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Maurotti S, Pujia R, Ferro Y, Mare R, Russo R, Coppola A, Gazzaruso C, Montalcini T, Pujia A, Paone S, Mollace V, Mazza E. A nutraceutical with Citrus bergamia and Cynara cardunculus improves endothelial function in adults with non-alcoholic fatty liver disease. Nutrition 2024; 118:112294. [PMID: 38042043 DOI: 10.1016/j.nut.2023.112294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 12/04/2023]
Abstract
OBJECTIVE Polyphenol intake may prevent hepatic steatosis and cardiovascular disease by potentially improving endothelial function. The purposes of this study are to investigate the association between fatty liver disease and endothelial dysfunction and to test the effects of a nutraceutical containing extracts made from Citrus bergamia and Cynara cardunculus on peripheral vascular endothelial function in adults with liver steatosis. METHODS We analyzed data from 32 individuals with hepatic steatosis and endothelial dysfunction (reactive hyperemia index ≤ 1.67). Sixteen subjects took 1 capsule/d (300 mg/d) containing Cynara cardunculus extract and bergamot polyphenol fraction, while the other 16 subjects matched for age, sex, and body mass index took 1 capsule/d of placebo (maltodextrin) for 12 wk. All anthropometric parameters were assessed at baseline and after 12 wk as were lipids, glucose, and reactive hyperemia index using an EndoPAT 2000. RESULTS The mean age was 52 ± 9 y. The mean reactive hyperemia index was 1.15 ± 0.4. After 12 wk, we found a greater increase in reactive hyperemia index in the participants taking the nutraceutical rather than placebo (0.58 ± 0.5 versus 0.13 ± 0.5; P = 0.02, respectively). The stepwise multivariable analysis confirmed a positive association between reactive hyperemia index change and the nutraceutical treatment (B = 0.38; P = 0.025) and negative association with reactive hyperemia index values at baseline (B = -0.81; P < 0.001). No association was found between the reduction in the amount of intrahepatic fat and the improvement of endothelial function (B = 0.002; P = 0.56). CONCLUSIONS A nutraceutical containing bergamot and artichoke extracts improves peripheral vascular endothelial function in adults with hepatic steatosis and early phase of atherosclerosis.
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Affiliation(s)
- Samantha Maurotti
- Department of Clinical and Experimental Medicine, Magna Græcia University of Catanzaro, Catanzaro, Italy
| | - Roberta Pujia
- Department of Medical and Surgical Sciences, Magna Græcia University of Catanzaro, Catanzaro, Italy
| | - Yvelise Ferro
- Department of Medical and Surgical Sciences, Magna Græcia University of Catanzaro, Catanzaro, Italy.
| | - Rosario Mare
- Department of Medical and Surgical Sciences, Magna Græcia University of Catanzaro, Catanzaro, Italy
| | - Raffaella Russo
- Department of Medical and Surgical Sciences, Magna Græcia University of Catanzaro, Catanzaro, Italy
| | - Adriana Coppola
- Diabetes and Endocrine-Metabolic Diseases Unit, Istituto Clinico Beato Matteo, Gruppo Ospedaliero San Donato, Vigevano, Italy
| | - Carmine Gazzaruso
- Diabetes and Endocrine-Metabolic Diseases Unit, Istituto Clinico Beato Matteo, Gruppo Ospedaliero San Donato, Vigevano, Italy; Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | - Tiziana Montalcini
- Department of Clinical and Experimental Medicine, Magna Græcia University of Catanzaro, Catanzaro, Italy; Research Center for the Prevention and Treatment of Metabolic Diseases (CR METDIS), Magna Græcia University of Catanzaro, Catanzaro, Italy
| | - Arturo Pujia
- Department of Medical and Surgical Sciences, Magna Græcia University of Catanzaro, Catanzaro, Italy; Research Center for the Prevention and Treatment of Metabolic Diseases (CR METDIS), Magna Græcia University of Catanzaro, Catanzaro, Italy
| | - Sara Paone
- Institute of Research for Food Safety & Health, Department of Health Sciences, Magna Græcia University of Catanzaro, Catanzaro, Italy
| | - Vincenzo Mollace
- Institute of Research for Food Safety & Health, Department of Health Sciences, Magna Græcia University of Catanzaro, Catanzaro, Italy
| | - Elisa Mazza
- Department of Medical and Surgical Sciences, Magna Græcia University of Catanzaro, Catanzaro, Italy
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2
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Shen S, Wang S, Yang C, Wang C, Zhou Q, Zhou S, Zhang R, Li Y, Wang Z, Dai L, Peng W, Hao Y, Guo H, Cao G, Liu X, Yao F, Xu Q, Fernie AR, Luo J. Elucidation of the melitidin biosynthesis pathway in pummelo. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:2505-2518. [PMID: 37675654 DOI: 10.1111/jipb.13564] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/06/2023] [Indexed: 09/08/2023]
Abstract
Specialized plant metabolism is a rich resource of compounds for drug discovery. The acylated flavonoid glycoside melitidin is being developed as an anti-cholesterol statin drug candidate, but its biosynthetic route in plants has not yet been fully characterized. Here, we describe the gene discovery and functional characterization of a new flavonoid gene cluster (UDP-glucuronosyltransferases (CgUGTs), 1,2 rhamnosyltransferase (Cg1,2RhaT), acyltransferases (CgATs)) that is responsible for melitidin biosynthesis in pummelo (Citrus grandis (L.) Osbeck). Population variation analysis indicated that the tailoring of acyltransferases, specific for bitter substrates, mainly determine the natural abundance of melitidin. Moreover, 3-hydroxy-3-methylglutaryl-CoA reductase enzyme inhibition assays showed that the product from this metabolic gene cluster, melitidin, may be an effective anti-cholesterol statin drug candidate. Co-expression of these clustered genes in Nicotiana benthamiana resulted in the formation of melitidin, demonstrating the potential for metabolic engineering of melitidin in a heterologous plant system. This study establishes a biosynthetic pathway for melitidin, which provides genetic resources for the breeding and genetic improvement of pummelo aimed at fortifying the content of biologically active metabolites.
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Affiliation(s)
- Shuangqian Shen
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Shouchuang Wang
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Chenkun Yang
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Chao Wang
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Qianqian Zhou
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Shen Zhou
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Ran Zhang
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Yufei Li
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Zixuan Wang
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Liupan Dai
- Hubei Hongshan Laboratory, College of Life Science and Technology, College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wenjv Peng
- National Key Laboratory of Crop Genetic Improvement, National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan, 430070, China
| | - Yingchen Hao
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Hao Guo
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Guangping Cao
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Xianqing Liu
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
| | - Fan Yao
- Hubei Hongshan Laboratory, College of Life Science and Technology, College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, China
| | - Qiang Xu
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, China
| | - Alisdair R Fernie
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
- Centre of Plant Systems Biology and Biotechnology, Plovdiv, 4000, Bulgaria
| | - Jie Luo
- Sanya Nanfan Research Institute of Hainan University, Hainan University, Sanya, 572025, China
- Yazhouwan National Laboratory, Sanya, 572025, China
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3
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Nasrollahi Z, ShahaniPour K, Monajemi R, Ahadi AM. Effect of quercetin and Abelmoschus esculentus (L.) Moench on lipids metabolism and blood glucose through AMPK-α in diabetic rats (HFD/STZ). J Food Biochem 2022; 46:e14506. [PMID: 36369969 DOI: 10.1111/jfbc.14506] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/06/2022] [Accepted: 10/21/2022] [Indexed: 11/15/2022]
Abstract
Phosphoenolpyruvate carboxykinase (PEPCK) is a key enzyme in the glyconeogenesis pathway. The AMP-activated protein kinase alpha (AMPK-α) pathway regulates PEPCK, which itself is activated by the AMP/ATP ratio and liver kinase B1 (KB1). The Abelmoschus esculentus (L.) Moench (okra) plant contains a large amount of quercetin that can function as an agonist or an antagonist. The aim of this study was to examine the effects of quercetin flavonoid and A. esculentus extract on the level of AMPK-α expression and associated metabolic pathways. The findings demonstrate that metformin, quercetin, and okra extract may significantly raise AMPK-α levels while significantly lowering PEPCK and hormone-sensitive lipase (HSL) levels, in addition to improving glucose and lipid profiles. By stimulating KB1, these substances increased AMPK-α activation. Additionally, AMPK-α activation improved insulin resistance and Glucose transporter type 4 (GLUT4) gene expression levels. Since AMPK-α maintains energy balance and its activity has not been reported to be inhibited so far, it could be a potent therapeutic target. PRACTICAL APPLICATIONS: The development of effective AMPK-α agonists and antagonists holds promise for the treatment of metabolic disorders like diabetes. Dietary polyphenols are a valuable source for developing new drugs. However, due to the lack of understanding of the underlying mechanisms of their effect on cells, their use in the treatment of diabetes is controversial. In addition to chemicals that have medicinal benefits, chemists are searching for less harmful substances. Using plants containing bioactive chemicals for this purpose can be a good alternative to chemical drugs.
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Affiliation(s)
- Zohreh Nasrollahi
- Department of Biochemistry, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Kahin ShahaniPour
- Department of Biochemistry, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Ramesh Monajemi
- Department of Biology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Ali Mohammad Ahadi
- Department of Genetics, Faculty of Science, Shahrekord University, Shahrekord, Iran
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Shanmugavadivu A, Balagangadharan K, Selvamurugan N. Angiogenic and Osteogenic Effects of Flavonoids in Bone Regeneration. Biotechnol Bioeng 2022; 119:2313-2330. [PMID: 35718883 DOI: 10.1002/bit.28162] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 06/14/2022] [Indexed: 11/10/2022]
Abstract
Bone is a highly vascularised tissue that relies on a close spatial and temporal interaction between blood vessels and bone cells. As a result, angiogenesis is critical for bone formation and healing. The vascular system supports bone regeneration by delivering oxygen, nutrients, and growth factors, as well as facilitating efficient cell-cell contact. Most clinical applications of engineered bone grafts are hampered by insufficient vascularization after implantation. Over the last decade, a number of flavonoids have been reported to have osteogenic-angiogenic potential in bone regeneration because of their excellent bioactivity, low cost, availability, and minimal in vivo toxicity. During new bone formation, the osteoinductive nature of certain flavonoids is involved in regulating multiple signaling pathways contributing toward the osteogenic-angiogenic coupling. This review briefly outlines the osteogenic-angiogenic potential of those flavonoids and the mechanisms of their action in promoting bone regeneration. However, further studies are needed to investigate their delivery strategies and establish their clinical efficacy. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Abinaya Shanmugavadivu
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
| | - K Balagangadharan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
| | - N Selvamurugan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
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5
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Arnaboldi L, Corsini A, Bellosta S. Artichoke and bergamot extracts: a new opportunity for the management of dyslipidemia and related risk factors. Minerva Med 2022; 113:141-157. [PMID: 35313442 DOI: 10.23736/s0026-4806.21.07950-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The relationship between low LDL-C (cholesterol associated with low-density lipoprotein) and a lower relative risk of developing cardiovascular disease (CVD) has been widely demonstrated. Although from a pharmacological point of view, statins, ezetimibe and PCSK inhibitors, alone or in combination are the front and center of the therapeutic approaches for reducing LDL-C and its CV consequences, in recent years nutraceuticals and functional foods have increasingly been considered as a valid support in the reduction of LDL-C, especially in patients with mild/moderate hyperlipidemia - therefore not requiring pharmacological treatment - or in patients intolerant to statins or other drugs. An approach also shared by the European Atherosclerosis Society (EAS). Of the various active ingredients with hypolipidemic properties, we include the artichoke (Cynara cardunculus, Cynara scolymus) and the bergamot (Citrus bergamia) which, thanks essentially to the significant presence of polyphenols in their extracts, can exert this action associated with a number of other complementary inflammation and oxidation benefits. In light of these evidence, this review aimed to describe the effects of artichoke and bergamot in modifying the lipid and inflammatory parameters described in in vitro, in vivo and clinical studies. The available data support the use of standardized compositions of artichoke and bergamot extracts, alone or in combination, in the treatment of mild to moderate dyslipidemia, in patients suffering from metabolic syndrome, hepatic steatosis, or intolerant to common hypolipidemic treatments.
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Visioli F, Poli A. Prevention and Treatment of Atherosclerosis: The Use of Nutraceuticals and Functional Foods. Handb Exp Pharmacol 2022; 270:271-285. [PMID: 31792678 DOI: 10.1007/164_2019_341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nutritional interventions are effective and - in theory - easy to implement primary and secondary prevention strategies that reduce several risk factors of atherosclerosis and cardiovascular disease (CVD). Yet, because of (a) the severe impact of CVD in terms of mortality, morbidity, quality of life, and economy, (b) the proved role of LDL plasma concentrations as the most critical risk factor, and (c) the obstacles found both in terms of biological effects and compliance of the patient by an exclusively dietary intervention, food supplements or nutraceuticals are now valuable resources for physicians. As regards cholesterol control, several preparations are available in the market, and we will critically review them in this chapter.
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Affiliation(s)
- Francesco Visioli
- Department of Molecular Medicine, University of Padova, Padua, Italy
- IMDEA-Food, CEI UAM+CSIC, Madrid, Spain
| | - Andrea Poli
- Nutrition Foundation of Italy, Milan, Italy.
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Hancke J, Srivastava S, Caceres DD, Burgos RA, Alarcon P. An exploratory double-blind, randomized, placebo-controlled study to assess the efficacy of CitruSlim on body composition and lipid parameters in obese individuals. Phytother Res 2021; 35:7039-7049. [PMID: 34794202 DOI: 10.1002/ptr.7331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 09/02/2021] [Accepted: 10/23/2021] [Indexed: 12/11/2022]
Abstract
The prevalence of obesity in developing and developed countries has been well recognized, and the worldwide obesity rates have nearly tripled since 1975, according to the World Health Organization. CitruSlim, a standardized product containing a blend of Citrus bergamia and Eurycoma longifolia, can reduce cortisol, cholesterol, triglycerides, and hyperglycemia. These properties can contribute to reduction in body weight or body mass index (BMI) in obese patients. A randomized, double-blind, placebo-controlled clinical study was designed to evaluate the efficacy and tolerability of CitruSlim in body weight management in obese individuals, and the results were compared with that of placebo. A total of 97 participants were allocated, randomized, and treated with CitruSlim high-dose (HD, 400 mg), CitruSlim low-dose (LD, 200 mg), and placebo for 112 days. At the end of the study, CitruSlim HD and CitruSlim LD significantly reduced BMI compared to the placebo group and were well tolerated; however, it did not improve parameters associated with dyslipidemia and metabolic disturbances. The study findings suggested that CitruSlim was effective in reducing body weight in obese patients.
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Affiliation(s)
- Juan Hancke
- Laboratory of Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | | | - Dante D Caceres
- Environmental Health Programme, School of Public Health, Faculty of Medicine, Universidad de Chile, Santiago, Chile.,Faculty of Health Sciences, University of Tarapacá, Arica, Chile
| | - Rafael A Burgos
- Laboratory of Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Pablo Alarcon
- Laboratory of Immunometabolism, Institute of Pharmacology and Morphophysiology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
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Duan JY, Chen W, Zhao YQ, He LL, Li EC, Bai ZH, Wang YJ, Zhang CP. Flavonoids from Hypericum patulum enhance glucose consumption and attenuate lipid accumulation in HepG2 cells. J Food Biochem 2021; 45:e13898. [PMID: 34378802 DOI: 10.1111/jfbc.13898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 07/05/2021] [Accepted: 08/01/2021] [Indexed: 12/16/2022]
Abstract
Hypericum patulum has been used as a folk medicine for its varied therapeutic effects including antifungal, wound-healing, spasmolytic, stimulant, hypotensive activities. The water decoction is drank as tea could treat cold, infantile malnutrition. The present study aims to isolate the constituents of the plant and investigate their effects on the glucose consumption in insulin-resistant HepG2 cells, furthermore, lipid metabolism in oleic acid (OA)-treated HepG2 cells was also studied. The phytochemical investigation of the plant led to the isolation of eleven compounds, and their structures were identified by spectroscopic analysis as n-dotriacontanol (1), shikimic acid (2), 1-O-caffeoylquinic acid methyl ester (3), 5-O-caffeoylquinic acid methyl ester (4), 5-O-coumaroylquinic acid methyl ester (5), 5-O-caffeoylquinic acid butyl ester (6), quercetin-3-O-α-L-rhamnoside (7), quercetin (8), quercetin-3-O-(4״-methoxy)-α-L-rahmnopyranosyl (9), hyperoside (10), and rutin (11). The results revealed that compounds 7, 9, and 10 could enhance glucose consumption significantly in hyperglycemia induced HepG2 cells and insulin-resistant HepG2 cells. In addition, the western blotting analysis result exhibited that compounds 7, 9, and 10 in high concentration (5 μM, H) group could dramatically upregulate the expression of PPARγ protein, and even the effect of them had no significant difference compared with that of rosiglitazone. Furthermore, compounds 9 and 10 in middle concentration (2.5 μM, M) group and H group could dramatically promote triglyceride metabolism and decrease TG content in OA-treated HepG2 cells, and even in H group, reactive oxygen species (ROS) level were significantly decreased compared with model group. PRACTICAL APPLICATIONS: Hypericum patulum is a well-known plant of the genera Hypericum for its varied preventive and therapeutic potential activities. To study the chemical constituents and their effects on glucose and lipid metabolism in vitro, we detected glucose consumption in insulin-resistant HepG2 cells, triglyceride content and reactive oxygen species level in OA-treated HepG2 cells. In addition, PPARγ protein was also detected by western blotting analysis in the study. Compounds 1, 2, 3, 5, 6, 9, 10, and 11 were isolated from the plant for the first time. Quercetin-3-O-(4"-methoxy)-α-L-rahmnopyranosyl (9) and hyperoside (10) had potential therapeutic benefit against glucose and lipid metabolic disease. Therefore, this study might have certain guiding significance for further research and development of H. patulum.
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Affiliation(s)
- Jing-Yu Duan
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Wei Chen
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Yang-Qi Zhao
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Liang-Liang He
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - En-Chao Li
- Jining First People's Hospital, Jining, China
| | - Zhong-Hui Bai
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Yong-Jian Wang
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Chun-Ping Zhang
- School of Pharmacy, Xuzhou Medical University, Xuzhou, China.,Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
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9
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Apigenin and Luteolin Regulate Autophagy by Targeting NRH-Quinone Oxidoreductase 2 in Liver Cells. Antioxidants (Basel) 2021; 10:antiox10050776. [PMID: 34068281 PMCID: PMC8153271 DOI: 10.3390/antiox10050776] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 12/15/2022] Open
Abstract
Dietary flavonoids stimulate autophagy and prevent liver dysfunction, but the upstream signaling pathways triggered by these compounds are not well understood. Certain polyphenols bind directly to NRH-quinone oxidoreductase 2 (NQO2) and inhibit its activity. NQO2 is highly expressed in the liver, where it participates in quinone metabolism, but recent evidence indicates that it may also play a role in the regulation of oxidative stress and autophagy. Here, we addressed a potential role of NQO2 in autophagy induction by flavonoids. The pro-autophagic activity of seven flavonoid aglycons correlated perfectly with their ability to inhibit NQO2 activity, and flavones such as apigenin and luteolin showed the strongest activity in all assays. The silencing of NQO2 strongly reduced flavone-induced autophagic flux, although it increased basal LC3-II levels in HepG2 cells. Both flavones induced AMP kinase (AMPK) activation, while its reduction by AMPK beta (PRKAB1) silencing inhibited flavone-induced autophagy. Interestingly, the depletion of NQO2 levels by siRNA increased the basal AMPK phosphorylation but abrogated its further increase by apigenin. Thus, NQO2 contributes to the negative regulation of AMPK activity and autophagy, while its targeting by flavones releases pro-autophagic signals. These findings imply that NQO2 works as a flavone receptor mediating autophagy and may contribute to other hepatic effects of flavonoids.
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10
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Huang M, Yang X, Wang Z, Long J, Wang A, Zhang Y, Yan D. Lipophagy: A New Perspective of Natural Products in Type 2 Diabetes Mellitus Treatment. Diabetes Metab Syndr Obes 2021; 14:2985-2999. [PMID: 34234495 PMCID: PMC8256822 DOI: 10.2147/dmso.s310166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 06/10/2021] [Indexed: 12/14/2022] Open
Abstract
Autophagy has been reported to involve in the pathogenesis of type 2 diabetes mellitus (T2DM), which protects the insulin target tissues and pancreatic β-cells. However, autophagy is inhibited when the cells are lipid overload. That, in turn, increases the accumulation of fat. Lipotoxicity caused by excessive lipid accumulation contributes to pathogenesis of T2DM. Therefore, it is undeniable to break the vicious circles between lipid excess and autophagy deficiency. Lipophagy, a selective form of autophagy, is characterized by selective breakdown of lipid droplets (LDs). The nutritional status of cells contributes to the way of autophagy (selective or non-selective), while selective autophagy helps to accurately remove excess substances. It seems that lipophagy could be an effective means to decrease abnormal lipid accumulation that leads to insulin resistance and β-cell impairment by removing ectopic LDs. Based on this process, many natural compounds have been reported to decrease lipid accumulation in tissues through autophagy-lysosomal pathway, which gradually highlights the significance of lipophagy. In this review, we focus on the mechanisms that lipophagy improves T2DM and natural products that are applied to induce lipophagy. It is also suggested that natural herbs with rich contents of natural products inducing lipophagy would be potential candidates for alleviating T2DM.
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Affiliation(s)
- Mingyue Huang
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611130, People’s Republic of China
- Beijing Key Laboratory of Bio-Characteristic Profiling for Evaluation of Rational Drug Use, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, People’s Republic of China
| | - Xinyu Yang
- Beijing Key Laboratory of Bio-Characteristic Profiling for Evaluation of Rational Drug Use, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, People’s Republic of China
| | - Zhenzhen Wang
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, People’s Republic of China
| | - Jianglan Long
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, People’s Republic of China
| | - Aiting Wang
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, People’s Republic of China
| | - Yi Zhang
- Department of Traditional Chinese Medicine and Natural Medicine, Chongqing Institute for Food and Drug Control, Chongqing, 401121, People’s Republic of China
- Yi Zhang Department of Traditional Chinese Medicine and Natural Medicine, Chongqing Institute for Food and Drug Control, No. 1, Chunlan 2nd Road, Yubei District, Chongqing, 401121, People’s Republic of ChinaTel +86 23-86072771 Email
| | - Dan Yan
- Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, People’s Republic of China
- Correspondence: Dan Yan Department of Pharmacy, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong’an Road, Xicheng District, Beijing, 100050, People’s Republic of ChinaTel +86 10-63139318 Email
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11
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Rondanelli M, Peroni G, Riva A, Petrangolini G, Allegrini P, Fazia T, Bernardinelli L, Naso M, Faliva MA, Tartara A, Gasparri C, Infantino V, Perna S. Bergamot phytosome improved visceral fat and plasma lipid profiles in overweight and obese class I subject with mild hypercholesterolemia: A randomized placebo controlled trial. Phytother Res 2020; 35:2045-2056. [PMID: 33188552 PMCID: PMC8246838 DOI: 10.1002/ptr.6950] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 10/27/2020] [Accepted: 10/30/2020] [Indexed: 12/22/2022]
Abstract
Bergamot has been traditionally used for the relief of diseases related to oxidative stress. Our aim was to investigate the effect of bergamot phytosome on visceral adipose tissue (VAT) and on metabolic profile, in overweight and obese subjects with mild hypercholesterolemia. A total of 64 participants were randomized into two groups for 12 weeks: a supplemented group (33 individuals, BMI 27 ± 3 kg/m2 receiving 500 mg of bergamot phytosome, two daily tablets) and placebo group (31 subjects, BMI 28 ± 3 kg/m2, two daily tablets). As to the within differences, the parameters of VAT, total and LDL‐cholesterol were significantly decreased in the bergamot phytosome group, but not in the placebo group. As to between‐group differences, a statistically significant interaction between time and group, that is, the change in score over time differs between the two groups was observed 30 days after supplementation for VAT (p‐value = .005), total cholesterol (p‐value <.0002), and LDL (p = .004) in respect to placebo. The other parameters (glucose, insulin, Homeostasis Model Assessment, high‐density lipoprotein cholesterol, triglycerides, fat free mass, fat mass) were not significant. In conclusion, this clinical study gives evidence that bergamot phytosome provides beneficial effects, such as decrease of VAT and modulation of metabolic alterations, after just 30 days of supplementation, resulting a very promising protection of cardiovascular health.
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Affiliation(s)
- Mariangela Rondanelli
- IRCCS Mondino Foundation, Pavia, Italy.,Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | - Gabriella Peroni
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia, Italy
| | - Antonella Riva
- Research and Development Department, Indena SpA, Milan, Italy
| | | | | | - Teresa Fazia
- Department of Brain and Behavioral Science, University of Pavia, Pavia, Italy
| | - Luisa Bernardinelli
- Department of Brain and Behavioral Science, University of Pavia, Pavia, Italy
| | - Maurizio Naso
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia, Italy
| | - Milena Anna Faliva
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia, Italy
| | - Alice Tartara
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia, Italy
| | - Clara Gasparri
- Endocrinology and Nutrition Unit, Azienda di Servizi alla Persona "Istituto Santa Margherita", University of Pavia, Pavia, Italy
| | - Vittoria Infantino
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | - Simone Perna
- Department of Biology, University of Bahrain, College of Science, Sakhir, Bahrain
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Kpemissi M, Potârniche AV, Lawson-Evi P, Metowogo K, Melila M, Dramane P, Taulescu M, Chandramohan V, Suhas DS, Puneeth TA, S VK, Vlase L, Andrei S, Eklu-Gadegbeku K, Sevastre B, Veerapur VP. Nephroprotective effect of Combretum micranthum G. Don in nicotinamide-streptozotocin induced diabetic nephropathy in rats: In-vivo and in-silico experiments. JOURNAL OF ETHNOPHARMACOLOGY 2020; 261:113133. [PMID: 32673708 DOI: 10.1016/j.jep.2020.113133] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 06/01/2020] [Accepted: 06/22/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Combretum micranthum G. Don (CM) is extensively used in traditional medicine throughout West Africa and commonly known as "long-life herbal tea" or "plant to heal". Further, traditional healers frequently use the title plant to mitigate of renal disorders. AIM OF THE STUDY To explore the nephroprotective property of standardised hydroalcoholic extract of Combretum micranthum in nicotinamide-streptozotocin induced diabetic nephropathy in rats. In addition, in-silico computational experiments were performed with bioactive compounds of the title plant against PPARα and PPARγ. MATERIAL AND METHODS Male rats were made diabetic by a single intraperitoneal (ip) injection of STZ (50 mg/kg), 15 min after ip administration of NA (100 mg/kg) dissolved in normal saline. The diabetic rats received CM extract (200 and 400 mg/kg p.o.) daily, for eight weeks. Body weights and blood glucose (non-fasting and fasting) of rats were measured weekly. Daily food and water consumption were also measured. After 8 weeks of treatment, urine biochemical parameters such as N-Acetyl-β-D-Glucosaminidase (NAG), urea (UR), uric acid (UA), creatinine (CRE), and serum markers of diabetes, kidney damage and liver damage such as insulin, lipid parameters), alanine aminotransferase (ALT), aspartate aminotransferase (AST) and gamma-glutamyl transferase (γGT), albumin (Alb), magnesium (Mg2+), calcium (Ca2+), phosphorus (P), were estimated. Blood glycosylated hemoglobin (HbA1C) were also estimated. kidney and liver were used for biochemical estimation of oxidative stress markers such as lipid peroxidation, superoxide dismutase (SOD) activity and glutathione peroxidase (GPx) activity. The kidney and pancreas were used for histopathological study. Further, HPLC chemoprofiling of CM extract and in-silico molecular simulation experiments were performed. RESULTS At the end of eight weeks, renal damage induced by the consequence of prolong diabetic condition was confirmed by altered levels of serum and urine kidney and liver function markers, oxidative stress markers and histopathological variations in kidney. Treatment with CM extract ameliorated the diabetes mellitus-induced renal biochemical parameters and histopathological changes. Further, HPLC-UV & MS experiments revealed that CM extract contains several bioactive compounds including hyperozide (62.35 μg/mg of extract) and quercitrin (19.07 μg/mg of extract). In-silico experiment exhibited cianidanol (-17.133), epicatechin (-15.107) exhibited higher docking score against PPARα and luteoforol (-11.038), epigallocatechin (-10.736) against PPARγ. Based on docking and drug likeness score, four bioactive compounds were selected for molecular dynamic experiments. Cianidanol and epigallocatechin out of the 30 compounds are concluded as a potential candidate for the treatment of DN through activating PPARα and PPARγ target protein. CONCLUSIONS Taken together, the present study provided the scientific footage for the traditional use of Combretum micranthum.
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Affiliation(s)
- Mabozou Kpemissi
- University of Lomé, Togo; University of Agricultural Science and Veterinary Medicine, Manastur Street. 3-5, 400372, Cluj-Napoca, Romania; Sree Siddaganga College of Pharmacy, B.H. Road, Tumkur, 572 102, Karnataka, India.
| | - Adrian-Valentin Potârniche
- University of Agricultural Science and Veterinary Medicine, Manastur Street. 3-5, 400372, Cluj-Napoca, Romania
| | | | | | | | - Pare Dramane
- University of Ouagadougou UFR/SVT, 09 BP 848, Ouagadougou 09, Burkina Faso
| | - Marian Taulescu
- University of Agricultural Science and Veterinary Medicine, Manastur Street. 3-5, 400372, Cluj-Napoca, Romania
| | - Vivek Chandramohan
- Department of Biotechnology, Siddaganga Institute of Technology, Tumkur, 572103, Karnataka, India
| | | | | | - Vijaya Kumar S
- Sree Siddaganga College of Pharmacy, B.H. Road, Tumkur, 572 102, Karnataka, India
| | - Laurian Vlase
- University of Medicine and Pharmacy "Iuliu Hateganu", Emil Isaac Street 13, 400023, Cluj-Napoca, Romania
| | - Sanda Andrei
- University of Agricultural Science and Veterinary Medicine, Manastur Street. 3-5, 400372, Cluj-Napoca, Romania
| | | | - Bogdan Sevastre
- University of Agricultural Science and Veterinary Medicine, Manastur Street. 3-5, 400372, Cluj-Napoca, Romania
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Evaluation of Antidiabetic Activity of the Leaf Latex of Aloe pulcherrima Gilbert and Sebsebe (Aloaceae). EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:8899743. [PMID: 33082833 PMCID: PMC7556076 DOI: 10.1155/2020/8899743] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/15/2020] [Accepted: 09/19/2020] [Indexed: 11/21/2022]
Abstract
The leaf latex of Aloe pulcherrima has been used as remedy for diabetes mellitus. This was carried out to determine in vitro and in vivo antidiabetic activities of the leaf latex of Aloe pulcherrima. Methods. Sucrase and maltase inhibitory activity of the leaf latex of A. pulcherrima was determined in glucose oxidase assay, and α-amylase inhibitory activity was determined in dinitrosalicylic acid assay. Normoglycemic, glucose-loaded, and streptozotocin-induced diabetic mice were treated orally to determine blood glucose lowering activity of the latex. Effect of the latex on serum lipid level and body weight was measured in streptozotocin-induced diabetic mice. Additionally, DPPH assay was used to determine free radical scavenging capacity of the latex. Results. Antioxidant activity of the latex was concentration dependent; the strongest inhibition was measured at 800 μg/ml (80.57%). The leaf latex of A. pulcherrima inhibited sucrase (IC50 = 2.92 μg/ml), maltase (IC50 = 11.81 μg/ml) and α-amylase (IC50 = 14.92 μg/ml) enzymes. All doses of the leaf latex induced hypoglycemic effect after 4 h in normal mice, and low dose of the latex did not show significant effect after 6 h. Glucose reduction of the leaf latex of A. pulcherrima was significant (p < 0.05) in oral glucose-loaded mice compared to the vehicle control. Blood glucose level of diabetic mice was significantly (p < 0.05) reduced on week one and weak two in a streptozotocin-induced diabetic mouse model. Glucose reduction increased with increasing the doses of the leaf latex of A. pulcherrima on week one (p < 0.05 (200 mg/kg), p < 0.01 (400 mg/kg), and p < 0.001 (600 mg/kg)). Administration of the leaf latex of A. pulcherrima for two weeks significantly (p < 0.05) improved diabetic dyslipidemia and body weight of diabetic mice. Conclusion. The study confirmed that the leaf latex of the plant showed a significant antidiabetic activity justifying the traditional uses of the plant.
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14
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Mare R, Mazza E, Ferro Y, Gliozzi M, Nucera S, Paone S, Aversa I, Pujia R, Marafioti G, Musolino V, Mollace V, Montalcini T, Pujia A. A new breakfast brioche containing bergamot fiber prevents insulin and glucose increase in healthy volunteers: a pilot study. Minerva Endocrinol (Torino) 2020; 46:214-225. [PMID: 32969628 DOI: 10.23736/s2724-6507.20.03243-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Despite the abundance of studies on the beneficial effects of a fiber rich diet as well as polyphenols deriving from Citrus fruits on postprandial serum glucose and insulin, clinical evidence on their synergic effects on healthy subjects have never been published. We aimed to investigate the feasibility of a new dietary approach in controlling glucose and insulin response at breakfast time by testing a brioche enriched with wheat bran and bergamot fiber. METHODS We enrolled 11 healthy volunteers in a cross-over study. Participants consumed a classic brioche at breakfast and our functional brioche, containing wheat bran and bergamot fiber, on another day. Vital functions, biochemical parameters (including glucose and insulin), anthropometric measurements as well as resting energy expenditure and fat oxidation were evaluated before and after the intake of both meals. RESULTS The mean age was ~25 years. The mean BMI was 23.5 kg/m2. The consumption of the functional brioche reduced the glucose C<inf>max(0-120 min)</inf> by ~6% and prevented the insulin increase over time by 30%, finally demonstrating insulin C<inf>max(0-120 min)</inf> and iAUC<inf>(0-120 min)</inf> values significantly lower compared to classic brioche (respectively P value =0.04 and 0.03). The stepwise multivariable analysis confirmed the association between the consumption of the functional brioche containing bran and bergamot fiber and glucose C<inf>max(0-120 min)</inf> (B=-0.45; P=0.034), and insulin iAUC<inf>(0-120 min)</inf> (B=-764 P=0.036). CONCLUSIONS The association of wheat bran and bergamot fiber significantly influences glucose metabolism and may exert insulin-like effects on healthy volunteers. If confirmed, berga-brioche would be a useful tool in preventing diabetes and controlling the glycometabolic status of type 2 diabetic patients.
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Affiliation(s)
- Rosario Mare
- Department of Medical and Surgical Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Elisa Mazza
- Department of Medical and Surgical Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Yvelise Ferro
- Department of Health Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Micaela Gliozzi
- Department of Health Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Saverio Nucera
- Department of Health Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Sara Paone
- Department of Health Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Ilenia Aversa
- Unit of Nutrition, Department of Clinical and Experimental Medicine, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Roberta Pujia
- Department of Medical and Surgical Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Giuseppe Marafioti
- Department of Medical and Surgical Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Vincenzo Musolino
- Department of Health Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Vincenzo Mollace
- Department of Health Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
| | - Tiziana Montalcini
- Unit of Nutrition, Department of Clinical and Experimental Medicine, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy -
| | - Arturo Pujia
- Department of Medical and Surgical Sciences, Campus of Germaneto, Magna Græcia University, Catanzaro, Italy
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15
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Cherie Melaku B, Amare GG. Evaluation of Antidiabetic and Antioxidant Potential of Hydromethanolic Seed Extract of Datura stramonium Linn (Solanaceae). J Exp Pharmacol 2020; 12:181-189. [PMID: 32607008 PMCID: PMC7319525 DOI: 10.2147/jep.s258522] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 06/09/2020] [Indexed: 12/26/2022] Open
Abstract
Background Nature has gifted a variety of phytochemicals having a potential effect against diabetes mellitus. Datura stramonium has been used as a remedy for the treatment of diabetes mellitus. The study aimed to determine the in vivo antidiabetic potential of hydromethanolic seed extract of the plant. Methods Dried seeds of Datura stramonium were macerated in hydromethanol. Three doses (100, 200, and 400 mg/kg) of the seed extract were given orally to normoglycemic, glucose-loaded, and Streptozocin-induced diabetic mice. Diphenyl-1-picrylhydrazine (DPPH) assay was employed to determine antioxidant activity of the seed extract. Results All doses of hydromethanolic seed extract of D. stramonium were devoid of any significant hypoglycemic effect in normoglycemic mice compared to the negative control group. Acute glucose reduction was significant (P<0.05 at 100, P<0.01 at 200 and 400 mg/kg) with respect to negative control in oral glucose-loaded mice. All doses of seed extract significantly (P<0.0l) reduced blood glucose level on weeks 1 and 2 in STZ-induced daily-treated diabetic mice. The seed extract at the doses of 200 and 400 mg/kg significantly (P<0.05) improved the body weight of diabetic mice on weeks 1 and 2. A low (100 mg/kg) dose of the seed extract delayed and significantly (P<0.05) increased body weight of mice on week 2 compared to negative control. The finding showed that the antioxidant activity of the hydromethanolic seed extract was concentration dependent and comparable with ascorbic acid. IC50 of the seed extract and ascorbic acid was found to be 11.95 and 5.07 mg/mL, respectively. Conclusion The findings of the study showed that hydromethanolic seed extract of Datura stramonium endowed significant antihyperglycemic and antioxidant activity.
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Affiliation(s)
- Bamlaku Cherie Melaku
- Department of Pharmacy, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Gedefaw Getnet Amare
- Department of Pharmacy, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
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16
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Musolino V, Gliozzi M, Bombardelli E, Nucera S, Carresi C, Maiuolo J, Mollace R, Paone S, Bosco F, Scarano F, Scicchitano M, Macrì R, Ruga S, Zito MC, Palma E, Gratteri S, Ragusa M, Volterrani M, Fini M, Mollace V. The synergistic effect of Citrus bergamia and Cynara cardunculus extracts on vascular inflammation and oxidative stress in non-alcoholic fatty liver disease. J Tradit Complement Med 2020; 10:268-274. [PMID: 32670822 PMCID: PMC7340872 DOI: 10.1016/j.jtcme.2020.02.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND AND AIM Non-Alcoholic Fatty Liver Disease (NAFLD) represents a risk factor for cardiovascular diseases. NAFLD is worsened by the simultaneous occurrence of type 2 diabetes mellitus (T2DM) causing an enhancement of inflammatory and fibrotic processes. Although insulin resistance appears the link between NAFLD and T2DM, current pharmacological treatments of T2DM failed to produce relevant benefits in preventing T2DM-related liver dysfunction. In this randomized, double blind, placebo-controlled clinical study, we evaluated the effect of Bergacyn, an innovative formulation originating from the combination of Bergamot Polyphenolic Fraction (BPF) and Cynara cardunculus (CyC). EXPERIMENTAL PROCEDURE 80 adult patients with a history of at least 12 months of T2DM and NAFLD received orally BPF (300 mg/daily) Cyc (300 mg/daily), separately or formulated in combination 50/50% (Bergacyn; 300 mg/daily), or placebo all containing 300 mg of bergamot albedo fibers micronized and co-grinded as excipients. RESULTS AND CONCLUSION Serum measurements and liver ultrasound analyses showed that concomitant administration of BPF and CyC produced significant improvement of NAFLD biomarkers in patients with T2DM. This effect was associated with a substantial reduction of oxidative stress/inflammatory biomarkers, thus contributing to a significant improvement of NO-mediated reactive vasodilation. Furthermore, the effect of Bergacyn showed a synergistic effect of both extracts, thus suggesting that this peculiar formulation represents a novel therapeutic strategy to counteract vascular inflammation and endothelial dysfunction in patients suffering from T2DM and NAFLD. Further studies in larger cohort of diabetic patients are required to better identify the potential of Bergacyn on metabolic disorders accompanying T2DM and NAFLD.
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Affiliation(s)
- Vincenzo Musolino
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Micaela Gliozzi
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Ezio Bombardelli
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Saverio Nucera
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Cristina Carresi
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Jessica Maiuolo
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Rocco Mollace
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Sara Paone
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Francesca Bosco
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Federica Scarano
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Miriam Scicchitano
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Roberta Macrì
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Stefano Ruga
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Maria Caterina Zito
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Ernesto Palma
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Santo Gratteri
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | - Monica Ragusa
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
| | | | | | - Vincenzo Mollace
- Institute of Research for Food Safety & Health, Department of Health Sciences, University “Magna Graecia” of Catanzaro, Nutramed Scarl and, Italy
- San Raffaele IRCCS, Rome, Italy
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Krongyut O, Sutthanut K. Phenolic Profile, Antioxidant Activity, and Anti-obesogenic Bioactivity of Mao Luang Fruits ( Antidesma bunius L.). Molecules 2019; 24:E4109. [PMID: 31739440 PMCID: PMC6891370 DOI: 10.3390/molecules24224109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 12/19/2022] Open
Abstract
To investigate the anti-obesity potential of Antidesma bunius L. (MM), a Thai local fruit which is named "Mao Luang," we have focused on the effects on pancreatic α-amylase and lipase enzyme activity and on adipocyte life cycle using the 3T3-L1 cell line as a model. In addition, the phytochemical composition and anti-oxidation potential were also analyzed using HPLC-PDA UV and colorimetric methods. The ethanolic extract of MM fruits prepared by a maceration method was used in the experiments. MM extract, yield 12.08% w/w, is composed primarily of phenolics and anthocyanins as the major phytochemicals, among which, gallic acid, catechin, anthocyanin-3-glucoside, and protocatechuic acid were initially identified. In addition, susceptibly inhibitory effects on oxidation in a DPPH assay; on lipase enzyme activity rather than amylase enzyme; and on adipocyte adipogenesis of MM were demonstrated. Interestingly, a concentration-dependent bi-modular manner of activity on adipocyte adipogenesis was discovered, whereby a significant anti-adipogenic effect was demonstrated at high concentration, whilst low concentrations of MM showed adipogenic induction. Lipolytic induction was manifested. Conclusively, the ethanolic MM extract was discovered to be a potential anti-obesity agent contributed by inhibitory effects on lipase enzyme and anti-differentiation and -adipogenesis in adipocytes which significantly correlated to the total phenolics content, as well as anti-oxidation as the mechanism of action. Nevertheless, to achieve effective application, further investigation in in vivo models should be considered.
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Affiliation(s)
- Ornnicha Krongyut
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand;
- Human High Performance & Health Promotion Research Institute: HHP&HP Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Khaetthareeya Sutthanut
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand;
- Human High Performance & Health Promotion Research Institute: HHP&HP Research Institute, Khon Kaen University, Khon Kaen 40002, Thailand
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18
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Musolino V, Gliozzi M, Nucera S, Carresi C, Maiuolo J, Mollace R, Paone S, Bosco F, Scarano F, Scicchitano M, Ruga S, Zito MC, Colica C, Macrì R, Palma E, Ragusa S, Muscoli C, Mollace V. The effect of bergamot polyphenolic fraction on lipid transfer protein system and vascular oxidative stress in a rat model of hyperlipemia. Lipids Health Dis 2019; 18:115. [PMID: 31101130 PMCID: PMC6525455 DOI: 10.1186/s12944-019-1061-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 04/29/2019] [Indexed: 11/25/2022] Open
Abstract
Background Experimental and epidemiological studies show that bergamot polyphenolic fraction (BPF) ameliorates the serum lipemic profile, normalizes blood pressure and improves non alcoholic fatty liver disease in patients suffering from metabolic syndrome. Despite this evidence, the molecular mechanisms responsible for these beneficial effects remain unclear. The aim of our study is to clarify the effects of BPF on the lipoprotein assembly and to identify oxidative stress biomarkers correlating hyperlipidaemia and BPF-induced metabolic changes. Methods Male Wistar rats (180–200 g) were randomly assigned to receive a standard diet, a hypercholesterolemic diet or a hypercholesterolemic diet+BPF (20 mg/Kg/rat daily, gavage), respectively, for 90 days. Total cholesterol (tChol), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), triglycerides (TG) and fasting plasma glucose were evaluated at the baseline as well as at the end of the treatment. To assess the effect of BPF on the Lipid Transfer Protein System, detection of ACAT, LCAT, CETP, PON1, Apo A1 and Apo B have also been carried out. Finally, the lipid peroxidation biomarker (TBARS) and oxyLDL were also measured. Results BPF prevented tChol, LDL-C, TG and fasting plasma glucose enhancement and improved HDL-C. Treatment of hyperlipæmic rats with BPF significantly restored altered the serum concentration of lipemic biomarkers and the activity of ACAT, LCAT, CETP and PON1, an effect accompanied by the concomitant normalization of Apo A1 and APO B levels. In addition, TBARS levels were reduced significantly by the treatment with BPF. Conclusions BPF prevents diet-induced alteration of the lipid profile in rats, counteracting oxidative stress and improving the dysregulation of the Lipid Transfer Protein System. These data add new insights into the molecular mechanisms underlying the beneficial role of BPF in the therapy of hyperlipidaemia, thus suggesting a novel approach in the prevention of cardiovascular disease.
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Affiliation(s)
- Vincenzo Musolino
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy. .,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy.
| | - Micaela Gliozzi
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Saverio Nucera
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Cristina Carresi
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Jessica Maiuolo
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Rocco Mollace
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Sara Paone
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Francesca Bosco
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Federica Scarano
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Miriam Scicchitano
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Stefano Ruga
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Maria Caterina Zito
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Carmen Colica
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Roberta Macrì
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Ernesto Palma
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,Nutramed S.c.a.r.l., Complesso Ninì Barbieri, 88021, Roccelletta di Borgia, Catanzaro, Italy
| | - Salvatore Ragusa
- Department of Health Sciences, University "Magna Graecia" of Catanzaro, Catanzaro, Italy
| | - Carolina Muscoli
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy.,San Raffaele IRCCS Pisana, Rome, Italy
| | - Vincenzo Mollace
- Institute of Research for Food Safety & Health (IRC-FSH), Department of Health Sciences, University "Magna Graecia" of Catanzaro, Viale Europa, Loc. Germaneto, 88100, Catanzaro, Italy. .,San Raffaele IRCCS Pisana, Rome, Italy.
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19
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La Russa D, Giordano F, Marrone A, Parafati M, Janda E, Pellegrino D. Oxidative Imbalance and Kidney Damage in Cafeteria Diet-Induced Rat Model of Metabolic Syndrome: Effect of Bergamot Polyphenolic Fraction. Antioxidants (Basel) 2019; 8:antiox8030066. [PMID: 30884780 PMCID: PMC6466566 DOI: 10.3390/antiox8030066] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/01/2019] [Accepted: 03/12/2019] [Indexed: 12/17/2022] Open
Abstract
Obesity is a potent risk factor for kidney disease as it increases the possibility of developing diabetes and hypertension, and it has a direct impact on the development of chronic kidney disease and end-stage renal disease. In this study, we tested the effect of bergamot polyphenolic fraction in a cafeteria with diet-fed rats, an excellent experimental model for studying human metabolic syndrome, as it is able to induce severe obesity with insulin resistance and high plasma triglyceride levels more efficiently than a traditional lard-based high-fat diet used in rodent models. We analyzed the plasmatic oxidative balance by photometric tests, and the expression of cytoplasmic antioxidant enzymes (superoxide dismutase 1 and glutatione S-tranferasi P1) and apoptotic markers (Caspase 8 and 9) in kidney tissues by Western blot analysis. Our results clearly showed that the cafeteria diet induces a marked pro-oxidant effect: significant reduction of plasmatic antioxidant capacity; downregulation of cytoplasmic antioxidant enzymes expression; and activation of apoptotic pathways. All these hallmarks of redox disequilibrium were mitigated by treatment with polyphenolic fraction of bergamot, highlighting its antioxidant effect in the metabolic syndrome. Our data show that the link between obesity and renal damage could be represented by oxidative stress.
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Affiliation(s)
- Daniele La Russa
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy.
- LARSO (Analysis and Research on Oxidative Stress Laboratory), University of Calabria, 87036 Rende, Italy.
| | - Francesca Giordano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy.
| | - Alessandro Marrone
- LARSO (Analysis and Research on Oxidative Stress Laboratory), University of Calabria, 87036 Rende, Italy.
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy.
| | - Maddalena Parafati
- Department of Health Sciences, Univ. "Magna Graecia" (Campus Germaneto), 88100 Catanzaro, Italy.
| | - Elzbieta Janda
- Department of Health Sciences, Univ. "Magna Graecia" (Campus Germaneto), 88100 Catanzaro, Italy.
| | - Daniela Pellegrino
- LARSO (Analysis and Research on Oxidative Stress Laboratory), University of Calabria, 87036 Rende, Italy.
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy.
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20
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Adrar NS, Madani K, Adrar S. Impact of the inhibition of proteins activities and the chemical aspect of polyphenols-proteins interactions. PHARMANUTRITION 2019. [DOI: 10.1016/j.phanu.2019.100142] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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21
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Parafati M, Lascala A, La Russa D, Mignogna C, Trimboli F, Morittu VM, Riillo C, Macirella R, Mollace V, Brunelli E, Janda E. Bergamot Polyphenols Boost Therapeutic Effects of the Diet on Non-Alcoholic Steatohepatitis (NASH) Induced by "Junk Food": Evidence for Anti-Inflammatory Activity. Nutrients 2018; 10:nu10111604. [PMID: 30388763 PMCID: PMC6267059 DOI: 10.3390/nu10111604] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/17/2018] [Accepted: 10/25/2018] [Indexed: 01/08/2023] Open
Abstract
Wrong alimentary behaviors and so-called “junk food” are a driving force for the rising incidence of non-alcoholic fatty liver disease (NAFLD) among children and adults. The “junk food” toxicity can be studied in “cafeteria” (CAF) diet animal model. Young rats exposed to CAF diet become obese and rapidly develop NAFLD. We have previously showed that bergamot (Citrus bergamia Risso et Poiteau) flavonoids, in the form of bergamot polyphenol fraction (BPF), effectively prevent CAF diet-induced NAFLD in rats. Here, we addressed if BPF can accelerate therapeutic effects of weight loss induced by a normocaloric standard chow (SC) diet. 21 rats fed with CAF diet for 16 weeks to induce NAFLD with inflammatory features (NASH) were divided into three groups. Two groups were switched to SC diet supplemented or not with BPF (CAF/SC±BPF), while one group continued with CAF diet (CAF/CAF) for 10 weeks. BPF had no effect on SC diet-induced weight loss, but it accelerated hepatic lipid droplets clearance and reduced blood triglycerides. Accordingly, BPF improved insulin sensitivity, but had little effect on leptin levels. Interestingly, the inflammatory parameters were still elevated in CAF/SC livers compared to CAF/CAF group after 10 weeks of dietary intervention, despite over 90% hepatic fat reduction. In contrast, BPF supplementation decreased hepatic inflammation by reducing interleukin 6 (Il6) mRNA expression and increasing anti-inflammatory Il10, which correlated with fewer Kupffer cells and lower inflammatory foci score in CAF/SC+BPF livers compared to CAF/SC group. These data indicate that BPF mediates a specific anti-inflammatory activity in livers recovering from NASH, while it boosts lipid-lowering and anti-diabetic effects of the dietary intervention.
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Affiliation(s)
- Maddalena Parafati
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, 88100 Catanzaro, Italy.
- Interregional Research Center for Food Safety and Health, 88100 Catanzaro, Italy.
| | - Antonella Lascala
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, 88100 Catanzaro, Italy.
- Interregional Research Center for Food Safety and Health, 88100 Catanzaro, Italy.
| | - Daniele La Russa
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, 88100 Catanzaro, Italy.
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende (CS), Italy.
| | - Chiara Mignogna
- Department of Experimental and Clinical Medicine, Magna Graecia University, Campus Germaneto, 88100 Catanzaro, Italy.
| | - Francesca Trimboli
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, 88100 Catanzaro, Italy.
| | - Valeria Maria Morittu
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, 88100 Catanzaro, Italy.
| | - Concetta Riillo
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, 88100 Catanzaro, Italy.
| | - Rachele Macirella
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende (CS), Italy.
| | - Vincenzo Mollace
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, 88100 Catanzaro, Italy.
- Interregional Research Center for Food Safety and Health, 88100 Catanzaro, Italy.
| | - Elvira Brunelli
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende (CS), Italy.
| | - Elzbieta Janda
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, 88100 Catanzaro, Italy.
- Interregional Research Center for Food Safety and Health, 88100 Catanzaro, Italy.
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22
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Ruby-Figueroa R, Conidi C, Di Donna L, Cassano A. Recovery of bruteridin and melitidin from clarified bergamot juice by membrane operations. J FOOD PROCESS ENG 2018. [DOI: 10.1111/jfpe.12870] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- René Ruby-Figueroa
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación; Universidad Tecnológica Metropolitana; Santiago Chile
| | - Carmela Conidi
- Institute on Membrane Technology; ITM-CNR, c/o University of Calabria via P. Bucci; Rende Italy
| | - Leonardo Di Donna
- Department of Chemistry and Chemical Technologies; University of Calabria; Rende Italy
| | - Alfredo Cassano
- Institute on Membrane Technology; ITM-CNR, c/o University of Calabria via P. Bucci; Rende Italy
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23
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Poli A, Barbagallo CM, Cicero AF, Corsini A, Manzato E, Trimarco B, Bernini F, Visioli F, Bianchi A, Canzone G, Crescini C, de Kreutzenberg S, Ferrara N, Gambacciani M, Ghiselli A, Lubrano C, Marelli G, Marrocco W, Montemurro V, Parretti D, Pedretti R, Perticone F, Stella R, Marangoni F. Nutraceuticals and functional foods for the control of plasma cholesterol levels. An intersociety position paper. Pharmacol Res 2018; 134:51-60. [DOI: 10.1016/j.phrs.2018.05.015] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 05/29/2018] [Indexed: 12/14/2022]
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24
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Qualitative and quantitative analysis of the proautophagic activity of Citrus flavonoids from Bergamot Polyphenol Fraction. Data Brief 2018; 19:1327-1334. [PMID: 30229008 PMCID: PMC6140830 DOI: 10.1016/j.dib.2018.05.139] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 05/15/2018] [Accepted: 05/28/2018] [Indexed: 12/18/2022] Open
Abstract
Bergamot Polyphenol Fraction (BPF®) is a natural mixture of Citrus flavonoids extracted from processed bergamot fruits. It has been shown to counteract cardiovascular risk factors and to prevent liver steatosis in rats and patients. Hepatic effects of BPF correlate with its ability to stimulate liver autophagy. Six aglyconic flavonoids have been identified in the proautophagic fraction of the hydrolysis product of BPF (A-BPF): naringenin, hesperetin, eridictyol, diosmetin, apigenin and luteolin. We report here the output parameters of high resolution mass spectrometry analysis of these flavonoids and chemical structures of their parent compounds. The second set of data shows the proautophagic activity of BPF flavonoids in a hepatic cell line HepG2 analyzed by a flow cytometry approach. The method is based on the red to green fluorescence intensity ratio analysis of DsRed -LC3- GFP, which is stably expressed in HepG2 cells. Proportional analysis of ATG indexes allowed us to address a relative contribution of individual compounds to the proautophagic activity of the A-BPF mixture and evaluate if the effect was additive. Qualitative analysis of ATG indexes compared the effects of flavonoids at equal concentrations in the presence and absence of palmitic acid and chloroquine. The Excel files reporting the analysis of flow cytometry data are available in the public repository.
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25
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Bioinspired bone therapies using naringin: applications and advances. Drug Discov Today 2018; 23:1293-1304. [PMID: 29747006 DOI: 10.1016/j.drudis.2018.05.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/31/2018] [Accepted: 05/02/2018] [Indexed: 12/26/2022]
Abstract
The use of natural compounds for treating chronic bone diseases holds remarkable potential. Among these therapeutics, naringin, a flavanone glycoside, represents one of the most promising candidates owing to its multifaceted effect on bone tissues. This review provides an up-to-date overview on naringin applications in the treatment of bone disorders, such as osteoporosis and osteoarthritis, and further highlights its potential for stem cell pro-osteogenic differentiation therapies. A critical perspective on naringin clinical translation is also provided. The topic is discussed in light of recently developed biomaterial-based approaches that potentiate its bioavailability and bioactivity. Overall, the reported pro-osteogenic, antiresorptive and antiadipogenic properties establish this flavanone as an exciting candidate for application in bone tissue engineering and regenerative medicine.
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26
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Lascala A, Martino C, Parafati M, Salerno R, Oliverio M, Pellegrino D, Mollace V, Janda E. Analysis of proautophagic activities of Citrus flavonoids in liver cells reveals the superiority of a natural polyphenol mixture over pure flavones. J Nutr Biochem 2018; 58:119-130. [PMID: 29890411 DOI: 10.1016/j.jnutbio.2018.04.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 03/21/2018] [Accepted: 04/17/2018] [Indexed: 12/19/2022]
Abstract
Autophagy dysfunction has been implicated in the pathogenesis of nonalcoholic fatty liver disease (NAFLD). Natural compounds present in bergamot polyphenol fraction (BPF) prevent NAFLD and induce autophagy in rat livers. Here, we employed HepG2 cells expressing DsRed-LC3-GFP, a highly sensitive model system to screen for proautophagic compounds present in BPF. BPF induced autophagy in a time- and dose-dependent fashion and the effect was amplified in cells loaded with palmitic acid. Autophagy was mediated by the hydrophobic fraction of acid-hydrolyzed BPF (A-BPF), containing six flavanone and flavone aglycones as identified by liquid chromatography-high-resolution mass spectrometry. Among them, naringenin, hesperitin, eriodictyol and diosmetin were weak inducers of autophagy. Apigenin showed the strongest and dose-dependent proautophagic activity at early time points (6 h). Luteolin induced a biphasic autophagic response, strong at low doses and inhibitory at higher doses. Both flavones were toxic in HepG2 cells and in differentiated human liver progenitors HepaRG upon longer treatments (24 h). In contrast, BPF and A-BPF did not show any toxicity, but induced a persistent increase in autophagic flux. A mixture of six synthetic aglycones mimicking A-BPF was sufficient to induce a similar autophagic response, but it was mildly cytotoxic. Thus, while six main BPF flavonoids fully account for its proautophagic activity, their combined effect is not sufficient to abrogate cytotoxicity of individual compounds. This suggests that a natural polyphenol phytocomplex, such as BPF, is a safer and more effective strategy for the treatment of NAFLD than the use of pure flavonoids.
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Affiliation(s)
- Antonella Lascala
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, Catanzaro, Italy
| | - Concetta Martino
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, Catanzaro, Italy
| | - Maddalena Parafati
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, Catanzaro, Italy; Interregional Research Center for Food Safety and Health, Catanzaro, Italy
| | - Raffaele Salerno
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, Catanzaro, Italy; Interregional Research Center for Food Safety and Health, Catanzaro, Italy
| | - Manuela Oliverio
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, Catanzaro, Italy
| | - Daniela Pellegrino
- Department of Biology, Ecology and Earth Sciences, University of Calabria, Cosenza, Italy
| | - Vincenzo Mollace
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, Catanzaro, Italy; Interregional Research Center for Food Safety and Health, Catanzaro, Italy
| | - Elzbieta Janda
- Department of Health Sciences, Magna Graecia University, Campus Germaneto, Catanzaro, Italy; Interregional Research Center for Food Safety and Health, Catanzaro, Italy.
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27
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Spigoni V, Mena P, Fantuzzi F, Tassotti M, Brighenti F, Bonadonna RC, Del Rio D, Dei Cas A. Bioavailability of Bergamot (Citrus bergamia) Flavanones and Biological Activity of Their Circulating Metabolites in Human Pro-Angiogenic Cells. Nutrients 2017; 9:nu9121328. [PMID: 29211032 PMCID: PMC5748778 DOI: 10.3390/nu9121328] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 11/23/2017] [Accepted: 12/01/2017] [Indexed: 12/15/2022] Open
Abstract
Myeloid angiogenic cells (MACs) play a key role in endothelial repairing processes and functionality but their activity may be impaired by the lipotoxic effects of some molecules like stearic acid (SA). Among the dietary components potentially able to modulate endothelial function in vivo, (poly)phenolic compounds represent serious candidates. Here, we apply a comprehensive multidisciplinary approach to shed light on the prospects of Bergamot (Citrus bergamia), a citrus fruit rich in flavanones and other phenolic compounds, in the framework of lipotoxicity-induced MACs impairment. The flavanone profile of bergamot juice was characterized and 16 compounds were identified, with a new 3-hydroxy-3-methylglutaryl (HMG) flavanone, isosakuranetin-7-O-neohesperidoside-6″-O-HMG, described for the first time. Then, a pilot bioavailability study was conducted in healthy volunteers to assess the circulating flavanone metabolites in plasma and urine after consumption of bergamot juice. Up to 12 flavanone phase II conjugates (sulfates and glucuronides of hesperetin, naringenin and eriodyctiol) were detected and quantified. Finally, the effect of some of the metabolites identified in vivo, namely hesperetin-7-O-glucuronide, hesperetin-3′-O-glucuronide, naringenin-7-O-glucuronide and naringenin-4′-O-glucuronide, was tested, at physiological concentrations, on gene expression of inflammatory markers and apoptosis in MACs exposed to SA. Under these conditions, naringenin-4′-O-glucuronide and hesperetin-7-O-glucuronide were able to modulate inflammation, while no flavanone glucuronide was effective in curbing stearate-induced lipoapoptosis. These results demonstrate that some flavanone metabolites, derived from the in vivo transformation of bergamot juice phenolics in humans, may mitigate stearate-induced inflammation in MACs.
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Affiliation(s)
- Valentina Spigoni
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.
| | - Pedro Mena
- The Laboratory of Phytochemicals in Physiology, Department of Food & Drugs, University of Parma, 43125 Parma, Italy.
| | - Federica Fantuzzi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.
| | - Michele Tassotti
- The Laboratory of Phytochemicals in Physiology, Department of Food & Drugs, University of Parma, 43125 Parma, Italy.
| | - Furio Brighenti
- The Laboratory of Phytochemicals in Physiology, Department of Food & Drugs, University of Parma, 43125 Parma, Italy.
| | - Riccardo C Bonadonna
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.
- Division of Endocrinology and Metabolic Diseases, Azienda Ospedaliero-Universitaria of Parma, 43126 Parma, Italy.
| | - Daniele Del Rio
- The Laboratory of Phytochemicals in Physiology, Department of Food & Drugs, University of Parma, 43125 Parma, Italy.
| | - Alessandra Dei Cas
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.
- Division of Endocrinology and Metabolic Diseases, Azienda Ospedaliero-Universitaria of Parma, 43126 Parma, Italy.
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