Abstract:
:The ubiquitin proteasome system (UPS) is a highly regulated mechanism of intracellular protein degradation and turnover. To evaluate the effect of crowding stress on the UPS in fish, grass carp (Ctenopharyngodon idellus) were randomly reared at low stocking density (LSD, 0.9 kg m-2) or high stocking density (HSD, 5.9 kg m-2) for 70 days. The expression of the genes regulating UPS, stress-related parameters, and profiles of amino acid in white muscle as well as growth rate of fish reared at two stocking densities were investigated. Fish exhibited significantly higher growth rate in the LSD group compared to the HSD group. Serum concentrations of cortisol, total protein, and glucose did not vary significantly in fish between two groups. There was no significant difference in the mRNA levels of nrf2, keap1, and hsp90 in white muscle of fish stocked at two densities at the endpoint of the experiment. In the UPS pathway, the expressions of ub, chip, psmc1 in the LSD group were significantly higher than those in the HSD group (P < 0.05). Ubiquitinated protein level and the content of 3-Methylhistidine elevated significantly in the LSD group (P < 0.05). The mRNA levels of mafbx, murf1, and s6k1 in the LSD group were significantly higher than those in HSD group (P < 0.05). These results illustrate that the fish cultured in lower stocking density would exhibit a greater growth rate and a fast protein turnover in muscle.
journal_name
Front Physioljournal_title
Frontiers in physiologyauthors
Sun Y,Liang X,Chen J,Tang R,Li L,Li Ddoi
10.3389/fphys.2018.00837subject
Has Abstractpub_date
2018-07-05 00:00:00pages
837issn
1664-042Xjournal_volume
9pub_type
杂志文章abstract::Microgravity as well as chronic muscle disuse are two causes of low back pain originated at least in part from paraspinal muscle deconditioning. At present no study investigated the complexity of the molecular changes in human or mouse paraspinal muscles exposed to microgravity. The aim of this study was to evaluate l...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2017.00279
更新日期:2017-05-05 00:00:00
abstract::RNAi is applied as a new and safe method for pest control in agriculture but efficiency and specificity of delivery of dsRNA trigger remains a critical issue. Various agents have been proposed to augment dsRNA delivery, such as engineered micro-organisms and synthetic nanoparticles, but the use of viruses has received...
journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2017.00399
更新日期:2017-06-14 00:00:00
abstract:Background:The aim of this study is to report on the genetic composition of Brugada syndrome (BrS) patients undergoing genetic testing in Hong Kong. Methods:Patients with suspected BrS who presented to the Hospital Authority of Hong Kong between 1997 and 2019, and underwent genetic testing, were analyzed retrospective...
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pub_type: 杂志文章
doi:10.3389/fphys.2020.574590
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pub_type:
doi:10.3389/fphys.2019.01336
更新日期:2019-11-08 00:00:00
abstract::Trace conditioning is a form of associative learning that can be induced by presenting a conditioned stimulus (CS) and an unconditioned stimulus (US) following each other, but separated by a temporal gap. This gap distinguishes trace conditioning from classical delay conditioning, where the CS and US overlap. To bridg...
journal_title:Frontiers in physiology
pub_type: 杂志文章
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journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2018.00742
更新日期:2018-06-26 00:00:00
abstract::[This corrects the article DOI: 10.3389/fphys.2016.00593.]. ...
journal_title:Frontiers in physiology
pub_type: 杂志文章,已发布勘误
doi:10.3389/fphys.2019.00648
更新日期:2019-05-22 00:00:00
abstract::A recent experiment proves the therapeutic effect of arm-in-arm walking, showing that if an aged participant walks in close synchrony with a young companion, the complexity matching effect results in the restoration of complexity in the former. A clear manifestation of complexity restoration is a perfect synchronizati...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.563068
更新日期:2020-09-30 00:00:00
abstract::Acute beer or alcohol ingestion reduces arterial stiffness, but the dose required to reduce arterial stiffness is unclear. Therefore, this study aimed to determine the acute effects of ingesting various amounts of beer on arterial stiffness in healthy men. Nine men (20-22 years) participated, in eight trials in random...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.01033
更新日期:2020-08-28 00:00:00
abstract::We present a novel approach to quantify heart rate variability (HRV) and the results of applying this approach to synthetic and original data sets. Our approach evaluates the periodicity of heart rate by calculating the transform of Relative Shannon Entropy, the maximum value of the RR interval periodogram, and the ma...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.00772
更新日期:2018-06-19 00:00:00
abstract::Autophagy, or cellular self-eating, is a tightly regulated cellular pathway the main purpose of which is lysosomal degradation and subsequent recycling of cytoplasmic material to maintain normal cellular homeostasis. Defects in autophagy are linked to a variety of pathological states, including cancer. Cancer is the d...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2013.00272
更新日期:2013-10-02 00:00:00
abstract::Introduction: Combined antiretroviral therapy (cART) used to treat acquired immunodeficiency virus (HIV) induces a number of adverse effects, such as insulin resistance and dyslipidemia, which ultimately increases the cardiovascular risk. Advanced glycation end products (AGEs) have been implicated in the etiology of c...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.01641
更新日期:2018-12-06 00:00:00
abstract::The study was conducted to compare and evaluate effects of four different macro-algaes on growth, immune response, and intestinal microbiota of Litopenaeus vannamei. In the rearing trial 1, shrimp were fed five diets containing four sources of macro-algaes for 8 weeks, named D1 (without macro-algae), D2 (Porphyra hait...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.01880
更新日期:2019-01-09 00:00:00
abstract:Introduction:Adenosine is an ATP derivative that is strongly implicated in the cardiovascular adaptive response to exercise. In this study, we hypothesized that during exercise the hyperemia, commonly observed during exercise in air, was counteracted by the downregulation of the adenosinergic pathway during hyperoxic e...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.00097
更新日期:2020-02-11 00:00:00
abstract:Background:Walking patterns can provide important indications of a person's health status and be beneficial in the early diagnosis of individuals with a potential walking disorder. For appropriate gait analysis, it is critical that natural functional walking characteristics are captured, rather than those experienced i...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.00090
更新日期:2020-02-20 00:00:00
abstract::[This corrects the article DOI: 10.3389/fphys.2019.01574.]. ...
journal_title:Frontiers in physiology
pub_type: 杂志文章,已发布勘误
doi:10.3389/fphys.2020.00072
更新日期:2020-02-11 00:00:00
abstract::The importance of electrolyte concentrations for cardiac function is well established. Electrolyte variations can lead to arrhythmias onset, due to their important role in the action potential (AP) genesis and in maintaining cell homeostasis. However, most of the human AP computer models available in literature were d...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.00314
更新日期:2020-04-15 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2019.00627
更新日期:2019-05-21 00:00:00
abstract::Background: The results from animal and human research indicate that acute intermittent hypoxia can enhance brain-derived neurotrophic factor (BDNF) plasma levels and gene expression. As BDNF is known to promote the differentiation of new neurons and the formation of synapses, it has been proposed to mediate adult neu...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.01337
更新日期:2018-10-01 00:00:00
abstract::We explored the metagenomic, metabolomic and trace metal makeup of intestinal microbiota and environment in healthy male participants during the run-in (5 day) and the following three 21-day interventions: normoxic bedrest (NBR), hypoxic bedrest (HBR) and hypoxic ambulation (HAmb) which were carried out within a contr...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.00198
更新日期:2018-03-13 00:00:00
abstract::Directed cell migration is essential all along an individual's life, from embryogenesis to tissue repair and cancer metastasis. Thus, due to its biomedical relevance, directed cell migration is currently under intense research. Directed cell migration has been shown to be driven by an assortment of external biasing cu...
journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2020.586432
更新日期:2020-11-25 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2019.01610
更新日期:2020-01-21 00:00:00
abstract::Carbon monoxide (CO) that is produced in a number of different mammalian tissues is now known to have significant effects on the cardiovascular system. These include: (i) vasodilation, (ii) changes in heart rate and strength of contractions, and (iii) modulation of autonomic nervous system input to both the primary pa...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2013.00282
更新日期:2013-10-17 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2011.00040
更新日期:2011-07-19 00:00:00
abstract::Untreated chronic hypertension causes left ventricular hypertrophy, which is related to the occurrence of atrial fibrillation. Dronedarone is an antiarrhythmic agent recently approved for atrial fibrillation. Our group previously demonstrated that dronedarone produced an early regression of left ventricular hypertroph...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.00967
更新日期:2020-08-26 00:00:00
abstract::Electronic cigarettes (ECs) are a modern nicotine delivery system that rapidly grew in widespread use, particularly in younger populations. Given the long history of the comorbidity of alcohol and nicotine use, the rising prevalence of ECs raises the question as to their role in the consumption of alcohol. Of the nume...
journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2020.593803
更新日期:2020-11-02 00:00:00
abstract::Chronic pressure overload can result in ventricular hypertrophy and eventually diastolic dysfunction. In normal myocardium, the time from peak tension to 50% relaxation of isolated cardiac myocardium is not directly determined by the time for calcium decline. This study aims to determine whether the time for calcium d...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2017.00945
更新日期:2017-12-04 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2017.00840
更新日期:2017-10-25 00:00:00
abstract::Background: Nrg4 expression has been linked to brown adipose tissue activity and browning of white adipocytes in mice. Here, we aimed to investigate whether these observations could be translated to humans by investigating NRG4 mRNA and markers of brown/beige adipocytes in human visceral (VAT) and subcutaneous adipose...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2019.00039
更新日期:2019-01-31 00:00:00
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journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.01445
更新日期:2018-10-15 00:00:00