Furthermore, multiple studies have demonstrated that collagen peptides can inhibit the expression of pro-inflammatory factors, such as tumor necrosis factor-alpha (TNF-), interleukin-1 beta (IL-1), IL-6, IL-8, inducible nitric oxide synthase (iNOS), and cyclooxygenase-2 (COX-2), in fibroblasts and keratinocytes, thereby mitigating inflammatory responses [32, 33]
this may explain the novelty of drug delivery as lozenges, which may be more stable (although two participants complained about the taste)
Alternatively, TGF- can activate the PI3K/AKT, MAPK, Rho-GTPases, and JNK/p38 pathways via noncanonical signaling
To test this idea, we implemented our previously reported intestine-specific Khk -C transgenic mice, which exhibit reduced hepatic lipogenesis owing to enhanced intestinal clearance of dietary fructose 16