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Jung YH, Woo SJ, Joo K, Kim MS. ADDITIONAL PNEUMATIC RETINOPEXY IN PATIENTS WITH PERSISTENT RETINAL DETACHMENT AFTER SCLERAL BUCKLING. Retina 2024; 44:799-809. [PMID: 38261829 DOI: 10.1097/iae.0000000000004055] [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] [Indexed: 01/25/2024]
Abstract
PURPOSE To investigate the efficacy, safety, and indications for additional pneumatic retinopexy (PR) in patients with persistent retinal detachment after scleral buckling. METHODS This retrospective study included patients who underwent additional PR after scleral buckling for primary rhegmatogenous retinal detachment (n = 78). We defined "inadequate buckle" as retinal detachment persistence because of low buckle height despite accurate buckle placement and "buckle misplacement" as an uncovered tear because of incorrect buckle placement. RESULTS The anatomical success rate after additional PR was 52.6%. Development of proliferative vitreoretinopathy Grade B (hazard ratio, 5.73; P < 0.001) and inferior retinal tears (hazard ratio, 2.12; P = 0.040) were significant risk factors for anatomical failure. The most common cause of anatomical failure was proliferative vitreoretinopathy (19 of 37; 51.4%), and epiretinal membrane formation was a common complication after additional PR (22 of 78; 28.2%). The anatomical success rate with additional PR was significantly higher in the inadequate buckle group than in the misplacement group (8 of 9 [88.9%] vs. 1228 [42.9%]; P = 0.023). CONCLUSION Development of proliferative vitreoretinopathy Grade B and inferior retinal tears were significantly associated with anatomical failure after additional PR. Additional PR may benefit patients with superior retinal tears or low buckle height and those without proliferative vitreoretinopathy.
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Affiliation(s)
- Young Hoon Jung
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
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Lee M, Chae SA, Lee YJ, Jeon HJ, Hong SC, Shin M, Jung YH, Yang J. Cell-free supernatant of Lactococcus lactis IDCC 2301 exerts anti-inflammatory effects in LPS-induced macrophages via NF-κB and MAPK signaling pathways. Benef Microbes 2024:1-11. [PMID: 38677715 DOI: 10.1163/18762891-bja00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/27/2024] [Indexed: 04/29/2024]
Abstract
This study investigated the anti-inflammatory effects of cell-free supernatant of Lactococcus lactis IDCC 2301 on lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. Expression of inflammatory mediators and cytokines, and the production of nitric oxide (NO) and prostaglandin E2 (PGE2) were qualitatively analysed. The expression of signal transductors in inflammatory cascades was quantified by western blot. Treatment with cell-free supernatant of L. lactis IDCC 2301 significantly decreased the mRNA expression levels of tumour necrosis factor (TNF-α) and interleukins including IL-1β and IL-6. The levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX-2) were also remarkably reduced in LPS-induced macrophages after the treatment. Furthermore, L. lactis IDCC 2301 reduced the levels of both dephosphorylated and phosphorylated forms of nuclear factor-kappa B (NF-κB), IκB-α, extracellular signal-regulated kinases (ERK), c-Jun amino-terminal kinases (JNK), and p38 in LPS-induced RAW 264.7 cells. Therefore, L. lactis IDCC 2301 shows anti-inflammatory activity by suppressing the NF-κB and mitogen-activated protein kinase (MAPK) signaling pathways.
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Affiliation(s)
- M Lee
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do 17957, Republic of Korea
| | - S A Chae
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do 17957, Republic of Korea
| | - Y J Lee
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - H J Jeon
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - S-C Hong
- Department of Food Science and Biotechnology, Kunsan National University, Gunsan 54150, Republic of Korea
| | - M Shin
- Department of Microbiology, College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Y H Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - J Yang
- Department of Microbiology, College of Medicine, Dongguk University, Gyeongju, 38066, Republic of Korea
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Hong SC, Hong CR, Kim M, Kang YJ, Jung YH, Park KM, Choi J, Chang PS. Process optimization for microfluidic preparation of liposomes using food-grade components. Food Chem 2024; 451:139437. [PMID: 38678653 DOI: 10.1016/j.foodchem.2024.139437] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/18/2024] [Accepted: 04/20/2024] [Indexed: 05/01/2024]
Abstract
This study explores the potential for optimizing a sustainable manufacturing process that maintains the essential characteristics of conventional liposomes using food-grade solvents and components. The focus was comparing the physicochemical, morphological, and interfacial properties of liposomes produced with these food-grade ingredients to those made by conventional methods. It was found that there was no significant difference in particle size (195.87 ± 1.40 nm) and ζ-potential (-45.13 ± 0.65 mV) between liposomes made from food-grade and conventional materials. The manufacturing process for liposomes, utilizing food-grade solvents and components, was optimized through the application of Plackett-Burman design and response surface methodology. This approach helped identify key parameters (soy lecithin, β-sitosterol, W/O ratio) and their optimal values (3.17 g, 0.25 g, 1:2.59). These findings suggest that it is possible to enhance the use of liposomes as an effective and safe delivery system in the food industry, adhering to the strict guidelines set by regulatory agencies.
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Affiliation(s)
- Sung-Chul Hong
- Department of Food Science and Biotechnology, Kunsan National University, Gunsan 54150, Republic of Korea
| | - Chi Rac Hong
- Department of Food Science and Technology, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Minsoo Kim
- Division of Fundamental Research on Public Agenda, Research Team for Transmission Dynamics of Infectious Diseases, National Institute for Mathematical Sciences, Daejeon 34047, Republic of Korea
| | - Yue Jai Kang
- Department of Aquatic Life Medicine, Kunsan National University, Gunsan 54150, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Kyung-Min Park
- Department of Food Science and Biotechnology, Wonkwang University, Iksan 54538, Republic of Korea
| | - Jaeyoung Choi
- Department of Oriental Medicine Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea.
| | - Pahn-Shick Chang
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea; Center for Food and Bioconvergence, Seoul National University, Seoul 08826, Republic of Korea; Center for Agricultural Microorganism and Enzyme, Seoul National University, Seoul 08826, Republic of Korea; Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea.
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Istianah N, Kang HJ, Yuwono SS, Suhartini S, Jung YH. Fed-batch treatment attenuates diffusional limitation while preparing high solid microfibrillated cellulose from Gelidium amansii. Bioresour Technol 2024; 397:130471. [PMID: 38382723 DOI: 10.1016/j.biortech.2024.130471] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/30/2024] [Accepted: 02/18/2024] [Indexed: 02/23/2024]
Abstract
This study investigates the effects of fed-batch treatment on the fibrillation degree and properties of Gelidium amansii-derived microfibrillated cellulose (MFC). Fed-batch milling was conducted with the initial solid loading of 1 % w/v followed by three stages of feeding to obtain a final solid concentration of 5 % w/v. This process provides a high-solid MFC of around 10 %, while batch milling only provides the maximum solid loading of 4 %. It also reduces approximately 83 % power consumption of batch milling at the same solid loading (4 %). The obtained MFC 5 % has lower fibrils length (14.9 µm) and width (16.46 nm), but higher consistency index (>250 Pa.s) than MFC 1 % (22 µm, 21 nm, 5.88 Pa.s). The crystallinity and maximum decomposition temperatures of both MFCs are comparable, varying at 49-53 % and 318 °C-320 °C. In summary, fed-batch treatment is promising for the techno-economic development of MFC production by lowering energy and maintaining product quality.
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Affiliation(s)
- Nur Istianah
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; Department of Food Science and Biotechnology, Universitas Brawijaya, Malang 65145, Indonesia.
| | - Hye Jee Kang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Sudarminto Setyo Yuwono
- Department of Food Science and Biotechnology, Universitas Brawijaya, Malang 65145, Indonesia.
| | - Sri Suhartini
- Department of Agro-industrial Technology, Universitas Brawijaya, Malang 65145, Indonesia; Centre of Excellence in Bioenergy and Biorefinery, Faculty of Agricultural Technology, Universitas Brawijaya, Malang 65145, Indonesia.
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea.
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Jung YH, Park KH, Woo SJ, Joo K, Kim MS. Scleral buckling with adjuvant pneumatic retinopexy versus scleral buckling alone for rhegmatogenous retinal detachment. Sci Rep 2024; 14:5249. [PMID: 38438557 PMCID: PMC10912704 DOI: 10.1038/s41598-024-55999-2] [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: 08/12/2023] [Accepted: 02/29/2024] [Indexed: 03/06/2024] Open
Abstract
To compare the efficacy of scleral buckling with adjuvant pneumatic retinopexy (SB with PR) and scleral buckling (SB) alone for primary rhegmatogenous retinal detachment (RRD). This retrospective and comparative study included patients who underwent SB with PR (n = 88) or SB alone (n = 161) for primary RRD. The primary anatomical success rate for SB with PR was 81.8%, whereas that for SB alone was 80.7% (P = 0.836). Among patients who achieved primary anatomical success, those in the SB with PR group showed postoperative epiretinal membrane (ERM) formation more frequently than those in the SB alone group (11 of 72 [15.3%] vs. 6 of 130 [4.6%]) (P = 0.009). The mean time to subretinal fluid absorption was not significantly different between the SB with PR and SB alone groups (11.2 ± 6.2 vs. 11.4 ± 5.8 months, P = 0.881). In the SB with PR group, retinal detachment involving ≥ three quadrants was a significant risk factor for surgical failure (hazard ratio, 3.04; P = 0.041). Adjuvant pneumatic retinopexy does not provide additional benefit in improving the surgical outcomes of SB for primary RRD repair.
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Affiliation(s)
- Young Hoon Jung
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea
| | - Kyu Hyung Park
- Department of Ophthalmology, Seoul National University Hospital, Seoul, South Korea
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul, South Korea
| | - Se Joon Woo
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea
| | - Kwangsic Joo
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea
| | - Min Seok Kim
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea.
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Istianah N, Kang HJ, Lee YJ, Choe D, Jung SK, Hong SC, Jung YH. Enhancing the dispersibility of Gelidium amansii-derived microfibrillated cellulose through centrifugal fractionation. Int J Biol Macromol 2024; 262:129909. [PMID: 38368676 DOI: 10.1016/j.ijbiomac.2024.129909] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/01/2023] [Accepted: 01/31/2024] [Indexed: 02/20/2024]
Abstract
Hydrothermal pretreatment is useful for microfibrillated cellulose (MFC) preparation due to its safety, but the remaining hemicellulose might affect MFC properties. This study aimed to investigate the effect of centrifugation time on hemicellulose removal and the physicochemical properties of MFC obtained after hydrothermal pretreatment and micro-fibrillation. In this study, centrifugation was applied to the MFC suspension at varying duration times. Composition analysis and Fourier transform infrared spectra indicated that fractionated MFC has no hemicellulose content after 10, 20, and 30 min centrifugation. It also showed an approximately 5 times higher than 0.5 % g/g of initial solid concentration, indicated by a lower gel concentration point, than unfractionated MFC. Scanning electron microscope images of the fractionated MFC for 30 min (MFC2C) presented thin, long cellulose fibrils of 517 nm in average diameter and 635-10,000 nm in length that induced a slower sedimentation rate. MFC2C dispersion was also improved by autoclave sterilization by regulating cellulose structure, rheology, and crystallinity. As a result, MFC dispersibility can be enhanced by removing hemicellulose through simple centrifugation.
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Affiliation(s)
- Nur Istianah
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; Department of Food Science and Biotechnology, Universitas Brawijaya, Malang 65145, Indonesia
| | - Hye Jee Kang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Yeon Ju Lee
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Deokyeong Choe
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sung Keun Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sung-Chul Hong
- Department of Food Science and Biotechnology, Kunsan National University, Gunsan 54150, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea.
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Lee HB, Bang WY, Shin GR, Jeon HJ, Jung YH, Yang J. Isolation, Characterization, and Safety Evaluation of the Novel Probiotic Strain Lacticaseibacillus paracasei IDCC 3401 via Genomic and Phenotypic Approaches. Microorganisms 2023; 12:85. [PMID: 38257912 PMCID: PMC10821444 DOI: 10.3390/microorganisms12010085] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/21/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
This study aimed to explore the safety and properties of Lacticaseibacillus paracasei IDCC 3401 as a novel probiotic strain via genomic and phenotypic analyses. In whole-genome sequencing, the genes associated with antibiotic resistance and virulence were not detected in this strain. The minimum inhibitory concentration test revealed that L. paracasei IDCC 3401 was susceptible to all the antibiotics tested, except for kanamycin. Furthermore, the strain did not produce toxigenic compounds, such as biogenic amines and D-lactate, nor did it exhibit significant toxicity in a single-dose acute oral toxicity test in rats. Phenotypic characterization of carbohydrate utilization and enzymatic activities indicated that L. paracasei IDCC 3401 can utilize various nutrients, allowing it to grow in deficient conditions and produce health-promoting metabolites. The presence of L. paracasei IDCC 3401 supernatants significantly inhibited the growth of enteric pathogens (p < 0.05). In addition, the adhesion ability of L. paracasei IDCC 3401 to intestinal epithelial cells was found to be as superior as that of Lacticaseibacillus rhamnosus GG. These results suggest that L. paracasei IDCC 3401 is safe for consumption and provides health benefits to the host.
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Affiliation(s)
- Han Bin Lee
- Ildong Bioscience, Pyeongtaek-si 17957, Republic of Korea; (H.B.L.); (W.Y.B.)
| | - Won Yeong Bang
- Ildong Bioscience, Pyeongtaek-si 17957, Republic of Korea; (H.B.L.); (W.Y.B.)
| | - Gyu Ri Shin
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; (G.R.S.); (H.J.J.)
| | - Hyeon Ji Jeon
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; (G.R.S.); (H.J.J.)
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; (G.R.S.); (H.J.J.)
| | - Jungwoo Yang
- Ildong Bioscience, Pyeongtaek-si 17957, Republic of Korea; (H.B.L.); (W.Y.B.)
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Jeong Y, Oh AR, Jung YH, Gi H, Kim YU, Kim K. Targeting E3 ubiquitin ligases and their adaptors as a therapeutic strategy for metabolic diseases. Exp Mol Med 2023; 55:2097-2104. [PMID: 37779139 PMCID: PMC10618535 DOI: 10.1038/s12276-023-01087-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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/23/2023] [Accepted: 07/06/2023] [Indexed: 10/03/2023] Open
Abstract
Posttranslational modification of proteins via ubiquitination determines their activation, translocation, dysregulation, or degradation. This process targets a large number of cellular proteins, affecting all biological pathways involved in the cell cycle, development, growth, and differentiation. Thus, aberrant regulation of ubiquitination is likely associated with several diseases, including various types of metabolic diseases. Among the ubiquitin enzymes, E3 ubiquitin ligases are regarded as the most influential ubiquitin enzymes due to their ability to selectively bind and recruit target substrates for ubiquitination. Continued research on the regulatory mechanisms of E3 ligases and their adaptors in metabolic diseases will further stimulate the discovery of new targets and accelerate the development of therapeutic options for metabolic diseases. In this review, based on recent discoveries, we summarize new insights into the roles of E3 ubiquitin ligases and their adaptors in the pathogenesis of metabolic diseases by highlighting recent evidence obtained in both human and animal model studies.
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Affiliation(s)
- Yelin Jeong
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Ah-Reum Oh
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Young Hoon Jung
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - HyunJoon Gi
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Young Un Kim
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - KyeongJin Kim
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, Republic of Korea.
- Program in Biomedical Science & Engineering, Inha University, Incheon, Republic of Korea.
- Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea.
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Lee YJ, Kang HJ, Yi SH, Jung YH. Antioxidant Properties of Kombucha Made with Tartary Buckwheat Tea and Burdock Tea. Prev Nutr Food Sci 2023; 28:347-352. [PMID: 37842253 PMCID: PMC10567594 DOI: 10.3746/pnf.2023.28.3.347] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/23/2023] [Accepted: 06/23/2023] [Indexed: 10/17/2023] Open
Abstract
Kombucha is a beverage fermented by SCOBY, which is a symbiotic culture of bacteria and yeast. Recently, kombucha has received significant attention due to its health benefits, which include antioxidant and anti-obesity effects. In this study, we investigated the characteristics of kombucha made with Tartary buckwheat and burdock, both known for their high polyphenols content. First, the total polyphenol content and antioxidant activity were measured by 2,2-diphenyl-1-picrylhydrazyl and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging assays, which revealed a polyphenol content of 180 ug/mL in Tartary buckwheat kombucha and a high radical scavenging ability of over 90% in both kombucha preparations. Analysis of the changes in the organic acid content during fermentation revealed increases in various organic acid contents, such as glucuronic acid, lactic acid, and acetic acid. Glucuronic acid, especially, which has many functional properties in health, was found to be produced at a concentration of 4.03 g/L in Tartary buckwheat kombucha. Pancreatic lipase inhibitory ability analysis revealed inhibitory effects of 40.47% and 57.68% for Tartary buckwheat and burdock kombucha, respectively. The results of this study confirmed the antioxidant and anti-obesity effects of kombucha made from Tartary buckwheat and burdock, indicating the potential value of these ingredients as functional kombucha ingredients.
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Affiliation(s)
- Yeon Ju Lee
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 4566, Korea
| | - Hye Jee Kang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 4566, Korea
| | | | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 4566, Korea
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Jung YH, Kwak JJ, Joo K, Lee HJ, Park KH, Kim MS, Lee EK, Byeon SH, Lee CS, Han J, Lee J, Yoon CK, Woo SJ. Clinical and genetic features of Koreans with retinitis pigmentosa associated with mutations in rhodopsin. Front Genet 2023; 14:1240067. [PMID: 37712069 PMCID: PMC10497939 DOI: 10.3389/fgene.2023.1240067] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/14/2023] [Indexed: 09/16/2023] Open
Abstract
Purpose: To investigate the clinical features, natural course, and genetic characteristics of Koreans with rhodopsin-associated retinitis pigmentosa (RHO-associated RP). Design: We conducted a retrospective, multicenter, observational cohort study. Participants: We reviewed the medical records of 42 patients with RHO-associated RP of 36 families who visited 4 hospitals in Korea. Methods: Patients with molecular confirmation of pathogenic variants of the RHO gene were included. The patients were divided into two subgroups: the generalized and sector RP groups. A central visual field of the better-seeing eye of <10° or a best-corrected visual acuity of the better-seeing eye <20/40 indicated the progression to late-stage RP. Results: The mean age at which symptoms first appeared was 26.3 ± 17.9 years (range: 8-78 years), and the mean follow-up period was 80.9 ± 68.7 months (range: 6-268 months). At the last follow-up visit, the generalized RP group showed a significantly higher rate of visual field impairment progression to late-stage RP than that of the sector RP group (22 of 35 [62.9%] vs. 0 of 7 [0.0%], p = 0.003). No cases in the sector RP group progressed to generalized RP. Best-corrected visual acuity deterioration to late-stage RP was observed only in the generalized RP group (13 of 35 patients; 37.1%), whereas no deterioration was observed in the sector RP group. We identified 16 known and three novel RHO mutations, including two missense mutations (p.T108P and p.G121R) and one deletion mutation (p.P347_A348del). The pathogenic variants were most frequently detected in exon 1 (14 of 36 [38.9%]). The most common pathogenic variants were p.P347L and T17M (5 of 36 [13.9%] families). Among 42 patients of 36 families, 35 patients of 29 families (80.6%) presented with the generalized RP phenotype, and seven patients of seven families (19.4%) presented with the sector RP phenotype. Three variants (p.T17M, p.G101E, and p.E181K) presented with both the generalized and sector RP phenotypes. Conclusion: This multicenter cohort study provided information on the clinical and genetic features of RHO-associated RP in Koreans. It is clinically important to expand the genetic spectrum and understand genotype-phenotype correlations to ultimately facilitate the development of gene therapy.
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Affiliation(s)
- Young Hoon Jung
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Jay Jiyong Kwak
- Institute of Vision Research, Department of Ophthalmology, Severance Eye Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kwangsic Joo
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Hyuk Jun Lee
- Department of Ophthalmology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Kyu Hyung Park
- Department of Ophthalmology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Min Seok Kim
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Eun Kyoung Lee
- Department of Ophthalmology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Suk Ho Byeon
- Institute of Vision Research, Department of Ophthalmology, Severance Eye Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Christopher Seungkyu Lee
- Institute of Vision Research, Department of Ophthalmology, Severance Eye Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jinu Han
- Institute of Vision Research, Department of Ophthalmology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Junwon Lee
- Institute of Vision Research, Department of Ophthalmology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chang Ki Yoon
- Department of Ophthalmology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Se Joon Woo
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
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Hong CR, Lee EH, Jung YH, Lee JH, Paik HD, Hong SC, Choi SJ. Development and Characterization of Inula britannica Extract-Loaded Liposomes: Potential as Anti-Inflammatory Functional Food Ingredients. Antioxidants (Basel) 2023; 12:1636. [PMID: 37627631 PMCID: PMC10451523 DOI: 10.3390/antiox12081636] [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: 05/31/2023] [Revised: 07/04/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
We investigated the potential of Inula britannica extract encapsulated in liposomes as a functional food ingredient with enhanced bioavailability and stability. Inula britannica, known for its anti-inflammatory properties and various health benefits, was encapsulated using a liposome mass production manufacturing method, and the physical properties of liposomes were evaluated. The liposomes exhibited improved anti-inflammatory effects in lipopolysaccharide-activated RAW 264.7 macrophages, suppressing the production of pro-inflammatory mediators such as nitric oxide and prostaglandin E2 and downregulating the expression of iNOS and COX-2 transcription factors. Additionally, we observed reduced production of pro-inflammatory cytokines TNF-α, IL-6, and IL-1β, and modulation of the NF-κB and mitogen-activated protein kinase signaling pathways. These findings suggest that Inula britannica extract encapsulated in liposomes could serve as a valuable functional food ingredient for managing and preventing inflammation-related disorders, making it a promising candidate for incorporation into various functional food products. The enhanced absorption and stability provided by liposomal encapsulation can enable better utilization of the extract's beneficial properties, promoting overall health and well-being.
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Affiliation(s)
- Chi Rac Hong
- Department of Food Science and Technology, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea;
| | - Eun Ha Lee
- Smart Farm Research Center, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea;
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea;
| | - Ju-Hoon Lee
- Department of Food and Animal Biotechnology, Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea;
| | - Hyun-Dong Paik
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Republic of Korea;
| | - Sung-Chul Hong
- Department of Food Science and Biotechnology, Kunsan National University, Gunsan 54150, Republic of Korea
| | - Seung Jun Choi
- Department of Food Science and Technology, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea;
- Center for Functional Biomaterials, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
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Kim J, Kim H, Jeon HJ, Jung YH, Yang J. Lacticaseibacillus Casei IDCC 3451 Strengthen Digestibility of Plant-based Proteins in Mice. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10091-5. [PMID: 37204697 DOI: 10.1007/s12602-023-10091-5] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2023] [Indexed: 05/20/2023]
Abstract
The demand for plant-based proteins as alternative meat sources continues to increase because of environmental concerns, animal welfare, and religious reasons. However, plant-based proteins have low digestibility than real meat, which should be overcome. In the present study, the effect of co-administration of legumin protein mixture and the probiotic strain on plasma concentration of amino acids was investigated as a strategy of enhancement in protein digestion. First, the proteolytic activity of the four probiotic strains was compared. As a result, Lacticaseibacillus casei IDCC 3451 was identified as an optimal probiotic strain that efficiently digested the legumin protein mixture by forming the largest halo produced by proteolysis. Next, to investigate whether the co-administration of legumin protein mixture and L. casei IDCC 3451 could synergically improve digestibility, mice were fed either a high-protein diet or a high-protein diet with L. casei IDCC 3451 for 8 weeks. Compared to only in the high-protein diet only group, the concentrations of branched chain amino acids and essential amino acids were 1.36 and 1.41 times higher in the co-administered group, respectively. Therefore, co-supplementation of plant-based proteins with L. casei IDCC 3451 can be suggested to improve protein digestibility based on the this study.
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Affiliation(s)
- Jungyeon Kim
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Hayoung Kim
- Ildong Bioscience, Pyeongtaek-Si, Gyeonggi-Do, 17957, Republic of Korea
| | - Hyeon Ji Jeon
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Jungwoo Yang
- Ildong Bioscience, Pyeongtaek-Si, Gyeonggi-Do, 17957, Republic of Korea.
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Shin MC, Jung YH, Jeong Y, Oh AR, Lee SB, Kim K. Kctd17-mediated Chop degradation promotes adipogenic differentiation. Biochem Biophys Res Commun 2023; 653:126-132. [PMID: 36868076 DOI: 10.1016/j.bbrc.2023.02.068] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/17/2023] [Accepted: 02/24/2023] [Indexed: 02/27/2023]
Abstract
Obesity is commonly associated with excessive adipogenesis, a process by which preadipocytes undergo differentiation into mature adipocytes; however, the mechanisms underlying adipogenesis are not completely understood. Potassium channel tetramerization domain-containing 17 (Kctd17) belongs to the Kctd superfamily and act as a substrate adaptor of the Cullin 3-RING E3 ubiquitin ligase, which is involved in a wide variety of cell functions. However, its function in the adipose tissue remains largely unknown. Here, we found that Kctd17 expression levels were increased in white adipose tissue, especially in adipocytes, in obese mice compared to lean control mice. Gain or loss of function of Kctd17 in preadipocytes inhibited or promoted adipogenesis, respectively. Furthermore, we found that Kctd17 bound to C/EBP homologous protein (Chop) to target it for ubiquitin-mediated degradation, and this process was likely associated with increased adipogenesis. In conclusion, these data suggest that Kctd17 plays an important role in adipogenesis and can be a novel therapeutic target for obesity.
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Affiliation(s)
- Min Cheol Shin
- Department of Biomedical Sciences, College of Medicine, Inha University, Republic of Korea; Program in Biomedical Science & Engineering, Inha University, Republic of Korea; Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Young Hoon Jung
- Department of Biomedical Sciences, College of Medicine, Inha University, Republic of Korea; Program in Biomedical Science & Engineering, Inha University, Republic of Korea; Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Yelin Jeong
- Department of Biomedical Sciences, College of Medicine, Inha University, Republic of Korea; Program in Biomedical Science & Engineering, Inha University, Republic of Korea; Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Ah-Reum Oh
- Department of Biomedical Sciences, College of Medicine, Inha University, Republic of Korea; Program in Biomedical Science & Engineering, Inha University, Republic of Korea; Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Sang Bae Lee
- Division of Life Sciences, Jeonbuk National University, Jeonju, 54896, Republic of Korea.
| | - KyeongJin Kim
- Department of Biomedical Sciences, College of Medicine, Inha University, Republic of Korea; Program in Biomedical Science & Engineering, Inha University, Republic of Korea; Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, 22212, Republic of Korea.
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14
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Min S, Kim DH, Joe DJ, Kim BW, Jung YH, Lee JH, Lee BY, Doh I, An J, Youn YN, Joung B, Yoo CD, Ahn HS, Lee KJ. Clinical Validation of a Wearable Piezoelectric Blood-Pressure Sensor for Continuous Health Monitoring. Adv Mater 2023:e2301627. [PMID: 36960816 DOI: 10.1002/adma.202301627] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/16/2023] [Indexed: 05/12/2023]
Abstract
Wearable blood-pressure sensors have recently attracted attention as healthcare devices for continuous non-invasive arterial pressure (CNAP) monitoring. However, the accuracy of wearable blood-pressure (BP) monitoring devices has been controversial due to the low signal quality of sensors, the absence of an accurate transfer function to convert the sensor signals into BP values, and the lack of clinical validation regarding measurement precision. Here, a wearable piezoelectric blood-pressure sensor (WPBPS) is reported, which achieves a high normalized sensitivity (0.062 kPa-1 ), and fast response time (23 ms) for CNAP monitoring. The transfer function of a linear regression model is designed, offering a simple solution to convert the flexible piezoelectric sensor signals into BP values. In order to verify the measurement accuracy of WPBPS, clinical trials are performed on 35 subjects aged from 20 to 80 s after screening. The mean difference between the WPBPS and a commercial sphygmomanometer of 175 BP data pairs is -0.89 ± 6.19 and -0.32 ± 5.28 mmHg for systolic blood pressure (SBP) and diastolic blood pressure (DBP), respectively. By building a WPBPS-embedded wristwatch, the potentially promising use of a convenient, portable, continuous BP monitoring system for cardiovascular disease diagnosis is demonstrated.
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Affiliation(s)
- Seongwook Min
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Dong Hyun Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Daniel J Joe
- Safety Measurement Institute, Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Byung Woo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Young Hoon Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jae Hee Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Bo-Yeon Lee
- Department of Nature-Inspired System and Application, Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34103, Republic of Korea
| | - Il Doh
- Safety Measurement Institute, Korea Research Institute of Standards and Science (KRISS), 267 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - Jaehun An
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Young-Nam Youn
- Division of Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University, College of Medicine, Yonsei University Health System, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Boyoung Joung
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Chang D Yoo
- Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyo-Suk Ahn
- Department of Internal Medicine, Division of Cardiology, Uijeongbu St Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea
| | - Keon Jae Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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15
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Oh AR, Jeong Y, Yu J, Minh Tam DT, Kang JK, Jung YH, Im SS, Lee SB, Ryu D, Pajvani UB, Kim K. Hepatocyte Kctd17 Inhibition Ameliorates Glucose Intolerance and Hepatic Steatosis Caused by Obesity-induced Chrebp Stabilization. Gastroenterology 2023; 164:439-453. [PMID: 36402191 PMCID: PMC9975067 DOI: 10.1053/j.gastro.2022.11.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 10/13/2022] [Accepted: 11/09/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND & AIMS Obesity predisposes to type 2 diabetes (T2D) and nonalcoholic fatty liver disease (NAFLD), but underlying mechanisms are incompletely understood. Potassium channel tetramerization domain-containing protein 17 (Kctd17) levels are increased in livers from obese mice and humans. In this study, we investigated the mechanism of increased Kctd17 and whether it is causal to obesity-induced metabolic complications. METHODS We transduced Rosa26-LSL-Cas9 knockin mice with AAV8-TBG-Cre (Control), AAV8-U6-Kctd17 sgRNA-TBG-Cre (L-Kctd17), AAV8-U6-Oga sgRNA-TBG-Cre (L-Oga), or AAV8-U6-Kctd17/Oga sgRNA-TBG-Cre (DKO). We fed mice a high-fat diet (HFD) and assessed for hepatic glucose and lipid homeostasis. We generated Kctd17, O-GlcNAcase (Oga), or Kctd17/Oga-knockout hepatoma cells by CRISPR-Cas9, and Kctd17-directed antisense oligonucleotide to test therapeutic potential in vivo. We analyzed transcriptomic data from patients with NAFLD. RESULTS Hepatocyte Kctd17 expression was increased in HFD-fed mice due to increased Srebp1c activity. HFD-fed L-Kctd17 or Kctd17 antisense oligonucleotide-treated mice show improved glucose tolerance and hepatic steatosis, whereas forced Kctd17 expression caused glucose intolerance and hepatic steatosis even in lean mice. Kctd17 induced Oga degradation, resulting in increasing carbohydrate response element-binding protein (Chrebp) protein, so concomitant Oga knockout negated metabolic benefits of hepatocyte Kctd17 deletion. In patients with NAFLD, KCTD17 messenger RNA was positively correlated with expression of Chrebp target and other lipogenic genes. CONCLUSIONS Srebp1c-induced hepatocyte Kctd17 expression in obesity disrupted glucose and lipid metabolism by stabilizing Chrebp, and may represent a novel therapeutic target for obesity-induced T2D and NAFLD.
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Affiliation(s)
- Ah-Reum Oh
- Department of Biological Sciences, College of Medicine, Inha University, Incheon, Republic of Korea; Program in Biomedical Science and Engineering, Inha University, Incheon, Republic of Korea; Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, Republic of Korea
| | - Yelin Jeong
- Department of Biological Sciences, College of Medicine, Inha University, Incheon, Republic of Korea; Program in Biomedical Science and Engineering, Inha University, Incheon, Republic of Korea; Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, Republic of Korea
| | - Junjie Yu
- Department of Medicine, Columbia University, New York, New York
| | - Dao Thi Minh Tam
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Jin Ku Kang
- Department of Medicine, Columbia University, New York, New York
| | - Young Hoon Jung
- Department of Biological Sciences, College of Medicine, Inha University, Incheon, Republic of Korea; Program in Biomedical Science and Engineering, Inha University, Incheon, Republic of Korea; Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, Republic of Korea
| | - Seung-Soon Im
- Department of Physiology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Sang Bae Lee
- Division of Life Sciences, Jeonbuk National University, Jeonju, Republic of Korea
| | - Dongryeol Ryu
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Utpal B Pajvani
- Department of Medicine, Columbia University, New York, New York.
| | - KyeongJin Kim
- Department of Biological Sciences, College of Medicine, Inha University, Incheon, Republic of Korea; Program in Biomedical Science and Engineering, Inha University, Incheon, Republic of Korea; Research Center for Controlling Intercellular Communication (RCIC), College of Medicine, Inha University, Incheon, Republic of Korea.
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16
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Jang JH, Kang HJ, Adedeji OE, Kim GY, Lee JK, Kim DH, Jung YH. Development of a pH indicator for monitoring the freshness of minced pork using a cellulose nanofiber. Food Chem 2023; 403:134366. [DOI: 10.1016/j.foodchem.2022.134366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/31/2022] [Accepted: 09/18/2022] [Indexed: 10/14/2022]
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Ban O, Bang WY, Jeon HJ, Jung YH, Yang J, Kim DH. Potential of
Bifidobacterium lactis
IDCC 4301 isolated from breast milk‐fed infant feces as a probiotic and functional ingredient. Food Sci Nutr 2023; 11:1952-1964. [PMID: 37051343 PMCID: PMC10084967 DOI: 10.1002/fsn3.3230] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 12/07/2022] [Accepted: 01/07/2023] [Indexed: 02/10/2023] Open
Abstract
Probiotics provide important health benefits to the host by improving intestinal microbial balance and have been widely consumed as dietary supplements. In this study, we investigated whether Bifidobacterium lactis IDCC 4301 (BL), isolated from feces of breast milk-fed infants, is safe to consume. Based on the guidelines established by the European Food Safety Authority (EFSA), safety tests such as antibiotic susceptibility, hemolysis, toxic compound formation (i.e., biogenic amine and d-lactate), single-dose acute oral toxicity, and extracellular enzymatic activities were performed. In addition, toxigenic genes, antibiotic resistance genes, and mobile genetic elements were investigated by analyzing the genome sequence of BL. BL was susceptible to eight antibiotics except for vancomycin and the absence of transferable resistance in the genome of this strain implied that vancomycin resistance is likely to be intrinsic. With regard to phenotypic characteristics, there was no concern of toxicity of this strain. Furthermore, BL utilized various carbohydrates and their conjugates through the activity of various endogenous carbohydrate-utilizing enzymes. Interestingly, the supernatant of the BL showed strong antipathogenic activity against various infectious pathogens. Therefore, we suggest that BL should be a safe probiotic and can be used as a functional ingredient in the food, cosmetic, and pharmaceutical industries.
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Affiliation(s)
- O‐Hyun Ban
- Ildong Bioscience Gyeonggi‐do South Korea
- School of Food Science and Biotechnology Kyungpook National University Daegu South Korea
| | | | - Hyeon Ji Jeon
- School of Food Science and Biotechnology Kyungpook National University Daegu South Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology Kyungpook National University Daegu South Korea
| | | | - Dong Hyun Kim
- School of Food Science and Biotechnology Kyungpook National University Daegu South Korea
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18
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Ban O, Lee M, Bang WY, Nam EH, Jeon HJ, Shin M, Yang J, Jung YH. Back Cover:
Bifidobacterium lactis
IDCC 4301 Exerts Anti‐Obesity Effects in High‐Fat Diet‐Fed Mice Model by Regulating Lipid Metabolism. Mol Nutr Food Res 2023. [DOI: 10.1002/mnfr.202370008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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19
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Park GM, Kong SJ, Park JH, Kang JE, An SH, Kim HS, Kim IS, Boggu PR, Jung YH. Synthesis and evaluation of ent-Conduramine C-1 derivatives as α-glucosidase inhibitors via CSI-mediated amination reaction. Carbohydr Res 2023; 524:108746. [PMID: 36682231 DOI: 10.1016/j.carres.2023.108746] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023]
Abstract
Concise synthesis of ent-conduramine C-1 and its derivatives has been achieved by using commercially available d-ribose. The key steps in the synthesis are regioselective and diastereoselective amination of polybenzyl ethers by chlorosulfonyl isocyanate (CSI), chelation-controlled carbonyl addition, and intramolecular olefin metathesis. All of the synthesized compounds were evaluated for inhibitory activity against α-glucosidase. The derivatives 18 (IC50 = 0.65 ± 0.03 mM) and 19 (IC50 = 0.26 ± 0.01 mM) were identified to be more potent than well-known α-glucosidase inhibitor acarbose (IC50 = 1.05 ± 0.17 mM) as a positive control.
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Affiliation(s)
- Gi Min Park
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Sun Ju Kong
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Jae Hyeon Park
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Ji Eun Kang
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Sung Hwan An
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Hyung Sik Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Pulla Reddy Boggu
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea.
| | - Young Hoon Jung
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea.
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20
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Ban OH, Lee M, Bang WY, Nam EH, Jeon HJ, Shin M, Yang J, Jung YH. Bifidobacterium lactis IDCC 4301 Exerts Anti-Obesity Effects in High-Fat Diet-Fed Mice Model by Regulating Lipid Metabolism. Mol Nutr Food Res 2023; 67:e2200385. [PMID: 36517937 DOI: 10.1002/mnfr.202200385] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
SCOPE Chronic hypernutrition promotes lipid accumulation in the body and excessive lipid accumulation leads to obesity. An increase in the number and size of adipocytes, a characteristic of obesity is closely associated with adipose dysfunction. Recent in vitro and in vivo studies have shown that probiotics may prevent this dysfunction by regulating lipid metabolism. However, the mechanisms of action of probiotics in obesity are not fully understood and their usage for treating obesity remains limited. METHODS AND RESULTS Bifidobacterium lactis IDCC 4301 is selected for its anti-obesity potential after evaluating inhibitory activity of pancreatic lipase and cholesterol reducing activity. Next, this study investigates the roles of B. lactis IDCC 4301 on lipid metabolism in 3T3-L1 preadipocytes and high-fat diet (HFD)-fed mice. B. lactis IDCC 4301 inhibits cell differentiation and lipid accumulation by suppressing the expression of adipogenic enzymes in 3T3-L1 cells. Moreover, the administration of B. lactis IDCC 4301 decreases body and adipose tissue weight, improves serum lipid levels, and downregulates adipogenic mRNA expression in HFD-fed mice. Additionally, metabolomic analysis suggests that 2-ketobutyrate should be a possible target compound against obesity. CONCLUSIONS B. lactis IDCC 4301 may be used as an alternative treatment for obesity.
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Affiliation(s)
- O-Hyun Ban
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea.,School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Minjee Lee
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea
| | - Won Yeong Bang
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea
| | - Eoun Ho Nam
- Department of Microbiology, College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Hyeon Ji Jeon
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Minhye Shin
- Department of Microbiology, College of Medicine, Inha University, Incheon, 22212, Republic of Korea
| | - Jungwoo Yang
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
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21
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Kong SJ, Nam G, Boggu PR, Park GM, Kang JE, Park HJ, Jung YH. Synthesis and biological evaluation of novel N-benzyltriazolyl-hydroxamate derivatives as selective histone deacetylase 6 inhibitors. Bioorg Med Chem 2023; 79:117154. [PMID: 36645952 DOI: 10.1016/j.bmc.2023.117154] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/30/2022] [Accepted: 01/03/2023] [Indexed: 01/12/2023]
Abstract
Histone deacetylases (HDAC) regulate post-translational acetylation and the inhibition of these enzymes has emerged as an intriguing disease therapeutic. Among them, class IIb HDAC6 has the unique characteristic of mainly deacetylating cytoplasmic proteins, suggesting clinical applications for neurodegenerative diseases, inflammation, and cancer. In this study, we designed a novel N-benzyltriazolyl-hydroxamate scaffold based on the known HDAC6 inhibitors nexturastat A and tubastatin A. Among the 27 derivatives, 3-fluoro-4-((3-(2-fluorophenyl)-1H-1,2,4-triazol-1-yl)methyl)-N-hydroxybenzamide 4u (HDAC6 IC50 = 7.08 nM) showed nanomolar HDAC6 inhibitory activity with 42-fold selectivity over HDAC1. Structure-activity relationship (SAR) and computational docking studies were conducted to optimize the triazole capping group. Docking analysis revealed that the capping group aligned with the conserved L1 pocket of HDAC6 and was associated with subtype selectivity. Overall, our study explored the triazole-based biaryl capping group and its substitution and orientation, suggesting a rationale for the design of HDAC6-selective inhibitors.
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Affiliation(s)
- Sun Ju Kong
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Gibeom Nam
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Pulla Reddy Boggu
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Gi Min Park
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Ji Eun Kang
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyun-Ju Park
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Young Hoon Jung
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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22
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Jeon HJ, Kim J, Seok WY, Kim GS, Choi B, Shin M, Lee JH, Kim Y, Yang J, Jung YH. Metabolome changes in probiotics in the stationary phase increases resistance to lyophilization. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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23
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Kim H, Kim J, Lee M, Jeon HJ, Moon JS, Jung YH, Yang J. Increased Amino Acid Absorption Mediated by Lacticaseibacillus rhamnosus IDCC 3201 in High-Protein Diet-Fed Mice. J Microbiol Biotechnol 2023; 33:511-518. [PMID: 36788464 PMCID: PMC10164732 DOI: 10.4014/jmb.2212.12020] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/10/2023] [Accepted: 01/10/2023] [Indexed: 02/16/2023]
Abstract
The use of dietary protein products has increased with interests in health promotion, and demand for sports supplements. Among various protein sources, milk protein is one of the most widely employed, given its economic and nutritional advantages. However, recent studies have revealed that milk protein undergoes fecal excretion without complete hydrolysis in the intestines. To increase protein digestibility, heating and drying were implemented; however, these methods reduce protein quality by causing denaturation, aggregation, and chemical modification of amino acids. In the present study, we observed that Lacticaseibacillus rhamnosus IDCC 3201 actively secretes proteases that hydrolyze milk proteins. Furthermore, we showed that co-administration of milk proteins and L. rhamnosus IDCC 3201 increased the digestibility and plasma concentrations of amino acids in a high-protein diet mouse model. Thus, food supplementation of L. rhamnosus IDCC 3201 can be an alternative strategy to increase the digestibility of proteins.
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Affiliation(s)
- Hayoung Kim
- Ildong Bioscience, Pyeongtaek 17957, Republic of Korea
| | - Jungyeon Kim
- Carl R. Woese Institute for Genomic Biology, the University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Minjee Lee
- Ildong Bioscience, Pyeongtaek 17957, Republic of Korea
| | - Hyeon Ji Jeon
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jin Seok Moon
- Ildong Pharmaceutical, Hwaseong 18849, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jungwoo Yang
- Ildong Bioscience, Pyeongtaek 17957, Republic of Korea
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24
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Jeon HJ, You S, Kwon M, Shin M, Kim S, Jung YH. Multilayer coatings containing red ginseng dietary fiber improve the survivability and stability of probiotic bacteria. Int J Food Sci Technol 2023. [DOI: 10.1111/ijfs.16319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Hyeon Ji Jeon
- School of Food Science and Biotechnology Kyungpook National University Daegu 41566 Republic of Korea
| | - Seung‐hwan You
- Laboratory of Efficacy Research, Korea Ginseng Corporation Daejeon 34128 Republic of Korea
| | - Mijin Kwon
- Laboratory of Efficacy Research, Korea Ginseng Corporation Daejeon 34128 Republic of Korea
| | - Minhye Shin
- Department of Microbiology, College of Medicine Inha University Incheon 22212 Republic of Korea
| | - Sang‐Kyu Kim
- Laboratory of Efficacy Research, Korea Ginseng Corporation Daejeon 34128 Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology Kyungpook National University Daegu 41566 Republic of Korea
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25
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Lee JH, Ahn Y, Lee HE, Jang YN, Park AY, Kim S, Jung YH, Sung SH, Shin JH, Lee SH, Park SH, Kim KS, Jang MS, Kim BJ, Oh SH, Lee KJ. Wearable Surface-Lighting Micro-Light-Emitting Diode Patch for Melanogenesis Inhibition. Adv Healthc Mater 2023; 12:e2201796. [PMID: 36189834 DOI: 10.1002/adhm.202201796] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/02/2022] [Indexed: 02/03/2023]
Abstract
Wearable light-emitting diode (LED)-based phototherapeutic devices have recently attracted attention as skin care tools for wrinkles, acne, and hyperpigmentation. However, the therapeutic effectiveness and safety of LED stimulators are still controversial due to their inefficient light transfer, high heat generation, and non-uniform spot irradiation. Here, a wearable surface-lighting micro-LED (SµLED) photostimulator is reported for skin care and cosmetic applications. The SµLEDs, consisting of a light diffusion layer (LDL), 900 thin film µLEDs, and polydimethylsiloxane (PDMS), achieve uniform surface-lighting in 2 × 2 cm2 -sized area with 100% emission yields. The SµLEDs maximize photostimulation effectiveness on the skin surface by uniform irradiation, high flexibility, and thermal stability. The SµLED's effect on melanogenesis inhibition is evaluated via in vitro and in vivo experiments to human skin equivalents (HSEs) and mouse dorsal skin, respectively. The anti-melanogenic effect of SµLEDs is confirmed by significantly reduced levels of melanin contents, melan-A, tyrosinase, and microphthalmia-associated transcription factor (MITF), compared to a conventional LED (CLED) stimulator.
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Affiliation(s)
- Jae Hee Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Yuri Ahn
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Han Eol Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.,Division of Advanced Materials Engineering, Jeonbuk National University, 567 Baekje-Daero, Deokjin-gu, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea
| | - You Na Jang
- Department of Dermatology, Chung-Ang University Hospital, 224-1 Heukseok-dong, Dongjak-gu, Seoul, 156-755, Republic of Korea
| | - A Yeon Park
- Department of Dermatology, Chung-Ang University Hospital, 224-1 Heukseok-dong, Dongjak-gu, Seoul, 156-755, Republic of Korea
| | - Shinho Kim
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Young Hoon Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Sang Hyun Sung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jung Ho Shin
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Seung Hyung Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Sang Hyun Park
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Ki Soo Kim
- Fronics Co., Ltd., 754, Seolleung-ro, Gangnam-gu, Seoul, 06062, Republic of Korea
| | - Min Seok Jang
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Beom Joon Kim
- Department of Dermatology, Chung-Ang University Hospital, 224-1 Heukseok-dong, Dongjak-gu, Seoul, 156-755, Republic of Korea
| | - Sang Ho Oh
- Department of Dermatology and Cutaneous Biology Research Institute, Severance Hospital Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Keon Jae Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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26
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Jeon HJ, You SH, Nam EH, Truong VL, Bang JH, Bae YJ, Rarison RHG, Kim SK, Jeong WS, Jung YH, Shin M. Red ginseng dietary fiber promotes probiotic properties of Lactiplantibacillus plantarum and alters bacterial metabolism. Front Microbiol 2023; 14:1139386. [PMID: 36950168 PMCID: PMC10025373 DOI: 10.3389/fmicb.2023.1139386] [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: 01/06/2023] [Accepted: 02/20/2023] [Indexed: 03/08/2023] Open
Abstract
Korean red ginseng has been widely used as an herbal medicine. Red ginseng dietary fiber (RGDF) is a residue of the processed ginseng product but still contains bioactive constituents that can be applied as prebiotics. In this study, we evaluated changes on fermentation profiles and probiotic properties of strains that belong to family Lactobacillaceae with RGDF supplementation. Metabolomic analyses were performed to understand specific mechanisms on the metabolic alteration by RGDF and to discover novel bioactive compounds secreted by the RGDF-supplemented probiotic strain. RGDF supplementation promoted short-chain fatty acid (SCFA) production, carbon source utilization, and gut epithelial adhesion of Lactiplantibacillus plantarum and inhibited attachment of enteropathogens. Intracellular and extracellular metabolome analyses revealed that RGDF induced metabolic alteration, especially associated with central carbon metabolism, and produced RGDF-specific metabolites secreted by L. plantarum, respectively. Specifically, L. plantarum showed decreases in intracellular metabolites of oleic acid, nicotinic acid, uracil, and glyceric acid, while extracellular secretion of several metabolites including oleic acid, 2-hydroxybutanoic acid, hexanol, and butyl acetate increased. RGDF supplementation had distinct effects on L. plantarum metabolism compared with fructooligosaccharide supplementation. These findings present potential applications of RGDF as prebiotics and bioactive compounds produced by RGDF-supplemented L. plantarum as novel postbiotic metabolites for human disease prevention and treatment.
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Affiliation(s)
- Hyeon Ji Jeon
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Seung-Hwan You
- Laboratory of Efficacy Research, Korea Ginseng Corporation, Daejeon, Republic of Korea
| | - Eoun Ho Nam
- Department of Microbiology, College of Medicine, Inha University, Incheon, Republic of Korea
- Department of Biomedical Sciences, Program in Biomedical Science and Engineering, Inha University, Incheon, Republic of Korea
| | - Van-Long Truong
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Ji-Hong Bang
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Yeon-Ji Bae
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Razanamanana H. G. Rarison
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Sang-Kyu Kim
- Laboratory of Efficacy Research, Korea Ginseng Corporation, Daejeon, Republic of Korea
| | - Woo-Sik Jeong
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Young Hoon Jung
- Food and Bio-Industry Research Institute, School of Food Science and Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
- *Correspondence: Young Hoon Jung,
| | - Minhye Shin
- Department of Microbiology, College of Medicine, Inha University, Incheon, Republic of Korea
- Department of Biomedical Sciences, Program in Biomedical Science and Engineering, Inha University, Incheon, Republic of Korea
- Minhye Shin,
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27
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Kim MJ, Istianah N, So BR, Kang HJ, Woo MJ, Park SJ, Kim HJ, Jung YH, Jung SK. Preparation of High-Solid Microfibrillated Cellulose from Gelidium amansii and Characterization of Its Physiochemical and Biological Properties. J Microbiol Biotechnol 2022; 32:1589-1598. [PMID: 36377200 PMCID: PMC9843813 DOI: 10.4014/jmb.2210.10009] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/14/2022] [Accepted: 10/14/2022] [Indexed: 11/17/2022]
Abstract
Microfibrillated cellulose (MFC) is a valuable material with wide industrial applications, particularly for the food and cosmetics industries, owing to its excellent physiochemical properties. Here, we prepared high-solid microfibrillated cellulose (HMFC) from the centrifugation of Gelidium amansii-derived MFC right after fibrillation. Dispersion properties, morphology, and structural changes were monitored during processing. HMFC has a five-fold higher solid concentration than MFC without significant changes to dispersion properties. SEM images and FTIR spectra of HMFC revealed a stable surface and structure against centrifugal forces. HMFC exhibited 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activity, although it could not scavenge 2,2-diphenyl-1-picrylhydrazyl (DPPH). Moreover, HMFC inhibited the generation of LPS-induced excessive nitrite and radial oxygen species in murine macrophage RAW264.7 cells. Additionally, HMFC suppressed LPS-induced Keap-1 expression in the cytosol but did not alter iNOS expression. HMFC also attenuated the UVB-induced phosphorylation of p38, c-Jun N-terminal kinase (JNK) 1/2, and extracellular-signal-regulated kinase (ERK) 1/2, as well as the phosphorylation of c-Jun in the immortalized human skin keratinocyte HaCaT cells. Therefore, the application of centrifugation is suitable for producing high-solid MFC as a candidate material for anti-inflammatory and anti-oxidative marine cosmeceuticals.
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Affiliation(s)
- Min Jeong Kim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Nur Istianah
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea,Department of Food Science and Biotechnology, Brawijaya University, Malang 65145, Indonesia
| | - Bo Ram So
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hye Jee Kang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Min Jeong Woo
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Su Jin Park
- Research Center, Honest Co., Ltd., Daegu 41064, Republic of Korea
| | - Hyun Jeong Kim
- Research Center, Honest Co., Ltd., Daegu 41064, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea,Institute of Fermentation Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea,Corresponding authors Y.H. Jung Phone: +82-53-950-7764 Fax: +82-53-950-7762 E-mail:
| | - Sung Keun Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea,Research Institute of Tailored Food Technology, Kyungpook National University, Daegu 41566, Republic of Korea,
S.K. Jung Phone: +82-53-950-7764 Fax: +82-53-950-7762 E-mail:
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28
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Kim SH, Yehuala GA, Bang WY, Yang J, Jung YH, Park MK. Safety Evaluation of Bacillus subtilis IDCC1101, Newly Isolated from Cheonggukjang, for Industrial Applications. Microorganisms 2022; 10:microorganisms10122494. [PMID: 36557747 PMCID: PMC9784242 DOI: 10.3390/microorganisms10122494] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/11/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
The present study aimed to evaluate the safety of Bacillus subtilis (BS) IDCC1101, newly isolated from Cheonggukjang in Korea. Genome sequencing of BS IDCC1101 was performed to investigate the presence of secondary metabolites, virulence, antibiotic resistance, and mobile elements. Its phenotypic safety analyses included antibiotic susceptibility, enzyme activity, carbohydrate utilization, production of biogenic amines (BAs) and D-/L-lactate, hemolytic activity, and toxicities in HaCaT cells and rats. The genome of BS IDCC1101 consisted of 4,118,950 bp with 3077 functional genes. Among them, antimicrobial and antifungal secondary metabolites were found, such as fengycin, bacillibactin, and bacilysin. Antibiotic resistance and virulence genes did not exhibit transferability since they did not overlap with mobile elements in the genome. BS IDCC1101 was susceptible to almost all antibiotics suggested for assessment of BS's antibiotic susceptibility by EFSA guidelines, except for streptomycin. BS IDCC1101 showed the utilization of a wide range of 27 carbohydrates, as well as enzyme activities such as alkaline phosphatase, esterase, esterase lipase, naphthol-AS-BI-phosphohydrolase, α-galactosidase, β-galactosidase, α-glucosidase, and β-glucosidase activities. Additionally, BS IDCC1101 did not exhibit the production of D-/L-lactate and hemolytic activities. Its toxicity in HaCaT cells and rats was also not detected. Thus, these genotypic and phenotypic findings indicate that BS IDCC1101 can be safely used for industrial applications.
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Affiliation(s)
- Su-Hyeon Kim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
- Food and Bio-Industry Research Institute, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Gashaw Assefa Yehuala
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
- Department of Food Engineering, College of Biological and Chemical Engineering, Addis Ababa Science and Technology University, Addis Ababa 16417, Ethiopia
| | - Won Yeong Bang
- Ildong Bioscience, Pyeongtaek-si 17957, Republic of Korea
| | - Jungwoo Yang
- Ildong Bioscience, Pyeongtaek-si 17957, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
- Food and Bio-Industry Research Institute, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Mi-Kyung Park
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
- Food and Bio-Industry Research Institute, Kyungpook National University, Daegu 41566, Republic of Korea
- Correspondence: ; Tel.: +82-53-950-5776
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29
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Shin M, Truong VL, Lee M, Kim D, Kim MS, Cho H, Jung YH, Yang J, Jeong WS, Kim Y. Investigation of phenyllactic acid as a potent tyrosinase inhibitor produced by probiotics. Curr Res Food Sci 2022; 6:100413. [PMID: 36569188 PMCID: PMC9772785 DOI: 10.1016/j.crfs.2022.100413] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/13/2022] Open
Abstract
Melanogenesis is responsible for skin pigmentation and the enzymatic browning of foods. Tyrosinases play a major role in melanin synthesis, and many attempts have been made to identify new natural tyrosinase inhibitors, but few have sought to do in microbes. Postbiotics are bioactive compounds produced by the metabolism of probiotics and have been reported to be safe and effective. In this study, we evaluated the tyrosinase inhibitory effects of culture supernatants of probiotics and discovered novel bacterial metabolites that can be used as a potent tyrosinase inhibitor based on metabolomics. Cultures of Bifidobacterium bifidum IDCC 4201 and Lactiplantibacillus plantarum IDCC 3501 showed effective anti-tyrosinase, reduced melanin synthesis, and altered protein expression associated with the melanogenesis pathway. Comparative metabolomics analyses conducted by GC-MS identified metabolites commonly produced by B. bifidum and L. plantarum. Of eight selected metabolites, phenyllactic acid exhibited significant tyrosinase-inhibitory activity. Our findings suggest that applications of probiotic culture supernatants containing high amounts of phenyllactic acid have potential use as anti-melanogenesis agents in food and medicines.
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Affiliation(s)
- Minhye Shin
- Department of Microbiology, College of Medicine, Inha University, Incheon, 22212, Republic of Korea
- Department of Biomedical Science, Program in Biomedical Science and Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Van-Long Truong
- Food and Bio-industry Research Institute, School of Food Science & Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Minjee Lee
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea
| | - Donggyu Kim
- Department of Microbiology, College of Medicine, Inha University, Incheon, 22212, Republic of Korea
- Department of Biomedical Science, Program in Biomedical Science and Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Myun Soo Kim
- ICBIO, Cheonan-si, Chungchengnam-do, 31027, Republic of Korea
| | - Hana Cho
- ICBIO, Cheonan-si, Chungchengnam-do, 31027, Republic of Korea
| | - Young Hoon Jung
- Food and Bio-industry Research Institute, School of Food Science & Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jungwoo Yang
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea
- Corresponding author.
| | - Woo Sik Jeong
- Food and Bio-industry Research Institute, School of Food Science & Biotechnology, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
- Corresponding author.
| | - Younghoon Kim
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Science, Seoul National University, Seoul, 08826, Republic of Korea
- Corresponding author.
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30
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Lee M, Jung YH, Eun J. Market performance and the loss aversion behind green management. Journal of General Management 2022. [DOI: 10.1177/03063070221123456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
As societies become more concerned with environmental protection, some firms go beyond their legal obligations and proactively adopt their own green management practices even if those practices cannot produce short-term benefits. As a result, researchers have begun to question the underlying motives of these firms. Leveraging corporate loss aversion, we argue that firms that outperform their peers become more risk-seeking to avoid any future loss of competitive advantage. As a result, they become more likely to engage in stakeholder management in the form of green management practices. Specifically, we explore the Green Power Partnership (GPP) which solicits firms to purchase green power. Using the data for the green power consumed by firms that are participating in the GPP program in the United States, we find that firms with performance above social aspiration are likely to increase their use of green power. We also find that related diversification has a negative influence on such motivation.
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Affiliation(s)
- Minjung Lee
- The University of Texas at Dallas, Texas, TX, USA
| | | | - Jihyun Eun
- Salisbury University, Salisbury, MD, USA
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31
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Adedeji OE, Choi JY, Park GE, Kang HJ, Aminu MO, Min JH, Chinma CE, Moon KD, Jung YH. Formulation and characterization of an interpenetrating network hydrogel of locust bean gum and cellulose microfibrils for 3D printing. INNOV FOOD SCI EMERG 2022. [DOI: 10.1016/j.ifset.2022.103086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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32
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Kong Y, Boggu PR, Park GM, Kim YS, An SH, Kim IS, Jung YH. Total Synthesis of Eliglustat via Diastereoselective Amination of Chiral para-Methoxycinnamyl Benzyl Ether. Molecules 2022; 27:molecules27082603. [PMID: 35458801 PMCID: PMC9029353 DOI: 10.3390/molecules27082603] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/07/2022] [Accepted: 04/14/2022] [Indexed: 11/29/2022] Open
Abstract
Eliglustat (Cerdelga®, Genzyme Corp. Cambridge, MA, USA) is an approved drug for a non-neurological type of Gaucher disease. Herein, we describe the total synthesis of eliglustat 1 starting from readily available 1,4-benzodioxan-6-carbaldehyde via Sharpless asymmetric dihydroxylation and diastereoselective amination of chiral para-methoxycinnamyl benzyl ethers using chlorosulfonyl isocyanate as the key steps. Notably, the reaction between syn-1,2-dibenzyl ether 6 and chlorosulfonyl isocyanate in the mixture of toluene and hexane (10:1) afforded syn-1,2-amino alcohol 5 at a 62% yield with a diastereoselectivity > 20:1. This observation can be explained by competition between the SNi and the SN1 mechanisms, leading to the retention of stereochemistry.
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33
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Adedeji OE, Lee HE, Kim Y, Kang HJ, Kang MD, Kim JY, Kim JS, Ezekiel OO, Kim W, Lee S, Moon K, Jung YH. Three‐dimensional printing of wheat flour and
Acheta domesticus
powder blends. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Olajide Emmanuel Adedeji
- School of Food Science and Biotechnology Kyungpook National University Daegu 41566 Republic of Korea
- Department of Food Science and Technology Federal University Wukari PMB 1020 Wukari Nigeria
| | - Ha Eun Lee
- School of Food Science and Biotechnology Kyungpook National University Daegu 41566 Republic of Korea
| | - Yeojin Kim
- Department of Biotechnology College of Life Sciences and Biotechnology Korea University Seoul 02841 Republic of Korea
| | - Hye Jee Kang
- School of Food Science and Biotechnology Kyungpook National University Daegu 41566 Republic of Korea
| | - Mi Dan Kang
- School of Food Science and Biotechnology Kyungpook National University Daegu 41566 Republic of Korea
| | - Ji Yoon Kim
- School of Food Science and Biotechnology Kyungpook National University Daegu 41566 Republic of Korea
| | - Jung Soo Kim
- School of Food Science and Biotechnology Kyungpook National University Daegu 41566 Republic of Korea
| | | | - Won‐Chan Kim
- Department of Applied Biosciences Kyungpook National University Daegu 41566 Republic of Korea
- Department of Integrative Biology Kyungpook National University Daegu 41566 Republic of Korea
| | - Sung‐Joon Lee
- Department of Biotechnology College of Life Sciences and Biotechnology Korea University Seoul 02841 Republic of Korea
| | - Kwang‐Deog Moon
- School of Food Science and Biotechnology Kyungpook National University Daegu 41566 Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology Kyungpook National University Daegu 41566 Republic of Korea
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Yeo HJ, Adedeji OE, Kang MD, Park HS, Shin M, Kim DH, Jung YH. Tracing characteristic variations of cellulose nanocrystals during the post-synthesis purification process. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04121-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bang WY, Kim H, Chae SA, Yang SY, Ban OH, Kim TY, Kwon HS, Jung YH, Yang J. A Quadruple Coating of Probiotics for Enhancing Intestinal Adhesion and Competitive Exclusion of Salmonella Typhimurium. J Med Food 2022; 25:213-218. [PMID: 35072526 DOI: 10.1089/jmf.2021.k.0117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Previously, our group showed that a quadruple coating of probiotics resulted in higher survivability of probiotics under high acid, bile salt, and thermal stresses. In this study, we evaluated the effect of the quadruple coating of probiotics on adhesive properties as well as on competitive exclusion of Salmonella Typhimurium in Caco-2 cells. We found that the quadruple coating of probiotics exhibited an overall increased adhesion property (up to 10.8-fold) and increased competitive exclusion of Salmonella Typhimurium (up to 4.3-fold). Thus, this study has significant implications and can lead to the development of methods that can improve the adhesive ability of probiotics as well as the adhesive inhibition of pathogens.
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Affiliation(s)
| | - Hayoung Kim
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, Korea
| | - Seung A Chae
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, Korea
| | - Soo-Yeon Yang
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, Korea
| | - O-Hyun Ban
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, Korea.,School of Food Science and Biotechnology, Kyungpook National University, Daegu, Korea
| | - Tae-Yoon Kim
- Ildong Pharmaceutical, Hwaseong-si, Gyeonggi-do, Korea
| | | | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, Korea
| | - Jungwoo Yang
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do, Korea
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Kim SJ, Eom H, Hoon Jung Y, Kim MK, Kim E, Kim JJ. Brain functional connectivity during and after imagery of gaming and alternative leisure activities in patients with internet gaming disorder. Neurosci Lett 2022; 772:136451. [PMID: 35041909 DOI: 10.1016/j.neulet.2022.136451] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND The effect of gaming cue exposure on brain activity in patients with internet gaming disorder (IGD) has been investigated a lot, but the effect on brain connectivity has not. This study aimed to investigate the effects of imageries of gaming and alternative leisure activities on functional connectivity during the during-task and post-task states in patients with IGD. METHODS Twenty-nine patients and 20 healthy controls were scanned in the 6-min states before, during, and after the imagery tasks for gaming and alternative leisure behaviors using fMRI. Seed-based functional connectivity during and after the tasks were analyzed. The seeds were the nucleus accumbens (NAcc), ventral tegmental area (VTA), caudate, putamen, anterior cingulate cortex (ACC), and posterior cingulate cortex. RESULTS The group-by-state interaction effects for the during-tasks were found in caudate-, putamen-, and ACC-based connectivity, whereas those for the post-tasks were shown only in NAcc-based connectivity. In particular, patients showed that caudate-right parahippocampal gyrus connectivity and putamen-right orbitofrontal cortex connectivity increased during gaming and decreased during alternative, whereas NAcc-right precuneus connectivity decreased at baseline, increased in post-gaming, and were not different in post-alternative. CONCLUSION Differences in during-task connectivity of the habit/motor and salience networks and post-task resting-state connectivity of the reward and limbic networks between the two imagery tasks may differ between the groups. In the treatment of IGD, when these network connections are reactive to alternative leisure activity, just as to gaming activity, they seem to be freed from gaming addiction.
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Affiliation(s)
- Soo-Jeong Kim
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyojung Eom
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Hoon Jung
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min-Kyeong Kim
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eunjoo Kim
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea; Department of Psychiatry, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae-Jin Kim
- Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea; Department of Psychiatry, Yonsei University College of Medicine, Seoul, Republic of Korea
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Kim T, Mondal SC, Jeong C, Kim S, Ban O, Jung YH, Yang J, Kim S. Safety evaluation of Lactococcus lactis IDCC 2301 isolated from homemade cheese. Food Sci Nutr 2022; 10:67-74. [PMID: 35035910 PMCID: PMC8751446 DOI: 10.1002/fsn3.2648] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 11/07/2022] Open
Abstract
For applications of microorganisms as probiotics in the food industry, safety evaluation has increasingly become important to ensure the health of consumers. Although people have been using various lactic acid bacteria for different purposes, some studies have reported that certain lactic acid bacteria exhibit properties of virulence and produce toxic compounds. Thus, it is necessary to examine the characteristics associated with lactic acid bacteria that are safe for use as probiotics. This research aimed to assess the safety of Lactococcus lactis IDCC 2301 isolated from homemade cheese using in vitro and in vivo assays, including antibiotic resistance, hemolytic activity, toxin production, infectivity, and metabolic activity in immune-compromised animal species. The results demonstrated that the strain was susceptible to nine antibiotics suggested by the European Food Safety Authority (EFSA). Whole-genome analysis revealed that L. lactis IDCC 2301 neither has toxigenic genes nor harbors antibiotic resistance. Moreover, L. lactis IDCC 2301 showed neither hemolytic nor β-glucuronidase activity. Furthermore, none of the D-lactate and biogenic amines were produced by L. lactis IDCC 2301. Finally, it was demonstrated that there was no toxicity and mortality using single-dose oral toxicity tests in rats. These results indicate that L. lactis IDCC 2301 can be safely used as probiotics for human consumption.
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Affiliation(s)
- Taeok Kim
- Department of Integrative Food, Bioscience and BiotechnologyChonnam National UniversityGwangjuRepublic of Korea
| | - Shakti Chandra Mondal
- Department of Integrative Food, Bioscience and BiotechnologyChonnam National UniversityGwangjuRepublic of Korea
| | - Chae‐Rim Jeong
- Department of Integrative Food, Bioscience and BiotechnologyChonnam National UniversityGwangjuRepublic of Korea
| | - So‐Rim Kim
- Department of Integrative Food, Bioscience and BiotechnologyChonnam National UniversityGwangjuRepublic of Korea
| | - O‐Hyun Ban
- Ildong BioscienceGyeonggi‐doRepublic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, and Institute of Fermentation BiotechnologyKyungpook National UniversityDaeguRepublic of Korea
| | | | - Soo‐Jung Kim
- Department of Integrative Food, Bioscience and BiotechnologyChonnam National UniversityGwangjuRepublic of Korea
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Bang WY, Adedeji OE, Kang HJ, Kang MD, Yang J, Lim YW, Jung YH. Influence of cellulose nanocrystal addition on the production and characterization of bacterial nanocellulose. Int J Biol Macromol 2021; 193:269-275. [PMID: 34695495 DOI: 10.1016/j.ijbiomac.2021.10.092] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/08/2021] [Accepted: 10/12/2021] [Indexed: 10/20/2022]
Abstract
Bacterial nanocellulose (BNC) is characterized by high purity and excellent mechanical properties; however, its production is constrained by low yield. Therefore, efforts aimed at improving its yield and material properties are imperative. This study investigated the effect of adding different concentrations (0%, 0.5%, and 1.0%) of cellulose nanocrystal (CNC) in Hestrin-Schramm modified medium on the yield and properties of BNC produced by Komagataeibacter sp. SFCB22-18. The BNC yield increased as following an increase in added CNC concentration. Also, the morphology, structure, crystallinity, thermal stability, and mechanical properties of BNC improved after CNC incorporation. A low CNC concentration (0.1%) favored mechanical strength, whereas 0.5% gave the optimum morphology, structural, and thermal stability. These results showed that modifying BNC with CNC could help increase yield and improve its properties, and thus; the potentiality of BNC in various applications would be much enhanced.
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Affiliation(s)
- Won Yeong Bang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do 17957, Republic of Korea.
| | - Olajide Emmanuel Adedeji
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea; Department of Food Science and Technology, Federal University Wukari, P.M.B. 1020 Wukari, Nigeria.
| | - Hye Jee Kang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Mi Dan Kang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jungwoo Yang
- Ildong Bioscience, Pyeongtaek-si, Gyeonggi-do 17957, Republic of Korea.
| | - Young Woon Lim
- School of Biological Sciences and Institution of Microbiology, Seoul National University, Seoul 08826, Republic of Korea.
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea.
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Yang SY, Chae SA, Bang WY, Lee M, Ban OH, Kim SJ, Jung YH, Yang J. Anti-inflammatory potential of Lactiplantibacillus plantarum IDCC 3501 and its safety evaluation. Braz J Microbiol 2021; 52:2299-2306. [PMID: 34495527 PMCID: PMC8578256 DOI: 10.1007/s42770-021-00603-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 05/31/2021] [Accepted: 08/21/2021] [Indexed: 01/04/2023] Open
Abstract
This study investigated the anti-inflammatory activity of Lactiplantibacillus plantarum IDCC 3501 isolated from kimchi (Korean fermented food) and its safety. When lipopolysaccharide (LPS)-induced RAW 264.7 macrophages were treated with cell-free supernatant from L. plantarum IDCC 3501, the mRNA expression level of inflammatory markers (i.e., TNF-α, IL-1β, and IL-6) was significantly reduced. In addition, the decreased cell viability by LPS was recovered and NO production in LPS-induced cell was also decreased. For the safety assessment, the genes responsible for antibiotic resistance and virulence were not detected from the genome analysis of this strain. Consistent with this, minimal inhibitory concentrations against various antibiotics, biogenic amines, and D-lactate production, as well as enzymatic and hemolysis activities, indicated that L. plantarum IDCC 3501 did not produce any harmful compounds during fermentation. Furthermore, no acute toxicity and mortality were observed in a murine mouse model. Based on our findings, L. plantarum IDCC 3501 is safe and beneficial for human consumption.
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Affiliation(s)
- Soo-Yeon Yang
- Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea
| | - Seung A Chae
- Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea
| | - Won Yeong Bang
- Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea
| | - Minjee Lee
- Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea
| | - O-Hyun Ban
- Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Soo-Jung Kim
- Department of Integrative Food Bioscience and Biotechnology, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Jungwoo Yang
- Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do, 17957, Republic of Korea.
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Bang WY, Kim DH, Kang MD, Yang J, Huh T, Lim YW, Jung YH. Addition of Various Cellulosic Components to Bacterial Nanocellulose: A Comparison of Surface Qualities and Crystalline Properties. J Microbiol Biotechnol 2021; 31:1366-1372. [PMID: 34319261 PMCID: PMC9705885 DOI: 10.4014/jmb.2106.06068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/21/2021] [Accepted: 07/21/2021] [Indexed: 12/15/2022]
Abstract
Bacterial nanocellulose (BNC) is a biocompatible material with a lot of potential. To make BNC commercially feasible, improvements in its production and surface qualities must be made. Here, we investigated the in situ fermentation and generation of BNC by addition of different cellulosic substrates such as Avicel and carboxymethylcellulose (CMC) and using Komagataeibacter sp. SFCB22-18. The addition of cellulosic substrates improved BNC production by a maximum of about 5 times and slightly modified its structural properties. The morphological and structural properties of BNC were investigated by using Fourier transform-infrared spectroscopy (FT-IR), scanning electron microscopy and X-ray diffraction. Furthermore, a type-A cellulose-binding protein derived from Clostridium thermocellum, CtCBD3, was used in a novel biological analytic approach to measure the surface crystallinity of the BNC. Because Avicel and CMC may adhere to microfibrils during BNC synthesis or crystallization, cellulose-binding protein could be a useful tool for identifying the crystalline properties of BNC with high sensitivity.
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Affiliation(s)
- Won Yeong Bang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea,Ildong Bioscience, Pyeongtaek 17957, Republic of Korea
| | - Dong Hyun Kim
- Department of Biotechnology, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Mi Dan Kang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jungwoo Yang
- Ildong Bioscience, Pyeongtaek 17957, Republic of Korea
| | - Taelin Huh
- School of Life Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Young Woon Lim
- School of Biological Sciences and Institution of Microbiology, Seoul National University, Seoul 08826, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea,Corresponding author Phone: +82-53-950-5777 Fax: +82-53-950-6772 E-mail: younghoonjung@ knu.ac.kr
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Lee HE, Kim J, Kim Y, Bang WY, Yang J, Lee SJ, Jung YH. Identification and improvement of volatile profiles of Allomyrina dichotoma larvae by fermentation with lactic acid bacteria. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kim J, Lee HE, Kim Y, Yang J, Lee SJ, Jung YH. Development of a post-processing method to reduce the unique off-flavor of Allomyrina dichotoma: Yeast fermentation. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Jung YH, Zhu Z, Nguyen HW. Revisiting foreign market entry motivations: the case of Korean commercial banks. CCSM 2021. [DOI: 10.1108/ccsm-05-2020-0113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PurposeThis study examines what motivates firms to go and remain abroad despite uncertain profit potential. In a departure from probing traditional market-seeking, profit-driven motives, the authors explore how domestically driven, sociocultural motivations may shape the foreign market entry decisions of Korean commercial banks (KCBs). The authors argue that, due to the power imbalance between KCBs and their chaebol clients within the historical and cultural contexts of their relationships, KCBs' foreign market entries may depend more on their clients' presence in these markets than on their profit potential.Design/methodology/approachThe authors focus on the foreign market entries of KCBs and their client firms. Using the data of 8 KCBs and their client firms belonging to the 60 business groups (chaebols) of Korea, the authors analyze 6,577 observations involving the dyadic relationship between a KCB and its client firm in 15 host countries from 2005 to 2014.FindingsThe authors find that the number of clients' subsidiaries operating in foreign markets may increase the likelihood of KCBs entering these markets. Moreover, when KCBs earn more domestic profit from client firms, the potential Korean market in the host country is greater, and the institutional distance between the host country and Korea is smaller.Practical implicationsIn addition to the critical role of a bank-centered financing system in advancing a developing country and its firms, the authors’ findings suggest that firms should pay attention to the local diaspora and the institutional distance between the host and home countries in order to manage power-imbalanced relationships and make them sustainable.Originality/valueThe study contributes to the literature on foreign market entry by demonstrating how the home country's sociocultural factors may worsen the power imbalance, thereby pushing firms to make seemingly irrational decisions to go and stay abroad. That is, KCBs' foreign operations may be a way of seeking relational benefits with client firms, which would serve as a source of long-term domestic market profits. The authors’ findings thus highlight the need to consider how sociocultural factors may also shape firms' decision-making in their international business.
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Kim YS, Cheon MG, Boggu PR, Koh SY, Park GM, Kim G, Park SH, Park SL, Lee CW, Kim JW, Jung YH. Synthesis and biological evaluation of novel purinyl quinazolinone derivatives as PI3Kδ-specific inhibitors for the treatment of hematologic malignancies. Bioorg Med Chem 2021; 45:116312. [PMID: 34332211 DOI: 10.1016/j.bmc.2021.116312] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 07/09/2021] [Accepted: 07/15/2021] [Indexed: 10/20/2022]
Abstract
Phosphatidylinositol 3-kinases (PI3Ks) mediate intracellular signal transduction. Aberrant PI3K signaling is associated with oncogenesis and disease progression in solid tumors and hematologic malignancies. Idelalisib (1), a first-in-class PI3Kδ inhibitor for the treatment of hematologic malignancies, was developed, but its sales were limited by black box warnings due to unexpected adverse effects. Therefore, to overcome these adverse events, various quinazolinone derivatives were synthesized and evaluated in vitro based on their inhibitory activity against the PI3K enzyme and the viability of cell lines such as MOLT and SUDHL. Among them, 6f (IC50 = 0.39 nM) and 6m (IC50 = 0.09 nM) showed excellent enzyme activity, and 6m displayed an approximately four-fold higher selectivity for PI3Kγ/δ compared with Idelalisib (1). Furthermore, in vivo PK experiments with 6f and 6m revealed that 6f (AUClast = 81.04 h*ng/mL, Cmax = 18.34 ng/mL, Tmax = 0.5 h, t1/2 = 10.2 h in 1 mpk dose) had improved PK compared with 1. Finally, further experiments will be conducted with 6f selected as a candidate, and the potential for it to be developed as a treatment with good efficacy for hematologic malignancies will be determined.
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Affiliation(s)
- Yeon Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Republic of Korea
| | | | - Pulla Reddy Boggu
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Su Youn Koh
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Gi Min Park
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Gahee Kim
- Bioway, Inc., Chuncheon, Gangwon-do 24232, Republic of Korea
| | - Seo Hyun Park
- Bioway, Inc., Chuncheon, Gangwon-do 24232, Republic of Korea
| | - Sung Lyea Park
- Bioway, Inc., Chuncheon, Gangwon-do 24232, Republic of Korea
| | - Chi Woo Lee
- Bioway, Inc., Chuncheon, Gangwon-do 24232, Republic of Korea
| | - Jong Woo Kim
- Bioway, Inc., Chuncheon, Gangwon-do 24232, Republic of Korea.
| | - Young Hoon Jung
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Republic of Korea.
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Bang WY, Ban OH, Lee BS, Oh S, Park C, Park MK, Jung SK, Yang J, Jung YH. Genomic-, phenotypic-, and toxicity-based safety assessment and probiotic potency of Bacillus coagulans IDCC 1201 isolated from green malt. J Ind Microbiol Biotechnol 2021; 48:6255437. [PMID: 33904924 PMCID: PMC9113417 DOI: 10.1093/jimb/kuab026] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 03/08/2021] [Indexed: 11/18/2022]
Abstract
Probiotics are beneficial microorganisms, and the evaluation of their safety for human use in the food industry has become critical. This study examines the safety of Bacillus coagulans IDCC 1201 isolated from green malt by analyzing its genomic and phenotypic characteristics and determining its toxicity. The presence of antibiotic resistance and toxigenic genes and gene transferability were investigated using whole-genome analysis. The strain's hemolytic and enzyme activities, minimum inhibitory concentrations of antibiotics, and biogenic amine and D-lactate production were also examined. Furthermore, the principal properties of B. coagulans IDCC 1201 as probiotics, such as resistance to abiotic stress and intestinal adhesion, were studied. The whole-genome analysis demonstrated that B. coagulans IDCC 1201 had no antibiotic resistance or toxigenic genes; the strain was susceptible to the nine antibiotics proposed by the European Food Safety Authority. Moreover, this strain lacked hemolytic and β-glucuronidase activities. Additionally, it was confirmed that B. coagulans IDCC 1201 produced undesirable metabolites, including biogenic amines or D-lactate, at a safe level. Finally, the strain exhibited functional potential as a probiotic in terms of abiotic tolerance, such as bile tolerance and intestinal adhesion in in vitro experiments. In conclusion, B. coagulans IDCC 1201 can be considered as a safe probiotic with regard to human health.
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Affiliation(s)
- Won Yeong Bang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea.,Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do 17957, Republic of Korea
| | - O-Hyun Ban
- Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do 17957, Republic of Korea
| | - Bo Som Lee
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sangki Oh
- Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do 17957, Republic of Korea
| | - Chanmi Park
- Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do 17957, Republic of Korea
| | - Mi-Kyung Park
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sung Keun Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jungwoo Yang
- Ildong Bioscience, 17 Poseunggongdan-ro, Pyeongtaek-si, Gyeonggi-do 17957, Republic of Korea
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea.,Institute of Fermentation Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
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Hur KH, Kim SE, Ma SX, Lee BR, Ko YH, Seo JY, Kim SK, Kim YJ, Sung SJ, Lee Y, Jung YH, Lee YS, Lee SY, Jang CG. Methoxphenidine (MXP) induced abnormalities: Addictive and schizophrenia-related behaviours based on an imbalance of neurochemicals in the brain. Br J Pharmacol 2021; 178:3869-3887. [PMID: 33987827 DOI: 10.1111/bph.15528] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 04/22/2021] [Accepted: 05/03/2021] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND AND PURPOSE Methoxphenidine is a dissociative-based novel psychoactive designer drug. Although fatal accidents from methoxphenidine abuse have been reported, recreational use of the drug continues. We aim to provide scientific supportfor legal regulation of recreational abuse of methoxphenidine by demonstrating its the pharmacological action. EXPERIMENTAL APPROACH Addictive potential of methoxphenidine was examined using intravenous self-administration test with rats and conditioned place preference test with mice. Further, a series of behavioural tests (open field test, elevated plus maze test, novel object recognition test, social interaction test and tail suspension test) performed to assess whether methoxphenidine caused schizophrenia-related symptoms in mice. Additionally, neurotransmitter enzyme-linked immunosorbent assay and western blot were used to confirm methoxphenidine-induced neurochemical changes in specific brain regions related to abnormal behaviours. KEY RESULTS Methoxphenidine caused addictive behaviours via reinforcing and rewarding effects. Consistently, methoxphenidine induced over-activation of dopamine pathways in the nuclear accumbens, indicating activation of the brain reward circuit. Also, methoxphenidine caused all categories of schizophrenia-related symptoms, including positive symptoms (hyperactivity, impulsivity), negative symptoms (anxiety, social withdrawal, depression) and cognitive impairment. Consistently, methoxphenidine led to the disruption of the hippocampal-prefrontal cortex pathway that is considered to be pathological involved in schizophrenia. CONCLUSIONS AND IMPLICATIONS We demonastrate that methoxphenidine causes addictive and schizophrenia-like behaviours and induces neurochemical changes in brain regions associated with these behaviours. We propose that methoxphenidine could be used in developing useful animal disease models and that it also requires legal restrictions on its recreational use.
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Affiliation(s)
- Kwang-Hyun Hur
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Seong-Eon Kim
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Shi-Xun Ma
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Bo-Ram Lee
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Yong-Hyun Ko
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Jee-Yeon Seo
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Seon-Kyung Kim
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Young-Jung Kim
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Su-Jeong Sung
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Youyoung Lee
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Young Hoon Jung
- Organic and Medicinal Chemistry Laboratory, College of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Yong-Sup Lee
- Medicinal Chemistry Laboratory, Department of Pharmacy and Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Seok-Yong Lee
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Choon-Gon Jang
- Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
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Jang JH, So BR, Yeo HJ, Kang HJ, Kim MJ, Lee JJ, Jung SK, Jung YH. Preparation of cellulose microfibril (CMF) from Gelidium amansii and feasibility of CMF as a cosmetic ingredient. Carbohydr Polym 2021; 257:117569. [PMID: 33541629 DOI: 10.1016/j.carbpol.2020.117569] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/28/2020] [Accepted: 12/24/2020] [Indexed: 02/07/2023]
Abstract
Cellulose microfibrils (CMF) were successfully isolated from the red alga, Gelidium amansii. G. amansii was processed in two stages, microwave digestion and high-speed blending to remove agar and extract microfibrils, respectively. After pretreatment at 180 °C for 10 min, G. amansii containing 40.1 % glucan was microfibrillated through homogenization. Morphological analysis by SEM and FTIR, and analysis of the degree of fibrillation with water retention, sedimentation, and CtCBD3 protein binding of G. amansii-derived CMF were investigated. Functional analysis of CMF showed suppression of cyclooxygenase-2 expression in both in vitro and in vivo experiments. Additionally, suppression was evident in the: i) epidermal thickness of mice skin; ii) presence of proinflammatory cytokines; and iii) inhibition of JNK1/2 and p38 phosphorylation in human keratinocyte HaCaT cells. Such activity demonstrates its anti-inflammatory properties. The results in this study showed the possibility of using CMF derived from a red alga as an anti-inflammation material.
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Affiliation(s)
- Jeong Hwa Jang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Bo Ram So
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Hyeon Jin Yeo
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Hye Jee Kang
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Min Jeong Kim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Jeong Jae Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Sung Keun Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea; Institute of Agricultural Science & Technology, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Young Hoon Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea; Institute of Fermentation Biotechnology, Kyungpook National University, Daegu, 41566, Republic of Korea.
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Kim K, Kang JK, Jung YH, Lee SB, Rametta R, Dongiovanni P, Valenti L, Pajvani UB. Adipocyte PHLPP2 inhibition prevents obesity-induced fatty liver. Nat Commun 2021; 12:1822. [PMID: 33758172 PMCID: PMC7988046 DOI: 10.1038/s41467-021-22106-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 02/25/2021] [Indexed: 01/22/2023] Open
Abstract
Increased adiposity confers risk for systemic insulin resistance and type 2 diabetes (T2D), but mechanisms underlying this pathogenic inter-organ crosstalk are incompletely understood. We find PHLPP2 (PH domain and leucine rich repeat protein phosphatase 2), recently identified as the Akt Ser473 phosphatase, to be increased in adipocytes from obese mice. To identify the functional consequence of increased adipocyte PHLPP2 in obese mice, we generated adipocyte-specific PHLPP2 knockout (A-PHLPP2) mice. A-PHLPP2 mice show normal adiposity and glucose metabolism when fed a normal chow diet, but reduced adiposity and improved whole-body glucose tolerance as compared to Cre- controls with high-fat diet (HFD) feeding. Notably, HFD-fed A-PHLPP2 mice show increased HSL phosphorylation, leading to increased lipolysis in vitro and in vivo. Mobilized adipocyte fatty acids are oxidized, leading to increased peroxisome proliferator-activated receptor alpha (PPARα)-dependent adiponectin secretion, which in turn increases hepatic fatty acid oxidation to ameliorate obesity-induced fatty liver. Consistently, adipose PHLPP2 expression is negatively correlated with serum adiponectin levels in obese humans. Overall, these data implicate an adipocyte PHLPP2-HSL-PPARα signaling axis to regulate systemic glucose and lipid homeostasis, and suggest that excess adipocyte PHLPP2 explains decreased adiponectin secretion and downstream metabolic consequence in obesity. Obesity can be associated with an increased risk of metabolic complications. Here, the authors show that adipocyte-specific ablation of the phosphatase PHLPP2 improves glucose homeostasis in high-fat diet fed obese mice, and that this may be due at least in part to PHLPP2 dephosphorylation of HSL.
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Affiliation(s)
- KyeongJin Kim
- Department of Medicine, Columbia University, New York, NY, USA. .,Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, South Korea. .,Department of Biomedical Science, Program in Biomedical Science and Engineering, Inha University, Incheon, Republic of Korea.
| | - Jin Ku Kang
- Department of Medicine, Columbia University, New York, NY, USA
| | - Young Hoon Jung
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon, South Korea.,Department of Biomedical Science, Program in Biomedical Science and Engineering, Inha University, Incheon, Republic of Korea
| | - Sang Bae Lee
- Division of Life Sciences, Jeonbuk National University, Jeonju, Republic of Korea
| | - Raffaela Rametta
- Internal Medicine and Metabolic Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, DEPT, Università degli Studi di Milano, Milano, Italy
| | - Paola Dongiovanni
- Internal Medicine and Metabolic Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, DEPT, Università degli Studi di Milano, Milano, Italy
| | - Luca Valenti
- Internal Medicine and Metabolic Diseases, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, DEPT, Università degli Studi di Milano, Milano, Italy
| | - Utpal B Pajvani
- Department of Medicine, Columbia University, New York, NY, USA.
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Lee BS, Ban OH, Bang WY, Chae SA, Oh S, Park C, Lee M, Kim SJ, Yang J, Jung YH. Safety assessment of Lactobacillus reuteri IDCC 3701 based on phenotypic and genomic analysis. ANN MICROBIOL 2021. [DOI: 10.1186/s13213-021-01622-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Purpose
Lactobacillus reuteri is one of the most largely studied human-commensal bacteria and widely used as a form of probiotics. Safety of probiotics has become increasingly important for human consumption due to increasing health-concerns in food industry. In this study, the safety of L. reuteri IDCC 3701 isolated from human breast milk was thoroughly investigated.
Methods
Whole-genome sequence analysis was performed to identify antibiotic resistance and toxigenicity of L. reuteri IDCC 3701. Phenotypic analysis such as minimal inhibitory concentration, β-hemolysis, extracellular enzyme activity, and the production of biological amines and L/D-lactate, was investigated. Finally, acute oral toxicity test was performed to access L. reuteri IDCC 3701 safety.
Results
Although multiple resistances to gentamicin and kanamycin were observed in L. reuteri IDCC 3701, it was revealed that these resistances are intrinsic and not transferable through whole-genome analysis. In addition, various phenotypic analysis concerning hemolysis, enzyme activity, and D-lactate production did not show any negative results. Although L. reuteri IDCC 3701 harbors a histidine decarboxylase gene, no biogenic amines were detected. Finally, L. reuteri IDCC 3701 exhibited no evidence of acute toxicity according to an in vivo study.
Conclusion
Our findings demonstrate that L. reuteri IDCC 3701 is considered to be safe for human consumption as probiotics based on the in silico, in vitro and in vivo studies.
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Shin M, Ban OH, Jung YH, Yang J, Kim Y. Genomic characterization and probiotic potential of Lactobacillus casei IDCC 3451 isolated from infant faeces. Lett Appl Microbiol 2021; 72:578-588. [PMID: 33421164 DOI: 10.1111/lam.13449] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/11/2020] [Accepted: 12/28/2020] [Indexed: 01/02/2023]
Abstract
Probiotics play an important role in health benefits on the host. However, they also possess potentials for infectivity or in situ toxin production; thus, requiring a comprehensive assessment of their safety. In this study, we report genomic characteristics of a newly isolated Lactobacillus casei IDCC 3451 from infant faeces. Phenotypic assays based on enzyme activities and carbohydrate fermentation profiles represented metabolic features of the strain. Safety evaluation for antimicrobial resistance, biogenic amines production and cytotoxicity to a murine mouse model suggested its safe use as a probiotic strain. Our findings on the genetic background of L. casei IDCC 3451 and its potential features provide a promising functional and safe probiotic strain for the human consumption.
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Affiliation(s)
- M Shin
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
| | - O-H Ban
- Ildong Bioscience, Gyeonggi-do, Republic of Korea
| | - Y H Jung
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, Republic of Korea
| | - J Yang
- Ildong Bioscience, Gyeonggi-do, Republic of Korea
| | - Y Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
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