Abstract:
:Atmospheric nitrated polycyclic aromatic hydrocarbons (NPAHs), which have been shown to have adverse health effects such as carcinogenicity, are formed in part through nitration reactions of their parent polycyclic aromatic hydrocarbons (PAHs) in the atmosphere. However, little is known about heterogeneous nitration rates of PAHs by gaseous NO2 on natural mineral substrates, such as desert dust aerosols. Herein by employing kinetic experiments using a flow reactor and surface analysis by Fourier transform infrared spectroscopy with pyridine adsorption, we demonstrate that the reaction is accelerated on acidic surfaces of mineral dust, particularly on those of clay minerals. In support of this finding, we show that levels of ambient particle-associated NPAHs in Beijing, China, significantly increased during heavy dust storms. These results suggest that mineral dust surface reactions are an unrecognized source of toxic organic chemicals in the atmosphere and that they enhance the toxicity of mineral dust aerosols in urban environments.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kameda T,Azumi E,Fukushima A,Tang N,Matsuki A,Kamiya Y,Toriba A,Hayakawa Kdoi
10.1038/srep24427subject
Has Abstractpub_date
2016-04-14 00:00:00pages
24427issn
2045-2322pii
srep24427journal_volume
6pub_type
杂志文章abstract::Medial arterial calcification (MAC) is a common outcome in diabetes and chronic kidney disease (CKD). It occurs as linear mineral deposits along the degraded elastin lamellae and is responsible for increased aortic stiffness and subsequent cardiovascular events. Current treatments for calcification, particularly in CK...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-39639-8
更新日期:2019-02-22 00:00:00
abstract::Generation and manipulation of quantum entangled electrons is an important concept in quantum mechanics, and necessary for advances in quantum information processing; but not yet established in solid state systems. A promising device is a superconductor-two quantum dots Cooper pair splitter. Early nanowire based devic...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep23051
更新日期:2016-03-14 00:00:00
abstract::Patients with scirrhous gastric cancer (SGC) frequently develop peritoneal dissemination, which leads to poor prognosis. The secreted protein angiopoietin-like-4 (ANGPTL4), which is induced by hypoxia, exerts diverse effects on cancer progression. Here, we aimed to determine the biological function of ANGPTL4 in SGC c...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-11769-x
更新日期:2017-09-11 00:00:00
abstract::Podocyte loss is the initial event in the development of glomerulosclerosis, the structural hallmark of progressive proteinuric nephropathies. Understanding mechanisms underlying glomerular injury is the key challenge for identifying novel therapeutic targets. In mice with protein-overload induced by bovine serum albu...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep28445
更新日期:2016-06-27 00:00:00
abstract::Low level light therapy receives increasing interest in the fields of tissue regeneration and wound healing. Several in vivo studies demonstrated the positive effects of LLLT on angiogenesis. This study aimed to investigate the underlying properties in vitro by comparing the effects of light therapy by light emitting ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-11061-y
更新日期:2017-09-06 00:00:00
abstract::Papain-like cysteine proteases (PLCPs) are a class of proteolytic enzymes involved in many plant processes. Compared with the extensive research in Arabidopsis thaliana, little is known in castor bean (Ricinus communis) and physic nut (Jatropha curcas), two Euphorbiaceous plants without any recent whole-genome duplica...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-18760-6
更新日期:2018-01-10 00:00:00
abstract::p97 is a highly abundant, homohexameric AAA+ ATPase that performs a variety of essential cellular functions. Characterized as a ubiquitin-selective chaperone, p97 recognizes proteins conjugated to K48-linked polyubiquitin chains and promotes their removal from chromatin and other molecular complexes. Changes in p97 ex...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-46949-4
更新日期:2019-07-17 00:00:00
abstract::Fatty acid oxidation and subsequent ketogenesis is one of the major mechanisms to maintain hepatic lipid homeostasis under fasting conditions. Fasting hormone glucagon has been shown to stimulate ketone body production through activation of PPARα; however, the signal pathway linking glucagon to PPARα is largely undisc...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep23317
更新日期:2016-03-17 00:00:00
abstract::Post-transcriptional gene regulation by microRNAs (miRNAs) is involved in memory formation. However, the roles of individual miRNAs in these processes remain largely unknown. In this study, we want to clarify the role of miR-181a in hippocampus-dependent memory formation. A transient increase in miR-181a expression wa...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-09095-3
更新日期:2017-08-16 00:00:00
abstract::We formerly developed an automatic colony count system based on the time-lapse shadow image analysis (TSIA). Here this system has been upgraded and applied to practical rapid decision. A microbial sample was spread on/in an agar plate with 90 mm in diameter as homogeneously as possible. We could obtain the results wit...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep10061
更新日期:2015-05-15 00:00:00
abstract:BACKGROUND:Congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency leads to impaired cortisol biosynthesis. Treatment includes glucocorticoid supplementation. We studied the specific metabolomics signatures in CAH patients using two different algorithms. METHODS:In a case-control study of CAH patients ma...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-65897-y
更新日期:2020-06-01 00:00:00
abstract::Animals thriving in hot deserts rely on extraordinary adaptations and thermoregulatory capacities to cope with heat. Uncovering such adaptations, and how they may be favoured by selection, is essential for predicting climate change impacts. Recently, the arid-adapted zebra finch was discovered to program their offspri...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-75909-6
更新日期:2020-11-03 00:00:00
abstract::We aimed to discover novel associations between leptin and circulating proteins which could link leptin to the development of cardiovascular disease in patients with type 2 diabetes (T2DM). In a discovery phase, we investigated associations between 88 plasma proteins, assessed with a proximity extension assay, and pla...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-69473-2
更新日期:2020-08-04 00:00:00
abstract::Protein aggregation is a common biological phenomenon, observed in different physiological and pathological conditions. Decreased protein solubility and a tendency to aggregate is also observed during physiological aging but the causes are currently unknown. Herein we performed a biophysical separation of aging-relate...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep19311
更新日期:2016-01-18 00:00:00
abstract::Hyperentangled Bell-state analysis (HBSA) is an essential method in high-capacity quantum communication and quantum information processing. Here by replacing the two-qubit controlled-phase gate with the two-qubit SWAP gate, we propose a scheme to distinguish the 16 hyperentangled Bell states completely in both the pol...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep19497
更新日期:2016-01-19 00:00:00
abstract::Liquids exhibit a sudden increase in viscosity when cooled fast enough, avoiding thermodynamically predicted route of crystallization. This phenomenon, known as glass transition, leads to the formation of non-periodic structures known as glasses. Extensive studies have been conducted on model materials to understand g...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-41231-z
更新日期:2019-03-14 00:00:00
abstract::The discovery of the insertion of IbT-DNA1 and IbT-DNA2 into the cultivated (hexaploid) sweetpotato [Ipomoea batatas (L.) Lam.] genome constitutes a clear example of an ancient event of Horizontal Gene Transfer (HGT). However, it remains unknown whether the acquisition of both IbT-DNAs by the cultivated sweetpotato oc...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-48691-3
更新日期:2019-08-29 00:00:00
abstract::The Great Amazon Reef (GARS) is an extensive mesophotic reef ecosystem between Brazil and the Caribbean. Despite being considered as one of the most important mesophotic reef ecosystems of the South Atlantic, recent criticism on the existence of a living reef in the Amazon River mouth was raised by some scientists and...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-50245-6
更新日期:2019-09-23 00:00:00
abstract::Clogging of porous media by soft particles has become a subject of extensive research in the last years and the understanding of the clogging mechanisms is of great importance for process optimization. The rise in the utilization of microfluidic devices brought the possibility to simulate membrane filtration and perfo...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-45791-y
更新日期:2019-06-25 00:00:00
abstract::Neurogenesis of hippocampal granule cells (GCs) persists throughout mammalian life and is important for learning and memory. How newborn GCs differentiate and mature into an existing circuit during this time period is not yet fully understood. We established a method to visualize postnatally generated GCs in organotyp...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep43724
更新日期:2017-03-03 00:00:00
abstract::Clostridium difficile is a gastrointestinal pathogen but how the bacterium colonises this niche is still little understood. Sortase enzymes covalently attach specific bacterial proteins to the peptidoglycan cell wall and are often involved in colonisation by pathogens. Here we show C. difficile proteins CD2537 and CD3...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-08322-1
更新日期:2017-08-23 00:00:00
abstract::Metamagnetism occuring inside a ferromagnetic phase is peculiar. Therefore, Sr4Ru3O10, a T C = 105 K ferromagnet, has attracted much attention in recent years, because it develops a pronounced metamagnetic anomaly below T C for magnetic fields applied in the crystallographic ab-plane. The metamagnetic transition move...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-03648-2
更新日期:2017-06-20 00:00:00
abstract::A multi-angle light scattering (MALS) system, combined with chromatographic separation, directly measures the absolute molar mass, size and concentration of the eluate species. The measurement of these crucial properties in solution is essential in basic macromolecular characterization and all research and production ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-09051-1
更新日期:2017-08-30 00:00:00
abstract::In many vertebrates, acoustic cues to body size are encoded in resonance frequencies of the vocal tract ("formants"), rather than in the rate of tissue vibration in the sound source ("pitch"). Anatomical constraints on the vocal tract's size render formants honest cues to size in many bird and mammal species, but it i...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-01948-1
更新日期:2017-05-12 00:00:00
abstract::Two new indolizidine alkaloids crepidatumines A (1) and B (2) together with the stereoisomer of dendrocrepidine B (3) and known analog dendrocrepine (4) were isolated from D. crepidatum. Their structures were determined by HR-ESI-MS, NMR, and Electronic Circular Dichroism (ECD) experiments together with comparison of ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-66552-2
更新日期:2020-06-12 00:00:00
abstract::Laser speckle flowmetry suffers from a debated quantification of the inverse relation between decorrelation time (τc) and blood flow velocity (V), i.e. 1/τc = αV. Using a modified microcirculation imager (integrated sidestream dark field - laser speckle contrast imaging [SDF-LSCI]), we experimentally investigate on th...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep25258
更新日期:2016-04-29 00:00:00
abstract::Marine bacterial strains are of great interest for their ability to produce secondary metabolites with anticancer potentials. Isolation, identification, characterization and anticancer activities of isolated bacteria from El-Hamra Lake, Wadi El-Natrun (Egypt) were the objectives of this study. The isolated bacteria we...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-70945-8
更新日期:2020-08-21 00:00:00
abstract::Recent findings suggest an association between obesity, loss of gut barrier function and changes in microbiota profiles. Our primary objective was to examine the effect of caloric restriction and subsequent weight reduction on gut permeability in obese women. The impact on inflammatory markers and fecal microbiota was...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-12109-9
更新日期:2017-09-20 00:00:00
abstract::The suprachiasmatic nucleus (SCN) central clock comprises two coupled oscillators, with light entraining the retinorecipient vasoactive intestinal peptide (VIP)-positive ventrolateral oscillator, which then entrains the arginine vasopressin (AVP)-positive dorsomedial oscillator. While glucose availability is known to ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-00699-3
更新日期:2017-04-04 00:00:00
abstract::Irisin is conventionally regarded as a myokine involved in the browning of white adipose tissue, energy expenditure and glucose tolerance. Its potential link to fat accumulation and metabolic dysfunction is debated. We sought to explore the relationship between circulating irisin and components of body composition in ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-57855-5
更新日期:2020-01-23 00:00:00