51
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Zheng S, Deng S, Huang Y, Huang M, Zhao P, Ma X, Wen Y, Wang Q, Yang X. Anti-diabetic activity of a polyphenol-rich extract from Phellinus igniarius in KK-Ay mice with spontaneous type 2 diabetes mellitus. Food Funct 2018; 9:614-623. [PMID: 29271444 DOI: 10.1039/c7fo01460k] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The present study investigated the anti-diabetic activity and potential mechanisms of the polyphenol rich extract from Phellinus igniarius (PI-PRE) in vitro and in vivo. Four main phenolic compounds of PI-PRE were purified and identified as 7,8-dihydroxycoumarin, 3,4-dihydroxybenzalacetone, 7,3'-dihydroxy-5'-methoxyisoflavone and inoscavin C by the off-line semipreparative liquid chromatography-nuclear magnetic resonance protocol. In vitro, PI-PRE stimulated GLUT4 translocation by 2.34-fold and increased glucose uptake by 1.73-fold in L6 cells. However, the selective AMP-activated protein kinase (AMPK) inhibitor, compound C, completely reversed the PI-PRE-induced GLUT4 translocation. In vivo, KK-Ay mice treated with PI-PRE for four weeks had lower fasting blood glucose levels, as well as other blood-lipid indexes, compared with the vehicle control group. Mechanistic studies showed that the expressions of p-AMPKα and GLUT4 were significantly increased by treatment with PI-PRE in L6 cells. In KK-Ay mice, the expression of p-AMPKα was enhanced in the liver and skeletal muscle, and the expression of GLUT4 was increased in skeletal muscle. These findings suggest that PI-PRE possesses potential anti-diabetic effects including improving glucose tolerance, reducing hyperglycemia, and normalizing insulin levels. These effects are partly due to the activation of GLUT4 translocation via the modulation of the AMPK pathway.
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Affiliation(s)
- Sijian Zheng
- School of Pharmaceutical Sciences, South-Central University for Nationalities, 182 Min-Zu Road, Wuhan 430074, China.
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52
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Saiki P, Kawano Y, Van Griensven LJLD, Miyazaki K. The anti-inflammatory effect of Agaricus brasiliensis is partly due to its linoleic acid content. Food Funct 2018; 8:4150-4158. [PMID: 29022634 DOI: 10.1039/c7fo01172e] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For hundreds of years mushrooms have been used as functional food for health. The basidiomycete Agaricus brasiliensis (A. brasiliensis) is famous for the medicinal properties of its beta glucans and of its antioxidants. Most researchers have studied polysaccharides from A. brasiliensis for their anti-inflammatory activity. However, active compounds from this mushroom have not yet been studied for the inactivation of NO inhibitory activity. The present study aimed to find the active compounds from A. brasiliensis for their NO inhibitory activity related inflammatory activity. This study found that linoleic acid isolated from A. brasiliensis inhibited NO production and suppressed the expression of pro-inflammatory cytokines including TNF-α, IL-6, IL-1β, and NOS2 in RAW 264.7 cells. Linoleic acid also suppressed the expression of NF-κB subunit p50 and restored PPARα. This leads to the conclusion that linoleic acid from A. brasiliensis could reduce NO production and inflammatory activity in RAW 264.7 cells by the inhibition of p50 and via the activation of PPARα. This study suggests that linoleic acid present in A. brasiliensis could play a role in the prevention of inflammatory diseases for which this edible mushroom is already known.
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Affiliation(s)
- Papawee Saiki
- Biomedical Research Institute, National institute of Advance Industrial Science and Technology, Tsukuba, Ibaraki, Japan.
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53
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Sulfated modification of polysaccharides: Synthesis, characterization and bioactivities. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.02.010] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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54
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Wu Z, Xia Z, Wu B, Wei F, Lv X, Xie Y, Xu S, Xu J, Chen H, Huang F. Lipid profiling in serum from apolipoprotein E-knock out mice fed with different diets and its application to the study of the regulatory effect on lipid metabolism. Food Funct 2018; 9:5103-5114. [DOI: 10.1039/c8fo01076e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A lipidome profiling platform was established that could evaluate the cardiovascular health products from lipid changes, their metabolism regulation and intervention mechanism in chronic disease, such as atherosclerosis.
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55
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Hou L, Meng M, Chen Y, Wang C. A water-soluble polysaccharide from Grifola frondosa induced macrophages activation via TLR4-MyD88-IKKβ-NF-κB p65 pathways. Oncotarget 2017; 8:86604-86614. [PMID: 29156820 PMCID: PMC5689710 DOI: 10.18632/oncotarget.21252] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 08/06/2017] [Indexed: 12/02/2022] Open
Abstract
Here, the immunomodulatory effects of water-soluble polysaccharide from Grifola frondosa on RAW264.7 macrophages and its molecular mechanisms were investigated. G. frondosa polysaccharide could obviously enhance immunostimulatory activity such as the release of nitric oxide and cytokine production. Western blotting results showed that G. frondosa polysaccharide elevated the TLR4, which might act as an upstream regulator of MyD88 induced G. frondosa polysaccharide. MyD88 promoted IKKβ in endochylema and translocate NF-κB p65 subunit into the nucleus which increased the NO production and cytokine/chemokines level. The results suggested that G. frondosa polysaccharide activated macrophages through TLR4-MyD88-IKKβ-NF-κBp65 signaling pathways.
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Affiliation(s)
- Lihua Hou
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, People's Republic of China
| | - Meng Meng
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, People's Republic of China
| | - Yuanyuan Chen
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, People's Republic of China
| | - Chunling Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, People's Republic of China
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56
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Su HH, Chu YC, Liao JM, Wang YH, Jan MS, Lin CW, Wu CY, Tseng CY, Yen JC, Huang SS. Phellinus linteus Mycelium Alleviates Myocardial Ischemia-Reperfusion Injury through Autophagic Regulation. Front Pharmacol 2017; 8:175. [PMID: 28420993 PMCID: PMC5378821 DOI: 10.3389/fphar.2017.00175] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 03/15/2017] [Indexed: 11/13/2022] Open
Abstract
The incidence of myocardial ischemia-reperfusion (IR) injury is rapidly increasing around the world and this disease is a major contributor to global morbidity and mortality. It is known that regulation of programmed cell death including apoptosis and autophagy reduces the impact of myocardial IR injury. In this study, the cardioprotective effects and underlying mechanisms of Phellinus linteus (Berk. and Curt.) Teng, Hymenochaetaceae (PL), a type of medicinal mushroom, were examined in rats subjected to myocardial IR injury. The left main coronary artery of rats was ligated for 1 h and reperfused for 3 h. The arrhythmia levels were monitored during the entire process and the infarct size was evaluated after myocardial IR injury. Furthermore, the expression levels of proteins in apoptotic and autophagic pathways were observed. Pretreatment with PL mycelium (PLM) significantly reduced ventricular arrhythmia and mortality due to myocardial IR injury. PLM also significantly decreased myocardial infarct size and plasma lactate dehydrogenase level after myocardial IR injury. Moreover, PLM administration resulted in decreased caspase 3 and caspase 9 activation and increased Bcl-2/Bax ratio. Phosphorylation level of AMPK was elevated while mTOR level was reduced. Becline-1 and p62 levels decreased. These findings suggest that PLM is effective in protecting the myocardium against IR injury. The mechanism involves mediation through suppressed pro-apoptotic signaling and regulation of autophagic signaling, including stimulation of AMPK-dependent pathway and inhibition of beclin-1-dependent pathway, resulting in enhancement of protective autophagy and inhibition of excessive autophagy.
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Affiliation(s)
- Hsing-Hui Su
- Institute of Pharmacology, National Yang-Ming UniversityTaipei, Taiwan
| | - Ya-Chun Chu
- Department of Anesthesiology, Taipei Veterans General Hospital, National Yang-Ming UniversityTaipei, Taiwan
| | - Jiuan-Miaw Liao
- Department of Physiology, Chung Shan Medical University and Chung Shan Medical University HospitalTaichung, Taiwan
| | - Yi-Hsin Wang
- Institute of Medicine, Chung Shan Medical UniversityTaichung, Taiwan
| | - Ming-Shiou Jan
- Institute of Biochemistry, Microbiology and Immunology, Medical College, Chung Shan Medical UniversityTaichung, Taiwan.,Division of Allergy, Immunology, and Rheumatology, Chung Shan Medical University HospitalTaichung, Taiwan.,Immunology Research Center, Chung Shan Medical UniversityTaichung, Taiwan
| | - Chia-Wei Lin
- Institute of Biochemistry, Microbiology and Immunology, Medical College, Chung Shan Medical UniversityTaichung, Taiwan
| | - Chiu-Yeh Wu
- Department of Culinary Arts, Chung Chou University of Science and TechnologyChanghua, Taiwan
| | - Chin-Yin Tseng
- Department of Health Food, Chung Chou University of Science and TechnologyChanghua, Taiwan
| | - Jiin-Cherng Yen
- Institute of Pharmacology, National Yang-Ming UniversityTaipei, Taiwan
| | - Shiang-Suo Huang
- Institute of Medicine, Chung Shan Medical UniversityTaichung, Taiwan.,Department of Pharmacy, Chung Shan Medical University HospitalTaichung, Taiwan.,Department of Pharmacology, Chung Shan Medical UniversityTaichung, Taiwan
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57
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Castro-Alves VC, Gomes D, Menolli N, Sforça ML, Nascimento JROD. Characterization and immunomodulatory effects of glucans from Pleurotus albidus, a promising species of mushroom for farming and biomass production. Int J Biol Macromol 2017; 95:215-223. [DOI: 10.1016/j.ijbiomac.2016.11.059] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 10/31/2016] [Accepted: 11/16/2016] [Indexed: 12/26/2022]
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58
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Charaterization and immunomodulatory activities of polysaccharide isolated from Pleurotus eryngii. Int J Biol Macromol 2016; 92:30-36. [DOI: 10.1016/j.ijbiomac.2016.07.016] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 07/03/2016] [Accepted: 07/04/2016] [Indexed: 11/18/2022]
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59
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Lin Z, Liao W, Ren J. Physicochemical Characterization of a Polysaccharide Fraction from Platycladus orientalis (L.) Franco and Its Macrophage Immunomodulatory and Anti-Hepatitis B Virus Activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:5813-5823. [PMID: 27345527 DOI: 10.1021/acs.jafc.6b01387] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A polysaccharide fraction, here called POP1, was purified from the leaves of Platycladus orientalis (L.) Franco by water extraction and alcohol precipitation. Physicochemical characterization indicated that POP1 had a relative molecular weight of 8.10 × 10(3) Da and consisted of rhamnose (5.74%), arabinose (12.58%), mannose (10.97%), glucose (64.96%), and galactose (6.55%). The main linkage types of POP1 consisted of (1→5)-linked α-l-Ara, (1→3)-linked α-l-Man, (1→6)-linked β-l-Rha, (1→4)-linked α-d-Glc, (1→6)-linked α-d-Glc, (1→6)-linked β-d-Gal, (1→3,6)-linked β-d-Gal, and termination with α-l-Man and α-d-Glc residues based on periodate oxidation, Smith degradation, methylation, and NMR analysis. POP1 exhibited excellent immunostimulating activity by enhancing macrophage NO, TNF-α, IL-6, and IL-12 secretion and activating related mRNA expression. Besides, POP1 showed significant anti-HBV activity through inhibiting the expression of HBsAg (IC50 = 1.33 ± 0.12 mg/mL) and HBeAg (IC50 = 1.67 ± 0.13 mg/mL) and interfering with the HBV DNA replication (IC50 = 0.80 ± 0.03 mg/mL). The present study suggested that POP1 could be used as immunoregulatory agent in functional foods for the prevention of HBV infection.
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Affiliation(s)
- Zehua Lin
- School of Food Science and Engineering, South China University of Technology , Guangzhou, 510641, China
| | - Wenzhen Liao
- School of Food Science and Engineering, South China University of Technology , Guangzhou, 510641, China
- Institute of Food Safety and Nutrition, Jinan University , Guangzhou, 510632, China
| | - Jiaoyan Ren
- School of Food Science and Engineering, South China University of Technology , Guangzhou, 510641, China
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60
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Liu MM, Zeng P, Li XT, Shi LG. Antitumor and immunomodulation activities of polysaccharide from Phellinus baumii. Int J Biol Macromol 2016; 91:1199-205. [PMID: 27370747 DOI: 10.1016/j.ijbiomac.2016.06.086] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/24/2016] [Accepted: 06/27/2016] [Indexed: 11/26/2022]
Abstract
A homogeneous polysaccharide (PPB) was purified from fruiting bodies of Phellinus baumii. And in vitro antitumor and immunomodulation activities were investigated on HeLa, SGC-7901 and RAW264.7 cell lines. PPB inhibited the proliferation of HeLa and SGC-7901 cells significantly, and flow cytometric studies revealed that PPB could mediate the cell cycle in the G0/G1 and S phases. Furthermore, PPB could promote the growth and phagocytosis of RAW264.7 cells, activate the secretion of cytokines such as TNF-α and IL-6, which indicated that PPB had low toxicity. The results make PPB as a candidate adjuvant in cancer therapy.
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Affiliation(s)
- Ming-Ming Liu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Peng Zeng
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiao-Tong Li
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lian-Gen Shi
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, China.
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61
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Isolation, characterization, and radiation protection of Sipunculus nudus L. polysaccharide. Int J Biol Macromol 2016; 83:288-96. [DOI: 10.1016/j.ijbiomac.2015.11.071] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 11/13/2015] [Accepted: 11/25/2015] [Indexed: 01/31/2023]
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62
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Li L, Li H, Qian J, He Y, Zheng J, Lu Z, Xu Z, Shi J. Structural and Immunological Activity Characterization of a Polysaccharide Isolated from Meretrix meretrix Linnaeus. Mar Drugs 2015; 14:6. [PMID: 26729136 PMCID: PMC4728503 DOI: 10.3390/md14010006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 12/13/2015] [Accepted: 12/21/2015] [Indexed: 12/30/2022] Open
Abstract
Polysaccharides from marine clams perform various biological activities, whereas information on structure is scarce. Here, a water-soluble polysaccharide MMPX-B2 was isolated from Meretrix meretrix Linnaeus. The proposed structure was deduced through characterization and its immunological activity was investigated. MMPX-B2 consisted of d-glucose and d-galctose residues at a molar ratio of 3.51:1.00. The average molecular weight of MMPX-B2 was 510 kDa. This polysaccharide possessed a main chain of (1→4)-linked-α-d-glucopyranosyl residues, partially substituted at the C-6 position by a few terminal β-d-galactose residues or branched chains consisting of (1→3)-linked β-d-galactose residues. Preliminary immunological tests in vitro showed that MMPX-B2 could stimulate the murine macrophages to release various cytokines, and the structure-activity relationship was then established. The present study demonstrated the potential immunological activity of MMPX-B2, and provided references for studying the active ingredients in M. meretrix.
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Affiliation(s)
- Li Li
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Heng Li
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Jianying Qian
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Yongfeng He
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Jialin Zheng
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Zhenming Lu
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Zhenghong Xu
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
| | - Jinsong Shi
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, China.
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