547 results match your criteria: "IUF-Leibniz Research Institute for Environmental Medicine[Affiliation]"

Low income, being without employment, and living alone: how they are associated with cognitive functioning-Results from the German national cohort (NAKO).

Neuropsychol Dev Cogn B Aging Neuropsychol Cogn

December 2024

Institute of Social Medicine, Occupational Health and Public Health (ISAP), Medical Faculty, University of Leipzig, Leipzig, Germany.

Aim was to investigate to what extent cognitive functioning differs by three socioeconomic conditions: low income, being without employment, and living alone. A total of N = 158,144 participants of the population-based German National Cohort (NAKO) provided data on socioeconomic conditions and completed cognitive tests. Multivariable confounder-adjusted regression analyses indicated that cognitive functioning was lower in those with low income (b = -0.

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The workshop titled State of the Science on Assessing Developmental Neurotoxicity Using New Approach Methods was co-organized by University of Maryland's Joint Institute for Food Safety and Applied Nutrition (JIFSAN) and the U.S. Food and Drug Administration's (FDA) Center for Food Safety and Applied Nutrition (CFSAN; now called the Human Foods Program), and was hosted by FDA in College Park, MD on November 14-15, 2023.

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For many years, polybrominated diphenyl ethers (PBDEs) were used as flame retardants in a large number of consumer products. Even though international law meanwhile prohibits the production and usage of PBDEs, these persistent and bioaccumulative chemicals still leak into the environment, and are frequently detected in wildlife and humans. Population-based studies reveal positive correlations between human PBDE exposure and various adverse health effects, emphasizing that a better understanding of the mode of action of these polybrominated chemicals is urgently needed.

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The effects of ultrafine particle (UFP) inhalation on neurodevelopment, especially during critical windows of early life, remain largely unexplored. The specific time windows during which exposure to UFP might be the most detrimental remain poorly understood. Here, we studied early-life exposure to clean ultrafine carbonaceous particles (UFP) and neurodevelopment and central nervous system function in offspring.

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Growing evidence suggests that somatic mutations may be a major cause of the aging process. However, it remains to be tested whether the predictions of the theory also apply to species with longer life spans than humans. is a genus of freshwater polyps with remarkable regeneration abilities and a potentially unlimited life span under laboratory conditions.

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Exploring the genetics of airflow limitation in lung function across the lifespan - a polygenic risk score study.

EClinicalMedicine

September 2024

Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Sjukhusbacken 10, 118 83, Stockholm, Sweden.

Article Synopsis
  • Chronic obstructive pulmonary disease (COPD) can be influenced by genetic factors and may stem from reduced lung growth during childhood, leading to lower lung function throughout life.
  • A polygenic risk score (PRS) was calculated using data from a large genome-wide association study and tested for its correlation with lung function in individuals aged 4-50 from multiple research cohorts.
  • Results indicated that higher PRS scores were associated with significantly lower lung function, measured by key indicators, starting from childhood and continuing into adulthood, regardless of smoking, sex, or asthma diagnosis.
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The safety and developmental neurotoxicity (DNT) potential of chemicals remain critically understudied due to limitations of current in vivo testing guidelines, which are low throughput, resource-intensive, and hindered by species differences that limit their relevance to human health. To address these issues, robust New Approach Methodologies (NAMs) using deeply characterized cell models are essential. This study presents the comprehensive transcriptomic characterization of two advanced human-induced pluripotent stem cell (hiPSC)-derived models: a 2D adherent and a 3D neurosphere model of human neural progenitor cells (hiNPCs) differentiated up to 21 days.

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There is no doubt that global warming, with its extreme heat events, is having an increasing impact on human health. Heat is not independent of ambient temperature but acts synergistically with relative humidity (RH) to increase the risk of several diseases, such as cardiovascular and pulmonary diseases. Although the skin is the organ in direct contact with the environment, it is currently unknown whether skin health is similarly affected.

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Genetic Prediction Modeling in Large Cohort Studies via Boosting Targeted Loss Functions.

Stat Med

December 2024

Institute of Medical Biometry, Informatics and Epidemiology, Medical Faculty, University of Bonn, Bonn, Germany.

Article Synopsis
  • - Polygenic risk scores (PRS) are used to predict traits from genetic data based on common genetic variants, typically requiring methods suitable for large-scale, high-dimensional datasets.
  • - The snpboost algorithm has been introduced to estimate PRS using individual genotype data through multivariable regression, effectively addressing the complexities of high-dimensional data analysis.
  • - Recent advancements in snpboost now allow for the application of alternative loss functions, enabling more nuanced analyses such as time-to-event and count data, which improves risk stratification and quantifies prediction uncertainty for individual patients.
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Vδ1 T cells are a subpopulation of γδT cells found in human dermis. Much less is known regarding their role and function in skin health and disease than regarding the roles of murine skin-resident γδT cells. In this study, we report the successful integration of Vδ1 T cells into long-term fibroblast-derived matrix skin equivalents.

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Article Synopsis
  • - Human induced pluripotent stem cells (iPSCs) offer significant research potential, but current testing methods for pluripotency are inconsistent and rely on unclear markers.
  • - The study employs long-read nanopore transcriptome sequencing to identify 172 genes related to specific cell states, validating 12 as unique markers for pluripotent and differentiated fates, like endoderm and mesoderm.
  • - A new machine learning-based scoring system called "hiPSCore" is developed to effectively classify cell states and predict their potential in forming specialized cells and organoids, improving iPSC assessment by minimizing time and resource use.
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Optimizing Skin Surface Metabolomics: A Comprehensive Evaluation of Sampling Methods, Extraction Solvents, and Analytical Techniques.

J Invest Dermatol

September 2024

Greater Bay Area Institute of Precision Medicine (Guangzhou), School of Life Sciences, Fudan University, Shanghai, China. Electronic address:

Characterizing the metabolite fingerprint from the skin surface provides invaluable insights into skin biology and microbe-host interactions. To ensure data accuracy and reproducibility, it is essential to develop standard operating procedures for skin surface metabolomics. However, there is a notable lack of studies in this area.

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Hormone signaling plays an essential role during fetal life and is vital for brain development. Endocrine-disrupting chemicals can interfere with the hormonal milieu during this critical time-period, disrupting key neurodevelopmental processes. Hence, there is a need for the development of assays that evaluate developmental neurotoxicity (DNT) induced by an endocrine mode of action.

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Article Synopsis
  • Cockayne Syndrome B (CSB) is a genetic disorder that can lead to brain issues such as small head size (microcephaly), learning difficulties (intellectual disability), and loss of protective nerve coverings (demyelination).
  • Research using stem cell models from CSB patients reveals that these issues arise from problems like poor cell movement, altered brain signaling related to GABA, and immature support cells called oligodendrocytes.
  • Treatments using HDAC inhibitors show promise in improving cell migration and oligodendrocyte development, which may help alleviate some symptoms of CSB.
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Secondary prevention of skin cancer consists in early detection of malignant lesions through patients' mole self-examination and medical examination. The objective of this study was to assess the self-reported  frequency of mole examination in a large, representative sample of the adult general population of 17 countries from all continents. Of a total of 17,001 participants, 4.

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Objectives: To investigate the associations of physical activity (PA) and sedentary behaviour in early childhood with asthma and reduced lung function in later childhood within a large collaborative study.

Design: Pooling of longitudinal data from collaborating birth cohorts using meta-analysis of separate cohort-specific estimates and analysis of individual participant data of all cohorts combined.

Setting: Children aged 0-18 years from 26 European birth cohorts.

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Increased Risk of Influenza Infection During Cold Spells in China: National Time Series Study.

JMIR Public Health Surveill

August 2024

Department of Epidemiology, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, China.

Background: Studies have reported the adverse effects of cold events on influenza. However, the role of critical factors, such as characteristics of cold spells, and regional variations remain unresolved.

Objective: We aimed to systematically evaluate the association between cold spells and influenza incidence in mainland China.

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Phenolic benzotriazole UV stabilizers (BUV) are commonly used additives in synthetic polymeric products, which constantly leak into the environment. They are persistent and bioaccumulative, and have been detected not only in fish, birds, and sea mammals, but also in humans, including breast milk samples. Several authorities including the European Chemical Agency already consider some BUVs as Substances of Very High Concern in need of further information, e.

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Although studies have reported the modification effect of air pollutants on heat-related health risk, little is known on the modification effect among various particulate matter with different particle size on mortality. We aimed to investigate whether the associations of hot temperatures with daily mortality were modified by different air pollutant levels in Shandong Province, China. Daily data of air pollutants, meteorological factors, and mortality of 1,822 subdistricts in Shandong province from 2013 to 2018 were collected.

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Objectives: The risk of Post-COVID-19 condition (PCC) under hybrid immunity remains unclear.

Methods: Using data from the German National Cohort (NAKO Gesundheitsstudie), we investigated risk factors for self-reported post-infection symptoms (any PCC is defined as having at least one symptom, and high symptom burden PCC as having nine or more symptoms).

Results: Sixty percent of 109,707 participants reported at least one previous SARS-CoV-2 infection; 35% reported having had any symptoms 4-12 months after infection; among them 23% reported nine or more symptoms.

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Association between PM from a coal mine fire and FeNO concentration 7.5 years later.

BMC Pulm Med

June 2024

School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, 3004, Australia.

Background And Aim: There are few long-term studies of respiratory health effects of landscape fires, despite increasing frequency and intensity due to climate change. We investigated the association between exposure to coal mine fire PM and fractional exhaled nitric oxide (FeNO) concentration 7.5 years later.

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