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- 저자 : Zhang Yun-Ying (검색결과 47 건)
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Zhang Yun-Ying,Guo Jin-Meng,Wei Zhi-Qiang,Zhang Xiao-Tong,Liu Si-Ruo,Guo Hui-Fang,Dong Shuanglin 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.2
To better understand the olfactory mechanism of Mythimna loreyi, a worldwide migratory pest, we for the first time conducted a large scale identification of olfactory-related genes and investigation of their sex expression profiles by transcriptomic analysis. A total of 42,832 unigenes were obtained by transcriptome sequencing, as sembly and annotation, with an average length of 1,229 bp and N50 of 2,086 bp. In particular, 138 olfactoryrelated genes were identified by homologous blasting, including 33 odorant binding proteins (OBPs), 16 che mosensory proteins (CSPs), 63 odorant receptors (ORs), 24 ionotropic receptors (IRs) and two sensory neuron membrane proteins (SNMPs). Further, by using differential gene expression (DGE) and fragments per kilobase per million fragments (FPKM) values to compare the transcript levels between female and male antennae, we found that 22 olfactory-related genes (9 OBPs, one CSP and 12 ORs) were sex biased, with 10 genes being male biased and 12 genes female biased. In addition, sex and tissue expression profiles determined by qPCR of 15 selected genes confirmed the reliability of sex expression profiles obtained by the transcriptomic analysis, and demonstrated that most olfactory-related genes were specifically or primarily expressed in antennae, suggesting their roles in olfaction, while a few genes were highly expressed in other tissues, implying their non-olfaction functions. This study provides an important basis for further functional study of olfactory genes in M. loreyi.
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Zhang Yun-Ying,Guo Jin-Meng,Wei Zhi-Qiang,Zhang Xiao-Tong,Liu Si-Ruo,Guo Hui-Fang,Dong Shuanglin 한국응용곤충학회 2022 Journal of Asia-Pacific Entomology Vol.25 No.3
To better understand the olfactory mechanism of Mythimna loreyi, a worldwide migratory pest, we for the first time conducted a large scale identification of olfactory-related genes and investigation of their sex expression profiles by transcriptomic analysis. A total of 42,832 unigenes were obtained by transcriptome sequencing, as sembly and annotation, with an average length of 1,229 bp and N50 of 2,086 bp. In particular, 138 olfactoryrelated genes were identified by homologous blasting, including 33 odorant binding proteins (OBPs), 16 che mosensory proteins (CSPs), 63 odorant receptors (ORs), 24 ionotropic receptors (IRs) and two sensory neuron membrane proteins (SNMPs). Further, by using differential gene expression (DGE) and fragments per kilobase per million fragments (FPKM) values to compare the transcript levels between female and male antennae, we found that 22 olfactory-related genes (9 OBPs, one CSP and 12 ORs) were sex biased, with 10 genes being male biased and 12 genes female biased. In addition, sex and tissue expression profiles determined by qPCR of 15 selected genes confirmed the reliability of sex expression profiles obtained by the transcriptomic analysis, and demonstrated that most olfactory-related genes were specifically or primarily expressed in antennae, suggesting their roles in olfaction, while a few genes were highly expressed in other tissues, implying their non-olfaction functions. This study provides an important basis for further functional study of olfactory genes in M. loreyi.
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Yun-yun Chen,Fen-ping Cui,Fang Gu,Ying-ying Zhang 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.64 No.11
In this paper, the feasibility of using a one-temperature model to determine plasma’s temperatureby measuring its refractive index is studied based on the consideration that many plasma flow fieldsare not in local thermodynamic equilibrium (LTE). We compare the refractive indices between theone- and the two-temperature models of an arc plasma, in order to discuss the applicability ofthe one-temperature model in optical diagnosis. We found that the applicability is determined bythe pressure, the temperature ratio between electrons and heavy particles, the probe wavelength,and the chosen optical method’s refractive index measurement precision. Consequently, a commonmodel is deduced to describe the refractive index of plasma whether it be in LTE or not. In a word,this study is crucial to better apply optical methods based on measurements of the refractive indexto diagnose plasma flow fields.
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Ying Yang,Dong Wang,Lei Cui,Hong-Hao Ma,Li Zhang,Hong-Yun Lian,Qing Zhang,Xiao-Xi Zhao,Li-Ping Zhang,Yun-Ze Zhao,Na Li,Tian-You Wang,Zhi-Gang Li,Rui Zhang 대한암학회 2021 Cancer Research and Treatment Vol.53 No.1
Purpose We sought to investigate the effectiveness and safety of dabrafenib in children with BRAFV600E-mutated Langerhans cell histiocytosis (LCH). Materials and Methods A retrospective analysis was performed on 20 children with BRAFV600E-mutated LCH who were treated with dabrafenib. Results The median age at which the patients started taking dabrafenib was 2.3 years old (range, 0.6 to 6.5 years). The ratio of boys to girls was 2.3:1. The median follow-up time was 30.8 months (range, 18.9 to 43.6 months). There were 14 patients (70%) in the risk organ (RO)+ group and six patients (30%) in the RO– group. All patients were initially treated with traditional chemotherapy and then shifted to targeted therapy due to poor control of LCH or intolerance to chemotherapy. The overall objective response rate and the overall disease control rate were 65% and 75%, respectively. During treatment, circulating levels of cell-free BRAFV600E (cfBRAFV600E) became negative in 60% of the patients within a median period of 3.0 months (range, 1.0 to 9.0 months). Grade 2 or 3 adverse effects occurred in five patients. Conclusion Some children with BRAFV600E-mutated LCH may benefit from monotherapy with dabrafenib, especially high-risk patients with concomitant hemophagocytic lymphohistiocytosis and intolerance to chemotherapy. The safety of dabrafenib is notable. A prospective study with a larger sample size is required to determine the optimal dosage and treatment duration.
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Han Ying-Hao,Mao Ying-Ying,Yu Nan-Nan,Jin Mei-Hua,Jin Ying-Hua,Wang Ai-Guo,Zhang Yong-Qing,Shen Gui-Nan,Cui Yu-Dong,Yu Li-Yun,Lee Dong-Seok,Jo Yu-Jin,Sun Hu-Nan,Kwon Jeongwoo,권태호 한국응용생명화학회 2020 Applied Biological Chemistry (Appl Biol Chem) Vol.63 No.3
In this study, we used RNA sequencing (RNA-seq) to analyze and compare bulk cell samples from wild-type (WT) dermal mesenchymal stem cells (DMSCs) (n = 3) and Prx II knockout DMSCs (n = 3). The purpose of the study was to elucidate the role of Prx II on allogeneic immune rejection of transplanted DMSCs. The results revealed differential expression of 472 genes (176 up-regulated and 296 down-regulated; p ≤ 0.05) between the PrxII+/+ (WT) and PrxII−/− sample groups. When highly regulated genes were categorized according to the Gene Ontology (GO) molecular function classification and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, the PrxII−/− samples showed a robust downward trend in allograft rejection. The study identified 43 all immunologically rejected differentially expressed genes, of which 41 showed lower expression in the PrxII−/− vs. PrxII+/+ (WT) samples. These findings suggest that Prx II gene knockout may down-regulate the allograft rejection that occurs during DMSCs transplantation and improve the survival rate of DMSCs in the host. This study provides a new perspective on the clinical treatment of stem cell transplantation.
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Sheng-hai Zhang,Ying-zi Wang,Fan-yun Meng,You-lin Li,Cai-xia Li,Fei-peng Duan,Qing Wang,Xiu-ting Zhang,Chun-ni Zhang 대한약학회 2015 Archives of Pharmacal Research Vol.38 No.5
Flavonoid glycosides are metabolized byintestinal bacteria, giving rise to a wide range of phenolicacids that may exert systemic effects in the body. Themicrobial metabolism of flavonoids extracted from theleaves of Diospyros kaki (FLDK) by intestinal bacteria wasinvestigated in vitro. High-performance liquid chromatography/linear trap quadrupole orbitrap mass spectrometrywas performed to analyze the metabolites of flavonoidsin vivo using Xcalibur2.1 software. The results showed thatthe levels of flavonoid glycosides and flavonoid aglyconesdecreased rapidly in the process of microbial metabolismby intestinal bacteria in vitro, and the metabolic rate maybe related to the concentration of intestinal bacteria in theculture solution. In vivo metabolites of FLDK weredetected in rat plasma and urine after oral administration ofFLDK. Eight flavonoids were identified in the urine, andthree were identified in the plasma; however, flavonoidaglycones were not found in the plasma.
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Deng, Xiao-Dong,Gao, Qin,Zhang, Bo,Zhang, Li-Xia,Zhang, Wei,Er, Zhe-Er Mu,Xie, Ying,Ma, Ying,Liu, Yun Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.12
Background: Cytochrome P450 2E1 (CYP2E1) might be involved in the development of bladder cancer. However, previous studies of any association between CYP2E1 RsaI/PstI polymorphism and bladder cancer risk have yielded conflicting results. In this study, we performed a more precise estimation of the relationship by a meta-analysis based on the currently available evidence from the literature. Method: To assess the effect of CYP2E1 RsaI/PstI polymorphism on bladder cancer susceptibility, a meta-analysis of 6 available studies with 1,510 cases and 1,560 controls were performed through Feb 2014. Summary odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were used to estimate the strength of association for CYP2E1 RsaI/PstI polymorphism under different genetic models. Results: When available studies were pooled into the meta-analysis, we found that the C1C2 and C2C2 genotypes of CYP2E1 RsaI/PstI polymorphism significantly decreased bladder cancer risk under different genetic models (heterozygote: OR=0.766, 95%CI=0.613-0.957, $P_{OR}$=0.019; homozygote: OR=0.51, 95%CI=0.303-0.858, $P_{OR}$=0.011; dominant: OR=0.733, 95%CI=0.593-0.905, $P_{OR}$=0.004; recessive: OR=0.565, 95%CI=0.337-0.947, $P_{OR}$=0.030). Subgroup analysis indicated that C2C2 genotype was significantly associated with decreased bladder cancer risk under the homozygote genetic model in Caucasians. There was no evidence of heterogeneity or publication bias. Conclusions: The current meta-analysis suggested that the CYP2E1 RsaI/PstI polymorphism might be associated with bladder cancer susceptibility, especially in Caucasians. Further studies are needed to validate the above conclusion.
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20(S)-Protopanaxadiol Induces Human Breast Cancer MCF-7 Apoptosis through a Caspase-Mediated Pathway
Zhang, Hong,Xu, Hua-Li,Fu, Wen-Wen,Xin, Ying,Li, Mao-Wei,Wang, Shuai-Jun,Yu, Xiao-Feng,Sui, Da-Yun Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.18
20(S)-Protopanaxadiol (PPD), a ginsenoside isolated from Pananx quinquefolium L., has been shown to inhibit growth and proliferation in several cancer cell lines. The aim of this study was to evaluate its anticancer activity in human breast cancer cells. MCF-7 cells were incubated with different concentrations of 20(S)-PPD and cytotoxicity was evaluated by MTT assay. Occurrence of apoptosis was detected by DAPI and Annexin V-FITC/PI double staining. Mitochondrial membrane potential was measured with Rhodamine 123. The Bcl-2 and Bax expression were determined by Western blot analysis. Caspase activity was measured by colorimetric assay. 20(S)-PPD dose-dependently inhibited cell proliferation in MCF-7 cells, with an $IC_{50}$ value of $33.3{\mu}M$ at 24h. MCF-7 cells treated with 20(S)-PPD presented typical apoptosis, as observed by morphological analysis in cell stained with DAPI. The percentages of annexin V-FITC positive cells were 8.92%, 17.8%, 24.5% and 30.5% in MCF-7 cells treated with 0, 15, 30 and $60{\mu}M$ of 20(S)-PPD, respectively. Moreover, 20(S)-PPD could induce mitochondrial membrane potential loss, up-regulate Bax expression and down-regulate Bcl-2 expression. These events paralleled activation of caspase-9, -3 and PARP cleavage. Apoptosis induced by 20(S)-PPD was blocked by z-VAD-fmk, a pan-caspase inhibitor, suggesting induction of caspase-mediated apoptotic cell death. In conclusion, the 20(S)-PPD investigated is able to inhibit cell proliferation and to induce cancer cell death by a caspase-mediated apoptosis pathway.
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Zhang, Le-Ying,Wang, Jia-Qi,Yang, Yong-Xin,Bu, Deng-Pan,Li, Shan-Shan,Zhou, Ling-Yun Asian Australasian Association of Animal Productio 2011 Animal Bioscience Vol.24 No.2
Bovine whey protein expression patterns of colostrum are much different from that of milk. Moreover, bovine colostrum is an important source of protective, nutritional and developmental factors for the newborn. However, to our knowledge, no research has been performed to date using a comparative proteomic method on the changes in the bovine whey proteome during the transition from colostrum to milk. This study therefore separated whey protein of days 1, 3, 7 and 21 after calving using two dimension electrophoresis. Differentially expressed proteins at different collection times were identified using high-performance liquid chromatography in tandem with mass spectrometry (LC/MS) and validated by enzyme-linked immunosorbent assay (ELISA) in order to understand the developmental changes in the bovine whey proteome during the transition from colostrum to milk. The expression patterns of whey protein of days 1 and 3 post-partum were similar except that immunoglobulin G was down-regulated on day 3, and four proteins were found to be down-regulated on days 7 and 21 compared with day 1 after delivering, including immunoglobulin G, immunoglobulin M, albumin, and lactotransferrin, which are involved in immunity and molecule transport. The results of this study confirm the comparative proteomic method has the advantage over other methods such as ELISA and immunoassays in that it can simultaneously detect more differentially expressed proteins. In addition, the difference in composition of milk indicates a need for adjustment of the colostrum feeding regimen to ensure a protective immunological status for newborn calves.
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