• Journal of Animal Science and Technology
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• v.63 no.4
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• pp.919-933
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• 2021

We hypothesized that the unsaturated fatty acid palmitoleic acid (POA) could promote the expression of adipogenic/lipogenic genes in bovine skeletal muscle satellite cells (BSCs). The BSCs were cultured in a growth medium containing 10% fetal bovine serum. When the cells reached 80%-90% confluence, we used the differentiation medium with 5% horse serum for differentiation for 96 h. The differentiation medium contained 50 µM, 100 µM and 200 µM POA. Control BSC were cultured only in differentiation media. Compared with the control BSC, the POA BSC significantly up-regulated the expression of paired box 3 (Pax3) and paired box 7 (Pax7) and down-regulated myogenin gene expression (p < 0.01), which indicates a depression in muscle fiber development. However, all POA treatments up-regulated the expression of the adipocyte transcription factors peroxisome proliferator-activated receptor γ (PPARγ), CCAAT/enhancer-binding protein alpha and beta (C/EBP α and C/EBP β), and other genes (p < 0.01) and increased the expression of PAT-family proteins and the concentration of adiponectin in the media. These results indicate that POA can convert part of BSCs into adipocytes.

• Journal of Veterinary Science
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• v.24 no.2
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• pp.29.1-29.12
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• 2023

Background: Feline panleukopenia virus (FPV) is a widespread and highly infectious pathogen in cats with a high mortality rate. Although Yanji has a developed cat breeding industry, the variation of FPV locally is still unclear. Objectives: This study aimed to isolate and investigate the epidemiology of FPV in Yanji between 2021 and 2022. Methods: A strain of FPV was isolated from F81 cells. Cats suspected of FPV infection (n = 80) between 2021 and 2022 from Yanji were enrolled in this study. The capsid protein 2 (VP2) of FPV was amplified. It was cloned into the pMD-19T vector and transformed into a competent Escherichia coli strain. The positive colonies were analyzed via VP2 Sanger sequencing. A phylogenetic analysis based on a VP2 coding sequence was performed to identify the genetic relationships between the strains. Results: An FPV strain named YBYJ-1 was successfully isolated. The virus diameter was approximately 20-24 nm, 50% tissue culture infectious dose = 1 × 10^-4.94/mL, which caused cytopathic effect in F81 cells. The epidemiological survey from 2021 to 2022 showed that 27 of the 80 samples were FPV-positive. Additionally, three strains positive for CPV-2c were unexpectedly found. Phylogenetic analysis showed that most of the 27 FPV strains belonged to the same group, and no mutations were found in the critical amino acids. Conclusions: A local FPV strain named YBYJ-1 was successfully isolated. There was no critical mutation in FPV in Yanji, but some cases with CPV-2c infected cats were identified.

• Biomolecules & Therapeutics
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• v.31 no.4
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• pp.434-445
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• 2023

We investigated whether FTY-720 might have an effect on bleomycin-induced pulmonary fibrosis through inhibiting TGF-β1 pathway, and up-regulating autophagy. The pulmonary fibrosis was induced by bleomycin. FTY-720 (1 mg/kg) drug was intraperitoneally injected into mice. Histological changes and inflammatory factors were observed, and EMT and autophagy protein markers were studied by immunohistochemistry and immunofluorescence. The effects of bleomycin on MLE-12 cells were detected by MTT assay and flow cytometry, and the related molecular mechanisms were studied by Western Blot. FTY-720 considerably attenuated bleomycin-induced disorganization of alveolar tissue, extracellular collagen deposition, and α-SMA and E-cadherin levels in mice. The levels of IL-1β, TNF-α, and IL-6 cytokines were attenuated in bronchoalveolar lavage fluid, as well as protein content and leukocyte count. COL1A1 and MMP9 protein expressions in lung tissue were significantly reduced. Additionally, FTY-720 treatment effectively inhibited the expressions of key proteins in TGF-β1/TAK1/P38MAPK pathway and regulated autophagy proteins. Similar results were additionally found in cellular assays with mouse alveolar epithelial cells. Our study provides proof for a new mechanism for FTY-720 to suppress pulmonary fibrosis. FTY-720 is also a target for treating pulmonary fibrosis.

• Journal of the Korean GEO-environmental Society
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• v.18 no.2
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• pp.21-27
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• 2017

In order to evaluate landslide susceptibility in Yanbian region, this study analyzed 7 factors related to landslide occurrence, such as soil, geology, land use, slope, slope aspect, fault and river by Analytic Hierarchy Process (AHP), and calculated the weights of these 7 hazard-induced factors, determined the internal weights and the relative weights between various factors. According to these weights, combining the Remote Sensing technology (RS) with Geographic Information System technology (GIS), the selected area was evaluated by using GIS raster data analysis function, then landslide susceptibility chart was mapped out. The comprehensive analysis of AHP and GIS showed that there has unstable area with the potential risk of sliding in the research area. The result of landslide susceptibility agrees well with the historical landslides, which proves the accuracy of adopted methods and hazard-induced factors.

• Journal of the Korean Society of Food Culture
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• v.17 no.4
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• pp.446-455
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• 2002

The purpose of this study was to identify the dimensions and patterns of the perception of Korean traditional food and to find the determinants of the patterns between Korean and Yanbian housewives, taking food culture into account. Data were factor and cluster analyzed, and the results revealed two and three different dimensions and patterns for Yanbian and Korean housewives respectively. Descriptive statistics showed that perceptional patterns are likely to vary depending on cultural background of Korean traditional food. Similarities and differences in perceptional patterns between Yanbian and Korean housewives are discussed, and future implications for food as well as nutrition specialists and food marketers are provided.

• Korean Journal of Adult Nursing
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• v.15 no.4
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• pp.607-616
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• 2003

Purpose: The purpose of the study was to examine the relationships among social support (network, composition, and satisfaction), stress, and loneliness in migrant Yanbian Korean workers. Method: Data were collected by using Social Support Questionnaire 6, Visual Analogue Scale, and the Revised UCLA Loneliness Scale. Result: Results indicate that means for social support were 1.52 for network size and 4.83 for satisfaction. The proportion percentage of network for kin members was 67.37. Subjects felt the moderate level of stress and loneliness. The level of loneliness was negatively related to the level of social support. Conclusion: This study showed that there is necessity to reduce stress and loneliness among migrant Yanbian Korean workers. Adequate social support satisfaction is crucial to reduce the level of loneliness in migrant Yanbian Korean workers.

• Journal of the Korean Society of Costume
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• v.20
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• pp.191-201
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• 1993

As a part of study examining Korean costume remaining in Yanbian China, this study explored changes in ceremonial clothing for marriage worn by Korean(Chosun race) in Yanbian China. About one hundred years ago, Koreans moved to Yanbian China and had worn traditional clothing for marriage ceremony until before 1940. Data were collected by true interview and field observation while staying in that area. Samo and Dalyung for bridegrooms, Wonsam and Jockdoory for bridegrooms, wonsam and Jockdoory for brides were usual costume for wedding ceremony, however, for couples in inferior conditions of life, Bazy and Jeogory for bridegrooms, yellow Jeogory and red Chima for brides were accepted for ceremonial costume. As western culture came to this area in about 1940, bridegrooms wore western style suit, while brides dress in white Chima, Jeogory and Neowool. To date, Korean brides have worn traditional Chima and Jeogory for marriage ceremony though slight change has occurred in clothing material and in the forms of Chima, Geogory and Neowool. As the pratice reflected the fact that Korean in Yanbian China as established and sustained traditional China as established and sustained traditional costume and Korean identity even in hush socio-cultural environment.

• Journal of architectural history
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• v.29 no.3
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• pp.15-24
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• 2020

As China enters the 21st century, China is strengthening its position as a world power in an international position. However, there are still problems with Three Agricultural(Agricultural, Rural, Farmer) and unbalanced urban and rural villages. China, as one of the largest and most populous nations, values the development of three farms. Strategies such as "The Construction Of New Socialist Countryside" were a policy to solve rural problems, But they were not enough to achieve breakthrough results. In order to achieve more effective results, the Central Committee of THE STATE COUNCIL proposed The Document No.1 of "Opinion on the Implementation of The Rural Revitalization Strategy" in February 4, 2018 and published "The Rural Revitalization Strategy (2018-2022 )". The Yanbian region, which is the subject of this study, is the home of Korean-Chinese tribes and the Korean autonomous region. As a minority of Chinese ethnic minorities, the Korean-Chinese has their own unique culture, and Yanbian has distinct regional characteristics. As The Rural Revitalization Strategy was raised, Villages is showing positive change in accordance with policy implementation in Yanbian. This study analyzed the current status of policy implementation of The Rural Revitalization Strategy in Yanbian area and analyzed the policy contents and performances based on the of Yanbian Daily News. Based on the results of the analysis, I would like to help in suggesting a more rational development direction and building the villages.

• Parasites, Hosts and Diseases
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• v.59 no.3
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• pp.297-301
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• 2021

Toxoplasma gondii infection is widespread worldwide, not only posing a serious threat to human food safety and animal husbandry, but also endangering human health. The selectivity index was employed to measure anti-T. gondii activity. Hederagenin (HE) exhibited potent anti-T. gondii activity and low cytotoxicity. For this reason, HE was selected for in vivo experiments. HE showed 64.8%±13.1% inhibition for peritoneal tachyzoites in mice, higher than spiramycin 56.8%±6.0%. Biochemical parameters such as alanine aminotransferase, aspartate aminotransferase, glutathione, and malondialdehyde, illustrated that HE was a good inhibitor of T. gondii in vivo. This compound was also effective in relieving T. gondii-induced liver damage. Collectively, it was demonstrated that HE had potential as an anti-T. gondii agent.

• Journal of the Korean Society of Food Culture
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• v.24 no.5
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• pp.457-466
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• 2009

The purpose of this study was to identify and compare the dimensions and patterns of the perception of traditional food for Koreans living in Yanbian, Mongolia and Uzbekistan. Items representing the perception of traditional food were combined into a dimension and a pattern based on underlying perception of the Koreans living in the area. Any difference in the perception of the Koreans living in these areas likely reflects their different dimensions and patterns. Thus, it is important to determine if Koreans living in Yanbian, Mongolia and Uzbekistan should be treated as a homogeneous group when defining their perceptional structure of traditional food. Factor and cluster analysis of the data generated in this study revealed two different dimensions and patterns for each group of Koreans living in Yanbian, Mongolia and Uzbekistan. However, the structure of the dimensions and patterns of the perception of traditional food differed, indicating that Koreans within and between the countries are not a homogeneous group. Similarities and differences in perceptional dimensions and patterns among Yanbian, Mongolian and Uzbekistan-Koreans are also discussed. Moreover, future implications for food and nutrition specialists, especially for those who have an interest in Korean traditional food in Asia and those who have an interest in globalization of Korean traditional food are provided.