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Milutinović M, Vasić S, Obradović A, Zuher A, Jovanović M, Radovanović M, Čomić L, Marković S. Phytochemical Evaluation, Antimicrobial and Anticancer Properties of New “Oligo Grapes” Supplement. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19860371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This research presents complete data about phytochemical analysis and biological activities of a new dietary supplement for commercial use “Oligo Grapes” (OG), and its individual constituents: lyophilized pomace (LP), clay supplemented with red wine extract, lyophilized pomace ethanolic extract (PE), and red wine extract. OG, as a commercially available food supplement, has not been previously tested for its biological activity. Now we want to present new data about its phytochemical screening, antioxidant and antibacterial activities, and anticancer properties with respect to its cytotoxicity and effects on redox status in colon cancer cell lines. The tested extracts expressed strong antibacterial activity against Proteus mirabilis and Proteus mirabilis ATCC 12453, where the synergy of contents inside the supplement demonstrated a higher influence on the bacteria than its separately tested constituents. Among the investigated extracts, PE, as the extract with the highest phenolics concentration, had remarkable cytotoxic activity on HCT-116 and SW-480 colon cancer cells. Also, the treatments modulated redox status in the investigated cancer cells, by inducing oxidative and nitrosative stress, which could be one of the preferred mechanisms of the anticancer action. Based on the achieved antimicrobial and anticancer properties, there is a need for producing different food supplements and nutritional products originating from grapes. In this respect, the food supplement OG and its health benefits deserve scientific attention and further research.
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Affiliation(s)
- Milena Milutinović
- Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Serbia
| | - Sava Vasić
- Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Serbia
| | - Ana Obradović
- Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Serbia
| | - Aida Zuher
- Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Serbia
| | - Milena Jovanović
- Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Serbia
| | | | - Ljiljana Čomić
- Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Serbia
| | - Snežana Marković
- Department of Biology and Ecology, Faculty of Science, University of Kragujevac, Serbia
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Single Dose Administration of Taheebo Polyphenol Enhances Endurance Capacity in Mice. Sci Rep 2018; 8:14625. [PMID: 30279507 PMCID: PMC6168462 DOI: 10.1038/s41598-018-33029-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 09/13/2018] [Indexed: 12/24/2022] Open
Abstract
Endurance capacity is important for maintenance of quality of life as well as performance of endurance athletes. In order to improve endurance, intake of nutritional supplements as well as exercise training is also important. Indeed, polyphenolic extracts from plants are known to improve endurance capacity via increase of fatty acid utilization, mitochondrial biogenesis or inhibition of oxidative stress. Taheebo, the extract obtained from inner bark of Tabebuia avellanedae has been reported to have beneficial effects for treatment of inflammation, oxidative stress and obesity. Here, we investigated the effects and mechanisms of polyphenol fraction of taheebo (taheebo polyphenol; TP) on endurance capacity of mice. Single dose administration of TP significantly increased running time until exhaustion. Acute TP administration increased blood glucose and muscle glycogen levels (p < 0.05) through alteration on expression level of genes involved with glycogen metabolism and gluconeogenesis. Furthermore, TP administration decreased exercise-induced increase of protein carbonyls in skeletal muscle. These results suggest that TP administration improve endurance capacity via up-regulation of skeletal muscle glycogen levels and maintenance of blood glucose by acceleration of gluconeogenesis as well as inhibition of exercise-induced oxidative stress. Single administration of TP also increased phosphorylation of AMP-activated protein kinase (AMPK) and gene expression level of sirtuin 1 (SIRT1) but did not change the marker of mitochondrial biogenesis.
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Xianchu L, Ming L, Xiangbin L, Lan Z. Grape seed proanthocyanidin extract supplementation affects exhaustive exercise-induced fatigue in mice. Food Nutr Res 2018; 62:1421. [PMID: 29904333 PMCID: PMC5995222 DOI: 10.29219/fnr.v62.1421] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 05/01/2018] [Accepted: 05/03/2018] [Indexed: 12/22/2022] Open
Abstract
Background Grape seed proanthocyanidin extract (GSPE) has been extensively reported to possess a wide range of beneficial properties in multiple tissue damage. Previous studies have shown that exhaustive exercise-induced fatigue associates with oxidative stress injury, inflammatory response, and mitochondrial dysfunction. Objective The aim of this study is to investigate the anti-fatigue effects of GSPE in mice and explore its possible underlying mechanism. Design The mouse model of exhaustive exercise-induced fatigue was established by using the forced swimming test, and GSPE was orally treated for successive 28 days at 0, 1, 50 and 100 mg/kg/day of body weight, designated the control, GSPE-L, GSPE-M and GSPE-H groups, respectively. Results The presented results showed that treatment of GSPE at a dose of 50 and 100 mg/kg/day of body weight significantly relieved exhaustive exercise-induced fatigue, indicated by increasing the forced swimming time. In addition, treatment of GSPE significantly improved the creatine phosphokinase and lactic dehydrogenase, as well as lactic acid level in exhaustive swimming. For underlying mechanisms, treatment of GSPE had anti-fatigue effects by promoting antioxidant ability and resisting oxidative effect, as represented by increased total antioxidative capability levels, enhanced superoxide dismutase and catalase activities, and ameliorated malondialdehyde levels. Furthermore, treatment of GSPE significantly inhibited the activity of tumor necrosis factor-α and interleukin-1β, which suggested that its protective effects on exhaustive exercise-induced fatigue may be attributed to inhibition of inflammatory response. Last but not the least, treatment of GSPE significantly improved succinate dehydrogenase and Na+-K+-ATPase levels to enhance mitochondrial function during exhaustive swimming-induced fatigue. Conclusions These results proved that treatment of GSPE possessed the beneficial properties of anti-inflammatory, antioxidant, and mitochondrial protection to improve exhaustive exercise, which suggested that GSPE could be used as an effective functional food to delay fatigue.
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Affiliation(s)
- Liu Xianchu
- Institute of Physical Education, Hunan University of Arts and Science, Hunan Province, Changde, China.,Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Liu Ming
- Institute of Physical Education, Hunan University of Arts and Science, Hunan Province, Changde, China.,Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Liu Xiangbin
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
| | - Zheng Lan
- Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, Hunan Normal University, Changsha, China
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Pillon Barcelos R, Freire Royes LF, Gonzalez-Gallego J, Bresciani G. Oxidative stress and inflammation: liver responses and adaptations to acute and regular exercise. Free Radic Res 2017; 51:222-236. [PMID: 28166653 DOI: 10.1080/10715762.2017.1291942] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The liver is remarkably important during exercise outcomes due to its contribution to detoxification, synthesis, and release of biomolecules, and energy supply to the exercising muscles. Recently, liver has been also shown to play an important role in redox status and inflammatory modulation during exercise. However, while several studies have described the adaptations of skeletal muscles to acute and chronic exercise, hepatic changes are still scarcely investigated. Indeed, acute intense exercise challenges the liver with increased reactive oxygen species (ROS) and inflammation onset, whereas regular training induces hepatic antioxidant and anti-inflammatory improvements. Acute and regular exercise protocols in combination with antioxidant and anti-inflammatory supplementation have been also tested to verify hepatic adaptations to exercise. Although positive results have been reported in some acute models, several studies have shown an increased exercise-related stress upon liver. A similar trend has been observed during training: while synergistic effects of training and antioxidant/anti-inflammatory supplementations have been occasionally found, others reported a blunting of relevant adaptations to exercise, following the patterns described in skeletal muscles. This review discusses current data regarding liver responses and adaptation to acute and regular exercise protocols alone or combined with antioxidant and anti-inflammatory supplementation. The understanding of the mechanisms behind these modulations is of interest for both exercise-related health and performance outcomes.
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Affiliation(s)
- Rômulo Pillon Barcelos
- a Instituto de Ciências Biológicas , Universidade de Passo Fundo , Passo Fundo , Brazil.,b Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica (PPGBTOx) , Universidade Federal de Santa Maria (UFSM) , Santa Maria , Brazil
| | - Luiz Fernando Freire Royes
- b Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica (PPGBTOx) , Universidade Federal de Santa Maria (UFSM) , Santa Maria , Brazil.,c Laboratório de Bioquímica do Exercício, Centro de Educação Física e Desportos , Universidade Federal de Santa Maria (UFSM) , Santa Maria , Brazil
| | - Javier Gonzalez-Gallego
- d Institute of Biomedicine (IBIOMED) and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd) , University of León , León , Spain
| | - Guilherme Bresciani
- e Grupo de Investigación en Rendimiento Físico y Salud (IRyS), Escuela de Educación Física , Pontificia Universidad Católica de Valparaiso , Valparaiso , Chile
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Okudan N, Belviranli M. Effects of exercise training on hepatic oxidative stress and antioxidant status in aged rats. Arch Physiol Biochem 2016; 122:180-185. [PMID: 27424521 DOI: 10.1080/13813455.2016.1199574] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
This study investigated the effects of exercise training on oxidative stress, and antioxidant defense markers in the liver tissues of young and aged rats. Two age groups of 4-(young) and 20-months-(aged) old male Wistar rats were performed exercise training program consisted of swimming exercise for 8 weeks. The biomarkers of pro/antioxidant status malondialdehyde (MDA), protein carbonyl (PC), 8-hydroxy-2'-deoxyguanosine (8-OHdG), total glutathione (GSH) and superoxide dismutase (SOD) were assessed by commercially available kits. PC levels were higher in the untrained aged rats compared to the young groups and exercise training decreased PC levels (p < 0.05). 8-OHdG levels were higher in the aged groups (p < 0.05). MDA and GSH levels and SOD activity did not differ significantly between the groups (p > 0.05). The present findings indicate that exercise training prevents aging-induced hepatic oxidative damage especially in the proteins.
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Affiliation(s)
- Nilsel Okudan
- a School of Medicine, Department of Physiology, Division of Sports Physiology, Selçuk University , Konya , Turkey
| | - Muaz Belviranli
- a School of Medicine, Department of Physiology, Division of Sports Physiology, Selçuk University , Konya , Turkey
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Niu Q, Mu L, Li S, Xu S, Ma R, Guo S. Proanthocyanidin Protects Human Embryo Hepatocytes from Fluoride-Induced Oxidative Stress by Regulating Iron Metabolism. Biol Trace Elem Res 2016; 169:174-9. [PMID: 26105545 DOI: 10.1007/s12011-015-0409-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 06/11/2015] [Indexed: 01/01/2023]
Abstract
To investigate whether grape seed proanthocyanidin extract (GSPE) antagonizes fluoride-induced oxidative injury by regulating iron metabolism, human embryo hepatic cells (L-02) were incubated with sodium fluoride (NaF, 80 mg/L) and/or GSPE (100 μmol/L) for 24 h. Results showed the glutathione peroxidase (GSH-Px) content, superoxide dismutase (SOD) activity, and total antioxidant capacity (T-AOC) level of the NaF group were significantly lower than that of the control group (P < 0.05), while malondialdehyde (MDA) content increased in the NaF group compared with the control group (P < 0.05). Moreover, the indexes mentioned above showed opposite changes in the NaF + GSPE group. In addition, iron content significantly increased in the NaF group compared to the control group(P < 0.05) and significantly decreased in the NaF + GSPE group compared to the NaF group (P < 0.05). Furthermore, hepcidin (coded by HAMP) messenger RNA (mRNA) expression significantly increased in the NaF group compared to the control group(P < 0.05) and significantly decreased in the NaF + GSPE group compared to the NaF group (P < 0.05). Ferroportin 1 (coded by FPN1) mRNA expression significantly decreased in the NaF group compared to the control group (P < 0.05) and significantly increased in the NaF + GSPE group compared to the NaF group (P < 0.05). These results indicate that GSPE provides significant cellular protection against oxidative stress induced by excessive fluoride via the iron metabolism regulation.
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Affiliation(s)
- Qiang Niu
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China
- Department of Preventive Medicine, Medical College, Shihezi University, Bei er Road 13, Shihezi, 832002, Xinjiang, People's Republic of China
| | - Lati Mu
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China
- Department of Preventive Medicine, Medical College, Shihezi University, Bei er Road 13, Shihezi, 832002, Xinjiang, People's Republic of China
| | - Shugang Li
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China
- Department of Preventive Medicine, Medical College, Shihezi University, Bei er Road 13, Shihezi, 832002, Xinjiang, People's Republic of China
| | - Shangzhi Xu
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China
- Department of Preventive Medicine, Medical College, Shihezi University, Bei er Road 13, Shihezi, 832002, Xinjiang, People's Republic of China
| | - Ruling Ma
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China
- Department of Preventive Medicine, Medical College, Shihezi University, Bei er Road 13, Shihezi, 832002, Xinjiang, People's Republic of China
| | - Shuxia Guo
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases, Ministry of Education, Shihezi University School of Medicine, Shihezi, China.
- Department of Preventive Medicine, Medical College, Shihezi University, Bei er Road 13, Shihezi, 832002, Xinjiang, People's Republic of China.
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El-Awdan SA, Abdel Jaleel GA, Saleh DO. Alleviation of haloperidol induced oxidative stress in rats: Effects of sucrose vs grape seed extract. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.bfopcu.2015.02.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dos Santos JL, Dantas REA, Lima CA, de Araújo SS, de Almeida ECV, Marçal AC, Estevam CDS. Protective effect of a hydroethanolic extract from Bowdichia virgilioides on muscular damage and oxidative stress caused by strenuous resistance training in rats. J Int Soc Sports Nutr 2014; 11:58. [PMID: 25649187 PMCID: PMC4308926 DOI: 10.1186/s12970-014-0058-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 11/17/2014] [Indexed: 12/14/2022] Open
Abstract
Background Natural antioxidants can reduce oxidative damage caused by high-intensity resistance training (RT). We investigated the in vitro antioxidant potential of hydroethanolic extract (HEE) from Bowdichia virgilioides on muscular damage and oxidative stress in rats subjected to high-intensity RT. Methods Thirty-two male Wistar rats were divided into four experimental groups: 1) control group (CG), oral administration (P.O.) of vehicle; 2) trained group (TG), vehicle-treated with RT; 3) B. virgilioides untrained group (BVG), treated with B. virgilioides HEE (200 mg/kg P.O.); and 4) trained B. virgilioides group (TBVG), treated with B. virgiliodes HEE (200 mg/kg P.O.). All animals were habituated to the training apparatus for 1 week. CT and TBVG animals were subjected to the training protocol, which consisted of three sets of 10 repetitions with 75% of the load established using the one-repetition maximum, for four weeks. CG and BVG animals were manipulated and fixed to the apparatus three times a week with no load. Treatment with B. virgilioides HEE or vehicle treatment was initiated after 25 days of RT (5 days; one dose per day). At the end of the experiments, plasmatic and gastrocnemius samples from all groups were obtained for the assessment of lipid peroxidation and creatine kinase activity. Results Compared to TG rats, TBVG rats showed decreases in plasma and gastrocnemius tissue lipid peroxidation by 55.68% (p <0.0001) and 66.61% (p <0.0012), respectively. Further, compared to TG rats TBVG rats showed decreases in plasma and gastrocnemius tissue oxidative stress by 62.83% (p <0.0005) and 54.97% (p <0.0197), respectively. Conclusions B. virgilioides HEE treatment reduced markers of oxidative stress caused by high-intensity RT. Further, HEE treatment during training significantly reduced the markers of tissue damage.
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Affiliation(s)
- Jymmys Lopes Dos Santos
- Postgraduate program in Physical Education, Department of Physical Education, Federal University of Sergipe, São Cristóvão, SE 49100-000 Brazil ; Federal University of Sergipe, Cidade Universitária Prof. José Aloísio de Campos, Department of Morphology, Av. Marechal Rondon s/n, Jardim Rosa Elze, São Cristóvão, Sergipe 49100-000 Brazil
| | - Rafaela Eugênia Arce Dantas
- Federal University of Sergipe, Cidade Universitária Prof. José Aloísio de Campos, Department of Morphology, Av. Marechal Rondon s/n, Jardim Rosa Elze, São Cristóvão, Sergipe 49100-000 Brazil
| | - Clésio Andrade Lima
- Laboratory of Natural Product Chemistry and Biochemistry, Department of Physiology, Federal University of Sergipe, São Cristóvão, SE 49100-000 Brazil
| | - Silvan Silva de Araújo
- Laboratory of Natural Product Chemistry and Biochemistry, Department of Physiology, Federal University of Sergipe, São Cristóvão, SE 49100-000 Brazil
| | - Elis Cristiane Valença de Almeida
- Laboratory of Natural Product Chemistry and Biochemistry, Department of Physiology, Federal University of Sergipe, São Cristóvão, SE 49100-000 Brazil
| | - Anderson Carlos Marçal
- Federal University of Sergipe, Cidade Universitária Prof. José Aloísio de Campos, Department of Morphology, Av. Marechal Rondon s/n, Jardim Rosa Elze, São Cristóvão, Sergipe 49100-000 Brazil
| | - Charles Dos Santos Estevam
- Laboratory of Natural Product Chemistry and Biochemistry, Department of Physiology, Federal University of Sergipe, São Cristóvão, SE 49100-000 Brazil
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Yonguc GN, Dodurga Y, Adiguzel E, Gundogdu G, Kucukatay V, Ozbal S, Yilmaz I, Cankurt U, Yilmaz Y, Akdogan I. Grape seed extract has superior beneficial effects than vitamin E on oxidative stress and apoptosis in the hippocampus of streptozotocin induced diabetic rats. Gene 2014; 555:119-26. [PMID: 25445279 DOI: 10.1016/j.gene.2014.10.052] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 10/24/2014] [Accepted: 10/28/2014] [Indexed: 01/16/2023]
Abstract
We aimed to investigate the effects of grape seed extract (GSE) and vitamin E (Vit E) on oxidative stress and apoptosis in the hippocampus of streptozotocin-induced diabetic rats. In Control, Diabetic, and Diabetic treated with GSE (Diabetic+GSE) and vitamin E (Diabetic+Vit E) groups, oxidative stress index (OSI), TUNEL staining and Bcl-2, Bcl-XL, Bax, caspase-3, -9, and -8, Cyt-c, TNF-α, and NF-κB gene expressions were evaluated. OSI was significantly increased in the plasma and hippocampus of the Diabetic compared to Control group and decreased in Diabetic+GSE and Diabetic+Vit E groups compared to Diabetic. TUNEL positive neurons significantly increased in the hippocampus of the Diabetic group compared to Control and decreased in Diabetic+GSE (more prominently) and Diabetic+Vit E groups compared to Diabetic. In the hippocampus of the Diabetic group, Bcl-2 and Bcl-XL gene expressions were significantly decreased; Bax, caspase-3, -9, and -8, Cyt-c, TNF-α, and NF-κB gene expressions were significantly increased compared to Control. In Diabetic+GSE and Diabetic+Vit E groups, Bcl-2 gene expressions were significantly increased; Bcl-XL gene expressions did not differ compared to the Diabetic group. The expression of Bax, caspase-3, -9, and -8, Cyt-c, TNF-α, and NF-κB genes in the Diabetic+GSE group and the expression of caspase-3 and -9, TNF-α, and NF-κB genes in the Diabetic+Vit E group were significantly decreased compared to Diabetic. In conclusion, GSE (more prominently) and vitamin E decreased oxidative stress and neuronal apoptosis occurring in the hippocampus of diabetic rats.
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Affiliation(s)
| | - Yavuz Dodurga
- Pamukkale University School of Medicine, Department of Medical Biology, Denizli, Turkey.
| | - Esat Adiguzel
- Pamukkale University School of Medicine, Department of Anatomy, Denizli, Turkey
| | - Gulsah Gundogdu
- Pamukkale University School of Medicine, Department of Physiology, Denizli, Turkey
| | - Vural Kucukatay
- Pamukkale University School of Medicine, Department of Physiology, Denizli, Turkey
| | - Seda Ozbal
- Dokuz Eylul University School of Medicine, Department of Histology and Embryology, Izmir, Turkey
| | - Ismail Yilmaz
- Izmir Bozyaka Training and Research Hospital, Department of Pharmacology, Izmir, Turkey
| | - Ulker Cankurt
- Dokuz Eylul University School of Medicine, Department of Histology and Embryology, Izmir, Turkey
| | - Yusuf Yilmaz
- Mehmet Akif Ersoy University Faculty of Engineering and Architecture, Department of Food Engineering, Burdur, Turkey
| | - Ilgaz Akdogan
- Pamukkale University School of Medicine, Department of Anatomy, Denizli, Turkey
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Hwang E, Park SY, Lee HJ, Lee TY, Sun ZW, Yi TH. Gallic acid regulates skin photoaging in UVB-exposed fibroblast and hairless mice. Phytother Res 2014; 28:1778-88. [PMID: 25131997 DOI: 10.1002/ptr.5198] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 05/28/2014] [Accepted: 06/17/2014] [Indexed: 01/06/2023]
Abstract
Ultraviolet (UV) radiation is the primary factor in skin photoaging, which is characterized by wrinkle formation, dryness, and thickening. The mechanisms underlying skin photoaging are closely associated with degradation of collagen via upregulation of matrix metalloproteinase (MMP) activity, which is induced by reactive oxygen species (ROS) production. Gallic acid (GA), a phenolic compound, possesses a variety of biological activities including antioxidant and antiinflammatory activities. We investigated the protective effects of GA against photoaging caused by UVB irradiation using normal human dermal fibroblasts (NHDFs) in vitro and hairless mice in vivo. The production levels of ROS, interlukin-6, and MMP-1 were significantly suppressed, and type I procollagen expression was stimulated in UVB-irradiated and GA-treated NHDFs. GA treatment inhibited the activity of transcription factor activation protein 1. The effects of GA following topical application and dietary administration were examined by measuring wrinkle formation, histological modification, protein expression, and physiological changes such as stratum corneum hydration, transepidermal water loss, and erythema index. We found that GA decreased dryness, skin thickness, and wrinkle formation via negative modulation of MMP-1 secretion and positive regulation of elastin, type I procollagen, and transforming growth factor-β1. Our data indicate that GA is a potential candidate for the prevention of UVB-induced premature skin aging.
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Affiliation(s)
- Eunson Hwang
- Department of Oriental Medicinal Material and Processing, College of Life Science, Kyung Hee University, Global Campus, 1732 Deokyoungdaero, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Korea
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