1
|
Sánchez-Ortiz A, Mateo-Sanz JM, Mateos-Fernández MA, Figueras ML. New Labeling Rules for Wine: Wine Alcohol-Derived Calories and Polyphenol Consumption on Health. Foods 2024; 13:295. [PMID: 38254596 PMCID: PMC10814839 DOI: 10.3390/foods13020295] [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: 12/18/2023] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 01/24/2024] Open
Abstract
Alcohol content, proanthocyanins and anthocyanins influence wine quality. The composition of wine depends on the type of cultivar, location, environmental conditions, and management practices. Phenolic compounds have attracted considerable research interest due to their antioxidant properties and potential beneficial effects on human health. However, the low bioavailability of anthocyanins creates a major bottleneck in their ability to exert beneficial effects. Despite extensive research on the effects of wine on human health, no clear evidence has been obtained on the benefits of wine quality or geographic area of production on health conditions, such as metabolic syndrome. Five climatically and geologically distinct wines were evaluated. Based on recent studies, meta-analyses, and pooled analyses of wine composition, along with the predicted low bioavailability of polyphenol compounds, we estimated the efficacy of five geographically distinct wines according to gastrointestinal absorption and the effects of alcohol intake on both men and women, with a view to ascertaining whether geographical origin influences the antioxidant serum composition of wine. Data on the estimated consumption of wine suggest that the polyphenol contents are similar regardless of choice of wine/area, while different alcohol compositions affect the level of alcohol and calorie intake. Thus, moderate wine drinkers should be advised to control the habit, but without exceeding the dose considered a healthy threshold (up to 30-40 g of alcohol/day in men and 10-20 g of alcohol/day in women), given no medical contraindications are present. These results will add value to the framework of the last reform of the Common Agricultural Policy (CAP) adopted in December 2021, where the European Parliament and the Council introduced new labeling rules for the wine sector and aromatized wine products.
Collapse
Affiliation(s)
- Antoni Sánchez-Ortiz
- Departament de Bioquímica i Biotecnologia, Facultat d’Enologia de Tarragona, Campus Sescelades, Universitat Rovira i Virgili, Marcel-lí Domingo, s/n, 43007 Tarragona, Spain; (M.A.M.-F.); (M.L.F.)
| | - Josep Maria Mateo-Sanz
- Departament d’Enginyeria Química, ETSEQ, Campus Sescelades, Universitat Rovira i Virgili, Marcel-lí Domingo, s/n, 43007 Tarragona, Spain;
| | - Maria Assumpta Mateos-Fernández
- Departament de Bioquímica i Biotecnologia, Facultat d’Enologia de Tarragona, Campus Sescelades, Universitat Rovira i Virgili, Marcel-lí Domingo, s/n, 43007 Tarragona, Spain; (M.A.M.-F.); (M.L.F.)
| | - Miriam Lampreave Figueras
- Departament de Bioquímica i Biotecnologia, Facultat d’Enologia de Tarragona, Campus Sescelades, Universitat Rovira i Virgili, Marcel-lí Domingo, s/n, 43007 Tarragona, Spain; (M.A.M.-F.); (M.L.F.)
| |
Collapse
|
2
|
Celık ZM, Sargin M, Tamer HG, Gunes FE. The effect of lyophilized dried cornelian cherry ( Cornus mas L.) intake on anthropometric and biochemical parameters in women with insulin resistance: A randomized controlled trial. Food Sci Nutr 2023; 11:8060-8071. [PMID: 38107130 PMCID: PMC10724626 DOI: 10.1002/fsn3.3725] [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: 04/27/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 12/19/2023] Open
Abstract
The aim of this study was to determine the effect on the anthropometric and biochemical parameters for women with insulin resistance when lyophilized dried cornelian cherry (Cornus mas L., CM) was added to medical nutrition therapy (MNT). The study was conducted with 84 women aged 18-45, who had been diagnosed with insulin resistance. Participants were randomized into four groups: MNT + 20 g lyophilized dried CM group (DCm, n = 22), MNT group (D, n = 21), only 20 g lyophilized dried CM group (Cm, n = 21), and the control group (C, n = 20). All participants were followed for 12 weeks. While pre- and post-intervention biochemical parameters were recorded from patient files, anthropometric measurements and food consumption records were taken every 15 days. Pre-intervention groups were homogeneously distributed. Post-intervention, among the groups, all anthropometric measurements were similar between the DCm and D, while the percentage of decrease in insulin resistance-related parameters was approximately two times greater in DCm than in D (p < .05). When the Cm and C were compared, it was found that all post-intervention anthropometric measurements were similar, but the percentage of decrease in fasting blood glucose, fasting insulin, and HOMA-IR (Homeostasis Model Assessment-Insulin Resistance) values were greater in C (p < .05). In this study, it was concluded that CM consumption resulted with a decrease in insulin resistance-related biochemical parameters independent of body weight change. Nevertheless, MNT has positive effects on women with insulin resistance, and adding lyophilized dried CM to MNT improves insulin resistance-related parameters and may be beneficial for preventing the development of diabetes.
Collapse
Affiliation(s)
- Zehra Margot Celık
- Department of Nutrition and DieteticsMarmara University Faculty of Health SciencesIstanbulTurkey
| | - Mehmet Sargin
- Faculty of Medicine, Family MedicineIstanbul Medeniyet UniversityIstanbulTurkey
| | - Havva Gonca Tamer
- Faculty of Medicine, Internal MedicineIstanbul Medeniyet UniversityIstanbulTurkey
| | - Fatma Esra Gunes
- Department of Nutrition and Dietetics, Faculty of Health SciencesIstanbul Medeniyet UniversityIstanbulTurkey
| |
Collapse
|
3
|
Zulfiqar S, Blando F, Orfila C, Marshall LJ, Boesch C. Chromogenic Assay Is More Efficient in Identifying α-Amylase Inhibitory Properties of Anthocyanin-Rich Samples When Compared to the 3,5-Dinitrosalicylic Acid (DNS) Assay. Molecules 2023; 28:6399. [PMID: 37687228 PMCID: PMC10490044 DOI: 10.3390/molecules28176399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/12/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
The inhibition of carbohydrate digestion by plant bioactive compounds is a potential dietary strategy to counteract type 2 diabetes. Indeed, inhibition of α-amylase, a key enzyme that carries out the bulk of starch digestion, has been demonstrated for a range of bioactive compounds including anthocyanins; however, sample pigmentation often interferes with measurements, affecting colorimetric assay outcomes. Therefore, the present study compared the performance of a direct chromogenic assay, using 2-chloro-4 nitrophenyl α-D-maltotrioside (CNPG3) as a substrate, with the commonly used 3,5-dinitrosalicylic acid (DNS) assay. The direct chromogenic assay demonstrated a 5-10-fold higher sensitivity to determine α-amylase inhibition in various samples, including acarbose as a reference, pure anthocyanins, and anthocyanin-rich samples. The IC50 values of acarbose presented as 37.6 μg/mL and 3.72 μg/mL for the DNS assay and the direct chromogenic assay, respectively, whereas purified anthocyanins from blackcurrant showed IC50 values of 227.4 µg/mL and 35.0 µg/mL. The direct chromogenic assay is easy to perform, fast, reproducible, and suitable for high-throughput screening of pigmented α-amylase inhibitors.
Collapse
Affiliation(s)
- Sadia Zulfiqar
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds LS2 9JT, UK; (S.Z.); (C.O.); (L.J.M.)
| | - Federica Blando
- Institute of Sciences of Food Production (ISPA), National Research Council (CNR), Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy;
| | - Caroline Orfila
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds LS2 9JT, UK; (S.Z.); (C.O.); (L.J.M.)
| | - Lisa J. Marshall
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds LS2 9JT, UK; (S.Z.); (C.O.); (L.J.M.)
| | - Christine Boesch
- School of Food Science and Nutrition, Faculty of Environment, University of Leeds, Leeds LS2 9JT, UK; (S.Z.); (C.O.); (L.J.M.)
| |
Collapse
|
4
|
Paramasivam D, Balasubramanian B, Suresh R, Kumaravelu J, Vellingiri MM, Liu WC, Meyyazhagan A, Alanazi AM, Rengasamy KRR, Arumugam VA. One-Pot Synthesis of Silver Nanoparticles Derived from Aqueous Leaf Extract of Ageratum conyzoides and Their Biological Efficacy. Antibiotics (Basel) 2023; 12:688. [PMID: 37107050 PMCID: PMC10135330 DOI: 10.3390/antibiotics12040688] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023] Open
Abstract
The main objective of the present research work is to assess the biological properties of the aqueous plant extract (ACAE) synthesised silver nanoparticles from the herbal plant Ageratum conyzoides, and their biological applications. The silver nanoparticle syntheses from Ageratum conyzoides (Ac-AgNPs) were optimised with different parameters, such as pH (2, 4, 6, 8 and 10) and varied silver nitrate concentration (1 mM and 5 mM). Based on the UV-vis spectroscopy analysis of the synthesised silver nanoparticles, the concentration of 5 mM with the pH at 8 was recorded as the peak reduction at 400 nm; and these conditions were optimized were used for further studies. The results of the FE-SEM analysis recorded the size ranges (~30-90 nm), and irregular spherical and triangular shapes of the AC-AgNPs were captured. The characterization reports of the HR-TEM investigation of AC-AgNPs were also in line with the FE-SEM studies. The antibacterial efficacies of AC-AgNPs have revealed the maximum zone of inhibition against S. typhi to be within 20 mm. The in vitro antiplasmodial activity of AC-AgNPs is shown to have an effective antiplasmodial property (IC50:17.65 μg/mL), whereas AgNO3 has shown a minimum level of IC50: value 68.03 μg/mL, and the Ac-AE showed >100 μg/mL at 24 h of parasitaemia suppression. The α-amylase inhibitory properties of AC-AgNPs have revealed a maximum inhibition similar to the control Acarbose (IC50: 10.87 μg/mL). The antioxidant activity of the AC-AgNPs have revealed a better property (87.86% ± 0.56, 85.95% ± 1.02 and 90.11 ± 0.29%) when compared with the Ac-AE and standard in all the three different tests, such as DPPH, FRAP and H2O2 scavenging assay, respectively. The current research work might be a baseline for the future drug expansion process in the area of nano-drug design, and its applications also has a lot of economic viability and is a safer method in synthesising or producing silver nanoparticles.
Collapse
Affiliation(s)
- Deepak Paramasivam
- Department of Life Science, Kristu Jayanti College (Autonomous), Affiliated to Bengaluru North University, Bengaluru 560077, Karnataka, India
| | | | - Ramya Suresh
- PG and Research Department of Biotechnology, Dr. N.G.P. Arts and Science College, Autonomous and Affiliated to Bharathiar University, Coimbatore 641048, Tamil Nadu, India
| | - Jayanthi Kumaravelu
- Department of Microbiology and Biotechnology, Bharth Institute of Higher Education and Research, Agharam Road Selaiyur, Chennai 600073, Tamil Nadu, India
| | - Manon Mani Vellingiri
- Department of Biotechnology, Rathnavel Subramaniam College of Arts and Science, Coimbatore 641402, Tamil Nadu, India
| | - Wen-Chao Liu
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Arun Meyyazhagan
- Department of Life Science, CHRIST (Deemed to be University), Bengaluru 560076, Karnataka, India
| | - Amer M Alanazi
- Pharmaceutical Chemistry Department, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Kannan R R Rengasamy
- Laboratory of Natural Products and Medicinal Chemistry (LNPMC), Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, Tamil Nadu, India
| | - Vijaya Anand Arumugam
- Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| |
Collapse
|
5
|
Barrea L, Pugliese G, Frias-Toral E, El Ghoch M, Castellucci B, Chapela SP, Carignano MDLA, Laudisio D, Savastano S, Colao A, Muscogiuri G. Coffee consumption, health benefits and side effects: a narrative review and update for dietitians and nutritionists. Crit Rev Food Sci Nutr 2023; 63:1238-1261. [PMID: 34455881 DOI: 10.1080/10408398.2021.1963207] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Coffee is one of the most popular beverages worldwide; however, its impact on health outcomes and adverse effects is not fully understood. The current review aims to establish an update about the benefits of coffee consumption on health outcomes highlighting its side effects, and finally coming up with an attempt to provide some recommendations on its doses. A literature review using the PubMed/Medline database was carried out and the data were summarized by applying a narrative approach using the available evidence based on the literature. The main findings were the following: first, coffee may contribute to the prevention of inflammatory and oxidative stress-related diseases, such as obesity, metabolic syndrome and type 2 diabetes; second, coffee consumption seems to be associated with a lower incidence of several types of cancer and with a reduction in the risk of all-cause mortality; finally, the consumption of up to 400 mg/day (1-4 cups per day) of caffeine is safe. However, the time gap between coffee consumption and some drugs should be taken into account in order to avoid interaction. However, most of the data were based on cross-sectional or/and observational studies highlighting an association of coffee intake and health outcomes; thus, randomized controlled studies are needed in order to identify a causality link.
Collapse
Affiliation(s)
- Luigi Barrea
- Dipartimento di Scienze Umanistiche, Università Telematica Pegaso, Via Porzio, Centro Direzionale, isola F2, 80143 Napoli, Italy
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Endocrinology Unit, Department of Clinical Medicine and Surgery, University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Gabriella Pugliese
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Endocrinology Unit, Department of Clinical Medicine and Surgery, University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Evelyn Frias-Toral
- School of Medicine, Universidad Católica Santiago de Guayaquil, Guayaquil, Ecuador
| | - Marwan El Ghoch
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Beirut Arab University, P.O. Box 11-5020 Riad El Solh, Beirut 11072809, Lebanon
| | - Bianca Castellucci
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Endocrinology Unit, Department of Clinical Medicine and Surgery, University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Sebastián Pablo Chapela
- Universidad de Buenos Aires, Facultad de Medicina, Departamento de Bioquímica Humana, Buenos Aires, Argentina
- Hospital Británico de Buenos Aires, Departamento de Terapia Intensiva, Buenos Aires, Argentina
| | | | - Daniela Laudisio
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Endocrinology Unit, Department of Clinical Medicine and Surgery, University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Silvia Savastano
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Endocrinology Unit, Department of Clinical Medicine and Surgery, University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Annamaria Colao
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Endocrinology Unit, Department of Clinical Medicine and Surgery, University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
- Cattedra Unesco "Educazione alla salute e allo sviluppo sostenibile", University Federico II, Naples, Italy
| | - Giovanna Muscogiuri
- Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Endocrinology Unit, Department of Clinical Medicine and Surgery, University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
- Dipartimento di Medicina Clinica e Chirurgia, Unit of Endocrinology, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
- Cattedra Unesco "Educazione alla salute e allo sviluppo sostenibile", University Federico II, Naples, Italy
| |
Collapse
|
6
|
Akinnusi PA, Olubode SO, Alade AA, Ashimi AA, Onawola OL, Agbolade AO, Emeka AP, Shodehinde SA, Adeniran OY. Potential Inhibitory Biomolecular Interactions of Natural Compounds With Different Molecular Targets of Diabetes. Bioinform Biol Insights 2023; 17:11779322231167970. [PMID: 37124131 PMCID: PMC10134171 DOI: 10.1177/11779322231167970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 03/17/2023] [Indexed: 05/02/2023] Open
Abstract
Type II diabetes is an endemic disease and is responsible for approximately 90% to 95% of diabetes cases. The pathophysiological distortions are majorly β-cell dysfunction, insulin resistance, and long-term inflammation, which all progressively unsettle the control of blood glucose levels and trigger microvascular and macrovascular complications. The diverse pathological disruptions which patients with type II diabetes mellitus exhibit precipitate the opinion that different antidiabetic agents, administered in combination, might be required to curb this menace and maintain normal blood glucose. To this end, natural compounds were screened to identify small molecular weight compounds with inhibitory effects on protein tyrosine phosphatase 1B (PTP1B), dipeptidyl-peptidase-4 (DPP-4), and α-amylase. From the result, the top 5 anthocyanins with the highest binding affinity are reported herein. Further ADMET profiling showed moderate pharmacokinetic profiles for these compounds as well as insignificant toxicity. Cyanidin 3-(p-coumaroyl)-diglucoside-5-glucoside (-15.272 kcal/mol), cyanidin 3-O-(6"-malonyl-3"-glucosyl-glucoside) (-9.691 kcal/mol), and delphinidin 3,5-O-diglucoside (-12.36 kcal/mol) had the highest binding affinities to PTP1B, DPP-4, and α-amylase, respectively, and can be used in combination to control glucose fluctuations. However, validations must be carried out through further in vitro and in vivo tests.
Collapse
Affiliation(s)
- Precious A Akinnusi
- Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Nigeria
- Department of Biochemistry, Federal University of Oye-Ekiti, Oye-Ekiti, Nigeria
- Precious A Akinnusi, Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko 342111, Ondo, Nigeria.
| | - Samuel O Olubode
- Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Nigeria
| | - Adebowale A Alade
- Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Nigeria
| | - Aderemi A Ashimi
- Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Nigeria
| | - Olamide L Onawola
- Department of Microbiology, Lagos State University, Ojo, Nigeria
- Molecular Biology Research Laboratory, Department of Microbiology, Covenant University, Ota, Nigeria
| | - Abigail O Agbolade
- Department of Biochemistry, Federal University of Oye-Ekiti, Oye-Ekiti, Nigeria
- Department of Biochemistry, Osun State University, Osogbo, Nigeria
| | - Adaobi P Emeka
- Department of Biological Sciences, Godfrey Okoye University, Enugu, Nigeria
| | | | - Olawole Y Adeniran
- Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Nigeria
| |
Collapse
|
7
|
Ye Z, Liu Y. Polyphenolic compounds from rapeseeds (Brassica napus L.): The major types, biofunctional roles, bioavailability, and the influences of rapeseed oil processing technologies on the content. Food Res Int 2023; 163:112282. [PMID: 36596189 DOI: 10.1016/j.foodres.2022.112282] [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: 09/13/2022] [Revised: 11/26/2022] [Accepted: 11/29/2022] [Indexed: 12/09/2022]
Abstract
The rapeseed (Brassica napus L.) are the important oil bearing material worldwide, which contain wide variety of bioactive components with polyphenolic compounds considered the most typical. The rapeseed polyphenols encompass different structural variants, and have been considered to have many bioactive functions, which are beneficial for the human health. Whereas, the rapeseed oil processing technologies affect their content and the biofunctional activities. The present review of the literature highlighted the major types of the rapeseed polyphenols, and summarized their biofunctional roles. The influences of rapeseed oil processing technologies on these polyphenols were also elucidated. Furthermore, the directions of the future studies for producing nutritional rapeseed oils preserved higher level of polyphenols were prospected. The rapeseed polyphenols are divided into the phenolic acids and polyphenolic tannins, both of which contained different subtypes. They are reported to have multiple biofunctional roles, thus showing outstanding health improvement effects. The rapeseed oil processing technologies have significant effects on both of the polyphenol content and activity. Some novel processing technologies, such as aqueous enzymatic extraction (AEE), subcritical or supercritical extraction showed advantages for producing rapeseed oil with higher level of polyphenols. The oil refining process involved heat or strong acid and alkali conditions affected their stability and activity, leading to the loss of polyphenols of the final products. Future efforts are encouraged to provide more clinic evidence for the practical applications of the rapeseed polyphenols, as well as optimizing the processing technologies for the green manufacturing of rapeseed oils.
Collapse
Affiliation(s)
- Zhan Ye
- School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi 214122, Jiangsu, PR China; State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi 214122, Jiangsu, PR China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, PR China; National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, PR China.
| | - Yuanfa Liu
- School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi 214122, Jiangsu, PR China; State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi 214122, Jiangsu, PR China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, PR China; National Engineering Research Center for Functional Food, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, PR China.
| |
Collapse
|
8
|
Liu X, Tian J, Pan Y, Li Z, Zhou Z, Pan Z, Tai H, Xing Y. Structural Characterization and Biological Activity of Polysaccharides from Stems of Houttuynia cordata. Foods 2022; 11:foods11223622. [PMID: 36429215 PMCID: PMC9689641 DOI: 10.3390/foods11223622] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/27/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, water-soluble natural polysaccharides were extracted from the stems of Houttuynia cordata Thunb (HCPS). The optimization of the hot water extraction process using response surface methodology (RSM), and the extraction factors, were analyzed by multiple stepwise regression analysis and Pearson analysis. Then, the structural characterization and biological activity of the HCPS were investigated. The results indicated that the maximum extraction yield (2.43%) of the HCPS was obtained at the optimal condition (extraction temperature for 90 °C, extraction time for 5 h, solid-liquid ratio for 1:30 g/mL). The extraction temperature was determined to be the primary factor influencing the extraction yield. The HCPS molecules had an average molecular weight of 8.854 × 103 kDa and were primarily of mannose (Man), rhamnose (Rha), glucuronic acid (GlcA), galacturonic acid (GalA), glucose (Glc), and xylose (Xyl). In addition, the backbone of the HCPS might consist of →6)-α-d-Glcp-(1→ and →6)-β-d-GalpA-(1→. The HCPS had no triple-helix structure. The scanning electron microscopy (SEM) results showed that the HCPS presented a smooth and uniform appearance, and some sheet and chain structures existed. Moreover, the HCPS exhibited significant anti-oxidant activity and inhibited the activity of α-amylase and α-glucosidase. These findings showed that HCPS might be developed into a potential material for hypoglycemia, and provides a reference for the development of Houttuynia cordata polysaccharide applications in food.
Collapse
Affiliation(s)
- Xiaocui Liu
- Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
- Correspondence:
| | - Jin Tian
- Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yinzhen Pan
- Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Zhongqiao Li
- Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Zhiran Zhou
- Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Zihao Pan
- Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Huazhang Tai
- Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
| | - Yage Xing
- Key Laboratory of Grain and Oil Processing and Food Safety of Sichuan Province, College of Food and Bioengineering, Xihua University, Chengdu 610039, China
- Key Laboratory of Food Non Thermal Processing, Engineering Technology Research Center of Food Non Thermal Processing, Yibin Xihua University Research Institute, Yibin 644004, China
| |
Collapse
|
9
|
Miller N, Joubert E. Critical Assessment of In Vitro Screening of α-Glucosidase Inhibitors from Plants with Acarbose as a Reference Standard. PLANTA MEDICA 2022; 88:1078-1091. [PMID: 34662924 DOI: 10.1055/a-1557-7379] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Postprandial hyperglycemia is treated with the oral antidiabetic drug acarbose, an intestinal α-glucosidase inhibitor. Side effects of acarbose motivated a growing number of screening studies to identify novel α-glucosidase inhibitors derived from plant extracts and other natural sources. As "gold standard", acarbose is frequently included as the reference standard to assess the potency of these candidate α-glucosidase inhibitors, with many outperforming acarbose by several orders of magnitude. The results are subsequently used to identify suitable compounds/products with strong potential for in vivo efficacy. However, most α-glucosidase inhibitor screening studies use enzyme preparations obtained from nonmammalian sources (typically Saccharomyces cerevisiae), despite strong evidence that inhibition data obtained using nonmammalian α-glucosidase may hold limited value in terms of identifying α-glucosidase inhibitors with actual in vivo hypoglycemic potential. The aim was to critically discuss the screening of novel α-glucosidase inhibitors from plant sources, emphasizing inconsistencies and pitfalls, specifically where acarbose was included as the reference standard. An assessment of the available literature emphasized the cruciality of stating the biological source of α-glucosidase in such screening studies to allow for unambiguous and rational interpretation of the data. The review also highlights the lack of a universally adopted screening assay for novel α-glucosidase inhibitors and the commercial availability of a standardized preparation of mammalian α-glucosidase.
Collapse
Affiliation(s)
- Neil Miller
- Department of Food Science, Stellenbosch University, South Africa
- Plant Bioactives Group, Post-Harvest & Agro-Processing Technologies, Agricultural Research Council (ARC) Infruitec-Nietvoorbij, Stellenbosch, South Africa
| | - Elizabeth Joubert
- Department of Food Science, Stellenbosch University, South Africa
- Plant Bioactives Group, Post-Harvest & Agro-Processing Technologies, Agricultural Research Council (ARC) Infruitec-Nietvoorbij, Stellenbosch, South Africa
| |
Collapse
|
10
|
Efficacy of Rytigynia senegalensis Blume on Free Radical Scavenging, Inhibition of α-Amylase and α-Glucosidase Activity, and Blood Glucose Level. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:9519743. [PMID: 36204130 PMCID: PMC9532085 DOI: 10.1155/2022/9519743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/21/2022] [Accepted: 08/27/2022] [Indexed: 11/22/2022]
Abstract
Rytigynia senegalensis (Rubiaceae) is a plant used in African medicine for the treatment of diabetes. The aim of this study was to evaluate the in vitro antioxidant, enzyme inhibitory, and hypoglycemic effects of Rytigynia senegalensis extract (RSE). The contents of phenols, tannins, and flavonoids were determined by phytochemical screening. 2,2-Azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and 2,2-diphenylpicrylhydrazyl (DPPH) were determined to evaluate the free radical scavenging capacity of the RSE. The inhibitory activity of α-amylase and α-glucosidase was evaluated in vitro using the α-amylase and α-glucosidase inhibition methods and in vivo using the sucrose and starch tolerance tests. The glucose tolerance test was performed on normal rats using doses of 50, 100, and 200 mg/kg of RSE. RSE contains total phenols (36.35 mg GAE/g of extract), flavonoids (11.91 mg QE/g of extract), and tannins (13.01 mg CE/g of extract). RSE exhibits significant radical scavenging activity on DPPH and ABTS radicals with an IC50 of 17.51 and 21.89 μg/mL, respectively. RSE showed an inhibitory effect on the activity of α-amylase and α-glucosidase with an IC50 of 308.93 and 354.13 μg/mL, respectively. RSE (100 and 200 mg/kg) caused a significant decrease in area under the curve and postprandial glycemia at 60, 90, and 120 min following the administration of starch or sucrose. Regarding the glucose tolerance test, RSE (100 and 200 mg/kg) significantly reduced postprandial hyperglycemia from the 90th min posttreatment. RSE lowered postprandial hyperglycemia and has antioxidant properties. These effects would be due to the presence of bioactive compounds in the RSE.
Collapse
|
11
|
Myo H, Khat-Udomkiri N. Optimization of ultrasound-assisted extraction of bioactive compounds from coffee pulp using propylene glycol as a solvent and their antioxidant activities. ULTRASONICS SONOCHEMISTRY 2022; 89:106127. [PMID: 36007328 PMCID: PMC9424582 DOI: 10.1016/j.ultsonch.2022.106127] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/31/2022] [Accepted: 08/14/2022] [Indexed: 06/15/2023]
Abstract
In the cosmetic and pharmaceutical industries, it has been increasingly popular to use alternative solvents in the extraction of bioactive compounds from plants. Coffee pulp, a by-product of coffee production, contains different phenolic compounds with antioxidant properties. The effects of polyols, amplitude, extraction time, solvent concentration, and liquid-solid ratio on total phenolic content (TPC) using ultrasound-assisted extraction (UAE) were examined by single-factor studies. Three main factors that impact TPC were selected to optimize the extraction conditions for total phenolic content (TPC), total flavonoid content (TFC), total tannin content (TTC), and their antioxidant activities using the Box-Behnken design. Different extraction methods were compared, the bioactive compounds were identified and quantified by liquid chromatography triple quadrupole mass spectrometer (LC-QQQ), and the cytotoxicity and cellular antioxidant activities of the extract were studied. According to the response model, the optimal conditions for the extraction of antioxidants from coffee pulp were as follows: extraction time of 7.65 min, liquid-solid ratio of 22.22 mL/g, and solvent concentration of 46.71 %. Under optimized conditions, the values of TPC, TFC, TTC, 1,1-diphenyl-2-picryl-hydrazil (DPPH) radical scavenging assay, 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) radical scavenging assay, and Ferric reducing antioxidant power assay (FRAP) were 9.29 ± 0.02 mg GAE/g sample, 58.82 ± 1.38 mg QE/g sample, 8.69 ± 0.25 mg TAE/g sample, 7.56 ± 0.27 mg TEAC/g sample, 13.59 ± 0.25 mg TEAC/g sample, and 10.90 ± 0.24 mg FeSO4/g sample, respectively. Compared with other extraction conditions, UAE with propylene glycol extract (PG-UAE) was significantlyhigher in TPC, TFC, TTC, DPPH, ABTS, and FRAP response values than UAE with ethanol (EtOH-UAE), maceration with propylene glycol (PG-maceration), and maceration with ethanol (EtOH -maceration) (p < 0.05). Major bioactive compounds detected by LC-QQQ included chlorogenic acid, caffeine, and trigonelline. At higher concentrations starting from 5 mg/ml, PG-UAE extract showed higher cell viability than EtOH-UAE in both cytotoxicity and cellular antioxidant assays. The researcher expects that this new extraction technique developed in this work could produce a higher yield of bioactive compounds with higher biological activity. Therefore, they can be used as active ingredients in cosmetics (anti-aging products) and pharmaceutical applications (food supplements, treatment for oxidative stress-related diseases) with minimal use of chemicals and energy.
Collapse
Affiliation(s)
- Hla Myo
- School of Cosmetic Science, Mae Fah Luang University, Chiang Rai 57100, Thailand.
| | | |
Collapse
|
12
|
Krishnan V, Verma P, Saha S, Singh B, Vinutha T, Kumar R, Kulshreshta A, Singh S, Sathyavathi T, Sachdev A, Praveen S. Polyphenol-enriched extract from pearl millet (Pennisetum glaucum) inhibits key enzymes involved in post prandial hyper glycemia (α-amylase, α-glucosidase) and regulates hepatic glucose uptake. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
13
|
Oluwole O, Fernando WMADB, Lumanlan J, Jayasena V. Role of phenolic acid, tannins, stilbenes, lignans and flavonoids in human health – a review. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Oluwatoyin Oluwole
- Department of Food Technology Federal Institute of Industrial Research Oshodi Lagos Nigeria
| | - WMAD Binosha Fernando
- Centre of Excellence for Alzheimer's Disease Research and Care School of Medical and Health Sciences Edith Cowan University, SNRI, 8 Verdun St Nedlands Western Australia 6009
| | - Jane Lumanlan
- School of Science Western Sydney University Bourke St Richmond 2753
| | - Vijay Jayasena
- School of Science Western Sydney University Bourke St Richmond 2753
| |
Collapse
|
14
|
Gao J, Koh AHS, Zhou W. Enhancing health benefits of bakery products using phytochemicals. ADVANCES IN FOOD AND NUTRITION RESEARCH 2022; 99:239-281. [PMID: 35595395 DOI: 10.1016/bs.afnr.2021.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
There has been a growing interest in functional bakery products with enhanced health benefits, especially the prevention of some chronic diseases such as type 2 diabetes, cardiovascular diseases and neurodegenerative disorders. Fortification of wheat flour with phytochemicals, plant components with various bio-activities, is one of the promising approaches to improving public health with the ubiquitous consumption of baked goods. This chapter reviews the current knowledge of several representative phytochemicals, mainly plant polyphenols, including catechins, anthocyanins, fucoidan and quercetin extracted from various plant resources, and their application in bakery products, regarding their stability, impact on product quality and potential health benefits.
Collapse
Affiliation(s)
- Jing Gao
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Audrey Hui Si Koh
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | - Weibiao Zhou
- Department of Food Science and Technology, National University of Singapore, Singapore, Singapore.
| |
Collapse
|
15
|
Antioxidant, Enzyme Inhibitory, and Molecular Docking Approaches to the Antidiabetic Potentials of Bioactive Compounds from Persicaria hydropiper L. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:6705810. [PMID: 35463090 PMCID: PMC9023165 DOI: 10.1155/2022/6705810] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/02/2022] [Accepted: 03/31/2022] [Indexed: 02/08/2023]
Abstract
Introduction Natural products are among the most useful sources for the discovery of new drugs against various diseases. Keeping in view the ethnobotanical relevance ethnopharmacological significance of Polygonaceae family in diabetes, the current study was designed to isolate pure compounds from Persicaria hydropiper L. leaves and evaluate their in vitro and in silico antidiabetic potentials. Methods Six compounds were isolated from the chloroform-ethyl acetate fractions using gravity column chromatography and were subjected to structure elucidation process. Structures were confirmed using 1H-NMR, 13C-NMR, and mass spectrometry techniques. Isolated phytochemicals were subjected to in vitro antidiabetic studies, including α-glucosidase, α-amylase inhibition, and DPPH, and ABTS antioxidant studies. Furthermore, the in silico binding mode of these compounds in the target enzymes was elucidated via MOE-Dock software. Results The isolated compounds revealed concentration-dependent inhibitions against α-glucosidase enzyme. Ph-1 and Ph-2 were most potent with 81.84 and 78.79% enzyme inhibitions at 1000 µg·mL−1, respectively. Ph-1 and Ph-2 exhibited IC50s of 85 and 170 µg·mL−1 correspondingly. Likewise, test compounds showed considerable α-amylase inhibitions with Ph-1 and Ph-2 being the most potent. Tested compounds exhibited considerable antioxidant potentials in both DPPH and ABTS assays. Molecular simulation studies also revealed top-ranked confirmations for the majority of the compounds in the target enzymes. Highest observed potent compound was Ph-1 with docking score of −12.4286 and formed eight hydrogen bonds and three H-pi linkages with the Asp 68, Phe 157, Phe 177, Asn 241, Glu 276, His 279, Phe 300, Glu 304, Ser 308, Pro 309, Phe 310, Asp 349, and Arg 439 residues of α-glucosidase binding packets. Asp 68, Glu 276, Asp 349, and Arg 439 formed polar bonds with the 3-ethyl-2-methylpentane moiety of the ligand. Conclusions The isolated compounds exhibited considerable antioxidant and inhibitory potentials against vital enzymes implicated in T2DM. The docking scores of the compounds revealed that they exhibit affinity for binding with target ligands. The enzyme inhibition and antioxidant potential of the compounds might contribute to the hypoglycemic effects of the plant and need further studies.
Collapse
|
16
|
Abot A, Brochot A, Pomié N, Wemelle E, Druart C, Régnier M, Delzenne NM, de Vos WM, Knauf C, Cani PD. Camu-Camu Reduces Obesity and Improves Diabetic Profiles of Obese and Diabetic Mice: A Dose-Ranging Study. Metabolites 2022; 12:metabo12040301. [PMID: 35448490 PMCID: PMC9025096 DOI: 10.3390/metabo12040301] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/21/2022] [Accepted: 03/25/2022] [Indexed: 11/16/2022] Open
Abstract
Overweight, obesity, and their comorbidities are currently considered a major public health concern. Today considerable efforts are still needed to develop efficient strategies able to attenuate the burden of these diseases. Nutritional interventions, some with plant extracts, present promising health benefits. In this study, we evaluated the action of Camu-Camu (Myrciaria dubia), an Amazonian fruit rich in polyphenols and vitamin C, on the prevention of obesity and associated disorders in mice and the abundance of Akkermansia muciniphila in both cecum and feces. Methods: We investigated the dose-response effects of Camu-Camu extract (CCE) in the context of high-fat-diet (HFD)-induced obesity. After 5 weeks of supplementation, we demonstrated that the two doses of CCE differently improved glucose and lipid homeostasis. The lowest CCE dose (62.5 mg/kg) preferentially decreased non-HDL cholesterol and free fatty acids (FFA) and increased the abundance of A. muciniphila without affecting liver metabolism, while only the highest dose of CCE (200 mg/kg) prevented excessive body weight gain, fat mass gain, and hepatic steatosis. Both doses decreased fasting hyperglycemia induced by HFD. In conclusion, the use of plant extracts, and particularly CCE, may represent an additional option in the support of weight management strategies and glucose homeostasis alteration by mechanisms likely independent from the modulation of A. muciniphila abundance.
Collapse
Affiliation(s)
- Anne Abot
- Enterosys SAS, 31670 Labège, France; (A.A.); (N.P.)
| | - Amandine Brochot
- A-Mansia Biotech SA, The Akkermansia Company, 1435 Mont-Saint-Guibert, Belgium; (A.B.); (C.D.)
| | | | - Eve Wemelle
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1220, Institut de Recherche en Santé Digestive et Nutrition (IRSD), Université Paul Sabatier (UPS), 31000 Toulouse, France;
- NeuroMicrobiota Lab, International Research Program (IRP) INSERM, 31000 Toulouse, France
| | - Céline Druart
- A-Mansia Biotech SA, The Akkermansia Company, 1435 Mont-Saint-Guibert, Belgium; (A.B.); (C.D.)
| | - Marion Régnier
- WELBIO—Walloon Excellence in Life Sciences and BIOtechnology, Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (M.R.); (N.M.D.)
| | - Nathalie M. Delzenne
- WELBIO—Walloon Excellence in Life Sciences and BIOtechnology, Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (M.R.); (N.M.D.)
| | - Willem M. de Vos
- Laboratory of Microbiology, Wageningen University, 6708 WE Wageningen, The Netherlands;
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Claude Knauf
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1220, Institut de Recherche en Santé Digestive et Nutrition (IRSD), Université Paul Sabatier (UPS), 31000 Toulouse, France;
- NeuroMicrobiota Lab, International Research Program (IRP) INSERM, 31000 Toulouse, France
- Correspondence: (C.K.); (P.D.C.)
| | - Patrice D. Cani
- NeuroMicrobiota Lab, International Research Program (IRP) INSERM, 31000 Toulouse, France
- WELBIO—Walloon Excellence in Life Sciences and BIOtechnology, Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Université Catholique de Louvain (UCLouvain), 1200 Brussels, Belgium; (M.R.); (N.M.D.)
- Correspondence: (C.K.); (P.D.C.)
| |
Collapse
|
17
|
Jayawardana SAS, Samarasekera JKRR, Hettiarachchi GHCM, Gooneratne MJ. Antidiabetic properties of finger millet (Eleusine coracana (L.) Gaertn.) varieties cultivated in Sri Lanka. J Herb Med 2022. [DOI: 10.1016/j.hermed.2022.100534] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
18
|
Abstract
Tannins are an interesting class of polyphenols, characterized, in almost all cases, by a different degree of polymerization, which, inevitably, markedly influences their bioavailability, as well as biochemical and pharmacological activities. They have been used for the process of tanning to transform hides into leather, from which their name derives. For several time, they have not been accurately evaluated, but now researchers have started to unravel their potential, highlighting anti-inflammatory, antimicrobial, antioxidant and anticancer activities, as well as their involvement in cardiovascular, neuroprotective and in general metabolic diseases prevention. The mechanisms underlying their activity are often complex, but the main targets of their action (such as key enzymes modulation, activation of metabolic pathways and changes in the metabolic fluxes) are highlighted in this review, without losing sight of their toxicity. This aspect still needs further and better-designed study to be thoroughly understood and allow a more conscious use of tannins for human health.
Collapse
|
19
|
Deng XY, Ke JJ, Zheng YY, Li DL, Zhang K, Zheng X, Wu JY, Xiong Z, Wu PP, Xu XT. Synthesis and bioactivities evaluation of oleanolic acid oxime ester derivatives as α-glucosidase and α-amylase inhibitors. J Enzyme Inhib Med Chem 2022; 37:451-461. [PMID: 35012401 PMCID: PMC8757604 DOI: 10.1080/14756366.2021.2018682] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Different oleanolic acid (OA) oxime ester derivatives (3a-3t) were designed and synthesised to develop inhibitors against α-glucosidase and α-amylase. All the synthesised OA derivatives were evaluated against α-glucosidase and α-amylase in vitro. Among them, compound 3a showed the highest α-glucosidase inhibition with an IC50 of 0.35 µM, which was ∼1900 times stronger than that of acarbose, meanwhile compound 3f exhibited the highest α-amylase inhibitory with an IC50 of 3.80 µM that was ∼26 times higher than that of acarbose. The inhibition kinetic studies showed that the inhibitory mechanism of compounds 3a and 3f were reversible and mixed types towards α-glucosidase and α-amylase, respectively. Molecular docking studies analysed the interaction between compound and two enzymes, respectively. Furthermore, cytotoxicity evaluation assay demonstrated a high level of safety profile of compounds 3a and 3f against 3T3-L1 and HepG2 cells.Highlights Oleanolic acid oxime ester derivatives (3a–3t) were synthesised and screened against α-glucosidase and α-amylase. Compound 3a showed the highest α-glucosidase inhibitory with IC50 of 0.35 µM. Compound 3f presented the highest α-amylase inhibitory with IC50 of 3.80 µM. Kinetic studies and in silico studies analysed the binding between compounds and α-glucosidase or α-amylase.
Collapse
Affiliation(s)
- Xu-Yang Deng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, P.R. China
| | - Jun-Jie Ke
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, P.R. China
| | - Ying-Ying Zheng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, P.R. China
| | - Dong-Li Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, P.R. China
| | - Kun Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, P.R. China
| | - Xi Zheng
- Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Jing-Ying Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, P.R. China
| | - Zhuang Xiong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, P.R. China
| | - Pan-Pan Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, P.R. China
| | - Xue-Tao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, P.R. China
| |
Collapse
|
20
|
Akinyede KA, Oyewusi HA, Hughes GD, Ekpo OE, Oguntibeju OO. In Vitro Evaluation of the Anti-Diabetic Potential of Aqueous Acetone Helichrysum petiolare Extract (AAHPE) with Molecular Docking Relevance in Diabetes Mellitus. MOLECULES (BASEL, SWITZERLAND) 2021; 27:molecules27010155. [PMID: 35011387 PMCID: PMC8746515 DOI: 10.3390/molecules27010155] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 12/14/2022]
Abstract
Diabetes mellitus (DM) is a chronic metabolic condition that can lead to significant complications and a high fatality rate worldwide. Efforts are ramping up to find and develop novel α-glucosidase and α-amylase inhibitors that are both effective and potentially safe. Traditional methodologies are being replaced with new techniques that are less complicated and less time demanding; yet, both the experimental and computational strategies are viable and complementary in drug discovery and development. As a result, this study was conducted to investigate the in vitro anti-diabetic potential of aqueous acetone Helichrysum petiolare and B.L Burtt extract (AAHPE) using a 2-NBDG, 2-(N-(7-Nitrobenz-2-oxa-1,3-diazol-4-yl) amino)-2-deoxy-d-glucose uptake assay. In addition, we performed molecular docking of the flavonoid constituents identified and quantified by liquid chromatography-mass spectrometry (LC-MS) from AAHPE with the potential to serve as effective and safe α-amylase and α-glucosidase inhibitors, which are important in drug discovery and development. The results showed that AAHPE is a potential inhibitor of both α-amylase and α-glucosidase, with IC50 values of 46.50 ± 6.17 (µg/mL) and 37.81 ± 5.15 (µg/mL), respectively. This is demonstrated by a significant increase in the glucose uptake activity percentage in a concentration-dependent manner compared to the control, with the highest AAHPE concentration of 75 µg/mL of glucose uptake activity being higher than metformin, a standard anti-diabetic drug, in the insulin-resistant HepG2 cell line. The molecular docking results displayed that the constituents strongly bind α-amylase and α-glucosidase while achieving better binding affinities that ranged from ΔG = -7.2 to -9.6 kcal/mol (compared with acarbose ΔG = -6.1 kcal/mol) for α-amylase, and ΔG = -7.3 to -9.0 kcal/mol (compared with acarbose ΔG = -6.3 kcal/mol) for α-glucosidase. This study revealed the potential use of the H. petiolare plant extract and its phytochemicals, which could be explored to develop potent and safe α-amylase and α-glucosidase inhibitors to treat postprandial glycemic levels in diabetic patients.
Collapse
Affiliation(s)
- Kolajo Adedamola Akinyede
- Department of Medical Bioscience, University of the Western Cape, Bellville, Cape Town 7530, South Africa; (G.D.H.); (O.E.E.)
- Biochemistry Unit, Department of Science Technology, The Federal Polytechnic P.M.B.5351, Ado Ekiti 360231, Ekiti State, Nigeria;
- Correspondence: (K.A.A.); (O.O.O.); Tel.: +27-839-612-040 (K.A.A.); +27-219-538-495 (O.O.O.)
| | - Habeebat Adekilekun Oyewusi
- Biochemistry Unit, Department of Science Technology, The Federal Polytechnic P.M.B.5351, Ado Ekiti 360231, Ekiti State, Nigeria;
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, UTM, Johor Bahru 81310, Johor, Malaysia
| | - Gail Denise Hughes
- Department of Medical Bioscience, University of the Western Cape, Bellville, Cape Town 7530, South Africa; (G.D.H.); (O.E.E.)
| | - Okobi Eko Ekpo
- Department of Medical Bioscience, University of the Western Cape, Bellville, Cape Town 7530, South Africa; (G.D.H.); (O.E.E.)
- Department of Anatomy and Cellular Biology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Oluwafemi Omoniyi Oguntibeju
- Phytomedicine and Phytochemistry Group, Oxidative Stress Research Centre, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, P.O. Box 1906, Bellville 7535, South Africa
- Correspondence: (K.A.A.); (O.O.O.); Tel.: +27-839-612-040 (K.A.A.); +27-219-538-495 (O.O.O.)
| |
Collapse
|
21
|
Changes in Bioactive Compounds of Coffee Pulp through Fermentation-Based Biotransformation Using Lactobacillus plantarum TISTR 543 and Its Antioxidant Activities. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7040292] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The use of biotransformation has become a popular trend in the food and cosmetic industry. Lactic acid bacteria (LAB) are widely used due to their safety and beneficial effects on human health. Coffee pulp, a by-product obtained from coffee production, has antioxidant activity because it contains different classes of phenolic compounds. To investigate the factors affecting the biotransformation process of coffee pulp using L. plantarum TISTR 543, a systematic study using 23 factorial designs in a completely randomized design (CRD) was done. After the coffee pulp was bio-transformed, its bacterial count, pH, phenol contents, flavonoid contents, tannin contents, changes in bioactive compounds by LC-QQQ, and antioxidant properties were studied. The highest phenolic content was obtained in the sample containing the substrate, water, and sugar in the ratio of 3:10:3 with a 5% starter. After the fermentation was done, for 24–72 h, total bacteria count, total phenol contents, and antioxidant activities significantly increased compared to their initial values. Protocatechuic acid also markedly increased after 24 h of the biotransformation process. Hence, the fermentation of coffee pulp with L. plantarum TISTR 543 can produce substances with a higher biological activity which can be further studied and used as functional foods or active ingredients in cosmetic application.
Collapse
|
22
|
Sasani N, Kazemi A, Rezaiyan M, Amiri-Ardekani E, Akhlaghi M, Babajafari S, Mazloomi SM. Effect of Artemisia extract on glycemic control: A systematic review and meta-analysis of randomized controlled trial. Int J Clin Pract 2021; 75:e14719. [PMID: 34390100 DOI: 10.1111/ijcp.14719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 08/09/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND AND AIM Animal and human studies have indicated anti-diabetic effect of Asteraceae. The present study aimed to systematically review and analyse randomized controlled trials assessing the effect of Artemisia extract on glycemic status in patients with impaired glycemic control. METHODS Web of Science, Cochrane library, EMBASE and PubMed databases were searched from the earliest possible date up to 7th October 2020. RESULTS Six studies were included in the meta-analysis. Analysis showed that supplementation with Artemisia extract decreased homeostatic model assessment of insulin resistance (HOMA-IR) (-0.734, 95% CI: -1.236 to -0.232, P = .019) in comparison to placebo. However, reductions in fasting blood glucose (FBG) (-0.595, 95% CI: -1.566 to 0.376, P = .164), insulin (-0.322, 95% CI: -1.047 to 0.404, P = .286) and glycated haemoglobin (-0.106, 95% CI: -0.840 to 0.629, P = .678) were not statistically significant. CONCLUSION Supplementation with Artemisia extract may reduce HOMA-IR, but beneficial effects on other markers such as FBG requires further investigations.
Collapse
Affiliation(s)
- Najmeh Sasani
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Asma Kazemi
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mojtaba Rezaiyan
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ehsan Amiri-Ardekani
- Department of Phytopharmaceuticals (Traditional Pharmacy), Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
- Student Association of Indigenous Knowledge, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masoumeh Akhlaghi
- Department of Community Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Siavash Babajafari
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Mohammad Mazloomi
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
23
|
Inhibitory Effect of Fisetin on α-Glucosidase Activity: Kinetic and Molecular Docking Studies. Molecules 2021; 26:molecules26175306. [PMID: 34500738 PMCID: PMC8434554 DOI: 10.3390/molecules26175306] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/25/2021] [Accepted: 08/27/2021] [Indexed: 11/22/2022] Open
Abstract
The inhibition of α-glucosidase is a clinical strategy for the treatment of type 2 diabetes mellitus (T2DM), and many natural plant ingredients have been reported to be effective in alleviating hyperglycemia by inhibiting α-glucosidase. In this study, the α-glucosidase inhibitory activity of fisetin extracted from Cotinus coggygria Scop. was evaluated in vitro. The results showed that fisetin exhibited strong inhibitory activity with an IC50 value of 4.099 × 10−4 mM. Enzyme kinetic analysis revealed that fisetin is a non-competitive inhibitor of α-glucosidase, with an inhibition constant value of 0.01065 ± 0.003255 mM. Moreover, fluorescence spectrometric measurements indicated the presence of only one binding site between fisetin and α-glucosidase, with a binding constant (lgKa) of 5.896 L·mol−1. Further molecular docking studies were performed to evaluate the interaction of fisetin with several residues close to the inactive site of α-glucosidase. These studies showed that the structure of the complex was maintained by Pi-Sigma and Pi-Pi stacked interactions. These findings illustrate that fisetin extracted from Cotinus coggygria Scop. is a promising therapeutic agent for the treatment of T2DM.
Collapse
|
24
|
Ban X, Guo Y, Kaustubh B, Li C, Gu Z, Hu K, Li Z. The Global Amylase Research Trend in Food Science Technology: A Data-Driven Analysis. FOOD REVIEWS INTERNATIONAL 2021. [DOI: 10.1080/87559129.2021.1961267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Xiaofeng Ban
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Ya Guo
- Key Laboratory of Advanced Process Control for Light Industry, Ministry of Education, Jiangnan University, Wuxi, China
| | - Bhalerao Kaustubh
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, USA
| | - Caiming Li
- School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Zhengbiao Gu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, Wuxi, China
| | - Kai Hu
- Key Laboratory of Advanced Process Control for Light Industry, Ministry of Education, Jiangnan University, Wuxi, China
| | - Zhaofeng Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
| |
Collapse
|
25
|
Yuca H, Özbek H, Demirezer LÖ, Kasil HG, Güvenalp Z. trans-Tiliroside: A potent α-glucosidase inhibitor from the leaves of Elaeagnus angustifolia L. PHYTOCHEMISTRY 2021; 188:112795. [PMID: 34044297 DOI: 10.1016/j.phytochem.2021.112795] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 04/18/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
Elaeagnus angustifolia L. (Elaeagnaceae) is an important medicinal plant associated with numerous pharmacological activities. Its leaves are used as a therapeutic agent in traditional medicinal systems to treat diabetes. However, the active compounds responsible for the beneficial effects of E. angustifolia remain unclear. In this study, we determined the bioactive profile of E. angustifolia leaves using open column chromatography and semi-preparative HPLC. Further, we sought to determine its α-glucosidase and α-amylase inhibitory activities, and its DPPH and ABTS radical-scavenging activities. Four undescribed flavonol glycosides, igdoside A-D, and four known glucosides were isolated from the ethyl acetate and n-butanol extracts of E. angustifolia leaves. Thereafter, the compound structures were identified using spectroscopic methods, including NMR and mass spectrometry. Of the compounds extracted, kaempferol-3-O-(6″-trans-p-coumaroyl)-β-D-glucopyranoside (trans-tiliroside), exhibited the highest α-glucosidase inhibitory activity with an IC50 value of 2128 ± 63 μM compared to the positive control, acarbose (IC50 = 6561 ± 207 μM). trans-Tiliroside was also found to exhibit potent scavenging activity against the ABTS radical, with an IC50 value of 5 ± 0 μM, compared to the positive controls, trolox (31 ± 1 μM) and α-tocopherol (50 ± 1 μM). In addition, isorhamnetin-3-O-β-D-galactopyranoside (IC50 = 6 ± 0 μM) and astragalin (IC50 = 6 ± 0 μM) showed similar ABTS radical-scavenging activity as trans-tiliroside. Based on HPLC, the content of trans-tiliroside was 9.69% in the ethyl acetate extract, 1.04% in decoction, 0.34% in 70% methanol extract, and 0.23% in infusion. None of the extracts and compounds showed α-amylase inhibition or DPPH-scavenging activity.
Collapse
Affiliation(s)
- Hafize Yuca
- Department of Pharmacognosy, Faculty of Pharmacy, Ataturk University, 25240, Erzurum, Turkey; Medicinal and Aromatic Plant and Drug Research Center, Ataturk University, 25240, Erzurum, Turkey.
| | - Hilal Özbek
- Department of Pharmacognosy, Faculty of Pharmacy, Ataturk University, 25240, Erzurum, Turkey; Medicinal and Aromatic Plant and Drug Research Center, Ataturk University, 25240, Erzurum, Turkey
| | - Lütfiye Ömür Demirezer
- Department of Pharmacognosy, Faculty of Pharmacy, Hacettepe University, 06100, Ankara, Turkey
| | - Handan Gökben Kasil
- Department of Pharmacognosy, Faculty of Pharmacy, Ataturk University, 25240, Erzurum, Turkey
| | - Zühal Güvenalp
- Department of Pharmacognosy, Faculty of Pharmacy, Ataturk University, 25240, Erzurum, Turkey; Medicinal and Aromatic Plant and Drug Research Center, Ataturk University, 25240, Erzurum, Turkey
| |
Collapse
|
26
|
Kaur N, Kumar V, Nayak SK, Wadhwa P, Kaur P, Sahu SK. Alpha-amylase as molecular target for treatment of diabetes mellitus: A comprehensive review. Chem Biol Drug Des 2021; 98:539-560. [PMID: 34173346 DOI: 10.1111/cbdd.13909] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/31/2021] [Accepted: 06/06/2021] [Indexed: 01/13/2023]
Abstract
The alpha (α)-amylase is a calcium metalloenzyme that aids digestion by breaking down polysaccharide molecules into smaller ones such as glucose and maltose. In addition, the enzyme causes postprandial hyperglycaemia and blood glucose levels to rise. α-Amylase is a well-known therapeutic target for the treatment and maintenance of postprandial blood glucose elevations. Various enzymatic inhibitors, such as acarbose, miglitol and voglibose, have been found to be effective in targeting this enzyme, prompting researchers to express an interest in developing potent alpha-amylase inhibitor molecules. The review mainly focused on designing different derivatives of drug molecules such as benzofuran hydrazone, indole hydrazone, spiroindolone, benzotriazoles, 1,3-diaryl-3-(arylamino) propan-1-one, oxadiazole and flavonoids along with their target-receptor interactions, IC50 values and other biological activities.
Collapse
Affiliation(s)
- Navjot Kaur
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Vanktesh Kumar
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Surendra Kumar Nayak
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Pankaj Wadhwa
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Paranjit Kaur
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Sanjeev Kumar Sahu
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| |
Collapse
|
27
|
Antiamylase, Antiglucosidase, and Antiglycation Properties of Millets and Sorghum from Sri Lanka. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:5834915. [PMID: 34239583 PMCID: PMC8233094 DOI: 10.1155/2021/5834915] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 03/25/2021] [Accepted: 05/26/2021] [Indexed: 02/06/2023]
Abstract
The present study evaluated a range of biological activities of selected millet types and sorghum varieties in Sri Lanka in relation to diabetes and its complications management. Five millet types, namely, proso millet, white finger millet, kodo millet, foxtail millet, and finger millet (Oshadha and Rawana), and two sorghum varieties, namely, sweet sorghum and sorghum ICSV 112, were used in this study. Methanolic extracts of whole grains were studied for antiamylase, antiglucosidase, and early- and middle-stage antiglycation and glycation reversing activities in vitro. Tested millets and sorghum showed significant (p < 0.05) and dose-dependent antiamylase (IC50: 33.34 ± 1.11-1446.70 ± 54.10 μg/ml), early-stage antiglycation (IC50: 15.42 ± 0.50-270.03 ± 16.29 μg/ml), middle-stage antiglycation (135.08 ± 12.95-614.54 ± 6.99 μg/ml), early-stage glycation reversing (EC50: 91.82 ± 6.56-783.20 ± 61.70 μg/ml), and middle-stage glycation reversing (393.24 ± 8.68-1374.60 ± 129.30 μg/ml) activities. However, none of the studied millet and sorghum showed antiglucosidase activity. Out of the samples studied, pigmented samples, namely, sweet sorghum, Oshadha, and Rawana, exhibited significantly high (p < 0.05) antiamylase and early- and middle-stage antiglycation and glycation reversing activities compared to other millet and sorghum samples. Interestingly, sweet sorghum exhibited nearly four times potent antiamylase activity compared to the standard drug acarbose (IC50 111.98 ± 2.68 μg/ml) and sweet sorghum, kodo millet, Oshadha, and Rawana showed comparable early-stage antiglycation activities in comparison to the reference standard Rutin (IC50 21.88 ± 0.16 μg/ml). Therefore, consumption of whole grains of pigmented millet and sorghum in Sri Lanka may play an important role in the prevention and management of diabetes and its complications. Interestingly, this is the 1st study to report all the tested biological activities for millet and sorghum in Sri Lanka and the 1st study to report both early- and middle-stage glycation reversing activities of millet and sorghum worldwide.
Collapse
|
28
|
Bungthong C, Wrigley C, Sonteera T, Siriamornpun S. Amino Acid Profile and Biological Properties of Silk Cocoon as Affected by Water and Enzyme Extraction. Molecules 2021; 26:3455. [PMID: 34200149 PMCID: PMC8201060 DOI: 10.3390/molecules26113455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/03/2021] [Accepted: 06/03/2021] [Indexed: 11/16/2022] Open
Abstract
We compared the efficacy for protein extraction of water versus enzymatic extraction. The amino-acid composition, inhibitory activity against enzymes α-amylase and α-glucosidase, and anti-glycation activities of silk protein extract (SPE) were determined. We used water extraction (100 °C, six hours) and protease-enzymatic extraction. The microstructure of silk fibers was obviously different after extraction. The results showed that enzymatic extraction gave the greater values of protein content, amino acids, total phenolic content (TPC), and total flavonoid content (TFC), as well as all biological activities parameters tested, but it also provided a more bitter taste in the extract-contributing amino acids of 51% (arginine, phenylalanine, histidine, valine, tryptophan, isoleucine, and leucine) and less sweet and umami taste contributing amino acids than did water extraction, which could be more suitable to be used as concentrated nutraceuticals.
Collapse
Affiliation(s)
- Chuleeporn Bungthong
- Research Unit of Process and Product Development of Functional Foods, Department of Food Technology and Nutrition, Faculty of Technology, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand;
| | - Colin Wrigley
- Queensland Alliance for Agriculture and Food Innovation (QAAFI), University of Queensland, Brisbane, QLD 4072, Australia;
| | - Thanathat Sonteera
- Managing Director, Siam Natural Products Co., Ltd., Sutthisan Winitchai Road, Samsen Nai, Khet Phaya Thai, Bangkok 10400, Thailand;
| | - Sirithon Siriamornpun
- Research Unit of Process and Product Development of Functional Foods, Department of Food Technology and Nutrition, Faculty of Technology, Mahasarakham University, Kantarawichai, Mahasarakham 44150, Thailand;
| |
Collapse
|
29
|
Khalifa SAM, Elashal MH, Yosri N, Du M, Musharraf SG, Nahar L, Sarker SD, Guo Z, Cao W, Zou X, Abd El-Wahed AA, Xiao J, Omar HA, Hegazy MEF, El-Seedi HR. Bee Pollen: Current Status and Therapeutic Potential. Nutrients 2021; 13:nu13061876. [PMID: 34072636 PMCID: PMC8230257 DOI: 10.3390/nu13061876] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/23/2021] [Accepted: 05/28/2021] [Indexed: 02/07/2023] Open
Abstract
Bee pollen is a combination of plant pollen and honeybee secretions and nectar. The Bible and ancient Egyptian texts are documented proof of its use in public health. It is considered a gold mine of nutrition due to its active components that have significant health and medicinal properties. Bee pollen contains bioactive compounds including proteins, amino acids, lipids, carbohydrates, minerals, vitamins, and polyphenols. The vital components of bee pollen enhance different bodily functions and offer protection against many diseases. It is generally marketed as a functional food with affordable and inexpensive prices with promising future industrial potentials. This review highlights the dietary properties of bee pollen and its influence on human health, and its applications in the food industry.
Collapse
Affiliation(s)
- Shaden A. M. Khalifa
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE-106 91 Stockholm, Sweden
- Correspondence: (S.A.M.K.); (H.R.E.-S.); Tel.: +46-700-101-113 (S.A.M.K.); +46-700-434-343 (H.R.E.-S.)
| | - Mohamed H. Elashal
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Kom 32512, Egypt; (M.H.E.); (N.Y.)
| | - Nermeen Yosri
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Kom 32512, Egypt; (M.H.E.); (N.Y.)
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (Z.G.); (X.Z.)
| | - Ming Du
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116024, China;
| | - Syed G. Musharraf
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan;
| | - Lutfun Nahar
- Laboratory of Growth Regulators, Institute of Experimental Botany ASCR & Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic;
| | - Satyajit D. Sarker
- Centre for Natural Products Discovery (CNPD), School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom Street, Liverpool L3 3AF, UK;
| | - Zhiming Guo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (Z.G.); (X.Z.)
| | - Wei Cao
- College of Food Science and Technology, Northwest University, Xi’an 710069, China;
| | - Xiaobo Zou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; (Z.G.); (X.Z.)
| | - Aida A. Abd El-Wahed
- Department of Bee Research, Plant Protection Research Institute, Agricultural Research Centre, Giza 12627, Egypt;
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo—Ourense Campus, E-32004 Ourense, Spain;
| | - Hany A. Omar
- College of Pharmacy, University of Sharjah, Sharjah, P.O.Box 27272, United Arab Emirates;
| | - Mohamed-Elamir F. Hegazy
- Chemistry of Medicinal Plants Department, National Research Centre, 33 El-Bohouth St., Dokki, Giza 12622, Egypt;
| | - Hesham R. El-Seedi
- Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Kom 32512, Egypt; (M.H.E.); (N.Y.)
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
- Pharmacognosy Group, Department of Pharmaceutical Biosciences, Biomedical Centre, Uppsala University, Box 591, SE-751 24 Uppsala, Sweden
- Correspondence: (S.A.M.K.); (H.R.E.-S.); Tel.: +46-700-101-113 (S.A.M.K.); +46-700-434-343 (H.R.E.-S.)
| |
Collapse
|
30
|
Synthesis and α-Glucosidase Inhibition Activity of 2-[3-(Benzoyl/4-bromobenzoyl)-4-hydroxy-1,1-dioxido-2 H-benzo[ e][1,2]thiazin-2-yl]- N-arylacetamides: An In Silico and Biochemical Approach. Molecules 2021; 26:molecules26103043. [PMID: 34065194 PMCID: PMC8161055 DOI: 10.3390/molecules26103043] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 05/05/2021] [Accepted: 05/10/2021] [Indexed: 12/30/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic disorder and has affected a large number of people worldwide. Insufficient insulin production causes an increase in blood glucose level that results in DM. To lower the blood glucose level, various drugs are employed that block the activity of the α-glucosidase enzyme, which is considered responsible for the breakdown of polysaccharides into monosaccharides leading to an increase in the intestinal blood glucose level. We have synthesized novel 2-(3-(benzoyl/4-bromobenzoyl)-4-hydroxy-1,1-dioxido-2H-benzo[e][1,2]thiazin-2-yl)-N-arylacetamides and have screened them for their in silico and in vitro α-glucosidase inhibition activity. The derivatives 11c, 12a, 12d, 12e, and 12g emerged as potent inhibitors of the α-glucosidase enzyme. These compounds exhibited good docking scores and excellent binding interactions with the selected residues (Asp203, Asp542, Asp327, His600, Arg526) during in silico screening. Similarly, these compounds also showed good in vitro α-glucosidase inhibitions with IC50 values of 30.65, 18.25, 20.76, 35.14, and 24.24 μM, respectively, which were better than the standard drug, acarbose (IC50 = 58.8 μM). Furthermore, a good agreement was observed between in silico and in vitro modes of study.
Collapse
|
31
|
Yang Y, Zhang JL, Shen LH, Feng LJ, Zhou Q. Inhibition mechanism of diacylated anthocyanins from purple sweet potato (Ipomoea batatas L.) against α-amylase and α-glucosidase. Food Chem 2021; 359:129934. [PMID: 33940476 DOI: 10.1016/j.foodchem.2021.129934] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/25/2021] [Accepted: 04/20/2021] [Indexed: 10/21/2022]
Abstract
This study aimed to evaluate inhibitory activity of anthocyanins from purple sweet potato and blueberries against α-amylase and α-glucosidase, as well as investigate the inhibition mechanism of diacylated anthocyanins (Diacylated AF-PSP). Diacylated AF-PSP better inhibited α-amylase (IC50 = 0.078 mg mL-1) and α-glucosidase (IC50 = 1.56 mg mL-1) than other anthocyanin fractions, which was a mixed-type inhibitor. Fluorescence analysis indicated that Diacylated AF-PSP bound to the enzymes mainly through hydrogen bonds and influenced the microenvironments of proteins. Additionally, surface hydrophobicity and circular dichroism spectra results confirmed conformational changes in the enzymes induced by Diacylated AF-PSP. Molecular docking further demonstrated the interaction of Diacylated AF-PSP with enzyme active site, which might be stabilized by its acyl groups. Finally, 160 mg kg-1 Diacylated AF-PSP significantly decreased (p < 0.01) blood glucose level peak by 20.52% after starch administration in SD rats. This study provided theoretical evidences for utilization of diacylated anthocyanins in hyperglycemia-management functional foods.
Collapse
Affiliation(s)
- Yang Yang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiu-Liang Zhang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Environment Correlative Dietology, Ministry of Education, Wuhan 430070, China.
| | - Lu-Hong Shen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Lan-Jie Feng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Qing Zhou
- Department of Pharmacy, Wuhan City Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China.
| |
Collapse
|
32
|
Jokioja J, Percival J, Philo M, Yang B, Kroon PA, Linderborg KM. Phenolic Metabolites in the Urine and Plasma of Healthy Men After Acute Intake of Purple Potato Extract Rich in Methoxysubstituted Monoacylated Anthocyanins. Mol Nutr Food Res 2021; 65:e2000898. [PMID: 33687145 DOI: 10.1002/mnfr.202000898] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 01/11/2021] [Indexed: 12/17/2022]
Abstract
SCOPE Structurally stable acylated anthocyanins have potential in various food applications but the effects of acylation and methoxysubstitution on anthocyanin metabolism are poorly understood. This is the first study thoroughly investigating phenolic metabolites, their time-wise changes, and pharmacokinetics following an acute intake of methoxysubstituted monoacylated anthocyanins. METHODS AND RESULTS Healthy male volunteers (n = 17) consumed a yellow potato meal with and without purple potato extract rich in acylated anthocyanins (152 mg) and hydroxycinnamic acid conjugates (140 mg). Ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) is used for identification and quantification of metabolites from serially collected urine and plasma. While the parent anthocyanins are not detected, 28 phenolic metabolites from urine and 14 from plasma are quantified, including hydroxybenzoic and hydroxycinnamic acids and protocatechuic acid sulfates and glucuronides; three (catechol, gallic acid-4-O-glucuronide, and 2-methoxybenzoic acid) are detected for the first time after anthocyanin-rich food. Urinary hippuric acid is the most abundant with an increase of 139 µM mM-1 creatinine after the treatment. A large additional set of tentatively identified phenolic metabolites are detected. Late urinary peak time values suggest colonic degradation. CONCLUSION Acylated anthocyanins are more bioavailable than earlier reported after extensive degradation in human and/or colonial metabolism to phenolic metabolites, which may be further conjugated and demethylated.
Collapse
Affiliation(s)
- Johanna Jokioja
- Food Chemistry and Food Development, Department of Life Technologies, University of Turku, Turku, FIN-20014, Finland
| | - Jasmine Percival
- The Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, Norfolk, United Kingdom
| | - Mark Philo
- The Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, Norfolk, United Kingdom
| | - Baoru Yang
- Food Chemistry and Food Development, Department of Life Technologies, University of Turku, Turku, FIN-20014, Finland
| | - Paul A Kroon
- The Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, Norfolk, United Kingdom
| | - Kaisa M Linderborg
- Food Chemistry and Food Development, Department of Life Technologies, University of Turku, Turku, FIN-20014, Finland
| |
Collapse
|
33
|
Sadeghi M, Moradi M, Madanchi H, Johari B. In silico study of garlic ( Allium sativum L.)-derived compounds molecular interactions with α-glucosidase. In Silico Pharmacol 2021; 9:11. [PMID: 33457179 DOI: 10.1007/s40203-020-00072-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 12/18/2020] [Indexed: 10/22/2022] Open
Abstract
Diabetes mellitus is a metabolic syndrome characterized by elevated blood glucose. The α-glucosidase enzyme is responsible for the hydrolysis of carbohydrates. This in silico study aimed to evaluate the inhibitory effects of the isolated compounds from Allium sativum L. on α-glucosidase. At first, sulfur and phenolic compounds of A. sativum L. were obtained from PubChem database, and α-glucosidase enzyme structure was obtained from Protein Data Bank. Toxicity class of compounds and the Lipinski parameter were predicted by Toxtree and Protox II and the Swiss ADME tools, respectively. Finally, the molecular interaction analysis between α-glucosidase and compounds from A. sativum L. was performed by AutoDock 4.2.6. Molecular interactions were investigated using Discovery Studio Visulizer and Ligplot 2.1 program. All of the selected sulfur and phenolic compounds from A. sativum L. followed the Lipinski's rules, had an acceptable binding energy, and lacked toxicity; therefore, they were appropriate candidates for α-glucosidase inhibition. Among these compounds, methionol and caffeic acid showed the lowest binding energy, and the highest inhibitory effect on α-glucosidase enzyme with - 3.9 and - 4.8 kcal/mol, respectively. These compounds also indicated the lower binding energy than the standard inhibitor (miglitol). Among the sulfur and phenolic compounds in A. sativum L., methionol and caffeic acid were predicted to be the powerful inhibitors, due to having more hydrogen binds and hydrophobic interactions with the active site of α-glucosidase.
Collapse
Affiliation(s)
- Morteza Sadeghi
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Sciences and Technology, University of Isfahan, Isfahan, Iran
| | - Mohammad Moradi
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.,Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
| | - Hamid Madanchi
- Department of Biotechnology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran.,Drug Design and Bioinformatics Unit, Department of Medical Biotechnology, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Behrooz Johari
- Department of Medical Biotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran.,Student Research Committee, Zanjan University of Medical Sciences, Zanjan, Iran
| |
Collapse
|
34
|
Brus M, Frangež R, Gorenjak M, Kotnik P, Knez Ž, Škorjanc D. Effect of Hydrolyzable Tannins on Glucose-Transporter Expression and Their Bioavailability in Pig Small-Intestinal 3D Cell Model. Molecules 2021; 26:molecules26020345. [PMID: 33440878 PMCID: PMC7827651 DOI: 10.3390/molecules26020345] [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: 11/02/2020] [Revised: 12/27/2020] [Accepted: 01/06/2021] [Indexed: 11/23/2022] Open
Abstract
Intestinal transepithelial transport of glucose is mediated by glucose transporters, and affects postprandial blood-glucose levels. This study investigates the effect of wood extracts rich in hydrolyzable tannins (HTs) that originated from sweet chestnut (Castanea sativa Mill.) and oak (Quercus petraea) on the expression of glucose transporter genes and the uptake of glucose and HT constituents in a 3D porcine-small-intestine epithelial-cell model. The viability of epithelial cells CLAB and PSI exposed to different HTs was determined using alamarBlue®. qPCR was used to analyze the gene expression of SGLT1, GLUT2, GLUT4, and POLR2A. Glucose uptake was confirmed by assay, and LC–MS/ MS was used for the analysis of HT bioavailability. HTs at 37 µg/mL were found to adversely affect cell viability and downregulate POLR2A expression. HT from wood extract Tanex at concentrations of 4 µg/mL upregulated the expression of GLUT2, as well as glucose uptake at 1 µg/mL. The time-dependent passage of gallic acid through enterocytes was influenced by all wood extracts compared to gallic acid itself as a control. These results suggest that HTs could modulate glucose uptake and gallic acid passage in the 3D cell model.
Collapse
Affiliation(s)
- Maksimiljan Brus
- Faculty of Agriculture and Life Sciences, University of Maribor, Pivola 10, 2311 Hoče, Slovenia;
| | - Robert Frangež
- Veterinary Faculty, Institute of Preclinical Sciences, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia;
| | - Mario Gorenjak
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Taborska 8, 2000 Maribor, Slovenia;
| | - Petra Kotnik
- Department of Chemistry, Faculty of Medicine, University of Maribor, Taborska 8, 2000 Maribor, Slovenia; (P.K.); (Ž.K.)
- Laboratory for Separation Processes and Product Design, Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia
| | - Željko Knez
- Department of Chemistry, Faculty of Medicine, University of Maribor, Taborska 8, 2000 Maribor, Slovenia; (P.K.); (Ž.K.)
- Laboratory for Separation Processes and Product Design, Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia
| | - Dejan Škorjanc
- Faculty of Agriculture and Life Sciences, University of Maribor, Pivola 10, 2311 Hoče, Slovenia;
- Correspondence: ; Tel.: +386-2-320-90-25
| |
Collapse
|
35
|
Herawati ERN, Santosa U, Sentana S, Ariani D. Protective Effects of Anthocyanin Extract from Purple Sweet Potato ( Ipomoea batatas L.) on Blood MDA Levels, Liver and Renal Activity, and Blood Pressure of Hyperglycemic Rats. Prev Nutr Food Sci 2020; 25:375-379. [PMID: 33505931 PMCID: PMC7813593 DOI: 10.3746/pnf.2020.25.4.375] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/07/2020] [Indexed: 11/24/2022] Open
Abstract
There has been a dynamic progression in the study of purple sweet potatoes, particularly in regard to their antioxidant compounds, such as anthocyanins. Antioxidants can reduce oxidative stress due to hyperglycemia, therefore research into the protective effects of hyperglycemia is essential. This study was conducted to investigate the protective effects of anthocyanin extracts from purple sweet potatoes on blood malondialdehyde (MDA) levels, liver and renal activity, and blood pressure in hyperglycemic rats. Anthocyanin from purple sweet potato (APSP) was extracted with ethanol-citric acid 3% solvent. Twenty-four rats were split into four experimental groups: (i) healthy rats; (ii) hyperglycemic rats without anthocyanin treatment; (iii) hyperglycemic rats treated with APSP extract at a dose of 50 mg/kg; and (iv) hyperglycemic rats treated with APSP extract at a dose of 100 mg/kg. Rats received treatment for 35 days. The results showed that consumption of APSP significantly reduced levels of MDA in the blood, and liver and renal systems. APSP could reduce the urea and creatinine levels, which are indicative of improved renal function. In addition, APSP could decrease serum glutamate oxalacetate transaminase and serum glutamate pyruvate transaminase levels, indicative of protective activity of the extract on liver, and decrease systolic blood pressure. Accordingly, it was concluded that APSP could be developed as a functional food for treatment of diabetes.
Collapse
Affiliation(s)
| | - Umar Santosa
- Faculty of Agricultural Technology, Gadjah Mada University, Yogyakarta 55281, Indonesia
| | - Suharwadji Sentana
- Research Division for Natural Product Technology, Indonesian Institute of Sciences, Yogyakarta 55861, Indonesia
| | - Dini Ariani
- Research Division for Natural Product Technology, Indonesian Institute of Sciences, Yogyakarta 55861, Indonesia
| |
Collapse
|
36
|
Park SY. Inhibitory Effect of Jeju Tea Extracts and Vanadate on Postprandial Hyperglycemia and Hypertension, and In Vitro Study. KOREAN JOURNAL OF CLINICAL LABORATORY SCIENCE 2020. [DOI: 10.15324/kjcls.2020.52.4.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Shin Young Park
- Department of Clinical Laboratory Science, Cheju Halla University, Jeju, Korea
| |
Collapse
|
37
|
Wu P, He H, Ma H, Tu B, Li J, Guo S, Chen S, Cao N, Zheng W, Tang X, Li D, Xu X, Zheng X, Sheng Z, David Hong W, Zhang K. Oleanolic acid indole derivatives as novel α-glucosidase inhibitors: Synthesis, biological evaluation, and mechanistic analysis. Bioorg Chem 2020; 107:104580. [PMID: 33418317 DOI: 10.1016/j.bioorg.2020.104580] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 12/20/2020] [Indexed: 12/18/2022]
Abstract
Research efforts have been directed to the development of oleanolic acid (OA) based α-glucosidase inhibitors and various OA derivatives showed improved anti-α-glucosidase activity. However, the inhibitory effects of indole infused OA derivatives on α-glucosidase is unknown. Herein, we synthesized a series of indole-OA (2a-2o) and -OA methyl ester (3a-3 l) derivatives with various electron withdrawing groups inducted to indole benzene ring and evaluated their anti-α-glucosidase activity. Indole OA derivatives (2a-2o) exhibited superior α-glucosidase inhibitory effects as compared to OA methyl ester derivatives (3a-3l) and OA (with IC50 values of 4.02 μM-5.30 μM v.s. over 10 μM and 5.52 µM, respectively). In addition, mechanistic studies using biochemical (kinetic assay), biophysical (circular dichroism), and computational (docking) methods revealed that OA-indole derivatives (2a and 2f) are mixed type of α-glucosidase inhibitors and their inhibitory effects were attributed to their capacity of forming the ligand-enzyme complex with α-glucosidase enzyme. Findings from this study support that OA indole derivatives are promising α-glucosidase inhibitors as a potential management of diabetes mellitus.
Collapse
Affiliation(s)
- Panpan Wu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China; Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Hao He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China; Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Hang Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; Bioactive Botanical Research Laboratory, Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Borong Tu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China
| | - Jiahao Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China
| | - Shengzhu Guo
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China
| | - Silin Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China
| | - Nana Cao
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China
| | - Wende Zheng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China
| | - Xiaowen Tang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China
| | - Dongli Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China
| | - Xuetao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China
| | - Xi Zheng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China
| | - Zhaojun Sheng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China.
| | - Weiqian David Hong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China; Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom.
| | - Kun Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, PR China; International Healthcare Innovation Institute (Jiangmen), Jiangmen, 529040, PR China.
| |
Collapse
|
38
|
Theaflavins inhibit glucose transport across Caco-2 cells through the downregulation of the Ca2+/AMP-activated protein kinase-mediated glucose transporter SGLT1. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104273] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
|
39
|
Suresh Y, Rajasekar G, Lavanya T, Lakshminarsimhulu B, Reddy KS, Reddy SR. Antioxidant and antidiabetic properties of isolated fractions from methanolic extract derived from the whole plant of Cleome viscosa L. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2020. [DOI: 10.1186/s43094-020-00122-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Abstract
Background
Cleome viscosa is considered as an important medicinal plant extensively used in India, China, Bangladesh, and a few countries in Africa. In the present study, in vitro anti-radical and antidiabetic potential of isolated fractions of methanolic extract of C. viscosa whole plant (MeCV) has been investigated. The identification of polyphenols and their related functional groups in the bioactive fraction was categorized by using HPLC and FT-IR.
Results
The total phenolic and flavonoid contents of F-D were higher than those of F-A, F-B, and F-C. The F-D exhibited superior antioxidant capacity when compared with the remaining three fractions. However, the F-D showed the highest glucose diffusion activity over the 30 min–27 h incubation period and also inhibited both α-glucosidase and α-amylase enzyme activity. HPLC analysis revealed the presence of the two known compounds (protocatechuic acid hexoside, rutin) and six unknown compounds in the F-D. FTIR spectrum confirmed the presence of phenol group.
Conclusion
The isolated F-D obtained from MeCV displayed superior antioxidant and antidiabetic activity which indicate the presence of polyphenols in the fraction. The data findings of the present study support the traditional uses of the whole plant of C. viscosa as a promising natural source of biological medicines for oxidative stress and diabetes.
Collapse
|
40
|
Li Y, Zhang X, Wang R, Han L, Huang W, Shi H, Wang B, Li Z, Zou S. Altering the inhibitory kinetics and molecular conformation of maltase by Tangzhiqing (TZQ), a natural α-glucosidase inhibitor. BMC Complement Med Ther 2020; 20:350. [PMID: 33208112 PMCID: PMC7672964 DOI: 10.1186/s12906-020-03156-3] [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: 02/14/2020] [Accepted: 11/10/2020] [Indexed: 11/10/2022] Open
Abstract
Background Tangzhiqing (TZQ), as a potential α-glycosidase inhibitor, possesses postprandial hypoglycaemic effects on maltose in humans. The aim of this study was to investigate the mechanisms by which TZQ attenuates postprandial glucose by interrupting the activity of maltase, including inhibitory kinetics and circular dichroism studies. Methods In this study, we determined the inhibitory effect of TZQ on maltase by kinetic analysis to determine the IC50 value and enzyme velocity studies and line weaver-burk plot generation to determine inhibition type. Acarbose was chosen as a standard control drug. After the interaction with TZQ and maltase, secondary structure analysis was conducted with a circular dichroism method. Results TZQ showed notable inhibition activity on maltase in a reversible and competitive manner with an IC50 value of 1.67 ± 0.09 μg/ml, which was weaker than that of acarbose (IC50 = 0.29 ± 0.01 μg/ml). The circular dichroism spectrum demonstrated that the binding of TZQ to maltase changed the conformation of maltase and varied with the concentration of TZQ in terms of the disappearance of β-sheets and an increase in the α-helix content of the enzyme, similar to acarbose. Conclusions This work provides useful information for the inhibitory effect of TZQ on maltase. TZQ has the potential to be an α-glycosidase inhibitor for the prevention and treatment of prediabetes or mild diabetes mellitus.
Collapse
Affiliation(s)
- Yanfen Li
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, No.69 Zengchan Road, Hebei District, Tianjin, 300250, China
| | - Xiaomao Zhang
- School of Chemical Engineering and Technology, Tianjin University, No. 135 Yaguan Road, Jinnan District, Tianjin, 300350, China
| | - Ruihua Wang
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, No.69 Zengchan Road, Hebei District, Tianjin, 300250, China
| | - Lu Han
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyanghu Road, Tuanbo New Town, Jinghai District, Tianjin, 301617, China
| | - Wei Huang
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyanghu Road, Tuanbo New Town, Jinghai District, Tianjin, 301617, China
| | - Hong Shi
- Tianjin University of Traditional Chinese Medicine, No. 10 Poyanghu Road, Tuanbo New Town, Jinghai District, Tianjin, 301617, China
| | - Baohe Wang
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, No.69 Zengchan Road, Hebei District, Tianjin, 300250, China
| | - Ziqiang Li
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, No.69 Zengchan Road, Hebei District, Tianjin, 300250, China.
| | - Shaolan Zou
- School of Chemical Engineering and Technology, Tianjin University, No. 135 Yaguan Road, Jinnan District, Tianjin, 300350, China.
| |
Collapse
|
41
|
Cytotoxic, Antioxidant, and Metabolic Enzyme Inhibitory Activities of Euphorbia cyparissias Extracts. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:9835167. [PMID: 33178390 PMCID: PMC7647782 DOI: 10.1155/2020/9835167] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 10/04/2020] [Accepted: 10/16/2020] [Indexed: 01/04/2023]
Abstract
Plants of the Euphorbia genus present a wide range of therapeutic applications. This study is aimed at investigating new antidigestive enzyme agents from Euphorbia cyparissias through inhibition of lipid and carbohydrate absorption, to evaluate their potential applications for the treatment of metabolic syndrome. Lipase, phospholipase, protease, α-amylase, β-glucosidase, and xanthine oxidase activities under treatment with aqueous and ethanolic extracts of Euphorbia cyparissias were observed to evaluate the inhibitory effect of these extracts, as well as their antioxidant and cytotoxic effects. Results showed that ethanolic and aqueous extracts exhibited important inhibitory activity in a concentration-related manner on digestive enzymes, which is more effective than the commercial drugs used as controls. Results also showed that, out of the two extracts tested, the ethanolic extract presented the most promising results in inhibiting the activities of all digestive enzymes used. Moreover, the two extracts displayed a higher reducing power than that of the positive control used. The obtained results, together with previous reports in the literature, strongly suggest that Euphorbia cyparissias extracts may be natural inhibitors of the digestive enzymes and thus a potential new drug for metabolic syndrome treatment.
Collapse
|
42
|
Liu DM, Dong C, Ma RT. A colorimetric method for screening α-glucosidase inhibitors from flavonoids using 3,3',5,5'-tetramethylbenzidine as a chromogenic probe. Colloids Surf B Biointerfaces 2020; 197:111400. [PMID: 33113490 DOI: 10.1016/j.colsurfb.2020.111400] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/17/2020] [Accepted: 10/04/2020] [Indexed: 01/14/2023]
Abstract
A facile and novel colorimetric method for screening of α-glucosidase inhibitors (AGIs) from flavonoids using 3,3',5,5'-tetramethylbenzidine (TMB) as a chromogenic probe is proposed. This method is based on the colorimetric detection of ascorbic acid (AA) through the TMB oxidation reaction catalyzed by horseradish peroxidase (HRP) in the presence of hydrogen peroxide (H2O2). In the TMB/H2O2/HRP system, HRP catalyzes the oxidation of H2O2 to ‧OH radical which oxidizes TMB to blue-colored oxidized TMB (oxTMB). In the presence of AA, the production of ‧OH radical is suppressed and causes the decrease of oxTMB, resulting in the fading of the blue color and the decrease of absorbance at 652 nm. Based on this, the existence of AA can be facilely identified. In the 2-O-α-d-glucopyranosyl-l-ascorbic acid (AA-2 G)/α-glucosidase (α-Glu) system, the produced AA inhibits the oxidation of TMB to blue-colored oxTMB. In the presence of AGIs, the production of AA is inhibited, which inhibits the reduction of oxTMB, resulting in a blue color recovery and an increase of the absorbance at 652 nm. Based on this, the colorimetric method is developed for screening of AGIs from 7 flavonoids.
Collapse
Affiliation(s)
- Dong-Mei Liu
- Key Lab for Special Functional Materials, Ministry of Education, National & Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, PR China
| | - Chen Dong
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng, 475004, PR China.
| | - Run-Tian Ma
- College of Science, Gansu Agricultural University, Lanzhou, 730000, Gansu Province, PR China.
| |
Collapse
|
43
|
Capetti F, Cagliero C, Marengo A, Bicchi C, Rubiolo P, Sgorbini B. Bio-Guided Fractionation Driven by In Vitro α-Amylase Inhibition Assays of Essential Oils Bearing Specialized Metabolites with Potential Hypoglycemic Activity. PLANTS (BASEL, SWITZERLAND) 2020; 9:plants9091242. [PMID: 32967115 PMCID: PMC7569863 DOI: 10.3390/plants9091242] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/17/2020] [Accepted: 09/19/2020] [Indexed: 05/27/2023]
Abstract
Type 2 diabetes mellitus (T2DM) is a metabolic disorder characterized by unpaired blood glycaemia maintenance. T2DM can be treated by inhibiting carbohydrate hydrolyzing enzymes (α-amylases and α-glucosidases) to decrease postprandial hyperglycemia. Acarbose and voglibose are inhibitors used in clinical practice. However, these drugs are associated with unpleasant gastrointestinal side effects. This study explores new α-amylase inhibitors deriving from plant volatile specialized metabolites. Sixty-two essential oils (EOs) from different plant species and botanical families were subjected to α-amylase in vitro enzymatic assay and chemically characterized using gas chromatography coupled to mass spectrometry. Several EOs were found to be potential α-amylase inhibitors, and Eucalyptus radiata, Laurus nobilis, and Myristicafragrans EOs displayed inhibitory capacities comparable to that of the positive control (i.e., acarbose). A bio-guided fractionation approach was adopted to isolate and identify the active fractions/compounds of Eucalyptus radiata and Myristica fragrans EOs. The bio-guided fractionation revealed that EOs α-amylase inhibitory activity is often the result of antagonist, additive, or synergistic interactions among their bioactive constituents and led to the identification of 1,8-cineole, 4-terpineol, α-terpineol, α-pinene, and β-pinene as bioactive compounds, also confirmed when they were tested singularly. These results demonstrate that EO oils are a promising source of potential α-amylase inhibitors.
Collapse
|
44
|
Inhibition of Digestive Enzyme and Stimulation of Human Liver Cells (HepG2) Glucose Uptake by Date Seeds Extract. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:4290702. [PMID: 32802126 PMCID: PMC7411488 DOI: 10.1155/2020/4290702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/06/2020] [Indexed: 12/27/2022]
Abstract
Type 2 diabetes mellitus is increasing worldwide, and the United Arab Emirates is presenting one of the world's highest prevalence rates. Dietary polyphenols exert an antidiabetic effect by modulating carbohydrates digestion and cellular glucose uptake. Due to their particularly high content in polyphenols, date seeds represent a potential antidiabetic agent. This study aims to determine if date seed polyphenols inhibit the activity of the enzymes (α-amylase and α-glucosidase), responsible for the digestion of carbohydrates and modulating the glucose uptake by human liver cells. In vitro activity of the intestinal α-glucosidase, pancreatic α-amylase, the glucose uptake by HepG2 cells, and the expression of GLUT4 and AMPK analyzed by western blotting (with and without date seeds extract). Our result showed that the maximum enzymes inhibition was obtained with 400 μg/mL and 900 μg/mL DSE for α-amylase and α-glucosidase, respectively. The HepG2 cell viability significantly decreased up to 80% at 4000 μg/mL DSE. The expression of GLUT4 was higher at 100 μg/mL DSE (with insulin and without insulin). However, the expressions of P-AMPK and AMPK were increased by DSE, mainly in a non-insulin-dependent manner. Therefore, DSE, by inhibiting carbohydrate digestion and stimulating glucose uptake by HepG2, can potentially demonstrate the therapeutic potential for diabetes management.
Collapse
|
45
|
Kaeswurm JAH, Könighofer L, Hogg M, Scharinger A, Buchweitz M. Impact of B-Ring Substitution and Acylation with Hydroxy Cinnamic Acids on the Inhibition of Porcine α-Amylase by Anthocyanin-3-Glycosides. Foods 2020; 9:foods9030367. [PMID: 32245282 PMCID: PMC7142633 DOI: 10.3390/foods9030367] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/16/2020] [Accepted: 03/16/2020] [Indexed: 11/16/2022] Open
Abstract
An inhibitory effect on α-amylase and α-glucosidase is postulated for polyphenols. Thus, ingestion of those secondary plant metabolites might reduce postprandial blood glucose level (hyperglycemia), which is a major risk factor for diabetes mellitus type II. In addition to a previous study investigating structure-effect relationships of different phenolic structures, the effect of anthocyanins is studied in detail here, by applying an α-amylase activity assay, on the basis of the conversion of 2-chloro-4-nitrophenyl-4-O-ß-galactopyranosyl maltoside (GalG2CNP) and detection of CNP release by UV/Vis spectroscopy and isothermal titration calorimetry (ITC). All anthocyanin-3-glucosides showed a mixed inhibition with a strong competitive proportion, Kic < 134 µM and Kiu < 270 µM; however, the impact of the B-ring substitution was not statistically significant. UV/Vis detection failed to examine the inhibitory effect of acylated cyanidins isolated from black carrot (Daucus carota ssp. Sativus var. Autrorubens Alef.). However, ITC measurements reveal a much stronger inhibitory effect compared to the cyanidin-3-glucoside. Our results support the hypothesis that anthocyanins are efficient α-amylase inhibitors and an additional acylation with a cinnamic acid boosts the observed effect. Therefore, an increased consumption of vegetables containing acylated anthocyanin derivatives might help to prevent hyperglycemia.
Collapse
Affiliation(s)
- Julia A. H. Kaeswurm
- Institute of Biochemistry and Technical Biochemistry, Department of Food Chemistry, University of Stuttgart, 70569 Stuttgart, Germany; (J.A.H.K.); (L.K.); (M.H.)
| | - Lisa Könighofer
- Institute of Biochemistry and Technical Biochemistry, Department of Food Chemistry, University of Stuttgart, 70569 Stuttgart, Germany; (J.A.H.K.); (L.K.); (M.H.)
| | - Melanie Hogg
- Institute of Biochemistry and Technical Biochemistry, Department of Food Chemistry, University of Stuttgart, 70569 Stuttgart, Germany; (J.A.H.K.); (L.K.); (M.H.)
| | - Andreas Scharinger
- Chemisches und Veterinäruntersuchungsamt Karlsruhe, Weißenburger Str. 3, 76187 Karlsruhe, Germany;
| | - Maria Buchweitz
- Institute of Biochemistry and Technical Biochemistry, Department of Food Chemistry, University of Stuttgart, 70569 Stuttgart, Germany; (J.A.H.K.); (L.K.); (M.H.)
- Correspondence: ; Tel.: +49-71-16-856-9231
| |
Collapse
|
46
|
He XF, Zhang XK, Geng CA, Hu J, Zhang XM, Guo YQ, Chen JJ. Tsaokopyranols A–M, 2,6-epoxydiarylheptanoids from Amomum tsao-ko and their α-glucosidase inhibitory activity. Bioorg Chem 2020; 96:103638. [DOI: 10.1016/j.bioorg.2020.103638] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/13/2020] [Accepted: 01/28/2020] [Indexed: 12/30/2022]
|
47
|
Jiang T, Shuai X, Li J, Yang N, Deng L, Li S, He Y, Guo H, Li Y, He J. Protein-Bound Anthocyanin Compounds of Purple Sweet Potato Ameliorate Hyperglycemia by Regulating Hepatic Glucose Metabolism in High-Fat Diet/Streptozotocin-Induced Diabetic Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:1596-1608. [PMID: 31927925 DOI: 10.1021/acs.jafc.9b06916] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Purple sweet potato is known as a rich source of protein and anthocyanins. Anthocyanins can form complexes with protein present in food products through non-covalent forces or covalent bonds during processing, transportation, and storage as their protein affinity. We evaluated the hypoglycemic effects of protein-bound anthocyanin compounds of purple sweet potato (p-BAC-PSP) and free anthocyanin compounds of purple sweet potato (FAC-PSP) in high-fat diet/streptozotocin-induced diabetic mice. The results showed that administration of both p-BAC-PSP and FAC-PSP improved diabetic condition, as evidenced by the improvement of glucose tolerance and lipid metabolism, and the decrease of oxidative stress and liver damage. For the mechanism study, we have found that p-BAC-PSP and FAC-PSP induced the expression of AMP-activated protein kinase in liver. With p-BAC-PSP or FAC-PSP treatment, glucose transporter type 2, the protein levels of glucokinase, and insulin receptor α were found to be improved significantly (p < 0.05). Glycolysis key genes, phosphofructokinase and pyruvate kinase, were upregulated in two treatment groups, while gluconeogenic genes, glucose-6-phosphatase and phosphoenolpyruvate carboxykinase, were downregulated. Our findings suggested that p-BAC-PSP has great potential as a dietary supplement with hypoglycemic activity for general, pre-diabetic, and diabetic population.
Collapse
Affiliation(s)
- Tian Jiang
- School of Food Science and Engineering , Wuhan Polytechnic University , 430023 Wuhan , China
| | - Xiaoyan Shuai
- School of Food Science and Engineering , Wuhan Polytechnic University , 430023 Wuhan , China
| | - Jia Li
- School of Food Science and Engineering , Wuhan Polytechnic University , 430023 Wuhan , China
| | - Ning Yang
- School of Food Science and Engineering , Wuhan Polytechnic University , 430023 Wuhan , China
| | - Li Deng
- School of Food Science and Engineering , Wuhan Polytechnic University , 430023 Wuhan , China
| | - Shuyi Li
- School of Food Science and Engineering , Wuhan Polytechnic University , 430023 Wuhan , China
| | - Yi He
- School of Food Science and Engineering , Wuhan Polytechnic University , 430023 Wuhan , China
| | - Heng Guo
- Yun-Hong Group Co. Ltd. , 430206 Wuhan , China
| | - Yubao Li
- Department of Pharmacy , Wuhan No.1 Hospital , 430030 Wuhan , China
| | - Jingren He
- School of Food Science and Engineering , Wuhan Polytechnic University , 430023 Wuhan , China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products , Wuhan 430023 , China
| |
Collapse
|
48
|
Kiwifruit with high anthocyanin content modulates NF-κB activation and reduces CCL11 secretion in human alveolar epithelial cells. J Funct Foods 2020. [DOI: 10.1016/j.jff.2019.103734] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
49
|
Metabolic Enzyme Inhibitory and Larvicidal Activity of Biosynthesized and Heat Stabilized Silver Nanoparticles Using Annona muricata Leaf Extract. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-019-00709-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
50
|
Assefa ST, Yang EY, Chae SY, Song M, Lee J, Cho MC, Jang S. Alpha Glucosidase Inhibitory Activities of Plants with Focus on Common Vegetables. PLANTS 2019; 9:plants9010002. [PMID: 31861279 PMCID: PMC7020213 DOI: 10.3390/plants9010002] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/12/2019] [Accepted: 12/16/2019] [Indexed: 01/07/2023]
Abstract
Type-2 diabetes mellitus is one of the most prevalent metabolic diseases in the world, and is characterized by hyperglycemia (i.e., high levels of glucose in the blood). Alpha-glucosidases are enzymes in the digestive tract that hydrolyze carbohydrates into glucose. One strategy that has been developed to treat type-2 diabetes is inhibition of the activity of alpha-glucosidases using synthetic drugs. However, these inhibitors are usually associated with gastrointestinal side effects. Therefore, the development of inhibitors from natural products offers an alternative option for the control of hyperglycemia. In recent years, various studies have been conducted to identify alpha-glucosidases inhibitors from natural sources such as plants, and many candidates have transpired to be secondary metabolites including alkaloids, flavonoids, phenols, and terpenoids. In this review, we focus on the alpha-glucosidases inhibitors found in common vegetable crops and the major classes of phytochemicals responsible for the inhibitory activity, and also as potential/natural drug candidates for the treatment of type-2 diabetes mellitus. In addition, possible breeding strategies for production of improved vegetable crops with higher content of the inhibitors are also described.
Collapse
Affiliation(s)
- Samuel Tilahun Assefa
- National Institute of Horticultural and Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju-gun, Jellabuk-do 55365, Korea; (S.T.A.); (E.-Y.Y.); (S.-Y.C.); (M.-C.C.)
- Department of Horticulture, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju-si, Jeollabuk-do 54896, Korea;
| | - Eun-Young Yang
- National Institute of Horticultural and Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju-gun, Jellabuk-do 55365, Korea; (S.T.A.); (E.-Y.Y.); (S.-Y.C.); (M.-C.C.)
| | - Soo-Young Chae
- National Institute of Horticultural and Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju-gun, Jellabuk-do 55365, Korea; (S.T.A.); (E.-Y.Y.); (S.-Y.C.); (M.-C.C.)
| | - Mihye Song
- World Vegetable Center Korea Office (WKO), Wanju-gun, Jellabuk-do 55365, Korea;
| | - Jundae Lee
- Department of Horticulture, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju-si, Jeollabuk-do 54896, Korea;
| | - Myeong-Cheoul Cho
- National Institute of Horticultural and Herbal Science (NIHHS), Rural Development Administration (RDA), Wanju-gun, Jellabuk-do 55365, Korea; (S.T.A.); (E.-Y.Y.); (S.-Y.C.); (M.-C.C.)
| | - Seonghoe Jang
- World Vegetable Center Korea Office (WKO), Wanju-gun, Jellabuk-do 55365, Korea;
- Correspondence: ; Tel.: +82-63-238-6677
| |
Collapse
|