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Advanced Neurology                                             Tetrapleura tetraptera protects the hippocampus




            A                      B









            C                      D


                                                               Figure 5. Neuron-specific enolase-positive cell count in the hippocampal
                                                               cornu ammonis 3 region of the experimental groups. A repeated measures
                                                               analysis of variance and Tukey’s post-hoc tests were performed. Values
                                                               are expressed as mean±standard error of the mean. Notes: Sample size
                                                               of per group: Control=3; TT=3; PTZ=3; PTZ+SV=3; PTZ+TT (low)=3;
                                                               PTZ+TT (int)=3; PTZ+TT (high)=3. *,**, and ***Indicate significant
             E                     F                           differences from the control at p<0.05, p<0.01, and p<0.001, respectively.
                                                               b,c,e,f,g Significantly different from TT, PTZ, PTZ+TT (low), PTZ+TT (int),
                                                               and PTZ+TT (high), respectively, at p<0.05.
                                                               Abbreviations: PTZ: pentylenetetrazol; SV: Sodium valproate;
                                                               TT: Tetrapleura tetraptera.


                                                                A                     B


                         G


                                                                C                     D






            Figure 4. Sections of the hippocampal cornu ammonis 3 with neuron-
            specific enolase (NSE)-positive cells (brown staining; scale bars: 75 μm;   E  F
            magnification power: ×400). (A) Control group with NSE-positive cells.
            (B)  Tetrapleura tetraptera group  showing increased intensity of NSE
            expression. (C) Pentylenetetrazol group showing increased intensity
            of  NSE  expression.  (D)  Sodium  valproate-pretreated  group  showing
            reduced intensity of NSE expression. (E) Low-dose  T. tetraptera-
            pretreatment group showing slightly increased NSE expression.
            (F and G) Intermediate- and high-dose T. tetraptera-pretreatment groups   G
            showing reduced NSE expression intensity.
            Abbreviations: M: Molecular; P: Polymorphic layers; Py: Pyramidal layer.

            nutrition, offering antioxidant properties that help protect
            cells from oxidative stress, among other benefits. 49-51  The
            combination of these phytochemicals contributes to the   Figure 6. Sections of the hippocampal cornu ammonis 3 showing glial
            diverse range of beneficial physiological activities associated   fibrillary acidic protein (GFAP)-positive cells (brown staining; scale bar:
            with  T.  tetraptera. 28,31,52  The present results corroborate   75 μm; magnification power: ×400). (A and B) Control and Tetrapleura
                                                               tetraptera groups showing expression of GFAP. (C) Pentylenetetrazol
            previous findings 52,53  that reported the presence of similar   group showing decreased expression of GFAP. (D  and E) Sodium
            phytochemical profiles in both the aqueous and ethanol   valproate and low-dose T. tetraptera-pretreated groups showing decreased
            extracts of T. tetraptera.                         expression of GFAP. (F and G) Intermediate- and high-dose T. tetraptera-
                                                               pretreated groups showing decreased expression of GFAP.
              The safety of T. tetraptera was assessed through acute   Abbreviations: M: Molecular; P: Polymorphic layers; Py: Pyramidal
            toxicity testing.  The result indicated an  oral LD  of   layer.
                                                      50


            Volume 4 Issue 1 (2025)                         87                               doi: 10.36922/an.6862
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