The problem of stability in population dynamics concerns many domains of application in demography, biology, mechanics and mathematics. The problem is highly generic and independent of the population considered (human, animals, molecules,…). We give in this paper some examples of population dynamics concerning nucleic acids interacting through direct nucleic binding with small or cyclic RNAs acting on mRNAs or tRNAs as translation factors or through protein complexes expressed by genes and linked to DNA as transcription factors. The networks made of these interactions between nucleic acids (considered respectively as edges and nodes of their interaction graph) are complex, but exhibit simple emergent asymptotic behaviours, when time tends to infinity, called attractors. We show that the quantity called attractor entropy plays a crucial role in the study of the stability and robustness of such genetic networks.
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http://dx.doi.org/10.1007/s10441-014-9229-5 | DOI Listing |
Infect Genet Evol
January 2025
Department of Epidemiology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Thailand. Electronic address:
The growing issue of drug resistance, particularly multidrug-resistant TB (MDR-TB), has exacerbated this problem. The rise of drug resistance TB is a severe global health concern. In Thailand, a persistent community outbreak of primary MDR-TB has been confirmed in the Tha Maka district of Kanchanaburi province, with an increasing prevalence of MDR-TB among newly diagnosed pulmonary tuberculosis cases.
View Article and Find Full Text PDFJ Immunother Cancer
January 2025
Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
Purpose: Anti-programmed cell death 1 (PD1) is the first-choice treatment in patients with advanced cutaneous squamous cell carcinoma (cSCC), when curative options are unavailable. However, reliable biomarkers for patient selection are still lacking.
Experimental Design: In this translational study, clinical annotations, tissue and liquid biopsies were acquired to investigate the association between sustained objective responses and transcriptional profiles, immune cell dynamics in tumor tissue and peripheral blood samples, as well as circulating cytokine levels.
Exp Eye Res
January 2025
Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India. Electronic address:
Autophagy is common in the aging retinal pigment epithelium (RPE). A dysfunctional autophagy in aged RPE is implicated in the pathogenesis of age-related macular degeneration. Aging human retina accompanies degenerative changes in photoreceptor mitochondria.
View Article and Find Full Text PDFJ Theor Biol
January 2025
Center for Computational and Theoretical Biology, University of Wuerzburg, Klara-Oppenheimer-Weg 32, Wuerzburg, 97074, Germany; Department of Theoretical Biology, Max Planck Institute for Evolutionary Biology, August-Thienemann-Str. 2, Ploen, 24306, Germany.
Real-world processes often exhibit temporal separation between actions and reactions - a characteristic frequently ignored in many modelling frameworks. Adding temporal aspects, like time delays, introduces a higher complexity of problems and leads to models that are challenging to analyse and computationally expensive to solve. In this work, we propose an intermediate solution to resolve the issue in the framework of evolutionary game theory.
View Article and Find Full Text PDFJ Theor Biol
January 2025
Department of Biology, University of Maryland, College Park, 20742, MD, USA; Institut de Biologie, Ecole Normale Superieure, Paris, 75005, France; School of Biological Sciences, Georgia Institute of Technology, Atlanta, 30332, GA, USA. Electronic address:
Virus population dynamics are driven by counter-balancing forces of production and loss. Whereas viral production arises from complex interactions with susceptible hosts, the loss of infectious virus particles is often approximated as a first-order kinetic process. As such, experimental protocols to measure infectious virus loss are not typically designed to identify non-exponential decay processes.
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