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He XLS, Wang N, Teng X, Wang NN, Xie ZY, Dong YJ, Lin MQ, Zhang ZH, Rong M, Chen YG, Li B, Lv GY, Chen SH. Dendrobium officinale flowers' topical extracts improve skin oxidative stress and aging. J Cosmet Dermatol 2024; 23:1891-1904. [PMID: 38362670 DOI: 10.1111/jocd.16210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 12/25/2023] [Accepted: 01/22/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Dendrobium officinale flowers (DOF) have the effects of antiaging and nourishing yin, but it lacks pharmacological research on skin aging. OBJECTIVE Confirming the role of DOF in delaying skin aging based on the "in vitro animal-human" model. METHODS In this experiment, three kinds of free radical scavenging experiments in vitro, D-galactose-induced aging mouse model, and human antiaging efficacy test were used to test whether DOF can improve skin aging through anti-oxidation. RESULTS In vitro experiment shows that DOF has certain scavenging effect on 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical, hydroxyl free radical, and superoxide free radical, and its IC50 is 0.2090 μg/mL, 15.020, and 1.217 mg/mL respectively. DOF can enhance the activities of T-AOC, SOD, CAT, and GSH Px in the serum of aging mice, increase the content of GSH, and reduce the content of MDA when administered with DOF of 1.0, 2.0, and 4.0 g/kg for 6 weeks. In addition, it can enhance the activity of SOD in the skin of aging mice, increase the content of Hyp, and decrease the content of MDA, activated Keap1/Nrf2 pathway in the skin of aging mice. Applying DOF with a concentration of 0.2 g/mL on the face for 8 weeks can significantly improve the skin water score and elasticity value, reduce facial wrinkles, pores, acne, and UV spots, and improve the facial brown spots and roughness. CONCLUSION DOF can significantly improve skin aging caused by oxidative stress, and its mechanism may be related to scavenging free radicals in the body and improving skin quality.
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Affiliation(s)
- Xing-Li-Shang He
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Huzhou, Zhejiang, PR China
- Zhejiang Provincial Key Laboratory of TCM for Innovative R & D and Digital Intelligent Manufacturing of TCM Great Health Products, Huzhou, Zhejiang, PR China
| | - Ning Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Huzhou, Zhejiang, PR China
- Zhejiang Provincial Key Laboratory of TCM for Innovative R & D and Digital Intelligent Manufacturing of TCM Great Health Products, Huzhou, Zhejiang, PR China
| | - Xi Teng
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Huzhou, Zhejiang, PR China
- Zhejiang Provincial Key Laboratory of TCM for Innovative R & D and Digital Intelligent Manufacturing of TCM Great Health Products, Huzhou, Zhejiang, PR China
| | - Nan-Nan Wang
- College of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Zhi-Yi Xie
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Huzhou, Zhejiang, PR China
- Zhejiang Provincial Key Laboratory of TCM for Innovative R & D and Digital Intelligent Manufacturing of TCM Great Health Products, Huzhou, Zhejiang, PR China
| | - Ying-Jie Dong
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Huzhou, Zhejiang, PR China
- Zhejiang Provincial Key Laboratory of TCM for Innovative R & D and Digital Intelligent Manufacturing of TCM Great Health Products, Huzhou, Zhejiang, PR China
| | - Min-Qiu Lin
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Huzhou, Zhejiang, PR China
- Zhejiang Provincial Key Laboratory of TCM for Innovative R & D and Digital Intelligent Manufacturing of TCM Great Health Products, Huzhou, Zhejiang, PR China
| | - Ze-Hua Zhang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Huzhou, Zhejiang, PR China
- Zhejiang Provincial Key Laboratory of TCM for Innovative R & D and Digital Intelligent Manufacturing of TCM Great Health Products, Huzhou, Zhejiang, PR China
| | - Mei Rong
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Huzhou, Zhejiang, PR China
- Zhejiang Provincial Key Laboratory of TCM for Innovative R & D and Digital Intelligent Manufacturing of TCM Great Health Products, Huzhou, Zhejiang, PR China
| | - Yi-Gong Chen
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China
| | - Bo Li
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Huzhou, Zhejiang, PR China
- Zhejiang Provincial Key Laboratory of TCM for Innovative R & D and Digital Intelligent Manufacturing of TCM Great Health Products, Huzhou, Zhejiang, PR China
| | - Gui-Yuan Lv
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, PR China
| | - Su-Hong Chen
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Huzhou, Zhejiang, PR China
- Zhejiang Provincial Key Laboratory of TCM for Innovative R & D and Digital Intelligent Manufacturing of TCM Great Health Products, Huzhou, Zhejiang, PR China
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Uranga J, Mujika JI, Grande-Aztatzi R, Matxain JM. Oxidation of Acid, Base, and Amide Side-Chain Amino Acid Derivatives via Hydroxyl Radical. J Phys Chem B 2018; 122:4956-4971. [PMID: 29676577 DOI: 10.1021/acs.jpcb.7b12450] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hydroxyl radical (•OH) is known to be highly reactive. Herein, we analyze the oxidation of acid (Asp and Glu), base (Arg and Lys), and amide (Asn and Gln) containing amino acid derivatives by the consecutive attack of two •OH. In this work, we study the reaction pathway by means of density functional theory. The oxidation mechanism is divided into two steps: (1) the first •OH can abstract a H atom or an electron, leading to a radical amino acid derivative, which is the intermediate of the reaction and (2) the second •OH can abstract another H atom or add itself to the formed radical, rendering the final oxidized products. The studied second attack of •OH is applicable to situations where high concentration of •OH is found, e.g., in vitro. Carbonyls are the best known oxidation products for these reactions. This work includes solvent dielectric and confirmation's effects of the reaction, showing that both are negligible. Overall, the most favored intermediates of the oxidation process at the side chain correspond to the secondary radicals stabilized by hyperconjugation. Intermediates show to be more stable in those cases where the spin density of the unpaired electron is lowered. Alcohols formed at the side chains are the most favored products, followed by the double-bond-containing ones. Interestingly, Arg and Lys side-chain scission leads to the most favored carbonyl-containing oxidation products, in line with experimental results.
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Affiliation(s)
- Jon Uranga
- Kimika Fakultatea-Chemistry Department , Euskal Herriko Unibertsitatea (UPV/EHU) , P.K. 1072 , 20080 Donostia , Euskadi , Spain.,Donostia International Physics Center (DIPC) , Manuel Lardizabal 4 , 20018 Donostia , Euskadi , Spain
| | - Jon I Mujika
- Donostia International Physics Center (DIPC) , Manuel Lardizabal 4 , 20018 Donostia , Euskadi , Spain
| | - Rafael Grande-Aztatzi
- Donostia International Physics Center (DIPC) , Manuel Lardizabal 4 , 20018 Donostia , Euskadi , Spain
| | - Jon M Matxain
- Kimika Fakultatea-Chemistry Department , Euskal Herriko Unibertsitatea (UPV/EHU) , P.K. 1072 , 20080 Donostia , Euskadi , Spain.,Donostia International Physics Center (DIPC) , Manuel Lardizabal 4 , 20018 Donostia , Euskadi , Spain
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3
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Owen MC, Strodel B, Csizmadia IG, Viskolcz B. Radical Formation Initiates Solvent-Dependent Unfolding and β-sheet Formation in a Model Helical Peptide. J Phys Chem B 2016; 120:4878-89. [PMID: 27169334 DOI: 10.1021/acs.jpcb.6b00174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We examined the effects of Cα-centered radical formation on the stability of a model helical peptide, N-Ac-KK(AL)10KK-NH2. Three, 100 ns molecular dynamics simulations using the OPLS-AA force field were carried out on each α-helical peptide in six distinct binary TIP4P water/2,2,2-trifluoroethanol (TFE) mixtures. The α-helicity was at a maximum in 20% TFE, which was inversely proportional to the number of H-bonds between water molecules and the peptide backbone. The radial distribution of TFE around the peptide backbone was highest in 20% TFE, which enhanced helix stability. The Cα-centered radical initiated the formation of a turn within 5 ns, which was a smaller kink at high TFE concentrations, and a loop at lower TFE concentrations. The highest helicity of the peptide radical was measured in 100% TFE. The formation of hydrogen bonds between the peptide backbone and water destabilized the helix, whereas the clustering of TFE molecules around the radical center stabilized the helix. Following radical termination, the once helical structure converted to a β-sheet rich state in 100% water only, and this transition did not occur in the nonradical control peptide. This study gives evidence on how the formation of peptide radicals can initiate α-helical to β-sheet transitions under oxidative stress conditions.
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Affiliation(s)
- Michael C Owen
- Institute of Complex Systems: Structural Biochemistry (ICS-6), Forschungszentrum Jülich , 52425 Jülich, Germany
| | - Birgit Strodel
- Institute of Complex Systems: Structural Biochemistry (ICS-6), Forschungszentrum Jülich , 52425 Jülich, Germany.,Institute of Theoretical and Computational Chemistry, Heinrich Heine University Düsseldorf , Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Imre G Csizmadia
- Department of Chemistry, University of Toronto , Toronto, ON Canada M5S 3H6.,Institute of Chemistry, Faculty of Material Science, University of Miskolc , Egyetemváros 1, H-3529 Miskolc, Hungary.,Drug Discovery Research Center , 6720 Szeged, Hungary
| | - Béla Viskolcz
- Institute of Chemistry, Faculty of Material Science, University of Miskolc , Egyetemváros 1, H-3529 Miskolc, Hungary.,Drug Discovery Research Center , 6720 Szeged, Hungary
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Wang H, Wei S, Xue X, You Y, Ma Q. Adipose stem cells' antagonism in glycosylation of D-galactose-induced skin aging of nude mice and its skin recovery function. Int J Immunopathol Pharmacol 2016; 29:376-85. [PMID: 26916459 DOI: 10.1177/0394632016634348] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 01/21/2016] [Indexed: 02/02/2023] Open
Abstract
This study aims to discuss adipose stem cells' (ASCs) antagonism in glycosylation of D-galactose-induced skin aging of nude mice and its skin recovery function; the study also aims to explore a new mechanism of anti-aging to provide clinical anti-aging therapy with new thoughts and methods. We selected 40 healthy specific pathogen-free (SPF) nude mice and divided them randomly into four groups which were: blank control group; D-galactose + phosphate buffer saline (PBS) group; D-galactose + ASCs treatment group; and D-galactose + aminoguanidine (AG) group. Results showed that the superoxide dismutase (SOD) level of mice in the D-galactose-induced model group (87.15 ± 4.95 U/g) decreased significantly compared with that of control group (146.21 ± 4.76 U/g), while malonaldehyde (MDA) level of mice in D-galactose induced model group (11.12 ± 2.08 nmol/mg) increased significantly compared with that of control group (5.46 ± 2.05 nmol/mg) (P <0.05); thus D-galactose induced sub-acutely aging mice models were duplicated successfully. Results also indicated that transplantation of ASCs could reverse expression of aging-related biomarkers such as MDA, SOD, and advanced glycosylation end products (AGEs); hematoxylin and eosin (HE) staining showed that thickness of the dermis layer as well as the collagen content of mice in the D-galactose-induced model group increased significantly after ASC transplantation compared with that of control group. In addition, immunohistochemical assay showed that expression quantity of CD31 and vascular endothelial growth factor (VEGF) of mice in the D-galactose-induced model group increased significantly after ASC transplantation compared with that of control group. In conclusion, ASCs can trace cell distribution successfully through bioluminescence, and they survive for a short time in the skin after transplantation, which provides a basis for the application of ASC transplantation in clinical practices. Moreover, ASCs can control glycosylation level of D-galactose-induced skin aging of nude mice, reverse expression of aging-related biomarkers as well as restrain formation of advanced glycation end products, which are similar to the effects of AG inhibitors of advanced glycation end products. Thus, ASCs can prevent glycosylation-induced skin aging as well as recover functions of skin.
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Affiliation(s)
- Haiying Wang
- Department of Dermotology, Dongying People's Hospital of Shandong Provincial Hospital Group, Dongying, Shandong, PR China
| | - Shuyue Wei
- Department of Dermotology, Dongying People's Hospital of Shandong Provincial Hospital Group, Dongying, Shandong, PR China
| | - Xinxin Xue
- Binzhou Medical University, Yantai, Shandong, PR China
| | - Yuntian You
- Department of Dermotology, Dongying People's Hospital of Shandong Provincial Hospital Group, Dongying, Shandong, PR China
| | - Qiang Ma
- Department of Dermotology, Dongying People's Hospital of Shandong Provincial Hospital Group, Dongying, Shandong, PR China
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Uranga J, Lakuntza O, Ramos-Cordoba E, Matxain JM, Mujika JI. A computational study of radical initiated protein backbone homolytic dissociation on all natural amino acids. Phys Chem Chem Phys 2016; 18:30972-30981. [DOI: 10.1039/c6cp06529e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxyl radical (˙OH) is known to be one of the most reactive species. The attack of this radical onto the backbone of all natural amino acids is investigated.
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Affiliation(s)
- Jon Uranga
- Kimika Fakultatea
- Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC)
- 20080 Donostia
- Spain
| | - Oier Lakuntza
- Institut Catala d'Investigacio Quimica (ICIQ)
- 43007 Tarragona
- Spain
| | - Eloy Ramos-Cordoba
- Kimika Fakultatea
- Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC)
- 20080 Donostia
- Spain
- Department of Chemistry
| | - Jon M. Matxain
- Kimika Fakultatea
- Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC)
- 20080 Donostia
- Spain
| | - Jon I. Mujika
- Kimika Fakultatea
- Euskal Herriko Unibertsitatea (UPV/EHU) and Donostia International Physics Center (DIPC)
- 20080 Donostia
- Spain
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Zhang S, Dong Z, Peng Z, Lu F. Anti-aging effect of adipose-derived stem cells in a mouse model of skin aging induced by D-galactose. PLoS One 2014; 9:e97573. [PMID: 24831697 PMCID: PMC4022592 DOI: 10.1371/journal.pone.0097573] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 04/21/2014] [Indexed: 12/17/2022] Open
Abstract
Introduction Glycation products accumulate during aging of slowly renewing tissue, including skin, and are suggested as an important mechanism underlying the skin aging process. Adipose-derived cells are widely used in the clinic to treat ischemic diseases and enhance wound healing. Interestingly, adipose-derived stem cells (ASCs) are also effective in anti-aging therapy, although the mechanism underlying their effects remains unknown. The purpose of the present study was to examine the anti-aging effect of ASCs in a D-galactose-induced aging animal model and to clarify the underlying mechanism. Materials and Methods Six-week-old nude mice were subcutaneously injected with D-gal daily for 8 weeks. Two weeks after completion of treatment, mice were randomized to receive subcutaneous injections of 106 green fluorescent protein (GFP)-expressing ASCs, aminoguanidine (AG) or phosphate-buffered saline (PBS). Control mice received no treatment. We examined tissue histology and determined the activity of senescence-associated molecular markers such as superoxide dismutase (SOD) and malondialdehyde (MDA). Results Transplanted ASCs were detectable for 14 days and their GFP signal disappeared at day 28 after injection. ASCs inhibited advanced glycation end product (AGE) levels in our animal model as well as increased the SOD level and decreased the MDA level, all of which act to reverse the aging phenotype in a similar way to AG, an inhibitor of AGE formation. Furthermore, ASCs released angiogenic factors in vivo such as vascular endothelial growth factor, suggesting a skin trophic effect. Conclusions These results demonstrate that ASCs may contribute to the regeneration of skin during aging. In addition, the data shows that ASCs provide a functional benefit by glycation suppression, antioxidation, and trophic effects in a mouse model of aging.
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Affiliation(s)
- Shengchang Zhang
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guang Zhou, Guang Dong, P. R. China
| | - Ziqing Dong
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guang Zhou, Guang Dong, P. R. China
| | - Zhangsong Peng
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guang Zhou, Guang Dong, P. R. China
| | - Feng Lu
- Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, Guang Zhou, Guang Dong, P. R. China
- * E-mail:
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Signorelli S, Coitiño EL, Borsani O, Monza J. Molecular mechanisms for the reaction between (˙)OH radicals and proline: insights on the role as reactive oxygen species scavenger in plant stress. J Phys Chem B 2013; 118:37-47. [PMID: 24328335 DOI: 10.1021/jp407773u] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The accumulation of proline (Pro) and overproduction of reactive oxygen species (ROS) by plants exposed to stress is well-documented. In vitro assays show that enzyme inactivation by hydroxyl radicals ((•)OH) can be avoided in the presence of Pro, suggesting this amino acid might act as a (•)OH scavenger. Although production of hydroxyproline (Hyp) has been hypothesized in connection with such antioxidant activity, no evidence on the detailed mechanism of scavenging has been reported. To elucidate whether and how Hyp might be produced, we used density functional theory calculations coupled to a polarizable continuum model to explore 27 reaction channels including H-abstraction by (•)OH and (•)OH/H2O addition. The structure and energetics of stable species and transition states for each reaction channel were characterized at the PCM-(U)M06/6-31G(d,p) level in aqueous solution. Evidence is found for a main pathway in which Pro scavenges (•)OH by successive H-abstractions (ΔG(‡,298) = 4.1 and 7.5 kcal mol(-1)) to yield 3,4-Δ-Pro. A companion pathway with low barriers yielding Δ(1)-pyrroline-5-carboxylate (P5C) is also supported, linking with 5-Hyp through hydration. However, this connection remains unlikely in stressed plants because P5C would be efficiently recycled to Pro (contributing to its accumulation) by P5C reductase, hypothesis coined here as the "Pro-Pro cycle".
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Affiliation(s)
- Santiago Signorelli
- Laboratorio de Bioquímica, Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República , Av. E. Garzón 780, CP 12900 Montevideo, Uruguay
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Hydrogen peroxide induce modifications of human extracellular superoxide dismutase that results in enzyme inhibition. Redox Biol 2013; 1:24-31. [PMID: 24024135 PMCID: PMC3757672 DOI: 10.1016/j.redox.2012.12.004] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 12/20/2012] [Indexed: 11/25/2022] Open
Abstract
Superoxide dismutase (EC-SOD) controls the level of superoxide in the extracellular space by catalyzing the dismutation of superoxide into hydrogen peroxide and molecular oxygen. In addition, the enzyme reacts with hydrogen peroxide in a peroxidase reaction which is known to disrupt enzymatic activity. Here, we show that the peroxidase reaction supports a site-specific bond cleavage. Analyses by peptide mapping and mass spectrometry shows that oxidation of Pro112 supports the cleavage of the Pro112–His113 peptide bond. Substitution of Ala for Pro112 did not inhibit fragmentation, indicating that the oxidative fragmentation at this position is dictated by spatial organization and not by side-chain specificity. The major part of EC-SOD inhibited by the peroxidase reaction was not fragmented but found to encompass oxidations of histidine residues involved in the coordination of copper (His98 and His163). These oxidations are likely to support the dissociation of copper from the active site and thus loss of enzymatic activity. Homologous modifications have also been described for the intracellular isozyme, Cu/Zn-SOD, reflecting the almost identical structures of the active site within these enzymes. We speculate that the inactivation of EC-SOD by peroxidase activity plays a role in regulating SOD activity in vivo, as even low levels of superoxide will allow for the peroxidase reaction to occur.
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