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Hao F, Deng X, Yu X, Wang W, Yan W, Zhao X, Wang X, Bai C, Wang Z, Han L. Taraxacum: A Review of Ethnopharmacology, Phytochemistry and Pharmacological Activity. Am J Chin Med 2024; 52:183-215. [PMID: 38351703 DOI: 10.1142/s0192415x24500083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Taraxacum refers to the genus Taraxacum, which has a long history of use as a medicinal plant and is widely distributed around the world. There are over 2500 species in the genus Taraxacum recorded as medicinal plants in China, Central Asia, Europe, and the Americas. It has traditionally been used for detoxification, diuresis, liver protection, the treatment of various inflammations, antimicrobial properties, and so on. We used the most typically reported Taraxacum officinale as an example and assembled its chemical makeup, including sesquiterpene, triterpene, steroids, flavone, sugar and its derivatives, phenolic acids, fatty acids, and other compounds, which are also the material basis for its pharmacological effects. Pharmacological investigations have revealed that Taraxacum crude extracts and chemical compounds contain antimicrobial infection, anti-inflammatory, antitumor, anti-oxidative, liver protective, and blood sugar and blood lipid management properties. These findings adequately confirm the previously described traditional uses and aid in explaining its therapeutic applications.
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Affiliation(s)
- Fusheng Hao
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, P. R. China
| | - Xinxin Deng
- Department of Integration of Chinese and Western Medicine, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, Peking University Cancer Hospital & Institute, Beijing 100142, P. R. China
| | - Xin Yu
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, P. R. China
- Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, P. R. China
| | - Wen Wang
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, P. R. China
| | - Wei Yan
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, P. R. China
| | - Xi Zhao
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, P. R. China
| | - Xiaofei Wang
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, P. R. China
| | - Changcai Bai
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, P. R. China
- Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, P. R. China
| | - Zhizhong Wang
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, P. R. China
- Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, P. R. China
| | - Lu Han
- School of Pharmacy, Ningxia Medical University, Yinchuan 750004, P. R. China
- Key Laboratory of Ningxia Ethnomedicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, P. R. China
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Irondi EA, Bankole AO, Awoyale W, Ajani EO, Alamu EO. Antioxidant, enzymes inhibitory, physicochemical and sensory properties of instant bio-yoghurts containing multi-purpose natural additives. Front Nutr 2024; 10:1340679. [PMID: 38274204 PMCID: PMC10808348 DOI: 10.3389/fnut.2023.1340679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 12/28/2023] [Indexed: 01/27/2024] Open
Abstract
This study aimed to assess the antioxidant, enzyme inhibitory, physicochemical and sensory properties of instant bio-yoghurts containing multi-purpose natural additives. Multi-purpose natural additives were formulated with three natural additives (sweet detar seed, ginger rhizome, and hibiscus calyx flours, as a thickener, flavourant and colourant, respectively) blends at proportions derived from the Design Expert. The additives' synthetic counterparts were formulated with sodium carboxymethylcellulose, vanilla flavor, and red colourant at the same proportions. After that, yoghurt was produced and the additives blends were incorporated into it either in aqueous extract or flour form, yielding bio-yoghurts designated multi-purpose natural additive extract-containing yoghurt (MNAE-yoghurt), multi-purpose natural additive flour-added yoghurt (MNAF-yoghurt), and their multi-purpose synthetic additives-containing counterparts (MSAE-yoghurt and MSAF-yoghurt). A commercially-available bio-yoghurt served as a control. All the yoghurts were lyophilized to obtain instant bio-yoghurts. Subsequently, bioactive components (total phenolics, tannins, total flavonoids and saponins), antioxidants and enzymes [alpha-amylase, alpha-glucosidase, pancreatic lipase, and angiotensin 1-converting enzyme (ACE)] inhibitory activities, as well as proximate, physicochemical and sensory qualities of the bio-yoghurts were determined. The MNAE-yoghurt and MNAF-yoghurt had higher bioactive constituents, total titratable acid levels, and more potent antioxidant and enzyme inhibitory properties, but a lower pH than their synthetic counterparts and the control. The total phenolics, tannins, total flavonoids and saponins levels of MNAE-yoghurt and MNAF-yoghurt were 14.40 ± 0.24 and 16.54 ± 0.62 mg/g, 1.65 ± 0.04 and 1.74 ± 0.08 mg/g, 4.25 ± 0.03 and 4.40 ± 0.02 mg/g, 0.64 ± 0.01 and 0.66 ± 0.02 mg/g, respectively. Among the natural multi-purpose additives-containing bio-yoghurts, MNAF-yoghurt had higher bioactive constituents and stronger antioxidant and enzymes inhibitory properties. Its α-amylase, α-glucosidase, ACE, and pancreatic lipase IC50 values were 72.47 ± 0.47, 74.07 ± 0.02, 25.58 ± 2.58, and 33.56 ± 29.66 μg/mL, respectively. In contrast, MNAE-yoghurt had the highest protein (13.70 ± 0.85%) and the lowest fat (2.63 ± 0.71%) contents. The sensory attributes of all the bio-yoghurts fell within an acceptable likeness range. Overall, the inclusion of multi-purpose natural additives blends enhanced the instant bio-yoghurts' nutritional, health-promoting, and sensory qualities.
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Affiliation(s)
| | | | - Wasiu Awoyale
- Department of Food Science and Technology, Kwara State University, Ilorin, Nigeria
| | | | - Emmanuel Oladeji Alamu
- Food and Nutrition Sciences Laboratory, International Institute of Tropical Agriculture, Oyo, Nigeria
- Food and Nutrition Sciences Laboratory, International Institute of Tropical Agriculture, Southern Africa Research and Administration Hub (SARAH), Lusaka, Zambia
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Mahdy NE, Abdel-Baki PM, El-Rashedy AA, Ibrahim RM. Modulatory Effect of Pyrus pyrifolia Fruit and its Phenolics on Key Enzymes against Metabolic Syndrome: Bioassay-Guided Approach, HPLC Analysis, and In Silico Study. Plant Foods Hum Nutr 2023:10.1007/s11130-023-01069-3. [PMID: 37219720 PMCID: PMC10363080 DOI: 10.1007/s11130-023-01069-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Accepted: 04/29/2023] [Indexed: 05/24/2023]
Abstract
This study aims to isolate the active constituents of Pyrus pyrifolia Nakai fruits using a bioassay-guided fractionation approach, test their activity in vitro against key enzymes for metabolic disorders, and support it with molecular docking simulations. The antioxidant potential of the methanolic extract (ME), its polar (PF), and non-polar fractions (NPF), along with the inhibitory activity against α-glucosidase, α-amylase, lipase, angiotensin I converting enzyme (ACE), renin, inducible nitric oxide synthase (iNOS), and xanthine oxidase (XO) were assessed. The PF exhibited the highest antioxidant and enzyme inhibitory activity. Purification of PF yielded rutin, isoquercitrin, isorhamnetin-3-O-β-D-glucoside, chlorogenic acid, quercetin, and cinnamic acid. HPLC-UV analysis of the PF allowed for the quantification of 15 phenolic compounds, including the isolated compounds. Cinnamic acid was the most powerful antioxidant in all assays and potent enzyme inhibitor against the tested enzymes (α-glucosidase, α-amylase, lipase, ACE, renin, iNOS, and XO). Additionally, it showed high affinity to target α-glucosidase and ACE active sites with high docking scores (calculated total binding free energy (ΔGbind) -23.11 kcal/mol and - 20.03 kcal/mol, respectively]. A 20-ns molecular dynamics simulation using MM-GBSA analysis revealed a stable conformation and binding patterns in a stimulating environment of cinnamic acid. Interestingly, the isolated compounds' dynamic investigations including RMSD, RMSF, and Rg demonstrated a stable ligand - protein complex to the active site of iNOS with ΔGbind ranging from - 68.85 kcal/mol to -13.47 kcal/mol. These findings support the notion that P. pyrifolia fruit is a functional food with multifactorial therapeutic agents against metabolic syndrome-associated diseases.
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Affiliation(s)
- Nariman E Mahdy
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr-El-Ainy Street, Cairo, 11562, Egypt
| | - Passent M Abdel-Baki
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr-El-Ainy Street, Cairo, 11562, Egypt.
| | - Ahmed A El-Rashedy
- Natural and Microbial Products Department, National Research Center (NRC), Dokki, Giza, 12622, Egypt
| | - Rana M Ibrahim
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr-El-Ainy Street, Cairo, 11562, Egypt
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Kareem B, Irondi EA, Alamu EO, Ajani EO, Abass A, Parkes E, Maziya-Dixon B. Antioxidant, starch-digesting enzymes inhibitory, and pasting properties of elite yellow-fleshed cassava genotypes. Front Sustain Food Syst 2023. [DOI: 10.3389/fsufs.2023.1129807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
Biofortification of cassava roots has improved its health benefits by raising the quantity and bioavailability of bioactive compounds, particularly carotenoids. This study analyzed the bioactive constituents (carotenoids, tannins, total phenolics, and flavonoids), antioxidant, starch-digesting enzymes (α-amylase and α-glucosidase) inhibitory and pasting properties of flours of 18 elite yellow-fleshed cassava genotypes grown at the International Institute of Tropical Agriculture, Ibadan, using standard laboratory methods. Generally, the concentrations of the bioactive constituents (9-cis-β-carotene, 13-cis-β-carotene, all trans-β-carotene, total β-carotene, total carotenoids, tannins, total phenolics, and total flavonoids) of the different cassava genotypes varied. The antioxidant activity varied significantly among the different cassava genotypes, with IITA-TMS-IBA183001 having the highest reducing power (2.59 GAE mg/g) and most potent DPPH· scavenging ability (SC50: 14.56 mg/mL). However, the starch-hydrolysing enzymes (alpha-amylase and alpha-glucosidase) inhibitory and the pasting properties of the different genotypes were generally comparable. Total carotenoids content significantly correlated with the DPPH· SC50 (r = −0.495), while total phenolics content correlated with ABTS·+(r = 0.839) and DPPH· SC50 (r = −0.870). Also, tannins content significantly correlated with ABTS·+ (r = 0.553), while total flavonoids content was significantly correlated with α-amylase IC50 (r = −0.532). These findings suggest the potential of flours of the 18 elite yellow-fleshed cassava genotypes to serve as important dietary sources of antioxidants and starch-hydrolysing enzyme inhibitors, which may be beneficial in oxidative stress and postprandial hyperglycaemic conditions.
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Abdel-Wahab AA, Elnesr SS, Abdel-Kader IA. Effect of dietary supplementation of Jerusalem Artichoke extract on performance, blood biochemistry, antioxidant parameters, and immune response of growing Japanese quail. J Anim Physiol Anim Nutr (Berl) 2022; 107:920-927. [PMID: 36245301 DOI: 10.1111/jpn.13783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 08/09/2022] [Accepted: 09/04/2022] [Indexed: 11/28/2022]
Abstract
This study aimed to examine the impact of the Jerusalem Artichoke extract (JAEx) as a feed additive on the performance, blood biochemistry, antioxidant indices, immunity, and intestinal microbiota in growing Japanese quails. In total, 270 birds were randomly divided into three groups, with six replicates of 15 birds each. The first group was fed a control diet without JAEx. The second and third groups received the control diet plus 200 and 400 ppm JAEx, respectively. The groups fed the diet containing 200 and 400 ppm JAEx had the best body weight, body weight gain and feed conversion ratio, and faster growth rate with the best performance index, compared with the control group (p < 0.05). The control quails had a lower feed intake than the JAEx-treated quails. The groups fed JAEx 200 and 400 ppm had the lowest lipid profile, blood glucose, liver enzymes, Salmonella and Escherichia coli population and the highest antioxidant indices, immune responses and Lactobacilli population number compared to the control group (p < 0.05). In conclusion, the addition of JAEx at 400 ppm followed by 200 ppm improved the productive performance, antioxidant capacity, blood biochemical and immunological indices, and intestinal microbiota in growing Japanese quails.
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Affiliation(s)
- A A Abdel-Wahab
- Department of Poultry Production, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
| | - Shaaban S Elnesr
- Department of Poultry Production, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
| | - I A Abdel-Kader
- Department of Poultry Production, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
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Kareem B, Irondi EA, Alamu EO, Ajani EO, Abass A, Adesokan M, Parkes E, Maziya-Dixon B. Influence of traditional processing and genotypes on the antioxidant and antihyperglycaemic activities of yellow-fleshed cassava. Front Nutr 2022; 9:894843. [PMID: 36313071 PMCID: PMC9614258 DOI: 10.3389/fnut.2022.894843] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 07/26/2022] [Indexed: 11/13/2022] Open
Abstract
Yellow-fleshed cassava root (YFCR) is processed into traditional products that may influence its bioactivities. In this study, the antioxidant and anti-hyperglycaemic activities of three traditional products (lafun, fufu and gari) from five genotypes (IITA-TMS-IBA070337, 182961, 182962, 182986, 183044) of YFCR were evaluated. The YFCR genotypes were grown at the International Institute of Tropical Agriculture (IITA) research field, Ibadan. The bioactive constituents (total carotenoids, total phenolics, tannins and total flavonoids), antioxidant [2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonic acid) radical cation (ABTS•+) and 1,1-diphenyl-2- picrylhydrazyl radical (DPPH•) scavenging capacities, and reducing power], and starch-digesting enzymes (α-amylase and α-glucosidase) inhibitory activities of the products were determined using standard laboratory methods. The glucose response of the products was assessed in human subjects. The concentrations of the bioactive constituents of the products from different genotypes varied significantly (p < 0.05). The ABTS•+ and DPPH• scavenging capacities and the reducing power of the products also differed significantly (p < 0.05), such that the lafun from IITA-TMS-IBA182962, IITA-TMS-IBA070337 and IITA-TMS-IBA070337 had the strongest ABTS•+ and DPPH• scavenging capacities, and reducing power, respectively. The α-amylase and α-glucosidase inhibitory activities of the three products differed significantly (p < 0.05), with the lafun from IITA-TMS-IBA070337 and IITA-TMS-IBA07033 having the strongest α-amylase and α-glucosidase inhibitory activity, respectively. Also, the lafun from IITA-TMS-182986 had the least glucose response, while the fufu from IITA-TMS-IBA070337 had the highest glucose response. Overall, the lafun from different genotypes of YFCR had the most potent antioxidant and starch-digesting enzymes inhibitory activities and the least glucose responses. Hence, lafun may be a promising dietary intervention targeting oxidative stress, hyperglycaemia, and their resultant type 2 diabetes.
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Affiliation(s)
- Babajide Kareem
- Department of Medical Biochemistry and Pharmacology, Kwara State University, Ilorin, Nigeria,Food and Nutrition Sciences Laboratory, International Institute of Tropical Agriculture, Lusaka, Zambia
| | | | - Emmanuel Oladeji Alamu
- Food and Nutrition Sciences Laboratory, International Institute of Tropical Agriculture, Lusaka, Zambia,Food and Nutrition Sciences Laboratory, International Institute of Tropical Agriculture, Lusaka, Zambia,*Correspondence: Emmanuel Oladeji Alamu
| | - Emmanuel Oladipo Ajani
- Department of Medical Biochemistry and Pharmacology, Kwara State University, Ilorin, Nigeria
| | - Adebayo Abass
- International Institute of Tropical Agriculture, Dar es Salaam, Tanzania
| | - Michael Adesokan
- Food and Nutrition Sciences Laboratory, International Institute of Tropical Agriculture, Lusaka, Zambia
| | - Elizabeth Parkes
- International Institute of Tropical Agriculture, Ibadan, Nigeria
| | - Busie Maziya-Dixon
- Food and Nutrition Sciences Laboratory, International Institute of Tropical Agriculture, Lusaka, Zambia
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Kania-Dobrowolska M, Baraniak J. Dandelion (Taraxacum officinale L.) as a Source of Biologically Active Compounds Supporting the Therapy of Co-Existing Diseases in Metabolic Syndrome. Foods 2022; 11:foods11182858. [PMID: 36140985 PMCID: PMC9498421 DOI: 10.3390/foods11182858] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 11/21/2022] Open
Abstract
Nowadays, many people are struggling with obesity, type 2 diabetes, and atherosclerosis, which are called the scourge of the 21st century. These illnesses coexist in metabolic syndrome, which is not a separate disease entity because it includes several clinical conditions such as central (abdominal) obesity, elevated blood pressure, and disorders of carbohydrate and fat metabolism. Lifestyle is considered to have an impact on the development of metabolic syndrome. An unbalanced diet, the lack of sufficient physical activity, and genetic factors result in the development of type 2 diabetes and atherosclerosis, which significantly increase the risk of cardiovascular complications. The treatment of metabolic syndrome is aimed primarily at reducing the risk of the development of coexisting diseases, and the appropriate diet is the key factor in the treatment. Plant raw materials containing compounds that regulate lipid and carbohydrate metabolism in the human body are investigated. Dandelion (Taraxacum officinale F.H. Wigg.) is a plant, the consumption of which affects the regulation of lipid and sugar metabolism. The growth of this plant is widely spread in Eurasia, both Americas, Africa, New Zealand, and Australia. The use and potential of this plant that is easily accessible in the world in contributing to the treatment of type 2 diabetes and atherosclerosis have been proved by many studies.
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Deb PK, Shilkar D, Sarkar B. UHPLC‐ESI‐QTOF‐MS/MS based identification, quantification, and assessment of in‐silico molecular interactions of major phytochemicals from bioactive fractions of Clerodendrum glandulosum Lindl. leaves. Chem Biodivers 2022; 19:e202200617. [DOI: 10.1002/cbdv.202200617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 09/12/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Prashanta Kumar Deb
- Birla Institute of Technology Pharmaceutical Sciences & Technology BIT MesraDept. of Pharmaceutical Sciences Technology 835215 Ranchi INDIA
| | - Deepak Shilkar
- Birla Institute of Technology Pharmaceutical Sciences & Technology BIT MesraDept. of Pharmaceutical Sciences Technology 835215 Ranchi INDIA
| | - Biswatrish Sarkar
- Birla Institute of Technology Pharmaceutical Sciences & Technology BIT Mesra 835215 Ranchi INDIA
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Li Y, Chen Y, Sun-Waterhouse D. The potential of dandelion in the fight against gastrointestinal diseases: A review. J Ethnopharmacol 2022; 293:115272. [PMID: 35405251 DOI: 10.1016/j.jep.2022.115272] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/22/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dandelion (Taraxacum officinale Weber ex F. H. Wigg.), as a garden weed grown globally, has long been consumed as a therapeutic herb. Its folkloric uses include treatments of digestive disorders (dyspepsia, anorexia, stomach disorders, gastritis and enteritis) and associate complex ailments involving uterine, liver and lung disorders. AIM OF THE STUDY The present study aims to critically assess the current state of research and summarize the potential roles of dandelion and its constituents in gastrointestinal (GI) -protective actions. A focus is placed on the reported bioactive components, pharmacological activities and modes of action (including molecular mechanisms and interactions among bioactive substances) of dandelion products/preparations and derived active constituents related to GI protection. MATERIALS AND METHODS The available information published prior to August 2021 was reviewed via SciFinder, Web of Science, Google Scholar, PubMed, Elsevier, Wiley On-line Library, and The Plant List. The search was based on the ethnomedical remedies, pharmacological activities, bioactive compounds of dandelion for GI protection, as well as the interactions of the components in dandelion with the gut microbiota or biological regulators, and with other ingested bioactive compounds. The key search words were "Taraxacum" and "dandelion". RESULTS T. coreanum Nakai, T. mongolicum and T. officinale are the most commonly used species for folkloric uses, with the whole plant, leaves and root of dandelion being used more frequently. GI-protective substances of dandelion include taraxasterol, taraxerol, caffeic acid, chicoric acid, chlorogenic acid, luteolin and its glucosides, polysaccharides, inulin, and β-sitosterol. Dandelion products and derived constituents exhibit pharmacological effects against GI disorders, mainly including dyspepsia, gastroesophageal reflux disease, gastritis, small intestinal ulcer, ulcerative colitis, liver diseases, gallstones, acute pancreatitis, and GI malignancy. The underlying molecular mechanisms may include immuno-inflammatory mechanisms, apoptosis mechanism, autophagy mechanism, and cholinergic mechanism, although interactions of dandelion's constituents with GI health-related biological entities (e.g., GI microbiota and associated biological modulators) or other ingested bioactive compounds shouldn't be ignored. CONCLUSION The review reveals some in vivo and in vitro studies on the potential of dandelion derived products as complementary and alternative medicines/therapeutics against GI disorders. The whole herb may alleviate some symptoms related GI immuno-inflammatory basing on the abundant anti-inflammatory and anti-oxide active substances. Dandelion root could be a nontoxic and effective anticancer alternative, owing to its abundant terpenoids and polysaccharides. However, research related to GI protective dandelion-derived products remains limited. Besides the need of identifying bioactive compounds/complexes in various dandelion species, more clinical studies are also required on the metabolism, bioavailability and safety of these substances to support their applications in food, medicine and pharmaceuticals.
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Affiliation(s)
- Yanni Li
- College of Food Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong Province, China
| | - Yilun Chen
- College of Food Science and Engineering, Shandong Agricultural University, Taian, 271018, Shandong Province, China.
| | - Dongxiao Sun-Waterhouse
- School of Chemical Sciences, The University of Auckland, Private Bag, 92019, Auckland, New Zealand.
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Elemosho AO, Irondi EA, Alamu EO, Ajani EO, Menkir A, Maziya-Dixon B. Antioxidant and Starch-Hydrolyzing Enzymes Inhibitory Properties of Striga-Resistant Yellow-Orange Maize Hybrids. Molecules 2021; 26:6874. [PMID: 34833966 DOI: 10.3390/molecules26226874] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022] Open
Abstract
Most of the health benefits derived from cereals are attributed to their bioactive compounds. This study evaluated the levels of the bioactive compounds, and the antioxidant and starch-hydrolyzing enzymes inhibitory properties of six pipeline Striga-resistant yellow-orange maize hybrids (coded AS1828-1, 4, 6, 8, 9, 11) in vitro. The maize hybrids were grown at the International Institute of Tropical Agriculture (IITA), Nigeria. The bioactive compounds (total phenolics, tannins, flavonoids, and phytate) levels, antioxidant (DPPH• and ABTS•+ scavenging capacity and reducing power) and starch-hydrolyzing enzymes (α-amylase and α-glucosidase) inhibitory activities of the maize hybrids were determined by spectrophotometry. At the same time, carotenoids were quantified using a reverse-phase HPLC system. The ranges of the bioactive compounds were: 11.25-14.14 mg GAE/g (total phenolics), 3.62-4.67 mg QE/g (total flavonoids), 3.63-6.29 mg/g (tannins), 3.66-4.31% (phytate), 8.92-12.11 µg/g (total xanthophylls), 2.42-2.89 µg/g (total β-carotene), and 3.17-3.77 µg/g (total provitamin A carotenoids). Extracts of the maize hybrids scavenged DPPH• (SC50: 9.07-26.35 mg/mL) and ABTS•+ (2.65-7.68 TEAC mmol/g), reduced Fe3+ to Fe2+ (0.25 ± 0.64-0.43 ± 0.01 mg GAE/g), and inhibited α-amylase and α-glucosidase, with IC50 ranges of 26.28-52.55 mg/mL and 47.72-63.98 mg/mL, respectively. Among the six clones of the maize hybrids, AS1828-9 had the highest (p < 0.05) levels of tannins and phytate and the strongest antioxidant and starch-hydrolyzing enzymes inhibitory activities. Significant correlations were observed between total phenolics and the following: ABTS•+ (p < 0.01, r = 0.757), DPPH• SC50 (p < 0.01, r = -0.867), reducing power (p < 0.05, r = 0.633), α-amylase IC50 (p < 0.01, r = -0.836) and α-glucosidase IC50 (p < 0.05, r = -0.582). Hence, the Striga-resistant yellow-orange maize hybrids (especially AS1828-9) may be beneficial for alleviating oxidative stress and postprandial hyperglycemia.
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Majnooni MB, Ataee M, Bahrami G, Heydarpour F, Aneva IY, Farzaei MH, Ahmadi-Juoibari T. The effects of co-administration of artichoke leaf extract supplementation with metformin and vitamin E in patients with nonalcoholic fatty liver disease: A randomized clinical trial. Phytother Res 2021; 35:6324-6334. [PMID: 34533249 DOI: 10.1002/ptr.7279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 06/29/2021] [Accepted: 08/28/2021] [Indexed: 01/20/2023]
Abstract
Medicinal plants are widely used as a complementary therapy to treat complex diseases, such as nonalcoholic fatty liver disease (NAFLD). Therefore, this study was done to investigate the effect of co-administration of artichoke leaf extract supplement (ALES) with conventional medicines on patients with NAFLD. The clinical trial was based on patients randomly divided into three groups involving metformin-vitamin E (ME), metformin-ALES (MA), and vitamin E-ALES (EA). The effectiveness of treatment in the treated groups was evaluated using liver ultrasonography and biochemical markers. After 12 weeks of treatment, the results showed that the rate of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) was significantly reduced within all the study groups (p < .05). Liver ultrasonographic findings revealed that the rate of fat accumulation in liver of patients was decreased significantly within all the study groups and it was increased in the subjects with grade 0 fatty liver (without fat accumulation) in the MA and EA groups by 23.3 and 17.2%, respectively. In summary, the results of the present study showed that the concomitant use of ALES with metformin and vitamin E can have beneficial effects on amelioration of complications in patients with NAFLD. However, larger-scale clinical trial studies are required in this regard.
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Affiliation(s)
| | - Mari Ataee
- Clinical Research Development Center, Imam Khomeini and Dr Mohammad Kermanshahi and Farabi Hospitals, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Gholamreza Bahrami
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fatemeh Heydarpour
- Social Development and Health Promotion Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ina Yosifova Aneva
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Touraj Ahmadi-Juoibari
- Clinical Research Development Center, Imam Khomeini and Dr Mohammad Kermanshahi and Farabi Hospitals, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Luo LS, Wang Y, Dai LJ, He FX, Zhang JL, Zhou Q. Triterpenoid acids from medicinal mushroom Inonotus obliquus (Chaga) alleviate hyperuricemia and inflammation in hyperuricemic mice: Possible inhibitory effects on xanthine oxidase activity. J Food Biochem 2021; 46:e13932. [PMID: 34528276 DOI: 10.1111/jfbc.13932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/11/2021] [Accepted: 09/02/2021] [Indexed: 11/28/2022]
Abstract
The purpose of this study was to explore the hypouricemic effect in hyperuricemia mice of triterpenoid acids from Inonotus obliquus (TAIO), and decipher of the underlying xanthine oxidase inhibitory mechanism. Measurement of xanthine oxidase (XO) inhibitory activity was assayed. Organ indexes and serum biochemical indicators were measured in potassium oxonate-induced hyperuricemia mice. Studies showed that TAIO had the strong inhibitory effect on XO activity, and its inhibition type was mixed and reversible. In vivo, TAIO decreased efficiently uric acid level, hepatic XO, serum blood urea nitrogen activities in hyperuricemia mice. Indicating that TAIO may ameliorate kidney damage and relieve inflammation in hyperuricemic mice, and had the inhibitory effect on XO activity. Furthermore, eight triterpenoids were identified by Ultra performance liquid chromatography electrospray quadrupole time of flight mass spectrometry. These findings proved that triterpenoids from Inonotus obliquus would have potential biological characteristics and effect on controlling hyperuricemia and gout as an active supplement. PRACTICAL APPLICATIONS: There are a large amount of evidence indicating that hyperuricemia and gout are related to the hypertension and obesity. And gout and hyperuricemia are also possible connection with cardiovascular disease and metabolic syndrome. Currently, xanthine oxidase is the target of many kinds of chemical drugs at present, but the therapeutic drugs used in clinical medicine will produce more or less side effects. Therefore, the aim of this study was to explore the material basis of effective substances for reducing uric acid in Inonotus obliquus and to evaluate its effect. This study can provide a promising application of Inonotus obliquus in the fields of functional foods or medicines for gout and hyperuricemia.
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Affiliation(s)
- Lin-Song Luo
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yu Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Li-Jun Dai
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Fang-Xia He
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Jiu-Liang Zhang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China.,Key Laboratory of Environment Correlative Dietology, Ministry of Education, Wuhan, China
| | - Qing Zhou
- Department of Pharmacy, Wuhan City Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Salehi B, Sharifi-Rad J, Herrera-Bravo J, Salazar LA, Delporte C, Barra GV, Cazar Ramirez ME, López MD, Ramírez-Alarcón K, Cruz-Martins N, Martorell M. Ethnopharmacology, Phytochemistry and Biological Activities of Native Chilean Plants. Curr Pharm Des 2021; 27:953-970. [PMID: 33234091 DOI: 10.2174/1381612826666201124105623] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/04/2020] [Indexed: 11/22/2022]
Abstract
The native flora of Chile has unique characteristics due to the geographical situation of the country, with the vast desert in the North, Patagonia in the South, the Andean Mountains on the east and the Pacific Ocean on the west. This exclusivity is reflected in high concentrations of phytochemicals in the fruits and leaves of its native plants. Some examples are Aristotelia chilensis (Molina), Stuntz (maqui), Berberis microphylla G. Forst. (calafate), Peumus boldus Molina (boldo), Ribes magellanicum Poir. (Magellan currant), Ugni molinae Turcz. (murtilla), Rubus geoides Sm. (miñe miñe), Drimys winteri J.R.Forst. & G.Forst. (canelo), Luma apiculata (DC.) Burret (arrayán) distributed throughout the entire Chilean territory. Some of these Chilean plants have been used for centuries in the country's traditional medicine. The most recent studies of phytochemical characterization of parts of Chilean plants show a wide spectrum of antioxidant compounds, phenolic components, terpenoids and alkaloids, which have shown biological activity in both in vitro and in vivo studies. This manuscript covers the entire Chilean territory characterizing the phytochemical profile and reporting some of its biological properties, focusing mainly on antioxidant, anti-inflammatory, antimicrobial, chemopreventive and cytotoxic activity, and potential against diabetes, metabolic syndrome and gastrointestinal disorders.
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Affiliation(s)
- Bahare Salehi
- Medical Ethics and Law Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jesús Herrera-Bravo
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad Santo Tomas, Chile
| | - Luis A Salazar
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad Santo Tomas, Chile
| | - Carla Delporte
- Departamento de Quimica Farmacologica y Toxicologica, Laboratorio de Productos Naturales, Facultad de Ciencias Quimicas y Farmaceuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago, Chile
| | - Gabriela Valenzuela Barra
- Laboratorio de Productos Naturales, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
| | - Maria-Elena Cazar Ramirez
- Biotechnology and Biodiversity Group, Universidad de Cuenca. Department of Applied Chemistry and Production Systems. Chemical Sciences Faculty. Av. 12 de Abril s/n, Cuenca, Ecuador
| | - Maria Dolores López
- Department of Plant Production, Faculty of Agronomy, Universidad de Concepción, Avenida Vicente Mendez, 595, Chillán 3812120, Chile
| | - Karina Ramírez-Alarcón
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepcion, 4070386 Concepcion, VIII-Bio Bio Region, Chile
| | - Natália Cruz-Martins
- Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, University of Concepcion, 4070386 Concepcion, VIII-Bio Bio Region, Chile
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Marmouzi I, Bouyahya A, Ezzat SM, El Jemli M, Kharbach M. The food plant Silybum marianum (L.) Gaertn.: Phytochemistry, Ethnopharmacology and clinical evidence. J Ethnopharmacol 2021; 265:113303. [PMID: 32877720 DOI: 10.1016/j.jep.2020.113303] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 08/03/2020] [Accepted: 08/21/2020] [Indexed: 05/26/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Silybum marianum (L.) Gaertn. or Milk thistle is a medicinal plant native to Northern Africa, Southern Europe, Southern Russia and Anatolia. It also grows in South Australia, North and South America. In traditional knowledge, people have used S. marianum for liver disorders such as hepatitis, liver cirrhosis and gallbladder diseases. The main active compound of the plant seeds is silymarin, which is the most commonly used herbal supplement in the United States for liver problems. Nowadays, S. marianum products are available as capsules, powders, and extracts. AIM OF STUDY The aim of our study is to draw a more comprehensive overview of the traditional heritage, pharmacological benefits and chemical fingerprint of S. marianum extracts and metabolites; as well as their metabolism and bioavailability. MATERIALS AND METHODS An extensive literature search has been conducted using relavant keywords and papers with rationale methodology and robust data were selected and discussed. Studies involving S. marianum or its main active ingredients with regards to hepatoprotective, antidiabetic, cardiovascular protection, anticancer and antimicrobial activities as well as the clinical trials performed on the plant, were discussed here. RESULTS S. marianum was subjected to thousands of ethnopharmacological, experimental and clinical investigations. Although, the plant is available for use as a dietary supplement, the FDA did not yet approve its use for cancer therapy. Nowadays, clinical investigations are in progress where a global evidence of its real efficiency is needed. CONCLUSION S. marianum is a worldwide used herb with unlimited number of investigations focusing on its benefits and properties, however, little is known about its clinical efficiency. Moreover, few studies have discussed its metabolism, pharmacokinetics and bioavailability, so that all future studies on S. marianum should focus on such areas.
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Affiliation(s)
- Ilias Marmouzi
- Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, University Mohammed V in Rabat, Rabat, Morocco
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathology Biology, Faculty of Sciences, Department of Biology, Genomic Center of Human Pathology, Mohammed V University in Rabat, Morocco
| | - Shahira M Ezzat
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Ainy Street, Cairo, 11562, Egypt; Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Science and Arts (MSA), Giza, 12451, Egypt.
| | - Meryem El Jemli
- Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, University Mohammed V in Rabat, Rabat, Morocco
| | - Mourad Kharbach
- Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, University Mohammed V in Rabat, Rabat, Morocco; Department of Analytical Chemistry, Applied Chemometrics and Molecular Modelling, CePhaR, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, B-1090, Brussels, Belgium
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Pérez-Burillo S, Hinojosa-Nogueira D, Pastoriza S, Rufián-Henares JA. Plant extracts as natural modulators of gut microbiota community structure and functionality. Heliyon 2020; 6:e05474. [PMID: 33251359 PMCID: PMC7677688 DOI: 10.1016/j.heliyon.2020.e05474] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/27/2020] [Accepted: 11/05/2020] [Indexed: 02/07/2023] Open
Abstract
The main objective of this work was to evaluate the effect that several plant extracts (currently sold as functional ingredients) have on gut microbiota community structure and functionality. Plant extracts were submitted to an in vitro digestion and fecal fermentation. Overall, plant extracts showed a marked inhibitory activity when compared to basal conditions. However, they also favored the growth of some bacteria such as Coprococcus and Butyricimonas, two butyrate producers. Especially interesting was tea extract which inhibited the growth of the genus Escherichia/Shigella, known to involve species related with gastrointestinal disorders. Additionally, tea extract increased the growth of Faecalibacterium, a known butyrate producer. Regarding short chain fatty acids production, while plant extracts reduced acetate production, butyrate was increased for most samples, especially tea extract. Propionate production was less affected in comparison with basal conditions. Fermentation by gut microbiota also modified the antioxidant capacity (assessed via DPPH, FRAP and Folin-Ciocalteu methods).
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Affiliation(s)
- S Pérez-Burillo
- Departamento de Nutrición y Bromatología, Instituto de Nutrición y Tecnología de Alimentos, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain
| | - D Hinojosa-Nogueira
- Departamento de Nutrición y Bromatología, Instituto de Nutrición y Tecnología de Alimentos, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain
| | - S Pastoriza
- Departamento de Nutrición y Bromatología, Instituto de Nutrición y Tecnología de Alimentos, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain
| | - J A Rufián-Henares
- Departamento de Nutrición y Bromatología, Instituto de Nutrición y Tecnología de Alimentos, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Universidad de Granada, Spain
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Shallan MA, Ali MA, Meshrf WA, Marrez DA. In vitro antimicrobial, antioxidant and anticancer activities of globe artichoke (Cynara cardunculus var. scolymus L.) bracts and receptacles ethanolic extract. Biocatalysis and Agricultural Biotechnology 2020; 29:101774. [DOI: 10.1016/j.bcab.2020.101774] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
Boldo leaves (Boldo folium, from Peumus boldus Mol.) are very frequently used as a medicinal herb in Chile and are exported to many countries to be used in teas or as extracts included in herbal remedies, primarily as an aid to digestion and as a mild sedative. Scientific support for these uses is scanty, and boldine, an alkaloid viewed as characteristic of the tree and present in high concentration in the bark, is extracted by specialized companies and sold as the supposed main active constituent. Consequently, boldine has been the subject of a considerable number of research papers, while some of the other alkaloids present to a greater extent in the leaves have been relatively neglected except when found in large amounts in other species. These studies range from assays of antioxidant activity to anti-inflammatory, antineoplastic and other medical applications. The essential oil, usually containing a large percentage of the toxic ascaridole, was once used as a vermifuge and is now regarded with caution, but is still of interest as a possible natural insecticide, fungicide, antiparasitic and herbicide. The last decade has seen an explosive increase in papers pointing to possible uses of boldo and its constituents. This review attempts to bring these publications together in a comprehensive way with the purpose of stimulating and orienting further research into the useful properties of this Chilean endemic tree.
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Affiliation(s)
- Bruce K. Cassels
- Department of Chemistry, Faculty of Sciences, University of Chile, Santiago, Chile
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Irondi EA, Adegoke BM, Effion ES, Oyewo SO, Alamu EO, Boligon AA. Enzymes inhibitory property, antioxidant activity and phenolics profile of raw and roasted red sorghum grains in vitro. Food Science and Human Wellness 2019. [DOI: 10.1016/j.fshw.2019.03.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Chukwuma CI, Matsabisa MG, Ibrahim MA, Erukainure OL, Chabalala MH, Islam MS. Medicinal plants with concomitant anti-diabetic and anti-hypertensive effects as potential sources of dual acting therapies against diabetes and hypertension: A review. J Ethnopharmacol 2019; 235:329-360. [PMID: 30769039 DOI: 10.1016/j.jep.2019.02.024] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 02/09/2019] [Accepted: 02/11/2019] [Indexed: 05/25/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Diabetes and hypertension are pathophysiologically related diseases that co-exist with a wider complex of metabolic diseases having similar set of risk factors. There are numerous ethnopharmacological evidences on the anti-diabetic and/or anti-hypertensive properties of medicinal plants from various parts of the world, which are used as therapies to concomitantly manage diabetes and hypertension. AIM OF THE REVIEW This article reviewed findings on medicinal plants with both anti-diabetic and anti-hypertensive effects reported in same experimental study to facilitate the development of dual-acting therapies against diabetes and hypertension. MATERIALS AND METHODS A literature search was carried out on different scientific search engines including, but not limited to "PubMed", "Google Scholar", "Scopus" and ScienceDirect to identify published data in which plants in same experimental studies were reported to possess both anti-hyperglycemic and anti-hypertensive effects. Subsequently, the anti-diabetic/anti-hypertensive potency ratio (ψ) of the medicinal plants was computed. RESULTS Sixty-four studies with 102 plant species matched the selection criteria. Members of the Fabaceae family were the most investigated plants, while the ψ greatly varied across the plants, with only 11 plants having a ψ ≃ 1. Withania somnifera Dunal was the only plant reported to show blood glucose-lowering and diuretic effects in humans, comparable to daonil. Caffeic acid, chlorogenic acid, caftaric acid, cichoric acid, verbascoside, leucosceptoside A, isoacteoside, fucoxanthin and nicotinamide were the reported dual acting anti-diabetic and anti-hypertensive compounds identified and/or isolated in the plants. CONCLUSIONS This review suggests that medicinal plants possess varied therapeutic dynamics against hypertension and diabetes that could be exploited for the discovery of therapeutic preparation(s) or agent(s) for treating the two diseases.
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Affiliation(s)
- Chika Ifeanyi Chukwuma
- Department of Pharmacology, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa.
| | - Motlalepula G Matsabisa
- Department of Pharmacology, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa.
| | | | - Ochuko L Erukainure
- Biomedical Research Laboratory, Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
| | - Matimbha H Chabalala
- Department of Pharmacology, Faculty of Health Sciences, University of the Free State, Bloemfontein, South Africa
| | - Md Shahidul Islam
- Biomedical Research Laboratory, Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Durban 4000, South Africa
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Nooreen Z, Bushra U, Bawankule DU, Shanker K, Ahmad A, Tandon S. Standardization and xanthine oxidase inhibitory potential of Zanthoxylum armatum fruits. J Ethnopharmacol 2019; 230:1-8. [PMID: 30342965 DOI: 10.1016/j.jep.2018.10.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/10/2018] [Accepted: 10/12/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tejovati (Zanthoxylum armatum DC; Family- Rutaceae) popularly known as toothache tree is widely distributed in sub-tropical Himalaya region. Traditionally, The Southeast Asian population of Indo-Nepal origin uses it to treat asthma, gout, pain, and inflammation. The Ayurvedic action of the plant includes the balancing of Vata-Kapha in the body. Which lead to various ailments related to the circulation of blood and water, digestion, immunity, and skin. Therefore, in-vitro xanthine oxidase (XO) inhibition potential of the extract could be worth to explore prospect in the prevention/treatment of gouty affections of the joints and other diseases. AIM OF STUDY Anti-inflammatory and antioxidant potential of Z. armatum fruit (ZAF) has been reported. To date, no scientific study to validate the claim for gout treatment/management has been attempted so far. The present study deals with the xanthine oxidase inhibitory potential of a various extract of ZAF and marker-based high-performance liquid chromatography (HPLC) standardization of most active fraction. MATERIALS AND METHODS Liquid-liquid partioning of crude methanol extract of the ZAF followed by repeated column chromatography of most active fraction has resulted in the isolation of seven compounds. Five distinct groups of compounds were isolated, purified, and identified. We have investigated the therapeutic action of ZAF in the management of gout through in-vitro assay of XO, a key enzyme involved in gout pathogenesis. RESULTS Phytochemical investigation of ZAF has resulted in the isolation of seven compounds of diverse nature. It is noteworthy to mention that out of seven, five compounds have shown the xanthine oxidase inhibitory action. The ethyl acetate fraction was most potent to inhibit XO. The XO inhibitory activity (IC50 values) of isolated marker chemical was ranging from 5.62 to 41.21 µM. Three compounds viz. acetyl phenyl acetate (ZA-2), prudomestin (ZA-6), and tambulin (ZA-7) showed the most potent XO inhibitory activity (IC50 ≈ 6 µM) comparable with a positive control (Allopurinol, IC50, 3.38 µM). This is the first validated HPLC-PDA method for simultaneous analysis and accurate quantification of seven compounds (phenolic acid, acetyl phenyl acetate, xylopyranoside, diphenyl ether and three flavones) in ZAF as well as their distribution in other tissues of the plant. CONCLUSION Most potent three chemicals (ZA-2, 6 and 7) could be considered as bioactive to ensure the robust quality of the enriched fraction of ZAF with defined XO inhibition potential. Therefore, either single purified component or their enriched fraction could be a better choice for the management of gout than the crude extract of ZAF. Developed HPLC method is suitable for quality assurance analysis and process control of ZAF derived product intended for gout management. XO inhibitory potential exhibited by the characterized compounds validate the traditional use of this ZAF for the treatment of gout. Further, a detailed study is required to assess the effect of ZAF chemicals on serum uric acid and mechanism of XO inhibition.
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Affiliation(s)
- Zulfa Nooreen
- Process Chemistry and Technology Department, CSIR-Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow 226015, India
| | - Umme Bushra
- Analytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow 226015, India
| | - Dnyaneshwar U Bawankule
- Molecular Bioprospection Department, CSIR-Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow 226015, India
| | - Karuna Shanker
- Analytical Chemistry Department, CSIR-Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow 226015, India.
| | - Ateeque Ahmad
- Process Chemistry and Technology Department, CSIR-Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow 226015, India
| | - Sudeep Tandon
- Process Chemistry and Technology Department, CSIR-Central Institute of Medicinal and Aromatic Plants (CIMAP), Lucknow 226015, India
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Irondi EA, Ogunsanmi AO, Ahmad RS, Ajani EO, Adegoke BM, Boligon AA. Effect of roasting on phenolics composition, enzymes inhibitory and antioxidant properties of cowpea pulses. Food Measure 2019. [DOI: 10.1007/s11694-019-00064-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Wang W, Li J, Zhang H, Wang X, Fan J, Zhang X. Phenolic compounds and bioactivity evaluation of aqueous and methanol extracts of Allium mongolicum Regel. Food Sci Nutr 2019; 7:779-787. [PMID: 30847157 PMCID: PMC6392871 DOI: 10.1002/fsn3.926] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 11/22/2018] [Accepted: 11/28/2018] [Indexed: 12/12/2022] Open
Abstract
Allium mongolicum Regel (AM), widely distributed in western China, is a traditional Mongolian medicine herb. Two different solvents as water and methanol were used to extract AM, and their antioxidant capacity and inhibitory effects against key enzymes related to metabolic syndrome were assessed. The antioxidant capacity was evaluated through the assay of radical scavenging ability on DPPH and ABTS and reducing power assays. In addition, the total phenolic content and total flavonoids content were quantificated and analyzed. Aqueous extract, having higher phenolic content (10.20 mg GAE/g DW) and flavonoid content (4.02 mg QE/g DW), showed better antioxidant and inhibitory effects against lipase and angiotensin-converting enzyme (ACE); as for α-glucosidase, the extract made by methanol showed better ability. In general, the aqueous extract of A. mongolicum Regel has the potential to be used as a functional food or nutraceutical in prevention and treatment of obesity and hypertension due to the high antioxidant and sound inhibitory potential against vital enzymes relevant to obesity and hypertension.
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Affiliation(s)
- Wanyu Wang
- Department of Nutrition and Food HygieneCollege of Public HealthZhengzhou UniversityZhengzhouChina
| | - Jiao Li
- Department of Nutrition and Food HygieneCollege of Public HealthZhengzhou UniversityZhengzhouChina
| | - Huizhen Zhang
- Department of Nutrition and Food HygieneCollege of Public HealthZhengzhou UniversityZhengzhouChina
| | - Xiaokai Wang
- Department of Nutrition and Food HygieneCollege of Public HealthZhengzhou UniversityZhengzhouChina
| | - Jianming Fan
- Department of Nutrition and Food HygieneCollege of Public HealthZhengzhou UniversityZhengzhouChina
| | - Xiaofeng Zhang
- Department of Nutrition and Food HygieneCollege of Public HealthZhengzhou UniversityZhengzhouChina
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Tajmohammadi A, Razavi BM, Hosseinzadeh H. Silybum marianum (milk thistle) and its main constituent, silymarin, as a potential therapeutic plant in metabolic syndrome: A review. Phytother Res 2018; 32:1933-1949. [PMID: 30015401 DOI: 10.1002/ptr.6153] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 05/25/2018] [Accepted: 06/18/2018] [Indexed: 12/12/2022]
Abstract
Metabolic syndrome describes a complex metabolic risk factors including obesity, hypertension, dyslipidemia, and diabetes. This syndrome is diagnosed by medical conditions such as weight gain, high blood pressure, high blood glucose, and disturbance in lipid profile. Metabolic syndrome has become as an important and increasing global health problem, so finding potentially novel solutions with less adverse effects is favorable for health problems. Herbal therapy plays an important role for treatment of different diseases. Silybum marianum is a plant that is used for centuries as a herbal treatment in liver and biliary tract diseases. Silymarin is the main component of S. marianum and derived from fruits and seeds of S. marianum (milk thistle). S. marianum has been found to exhibit antioxidant, lipid-lowering, antihypertensive, antidiabetic, antiatherosclerotic, anti-obesity, and hepatoprotective effects. Therefore, the aim of this review is to summarize different animal and human studies regarding the effect of S. marianum in metabolic syndrome and to identify the underlying mechanisms of action.
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Affiliation(s)
| | - Bibi Marjan Razavi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseinzadeh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Wang RD, Su GH, Wang L, Xia Q, Liu R, Lu Q, Zhang JL. Identification and mechanism of effective components from rape (Brassica napus L.) bee pollen on serum uric acid level and xanthine oxidase activity. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.05.064] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Kirakosyan A, Gutierrez E, Ramos Solano B, Seymour EM, Bolling SF. The inhibitory potential of Montmorency tart cherry on key enzymes relevant to type 2 diabetes and cardiovascular disease. Food Chem 2018; 252:142-146. [DOI: 10.1016/j.foodchem.2018.01.084] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 12/07/2017] [Accepted: 01/11/2018] [Indexed: 12/13/2022]
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Kirakosyan A, Seymour EM, Kondoleon N, Gutierrez E, Wolforth J, Bolling S. The intake of red raspberry fruit is inversely related to cardiac risk factors associated with metabolic syndrome. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.12.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Irondi EA, Adebara OO, Olateju A, Boligon AA. Phenolic constituents, anti-radicals, and enzymes inhibitory potentials of Brachystegia eurycoma seeds: Effects of processing methods. International Journal of Food Properties 2018. [DOI: 10.1080/10942912.2017.1396340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Oladele Oluwafemi Adebara
- Department of Biochemistry, School of Basic Medical Sciences, Kwara State University, Ilorin, Nigeria
| | - Aminat Olateju
- Department of Biochemistry, School of Basic Medical Sciences, Kwara State University, Ilorin, Nigeria
| | - Aline Augusti Boligon
- Phytochemical Research Laboratory, Department of Industrial Pharmacy, Federal University of Santa Maria, Santa Maria, Brazil
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Irondi EA, Agboola SO, Boligon AA. Inhibitory effects of tropical almond leaf extract on xanthine oxidase, pancreatic lipase, and angiotensin 1-converting enzyme, in vitro. J Food Biochem 2017. [DOI: 10.1111/jfbc.12481] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Samson Olalekan Agboola
- Department of Veterinary Physiology, Biochemistry and Pharmacology; University of Ibadan, Ibadan, Nigeria
| | - Aline Augusti Boligon
- Phytochemical Research Laboratory, Department of Industrial Pharmacy; Federal University of Santa Maria; Santa Maria Brazil
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Colantuono A, Ferracane R, Vitaglione P. Potential bioaccessibility and functionality of polyphenols and cynaropicrin from breads enriched with artichoke stem. Food Chem 2017; 245:838-844. [PMID: 29287449 DOI: 10.1016/j.foodchem.2017.11.099] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Revised: 11/19/2017] [Accepted: 11/27/2017] [Indexed: 01/15/2023]
Abstract
In this study, an artichoke stem powder (ASP) was used at three concentrations (3%, 6% and 9%) in the formulation of new breads. The bioaccessibility of polyphenols and cynaropicrin from the ASP-enriched breads was evaluated in vitro by using a digestion model combined to high resolution mass spectrometry analysis. The overall total antioxidant capacity of the bioaccessible and unsolubilized fractions obtained during the intestinal steps and the potential ability to modulate α-glucosidase activity were tested. Data showed that 82% of totally bioaccessible polyphenols and 74% of cynaropicrin were released during the duodenal digestion whereas 88% of caffeic acid was released in the colon step. The antioxidant capacity and the α-glucosidase inhibitory activity of the duodenal extract correlated with the amount of ASP in the bread. Data demonstrated that ASP might be a valuable functional ingredient to create a reducing environment in the intestine and to partially modulate glucose metabolism.
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Affiliation(s)
- Antonio Colantuono
- Department of Agricultural Sciences, University of Naples "Federico II", Portici, Italy
| | - Rosalia Ferracane
- Department of Agricultural Sciences, University of Naples "Federico II", Portici, Italy
| | - Paola Vitaglione
- Department of Agricultural Sciences, University of Naples "Federico II", Portici, Italy.
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Spínola V, Castilho PC. Evaluation of Asteraceae herbal extracts in the management of diabetes and obesity. Contribution of caffeoylquinic acids on the inhibition of digestive enzymes activity and formation of advanced glycation end-products (in vitro). Phytochemistry 2017; 143:29-35. [PMID: 28755585 DOI: 10.1016/j.phytochem.2017.07.006] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/29/2017] [Accepted: 07/20/2017] [Indexed: 06/07/2023]
Abstract
The study was performed to assess, for the first time, the in vitro anti-diabetic potential of ten Asteraceae plant extracts to inhibit the activity of digestive enzymes (α-amylase, α-, β-glucosidases and lipase) responsible for hydrolysis/digestion of sugar and lipids. Prevention of advanced glycation end-products (AGEs) formation was evaluated in bovine serum albumin/ribose glycation reaction model. The phytochemical profiles and caffeoylquinic acids (CQAs) contents were determined for the methanolic extract of each plant. Analyzed plant extracts exhibited significant inhibitory activity against key digestive enzymes linked to type II diabetes and obesity. A strong inhibition was observed for glucosidases and mild activity towards amylase and lipase (compared to reference compounds). Moreover, some extracts exhibited potent ability to prevent formation of AGEs, implicated in some diabetic complications. Caffeoylquinic acids were dominant in all plant extracts and findings demonstrate that these compounds are the most relevant hypoglycemic and anti-glycation agents. From the obtained results, Argyranthemum pinnatifidum, Helichrysum melaleucum, and Phagnalon lowei are good candidates for further development of phyto-pharmaceutical preparations as complementary therapy for diabetes and obesity control.
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Affiliation(s)
- Vítor Spínola
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Paula C Castilho
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal.
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Corrons MA, Liggieri CS, Trejo SA, Bruno MA. ACE-inhibitory peptides from bovine caseins released with peptidases from Maclura pomifera latex. Food Res Int 2017; 93:8-15. [PMID: 28290283 DOI: 10.1016/j.foodres.2017.01.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 01/04/2017] [Accepted: 01/06/2017] [Indexed: 01/29/2023]
Abstract
In work reported here, a proteolytic extract prepared from Maclura pomifera latex was employed to hydrolyze bovine caseins. Densitograms of Tricine-sodium-dodecyl-sulfate-polyacrylamide-gel electrophoresis (SDS-PAGE) indicated that the caseins were considerably degraded after a 10-min reaction. The degree of hydrolysis determined by the 2,4,6-trinitrobenzenesulfonic-acid method was 17.1±0.7% after 180min of digestion. The concentration of small peptides increased with hydrolysis time, and analysis by reverse-phase high-performance liquid chromatography (RP HPLC) and mass spectrometry, revealed a virtually unchanged peptide profile. These results suggested that those proteases were highly specific, as only certain peptide bonds were cleaved. The hydrolysate of 180min displayed the highest inhibition of angiotensin-converting enzyme (ACE) showing an IC50 of 1.72±0.25mg/mL, and the analysis of the peptide fractionation in this hydrolysate by RP HPLC exhibited two peaks responsible for that activity. Fragmentation analysis through the use of iterated matrix-assisted-laser-desorption-ionization-time-of-flight mass spectrometry (MALDI-TOF/TOF MS/MS) with the aid of bioinformatics tools enabled us to deduce two peptide sequences-one, YQEPVLGPVRGPFPIIV, having been previously reported as an ACE-inhibitor; the other, RFFVAPFPE, as yet undescribed. The presence of bioactive peptides in these casein hydrolysates argues for their potential use in the development of functional foods.
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Irondi EA, Agboola SO, Oboh G, Boligon AA. Inhibitory effect of leaves extracts of Ocimum basilicum and Ocimum gratissimum on two key enzymes involved in obesity and hypertension in vitro. J Intercult Ethnopharmacol 2016; 5:396-402. [PMID: 27757270 PMCID: PMC5061483 DOI: 10.5455/jice.20160814112756] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 07/23/2016] [Indexed: 11/29/2022]
Abstract
Aim: To evaluate the phenolics composition and inhibitory effect of the leaves extracts of Ocimum basilicum and Ocimum gratissimum on two key enzymes (pancreatic lipase [PL] and angiotensin 1-converting enzyme [ACE]) involved in obesity and hypertension in vitro. Materials and Methods: The phenolics (flavonoids and phenolic acids) were quantified using high-performance liquid chromatography coupled with diode array detection. PL and ACE inhibitory effects; DPPH* and ABTS*+ scavenging activities of the extracts were tested using spectrophotometric methods. Results: O. basilicum had the following major phenolics: Rutin, quercetin, and quercitrin (flavonoids); caffeic, chlorogenic, and gallic acids (phenolic acids); while O. gratissimum had the following major phenolics: Rutin, quercitrin, and luteolin (flavonoids); ellagic and chlorogenic acids (phenolic acids). “Extracts of both plants inhibited PL and ACE; scavenged DPPH* in a dose-dependent manner”. O. gratissimum extract was more potent in inhibiting PL (IC50: 20.69 µg/mL) and ACE (IC50: 29.44 µg/mL) than O. basilicum (IC50: 52.14 µg/mL and IC50: 64.99 µg/mL, against PL and ACE, respectively). O. gratissimum also scavenged DPPH* and ABTS*+ more than O. basilicum. Conclusion: O. basilicum and O. gratissimum leaves could be used as functional foods for the management of obesity and obesity-related hypertension. However, O. gratissimum may be more effective than O. basilicum.
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Affiliation(s)
- Emmanuel Anyachukwu Irondi
- Department of Biosciences and Biotechnology, Biochemistry Unit, Kwara State University, Malete, P.M.B. 1530, Ilorin, Nigeria
| | - Samson Olalekan Agboola
- Department of Veterinary Physiology, Biochemistry and Pharmacology, University of Ibadan, Ibadan, Nigeria
| | - Ganiyu Oboh
- Department of Biochemistry, Functional Foods and Nutraceuticals Unit, Federal University of Technology, Akure, Nigeria P.M.B., 704, Akure 340001, Nigeria
| | - Aline Augusti Boligon
- Department of Industrial Pharmacy, Phytochemical Research Laboratory, Federal University of Santa Maria, Building 26, Room 1115, Santa Maria, CEP 97105-900, Brazil
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Li H, Zhao M, Su G, Lin L, Wang Y. Effect of Soy Sauce on Serum Uric Acid Levels in Hyperuricemic Rats and Identification of Flazin as a Potent Xanthine Oxidase Inhibitor. J Agric Food Chem 2016; 64:4725-4734. [PMID: 27181598 DOI: 10.1021/acs.jafc.6b01094] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This is the first report on the ability of soy sauce to effectively reduce the serum uric acid levels and xanthine oxidase (XOD) activities of hyperuricemic rats. Soy sauce was partitioned sequentially into ethyl acetate and water fractions. The ethyl acetate fraction with strong XOD inhibition effect was purified further. On the basis of xanthine oxidase inhibitory (XOI) activity-guided purification, nine compounds including 3,4-dihydroxy ethyl cinnamate, diisobutyl terephthalate, harman, daidzein, flazin, catechol, thymine, genistein, and uracil were obtained. It was the first time that 3,4-dihydroxy ethyl cinnamate and diisobutyl terephthalate had been identified from soy sauce. Flazin with hydroxymethyl furan ketone group at C-1 and carboxyl at C-3 exhibited the strongest XOI activity (IC50 = 0.51 ± 0.05 mM). According to fluorescence quenching and molecular docking experiments, flazin could enter into the catalytic center of XOD to interact with Lys1045, Gln1194, and Arg912 mainly by hydrophobic forces and hydrogen bonds. Flazin, catechol, and genistein not only were potent XOD inhibitors but also held certain antioxidant activities. According to ADME (absorption, distribution, metabolism, and excretion) simulation in silico, flazin had good oral bioavailability in vivo.
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Affiliation(s)
- Huipin Li
- School of Food Science and Engineering, South China University of Technology , Guangzhou 510640, China
- Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center , Guangzhou 510640, China
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology , Guangzhou 510640, China
- Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center , Guangzhou 510640, China
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology , Guangzhou 510640, China
| | - Guowan Su
- School of Food Science and Engineering, South China University of Technology , Guangzhou 510640, China
- Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center , Guangzhou 510640, China
| | - Lianzhu Lin
- School of Food Science and Engineering, South China University of Technology , Guangzhou 510640, China
- Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center , Guangzhou 510640, China
| | - Yong Wang
- Department of Food Science and Engineering, Jinan University , Guangzhou 510632, China
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