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Jung K, Kim SH, Joo KM, Lim SH, Shin JH, Roh J, Kim E, Park CW, Kim W. Oral Intake of Enzymatically Decomposed AP Collagen Peptides Improves Skin Moisture and Ceramide and Natural Moisturizing Factor Contents in the Stratum Corneum. Nutrients 2021; 13:nu13124372. [PMID: 34959923 PMCID: PMC8707759 DOI: 10.3390/nu13124372] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/03/2021] [Accepted: 12/04/2021] [Indexed: 01/04/2023] Open
Abstract
The stratum corneum (SC) is the outermost layer of the epidermis and plays an important role in maintaining skin moisture and protecting the skin from the external environment. Ceramide and natural moisturizing factor (NMF) are the major SC components that maintain skin moisture. In this study, we investigated whether the oral intake of enzymatically decomposed AP collagen peptides (APCPs) can improve skin moisture and barrier function by assessing changes in the ceramide and NMF contents in the SC after APCP ingestion with the aim to develop a skin functional food. Fifty participants orally ingested APCP (1000 mg) or placebo for 12 weeks, and then, skin hydration and skin texture were evaluated. SC samples were collected to analyze skin scaling, ceramide, and NMF contents. Participants in the APCP group exhibited improved skin moisture content by 7.33% (p = 0.031) and roughness by -4.09% (p = 0.036) when compared with those in the placebo group. NMF content; the amounts of amino acids (AA), including glycine and proline; and AA derivatives were significantly increased in the APCP group (31.98 μg/mg protein) compared to those in the placebo group (-16.01 μg/mg protein) (p = 0.006). The amounts of total ceramides and ceramide subclasses were significantly higher in the APCP group than in the placebo group (p = 0.014). In conclusion, our results demonstrate that APCP intake improves skin moisture and increase the ceramide and NMF contents in the SC, thereby enhancing the skin barrier function.
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Affiliation(s)
- Kyoungmi Jung
- Amorepacific Research and Development Center, 1920, Yonggu-daero, Giheung-gu, Yongin 17074, Korea; (S.-H.K.); (K.-M.J.); (S.-H.L.); (J.R.); (E.K.); (C.W.P.); (W.K.)
- Correspondence: ; Tel.: +82-31-280-5907
| | - Seung-Hun Kim
- Amorepacific Research and Development Center, 1920, Yonggu-daero, Giheung-gu, Yongin 17074, Korea; (S.-H.K.); (K.-M.J.); (S.-H.L.); (J.R.); (E.K.); (C.W.P.); (W.K.)
| | - Kyung-Mi Joo
- Amorepacific Research and Development Center, 1920, Yonggu-daero, Giheung-gu, Yongin 17074, Korea; (S.-H.K.); (K.-M.J.); (S.-H.L.); (J.R.); (E.K.); (C.W.P.); (W.K.)
| | - Sung-Hwan Lim
- Amorepacific Research and Development Center, 1920, Yonggu-daero, Giheung-gu, Yongin 17074, Korea; (S.-H.K.); (K.-M.J.); (S.-H.L.); (J.R.); (E.K.); (C.W.P.); (W.K.)
| | - Jin-Hee Shin
- P&K Skin Research Center, 25, Gukheo-daero 62-gil, Yeongdeungpo-gu, Seoul 07236, Korea;
| | - Jonghwa Roh
- Amorepacific Research and Development Center, 1920, Yonggu-daero, Giheung-gu, Yongin 17074, Korea; (S.-H.K.); (K.-M.J.); (S.-H.L.); (J.R.); (E.K.); (C.W.P.); (W.K.)
| | - Eunjoo Kim
- Amorepacific Research and Development Center, 1920, Yonggu-daero, Giheung-gu, Yongin 17074, Korea; (S.-H.K.); (K.-M.J.); (S.-H.L.); (J.R.); (E.K.); (C.W.P.); (W.K.)
| | - Chan Woong Park
- Amorepacific Research and Development Center, 1920, Yonggu-daero, Giheung-gu, Yongin 17074, Korea; (S.-H.K.); (K.-M.J.); (S.-H.L.); (J.R.); (E.K.); (C.W.P.); (W.K.)
| | - Wangi Kim
- Amorepacific Research and Development Center, 1920, Yonggu-daero, Giheung-gu, Yongin 17074, Korea; (S.-H.K.); (K.-M.J.); (S.-H.L.); (J.R.); (E.K.); (C.W.P.); (W.K.)
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Joo KM, Kim S, Koo YJ, Lee M, Lee SH, Choi D, Lim KM. Development and validation of UPLC method for WST-1 cell viability assay and its application to MCTT HCE™ eye irritation test for colorful substances. Toxicol In Vitro 2019; 60:412-419. [PMID: 31247334 DOI: 10.1016/j.tiv.2019.06.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 06/05/2019] [Accepted: 06/21/2019] [Indexed: 11/18/2022]
Abstract
WST-1 [Water Soluble Tetrazolium-1; 2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium, monosodium salt)] is widely used in the cell viability assays replacing MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide). A water-soluble formazan dye (4-[1-(4-Iodophenyl)-5-(4-nitrophenyl)formaz-3-yl]-1,3-benzene disulfonate, disodium salt) is produced from the reduction of WST-1 tetrazolium, of which optical density at 450 nm is measured to evaluate cell viability. Colorful substances may interfere with spectrometric measurement, and a method to specifically detect WST-1 formazan is required. Here, a simple, rapid, sensitive, and specific ultra-performance liquid chromatography coupled to UV detector (UPLC-UV) was developed and validated for the WST-1 formazan. For the application to cell viability assay, the supernatant from WST-1 assay was injected without sample preparation procedure and a single run was completed within 5 min. Chromatographic separation was achieved on BEH C18 column (1.7 μm, 2.1 × 50 mm) using gradient elution with the mobile phase of water and acetonitrile. The standard curves were linear over the concentration range of 2.5-120 μg/mL WST-1 formazan, which encompasses WST-1 formazan concentrations from 2% cell viability to 2 fold of 100% cell viability. The intra- and inter-day precisions were measured to be below 5% and accuracies were within the range of 91.8-104.9%. The validated method was successfully applied to the test of colorful substances in vitro eye irritation test with a human cornea-like epithelium, and in vitro cytotoxicity in HaCaT, human keratinocyte cell line.
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Affiliation(s)
- Kyung-Mi Joo
- AMOREPACIFIC CO/R&D Center, Gyeonggi-do, Republic of Korea
| | | | - Ye Ji Koo
- Department of Public Health Science, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Miri Lee
- College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | | | - Dalwoong Choi
- Department of Public Health Science, Graduate School, Korea University, Seoul 02841, Republic of Korea
| | - Kyung-Min Lim
- College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea.
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Park H, Hwang JH, Han JS, Lee BS, Kim YB, Joo KM, Choi MS, Cho SA, Kim BH, Lim KM. Skin irritation and sensitization potential of oxidative hair dye substances evaluated with in vitro, in chemico and in silico test methods. Food Chem Toxicol 2018; 121:360-366. [DOI: 10.1016/j.fct.2018.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/05/2018] [Accepted: 09/10/2018] [Indexed: 10/28/2022]
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Chung JO, Lee SB, Jeong KH, Song JH, Kim SK, Joo KM, Jeong HW, Choi JK, Kim JK, Kim WG, Shin SS, Shim SM. Quercetin and fisetin enhanced the small intestine cellular uptake and plasma levels of epi-catechins in in vitro and in vivo models. Food Funct 2018; 9:234-242. [PMID: 29168878 DOI: 10.1039/c7fo01576c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Quercetin and fisetin, known as catechol-containing flavonoids, could positively affect the absorption of catechins due to their strong affinity for catechol-O-methyl transferase (COMT), which can methylate and cause the excretion of catechins. The current study examined the effect of quercetin and fisetin on the absorption of epi-catechins (ECs) by using a Caco-2 cell line and an in vivo model. The intestinal transport of total catechins by Caco-2 cells was enhanced from 1.3- to 1.6-fold and 1.4- to 1.7-fold by adding quercetin and fisetin, respectively, compared to the control. It was even higher in the treatment with a mixture of quercetin and fisetin. While EC had the highest value of intestinal transport (169% of the control) in 10% quercetin treatment, EGC (235%), EGCG (244%), and ECG (242%) were significantly transported in the treatment with a 5% mixture of quercetin and fisetin (p < 0.05). In an in vivo pharmacokinetic study, the values of the area under the plasma concentration-time curve (AUC, ng h mL-1) were also higher in rats orally administered EGCG with 10% quercetin (365.5 ± 25.5) or 10% fisetin (825.3 ± 46.7) than in those administered EGCG only (111.3 ± 13.1). Methylated quercetin and methylated fisetin were determined to be m/z 317.24 and m/z 301.25 [M + H]+ with their own product ions, respectively. The results indicate that quercetin or fisetin is superior to ECs for methylation by COMT.
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Affiliation(s)
- Jin-Oh Chung
- Vital Beautie Research Institute, Amorepacific R&D Center, Yongin-si, Gyeonggi-do 17074, Republic of Korea
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Choi EH, Lee DY, Kim S, Chung JO, Choi JK, Joo KM, Jeong HW, Kim JK, Kim WG, Shim SM. Influence of flavonol-rich excipient food (onion peel and Dendropanax morbifera) on the bioavailability of green tea epicatechins in vitro and in vivo. Food Funct 2018; 8:3664-3674. [PMID: 28914949 DOI: 10.1039/c7fo01173c] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The impacts of onion peel (OP) and Dendropanax morbifera (DM), as excipient foods rich in flavonols, on the digestive recovery, intestinal absorption, and pharmacokinetics of GT epicatechins were studied via an in vitro digestion model system with Caco-2 cells and an in vivo study. The digestive stability of total epicatechins recovered from GT upon the addition of 2% DM was up to 1.12 times higher than that observed with OP. The combined effects of OP and DM, which were observed with 2% OP + DM in a ratio of 1 : 4 (w : w), significantly increased (by a factor of 1.31) the digestive recovery of total epicatechins (p < 0.05). Remarkable cellular uptakes of EC (185.36%) and ECG (188.08%) were found with 4% OP + DM (4 : 1, w : w), and those of EGC (112.30%) and EGCG (136.27%) were obtained with 2% OP + DM (4 : 1, w : w) and 1% OP + DM (1 : 1, w : w), respectively. The peak plasma concentrations of total epicatechins from GT, GT + 5% OP, GT + 5% DM, and GT + 2% OP + 2% DM were 1044.78 ± 609.10, 2267.18 ± 3734.38, 1270.35 ± 547.59, and 714.53 ± 499.27 ng mL-1, respectively. The Cmax value of total epicatechins in rats orally administrated with GT with 5% OP was found to be approximately twice of that obtained with GT alone. The co-ingestion of GT with flavonol-rich excipient foods possibly enhances the absorption of epicatechins because flavonols act as not only enhancers of digestive stability but also modulators of the biotransformation of epicatechins. The results obtained from the current study suggest that the absorption of GT catechins can vary depending upon the kinds and doses of excipient foods co-ingested.
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Affiliation(s)
- Eun-Hye Choi
- Department of Food Science and Technology, Sejong University, 98 Gunja-dong, Gwangjin-gu, Seoul 143-747, Republic of Korea.
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Joo KM, Kim AR, Kim SN, Kim BM, Lee HK, Bae S, Lee JH, Lim KM. Metabolomic analysis of amino acids and lipids in human hair altered by dyeing, perming and bleaching. Exp Dermatol 2016; 25:729-31. [PMID: 27060282 DOI: 10.1111/exd.13025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Kyung-Mi Joo
- AMOREPACIFIC CO/R&D Center, Yongin-si, Gyeonggi-do, Korea
| | - Ah-Reum Kim
- AMOREPACIFIC CO/R&D Center, Yongin-si, Gyeonggi-do, Korea
| | - Su-Na Kim
- AMOREPACIFIC CO/R&D Center, Yongin-si, Gyeonggi-do, Korea
| | - Boo-Min Kim
- AMOREPACIFIC CO/R&D Center, Yongin-si, Gyeonggi-do, Korea
| | - Hae Kwang Lee
- AMOREPACIFIC CO/R&D Center, Yongin-si, Gyeonggi-do, Korea
| | - SeungJin Bae
- College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - John-Hwan Lee
- AMOREPACIFIC CO/R&D Center, Yongin-si, Gyeonggi-do, Korea
| | - Kyung-Min Lim
- College of Pharmacy, Ewha Womans University, Seoul, Korea
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Choi SA, Lee YE, Kwak PA, Lee JY, Kim SS, Lee SJ, Phi JH, Wang KC, Song J, Song SH, Joo KM, Kim SK. Clinically applicable human adipose tissue-derived mesenchymal stem cells delivering therapeutic genes to brainstem gliomas. Cancer Gene Ther 2015; 22:302-11. [DOI: 10.1038/cgt.2015.25] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 04/16/2015] [Accepted: 04/30/2015] [Indexed: 12/13/2022]
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Son ED, Kim Y, Joo KM, Kim HJ, Lee E, Nam GW, Cho EG, Noh M, Chung JH, Byun SY, Lee TR. Skin dryness in apparently healthy human skin is associated with decreased expression of bleomycin hydrolase in the stratum corneum. Clin Exp Dermatol 2014; 40:247-53. [PMID: 25495994 DOI: 10.1111/ced.12520] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/05/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Maintenance of water balance in the stratum corneum (SC) is determined by the content of intercellular lipids and natural moisturizing factors (NMFs) in corneocytes. AIM To investigate the association between the NMFs and (pro)filaggrin and the proteases responsible for the processing of (pro)filaggrin to NMFs in the SC of hydrated and dry skin areas of healthy human subjects. METHODS The SC hydration state and the transepidermal water loss (TEWL) were measured using a Corneometer and a Tewameter, respectively. Proteases, (pro)filaggrin and NMFs were extracted from SC samples obtained by tape-stripping of the tested skin. Expression levels of (pro)filaggrin were determined by dot blotting and western blotting, and total NMFs by ultra-high performance liquid chromatography. Expression of the proteases caspase-14, calpain-1 and bleomycin hydrolase was measured by western blotting. RESULTS The levels of (pro)filaggrin were not significantly different between hydrated and dry skin, whereas the level of total NMFs was significantly reduced in dry skin. A negative correlation between (pro)filaggrin and NMFs was found in dry skin (Pearson correlation coefficient r = - 0.57, *P < 0.05). Bleomycin hydrolase expression was significantly decreased in the SC of dry skin. CONCLUSIONS These results suggest that the low hydration state of dry skin may be due to the reduction in (pro)filaggrin degradation caused by decreased bleomycin hydrolase expression.
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Affiliation(s)
- E D Son
- Research and Development Center, AmorePacific Corporation, Yongin-si, Korea
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Joo KM, Hwang JH, Bae S, Nahm DH, Park HS, Ye YM, Lim KM. Relationship of ceramide-, and free fatty acid-cholesterol ratios in the stratum corneum with skin barrier function of normal, atopic dermatitis lesional and non-lesional skins. J Dermatol Sci 2014; 77:71-4. [PMID: 25455137 DOI: 10.1016/j.jdermsci.2014.10.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 09/12/2014] [Accepted: 10/02/2014] [Indexed: 11/26/2022]
Affiliation(s)
- Kyung-Mi Joo
- AmorePacific R&D Center, Yongin, Republic of Korea
| | - Jee-Hyun Hwang
- College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - SeungJin Bae
- College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Dong-Ho Nahm
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Hae-Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Young-Min Ye
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Republic of Korea.
| | - Kyung-Min Lim
- College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea.
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Chang H, Choi H, Joo KM, Kim D, Lee TR. Manassantin B inhibits melanosome transport in melanocytes by disrupting the melanophilin-myosin Va interaction. Pigment Cell Melanoma Res 2012; 25:765-72. [PMID: 22863119 DOI: 10.1111/pcmr.12002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Human skin hyperpigmentation disorders occur when the synthesis and/or distribution of melanin increases. The distribution of melanin in the skin is achieved by melanosome transport and transfer. The transport of melanosomes, the organelles where melanin is made, in a melanocyte precedes the transfer of the melanosomes to a keratinocyte. Therefore, hyperpigmentation can be regulated by decreasing melanosome transport. In this study, we found that an extract of Saururus chinensis Baill (ESCB) and one of its components, manassantin B, inhibited melanosome transport in Melan-a melanocytes and normal human melanocytes (NHMs). Manassantin B disturbed melanosome transport by disrupting the interaction between melanophilin and myosin Va. Manassantin B is neither a direct nor an indirect inhibitor of tyrosinase. The total melanin content was not reduced when melanosome transport was inhibited in a Melan-a melanocyte monoculture by manassantin B. Manassantin B decreased melanin content only when Melan-a melanocytes were co-cultured with SP-1 keratinocytes or stimulated by α-MSH. Therefore, we propose that specific inhibitors of melanosome transport, such as manassantin B, are potential candidate or lead compounds for the development of agents to treat undesirable hyperpigmentation of the skin.
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Affiliation(s)
- Huikyoung Chang
- R&D Center, AmorePacific Corporation, Giheung-gu, Yongin-si, Gyeonggi-do, Korea
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Noh JY, Lim KM, Bae ON, Chung SM, Lee SW, Joo KM, Lee SD, Chung JH. Procoagulant and prothrombotic activation of human erythrocytes by phosphatidic acid. Am J Physiol Heart Circ Physiol 2010; 299:H347-55. [DOI: 10.1152/ajpheart.01144.2009] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Increased phosphatidic acid (PA) and phospholipase D (PLD) activity are frequently observed in various disease states including cancers, diabetes, sepsis, and thrombosis. Previously, PA has been regarded as just a precursor for lysophosphatidic acid (LPA) and diacylglycerol (DAG). However, increasing evidence has suggested independent biological activities of PA itself. In the present study, we demonstrated that PA can enhance thrombogenic activities in human erythrocytes through phosphatidylserine (PS) exposure in a Ca2+-dependent manner. In freshly isolated human erythrocytes, treatment of PA or PLD induced PS exposure. PA-induced PS exposure was not attenuated by inhibitors of phospholipase A2or phosphatidate phosphatase, which converts PA to LPA or DAG. An intracellular Ca2+increase and the resultant activation of Ca2+-dependent PKC-α appeared to underlie the PA-induced PS exposure through the activation of scramblase. A marginal decrease in flippase activity was also noted, contributing further to the maintenance of exposed PS on the outer membrane. PA-treated erythrocytes showed strong thrombogenic activities, as demonstrated by increased thrombin generation, endothelial cell adhesion, and erythrocyte aggregation. Importantly, these procoagulant activations by PA were confirmed in a rat in vivo venous thrombosis model, where PA significantly enhanced thrombus formation. In conclusion, these results suggest that PA can induce thrombogenic activities in erythrocytes through PS exposure, which can increase thrombus formation and ultimately contribute to the development of cardiovascular diseases.
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Affiliation(s)
| | | | | | | | - Sang-Wook Lee
- School of Electrical Engineering, Seoul National University, Seoul; and
| | - Kyung-Mi Joo
- Research and Development Center, Amorepacific Company, Gyeonggi-do, Korea
| | - Sin-Doo Lee
- School of Electrical Engineering, Seoul National University, Seoul; and
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Joo KM, Lee JH, Jeon HY, Park CW, Hong DK, Jeong HJ, Lee SJ, Lee SY, Lim KM. Pharmacokinetic study of ginsenoside Re with pure ginsenoside Re and ginseng berry extracts in mouse using ultra performance liquid chromatography/mass spectrometric method. J Pharm Biomed Anal 2010; 51:278-83. [DOI: 10.1016/j.jpba.2009.08.013] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2009] [Revised: 08/02/2009] [Accepted: 08/10/2009] [Indexed: 11/25/2022]
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Kim CW, Yun JW, Bae IH, Lee JS, Kang HJ, Joo KM, Jeong HJ, Chung JH, Park YH, Lim KM. Determination of Spatial Distribution of Melamine−Cyanuric Acid Crystals in Rat Kidney Tissue by Histology and Imaging Matrix-Assisted Laser Desorption/Ionization Quadrupole Time-of-Flight Mass Spectrometry. Chem Res Toxicol 2009; 23:220-7. [DOI: 10.1021/tx900354z] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chae-Wook Kim
- Amorepacific Corporation R&D Center, Yongin 446-729, Waters Korea, Guro-dong, Seoul 152-050, and College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Jun-Won Yun
- Amorepacific Corporation R&D Center, Yongin 446-729, Waters Korea, Guro-dong, Seoul 152-050, and College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Il-Hong Bae
- Amorepacific Corporation R&D Center, Yongin 446-729, Waters Korea, Guro-dong, Seoul 152-050, and College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Joon-Seok Lee
- Amorepacific Corporation R&D Center, Yongin 446-729, Waters Korea, Guro-dong, Seoul 152-050, and College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Hyun-Jin Kang
- Amorepacific Corporation R&D Center, Yongin 446-729, Waters Korea, Guro-dong, Seoul 152-050, and College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Kyung-Mi Joo
- Amorepacific Corporation R&D Center, Yongin 446-729, Waters Korea, Guro-dong, Seoul 152-050, and College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Hye-Jin Jeong
- Amorepacific Corporation R&D Center, Yongin 446-729, Waters Korea, Guro-dong, Seoul 152-050, and College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Jin-Ho Chung
- Amorepacific Corporation R&D Center, Yongin 446-729, Waters Korea, Guro-dong, Seoul 152-050, and College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Young-Ho Park
- Amorepacific Corporation R&D Center, Yongin 446-729, Waters Korea, Guro-dong, Seoul 152-050, and College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
| | - Kyung-Min Lim
- Amorepacific Corporation R&D Center, Yongin 446-729, Waters Korea, Guro-dong, Seoul 152-050, and College of Pharmacy, Seoul National University, Seoul 151-742, Republic of Korea
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Joo KM, Park CW, Jeong HJ, Lee SJ, Chang IS. Simultaneous determination of two Amadori compounds in Korean red ginseng (Panax ginseng) extracts and rat plasma by high-performance anion-exchange chromatography with pulsed amperometric detection. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 865:159-66. [PMID: 18329967 DOI: 10.1016/j.jchromb.2008.02.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2007] [Revised: 02/13/2008] [Accepted: 02/19/2008] [Indexed: 11/18/2022]
Abstract
A new simple, rapid and sensitive high-performance anion-exchange chromatography method with pulsed amperometric detection (HPAEC-PAD) was developed and validated for the simultaneous determination of two Amadori compounds, arginyl-fructose and arginyl-fructosyl-glucose in Korean red ginseng (Panax ginseng) extracts, rat plasma. Separation of the two target analytes was efficiently undertaken on CarboPac PA1 anion-exchange column with isocratic elution (400 mM sodium hydroxide and deionized water (90:10, v/v)) at flow rate 0.7 mL/min within 15 min of single chromatographic run. Under optimized conditions, the detection limits (signal-to-noise ratio equal to 3) were 20 and 25 ng/mL for arginyl-fructose and arginyl-fructosyl-glucose, respectively. Calibration curves of peak area for the two analytes were linear over three orders of magnitude with a correlation coefficients greater than 0.999. The accuracy of the method was tested by recovery measurement of the spiked samples which yielded good results of 94.15-102.62%. This method was successfully applied to the quantification of arginyl-fructose and arginyl-fructosyl-glucose in herbal extracts and in the plasma samples from rat.
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Affiliation(s)
- Kyung-Mi Joo
- Skin Research Institute, Amorepacific Corporation R&D Center, 314-1 Bora-Dong, Giheung-Gu, Yongin-Si, Gyeonggi-Do 446-729, Republic of Korea.
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Park JS, Yeom MH, Park WS, Joo KM, Rho HS, Kim DH, Chang IS. Enzymatic hydrolysis of green tea seed extract and its activity on 5alpha-reductase inhibition. Biosci Biotechnol Biochem 2006; 70:387-94. [PMID: 16495654 DOI: 10.1271/bbb.70.387] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [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: 11/08/2022]
Abstract
Two kaempferol glycosides were isolated from green tea seed extract (GTSE). After conducting a structure analysis, these two compounds were identified as kaempferol-3-O-[2-O-beta-D-galactopyranosyl-6-O-alpha-L-rhamnopyranosyl]-beta-D-glucopyranoside (compound 1) and kaempferol-3-O-[2-O-beta-D-xylopyranosyl-6-O-alpha-L-rhanmopyranosyl]-beta-D-glucopyranoside (compound 2). These two compounds were hydrolysed by o-glycolytic enzymes for the production of kaempferol. After performing several reactions, we found the optimum enzyme combination, a reaction with beta-galactosidase and hesperidinase. Finally, we produced kaempferol of above 95% purity. The 5alpha-reductase inhibition activities of GTSE hydrolysate (GTSE-H) containing kaempferol were evaluated by the contact cell-based metabolic method using a stable HEK 293 cell line. GTSE-H showed a good inhibition effect on HEK 293 cell lines both type 1 and type 2 on 5alpha-reductase. Especially, GTSE-H inhibited type 2 with kaempferol content dependency. The results indicate that the inhibition activity of hydrolysate on 5alpha-reductase type 2 increases in accordance with kaempferol content.
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Kang EK, Lee S, Park JH, Joo KM, Jeong HJ, Chang IS. Determination of hexavalent chromium in cosmetic products by ion chromatography and postcolumn derivatization. Contact Dermatitis 2006; 54:244-8. [PMID: 16689807 DOI: 10.1111/j.0105-1873.2006.00812.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [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: 12/01/2022]
Abstract
Chromium hydroxide green [Cr(2)O(OH)(4)] and chromium oxide green (Cr(2)O(3)) are colouring agents for use in cosmetic products. These colourants may contain chromium (VI), which cause skin allergies through percutaneous adsorption on the skin. Eye shadow is a representative cosmetic product in which significant colourants are used. We analysed the chromium (VI) in the eye shadows by ion chromatography and post column derivatization. We optimize conditions of chromium (VI) analysis in eye shadows. During the pretreatment procedure, there are no exchange of chromium (III) to chromium (VI). This method has a limit of quantification for chromium (VI) of 1.0 microg l(-1), recovery rate of 100 +/- 3% and analysis time less than 10 min. This result is 300 times more sensitive than the high-performance liquid chromatography method. We applied the optimized method to analyse 22 eye shadows and 6 colouring agents. 2 out of 22 of the products contained more than 5 mg l(-1). In our previous work, 5 mg l(-1) of Cr represented a threshold level. There was much more Cr(VI) in the colouring agents. The Cr(VI) in one of the colouring agents was 97.6 mg l(-1).
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Affiliation(s)
- Eun Kyung Kang
- Skin Research Institute, Amorepacific Corporation R&D Center, Yongin 449-729, Korea.
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