Toxic gain function
Sickle Cell Disease
Genotype
Hbba
Mechanism
Toxic gain function
Phenotype
Locomotor activity, Fatigue, Endurance, Pain, Anxiety, Social interaction, Cognitive impairment
Biomarker
Hemoglobin, Haptoglobin,Erythropoietin, Reticulocytes, CRP, IL 6
Gene Expression Markers
HIF1A, VEGFA, EPO, SOD1, GPX1, HMOX1, TNF, IL6, VCAM1, ICAM1
Physiology Changes
Hypoxia, Hemolysis, Vaso occlusion
Histology Grading Endpoint
Presence of sickled (crescent-shaped) RBCs, Increased anisocytosis and poikilocytosis, Increased RBC breakdown
Presence of fragmented cells, Capillary and microvascular blockage by sickled RBC, Leukocyte infiltration, Endothelial cell activation



