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Cox A, Brown KC, Valentovic MA. The E-liquid flavoring vanillin alters energy and autophagic pathways in human proximal tubule (HK-2) epithelial cells. Chem Biol Interact 2024; 394:111003. [PMID: 38608998 DOI: 10.1016/j.cbi.2024.111003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/04/2024] [Accepted: 04/07/2024] [Indexed: 04/14/2024]
Abstract
The use of flavored e-liquids in electronic nicotine delivery systems (ENDS) has become very popular in recent years, but effects of these products have not been well characterized outside the lung. In this study, acute exposure to the popular flavoring vanillin (VAN) was performed on human proximal tubule (HK-2) kidney cells. Cells were exposed to 0-1000 μM VAN for 24 or 48 h and cellular stress responses were determined. Mitochondrial viability using MTT assay showed a significant decrease between the control and 1000 μM group by 48 h. Seahorse XFp analysis showed significantly increased basal respiration, ATP production, and proton leak after 24 h exposure. By 48 h exposure, these parameters remained significantly increased in addition to non-mitochondrial respiration and maximal respiration. Glycolytic activity after 24 h exposure showed significant decreases in glycolysis, glycolytic capacity, glycolytic reserve, and non-glycolytic acidification. The autophagy markers microtubule-associated protein 1A/1B light chain 3 (LC3B-I and LC3B-II) were probed via western blotting. The ratio of LC3B-II/LC3B-I was significantly increased after 24 h exposure to VAN, but by 48 h this ratio significantly decreased. The mitophagy marker PINK1 showed an increasing trend at 24 h, and its downstream target Parkin was significantly increased between the control and 750 μM group only. Finally, the oxidative stress marker 4-HNE was significantly decreased after 48 h exposure to VAN. These results indicate that acute exposure to VAN in the kidney HK-2 model can induce energy and autophagic changes within the cell.
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Affiliation(s)
- Ashley Cox
- Department of Biomedical Sciences, Toxicology Research Cluster, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, 25701, USA
| | - Kathleen C Brown
- Department of Biomedical Sciences, Toxicology Research Cluster, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, 25701, USA
| | - Monica A Valentovic
- Department of Biomedical Sciences, Toxicology Research Cluster, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, 25701, USA.
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Ojo OB, Olajide AO, Olagunju GB, Olowu C, Josiah SS, Amoo ZA, Olaleye MT, Akinmoladun AC. Polyphenol-rich Spondias mombin leaf extract abates cerebral ischemia/reperfusion-induced disturbed glutamate-ammonia metabolism and multiorgan toxicity in rats. Biomarkers 2023; 28:65-75. [PMID: 36341500 DOI: 10.1080/1354750x.2022.2145496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: This study investigated the protective properties of Spondias mombin leaf extract (SML), in cerebral ischemia/reperfusion (I/R) mediated toxicity in the brain, liver, and kidney of male Wistar rats. Materials and methods: Animals were subjected to 30 min of bilateral common carotid artery occlusion followed by 24 h of reperfusion (BCCAO/R). The animals were divided into sham, I/R, and I/R treated with SML (25, 50 and 100 mg/kg) or quercetin (20 mg/kg) groups. Animals were sacrificed after 24 h of reperfusion and markers of organ toxicity (urea creatinine, glutamine synthetase (GS), glutaminase (GA), aspartate aminotransferase (AST), alanine aminotransferase (ALT), acetylcholinesterase (AChE)) were measured in the brain regions (cortex, striatum, and hippocampus), liver, and kidney. Results and discussion: BCCAO/R significantly (p < 0.0001) inhibited the glutamate-glutamine cycle and mediated toxicity in the cerebral cortex, striatum, hippocampus, liver, and kidney of rats. Post-treatment with SML significantly (p < 0.0001) reversed glutamate-glutamine cycle inhibition and ameliorated cerebrohepatorenal toxicity in ischemic rats. Conclusion: Cerebral I/R significantly mediated cerebral, hepatic, and renal toxicity through the inhibition of glutamate-ammonia detoxification in rats, and SML protected against this post-ischemic glutamate-ammonia mediated multiorgan toxicity.
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Affiliation(s)
- Olubukola Benedicta Ojo
- Biochemical and Molecular Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Life Sciences, The Federal University of Technology, Akure, Nigeria
| | - Abigail Oladunni Olajide
- Biochemical and Molecular Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Life Sciences, The Federal University of Technology, Akure, Nigeria
| | - Grace Boluwatife Olagunju
- Biochemical and Molecular Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Life Sciences, The Federal University of Technology, Akure, Nigeria
| | - Comfort Olowu
- Biochemical and Molecular Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Life Sciences, The Federal University of Technology, Akure, Nigeria
| | - Sunday Solomon Josiah
- Biochemical and Molecular Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Life Sciences, The Federal University of Technology, Akure, Nigeria
| | - Zainab Abiola Amoo
- Biochemical and Molecular Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Life Sciences, The Federal University of Technology, Akure, Nigeria
| | - Mary Tolulope Olaleye
- Biochemical and Molecular Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Life Sciences, The Federal University of Technology, Akure, Nigeria
| | - Afolabi Clement Akinmoladun
- Biochemical and Molecular Pharmacology and Toxicology Laboratories, Department of Biochemistry, School of Life Sciences, The Federal University of Technology, Akure, Nigeria
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Mentese A, Demir S, Kazaz IO, Yulug E, Alemdar NT, Demir EA, Kartal MB, Durmus TB, Aliyazicioglu Y. Vanillic acid attenuates testicular ischemia/reperfusion injury in rats. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2022. [DOI: 10.1186/s43088-022-00336-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Abstract
Background
Testicular torsion is an important pediatric problem and ischemia/reperfusion injury (IRI) is involved in its etiopathogenesis. Vanillic acid (VA) is a phenolic acid has strong antioxidant properties. To our knowledge, the ability of VA to reduce testicular IRI has not been previously investigated. It was therefore aimed to evaluate whether VA had a beneficial effect against testicular IRI model in rats for the first time. Twenty-four rats were segregated into four groups: sham control, torsion/detorsion (T/D), T/D + VA (50 mg/kg and 100 mg/kg). The levels of testicular oxidative stress, inflammation, endoplasmic reticulum (ER) stress and apoptosis markers were determined using colorimetric methods. Hematoxylin–eosin staining method was used in the histopathological evaluation.
Results
Oxidative stress, inflammation, ER stress and apoptosis levels were significantly higher in testicular tissues of rats with only IRI model (p < 0.05). VA applications improved these injuries in a dose-dependent manner (p < 0.05). Moreover, it was found that the results of histological examinations supported the biochemical results to a statistically significant extent.
Conclusions
It was revealed that VA application can remove testicular IRI for the first time. This testicular protective efficacy of VA needs to be supported by more extensive preclinical studies.
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Yuldasheva N, Acikyildiz N, Akyuz M, Yabo-Dambagi L, Aydin T, Cakir A, Kazaz C. The Synthesis of Schiff bases and new secondary amine derivatives of p-vanillin and evaluation of their neuroprotective, antidiabetic, antidepressant and antioxidant potentials. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kamarauskaite J, Baniene R, Trumbeckas D, Strazdauskas A, Trumbeckaite S. Caffeic Acid Phenethyl Ester Protects Kidney Mitochondria against Ischemia/Reperfusion Induced Injury in an In Vivo Rat Model. Antioxidants (Basel) 2021; 10:747. [PMID: 34066715 PMCID: PMC8150279 DOI: 10.3390/antiox10050747] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 11/16/2022] Open
Abstract
To improve ischemia/reperfusion tolerance, a lot of attention has been focused on natural antioxidants. Caffeic acid phenethyl ester (CAPE), an active component of the resinous exudates of the buds and young leaves of Populus nigra L., Baccharis sarothroides A., etc., and of propolis, possesses unique biological activities such as anti-inflammatory, antioxidant, immunomodulating, and cardioprotective effects, among others. There is a lack of studies showing a link between the antioxidant potential of CAPE and the mechanism of protective action of CAPE at the level of mitochondria, which produces the main energy for the basic functions of the cell. In the kidney, ischemia/reperfusion injury contributes to rapid kidney dysfunction and high mortality rates, and the search for biologically active protective compounds remains very actual. Therefore, the aim of this study was to identify the antioxidant potential of CAPE and to investigate whether CAPE can protect rat kidney mitochondria from in vivo kidney ischemia/reperfusion induced injury. We found that CAPE (1) possesses antioxidant activity (the reducing properties of CAPE are more pronounced than its antiradical properties); CAPE effectively reduces cytochrome c; (2) protects glutamate/malate oxidation and Complex I activity; (3) preserves the mitochondrial outer membrane from damage and from the release of cytochrome c; (4) inhibits reactive oxygen species (ROS) generation in the Complex II (SDH) F site; (5) diminishes ischemia/reperfusion-induced LDH release and protects from necrotic cell death; and (6) has no protective effects on succinate oxidation and on Complex II +III activity, but partially protects Complex II (SDH) from ischemia/reperfusion-induced damage. In summary, our study shows that caffeic acid phenethyl ester protects kidney mitochondrial oxidative phosphorylation and decreases ROS generation at Complex II in an in vivo ischemia/reperfusion model, and shows potential as a therapeutic agent for the development of pharmaceutical preparations against oxidative stress-related diseases.
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Affiliation(s)
- Justina Kamarauskaite
- Department of Pharmacognosy, Medical Academy, Lithuanian University of Health Sciences, Sukileliu Av. 13, LT-50162 Kaunas, Lithuania;
- Laboratory of Biopharmaceutical Research, Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu Av. 13, LT-50162 Kaunas, Lithuania
| | - Rasa Baniene
- Neuroscience Institute, Lithuanian University of Health Sciences, Sukileliu Av. 13, LT-50162 Kaunas, Lithuania; (R.B.); (A.S.)
- Department of Biochemistry, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 4, LT-50161 Kaunas, Lithuania
| | - Darius Trumbeckas
- Department of Urology, Medical Academy, Lithuanian University of Health Sciences, Eivenių Str. 2, LT-50009 Kaunas, Lithuania;
| | - Arvydas Strazdauskas
- Neuroscience Institute, Lithuanian University of Health Sciences, Sukileliu Av. 13, LT-50162 Kaunas, Lithuania; (R.B.); (A.S.)
- Department of Biochemistry, Medical Academy, Lithuanian University of Health Sciences, Eiveniu Str. 4, LT-50161 Kaunas, Lithuania
| | - Sonata Trumbeckaite
- Department of Pharmacognosy, Medical Academy, Lithuanian University of Health Sciences, Sukileliu Av. 13, LT-50162 Kaunas, Lithuania;
- Neuroscience Institute, Lithuanian University of Health Sciences, Sukileliu Av. 13, LT-50162 Kaunas, Lithuania; (R.B.); (A.S.)
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