase the energy gained from foods, especially during pregnancy. The goal of this study was to examine the relationships among behaviour, gut microbiota composition, and reproductive state in a wild, non-human primate to better understand reproductive ecology. We combined life history data with > 13,000 behavioural scans and 298 fecal samples collected longitudinally across multiple years from 33 white-faced capuchin monkey (Cebus imitator) females. We sequenced the V4 region of the 16S rRNA gene and used the DADA2 pipeline to analyze microbial diversity. We used PICRUSt2 to assess putative functions. RESULTS Reproductive state explained some variation in activity, but overall resting behaviours were relatively stable across pregnancy and lactation. Foraging was less frequent among females in the early stage of nursing compared to the cycling stage, though otherwise remained at comparable levels. Maximum temperature was a strong, significantly positive predictor of resting, while social dominance had a small but significantly negative effect on resting. Ecological variables such as available fruit biomass and rainfall had a small but significantly positive effects on measures of foraging time. Gut microbial community structure, including richness, alpha diversity, and beta diversity remained stable across the reproductive cycle. In pairwise comparisons, pregnant females exhibited increased relative abundances of multiple microbial ASVs, suggesting small changes in relation to reproductive state. Reproductive state was not linked to differential abundance of putative metabolic pathways. CONCLUSIONS Previous data suggest that activity budget and the gut microbiome shifts considerably during reproduction. The present study finds that both activity and gut microbial communities are less associated with reproduction compared to other predictors, including ecological contexts. This suggests that behavioural flexibility and gut microbial community plasticity is contrained by ecological factors in this population. These data contribute to a broader understanding of plasticity and stability in response to physiological shifts associated with mammalian reproduction.
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Affiliation(s)
- Shasta E Webb
- Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr NW, Calgary, AB, T2N 1N4, Canada.
- Department of Biological Sciences, University of Notre Dame, Notre Dame, IN, 46556, USA.
| | - Joseph D Orkin
- Département d'anthropologie, Université de Montréal, 3150 Rue Jean-Brillant, Montréal, QC, H3T 1N8, Canada
| | - Rachel E Williamson
- Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr NW, Calgary, AB, T2N 1N4, Canada
| | - Amanda D Melin
- Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr NW, Calgary, AB, T2N 1N4, Canada.
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr NW, Calgary, AB, T2N 4N1, Canada.
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16
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Benítez-Páez A. Editorial: Contribution of the maternal microbiome to offspring health. Front Nutr 2023; 10:1229447. [PMID: 37404860 PMCID: PMC10316016 DOI: 10.3389/fnut.2023.1229447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 06/09/2023] [Indexed: 07/06/2023] Open
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17
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Amaral WZ, Lubach GR, Rendina DN, Phillips GJ, Lyte M, Coe CL. Significant Microbial Changes Are Evident in the Reproductive Tract of Pregnant Rhesus Monkeys at Mid-Gestation but Their Gut Microbiome Does Not Shift until Late Gestation. Microorganisms 2023; 11:1481. [PMID: 37374982 PMCID: PMC10304935 DOI: 10.3390/microorganisms11061481] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Vaginal and rectal specimens were obtained from cycling, pregnant, and nursing rhesus monkeys to assess pregnancy-related changes in the commensal bacteria in their reproductive and intestinal tracts. Using 16S rRNA gene amplicon sequencing, significant differences were found only in the vagina at mid-gestation, not in the hindgut. To verify the apparent stability in gut bacterial composition at mid-gestation, the experiment was repeated with additional monkeys, and similar results were found with both 16S rRNA gene amplicon and metagenomic sequencing. A follow-up study investigated if bacterial changes in the hindgut might occur later in pregnancy. Gravid females were assessed closer to term and compared to nonpregnant females. By late pregnancy, significant differences in bacterial composition, including an increased abundance of 4 species of Lactobacillus and Bifidobacterium adolescentis, were detected, but without a shift in the overall community structure. Progesterone levels were assessed as a possible hormone mediator of bacterial change. The relative abundance of only some taxa (e.g., Bifidobacteriaceae) were specifically associated with progesterone. In summary, pregnancy changes the microbial profiles in monkeys, but the bacterial diversity in their lower reproductive tract is different from women, and the composition of their intestinal symbionts remains stable until late gestation when several Firmicutes become more prominent.
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Affiliation(s)
| | - Gabriele R. Lubach
- Harlow Center for Biological Psychology, University of Wisconsin, Madison, WI 53715, USA; (G.R.L.); (D.N.R.)
| | - Danielle N. Rendina
- Harlow Center for Biological Psychology, University of Wisconsin, Madison, WI 53715, USA; (G.R.L.); (D.N.R.)
- Health and Biosciences, International Flavors & Fragrances (IFF), Wilmington, DE 19803, USA
| | - Gregory J. Phillips
- College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA; (G.J.P.); (M.L.)
| | - Mark Lyte
- College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA; (G.J.P.); (M.L.)
| | - Christopher L. Coe
- Harlow Center for Biological Psychology, University of Wisconsin, Madison, WI 53715, USA; (G.R.L.); (D.N.R.)
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