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- 저자 : Xuan-Yi Huang (검색결과 11 건)
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Xuan Liu,Tahir Usman,Yachun Wang,Zezhao Wang,Xianzhou Xu,Meng Wu,Yi Zhang,Xu Zhang,Qiang Li,Lin Liu,Wanhai Shi,Chunhua Qin,Fanjun Geng,Congyong Wang,Rui Tan,Xixia Huang,Airong Liu,Hongjun Wu,Shixin Ta 아세아·태평양축산학회 2015 Animal Bioscience Vol.28 No.4
Improvement for carcass traits related to beef quality is the key concern in beef production. Recent reports found that epigenetics mediates the interaction of individuals with environment and nutrition. The present study was designed to analyze the genetic effect of single nucleotide polymorphisms (SNPs) in seven epigenetic-related genes (DNMT1, DNMT3a, DNMT3b, DNMT3L, Ago1, Ago2, and HDAC5) and two meat quality candidate genes (CAPN1 and PRKAG3) on fourteen carcass traits related to beef quality in a Snow Dragon beef population, and also to identify SNPs in a total of fourteen cattle populations. Sixteen SNPs were identified and genotyped in 383 individuals sampled from the 14 cattle breeds, which included 147 samples from the Snow Dragon beef population. Data analysis showed significant association of 8 SNPs within 4 genes related to carcass and/or meat quality traits in the beef populations. SNP1 (13154420A>G) in exon 17 of DNMT1 was significantly associated with rib-eye width and lean meat color score (p<0.05). A novel SNP (SNP4, 76198537A>G) of DNMT3a was significantly associated with six beef quality traits. Those individuals with the wild-type genotype AA of DNMT3a showed an increase in carcass weight, chilled carcass weight, flank thicknesses, chuck short rib thickness, chuck short rib score and in chuck flap weight in contrast to the GG genotype. Five out of six SNPs in DNMT3b gene were significantly associated with three beef quality traits. SNP15 (45219258C>T) in CAPN1 was significantly associated with chuck short rib thickness and lean meat color score (p<0.05). The significant effect of SNP15 on lean meat color score individually and in combination with each of other 14 SNPs qualify this SNP to be used as potential marker for improving the trait. In addition, the frequencies of most wild-type alleles were higher than those of the mutant alleles in the native and foreign cattle breeds. Seven SNPs were identified in the epigenetic-related genes. The SNP15 in CAPN1 could be used as a powerful genetic marker in selection programs for beef quality improvement in the Snow Dragon Beef population.
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Liu, Xuan,Usman, Tahir,Wang, Yachun,Wang, Zezhao,Xu, Xianzhou,Wu, Meng,Zhang, Yi,Zhang, Xu,Li, Qiang,Liu, Lin,Shi, Wanhai,Qin, Chunhua,Geng, Fanjun,Wang, Congyong,Tan, Rui,Huang, Xixia,Liu, Airong,Wu, Asian Australasian Association of Animal Productio 2015 Animal Bioscience Vol.28 No.4
Improvement for carcass traits related to beef quality is the key concern in beef production. Recent reports found that epigenetics mediates the interaction of individuals with environment and nutrition. The present study was designed to analyze the genetic effect of single nucleotide polymorphisms (SNPs) in seven epigenetic-related genes (DNMT1, DNMT3a, DNMT3b, DNMT3L, Ago1, Ago2, and HDAC5) and two meat quality candidate genes (CAPN1 and PRKAG3) on fourteen carcass traits related to beef quality in a Snow Dragon beef population, and also to identify SNPs in a total of fourteen cattle populations. Sixteen SNPs were identified and genotyped in 383 individuals sampled from the 14 cattle breeds, which included 147 samples from the Snow Dragon beef population. Data analysis showed significant association of 8 SNPs within 4 genes related to carcass and/or meat quality traits in the beef populations. SNP1 (13154420A>G) in exon 17 of DNMT1 was significantly associated with rib-eye width and lean meat color score (p<0.05). A novel SNP (SNP4, 76198537A>G) of DNMT3a was significantly associated with six beef quality traits. Those individuals with the wild-type genotype AA of DNMT3a showed an increase in carcass weight, chilled carcass weight, flank thicknesses, chuck short rib thickness, chuck short rib score and in chuck flap weight in contrast to the GG genotype. Five out of six SNPs in DNMT3b gene were significantly associated with three beef quality traits. SNP15 (45219258C>T) in CAPN1 was significantly associated with chuck short rib thickness and lean meat color score (p<0.05). The significant effect of SNP15 on lean meat color score individually and in combination with each of other 14 SNPs qualify this SNP to be used as potential marker for improving the trait. In addition, the frequencies of most wild-type alleles were higher than those of the mutant alleles in the native and foreign cattle breeds. Seven SNPs were identified in the epigenetic-related genes. The SNP15 in CAPN1 could be used as a powerful genetic marker in selection programs for beef quality improvement in the Snow Dragon Beef population.
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Ying Yi,Shu-Bin Fang,Guan-Xia Xiong,Xian-Ren Wang,Hui-Ting Chen,Wan-Yi Huang,Li-Xuan Feng 대한이비인후과학회 2023 Clinical and Experimental Otorhinolaryngology Vol.16 No.1
Objectives. Reactive oxygen species in the stria vascularis (SV) of the cochlea may be involved in the pathogenesis of sen-sorineural hearing loss. However, the effects of oxidative stress on SV endothelial cells (SV-ECs) remain largely un-known, and no feasible in vitro cell culture model exists for the functional study of SV-ECs. Methods. We isolated primary SV-ECs from the SV of neonatal mice. The apoptosis-reducing effects of fibronectin in SV-ECs cultured with serum-free medium were determined using β-galactosidase staining and flow cytometry. SV-ECsincubated in serum-free medium were treated with various H2O2 concentrations to evaluate the effects of H2O2 ontheir viability. The secretome of SV-ECs treated with or without H2O2 (100 μM or 500 μM) was analyzed using high-resolution mass spectrometry. The function of the SV-EC secretome was evaluated by a macrophage assay. Results. We successfully isolated and characterized the SV-ECs. Treatment with H2O2 at concentrations up to 500 μM for2 hours and further incubation with serum-free medium in plates precoated with fibronectin showed no significanteffect on apoptosis. Compared to the control SV-ECs, the amount of differential proteins in the secretome of SV-ECsstimulated with 500 μM H2O2 was much higher than in those treated with 100 μM H2O2. Kyoto Encyclopedia ofGenes and Genomes and Gene Ontology analyses suggested that the proteins differentially expressed in SV-ECstreated with 500 μM H2O2 were involved in the regulation of multiple signaling pathways and cellular processes. Thesecretome of H2O2-stimulated SV-ECs exhibited significant pro-inflammatory effects on macrophages. Conclusion. We successfully established an in vitro serum-free culture method, identified the differential proteins releasedby oxidative stress-induced ECs and their functions, and revealed the pro-inflammatory effects of the secretome ofH2O2-stimulated SV-ECs. Therefore, SV-ECs might elicit immunoregulatory effects on bystander cells in the microen-vironment of oxidative stress-induced cochlea, especially cochlear macrophages.
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Modeling and Analysis of an Avionic Battery Discharge Regulator
Chen, Qian,Yu, Haihong,Huang, Xiaoming,Lu, Yi,Qiu, Peng,Tong, Kai,Xuan, Jiazhuo,Xu, Feng,Xuan, Xiaohua,Huang, Weibo,Zhang, Yajing The Korean Institute of Power Electronics 2016 JOURNAL OF POWER ELECTRONICS Vol.16 No.3
The avionic battery discharge regulator (BDR) plays an important role in a power-conditioning unit. With its merits of high efficiency, stable transfer function, and continuous input and output currents, the non-isolated Weinberg converter (NIWC) is suitable for avionic BDR. An improved peak current control strategy is proposed to achieve high current-sharing accuracy. Current and voltage regulators are designed based on a small signal model of a three-module NIWC system. The system with the designed regulators operates stably under any condition and achieves excellent transient response and current-sharing accuracy.
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Psychological Processes of Postpartum Mothers with Newborns Admitted to the Intensive Care Unit
Lee Chiu-Kuei,Huang Xuan-Yi 한국간호과학회 2022 Asian Nursing Research Vol.16 No.1
Purpose: This research aims to explore the psychological processes of postpartum mothers during the admission of their newborns to the intensive care unit. It is hoped that the findings from this study will serve as a reference for clinical medical staff in providing individual and holistic patient care. Methods: Using grounded theory methodology, we collected data through semistructured, one-to-one in-depth interviews. When data saturation occurred, 12 participants were involved through the constant comparative analysis process. Results: The psychological processes consisted of a core category and three main categories. The core category was “worrying about the baby and striving to fulfill maternal responsibilities.” The three main categories were as follows: “impact on the maternal role,” “recognition of the maternal identity,” and “exhibition of maternal role.” The entire process may be affected by intrinsic and extrinsic factors, such as breast milk supply, timing of skin-to-skin contact, seriousness of the newborn's health conditions, the support system, and the style of postpartum confinement care. Conclusion: It is recommended that the neonatal intensive care unit should adopt family-centered care, taking an initiative to empathize and care for the mother, assisting skin-to-skin contact for the mother and baby as soon as possible, maintaining established breastfeeding, providing the correct concept of postpartum care, and encouraging participation in support groups. These activities can reduce the impact of the situation on the maternal role and improve maternal identity recognition.
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Zhao-jian Ying,Yuan-Yuan Huang,Meng-Meng Shao,Chu-Huai Chi,Ming-Xia Jiang,Yi-Hui Chen,Yu-Chen,Miao-Xuan Sun,Yan-Yan Zhu,Xianmei Li 대한신경과학회 2023 Journal of Clinical Neurology Vol.19 No.3
Background and Purpose The relationships among interleukin (IL)-10 levels, anxiety, and cognitive status after stroke remain controversial. We aimed to determine the associations of serum IL-10 levels with poststroke anxiety (PSA) and poststroke cognitive impairment (PSCI). Methods We recruited 350 patients with stroke, of whom only 151 completed a 1-month follow- up assessment. The Mini Mental State Examination (MMSE) and Hamilton Anxiety Scale (HAMA) were used to assess the cognitive status and anxiety, respectively. Serum IL-10 levels were measured within 24 hours of admission. Results IL-10 levels were significantly lower in the PSA group than in the non-PSA group, and they were negatively associated with HAMA scores (r=-0.371, p<0.001). After adjusting for all potential confounders, IL-10 levels remained an independent predictor of PSA (odds ratio=0.471, 95% confidence interval=0.237–0.936, p=0.032). IL-10 levels were strongly correlated with behavior during interviews, psychic anxiety, and somatic anxiety. Patients without PSCI had higher IL-10 levels were higher in non-PSCI patients than in PSCI patients, and they were positively associated with MMSE scores in the bivariate correlation analysis (r=0.169, p=0.038), and also with memory capacity, naming ability, and copying capacity. However, IL-10 did not predict PSCI in the univariable or multivariable logistic regression. Conclusions Low IL-10 levels were associated with increased risks of PSA and PSCI at a 1-month follow-up after stroke. Serum IL-10 levels may therefore be helpful in predicting PSA.
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IDD10 is Involved in the Interaction between NH4+ and Auxin Signaling in Rice Roots
Chang-Deok Han,Yuan Hu Xuan,Vikranth Kumar,Xiao Feng Zhu,Byoung Il Je,Chul Min Kim,Jin Huang,Jun Hyeon Cho,Gihwan Yi 한국식물학회 2018 Journal of Plant Biology Vol.61 No.2
NH4+ is an important nitrogen resource for rice plantsin paddy soil. Therefore, it is likely that NH4+-triggered plantgrowth interacts with phytohormone-mediated developmentalmechanisms. Our previous transcriptomic analysis revealedthat many genes involved in auxin signaling and efflux aresensitive to NH4+. In the current study, we found that NH4+treatment causes a delayed gravity response in rice roots. Tofurther elucidate the interlocking relationship between NH4+and auxin signaling during root development, we utilizedmutants and overexpressors of a key NH4+ signaling transcriptionfactor INDETERMINATE DOMAIN 10 (IDD10), encoding atranscription factor that regulates the expression of NH4+uptake and N-assimilation genes. We obtained several linesof evidence that auxin affects NH4+-mediated gene expressionand root development in rice plants via IDD10. First, thegravity response was delayed in idd10 roots and acceleratedin IDD10 overexpressor (IDD10 OX) roots in the absenceand (especially) presence of NH4+. Second, idd10 plantsshowed strong root coiling only in the presence of NH4+. However, treatment of 1-N-naphthylphthalamic acid (NPA),a polar auxin transport inhibitor suppressed the NH4+-specific root phenotype of idd10. Third, the expression ofNH4+-responsive auxin-related genes was affected in idd10and IDD10 overexpressors. Finally, IDD10 expression wasinduced by IAA and suppressed by NPA. These findingssuggest that the gene expression patterns and phenotypestriggered by NH4+ are influenced by the actions of auxinduring root development, pointing to a regulatory circuitbetween NH4+ and auxin signaling that functions in rootdevelopment in rice.
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Modeling and Analysis of an Avionic Battery Discharge Regulator
Qian Chen,Haihong Yu,Xiaoming Huang,Yi Lu,Peng Qiu,Kai Tong,Jiazhuo Xuan,Feng Xu,Xiaohua Xuan,Weibo Huang,Yajing Zhang 전력전자학회 2016 JOURNAL OF POWER ELECTRONICS Vol.16 No.3
The avionic battery discharge regulator (BDR) plays an important role in a power-conditioning unit. With its merits of high efficiency, stable transfer function, and continuous input and output currents, the non-isolated Weinberg converter (NIWC) is suitable for avionic BDR. An improved peak current control strategy is proposed to achieve high current-sharing accuracy. Current and voltage regulators are designed based on a small signal model of a three-module NIWC system. The system with the designed regulators operates stably under any condition and achieves excellent transient response and current-sharing accuracy.
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