7.1 Nose-to-brain delivery of insulin using penetratin Insulin delivery through nose-to-brain pathway is aimed to improve memory by enhancing synaptic plasticity and glucose uptake, thereby attenuating the neuropathy associated with AD ( Takeda-Morishita group employed the noncovalent method for nose-to-brain delivery of penetratin that was found to be better than octaarginine (R8) in intestinal and nasal delivery ( Higher insulin in the blood did not necessarily correlate with elevated insulin levels in the brain, implying that blood-to-brain delivery is not the main contributor to nasal L-penetratin/insulin delivery ( These investigators also assessed the distribution of nasally administered physical mixtures of insulin and L- or D-penetratin and confirmed the direct transport of insulin from the nasal cavity to the brain parenchyma in rats ( More recently, Kamei et al
decrease pores, promote elasticity, and tighten skin
The benzyl alcohol is a fantastic safety net, but it's not a magic shield
Benefits often continue to build for up to a year after treatment
Livdans-Forret AB, Harvey PJ, Larkin-Thier SM
The untreated db/db group exhibited significantly increased expression of inflammatory markers TNF-alpha, Caspase-1, and NLRP3, as well as fibrosis markers fibronectin, collagen I, and alpha-SMA
