Publications by authors named "Jung-Bong Kim"

Genetic resources are the cornerstone of our food supply and play a pivotal role in developing new crop varieties that ensure sustainable agricultural production amid the challenges of climate change [...

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Both the soil bacterium and the bacterial endosymbiont Burkholderia crenata of the plant are producers of FR900359 (FR). This cyclic depsipeptide is a potent and selective G protein inhibitor used extensively to investigate the intracellular signaling of G protein coupled receptors (GPCRs). In this study, the metabolomes of both FR producers were investigated and compared using feature-based molecular networking (FBMN).

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The chili pepper ( L.) is a food source that is rich in flavonoids such as luteolin and apigenin. Flavonoids are known to have anti-inflammatory and antioxidant activities; however, studies on the flavonoids composition identified and the anti-inflammatory and antioxidant effects in pepper leaves (PL) and fruits (PF) are insufficient.

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Fermentation may enhance the nutritional properties of foods by increasing metabolite bioactivity or bioavailability. This study explored the effect of fermentation on isoflavone bioavailability and metabolism. Isoflavone metabolites were tracked in foods and biospecimens of healthy adults after fermented soybean (FS) or non-fermented soybean (NFS) consumption in a randomized, controlled, crossover intervention study.

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Healthy food promotes beneficial bacteria in the gut microbiome. A few prebiotics act as food supplements to increase fermentation by beneficial bacteria, which enhance the host immune system and health. Allium hookeri is a healthy food with antioxidant and anti-inflammatory activities.

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The aim of this study was to quantitatively characterize 19 green and roasted coffee beans by ultra-performance liquid chromatography coupled with diode array detector and quadrupole time-of-flight mass spectrometry. A total of 57 phenolic acids including nine methyl ester of mono-, di-caffeoylquinic acid, and feruloylquinic acid were identified. The methyl hydroxycinnamoyl quinates are reported for the first time from and The total phenolic content ranged from 5628 ± 227 to 8581 ± 109 mg/100 g dry weight (DW) in green, and from 791 ± 63 to 1891 ± 37 mg/100 g DW roasted beans.

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Background: Polyunsaturated fatty acids such as linoleic acid (LA) and α-linolenic acid (ALA) are abundant in vegetable oils and are important for human health. In the body, LA and ALA are respectively converted to the omega-6 fatty acid γ-linolenic acid (GLA) and the omega-3 fatty acid stearidonic acid (SDA) by Δ6 desaturase (D6DES). Currently, dietary GLA and SDA are mainly obtained from marine organisms, but given their benefits to human health, many studies have aimed to enhance their accumulation in transgenic crops.

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  • * The nasYPL gene, which is 903 bp long, has similarities to a hypothetical protein from another bacterium, Massilia niastensis, and falls under Group 1 NAS based on phylogenetic analysis.
  • * When nasYPL was expressed in Escherichia coli and two Pseudomonas strains, it demonstrated antibacterial properties against several harmful bacteria, producing various N-acyl derivatives that could be useful in biotechnology.
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  • Flavonoids, found in many plants, are known to lower the risk of cancer and heart disease, and this study focused on their content and composition using advanced lab techniques.* -
  • The study identified 23 different flavonoids, including three new compounds related to quercetin and kaempferol, which have specific acetylated forms.* -
  • Japanese apricot and Chinese plum showed the highest flavonoid levels, with Japanese apricot experiencing a decrease in total flavonol and an increase in catechin as it ripens.*
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Anthocyanins are major components of purple sweet potatoes (PSP) with antioxidant, anti-obesity, and antidiabetic activity. In this study, we evaluated the hypoglycemic effects of 12 individual anthocyanins purified from PSP (Korean variety Shinzami). We separated the anthocyanins using liquid chromatography with diode array detection and electrospray ionization/mass spectrometry (LC-DAD-ESI/MS).

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Ultraviolet irradiation-induced hyperpigmentation of the skin is associated with excessive melanin production in melanocytes. Tyrosinase (TYR) is a key enzyme catalyzing the rate-limiting step in melanogenesis. TYR expression is controlled by microphthalmia-associated transcription factor (MITF) expression.

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Lung cancer is the second most prevalent cancer. Nonsmall cell lung cancer (NSCLC) is the most common type of lung cancer. The low efficacy in current chemotherapies impels us to find new alternatives to prevent or treat NSCLC.

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Background: Treatment of displaced and angulated radial neck fractures in children is controversial and challenging. Numerous studies have been conducted regarding treatment algorithms and surgical techniques that use fluoroscopy. However, ultrasonography (US)-guided reduction of pediatric radial neck fractures has not been reported yet.

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The juice of Ageratum houstonianum is used in folk medicine as an external wound healing aid for skin injuries. However, the active component of A. houstonianum and its mode of action in skin wound healing has not been investigated.

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Background: Agrimonia pilosa Ledeb. is a medicinal plant with physiological activities such as anti-cancer, antioxidant, anti-inflammatory activities and in vitro anti-diabetic activity. However, the effects of aqueous extracts from A.

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Cyclooxygenase (COX)-2 produces prostanoids, which contribute to inflammatory responses. Nuclear factor (NF)-κB is a key transcription factor mediating COX-2 expression. γ-Oryzanol is an active component in rice bran oil, which inhibits lipopolysaccharide (LPS)-mediated COX-2 expression by inhibiting NF-κB.

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The innate immune response is an important host primary defense system against pathogens. γ-Oryzanol is one of the nutritionally important phytoceutical components in rice bran oil. The goal of this study was to investigate the effect of γ-oryzanol-rich extract from black rice bran (γORE) on the activation of the innate immune system.

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The present study investigated the effects of ethanol extracts of (leaf, root, and fermented root) on parameters of innate immunity, tumour cell viability and antioxidant effect . Innate immunity was measured by spleen lymphocyte proliferation, nitric oxide production by chicken macrophage HD11 cells and suppressive effect on tumour cell viability was assessed using chicken RP9 cells. Free radical scavenging capacity as a measure of antioxidant capacity was determined by 0.

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Abnormal activation of adipogenesis in mesenchymal stem cells (MSCs) and preadipocyte cells is associated with human metabolic disorders, such as osteoporosis and obesity. This study investigated the biological effects of protocatechuic acid (PCA) on the modulation of osteogenesis and adipogenesis in cultured cells. PCA stimulation of MSCs significantly increased intracellular mineralization during osteogenesis, but reduced lipid accumulation in both MSCs and 3T3-L1 preadipocyte cells during adipogenesis.

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  • Microbial enhanced oil recovery (MEOR) is a novel technique using microorganisms to extract crude oil from depleted reservoirs, with this study focusing on the role of wheat bran in improving the process.
  • The research optimized conditions for stimulating indigenous microbial oil recovery (IMEOR) and found that combining wheat bran with specific nutrients significantly enhanced MEOR performance across different metabolic stages.
  • The study highlighted changes in microbial community structure throughout the oil recovery process, identifying key bacteria species that dominated at various stages and demonstrating the potential for industrial application of this approach.
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Background: Asthma is an increasing global health problem, and novel strategies to prevent or ameliorate the condition are needed. Here, the effects of 80 % ethanol extracts of Salvia plebeia R. Br.

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Parvin-β is an adaptor protein that binds to integrin-linked kinase (ILK) and is significantly downregulated in breast tumors and breast cancer cell lines. We treated the breast cancer cell line MCF7 with 24-methylenecycloartanyl ferulate (24-MCF), a γ-oryzanol compound. We observed upregulation of parvin-β (GenBank Accession No.

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WRKY proteins are transcription factors (TFs) that regulate the expression of defense-related genes. The salicylic acid (SA)-inducible Oryza sativa WRKY6 (OsWRKY6) was identified as a positive regulator of Oryza sativa pathogenesis-related 10a (OsPR10a) by transient expression assays. A physical interaction between OsWRKY6 and W-box-like element 1 (WLE1), which positively regulates OsPR10a/probenazole induced protein 1 expression, was verified in vitro.

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  • This study explored how adding selenium in a hydrolyzed soybean protein affects chickens’ resistance to necrotic enteritis (NE) when administered directly into eggs before hatching.
  • Broiler eggs were treated with varying amounts of the selenium mix, and after hatching, chickens were infected with specific pathogens to test their health and immune response.
  • Results showed that treated chickens had better growth, less pathogen shedding, improved antibody levels, and changes in gene expression related to inflammation and antioxidants, indicating that this treatment could enhance immune protection against NE.
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  • * A study created a library of 27 γ-oryzanol compounds to help in the identification and analysis of these substances in 16 types of Korean rice, revealing the presence of 19 distinct γ-oryzanol compounds such as stigmasterol and campesterol.
  • * The total γ-oryzanol content in the rice varieties averaged 43.8 mg/100 g, with the highest concentration found in 'Josaengheugchal' at 61.6 mg/100 g
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