Prolonged high Myl9 levels are associated with the pathogenesis and respiratory symptom of post-acute COVID-19 syndrome: A 6-month follow-up study.

Background: Post-acute COVID-19 Syndrome (PACS) occurs in some COVID-19 patients long after acute infection and significantly affects patients' health. However, the mechanism by which PACS develops is unknown. Myosin light chain 9 (Myl9), produced by activated platelets, plays a role in immune dysregulation and microthrombi formation during acute COVID-19.

External validation and update of minimal important change in the 6-minute walk test in hospitalized patients with subacute stroke.

Objective: To investigate the external validation of the previously reported minimal important change (MIC) in the 6-minute walk test (6MWT) and update it for patients with subacute stroke hospitalized in rehabilitation unit.

Design: Longitudinal study SETTING: : Rehabilitation unit of a neurosurgical hospital.

Participants: One hundred and seven patients with subacute stroke.

Host tissue factors predict immune surveillance and therapeutic outcomes in gastric cancer.

The immune composition of solid tumors is typically inferred from biomarkers, such as histologic and molecular classifications, somatic mutational burden, and PD-L1 expression. However, the extent to which these biomarkers predict the immune landscape in gastric adenocarcinoma-an aggressive cancer often linked to chronic inflammation-remains poorly understood. We leveraged high-dimensional spectral cytometry to generate a comprehensive single-cell immune landscape of tumors, normal tissue, and lymph nodes from patients in the Western Hemisphere with gastric adenocarcinoma.