ABSTRACT
SARS-CoV-2 infection triggers highly variable host responses and causes varying degrees of illness in humans. We sought to harness the peripheral blood mononuclear cell (PBMC) response over the course of illness to provide insight into COVID-19 physiology. We analyzed PBMCs from subjects with variable symptom severity at different stages of clinical illness before and after IgG seroconversion to SARS-CoV-2. Prior to seroconversion, PBMC transcriptomes did not distinguish symptom severity. In contrast, changes in chromatin accessibility were associated with symptom severity. Furthermore, single-cell analyses revealed evolution of the chromatin accessibility landscape and transcription factor motif occupancy for individual PBMC cell types. The most extensive remodeling occurred in CD14+ monocytes where sub-populations with distinct chromatin accessibility profiles were associated with disease severity. Our findings indicate that pre-seroconversion chromatin remodeling in certain innate immune populations is associated with divergence in symptom severity, and the identified transcription factors, regulatory elements, and downstream pathways provide potential prognostic markers for COVID-19 subjects. One sentence summaryChromatin accessibility in immune cells from COVID-19 subjects is remodeled prior to seroconversion to reflect disease severity.
ABSTRACT
In this paper, scientific theory was used to prove that the meridian was the resonant channel of information energy of life, and experiment and demonstration was performed to reveal meridians to explore the significance of revealing meridian. Based on the theory of physics, biochemistry, molecular biology and information theory, the essence of meridian was demonstrated in theory. According to TCM meridian theory, acupuncture was applied at selected acupoints; the infrared thermograms of stomach meridian of foot , large intestine meridian of hand , small intestine meridian of hand , pericardium meridian of hand , heart meridian of hand , triple energizer meridian of hand , liver meridian of foot , bladder meridian of foot were recorded before and after acupuncture. As a result, thermogram recorded and showed the visual image of the meridian. It is indicated that an energy transmission network which cannot be dissected existing in the body, which was believed to be meridian. It was the resonant channel of information energy of life, and could be shown by thermogram. These experiments and theory have significance in science.
