1. The Exposure and Health Examination Survey mother-child(ren) cohort profile : applying the exposome to the comprehension of child’s health and development joining singletons and twins dataMohamed-Yassir Errahmani, Sara Maio, Sandra Baldacci, Neža Palir, Darja Mazej, Janja Snoj Tratnik, Ingrid Falnoga, Milena Horvat, Isabella Annesi-Maesano, 2025, izvirni znanstveni članek Povzetek: he Exposure and Health Examination Survey (EXHES) cohort aims to elucidate the impact of environmental exposures (the external exposome) and their biological markers (the internal exposome) on childhood health conditions, asthma and allergies, obesity, and cognitive development in particular. Utilizing singletons and twins helped differentiate environmental effects from genetic influences due to the shared genetic background in twins. The EXHES cohort includes 2356 mother-child pairs across 10 European countries, comprising 1945 singletons and 411 twins, with data collected during the crucial first 1000 days of life. Data were gathered through epidemiological questionnaires and biomarkers, including blood, urine, hair, and breast milk from mothers, and cord blood, placenta, and cord tissues from children. Findings confirm that twin pregnancies are linked with increased risks of pregnancy complications, preterm birth, cesarean delivery, low birthweight, maternal health problems during pregnancy and a lower risk of macrosomia. Moreover, mothers of twins were more likely to have asthma, while higher maternal education was associated with a lower likelihood of twin births. The EXHES cohort provides a robust framework to be adopted in other studies for comparing singletons and twins to better understand how the exposome affects early child development and health outcomes. This approach offers new insights into the interplay between environmental and biological factors in shaping long-term health.
Ključne besede: environmental exposure, biomarkers
Objavljeno v DiRROS: 18.02.2026; Ogledov: 194; Prenosov: 85
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2. Associations of essential and non-essential trace elements’ levels in the blood, serum, and urine in women with premature ovarian insufficiencyTina Kek, Ksenija Geršak, Nataša Karas Kuželički, Dominika Celar Šturm, Darja Mazej, Janja Snoj Tratnik, Ingrid Falnoga, Milena Horvat, Irma Virant-Klun, 2025, izvirni znanstveni članek Povzetek: Premature ovarian insufficiency (POI) is poorly understood, with causes identified in only 25% of cases. Emerging evidence suggests links between trace elements (TEs) and POI. This study is the first to compare concentrations of manganese (Mn), copper (Cu), zinc (Zn), selenium (Se), molybdenum (Mo), arsenic (As), cadmium (Cd), mercury (Hg), and lead (Pb) across urine, serum, and whole blood in women with POI compared to healthy controls (HC), aiming to explore their distribution and potential associations with POI. This cross-sectional-case-control study enrolled 81 participants (40 POI patients and 41 healthy controls) at the University Medical Centre Ljubljana, Slovenia. Blood and urine samples were collected to quantify basic biochemical parameters using standard clinical chemistry methods and concentrations of Mn, Cu, Zn, Se, Mo, As, Cd, Hg, and Pb using inductively coupled plasma-mass spectrometry (ICP-MS). Participants also completed questionnaires on socio-demographics, medical history, lifestyle, and nutrition. Data was analyzed using the Mann–Whitney U test, Student's t-tests, Fisher exact test, logistic regression models adjusted on body mass index (BMI), age, hematocrit, and Kendall's tau correlation. Women with POI had significantly higher BMI and red blood cell (RBC) indices, including hemoglobin, hematocrit, and red cell distribution width (RDW), compared to controls. A larger proportion of POI patients resided in rural agricultural areas. Liver and kidney function assessments showed no significant differences between the groups. Adjusted models revealed that POI patients had significantly lower urinary levels of Cu, Zn, Se, Mo, Cd, Hg, and Pb than controls, while whole blood Mn levels were higher. Serum Cu levels were significantly elevated in POI patients, whereas Pb, Cd, and Hg were lower. No significant differences were observed for As. Correlation analysis showed several strong to moderate associations among TEs across biofluids, but only weak correlations were found between TEs and demographic or biochemical factors. This study suggests potential associations between TEs and POI in women. Notably, most TEs (Zn, Se, Cu, Mo, Cd, Hg, Pb) were significantly lower in the urine of the POI group, while Cu, Cd, Hg, and Pb showed significant differences in both urine and serum.
Ključne besede: premature ovarian insufciency, essential, non-essential trace elements, biofuids, reproductive health
Objavljeno v DiRROS: 12.11.2025; Ogledov: 351; Prenosov: 154
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3. Arsenic in sediments, soil and plants in a remediated area of the Iron Quadrangle, Brazil, and its accumulation and biotransformation in Eleocharis geniculataMaria-Angela Menezes, Ingrid Falnoga, Zdenka Šlejkovec, Radojko Jaćimović, Nilton Couto, Eleonora Deschamps, Jadran Faganeli, 2020, izvirni znanstveni članek Povzetek: Since arsenic (As) exposure is largely due to geochemical contamination, this study focused on the remediated area of Santana do Morro, a district of Santa Bárbara, Minas Gerais, Brazil, which was previously contaminated with As due to gold mining. Total As concentrations in sediment, soil and plants were determined, next to As species, anionic arsenic compounds As(III), As(V), monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA), in plants samples. Total As concentrations in soil and sediments were slightly elevated (16-18 µg g-1) and most of the plants contained low levels of As (< 1 µg g-1). The exception was a native plant Eleocharis geniculata (L.) which contained elevated levels of As (4 µg g-1). The exposure of this plant to As under controlled conditions (hydroponics) indicated its possible tolerance to elevated As levels and suggesting its potential use in phytomonitoring of As-contaminated sites. This plant is able to metabolize arsenate to arsenite and contained MMA and DMA, both in its natural habitat and under controlled conditions.
Ključne besede: arsenic species, soil, sediments, plants, Cyperacea, Iron Quadrangle
Objavljeno v DiRROS: 22.07.2024; Ogledov: 1055; Prenosov: 546
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