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Calado CMSDS, Manhães-de-Castro R, da Conceição Pereira S, da Silva Souza V, Barbosa LNF, Dos Santos Junior OH, Lagranha CJ, Juárez PAR, Torner L, Guzmán-Quevedo O, Toscano AE. Resveratrol Reduces Neuroinflammation and Hippocampal Microglia Activation and Protects Against Impairment of Memory and Anxiety-Like Behavior in Experimental Cerebral Palsy. Mol Neurobiol 2024; 61:3619-3640. [PMID: 38001357 DOI: 10.1007/s12035-023-03772-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/20/2023] [Indexed: 11/26/2023]
Abstract
Cerebral palsy (CP) is a neurodevelopmental disorder characterized by motor and postural impairments. However, early brain injury can promote deleterious effects on the hippocampus, impairing memory. This study aims to investigate the effects of resveratrol treatment on memory, anxiety-like behavior, and neuroinflammation markers in rats with CP. Male Wistar rats were subjected to perinatal anoxia (P0-P1) and sensory-motor restriction (P2-P28). They were treated with resveratrol (10 mg/kg, 0.1 ml/100 g) or saline from P3-P21, being divided into four experimental groups: CS (n = 15), CR (n = 15), CPS (n = 15), and CPR (n = 15). They were evaluated in the tests of novel object recognition (NORT), T-Maze, Light-Dark Box (LDB), and Elevated Plus Maze (EPM). Compared to the CS group, the CPS group has demonstrated a reduced discrimination index on the NORT (p < 0.0001) and alternation on the T-Maze (p < 0.01). In addition, the CPS group showed an increase in permanence time on the dark side in LDB (p < 0.0001) and on the close arms of the EPM (p < 0.001). The CPR group demonstrated an increase in the object discrimination index (p < 0.001), on the alternation (p < 0.001), on the permanence time on the light side (p < 0.0001), and on the open arms (p < 0.001). The CPR group showed a reduction in gene expression of IL-6 (p = 0.0175) and TNF-α (p = 0.0007) and an increase in Creb-1 levels (p = 0.0020). The CPS group showed an increase in the activated microglia and a reduction in cell proliferation in the hippocampus, while CPR animals showed a reduction of activated microglia and an increase in cell proliferation. These results demonstrate promising effects of resveratrol in cerebral palsy behavior impairment through reduced neuroinflammation in the hippocampus.
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Affiliation(s)
- Caio Matheus Santos da Silva Calado
- Studies in Nutrition and Phenotypic Plasticity Unit, Center for Health Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-420, Brazil
- Graduate Program in Neuropsychiatry and Behavioral Sciences, Center for Medical Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-901, Brazil
| | - Raul Manhães-de-Castro
- Studies in Nutrition and Phenotypic Plasticity Unit, Center for Health Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-420, Brazil
- Graduate Program in Neuropsychiatry and Behavioral Sciences, Center for Medical Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-901, Brazil
- Graduate Program in Nutrition, Center for Health Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-420, Brazil
| | - Sabrina da Conceição Pereira
- Studies in Nutrition and Phenotypic Plasticity Unit, Center for Health Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-420, Brazil
- Graduate Program in Neuropsychiatry and Behavioral Sciences, Center for Medical Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-901, Brazil
| | - Vanessa da Silva Souza
- Studies in Nutrition and Phenotypic Plasticity Unit, Center for Health Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-420, Brazil
- Graduate Program in Neuropsychiatry and Behavioral Sciences, Center for Medical Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-901, Brazil
| | - Leticia Nicoly Ferreira Barbosa
- Studies in Nutrition and Phenotypic Plasticity Unit, Center for Health Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-420, Brazil
| | - Osmar Henrique Dos Santos Junior
- Graduate Program in Neuropsychiatry and Behavioral Sciences, Center for Medical Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-901, Brazil
| | - Claudia Jacques Lagranha
- Graduate Program in Neuropsychiatry and Behavioral Sciences, Center for Medical Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-901, Brazil
- Graduate Program in Biochemistry and Physiology, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Pedro Alberto Romero Juárez
- Laboratory of Experimental Neuronutrition and Food Engineering, Tecnológico Nacional de México (TECNM), Instituto Tecnológico Superior de Tacámbaro, 61651, Tacámbaro, Michoacán, Mexico
- Centro de Investigación Biomédica de Michoacán, Instituto Mexicano del Seguro Social, 58330, Morelia, Michoacán, Mexico
| | - Luz Torner
- Centro de Investigación Biomédica de Michoacán, Instituto Mexicano del Seguro Social, 58330, Morelia, Michoacán, Mexico
| | - Omar Guzmán-Quevedo
- Graduate Program in Neuropsychiatry and Behavioral Sciences, Center for Medical Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-901, Brazil
- Laboratory of Experimental Neuronutrition and Food Engineering, Tecnológico Nacional de México (TECNM), Instituto Tecnológico Superior de Tacámbaro, 61651, Tacámbaro, Michoacán, Mexico
- Centro de Investigación Biomédica de Michoacán, Instituto Mexicano del Seguro Social, 58330, Morelia, Michoacán, Mexico
| | - Ana Elisa Toscano
- Studies in Nutrition and Phenotypic Plasticity Unit, Center for Health Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-420, Brazil.
- Graduate Program in Neuropsychiatry and Behavioral Sciences, Center for Medical Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-901, Brazil.
- Graduate Program in Nutrition, Center for Health Sciences, Federal University of Pernambuco, Recife, Pernambuco, 50670-420, Brazil.
- Nursing Unit, Vitória Academic Center, Federal University of Pernambuco, Rua Do Alto Do Reservatório S/N, Bela Vista, Vitória de Santo Antão, Pernambuco, 55608-680, Brazil.
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Bayer J, Högger P. Review of the pharmacokinetics of French maritime pine bark extract (Pycnogenol ®) in humans. Front Nutr 2024; 11:1389422. [PMID: 38757126 PMCID: PMC11096517 DOI: 10.3389/fnut.2024.1389422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 04/23/2024] [Indexed: 05/18/2024] Open
Abstract
The French maritime pine bark extract Pycnogenol® is a proprietary product from Pinus pinaster Aiton. It complies with the quality specifications in the United States Pharmacopeia monograph "Pine extract" in the section of dietary supplements. Pycnogenol® is standardized to contain 65-75% procyanidins which are a variety of biopolymers consisting of catechin and epicatechin monomeric units. The effects of Pycnogenol® have been researched in a multitude of human studies. The basis for any in vivo activity is the bioavailability of constituents and metabolites of the extract. General principles of compound absorption, distribution, metabolism and elimination as well as specific data from studies with Pycnogenol® are summarized and discussed in this review. Based on plasma concentration profiles it can be concluded that low molecular weight constituents of the extract, such as catechin, caffeic and ferulic acid, taxifolin are readily absorbed from the small intestine into systemic circulation. Procyanidin oligomers and polymers are subjected to gut microbial degradation in the large intestine yielding small bioavailable metabolites such as 5-(3',4'-dihydroxyphenyl)-γ-valerolactone. After intake of Pycnogenol®, constituents and metabolites have been also detected in blood cells, synovial fluid and saliva indicating a substantial distribution in compartments other than serum. In studies simultaneously investigating concentrations in different specimen, a preferential distribution of individual compounds has been observed, e.g., of ferulic acid and 5-(3',4'-dihydroxyphenyl)-γ-valerolactone into synovial fluid compared to serum. The main route of elimination of constituents and metabolites of the French pine bark extract is the renal excretion. The broad knowledge accumulated regarding the pharmacokinetics of compounds and metabolites of Pycnogenol® constitute a rational basis for effects characterized on a cellular level and observed in human clinical studies.
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Affiliation(s)
| | - Petra Högger
- Institut für Pharmazie und Lebensmittelchemie, Universität Würzburg, Würzburg, Germany
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Chbeir S, Carrión V. Resilience by design: How nature, nurture, environment, and microbiome mitigate stress and allostatic load. World J Psychiatry 2023; 13:144-159. [PMID: 37303926 PMCID: PMC10251360 DOI: 10.5498/wjp.v13.i5.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/11/2023] [Accepted: 04/17/2023] [Indexed: 05/19/2023] Open
Abstract
Resilience to psychological stress is defined as adaption to challenging life experiences and not the absence of adverse life events. Determinants of resilience include personality traits, genetic/epigenetic modifications of genes involved in the stress response, cognitive and behavioral flexibility, secure attachment with a caregiver, social and community support systems, nutrition and exercise, and alignment of circadian rhythm to the natural light/dark cycle. Therefore, resilience is a dynamic and flexible process that continually evolves by the intersection of different domains in human’s life; biological, social, and psychological. The objective of this minireview is to summarize the existing knowledge about the multitude factors and molecular alterations that result from resilience to stress response. Given the multiple contributing factors in building resilience, we set out a goal to identify which factors were most supportive of a causal role by the current literature. We focused on resilience-related molecular alterations resulting from mind-body homeostasis in connection with psychosocial and environmental factors. We conclude that there is no one causal factor that differentiates a resilient person from a vulnerable one. Instead, building resilience requires an intricate network of positive experiences and a healthy lifestyle that contribute to a balanced mind-body connection. Therefore, a holistic approach must be adopted in future research on stress response to address the multiple elements that promote resilience and prevent illnesses and psychopathology related to stress allostatic load.
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Affiliation(s)
- Souhad Chbeir
- Department of Psychiatry and Behavioral Sciences, School of Medicine, Stanford University, Stanford, CA 94305, United States
| | - Victor Carrión
- Department of Psychiatry and Behavioral Sciences, School of Medicine, Stanford University, Stanford, CA 94305, United States
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Rosales-Chimal S, Navarro-Cortez RO, Bello-Perez LA, Vargas-Torres A, Palma-Rodríguez HM. Optimal conditions for anthocyanin extract microencapsulation in taro starch: Physicochemical characterization and bioaccessibility in gastrointestinal conditions. Int J Biol Macromol 2023; 227:83-92. [PMID: 36535350 DOI: 10.1016/j.ijbiomac.2022.12.136] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/28/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
This research aims to find the optimal conditions for the encapsulation of anthocyanin extract using taro starch to increase the retention of active compounds (RAC), drying yield (DY), antioxidant activity, stability, and bioaccessibility. The microencapsulation is carried out in a spray dryer, and the process is optimized using response surface method (RSM), applying starch concentration and inlet air temperature as independent parameters. Optimized microcapsules (OM) are obtained with solids concentration of 20.9 % and inlet temperature of 125 °C as optimal conditions. Drying yield (70.1 %), moisture content (5.2 %), water activity (0.211), phenolic compound content (797.8 mg GAE/g), anthocyanins (469.4 mg CE3G/g), ABTS (116.2 mg AAE/g) and DPPH (104.4 mg AAE/g) are analyzed through RSM. Retention percentage in OM show values of 60 % in bioactive compounds up to four weeks of storage under accelerated storage conditions. Bioaccessibility of OM is 10 % higher than that observed in the extract without encapsulation during gastrointestinal digestion. The results in this study show that OM made with taro starch and obtained with RSM effectively protect through digestion and ensure bioactive compound stability during storage.
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Affiliation(s)
- Sylvia Rosales-Chimal
- Universidad Autónoma del Estado de Hidalgo, Instituto de Ciencias Agropecuarias, Av. Universidad km 1, Rancho Universitario, C.P. 43600 Tulancingo de Bravo, Hidalgo, Mexico
| | - Ricardo O Navarro-Cortez
- Universidad Autónoma del Estado de Hidalgo, Instituto de Ciencias Agropecuarias, Av. Universidad km 1, Rancho Universitario, C.P. 43600 Tulancingo de Bravo, Hidalgo, Mexico
| | - Luis A Bello-Perez
- Instituto Politécnico Nacional, CEPROBI, Km 6 Carr. Yautepec-Jojutla, Calle Ceprobi No. 8, Apartado Postal 24, Yautepec 62731, Mexico
| | - Apolonio Vargas-Torres
- Universidad Autónoma del Estado de Hidalgo, Instituto de Ciencias Agropecuarias, Av. Universidad km 1, Rancho Universitario, C.P. 43600 Tulancingo de Bravo, Hidalgo, Mexico
| | - Heidi M Palma-Rodríguez
- Universidad Autónoma del Estado de Hidalgo, Instituto de Ciencias Agropecuarias, Av. Universidad km 1, Rancho Universitario, C.P. 43600 Tulancingo de Bravo, Hidalgo, Mexico.
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A carbon-carbon hydrolase from human gut probiotics Flavonifractor plautii catalyzes phloretin conversion. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Guo B, Chou F, Huang L, Yin F, Fang J, Wang JB, Jia Z. Recent insights into oxidative metabolism of quercetin: catabolic profiles, degradation pathways, catalyzing metalloenzymes and molecular mechanisms. Crit Rev Food Sci Nutr 2022; 64:1312-1339. [PMID: 36037033 DOI: 10.1080/10408398.2022.2115456] [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] [Indexed: 11/03/2022]
Abstract
Quercetin is the most abundant polyphenolic flavonoid (flavonol subclass) in vegetal foods and medicinal plants. This dietary chemopreventive agent has drawn significant interest for its multiple beneficial health effects ("polypharmacology") largely associated with the well-documented antioxidant properties. However, controversies exist in the literature due to its dual anti-/pro-oxidant character, poor stability/bioavailability but multifaceted bioactivities, leaving much confusion as to its exact roles in vivo. Increasing evidence indicates that a prior oxidation of quercetin to generate an array of chemical diverse products with redox-active/electrophilic moieties is emerging as a new linkage to its versatile actions. The present review aims to provide a comprehensive overview of the oxidative conversion of quercetin by systematically analyzing the current quercetin-related knowledge, with a particular focus on the complete spectrum of metabolite products, the enzymes involved in the catabolism and the underlying molecular mechanisms. Herein we review and compare the oxidation pathways, protein structures and catalytic patterns of the related metalloenzymes (phenol oxidases, heme enzymes and specially quercetinases), aiming for a deeper mechanistic understanding of the unusual biotransformation behaviors of quercetin and its seemingly controversial biological functions.
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Affiliation(s)
- Bin Guo
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, China
| | - Fang Chou
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, China
| | - Libin Huang
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, China
| | - Feifan Yin
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, China
| | - Jing Fang
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, China
| | - Jian-Bo Wang
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha, China
| | - Zongchao Jia
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
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Bonneville J, Rondeau P, Veeren B, Faccini J, Gonthier MP, Meilhac O, Vindis C. Antioxidant and Cytoprotective Properties of Polyphenol-Rich Extracts from Antirhea borbonica and Doratoxylon apetalum against Atherogenic Lipids in Human Endothelial Cells. Antioxidants (Basel) 2021; 11:antiox11010034. [PMID: 35052538 PMCID: PMC8773103 DOI: 10.3390/antiox11010034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/19/2021] [Accepted: 12/22/2021] [Indexed: 11/16/2022] Open
Abstract
The endothelial integrity is the cornerstone of the atherogenic process. Low-density lipoprotein (LDL) oxidation occurring within atheromatous plaques leads to deleterious vascular effects including endothelial cell cytotoxicity. The aim of this study was to evaluate the vascular antioxidant and cytoprotective effects of polyphenol-rich extracts from two medicinal plants from the Reunion Island: Antirhea borbonica (A. borbonica), Doratoxylon apetalum (D. apetalum). The polyphenol-rich extracts were obtained after dissolving each dry plant powder in an aqueous acetonic solution. Quantification of polyphenol content was achieved by the Folin–Ciocalteu assay and total phenol content was expressed as g gallic acid equivalent/100 g plant powder (GAE). Human vascular endothelial cells were incubated with increasing concentrations of polyphenols (1–50 µM GAE) before stimulation with oxidized low-density lipoproteins (oxLDLs). LDL oxidation was assessed by quantification of hydroperoxides and thiobarbituric acid reactive substances (TBARS). Intracellular oxidative stress and antioxidant activity (catalase and superoxide dismutase) were measured after stimulation with oxLDLs. Cell viability and apoptosis were quantified using different assays (MTT, Annexin V staining, cytochrome C release, caspase 3 activation and TUNEL test). A. borbonica and D. apetalum displayed high levels of polyphenols and limited LDL oxidation as well as oxLDL-induced intracellular oxidative stress in endothelial cells. Polyphenol extracts of A. borbonica and D. apetalum exerted a protective effect against oxLDL-induced cell apoptosis in a dose-dependent manner (10, 25, and 50 µM GAE) similar to that observed for curcumin, used as positive control. All together, these results showed significant antioxidant and antiapoptotic properties for two plants of the Reunion Island pharmacopeia, A. borbonica and D. apetalum, suggesting their therapeutic potential to prevent cardiovascular diseases by limiting LDL oxidation and protecting the endothelium.
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Affiliation(s)
- Jonathan Bonneville
- Clinical Investigation Center (CIC) 1436, INSERM 1048, 31400 Toulouse, France; (J.B.); (J.F.)
- Université de La Réunion, INSERM, UMR 1188 Diabete athérothrombose Réunion Océan Indien (DéTROI), 97400 La Réunion, France; (P.R.); (B.V.); (M.-P.G.)
| | - Philippe Rondeau
- Université de La Réunion, INSERM, UMR 1188 Diabete athérothrombose Réunion Océan Indien (DéTROI), 97400 La Réunion, France; (P.R.); (B.V.); (M.-P.G.)
| | - Bryan Veeren
- Université de La Réunion, INSERM, UMR 1188 Diabete athérothrombose Réunion Océan Indien (DéTROI), 97400 La Réunion, France; (P.R.); (B.V.); (M.-P.G.)
| | - Julien Faccini
- Clinical Investigation Center (CIC) 1436, INSERM 1048, 31400 Toulouse, France; (J.B.); (J.F.)
- Université de Toulouse III Paul Sabatier, 31400 Toulouse, France
| | - Marie-Paule Gonthier
- Université de La Réunion, INSERM, UMR 1188 Diabete athérothrombose Réunion Océan Indien (DéTROI), 97400 La Réunion, France; (P.R.); (B.V.); (M.-P.G.)
| | - Olivier Meilhac
- Université de La Réunion, INSERM, UMR 1188 Diabete athérothrombose Réunion Océan Indien (DéTROI), 97400 La Réunion, France; (P.R.); (B.V.); (M.-P.G.)
- CHU de La Réunion, 97448 Saint-Pierre, La Réunion, France
- Correspondence: (O.M.); (C.V.)
| | - Cécile Vindis
- Clinical Investigation Center (CIC) 1436, INSERM 1048, 31400 Toulouse, France; (J.B.); (J.F.)
- Université de Toulouse III Paul Sabatier, 31400 Toulouse, France
- Correspondence: (O.M.); (C.V.)
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Enhancing Bioavailability of Nutraceutically Used Resveratrol and Other Stilbenoids. Nutrients 2021; 13:nu13093095. [PMID: 34578972 PMCID: PMC8470508 DOI: 10.3390/nu13093095] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 02/07/2023] Open
Abstract
Stilbenoids are interesting natural compounds with pleiotropic in vitro and in vivo activity. Their well-documented biological properties include anti-inflammatory effects, anticancer effects, effects on longevity, and many others. Therefore, they are nowadays commonly found in foods and dietary supplements, and used as a part of treatment strategy in various types of diseases. Bioactivity of stilbenoids strongly depends on different types of factors such as dosage, food composition, and synergistic effects with other plant secondary metabolites such as polyphenols or vitamins. In this review, we summarize the existing in vitro, in vivo, and clinical data from published studies addressing the optimization of bioavailability of stilbenoids. Stilbenoids face low bioavailability due to their chemical structure. This can be improved by the use of novel drug delivery systems or enhancers, which are discussed in this review. Current in vitro and in vivo evidence suggests that both approaches are very promising and increase the absorption of the original substance by several times. However, data from more clinical trials are required.
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Antileishmanial Activity of Lignans, Neolignans, and Other Plant Phenols. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2021; 115:115-176. [PMID: 33797642 DOI: 10.1007/978-3-030-64853-4_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Secondary metabolites (SM) from organisms have served medicinal chemists over the past two centuries as an almost inexhaustible pool of new drugs, drug-like skeletons, and chemical probes that have been used in the "hunt" for new biologically active molecules with a "beneficial effect on human mind and body." Several secondary metabolites, or their derivatives, have been found to be the answer in the quest to search for new approaches to treat or even eradicate many types of diseases that oppress humanity. A special place among SM is occupied by lignans and neolignans. These phenolic compounds are generated biosynthetically via radical coupling of two phenylpropanoid monomers, and are known for their multitarget activity and low toxicity. The disadvantage of the relatively low specificity of phenylpropanoid-based SM turns into an advantage when structural modifications of these skeletons are made. Indeed, phenylpropanoid-based SM previously have proven to offer great potential as a starting point in drug development. Compounds such as Warfarin® (a coumarin-based anticoagulant) as well as etoposide and teniposide (podophyllotoxin-based anticancer drugs) are just a few examples. At the beginning of the third decade of the twenty-first century, the call for the treatment of more than a dozen rare or previously "neglected" diseases remains for various reasons unanswered. Leishmaniasis, a neglected disease that desperately needs new ways of treatment, is just one of these. This disease is caused by more than 20 leishmanial parasites that are pathogenic to humans and are spread by as many as 800 sandfly species across subtropical areas of the world. With continuing climate changes, the presence of Leishmania parasites and therefore leishmaniasis, the disease caused by these parasites, is spreading from previous locations to new areas. Thus, leishmaniasis is affecting each year a larger proportion of the world's population. The choice of appropriate leishmaniasis treatment depends on the severity of the disease and its form of manifestation. The success of current drug therapy is often limited, due in most cases to requiring long hospitalization periods (weeks to months) and the toxicity (side effects) of administered drugs, in addition to the increasing resistance of the parasites to treatment. It is thus important to develop new drugs and treatments that are less toxic, can overcome drug resistance, and require shorter periods of treatment. These aspects are especially important for the populations of developing countries. It was reported that several phenylpropanoid-based secondary metabolites manifest interesting antileishmanial activities and are used by various indigenous people to treat leishmaniasis. In this chapter, the authors shed some light on the various biological activities of phenylpropanoid natural products, with the main focus being on their possible applications in the context of antileishmanial treatment.
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Fernandes-Negreiros MM, Batista LANC, Silva Viana RL, Araujo Sabry D, Paiva AAO, Paiva WS, Machado RIA, de Sousa Junior FL, de Lima Pontes D, Vitoriano JDO, Alves Junior C, Lanzi Sassaki G, Rocha HAO. Gallic Acid-Laminarin Conjugate Is a Better Antioxidant than Sulfated or Carboxylated Laminarin. Antioxidants (Basel) 2020; 9:antiox9121192. [PMID: 33260982 PMCID: PMC7759860 DOI: 10.3390/antiox9121192] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/19/2020] [Accepted: 11/21/2020] [Indexed: 12/11/2022] Open
Abstract
A 12.4 kDa laminarin (LM) composed of β(1→3)-glucan with β(1→6)-branches was extracted from brown seaweed Lobophora variegata and modified via carboxylation using dielectric barrier discharge (LMC), conjugation with gallic acid (LMG), and sulfation (LMS). Analyses of the chemical composition of LMC, LMG, and LMS yielded 11.7% carboxyl groups, 1.5% gallic acid, and 1.4% sulfate content, respectively. Antioxidant activities of native and modified laminarins were assessed using six different in vitro methods. Sulfation stopped the antioxidant activities of LM. On the other hand, carboxylation improved cooper chelation (1.2 times). LMG was found to be a more efficient antioxidant agent than LM in terms of copper chelation (1.3 times), reducing power (1.3 times), and total antioxidant capacity (80 times). Gallic acid conjugation was further confirmed using Fourier transform infrared spectroscopy (FT-IR) and one- and two-dimensional NMR spectroscopy analyses. LMG also did not induce cell death or affect the cell cycle of Madin–Darby canine kidney (MDCK) cells. On the contrary, LMG protected MDCK cells from H2O2-induced oxidative damage. Taken together, these results show that LMG has the potent antioxidant capacity, and, therefore, potential applications in pharmacological and functional food products.
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Affiliation(s)
- Marília Medeiros Fernandes-Negreiros
- Department of Biochemistry, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte 59.078-970, Brazil; (M.M.F.-N.); (L.A.N.C.B.); (R.L.S.V.); (D.A.S.); (W.S.P.); (R.I.A.M.)
| | - Lucas Alighieri Neves Costa Batista
- Department of Biochemistry, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte 59.078-970, Brazil; (M.M.F.-N.); (L.A.N.C.B.); (R.L.S.V.); (D.A.S.); (W.S.P.); (R.I.A.M.)
| | - Rony Lucas Silva Viana
- Department of Biochemistry, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte 59.078-970, Brazil; (M.M.F.-N.); (L.A.N.C.B.); (R.L.S.V.); (D.A.S.); (W.S.P.); (R.I.A.M.)
| | - Diego Araujo Sabry
- Department of Biochemistry, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte 59.078-970, Brazil; (M.M.F.-N.); (L.A.N.C.B.); (R.L.S.V.); (D.A.S.); (W.S.P.); (R.I.A.M.)
| | | | - Weslley Souza Paiva
- Department of Biochemistry, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte 59.078-970, Brazil; (M.M.F.-N.); (L.A.N.C.B.); (R.L.S.V.); (D.A.S.); (W.S.P.); (R.I.A.M.)
| | - Raynara Iusk Araujo Machado
- Department of Biochemistry, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte 59.078-970, Brazil; (M.M.F.-N.); (L.A.N.C.B.); (R.L.S.V.); (D.A.S.); (W.S.P.); (R.I.A.M.)
| | - Francimar Lopes de Sousa Junior
- Laboratório de Química de Coordenação e Polímeros-LQCPol, Instituto de Química, Universidade Federal do Rio Grande do Norte—UFRN, Natal-RN 59.078-970, Brazil; (F.L.d.S.J.); (D.d.L.P.)
| | - Daniel de Lima Pontes
- Laboratório de Química de Coordenação e Polímeros-LQCPol, Instituto de Química, Universidade Federal do Rio Grande do Norte—UFRN, Natal-RN 59.078-970, Brazil; (F.L.d.S.J.); (D.d.L.P.)
| | - Jussier de Oliveira Vitoriano
- Centro Integrado de Inovação Tecnológica do Semiárido (CiTED), Universidade Federal Rural do Semi-Árido, Mossoró 59.625-900, Brazil; (J.d.O.V.); (C.A.J.)
| | - Clodomiro Alves Junior
- Centro Integrado de Inovação Tecnológica do Semiárido (CiTED), Universidade Federal Rural do Semi-Árido, Mossoró 59.625-900, Brazil; (J.d.O.V.); (C.A.J.)
| | | | - Hugo Alexandre Oliveira Rocha
- Department of Biochemistry, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte 59.078-970, Brazil; (M.M.F.-N.); (L.A.N.C.B.); (R.L.S.V.); (D.A.S.); (W.S.P.); (R.I.A.M.)
- Correspondence: ; Tel.: +55-84-99999-9561
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11
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Laser scribed graphene: A novel platform for highly sensitive detection of electroactive biomolecules. Biosens Bioelectron 2020; 168:112509. [DOI: 10.1016/j.bios.2020.112509] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/03/2020] [Accepted: 08/09/2020] [Indexed: 01/05/2023]
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12
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Liu ZQ. Multicomponent Reactions for Integrating Multiple Functional Groups into an Antioxidant. CHEM REC 2020; 20:1516-1529. [PMID: 33063420 DOI: 10.1002/tcr.202000080] [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: 07/10/2020] [Revised: 09/14/2020] [Accepted: 09/14/2020] [Indexed: 11/07/2022]
Abstract
A large number of convincing evidences has revealed the correlation of the pathogeny of diseases with the oxidative damages of DNA, protein, biomembrane, and other biological species, while supplementation of antioxidants is demonstrated to be a promising way to avoid, at least, rectify the unbalance redox status in vivo. Although many endeavors have focused on synthesis of antioxidants, a main hurdle still hinders the wide usages of synthetic antioxidants because of low bioavailability and potential cytotoxicity. The search for antioxidants with multiple functional groups being recognized by different receptors becomes a much sought by researchers, and multicomponent reactions (MCRs) provide with powerful tools for the construction of multifunctional antioxidants. Presented herein is a personal account on the application of MCRs for the synthesis of multifunctional antioxidants, while radical-induced oxidation of DNA acts as the experimental system for evaluating antioxidative effect. Concretely, the Biginelli three-component reaction (3CR) affords such a dihydropyrimidine scaffold that the tautomerization between C=S and C-SH leads to antioxidative effect. The Povarov 3CR is able to integrate multiple antioxidative groups, i. e., ferrocenyl and -N(CH3 )2 , into a quinoline scaffold, while the Groebke 3CR provides with imidazo[1,2-a]pyridine skeleton for inhibiting DNA oxidation. Additionally, the Knoevenagel-related MCRs also become efficient strategies for achieving radical-scavengers. On the other hand, the Ugi 4CR and Passerini 3CR result in the dipeptide and α-acyloxycarboxamide, respectively, with the benefit for the integration of antioxidative features by aliphatic chains. Therefore, MCRs have emerged as efficient tools for integrating multiple antioxidative features into one molecule in order to meet with complicated requirements from various biological surroundings.
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Affiliation(s)
- Zai-Qun Liu
- Department of Organic Chemistry, College of Chemistry, Jilin University, Changchun, 130021, People's Republic of China
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13
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Tung WC, Rizzo B, Dabbagh Y, Saraswat S, Romanczyk M, Codorniu-Hernández E, Rebollido-Rios R, Needs PW, Kroon PA, Rakotomanomana N, Dangles O, Weikel K, Vinson J. Polyphenols bind to low density lipoprotein at biologically relevant concentrations that are protective for heart disease. Arch Biochem Biophys 2020; 694:108589. [PMID: 33010229 DOI: 10.1016/j.abb.2020.108589] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/14/2020] [Accepted: 09/16/2020] [Indexed: 02/05/2023]
Abstract
There is ample evidence in the epidemiological literature that polyphenols, the major non-vitamin antioxidants in plant foods and beverages, have a beneficial effect on heart disease. Until recently other mechanisms which polyphenols exhibit such as cell signaling and regulating nitric oxide bioavailability have been investigated. The oxidation theory of atherosclerosis implicates LDL oxidation as the beginning step in this process. Nine polyphenols from eight different classes and several of their O-methylether, O-glucuronide and O-sulfate metabolites have been shown in this study to bind to the lipoproteins and protect them from oxidation at lysosomal/inflammatory pH (5.2), and physiological pH (7.4). Polyphenols bind to the apoprotein at pH 7.4 with Kb > 106 M-1 and the number of molecules of polyphenols bound per LDL particle under saturation conditions varied from 0.4 for ferulic acid to 13.1 for quercetin. Competition studies between serum albumin and LDL show that substantial lipoprotein binding occurs even in the presence of a great molar excess of albumin, the major blood protein. These in vitro results are borne out by published human supplementation studies showing that polyphenol metabolites from red wine, olive oil and coffee are found in LDL even after an overnight fast. A single human supplementation with various fruit juices, coffee and tea also produced an ex vivo protection against lipoprotein oxidation under postprandial conditions. This in vivo binding is heart-protective based on published olive oil consumption studies. Relevant to heart disease, we hypothesize that the binding of polyphenols and metabolites to LDL functions as a transport mechanism to carry these antioxidants to the arterial intima, and into endothelial cells and macrophages. Extracellular and intracellular polyphenols and their metabolites are heart-protective by many mechanisms and can also function as potent "intraparticle" and intracellular antioxidants due to their localized concentrations that can reach as high as the micromolar level. Low plasma concentrations make polyphenols and their metabolites poor plasma antioxidants but their concentration in particles such as lipoproteins and cells is high enough for polyphenols to provide cardiovascular protection by direct antioxidant effects and by other mechanisms such as cell signaling.
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Affiliation(s)
- Wei-Cheng Tung
- Department of Chemistry, Loyola Science Center, University of Scranton, Scranton, PA, 18510, USA
| | - Bryan Rizzo
- Department of Chemistry, Loyola Science Center, University of Scranton, Scranton, PA, 18510, USA
| | - Yusef Dabbagh
- Department of Chemistry, Loyola Science Center, University of Scranton, Scranton, PA, 18510, USA
| | - Suraj Saraswat
- Department of Chemistry, Loyola Science Center, University of Scranton, Scranton, PA, 18510, USA
| | - Mark Romanczyk
- Department of Chemistry, Loyola Science Center, University of Scranton, Scranton, PA, 18510, USA
| | - Edelsys Codorniu-Hernández
- Department of Chemistry, University of Calgary, 2500 University Drive, NW, Calgary, Alberta, T2N1N4, Canada
| | - Rocio Rebollido-Rios
- Research Group Bioinformatics, Faculty of Biology, Center for Medical Biotechnology, University of Duisburg-Essen, Universitätsstrase 1-5, 45141, Essen, Germany; Faculty of Medicine and University Hospital of Cologne, Department of Internal Medicine, University of Cologne, 50937, Cologne, Germany
| | - Paul W Needs
- Quadram Institute Bioscience, Norwich Research Park, Norwich, Norfolk, NR4 7UQ, UK
| | - Paul A Kroon
- Quadram Institute Bioscience, Norwich Research Park, Norwich, Norfolk, NR4 7UQ, UK
| | | | - Olivier Dangles
- Avignon University, INRAE, UMR408 SQPOV, 84000, Avignon, France
| | - Karen Weikel
- Department of Chemistry, Loyola Science Center, University of Scranton, Scranton, PA, 18510, USA
| | - Joe Vinson
- Department of Chemistry, Loyola Science Center, University of Scranton, Scranton, PA, 18510, USA.
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14
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Samaniego I, Espin S, Cuesta X, Arias V, Rubio A, Llerena W, Angós I, Carrillo W. Analysis of Environmental Conditions Effect in the Phytochemical Composition of Potato ( Solanum tuberosum) Cultivars. PLANTS 2020; 9:plants9070815. [PMID: 32610590 PMCID: PMC7412447 DOI: 10.3390/plants9070815] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 12/11/2022]
Abstract
Crop productivity and food quality are affected by environmental conditions. The objective of this work was to evaluate the effect of the environment on the concentration of phytochemical components in several potato (Solanum tuberosum) cultivars. The content of vitamin C (ascorbic acid, AA), the total carotenoids content (TCC), the total polyphenols content (TPC), and the total anthocyanins content (TAC) of 11 potatoes varieties grown in Ecuador (Cutuglahua, Pujilí, and Pilahuín) was measured by the spectrophotometric method. The antioxidant capacity (AC) of potato cultivars was evaluated by the ABTS method. The AA concentration ranged between 12.67 to 39.49 mg/100g fresh weight (FW), the TCC ranged between 50.00 and 1043.50 μg/100g FW, the TPC ranged between 0.41 and 3.25 g of gallic acid equivalents (GAE)/kg dry weight (DW), the TAC ranged between 2.74 and 172.53 μg/g FW and finally the AC ranged between 36.80 and 789.19 μg of trolox equivalents (TE)/g FW. Genotypes (G), location (L), and interaction (G x L) were significant at p < 0.01. The genotype (G) showed a greater variation in the phytochemical contents. AA and TPC showed the highest correlation with the AC. A selection of genotypes with these characteristics can be used to develop germplasms with a high AC.
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Affiliation(s)
- Iván Samaniego
- Department of Nutrition and Quality, National Institute of Agricultural Research (INIAP), Panamericana Sur Km. 1, Mejia 170516, Ecuador; (I.S.); (S.E.); (X.C.); (V.A.); (A.R.)
| | - Susana Espin
- Department of Nutrition and Quality, National Institute of Agricultural Research (INIAP), Panamericana Sur Km. 1, Mejia 170516, Ecuador; (I.S.); (S.E.); (X.C.); (V.A.); (A.R.)
| | - Xavier Cuesta
- Department of Nutrition and Quality, National Institute of Agricultural Research (INIAP), Panamericana Sur Km. 1, Mejia 170516, Ecuador; (I.S.); (S.E.); (X.C.); (V.A.); (A.R.)
| | - Verónica Arias
- Department of Nutrition and Quality, National Institute of Agricultural Research (INIAP), Panamericana Sur Km. 1, Mejia 170516, Ecuador; (I.S.); (S.E.); (X.C.); (V.A.); (A.R.)
| | - Armando Rubio
- Department of Nutrition and Quality, National Institute of Agricultural Research (INIAP), Panamericana Sur Km. 1, Mejia 170516, Ecuador; (I.S.); (S.E.); (X.C.); (V.A.); (A.R.)
| | - Wilma Llerena
- Facultad de Ciencias Pecuarias, Ingeniería en Alimentos, Universidad Técnica Estatal de Quevedo, Km 7 1/2 vía Quevedo-El Empalme, Los Ríos 120313, Ecuador;
| | - Ignacio Angós
- Departamento de Agronomía, Biotecnología y Alimentación, Edificio Los Olivos, Campus Arrosadia, Universidad Pública de Navarra (UPNA), Pamplona 31006, Espana;
| | - Wilman Carrillo
- Department of Research, Universidad Técnica de Babahoyo, Av. Universitaria Km 21/2 Av. Montalvo., Babahoyo 120301, Ecuador
- Correspondence: ; Tel.: +593-980288016
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15
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Volpp L, Ferianec V, Ježovičová M, Ďuračková Z, Scherf-Clavel O, Högger P. Constituents and Metabolites of a French Oak Wood Extract (Robuvit ®) in Serum and Blood Cell Samples of Women Undergoing Hysterectomy. Front Pharmacol 2020; 11:74. [PMID: 32174825 PMCID: PMC7054277 DOI: 10.3389/fphar.2020.00074] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 01/24/2020] [Indexed: 01/07/2023] Open
Abstract
Ellagitannins are signature constituents of oak wood and their consumption has been associated with various health benefits. In vivo, they undergo metabolic degradation including gut microbial metabolism yielding urolithins. Only limited data is available about compounds being present in blood after intake of an extract from French oak wood, Robuvit®. In the course of a randomized, double-blind, controlled clinical investigation, 66 patients undergoing hysterectomy received placebo or 300 mg Robuvit® per day before and over 8 weeks after surgery. Serum and blood cell samples were analyzed by liquid chromatography electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS). The number of urolithin producers and the urolithin levels increased after intake of Robuvit®. In serum samples, the median concentration of urolithin A was 14.0 ng/ml [interquartile range (IQR) 57.4] after 8 weeks. Urolithin B was determined at 22.3 ng/ml (IQR 12.6), urolithin C at 2.66 ng/ml (IQR 2.08). In blood cells, lower concentrations and only urolithins A and B were detected. A statistically significant association of lower post-surgical pain scores with metabotype A was detected (p < 0.05). To conclude, supplementation with French oak wood extract raised urolithin generation in patients and suggested health advantages for urolithin-producers.
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Affiliation(s)
- Linda Volpp
- Institut für Pharmazie und Lebensmittelchemie, Universität Würzburg, Würzburg, Germany
| | - Vladimír Ferianec
- 2nd Department of Gynecology and Obstetrics, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Miriam Ježovičová
- Faculty of Medicine, Institute of Medical Chemistry, Biochemistry and Clinical Biochemistry, Comenius University, Bratislava, Slovakia
| | - Zdeňka Ďuračková
- Faculty of Medicine, Institute of Medical Chemistry, Biochemistry and Clinical Biochemistry, Comenius University, Bratislava, Slovakia
| | - Oliver Scherf-Clavel
- Institut für Pharmazie und Lebensmittelchemie, Universität Würzburg, Würzburg, Germany
| | - Petra Högger
- Institut für Pharmazie und Lebensmittelchemie, Universität Würzburg, Würzburg, Germany
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16
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Yin F, Wang X, Hu Y, Xie H, Liu X, Qin L, Zhang J, Zhou D, Shahidi F. Evaluation of Absorption and Plasma Pharmacokinetics of Tyrosol Acyl Esters in Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:1248-1256. [PMID: 31927921 DOI: 10.1021/acs.jafc.9b05112] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Lipophenols are regarded as an emerging source of functional food ingredients. However, little is known about their in vivo digestion, absorption, and metabolism. Thus, the pharmacokinetic characteristics in rat and the gut microbial degradation of tyrosol acyl esters (TYr-Es) with fatty acids of C12:0, C18:0, and C18:2 were investigated for the first time. Major metabolites including tyrosol sulfate and tyrosol glucuronide, rather than the parent compounds, were detected in rat plasma after oral administration of TYr-Es. The increased plasma half-life (T1/2) and mean residence time demonstrated that TYr-Es display a longer duration of action in vivo than TYr, potentially leading to higher oral bioavailability. TYr-Es could be hydrolyzed by the gut microbiota to free TYr, which may result in the appearance of the second absorption peak in pharmacokinetic profiles. Therefore, TYr-Es exhibit improved bioavailability compared to that of TYr because of their prolonged duration of action.
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Affiliation(s)
- Fawen Yin
- School of Food Science and Technology , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
- National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
| | - Xinmiao Wang
- School of Food Science and Technology , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
| | - Yuanyuan Hu
- School of Food Science and Technology , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
| | - Hongkai Xie
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing 100083 , People's Republic of China
| | - Xiaoyang Liu
- School of Food Science and Technology , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
- National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
| | - Lei Qin
- School of Food Science and Technology , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
- National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
| | - Jianghua Zhang
- School of Food Science and Technology , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
| | - Dayong Zhou
- School of Food Science and Technology , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
- National Engineering Research Center of Seafood , Dalian Polytechnic University , Dalian 116034 , People's Republic of China
| | - Fereidoon Shahidi
- Department of Biochemistry , Memorial University of Newfoundland , St. John's , Newfoundland A1B 3X9 , Canada
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