Abstract:
:A high level of plasma low-density lipoprotein (LDL) cholesterol is considered a risk factor for atherosclerosis. Because the hepatic LDL receptor (LDLR) is essential for clearing plasma LDL cholesterol, activation of LDLR is a promising therapeutic target for patients with atherosclerotic disease. Here we demonstrated how the flavonoid kaempferol stimulated the gene expression and activity of LDLR in HepG2 cells. The kaempferol-mediated stimulation of LDLR gene expression was completely inhibited by knockdown of Sp1 gene expression. Treatment of HepG2 cells with kaempferol stimulated the recruitment of Sp1 to the promoter region of the LDLR gene, as well as the phosphorylation of Sp1 on Thr-453 and Thr-739. Moreover, these kaempferol-mediated processes were inhibited in the presence of U0126, an ERK pathway inhibitor. These results suggest that kaempferol may increase the activity of Sp1 through stimulation of Sp1 phosphorylation by ERK1/2 and subsequent induction of LDLR expression and activity.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ochiai A,Miyata S,Iwase M,Shimizu M,Inoue J,Sato Rdoi
10.1038/srep24940subject
Has Abstractpub_date
2016-04-25 00:00:00pages
24940issn
2045-2322pii
srep24940journal_volume
6pub_type
杂志文章abstract::Although there is evidence that non-steroidal anti-inflammatory drugs (NSAIDs) might be able to prevent pancreatic cancer, the findings from epidemiological studies have been inconsistent. In this paper, we conducted a meta-analysis of observational studies to examine this possibility. We searched PubMed and Embase fo...
journal_title:Scientific reports
pub_type: 杂志文章,meta分析
doi:10.1038/srep15460
更新日期:2015-10-21 00:00:00
abstract::Anaerobic digestion is a common technology to biologically stabilize wasted solids produced in municipal wastewater treatment. Its efficiency is usually evaluated by calculating the reduction in volatile solids, which assumes no biomass growth associated with digestion. To determine whether this assumption is valid an...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep34090
更新日期:2016-09-26 00:00:00
abstract::The mechanism underlying tissue fusion mediated by laser irradiation remains unclear. We clarify the mechanisms underlying laser-mediated tissue fusion using a novel model. Microscopic examinations of morphological changes within the adventitia of a bovine carotid artery and a collagen sheet prepared from bovine dermi...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-45486-4
更新日期:2019-06-28 00:00:00
abstract::Plants would experience more complex environments, such as sudden heat shock (SHS) stress combined with elevated CO2 in the future, and might adapt to this stressful condition by optimizing photosynthetic carbon metabolism (PCM). It is interesting to understand whether this acclimation process would be altered in diff...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-26283-x
更新日期:2018-05-18 00:00:00
abstract::Post-operative atrial fibrillation (POAF) is postulated as a complex interaction of different pathogenic factors, suggesting inflammatory processes as a main trigger of this particular type of atrial fibrillation. Therefore, the study sought to assess the impact of cellular immunity on the development of POAF. Compari...
journal_title:Scientific reports
pub_type: 临床试验,杂志文章
doi:10.1038/s41598-018-28046-0
更新日期:2018-06-25 00:00:00
abstract::Muscle attachment sites (entheses) on dry bones are regularly used by paleontologists to infer soft tissue anatomy and to reconstruct behaviors of extinct organisms. This method is commonly applied to fossil hominin hand bones to assess their abilities to participate in Paleolithic stone tool behaviors. Little is know...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep28353
更新日期:2016-06-23 00:00:00
abstract::Immune responses are critical for defense against pathogens. However, prolonged viral infection can result in defective T cell immunity, leading to chronic viral infection. We studied immune activation in response to arenavirus infection during cholestasis using bile duct ligation (BDL). We monitored T cell responses,...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-30627-y
更新日期:2018-08-15 00:00:00
abstract::Neurotransmission and secretion of hormones involve a sequence of protein/lipid interactions with lipid turnover impacting on vesicle trafficking and ultimately fusion of secretory vesicles with the plasma membrane. We previously demonstrated that sphingosine, a sphingolipid metabolite, promotes formation of the SNARE...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-05948-z
更新日期:2017-07-20 00:00:00
abstract::Cucumber is an agriculturally and economically important vegetable crop worldwide. Fruit flesh thickness is an important trait for cucumber and also a central determinant of yield, yet little is known about the underlying mechanism of this trait. In this study, bulked segregant analysis (BSA) combined with specific le...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep15829
更新日期:2015-10-28 00:00:00
abstract::Short chain fatty acids (SCFAs) are protective against inflammatory diseases. Free fatty acid receptor 2 (FFA2), is a target of SCFAs however, their selectivity for FFA2 over other FFA receptors is limited. This study aimed to functionally characterise 2-(4-chlorophenyl)-3-methyl-N-(thiazole-2-yl)butanamide (4CMTB) an...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-36242-1
更新日期:2018-12-13 00:00:00
abstract::Faithful DNA replication is a prerequisite for cell proliferation. Several cytological studies have shown that chromosome structures alter in the S-phase of the cell cycle. However, the molecular mechanisms behind the alteration of chromosome structures associated with DNA replication have not been elucidated. Here, w...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep12720
更新日期:2015-07-30 00:00:00
abstract::Tuned gene expression is crucial to the proper growth and response to the environmental changes of an organism. To enable tunable gene expression as designed is desirable in both scientific research and industrial application. Here, we introduce a novel promoter switching method based on the DDI2 promoter (PDDI2) that...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-49000-8
更新日期:2019-08-29 00:00:00
abstract::Pragmatic theories of communication assume that humans evolved a species-unique inferential capacity to express and recognize intentions via communicative actions. We show that 13-month-old non-verbal infants can interpret the turn-taking exchange of variable tone sequences between unfamiliar agents as indicative of c...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-27804-4
更新日期:2018-06-22 00:00:00
abstract::Etomoxir (ETO) is a widely used small-molecule inhibitor of fatty acid oxidation (FAO) through its irreversible inhibitory effects on the carnitine palmitoyl-transferase 1a (CPT1a). We used this compound to evaluate the role of fatty acid oxidation in rapidly proliferating T cells following costimulation through the C...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-24676-6
更新日期:2018-04-19 00:00:00
abstract::Central to intrinsic apoptosis signaling is the release of cytochrome c from mitochondria, which depends on the pro-apoptotic effector proteins Bax, Bak or Bok. These pore-forming effector proteins share four Bcl-2 homology (BH) domains, a functionally essential and conserved sequence of hydrophobic amino acids in the...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-30603-6
更新日期:2018-08-20 00:00:00
abstract::Hfq is a pleiotropic regulator that mediates several aspects of bacterial RNA metabolism. The protein notably regulates translation efficiency and RNA decay in Gram-negative bacteria, usually via its interaction with small regulatory RNA. Besides these RNA-related functions, Hfq has also been described as one of the n...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-35060-9
更新日期:2018-11-14 00:00:00
abstract::Discrimination of species and geographical origins of traditional Chinese medicine (TCM) is essential to prevent adulteration and inferior problems. We studied Ephedra sinica Stapf, Ephedra intermedia Schrenk et C.A.Mey. and Ephedra przewalskii Bge. to investigate the relationship between inorganic element content and...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-28558-9
更新日期:2018-07-06 00:00:00
abstract::Previous analyses of the Atlantic cod genome showed unique combinations of lacking and expanded number of genes for the immune system. The present study examined lysozyme activity, lysozyme gene distribution and expression in cod. Enzymatic assays employing specific bacterial lysozyme inhibitors provided evidence for ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep28318
更新日期:2016-06-21 00:00:00
abstract::Motion sensitivity impairment in Alzheimer's disease (AD) is often characterized as elevated coherence threshold. An alternative way to measure motion sensitivity is the direction threshold, i.e., the minimal angle of motion direction that can be discriminated. So far, it is less clear whether and how the direction th...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-48942-3
更新日期:2019-09-10 00:00:00
abstract::Mastery over the structure of nanoparticles might be an effective way to enhance their performance for a given application. Herein we demonstrate the design of cage-bell nanostructures to enhance the methanol tolerance of platinum (Pt) nanoparticles while remaining their catalytic activity for oxygen reduction reactio...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep16219
更新日期:2015-11-18 00:00:00
abstract::In this paper we present a detailed theoretical investigation of the electric field induced mixing effect, in which the up and down frequency-conversion processes are obtained by inducing an effective second order susceptibility via the periodic spatial distribution of reversed biased p-i-n junctions. The possibility ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-03485-3
更新日期:2017-06-13 00:00:00
abstract::The Y-box proteins are multifunctional nucleic acid-binding proteins involved in various aspects of gene regulation. The founding member of the Y-box protein family, YB-1, functions as a transcription factor as well as a principal component of messenger ribonucleoprotein particles (mRNPs) in somatic cells. The nuclear...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-24401-3
更新日期:2018-04-18 00:00:00
abstract::We report on angle-dependent measurements of the sheet resistances and Hall coefficients of electron liquids in SmTiO3/SrTiO3/SmTiO3 quantum well structures, which were grown by molecular beam epitaxy on (001) DyScO3. We compare their transport properties with those of similar structures grown on LSAT [(La0.3Sr0.7)(Al...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-10841-w
更新日期:2017-09-04 00:00:00
abstract::Five selected carbazole derivatives, namely carbazole, 3,6-dibromocarbazole, 2-hydroxycarbazole, 1,2,3,4-tetrahydrocarbazole and 9-(2-ethylhexyl)carbazole-3,6-dicarboxaldehyde were investigated for their inhibitive effects on Desulfovibrio vulgaris (D. vulgaris) induced corrosion of mild steel and in 1 M HCl medium us...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-02446-0
更新日期:2017-05-26 00:00:00
abstract::Complex associations exist between inflammation and thrombosis, with the inflammatory state tending to promote coagulation. Fibrinogen, an acute phase protein, has been shown to interact with the amyloidogenic ß-amyloid protein of Alzheimer's disease. However, little is known about the association between fibrinogen a...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-39056-x
更新日期:2019-02-28 00:00:00
abstract::Next Generation Sequencing is dramatically increasing the number of known protein sequences, with related experimentally determined protein structures lagging behind. Structural bioinformatics is attempting to close this gap by developing approaches that predict structure-level characteristics for uncharacterized prot...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep36679
更新日期:2016-11-18 00:00:00
abstract::Invasive Salmonella diseases, both typhoid and invasive non-typhoidal Salmonella (iNTS), are seasonal bloodstream infections causing important morbidity and mortality globally in Africa. The reservoirs and transmission of both are not fully understood. We hypothesised that differences in the time-lagged relationships ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-56688-1
更新日期:2019-12-30 00:00:00
abstract::Although pneumococcal infection is a serious problem worldwide and has a high mortality rate, the molecular mechanisms underlying the lethality caused by pneumococcus remain elusive. Here, we show that BLT2, a G protein-coupled receptor for leukotriene B4 and 12(S)-hydroxyheptadecatrienoic acid (12-HHT), protects mice...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep34560
更新日期:2016-10-05 00:00:00
abstract::Most everyday surfaces are randomly rough and self-similar on sufficiently small scales. We investigated the tactile perception of randomly rough surfaces using 3D-printed samples, where the topographic structure and the statistical properties of scale-dependent roughness were varied independently. We found that the t...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-72890-y
更新日期:2020-09-25 00:00:00
abstract::Although technology has triumphed in facilitating routine genome sequencing, new challenges have been created for the data-analyst. Genome-scale surveys of human variation generate volumes of data that far exceed capabilities for laboratory characterization. By incorporating functional annotations as predictors, stati...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep13373
更新日期:2015-08-24 00:00:00