1
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Celik A, Bakar-Ates F. Alpha-lipoic acid induced apoptosis of PC3 prostate cancer cells through an alteration on mitochondrial membrane depolarization and MMP-9 mRNA expression. Med Oncol 2023; 40:244. [PMID: 37453954 DOI: 10.1007/s12032-023-02113-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/04/2023] [Indexed: 07/18/2023]
Abstract
Cancer has become an important cause of mortality and morbidity in the world. Over the past decades, biomedical research revealed insights into the molecular events and signaling pathways involved in carcinogenesis and cancer progression. Matrix metalloproteinases (MMPs) are a diverse family of enzymes that can degrade various components of the extracellular matrix and are considered as potential diagnostic and prognostic biomarkers for many cancer types and cancer stages. Recently, studies on the role of natural-origin active substances in the prevention of cancer development gained importance. Among them, the α-lipoic acid, which is commonly found in plants, displayed potent anti-proliferative effects on cancer cell lines. However, the effect of the compound on the induction of apoptosis and mRNA expression of MMPs in human prostate cancer cells remains unclear. The present study aimed to evaluate the anti-proliferative and apoptotic activity of α-lipoic acid in human PC3 prostate carcinoma cells considering different concentrations and exposure durations. The findings showed that, α-lipoic acid significantly decreased PC3 cell viability with an IC50 value of 1.71 mM at 48 h (p < 0.05). Additionally, the compound significantly increased Annexin-V binding in cells compared to control and induced a significant alteration in mitochondrial membrane potential and caspase levels (p < 0.05). Furhermore, the RT-PCR analyses have revealed that α-lipoic acid reduced MMP-9 mRNA expression in PC3 cells compared to the control (p < 0.05). In conclusion, this study highlights that α-lipoic acid induced apoptosis in human PC3 prostate cancer cells and inhibited the MMP-9 gene at the mRNA level, which is known to play a role in metastasis development.
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Affiliation(s)
- Aybuke Celik
- Department of Biochemistry, Faculty of Pharmacy, Ankara University, Anadolu, 06560, Ankara, Turkey
| | - Filiz Bakar-Ates
- Department of Biochemistry, Faculty of Pharmacy, Ankara University, Anadolu, 06560, Ankara, Turkey.
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2
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The effects of lipoic acid on respiratory diseases. Int Immunopharmacol 2023; 116. [PMCID: PMC9933494 DOI: 10.1016/j.intimp.2023.109713] [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: 02/19/2023]
Abstract
Respiratory diseases, including lung cancer, pulmonary fibrosis, asthma, and the recently emerging fatal coronavirus disease-19 (COVID-19), are the leading causes of illness and death worldwide. The increasing incidence and mortality rates have attracted much attention to the prevention and treatment of these conditions. Lipoic acid (LA), a naturally occurring organosulfur compound, is not only essential for mitochondrial aerobic metabolism but also shows therapeutic potential via certain pharmacological effects (e.g., antioxidative and anti-inflammatory effects). In recent years, accumulating evidence (animal experiments and in vitro studies) has suggested a role of LA in ameliorating many respiratory diseases (e.g., lung cancer, fibrosis, asthma, acute lung injury and smoking-induced lung injury). Therefore, this review will provide an overview of the present investigational evidence on the therapeutic effect of LA against respiratory diseases in vitro and in vivo. We also summarize the corresponding mechanisms of action to inspire further basic studies and clinical trials to confirm the health benefits of LA in the context of respiratory diseases.
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Key Words
- lipoic acid
- respiratory diseases
- antioxidation
- anti-inflammatory effects
- mechanism of action
- akt, protein kinase b;
- aif, apoptosis-inducing factor;
- ampk, adenosine monophosphate-activated protein kinase;
- α-sma, alpha-smooth muscle actin;
- bcl-2, b-cell lymphoma 2;
- cox-2, cyclooxygenase-2;
- dna, deoxyribonucleic acid;
- er, endoplasmic reticulum;
- erk, extracellular-regulated kinase;
- egfr, epidermal growth factor receptor;
- gr, glutathione reductase;
- gpx, glutathione peroxidase;
- grb2, growth factor receptor-bound protein 2;
- gsh, reduced glutathione;
- gssg, oxidized glutathione;
- hif, hypoxia-inducible factor;
- ho-1, heme oxygenase 1;
- keap-1, kelch-like ech-associated protein 1;
- ig-e, immunoglobulin e;
- il, interleukin
- oct-4, octamer-binding transcription factor 4;
- parp-1, poly (adp-ribose) polymerase-1;
- pdk1, phosphoinositide-dependent kinase-1;
- pdh, pyruvate dehydrogenase;
- pi3k, phosphoinositide 3-kinase;
- pge2, prostaglandin e2;
- pgc1α, peroxisome proliferator-activated receptor‑γ co-activator 1α;
- p70s6k, p70 ribosomal protein s6 kinase;
- fak, focal adhesion kinase;
- sod, superoxide dismutase;
- mapk, mitogen-activated protein kinase;
- mtor, mammalian target of rapamycin;
- nf-κb, nuclear factor-kappa b;
- no, nitric oxide;
- nox-4, nicotinamide adenine dinucleotide phosphate (nadph) oxidase-4;
- nqo1, nadph quinone oxidoreductase 1;
- tnf-α, tumor necrosis factor-α;
- tgf-β1, transforming growth factor beta-1;
- vegf, vascular endothelial growth factor;
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3
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Skorupa A, Michalkiewicz S, Jakubczyk M. Highly sensitive determination of α-lipoic acid in pharmaceuticals on a boron-doped diamond electrode. OPEN CHEM 2021. [DOI: 10.1515/chem-2021-0075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
A simple, highly sensitive, and selective differential pulse voltammetry method for the determination of α-lipoic acid (LA) in pharmaceutical preparations was developed and validated. The method is based on a quasi-reversible, diffusion-controlled, one-electron anodic oxidation of LA on a boron-doped diamond electrode (BDDE) in a McIlvaine (citrate-phosphate, C-PB) buffer solution at pH 3.0. For the first time, this environment was used for LA determination. A linear calibration curve was obtained within the concentration range 5.82 × 10−8 to 4.00 × 10−4 mol L−1 with a correlation coefficient of 0.9999. The limits of detection was estimated to be 1.94 × 10−8 mol L−1, which is one of the lowest values characteristic of voltammetric and chromatographic methods of LA determination. The proposed procedure is sensitive, accurate, and precise. Its utility was demonstrated in the determination of LA in pharmaceuticals without the need for its separation from the matrices. The results were comparable to those obtained by high performance liquid chromatography reference method and were in good accordance with the once declared by manufacturers. Thus, our method can be considered as an alternative to the dominant chromatographic determinations of α-LA in real samples.
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Affiliation(s)
- Agata Skorupa
- Institute of Chemistry, Jan Kochanowski University , 7G Uniwersytecka St. , 25-406 Kielce , Poland
| | - Slawomir Michalkiewicz
- Institute of Chemistry, Jan Kochanowski University , 7G Uniwersytecka St. , 25-406 Kielce , Poland
| | - Magdalena Jakubczyk
- Institute of Chemistry, Jan Kochanowski University , 7G Uniwersytecka St. , 25-406 Kielce , Poland
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4
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Brancaccio M, Mennitti C, Cesaro A, Fimiani F, Moscarella E, Caiazza M, Gragnano F, Ranieri A, D’Alicandro G, Tinto N, Mazzaccara C, Lombardo B, Pero R, Limongelli G, Frisso G, Calabrò P, Scudiero O. Dietary Thiols: A Potential Supporting Strategy against Oxidative Stress in Heart Failure and Muscular Damage during Sports Activity. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17249424. [PMID: 33339141 PMCID: PMC7765667 DOI: 10.3390/ijerph17249424] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 12/11/2022]
Abstract
Moderate exercise combined with proper nutrition are considered protective factors against cardiovascular disease and musculoskeletal disorders. However, physical activity is known not only to have positive effects. In fact, the achievement of a good performance requires a very high oxygen consumption, which leads to the formation of oxygen free radicals, responsible for premature cell aging and diseases such as heart failure and muscle injury. In this scenario, a primary role is played by antioxidants, in particular by natural antioxidants that can be taken through the diet. Natural antioxidants are molecules capable of counteracting oxygen free radicals without causing cellular cytotoxicity. In recent years, therefore, research has conducted numerous studies on the identification of natural micronutrients, in order to prevent or mitigate oxidative stress induced by physical activity by helping to support conventional drug therapies against heart failure and muscle damage. The aim of this review is to have an overview of how controlled physical activity and a diet rich in antioxidants can represent a “natural cure” to prevent imbalances caused by free oxygen radicals in diseases such as heart failure and muscle damage. In particular, we will focus on sulfur-containing compounds that have the ability to protect the body from oxidative stress. We will mainly focus on six natural antioxidants: glutathione, taurine, lipoic acid, sulforaphane, garlic and methylsulfonylmethane.
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Affiliation(s)
- Mariarita Brancaccio
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy;
| | - Cristina Mennitti
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy; (C.M.); (N.T.); (C.M.); (B.L.); (R.P.)
| | - Arturo Cesaro
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, 81100 Naples, Italy; (A.C.); (E.M.); (F.G.); (G.L.)
- Division of Clinical Cardiology, A.O.R.N. “Sant’Anna e San Sebastiano”, 81100 Caserta, Italy
| | - Fabio Fimiani
- Inherited and Rare Cardiovascular Diseases, Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Monaldi Hospital, 81100 Naples, Italy; (F.F.); (M.C.)
| | - Elisabetta Moscarella
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, 81100 Naples, Italy; (A.C.); (E.M.); (F.G.); (G.L.)
- Division of Clinical Cardiology, A.O.R.N. “Sant’Anna e San Sebastiano”, 81100 Caserta, Italy
| | - Martina Caiazza
- Inherited and Rare Cardiovascular Diseases, Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Monaldi Hospital, 81100 Naples, Italy; (F.F.); (M.C.)
| | - Felice Gragnano
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, 81100 Naples, Italy; (A.C.); (E.M.); (F.G.); (G.L.)
- Division of Clinical Cardiology, A.O.R.N. “Sant’Anna e San Sebastiano”, 81100 Caserta, Italy
| | | | - Giovanni D’Alicandro
- Department of Neuroscience and Rehabilitation, Center of Sports Medicine and Disability, AORN, Santobono-Pausillipon, 80122 Naples, Italy;
| | - Nadia Tinto
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy; (C.M.); (N.T.); (C.M.); (B.L.); (R.P.)
- Ceinge Biotecnologie Avanzate S. C. a R. L., 80131 Naples, Italy;
| | - Cristina Mazzaccara
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy; (C.M.); (N.T.); (C.M.); (B.L.); (R.P.)
| | - Barbara Lombardo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy; (C.M.); (N.T.); (C.M.); (B.L.); (R.P.)
- Ceinge Biotecnologie Avanzate S. C. a R. L., 80131 Naples, Italy;
| | - Raffaela Pero
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy; (C.M.); (N.T.); (C.M.); (B.L.); (R.P.)
- Task Force on Microbiome Studies, University of Naples Federico II, 80100 Naples, Italy
| | - Giuseppe Limongelli
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, 81100 Naples, Italy; (A.C.); (E.M.); (F.G.); (G.L.)
- Inherited and Rare Cardiovascular Diseases, Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, Monaldi Hospital, 81100 Naples, Italy; (F.F.); (M.C.)
| | - Giulia Frisso
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy; (C.M.); (N.T.); (C.M.); (B.L.); (R.P.)
- Ceinge Biotecnologie Avanzate S. C. a R. L., 80131 Naples, Italy;
- Correspondence: (G.F.); (P.C.); (O.S.); Tel.: +39-347-240-9595 (G.F.); +39-338-434-6963 (P.C.); +39-339-613-9908 (O.S.)
| | - Paolo Calabrò
- Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, 81100 Naples, Italy; (A.C.); (E.M.); (F.G.); (G.L.)
- Division of Clinical Cardiology, A.O.R.N. “Sant’Anna e San Sebastiano”, 81100 Caserta, Italy
- Correspondence: (G.F.); (P.C.); (O.S.); Tel.: +39-347-240-9595 (G.F.); +39-338-434-6963 (P.C.); +39-339-613-9908 (O.S.)
| | - Olga Scudiero
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy; (C.M.); (N.T.); (C.M.); (B.L.); (R.P.)
- Ceinge Biotecnologie Avanzate S. C. a R. L., 80131 Naples, Italy;
- Task Force on Microbiome Studies, University of Naples Federico II, 80100 Naples, Italy
- Correspondence: (G.F.); (P.C.); (O.S.); Tel.: +39-347-240-9595 (G.F.); +39-338-434-6963 (P.C.); +39-339-613-9908 (O.S.)
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5
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Toulbe N, Stroe MS, Daescu M, Cercel R, Mogos A, Dragoman D, Socol M, Mercioniu I, Baibarac M. Reduced Graphene Oxide Sheets as Inhibitors of the Photochemical Reactions of α-Lipoic Acid in the Presence of Ag and Au Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2238. [PMID: 33187318 PMCID: PMC7696841 DOI: 10.3390/nano10112238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/04/2020] [Accepted: 11/07/2020] [Indexed: 12/19/2022]
Abstract
The influence of Ag and Au nanoparticles and reduced graphene oxide (RGO) sheets on the photodegradation of α-lipoic acid (ALA) was determined by UV-VIS spectroscopy. The ALA photodegradation was explained by considering the affinity of thiol groups for the metallic nanoparticles synthesized in the presence of trisodium citrate. The presence of excipients did not induce further changes when ALA interacts with Ag and Au nanoparticles with sizes of 5 and 10 nm by exposure to UV light. Compared to the Raman spectrum of ALA powder, changes in Raman lines' position and relative intensities when ALA has interacted with films obtained from Au nanoparticles with sizes between 5 and 50 nm were significant. These changes were explained by considering the chemical mechanism of surface-enhanced Raman scattering (SERS) spectroscopy. The photodegradation of ALA that had interacted with metallic nanoparticles was inhibited in the presence of RGO sheets.
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Affiliation(s)
- N’ghaya Toulbe
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
- Interdisciplinary School of Doctoral Studies, University of Bucharest, Șoseaua Panduri 90, 050663 Bucharest, Romania
| | - Malvina S. Stroe
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
| | - Monica Daescu
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
| | - Radu Cercel
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
| | - Alin Mogos
- S.C. Agilrom Scientific S.R.L., 77190 Bucharest, Romania;
| | - Daniela Dragoman
- Faculty of Physics, University of Bucharest, Șoseaua Panduri 90, București 050663, Bucharest, P.O. Box MG-11, 077125 Bucharest-Magurele, Romania; or
| | - Marcela Socol
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
| | - Ionel Mercioniu
- National Institute of Materials Physics, Atomic Structures and Defects in Advanced Materials Laboratory, Atomistilor str. 405 A, 77125 Bucharest, Romania;
| | - Mihaela Baibarac
- National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructure Materials, Atomistilor str. 405 A, 77125 Bucharest, Romania; (N.T.); (M.S.S.); (M.D.); (R.C.); (M.S.)
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6
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Kamińska A, Chwatko G. Estimation of Lipoyllysine Content in Meat and Its Antioxidative Capacity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:10992-10999. [PMID: 32886880 PMCID: PMC7586328 DOI: 10.1021/acs.jafc.0c03778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 06/11/2023]
Abstract
During this research a simple, accurate, and environmentally friendly method to determine lipoyllysine and lipoic acid in meat was developed and validated. The presented approach was based on the hydrolysis of the proteins containing lipoic acid, reduction of disulfide bonds with tris(hydroxymethyl)phosphine, and precolumn derivatization of free thiol groups with 1-benzyl-2-chloropyridinium bromide long-term followed by HPLC separation with a diode-array detector. The method has been validated in accordance with the U.S. FDA guidelines and was linear in the range of 0.1-10 μmol/L in concentration with R2 values ≥0.9997 for both analytes. For lipoyllysine and lipoic acid, intra- and interday precision values were lower than 10%. The intraday accuracy values ranged from 91.0% to 99.4% for lipoyllysine and from 99.1% to 107.3% for lipoic acid, whereas the interday accuracy values for lipoyllysine and lipoic acid were 92.0-95.6% and 93.5-98.8%, respectively. Additionally, in this research the antioxidant activity of lipoyllysine and reduced lipoyllysine compound using spectrophotometric method with 1,1-diphenyl-2-picrylhydrazyl was examined for the first time. The data showed that dihydrolipoyllysine exhibits stronger antioxidant capacity than lipoyllysine based on a lower value of concentration required to achieve a 50% antioxidant effect in 1,1-diphenyl-2-picrylhydrazyl radical scavenging test.
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Affiliation(s)
- Adrianna Kamińska
- Faculty of Chemistry, Department
of Environmental Chemistry, University of
Lodz, 163 Pomorska Str., 90-236 Łódź, Poland
| | - Grażyna Chwatko
- Faculty of Chemistry, Department
of Environmental Chemistry, University of
Lodz, 163 Pomorska Str., 90-236 Łódź, Poland
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7
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Papageorgiou S, Varvaresou A, Panderi I, Giannakou M, Spiliopoulou C, Athanaselis S. Development and validation of a reversed-phase high-performance liquid chromatographic method for the quantitation and stability of α-lipoic acid in cosmetic creams. Int J Cosmet Sci 2020; 42:221-228. [PMID: 31985846 DOI: 10.1111/ics.12603] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 01/22/2020] [Indexed: 01/06/2023]
Abstract
OBJECTIVE To develop and validate a simple reversed-phase HPLC method for the quantitation and evaluation of stability of α-lipoic acid in cosmetics, according to International Conference on Harmonization (ICH) Guidelines. METHODS The chromatography was performed on a reversed-phase Luna C18, analytical column (150 × 4.6 mm id, 5 μm particle size) with a mobile phase of potassium dihydrogen phosphate (pΗ 4.5; 0.05 M) and acetonitrile (60:40, v/v) and a flow rate of 1.0 mL min-1 with UV detection at 340 nm. Accelerated and long-term stability studies of α-lipoic acid in cosmetic cream were conducted under various degradation conditions including acid, basis, oxidation, and thermal and photolytic degradation, according to European Medicines Agency Guidelines CPMP/ICH/2736/99. RESULTS The limit of detection (LOD) for the cosmetic cream was 0.9 μg mL-1 and the limit of quantitation (LOQ) was 2.8 μg mL-1 , while the retention time was 7.2 min. The method proved to be linear, precise and accurate. The stability results demonstrated the selectivity of the proposed method to the analysis of α-LA, and the degradation products were determined and evaluated in specific stress conditions in cosmetic creams. The applicability of the method was tested in two different developed cosmetic products (cream with 1.5 % w/w and emulsion with 1.0 % w/w of LA) and proved to be reliable. CONCLUSION A reversed-phase HPLC-UV method was developed and fully validated for the analysis of α-lipoic acid in cosmetics. It is the first reported application on the quantitation of lipoic acid in cosmetic creams, while at the same time evaluates the stability in forced degradation conditions, in new cosmetic formulations. It proved to be suitable for the reliable quality control of cosmetic products, with a run time of <8 min that allows for the analysis of large number of samples per day.
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Affiliation(s)
- S Papageorgiou
- Department of Biomedical Sciences, Faculty of Health and Welfare Sciences, Division of Aesthetics and Cosmetic Science, University of West Attica, Campus 1, Agiou Spyridonos, Egaleo, Athens, 12243, Greece
| | - A Varvaresou
- Department of Biomedical Sciences, Faculty of Health and Welfare Sciences, Division of Aesthetics and Cosmetic Science, University of West Attica, Campus 1, Agiou Spyridonos, Egaleo, Athens, 12243, Greece
| | - I Panderi
- Laboratory of Pharmaceutical Analysis, Division of Pharmaceutical Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimipolis - Zografou, Athens, 15771, Greece
| | - M Giannakou
- Department of Biology, National and Kapodistrian University of Athens, Panepistimipolis - Ilissia, Athens, 15701, Greece
| | - C Spiliopoulou
- Department of Forensic Medicine and Toxicology, School of Medicine, National and Kapodistrian University of Athens, Mikras Asias 75, Athens, 11527, Greece
| | - S Athanaselis
- Department of Forensic Medicine and Toxicology, School of Medicine, National and Kapodistrian University of Athens, Mikras Asias 75, Athens, 11527, Greece
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8
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Natural Sulfur-Containing Compounds: An Alternative Therapeutic Strategy against Liver Fibrosis. Cells 2019; 8:cells8111356. [PMID: 31671675 PMCID: PMC6929087 DOI: 10.3390/cells8111356] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/25/2019] [Accepted: 10/26/2019] [Indexed: 12/12/2022] Open
Abstract
Liver fibrosis is a pathophysiologic process involving the accumulation of extracellular matrix proteins as collagen deposition. Advanced liver fibrosis can evolve in cirrhosis, portal hypertension and often requires liver transplantation. At the cellular level, hepatic fibrosis involves the activation of hepatic stellate cells and their transdifferentiation into myofibroblasts. Numerous pro-fibrogenic mediators including the transforming growth factor-β1, the platelet-derived growth factor, endothelin-1, toll-like receptor 4, and reactive oxygen species are key players in this process. Knowledge of the cellular and molecular mechanisms underlying hepatic fibrosis development need to be extended to find novel therapeutic strategies. Antifibrotic therapies aim to inhibit the accumulation of fibrogenic cells and/or prevent the deposition of extracellular matrix proteins. Natural products from terrestrial and marine sources, including sulfur-containing compounds, exhibit promising activities for the treatment of fibrotic pathology. Although many therapeutic interventions are effective in experimental models of liver fibrosis, their efficacy and safety in humans are largely unknown. This review aims to provide a reference collection on experimentally tested natural anti-fibrotic compounds, with particular attention on sulfur-containing molecules. Their chemical structure, sources, mode of action, molecular targets, and pharmacological activity in the treatment of liver disease will be discussed.
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9
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Turkowicz M, Jastrzebska I, Hryniewicka M, Kotowska U, Gudalewska D, Karpińska J. Investigation of lipoic acid - 4-methoxybenzyl alcohol reaction and evaluation of its analytical usefulness. Food Chem 2019; 309:125750. [PMID: 31704079 DOI: 10.1016/j.foodchem.2019.125750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 09/10/2019] [Accepted: 10/19/2019] [Indexed: 12/23/2022]
Abstract
The presented work is aimed to synthesize a new UV active derivative of α-lipoic acid (ALA) by its esterification with 4-methoxybenzyl alcohol (4-MBA, anise alcohol). The formation of ester was confirmed by 1HNMR, FTIR and UV spectroscopy. The analytical usefulness of the obtained compound for quantification of ALA in food items was examined using HPLC-UV and GC-MS systems. It was found that it is possible to assay ALA in the ester form in the concentration ranges: 5·10-6-1·10-4 mol L-1 by HPLC-UV and 1∙10-7-5∙10-5 mol L-1 by GC-MS techniques. The GC-MS procedure was applied for the determination of ALA in the food samples.
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Affiliation(s)
- Monika Turkowicz
- Institute of Chemistry, University of Białystok, ul. Ciołkowskiego 1K, 15-245 Białystok, Poland.
| | - Izabella Jastrzebska
- Institute of Chemistry, University of Białystok, ul. Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Marta Hryniewicka
- Institute of Chemistry, University of Białystok, ul. Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Urszula Kotowska
- Institute of Chemistry, University of Białystok, ul. Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Diana Gudalewska
- Institute of Chemistry, University of Białystok, ul. Ciołkowskiego 1K, 15-245 Białystok, Poland
| | - Joanna Karpińska
- Institute of Chemistry, University of Białystok, ul. Ciołkowskiego 1K, 15-245 Białystok, Poland
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10
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Kyung S, Lim JW, Kim H. α-Lipoic Acid Inhibits IL-8 Expression by Activating Nrf2 Signaling in Helicobacter pylori-infected Gastric Epithelial Cells. Nutrients 2019; 11:nu11102524. [PMID: 31635029 PMCID: PMC6835494 DOI: 10.3390/nu11102524] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori (H. pylori) causes gastritis and gastric cancers. Oxidative stress is involved in the pathological mechanism of H. pylori-induced gastritis and gastric cancer induction. Therefore, reducing oxidative stress may be beneficial for preventing the development of H. pylori-associated gastric diseases. Nuclear factor erythroid-2-related factor 2 (Nrf2) is a crucial regulator for the expression of antioxidant enzyme heme oxygenase-1 (HO-1), which protects cells from oxidative injury. α-Lipoic acid (α-LA), a naturally occurring dithiol, shows antioxidant and anti-inflammatory effects in various cells. In the present study, we examined the mechanism by which α-LA activates the Nrf2/HO-1 pathway, suppresses the production of pro-inflammatory cytokine interleukine-8 (IL-8), and reduces reactive oxygen species (ROS) in H. pylori-infected AGS cells. α-LA increased the level of phosphorylated and nuclear-translocated Nrf2 by decreasing the amount of Nrf2 sequestered in the cytoplasm by complex formation with Kelch-like ECH1-associated protein 1 (KEAP 1). By using exogenous inhibitors targeting Nrf2 and HO-1, we showed that up-regulation of activated Nrf2 and of HO-1 results in the α-LA-induced suppression of interleukin 8 (IL-8) and ROS. Consumption of α-LA-rich foods may prevent the development of H. pylori-associated gastric diseases by decreasing ROS-mediated IL-8 expression in gastric epithelial cells.
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Affiliation(s)
- Seoyeon Kyung
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, College of Human Ecology, Yonsei University, Seoul 03722, Korea.
| | - Joo Weon Lim
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, College of Human Ecology, Yonsei University, Seoul 03722, Korea.
| | - Hyeyoung Kim
- Department of Food and Nutrition, Brain Korea 21 PLUS Project, College of Human Ecology, Yonsei University, Seoul 03722, Korea.
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Viana C, Ribeiro SM, Moreira AP, Müller LS, Motta MJ, Monserrat JM, de Carvalho LM, Bohrer D. Quantification of Alpha Lipoic Acid in Pharmaceutical Products by HPLC with Pulsed Amperometric Detection at a Gold Electrode. CURR ANAL CHEM 2019. [DOI: 10.2174/1573411014666180418155615] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Alpha-lipoic acid (ALA) has become a common ingredient in food supplements
and multivitamin formulas. ALA is widely used as therapy for preventing diabetic polyneuropathies,
scavenges free radicals, and restores intracellular glutathione levels. This study aimed to develop
a simple and fast analytical method to determine ALA content in dietary supplements using highperformance
liquid chromatography with pulsed amperometric detection (HPLC PAD).
Methods:
ALA was analyzed by HPLC in a mobile phase composed of 25 mmol/L potassium phosphate
in 50% (v/v) acetonitrile (pH 4.0) and PAD at a gold electrode (vs. solid-phase hydrogen reference
electrode). The PAD cycle was performed by applying a detection potential (E1) of +0.7 V for 0.4 s, an
oxidation potential (E2) of +1.0V for 0.4 s and a reduction potential (E3) of -0.2 V for 1.2 s.
Results:
The runtime method was shown a rapid procedure for the analysis of α-lipoic acid. The sampling
rate of 8 injections per hour was attained and measurements of the reproducibility of successive
injections (20 µL) showed an RSD of 1.89% for 16 successive injections. The method presented low
quantification limit of 0.21 mg/L. The industrialized ALA-based supplements ranged from to 97.8 to
104.1%, while manipulated capsules ranged from 69.2 to 95.4%.
Conclusion:
Electrochemical detector has been presented as an effective alternative for ALA determination,
which has weakly UV-absorbing. This detection has the benefits of sensitivity, simplicity and
low costs. The developed HPLC-DAD method proposes to be analytical tool applicable to quality control
of ALA supplements.
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Affiliation(s)
- Carine Viana
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria-RS, Brazil
| | - Sandra M. Ribeiro
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria-RS, Brazil
| | - Ana P.L. Moreira
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria-RS, Brazil
| | - Larissa S. Müller
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria-RS, Brazil
| | | | - José M. Monserrat
- Departamento de Ciencias Fisiologicas, Fundacao Universidade Federal do Rio Grande (FURG), Av. Italia km 8, Campus Carreiros, 96.201-900, Rio Grande, RS, Brazil
| | - Leandro M. de Carvalho
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria-RS, Brazil
| | - Denise Bohrer
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria-RS, Brazil
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12
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Formoso G, Baldassarre MP, Ginestra F, Carlucci MA, Bucci I, Consoli A. Inositol and antioxidant supplementation: Safety and efficacy in pregnancy. Diabetes Metab Res Rev 2019; 35:e3154. [PMID: 30889626 PMCID: PMC6617769 DOI: 10.1002/dmrr.3154] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 02/20/2019] [Accepted: 03/10/2019] [Indexed: 12/15/2022]
Abstract
Pregnancies complicated by diabetes have largely increased in number over the last 50 years. Pregnancy is characterized by a physiologic increase in insulin resistance, which, associated with increased oxidative stress and inflammations, could induce alterations of glucose metabolism and diabetes. If not optimally controlled, these conditions have a negative impact on maternal and foetal outcomes. To date, one can resort only to diet and lifestyle to treat obesity and insulin resistance during pregnancy, and insulin remains the only therapeutic option to manage diabetes during pregnancy. However, in the last years, in a variety of experimental models, inositol and antioxidants supplementation have shown insulin-sensitizing, anti-inflammatory, and antioxidant properties, which could be mediated by some possible complementary mechanism of action. Different isomers and multiple combinations of these compounds are presently available: Aim of the present review article is to examine the existing evidence in order to clarify and/or define the effects of different inositol- and antioxidant-based supplements during pregnancy complicated by insulin resistance and/or by diabetes. This could help the clinician's evaluation and choice of the appropriate supplementation regimen.
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Affiliation(s)
- Gloria Formoso
- Department of Medicine and Aging Sciences and Centro Scienze dell'Invecchiamento‐Medicina Traslazionale (CeSI‐MeT)University G. D'AnnunzioChietiItaly
| | - Maria P.A. Baldassarre
- Department of Medicine and Aging Sciences and Centro Scienze dell'Invecchiamento‐Medicina Traslazionale (CeSI‐MeT)University G. D'AnnunzioChietiItaly
| | - Federica Ginestra
- Department of Medicine and Aging Sciences and Centro Scienze dell'Invecchiamento‐Medicina Traslazionale (CeSI‐MeT)University G. D'AnnunzioChietiItaly
| | - Maria Assunta Carlucci
- Department of Medicine and Aging Sciences and Centro Scienze dell'Invecchiamento‐Medicina Traslazionale (CeSI‐MeT)University G. D'AnnunzioChietiItaly
| | - Ines Bucci
- Department of Medicine and Aging Sciences and Centro Scienze dell'Invecchiamento‐Medicina Traslazionale (CeSI‐MeT)University G. D'AnnunzioChietiItaly
| | - Agostino Consoli
- Department of Medicine and Aging Sciences and Centro Scienze dell'Invecchiamento‐Medicina Traslazionale (CeSI‐MeT)University G. D'AnnunzioChietiItaly
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13
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Insights on alpha lipoic and dihydrolipoic acids as promising scavengers of oxidative stress and possible chelators in mercury toxicology. J Inorg Biochem 2019; 195:111-119. [DOI: 10.1016/j.jinorgbio.2019.03.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 12/11/2022]
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14
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Sontag G, Pinto MI, Noronha JP, Burrows HD. Analysis of Food by High Performance Liquid Chromatography Coupled with Coulometric Detection and Related Techniques: A Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4113-4144. [PMID: 30900882 DOI: 10.1021/acs.jafc.9b00003] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The development of single coulometric cells in combination with high performance liquid chromatography to dual cells and to the coulometric electrode array detector is described. An overview is given about the application of these methods in food chemistry. Easily oxidizable compounds, such as phenolic substances, pesticides, or vitamins, can be determined, as well as substances with high oxidation potentials or electroinactive compounds. Substances exhibiting poor electrochemical activity can be transformed to electroactive compounds by precolumn derivatization, postcolumn photochemical reactions, postcolumn enzyme reactors, or by using the oxidative/reductive mode for coulometric electrode array detection. Furthermore, it is shown that the interesting combination of high performance liquid chromatography with electrochemistry and mass spectrometry has opened further possibilities with respect to interpretation of redox reactions, drug metabolism studies, metabolomics, and electrochemical derivatization.
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Affiliation(s)
- Gerhard Sontag
- Institute for Analytical Chemistry , University of Vienna , Währingerstrasse 38 , A-1090 Vienna , Austria
| | - Maria I Pinto
- REQUIMTE/LAQV, Chemistry Department, FCT , Universidade Nova de Lisboa , 2829-516 Caparica , Portugal
| | - João P Noronha
- REQUIMTE/LAQV, Chemistry Department, FCT , Universidade Nova de Lisboa , 2829-516 Caparica , Portugal
| | - Hugh D Burrows
- Centro de Quimica, Chemistry Department , University of Coimbra , 3004-535 Coimbra , Portugal
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15
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Ziyatdinova G, Antonova T, Vorobev V, Osin Y, Budnikov H. Selective voltammetric determination of α-lipoic acid on the electrode modified with SnO2 nanoparticles and cetyltriphenylphosphonium bromide. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-018-2341-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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16
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Use of Nutraceuticals in Angiogenesis-Dependent Disorders. Molecules 2018; 23:molecules23102676. [PMID: 30340320 PMCID: PMC6222874 DOI: 10.3390/molecules23102676] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/11/2018] [Accepted: 10/16/2018] [Indexed: 12/13/2022] Open
Abstract
The term of angiogenesis refers to the growth of new vessels from pre-existing capillaries. The phenomenon is necessary for physiological growth, repair and functioning of our organs. When occurring in a not regulated manner, it concurs to pathological conditions as tumors, eye diseases, chronic degenerative disorders. On the contrary insufficient neovascularization or endothelial disfunction accompanies ischemic and metabolic disorders. In both the cases an inflammatory and oxidative condition exists in supporting angiogenesis deregulation and endothelial dysfunction. The use of nutraceuticals with antioxidant and anti-inflammatory activities can be a therapeutic option to maintain an adequate vascularization and endothelial cell proper functioning or to blunt aberrant angiogenesis. A revision of the updated literature reports on nutraceuticals to guide endothelial cell wellness and to restore physiological tissue vascularization is the objective of this paper. The critical aspects as well as lacking data for human use will be explored from a pharmacological perspective.
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17
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Choudhary S, Singh PK, Verma H, Singh H, Silakari O. Success stories of natural product-based hybrid molecules for multi-factorial diseases. Eur J Med Chem 2018; 151:62-97. [PMID: 29605809 DOI: 10.1016/j.ejmech.2018.03.057] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/19/2018] [Accepted: 03/20/2018] [Indexed: 12/18/2022]
Abstract
Complex diseases comprises of highly complicated etiology resulting in limited applicability of conventional targeted therapies. Consequently, conventional medicinal compounds suffer major failure when used for such disease conditions. Additionally, development of multidrug resistance (MDR), adverse drug reactions and clinical specificity of single targeted drug therapy has increased thrust for novel drug therapy. In this rapidly evolving era, natural product-based discovery of hybrid molecules or multi-targeted drug therapies have shown promising results and are trending now a days. Historically, nature has blessed human with different sources viz. plant, animal, microbial, marine and ethnopharmaceutical sources which has given a wide variety of medicinally active compounds. These compounds from natural origin are always choice of interest of medicinal chemists because of their minimum side effects. Hybrid molecules synthesized by fusing or conjugating different active molecules obtained from these sources are reported to synergistically block different pathways which contribute in the pathogenesis of complex diseases. This review strives to encompass all natural product-derived hybrid molecules which act as multi-targeting agents striking various targets involved in different pathways of complex diseased conditions reported in literature.
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Affiliation(s)
- Shalki Choudhary
- Molecular Modelling Lab (MML), Department of Pharmaceutical Sciences and Drug research, Punjabi University, Patiala, Punjab, 147002, India
| | - Pankaj Kumar Singh
- Molecular Modelling Lab (MML), Department of Pharmaceutical Sciences and Drug research, Punjabi University, Patiala, Punjab, 147002, India
| | - Himanshu Verma
- Molecular Modelling Lab (MML), Department of Pharmaceutical Sciences and Drug research, Punjabi University, Patiala, Punjab, 147002, India
| | | | - Om Silakari
- Molecular Modelling Lab (MML), Department of Pharmaceutical Sciences and Drug research, Punjabi University, Patiala, Punjab, 147002, India.
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18
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Sharma A, Flora SJS. Nutritional management can assist a significant role in alleviation of arsenicosis. J Trace Elem Med Biol 2018; 45:11-20. [PMID: 29173466 DOI: 10.1016/j.jtemb.2017.09.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/01/2017] [Accepted: 09/13/2017] [Indexed: 01/24/2023]
Abstract
Consumption of arsenic contaminated water causes serious skin disease and cancer in a significant number of exposed people. Chelating agents, consider an expensive therapy, are employed in the treatment of arsenic intoxication. There are reports which suggest that the poorest suffer the most from arsenicosis. This may be due to improper diet intake, consist of low protein and micronutrients which increase the vulnerability to arsenic-related disorders. Several human studies demonstrated the associations between malnourishment and the development of arsenic-caused skin lesions, skin cancer and cardiovascular effects. Thus, there is an urgent need of implementation of mitigation strategies for improving the health of exposed populations. Nutrition enhances the detoxification process so food rich in vitamins, protein, antioxidants help in its detoxification process. Methylation is the detoxification process which takes place via S-adenosylmethionine (SAM). It is a methyl group donor and it derived its methyl group from diet. Nutritional intervention thus may appear as a practical and inexpensive approach. Nutrition provides protection from toxic effect of arsenic by two ways (i) methylation of As (ii) antioxidants which provides protection against free radical species. The governments and NGOs may run awareness programmes in arsenic affected area regarding prevention and alternate therapy which can decrease the susceptibility of the exposed population. They could also help in distributing cheaper, high protein diets particularly to the masses who cannot afford such foods. Thus, to prevent arsenicosis alternate therapy and proper nutrition could be the important strategy for alleviating its toxic effects. This mini review provides an insight on the importance of nutrition in preventing adverse effect cause by arsenic to suffer population.
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Affiliation(s)
- Abha Sharma
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Raebareli, India
| | - S J S Flora
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Raebareli, India.
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19
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Odachowska A, Godlewska M, Turkowicz M, Mateuszczyk P, Iwanowicz M, Karpinska J. Studies on reaction of reduced lipoic acid with Mukaiyama reagent and its application for pharmaceutical and food analysis. J LIQ CHROMATOGR R T 2017. [DOI: 10.1080/10826076.2017.1293548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | - Monika Turkowicz
- Białystok Provincial Sanitary and Epidemiological Station, Department of Food Products, Food-Contact Articles and Nutrition Research, Bialystok, Poland
| | | | | | - Joanna Karpinska
- Faculty of Chemistry, University of Bialystok, Bialystok, Poland
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20
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Abstract
α-Lipoic acid (LA) is a unique antioxidant that is not only effective in affording protection against oxidative stress but also plays an essential role in metabolic processes of all living organisms. Therefore, the determination of LA and its metabolites content is crucial for understanding their physiological and pathophysiological functions. Most of the recently developed methods for the detection and determination of LA and its metabolites in various biological samples have focused on sample preparation procedures involving but not limited to sampling, extraction and storage. The main goal of this review is to summarize and critically evaluate the current state of the art of analytical procedures applied to the determination of LA and related compounds in biological samples.
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21
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Santos Pereira LND, da Silva IS, Araújo TP, Tanaka AA, Angnes L. Fast quantification of α-lipoic acid in biological samples and dietary supplements using batch injection analysis with amperometric detection. Talanta 2016; 154:249-54. [PMID: 27154671 DOI: 10.1016/j.talanta.2016.03.046] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/11/2016] [Accepted: 03/12/2016] [Indexed: 11/20/2022]
Abstract
Batch injection analysis (BIA) with amperometric detection, using a pyrolytic graphite electrode modified with cobalt phthalocyanine (PG/CoPc), was employed for determination of α-lipoic acid (ALA) in pharmaceutical product and in synthetic urine samples. The proposed BIA method is based on the application of a potential of +0.9V vs. Ag/AgCl, KCl sat, enabling quantification of ALA over a concentration range from 1.3×10(-6) to 1.0×10(-4)molL(-1), with a detection limit of 1.5×10(-8)molL(-1). A sampling rate of 180 injections per hour was attained and measurements of the reproducibility of successive injections (100µmolL(-1) ALA on the same electrode) showed a RSD of 2.11% for 40 successive injections. The new sensor was utilised for ALA quantification in a dietary pharmaceutical supplement and in synthetic urine and the results obtained for both samples were compared with parallel analysis using high performance liquid chromatography (HPLC), the method recommended by the United States Pharmacopeia. The results obtained were similar (at a 95% confidence level) and in the case of the synthetic urine sample (prepared with a known amount of ALA) the recovery was situated between 98.0% and 102.6%.
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Affiliation(s)
- Laise Nayra Dos Santos Pereira
- Departamento de Química, Universidade Federal do Maranhão, Avenida dos Portugueses, 1966, CEP 65080-805, São Luís, MA, Brazil
| | - Iranaldo Santos da Silva
- Departamento de Química, Universidade Federal do Maranhão, Avenida dos Portugueses, 1966, CEP 65080-805, São Luís, MA, Brazil
| | - Thaylan Pinheiro Araújo
- Departamento de Química, Universidade Federal do Maranhão, Avenida dos Portugueses, 1966, CEP 65080-805, São Luís, MA, Brazil
| | - Auro Atsushi Tanaka
- Departamento de Química, Universidade Federal do Maranhão, Avenida dos Portugueses, 1966, CEP 65080-805, São Luís, MA, Brazil; Instituto Nacional de Ciência e Tecnologia de Bioanalítica, Caixa Postal 6154, CEP 13083-970 Campinas, SP, Brazil
| | - Lúcio Angnes
- Instituto de Química, Universidade de São Paulo, Avenida Prof. Lineu Prestes, 748, CEP 05599-970 São Paulo, SP, Brazil.
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22
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Milašinović N, Čalija B, Vidović B, Crevar Sakač M, Vujić Z, Knežević-Jugović Z. Sustained release of α-lipoic acid from chitosan microbeads synthetized by inverse emulsion method. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2015.10.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Biresaw G, Compton D, Evans K, Bantchev GB. Lipoate Ester Multifunctional Lubricant Additives. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b03697] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Girma Biresaw
- Bio-Oils Research Unit and ‡Renewable Product Technology Research
Unit, National Center for Agricultural Utilization Research,
Agricultural
Research Service, United States Department of Agriculture, 1815 N. University Street, Peoria, Illinois 61604, United States
| | - David Compton
- Bio-Oils Research Unit and ‡Renewable Product Technology Research
Unit, National Center for Agricultural Utilization Research,
Agricultural
Research Service, United States Department of Agriculture, 1815 N. University Street, Peoria, Illinois 61604, United States
| | - Kervin Evans
- Bio-Oils Research Unit and ‡Renewable Product Technology Research
Unit, National Center for Agricultural Utilization Research,
Agricultural
Research Service, United States Department of Agriculture, 1815 N. University Street, Peoria, Illinois 61604, United States
| | - Grigor B. Bantchev
- Bio-Oils Research Unit and ‡Renewable Product Technology Research
Unit, National Center for Agricultural Utilization Research,
Agricultural
Research Service, United States Department of Agriculture, 1815 N. University Street, Peoria, Illinois 61604, United States
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Godlewska M, Odachowska A, Turkowicz M, Karpinska J. Analysis of Reaction between α-Lipoic Acid and 2-Chloro-1-methylquinolinium Tetrafluoroborate Used as a Precolumn Derivatization Technique in Chromatographic Determination of α-Lipoic Acid. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2015; 2015:535387. [PMID: 26504616 PMCID: PMC4609507 DOI: 10.1155/2015/535387] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 01/05/2015] [Accepted: 01/20/2015] [Indexed: 06/05/2023]
Abstract
The present study offers results of analysis concerning the course of reaction between reduced α-lipoic acid (LA) and 2-chloro-1-methylquinolinium tetrafluoroborate (CMQT). In water environments, the reaction between CMQT and hydrophilic thiols proceeds very rapidly and the resultant products are stable. For the described analysis, optimum reaction conditions, such as concentration of the reducing agent, environment pH, and concentration of the reagent were carefully selected. The spectrophotometric assay was carried out measuring absorbance at λ = 348 nm (i.e., the spectral band of the obtained reaction product). Furthermore, the calibration curve of lipoic acid was registered. It was concluded that the Lambert-Beer law was observed within the range 1-10 μmol L(-1). Later, the reaction between LA and CMQT was used as precolumn derivatization in a chromatographic determination of the lipoic acid in the range 2.5-50 μmol L(-1). Practical applicability of the designed methods was evaluated by determining lipoic acid in Revitanerv pharmaceutical preparation which contains 300 mg LA in a single capsule. The error of the determination did not exceed 0.5% in relation to the declared value.
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Affiliation(s)
- Magdalena Godlewska
- Faculty of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
| | - Angelika Odachowska
- Faculty of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
| | - Monika Turkowicz
- Białystok Provincial Sanitary and Epidemiological Station, Department of Food Products, Food-Contact Articles and Nutrition Research, Legionowa 8, 15-099 Bialystok, Poland
| | - Joanna Karpinska
- Faculty of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
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25
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Enamorado AD, Martins AC, Flores JA, Tesser MB, Caldas SS, Primel EG, Monserrat JM. Biochemical responses over time in common carp Cyprinus carpio (Teleostei, Cyprinidae) during fed supplementation with α-lipoic acid. Comp Biochem Physiol A Mol Integr Physiol 2015; 188:9-16. [DOI: 10.1016/j.cbpa.2015.05.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 04/22/2015] [Accepted: 05/25/2015] [Indexed: 10/23/2022]
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26
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Puri BK, Hakkarainen-Smith JS, Derham A, Monro JA. Co-administration of α-lipoic acid and glutathione is associated with no significant changes in serum bilirubin, alkaline phosphatase or γ-glutamyltranspeptidase levels during the treatment of neuroborreliosis with intravenous ceftriaxone. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2015; 12:227-230. [PMID: 25968441 DOI: 10.1515/jcim-2014-0058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 04/23/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND While pharmacotherapy with intravenous ceftriaxone, a third-generation cephalosporin, is a potential treatment of Lyme neuroborreliosis, there is concern that it can cause the formation of biliary sludge, leading to hepatobiliary complications such as biliary colic, jaundice and cholelithiasis, which are reflected in changes in serum levels of bilirubin and markers of cholestatic liver injury (alkaline phosphatase and γ-glutamyltranspeptidase). It has been suggested that the naturally occurring substances α-lipoic acid and glutathione may be helpful in preventing hepatic disease. α-Lipoic acid exhibits antioxidant, anti-inflammatory and anti-apoptotic activities in the liver, while glutathione serves as a sulfhydryl buffer. The aim of this study was to determine whether co-administration of α-lipoic acid and glutathione is associated with significant changes in serum levels of bilirubin, alkaline phosphatase and γ-glutamyltranspeptidase during the treatment of Lyme neuroborreliosis with long-term intravenous ceftriaxone. METHODS Serum levels of bilirubin, alkaline phosphatase and γ-glutamyltranspeptidase were measured in 42 serologically positive Lyme neuroborreliosis patients before and after long-term treatment with intravenous ceftriaxone (2-4 g daily) with co-administration of oral/intravenous α-lipoic acid (600 mg daily) and glutathione (100 mg orally or 0.6-2.4 g intravenously daily). RESULTS None of the patients developed biliary colic and there were no significant changes in serum bilirubin, alkaline phosphatase or γ-glutamyltranspeptidase levels over the course of the intravenous ceftriaxone treatment (mean length 75.0 days). CONCLUSIONS Co-administration of α-lipoic acid and glutathione is associated with no significant changes in serum bilirubin, alkaline phosphatase or γ-glutamyltranspeptidase levels during the treatment of neuroborreliosis with intravenous ceftriaxone.
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Simultaneous determination of the endogenous free α-lipoic acid and dihydrolipoic acid in human plasma and erythrocytes by RP-HPLC coupled with electrochemical detector. Methods Mol Biol 2015. [PMID: 25323519 DOI: 10.1007/978-1-4939-1441-8_25] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
A highly sensitive, precise, and accurate reversed-phase high performance liquid-chromatography/electrochemical detection method for simultaneous determination of the endogenous free α-lipoic acid and dihydrolipoic acid in biological matrices is presented. The two analytes are extracted from samples with acetonitrile-10% m-phosphoric acid solution(aqueous) (50:50 v/v). To determine the total lipoic acid, samples are treated with tris(2-carboxyethyl)phosphine solution in phosphate buffer: pH 2.5 with 85% o-phosphoric acid prior to deproteination. The two analytes are separated on a C18 (150 × 4.6 mm, 5 μm) analytical column using acetonitrile-50 mM phosphate buffer: pH 2.5 with 85% o-phosphoric acid (35:65 v/v) as the isocratic mobile phase pumped at a flow rate of 2.0 ml/min at the column oven temperature of 35 °C. The column eluents are monitored at a potential of 0.9 V. These analytes are efficiently resolved in <7 min.
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Tsai CJ, Lin YC, Chen YL, Feng CH. Chemical derivatization combined with capillary LC or MALDI-TOF MS for trace determination of lipoic acid in cosmetics and integrated protein expression profiling in human keratinocytes. Talanta 2014; 130:347-55. [DOI: 10.1016/j.talanta.2014.07.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 07/03/2014] [Accepted: 07/07/2014] [Indexed: 01/24/2023]
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Wijayanti HB, Bansal N, Sharma R, Deeth HC. Effect of sulphydryl reagents on the heat stability of whey protein isolate. Food Chem 2014; 163:129-35. [DOI: 10.1016/j.foodchem.2014.04.094] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 03/19/2014] [Accepted: 04/24/2014] [Indexed: 10/25/2022]
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Nikolić RS, Krstić NS, Nikolić GM, Kocić GM, Cakić MD, Anđelković DH. Molecular mechanisms of beneficial effects of lipoic acid in copper intoxicated rats assessment by FTIR and ESI-MS. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.04.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Adeghate E, Fehér E, Kalász H. Evaluating the Phase II drugs currently under investigation for diabetic neuropathy. Expert Opin Investig Drugs 2014; 24:1-15. [PMID: 25171371 DOI: 10.1517/13543784.2014.954033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Introduction: The worldwide number of patients suffering from diabetes mellitus (DM) is projected to approach 552 million by the year 2030. As diabetic neuropathy (DN) is present in 8% of new diabetic patients at the time of diagnosis and occurs in ∼ 50% of all patients with established DM, the number of patients who will develop painful DN will also increase. The suboptimal efficacies of currently approved drugs have prompted investigators to develop new therapeutic agents for the management of painful DN. Areas covered: In this review, the authors present and elucidate the current status of drugs under investigation for the treatment of painful DN. A short synopsis of currently approved drugs is also given. Literature information and data analysis were retrieved from PubMed, the American Diabetes and Neurological Associations Websites and ClinicalTrials.gov. The keywords used in the search included: DM, DN, painful diabetic neuropathy. Expert opinion: In addition to treating the pain associated with DN, the actual causes of the disease should also be targeted for improved management. It is hoped that drugs which improve vascular blood flow, induce neural regeneration, reduce hyperglycemia, oxidative stress and inflammation can be more effective for the overall treatment of painful DN.
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Affiliation(s)
- Ernest Adeghate
- United Arab Emirates University, College of Medicine and Health Sciences, Department of Anatomy , P.O Box 17666, Al Ain , UAE +971 3 7672033 ;
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Effect of dietary α-lipoic acid on the mRNA expression of genes involved in drug metabolism and antioxidation system in rat liver. Br J Nutr 2014; 112:295-308. [DOI: 10.1017/s0007114514000841] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In the present study, the mRNA levels of hepatic proteins involved in the drug metabolism of rats fed α-lipoic acid were evaluated by DNA microarray and real-time PCR analyses. Experimental diets containing 0, 0·1, 0·25 and 0·5 % (w/w) α-lipoic acid were fed to four groups of rats consisting of seven animals each for 21 d. DNA microarray analysis revealed that the diet containing 0·5 % α-lipoic acid significantly (P< 0·05) increased the mRNA levels of various phase I drug-metabolising enzymes up to 15-fold and phase II enzymes up to 52-fold in an isoenzyme-specific manner. α-Lipoic acid also up-regulated the mRNA levels of some members of the ATP-binding cassette transporter superfamily, presumed to be involved in the exportation of xenobiotics, up to 6·6-fold. In addition, we observed that α-lipoic acid increased the mRNA levels of many proteins involved in antioxidation, such as members of the thiol redox system (up to 5·5-fold), metallothioneins (up to 12-fold) and haeme oxygenase 1 (1·5-fold). These results were confirmed using real-time PCR analysis, and α-lipoic acid dose dependently increased the mRNA levels of various proteins involved in drug metabolism and antioxidation. Consistent with these observations, α-lipoic acid dose dependently increased the hepatic concentration of glutathione and the activities of glutathione reductase and glutathione transferase measured using 1-chloro-2,4-dinitrobenzene and 1,2-dichloro-4-nitrobenzene as substrates, but decreased the hepatic and serum concentrations of malondialdehyde. In conclusion, the present study unequivocally demonstrated that α-lipoic acid increases the mRNA expression of proteins involved in drug metabolism and antioxidation in the liver.
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Kütter MT, Romano LA, Ventura-Lima J, Tesser MB, Monserrat JM. Antioxidant and toxicological effects elicited by alpha-lipoic acid in aquatic organisms. Comp Biochem Physiol C Toxicol Pharmacol 2014; 162:70-6. [PMID: 24704542 DOI: 10.1016/j.cbpc.2014.03.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 03/25/2014] [Accepted: 03/26/2014] [Indexed: 12/27/2022]
Abstract
Lipoic acid (LA) is a disulfide-containing compound derived from octanoic acid that is synthesized in mitochondria. This molecule acts as a co-factor for mitochondrial enzymes that catalyze oxidative decarboxylation reactions. Several antioxidant properties of LA enable it to be considered as an "ideal antioxidant", having diverse benefits that allow it to deal with environmental or biological stress. Some of the effects induced by LA in aquatic organisms render it suitable for use in aquaculture. However, it is necessary to determine the appropriate dose(s) to be used with different species and even organs to maximize the beneficial antioxidant and detoxifying effects and to minimize the pro-oxidant toxic effects. This review analyzes and compiles existing data from aquatic organisms in which both benefits and drawbacks of LA have been described.
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Affiliation(s)
- M T Kütter
- Programa de Pós-Graduação em Aquicultura, Universidade Federal do Rio Grande - FURG, Av. Itália km 8, Rio Grande, RS, C.P. 474, CEP 96.200-970, Brasil
| | - L A Romano
- Programa de Pós-Graduação em Aquicultura, Universidade Federal do Rio Grande - FURG, Av. Itália km 8, Rio Grande, RS, C.P. 474, CEP 96.200-970, Brasil; Instituto de Oceanografia (IO), Laboratório de Patologia e Imunologia de Organismos Aquáticos, FURG, Brasil
| | - J Ventura-Lima
- Programa de Pós-Graduação em Ciências Fisiológicas - Fisiologia Animal Comparada, Universidade Federal do Rio Grande - FURG, Av. Itália km 8, Rio Grande, RS, C.P. 474, CEP 96.200-970, Brasil; Instituto de Ciências Biológicas (ICB), FURG, Brasil
| | - M B Tesser
- Programa de Pós-Graduação em Aquicultura, Universidade Federal do Rio Grande - FURG, Av. Itália km 8, Rio Grande, RS, C.P. 474, CEP 96.200-970, Brasil; Instituto de Oceanografia (IO), Laboratório de Nutrição de Organismos Aquáticos, FURG, Brazil
| | - J M Monserrat
- Programa de Pós-Graduação em Aquicultura, Universidade Federal do Rio Grande - FURG, Av. Itália km 8, Rio Grande, RS, C.P. 474, CEP 96.200-970, Brasil; Programa de Pós-Graduação em Ciências Fisiológicas - Fisiologia Animal Comparada, Universidade Federal do Rio Grande - FURG, Av. Itália km 8, Rio Grande, RS, C.P. 474, CEP 96.200-970, Brasil; Instituto de Ciências Biológicas (ICB), FURG, Brasil.
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Tsai CJ, Chen YL, Feng CH. Dispersive liquid–liquid microextraction combined with microwave-assisted derivatization for determining lipoic acid and its metabolites in human urine. J Chromatogr A 2013; 1310:31-6. [DOI: 10.1016/j.chroma.2013.08.048] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 08/13/2013] [Accepted: 08/15/2013] [Indexed: 12/22/2022]
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Wołyniec E, Karpińska J, Łosiewska S, Turkowicz M, Klimczuk J, Kojło A. Determination of lipoic acid by flow-injection and high-performance liquid chromatography with chemiluminescence detection. Talanta 2012; 96:223-9. [DOI: 10.1016/j.talanta.2012.02.064] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 02/16/2012] [Accepted: 02/22/2012] [Indexed: 10/28/2022]
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Isolation and identification of low molecular weight antioxidant compounds from fermented “chorizo” sausages. Meat Sci 2012; 90:494-501. [DOI: 10.1016/j.meatsci.2011.09.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Revised: 08/02/2011] [Accepted: 09/19/2011] [Indexed: 11/18/2022]
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37
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Simultaneous Determination of the Endogenous Free α-Lipoic Acid and Dihydrolipoic Acid in Human Plasma and Erythrocytes by RP-HPLC with Electrochemical Detection. Chromatographia 2011. [DOI: 10.1007/s10337-011-1997-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Siangproh W, Rattanarat P, Chailapakul O. Reverse-phase liquid chromatographic determination of α-lipoic acid in dietary supplements using a boron-doped diamond electrode. J Chromatogr A 2010; 1217:7699-705. [DOI: 10.1016/j.chroma.2010.10.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Revised: 08/28/2010] [Accepted: 10/04/2010] [Indexed: 10/19/2022]
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