Collagen is the primary building block of your body's skin, muscles, bones and more. But it's hard to keep the levels in check because as you age, your body's collagen levels naturally decline.
The primary induction sites for intestinal IgA are the gut-associated lymphoid tissues (GALT), such as Peyer's patches (PPs) and isolated lymphoid follicles (ILFs). The commensal microbiota is known ...