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The Skin-Whitening Effects of Padina Gymnospora and Its Active Compound, Fucosterol 裸子铁板藻及其活性成分木甾醇的美白作用
Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.7.598
H. Kim, J. Bak, H. Kang, Min-Ji Kim, Ji-Min Kim, Kyungsung Min, S. Park, J. Pyo, Yun-Sik Choi
Padina gymnospora is a brown algae of the class Phaeophyceae. It has been established that P. gymnospora ameliorates amyloid-β-induced neuropathology and has an anticoagulation effect, but this study was designed to estimate its skin-whitening effect and identify its active component. The ingredients of P. gymnospora were extracted with ethanol and its activity was compared with arbutin. First, the P. gymnospora extract was observed to inhibit tyrosinase activity in a dose-dependent manner, tyrosinase being the rate-limiting enzyme of melanin synthesis. Notably, where 200 μM of arbutin inhibited tyrosinase activity by 58.1%, P. gymnospora extract (0.5%) achieved 76.7%. The P. gymnospora extract also significantly reduced α-melanocyte-stimulating hormone-induced TRP-1 and TRP-2 mRNA expression. In addition, it significantly inhibited melanin synthesis in B16F10 melanoma cells. We identified the 0.66% fucosterol content that inhibited melanin synthesis as comparable to that of arbutin. Additionally, we tested the potential cytotoxicity of P. gymnospora by MTT and LDH release assay and found that the extract significantly reduced LDH release in CCD-986sk cells. These results indicate that P. gymnospora extract could be a potential active ingredient of cosmetics with a skinwhitening effect.
裸子藻是褐藻纲的一种褐藻。已证实裸子假单胞菌可改善淀粉样蛋白β诱导的神经病理,并具有抗凝作用,但本研究旨在评估其皮肤美白作用并鉴定其活性成分。用乙醇提取裸子孢子菌的主要成分,并与熊果苷进行活性比较。首先,裸子霉提取物呈剂量依赖性地抑制酪氨酸酶活性,酪氨酸酶是黑色素合成的限速酶。值得注意的是,200 μM熊果苷对酪氨酸酶活性的抑制率为58.1%,而裸子孢子菌提取物(0.5%)对酪氨酸酶活性的抑制率为76.7%。裸子霉提取物还能显著降低α-黑色素细胞刺激激素诱导的TRP-1和TRP-2 mRNA的表达。此外,它还能显著抑制B16F10黑色素瘤细胞的黑色素合成。我们鉴定了0.66%的focusterol含量对黑色素合成的抑制作用与熊果苷相当。此外,我们还通过MTT和LDH释放试验测试了裸子霉的潜在细胞毒性,发现该提取物显著降低了CCD-986sk细胞中LDH的释放。这些结果表明,裸子孢子菌提取物可能是具有美白作用的化妆品的潜在活性成分。
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引用次数: 1
Association of Melanocortin 4 Receptor (MC4R) Genotypes with Fatty Acid Compositions in an Intercross Population between Duroc and Jeju Native Pigs 杜洛克和济州地方猪杂交群体中黑素皮质素4受体(MC4R)基因型与脂肪酸组成的关系
Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.1.58
Yong-Jun Kang, Sang-Geum Kim, Su-yeon Kim, Shin Muncheol, Woo Jehun, Kim Namyeom, Shin Sangmin, Choi Jaeyeong, Yoo Jihyeon, Park Namgeon, Yang Byeongcheol, Cho Incheol
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引用次数: 1
Isolation of Microorganisms and Development of Microbial Augmentation for Treatment of Industrial Wastewater containing Ammonium Nitrogen 含氨氮工业废水微生物的分离与微生物强化研究
Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.2.129
Myoung-Eun Lee, Seo-Jin Mun, Do-Hyuck Kwon, H. Suh
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引用次数: 0
A Study on the Biological Activity of Allium cepa Extract in Vivo 葱提取物的体内生物活性研究
Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.3.267
Jin Young Lee
This study was conducted to assess the effect of highly concentrated onion intake on rodents. The experimental animals were divided two groups as follows; water administered group (CON) and Allium cepa administered group (ACE). The ACE group showed a slightly increases in the number of erythrocytes (RBC), hemoglobin (HGB), hematocrit (Hct) levels compared to the control group (p< 0.05). Hemoglobin, monocyte, lymphocyte and neutrophil had no significant change (p>0.05) in ACE group and control group. The analysis of glutamic oxaloacetic transaminase (GOT) and glutamic pyruvic transaminase (GPT) levels showed a significant decrease in ACE group compared to the control group (p<0.05). The blood glucose, total protein, HDL-cholesterol were slightly high in ACE group, while triglyceride, total cholesterol levels were lower in ACE group compared to the control group (p<0.05). The levels of cytokines (interluekin-1α (IL-1α), interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-10 (IL-10), interferon-γ (INF-γ), interleukin-18 (IL-18), interleukin-2 (IL-2), granulocyte-macrophage colony-stimulating factor (GM-CSF)) involved in immunity and inflammation in liver tissue and blood have all been confirmed to be within normal range. These findings could be used as basic data to show that highly concentrated dietary onion extract is not toxic to hematological indicators and immune functions.
本研究旨在评估高浓度洋葱摄入对啮齿动物的影响。实验动物分为两组:水给药组(CON)和葱给药组(ACE)。ACE组红细胞(RBC)、血红蛋白(HGB)、红细胞压积(Hct)水平较对照组略有升高(p< 0.05)。ACE组和对照组血红蛋白、单核细胞、淋巴细胞和中性粒细胞无显著变化(p>0.05)。谷草转氨酶(GOT)和谷丙转氨酶(GPT)水平分析显示,ACE组与对照组相比显著降低(p<0.05)。ACE组血糖、总蛋白、高密度脂蛋白胆固醇水平略高于对照组,甘油三酯、总胆固醇水平低于对照组(p<0.05)。肝组织和血液中参与免疫和炎症的细胞因子(白细胞介素-1α (IL-1α)、白细胞介素-1β (IL-1β)、肿瘤坏死因子-α (TNF-α)、白细胞介素-6 (IL-6)、白细胞介素-10 (IL-10)、干扰素-γ (INF-γ)、白细胞介素-18 (IL-18)、白细胞介素-2 (IL-2)、粒细胞-巨噬细胞集落刺激因子(GM-CSF))水平均在正常范围内。这些结果可作为证明高浓度洋葱提取物对血液学指标和免疫功能无毒性的基础数据。
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引用次数: 1
Recent Research Progress in the Microbial Production of Aromatic Compounds Derived from L-Tryptophan 微生物生产l -色氨酸衍生芳香族化合物的研究进展
Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.10.919
Ji-yeong Lee, Jin-ho Lee
Aromatic compounds are widely used in the chemical, food, polymer, cosmetic, and pharmaceutical industries and are produced by mainly chemical synthesis using benzene, toluene, and xylene or by plant extraction methods. Due to many rising threats, including the depletion of fossil fuels, global warming, the strengthening of international environmental regulations, and the excessive harvesting of plant resources, the microbial production of aromatic compounds using renewable biomass is regarded as a promising alternative. By integrating metabolic engineering with synthetic and systems biology, artificial biosynthetic pathways have been reconstituted from L-tryptophan biosynthetic pathway in relevant microorganisms, such as Escherichia coli and Corynebacterium glutamicum, enabling the production of a variety of value-added aromatic compounds, such as 5-hydroxytryptophan, serotonin, melatonin, 7-chloro-L-tryptophan, 7-bromo-L-tryptophan, indigo, indirubin, indole-3-acetic acid, violacein, and dexoyviolacein. In this review, we summarize the characteristics, usage, and biosynthetic pathways of these aromatic compounds and highlight the latest metabolic engineering strategies for the microbial production of aromatic compounds and suitable solution strategies to overcome problems in increasing production titers. It is expected that strain development based on systems metabolic engineering and the optimization of media and bioprocesses using renewable biomass will enable the development of commercially viable technologies for the microbial production of many aromatic compounds.
芳香族化合物广泛应用于化工、食品、聚合物、化妆品和制药工业,主要通过苯、甲苯和二甲苯的化学合成或植物提取方法生产。由于化石燃料的枯竭、全球变暖、国际环境法规的加强以及植物资源的过度采收等诸多威胁日益加剧,利用可再生生物质生产芳香族化合物被认为是一种很有前途的替代方法。通过将代谢工程与合成生物学和系统生物学相结合,在大肠杆菌和谷氨酸棒杆菌等相关微生物中构建了l -色氨酸生物合成途径的人工生物合成途径,可生产5-羟色氨酸、5-羟色胺、褪黑素、7-氯- l -色氨酸、7-溴- l -色氨酸、靛蓝、靛红、吲哚-3-乙酸、紫罗兰素和dexoyviolacein等多种高附加值芳香族化合物。本文综述了这些芳香族化合物的特点、用途和生物合成途径,重点介绍了微生物生产芳香族化合物的最新代谢工程策略和克服提高生产滴度问题的合适溶液策略。预计基于系统代谢工程的菌株开发和使用可再生生物质的培养基和生物过程的优化将使开发商业上可行的技术用于微生物生产许多芳香族化合物。
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引用次数: 1
The Potential Therapeutic Effects of Endothelial Progenitor Cells in Ischemic Cardiovascular Disease 内皮祖细胞在缺血性心血管疾病中的潜在治疗作用
Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.7.651
Da Yeon Kim, Bo Min Kim, So Jung Kim, Jin Hee Choi, Sang-Mo Kwon
Cardiovascular disease is one of the leading causes of death across the world, and gold-standard treatments such as percutaneous coronary intervention and artery bypass grafting have various limitations including myocardial damage and subsequent maladaptive cardiac remodeling. To overcome this, stem-cell therapies are emerging as a promising strategy for cardiovascular regeneration. Endothelial progenitor cells (EPCs) have high potential to proliferate and differentiate into endothelial cells for vascularization and tissue regeneration, and several clinical trials have explored EPC function in tissue repair in relation to clinical safety and improving cardiac function. Consequently, EPC has been suggested as a feasible stem-cell therapy. However, autologous EPC transplantation in cardiovascular disease patients is restricted by risk factors such as age, smoking status, and hypertension that lead to reduced bioactivity in the EPCs. New approaches for improving EPC function and stem-cell efficacy have therefore been suggested, including cell priming, organoid culture systems, and enhancing transplantation efficiency through 3D bioprinting methods. In this review, we provide a comprehensive understanding of EPC characteristics, therapeutic approaches, and the current state of clinical research into EPCs as stem-cell therapy for cardiovascular disease.
心血管疾病是世界范围内导致死亡的主要原因之一,经皮冠状动脉介入治疗和动脉旁路移植术等金标准治疗存在各种局限性,包括心肌损伤和随后的心脏重构不适应。为了克服这一点,干细胞疗法正在成为一种有希望的心血管再生策略。内皮祖细胞(Endothelial progenitor cells, EPCs)在血管形成和组织再生中具有高度增殖和分化为内皮细胞的潜力,一些临床试验已经探索了EPCs在组织修复中的功能与临床安全性和改善心功能的关系。因此,EPC被认为是一种可行的干细胞治疗方法。然而,心血管疾病患者的自体EPC移植受到年龄、吸烟状况和高血压等危险因素的限制,导致EPCs的生物活性降低。因此,研究人员提出了改善EPC功能和干细胞功效的新方法,包括细胞启动、类器官培养系统和通过生物3D打印方法提高移植效率。在这篇综述中,我们提供了EPCs的特点,治疗方法和临床研究的现状EPC干细胞治疗心血管疾病的全面了解。
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引用次数: 0
The Application of Single Nucleotide Polymorphism Markers for Discrimination of Sweet Persimmon Cultivars 单核苷酸多态性标记在甜柿品种鉴别中的应用
Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.7.614
Yeon-Ok Park, Seong-Tae Choi, J. Son, Eun-Gyeong Kim, G. Ahn, J. Park, Wan-Kyu Joung, Y. Jang, Dong-Wan Kim
The recent development of next-generation sequencing technology has enabled increased genomic analysis, but very few single nucleotide polymorphism (SNP) markers applicable to sweet persimmon (Diospyros kaki Thunb.) cultivars have been identified. In this study, SNP primers developed from five pollination-constant astringent (PCA) persimmons native to Korea were applied to discriminate between cultivars and verify their usability. The polymerase chain reactions of 19 SNP primers developed by Jung et al. were checked, with 11 primers finally selected. The other eight were very difficult to analyze in the agarose gel electrophoresis and QIAxcel Advanced System used in this experiment and were therefore excluded. The 11 SNP primers were applied through first and second verification to 76 cultivars and collection lines including 20 pollination-variant non-astringent (PVNA), 30 pollination-constant non-astringent (PCNA), 20 PCA, and six pollination-variant astringent (PVA). Of these, 38 were indistinguishable (eight PVNA, 18 PCNA, nine PCA, and three PVA). However, the results of applying the 11 SNP primers to new sweet persimmon cultivars, namely Gamnuri, Dannuri, Hongchoo, Jamisi, and Migamjosaeng, showed that they have the potential to be used as a unique marker for simultaneously determining between them.
近年来,新一代测序技术的发展使基因组分析得以增加,但很少有适用于甜柿子品种的单核苷酸多态性(SNP)标记被鉴定出来。本研究利用韩国产5个恒花柿(PCA)的SNP引物进行品种间的鉴定,验证了引物的可用性。对Jung等人开发的19条SNP引物进行聚合酶链反应检查,最终筛选出11条引物。另外8个在琼脂糖凝胶电泳和本实验使用的QIAxcel Advanced System中很难分析,因此被排除在外。将11条SNP引物分别应用于76个品种和收集系,其中包括20个授粉变异不收敛型(PVNA)、30个授粉恒定不收敛型(PCNA)、20个PCA和6个授粉变异收敛型(PVA)。其中38例无法区分(8例PVNA, 18例PCNA, 9例PCA, 3例PVA)。然而,将这11个SNP引物应用于甘奴里、丹奴里、红秋、贾米斯和密甘乔生等甜柿新品种的结果表明,它们具有作为甜柿新品种间同时鉴定的独特标记的潜力。
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引用次数: 0
내건성 및 BPH 내성 계통의 육성을 위한 농업형질 고정여부 조사 为培育耐干性和BPH耐药性,调查农业性状是否固定
Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.9.798
이소영, 김은경, 박재령, 김경민
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引用次数: 0
Functional Chemical Components and Their Biological Activities of Houttuynia cordata and Lespedeza cuneata 鱼腥草和胡枝子的功能化学成分及其生物活性研究
Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.2.169
S. Park, H. Sohn, C. Lee, H. Hwang, S. Park, Jongsik Kim
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引用次数: 0
Reversine, Cell Dedifferentiation and Transdifferentiation 逆转,细胞去分化和转分化
Pub Date : 2020-01-01 DOI: 10.5352/JLS.2020.30.4.394
Y. Moon
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引用次数: 0
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Journal of Life Science
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