Review Article

Neuroprotective Phytochemicals in Experimental Ischemic Stroke: Mechanisms and Potential Clinical Applications

Table 5

Neuroprotective activity of other phenols and their mechanisms and targetsc.

CompoundsMechanisms and targetsRef.

Other phenols (20)
 CreosolAntiexcitotoxicity; Ca2+ influx↓[243]
 CurcuminAntiautophagy: PI3K/Akt/mTOR↑; anti-inflammation: TLR4/p38/MAPK↓; antiapoptosis; GLUT1 and GLUT3↑; neurogenesis: Notch signaling pathway↑; antioxidation: Akt/Nrf2↑; mitochondrial protection: SIRT1↑; BBB protection[10, 96, 244249]
 CannabidiolBBB protection; anti-inflammation; Na+/Ca2+ exchangers↑; antiapoptosis; antiexcitotoxicity; metabolic derangement↓[250252]
 HydroxytyrosolAnti-inflammation; BDNF↑[253]
 ActeosideAntioxidation; antiapoptosis[254]
 HydroquinoneBBB protection: SMI-71↑, GLUT-1↑, ZO-1↓, occludin degradation↓[255]
 Lyciumamide AAntioxidation: PKCε/Nrf2/HO-1↑; antiapoptosis[256]
 OleuropeinAntiapoptosis: Bcl-2/Bax↑, Akt↑/GSK3β[257, 258]
 SalidrosideAnti-inflammation: microglial M2 polarization↑, PI3K↑/PKB↑/Nrf2↑/NF-κB↓, PI3K/Akt/HIFα↑; antiapoptosis: BDNF/PI3K/Akt↑; complement C3 activation↓; Egrs expression↑[71, 259264]
 6-ShogaolAnti-inflammation: CysLT1R↓, MAPK↓[265]
 4-Hydroxybenzyl alcoholAntioxidation[266]
 4-Methoxy benzyl alcoholBBB protection: NOS pathway↓, AQP-4↓, tight junction↑[267]
 CinnamophilinGray and white matter damage↓[268]
 HyperforinTRPC6/MEK/Erk/CREB↑; TRPC6/CaMKIV/CREB↑[269]
 PunicalaginAntioxidation; anti-inflammation; antiapoptosis[270, 271]
 Caffeic acidAntioxidation; anti-inflammation: 5-LOX↓; loss of neuronal cells↓; synaptic density and plasticity↑[80, 272]
 Ferulic acidPeroxiredoxin-2↑; thioredoxin↑[273]
 Gallic acidAntiapoptosis and mitochondrial protection: Erk↑/cyclophilin D↓/mPTP↓[99, 274]
 Rosmarinic acidAnti-inflammation: HMGB1/NF-κB↓; synaptogenic activity↑; BDNF↑; BBB protection[275, 276]
 Salvianolic acid AAntioxidation; anti-inflammation; metabolic dysfunction↓[277]

cNotes: ↑: activation or upregulation; ↓: inhibition or downregulation. Abbreviations do not appear in the text. CysLT1R: cysteinyl leukotriene receptor 1; ZO-1: zonula occludens 1.