I care by...

The Care research group at the Royal College of Art (RCA) was conceived in the last week of June 2020, a month after the killing of George Floyd by police in Minnesota, an act which catalysed global protests on systemic racism and police brutality. In the UK, tens of thousands of protesters took to the streets to show solidarity with demonstrators in the US. Coinciding with the easing of the lockdown restrictions imposed to manage the coronavirus, the marches shone a light on the government’s failure to protect Black, Asian and Minority Ethnic people from the disproportionate risk posed by COVID- 19, and on the police’s increased use of stop and search in areas with large BAME populations. The pandemic has shone the harshest of lights on the question of care in the age of neoliberalism: who gets it; who needs it; who does it; who controls it. The Care research group, comprising staff and postgraduate researchers within the School of Arts and Humanities at the RCA, works in this light. Over the course of a year, as the inequalities of the virus were becoming all too clear, the group regularly came together via Zoom to reflect on: the question of how to care for the human body in the technical-patriarchal societies the virus has re-inscribed; the ‘un-doing’ of what Judith Butler describes as the binary of vulnerability and resistance; the politically-transformative potential of prioritising care (rooted in empathy, solidarity, kinship) over capitalist gain; the activation of creative research practices (including but by no means limited to writing, looking, painting, drawing, filming, performing, collecting, assembling, curating, making public) as means of caring/transforming. The group’s activities through the year of trying, failing, and trying again to care for its work and members are gathered in a co-authored Declaration of Care, published here, and expanded upon with attention to some of the methods group members developed in their research through practice. The Declaration was recited in a participatory performance with invited artist Jade Montserrat on 10 March 2021. Over the course of a two-hour webinar, participants including members of the public were invited to draw alongside Montserrat with whatever materials they had to hand as they listened to texts on the vulnerabilities of bodies, the structuring of care within institutions, and the tactile, sensory, healing qualities of creative practice. This book includes a selection of the participants’ drawings, a Reader comprising the texts that were shared, and Montserrat’s drawings created through the performance. Ahead of the performance, Montserrat delivered an address to the Care research group which looked back on a lifetime of calling for a kind of care that was never provided. Excerpts from Montserrat’s address are included here too, alongside a text and image which reflect on the group’s affective reactions to the experience of listening to it, titled Episode. The Declaration is a list of methods (approaches, processes, techniques), an enumeration of how Care research group members have worked, and would like to work: ‘I care by…’. This is a statement which has reverberated throughout the year, which bears repeating, which resounds still. Gemma Blackshaw, Care research group convenor, 2020–202

Finishing the euchromatic sequence of the human genome

The sequence of the human genome encodes the genetic instructions for human physiology, as well as rich information about human evolution. In 2001, the International Human Genome Sequencing Consortium reported a draft sequence of the euchromatic portion of the human genome. Since then, the international collaboration has worked to convert this draft into a genome sequence with high accuracy and nearly complete coverage. Here, we report the result of this finishing process. The current genome sequence (Build 35) contains 2.85 billion nucleotides interrupted by only 341 gaps. It covers ∼99% of the euchromatic genome and is accurate to an error rate of ∼1 event per 100,000 bases. Many of the remaining euchromatic gaps are associated with segmental duplications and will require focused work with new methods. The near-complete sequence, the first for a vertebrate, greatly improves the precision of biological analyses of the human genome including studies of gene number, birth and death. Notably, the human enome seems to encode only 20,000-25,000 protein-coding genes. The genome sequence reported here should serve as a firm foundation for biomedical research in the decades ahead

The impact of natural resource use on bird and reptile communities within multiple-use protected areas: evidence from sub-arid southern Madagascar

Multiple-use protected areas, in which sustainable levels of extractive livelihood activities are permitted, play an increasingly important role in the global protected area estate, and are expected to rise in prevalence. However, we know little about their effectiveness at conserving biodiversity. We surveyed bird and reptile communities in three areas across a forest disturbance gradient resulting from charcoal production and shifting cultivation within a multiple-use protected area in Madagascar’s sub-arid spiny forest. We scored individual species using a Conservation Value Index (CVI; a simple metric based on rarity, threat and distinctiveness), and estimated the total conservation value of each treatment by calculating the sum of frequency-weighted CVI scores across all present species. Bird and reptile community responses to forest disturbance were idiosyncratic. Bird richness was greatest in the moderate-disturbance treatment, but the low-disturbance treatment had the superior conservation value due to higher frequencies of locally-endemic species. Reptile richness was the same in low- and moderate-disturbance treatments, but the conservation value of the latter was greater. The high-disturbance areas had lowest richness and conservation value for both groups. For birds, increasing disturbance levels were accompanied by community turnover from high-value to low-value species, a pattern highlighted by CVI that is masked by assessing species richness alone. Although some endemic species appear to be resilient to degradation, multiple-use protected areas in Madagascar may lose biodiversity since most endemic species are forest-dependent. Stricter protected area models may be more appropriate in areas where much of the high-value biodiversity is sensitive to habitat degradation

Effects of eight neuropsychiatric copy number variants on human brain structure

Many copy number variants (CNVs) confer risk for the same range of neurodevelopmental symptoms and psychiatric conditions including autism and schizophrenia. Yet, to date neuroimaging studies have typically been carried out one mutation at a time, showing that CNVs have large effects on brain anatomy. Here, we aimed to characterize and quantify the distinct brain morphometry effects and latent dimensions across 8 neuropsychiatric CNVs. We analyzed T1-weighted MRI data from clinically and non-clinically ascertained CNV carriers (deletion/duplication) at the 1q21.1 (n = 39/28), 16p11.2 (n = 87/78), 22q11.2 (n = 75/30), and 15q11.2 (n = 72/76) loci as well as 1296 non-carriers (controls). Case-control contrasts of all examined genomic loci demonstrated effects on brain anatomy, with deletions and duplications showing mirror effects at the global and regional levels. Although CNVs mainly showed distinct brain patterns, principal component analysis (PCA) loaded subsets of CNVs on two latent brain dimensions, which explained 32 and 29% of the variance of the 8 Cohen’s d maps. The cingulate gyrus, insula, supplementary motor cortex, and cerebellum were identified by PCA and multi-view pattern learning as top regions contributing to latent dimension shared across subsets of CNVs. The large proportion of distinct CNV effects on brain morphology may explain the small neuroimaging effect sizes reported in polygenic psychiatric conditions. Nevertheless, latent gene brain morphology dimensions will help subgroup the rapidly expanding landscape of neuropsychiatric variants and dissect the heterogeneity of idiopathic conditions

SARA

International audienc

Endothelial Cell Orientation and Polarity Are Controlled by Shear Stress and VEGF Through Distinct Signaling Pathways

Vascular networks form, remodel and mature under the influence of multiple signals of mechanical or chemical nature. How endothelial cells read and interpret these signals, and how they integrate information when they are exposed to both simultaneously is poorly understood. Here, we show using flow-induced shear stress and VEGF-A treatment on endothelial cells in vitro, that the response to the magnitude of a mechanical stimulus is influenced by the concentration of a chemical stimulus, and vice versa. By combining different flow levels and different VEGF-A concentrations, front-rear polarity of endothelial cells against the flow direction was established in a flow and VEGF-A dose-response while their alignment with the flow displayed a biphasic response depending on the VEGF-A dose (perpendicular at physiological dose, aligned at no or pathological dose of VEGF-A). The effect of pharmaceutical inhibitors demonstrated that while VEGFR2 is essential for both polarity and orientation establishment in response to flow with and without VEGF-A, different downstream effectors were engaged depending on the presence of VEGF-A. Thus, Src family inhibition (c-Src, Yes, Fyn together) impaired alignment and polarity without VEGF-A while FAK inhibition modified polarity and alignment only when endothelial cells were exposed to VEGF-A. Studying endothelial cells in the aortas of VEGFR2(Y949F) mutant mice and SRCiEC-KO mice confirmed the role of VEGFR2 and specified the role of c-SRC in vivo. Endothelial cells of VEGFR2(Y949F) mutant mice lost their polarity and alignment while endothelial cells from SRCiEC-KO mice only showed reduced polarity. We propose here that VEGFR2 is a sensor able to integrate chemical and mechanical information simultaneously and that the underlying pathways and mechanisms activated will depend on the co-stimulation. Flow alone shifts VEGFR2 signaling toward a Src family pathway activation and a junctional effect (both in vitro and in vivo) while flow and VEGF-A together shift VEGFR2 signaling toward focal adhesion activation (in vitro) both modifying cell responses that govern orientation and polarity