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Exposure to Secondhand Cannabis Smoke Among Children.
JAMA Netw Open
January 2025
Herbert Wertheim School of Public Health and Human Longevity Science, University of California, San Diego.
Importance: The degree that in-home cannabis smoking can be detected in the urine of resident children is unclear.
Objective: Test association of in-home cannabis smoking with urinary cannabinoids in children living at home.
Design, Setting, And Participants: This cross-sectional study used baseline data from Project Fresh Air, a 2012-2016 randomized clinical trial to reduce fine particulate matter levels.
Symmetry facilitated the evolution of heterospecificity and high-order stoichiometry in vertebrate hemoglobin.
Proc Natl Acad Sci U S A
January 2025
Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637.
Many proteins form paralogous multimers-molecular complexes in which evolutionarily related proteins are arranged into specific quaternary structures. Little is known about the mechanisms by which they acquired their stoichiometry (the number of total subunits in the complex) and heterospecificity (the preference of subunits for their paralogs rather than other copies of the same protein). Here, we use ancestral protein reconstruction and biochemical experiments to study historical increases in stoichiometry and specificity during the evolution of vertebrate hemoglobin (Hb), an αβ heterotetramer that evolved from a homodimeric ancestor after a gene duplication.
View Article and Find Full Text PDFChemoprotective Effect of Myrrhone against Diethylnitrosamine and Ferric Nitrile Induced Renal Cancer via Alteration of HO-1/Nrf2 and TRL4/NF-κB Signaling Pathway.
Dokl Biochem Biophys
January 2025
Affiliated Hospital of Hebei University, 071000, Baoding City, Hebei Province, China.
Unlabelled: . Renal cell carcinoma (RCC) is the most prevalent form of kidney cancer and is the primary malignancy affecting the genitourinary system. It represents the majority of kidney cancer cases and is distinguished by its aggressive nature and high mortality rate.
View Article and Find Full Text PDFUnelongated Stems are an Active Nitrogen-Fixing Site in Rice Stems Supported by Both Sugar and Methane Under Low Nitrogen Conditions.
Rice (N Y)
January 2025
Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi, 464-8601, Japan.
Enhancing nitrogen (N) fixation in rice plants can reduce N fertilizer application and contribute to sustainable rice production, particularly under low-N conditions. However, detailed microbial and metabolic characterization of N fixation in rice stems, unlike in the well-studied roots, has not been investigated. Therefore, the aim of this study was to determine the active N-fixing sites, their diazotroph communities, and the usability of possible carbon sources in stems compared with roots.
View Article and Find Full Text PDFFecal carriage of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli in South American camelids and biosecurity practices among farms in northern Italy.
Vet Res Commun
January 2025
Department of Veterinary Medicine and Animal Sciences, University of Milan, Lodi, 26900, Italy.
South American camelids (SACs), particularly llamas (Lama glama) and alpacas (Vicugna pacos) are gaining popularity in Europe. Initially valued for their fiber and land management capabilities, these animals are now also kept for animal therapy, outdoor activities, and as companion animals. Despite their close interactions with humans and other animals, there is limited research on the transmission of microbes or antimicrobial resistance genes from SACs.
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