9,298 research outputs found
Proline-rich tyrosine kinase 2 mediates gonadotropin-releasing hormone signaling to a specific extracellularly regulated kinase-sensitive transcriptional locus in the luteinizing hormone beta-subunit gene
G protein-coupled receptor regulation of gene transcription primarily occurs through the phosphorylation of transcription factors by MAPKs. This requires transduction of an activating signal via scaffold proteins that can ultimately determine the outcome by binding signaling kinases and adapter proteins with effects on the target transcription factor and locus of activation. By investigating these mechanisms, we have elucidated how pituitary gonadotrope cells decode an input GnRH signal into coherent transcriptional output from the LH beta-subunit gene promoter. We show that GnRH activates c-Src and multiple members of the MAPK family, c-Jun NH2-terminal kinase 1/2, p38MAPK, and ERK1/2. Using dominant-negative point mutations and chemical inhibitors, we identified that calcium-dependent proline-rich tyrosine kinase 2 specifically acts as a scaffold for a focal adhesion/cytoskeleton-dependent complex comprised of c-Src, Grb2, and mSos that translocates an ERK-activating signal to the nucleus. The locus of action of ERK was specifically mapped to early growth response-1 (Egr-1) DNA binding sites within the LH beta-subunit gene proximal promoter, which was also activated by p38MAPK, but not c-Jun NH2-terminal kinase 1/2. Egr-1 was confirmed as the transcription factor target of ERK and p38MAPK by blockade of protein expression, transcriptional activity, and DNA binding. We have identified a novel GnRH-activated proline-rich tyrosine kinase 2-dependent ERK-mediated signal transduction pathway that specifically regulates Egr-1 activation of the LH beta-subunit proximal gene promoter, and thus provide insight into the molecular mechanisms required for differential regulation of gonadotropin gene expression
Co-integration of Silicon Nanodevices and NEMS for Advanced Information Processing (Invited Talk)
In this paper we present our recent attempts at developing the advanced information processing devices by integrating nano-electro-mechanical (NEM)structures into conventional silicon nanodevices. Firstly, we show high-speed and nonvolatile NEM memory which features a mechanically-bistable floating gate is integrated onto MOSFETs. Secondly we discuss hybrid systems of single-electron transistors and NEM structures for exploring new switching principles
Continuous decrease in serum brain-derived neurotrophic factor (BDNF) levels in a neuropsychiatric syndrome of systemic lupus erythematosus patient with organic brain changes
Atsuko Ikenouchi-Sugita, Reiji Yoshimura, Nobuhisa Ueda, Yuki Kodama, Wakako Umene-Nakano, Jun NakamuraDepartment of Psychiatry, School of Medicine, University of Occupational and Environmental Health, Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, JapanAbstract: In the present study, the authors reported on a case in neuropsychiatric syndromes of systemic lupus erythematosus (NPSLE) with irreversible organic brain changes. The authors also longitudinally investigated serum brain-derived neurotrophic factor (BDNF) levels in the patient. We found that serum BDNF levels in the NPSLE patient with irreversible organic brain change were consistently low, independent of the severity of psychiatric symptoms. Thus, the longitudinal measurement of serum BDNF levels might be useful in predicting the prognosis of NPSLE.Keywords: brain-derived neurotrophic factor; neuropsychiatric syndrome of systemic lupus erythematosus; organic brain chang
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Jia ru ju he wu dui jun yun tuan liu ji jun yun tuan liu dui liu de ying xiang
Wong, Chai Kwok = 加入聚合物對均勻湍流及均勻湍流對流的影響 / 黃濟國.Thesis M.Phil. Chinese University of Hong Kong 2013.Includes bibliographical references (leaves 89-91).Abstracts also in Chinese.Title from PDF title page (viewed on 01, November, 2016).Wong, Chai Kwok = Jia ru ju he wu dui jun yun tuan liu ji jun yun tuan liu dui liu de ying xiang / Huang Jiguo
Author Correction: Manipulating anion intercalation enables a high-voltage aqueous dual ion battery
The original version of this Article did not acknowledge Prof. Jun Fan as a corresponding author. This has now been corrected in both the PDF and HTML versions of the Article.link_to_subscribed_fulltex
一過性エノラートによる触媒的3成分タンデム反応の開発
金沢大学博士(創薬科学)博士論文 要旨Abstract/本文Full 以下に掲載:Green Chemistry 23(3) pp.1160-1164 2021. Royal Society of Chemistry. 共著者:Shunya Morita, Tomoyuki Yoshimura, Jun-ichi Matsuodoctoral thesi
A Simple Ion-exchange Method for the Determination of Sodium, P otassium, Magnesium and Calcium in Human Saliva. Jun Yoshimura and Keisuke Tachi b a n a 41
Author Correction: A proteomic landscape of diffuse-type gastric cancer
The original version of this Article contained an error in the email address of the corresponding author Jun Qin. The correct email is [email protected]. The error has been corrected in the HTML and PDF versions of the Article.</jats:p
Corrigendum: The taeniaticornis-group of genus Apanteles Foerster (Hymenoptera, Braconidae, Microgastrinae) from China with one new species. Journal of Hymenoptera Research 96: 21–31. doi: 10.3897/jhr.96.99649
In a paper about a new species of Apanteles (Microgastrinae)(Liu & Chen, 2023), we regret the omission of one author Jun-hua Chen in the second place of the author list who did great job in construction of the ZJUH collection for this study and the mistake in institution order and corresponding author. We provide the correct information below.Zhen Liu1, 2, Jun-hua He1, Xue-xin Chen11 Institute of Insect Sciences, Zhejiang University, Hangzhou 310058, China. 2 Zoology Key Laboratory of Hunan Higher Education, College of Life and Environmental Sciences, Hunan University of Arts and Science, Changde 415000, China
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