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Cao Y, Fang X, Sun M, Zhang Y, Shan M, Lan X, Zhu D, Luo H. Preventive and therapeutic effects of natural products and herbal extracts on nonalcoholic fatty liver disease/nonalcoholic steatohepatitis. Phytother Res 2023; 37:3867-3897. [PMID: 37449926 DOI: 10.1002/ptr.7932] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/21/2023] [Accepted: 06/21/2023] [Indexed: 07/18/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a common condition that is prevalent in patients who consume little or no alcohol, and is characterized by excessive fat accumulation in the liver. The disease is becoming increasingly common with the rapid economic development of countries. Long-term accumulation of excess fat can lead to NAFLD, which represents a global health problem with no effective therapeutic approach. NAFLD is a complex, multifaceted pathological process that has been the subject of extensive research over the past few decades. Herbal medicines have gained attention as potential therapeutic agents to prevent and treat NAFLD due to their high efficacy and low risk of side effects. Our overview is based on a PubMed and Web of Science database search as of Dec 22 with the keywords: NAFLD/NASH Natural products and NAFLD/NASH Herbal extract. In this review, we evaluate the use of herbal medicines in the treatment of NAFLD. These natural resources have the potential to inform innovative drug research and the development of treatments for NAFLD in the future.
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Affiliation(s)
- Yiming Cao
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun, China
| | - Xiaoxue Fang
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun, China
| | - Mingyang Sun
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun, China
| | - Yegang Zhang
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun, China
| | - Mengyao Shan
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun, China
| | - Xintian Lan
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun, China
| | - Difu Zhu
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun, China
| | - Haoming Luo
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
- Key Laboratory of Effective Components of Traditional Chinese Medicine, Changchun, China
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Chi Z, Teng Y, Liu Y, Gao L, Yang J, Zhang Z. Association between klotho and non-alcoholic fatty liver disease and liver fibrosis based on the NHANES 2007-2016. Ann Hepatol 2023; 28:101125. [PMID: 37286168 DOI: 10.1016/j.aohep.2023.101125] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/24/2023] [Accepted: 05/29/2023] [Indexed: 06/09/2023]
Abstract
INTRODUCTION AND OBJECTIVES This study aims to explore the association between Klotho and Non-Alcoholic Fatty Liver Disease (NAFLD), a condition affecting millions worldwide. Klotho may have a protective effect against NAFLD mechanisms like inflammation, oxidative stress, and fibrosis. The study will use FLI and FIB-4 score to diagnose NAFLD in a large population for investigating the link between Klotho and NAFLD. MATERIALS AND METHODS The study aimed to explore the association between Klotho and NAFLD by measuring the α-Klotho protein levels in the participants' blood using ELISA. Patients with underlying chronic liver diseases were excluded. The severity of NAFLD was evaluated using FLI and FIB-4, and logistic regression models were used to analyze the data obtained from NHANES. Subgroup analyses were conducted to study Klotho's effect on hepatic steatosis and fibrosis in diverse subpopulations. RESULTS The study found that low levels of α-Klotho were associated with NAFLD, with ORs ranging from 0.72 to 0.83. However, high levels of α-Klotho were associated with NAFLD-related fibrosis. The Q4 group showed significant results in individuals aged 51 years or younger and in females. Non-Hispanic White ethnicity, education level of high school or above, non-smoking, non-hypertension, and non-diabetic groups showed negative correlations. CONCLUSIONS Our study suggests a potential correlation between α-Klotho levels in the blood and NAFLD in adult patients, especially among younger individuals, females and Non-Hispanic Whites. Elevated α-Klotho levels may have therapeutic benefits in treating NAFLD. Further research is required to validate these findings, but they provide new insights for managing this condition.
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Affiliation(s)
- Zhenfei Chi
- Liaoning University of Traditional Chinese Medicine, PR China
| | - Yun Teng
- Liaoning University of Traditional Chinese Medicine, PR China
| | - Yuting Liu
- Liaoning University of Traditional Chinese Medicine, PR China
| | - Lu Gao
- Liaoning University of Traditional Chinese Medicine, PR China
| | - Junhan Yang
- Liaoning University of Traditional Chinese Medicine, PR China
| | - Zhe Zhang
- Liaoning University of Traditional Chinese Medicine, PR China.
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Kim SH, Yun C, Kwon D, Lee YH, Kwak JH, Jung YS. Effect of Isoquercitrin on Free Fatty Acid-Induced Lipid Accumulation in HepG2 Cells. Molecules 2023; 28:molecules28031476. [PMID: 36771140 PMCID: PMC9919102 DOI: 10.3390/molecules28031476] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/27/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Liver metabolic disorders and oxidative stress are crucial factors in the development of nonalcoholic fatty liver disease (NAFLD); however, treatment strategies to combat NAFLD remain poorly established, presenting an important challenge that needs to be addressed. Herein, we aimed to examine the effect of isoquercitrin on lipid accumulation induced by exogenous free fatty acids (FFA) using HepG2 cells and elucidate the underlying molecular mechanism. The cells were exposed to 0.5 mM FFA to induce intracellular lipid accumulation, followed by co-treatment with isoquercitrin to confirm the potential inhibitory effect on FFA-induced lipid production. HepG2 cells exposed to FFA alone exhibited intracellular lipid accumulation, compromised endoplasmic reticulum (ER) stress, and enhanced expression of proteins and genes involved in lipid synthesis; however, co-treatment with isoquercitrin decreased the expression of these molecules in a dose-dependent manner. Furthermore, isoquercitrin could activate AMP-activated protein kinase (AMPK), a key regulatory protein of hepatic fatty acid oxidation, suppressing new lipid production by phosphorylating acetyl-CoA carboxylase (ACC) and inhibiting sterol regulatory element-binding transcription factor 1 (SREBP-1)/fatty acid synthase (FAS) signals. Overall, these findings suggest that isoquercitrin can be employed as a therapeutic agent to improve NAFLD via the regulation of lipid metabolism by targeting the AMPK/ACC and SREBP1/FAS pathways.
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Affiliation(s)
- Sou Hyun Kim
- Department of Pharmacy, College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Chawon Yun
- Department of Pharmacy, College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
| | - Doyoung Kwon
- College of Pharmacy, Jeju Research Institute of Pharmaceutical Sciences, Jeju National University, Jeju 63243, Republic of Korea
| | - Yun-Hee Lee
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jae-Hwan Kwak
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Republic of Korea
| | - Young-Suk Jung
- Department of Pharmacy, College of Pharmacy, Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea
- Correspondence: ; Tel.: +82-51-5102816
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Chen X, Chen L, Qin Y, Mao Z, Huang Z, Jia G, Zhao H, Liu G. Dietary L-theanine supplementation improves lipid metabolism and antioxidant capacity in weaning piglets. Anim Biotechnol 2022; 33:1407-1415. [PMID: 35852117 DOI: 10.1080/10495398.2022.2099883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The aim of this study was to explore the effects of dietary L-theanine (LT) supplementation on lipid metabolism and antioxidant capacity in weaned piglets. Twenty-one castrated DLY weaning piglets were randomly divided into three groups: a basal diet, a basal diet supplemented with 0.05% and 0.1% LT, respectively. Our data showed that dietary LT supplementation decreased T-CHO, TG, LDL-C and apoB levels and increased apoA and HDL-C levels in serum, but decreased the hepatic TG and T-CHO contents. Dietary LT supplementation increased the antioxidant capacity in serum and liver, and significantly increased the Nrf2 mRNA level and the nucleus Nrf2 protein level, but decreased the mRNA level of keap1 in the liver. In addition, dietary LT supplementation significantly increased HSL enzyme activity and the levels of CPT1 and TBA, while decreasing the enzyme activities of LPL and FAS in the liver. Furthermore, the mRNA levels HMG-CoAR, CPT-1a and PPARα and the protein levels of phosphorylated-AMPK and PGC-1α were increased by LT. Together, our data provide the first evidence that dietary supplementation of LT could improve lipid metabolism and antioxidant capacity in the liver of weaned piglets, and the effect might be mediated by activation of AMPK and Nrf2 signaling, respectively.
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Affiliation(s)
- Xiaoling Chen
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Lili Chen
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Yaning Qin
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Zhengyu Mao
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Zhiqing Huang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Gang Jia
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Hua Zhao
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
| | - Guangmang Liu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, China
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Oligochaeta ramosa (Roxb.) Extract Regulates Lipid Metabolism and Exerts Hepatoprotective Effects in Cadmium-Induced Hepatic Injury in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:2756769. [PMID: 36387365 PMCID: PMC9643055 DOI: 10.1155/2022/2756769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/18/2022] [Indexed: 01/24/2023]
Abstract
Environmental pollutants present a potential source of toxicity when exposed to humans. The study was aimed at investigating the potential of Oligochaeta ramosa (Roxb.) as a hepatoprotective agent in cadmium-induced hepatotoxicity causing lipid profile disturbance. The aqueous methanolic (30 : 70 v/v) extract of O. ramosa Roxb. (AME.Or) was subjected to preliminary phytochemical analysis, whereas the antioxidant activity of its constituents was investigated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. The hepatoprotective and antihyperlipidemic effects of AME.Or was investigated by dividing animals into five groups (A-E). Animals were either treated with normal saline or CdCl2 (6.5 mg/kg, intraperitoneally) followed by treatment with silymarin (100 mg/kg), or AME.Or (200 mg/kg) and AME.Or (400 mg/kg) for consecutive three weeks. Blood samples were collected, and the serum lipid profile was assessed on the 11th and 21st day of treatment. Histopathological analysis was performed after euthanization. In vitro analysis of AME.Or revealed 64% inhibition as free radicals scavenging potential during DPPH, total phenolic content (TPC) (79.92 mgGAE/g), and total flavonoids content (TFC) (38.75 mgRE/g). The group intoxicated with CdCl2 showed significantly high (p ≤ 0.05) levels of the liver function indicators and lipid profile than in the control group. The higher dose of AME.Or (400 mg/kg) significantly decreased the aspartate aminotransferase (AST), alanine transferase (ALT), alkaline phosphatase (ALP), total bilirubin (p ≤ 0.001), decreased total cholesterol and triglycerides (p ≤ 0.01) while significantly increased high density lipoprotein (HDL; p ≤ 0.01) as compared to the intoxicated group. The histopathological analysis of the liver revealed signs of necrosis in the intoxicated group, while AME.Or treated groups showed marked improvement. The findings accentuate the therapeutic importance of O. ramosa (Roxb.) as a hepatoprotective remedy.
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Octacosanol Modifies Obesity, Expression Profile and Inflammation Response of Hepatic Tissues in High-Fat Diet Mice. Foods 2022; 11:foods11111606. [PMID: 35681357 PMCID: PMC9180418 DOI: 10.3390/foods11111606] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 02/01/2023] Open
Abstract
The incidence of obesity has increased significantly on account of the alterations of living habits, especially changes in eating habits. In this study, we investigated the effect of octacosanol on lipid lowering and its molecular mechanism. High-fat diet (HFD)-induced obesity mouse model was used in the study. Thirty C57BL/6J mice were divided into control, HFD, and HFD+Oct groups randomly, and every group included ten mice. The mice of HFD+Oct group were intragastrically administrated 100 mg/kg/day of octacosanol. After 10 weeks for treatment, our results indicated that octacosanol supplementation decreased the body, liver, and adipose tissues weight of HFD mice; levels of TC, TG, and LDL-c were reduced in the plasma of HFD mice; and level of HDL-c were increased. H&E staining indicated that octacosanol supplementation reduces the size of fat droplets of hepatic tissues and adipose cells comparing with the HFD group. Gene chip analysis found that octacosanol regulated 72 genes involved in lipid metabolism in the tissues of liver comparing to the HFD group. IPA pathway network analysis indicated that PPAR and AMPK may play a pivotal role in the lipid-lowering function of octacosanol. Real-time quantitative PCR and Western blot showed that the octacosanol supplementation caused change of expression levels of AMPK, PPARs, FASN, ACC, SREBP-1c, and SIRT1, which were closely related to lipid metabolism. Taken together, our results suggest that octacosanol supplementation exerts a lipid-decreasing effect in the HFD-fed mice through modulating the lipid metabolism-related signal pathway.
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Yu M, Xie D, Hu CY, Cui Y. LncRNA small nucleolar RNA host gene 16 reduces sepsis-induced myocardial damage by regulating miR-421/suppressor of cytokine signaling 5 axis. Kaohsiung J Med Sci 2022; 38:517-529. [PMID: 35199943 DOI: 10.1002/kjm2.12520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 01/20/2022] [Accepted: 01/28/2022] [Indexed: 11/06/2022] Open
Abstract
Currently, sepsis-induced cardiomyopathy (SIC) remains as one of the most critical clinical syndromes in terminally ill patients. Noncoding RNAs (including microRNAs and long noncoding RNAs) are implicated in both the onset and development of SIC. We herein investigated the functional role and molecular target of long noncoding RNA small nucleolar RNA host gene 16 (SNHG16) in an in vitro SIC model of H9c2 myocardial cells. We used lipopolysaccharide (LPS) as endotoxin to treat H9c2 cells to mimic SIC damages. Cell Counting Kit 8 and apoptosis assay were performed to assess cell proliferation and cell death. Quantitative real-time-PCR and Western blot were employed to examine gene expression level at mRNA and protein level. Dual luciferase assay is used to validate the functional interactions between SNHG16/mi-R421 and miR-421/suppressor of cytokine signaling 5 (SOCS5). Inflammatory cytokines were measured by ELISA. Superoxide dismutase and malondialdehyde measurement was performed to assess oxidative stress, which was further confirmed by 2',7'-dichlorofluorescin diacetate staining. Our data demonstrated that in the LPS-induced sepsis model of myocardial cells, SNHG16 overexpression downregulated the expression level of miR-421, which sustained the expression of SOCS5 to alleviate the adverse effects of LPS, such as apoptosis, pro-inflammatory cytokines, and oxidative stress. Our data suggest that SNHG16 functions as a ceRNA to maintain SOCS5 level by targeting miR-421, thereby attenuating LPS-induced myocardial cell damages. Targeting miR-421 or modulating lncRNA SNHG16 level may be leveraged as a beneficial strategy against sepsis-induced cellular damage in cardiomyocytes.
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Affiliation(s)
- Min Yu
- Department of Cardiology, Wuhan Red Cross Hospital, Wuhan, Hubei, China
| | - Dan Xie
- Department of Cardiology, Wuhan Red Cross Hospital, Wuhan, Hubei, China
| | - Cai-Ying Hu
- Department of Cardiology, Wuhan Red Cross Hospital, Wuhan, Hubei, China
| | - Yue Cui
- Department of Cardiology, Wuhan Red Cross Hospital, Wuhan, Hubei, China
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Marana MH, Poulsen R, Thormar EA, Clausen CG, Thit A, Mathiessen H, Jaafar R, Korbut R, Hansen AMB, Hansen M, Limborg MT, Syberg K, von Gersdorff Jørgensen L. Plastic nanoparticles cause mild inflammation, disrupt metabolic pathways, change the gut microbiota and affect reproduction in zebrafish: A full generation multi-omics study. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127705. [PMID: 34802818 DOI: 10.1016/j.jhazmat.2021.127705] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/29/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Plastic pollution has become a major concern on a global scale. The plastic is broken down into minuscule particles, which have an impact on the biosystems, however long-term impacts through an entire generation is largely unknown. Here, we present the first whole generation study exposing fish to a 500 nm polystyrene plastic particle at environmentally relevant concentrations. Short- and long-term adverse effects were investigated in the zebrafish model organism using a holistic multi-omics approach. The particles accumulated in the yolk sac of young larvae and short-term biological impacts included immune-relevant gene regulation related to inflammation and tolerance as well as disruption of metabolic processes, such as the fatty acid and lipid pathways. The long-term effects comprised gene regulations pointing towards skin and/or gill inflammation, dysbiosis of the gut microbiota, a tendency towards decreased condition factor in adult males as well as a lowered reproductive capability. From this study, it can be concluded that exposures to plastic nanoparticles have an impact on population as well as ecosystem level in fish and likely also in other vertebrates.
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Affiliation(s)
- Moonika Haahr Marana
- Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C., Denmark
| | - Rikke Poulsen
- Environmental Metabolomics Lab, Department of Environmental Science, Aarhus University, 4000 Roskilde, Denmark
| | - Eiríkur Andri Thormar
- Center for Evolutionary Hologenomics, GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, 1353 Copenhagen, Denmark
| | - Cecilie Grønlund Clausen
- Center for Evolutionary Hologenomics, GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, 1353 Copenhagen, Denmark
| | - Amalie Thit
- Department of Science and Environment, Roskilde University, 4000 Roskilde, Denmark
| | - Heidi Mathiessen
- Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C., Denmark
| | - Rzgar Jaafar
- Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C., Denmark
| | - Rozalia Korbut
- Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C., Denmark
| | - Anna Magdalene Brun Hansen
- Environmental Metabolomics Lab, Department of Environmental Science, Aarhus University, 4000 Roskilde, Denmark
| | - Martin Hansen
- Environmental Metabolomics Lab, Department of Environmental Science, Aarhus University, 4000 Roskilde, Denmark
| | - Morten Tønsberg Limborg
- Center for Evolutionary Hologenomics, GLOBE Institute, Faculty of Health and Medical Sciences, University of Copenhagen, 1353 Copenhagen, Denmark
| | - Kristian Syberg
- Department of Science and Environment, Roskilde University, 4000 Roskilde, Denmark
| | - Louise von Gersdorff Jørgensen
- Laboratory of Aquatic Pathobiology, Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C., Denmark.
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TGF-β1 signaling can worsen NAFLD with liver fibrosis backdrop. Exp Mol Pathol 2021; 124:104733. [PMID: 34914973 DOI: 10.1016/j.yexmp.2021.104733] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 11/08/2021] [Accepted: 12/08/2021] [Indexed: 12/11/2022]
Abstract
Non-Alcoholic Fatty Liver Disease (NAFLD) is characterized by the accumulation of fats in the liver. Relatively benign NAFLD often progresses to fibrosis, cirrhosis, and liver malignancies. Although NAFLD precedes fibrosis, continuous lipid overload keeps fueling fibrosis and the process of disease progression remains unhindered. It is well known that TGF-β1 plays its part in liver fibrosis, yet its effects on liver lipid overload remain unknown. As TGF-β1 signaling has been increasingly attempted to manage liver fibrosis, its actions on the primary suspect (NAFLD) are easily ignored. The complex interaction of inflammatory stress and lipid accumulation aided by mediators scuh as pro-inflammatory interleukins and TGF-β1 forms the basis of NAFLD progression. Anticipatorily, the inhibition of TGF-β1 signaling during anti-fibrotic treatment should reverse the NAFLD though the data remain scattered on this subject to date. TGF-β1 signaling pathway is an important drug target in liver fibrosis and abundant literature is available on it, but its direct effects on NAFLD are rarely studied. This review aims to cover the pathogenesis of NAFLD focusing on the role of the TGF-β1 in the disease progression, especially in the backdrop of liver fibrosis.
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Mohamed NA, Hashem MAM, Alzahrani AM, Abdel-Moneim AM, Abdou HM. Hepatoprotective effect of Spirulina platensis against carbon tetrachloride-induced liver injury in male rats. J Pharm Pharmacol 2021; 73:1562-1570. [PMID: 34387320 DOI: 10.1093/jpp/rgab107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 07/01/2021] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Spirulina platensis (SP) is an edible Cyanobacterium with ethnomedicinal significance. This study aims at evaluating the beneficial effect of SP against carbon tetrachloride (CCl4)-induced liver toxicity in male rats. METHODS Rats received intraperitoneal injections of CCl4 (2 ml/kg body weight [b.w.] per every other day) for 40 days, alone or in combination with oral treatments of SP (400 mg/kg b.w. per day). KEY FINDINGS SP attenuated haematological disturbances, serum liver markers, hepatic necrosis and inflammation, and dyslipidemia in CCl4-intoxicated rats. SP also reduced CCl4-induced oxidative stress by increasing the activities of antioxidant enzymes, such as glutathione peroxidase, superoxide dismutase and catalase and glutathione content, and inhibiting lipid peroxidation products and nitric oxide levels in the rat liver. Further investigations revealed that SP counteracted CCl4-induced increased hepatic levels of Ki-67 (a parameter of cell proliferation), interleukin-6, and tumour necrosis factor-alpha and cyclooxygenase-2 messenger RNA expression. Noticeably, the supplementation of SP restored the decrease of proapoptotic p53 protein levels in the liver of rats treated with CCl4. CONCLUSIONS SP prevented liver damage in CCl4-treated rats via augmentation of antioxidant defense mechanisms and inhibition of inflammatory cytokines/mediators and antiproliferative effects.
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Affiliation(s)
- Nema A Mohamed
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mohamed A M Hashem
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Abdullah M Alzahrani
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia
| | | | - Heba M Abdou
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
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Guevara-Cruz M, Medina-Vera I, Cu-Cañetas TE, Cordero-Chan Y, Torres N, Tovar AR, Márquez-Mota C, Talamantes-Gómez JM, Pérez-Monter C, Lugo R, Gutiérrez-Solis AL, Avila-Nava A. Chaya Leaf Decreased Triglycerides and Improved Oxidative Stress in Subjects With Dyslipidemia. Front Nutr 2021; 8:666243. [PMID: 34368206 PMCID: PMC8343181 DOI: 10.3389/fnut.2021.666243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 06/28/2021] [Indexed: 12/14/2022] Open
Abstract
Chaya is an edible leaf popular in Mexico and Central America because of its high nutritional value. Studies in animal models have demonstrated the beneficial effects of Chaya, which include reduction of circulating lipids and increase in antioxidant activity. However, its hypolipidemic and antioxidant effects have not been demonstrated in humans. Thus, the aim of the present study was to evaluate the effect of Chaya on the lipid profile, lipid peroxidation, inflammation, and peripheral blood mononuclear cell gene expression in a population with dyslipidemia. We performed a single-arm trial in 30 participants with dyslipidemia who consumed 500 mL of Chaya beverage per day over a 6-week period. Interestingly, we observed a significant decrease in serum triglyceride concentration (P < 0.05) and an increase in plasma antioxidant activity and polyphenol concentration (P < 0.005) after 6 weeks of Chaya consumption. This was accompanied by a reduction in the oxidative stress marker MDA (P < 0.0001) and by an increase in the antioxidant enzyme CAT expression in peripheral blood mononuclear cells (P < 0.001). Altogether, our results demonstrate that consumption of Chaya has hypotriglyceridemic and antioxidant effects in subjects with dyslipidemia.
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Affiliation(s)
- Martha Guevara-Cruz
- Departamento de Fisiología de la Nutrición, Instituto Nacional de Nutrición y Ciencias Médicas Salvador Zubirán, Ciudad de México, Mexico.,Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey, Mexico
| | - Isabel Medina-Vera
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey, Mexico.,Departamento de Metodología, Instituto Nacional de Pediatría, Ciudad de México, Mexico
| | | | | | - Nimbe Torres
- Departamento de Fisiología de la Nutrición, Instituto Nacional de Nutrición y Ciencias Médicas Salvador Zubirán, Ciudad de México, Mexico
| | - Armando R Tovar
- Departamento de Fisiología de la Nutrición, Instituto Nacional de Nutrición y Ciencias Médicas Salvador Zubirán, Ciudad de México, Mexico
| | - Claudia Márquez-Mota
- Departamento de Nutrición Animal y Bioquímica, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México (FMVZ-UNAM), Ciudad de México, Mexico
| | - José Moisés Talamantes-Gómez
- Departamento de Nutrición Animal y Bioquímica, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México (FMVZ-UNAM), Ciudad de México, Mexico
| | - Carlos Pérez-Monter
- Departamento de Gastroenterología, Instituto Nacional de Nutrición y Ciencias Médicas Salvador Zubirán, Ciudad de México, Mexico
| | - Roberto Lugo
- Hospital Regional de Alta Especialidad de la Península de Yucatán, Mérida, Mexico
| | | | - Azalia Avila-Nava
- Hospital Regional de Alta Especialidad de la Península de Yucatán, Mérida, Mexico
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Discovery of Quality Markers in Hugan Qingzhi Formula by Integrating a Lipid-Lowering Bioassay with UHPLC-QQQ-MS/MS. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:1594350. [PMID: 35198030 PMCID: PMC8860508 DOI: 10.1155/2020/1594350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 10/18/2020] [Accepted: 10/24/2020] [Indexed: 11/30/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a prevalent chronic liver disease. The Hugan Qingzhi formula (HGQZ) has been proven effective in treating NAFLD through clinical and pharmacological mechanism studies. A screening study of the chemical components was carried out to better control the quality of this formula. Current research has combined biological activity assessment with chemical analysis to screen and identify the bioactive compounds in HGQZ for use as potential quality markers (Q-markers) to control the quality of this herbal product. The HGQZ extracted by three different solvents was evaluated in a free fatty acid-induced hepatic steatosis LO2 cell model. Simultaneously, the twelve major chemical constituents of these extracts were quantitatively measured by ultrahigh-performance liquid chromatography coupled with triple quadrupole mass spectrometry (UHPLC-QQQ-MS/MS). Extraction with 50% ethanol showed the most potent lipid-lowering effect in steatosis LO2 cells and the highest extraction rate of major chemical constituents. Correlation analysis was used to establish the relationship between the biological activities and chemical characteristics of these extracts. The results showed that the contents of typhaneoside, hyperoside, isoquercitrin, isorhamnetin-3-O-neohesperidoside, notoginsenoside R1, and alisol B 23-acetate were positively correlated to the lipid-lowering effect. The subsequent bioassay confirmed that typhaneoside, isoquercitrin, and alisol B 23-acetate played the role of reducing the lipid effect. In conclusion, 50% of ethanol extraction produced the most active extract of HGQZ. Typhaneoside, isoquercitrin, and alisol B 23-acetate could be considered potential Q-markers for the quality control of HGQZ.
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Hassan FU, Arshad MA, Li M, Rehman MSU, Loor JJ, Huang J. Potential of Mulberry Leaf Biomass and Its Flavonoids to Improve Production and Health in Ruminants: Mechanistic Insights and Prospects. Animals (Basel) 2020; 10:E2076. [PMID: 33182363 PMCID: PMC7695318 DOI: 10.3390/ani10112076] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 10/28/2020] [Accepted: 11/04/2020] [Indexed: 12/13/2022] Open
Abstract
Leaf biomass from the mulberry plant (genus Morus and family Moraceae) is considered a potential resource for livestock feeding. Mulberry leaves (MLs) contain high protein (14.0-34.2%) and metabolizable energy (1130-2240 kcal/kg) with high dry matter (DM) digestibility (75-85%) and palatability. Flavonoid contents of MLs confer unique antioxidant properties and can potentially help alleviate oxidative stress in animals during stressful periods, such as neonatal, weaning, and periparturient periods. In addition, mulberry leaf flavonoids (MLFs) possess antimicrobial properties and can effectively decrease the population of ruminal methanogens and protozoa to reduce enteric methane (CH4) production. Owing to its rich flavonoid content, feeding MLs increases fiber digestion and utilization leading to enhanced milk production in ruminants. Dietary supplementation with MLFs alters ruminal fermentation kinetics by increasing total volatile fatty acids, propionate, and ammonia concentrations. Furthermore, they can substantially increase the population of specific cellulolytic bacteria in the rumen. Owing to their structural homology with steroid hormones, the MLFs can potentially modulate different metabolic pathways particularly those linked with energy homeostasis. This review aims to highlight the potential of ML and its flavonoids to modulate the ruminal microbiome, fermentation, and metabolic status to enhance productive performance and health in ruminants while reducing CH4 emission.
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Affiliation(s)
- Faiz-ul Hassan
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning 530001, China; (F.H.); (M.L.)
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad 38040, Pakistan; (M.A.A.); (M.S.R.)
| | - Muhammad Adeel Arshad
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad 38040, Pakistan; (M.A.A.); (M.S.R.)
| | - Mengwei Li
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning 530001, China; (F.H.); (M.L.)
| | - Muhammad Saif-ur Rehman
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad 38040, Pakistan; (M.A.A.); (M.S.R.)
| | - Juan J. Loor
- Department of Animal Sciences, Division of Nutritional Sciences, University of Illinois, Urbana, IL 61801, USA;
| | - Jiaxiang Huang
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Ministry of Agriculture and Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Sciences, Nanning 530001, China; (F.H.); (M.L.)
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Xin L, Gao J, Lin H, Qu Y, Shang C, Wang Y, Lu Y, Cui X. Regulatory Mechanisms of Baicalin in Cardiovascular Diseases: A Review. Front Pharmacol 2020; 11:583200. [PMID: 33224035 PMCID: PMC7667240 DOI: 10.3389/fphar.2020.583200] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/15/2020] [Indexed: 12/17/2022] Open
Abstract
Cardiovascular diseases (CVDs) is the leading cause of high morbidity and mortality worldwide, which emphasizes the urgent necessity to develop new pharmacotherapies. In eastern countries, traditional Chinese medicine Scutellaria baicalensis Georgi has been used clinically for thousands of years. Baicalin is one of the main active ingredients extracted from Chinese herbal medicine S. baicalensis. Emerging evidence has established that baicalin improves chronic inflammation, immune imbalance, disturbances in lipid metabolism, apoptosis and oxidative stress. Thereby it offers beneficial roles against the initiation and progression of CVDs such as atherosclerosis, hypertension, myocardial infarction and reperfusion, and heart failure. In this review, we summarize the pharmacological features and relevant mechanisms by which baicalin regulates CVDs in the hope to reveal its application for CVDs prevention and/or therapy.
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Affiliation(s)
- Laiyun Xin
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China.,Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jialiang Gao
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hongchen Lin
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yi Qu
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Chang Shang
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuling Wang
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yingdong Lu
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiangning Cui
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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15
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Yang Y, Ding Z, Wang Y, Zhong R, Feng Y, Xia T, Xie Y, Yang B, Sun X, Shu Z. Systems pharmacology reveals the mechanism of activity of Physalis alkekengi L. var. franchetii against lipopolysaccharide-induced acute lung injury. J Cell Mol Med 2020; 24:5039-5056. [PMID: 32220053 PMCID: PMC7205831 DOI: 10.1111/jcmm.15126] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 01/03/2020] [Accepted: 01/21/2020] [Indexed: 12/11/2022] Open
Abstract
Acute lung injury (ALI) is an important cause of mortality of patients with sepsis, shock, trauma, pneumonia, multiple transfusions and pancreatitis. Physalis alkekengi L. var. franchetii (Mast.) Makino (PAF) has been extensively used in Chinese folk medicine because of a good therapeutic effect in respiratory diseases. Here, an integrated approach combining network pharmacology, proton nuclear magnetic resonance-based metabolomics, histopathological analysis and biochemical assays was used to elucidate the mechanism of PAF against ALI induced by lipopolysaccharide (LPS) in a mouse model. We found that the compounds present in PAF interact with 32 targets to effectively improve the damage in the lung undergoing ALI. We predicted the putative signalling pathway involved by using the network pharmacology and then used the orthogonal signal correction partial least-squares discriminant analysis to analyse the disturbances in the serum metabolome in mouse. We also used ELISA, RT-qPCR, Western blotting, immunohistochemistry and TUNEL assay to confirm the potential signalling pathways involved. We found that PAF reduced the release of cytokines, such as TNF-α, and the accumulation of oxidation products; decreased the levels of NF-κB, p-p38, ERK, JNK, p53, caspase-3 and COX-2; and enhanced the translocation of Nrf2 from the cytoplasm to the nucleus. Collectively, PAF significantly reduced oxidative stress injury and inflammation, at the same time correcting the energy metabolism imbalance caused by ALI, increasing the amount of antioxidant-related metabolites and reducing the apoptosis of lung cells. These observations suggest that PAF may be an effective candidate preparation alleviating ALI.
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Affiliation(s)
- Yanni Yang
- Guangdong Standardized Processing Engineering Technology Research Center of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Zihe Ding
- Guangdong Standardized Processing Engineering Technology Research Center of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yi Wang
- Guangdong Standardized Processing Engineering Technology Research Center of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Renxing Zhong
- Guangdong Standardized Processing Engineering Technology Research Center of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yanlin Feng
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Tianyi Xia
- Guangdong Standardized Processing Engineering Technology Research Center of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yuanyuan Xie
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Bingyou Yang
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Zunpeng Shu
- Guangdong Standardized Processing Engineering Technology Research Center of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
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Arafa ESA, Hassan W, Murtaza G, Buabeid MA. Ficus carica and Sizigium cumini Regulate Glucose and Lipid Parameters in High-Fat Diet and Streptozocin-Induced Rats. J Diabetes Res 2020; 2020:6745873. [PMID: 33178838 PMCID: PMC7644324 DOI: 10.1155/2020/6745873] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 09/22/2020] [Accepted: 10/09/2020] [Indexed: 12/28/2022] Open
Abstract
Obesity linked diabetes, popularly known as diabesity, has been viewed as a direct product of the modern lifestyle in both developed and developing countries, and its increased prevalence is seen as a major threat to public health globally. Ficus carica (FC) and Syzigium cumini (SC) are part of indigenous flora with traditional medicinal properties. Fresh seeds of SC fruit and fruit of FC were collected and macerated to obtain the final extract. Wistar rats were divided into seven groups fed either on a normal diet or high-fat diet (HFD) along with streptozocin (STZ) to induce diabesity. The crude extract of FC (FC.Cr.) and SC (SC.Cr.) were administered at 250 mg/kg/day and 500 mg/kg/day in induced diabesity state. Body weights, blood glucose level, complete blood count (CBC), cholesterol, triglycerides (TG), low-density lipoprotein (LDL), very-low-density lipoprotein (VLDL), and high-density lipoprotein (HDL) were recorded to analyze their effects on glucose and lipid metabolism. Further, superoxide dismutase (SOD) and malondialdehyde (MDA) were measured to examine their effects on lipid peroxidation and ant oxidative enzyme. Results showed that both FC.Cr. and SC.Cr. have the potential to control obesity-linked type 2 diabetes mellitus (T2DM) by lowering the body weights, serum glucose, cholesterol, TG, LDL, and VLDL, while increasing the protective effects of HDL dose-dependently. The crude extract of both plants showed significant activity to raise SOD and curb MDA under diabetic states. It was concluded that both FC.Cr. and SC.Cr. exhibited remarkable therapeutics potential in HFD-STZ-induced diabetic rats. However, we found that the effects of SC.Cr. are relatively more pronounced as compared to FC.Cr. in almost all parameters.
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Affiliation(s)
- El-Shaimaa A. Arafa
- College of Pharmacy and Health Sciences, Ajman University, Ajman 346, UAE
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Benisuef University, Beni-suef, 62514, Egypt
| | - Waseem Hassan
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
| | - Ghulam Murtaza
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan
| | - Manal Ali Buabeid
- College of Pharmacy and Health Sciences, Ajman University, Ajman 346, UAE
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Dal Forno AH, Câmara D, Parise B, Rodrigues CF, Soares JJ, Wagner R, Ribeiro SR, Folmer V, Puntel R, Haas SE, Farias FM, Denardin EL, Denardin CC, Avila DS. Antioxidant and lipid lowering effects of dried fruits oil extract of Pterodon emarginatusin Caenorhabditis elegans. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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18
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Qiu J, Yang X, Wang L, Zhang Q, Ma W, Huang Z, Bao Y, Zhong L, Sun H, Ding F. Isoquercitrin promotes peripheral nerve regeneration through inhibiting oxidative stress following sciatic crush injury in mice. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:680. [PMID: 31930081 DOI: 10.21037/atm.2019.11.18] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background Oxidative stress has been recognized to play a crucial role in the pathogenesis of peripheral nerve injury. Isoquercitrin (quercetin-3-glucoside) is a flavonoid that exhibited many biological activities, including anti-oxidative effect. However, it is unclear whether isoquercitrin has protective effects on peripheral nerve injury. Methods Mice treated by isoquercitrin were used as a case group, and mice injected with saline was the control group. Sciatic behavioral function was assessed using SFI and CMAPs were measured by electrophysiology. Schwann cells proliferation and migration were tested using EdU staining and Transwell migration chambers respectively. The expression of oxidative stress related factors were detected by qRT-PCR and Western blotting. Results In present study, our results demonstrated that isoquercitrin (20 mg/kg/day) treatment achieved significantly higher SFI and higher amplitude of CMAP, promoted the nerve regeneration and remyelination, increased the production of GAP43, NF200, MAG and PMP22, alleviated target muscle atrophy and autophagy, and suppressed the expression of ATG7, PINK1 and Beclin1 in soleus muscles after sciatic nerve crush. In vitro studies found that isoquercitrin promoted the axonal regeneration of DRGs neurons, the proliferation and migration of Schwann cells, and the expression of proliferating cell nuclear antigen (PCNA) in Schwann cells. The administration of isoquercitrin at 40 and 320 µM showed a dose dependent, and high doses of isoquercitrin (160 and 320 µM) showed better performance in promoting axonal regeneration of DRGs neurons, and the proliferation and migration of Schwann cells than low dose of isoquercitrin (40 µM). Furthermore, isoquercitrin significantly inhibited oxidative stress through reducing the production of Nox4 and Duox1, and promoting the expression of Nrf2 and SOD2 in soleus muscles after sciatic nerve crush. Conclusions Isoquercitrin may promote motor functional recovery and nerve regeneration following peripheral nerve injury though inhibition of oxidative stress, which highlighted the therapeutic values of isoquercitrin as a neuroprotective drug for peripheral nerve repair applications.
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Affiliation(s)
- Jiaying Qiu
- School of Biology and Basic Medical Sciences, Medical College of Soochow University, Suzhou 215123, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Xiaoming Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Lingbin Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Qiuyu Zhang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Wenjing Ma
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Ziwei Huang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Yuhua Bao
- Affiliated Hospital of Nantong University, Nantong University, Nantong 226001, China
| | - Lou Zhong
- Affiliated Hospital of Nantong University, Nantong University, Nantong 226001, China
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Fei Ding
- School of Biology and Basic Medical Sciences, Medical College of Soochow University, Suzhou 215123, China.,Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
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Water Extract of Curcuma longa L. Ameliorates Non-Alcoholic Fatty Liver Disease. Nutrients 2019; 11:nu11102536. [PMID: 31640183 PMCID: PMC6835554 DOI: 10.3390/nu11102536] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 12/12/2022] Open
Abstract
Our aim was to investigate whether hot water extract (CLW) of Curcuma longa L. could prevent non-alcoholic fatty liver disease (NAFLD). HepG2 cells were treated with free fatty acid (FFA) mixture (oleic acid: palmitic acid, 2:1) for 24 h to stimulate in vitro fatty liver. In addition, C57BL/6 mice were fed 60 kcal% high-fat (HF) diet for eight weeks to induce fatty liver in vivo. Intracellular reactive oxygen species (ROS) and malondialdehyde (MDA) productions were increased by FFA and HF-diet, but supplementation with CLW significantly decreased these levels. CLW treatment ameliorated antioxidant activities that were suppressed by exposure to the FFA and HF-diet. Cluster of differentiation 36 (CD36) and fatty acid transport proteins (FATP2 and FATP5) were increased in HF-diet groups, while CLW suppressed their expression levels. Moreover, sterol regulatory element-binding protein-1c (SREBP-1c), acetyl-coenzyme A carboxylase (ACC), and fatty acid synthase (FAS) expression levels were down-regulated in the CLW groups compared to HF-diet groups. On the other hand, 5′ adenosine monophosphate-activated protein kinase (AMPK), Peroxisome proliferator-activated receptor alpha (PPAR-α), and carnitine palmitoyltransferase 1 (CPT-1) expressions were up-regulated in the CLW groups. HF-diet fed mice showed high hepatic triglycerides (TG) content compared to the normal diet mice. However, the administration of CLW restored the hepatic TG level, indicating an inhibitory effect against lipid accumulation by CLW. These results suggest that CLW could be a potentially useful agent for the prevention of NAFLD through modulating fatty acid uptake.
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Sohn E, Lim HS, Kim YJ, Kim BY, Jeong SJ. Annona atemoya Leaf Extract Improves Scopolamine-Induced Memory Impairment by Preventing Hippocampal Cholinergic Dysfunction and Neuronal Cell Death. Int J Mol Sci 2019; 20:ijms20143538. [PMID: 31331043 PMCID: PMC6679418 DOI: 10.3390/ijms20143538] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/15/2019] [Accepted: 07/17/2019] [Indexed: 01/08/2023] Open
Abstract
We explored the preventative effect of Annona atemoya leaf (AAL) extract on memory impairment in a scopolamine (SCO)-induced cognitive deficit mouse model. Fifty-eight mice were randomly divided into six groups and orally treated with AAL extract at (50, 100, or 200 mg/kg) or tacrine (TAC) for 21 days. Memory deficits were induced by a single injection of 1 mg/kg SCO (i.p.) and memory improvement was evaluated by using behavioral tests such as the passive avoidance task and Y-maze test. The levels of cholinergic functions, neuronal cell death, reactive oxygen species, and protein expression related to hippocampal neurogenesis were examined by immunohistochemical staining and western blotting. The administration of AAL extract improved memory impairment according to increased spontaneous alternation in the Y-maze and step-through latency in passive avoidance test. AAL extract treatment increased the acetylcholine content, choline acetyltransferase, and acetylcholinesterase activity in the hippocampus of SCO-stimulated mice. In addition, AAL extract attenuated oxidative stress-induced neuronal cell death of hippocampal tissue. In terms of the regulatory mechanisms, AAL extract treatment reversed the SCO-induced decreases in the expression of Akt, phosphorylation of cAMP response element binding protein, and brain-derived neurotrophic factor. Our findings demonstrate that AAL extract has the ability to alleviate memory impairment through preventative effect on cholinergic system dysfunction and oxidative stress-related neuronal cell death in a SCO-induced memory deficit animal model. Overall, AAL may be a promising plant resource for the managing memory dysfunction due to neurodegenerative diseases, such as Alzheimer’s disease (AD).
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Affiliation(s)
- Eunjin Sohn
- Clinical Medicine Division, Korea Institute of Oriental Medicine, Daejeon 34054, Korea.
| | - Hye-Sun Lim
- Clinical Medicine Division, Korea Institute of Oriental Medicine, Daejeon 34054, Korea
| | - Yu Jin Kim
- Clinical Medicine Division, Korea Institute of Oriental Medicine, Daejeon 34054, Korea
- College of Pharmacy, Chungnam National University, Daejeon 34134, Korea
| | - Bu-Yeo Kim
- Clinical Medicine Division, Korea Institute of Oriental Medicine, Daejeon 34054, Korea
| | - Soo-Jin Jeong
- Clinical Medicine Division, Korea Institute of Oriental Medicine, Daejeon 34054, Korea.
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Maronpot RR, Ramot Y, Koyanagi M, Dias N, Cameron D, Eniola S, Nyska A, Hayashi SM. Ten-day and four-week toxicity and toxicokinetics studies of alpha-glycosyl isoquercitrin in juvenile Göttingen minipigs. TOXICOLOGY RESEARCH AND APPLICATION 2019. [DOI: 10.1177/2397847319855087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
| | - Yuval Ramot
- Hadassah Medical Center, Hebrew University of Jerusalem, The Faculty of Medicine, Jerusalem, Israel
| | - Mihoko Koyanagi
- Global Scientific and Regulatory Affairs, San-Ei Gen F.F.I., Inc., Osaka, Japan
| | - Nicola Dias
- Envigo CRS Ltd., Huntingdon, Cambridgeshire, UK
| | | | | | - Abraham Nyska
- Consultant in Toxicologic Pathology, Timrat, Israel
- Tel Aviv University, Tel Aviv, Israel
| | - Shim-mo Hayashi
- Global Scientific and Regulatory Affairs, San-Ei Gen F.F.I., Inc., Osaka, Japan
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Xie C, Jiang J, Liu J, Yuan G, Zhao Z. Triptolide suppresses human synoviocyte MH7A cells mobility and maintains redox balance by inhibiting autophagy. Biomed Pharmacother 2019; 115:108911. [PMID: 31079001 DOI: 10.1016/j.biopha.2019.108911] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 04/18/2019] [Accepted: 04/22/2019] [Indexed: 12/18/2022] Open
Abstract
Triptolide (TPL), the main active ingredient in Tripterygium glycosides, has been reported to exert anti-inflammation and anti-tumor effects. The present study was designed to investigate the effects of TPL on rheumatoid arthritis (RA) and explore the underlying mechanisms. By using human synoviocyte MH7A cells, TPL was proven to significantly impede migration and invasion of MH7A cells, and also inhibited MMP-2 and MMP-9 expression. Moreover, TPL was found to increase SOD, CAT, GSH-Px activities while decrease MDA activity, indicating that TPL maintained redox balance in MH7A cells. TPL could down-regulate the number of LC3+ puncta, Beclin1 expression and LC3 II/I ratio in a concentration-dependent manner, indicating that TPL inhibited autophagy in MH7A cells. Activation of autophagy was found to counteract the effects of TPL on MH7A cells while inhibition of autophagy had the opposite effects. Our data demonstrated that TPL suppressed cell mobility and maintained redox balance through inhibiting autophagy in MH7A cells. Finally, our data revealed that TPL increased p-AKT/AKT ratio significantly and inhibition of PI3K/AKT signaling pathway activated autophagy in MH7A cells, suggesting that TPL suppressed autophagy through activating AKT signaling pathway in MH7A cells. Taken together, our present study revealed that TPL inhibited cell mobility and maintained redox balance in human synoviocyte MH7A cells through autophagy inhibition. Our findings suggested the potential clinical application of TPL on RA treatment.
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Affiliation(s)
- Chuanmei Xie
- Department of Rheumatology, Affiliated Hospital of North Sichuan Medical College, Nanchong City, Sichuan Province, China
| | - Jing Jiang
- Department of Gynecology and Obstetrics, The Affiliated Hospital of North Sichuan Medical College, Nanchong City, Sichuan Province, China
| | - Jianping Liu
- Department of Rheumatology, Affiliated Hospital of North Sichuan Medical College, Nanchong City, Sichuan Province, China
| | - Guohua Yuan
- Department of Rheumatology, Affiliated Hospital of North Sichuan Medical College, Nanchong City, Sichuan Province, China.
| | - Zhenyi Zhao
- Department of Rheumatology, Affiliated Hospital of North Sichuan Medical College, Nanchong City, Sichuan Province, China
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Seo E, Kang H, Choi H, Choi W, Jun HS. Reactive oxygen species-induced changes in glucose and lipid metabolism contribute to the accumulation of cholesterol in the liver during aging. Aging Cell 2019; 18:e12895. [PMID: 30609251 PMCID: PMC6413652 DOI: 10.1111/acel.12895] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/29/2018] [Accepted: 11/15/2018] [Indexed: 12/13/2022] Open
Abstract
Aging is a major risk factor for many chronic diseases due to increased vulnerability to external stress and susceptibility to disease. Aging is associated with metabolic liver disease such as nonalcoholic fatty liver. In this study, we investigated changes in lipid metabolism during aging in mice and the mechanisms involved. Lipid accumulation was increased in liver tissues of aged mice, particularly cholesterol. Increased uptake of both cholesterol and glucose was observed in hepatocytes of aged mice as compared with younger mice. The mRNA expression of GLUT2, GK, SREBP2, HMGCR, and HMGCS, genes for cholesterol synthesis, was gradually increased in liver tissues during aging. Reactive oxygen species (ROS) increase with aging and are closely related to various aging‐related diseases. When we treated HepG2 cells and primary hepatocytes with the ROS inducer, H2O2, lipid accumulation increased significantly compared to the case for untreated HepG2 cells. H2O2 treatment significantly increased glucose uptake and acetyl‐CoA production, which results in glycolysis and lipid synthesis. Treatment with H2O2 significantly increased the expression of mRNA for genes related to cholesterol synthesis and uptake. These results suggest that ROS play an important role in altering cholesterol metabolism and consequently contribute to the accumulation of cholesterol in the liver during the aging process.
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Affiliation(s)
- Eunhui Seo
- College of Pharmacy and Gachon Institute of Pharmaceutical Science; Gachon University; Incheon Republic of Korea
- Lee Gil Ya Cancer and Diabetes Institute; Gachon University; Incheon Republic of Korea
| | - Hwansu Kang
- College of Pharmacy and Gachon Institute of Pharmaceutical Science; Gachon University; Incheon Republic of Korea
- Lee Gil Ya Cancer and Diabetes Institute; Gachon University; Incheon Republic of Korea
| | - Hojung Choi
- College of Pharmacy and Gachon Institute of Pharmaceutical Science; Gachon University; Incheon Republic of Korea
- Lee Gil Ya Cancer and Diabetes Institute; Gachon University; Incheon Republic of Korea
| | - Woohyuk Choi
- Lee Gil Ya Cancer and Diabetes Institute; Gachon University; Incheon Republic of Korea
- Division of Life Sciences; Korea University; Seoul Republic of Korea
| | - Hee-Sook Jun
- College of Pharmacy and Gachon Institute of Pharmaceutical Science; Gachon University; Incheon Republic of Korea
- Lee Gil Ya Cancer and Diabetes Institute; Gachon University; Incheon Republic of Korea
- Gachon Medical Research Institute, Gil Hospital; Incheon Republic of Korea
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24
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Kim JH, Lee S, Cho EJ. Acer okamotoanumand isoquercitrin improve cognitive functionviaattenuation of oxidative stress in high fat diet- and amyloid beta-induced mice. Food Funct 2019; 10:6803-6814. [DOI: 10.1039/c9fo01694e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
High fat diet (HFD) and accumulation of amyloid beta (Aβ) are known as a risk factor of Alzheimer's disease.Acer okamotoanumand isoquercitrin improved cognition function against both HFD and Aβ accumulation by inhibiting oxidative stress.
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Affiliation(s)
- Ji Hyun Kim
- Department of Food Science and Nutrition & Kimchi Research Institute
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Sanghyun Lee
- Department of Plant Science and Technology
- Chung-Ang University
- Anseong 17546
- Republic of Korea
| | - Eun Ju Cho
- Department of Food Science and Nutrition & Kimchi Research Institute
- Pusan National University
- Busan 46241
- Republic of Korea
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25
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Uchio R, Murosaki S, Ichikawa H. Hot water extract of turmeric ( Curcuma longa) prevents non-alcoholic steatohepatitis in mice by inhibiting hepatic oxidative stress and inflammation. J Nutr Sci 2018; 7:e36. [PMID: 30627433 PMCID: PMC6313422 DOI: 10.1017/jns.2018.27] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 11/13/2018] [Accepted: 11/21/2018] [Indexed: 02/07/2023] Open
Abstract
Curcuma longa, also known as turmeric, has long been used as a medicinal herb with various biological effects. A hot water extract of C. longa (WEC) has been reported to show antioxidant and anti-inflammatory activity, but its effect on hepatic inflammation is poorly understood. In the present study, to investigate the effect of WEC on non-alcoholic steatohepatitis, C57BL/6J mice were fed a low-methionine, choline-deficient diet with 0·175 % WEC (WEC group) or without WEC (control group) for 6 or 12 weeks. Although hepatic steatosis was similar in the WEC group and the control group, WEC suppressed the elevation of plasma aspartate aminotransferase and alanine aminotransferase, which are markers of hepatocellular damage. Compared with the control group, the WEC group had higher hepatic levels of reduced glutathione and superoxide dismutase, as well as a lower hepatic level of thiobarbituric acid-reactive substances. WEC also reduced hepatic expression of mRNA for inflammatory factors, including TNF-α, IL-1β, IL-6, monocyte chemoattractant protein-1, vascular cell adhesion molecule-1, F4/80 and CC motif chemokine receptor 2. Histological examination revealed that WEC suppressed hepatic recruitment of F4/80+ monocytes/macrophages and inhibited hepatic fibrosis. Furthermore, WEC inhibited hepatic expression of mRNA for molecules related to fibrosis, such as transforming growth factor-β, α-smooth muscle actin, type I collagen (α1-chain) and tissue inhibitor of matrix metalloproteinase-1. These findings suggest that dietary intake of WEC prevents the progression of non-alcoholic steatohepatitis by alleviating hepatic oxidative stress and inflammation.
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Key Words
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- CCR2, CC motif chemokine receptor 2
- COL1A1, α1-chain of type I collagen
- Fibrosis
- GSH, reduced glutathione
- GSSG, oxidised glutathione
- HSC, hepatic stellate cells
- Inflammation
- KC, Kupffer cells
- LMCD, low-methionine, choline-deficient
- MCP-1, monocyte chemoattractant protein-1
- NASH, non-alcoholic steatohepatitis
- Non-alcoholic steatohepatitis
- Oxidative stress
- ROS, reactive oxygen species
- SOD, superoxide dismutase
- TBARS, thiobarbituric acid-reactive substances
- TGF-β, transforming growth factor-β
- TIMP-1, tissue inhibitor of metalloproteinases-1
- Turmeric (Curcuma longa)
- VCAM-1, vascular cell adhesion molecule-1
- WEC, hot water extract of Curcuma longa
- α-SMA, α-smooth muscle actin
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Affiliation(s)
- Ryusei Uchio
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe City, Kyoto 610-0321, Japan
| | - Shinji Murosaki
- Nihon Pharmaceutical University, Komuro 10281, Ina-machi, Kitaadachi-gun, Saitama 362-0806, Japan
| | - Hiroshi Ichikawa
- Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, 1-3 Tatara Miyakodani, Kyotanabe City, Kyoto 610-0321, Japan
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26
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Isoquercetin Improves Hepatic Lipid Accumulation by Activating AMPK Pathway and Suppressing TGF-β Signaling on an HFD-Induced Nonalcoholic Fatty Liver Disease Rat Model. Int J Mol Sci 2018; 19:ijms19124126. [PMID: 30572631 PMCID: PMC6321444 DOI: 10.3390/ijms19124126] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/17/2018] [Accepted: 12/19/2018] [Indexed: 02/06/2023] Open
Abstract
Isoquercetin (IQ), a glucoside derivative of quercetin, has been reported to have beneficial effects in nonalcoholic fatty liver disease (NAFLD). In this study, we investigated the potential improvement of IQ in liver lipid accumulation, inflammation, oxidative condition, and activation in Kupffer cells (KCs) on a high-fat diet (HFD) induced NAFLD models. Male Sprague-Dawley (SD) rats were induced by HFD, lipopolysaccharides/free fatty acids (LPS/FFA) induced co-culture cells model between primary hepatocytes and Kupffer cells was used to test the effects and the underlying mechanism of IQ. Molecular docking was performed to predict the potential target of IQ. Significant effects of IQ were found on reduced lipid accumulation, inflammation, and oxidative stress. In addition, AMP-activated protein kinase (AMPK) pathway was activated by IQ, and is plays an important role in lipid regulation. Meanwhile, IQ reversed the increase of activated KCs which caused by lipid overload, and also suppression of Transforming growth factor beta (TGF-β) signaling by TGF-β Recptor-1 and SMAD2/3 signaling. Finally, TGF-βR1 and TGF-βR2 were both found may involve in the mechanism of IQ. IQ can improve hepatic lipid accumulation and decrease inflammation and oxidative stress by its activating AMPK pathway and suppressing TGF-β signaling to alleviate NAFLD.
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27
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Huang SH, Xu M, Wu HM, Wan CX, Wang HB, Wu QQ, Liao HH, Deng W, Tang QZ. Isoquercitrin Attenuated Cardiac Dysfunction Via AMPKα-Dependent Pathways in LPS-Treated Mice. Mol Nutr Food Res 2018; 62:e1800955. [PMID: 30359483 DOI: 10.1002/mnfr.201800955] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 09/11/2018] [Indexed: 12/11/2022]
Abstract
SCOPE Isoquercitrin (IQC) has been reported to play a protective role in many pathological conditions. Here, the effects of IQC on lipopolysaccharide (LPS)-induced cardiac dysfunction are investigated, exploring its potential molecular mechanisms. METHODS AND RESULTS C57BL/6 mice or H9c2 cardiomyoblasts are subjected to LPS challenge for 12 h. Pretreatment with IQC attenuates LPS-induced cardiac dysfunction. IQC remarkably reduces LPS-mediated inflammatory responses by inhibiting the mRNA levels of TNF-α, IL6, and MCP1 as well as the protein levels of p-IKKβ, p-IκBα, and p-p65 in vivo and in vitro. Interestingly, IQC administration also improves energy deficiencies caused by LPS, manifesting as significant increases in cardiac and cellular ATP levels. Furthermore, ATP levels increase due to the upregulation of PGC1β and PPAR-α, which enhances fatty acid oxidation in vivo and in vitro. However, the protective roles of IQC against LPS-mediated increased inflammatory responses and decreased acid fatty oxidation are partially blunted by inhibiting AMPKα in vitro, and suppressing AMPKα partially blocks the increased cardiac function elicited by IQC in LPS-treated mice. CONCLUSION IQC attenuates LPS-induced cardiac dysfunction by inhibiting inflammatory responses and by enhancing fatty acid oxidation, partially by activating AMPKα. IQC might be a potential drug for sepsis-induced cardiac dysfunction.
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Affiliation(s)
- Si-Hui Huang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, P.R. China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, P.R. China.,Hubei Key Laboratory of Cardiology, Wuhan, 430060, P.R. China
| | - Man Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, P.R. China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, P.R. China.,Hubei Key Laboratory of Cardiology, Wuhan, 430060, P.R. China
| | - Hai-Ming Wu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, P.R. China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, P.R. China.,Hubei Key Laboratory of Cardiology, Wuhan, 430060, P.R. China
| | - Chun-Xia Wan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, P.R. China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, P.R. China.,Hubei Key Laboratory of Cardiology, Wuhan, 430060, P.R. China
| | - Hui-Bo Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, P.R. China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, P.R. China.,Hubei Key Laboratory of Cardiology, Wuhan, 430060, P.R. China
| | - Qing-Qing Wu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, P.R. China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, P.R. China.,Hubei Key Laboratory of Cardiology, Wuhan, 430060, P.R. China
| | - Hai-Han Liao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, P.R. China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, P.R. China.,Hubei Key Laboratory of Cardiology, Wuhan, 430060, P.R. China
| | - Wei Deng
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, P.R. China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, P.R. China.,Hubei Key Laboratory of Cardiology, Wuhan, 430060, P.R. China
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430060, P.R. China.,Cardiovascular Research Institute, Wuhan University, Wuhan, 430060, P.R. China.,Hubei Key Laboratory of Cardiology, Wuhan, 430060, P.R. China
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28
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Naowaboot J, Wannasiri S, Pannangpetch P. Vernonia cinerea water extract improves insulin resistance in high-fat diet-induced obese mice. Nutr Res 2018; 56:51-60. [PMID: 30055774 DOI: 10.1016/j.nutres.2018.04.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 01/17/2018] [Accepted: 04/27/2018] [Indexed: 12/17/2022]
Abstract
Vernonia cinerea (V cinerea) is a plant distributed in grassy areas in Southeast Asia and has several pharmacological effects, including antidiabetic activity. However, the information available regarding the effect of V cinerea on insulin resistance in high-fat diet (HFD)-induced obese mice is not yet determined. We hypothesized that V cinerea water extract (VC) improves insulin sensitivity in HFD-induced obese mice by modulating both phosphatidylinositol-3-kinase (PI3K) and adenosine monophosphate-activated protein kinase (AMPK) pathways in liver, skeletal muscle, and adipose tissue. Obesity was induced in mice from the Institute for Cancer Research by feeding an HFD 188.28 kJ (45 kcal % lard fat) for 12 weeks. During the last 6 weeks of the HFD, obese mice were treated with VC (250 and 500 mg/kg). We found that VC at both doses significantly reduced the hyperglycemia, hyperinsulinemia, hyperleptinemia, and hyperlipidemia. Obese mice treated with VC could increase serum adiponectin but reduce the proinflammatory cytokines, tumor necrosis factor-α, and monocyte chemoattractant protein-1. The extracts decreased triglyceride storage in liver and skeletal muscle of obese mice. The average size of fat cells was smaller in VC-treated groups than that of the HFD group. The protein expressions of PI3K and AMPK pathways in liver, skeletal muscle, and adipose tissue were upregulated (increased phosphorylation of PI3K, protein kinase B, AMPK, and acetyl-CoA carboxylase) by VC treatment. Furthermore, the glucose transporter 4 was increased in muscle and adipose tissue in obese mice treated with VC. These data indicate that VC treatment stimulates phosphorylation of PI3K and AMPK pathways in liver, muscle, and adipose tissue. Stimulating these pathways may improve impaired glucose and lipid homeostasis in an HFD-induced obesity mouse model. Based on these findings, it appears that VC has potential as a functional food or therapeutic agent in management of insulin resistance related diseases, such as type 2 diabetes mellitus.
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Affiliation(s)
- Jarinyaporn Naowaboot
- Division of Pharmacology, Department of Preclinical Science, Faculty of Medicine, Thammasat University (Rangsit Campus), Pathum Thani 12120, Thailand.
| | - Supaporn Wannasiri
- Division of Physiology, Department of Preclinical Science, Faculty of Medicine, Thammasat University (Rangsit Campus), Pathum Thani 12120, Thailand
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29
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Arctigenin protects against steatosis in WRL68 hepatocytes through activation of phosphoinositide 3-kinase/protein kinase B and AMP-activated protein kinase pathways. Nutr Res 2018. [DOI: 10.1016/j.nutres.2018.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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30
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Wu Y, Wang F, Fan L, Zhang W, Wang T, Du Y, Bai X. Baicalin alleviates atherosclerosis by relieving oxidative stress and inflammatory responses via inactivating the NF-κB and p38 MAPK signaling pathways. Biomed Pharmacother 2017; 97:1673-1679. [PMID: 29793330 DOI: 10.1016/j.biopha.2017.12.024] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/21/2017] [Accepted: 12/05/2017] [Indexed: 12/12/2022] Open
Abstract
Atherosclerosis (AS) is a chronic progressive disease related to inflammatory reaction. Baicalin is a flavonoid isolated from Scutellaria baicalensis georgi (Huang-qin) and exerts anti-inflammation effects in various diseases. Here, we investigated the protective effects of baicalin treatment and the potential mechanism in AS progression on AS mouse model. After ApoE-/- mice with high-lipid diets had received 12 weeks' of baicalin treatment at different concentrations, plasma lipids levels and atherosclerotic plaque areas in aorta were measured and there exhibited a prominent improvement in the baicalin treated mice compared with mice in AS model group. The expression of lipolysis related proteins (PPARα, CPT-1) was increased while the expression of adipogenesis related proteins (SREBP-1c, ACS) was decreased by baicalin treatment, indicating the anti-adipogenic effect of baicalin. Moreover, baicalin up-regulated the activities of antioxidant enzymes (SOD, CAT and GSH-Px) and down-regulated the activity of oxidative parameter MDA compared with AS model group, indicating the anti-oxidant effect of baicalin. The increased levels of pro-inflammatory cytokines (IL-6, TNF-α, sVE-cadherin) induced by AS were also decreased by baicalin treatment, indicating that baicalin acted as an anti-inflammation regulator in AS. In addition, we further explored the potential mechanism of baicalin treatment on AS, and found that baicalin treatment attenuated the high phosphorylation levels of JNK, p65, p-38 and ERK1/2 induced by AS, indicating that baicalin treatment inhibited the NF-κB and p38 MAPK signaling pathways in AS. In conclusion, baicalin treatment inhibited the NF-κB and p38 MAPK signaling pathways, thereby achieved its anti-adipogenic effect, anti-oxidant effect and anti-inflammation effect in a dose-dependent manner in AS.
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Affiliation(s)
- Yuliang Wu
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an City, Shaanxi Province, 710061, China
| | - Fang Wang
- Department of Cardiology, Han Zhong Central Hospital, Hanzhong City, Shaanxi Province, 723000, China
| | - Lihong Fan
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an City, Shaanxi Province, 710061, China
| | - Weiping Zhang
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an City, Shaanxi Province, 710061, China
| | - Tingzhong Wang
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an City, Shaanxi Province, 710061, China
| | - Yuan Du
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an City, Shaanxi Province, 710061, China
| | - Xiaojun Bai
- Department of Cardiology, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an City, Shaanxi Province, 710061, China.
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31
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Wang L, Lin Q, Yang T, Liang Y, Nie Y, Luo Y, Shen J, Fu X, Tang Y, Luo F. Oryzanol Modifies High Fat Diet-Induced Obesity, Liver Gene Expression Profile, and Inflammation Response in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:8374-8385. [PMID: 28853872 DOI: 10.1021/acs.jafc.7b03230] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In Western countries and China, the dietary habit of high calories usually results in hyperlipidemia, which is closely associated with cardiovascular diseases. In the study, we investigated the antihyperlipidemic effect of oryzanol and its molecular mechanism in the high fat diet (HFD) mouse model. In total, 60 ICR mice were randomly divided into control group, HFD group, and HFD+Ory group. The mice from the HFD+Ory group were additionally fed with 100 mg/kg of oryzanol by intragastric administration. Our data indicated that oryzanol treatment for 10 weeks significantly reduced bodyweight, liver weight, and adipose tissues weight of the mice; lowered the contents of total cholesterol (TC), triglycerides (TG), and low density lipoprotein-cholesterol (LDL-C); and elevated high density lipoprotein-cholesterol (HDL-C) in the plasma of HFD mice. Compared with the HFD group, H&E staining showed that oryzanol treatment decreased the size of fat droplets of liver tissues and the size of adipocytes. Gene chip data found that oryzanol administration caused 32 genes to increase expressions while 60 genes had reduced expressions in the liver tissues of HFD mice. IPA software was used to analyze the protein interaction network and found that transcript factor NF-κB located in the central role of network, meaning NF-κB may have important function in the lipid-lowering effect of oryzanol. Western blotting and RT-qPCR confirmed that lipid metabolism-related gene expressions were obviously regulated by oryzanol administration. Oryzanol also inhibited expressions of inflammatory factor in the liver tissues of HDF mice. Taken together, our data indicate that oryzanol treatment can regulate lipid metabolism-related gene expressions and inhibit HDF-caused obesity in mice.
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Affiliation(s)
- Long Wang
- Laboratory of Molecular Nutrition, College of Food Science and Engineering, The Key Laboratory of Hunan Province for Special Medical Food, National Engineering Laboratory for Deep Processing of Rice and Byproducts, Central South University of Forestry and Technology , Changsha, Hunan 410004, China
| | - Qinlu Lin
- Laboratory of Molecular Nutrition, College of Food Science and Engineering, The Key Laboratory of Hunan Province for Special Medical Food, National Engineering Laboratory for Deep Processing of Rice and Byproducts, Central South University of Forestry and Technology , Changsha, Hunan 410004, China
| | - Tao Yang
- Laboratory of Molecular Nutrition, College of Food Science and Engineering, The Key Laboratory of Hunan Province for Special Medical Food, National Engineering Laboratory for Deep Processing of Rice and Byproducts, Central South University of Forestry and Technology , Changsha, Hunan 410004, China
| | - Ying Liang
- Laboratory of Molecular Nutrition, College of Food Science and Engineering, The Key Laboratory of Hunan Province for Special Medical Food, National Engineering Laboratory for Deep Processing of Rice and Byproducts, Central South University of Forestry and Technology , Changsha, Hunan 410004, China
| | - Ying Nie
- Laboratory of Molecular Nutrition, College of Food Science and Engineering, The Key Laboratory of Hunan Province for Special Medical Food, National Engineering Laboratory for Deep Processing of Rice and Byproducts, Central South University of Forestry and Technology , Changsha, Hunan 410004, China
| | - Yi Luo
- Department of Clinic Medicine, Xiangya School of Medicine, Central South University , Changsha, Hunan 410008, China
| | - Junjun Shen
- Laboratory of Molecular Nutrition, College of Food Science and Engineering, The Key Laboratory of Hunan Province for Special Medical Food, National Engineering Laboratory for Deep Processing of Rice and Byproducts, Central South University of Forestry and Technology , Changsha, Hunan 410004, China
| | - Xiangjin Fu
- Laboratory of Molecular Nutrition, College of Food Science and Engineering, The Key Laboratory of Hunan Province for Special Medical Food, National Engineering Laboratory for Deep Processing of Rice and Byproducts, Central South University of Forestry and Technology , Changsha, Hunan 410004, China
| | - Yiping Tang
- Laboratory of Molecular Nutrition, College of Food Science and Engineering, The Key Laboratory of Hunan Province for Special Medical Food, National Engineering Laboratory for Deep Processing of Rice and Byproducts, Central South University of Forestry and Technology , Changsha, Hunan 410004, China
| | - Feijun Luo
- Laboratory of Molecular Nutrition, College of Food Science and Engineering, The Key Laboratory of Hunan Province for Special Medical Food, National Engineering Laboratory for Deep Processing of Rice and Byproducts, Central South University of Forestry and Technology , Changsha, Hunan 410004, China
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32
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Antioxidant properties of tea blunt ROS-dependent lipogenesis: beneficial effect on hepatic steatosis in a high fat-high sucrose diet NAFLD obese rat model. J Nutr Biochem 2017; 40:95-104. [DOI: 10.1016/j.jnutbio.2016.10.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 09/19/2016] [Accepted: 10/05/2016] [Indexed: 12/22/2022]
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33
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Pang D, You L, Zhou L, Li T, Zheng B, Liu RH. Averrhoa carambolafree phenolic extract ameliorates nonalcoholic hepatic steatosis by modulating mircoRNA-34a, mircoRNA-33 and AMPK pathways in leptin receptor-deficient db/db mice. Food Funct 2017; 8:4496-4507. [DOI: 10.1039/c7fo00833c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Averrhoa carambolafree phenolic extract ameliorates hepatic steatosis by modulating mircoRNA-34a, mircoRNA-33 and AMPK signaling.
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Affiliation(s)
- Daorui Pang
- School of Food Science and Engineering
- South China University of Technology
- Guangzhou
- People's Republic of China
| | - Lijun You
- School of Food Science and Engineering
- South China University of Technology
- Guangzhou
- People's Republic of China
| | - Lin Zhou
- School of Food Science and Engineering
- South China University of Technology
- Guangzhou
- People's Republic of China
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates
| | - Tong Li
- Department of Food Science
- Cornell University
- Ithaca
- USA
| | - Bisheng Zheng
- School of Food Science and Engineering
- South China University of Technology
- Guangzhou
- People's Republic of China
| | - Rui Hai Liu
- Department of Food Science
- Cornell University
- Ithaca
- USA
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34
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Smith C, Swart AC. Rooibos ( Aspalathus linearis ) facilitates an anti-inflammatory state, modulating IL-6 and IL-10 while not inhibiting the acute glucocorticoid response to a mild novel stressor in vivo. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.08.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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35
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Yao J, Cao X, Zhang R, Li YX, Xu ZL, Zhang DG, Wang LS, Wang JY. Protective Effect of Baicalin Against Experimental Colitis via Suppression of Oxidant Stress and Apoptosis. Pharmacogn Mag 2016; 12:225-34. [PMID: 27601854 PMCID: PMC4989799 DOI: 10.4103/0973-1296.186342] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background: Baicalin is a bioactive ingredient extracted from the root of Scutellariae radix, which is used to treat ulcerative colitis (UC). Objective: We investigated the activity of baicalin on lipopolysaccharide-stimulated RAW264.7 cells and 2,4,6-trinitrobenzene sulfonic acid-induced rats, including the attenuation of oxidant stress and apoptosis. Materials and Methods: The severity of colitis was assessed by disease activity index. The activities of catalase (CAT), glutathione peroxidase (GSH-PX), superoxide dismutase (SOD), and the content of malondialdehyde (MDA) were determined by their corresponding kits. The terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) was performed to study whether experimental colitis was associated with intestinal epithelial cell (IEC) apoptosis and the effect of baicalin on IEC apoptosis. Western blot analysis and immunocytochemistry assay were applied to determine the protein expressions. The reactive oxygen species (ROS) level in the colon of UC rats treated with baicalin was determined by ROS assay kit. Results: Baicalin remarkably upregulated the activities of CAT, GSH-PX, and SOD and decreased the content of MDA in a dose-dependent manner in vitro and in vivo. The TUNEL-positive cells in rats treated baicalin were remarkably reduced. Both Western blot analysis and immunocytochemistry assay indicated that baicalin significantly decreased the expressions of transforming growth factor beta-1, Bax protein and upregulated the expression of Bcl-2 protein. In addition, the expressions of total and cleaved caspase-3, total and cleaved caspase-9 protein, Fas, and FasL in vitro were downregulated by the treatment with baicalin. Baicalin of different doses reduced the generation of ROS in UC rats. Conclusion: Taken together, these evidences provide scientific basics for the application of baicalin in the treatment of UC and suggest that baicalin exerts its effect via suppression of oxidant stress and apoptosis. SUMMARY Baicalin remarkably upregulated the activities of catalase, glutathione peroxidase, and superoxide dismutase and decreased the content of MDA, both in vivo and in vitro The terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling-positive cells in rats treated baicalin remarkably reduced in a concentration-dependent manner Western blot analysis and immunocytochemistry assay indicated that baicalin significantly decreased the expressions of transforming growth factor beta-1, Bax protein, and upregulated the expression of Bcl-2 protein The expressions of total and cleaved caspase-3, total and cleaved caspase-9 protein, Fas, and FasL in vitro were downregulated by the treatment with baicalin.
Abbreviations used: UC: Ulcerative colitis, LPS: Lipopolysaccharide, TNBS: 2,4,6-trinitrobenzene sulfonic acid, DAI: Disease activity index, CAT: Catalase, GSH-PX: Glutathione peroxidase, SOD: Superoxide dismutase, MDA: Malondialdehyde, TUNEL: Terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling, ROS: Reactive oxygen species, IEC: Intestinal epithelial cell, SD: Sprague-Dawley, HE: H and E, DNTB: 5,5'-dithiobis-2-nitrobenzoic acid, TBA: Thiobarbituric acid, TBARS: Thiobarbituric acid-reactive substances, S.D: Standard deviation, and PBS: Phosphate-buffered saline.
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Affiliation(s)
- Jun Yao
- Department of Gastroenterology, Shenzhen genetic engineering Animal Center, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen 518020, China
| | - Xu Cao
- Department of Internal Medicine-Neurology, Shenzhen genetic engineering Animal Center, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen 518020, China
| | - Ru Zhang
- Department of Gastroenterology, Shenzhen genetic engineering Animal Center, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen 518020, China
| | - Ying-Xue Li
- Department of Gastroenterology, Shenzhen genetic engineering Animal Center, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen 518020, China
| | - Zheng-Lei Xu
- Department of Gastroenterology, Shenzhen genetic engineering Animal Center, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen 518020, China
| | - Ding-Guo Zhang
- Department of Gastroenterology, Shenzhen genetic engineering Animal Center, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen 518020, China
| | - Li-Sheng Wang
- Department of Gastroenterology, Shenzhen genetic engineering Animal Center, Jinan University of Medical Sciences, Shenzhen Municipal People's Hospital, Shenzhen 518020, China
| | - Jian-Yao Wang
- Department of General Surgery, Shenzhen Children's Hospital, Shenzhen 518026, Guangdong Province, China
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Xie W, Wang M, Chen C, Zhang X, Melzig MF. Hepatoprotective effect of isoquercitrin against acetaminophen-induced liver injury. Life Sci 2016; 152:180-9. [DOI: 10.1016/j.lfs.2016.04.002] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 03/22/2016] [Accepted: 04/01/2016] [Indexed: 01/27/2023]
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Orfali GDC, Duarte AC, Bonadio V, Martinez NP, de Araújo MEMB, Priviero FBM, Carvalho PO, Priolli DG. Review of anticancer mechanisms of isoquercitin. World J Clin Oncol 2016; 7:189-199. [PMID: 27081641 PMCID: PMC4826964 DOI: 10.5306/wjco.v7.i2.189] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 10/19/2015] [Accepted: 02/16/2016] [Indexed: 02/06/2023] Open
Abstract
This review was based on a literature search of PubMed and Scielo databases using the keywords “quercetin, rutin, isoquercitrin, isoquercitin (IQ), quercetin-3-glucoside, bioavailability, flavonols and favonoids, and cancer” and combinations of all the words. We collected relevant scientific publications from 1990 to 2015 about the absorption, bioavailability, chemoprevention activity, and treatment effects as well as the underlying anticancer mechanisms of isoquercitin. Flavonoids are a group of polyphenolic compounds widely distributed throughout the plant kingdom. The subclass of flavonols receives special attention owing to their health benefits. The main components of this class are quercetin, rutin, and IQ, which is a flavonoid and although mostly found as a glycoside, is an aglycone (lacks a glycoside side chain). This compound presents similar therapeutic profiles to quercetin but with superior bioavailability, resulting in increased efficacy compared to the aglycone form. IQ has therapeutic applications owing to its wide range of pharmacological effects including antioxidant, antiproliferative, anti-inflammatory, anti-hypertensive, and anti-diabetic. The protective effects of IQ in cancer may be due to actions on lipid peroxidation. In addition, the antitumor effect of IQ and its underlying mechanism are related to interactions with Wnt signaling pathway, mixed-lineage protein kinase 3, mitogen-activated protein kinase, apoptotic pathways, as well proinflammatory protein signaling. This review contributed to clarifying the mechanisms of absorption, metabolism, and actions of IQ and isoquercitrin in cancer.
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Lipid accumulation stimulates the cap-independent translation of SREBP-1a mRNA by promoting hnRNP A1 binding to its 5'-UTR in a cellular model of hepatic steatosis. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1861:471-81. [PMID: 26869449 DOI: 10.1016/j.bbalip.2016.02.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 02/03/2016] [Accepted: 02/06/2016] [Indexed: 12/14/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a chronic disease characterized by accumulation of lipid droplets in hepatocytes. Enhanced release of non-esterified fatty acids from adipose tissue accounts for a remarkable fraction of accumulated lipids. However, the de novo lipogenesis (DNL) is also implicated in the etiology of the NAFLD. Sterol Regulatory Element-Binding Protein-1 (SREBP-1) is a transcription factor modulating the expression of several lipogenic enzymes. In the present study, in order to investigate the effect of lipid droplet accumulation on DNL, we used a cellular model of steatosis represented by HepG2 cells cultured in a medium supplemented with free oleic and palmitic fatty acids (FFAs). We report that FFA supplementation induces the expression of genes coding for enzymes involved in the DNL as well as for the transcription factor SREBP-1a. The SREBP-1a mRNA translation, dependent on an internal ribosome entry site (IRES), and the SREBP-1a proteolytic cleavage are activated by FFAs. Furthermore, FFA treatment enhances the expression and the nucleus-cytosolic shuttling of hnRNP A1, a trans-activating factor of SREBP-1a IRES. The binding of hnRNP A1 to the SREBP-1a IRES is also increased upon FFA supplementation. The relocation of hnRNP A1 and the consequent increase of SREBP-1a translation are dependent on the p38 MAPK signal pathway, which is activated by FFAs. By RNA interference approach, we demonstrate that hnRNP A1 is implicated in the FFA-induced expression of SREBP-1a and of its target genes as well as in the lipid accumulation in cells.
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