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Bermúdez-Oria A, Rubio-Senent F, Rodríguez-Gutiérrez G, Fernández-Bolaños J. Antioxidant activity and inhibitory effects on angiotensin I-converting enzyme and α-glucosidase of trans-p-coumaroyl-secologanoside (comselogoside) and its inclusion complex with β-cyclodextrin. Bioaccessibility during simulated in vitro gastrointestinal digestion. Food Chem 2024; 460:140724. [PMID: 39121769 DOI: 10.1016/j.foodchem.2024.140724] [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: 05/29/2024] [Revised: 07/16/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024]
Abstract
This study explored the impact of complexing comselogoside (COM) with β-cyclodextrin (β-CD) on antioxidant capacity and investigated its in vitro inhibitory effects against α-glucosidase and angiotensin I-converting enzyme (ACE). The COM: β-CD complex in three molar ratios (1:2, 1:1, and 2:1) showed significantly higher antioxidant activity compared to free COM, assessed by DPPH and ferric reducing power assays. COM exhibited weak to moderate α-glucosidase inhibition (IC50 1221 μM) and notable ACE inhibition (IC50 119.4 μM). Encapsulation improved ACE inhibition notably for the 1:2 and 2:1 M ratios. The cleavage of secoiridoid moiety of COM by β-glucosidase further enhanced ACE inhibition from IC50 of 63.91 to 41.75 μg/mL in the hydrolysed mixture. In vitro gastrointestinal digestion revealed 34-40% bioaccessibility of COM and its β-CD complex. This study demonstrates the potential of encapsulated COM as a functional food or supplement for preventing and treating diabetes, hypertension, and oxidative stress-related diseases.
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Affiliation(s)
- Alejandra Bermúdez-Oria
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Pablo de Olavide University Campus, Building 46, 41013 Seville, Spain
| | - Fátima Rubio-Senent
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Pablo de Olavide University Campus, Building 46, 41013 Seville, Spain
| | - Guillermo Rodríguez-Gutiérrez
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Pablo de Olavide University Campus, Building 46, 41013 Seville, Spain
| | - Juan Fernández-Bolaños
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Pablo de Olavide University Campus, Building 46, 41013 Seville, Spain.
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2
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Ashour A, Amen Y, Allam AE, Mwakalukwa R, Niwa Y, Shimizu K. The peels of sacred Lotus (Nelumbo nucifera) rhizomes suppress allergic reactions by inhibiting the A23187-induced degranulation in rat basophilic leukemia (RBL2H3) cells. Fitoterapia 2024; 178:106153. [PMID: 39089597 DOI: 10.1016/j.fitote.2024.106153] [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: 06/04/2024] [Revised: 07/26/2024] [Accepted: 07/28/2024] [Indexed: 08/04/2024]
Abstract
We isolated ten compounds from methanolic extract of the peels of sacred lotus (Nelumbo nucifera) rhizomes which were identified as β-sitosterol linoleate 1, β-sitosterol 2, lupeol 3, stigmasterol 3-O-β-D-glucoside 4, oleanolic acid 5, betulinic acid 6, pinoresinol 7, 4-hydroxybenzoic acid 8, catechin 9 and gallocatechin 10. All of the isolated compounds from the peels of sacred lotus rhizomes are reported for the first time, and were investigated for their anti-allergic activity. We found that three of them, stigmasterol 3-O-β-D-glucoside 4, oleanolic acid 5 and pinoresinol 7, were capable of inhibiting A23187-induced degranulation in RBL-2H3 cells with IC50 values 0.18 ± 0.01 mM, 0.28 ± 0.06 mM, and 0.27 ± 0.01 mM, respectively. With an exception to 4, compounds 5 and 7 achieved the anti-allergic effect without affecting the cells viability even at higher concentrations with their selectivity indices (SI) being >5. By reducing A23187-induced degranulation, it is suggestive of a mechanism attenuation of Ca2+ elevation. Our findings suggest that, the peels of sacred lotus rhizomes would be beneficial for providing an inexpensive source for the production of bioactive compounds with anti-allergic effect.
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Affiliation(s)
- Ahmed Ashour
- Department of Pharmacognosy, Faculty of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Yhiya Amen
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt; Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 812-8581, Japan
| | - Ahmed E Allam
- Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 812-8581, Japan; Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Rogers Mwakalukwa
- Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 812-8581, Japan; Department of Pharmacognosy, School of Pharmacy, Muhimbili University of Health and Allied Sciences, Tanzania
| | - Yasuharu Niwa
- Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 812-8581, Japan
| | - Kuniyoshi Shimizu
- Division of Systematic Forest and Forest Products Sciences, Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 812-8581, Japan.
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Wijaya GYA, Cuffaro D, Bertini S, Digiacomo M, Macchia M. 1-Acetoxypinoresinol, a Lignan from Olives: Insight into Its Characterization, Identification, and Nutraceutical Properties. Nutrients 2024; 16:1474. [PMID: 38794712 PMCID: PMC11123675 DOI: 10.3390/nu16101474] [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: 04/09/2024] [Revised: 05/03/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Extra virgin olive oil (EVOO) is a symbol of the Mediterranean diet, constituting its primary source of fat. The beneficial effect of EVOO is strictly related to the presence of fatty acids and polyphenols, bioactive compounds endowed with nutraceutical properties. Among EVOO polyphenols, lignans possess a steroid-like chemical structure and are part of the phytoestrogen family, which is renowned for its health properties. The natural lignans (+)-pinoresinol and 1-acetoxypinoresinol (1-AP) are commonly present in olives and in EVOO. Although (+)-pinoresinol is found in different edible plants, such as flaxseed, beans, whole-grain cereals, sesame seeds, and certain vegetables and fruit, 1-AP was exclusively identified in olives in 2000. So far, the scientific literature has extensively covered different aspects of (+)-pinoresinol, including its isolation and nutraceutical properties. In contrast, less is known about the olive lignan 1-AP. Therefore, this review aimed to comprehensively evaluate the more important aspects of 1-AP, collecting all the literature from 2016 to the present, exploring its distribution in different cultivars, analytical isolation and purification, and nutraceutical properties.
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Affiliation(s)
- Ganesha Yanuar Arief Wijaya
- Doctoral School in Life Sciences, University of Siena, 53100 Siena, Italy;
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
| | - Doretta Cuffaro
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Simone Bertini
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
| | - Maria Digiacomo
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
| | - Marco Macchia
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy; (D.C.); (S.B.); (M.M.)
- Interdepartmental Research Center “Nutraceuticals and Food for Health”, University of Pisa, 56100 Pisa, Italy
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4
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Katturajan R, Shivaji P, Nithiyanandam S, Parthasarathy M, Magesh S, Vashishth R, Radhakrishnan V, Prince SE. Antioxidant and Antidiabetic Potential of Ormocarpum cochinchinense (Lour.) Merr. Leaf: An Integrated In vitro and In silico Approach. Chem Biodivers 2024; 21:e202300960. [PMID: 38217335 DOI: 10.1002/cbdv.202300960] [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: 07/01/2023] [Revised: 01/12/2024] [Accepted: 01/12/2024] [Indexed: 01/15/2024]
Abstract
Diabetes is a prevalent metabolic disorder associated with various complications. Inhibition of α-glucosidase and α-amylase enzymes is an effective strategy for managing non-insulin-dependent diabetes mellitus. This study aimed to investigate the antioxidant and antidiabetic potential of Ormocarpum cochinchinense leaf through in vitro and in silico approaches. The methanol extract exhibited the highest phenolic and flavonoid content over solvent extracts aqueous, acetone, hexane, and chloroform, the same has been correlating with strong antioxidant activity. Furthermore, the methanol extract demonstrated significant inhibitory effects on α-amylase and α-glucosidase enzymes, indicating its potential as an antidiabetic agent. Molecular docking analysis identified compounds, including myo-inositol, with favorable binding energies comparable to the standard drug metformin. The selected compounds displayed strong binding affinity towards α-amylase and α-glucosidase enzymes. Structural dynamics analysis revealed that myo-inositol formed a more stable complex with the enzymes. These findings suggest that O. cochinchinense leaf possesses antioxidant and antidiabetic properties, making it a potential source for developing therapeutic agents.
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Affiliation(s)
- Ramkumar Katturajan
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, 632014
| | - Priyadharshini Shivaji
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, 632014
| | - Sangeetha Nithiyanandam
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, 632014
| | - Manisha Parthasarathy
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, 632014
| | | | - Rahul Vashishth
- Department of Biosciences, School of Biosciences and Technology, VIT, Vellore, 632014
| | - Vidya Radhakrishnan
- VIT School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, 632014, India
| | - Sabina Evan Prince
- Department of Biotechnology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, 632014
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Khenifi ML, Serseg T, Migas P, Krauze-Baranowska M, Özdemir S, Bensouici C, Alghonaim MI, Al-Khafaji K, Alsalamah SA, Boudjeniba M, Yousfi M, Boufahja F, Bendif H, Mahdid M. HPLC-DAD-MS Characterization, Antioxidant Activity, α-amylase Inhibition, Molecular Docking, and ADMET of Flavonoids from Fenugreek Seeds. Molecules 2023; 28:7798. [PMID: 38067527 PMCID: PMC10708475 DOI: 10.3390/molecules28237798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/18/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
Fenugreek (Trigonella foenum-graecum) has a great beneficial health effect; it has been used in traditional medicine by many cultures. Likewise, the α-amylase inhibitors are potential compounds in the development of drugs for the treatment of diabetes. The beneficial health effects of fenugreek lead us to explore the chemical composition of the seeds and their antioxidant and α-amylase inhibition activities. The flavonoid extraction from fenugreek seeds was achieved with methanol through a Soxhlet apparatus. Then, the flavonoid glycosides were characterized using HPLC-DAD-ESI-MS analysis. The antioxidant capacity of fenugreek seed was measured using DPPH, FRAP, ABTS, and CUPRAC assays. Finally, the α-amylase inhibition activity was carried out using in vitro and in silico methods. The methanolic extract was found to contain high amounts of total phenolics (154.68 ± 1.50 μg GAE/mg E), flavonoids (37.69 ± 0.73 μg QE/mg E). The highest radical-scavenging ability was recorded for the methanolic extract against DPPH (IC50 = 556.6 ± 9.87 μg/mL), ABTS (IC50 = 593.62 ± 9.35 μg/mL). The ME had the best reducing power according to the CUPRAC (A 0.5 = 451.90 ± 9.07 μg/mL). The results indicate that the methanolic extracts of fenugreek seed best α-amylase inhibition activities IC50 = 653.52 ± 3.24 μg/mL. Twenty-seven flavonoids were detected, and all studied flavonoids selected have good affinity and stabilize very well in the pocket of α-amylase. The interactions between the studied flavonoids with α-amylase were investigated. The flavonoids from fenugreek seed present a good inhibitory effect against α-amylase, which is beneficial for the prevention of diabetes and its complications.
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Affiliation(s)
- Mohammed Lamine Khenifi
- Laboratoire d’Ethnobotanique et Substances Naturelles, Departement of Biology, Ecole Normale Supérieure de Kouba, B.P 92, Kouba 16308, Algeria; (M.L.K.); (M.B.); (H.B.); (M.M.)
- Laboratoire des Sciences Appliquées et Didactiques, Ecole Normale Supérieure de Laghouat, B.P 4033 la gare routière, Laghouat 03000, Algeria;
| | - Talia Serseg
- Laboratoire des Sciences Appliquées et Didactiques, Ecole Normale Supérieure de Laghouat, B.P 4033 la gare routière, Laghouat 03000, Algeria;
- Fundamental Sciences Laboratory, Amar Telidji University, Laghouat 03000, Algeria;
| | - Piotr Migas
- Pharmacognosy with Medicinal Plants Garden, Medical University of Gdańsk, 80-416 Gdańsk, Poland; (P.M.); (M.K.-B.)
| | - Mirosława Krauze-Baranowska
- Pharmacognosy with Medicinal Plants Garden, Medical University of Gdańsk, 80-416 Gdańsk, Poland; (P.M.); (M.K.-B.)
| | - Sadin Özdemir
- Food Processing Programme, Technical Science Vocational School Mersin University, Mersin TR-33343, Turkey;
| | - Chawki Bensouici
- Biotechnology Research Center (CRBT), Ali Mendjli New Town UV 03, B.P E73, Constantine 25016, Algeria;
| | - Mohammed I. Alghonaim
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia; (M.I.A.); (S.A.A.)
| | - Khattab Al-Khafaji
- Department of Environmental Science, College of Energy and Environmental Science, Al-Karkh University of Science, Baghdad 10081, Iraq;
| | - Sulaiman A. Alsalamah
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia; (M.I.A.); (S.A.A.)
| | - Messaoud Boudjeniba
- Laboratoire d’Ethnobotanique et Substances Naturelles, Departement of Biology, Ecole Normale Supérieure de Kouba, B.P 92, Kouba 16308, Algeria; (M.L.K.); (M.B.); (H.B.); (M.M.)
| | - Mohamed Yousfi
- Fundamental Sciences Laboratory, Amar Telidji University, Laghouat 03000, Algeria;
| | - Fehmi Boufahja
- Biology Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia; (M.I.A.); (S.A.A.)
| | - Hamdi Bendif
- Laboratoire d’Ethnobotanique et Substances Naturelles, Departement of Biology, Ecole Normale Supérieure de Kouba, B.P 92, Kouba 16308, Algeria; (M.L.K.); (M.B.); (H.B.); (M.M.)
- Department of Natural and life Sciences, Faculty of Sciences, University of Msila, Msila 28000, Algeria
| | - Mohamed Mahdid
- Laboratoire d’Ethnobotanique et Substances Naturelles, Departement of Biology, Ecole Normale Supérieure de Kouba, B.P 92, Kouba 16308, Algeria; (M.L.K.); (M.B.); (H.B.); (M.M.)
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Fu YP, Malterud KE, Hamre AG, Inngjerdingen KT, Wangensteen H. Polysaccharides and Bioactive Phenolics from Aconitum septentrionale Roots. Chem Biodivers 2023; 20:e202300161. [PMID: 37337851 DOI: 10.1002/cbdv.202300161] [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: 02/03/2023] [Revised: 05/10/2023] [Accepted: 06/19/2023] [Indexed: 06/21/2023]
Abstract
Aconitum septentrionale is known to contain toxic diterpene alkaloids, while other bioactive compounds in the plant remain unclear. The aim of this study was to explore the phenolic compounds and polysaccharides from the water extract of A. septentrionale roots. Fifteen phenolic compounds were isolated and identified by NMR and MS, including fourteen known and one new dianthramide glucoside (2-[[2-(β-D-glucopyranosyloxy)-5-hydroxybenzoyl]amino]-4,5-dihydroxybenzoic acid methyl ester, 14). One neutral (complex of glucans with minor amounts of mannans) and two acidic polysaccharide fractions (complexes of pectic polysaccharides and glucans) were also obtained. Hydroxytyrosol (1), hydroxytyrosol-1-O-β-glucoside (2) and bracteanolide A (7) inhibited the release of nitric oxide by dendritic cells. Magnoflorine (8) and 2-[[2-(β-D-glucopyranosyloxy)-5-hydroxybenzoyl]amino]-5-hydroxybenzoic acid methyl ester (12) inhibited 15-lipoxygenase, and bracteanolide A (7) was a moderate inhibitor of xanthine oxidase. This study is the first to describe the diversity of phenolics and polysaccharides from A. septentrionale and their anti-inflammatory and anti-oxidant activities.
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Affiliation(s)
- Yu-Ping Fu
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Karl Egil Malterud
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Anne Grethe Hamre
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Kari Tvete Inngjerdingen
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
| | - Helle Wangensteen
- Section for Pharmaceutical Chemistry, Department of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316, Oslo, Norway
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Golovinskaia O, Wang CK. The hypoglycemic potential of phenolics from functional foods and their mechanisms. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.10.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Nguyen TH, Amen Y, Wang D, Othman A, Matsumoto M, Nagata M, Shimizu K. Oligomeric Proanthocyanidin Complex from Avocado Seed as A Promising α-glucosidase Inhibitor: Characteristics and Mechanisms. PLANTA MEDICA 2023; 89:316-323. [PMID: 35714650 DOI: 10.1055/a-1878-3916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Although considered an abundant source of agricultural by-products, avocado (Persea americana Mill.) seed, with several biological activities and bioactive components, might become a promising resource for phytopharmaceutical development. In this study, through bioassay-guided isolation of the main α-glucosidase inhibitors in avocado seed, we discovered the major α-glucosidase inhibitor to be avocado seed oligomeric proanthocyanidin complex (ASOPC). Thiolysis and UPLC-DAD-HRESIMS showed the presence of A- and B-type procyanidins, and B-type propelargonidin with (epi)afzelechin as extension unit. Mean degree of polymerization (mDP) of ASOPC was calculated as 7.3 ± 1. Furthermore, ASOPC appeared to be a strong, reversible, competitive inhibitor of α-glucosidase, with IC50 value of 0.1 µg/mL, which was significantly lower than Acarbose (IC50 = 75.6 µg/mL), indicated that ASOPC is a potential natural α-glucosidase inhibitor. These findings would contribute to the direction of utilizing avocado seed bioactive components with the possibility to be used as natural anti-diabetic agents.
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Affiliation(s)
- Thien Huu Nguyen
- Department of Agro-environmental Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University
- Faculty of Chemical Engineering and Food Technology, Nong Lam University - Ho Chi Minh city, Vietnam
| | - Yhiya Amen
- Department of Agro-environmental Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Dongmei Wang
- Department of Agro-environmental Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University
| | - Ahmed Othman
- Department of Agro-environmental Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Masako Matsumoto
- Department of Agro-environmental Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University
| | - Maki Nagata
- Department of Agro-environmental Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University
| | - Kuniyoshi Shimizu
- Department of Agro-environmental Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University
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9
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Haguet Q, Le Joubioux F, Chavanelle V, Groult H, Schoonjans N, Langhi C, Michaux A, Otero YF, Boisseau N, Peltier SL, Sirvent P, Maugard T. Inhibitory Potential of α-Amylase, α-Glucosidase, and Pancreatic Lipase by a Formulation of Five Plant Extracts: TOTUM-63. Int J Mol Sci 2023; 24:3652. [PMID: 36835060 PMCID: PMC9966338 DOI: 10.3390/ijms24043652] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/06/2023] [Accepted: 02/08/2023] [Indexed: 02/16/2023] Open
Abstract
Controlling post-prandial hyperglycemia and hyperlipidemia, particularly by regulating the activity of digestive enzymes, allows managing type 2 diabetes and obesity. The aim of this study was to assess the effects of TOTUM-63, a formulation of five plant extracts (Olea europaea L., Cynara scolymus L., Chrysanthellum indicum subsp. afroamericanum B.L.Turner, Vaccinium myrtillus L., and Piper nigrum L.), on enzymes involved in carbohydrate and lipid absorption. First, in vitro inhibition assays were performed by targeting three enzymes: α-glucosidase, α-amylase, and lipase. Then, kinetic studies and binding affinity determinations by fluorescence spectrum changes and microscale thermophoresis were performed. The in vitro assays showed that TOTUM-63 inhibited all three digestive enzymes, particularly α-glucosidase (IC50 of 13.1 µg/mL). Mechanistic studies on α-glucosidase inhibition by TOTUM-63 and molecular interaction experiments indicated a mixed (full) inhibition mechanism, and higher affinity for α-glucosidase than acarbose, the reference α-glucosidase inhibitor. Lastly, in vivo data using leptin receptor-deficient (db/db) mice, a model of obesity and type 2 diabetes, indicated that TOTUM-63 might prevent the increase in fasting glycemia and glycated hemoglobin (HbA1c) levels over time, compared with the untreated group. These results show that TOTUM-63 is a promising new approach for type 2 diabetes management via α-glucosidase inhibition.
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Affiliation(s)
- Quentin Haguet
- UMR 7266 CNRS-ULR, LIENSs, Equipe BCBS, La Rochelle Université, Avenue Michel Crépeau, 17042 La Rochelle, France
| | | | - Vivien Chavanelle
- Valbiotis, R&D Center, 20-22 Rue Henri et Gilberte Goudier, 63200 Riom, France
| | - Hugo Groult
- UMR 7266 CNRS-ULR, LIENSs, Equipe BCBS, La Rochelle Université, Avenue Michel Crépeau, 17042 La Rochelle, France
| | - Nathan Schoonjans
- Valbiotis, R&D Center, 23 Avenue Albert Einstein, 17000 La Rochelle, France
| | - Cédric Langhi
- Valbiotis, R&D Center, 20-22 Rue Henri et Gilberte Goudier, 63200 Riom, France
| | - Arnaud Michaux
- Valbiotis, R&D Center, 20-22 Rue Henri et Gilberte Goudier, 63200 Riom, France
| | - Yolanda F. Otero
- Valbiotis, R&D Center, 20-22 Rue Henri et Gilberte Goudier, 63200 Riom, France
| | - Nathalie Boisseau
- AME2P, STAPS, Université Clermont Auvergne, 5 Impasse Amélie Murat, 63001 Clermont-Ferrand, France
| | | | - Pascal Sirvent
- Valbiotis, R&D Center, 20-22 Rue Henri et Gilberte Goudier, 63200 Riom, France
| | - Thierry Maugard
- UMR 7266 CNRS-ULR, LIENSs, Equipe BCBS, La Rochelle Université, Avenue Michel Crépeau, 17042 La Rochelle, France
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10
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Anupong W, On-Uma R, Jutamas K, Salmen SH, Alharbi SA, Joshi D, Jhanani GK. Antibacterial, antifungal, antidiabetic, and antioxidant activities potential of Coleus aromaticus synthesized titanium dioxide nanoparticles. ENVIRONMENTAL RESEARCH 2023; 216:114714. [PMID: 36334834 DOI: 10.1016/j.envres.2022.114714] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/22/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
The nanoparticles based drug delivery and treatment related research has been increased significantly in the recent years. Hence, the antibacterial, antifungal, and antioxidant activity potential of pre synthesized and characterized Titanium dioxide nanoparticles (TiO2 NPs) were investigated in this study through respective standard protocols. Interestingly, the obtained results revealed that TiO2 NPs have concentration dependent antibacterial activity against bacterial pathogens such as E. coli, P.mirabilis, V. cholerae, P. aeruginosa, S. typhimurium, and S. aureus at 100 μg mL-1 concentration. Furthermore, these TiO2 NPs showed remarkable antifungal activity against aspergillosis causing fungal pathogens such as A. niger, A. fumigatus, A. nidulans, and A. flavus at 100 μg mL-1 concentration. α-glucosidase. This TiO2 NPs also effectively inhibit the α-amylase (17%) and α-Glucosidase (37%) enzyme activity at 100 μg mL-1 dosage. The DPPH assay revealed that TiO2 NPs effectively scavenge DPPH free radicals by up to 89% at 100 μg mL-1 concentration, which was comparable to butylated hydroxytoluene (96%). These results suggest that the plant-based TiO2 NPs have remarkable in-vitro antibacterial, antifungal, and antioxidant activity. These may be considered for additional in-vitro and in-vivo experiments to assess their potential biomedical applications.
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Affiliation(s)
- Wongchai Anupong
- Department of Agricultural Economy and Development, Faculty of Agriculture, Chiang Mai University, 50200, Thailand; Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Ruangwong On-Uma
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, 50200, Thailand; Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Kumchai Jutamas
- Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand; Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Saleh H Salmen
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box -2455, Riyadh, 11451, Saudi Arabia
| | - Deepika Joshi
- Department of Oral Biology, University of Louisville, Kentucky, USA
| | - G K Jhanani
- Center for Transdisciplinary Research (CFTR), Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
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The α-Amylase and α-Glucosidase Inhibition Capacity of Grape Pomace: A Review. FOOD BIOPROCESS TECH 2023; 16:691-703. [PMID: 36062030 PMCID: PMC9427156 DOI: 10.1007/s11947-022-02895-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 08/20/2022] [Indexed: 11/30/2022]
Abstract
The concept of functional foods is gaining more importance due to its role in maintaining a healthy status and preventing some metabolic diseases. The control of diabetes, in particular type-2 (T2DM), could be considered a big challenge since it involves other factors such as eating habits. From the pharmacological point of view, inhibiting digestive enzymes, such as α-amylase and α-glucosidase, is one of the mechanisms mainly used by synthetic drugs to control this disease; however, several side effects are described. For that reason, using bioactive compounds may appear as an alternative without presenting the complications synthetic drugs available on the market have. The winemaking industry generates tons of waste annually, and grape pomace (GP) is the most important. GP is recognized for its nutritional value and as a source of bioactive compounds that are helpful for human health. This review highlights the importance of GP as a possible source of α-amylase and α-glucosidase inhibitors. Also, it is emphasized the components involved in this bioactivity and the possible interactions among them. Especially, some phenolic compounds and fiber of GP are the main ones responsible for interfering with the human digestive enzymes. Preliminary studies in vitro confirmed this bioactivity; however, further information is required to allow the specific use of GP as a functional ingredient inside the market of products recommended for people with diabetes. Graphical abstract
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12
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Recent Advances Regarding the Molecular Mechanisms of Triterpenic Acids: A Review (Part II). Int J Mol Sci 2022; 23:ijms23168896. [PMID: 36012159 PMCID: PMC9408012 DOI: 10.3390/ijms23168896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/04/2022] [Accepted: 08/08/2022] [Indexed: 12/18/2022] Open
Abstract
Triterpenic acids are a widespread class of phytocompounds which have been found to possess valuable therapeutic properties such as anticancer, anti-inflammatory, hepatoprotective, cardioprotective, antidiabetic, neuroprotective, lipolytic, antiviral, and antiparasitic effects. They are a subclass of triterpenes bearing a characteristic lipophilic structure that imprints unfavorable in vivo properties which subsequently limit their applications. The early investigation of the mechanism of action (MOA) of a drug candidate can provide valuable information regarding the possible side effects and drug interactions that may occur after administration. The current paper aimed to summarize the most recent (last 5 years) studies regarding the MOA of betulinic acid, boswellic acid, glycyrrhetinic acid, madecassic acid, moronic acid, and pomolic acid in order to provide scientists with updated and accessible material on the topic that could contribute to the development of future studies; the paper stands as the sequel of our previously published paper regarding the MOA of triterpenic acids with therapeutic value. The recent literature published on the topic has highlighted the role of triterpenic acids in several signaling pathways including PI3/AKT/mTOR, TNF-alpha/NF-kappa B, JNK-p38, HIF-α/AMPK, and Grb2/Sos/Ras/MAPK, which trigger their various biological activities.
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Dlamini BS, Chen CR, Chen YK, Hsu JL, Shih WL, Chang CI. Mechanistic insights into the inhibitory activities of chemical constituents from the fruits of Terminalia boivinii on α-glucosidase. Chem Biodivers 2022; 19:e202200137. [PMID: 35726787 DOI: 10.1002/cbdv.202200137] [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: 02/14/2022] [Accepted: 06/21/2022] [Indexed: 11/09/2022]
Abstract
Regulation of key digestive enzymes is currently considered an effective remedy for diabetes mellitus. In this study, bioactive constituents were purified from Terminalia boivinii fruits and identified by 1 H NMR, 13 C NMR and EI-MS. In vitro and in silico methods were used to evaluate α-glucosidase, α-amylase, and lipase inhibition activities. Compounds 1 , 2 , and 4-7 with IC50 values between 89 and 445 µM showed stronger α-glucosidase inhibitory activities than the antihyperglycemic drug acarbose (IC 50 =1463.0 ± 29.5 µM). However, the compounds showed lower inhibitory effects against α-amylase and lipase with IC 50 values above 500 µM than acarbose (IC 50 = 16.7 ± 3.5 µM) and ursolic acid (IC 50 = 89.5 ± 5.6 µM), respectively. Lineweaver-Burk plots showed that compounds 1 , 2 , and 7 were non-competitive inhibitors, compounds 4 and 5 were competitive inhibitors and compound 6 was a mixed-type inhibitor. Fluorescence spectroscopic data showed that the compounds altered the microenvironment and conformation of α-glucosidase. Computer simulations indicated that the compounds and enzyme interacted primarily through hydrogen bonding. The findings indicated that the compounds were inhibitors of α-glucosidase and provided significant structural basis for understanding the binding activity of the compounds with α-glucosidase.
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Affiliation(s)
- Bongani Sicelo Dlamini
- National Pingtung University of Science and Technology, Department of Tropical Agriculture and International Cooperation, No. 1, Shuefu Road, Neipu Pingtung County 91201, Taiwan, 91201, Pingtung, TAIWAN
| | - Chiy-Rong Chen
- National Taitung University, Department of Life Science, Taitung 95002, Taiwan, Taitung, TAIWAN
| | - Yu-Kuo Chen
- National Pingtung University of Science and Technology, Department of Food Science, Pingtung 91201, Taiwan, Pingtung, TAIWAN
| | - Jue-Liang Hsu
- National Pingtung University of Science and Technology, Department of Biological Science and Technology, Pingtung 91201, Taiwan, Pingtung, TAIWAN
| | - Wen-Ling Shih
- National Pingtung University of Science and Technology, Department of Biological Science and Technology, Pingtung 91201, Taiwan, Pingtung, TAIWAN
| | - Chi-I Chang
- National Pingtung University of Science and Technology, Department of Biological Science and Technology, No.1, Shuehfu Road, Neipu, 91201, Pingtung, TAIWAN
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14
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Fajriah S, Rizki IF, Sinurat E. Characterization and analysis of the antidiabetic activities of sulphated polysaccharide extract from Caulerpa lentillifera. PHARMACIA 2021. [DOI: 10.3897/pharmacia.68.e73158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Caulerpa lentillifera is a type of green seaweed that is cultivated in tropical and subtropical areas. The objectives of this study were to determine the characteristics of the sulfated polysaccharides from C. lentillifera and evaluate its antidiabetic activity. In the initial process of this study, samples were macerated with ethanol (1:10). Then, the maceration residue was extracted with an accumulator at 75 °C for three hours. The crude extract yield was 4.16% based on weight seaweed. Ion chromatography purification with DEAE-Sepharose resin provided a yield of 14.8% of crude extract. The monomer analysis of C. lentillifera from the crude extract and purified extract revealed that galactose monomers were dominant and glucose was a minor component. The total carbohydrate and sulfate contents of purified C. lentillifera were higher than those of crude C. lentillifera. Bioactivity tests revealed that purified polysaccharides had higher antidiabetic activity against α-glucosidase enzyme than crude ones with IC50 values of 134.81± 2.0 µg/mL. Purified sulfated polysaccharides of C. lentillifera could potentially be used as an antidiabetic medication.
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Otero P, Garcia-Oliveira P, Carpena M, Barral-Martinez M, Chamorro F, Echave J, Garcia-Perez P, Cao H, Xiao J, Simal-Gandara J, Prieto M. Applications of by-products from the olive oil processing: Revalorization strategies based on target molecules and green extraction technologies. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.09.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Cytotoxicity, Anti-Obesity and Anti-Diabetic Activities of Heteromorpha arborescens (Spreng.) Cham Leaves. Processes (Basel) 2021. [DOI: 10.3390/pr9091671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study investigated the cytotoxicity, anti-obesity and anti-diabetic potentials of blanched, aqueous and ethanol extracts of Heteromorpha arborescens (Spreng.) Cham leaves. The results revealed that both ethanol and aqueous extracts exhibited considerable inhibition against α-glucosidase (IC50 of 627.29 ± 4.62 µg/mL and 576.46 ± 3.21 µg/mL respectively), while the blanched extract showed weak α-glucosidase inhibition (IC50; 855.38 ± 4.29 µg/mL) and the aqueous extract showed the best α-amylase inhibition (IC50; 583.74 ± 5.87 µg/mL). However, weak α-amylase inhibition was observed in the ethanol (IC50; 724.60 ± 4.33 µg/mL) and blanched extracts (IC50; 791.63 ± 3.76 µg/mL). The toxicity of the extracts is indicated by LC50 values as 154.75 µg/mL, 125 µg/mL and 90.58 µg/mL for ethanol, aqueous and blanched extracts respectively, indicating the blanched extract to be the most toxic. Moderate glucose utilization in both C3A and L6 cells was also observed for the aqueous and ethanol extracts which may be attributed to the relatively lower toxicity levels present. However, glucose utilization was very weak for the blanched extract, which may be due to higher level of cytotoxicity it possessed. Relatively weaker lipase inhibition was observed for the ethanol (IC50; 699.3 ± 1.33 µg/mL), aqueous (IC50; 811.52 ± 3.52 µg/mL) and blanched extracts (IC50; 1152.7 ± 4.61 µg/mL) compared to orlistat (IC50; 56.88 ± 0.11 µg/mL). However, there was no reasonable reduction in lipid accumulation observed in all the extract treated cells. These observations suggest that ethanol and aqueous extracts of H. arborescens leaf are promising as new agents for the treatment of diabetes and its acclaimed anti-obesity potentials are likely due to its lipase, α-amylase and α-glucosidase inhibition.
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Kulkarni S, Dwivedi P, Danappanvar AN, Subhash BA, Patil BM. Identification of α-amylase inhibitors from flavonoid fraction of Feronia elephantum and its integration with in-silico studies. In Silico Pharmacol 2021; 9:50. [PMID: 34458069 PMCID: PMC8353021 DOI: 10.1007/s40203-021-00099-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 06/09/2021] [Indexed: 01/01/2023] Open
Abstract
Postprandial hyperglycemia is associated with an increase in blood glucose levels after a meal, which is further associated with various risk factors like cardiovascular diseases. α-amylase is a digestive enzyme and secreted by the salivary glands and pancreas, which helps to catalyze the hydrolysis of the internal α-1,4-glycosidic linkages in starch breaking them into smaller units. Hence, the present study is aimed to identify flavonoids from the fruit pulp of Feronia elephantum as α-amylase inhibitors via in-silico and in-vitro protocols. In-silico tools like ADVERPred, PubChem, MolSoft, Discovery studio 2019, and Autodock 4.0 were used to predict the information related to phytoconstituents, drug-likeness character, and probable side effects. In-vitro α-amylase inhibitory activity was performed with five different concentrations of flavonoid fraction of hydroalcoholic extract of the fruit pulp of Feronia elephantum using 1% starch solution and DNS reagent. Four flavonoids were identified from 25 bio-actives present in the fruit pulp of Feronia elephantum. Three bio-actives were predicted to possess a positive drug-likeness score, from which 5,4-dihydroxy3-3(3-methyl-but2-enyl)3,5,6-trimethoxy-flavone-7-O-β-d-Glucopyranoside was predicted to possess the highest drug-likeness score of 0.70. Vitexin and 5,4-dihydroxy3-3(3-methyl-but2-enyl)3,5,6-trimethoxy-flavone-7-O-β-d-Glucopyranoside were predicted to possess nephrotoxicity as an adverse effect. The percent inhibition of α-amylase by a flavonoid-rich fraction at 100 μg/ml was found to be 45.95% as compared to standard acarbose with 74.79% inhibition at 100 μg/ml. Further, docking studies predicted that vitexin possessed the highest binding affinity (binding energy - 7.98 kcal/mol) as compared to standard acarbose with binding energy - 5.24 kcal/mol. There were no significant side effects predicted, in-vitro α-amylase inhibitory activity of the flavonoid-rich fraction may be due to the presence of vitexin, predicted via in-silico molecular docking; further, which needs to be further validated via in-vivo protocols.
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Affiliation(s)
- Saikiran Kulkarni
- Department of Pharmacology and Toxicology, KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research (KAHER), Belagavi, 590010 India
| | - Prarambh Dwivedi
- Department of Pharmacology and Toxicology, KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research (KAHER), Belagavi, 590010 India
| | - Aravinda Nagaraj Danappanvar
- Department of Pharmacology and Toxicology, KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research (KAHER), Belagavi, 590010 India
| | - Belgaonkar Ashwini Subhash
- Department of Pharmacology and Toxicology, KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research (KAHER), Belagavi, 590010 India
| | - B. M. Patil
- Department of Pharmacology and Toxicology, KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research (KAHER), Belagavi, 590010 India
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Determination of the Chemical Composition, Antioxidant, and Enzyme Inhibitory Activity of Onosma mollis DC. J CHEM-NY 2021. [DOI: 10.1155/2021/5405365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Onosma species have long been used traditionally for respiratory tract infections, abdominal pain, wound treatment, burns, and constipation. This study aims to investigate the chemical composition and in vitro antioxidant and enzyme inhibitory activities of ethyl acetate (EtOAc), methanol (MeOH), and water extracts of Onosma mollis DC. MeOH extract was richer in both phenolics and flavonoids than other extracts (44.06 mg GAEs/g and 41.57 mg QEs/g, respectively). The findings obtained from the results of the chromatographic analysis also supported the results of the spectrophotometric analysis. The MeOH extract was the richest in terms of most of the phytochemicals screened. Apigenin 7-glucoside, luteolin 7-glucoside, rosmarinic acid, vanillic acid, and pinoresinol were over 1000.0 μg/g in MeOH extract. The extract in question showed the highest activity in phosphomolybdenum, DPPH, and ABTS radical scavenging and CUPRAC and FRAP reducing power activity assays (2.01, 3.33, 2.30, 1.48, and 0.79 mg/ml, respectively). The water extract presented the highest activity in the ferrous ion chelating assay (1.01 mg/ml). While EtOAc extract showed high activity in acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and α-glucosidase inhibitory activity tests (1.11, 1.49, and 1.07 mg/ml, respectively), MeOH extract showed significant efficacy in tyrosinase and α-amylase inhibitory activity assays (2.94 and 2.08 mg/ml, respectively). There was a high correlation between the total phenolics/flavonoids of the extracts and their antioxidant activities (correlation coefficients were over 0.9). In addition, the phytochemicals mentioned above were found to contribute significantly to the antioxidant activity. It was concluded that a more detailed analysis should be done to determine the compounds responsible for the enzyme inhibitory activities of the extracts.
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Sanchez-Rodriguez E, Vazquez-Aguilar LA, Biel-Glesson S, Fernandez-Navarro JR, Espejo-Calvo JA, Olmo-Peinado JM, de la Torre R, Fito-Colomer M, Covas MI, Romero C, Brenes M, Martinez de Victoria E, Gil A, Mesa MD. May bioactive compounds from the olive fruit improve the postprandial insulin response in healthy adults? J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Antimicrobial and Wound Healing Properties of FeO Fabricated Chitosan/PVA Nanocomposite Sponge. Antibiotics (Basel) 2021; 10:antibiotics10050524. [PMID: 34063621 PMCID: PMC8147619 DOI: 10.3390/antibiotics10050524] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 04/28/2021] [Accepted: 04/30/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetic and anemia-associated diabetic wounds increase the considerable morbidity and mortality in people, as reported by clinical studies. However, no anemia-associated diabetic wound dressing materials have been developed until now. Hence, this study aimed to develop a nanocomposite scaffold composed of chitosan (CS), poly (vinyl alcohol) (PVA), and phytogenic iron oxide nanoparticles (FeO NPs), for accelerated anemia-associated diabetic wound healing. The aqueous leaves extract of Pinus densiflora (PD) was utilized for the synthesis of iron oxide nanoparticles (FeO NPs). TEM and elemental analysis confirmed smaller size PD-FeO NPs (<50 nm) synthesis with the combination of iron and oxide. In addition, in vitro biological studies displayed the moderate antioxidant, antidiabetic activities, and considerable antibacterial activity of PD-FeO NPs. Further, the different concentrations of PD-FeO NPs (0.01, 0.03, and 0.05%) incorporated CS/PVA nanocomposites sponges were developed by the freeze-drying method. The porous structured morphology and the presence of PD-FeO NPs were observed under FE-SEM. Among nanocomposite sponges, PD-FeO NPs (0.01%) incorporated CS/PVA sponges were further chosen for the in vitro wound-healing assay, based on the porous and water sorption nature. Furthermore, the in vitro wound-healing assay revealed that PD-FeO NPs (0.01%) incorporated CS/PVA has significantly increased the cell proliferation in HEK293 cells. In conclusion, the CS/PVA-PD-FeO NPs (0.01%) sponge would be recommended for diabetic wound dressing after a detailed in vivo evaluation.
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