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Abdul-Wahab HY, Salah R, Abdulbaqi HR. Salivary levels of catalase, total antioxidant capacity and interleukin-1β and oral health-related quality of life after matcha and green tea consumption for patients with gingivitis: A randomized clinical trial. Int J Dent Hyg 2024. [PMID: 38764154 DOI: 10.1111/idh.12820] [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: 04/05/2023] [Revised: 04/16/2024] [Accepted: 05/04/2024] [Indexed: 05/21/2024]
Abstract
OBJECTIVES To evaluate the changes in salivary levels of catalase (CAT), total antioxidant capacity (TAC) and IL-1β (primary outcomes) as well as gingival health and oral health-related quality of life (OHRQOL) 1 month after the consumption of matcha and green tea in adult patients with gingivitis. METHODS This study was a parallel randomized clinical trial. Forty gingivitis adult patients were randomly assigned to drink either matcha or green tea cup twice daily for a duration of 1 month. They were asked to keep their habitual oral hygiene measures. Plaque index (PI) and bleeding on probing (BOP) were recorded. In addition, saliva was collected at baseline and 1 month after tea consumption. Salivary levels of CAT, TAC and IL-1β were determined by ELISA. Each participant was asked to fill OHIP-14 questionnaire before and after tea consumption. RESULTS Following tea intake, 40.6% of the study sample had healthy gingiva. Both groups similarly showed reductions in PI (0.32 ± 0.11-0.22 ± 0.08) and BOP (0.24 ± 0.08-0.13 ± 0.07) scores after tea consumption. There was a significant difference between mean TAC before and after matcha tea consumption only. Non-significant reductions in salivary levels of CAT and IL-1β were detected after tea consumption. OHRQOL of participants was improved after tea, both types, consumption. CONCLUSION Despite study limitations, daily consumption of matcha and green tea might be beneficial as they potentially enhance OHRQOL of individuals with gingivitis and reduce the extent of gingivitis despite non-significant changes in salivary antioxidants and IL-1β levels.
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Affiliation(s)
| | - Rasha Salah
- Department of Periodontics, College of Dentistry University of Baghdad, Baghdad, Iraq
| | - Hayder Raad Abdulbaqi
- Department of Periodontics, College of Dentistry University of Baghdad, Baghdad, Iraq
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Sharma A, Anurag, Kaur J, Kesharwani A, Parihar VK. Antimicrobial Potential of Polyphenols: An Update on Alternative for Combating Antimicrobial Resistance. Med Chem 2024; 20:576-596. [PMID: 38584534 DOI: 10.2174/0115734064277579240328142639] [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: 09/13/2023] [Revised: 02/29/2024] [Accepted: 03/14/2024] [Indexed: 04/09/2024]
Abstract
The last decade has encountered an increasing demand for plant-based natural antibiotics. This demand has led to more research-based investigations for natural sources of antimicrobial agents and published reports demonstrating that plant extracts are widely applied in modern medicine, reporting potential activity that may be due to polyphenol compounds. Interestingly, the effects of polyphenols on the sensitivity of bacteria to antibiotics have not been well-studied. Hence, the current review encompasses the prospective application of plant-based phenolic extracts from plants of Indian origin. The emergence of resistance to antimicrobial agents has increased the inefficacy of many antimicrobial drugs. Several strategies have been developed in recent times to overcome this issue. A combination of antimicrobial agents is employed for the failing antibiotics, which restores the desirable effect but may have toxicity-related issues. Phytochemicals such as some polyphenols have demonstrated their potent activity as antimicrobial agents of natural origin to work against resistance issues. These agents alone or in combination with certain antibiotics have been shown to enhance the antimicrobial activity against a spectrum of microbes. However, the information regarding the mechanisms and structure-activity relationships remains elusive. The present review also focuses on the possible mechanisms of natural compounds based on their structure- activity relationships for incorporating polyphenolic compounds in the drug-development processes. Besides this work, polyphenols could reduce drug dosage and may diminish the unhidden or hidden side effects of antibiotics. Pre-clinical findings have provided strong evidence that polyphenolic compounds, individually and in combination with already approved antibiotics, work well against the development of resistance. However, more studies must focus on in vivo results, and clinical research needs to specify the importance of polyphenol-based antibacterials in clinical trials.
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Affiliation(s)
- Alok Sharma
- Department of Pharmaceutical Technology, MIET, Meerut (UP), 250005, India
| | - Anurag
- Department of Pharmaceutical Technology, MIET, Meerut (UP), 250005, India
| | - Jasleen Kaur
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research, Raebareli, 226002, UP, India
| | - Anuradha Kesharwani
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research Hajipur, 844102, Hajipur, India
| | - Vipan Kumar Parihar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research Hajipur, 844102, Hajipur, India
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Cho HJ, Kim JH. Pd-catalyzed oxa-[4 + n] dipolar cycloaddition using 1,4-O/C dipole synthons for the synthesis of O-heterocycles. Org Biomol Chem 2023. [PMID: 38009204 DOI: 10.1039/d3ob01619f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
Transition metal-catalyzed dipolar cycloaddition is one of the most efficient and powerful synthetic strategies to produce diverse heterocycles. In particular, for the construction of oxygen-containing heterocycles, which are valuable structural motifs found in pharmaceuticals and natural compounds, transition metal-catalyzed oxa-dipolar cycloaddition using an oxygen-containing dipole has emerged as a promising method. In recent years, the 1,4-O/C dipole synthons 2-alkylidenetrimethylene carbonate and 2-hydroxymethylallyl carbonate have been developed and successfully applied to palladium-catalyzed oxa-[4 + n] dipolar cycloadditions with diverse dipolarophiles. In this review, we summarize recent advances in palladium-catalyzed oxa-[4 + n] dipolar cycloadditions using 1,4-O/C dipoles including asymmetric catalysis and divergent catalysis toward five- to nine-membered O-heterocycles.
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Affiliation(s)
- Ho-Jun Cho
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea.
| | - Ju Hyun Kim
- Department of Chemistry (BK21 Four), Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea.
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Rani A, Saini V, Patra P, Prashar T, Pandey RK, Mishra A, Jha HC. Epigallocatechin Gallate: A Multifaceted Molecule for Neurological Disorders and Neurotropic Viral Infections. ACS Chem Neurosci 2023; 14:2968-2980. [PMID: 37590965 DOI: 10.1021/acschemneuro.3c00368] [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] [Indexed: 08/19/2023] Open
Abstract
Epigallocatechin-3-gallate (EGCG), a polyphenolic moiety found in green tea extracts, exhibits pleiotropic bioactivities to combat many diseases including neurological ailments. These neurological diseases include Alzheimer's disease, multiple sclerosis, Parkinson's disease, Huntington's disease, and amyotrophic lateral sclerosis. For instance, in the case of Alzheimer's disease, the formation of a β-sheet in the region of the 10th-21st amino acids was significantly reduced in EGCG-induced oligomeric samples of Aβ40. Its interference induces the formation of Aβ structures with an increase in intercenter-of-mass distances, reduction in interchain/intrachain contacts, reduction in β-sheet propensity, and increase in α-helix. Besides, numerous neurotropic viruses are known to instigate or aggravate neurological ailments. It exerts an effect on the oxidative damage caused in neurodegenerative disorders by acting on GSK3-β, PI3K/Akt, and downstream signaling pathways via caspase-3 and cytochrome-c. EGCG also diminishes these viral-mediated effects, such as EGCG delayed HSV-1 infection by blocking the entry for virions, inhibitory effects on NS3/4A protease or NS5B polymerase of HCV and potent inhibitor of ZIKV NS2B-NS3pro/NS3 serine protease (NS3-SP). It showed a reduction in the neurotoxic properties of HIV-gp120 and Tat in the presence of IFN-γ. EGCG also involves numerous viral-mediated inflammatory cascades, such as JAK/STAT. Nonetheless, it also inhibits the Epstein-Barr virus replication protein (Zta and Rta). Moreover, it also impedes certain viruses (influenza A and B strains) by hijacking the endosomal and lysosomal compartments. Therefore, the current article aims to describe the importance of EGCG in numerous neurological diseases and its inhibitory effect against neurotropic viruses.
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Affiliation(s)
- Annu Rani
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, 453552, Indore India
| | - Vaishali Saini
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, 453552, Indore India
| | - Priyanka Patra
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, 453552, Indore India
| | - Tanish Prashar
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu India
| | - Rajan Kumar Pandey
- Department of Medical Biochemistry and Biophysics, Karolinska Institute, 17177 Stockholm, Sweden
| | - Amit Mishra
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Karwar, 342030, Jodhpur India
| | - Hem Chandra Jha
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Simrol, 453552, Indore India
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Della Via FI, Alvarez MC, Basting RT, Saad STO. The Effects of Green Tea Catechins in Hematological Malignancies. Pharmaceuticals (Basel) 2023; 16:1021. [PMID: 37513933 PMCID: PMC10385775 DOI: 10.3390/ph16071021] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
Green tea catechins are bioactive polyphenol compounds which have attracted significant attention for their diverse biological activities and potential health benefits. Notably, epigallocatechin-3-gallate (EGCG) has emerged as a potent apoptosis inducer through mechanisms involving caspase activation, modulation of Bcl-2 family proteins, disruption of survival signaling pathways and by regulating the redox balance, inducing oxidative stress. Furthermore, emerging evidence suggests that green tea catechins can modulate epigenetic alterations, including DNA methylation and histone modifications. In addition to their apoptotic actions, ROS signaling effects and reversal of epigenetic alterations, green tea catechins have shown promising results in promoting the differentiation of leukemia cells. This review highlights the comprehensive actions of green tea catechins and provides valuable insights from clinical trials investigating the therapeutic potential of green tea catechins in leukemia treatment. Understanding these multifaceted mechanisms and the outcomes of clinical trials may pave the way for the development of innovative strategies and the integration of green tea catechins into clinical practice for improving leukemia patient outcomes.
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Affiliation(s)
- Fernanda Isabel Della Via
- Hematology and Transfusion Medicine Center, University of Campinas/Hemocentro, UNICAMP, Rua Carlos Chagas 480, Campinas 13083-878, SP, Brazil
| | - Marisa Claudia Alvarez
- Hematology and Transfusion Medicine Center, University of Campinas/Hemocentro, UNICAMP, Rua Carlos Chagas 480, Campinas 13083-878, SP, Brazil
| | - Rosanna Tarkany Basting
- Hematology and Transfusion Medicine Center, University of Campinas/Hemocentro, UNICAMP, Rua Carlos Chagas 480, Campinas 13083-878, SP, Brazil
| | - Sara Teresinha Olalla Saad
- Hematology and Transfusion Medicine Center, University of Campinas/Hemocentro, UNICAMP, Rua Carlos Chagas 480, Campinas 13083-878, SP, Brazil
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Sanati M, Afshari AR, Ahmadi SS, Moallem SA, Sahebkar A. Modulation of the ubiquitin-proteasome system by phytochemicals: Therapeutic implications in malignancies with an emphasis on brain tumors. Biofactors 2023; 49:782-819. [PMID: 37162294 DOI: 10.1002/biof.1958] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/20/2023] [Indexed: 05/11/2023]
Abstract
Regarding the multimechanistic nature of cancers, current chemo- or radiotherapies often fail to eradicate disease pathology, and frequent relapses or resistance to therapies occur. Brain malignancies, particularly glioblastomas, are difficult-to-treat cancers due to their highly malignant and multidimensional biology. Unfortunately, patients suffering from malignant tumors often experience poor prognoses and short survival periods. Thus far, significant efforts have been conducted to discover novel and more effective modalities. To that end, modulation of the ubiquitin-proteasome system (UPS) has attracted tremendous interest since it affects the homeostasis of proteins critically engaged in various cell functions, for example, cell metabolism, survival, proliferation, and differentiation. With their safe and multimodal actions, phytochemicals are among the promising therapeutic tools capable of turning the operation of various UPS elements. The present review, along with an updated outline of the role of UPS dysregulation in multiple cancers, provided a detailed discussion on the impact of phytochemicals on the UPS function in malignancies, especially brain tumors.
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Affiliation(s)
- Mehdi Sanati
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Birjand University of Medical Sciences, Birjand, Iran
- Experimental and Animal Study Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Amir R Afshari
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
- Department of Physiology and Pharmacology, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Seyed Sajad Ahmadi
- Department of Ophthalmology, Khatam-Ol-Anbia Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Adel Moallem
- Department of Pharmacology and Toxicology, College of Pharmacy, Al-Zahraa University for Women, Karbala, Iraq
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Oswal M, Varghese R, Zagade T, Dhatrak C, Sharma R, Kumar D. Dietary supplements and medicinal plants in urolithiasis: diet, prevention, and cure. J Pharm Pharmacol 2023:7148056. [PMID: 37130140 DOI: 10.1093/jpp/rgac092] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/16/2022] [Indexed: 05/03/2023]
Abstract
BACKGROUND Urolithiasis has been a major health concern for centuries, primarily owing to the limited treatment options in the physician's armamentarium. However, various studies have underscored a lesser incidence of urolithiasis in cohorts predominantly consuming fruits and vegetables. This article aims to review various dietary plants, medicinal herbs and phytochemicals in the prevention and management of urolithiasis. METHODS To provide context and evidence, relevant publications were identified on Google Scholar, PubMed and Science-Direct using keywords such as urolithiasis, nephrolithiasis, urolithiasis, renal stones, phytochemicals and dietary plants. RESULTS Growing bodies of evidence suggest the incorporation of plant-based foods, medicinal and herbal supplements, and crude drugs containing phytochemicals into the staple diet of people. The anti-urolithiatic activity of these plant bioactives can be attributed to their antioxidant, antispasmodic, diuretic, and inhibitory effect on the crystallization, nucleation and crystal aggregation effects. These mechanisms would help alleviate the events and symptoms that aid in the development and progression of renal calculi. In addition, it will also avoid the exacerbation of secondary disorders like inflammation and injury, which can initiate a vicious circle in turn worsening the disease progression. CONCLUSION In conclusion, the results presented in the review demonstrate the promising role of various dietary plants, medicinal and herbal supplements, and phytochemicals in preventing and managing the precipitation of uroliths. However, more conclusive and cogent evidence from preclinical and clinical studies is required to substantiate their safety, efficacy and toxicity profiles in humans.
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Affiliation(s)
- Mitul Oswal
- Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be) University, Pune Maharashtra, 411038, India
| | - Ryan Varghese
- Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be) University, Pune Maharashtra, 411038, India
| | - Tanmay Zagade
- Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be) University, Pune Maharashtra, 411038, India
| | - Chetan Dhatrak
- Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be) University, Pune Maharashtra, 411038, India
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India
| | - Dileep Kumar
- Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be) University, Pune Maharashtra, 411038, India
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Mir RH, Mir PA, Uppal J, Chawla A, Patel M, Bardakci F, Adnan M, Mohi-ud-din R. Evolution of Natural Product Scaffolds as Potential Proteasome Inhibitors in Developing Cancer Therapeutics. Metabolites 2023; 13:metabo13040509. [PMID: 37110167 PMCID: PMC10142660 DOI: 10.3390/metabo13040509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023] Open
Abstract
Homeostasis between protein synthesis and degradation is a critical biological function involving a lot of precise and intricate regulatory systems. The ubiquitin-proteasome pathway (UPP) is a large, multi-protease complex that degrades most intracellular proteins and accounts for about 80% of cellular protein degradation. The proteasome, a massive multi-catalytic proteinase complex that plays a substantial role in protein processing, has been shown to have a wide range of catalytic activity and is at the center of this eukaryotic protein breakdown mechanism. As cancer cells overexpress proteins that induce cell proliferation, while blocking cell death pathways, UPP inhibition has been used as an anticancer therapy to change the balance between protein production and degradation towards cell death. Natural products have a long history of being used to prevent and treat various illnesses. Modern research has shown that the pharmacological actions of several natural products are involved in the engagement of UPP. Over the past few years, numerous natural compounds have been found that target the UPP pathway. These molecules could lead to the clinical development of novel and potent anticancer medications to combat the onslaught of adverse effects and resistance mechanisms caused by already approved proteasome inhibitors. In this review, we report the importance of UPP in anticancer therapy and the regulatory effects of diverse natural metabolites, their semi-synthetic analogs, and SAR studies on proteasome components, which may aid in discovering a new proteasome regulator for drug development and clinical applications.
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Affiliation(s)
- Reyaz Hassan Mir
- Pharmaceutical Chemistry Division, Department of Pharmaceutical Sciences, University of Kashmir, Hazratbal, Srinagar 190006, Jammu and Kashmir, India
| | - Prince Ahad Mir
- Khalsa College of Pharmacy, G.T. Road, Amritsar 143001, Punjab, India
| | - Jasreen Uppal
- Khalsa College of Pharmacy, G.T. Road, Amritsar 143001, Punjab, India
| | - Apporva Chawla
- Khalsa College of Pharmacy, G.T. Road, Amritsar 143001, Punjab, India
| | - Mitesh Patel
- Department of Biotechnology, Parul Institute of Applied Sciences and Centre of Research for Development, Parul University, Vadodara 391760, Gujarat, India
| | - Fevzi Bardakci
- Department of Biology, College of Science, University of Ha’il, Ha’il P.O. Box 2440, Saudi Arabia
| | - Mohd Adnan
- Department of Biology, College of Science, University of Ha’il, Ha’il P.O. Box 2440, Saudi Arabia
| | - Roohi Mohi-ud-din
- Department of General Medicine, Sher-I-Kashmir Institute of Medical Sciences (SKIMS), Srinagar 190001, Jammu and Kashmir, India
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Wang Z, Li D, Liu X, Zhang M, Chu P, Zhu B, Liu D, Zhou D. Achieving dual functions of texture modification and water retention of shrimp surimi products with the combination of epigallocatechin-3-gallate and γ-cyclodextrin. Food Chem 2023; 418:136034. [PMID: 37003199 DOI: 10.1016/j.foodchem.2023.136034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/10/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023]
Abstract
Epigallocatechin-3-gallate (EGCG) exhibits excellent cross-linking effects of myofibrillar proteins, it is prone to self-aggregation, causing excessive cross-linking and moisture loss of gels, which limits its application as a food additive in surimi products. Here, through combination γ-cyclodextrin and EGCG into one inclusion complex, we achieved proper usage of EGCG in shrimp surimi products: elevating both water holding capability and texture properties (hardness, chewiness and resilience). Moreover, the mechanism behind excellent performance was elucidated: as texture modifiers, the complexes improved gel network integrity through intermolecular interactions and moderated disulfide bonds; and as water retainer agents, the complexes promoted transformation of nitrogen in proteins towards the form of protonated amino, facilitating the occurrence of hydration. Furthermore, the inclusion complexes brought a higher phenolic retention within products in contrast with direct addition of EGCG. This work may propose novel insights for the usage of polyphenols as additives in surimi-based products.
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Affiliation(s)
- Zonghan Wang
- National Engineering Research Center of Seafood, College of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China
| | - Deyang Li
- National Engineering Research Center of Seafood, College of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xiaoyang Liu
- National Engineering Research Center of Seafood, College of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Min Zhang
- National Engineering Research Center of Seafood, College of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Pengfei Chu
- National Engineering Research Center of Seafood, College of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Beiwei Zhu
- National Engineering Research Center of Seafood, College of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China
| | - Donghong Liu
- College of Biosystems Engineering and Food Science, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, Hangzhou 310058, China; Fuli Institute of Food Science, Ningbo Research Institute, Zhejiang University, Hangzhou 310058, China; Innovation Center of Yangtze River Delta, Zhejiang University, Hangzhou 310058, China.
| | - Dayong Zhou
- National Engineering Research Center of Seafood, College of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
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Green Extraction Techniques for the Determination of Active Ingredients in Tea: Current State, Challenges, and Future Perspectives. SEPARATIONS 2023. [DOI: 10.3390/separations10020121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
In recent years, the scientific community has turned its attention to the further study and application of green chemistry as well as to sustainable development in reducing the consumption of raw materials, solvents, and energy. The application of green chemistry aims to ensure the protection of the environment and to also, consequently, improve the quality of human life. It offers several benefits, both socially and economically. In the last few decades, new alternative non-conventional green extraction methodologies have been developed for the purposes of the extraction of active ingredient compounds from various raw products. The main objective of this literature review is to present the current knowledge and future perspectives regarding the green extraction of tea species in respect of the isolation of safe active biomolecules, which can be used as commercially available products—both as dietary supplements and pharmaceutical formulations. More specifically, in this literature review, the intention is to investigate several different extraction techniques, such as ultrasonic-assisted extraction, ultrasonic-assisted extraction with DESs, the microwave assisted-extraction method, and the reflux method. These are presented in respect of their role in the isolation of bioactive molecules regarding different tea species. Furthermore, following the literature review conducted in this study, the commonly used green extraction methods were found to be the ultrasound-assisted method and the microwave-assisted method. In addition to these, the use of a green solvent, in regard to its role in the maximum extraction yield of active ingredients in various species of tea, was emphasized. Catechins, alkaloids (such as caffeine), gallic acid, and flavonoids were the main extracted bioactive molecules that were isolated from the several tea species. From this literature review, it can be demonstrated that green tea has been widely studied at a rate of 52% in respect of the included research studies, followed by black tea at 26%, as well as white tea and oolong tea at 11% each. Regarding the determination of the bioactive molecules, the most utilized analytical method was found in the combination of high-performance liquid chromatography (HPLC) with a photodiode array detector (PDA) and mass spectrophotometry (MS) at a usage rate of about 80%. This method was followed by the utilization of UPLC and GC at 12% and 8%, respectively. In the future, it will be necessary to study the combination of green extraction techniques with other industry strategies, such as an encapsulation at the micro and nano scale, for the purposes of preparing stable final products with antioxidant properties where, finally, they can be safely consumed by humans.
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Zheng X, He L, Yu G, Li Y. Effect of Tea Polyphenols on the Melt Grafting of Glycidyl Methacrylate onto Polypropylene. Polymers (Basel) 2022; 14:polym14235253. [PMID: 36501646 PMCID: PMC9735711 DOI: 10.3390/polym14235253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
It is considered to be one of the most effective strategies to prepare functionalized polypropylene (PP) materials via the melt grafting of polar monomers onto PP chains. However, the grafting efficiency of functional monomers is generally low. To achieve a high grafting efficiency, we explored the effect of tea polyphenols (C), which are good free radical scavengers, on the melt grafting of glycidyl methacrylate (GMA) onto PP chains initiated by dicumyl peroxide (DCP). Specifically, 0.5~3 wt% of tea polyphenols (C) were introduced to the PP/DCP/GMA melt blending system. The morphology, melt flow rate (MFR), thermal and mechanical properties of tea polyphenols (C) incorporated PP/DCP/GMA blends were investigated systematically. The results showed that the proper amount of tea polyphenols (C) (0.5~2 wt%) promoted the grafting of GMA. Unexpectedly, the PP backbone suffered from more severe degradation with the addition of tea polyphenols (C). The phenomena were ascribed to the reaction between phenolic hydroxyl groups of tea polyphenols (C) and epoxy groups of grafted GMA, which was revealed by the FTIR results. In addition, according to DSC and the tensile test, the co-grafting of GMA and tea polyphenols (C) improved the crystallization ability, yield strength and Young's modulus of the PP matrix.
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Affiliation(s)
- Xin Zheng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
- Key Laboratory of Organosilicon Chemistry and Material Technology, College of Material, Chemistry and Chemical Engineering, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| | - Lina He
- Key Laboratory of Organosilicon Chemistry and Material Technology, College of Material, Chemistry and Chemical Engineering, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| | - Guipeng Yu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
- Correspondence: (G.Y.); (Y.L.); Tel.: +86-731-8883-6961 (G.Y.); +86-571-2886-7026 (Y.L.)
| | - Yongjin Li
- Key Laboratory of Organosilicon Chemistry and Material Technology, College of Material, Chemistry and Chemical Engineering, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
- Correspondence: (G.Y.); (Y.L.); Tel.: +86-731-8883-6961 (G.Y.); +86-571-2886-7026 (Y.L.)
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Polyphenols in Metabolic Diseases. Molecules 2022; 27:molecules27196280. [PMID: 36234817 PMCID: PMC9570923 DOI: 10.3390/molecules27196280] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/17/2022] [Accepted: 09/19/2022] [Indexed: 02/01/2023] Open
Abstract
Polyphenols (PPs) are a large group of phytochemicals containing phenolic rings with two or more hydroxyl groups. They possess powerful antioxidant properties, multiple therapeutic effects, and possible health benefits in vivo and in vitro, as well as reported clinical studies. Considering their free-radical scavenging and anti-inflammatory properties, these substances can be used to treat different kinds of conditions associated with metabolic disorders. Many symptoms of metabolic syndrome (MtS), including obesity, dyslipidemia, atherosclerosis, elevated blood sugar, accelerating aging, liver intoxication, hypertension, as well as cancer and neurodegenerative disorders, are substantially relieved by dietary PPs. The present study explores the bioprotective properties and associated underlying mechanisms of PPs. A detailed understanding of these natural compounds will open up new opportunities for producing unique natural PP-rich dietary and medicinal plans, ultimately affirming their health benefits.
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Quantitative microbiome analysis reveals the microbial community assembly along with its correlation with the flavor substances during the manufacturing process of Qingzhuan brick tea at an industrial scale. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Tea (Camellia sinensis): A Review of Nutritional Composition, Potential Applications, and Omics Research. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12125874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Tea (Camelliasinensis) is the world’s most widely consumed non-alcoholic beverage with essential economic and health benefits since it is an excellent source of polyphenols, catechins, amino acids, flavonoids, carotenoids, vitamins, and polysaccharides. The aim of this review is to summarize the main secondary metabolites in tea plants, and the content and distribution of these compounds in six different types of tea and different organs of tea plant were further investigated. The application of these secondary metabolites on food processing, cosmetics industry, and pharmaceutical industry was reviewed in this study. With the rapid advancements in biotechnology and sequencing technology, omics analyses, including genome, transcriptome, and metabolome, were widely used to detect the main secondary metabolites and their molecular regulatory mechanisms in tea plants. Numerous functional genes and regulatory factors have been discovered, studied, and applied to improve tea plants. Research advances, including secondary metabolites, applications, omics research, and functional gene mining, are comprehensively reviewed here. Further exploration and application trends are briefly described. This review provides a reference for basic and applied research on tea plants.
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Green Tea Extract to Prevent Colorectal Adenomas, Results of a Randomized, Placebo-Controlled Clinical Trial. Am J Gastroenterol 2022; 117:884-894. [PMID: 35213393 DOI: 10.14309/ajg.0000000000001706] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 12/27/2021] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Preclinical, epidemiological, and small clinical studies suggest that green tea extract (GTE) and its major active component epigallocatechingallate (EGCG) exhibit antineoplastic effects in the colorectum. METHODS A randomized, double-blind trial of GTE standardized to 150 mg of EGCG b.i.d. vs placebo over 3 years was conducted to prevent colorectal adenomas (n = 1,001 with colon adenomas enrolled, 40 German centers). Randomization (1:1, n = 879) was performed after a 4-week run-in with GTE for safety assessment. The primary end point was the presence of adenoma/colorectal cancer at the follow-up colonoscopy 3 years after randomization. RESULTS The safety profile of GTE was favorable with no major differences in adverse events between the 2 well-balanced groups. Adenoma rate in the modified intention-to-treat set (all randomized participants [intention-to-treat population] and a follow-up colonoscopy 26-44 months after randomization; n = 632) was 55.7% in the placebo and 51.1% in the GTE groups. This 4.6% difference was not statistically significant (adjusted relative risk 0.905; P = 0.1613). The respective figures for the per-protocol population were 54.3% (151/278) in the placebo group and 48.3% (129/267) in the GTE group, indicating a slightly lower adenoma rate in the GTE group, which was not significant (adjusted relative risk 0.883; P = 0.1169). DISCUSSION GTE was well tolerated, but there was no statistically significant difference in the adenoma rate between the GTE and the placebo groups in the whole study population.
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The influence of antioxidant dietary-derived polyphenolic combination on breast cancer: Molecular study. Biomed Pharmacother 2022; 149:112835. [PMID: 35325850 DOI: 10.1016/j.biopha.2022.112835] [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: 01/02/2022] [Revised: 03/13/2022] [Accepted: 03/16/2022] [Indexed: 12/24/2022] Open
Abstract
Breast cancer remains a leading cause of female mortality worldwide. Therefore, novel complementary treatments have been sought. Recently, there has been a growing interest in investigating the possible complementary effects of polyphenolic compounds against various malignancies. In the present study, using MCF-7 and MDA-MB-231 human breast adenocarcinoma cells, the anticancer efficacy of a polyphenolic mixture (PFM) was investigated. PFM is composed of curcumin, resveratrol, epigallocatechin gallate, and quercetin. PFM treatment led to a dose-dependent inhibition of cell proliferation, with IC50 values of 25.9 ± 3 µg/ml and 29.4 ± 0.9 µg/ml for MCF-7 and MDA-MB-231 cells, respectively. In addition, PFM induced apoptosis in MDA-MB-231 cells and cell cycle arrest at the S phase in MCF-7 cells. Using RT-qPCR, PFM treatment was observed to result in significant downregulation of the oncogenic miR-155 (P < 0.05), as well as significant downregulation of the rate-limiting glycolytic enzyme, hexokinase 2 (HK2) (P < 0.05), while upregulating the expression of the zinc finger E-box binding homeobox 2 gene (P < 0.01). PFM was also found to exert an anti-migration effect in breast cancer cells using the wound healing assay, as well as significantly (P < 0.05) increasing the median survival of Ehrlich ascites carcinoma (EAC) tumor-bearing mice. These results suggest that PFM possesses potential antitumor effects against breast cancer. A possible mechanism of action could be due to PFM's effect in modulating the expression of the glycolytic enzyme HK2 through suppression of miR-155 in MCF-7 cells. Combining polyphenolic compounds that interact with one another could result in synergistic effects that potentially target various tumour hallmarks.
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Li J, Ma J, Zhang Y, Zheng L. Determination of 19 polyphenolic compounds in tea by ultra-high performance liquid chromatography combined with quadrupole-time of flight mass spectrometry. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2021.12.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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18
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An Overview on How Exercise with Green Tea Consumption Can Prevent the Production of Reactive Oxygen Species and Improve Sports Performance. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 19:ijerph19010218. [PMID: 35010479 PMCID: PMC8750450 DOI: 10.3390/ijerph19010218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 02/07/2023]
Abstract
Free radicals are reactive products that have multiple effects on the human body. Endogenous and exogenous antioxidants manage the overproduction of free radicals. However, an imbalance between free radicals and antioxidant factors causes oxidative stress. Exercise and physical activity are factors that increase oxidative stress and disrupts the body’s homeostasis. Intensity and duration of training, training characteristics, and fitness level can have positive or negative effects on oxidative stress. Green tea consumption is recommended for the prevention of a variety of diseases, health maintenance, and weight loss. The effectiveness of green tea is primarily due to the presence of catechins and polyphenols, specifically (–)-epigallocatechin-3-gallate, which has antioxidant and anti-inflammatory properties based on clinical and animal studies. This review investigates the effect of green tea exercise and their interactive effects on free radicals and sports improvement.
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Ge X, Du Y, Chen J, Zhu N, Yao J, Zhang X, Wang N, Sun Y, Gao F, Hu W, Hou Y. Herbal NF-κB Inhibitors Sensitize Rituximab-Resistant B Lymphoma Cells to Complement-Mediated Cytolysis. Front Oncol 2021; 11:751904. [PMID: 34956875 PMCID: PMC8692258 DOI: 10.3389/fonc.2021.751904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/22/2021] [Indexed: 11/15/2022] Open
Abstract
Background Drug resistance remains a serious challenge to rituximab therapy in B-NHL (B cell non-Hodgkin’s lymphoma). CDC (complement-dependent cytotoxicity) has been proposed as a major antitumor mechanism of rituximab, and direct abrogation of CD59 function partially restores rituximab sensitivity with high efficacy. However, universal blockade of CD59 may have deleterious effects on normal cells. Sp1 regulates constitutive CD59 expression, whereas NF-κB and CREB regulate inducible CD59 expression. Methods Immunohistochemistry (IHC) assay was used to detect the expression levels of CD59 and other related molecules. Quantitative Real-time PCR (RT-PCR) analysis was used to explore the levels of transcripts in the original and resistant cells. We chose LY8 cells to test the effects of NF-κB and CBP/p300 inhibition on CD59 expression using flow cytometry (FACS). Immunoblotting analysis was employed to detect the effects of curcumin and POH. The in vitro and in vivo experiments were used to evaluate the toxicity and combined inhibitory effect on tumor cells of curcumin and POH. Results We demonstrated that herbal (curcumin and perillyl alcohol) blockade of NF-κB specifically suppresses the expression of inducible CD59 but not CD20, thus sensitizing resistant cells to rituximab-mediated CDC. Moreover, activation of NF-κB and CREB is highly correlated with CD59 expression in B-NHL tissues. Conclusions Our findings suggest the potential of CD59 expression as a predictor of therapeutic efficacy of NF-κB inhibitors in clinical application as well as the rationality of a NF-κB inhibitor-rituximab regimen in B-NHL therapy.
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Affiliation(s)
- Xiaowen Ge
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yiqun Du
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jianfeng Chen
- State Key Laboratory of Oncology, National Sun Yat-sen University, Guangzhou, China
| | - Na Zhu
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jiamei Yao
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xin Zhang
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Na Wang
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yujing Sun
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Feng Gao
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Weiguo Hu
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
- *Correspondence: Yingyong Hou, ; Weiguo Hu,
| | - Yingyong Hou
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
- *Correspondence: Yingyong Hou, ; Weiguo Hu,
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20
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Ye H, Folz J, Li C, Zhang Y, Hou Z, Zhang L, Su S. Response of metabolic and lipid synthesis gene expression changes in Camellia oleifera to mulched ecological mat under drought conditions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 795:148856. [PMID: 34328946 DOI: 10.1016/j.scitotenv.2021.148856] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Plants respond to adverse conditions by activating defense mechanisms that alter metabolism and impact agricultural crop yield. Organic mulching of Camellia oleifera leads to increased oil yield compared to control. In this study, multi-platform untargeted metabolomics and qRT-PCR were used to measure the effects of organic mulching on seed kernel metabolism. Metabolomics analysis revealed that tyrosine, tryptophan, and several flavonoids and polyphenol metabolites were significantly lower in the mulched treatment compared to the control, indicating lower stress levels with mulching. The qRT-PCR analysis showed that EAR, SAD, and CoHCD were up-regulated by mulching, while CT, FAD7, FAD8, CoATS1, SQS, SQE, FATB, and β-AS were down-regulated. Correlation network analysis was used to integrate data from this multi-omics investigation to analyze the relationships between differentially expressed genes, metabolites, and fruit and soil indicators concerning mulch treatment of C. oleifera.
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Affiliation(s)
- Honglian Ye
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, PR China; West Coast Metabolomics Center, UC-Davis, 95616 CA, USA.
| | - Jacob Folz
- West Coast Metabolomics Center, UC-Davis, 95616 CA, USA.
| | - Chao Li
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, PR China.
| | - Ying Zhang
- West Coast Metabolomics Center, UC-Davis, 95616 CA, USA.
| | - Zhixia Hou
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, PR China
| | - Lingyun Zhang
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, PR China.
| | - Shuchai Su
- Key Laboratory for Silviculture and Conservation, Ministry of Education, Beijing Forestry University, Beijing 100083, PR China.
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21
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Avila-Carrasco L, García-Mayorga EA, Díaz-Avila DL, Garza-Veloz I, Martinez-Fierro ML, González-Mateo GT. Potential Therapeutic Effects of Natural Plant Compounds in Kidney Disease. Molecules 2021; 26:molecules26206096. [PMID: 34684678 PMCID: PMC8541433 DOI: 10.3390/molecules26206096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 02/06/2023] Open
Abstract
Background: The blockade of the progression or onset of pathological events is essential for the homeostasis of an organism. Some common pathological mechanisms involving a wide range of diseases are the uncontrolled inflammatory reactions that promote fibrosis, oxidative reactions, and other alterations. Natural plant compounds (NPCs) are bioactive elements obtained from natural sources that can regulate physiological processes. Inflammation is recognized as an important factor in the development and evolution of chronic renal damage. Consequently, any compound able to modulate inflammation or inflammation-related processes can be thought of as a renal protective agent and/or a potential treatment tool for controlling renal damage. The objective of this research was to review the beneficial effects of bioactive natural compounds on kidney damage to reveal their efficacy as demonstrated in clinical studies. Methods: This systematic review is based on relevant studies focused on the impact of NPCs with therapeutic potential for kidney disease treatment in humans. Results: Clinical studies have evaluated NPCs as a different way to treat or prevent renal damage and appear to show some benefits in improving OS, inflammation, and antioxidant capacity, therefore making them promising therapeutic tools to reduce or prevent the onset and progression of KD pathogenesis. Conclusions: This review shows the promising clinical properties of NPC in KD therapy. However, more robust clinical trials are needed to establish their safety and therapeutic effects in the area of renal damage.
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Affiliation(s)
- Lorena Avila-Carrasco
- Molecular Medicine Laboratory, Academic Unit of Human Medicine and Health Sciences, Autonomous University of Zacatecas, Carretera Zacatecas-Guadalajara Km.6, Ejido la Escondida, Zacatecas 98160, Mexico; (I.G.-V.); (M.L.M.-F.)
- Academic Unit of Human Medicine and Health Sciences, Therapeutic and Pharmacology Department, Autonomous University of Zacatecas, Zacatecas 98160, Mexico; (E.A.G.-M.); (D.L.D.-A.)
- Correspondence: ; Tel.: +52-492-8926556
| | - Elda Araceli García-Mayorga
- Academic Unit of Human Medicine and Health Sciences, Therapeutic and Pharmacology Department, Autonomous University of Zacatecas, Zacatecas 98160, Mexico; (E.A.G.-M.); (D.L.D.-A.)
| | - Daisy L. Díaz-Avila
- Academic Unit of Human Medicine and Health Sciences, Therapeutic and Pharmacology Department, Autonomous University of Zacatecas, Zacatecas 98160, Mexico; (E.A.G.-M.); (D.L.D.-A.)
| | - Idalia Garza-Veloz
- Molecular Medicine Laboratory, Academic Unit of Human Medicine and Health Sciences, Autonomous University of Zacatecas, Carretera Zacatecas-Guadalajara Km.6, Ejido la Escondida, Zacatecas 98160, Mexico; (I.G.-V.); (M.L.M.-F.)
| | - Margarita L Martinez-Fierro
- Molecular Medicine Laboratory, Academic Unit of Human Medicine and Health Sciences, Autonomous University of Zacatecas, Carretera Zacatecas-Guadalajara Km.6, Ejido la Escondida, Zacatecas 98160, Mexico; (I.G.-V.); (M.L.M.-F.)
| | - Guadalupe T González-Mateo
- Research Institute of La Paz (IdiPAZ), University Hospital La Paz, 28046 Madrid, Spain;
- Molecular Biology Research, Centre Severo Ochoa, Spanish Council for Scientific Research (CSIC), 28049 Madrid, Spain
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22
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Suner SS, Sahiner M, Mohapatra S, Ayyala RS, Bhethanabotla VR, Sahiner N. Degradable poly(catechin) nanoparticles as a versatile therapeutic agent. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1941957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Selin S. Suner
- Department of Chemistry, Faculty of Sciences & Arts, and Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Mehtap Sahiner
- Department of Fashion Design, Canakkale Applied Science, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Subhra Mohapatra
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida, USA
| | - Ramesh S. Ayyala
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida Eye Institute, Tampa, Florida, USA
| | - Venkat R. Bhethanabotla
- Department of Chemical, Biological, and Materials Science and Engineering Program, University of South Florida, Tampa, Florida, USA
| | - Nurettin Sahiner
- Department of Chemistry, Faculty of Sciences & Arts, and Nanoscience and Technology Research and Application Center (NANORAC), Canakkale Onsekiz Mart University, Canakkale, Turkey
- Department of Ophthalmology, Morsani College of Medicine, University of South Florida Eye Institute, Tampa, Florida, USA
- Department of Chemical, Biological, and Materials Science and Engineering Program, University of South Florida, Tampa, Florida, USA
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Gairola K, Gururani S, Bahuguna A, Garia V, Pujari R, Dubey SK. Natural products targeting cancer stem cells: Implications for cancer chemoprevention and therapeutics. J Food Biochem 2021; 45:e13772. [PMID: 34028051 DOI: 10.1111/jfbc.13772] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 04/06/2021] [Accepted: 05/03/2021] [Indexed: 12/14/2022]
Abstract
Cancer, being the leading cause of death in the globe, has been one of the major thrust areas of research worldwide. In a new paradigm about neoplastic transformations, the initiation and recurrence of disease is attributed to few mutated cells in bulk of tumor called cancer stem cells (CSCs). CSCs have capacity of self-renewal and differentiation, which are known for resistance to radio and chemotherapy leading to recurrence of the disease even after treatment. Most of traditional drugs implicated in cancer therapy targeting primary tumors have substantial toxicity to the physiological system and have not been efficient in targeting these CSCs leading to poor prognosis. Targeting these CSCs in bulk of tumor might be novel strategy for cancer chemoprevention and therapeutics. Diet-derived interventions and diverse natural products are known to target these CSCs and related signaling pathways, namely, Wnt, Notch, and Hedgehog pathways, which are implicated for CSC self-renewal. PRACTICAL APPLICATIONS: Cancer remains a global challenge even in this century. Poor prognosis, survival rate, and recurrence of the disease have been the major concerns in traditional cancer therapy regimes. Targeting cancer stem cells might be novel strategy for elimination and cure of the chronic disease as they are known to modulate all stages of carcinogenesis and responsible for recurrence and resistance to chemotherapy and radiotherapy. The evidence support that natural products might inhibit, delay, or reverse the process of tumorigenesis and modulate the different signaling pathways implicated for cancer stem cells self-renewal and differentiation. Natural products have minimal toxicity compared to traditional cancer therapy drugs since they have long been utilized in our food habits without any major side effects reported. Thus, targeting cancer stem cells with natural product might be a novel strategy for drug development in cancer chemoprevention and therapeutics.
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Affiliation(s)
- Kanchan Gairola
- Department of Biochemistry, G. B. Pant University of Agriculture and Technology, Pantnagar, India
| | - Shriya Gururani
- Department of Biochemistry, G. B. Pant University of Agriculture and Technology, Pantnagar, India
| | - Ananya Bahuguna
- Department of Biochemistry, G. B. Pant University of Agriculture and Technology, Pantnagar, India
| | - Vaishali Garia
- Department of Biochemistry, G. B. Pant University of Agriculture and Technology, Pantnagar, India
| | - Rohit Pujari
- Department of Biochemistry, G. B. Pant University of Agriculture and Technology, Pantnagar, India
| | - Shiv K Dubey
- Department of Biochemistry, G. B. Pant University of Agriculture and Technology, Pantnagar, India
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Della Via FI, Shiraishi RN, Santos I, Ferro KP, Salazar-Terreros MJ, Franchi Junior GC, Rego EM, Saad STO, Torello CO. (-)-Epigallocatechin-3-gallate induces apoptosis and differentiation in leukaemia by targeting reactive oxygen species and PIN1. Sci Rep 2021; 11:9103. [PMID: 33907248 PMCID: PMC8079435 DOI: 10.1038/s41598-021-88478-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 03/01/2021] [Indexed: 02/02/2023] Open
Abstract
(-)-Epigallocatechin-3-gallate (EGCG), the major active polyphenol extracted from green tea, has been shown to induce apoptosis and inhibit cell proliferation, cell invasion, angiogenesis and metastasis. Herein, we evaluated the in vivo effects of EGCG in acute myeloid leukaemia (AML) using an acute promyelocytic leukaemia (APL) experimental model (PML/RARα). Haematological analysis revealed that EGCG treatment reversed leucocytosis, anaemia and thrombocytopenia, and prolonged survival of PML/RARα mice. Notably, EGCG reduced leukaemia immature cells and promyelocytes in the bone marrow while increasing mature myeloid cells, possibly due to apoptosis increase and cell differentiation. The reduction of promyelocytes and neutrophils/monocytes increase detected in the peripheral blood, in addition to the increased percentage of bone marrow cells with aggregated promyelocytic leukaemia (PML) bodies staining and decreased expression of PML-RAR oncoprotein corroborates our results. In addition, EGCG increased expression of neutrophil differentiation markers such as CD11b, CD14, CD15 and CD66 in NB4 cells; and the combination of all-trans retinoic acid (ATRA) plus EGCG yield higher increase the expression of CD15 marker. These findings could be explained by a decrease of peptidyl-prolyl isomerase NIMA-interacting 1 (PIN1) expression and reactive oxygen species (ROS) increase. EGCG also decreased expression of substrate oncoproteins for PIN1 (including cyclin D1, NF-κB p65, c-MYC, and AKT) and 67 kDa laminin receptor (67LR) in the bone marrow cells. Moreover, EGCG showed inhibition of ROS production in NB4 cells in the presence of N-acetyl-L-cysteine (NAC), as well as a partial blockage of neutrophil differentiation and apoptosis, indicating that EGCG-activities involve/or are in response of oxidative stress. Furthermore, apoptosis of spleen cells was supported by increasing expression of BAD and BAX, parallel to BCL-2 and c-MYC decrease. The reduction of spleen weights of PML/RARα mice, as well as apoptosis induced by EGCG in NB4 cells in a dose-dependent manner confirms this assumption. Our results support further evaluation of EGCG in clinical trials for AML, since EGCG could represent a promising option for AML patient ineligible for current mainstay treatments.
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Affiliation(s)
- Fernanda Isabel Della Via
- grid.411087.b0000 0001 0723 2494Haematology and Transfusion Medicine Centre – Hemocentro, University of Campinas, Campinas, 13083-878 Brazil
| | - Rodrigo Naoto Shiraishi
- grid.411087.b0000 0001 0723 2494Haematology and Transfusion Medicine Centre – Hemocentro, University of Campinas, Campinas, 13083-878 Brazil
| | - Irene Santos
- grid.411087.b0000 0001 0723 2494Haematology and Transfusion Medicine Centre – Hemocentro, University of Campinas, Campinas, 13083-878 Brazil
| | - Karla Priscila Ferro
- grid.411087.b0000 0001 0723 2494Haematology and Transfusion Medicine Centre – Hemocentro, University of Campinas, Campinas, 13083-878 Brazil
| | - Myriam Janeth Salazar-Terreros
- grid.411087.b0000 0001 0723 2494Haematology and Transfusion Medicine Centre – Hemocentro, University of Campinas, Campinas, 13083-878 Brazil
| | - Gilberto Carlos Franchi Junior
- grid.411087.b0000 0001 0723 2494Onco-Haematological Child Centre, Faculty of Medical Sciences, University of Campinas, Campinas, 13083-970 Brazil
| | - Eduardo Magalhães Rego
- grid.11899.380000 0004 1937 0722Haematology and Clinical Oncology Division, Department of Internal Medicine, University of São Paulo, Ribeirão Preto, 14048-900 Brazil
| | - Sara Teresinha Olalla Saad
- grid.411087.b0000 0001 0723 2494Haematology and Transfusion Medicine Centre – Hemocentro, University of Campinas, Campinas, 13083-878 Brazil
| | - Cristiane Okuda Torello
- grid.411087.b0000 0001 0723 2494Haematology and Transfusion Medicine Centre – Hemocentro, University of Campinas, Campinas, 13083-878 Brazil
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Zwolak I. Epigallocatechin Gallate for Management of Heavy Metal-Induced Oxidative Stress: Mechanisms of Action, Efficacy, and Concerns. Int J Mol Sci 2021; 22:4027. [PMID: 33919748 PMCID: PMC8070748 DOI: 10.3390/ijms22084027] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/10/2021] [Accepted: 04/12/2021] [Indexed: 02/07/2023] Open
Abstract
In this review, we highlight the effects of epigallocatechin gallate (EGCG) against toxicities induced by heavy metals (HMs). This most active green tea polyphenol was demonstrated to reduce HM toxicity in such cells and tissues as testis, liver, kidney, and neural cells. Several protective mechanisms that seem to play a pivotal role in EGCG-induced effects, including reactive oxygen species scavenging, HM chelation, activation of nuclear factor erythroid 2-related factor 2 (Nrf2), anti-inflammatory effects, and protection of mitochondria, are described. However, some studies, especially in vitro experiments, reported potentiation of harmful HM actions in the presence of EGCG. The adverse impact of EGCG on HM toxicity may be explained by such events as autooxidation of EGCG, EGCG-mediated iron (Fe3+) reduction, depletion of intracellular glutathione (GSH) levels, and disruption of mitochondrial functions. Furthermore, challenges hampering the potential EGCG application related to its low bioavailability and proper dosing are also discussed. Overall, in this review, we point out insights into mechanisms that might account for both the beneficial and adverse effects of EGCG in HM poisoning, which may have a bearing on the design of new therapeutics for HM intoxication therapy.
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Affiliation(s)
- Iwona Zwolak
- Centre for Interdisciplinary Research, Laboratory of Oxidative Stress, The John Paul II Catholic University of Lublin, Konstantynów Ave. 1J, 20-708 Lublin, Poland
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Epigallocatechin-3-Gallate Plus Omega-3 Restores the Mitochondrial Complex I and F 0F 1-ATP Synthase Activities in PBMCs of Young Children with Down Syndrome: A Pilot Study of Safety and Efficacy. Antioxidants (Basel) 2021; 10:antiox10030469. [PMID: 33809669 PMCID: PMC8002266 DOI: 10.3390/antiox10030469] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/05/2021] [Accepted: 03/14/2021] [Indexed: 12/15/2022] Open
Abstract
Down syndrome (DS) is a major genetic cause of intellectual disability. DS pathogenesis has not been fully elucidated, and no specific pharmacological therapy is available. DYRK1A overexpression, oxidative stress and mitochondrial dysfunction were described in trisomy 21. Epigallocatechin-3-gallate (EGCG) is a multimodal nutraceutical with antioxidant properties. EGCG inhibits DYRK1A overexpression and corrects DS mitochondrial dysfunction in vitro. The present study explores safety profiles in DS children aged 1–8 years treated with EGCG (10 mg/kg/die, suspended in omega-3, per os, in fasting conditions, for 6 months) and EGCG efficacy in restoring mitochondrial complex I and F0F1-ATP synthase (complex V) deficiency, assessed on PBMCs. The Griffiths Mental Developmental Scales—Extended Revised (GMDS-ER) was used for developmental profiling. Results show that decaffeinated EGCG (>90%) plus omega-3 is safe in DS children and effective in reverting the deficit of mitochondrial complex I and V activities. Decline of plasma folates was observed in 21% of EGCG-treated patients and should be carefully monitored. GMDS-ER scores did not show differences between the treated group compared to the DS control group. In conclusion, EGCG plus omega-3 can be safely administered under medical supervision in DS children aged 1–8 years to normalize mitochondria respiratory chain complex activities, while results on the improvement of developmental performance are still inconclusive.
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Cancer Related Anemia: An Integrated Multitarget Approach and Lifestyle Interventions. Nutrients 2021; 13:nu13020482. [PMID: 33535496 PMCID: PMC7912724 DOI: 10.3390/nu13020482] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 12/16/2022] Open
Abstract
Cancer is often accompanied by worsening of the patient's iron profile, and the resulting anemia could be a factor that negatively impacts antineoplastic treatment efficacy and patient survival. The first line of therapy is usually based on oral or intravenous iron supplementation; however, many patients remain anemic and do not respond. The key might lie in the pathogenesis of the anemia itself. Cancer-related anemia (CRA) is characterized by a decreased circulating serum iron concentration and transferrin saturation despite ample iron stores, pointing to a more complex problem related to iron homeostatic regulation and additional factors such as chronic inflammatory status. This review explores our current understanding of iron homeostasis in cancer, shedding light on the modulatory role of hepcidin in intestinal iron absorption, iron recycling, mobilization from liver deposits, and inducible regulators by infections and inflammation. The underlying relationship between CRA and systemic low-grade inflammation will be discussed, and an integrated multitarget approach based on nutrition and exercise to improve iron utilization by reducing low-grade inflammation, modulating the immune response, and supporting antioxidant mechanisms will also be proposed. Indeed, a Mediterranean-based diet, nutritional supplements and exercise are suggested as potential individualized strategies and as a complementary approach to conventional CRA therapy.
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Hussain T, Murtaza G, Yang H, Kalhoro MS, Kalhoro DH. Exploiting Anti-Inflammation Effects of Flavonoids in Chronic Inflammatory Diseases. Curr Pharm Des 2020; 26:2610-2619. [PMID: 32268861 DOI: 10.2174/1381612826666200408101550] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 02/08/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Inflammation is a complex response of the host defense system to different internal and external stimuli. It is believed that persistent inflammation may lead to chronic inflammatory diseases such as, inflammatory bowel disease, neurological and cardiovascular diseases. Oxidative stress is the main factor responsible for the augmentation of inflammation via various molecular pathways. Therefore, alleviating oxidative stress is effective a therapeutic option against chronic inflammatory diseases. METHODS This review article extends the knowledge of the regulatory mechanisms of flavonoids targeting inflammatory pathways in chronic diseases, which would be the best approach for the development of suitable therapeutic agents against chronic diseases. RESULTS Since the inflammatory response is initiated by numerous signaling molecules like NF-κB, MAPK, and Arachidonic acid pathways, their encountering function can be evaluated with the activation of Nrf2 pathway, a promising approach to inhibit/prevent chronic inflammatory diseases by flavonoids. Over the last few decades, flavonoids drew much attention as a potent alternative therapeutic agent. Recent clinical evidence has shown significant impacts of flavonoids on chronic diseases in different in-vivo and in-vitro models. CONCLUSION Flavonoid compounds can interact with chronic inflammatory diseases at the cellular level and modulate the response of protein pathways. A promising approach is needed to overlook suitable alternative compounds providing more therapeutic efficacy and exerting fewer side effects than commercially available antiinflammatory drugs.
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Affiliation(s)
- Tarique Hussain
- Animal Sciences Division, Nuclear Institute for Agriculture and Biology (NIAB), P.O. Box: 128, Jhang Road, Faisalabad, 38000, Pakistan,Pakistan Institute of Engineering and Applied Sciences (PIEAS) Nilore, Islamabad, Pakistan
| | - Ghulam Murtaza
- Shaheed Benazir Bhutto University of Veterinary & Animal Sciences (SBBUVAS), Sakrand, 67210, Sindh, Pakistan
| | - Huansheng Yang
- Hunan International Joint laboratory of Animal Intestinal Ecology and Health, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha, Hunan, 410081, China
| | - Muhammad S Kalhoro
- Food Engineering and Bioprocess Technology, Asian Institute of Technology, Bangkok, 12120, Thailand
| | - Dildar H Kalhoro
- Department of Veterinary Microbiology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh
Agriculture University, Tandojam, Sindh, 70050, Pakistan
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Sakurai K, Shen C, Ezaki Y, Inamura N, Fukushima Y, Masuoka N, Hisatsune T. Effects of Matcha Green Tea Powder on Cognitive Functions of Community-Dwelling Elderly Individuals. Nutrients 2020; 12:nu12123639. [PMID: 33256220 PMCID: PMC7760932 DOI: 10.3390/nu12123639] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/21/2020] [Accepted: 11/24/2020] [Indexed: 12/19/2022] Open
Abstract
Matcha Green Tea Powder contains a variety of active ingredients beneficial to health, such as tea catechins, lutein and vitamin K. It is also known that these ingredients confer benefits upon cognitive functions of elderly people. Therefore, we aimed to investigate the relationship between a daily supplementation of Matcha and the change in cognitive functions of community-dwelling elderly people. A randomized, double-blind, placebo-controlled 12-week trial was performed. Sixty-one participants were recruited and randomly assigned to receive test drink containing 3 g powder from fresh Matcha or placebo powder per day. Changes in cognitive function were assessed utilizing a psychometric test battery. Daily food intake was assessed by a Brief-type Self-administered Diet History Questionnaire (BDHQ). In the gender-specific analysis, a significant cognitive enhancement was observed in the Montreal Cognitive Assessment (MoCA) score in the active group of women. In dietary analysis, we found a significant inverse correlation between consumption of vitamin K in daily diet, excluding test drinks, and change in MoCA. The present study suggests that daily supplementation of Matcha Green Tea Powder has protective effects against cognitive decline in community-dwelling elderly women.
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Affiliation(s)
- Keisuke Sakurai
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8562, Japan; (K.S.); (C.S.); (Y.E.); (N.M.)
| | - Chutong Shen
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8562, Japan; (K.S.); (C.S.); (Y.E.); (N.M.)
| | - Yuri Ezaki
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8562, Japan; (K.S.); (C.S.); (Y.E.); (N.M.)
| | - Noriko Inamura
- Community Health Promotion Laboratory, Mitsui Fudosan, Co., Ltd., Kashiwa 277-8519, Japan;
- Urban Design Center Kashiwanoha (UDCK), Kashiwa 277-0871, Japan
| | - Yoichi Fukushima
- Marketing & Communications Division, Nestle Japan Ltd., Tokyo 140-0002, Japan;
| | - Nobutaka Masuoka
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8562, Japan; (K.S.); (C.S.); (Y.E.); (N.M.)
| | - Tatsuhiro Hisatsune
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8562, Japan; (K.S.); (C.S.); (Y.E.); (N.M.)
- Correspondence: ; Tel.: +81-4-7136-3632
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Zhang T, Chen S, Saito A. A META-ANALYSIS OF THE EFFECTS OF GREEN TEA COMBINED WITH PHYSICAL ACTIVITY ON BLOOD LIPIDS IN HUMANS. REV BRAS MED ESPORTE 2020. [DOI: 10.1590/1517-869220202605212295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Introduction: Most studies of green tea extract (GTE) combined with physical activity have reported a preventative effect for cardiovascular disease; however, the findings regarding the effects on serum lipids are controversial. Objective: This meta-analysis aimed to examine the evidence of the effects of GTE combined with physical activity on the serum lipid content in humans. Methods: In June 2017, we conducted electronic searches of PubMed, Web of Science, and Cochrane Library to identify pertinent studies: those with an experiment period exceeding two weeks, human randomized controlled trials (RCTs), and those that only assessed GTE with physical activity were included. A random effects model meta-analysis was used in this review. Results: A total of 271 citations were retrieved in our search of the electronic literature, and 7 RCTs, which included 608 individuals, were identified. Overall, there was no significant decrease in low-density lipoprotein cholesterol (LDL-C) (SMD:-0.169; 95% confidence interval [CI]:-0.414 to 0.076; I2=22.7%; p=0.177) or total cholesterol (TC) levels between the GTE and placebo combined with the physical activity group. Similar results were also observed for high density-lipoprotein cholesterol (HDL-C) and triglycerides (TG). In the subgroup and sensitivity analyses of the five studies, the TC levels of the subjects who received a lower dose of epigallocatechin gallate (EGCG) together with performing physical activity were significantly decreased. Conclusion: Current evidence suggests that green tea combined with physical activity does not improve the lipid and lipoprotein levels in humans. Level of evidence I; Systematic review.
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A Polyethylene Base Moisture Activating Oxygen Scavenging Film Co-Extruded with Tea Polyphenols-β-Cyclodextrin Inclusion Complex. MATERIALS 2020; 13:ma13173857. [PMID: 32882906 PMCID: PMC7503562 DOI: 10.3390/ma13173857] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 11/28/2022]
Abstract
Antioxidant packaging is an effective method to protect oxygen-sensitive food from oxidation. In order to concurrently obtain a storage stability and excellent oxygen scavenging of antioxidant film for the high moisture food, a moisture activating oxygen scavenging film was prepared by using tea polyphenols as the oxygen scavenger. The moisture activating function was achieved by introducing the β-cyclodextrin embedding technology, and the tea polyphenols–β-cyclodextrin inclusion complex was co-extruded with low-density polyethylene (LDPE) to improve the storage stability. The results indicate that the tea polyphenols is well embedded by β-cyclodextrin according to the Fourier transform infrared spectra (FT-IR), and a relatively homogeneous dispersion of oxygen scavenger is observed while the oxygen scavenger content is less than 5%. The oxygen scavenging increases with the increase of oxygen scavenger from 1% to 5%, and a maximal oxygen absorption of 0.0150 mol/m2 is exhibited at oxygen scavenger content value of 5%. Then, the oxygen scavenging significantly decrease under the oxygen scavenger content of 7% and 10%. Moreover, the oxygen scavenging amount sharply increase after steeping in water or storage in extremely high humidity of RH 84% while the oxygen scavenging is restrained under RH 32–75%, indicating that the moisture activating oxygen scavenging is functioning. The oxygen scavenging is obvious restrained under low temperature of 4 °C while the oxygen scavenging is activated at 23 °C and 50 °C with similar oxygen scavenging amount. Besides, both of the tensile and heat-sealing strength deteriorative with the increase of oxygen scavenger content, while they are acceptable at oxygen scavenger content of 5%. Finally, the prepared oxygen scavenging film was used for packaging orange juice and received a good antioxidant effect. Thus, the acquired moisture activating oxygen scavenging film has a good stability under regular storage condition, and shows a potentially application for oxygen-sensitive food with high moisture content.
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Ho CH, Chu PY, Peng SL, Huang SC, Lin YH. The Development of Hyaluronan/Fucoidan-Based Nanoparticles as Macrophages Targeting an Epigallocatechin-3-Gallate Delivery System. Int J Mol Sci 2020; 21:E6327. [PMID: 32878305 PMCID: PMC7504059 DOI: 10.3390/ijms21176327] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/11/2020] [Accepted: 08/28/2020] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to develop a macrophage-targeted nanoparticle composed of hyaluronan/fucoidan complexes with polyethylene glycol-gelatin to encapsulate and deliver epigallocatechin-3-gallate (EGCG), a compound that can regulate macrophage activation and pro-inflammatory mediator production. We show that our nanoparticles can successfully bond to macrophages and deliver more EGCG than an EGCG solution treatment, confirming the anti-inflammatory effects of these nanoparticles in lipopolysaccharide-stimulated macrophages. The prepared nanoparticles were established with a small mean particle size (217.00 ± 14.00 nm), an acceptable polydispersity index (0.28 ± 0.07), an acceptable zeta potential value (-33.60 ± 1.30 mV), and a high EGCG loading efficiency (52.08% ± 5.37%). The targeting abilities of CD44 binding were increased as the hyaluronan concentration increased and decreased by adding a competitor CD44 antibody. Moreover, we found that fucoidan treatment significantly reduced macrophage migration after lipopolysaccharide treatment in a dose-responsive manner. In summary, we successfully created macrophage-targeted nanoparticles for effective targeted delivery of EGCG, which should aid in the development of future anti-inflammatory drugs against macrophage-related diseases.
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Affiliation(s)
- Chang-Hsun Ho
- Department of Anesthesiology, Show Chwan Memorial Hospital, Changhua 50008, Taiwan;
| | - Pei-Yi Chu
- Faculty of Pharmacy, National Yang-Ming University, Taipei 11221, Taiwan; (P.-Y.C.); (S.-C.H.)
| | - Shin-Lei Peng
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung 40402, Taiwan;
| | - Shun-Chih Huang
- Faculty of Pharmacy, National Yang-Ming University, Taipei 11221, Taiwan; (P.-Y.C.); (S.-C.H.)
| | - Yu-Hsin Lin
- Faculty of Pharmacy, National Yang-Ming University, Taipei 11221, Taiwan; (P.-Y.C.); (S.-C.H.)
- Department of Medical Research, China Medical University, Taichung 404332, Taiwan
- Department and Institute of Pharmacology, Center for Advanced Pharmaceutics and Drug Delivery Research, Institute of Biopharmaceutical Sciences, National Yang-Ming University, Taipei 11221, Taiwan
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Rojo MÁ, Garrosa M, Jiménez P, Girbés T, Garcia-Recio V, Cordoba-Diaz M, Cordoba-Diaz D. Unexpected Toxicity of Green Tea Polyphenols in Combination with the Sambucus RIL Ebulin. Toxins (Basel) 2020; 12:E542. [PMID: 32842591 PMCID: PMC7551510 DOI: 10.3390/toxins12090542] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/12/2020] [Accepted: 08/20/2020] [Indexed: 11/17/2022] Open
Abstract
The safety of concentrated food complements intake is a major health concern. It has been well established that green tea polyphenols (GTPs) consumption promotes healthy effects. However, the ingestion of large amounts of GTPs is a matter of controversy due to reported adverse effects. We underwent a preliminary exploration of the effects of the oral administration of a standardized concentrated GTPs preparation on mice which suffered from reversible intestinal derangement promoted by sublethal amounts of the antiribosomal lectin ebulin f from dwarf elder (Sambucus ebulus L.). Neither independent oral administration of 30 mg/kg body weight Polyphenon 60 nor intraperitoneal administration of 2.5 mg/kg body weight ebulin f triggered lethal toxicity. In contrast, the simultaneous administration of these same doses of both Polyphenon 60 and ebulin f triggered an important and unexpected synergistic toxic action featured by the biphasic reduction of weight, which continued after eight days, reaching a reduction of 40%. Lethality appeared 2 days after the onset of the combined treatment and reached more than 50% after 10 days.
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Affiliation(s)
- M. Ángeles Rojo
- Area of Experimental Sciences, Miguel de Cervantes European University, 47012 Valladolid, Spain;
| | - Manuel Garrosa
- Area of Histology, Faculty of Medicine and INCYL, University of Valladolid, 47005 Valladolid, Spain;
| | - Pilar Jiménez
- Area of Nutrition and Food Sciences, Faculty of Medicine, University of Valladolid, 47005 Valladolid, Spain; (P.J.); (T.G.)
| | - Tomás Girbés
- Area of Nutrition and Food Sciences, Faculty of Medicine, University of Valladolid, 47005 Valladolid, Spain; (P.J.); (T.G.)
| | - Verónica Garcia-Recio
- Area of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, 28040 Madrid, Spain; (V.G.-R.); (M.C.-D.)
| | - Manuel Cordoba-Diaz
- Area of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, 28040 Madrid, Spain; (V.G.-R.); (M.C.-D.)
- University Institute of Industrial Pharmacy (IUFI), Complutense University of Madrid, 28040 Madrid, Spain
| | - Damián Cordoba-Diaz
- Area of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, 28040 Madrid, Spain; (V.G.-R.); (M.C.-D.)
- University Institute of Industrial Pharmacy (IUFI), Complutense University of Madrid, 28040 Madrid, Spain
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Potential Therapeutic Targets of Epigallocatechin Gallate (EGCG), the Most Abundant Catechin in Green Tea, and Its Role in the Therapy of Various Types of Cancer. Molecules 2020; 25:molecules25143146. [PMID: 32660101 PMCID: PMC7397003 DOI: 10.3390/molecules25143146] [Citation(s) in RCA: 144] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 02/07/2023] Open
Abstract
Epigallocatechin-3-gallate (EGCG), an active compound of green tea and its role in diseases cure and prevention has been proven. Its role in diseases management can be attributed to its antioxidant and anti-inflammatory properties. The anti-cancer role of this green tea compound has been confirmed in various types of cancer and is still being under explored. EGCG has been proven to possess a chemopreventive effect through inhibition of carcinogenesis process such as initiation, promotion, and progression. In addition, this catechin has proven its role in cancer management through modulating various cell signaling pathways such as regulating proliferation, apoptosis, angiogenesis and killing of various types of cancer cells. The additive or synergistic effect of epigallocatechin with chemopreventive agents has been verified as it reduces the toxicities and enhances the anti-cancerous effects. Despite its effectiveness and safety, the implications of EGCG in cancer prevention is certainly still discussed due to a poor bioavailability. Several studies have shown the ability to overcome poor bioavailability through nanotechnology-based strategies such as encapsulation, liposome, micelles, nanoparticles and various other formulation. In this review, we encapsulate therapeutic implication of EGCG in cancer management and the mechanisms of action are discussed with an emphasis on human clinical trials.
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The Intrinsic Virtues of EGCG, an Extremely Good Cell Guardian, on Prevention and Treatment of Diabesity Complications. Molecules 2020; 25:molecules25133061. [PMID: 32635492 PMCID: PMC7411588 DOI: 10.3390/molecules25133061] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 12/19/2022] Open
Abstract
The pandemic proportion of diabesity—a combination of obesity and diabetes—sets a worldwide health issue. Experimental and clinical studies have progressively reinforced the pioneering epidemiological observation of an inverse relationship between consumption of polyphenol-rich nutraceutical agents and mortality from cardiovascular and metabolic diseases. With chemical identification of epigallocatechin-3-gallate (EGCG) as the most abundant catechin of green tea, a number of cellular and molecular mechanisms underlying the activities of this unique catechin have been proposed. Favorable effects of EGCG have been initially attributed to its scavenging effects on free radicals, inhibition of ROS-generating mechanisms and upregulation of antioxidant enzymes. Biologic actions of EGCG are concentration-dependent and under certain conditions EGCG may exert pro-oxidant activities, including generation of free radicals. The discovery of 67-kDa laminin as potential EGCG membrane target has broaden the likelihood that EGCG may function not only because of its highly reactive nature, but also via receptor-mediated activation of multiple signaling pathways involved in cell proliferation, angiogenesis and apoptosis. Finally, by acting as epigenetic modulator of DNA methylation and chromatin remodeling, EGCG may alter gene expression and modify miRNA activities. Despite unceasing research providing detailed insights, ECGC composite activities are still not completely understood. This review summarizes the most recent evidence on molecular mechanisms by which EGCG may activate signal transduction pathways, regulate transcription factors or promote epigenetic changes that may contribute to prevent pathologic processes involved in diabesity and its cardiovascular complications.
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Goodlett CR, Stringer M, LaCombe J, Patel R, Wallace JM, Roper RJ. Evaluation of the therapeutic potential of Epigallocatechin-3-gallate (EGCG) via oral gavage in young adult Down syndrome mice. Sci Rep 2020; 10:10426. [PMID: 32591597 PMCID: PMC7319987 DOI: 10.1038/s41598-020-67133-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/29/2020] [Indexed: 01/09/2023] Open
Abstract
Epigallocatechin-3-gallate (EGCG) is a candidate therapeutic for Down syndrome (DS) phenotypes based on in vitro inhibition of DYRK1A, a triplicated gene product of Trisomy 21 (Ts21). Consumption of green tea extracts containing EGCG improved some cognitive and behavioral outcomes in DS mouse models and in humans with Ts21. In contrast, treatment with pure EGCG in DS mouse models did not improve neurobehavioral phenotypes. This study tested the hypothesis that 200 mg/kg/day of pure EGCG, given via oral gavage, would improve neurobehavioral and skeletal phenotypes in the Ts65Dn DS mouse model. Serum EGCG levels post-gavage were significantly higher in trisomic mice than in euploid mice. Daily EGCG gavage treatments over three weeks resulted in growth deficits in both euploid and trisomic mice. Compared to vehicle treatment, EGCG did not significantly improve behavioral performance of Ts65Dn mice in the multivariate concentric square field, balance beam, or Morris water maze tasks, but reduced swimming speed. Furthermore, EGCG resulted in reduced cortical bone structure and strength in Ts65Dn mice. These outcomes failed to support the therapeutic potential of EGCG, and the deleterious effects on growth and skeletal phenotypes underscore the need for caution in high-dose EGCG supplements as an intervention in DS.
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Affiliation(s)
- Charles R Goodlett
- IUPUI Department of Psychology, 402 North Blackford Street, LD 124, Indianapolis, IN, 46202-3275, USA
| | - Megan Stringer
- IUPUI Department of Psychology, 402 North Blackford Street, LD 124, Indianapolis, IN, 46202-3275, USA
| | - Jonathan LaCombe
- IUPUI Department of Biology, 723 West Michigan Street; SL 306, Indianapolis, IN, 46202-3275, USA
| | - Roshni Patel
- IUPUI Department of Biology, 723 West Michigan Street; SL 306, Indianapolis, IN, 46202-3275, USA
| | - Joseph M Wallace
- IUPUI Department of Biomedical Engineering, 723 West Michigan Street; SL 220B, Indianapolis, IN, 46202-3275, USA
| | - Randall J Roper
- IUPUI Department of Biology, 723 West Michigan Street; SL 306, Indianapolis, IN, 46202-3275, USA.
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Aarthy M, Panwar U, Singh SK. Structural dynamic studies on identification of EGCG analogues for the inhibition of Human Papillomavirus E7. Sci Rep 2020; 10:8661. [PMID: 32457393 PMCID: PMC7250877 DOI: 10.1038/s41598-020-65446-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 05/04/2020] [Indexed: 02/04/2023] Open
Abstract
High risk human papillomaviruses are highly associated with the cervical carcinoma and the other genital tumors. Development of cervical cancer passes through the multistep process initiated from benign cyst to increasingly severe premalignant dysplastic lesions in an epithelium. Replication of this virus occurs in the fatal differentiating epithelium and involves in the activation of cellular DNA replication proteins. The oncoprotein E7 of human papillomavirus expressed in the lower epithelial layers constrains the cells into S-phase constructing an environment favorable for genome replication and cell proliferation. To date, no suitable drug molecules exist to treat HPV infection whereas anticipation of novel anti-HPV chemotherapies with distinctive mode of actions and identification of potential drugs are crucial to a greater extent. Hence, our present study focused on identification of compounds analogue to EGCG, a green tea molecule which is considered to be safe to use for mammalian systems towards treatment of cancer. A three dimensional similarity search on the small molecule library from natural product database using EGCG identified 11 potential small molecules based on their structural similarity. The docking strategies were implemented with acquired small molecules and identification of the key interactions between protein and compounds were carried out through binding free energy calculations. The conformational changes between the apoprotein and complexes were analyzed through simulation performed thrice demonstrating the dynamical and structural effects of the protein induced by the compounds signifying the domination. The analysis of the conformational stability provoked us to describe the features of the best identified small molecules through electronic structure calculations. Overall, our study provides the basis for structural insights of the identified potential identified small molecules and EGCG. Hence, the identified analogue of EGCG can be potent inhibitors against the HPV 16 E7 oncoprotein.
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Affiliation(s)
- Murali Aarthy
- Computer Aided Drug Design and Molecular Modeling Lab, Department of Bioinformatics, Alagappa University, Karaikudi, 630004, India
| | - Umesh Panwar
- Computer Aided Drug Design and Molecular Modeling Lab, Department of Bioinformatics, Alagappa University, Karaikudi, 630004, India
| | - Sanjeev Kumar Singh
- Computer Aided Drug Design and Molecular Modeling Lab, Department of Bioinformatics, Alagappa University, Karaikudi, 630004, India.
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Aggarwal V, Tuli HS, Tania M, Srivastava S, Ritzer EE, Pandey A, Aggarwal D, Barwal TS, Jain A, Kaur G, Sak K, Varol M, Bishayee A. Molecular mechanisms of action of epigallocatechin gallate in cancer: Recent trends and advancement. Semin Cancer Biol 2020; 80:256-275. [PMID: 32461153 DOI: 10.1016/j.semcancer.2020.05.011] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/08/2020] [Accepted: 05/17/2020] [Indexed: 12/22/2022]
Abstract
Epigallocatechin gallate (EGCG), also known as epigallocatechin-3-gallate, is an ester of epigallocatechin and gallic acid. EGCG, abundantly found in tea, is a polyphenolic flavonoid that has the potential to affect human health and disease. EGCG interacts with various recognized cellular targets and inhibits cancer cell proliferation by inducing apoptosis and cell cycle arrest. In addition, scientific evidence has illustrated the promising role of EGCG in inhibiting tumor cell metastasis and angiogenesis. It has also been found that EGCG may reverse drug resistance of cancer cells and could be a promising candidate for synergism studies. The prospective importance of EGCG in cancer treatment is owed to its natural origin, safety, and low cost which presents it as an attractive target for further development of novel cancer therapeutics. A major challenge with EGCG is its low bioavailability which is being targeted for improvement by encapsulating EGCG in nano-sized vehicles for further delivery. However, there are major limitations of the studies on EGCG, including study design, experimental bias, and inconsistent results and reproducibility among different study cohorts. Additionally, it is important to identify specific EGCG pharmacological targets in the tumor-specific signaling pathways for development of novel combined therapeutic treatments with EGCG. The present review highlights the ongoing development to identify cellular and molecular targets of EGCG in cancer. Furthermore, the role of nanotechnology-mediated EGCG combinations and delivery systems will also be discussed.
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Affiliation(s)
- Vaishali Aggarwal
- Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh 160 012, Punjab, India
| | - Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala 133 207, Haryana, India.
| | - Mousumi Tania
- Division of Molecular Cancer, Red Green Research Center, Dhaka 1205, Bangladesh
| | - Saumya Srivastava
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211 004, Uttar Pradesh, India
| | - Erin E Ritzer
- Lake Erie College of Osteopathic Medicine, Bradenton 34211, FL, USA
| | - Anjana Pandey
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211 004, Uttar Pradesh, India
| | - Diwakar Aggarwal
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala 133 207, Haryana, India
| | - Tushar Singh Barwal
- Department of Zoology, Central University of Punjab, Bathinda 151 001, Punjab, India
| | - Aklank Jain
- Department of Zoology, Central University of Punjab, Bathinda 151 001, Punjab, India
| | - Ginpreet Kaur
- Department of Pharmacology, Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, Mumbai 400 056, Maharastra, India
| | | | - Mehmet Varol
- Department of Molecular Biology and Genetics, Faculty of Science, Mugla Sitki Kocman University, Muğla TR48000, Turkey
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton 34211, FL, USA.
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He Y, Lin Y, Li Q, Gu Y. The contribution ratio of various characteristic tea compounds in antioxidant capacity by DPPH assay. J Food Biochem 2020; 44:e13270. [PMID: 32394493 DOI: 10.1111/jfbc.13270] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 03/09/2020] [Accepted: 03/09/2020] [Indexed: 01/24/2023]
Abstract
Tea is a worldwide health beneficial beverage for its antioxidant ability. 1,1-diphenyl-2-picryl-hydrazyl (DPPH) assay is a common method to measure the antioxidant capacity of tea compounds, yet the contribution ratio of various characteristic tea compounds is still unclear. high-performance liquid chromatography (HPLC) was used to examine the content of polyphenol compounds in 24 tea samples from four tea categories (green tea, white tea, oolong tea, and black tea). Based on the results of DPPH and HPLC, contribution ratio of each tea compound was analyzed by the Pearson correlation analysis and the partial least squares regression (PLSR). The Pearson correlation analysis showed that the order of correlation between the area of 13 peaks and the antioxidant ability of tea samples was x8 > x6 > x3 > x13 > x10 > x7 > x2 > x5 > x11 > x9 > x4 > x12 > x1; the regression equation fit by PLSR was Y = 47.258 - 0.760x1 + 0.287x2 - 1.484x3 - 0.569x4 + 0.674x5 + 2.257x6 + 1.698x7 + 1.389x8 - 0.188x9 + 0.467x10 + 0.297x11 + 1.314x12 + 0.963x13. We identified nine common peaks by reference standard substances: the x3 was gallic acid (GA), x4 was theobromine, x5 was catechuic acid (CA), x6 was epigallocatechin (EGC), x8 was epigallocatechin gallate (EGCG), x9 was caffeine, x10 was epicatechin (EC), x12 was epicatechin gallate (ECG), and x13 was gallocatechin gallate (GCG). Based on the study of spectrum-effect correlation, we obtain a better understanding of the antioxidant activity of complex tea polyphenols component. PRACTICAL APPLICATIONS: Identify the contribution of specific chemical compound to antioxidant activity by the coefficients in PLSR equation and provide a deeper insight into the joint effect of multiple ingredients of tea. Further, we can infer the DPPH free radical scavenging ability of a new kind of tea by the PLSR equation without chemical detection.
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Affiliation(s)
- Yansu He
- School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, P.R. China.,School of Public Health, Zhejiang University, Hangzhou, P.R. China
| | - Yong Lin
- College of Electrical Engineering, Zhejiang University, Hangzhou, P.R. China
| | - Qingsheng Li
- Zhejiang University Tea Research Institute, Hangzhou, P.R. China
| | - Yuxuan Gu
- School of Public Health, Zhejiang University, Hangzhou, P.R. China
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Chen JD, Zheng C, Ma JQ, Jiang CK, Ercisli S, Yao MZ, Chen L. The chromosome-scale genome reveals the evolution and diversification after the recent tetraploidization event in tea plant. HORTICULTURE RESEARCH 2020; 7:63. [PMID: 32377354 PMCID: PMC7192901 DOI: 10.1038/s41438-020-0288-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/02/2020] [Accepted: 03/08/2020] [Indexed: 05/07/2023]
Abstract
Tea is one of the most popular nonalcoholic beverages due to its characteristic secondary metabolites with numerous health benefits. Although two draft genomes of tea plant (Camellia sinensis) have been published recently, the lack of chromosome-scale assembly hampers the understanding of the fundamental genomic architecture of tea plant and potential improvement. Here, we performed a genome-wide chromosome conformation capture technique (Hi-C) to obtain a chromosome-scale assembly based on the draft genome of C. sinensis var. sinensis and successfully ordered 2984.7 Mb (94.7%) scaffolds into 15 chromosomes. The scaffold N50 of the improved genome was 218.1 Mb, ~157-fold higher than that of the draft genome. Collinearity comparison of genome sequences and two genetic maps validated the high contiguity and accuracy of the chromosome-scale assembly. We clarified that only one Camellia recent tetraploidization event (CRT, 58.9-61.7 million years ago (Mya)) occurred after the core-eudicot common hexaploidization event (146.6-152.7 Mya). Meanwhile, 9243 genes (28.6%) occurred in tandem duplication, and most of these expanded after the CRT event. These gene duplicates increased functionally divergent genes that play important roles in tea-specific biosynthesis or stress response. Sixty-four catechin- and caffeine-related quantitative trait loci (QTLs) were anchored to chromosome assembly. Of these, two catechin-related QTL hotspots were derived from the CRT event, which illustrated that polyploidy has played a dramatic role in the diversification of tea germplasms. The availability of a chromosome-scale genome of tea plant holds great promise for the understanding of genome evolution and the discovery of novel genes contributing to agronomically beneficial traits in future breeding programs.
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Affiliation(s)
- Jie-Dan Chen
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute of the Chinese Academy of Agricultural Science, Hangzhou, 310008 China
| | - Chao Zheng
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute of the Chinese Academy of Agricultural Science, Hangzhou, 310008 China
| | - Jian-Qiang Ma
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute of the Chinese Academy of Agricultural Science, Hangzhou, 310008 China
| | - Chen-Kai Jiang
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute of the Chinese Academy of Agricultural Science, Hangzhou, 310008 China
| | - Sezai Ercisli
- Department of Horticulture, Faculty of Agriculture, Ataturk University, Erzurum, Turkey
| | - Ming-Zhe Yao
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute of the Chinese Academy of Agricultural Science, Hangzhou, 310008 China
| | - Liang Chen
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute of the Chinese Academy of Agricultural Science, Hangzhou, 310008 China
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Ferreira MCL, Lima LN, Cota LHT, Costa MB, Orsi PME, Espíndola RP, Albanez AV, Rosa BB, Carvalho MGS, Garcia JAD. Effect of Camellia sinensis teas on left ventricular hypertrophy and insulin resistance in dyslipidemic mice. ACTA ACUST UNITED AC 2020; 53:e9303. [PMID: 32348424 PMCID: PMC7197649 DOI: 10.1590/1414-431x20209303] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 02/13/2020] [Indexed: 11/30/2022]
Abstract
The control of dyslipidemia using plants is an important subject of studies since it has numerous benefits in cardiovascular protection. The objective of this study was to evaluate the effect of three Camellia sinensis L. teas (green, red, and white) on left ventricular hypertrophy and insulin resistance in low-density lipoprotein receptor knockout (LDLr-/-) mice fed a high-fat diet. The LDLr-/- mice were divided into four experimental groups: Group C: standard feed; Group CT: standard feed and three teas, Group HL: high-fat feed; HLT Group: high-fat feed and three teas. The three types of tea (green, red, and white) originated from different processing of the Camellia sinensis L. plant, and were administered associated once a day at a dose of 25 mg/kg by gavage for 60 days. The teas partially prevented hyperlipidemia, the decrease of the serum levels of high-density lipoproteins (HDL), insulin resistance, and increased C-reactive protein (CRP) levels, and completely prevented left ventricular hypertrophy in LDLr -/- mice of the HLT group. In conclusion, the three Camellia sinensis L. teas used to control genetic dyslipidemia associated with a high-fat diet can be used as an auxiliary treatment associated with the control of lipid intake, thus promoting cardiac protection against hyperlipidemia.
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Affiliation(s)
- M C L Ferreira
- Faculdade de Medicina, Universidade José do Rosário Vellano, Alfenas, MG, Brasil
| | - L N Lima
- Faculdade de Medicina, Universidade José do Rosário Vellano, Alfenas, MG, Brasil
| | - L H T Cota
- Faculdade de Medicina, Universidade José do Rosário Vellano, Alfenas, MG, Brasil
| | - M B Costa
- Faculdade de Medicina, Universidade José do Rosário Vellano, Alfenas, MG, Brasil
| | - P M E Orsi
- Faculdade de Medicina, Universidade José do Rosário Vellano, Alfenas, MG, Brasil
| | - R P Espíndola
- Faculdade de Medicina, Universidade José do Rosário Vellano, Alfenas, MG, Brasil
| | - A V Albanez
- Faculdade de Biomedicina, Universidade José do Rosário Vellano, Alfenas, MG, Brasil
| | - B B Rosa
- Faculdade de Educação Fisíca, Universidade José do Rosário Vellano, Alfenas, MG, Brasil
| | - M G S Carvalho
- Curso de Ciências Biológicas, Instituto Federal do Sul de Minas, Machado, MG, Brasil
| | - J A D Garcia
- Faculdade de Medicina, Universidade José do Rosário Vellano, Alfenas, MG, Brasil
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Ambigaipalan P, Oh WY, Shahidi F. Epigallocatechin (EGC) esters as potential sources of antioxidants. Food Chem 2020; 309:125609. [DOI: 10.1016/j.foodchem.2019.125609] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 09/05/2019] [Accepted: 09/28/2019] [Indexed: 12/22/2022]
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Ravindran R, Jaganathan R, Periandavan K. EGCG exerts its protective effect by mitigating the release of lysosomal enzymes in aged rat liver on exposure to high cholesterol diet. Cell Biochem Funct 2020; 38:309-318. [PMID: 31926118 DOI: 10.1002/cbf.3490] [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: 09/22/2019] [Revised: 11/30/2019] [Accepted: 12/12/2019] [Indexed: 11/09/2022]
Abstract
The aim is to test the hypothesis whether the cholesterol loaded lysosomes are capable of mediating lysosomal membrane permeabilization (LMP) during aging and to study the efficacy of epigallocatechin-3-gallate (EGCG) in preserving the lysosomal membrane stability. Aged rats were fed with high cholesterol diet (HCD) and treated with EGCG orally. Serum and tissue lipid status, cholesterol levels in lysosomal fraction, activities of lysosomal enzymes in lysosomal, and cytosolic fractions were measured. Transmission electron microscopic studies (TEM), oil red "O" (ORO) staining, and immunohistochemical analysis of oxidized low density lipoprotein (OxLDL) were carried out. Significant increase in serum, tissue lipid profile, and lysosomal cholesterol levels were observed in aged HCD-fed rats with a concomitant decrease in high density lipoprotein (HDL) levels. We also observed a significant increase in lipid accumulation in hepatocytes of aged HCD-fed rats by TEM, ORO, and immunohistochemical staining. Upon treatment with EGCG to aged HCD-fed animals, we found augmented levels of HDL with a concomitant decrease in lysosomal cholesterol levels and other lipoproteins. TEM studies and immunohistochemistry of OxLDL also showed a marked reduction in lipid deposition of hepatocytes. Thus, EGCG has preserved the lysosomal membrane stability in HCD stressed aged rats. SIGNIFICANCE OF THE STUDY: The research article is focused mainly on the effect of EGCG and its capability on mitigating the release of lysosomal enzymes in aged animals fed with HCD. The study signifies the cellular function of the organelle lysosome following administration of aged rats with HCD, which would make the readers to understand the action of EGCG and the interrelationship of both cholesterol and activity of lysosomes when cholesterol is loaded.
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Affiliation(s)
- Rajeswari Ravindran
- Department of Medical Biochemistry, DR ALM PG IBMS, University of Madras, Chennai, India
| | - Ravindran Jaganathan
- Preclinical Department, Faculty of Medicine, Universiti Kuala Lumpur Royal College of Medicine Perak, Ipoh, Malaysia
| | - Kalaiselvi Periandavan
- Department of Medical Biochemistry, DR ALM PG IBMS, University of Madras, Chennai, India
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From tea to treatment; epigallocatechin gallate and its potential involvement in minimizing the metabolic changes in cancer. Nutr Res 2019; 74:23-36. [PMID: 31918176 DOI: 10.1016/j.nutres.2019.12.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 12/02/2019] [Accepted: 12/06/2019] [Indexed: 01/09/2023]
Abstract
As the most abundant bioactive polyphenol in green tea, epigallocatechin gallate (EGCG) is a promising natural product that should be used in the discovery and development of potential drug leads. Due to its association with chemoprevention, EGCG may find a role in the development of therapeutics for prostate cancer. Natural products have long been used as a scaffold for drug design, as their already noted bioactivity can help accelerate the development of novel treatments. Green tea and the EGCG contained within have become associated with chemoprevention, and both in vitro and in vivo studies have correlated EGCG to inhibiting cell growth and increasing the metabolic stress of cancer cells, possibly giving merit to its long utilized therapeutic use in traditional therapies. There is accumulating evidence to suggest EGCG's role as an inhibitor of the phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin signaling cascade, acting upon major axis points within cancer survival pathways. The purpose of this review is to examine the research conducted on tea along with EGCG in the areas of the treatment of and/or prevention of cancer. This review discusses Camellia sinensis as well as the bioactive phytochemical compounds contained within. Clinical uses of tea are explored, and possible pathways for activity are discussed before examining the evidence for EGCG's potential for acting on these processes. EGCG is identified as being a possible lead phytochemical for future drug design investigations.
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Quan Y, Li L, Dong L, Wang S, Jiang X, Zhang T, Jin P, Fan J, Mao S, Fan X, Gong Y, Wang Y. Epigallocatechin-3-gallate (EGCG) inhibits aggregation of pulmonary fibrosis associated mutant surfactant protein A2 via a proteasomal degradation pathway. Int J Biochem Cell Biol 2019; 116:105612. [DOI: 10.1016/j.biocel.2019.105612] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 08/16/2019] [Accepted: 09/15/2019] [Indexed: 11/30/2022]
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Bonuccelli G, Sotgia F, Lisanti MP. Matcha green tea (MGT) inhibits the propagation of cancer stem cells (CSCs), by targeting mitochondrial metabolism, glycolysis and multiple cell signalling pathways. Aging (Albany NY) 2019; 10:1867-1883. [PMID: 30153655 PMCID: PMC6128439 DOI: 10.18632/aging.101483] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/21/2018] [Indexed: 12/21/2022]
Abstract
Matcha green tea (MGT) is a natural product that is currently used as a dietary supplement and may have significant anti-cancer properties. However, the molecular mechanism(s) underpinning its potential health benefits remain largely unknown. Here, we used MCF7 cells (an ER(+) human breast cancer cell line) as a model system, to systematically dissect the effects of MGT at the cellular level, via i) metabolic phenotyping and ii) unbiased proteomics analysis. Our results indicate that MGT is indeed sufficient to inhibit the propagation of breast cancer stem cells (CSCs), with an IC-50 of ~0.2 mg/ml, in tissue culture. Interestingly, metabolic phenotyping revealed that treatment with MGT is sufficient to suppress both oxidative mitochondrial metabolism (OXPHOS) and glycolytic flux, shifting cancer cells towards a more quiescent metabolic state. Unbiased label-free proteomics analysis identified the specific mitochondrial proteins and glycolytic enzymes that were down-regulated by MGT treatment. Moreover, to discover the underlying signalling pathways involved in this metabolic shift, we subjected our proteomics data sets to bio-informatics interrogation via Ingenuity Pathway Analysis (IPA) software. Our results indicate that MGT strongly affected mTOR signalling, specifically down-regulating many components of the 40S ribosome. This raises the intriguing possibility that MGT can be used as inhibitor of mTOR, instead of chemical compounds, such as rapamycin. In addition, other key pathways were affected, including the anti-oxidant response, cell cycle regulation, as well as interleukin signalling. Our results are consistent with the idea that MGT may have significant therapeutic potential, by mediating the metabolic reprogramming of cancer cells.
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Affiliation(s)
- Gloria Bonuccelli
- Translational Medicine, School of Environment and Life Sciences, Biomedical Research Centre, University of Salford, Greater Manchester, United Kingdom
| | - Federica Sotgia
- Translational Medicine, School of Environment and Life Sciences, Biomedical Research Centre, University of Salford, Greater Manchester, United Kingdom
| | - Michael P Lisanti
- Translational Medicine, School of Environment and Life Sciences, Biomedical Research Centre, University of Salford, Greater Manchester, United Kingdom
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Abstract
Metastasis of cells from primary site to distant organs involves a series of sequential steps, and molecules responsible for all these events are understandably considered as potential targets for metastasis management. Tea polyphenols, the secondary metabolites of the tea leaf Camellia sinensis, are increasingly being studied for their antimetastatic properties. In this article, effects of green tea polyphenols (GTP) and black tea polyphenols (BTP) on the molecules and events involved in metastasis are discussed in detail. As tea is a very popular beverage, tea polyphenols are expected to be potential chemopreventive agents that can be taken with normal diet and can be nontoxic due to their natural origin. However, individual variations in metabolic pathways, bioavailability, dose, and toxicity are some important factors that can modify the effectiveness of tea polyphenols within the human system.
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Affiliation(s)
- Niladri Bag
- Department of Horticulture, Sikkim University, Gangtok, India
| | - Arundhati Bag
- Department of Medical Biotechnology, Sikkim Manipal Institute of Medical Sciences, Sikkim Manipal University, Gangtok, India
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Pandit AP, Joshi SR, Dalal PS, Patole VC. Curcumin as a permeability enhancer enhanced the antihyperlipidemic activity of dietary green tea extract. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:129. [PMID: 31196040 PMCID: PMC6567481 DOI: 10.1186/s12906-019-2545-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 06/03/2019] [Indexed: 02/06/2023]
Abstract
Background Green tea has polyphenols like flavonoids and catechins; mainly epigallocatechin-3-gallate (EGCG), epicatechin gallate (ECG), epigallocatechin (EGC) and epicatechin (EC), out of which EGCG is of higher abundance. EGCG has shown preventive role in hypercholesterolemia. However, due to low oral bioavailability, a need arises to improve its membrane permeability and transporter-mediated intestinal efflux. Therefore, an attempt was made to enhance permeability and bioavailability of EGCG using curcumin to treat hyperlipidemia. Further, it was formulated in herbal tea bags to achieve patient compliance. Methods EGCG extracted from green tea leaves was confirmed by High Performance Thin Layer Chromatography. Green tea extract (GTE), curcumin and their mixtures were subjected to Fourier Transform Infra-Red spectroscopy and Differential Scanning Calorimetry for compatibility studies. Powder formulation was prepared comprising GTE, curcumin, sucralose and cardamom. Results Ex-vivo study was performed on everted goat intestine, analyzed by HPLC and demonstrated highest permeation of GTE:curcumin (220:50) (53.15%) than GTE (20.57%). Antihyperlipidemic activity was performed in rats for 15 days. Blood sample analysis of rats of test groups (formulation and GTE solution) fed on high fat diet showed (mg/dl):cholesterol 80 and 90, triglycerides 73.25 and 85.5, HDL 50.75 and 46, LDL 43.9 and 46, VLDL 14.65 and 17.1 respectively with significant lipid regulating effect. Conclusion Curcumin enhanced permeability of EGCG. Therefore, P-glycoprotein pump inside intestine can be potential mechanism to enhance permeability of EGCG. Thus, EGCG-curcumin herbal tea bag is promising nutraceutical to treat hyperlipidemia in day-to-day life achieving patient compliance.
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Fang J, Sureda A, Silva AS, Khan F, Xu S, Nabavi SM. Trends of tea in cardiovascular health and disease: A critical review. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.04.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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50
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Anti-cancer effects of polyphenols via targeting p53 signaling pathway: updates and future directions. Biotechnol Adv 2019; 38:107385. [PMID: 31004736 DOI: 10.1016/j.biotechadv.2019.04.007] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 04/14/2019] [Accepted: 04/16/2019] [Indexed: 02/06/2023]
Abstract
The anticancer effects of polyphenols are ascribed to several signaling pathways including the tumor suppressor gene tumor protein 53 (p53). Expression of endogenous p53 is silent in various types of cancers. A number of polyphenols from a wide variety of dietary sources could upregulate p53 expression in several cancer cell lines through distinct mechanisms of action. The aim of this review is to focus the significance of p53 signaling pathways and to provide molecular intuitions of dietary polyphenols in chemoprevention by monitoring p53 expression that have a prominent role in tumor suppression.
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