• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.7
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• pp.4272-4278
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• 2014

One of the most effective ways of preventing skin aging is to protect the skin from UV radiation, which was identified as the primary cause of photoaging. Therefore, it is necessary to develop natural and environment-friendly materials to the human skin. This study examined the effects of MAAs extracted from Chlamydononas hedleyi on UV protection and anti-inflammation in human skin cells. The function of porphyra-334 in the skin, which was isolated and purified from MMAs mixture, was tested in terms of its UV protective ability and anti-inflammation. As a result, porphyra-334 played a role in protecting the skin from UV radiation and anti-inflammation through the suppression of COX-2 expression. These results suggest that porphyra-334 can be a useful material in cosmetic products because it can protect the skin from UV radiation and anti-inflammation.

• Journal of Life Science
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• v.30 no.1
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• pp.40-44
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• 2020

This study investigated the anti-bacterial and anti-inflammatory activities of Artemisia iwayomogi Kitamura for medical and food additive applications. A 70% methanol extract of A. iwayomogi Kitam. was fractionated with a series of solvents in order of increasing polarity; these fractionated extracts showed high 2,2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) scavenging activity in the ethyl acetate fractions and high 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity in both the ethyl acetate and chloroform fractions. Levels of total phenolics and flavonoids were highest in the ethyl acetate fraction extracts. Eight bacteria were then treated with the A. iwayomogi Kitam. extract fractions and most showed similar or lower levels of anti-bacterial activity when compared to the control group, except for Staphylococcus aureus. In addition, the anti-oxidant activities of the ethyl acetate fractions of the A. iwayomogi Kitam. extract were higher than those of the other fractions. To confirm the anti-inflammatory activity of the extract fractions, we applied them to RAW 264.7 cells using LPS, and the results indicate that an ethyl acetate fraction at 250 ㎍/ml concentration inhibits nitric oxide production. This study demonstrates that an ethyl acetate fraction of A. iwayomogi Kitam. extract inhibits bacterial and inflammatory activities and could be useful as a potential source of bioactive compounds.

• Journal of Life Science
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• v.26 no.6
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• pp.680-688
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• 2016

Sipyukmiryuki-eum (SYMYKE), Danjacheongpi-tang (DJCPT), Jipae-san Ⅰ (JPS Ⅰ), Jipae-san Ⅱ (JPS Ⅱ), and Chungganhaeul-tang (CGHUT) are representative herb-combined remedies used in traditional Korean medicine for treating breast cancer patients, as mentioned in "Dongeuibogam." In this study, we investigated the total phenolic contents (TPCs) and the anti-oxidant and anti-microbial activities of hot water and 70% ethanol extracts of these herbal prescriptions. Among the five herb-combined remedies, the extraction yields of the hot water extracts and 70% ethanol extracts were the highest in JPS Ⅱ (34.30%) and DJCPT (30.50%), respectively. The TPCs of the hot water extracts from the herb medicines were rich in the order of JPS Ⅰ < CGHUT < JPS Ⅱ < SYMYKE < DJCPT. In addition, the 70% ethanol extracts from the herb medicines were rich in the order of JPS Ⅱ < JPS Ⅰ < CGHUT < SYMYKE < DJCPT. Among them, DJCPT and SYMYKE displayed a strong anti-oxidant capability, which was determined using ferric-reducing anti-oxidant power and scavenging of 2,2'-diphenyl-1-picrylhydrazyl and 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonate) cationic radical activity assays. In addition, anti-microbial activities against Staphylococcus aureus and Escherichia coli were stronger in the 70% ethanol extracts than in the hot water extracts. Together, these findings reveal a positive relationship between TPCs and their anti-oxidant activities.

• KSBB Journal
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• v.26 no.6
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• pp.483-490
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• 2011

Bioactive peptides (BAP) showed excellent cosmetic activity than bio-materials such as caffeic acid (CA), gallic acid (GA), and nicotinic acid (NA). Caffeoyl tripeptide-1 (CT-1) is a BAP that is stabilized with Gly-His-Lys (GHK) tripeptide and CA by using Fmoc solid phase peptide synthesis. Digalloyl tetrapeptide-19 (DT-19) is stabilized by combining Lys-Glu-Cys-Gly with GA and nicotinoyl tripeptide-1 (NT-1) is synthesized by GHK and NA. According to experiments, CT-1 has an excellent anti-oxidant function even with a very small amount of 10 ppm CT-1. DT-19's tyrosinase inhibition activity has the better effect of about 28.57% in 0.01% and 33.33% in 0.005% of concentration and about 7.89% in 0.001% concentration than vitamin-C. In addition, NT-1 is safer than the NA. Almost BAPs like pal-KTTKS, acetyl hexapeptide, and copper tripeptide-1 have the anti-wrinkle effect while DT-19 and NT-1 are applicable for potential BAPs focused on the whitening effect. The three kinds of BAPs like CT-1, DT-19, and NT-1 consisting of amino acids are safe to the skin, and have more excellent stability than bio-materials which are found to be unstable and cause skin irritation. Due to the high biological activity of BAP in the field of skin care, its utilization will increase constantly.

• Journal of Haehwa Medicine
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• v.16 no.2
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• pp.311-326
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• 2007

The purpose of this study is to investigate the anti-aging and anti-oxidative effects of oral administration with SYG (SipYiMiGwanJungTang) decoction in early aged rats. The results were as follows : 1. At the 52 week of the SYG group, the body weight gain was decreased. 2. At the 52 week of the SYG group, the activity of the SOD in the liver was significantly increased than the 10, 22 and 40 week. 3. At the 52 week of the SYG group, the level of the glutathione in the liver was significantly increased than the normal group. 4. At the 68 week of the SYG group, the activity of the catalase in the liver was significantly increased than the normal and control group. 5. At the 52 week of the normal group, the level of the NO in the liver was significantly increased than the 22 and 40 weeks. But, the level of the NO of the SYG group was not changed by the aging. 6. At the 52 and 68 weeks of the SYG group, the level of the MDA in the liver was significantly decreased than the normal and control groups. These results suggest that oral administration of SYG (SipYiMiGwanJungTang) decoction has anti-oxidative and anti-aging effects in early aged rats.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.8
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• pp.5452-5457
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• 2015

Conjugating a phytochemical, a strong antioxidant, with a functional peptide not only compensates for its stability, but also improves its solubility and anti-wrinkle effects, thereby contributing to the possibility of becoming an excellent cosmetic ingredient. Thus, in this study we examined the potential cosmetic use of a phytochemical-peptide derivative using gallic acid, a phytochemical with antioxidant, anti-inflammatory, and anti-cancer effects. To evaluate the antioxidant and wrinkle-improving efficacy of 5 synthesized gallic acids conjugated with LVH, IVH, KTTKS, YGGFM, and YGGFLRKYP respectively, we observed the expression of genes related to wrinkle improvement using DPPH radical scavenging activity and real-time PCR. As a result, all 5 derivatives had excellent free radical scavenging effects. The expression level of genes involved collagen synthesis also increased, and the secreted peptides during collagen production contributed to their antioxidant and wrinkle improving effects. These results mark the potential use of gallic acid peptide derivatives as a cosmetic ingredient for anti-oxidation and wrinkle improvement.

• Journal of Microbiology and Biotechnology
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• v.25 no.10
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• pp.1589-1598
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• 2015

In this work, the anti-aging skin effects of bacteriochlorophyll a isolated from Rhodobacter sphaeroides are first reported, with notably low cytotoxicity in the range of 1% to 14% in adding 0.00078 (% (w/w)) of the extracts, compared with the normal growth of both human dermal fibroblast and keratinocyte cells without any treatment as a control. The highest production of procollagen from human fibroblast cells (CCD-986sk) was observed as 221.7 ng/ml with 0.001 (% (w/w)) of bacteriochlorophyll a, whereas 150 and 200 ng/ml of procollagen production resulted from addition of 0.001 (% (w/w)) of the photosynthetic bacteria. The bacteriochlorophyll-a-induced TNF-α production increased to 63.8%, which was lower secretion from HaCaT cells than that from addition of 0.00005 (% (w/w)) of bacteriochlorophyll a. Additionally, bacteriochlorophyll a upregulated the expression of genes related to skin anti-aging (i.e., keratin 10, involucrin, transglutaminase-1, and MMPs), by up to 4-15 times those of the control. However, crude extracts from R. sphaeroides did not enhance the expression level of these genes. Bacteriochlorophyll a showed higher antioxidant activity of 63.8% in DPPH free radical scavenging than those of water, ethanol, and 70% ethanol extracts (14.0%, 57.2%, and 12.6%, respectively). It was also shown that the high antioxidant activity could be attributed to the skin anti-aging effect of bacteriochlorophyll a, although R. sphaeroides itself would not exhibit significant anti-aging activities.

• Nutrition Research and Practice
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• v.10 no.1
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• pp.3-10
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• 2016

BACKGROUND/OBJECTIVES: Oligonol, mainly found in lychee fruit, is an antioxidant polyphenolic compound which has been shown to have anti-inflammatory and anti-cancer properties. The detailed mechanisms by which oligonol may act as an anti-aging molecule have not been determined. MATERIALS/METHODS: In this study, we evaluated the ability of oligonol to modulate sirtuin (SIRT) expression in human lung epithelial (A549) cells. Oligonol was added to A549 cells and reactive oxygen species production, mitochondrial superoxide formation, and p21 protein levels were measured. Signaling pathways activated upon oligonol treatment were also determined by western blotting. Furthermore, the anti-aging effect of oligonol was evaluated ex vivo in mouse splenocytes and in vivo in Caenorhabditis elegans. RESULTS: Oligonol specifically induced the expression of SIRT1, whose activity is linked to gene expression, metabolic control, and healthy aging. In response to influenza virus infection of A549 cells, oligonol treatment significantly up-regulated SIRT1 expression and down-regulated viral hemagglutinin expression. Oligonol treatment also resulted in the activation of autophagy pathways and the phosphorylation of AMP-activated protein kinase (AMPK). Furthermore, oligonol-treated spleen lymphocytes from old mice showed increased cell proliferation, and mRNA levels of SIRT1 in the lungs of old mice were significantly lower than those in the lungs of young mice. Additionally, in vivo lethality assay revealed that oligonol extended the lifespan of C. elegans infected with lethal Vibrio cholerae. CONCLUSIONS: These data demonstrated that oligonol may act as an anti-aging molecule by modulating SIRT1/autophagy/AMPK pathways.

• Nutrition Research and Practice
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• v.12 no.5
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• pp.378-386
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• 2018

BACKGROUND/OBJECTIVES: Benign prostatic hypertrophy (BPH) is a major cause of abnormal overgrowth of the prostate mainly in the elderly. Corni Fructus has been reported to be effective in the prevention and treatment of various diseases because of its strong antioxidant effect, but its efficacy against BPH is not yet known. This study was designed to evaluate the therapeutic efficacy of Corni Fructus water extract (CF) in testosterone-induced BPH rats. MATERIALS/METHODS: To induce BPH, rats were intraperitoneal injected with testosterone propionate (TP). Rats in the treatment group were orally administered with CF with TP injection, and finasteride, which is a selective inhibitor of $5{\alpha}$-reductase type 2, was used as a positive control. RESULTS: Our results showed that the increased prostate weight and histopathological changes in BPH model rats were suppressed by CF treatment. CF, similar to the finasteride-treated group, decreased the levels of testosterone and dihydrotestosterone by TP treatment in the serum, and it also reduced $5{\alpha}$-reductase expression and concentration in prostate tissue and serum, respectively. In addition, CF significantly blocked the expression of the androgen receptor (AR), AR co-activators, and proliferating cell nuclear antigen in BPH rats, and this blocking was associated with a decrease in prostate-specific antigen levels in serum and prostate tissue. CONCLUSIONS: These results suggest that CF may weaken the BPH status through the inactivation of at least $5{\alpha}$-reductase and AR activity and may be useful for the clinical treatment of BPH.

• The Journal of the Korea Contents Association
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• v.21 no.12
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• pp.408-422
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• 2021

In this study, the relationship between trust and purchase intention, which is an outcome variable, was empirically verified by discovering the trust-forming factors of anti-aging products and developing measurement variables. In addition to the existing trust-forming factors such as perceived quality, perceived reputation, brand recognition, and customization, a newly discovered factor is 'accredited certification'. Since the anti-aging industry in Korea is an industry that directly affects consumer health, it was determined that the existing trust-forming factors had limitations in building consumer trust, and a new measure was discovered. This study conducted a survey on anti-aging product consumers and analyzed the solidity and relationship of the questions. As a result of the analysis, it was found that perceived quality, brand recognition, customization, and accredited certification among the anti-aging product trust-forming factors had a positive (+) effect on trust, and perceived reputation had a negative (-) effect on trust. appeared to affect It was found that there was a positive (+) effect between trust and purchase intention, which are the trailing variables. This study proved the meaningful relationship between trust-forming factors and trust by strategically developing and empirically and practically examining meaningful and effective trust-forming factors and measurement items. At the same time, this study is expected to significantly contribute to the establishment of marketing strategies related to anti-aging products in the future by discovering key factors for forming trust that are important for marketing in the anti-aging industry.