@article {1646, title = {Evaluation of the Anticonvulsant, Anxiolytic, Sedative, and Neuroprotective Activities of Polysaccharides from Mycelium of Two Ganoderma Species}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {September 2021}, pages = {1161-1173}, type = {Research Article}, chapter = {1161}, abstract = {

Background: Ganoderma lucidum has been used as a medicinal mushroom since centuries in East Asia. Recent reports have shown that metabolites isolated from Ganoderma species have shown effects on central nervous system. Objective:\ To determine the neuroprotective, anticonvulsant, anxiolytic, and sedative effects of Ganoderma sp. and Ganoderma curtisii polysaccharides. Methods: Polysaccharides (Gsp-PS2 or Gc-PS2) were isolated from two Ganoderma mycelia submerged cultures. Acute toxicity effects of Gc-PS2 or Gsp-PS2 on mice were treated orally with doses of 50 - 2000 mg/kg. Anticonvulsant activity was determined using three chemoconvulsants: kainic acid (KA), strychnine, or pentylenetetrazole (PTZ). Anxiolytic-like effects were determined using the elevated plus maze test on mice. GABA release evoked by GC-PS2 or Gsp-PS2 content was determined by HPLC. Neuroprotective effects of Gsp-PS2 or Gc-PS2 were determined by glial activation, histopathological changes, and immunohistochemistry. Results: Gc-PS2 or Gsp-PS2 showed neuroprotective activity by diminishing neuronal death, reducing glial activation and Neu-N expression levels. Gsp-PS2 or Gc-PS2 inhibited convulsions in the KA model. An anxiolytic-like, but not a sedative effect was reported in mice treated with Gc-PS2 or Gsp-PS2. Polysaccharides Gc-PS2 or Gsp-PS2 evoked endogenous GABA release and increased its concentration within the incubation medium. Pretreatment with Gsp-PS2 or Gc-PS2 showed a reduction of the LPSinduced NO production. Gc-PS2 or Gsp-PS2 did not produce toxic effects. Conclusion:\ Ganoderma sp. or Ganoderma curtisii polysaccharides showed neuroprotective and anticonvulsant activities in animal models. The anticonvulsant activity may involve the GABAergic neurotransmision.

}, keywords = {a- and b-glucan, Anticonvulsant, GABA, Ganoderma curtissi, Ganoderma sp, Neuroprotective}, doi = {10.5530/pj.2021.13.149}, author = {Veronica Nunez-Urquiza and Juana Villeda-Hernandez and Elizur Montiel-Arcos and Isaac Tello and Victoria Campos-Pena and Maribel Herrera-Ruiz and Mar{\'\i}a del Carmen Guti{\'e}rrez and Vera Petricevich and Mar{\'\i}a Ang{\'e}lica Santana and Martha Navarro and Ang{\'e}lica Berenice Aguilar-Guadarrama and Gabriel Navarrete-V{\'a}zquez and Irene Perea-Arango and Ismael Leon-Rivera} } @article {988, title = {Neuroprotective Effects of Ganoderma curtisii Polysaccharides After Kainic Acid-Seizure Induced}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {September 2019}, pages = {1046-1054}, type = {Original Article}, chapter = {1046}, abstract = {

Background: Epilepsy is one of the major neurological disorders affecting world population. Although, some Ganoderma species have shown neuroprotective activities, the effects of polysaccharides isolated from Ganoderma curtisii on epileptic seizures have not been reported. Objective: The aims of the present study were to determine whether treatment with a polysaccharide fraction (GCPS-2) from a Mexican Ganoderma curtisii strain can reduce seizures, and the increases in the levels of apoptotic molecules and inflammatory cytokines in kainic acid-induced seizure mouse model. Materials and Methods: Rats were separated in groups: Control group received 2.5\% Tween 20 solution; GCPS-2 groups were administered GCPS-2 (10, 40, or 80 mg/kg); KA group received KA 10 mg/kg; GCPS-2+KA received GCPS- 2 and 30 min later KA. Pathological changes in neuronal morphology, expression of B-cell lymphoma-2, and pro-inflammatory cytokines (interleukin1-β and tumor necrosis factor-α) in the rat hippocampus and cortex were determined by immunohistochemistry. Results: Ganoderma curtisii soluble polysaccharides (GCPS-2) inhibited convulsions in rats. Moreover, treatment with GCPS-2 reduced the increased levels of apoptotic signaling molecules (Bcl-2) and proinflammatory mediators (in the kainic acid-treated hippocampus and cortex). Conclusion: Ganoderma curtisii soluble polysaccharides have a neuroprotective potential against epilepsy, partially through its ability to inhibit neurotoxic events in the in vivo hippocampus and cortex.

}, keywords = {Anti-inflammatory, Anticonvulsant, Ganoderma curtisii, Neuroprotective, β-glucan}, doi = {10.5530/pj.2019.11.164}, author = {Ismael Leon-Rivera and Juana Villeda-Hernandez and Elizur Montiel-Arcos and Isaac Tello and Maria Yolanda Rios and Samuel Estrada-Soto and Angelica Berenice Aguilar and Veronica Nunez-Urquiza and Jazmin Mendez-Miron and Victoria Campos-Pena and Sergio Hidalgo-Figueroa and Eva Hernandez and Gerardo Hurtado} }