1
|
Ding C, Liu X, Zhang S, Sun S, Yang J, Chai G, Wang N, Ma S, Ding Q, Liu W. Multifunctional hydrogel bioscaffolds based on polysaccharide to promote wound healing: A review. Int J Biol Macromol 2024; 259:129356. [PMID: 38218300 DOI: 10.1016/j.ijbiomac.2024.129356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/24/2023] [Accepted: 01/07/2024] [Indexed: 01/15/2024]
Abstract
Various types of skin wounds pose challenges in terms of healing and susceptibility to infection, which can have a significant impact on physical and mental well-being, and in severe cases, may result in amputation. Conventional wound dressings often fail to provide optimal support for these wounds, thereby impeding the healing process. As a result, there has been considerable interest in the development of multifunctional polymer matrix hydrogel scaffolds for wound healing. This review offers a comprehensive review of the characteristics of polysaccharide-based hydrogel scaffolds, as well as their applications in different types of wounds. Additionally, it evaluates the advantages and disadvantages associated with various types of multifunctional polymer and polysaccharide-based hydrogel scaffolds. The objective is to provide a theoretical foundation for the utilization of multifunctional hydrogel scaffolds in promoting wound healing.
Collapse
Affiliation(s)
- Chuanbo Ding
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Xinglong Liu
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Shuai Zhang
- Jilin Agricultural University, Changchun 130118, China
| | - Shuwen Sun
- Jilin Agricultural University, Changchun 130118, China
| | - Jiali Yang
- Jilin Agricultural University, Changchun 130118, China
| | - Guodong Chai
- Jilin Agricultural University, Changchun 130118, China
| | - Ning Wang
- Jilin Agricultural University, Changchun 130118, China
| | - Shuang Ma
- Jilin Agricultural University, Changchun 130118, China
| | - Qiteng Ding
- Jilin Agricultural University, Changchun 130118, China; Scientific and Technological Innovation Center of Health Products and Medical Materials with Characteristic Resources of Jilin Province, Changchun 130118, China.
| | - Wencong Liu
- School of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou 543002, China.
| |
Collapse
|
2
|
Vijay K, Ambedkar R, Sowmya PRR, Ramaiah S, Ranga Rao A, Gundamaraju R, Hanumanthappa M, Malarvili MB, Manikam R, Lakshminarayana R. Prevention of aspirin-mediated secondary toxicity by combined treatment of carotenoids in macrophages. 3 Biotech 2023; 13:223. [PMID: 37292139 PMCID: PMC10244315 DOI: 10.1007/s13205-023-03632-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 04/26/2023] [Indexed: 06/10/2023] Open
Abstract
Upon understanding the boosting role of carotenoids on the endogenous anti-inflammatory system, it is vital to explore their role in reducing the use of high doses of non-steroidal anti-inflammatory drug (NSAIDs), and their mediated secondary toxicity during the treatment of chronic diseases. The current study investigates the carotenoids potential on inhibition of secondary complications induced by NSAIDs, aspirin (ASA) against lipopolysaccharide (LPS) stimulated inflammation. Initially, this study evaluated a minimal cytotoxic dose of ASA and carotenoids (β-carotene, BC/lutein, LUT/astaxanthin, AST/fucoxanthin FUCO) in Raw 264.7, U937, and peripheral blood mononuclear cells (PBMCs). In all three cells, carotenoids + ASA treatment reduced the LDH release, NO, and PGE2 efficiently than an equivalent dose of carotenoid or ASA treated alone. Based on cytotoxicity and sensitivity results, RAW 264.7 cells were selected for further cell-based assay. Among carotenoids, FUCO + ASA exhibited an efficient reduction of LDH release, NO, and PGE2 than the other carotenoids (BC + ASA, LUT + ASA, and AST + ASA) treatment. FUCO + ASA combination decreased LPS/ASA induced oxidative stress, pro-inflammatory mediators (iNOS, COX-2, and NF-κB), and cytokines (IL-6, TNF-α, and IL-1β) efficiently. Further, apoptosis was inhibited by 69.2% in FUCO + ASA, and 46.7% in ASA than LPS treated cells. A drastic decrease in intracellular ROS generation with the increase in GSH was observed in FUCO + ASA compared to LPS/ASA groups. The results documented on the low dose of ASA with a relative physiological concentration of FUCO suggested greater importance for alleviating secondary complications and optimize prolonged chronic disease treatments with NSAID's associated side effects. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03632-w.
Collapse
Affiliation(s)
- Kariyappa Vijay
- Department of Microbiology and Biotechnology, Jnana Bharathi Campus, Bangalore University, Bangalore, 560 056 India
| | - Rudrappa Ambedkar
- Department of Microbiology and Biotechnology, Jnana Bharathi Campus, Bangalore University, Bangalore, 560 056 India
| | | | - Suresh Ramaiah
- Department of Statistics, Jnana Bharathi Campus, Bangalore University, Bangalore, 560 056 India
| | - Ambati Ranga Rao
- Department of Biotechnology, Vignan’s Foundation of Science, Technology and Research (Deemed to be University), Vadlamudi, Guntur, Andhra Pradesh 522213 India
| | - Rohit Gundamaraju
- ER Stress and Mucosal Immunology Lab, School of Health Sciences, University of Tasmania, Launceston, TAS 7248 Australia
| | - Manjunatha Hanumanthappa
- Department of Biochemistry, Jnana Bharathi Campus, Bangalore University, Bangalore, 560 056 India
| | - M. B. Malarvili
- Trauma and Emergency, University of Malaya, Kuala Lumpur, Malaysia
| | - Rishya Manikam
- School of Biomedical and Health Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor Bahru Malaysia
| | - Rangaswamy Lakshminarayana
- Department of Microbiology and Biotechnology, Jnana Bharathi Campus, Bangalore University, Bangalore, 560 056 India
| |
Collapse
|
3
|
Ju J, Kim J, Choi Y, Jin S, Kim S, Son D, Shin M. Punicalagin-Loaded Alginate/Chitosan-Gallol Hydrogels for Efficient Wound Repair and Hemostasis. Polymers (Basel) 2022; 14:polym14163248. [PMID: 36015503 PMCID: PMC9416046 DOI: 10.3390/polym14163248] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/29/2022] [Accepted: 08/08/2022] [Indexed: 12/29/2022] Open
Abstract
For recently devised wound-healing materials, a variety of acute application systems with sustainable therapeutic effects on wound sites have been suggested. For example, hydrogel-type healing agents with porous structures and high drug encapsulation efficiencies have been developed for wound repair. However, challenges remain about the poor mechanical and adhesive properties of hydrogels. Herein, we propose a punicalagin (PC)-containing wound-healing hydrogel in adhesive form that is mechanically stable and has sustainable wound-healing therapeutic efficiency. The APC hydrogel, composed of alginate (ALG), PC, and chitosan–gallol (CHI–G), exhibits significant mechanical and self-healing properties, thus indicating that PC increases cross-linking in ALG/CHI–G as macromolecule. The PC-containing mechanically enhanced hydrogel demonstrates high tissue adhesiveness. Sustainable PC release for 192 h, which indicates high therapeutic effect of the released PC, and great blood compatibility are evaluated based on rapid blood coagulation and minimal hemolysis. The cytocompatibility and wound-healing abilities of the PC-containing APC hydrogel are greater than those of the non-PC hydrogel, as verified by cell compatibility and wound scratch assays. These results indicate that a suitable concentration of PC-containing hydrogel with sustainable moisture condition and PC release may inspire further polyphenol-agent-containing hydrogels as wound-healing agents with structural stability and therapeutic efficiency.
Collapse
Affiliation(s)
- Jaewon Ju
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon 16419, Korea
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon 16419, Korea
| | - Jungwoo Kim
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon 16419, Korea
| | - Yeonsun Choi
- Department of Biomedical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea
| | - Subin Jin
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon 16419, Korea
| | - Sumin Kim
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon 16419, Korea
| | - Donghee Son
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon 16419, Korea
- Department of Electrical and Computer Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea
- Department of Superintelligence Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea
- Correspondence: (D.S.); (M.S.)
| | - Mikyung Shin
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon 16419, Korea
- Center for Neuroscience Imaging Research, Institute for Basic Science (IBS), Suwon 16419, Korea
- Department of Biomedical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea
- Correspondence: (D.S.); (M.S.)
| |
Collapse
|
4
|
Okaiyeto K, Falade AO, Oguntibeju OO. Traditional Uses, Nutritional and Pharmacological Potentials of Clerodendrum volubile. PLANTS 2021; 10:plants10091893. [PMID: 34579425 PMCID: PMC8472598 DOI: 10.3390/plants10091893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/16/2021] [Accepted: 08/17/2021] [Indexed: 11/30/2022]
Abstract
Clerodendrum volubile is an underutilized leafy vegetable consumed in some parts of Nigeria. The interest in C. volubile has continued to increase due to its multipurpose values, including traditional uses, nutritional properties, and some therapeutic potentials; however, the pharmacological prospects of the plant are yet to be fully explored. Therefore, in the present review, different databases such as PubMed, Scopus, Web of Science, Google Scholar, etc. were explored to retrieve publications used to write this review. The pharmacological potentials of C. volubile, such as anticancer, antioxidant, antiviral, antimicrobial, anti-inflammatory, hepatoprotective, antidiabetic, and anti-hypertensive properties, were highlighted. The toxicological potential of the plant is also discussed. Proposed mechanisms that underline its biological activities include modulation of redox homeostasis, leading to decreased oxidative stress; down-regulation of matrix metalloproteinase-9 (MMP-9) expression; inhibition of key enzymes implicated in diabetes mellitus, hypertension, and neurological diseases; and inhibition of oxidative burst and inflammatory cytokines. Furthermore, the prospect of endophytes from C. volubile as a bioresource to produce novel therapeutic agents, as well as the development of nanotherapeutics from the plant extracts and its phytoconstituents, are discussed. In conclusion, C. volubile possesses an enormous number of possible pharmacological properties and therapeutic potentials waiting to be explored.
Collapse
Affiliation(s)
- Kunle Okaiyeto
- Phytomedicine and Phytochemistry Group, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville 7535, South Africa;
| | - Ayodeji Osmund Falade
- Department of Biochemistry, Faculty of Basic Medical Sciences, University of Medical Sciences, Ondo 351101, Ondo State, Nigeria;
| | - Oluwafemi Omoniyi Oguntibeju
- Phytomedicine and Phytochemistry Group, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville 7535, South Africa;
- Correspondence:
| |
Collapse
|
5
|
Costa R, Costa Lima SA, Gameiro P, Reis S. On the Development of a Cutaneous Flavonoid Delivery System: Advances and Limitations. Antioxidants (Basel) 2021; 10:1376. [PMID: 34573007 PMCID: PMC8472229 DOI: 10.3390/antiox10091376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/09/2021] [Accepted: 08/19/2021] [Indexed: 12/11/2022] Open
Abstract
Flavonoids are one of the vital classes of natural polyphenolic compounds abundantly found in plants. Due to their wide range of therapeutic properties, which include antioxidant, anti-inflammatory, photoprotective, and depigmentation effects, flavonoids have been demonstrated to be promising agents in the treatment of several skin disorders. However, their lipophilic nature and poor water solubility invariably lead to limited oral bioavailability. In addition, they are rapidly degraded and metabolized in the human body, hindering their potential contribution to the prevention and treatment of many disorders. Thus, to overcome these challenges, several cutaneous delivery systems have been extensively studied. Topical drug delivery besides offering an alternative administration route also ensures a sustained release of the active compound at the desired site of action. Incorporation into lipid or polymer-based nanoparticles appears to be a highly effective approach for cutaneous delivery of flavonoids with good encapsulation potential and reduced toxicity. This review focuses on currently available formulations used to administer either topically or systemically different classes of flavonoids in the skin, highlighting their potential application as therapeutic and preventive agents.
Collapse
Affiliation(s)
- Raquel Costa
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal; (R.C.); (S.A.C.L.)
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal;
| | - Sofia A. Costa Lima
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal; (R.C.); (S.A.C.L.)
| | - Paula Gameiro
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal;
| | - Salette Reis
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal; (R.C.); (S.A.C.L.)
| |
Collapse
|
6
|
Polyphenolic Characterization of Merlot, Tannat and Syrah Skin Extracts at Different Degrees of Maturity and Anti-Inflammatory Potential in RAW 264.7 Cells. Foods 2021; 10:foods10030541. [PMID: 33807735 PMCID: PMC7998996 DOI: 10.3390/foods10030541] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 02/26/2021] [Accepted: 02/28/2021] [Indexed: 11/17/2022] Open
Abstract
(1) Background: Both sensory quality and healthy attributes of Vitis vinifera grapes used for winemaking are closely related with the polyphenolic composition of their skins. (2) Methods: In this study, the polyphenolic characterization (flavan-3-ols, procyanidins, flavonols, stilbenes, anthocyanins) was investigated by ultra performance liquid chromatography coupled to a triple quadrupole mass spectrometer (UPLC-QqQ-MS). Skins from Vitis vinifera Merlot, Tannat, and Syrah red grape varieties cultivated in the south of France at different stages of ripening in 2018 were used. The anti-inflammatory and the antioxidant potential of the extracts were evaluated by the measure of nitric oxide (NO) and the intracellular reactive oxygen species production (ROS) in lipopolysaccharide (LPS)-stimulated macrophages. (3) Results: 41 polyphenols were quantified in all samples. Generally, the flavan-3-ol and procyanidin content decreased during ripening whereas the anthocyanins and stilbenes increased. In addition, as a novelty of this work, a wide identification and characterization of monomeric and oligomeric stilbenes was assessed by using authentic standards isolated in our laboratory, some of them (parthenocissin A and miyabenol C) reported for the first time in Merlot, Tannat and Syrah cultivars. The before-veraison skin extracts of all studied varieties, exhibited higher NO and ROS productions inhibition (>50%) proving both antioxidant and anti-inflammatory properties.
Collapse
|
7
|
Martins ÂM, Silva Sarto DAQ, Caproni KDP, Silva J, Silva J, Souza PS, dos Santos L, Ureña MJE, de Souza Carvalho MDG, Vilas Boas BM, Miranda LPA, Garcia JAD. Grape juice attenuates left ventricular hypertrophy in dyslipidemic mice. PLoS One 2020; 15:e0238163. [PMID: 32881885 PMCID: PMC7470265 DOI: 10.1371/journal.pone.0238163] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/11/2020] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE We evaluated the effects of grape juice (Vitis labrusca L.) on dyslipidemia, resistance to insulin, and left ventricular hypertrophy (LVH) in mice homozygous for the absence of the LDL receptor gene (LDLr -/-) under a hyperlipidemic diet. METHODOLOGY We divided 30 male mice (3 months old) into three groups (n = 10); the HL group was fed a high-fat diet, the HLU group received a high-fat diet and 2 g/kg/day of grape juice, and the HLS group was fed a high-fat diet and simvastatin (20 mg/kg/day). We assessed the blood pressure profile of the mice. We also determined the levels of C-reactive protein (CRP) and lipid profile, glycemic and insulinemic profiles, and calculated the HOMA-IR. Cardiomyocyte hypertrophy, interstitial collagen deposit, and the expression of CD40 ligand (CD40L) and metalloproteinases 2 and 9 were assessed immunohistologically. RESULTS After 60 days, the mice treated with grape juice showed similar results as those of the group treated with simvastatin. The use of grape fruit attenuated dyslipidemia and insulin resistance and significantly increased the levels of high cholesterol density lipoproteins (HDLc). The antioxidant potential of phenolic compounds associated with the increase in HDLc levels in the mice of the HLU group prevented the development of LVH and arterial hypertension since it inhibited the inflammatory response induced by the CD40 pathway and its ligand CD40L. Consequently, there was a lower expression of MMP-2 and MMP-9 and lower serum levels of CRP. CONCLUSION Grape juice has a hypolipidemic and cardiac protective potential, presenting a similar effect as that of simvastatin through a direct antioxidant action of phenolic compounds, or indirectly, via antioxidant action and anti-inflammatory activity of the HDLc. These results suggest that grape juice is a functional food possessing a high potential to prevent cardiovascular diseases.
Collapse
Affiliation(s)
- Ângela Maria Martins
- Federal Institute of Education, Science and Technology of the South of Minas Gerais, Machado, Minas Gerais, Brazil
| | | | - Karine de Paula Caproni
- Federal Institute of Education, Science and Technology of the South of Minas Gerais, Machado, Minas Gerais, Brazil
| | - Janaína Silva
- Federal Institute of Education, Science and Technology of the South of Minas Gerais, Muzambinho, Minas Gerais, Brazil
| | - Jaqueline Silva
- Federal Institute of Education, Science and Technology of the South of Minas Gerais, Muzambinho, Minas Gerais, Brazil
| | - Paulo Sérgio Souza
- Federal Institute of Education, Science and Technology of the South of Minas Gerais, Muzambinho, Minas Gerais, Brazil
| | - Leandro dos Santos
- Academic Unity of Serra Talhada, Rural Federal University of Pernambuco, Serra Talhada, Pernambuco, Brazil
| | - Marcos Javier Espino Ureña
- Autonomous University of Santo Domingo and Dominican Institute of Agricultural and Forestry Research, Santo Domingo, Dominican Republic
| | | | - Brígida Monteiro Vilas Boas
- Federal Institute of Education, Science and Technology of the South of Minas Gerais, Machado, Minas Gerais, Brazil
| | | | - José Antonio Dias Garcia
- Federal Institute of Education, Science and Technology of the South of Minas Gerais, Machado, Minas Gerais, Brazil
- José do Rosário Vellano University, Alfenas, Minas Gerais, Brazil
| |
Collapse
|
8
|
Polyphenols in Alzheimer's Disease and in the Gut-Brain Axis. Microorganisms 2020; 8:microorganisms8020199. [PMID: 32023969 PMCID: PMC7074796 DOI: 10.3390/microorganisms8020199] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/25/2020] [Accepted: 01/28/2020] [Indexed: 12/11/2022] Open
Abstract
Polyphenolic antioxidants, including dietary plant lignans, modulate the gut-brain axis, which involves transformation of these polyphenolic compounds into physiologically active and neuroprotector compounds (called human lignans) through gut bacterial metabolism. These gut bacterial metabolites exert their neuroprotective effects in various neurodegenerative diseases, such as Alzheimer's disease (AD) and Parkinson's disease (PD), and also have protective effects against other diseases, such as cardiovascular diseases, cancer, and diabetes. For example, enterolactone and enterodiol, the therapeutically relevant polyphenols, are formed as the secondary gut bacterial metabolites of lignans, the non-flavonoid polyphenolic compounds found in plant-based foods. These compounds are also acetylcholinesterase inhibitors, and thereby have potential applications as therapeutics in AD and other neurological diseases. Polyphenols are also advanced glycation end product (AGE) inhibitors (antiglycating agents), and thereby exert neuroprotective effects in cases of AD. Thus, gut bacterial metabolism of lignans and other dietary polyphenolic compounds results in the formation of neuroprotective polyphenols-some of which have enhanced blood-brain barrier permeability. It is hypothesized that gut bacterial metabolism-derived polyphenols, when combined with the nanoparticle-based blood-brain barrier (BBB)-targeted drug delivery, may prove to be effective therapeutics for various neurological disorders, including traumatic brain injury (TBI), AD, and PD. This mini-review addresses the role of polyphenolic compounds in the gut-brain axis, focusing on AD.
Collapse
|
9
|
Jiménez-Moreno N, Volpe F, Moler JA, Esparza I, Ancín-Azpilicueta C. Impact of Extraction Conditions on the Phenolic Composition and Antioxidant Capacity of Grape Stem Extracts. Antioxidants (Basel) 2019; 8:antiox8120597. [PMID: 31795232 PMCID: PMC6943662 DOI: 10.3390/antiox8120597] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/22/2019] [Accepted: 11/26/2019] [Indexed: 12/19/2022] Open
Abstract
The use of grape stems for the extraction of bioactive compounds to be used in the pharmaceutical, food, and cosmetic industries is a promising objective. The aim of this work is to determine the influence of the different extraction conditions (temperature, ethanol concentration, and ratio of sample/solvent) on phenolic composition and antioxidant capacity of Mazuelo stem extracts. In general, the ethanol concentration of the extraction solvent was the factor that had the greatest influence on the extraction of different bioactive compounds. The greatest content of total phenolic compounds and the highest antioxidant activity of the extracts were obtained with 50% ethanol and at 40 °C. The most abundant compound found in the different extracts obtained from Mazuelo grape stem was (+)-catechin, but appreciable concentrations of gallic acid, a quercetin derivative, and stilbenes (trans-resveratrol and trans-ε-viniferin) were also extracted. Quercetin and malvidin-3-glucoside showed the highest correlation with the antioxidant capacity of the extracts, while stilbenes did not present such relation. The maximum concentration of gallic acid was extracted with water but the extraction of most of the compounds was maximum on using 50% ethanol. Consequently, the selection of the extraction method to be used will depend on the particular compound to be extracted in greatest quantity.
Collapse
Affiliation(s)
- Nerea Jiménez-Moreno
- Department of Sciences, Universidad Pública de Navarra, Campus Arrosadía s/n, 31006 Pamplona, Spain; (N.J.-M.); (F.V.)
| | - Francesca Volpe
- Department of Sciences, Universidad Pública de Navarra, Campus Arrosadía s/n, 31006 Pamplona, Spain; (N.J.-M.); (F.V.)
| | - Jose Antonio Moler
- Department of Statistics and Operational Research, Universidad Pública de Navarra, Campus Arrosadía s/n, 31006 Pamplona, Spain;
| | - Irene Esparza
- Department of Sciences, Universidad Pública de Navarra, Campus Arrosadía s/n, 31006 Pamplona, Spain; (N.J.-M.); (F.V.)
- Institute for Advanced Materials (InaMat), Universidad Pública de Navarra, 31006 Pamplona, Spain
- Correspondence: (I.E.); (C.A.-A.); Tel.: +34-948-169596 (C.A.-A.)
| | - Carmen Ancín-Azpilicueta
- Department of Sciences, Universidad Pública de Navarra, Campus Arrosadía s/n, 31006 Pamplona, Spain; (N.J.-M.); (F.V.)
- Institute for Advanced Materials (InaMat), Universidad Pública de Navarra, 31006 Pamplona, Spain
- Correspondence: (I.E.); (C.A.-A.); Tel.: +34-948-169596 (C.A.-A.)
| |
Collapse
|
10
|
da Cunha LR, Muniz-Junqueira MI, Dos Santos Borges TK. Impact of polyphenols in phagocyte functions. J Inflamm Res 2019; 12:205-217. [PMID: 31686890 PMCID: PMC6708886 DOI: 10.2147/jir.s193749] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 04/10/2019] [Indexed: 12/30/2022] Open
Abstract
Polyphenols are a broad group of substances with potential health benefits found in plant species. Several of these compounds are capable of influencing the activation of intracellular signaling pathways, such as NF-kB, MAPK and JAK-STAT, responsible for the production of various inflammatory mediators such as tumor necrosis factor α (TNF-α) and interleukin 1 beta (IL-1β) and 12 (IL-12), enzymes involved in the production of reactive species such as inducible nitric oxide synthase (iNOS) and superoxide dehydrogenase (SOD), as well as enzymes involved in the production of eicosanoids, such as cyclooxygenase (COX) and lipoxygenase (LO). There is increased interest in the use of polyphenol-rich foods because of their immunomodulatory effect; however, the mechanisms used during macrophage responses are extremely complex and little is known about the effects of polyphenols on these cells. As such, this review summarizes the current view of polyphenol influences on macrophages.
Collapse
Affiliation(s)
- Leandro Rodrigues da Cunha
- Laboratory of Cellular Immunology, Pathology, Faculty of Medicine, University of Brasilia, Brasília, Brazil
| | | | | |
Collapse
|
11
|
Immunomodulatory effect of natural flavonoid chrysin (5, 7-dihydroxyflavone) on LPS stimulated RAW 264.7 macrophages via inhibition of NF-κB activation. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
12
|
Thomas A, South S, Vijayagopal P, Juma S. Effect of Tart Cherry Polyphenols on Osteoclast Differentiation and Activity. J Med Food 2019; 23:56-64. [PMID: 31436500 DOI: 10.1089/jmf.2019.0050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Bone is maintained by an intricate balance between bone formation and bone resorption. The presence of inflammation can contribute to an imbalance in bone homeostasis by enhancing differentiation and activity of osteoclasts, the cells that participate in the breakdown of bone. Polyphenols such as flavonoids found in plant-derived foods have been shown to have anti-inflammatory effects in various tissues. Tart cherries are a rich source of such polyphenolic compounds. Using mouse macrophage cells (RAW 264.7), we examined whether tart cherry polyphenols could dose dependently inhibit the proliferation and activity of receptor activator of nuclear factor kappa-B ligand (RANKL) differentiated osteoclasts under inflammatory conditions. Tartrate-resistant acid phosphatase (TRAP) activity and staining of TRAP-positive multinucleated cells, used as indicators of osteoclast differentiation and activity, tended to decrease with tart cherry polyphenols treatment. Osteoprotegerin expression by osteoclasts was decreased in a similar manner. A significant increase in nitrite concentration was observed with the lower doses of tart cherry polyphenols of 50 and 100 μg/mL (P < .05). However, higher doses of tart cherry polyphenols (200 and 300 μg/mL) reduced nitrite concentrations below that of the control that received no tart cherry polyphenols treatment (P < .05). Western blot analyses showed that protein expression of cyclooxygenase-2 (COX-2) followed a similar trend, although results were not statistically significant. On the other hand, tart cherry polyphenols treatments dose dependently increased inducible nitric oxide synthase protein expression, with statistical significance noted at doses of 200 and 300 μg/mL. Overall, our findings suggest that the polyphenols associated with tart cherries potentially inhibit osteoclast differentiation and activity, which may be beneficial to bone health.
Collapse
Affiliation(s)
- Amber Thomas
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas, USA
| | - Sanique South
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas, USA
| | - Parakat Vijayagopal
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas, USA
| | - Shanil Juma
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas, USA
| |
Collapse
|
13
|
Hahn M, Baierle M, Charão MF, Bubols GB, Gravina FS, Zielinsky P, Arbo MD, Cristina Garcia S. Polyphenol-rich food general and on pregnancy effects: a review. Drug Chem Toxicol 2016; 40:368-374. [DOI: 10.1080/01480545.2016.1212365] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Marla Hahn
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
| | - Marília Baierle
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
- Post-Graduate Program in Pharmaceutical Sciences (PPGCF), Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
| | - Mariele F. Charão
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
- Toxicological Analysis Laboratory, Institute of Health Sciences, Feevale University, Novo Hamburgo, RS, Brazil,
| | - Guilherme B. Bubols
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
- Post-Graduate Program in Pharmaceutical Sciences (PPGCF), Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
| | - Fernanda S. Gravina
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
| | - Paulo Zielinsky
- Cardiology Institute, University Foundation of Cardiology, Porto Alegre, RS, Brazil, and
| | - Marcelo D. Arbo
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
- Post-Graduate Program in Pharmaceutical Sciences (PPGCF), Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
- Department of Veterinary Clinical Pathology, Faculty of Veterinary, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Solange Cristina Garcia
- Laboratory of Toxicology (LATOX), Department of Analysis, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
- Post-Graduate Program in Pharmaceutical Sciences (PPGCF), Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil,
- Cardiology Institute, University Foundation of Cardiology, Porto Alegre, RS, Brazil, and
| |
Collapse
|
14
|
Tea Consumption and Cognitive Impairment: A Cross-Sectional Study among Chinese Elderly. PLoS One 2015; 10:e0137781. [PMID: 26359663 PMCID: PMC4567322 DOI: 10.1371/journal.pone.0137781] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 08/21/2015] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Laboratorial and epidemiological researches suggested that tea exhibited potential neuroprotective effect which may prevent cognitive impairment, but there were few data among the elderly aged 60 years and above in China. OBJECTIVE The objective was to explore the relationship between characteristics of tea consumption and cognitive impairment. DESIGN We analyzed the baseline data from Zhejiang Major Public Health Surveillance Program (ZPHS) which was conducted in 2014. Totally 9,375 residents aged 60 years and above were recruited in this study. Face-to-face interview based on a self-developed questionnaire was performed for each participant. Detailed tea consumption habits were included in the questionnaire. Cognitive impairment screening was performed by using Mini-Mental State Examination (MMSE). Education-specific cut-off points for Chinese were applied to determine the status of cognitive impairment. Logistic regression analysis was used to calculate odds ratios (ORs) of cognitive impairment associated with tea consumption. RESULTS The means (SD) of MMSE scores for the subjects who did not consume tea and consumed <2 cups/d, 2-4 cups/d, ≥4 cups/d were 23.3 (SD = 5.61), 23.8 (SD = 5.60), 24.5 (SD = 5.63) and 25.0 (SD = 5.08), respectively. An inverse correlation was found between tea consumption (of all types) and prevalence of cognitive impairment. Volume of tea consumption was significantly associated with cognitive impairment: compared with non-consumption participants, those who consumed < 2 cups/d, 2-4 cups/d, and ≥4 cups/d were observed ORs of 0.77 (95% CI: 0.56, 1.07), 0.62 (95% CI: 0.47, 0.81), and 0.49 (95% CI: 0.36, 0.66), respectively. Compared with non-consumption, black tea presented a positive correlation with cognitive function after controlling for potential confounders (OR = 0.52, 95% CI: 0.28, 0.95), while green tea showed no significant difference (OR = 1.04, 95% CI: 0.72, 1.51). Participants who consumed weak tea, moderate tea or strong tea more often were observed a better cognitive status when compared with those who did not have tea, with an OR of 0.51 (95% CI: 0.28, 0.92), 0.32 (95% CI: 0.19, 0.56) and 0.42 (95% CI: 0.22, 0.78) after adjusting for the potential confounders. But there was no statistically significant difference between any two of these ORs. CONCLUSION Black tea consumption was association with better cognitive performance among the elderly aged 60 years and above in China, while green tea presented no correlation. The positive association of cognitive status with tea consumption was not limited to particular type of concentration.
Collapse
|
15
|
Antioxidant and anti-inflammatory activities of 3,5-dicaffeoylquinic acid isolated from Ligularia fischeri leaves. Food Sci Biotechnol 2015. [DOI: 10.1007/s10068-015-0034-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
16
|
Ballmann C, Hollinger K, Selsby JT, Amin R, Quindry JC. Histological and biochemical outcomes of cardiac pathology in mdx mice with dietary quercetin enrichment. Exp Physiol 2014; 100:12-22. [PMID: 25557727 DOI: 10.1113/expphysiol.2014.083360] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 10/22/2014] [Indexed: 01/30/2023]
Abstract
NEW FINDINGS What is the central question of this study? Does dietary quercetin enrichment improve biochemical and histological outcomes in hearts from mdx mice? What is the main finding and what is its importance? Biochemical and histological findings suggest that chronic quercetin feeding of mdx mice may improve mitochondrial function and attenuate tissue pathology. Patients with Duchenne muscular dystrophy suffer from cardiac pathology, which causes up to 40% of all deaths because of fibrosis and cardiac complications. Quercetin is a flavonol with anti-inflammatory and antioxidant effects and is also an activator of peroxisome proliferator-activated receptor γ coactivator 1α capable of antioxidant upregulation, mitochondrial biogenesis and prevention of cardiac complications. We sought to determine the extent to which dietary quercetin enrichment prevents (experiment 1) and rescues cardiac pathology (experiment 2) in mdx mice. In experiment 1, 3-week-old mdx mice were fed control chow (C3w6m, n = 10) or chow containing 0.2% quercetin for 6 months (Q3w6m, n = 10). In experiment 2, 3-month-old mdx mice were fed control chow (C3m6m, n = 10) or 0.2% chow containing 0.2% quercetin for 6 months (Q3m6m, n = 10). Hearts were excised for histological and biochemical analyses. In experiment 1, Western blot targets for mitochondrial biogenesis (cytochrome c, P = 0.007) and antioxidant expression (superoxide dismutase 2, P = 0.014) increased in Q3w6m mice compared with C3w6m. Histology revealed increased utrophin (P = 0.025) and decreased matrix metalloproteinase 9 abundance (P = 0.040) in Q3w6m mice compared with C3w6m. In experiment 2, relative (P = 0.023) and absolute heart weights (P = 0.020) decreased in Q3m6m mice compared with C3m6m. Indications of damage (Haematoxylin- and Eosin-stained sections, P = 0.007) and Western blot analysis of transforming growth factor β1 (P = 0.009) were decreased in Q3m6m mice. Six months of quercetin feeding increased a mitochondrial biomarker, antioxidant protein and utrophin and decreased matrix metalloproteinase 9 in young mice. Given that these adaptations are associated with attenuated cardiac pathology and damage, the present findings may indicate that dietary quercetin enrichment attenuates dystrophic cardiac pathology, but physiological confirmation is needed.
Collapse
|
17
|
Hollinger K, Shanely RA, Quindry JC, Selsby JT. Long-term quercetin dietary enrichment decreases muscle injury in mdx mice. Clin Nutr 2014; 34:515-22. [PMID: 24998094 DOI: 10.1016/j.clnu.2014.06.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 05/07/2014] [Accepted: 06/10/2014] [Indexed: 11/16/2022]
Abstract
BACKGROUND & AIMS Duchenne muscular dystrophy results from a mutation in the dystrophin gene, which leads to a dystrophin-deficiency. Dystrophic muscle is marked by progressive muscle injury and loss of muscle fibers. Activation of the PGC-1α pathway has been previously shown to decrease disease-related muscle damage. Oral administration of the flavonol, quercetin, appears to be an effective and safe method to activate the PGC-1α pathway. The aim of this investigation was to determine the extent to which long term dietary quercetin enrichment would decrease muscle injury in dystrophic skeletal muscle. We hypothesized that a quercetin enriched diet would rescue dystrophic muscle from further decline and increase utrophin abundance. METHODS Beginning at three-months of age and continuing to nine-months of age mdx mice (n = 10/group) were assigned to either to mdx-control receiving standard chow or to mdx-quercetin receiving a 0.2% quercetin-enriched diet. At nine-months of age mice were sacrificed and costal diaphragms collected. One hemidiaphragm was used for histological analysis and the second hemidiaphragm was used to determine gene expression via RT-qPCR. RESULTS The diaphragm from the mdx-quercetin group had 24% (p ≤ 0.05) more muscle fibers/area and 34% (p ≤ 0.05) fewer centrally nucleated fibers compared to the mdx-control group. Further, there were 44% (p ≤ 0.05) fewer infiltrating immune cells/area, a corresponding 31% (p ≤ 0.05) reduction in TNF gene expression, and a near 50% reduction in fibrosis. The quercetin-enriched diet increased expression of genes associated with oxidative metabolism but did not increase utrophin protein abundance. CONCLUSIONS Long-term quercetin supplementation decreased disease-related muscle injury in dystrophic skeletal muscle; however the role of PGC-1α pathway activation as a mediator of this response is unclear.
Collapse
Affiliation(s)
- Katrin Hollinger
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA
| | - R Andrew Shanely
- Human Performance Laboratory, Appalachian State University, North Carolina Research Campus, Kannapolis, NC 28081, USA; Appalachian State University, College of Health Sciences, Boone, NC, USA
| | - John C Quindry
- School of Kinesiology, Auburn University, Auburn, AL 36849, USA
| | - Joshua T Selsby
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA.
| |
Collapse
|
18
|
Joo T, Sowndhararajan K, Hong S, Lee J, Park SY, Kim S, Jhoo JW. Inhibition of nitric oxide production in LPS-stimulated RAW 264.7 cells by stem bark of Ulmus pumila L. Saudi J Biol Sci 2014; 21:427-35. [PMID: 25313277 DOI: 10.1016/j.sjbs.2014.04.003] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/23/2014] [Accepted: 04/23/2014] [Indexed: 11/28/2022] Open
Abstract
This study was designed to isolate and identify a potent inhibitory compound against nitric oxide (NO) production from the stem bark of Ulmus pumila L. Ethyl acetate fraction of hot water extract registered a higher level of total phenolics (756.93 mg GAE/g) and also showed strong DPPH (IC50 at 5.6 μg/mL) and ABTS (TEAC value 0.9703) radical scavenging activities than other fractions. Crude extract and its fractions significantly decreased nitrite accumulation in LPS-stimulated RAW 264.7 cells indicating that they potentially inhibited the NO production in a concentration dependent manner. Based on higher inhibitory activity, the ethyl acetate fraction was subjected to Sephadex LH-20 column chromatography and yielded seven fractions and all these fractions registered appreciable levels of inhibitory activity on NO production. The most effective fraction F1 was further purified and subjected to (1)H, (13)C-NMR and mass spectrometry analysis and the compound was identified as icariside E4. The results suggest that the U. pumila extract and the isolated compound icariside E4 effectively inhibited the NO production and may be useful in preventing inflammatory diseases mediated by excessive production of NO.
Collapse
Affiliation(s)
- Taewoo Joo
- Kangwon National University, Department of Animal Products and Food Science, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Kandhasamy Sowndhararajan
- Kangwon National University, Department of Biological Environment, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Sunghyun Hong
- Kangwon National University, Department of Animal Products and Food Science, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Jaehak Lee
- Kangwon National University, Department of Animal Products and Food Science, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Sun-Young Park
- CodeBio Co., Ltd, Seobuk-gu Busong 72-14, Cheonan, Chungnam 331-815, Republic of Korea
| | - Songmun Kim
- Kangwon National University, Department of Biological Environment, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Jin-Woo Jhoo
- Kangwon National University, Department of Animal Products and Food Science, Chuncheon, Gangwon 200-701, Republic of Korea
| |
Collapse
|
19
|
Vinayachandra, Chandrashekar KR. Phenolic Contents ofKnema attenuataFruits and their Bioactive Potentials. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/10496475.2013.848390] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
20
|
On the molecular pharmacology of resveratrol on oxidative burst inhibition in professional phagocytes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:706269. [PMID: 24672638 PMCID: PMC3942095 DOI: 10.1155/2014/706269] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 12/12/2013] [Accepted: 12/17/2013] [Indexed: 01/15/2023]
Abstract
Resveratrol—3,5,4′-trihydroxystilbene—possesses antioxidant activities in vitro. It dose-dependently inhibited the generation of peroxyl, hydroxyl, peroxides, and lipid peroxidation products in cell free systems. Oxidative burst of whole human blood stimulated with PMA, fMLP, OpZ, and A23187 was inhibited in a concentration-dependent way, indicating suppression of both receptor and nonreceptor activated chemiluminescence by resveratrol. Results from isolated human neutrophils revealed that resveratrol was active extracellularly as well as intracellularly in inhibiting the generation of reactive oxygen species. Liberation of ATP and analysis of apoptosis showed that in the concentration of 100 μM, resveratrol did not change the viability and integrity of isolated neutrophils. Western blot analysis documented that resveratrol in concentrations of 10 and 100 μM significantly decreased PMA-induced phosphorylation of PKC α/βII. Dose-dependent inhibition of nitrite production and iNOS protein expression in RAW 264.7 cells indicated possible interference of resveratrol with reactive nitrogen radical generation in professional phagocytes. The results suggest that resveratrol represents an effective naturally occurring substance with potent pharmacological effect on oxidative burst of human neutrophils and nitric oxide production by macrophages. It should be further investigated for its pharmacological activity against oxidative stress in ischaemia reperfusion, inflammation, and other pathological conditions, particularly neoplasia.
Collapse
|
21
|
The natural stilbenoid piceatannol decreases activity and accelerates apoptosis of human neutrophils: involvement of protein kinase C. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2013; 2013:136539. [PMID: 24288583 PMCID: PMC3833065 DOI: 10.1155/2013/136539] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 09/11/2013] [Indexed: 02/01/2023]
Abstract
Neutrophils are able to release cytotoxic substances and inflammatory mediators, which, along with their delayed apoptosis, have a potential to maintain permanent inflammation. Therefore, treatment of diseases associated with chronic inflammation should be focused on neutrophils; formation of reactive oxygen species and apoptosis of these cells represent two promising targets for pharmacological intervention.
Piceatannol, a naturally occurring stilbenoid, has the ability to reduce the toxic action of neutrophils. This substance decreased the amount of oxidants produced by neutrophils both extra- and intracellularly. Radicals formed within neutrophils (fulfilling a regulatory role) were reduced to a lesser extent than extracellular oxidants, potentially dangerous for host tissues. Moreover, piceatannol did not affect the phosphorylation of p40phox—a component of NADPH oxidase, responsible for the assembly of functional oxidase in intracellular (granular) membranes. The stilbenoid tested elevated the percentage of early apoptotic neutrophils, inhibited the activity of protein kinase C (PKC)—the main regulatory enzyme in neutrophils, and reduced phosphorylation of PKC isoforms α, βII, and δ on their catalytic region.
The results indicated that piceatannol may be useful as a complementary medicine in states associated with persisting neutrophil activation and with oxidative damage of tissues.
Collapse
|
22
|
Sánchez-Fidalgo S, da Silva MS, Cárdeno A, Aparicio-Soto M, Salvador MJ, Frankland Sawaya ACH, Souza-Brito ARM, de la Lastra CA. Abarema cochliacarpos reduces LPS-induced inflammatory response in murine peritoneal macrophages regulating ROS-MAPK signal pathway. JOURNAL OF ETHNOPHARMACOLOGY 2013; 149:140-147. [PMID: 23792124 DOI: 10.1016/j.jep.2013.06.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 05/07/2013] [Accepted: 06/01/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Abarema cochliacarpos (Gomes) Barneby and Grimes (Fabaceae), known by the vulgar name of Babatenã, has been traditionally used in Northeast Brazil, as an anti-inflammatory remedy. Previous studies have demonstrated its anti-inflammatory and antiulcer effects in skin lesion, alcohol gastric ulcer and acute and chronic colitis. AIMS The present study was designed to evaluate the antioxidant and anti-inflammatory effects of the butanolic fraction from A. cochliacarpos (BFAC) and its major flavonoid, (+)-catechin, in LPS-stimulated murine peritoneal macrophages. Moreover, we studied the role of mitogen-activated protein kinase (MAPK)s and NF-kB signaling pathways possibly involved in the beneficial effects. MATERIALS AND METHODS The quantification of the extract was carried out by ultra-performance liquid chromatography analysis. Cell viability was determined using SRB assay. Nitric oxide (NO) production was analyzed by Griess method and intracellular reactive oxygen species (ROS) by fluorescence analysis. In addition, cyclooxygenase (COX-2) and inducible nitric oxide synthase (iNOS) expression, MAPK activation and IkappaBalpha (IKBα) degradation, were determined by Western blot. RESULTS After BFAC characterization, (+)-catechin was revealed as its major constituent. Both BFAC and (+)-catechin, exerted significant anti-oxidant and anti-inflammatory effects inhibiting LPS-induced intracellular ROS and NO production in peritoneal macrophages. Additionally, the extract but also its major component reduced pro-inflammatory proteins expression probably through c-Jun N-terminal kinase and p38 MAPK signaling pathways. CONCLUSION These data suggest that the beneficial effects of BFAC might be mediated, at least in part, by the presence of (+)-catechin. Conclusively our findings confirm the potential of A. cochliacarpos as a new therapeutic strategy for the management of inflammatory and oxidative stress-related diseases.
Collapse
Affiliation(s)
- S Sánchez-Fidalgo
- Department Pharmacology, School of Pharmacy, University of Seville, Spain
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Abstract
Objective Interleukin-1β (IL-1β) plays an important role in the development of type 1 and type 2 diabetes mellitus. Resveratrol, a polyphenol, is known to have a wide range of pharmacological properties in vitro. In this research, we examined the effects of resveratrol on IL-1β-induced β-cell dysfunction. Methods We first evaluated the effect of resveratrol on nitric oxide (NO) formation in RINm5F cells stimulated with IL-1β using the Griess method. Next, we performed transient transfection and reporter assays to measure the transcriptional activity of peroxisome proliferator-activated receptor-γ (PPAR-γ). We also used Western blotting analysis to assess the effect of resveratrol on inducible nitric oxide synthase (iNOS) expression and nuclear factor-κB (NF-κB) translocation to the nuclei in cells treated with IL-1β. In addition, we assessed the transcriptional activity of NF-κB using an electrophoretic mobility shift assay (EMSA). Finally, we evaluated the effect of resveratrol on IL-1β–induced inhibition of glucose-stimulated insulin secretion in freshly isolated rat pancreatic islets. Results Resveratrol significantly suppressed IL-1β-induced NO production, a finding that correlated well with reduced levels of iNOS mRNA and protein. The molecular mechanism by which resveratrol inhibited iNOS gene expression appeared to involve increased PPAR-γ activity, which resulted in the inhibition of NF-κB activation. Further analysis showed that resveratrol could prevent IL-1β-induced inhibition of glucose-stimulated insulin secretion in rat islets. Conclusion In this study, we demonstrated that resveratrol could protect against pancreatic β-cell dysfunction caused by IL-1β.
Collapse
|
24
|
Bokhari J, Khan MR, Shabbir M, Rashid U, Jan S, Zai JA. Evaluation of diverse antioxidant activities of Galium aparine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 102:24-29. [PMID: 23211618 DOI: 10.1016/j.saa.2012.09.056] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 09/10/2012] [Accepted: 09/20/2012] [Indexed: 06/01/2023]
Abstract
Methanol extract and its n-hexane, ethyl acetate, butanol and aqueous fraction of Galium aparine L. (Rubiacea) were evaluated in vitro for their antioxidant capacity (DPPH, superoxide radical, phosphomolybdate assay); reducing power (ABTS, hydroxyl, hydrogen peroxide, to reduce Fe(3+) to Fe(2+) ions) and to estimate total flavonoid and phenolic contents. All the free radical generating assay models depicted differential positive scavenging activity but considerable magnitude for all the fractions. The results showed that aqueous fraction strongly scavenge the DPPH, ABTS, hydroxyl, hydrogen peroxide and superoxide radicals. A significantly high correlation coefficient existed between IC(50) values of DPPH and superoxide radical with total phenolic content and phosphomolybdate assay with total flavonoid contents, respectively. These results suggested that aqueous fraction can be a good source of antioxidant therapeutic in oxidative stress damages.
Collapse
Affiliation(s)
- Jasia Bokhari
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | | | | | | | | | | |
Collapse
|
25
|
Martín S, González-Burgos E, Carretero ME, Gómez-Serranillos MP. Protective Effects of Merlot Red Wine Extract and its Major Polyphenols in Pc12 Cells under Oxidative Stress Conditions. J Food Sci 2012; 78:H112-8. [DOI: 10.1111/1750-3841.12000] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
26
|
Abstract
The well-known antioxidant activity of red wine is explained mostly by its polyphenols content, where the final effect is based on the wine components’ interaction. The aim of our work was the study of the interaction of three red wine polyphenols—quercetin, resveratrol and caffeic acid—alone and in their equimolar binary and ternary mixtures in different antioxidant/scavenging assays (inhibition of 2-deoxy-D-ribose degradation by hydroxyl radical, FRAP, Fe(III) reducing power, DPPH, ABTS and NO scavenging, respectively). Interaction analysis, based on median effect equation, was performed for the determination of synergy and/or antagonism. The obtained results indicate that the mutual interactions of tested polyphenols in their mixtures are markedly different from each other, depending on the reaction mechanism of the assay used. The measured antioxidant activity of individual polyphenols is not a constant value when other substances are present in the mixture with this polyphenol. Interactions can cause the finally observed synergy/antagonism/additive effects without any possibility of predicting them from the known activities of single compounds. This “unpredictability” claim based on in vitro assay results should be very important in multiple systems and processes in Nature, where the interactions among compounds in mixtures need to be take into account.
Collapse
|
27
|
Dose-response to 3 months of quercetin-containing supplements on metabolite and quercetin conjugate profile in adults. Br J Nutr 2012; 109:1923-33. [PMID: 23151341 DOI: 10.1017/s0007114512003972] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Quercetin, a flavonol in fruits and vegetables, has been demonstrated to have antioxidant, anti-inflammatory and immunomodulating influences. The purpose of the present study was to determine if quercetin, vitamin C and niacin supplements (Q-500 = 500 mg/d of quercetin, 125 mg/d of vitamin C and 5 mg/d of niacin; Q-1000 = 1000 mg/d of quercetin, 250 mg/d of vitamin C and 10 mg/d of niacin) would alter small-molecule metabolite profiles and serum quercetin conjugate levels in adults. Healthy adults (fifty-eight women and forty-two men; aged 40-83 years) were assigned using a randomised double-blinded placebo-controlled trial to one of three supplement groups (Q-1000, Q-500 or placebo). Overnight fasted blood samples were collected at 0, 1 and 3 months. Quercetin conjugate concentrations were measured using ultra-performance liquid chromatography (UPLC)-MS/MS, and metabolite profiles were measured using two MS platforms (UPLC-quadrupole time-of-flight MS (TOFMS) and GC-TOFMS). Statistical procedures included partial least square discriminant analysis (PLS-DA) and linear mixed model analysis with repeated measures. After accounting for age, sex and BMI, quercetin supplementation was associated with significant shifts in 163 metabolites/quercetin conjugates (false discovery rate, P<0·05). The top five metabolite shifts were an increase in serum guaiacol, 2-oxo-4-methylthiobutanoic acid, allocystathionine and two bile acids. Inflammatory and oxidative stress metabolites were not affected. PLS-DA revealed a clear separation only between the 1000 mg/d and placebo groups (Q(2)Y = 0·763). The quercetin conjugate, isorhamnetin-3-glucuronide, had the highest concentration at 3 months followed by quercetin-3-glucuronide, quercetin-3-sulphate and quercetin diglucuronide. In human subjects, long-term quercetin supplementation exerts disparate and wide-ranging metabolic effects and changes in quercetin conjugate concentrations. Metabolic shifts were apparent at the 1000 mg/d dose; further research is required to understand the health implications of these shifts.
Collapse
|
28
|
Quercetin inhibits degranulation and superoxide generation in PMA stimulated neutrophils. Interdiscip Toxicol 2012; 5:81-3. [PMID: 23118592 PMCID: PMC3485658 DOI: 10.2478/v10102-012-0014-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 05/30/2012] [Accepted: 06/07/2012] [Indexed: 01/01/2023] Open
Abstract
Activated neutrophils represent the main source of myeloperoxidase (MPO), superoxide (SO) and subsequently derived oxygen metabolites. They have important microbicidal activities, however in inflammatory conditions they may secondarily attack surrounding tissues. Overproduction of reactive oxygen species, prolonged or excessive liberation of MPO and other effective yet also toxic substances from neutrophils may participate in disturbed apoptosis, intensify the inflammatory processes and result in serious human diseases. The inhibitory effect of quercetin on PMA stimulated SO generation in isolated human neutrophils was found to be dose-dependent, without affecting the activity of intact isolated neutrophils. At comparable conditions, quercetin was more potent in inhibiting MPO release than SO generation. Our results indicate that quercetin could support resolution of inflammation through decreased activity of neutrophils, i.e. respiratory burst and degranulation.
Collapse
|
29
|
Khan RA. Evaluation of flavonoids and diverse antioxidant activities of Sonchus arvensis. Chem Cent J 2012; 6:126. [PMID: 23107458 PMCID: PMC3505741 DOI: 10.1186/1752-153x-6-126] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2012] [Accepted: 10/11/2012] [Indexed: 11/24/2022] Open
Abstract
Background Sonchus arvensis is used in the treatment of various human aliments as a traditional medicine in Pakistan. In the study its various fractions are characterized for scavenging of diverse free radicals. Results Results of the present study revealed that various fractions of Sonchus arvensis significantly scavenged the free radicals (DPPH·, ABTS·+, ·OH, superoxide), however its methanolic fraction is more potent than other fractions. Significant correlation was found between DPPH·, ABTS·+, superoxide radical and total antioxidant activity with total flavonoids and phenolics contents. Phytochmical analysis revealed the presence kaempferol, quercetin, orientin, rutin, hyperoside, catechin and myricetin. Conclusion From the present data it is concluded that various fractions of Sonchus arvensis significantly scavenged the free radical, which might be due the presence of polyphenolic constituent.
Collapse
Affiliation(s)
- Rahmat Ali Khan
- Department of Biotechnology, Faculty of Biological Sciences, University of Science and technology, Bannu, 2800, KPK, Pakistan.
| |
Collapse
|
30
|
Jančinová V, Perečko T, Nosáľ R, Harmatha J, Smidrkal J, Drábiková K. The natural stilbenoid pinosylvin and activated neutrophils: effects on oxidative burst, protein kinase C, apoptosis and efficiency in adjuvant arthritis. Acta Pharmacol Sin 2012; 33:1285-92. [PMID: 22842731 PMCID: PMC4002707 DOI: 10.1038/aps.2012.77] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
AIM To investigate the effects of the naturally occurring stilbenoid pinosylvin on neutrophil activity in vitro and in experimental arthritis, and to examine whether protein kinase C (PKC) activation served as an assumed target of pinosylvin action. METHODS Fresh human blood neutrophils were isolated. The oxidative burst of neutrophils was evaluated on the basis of enhanced chemiluminescence. Neutrophil viability was evaluated with flow cytometry, and PKC phosphorylation was assessed by Western blotting analysis. Adjuvant arthritis was induced in Lewis rats with heat-killed Mycobacterium butyricum, and the animals were administered with pinosylvin (30 mg/kg, po) daily for 21 d after arthritis induction. RESULTS In isolated human neutrophils, pinosylvin (10 and 100 μmol/L) significantly decreased the formation of oxidants, both extra- and intracellularly, and effectively inhibited PKC activation stimulated by phorbol myristate acetate (0.05 μmol/L). The inhibition was not due to neutrophil damage or increased apoptosis. In arthritic rats, the number of neutrophils in blood was dramatically increased, and whole blood chemiluminescence (spontaneous and PMA-stimulated) was markedly enhanced. Pinosylvin administration decreased the number of neutrophils (from 69 671 ± 5588/μL to 51 293 ± 3947/μL, P=0.0198) and significantly reduced the amount of reactive oxygen species in blood. CONCLUSION Pinosylvin is an effective inhibitor of neutrophil activity, and is potentially useful as a complementary medicine in states associated with persistent inflammation.
Collapse
MESH Headings
- Adult
- Animals
- Anti-Inflammatory Agents, Non-Steroidal/administration & dosage
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Anti-Inflammatory Agents, Non-Steroidal/therapeutic use
- Apoptosis/drug effects
- Arthritis, Experimental/blood
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/enzymology
- Arthritis, Experimental/immunology
- Blotting, Western
- Cell Survival/drug effects
- Cells, Cultured
- Dose-Response Relationship, Drug
- Flow Cytometry
- Humans
- Leukocyte Count
- Luminescent Measurements
- Male
- Middle Aged
- Neutrophil Activation/drug effects
- Neutrophils/cytology
- Neutrophils/drug effects
- Neutrophils/metabolism
- Pinus sylvestris/chemistry
- Protein Kinase C/metabolism
- Rats
- Rats, Inbred Lew
- Reactive Oxygen Species/metabolism
- Respiratory Burst/drug effects
- Stilbenes/administration & dosage
- Stilbenes/pharmacology
- Stilbenes/therapeutic use
- Young Adult
Collapse
Affiliation(s)
- Viera Jančinová
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Bratislava, Slovak Republic.
| | | | | | | | | | | |
Collapse
|
31
|
Hadad N, Levy R. The synergistic anti-inflammatory effects of lycopene, lutein, β-carotene, and carnosic acid combinations via redox-based inhibition of NF-κB signaling. Free Radic Biol Med 2012; 53:1381-91. [PMID: 22889596 DOI: 10.1016/j.freeradbiomed.2012.07.078] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 07/26/2012] [Accepted: 07/27/2012] [Indexed: 01/16/2023]
Abstract
Inflammatory mediators and cytokines play important roles in the pathogenesis of a vast number of human diseases; therefore much attention is focused on blunting their proinflammatory modes of action. The aims of the present research were to assess the effectiveness of combinations of carotenoids and phenolics, at concentrations that can be achieved in blood, to inhibit the release of inflammatory mediators from macrophages exposed to lipopolysaccharide (LPS) and to determine what the anti-inflammatory effect of the phytonutrient combinations was in an in vivo mouse model of peritonitis. Preincubation of mouse peritoneal macrophages with lycopene (1 μM) or Lyc-O-Mato (1 μM) and carnosic acid (2 μM), lutein (1 μM), and/or β-carotene (2 μM) 1h before addition of LPS for 24 h caused a synergistic inhibition of NO, prostaglandin E(2), and superoxide production derived from downregulation of iNOS, COX-2, and NADPH oxidase protein and mRNA expression and synergistic inhibition of TNFα secretion. We surmise that the anti-inflammatory action of the phytonutrient combinations used probably resides in their antioxidant properties, because they caused an immediate, efficient, and synergistic inhibition of LPS-induced internal superoxide production leading to a marked decrease in ERK and NF-κB activation. The anti-inflammatory effects of the selected phytonutrient combinations were also demonstrated in a mouse model of peritonitis: their supplementation in drinking water resulted in attenuation of neutrophil recruitment to the peritoneal cavity and in inhibition of inflammatory mediator production by peritoneal neutrophils and macrophages.
Collapse
Affiliation(s)
- Nurit Hadad
- Immunology and Infectious Diseases Laboratory, Clinical Biochemistry Department, Faculty of Health Sciences, Ben-Gurion University of the Negev and Soroka University Medical Center, Beer-Sheva 84105, Israel
| | | |
Collapse
|
32
|
Lara-Guzman OJ, Tabares-Guevara JH, Leon-Varela YM, Álvarez RM, Roldan M, Sierra JA, Londoño-Londoño JA, Ramirez-Pineda JR. Proatherogenic Macrophage Activities Are Targeted by the Flavonoid Quercetin. J Pharmacol Exp Ther 2012; 343:296-306. [DOI: 10.1124/jpet.112.196147] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
|
33
|
Schrieks IC, van den Berg R, Sierksma A, Beulens JWJ, Vaes WHJ, Hendriks HFJ. Effect of red wine consumption on biomarkers of oxidative stress. Alcohol Alcohol 2012; 48:153-9. [PMID: 22859618 DOI: 10.1093/alcalc/ags086] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
AIMS To evaluate the effect of acute and chronic consumption of red wine or de-alcoholized red wine with a similar antioxidant capacity on plasma total antioxidant capacity (TEAC), nuclear factor-κB (NF-κB) activity and F2-isoprostanes (8-iso-PGF(2α)) in healthy men. METHODS Nineteen healthy men with an increased waist circumference (≥94 cm) and a body mass index above 25 kg/m(2) participated in a randomized, controlled crossover design trial. They daily consumed 450 ml of red wine (four drinks; 41.4 g alcohol) or 450 ml of de-alcoholized red wine during dinner for 4 weeks each. On the last day of each treatment period, blood was collected before and 1 h after a standardized dinner with red wine or de-alcoholized red wine and also 24-h urine was collected. RESULTS Absolute TEAC levels were higher 1 h after dinner with red wine compared with dinner with de-alcoholized red wine (1.3 versus 1.1 mmol Trolox equivalents/l; P = 0.03). Consumption of dinner together with de-alcoholized red wine acutely stimulated NF-κB activity in peripheral blood mononuclear cells (0.4-0.7 HeLa equivalents/2.5 μg protein; P = 0.006), whereas this increase was completely suppressed when the dinner was combined with red wine. A chronic increase in urinary 8-iso-PGF(2α) after 4 weeks of red wine consumption compared with de-alcoholized red wine consumption (157 pg/mg creatinine and 141 pg/mg creatinine, respectively, P = 0.006) was also observed. CONCLUSIONS Consumption of a moderate dose of red wine can acutely increase plasma TEAC and suppress NF-κB activation induced by a meal. Controversially, 4 weeks of red wine consumption compared with de-alcoholized red wine consumption increases the oxidative lipid damage marker 8-iso-PGF(2α).
Collapse
|
34
|
Angel-Morales G, Noratto G, Mertens-Talcott S. Red wine polyphenolics reduce the expression of inflammation markers in human colon-derived CCD-18Co myofibroblast cells: potential role of microRNA-126. Food Funct 2012; 3:745-52. [PMID: 22572890 DOI: 10.1039/c2fo10271d] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Chronic intestinal inflammation is an established risk factor for colon cancer. Polyphenolic compounds from fruit and vegetables have been shown to have anti-inflammatory properties in several cell lines and tissues. However, their anti-inflammatory mechanisms, involving microRNAs in the regulation of inflammation, have not been extensively investigated. The goal of this research was to assess the chemopreventive potential of polyphenolics extracted from red wine made with Lenoir grapes (Vitis aestivalis hybrid) in human colon-derived CCD-18Co myofibroblasts cells, and to assess the potential involvement of microRNA-126 (miR-126) in the underlying mechanisms. The results show that the polyphenolic red wine extract (WE) decreased mRNA expression of lipopolysaccharide (LPS)-induced inflammatory mediators NF-kB, ICAM-1, VCAM-1, and PECAM-1 by 1.95-, 1.98-, 1.52-, and 1.84-fold respectively, in a dose dependent manner (0-100 μg of gallic acid equivalent (GAE) mL(-1)) down to 0.80-, 0.79-, 0.66-, and 0.68-fold in DMSO-treated control cells not challenged with LPS, respectively. Correspondingly, miR-126, which has a target region within the 3'-UTR of VCAM-1 mRNA, was increased 2.79-fold by the WE at 100 μg GAE mL(-1). The potential role of miR-126 was confirmed by transfecting cells with a specific miR-126-antagomir, as-miR-126. Transfection with as-miR-126 down-regulated miR-126 to 0.71-fold in the control cells and up-regulated mRNA levels of NF-kB, ICAM-1, VCAM-1, and PECAM-1 to 1.80-, 1.49-, 2.30-, and 1.95-fold of controls, respectively. WE at 100 μg GAE mL(-1) partially reversed the effects of the as-miR-126 to 1.02-, 1.01-, 1.04-, and 1.05-fold, for mRNA levels of NF-kB, ICAM-1, VCAM-1, and PECAM-1 respectively. This indicates the potential role of miR-126 in the anti-inflammatory properties of polyphenolics from red wine in CCD-18Co myofibroblasts cells.
Collapse
Affiliation(s)
- Gabriela Angel-Morales
- Department of Nutrition and Food Science, Texas A&M University, College Station, TX 77843, USA
| | | | | |
Collapse
|
35
|
Uhlenhut K, Högger P. Pitfalls and limitations in using 4,5-diaminofluorescein for evaluating the influence of polyphenols on nitric oxide release from endothelial cells. Free Radic Biol Med 2012; 52:2266-75. [PMID: 22565032 DOI: 10.1016/j.freeradbiomed.2012.03.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2011] [Revised: 03/05/2012] [Accepted: 03/07/2012] [Indexed: 10/28/2022]
Abstract
The reagent 4,5-diaminofluorescein (DAF-2) is a widely utilized and sensitive fluorescent probe for real-time assessment of nitric oxide (NO) production. In this study we investigated the feasibility of using DAF-2 for detection of NO release from EA.hy 926 human endothelial cells stimulated with plant polyphenols. Flavonoids have recently gained much interest because of reported beneficial effects on vasodilatation, which have been ascribed to stimulation of endothelial NO production. DAF-2 shows moderate fluorescence, and because certain phenolic compounds quench fluorescence or fluoresce themselves, we utilized liquid chromatography to avoid interference. Our investigations with (+)-catechin and trans-resveratrol as test phenolic compounds revealed various previously undescribed principal methodologic pitfalls and limitations. Under assay conditions (+)-catechin displayed a highly significant increase in fluorescence intensity so that a control of test compound stability is advisable. Moreover, DAF-2 was subject to conversion to triazolofluorescein (DAF-2T) under certain assay and storage conditions; thus control of spontaneous reagent conversion is advisable. Finally, formation of DAF-2T was dose-dependently inhibited by polyphenols to a degree consistent with their free radical scavenging activity. The inhibition of DAF-2T generation seems to contradict previous reports on enhanced NO release from endothelial cells by (+)-catechin and resveratrol. Therefore, the planning of experiments involving NO measurement in biological systems and interpretation of results requires substantial scrutiny.
Collapse
Affiliation(s)
- Klaus Uhlenhut
- Institut für Pharmazie und Lebensmittelchemie, Universität Würzburg, 97074 Würzburg, Germany
| | | |
Collapse
|
36
|
Kim EO, Min KJ, Kwon TK, Um BH, Moreau RA, Choi SW. Anti-inflammatory activity of hydroxycinnamic acid derivatives isolated from corn bran in lipopolysaccharide-stimulated Raw 264.7 macrophages. Food Chem Toxicol 2012; 50:1309-16. [DOI: 10.1016/j.fct.2012.02.011] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 01/28/2012] [Accepted: 02/09/2012] [Indexed: 12/11/2022]
|
37
|
Flavonoids inhibit the respiratory burst of neutrophils in mammals. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2012; 2012:181295. [PMID: 22577489 PMCID: PMC3347721 DOI: 10.1155/2012/181295] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 02/28/2012] [Indexed: 02/06/2023]
Abstract
Neutrophils represent the front-line defence cells in protecting organisms against infection and play an irreplaceable role in the proper performance of the immune system. As early as within the first minutes of stimulation, neutrophilic NADPH oxidase is activated, and cells release large quantities of highly toxic reactive oxygen species (ROS). These oxidants can be highly toxic not only for infectious agents but also for neighboring host tissues. Since flavonoids exhibit antioxidant and anti-inflammatory effects, they are subjects of interest for pharmacological modulation of ROS production. The present paper summarizes contemporary knowledge on the effects of various flavonoids on the respiratory burst of mammalian neutrophils. It can be summarized that the inhibitory effects of flavonoids on the respiratory burst of phagocytes are mediated via inhibition of enzymes involved in cell signaling as well as via modulation of redox status. However, the effects of flavonoids are even more complex, and several sites of action, depending upon the flavonoid structure and way of application, are included.
Collapse
|
38
|
Jain S, Jain DK, Balekar N. In–Vivo Antioxidant activity of ethanolic extract of Mentha pulegium leaf against CCl4 induced toxicity in rats. Asian Pac J Trop Biomed 2012. [DOI: 10.1016/s2221-1691(12)60306-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
39
|
Angel-Morales G, Noratto G, Mertens-Talcott SU. Standardized curcuminoid extract (Curcuma longa l.) decreases gene expression related to inflammation and interacts with associated microRNAs in human umbilical vein endothelial cells (HUVEC). Food Funct 2012; 3:1286-93. [DOI: 10.1039/c2fo30023k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
40
|
Quercetin is increased in heat-processed Cuscuta campestris seeds, which enhances the seed's anti-inflammatory and anti-proliferative activities. Process Biochem 2011. [DOI: 10.1016/j.procbio.2011.09.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
41
|
Shingu C, Hagiwara S, Iwasaka H, Matsumoto S, Koga H, Yokoi I, Noguchi T. EPCK1, a Vitamin C and E Analogue, Reduces Endotoxin-Induced Systemic Inflammation in Mice. J Surg Res 2011; 171:719-25. [DOI: 10.1016/j.jss.2010.03.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2009] [Revised: 02/16/2010] [Accepted: 03/17/2010] [Indexed: 01/25/2023]
|
42
|
Teng P, Liu HL, Deng ZS, Shi ZB, He YM, Feng LL, Xu Q, Li JX. Synthesis and biological evaluation of unique stereodimers of sinomenine analogues as potential inhibitors of NO production. Bioorg Med Chem 2011; 19:3096-104. [DOI: 10.1016/j.bmc.2011.04.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Revised: 04/02/2011] [Accepted: 04/04/2011] [Indexed: 12/20/2022]
|
43
|
Knab AM, Shanely RA, Henson DA, Jin F, Heinz SA, Austin MD, Nieman DC. Influence of Quercetin Supplementation on Disease Risk Factors in Community-Dwelling Adults. ACTA ACUST UNITED AC 2011; 111:542-9. [DOI: 10.1016/j.jada.2011.01.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Accepted: 10/26/2010] [Indexed: 11/30/2022]
|
44
|
Ambrozova G, Pekarova M, Lojek A. The effect of lipid peroxidation products on reactive oxygen species formation and nitric oxide production in lipopolysaccharide-stimulated RAW 264.7 macrophages. Toxicol In Vitro 2010; 25:145-52. [PMID: 20940037 DOI: 10.1016/j.tiv.2010.10.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Revised: 10/05/2010] [Accepted: 10/06/2010] [Indexed: 01/28/2023]
Abstract
Lipid peroxidation induced by oxidants leads to the formation of highly reactive metabolites. These can affect various immune functions, including reactive oxygen species (ROS) and nitric oxide (NO) production. The aim of the present study was to investigate the effects of lipid peroxidation products (LPPs) - acrolein, 4-hydroxynonenal, and malondialdehyde - on ROS and NO production in RAW 264.7 macrophages and to compare these effects with the cytotoxic properties of LPPs. Macrophages were stimulated with lipopolysaccharide (0.1 μg/ml) and treated with selected LPPs (concentration range: 0.1-100 μM). ATP test, luminol-enhanced chemiluminescence, Griess reaction, Western blotting analysis, amperometric and total peroxyl radical-trapping antioxidant parameter assay were used for determining the LPPs cytotoxicity, ROS and NO production, inducible nitric oxide synthase expression, NO scavenging, and antioxidant properties of LPPs, respectively. Our study shows that the cytotoxic action of acrolein and 4-hydroxynonenal works in a dose- and time-dependent manner. Further, our results imply that acrolein, 4-hydroxynonenal, and malondialdehyde can inhibit, to a different degree, ROS and NO production in stimulated macrophages, partially independently of their toxic effect. Also, changes in enzymatic pathways (especially NADPH-oxidase and nitric oxide synthase inhibition) and NO scavenging properties are included in the downregulation of reactive species formation.
Collapse
Affiliation(s)
- Gabriela Ambrozova
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czech Republic
| | | | | |
Collapse
|
45
|
Chang CL, Zhang LJ, Chen RY, Kuo LMY, Huang JP, Huang HC, Lee KH, Wu YC, Kuo YH. Antioxidant and anti-inflammatory phenylpropanoid derivatives from Calamus quiquesetinervius. JOURNAL OF NATURAL PRODUCTS 2010; 73:1482-1488. [PMID: 20825224 DOI: 10.1021/np100181c] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Eight new phenylpropanoid derivatives [quiquesetinerviusides A (1), B (2), C (3), D (4), and E (5), as well as quiquesetinerviusins A (6), B (7), and C (8)] and seven known compounds (8-15), were isolated from an EtOAc extract of Calamus quiquesetinervius stems. The structures of 1-8 were elucidated on the basis of 1D- and 2D-NMR spectroscopic data analysis. Bioassay results showed that 1-5 possess weak DPPH (2,2-diphenyl-1-picrylhydrazyl) scavenging activity, but potent (·)OH radical scavenging activity (IC(50) 3.6-8.4 μM). Of the tested isolates, compounds 4-6 and 9 showed potent inhibition (IC(50) 9.2-29.5 μM) of LPS-stimulated NO production when compared with a positive control substance, quercetin (IC(50) 34.5 μM).
Collapse
Affiliation(s)
- Chao-Lin Chang
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan, Republic of China.
| | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Figueirinha A, Cruz MT, Francisco V, Lopes MC, Batista MT. Anti-inflammatory activity of Cymbopogon citratus leaf infusion in lipopolysaccharide-stimulated dendritic cells: contribution of the polyphenols. J Med Food 2010; 13:681-90. [PMID: 20438326 DOI: 10.1089/jmf.2009.0115] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Cymbopogon citratus, an herb known worldwide as lemongrass, is widely consumed as an aromatic drink, and its fresh and dried leaves are currently used in traditional cuisine. However, little is known about the mechanism of action of C. citratus, namely, the anti-inflammatory effects of its dietary components. Because nitric oxide (NO), produced in large quantities by activated inflammatory cells, has been demonstrated to be involved in the pathogenesis of acute and chronic inflammation, we evaluated the effects of the infusion of dried leaves from C. citratus, as well as its polyphenolic fractions--flavonoid-, tannin-, and phenolic acid-rich fractions (FF, TF, and PAF, respectively)--on the NO production induced by lipopolysaccharide (LPS) in a skin-derived dendritic cell line (FSDC). C. citratus infusion significantly inhibited the LPS-induced NO production and inducible NO synthase (iNOS) protein expression. All the polyphenolic fractions tested also reduced the iNOS protein levels and NO production stimulated by LPS in FSDC cells, without affecting cell viability, with the strongest effects being observed for the fractions with mono- and polymeric flavonoids (FF and TF, respectively). Our results also indicated that the anti-inflammatory properties of FF are mainly due to luteolin glycosides. In conclusion, C. citratus has NO scavenging activity and inhibits iNOS expression and should be explored for the treatment of inflammatory diseases, in particular of the gastrointestinal tract.
Collapse
Affiliation(s)
- Artur Figueirinha
- Centros de Estudos Farmacêuticos, Universidade de Coimbra, Coimbra, Portugal
| | | | | | | | | |
Collapse
|
47
|
Tuntipopipat S, Muangnoi C, Chingsuwanrote P, Parengam M, Chantravisut P, Charoenkiatkul S, Svasti S. Anti-inflammatory activities of red curry paste extract on lipopolysaccharide-activated murine macrophage cell line. Nutrition 2010; 27:479-87. [PMID: 20708382 DOI: 10.1016/j.nut.2010.04.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 04/27/2010] [Accepted: 04/27/2010] [Indexed: 01/08/2023]
Abstract
OBJECTIVE This study investigated anti-inflammatory and antioxidant activities of an ethanol extract from Thai red curry paste. METHODS The RAW264.7 murine macrophage cell line was incubated with the extract (65-260 μg/mL) with or without lipopolysaccharide. The anti-inflammatory activities of the extract were examined by measuring inducible nitric oxide synthase, cyclo-oxygenase-2, tumor necrosis factor-α, and interleukin-6 mRNA and protein level by reverse transcription-polymerase chain reaction, western blotting, and enzyme-linked immunosorbent assay, respectively. Nitric oxide production and intracellular reactive oxygen species generation were determined by the Griess method and fluorescence intensity. The activation of mitogen-activated protein kinases and inhibitor κB were determined by western blot. RESULTS Exposure of cells with the extract significantly suppressed lipopolysaccharide-induced nitric oxide production and inducible nitric oxide synthase, cyclo-oxygenase-2, tumor necrosis factor-α, and interleukin-6 expressions (P < 0.05) by dose-dependently without cytotoxic effect. Intracellular reactive oxygen species significantly decreased (P < 0.05) in lipopolysaccharide-induced RAW264.7 cells. The inhibitory effect was mediated partly by inhibiting activation of inhibitor κB-α and mitogen-activated protein kinases. CONCLUSION These results suggest that the anti-inflammatory and antioxidant properties of Thai red curry paste stem from bioactive compounds present in the spice and herb constituents. The health benefits of Thai red curry paste warrant further investigations in vivo.
Collapse
|
48
|
A 12-week supplementation with quercetin does not affect natural killer cell activity, granulocyte oxidative burst activity or granulocyte phagocytosis in female human subjects. Br J Nutr 2010; 104:849-57. [DOI: 10.1017/s000711451000156x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Quercetin, a flavonoid found in fruits and vegetables, is a strong antioxidant with anti-inflammatory, antimicrobial and immune-modulating properties. The purpose of the present study was to investigate the effects of long-term quercetin supplementation on innate immune function and inflammation in human subjects. Female subjects (n 120; aged 30–79 years) were recruited from the community and randomised to one of three groups, with supplements administered using double-blinded procedures: 500 mg quercetin/d (n 38), 1000 mg quercetin/d (n 40) or placebo (n 42). Subjects ingested two soft chew supplements twice daily during the 12-week study period. Fasting blood samples were obtained pre- and post-study and were analysed for plasma quercetin, IL-6, TNF-α and leucocyte subset cell counts. Natural killer cell activity (NKCA) and lymphocyte subsets were assessed in a subset of seventy-four subjects. Granulocyte oxidative burst activity (GOBA) and phagocytosis were assessed in sixty-four subjects. Eighteen subjects had overlapping data. Quercetin supplementation at two doses compared with placebo increased plasma quercetin (interaction effect; P < 0·001) but had no significant influence on blood leucocyte subsets, plasma IL-6 or TNF-α concentration, NKCA, GOBA or phagocytosis. NKCA was inversely correlated with BMI (r − 0·25; P = 0·035) and body fat percentage (r − 0·38; P = 0·001), and positively correlated with self-reported physical fitness level (r 0·24; P = 0·032). In summary, results from the present double-blinded, placebo-controlled, randomised trial indicated that quercetin supplementation at 500 and 1000 mg/d for 12 weeks significantly increased plasma quercetin levels but had no influence on measures of innate immune function or inflammation in community-dwelling adult females.
Collapse
|
49
|
Gorjanović SZ, Novaković MM, Potkonjak NI, Suznjević DZ. Antioxidant activity of wines determined by a polarographic assay based on hydrogen peroxide scavenge. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:4626-4631. [PMID: 20302358 DOI: 10.1021/jf100022e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Antioxidant (AO) activity of various red and white wines of different origin as well as some individual phenolic compounds present in wine has been assessed using a polarographic assay. Direct current polarography has been used to survey hydrogen peroxide scavenge (HPS) upon gradual addition of tested samples. Results expressed as reciprocal value of wine volume required for 50% decrease of anodic limiting current of hydrogen peroxide have been validated through correlation with Folin-Ciocalteau and DPPH assays. All wines exhibit HPS activity analogous with total phenolic content and DPPH scavenge. Reliability and accuracy, low cost, and rapid and direct experimental procedure open a wide area for application of this assay, making it a good alternative to standard, widely accepted AO assays.
Collapse
|
50
|
Šmidrkal J, Harmatha J, Buděšínský M, Vokáč K, Zídek Z, Kmoníčková E, Merkl R, Filip V. Modified approach for preparing (E)-stilbenes related to resveratrol, and evaluation of their potential immunobiological effects. ACTA ACUST UNITED AC 2010. [DOI: 10.1135/cccc2009531] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Resveratrol and closely related stilbenoids belong to the most intensively studied biologically active compounds. This interest evoked several attempts to prepare such compounds in a convenient synthetic way. Our approach allowed obtaining largely methoxystilbenes, formed as E-isomers only (using Wittig–Horner synthesis as the key step), which were further demethylated by boron tribromide. The hydroxymethoxystilbenes (e.g. pterostilbene) were prepared using isopropyl protection, later selectively deprotected by boron trichloride. The method is suitable for preparing such compounds in a large amount. Effects of the obtained stilbene derivatives on immunobiological responses triggered by lipopolysacharide and interferon-γ were tested under in vitro conditions. Namely production of nitric oxide (NO) was investigated, and relation between the molecular structure and immunobiological activity was assessed.
Collapse
|