There were no significant changes in the levels of Fyn. Because the levels of Fyn are not being altered, there must be a different explanation for the changes seen in the levels of MAG-Fyn interaction. Potentially, MAG has a higher chance of binding to Fyn when it is glycosylated.
Journal of Comprehensible Results
Sanchez E, Bigbee J, Fobbs W, Robinson S, Sato-Bigbee C (2008)
Opioid Addiction and Pregnancy:Perinatal Exposure to Buprenorphine
Affects Myelination in the Developing Brain.
Glia 56:1010-1027
Opioid Addiction and Pregnancy:Perinatal Exposure to Buprenorphine
Affects Myelination in the Developing Brain.
Glia 56:1010-1027
(Translated by Brenna Kent)
Experiment: Relative Levels of MAG-Fyn Interaction
One possible mechanism for how MAG alters myelination is through its interaction with the kinase Fyn. Fyn deficient mice were shown to have a decreased myelin basic protein content, so it may play a role in regulating myelination [15]. Again, this interaction is limited to the early stages of myelination[16], so MAG-Fyn interaction was only examined in 12 day old rats. The only significant change was an increase in the 0.3 mg/kg/day group. It is also possible that the lack of change in the 1 mg/kg/day group reflects the decrease in MAG levels that was also seen in the higher dosage treatment group.
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Figure 6: Relative levels of MAG-Fyn Interaction The results of measuring the interaction of MAG and Fyn are shown above and expressed in comparison to the control group. A red start indicated a significant difference from the control group. These results were obtained by Coimmunoprecipitation
Adapted from "Opioid Addiction and Pregnancy:Perinatal Exposure to Buprenorphine Affects Myelination in the Developing Brain." by Sanchez E, Bigbee J, Fobbs W, Robinson S, Sato-Bigbee C, 2008, GLIA, 56, p. 1024. Copyright 2008 by Wiley-Liss, Inc.
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Figure 7: Relative Levels of Fyn. The levels of Fyn did not change significantly in either of the treatment groups. These results were obtained by performing a Western Blot
Adapted from "Opioid Addiction and Pregnancy:Perinatal Exposure to Buprenorphine Affects Myelination in the Developing Brain." by Sanchez E, Bigbee J, Fobbs W, Robinson S, Sato-Bigbee C, 2008, GLIA, 56, p. 1024. Copyright 2008 by Wiley-Liss, Inc. |