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Ancient genomics and the origin, dispersal, and development of domestic sheep.
Science
January 2025
Smurfit Institute of Genetics, Trinity College Dublin, Dublin, Ireland.
The origins and prehistory of domestic sheep () are incompletely understood; to address this, we generated data from 118 ancient genomes spanning 12,000 years sampled from across Eurasia. Genomes from Central Türkiye ~8000 BCE are genetically proximal to the domestic origins of sheep but do not fully explain the ancestry of later populations, suggesting a mosaic of wild ancestries. Genomic signatures indicate selection by ancient herders for pigmentation patterns, hornedness, and growth rate.
View Article and Find Full Text PDFTIR signaling activates caspase-like immunity in bacteria.
Science
January 2025
Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.
Caspase family proteases and Toll/interleukin-1 receptor (TIR)-domain proteins have central roles in innate immunity and regulated cell death in humans. We describe a bacterial immune system comprising both a caspase-like protease and a TIR-domain protein. We found that the TIR protein, once it recognizes phage invasion, produces the previously unknown immune signaling molecule adenosine 5'-diphosphate-cyclo[N7:1'']-ribose (N7-cADPR).
View Article and Find Full Text PDFImprint of ancestral and modern threats in human mind - experience of fear, disgust, and anger.
Front Psychol
January 2025
Department of Zoology, Faculty of Science, Charles University, Prague, Czechia.
Introduction: Threats to our survival are often posed by the environment in which humans have evolved or live today. Animal and human ancestors developed complex physiological and behavioral response systems to cope with two types of threats: immediate physical harm from predators or conspecifics, triggering fear, and the risk of infections from parasites and pathogens leading to the evolution of the behavioral immune system (BIS) with disgust as the key emotion. Here we ask whether the BIS has adapted to protect us from pandemic risks or poisoning by modern toxic substances.
View Article and Find Full Text PDFAcute appendicitis and its treatment: a historical overview.
Int J Colorectal Dis
January 2025
Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Rende, Italy.
Purpose: Acute appendicitis (AA) is the leading cause of acute abdomen worldwide, with an incidence of 90-100 cases per 100,000 individuals annually and a lifetime risk of 7-12%. Despite its prevalence, historical accounts of AA are limited, particularly when compared to conditions like haemorrhoids, likely due to the appendix's internal location. This article traces the historical evolution of AA treatment from ancient times to the present, highlighting key contributions.
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