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( Sung Hwan Kim ),( Woonhee Jeung ),( Il Dong Choi ),( Ji Woong Jeong ),( Dong Eun Lee ),( Chul Sung Huh ),( Geun Bae Kim ),( Seong Soo Hong ),( Jae Jung Shim ),( Jung Lyoul Lee ),( Jae Hun Sim ),( Yo 한국미생물 · 생명공학회 2016 Journal of microbiology and biotechnology Vol.26 No.6
To evaluate the effects of lactic acid bacteria (LAB) on Peyer`s patch cells, mice were treated with a high dose of kanamycin to disturb the gut microbial environment. The overarching goal was to explore the potential of LAB for use as a dietary probiotic that buffers the negative consequences of antibiotic treatment. In vitro, LAB stimulated the production of immunoglobulin A (IgA) from isolated Peyer`s patch cells. Inflammation-related genes (TNF-α, IL-1β, and IL-8) were up-regulated in Caco-2 cells stimulated with lipopolysaccharide (LPS), while tight-junction-related genes (ZO-1 and occludin) were down-regulated; the effects of LPS on inflammatory gene and tight-junction gene expression were reversed by treatment with LAB. Mice treated with a high dose of kanamycin showed increased serum IgE levels and decreases in serum IgA and fecal IgA levels; the number of Peyer`s patch cells decreased with kanamycin treatment. However, subsequent LAB treatment was effective in reducing the serum IgE level and recovering the serum IgA and fecal IgA levels, as well as the number of Peyer`s patch cells. In addition, ZO-1 and occludin mRNA levels were up-regulated in the ileum tissues of mice receiving LAB treatment. Lactic acid bacteria can enhance the intestinal immune system by improving the integrity of the intestinal barrier and increasing the production of IgA in Peyer`s patches. Lactic acid bacteria should be considered a potential probiotic candidate for improving intestinal immunity, particularly in mitigating the negative consequences of antibiotic use.
Kim, Jeon-Kyung,Choi, Min Sun,Jeung, Woonhee,Ra, Jehyeon,Yoo, Hye Hyun,Kim, Dong-Hyun The Korean Society of Ginseng 2020 Journal of Ginseng Research Vol.44 No.4
Background: It is well recognized that gut microbiota is involved in the biotransformation of ginsenosides by converting the polar ginsenosides to nonpolar bioactive ginsenosides. However, the roles of the gut microbiota on the pharmacokinetics of ginsenosides in humans have not yet been fully elucidated. Methods: Red ginseng (RG) or fermented red ginseng was orally administered to 34 healthy Korean volunteers, and the serum concentrations of the ginsenosides were determined using liquid chromatography-tandem mass spectrometry. In addition, the fecal ginsenoside Rd- and compound K (CK)eforming activities were measured. Then, the correlations between the pharmacokinetic profiles of the ginsenosides and the fecal ginsenoside-metabolizing activities were investigated. Results: For the RG group, the area under the serum concentratione-time curve values of ginsenosides Rd, F2, Rg3, and CK were 8.20 ± 11.95 ng·h/mL, 4.54 ± 3.70 ng·h/mL, 36.40 ± 19.68 ng·h/mL, and 40.30 ± 29.83 ng·h/mL, respectively. For the fermented red ginseng group, the the area under curve from zero to infinity (AUC<SUB>∞</SUB>) values of ginsenosides Rd, F2, Rg3, and CK were 187.90 ± 95.87 ng·h/mL, 30.24 ± 41.87 ng·h/mL, 28.68 ± 14.27 ng·h/mL, and 137.01 ± 96.16 ng·h/mL, respectively. The fecal CK-forming activities of the healthy volunteers were generally proportional to their ginsenoside Rd-eforming activities. The area under the serum concentration-time curve value of CK exhibited an obvious positive correlation (r = 0.566, p < 0.01) with the fecal CK-forming activity. Conclusion: The gut microbiota may play an important role in the bioavailability of the nonpolar RG ginsenosides by affecting the biotransformation of the ginsenosides.
Jeon-Kyung Kim,Min Sun Choi,Woonhee Jeung,Jehyeon Ra,Hye Hyun Yoo,DONG-HYUNKIM 고려인삼학회 2020 Journal of Ginseng Research Vol.44 No.4
Background: It is well recognized that gut microbiota is involved in the biotransformation of ginsenosidesby converting the polar ginsenosides to nonpolar bioactive ginsenosides. However, the roles of thegut microbiota on the pharmacokinetics of ginsenosides in humans have not yet been fully elucidated. Methods: Red ginseng (RG) or fermented red ginseng was orally administered to 34 healthy Koreanvolunteers, and the serum concentrations of the ginsenosides were determined using liquidchromatographyetandem mass spectrometry. In addition, the fecal ginsenoside Rde and compound K(CK)eforming activities were measured. Then, the correlations between the pharmacokinetic profiles ofthe ginsenosides and the fecal ginsenosideemetabolizing activities were investigated. Results: For the RG group, the area under the serum concentrationetime curve values of ginsenosides Rd,F2, Rg3, and CK were 8.20 11.95 ng$h/mL, 4.54 3.70 ng$h/mL, 36.40 19.68 ng$h/mL, and40.30 29.83 ng$h/mL, respectively. For the fermented red ginseng group, the the area under curve fromzero to infinity (AUCN) values of ginsenosides Rd, F2, Rg3, and CK were 187.90 95.87 ng$h/mL,30.24 41.87 ng$h/mL, 28.68 14.27 ng$h/mL, and 137.01 96.16 ng$h/mL, respectively. The fecal CKformingactivities of the healthy volunteers were generally proportional to their ginsenoside Rdeformingactivities. The area under the serum concentrationetime curve value of CK exhibited an obvious positivecorrelation (r ¼ 0.566, p < 0.01) with the fecal CK-forming activity. Conclusion: The gut microbiota may play an important role in the bioavailability of the nonpolar RGginsenosides by affecting the biotransformation of the ginsenosides.
정지웅,심재중,최일동,Sung Hwan Kim,Jehyeon Ra,구형근,Dong Eun Lee,Tae-Youl Kim,Woonhee Jeung,Jung-Hee Lee,이기원,허철성,Jae-Hun Sim,YOUNG-TAE AHN 한국식품영양과학회 2015 Journal of medicinal food Vol.18 No.12
Ursolic acid is a lipophilic pentacyclic triterpenoid found in many fruits and herbs and is used in several herbal folk medicines for diabetes. In this study, we evaluated the effects of apple pomace extract (APE; ursolic acid content, 183 mg/g) on skeletal muscle atrophy. To examine APE therapeutic potential in muscle atrophy, we investigated APE effects on the expression of biomarkers associated with muscle atrophy and hypertrophy. We found that APE inhibited atrophy, while inducing hypertrophy in C2C12 myotubes by decreasing the expression of atrophy-related genes and increasing the expression of hypertrophy-associated genes. The in vivo experiments using mice fed a diet with or without APE showed that APE intake increased skeletal muscle mass, as well as grip strength and exercise capacity. In addition, APE significantly improved endurance in the mice, as evidenced by increased exhaustive running time and muscle weight, and reduced the expression of the genes involved in the development of muscle atrophy. APE also decreased the concentration of serum lactate and lactate dehydrogenase, inorganic phosphate, and creatinine, the indicators of accumulated fatigue and exercise-induced stress. These results suggest that APE may be useful as an ergogenic functional food or dietary supplement.
( Jehyeon Ra ),( Dong Eun Lee ),( Sung Hwan Kim ),( Ji Woong Jeong ),( Hyung Keun Ku ),( Tae Youl Kim ),( Il Dong Choi ),( Woonhee Jeung ),( Jae Hun Sim ),( Young Tae Ahn ) 한국미생물 · 생명공학회 2014 Journal of microbiology and biotechnology Vol.24 No.12
In this study, we evaluated the effect of Lactobacillus plantarum HY7714 on skin hydration in human dermal fibroblasts and in hairless mice. In Hs68 cells, L. plantarum HY7714 not only increased the serine palmitoyltransferase (SPT) mRNA level, but also decreased the ceramidase mRNA level. In order to confirm the hydrating effects of L. plantarum HY7714 in vivo, we orally administered vehicle or L. plantarum HY7714 at a dose of 1 × 109 CFU/day to hairless mice for 8 weeks. In hairless mice, L. plantarum HY7714 decreased UVB-induced epidermal thickness. In addition, we found that L. plantarum HY7714 administration suppressed the increase in transepidermal water loss and decrease in skin hydration, which reflects barrier function fluctuations following UV irradiation. In particular, L. plantarum HY7714 administration increased the ceramide level compared with that in the UVB group. In the experiment on SPT and ceramidase mRNA expressions, L. plantarum HY7714 administration improved the reduction in SPT mRNA levels and suppressed the increase in ceramidase mRNA levels caused by UVB in the hairless mice skins. Collectively, these results suggest that L. plantarum HY7714 can be a potential candidate for preserving skin hydration levels against UV irradiation.