Adverse reactions after a B12 injection may include: A feeling of tightness in the chest Anaphylaxis (difficulty breathing or swallowing) Chest pain Congestive heart failure Heart palpitations Pulmonary edema Rapid heartbeat (tachycardia) Shortness of breath Vascular thrombosis Musculoskeletal Effects Your musculoskeletal system makes up your bones, tendons, cartilage, and connective tissues
Gene-expression changes in dermal fibroblast cultures collagen, decorin, matrix-metalloproteinase regulation
The final stage of healing remodeling begins weeks after the onset of the damage
This mechanismwhere virusantibody complexes worsen disease progressionis increasingly regarded as a distinct form of ADE [36,37] (Figure 1B)
These mechanisms remain the subject of ongoing laboratory and preclinical research
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