Effects of Mexican Ganoderma lucidum extracts on liver, kidney, and the gut microbiota of Wistar rats: A repeated dose oral toxicity study.

Well-characterized and standardized extracts of a Mexican genotype of Ganoderma lucidum (Gl), a medicinal mushroom, cultivated on oak sawdust (Gl-1) or oak sawdust plus acetylsalicylic acid (Gl-2, ASA), have been shown to exert antioxidant, hypocholesterolemic, anti-inflammatory, prebiotic, and anti...

Full description

Bibliographic Details
Main Authors: María E Meneses, Daniel Martínez-Carrera, Laura González-Ibáñez, Nimbe Torres, Mónica Sánchez-Tapia, Claudia C Márquez-Mota, Gilmar Rendón, Vladimir Mitzi, Alfredo Morales, Isaac Tello-Salgado, Armando R Tovar
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0283605
_version_ 1797843208262123520
author María E Meneses
Daniel Martínez-Carrera
Laura González-Ibáñez
Nimbe Torres
Mónica Sánchez-Tapia
Claudia C Márquez-Mota
Gilmar Rendón
Vladimir Mitzi
Alfredo Morales
Isaac Tello-Salgado
Armando R Tovar
author_facet María E Meneses
Daniel Martínez-Carrera
Laura González-Ibáñez
Nimbe Torres
Mónica Sánchez-Tapia
Claudia C Márquez-Mota
Gilmar Rendón
Vladimir Mitzi
Alfredo Morales
Isaac Tello-Salgado
Armando R Tovar
author_sort María E Meneses
collection DOAJ
description Well-characterized and standardized extracts of a Mexican genotype of Ganoderma lucidum (Gl), a medicinal mushroom, cultivated on oak sawdust (Gl-1) or oak sawdust plus acetylsalicylic acid (Gl-2, ASA), have been shown to exert antioxidant, hypocholesterolemic, anti-inflammatory, prebiotic, and anticancer properties. However, toxicity analyses still need to be carried out. Different doses of these Gl-1 or Gl-2 extracts were administered to Wistar rats for 14 days in a repeated dose oral toxicity study. We assessed the external clinical signs, biochemical parameters, liver and kidney tissues, injury and inflammation biomarkers, gene expression, inflammatory responses, proinflammatory mediators, and gut microbiota. Gl extracts had no significant adverse, toxic or harmful effects on male and female rats compared to the control groups. No injury or dysfunction were recorded in the kidney or liver, as there were no significant abnormal variations in organ weight, tissue histopathology, serum biochemical parameters (C-reactive protein, creatinine, urea, glucose, ALT and AST transaminases, TC, LDL-c, TG, HDL-c), urinary parameters (creatinine, urea nitrogen, albumin, the albumin-to-creatinine ratio, glucose), injury and inflammatory biomarkers (KIM-1/TIM-1, TLR4, and NF-кB protein expression; IL-1β, TNF-α and IL-6 gene expression), or the expression of genes linked to cholesterol metabolism (HMG-CoA, Srebp2, Ldlr). Gl-1 and Gl-2 extracts showed prebiotic effects on the gut microbiota of male and female Wistar rats. Bacterial diversity and relative bacterial abundance (BRA) increased, positively modulating the Firmicutes/Bacteroidetes ratio. The ASA (10 mM) added to the substrate used for mushroom cultivation changed properties and effects of the Gl-2 extract on Wistar rats. The no-observed-adverse-effect-level (NOAEL) was 1000 mg/kg body weight/day of Gl-1 or Gl-2 extracts. Clinical trials are recommended for further exploring the potential therapeutic applications of studied extracts.
first_indexed 2024-04-09T17:01:10Z
format Article
id doaj.art-dd1710f06ef64545b86399aeb0cd0016
institution Directory Open Access Journal
issn 1932-6203
language English
last_indexed 2024-04-09T17:01:10Z
publishDate 2023-01-01
publisher Public Library of Science (PLoS)
record_format Article
series PLoS ONE
spelling doaj.art-dd1710f06ef64545b86399aeb0cd00162023-04-21T05:32:26ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01184e028360510.1371/journal.pone.0283605Effects of Mexican Ganoderma lucidum extracts on liver, kidney, and the gut microbiota of Wistar rats: A repeated dose oral toxicity study.María E MenesesDaniel Martínez-CarreraLaura González-IbáñezNimbe TorresMónica Sánchez-TapiaClaudia C Márquez-MotaGilmar RendónVladimir MitziAlfredo MoralesIsaac Tello-SalgadoArmando R TovarWell-characterized and standardized extracts of a Mexican genotype of Ganoderma lucidum (Gl), a medicinal mushroom, cultivated on oak sawdust (Gl-1) or oak sawdust plus acetylsalicylic acid (Gl-2, ASA), have been shown to exert antioxidant, hypocholesterolemic, anti-inflammatory, prebiotic, and anticancer properties. However, toxicity analyses still need to be carried out. Different doses of these Gl-1 or Gl-2 extracts were administered to Wistar rats for 14 days in a repeated dose oral toxicity study. We assessed the external clinical signs, biochemical parameters, liver and kidney tissues, injury and inflammation biomarkers, gene expression, inflammatory responses, proinflammatory mediators, and gut microbiota. Gl extracts had no significant adverse, toxic or harmful effects on male and female rats compared to the control groups. No injury or dysfunction were recorded in the kidney or liver, as there were no significant abnormal variations in organ weight, tissue histopathology, serum biochemical parameters (C-reactive protein, creatinine, urea, glucose, ALT and AST transaminases, TC, LDL-c, TG, HDL-c), urinary parameters (creatinine, urea nitrogen, albumin, the albumin-to-creatinine ratio, glucose), injury and inflammatory biomarkers (KIM-1/TIM-1, TLR4, and NF-кB protein expression; IL-1β, TNF-α and IL-6 gene expression), or the expression of genes linked to cholesterol metabolism (HMG-CoA, Srebp2, Ldlr). Gl-1 and Gl-2 extracts showed prebiotic effects on the gut microbiota of male and female Wistar rats. Bacterial diversity and relative bacterial abundance (BRA) increased, positively modulating the Firmicutes/Bacteroidetes ratio. The ASA (10 mM) added to the substrate used for mushroom cultivation changed properties and effects of the Gl-2 extract on Wistar rats. The no-observed-adverse-effect-level (NOAEL) was 1000 mg/kg body weight/day of Gl-1 or Gl-2 extracts. Clinical trials are recommended for further exploring the potential therapeutic applications of studied extracts.https://doi.org/10.1371/journal.pone.0283605
spellingShingle María E Meneses
Daniel Martínez-Carrera
Laura González-Ibáñez
Nimbe Torres
Mónica Sánchez-Tapia
Claudia C Márquez-Mota
Gilmar Rendón
Vladimir Mitzi
Alfredo Morales
Isaac Tello-Salgado
Armando R Tovar
Effects of Mexican Ganoderma lucidum extracts on liver, kidney, and the gut microbiota of Wistar rats: A repeated dose oral toxicity study.
PLoS ONE
title Effects of Mexican Ganoderma lucidum extracts on liver, kidney, and the gut microbiota of Wistar rats: A repeated dose oral toxicity study.
title_full Effects of Mexican Ganoderma lucidum extracts on liver, kidney, and the gut microbiota of Wistar rats: A repeated dose oral toxicity study.
title_fullStr Effects of Mexican Ganoderma lucidum extracts on liver, kidney, and the gut microbiota of Wistar rats: A repeated dose oral toxicity study.
title_full_unstemmed Effects of Mexican Ganoderma lucidum extracts on liver, kidney, and the gut microbiota of Wistar rats: A repeated dose oral toxicity study.
title_short Effects of Mexican Ganoderma lucidum extracts on liver, kidney, and the gut microbiota of Wistar rats: A repeated dose oral toxicity study.
title_sort effects of mexican ganoderma lucidum extracts on liver kidney and the gut microbiota of wistar rats a repeated dose oral toxicity study
url https://doi.org/10.1371/journal.pone.0283605
work_keys_str_mv AT mariaemeneses effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy
AT danielmartinezcarrera effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy
AT lauragonzalezibanez effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy
AT nimbetorres effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy
AT monicasancheztapia effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy
AT claudiacmarquezmota effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy
AT gilmarrendon effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy
AT vladimirmitzi effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy
AT alfredomorales effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy
AT isaactellosalgado effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy
AT armandortovar effectsofmexicanganodermalucidumextractsonliverkidneyandthegutmicrobiotaofwistarratsarepeateddoseoraltoxicitystudy