• Am. J. Chin. Med. · Jan 2014

    Chinese prescription Kangen-karyu and Salviae Miltiorrhizae Radix improve age-related oxidative stress and inflammatory response through the PI3K/Akt or MAPK pathways.

    • Chan Hum Park, Dae Hyun Kim, Min Hi Park, Mi Kyung Kim, Nam Deuk Kim, Cheol Min Kim, Takashi Tanaka, Takako Yokozawa, Hae Young Chung, and Hyung Ryong Moon.
    • Molecular Inflammation Research Center for Aging Intervention (MRCA), Pusan National University, Geumjeong-gu, Busan 609-735, Korea.
    • Am. J. Chin. Med. 2014 Jan 1; 42 (4): 987-1005.

    AbstractThis study examined whether Kangen-karyu and its crude drug, Salviae Miltiorrhizae Radix, have a reno-protective effect on the age-related oxidative stress and inflammatory response through the phosphoinositide 3-kinase (PI3K)/Akt or mitogen-activated protein kinase (MAPK) pathways in aged rats. Kangen-karyu or Salviae Miltiorrhizae Radix (20 mg/kg body weight/day) was administered orally to old groups of rats for 16 days, and their effects were compared with the vehicle-treated old and young rats. The administration of Kangen-karyu caused a slight decrease in the serum glucose level and a significant decrease in the serum insulin level in the old rats. The increased levels of serum renal functional parameter (urea-nitrogen) and oxidative parameter were significantly reduced by both Kangen-karyu and Salviae Miltiorrhizae Radix. The old rats exhibited a dysregulation of the protein expression related to insulin resistance, oxidative stress, and inflammation in the kidneys, but Kangen-karyu administration significantly reduced the expression of the inflammatory proteins through the PI3K/Akt pathway. On the other hand, the Salviae Miltiorrhizae Radix-treated old rats showed a decrease in the inflammatory cytokines through the MAPK pathway. These results provide important evidence that Kangen-karyu and Salviae Miltiorrhizae Radix have a pleiotropic effect on the PI3K/Akt and MAPK pathways, showing renoprotective effects against the development of inflammation in old rats. This study provides scientific evidence that Kangen-karyu and Salviae Miltiorrhizae Radix improve the inflammatory responses via the PI3K/Akt or MAPK pathways in the kidney of old rats.

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