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Pear pomace water extract reduces adiposity in vivo and in vitro by activating the AMPK-dependent pathway

Asian Pacific Journal of Tropical Biomedicine 2020年第5期10卷 208-215页

作者： Mi-Kyoung You Gwang-Woong Go hwa-jin kim jin Rhyu Hyeon-A kim Department of Nutrition and Health Sciences University of NebraskaLincolnNEUSA Department of Food and Nutrition Hanyang UniversitySeoulRepublic of Korea Department of Food and Nutrition Mokpo National UniversityJeollanam-doRepublic of Korea

Objective: To explore the inhibitory effect of water extract from pear pomace on abdominal fat accumulation and its underlying mechanism in high fat diet-fed animals. Methods: Three groups of male C57 BL/6 J mice were fed with a 60% kcal fat diet for 8 weeks. Pear pomace water extract(200 or 400 mg/kg body weight) was administered once daily via oral gavage. To confirm the possibility of the water extract of pear pomace acting as an activator of adenosine 5’-monophosphateactivated protein kinase(AMPK), differentiation of 3 T3-L1 preadipocytes was induced in the presence of the water extract of pear pomace with or without compound C. Body weight, food efficacy ratio, insulin resistance, and adipogenic protein expression were measured. Moreover, in the 3 T3-L1 cells, lipid content and lipogenesis-related proteins were measured using Oil Red O staining and Western blotting ***: Body weight gain and total abdominal fat weight were reduced in mice treated with pear pomace water extract. Pear pomace water extract reduced fasting blood glucose and insulin, thereby reducing the homeostatic model assessment of insulin resistance. It also resulted in dose-dependent decreases in triglyceride, total cholesterol, and low-density lipoproteincholesterol. The protein expression of p-AMPK increased, while the expression of AMPK-downstream proteins including PPAR-γ, C/EBPα, SREBP-1 c, ACC, and FAS decreased in the adipose tissue of mice treated with pear pomace water extract. Furthermore, the inhibition of AMPK by compound C blocked pear pomace water extract-induced reduction of lipid content and the expression of lipogenesis-related genes. Conclusions: Pear pomace water extract prevents fat accumulation both in vivo and in vitro by activating AMPK.

关键词： Pear pomace AMPK Compound C Obesity Insulin resistance

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Differential transcriptional regulation of the NANOG gene in chicken primordial germ cells and embryonic stem cells

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Journal of Animal Science and Biotechnology 2021年第3期12卷 877-890页

作者： Hee Jung Choi So Dam jin Deivendran Rengaraj jin hwa kim Bertrand Pain Jae Yong Han Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences Seoul National UniversitySeoul 08826South Korea Univ Lyon UniversitéLyon 1INSERMINRAEStem Cell and Brain Research InstituteU1208USC136169500 BronFrance Institute for Biomedical Sciences Shinshu UniversityMinamiminowaNagano 399-4598Japan

Background:NANOG is a core transcription factor(TF)in embryonic stem cells(ESCs)and primordial germ cells(PGCs).Regulation of the NANOG gene by TFs,epigenetic factors,and autoregulatory factors is well characterized in ESCs,and transcriptional regulation of NANOG is well established in these *** NANOG plays a key role in germ cells,the molecular mechanism underlying its transcriptional regulation in PGCs has not been ***,we investigated the mechanism that regulates transcription of the chicken NANOG(cNANOG)gene in PGCs and ***:We first identified the transcription start site of cNANOG by 5′-rapid amplification of cDNA ends PCR ***,we measured the promoter activity of various 5′flanking regions of cNANOG in chicken PGCs and ESCs using the luciferase reporter *** expression required transcriptional regulatory elements,which were positively regulated by POU5F3(OCT4)and SOX2 and negatively regulated by TP53 in *** proximal region of the cNANOG promoter contains a positive transcriptional regulatory element(CCAAT/enhancer-binding protein(CEBP)-binding site)in ***,small interfering RNA-mediated knockdown demonstrated that POU5F3,SOX2,and CEBP played a role in cell type-specific transcription of ***:We show for the first time that different trans-regulatory elements control transcription of cNANOG in a cell type-specific *** finding might help to elucidate the mechanism that regulates cNANOG expression in PGCs and ESCs.

关键词： Chicken Embryonic stem cells NANOG gene Primordial germ cells Regulatory elements

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A novel chitosan nanocapsule for enhanced skin penetration of cyclosporin A and effective hair growth in vivo

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Nano Research 2019年第12期12卷 3024-3030页

作者： jin Sil Lee Youngmin hwang Hyeryeon Oh Sunghyun kim jin-hwa kim Jeung-Hoon Lee Yong Chui Shin Giyoong Tae Won II Choi Center for Convergence Bioceramic Materials Convergence R&D DivisionKorea Institute of Ceramic Engineering and Technology202Osongsaengmyeong l-rof Osong-eupHeungdeok-guCheongjuChungbuk 28160Republic of Korea School of Materials Science and Engineering Gwangju Institute of Science and Technology123 Cheomdan-gwagiroBuk-guGwangju 61005Republic of Korea SKINMED Co. Ltd.Daejeon 34028Republic of Korea Amicogen Inc.64 Dongburo 1259JinsungJinju 52621Republic of Korea

Hair loss due to medical conditions,such as alopecia,male pattern baldness,and cancer chemotherapy treatment,has been a comm onproblem for many in *** n A(CsA),a fungal metabolite,has been reported to be a hair growth modulatory agent and is apotential drug for hair ***,the effect of topical application of CsA is limited by its poor water *** deliverysystems developed to enhance its solubility still showed poor skin *** overcome these limitations,in this study,we have developed a novel chitosan nanocapsule platform using Pluro nic F127 and chitosan without any chemical crosslinking or complicated preparati on steps for the enhanced water solubility and high tran sdermal penetration of *** chitosan nanocapsules(ChiNCs)optimized in terms of structural stability by using chitosan with various molecular weights ranging from 3 to 100 kDa enhanced the skin permeation of CsA through humancadaver skin in *** administration of the CsA loaded ChiNCs in creased the hair follicles by c.a.7 times higher than that of thecontrol group,and effectively induced hair growth in C57BL/6 mice in *** results suggest that ChiNCs could be used as a platform foreffective transdermal delivery of various hydrophobic drugs.

关键词： chitosan nanocapsule cyclosporin A transdermal delivery hair growth

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Enrichment of flavonoid aglycones in licorice extract enhanced anti-inflammatory potential,but its hypnotic effect was not altered

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中国药理学与毒理学杂志 2018年第4期32卷 337-338页

作者： Xue-qiong ZHANG jin hwa kim Su-ying CUI Jun Tae BAE Xiang-yu CUI Geun Soo LEE Hyeong Bae PYO Yong-he ZHANG Department of Pharmacology Peking University School of Basic Medical Sciences Beijing 100191 China R&D Center Hanbul Cosmetics Co. Ltd. 62 Daeseong-ro 547 beon-gil Samseong-myeon Eumseong-gun Chungcheongbuk-do 369-834 Korea

OBJECTIVE Licorice is used throughout the world as a traditional herbal *** to Chinese traditional medicine licorice alone can be used to treat *** there have been some studies investigated the anti-inflammatory ingredients of licorice,but for the potency of flavonoid glycoside and their aglycones on inflammation are not *** study was designed to assess the contributions of licorice flavonoid glycosides and their aglycons to its anti-inflammatory and hypnotic *** For the flavonoid aglycone's enrichment,the extract of licorice(EL)was fermented in submerged culture of the edible fungus Grifola frondosa HB0071 mycelia which can produce β-glucosidase and catalyze the flavonoid glycosides to *** and fermented extract of licorice(FEL) were used in this *** anti-inflammation test was carried out in arachidonic acid(AA)-induced ear edema model and the hypnotic test was performed by using electroencephalogram(EEG) analysis method in normal freely moving SD *** chemicals constituents were analyzed by *** During fermentation,the falvonoid glycosides of licorice were hydrolyzed by the time *** with fermentation time,the concentration of the major flavonoid glycosides,liquiritin and isoliquiritin were decreased obviously,and simultaneously their aglycons,liquiritigenin and *** were remarkably increased in ***,the content of another major constituent *** acid and glycyrrhetinic acid were not changed after the *** AA-induced mice ear *** test,after topical application,FEL(effective dose range:5-20 μg·ear-1) showed more potent *** activity than EL(effective dose range:25-100 μg·ear-1).On the other hand,oral administration of EL and FEL exhibited the same hypnotic potency and both enhanced the total sleep time including rapid eye movement(REM) sleep and non-REM sleep *** These results suggested that the enrichment of flavon

关键词：甘草治疗方法临床分析中医

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High mobility group box 1 in the central nervous system:regeneration hidden beneath inflammation

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Neural Regeneration Research 2025年第1期20卷 107-115页

作者： Hanki kim Bum Jun kim Seungyon Koh Hyo jin Cho Xuelian jin Byung Gon kim Jun Young Choi Department of Brain Science Ajou University School of MedicineSuwonSouth Korea Department of Biomedical Sciences Ajou University Graduate School of MedicineSuwonSouth Korea Department of Neurology Ajou University School of MedicineSuwonSouth Korea Department of Geriatrics The Affiliated Suqian First People’s Hospital of Nanjing Medical UniversitySuqianJiangsu ProvinceChina

High-mobility group box 1 was first discovered in the calf thymus as a DNA-binding nuclear protein and has been widely studied in diverse fields,including neurology and ***-mobility group box 1 in the extracellular space functions as a pro-inflammatory damage-associated molecular pattern,which has been proven to play an important role in a wide variety of central nervous system disorders such as ischemic stroke,Alzheimer’s disease,frontotemporal dementia,Parkinson’s disease,multiple sclerosis,epilepsy,and traumatic brain *** drugs that inhibit high-mobility group box 1 as a damage-associated molecular pattern,such as glycyrrhizin,ethyl pyruvate,and neutralizing anti-high-mobility group box 1 antibodies,are commonly used to target high-mobility group box 1 activity in central nervous system *** it is commonly known for its detrimental inflammatory effect,high-mobility group box 1 has also been shown to have beneficial pro-regenerative roles in central nervous system *** this narrative review,we provide a brief summary of the history of high-mobility group box 1 research and its characterization as a damage-associated molecular pattern,its downstream receptors,and intracellular signaling pathways,how high-mobility group box 1 exerts the repair-favoring roles in general and in the central nervous system,and clues on how to differentiate the pro-regenerative from the pro-inflammatory *** targeting high-mobility group box 1 in the central nervous system may benefit from differentiating between the two functions rather than overall suppression of high-mobility group box 1.

关键词： central nervous system damage-associated molecular pattern ethyl pyruvate glycyrhizzin high mobility group box 1 inflammation neural stem cells neurodevelopment oligodendrocyte progenitor cells redox status regeneration

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Expression and the Functional Roles of Sox9 in Human Epidermal Keratinocytes

Expression and the Functional Roles of Sox9 in Human Epiderm...

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中华医学会第十八次全国皮肤性病学术年会

作者： Kyung-Cheol Sohn Dae-Kyoung Choi Young Min Park jin-hwa kim Kyung-Chae Kye Sooyeon kim Myung Im Young Lee Young-Joon Seo Seo Chang Deok kim Jeung-Hoon Lee Department of Dermatology and Research Institute for Medical Sciences School of MedicineChungnam National University

Although Sox9 is an important regulator in maintenance of stemness for hair cells,its role in normal human epidermal keratinocytes(NHKCs)has not yet been well *** staining showed that Sox9 is predominantly expressed in the basal layer of normal human skin epidermis and is highly expressed in some cutaneous tumors and *** mRNA and protein levels for Sox9 can also be

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Multi-View Multi-Modal Head-Gaze Estimation for Advanced Indoor User Interaction

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Computers, Materials & Continua 2022年第3期70卷 5107-5132页

作者： Jung-hwa kim jin-Woo Jeong Department of Computer Engineering Kumoh National Institute of TechnologyGumi39177Korea Department of Data Science Seoul National University of Science and TechnologySeoul01811Kore

Gaze estimation is one of the most promising technologies for supporting indoor monitoring and interaction ***,previous gaze estimation techniques generally work only in a controlled laboratory environment because they require a number of high-resolution eye *** makes them unsuitable for welfare and healthcare facilities with the following challenging characteristics:1)users’continuous movements,2)various lighting conditions,and 3)a limited amount of available *** address these issues,we introduce a multi-view multi-modal head-gaze estimation system that translates the user’s head orientation into the gaze *** proposed system captures the user using multiple cameras with depth and infrared modalities to train more robust gaze estimators under the aforementioned *** this end,we implemented a deep learning pipeline that can handle different types and combinations of *** proposed system was evaluated using the data collected from 10 volunteer participants to analyze how the use of single/multiple cameras and modalities affect the performance of head-gaze *** various experiments,we found that 1)an infrared-modality provides more useful features than a depth-modality,2)multi-view multi-modal approaches provide better accuracy than singleview single-modal approaches,and 3)the proposed estimators achieve a high inference efficiency that can be used in real-time applications.

关键词： Human-computer interaction deep learning head-gaze estimation indoor monitoring

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Role of glutathione transferase in phase separation of FUS and TAF15 in neurons

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Neural Regeneration Research 2025年第7期20卷 1999-2000页

作者： Kiyoung kim Department of Medical Science Soonchunhyang UniversityAsanKorea

Amyotrophic lateral sclerosis(ALS)is a progressive neurodegenerative disorder characterized by the degeneration of motor neurons in the brain and spinal cord,leading to muscle weakness,paralysis,and ultimately death(Cleveland and Rothstein,2001).Frontotemporal lobar degeneration(FTLD)is a neurodegenerative disease affecting the frontal and temporal lobes of the brain,leading to changes in behavior,personality,and language(Van Langenhove et al.,2012).Both ALS and FTLD are classified as proteinopathies in which abnormal protein aggregation and accumulation in neurons contribute to the disease *** in sarcoma(FUS)is a DNA/RNA-binding protein involved in various cellular processes,including transcriptional regulation,RNA splicing,and DNA *** in the FUS gene have been linked to familial ALS,highlighting the importance of FUS in the disease pathogenesis(Vance et al.,2009).In ALS and FTLD,aberrant post-translational modifications(PTMs)of FUS,such as phosphorylation,acetylation,and methylation,have been implicated in the promotion of FUS aggregation and neurotoxicity(Choi et al.,2023).Therefore,understanding the regulatory mechanisms of FUS PTMs is crucial for developing targeted therapies against these diseases.

关键词： degeneration FUS aggregation

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Carboplatin restores neuronal toxicity in FUS-linked amyotrophic lateral sclerosis

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Neural Regeneration Research 2025年第8期20卷 2319-2320页

作者： Kiyoung kim Department of Medical Science Soonchunhyang UniversityAsanKorea

Amyotrophic lateral sclerosis(ALS),also known as Lou Geh rig's disease,is a progressive neurodegenerative disorder that affects motor neurons in the brain and spinal *** leads to muscle weakness,paralysis,and ultimate... 详细信息

关键词： paralysis sclerosis respiratory

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Recovery of the injured neural system through gene delivery to surviving neurons in Parkinson’s disease

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Neural Regeneration Research 2025年第10期20卷 2855-2861页

作者： Chanchal Sharma Sehwan kim Hyemi Eo Sang Ryong kim School of Life Science Kyungpook National UniversityDaeguKorea BK21 FOUR KNU Creative BioResearch Group Kyungpook National University DaeguKorea Brain Science and Engineering Institute Kyungpook National UniversityDaeguKorea

A critical unaddressed problem in Parkinson’s disease is the lack of therapy that slows or hampers *** medications effectively manage symptoms,they offer no long-term benefit because they fail to address the underlying neuronal *** highlights that the elusive goals of halting progression and restoring damaged neurons limit the long-term impact of current *** clinical trials using gene therapy have demonstrated the safety of various vector delivery systems,dosages,and transgenes expressed in the central nervous system,signifying tangible and substantial progress in applying gene therapy as a promising Parkinson’s disease ***,at diagnosis,many dopamine neurons remain in the substantia nigra,offering a potential window for recovery and *** propose that modulating these surviving dopamine neurons and axons in the substantia nigra and striatum using gene therapy offers a potentially more impactful therapeutic approach for future ***,innovative gene therapies that focus on preserving the remaining elements may have significant potential for enhancing long-term outcomes and the quality of life for patients with Parkinson’s *** this review,we provide a perspective on how gene therapy can protect vulnerable elements in the substantia nigra and striatum,offering a novel approach to addressing Parkinson’s disease at its core.

关键词： adeno-associated virus gene therapy neuroprotection neurorestoration neurotrophic factor nigrostriatal dopamine pathway pro-survival protein

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