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Abstract Title:

White Button Mushroom, Agaricus bisporus (Agaricomycetes), and a Probiotics Mixture Supplementation Correct Dyslipidemia without Influencing the Colon Microbiome Profile in Hypercholesterolemic Rats.

Abstract Source:

Int J Med Mushrooms. 2020 ;22(3):235-244. PMID: 32479018

Abstract Author(s):

Farhan Asad, Haseeb Anwar, Hadi M Yassine, Muhammad Irfan Ullah, Aziz Rahman, Zahid Kamran, Muhammad Umar Sohail

Article Affiliation:

Farhan Asad

Abstract:

Consumption of foods rich in dietary fiber has attracted considerable attention for lowering blood cholesterol and triglycerides through attenuation of gut microbiome. Diets rich in fiber may provide substrates for microbes to digest and proliferate. In response, products of microbial digestion enter systemic circulation and support host energy homeostasis. In the present study, rats with hypercholesterolemia (HC) were supplemented with probiotics (PB) and Agaricus bisporus mushroom to examine the antidyslipidemia effects. Forty adult rats were divided into five treatment groups. The rats in the control group were fed only a chow maintenance diet (CON; n = 8), whereas an atherogenic diet (chow diet supplemented with 1.5% cholesterol and 0.5% cholic acid) was offered to the remaining rats to induce hypercholesterolemia (HC group; n = 32). Rats developed HC following a 24-day continuous supplementation with the atherogenic diet. From day 25 onward, the HC group was further divided into HC-CON, HC-PB (supplemented with PB at 1 mg/rat/day), HC-AB (supplemented with A. bisporus at 5% of diet), and HC-AB.PB (supplemented with both A. bisporus and PB). After 6 weeks of supplementation, rats were killed to collect blood to determine serum lipid profile, oxidative stress, and for metagenomics analysis of colon contents. Results showed that all supplementations corrected HC-induced oxidative stress. Furthermore, A. bisporus supplementation corrected HC-induced dyslipidemia (P≤ .05). Blautia and Bifidobacterium were the most dominant bacterial genera in HC-AB and HC-PB groups, respectively. Phylum Firmicutes and class Clostridia predominantly occupied the gut microbiome in all groups. However, no significant differences were observed in microbiome diversity and clustering patterns among study groups. In conclusion, supplementation of A. bisporus mushroom and probiotics can lower oxidative stress and dyslipidemia with partial effects on the phylogenetic makeup in the gut microbiome.

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