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Kang M, Kang M, Yoo J, Lee J, Lee S, Yun B, Song M, Kim JM, Kim HW, Yang J, Kim Y, Oh S. Dietary supplementation with Lacticaseibacillus rhamnosus IDCC3201 alleviates sarcopenia by modulating the gut microbiota and metabolites in dexamethasone-induced models. Food Funct 2024; 15:4936-4953. [PMID: 38602003 DOI: 10.1039/d3fo05420a] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Probiotics can exert direct or indirect influences on various aspects of health claims by altering the composition of the gut microbiome and producing bioactive metabolites. The aim of this study was to examine the effect of Lacticaseibacillus rhamnosus IDCC3201 on skeletal muscle atrophy in dexamethasone-induced C2C12 cells and a mouse animal model. Dexamethasone treatment significantly reduced C2C12 muscle cell viability, myotube diameter, and levels of muscle atrophic markers (Atrogin-1 and MuRF-1). These effects were alleviated by conditioned media (CM) and cell extract (EX) derived from L. rhamnosus IDCC3201. In addition, we assessed the in vivo therapeutic effect of L. rhamnosus IDCC3201 in a mouse model of dexamethasone (DEX)-induced muscle atrophy. Supplementation with IDCC3201 resulted in significant enhancements in body composition, particularly in lean mass, muscle strength, and myofibril size, in DEX-induced muscle atrophy mice. In comparison to the DEX-treatment group, the normal and DEX + L. rhamnosus IDCC3201 groups showed a higher transcriptional level of myosin heavy chain family genes (MHC1, MHC1b, MHC2A, 2bB, and 2X) and a reduction in atrophic muscle makers. These analyses revealed that L. rhamnosus IDCC3201 supplementation led to increased production of branched-chain amino acids (BCAAs) and improved the Allobaculum genus within the gut microbiota of muscle atrophy-induced groups. Taken together, our findings suggest that L. rhamnosus IDCC3201 represents a promising dietary supplement with the potential to alleviate sarcopenia by modulating the gut microbiome and metabolites.
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Affiliation(s)
- Minkyoung Kang
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| | - Minji Kang
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| | - Jiseon Yoo
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| | - Juyeon Lee
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| | - Sujeong Lee
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
| | - Bohyun Yun
- Honam National Institute of Biological Resources, Mokpo 58762, Republic of Korea
| | - Minho Song
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jun-Mo Kim
- Department of Animal Science and Technology, Chung-Ang University, Anseong 17546, Gyeonggi-do, Republic of Korea
| | - Hyung Wook Kim
- College of Life Sciences, Sejong University, Seoul 05006, Republic of Korea
| | - Jungwoo Yang
- Department of Microbiology, College of Medicine, Dongguk University, Gyeongju, 38066, Republic of Korea
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Sangnam Oh
- Department of Food and Nutrition, Jeonju University, Jeonju 55069, Republic of Korea
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Benson EJ, Aronowitz DI, Forti RM, Lafontant A, Ranieri NR, Starr JP, Melchior RW, Lewis A, Jahnavi J, Breimann J, Yun B, Laurent GH, Lynch JM, White BR, Gaynor JW, Licht DJ, Yodh AG, Kilbaugh TJ, Mavroudis CD, Baker WB, Ko TS. Diffuse Optical Monitoring of Cerebral Hemodynamics and Oxygen Metabolism during and after Cardiopulmonary Bypass: Hematocrit Correction and Neurological Vulnerability. Metabolites 2023; 13:1153. [PMID: 37999249 PMCID: PMC10672802 DOI: 10.3390/metabo13111153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/07/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023] Open
Abstract
Cardiopulmonary bypass (CPB) provides cerebral oxygenation and blood flow (CBF) during neonatal congenital heart surgery, but the impacts of CPB on brain oxygen supply and metabolic demands are generally unknown. To elucidate this physiology, we used diffuse correlation spectroscopy and frequency-domain diffuse optical spectroscopy to continuously measure CBF, oxygen extraction fraction (OEF), and oxygen metabolism (CMRO2) in 27 neonatal swine before, during, and up to 24 h after CPB. Concurrently, we sampled cerebral microdialysis biomarkers of metabolic distress (lactate-pyruvate ratio) and injury (glycerol). We applied a novel theoretical approach to correct for hematocrit variation during optical quantification of CBF in vivo. Without correction, a mean (95% CI) +53% (42, 63) increase in hematocrit resulted in a physiologically improbable +58% (27, 90) increase in CMRO2 relative to baseline at CPB initiation; following correction, CMRO2 did not differ from baseline at this timepoint. After CPB initiation, OEF increased but CBF and CMRO2 decreased with CPB time; these temporal trends persisted for 0-8 h following CPB and coincided with a 48% (7, 90) elevation of glycerol. The temporal trends and glycerol elevation resolved by 8-24 h. The hematocrit correction improved quantification of cerebral physiologic trends that precede and coincide with neurological injury following CPB.
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Affiliation(s)
- Emilie J. Benson
- Department of Physics & Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA; (E.J.B.); (A.G.Y.)
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Danielle I. Aronowitz
- Division of Cardiothoracic Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (D.I.A.); (J.W.G.); (C.D.M.)
| | - Rodrigo M. Forti
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Alec Lafontant
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Nicolina R. Ranieri
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Jonathan P. Starr
- Department of Anesthesiology and Critical Care Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (J.P.S.); (T.J.K.)
| | - Richard W. Melchior
- Department of Perfusion Services, Cardiac Center, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA;
| | - Alistair Lewis
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jharna Jahnavi
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Jake Breimann
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Bohyun Yun
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Gerard H. Laurent
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Jennifer M. Lynch
- Division of Cardiothoracic Anesthesiology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA;
| | - Brian R. White
- Division of Cardiology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - J. William Gaynor
- Division of Cardiothoracic Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (D.I.A.); (J.W.G.); (C.D.M.)
| | - Daniel J. Licht
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Arjun G. Yodh
- Department of Physics & Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA; (E.J.B.); (A.G.Y.)
| | - Todd J. Kilbaugh
- Department of Anesthesiology and Critical Care Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (J.P.S.); (T.J.K.)
| | - Constantine D. Mavroudis
- Division of Cardiothoracic Surgery, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (D.I.A.); (J.W.G.); (C.D.M.)
| | - Wesley B. Baker
- Division of Neurology, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (R.M.F.); (A.L.); (N.R.R.); (J.J.); (J.B.); (B.Y.); (G.H.L.); (D.J.L.); (W.B.B.)
| | - Tiffany S. Ko
- Department of Anesthesiology and Critical Care Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA 19104, USA; (J.P.S.); (T.J.K.)
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Lee J, Kang M, Yoo J, Lee S, Kang M, Yun B, Kim JN, Moon H, Chung Y, Oh S. Lactobacillus rhamnosus JY02 Ameliorates Sarcopenia by Anti-Atrophic Effects in a Dexamethasone-Induced Cellular and Murine Model. J Microbiol Biotechnol 2023; 33:1-11. [PMID: 36998149 PMCID: PMC10394339 DOI: 10.4014/jmb.2303.03001] [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: 03/01/2023] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 04/01/2023]
Abstract
Sarcopenia is defined as loss of muscle mass and strength due to aging. Recent studies show that sarcopenia may improve via the gut-muscle axis, suggesting that gut health may affect muscle phenotypes. In this study, we aimed to investigate the ability of Lactobacillus rhamnosus JY02 as a probiotic strain isolated from kimchi to alleviate sarcopenia. L. rhamnosus JY02-conditioned medium (CM) reduced dexamethasone (DEX)-induced myotube diameter atrophy and expression of muscle degradation markers (MuRF1 and atrogin-1) in C2C12 cells. The amelioration of sarcopenia was investigated by measuring body composition (lean mass), hand grip strength, myofibril size (using histological analysis), and mRNA and protein expression of muscle-related factors in a DEXinduced mouse model. The results of these analyses showed that L. rhamnosus JY02 supplementation promoted the production of muscle-enhancement markers (MHC Iβ, MHC IIα, and Myo-D) and reduced both the production of muscle degradation markers and the symptoms of muscle atrophy (loss of lean mass and muscle strength). We also found decreased levels of proinflammatory cytokines (IL-6, IFN- γ) and increased levels of anti-inflammatory cytokines (IL-10) in the serum of DEX+JY02-administered mice compared to those in DEX-treated mice. Overall, these results suggest that L. rhamnosus JY02 is a potent probiotic supplement that prevents sarcopenia by suppressing muscle atrophy.
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Affiliation(s)
- Juyeon Lee
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Republic of Korea
| | - Minkyoung Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Republic of Korea
| | - Jiseon Yoo
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Republic of Korea
| | - Sujeong Lee
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Republic of Korea
| | - Minji Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Republic of Korea
| | - Bohyun Yun
- Division of Practical Application, Honam National Institute of Biological Resources, Mokpo 58762, Republic of Korea
| | - Jong Nam Kim
- Division of Practical Application, Honam National Institute of Biological Resources, Mokpo 58762, Republic of Korea
| | - Hyoungsun Moon
- Division of Practical Application, Honam National Institute of Biological Resources, Mokpo 58762, Republic of Korea
| | - Yihyung Chung
- Department of Food Science and Nutrition, Dongseo University, Busan 47011, Republic of Korea
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Republic of Korea
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4
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Yun B, Ryu S, Kang M, Lee J, Yoo J, Kim Y, Oh S. Probiotic Lacticaseibacillus rhamnosus GG Increased Longevity and Resistance Against Foodborne Pathogens in Caenorhabditis elegans by Regulating MicroRNA miR-34. Front Cell Infect Microbiol 2022; 11:819328. [PMID: 35127565 PMCID: PMC8807481 DOI: 10.3389/fcimb.2021.819328] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 12/20/2021] [Indexed: 12/11/2022] Open
Abstract
In this study, we investigated the relation of probiotic activity of Lacticaseibacillus rhamnosus strain GG (LGG) and expression of microRNA to immune response and longevity in Caenorhabditis elegans host model. First, we evaluated the survival rate of C. elegans due to LGG exposure and bacterial colonization in the intestine. Next, the expression of mRNA and miRNA was analyzed in C. elegans exposure to LGG for 24 h using microarray. After exposure to LGG to C. elegans, colonized LGG was observed in the intestines of C. elegans and induced to extend lifespan. Moreover, persistent LGG in the intestine significantly enhanced the resistance of C. elegans exposed to both pathogenic bacteria and prolonged the lifespan of C. elegans. Transcriptome analysis indicated that LGG affected the expression levels of genes related to the innate immune response and upregulated the abundance of genes in multiple pathways of C. elegans, including Wnt signaling, TGF-beta signaling and mitogen-activated protein kinase (MAPK) pathways. In addition, qRT-PCR analysis confirmed that the expression of antibacterial genes was increased by LGG. Moreover, as the expression of microRNA miR-34 and immune-related pathways increased by exposure to LGG, the lifespan of C. elegans increased. However, in the miR-34 mutant C. elegans, the lifespan by LGG did not increase, so it was determined that miR-34 indirectly affects immune-related pathways. There was no significant difference in the expression of PMK-1 for LGG exposure in miR-34 mutants, suggesting that miR-34 may regulate PMK-1. In conclusion, we suggest that exposure of LGG to C. elegans enhances lifespan and resistance to food-borne pathogen infection by stimulating miR-34 and indirectly promoting PMK-1 activity.
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Affiliation(s)
- Bohyun Yun
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju, South Korea
| | - Sangdon Ryu
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, South Korea
| | - Minkyoung Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju, South Korea
| | - Juyeon Lee
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju, South Korea
| | - Jiseon Yoo
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju, South Korea
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, South Korea
- *Correspondence: Younghoon Kim, ; Sangnam Oh,
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju, South Korea
- *Correspondence: Younghoon Kim, ; Sangnam Oh,
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Yoo J, Lee J, Zhang M, Mun D, Kang M, Yun B, Kim YA, Kim S, Oh S. Enhanced γ-aminobutyric acid and sialic acid in fermented deer antler
velvet and immune promoting effects. J Anim Sci Technol 2021; 64:166-182. [PMID: 35174351 PMCID: PMC8819328 DOI: 10.5187/jast.2021.e132] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 11/30/2021] [Accepted: 11/30/2021] [Indexed: 11/20/2022]
Abstract
Deer antler velvet is widely used in traditional medicine for its anti-aging,
antioxidant, and immunity-enhancing effects. However, few studies have reported
on the discovery of probiotic strains for deer antler fermentation to increase
functional ingredient absorption. This study evaluated the ability of probiotic
lactic acid bacteria to enhance the concentrations of bioactive molecules (e.g.,
sialic acid and gamma-aminobutyric acid [GABA]) in extracts of deer antler
velvet. Seventeen strains of Lactobacillus spp. that were
isolated from kimchi and infant feces, including L. sakei,
L. rhamnosus, L. brevis, and L.
plantarum, and those that improved the life span of
Caenorhabditis elegans were selected for evaluation. Of the
17 strains, 2 (L. rhamnosus LFR20-004 and L.
sakei LFR20-007) were selected based on data showing that these
strains increased both the sialic acid and GABA contents of deer antler extract
after fermentation for 2 d and significantly improved the life span of
C. elegans. Co-fermentation with both strains further
increased the concentrations of sialic acid, GABA, and metabolites such as
short-chain fatty acids and amino acids. We evaluated the biological effects of
the fermented antler velvet (FAV) on the antibacterial immune response in
C. elegans by assessing worm survival after pathogen
infection. The survival of the C. elegans conditioned with FAV
for 24 h was significantly higher compared with that of the control worm group
fed only normal feed (non-pathogenic E. coli OP50) exposed to
E. coli O157:H7, Salmonella typhi, and
Listeria monocytogenes. To evaluate the protective effects
of FAV on immune response, cyclophosphamide (Cy), an immune-suppressing agent
was treated to in vitro and in vivo. We found
that FAV significantly restored viability of mice splenocytes and immune
promoting-related cytokines (interleukin [IL]-6, IL-10, inducible nitric oxide
synthase [iNOS], interferon [IFN]-γ, and tumor necrosis factor
[TNF]-α) were activated compared to non-fermented deer antlers. This
finding indicated the protective effect of FAV against Cy-induced cell death and
immunosuppressed mice. Taken together, our study suggests that immune-promoting
antler velvet can be produced through fermentation using L.
rhamnosus LFR20-004 and L. sakei LFR20-007.
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Affiliation(s)
- Jiseon Yoo
- Department of Functional Food and
Biotechnology, Jeonju University, Jeonju 55069 Korea
| | - Juyeon Lee
- Department of Functional Food and
Biotechnology, Jeonju University, Jeonju 55069 Korea
| | - Ming Zhang
- Department of Environment Science &
Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - Daye Mun
- Department of Agricultural Biotechnology
and Research Institute of Agriculture and Life Science, Seoul National
University, Seoul 08826, Korea
| | - Minkyoung Kang
- Department of Functional Food and
Biotechnology, Jeonju University, Jeonju 55069 Korea
| | - Bohyun Yun
- Department of Functional Food and
Biotechnology, Jeonju University, Jeonju 55069 Korea
| | - Yong-An Kim
- Department of Animal Science, Chonbuk
National University, Jeonju 54896, Korea
| | - Sooah Kim
- Department of Environment Science &
Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - Sangnam Oh
- Department of Functional Food and
Biotechnology, Jeonju University, Jeonju 55069 Korea
- Corresponding author: Sangnam Oh, Department of
Functional Food and Biotechnology, Jeonju University, Jeonju 55069 Korea. Tel:
+82-63-220-3109, E-mail:
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Ryu S, Park WS, Yun B, Shin M, Go GW, Kim JN, Oh S, Kim Y. Diversity and characteristics of raw milk microbiota from Korean dairy farms using metagenomic and culturomic analysis. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108160] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Kang M, Choi HJ, Yun B, Lee J, Yoo J, Yang HJ, Jeong DY, Kim Y, Oh S. Bacillus amyloliquefaciens SCGB1 Alleviates Dextran Sulfate Sodium-Induced Colitis in Mice Through Immune Regulation. J Med Food 2021; 24:709-719. [PMID: 34280033 DOI: 10.1089/jmf.2021.k.0044] [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] [Indexed: 01/18/2023] Open
Abstract
Probiotics, as living microorganisms, exert health benefits to the host by alleviating excess inflammation through modulating the immune system and establishing intestinal homeostasis. In this study, we evaluated the probiotic characteristics and inflammation alleviatory effects of Bacillus amyloliquefaciens isolated from traditional Korean fermented foods. The strains withstood the acidic environment of the digestive process, extended the lifespan of Caenorhabditis elegans, and enhanced pmk-1 expression. However, only B. amyloliquefaciens SCGB1 could attach to C. elegans in the intestines, which enhanced their survival upon exposure to Escherichia coli O157:H7. We also investigated the anti-inflammatory effect of SCGB1 using the RAW264.7 macrophage stimulated with lipopolysaccharide. The strain treatment enhanced anti-inflammatory cytokine interleukin (IL)-10 secretion and downregulated proinflammatory cytokine IL-6 expression in vitro. Next, we used a dextran sulfate sodium (DSS)-induced colitis mouse model to investigate whether SCGB1 can ameliorate gut inflammation in vivo. Compared to those in the DSS-induced mice, histological damage and IL-6 cytokine levels were significantly reduced in SCGB1-fed mice. These results suggest that B. amyloliquefaciens SCGB1 as potential probiotics may have health-promoting effects by reduction of inflammatory responses.
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Affiliation(s)
- Minkyoung Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju, Korea
| | - Hye Jin Choi
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Korea
| | - Bohyun Yun
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju, Korea
| | - Juyeon Lee
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju, Korea
| | - Jiseon Yoo
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju, Korea
| | - Hee-Jong Yang
- Microbial Institute for Fermentation Industry, Sunchang, Jeonbuk, South Korea
| | - Do-Youn Jeong
- Microbial Institute for Fermentation Industry, Sunchang, Jeonbuk, South Korea
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Korea
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju, Korea
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Yun B, Kim Y, Park DJ, Oh S. Comparative analysis of dietary exosome-derived microRNAs from human, bovine and caprine colostrum and mature milk. J Anim Sci Technol 2021; 63:593-602. [PMID: 34189507 PMCID: PMC8203993 DOI: 10.5187/jast.2021.e39] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 01/21/2021] [Accepted: 01/25/2021] [Indexed: 12/12/2022]
Abstract
Mammalian milk including microRNAs (miRNAs) as a novel class of noncoding RNAs,
that can be transferred to infants and it plays on a critical role in biological
functions such as immune regulation and development. However, the origin and
functional importance of milk-derived miRNAs are still undetermined. This study
applied RNA sequencing to explore the featured profiles of miRNA expression in
colostrum and mature milk-originated exosomes from human, bovine, and caprine
milk. These dietary exosome-derived miRNAs are highly conserved in human, bovine
and caprine milk. Interestingly, abundant miRNAs expressed in human milk are
similarly conserved across species. In addition, we confirmed that
immune-related miRNAs (miR-30a-5p, miR-22-3p, and miR-26a) are commonly observed
in the colostrum and mature milk of cows and caprines as well as humans. Our
results provide new insights and resources for investigating the functionality
of immune-associated miRNAs and evaluating physiological and biological
condition in human, bovine and caprine milk as biomarkers.
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Affiliation(s)
- Bohyun Yun
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
| | | | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
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Kim H, Shin M, Ryu S, Yun B, Oh S, Park DJ, Kim Y. Evaluation of Probiotic Characteristics of Newly Isolated Lactic Acid Bacteria from Dry-Aged Hanwoo Beef. Food Sci Anim Resour 2021; 41:468-480. [PMID: 34017955 PMCID: PMC8112308 DOI: 10.5851/kosfa.2021.e11] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 01/13/2021] [Revised: 02/26/2021] [Accepted: 03/06/2021] [Indexed: 11/09/2022] Open
Abstract
Dry aging is a traditional method that improves meat quality, and diverse
microbial communities are changed during the process. Lactic acid bacteria (LAB)
are widely present in fermented foods and has many beneficial effects, such as
immune enhancement and maintenance of intestinal homeostasis. In this study, we
conducted metagenomic analysis to evaluate the changes in the microbial
composition of dry-aged beef. We found that lactic acid bacterial strains were
abundant in dry-aged beef including Lactobacillus sakei and
Enterococcus faecalis. We investigated their abilities in
acid and bile tolerance, adhesion to the host, antibiotic resistance, and
antimicrobial activity as potential probiotics, confirming that L.
sakei and E. faecalis strains had remarkable
capability as probiotics. The isolates from dry-aged beef showed at least
70% survival under acidic conditions in addition to an increase in the
survival level under bile conditions. Antibiotic susceptibility and
antibacterial activity assays further verified their effectiveness in inhibiting
all pathogenic bacteria tested, and most of them had low resistance to
antibiotics. Finally, we used the Caenorhabditis elegans model
to confirm their life extension and influence on host resistance. In the model
system, 12D26 and 20D48 strains had great abilities to extend the nematode
lifespan and to improve host resistance, respectively. These results suggest the
potential use of newly isolated LAB strains from dry-aged beef as probiotic
candidates for production of fermented meat.
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Affiliation(s)
- Hayoung Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
| | - Minhye Shin
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
| | - Sangdon Ryu
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
| | - Bohyun Yun
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
| | | | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
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10
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Ryu S, Shin M, Yun B, Lee W, Choi H, Kang M, Oh S, Kim Y. Bacterial Quality, Prevalence of Pathogens, and Molecular Characterization of Biofilm-Producing Staphylococcus aureus from Korean Dairy Farm Environments. Animals (Basel) 2021; 11:1306. [PMID: 33946614 PMCID: PMC8147196 DOI: 10.3390/ani11051306] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/23/2021] [Accepted: 04/29/2021] [Indexed: 11/16/2022] Open
Abstract
Raw milk acts as a mediator of major foodborne pathogenic bacterial infections. However, the sources of pathogens that contaminate milk are often unclear. This study assessed the prevalence of sanitary quality-indicating bacteria (total aerobic bacteria, psychrotrophic bacteria, coliform, and yeast/molds), including seven foodborne pathogens, in a dairy farm environment and processing plant in Korea. The microbiological analysis showed that a few sites, such as vat bottoms, room floors, drain holes, and niches, showed high microbial loads in most dairy farms. Based on quantitative microbial tests, Bacillus cereus was detected in three farms and Staphylococcus aureus was detected in only one farm. Among them, S. aureus JDFM SA01 isolated from a milk filter showed strong biofilm formation and toxicity to the host Caenorhabditis elegans. Subsequently, RNA-seq was performed to characterize the biofilm formation ability of S. aureus JDFM SA01. In biofilms, the significant upregulation of genes encoding microbial surface components and recognizing adhesive matrix molecules promotes adhesion might explain the increased viability and biomass of biofilms. This study provided insight into the prevalence of pathogenic bacteria and microbial contamination levels across dairy farms.
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Affiliation(s)
- Sangdon Ryu
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (S.R.); (M.S.); (W.L.); (H.C.)
| | - Minhye Shin
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (S.R.); (M.S.); (W.L.); (H.C.)
| | - Bohyun Yun
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea; (B.Y.); (M.K.)
| | - Woongji Lee
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (S.R.); (M.S.); (W.L.); (H.C.)
| | - Hyejin Choi
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (S.R.); (M.S.); (W.L.); (H.C.)
| | - Minkyoung Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea; (B.Y.); (M.K.)
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea; (B.Y.); (M.K.)
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (S.R.); (M.S.); (W.L.); (H.C.)
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11
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Choi HJ, Shin D, Shin M, Yun B, Kang M, Yang HJ, Jeong DY, Kim Y, Oh S. Comparative Genomic and Functional Evaluations of Bacillus subtilis Newly Isolated from Korean Traditional Fermented Foods. Foods 2020; 9:E1805. [PMID: 33291832 PMCID: PMC7762004 DOI: 10.3390/foods9121805] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 10/12/2020] [Revised: 11/20/2020] [Accepted: 11/28/2020] [Indexed: 01/28/2023] Open
Abstract
Many fermented foods are known to have beneficial effects on human and animal health, offering anti-aging and immunomodulatory benefits to host. Microorganisms contained in the fermented foods are known to provide metabolic products possibly improving host health. However, despite of a number of studies on the functional effects of the fermented foods, isolation and identification of the effective bacterial strains in the products are still in progress. The objective of this study was to isolate candidate functional strains in various Korean traditional fermented foods, including ganjang, gochujang, doenjang, and jeotgal, and evaluate their beneficial effects on the host, using Caenorhabditis elegans as a surrogate animal model. Among the 30 strains isolated, five Bacillus spp. were selected that increased the expression level of pmk-1, an innate immune gene of C. elegans. These strains extended the nematode lifespan and showed intestinal adhesion to the host. Based on the bioinformatic analyses of whole genome sequences and pangenomes, the five strains of Bacillus subtilis were genetically different from the strains found in East Asian countries and previously reported strains isolated from Korean fermented foods. Our findings suggest that the newly isolated B. subtilis strains can be a good candidate for probiotic with further in-depth investigation on health benefits and safety.
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Affiliation(s)
- Hye Jin Choi
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (H.J.C.); (M.S.)
| | - Donghyun Shin
- Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju 54896, Korea;
| | - Minhye Shin
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (H.J.C.); (M.S.)
| | - Bohyun Yun
- Department of Animal Science and Institute of Milk Genomics, Jeonbuk National University, Jeonju 54896, Korea;
| | - Minkyoung Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea;
| | - Hee-Jong Yang
- Microbial Institute for Fermentation Industry, Sunchang, Jeonbuk 56048, Korea; (H.-J.Y.); (D.-Y.J.)
| | - Do-Youn Jeong
- Microbial Institute for Fermentation Industry, Sunchang, Jeonbuk 56048, Korea; (H.-J.Y.); (D.-Y.J.)
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea; (H.J.C.); (M.S.)
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea;
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12
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Yun B, Maburutse BE, Kang M, Park MR, Park DJ, Kim Y, Oh S. Short communication: Dietary bovine milk-derived exosomes improve bone health in an osteoporosis-induced mouse model. J Dairy Sci 2020; 103:7752-7760. [PMID: 32622594 DOI: 10.3168/jds.2019-17501] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [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: 08/27/2019] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
Abstract
Osteoporosis is a systemic skeletal disease characterized by low bone mass and micro-architectural deterioration of bone tissue, with a consequent increase in bone fragility and fracture susceptibility. In an aged society with increased life expectancy, the incidence rate of osteoporosis is also rapidly increasing. Inadequate nutrition may negatively influence bone metabolism. Recently, many studies have investigated the functionality of milk-derived exosomes, which play important roles in cell-to-cell communication. However, there are few reports of how milk-derived exosomes influence osteoblast proliferation and differentiation. Here, we determined whether bovine colostrum-derived exosomes promote anti-osteoporosis in vitro and in vivo. Tartrate-resistant acid phosphatase-stained cells were significantly inhibited in Raw264.7 cells treated with exosomes, indicating reduced osteoclast differentiation. We induced osteoporosis in mice using glucocorticoid pellets after orally administering exosomes for 2 mo. Interestingly, the bone mineral density of exosome-fed mouse groups was significantly improved compared with the glucocorticoid-induced osteoporosis group without exosome treatment. In addition, Lactobacillus were decreased in the gut microbiota community of osteoporosis-induced mice, but the gut microbiota community composition was effectively restored by exosome intake. Taken together, we propose that exosomes isolated from bovine colostrum could be a potential candidate for osteoporosis prevention, bone remodeling improvement, and inhibition of bone resorption. To our knowledge, this is the first time that a protective effect of milk exosomes against osteoporosis has been demonstrated in vivo. Our results strongly suggest that bovine colostrum exosomes might be used as a prophylaxis to prevent the onset of osteoporosis. Indeed, our results offer promising alternative strategies in the nutritional management of age-related bone complications.
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Affiliation(s)
- B Yun
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - B E Maburutse
- Department of Animal Sciences and Health, Marondera University of Agricultural Sciences and Health, PO Box 35, Marondera, Zimbabwe
| | - M Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - M R Park
- Department of Pharmacology and System Physiology, University of Cincinnati, OH 45267
| | - D J Park
- Korea Food Research Institute, Jeollabuk-do 55365, Korea
| | - Y Kim
- Department of Agricultural Biotechnology and Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea.
| | - S Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea.
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13
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Ryu S, Shin D, Heo J, Jeong SY, Jeong DY, Yun B, Kang M, Kim Y, Oh S. Complete chromosome and plasmid sequences of Staphylococcus aureus strain JDFM SA01, isolated from a milk filter in Korean dairy farm. J Anim Sci Technol 2020; 62:423-426. [PMID: 32568255 PMCID: PMC7288233 DOI: 10.5187/jast.2020.62.3.423] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 03/19/2020] [Accepted: 03/19/2020] [Indexed: 11/20/2022]
Abstract
Staphylococcus aureus is a significant pathogen that can source
a variety of illness worldwide. In this announcement, we report here the
complete genome sequence of S. aureus strain JDFM SA01,
isolated from a milk filter collected from Korean dairy farm. The final complete
genome assembly consists of one circular chromosome (2,748,925 bp) with an
overall GC content of 32.9% and one circular plasmid sequence (24,655 bp) with a
GC content of 28.7%.
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Affiliation(s)
- Sangdon Ryu
- Department of Animal Science and Institute of Milk Genomics, Jeonbuk National University, Jeonju 54896, Korea
| | - Donghyun Shin
- The Animal Molecular Genetics and Breeding Center, Jeonbuk National University, Jeonju 54896, Korea
| | - Jaeyoung Heo
- International Agricultural Development and Cooperation Center, Jeonbuk National University, Jeouju 54896, Korea
| | - Seong-Yeop Jeong
- Microbial Institute for Fermentation Industry, Sunchang 56048, Korea
| | - Do-Youn Jeong
- Microbial Institute for Fermentation Industry, Sunchang 56048, Korea
| | - Bohyun Yun
- Department of Animal Science and Institute of Milk Genomics, Jeonbuk National University, Jeonju 54896, Korea
| | - Minkyoung Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
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14
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Yun B, Yoo JY, Park MR, Ryu S, Lee WJ, Choi HJ, Kang MK, Kim Y, Oh S. Ingestion of Gouda Cheese Ameliorates the Chronic Unpredictable Mild Stress in Mice. Food Sci Anim Resour 2020; 40:145-153. [PMID: 31970338 PMCID: PMC6957452 DOI: 10.5851/kosfa.2019.e81] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 08/27/2019] [Revised: 10/15/2019] [Accepted: 10/30/2019] [Indexed: 12/22/2022] Open
Abstract
Depression is a kind of mood disorder characterized by decline in motivation,
interest, attention, mental activity, and appetite. Although depression is
caused by a variety of causes, including genetic, endocrine and environmental
stress, mild depression has been reported to improve with diet. Therefore,
various type of food sources including functional and nutritional supplement are
required to treat the depressive patients. Cheese contains bioactive peptides
that have beneficial effects on host health. In particular, Jersey milk has been
reported to contain higher solids than does Holstein milk. This study
investigated the effects of Gouda cheese from Jersey and Holstein milk on
chronic, unpredictable, mildly stressed (CUMS) mice. Here, spontaneous
alterations in cheese-fed stressed mice were noted to be effectively recovered
with statistical significance regardless cow species. Interestingly, for the
analysis of fecal microbiota, Bacteroidetes were noted to
increase with a reduction in Firmicutes at the phylum level
with Jersey cheese. Taken together, we suggest that cheese intake provided a
beneficial effect on stressed mice in recovering recognition ability. In
particular, changes in internal microbiota were observed, suggesting that the
bioactive ingredients in cheese act as improvement agents with respect to mood
and brain function.
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Affiliation(s)
- Bohyun Yun
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Ja Yeon Yoo
- National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Mi Ri Park
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Sangdon Ryu
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Woong Ji Lee
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Hye Jin Choi
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Min Kyoung Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - Younghoon Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
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15
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Li J, Dong JN, Zhao Z, Lv Q, Yun B, Liu JQ, Cai XY. Expression of sodium/iodide transporters and thyroid stimulating hormone receptors in thyroid cancer patients and its correlation with iodine nutrition status and pathology. Eur Rev Med Pharmacol Sci 2019; 22:4573-4580. [PMID: 30058701 DOI: 10.26355/eurrev_201807_15513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the relationship between the expression of sodium/iodide transporter (NIS) and thyroid stimulating hormone receptor (TSHR) and iodine nutritional status in patients with thyroid carcinoma. PATIENTS AND METHODS 146 cases of thyroid cancer in Shanghai Gongli Hospital, the Second Military Medical University between February and December 2014 were selected as thyroid cancer group, 120 cases of normal thyroid morphology examined by thyroid ultrasound at the same period were selected as normal group. General information and thyroid function of two groups were recorded and analyzed. H&E staining was used to perform histopathological study on both normal group and thyroid cancer group, and immunohistochemistry was used to detect NIS and TSHR protein expression and position. Reverse transcriptase polymerase chain reaction (RT-PCR) was used for quantitative detection of NIS and TSHR mRNA in the two groups, and the relationship between iodine nutrition and NIS and TSHR expression in thyroid cancer patients was studied. The expression of NIS and TSHR in each group was detected by Western blotting, and the difference in NIS and TSHR expression was analyzed by SPSS 17.0 statistical software. RESULTS The difference of serum total triiodothyronine (TT3), total thyroxine (TT4), and thyroid stimulating hormone (TSH) levels between the normal group and the thyroid cancer group was statistically significant (p < 0.05). H&E staining showed that the histopathology of the thyroid cancer group was significantly different from that of the normal group. Immunohistochemistry showed the positive expression of NIS and TSHR in thyroid cancer group. The expression of NIS and TSHR mRNA and protein in thyroid cancer patients was significantly lower than that in normal group detected by RT-PCR and Western blotting. Analysis of variance showed that the difference of NIS and TSHR expression between the two groups was statistically significant (p < 0.05). CONCLUSIONS These findings indicated that the expression of NIS and TSHR in thyroid cancer is closely related to iodine nutritional status, which has important research value.
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Affiliation(s)
- J Li
- Department of General Surgery, Shanghai Gongli Hospital, the Second Military Medical University, Shanghai, PR China.
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16
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Son S, Koh J, Park M, Ryu S, Lee W, Yun B, Lee JH, Oh S, Kim Y. Effect of the Lactobacillus rhamnosus strain GG and tagatose as a synbiotic combination in a dextran sulfate sodium-induced colitis murine model. J Dairy Sci 2019; 102:2844-2853. [DOI: 10.3168/jds.2018-15013] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/09/2018] [Indexed: 12/30/2022]
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17
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Yang KH, Yun B, Choi HJ, Ryu S, Lee WJ, Oh MH, Song MH, Kim JN, Oh S, Kim Y, Kim YJ. Simple Evaluation of Listeria monocytogenes Pathogenesis Using Caenorhabditis elegans Animal Model. Food Sci Anim Resour 2019; 39:84-92. [PMID: 30882077 PMCID: PMC6411236 DOI: 10.5851/kosfa.2019.e6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 12/04/2018] [Revised: 12/31/2018] [Accepted: 01/02/2019] [Indexed: 11/06/2022] Open
Abstract
Listeria monocytogenes is a major cause of serious foodborne illness in the dairy foods. Although Caenorhabditis elegans model is well established as a virulence model of pathogenic bacteria, its application on L. monocytogenes is critically unclear. The objective of this study was to carry out an evaluation of L. monocytogenes toxicity using C. elegans nematode as a simple host model. We found that C. elegans nematodes have high susceptibility to L. monocytogenes infection, as a consequence of accumulation of bacteria in the worms' intestine. However, L. innocua, which is known to be non-toxic, is not accumulate in the intestine of worms and is not toxic similarly to Escherichia coli OP50 known as the normal feed source of C. elegans. Importantly, immune-associated genes of C. elegans were intensely upregulated more than 3.0-fold when they exposed to L. monocytogenes. In conclusion, we established that C. elegans is an effective model for studying the toxicity of L. monocytogenes and we anticipate that this system will result in the discovery of many potential anti-listeria agents for dairy foods.
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Affiliation(s)
- Kyoung Hee Yang
- Department of Food and Biotechnology,
Korea University, Sejong 30019,
Korea
| | - Bohyun Yun
- Department of Animal Science and Institute
of Milk Genomics, Chonbuk National University,
Jeonju 54896, Korea
| | - Hye Jin Choi
- Department of Animal Science and Institute
of Milk Genomics, Chonbuk National University,
Jeonju 54896, Korea
| | - Sangdon Ryu
- Department of Animal Science and Institute
of Milk Genomics, Chonbuk National University,
Jeonju 54896, Korea
| | - Woong Ji Lee
- Department of Animal Science and Institute
of Milk Genomics, Chonbuk National University,
Jeonju 54896, Korea
| | - Mi-Hwa Oh
- Animal Products Research and Development
Division, National Institute of Animal Science, Rural Development
Administration, Wanju 55365,
Korea
| | - Min-Ho Song
- Division of Animal and Dairy Science,
Chungnam National University, Daejeon 34134,
Korea
| | - Jong Nam Kim
- Department of Beef Science, Korean
National College of Agriculture and Fisheries,
Jeonju 54874, Korea
| | - Sangnam Oh
- Department of Functional Food and
Biotechnology, Jeonju University, Jeonju 55069,
Korea
| | - Younghoon Kim
- Department of Animal Science and Institute
of Milk Genomics, Chonbuk National University,
Jeonju 54896, Korea
| | - Young Jun Kim
- Department of Food and Biotechnology,
Korea University, Sejong 30019,
Korea
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18
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Heo J, Shin D, Chang SY, Bogere P, Park MR, Ryu S, Lee WJ, Yun B, Lee HK, Kim Y, Oh S. Comparative Genome Analysis and Evaluation of Probiotic Characteristics of Lactobacillus plantarum Strain JDFM LP11. Korean J Food Sci Anim Resour 2018; 38:878-888. [PMID: 30479496 PMCID: PMC6238035 DOI: 10.5851/kosfa.2018.e21] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 05/28/2018] [Revised: 07/16/2018] [Accepted: 07/24/2018] [Indexed: 01/05/2023] Open
Abstract
In the current study, the probiotic potential of approximately 250 strains of
lactic acid bacteria (LAB) isolated from piglet fecal samples were investigated;
among them Lactobacillus plantarum strain JDFM LP11, which
possesses significant probiotic potential, with enhanced acid/bile tolerance,
attachment to porcine intestinal epithelial cells (IPEC-J2), and antimicrobial
activity. The genetic characteristics of strain JDFM LP11 were explored by
performing whole genome sequencing (WGS) using a PacBio system. The circular
draft genome have a total length of 3,206,883 bp and a total of 3,021 coding
sequences were identified. Phylogenetically, three genes, possibly related to
survival and metabolic activity in the porcine host, were identified. These
genes encode p60, lichenan permease IIC component, and protein TsgA, which are a
putative endopeptidase, a component of the phosphotransferase system (PTS), and
a major facilitator in the gut environment, respectively. Our findings suggest
that understanding the functional and genetic characteristics of L.
plantarum strain JDFM LP11, with its candidate genes for gut
health, could provide new opportunities and insights into applications in the
animal food and feed additive industries.
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Affiliation(s)
- Jaeyoung Heo
- International Agricultural Development and Cooperation Center, Chonbuk National University, Jeonju 54896, Korea
| | - Donghyun Shin
- Department of Animal Biotechnology, Chonbuk National University, Jeonju 54896, Korea
| | - Sung Yong Chang
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Paul Bogere
- Graduate School of Agricultural Convergence Technology, Chonbuk National University, Jeonju 54896, Korea
| | - Mi Ri Park
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Sangdon Ryu
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Woong Ji Lee
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Bohyun Yun
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Hak Kyo Lee
- Department of Animal Biotechnology, Chonbuk National University, Jeonju 54896, Korea
| | - Younghoon Kim
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - Sangnam Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
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19
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Lee I, Won Y, Yun J, Lee J, Yun B, Cho S, Choi Y, Lee B, Seo S. Changes in expression of thioredoxin and thioredoxin binding protein-2 according to histone deacetylase inhibitor treatment in human endometrial cells from patients with endometriosis. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1075] [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: 10/28/2022]
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20
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Won Y, Lee I, Yun J, Lee J, Seo S, Cho S, Choi Y, Lee B, Yun B. High mobility group box-1 increases cell proliferation, expression of adhesion molecules, and secretion of cytokines in human endometrial stromal cells in endometriosis. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1071] [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: 10/28/2022]
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21
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Yun B, Zhang T, Azad MAK, Wang J, Nowell CJ, Kalitsis P, Velkov T, Hudson DF, Li J. Correction to: Polymyxin B causes DNA damage in HK-2 cells and mice. Arch Toxicol 2018; 92:2273-2274. [PMID: 29916052 DOI: 10.1007/s00204-018-2233-9] [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] [Indexed: 10/14/2022]
Abstract
In the original publication of the article, part of Fig. 6 is missing. The missing subpanels, Fig. 6c, d are given below.
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Affiliation(s)
- B Yun
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - T Zhang
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - M A K Azad
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - J Wang
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - C J Nowell
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - P Kalitsis
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - T Velkov
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia.,Department of Pharmacology and Therapeutics, University of Melbourne, Melbourne, Australia
| | - D F Hudson
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Australia.
| | - J Li
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia. .,Infection & Immunity Program, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Melbourne, Australia.
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22
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Yun B, An HM, Shim WB, Kim WI, Hung NB, Han S, Kim HJ, Lee S, Kim SR. Development of a Screening Method and Device for the Detection of Escherichia coli from Agri-Food Production Environments and Fresh Produce. J Microbiol Biotechnol 2017; 27:2141-2150. [PMID: 29092389 DOI: 10.4014/jmb.1709.09019] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This study was conducted to develop a screening method using Colilert-18 and a device for the detection of E. coli from agri-food production environments and fresh vegetables. The specificity and sensitivity of Colilert-18 by temperature (37°C and 44°C) were evaluated with 38 E. coli and 78 non-E. coli strains. The false-positive rate was 3.8% (3/78) and 0% (0/78) at 37°C and 44°C, respectively. The detection limit of E. coli at 37°C at <1.0 log CFU/250 ml was lower than that at 44°C. The efficiency of the developed device, which comprised an incubator equipped with a UV lamp to detect E. coli in the field, was evaluated by measuring the temperature and UV lamp brightness. The difference between the set temperature and actual temperature of the developed device was about 1.0°C. When applying the developed method and device to various samples, including utensils, gloves, irrigation water, seeds, and vegetables, there were no differences in detection rates of E. coli compared with the Korean Food Code method. For sanitary disposal of culture samples after experiments, the sterilization effect of sodium dichloroisocyanurate (NaDCC) tablets was assessed for use as a substitute for an autoclave. The addition of one tablet of NaDCC per 50 ml was sufficient to kill E. coli cultured in Colilert-18. These results show that the developed protocol and device can efficiently detect E. coli from agri-food production environments and vegetables.
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Affiliation(s)
- Bohyun Yun
- Microbial Safety Team, Agro-Food Safety & Crop Protection Department, National Institution of Agricultural Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Hyun-Mi An
- Microbial Safety Team, Agro-Food Safety & Crop Protection Department, National Institution of Agricultural Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Won-Bo Shim
- Department of Agricultural Chemistry and Food Science & Technology, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Won-Il Kim
- Microbial Safety Team, Agro-Food Safety & Crop Protection Department, National Institution of Agricultural Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Nguyen Bao Hung
- Microbial Safety Team, Agro-Food Safety & Crop Protection Department, National Institution of Agricultural Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Sanghyun Han
- Division of Research Policy, Research Policy Bureau, Rural Development Administration, Jeonju 54875, Republic of Korea
| | - Hyun-Ju Kim
- Microbial Safety Team, Agro-Food Safety & Crop Protection Department, National Institution of Agricultural Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Seungdon Lee
- Microbial Safety Team, Agro-Food Safety & Crop Protection Department, National Institution of Agricultural Science, Rural Development Administration, Wanju 55365, Republic of Korea
| | - Se-Ri Kim
- Microbial Safety Team, Agro-Food Safety & Crop Protection Department, National Institution of Agricultural Science, Rural Development Administration, Wanju 55365, Republic of Korea
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Lee J, Israel E, Greenspan P, Kaafarani H, Pasternack M, Kinane B, Weinstein H, Yun B, Aaronson E, Rao S. 78 Decreasing Emergency Department Utilization by Patients Followed by Pediatric Specialists. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.103] [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: 11/30/2022]
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Lee J, Yun B, Seo S, Cho S, Lee B, Choi Y. CRH expression in follicular fluid patients with endometriosis. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.596] [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: 11/25/2022]
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Yun B, Song M, Park DJ, Oh S. Beneficial Effect of Bifidobacterium longum ATCC 15707 on Survival Rate of Clostridium difficile Infection in Mice. Korean J Food Sci Anim Resour 2017; 37:368-375. [PMID: 28747822 PMCID: PMC5516063 DOI: 10.5851/kosfa.2017.37.3.368] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 03/07/2017] [Revised: 04/29/2017] [Accepted: 05/08/2017] [Indexed: 12/28/2022] Open
Abstract
Clostridium difficile infection (CDI) is the main cause of hospital-acquired diarrhea that can cause colitis or even death. The medical-treatment cost and deaths caused by CDI are increasing annually worldwide. New approaches for prevention and treatment of these infections are needed, such as the use of probiotics. Probiotics, including Bifidobacterium spp. and Lactobacillus, are microorganisms that confer a health benefit to the host when administered in adequate amounts. The effect of Bifidobacterium longum ATCC 15707 on infectious disease caused by C. difficile 027 was investigated in a mouse model. The survival rates for mice given the pathogen alone, and with live cells, or dead cells of B. longum were 40, 70, and 60%, respectively. In addition, the intestinal tissues of the B. longum-treated group maintained structural integrity with some degree of damage. These findings suggested that B. longum ATCC 15707 has a function in repressing the infectious disease caused by C. difficile 027.
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Affiliation(s)
- Bohyun Yun
- Microbial Safety Team, Agro-Food Safety & Crop Protection Department, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea
| | - Minyu Song
- Animal Products Research and Development Division, National Institute of Animal Science, RDA, Wanju 55365, Korea
| | | | - Sejong Oh
- Division of Animal Science, Chonnam National University, Gwangju 61186, Korea
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Abstract
The group IVA phospholipase A2, commonly called cytosolic phospholipase A2α (cPLA2α), is a widely expressed enzyme that hydrolyzes membrane phospholipid to produce arachidonic acid and lysophospholipids, which are precursors for a number of bioactive lipid mediators. Arachidonic acid is metabolized through the cyclooxygenase and lipoxygenase pathways for production of prostaglandins and leukotrienes that regulate normal physiological processes and contribute to disease pathogenesis. cPLA2α is composed of an N-terminal C2 domain and a C-terminal catalytic domain that contains the Ser-Asp catalytic dyad. The catalytic domain contains phosphorylation sites and basic residues that regulate the catalytic activity of cPLA2α. In response to cell stimulation, cPLA2α is rapidly activated by posttranslational mechanisms including increases in intracellular calcium and phosphorylation by mitogen-activated protein kinases. In resting cells, cPLA2α is localized in the cytosol but translocates to membrane including the Golgi, endoplasmic reticulum, and the peri-nuclear membrane in response to increases in intracellular calcium. Calcium binds to the C2 domain, which promotes the interaction of cPLA2α with membrane through hydrophobic interactions. In this chapter, we describe assays used to study the calcium-dependent translocation of cPLA2α to membrane, a regulatory step necessary for access to phospholipid and release of arachidonic acid.
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Affiliation(s)
- B Yun
- National Jewish Health, Denver, CO, United States
| | - C C Leslie
- National Jewish Health, Denver, CO, United States; University of Colorado Denver, Aurora, CO, United States.
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Yun DY, Kang YG, Yun B, Kim EH, Kim M, Park JS, Lee JH, Hong YS. Distinctive Metabolism of Flavonoid between Cultivated and Semiwild Soybean Unveiled through Metabolomics Approach. J Agric Food Chem 2016; 64:5773-83. [PMID: 27356159 DOI: 10.1021/acs.jafc.6b01675] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Soybeans are an important crop for agriculture and food, resulting in an increase in the range of its application. Recently, soybean leaves have been used not only for food products but also in the beauty industry. To provide useful and global metabolite information on the development of soy-based products, we investigated the metabolic evolution and cultivar-dependent metabolite variation in the leaves of cultivated (Glycine max) and semiwild (G. gracilis) soybean, through a (1)H NMR-based metabolomics approach, as they grew from V (vegetative) 1 to R (reproductive) 7 growth stages. The levels of primary metabolites, such as sucrose, amino acids, organic acids, and fatty acids, were decreased both in the G. gracilis and G. max leaves. However, the secondary metabolites, such as pinitol, rutin, and polyphenols, were increased while synthesis of glucose was elevated as the leaves grew. When metabolite variations between G. gracilis and G. max are compared, it was noteworthy that rutin and its precursor, quercetin-3-O-glucoside, were found only in G. gracilis but not in G. max. Furthermore, levels of pinitol, proline, β-alanine, and acetic acid, a metabolite related to adaptation toward environmental stress, were different between the two soybean cultivars. These results highlight their distinct metabolism for adaptation to environmental conditions and their intrinsic metabolic phenotype. This study therefore provides important information on the cultivar-dependent metabolites of soybean leaves for better understanding of plant physiology toward the development of soy-based products.
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Affiliation(s)
- Dae-Yong Yun
- Division of Food and Nutrition, Chonnam National University , Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Young-Gyu Kang
- Applied Technology & Research Division, R&D Center, AmorePacific Corporation , Yongin-si, Gyeonggi-do 446-729, Republic of Korea
| | - Bohyun Yun
- Division of Food and Nutrition, Chonnam National University , Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea
| | - Eun-Hee Kim
- Protein Structure Group, Korea Basic Science Institute , Cheongwon-Gu, Cheongju-Si, Chungbuk 363-883, Republic of Korea
| | - Myoyeon Kim
- Applied Technology & Research Division, R&D Center, AmorePacific Corporation , Yongin-si, Gyeonggi-do 446-729, Republic of Korea
| | - Jun Seong Park
- Applied Technology & Research Division, R&D Center, AmorePacific Corporation , Yongin-si, Gyeonggi-do 446-729, Republic of Korea
| | - John Hwan Lee
- Applied Technology & Research Division, R&D Center, AmorePacific Corporation , Yongin-si, Gyeonggi-do 446-729, Republic of Korea
| | - Young-Shick Hong
- Division of Food and Nutrition, Chonnam National University , Yongbong-ro, Buk-gu, Gwangju 500-757, Republic of Korea
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Yun B, Oh S, Song M, Hong YS, Park S, Park DJ, Griffiths MW, Oh S. Inhibitory Effect of Epigallocatechin Gallate on the Virulence of Clostridium difficile PCR Ribotype 027. J Food Sci 2015; 80:M2925-31. [PMID: 26556797 DOI: 10.1111/1750-3841.13145] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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: 04/12/2015] [Accepted: 10/12/2015] [Indexed: 12/22/2022]
Abstract
Clostridium difficile infection (CDI) is the most prevalent cause of health-care-associated infections. CDI-related health-care costs and deaths are both increasing annually on a global scale. C. difficile have been reported in food products in Canada, Europe, and the United States; however, the systematic transmission of C. difficile between humans and animals is yet to be understood. Because of the limitations of current therapeutic options, there is a need for the development of new patient treatments. Epigallocatechin gallate (EGCG) is a major catechin compound found in green tea extracts and exhibits antioxidant and antimicrobial activities. This study was conducted to investigate the inhibitory effects of EGCG on the expression of virulence genes in C. difficile and in C. difficile-associated diseases by inhibition of quorum sensing. The protein expression of autoinducer-2 (AI-2) was evaluated by AI-2 activity. EGCG at various concentrations had an inhibitory effect on AI-2 production, especially at 10 μg/mL. EGCG also significantly repressed the transcription of virulence genes, including luxS and tcdA, and prolonged the survival of Caenorhabditis elegans infected with C. difficile. Furthermore, treatment with EGCG effectively protected C. difficile-infected mice from C. difficile-induced death. Histological analysis of the colon and cecum of these mice revealed that EGCG protected tissues of the lower intestinal tract from damage. EGCG exerted growth-inhibitory and bactericidal activities on C. difficile in C. difficile-infected mice. Our results suggest that EGCG has significant antipathogenic effects on C. difficile and can be used to prevent or treat C. difficile-associated diseases or C. difficile infections.
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Affiliation(s)
- Bohyun Yun
- Div. of Animal Science, Chonnam National Univ, Gwangju, 500-757, South Korea
| | - Seunghan Oh
- Div. of Animal Science, Chonnam National Univ, Gwangju, 500-757, South Korea
| | - Minyu Song
- Div. of Animal Science, Chonnam National Univ, Gwangju, 500-757, South Korea
| | - Young-Shick Hong
- Div. of Food and Nutrition, Chonnam National Univ, Gwangju, 500-757, South Korea
| | - Sungsu Park
- School of Mechanical Engineering, Sungkyunkwan Univ, Suwon, 440-746, South Korea
| | | | - Mansel W Griffiths
- Dept. of Food Science, Univ. of Guelph, Canadian Research Institute for Food Safety, 000 Guelph, ON, N1G 2W1, Canada
| | - Sejong Oh
- Div. of Animal Science, Chonnam National Univ, Gwangju, 500-757, South Korea
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Song M, Yun B, Moon JH, Park DJ, Lim K, Oh S. Characterization of Selected Lactobacillus Strains for Use as Probiotics. Korean J Food Sci Anim Resour 2015; 35:551-6. [PMID: 26761878 PMCID: PMC4662139 DOI: 10.5851/kosfa.2015.35.4.551] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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: 07/14/2015] [Revised: 07/25/2015] [Accepted: 07/25/2015] [Indexed: 11/06/2022] Open
Abstract
The aim of this study was to evaluate the functional properties of lactic acid bacteria from various sources and to identify strains for use as probiotics. Ten Lactobacillus strains were selected and their properties such as bile tolerance, acid resistance, cholesterol assimilation activity, and adherence to HT-29 cells were assessed to determine their potential as probiotics. Lactobacillus sp. JNU 8829, L. casei MB3, L. sakei MA9, L. sakei CH8, and L. acidophilus M23 were found to show full tolerance to the 0.3% bile acid. All strains without L. acidophilus M23 were the most acid-tolerant strains. After incubating the strains at pH 2.5 for 2 h, their viability decreased by 3 Log cells. Some strains survived at pH 2.5 in the presence of pepsin and 0.3% bile acid. Lactobacillus sp. JNU 8829, L. acidophilus KU41, L. acidophilus M23, L. fermentum NS2, L. plantarum M13, and L. plantarum NS3 were found to reduce cholesterol levels by >50% in vitro. In the adhesion assay, Lactobacillus sp. JNU 8829, L. casei MB3, L. sakei MA9, and L. sakei CH8 showed higher adhesion activities after 2 h of co-incubation with the intestinal cells. The results of this comprehensive analysis shows that this new probiotic strain named, Lactobacillus sp. JNU 8829 could be a promising candidate for dairy products.
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Affiliation(s)
- Minyu Song
- Division of Animal Science, Chonnam National University, Gwangju 500-757, Korea; Bioresources Inc, Sunchoen 540-843, Korea
| | - Bohyun Yun
- Division of Animal Science, Chonnam National University, Gwangju 500-757, Korea
| | - Jae-Hak Moon
- Department of Food Science, Chonnam National University, Gwangju 500-757, Korea
| | | | | | - Sejong Oh
- Division of Animal Science, Chonnam National University, Gwangju 500-757, Korea
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Yun B, Oh S, Griffiths MW. Lactobacillus acidophilus modulates the virulence of Clostridium difficile. J Dairy Sci 2014; 97:4745-58. [PMID: 24856984 DOI: 10.3168/jds.2014-7921] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 03/24/2014] [Indexed: 12/14/2022]
Abstract
Clostridium difficile is a spore-forming, toxin-producing, anaerobic bacterium that colonizes the human gastrointestinal tract. This pathogen causes antibiotic-associated diarrhea and colitis in animals and humans. Antibiotic-associated diseases may be treated with probiotics, and interest is increasing in such uses of probiotics. This study investigated the effect of Lactobacillus strains on the quorum-sensing signals and toxin production of C. difficile. In addition, an in vivo experiment was designed to assess whether Lactobacillus acidophilus GP1B is able to control C. difficile-associated disease. Autoinducer-2 activity was measured for C. difficile using the Vibrio harveyi coupled bioluminescent assay. Cell extract (10μg/mL) of L. acidophilus GP1B exhibited the highest inhibitory activity among 5 to 40μg/mL cell-extract concentrations. Real-time PCR data indicated decreased transcriptional levels in luxS, tcdA, tcdB, and txeR genes in the presence of 10μg/mL of cell extract of L. acidophilus GP1B. Survival rates at 5d for mice given the pathogen alone with L. acidophilus GP1B cell extract or L. acidophilus GP1B were 10, 70, and 80%, respectively. In addition, the lactic acid-produced L. acidophilus GP1B exhibits an inhibitory effect against the growth of C. difficile. Both the L. acidophilus GP1B and GP1B cell extract have significant antipathogenic effects on C. difficile.
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Affiliation(s)
- B Yun
- Division of Animal Science, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, Korea
| | - S Oh
- Division of Animal Science, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, Korea.
| | - M W Griffiths
- Department of Food Science, University of Guelph, Canadian Research Institute for Food Safety, Guelph, ON, N1G 2W1, Canada
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Anderegg A, Lin H, Yun B, Johnson R, Harfe B, Awatramani R. ISDN2012_0203: A transcription factor‐microRNA autoregulatory loop determines dopamine neuron numbers. Int J Dev Neurosci 2012. [DOI: 10.1016/j.ijdevneu.2012.10.027] [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: 10/27/2022] Open
Affiliation(s)
| | - H.‐P. Lin
- Northwestern UniversityILUnited States
| | - B. Yun
- Northwestern UniversityILUnited States
| | | | - B. Harfe
- Univ. FloridaGainsvilleFLUnited States
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Liu XM, Zhang SY, Yang C, Chen MJ, Y Cai X, Haddad MS, Yun B, Chen ZZ. Correlation between disc displacements and locations of disc perforation in the temporomandibular joint. Dentomaxillofac Radiol 2010; 39:149-56. [PMID: 20203276 DOI: 10.1259/dmfr/72395946] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The aim of this study was to investigate the correlation between disc displacement types and locations of disc perforation in the temporomandibular joint (TMJ). METHODS 157 patients (162 joints) with disc perforation observed through arthroscopy were included in this study. The types of disc displacement were analysed by TMJ MRI before operation. The locations of disc perforation under arthroscopy were recorded. The correlation between types of disc displacement and locations of disc perforation was analysed by Fisher's exact test. RESULTS Medial disc perforation was observed in 55.6% of patients with anterolateral displacement without reduction, but was observed in only 3.7% of patients with pure anterior displacement, and was not observed in patients with anteromedial displacement without reduction. There was a statistically significant difference between these groups in the incidence of medial disc perforation. CONCLUSIONS There is a correlation between different disc displacements and locations of disc perforation. The incidence of medial disc perforation in patients with anterolateral displacement was significantly higher. The types of disc displacement may have direct influence over the locations of disc perforation.
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Affiliation(s)
- X M Liu
- Department of Oral & Maxillofacial Surgery, Ninth People's Hospital, School of Stomatology, Shanghai JiaoTong University, No. 639, Zhi Zao Ju Rd, 200011, Shanghai, People's Republic of China
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Zhang S, Yang C, Wei K, Xu Y, Qiu Y, Cai X, Chen M, Yun B, Peng Y. A rabbit model for temporomandibular joint intracapsular adhesion. Int J Oral Maxillofac Surg 2009. [DOI: 10.1016/j.ijom.2009.03.680] [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: 10/20/2022]
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Cai X, Yang C, Zhang Z, Chen M, Zhang S, Yun B. Septic arthritis of temporomandibular joint treated with arthroscopy. Int J Oral Maxillofac Surg 2009. [DOI: 10.1016/j.ijom.2009.03.245] [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: 10/20/2022]
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Liu X, Zhang S, Yang C, Chen M, Cai X, Yun B, Chen Z. Correlation between disc displacements and locations of disc perforation in temporomandibular joint. Int J Oral Maxillofac Surg 2009. [DOI: 10.1016/j.ijom.2009.03.444] [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: 10/20/2022]
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Zhang S, Yang C, Liu X, Cai X, Chen M, Yun B, Chen Z. Intra-articular adhesions of temporomandibular joint—arthroscopic views and clinical perspectives. Int J Oral Maxillofac Surg 2009. [DOI: 10.1016/j.ijom.2009.03.447] [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: 10/20/2022]
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Love A, Geri C, Laird J, Yun B, Loake G, Sadanandom A, Milner J. An effector protein encoded by cauliflower mosaic virus inhibits SA-dependent defence responses in Arabidopsis via an NPR1-dependent mechanism. Comp Biochem Physiol A Mol Integr Physiol 2008. [DOI: 10.1016/j.cbpa.2008.04.528] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
UNLABELLED We aimed to describe the effect of our surgical and sialoendoscopic technique for diagnosis and treatment of chronic obstructive submandibular sialadenitis. METHODS Between January 2004 and June 2006, 68 patients presented with obstructive symptoms and were diagnosed and treated by interventional sialoendoscopy or excision. The patients all had radiographs and then, if the sialolith could not be found, diagnostic sialoendoscopy. The obstruction was treated by operation or interventional sialoendoscopy depending on the size, shape, site, and quality of the sialolith. RESULTS Forty-nine patients had sialoliths shown radiographically, and the features of 19 were found endoscopically and were of three types: radiolucent (n=6), in the branch (n=3), mucus plug (n=3), and stenotic (n=7). Twenty-seven obstructions were successfully removed surgically, giving a success rate of 27/31 (87%). Twenty-seven patients were treated by interventional sialoendoscopy, and in 22 cases the sialoliths were removed directly by sialoendoscopy (22/27, 81%). Obstructive symptoms were relieved in 9 of 10 cases without stones. CONCLUSION Operation or sialoendoscopy can be used to treat the obstruction in the submandibular gland.
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Affiliation(s)
- C-Q Yu
- Department of Oral and Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao-tong University Medical College, 639 Zhi-zao-ju Road, Shanghai 200011, PR China.
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Zhang SY, Yang C, Cai X, Chen M, Yun B, Peng Y. Arthroscopic disc repositioning and suturing: an effective treatment to TMJ internal derangement. Int J Oral Maxillofac Surg 2007. [DOI: 10.1016/j.ijom.2007.08.395] [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: 11/25/2022]
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Yun B, Shi Y. [Pediatric phacoemulsification with Acrysof intraocular lens implantation]. Zhonghua Yan Ke Za Zhi 2001; 37:111-4. [PMID: 11864403] [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] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To investigate the operative effects of pediatric phacoemulsification with Acrysof intraocular lens (IOL) implantation. METHODS Among 153 eyes of 120 children with cataract aged 3 -- 12 years old, phacoemulsification with Acrysof IOL implantation was performed on 76 eyes of 61 children, and cataract extracapsular extraction with polymethylmethacrylate (PMMA) IOL implantation was performed on 77 eyes of 59 children. The visual acuity, percentages of various complications and rate of neodymium: YAG (Nd: YAG) capsulotomy were followed up for 6 -- 18 months. RESULTS There were significant differences in the percentages of various complications and rate of neodymium: YAG (Nd: YAG) capsulotomy between the Acrysof group and the PMMA group (P < 0.01). The Acrysof group was associated with less posterior capsular opacification (6.6%) than the PMMA group (80.5%). The YAG capsulotomy rate was 2.6% for the Acrysof group, and 64.9% for the PMMA group. After operation 100% and 90.6% patients were relieved from blindness in the Acrysof group and the PMMA group respectively, the difference being not statistically significant (P > 0.05). 72.6% patients in the Acrysof group and 51.5% in the PMMA group obtained corrected visual acuity greater-than-or-equal 0.3, and the difference was statistically significant (P < 0.05). CONCLUSIONS Phacoemulsification with Acrysof intraocular lens implantation is effective in pediatric cataract surgery. Most of the patients obtain remarkable improvement in visual acuity with minimal complications and YAG capsulotomy rate after operation. It is necessary to perform further randomized and prospective studies to evaluate the long-term postoperative effects of Acrysof IOLs used in pediatric cataract surgery.
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Affiliation(s)
- B Yun
- Ophthalmology Department, Beijing Tong Ren Hospital, Beijing 100730, China
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Yun B, Lee K, Farkas R, Hitte C, Rabinow L. The LAMMER protein kinase encoded by the Doa locus of Drosophila is required in both somatic and germline cells and is expressed as both nuclear and cytoplasmic isoforms throughout development. Genetics 2000; 156:749-61. [PMID: 11014821 PMCID: PMC1461269 DOI: 10.1093/genetics/156.2.749] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Activity of the Darkener of apricot (Doa) locus of Drosophila melanogaster is required for development of the embryonic nervous system, segmentation, photoreceptor maintenance, normal transcription, and sexual differentiation. The gene encodes a protein kinase, with homologues throughout eukaryotes known as the LAMMER kinases. We show here that DOA is expressed as at least two different protein isoforms of 105 and 55 kD throughout development, which are primarily localized to the cytoplasm and nucleus, respectively. Doa transcripts and protein are expressed in all cell types both during embryogenesis and in imaginal discs. Although it was recently shown that DOA kinase is essential for normal sexual differentiation, levels of both kinase isoforms are equal between the sexes during early pupal development. The presence of the kinase on the cell membrane and in the nuclei of polytene salivary gland cells, as well as exclusion from the nuclei of specific cells, may be indicative of regulated kinase localization. Mosaic analysis in both the soma and germline demonstrates that Doa function is essential for cell viability. Finally, in contrast to results reported in other systems and despite some phenotypic similarities, genetic data demonstrate that the LAMMER kinases do not participate in the ras-MAP kinase signal transduction pathway.
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Affiliation(s)
- B Yun
- Waksman Institute, Rutgers University, Piscataway, New Jersey 08855, USA
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Benca RM, Obermeyer WH, Larson CL, Yun B, Dolski I, Kleist KD, Weber SM, Davidson RJ. EEG alpha power and alpha power asymmetry in sleep and wakefulness. Psychophysiology 1999; 36:430-6. [PMID: 10432792] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
Asymmetry of waking electroencephalography (EEG) alpha power in frontal regions has been correlated with waking emotional reactivity and the emotional content of dream reports. Little is known regarding alpha asymmetry during sleep. The present study was performed to compare alpha power and alpha power asymmetry in various brain regions across states of sleep and wakefulness. Waking and sleep EEG were recorded in a group of patients undergoing polysomnographic evaluation for possible sleep disorders. Alpha EEG asymmetry in frontal and temporal regions was significantly correlated in waking versus sleep, particularly during rapid eye movement (REM) sleep. These results suggest that patterns of frontal alpha asymmetry are stable across sleep and waking and may be related to emotional reactivity during dreaming. During sleep, alpha power was highest during slow-wave sleep and lowest during REM sleep. Implications of these data for understanding the functional significance of alpha power during waking and sleeping are considered.
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Affiliation(s)
- R M Benca
- Department of Psychiatry, University of Wisconsin, Madison, USA.
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Yun B, Farkas R, Lee K, Rabinow L. The Doa locus encodes a member of a new protein kinase family and is essential for eye and embryonic development in Drosophila melanogaster. Genes Dev 1994; 8:1160-73. [PMID: 7926721 DOI: 10.1101/gad.8.10.1160] [Citation(s) in RCA: 89] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Mutations at the Darkener of apricot (Doa) locus of Drosophila cause roughened eyes and increase transcript accumulation from the retrotransposon copia up to fourfold. Cloning of the gene and sequencing of cDNAs reveals that it encodes a putative serine/threonine protein kinase. Sequence data base searches identify it is a member of a novel highly conserved protein kinase family, with homologs in humans, mice, and Saccharomyces cerevisiae, not related to each other previously. Family members are characterized by a peptide motif reading EHLAMMERILG at kinase subdomain X, which is virtually 100% identical in all homologs. We therefore refer to this new family as the LAMMER protein kinases. As predicted from its primary sequence, Doa protein possess intrinsic protein kinase activity when expressed in bacteria, as assayed via autophosphorylation. The gene is expressed throughout development, and both stage and tissue-specific RNAs are found. Its function is essential, because maternally deposited or zygotically transcribed mRNA is required for development to larval stages, and defects in segmentation and development of the nervous system are observed in embryos derived from heteroallelic mothers. Doa function is also critical to Drosophila eye development, because the organization and development of pigment cells, bristles, and photoreceptors are affected in various mutant classes. In the most extreme cases that survive to adulthood, retinal photoreceptors degenerate prior to eclosion. These results demonstrate that the kinase encoded by Doa is required at multiple stages of development, for both differentiation and maintenance of specific cell types.
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Affiliation(s)
- B Yun
- Waksman Institute, Rutgers University, Piscataway, New Jersey 08855-0759
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