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Anti-Inflammatory Activity of Pleurotus ostreatus, a Culinary Medicinal Mushroom, in Wistar Rats.

ABSTRACT: Context. Pleurotus ostreatus (P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. Objectives:The present study investigates the anti-inflammatory potential of P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. Materials and Methods. Anti-inflammatory activity was evaluated using suspensions of freeze-dried and powdered (SFDP) P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. in vivo and in vitro assays. Results:At doses of 500-1000?mg/kg, the SFDP of P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. in vitro assays. P < 0.05). Dose-dependent inhibition of NO production was seen with in vitro assays. P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. r?=?0.95; P < 0.05). Dose-dependent inhibition of NO production was seen with Discussion and Conclusion. The promising activity of culinary mushroom P.o against inflammation suggests its potential application as a functional food during inflammatory conditions.P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae.

SUBMITTER: Jayasuriya WJABN

PROVIDER: S-EPMC7077046 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Anti-Inflammatory Activity of Pleurotus ostreatus, a Culinary Medicinal Mushroom, in Wistar Rats.

Jayasuriya W J A Banukie N WJABN Handunnetti Shiroma M SM Wanigatunge Chandanie A CA Fernando Gita H GH Abeytunga D Thusitha U DTU Suresh T Sugandhika TS

Evidence-based complementary and alternative medicine : eCAM 20200305

Context. Pleurotus ostreatus (P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae.<h4>Objectives</h4>The present study investigates the anti-inflammatory potential of P.o) is a culinary mushroom which is commonly called as "oyster mushroom" belonging to the Basidiomycetous fungi of the order Agaricales and family Pleurotaceae. Materials and Methods. Anti ...[more]

PMID: 32215044

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Project description:Reactive oxygen species reacts with numerous molecules in the body system causing oxidative damage, which requires antioxidants to ameliorate. Pleurotus ostreatus, a highly nutritious edible mushroom, has been reported to be rich in bioactive compounds. This study evaluated the comparative antioxidant activity and phytochemical contents of five extracts of P. ostreatus: aqueous (AE), chloroform (CE), ethanol (EE), methanol (ME) and n-hexane (HE). The phytochemical composition and antioxidant activity of the extracts were determined using standard in-vitro antioxidant assay methods. Results showed that the extracts contained alkaloids, tannins, saponins, flavonoids, terpenoids, phenolics, cardiac glycosides, carbohydrates, anthrocyanins, and betacyanins in varied amounts. CE had the highest flavonoid content (104.83 ± 29.46 mg/100 g); AE gave the highest phenol content of 24.14 ± 0.02 mg/100 g; tannin was highest in EE (25.12 ± 0.06 mg/100 g); HE had highest amounts of alkaloids (187.60 ± 0.28 mg/100 g) and saponins (0.16 ± 0.00 mg/100 g). Antioxidant analyses revealed that CE had the best hydroxyl radical activity of 250% at 100 µg/ml and ferric cyanide reducing power of 8495 µg/ml; ME gave the maximum DPPH activity (87.67%) and hydrogen peroxide scavenging activity (65.58%) at 500 µg/ml; EE had the highest nitric oxide radical inhibition of 65.81% at 500 µg/ml and ascorbate peroxidase activity of 1.60 (iU/l). AE had the best total antioxidant capacity (5.27 µg/ml GAE at 500 µg/ml) and ferrous iron chelating activity (99.23% at 100 µg/ml) while HE gave the highest guaiacol peroxidase activity of 0.20(iU/l). The comparative phytochemical and antioxidant characteristics (IC50) of the extracts followed the order: CE > AE > EE > ME > HE. Overall, chloroform was the best extraction solvent for P. ostreatus. The high content of phenolic compounds, flavonoids, and alkaloids in P. ostreatus makes it a rich source of antioxidants and potential candidate for the development of new therapies for a variety of oxidative stress-related disorders.

Project description:BackgroundDengue is a mosquito-borne viral infection that has become a major public health concern worldwide. Presently, there is no specific vaccine or treatment available for dengue viral infection.MethodsLignosus rhinocerotis, Pleurotus giganteus, Hericium erinaceus, Schizophyllum commune and Ganoderma lucidium were selected for evaluation of their in-vitro anti-dengue virus serotype 2 (DENV-2) activities. Hot aqueous extracts (HAEs), ethanol extracts (EEs), hexane soluble extracts (HSEs), ethyl acetate soluble extracts (ESEs) and aqueous soluble extracts (ASEs) were prepared from the selected mushrooms. The cytotoxic effects of the extracts were evaluated by the MTT assay. The anti-DENV-2 activities of the extracts were evaluated in three different assays: simultaneous, attachment and penetration assays were perfomed using plaque reduction assays and RT-qPCR assays. The effect of the addition time on viral replication was assessed by the time of addition assay, and a virucidal assay was carried out to evaluate the direct effect of each mushroom extract on DENV-2. The chemical composition of glucans, and the protein and phenolic acid contents in the extracts were estimated.ResultsWe found that the HAEs and ASEs of L. rhinocerotis, P. giganteus, H. erinaceus and S. commune were the least toxic to Vero cells and showed very prominent anti-DENV2 activity. The 50% inhibitory concentration (IC50) values of the ASEs ranged between 399.2-637.9 μg/ml, while for the HAEs the range was 312.9-680.6 μg/ml during simultaneous treatment. Significant anti-dengue activity was also detected in the penetration assay of ASEs (IC50: 226.3-315.4 μg/ml) and HAEs (IC50: 943.1-2080.2 μg/ml). Similarly, we observed a marked reduction in the expression levels of the ENV and NS5 genes in the simultaneous and penetration assays of the ASEs and HAEs. Time-of-addition experiments showed that the highest percent of anti-DENV2 activity was observed when the mushroom extracts were added immediately after virus adsorption. None of the extracts exhibited virucidal effect. Chemical composition analysis showed that the major components in the mushroom HAEs and ASEs were glucan (beta D-glucan) and proteins, however, there was no significant correlation between the anti-dengue activity and the concentration of glucans and proteins.ConclusionThese findings demonstrated the potential of mushroom extracts as anti-dengue therapeutic agents with less toxic effects.

Project description:The edible oyster mushroom Pleurotus ostreatus is one of the most cultivated species worldwide. Morphogenesis associated with the maturation of fruit bodies is controlled by two unlinked loci of sexual compatibility matA and matB with multiple alleles (tetrapolar system of sexual compatibility). Quantitative analysis of the alleles of mating compatibility loci in 17 natural isolates collected in the Moscow region was performed in mon-mon (monokaryons-monokaryon) and di-mon (dikaryon-monokaryon) crossings. Four monokaryotic testers strains which were heteroallelic at both mating type loci were obtained for each of the five natural mushroom isolates by using original technique of sterile spore prints on Petri dishes and mon-mon crossing. Twelve natural isolates were crossed via di-mon mating with the four monokaryotic testers M-38. Genetic analysis of the alleles of sexual compatibility loci in 17 natural isolates revealed multiple alleles at both loci: at least ten alleles at matA locus and eight alleles at matB locus. Structural organization analysis of the matA locus was performed in silico for homokaryotic strains PC9 and PC15 based on the whole-genome sequencing data available at DOE Joint Genome Institute. The matA locus has an extremely divergent structure: there are one copy of the homeodomain gene hd1 and one copy of the hd2 gene in the PC9 strain, whereas the matA locus of the PC15 strain is composed by two copies of hd1.1 and hd1.2 genes (class HD1 homeodomain proteins) and one copy of hd2 gene (class HD2 proteins). Comprehensive analysis of amino acid sequences of HD1 and HD2 homeodomain proteins demonstrated that the proteins have a globular structure with the nuclear localization and contain a variable N-terminus and a more conserved DNA-binding domain with a specific conserved motif WFXNXR in the third ɑ-helix. The results suggest that multiple alleles of the matA locus of sexual compatibility in basidiomycete fungi is achieved due to both different copy number of the coding hd genes within the locus and the variability of the coding gene sequences.

Dataset Information

Anti-Inflammatory Activity of Pleurotus ostreatus, a Culinary Medicinal Mushroom, in Wistar Rats.

Publications

Anti-Inflammatory Activity of <i>Pleurotus ostreatus</i>, a Culinary Medicinal Mushroom, in Wistar Rats.

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