Introduction The plastic responses of legumes to nitrogen-limited conditions through the formation of nitrogen-fixing nodules merits extensive investigation
Woo S-G, Moon S-J, Kim SK, Kim TH, Lim HS, Yeon G-H, et al
The following diagram easily explains this phenomenon
Because D-penetratin did not enhance the nose-to-brain delivery of exendin-4 and GLP-1, they suggested that D-penetratin/cargo complex that resists proteolysis, possibly remains in the cytoplasm compared to L-penetratin/cargo complex, and is released less to lamina propria located in the middle part of the olfactory bulb (Kamei et al., 2018)
Panda SP, Sinha S, Kesharwani A, et al