Investigating the impact of oral health on pregnancy and offspring outcomes: protocol for the Lifetime Impact of ORal heAlth (LIORA) cohort study

Introduction Oral health is a fundamental component of well-being, and is closely associated with overall health and quality of life. Oral health may also affect the next generation. The children of mothers with poor oral health are likely to also have poor oral health as they go through life. We ai...

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Main Authors: Ting Zhang, Hua Zhang, Ping Ji, Chang Chen, Xin Jin, Richard Saffery, Yinyin Xia, Pamela Leong, Ting-li Han, Mei-Ling Zhao, Feng-Jing Zhang, Wen-Rong Jiang, Xin-Yang Yu, Peter Mei, Hong-Mei Zhang, Boris Novakovic, Murray Thompson, Richard D Cannon
Format: Article
Language:English
Published: BMJ Publishing Group 2022-11-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/12/11/e066204.full
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author Ting Zhang
Hua Zhang
Ping Ji
Chang Chen
Xin Jin
Richard Saffery
Yinyin Xia
Pamela Leong
Ting-li Han
Mei-Ling Zhao
Feng-Jing Zhang
Wen-Rong Jiang
Xin-Yang Yu
Peter Mei
Hong-Mei Zhang
Boris Novakovic
Murray Thompson
Richard D Cannon
author_facet Ting Zhang
Hua Zhang
Ping Ji
Chang Chen
Xin Jin
Richard Saffery
Yinyin Xia
Pamela Leong
Ting-li Han
Mei-Ling Zhao
Feng-Jing Zhang
Wen-Rong Jiang
Xin-Yang Yu
Peter Mei
Hong-Mei Zhang
Boris Novakovic
Murray Thompson
Richard D Cannon
author_sort Ting Zhang
collection DOAJ
description Introduction Oral health is a fundamental component of well-being, and is closely associated with overall health and quality of life. Oral health may also affect the next generation. The children of mothers with poor oral health are likely to also have poor oral health as they go through life. We aim to investigate associations between maternal oral health and general health, pregnancy outcomes, offspring oral health and offspring general health.Methods and analysis The Lifetime Impact of Oral Health study is a prospective, observational cohort study being done at a single centre in Chongqing, China. A total of 1000 pregnant women will be recruited in their first trimester (11–14 weeks gestation). After obtaining informed consent, general and oral health assessments will be undertaken. Maternal lifestyle, demographic data and biospecimens (blood, hair, urine, nail clippings, saliva, dental plaque, buccal, vaginal and anal swabs) will be collected. Pregnancy outcomes will be recorded at the time of delivery. Cord blood and placenta samples will be collected. The offspring will be followed up for general and oral health examinations, neurodevelopmental assessments and biospecimen (dental plaque, saliva, buccal swabs, exfoliated primary dentition, urine, hair, nail clippings) collection until they are 15 years old. Biological samples will undergo comprehensive metabolomic, microbiome and epigenome analyses. Associations between maternal oral health and general health, pregnancy outcomes, offspring oral health and offspring general health will be investigated and the underlying mechanisms explored.Ethics and dissemination This project has been approved by the Research Ethics Committee of the Affiliated Hospital of Stomatology of Chongqing Medical University (CQHS-REC-2021 LSNo.23). Participants will be required to provide informed consent to participate in the study. Dissemination of findings will take the form of publications in peer-reviewed journals and presentations at national and international conferences.Trial registration number ChiCTR2100046898.
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spelling doaj.art-6772c942e5484d93964f9325d6c766492022-12-22T03:45:12ZengBMJ Publishing GroupBMJ Open2044-60552022-11-01121110.1136/bmjopen-2022-066204Investigating the impact of oral health on pregnancy and offspring outcomes: protocol for the Lifetime Impact of ORal heAlth (LIORA) cohort studyTing Zhang0Hua Zhang1Ping Ji2Chang Chen3Xin Jin4Richard Saffery5Yinyin Xia6Pamela Leong7Ting-li Han8Mei-Ling Zhao9Feng-Jing Zhang10Wen-Rong Jiang11Xin-Yang Yu12Peter Mei13Hong-Mei Zhang14Boris Novakovic15Murray Thompson16Richard D Cannon171 Department of Biomedical Engineering, University of Houston, Houston, Texas, USA2 Chongqing Health Center for Women and Children, Chongqing, China1 Clinical Research Institute, Shenzhen-Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, ChinaDepartment of Public Health, Shenzhen Kangning Hospital, Shenzhen, Guangdong, China2 Neurosurgery, Austin Health, Heidelberg, Victoria, Australia15 Cancer and Disease Epigenetics, Murdoch Childrens Research Institute, Parkville, Victoria, Australia2 School of Public Health and Management, Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China4 Cancer, Disease and Developmental Epigenetics, Murdoch Children’s Research Institute, Royal Children’s Hospital, Melbourne, Victoria, Australia9 Liggins Institute, University of Auckland, Auckland, New ZealandStomatological Hospital of Chongqing Medical University, Chongqing, ChinaStomatological Hospital of Chongqing Medical University, Chongqing, ChinaStomatological Hospital of Chongqing Medical University, Chongqing, ChinaDepartment of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, ChinaOral Sciences, University of Otago, Dunedin, New ZealandStomatological Hospital of Chongqing Medical University, Chongqing, ChinaMurdoch Children’s Research Institute, Parkville, Victoria, AustraliaSir John Walsh Research Institute, University of Otago, Dunedin, UKOral Sciences, University of Otago, Dunedin, New ZealandIntroduction Oral health is a fundamental component of well-being, and is closely associated with overall health and quality of life. Oral health may also affect the next generation. The children of mothers with poor oral health are likely to also have poor oral health as they go through life. We aim to investigate associations between maternal oral health and general health, pregnancy outcomes, offspring oral health and offspring general health.Methods and analysis The Lifetime Impact of Oral Health study is a prospective, observational cohort study being done at a single centre in Chongqing, China. A total of 1000 pregnant women will be recruited in their first trimester (11–14 weeks gestation). After obtaining informed consent, general and oral health assessments will be undertaken. Maternal lifestyle, demographic data and biospecimens (blood, hair, urine, nail clippings, saliva, dental plaque, buccal, vaginal and anal swabs) will be collected. Pregnancy outcomes will be recorded at the time of delivery. Cord blood and placenta samples will be collected. The offspring will be followed up for general and oral health examinations, neurodevelopmental assessments and biospecimen (dental plaque, saliva, buccal swabs, exfoliated primary dentition, urine, hair, nail clippings) collection until they are 15 years old. Biological samples will undergo comprehensive metabolomic, microbiome and epigenome analyses. Associations between maternal oral health and general health, pregnancy outcomes, offspring oral health and offspring general health will be investigated and the underlying mechanisms explored.Ethics and dissemination This project has been approved by the Research Ethics Committee of the Affiliated Hospital of Stomatology of Chongqing Medical University (CQHS-REC-2021 LSNo.23). Participants will be required to provide informed consent to participate in the study. Dissemination of findings will take the form of publications in peer-reviewed journals and presentations at national and international conferences.Trial registration number ChiCTR2100046898.https://bmjopen.bmj.com/content/12/11/e066204.full
spellingShingle Ting Zhang
Hua Zhang
Ping Ji
Chang Chen
Xin Jin
Richard Saffery
Yinyin Xia
Pamela Leong
Ting-li Han
Mei-Ling Zhao
Feng-Jing Zhang
Wen-Rong Jiang
Xin-Yang Yu
Peter Mei
Hong-Mei Zhang
Boris Novakovic
Murray Thompson
Richard D Cannon
Investigating the impact of oral health on pregnancy and offspring outcomes: protocol for the Lifetime Impact of ORal heAlth (LIORA) cohort study
BMJ Open
title Investigating the impact of oral health on pregnancy and offspring outcomes: protocol for the Lifetime Impact of ORal heAlth (LIORA) cohort study
title_full Investigating the impact of oral health on pregnancy and offspring outcomes: protocol for the Lifetime Impact of ORal heAlth (LIORA) cohort study
title_fullStr Investigating the impact of oral health on pregnancy and offspring outcomes: protocol for the Lifetime Impact of ORal heAlth (LIORA) cohort study
title_full_unstemmed Investigating the impact of oral health on pregnancy and offspring outcomes: protocol for the Lifetime Impact of ORal heAlth (LIORA) cohort study
title_short Investigating the impact of oral health on pregnancy and offspring outcomes: protocol for the Lifetime Impact of ORal heAlth (LIORA) cohort study
title_sort investigating the impact of oral health on pregnancy and offspring outcomes protocol for the lifetime impact of oral health liora cohort study
url https://bmjopen.bmj.com/content/12/11/e066204.full
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