Stress and mental health symptoms in early pregnancy are associated with the oral microbiome
Background Research has revealed associations between microbes of the gastrointestinal tract and stress, anxiety and depression in pregnant or postpartum women. While these studies suggest a gut-brain-behaviour axis, no studies have examined microbes of the oral cavity in relation to maternal mental...
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| Format: | Article |
| Language: | English |
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BMJ Publishing Group
2024-11-01
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| Series: | BMJ Mental Health |
| Online Access: | https://mentalhealth.bmj.com/content/27/1/e301100.full |
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| author | G Anne Bogat Maria Muzik Amy K Nuttall Ann M Alex Alytia A Levendosky Rebecca C Knickmeyer Joseph S Lonstein |
| author_facet | G Anne Bogat Maria Muzik Amy K Nuttall Ann M Alex Alytia A Levendosky Rebecca C Knickmeyer Joseph S Lonstein |
| author_sort | G Anne Bogat |
| collection | DOAJ |
| description | Background Research has revealed associations between microbes of the gastrointestinal tract and stress, anxiety and depression in pregnant or postpartum women. While these studies suggest a gut-brain-behaviour axis, no studies have examined microbes of the oral cavity in relation to maternal mental health.Objective To explore a potential oral-brain-behaviour axis related to maternal mental health.Methods Microbes were measured in saliva obtained from 224 second-trimester (mean±SD = 17±2 weeks) women oversampled for stress. Oralome data were associated with women’s recent or cumulative pregnancy stress, trait and state anxiety, depression symptoms and post-traumatic stress disorder (PTSD) symptoms. Covariates explored included age, income, alcohol and tobacco use, dental issues and physical health problems.Results Pregnant women in the high trait anxiety or depression symptom groups had higher oral alpha diversity, indicating higher richness of species within samples. Groups with high and low PTSD symptoms differed in beta diversity, reflecting differences in community composition. Linear discriminant analysis showed differently abundant microbes in women with high stress versus low life stress, anxiety, depression, and PTSD, with the affected microbes mostly differing by symptom. Notably, members of phylum Proteobacteria were more abundant in women with high recent life stress and Spirochaetes was more abundant in women with high depression symptoms. Members of phylum Firmicutes were more abundant in the high trait anxiety and high depression groups. Genus Dialister (previously found to be lower in the gut of depressed non-pregnant people) was higher in women experiencing either high trait or state anxiety, or experiencing high depression symptoms, while genus Eikenella was elevated with high trait anxiety, depression or PTSD.Conclusions The oral microbiome is associated with stress and mental health in pregnant women, in ways different from the gut microbiome or what has been found in non-pregnant people.Clinical implications Understanding oral microbiome–mental health relations may reveal future microbial targets to improve maternal psychological well-being. |
| format | Article |
| id | doaj-art-7d7a3ad50a8b47bf8476b6cd5babd18c |
| institution | Kabale University |
| issn | 2755-9734 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Mental Health |
| spelling | doaj-art-7d7a3ad50a8b47bf8476b6cd5babd18c2025-01-01T05:10:11ZengBMJ Publishing GroupBMJ Mental Health2755-97342024-11-0127110.1136/bmjment-2024-301100Stress and mental health symptoms in early pregnancy are associated with the oral microbiomeG Anne Bogat0Maria Muzik1Amy K Nuttall2Ann M Alex3Alytia A Levendosky4Rebecca C Knickmeyer5Joseph S Lonstein6Department of Psychology, Michigan State University, East Lansing, Michigan, USADepartment of Psychiatry and Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USADepartment of Human Development and Family Studies, Michigan State University, East Lansing, Michigan, USAInstitute for Quantitative Health Science & Engineering, Michigan State University, East Lansing, Michigan, USADepartment of Psychology, Michigan State University, East Lansing, Michigan, USAInstitute for Quantitative Health Science & Engineering, Michigan State University, East Lansing, Michigan, USADepartment of Psychology, Michigan State University, East Lansing, Michigan, USABackground Research has revealed associations between microbes of the gastrointestinal tract and stress, anxiety and depression in pregnant or postpartum women. While these studies suggest a gut-brain-behaviour axis, no studies have examined microbes of the oral cavity in relation to maternal mental health.Objective To explore a potential oral-brain-behaviour axis related to maternal mental health.Methods Microbes were measured in saliva obtained from 224 second-trimester (mean±SD = 17±2 weeks) women oversampled for stress. Oralome data were associated with women’s recent or cumulative pregnancy stress, trait and state anxiety, depression symptoms and post-traumatic stress disorder (PTSD) symptoms. Covariates explored included age, income, alcohol and tobacco use, dental issues and physical health problems.Results Pregnant women in the high trait anxiety or depression symptom groups had higher oral alpha diversity, indicating higher richness of species within samples. Groups with high and low PTSD symptoms differed in beta diversity, reflecting differences in community composition. Linear discriminant analysis showed differently abundant microbes in women with high stress versus low life stress, anxiety, depression, and PTSD, with the affected microbes mostly differing by symptom. Notably, members of phylum Proteobacteria were more abundant in women with high recent life stress and Spirochaetes was more abundant in women with high depression symptoms. Members of phylum Firmicutes were more abundant in the high trait anxiety and high depression groups. Genus Dialister (previously found to be lower in the gut of depressed non-pregnant people) was higher in women experiencing either high trait or state anxiety, or experiencing high depression symptoms, while genus Eikenella was elevated with high trait anxiety, depression or PTSD.Conclusions The oral microbiome is associated with stress and mental health in pregnant women, in ways different from the gut microbiome or what has been found in non-pregnant people.Clinical implications Understanding oral microbiome–mental health relations may reveal future microbial targets to improve maternal psychological well-being.https://mentalhealth.bmj.com/content/27/1/e301100.full |
| spellingShingle | G Anne Bogat Maria Muzik Amy K Nuttall Ann M Alex Alytia A Levendosky Rebecca C Knickmeyer Joseph S Lonstein Stress and mental health symptoms in early pregnancy are associated with the oral microbiome BMJ Mental Health |
| title | Stress and mental health symptoms in early pregnancy are associated with the oral microbiome |
| title_full | Stress and mental health symptoms in early pregnancy are associated with the oral microbiome |
| title_fullStr | Stress and mental health symptoms in early pregnancy are associated with the oral microbiome |
| title_full_unstemmed | Stress and mental health symptoms in early pregnancy are associated with the oral microbiome |
| title_short | Stress and mental health symptoms in early pregnancy are associated with the oral microbiome |
| title_sort | stress and mental health symptoms in early pregnancy are associated with the oral microbiome |
| url | https://mentalhealth.bmj.com/content/27/1/e301100.full |
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