Association of Quinolone Exposure in the First-Trimester of Pregnancy and the Risk of Major Congenital Malformations: A Health Administrative Database Study in Japan.

Purpose: To evaluate the risk of major congenital malformations (MCMs) associated with quinolone exposure during the first trimester of pregnancy using a large administrative database in Japan.

Methods: A large claims database was used from January 2005 to November 2019. The dates of pregnancy onset and delivery were estimated using the developed algorithm.

Genetic predisposition for immunoglobulin E production explains atopic risk in children: Tohoku Medical Megabank cohort study.

The atopic march lacks early identification methods for high-risk children. In this study, we assessed whether the risk of atopic diseases in infants could be predicted using a polygenic score (PGS) for total immunoglobulin E (IgE) levels. The PGS estimated using the polygenic model generated by PRS-CS was significantly correlated with log-transformed IgE levels (ρ = 0.

Household income modifies the association between social capital and gestational diabetes mellitus in Japan: Results from TMM BirThree Cohort Study.

Introduction: While social capital can prevent diabetes, these benefits can be heterogeneous with respect to socioeconomic status. We investigated the association between social capital and gestational diabetes mellitus (GDM) while examining effect modification by household income.

Materials And Methods: We conducted a secondary data analysis using the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study carried out between July 2013 and March 2017.

Synergistic effects of cardiovascular health and social isolation on adverse pregnancy outcomes.

Adverse pregnancy outcomes (APOs) affect approximately 20% pregnant women, and their incidence is increasing. The aim of this study was to investigate the effect of cardiovascular health (CVH) during pregnancy on APOs. We analyzed data from 14,930 pregnant women in the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study.

Deep-embedded clustering by relevant scales and genome-wide association study in autism.

Autism spectrum disorder (ASD) presents with heterogeneous phenotypic and genetic characteristics. Despite investigation into the molecular mechanisms underlying ASD, its etiology remains elusive. In our previous investigation within the Simons Simplex Collection (SSC), we noted increased signals through a genome-wide association study (GWAS) by clustering patients with ASD and reducing the sample size.

Validity of single vs. multiple FFQs in ranking nutrient intake among Japanese adults: the Tohoku Medical Megabank Project.

Background And Objectives: Repeating food frequency questionnaires (FFQs) within the same population was reported to improve the validity of correlation coefficient (CC). However, the enhancement of validity in ranking agreement remains underreported. Herein, we assessed the validity of energy and nutrient intake es-timates using single and multiple FFQs and their ability to rank individuals.

Respiratory syncytial virus infection, non-respiratory syncytial virus respiratory infections, and later wheezing.

Background: Studies investigating whether respiratory syncytial virus (RSV) infection, non-RSV respiratory infections, respiratory-related disorders, and non-respiratory-related disorders are associated with subsequent wheezing are limited in Japan. We aimed to elucidate the relationship between hospitalization for RSV infection, non-RSV respiratory infections, respiratory-related disorders, as well as non-respiratory-related disorders and subsequence wheezing in Japanese children.

Methods: This study included 7340 children and was conducted under the TMM BirThree Cohort Study (Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study).

Longitudinal association between the duration of eye gaze fixation on social information and specific symptoms of neurodevelopmental disorders in children: A large-scale community-based cohort study.

Aim: Autism spectrum disorder (ASD) is a neurodevelopmental condition clinically characterized by abnormalities in eye contact during social interactions. Eye-tracking systems have been used to screen individuals with ASD by capturing atypical eye gaze patterns of diagnostic significance, such as reduced duration of eye gaze fixation on social information. However, most prior studies have focused on the screening accuracy of eye-tracking systems in children already diagnosed with ASD, with few longitudinal assessments conducted on a large scale.

Preeclampsia prediction with maternal and paternal polygenic risk scores: the TMM BirThree Cohort Study.

Genomic information from pregnant women and the paternal parent of their fetuses may provide effective biomarkers for preeclampsia (PE). This study investigated the association of parental polygenic risk scores (PRSs) for blood pressure (BP) and PE with PE onset and evaluated predictive performances of PRSs using clinical predictive variables. In the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study, 19,836 participants were genotyped using either Affymetrix Axiom Japonica Array v2 (further divided into two cohorts-the PRS training cohort and the internal-validation cohort-at a ratio of 1:2) or Japonica Array NEO (external-validation cohort).

Exploring the association between human breast milk lipids and early adiposity rebound in children: A case-control study.

Objectives: Adiposity rebound (AR) corresponds to the start of the second rise in the body mass index curve during infant growth. Early AR (before age 5) confers increased risk of adiposity and metabolic disorders but is less likely to occur in breastfed infants. Although lipids in breast milk are important in child growth, information is limited regarding which lipids are involved in AR.

Genetic effects on gestational diabetes mellitus and their interactions with environmental factors among Japanese women.

Gestational diabetes mellitus (GDM) is common in Japanese women, posing serious risks to mothers and offspring. This study investigated the influence of maternal genotypes on the risk of GDM and examined how these genotypes modify the effects of psychological and dietary factors during pregnancy. We analyzed data from 20,399 women in the Tohoku Medical Megabank Project Birth and Three-Generation Cohort.

Association Between Human Milk Oligosaccharides and Early Adiposity Rebound in Children: A Case-Control Study of the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study.

Background: Adiposity rebound (AR) is the point when the BMI begins to rise again during early childhood. Early AR (before age 5) is associated with higher risk of lifelong obesity and metabolic disorders and may be influenced by breastfeeding. Although human milk oligosaccharides (HMOs) in breast milk are crucial for child growth, their association with AR status has not been studied.

Maternal Fasting Plasma Glucose Level in Early Gestation and Developmental Delay in 2-year-old Children.

Background: The association of maternal hyperglycemia with childhood developmental delay has been examined; however, only 2 studies used maternal blood glucose level as a continuous variable as an exposure. A present study aimed to investigate the influence of maternal fasting plasma glucose (mFPG) level in early gestation on developmental delay in children.

Methods: This cohort study included 1541 mother-child pairs who participated in the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study.

Inclination of antidepressant medication continuation during pregnancy between 2012 and 2023 in Japan: A cohort study.

Background: As multiple Japanese academic societies have recently issued treatment guidelines for perinatal antidepressant treatments, it is considered worthwhile to evaluate the latest trends and continuation of antidepressant medication during pregnancy to optimize antenatal prescriptions.

Methods: The prevalence, trend, and continuation of antidepressant use during pregnancy in Japan from 2012 to 2023 were evaluated, using a large administrative claims database, in women whose pregnancies ended in live births. Annual changes were evaluated using a multivariate logistic regression model adjusted for maternal age at delivery.

Validity of a Self-administered Food Frequency Questionnaire for Genomic and Omics Research Among Pregnant Women: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study.

Background: The Tohoku Medical Megabank Project has initiated the Birth and Three-Generation Cohort Study (TMM BirThree Cohort Study) including genomic and omics investigations and conducted a self-administered food frequency questionnaire with the response option "constitutionally unable to eat or drink it" for individual food items (TMM-FFQ) for pregnant women. This study evaluated the validity of the TMM-FFQ among pregnant women.

Methods: Participants comprised 122 pregnant women aged ≥20 years residing in Miyagi Prefecture who completed weighed food records (WFRs) for 3 days as reference intake and the TMM-FFQ during mid-pregnancy.

Validity of a Web-Based 24-Hour Dietary Recall of Energy and Nutrient Intakes in Japanese Adults.

Recently, web-based dietary assessment tools for the targeted population have been developed and used to estimate the dietary intake level in several epidemiological studies. This study aimed to examine the validity of estimating energy and nutrient intake by the web-based 24 h dietary recall (Web24HR), which we developed for the Japanese population. Overall, 228 adults aged ≥20 years who agreed to participate were included.

Evaluation of depression at 6 and 12 months postpartum by examining depressive symptoms and self-harm ideation during the early postpartum period: Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study.

Aim: The aim of this study was to evaluate depression at 6 and 12 months postpartum, using the Edinburgh Postpartum Depression Scale (EPDS) total score and its subitem regarding self-harm ideation (SHI) at 1 month postpartum.

Methods: A sample of 12,358 postpartum women answered the EPDS and questionaries at 1, 6, and 12 months postpartum longitudinally.

Results: For participants with postpartum depression (PPD; EPDS total score ≥9) and SHI (SHI sub-score ≥1) at 1 month postpartum, the risk of depression at 6 and 12 months postpartum (odds ratio [95% confidence interval] at 6 and 12 months postpartum: 20.

Skin health survey on atopic dermatitis among Japanese children: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study.

Background: Precise skin phenotypic data are indispensable in accurately diagnosing atopic dermatitis (AD). Therefore, this study examined the interobserver concordance for AD and non-AD diagnoses between two dermatologists. AD prevalence determined by the self-reported physician diagnoses and the diagnoses determined from the United Kingdom (UK) diagnostic criteria were compared with the diagnoses made by the two dermatologists, using data from a skin health survey.

The Use of Japanese Traditional (Kampo) Medicines Before and During Pregnancy in Japan: The Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study.

Purpose: Japanese traditional (Kampo) medicines are often used for pregnant women in Japan. However, no comprehensive studies have been conducted regarding the self-reported use of these medicines during pregnancy. This study investigated the use of Kampo medicines during pregnancy in Japan using the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study (TMM BirThree Cohort Study).

Prospective associations of screen time at age 2 with specific behavioral subscales at age 3: a cohort study.

Background: We aim to discover which, if any, of the subscales of internalizing and externalizing behavioral problems at age 3 are still associated with screen time (ST) at age 2 after adjusting for behavioral problems scores at age 2.

Methods: This study was conducted under the Tohoku Medical Megabank Project Birth and Three-Generation Cohort Study. Information was gathered prospectively, with 7207 mother-child pairs included in the analysis.

Genome-wide association study based on clustering by obesity-related variables uncovers a genetic architecture of obesity in the Japanese and the UK populations.

Whether all obesity-related variants contribute to the onset of obesity or one or a few variants cause obesity in genetically heterogeneous populations remains obscure. Here, we investigated the genetic architecture of obesity by clustering the Japanese and British populations with obesity using obesity-related factors. In Step-1, we conducted a genome-wide association study (GWAS) with body mass index (BMI) as the outcome for eligible participants.

Association between exposure to atypical antipsychotics during pregnancy and risk of miscarriage.

Objective: To evaluate the association between exposure to atypical antipsychotics during pregnancy and risk of miscarriage.

Material And Methods: This nested case-control study used a large Japanese administrative database. Pregnancy onset and outcomes were estimated using previously reported algorithms, classifying cases as women becoming pregnant between 2013 and 2022 and ending in a miscarriage.

Child-parent associations of hematocrit in trios of Japanese adulthood confirmed by the random family method: The TMM BirThree Cohort Study.

To examine child-parent associations of HCT among Japanese adults and their parents. Factors associated with hematocrit (HCT) were analyzed in 3,574 sons and 7,203 daughters using Pearson's correlation coefficient and Student's t-test. Multiple linear regression analysis, adjusted by the factors identified by univariate analyses and by living with parents, was performed on 242 son-parent trios and 587 daughter-parent trios.