scholarly journals Not chronic exercise but acute exercise is related with increased cell survival, enhanced cell proliferation and decreased cell apoptosis

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Postula ◽  
Z Wicik ◽  
C Eyileten ◽  
A Soplinska ◽  
P Czajka ◽  
...  
Keyword(s):  
Cell Survival ◽  
Cell Apoptosis ◽  
Acute Exercise ◽  
Bioinformatics Analysis ◽  
Enrichment Analysis ◽  
Funding Source ◽  
Chronic Exercise ◽  
Short Term ◽  
Kegg Pathways

Abstract Background Endurance training can be described as long-time activity characterized by high dynamic and low to high power and was proven beneficial in CVD prevention. Nevertheless, studies reported that excessive endurance training can act as double-edged sword inducing the inflammatory response and cell apoptosis. This negative effect can be the reason of exercise duration. Purpose In order to investigate the effect of the training duration we compared and analysed acute vs chronic exercise by using in silico technique and we performed two different bioinformatics analysis: tissue-specific and cardiovascular process specific. Materials Bioinformatics analysis miRNA targets predictions, data filtering and visualization as interaction networks were performed. We used multiMiR 1.4 R package, hemopoiesis, angiogenesis, cardiac muscle functions, muscle hypertrophy process was performed a screening of the GO terms for the presence of the key words using the biomaRt package in R, Gene-gene interaction data were retrieved from String App, Cytoscape. Enrichment analysis of Reactome and KEGG pathways using String App. p<0.05. Results Enrichment analysis of Reactome and Kegg pathways revealed strong regulation of senescence-related pathways, RUNX1 expression and activity, Ca2+ signaling involving AGO genes. For the first time our in silico analysis showed that AGO, HMGA2 genes may be associated with adaptive changes in response to exercise. Importantly, we found, that PI3K/AKT signalling (pathway incusing cell survival, growth, and proliferation) was present only in acute but not in chronic exercise. Conclusions In our analysis long-term training miRNA-gene target interaction was different than the short-term training. As PI3K/AKT signaling was present only in acute exercise, we suggest that not long-term but short-term training can be related with increased cell survival, enhanced cell proliferation, and decreased cell apoptosis. Genes associated cardiac muscle function Funding Acknowledgement Type of funding source: Public grant(s) – National budget only. Main funding source(s): “Preludium” from the National Science Center, Poland

Acute Exercise and Sustained Attention on Memory Function

2020 ◽  
Vol 44 (3) ◽  
pp. 326-332
Author(s):  
Audreaiona Waters ◽  
Liye Zou ◽  
Myungjin Jung ◽  
Qian Yu ◽  
Jingyuan Lin ◽  
...  
Keyword(s):  
Neural Networks ◽  
Sustained Attention ◽  
Acute Exercise ◽  
Short Term Memory ◽  
Memory Function ◽  
Long Term Memory ◽  
Short Term ◽  
Attention Task ◽  
Term Memory

Objective: Sustained attention is critical for various activities of daily living, including engaging in health-enhancing behaviors and inhibition of health compromising behaviors. Sustained attention activates neural networks involved in episodic memory function, a critical cognition for healthy living. Acute exercise has been shown to activate these same neural networks. Thus, it is plausible that engaging in a sustained attention task and engaging in a bout of acute exercise may have an additive effect in enhancing memory function, which was the purpose of this experiment. Methods: 23 young adults (Mage = 20.7 years) completed 2 visits, with each visit occurring approximately 24 hours apart, in a counterbalanced order, including: (1) acute exercise with sustained attention, and (2) sustained attention only. Memory was assessed using a word-list paradigm and included a short- and long-term memory assessment. Sustained attention was induced via a sustained attention to response task (SART). Acute exercise involved a 15-minute bout of moderate-intensity exercise. Results: Short-term memory performance was significantly greater than long-term memory, Mdiff = 1.86, p < .001, and short-term memory for Exercise with Sustained Attention was significantly greater than short-term memory for Sustained Attention Only, Mdiff = 1.50, p = .01. Conclusion: Engaging in an acute bout of exercise before a sustained attention task additively influenced short-term memory function.

Obtaining Funding for New Researchers in Psychology

2003 ◽  
Vol 93 (1) ◽  
pp. 276-278
Author(s):  
James Robert Bras̆nić
Keyword(s):  
Federal Government ◽  
Ethnic Groups ◽  
Funding Source ◽  
Short Term ◽  
Men And Women

A mentor is the key person to assist a student who wishes to become an independent investigator. The federal government provides long-term funding for decades of research by an investigator, and short-term funding for years of transition from student to investigator is available from both governmental and private agencies. Grants designed for men and women and various ethnic groups are valuable resources. Courteous acknowledgment of sponsorship by the grantee facilitates continued grants from the funding source.

scholarly journals Prediction of Net Profit Growth of Pharmacy Companies on the Indonesian Stock Exchange

2019 ◽  
Author(s):  
Dhani Ichsanuddin Nur
Keyword(s):  
Stock Exchange ◽  
Funding Source ◽  
Negative Effects ◽  
Short Term ◽  
Applied Model ◽  
Positive Effects ◽  
Funding Sources ◽  
Net Profit ◽  
Auto Regressive

Background: The research purpose to analyzing impacts of funding source changes on pharmacy company profits that went public on Indonesian Stock Exchange, with analysis period of 2008 to 2013. Methods: The research applied analysis means in line with requirements of change variable measurements of funding sources in its interconnectedness with company profits; the applied model was Auto-regressive. Results: The research results indicated that changes of the last one-period short term debts had negative effects insignificantly on company profits, the last two-period short term debts had positive effects significantly on company profits, changes of the last one-period and two-period long term debts had negative effects insignificantly on company profits, equity changes of the last period had positive effects significantly on company profits, the last period profit changes had negative effects significantly on company profits. Conclusion: Last one-period short term, last one-period long term, last two-period long term debt changes, and last period profit have negative insignificant effect on company profit. Last two-period short term debt changes, last one-period equity changes, and last two-period equity changes have positive significant effect on company profit.

scholarly journals Whole-Body 12C Irradiation Transiently Decreases Mouse Hippocampal Dentate Gyrus Proliferation and Immature Neuron Number, but Does Not Change New Neuron Survival Rate

2018 ◽  
Vol 19 (10) ◽  
pp. 3078 ◽  
Author(s):  
Giulia Zanni ◽  
Hannah Deutsch ◽  
Phillip Rivera ◽  
Hung-Ying Shih ◽  
Junie LeBlanc ◽  
...  
Keyword(s):  
Survival Rate ◽  
Dentate Gyrus ◽  
Cell Survival ◽  
Time Course ◽  
Whole Body ◽  
Short Term ◽  
Hze Particles ◽  
Immature Neurons ◽  
Time Point

High-charge and -energy (HZE) particles comprise space radiation and they pose a challenge to astronauts on deep space missions. While exposure to most HZE particles decreases neurogenesis in the hippocampus—a brain structure important in memory—prior work suggests that 12C does not. However, much about 12C’s influence on neurogenesis remains unknown, including the time course of its impact on neurogenesis. To address this knowledge gap, male mice (9–11 weeks of age) were exposed to whole-body 12C irradiation 100 cGy (IRR; 1000 MeV/n; 8 kEV/µm) or Sham treatment. To birthdate dividing cells, mice received BrdU i.p. 22 h post-irradiation and brains were harvested 2 h (Short-Term) or three months (Long-Term) later for stereological analysis indices of dentate gyrus neurogenesis. For the Short-Term time point, IRR mice had fewer Ki67, BrdU, and doublecortin (DCX) immunoreactive (+) cells versus Sham mice, indicating decreased proliferation (Ki67, BrdU) and immature neurons (DCX). For the Long-Term time point, IRR and Sham mice had similar Ki67+ and DCX+ cell numbers, suggesting restoration of proliferation and immature neurons 3 months post-12C irradiation. IRR mice had fewer surviving BrdU+ cells versus Sham mice, suggesting decreased cell survival, but there was no difference in BrdU+ cell survival rate when compared within treatment and across time point. These data underscore the ability of neurogenesis in the mouse brain to recover from the detrimental effect of 12C exposure.

Integrated Bioinformatics Analysis Identifies Hub Genes Associated with Viral Infection and Alzheimer’s Disease

2021 ◽  
pp. 1-9
Author(s):  
Xiaoru Sun ◽  
Hui Zhang ◽  
Dongdong Yao ◽  
Yaru Xu ◽  
Qi Jing ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Viral Infection ◽  
Bioinformatics Analysis ◽  
Expression Patterns ◽  
Temporal Cortex ◽  
Enrichment Analysis ◽  
Hub Genes ◽  
Kegg Pathways ◽  
Barr Virus

Background: Alzheimer’s disease (AD) is a fatal neurodegenerative disease, the etiology of which is unclear. Previous studies have suggested that some viruses are neurotropic and associated with AD. Objective: By using bioinformatics analysis, we investigated the potential association between viral infection and AD. Methods: A total of 5,066 differentially expressed genes (DEGs) in the temporal cortex between AD and control samples were identified. These DEGs were then examined via weighted gene co-expression network analysis (WGCNA) and clustered into modules of genes with similar expression patterns. Of identified modules, module turquoise had the highest correlation with AD. The module turquoise was further characterized using Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways enrichment analysis. Results: Our results showed that the KEGG pathways of the module turquoise were mainly associated with viral infection signaling, specifically Herpes simplex virus, Human papillomavirus, and Epstein-Barr virus infections. A total of 126 genes were enriched in viral infection signaling pathways. In addition, based on values of module membership and gene significance, a total of 508 genes within the module were selected for further analysis. By intersecting these 508 genes with those 126 genes enriched in viral infection pathways, we identified 4 hub genes that were associated with both viral infection and AD: TLR2, COL1A2, NOTCH3, and ZNF132. Conclusion: Through bioinformatics analysis, we demonstrated a potential link between viral infection and AD. These findings may provide a platform to further our understanding of AD pathogenesis.

scholarly journals Description on the Effects of Acute and Chronic Exercise on Different Systems of the Body

2021 ◽  
pp. 272-275
Author(s):  
Dr. K. Rama Subba Reddy ◽  
Dr. T V Bala Krishna Reddy
Keyword(s):  
Acute Exercise ◽  
Maximal Exercise ◽  
Training Programme ◽  
Cycle Ergometer ◽  
The Body ◽  
Chronic Exercise ◽  
Maximal Exercise Test ◽  
Physiological Adaptations ◽  
Exercise Programmes

The purpose of this study is to explore various changes occur in different physical and physiological systems of the body with respect to the relevant chronic exercises. Acute and Chronic exercise programmes develops physiological adaptations in different systems of the body, due to the stress places on the systems. Acute exercise refers to short duration exercise, such as a cycle ergometer or a treadmill maximal exercise test. Chronic refers to extended or long term exercise, such a physical training programme of four to six months duration.

Experimental Effects of Acute Exercise on Episodic Memory Function: Considerations for the Timing of Exercise

2018 ◽  
Vol 122 (5) ◽  
pp. 1744-1754 ◽  
Author(s):  
James T. Haynes ◽  
Emily Frith ◽  
Eveleen Sng ◽  
Paul D. Loprinzi
Keyword(s):  
Episodic Memory ◽  
Prospective Memory ◽  
Acute Exercise ◽  
Memory Function ◽  
Moderate Intensity ◽  
Long Term Memory ◽  
Memory Encoding ◽  
Short Term ◽  
Term Memory

Our previous work employing a between-subject randomized controlled trial design suggests that exercising prior to memory encoding is more advantageous in enhancing retrospective episodic memory function when compared to exercise occurring during or after memory encoding. The present experiment evaluates this potential temporal effect of acute exercise on memory function while employing a within-subject, counterbalanced design. In a counterbalanced order (via Latin squares), 24 participants completed four visits including (1) exercising (moderate-intensity walking) prior to memory encoding, (2) exercising during memory encoding, (3) exercising after memory encoding, and (4) a control visit (no exercise). Retrospective memory function (short term and long term; 24-hour follow-up) was assessed from a multitrial word list. Prospective memory was assessed from a time-based task. Compared to all other visits, short-term memory was greater in the visit that involved exercising prior to memory encoding (F = 3.76; P = .01; η2 = .79). Similar results occurred for long-term memory, with no significant effects for prospective memory performance. We provide robust evidence demonstrating that acute moderate-intensity exercise prior to memory encoding is optimal in enhancing short-term and long-term memory function when compared to no exercise as well as exercising during and after memory encoding.

scholarly journals Identification of microRNAs associated with the survival of patients with gallbladder carcinoma

2020 ◽  
Vol 48 (5) ◽  
pp. 030006052091806
Author(s):  
Jianguo Wang ◽  
Yuxia Jin ◽  
Suping Li ◽  
Qinhao Song ◽  
Ping Tang
Keyword(s):  
Gallbladder Carcinoma ◽  
Transforming Growth Factor Beta ◽  
Transforming Growth Factor ◽  
Target Prediction ◽  
Enrichment Analysis ◽  
Gene Expression Omnibus ◽  
Short Term ◽  
Term Survival ◽  
Short Term Survival

Objective This study investigated micro (mi)RNAs associated with the survival of patients with gallbladder carcinoma (GBC). Methods miRNA expression profiling was carried out of 40 cancerous tissues from GBC patients with long-term (n = 20) and short-term (n = 20) survival and eight healthy gallbladder tissues from the Gene Expression Omnibus database. miRNAs dysregulated in GBC patients with long-term or short-term survival were identified using GEO2R and VennDiagram packages, and analyzed by miRNA target prediction tools and the clusterProfiler package. Results Compared with healthy gallbladder tissues, 104 and 124 miRNAs were dysregulated in cancerous tissues of GBC patients with long-term survival and short-term survival, respectively. Two miRNAs (hsa-miR-142-5p and hsa-miR-146b-5p) and 22 miRNAs (such as hsa-miR-30a-3p, hsa-miR-660-5p, and hsa-miR-338-3p) were exclusively dysregulated in GBC patients with long-term and short-term survival, respectively. Enrichment analysis revealed that miRNAs exclusively dysregulated in GBC patients with short-term survival were involved in 46 biological processes, 10 cellular components, 11 molecular functions, and 44 pathways such as morphogenesis of an epithelium, response to transforming growth factor beta, heterochromatin, and phosphatase binding. Conclusion This study not only identified some promising biomarkers for predicting survival in GBC patients, but also contributed to our understanding of the pathogenesis and prognosis of GBC.

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