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Ozerov A, Merezhkina D, Zubkov FI, Litvinov R, Ibragimova U, Valuisky N, Borisov A, Spasov A. Synthesis and antiglycation activity of 3-phenacyl substituted thiazolium salts, new analogs of Alagebrium. Chem Biol Drug Des 2024; 103:e14391. [PMID: 37929334 DOI: 10.1111/cbdd.14391] [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: 09/09/2023] [Revised: 10/12/2023] [Accepted: 10/22/2023] [Indexed: 11/07/2023]
Abstract
After preliminary ab initio calculations, 3-phenacyl substituted thiazolium salts, analogs of Alagebrium, were synthesized and investigated in vitro as glycation reaction inhibitors. The most part of investigations focused on the potential of the title compounds to attenuate the formation of fluorescent AGEs as well on their ability to disrupt the cross-linking formation among glycated proteins. Additionally, the capability of thiazolium salts to deglycate in the reaction of early glycation products with nitroblue tetrazolium was determined. Cytotoxicological properties of the title compounds were evaluated using LDH and MTT assays. The leader compound (3-[2-(biphenyl-4-yl)-2-oxoethyl]-1,3-thiazol-3-ium bromide) in a 50 mg/kg dose (p.o. 14 days) was further tested within an in vivo carbonyl stress model (rats, methylglyoxal 86.25 mg/kg/d, i.p., 14 days). As a result, the leader-molecule revealed a high effectiveness against all three examined mechanisms of glycation reaction inhibition in in vitro tests and was able to suppress capacity of methylglyoxal to form AGEs in vivo.
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Affiliation(s)
- Alexander Ozerov
- Department of Pharmaceutical & Toxicological Chemistry, Volgograd State Medical University, Volgograd, Russia
| | - Darya Merezhkina
- Department of Pharmaceutical & Toxicological Chemistry, Volgograd State Medical University, Volgograd, Russia
| | - Fedor I Zubkov
- Organic Chemistry Department, RUDN University, Moscow, Russia
| | - Roman Litvinov
- Department of Pharmacology & Bioinformatics, Volgograd State Medical University, Volgograd, Russia
| | - Umida Ibragimova
- Department of Pharmacology & Bioinformatics, Volgograd State Medical University, Volgograd, Russia
| | - Nikita Valuisky
- Department of Pharmacology & Bioinformatics, Volgograd State Medical University, Volgograd, Russia
| | - Alexander Borisov
- Department of Pharmacology & Bioinformatics, Volgograd State Medical University, Volgograd, Russia
| | - Alexander Spasov
- Department of Pharmacology & Bioinformatics, Volgograd State Medical University, Volgograd, Russia
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Rodríguez-Pérez MD, Pérez de Algaba I, Martín-Aurioles E, Arrebola MM, Ortega-Hombrados L, Verdugo C, Fernández-Prior MÁ, Bermúdez-Oria A, De La Cruz JP, González-Correa JA. Neuroprotective Effect of 3',4'-Dihydroxyphenylglycol in Type-1-like Diabetic Rats-Influence of the Hydroxytyrosol/3',4'-dihydroxyphenylglycol Ratio. Nutrients 2022; 14:nu14061146. [PMID: 35334801 PMCID: PMC8950825 DOI: 10.3390/nu14061146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/04/2022] [Accepted: 03/07/2022] [Indexed: 12/04/2022] Open
Abstract
The aim of this study was to assess the possible neuroprotective effect of 3′,4′-dihydroxyphenylglycol (DHPG), a polyphenol from extra virgin olive oil (EVOO), in an experimental model of diabetes and whether this effect is modified by the presence of another EVOO polyphenol, hydroxytyrosol (HT). The neuroprotective effect was assessed in a hypoxia–reoxygenation model in brain slices and by quantifying retinal nerve cells. The animals were distributed as follows: (1) normoglycemic rats (NDR), (2) diabetic rats (DR), (3) DR treated with HT (5 mg/kg/day p.o.), (4) DR treated with DHPG (0.5 mg/kg/day), or (5) with 1 mg/kg/day, (6) DR treated with HT plus DHPG 0.5 mg/kg/day, or (7) HT plus 1 mg/kg/day p.o. DHPG. Diabetic animals presented higher levels of oxidative stress variables and lower numbers of neuronal cells in retinal tissue. The administration of DHPG or HT reduced most of the oxidative stress variables and brain lactate dehydrogenase efflux (LDH) as an indirect index of cellular death and also reduced the loss of retinal cells. The association of DHPG+HT in the same proportions, as found in EVOO, improved the neuroprotective and antioxidant effects of both polyphenols.
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Affiliation(s)
- María Dolores Rodríguez-Pérez
- Department of Pharmacology, Biomedical Research Institute (IBIMA), School of Medicine, University of Málaga, 29010 Málaga, Spain; (M.D.R.-P.); (L.O.-H.); (C.V.); (J.A.G.-C.)
| | | | | | | | - Laura Ortega-Hombrados
- Department of Pharmacology, Biomedical Research Institute (IBIMA), School of Medicine, University of Málaga, 29010 Málaga, Spain; (M.D.R.-P.); (L.O.-H.); (C.V.); (J.A.G.-C.)
| | - Cristina Verdugo
- Department of Pharmacology, Biomedical Research Institute (IBIMA), School of Medicine, University of Málaga, 29010 Málaga, Spain; (M.D.R.-P.); (L.O.-H.); (C.V.); (J.A.G.-C.)
| | - María África Fernández-Prior
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), Ctra. Utrera Km 1, Campus Universitario Pablo de Olavide, Edificio 46, 41013 Seville, Spain; (M.Á.F.-P.); (A.B.-O.)
| | - Alejandra Bermúdez-Oria
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), Ctra. Utrera Km 1, Campus Universitario Pablo de Olavide, Edificio 46, 41013 Seville, Spain; (M.Á.F.-P.); (A.B.-O.)
| | - José Pedro De La Cruz
- Department of Pharmacology, Biomedical Research Institute (IBIMA), School of Medicine, University of Málaga, 29010 Málaga, Spain; (M.D.R.-P.); (L.O.-H.); (C.V.); (J.A.G.-C.)
- Correspondence: ; Tel.: +34-952131567
| | - José Antonio González-Correa
- Department of Pharmacology, Biomedical Research Institute (IBIMA), School of Medicine, University of Málaga, 29010 Málaga, Spain; (M.D.R.-P.); (L.O.-H.); (C.V.); (J.A.G.-C.)
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Winder NR, Reeve EH, Walker AE. Large artery stiffness and brain health: insights from animal models. Am J Physiol Heart Circ Physiol 2020; 320:H424-H431. [PMID: 33164578 DOI: 10.1152/ajpheart.00696.2020] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
There are no effective treatments available to halt or reverse the progression of age-related cognitive decline and Alzheimer's disease. Thus, there is an urgent need to understand the underlying mechanisms of disease etiology and progression to identify novel therapeutic targets. Age-related changes to the vasculature, particularly increases in stiffness of the large elastic arteries, are now recognized as important contributors to brain aging. There is a growing body of evidence for an association between greater large artery stiffness and cognitive impairment among both healthy older adults and patients with Alzheimer's disease. However, studies in humans are limited to only correlative evidence, whereas animal models allow researchers to explore the causative mechanisms linking arterial stiffness to neurocognitive dysfunction and disease. Recently, several rodent models of direct modulation of large artery stiffness and the consequent effects on the brain have been reported. Common outcomes among these models have emerged, including evidence that greater large artery stiffness causes cerebrovascular dysfunction associated with increased oxidative stress and inflammatory signaling. The purpose of this mini-review is to highlight the recent findings associating large artery stiffness with deleterious brain outcomes, with a specific focus on causative evidence obtained from animal models. We will also discuss the gaps in knowledge that remain in our understanding of how large artery stiffness affects brain function and disease outcomes.
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Affiliation(s)
- Nick R Winder
- Department of Human Physiology, University of Oregon, Eugene, Oregon
| | - Emily H Reeve
- Department of Human Physiology, University of Oregon, Eugene, Oregon
| | - Ashley E Walker
- Department of Human Physiology, University of Oregon, Eugene, Oregon
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Hassan S, Abdelrahman Moustafa A, Kabil SL, Mahmoud NM. Alagebrium Mitigates Metabolic Insults in High Carbohydrate and High Fat Diet Fed Wistar Rats. PHARMACEUTICAL SCIENCES 2020. [DOI: 10.34172/ps.2019.66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background: Metabolic syndrome (MS) is characterized by sustained hyperglycemia that triggers advanced glycation end products (AGEs) generation. Alagebrium (ALA) is an advanced glycation end products (AGEs) cross-links breaker.Methods: 32 Wistar rats were divided into normal control (NC) group (8 rats) and MS groups (24 rats) received a high carbohydrate high fat diet (HCFD) for 10 weeks. Rats with established MS were equally divided into 3 subgroups remained on HCFD for further 6 weeks: MS control (MSC), ALA treated received 10 mg/kg/day ALA orally and metformin treated (MF) (a reference drug) received 50 mg/kg/day MF orally. The studied parameters were systolic blood pressure (SBP), body and liver weights (BW, LW), LW/BW% ratio, fasting blood glucose (FBG), serum insulin, lipid profile, liver enzymes, serum AGEs, hepatic Interleukin-17 (IL-17), adipokines, pAkt/Akt ratio, and liver histopathology.Results: HCFD elevated SBP, BW, LW and LW/BW% ratio, FBG, serum insulin, and AGEs. It also deteriorated lipid profile and liver enzymes, induced inflammation, insulin resistance and histopathological derangements. ALA ameliorated the elevated SBP, FBG, lipid profile, liver enzymes, mitigated insulin resistance, hepatic IL-17, serum AGEs, modulated adipokines levels and improved liver histopathology. However, MF had better effects than ALA in all studied parameters except AGEs.Conclusion: ALA is protective against dietary-induced MS via ameliorating the inflammatory process and serum AGEs that implicated in MS pathogenesis, which makes it a promising new tool in MS treatment.
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Affiliation(s)
- Seba Hassan
- Department of Clinical Pharmacology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | | | - Soad Lotfy Kabil
- Department of Clinical Pharmacology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Nevertyty M Mahmoud
- Department of Clinical Pharmacology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Identification of Antiglycative Compounds in Japanese Red Water Pepper (Red Leaf Variant of the Persicaria hydropiper Sprout). Molecules 2018; 23:molecules23092319. [PMID: 30208642 PMCID: PMC6225476 DOI: 10.3390/molecules23092319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/10/2018] [Accepted: 09/10/2018] [Indexed: 01/14/2023] Open
Abstract
Glycation, the nonenzymatic reaction between proteins and excess blood sugar, is implicated in multiple disorders and occurs via the formation and accumulation of advanced glycation end products (AGEs). In our previous studies, we demonstrated that the red-leaf variant of the Persicaria hydropiper sprout (Japanese red water pepper, Benitade) is one of the potent plants that inhibit formation of AGEs. In this study, we aimed to identify antiglycative compounds in Benitade. Benitade extracts were prepared with hot water, then fractionated by using high-performance liquid chromatography (HPLC). The antiglycative efficacy of each fraction was evaluated by measuring the formation of fluorescent AGEs (Ex 370 nm/Em 440 nm). Two fractions, which contained peaks at 26.4 min and 31.8 min, showed potent antiglycative efficacy. When we hydrolyzed these peaks, they shifted to 32.5 and 41.4 min, which are the same retention times as cyanidin and quercetin, respectively. Based on thin-layer chromatography, both compounds contained galactose. Finally, ultrahigh-performance liquid chromatography/quadrupole-time of flight mass spectrometry (UHPLC-QqTOF-MS) analyses were performed to determine the structure of those compounds. Overall, we identified two glycosides, cyanidin 3-O-galactoside (idaein) and quercetin 3-O-galactoside (hyperin), as representative antiglycative compounds in Benitade.
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