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  1. Article ; Online: Reply to Chang and Huang.

    Huang, Hung-Ling / Lee, Jung-Yu / Yang, Jinn-Moon / Chong, Inn-Wen / Wang, Jann-Yuan

    Clinical infectious diseases : an official publication of the Infectious Diseases Society of America

    2022  Volume 75, Issue 10, Page(s) 1867

    Language English
    Publishing date 2022-07-20
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 1099781-7
    ISSN 1537-6591 ; 1058-4838
    ISSN (online) 1537-6591
    ISSN 1058-4838
    DOI 10.1093/cid/ciac574
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Response by Chang and Han to Letter Regarding Article, "Influence of Hemoglobin Concentration on Stroke Recurrence and Composite Vascular Events".

    Chang, Jun Young / Han, Moon-Ku

    Stroke

    2020  Volume 51, Issue 8, Page(s) e152–e153

    MeSH term(s) Hemoglobins ; Humans ; Recurrence ; Stroke/therapy
    Chemical Substances Hemoglobins
    Language English
    Publishing date 2020-07-22
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 80381-9
    ISSN 1524-4628 ; 0039-2499 ; 0749-7954
    ISSN (online) 1524-4628
    ISSN 0039-2499 ; 0749-7954
    DOI 10.1161/STROKEAHA.120.030061
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Protective Effects of Novel Antioxidant Peptide Purified from Alcalase Hydrolysate of Velvet Antler Against Oxidative Stress in Chang Liver Cells in Vitro and in a Zebrafish Model In Vivo.

    Ding, Yuling / Ko, Seok-Chun / Moon, Sang-Ho / Lee, Seung-Hong

    International journal of molecular sciences

    2019  Volume 20, Issue 20

    Abstract: Velvet antler has a long history in traditional medicine. It is also an important healthy ingredient in food as it is rich in protein. However, there has been no report about antioxidant peptides extracted from velvet antler by enzymatic hydrolysis. Thus, ...

    Abstract Velvet antler has a long history in traditional medicine. It is also an important healthy ingredient in food as it is rich in protein. However, there has been no report about antioxidant peptides extracted from velvet antler by enzymatic hydrolysis. Thus, the objective of this study was to hydrolyze velvet antler using different commercial proteases (Acalase, Neutrase, trypsin, pepsin, and α-chymotrypsin). Antioxidant activities of different hydrolysates were investigated using peroxyl radical scavenging assay by electron spin resonance spectrometry. Among all enzymatic hydrolysates, Alcalase hydrolysate exhibited the highest peroxyl radical scavenging activity. Alcalase hydrolysate was then purified using ultrafiltration, gel filtration, and reverse-phase high performance liquid chromatography. The purified peptide was identified to be Trp-Asp-Val-Lys (tetrapeptide) with molecular weight of 547.29 Da by Q-TOF ESI mass spectroscopy. This purified peptide exhibited strong scavenging activity against peroxyl radical (IC
    MeSH term(s) Animals ; Antioxidants/chemistry ; Antioxidants/isolation & purification ; Antioxidants/pharmacology ; Antlers/chemistry ; Free Radical Scavengers/chemistry ; Free Radical Scavengers/pharmacology ; Hepatocytes/drug effects ; Hepatocytes/metabolism ; Humans ; Hydrolysis ; Oxidative Stress/drug effects ; Peptide Fragments/chemistry ; Peptide Fragments/isolation & purification ; Peptide Fragments/pharmacology ; Reactive Oxygen Species/metabolism ; Subtilisins/chemistry ; Zebrafish
    Chemical Substances Antioxidants ; Free Radical Scavengers ; Peptide Fragments ; Reactive Oxygen Species ; Subtilisins (EC 3.4.21.-)
    Language English
    Publishing date 2019-10-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms20205187
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Growth Period Effects on the Protective Properties of Aloe vera Against t-BHP-Induced Oxidative Stress in Chang Cells.

    Hwang, Jin-Woo / Kim, Eun-Kyung / Kim, Yon-Suk / Lee, Jae Woong / Lee, Jeong-Jun / Pyo, Han-Jong / Moon, Sang-Ho / Jeon, Byong-Tae / Park, Pyo-Jam

    Journal of microbiology and biotechnology

    2015  Volume 25, Issue 12, Page(s) 2072–2081

    Abstract: Aloe vera has been used in traditional medicine for the therapy of a variety of disorders, such as wounds and burns. However, few studies have examined the antioxidant capacities of A. vera plants during different growth periods. In order to investigate ... ...

    Abstract Aloe vera has been used in traditional medicine for the therapy of a variety of disorders, such as wounds and burns. However, few studies have examined the antioxidant capacities of A. vera plants during different growth periods. In order to investigate the effects of growth on antioxidant activity, A. vera was prepared from 2-, 4-, 6-, 8-, and 12-month-old aloe. The extracts from 6-month-old A. vera showed the highest contents of flavonoids (9.750 mg catechin equivalent/g extract) and polyphenols (23.375 mg gallic acid equivalent/g extract) and the highest ferric reducing antioxidant power (0.047 mM ferrous sulfate equivalent/mg extract). The extract from 6-month-old A. vera exhibited the highest free radical scavenging potential, and the lowest IC50 values were found for 2,2-diphenyl-1-picrylhydrazyl (0.26 mg/ml) and alkyl radicals (0.50 mg/ml). In addition, the extract from 6-month-old A. vera showed the greatest effects on cell viability in normal liver cells. Based on these findings, the extract from 6-month-old A. vera was examined further in order to determine its protective potential against tert-butyl hydroperoxide (t-BHP)-induced oxidative stress. The extract from 6-monthold A. vera at a concentration of 0.25 mg/ml showed the highest protective activity against t-BHP-induced reactive oxygen species production. These findings suggested that harvesting regimens were critical in the regulation of effects of the bioactive potential of A. vera on antioxidant activity.
    MeSH term(s) Aloe/chemistry ; Antioxidants/isolation & purification ; Antioxidants/pharmacology ; Cell Line ; Cell Survival/drug effects ; Flavonoids/analysis ; Free Radical Scavengers/isolation & purification ; Free Radical Scavengers/pharmacology ; Free Radicals/analysis ; Hepatocytes/drug effects ; Hepatocytes/physiology ; Humans ; Oxidative Stress/drug effects ; Peroxides/toxicity ; Plant Extracts/chemistry ; Plant Extracts/isolation & purification ; Plant Extracts/pharmacology ; Polyphenols/analysis
    Chemical Substances Antioxidants ; Flavonoids ; Free Radical Scavengers ; Free Radicals ; Peroxides ; Plant Extracts ; Polyphenols ; tert-butyl peroxide (M7ZJ88F4R1)
    Language English
    Publishing date 2015-09-11
    Publishing country Korea (South)
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1738-8872
    ISSN (online) 1738-8872
    DOI 10.4014/jmb.1504.04035
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Thymol from Thymus quinquecostatus Celak. protects against tert-butyl hydroperoxide-induced oxidative stress in Chang cells.

    Kim, Yon-Suk / Hwang, Jin-Woo / Kang, Seo-Hee / Kim, Ee-Hwa / Jeon, You-Jin / Jeong, Jae-Hyun / Kim, Hye-Ran / Moon, Sang-Ho / Jeon, Byong-Tae / Park, Pyo-Jam

    Journal of natural medicines

    2013  Volume 68, Issue 1, Page(s) 154–162

    Abstract: ... with Chang liver cells. Thymol significantly protected hepatocytes against t-BHP-induced cell cytotoxicity ... expression of Bcl-2 and Bax indicated that thymol inhibited t-BHP-induced Chang cell damage. Further, thymol ... inhibited the loss of mitochondrial membrane potential in t-BHP-treated Chang cells and prevented ...

    Abstract The present work describes the protective effects of thymol isolated from Thymus quinquecostatus Celak. against tert-butyl hydroperoxide (t-BHP)-induced oxidative damage through various experiments with Chang liver cells. Thymol significantly protected hepatocytes against t-BHP-induced cell cytotoxicity as demonstrated by increased viability. Furthermore, observation of Hoechst staining, annexin V/PI staining, and expression of Bcl-2 and Bax indicated that thymol inhibited t-BHP-induced Chang cell damage. Further, thymol inhibited the loss of mitochondrial membrane potential in t-BHP-treated Chang cells and prevented oxidative stress-triggered reactive oxygen species (ROS) and lipid peroxidation (malondialdehyde, MDA). Thymol restored the antioxidant capability of hepatocytes including glutathione (GSH) levels which were reduced by t-BHP. These results indicated that thymol prevents oxidative stress-induced damage to liver cells through suppression of ROS and MDA levels and increase of GSH level.
    MeSH term(s) Annexin A5/metabolism ; Antioxidants/isolation & purification ; Antioxidants/pharmacology ; Apoptosis/drug effects ; Cell Survival/drug effects ; Cytoprotection ; Dose-Response Relationship, Drug ; Glutathione/metabolism ; Glutathione/pharmacology ; Hepatocytes/drug effects ; Hepatocytes/metabolism ; Hepatocytes/pathology ; Humans ; Lipid Peroxidation/drug effects ; Malondialdehyde/metabolism ; Membrane Potential, Mitochondrial/drug effects ; Oxidative Stress/drug effects ; Phytotherapy ; Plants, Medicinal ; Reactive Oxygen Species/metabolism ; Thymol/isolation & purification ; Thymol/pharmacology ; Thymus Plant/chemistry ; bcl-2-Associated X Protein/metabolism ; tert-Butylhydroperoxide/toxicity
    Chemical Substances Annexin A5 ; Antioxidants ; BAX protein, human ; Reactive Oxygen Species ; bcl-2-Associated X Protein ; Thymol (3J50XA376E) ; Malondialdehyde (4Y8F71G49Q) ; tert-Butylhydroperoxide (955VYL842B) ; Glutathione (GAN16C9B8O)
    Language English
    Publishing date 2013-06-15
    Publishing country Japan
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2227540-X
    ISSN 1861-0293 ; 1340-3443
    ISSN (online) 1861-0293
    ISSN 1340-3443
    DOI 10.1007/s11418-013-0786-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Protective Effects of Novel Antioxidant Peptide Purified from Alcalase Hydrolysate of Velvet Antler Against Oxidative Stress in Chang Liver Cells In Vitro and in a Zebrafish Model In Vivo

    Yuling Ding / Seok-Chun Ko / Sang-Ho Moon / Seung-Hong Lee

    International Journal of Molecular Sciences, Vol 20, Iss 20, p

    2019  Volume 5187

    Abstract: ... in Chang liver cells in vitro and in a zebrafish model in vivo. This research suggests ...

    Abstract Velvet antler has a long history in traditional medicine. It is also an important healthy ingredient in food as it is rich in protein. However, there has been no report about antioxidant peptides extracted from velvet antler by enzymatic hydrolysis. Thus, the objective of this study was to hydrolyze velvet antler using different commercial proteases (Acalase, Neutrase, trypsin, pepsin, and α-chymotrypsin). Antioxidant activities of different hydrolysates were investigated using peroxyl radical scavenging assay by electron spin resonance spectrometry. Among all enzymatic hydrolysates, Alcalase hydrolysate exhibited the highest peroxyl radical scavenging activity. Alcalase hydrolysate was then purified using ultrafiltration, gel filtration, and reverse-phase high performance liquid chromatography. The purified peptide was identified to be Trp-Asp-Val-Lys (tetrapeptide) with molecular weight of 547.29 Da by Q-TOF ESI mass spectroscopy. This purified peptide exhibited strong scavenging activity against peroxyl radical (IC 50 value, 0.028 mg/mL). In addition, this tetrapeptide showed significant protection ability against AAPH-induced oxidative stress by inhibiting of reactive oxygen species (ROS) generation in Chang liver cells in vitro and in a zebrafish model in vivo. This research suggests that the tetrapeptide derived from Alcalase-proteolytic hydrolysate of velvet antler are excellent antioxidants and could be effectively applied as functional food ingredients and pharmaceuticals.
    Keywords velvet antler ; alcalase hydrolysate ; antioxidant peptide ; protection ability ; oxidative stress ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 500
    Language English
    Publishing date 2019-10-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Antioxidant activity and protective effects of Trapa japonica pericarp extracts against tert-butylhydroperoxide-induced oxidative damage in Chang cells.

    Kim, Yon-Suk / Hwang, Jin-Woo / Han, Young-Ki / Kwon, Hyuck-Ju / Hong, Heeok / Kim, Ee-Hwa / Moon, Sang-Ho / Jeon, Byong-Tae / Park, Pyo-Jam

    Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association

    2014  Volume 64, Page(s) 49–56

    Abstract: ... dysfunction in Chang liver cells. Therefore, based on these finding, it seems reasonable to suggest that T ...

    Abstract In this study, the antioxidant properties of Trapa japonica pericarp extracts were evaluated through several biochemical assays: 2,2-diphenyl-1-picrylhydrazyl (DPPH), alkyl radical scavenging activity, hydroxyl radical scavenging, ferric reducing antioxidant power (FRAP) assay, ABTS radical scavenging activity and oxygen radical absorbance capacity (ORAC). The antioxidant activities were compared with other natural and synthetic antioxidants. The results showed that higher radical scavenging activity and antioxidant capacity in FRAP than those of vitamin C as a positive control. T. japonica pericarp extracts have antioxidant properties through its ability to prevent tert-butylhydroperoxide (t-BHP)-induced toxicity which enhance the cell viability, reduce reactive oxygen species (ROS) production, inhibits of oxidative damage and mitochondria dysfunction in Chang liver cells. Therefore, based on these finding, it seems reasonable to suggest that T. japonica pericarp extracts has the potential to protect liver against t-BHP-induced cell damage and should be considered as a potential functional food.
    MeSH term(s) Antioxidants/pharmacology ; Benzimidazoles/chemistry ; Benzothiazoles/chemistry ; Cell Line ; Chromatography, High Pressure Liquid ; Electron Spin Resonance Spectroscopy ; Humans ; Liver/cytology ; Liver/drug effects ; Liver/metabolism ; Lythraceae/chemistry ; Membrane Potential, Mitochondrial ; Oxidative Stress/drug effects ; Plant Extracts/pharmacology ; Reactive Oxygen Species/metabolism ; Sulfonic Acids/chemistry ; tert-Butylhydroperoxide/toxicity
    Chemical Substances Antioxidants ; Benzimidazoles ; Benzothiazoles ; Plant Extracts ; Reactive Oxygen Species ; Sulfonic Acids ; 2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid (28752-68-3) ; tert-Butylhydroperoxide (955VYL842B) ; bisbenzimide ethoxide trihydrochloride (P976261J69)
    Language English
    Publishing date 2014-02
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 782617-5
    ISSN 1873-6351 ; 0278-6915
    ISSN (online) 1873-6351
    ISSN 0278-6915
    DOI 10.1016/j.fct.2013.11.018
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: [Rezension von: Yoon, Chang-ho, ...,, North Korea in transition]

    Moon, Chung-in / Yun, Chang-Ho

    Journal of economic literature Vol. 41, No. 2 , p. 625-626

    2003  Volume 41, Issue 2, Page(s) 625–626

    Author's details Chung-in Moon
    Keywords 40#49
    Language English
    Publisher Assoc
    Publishing place Nashville, Tenn
    Document type Article
    ZDB-ID 3076-4 ; 2010159-4
    ISSN 0022-0515
    ISSN 0022-0515
    Database ECONomics Information System

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  9. Article: Thymol from Thymus quinquecostatus Celak. protects against tert-butyl hydroperoxide-induced oxidative stress in Chang cells

    Kim, Yon-Suk / Hwang, Jin-Woo / Kang, Seo-Hee / Kim, Ee-Hwa / Jeon, You-Jin / Jeong, Jae-Hyun / Kim, Hye-Ran / Moon, Sang-Ho / Jeon, Byong-Tae / Park, Pyo-Jam

    Natural medicines. 2014 Jan., v. 68, no. 1

    2014  

    Abstract: ... with Chang liver cells. Thymol significantly protected hepatocytes against t-BHP-induced cell cytotoxicity ... expression of Bcl-2 and Bax indicated that thymol inhibited t-BHP-induced Chang cell damage. Further, thymol ... inhibited the loss of mitochondrial membrane potential in t-BHP-treated Chang cells and prevented ...

    Abstract The present work describes the protective effects of thymol isolated from Thymus quinquecostatus Celak. against tert-butyl hydroperoxide (t-BHP)-induced oxidative damage through various experiments with Chang liver cells. Thymol significantly protected hepatocytes against t-BHP-induced cell cytotoxicity as demonstrated by increased viability. Furthermore, observation of Hoechst staining, annexin V/PI staining, and expression of Bcl-2 and Bax indicated that thymol inhibited t-BHP-induced Chang cell damage. Further, thymol inhibited the loss of mitochondrial membrane potential in t-BHP-treated Chang cells and prevented oxidative stress-triggered reactive oxygen species (ROS) and lipid peroxidation (malondialdehyde, MDA). Thymol restored the antioxidant capability of hepatocytes including glutathione (GSH) levels which were reduced by t-BHP. These results indicated that thymol prevents oxidative stress-induced damage to liver cells through suppression of ROS and MDA levels and increase of GSH level.
    Keywords antioxidants ; cytotoxicity ; glutathione ; hepatocytes ; lipid peroxidation ; malondialdehyde ; membrane potential ; mitochondrial membrane ; oxidative stress ; protective effect ; reactive oxygen species ; thymol ; viability
    Language English
    Dates of publication 2014-01
    Size p. 154-162.
    Publishing place Springer-Verlag
    Document type Article
    ZDB-ID 1201350-x
    ISSN 1340-3443
    ISSN 1340-3443
    DOI 10.1007/s11418-013-0786-8
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Antioxidant activity and protective effects of Uncaria rhynchophylla extracts on t-BHP-induced oxidative stress in Chang cells

    Kim, Yon-Suk / Hwang, Jin-Woo / Kim, Seong-Eun / Kim, Ee-Hwa / Jeon, You-Jin / Moon, Sang-Ho / Jeon, Byong-Tae / Park, Pyo-Jam

    Biotechnology and bioprocess engineering. 2012 Dec., v. 17, no. 6

    2012  

    Abstract: Uncaria rhynchophylla (UR) is widely used as a traditional Chinese herbal medicine. However, there are few studies on antioxidant activity of UR extracts. The study was aimed at determining the antioxidant activity, the contents of polyphenol and ... ...

    Abstract Uncaria rhynchophylla (UR) is widely used as a traditional Chinese herbal medicine. However, there are few studies on antioxidant activity of UR extracts. The study was aimed at determining the antioxidant activity, the contents of polyphenol and flavonoid of UR extracts. Various assays were employed to evaluate the antioxidant property of water and ethanol extracts from the UR, compared to those of the other natural and synthetic antioxidants. UR extracts had high total phenolic contents in both the water (160 ± 2.32 mg GAE/g extracts) and ethanol extracts (190.2 ± 3.16 mg GAE/g extracts). In addition, total flavonoid contents were high in both the water extracts (154 ± 1.47 mg CE/g extracts) and ethanol extracts (184.2 ± 2.41 CE/g extracts). Specially, DPPH radical scavenging activity of ethanol extracts from UR were similar with vitamin C as a positive control. In addition, antioxidant capacity in ferric reducing antioxidant power (FRAP) were higher than that for BHT, which was used as a positive control. The antioxidant activity of extracts from UR showed stronger activity than those of vitamin C and α-tocopherol in ferric thiocyanate (FTC) and thiobarbituric acid (TBA) methods. The ethanol extracts of UR protected on H₂O₂-induced DNA damage. In addition, cytoprotective and anti-apoptotic effect of ethanol extracts from UR was also investigated in t-BHP-induced hepatotoxicity. Therefore, these results indicate that UR extracts have antioxidant properties through its ability to enhance the cell viability, mediation of production of ROS. The UR extracts could be suitable as an antioxidant in the food industry.
    Keywords DNA damage ; Uncaria rhynchophylla ; alpha-tocopherol ; antioxidant activity ; ascorbic acid ; butylated hydroxytoluene ; cell viability ; ethanol ; flavonoids ; food industry ; free radical scavengers ; hepatotoxicity ; medicine ; oxidative stress ; thiobarbituric acid
    Language English
    Dates of publication 2012-12
    Size p. 1213-1222.
    Publishing place Springer-Verlag
    Document type Article
    ZDB-ID 2125481-3
    ISSN 1976-3816 ; 1226-8372
    ISSN (online) 1976-3816
    ISSN 1226-8372
    DOI 10.1007/s12257-012-0278-9
    Database NAL-Catalogue (AGRICOLA)

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