5 research outputs found

    CRAFT SPECIALIZATION AND THE EMERGENCE OF THE CHIEFLY CENTRAL PLACE COMMUNITY OF HE-4 (EL HATILLO), CENTRAL PANAMA

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    The development of chiefdoms has received considerable attention from archaeologists, but there remains little consensus with respect to the underlying causal mechanisms. In particular, the importance of an economic foundation to the emergence of chiefdoms has been the focus of some debate. Some scholars have argued that the mobilization of key resources such as land, labor, agricultural surplus or craft production is critical to the development of chiefdom polities as it implies a material foundation for political power. An alternative view places more importance on status competition and the display and exchange of prestige goods among emergent elites. Because it may be used to support either strategy, craft specialization has figured prominently in discussions of these two kinds of chiefly political economy. The focus of this dissertation is the degree to which specialized craft production was a significant factor in the development of chiefdoms at the central place community of He-4 in the Río Parita valley of Central Panama. The results of this dissertation show that craft specialization was relatively unimportant to the emergence of chiefdoms in the Río Parita valley during the Cubitá phase (A.D. 550-700), suggesting a social hierarchy based more on non-economic forms of social power, perhaps including feasting activities, warfare or involvement in local trade. The data from He-4 also show that the social hierarchy seen in the burial record after A.D. 700-900 develops in tandem with differences in household status that are apparent as early as the Cubitá phase (A.D. 550-700). These differences in household status become increasingly well developed over time; however, they are never as dramatic as the differences seen in the mortuary record for Central Panama. There is also no real connection between the emergence of the social hierarchy at He-4 and craft specialization. It is only during the Parita phase (A.D. 1100-1300) that craft specialization involving the final stages of axe manufacture and use of polished stone chisels becomes important activities in high status households at He-4

    Stratified analyses refine association between TLR7 rare variants and severe COVID-19

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    Summary: Despite extensive global research into genetic predisposition for severe COVID-19, knowledge on the role of rare host genetic variants and their relation to other risk factors remains limited. Here, 52 genes with prior etiological evidence were sequenced in 1,772 severe COVID-19 cases and 5,347 population-based controls from Spain/Italy. Rare deleterious TLR7 variants were present in 2.4% of young (<60 years) cases with no reported clinical risk factors (n = 378), compared to 0.24% of controls (odds ratio [OR] = 12.3, p = 1.27 × 10−10). Incorporation of the results of either functional assays or protein modeling led to a pronounced increase in effect size (ORmax = 46.5, p = 1.74 × 10−15). Association signals for the X-chromosomal gene TLR7 were also detected in the female-only subgroup, suggesting the existence of additional mechanisms beyond X-linked recessive inheritance in males. Additionally, supporting evidence was generated for a contribution to severe COVID-19 of the previously implicated genes IFNAR2, IFIH1, and TBK1. Our results refine the genetic contribution of rare TLR7 variants to severe COVID-19 and strengthen evidence for the etiological relevance of genes in the interferon signaling pathway

    Whole-genome sequencing reveals host factors underlying critical COVID-19

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    Altres ajuts: Department of Health and Social Care (DHSC); Illumina; LifeArc; Medical Research Council (MRC); UKRI; Sepsis Research (the Fiona Elizabeth Agnew Trust); the Intensive Care Society, Wellcome Trust Senior Research Fellowship (223164/Z/21/Z); BBSRC Institute Program Support Grant to the Roslin Institute (BBS/E/D/20002172, BBS/E/D/10002070, BBS/E/D/30002275); UKRI grants (MC_PC_20004, MC_PC_19025, MC_PC_1905, MRNO2995X/1); UK Research and Innovation (MC_PC_20029); the Wellcome PhD training fellowship for clinicians (204979/Z/16/Z); the Edinburgh Clinical Academic Track (ECAT) programme; the National Institute for Health Research, the Wellcome Trust; the MRC; Cancer Research UK; the DHSC; NHS England; the Smilow family; the National Center for Advancing Translational Sciences of the National Institutes of Health (CTSA award number UL1TR001878); the Perelman School of Medicine at the University of Pennsylvania; National Institute on Aging (NIA U01AG009740); the National Institute on Aging (RC2 AG036495, RC4 AG039029); the Common Fund of the Office of the Director of the National Institutes of Health; NCI; NHGRI; NHLBI; NIDA; NIMH; NINDS.Critical COVID-19 is caused by immune-mediated inflammatory lung injury. Host genetic variation influences the development of illness requiring critical care or hospitalization after infection with SARS-CoV-2. The GenOMICC (Genetics of Mortality in Critical Care) study enables the comparison of genomes from individuals who are critically ill with those of population controls to find underlying disease mechanisms. Here we use whole-genome sequencing in 7,491 critically ill individuals compared with 48,400 controls to discover and replicate 23 independent variants that significantly predispose to critical COVID-19. We identify 16 new independent associations, including variants within genes that are involved in interferon signalling (IL10RB and PLSCR1), leucocyte differentiation (BCL11A) and blood-type antigen secretor status (FUT2). Using transcriptome-wide association and colocalization to infer the effect of gene expression on disease severity, we find evidence that implicates multiple genes-including reduced expression of a membrane flippase (ATP11A), and increased expression of a mucin (MUC1)-in critical disease. Mendelian randomization provides evidence in support of causal roles for myeloid cell adhesion molecules (SELE, ICAM5 and CD209) and the coagulation factor F8, all of which are potentially druggable targets. Our results are broadly consistent with a multi-component model of COVID-19 pathophysiology, in which at least two distinct mechanisms can predispose to life-threatening disease: failure to control viral replication; or an enhanced tendency towards pulmonary inflammation and intravascular coagulation. We show that comparison between cases of critical illness and population controls is highly efficient for the detection of therapeutically relevant mechanisms of disease

    A second update on mapping the human genetic architecture of COVID-19

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