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Antioxidant and Anticancer Activities of Methanolic Extracts from Indigenous Freshwater Green Microalgae 本土淡水绿色微藻甲醇提取物的抗氧化和抗癌活性
Pub Date : 2021-06-30 DOI: 10.7841/ksbbj.2021.36.2.154
Hyun-Jin Jang, Soon-Ah Lee, Eun-Jin Hong, Z. Kim, K. J. Yim, B. Jo, S. Nam, Y. Nam, B. Hwang, C. Lee, J. Jung, Sung Hwan Woo
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引用次数: 1
Melanogenesis Inhibitory Effects of Phryma leptostachya Callus using Biorenovation in B16F10 Melanoma Cells B16F10黑色素瘤细胞生物修复法对细绒羊瘤愈伤组织黑色素生成的抑制作用
Pub Date : 2021-03-31 DOI: 10.7841/KSBBJ.2021.36.1.42
Kyung-Mi Lee, Taejin Park, E. Jie, Sukweon Kim, Dong-Hwan Han, Seung-Young Kim
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引用次数: 3
Chondrogenic Differentiation Potential of CD271 Positive Mesenchymal Stem Cells through Electrical Stimulation 电刺激对CD271阳性间充质干细胞成软骨分化潜能的影响
Pub Date : 2021-03-31 DOI: 10.7841/KSBBJ.2021.36.1.68
So Yeon Jeong, Se-A Lee, N. Gu, Seong-In Lim, Jienny Lee, Yoon-Hee Lee, B. Hyun
Mesenchymal stem cells (MSCs) exhibit self-renewing capacity and multi-lineage differentiation potential. CD271 has been identified as a marker of the most homogeneous MSCs subset. In this study, we separated CD271 positive MSCs (CD271-MSCs) from canine adipose tissue-derived MSCs (AD-MSCs) using immunomagnetic selection method. Both CD271-MSCs and AD-MSCs showed similar morphology and expressed common immunophenotypic markers (CD34, CD44, and CD45). However, CD271-MSCs and AD-MSCs exhibited difference in chondrogenic differentiation potential. Specifically, CD271-MSCs exhibited increased expression levels of chondrocyte specific markers, collagen type II alpha 1 (COL2A1) and Aggrecan compared to AD-MSCs. Also, electrical stimulation (ES)-treated CD271-MSCs have a greater capacity for expressing heat shock protein 70 (HSP70), COL2A1, and Aggrecan compared to control without exogenous differentiation condition. This study might contribute to the differentiation potential of homogenous MSCs into cartilage cells by specific ES condition in the absence of exogenous differentiation agents.
间充质干细胞(MSCs)具有自我更新能力和多系分化潜力。CD271已被确定为最均匀的MSCs亚群的标记物。在这项研究中,我们使用免疫磁选择方法从犬脂肪组织来源的MSCs (AD-MSCs)中分离出CD271阳性MSCs (CD271-MSCs)。CD271-MSCs和AD-MSCs形态相似,表达共同的免疫表型标记物(CD34、CD44和CD45)。然而,CD271-MSCs和AD-MSCs在成软骨分化潜能上存在差异。具体而言,与AD-MSCs相比,CD271-MSCs表现出软骨细胞特异性标志物,胶原型α 1 (COL2A1)和Aggrecan的表达水平增加。此外,与没有外源分化条件的对照组相比,电刺激(ES)处理的CD271-MSCs表达热休克蛋白70 (HSP70)、COL2A1和Aggrecan的能力更强。本研究可能有助于在缺乏外源分化剂的情况下,在特定的ES条件下,同质间充质干细胞向软骨细胞的分化潜力。
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引用次数: 0
COVID-19 Diagnostic Techniques: Analysis of Nucleic Acid-based testing of SARS-CoV-2 in Accordance with Primers COVID-19诊断技术:基于引物的SARS-CoV-2核酸检测分析
Pub Date : 2021-03-31 DOI: 10.7841/KSBBJ.2021.36.1.23
Songhee Park
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引用次数: 0
Enhanced Sialylation of Albumin-erythropoietin through Increased Synthesis of UDP-N-acetylglucosamine in CHO Cell Cultures 通过增加CHO细胞培养中udp - n-乙酰氨基葡萄糖的合成来增强白蛋白-促红细胞生成素的唾液酰化
Pub Date : 2021-03-31 DOI: 10.7841/KSBBJ.2021.36.1.49
Hye-Jin Han, Ji-Hee Lee, Hyun-Myoung Cha, Jin-Hyuk Lim, Dong-Il Kim
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引用次数: 0
Characterization of Shinella granuli CK-4, a Novel Bacterium Isolated from Industrial Wastewater Capable of Degrading 1,4-Dioxane 工业废水中降解1,4-二氧六环的颗粒Shinella granuli CK-4的研究
Pub Date : 2021-03-31 DOI: 10.7841/KSBBJ.2021.36.1.76
Moon-Seop Choi, Ki-Seung Choi, K. Oh
We have characterized a novel bacterium, strain CK-4 isolated from industrial wastewater, which is capable of utilizing 1,4-dioxane as sole carbon source and energy. Complete depletion of 1 g/L 1,4-dioxane by CK-4 cultures growing on AMS media was achieved within 168 h. Both the Biolog system and phylogenetic analysis using 16S rRNA sequencing were utilized for identification, and the strain was designated as Shinella granuli CK-4, and registered in GenBank as [MN841914]. The mortality of CK-4 was not greatly affected by 1,4-dioxane concentrations below 10 g/L but was increased with increasing 1,4-dioxane concentrations. SDS-PAGE revealed that the amount of lipopolysaccharide in CK-4 increased or decreased according to the 1,4-dioxane concentration. The expression of 60-kDa GroEL stress shock protein (SSP) was increased in proportion to concentrations below 10 g/L 1,4dioxane but was not expressed at concentrations above 15 g/L dioxane. On the other hand, 70-kDa DnaK SSP was not expressed at any 1,4-dioxane concentrations (0~20 g/mL) tested. SEM demonstrated that the surface of CK-4 cells exposed to 10 g/L dioxane was not significantly different from that of normal cells, whereas cells exposed to 20 g/L 1,4-dioxane showed the presence of perforations and irregular rod forms with wrinkled cell surfaces. These results provide clues to understanding the resistance of S. granuli CK-4 to 1,4-dioxane and the promotion of 1,4-dioxane degradation, which can be applied to the treatment of industrial wastewater with higher concentrations of 1,4-dioxane. Shinella granuli CK-4, 1,4-Dioxane, biodegradation, industrial wastewater
我们从工业废水中分离出一种新的细菌,菌株CK-4,它能够利用1,4-二恶烷作为唯一的碳源和能量。在AMS培养基上培养的CK-4在168 h内完全耗尽了1 g/L 1,4-二六环。利用生物学系统和16S rRNA测序进行系统发育分析,鉴定菌株为Shinella granuli CK-4,在GenBank中登记为[MN841914]。1,4-二恶烷浓度低于10 g/L对CK-4的死亡率影响不大,但随着浓度的增加而升高。SDS-PAGE显示,CK-4中脂多糖的含量随1,4-二氧六烷浓度的增加而增加或减少。60 kda的GroEL应激休克蛋白(SSP)的表达在浓度低于10 g/L 1,4二氧六环时呈比例增加,而在浓度高于15 g/L二氧六环时不表达。另一方面,70 kda DnaK SSP在任何1,4-二氧六环浓度(0~20 g/mL)下均未表达。扫描电镜显示,暴露于10 g/L二恶烷的CK-4细胞表面与正常细胞无显著差异,而暴露于20 g/L 1,4-二恶烷的细胞表面出现穿孔和不规则棒状,细胞表面起皱。这些结果为了解S. granuli CK-4对1,4-二恶烷的抗性和促进1,4-二恶烷的降解提供了线索,可用于处理高浓度1,4-二恶烷的工业废水。Shinella granuli ck - 4,1,4 -二恶烷,生物降解,工业废水
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引用次数: 0
The Effect of Brassica napus Biorenovated Extract on the Production of Melanin Production and Tyrosinase Activity in B16F10 Melanoma Cells 甘蓝型油菜生物改良提取物对B16F10黑色素瘤细胞黑色素生成及酪氨酸酶活性的影响
Pub Date : 2021-03-31 DOI: 10.7841/KSBBJ.2021.36.1.36
Byeongha Choi, Taejin Park, Jung Hwan Kim, Seung-Young Kim
Brassica napus (BN) has been reported to have various drug efficacies such as cancer, aging, but there is research on the scientific efficacy of whitening effect. Biorenovation is a method of modifying the structure of a broad range of substrates such as chemical compounds and plant extract by microbial enzymes with the potential benefits of reduced cytotoxicities and enhanced biological activities relative to its parent substrates. we generated BN extract using biorenovation technology and tested the whitening effect properties of its biorenovation product (BNBR) in α-MSH stimulated B16F10 melanoma cells. Our results showed that BNBR significantly inhibited enzymes of melanogenesis such as TRP-1, TRP-2, MITF, tyrosinase in a concentration dependent manner without no noticeable toxicities. Therefore, it suggests that maybe various components that converted by biorenovation contained in the BNBR affect multiple factors involved in α-MSH-induced melanogenesis in B16F10 cells. And our results indicate that BNBR could be a new source for the ingredients of functional cosmetics.
甘蓝型油菜(Brassica napus, BN)有抗癌、抗衰老等多种药效的报道,但对其美白功效的科学研究尚无定论。生物更新是一种利用微生物酶修饰多种底物(如化合物和植物提取物)结构的方法,具有相对于母体底物降低细胞毒性和增强生物活性的潜在益处。我们利用生物创新技术生成BN提取物,并测试其生物创新产物(BNBR)在α-MSH刺激的B16F10黑色素瘤细胞中的美白效果。结果表明,BNBR对黑色素生成酶TRP-1、TRP-2、MITF、酪氨酸酶有明显的抑制作用,且呈浓度依赖性,无明显的毒性作用。因此,提示BNBR中可能含有多种经生物更新转化的成分,影响α- msh诱导的B16F10细胞黑素形成的多种因素。研究结果表明,BNBR可作为功能性化妆品原料的新来源。
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引用次数: 1
Technology Opportunity Discovery Based on M&A Transactions Data in Healthcare Industry 基于医疗行业并购交易数据的技术机会发现
Pub Date : 2021-03-31 DOI: 10.7841/KSBBJ.2021.36.1.1
Sang-Uk Kim, Gyunghyun Choi
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引用次数: 0
Assessment of Antidiarrheal and Superoxide Scavenging Activities of Ethanolic Frond Extract from Stenochlaena palustris Bedd. 田螺叶乙醇提取物止泻及清除超氧化物活性的研究。
Pub Date : 2021-03-31 DOI: 10.7841/KSBBJ.2021.36.1.60
S. Adhikari, Kyoung-ran Moon, Wonjae Lee
The present study aimed to evaluate the antidiarrheal and superoxide scavenging activities of ethanolic extract of Stenochlaena palustris, an edible fern from Blechnaceae family. The antidiarrheal activity was determined against castor oil induced diarrhea model, gastrointestinal transit and enteropooling tests in Swiss albino mice. The test groups received various doses (100, 200, and 400 mg/kg, body weight) of the extract, whereas positive control received loperamide (3 mg/kg, b.w.) and negative control was supplied with 1% tween-80 in distilled water (10 mL/kg, b.w.). At three test doses (100, 200 and 400 mg/kg), the extract showed significant (p < 0.001) and dose dependent antidiarrheal activity in all models. The delay and reduction in the onset, frequency, and weight of diarrheic feces as well as inhibition of the gastrointestinal transit and intraluminal fluid accumulation were observed in all models and highly comparable to the standard loperamide. The extract also exhibited high inhibitory ability to scavenge superoxide anion (O2 • ). The highest percentage inhibition of superoxide anion was found to be 84.32 ± 0.15% at the concentration 800 μg/mL.
本研究旨在研究蓝蕨科食用蕨类植物窄蕨醇提物的止泻作用和清除超氧化物的作用。采用蓖麻油致小鼠腹泻模型、胃肠运输和肠蠕动实验测定其止泻活性。实验组给予不同剂量(100、200和400 mg/kg,体重)的提取物,阳性对照组给予洛哌丁胺(3 mg/kg, b.w),阴性对照组给予1%吐温-80蒸馏水(10 mL/kg, b.w)。在100mg /kg、200mg /kg和400mg /kg三个剂量下,黄芪提取物在所有模型中均表现出显著(p < 0.001)且剂量依赖性的止泻活性。在所有模型中都观察到延迟和减少腹泻的发作、频率和重量,以及抑制胃肠道运输和腔内液体积聚,与标准的洛哌丁胺高度相似。提取物对超氧阴离子(O2•)的清除也表现出较高的抑制能力。在800 μg/mL浓度下,对超氧阴离子的抑制率最高,为84.32±0.15%。
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引用次数: 0
Biorenovation-Assisted Modifiction of Ligustrum japonicum Extract for Skin-Whitening Effect 生物修复辅助改良女贞提取物的美白效果
Pub Date : 2021-03-31 DOI: 10.7841/KSBBJ.2021.36.1.30
J. Sim, Kyung-Mi Lee, Taejin Park, Minseok Kang, Hyehyun Hong, Seung-Young Kim
Biorenovation is a microbial enzyme-based structural modification of component compounds in natural products and synthetic compounds including plant crude-extracts with the potential benefits of reduced cytotoxicities and improved biological activities compared with its reaction substrates. In this study, we examined the whitening effect of Ligustrum japonicum (LJ) and LJ biorenovation extract (LJBR) in α-MSH-stimulated B16F10 melanoma cells. In the non-toxic concentrations of 25, 50, and 100 μg/ml, the inhibitory effect of LJ and LJBR on melanin synthesis and tyrosinase activity was observed. LJBR exhibited a stronger inhibitory effect on melanin synthesis and tyrosinase activity relative to its reaction substrate LJ. In addition, the protein expression level of MITF, TRP-1, TRP-2, and tyrosinase, which are known to play a critical role in melanin synthesis, was measured. As expected, a greater inhibitory effect on melanogenesis was observed in LJBR than in untreated group. These findings strongly suggest that biorenovation can assist the generation of a novel skin-lightening material.
生物更新是一种基于微生物酶的天然产物和合成化合物(包括植物粗提取物)成分化合物的结构修饰,与其反应底物相比,具有降低细胞毒性和提高生物活性的潜在益处。本研究考察了女贞子(LJ)和女贞子生物创新提取物(LJBR)对α- msh刺激的B16F10黑色素瘤细胞的美白作用。在无毒浓度为25、50和100 μg/ml时,观察LJ和LJBR对黑色素合成和酪氨酸酶活性的抑制作用。相对于其反应底物LJ, LJBR对黑色素合成和酪氨酸酶活性的抑制作用更强。此外,我们还测量了已知在黑色素合成中起关键作用的MITF、TRP-1、TRP-2和酪氨酸酶的蛋白表达水平。正如预期的那样,LJBR对黑素生成的抑制作用比未治疗组更大。这些发现有力地表明,生物创新可以帮助产生一种新的皮肤美白材料。
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引用次数: 2
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