Accumulating clinical observations suggest pathogenesis beyond viral pneumonia and its secondary consequences in COVID-19 patients. In particular, many patients develop profound hyperinflammation and hypercoagulopathy with disseminated thrombogenesis and thromboembolism, which we observe also in a Swedish COVID-19 intensive care patient cohort. To understand these vascular manifestations, it is important to establish the potential vascular entry point(s) of the SARS-CoV-2 virus, i.e. which vascular cell types express the SARS-CoV-2 receptor ACE2. We present data that ACE2 is specifically and highly expressed in microvascular pericytes, but absent from endothelial cells, perivascular macrophages and fibroblasts. Mice with pericyte ablation show increased expression and release of Von Willebrand Factor from microvascular endothelial cells, suggesting that pericytes orchestrate thrombogenic responses in neighboring endothelial cells. Identifying pericytes rather than endothelial cells as the ACE2-expressing cells in the vasculature may explain why hypertension, diabetes and obesity are risk factors for severe COVID-19 patients, as these conditions are characterized by an impaired endothelial barrier function, allowing SARS-CoV-2 to reach and infect the pericytes that are normally shielded from the blood behind an intact endothelial barrier. This novel COVID-19-(which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission.

BackgroundImmigrants and refugees are affected by diabetes-related health disparities, with higher rates of incident diabetes and sub-optimal diabetes outcomes. Digital storytelling interventions for chronic diseases, such as diabetes may be especially powerful among immigrants because often limited English proficiency minimizes access to and affects the applicability of the existing health education opportunities. Community-based participatory research (CBPR), whereby community members and academia partner in an equitable relationship through all phases of the research, is an intuitive approach to develop these interventions. The main objective of this study was to develop a diabetes digital storytelling intervention with and for immigrant and refugee populations.MethodsWe used a CBPR approach to develop a diabetes digital storytelling intervention with and for immigrant and refugee Somali and Latino communities. Building on an established CBPR partnership, we conducted focus groups among community members with type II diabetes for a dual purpose: 1) to inform the intervention as it related to four domains of diabetes self-management (medication management, glucose self-monitoring, physical activity, and nutrition); 2) to identify champion storytellers for the intervention development. Eight participants attended a facilitated workshop for the creation of the digital stories.ResultsEach of the eight storytellers, from the Somali and Latino communities with diabetes (four from each group), created a powerful and compelling story about their struggles and accomplishments related to the four domains of diabetes self-management.ConclusionsThis report is on a systematic, participatory process for the successful development of a diabetes storytelling intervention for Somali and Latino adults. Processes and products from this work may inform the work of other CBPR partnerships.Electronic supplementary materialThe online version of this article (doi:10.1186/s12889-015-2628-y) contains supplementary material, which is available to authorized users.

Purpose The purpose of this pilot feasibility project was to examine the potential effectiveness of a digital storytelling intervention designed through a community-based participatory research approach for immigrants and refugees with type 2 diabetes mellitus (T2DM). Methods The intervention was a 12-minute culturally and linguistically tailored video consisting of an introduction, 4 stories, and a concluding educational message. A structured interview was used to assess the intervention for acceptability, interest level, and usefulness among 25 participants with T2DM (15 Latino, 10 Somali) across 5 primary care clinical sites. After watching the video, participants rated their confidence and motivation about managing T2DM as a result of the intervention. Baseline hemoglobin A1c (A1C) and follow-up values (up to 6 months) were abstracted from medical records. Results All participants reported that the intervention got their attention, was interesting, and was useful; 96% reported that they were more confident about managing their T2DM than before they watched the video; and 92% reported that the video motivated them to change a specific behavior related to T2DM self-management. The mean baseline A1C level for the intervention participants was 9.3% (78 mmol/mol). The change from baseline to first follow-up A1C level was −0.8% (−10 mmol/mol) (P<.05). Conclusions Implementation of a digital storytelling intervention for T2DM among immigrant populations in primary care settings is feasible and resulted in self-rated improvement in psychosocial constructs that are associated with healthy T2DM self-management behaviors, and there was some evidence of improvement in glycemic control. A large-scale efficacy trial of the intervention is warranted.