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Association of Polycystic Ovarian Syndrome with Endothelial Health, Cardiovascular Risk, and Cellular Aging.
Fertil Steril
January 2025
Division of Reproductive Endocrinology & Infertility, University of California, San Francisco.
Objective: To study measures of endothelial health, cardiovascular risk, and cellular aging between PCOS patients and a reproductive age normative cohort.
Design: Cross-sectional study.
Subjects: Community-based PCOS patients and a normative ovarian aging cohort as controls, aged 45 or younger at the time of evaluation.
Association between exposure to pyrethroids and chlorpyrifos at age 5 years and IQ at age 7 years among children from the Odense Child Cohort, a prospective birth cohort study.
Environ Res
January 2025
Department of Clinical Pharmacology, Pharmacy and Environmental Medicine, Institute of Public Health, University of Southern Denmark, Odense, Denmark; Hans Christian Andersen Children's Hospital, Odense University Hospital, Odense, Denmark; OPEN Patient Data Explorative Network, Odense, Denmark.
Background: Over the past decade, the use of organophosphate insecticides including chlorpyrifos has faced increasing restrictions due to health concerns, leading to a rise in use of pyrethroids. Concerns about neurodevelopmental insults following pyrethroids exposure exist, but few studies have examined the long-term effects of childhood exposure to chlorpyrifos and pyrethroids on IQ.
Objective: To investigate the prospective associations between pyrethroids and chlorpyrifos exposure at age 5 years and IQ scores assessed at age 7.
Advances in our understanding of the estrous cycle and applications for improving targeted reproductive management in livestock.
Domest Anim Endocrinol
January 2025
USDA, ARS, U.S. Meat Animal Research Center, Clay Center, NE, USA.
The scientific discipline of endocrinology has been invaluable to our understanding of the estrous cycle. In the second half of the twentieth century the development of immunoassay technologies provided a rapid and sensitive method to quantify circulating concentrations of reproductive hormones and relate them to stage of the estrous cycle and physiological status of the animal. Ovarian ultrasonography provided the ability to track the growth and regression of ovarian structures within the same animal across the estrous cycle in real time and, in combination with hormonal profiling, accurately identify mechanisms regulating the estrous cycle and early pregnancy.
View Article and Find Full Text PDFNanoscale Structure and Interfacial Electrochemical Reactivity of Moiré-Engineered Atomic Layers.
Acc Chem Res
January 2025
Department of Chemistry, University of California, Berkeley, California 94720, United States.
ConspectusThe electronic properties of atomically thin van der Waals (vdW) materials can be precisely manipulated by vertically stacking them with a controlled offset (for example, a rotational offset─i.e., twist─between the layers, or a small difference in lattice constant) to generate moiré superlattices.
View Article and Find Full Text PDFDetermination of the carrier temperature in weakly confined semiconductor nanocrystals using time-resolved optical spectroscopy.
Nanoscale
January 2025
Physics and Chemistry of Nanostructures, Ghent University, 9000 Ghent, Belgium.
Many applications of nanocrystals rely on their use in light detection and emission. In recent years, nanocrystals with more relaxed carrier confinement, including so-called 'bulk' and 2D implementations, have made their stake. In such systems, the charge carriers generated after (photo-)excitation are spread over a semi-continuous density of states, behaviour controlled by the carrier temperature .
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