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  1. Article ; Online: Association of TP53 rs1042522 G > C, MDM2 rs2279744 T > G, and miR-34b/c rs4938723 T > C polymorphisms with aneuploidy pregnancy susceptibility.

    Chan, Ying / Xu, Weiming / Feng, Yan / Zhang, Yan / Li, Suyun / Geng, Zibiao / Liu, Zhijiao / Zhao, Qingfen / Zhang, Jinman / Zhu, Baosheng

    BMC pregnancy and childbirth

    2023  Volume 23, Issue 1, Page(s) 624

    Abstract: ... rs2279744 309 T > G, and miR-34b/c rs4938723 T > C specific polymorphisms with aneuploidy pregnancy ... MDM2 rs2279744 309 T > G, and miR-34b/c rs4938723 T > C, were genotyped using the snapshot method ... revealed a significantly higher frequency in cases than controls (p = 0.045), and miR-34b/c rs4938723 T > C ...

    Abstract Background: Aneuploidy pregnancy is a severe major birth defect and causes about 50% spontaneous miscarriages with unknown etiology. To date, only a few epidemiological studies with small sample sizes have investigated the risk factors for aneuploidy pregnancy. TP53, MDM2, and miR-34b/c genes are implicated in tumorigenesis with aneuploidy, yet the function of their polymorphisms in aneuploidy pregnancy susceptibility needs to be clarified.
    Objective: To elucidate the association of TP53 rs1042522 G > C, MDM2 rs2279744 309 T > G, and miR-34b/c rs4938723 T > C specific polymorphisms with aneuploidy pregnancy.
    Methods: In the retrospective case-control study, 330 aneuploidies pregnancy women and 813 normal pregnancy controls were recruited between January 2018 and April 2022 at the First People's Hospital of Yunnan Province, Kunming, China. Three functional polymorphisms, the TP53 rs1042522 G > C (Arg72Pro), MDM2 rs2279744 309 T > G, and miR-34b/c rs4938723 T > C, were genotyped using the snapshot method.
    Results: The frequency distribution of three genotypic variants was not different between case and control pregnant women and was similar to with Hardy-Weinberg Equilibrium (HWE). However, in the younger subgroup (less than 35 years old), a significant difference was detected in allele and recessive model (p = 0.01). In the advanced age subgroup (more than or equal to 35 years old), G of MDM2 rs2279744 T > G revealed a significantly higher frequency in cases than controls (p = 0.045), and miR-34b/c rs4938723 T > C revealed a significant difference under the dominant model (p = 0.03), but no significant differences were observed in other models and in both younger and older subgroup (p > 0.05, respectively). These results suggest that individual polymorphisms were not associated with aneuploidy pregnancy, combined with age, they may serve as a risk factor for aneuploidy pregnancy.
    Conclusion: Combination of TP53 rs1042522 G > C, MDM2 rs2279744 T > G, and miR-34b/c rs4938723 T > C polymorphisms with maternal age may be related to aneuploidy pregnancy susceptibility. These findings might elaborate on the genetic etiology of aneuploidy pregnancy.
    MeSH term(s) Pregnancy ; Humans ; Female ; Adult ; Case-Control Studies ; China ; Retrospective Studies ; Aneuploidy ; MicroRNAs/genetics ; Tumor Suppressor Protein p53/genetics ; Proto-Oncogene Proteins c-mdm2/genetics
    Chemical Substances MicroRNAs ; TP53 protein, human ; Tumor Suppressor Protein p53 ; MDM2 protein, human (EC 2.3.2.27) ; Proto-Oncogene Proteins c-mdm2 (EC 2.3.2.27)
    Language English
    Publishing date 2023-08-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 2059869-5
    ISSN 1471-2393 ; 1471-2393
    ISSN (online) 1471-2393
    ISSN 1471-2393
    DOI 10.1186/s12884-023-05945-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Magic Gap Ratio for Optimally Robust Fermionic Condensation and Its Implications for High-T_{c} Superconductivity.

    Harrison, N / Chan, M K

    Physical review letters

    2022  Volume 129, Issue 1, Page(s) 17001

    Abstract: ... crossover in the cuprates by identifying a universal magic gap ratio 2Δ/k_{B}T_{c}≈6.5 (where Δ is ... the pairing gap and T_{c} is the transition temperature) at which paired fermion condensates become optimally ... condensate fraction N_{0} and the height of the jump δγ(T_{c}) in the coefficient γ of the fermionic ...

    Abstract Bardeen-Schrieffer-Cooper (BCS) and Bose-Einstein condensation (BEC) occur at opposite limits of a continuum of pairing interaction strength between fermions. A crossover between these limits is readily observed in a cold atomic Fermi gas. Whether it occurs in other systems such as the high temperature superconducting cuprates has remained an open question. We uncover here unambiguous evidence for a BCS-BEC crossover in the cuprates by identifying a universal magic gap ratio 2Δ/k_{B}T_{c}≈6.5 (where Δ is the pairing gap and T_{c} is the transition temperature) at which paired fermion condensates become optimally robust. At this gap ratio, corresponding to the unitary point in a cold atomic Fermi gas, the measured condensate fraction N_{0} and the height of the jump δγ(T_{c}) in the coefficient γ of the fermionic specific heat at T_{c} are strongly peaked. In the cuprates, δγ(T_{c}) is peaked at this gap ratio when Δ corresponds to the antinodal spectroscopic gap, thus reinforcing its interpretation as the pairing gap. We find the peak in δγ(T_{c}) also to coincide with a normal state maximum in γ, which is indicative of a pairing fluctuation pseudogap above T_{c}.
    Language English
    Publishing date 2022-07-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.129.017001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Generation of induced pluripotent stem cells (IBMSi027-A) from a patient with hearing loss carrying WFS1 c.2051C > T (p.Ala684Val) variant.

    Chan, Yen-Hui / Tsai, Cheng-Yu / Ho, Chang-Han / Lu, Ying-Chang / Lin, Pei-Hsuan / Chen, Ta-Ching / Chen, You-Tzung / Huang, Cheng-Yen / Liu, Tien-Chen / Hsu, Chuan-Jen / Wu, Chen-Chi

    Stem cell research

    2023  Volume 69, Page(s) 103068

    Abstract: ... of a female patient with the WFS1 pathogenic variant c.2051C > T (p.Ala684Val). The resulting ...

    Abstract Pathogenic variants of the WFS1 gene can cause recessive-inherited Wolfram syndrome or dominant-inherited Wolfram-like syndrome with optic atrophy and hearing impairment. Using the Sendai virus delivery system, we generated induced pluripotent stem cells from the peripheral blood mononuclear cells of a female patient with the WFS1 pathogenic variant c.2051C > T (p.Ala684Val). The resulting induced pluripotent stem cells exhibited a normal karyotype and pluripotency, as confirmed using immunofluorescence staining, and differentiated into three germ layers in vivo. This cellular model provides a useful platform for investigating the pathogenic mechanisms of both blindness and deafness related to WFS1 variants.
    MeSH term(s) Humans ; Female ; Induced Pluripotent Stem Cells/pathology ; Leukocytes, Mononuclear/pathology ; Hearing Loss/genetics ; Wolfram Syndrome/genetics ; Wolfram Syndrome/pathology ; Mutation
    Language English
    Publishing date 2023-03-16
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2393143-7
    ISSN 1876-7753 ; 1873-5061
    ISSN (online) 1876-7753
    ISSN 1873-5061
    DOI 10.1016/j.scr.2023.103068
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: High expression of uracil DNA glycosylase determines C to T substitution in human pluripotent stem cells.

    Park, Ju-Chan / Jang, Hyeon-Ki / Kim, Jumee / Han, Jun Hee / Jung, Youngri / Kim, Keuntae / Bae, Sangsu / Cha, Hyuk-Jin

    Molecular therapy. Nucleic acids

    2021  Volume 27, Page(s) 175–183

    Abstract: Precise genome editing of human pluripotent stem cells (hPSCs) is crucial not only for basic science but also for biomedical applications such ... ...

    Abstract Precise genome editing of human pluripotent stem cells (hPSCs) is crucial not only for basic science but also for biomedical applications such as
    Language English
    Publishing date 2021-11-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2662631-7
    ISSN 2162-2531
    ISSN 2162-2531
    DOI 10.1016/j.omtn.2021.11.023
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Generation of induced pluripotent stem cells (IBMSi027-A) from a patient with hearing loss carrying WFS1 c.2051C > T (p.Ala684Val) variant

    Yen-Hui Chan / Cheng-Yu Tsai / Chang-Han Ho / Ying-Chang Lu / Pei-Hsuan Lin / Ta-Ching Chen / You-Tzung Chen / Cheng-Yen Huang / Tien-Chen Liu / Chuan-Jen Hsu / Chen-Chi Wu

    Stem Cell Research, Vol 69, Iss , Pp 103068- (2023)

    2023  

    Abstract: ... of a female patient with the WFS1 pathogenic variant c.2051C > T (p.Ala684Val). The resulting ...

    Abstract Pathogenic variants of the WFS1 gene can cause recessive-inherited Wolfram syndrome or dominant-inherited Wolfram-like syndrome with optic atrophy and hearing impairment. Using the Sendai virus delivery system, we generated induced pluripotent stem cells from the peripheral blood mononuclear cells of a female patient with the WFS1 pathogenic variant c.2051C > T (p.Ala684Val). The resulting induced pluripotent stem cells exhibited a normal karyotype and pluripotency, as confirmed using immunofluorescence staining, and differentiated into three germ layers in vivo. This cellular model provides a useful platform for investigating the pathogenic mechanisms of both blindness and deafness related to WFS1 variants.
    Keywords Biology (General) ; QH301-705.5
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Stabilization of the c-Myc Protein by CAMKIIγ Promotes T Cell Lymphoma.

    Gu, Ying / Zhang, Jiawei / Ma, Xiaoxiao / Kim, Byung-Wook / Wang, Hailong / Li, Jinfan / Pan, Yi / Xu, Yang / Ding, Lili / Yang, Lu / Guo, Chao / Wu, Xiwei / Wu, Jun / Wu, Kirk / Gan, Xiaoxian / Li, Gang / Li, Ling / Forman, Stephen J / Chan, Wing-Chung /
    Xu, Rongzhen / Huang, Wendong

    Cancer cell

    2017  Volume 32, Issue 1, Page(s) 115–128.e7

    Abstract: Although high c-Myc protein expression is observed alongside MYC amplification in some cancers ... in most cases protein overexpression occurs in the absence of gene amplification, e.g., T cell lymphoma ...

    Abstract Although high c-Myc protein expression is observed alongside MYC amplification in some cancers, in most cases protein overexpression occurs in the absence of gene amplification, e.g., T cell lymphoma (TCL). Here, Ca
    MeSH term(s) Animals ; Benzylisoquinolines/pharmacology ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/antagonists & inhibitors ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/genetics ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/physiology ; Cell Proliferation ; Gene Deletion ; Heterografts/metabolism ; Humans ; Lymphoma, T-Cell/metabolism ; Lymphoma, T-Cell/pathology ; Mice ; Models, Molecular ; Phosphorylation ; Proto-Oncogene Proteins c-myc/genetics ; Proto-Oncogene Proteins c-myc/metabolism ; Proto-Oncogene Proteins c-myc/physiology
    Chemical Substances Benzylisoquinolines ; Proto-Oncogene Proteins c-myc ; Calcium-Calmodulin-Dependent Protein Kinase Type 2 (EC 2.7.11.17) ; berbamine (V5KM4XJ0WM)
    Language English
    Publishing date 2017--10
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 2078448-X
    ISSN 1878-3686 ; 1535-6108
    ISSN (online) 1878-3686
    ISSN 1535-6108
    DOI 10.1016/j.ccell.2017.06.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Maximizing T c by tuning nematicity and magnetism in FeSe1−x S x superconductors

    K. Matsuura / Y. Mizukami / Y. Arai / Y. Sugimura / N. Maejima / A. Machida / T. Watanuki / T. Fukuda / T. Yajima / Z. Hiroi / K. Y. Yip / Y. C. Chan / Q. Niu / S. Hosoi / K. Ishida / K. Mukasa / S. Kasahara / J.-G. Cheng / S. K. Goh /
    Y. Matsuda / Y. Uwatoko / T. Shibauchi

    Nature Communications, Vol 8, Iss 1, Pp 1-

    2017  Volume 6

    Abstract: ... antiferromagnetic phases for FeSe1-x S x , observing a tetragonal phase in between with a strikingly enhanced T c. ...

    Abstract The overlap between different phases has hindered the understanding of how each phase affects superconductivity in FeSe. Here, Matsuura et al. achieve a complete separation of non-magnetic nematic and antiferromagnetic phases for FeSe1-x S x , observing a tetragonal phase in between with a strikingly enhanced T c.
    Keywords Science ; Q
    Language English
    Publishing date 2017-10-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Maximizing T c by tuning nematicity and magnetism in FeSe1−x S x superconductors

    K. Matsuura / Y. Mizukami / Y. Arai / Y. Sugimura / N. Maejima / A. Machida / T. Watanuki / T. Fukuda / T. Yajima / Z. Hiroi / K. Y. Yip / Y. C. Chan / Q. Niu / S. Hosoi / K. Ishida / K. Mukasa / S. Kasahara / J.-G. Cheng / S. K. Goh /
    Y. Matsuda / Y. Uwatoko / T. Shibauchi

    Nature Communications, Vol 8, Iss 1, Pp 1-

    2017  Volume 6

    Abstract: ... antiferromagnetic phases for FeSe1-x S x , observing a tetragonal phase in between with a strikingly enhanced T c. ...

    Abstract The overlap between different phases has hindered the understanding of how each phase affects superconductivity in FeSe. Here, Matsuura et al. achieve a complete separation of non-magnetic nematic and antiferromagnetic phases for FeSe1-x S x , observing a tetragonal phase in between with a strikingly enhanced T c.
    Keywords Science ; Q
    Language English
    Publishing date 2017-10-01T00:00:00Z
    Publisher Nature Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Charge order and its connection with Fermi-liquid charge transport in a pristine high-T(c) cuprate.

    Tabis, W / Li, Y / Le Tacon, M / Braicovich, L / Kreyssig, A / Minola, M / Dellea, G / Weschke, E / Veit, M J / Ramazanoglu, M / Goldman, A I / Schmitt, T / Ghiringhelli, G / Barišić, N / Chan, M K / Dorow, C J / Yu, G / Zhao, X / Keimer, B /
    Greven, M

    Nature communications

    2014  Volume 5, Page(s) 5875

    Abstract: ... superconductor HgBa2CuO(4+δ) (T(c)=72 K) via bulk Cu L3-edge-resonant X-ray scattering. At the measured hole ...

    Abstract Electronic inhomogeneity appears to be an inherent characteristic of the enigmatic cuprate superconductors. Here we report the observation of charge-density-wave correlations in the model cuprate superconductor HgBa2CuO(4+δ) (T(c)=72 K) via bulk Cu L3-edge-resonant X-ray scattering. At the measured hole-doping level, both the short-range charge modulations and Fermi-liquid transport appear below the same temperature of about 200 K. Our result points to a unifying picture in which these two phenomena are preceded at the higher pseudogap temperature by q=0 magnetic order and the build-up of significant dynamic antiferromagnetic correlations. The magnitude of the charge modulation wave vector is consistent with the size of the electron pocket implied by quantum oscillation and Hall effect measurements for HgBa2CuO(4+δ) and with corresponding results for YBa2Cu3O(6+δ), which indicates that charge-density-wave correlations are universally responsible for the low-temperature quantum oscillation phenomenon.
    Language English
    Publishing date 2014-12-19
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ISSN 2041-1723
    ISSN (online) 2041-1723
    DOI 10.1038/ncomms6875
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Identification of a rare homozygous c.790C>T variation in the TFB2M gene in Korean patients with autism spectrum disorder.

    Park, Chan Bae / Choi, Vit-Na / Jun, Jae-Bum / Kim, Ji-Hae / Lee, Youngsoo / Lee, Jinhyuk / Lim, GyuTae / Kim, Jeonghyun / Jeong, Seon-Yong / Yim, Shin-Young

    Biochemical and biophysical research communications

    2018  Volume 507, Issue 1-4, Page(s) 148–154

    Abstract: ... in any human diseases. We identified a rare homozygous c.790C>T (His264Tyr) variation in TFB2M gene in two Korean ...

    Abstract Mitochondrial dysfunction and subsequent enhanced oxidative stress is implicated in the pathogenesis of autism spectrum disorder (ASD). Mitochondrial transcription factor B2 (TFB2M) is an essential protein in mitochondrial gene expression. No reports have described TFB2M mutations and variations involved in any human diseases. We identified a rare homozygous c.790C>T (His264Tyr) variation in TFB2M gene in two Korean siblings with ASD by whole-exome sequencing. The roles of the TFB2M variation in the pathogenesis of ASD were investigated. Patient fibroblasts revealed increased transcription of mitochondrial genes and mitochondrial function in terms of ATP, membrane potential, oxygen consumption, and reactive oxygen species (ROS). Overexpression of the TFB2M variant in primary-cultured fibroblasts demonstrated significantly increased transcription of mitochondrial genes and mitochondrial function compared with overexpression of wild-type TFB2M. Molecular dynamics simulation of the TFB2M variant protein suggested an increase in the rigidity of the hinge region, which may cause alterations in loading and/or unloading of TFB2M on target DNA. Our results suggest that augmentation of mitochondrial gene expression and subsequent enhancement of mitochondrial function may be associated with the pathogenesis of ASD in Korean patients.
    MeSH term(s) Asian Continental Ancestry Group/genetics ; Autism Spectrum Disorder/genetics ; Base Sequence ; Cells, Cultured ; Child, Preschool ; DNA, Mitochondrial/genetics ; Female ; Fibroblasts/metabolism ; Gene Expression Regulation ; Genetic Predisposition to Disease ; Homozygote ; Humans ; Male ; Methyltransferases/chemistry ; Methyltransferases/genetics ; Mitochondria/metabolism ; Mitochondrial Proteins/chemistry ; Mitochondrial Proteins/genetics ; Models, Molecular ; Mutation/genetics ; Pedigree ; Transcription Factors/chemistry ; Transcription Factors/genetics
    Chemical Substances DNA, Mitochondrial ; Mitochondrial Proteins ; Transcription Factors ; Methyltransferases (EC 2.1.1.-) ; TFB2M protein, human (EC 2.1.1.-)
    Language English
    Publishing date 2018-11-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 205723-2
    ISSN 1090-2104 ; 0006-291X ; 0006-291X
    ISSN (online) 1090-2104 ; 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2018.10.194
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