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Beneficial death: A substantial element of evolution?
Biogerontology
January 2025
Clinic for Heart Surgery (UMH), Martin-Luther-University Halle-Wittenberg, Ernst-Grube-Straße 40, 06120, Halle (Saale), Germany.
If a shortened lifespan is evolutionarily advantageous, it becomes more likely that nature will strive to change it accordingly, affecting how we understand aging. Premature mortality because of aging would seem detrimental to the individual, but under what circumstances can it be of value? Based on a relative incremental increase in fitness, simulations were performed to reveal the benefit of death. This modification allows for continuous evolution in the model and establishes an optimal lifespan even under challenging conditions.
View Article and Find Full Text PDFGambling advertising regulation in Ghana: what do we know and where to next?
J Public Health Policy
January 2025
Collaboration for Evidence Research and Impact in Public Health, School of Population Health, Curtin University, Perth, WA, Australia.
In Ghana and many other sub-Saharan African countries gambling advertising has become pervasive due to weak regulations that allow gambling operators to zealously promote their products as a risk-free way to make money. In this commentary, we provide a public health perspective based on document analysis of the Ghana Gaming Commission's guidelines on advertisements, and recommendations for strengthening Ghana's gambling regulatory environment. With the industry intensifying its focus on new markets to grow and sustain profits, and new global players entering Ghana's market, the competition for market share will most likely intensify with an associated and aggressive increase in gambling advertising.
View Article and Find Full Text PDFNr4a1 and Nr4a3 redundantly control clonal deletion and contribute to an anergy-like transcriptome in auto-reactive thymocytes to impose tolerance in mice.
Nat Commun
January 2025
Division of Rheumatology, Rosalind Russell and Ephraim P. Engleman Arthritis Research Center, Department of Medicine, University of California, San Francisco, CA, 94143, USA.
The Nr4a nuclear hormone receptors are transcriptionally upregulated in response to antigen recognition by the T cell receptor (TCR) in the thymus and are implicated in clonal deletion, but the mechanisms by which they operate are not clear. Moreover, their role in central tolerance is obscured by redundancy among the Nr4a family members and by their reported functions in Treg generation and maintenance. Here we take advantage of competitive bone marrow chimeras and the OT-II/RIPmOVA model to show that Nr4a1 and Nr4a3 are essential for the upregulation of Bcl2l11/BIM and thymic clonal deletion by self-antigen.
View Article and Find Full Text PDFExploring the influence of spiritual leadership on proactive customers service performance.
Acta Psychol (Amst)
January 2025
School of Public Affair, University of Science and Technology, China. Electronic address:
This study examines the interaction between spiritual leadership and employee proactive service performance in the competitive hospitality industry. Using social exchange theory (SET) and conservation of resources (COR) theory as frameworks, we propose a model where organizational identification and employee voice mediate the relationship between spiritual leadership and proactive service performance. Additionally, we explore how service climate moderates these mediating effects.
View Article and Find Full Text PDFProtecting monoclonal antibodies via competitive interfacial adsorption of nonionic surfactants.
J Colloid Interface Sci
December 2024
Biological Physics Laboratory, Department of Physics and Astronomy, University of Manchester, Oxford Road, Schuster Building, Manchester M13 9PL, UK. Electronic address:
Hypothesis: Bioengineered monoclonal antibodies (mAbs) have gained significant recognition as medical therapies. However, during processing, storage and use, mAbs are susceptible to interfacial adsorption and desorption, leading to structural deformation and aggregation, and undermining their bioactivity. To suppress antibody surface adsorption, nonionic surfactants are commonly used in formulation.
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