Association between allergen-specific immunoglobulin E sensitization, allergic rhinitis symptoms, and quality of life in school-aged children.

This study aimed to investigate the relationship between allergen-specific immunoglobulin E (IgE) sensitization and allergic rhinitis (AR) symptoms in school-aged children in Japan and to understand the current severity of AR symptoms and the quality of life (QOL) among children with AR. We analyzed data from 8-year-old children who participated in the Yamanashi Adjunct Study of the Japan Environment and Children's Study, focusing on those with complete information on specific IgE levels and AR (1229 for perennial AR [PAR] and 1196 for seasonal AR [SAR]). Sensitization was determined when allergen-specific IgE levels were class 2 (0.

Active social participation extends the healthy life expectancy of older men without spouses in Japan: The Yamanashi healthy active life expectancy cohort study.

This study aimed to evaluate the association between family structure and healthy life expectancy among older Japanese adults, hypothesizing that social participation increases healthy life expectancy more in older men without a spouse than in older women. This study collected data on Healthy Life Expectancy from 541 older adults between 2003 and 2021 from the Healthy Life Expectancy Study, a cohort study of older adults in Yamanashi Prefecture, Japan. The Japanese long-term care insurance system serves as an indicator of a healthy life expectancy.

Association of Japanese cedar pollen sensitization in children with Dermatophagoides pteronyssinus sensitization and maternal sensitization: Insights from the Yamanashi adjunct study within the Japan Environment and Children's Study (JECS).

Background: In recent years, the prevalence of allergic rhinitis (AR) in Japanese children has increased significantly. Multiple sensitization and genetic factors are associated with the development of AR, and moreover, multiply sensitized children are more likely to have parents with AR. This research investigated the association of Japanese cedar pollen (JCP) sensitization in children with Dermatophagoides pteronyssinus (DP) sensitization and with maternal JCP sensitization.

Advanced maternal age elevates the prevalence of hypertensive disorders in women of Japanese, independent of blood pressure: a study from the Japan Environment and Children's study.

Hypertensive disorders of pregnancy (HDP) are leading causes of maternal and infant mortality, and maternal age is a known factor influencing maternal and pediatric outcomes during childbirth. This study aimed to clarify the impact of maternal age-specific blood pressure (BP) and its patterns on the risk of HDP using data from a large nationwide study in Japan. This cohort study (N = 100,949) used data from the Japan Environment and Children's Study.

Continuous Support from the Same Public Health Nurse and Parental Perception and Use of Health Care Services: A Retrospective Observational Study.

Objective: Continuity is considered essential for high-quality maternal and child health care services, but studies to show this effect on parental well-being are still rare. We studied whether receiving support from the same public health nurse has a beneficial effect on parental perceptions of health care professionals and the use of childcare support services.

Methods: Maternal and child health care services were provided by different nurses in a Japanese municipality until March 2019.

Neonatal transfer and duration of hospitalization of newborns as potential risk factors for impaired mother-infant bonding: The Japan Environment and Children's Study.

Background: Currently, there is no consensus regarding the relationship between neonatal transfer and duration of hospitalization in cases of impaired mother-infant bonding (MIB). This study aimed to determine whether neonatal transfer and duration of hospitalization of newborns increase the risk for impaired MIB.

Methods: The MIB Scale was used to assess impaired MIB 1 year after delivery, using data from the Japan Environment and Children's Study.

Abnormality in re-programing of preparatory muscle activity for landing following unpredictable events in patients with anterior cruciate ligament injury.

Background: Anterior cruciate ligament deficiency (ACL-D) causes dysfunction in the quadriceps femoris muscle, and this dysfunction hampers a safe return to sports. However, how the dysfunctional quadriceps femoris muscle affects instantaneous re-programming of motor command in response to unpredictable events remains unknown. This study aimed to examine the effects of ACL-D on re-programming of preparatory muscle activity during an unpredictable landing task.

Association between physical activity duration and depressive symptoms in adolescents: A longitudinal study in a rural city in Japan.

In Japan, physical activity duration in junior high schools is substantially higher than that in elementary schools. Using longitudinal data, this study examined the association between changes in physical activity duration and depressive symptoms in 1225 adolescents without depressive symptoms at baseline (51.2% female) from a rural city in Japan.

Opinions on research involving human embryo models by researchers and the general public.

Rules and ethical considerations regarding research on embryo models have been debated across numerous countries. In this paper, we provide insights from our attitude survey conducted among Japanese researchers, including members of the Japanese Society for Regenerative Medicine, and among the general public residing in Japan, the US, the UK, Canada, and Australia. Our survey revealed that many researchers expressed the need for clear guidelines for embryo model research.

Association of maternal leukocyte, monocyte, and neutrophil counts with hypertensive disorders of pregnancy: the Japan Environment and Children's Study (JECS).

Hypertensive disorders of pregnancy (HDP) increase the risk of preterm births and cesarean delivery. This study aimed to investigate whether maternal blood leukocyte, monocyte, or neutrophil counts in the first trimester are related to the development of HDP. Data were collected from the Japan Environment and Children's Study, a large birth cohort study (n = 38,194) that recruited pregnant women in 15 Regional Centers across Japan (from January 2011 to March 2014).

Teenage and young adult pregnancy and depression: findings from the Japan environment and children's study.

Teenage pregnancy increases the threat of depression because of its many factors. Pregnancy during young adulthood may also have several risk factors for depression compared to older pregnancies. However, data on depression in young adult pregnancies are lacking.

Infantile Peanut Introduction and Peanut Allergy in Regions With a Low Prevalence of Peanut Allergy: The Japan Environment and Children's Study (JECS).

Background: In regions with a high prevalence of peanut allergy (PA), there is a consensus that the introduction of peanuts in early infancy is preventive against the development of PA. However, few studies have investigated whether the introduction of peanuts to infants is associated with PA in regions with a low prevalence of PA, including Japan.

Methods: We used data from 74,240 mother-child pairs who participated in the Japan Environment and Children's Study, a prospective birth cohort recruited between January 2011 and March 2014.

Refractive Error and Axial Length and Their Related Factors in 8-Year-Old Japanese Children: The Yamanashi Adjunct Study of the Japan Environment and Children's Study (JECS).

Purpose: To investigate the distribution of visual acuity, refractive error, and axial length in 8-year-old children who participated in an additional survey in Yamanashi Prefecture of the Japan Environmental Children's Study (hereafter referred to as JECS-Y) conducted from 2019 to 2021.

Participants And Methods: Eight-year-old children who participated in the JECS-Y study were subjected to noncycloplegic measurements of refractive error and axial length. If the uncorrected visual acuity was less than 20/20, the best corrected visual acuity was evaluated in accordance with the autorefraction data.

Mother-child correlation of kidney function: data from the Yamanashi Adjunct Study of Japan Environment and Children's Study (JECS).

Background: Individual variation in kidney function can be affected by both congenital and acquired factors, and kidney function in children is possibly correlated with that in their mothers. However, the mother-child correlation in kidney function remains directly unconfirmed.

Methods: We conducted a cross-sectional study of 655 healthy pairs of 7- or 8-year-old children and their mothers as an adjunct study of a nationwide epidemiological study (Japan Environment and Children's Study).

Maternal dietary fiber intake during pregnancy and child development: the Japan Environment and Children's Study.

Background: Animal studies have shown that maternal low-fiber diets during pregnancy may impair brain development and function in offspring, but this has not been validated by epidemiological studies. The aim of this study was to investigate the link between maternal dietary fiber intake during pregnancy and neurodevelopmental delay in offspring using a large birth cohort.

Methods: A total of 76,207 mother-infant pairs were analyzed using data from the Japan Environment and Children's Study, a nationwide prospective cohort study.