Search results for: Yasuaki Saijo

Items from 1 to 20 out of 58 results

article

Relations of mold, stove, and fragrance products on childhood wheezing and asthma: A prospective cohort study from the Japan Environment and Children's Study

Yasuaki Saijo, Eiji Yoshioka, Yukihiro Sato, Hiroshi Azuma, more

This prospective cohort study aimed to examine the associations between mold growth, type of stoves, and fragrance materials and early childhood wheezing and asthma, using data from the Japan Environment and Children's Study. Mold growth at home, usage of kerosene/gas stove, wood stove/fireplace, and air freshener/deodorizer were surveyed using a questionnaire at 1.5‐year‐old, and childhood wheezing...

article

Effects of low-level prenatal exposure to dioxins on cognitive development in Japanese children at 42months

Tamiko Ikeno, Chihiro Miyashita, Sonomi Nakajima, Sumitaka Kobayashi, more

Science of The Total Environment > 2018 > 618 > C > 1423-1430

Prenatal exposure to polychlorinated dibenzo-p-dioxins (PCDDs) or polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dioxin-like compounds [DLCs]) through environmental chemicals may affect the neurodevelopment of children. In our previous study, an inverse association was observed between prenatal DLCs and neurodevelopment of infants aged 6months in both sexes. However,...

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Sex-specific differences in effect of prenatal exposure to dioxin-like compounds on neurodevelopment in Japanese children: Sapporo cohort study

Sonomi Nakajima, Yasuaki Saijo, Chihiro Miyashita, Tamiko Ikeno, more

Environmental Research > 2017 > 159 > C > 222-231

Consistent reports are not available on the effects of dioxin-like polychlorinated biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins (PCDD)/ polychlorinated dibenzofurans (PCDF) (dioxin-like compounds [DLCs]) on child neurodevelopment. Further, the effect of background-level exposure to individual DLC isomers is not known.We carried out the Sapporo cohort study to evaluate the effect of prenatal...

article

Association of premorbid personality with behavioral and psychological symptoms in dementia with Lewy bodies: Comparison with Alzheimer's disease patients

Kazuki Tabata, Yasuaki Saijo, Fumiyoshi Morikawa, Juichiro Naoe, more

Psychiatry and Clinical Neurosciences > 71 > 6 > 409 - 416

Aim The aim of this study was to elucidate the relation between premorbid personality traits and behavioral and psychological symptoms in dementia (BPSD) in dementia with Lewy bodies (DLB) and Alzheimer's disease (AD) patients. Methods Forty‐one DLB patients and 98 AD patients were assessed for BPSD using the Neuropsychiatric Inventory (NPI). Each patient's midlife personality traits were rated...

article

A prospective cohort study of insomnia and chronic kidney disease in Japanese workers

Sachiko Sasaki, Eiji Yoshioka, Yasuaki Saijo, Akira Bannai, more

Sleep and Breathing > 2018 > 22 > 1 > 257-265

Purpose The role of insomnia in chronic kidney disease (CKD) is controversial. To date, there have been no prospective studies investigating insomnia, CKD and the effect of shift work. We assessed insomnia and CKD risk in a prospective, occupational cohort study. Methods A total of 3600 participants with normal kidney function were followed for an average of 4.4 years. Insomnia was assessed using...

article

An analysis of secular trends in method-specific suicides in Japan, 1950–1975

Eiji Yoshioka, Yasuaki Saijo, Ichiro Kawachi

Population Health Metrics > 2017 > 15 > 1 > 1-9

Background In Japan, a dramatic rise in suicide rates was observed in the 1950s, especially among the younger population, and then the rate decreased rapidly again in the 1960s. The aim of this study was to assess secular trends in method-specific suicides by gender and age in Japan between 1950 and 1975. We paid special attention to suicides by poisoning (solid and liquid substances), and their contribution...

article

Social support and its interrelationships with demand–control model factors on presenteeism and absenteeism in Japanese civil servants

Yasuaki Saijo, Eiji Yoshioka, Yoshihiko Nakagi, Yasuyuki Kawanishi, more

International Archives of Occupational and Environmental Health > 2017 > 90 > 6 > 539-553

Objectives To elucidate the impact of social support and its interrelations with other demand–control–support (DCS) model factors on presenteeism and absenteeism, and to determine which DCS factors were most influential. Methods Questionnaires from 2535 local government employees were analyzed. The Brief Job Stress Questionnaire (BJSQ) was used to assess DCS factors including job demand, job control,...

article

Functional characteristics of left ventricular synchronization via right ventricular outflow-tract pacing detected by two-dimensional strain echocardiography

Yasutaka Hirayama, Yuichiro Kawamura, Nobuyuki Sato, Tatsuya Saito, more

Journal of Arrhythmia > 2017 > 33 > 1 > 28-34

Recently, due to the detrimental effects on the ventricular function associated with right ventricular apical (RVA) pacing, right ventricular septal (RVS) pacing has become the preferred pacing method. However, the term RVS pacing refers to both right ventricular outflow-tract (RVOT) and mid-septal (RVMS) pacing, leading to a misinterpretation of the results of clinical studies. The purpose of this...

article

Late Gadolinium Enhancement on Cardiac MRI Correlates with QT Dynamicity Represented by QT/RR Relationship in Patients with Ventricular Arrhythmias

Naka Sakamoto, Nobuyuki Sato, Ahmed Karim Talib, Eitaro Sugiyama, more

Annals of Noninvasive Electrocardiology > 21 > 2 > 126 - 135

BackgroundThe distribution of late gadolinium enhancement (LGE) on the cardiac MRI (CMR) indicates myocardial fibrosis and provides information of possible reentry substrates. QT dynamicity reflecting repolarization abnormalities has gained attention as a potential prognostic predictive factor. ObjectiveTo clarify the correlation between the LGE distribution on CMR and QT dynamicity represented by...

article

Insight into specific pro-arrhythmic triggers in Brugada and early repolarization syndromes: results of long-term follow-up

Ahmed Karim Talib, Nobuyuki Sato, Takuya Myojo, Eitaro Sugiyama, more

Heart and Vessels > 2016 > 31 > 12 > 2035-2044

The pro-arrhythmic triggers in Brugada and early repolarization syndromes (BrS, ERS) have not been analyzed systematically except for case reports. We clinically investigated the circumstances which precede/predispose to arrhythmic events in these syndromes during long-term follow-up. A detailed history from the patients/witnesses was taken to investigate the antecedent events in the last few hours...

article

Spatial and temporal evolution of the epidemic of charcoal-burning suicide in Japan

Eiji Yoshioka, Yasuaki Saijo, Ichiro Kawachi

Social Psychiatry and Psychiatric Epidemiology > 2016 > 51 > 6 > 857-868

Purpose An epidemic of carbon monoxide poisoning suicide by burning charcoal occurred in Hong Kong and Taiwan. An epidemic also emerged in Japan from February 2003 and resulted in an increase of 10–20 % in overall suicide rates in younger adults (aged <45 years) in the mid-2000s. We investigated the spatial and temporal evolution of the epidemic to assess its impact on the epidemiology of suicide...

article

Demographic, behavioral, dietary, and socioeconomic characteristics related to persistent organic pollutants and mercury levels in pregnant women in Japan

Chihiro Miyashita, Seiko Sasaki, Yasuaki Saijo, Emiko Okada, more

Chemosphere > 2015 > 133 > Complete > 13-21

Persistent organic pollutants and mercury are known environmental chemicals that have been found to be ubiquitous in not only the environment but also in humans, including women of reproductive age. The purpose of this study was to evaluate the association between personal lifestyle characteristics and environmental chemical levels during the perinatal period in the general Japanese population. This...

article

Late gadolinium enhancement of cardiac magnetic resonance imaging indicates abnormalities of time-domain T-wave alternans in hypertrophic cardiomyopathy with ventricular tachycardia

Naka Sakamoto, Nobuyuki Sato, Kensuke Oikawa, Ahmed Karim Talib, more

Heart Rhythm > 2015 > 12 > 8 > 1747-1755

The presence of myocardial scar detected by late gadolinium enhancement (LGE) on cardiac magnetic resonance (CMR) imaging has been described as a good independent predictor of mortality in patients with hypertrophic cardiomyopathy (HCM). Time-domain T-wave alternans (TWA) is also a potential predictor of cardiac mortality in patients with left ventricular dysfunction.The purpose of this study was...

article

Late gadolinium enhancement on cardiac magnetic resonance represents the depolarizing and repolarizing electrically damaged foci causing malignant ventricular arrhythmia in hypertrophic cardiomyopathy

Naka Sakamoto, Yuichiro Kawamura, Nobuyuki Sato, Asami Nimura, more

Heart Rhythm > 2015 > 12 > 6 > 1276-1284

The presence of a myocardial scar detected by late gadolinium enhancement (LGE) on cardiac magnetic resonance (CMR) has been described as a predictor of all-cause mortality in hypertrophic cardiomyopathy (HCM). However, the detailed spatial relationship between LGE site and electrical abnormality is unclear in high-risk HCM with malignant arrhythmia.The purpose of this study was to elucidate the detailed...

article

Synergistic interaction between job control and social support at work on depression, burnout, and insomnia among Japanese civil servants

Yasuaki Saijo, Shigeru Chiba, Eiji Yoshioka, Yoshihiko Nakagi, more

International Archives of Occupational and Environmental Health > 2015 > 88 > 2 > 143-152

Purpose To elucidate whether low job control and low social support at work have synergistic interaction on mental health. The synergistic interaction was also analyzed after stratification by high and low job demands. Methods Participants were 2,121 local government employees in Asahikawa city, Japan. The Brief Job Stress Questionnaire was used to assess job demands, job control, and social support...

article

Repolarization Characteristics in Early Repolarization and Brugada Syndromes: Insight into an Overlapping Mechanism of Lethal Arrhythmias

AHMED KARIM TALIB, NOBUYUKI SATO, NAOKO KAWABATA, EITARO SUGIYAMA, more

Journal of Cardiovascular Electrophysiology > 25 > 12 > 1376 - 1384

IntroductionWe reported impaired QT‐rate dependence in early repolarization syndrome (ERS); however, contemporary data have shown peak incidence of sudden cardiac death (SCD) in ERS and Brugada syndrome (BrS) at mid‐night and early morning. Taken together, we analyzed the nocturnal QT‐rate dependence in both syndromes. Methods and ResultsA total of 172 subjects were enrolled: 11 ERS, 11 BrS patients,...

article

Biomonitoring of mercury, cadmium, and lead exposure in Japanese children: a cross-sectional study

Cimi Ilmiawati, Takahiko Yoshida, Toshihiro Itoh, Yoshihiko Nakagi, more

Environmental Health and Preventive Medicine > 2015 > 20 > 1 > 18-27

Objectives To measure current Hg, Cd, and Pb exposure in Japanese children, and to estimate dietary intakes of foods responsible for high body burden. Methods Blood, hair, and urine samples were collected from 9 to 10-year-old 229 children in Asahikawa and measured for Hg, Cd, and Pb in these matrices. Diet history questionnaire was used to estimate intake of marine foods and other food items. Hg...

article

Exposure to house dust phthalates in relation to asthma and allergies in both children and adults

Yu Ait Bamai, Eiji Shibata, Ikue Saito, Atsuko Araki, more

Science of The Total Environment > 2014 > 485-486 > C > 153-163

Although an association between exposure to phthalates in house dust and childhood asthma or allergies has been reported in recent years, there have been no reports of these associations focusing on both adults and children. We aimed to investigate the relationships between phthalate levels in Japanese dwellings and the prevalence of asthma and allergies in both children and adult inhabitants in a...

article

Effects of work burden, job strain and support on depressive symptoms and burnout among Japanese physicians

Yasuaki Saijo, Shigeru Chiba, Eiji Yoshioka, Yasuyuki Kawanishi, more

International Journal of Occupational Medicine and Environmental Health > 2014 > 27 > 6 > 980-992

Objectives Days off, on call, night duty, working hours and job stress can affect physicians’ mental health, and support from supervisors and co-workers may have a buffering effect. This study elucidates whether job strain and job factors affect physicians’ mental health, and whether support from supervisors and co-workers has a protective effect on their mental health. Material and Methods The...

article

Effects of work burden, job strain and support on depressive symptoms and burnout among Japanese physicians

Yasuaki Saijo, Shigeru Chiba, Eiji Yoshioka, Yasuyuki Kawanishi, more

International Journal of Occupational Medicine and Environmental Health > 2014 > 27 > 6 > 980-992

Objectives: Days off, on call, night duty, working hours and job stress can affect physicians’ mental health, and support from supervisors and co-workers may have a buffering effect. This study elucidates whether job strain and job factors affect physicians’ mental health, and whether support from supervisors and co-workers has a protective effect on their mental health. Material and Methods: The...

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INFONA - science communication portal

Search results for: Yasuaki Saijo

Relations of mold, stove, and fragrance products on childhood wheezing and asthma: A prospective cohort study from the Japan Environment and Children's Study

Effects of low-level prenatal exposure to dioxins on cognitive development in Japanese children at 42months

Sex-specific differences in effect of prenatal exposure to dioxin-like compounds on neurodevelopment in Japanese children: Sapporo cohort study

Association of premorbid personality with behavioral and psychological symptoms in dementia with Lewy bodies: Comparison with Alzheimer's disease patients

A prospective cohort study of insomnia and chronic kidney disease in Japanese workers

An analysis of secular trends in method-specific suicides in Japan, 1950–1975

Social support and its interrelationships with demand–control model factors on presenteeism and absenteeism in Japanese civil servants

Functional characteristics of left ventricular synchronization via right ventricular outflow-tract pacing detected by two-dimensional strain echocardiography

Late Gadolinium Enhancement on Cardiac MRI Correlates with QT Dynamicity Represented by QT/RR Relationship in Patients with Ventricular Arrhythmias

Insight into specific pro-arrhythmic triggers in Brugada and early repolarization syndromes: results of long-term follow-up

Spatial and temporal evolution of the epidemic of charcoal-burning suicide in Japan

Demographic, behavioral, dietary, and socioeconomic characteristics related to persistent organic pollutants and mercury levels in pregnant women in Japan

Late gadolinium enhancement of cardiac magnetic resonance imaging indicates abnormalities of time-domain T-wave alternans in hypertrophic cardiomyopathy with ventricular tachycardia

Late gadolinium enhancement on cardiac magnetic resonance represents the depolarizing and repolarizing electrically damaged foci causing malignant ventricular arrhythmia in hypertrophic cardiomyopathy

Synergistic interaction between job control and social support at work on depression, burnout, and insomnia among Japanese civil servants

Repolarization Characteristics in Early Repolarization and Brugada Syndromes: Insight into an Overlapping Mechanism of Lethal Arrhythmias

Biomonitoring of mercury, cadmium, and lead exposure in Japanese children: a cross-sectional study

Exposure to house dust phthalates in relation to asthma and allergies in both children and adults

Effects of work burden, job strain and support on depressive symptoms and burnout among Japanese physicians

Effects of work burden, job strain and support on depressive symptoms and burnout among Japanese physicians

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