39 research outputs found
Table_1_Validation of the revised version of the compound psychological capital scale (CPC-12R).docx
This study developed a Japanese version of the Revised Version of the Compound Psychological Capital Scale (CPC-12R) and tested its reliability and construct validity. The participants were 1,000 young adults (500 university students and 500 employees) recruited through an internet survey. Confirmatory factor analysis showed that the four first-order factors (hope, optimism, resilience, and self-efficacy) and one second-order factor (PsyCap) model of the previous study is appropriate for the Japanese context. In addition, Cronbach’s α and omega-higher-order of CPC-12R were sufficient. The measurement invariance analysis suggested sufficient scalar invariances for the employees and university students and across genders. The Japanese version of the CPC-12R had moderate positive correlations with job satisfaction, work engagement, conscientiousness, and extraversion, as well as a moderate negative correlation with negative emotionality. These findings provide evidence for sufficient reliability and construct validity of the Japanese version of the CPC-12R.</p
Linker histone variant H1T targets rDNA repeats
<p>H1T is a linker histone H1 variant that is highly expressed at the primary spermatocyte stage through to the early spermatid stage of spermatogenesis. While the functions of the somatic types of H1 have been extensively investigated, the intracellular role of H1T is unclear. H1 variants specifically expressed in germ cells show low amino acid sequence homology to somatic H1s, which suggests that the functions or target loci of germ cell-specific H1T differ from those of somatic H1s. Here, we describe the target loci and function of H1T. H1T was expressed not only in the testis but also in tumor cell lines, mouse embryonic stem cells (mESCs), and some normal somatic cells. To elucidate the intracellular localization and target loci of H1T, fluorescent immunostaining and ChIP-seq were performed in tumor cells and mESCs. We found that H1T accumulated in nucleoli and predominantly targeted rDNA repeats, which differ from somatic H1 targets. Furthermore, by nuclease sensitivity assay and RT-qPCR, we showed that H1T repressed rDNA transcription by condensing chromatin structure. Imaging analysis indicated that H1T expression affected nucleolar formation. We concluded that H1T plays a role in rDNA transcription, by distinctively targeting rDNA repeats.</p
Cell Surface-Anchored Fluorescent Probe Capable of Real-Time Imaging of Single Mast Cell Degranulation Based on Histamine-Induced Coordination Displacement
Mast cells secrete histamine upon
degranulation triggered by various
stimuli. Herein, we report the new detection method of mast cell degranulation
using the fluorescent probe capable of detection of the released histamine.
The probe was designed as the CoÂ(II) complex of a cyanine dye, which
shows a turn-on fluorescence signal based on a histamine-induced coordination
displacement mechanism. Fluorescence imaging using the cell surface-anchored
fluorescent probe enabled the real-time detection of mast cell degranulation
induced by various secretagogues
Manipulation of praise.
<p>(<i>A</i>) The sequence of events in the movie. The introduction clip was followed by 12 evaluation clips in a fixed order. After each evaluation clip, the participant was asked to rate their subjective happiness using a seven-point scale. (<i>B</i>) The instructions and the introduction clip differed between the Self and Other groups. In the Self group, participants were told that the movies represented an evaluation of their own training performance. Participants in the Other group were told that the movies represented the evaluation of another participant's performance. (<i>C</i>) The subjective judgment of participant happiness using a seven-point scale (1 = very unhappy, 4 = neutral, 7 = very happy). Error bars indicate the standard error of the mean (SEM). *<i>p</i><0.05 (unpaired two-tailed t-test). The subject of the photograph has given written informed consent, as outlined in the PLoS consent form, to publication of their photograph.</p
Examples of the comments from evaluation clips.
<p>Examples of the comments from evaluation clips.</p
Results.
<p>(<b>A</b>) Mean performance during the last three training trials on day 1 (LRN1) and the first three retest trials on day 2 (LRN 2). All groups showed offline improvements on the trained sequence. (<b>B</b>) The rate of offline improvement, the percent increase from LRN1 to LRN2, was significantly greater in the Self group than the Other and No-praise groups. Black, gray, and white points or bars represent the Self, Other, and No-praise groups, respectively. Error bars indicate the standard error of the mean (SEM). *<i>p</i><0.05 (Dunnett's test).</p
Experimental design.
<p>All participants were initially trained on a sequential finger-tapping task. They were then divided into three groups according to whether they received praise for their own training performance (Self group), praise for another participant's training performance (Other group), or no praise (No-praise group). The next day, participants completed a surprise retest of the trained sequence, a non-trained sequence (NEW), randomly-ordered tapping (RAN), and a working memory (WM) task.</p
Screening of biomarkers for liver adenoma in low-dose-rate γ-ray-irradiated mice
<p><b>Purpose:</b> Chronic low-dose-rate (20 mGy/day) γ-irradiation increases the incidence of hepatocellular adenomas (HCA) in female B6C3F1 mice. The purpose of this study is to identify potential serum biomarkers for these HCAs by a new approach.</p> <p><b>Material and methods:</b> Microarray analysis were performed to compare the gene expression profiles of HCAs from mice exposed to low-dose-rate γ-rays with those of normal livers from non-irradiated mice. From the differentially expressed genes, those for possibly secretory proteins were selected. Then, the levels of the proteins in sera were analysed by ELISA.</p> <p><b>Results:</b> Microarray analysis identified 4181 genes differentially expressed in HCAs (>2.0-fold). From these genes, those for α-fetoprotein (Afp), α-1B-glycoprotein (A1bg) and serine peptidase inhibitor Kazal type-3 (Spink3) were selected as the genes for candidate proteins. ELISA revealed that the levels of Afp and A1bg proteins in sera significantly increased and decreased, respectively, in low-dose-rate irradiated mice with HCAs and also same tendency was observed in human patients with hepatocellular carcinomas.</p> <p><b>Conclusion:</b> These results indicate that A1bg could be a new serum biomarker for liver tumor. This new approach of using microarray to select genes for secretory proteins is useful for prediction of novel tumor markers in sera.</p
MOESM1 of H2A O-GlcNAcylation at serine 40 functions genomic protection in association with acetylated H2AZ or ÃŽÅ‚H2AX
Additional file 1: Figure S1-S3 and Table S1-S2
Sleep Is Associated with Offline Improvement of Motor Sequence Skill in Children
<div><p>In adults, sleep is necessary for the offline improvement of certain skills, such as sequential finger tapping, but whether children show a similar effect is still debatable. Here, we tested whether sleep is associated with offline performance improvement in children. Nine- and 11-year-old children trained on an explicit sequential finger tapping task. On the night following training, their parents observed and recorded the duration of each child’s sleep. The following day, all children performed a surprise retest session on the previously trained sequence. In both 9- and 11-year-old children, skill performance was significantly improved during the first retest session relative to the end of training on the previous day, confirming the offline improvement in performance. There was a significant correlation between the degree of improvement and sleep duration the night after training, suggesting that in children, as in adults, sleep is associated with offline skill enhancement.</p></div