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The Effect of Green Tea with EGCG Active Compound in Enhancing the Expression of M2 Microglia Marker (CD206)
Abdulloh Machin1, Dinda Divamillenia2, Nurmawati Fatimah3
1Neurologist Consultant, Universitas Airlangga, Dr. Soetomo General Hospital, Universitas Airlangga Hospital, Surabaya, Inonesia.
Background:
Stroke is a neurological deficit due to vascular disorders. Microglia are the first line of defense against brain injury. Anti-inflammatory cytokines activate M2 microglia, which upregulate CD206. EGCG is abundant in green tea, which has an anti-inflammatory effect.
Objective:
To know the effect of green tea with its active compound EGCG on CD206 expression.
Settings And Design:
True experimental trial design.
Material And Methods:
Rattus Novergicus were divided into six groups: a negative control group (Sham), a positive control group (P0), MCAO mice given 10 mg/kg BW EGCG (P1), 20 mg/kg BW EGCG (P2), 30 mg/kg BW EGCG (P3), and 30 mg/kg BW standardized green tea extract (P4). CD206 expression was measured using immunohistochemistry and scored according to the Allred scoring guidelines.
Statistical Analysis Used:
Descriptive test, Levine test, Kolmogorov-Smirnoff test, Independent sample t test, Pearson correlation test.
Results:
We discovered that there is a significant difference in CD206 expression between the Sham and P0 groups (P < 0.05). In addition, there are significant differences in expression between the sham group and the other two groups (P1 and P2) (P < 0.05). Furthermore, when we compared the P0 group with each treatment group, we found that CD206 expression between P0-P2, P0-P3, P0-P4 are significantly different. There is a significant correlation between green tea with its active compound EGCG and CD206 expression enhancement. The correlation is positive.
Conclusions:
Green tea with EGCG active compound increases CD206 expression as an M2 marker in the Rattus norvegicus with MCAO model.
