Biorenovation is a method for converting materials using the enzyme properties of microorganisms. Natural products converted by that method increase physiological activity or reduce cytotoxicity. In this study, we investigated the anti-inflammatory activity of crypsinus hastatus prothallium (CH) and biorenovated CH prothallium (CHB) using RAW 264.7 cells stimulated with lipopolysaccharide (LPS). CHB inhibited the production of nitric oxide, prostaglandin E2 and cytokines (interleukin-6, interleukin-1β, tumor necrosis factor-α) compared to CH at a concentration of 50-200 ㎍/mL. In addition, CHB concentration of 200 ㎍/mL inhibited the expression of inducible nitric oxide synthase and cyclooxygenase-2 protein by LPS stimulation to the level of the untreated control group. These results indicate that CHB could be a novel anti-inflammatory agent for cosmetic and pharmaceutical ingredients.It also suggests that the application of biorenovation has potential usefulness in developing anti-inflammatory materials. It also suggests that the application of bio-renovation has potential usefulness in the development of inflammatory material. We applied Biorenovation technology to Distylium racemosum extract (DR) to generate Distylium racemosum biorenovation product (DRB), and investigated the anti-inflammatory properties of DRB in lipopolysaccharide (LPS)-treated RAW264.7 macrophages. We are applying technology to Biorenovation Distylium racemosum extract (DR) Distylium racemosum was to create a biorenovation product (DRB), lipopolysaccharide (LPS) investigated the anti-inflammatory properties of DRB in RAW264.7 macrophages treated for.
Broussonetia kazinoki twig extract (BKT) is recognized for its antioxidant and anti-cancer effects and natural whitening properties. So, it is used as a raw material for cosmetics. B. kazinoki twig is also an edible raw material. B. kazinoki has been used in Asia for paper production and oriental medicine, has anti-diabetic effects, and contains various flavonoids and alkaloids. In this study, to evaluate the efficacy of BKT on allergic skin inflammatory responses, we investigated its effects on factors related to skin inflammation in HaCaT keratinocytes and allergic responses in RBL-2H3 cells. There was no cytotoxicity of the 70% ethanol extract against HaCaT and RBL-2H3 cells. In HaCaT cells, stimulation with tumor necrosis factor-alpha (TNF-𝛼) and interferon-gamma (IFN-𝛾) increased the production of several chemokines, including thymus and activation-regulated chemokine (TARC), macrophage-derived chemokine (MDC), and regulated on activation, normal T cell expressed and secreted (RANTES). However, it was observed that this elevation was notably mitigated in a concentration-dependent manner upon treatment with BKT. Furthermore, BKT treatment demonstrated a significant reduction of 𝛽-hexosaminidase and inflammatory cytokines TNF-𝛼 and IL-4 in IgE-sensitized RBL-2H3 cells. Thus, it is expected that BKT can be used as a natural cosmetic and food ingredient that effectively suppresses allergic inflammatory reactions.
Journal of the Korea Society of Computer and Information
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v.29
no.1
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pp.187-194
/
2024
In this study, we examined the effects of Rubus crataegifolius leaf on the inhibition of differentiation and adipogenesis of 3T3-L1 preadipocytes to confirm their potential for use as an anti-obesity functional material. Rubus crataegifolius leaves water extracted using hot water were then concentrated for use, with an extract yield of 4.76%. The result of measuring the rate of 3T3-L1 cell survival of Rubus crataegifolius leaf extract (RCLE) showed growth inhibition of 13% at a concentration of 1,000 ㎍/mL. Thus, in this study, experiments were performed using RCLE treatment concentrations up to 500 ㎍/mL. Production of triglycedie in 3T3-L1 cells showed a dose-dependent decrease, and the rate of reduction was 28.7, 40.8, and 51.6% at concentrations of 100, 300, and 500 ㎍/mL, respectively, compared to the control group. In addition, the results confirmed that suppression of lipogenesis was achieved by suppressing the expression of peroxisome proliferator-activated receptor γ (PPAR γ), CCAAT/enhancer-binding protein α (C/EBP α), sterol regulatory element-binding protein-1c (SREBP-1c), fatty acid synthase (FAS), acetyl-CoA carboxylase (ACC), and increasing the expression of p-activated protein kinase (p-AMPK). Based on these results, it is believed that Rubus crataegifolius leaf extract can be used in the effort to manage obesity by regulating factors related to adipocyte differentiation and adipogenesis.
Hyehyun Hong;Tae-Jin Park;Yu-Jung Lee;Jung-Hwan Kim;Seung-Young Kim
Journal of Applied Biological Chemistry
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v.66
/
pp.197-203
/
2023
Callus cultivation is a method for producing a large amount of tissue of a plant in the laboratory, regardless of the environment. Lycoris chejuensis, a plant species native to jeju island, is a member of the Lycoris family has been used as a traditional medicine for the treatment of diverse diseases. In this study, we evaluated anti-inflammatory effect of biorenovated Lycoris chejuensis callus (LCB) in lipopolysaccharide (LPS)-induced RAW264.7 cells. As a result, LCB was less toxic to the cells in the concentration range of 25, 50, and 100 ㎍/mL as shown by the improved viability of LCB treated cells than compared to Lycoris chejuensis callus (LC) treatment. In addition, LCB inhibited the generation of NO and prostaglandin E2 through the suppression of inducible nitric oxide synthase and cyclooxygenase-2 protein expression. LCB also attenuated the expression of interleukin-1β, interleukin-6 and tumor necrosis factor-α induced by LPS. The results suggest that LCB has anti-inflammatory activity on the LPS-induced inflammatory response and may be suitable for the development of potent functional cosmetic material.
Sun Young Yoon;Bong Hwan Kim;Young Ah Jang;Se Gie Kim
Journal of Applied Biological Chemistry
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v.66
/
pp.424-435
/
2023
As a result of this study, DPPH radical scavenging activity was 81.8% at a concentration of 100 ㎍/mL of Alpinia galanga L. rhizome 70% ethanol extract (AG.E), and ABTS+ radical scavenging activity was confirmed to be 99.8%, similar to L-Ascorbic acid (AA), at a low concentration of 50 ㎍/mL AG.E. To measure anti-aging activity, collagenase and elastase inhibitory activities were measured and AG.E showed higher inhibitory effects than epigallocatechin gallate (EGCG) starting at a low concentration of 50 ㎍/mL. In particular, AG.E showed inhibitory effects more than three times that of EGCG at a concentration of 500 ㎍/mL. In order to verify anti-aging effect of AG.E in CCD-986sk cell, good anti-aging effect was obtained in various experiments stimulated with UVB. In a gene expression analysis experiment using RT-PCR, the COL1A mRNA expression level was found to increase 2.90 times compared to no addition at a low concentration of 20 ㎍/mL AG.E, confirming the possibility of developing it as a good functional material related to anti-aging. As a basic study on temporal biological activity preservation ratio of material when applied to formulations, AG.E, and AA were added to a stable W/O type emulsion and stored in a thermostat at 25 ℃ for 60 days. As a result of measuring DPPH and ABTS+ radical scavenging activities on the 1st, 30th, and 60th days, it was confirmed that antioxidant effects are maintained at a high level over time in formulations.
Kim, Mi-Ae;Kim, Dong-Kyu;Yang, Hyeon-Jong;Yoo, Young;Ahn, Youngmin;Park, Hae-Sim;Lee, Hyun Jong;Jeong, Yi Yeong;Kim, Bong-Seong;Bae, Woo Yong;Jang, An-Soo;Park, Yang;Koh, Young-Il;Lee, Jaechun;Lim, Dae Hyun;Kim, Jeong Hee;Lee, Sang Min;Kim, Yong Min;Jun, Young Joon;Kim, Hyo Yeol;Kim, Yunsun;Choi, Jeong-Hee;Work Group for Rhinitis, the Korean Academy of Asthma,
Allergy and Clinical Immunology
Allergy, Asthma & Immunology Research
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v.10
no.6
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pp.648-661
/
2018
Purpose: Pollen-food allergy syndrome (PFAS) is an immunoglobulin E (IgE)-mediated allergy in pollinosis patients caused by raw fruits and vegetables and is the most common food allergy in adults. However, there has been no nationwide study on PFAS in Korea. In this study, we investigated the prevalence and clinical characteristics of PFAS in Korea. Methods: Twenty-two investigators participated in this study, in which patients with allergic rhinoconjunctivitis and/or bronchial asthma with pollen allergy were enrolled. The questionnaires included demographic characteristics, a list of fruits and vegetables, and clinical manifestations of food allergy. Pollen allergy was diagnosed by skin prick test and/or measurement of the serum level of specific IgE. Results: A total of 648 pollinosis patients were enrolled. The prevalence of PFAS was 41.7% (n = 270). PFAS patients exhibited cutaneous (43.0%), respiratory (20.0%), cardiovascular (3.7%) or neurologic symptoms (4.8%) in addition to oropharyngeal symptoms. Anaphylaxis was noted in 8.9% of the PFAS patients. Seventy types of foods were linked to PFAS; e.g., peach (48.5%), apple (46.7%), kiwi (30.4%), peanut (17.4%), plum (16.3%), chestnut (14.8%), pineapple (13.7%), walnut (14.1%), Korean melon (12.6%), tomato (11.9%), melon (11.5%) and apricot (10.7%). Korean foods such as taro/taro stem (8.9%), ginseong (8.2%), perilla leaf (4.4%), bellflower root (4.4%), crown daisy (3.0%), deodeok (3.3%), kudzu root (3.0%) and lotus root (2.6%) were also linked to PFAS. Conclusions: This was the first nationwide study of PFAS in Korea. The prevalence of PFAS was 41.7%, and 8.9% of the PFAS patients had anaphylaxis. These results will provide clinically useful information to physicians.
The purpose of this study was to find a countermeasure to the U.S. import refusals for the Korean healthcare and life sciences industry. To this end, an analysis of trends during the pandemic was conducted using the KITA Border Rejection Database, which includes information on items and types of import refusals. The reason for rejection was also analyzed according to the FDA violation codes. The degree of countermeasure for import refusals was identified by measuring the unit rejection rate (URR). The results of the analysis showed that the major U.S. import refusals for the Korean healthcare and life sciences industry had expanded from contact lenses to COVID-19 diagnostic kits and drugs after the pandemic broke out. The major reasons for import refusals were non-compliance with the Predicate Device and Drugs Act and non-approval by the FDA for products and facilities. On the other hand, the unit rejection rate (URR) of major items in the Korean healthcare and life sciences industry was measured higher than the industry average. The results therefore showed a low level of response to U.S. import refusals. The results of the analysis of reasons for import refusals by item according to FDA violation codes were as follows. First of all, the main violation for contact lenses and COVID-19 diagnostic kits corresponded to misbranding. This was often due to the fact that Korean companies did not provide the relevant notices and information required by the FDA. Many cases also failed to demonstrate a substantial equivalency compared to predicate devices already on the market. On the other hand, applications for new unapproved drugs were not accepted as they had yet to pass relevant regulations that would prove their safety and efficacy. In conclusion, import refusals for the Korean healthcare and life sciences industry were found to be closely related to technical barriers to trade (TBT).
Kim, Ji-Seop;Hong, Jin-Ho;Jeon, Mi-Kyeong;Kim, In-Young
Journal of the Korean Applied Science and Technology
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v.34
no.3
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pp.545-554
/
2017
This study is concerned with the stability of liquid crystal forming emulsifier with localized depend on change of pH using liquid crystal forming agent of advanced company. The liquid crystal emulsifying agent was localized using Sugar Crystal-LC (bio-tech Co., Ltd., Korea), and comparative samples were measured by using Nikkomulese-LC (Nikko Camicarls, Japan) and Alacel-LC (Croda Camicarls, UK). Liquid crystal formation was confirmed microscopically to show the formation of liquid crystal structure at acidic (pH=4.2), neutral (pH=7.0) and alkaline (pH=11.7). The particles of the liquid crystal were observed with a polarizing microscope according to the stirring speed. The stirring time was all the same for 3 minutes with a homo-mixer, and the stirring speed was increased to 2500 rpm, 3500 rpm and 4500 rpm to observe the liquid crystal state. As a result, it was found that the Korean surfactant was more stable and clear liquid crystal structure was formed than the two foreign acids. In the case of the UK in acid zone, the emulsion particle size was uniform and unstable. In the case of Japanese surfactant, it has similar structure and performance to those of localized Korean. It was found that Korean surfactant had superior emulsifying performance in acid zone compared with foreign products. It is possible to develop various formulations such as liquid crystal cream, lotion, eye cream, etc. using Sugar Crystal-LC emulsifier as an application cosmetic field, and it is expected that it can be widely applied as emulsifying technology for skin care external application in the pharmaceutical industry and the pharmaceutical industry as well as the cosmetics industry.
In this review paper, previous studies on layered double hydroxides (LDHs) published in the Korean Citation Index (KCI) were examined to investigate a research trend for LDHs in Korea. Since the first publication in 2002, 160 papers on LDHs have been published until January 2023. Among the 31 academic fields, top 5 fields appeared in the order of chemical engineering, chemistry, materials engineering, environmental engineering, and physics. The chemical engineering shows the highest record of published paper (71 papers) while around 10 papers have been published in the other four fields. All papers were reclassified into 15 research fields based on the industrial and academic purposes of using LDHs. The top 5 in these fields are in order of environmental purification materials, polymer catalyst materials, battery materials, pharmaceutical/medicinal materials, and basic physicochemical properties. These findings suggest that researches on the applications of LDH materials in the academic fields of chemical engineering and chemistry for the improvement of their functions such as environmental purification materials, polymer catalysts, and batteries have been being most actively conducted. The application of LDHs for cosmetic and agricultural purposes and for developing environmental sensors is still at the beginning of research. Considering a market-potential and high-efficiency-eco-friendly trend, however, it will deserve our attention as emerging application fields in the future. All reclassified papers were summarized in our tables and a supplementary file, including information on applied materials, key results, characteristics and synthesis methods of LDHs used. We expect that our findings of overall trends in LDH research in Korea can help design future researches with LDHs and suggest policies for resources and energies as well as environments efficiently.
Kim, Joung Hee;Lee, Syng-Ook;Do, Kook Bae;Ji, Won Dae;Kim, Sun Gun;Back, Young Doo;Kim, Keuk-Jun
Korean Journal of Clinical Laboratory Science
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v.50
no.1
/
pp.37-43
/
2018
Chamaecyparis obtusa (CO) has recently been attracting attention because of its beneficial effects on skin allergies, atopic dermatitis, and skin diseases, such as acne and eczema. In the present study, the extract from CO leaf grown in Jangseong gun, Jeollanam-do, Korea was evaluated for its anti-oxidant, anti-inflammatory, and anti-allergic effects in vitro. The total polyphenol content of the CO leaf extract was $25.89{\pm}0.31mg$ gallic acid equivalents (GAE)/g. Gas-chromatography mass-spectrometry (GC-MS) analysis revealed the presence of six compounds in the CO leaf extract: ${\alpha}-terpinene$ (3.03 mg/g), ${\alpha}-terpineol$ (9.48 mg/g), limonene (5.96 mg/g), borneol (59.78 mg/g), myrcene (4.85 mg/g), and sabinene (11.31 mg/g). The $RC_{50}$ values of the CO leaf extract for $H_2O_2$ and ABTS radical were $5.47{\pm}0.13mg/mL$ and $4.00{\pm}0.01mg/mL$, respectively. In addition, the CO leaf extract showed significant inhibitory effects on lipopolysaccharide-induced nitric oxide production in RAW 264.7 cells and IgE-induced release of ${\beta}-hexosaminidase$ (degranulation) in mast-cell like RBL-2H3 cells. The cell viability assay showed that the CO leaf extract ($100{\sim}800{\mu}g/mL$) did not affect the viability of human normal skin fibroblast CCD-986sk cells significantly. Overall, these results suggest that the CO leaf extract is a potential functional cosmetic ingredient that can exert anti-oxidant, anti-inflammatory, and anti-allergic effects.
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