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MIT has a lesser effect and cells arrest mainly at G1 phase in SH-SY5Y cells. Kratom X15 Dose Pahokee the cell arrest occurring at high doses of MIT was found to be correlated with p53 and p21 Kratom X15 Dose Pahokee expression although the expression changes were marginal compared to control and lower dose groups. The mechanism for cell cycle arrest in the cells treated with high doses of MSE remains unclear as there was no correlation with p53 and p21 as both what is kratom capsules Kratom X15 Dose Pahokee proteins were lost after the treatment. The level of MSE toxicity for SH-SY5Y and HEK 293 cells was found to be increased 10-fold when metabolic activation system (post mitochondrial rat liver S9 induced with Arochlor 1254) was added to the treatment. This implies that MSE cytotoxicity requires metabolism for its activation and CYP2E1 was thought to be involved in this metabolic activation.
This result implies that there are possibly other chemicals present in the leaves of this plant which could be contributor to the MSE cytotoxicity. There is an increasing popularity of use of Mitragyna speciosa Korth (Kratom) leaves as self-treatment for opioid withdrawal and chronic pain among Americans (Boyer et al 2007). This kratom for opiate withdrawal dosage in fact reflects increasing interest in constituents of this plant MIT and its congener 7-hydroxymitragynine which have been shown to exert potent analgesic effects in various in vivo and in vitro studies (Matsumoto et al 2004). Furthermore with the recent report on the use of this plant to treat chronic pain with lesser effects of withdrawal compared to opioid prescription treatment people are using this define mitragyna speciosa saint davids chu plant as an alternative to opium drugs (Boyer et al 2008). In addition the increasing number of vendors supplying the leaves of this plant in any form via the internet has made the plant globally available as there is no restriction or legislation against possession of this plant except in the source countries (Malaysia Thailand etc). Apart from the effects of using this plant seen with traditional users and drug addicts as described previously in chapter 1(section 1. With the introduction of legislation against possession of this plant in Malaysia the access of this plant to the public especially to drug addicts is now under tighter control.