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Nada AA, Metwally AM, Asaad AM, Celik I, Ibrahim RS, Eldin SMS. Synergistic effect of potential alpha-amylase inhibitors from Egyptian propolis with acarbose using in silico and in vitro combination analysis. BMC Complement Med Ther 2024; 24:65. [PMID: 38291462 PMCID: PMC10826043 DOI: 10.1186/s12906-024-04348-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 01/11/2024] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND Type 2 Diabetes mellitus (DM) is an affliction impacting the quality of life of millions of people worldwide. An approach used in the management of Type 2 DM involves the use of the carbohydrate-hydrolyzing enzyme inhibitor, acarbose. Although acarbose has long been the go-to drug in this key approach, it has become apparent that its side effects negatively impact patient adherence and subsequently, therapeutic outcomes. Similar to acarbose in its mechanism of action, bee propolis, a unique natural adhesive biomass consisting of biologically active metabolites, has been found to have antidiabetic potential through its inhibition of α-amylase. To minimize the need for ultimately novel agents while simultaneously aiming to decrease the side effects of acarbose and enhance its efficacy, combination drug therapy has become a promising pharmacotherapeutic strategy and a focal point of this study. METHODS Computer-aided molecular docking and molecular dynamics (MD) simulations accompanied by in vitro testing were used to mine novel, pharmacologically active chemical entities from Egyptian propolis to combat Type 2 DM. Glide docking was utilized for a structure-based virtual screening of the largest in-house library of Egyptian propolis metabolites gathered from literature, in addition to GC-MS analysis of the propolis sample under investigation. Thereafter, combination analysis by means of fixed-ratio combinations of acarbose with propolis and the top chosen propolis-derived phytoligand was implemented. RESULTS Aucubin, identified for the first time in propolis worldwide and kaempferol were the most promising virtual hits. Subsequent in vitro α-amylase inhibitory assay demonstrated the ability of these hits to significantly inhibit the enzyme in a dose-dependent manner with an IC50 of 2.37 ± 0.02 mM and 4.84 ± 0.14 mM, respectively. The binary combination of acarbose with each of propolis and kaempferol displayed maximal synergy at lower effect levels. Molecular docking and MD simulations revealed a cooperative binding mode between kaempferol and acarbose within the active site. CONCLUSION The suggested strategy seems imperative to ensure a steady supply of new therapeutic entities sourced from Egyptian propolis to regress the development of DM. Further pharmacological in vivo investigations are required to confirm the potent antidiabetic potential of the studied combination.
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Affiliation(s)
- Ahmed A Nada
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alkhartoom Square, Alexandria, 21521, Egypt
| | - Aly M Metwally
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alkhartoom Square, Alexandria, 21521, Egypt
| | - Aya M Asaad
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alkhartoom Square, Alexandria, 21521, Egypt
| | - Ismail Celik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri, 38039, Turkey
| | - Reham S Ibrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alkhartoom Square, Alexandria, 21521, Egypt.
| | - Safa M Shams Eldin
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alkhartoom Square, Alexandria, 21521, Egypt
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Eldin SMS, Shawky E, Ghareeb DA, El Sohafy SM, Sallam SM. Metabolomics and chemometrics depict the changes in the chemical profile of white lupine (Lupinus albus L.) bioactive metabolites during seed germination. Food Chem 2023; 418:135967. [PMID: 36965385 DOI: 10.1016/j.foodchem.2023.135967] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 03/12/2023] [Accepted: 03/13/2023] [Indexed: 03/27/2023]
Abstract
The current study attempts to illustrate how the chemical and biological profile of white lupine seeds varies throughout the course of various germination days using UHPLC-QqQ-MS combined to chemometrics. Abscisic acid showed maximum level in the un-germinated seeds and started to decline with seed germination accompanied by an increase in the levels of gibberellins which were undetectable in un-germinated seeds. Coumaronochromones were the most prevalent constituents detected in un-germinated seeds while day 2 sprouts showed significant accumulation of flavones. The levels of alkaloids showed significant increase upon germination of the seeds reaching its maximum in day 14 sprouts. The OPLS model coefficients plot indicated that lupinalbin D and F, apigenin hexoside, kaempferol hexoside, albine, and hydoxylupanine showed strong positive correlation to the alpha amylase inhibitory activity of the tested samples while lupinalbin A, lupinisoflavone, lupinic acid and multiflorine were positively correlated to the inhibition of alpha glycosidase activity. The results obtained indicated that seed germination has a profound effect on the chemical profile as well as the in-vitro antidiabetic activity of lupine seeds.
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Affiliation(s)
- Safa M Shams Eldin
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Egypt
| | - Eman Shawky
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Egypt.
| | - Doaa A Ghareeb
- Bio‑Screening and Preclinical Trial Lab, Biochemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Samah M El Sohafy
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Egypt
| | - Shaimaa M Sallam
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Egypt
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Nada AA, Nour IH, Metwally AM, Asaad AM, Shams Eldin SM, Ibrahim RS. An integrated strategy for chemical, biological and palynological standardization of bee propolis. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Shams Eldin SM, Radwan MM, Wanas AS, Habib AAM, Kassem FF, Hammoda HM, ElSohly MA. A Validated UPLC-PDA Method for Simultaneous Determination of 3 Biologically Active Isoflavans in Trigonella stellata Extract. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20940118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this study, an ultra-performance liquid chromatography (UPLC)/photodiode array method was developed for the simultaneous determination of trigonellan glucoside (1), isotrigonellan (2), and methoxy-isotrigonellan (3) in Trigonella stellata extract using an external standard method. The extract was prepared using a standardized method by maceration of the dried plant material in ethanol. The 3 isoflavans (1-3) were separated on an Acquity UPLC C18 column using gradient elution with a mobile phase consisting of 0.1% (v/v) formic acid aqueous solution and 0.1% (v/v) formic acid in acetonitrile, and ultraviolet detection. The method provides a linear correlation for all analytes over the investigated ranges with all correlation coefficients greater than 0.998. The validated lower limits of quantitation were 53, 127, and 5 μg/mL for isoflavans 1, 2, and 3, respectively. Intraday and interday precisions (percent relative SD [RSD%]) were less than 8.3% and accuracy (RE%) ranged from 90% to 100%. The method’s capability to remain unaffected by small, but deliberate variations in method parameters (method’s reliability during normal usage) described by the robustness showed RSD% less than 4.6% measured by varying 3 different parameters. The validated method was successfully applied to simultaneously determine the concentration of the 3 new isoflavans having anti-inflammatory and antidiabetic activities. The results revealed that the validated method can be used for quality control of herbal preparations containing these or similar isoflavans that are marketed for the prevention of inflammation and as antidiabetics.
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Affiliation(s)
- Safa M. Shams Eldin
- National Center for Natural Products Research, University of Mississippi, MS, USA
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Mohamed M. Radwan
- National Center for Natural Products Research, University of Mississippi, MS, USA
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Amira S. Wanas
- National Center for Natural Products Research, University of Mississippi, MS, USA
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Abdel-Azim M. Habib
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Fahima F. Kassem
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Hala M. Hammoda
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Mahmoud A. ElSohly
- National Center for Natural Products Research, University of Mississippi, MS, USA
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, MS, USA
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Shams Eldin SM, Radwan MM, Wanas AS, Habib AAM, Kassem FF, Hammoda HM, Khan SI, Klein ML, Elokely KM, ElSohly MA. Bioactivity-Guided Isolation of Potential Antidiabetic and Antihyperlipidemic Compounds from Trigonella stellata. J Nat Prod 2018; 81:1154-1161. [PMID: 29676912 DOI: 10.1021/acs.jnatprod.7b00707] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The in vitro antidiabetic and antihyperlipidemic activities of an alcoholic extract of Trigonella stellata were evaluated in terms of the activation of PPARα and PPARγ in human hepatoma (HepG2) cells. The extract was investigated phytochemically, aiming at the isolation of the most active compounds to be used as a platform for drug discovery. Three new isoflavans, (3 S,4 R)-4,2',4'-trihydroxy)-7-methoxyisoflavan (1), (3 R,4 S)-4,2',4'-trihydroxy-7-methoxy-4'- O-β-d-glucopyranosylisoflavan (2), and (2 S,3 R,4 R)-4,2',4'-trihydroxy-2,7-dimethoxyisoflavan (3), were isolated and characterized along with the five known compounds p-hydroxybenzoic acid (4), 7,4'-dihydroxyflavone (5), dihydromelilotoside (6), quercetin-3,7- O-α-l-dirhamnoside (7), and soyasaponin I (8). The structures of 1-3 were elucidated using various spectroscopic techniques including HRESIMS and 1D and 2D NMR. The absolute stereochemistry of the new isoflavans (1-3) was determined using both experimental and calculated electronic circular dichroism as well as DP4 calculations. The isolated compounds were tested for their PPARα and PPARγ activation effects in HepG2 cells.
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Affiliation(s)
- Safa M Shams Eldin
- National Center for Natural Products Research, School of Pharmacy , University of Mississippi , University , Mississippi 38677 , United States
- Department of Pharmacognosy, Faculty of Pharmacy , Alexandria University , Alexandria 21521 , Egypt
| | - Mohamed M Radwan
- National Center for Natural Products Research, School of Pharmacy , University of Mississippi , University , Mississippi 38677 , United States
- Department of Pharmacognosy, Faculty of Pharmacy , Alexandria University , Alexandria 21521 , Egypt
| | - Amira S Wanas
- National Center for Natural Products Research, School of Pharmacy , University of Mississippi , University , Mississippi 38677 , United States
- Department of Pharmacognosy, Faculty of Pharmacy , Minia University , Minia 61519 , Egypt
| | - Abdel-Azim M Habib
- Department of Pharmacognosy, Faculty of Pharmacy , Alexandria University , Alexandria 21521 , Egypt
| | - Fahima F Kassem
- Department of Pharmacognosy, Faculty of Pharmacy , Alexandria University , Alexandria 21521 , Egypt
| | - Hala M Hammoda
- Department of Pharmacognosy, Faculty of Pharmacy , Alexandria University , Alexandria 21521 , Egypt
| | - Shabana I Khan
- National Center for Natural Products Research, School of Pharmacy , University of Mississippi , University , Mississippi 38677 , United States
| | | | - Khaled M Elokely
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Tanta University , Tanta 31527 , Egypt
| | - Mahmoud A ElSohly
- National Center for Natural Products Research, School of Pharmacy , University of Mississippi , University , Mississippi 38677 , United States
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy , University of Mississippi , University , Mississippi 38677 , United States
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