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Xu F, Yi X, Zhang X, Pei D, Yuan J, Wang N, Di D, Zeng W, Liu Y, Wang H. Identification of anti-photoaging components of Olea europaea leaves based on spectrum-effect relationship. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1226:123807. [PMID: 37354734 DOI: 10.1016/j.jchromb.2023.123807] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/14/2023] [Accepted: 06/17/2023] [Indexed: 06/26/2023]
Abstract
In this study, to identify bioactive components of Olea europaea leaves extract (OLE), chemometrics analyses including bivariate correlation analysis and partial least squares regression were used to establish the relationships between the chromatograms and anti-photoaging effect of OLE samples. Firstly, the fingerprint of olive leaves extract was determined by high-performance liquid chromatography (HPLC). Photoaging models of HaCaT cells were established by UVB irradiation. The photoaging resistance of OLE was evaluated by cell viability using the MTT assay. Chemometrics analyses showed that compounds 14, 19, 20, 24, 26, and 28 might be the major anti-photoaging components of OLE. Furthermore, after separation by HSCCC and NMR identification, compound 19 is luteoloside and compound 24 is oleuropein. Oleuropein and luteoloside were docked with collagenase (MMP-1), stromelysin (MMP-3), and gelatinase (MMP-9), respectively. The results showed that oleuropein and luteoloside inhibited their activity by directly interacting with MMP-1, MMP-3, and MMP-9, thereby exhibiting anti-photoaging activity. The current bioassay and spectrum-effect relationships are proper for associating sample quality with the active ingredient, and our finding would provide foundation and further understanding of the quality evaluation and quality control of Olea europaea.
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Affiliation(s)
- Fanghua Xu
- College of Life Sciences, Southwest Forestry University, Kunming 650000, China; Key Laboratory of Chemistry of Northwestern Plant Resources, CAS, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Xuetao Yi
- Qingdao Institute for Food and Drug Control, Qingdao 266100, China
| | - Xin Zhang
- College of Life Sciences, Southwest Forestry University, Kunming 650000, China; Key Laboratory of Chemistry of Northwestern Plant Resources, CAS, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Dong Pei
- Key Laboratory of Chemistry of Northwestern Plant Resources, CAS, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jiangjuan Yuan
- College of Life Sciences, Southwest Forestry University, Kunming 650000, China; Key Laboratory of Chemistry of Northwestern Plant Resources, CAS, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Ningli Wang
- Key Laboratory of Chemistry of Northwestern Plant Resources, CAS, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Duolong Di
- Key Laboratory of Chemistry of Northwestern Plant Resources, CAS, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Weidan Zeng
- Yunnan Olive Health Industry Innovation Research and Development CO., Ltd, Lijiang 674100, China
| | - Yun Liu
- College of Life Sciences, Southwest Forestry University, Kunming 650000, China.
| | - Han Wang
- Key Laboratory of Chemistry of Northwestern Plant Resources, CAS, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
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de Freitas Pires DG, de Araújo LM, Mesquita PG, Neves FDAR, Borin MDF. Antioxidant activity of mycelia methanolic extracts of endophytic fungi BvFV and BvFIX isolated from leaves of Bauhinia variegata. FRONTIERS IN FUNGAL BIOLOGY 2022; 3:1048734. [PMID: 37746214 PMCID: PMC10512253 DOI: 10.3389/ffunb.2022.1048734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/17/2022] [Indexed: 09/26/2023]
Abstract
Endophytes are considered an essential source of natural products. Skin is the body's largest organ; its primary function is the protection of other organs, and aging is one of the most relevant problems associated with this organ. UV radiation generates reactive oxygen species (ROS), which lead to skin degeneration and consequent aging. The main endogenous antioxidants that neutralize ROS are enzymatic antioxidants such as superoxide dismutase (SOD), catalase, glutathione peroxidase, and glutathione reductase, and non-enzymatic antioxidants, such as glutathione and α-tocopherol. Nuclear receptors are involved in molecular mechanisms that control the aging process, especially peroxisome proliferator-activated receptors (PPAR), which regulate the function and expression of genes that modulate the balance between matrix metalloproteinases (MMP) activity and the expression of collagen. Some natural compounds, such as polyphenols, can activate PPAR and reduce the activation of MMP and collagen degradation. In this work, the antioxidant activity of the mycelia methanolic extracts of two endophytic fungi isolated from leaves of Bauhinia variegata, named BvFV and BvFIX, their action as PPAR agonists, and their effect on the activity of antioxidant defense system enzymes were evaluated. The mycelia methanolic extract of BvFV showed a weak agonist effect on PPARβ/δ, a high capability to inhibit lipid peroxidation, increased catalase activity, and increased superoxide dismutase activity by approximately 64%. In contrast, BvFIX increased catalase activity and increased superoxide dismutase activity in a dose-dependent manner, with an increase of 49.62% ± 7.87%, 56.64% ± 12.27%, and 240.46% ± 26.11% at concentrations of 25 µg/mL, 50 µg/mL and 100 µg/mL, respectively, in human dermal fibroblasts submitted to oxidative stress. These results suggest that the metabolites of the mycelia of endophytic fungi studied are promising to act in the chemoprevention of skin aging.
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Affiliation(s)
| | | | | | | | - Maria de Fátima Borin
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Health Sciences Faculty, University of Brasilia, Brasilia, Brazil
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Xiao Z, Yang S, Liu Y, Zhou C, Hong P, Sun S, Qian ZJ. A novel glyceroglycolipid from brown algae Ishige okamurae improve photoaging and counteract inflammation in UVB-induced HaCaT cells. Chem Biol Interact 2022; 351:109737. [PMID: 34740599 DOI: 10.1016/j.cbi.2021.109737] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/29/2021] [Accepted: 11/01/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Excessive exposure to Ultraviolet (UV) rays can cause premature skin aging. Ishigoside (IGS) is a new glyceroglycolipid compound isolated from brown algal Ishige okamurae, However, whether it can protect the skin from (Ultraviolet-B) UVB damage has not been illuminated. METHODS The in vitro anti-photoaging effect of IGS was conducted in UVB-induced HaCaT. The HaCaT cells were divided into the following five groups: (1) cells didn't suffer from UVB irradiation or IGS treatment. (2-5) Cells were treated with various concentrations of IGS (0, 10, 50, and 100 μM) and irradiated by 40 mJ/cm2 UVB. The Matrix metalloproteinase (MMP) of photoaging process was determined by ELISA kits and the latent interaction between IGS and MMP was further performed by molecular docking. The crucial signaling pathway proteins involved in the collagen synthesis and degradation were subsequently evaluated by Western blotting, immunofluorescence and EMSA. RESULTS IGS effectively suppresses the high expressions and secretions of matrix metalloproteinases (MMPs) and photo-inflammation by blocking MAPKs, AP-1 and NF-κB. Meanwhile, increasing antioxidant enzyme expression. Molecular docking results suggest that inhibition of IGS on MMPs may be attributed to its hydrogen supply and hydrophobic capacity. In addition, IGS enhanced procollagen production by upregulating the TGF-β/Smad pathways. CONCLUSIONS IGS exhibited anti-photoaging activity in UVB-damage HaCaT. These effects might be a contribution by its suppression of MMPs expression via MAPKs, AP-1 and NF-κB pathway and have anti-oxidative and anti-inflammatory effects. Therefore, IGS has the great potential to become skin-care products or functional foods for preventing skin photoaging.
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Affiliation(s)
- Zhenbang Xiao
- School of Chemistry and Environment, College of Food Science and Technology, Shenzhen Institute of Guangdong Ocean University, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Shengtao Yang
- School of Chemistry and Environment, College of Food Science and Technology, Shenzhen Institute of Guangdong Ocean University, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Yi Liu
- School of Chemistry and Environment, College of Food Science and Technology, Shenzhen Institute of Guangdong Ocean University, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Chunxia Zhou
- School of Chemistry and Environment, College of Food Science and Technology, Shenzhen Institute of Guangdong Ocean University, Guangdong Ocean University, Zhanjiang, 524088, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang, 524025, China
| | - Pengzhi Hong
- School of Chemistry and Environment, College of Food Science and Technology, Shenzhen Institute of Guangdong Ocean University, Guangdong Ocean University, Zhanjiang, 524088, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang, 524025, China
| | - Shengli Sun
- School of Chemistry and Environment, College of Food Science and Technology, Shenzhen Institute of Guangdong Ocean University, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Zhong-Ji Qian
- School of Chemistry and Environment, College of Food Science and Technology, Shenzhen Institute of Guangdong Ocean University, Guangdong Ocean University, Zhanjiang, 524088, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhanjiang, 524025, China.
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Sadgrove NJ, Oblong JE, Simmonds MSJ. Inspired by vitamin A for anti‐ageing: Searching for plant‐derived functional retinoid analogues. SKIN HEALTH AND DISEASE 2021; 1:e36. [PMID: 35663133 PMCID: PMC9060083 DOI: 10.1002/ski2.36] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 03/21/2021] [Accepted: 04/02/2021] [Indexed: 11/11/2022]
Affiliation(s)
- N. J. Sadgrove
- Jodrell Science Laboratory Royal Botanic Gardens, Kew Richmond UK
| | - J. E. Oblong
- Mason Business Center The Procter & Gamble Company Mason Ohio USA
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Cicek D, Demir B, Orhan C, Tuzcu M, Ozercan IH, Sahin N, Komorowski J, Ojalvo SP, Sylla S, Sahin K. The Protective Effects of a Combination of an Arginine Silicate Complex and Magnesium Biotinate Against UV-Induced Skin Damage in Rats. Front Pharmacol 2021; 12:657207. [PMID: 34220502 PMCID: PMC8250765 DOI: 10.3389/fphar.2021.657207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 06/02/2021] [Indexed: 12/16/2022] Open
Abstract
The purpose of this study was to observe the effects of a novel combination of inositol-stabilized arginine silicate complex (ASI) and magnesium biotinate (MgB) on the prevention of skin damage after UVB exposure in rats. Forty-nine Sprague-Dawley rats were randomized into one of the following groups: (1) NC, normal control, (2) SC, shaved control, (3) UVB (exposed to UVB radiation), (4) ASI+MgB-L (Low Dose), (5) ASI+MgB-H (High Dose), (6) ASI+MgB-L+MgB cream, (7) ASI+MgB-H+MgB cream. The results showed that ASI+MgB treatment alleviated the macroscopic and histopathological damages in the skin of rats caused by UVB exposure. Skin elasticity evaluation showed a similar trend. ASI+MgB increased serum Mg, Fe, Zn, Cu, Si, biotin, and arginine concentrations and skin hydroxyproline and biotinidase levels while decreasing skin elastase activity (p < 0.05) and malondialdehyde (MDA) concentration (p < 0.001). Moreover, ASI+MgB treatment increased skin levels of biotin-dependent carboxylases (ACC1, ACC2, PC, PCC, MCC) and decreased mammalian target of rapamycin (mTOR) pathways and matrix metalloproteinase protein levels by the regulation of the activator protein 1 (AP-1), and mitogen activated protein kinases (MAPKs) signaling pathways. In addition, ASI+MgB caused lower levels of inflammatory factors, including TNF-α, NFκB, IL-6, IL-8, and COX-2 in the skin samples (p < 0.05). The levels of Bax and caspase-3 were increased, while anti-apoptotic protein Bcl-2 was decreased by UVB exposure, which was reversed by ASI+MgB treatment. These results show that treatment with ASI and MgB protects against skin damage by improving skin appearance, elasticity, inflammation, apoptosis, and overall health.
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Affiliation(s)
- Demet Cicek
- Department of Dermatology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Betul Demir
- Department of Dermatology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Cemal Orhan
- Department of Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - Mehmet Tuzcu
- Department of Biology, Faculty of Science, Firat University, Elazig, Turkey
| | | | - Nurhan Sahin
- Department of Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
| | - James Komorowski
- Research and Development, JDS Therapeutics, LLC, Harrison, NY, United States
| | - Sara Perez Ojalvo
- Research and Development, JDS Therapeutics, LLC, Harrison, NY, United States
| | - Sarah Sylla
- Research and Development, JDS Therapeutics, LLC, Harrison, NY, United States
| | - Kazim Sahin
- Department of Nutrition, Faculty of Veterinary Medicine, Firat University, Elazig, Turkey
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Wu Z, Meng Z, Wu Q, Zeng D, Guo Z, Yao J, Bian Y, Gu Y, Cheng S, Peng L, Zhao Y. Biomimetic and osteogenic 3D silk fibroin composite scaffolds with nano MgO and mineralized hydroxyapatite for bone regeneration. J Tissue Eng 2020; 11:2041731420967791. [PMID: 33294153 PMCID: PMC7705190 DOI: 10.1177/2041731420967791] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 10/01/2020] [Indexed: 01/15/2023] Open
Abstract
Artificial bioactive materials have received increasing attention worldwide in clinical orthopedics to repair bone defects that are caused by trauma, infections or tumors, especially dedicated to the multifunctional composite effect of materials. In this study, a weakly alkaline, biomimetic and osteogenic, three-dimensional composite scaffold (3DS) with hydroxyapatite (HAp) and nano magnesium oxide (MgO) embedded in fiber (F) of silkworm cocoon and silk fibroin (SF) is evaluated comprehensively for its bone repair potential in vivo and in vitro experiments, particularly focusing on the combined effect between HAp and MgO. Magnesium ions (Mg2+) has long been proven to promote bone tissue regeneration, and HAp is provided with osteoconductive properties. Interestingly, the weak alkaline microenvironment from MgO may also be crucial to promote Sprague-Dawley (SD) rat bone mesenchymal stem cells (BMSCs) proliferation, osteogenic differentiation and alkaline phosphatase (ALP) activities. This SF/F/HAp/nano MgO (SFFHM) 3DS with superior biocompatibility and biodegradability has better mechanical properties, BMSCs proliferation ability, osteogenic activity and differentiation potential compared with the scaffolds adding HAp or MgO alone or neither. Similarly, corresponding meaningful results are also demonstrated in a model of distal lateral femoral defect in SD rat. Therefore, we provide a promising 3D composite scaffold for promoting bone regeneration applications in bone tissue engineering.
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Affiliation(s)
- Ziquan Wu
- The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Zhulong Meng
- Municipal Hospital Affiliated to Medical School of Taizhou University, Taizhou, Zhejiang, China
| | - Qianjin Wu
- The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Delu Zeng
- The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Zhengdong Guo
- The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Jiangling Yao
- The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Yangyang Bian
- The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Yuntao Gu
- The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Shaowen Cheng
- The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Lei Peng
- The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China.,Key Laboratory of Emergency and Trauma of Hainan Medical University, Ministry of Education, Haikou, Hainan, China
| | - Yingzheng Zhao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
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Choi YJ. Shedding Light on the Effects of Calorie Restriction and its Mimetics on Skin Biology. Nutrients 2020; 12:nu12051529. [PMID: 32456324 PMCID: PMC7284700 DOI: 10.3390/nu12051529] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/20/2020] [Accepted: 05/22/2020] [Indexed: 12/11/2022] Open
Abstract
During the aging process of an organism, the skin gradually loses its structural and functional characteristics. The skin becomes more fragile and vulnerable to damage, which may contribute to age-related diseases and even death. Skin aging is aggravated by the fact that the skin is in direct contact with extrinsic factors, such as ultraviolet irradiation. While calorie restriction (CR) is the most effective intervention to extend the lifespan of organisms and prevent age-related disorders, its effects on cutaneous aging and disorders are poorly understood. This review discusses the effects of CR and its alternative dietary intake on skin biology, with a focus on skin aging. CR structurally and functionally affects most of the skin and has been reported to rescue both age-related and photo-induced changes. The anti-inflammatory, anti-oxidative, stem cell maintenance, and metabolic activities of CR contribute to its beneficial effects on the skin. To the best of the author’s knowledge, the effects of fasting or a specific nutrient-restricted diet on skin aging have not been evaluated; these strategies offer benefits in wound healing and inflammatory skin diseases. In addition, well-known CR mimetics, including resveratrol, metformin, rapamycin, and peroxisome proliferator-activated receptor agonists, show CR-like prevention against skin aging. An overview of the role of CR in skin biology will provide valuable insights that would eventually lead to improvements in skin health.
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Affiliation(s)
- Yeon Ja Choi
- Department of Biopharmaceutical Engineering, Division of Chemistry and Biotechnology, Dongguk University, Gyeongju 38066, Korea
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Oka S, Ohto N, Kuwahara H, Mizuno M. Oral administration of pineapple glucosylceramide improves defective epidermal barrier function by restoring diminished level of TGF-β in the skin. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03454-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Mechanism of Action of Magnesium Lithospermate B against Aging and Obesity-Induced ER Stress, Insulin Resistance, and Inflammsome Formation in the Liver. Molecules 2018; 23:molecules23092098. [PMID: 30134566 PMCID: PMC6225288 DOI: 10.3390/molecules23092098] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/17/2018] [Accepted: 08/20/2018] [Indexed: 01/25/2023] Open
Abstract
Magnesium lithospermate B (MLB) is the biologically active compound of the water-soluble fraction of Salvia miltiorrhiza. Magnesium lithospermate B exhibits various biological functions, including antidiabetic, neuroprotective, and antioxidant effects. However, its beneficial effects on insulin sensitivity and related signaling pathways in the liver need to be elucidated. Our previous study reported that MLB is a PPARβ/δ agonist in fibroblasts. Because insulin-sensitizing and anti-inflammatory effects of PPARβ/δ has been reported in the liver, we investigated whether MLB has a beneficial effect on insulin-, ER stress- and inflammasome-related signaling in the livers of aging and obese animal models. Western blotting and protein-ligand docking simulation showed that MLB activated PPARβ/δ and improved glucose tolerance in the livers of aging and obese animal models. MLB supplementation ameliorated aging or obesity-induced disruption of insulin signaling in the liver. Consistently, aging and obesity-induced increase in the protein levels of a gluconeogenic phosphoenolpyruvate carboxykinase was decreased by MLB. When molecular signaling pathways related to insulin signaling were examined in the liver, MLB supplementation suppressed ER stress- and inflammasome-related signaling molecules induced by aging and obesity. These results suggest that MLB may improve insulin resistance in the liver at least partially by suppressing ER stress and inflammasome formation in aging and obese animal models.
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Piper retrofractum Vahl. Extract, as a PPAR δ and AMPK Activator, Suppresses UVB-Induced Photoaging through Mitochondrial Biogenesis and MMPs Inhibition in Human Dermal Fibroblasts and Hairless Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:6172954. [PMID: 29619069 PMCID: PMC5829337 DOI: 10.1155/2018/6172954] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/31/2017] [Accepted: 01/17/2018] [Indexed: 12/14/2022]
Abstract
Photoaging occurs by UVB-irradiation and involves production of reactive oxygen species (ROS) and overexpression of matrix metalloproteinases (MMPs), leading to extracellular matrix damage. Piper retrofractum Vahl. is used as a traditional medicine for antiflatulence, expectorant, sedative, and anti-irritant; however, its antiphotoaging effect has not yet been studied. The current study investigated the antiphotoaging effect of standardized Piper retrofractum extract (PRE) on UVB-damaged human dermal fibroblasts and hairless mouse skin. PRE treatment activated the peroxisome proliferator-activated receptor delta (PPARδ) and the adenosine monophosphate-activated protein kinase (AMPK), consequently upregulating mitochondrial synthesis and reducing ROS production. Additionally, PRE inhibited MMPs expression via suppressing mitogen-activated protein kinase (MAPK) and activator protein-1 (AP-1). PRE downregulated UVB-induced inflammatory reactions by inhibiting the nuclear factor-kappa B (NF-κB) activity. PRE also enhanced transforming growth factor-beta (TGF-β) and the Smad signaling pathway, thereby promoting procollagen gene transcription. Furthermore, oral administration of PRE (300 mg/kg/day) similarly regulated the signaling pathways and increased antioxidant enzyme expression, thus attenuating physiological deformations, such as wrinkle formation and erythema response. Collectively, these results suggest that PRE acts as a potent antiphotoaging agent via PPARδ and AMPK activation.
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Kang X, Chen H, Li S, Jie L, Hu J, Wang X, Qi J, Ying X, Du Y. Magnesium lithospermate B loaded PEGylated solid lipid nanoparticles for improved oral bioavailability. Colloids Surf B Biointerfaces 2018; 161:597-605. [DOI: 10.1016/j.colsurfb.2017.11.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 10/31/2017] [Accepted: 11/02/2017] [Indexed: 10/18/2022]
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12
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Laurenti M, Al Subaie A, Abdallah MN, Cortes ARG, Ackerman JL, Vali H, Basu K, Zhang YL, Murshed M, Strandman S, Zhu J, Makhoul N, Barralet JE, Tamimi F. Two-Dimensional Magnesium Phosphate Nanosheets Form Highly Thixotropic Gels That Up-Regulate Bone Formation. NANO LETTERS 2016; 16:4779-4787. [PMID: 27280476 DOI: 10.1021/acs.nanolett.6b00636] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hydrogels composed of two-dimensional (2D) nanomaterials have become an important alternative to replace traditional inorganic scaffolds for tissue engineering. Here, we describe a novel nanocrystalline material with 2D morphology that was synthesized by tuning the crystallization of the sodium-magnesium-phosphate system. We discovered that the sodium ion can regulate the precipitation of magnesium phosphate by interacting with the crystal's surface causing a preferential crystal growth that results in 2D morphology. The 2D nanomaterial gave rise to a physical hydrogel that presented extreme thixotropy, injectability, biocompatibility, bioresorption, and long-term stability. The nanocrystalline material was characterized in vitro and in vivo and we discovered that it presented unique biological properties. Magnesium phosphate nanosheets accelerated bone healing and osseointegration by enhancing collagen formation, osteoblasts differentiation, and osteoclasts proliferation through up-regulation of COL1A1, RunX2, ALP, OCN, and OPN. In summary, the 2D magnesium phosphate nanosheets could bring a paradigm shift in the field of minimally invasive orthopedic and craniofacial interventions because it is the only material available that can be injected through high gauge needles into bone defects in order to accelerate bone healing and osseointegration.
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Affiliation(s)
| | - Ahmed Al Subaie
- College of Dentistry, University of Dammam , P.O. Box 1982, Dammam 31441, Saudi Arabia
| | | | - Arthur R G Cortes
- Biomaterials Laboratory, Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School , 73 High Street, Charlestown, Massachusetts 02129, United States
| | - Jerome L Ackerman
- Biomaterials Laboratory, Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School , 73 High Street, Charlestown, Massachusetts 02129, United States
| | | | | | - Yu Ling Zhang
- Department of Surgery, Montreal General Hospital, Faculty of Medicine, McGill University , 1650 Cedar Avenue, H3G 1A4, Montreal, Quebec, Canada
| | | | - Satu Strandman
- Department of Chemistry, Université de Montreal , C.P. 6128, Succursale Centre-Ville, H3C 3J7, Montreal, Quebec, Canada
| | - Julian Zhu
- Department of Chemistry, Université de Montreal , C.P. 6128, Succursale Centre-Ville, H3C 3J7, Montreal, Quebec, Canada
| | | | - Jake E Barralet
- Department of Surgery, Montreal General Hospital, Faculty of Medicine, McGill University , 1650 Cedar Avenue, H3G 1A4, Montreal, Quebec, Canada
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