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Patil MP, Oktavitri NI, Kim YR, Yoon S, Lee IC, Kim JO, Kim K. Complete Mitochondrial Genome and Its Phylogenetic Position in Red Algae Fushitsunagia catenata from South Korea. Life (Basel) 2024; 14:534. [PMID: 38672804 PMCID: PMC11050817 DOI: 10.3390/life14040534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
The mitogenome is an important tool in taxonomic and evolutionary studies. Only a few complete mitogenomes have been reported for red algae. Herein, we reported the complete mitochondrial genome sequence of Fushitsunagia catenata (Harvey) Filloramo, G.V. and Saunders, G.W. 2016, a monospecific genus. The genome was 25,889 bp in circumference and had a strongly biased AT of 70.4%. It consisted of 2 rRNAs, 23 tRNAs, and 24 protein-coding genes (PCGs). nad5 (1986 bp) was the largest and atp9 (231 bp) was the smallest PCG. All PCGs used ATG as an initiation codon and TAA as a termination codon, except TAG, which was the termination codon used in the sdh3, rps3, and rps11 genes. The general structure and gene content of the present findings were almost identical to those of other red algae genomes, particularly those of the Rhodymeniales order. The maximum likelihood analysis showed that F. catenata was closely related to Rhodymenia pseudopalmata. The mitochondrial genome data presented in this study will enhance our understanding of evolution in Rhodophyta species.
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Affiliation(s)
- Maheshkumar Prakash Patil
- Industry-University Cooperation Foundation, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Nur Indradewi Oktavitri
- Study Program of Environmental Engineering, Faculty of Science and Technology, Universitas Airlangga, Surabaya 60115, Indonesia;
| | - Young-Ryun Kim
- Marine Eco-Technology Institute, Busan 48520, Republic of Korea
| | - Seokjin Yoon
- Dokdo Fisheries Research Center, National Institute of Fisheries Science, Pohang 37709, Republic of Korea
| | - In-Cheol Lee
- Department of Ocean Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Jong-Oh Kim
- Department of Microbiology, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
- School of Marine and Fisheries Life Science, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
| | - Kyunghoi Kim
- Study Program of Environmental Engineering, Faculty of Science and Technology, Universitas Airlangga, Surabaya 60115, Indonesia;
- Department of Ocean Engineering, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea
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Ulagesan S, Krishnan S, Nam TJ, Choi YH. Crassostrea gigas peptide PEP-1 prevents tert-butyl hydroperoxide (t-BHP) induced oxidative stress in HepG2 cells. Food Sci Biotechnol 2024; 33:1245-1254. [PMID: 38440692 PMCID: PMC10908960 DOI: 10.1007/s10068-023-01418-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/16/2023] [Accepted: 08/10/2023] [Indexed: 03/06/2024] Open
Abstract
Exposure to tert-butyl hydroperoxide (t-BHP) leads to cytotoxicity and oxidative stress in various organs and cell types. The bioactive peptides extracted from Oysters exhibit marked antioxidant activity. The impacts of Crassostrea gigas peptides on t-BHP-triggered oxidative stress remain largely unknown. The protective and antioxidant activity of a C.gigas peptide, PEP-1, on t-BHP-treated HepG2 cells, was investigated. PEP-1, this peptide is arginine kinase in oysters. This enzyme functions as a catalyst for the chemical reaction and serves as a phosphate transferase. Since it was the most expressed protein in the adductor muscle of oysters. Our determination showed the lowest level of a toxic concentration of t-BHP (200 µM) and the resting concentration of PEP-1 (0-1000 ng/ml). PEP-1 exerted a protective effect against t-BHP-induced apoptosis by modifying the expression of pro-and anti-apoptotic proteins. PEP-1 administration reduced nitric oxide and ROS levels while restoring levels of antioxidant proteins in t-BHP-induced cells. PEP-1 exhibited the capacity to enhance the translocation of nuclear factor erythroid 2-related factor 2 (Nrf2). Therefore, the C. gigas peptide PEP-1 has demonstrated its ability to protect HepG2 cells against oxidative stress induced by t-BHP.
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Affiliation(s)
- Selvakumari Ulagesan
- Division of Fisheries Life Sciences, Pukyong National University, Nam-Gu, Busan, 48513 Republic of Korea
| | - Sathish Krishnan
- Institute of Fisheries Sciences, Pukyong National University, Gijang-Gun, Busan, 46041 Republic of Korea
| | - Taek-Jeong Nam
- Institute of Fisheries Sciences, Pukyong National University, Gijang-Gun, Busan, 46041 Republic of Korea
| | - Youn-Hee Choi
- Division of Fisheries Life Sciences, Pukyong National University, Nam-Gu, Busan, 48513 Republic of Korea
- Institute of Fisheries Sciences, Pukyong National University, Gijang-Gun, Busan, 46041 Republic of Korea
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Weon SH, Na Y, Han J, Lee JW, Kim HJ, Park S, Lee SH. pH-Responsive Cellulose/Silk/Fe 3O 4 Hydrogel Microbeads Designed for Biomedical Applications. Gels 2024; 10:200. [PMID: 38534618 DOI: 10.3390/gels10030200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/10/2024] [Accepted: 03/14/2024] [Indexed: 03/28/2024] Open
Abstract
In this study, cellulose/Fe3O4 hydrogel microbeads were prepared through the sol-gel transition of a solvent-in-oil emulsion using various cellulose-dissolving solvents and soybean oil without surfactants. Particularly, 40% tetrabutylammonium hydroxide (TBAH) and 40% tetrabutylphosphonium hydroxide (TBPH) dissolved cellulose at room temperature and effectively dispersed Fe3O4, forming cellulose/Fe3O4 microbeads with an average diameter of ~15 µm. Additionally, these solvents co-dissolved cellulose and silk, allowing for the manufacture of cellulose/silk/Fe3O4 hydrogel microbeads with altered surface characteristics. Owing to the negatively charged surface characteristics, the adsorption capacity of the cellulose/silk/Fe3O4 microbeads for the cationic dye crystal violet was >10 times higher than that of the cellulose/Fe3O4 microbeads. When prepared with TBAH, the initial adsorption rate of bovine serum albumin (BSA) on the cellulose/silk/Fe3O4 microbeads was 18.1 times higher than that on the cellulose/Fe3O4 microbeads. When preparing TBPH, the equilibrium adsorption capacity of the cellulose/silk/Fe3O4 microbeads for BSA (1.6 g/g) was 8.5 times higher than that of the cellulose/Fe3O4 microbeads. The pH-dependent BSA release from the cellulose/silk/Fe3O4 microbeads prepared with TBPH revealed 6.1-fold slower initial desorption rates and 5.2-fold lower desorption amounts at pH 2.2 than those at pH 7.4. Cytotoxicity tests on the cellulose and cellulose/silk composites regenerated with TBAH and TBPH yielded nontoxic results. Therefore, cellulose/silk/Fe3O4 microbeads are considered suitable pH-responsive supports for orally administered protein pharmaceuticals.
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Affiliation(s)
- Seung Hyeon Weon
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yuhyeon Na
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jiwoo Han
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jeong Woo Lee
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Hyung Joo Kim
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Saerom Park
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Sang Hyun Lee
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea
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Lee H, Kim M, Park M, Cho M, Hur JW, Lee Y, Jo MR, Lee JG, Im MH. Determination of 57 pesticide residues in fishery products by GC tandem mass spectrometry combined with QuEChERS (quick, easy, cheap, effective, rugged, and safe) extraction. Food Sci Biotechnol 2024; 33:831-853. [PMID: 38371676 PMCID: PMC10866810 DOI: 10.1007/s10068-023-01372-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/30/2023] [Accepted: 06/08/2023] [Indexed: 02/20/2024] Open
Abstract
An analytical method using GC-MS/MS combined with quick, easy, cheap, effective, rugged, and safe extraction was developed to determine 57 pesticides in fishery products. The limits of detection and quantification (LOD and LOQ, respectively) of the analytical method ranged between 0.91 and 2.12 ng/g wet mass and 3 and 7 ng/g wet mass, respectively. Moreover, the linearity of the calibration curves was acceptable (R2 > 0.99). The relative pesticide recoveries ranged between 53.87 and 127.2%, and reproducibility ranged between 0.25 and 10.87%. The pesticide residues in brown seaweed, eel, flatfish, shrimp, and abalone samples were analyzed using the developed analytical method, and the results indicate that most samples were not contaminated by the 57 target pesticides, except low levels (< 10 ng/g) of 1,1-dichloro-2,2-bis(4-chlorophenyl)ethene, alachlor, ametryn, isoprothiolane, and prometryn in several samples.
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Affiliation(s)
- Hyesu Lee
- Food Additives and Packaging Division, Ministry of Food and Drug Safety, Cheongju, 28159 Republic of Korea
| | - Myungheon Kim
- Department of Food Engineering, Daegu University, Gyeongsan-si, Cyeongsangbuk-do 38453 Republic of Korea
| | - Minsoo Park
- Department of Food Engineering, Daegu University, Gyeongsan-si, Cyeongsangbuk-do 38453 Republic of Korea
| | - Mihyun Cho
- Department of Food Engineering, Daegu University, Gyeongsan-si, Cyeongsangbuk-do 38453 Republic of Korea
| | - Jun Wook Hur
- Department of Aquaculture and Aquatic Science, Kunsan National University, Gunsan, Jeonbuk 54150 Republic of Korea
| | - Yoonmi Lee
- Food Safety and Processing Research Division, National Institute Fisheries Science, Busan, 460083 Republic of Korea
| | - Mi-Ra Jo
- Food Safety and Processing Research Division, National Institute Fisheries Science, Busan, 460083 Republic of Korea
| | - Joon-Goo Lee
- Department of Food Biotechnology, Dong-A University, Saha-gu, Busan, 49315 Republic of Korea
| | - Moo-Hyeog Im
- Department of Food Engineering, Daegu University, Gyeongsan-si, Cyeongsangbuk-do 38453 Republic of Korea
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Yu J, Lee H, Cho SM, Lee Y, Kim D, Hong SG, Park SJ, Kim SG, Jin H, Lee J. Life under the snow: A year-round transcriptome analysis of Antarctic mosses in natural habitats provides insight into the molecular adaptation of plants under extreme environment. Plant Cell Environ 2024; 47:976-991. [PMID: 38164069 DOI: 10.1111/pce.14793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 11/11/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024]
Abstract
Mosses are vital components of ecosystems, exhibiting remarkable adaptability across diverse habitats from deserts to polar ice caps. Sanionia uncinata (Hedw.) Loeske, a dominant Antarctic moss survives extreme environmental condition through perennial lifecycles involving growth and dormancy alternation. This study explores genetic controls and molecular mechanisms enabling S. uncinata to cope with seasonality of the Antarctic environment. We analysed the seasonal transcriptome dynamics of S. uncinata collected monthly from February 2015 to January 2016 in King George Island, Antarctica. Findings indicate that genes involved in plant growth were predominantly upregulated in Antarctic summer, while those associated with protein synthesis and cell cycle showed marked expression during the winter-to-summer transition. Genes implicated in cellular stress and abscisic acid signalling were highly expressed in winter. Further, validation included a comparison of the Antarctic field transcriptome data with controlled environment simulation of Antarctic summer and winter temperatures, which revealed consistent gene expression patterns in both datasets. This proposes a seasonal gene regulatory model of S. uncinate to understand moss adaptation to extreme environments. Additionally, this data set is a valuable resource for predicting genetic responses to climatic fluctuations, enhancing our knowledge of Antarctic flora's resilience to global climate change.
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Affiliation(s)
- Jihyeon Yu
- Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea
| | - Hyoungseok Lee
- Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea
- Polar Science, University of Science and Technology, Incheon, South Korea
| | - Sung Mi Cho
- Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea
- Polar Science, University of Science and Technology, Incheon, South Korea
| | - Yelim Lee
- Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea
- School of Biological Sciences, Seoul National University, Seoul, South Korea
| | - Dockyu Kim
- Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea
| | - Soon Gyu Hong
- Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea
- Polar Science, University of Science and Technology, Incheon, South Korea
| | - Sang-Jong Park
- Division of Atmospheric Sciences, Korea Polar Research Institute, Incheon, South Korea
| | - Sang-Gyu Kim
- Department of Biological Sciences, Korea Advanced Institute for Science and Technology, Daejeon, Korea
| | - Hongshi Jin
- Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea
| | - Jungeun Lee
- Division of Life Sciences, Korea Polar Research Institute, Incheon, South Korea
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Choi SS, Lee JH, Kong H, Park EJ. Biofilm removal effect of diatom complex on 3D printed denture base resin. Sci Rep 2024; 14:4034. [PMID: 38369560 PMCID: PMC10874960 DOI: 10.1038/s41598-024-54408-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/12/2024] [Indexed: 02/20/2024] Open
Abstract
For patients who have difficulty in mechanical cleaning of dental appliances, a denture cleaner that can remove biofilm with dense extracellular polymeric substances is needed. The purpose of this study is to evaluate the efficacy of diatom complex with active micro-locomotion for removing biofilms from 3D printed dentures. The diatom complex, which is made by doping MnO2 nanosheets on diatom biosilica, is mixed with H2O2 to generate fine air bubbles continuously. Denture base resin specimens were 3D printed in a roof shape, and Pseudomonas aeruginosa (107 CFU/mL) was cultured on those for biofilm formation. Cleaning solutions of phosphate-buffered saline (negative control, NC), 3% H2O2 with peracetic acid (positive control, PC), denture cleanser tablet (DCT), 3% H2O2 with 2 mg/mL diatom complex M (Melosira, DM), 3% H2O2 with 2 mg/mL diatom complex A (Aulacoseira, DA), and DCT with 2 mg/mL DM were prepared and applied. To assess the efficacy of biofilm removal quantitatively, absorbance after cleaning was measured. To evaluate the stability of long-term use, surface roughness, ΔE, surface micro-hardness, and flexural strength of the 3D printed dentures were measured before and after cleaning. Cytotoxicity was evaluated using Cell Counting Kit-8. All statistical analyses were conducted using SPSS for Windows with one-way ANOVA, followed by Scheffe's test as a post hoc (p < 0.05). The group treated with 3% H2O2 with DA demonstrated the lowest absorbance value, followed by the groups treated with 3% H2O2 with DM, PC, DCT, DCT + DM, and finally NC. As a result of Scheffe's test to evaluate the significance of difference between the mean values of each group, statistically significant differences were shown in all groups based on the NC group. The DA and DM groups showed the largest mean difference though there was no significant difference between the two groups. Regarding the evaluation of physical and mechanical properties of the denture base resin, no statistically significant differences were observed before and after cleaning. In the cytotoxicity test, the relative cell count was over 70%, reflecting an absence of cytotoxicity. The diatom complex utilizing active micro-locomotion has effective biofilm removal ability and has a minimal effect in physical and mechanical properties of the substrate with no cytotoxicity.
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Affiliation(s)
- Sung-Sil Choi
- Department of Dental Laboratory Technology, Graduate School of Clinical Dentistry, Ewha Womans University, Seoul, 07985, Republic of Korea
| | - Joo Hun Lee
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana- Champaign, Urbana, 61801, USA
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana- Champaign, Urbana, 61801, USA
| | - Eun-Jin Park
- Department of Prosthodontics, College of Medicine, Ewha Womans University, 25, Magokdong-ro 2-gil, Gangseo-gu, Seoul, 07804, Republic of Korea.
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Kim TH, Heo SY, Oh GW, Park WS, Jung WK. Biocompatibility and sub-chronic toxicity studies of phlorotannin/polycaprolactone coated trachea tube for advancing medical device applications. Sci Rep 2024; 14:3945. [PMID: 38365854 PMCID: PMC10873353 DOI: 10.1038/s41598-024-54684-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 02/15/2024] [Indexed: 02/18/2024] Open
Abstract
The phlorotannin-polycaprolactone-coated endotracheal tube (PP tube) has been developed with the aim of preventing tracheal stenosis that can result from endotracheal intubation, a factor that can lead to a serious airway obstruction. Its preventive efficacy has been assessed through both in vitro and in vivo investigations. However, there is a lack of studies concerning its biocompatibility and sub-chronic toxicity in animal models, a crucial factor to ensure the safety of its usage as a functional endotracheal tube. Thus, this study aimed to evaluate the biocompatibility and sub-chronic (13 weeks) toxicity of the PP tube through L929 cell line and diverse in vivo models. The cytotoxicity testing was performed using the extracts of PP tube on L929 cells for 72 h. Furthermore, other tests conducted on animal models, including ICR mice (acute systemic toxicity), New Zealand white rabbit (intradermal reactivity and pyrogen tests), guinea pig (maximization sensitization), and Sprague Dawley rats (sub-chronic toxicity). In both biocompatibility and sub-chronic toxicity analyses, no significant adverse effects are observed in the groups exposed to the PP tube, when compared to control group. Altogether, the findings suggested that the PP tube exhibits relative non-toxic and safety, supporting its suitability for clinical usage. However, extended periods of intubation may produce mild irritant responses, highlighting the clinical caution of limiting intubation duration to less than 13 weeks.
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Affiliation(s)
- Tae-Hee Kim
- Research Center for Marine-Integrated Bionics Technology, Pukyong National University, Busan, 48513, Republic of Korea
- Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea
| | - Seong-Yeong Heo
- Jeju Bio Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju, 63349, Republic of Korea
| | - Gun-Woo Oh
- National Marine Biodiversity Institute of Korea, Seochun, Chungcheongnam-do, 33662, Republic of Korea
| | - Won Sun Park
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon, 24341, Republic of Korea
| | - Won-Kyo Jung
- Research Center for Marine-Integrated Bionics Technology, Pukyong National University, Busan, 48513, Republic of Korea.
- Marine Integrated Biomedical Technology Center, The National Key Research Institutes in Universities, Pukyong National University, Busan, 48513, Republic of Korea.
- Major of Biomedical Engineering, Division of Smart Healthcare, College of Information Technology and Convergence and New-Senior Healthcare Innovation Center (BK21 Plus), Busan, 48513, Republic of Korea.
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Lee MA, Kang JS, Yang JW, Lee HS, Heo CS, Park SJ, Shin HJ. Meirols A-C: Bioactive Catecholic Compounds from the Marine-Derived Fungus Meira sp. 1210CH-42. Mar Drugs 2024; 22:87. [PMID: 38393058 PMCID: PMC10890530 DOI: 10.3390/md22020087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Three new catecholic compounds, named meirols A-C (2-4), and one known analog, argovin (1), were isolated from the marine-derived fungus Meira sp. 1210CH-42. Their structures were determined by extensive analysis of 1D, 2D NMR, and HR-ESIMS spectroscopic data. Their absolute configurations were elucidated based on ECD calculations. All the compounds exhibited strong antioxidant capabilities with EC50 values ranging from 6.01 to 7.47 μM (ascorbic acid, EC50 = 7.81 μM), as demonstrated by DPPH radical scavenging activity assays. In the α-glucosidase inhibition assay, 1 and 2 showed potent in vitro inhibitory activity with IC50 values of 184.50 and 199.70 μM, respectively (acarbose, IC50 = 301.93 μM). Although none of the isolated compounds exhibited cytotoxicity against one normal and six solid cancer cell lines, 1 exhibited moderate cytotoxicity against the NALM6 and RPMI-8402 blood cancer cell lines with GI50 values of 9.48 and 21.00 μM, respectively. Compound 2 also demonstrated weak cytotoxicity against the NALM6 blood cancer cell line with a GI50 value of 29.40 μM.
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Affiliation(s)
- Min Ah Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (M.A.L.); (H.-S.L.); (C.-S.H.)
- Department of Chemistry, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea;
| | - Jong Soon Kang
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongwon-gu, Cheongju 28116, Republic of Korea; (J.S.K.); (J.-W.Y.)
| | - Jeong-Wook Yang
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Cheongwon-gu, Cheongju 28116, Republic of Korea; (J.S.K.); (J.-W.Y.)
| | - Hwa-Sun Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (M.A.L.); (H.-S.L.); (C.-S.H.)
- Department of Chemistry, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea;
| | - Chang-Su Heo
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (M.A.L.); (H.-S.L.); (C.-S.H.)
- Department of Marine Biotechnology, University of Science and Technology (UST), 217 Gajungro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Sun Joo Park
- Department of Chemistry, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea;
| | - Hee Jae Shin
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (M.A.L.); (H.-S.L.); (C.-S.H.)
- Department of Marine Biotechnology, University of Science and Technology (UST), 217 Gajungro, Yuseong-gu, Daejeon 34113, Republic of Korea
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Seo HJ, Seo YH, Park SU, Lee HJ, Lee MR, Park JH, Cho WY, Lee PC, Lee BY. Glycerol-derived organic carbonates: environmentally friendly plasticizers for PLA. RSC Adv 2024; 14:4702-4716. [PMID: 38318613 PMCID: PMC10840682 DOI: 10.1039/d3ra08922c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 01/29/2024] [Indexed: 02/07/2024] Open
Abstract
Polylactic acid (PLA) stands as a promising material, sourced from renewables and exhibiting biodegradability-albeit under stringent industrial composting settings. A primary challenge impeding PLA's broad applications is its inherent brittleness, as it fractures with minimal elongation despite its commendable tensile strength. A well-established remedy involves blending PLA with plasticizers. In this study, a range of organic carbonates-namely, 4-ethoxycarbonyloximethyl-[1,3]dioxolan-2-one (1), 4-methoxycarbonyloximethyl-[1,3]dioxolan-2-one (2), glycerol carbonate (3), and glycerol 1-acetate 2,3-carbonate (4)-were synthesized on a preparative scale (∼100 g), using renewable glycerol and CO2-derived diethyl carbonate (DEC) or dimethyl carbonate (DMC). Significantly, 1-4 exhibited biodegradability under ambient conditions within a week, ascertained through soil exposure at 25 °C-outpacing the degradation of comparative cellulose. Further investigations revealed 1's efficacy as a PLA plasticizer. Compatibility with PLA, up to 30 phr (parts per hundred resin), was verified using an array of techniques, including DSC, DMA, SEM, and rotational rheometry. The resulting blends showcased enhanced ductility, evident from tensile property measurements. Notably, the novel plasticizer 1 displayed an advantage over conventional acetyltributylcitrate (ATBC) in terms of morphological stability. Slow crystallization, observed in PLA/ATBC blends over time at room temperature, was absent in PLA/1 blends, preserving amorphous domain dimensions and mitigating plasticizer migration-confirmed through DMA assessments of aged and unaged specimens. Nevertheless, biodegradation assessments of the blends revealed that the biodegradable organic carbonate plasticizers did not augment PLA's biodegradation. The PLA in the blends remained mostly unchanged under ambient soil conditions of 25 °C over a 6 month period. This work underscores the potential of organic carbonates as both eco-friendly plasticizers for PLA and as biodegradable compounds, contributing to the development of environmentally conscious polymer systems.
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Affiliation(s)
- Hyeon Jeong Seo
- Department of Molecular Science and Technology, Ajou University Suwon 16499 South Korea +82-31-219-2394 +82-31-219-1844
| | - Yeong Hyun Seo
- Department of Molecular Science and Technology, Ajou University Suwon 16499 South Korea +82-31-219-2394 +82-31-219-1844
| | - Sang Uk Park
- Department of Molecular Science and Technology, Ajou University Suwon 16499 South Korea +82-31-219-2394 +82-31-219-1844
| | - Hyun Ju Lee
- Department of Molecular Science and Technology, Ajou University Suwon 16499 South Korea +82-31-219-2394 +82-31-219-1844
| | - Mi Ryu Lee
- Department of Molecular Science and Technology, Ajou University Suwon 16499 South Korea +82-31-219-2394 +82-31-219-1844
| | - Jun Hyeong Park
- Department of Molecular Science and Technology, Ajou University Suwon 16499 South Korea +82-31-219-2394 +82-31-219-1844
| | - Woo Yeon Cho
- Department of Molecular Science and Technology, Ajou University Suwon 16499 South Korea +82-31-219-2394 +82-31-219-1844
| | - Pyung Cheon Lee
- Department of Molecular Science and Technology, Ajou University Suwon 16499 South Korea +82-31-219-2394 +82-31-219-1844
| | - Bun Yeoul Lee
- Department of Molecular Science and Technology, Ajou University Suwon 16499 South Korea +82-31-219-2394 +82-31-219-1844
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Naznin M, Alam R, Alam MB, Jung MJ, Lee SH, Kim S. Biological activities, identification, method development, and validation for analysis of polyphenolic compounds in Nymphaea rubra flowers and leaves by UHPLC-Q-cIM-TOF-MS and UHPLC-TQ-MS. Phytochem Anal 2024. [PMID: 38297293 DOI: 10.1002/pca.3329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 02/02/2024]
Abstract
INTRODUCTION Nymphaea rubra belongs to the Nymphaea family and is regarded as a vegetable used in traditional medicine to cure several ailments. These species are rich in phenolic acid, flavonoids, and hydrolysable tannin. OBJECTIVE This study aimed to assess the biological activities of Nymphaea rubra flowers (NRF) and leaves (NRL) by identifying and quantifying their polyphenolic compounds using ultra-performance liquid chromatography coupled to quadrupole cyclic ion mobility time-of-flight mass spectrometry (UHPLC-Q-cIM-TOF-MS) and triple quadrupole mass spectrometry (UHPLC-TQ-MS). METHODOLOGY NRF and NRL powder was extracted with methanol and fractionated using hexane, ethylacetate, and water. Antioxidant and α-glucosidase, and tyrosinase enzyme inhibitory activities were evaluated. The polyphenolic components of NRF and NRL were identified and quantified using UHPLC-Q-cIM-TOF-MS and UHPLC-TQ-MS. The method was validated using linearity, precision, accuracy, limit of detection (LOD), and lower limit of quantification (LLOQ). RESULTS Bioactive substances and antioxidants were highest in the ethylacetate fraction of flowers and leaves. Principal component analysis showed how solvent and plant components affect N. rubra's bioactivity and bioactive compound extraction. A total of 67 compounds were identified, and among them 21 significant polyphenols were quantified. Each calibration curve had R2 > 0.998. The LOD and LLOQ varied from 0.007 to 0.09 μg/mL and from 0.01 to 0.1 μg/mL, respectively. NRF contained a significant amount of gallic acid (10.1 mg/g), while NRL contained abundant pentagalloylglucose (2.8 mg/g). CONCLUSION The developed method is simple, rapid, and selective for the identification and quantification of bioactive molecules. These findings provide a scientific basis for N. rubra's well-documented biological effects.
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Affiliation(s)
- Marufa Naznin
- Department of Chemistry, Kyungpook National University, Daegu, South Korea
| | - Rafiqul Alam
- Department of Chemistry, Kyungpook National University, Daegu, South Korea
| | - Md Badrul Alam
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu, South Korea
- Food and Bio-Industry Research Institute, Inner Beauty/Antiaging Center, Kyungpook National University, Daegu, South Korea
| | - Maeng-Joon Jung
- Department of Chemistry, Kyungpook National University, Daegu, South Korea
| | - Sang-Han Lee
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu, South Korea
- Food and Bio-Industry Research Institute, Inner Beauty/Antiaging Center, Kyungpook National University, Daegu, South Korea
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu, South Korea
- Mass Spectrometry Converging Research Center and Green-Nano Materials Research Center, Daegu, South Korea
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Kim HY, Do HY, Park S, Kim KW, Min D, Lee EY, Shim D, Cho SY, Park JO, Lee CS, Nam SJ, Ko J. 2,4,6-Triphenyl-1-hexene, an Anti-Melanogenic Compound from Marine-Derived Bacillus sp. APmarine135. Mar Drugs 2024; 22:72. [PMID: 38393043 PMCID: PMC10890162 DOI: 10.3390/md22020072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024] Open
Abstract
Although melanin protects against ultraviolet radiation, its overproduction causes freckles and senile lentigines. Recently, various biological effects of metabolites derived from marine microorganisms have been highlighted due to their potential for biological and pharmacological applications. In this study, we discovered the anti-melanogenic effect of Bacillus sp. APmarine135 and verified the skin-whitening effect. Fractions of APmarine135 showed the melanin synthesis inhibition effect in B16 melanoma cells, and 2,4,6-triphenyl-1-hexene was identified as an active compound. The melanogenic capacity of 2,4,6-triphenyl-1-hexene (1) was investigated by assessing the intracellular melanin content in B16 cells. Treatment with 5 ppm of 2,4,6-triphenyl-1-hexene (1) for 72 h suppressed the α-melanocyte-stimulating hormone (α-MSH)-induced intracellular melanin increase to the same level as in the untreated control group. Additionally, 2,4,6-triphenyl-1-hexene (1) treatment suppressed the activity of tyrosinase, the rate-limiting enzyme for melanogenesis. Moreover, 2,4,6-triphenyl-1-hexene (1) treatment downregulated tyrosinase, Tyrp-1, and Tyrp-2 expression by inhibiting the microphthalmia-associated transcription factor (MITF). Furthermore, 2,4,6-triphenyl-1-hexene (1) treatment decreased the melanin content in the three-dimensional (3D) human-pigmented epidermis model MelanoDerm and exerted skin-whitening effects. Mechanistically, 2,4,6-triphenyl-1-hexene (1) exerted anti-melanogenic effects by suppressing tyrosinase, Tyrp-1, and Tyrp-2 expression and activities via inhibition of the MITF. Collectively, these findings suggest that 2,4,6-triphenyl-1-hexene (1) is a promising anti-melanogenic agent in the cosmetic industry.
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Affiliation(s)
- Hye Yeon Kim
- Department of Beauty and Cosmetic Science, Eulji University, Seongnam 13135, Republic of Korea; (H.Y.K.); (D.S.)
| | - Hye-Yeon Do
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Republic of Korea; (H.-Y.D.); (E.-Y.L.)
| | - Saitbyul Park
- Basic Research & Innovation Division, AMOREPACIFIC R&I Center, Yongin 17074, Republic of Korea; (S.P.); (D.M.); (S.Y.C.)
| | - Keon Woo Kim
- Department of Natural Product Laboratory, Daebong LS Co., Ltd., Incheon 21697, Republic of Korea; (K.W.K.); (J.O.P.)
| | - Daejin Min
- Basic Research & Innovation Division, AMOREPACIFIC R&I Center, Yongin 17074, Republic of Korea; (S.P.); (D.M.); (S.Y.C.)
| | - Eun-Young Lee
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Republic of Korea; (H.-Y.D.); (E.-Y.L.)
| | - Dabin Shim
- Department of Beauty and Cosmetic Science, Eulji University, Seongnam 13135, Republic of Korea; (H.Y.K.); (D.S.)
| | - Sung Yeon Cho
- Basic Research & Innovation Division, AMOREPACIFIC R&I Center, Yongin 17074, Republic of Korea; (S.P.); (D.M.); (S.Y.C.)
| | - Jin Oh Park
- Department of Natural Product Laboratory, Daebong LS Co., Ltd., Incheon 21697, Republic of Korea; (K.W.K.); (J.O.P.)
| | - Chang Seok Lee
- Department of Beauty and Cosmetic Science, Eulji University, Seongnam 13135, Republic of Korea; (H.Y.K.); (D.S.)
| | - Sang-Jip Nam
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Republic of Korea; (H.-Y.D.); (E.-Y.L.)
| | - Jaeyoung Ko
- Basic Research & Innovation Division, AMOREPACIFIC R&I Center, Yongin 17074, Republic of Korea; (S.P.); (D.M.); (S.Y.C.)
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12
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Kim KE, Joo HM, Kim YJ, Kang D, Lee TK, Jung SW, Ha SY. Ecological Interaction between Bacteriophages and Bacteria in Sub-Arctic Kongsfjorden Bay, Svalbard, Norway. Microorganisms 2024; 12:276. [PMID: 38399681 PMCID: PMC10893223 DOI: 10.3390/microorganisms12020276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Marine virus diversity and their relationships with their hosts in the marine environment remain unclear. This study investigated the co-occurrence of marine DNA bacteriophages (phages) and bacteria in the sub-Arctic area of Kongsfjorden Bay in Svalbard (Norway) in April and June 2018 using metagenomics tools. Of the marine viruses identified, 48-81% were bacteriophages of the families Myoviridae, Siphoviridae, and Podoviridae. Puniceispirillum phage HMO-2011 was dominant (7.61%) in April, and Puniceispirillum phage HMO-2011 (3.32%) and Pelagibacter phage HTVC008M (3.28%) were dominant in June. Gammaproteobacteria (58%), including Eionea flava (14.3%) and Pseudomonas sabulinigri (12.2%), were dominant in April, whereas Alphaproteobacteria (87%), including Sulfitobacter profundi (51.5%) and Loktanella acticola (32.4%), were dominant in June. The alpha diversity of the bacteriophages and bacterial communities exhibited opposite patterns. The diversity of the bacterial community was higher in April and lower in June. Changes in water temperature and light can influence the relationship between bacteria and bacteriophages.
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Affiliation(s)
- Kang Eun Kim
- Library of Marine Samples, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea; (K.E.K.); (Y.J.K.)
- Department of Ocean Science, University of Science & Technology, Daejeon 34113, Republic of Korea;
| | - Hyoung Min Joo
- Unit of Next Generation IBRV Building Program, Korea Polar Research Institute, Incheon 21990, Republic of Korea;
| | - Yu Jin Kim
- Library of Marine Samples, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea; (K.E.K.); (Y.J.K.)
- Department of Ocean Science, University of Science & Technology, Daejeon 34113, Republic of Korea;
| | - Donhyug Kang
- Marine Domain & Security Research Department, Korea Institute of Ocean Science & Technology, Busan 49111, Republic of Korea;
| | - Taek-Kyun Lee
- Department of Ocean Science, University of Science & Technology, Daejeon 34113, Republic of Korea;
- Risk Assessment Research Center, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea
| | - Seung Won Jung
- Library of Marine Samples, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea; (K.E.K.); (Y.J.K.)
- Department of Ocean Science, University of Science & Technology, Daejeon 34113, Republic of Korea;
| | - Sun-Yong Ha
- Division of Polar Ocean Science Research, Korea Polar Research Institute, Incheon 21990, Republic of Korea
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Cho M, Lee SJ, Choi E, Kim J, Choi S, Lee JH, Park H. An Antarctic lichen isolate (Cladonia borealis) genome reveals potential adaptation to extreme environments. Sci Rep 2024; 14:1342. [PMID: 38228797 PMCID: PMC10792129 DOI: 10.1038/s41598-024-51895-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/10/2024] [Indexed: 01/18/2024] Open
Abstract
Cladonia borealis is a lichen that inhabits Antarctica's harsh environment. We sequenced the whole genome of a C. borealis culture isolated from a specimen collected in Antarctica using long-read sequencing technology to identify specific genetic elements related to its potential environmental adaptation. The final genome assembly produced 48 scaffolds, the longest being 2.2 Mbp, a 1.6 Mbp N50 contig length, and a 36 Mbp total length. A total of 10,749 protein-coding genes were annotated, containing 33 biosynthetic gene clusters and 102 carbohydrate-active enzymes. A comparative genomics analysis was conducted on six Cladonia species, and the genome of C. borealis exhibited 45 expanded and 50 contracted gene families. We identified that C. borealis has more Copia transposable elements and expanded transporters (ABC transporters and magnesium transporters) compared to other Cladonia species. Our results suggest that these differences contribute to C. borealis' remarkable adaptability in the Antarctic environment. This study also provides a useful resource for the genomic analysis of lichens and genetic insights into the survival of species isolated from Antarctica.
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Affiliation(s)
- Minjoo Cho
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea
| | - Seung Jae Lee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea
| | - Eunkyung Choi
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea
| | - Jinmu Kim
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea
| | - Soyun Choi
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea
| | - Jun Hyuck Lee
- Research Unit of Cryogenic Novel Material, Korea Polar Research Institute, Incheon, 21990, South Korea.
- Department of Polar Sciences, University of Science and Technology, Incheon, 21990, South Korea.
| | - Hyun Park
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, South Korea.
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14
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Hwang JW, Lee SG, Kang H. Antioxidant, Antibacterial Properties of Novel Peptide CP by Enzymatic Hydrolysis of Chromis notata By-Products and Its Efficacy on Atopic Dermatitis. Mar Drugs 2024; 22:44. [PMID: 38248669 PMCID: PMC10817315 DOI: 10.3390/md22010044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/06/2024] [Accepted: 01/11/2024] [Indexed: 01/23/2024] Open
Abstract
This study investigated the antioxidant, antimicrobial, and anti-atopic dermatitis (AD) effects of a novel peptide (CP) derived from a Chromis notata by-product hydrolysate. Alcalase, Flavourzyme, Neutrase, and Protamex enzymes were used to hydrolyze the C. notata by-product protein, and the 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical-scavenging activity was measured. Alcalase hydrolysate exhibited the highest ABTS radical-scavenging activity, leading to the selection of Alcalase for further purification. The CHAO-1-I fraction, with the highest ABTS activity, was isolated and further purified, resulting in the identification of the peptide CP with the amino acid sequence Ala-Gln-Val-Met-Lys-Leu-Pro-His-Arg-Met-Gln-His-Ser-Gln-Ser. CP demonstrated antimicrobial activity against Staphylococcus aureus, inhibiting its growth. In a 2,4-dinitrochlorobenzene (DNCB)-induced AD-like skin model in mice, CP significantly alleviated skin lesions, reduced epidermal and dermal thickness, and inhibited mast cell infiltration. Moreover, CP suppressed the elevated levels of interleukin-6 (IL-6) in the plasma of DNCB-induced mice. These findings highlight the potential of CP as a therapeutic agent for AD and suggest a novel application of this C. notata by-product in the fish processing industry.
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Affiliation(s)
| | - Sung-Gyu Lee
- Department of Medical Laboratory Science, College of Health Science, Dankook University, Cheonan-si 31116, Chungcheongnam-do, Republic of Korea;
| | - Hyun Kang
- Department of Medical Laboratory Science, College of Health Science, Dankook University, Cheonan-si 31116, Chungcheongnam-do, Republic of Korea;
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15
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Khanal A, Han SR, Lee JH, Oh TJ. Comparative Genome Analysis of Polar Mesorhizobium sp. PAMC28654 to Gain Insight into Tolerance to Salinity and Trace Element Stress. Microorganisms 2024; 12:120. [PMID: 38257947 PMCID: PMC10820077 DOI: 10.3390/microorganisms12010120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/04/2024] [Accepted: 01/04/2024] [Indexed: 01/24/2024] Open
Abstract
In this study, Mesorhizobium sp. PAMC28654 was isolated from a soil sample collected from the polar region of Uganda. Whole-genome sequencing and comparative genomics were performed to better understand the genomic features necessary for Mesorhizobium sp. PAMC28654 to survive and thrive in extreme conditions and stresses. Additionally, diverse sequence analysis tools were employed for genomic investigation. The results of the analysis were then validated using wet-lab experiments. Genome analysis showed trace elements' resistant proteins (CopC, CopD, CzcD, and Acr3), exopolysaccharide (EPS)-producing proteins (ExoF and ExoQ), and nitrogen metabolic proteins (NarG, NarH, and NarI). The strain was positive for nitrate reduction. It was tolerant to 100 mM NaCl at 15 °C and 25 °C temperatures and resistant to multiple trace elements (up to 1 mM CuSO4·5H2O, 2 mM CoCl2·6H2O, 1 mM ZnSO4·7H2O, 0.05 mM Cd(NO3)2·4H2O, and 100 mM Na2HAsO4·7H2O at 15 °C and 0.25 mM CuSO4·5H2O, 2 mM CoCl2·6H2O, 0.5 mM ZnSO4·7H2O, 0.01 mM Cd(NO3)2·4H2O, and 100 mM Na2HAsO4·7H2O at 25 °C). This research contributes to our understanding of bacteria's ability to survive abiotic stresses. The isolated strain can be a potential candidate for implementation for environmental and agricultural purposes.
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Affiliation(s)
- Anamika Khanal
- Genome-Based Bio-IT Convergence Institute, Asan 31460, Republic of Korea; (A.K.); (S.-R.H.)
- Bio Big Data-Based Chungnam Smart Clean Research Leader Training Program, SunMoon University, Asan 31460, Republic of Korea
| | - So-Ra Han
- Genome-Based Bio-IT Convergence Institute, Asan 31460, Republic of Korea; (A.K.); (S.-R.H.)
- Bio Big Data-Based Chungnam Smart Clean Research Leader Training Program, SunMoon University, Asan 31460, Republic of Korea
- Department of Life Science and Biochemical Engineering, Graduate School, SunMoon University, Asan 31460, Republic of Korea
| | - Jun Hyuck Lee
- Research Unit of Cryogenic Novel Materials, Korea Polar Research Institute, Incheon 21990, Republic of Korea;
| | - Tae-Jin Oh
- Genome-Based Bio-IT Convergence Institute, Asan 31460, Republic of Korea; (A.K.); (S.-R.H.)
- Bio Big Data-Based Chungnam Smart Clean Research Leader Training Program, SunMoon University, Asan 31460, Republic of Korea
- Department of Life Science and Biochemical Engineering, Graduate School, SunMoon University, Asan 31460, Republic of Korea
- Department of Pharmaceutical Engineering and Biotechnology, SunMoon University, Asan 31460, Republic of Korea
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Tan ND, Kim HS, Long LNB, Nguyen DA, You SS. Optimization and inventory management under stochastic demand using metaheuristic algorithm. PLoS One 2024; 19:e0286433. [PMID: 38180984 PMCID: PMC10769039 DOI: 10.1371/journal.pone.0286433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 05/16/2023] [Indexed: 01/07/2024] Open
Abstract
This study considers multi-period inventory systems for optimizing profit and storage space under stochastic demand. A nonlinear programming model based on random demand is proposed to simulate the inventory operation. The effective inventory management system is realized using a multi-objective grey wolf optimization (MOGWO) method, reducing storage space while maximizing profit. Numerical outcomes are used to confirm the efficacy of the optimal solutions. The numerical analysis and tests for multi-objective inventory optimization are performed in the four practical scenarios. The inventory model's sensitivity analysis is performed to verify the optimal solutions further. Especially the proposed approach allows businesses to optimize profits while regulating the storage space required to operate in inventory management. The supply chain performance can be significantly enhanced using inventory management strategies and inventory management practices. Finally, the novel decision-making strategy can offer new insights into effectively managing digital supply chain networks against market volatility.
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Affiliation(s)
- Nguyen Duy Tan
- Department of Logistics, Korea Maritime and Ocean University, Busan, Republic of Korea
| | - Hwan-Seong Kim
- Department of Logistics, Korea Maritime and Ocean University, Busan, Republic of Korea
| | - Le Ngoc Bao Long
- Department of Logistics, Korea Maritime and Ocean University, Busan, Republic of Korea
| | - Duy Anh Nguyen
- Department of Mechatronics, Ho Chi Minh City University of Technology (HCMUT)-Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Sam-Sang You
- Division of Mechanical Engineering, Northeast-Asia Shipping and Port Logistics Research Center, Korea Maritime and Ocean University, Busan, Republic of Korea
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Lee YJ, Jun LJ, Kim YJ, Han JE, Ko YJ, Oh YE, Lee EJ, Lee J, Jeong JB. Comparison of specificity and sensitivity of diagnostic methods for Enteromyxum leei and Enteromyxum fugu detected from cultured tiger puffer, Takifugu rubripes in Korea. J Fish Dis 2024; 47:e13865. [PMID: 37731267 DOI: 10.1111/jfd.13865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/03/2023] [Accepted: 09/07/2023] [Indexed: 09/22/2023]
Abstract
Enteromyxum leei and Enteromyxum fugu, which are myxosporean parasites, were first found in cultured tiger puffer Takifugu rubripes in Korea. We collected four tiger puffers that showed severe emaciation signs for our experiments. DNA sequencing was confirmed that the tiger puffers were coinfected with E. leei and E. fugu. Furthermore, similar amounts of E. leei and E. fugu were confirmed using real-time PCR in the intestine. To the best of our knowledge, there have been no reports of E. fugu infection in the olive flounder Paralichthys olivaceus. However, the diagnosis of inflowing water, discharged water and olive flounder samples using highly sensitive diagnostic methods confirmed the presence of E. fugu in water and fish samples from olive flounder farms near the tiger puffer farm. Therefore, the present study aimed to develop highly sensitive diagnostic methods such as real-time and two-step PCR for early diagnosis and follow-up of the emaciation disease and multiplex PCR for rapid diagnosis. The multiplex PCR method exhibited the same sensitivity as the one-step PCR method developed in this study, demonstrating its efficacy for rapid diagnosis. Therefore, the suggested methods can be utilized for the early diagnosis and rapid diagnosis of emaciation diseases and reduction of economic losses through rapid disease control.
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Affiliation(s)
- Young Juhn Lee
- Department of Marine Life Science, Jeju National University, Jeju City, Republic of Korea
| | - Lyu Jin Jun
- Department of Marine Life Science, Jeju National University, Jeju City, Republic of Korea
| | - Ye Ji Kim
- Department of Marine Life Science, Jeju National University, Jeju City, Republic of Korea
| | - Ji Eun Han
- Department of Marine Life Science, Jeju National University, Jeju City, Republic of Korea
| | - Ye Jin Ko
- Department of Marine Life Science, Jeju National University, Jeju City, Republic of Korea
| | - Yeong Eun Oh
- Department of Marine Life Science, Jeju National University, Jeju City, Republic of Korea
| | - Eung Joon Lee
- Department of Marine Life Science, Jeju National University, Jeju City, Republic of Korea
| | - Jehee Lee
- Department of Marine Life Science, Jeju National University, Jeju City, Republic of Korea
| | - Joon Bum Jeong
- Department of Marine Life Science, Jeju National University, Jeju City, Republic of Korea
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Byeon H, An Y, Kim T, Rayamajhi V, Lee J, Shin H, Jung S. Effects of Four Organic Carbon Sources on the Growth and Astaxanthin Accumulation of Haematococcus lacustris. Life (Basel) 2023; 14:29. [PMID: 38255645 PMCID: PMC10820012 DOI: 10.3390/life14010029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024] Open
Abstract
The microalga Haematococcus lacustris has a complex life cycle and a slow growth rate, hampering its mass cultivation. Culture of microalgae with organic carbon sources can increase the growth rate. Few studies have evaluated the effects of organic carbon sources on H. lacustris. We compared the vegetative and inductive stages of H. lacustris under autotrophic and mixotrophic conditions using four organic carbon sources: sodium acetate, glycerol, sodium gluconate, and ribose, each at various concentrations (0.325, 0.65, 1.3, and 2.6 g/L). The cell density was increased by 1.3 g/L of glycerol in the vegetative stage. The rapid transition to the inductive stage under nitrogen-depletion conditions caused by 1.3 or 2.6 g/L sodium acetate promoted the accumulation of astaxanthin. The production of astaxanthin by H. lacustris in mass culture using organic carbon sources could increase profitability.
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Affiliation(s)
- Huijeong Byeon
- Department of Biology, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Republic of Korea; (H.B.)
| | - Yunji An
- Department of Biology, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Republic of Korea; (H.B.)
| | - Taesoo Kim
- Department of Biology, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Republic of Korea; (H.B.)
| | - Vijay Rayamajhi
- Department of Biology, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Republic of Korea; (H.B.)
| | - Jihyun Lee
- Korea Fisheries Resources Agency East Sea Branch, Samho-ro, Buk-gu, Pohang 37601, Gyungsangbuk-do, Republic of Korea
| | - HyunWoung Shin
- Department of Biology, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Republic of Korea; (H.B.)
- AlgaeBio, Inc., Asan 31459, Chungcheongnam-do, Republic of Korea
| | - SangMok Jung
- Research Institute for Basic Science, Soonchunhyang University, Asan 31538, Chungcheongnam-do, Republic of Korea
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Lee JI, Oh JH, Karadeniz F, Kong CS, Seo Y. Inhibitory Effects of Sesquiterpenoids Isolated from Artemisia scoparia on Adipogenic Differentiation of 3T3-L1 Preadipocytes. Int J Mol Sci 2023; 25:200. [PMID: 38203371 PMCID: PMC10779302 DOI: 10.3390/ijms25010200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Obesity and related complications are significant health issues in modern society, largely attributed to a sedentary lifestyle and a carbohydrate-rich diet. Since anti-obesity drugs often come with severe side effects, preventative measures are being sought globally, including dietary changes and functional foods that can counteract weight gain. In this context, plant-based metabolites are extensively studied for their advantageous biological effects against obesity. Several plants within the Artemisia genus have been reported to possess anti-adipogenic properties, preventing adipocytes from maturing and accumulating lipids. The present study investigated the anti-adipogenic potential of two sesquiterpenoids, reynosin and santamarine, isolated from A. scoparia in adipose-induced 3T3-L1 preadipocytes. Differentiating 3T3-L1 adipocytes treated with these isolated compounds displayed fewer adipogenic characteristics compared to untreated mature adipocytes. The results indicated that cells treated with reynosin and santamarine accumulated 55.0% and 52.5% fewer intracellular lipids compared to untreated control adipocytes, respectively. Additionally, the mRNA expression of the key adipogenic marker, transcription factor PPARγ, was suppressed by 87.2% and 91.7% following 60 μM reynosin and santamarine treatment, respectively, in differentiated adipocytes. Protein expression was also suppressed in a similar manner, at 92.7% and 82.5% by 60 μM reynosin and santamarine treatment, respectively. Likewise, SERBP1c and C/EBPα were also downregulated at both gene and protein levels in adipocytes treated with samples during differentiation. Further analysis suggested that the anti-adipogenic effect of the compounds might be a result of AMPK activation and the subsequent suppression of MAPK phosphorylation. Overall, the present study suggested that sesquiterpenoids, reynosin, and santamarine were two potential bioactive compounds with anti-adipogenic properties. Further research is needed to explore other bioactive agents within A. scoparia and elucidate the in vivo action mechanisms of reynosin and santamarine.
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Affiliation(s)
- Jung Im Lee
- Incheon Regional Office, National Fishery Products Quality Management Service Incheon, Incheon 22346, Republic of Korea;
| | - Jung Hwan Oh
- Nutritional Education, Graduate School of Education, Silla University, Busan 46958, Republic of Korea;
- Marine Biotechnology Center for Pharmaceuticals and Foods, Silla University, Busan 46958, Republic of Korea; (F.K.); (C.-S.K.)
| | - Fatih Karadeniz
- Marine Biotechnology Center for Pharmaceuticals and Foods, Silla University, Busan 46958, Republic of Korea; (F.K.); (C.-S.K.)
| | - Chang-Suk Kong
- Marine Biotechnology Center for Pharmaceuticals and Foods, Silla University, Busan 46958, Republic of Korea; (F.K.); (C.-S.K.)
- Department of Food and Nutrition, Silla University, Busan 46958, Republic of Korea
| | - Youngwan Seo
- Division of Convergence on Marine Science, Korea Maritime and Ocean University, Busan 49112, Republic of Korea
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Lee HS, Nagahawatta DP, Jeon YJ, Lee MA, Heo CS, Park SJ, Shin HJ. Streptinone, a New Indanone Derivative from a Marine-Derived Streptomyces massiliensis, Inhibits Particulate Matter-Induced Inflammation. Mar Drugs 2023; 21:640. [PMID: 38132961 PMCID: PMC10744446 DOI: 10.3390/md21120640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023] Open
Abstract
Inflammatory diseases caused by air pollution, especially from particulate matter (PM) exposure, have increased daily. Accordingly, attention to treatment or prevention for these inflammatory diseases has grown. Natural products have been recognized as promising sources of cures and prevention for not only inflammatory but also diverse illnesses. As part of our ongoing study to discover bioactive compounds from marine microorganisms, we isolated streptinone, a new indanone derivative (1), along with three known diketopiperazines (2-4) and piericidin A (5), from a marine sediment-derived Streptomyces massiliensis by chromatographic methods. The structure of 1 was elucidated based on the spectroscopic data analysis. The relative and absolute configurations of 1 were determined by 1H-1H coupling constants, 1D NOESY, and ECD calculation. The anti-inflammatory activities of 1 were evaluated through enzyme-linked immunosorbent assay (ELISA), Western blot, and qPCR. Compound 1 suppressed the production of nitric oxide (NO), prostaglandin E2 (PGE2), and pro-inflammatory cytokines such as TNF-α, IL-6, and IL-1β, by inhibiting the Toll-like receptor (TLR)-mediated nuclear factor kappa B (NF-κB) signaling pathway. Therefore, compound 1 could potentially be used as an agent in the prevention and treatment of diverse inflammatory disorders caused by particulate matter.
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Affiliation(s)
- Hwa-Sun Lee
- Marine Natural Products Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (H.-S.L.); (M.A.L.); (C.-S.H.)
- Department of Chemistry, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea;
| | - Dineth Pramuditha Nagahawatta
- Department of Marine Life Sciences, Jeju National University, 102 Jeju Daehak-ro, Jeju 63243, Republic of Korea; (D.P.N.); (Y.-J.J.)
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, 102 Jeju Daehak-ro, Jeju 63243, Republic of Korea; (D.P.N.); (Y.-J.J.)
| | - Min Ah Lee
- Marine Natural Products Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (H.-S.L.); (M.A.L.); (C.-S.H.)
- Department of Chemistry, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea;
| | - Chang-Su Heo
- Marine Natural Products Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (H.-S.L.); (M.A.L.); (C.-S.H.)
- Department of Marine Biotechnology, University of Science and Technology (UST), 217 Gajung-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Sun Joo Park
- Department of Chemistry, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan 48513, Republic of Korea;
| | - Hee Jae Shin
- Marine Natural Products Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (H.-S.L.); (M.A.L.); (C.-S.H.)
- Department of Marine Biotechnology, University of Science and Technology (UST), 217 Gajung-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
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Hanif MA, Han JD, Kim SC, Hossen S, Kho KH. EF-Hand-Binding Secreted Protein Hdh-SMP5 Regulates Shell Biomineralization and Responses to Stress in Pacific Abalone, Haliotis discus hannai. Curr Issues Mol Biol 2023; 45:10079-10096. [PMID: 38132475 PMCID: PMC10741955 DOI: 10.3390/cimb45120629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/05/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
The development of a shell is a complex calcium metabolic process involving shell matrix proteins (SMPs). In this study, we describe the isolation, characterization, and expression of SMP5 and investigate its potential regulatory role in the shell biomineralization of Pacific abalone Haliotis discus hannai. The full-length Hdh-SMP5 cDNA contains 685 bp and encodes a polypeptide of 134 amino acids. Structurally, the Hdh-SMP5 protein belongs to the EF-hand-binding superfamily, which possesses three EF-hand Ca2+-binding regions and is rich in aspartic acid. The distinct clustering patterns in the phylogenetic tree indicate that the amino acid composition and structure of this protein may vary among different SMPs. During early development, significantly higher expression was observed in the trochophore and veliger stages. Hdh-SMP5 was also upregulated during shell biomineralization in Pacific abalone. Long periods of starvation cause Hdh-SMP5 expression to decrease. Furthermore, Hdh-SMP5 expression was observed to be significantly higher under thermal stress at temperatures of 15, 30, and 25 °C for durations of 6 h, 12 h, and 48 h, respectively. Our study is the first to characterize Hdh-SMP5 comprehensively and analyze its expression to elucidate its dynamic roles in ontogenetic development, shell biomineralization, and the response to starvation and thermal stress.
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Affiliation(s)
- Md Abu Hanif
- Department of Fisheries Science, Chonnam National University, Yeosu 59626, Republic of Korea; (M.A.H.); (S.H.)
| | - Ji Do Han
- South Sea Fisheries Research Institute, National Institute of Fisheries Science, Yeosu 59780, Republic of Korea; (J.D.H.); (S.C.K.)
| | - Soo Cheol Kim
- South Sea Fisheries Research Institute, National Institute of Fisheries Science, Yeosu 59780, Republic of Korea; (J.D.H.); (S.C.K.)
| | - Shaharior Hossen
- Department of Fisheries Science, Chonnam National University, Yeosu 59626, Republic of Korea; (M.A.H.); (S.H.)
| | - Kang Hee Kho
- Department of Fisheries Science, Chonnam National University, Yeosu 59626, Republic of Korea; (M.A.H.); (S.H.)
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Jeong GT, Lee C, Cha E, Moon S, Cha YJ, Yu D. Determination of Optimum Processing Condition of High Protein Laver Chip Using Air-Frying and Reaction Flavor Technologies. Foods 2023; 12:4450. [PMID: 38137254 PMCID: PMC10742992 DOI: 10.3390/foods12244450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/30/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
This study aimed to develop a high-protein and gluten-free laver chip using air-frying and reaction flavor technologies via response surface methodology (RSM). The optimum processing condition (w/w) was determined with a batter composition of 20% dried laver, 21.3% hair tail surimi, and 58.7% rice flour. Additional ingredients included б-gluconolactone, NaHCO3, soybean oil, corn syrup, table salt, saccharin, and a mixture of distilled water and reaction flavor-inducing solution (RFIS). The laver pellet processed and dried (50 °C, 1-2 h) with air-frying (195 °C, 52.5 s) to process the laver chip. The values of brittleness and puffing ratio of the laver chip were 6.93 ± 0.33 N and 116.19 ± 0.48%, respectively, with an error within 10% of the predicted values of RSM. RFIS was prepared via RSM with the addition of precursor substances (w/v) of methionine 0.54%, threonine 3.30%, glycine 2.40%, glutamic acid 0.90%, and glucose 3% to distilled water and then heating reaction (121 °C, 90 min). The quantitatively descriptive analysis (QDA) of RFIS, baked potato-like and savory odor were 6.00 ± 0.78 and 4.00 ± 0.91, respectively, with an error within 10% of the predicted values. The laver chip exhibited high-protein (24.26 ± 0.10 g%) and low-calorie (371.56 kcal) contents.
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Affiliation(s)
- Gyeong-Tae Jeong
- Interdisciplinary Program in Senior Human Ecology, Changwon National University, Changwon 51140, Republic of Korea; (G.-T.J.); (C.L.); (E.C.); (S.M.)
| | - Changheon Lee
- Interdisciplinary Program in Senior Human Ecology, Changwon National University, Changwon 51140, Republic of Korea; (G.-T.J.); (C.L.); (E.C.); (S.M.)
| | - Eunsong Cha
- Interdisciplinary Program in Senior Human Ecology, Changwon National University, Changwon 51140, Republic of Korea; (G.-T.J.); (C.L.); (E.C.); (S.M.)
| | - Seungmin Moon
- Interdisciplinary Program in Senior Human Ecology, Changwon National University, Changwon 51140, Republic of Korea; (G.-T.J.); (C.L.); (E.C.); (S.M.)
| | - Yong-Jun Cha
- Department of Food and Nutrition, Changwon National University, Changwon 51140, Republic of Korea;
| | - Daeung Yu
- Interdisciplinary Program in Senior Human Ecology, Changwon National University, Changwon 51140, Republic of Korea; (G.-T.J.); (C.L.); (E.C.); (S.M.)
- Department of Food and Nutrition, Changwon National University, Changwon 51140, Republic of Korea;
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23
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Nguyen HT, Lee Y, Ahn J, Han TH, Park JK. A Low-Cost Lightweight Deflectometer with an Arduino-Based Signal Interpretation Kit to Evaluate Soil Modulus. Sensors (Basel) 2023; 23:9710. [PMID: 38139556 PMCID: PMC10748076 DOI: 10.3390/s23249710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/15/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023]
Abstract
This research presents an innovative solution aimed at addressing the cost and accessibility challenges associated with soil stiffness analysis in construction projects. Traditional lightweight deflectometer (LWD) systems have limitations due to their high cost and proprietary nature, prompting the need for a more widely accessible technology. To fulfill this purpose, a low-cost, open-source LWD onboard sensor signal interpretation system, utilizing Electro-Mechanical and Micro-Electro-Mechanical-System (MEMS) technology-based sensors in conjunction with an Arduino® Uno and ADS1262 Breakout Board, has been developed. This system efficiently processes raw signal data into deflection and force units, enabling precise soil property analysis. Thorough enhancements, calibration, and alignment procedures have been applied and validated through field tests, which have produced highly satisfactory results. By significantly reducing costs while maintaining accuracy, this developed system has the potential to popularize quality control and assurance practices in the construction industry. This open-source approach not only enhances affordability but also broadens accessibility, making soil property analysis more efficient and attainable for a wider range of construction projects.
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Affiliation(s)
- Huyen-Tram Nguyen
- Department of Civil and Environmental Engineering, Pusan National University, Busan 46241, Republic of Korea; (H.-T.N.); (Y.L.)
| | - Yunje Lee
- Department of Civil and Environmental Engineering, Pusan National University, Busan 46241, Republic of Korea; (H.-T.N.); (Y.L.)
| | - Jaehun Ahn
- Department of Civil and Environmental Engineering, Pusan National University, Busan 46241, Republic of Korea; (H.-T.N.); (Y.L.)
| | - Taek Hee Han
- Ocean Space Development & Energy Research Department, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea; (T.H.H.); (J.K.P.)
| | - Jun Kil Park
- Ocean Space Development & Energy Research Department, Korea Institute of Ocean Science and Technology, Busan 49111, Republic of Korea; (T.H.H.); (J.K.P.)
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24
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Kook M, Kim I, Seo J, Kim H, Nam H, Han N. The Relationship Between Low Back Pain and Sagittal Spinal Alignment and Back Muscle Mass in Korean Fishery Workers. Ann Rehabil Med 2023; 47:459-467. [PMID: 37990502 PMCID: PMC10767211 DOI: 10.5535/arm.23075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/29/2023] [Accepted: 09/06/2023] [Indexed: 11/23/2023] Open
Abstract
OBJECTIVE To investigate the relationship between low back pain (LBP) and sagittal spino-pelvic parameters along with the relationship between LBP and back muscle mass in Korean male and female fishery workers. METHODS This retrospective study included a total of 146 subjects who underwent Fishermen's health survey conducted between June 2018 and August 2020. LBP was evaluated through visual analogue scale (VAS) and Oswestry Disability Index (ODI). Sagittal spino-pelvic parameters were measured from whole spine standing X-rays. Back muscle cross-sectional areas were identified through lumbar spine magnetic resonance imaging and body composition was analyzed through bioelectrical impedance analysis. RESULTS The study included 75 males and 71 females, with an average age of 58.33 years for males and 56.45 years for females. Female subjects exhibited higher VAS and ODI scores, larger pelvic tilt (PT) and trunk fat mass and smaller trunk muscle mass compared to males. In female, ODI positively correlated with sagittal vertical axis (SVA) and PT. No significant correlations were found between ODI scores and body composition in either sex. The high ODI group showed greater SVA, PT, and pelvic incidence-lumbar lordosis and higher trunk fat/muscle ratio. Psoas muscle mass, total and skeletal muscle mass and trunk muscle mass of that group were smaller than those of low ODI group. CONCLUSION Spino-pelvic parameters and back muscle mass were associated with ODI and there were differences between Korean male and female fishery workers.
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Affiliation(s)
- Minjung Kook
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Insuh Kim
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Jeongyeon Seo
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Hyundong Kim
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
- Center for Fishermen’s Safety and Health, Inje University Busan Paik Hospital, Busan, Korea
| | - Heesung Nam
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Nami Han
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
- Center for Fishermen’s Safety and Health, Inje University Busan Paik Hospital, Busan, Korea
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25
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Kang G, Woo WS, Kim KH, Son HJ, Sohn MY, Kong HJ, Kim YO, Kim DG, Kim EM, Noh ES, Park CII. Clinical Assessment of Thermotherapy Applications during Hepatectomy and Laparotomy in Sturgeon ( Acipenser ruthenus): Impact on Bioparameter Variations Based on Liver Condition. Vet Sci 2023; 10:682. [PMID: 38133233 PMCID: PMC10748359 DOI: 10.3390/vetsci10120682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/21/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023] Open
Abstract
Surgical techniques are gaining attention for treating physical diseases in aquaculture and aquarium fish. Sturgeon is a suitable species for surgical experiments due to its industrial significance. Maintaining homeostasis is crucial during surgical procedures, and the liver plays a major role in immune regulation. High temperature is suggested to improve physiological activity and wound healing. This study investigated differences in hepatectomy sturgeons' tolerance and histopathological responses of internal organs. Moreover, this study investigated the effects of high temperatures on wound healing and hematopoietic recovery in fish undergoing surgical procedures. The liver condition was found to play a pivotal role in the analysis, and cortisol levels were affected by anesthesia. The results showed that high temperature facilitated hematopoietic recovery and wound healing, but excessive induction of physiological activity caused damage. Managing high temperatures and liver conditions induced a remarkable improvement in wound healing. However, anesthesia itself can be a significant stressor for fish, and wound healing requires a greater amount of energy. Further research is needed to understand the stress factors caused by surgical procedures and anesthesia and to promote animal welfare in fishery products.
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Affiliation(s)
- Gyoungsik Kang
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Gyeongsangnam-do, Republic of Korea; (G.K.)
| | - Won-Sik Woo
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Gyeongsangnam-do, Republic of Korea; (G.K.)
| | - Kyung-Ho Kim
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Gyeongsangnam-do, Republic of Korea; (G.K.)
| | - Ha-Jeong Son
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Gyeongsangnam-do, Republic of Korea; (G.K.)
| | - Min-Young Sohn
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Gyeongsangnam-do, Republic of Korea; (G.K.)
| | - Hee Jeong Kong
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea; (H.J.K.)
| | - Young-Ok Kim
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea; (H.J.K.)
| | - Dong-Gyun Kim
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea; (H.J.K.)
| | - Eun Mi Kim
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea; (H.J.K.)
| | - Eun Soo Noh
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea; (H.J.K.)
| | - Chan-II Park
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Gyeongsangnam-do, Republic of Korea; (G.K.)
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Choi HR, Choi SS. Ionization behaviors of nitrotoluenes and dinitrotoluenes by reactions with acetone-related reactant ion. J Mass Spectrom 2023; 58:e4983. [PMID: 37950649 DOI: 10.1002/jms.4983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/03/2023] [Accepted: 10/17/2023] [Indexed: 11/13/2023]
Abstract
Dinitrotoluenes (DNTs) and nitrotoluenes (NTs) are found in the environment as metabolites of trinitrotoluene (TNT). When acetone is used as the solvent/eluent in atmospheric pressure chemical ionization-mass spectrometry (APCI-MS), the reactant ion is [2Acetone + O2 ]•- for the negative ion mode. The reactant ion reacts with an analyte to produce M•- and/or [M - H]- under atmospheric pressure. In this study, ionization behaviors of NT (2-, 3-, and 4-NTs) and DNT isomers (2,3-, 2,4-, and 2,6-DNTs) by reactions with [2Acetone + O2 ]•- were investigated. The energy-minimized structures of the product ions and their energies were calculated to explain the differences in the ionization behaviors. Typical NT- and DNT-related ions were produced by reactions with [2Acetone + O2 ]•- ; NT•- , [NT - H]- , DNT•- , [DNT - H]- , and [DNT - NO]- ions. The ionization efficiencies of NT- and DNT-related ions increased by increasing the source fragmentor voltage, and those of DNT-related ions were higher than those of the NT-related ions owing to the presence of an additional nitro group. The ionization efficiency of 3-NT•- was higher than that of [NT - H]- , while that of [DNT - H]- was higher than those of DNT•- and [DNT - NO]- . The ionization efficiency order of NT•- was 3-NT > 4-NT > 2-NT, while that of [DNT - H]- was 2,4-DNT > 2,6-DNT > 2,3-DNT. The [NT - H]- and [DNT - H]- ions were stabilized by resonance structures containing nitro groups. The [DNT - NO]- ions were formed through the transition state.
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Affiliation(s)
- He-Ryun Choi
- Department of Chemistry, Sejong University, Seoul, Republic of Korea
| | - Sung-Seen Choi
- Department of Chemistry, Sejong University, Seoul, Republic of Korea
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Kim HJ, Yang J, Herath KHINM, Jeon YJ, Son YO, Kwon D, Kim HJ, Jee Y. Oral Administration of Sargassum horneri Suppresses Particulate Matter-Induced Oxidative DNA Damage in Alveolar Macrophages of Allergic Airway Inflammation: Relevance to PM-Mediated M1/M2 AM Polarization. Mol Nutr Food Res 2023; 67:e2300462. [PMID: 37986167 DOI: 10.1002/mnfr.202300462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Indexed: 11/22/2023]
Abstract
SCOPE Particulate matter (PM) can cause cellular oxidative damage and promote respiratory diseases. It has recently shown that Sargassum horneri ethanol extract (SHE) containing sterols and gallic acid reduces PM-induced oxidative stress in mice lung cells through ROS scavenging and metal chelating. In this study, the role of alveolar macrophages (AMs) is identified that are particularly susceptible to DNA damage due to PM-triggered oxidative stress in lungs of OVA-sensitized mice exposed to PM. METHODS AND RESULTS The study scrutinizes if PM exposure causes oxidative DNA damage to AMs differentially depending on their type of polarization. Further, SHE's potential is investigated in reducing oxidative DNA damage in polarized AMs and restoring AM polarization in PM-induced allergic airway inflammation. The study discovers that PM triggers prolonged oxidative stress to AMs, leading to lipid peroxidation in them and alveolar epithelial cells. Particularly, AMs are polarized to M2 phenotype (F4/80+ CD206+ ) with enhanced oxidative DNA damage when subject to PM-induced oxidative stress. However, SHE repairs oxidative DNA damage in M1- and M2-polarized AMs and reduces AMs polarization imbalance due to PM exposure. CONCLUSION These results suggest the possibility of SHE as beneficial foods against PM-induced allergic airway inflammation via suppression of AM dysfunction.
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Affiliation(s)
- Hyo Jin Kim
- Department of Food Bioengineering, Jeju National University, Jeju, 63243, Republic of Korea
| | - Jiwon Yang
- Interdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, Jeju, 63243, Republic of Korea
- Department of Animal Biotechnology, Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, 63243, Republic of Korea
| | | | - You-Jin Jeon
- Department of Marine Life Science, School of Marine Biomedical Sciences, Jeju National University, Jeju, 63243, Republic of Korea
| | - Young-Ok Son
- Interdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, Jeju, 63243, Republic of Korea
- Department of Animal Biotechnology, Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju, 63243, Republic of Korea
| | - Doyoung Kwon
- College of Pharmacy, Jeju National University, Jeju, 63243, Republic of Korea
- Jeju Research Institute of Pharmaceutical Sciences, Jeju National University, Jeju, 63243, Republic of Korea
| | - Hyun Jung Kim
- Department of Food Bioengineering, Jeju National University, Jeju, 63243, Republic of Korea
| | - Youngheun Jee
- Interdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, Jeju, 63243, Republic of Korea
- Department of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, 63243, Republic of Korea
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Rod-in W, Surayot U, You S, Park WJ. Inhibitory effects of polysaccharides from Korean ginseng berries on LPS-induced RAW264.7 macrophages. PLoS One 2023; 18:e0294675. [PMID: 38015971 PMCID: PMC10684074 DOI: 10.1371/journal.pone.0294675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 11/05/2023] [Indexed: 11/30/2023] Open
Abstract
Polysaccharides isolated from Korean ginseng berries (GBPs) have shown beneficial effects such as immunomodulatory, anti-inflammatory, anti-cancer, and anti-diabetic properties. However, little is known about anti-inflammatory effects of GBPs. Thus, the purpose of this study was to investigate anti-inflammatory properties of four fractions of GBPs, namely GBP-C, GBP-F1, GBP-F2, and GBP-F3, in macrophages. Their toxicities and effects on NO production in RAW264.7 cells were assessed by culturing cells with various concentrations of GBPs and stimulating cells with LPS. Furthermore, expression levels of inflammatory mediators, cytokines, cell surface molecules, and immune signaling pathways were evaluated in LPS-stimulated macrophages using different fractions of GBPs at 450 μg/mL. These GBPs activated LPS-stimulated RAW264.7 cells to significantly reduce NO production. They suppressed the expression of mRNA and cell surface molecules via MAPK and NF-κB pathways. Collectively, results revealed that all four GBP fractions showed anti-inflammatory effects, with GBP-F1 having a more efficient anti-inflammatory effect than GBP-C, GBP-F2, and GBP-F3. The structure of GBP-F1 mainly consists of 1 → 3)- Araf, 1 → 4)- Glcp, and 1 → 6)-Galp glycosidic linkages. These results demonstrate that GBPs can be employed as alternative natural sources of anti-inflammatory agents.
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Affiliation(s)
- Weerawan Rod-in
- Department of Agricultural Science, Faculty of Agriculture Natural Resources and Environment, Naresuan University, Phitsanulok, Thailand
- Center of Excellence in Research for Agricultural Biotechnology, Faculty of Agriculture, Natural Resources and Environment, Naresuan University, Phitsanulok, Thailand
- Department of Marine Bio Food Science, Gangneung-Wonju National University, Gangneung, Gangwon, Korea
| | - Utoomporn Surayot
- College of Maritime Studies and Management, Chiang Mai University, Samut Sakhon, Thailand
| | - SangGuan You
- Department of Marine Bio Food Science, Gangneung-Wonju National University, Gangneung, Gangwon, Korea
| | - Woo Jung Park
- Department of Marine Bio Food Science, Gangneung-Wonju National University, Gangneung, Gangwon, Korea
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Kihm JH, Zawierucha K, Rho HS, Park TYS. Homology of the head sensory structures between Heterotardigrada and Eutardigrada supported in a new species of water bear (Ramazzottiidae: Ramazzottius). Zoological Lett 2023; 9:22. [PMID: 38012802 PMCID: PMC10680360 DOI: 10.1186/s40851-023-00221-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 10/05/2023] [Indexed: 11/29/2023]
Abstract
Phylum Tardigrada is represented by microscopic eight-legged panarthropods that inhabit terrestrial and marine environments. Although tardigrades are emerging model animals for areas of research including physiology, evolutionary biology, and astrobiology, knowledge of their external morphology remains insufficient. For instance, homologies between marine and terrestrial relatives largely remain unexplored. In the present study we provide detailed pictures of the head sensory organs in a new tardigrade, Ramazzottius groenlandensis sp. nov. Specimens were collected from a mixed moss and lichen sample on Ella Island, East Greenland. The new species differs from congeneric species in the presence of polygonal sculpturing on the dorsal cuticle, which is accentuated in the posterior region of the body, a lateral papilla on leg IV, and distinctive egg morphology. A Bayesian phylogenetic analysis (18S rRNA + 28S rRNA + COI) places the new species within the genus Ramazzottius with high confidence. Interestingly, the new species shows a full set of well-developed cephalic organs, which correspond to all sensory fields found in eutardigrades. Details on the full set of head organs were present only for heterotardigrades. The surface of these organs is covered with small pores, which presumably play a sensory role. This discovery suggests the homology of head sensory structures between heterotardigrades and eutardigrades, implying that the distinctive arrangement and positioning of sensory organs on the head is a plesiomorphic feature of tardigrades. Moreover, we find that the Ramazzottius oberhaeuseri morphotype forms a morphogroup, not a monophyletic species complex.
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Affiliation(s)
- Ji-Hoon Kihm
- Division of Earth Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, Korea.
| | - Krzysztof Zawierucha
- Department of Animal Taxonomy and Ecology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, Poznań, 61-614, Poland
| | - Hyun Soo Rho
- East Sea Environmental Research Center, East Sea Research Institute, Korea Institute of Ocean Science & Technology, 48 Haeyanggwahak-gil, Uljin, Gyeongsangbuk-do, 36315, Korea
| | - Tae-Yoon S Park
- Division of Earth Sciences, Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, Korea
- Polar Sciences, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Korea
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30
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Jannat K, Balakrishnan R, Han JH, Yu YJ, Kim GW, Choi DK. The Neuropharmacological Evaluation of Seaweed: A Potential Therapeutic Source. Cells 2023; 12:2652. [PMID: 37998387 PMCID: PMC10670678 DOI: 10.3390/cells12222652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/11/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023] Open
Abstract
The most common neurodegenerative diseases (NDDs), such as Alzheimer's disease (AD) and Parkinson's disease (PD), are the seventh leading cause of mortality and morbidity in developed countries. Clinical observations of NDD patients are characterized by a progressive loss of neurons in the brain along with memory decline. The common pathological hallmarks of NDDs include oxidative stress, the dysregulation of calcium, protein aggregation, a defective protein clearance system, mitochondrial dysfunction, neuroinflammation, neuronal apoptosis, and damage to cholinergic neurons. Therefore, managing this pathology requires screening drugs with different pathological targets, and suitable drugs for slowing the progression or prevention of NDDs remain to be discovered. Among the pharmacological strategies used to manage NDDs, natural drugs represent a promising therapeutic strategy. This review discusses the neuroprotective potential of seaweed and its bioactive compounds, and safety issues, which may provide several beneficial insights that warrant further investigation.
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Affiliation(s)
- Khoshnur Jannat
- Department of Applied Life Sciences, Graduate School, Konkuk University, Chungju 27478, Republic of Korea; (K.J.); (J.-H.H.); (Y.-J.Y.); (G.-W.K.)
| | - Rengasamy Balakrishnan
- Department of Biotechnology, Research Institute of Inflammatory Disease (RID), College of Biomedical and Health Science, Konkuk University, Chungju 27478, Republic of Korea;
| | - Jun-Hyuk Han
- Department of Applied Life Sciences, Graduate School, Konkuk University, Chungju 27478, Republic of Korea; (K.J.); (J.-H.H.); (Y.-J.Y.); (G.-W.K.)
| | - Ye-Ji Yu
- Department of Applied Life Sciences, Graduate School, Konkuk University, Chungju 27478, Republic of Korea; (K.J.); (J.-H.H.); (Y.-J.Y.); (G.-W.K.)
| | - Ga-Won Kim
- Department of Applied Life Sciences, Graduate School, Konkuk University, Chungju 27478, Republic of Korea; (K.J.); (J.-H.H.); (Y.-J.Y.); (G.-W.K.)
| | - Dong-Kug Choi
- Department of Applied Life Sciences, Graduate School, Konkuk University, Chungju 27478, Republic of Korea; (K.J.); (J.-H.H.); (Y.-J.Y.); (G.-W.K.)
- Department of Biotechnology, Research Institute of Inflammatory Disease (RID), College of Biomedical and Health Science, Konkuk University, Chungju 27478, Republic of Korea;
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Lee SG, Park CH, Kang H. Effect of E. cava and C. indicum Complex Extract on Phorbol 12-Myristate 13-Acetate (PMA)-Stimulated Inflammatory Response in Human Pulmonary Epithelial Cells and Particulate Matter (PM) 2.5-Induced Pulmonary Inflammation in Mice. Pharmaceutics 2023; 15:2621. [PMID: 38004599 PMCID: PMC10674792 DOI: 10.3390/pharmaceutics15112621] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 10/31/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
This study explores the potential of a natural composite formulation known as ED, consisting of Ecklonia cava (E. cava, family: Lessoniaceae) and Chrysanthemum indicum Linne (C. indicum, family: Asteraceae), in alleviating lung inflammation induced by fine particulate matter (PM2.5). Initial assessments confirmed that neither ED nor one of its components, dieckol, exhibited cytotoxic effects on A549 cells. Subsequently, the impact of ED and dieckol on MUC5AC gene expression in A549 cells stimulated by phorbol 12-myristate 13-acetate (PMA) was investigated, revealing promising results that demonstrated a dose-dependent inhibition of MUC5AC gene expression. The study also delves into the underlying mechanisms, demonstrating that ED and dieckol effectively suppressed the phosphorylation of mitogen-activated protein kinases (MAPKs), including JNK, ERK, and p38, which are known to be involved in the regulation of MUC5AC gene expression. In in vivo experiments using a PM2.5-induced pulmonary inflammation mouse model, the research findings showed that ED mitigated cellular accumulation in the airways, leading to a significant reduction in the total cell count in bronchoalveolar lavage fluid (BALF). Moreover, ED exhibited protective effects against PM2.5-induced pulmonary damage, characterized by reduced inflammatory cell infiltration and decreased mucus secretion in pulmonary tissues. Additionally, ED's anti-inflammatory properties were evident in its ability to decrease the levels of key inflammatory cytokines, TNF-α and IL-6, both in the serum and lung tissue of the PM2.5-induced pulmonary inflammation mouse model. These findings suggest the potential of ED as a therapeutic agent for inflammatory respiratory diseases.
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Affiliation(s)
| | | | - Hyun Kang
- Department of Medical Laboratory Science, College of Health Science, Dankook University, Cheonan-si 31116, Chungnam, Republic of Korea; (S.-G.L.); (C.-H.P.)
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32
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Park K, Moon BS, Kwak IS. Responses of multifunctional immune complement component 1q (C1q) and apoptosis-related genes in Macrophthalmus japonicus tissues and human cells following exposure to environmental pollutants. Cell Stress Chaperones 2023; 28:959-968. [PMID: 37880562 PMCID: PMC10746657 DOI: 10.1007/s12192-023-01389-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 06/13/2023] [Accepted: 10/17/2023] [Indexed: 10/27/2023] Open
Abstract
Apoptosis is a key defense process for multiple immune system functions, playing a central role in maintaining homeostasis and cell development. The purpose of this study was to evaluate the effects of environmental pollutant exposure on immune-related apoptotic pathways in crab tissues and human cells. To do this, we characterized the multifunctional immune complement component 1q (C1q) gene and analyzed C1q expression in Macrophthalmus japonicus crabs after exposure to di(2-ethylhexyl) phthalate (DEHP) or hexabromocyclododecanes (HBCDs). Moreover, the responses of apoptotic signal-related genes were observed in M. japonicus tissues and human cell lines (HEK293T and HCT116). C1q gene expression was downregulated in the gills and hepatopancreas of M. japonicus after exposure to DEHP or HBCD. Pollutant exposure also increased antioxidant enzyme activities and altered transcription of 15 apoptotic signaling genes in M. japonicus. However, patterns in apoptotic signaling in response to these pollutants differed in human cells. HBCD exposure generated an apoptotic signal (cleaved caspase-3) and inhibited cell growth in both cell lines, whereas DEHP exposure did not produce such a response. These results suggest that exposure to environmental pollutants induced different levels of immune-related apoptosis depending on the cell or tissue type and that this induction of apoptotic signaling may trigger an initiation of carcinogenesis in M. japonicus and in humans as consumers.
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Affiliation(s)
- Kiyun Park
- Fisheries Science Institute, Chonnam National University, Yeosu, 59626, South Korea
| | - Byoung-San Moon
- Department of Biotechnology, Chonnam National University, Yeosu, 59626, South Korea
| | - Ihn-Sil Kwak
- Fisheries Science Institute, Chonnam National University, Yeosu, 59626, South Korea.
- Department of Ocean Integrated Science, Chonnam National University, Yeosu, 59626, South Korea.
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Kang N, Kim EA, Heo SY, Heo SJ. Structure-Based In Silico Screening of Marine Phlorotannins for Potential Walrus Calicivirus Inhibitor. Int J Mol Sci 2023; 24:15774. [PMID: 37958757 PMCID: PMC10647355 DOI: 10.3390/ijms242115774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/26/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
A new calicivirus isolated from a walrus was reported in 2004. Since unknown marine mammalian zoonotic viruses could pose great risks to human health, this study aimed to develop therapeutic countermeasures to quell any potential outbreak of a pandemic caused by this virus. We first generated a 3D model of the walrus calicivirus capsid protein and identified compounds from marine natural products, especially phlorotannins, as potential walrus calicivirus inhibitors. A 3D model of the target protein was generated using homology modeling based on two publicly available template sequences. The sequence of the capsid protein exhibited 31.3% identity and 42.7% similarity with the reference templates. The accuracy and reliability of the predicted residues were validated via Ramachandran plotting. Molecular docking simulations were performed between the capsid protein 3D model and 17 phlorotannins. Among them, five phlorotannins demonstrated markedly stable docking profiles; in particular, 2,7-phloroglucinol-6,6-bieckol showed favorable structural integrity and stability during molecular dynamics simulations. The results indicate that the phlorotannins are promising walrus calicivirus inhibitors. Overall, the study findings showcase the rapid turnaround of in silico-based drug discovery approaches, providing useful insights for developing potential therapies against novel pathogenic viruses, especially when the 3D structures of the viruses remain experimentally unknown.
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Affiliation(s)
| | | | | | - Soo-Jin Heo
- Jeju Bio Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of Korea; (N.K.); (E.-A.K.); (S.-Y.H.)
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34
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Eom SH, Hong GL, Kang HB, Lee NS, Kim DK, Jeong YG, Kim CS, Yoo YC, Lee BH, Jung JY, Kim DS, Han SY. Neuroprotective Effects of Water Extract from Brown Algae Petalonia binghamiae in an Experimental Model of Focal Cerebral Ischemia In Vitro and In Vivo. Curr Issues Mol Biol 2023; 45:8427-8443. [PMID: 37886974 PMCID: PMC10605114 DOI: 10.3390/cimb45100531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 10/28/2023] Open
Abstract
Focal cerebral ischemia (fCI) can result in brain injury and sensorimotor deficits. Brown algae are currently garnering scientific attention as potential therapeutic candidates for fCI. This study investigated the therapeutic effects of the hot water extract of Petalonia binghamiae (wPB), a brown alga, in in vitro and in vivo models of fCI. The neuroprotective efficacy of wPB was evaluated in an in vitro excitotoxicity model established using HT-22 cells challenged with glutamate. Afterward, C57/BL6 mice were administered wPB for 7 days (10 or 100 mg/kg, intragastric) and subjected to middle cerebral artery occlusion and reperfusion (MCAO/R) operation, which was used as an in vivo fCI model. wPB co-incubation significantly inhibited cell death, oxidative stress, and apoptosis, as well as stimulated the expression of heme oxygenase-1 (HO-1), an antioxidant enzyme, and the nuclear translocation of its upstream regulator, nuclear factor erythroid 2-related factor 2 (Nrf2) in HT-22 cells challenged with glutamate-induced excitotoxicity. Pretreatment with either dose of wPB significantly attenuated infarction volume, neuronal death, and sensorimotor deficits in an in vivo fCI model. Furthermore, the attenuation of oxidative stress and apoptosis in the ischemic lesion accompanied the wPB-associated protection. This study suggests that wPB can counteract fCI via an antioxidative effect, upregulating the Nrf2/HO-1 pathway.
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Affiliation(s)
- Sun Ho Eom
- Healinnols Inc., Daejeon 34054, Republic of Korea; (S.H.E.); (H.B.K.)
| | - Geum-Lan Hong
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea (N.-S.L.); (D.K.K.); (Y.G.J.)
| | - Hyun Bae Kang
- Healinnols Inc., Daejeon 34054, Republic of Korea; (S.H.E.); (H.B.K.)
| | - Nam-Seob Lee
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea (N.-S.L.); (D.K.K.); (Y.G.J.)
| | - Do Kyung Kim
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea (N.-S.L.); (D.K.K.); (Y.G.J.)
| | - Young Gil Jeong
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea (N.-S.L.); (D.K.K.); (Y.G.J.)
| | - Chun-Sung Kim
- Department of Oral Biochemistry, College of Dentistry, Chosun University, Gwangju 61452, Republic of Korea;
| | - Yung Choon Yoo
- Department of Microbiology, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea;
| | - Bong Ho Lee
- Department of Chemical Technology, Hanbat National University, Daejeon 34158, Republic of Korea;
| | - Ju-Young Jung
- Department of Histology & Institute of Veterinary Science, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Dong-Sub Kim
- Division of Natural Product Research, Korea Prime Pharmacy Co., Ltd., Gwangju 61473, Republic of Korea;
| | - Seung Yun Han
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 35365, Republic of Korea (N.-S.L.); (D.K.K.); (Y.G.J.)
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35
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Cha J, Hong S, Lee J, Gwak J, Kim M, Mok S, Moon HB, Jones PD, Giesy JP, Khim JS. Identification of Mid-Polar and Polar AhR Agonists in Cetaceans from Korean Coastal Waters: Application of Effect-Directed Analysis with Full-Scan Screening. Environ Sci Technol 2023; 57:15644-15655. [PMID: 37787753 PMCID: PMC10586376 DOI: 10.1021/acs.est.3c04311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 10/04/2023]
Abstract
Major aryl hydrocarbon receptor (AhR) agonists were identified in extracts of blubber, liver, and muscle from six long-beaked common dolphins (Delphinus capensis) and one fin whale (Balaenoptera physalus) collected from Korean coastal waters using effect-directed analysis. Results of the H4IIE-luc bioassay indicated that the polar fractions of blubber and liver extracts from the fin whale exhibited relatively high AhR-mediated potencies. Based on full-scan screening with high-resolution mass spectrometry, 37 AhR agonist candidates, spanning four use categories: pharmaceuticals, pesticides, cosmetics, and natural products, were selected. Among these, five polar AhR agonists were newly identified through toxicological confirmation. Concentrations of polar AhR agonists in cetaceans were tissue-specific, with extracts of blubber and liver containing greater concentrations than muscle extracts. Polar AhR agonists with great log KOA values (>5) were found to biomagnify in the marine food chain potentially. Polar AhR agonists contributed 8.9% of the observed AhR-mediated potencies in blubber and 49% in liver. Rutaecarpine and alantolactone contributed significantly to the total AhR-mediated potencies of blubber, whereas hydrocortisone was a major AhR contributor in the liver of the fin whale. This study is the first to identify the tissue-specific accumulation of polar AhR agonists in blubber and liver extracts of cetaceans.
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Affiliation(s)
- Jihyun Cha
- Department
of Marine Environmental Science, Chungnam
National University, Daejeon 34134, Republic
of Korea
| | - Seongjin Hong
- Department
of Marine Environmental Science, Chungnam
National University, Daejeon 34134, Republic
of Korea
| | - Junghyun Lee
- School
of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
- Department
of Environmental Education, Kongju National
University, Gongju 32588, Republic of Korea
| | - Jiyun Gwak
- Department
of Marine Environmental Science, Chungnam
National University, Daejeon 34134, Republic
of Korea
| | - Mungi Kim
- Department
of Marine Environmental Science, Chungnam
National University, Daejeon 34134, Republic
of Korea
| | - Sori Mok
- Department
of Marine Science and Convergence Engineering, Hanyang University, Ansan 15588, Republic
of Korea
| | - Hyo-Bang Moon
- Department
of Marine Science and Convergence Engineering, Hanyang University, Ansan 15588, Republic
of Korea
| | - Paul D. Jones
- Department
of Veterinary Biomedical Sciences & Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan S7N5B3, Canada
| | - John P. Giesy
- Department
of Veterinary Biomedical Sciences & Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan S7N5B3, Canada
- Department
of Integrative Biology and Institute for Integrative Toxicology, Michigan State University, East Lansing, Michigan 48824, United States
- Department
of Environmental Science, Baylor University, Waco, Texas 76798-7266, United States
| | - Jong Seong Khim
- School
of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea
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Woo WS, Shim SH, Kang G, Kim KH, Son HJ, Sohn MY, Lee S, Kim J, Seo JS, Kwon MG, Kim DH, Park CI. Assessment of Salinomycin's Potential to Treat Microcotyle sebastis in Korean Rockfish ( Sebastes schlegelii). Animals (Basel) 2023; 13:3233. [PMID: 37893959 PMCID: PMC10603687 DOI: 10.3390/ani13203233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/11/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Aquaculture, a crucial sector of the global food industry, faces a myriad of issues due to parasitic invasions. One such parasite, Microcotyle sebastis, which afflicts Korean rockfish in South Korea, has a significant economic impact. The impending danger of resistance to traditional anthelmintics necessitates the exploration of new antiparasitic candidates. Although the efficacy of salinomycin against aquatic parasites such as ciliates and sporozoans is known, its influence on monogeneans has yet to be studied. Therefore, this study investigated the efficacy and safety of salinomycin for the treatment of M. sebastis infections, presenting the first exploration of salinomycin's therapeutic potential against monogeneans. In vitro examinations revealed a minimum effective concentration of salinomycin of 5 mg/kg, which led to necrosis of the haptor upon dislodging from the gill filaments. The one-time oral administration of the drug at concentrations of 5 mg/kg and 10 mg/kg showed a significant dose-dependent reduction in parasite counts, with no apparent behavioral side effects in Korean rockfish. Biochemical analyses monitored the liver, heart, and kidney enzymes, specifically aspartate transaminase (AST), alanine transaminase (ALT), blood urea nitrogen (BUN), and creatine kinase-myocardial band (CK-MB). At both 20 °C and 13 °C, no significant differences were observed in the levels of AST and ALT. However, at 20 °C, alterations in BUN levels were evident on Day 14, a deviation not observed at 13 °C. The CK-MB analysis revealed elevated enzyme levels at both temperatures when compared to the control group, reflecting the similar changes observed in terrestrial animals administered salinomycin. The biochemical data suggest that the oral administration of salinomycin is potentially more favorable at 13 °C than at 20 °C. Although our findings warrant further comprehensive studies, including on the long-term and potential effects on nontarget species and water quality, they also suggest that salinomycin could be considered as an alternative or adjunctive treatment if resistance to the currently used praziquantel against M. sebastis is confirmed.
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Affiliation(s)
- Won-Sik Woo
- Department of Marine Biology & Aquaculture, Institute of Marine Industry, College of Marine Science, Gyeongsang National University, 2 Tongyeonghaean-ro, Tongyeong 53064, Republic of Korea
| | - Sang Hee Shim
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Gyoungsik Kang
- Department of Marine Biology & Aquaculture, Institute of Marine Industry, College of Marine Science, Gyeongsang National University, 2 Tongyeonghaean-ro, Tongyeong 53064, Republic of Korea
| | - Kyung-Ho Kim
- Department of Marine Biology & Aquaculture, Institute of Marine Industry, College of Marine Science, Gyeongsang National University, 2 Tongyeonghaean-ro, Tongyeong 53064, Republic of Korea
| | - Ha-Jeong Son
- Department of Marine Biology & Aquaculture, Institute of Marine Industry, College of Marine Science, Gyeongsang National University, 2 Tongyeonghaean-ro, Tongyeong 53064, Republic of Korea
| | - Min-Young Sohn
- Department of Marine Biology & Aquaculture, Institute of Marine Industry, College of Marine Science, Gyeongsang National University, 2 Tongyeonghaean-ro, Tongyeong 53064, Republic of Korea
| | - Seungjin Lee
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Jaekyeong Kim
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Jung-Soo Seo
- Aquatic Disease Control Division, National Fishery Products Quality Management Service, 216 Gijanghaean-ro, Busan 46083, Republic of Korea
| | - Mun-Gyeong Kwon
- Aquatic Disease Control Division, National Fishery Products Quality Management Service, 216 Gijanghaean-ro, Busan 46083, Republic of Korea
| | - Do-Hyung Kim
- Department of Aquatic Life Medicine, College of Fisheries Sciences, Pukyong National University, Busan 48513, Republic of Korea
| | - Chan-Il Park
- Department of Marine Biology & Aquaculture, Institute of Marine Industry, College of Marine Science, Gyeongsang National University, 2 Tongyeonghaean-ro, Tongyeong 53064, Republic of Korea
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Kang G, Woo WS, Kim KH, Son HJ, Sohn MY, Kong HJ, Kim YO, Kim DG, Kim EM, Noh ES, Park CI. Identification of Potential Hazards Associated with South Korean Prawns and Monitoring Results Targeting Fishing Bait. Pathogens 2023; 12:1228. [PMID: 37887744 PMCID: PMC10610149 DOI: 10.3390/pathogens12101228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/03/2023] [Accepted: 10/09/2023] [Indexed: 10/28/2023] Open
Abstract
This study detected two potential pathogens, Vibro parahaemolyticus, which causes acute hepatopancreatic necrosis disease (AHPND), and white spot syndrome virus (WSSV), in fishing bait in South Korea. However, their infectious nature was not confirmed, possibly due to the degradation caused by freezing/thawing or prolonged storage under frozen conditions. While infectivity was not confirmed in this study, there is still a significant risk of exposure to these aquatic products. Furthermore, fishing bait and feed should be handled with caution as they are directly exposed to water, increasing the risk of disease transmission. In Australia, cases of WSSV infection caused by imported shrimp intended for human consumption have occurred, highlighting the need for preventive measures. While freezing/thawing is a method for inactivating pathogens, there are still regulatory and realistic issues to be addressed.
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Affiliation(s)
- Gyoungsik Kang
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Republic of Korea; (G.K.)
| | - Won-Sik Woo
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Republic of Korea; (G.K.)
| | - Kyung-Ho Kim
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Republic of Korea; (G.K.)
| | - Ha-Jeong Son
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Republic of Korea; (G.K.)
| | - Min-Young Sohn
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Republic of Korea; (G.K.)
| | - Hee Jeong Kong
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Young-Ok Kim
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Dong-Gyun Kim
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Eun Mi Kim
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Eun Soo Noh
- Biotechnology Research Division, National Institute of Fisheries Science, Busan 46083, Republic of Korea
| | - Chan-Il Park
- Department of Marine Biology and Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Republic of Korea; (G.K.)
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Lee YJ, Kim EA, Kang N, Park A, Heo SJ. Antioxidant Effects of Turbo cornutus By-Products Visceral Extract against Hydrogen Peroxide-Induced Oxidative Stress by Regulating MAPK and Akt Signaling Pathways in Vero Cells. Foods 2023; 12:3660. [PMID: 37835313 PMCID: PMC10572179 DOI: 10.3390/foods12193660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 09/30/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023] Open
Abstract
Turbo cornutus, a marine gastropod mollusk commonly called sea snail, is found along the southern coast of Korea and holds considerable importance as a marine food resource, particularly on Jeju Island, Korea. Data are scarce on the antioxidant activity of hot water extracts from T. cornutus visceral tissue. Therefore, this study was performed to evaluate the antioxidant activities of T. cornutus visceral tissue hot water extract (TVE) and the underlying mechanisms against hydrogen peroxide-induced oxidative stress in Vero cells. The amino acid composition and antioxidant effects of TVE were evaluated. Furthermore, the impact of TVE on the expression of proteins within the mitogen-activated protein kinase (MAPK) pathway is investigated. TVE showed a concentration-dependent enhancement in its scavenging activities against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals (IC50 = 1.07 ± 0.06 mg/mL) and hydrogen peroxide (IC50 = 0.33 ± 0.03 mg/mL). TVE reduced intracellular reactive oxygen species (ROS) production and maintained cell viability under H2O2-induced oxidative stress by suppressing apoptosis in Vero cells. Additionally, TVE demonstrated regulatory effects on the MAPK and protein kinase B (Akt) signaling pathways activated by H2O2. In conclusion, the findings from our study propose that TVE holds potential as a bioactive component in the formulation of functional foods.
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Affiliation(s)
- Yeon-Ji Lee
- Jeju Bio Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of Korea; (Y.-J.L.); (E.-A.K.); (N.K.); (A.P.)
| | - Eun-A Kim
- Jeju Bio Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of Korea; (Y.-J.L.); (E.-A.K.); (N.K.); (A.P.)
| | - Nalae Kang
- Jeju Bio Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of Korea; (Y.-J.L.); (E.-A.K.); (N.K.); (A.P.)
| | - Areumi Park
- Jeju Bio Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of Korea; (Y.-J.L.); (E.-A.K.); (N.K.); (A.P.)
| | - Soo-Jin Heo
- Jeju Bio Research Center, Korea Institute of Ocean Science and Technology (KIOST), Jeju 63349, Republic of Korea; (Y.-J.L.); (E.-A.K.); (N.K.); (A.P.)
- Department of Marine Technology & Convergence Engineering (Marine Biotechnology), University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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Chung H, Kim J, Lee YJ, Choi KR, Jeong KJ, Kim GJ, Lee SY. Enhanced production of difficult-to-express proteins through knocking down rnpA gene expression. Biotechnol J 2023; 18:e2200641. [PMID: 37285237 DOI: 10.1002/biot.202200641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 05/21/2023] [Accepted: 06/02/2023] [Indexed: 06/09/2023]
Abstract
Escherichia coli has been employed as a workhorse for the efficient production of recombinant proteins. However, some proteins were found to be difficult to produce in E. coli. The stability of mRNA has been considered as one of the important factors affecting recombinant protein production. Here we report a generally applicable and simple strategy for enhancing mRNA stability, and consequently improving recombinant protein production in E. coli. RNase P, a ribozyme comprising an RNA subunit (RnpB) and a protein subunit (RnpA), is involved in tRNA maturation. Based on the finding that purified RnpA can digest rRNA and mRNA in vitro, it was reasoned that knocking down the level of RnpA might enhance recombinant protein production. For this, the synthetic small regulatory RNA-based knockdown system was applied to reduce the expression level of RnpA. The developed RnpA knockdown system allowed successful overexpression of 23 different recombinant proteins of various origins and sizes, including Cas9 protein, antibody fragment, and spider silk protein. Notably, a 284.9-kDa ultra-high molecular weight, highly repetitive glycine-rich spider silk protein, which is one of the most difficult proteins to produce, could be produced to 1.38 g L-1 , about two-fold higher than the highest value previously achieved, by a fed-batch culture of recombinant E. coli strain employing the RnpA knockdown system. The RnpA-knockdown strategy reported here will be generally useful for the production of recombinant proteins including those that have been difficult to produce.
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Affiliation(s)
- Hannah Chung
- Metabolic and Biomolecular Engineering National Research Laboratory, Department of Chemical and Biomolecular Engineering (BK21 four), Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
- MedicosBiotech Inc, Daejeon, Republic of Korea
| | - Jiyong Kim
- Metabolic and Biomolecular Engineering National Research Laboratory, Department of Chemical and Biomolecular Engineering (BK21 four), Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
- MedicosBiotech Inc, Daejeon, Republic of Korea
| | - Yong Jae Lee
- Protein Engineering Laboratory, Department of Chemical and Biomolecular Engineering (BK21 four), Institute for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Kyeong Rok Choi
- Metabolic and Biomolecular Engineering National Research Laboratory, Department of Chemical and Biomolecular Engineering (BK21 four), Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Ki Jun Jeong
- Protein Engineering Laboratory, Department of Chemical and Biomolecular Engineering (BK21 four), Institute for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Geun-Joong Kim
- Department of Biological Sciences, College of Natural Sciences, Chonnam National University, Gwangju, Republic of Korea
| | - Sang Yup Lee
- Metabolic and Biomolecular Engineering National Research Laboratory, Department of Chemical and Biomolecular Engineering (BK21 four), Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
- MedicosBiotech Inc, Daejeon, Republic of Korea
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Durai P, Lee SJ, Lee JW, Pan CH, Park K. Iterative machine learning-based chemical similarity search to identify novel chemical inhibitors. J Cheminform 2023; 15:86. [PMID: 37742003 PMCID: PMC10517535 DOI: 10.1186/s13321-023-00760-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/12/2023] [Indexed: 09/25/2023] Open
Abstract
Machine learning-based chemical screening has made substantial progress in recent years. However, these predictions often have low accuracy and high uncertainty when identifying new active chemical scaffolds. Hence, a high proportion of retrieved compounds are not structurally novel. In this study, we proposed a strategy to address this issue by iteratively optimizing an evolutionary chemical binding similarity (ECBS) model using experimental validation data. Various data update and model retraining schemes were tested to efficiently incorporate new experimental data into ECBS models, resulting in a fine-tuned ECBS model with improved accuracy and coverage. To demonstrate the effectiveness of our approach, we identified the novel hit molecules for the mitogen-activated protein kinase kinase 1 (MEK1). These molecules showed sub-micromolar affinity (Kd 0.1-5.3 μM) to MEKs and were distinct from previously-known MEK1 inhibitors. We also determined the binding specificity of different MEK isoforms and proposed potential docking models. Furthermore, using de novo drug design tools, we utilized one of the new MEK inhibitors to generate additional drug-like molecules with improved binding scores. This resulted in the identification of several potential MEK1 inhibitors with better binding affinity scores. Our results demonstrated the potential of this approach for identifying novel hit molecules and optimizing their binding affinities.
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Affiliation(s)
- Prasannavenkatesh Durai
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung, 25451, Republic of Korea
| | - Sue Jung Lee
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung, 25451, Republic of Korea
| | - Jae Wook Lee
- Natural Product Research Center, Korea Institute of Science and Technology, Gangneung, 25451, Republic of Korea
| | - Cheol-Ho Pan
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung, 25451, Republic of Korea
| | - Keunwan Park
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung, 25451, Republic of Korea.
- Department of YM-KIST Bio-Health Convergence, Yonsei University, Wonju, 26493, Republic of Korea.
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Van Anh C, Kang JS, Yang JW, Kwon JH, Heo CS, Lee HS, Shin HJ. Rifamycin-Related Polyketides from a Marine-Derived Bacterium Salinispora arenicola and Their Cytotoxic Activity. Mar Drugs 2023; 21:494. [PMID: 37755107 PMCID: PMC10532523 DOI: 10.3390/md21090494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/28/2023] Open
Abstract
Eight rifamycin-related polyketides were isolated from the culture broth of a marine-derived bacterium Salinispora arenicola, including five known (2-5 and 8) and three new derivatives (1, 6, and 7). The structures of the new compounds were determined by means of spectroscopic methods (HRESIMS and 1D, 2D NMR) and a comparison of their experimental data with those previously reported in the literature. The isolated compounds were evaluated for their cytotoxicity against one normal, six solid, and seven blood cancer cell lines and 1 showed moderate activity against all the tested cell lines with GI50 values ranging from 2.36 to 9.96 µM.
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Affiliation(s)
- Cao Van Anh
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (C.V.A.); (C.-S.H.); (H.-S.L.)
| | - Jong Soon Kang
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanjiro, Cheongju 28116, Republic of Korea; (J.S.K.); (J.-W.Y.); (J.-H.K.)
| | - Jeong-Wook Yang
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanjiro, Cheongju 28116, Republic of Korea; (J.S.K.); (J.-W.Y.); (J.-H.K.)
| | - Joo-Hee Kwon
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanjiro, Cheongju 28116, Republic of Korea; (J.S.K.); (J.-W.Y.); (J.-H.K.)
| | - Chang-Su Heo
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (C.V.A.); (C.-S.H.); (H.-S.L.)
- Department of Marine Biotechnology, University of Science and Technology (UST), 217 Gajungro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Hwa-Sun Lee
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (C.V.A.); (C.-S.H.); (H.-S.L.)
| | - Hee Jae Shin
- Marine Natural Products Chemistry Laboratory, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Republic of Korea; (C.V.A.); (C.-S.H.); (H.-S.L.)
- Department of Marine Biotechnology, University of Science and Technology (UST), 217 Gajungro, Yuseong-gu, Daejeon 34113, Republic of Korea
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Kim TY, Kim JM, Lee HL, Go MJ, Joo SG, Kim JH, Lee HS, Jeong WM, Lee DY, Kim HJ, Heo HJ. Codium fragile Suppressed Chronic PM 2.5-Exposed Pulmonary Dysfunction via TLR/TGF-β Pathway in BALB/c Mice. Antioxidants (Basel) 2023; 12:1743. [PMID: 37760047 PMCID: PMC10525573 DOI: 10.3390/antiox12091743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/04/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
This study investigated the ameliorating effect of the aqueous extract of Codium fragile on PM2.5-induced pulmonary dysfunction. The major compounds of Codium fragile were identified as palmitic acid, stearic acid, and oleamide using GC/MS2 and hexadecanamide, oleamide, and 13-docosenamide using UPLC-Q-TOF/MSE. Codium fragile improved pulmonary antioxidant system deficit by regulating SOD activities and reducing GSH levels and MDA contents. It suppressed pulmonary mitochondrial dysfunction by regulating ROS contents and mitochondrial membrane potential levels. It regulated the inflammatory protein levels of TLR4, MyD88, p-JNK, p-NF-κB, iNOS, Caspase-1, TNF-α, and IL-1β. In addition, it improved the apoptotic protein expression of BCl-2, BAX, and Caspase-3 and attenuated the fibrous protein expression of TGF-β1, p-Smad-2, p-Smad-3, MMP-1, and MMP-2. In conclusion, this study suggests that Codium fragile might be a potential material for functional food or pharmaceuticals to improve lung damage by regulating oxidative stress inflammation, cytotoxicity, and fibrosis via the TLR/TGF-β1 signaling pathway.
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Affiliation(s)
- Tae Yoon Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeonsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Jong Min Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeonsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Hyo Lim Lee
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeonsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Min Ji Go
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeonsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Seung Gyum Joo
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeonsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Ju Hui Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeonsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Han Su Lee
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeonsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Won Min Jeong
- Research & Development Team, Gyeongnam Anti-Aging Research Institute, Sancheong 52215, Republic of Korea; (W.M.J.); (D.Y.L.)
| | - Dong Yeol Lee
- Research & Development Team, Gyeongnam Anti-Aging Research Institute, Sancheong 52215, Republic of Korea; (W.M.J.); (D.Y.L.)
| | - Hyun-Jin Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeonsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Ho Jin Heo
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeonsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
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Lee HH, Lee S, Lee M, Moon HB. Spatial and temporal trends in polychlorinated naphthalenes in sediment from Ulsan and Onsan Bays of Korea: Potential sources and ecotoxicological concerns. Environ Geochem Health 2023; 45:6793-6806. [PMID: 36151356 DOI: 10.1007/s10653-022-01395-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Few studies have been conducted on spatial and temporal trends in polychlorinated naphthalenes (PCNs) in coastal environments. Here, we describe 18 PCN congeners found in surface and dated sediment samples collected from highly industrialized bays of Korea. Measurable levels of PCN congeners were detected in all sediment samples, suggesting concurrent and historical contamination. The highest PCN concentrations were observed in sediment from rivers, streams, and the inner portions of the bays, which are surrounded by industrial complexes and commercial harbors. CNs 73, 66/67, and 52 were dominant in surface and dated sediment samples. Congener patterns and diagnostic ratios revealed that PCN contamination is originated from combustion processes and the use of polychlorinated biphenyl (PCB) technical mixtures. PCN concentrations in dated sediment increased from the 1980s to the mid-2000s and then decreased to 2015. Although the toxic equivalent (TEQ) levels of PCNs in our study did not exceed sediment quality guidelines proposed by international authorities, the cumulative risks from the TEQ concentrations of polychlorinated dibenzo-p-dioxins, furans, PCBs, and PCNs can be expected for benthic organisms.
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Affiliation(s)
- Ha-Hyun Lee
- Department of Marine Science and Convergent Technology, College of Science and Convergence Technology, Hanyang University, Ansan, 15588, Republic of Korea
| | - Sunggyu Lee
- Marine Environment Research Division, National Institute of Fisheries Science (NIFS), Busan, 46083, Republic of Korea
| | - Moonjin Lee
- Maritime Safety and Environmental Research Division, Korea Research Institute of Ships and Ocean Engineering, Daejeon, 34103, Republic of Korea
| | - Hyo-Bang Moon
- Department of Marine Science and Convergent Technology, College of Science and Convergence Technology, Hanyang University, Ansan, 15588, Republic of Korea.
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Kho KH, Sukhan ZP, Hossen S, Cho Y, Lee WK, Nou IS. Age-Dependent Growth-Related QTL Variations in Pacific Abalone, Haliotis discus hannai. Int J Mol Sci 2023; 24:13388. [PMID: 37686194 PMCID: PMC10488178 DOI: 10.3390/ijms241713388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/09/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
Pacific abalone is a high-value, commercially important marine invertebrate. It shows low growth as well as individual and yearly growth variation in aquaculture. Marker-assisted selection breeding could potentially resolve the problem of low and variable growth and increase genetic gain. Expression of quantitative trait loci (QTLs) for growth-related traits, viz., body weight, shell length, and shell width were analyzed at the first, second, and third year of age using an F1 cross population. A total of 37 chromosome-wide QTLs were identified in linkage groups 01, 02, 03, 04, 06, 07, 08, 10, 11, 12, and 13 at different ages. None of the QTLs detected at any one age were expressed in all three age groups. This result suggests that growth-related traits at different ages are influenced by different QTLs in each year. However, multiple-trait QTLs (where one QTL affects all three traits) were detected each year that are also age-specific. Eleven multiple-trait QTLs were detected at different ages: two QTLs in the first year; two QTLs in the second year; and seven QTLs in the third year. As abalone hatcheries use three-year-old abalone for breeding, QTL-linked markers that were detected at the third year of age could potentially be used in marker-assisted selection breeding programs.
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Affiliation(s)
- Kang Hee Kho
- Department of Fisheries Science, Chonnam National University, Yeosu 59626, Republic of Korea; (Z.P.S.); (S.H.); (Y.C.); (W.-K.L.)
| | - Zahid Parvez Sukhan
- Department of Fisheries Science, Chonnam National University, Yeosu 59626, Republic of Korea; (Z.P.S.); (S.H.); (Y.C.); (W.-K.L.)
| | - Shaharior Hossen
- Department of Fisheries Science, Chonnam National University, Yeosu 59626, Republic of Korea; (Z.P.S.); (S.H.); (Y.C.); (W.-K.L.)
| | - Yusin Cho
- Department of Fisheries Science, Chonnam National University, Yeosu 59626, Republic of Korea; (Z.P.S.); (S.H.); (Y.C.); (W.-K.L.)
| | - Won-Kyo Lee
- Department of Fisheries Science, Chonnam National University, Yeosu 59626, Republic of Korea; (Z.P.S.); (S.H.); (Y.C.); (W.-K.L.)
| | - Ill-Sup Nou
- Department of Horticulture, Sunchon National University, Suncheon 57922, Republic of Korea;
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Kang H, Park CH, Kwon SO, Lee SG. ED Formula, a Complex of Ecklonia cava and Chrysanthemum indicum, Ameliorates Airway Inflammation in Lipopolysaccharide-Stimulated RAW Macrophages and Ovalbumin-Induced Asthma Mouse Model. Pharmaceuticals (Basel) 2023; 16:1185. [PMID: 37631100 PMCID: PMC10458152 DOI: 10.3390/ph16081185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/02/2023] [Accepted: 08/18/2023] [Indexed: 08/27/2023] Open
Abstract
Ecklonia cava (E. cava) and Chrysanthemum indicum Linne (C. indicum) are natural raw materials known to have beneficial effects on inflammatory-related diseases, as evidenced by various sources in the literature. This study aimed to investigate the airway-protective effects of a formulation called ED, comprising E. cava and C. indicum, by evaluating its potential anti-inflammatory properties. Methods: The major components of ED were analyzed using high-performance liquid chromatography (HPLC) and its anti-inflammatory activity was assessed in RAW 264.7 cells through measurements of nitric oxide's (NO) inhibitory effect, cyclooxygenase (COX)-2 protein expression, and the mitogen-activated protein kinase (MAPK) signaling pathway. Additionally, the anti-inflammatory effect of ED was evaluated in an ovalbumin-induced asthma model by measuring cytokine levels in serum, bronchoalveolar lavage fluid (BALF), and lung tissue. Through HPLC analysis, the major components of ED, dieckol and luteolin, were identified. ED demonstrated no cytotoxicity and effectively reduced NO production in lipopolysaccharide (LPS)-induced RAW 264.7 cells. Moreover, ED downregulated COX-2 expression through the MAPK signaling pathway in LPS-induced RAW 264.7 cells. In the ovalbumin-induced asthma model, the ED-treated group exhibited reduced levels of inflammatory cytokines in lung tissue. Furthermore, the ED-treated group showed a decrease in the number of inflammatory cells in BALF and lower serum interleukin (IL)-6 levels compared to the ovalbumin-treated group. These results suggest that ED has the potential to be a novel therapeutic agent for improving inflammatory respiratory diseases.
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Affiliation(s)
- Hyun Kang
- Department of Medical Laboratory Science, College of Health Science, Dankook University, Cheonan-si 31116, Chungnam, Republic of Korea; (H.K.); (C.-H.P.)
| | - Chan-Hwi Park
- Department of Medical Laboratory Science, College of Health Science, Dankook University, Cheonan-si 31116, Chungnam, Republic of Korea; (H.K.); (C.-H.P.)
| | - Sang-Oh Kwon
- S&D Co., Ltd., 473, Mansu-ri, Osong-eup, Heungdeok-gu, Cheongju-si 28156, Chungcheongbuk-do, Republic of Korea;
| | - Sung-Gyu Lee
- Department of Medical Laboratory Science, College of Health Science, Dankook University, Cheonan-si 31116, Chungnam, Republic of Korea; (H.K.); (C.-H.P.)
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Kim TY, Kim JM, Lee HL, Go MJ, Joo SG, Kim JH, Lee HS, Lee DY, Kim HJ, Heo HJ. Codium fragile Suppresses PM 2.5-Induced Cognitive Dysfunction by Regulating Gut-Brain Axis via TLR-4/MyD88 Pathway. Int J Mol Sci 2023; 24:12898. [PMID: 37629080 PMCID: PMC10454605 DOI: 10.3390/ijms241612898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
This study was conducted to evaluate the cognitive dysfunction improvement effect of aqueous extract of Codium fragile (AECF) by regulating the imbalance of the gut-brain axis in chronic particulate matter (PM)2.5-exposed mice. The physiological compounds of AECF were identified as hexadecanamide, oleamide, octadecanamide, stearidonic acid, and linolenic acid by the ultra-performance liquid chromatography-quadrupole time of flight mass spectrometry (UPLC Q-TOF MSE) analysis. To evaluate the effect of PM2.5 on the antioxidant system, superoxide dismutase (SOD) contents, reduced glutathione (GSH) contents, and malondialdehyde (MDA) contents were measured in colon and brain tissues. AECF significantly ameliorated the imbalance of the antioxidant systems. Also, AECF improved intestinal myeloperoxidase (MPO) activity, the abundance of the gut microbiome, short-chain fatty acids (SCFAs) contents, and tight junction protein expression against PM2.5-induced damage. In addition, AECF prevented PM2.5-induced inflammatory and apoptotic expression via the toll-like receptor-4 (TLR-4)/myeloid differentiation primary response 88 (MyD88) pathway in colon and brain tissues. Additionally, AECF enhanced the mitochondrial function, including the mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) contents in brain tissues. Furthermore, AECF regulated the cholinergic system, such as acetylcholine (ACh) contents, acetylcholinesterase (AChE) activity, and protein expression levels of AChE and choline acetyltransferase (ChAT) in brain tissues. To evaluate the effect of cognitive dysfunction caused by PM2.5-induced intestinal dysfunction, behavior tests such as Y-maze, passive avoidance, and Morris water maze tests were performed. From the results of the behavior tests, AECF ameliorated spatial learning and memory, short-term memory, and long-term learning and memory function. This study confirmed that AECF reduced PM2.5-induced cognitive dysfunction by regulating gut microbiome and inflammation, apoptosis, and mitochondrial function by enhancing the gut-brain axis. Based on these results, this study suggests that AECF, which contains fatty acid amides, might be a potential material for ameliorating PM2.5-induced cognitive dysfunction via gut-brain axis improvement.
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Affiliation(s)
- Tae Yoon Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Jong Min Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Hyo Lim Lee
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Min Ji Go
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Seung Gyum Joo
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Ju Hui Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Han Su Lee
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Dong Yeol Lee
- Research & Development Team, Gyeongnam Anti-Aging Research Institute, Sancheong 52215, Republic of Korea;
| | - Hyun-Jin Kim
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
| | - Ho Jin Heo
- Division of Applied Life Science (BK21), Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea; (T.Y.K.); (J.M.K.); (H.L.L.); (M.J.G.); (S.G.J.); (J.H.K.); (H.S.L.); (H.-J.K.)
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Avazov K, Jamil MK, Muminov B, Abdusalomov AB, Cho YI. Fire Detection and Notification Method in Ship Areas Using Deep Learning and Computer Vision Approaches. Sensors (Basel) 2023; 23:7078. [PMID: 37631614 PMCID: PMC10458310 DOI: 10.3390/s23167078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/02/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023]
Abstract
Fire incidents occurring onboard ships cause significant consequences that result in substantial effects. Fires on ships can have extensive and severe wide-ranging impacts on matters such as the safety of the crew, cargo, the environment, finances, reputation, etc. Therefore, timely detection of fires is essential for quick responses and powerful mitigation. The study in this research paper presents a fire detection technique based on YOLOv7 (You Only Look Once version 7), incorporating improved deep learning algorithms. The YOLOv7 architecture, with an improved E-ELAN (extended efficient layer aggregation network) as its backbone, serves as the basis of our fire detection system. Its enhanced feature fusion technique makes it superior to all its predecessors. To train the model, we collected 4622 images of various ship scenarios and performed data augmentation techniques such as rotation, horizontal and vertical flips, and scaling. Our model, through rigorous evaluation, showcases enhanced capabilities of fire recognition to improve maritime safety. The proposed strategy successfully achieves an accuracy of 93% in detecting fires to minimize catastrophic incidents. Objects having visual similarities to fire may lead to false prediction and detection by the model, but this can be controlled by expanding the dataset. However, our model can be utilized as a real-time fire detector in challenging environments and for small-object detection. Advancements in deep learning models hold the potential to enhance safety measures, and our proposed model in this paper exhibits this potential. Experimental results proved that the proposed method can be used successfully for the protection of ships and in monitoring fires in ship port areas. Finally, we compared the performance of our method with those of recently reported fire-detection approaches employing widely used performance matrices to test the fire classification results achieved.
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Affiliation(s)
- Kuldoshbay Avazov
- Department of Computer Engineering, Gachon University, Seongnam-si 461-701, Republic of Korea; (K.A.)
| | - Muhammad Kafeel Jamil
- Department of Computer Engineering, Gachon University, Seongnam-si 461-701, Republic of Korea; (K.A.)
| | - Bahodir Muminov
- Department of Artificial Intelligence, Tashkent State University of Economics, Tashkent 100066, Uzbekistan
| | | | - Young-Im Cho
- Department of Computer Engineering, Gachon University, Seongnam-si 461-701, Republic of Korea; (K.A.)
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Weon SH, Han J, Choi YK, Park S, Lee SH. Development of Blended Biopolymer-Based Photocatalytic Hydrogel Beads for Adsorption and Photodegradation of Dyes. Gels 2023; 9:630. [PMID: 37623085 PMCID: PMC10454056 DOI: 10.3390/gels9080630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 07/28/2023] [Accepted: 08/04/2023] [Indexed: 08/26/2023] Open
Abstract
Blended biopolymer-based photocatalytic hydrogel beads were synthesized by dissolving the biopolymers in 1-ethyl-3-methylimidazolium acetate ([Emim][Ac]), adding TiO2, and reconstituting the beads with ethanol. The incorporation of modifying biopolymer significantly enhanced the adsorption capacity of the cellulose/TiO2 beads. Cellulose/carrageenan/TiO2 beads exhibited a 7.0-fold increase in adsorption capacity for methylene blue (MB). In contrast, cellulose/chitosan/TiO2 beads showed a 4.8-fold increase in adsorption capacity for methyl orange (MO) compared with cellulose/TiO2 beads. In addition, cellulose/TiO2 microbeads were prepared through the sol-gel transition of the [Emim][Ac]-in-oil emulsion to enhance photodegradation activity. These microbeads displayed a 4.6-fold higher adsorption capacity and 2.8-fold higher photodegradation activity for MB than the millimeter-sized beads. Furthermore, they exhibited superior dye removal efficiencies for various dyes such as Congo red, MO, MB, crystal violet, and rhodamine B, surpassing the performance of larger beads. To expand the industrial applicability of the microbeads, biopolymer/TiO2 magnetic microbeads were developed by incorporating Fe2O3. These magnetic microbeads outperformed millimeter-sized beads regarding the efficiency and time required for MB removal from aqueous solutions. Furthermore, the physicochemical properties of magnetic microbeads can be easily controlled by adjusting the type of biopolymer modifier, the TiO2 and magnetic particle content, and the ratio of each component based on the target molecule. Therefore, biopolymer-based photocatalytic magnetic microbeads have great potential not only in environmental fields but also in biomedical fields.
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Affiliation(s)
- Seung Hyeon Weon
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea; (S.H.W.); (J.H.); (Y.-K.C.)
| | - Jiwoo Han
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea; (S.H.W.); (J.H.); (Y.-K.C.)
| | - Yong-Keun Choi
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea; (S.H.W.); (J.H.); (Y.-K.C.)
- R&D Center, ChoiLab Inc., Seoul 01811, Republic of Korea
| | - Saerom Park
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea; (S.H.W.); (J.H.); (Y.-K.C.)
- R&D Center, ChoiLab Inc., Seoul 01811, Republic of Korea
| | - Sang Hyun Lee
- Department of Biological Engineering, Konkuk University, Seoul 05029, Republic of Korea; (S.H.W.); (J.H.); (Y.-K.C.)
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Ulagesan S, Krishnan S, Nam TJ, Choi YH. The Influence of κ-Carrageenan-R-Phycoerythrin Hydrogel on In Vitro Wound Healing and Biological Function. Int J Mol Sci 2023; 24:12358. [PMID: 37569731 PMCID: PMC10419105 DOI: 10.3390/ijms241512358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/29/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Wound healing is widely recognized as a critical issue impacting the healthcare sector in numerous countries. The application of wound dressings multiple times in such instances can result in tissue damage, thereby increasing the complexity of wound healing. With the aim of tackling this necessity, in the present study, we have formulated a hydrogel using natural polysaccharide κ-carrageenan and phycobiliprotein R-phycoerythrin from Pyropia yezoensis. The formulated hydrogel κ-Carrageenan-R-Phycoerythrin (κ-CRG-R-PE) was analyzed for its antioxidant and antimicrobial activity. The wound healing potential of the κ-CRG-R-PE was evaluated in Hs27 cells by the wound scratch assay method. The hydrogel showed dose-dependent antioxidant activity and significant antimicrobial activity at 100 μg/mL concentration. κ-CRG-R-PE hydrogels promoted more rapid and complete wound closure than κ-Carrageenan (κ-CRG) hydrogel at 24 and 48 h. κ-CRG-R-PE hydrogels also filled the wound within 48 h of incubation, indicating that they positively affect fibroblast migration and wound healing.
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Affiliation(s)
- Selvakumari Ulagesan
- Division of Fisheries Life Sciences, Pukyong National University, Nam-gu, Busan 48513, Republic of Korea;
| | - Sathish Krishnan
- Institute of Fisheries Sciences, Pukyong National University, Gijang-gun, Busan 46041, Republic of Korea; (S.K.); (T.-J.N.)
| | - Taek-Jeong Nam
- Institute of Fisheries Sciences, Pukyong National University, Gijang-gun, Busan 46041, Republic of Korea; (S.K.); (T.-J.N.)
| | - Youn-Hee Choi
- Division of Fisheries Life Sciences, Pukyong National University, Nam-gu, Busan 48513, Republic of Korea;
- Institute of Fisheries Sciences, Pukyong National University, Gijang-gun, Busan 46041, Republic of Korea; (S.K.); (T.-J.N.)
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50
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Woo WS, Kang G, Kim KH, Son HJ, Sohn MY, Park CI. Correlation of endemicity between monogenean trematode, Microcotyle sebastis, and parasitic copepods in Korean rockfish, Sebastes schlegelii, from a fish farm in Tongyeong-si, Gyeongsangnam-do, Korea. Parasites Hosts Dis 2023; 61:332-337. [PMID: 37648240 PMCID: PMC10471468 DOI: 10.3347/phd.23019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 07/02/2023] [Indexed: 09/01/2023]
Abstract
Infestations of parasites, particularly those caused by copepods and monogeneans, are a major hindrance to aquaculture and have a big negative economic impact. Sebastes schlegelii, a farmed Korean rockfish, is particularly prone to copepods and monogeneans. This study comprehended how parasitic copepods and rockfish from a farm in Tongyeong-si, Gyeongsangnam-do, Korea, are related to the monogenean trematode Microcotyle sebastis. Our research revealed that monogeneans predominated, with a rate of 98.4% and an average infection intensity of 7 per infected fish. With an average infection intensity of 4 per sick fish, the infection rate for parasitic copepods was equally considerable, coming in at 91.7%. The high co-infection rate of both parasite families, at 90.8%, is noteworthy. Furthermore, Lepeophtheirus elegans and Peniculus truncatus, 2 parasitic copepod species, were discovered to have M. sebastis eggs attached to their bodies. This demonstrates a connection between parasitic copepod infestations in farmed Korean rockfish and the monogenean trematode M. sebastis. These discoveries highlight the necessity for creating more potent parasite control methods for the aquaculture sector and shed light on the intricate relationships between various parasite species.
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Affiliation(s)
- Won-Sik Woo
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 37243,
Korea
| | - Gyoungsik Kang
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 37243,
Korea
| | - Kyung-Ho Kim
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 37243,
Korea
| | - Ha-Jeong Son
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 37243,
Korea
| | - Min-Young Sohn
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 37243,
Korea
| | - Chan-Il Park
- Department of Marine Biology & Aquaculture, College of Marine Science, Gyeongsang National University, Tongyeong 37243,
Korea
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