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Article

Green Tea Seed Oil Suppressed Aβ1–42-Induced Behavioral and Cognitive Deficit via the Aβ-Related Akt Pathway

by
Jong Min Kim
1,
Seon Kyeong Park
1,
Jin Yong Kang
1,
Su Bin Park
1,
Seul Ki Yoo
1,
Hye Ju Han
1,
Kyoung Hwan Cho
2,
Jong Cheol Kim
2 and
Ho Jin Heo
1,*
1
Division of Applied Life Science (BK21 plus), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Korea
2
Institute of Hadong Green Tea, Hadong 52304, Korea
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2019, 20(8), 1865; https://doi.org/10.3390/ijms20081865
Submission received: 1 April 2019 / Revised: 11 April 2019 / Accepted: 12 April 2019 / Published: 15 April 2019
(This article belongs to the Section Bioactives and Nutraceuticals)
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Abstract

The aim of this study was to investigate the availability of seeds, one of the byproducts of green tea, and evaluate the physiological activity of seed oil. The ameliorating effect of green tea seed oil (GTO) was evaluated on H2O2-induced PC12 cells and amyloid beta (Aβ)1–42-induced ICR mice. GTO showed improvement of cell viability and reduced reactive oxygen species (ROS) production in H2O2-induced PC12 cells by conducting the 2′,3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) and 2′,7′-dichlorofluorescein diacetate (DCF-DA) analysis. Also, administration of GTO (50 and 100 mg/kg body weight) presented protective effects on behavioral and memory dysfunction by conducting Y-maze, passive avoidance, and Morris water maze tests in Aβ-induced ICR mice. GTO protected the antioxidant system by reducing malondialdehyde (MDA) levels, and by increasing superoxide dismutase (SOD) and reducing glutathione (GSH) contents. It significantly regulated the cholinergic system of acetylcholine (ACh) contents, acetylcholinesterase (AChE) activities, and AChE expression. Also, mitochondrial function was improved through the reduced production of ROS and damage of mitochondrial membrane potential (MMP) by regulating the Aβ-related c-Jun N-terminal kinase (JNK)/protein kinase B (Akt) and Akt/apoptosis pathways. This study suggested that GTO may have an ameliorating effect on cognitive dysfunction and neurotoxicity through various physiological activities.
Keywords: green tea seed oil; amyloid β; neuroprotective effect; Aβ-related Akt pathway green tea seed oil; amyloid β; neuroprotective effect; Aβ-related Akt pathway
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MDPI and ACS Style

Kim, J.M.; Park, S.K.; Kang, J.Y.; Park, S.B.; Yoo, S.K.; Han, H.J.; Cho, K.H.; Kim, J.C.; Heo, H.J. Green Tea Seed Oil Suppressed Aβ1–42-Induced Behavioral and Cognitive Deficit via the Aβ-Related Akt Pathway. Int. J. Mol. Sci. 2019, 20, 1865. https://doi.org/10.3390/ijms20081865

AMA Style

Kim JM, Park SK, Kang JY, Park SB, Yoo SK, Han HJ, Cho KH, Kim JC, Heo HJ. Green Tea Seed Oil Suppressed Aβ1–42-Induced Behavioral and Cognitive Deficit via the Aβ-Related Akt Pathway. International Journal of Molecular Sciences. 2019; 20(8):1865. https://doi.org/10.3390/ijms20081865

Chicago/Turabian Style

Kim, Jong Min, Seon Kyeong Park, Jin Yong Kang, Su Bin Park, Seul Ki Yoo, Hye Ju Han, Kyoung Hwan Cho, Jong Cheol Kim, and Ho Jin Heo. 2019. "Green Tea Seed Oil Suppressed Aβ1–42-Induced Behavioral and Cognitive Deficit via the Aβ-Related Akt Pathway" International Journal of Molecular Sciences 20, no. 8: 1865. https://doi.org/10.3390/ijms20081865

APA Style

Kim, J. M., Park, S. K., Kang, J. Y., Park, S. B., Yoo, S. K., Han, H. J., Cho, K. H., Kim, J. C., & Heo, H. J. (2019). Green Tea Seed Oil Suppressed Aβ1–42-Induced Behavioral and Cognitive Deficit via the Aβ-Related Akt Pathway. International Journal of Molecular Sciences, 20(8), 1865. https://doi.org/10.3390/ijms20081865

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