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Bond JC, Wise LA, Fox MP, Garcia RI, Murray EJ, White KO, Rothman KJ, Hatch EE, Heaton B. Preconception Periodontitis and Risk of Spontaneous Abortion in a Prospective Cohort Study. Am J Epidemiol 2023; 192:1509-1521. [PMID: 37339008 PMCID: PMC10666963 DOI: 10.1093/aje/kwad142] [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: 11/23/2022] [Revised: 05/23/2023] [Accepted: 06/16/2023] [Indexed: 06/22/2023] Open
Abstract
Few studies have evaluated the association between periodontitis and spontaneous abortion (SAB), and all had limitations. We used data from the Pregnancy Study Online (PRESTO), a prospective preconception cohort study of 3,444 pregnancy planners in the United States and Canada (2019-2022), to address this question. Participants provided self-reported data on periodontitis diagnosis, treatment, and symptoms of severity (i.e., loose teeth) via the enrollment questionnaire. SAB (pregnancy loss at <20 weeks' gestation) was assessed via bimonthly follow-up questionnaires. Participants contributed person-time from the date of a positive pregnancy test to the gestational week of SAB, loss to follow-up, or 20 weeks' gestation, whichever came first. We fitted Cox regression models with weeks of gestation as the time scale to estimate adjusted hazard ratios (HRs) and 95% confidence intervals (CIs), and we used inverse probability of treatment weighting to account for differential loss to follow-up. We used probabilistic quantitative bias analysis to estimate the magnitude and direction of the effect of exposure misclassification bias on results. In weighted multivariable models, we saw no appreciable association between preconception periodontitis diagnosis (HR = 0.97, 95% CI: 0.76, 1.23) or treatment (HR = 1.01, 95% CI: 0.79, 1.27) and SAB. A history of loose teeth was positively associated with SAB (HR = 1.38, 95% CI: 0.88, 2.14). Quantitative bias analysis indicated that our findings were biased towards the null but with considerable uncertainty in the bias-adjusted results.
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Affiliation(s)
- Julia C Bond
- Correspondence to Julia C. Bond, Department of Epidemiology, School of Public Health, Boston University, 715 Albany Street, Talbot Building, T3E and T4E, Boston, MA 02118 (e-mail: )
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Hu S, Yu F, Jiang H, Shang W, Miao H, Li S, Zhao J, Xiao H. Periodontal Inflamed Surface Area Is Associated With Increased Gestational Blood Pressure and Uric Acid Levels Among Pregnant Women From Rural North China. Front Cardiovasc Med 2022; 9:830732. [PMID: 35299983 PMCID: PMC8921456 DOI: 10.3389/fcvm.2022.830732] [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: 12/07/2021] [Accepted: 02/07/2022] [Indexed: 12/04/2022] Open
Abstract
Background Periodontal disease has been associated with gestational complications and both conditions have a high prevalence in rural populations from developing regions. A cross-sectional study was carried out to explore the relationship between periodontal inflamed surface area (PISA), blood pressure (BP), and, serum uric acid levels (UA) in a group of rural North Chinese pregnant women in the third trimester of pregnancy. Methods Three hundred and thirty-five rural women aged 20–34 years, with normal body mass index (BMI) were examined in a cross-sectional study during their third trimester of gestation. Exclusion criteria were history of pregnancy complications, multiple pregnancy, smoking habits, diabetes, hypertension or any known infectious disease. Socio-demographic variables, including age and socioeconomic status (SES), systolic blood pressure (SBP) and diastolic blood pressure (DBP) readings, serum UA levels, and PISA values were recorded. A structural equation model was implemented with two constructed latent variables including “Dem” (comprising of age and SES category to represent unobserved demographic variables) and, “BP” (comprising of SBP and DBP to account for measurement error and lack of multiple BP readings). The model accounted for co-variance of BP and UA, and implemented simultaneous regressions for BP and UA as outcomes, upon Dem and PISA values as exogenous variables. Results The median PISA score was 1,081.7 (IQR = 835.01), reflecting high levels of periodontal inflammation in the sample. SEM showed a significant association of PISA with BP (estimate = 0.011, 95% CI = 0.009–0.012 p < 0.001) and UA (estimate = 0.001, 95% CI = 0.001–0.001, p < 0.001). Conclusion Higher PISA values were significantly associated with higher blood pressure and uric acid levels among rural pregnant women in a cross-sectional sample from a center in North China after accounting for a latent demographic construct derived from age and SES.
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Affiliation(s)
- Shaonan Hu
- Innovation Center Computer Assisted Surgery, Leipzig University, Leipzig, Germany
| | - Feifan Yu
- School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States
| | - Hong Jiang
- Department of Obstetrics and Gynecology, Sichuan Academy of Medical Science, Sichuan Provincial People's Hospital, Chengdu, China
| | - Wei Shang
- Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Hui Miao
- Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
| | - Simin Li
- Stomatological Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Simin Li
| | - Jianjiang Zhao
- Shenzhen Stomatological Hospital, Southern Medical University, Shenzhen, China
- Jianjiang Zhao
| | - Hui Xiao
- Stomatological Hospital, Southern Medical University, Guangzhou, China
- Hui Xiao
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Favero V, Bacci C, Volpato A, Bandiera M, Favero L, Zanette G. Pregnancy and Dentistry: A Literature Review on Risk Management during Dental Surgical Procedures. Dent J (Basel) 2021; 9:dj9040046. [PMID: 33921608 PMCID: PMC8072957 DOI: 10.3390/dj9040046] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/02/2021] [Accepted: 04/15/2021] [Indexed: 11/16/2022] Open
Abstract
Background: Pregnancy is a unique moment in a woman’s life, accompanied with several physiologic changes that have an impact on oral health. Aim of the study: The purpose of the present study was to conduct a critical review of published literature regarding pregnancy and dentistry, the most frequent oral diseases that are encountered during pregnancy, their correlation to adverse pregnancy events, and safe dental treatments that can be performed during pregnancy. Methods: A Medline/COCHRANE search was carried using specific keywords and MeSH terms, combined with the boolean operators “OR” and “AND”. Results: The search led to 146 publications including guidelines, meta-analyses, systematic and non-systematic reviews, published between 2000 and 2021. Discussion and conclusions: Due to the increased inflammatory and immune body response that characterizes pregnancy, periodontal conditions are often aggravated during pregnancy and periodontal disease encountered frequently in pregnant patients. There are conflicting study results in the literature regarding the association between periodontitis and adverse pregnancy outcomes. Periodontal treatment did not show a significant reduction in the adverse outcomes. Many dentists, often due to lack of information, are reluctant to provide dental treatment to pregnant women. However, preventive and restorative dental treatment is safe during pregnancy. Diagnostic radiographs may be performed after the first trimester if absolutely necessary. Analgesics (such as paracetamol) and anesthetics (such as lidocaine) are also considered safe. In case of infection, antibacterial drugs such as amoxicillin, ampicillin, and some cephalosporines and macrolides can also be prescribed. Organogenesis takes place in the first trimester, the time during which the fetus is susceptible to severe malformations (teratogenesis). The ideal time to perform dental treatment is the second trimester (week 17 to 28). However, acute pain or infections make the intervention of the dentist absolutely necessary and emergency treatment can be performed during the whole pregnancy period.
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Affiliation(s)
- Vittorio Favero
- Unit of Maxillofacial Surgery and Dentistry, University of Verona, 37129 Verona, Italy;
| | - Christian Bacci
- Dental Clinic, Department of Neuroscience, University of Padua, 35129 Padua, Italy; (C.B.); (M.B.); (L.F.); (G.Z.)
| | - Andrea Volpato
- Dental Clinic, Department of Neuroscience, University of Padua, 35129 Padua, Italy; (C.B.); (M.B.); (L.F.); (G.Z.)
- Correspondence: or
| | - Michela Bandiera
- Dental Clinic, Department of Neuroscience, University of Padua, 35129 Padua, Italy; (C.B.); (M.B.); (L.F.); (G.Z.)
| | - Lorenzo Favero
- Dental Clinic, Department of Neuroscience, University of Padua, 35129 Padua, Italy; (C.B.); (M.B.); (L.F.); (G.Z.)
| | - Gastone Zanette
- Dental Clinic, Department of Neuroscience, University of Padua, 35129 Padua, Italy; (C.B.); (M.B.); (L.F.); (G.Z.)
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Rodrigues Amorim Adegboye A, Dias Santana D, Teixeira dos Santos PP, Guedes Cocate P, Benaim C, Trindade de Castro MB, Maia Schlüssel M, Kac G, Lilienthal Heitmann B. Exploratory Efficacy of Calcium-Vitamin D Milk Fortification and Periodontal Therapy on Maternal Oral Health and Metabolic and Inflammatory Profile. Nutrients 2021; 13:783. [PMID: 33673568 PMCID: PMC7997467 DOI: 10.3390/nu13030783] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/21/2021] [Accepted: 02/24/2021] [Indexed: 12/16/2022] Open
Abstract
In this 2 × 2 factorial, outcome-assessor blinded, feasibility randomised trial we explored the effect of a non-pharmaceutical multi-component intervention on periodontal health and metabolic and inflammatory profiles among pregnant women with periodontitis receiving prenatal care in a Brazilian public health centre. 69 pregnant women (gestational age ≤20 weeks, T0) were randomly allocated into four groups: (1) fortified sachet (vitamin D and calcium) and powdered milk plus periodontal therapy during pregnancy (early PT) (n = 17); (2) placebo sachet and powdered milk plus early PT (n = 15); (3) fortified sachet and powdered milk plus late PT (after delivery) (n = 19); (4) placebo sachet and powdered milk plus late PT (n = 18). Third trimester (T1) and 6-8 weeks postpartum (T2) exploratory outcomes included periodontal health (% sites with bleeding on probing (BOP)), glucose, insulin, C-Reactive Protein, serum calcium and vitamin D. The mean BOP was significantly reduced in the early PT groups, while BOP worsened in the late PT groups. No significant effect of fortification on BOP was observed. Changes in glucose levels and variation on birthweight did not differ among groups This feasibility trial provides preliminary evidence for estimating the minimum clinically important differences for selected maternal outcomes. A large-scale trial to evaluate the interventions' clinical benefits and cost-effectiveness is warranted.
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Affiliation(s)
- Amanda Rodrigues Amorim Adegboye
- Faculty of Health and Life Sciences, School of Nursing, Midwifery and Health, Coventry University, Priory Street, Coventry CV1 5FB, UK
| | - Danilo Dias Santana
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (D.D.S.); (P.P.T.d.S.); (C.B.); (M.B.T.d.C.); (G.K.)
| | - Pedro Paulo Teixeira dos Santos
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (D.D.S.); (P.P.T.d.S.); (C.B.); (M.B.T.d.C.); (G.K.)
| | - Paula Guedes Cocate
- Department of Bioscience and Physical Activity, School of Physical Education and Sports, Federal University of Rio de Janeiro, Rio de Janeiro 21941-599, Brazil;
| | - Camila Benaim
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (D.D.S.); (P.P.T.d.S.); (C.B.); (M.B.T.d.C.); (G.K.)
| | - Maria Beatriz Trindade de Castro
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (D.D.S.); (P.P.T.d.S.); (C.B.); (M.B.T.d.C.); (G.K.)
| | - Michael Maia Schlüssel
- The EQUATOR Network—UK Centre, Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Old Road, Oxford OX3 7LD, UK;
| | - Gilberto Kac
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (D.D.S.); (P.P.T.d.S.); (C.B.); (M.B.T.d.C.); (G.K.)
| | - Berit Lilienthal Heitmann
- Research Unit for Dietary Studies at the Parker Institute, Bispebjerg and Frederiksberg Hospital, The Capital Region, 2000 Frederiksberg, Denmark;
- Section for General Practice, Institute of Public Health, Copenhagen University, 1014 Copenhagen, Denmark
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Erchick DJ, Agrawal NK, Khatry SK, Katz J, LeClerq SC, Reynolds MA, Mullany LC. Adherence to and acceptability of three alcohol-free, antiseptic oral rinses: A community-based pilot randomized controlled trial among pregnant women in rural Nepal. Community Dent Oral Epidemiol 2020; 48:501-512. [PMID: 33070354 PMCID: PMC7689705 DOI: 10.1111/cdoe.12562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 05/28/2020] [Accepted: 06/18/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Antiseptic oral rinses have been evaluated as interventions to reduce the risk of adverse pregnancy outcomes associated with periodontal disease in pregnant women. Oral rinse use is not common in Nepal or other countries in South Asia, where the prevalence of adverse pregnancy outcomes is high. Understanding whether pregnant women in rural communities in this region would incorporate rinse use into their daily teeth cleaning routine is an important prerequisite to future research on this topic in South Asia. METHODS We conducted a community-based pilot randomized controlled trial of three alcohol-free, antiseptic oral rinses among pregnant women <22 weeks pregnant in rural Nepal with the aim of assessing rinse acceptability, adherence, and effect on clinical periodontal measures. At baseline, participants underwent a clinical periodontal examination, and then were classified as healthy or having at least mild gingivitis (≥1 site with probing depth (PD) 3 mm and bleeding on probing (BOP) or ≥4 mm (PD)). Participants were stratified by periodontal status and randomized within each exposure category to chlorhexidine (CHX) (0.12%), cetylpyridinium chloride (CPC) (0.05%), salt and water (NaCl), or control (no rinse). Rinse participants were followed weekly for 12 weeks, and all participants underwent a second periodontal examination and answered a questionnaire. RESULTS Pregnant women in the rural Terai region of Nepal showed high adherence to (mean weekly rinse use: 185 mL (standard deviation: 66 mL)) a recommended 210 mL and acceptability of all three rinses. Participants reported greater frequency of tooth brushing with toothpaste and improvements in other recommended oral hygiene behaviours. CHX significantly reduced rates of gingivitis (defined as a participant with BOP ≥ 10% of sites) and the extent of BOP (gingivitis at the end of follow-up for CHX vs control: RR 0.37, 95% CI: 0.16, 0.84). CPC and NaCl rinse groups had rates of gingivitis and extent of BOP similar to the control group (gingivitis at the end of follow-up for CPC: RR 0.81, 95% CI: 0.47, 1.38; NaCl: RR 0.92, 95% CI: 0.55, 1.56). CONCLUSIONS Adherence to and acceptability of three alcohol-free, antiseptic oral rinses were high among pregnant women in rural Nepal. Among participants with mild gingivitis at baseline, CHX rinse was most effective at reducing signs of disease compared to the control group. Oral rinse should be considered as a supplement to current oral self-care routines for pregnant women in settings where rinse use is uncommon and access to oral health services is limited.
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Affiliation(s)
- Daniel J. Erchick
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
| | - Nitin K. Agrawal
- Department of DentistryInstitute of MedicineTribhuhvan UniversityKathmanduNepal
| | - Subarna K. Khatry
- Nepal Nutrition Intervention Project – Sarlahi (NNIPS)KathmanduNepal
| | - Joanne Katz
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
| | - Steven C. LeClerq
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
- Nepal Nutrition Intervention Project – Sarlahi (NNIPS)KathmanduNepal
| | - Mark A. Reynolds
- Department of Advanced Oral Sciences and TherapeuticsUniversity of Maryland School of DentistryBaltimoreMDUSA
| | - Luke C. Mullany
- Department of International HealthJohns Hopkins Bloomberg School of Public HealthBaltimoreMDUSA
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Vitamin D and Calcium Milk Fortification in Pregnant Women with Periodontitis: A Feasibility Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17218023. [PMID: 33143369 PMCID: PMC7662458 DOI: 10.3390/ijerph17218023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 12/20/2022]
Abstract
This study aims to assess the acceptability, adherence, and retention of a feasibility trial on milk fortification with calcium and vitamin D (Ca+VitD) and periodontal therapy (PT) among low income Brazilian pregnant women with periodontitis (IMPROVE trial). This 2 × 2 factorial feasibility trial used a mixed-methods evaluation. In total, 69 pregnant women were randomly allocated to four groups: 1. fortified sachet with Ca+VitD and milk plus early PT (throughout gestation); 2. placebo and milk plus early PT; 3. fortified sachet with Ca+VitD and milk plus late PT after childbirth; 4. placebo and milk plus late PT. Data were collected via questionnaires, field notes, participant flow logs, treatment diary, and focal group discussions. Quantitative and qualitative data were analysed using appropriate descriptive statistics and content analysis, respectively. Eligibility rate (12%) was below the target of 15%, but participation (76.1%) and recruitment rate (2 women/week) exceeded the targets. Retention rate (78.6%) was slightly below the target (80%). Adherence to the PT was significantly higher in the early treatment groups (98.8%) compared to the late treatment groups (29%). All women accepted the random allocation, and baseline groups were balanced. There was no report of adverse events. This multi-component intervention is acceptable, well-tolerated, and feasible among low-risk pregnant women in Brazil.
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Erchick DJ, Khatry SK, Agrawal NK, Katz J, LeClerq SC, Rai B, Reynolds MA, Mullany LC. Risk of preterm birth associated with maternal gingival inflammation and oral hygiene behaviours in rural Nepal: a community-based, prospective cohort study. BMJ Open 2020; 10:e036515. [PMID: 32819989 PMCID: PMC7443267 DOI: 10.1136/bmjopen-2019-036515] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 07/04/2020] [Accepted: 07/06/2020] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVES Observational studies have identified associations between periodontitis and adverse pregnancy outcomes, but randomised controlled trials evaluating the efficacy of periodontal therapy have yielded inconsistent results. Few studies have explored relationships between gingival inflammation and these outcomes or been conducted in rural, low-income communities, where confounding risk factors differ from other settings. METHODS We conducted a community-based, prospective cohort study with the aim of estimating associations between the extent of gingival inflammation in pregnant women and incidence of preterm birth in rural Nepal. Our primary exposure was gingival inflammation, defined as bleeding on probing (BOP) ≥10%, stratified by BOP <30% and BOP ≥30%. A secondary exposure, mild periodontitis, was defined as ≥2 interproximal sites with probing depth (PD) ≥4 mm (different teeth) or one site with PD ≥5 mm. Our primary outcome was preterm birth (<37 weeks gestation). We used Poisson regression to model this relationship, adjusting for potential confounders. RESULTS Of 1394 participants, 554 (39.7%) had gingival inflammation, 54 (3.9%) mild periodontitis and 197 (14.1%) delivered preterm. In the adjusted regression model, increasing extent of gingival inflammation was associated with a non-significant increase in risk of preterm birth (BOP ≥30% vs no BOP: adjusted relative risk (aRR) 1.37, 95% CI: 0.81 to 2.32). A secondary analysis, stratifying participants by when in pregnancy their oral health status was assessed, showed an association between gingival inflammation and preterm birth among women examined in their first trimester (BOP ≥30% vs no BOP: aRR 2.57, 95% CI: 1.11 to 5.95), but not later in pregnancy (BOP ≥30% vs no BOP: aRR 1.05, 95% CI: 0.52 to 2.11). CONCLUSIONS Gingival inflammation in women examined early in pregnancy and poor oral hygiene behaviours were risk factors for preterm birth. Future studies should evaluate community-based oral health interventions that specifically target gingival inflammation, delivered early in or before pregnancy, on preterm birth. TRIAL REGISTRATION NUMBER Nepal Oil Massage Study, NCT01177111.
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Affiliation(s)
- Daniel J Erchick
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Subarna K Khatry
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - Nitin K Agrawal
- Department of Dentistry, Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
| | - Joanne Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Steven C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - Bhola Rai
- Nepal Nutrition Intervention Project - Sarlahi, Kathmandu, Nepal
| | - Mark A Reynolds
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, Maryland, USA
| | - Luke C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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Rodrigues Amorim Adegboye A, Cocate PG, Benaim C, da Veiga Soares Carvalho MC, Schlüssel MM, de Castro MBT, Kac G, Heitmann BL. Recruitment of low-income pregnant women into a dietary and dental care intervention: lessons from a feasibility trial. Trials 2020; 21:244. [PMID: 32138765 PMCID: PMC7057473 DOI: 10.1186/s13063-020-4142-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 02/05/2020] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND There are difficulties in carrying out research in low-income urban communities, but the methodological challenges and suggestions on how to deal with them are often undocumented. The aims of this study are to describe the challenges of recruiting and enrolling low-income pregnant women with periodontitis to a clinical trial on vitamin D/calcium milk fortification and periodontal therapy and also to describe the patient-, study protocol- and setting-related factors related to women's ineligibility and refusal to participate in the study. METHODS A mixed-method sequential exploratory design was applied. Qualitative and quantitative data on recruitment to a 2 × 2 factorial feasibility clinical trial were used. Eighteen women attending the health centre in a low-income area in Duque de Caxias (Rio de Janeiro, Brazil) took part in focus group discussions, and the data were thematically analysed. Quantitative data were analysed using appropriate descriptive statistics, including absolute and relative frequencies. RESULTS Of all referrals (767), 548 (78.5%) did not meet the initial eligibility criteria. The main reason for exclusion (58%) was advanced gestational age (> 20 weeks) at first prenatal appointment. In the periodontal examination (dental screen), the main reason for exclusion was the presence of extensive caries (64 out of 127 exclusions). Non-participation of those eligible after the periodontal examination was approximately 24% (22 out 92 eligible women) and predominantly associated with patient-related barriers (e.g. transportation barriers, family obligations, patients being unresponsive to phone calls and disconnected telephones). The study recruited 70 women with periodontitis in 53 weeks and did not reach the benchmark of 120 women in 36 weeks (58.3% of the original target). Recruitment was severely hindered by health centre closures due to general strikes. The recruitment yields were 9.1% (70/767) of all women contacted at first prenatal visit and 76.1% (70/92) of those screened eligible and enrolled in the trial. Women did not report concerns regarding random allocation and considered fortified milk as a healthful and safe food for pregnant women. Some women reported that financial constraints (e.g. transportation costs) could hinder participation in the study. CONCLUSION Engagement between the research team and health centre staff (e.g. nurses) facilitated referral and recruitment, yet some pregnant women failed to participate in the study largely due to significant patient-related sociodemographic barriers and setting-related factors. Our data illustrate the complexity of overcoming recruitment and enrolment challenges for clinical trials in resource-limited settings. TRIAL REGISTRATION ClinicalTrials.gov, NCT03148483. Registered on 11 May 2017.
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Affiliation(s)
- Amanda Rodrigues Amorim Adegboye
- Faculty of Education, Health and Human Sciences, School of Human Sciences, University of Greenwich, Park Row, London, SE10 9LS, UK.
| | - Paula G Cocate
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
- Department of Physical Activity Biosciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Camila Benaim
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
| | | | - Michael M Schlüssel
- Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Maria Beatriz T de Castro
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
| | - Gilberto Kac
- Nutritional Epidemiology Observatory, Department of Social and Applied Nutrition, Institute of Nutrition Josué de Castro, Rio de Janeiro Federal University, Rio de Janeiro, Brazil
| | - Berit L Heitmann
- Research Unit for Dietary Studies at the Parker Institute, Bispebjerg and Frederiksberg Hospital, Copenhagen, The Capital Region, Denmark
- Section for general Practice, Institute of Public Health, Copenhagen, Denmark
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Zhao B, Xiong Y, Zhang Y, Jia L, Zhang W, Xu X. Rutin promotes osteogenic differentiation of periodontal ligament stem cells through the GPR30-mediated PI3K/AKT/mTOR signaling pathway. Exp Biol Med (Maywood) 2020; 245:552-561. [PMID: 32036685 DOI: 10.1177/1535370220903463] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Rutin is one of the flavonoids found in fruits and vegetables. Recent reports have revealed that rutin is a major player in proliferation and bone development. However, data on how rutin regulates the proliferation of periodontal ligament stem cells (PDLSCs), as well as the differentiation of osteogenic cells are scanty. Here, our findings showed that rutin enhanced PDLSCs proliferation, increased ALP activity, and matrix mineralization. Moreover, rutin significantly promoted the expression of osteogenic genes and elevated phosphorylated AKT and mTOR. Treatment with LY294002 reversed these effects by inhibiting PI3K. We also found that the expression levels of GPR30 were increased by rutin. Interestingly, this upregulation was not altered after the addition of LY294002. In addition, G15, a selective antagonist of GPR30, could reduce the beneficial effects induced by rutin and interfere with the modulation of PI3K/AKT/mTOR signal transduction. Collectively, our findings revealed that rutin increased proliferation and osteogenic differentiation of PDLSCs through GPR30-mediated PI3K/AKT/mTOR signal transduction. Therefore, it could be deduced that rutin as a certain flavonoid possesses therapeutic value for periodontal bone regeneration and tissue engineering. Impact statement In our study, the effects and mechanisms of rutin on the osteogenic differentiation and proliferation of PDLSCs were investigated. Our findings might provide basic knowledge and guidance to understand and use rutin in the bioengineering of the periodontal tissues and regeneration of bones. The following is a short description of the main findings: rutin promotes the osteogenic differentiation and proliferation of PDLSCs; PI3K/AKT/mTOR signal pathway mediates the effects of rutin on PDLSCs; rutin activates PI3K/AKT/mTOR signal pathway via GPR30.
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Affiliation(s)
- Bin Zhao
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China
| | - Yixuan Xiong
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China
| | - Yunpeng Zhang
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China.,Department of Oral Implantology, the Affiliated Stomatology Hospital of Kunming Medical University, Kunming 100191, P.R. China
| | - Linglu Jia
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China
| | - Wenjing Zhang
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China
| | - Xin Xu
- School of Stomatology, Shandong University, Jinan 250012, P.R. China.,Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, P.R. China
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10
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Mayberry ME, Gonik B, Trombly RM. Perinatal Oral Health: A Novel Collaborative Initiative to Improve Access, Attitudes, Comfort Level, and Knowledge of Pregnant Women and Dental Providers. AJP Rep 2020; 10:e54-e61. [PMID: 32140293 PMCID: PMC7056404 DOI: 10.1055/s-0040-1702927] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 11/15/2019] [Indexed: 11/23/2022] Open
Abstract
Objectives The objectives of this program were to increase access to dental care among pregnant women and to improve dental students' exposure, comfort level, and knowledge of the potential impact of poor oral health on pregnancy outcomes. Study Design Through collaborative efforts of a School of Dentistry and a School of Medicine, the Oral Health Pregnancy Day Initiative (OHPDI) was developed. Dental students were educated on the impact poor oral health may have on pregnancy outcomes and the importance of access to care. Pregnant women received perinatal oral health education and needed dental care. Results Thirty-four pregnant women presented for the OHPDI. Thirty-nine dental students participated. Eighty-five percent of students reported they learned how poor oral health may have a negative impact on pregnancy and birth outcomes; 79% agreed as a result of the event they were more likely to treat pregnant women. Ninety-four percent of pregnant women reported not having a dentist and 100% received perinatal oral health education and needed dental care. Eighty-eight pregnant women were seen subsequent to the OHPDI. Conclusion This initiative resulted in increased students' knowledge, exposure, and comfort level to treating pregnant women and pregnant women received needed oral health care education and dental treatment.
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Affiliation(s)
- Melanie E Mayberry
- Division of Practice Essentials and Interprofessional Education, University of Detroit Mercy School of Dentistry, Detroit, Michigan
| | - Bernard Gonik
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Robert M Trombly
- A. T. Still University Arizona School of Dentistry & Oral Health, Mesa, Arizona
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11
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Fischer LA, Demerath E, Bittner-Eddy P, Costalonga M. Placental colonization with periodontal pathogens: the potential missing link. Am J Obstet Gynecol 2019; 221:383-392.e3. [PMID: 31051120 DOI: 10.1016/j.ajog.2019.04.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 04/12/2019] [Accepted: 04/24/2019] [Indexed: 12/20/2022]
Abstract
Observational studies demonstrate that women with severe periodontitis have a higher risk of adverse pregnancy outcomes like preterm birth and low birthweight. Standard treatment for periodontitis in the form of scaling and root planing during the second trimester failed to reduce the risk of preterm or low birthweight. It is premature to dismiss the association between periodontitis and adverse pregnancy outcomes because one explanation for the failure of scaling and root planing to reduce the risk of adverse pregnancy outcomes is that periodontal pathogens spread to the placental tissue prior to periodontal treatment. In the placenta, orally derived organisms could cause direct tissue damage or mediate a maternal immune response that impairs the growth of the developing fetus. Sequencing studies demonstrate the presence of organisms derived from the oral microbiome in the placenta, but DNA-based sequencing studies should not be the only technique to evaluate the placental microbiome because they may not detect important shifts in the metabolic capability of the microbiome. In humans, polymerase chain reaction and histology have detected periodontal pathogens in placental tissue in association with multiple adverse pregnancy outcomes. We conclude that both placental and oral microbiomes may play a role in periodontitis-associated adverse pregnancy outcomes. However, the measure to determine the association between periodontal pathogens in the placenta and adverse pregnancy outcomes should be the amount and prevalence, not the mere presence of such microorganisms. Placental colonization with periodontal pathogens thus potentially represents the missing link between periodontitis and adverse pregnancy outcomes.
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12
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Fetal Weight Outcomes in C57BL/6J and C57BL/6NCrl Mice after Oral Colonization with Porphyromonas gingivalis. Infect Immun 2019; 87:IAI.00280-19. [PMID: 31331955 DOI: 10.1128/iai.00280-19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 07/13/2019] [Indexed: 12/15/2022] Open
Abstract
Porphyromonas gingivalis is considered a keystone pathogen that contributes to the initiation and progression of periodontitis in humans. P. gingivalis has also been detected in human placentas associated with adverse pregnancy outcomes. The spread of P. gingivalis from the oral cavity to the reproductive tract thus represents a potential mechanism whereby periodontitis can lead to adverse pregnancy outcomes. In a murine model of pregnancy and oral infection with P. gingivalis, C57BL/6J mice developed low fetal weight, whereas C57BL/6NCrl mice did not. Although C57BL/6NCrl mice harbor segmented filamentous bacteria that drive a Th17 response, fetal weight was independent of frequency of Th17 or Th1 in either substrain. Low fetal weight was instead correlated with increasing amounts of P. gingivalis DNA in the placentas of the C57BL/6J dams. In contrast, fetal weight in C57BL/6NCrl mice was independent of P. gingivalis in the placenta. Differences in genetics or microbiome that influence the ability of P. gingivalis to colonize the placenta may drive differential fetal weight outcomes between C57BL/6J and C57BL/6NCrl mice and, potentially, between diverse human populations.
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13
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Antony KM, Kazembe PN, Pace RM, Levison J, Mlotha-Namarika J, Phiri H, Chiudzu G, Harris RA, Aagaard J, Twyman N, Ramin SM, Raine SP, Belfort MA, Aagaard KM. Population-Based Estimation of Dental Caries and Periodontal Disease Rates of Gravid and Recently Postpartum Women in Lilongwe, Malawi. AJP Rep 2019; 9:e268-e274. [PMID: 31435488 PMCID: PMC6702028 DOI: 10.1055/s-0039-1695003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 06/15/2019] [Indexed: 11/29/2022] Open
Abstract
Objectives The objective of this study was to determine the rate of dental caries and periodontal disease among gravid and recently postpartum women at five delivery centers within and surrounding Lilongwe, Malawi. Study Design We partnered with obstetric specialists, community health workers, and dentists to perform dental history interviews and dental examinations during the study period from December 2012 to May 2014. Dental examinations were performed according to World Health Organization standards to assess periodontal and oral health status. Results Among the 387 gravid and recently postpartum women, the rate of dental caries was 69.3% and the rate of composite dental disease (caries and periodontal disease) was 76.7%. The majority (69.5%) of women examined had a decayed-missing-filled (DMF) index greater than or equal to one; the average DMF Index was 2.48. The majority of women had never seen a dentist (62.8%). However, most did perform oral hygiene, two or more times per day (90.2%); most women reported brushing with toothpaste (88.1%). Conclusion When assessing this population for dental caries and periodontal disease, the rate of dental disease was high. Therefore, this may be an ideal setting to test for impactful interventions aimed at reducing caries and periodontal disease.
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Affiliation(s)
- Kathleen M Antony
- Department of Obstetrics and Gynecology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas.,Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, One Baylor College of Medicine, Houston, Texas.,Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of Wisconsin-Madison, Madison, Wisconsin
| | - Peter N Kazembe
- Department of Pediatrics, Baylor College of Medicine Children's Clinical Center of Excellence, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Ryan M Pace
- Department of Obstetrics and Gynecology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas
| | - Judy Levison
- Department of Obstetrics and Gynecology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas
| | | | - Henry Phiri
- Department of Obstetrics and Gynecology, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Grace Chiudzu
- Department of Obstetrics and Gynecology, Kamuzu Central Hospital, Lilongwe, Malawi
| | - R Alan Harris
- Department of Obstetrics and Gynecology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas
| | | | - Nicholas Twyman
- Department of Obstetrics and Gynecology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas
| | - Susan M Ramin
- Department of Obstetrics and Gynecology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas.,Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, One Baylor College of Medicine, Houston, Texas.,American Board of Obstetrics and Gynecology, 2915 Vine Street, Dallas, Texas
| | - Susan P Raine
- Department of Obstetrics and Gynecology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas
| | - Michael A Belfort
- Department of Obstetrics and Gynecology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas.,Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, One Baylor College of Medicine, Houston, Texas
| | - Kjersti M Aagaard
- Department of Obstetrics and Gynecology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas.,Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, One Baylor College of Medicine, Houston, Texas
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14
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Calcium and vitamin D supplementation and/or periodontal therapy in the treatment of periodontitis among Brazilian pregnant women: protocol of a feasibility randomised controlled trial (the IMPROVE trial). Pilot Feasibility Stud 2019; 5:38. [PMID: 30873290 PMCID: PMC6402123 DOI: 10.1186/s40814-019-0417-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 02/13/2019] [Indexed: 12/16/2022] Open
Abstract
Background Periodontitis is a common oral inflammation, which is a risk factor for adverse pregnancy outcomes. Intakes of vitamin D and calcium are inversely associated with occurrence and progression of periodontitis. This study aims to assess the feasibility of a multi-component intervention, including provision of milk powder supplemented with calcium and vitamin D and periodontal therapy (PT), for improving maternal periodontal health and metabolic and inflammatory profiles of low-income Brazilian pregnant women with periodontitis. Methods The IMPROVE trial is a feasibility randomised controlled trial (RCT) with a 2 × 2 factorial design with a parallel process evaluation. Pregnant women with periodontitis, aged 18–40 years and with < 20 gestational weeks (n = 120) were recruited and randomly allocated into four groups: (1) fortified sachet (vitamin D and calcium) and powdered milk plus PT during pregnancy, (2) placebo sachet and powdered milk plus PT during pregnancy, (3) fortified sachet (vitamin D and calcium) and powdered milk plus PT after delivery and (4) placebo sachet and powdered milk plus PT after delivery. Dentists and participants are blinded to fortification. Acceptability of study design, recruitment strategy, random allocation, data collection procedures, recruitment rate, adherence and attrition rate will be evaluated. Data on serum levels of vitamin D, calcium and inflammatory biomarkers; clinical periodontal measurements; anthropometric measurements; and socio-demographic questionnaires are collected at baseline, third trimester and 6–8 weeks postpartum. Qualitative data are collected using focus group, for analysis of favourable factors and barriers related to study adherence. Discussion Oral health and mineral/vitamin supplementation are much overlooked in the public prenatal assistance in Brazil and of scarcity of clinical trials addressing these issues in low and middle-income countries,. To fill this gap the present study was designed to assess the feasibility of a RCT on acceptability of a multi-component intervention combining conventional periodontal treatment and consumption of milk fortified with calcium-vitamin D for improving periodontal conditions and maternal metabolic and inflammation status, among Brazilian low-income pregnant women with periodontitis. Thus, we hope that this relatively low-cost and safe multicomponent intervention can help reduce inflammation, improve maternal periodontal health and metabolic profile and consequently prevent negative gestational outcomes. Trial registration NCT, NCT03148483. Registered on May 11, 2017.
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15
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Konishi H, Urabe S, Miyoshi H, Teraoka Y, Maki T, Furusho H, Miyauchi M, Takata T, Kudo Y, Kajioka S. Fetal Membrane Inflammation Induces Preterm Birth Via Toll-Like Receptor 2 in Mice With Chronic Gingivitis. Reprod Sci 2018; 26:869-878. [PMID: 30223727 DOI: 10.1177/1933719118792097] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Inflammation is associated with preterm birth. We previously described a mouse model of chronic inflammation-induced preterm birth after dental Porphyromonas gingivalis infection. The aim of this study was to employ this model system to investigate the mechanisms through which enhanced uterine contractility induces preterm birth. Messenger RNA (mRNA) encoding contraction-associated proteins, such as oxytocin receptors, was measured at various gestational time points by real-time polymerase chain reaction (PCR). Spontaneous and oxytocin-induced uterine contractile activity at gestational day 18 was assessed using a tissue organ bath. The expression levels of Toll-like receptor 2 (TLR2), TLR4, cyclooxygenase (COX)-2, nuclear factor-kappa B (NF-κB) p65, and p38 mitogen-activated protein kinase (MAPK) on gestational day 18 were also determined by real-time PCR or Western blotting. Messenger RNA encoding contraction-associated proteins was increased at gestational day 18, and the spontaneous contractile activity (1.6-fold greater area under the contraction curve) and sensitivity to oxytocin (EC50: 8.8 nM vs 2.2 nM) were enhanced in the P gingivalis group compared to those in the control group. In the P gingivalis group, COX-2 mRNA expression was not elevated in the placenta or myometrium but was upregulated 2.3-fold in the fetal membrane. The TLR2 mRNA levels in the fetal membrane were 2.7-fold higher in the P gingivalis group, whereas TLR4 levels were not elevated. Activation of the NF-κB p65 and p38 MAPK pathways was enhanced in the fetal membrane of the P gingivalis group. Thus, in mice with chronic dental P gingivalis infection, TLR2-induced inflammation in the fetal membrane leads to upregulation of uterine contractility, leading to preterm birth.
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Affiliation(s)
- Haruhisa Konishi
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Satoshi Urabe
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroshi Miyoshi
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan.,Department of Obstetrics and Gynecology, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Yuko Teraoka
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoko Maki
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Applied Urology and Molecular Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hisako Furusho
- Department of Oral and Maxillofacial Pathobiology, Basic Life Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Mutsumi Miyauchi
- Department of Oral and Maxillofacial Pathobiology, Basic Life Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takashi Takata
- Department of Oral and Maxillofacial Pathobiology, Basic Life Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yoshiki Kudo
- Department of Obstetrics and Gynecology, Graduate School of Biomedical Sciences and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Shunichi Kajioka
- Department of Urology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. .,Department of Applied Urology and Molecular Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan.
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16
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Sabharwal A, Gomes-Filho IS, Stellrecht E, Scannapieco F. Role of periodontal therapy in management of common complex systemic diseases and conditions: An update. Periodontol 2000 2018; 78:212-226. [DOI: 10.1111/prd.12226] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Amarpreet Sabharwal
- Department of Oral Biology; School of Dental Medicine; University at Buffalo; The State University of New York; Buffalo NY USA
| | | | - Elizabeth Stellrecht
- Health Sciences Library; University at Buffalo; The State University of New York; Buffalo NY USA
| | - Frank A. Scannapieco
- Department of Oral Biology; School of Dental Medicine; University at Buffalo; The State University of New York; Buffalo NY USA
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17
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Cardoso EM, Reis C, Manzanares-Céspedes MC. Chronic periodontitis, inflammatory cytokines, and interrelationship with other chronic diseases. Postgrad Med 2017; 130:98-104. [DOI: 10.1080/00325481.2018.1396876] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Elsa Maria Cardoso
- CICS-UBI, Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
- Faculty of Health Sciences (FCS-UBI), University of Beira Interior, Covilhã, Portugal
- Instituto Politécnico da Guarda, Guarda, Portugal
| | - Cátia Reis
- Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, CESPU, Gandra PRD, Portugal
| | - Maria Cristina Manzanares-Céspedes
- Human Anatomy and Embryology Unit, Departament de Patologia i Terapèutica Experimental, Health University of Barcelona Campus (HUBc), University of Barcelona, Barcelona, Spain
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18
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An Umbrella Review Exploring the Effect of Periodontal Treatment in Pregnant Women on the Frequency of Adverse Obstetric Outcomes. J Evid Based Dent Pract 2017; 18:218-239. [PMID: 30077375 DOI: 10.1016/j.jebdp.2017.10.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/27/2017] [Accepted: 10/27/2017] [Indexed: 12/22/2022]
Abstract
OBJECTIVE In the recent years, efforts have been made to reduce epidemiologic indicators of periodontal disease in pregnant women. This umbrella review aims to analyze the systematic reviews/meta-analyses investigating the effect of periodontal therapy in pregnant women on the frequency of obstetric complications (low birth weight, preterm delivery, and preeclampsia) and to identify the gaps in the scientific literature. METHODS A systematic review of systematic reviews with and without meta-analysis of intervention studies was conducted. Quality evaluation and qualitative analysis of the reviews were performed. RESULTS A total of 223 articles were obtained, and 18 of them were included in the analysis, 13 articles included meta-analysis, where 11 were of high quality and 7 of medium quality according to the Assessing the Methodological Quality of Systematic Reviews (AMSTAR) guide. These systematic reviews/meta-analyses included a total of 19 studies (17 randomized clinical trials). Descriptive systematic reviews showed that periodontal therapy has positive effects on reducing the frequency of adverse pregnancy outcomes. In systematic reviews with meta-analysis, overall effect estimators were not significant, although a reduction in the incidence of obstetric complications was observed. Subgroup analysis resulted in significant effects, depending on sociodemographic conditions. CONCLUSIONS Differential findings are not enough to demonstrate that there is a significant reduction in the frequency of adverse pregnancy outcomes in pregnant women receiving periodontal therapy. Possible explanations are related to factors such as the type of studies analyzed, indicator of obstetric complication considered, and specific variables included in the analysis. Many systematic reviews did not address publication bias and did identify gaps in knowledge that require further clarification.
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19
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Tettamanti L, Lauritano D, Nardone M, Gargari M, Silvestre-Rangil J, Gavoglio P, Tagliabue A. Pregnancy and periodontal disease: does exist a two-way relationship? ACTA ACUST UNITED AC 2017; 10:112-118. [PMID: 29876036 DOI: 10.11138/orl/2017.10.2.112] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Periodontal disease (PD) is an inflammatory disease of the tissues supporting the teeth. PD affects 65 million adults over the age of 30 years in the USA, and worldwide 5 to 70% of adults. Women who develop PD during pregnancy, it's estimated 1 woman in 5, may have a higher risk of adverse pregnancy outcomes. PD during pregnancy starts by dental plaque and is increased by the action of pregnancy hormones. In order to study the effect of PD on adverse pregnancy outcomes, we have performed this narrative review summarising the current studies about the influence of PD on pregnancy. Periodontal pockets are a reservoir of oral microbiota. Modifications in oral microbiota may be considered as a potential mechanism for developing PD during pregnancy. PD is surely caused by bacteria, but the progression and worsening are due to a host immune response. The inflammation caused by PD is not limited to the oral cavity. It is hypothesized that episodes of bacteraemia and dissemination of endotoxins from periodontal pockets can induce the activation of the systemic immune response. In conclusion our narrative review shows that there's no relationship between PD and adverse pregnancy outcomes, and PD treatment during pregnancy does not confer a general protection against adverse pregnancy outcomes.
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Affiliation(s)
- L Tettamanti
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - D Lauritano
- Department of Translational Medicine and Surgery, Neuroscience Center of Milan, University of Milano Bicocca, Monza, Italy
| | - M Nardone
- Ministry of Public Health, Rome, Italy
| | - M Gargari
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy
| | | | - P Gavoglio
- Department of DI.S.T.BI.M.O., University of Genova, Genova, Italy
| | - A Tagliabue
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
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20
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Einstein G, Legato MJ, Barros SP, Juster RP, McEwen BS. How the Social Becomes the Biological: The Interaction between the Genome and the Environment. GENDER AND THE GENOME 2017. [DOI: 10.1089/gg.2017.29006.rtl] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Affiliation(s)
- Gillian Einstein
- Wilfred and Joyce Posluns Chair in Women's Brain Health and Aging, Department of Psychology, Dalla Lana School of Public Health, Neuroscience and Gender Medicine, Linköping University, Linköping, Sweden
- Department of Psychology, University of Toronto, Toronto, Canada
| | - Marianne J. Legato
- Emerita Professor of Clinical Medicine, Columbia University, New York, New York
- The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Silvana P. Barros
- Department of Periodontology, School of Dentistry, UNC at Chapel Hill, Chapel Hill, North Carolina
| | - Robert-Paul Juster
- Banting Postdoctoral Research Fellow, Department of Psychiatry, Division of Gender, Sexuality, and Health, Columbia University, New York, New York
- New York State Psychiatric Institute, New York, New York
| | - Bruce S. McEwen
- Alfred E. Mirsky Professor, Head, Harold and Margaret Milliken Hatch, Laboratory of Neuroendocrinology, The Rockefeller University, New York, New York
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Abstract
Accountable care organizations agree to be accountable for the cost and outcomes of an attributed population. However, in many, no provisions have been made to account for oral health. There are several social, medical, and financial implications for health care provider and payer systems and health care outcomes when oral health is not accounted for in patient management. How can an organization strive to improve population health without including the oral health system? Total systemic health for a population must include oral health. Accountable care organizations are positioned to change the course of oral health in the United States and close the disparities that exist among vulnerable populations, including seniors. Such efforts will reduce health care costs. Opportunities abound to expand points of entry into the health care system via dental or medical care. Closing the great divide between 2 historically isolated professions will position the United States to make gains in true population health. I provide evidence of the need to mandate access to oral health care services for all Americans-specifically adults, because legislation currently exists for pediatric dental coverage.
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Affiliation(s)
- Melanie E Mayberry
- Melanie E. Mayberry is with the Department of Oral Health and Integrated Care, University of Detroit Mercy School of Dentistry, Detroit, MI
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22
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Jiang H, Zhang Y, Xiong X, Harville EW, O K, Qian X. Salivary and serum inflammatory mediators among pre-conception women with periodontal disease. BMC Oral Health 2016; 16:131. [PMID: 27978823 PMCID: PMC5159988 DOI: 10.1186/s12903-016-0306-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 10/11/2016] [Indexed: 03/27/2024] Open
Abstract
BACKGROUND There have been inconsistent conclusions regarding the levels of inflammatory mediators in saliva and serum among people with or without periodontal disease. Although pre-conception has been put forward as the optimal time for the periodontal treatment in order to improving pregnancy outcomes, few studies have been conducted to examine inflammatory mediators in saliva and serum among pre-conception women. METHODS Pre-conception women were recruited between January 2012 and December 2014. Women were provided with an oral health examination to detect periodontal disease. Salivary and serum samples were collected at the same of examination. Inflammatory mediators includinginterleukin-1 beta (IL-1β), IL-6, tumor necrosis factor alpha (TNF-α) and beta-glucuronidase (β-glucuronidase) were tested and analyzed among women with overall periodontal disease (n = 442) or moderate/severe periodontal disease (n = 247). Results were compared to that in women with a healthy periodontium (n = 91). RESULTS Significantly increased concentrations of inflammatory mediators of IL-1β, IL-6, TNF-α and β-glucuronidase in saliva and IL-1β, β-glucuronidase and TNF-α in serum were found among pre-conception women with moderate/severe periodontal disease, compared with women without periodontal disease. Significantly increased levels were also found in all the above saliva inflammatory mediators and in serum IL-1β and TNF-α among women with overall periodontal disease. The levels of all inflammatory mediators in saliva and almost all inflammatory mediators except IL-6 in serum significantly increased with severity of periodontal disease. CONCLUSION Periodontal disease is highly associated with the elevated levels of inflammatory mediators in saliva and some mediators in serum among pre-conception women.
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Affiliation(s)
- Hong Jiang
- School of Public Health, Fudan University, Mailbox 175, No. 138 Yixueyuan Road, Shanghai, 200032 China
- Key Laboratory of Public Health Safety (Ministry of Education), Fudan University, Mailbox 175, No. 138 Yixueyuan Road, Shanghai, 200032 China
| | - Yiming Zhang
- Clinical laboratory, Maternal and Child Health Care Hospital, Changzhou Municipality, 16 Boai Road, Changzhou, Jiangsu Province 200032 China
| | - Xu Xiong
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, 1440 Canal Street, New Orleans, LA 70112 USA
| | - Emily W. Harville
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, 1440 Canal Street, New Orleans, LA 70112 USA
| | - Karmin O
- Department of Physiology and Pathophysiology, Faculty of Medicine, Matinoba, Canada
- Department of Animal Science, Faculty of Agricultural & Food Sciences, University of Manitoba, Manitoba, Canada
- St. Boniface Hospital Research Centre, Room 2022, 351 Tache Avenue, Winnipeg, MB R2H 2A6 Canada
| | - Xu Qian
- School of Public Health, Fudan University, Mailbox 175, No. 138 Yixueyuan Road, Shanghai, 200032 China
- Global Health Institute, Fudan University, Mailbox 175, No. 138 Yixueyuan Road, Shanghai, 200032 China
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Jiang H, Su Y, Xiong X, Harville E, Wu H, Jiang Z, Qian X. Prevalence and risk factors of periodontal disease among pre-conception Chinese women. Reprod Health 2016; 13:141. [PMID: 27903295 PMCID: PMC5131524 DOI: 10.1186/s12978-016-0256-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 11/14/2016] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Periodontal disease is one of the most common chronic infectious diseases. It has been reported that periodontal disease is associated with various adverse pregnancy outcomes including preterm birth, low birth weight, and gestational diabetes mellitus. Given the fact that the treatment for periodontal disease during pregnancy was ineffective in improving pregnancy outcomes by most of studies, the pre-conception period has been put forward as a more optimal time. However, very few studies have reported the prevalence of periodontal disease among pre-conception women. This study aimed to examine the prevalence and risk factors of periodontal disease among Chinese pre-conception women. METHODS A survey was conducted among pre-conception women at the Maternal and Child Health Hospital, Changzhou, China between January 2012 and December 2014. A total of 987 pre-conception women were recruited for a full-mouth dental examination after providing informed consent. A dental examination was carried out by probing six sites per tooth using a manual UNC-15 probe and a recording form. RESULTS The overall rate of periodontal disease among participants was 73.9% (729/987) (95% confidence interval (CI): 71.0-76.6%). Among women with periodontal disease, 48.0% of cases were mild, 50.9% were moderate and 1.1% were severe. Self-reported bleeding during tooth brushing was the only significant predictive factor for overall periodontal disease (adjusted odds ratio (aOR): 3.71, 95% CI: 2.24, 6.15, P < 0.001) and moderate/severe periodontal disease (aOR: 5.17, 95% CI: 3.05, 8.79, P < 0.001). CONCLUSION A high prevalence of periodontal disease was found in pre-conception Chinese women. Women who have bleeding during tooth brushing could be at increased risk of periodontal disease, and might require further oral health care.
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Affiliation(s)
- Hong Jiang
- School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Mailbox 175, No. 138 Yixueyuan Road, Shanghai, 200032 People’s Republic of China
| | - Yi Su
- Oral Health Department, Eye & ENT Hospital of Fudan University, 19 Baoqing Road, Shanghai, 200032 China
| | - Xu Xiong
- School of Public Health and Tropical Medicine, Tulane University, 1440 Canal Street, New Orleans, LA 70112 USA
| | - Emily Harville
- School of Public Health and Tropical Medicine, Tulane University, 1440 Canal Street, New Orleans, LA 70112 USA
| | - Hongqiao Wu
- Reproductive Health Department, Maternal and Child Health Care Hospital, Changzhou Municipality, 16 Boai Road, Changzhou, Jiangsu Province 200032 China
| | - Zhijun Jiang
- Oral Health Department, Maternal and Child Health Care Hospital, Changzhou Municipality, 16 Boai Road, Changzhou, Jiangsu Province 200032 China
| | - Xu Qian
- Global Health Institute, School of Public Health, Fudan University, Mailbox 175, No. 138 Yixueyuan Road, Shanghai, 200032 China
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Jiang H, Xiong X, Su Y, Peng J, Zhu X, Wang J, Chen M, Qian X. Use of antiseptic mouthrinse during pregnancy and pregnancy outcomes: a randomised controlled clinical trial in rural China. BJOG 2016; 123 Suppl 3:39-47. [PMID: 27627596 DOI: 10.1111/1471-0528.14010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2016] [Indexed: 12/19/2022]
Affiliation(s)
- H Jiang
- School of Public Health; Fudan University; Shanghai China
- Key Laboratory of Public Health Safety; Ministry of Education; Fudan University; Shanghai China
| | - X Xiong
- School of Public Health and Tropical Medicine; Tulane University; New Orleans LA USA
| | - Y Su
- Eye & ENT Hospital of Fudan University; Shanghai China
| | - J Peng
- Maternal and Child Health Care Hospital; Leping Jiangxi Province China
| | - X Zhu
- Maternal and Child Health Care Hospital; Leping Jiangxi Province China
| | - J Wang
- Maternal and Child Health Care Hospital; Leping Jiangxi Province China
| | - M Chen
- School of Public Health; Fudan University; Shanghai China
- Key Laboratory of Public Health Safety; Ministry of Education; Fudan University; Shanghai China
| | - X Qian
- School of Public Health; Fudan University; Shanghai China
- Global Health Institute; Fudan University; Shanghai China
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Jiang H, Xiong X. Periodontitis may be Associated with Gestational Diabetes Mellitus but not Affirmatively. J Evid Based Dent Pract 2016; 16:121-3. [PMID: 27449842 DOI: 10.1016/j.jebdp.2016.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION Association Between Periodontitis and Gestational Diabetes Mellitus: Systematic Review and Meta-Analysis. Esteves Lima RP, es Cyrino RM, Dutra BC, da Silveira JO, Martins CC, Cota LOM, Costa FO. J Periodontol 2016;87(1):48-57. SOURCE OF FUNDING The research was supported by the Coordination for the Improvement of Higher Education Personnel (CAPES, Brazil), the Minas Gerais State Research Foundation (FAPEMIG, Brazil), the National Council of Scientific and Technological Development (CNPq, Brazil), and the Dean of Research from the Federal University of Minas Gerais (PRPq/UFMG, Brazil) TYPE OF STUDY/DESIGN Systematic review with meta-analysis.
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Michalowicz BS, Gustafsson A, Thumbigere-Math V, Buhlin K. The effects of periodontal treatment on pregnancy outcomes. J Periodontol 2016; 84:S195-208. [PMID: 23631579 DOI: 10.1902/jop.2013.1340014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Preterm infants are at greater risk than term infants for physical and developmental disorders. Morbidity and mortality increases as gestational age at delivery decreases. Observational studies indicate an association between poor periodontal health and risk for preterm birth or low birthweight, making periodontitis a potentially modifiable risk factor for prematurity. AIM To identify randomized controlled trials (RCTs) published between January 2011 and July 2012 and discuss all published RCTs testing whether periodontal therapy reduces rates of preterm birth and low birthweight. METHODS Search of databases including PubMed, ISI Web of Science and Cochrane Library. RESULTS The single RCT identified showed no significant effect of periodontal treatment on birth outcomes. DISCUSSION All published trials included non-surgical periodontal therapy; only two included systemic antimicrobials as part of test therapy. The trials varied substantially in terms of sample size, obstetric histories of subjects, study preterm birth rates and the periodontal treatment response. The largest trials--also judged to be high-quality and at low risk of bias--have yielded consistent results, and indicate that treatment does not alter rates of adverse pregnancy outcomes. CONCLUSION Non-surgical periodontal therapy, scaling and root planing, does not improve birth outcomes in pregnant women with periodontitis.
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Affiliation(s)
- Bryan S Michalowicz
- Department of Developmental and Surgical Sciences, University of Minnesota School of Dentistry, Minneapolis, MN 55455, USA.
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Michalowicz BS, Gustafsson A, Thumbigere-Math V, Buhlin K. The effects of periodontal treatment on pregnancy outcomes. J Clin Periodontol 2016; 40 Suppl 14:S195-208. [PMID: 23627329 DOI: 10.1111/jcpe.12081] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 01/08/2013] [Accepted: 11/14/2012] [Indexed: 12/31/2022]
Abstract
BACKGROUND Preterm infants are at greater risk than term infants for physical and developmental disorders. Morbidity and mortality increases as gestational age at delivery decreases. Observational studies indicate an association between poor periodontal health and risk for preterm birth or low birthweight, making periodontitis a potentially modifiable risk factor for prematurity. AIM To identify randomized controlled trials (RCTs) published between January 2011 and July 2012 and discuss all published RCTs testing whether periodontal therapy reduces rates of preterm birth and low birthweight. METHODS Search of databases including PubMed, ISI Web of Science and Cochrane Library. RESULTS The single RCT identified showed no significant effect of periodontal treatment on birth outcomes. DISCUSSION All published trials included non-surgical periodontal therapy; only two included systemic antimicrobials as part of test therapy. The trials varied substantially in terms of sample size, obstetric histories of subjects, study preterm birth rates and the periodontal treatment response. The largest trials - also judged to be high-quality and at low risk of bias - have yielded consistent results, and indicate that treatment does not alter rates of adverse pregnancy outcomes. CONCLUSION Non-surgical periodontal therapy, scaling and root planing, does not improve birth outcomes in pregnant women with periodontitis.
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Affiliation(s)
- Bryan S Michalowicz
- Department of Developmental and Surgical Sciences, University of Minnesota School of Dentistry, Minneapolis, Minnesota, USA.
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Vanterpool SF, Tomsin K, Reyes L, Zimmermann LJ, Kramer BW, Been JV. Risk of adverse pregnancy outcomes in women with periodontal disease and the effectiveness of interventions in decreasing this risk: protocol for systematic overview of systematic reviews. Syst Rev 2016; 5:16. [PMID: 26832150 PMCID: PMC4735974 DOI: 10.1186/s13643-016-0195-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 01/21/2016] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Periodontal disease is an inflammatory disease of the tissues supporting the teeth. Women who have periodontal disease while pregnant may be at risk of adverse pregnancy outcomes. Although the association between periodontal disease and adverse pregnancy outcomes has been addressed in a considerable number of systematic reviews and meta-analyses, there are important differences in the conclusions of these reviews. Systematic reviews assessing the effectivity of various therapeutic interventions to treat periodontal disease during pregnancy to try and reduce adverse pregnancy outcomes have also arrived at different conclusions. We aim to provide a systematic overview of systematic reviews comparing the frequency of adverse pregnancy outcomes between women with and without periodontal disease and/or evaluating the effect of preventive and therapeutic interventions for periodontal disease before or during pregnancy on adverse pregnancy outcomes. METHODS We will include systematic reviews reporting on studies comparing adverse pregnancy outcomes: (i) between women with or without periodontal disease before (<6 months) or during pregnancy and/or (ii) according to preventive or therapeutic interventions for periodontal disease. Eligible interventions include (combinations of) the following: oral hygiene education, use of antibiotics, subgingival scaling, and root planing. For preventive and/or therapeutic reviews, the following comparisons will be considered: no intervention, a placebo intervention, or an alternative intervention. Our primary adverse pregnancy outcomes of interests are maternal mortality, preterm delivery, and perinatal mortality. Two reviewers will independently identify eligible published and unpublished systematic reviews from six electronic databases and using hand searching of reference lists and citations. Data items extracted from included systematic reviews are based on the Cochrane Effective Practice and Organization of Care checklist and the preferred reporting items for systematic review and meta-analysis (PRISMA) statement. In our narrative data synthesis, we will consider risk of bias of individual reviews, focusing mainly on the conclusions of the highest quality reviews using the assessment of multiple systematic reviews (AMSTAR) checklist. Disagreements during search, selection, data extraction, and risk of bias assessment will be resolved through discussion and/or consultation of a third reviewer. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42015030132.
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Affiliation(s)
- Sizzle F Vanterpool
- Department of Pediatrics, Maastricht University Medical Center, P. Debyelaan 25, 6229 HX, Maastricht, The Netherlands.
- Department of Neuroscience, School for Mental Health and Neuroscience (MHeNS), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands.
| | - Kathleen Tomsin
- Department of Pediatrics, Maastricht University Medical Center, P. Debyelaan 25, 6229 HX, Maastricht, The Netherlands.
| | - Leticia Reyes
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI, 53706, USA.
| | - Luc J Zimmermann
- Department of Pediatrics, Maastricht University Medical Center, P. Debyelaan 25, 6229 HX, Maastricht, The Netherlands.
- School for Oncology and Developmental Biology (GROW), Maastricht University, Universiteitssingel 40, 6229 ER, Maastricht, The Netherlands.
| | - Boris W Kramer
- Department of Pediatrics, Maastricht University Medical Center, P. Debyelaan 25, 6229 HX, Maastricht, The Netherlands.
- Department of Neuroscience, School for Mental Health and Neuroscience (MHeNS), Maastricht University, Universiteitssingel 50, 6229 ER, Maastricht, The Netherlands.
- School for Oncology and Developmental Biology (GROW), Maastricht University, Universiteitssingel 40, 6229 ER, Maastricht, The Netherlands.
| | - Jasper V Been
- Department of Pediatrics, Maastricht University Medical Center, P. Debyelaan 25, 6229 HX, Maastricht, The Netherlands.
- School for Public Health and Primary Care (CAPHRI), Maastricht University, Universiteitssingel 40, 6229 ER, Maastricht, The Netherlands.
- Division of Neonatology, Sophia Children's Hospital, Erasmus University Medical Center, Wytemaweg 80, 3015CN, Rotterdam, The Netherlands.
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Jiang H, Xiong X, Buekens P, Su Y, Qian X. Use of mouth rinse during pregnancy to improve birth and neonatal outcomes: a randomized controlled trial. BMC Pregnancy Childbirth 2015; 15:311. [PMID: 26608342 PMCID: PMC4660817 DOI: 10.1186/s12884-015-0761-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 11/23/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Poor oral health, such as periodontal (gum) disease, has been found to be associated with an increased risk of adverse pregnancy outcomes including preterm birth, low birth weight, and neonatal and infant mortality, especially in low-and middle-income countries. However, there is little or no access to preventive dental care in most low-and middle-income countries. We propose to develop and test a "Mouth Rinse Intervention" among pregnant women to prevent the progression of periodontal disease during pregnancy and reduce adverse birth and neonatal outcomes in a rural county of China. METHODS/DESIGN This is a randomized controlled clinical trial. A sample of 468 (234 in each arm of the study) women in early pregnancy with periodontal disease will be recruited for the study. Periodontal disease will be diagnosed through the methods of Periodontal Screening and Recording. All women diagnosed with periodontal disease will be randomly allocated into the intervention or control group. Women assigned in the intervention group will be provided with non-alcohol antimicrobial mouth rinse containing cetylpyridinium chloride throughout the pregnancy and oral health education. Women in the control group will receive a package of tooth brush and paste, plus oral hygiene education. Women will be followed-up to childbirth until the 42nd day postpartum. The main outcomes include mean birthweight (gram) and mean gestational age (week). DISCUSSION Compared with conventional mechanical 'scaling and root planning' periodontal treatment during pregnancy, our proposed mouth rinse intervention could be a simple, cost-effective, and sustainable solution to improve both mother's oral health and neonate outcomes. If the mouth rinse is confirmed to be effective, it would demonstrate great potential for the application in other low- or middle-income countries to prevent adverse birth outcomes such as preterm birth and low birth weight and to reduce neonatal and infant mortality. TRIAL REGISTRATION This trial was registered with Chinese Clinical Trial Registry (ChiCTR): ( #ChiCTR-TRC-13003768 ) on November 06, 2013.
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Affiliation(s)
- Hong Jiang
- School of Public Health; Global Health Institute, Fudan University, Mailbox 175, No. 138 Yixueyuan Road, Shanghai, 200032, China. .,Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China.
| | - Xu Xiong
- School of Public Health and Tropical Medicine, Tulane University, 1440 Canal Street, Suite 2022, New Orleans, LA, 70112, USA.
| | - Pierre Buekens
- School of Public Health and Tropical Medicine, Tulane University, 1440 Canal Street, Suite 2022, New Orleans, LA, 70112, USA.
| | - Yi Su
- Eye & ENT Hospital of Fudan University, Shanghai, China.
| | - Xu Qian
- School of Public Health; Global Health Institute, Fudan University, Mailbox 175, No. 138 Yixueyuan Road, Shanghai, 200032, China. .,Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China.
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Fox C, Eichelberger K. Maternal microbiome and pregnancy outcomes. Fertil Steril 2015; 104:1358-63. [PMID: 26493119 DOI: 10.1016/j.fertnstert.2015.09.037] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/14/2015] [Accepted: 09/25/2015] [Indexed: 01/14/2023]
Abstract
Alterations of the human microbiome are a known characteristic of various inflammatory disease states and have been linked to spontaneous preterm birth and other adverse pregnancy outcomes. Recent advances in metagenomic research have proven that the placenta harbors its own rich diverse microbiome, even in clinically healthy pregnancies, and preterm birth may be a result of hematogenous infection rather than exclusively ascending infection as previously hypothesized. In this review, we describe the microbiome in healthy nongravid and gravid women to contrast it with the alterations of the microbiome associated with spontaneous preterm birth. We also discuss the importance of host gene-environment interactions and the potential for microbiota-specific targeted therapies to reduce the risk of adverse pregnancy outcomes.
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Affiliation(s)
- Chelsea Fox
- Department of Obstetrics and Gynecology, University of South Carolina-Greenville School of Medicine, Greenville Health Systems, Greenville, South Carolina
| | - Kacey Eichelberger
- Division of Maternal-Fetal Medicine, University of South Carolina-Greenville School of Medicine, Greenville Health Systems, Greenville, South Carolina.
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Parthiban P, Mahendra J. Toll-Like Receptors: A Key Marker for Periodontal Disease and Preterm Birth - A Contemporary Review. J Clin Diagn Res 2015; 9:ZE14-7. [PMID: 26501032 PMCID: PMC4606361 DOI: 10.7860/jcdr/2015/14143.6526] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 07/25/2015] [Indexed: 01/11/2023]
Abstract
The receptors of the innate immune system have evolved to recognize pathogenic bacteria in a complex manner. Out of these immune receptors, the pattern recognition receptors (PRRs) such as Toll like receptors have gained importance off late to play a key role in the activation of cascade of inflammatory cytokines in pathogenesis of preterm birth. Preterm birth has become leading cause of neonatal deaths globally. The concept of oral infection influencing the occurrence of preterm delivery has gained importance. Translocation of periodontal pathogens and inflammatory mediators play role in the pathogenesis of preterm labour. The transmembrane toll like receptors of innate immunity have been recently implicated in the association of periodontal infection and preterm labour. The TLRs are considered as a key marker and TLR blockade can be a critical method for treating women who are exposed to periodontal pathogens. This review is aimed at discussing the role of TLR in periodontal disease and its relationship with preterm birth.
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Affiliation(s)
- Prathahini Parthiban
- Post Graduate Student, Department of Periodontology, Meenakshi Ammal Dental College & Hospital, Chennai, India
| | - Jaideep Mahendra
- Professor, Department of Periodontology, Meenakshi Ammal Dental College & Hospital, Chennai, India
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Identification of a gene in Mycoplasma hominis associated with preterm birth and microbial burden in intraamniotic infection. Am J Obstet Gynecol 2015; 212:779.e1-779.e13. [PMID: 25637842 DOI: 10.1016/j.ajog.2015.01.032] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 12/30/2014] [Accepted: 01/24/2015] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Microbial invasion of the amniotic cavity is associated with spontaneous preterm labor and adverse pregnancy outcome, and Mycoplasma hominis often is present. However, the pathogenic process by which M hominis invades the amniotic cavity and gestational tissues, often resulting in chorioamnionitis and preterm birth, remains unknown. We hypothesized that strains of M hominis vary genetically with regards to their potential to invade and colonize the amniotic cavity and placenta. STUDY DESIGN We sequenced the entire genomes of 2 amniotic fluid isolates and a placental isolate of M hominis from pregnancies that resulted in preterm births and compared them with the previously sequenced genome of the type strain PG21. We identified genes that were specific to the amniotic fluid/placental isolates. We then determined the microbial burden and the presence of these genes in another set of subjects from whom samples of amniotic fluid had been collected and were positive for M hominis. RESULTS We identified 2 genes that encode surface-located membrane proteins (Lmp1 and Lmp-like) in the sequenced amniotic fluid/placental isolates that were truncated severely in PG21. We also identified, for the first time, a microbial gene of unknown function that is referred to in this study as gene of interest C that was associated significantly with bacterial burden in amniotic fluid and the risk of preterm delivery in patients with preterm labor. CONCLUSION A gene in M hominis was identified that is associated significantly with colonization and/or infection of the upper reproductive tract during pregnancy and with preterm birth.
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Zi MYH, Longo PL, Bueno-Silva B, Mayer MPA. Mechanisms Involved in the Association between Periodontitis and Complications in Pregnancy. Front Public Health 2015; 2:290. [PMID: 25688342 PMCID: PMC4310218 DOI: 10.3389/fpubh.2014.00290] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 12/14/2014] [Indexed: 01/08/2023] Open
Abstract
The association between periodontitis and some of the problems with pregnancy such as premature delivery, low weight at birth, and preeclampsia (PE) has been suggested. Nevertheless, epidemiological data have shown contradictory data, mainly due to differences in clinical parameters of periodontitis assessment. Furthermore, differences in microbial composition and immune response between aggressive and chronic periodontitis are not addressed by these epidemiological studies. We aimed to review the current data on the association between some of these problems with pregnancy and periodontitis, and the mechanisms underlying this association. Shifts in the microbial composition of the subgingival biofilm may occur during pregnancy, leading to a potentially more hazardous microbial community. Pregnancy is characterized by physiological immune tolerance. However, the infection leads to a shift in maternal immune response to a pathogenic pro-inflammatory response, with production of inflammatory cytokines and toxic products. In women with periodontitis, the infected periodontal tissues may act as reservoirs of bacteria and their products that can disseminate to the fetus-placenta unit. In severe periodontitis patients, the infection agents and their products are able to activate inflammatory signaling pathways locally and in extra-oral sites, including the placenta-fetal unit, which may not only induce preterm labor but also lead to PE and restrict intrauterine growth. Despite these evidences, the effectiveness of periodontal treatment in preventing gestational complications was still not established since it may be influenced by several factors such as severity of disease, composition of microbial community, treatment strategy, and period of treatment throughout pregnancy. This lack of scientific evidence does not exclude the need to control infection and inflammation in periodontitis patients during pregnancy, and treatment protocols should be validated.
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Affiliation(s)
- Marcela Yang Hui Zi
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Priscila Larcher Longo
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Bruno Bueno-Silva
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marcia Pinto Alves Mayer
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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Aagaard K, Ma J, Antony KM, Ganu R, Petrosino J, Versalovic J. The placenta harbors a unique microbiome. Sci Transl Med 2014; 6:237ra65. [PMID: 24848255 DOI: 10.1126/scitranslmed.3008599] [Citation(s) in RCA: 1293] [Impact Index Per Article: 129.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Humans and their microbiomes have coevolved as a physiologic community composed of distinct body site niches with metabolic and antigenic diversity. The placental microbiome has not been robustly interrogated, despite recent demonstrations of intracellular bacteria with diverse metabolic and immune regulatory functions. A population-based cohort of placental specimens collected under sterile conditions from 320 subjects with extensive clinical data was established for comparative 16S ribosomal DNA-based and whole-genome shotgun (WGS) metagenomic studies. Identified taxa and their gene carriage patterns were compared to other human body site niches, including the oral, skin, airway (nasal), vaginal, and gut microbiomes from nonpregnant controls. We characterized a unique placental microbiome niche, composed of nonpathogenic commensal microbiota from the Firmicutes, Tenericutes, Proteobacteria, Bacteroidetes, and Fusobacteria phyla. In aggregate, the placental microbiome profiles were most akin (Bray-Curtis dissimilarity <0.3) to the human oral microbiome. 16S-based operational taxonomic unit analyses revealed associations of the placental microbiome with a remote history of antenatal infection (permutational multivariate analysis of variance, P = 0.006), such as urinary tract infection in the first trimester, as well as with preterm birth <37 weeks (P = 0.001).
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Affiliation(s)
- Kjersti Aagaard
- Division of Maternal-Fetal Medicine, Departments of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA. Department of Molecular and Human Genetics, Bioinformatics Research Laboratory, Baylor College of Medicine, Houston, TX 77030, USA. Department of Molecular and Cell Biology, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Jun Ma
- Division of Maternal-Fetal Medicine, Departments of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA. Department of Molecular and Human Genetics, Bioinformatics Research Laboratory, Baylor College of Medicine, Houston, TX 77030, USA
| | - Kathleen M Antony
- Division of Maternal-Fetal Medicine, Departments of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA
| | - Radhika Ganu
- Division of Maternal-Fetal Medicine, Departments of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA
| | - Joseph Petrosino
- Department of Microbiology and Molecular Virology, Alkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, Houston, TX 77030, USA
| | - James Versalovic
- Department of Pathology and Immunology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX 77030, USA
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Huang X, Wang J, Liu J, Hua L, Zhang D, Hu T, Ge ZL. Maternal periodontal disease and risk of preeclampsia: A meta-analysis. ACTA ACUST UNITED AC 2014; 34:729-735. [DOI: 10.1007/s11596-014-1343-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 06/26/2014] [Indexed: 12/26/2022]
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Christian LM, Iams J, Porter K, Leblebicioglu B. Self-rated health among pregnant women: associations with objective health indicators, psychological functioning, and serum inflammatory markers. Ann Behav Med 2014; 46:295-309. [PMID: 23765366 DOI: 10.1007/s12160-013-9521-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Biobehavioral correlates of self-rated health in pregnancy are largely unknown. PURPOSE The goals of this study were to examine, in pregnant women, associations of self-rated health with (1) demographics, objective health status, health behaviors, and psychological factors, and (2) serum inflammatory markers. METHODS In the second trimester of pregnancy, 101 women provided a blood sample, completed measures of psychosocial stress, health status, and health behaviors, and received a comprehensive periodontal examination. RESULTS The following independently predicted poorer self-rated health: (1) greater psychological stress, (2) greater objective health diagnoses, (3) higher body mass index, and (4) past smoking (versus never smoking). Poorer self-rated health was associated with higher serum interleukin-1β (p = 0.02) and marginally higher macrophage migration inhibitory factor (p = 0.06). These relationships were not fully accounted for by behavioral/psychological factors. CONCLUSIONS This study provides novel data regarding factors influencing subjective ratings of health and the association of self-rated health with serum inflammatory markers in pregnant women.
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Affiliation(s)
- Lisa M Christian
- Department of Psychiatry, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA,
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Jiang H, Xiong X, Su Y, Zhang Y, Wu H, Jiang Z, Qian X. A randomized controlled trial of pre-conception treatment for periodontal disease to improve periodontal status during pregnancy and birth outcomes. BMC Pregnancy Childbirth 2013; 13:228. [PMID: 24321402 PMCID: PMC4029591 DOI: 10.1186/1471-2393-13-228] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 12/03/2013] [Indexed: 12/22/2022] Open
Abstract
Background Evidence has suggested that periodontal disease is associated with an increased risk of various adverse pregnancy and birth outcomes. However, several large clinical randomized controlled trials failed to demonstrate periodontal therapy during pregnancy reduced the incidence of adverse pregnancy and birth outcomes. It has been suggested that the pre-conception period may be an optimal period for periodontal disease treatment rather than during pregnancy. To date, no randomized controlled trial (RCT) has examined if treating periodontal disease before pregnancy reduces adverse birth outcomes. This study aims to examine if the pre-conception treatment of periodontal disease will lead to improved periodontal status during late pregnancy and subsequent birth outcomes. Methods/Design A sample of 470 (235 in each arm of the study) pre-conception women who plan to conceive within one year and with periodontal disease will be recruited for the study. All participants will be randomly allocated to the intervention or control group. The intervention group will receive free therapy including dental scaling and root planning (the standard therapy), supragingival prophylaxis, and oral hygiene education. The control group will only receive supragingival prophylaxis and oral hygiene education. Women will be followed throughout their pregnancy and then to childbirth. The main outcomes include periodontal disease status in late pregnancy and birth outcomes measured such as mean birth weight (grams), and mean gestational age (weeks). Periodontal disease will be diagnosed through a dental examination by measuring probing depth, clinical attachment loss and percentage of bleeding on probing (BOP) between gestational age of 32 and 36 weeks. Local and systemic inflammatory mediators are also included as main outcomes. Discussion This will be the first RCT to test whether treating periodontal disease among pre-conception women reduces periodontal disease during pregnancy and prevents adverse birth outcomes. If the effect of pre-pregnancy periodontal treatment is confirmed, this intervention could be recommended for application in low- or middle-income countries to improve both oral health and maternal and child health. Trial registration This trial is registered with Chinese Clinical Trial Registry (ChiCTR): ChiCTR-TRC-12001913.
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Affiliation(s)
| | | | | | | | | | | | - Xu Qian
- School of Public Health, Fudan University, No, 138 Yixueyuan Road, Shanghai, China.
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Abstract
Current research shows that women tend to receive less dental care than usual when they are pregnant. In 2012, the first national consensus statement on oral health care during pregnancy was issued, emphasizing both the importance and safety of routine dental care for pregnant women. This article reviews the current recommendations for perinatal oral health care and common oral manifestations during pregnancy. Periodontal disease and its association with preterm birth and low birth weight are also discussed, as is the role played by dental intervention in these adverse outcomes.
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Relationship between periodontal inflammation and fetal growth in pregnant women: a cross-sectional study. Arch Gynecol Obstet 2012; 287:951-7. [DOI: 10.1007/s00404-012-2660-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Accepted: 11/23/2012] [Indexed: 10/27/2022]
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George A, Shamim S, Johnson M, Dahlen H, Ajwani S, Bhole S, Yeo AE. How do dental and prenatal care practitioners perceive dental care during pregnancy? Current evidence and implications. Birth 2012; 39:238-47. [PMID: 23281906 DOI: 10.1111/j.1523-536x.2012.00553.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/26/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND Poor maternal oral health may be associated with adverse pregnancy and infant outcomes. However, women seldom seek dental care during pregnancy, and misconceptions by prenatal care practitioners about oral health care during pregnancy may contribute to the problem. The aim of this study was to review current knowledge, attitudes, and behavior of dental and prenatal care practitioners about oral health care during pregnancy. METHODS This review examined all studies published in English that explored the knowledge, attitude, behavior, and barriers faced by dentists, general practitioners, midwives, and obstetricians/gynecologists with respect to oral health care during pregnancy. RESULTS Despite acknowledging the importance of maternal oral health, many dentists are uncertain about the safety of dental procedures and are hesitant in treating pregnant women. General practitioners and midwives are poorly informed about the impact of poor maternal oral health and rarely initiate this topic during prenatal care. Many general practitioners also believe that dental procedures are unsafe during pregnancy. Obstetricians/gynecologists are well informed about perinatal oral health and are supportive of dental procedures, but because of lack of training in this area and competing health demands they seldom focus on oral health care during their prenatal care. CONCLUSION No real consensus exists among dentists and prenatal care practitioners with respect to oral health care during pregnancy. This issue poses a significant deterrent for pregnant women seeking dental care. Practice guidelines in perinatal oral health are needed for health professionals to emphasize this important aspect of prenatal care.
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Affiliation(s)
- Ajesh George
- Centre for Applied Nursing Research (CANR), South Western Sydney Local Health District (SWSLHD)/University of Western Sydney, Sydney, New South Wales, Australia
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Cetin I, Pileri P, Villa A, Calabrese S, Ottolenghi L, Abati S. Pathogenic mechanisms linking periodontal diseases with adverse pregnancy outcomes. Reprod Sci 2012; 19:633-41. [PMID: 22421445 DOI: 10.1177/1933719111432871] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In the last 2 decades, a large proportion of studies have focused on the relationship between maternal periodontal disease and poor obstetric outcomes. The aim of the present review is to summarize the current knowledge about human studies on the pathogenetic mechanisms linking periodontal diseases with adverse pregnancy outcomes. A search of the medical literature was conducted using NIH (National Institute of Health) Pubmed through April 2011. Articles were identified with the Medical Subject Heading (MeSH) and free text terms "small for gestational age (SGA)," "preeclampsia," "preterm labor," and "periodontal disease." Experimental human studies have shown that periodontal pathogens may disseminate toward placental and fetal tissues accompanied by an increase in inflammatory mediators in the placenta. As such, new inflammatory reactions within the placental tissues of the pregnant woman may occur, the physiological levels of prostaglandin E(2) (PGE(2)) and tumor necrosis factor-α (TNF-α) in the amniotic fluid may increase and eventually lead to premature delivery. Although many data from clinical trials suggest that periodontal disease may increase the adverse pregnancy outcome, the exact pathogenetic mechanism involved remains controversial. The findings explain the potential link between periodontal infections and adverse pregnancy outcomes. First, periodontal bacteria can directly cause infections both of the uteroplacenta and the fetus; second, systemic inflammatory changes induced by periodontal diseases can activate responses at the maternal-fetal interface. Of note, associative studies have produced different results in different population groups and no conclusive evidence has still been produced for the potential role of preventive periodontal care to reduce the risk factors of preterm birth.
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Affiliation(s)
- I Cetin
- Unit of Obstetrics and Gynecology, Department of Clinical Sciences L. Sacco, and Center for Fetal Research Giorgio Pardi, University of Milan, Milan, Italy.
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