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Santos ACC, Batista GC, Cerqueira RC, Lisboa MG, Correa JL, Rodrigues TS, da Silva MNT, Bittar VP, Malta SM, Dos Santos NCL, Espindola FS, Bonetti AM, Ueira-Vieira C. Green synthesis of silver nanoparticle using pollen extract from Tetragonisca angustula a stingless bee. DISCOVER NANO 2024; 19:92. [PMID: 38801473 PMCID: PMC11130103 DOI: 10.1186/s11671-024-04038-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
This study explores the green synthesis of silver nanoparticles (AgNPs) using a methanolic extract of fermented pollen from Tetragonisca angustula, a species of stingless bees. The AgNPs exhibit spherical morphology, low charge values, and suspension stability, with their unique composition attributed to elements from the pollen extract. Antioxidant assays show comparable activity between the pollen extract and AgNPs, emphasizing the retention of antioxidant effects. The synthesized AgNPs demonstrate antimicrobial activity against multidrug-resistant bacteria, highlighting their potential in combating bacterial resistance. The AgNPs exhibit no toxic effects on Drosophila melanogaster and even enhance the hatching rate of eggs. The study underscores the innovative use of stingless bee pollen extract in green synthesis, offering insights into the varied applications of AgNPs in biomedicine.
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Affiliation(s)
- Ana Carolina Costa Santos
- Laboratory of Genetics, Institute of Biotechnology, Federal University of Uberlândia, Uberlandia, Brazil
| | - Gabriela Carvalho Batista
- Laboratory of Genetics, Institute of Biotechnology, Federal University of Uberlândia, Uberlandia, Brazil
| | | | - Mariana Gonçalves Lisboa
- Laboratory of Genetics, Institute of Biotechnology, Federal University of Uberlândia, Uberlandia, Brazil
| | - Joberth Lee Correa
- Laboratory of Genetics, Institute of Biotechnology, Federal University of Uberlândia, Uberlandia, Brazil
| | - Tamiris Sabrina Rodrigues
- Laboratory of Genetics, Institute of Biotechnology, Federal University of Uberlândia, Uberlandia, Brazil
| | - Murillo Néia Thomaz da Silva
- Laboratory of Nanobiotechnology, Institute of Biotechnology, Federal University of Uberlândia, Uberlandia, Brazil
| | - Vinícius Prado Bittar
- Laboratory of Biochemistry and Molecular Biology, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Brazil
| | - Serena Mares Malta
- Laboratory of Genetics, Institute of Biotechnology, Federal University of Uberlândia, Uberlandia, Brazil
| | | | - Foued Salmen Espindola
- Laboratory of Biochemistry and Molecular Biology, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Brazil
| | - Ana Maria Bonetti
- Laboratory of Genetics, Institute of Biotechnology, Federal University of Uberlândia, Uberlandia, Brazil
| | - Carlos Ueira-Vieira
- Laboratory of Genetics, Institute of Biotechnology, Federal University of Uberlândia, Uberlandia, Brazil.
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2
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Xin S, Zhang H, Sun J, Mao X. Characterization and Hydrolysis Mechanism Analysis of a Cold-Adapted Trypsin-Like Protease from Antarctic Krill. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:9955-9966. [PMID: 38628059 DOI: 10.1021/acs.jafc.4c00322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Cold-adapted proteases are capable of efficient protein hydrolysis at reduced temperatures, which offer significant potential applications in the area of low temperature food processing. In this paper, we attempted to characterize cold-adapted proteases from Antarctic krill. Antarctic krill possesses an extremely active autolytic enzyme system in their bodies, and the production of peptides and free amino acids accompanies the rapid breakdown of muscle proteins following the death. The crucial role of trypsin in this process is recognized. A cold-adapted trypsin named OUC-Pp-20 from Antarctic krill genome was cloned and expressed in Pichia pastoris. Recombinant trypsin is a monomeric protein of 26.8 ± 1.0 kDa with optimum reaction temperature at 25 °C. In addition, the catalytic specificity of OUC-Pp-20 was assessed by identifying its hydrolysis sites through LC-MS/MS. OUC-Pp-20 appeared to prefer Gln and Asn at the P1 position, which is an amino acid with an amide group in its side chain. Hydrolysis reactions on milk and shrimp meat revealed that it can effectively degrade allergenic components in milk and arginine kinase in shrimp meat. These findings update the current knowledge of cold-adapted trypsin and demonstrate the potential application of OUC-Pp-20 in low temperature food processing.
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Affiliation(s)
- Shanglin Xin
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, PR China
- Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, PR China
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, PR China
| | - Haiyang Zhang
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, PR China
- Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, PR China
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, PR China
| | - Jianan Sun
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, PR China
- Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, PR China
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, PR China
| | - Xiangzhao Mao
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, PR China
- Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, PR China
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, PR China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, PR China
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3
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Hesamzadeh P, Seif A, Mahmoudzadeh K, Ganjali Koli M, Mostafazadeh A, Nayeri K, Mirjafary Z, Saeidian H. De novo antioxidant peptide design via machine learning and DFT studies. Sci Rep 2024; 14:6473. [PMID: 38499731 PMCID: PMC10948870 DOI: 10.1038/s41598-024-57247-z] [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: 12/29/2023] [Accepted: 03/15/2024] [Indexed: 03/20/2024] Open
Abstract
Antioxidant peptides (AOPs) are highly valued in food and pharmaceutical industries due to their significant role in human function. This study introduces a novel approach to identifying robust AOPs using a deep generative model based on sequence representation. Through filtration with a deep-learning classification model and subsequent clustering via the Butina cluster algorithm, twelve peptides (GP1-GP12) with potential antioxidant capacity were predicted. Density functional theory (DFT) calculations guided the selection of six peptides for synthesis and biological experiments. Molecular orbital representations revealed that the HOMO for these peptides is primarily localized on the indole segment, underscoring its pivotal role in antioxidant activity. All six synthesized peptides exhibited antioxidant activity in the DPPH assay, while the hydroxyl radical test showed suboptimal results. A hemolysis assay confirmed the non-hemolytic nature of the generated peptides. Additionally, an in silico investigation explored the potential inhibitory interaction between the peptides and the Keap1 protein. Analysis revealed that ligands GP3, GP4, and GP12 induced significant structural changes in proteins, affecting their stability and flexibility. These findings highlight the capability of machine learning approaches in generating novel antioxidant peptides.
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Affiliation(s)
- Parsa Hesamzadeh
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Abdolvahab Seif
- Dipartimento di Fisica, Universita' di Padova, Via Marzolo 8, 35131, Padua, Italy
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, 10125, Turin, Italy
| | - Kazem Mahmoudzadeh
- Department of Organic Chemistry and Oil, Faculty of Chemistry, Shahid Beheshti University, Tehran, Iran
| | | | - Amrollah Mostafazadeh
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Kosar Nayeri
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
| | - Zohreh Mirjafary
- Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hamid Saeidian
- Department of Science, Payame Noor University (PNU), PO Box: 19395-4697, Tehran, Iran.
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4
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Rathnam SS, Deepak T, Sahoo BN, Meena T, Singh Y, Joshi A. Metallic Nanocarriers for Therapeutic Peptides: Emerging Solutions Addressing the Delivery Challenges in Brain Ailments. J Pharmacol Exp Ther 2024; 388:39-53. [PMID: 37875308 DOI: 10.1124/jpet.123.001689] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 10/01/2023] [Accepted: 10/10/2023] [Indexed: 10/26/2023] Open
Abstract
Peptides and proteins have recently emerged as efficient therapeutic alternatives to conventional therapies. Although they emerged a few decades back, extensive exploration of various ailments or disorders began recently. The drawbacks of current chemotherapies and irradiation treatments, such as drug resistance and damage to healthy tissues, have enabled the rise of peptides in the quest for better prospects. The chemical tunability and smaller size make them easy to design selectively for target tissues. Other remarkable properties include antifungal, antiviral, anti-inflammatory, protection from hemorrhage stroke, and as therapeutic agents for gastric disorders and Alzheimer and Parkinson diseases. Despite these unmatched properties, their practical applicability is often hindered due to their weak susceptibility to enzymatic digestion, serum degradation, liver metabolism, kidney clearance, and immunogenic reactions. Several methods are adapted to increase the half-life of peptides, such as chemical modifications, fusing with Fc fragment, change in amino acid composition, and carrier-based delivery. Among these, nanocarrier-mediated encapsulation not only increases the half-life of the peptides in vivo but also aids in the targeted delivery. Despite its structural complexity, they also efficiently deliver therapeutic molecules across the blood-brain barrier. Here, in this review, we tried to emphasize the possible potentiality of metallic nanoparticles to be used as an efficient peptide delivery system against brain tumors and neurodegenerative disorders. SIGNIFICANCE STATEMENT: In this review, we have emphasized the various therapeutic applications of peptides/proteins, including antimicrobial, anticancer, anti-inflammatory, and neurodegenerative diseases. We also focused on these peptides' challenges under physiological conditions after administration. We highlighted the importance and potentiality of metallic nanocarriers in the ability to cross the blood-brain barrier, increasing the stability and half-life of peptides, their efficiency in targeting the delivery, and their diagnostic applications.
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Affiliation(s)
- Shanmuga Sharan Rathnam
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
| | - Thirumalai Deepak
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
| | - Badri Narayana Sahoo
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
| | - Tanishq Meena
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
| | - Yogesh Singh
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
| | - Abhijeet Joshi
- Department of Biosciences and Biomedical Engineering (S.S.R., B.N.S., T.M., Y.S., A.J.), Indian Institute of Technology Indore, Simrol, India and Department of Biotechnology and Medical Engineering (T.D.), National Institute of Technology Rourkela, Rourkela, India
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5
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Gupta JK, Singh K. Pharmacological Potential of Bioactive Peptides for the Treatment of Diseases Associated with Alzheimer's and Brain Disorders. Curr Mol Med 2024; 24:962-979. [PMID: 37691200 DOI: 10.2174/1566524023666230907115753] [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: 06/19/2023] [Revised: 08/07/2023] [Accepted: 08/11/2023] [Indexed: 09/12/2023]
Abstract
Bioactive peptides are a promising class of therapeutics for the treatment of diseases associated with Alzheimer's and brain disorders. These peptides are derived from naturally occurring proteins and have been shown to possess a variety of beneficial properties. They may modulate neurotransmitter systems, reduce inflammation, and improve cognitive performance. In addition, bioactive peptides have the potential to target specific molecular pathways involved in the pathogenesis of Alzheimer's and brain disorders. For example, peptides have been shown to interact with amyloid-beta, a major component of amyloid plaques found in Alzheimer's disease, and have been shown to reduce its accumulation in the brain. Furthermore, peptides have been found to modulate the activity of glutamate receptors, which are important for memory and learning, as well as to inhibit the activity of enzymes involved in the formation of toxic amyloid-beta aggregates. Finally, bioactive peptides have the potential to reduce oxidative stress and inflammation, two major components of many neurological disorders. These peptides could be used alone or in combination with traditional pharmacological treatments to improve the management of diseases associated with Alzheimer's and brain disorders.
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Affiliation(s)
- Jeetendra Kumar Gupta
- Department of Pharmacology, Institute of Pharmaceutical Research, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Kuldeep Singh
- Department of Pharmacology, Institute of Pharmaceutical Research, GLA University, Mathura, 281406, Uttar Pradesh, India
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6
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Côco LZ, Aires R, Carvalho GR, Belisário EDS, Yap MKK, Amorim FG, Conde-Aranda J, Nogueira BV, Vasquez EC, Pereira TDMC, Campagnaro BP. Unravelling the Gastroprotective Potential of Kefir: Exploring Antioxidant Effects in Preventing Gastric Ulcers. Cells 2023; 12:2799. [PMID: 38132119 PMCID: PMC10742242 DOI: 10.3390/cells12242799] [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: 10/30/2023] [Revised: 11/28/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
The present study was conducted to evaluate the protective effect of milk kefir against NSAID-induced gastric ulcers. Male Swiss mice were divided into three groups: control (Vehicle; UHT milk at a dose of 0.3 mL/100 g), proton pump inhibitor (PPI; lansoprazole 30 mg/kg), and 4% milk kefir (Kefir; 0.3 mL/100 g). After 14 days of treatment, gastric ulcer was induced by oral administration of indomethacin (40 mg/kg). Reactive oxygen species (ROS), nitric oxide (NO), DNA content, cellular apoptosis, IL-10 and TNF-α levels, and myeloperoxidase (MPO) enzyme activity were determined. The interaction networks between NADPH oxidase 2 and kefir peptides 1-35 were determined using the Residue Interaction Network Generator (RING) webserver. Pretreatment with kefir for 14 days prevented gastric lesions. In addition, kefir administration reduced ROS production, DNA fragmentation, apoptosis, and TNF-α systemic levels. Simultaneously, kefir increased NO bioavailability in gastric cells and IL-10 systemic levels. A total of 35 kefir peptides showed affinity with NADPH oxidase 2. These findings suggest that the gastroprotective effect of kefir is due to its antioxidant and anti-inflammatory properties. Kefir could be a promising natural therapy for gastric ulcers, opening new perspectives for future research.
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Affiliation(s)
- Larissa Zambom Côco
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha 29102-920, ES, Brazil; (L.Z.C.); (R.A.); (G.R.C.); (E.d.S.B.); (E.C.V.); (T.d.M.C.P.)
| | - Rafaela Aires
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha 29102-920, ES, Brazil; (L.Z.C.); (R.A.); (G.R.C.); (E.d.S.B.); (E.C.V.); (T.d.M.C.P.)
| | - Glaucimeire Rocha Carvalho
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha 29102-920, ES, Brazil; (L.Z.C.); (R.A.); (G.R.C.); (E.d.S.B.); (E.C.V.); (T.d.M.C.P.)
| | - Eduarda de Souza Belisário
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha 29102-920, ES, Brazil; (L.Z.C.); (R.A.); (G.R.C.); (E.d.S.B.); (E.C.V.); (T.d.M.C.P.)
| | | | - Fernanda Gobbi Amorim
- Laboratory of Mass Spectrometry, Department of Chemistry, University of Liège, 4000 Liège, Belgium;
| | - Javier Conde-Aranda
- Molecular and Cellular Gastroenterology, Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain;
| | - Breno Valentim Nogueira
- Department of Morphology, Health Sciences Center, Federal University of Espírito Santo (UFES), Vitoria 29047-105, ES, Brazil;
| | - Elisardo Corral Vasquez
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha 29102-920, ES, Brazil; (L.Z.C.); (R.A.); (G.R.C.); (E.d.S.B.); (E.C.V.); (T.d.M.C.P.)
| | - Thiago de Melo Costa Pereira
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha 29102-920, ES, Brazil; (L.Z.C.); (R.A.); (G.R.C.); (E.d.S.B.); (E.C.V.); (T.d.M.C.P.)
| | - Bianca Prandi Campagnaro
- Laboratory of Translational Physiology and Pharmacology, Pharmaceutical Sciences Graduate Program, Vila Velha University (UVV), Vila Velha 29102-920, ES, Brazil; (L.Z.C.); (R.A.); (G.R.C.); (E.d.S.B.); (E.C.V.); (T.d.M.C.P.)
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7
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Bourrie BCT, Diether N, Dias RP, Nam SL, de la Mata AP, Forgie AJ, Gaur G, Harynuk JJ, Gänzle M, Cotter PD, Willing BP. Use of reconstituted kefir consortia to determine the impact of microbial composition on kefir metabolite profiles. Food Res Int 2023; 173:113467. [PMID: 37803789 DOI: 10.1016/j.foodres.2023.113467] [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: 06/23/2023] [Revised: 08/29/2023] [Accepted: 09/10/2023] [Indexed: 10/08/2023]
Abstract
Kefir is fermented traditionally with kefir grains, but commercial kefir production often relies on fermentation with planktonic cultures. Kefir has been associated with many health benefits, however, the utilization of kefir grains to facilitate large industrial production of kefir is challenging and makes to difficult to ensure consistent product quality and consistency. Notably, the microbial composition of kefir fermentations has been shown to impact kefir associated health benefits. This study aimed to compare volatile compounds, organic acids, and sugar composition of kefir produced through a traditional grain fermentation and through a reconstituted kefir consortium fermentation. Additionally, the impact of two key microbial communities on metabolite production in kefir was assessed using two modified versions of the consortium, with either yeasts or lactobacilli removed. We hypothesized that the complete kefir consortium would closely resemble traditional kefir, while the consortia without yeasts or lactobacilli would differ significantly from both traditional kefir and the complete consortium fermentation. Kefir fermentations were examined after 12 and 18 h using two-dimensional gas chromatography-time-of-flight mass spectrometry (GC × GC-TOFMS) to identify volatile compounds and high performance liquid chromatography (HPLC) to identify organic acid and sugar composition. The traditional kefir differed significantly from the kefir consortium fermentation with the traditional kefir having 15-20 log2(fold change) higher levels of esters and the consortium fermented kefir having between 1 and 3 log2(fold change) higher organic acids including lactate and acetate. The use of a version of kefir consortium that lacked lactobacilli resulted in between 2 and 20 log2(fold change) lower levels of organic acids, ethanol, and butanoic acid ethyl ester, while the absence of yeast from the consortium resulted in minimal change. In summary, the kefir consortium fermentation is significantly different from traditional grain fermented kefir with respect to the profile of metabolites present, and seems to be driven by lactobacilli, as evidenced by the significant decrease in multiple metabolites when the lactobacilli were removed from the fermentation and minimal differences observed upon the removal of yeast.
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Affiliation(s)
- Benjamin C T Bourrie
- Department of Agricultural, Food, and Nutrition Sciences, University of Alberta, Edmonton, AB, Canada
| | - Natalie Diether
- Department of Agricultural, Food, and Nutrition Sciences, University of Alberta, Edmonton, AB, Canada
| | - Ryan P Dias
- The Metabolomics Innovation Centre (TMIC), University of Alberta, Edmonton, AB, Canada; Department of Chemistry, University of Alberta, Edmonton, AB, Canada
| | - Seo Lin Nam
- The Metabolomics Innovation Centre (TMIC), University of Alberta, Edmonton, AB, Canada; Department of Chemistry, University of Alberta, Edmonton, AB, Canada
| | - A Paulina de la Mata
- The Metabolomics Innovation Centre (TMIC), University of Alberta, Edmonton, AB, Canada; Department of Chemistry, University of Alberta, Edmonton, AB, Canada
| | - Andrew J Forgie
- Department of Agricultural, Food, and Nutrition Sciences, University of Alberta, Edmonton, AB, Canada
| | - Gautam Gaur
- Department of Agricultural, Food, and Nutrition Sciences, University of Alberta, Edmonton, AB, Canada
| | - James J Harynuk
- The Metabolomics Innovation Centre (TMIC), University of Alberta, Edmonton, AB, Canada; Department of Chemistry, University of Alberta, Edmonton, AB, Canada
| | - Michael Gänzle
- Department of Agricultural, Food, and Nutrition Sciences, University of Alberta, Edmonton, AB, Canada
| | - Paul D Cotter
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland; APC Microbiome Ireland, Cork, Ireland; VistaMilk, Ireland
| | - Benjamin P Willing
- Department of Agricultural, Food, and Nutrition Sciences, University of Alberta, Edmonton, AB, Canada.
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8
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Bernardes LMM, Malta SM, Rodrigues TS, Covizzi LF, Rosa RB, Justino AB, Teixeira RR, Espíndola FS, Oliveira dos Santos D, Vieira CU, Vieira da Silva M. Drosophila melanogaster as a model for studies related to the toxicity of lavender, ginger and copaiba essential oils. PLoS One 2023; 18:e0291242. [PMID: 37768921 PMCID: PMC10538661 DOI: 10.1371/journal.pone.0291242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 08/25/2023] [Indexed: 09/30/2023] Open
Abstract
This study addresses the current trend of essential oils in alternative medicine using the non-chordate model Drosophila melanogaster. Following the three R's principles, it proposes non-chordate models to fill knowledge gaps on essential oil toxicity. Copaiba, lavender, and ginger essential oils are evaluated for effects on D. melanogaster lifespan, climbing ability, and brain structure, while their anti-inflammatory properties are also analyzed. Results show dose-related differences: higher concentrations (0.25% v/v) cause brain deterioration and impaired climbing, while lower concentrations (0.0625% v/v for copaiba and ginger; 0.125% for lavender) have no effect on climbing or brain structure. Lavender oil significantly extends lifespan and maintains anti-inflammatory activity when ingested, underscoring its therapeutic potential. These findings highlight the importance of D. melanogaster as a model for studying essential oil properties, potentially replacing chordate models. In addition, this research advances alternative remedies for currently incurable diseases, with lavender oil emerging as a promising candidate for drug discovery.
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Affiliation(s)
| | - Serena Mares Malta
- Genetics Laboratory, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | | | | | - Rafael Borges Rosa
- Biotechnology in Experimental Models Laboratory, Federal University of Uberlândia, Uberlândia, MG, Brazil
- Rodents Animal Facilities Complex, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Allisson Benatti Justino
- Biochemistry and Molecular Biology Laboratory, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Renata Roland Teixeira
- Biochemistry and Molecular Biology Laboratory, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Foued Salmen Espíndola
- Biochemistry and Molecular Biology Laboratory, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Débora Oliveira dos Santos
- Department of Oral and Maxillofacial Pathology, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Carlos Ueira Vieira
- Genetics Laboratory, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Murilo Vieira da Silva
- Biotechnology in Experimental Models Laboratory, Federal University of Uberlândia, Uberlândia, MG, Brazil
- Rodents Animal Facilities Complex, Federal University of Uberlândia, Uberlândia, MG, Brazil
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9
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Dalabasmaz S, de la Torre EP, Gensberger-Reigl S, Pischetsrieder M, Rodríguez-Ortega MJ. Identification of Potential Bioactive Peptides in Sheep Milk Kefir through Peptidomic Analysis at Different Fermentation Times. Foods 2023; 12:2974. [PMID: 37569243 PMCID: PMC10418486 DOI: 10.3390/foods12152974] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/26/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
Sheep farming is an important socioeconomic activity in most Mediterranean countries, particularly Spain, where it contributes added value to rural areas. Sheep milk is used in Spain mainly for making cheese, but it can be used also for making other dairy products, such as the lactic-alcoholic fermentation product known as kefir. Dairy products have health benefits because, among other reasons, they contain molecules with biological activity. In this work, we performed a proteomics strategy to identify the peptidome, i.e., the set of peptides contained in sheep milk kefir fermented for four different periods of time, aiming to understand changes in the pattern of digestion of milk proteins, as well as to identify potential bioactive peptides. In total, we identified 1942 peptides coming from 11 different proteins, and found that the unique peptides differed qualitatively among samples and their numbers increased along the fermentation time. These changes were supported by the increase in ethanol, lactic acid, and D-galactose concentrations, as well as proteolytic activity, as the fermentation progressed. By searching in databases, we found that 78 of the identified peptides, all belonging to caseins, had potential biological activity. Of these, 62 were not previously found in any milk kefir from other animal species. This is the first peptidomic study of sheep milk kefir comprising time-course comparison.
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Affiliation(s)
- Sevim Dalabasmaz
- Food Chemistry, Department of Chemistry and Pharmacy, Faculty of Sciences, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany; (S.D.); (S.G.-R.); (M.P.)
| | - Esther Prados de la Torre
- Departamento de Bioquímica y Biología Molecular, Universidad de Córdoba, Campus de Excelencia Internacional CeiA3, 14071 Córdoba, Spain;
| | - Sabrina Gensberger-Reigl
- Food Chemistry, Department of Chemistry and Pharmacy, Faculty of Sciences, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany; (S.D.); (S.G.-R.); (M.P.)
| | - Monika Pischetsrieder
- Food Chemistry, Department of Chemistry and Pharmacy, Faculty of Sciences, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany; (S.D.); (S.G.-R.); (M.P.)
- FAU NeW—Research Center for New Bioactive Compounds, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Manuel J. Rodríguez-Ortega
- Departamento de Bioquímica y Biología Molecular, Universidad de Córdoba, Campus de Excelencia Internacional CeiA3, 14071 Córdoba, Spain;
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10
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Su Y, Wang D, Liu N, Yang J, Sun R, Zhang Z. Clostridium butyricum improves cognitive dysfunction in ICV-STZ-induced Alzheimer's disease mice via suppressing TLR4 signaling pathway through the gut-brain axis. PLoS One 2023; 18:e0286086. [PMID: 37267300 DOI: 10.1371/journal.pone.0286086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 05/08/2023] [Indexed: 06/04/2023] Open
Abstract
In recent years, the relationship between gut-brain axis and Alzheimer's disease (AD) attracted increasing attention. The aim of this study is to investigate the therapeutic effect of Clostridium butyricum (CB) on intraventricular injection of streptozotocin (ICV-STZ)-induced mice and the potential mechanisms. ICV-STZ mice were treated with CB by gavage for 21 consecutive days. The pharmacological effect of CB was assessed by behavior test, brain tissue H&E staining and tau protein phosphorylation levels of hippocampus tissues. The expression levels of TLR4, MYD88, NF-κB p65, TNF-α, iNOS, Occludin and ZO-1 in hippocampal and colonic tissues were detected by Western-blot method. 16S rRNA gene sequencing analysis was used to analyze the intestinal microbiota of mice. The results showed that CB improved the cognitive dysfunction of ICV-STZ mice, restored the structure and cell number of hippocampal and cortical neurons, decreased the protein levels of pSer404-tau protein in hippocampal tissues and TLR4, MYD88, NF-κB p65 and iNOS in hippocampal and colonic tissues, and increased the protein levels of Occludin and ZO-1 in colonic tissues. Meanwhile, CB reversed the changes of intestinal microbiota in AD mice. Therefore, the mechanisms of cognitive function and brain pathological changes in AD mice improved by CB may be related to the regulation of TLR4 signaling pathway and intestinal microbiota. This study supports the potential anti-AD effect of CB and initially revealed its pharmacological mechanism of CB, providing a theoretical basis for further clinical application of CB.
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Affiliation(s)
- Yunfang Su
- Henan Engineering Research Center for Prevention and Treatment of Major Chronic Diseases with Chinese Medicine, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, Henan Province, China
- The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, Henan Province, China
| | - Dahui Wang
- LiangShan College (LiShui) China, Lishui University, Lishui, Zhejiang Province, China
- Henan JinBaiHe Biotechnology Co. LTD, Nanjing, Jiangsu, China
| | - Ningning Liu
- Henan Engineering Research Center for Prevention and Treatment of Major Chronic Diseases with Chinese Medicine, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, Henan Province, China
| | - Jiajia Yang
- School of Acupuncture and Massage, Henan University of Chinese Medicine, Zhengzhou, Henan Province, China
| | - Ruiqin Sun
- Henan Engineering Research Center for Prevention and Treatment of Major Chronic Diseases with Chinese Medicine, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, Henan Province, China
| | - Zhenqiang Zhang
- Henan Engineering Research Center for Prevention and Treatment of Major Chronic Diseases with Chinese Medicine, Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, Henan Province, China
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11
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Pires A, Tan G, Gomes D, Pereira-Dias S, Díaz O, Cobos A, Pereira C. Application of Ultrafiltration to Produce Sheep's and Goat's Whey-Based Synbiotic Kefir Products. MEMBRANES 2023; 13:membranes13050473. [PMID: 37233534 DOI: 10.3390/membranes13050473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023]
Abstract
Membrane filtration technologies are the best available tools to manage dairy byproducts such as cheese whey, allowing for the selective concentration of its specific components, namely proteins. Their acceptable costs and ease of operation make them suitable for application by small/medium-scale dairy plants. The aim of this work is the development of new synbiotic kefir products based on sheep and goat liquid whey concentrates (LWC) obtained by ultrafiltration. Four formulations for each LWC based on a commercial kefir starter or traditional kefir, without or with the addition of a probiotic culture, were produced. The physicochemical, microbiological, and sensory properties of the samples were determined. Membrane process parameters indicated that ultrafiltration can be applied for obtaining LWCs in small/medium scale dairy plants with high protein concentration (16.4% for sheep and 7.8% for goats). Sheep kefirs showed a solid-like texture while goat kefirs were liquid. All samples presented counts of lactic acid bacteria higher than log 7 CFU/mL, indicating the good adaptation of microorganisms to the matrixes. Further work must be undertaken in order to improve the acceptability of the products. It could be concluded that small/medium-scale dairy plants can use ultrafiltration equipment to valorize sheep's and goat's cheese whey-producing synbiotic kefirs.
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Affiliation(s)
- Arona Pires
- Polytechnic Institute of Coimbra, School of Agriculture, Bencanta, 3045-093 Coimbra, Portugal
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Gözdenur Tan
- Engineering Faculty, University Süleyman Demirel, Merkez/Isparta 32260, Turkey
| | - David Gomes
- Polytechnic Institute of Coimbra, School of Agriculture, Bencanta, 3045-093 Coimbra, Portugal
| | - Susana Pereira-Dias
- Polytechnic Institute of Coimbra, School of Agriculture, Bencanta, 3045-093 Coimbra, Portugal
- Centro de Estudos dos Recursos Naturais, Ambiente e Sociedade-CERNAS, 3045-601 Coimbra, Portugal
| | - Olga Díaz
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Angel Cobos
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Carlos Pereira
- Polytechnic Institute of Coimbra, School of Agriculture, Bencanta, 3045-093 Coimbra, Portugal
- Centro de Estudos dos Recursos Naturais, Ambiente e Sociedade-CERNAS, 3045-601 Coimbra, Portugal
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12
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Metagenomic features of Tibetan kefir grains and its metabolomics analysis during fermentation. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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13
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Bourrie BCT, Forgie AJ, Ju T, Richard C, Cotter PD, Willing BP. Consumption of the cell-free or heat-treated fractions of a pitched kefir confers some but not all positive impacts of the corresponding whole kefir. Front Microbiol 2022; 13:1056526. [PMID: 36504827 PMCID: PMC9730713 DOI: 10.3389/fmicb.2022.1056526] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/31/2022] [Indexed: 11/25/2022] Open
Abstract
Introduction Kefir consumption can have many metabolic health benefits, including, in the case of specific kefirs, improvements in plasma and liver lipid profiles. Our group has previously shown that these health benefits are dependent on the microbial composition of the kefir fermentation, and that a pitched kefir (PK1) containing specific traditional microbes can recapitulate the health benefits of a traditional kefir. In this study we investigated how different preparations of kefir impact cholesterol and lipid metabolism and circulating markers of cardiovascular disease risk and determine if freeze-drying impacts health benefits relative to past studies. Materials and methods Eight-week-old male and female C57Bl/6 mice were fed a high fat diet (40% kcal from fat) supplemented with one of 3 freeze-dried kefir preparations (whole kefir, cell-free kefir, or heat-treated kefir) for 8 weeks prior to analysis of plasma and liver lipid profiles, circulating cardiovascular disease (CVD) biomarkers, cecal microbiome composition, and cecal short-chain fatty acid levels. These groups of mice were compared to others that were fed a control low-fat diet, control high fat diet or high fat diet supplemented with milk, respectively. Results All kefir preparations lowered plasma cholesterol in both male and female mice, while only whole kefir lowered liver cholesterol and triglycerides. Plasma vascular cell adhesion molecule 1 (VCAM-1) was lowered by both whole kefir and heat-treated kefir in male mice but not females, while c-reactive protein (CRP) was unchanged across all high fat diet fed groups in males and females. Conclusion These results indicate that some of the metabolic benefits of consumption of this kefir do not require whole kefir while also indicating that there are multiple compounds or components responsible for the different benefits observed.
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Affiliation(s)
- Benjamin C. T. Bourrie
- Agricultural Food and Nutritional Science, Agriculture/Forestry Center, University of Alberta, Edmonton, AB, Canada
| | - Andrew J. Forgie
- Agricultural Food and Nutritional Science, Agriculture/Forestry Center, University of Alberta, Edmonton, AB, Canada
| | - Tingting Ju
- Agricultural Food and Nutritional Science, Agriculture/Forestry Center, University of Alberta, Edmonton, AB, Canada
| | - Caroline Richard
- Agricultural Food and Nutritional Science, Agriculture/Forestry Center, University of Alberta, Edmonton, AB, Canada
| | - Paul D. Cotter
- Teagasc Food Research Centre, Fermoy, Ireland,APC Microbiome Ireland, Cork, Ireland,VistaMilk, Cork, Ireland
| | - Benjamin P. Willing
- Agricultural Food and Nutritional Science, Agriculture/Forestry Center, University of Alberta, Edmonton, AB, Canada,*Correspondence: Benjamin P. Willing,
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Asen ND, Okagu OD, Udenigwe CC, Aluko RE. In vitro inhibition of acetylcholinesterase activity by yellow field pea (Pisum sativum) protein-derived peptides as revealed by kinetics and molecular docking. Front Nutr 2022; 9:1021893. [PMID: 36337665 PMCID: PMC9635817 DOI: 10.3389/fnut.2022.1021893] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/07/2022] [Indexed: 11/28/2022] Open
Abstract
Compounds with structural similarities to the neurotransmitter (acetylcholine) are mostly used to inhibit the activity of acetylcholinesterase (AChE) in Alzheimer’s disease (AD) therapy. However, the existing drugs only alleviate symptoms of moderate to mild conditions and come with side effects; hence, the search is still on for potent and safer options. In this study, High performance liquid chromatography (HPLC) fractionations of AChE-inhibitory pea protein hydrolysates obtained from alcalase, flavourzyme and pepsin digestions were carried out followed by sequence identification of the most active fractions using mass spectrometry. Subsequently, 20 novel peptide sequences identified from the active fractions were synthesized and five peptides, QSQS, LQHNA, SQSRS, ETRSQ, PQDER (IC50 = 1.53 – 1.61 μg/mL) were selected and analyzed for ability to change AChE protein conformation (fluorescence emission and circular dichroism), kinetics of enzyme inhibition, and enzyme-ligand binding configurations using molecular docking. The kinetics studies revealed different inhibition modes by the peptides with relatively low (<0.02 mM and <0.1 mM) inhibition constant and Michaelis constant, respectively, while maximum velocity was reduced. Conformational changes were confirmed by losses in fluorescence intensity and reduced α-helix content of AChE after interactions with different peptides. Molecular docking revealed binding of the peptides to both the catalytic anionic site and the peripheral anionic site. The five analyzed peptides all contained glutamine (Q) but sequences with Q in the penultimate N-terminal position (LQHNA, SQSRS, and PQDER) had stronger binding affinity. Results from the different analysis in this study confirm that the peptides obtained from enzymatic digestion of pea protein possess the potential to be used as novel AChE-inhibitory agents in AD management.
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Affiliation(s)
- Nancy D. Asen
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Ogadimma D. Okagu
- Department of Chemistry and Biomolecular Sciences, Faculty of Science, University of Ottawa, Ottawa, ON, Canada
| | - Chibuike C. Udenigwe
- Department of Chemistry and Biomolecular Sciences, Faculty of Science, University of Ottawa, Ottawa, ON, Canada
- School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Rotimi E. Aluko
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada
- Richardson Centre for Food Technology and Research, University of Manitoba, Winnipeg, MB, Canada
- *Correspondence: Rotimi E. Aluko,
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