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1.
Basic Clin Pharmacol Toxicol ; 134(4): 472-484, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38368905

RESUMEN

In this study, the impact of chitosan (CS) and maitake (GF) nanoparticles towards the renal toxicity induced by Ehrlich ascites carcinoma (EAC) in vivo model was conducted. Besides benchmark negative control group, EAC model was constructed by intraperitoneal injection (i.p.) of 2.5 × 106 cells. Alongside positive control, two groups of EAC-bearing mice received 100 mg/kg of CS and GF nanoparticles/body weight daily for 14 days. The kidney function was conducted by measuring urea, creatinine, ions, (anti)/oxidative parameters and DNA damage. Also, measuring immunoreactivity of P53, proliferating cell nuclear antigen (PCNA), and B-cell lymphoma 2 (Bcl-2) and apoptosis protein. The outcomes illustrated notable kidney toxicity, which indicated by elevations in urea, creatinine, oxidative stress, DNA damage and induction of apoptosis. These events were supported by the drastic alteration in kidney structure through histological examination. Administration of CS and GF nanoparticles was able to enhance the antioxidant power, which further reduced oxidative damage, DNA injury, and apoptosis. These results indicated the protective and therapeutic role of biogenic chitosan and maitake nanoparticles against nephrotoxicity.


Asunto(s)
Carcinoma de Ehrlich , Quitosano , Grifola , Animales , Ratones , Ascitis/metabolismo , Quitosano/uso terapéutico , Carcinoma de Ehrlich/tratamiento farmacológico , Carcinoma de Ehrlich/patología , Creatinina , Daño del ADN , Urea , Apoptosis
2.
Int J Med Mushrooms ; 25(5): 31-48, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37183917

RESUMEN

This paper aims to characterize the knowledge field of Grifola frondosa and analyze its research themes and trends. CiteSpace, a powerful bibliometric analysis tool, was adopted to visualize the knowledge field of G. frondosa research for facilitating this current study. A total of 747 articles and reviews retrieved from the Web of Science Core Collection (WoSCC) database between 1998 and 2022 were analyzed by CiteSpace. It was found that China and Japan are the most influential countries in G. frondosa research. Secondly, polysaccharide, bioactivity, structural characterization, and submerged culture are the main themes of G. frondosa research, among which bioactivity and structural characterization are the current research hotspots. Finally, selenium polysaccharide and gut microbiota may be the emerging trends in G. frondosa research in the future. This study could help researchers discern the evolution and future trends of G. frondosa research and provide a reference for related research work.


Asunto(s)
Agaricales , Grifola , Grifola/química , Polisacáridos/química , Antioxidantes/química , Adyuvantes Inmunológicos
3.
Int J Med Mushrooms ; 25(2): 11-22, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36749053

RESUMEN

Neurodegeneration is one of the most common manifestations in an aging population. The occurrence of oxidative stress and neuroinflammation are the main contributors to the phenomenon. Neurologic conditions such as Alzheimer's disease (AD) and Parkinson's disease (PD) are challenging to treat due to their irreversible manner as well as the lack of effective treatment. Grifola frondosa (Dicks.: Fr.) S.F. Gray, or maitake mushroom, is believed to be a potential choice as a therapeutic agent for neurodegenerative diseases. G. frondosa is known to be a functional food that has a wide variety of medicinal purposes. Thus, this review emphasizes the neuroprotective effects and the chemical composition of G. frondosa. Various studies have described that G. frondosa can protect and proliferate neuronal cells through neurogenesis, antioxidative, anti-inflammatory, and anti-ß-amyloid activities. The mechanism of action behind these therapeutic findings in various in vitro and in vivo models has also been intensively studied. In this mini review, we also summarized the chemical composition of G. frondosa to provide a better understanding of the presence of nutritional compounds in G. frondosa.


Asunto(s)
Agaricales , Grifola , Grifola/química , Antioxidantes , Adyuvantes Inmunológicos
4.
Nutrients ; 14(18)2022 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-36145189

RESUMEN

Grifola frondosa (GF), a species of Basidiomycotina, is widely distributed across Asia and has been used as an immunomodulatory, anti-bacterial, and anti-cancer agent. In the present study, the pharmacological activity of the GF extract against an ecotoxicological industrial chemical, bisphenol A (BPA) in normal human dermal fibroblasts (NHDFs), was investigated. GF extract containing naringin, hesperidin, chlorogenic acid, and kaempferol showed an inhibitory effect on cell death and inflammation induced by BPA in the NHDFs. For the cell death caused by BPA, GF extract inhibited the production of reactive oxygen species responsible for the unique activation of the extracellular signal-regulated kinase. In addition, GF extract attenuated the expression of apoptosis-related proteins (Bax, Bcl-2, and cleaved caspase-3) and the pro-inflammatory cytokine IL-1ß by the suppression of the redox-sensitive transcription factor, nuclear factor-kappa B (NF-κB) in BPA-treated NHDFs. For the inflammation triggered by BPA, GF extract blocked the inflammasome-mediated caspase-1 activation that leads to the secretion of IL-1ß protein. These results indicate that the GF extract is a functional antioxidant that prevents skin fibroblastic pyroptosis induced by BPA.


Asunto(s)
Disruptores Endocrinos , Grifola , Hesperidina , Antioxidantes/farmacología , Compuestos de Bencidrilo , Caspasa 3 , Ácido Clorogénico , Citocinas/metabolismo , Quinasas MAP Reguladas por Señal Extracelular , Fibroblastos/metabolismo , Humanos , Inflamasomas , Inflamación/inducido químicamente , Quempferoles , FN-kappa B/metabolismo , Fenoles , Extractos Vegetales/farmacología , Proteínas Proto-Oncogénicas c-bcl-2 , Especies Reactivas de Oxígeno/metabolismo , Proteína X Asociada a bcl-2/metabolismo
5.
Molecules ; 27(16)2022 Aug 10.
Artículo en Inglés | MEDLINE | ID: mdl-36014338

RESUMEN

Natural cosmetics are becoming more and more popular every day. For this reason, this work investigates the properties of mushroom extracts, which are not as widely used in the cosmetics industry as plant ingredients. Water extracts of Grifolafrondosa (Maitake), Hericiumerinaceus (Lion's Mane) and Ganoderma lucidum (Reishi) were tested for their antioxidant properties, bioactive substances content, skin cell toxicity, ability to limit TEWL, effect on skin hydration and pH, and skin irritation. Our research showed that Maitake extract contained the highest amount of flavonoids and phenols, and also showed the most effective scavenging of DPPH and ABTS radicals as well as Chelation of Fe2+ and FRAP radicals, which were 39.84% and 82.12% in a concentration of 1000 µg/mL, respectively. All tested extracts did not increase the amount of ROS in fibroblasts and keratinocytes. The addition of mushroom extracts to washing gels reduced the irritating effect on skin, and reduced the intracellular production of free radicals, compared with the cosmetic base. Moreover, it was shown that the analyzedcosmetics had a positive effect on the pH and hydration of the skin, and reduced TEWL.


Asunto(s)
Cosméticos , Grifola , Reishi , Antioxidantes/química , Antioxidantes/farmacología , Geles , Extractos Vegetales/farmacología , Reishi/química
6.
Front Endocrinol (Lausanne) ; 13: 1105073, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36733799

RESUMEN

Background: Grifola frondosa (G. frondosa) is a fungus with good economic exploitation prospects of food and medicine homologation. This study aims to investigate the effects of G. frondosa powder suspension (GFPS) on the intestinal contents microbiota and the indexes related to oxidative stress and energy metabolism in mice, to provide new ideas for developing G. frondosa weight loss products. Methods: Twenty Kunming mice were randomly divided into control (CC), low-dose GFPS (CL), medium-dose GFPS (CM), and high-dose GFPS (CH) groups. The mice in CL, CM, and CH groups were intragastrically administered with 1.425 g/(kg·d), 2.85 g/(kg·d), and 5.735 g/(kg·d) GFPS, respectively. The mice in CC group were given the same dose of sterile water. After 8 weeks, liver and muscle related oxidative stress and energy metabolism indicators were detected, and the intestinal content microbiota of the mice was detected by 16S rRNA high-throughput sequencing. Results: After eight weeks of GFPS intervention, all mice lost weight. Compared with the CC group, lactate dehydrogenase (LDH) and malondialdehyde (MDA) contents in CL, CM, and CH groups were increased, while Succinate dehydrogenase (SDH) and Superoxide Dismutase (SOD) contents in the liver were decreased. The change trends of LDH and SDH in muscle were consistent with those in the liver. Among the above indexes, the change in CH is the most significant. The Chao1, ACE, Shannon, and Simpson index in CL, CM, and CH groups were increased. In the taxonomic composition, after the intervention with GFPS, the short-chain fatty acid (SCFA)-producing bacteria such as unclassified Muribaculaceae, Alloprevotella, and unclassified Lachnospiraceae increased. In linear discriminant analysis effect size (LEfSe) analysis, the characteristic bacteria in CC, CL, CM, and CH groups showed significant differences. In addition, some characteristic bacteria significantly correlated with related energy metabolism indicators. Conclusion: The preventive effect of G. frondosa on obesity is related to changing the structure of intestinal content microbiota and promoting the growth of SCFAs. While excessive intake of G. frondosa may not be conducive to the antioxidant capacity and energy metabolism.


Asunto(s)
Microbioma Gastrointestinal , Grifola , Ratones , Animales , Grifola/química , Grifola/metabolismo , ARN Ribosómico 16S/metabolismo , Ácidos Grasos Volátiles/metabolismo , Obesidad
7.
J Sci Food Agric ; 102(6): 2526-2537, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-34676564

RESUMEN

BACKGROUND: Selenium (Se)-enriched glycoproteins have been a research highlight for the role of both Se and glycoproteins in immunoregulation. Arsenic (As) is a toxicant that is potentially toxic to the immune function and consequently to human health. Several reports suggested that Se could reduce the toxicity of heavy metals. Moreover, more and more nutrients in food had been applied to relieve As-induced toxicity. Hence glycoproteins were isolated and purified from Se-enriched Grifola frondosa, and their preliminary characteristics as well as amelioration effect and mechanism on As3+ -induced immune toxicity were evaluated. RESULTS: Four factions, namely Se-GPr11 (electrophoresis analysis exhibited one band: 14.32 kDa), Se-GPr22 (two bands: 20.57 and 31.12 kDa), Se-GPr33 (three bands: 15.08, 20.57 and 32.78 kDa) and Se-GPr44 (three bands: 16.73, 32.78 and 42.46 kDa), were obtained from Se-enriched G. frondosa via DEAE-52 and Sephacryl S-400 column. In addition, Se-GPr11 and Se-GPr44 are ideal proteins that contain high amounts of almost all essential amino acids. Thereafter, the RAW264.7 macrophage model was adopted to estimate the effect of Se-GPr11 and Se-GPr44 on As3+ -induced immune toxicity. The results showed that the pre-intervention method was the best consequent and the potential mechanisms were, first, by improving the oxidative stress state (enhancing the activity of superoxide dismutase and glutathione peroxidase, decreasing the levels of reactive oxygen species and malondialdehyde); secondly, through nuclear factor-κB and mitogen-activated protein kinase-mediated upregulation cytokines (interleukin-2 and interferon-γ) secretion induced by As3+ . CONCLUSION: The results suggested Se-enriched G. frondosa may be a feasible supplement to improve health level of the As3+ pollution population. © 2021 Society of Chemical Industry.


Asunto(s)
Arsénico , Grifola , Selenio , Glutatión Peroxidasa/metabolismo , Glicoproteínas/farmacología , Grifola/química , Grifola/metabolismo , Humanos , Selenio/metabolismo
8.
Nutrients ; 13(11)2021 Nov 07.
Artículo en Inglés | MEDLINE | ID: mdl-34836223

RESUMEN

In recent years, food ingredients rich in bioactive compounds have emerged as candidates to prevent excess adiposity and other metabolic complications characteristic of obesity, such as low-grade inflammation and oxidative status. Among them, fungi have gained popularity for their high polysaccharide content and other bioactive components with beneficial activities. Here, we use the C. elegans model to investigate the potential activities of a Grifola frondosa extract (GE), together with the underlying mechanisms of action. Our study revealed that GE represents an important source of polysaccharides and phenolic compounds with in vitro antioxidant activity. Treatment with our GE extract, which was found to be nongenotoxic through a SOS/umu test, significantly reduced the fat content of C. elegans, decreased the production of intracellular ROS and aging-lipofuscin pigment, and increased the lifespan of nematodes. Gene expression and mutant analyses demonstrated that the in vivo anti-obesity and antioxidant activities of GE were mediated through the daf-2/daf-16 and skn-1/nrf-2 signalling pathways, respectively. Taken together, our results suggest that our GE extract could be considered a potential functional ingredient for the prevention of obesity-related disturbances.


Asunto(s)
Proteínas de Caenorhabditis elegans/metabolismo , Caenorhabditis elegans/fisiología , Proteínas de Unión al ADN/metabolismo , Suplementos Dietéticos , Factores de Transcripción Forkhead/metabolismo , Grifola , Longevidad , Factores de Transcripción/metabolismo , Tejido Adiposo/metabolismo , Envejecimiento , Animales , Fármacos Antiobesidad/farmacología , Antioxidantes/farmacología , Mezclas Complejas/farmacología , Lipofuscina/metabolismo , Factor 2 Relacionado con NF-E2/metabolismo , Especies Reactivas de Oxígeno/metabolismo , Transducción de Señal
9.
Pol Merkur Lekarski ; 49(293): 346-351, 2021 Oct 22.
Artículo en Inglés | MEDLINE | ID: mdl-34800021

RESUMEN

It is known that the violation of one or more functions of the liver, where the basic biochemical processes take place, is reflected in the functional state of many organs and systems, causing severe consequences. For the effective treatment of the hepatobiliary system diseases the drugs from fungi and plant materials are promising, the ingredients of which are close to natural metabolites, have different mechanisms of hepatoprotective action and, in general, can have a positive effect on liver function. AIM: The aim of the research was to investigate the hepatoprotective properties of the Maitake mushrooms thick extract in the experiment on rats with paracetamol (acetaminophen)-induced hepatitis. MATERIALS AND METHODS: The study was performed on 60 white male rats weighing 180-210 g and aged 6-6,5 months. Rats were divided into 10 groups, each of which included 6 animals. Acute hepatitis was simulated by acetaminophen intragastrically administering at a dose of 1250 mg/ kg of body weight 1 time per day as a suspension in 2% starch gel solution for 2 days. Correction of the toxic lesions was performed with a thick extract of Maitake mushrooms, which was administered intragastrically 2 hours before the introduction of acetaminophen and daily after the lesion at a dose of 150 mg/kg of body weight. "Silibor" (active basis - silymarin) was chosen as a comparison drug, which was administered according to the same scheme as Maitake extract at a dose of 20 mg/kg of animal body weight. On the 3rd, 7th and 10th days from the onset of the lesion, rats were euthanized using sodium barbamyl. Liver homogenate and blood serum were tested. Blood was taken from the hearts of animals. Endogenous intoxication of animals after the introduction of corrective factors was assessed by the activity of ALT, AST, GGTP, LF and the size of the thymol sample. All changes were confirmed by parametric and nonparametric methods of statistical analysis of the results of the study. RESULTS: The expressed cytolysis of hepatocytes, after administration to rats of toxicant, on the basis of research of the activity of aminotransferases, gamma-glutamyltranspeptidase, alkaline phosphatase and thymol sample size is proved. The results of the experiment were confirmed histologically. The introduction of a thick extract of Maitake mushrooms contributed to the normalization of the studied indicators. CONCLUSIONS: The application of the Maitake mushrooms thick extract as a corrective factor in the simulated acetaminophen hepatitis indicates its hepato-, cytoprotective and antioxidative properties.


Asunto(s)
Enfermedad Hepática Inducida por Sustancias y Drogas , Grifola , Hepatitis , Enfermedades Metabólicas , Acetaminofén/toxicidad , Animales , Enfermedad Hepática Inducida por Sustancias y Drogas/tratamiento farmacológico , Enfermedad Hepática Inducida por Sustancias y Drogas/etiología , Hígado , Masculino , Extractos Vegetales/uso terapéutico , Ratas
10.
J Ethnopharmacol ; 280: 114395, 2021 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-34271115

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: The antitumor effects of Grifola frondosa/maitake polysaccharide (GFP) have been reported in many preclinical studies, especially in vivo experiments. The present meta-analysis aimed to provide an in vivo evidence and theoretical basis for future clinical trials by assessing the efficacy and underlying mechanisms of GFP in tumor treatment. MATERIALS AND METHODS: English and Chinese databases were examined to include animal experiments to study the antitumor activity of GFP. Literature screening, data extraction, and meta-analysis were conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. In addition, the Systematic Review Center for Laboratory animal Experimentation (SYRCLE) risk of bias (RoB) tool was used to assess the risk of bias of the included animal studies. RESULTS: Potentially relevant studies (442) were identified, and finally 24 eligible studies (all in English) were included. The meta-analysis revealed that GFP has significant effects in inhibiting tumor growth (high dose: mean difference (MD) = -1.34, 95% confidence interval (CI) = [-1.73, -0.95]; low dose: MD = -5.68, 95% CI = [-7.27, -4.09]), improving tumor remission rate (odds ratio = 25.59, 95% CI = [9.08, 72.11]), and enhancing immune function in both cellular (CD4+ T cell percentage: MD = 3.03, 95% CI = [1.16, 4.90]; CD8+ T cell percentage: MD = 1.10, 95% CI = [-0.29, 2.49]) and humoral immunity (MD and [95% CI] of interleukin (IL)-2, IL-12 and tumor necrosis factor-α were 7.86 [6.29, 9.44], 35.95 [5.18, 66.72], and 10.03 [8.71, 11.36], respectively), and the differences between the two groups of the above indicators were statistically significant (all P < 0.01) except CD8+ T cell percentage. Additionally, the quality of the included studies was not high, and the risk of bias mainly concentrated on selection, detection, and reporting biases. CONCLUSION: GFP is a potential candidate for tumor treatment and clinical trials. TRIAL REGISTRATION: The review protocol for this study was registered with the PROSPERO database before beginning the review process (CRD42018108897).


Asunto(s)
Antineoplásicos/farmacología , Grifola/química , Polisacáridos/farmacología , Animales , Antineoplásicos/administración & dosificación , Relación Dosis-Respuesta a Droga , Humanos , Neoplasias/tratamiento farmacológico , Polisacáridos/administración & dosificación , Polisacáridos/aislamiento & purificación
11.
Int J Med Mushrooms ; 23(4): 13-22, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33822504

RESUMEN

Osteoporosis is an important public health challenge. Several medicinal mushrooms are able to improve bone stability by influencing different steps of bone formation, mineralization, or resorption. In nearly all investigations, the effects have been shown in vitro or in animal assays and only very few in clinical studies. Positive results exist for medicinal mushrooms of the genera Cordyceps/Ophiocordyceps, Ganoderma, Grifola, Lentinula, Phellinus, Pleurotus, Taiwanofungus, Trametes, and Wolfiporia. The results for Hericium are not consistent. This article critically reviews these investigations and describes challenges for the future.


Asunto(s)
Ascomicetos , Basidiomycota , Huesos/fisiología , Osteoporosis/terapia , Animales , Huesos/metabolismo , Cordyceps , Grifola , Lentinula , Osteoporosis/tratamiento farmacológico , Osteoporosis/prevención & control , Trametes
12.
Nutrients ; 12(5)2020 May 08.
Artículo en Inglés | MEDLINE | ID: mdl-32397163

RESUMEN

Since the 1980s, medicinal effects have been documented in scientific studies with the related Basidiomycota mushrooms Agaricus blazei Murill (AbM), Hericium erinaceus (HE) and Grifola frondosa (GF) from Brazilian and Eastern traditional medicine. Special focus has been on their antitumor effects, but the mushrooms' anti-inflammatory and antiallergic properties have also been investigated. The antitumor mechanisms were either direct tumor attack, e.g., apoptosis and metastatic suppression, or indirect defense, e.g., inhibited tumor neovascularization and T helper cell (Th) 1 immune response. The anti-inflammatory mechanisms were a reduction in proinflammatory cytokines, oxidative stress and changed gut microbiota, and the antiallergic mechanism was amelioration of a skewed Th1/Th2 balance. Since a predominant Th2 milieu is also found in cancer, which quite often is caused by a local chronic inflammation, the three conditions-tumor, inflammation and allergy-seem to be linked. Further mechanisms for HE were increased nerve and beneficial gut microbiota growth, and oxidative stress regulation. The medicinal mushrooms AbM, HE and GF appear to be safe, and can, in fact, increase longevity in animal models, possibly due to reduced tumorigenesis and oxidation. This article reviews preclinical and clinical findings with these mushrooms and the mechanisms behind them.


Asunto(s)
Agaricus/química , Antialérgicos , Antiinflamatorios , Antineoplásicos , Basidiomycota/química , Productos Biológicos/aislamiento & purificación , Productos Biológicos/farmacología , Grifola/química , Hericium/química , Animales , Productos Biológicos/uso terapéutico , Citocinas/metabolismo , Modelos Animales de Enfermedad , Microbioma Gastrointestinal/efectos de los fármacos , Humanos , Mediadores de Inflamación/metabolismo , Ratones , Neoplasias/irrigación sanguínea , Neoplasias/tratamiento farmacológico , Neovascularización Patológica , Estrés Oxidativo/efectos de los fármacos , Ratas , Linfocitos T Colaboradores-Inductores/inmunología
13.
Int J Med Mushrooms ; 22(1): 79-91, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32464000

RESUMEN

Grifola gargal is a medicinal mushroom with biological effects, such as antiatherogenic activity, and is used as a treatment for various chronic inflammatory diseases. The aim of this study is to investigate the antidiabetic and antiobesity effects of a low-molecular weight hot water extract from G. gargal (GGL) against diabetes type 2. In a human clinical trial, 10 subjects with prediabetes consumed 9.2 g of GGL daily for 4 weeks. The significant beneficial health effects observed were decreases in triglyceride levels. This is the first report of these results in humans. Moreover, in animal experiments, we investigated the influence of administered feed with 2% (w/w) GGL for 42 days by using KK-Ay and ob/ob mice as animal models of obesity and diabetes. Results showed that GGL reduces blood glucose and triglyceride levels and adipose tissue. GGL (2.0 mg/mL) significantly suppressed the expression of the cytokine interleukin-6 in 3T3-L1 cells compared with control cells. Thus, the results indicate that G. gargal may be used as a safe and healthy medicinal food to prevent and improve diabetes- and obesity-related metabolic syndrome.


Asunto(s)
Grifola/química , Hipoglucemiantes/administración & dosificación , Obesidad/prevención & control , Estado Prediabético/tratamiento farmacológico , Triglicéridos/sangre , Células 3T3-L1 , Tejido Adiposo/efectos de los fármacos , Animales , Glucemia/análisis , Diabetes Mellitus Tipo 2 , Femenino , Humanos , Hipoglucemiantes/uso terapéutico , Interleucina-6/metabolismo , Masculino , Ratones , Ratones Endogámicos C57BL , Persona de Mediana Edad , Modelos Animales , Obesidad/tratamiento farmacológico
14.
J Ethnopharmacol ; 260: 112962, 2020 Oct 05.
Artículo en Inglés | MEDLINE | ID: mdl-32422357

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Grifola frondosa (GF), a high value medicinal mushroom, is popularly consumed as traditional medicines and health foods in China and Japan. It is a herbal medicine traditionally used for treating inflammation, cancer and diabetes. AIM OF THE STUDY: This study aimed to examine the anti-diabetic effects of a GF bioactive compound ergosterol peroxide (EPO), and its mechanism(s) of action in palmitate (PA)-induced C2C12 cells. MATERIALS AND METHODS: EPO was isolated and purified from GF fruiting bodies, and used to test for anti-diabetic activity in PA-induced murine C2C12 skeletal muscle cells through measuring glucose uptake, intracellular ROS production, and expressions of MAPKs, IRS-1, PI3K, Akt and GLUT-4 proteins. RESULTS: EPO significantly up-regulated glucose absorption and increased cell growth. At 5 µM, EPO significantly enhanced glucose uptake and decreased ROS formation, as well as up-regulated the expression of IRS-1, p-IRS-1, PI3K, Akt, p-Akt, and GLUT-4 proteins in PA-induced cells, while their p-JNK and p-p38 expression were down-regulated. GLUT-4 siRNA treatment effectively down-regulated the EPO-induced absorption of glucose and inhibited the expression of GLUT-4. CONCLUSION: These results suggest that the anti-diabetic effect of GF was from its bioactive compound EPO through the inhibition of ROS production, up-regulation of glucose absorption, and modulation of PI3K/Akt, MAPKs and GLUT-4 signaling transduction pathways.


Asunto(s)
Ergosterol/análogos & derivados , Glucosa/metabolismo , Grifola , Hipoglucemiantes/farmacología , Músculo Esquelético/efectos de los fármacos , Palmitatos/farmacología , Animales , Línea Celular , Ergosterol/aislamiento & purificación , Ergosterol/farmacología , Cuerpos Fructíferos de los Hongos , Transportador de Glucosa de Tipo 4/genética , Transportador de Glucosa de Tipo 4/metabolismo , Grifola/química , Hipoglucemiantes/aislamiento & purificación , Ratones , Proteínas Quinasas Activadas por Mitógenos/metabolismo , Músculo Esquelético/metabolismo , Fosfatidilinositol 3-Quinasa/metabolismo , Proteínas Proto-Oncogénicas c-akt/metabolismo , Especies Reactivas de Oxígeno/metabolismo , Transducción de Señal
15.
Biomed Res Int ; 2020: 8193971, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32258147

RESUMEN

Maitake (Grifola frondosa) mushroom has received an enormous amount of attention as a dietary supplement due to its high nutritional values. The particle sizes of G. frondosa mushrooms were monitored by a classifying mill. ß-Glucans are the bioactive component of the mushroom, and it was revealed through Fourier transform infrared spectroscopy (FTIR), proton and carbon nuclear magnetic resonance (1H and 13C-NMR), matrix-assisted laser desorption/ionization, and time-of-flight (MALDI-TOF) spectrometry. The biocompatibility of G. frondosa particles, as well as induced osteogenesis of hMSCs, was evaluated through WST-1 assay and alizarin staining (ARS) technique, respectively. Notably, enhanced cell viability was noted in the presence of G. frondosa. Significantly improved calcium deposition has observed from hMSCs with G. frondosa, suggesting to their mineralization potential. The expression of osteogenic related gene markers was examined in the presence of G. frondosa through real-time polymerase chain reaction (qPCR) technique. The upregulation of osteogenic gene markers in the presence of G. frondosa particles was indicating their superior osteogenic potential. Besides, G. frondosa also activated the secretion of various kinds of proteins from the hMSCs indicating their potential for tissue engineering applications. Enhanced secretion of different immunoglobulins was observed in rat serum in the presence of G. frondosa, further demonstrating their therapeutic nature. Therefore, G. frondosa is effective for enhanced osteogenesis and can be utilized as a natural, edible, and osteogenic agent.


Asunto(s)
Antígenos de Diferenciación/metabolismo , Diferenciación Celular/efectos de los fármacos , Grifola/química , Células Madre Mesenquimatosas/metabolismo , Osteogénesis/efectos de los fármacos , Animales , Humanos , Masculino , Células Madre Mesenquimatosas/citología , Ratones , Ratones Endogámicos ICR , Polvos , Ratas
16.
Int J Biol Macromol ; 149: 801-808, 2020 Apr 15.
Artículo en Inglés | MEDLINE | ID: mdl-31982530

RESUMEN

Grifola frondosa is an edible and medicinal mushroom with great nutritional values and bioactivities. In the present study, a soluble homogeneous ß-glucan, GFPS, with high molecular mass of 5.42 × 106 Da was purified from the fruit bodies of Grifola frondosa using 5% cold NaOH. The structure of GFPS was determined with FT-IR, NMR, and monosaccharide composition analysis, and was identified to be a ß-D-(1-3)-linked glucan backbone with a single ß-D-(1-6)-linked glucopyranosyl residue branched at C-6 on every third residue. Our results indicated that GFPS had a triple helical structure and could form complex with polydeoxyadenylic acid (poly[A]). Further studies demonstrated that GFPS could interact with poly[A] moiety of a designed antisense oligonucleotide (ASO) targeting the primary transcript of proinflammatory cytokine TNFα (TNFα-A60). This GFPS-based complex could incorporate TNFα-A60 into the macrophage cells via dectin-1 receptor and attenuate lipopolysaccharide-induced secretion of TNFα. Our results suggested that GFPS could be applied to deliver therapeutic oligonucleotides for the treatment of diseases such as inflammation and cancers.


Asunto(s)
Grifola/química , Lectinas Tipo C/metabolismo , Oligonucleótidos/farmacología , Factor de Necrosis Tumoral alfa/genética , Factor de Necrosis Tumoral alfa/metabolismo , beta-Glucanos/química , Agaricales/química , Animales , Citocinas/metabolismo , Ratones , Conformación Molecular , Poli A , Células RAW 264.7
17.
Glycoconj J ; 37(1): 107-117, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31823245

RESUMEN

Grifola frondosa is a basidiomycete fungus with potential biomedical applications owing to the presence of bioactive polysaccharides. The activities of polysaccharides are influenced by many factors, particularly temperature; however, the optimal temperature and conditions for preparation of polysaccharides from this organism have not yet been determined. Therefore, in this study, cold-water soluble polysaccharides from Grifola frondosa were extracted at 4 °C (GFP-4) and purified. GFP-4-30, GFP-4-60 and GFP-4-90 were obtained from GFP-4 after treatment at 30 °C, 60 °C, or 90 °C, respectively, for 6 h. MTT results showed that GFP-4 had the highest inhibitory effects on the proliferation of SPC-A-1 cells in vitro. High-performance gel permeation chromatography results demonstrated that the molecular weight of GFP-4 was 1.05 × 106 Da and that GFP-4-30, GFP-4-60, and GFP-4-90 showed different levels of degradation and generated small molecule sugars. Fourier transform infrared spectroscopy, gas chromatography, and nuclear magnetic resonance results indicated that GFPs mainly consisted of α-D-Galp, α-D-Manp and α-D-Glcp. Periodate oxidation, Smith degradation, and methylation results showed that the backbones of the molecules consisted of 1,3-linked-Galp. After heat treatment, percentages of (1 → 3,4) α-D-Galp in heat-treated polysaccharides were obviously decreased, indicating their lower branching degree, and resulting in weaker antitumor effects. Overall, our findings demonstrated changes in the structure-activity relationships of GFP-4 after heat treatment and provided a theoretical basis for the application of GFP-4 in the food and drug industries.


Asunto(s)
Antineoplásicos/química , Polisacáridos Fúngicos/química , Grifola/química , Antineoplásicos/farmacología , Conformación de Carbohidratos , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Polisacáridos Fúngicos/farmacología , Calor , Humanos , Oxidación-Reducción , Relación Estructura-Actividad
18.
Int J Med Mushrooms ; 21(8): 735-753, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31679282

RESUMEN

Basidiomycetes of various species and their wide range of pharmaceuticaly interesting products in the past decades represents one of the most attractive groups of natural products in Asia and North America. Production of mushroom fruit bodies using farming technology is hardly covering the market. Development of comprehensive submerged technologies in stirred tank and air lift bioreactors are the most promising technologies for fast and large-amount cultivation of medicinal mushroom biomass and its pharmaceutically active products. Research in physiology, basic and applied studies in mushroom metabolism, process engineering aspects, and clinical studies in the past two decades represent a large cotribution to the development of this potential, which initiates the development of new drugs and some very attractive over-the-counter human and veterinary remedies. The current article is an overview of the most relevant engineering achievements in submerged cultivation of some medicinal mushrooms-Grifola frondosa, Trametes versicolor, Hericium erinaceus, and Cordyceps militaris-and some other species biomass production in bioreactors.


Asunto(s)
Basidiomycota/crecimiento & desarrollo , Productos Biológicos/metabolismo , Reactores Biológicos , Agaricales , Agricultura , Asia , Basidiomycota/metabolismo , Biomasa , Cordyceps/crecimiento & desarrollo , Cordyceps/metabolismo , Ingeniería , Grifola/crecimiento & desarrollo , Grifola/metabolismo , Trametes/crecimiento & desarrollo , Trametes/metabolismo
19.
Int J Med Mushrooms ; 21(8): 825-839, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31679289

RESUMEN

Grifola frondosa (hen of the woods or maitake) is a famous culinary-medicinal mushroom, and its exopolysaccharides (EPSs) have biological activities with or without supplementation with exogenous additives. In this study, a Rhizoma gastrodiae extract was added to a G. frondosa fermentation system. P-hydroxylbenzaldehyde (HBA), the main product of R. gastrodiae, had the highest utilization rate in the fermentation process (42%). In addition, the EPSs of G. frondosa after addition of R. gastrodiae extract (REPS), of HBA (HEPS), or of a standard solution according to the main component ratio of R. gastrodiae extract (CEPS) were obtained. We then determined the antioxidant and immunomodulatory activities of EPS, REPS, HEPS, and CEPS. Overall, REPS showed the highest antioxidant activities compared with EPS and HEPS (P < 0.05) but similar to that of CEPS (P > 0.05). The half-inhibitory concentration (ED50) values of REPS (< 4 mg/mL) were lower than those of EPS, HEPS, and CEPS. Moreover, REPS was better able to stimulate phagocytosis and nitric oxide production of RAW 264.7 macrophages than were the others, without a significant difference from CEPS (P > 0.05). An interesting and important finding is that a R. gastrodiae extract can increase antioxidant and immunomodulatory activities of EPS preparations from G. frondosa, and the standard solution of the main components of the R. gastrodiae extract may be better for simulating fermentation performed by G. frondosa and biological activities of its major products.


Asunto(s)
Antioxidantes/farmacología , Polisacáridos Fúngicos/farmacología , Gastrodia/química , Grifola/química , Factores Inmunológicos/farmacología , Extractos Vegetales/farmacología , Agaricales , Animales , Antioxidantes/aislamiento & purificación , Citocinas/metabolismo , Fermentación , Polisacáridos Fúngicos/aislamiento & purificación , Factores Inmunológicos/aislamiento & purificación , Macrófagos/efectos de los fármacos , Ratones , Fagocitosis/efectos de los fármacos , Extractos Vegetales/aislamiento & purificación , Células RAW 264.7
20.
Biosci Biotechnol Biochem ; 83(12): 2280-2287, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31412751

RESUMEN

The increasing number of patients suffering from allergic diseases is a global health problem. Grifola frondosa is an edible mushroom consumed as a health food in Asia, and has recently been reported to have anti-allergic effects. We previously reported that G. frondosa extract (GFE) and its active components, ergosterol and its derivatives, inhibited the antigen-induced activation of RBL-2H3 cells. Here, we demonstrated that GFE and ergosterol also had an inhibitory effect on the degranulation of bone marrow-derived mast cells (BMMCs) and alleviated anaphylactic cutaneous responses in mice. Using an air pouch-type allergic inflammation mouse model, we confirmed that oral administration of GFE and ergosterol suppressed the degranulation of mast cells in vivo. Our findings suggest that G. frondosa, including ergosterol as its active component, reduces type I allergic reactions by suppressing mast cell degranulation in mice, and might be a novel functional food that prevents allergic diseases.


Asunto(s)
Degranulación de la Célula/efectos de los fármacos , Ergosterol/farmacología , Grifola/química , Hipersensibilidad/prevención & control , Mastocitos/efectos de los fármacos , Extractos Vegetales/farmacología , Animales , Permeabilidad Capilar/efectos de los fármacos , Línea Celular , Modelos Animales de Enfermedad , Alimentos Funcionales , Liberación de Histamina/efectos de los fármacos , Hipersensibilidad/patología , Masculino , Ratones , Ratones Endogámicos ICR , beta-N-Acetilhexosaminidasas/antagonistas & inhibidores
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