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Guanine- and cytosine-rich nucleic acid sequences have the potential to form secondary structures such as G-quadruplexes and i-motifs, respectively. We show that stabilization of G-quadruplexes using small molecules destabilizes the i-motifs, and vice versa, indicating these gene regulatory controllers are interdependent in human cells. This has important implications as these structures are predominately considered as isolated structural targets for therapy, but their interdependency highlights the interplay of both structures as an important gene regulatory switch.
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http://dx.doi.org/10.1021/jacs.0c11708 | DOI Listing |
PLoS One
September 2025
Department of Maths and Computer Science, Faculty of Science, University of Kinshasa, Kinshasa, The Democratic Republic of the Congo.
Reliable and timely fault diagnosis is critical for the safe and efficient operation of industrial systems. However, conventional diagnostic methods often struggle to handle uncertainties, vague data, and interdependent multi-criteria parameters, which can lead to incomplete or inaccurate results. Existing techniques are limited in their ability to manage hierarchical decision structures and overlapping information under real-world conditions.
View Article and Find Full Text PDFmSphere
September 2025
Influenza Division, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
The ferret model is widely used to study influenza A viruses (IAVs) isolated from multiple avian and mammalian species, as IAVs typically replicate in the respiratory tract of ferrets without the need for prior host adaptation. During standard IAV risk assessments, tissues are routinely collected from ferrets at a fixed time point post-inoculation to assess the capacity for systemic spread. Here, we describe a data set of virus titers in tissues collected from both respiratory tract and extrapulmonary sites 3 days post-inoculation from over 300 ferrets inoculated with more than 100 unique IAVs (inclusive of H1, H2, H3, H5, H7, and H9 IAV subtypes, both mammalian and zoonotic origin).
View Article and Find Full Text PDFJ Res Adolesc
September 2025
Department of Educational Psychology, Philipps-University Marburg, Marburg, Germany.
Conditional regard defined as adolescents' perception that parents' affection hinges upon whether they meet parental expectations affects their skills to build stable and sustainable relationships. However, its role in sibling relationships remains unexplored. This study investigates how conditional regard relates to sibling competition, favoritism, and conflict in 201 teenage sibling dyads.
View Article and Find Full Text PDFNurs Inq
October 2025
Department of Applied Social Sciences, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
Nurses are often perceived as dominant figures in patient interactions due to their specialised knowledge and institutional authority, particularly in hospital settings. This article challenges that perspective by examining nurse-patient dynamics in primary care through the lens of reciprocity-a relational concept centred on mutual exchange and interdependence. Drawing on an interpretive case study conducted in Shenzhen, China, involving 18 community nurses and 20 patients with chronic conditions, the study identifies two key dimensions of reciprocity: expertise-trust and social networking.
View Article and Find Full Text PDFDev Biol
September 2025
Massachusetts Eye and Ear, Boston, MA; Department of Ophthalmology, Harvard Medical School, Boston, MA. Electronic address:
Tissue development is a complex spatiotemporal process with multiple interdependent components. Anatomical, histological, sequencing, and evolutional strategies can be used to profile and explain tissue development from different perspectives. The introduction of single-cell RNA sequencing (scRNAseq) methods and the computational tools allows to deconvolute developmental heterogeneity and draw a decomposed uniform map.
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