328 research outputs found
A novel statistical method for assessing SSR variation in autotetraploid alfalfa (Medicago sativa L.)
Extracellular High-Mobility Group Box 1 Acts as an Innate Immune Mediator to Enhance Autoimmune Progression and Diabetes Onset in NOD Mice
OBJECTIVE—The implication of innate immunity in type 1 diabetes development has long been proposed. High-mobility group box 1 (HMGB1), an evolutionarily conserved chromosomal protein, was recently recognized to be a potent innate inflammatory mediator when released extracellularly. We sought to test the hypothesis that HMGB1 acts as an innate immune mediator implicated in type 1 diabetes pathogenesis
Constraints on Spin-Independent Nucleus Scattering with sub-GeV Weakly Interacting Massive Particle Dark Matter from the CDEX-1B Experiment at the China Jin-Ping Laboratory
We report results on the searches of weakly interacting massive particles
(WIMPs) with sub-GeV masses () via WIMP-nucleus spin-independent
scattering with Migdal effect incorporated. Analysis on time-integrated (TI)
and annual modulation (AM) effects on CDEX-1B data are performed, with 737.1
kgday exposure and 160 eVee threshold for TI analysis, and 1107.5
kgday exposure and 250 eVee threshold for AM analysis. The sensitive
windows in are expanded by an order of magnitude to lower DM masses
with Migdal effect incorporated. New limits on at
90\% confidence level are derived as 1010
for TI analysis at 50180 MeV/, and
1010 for AM analysis at
75 MeV/3.0 GeV/.Comment: 5 pages, 4 figure
Search for Light Weakly-Interacting-Massive-Particle Dark Matter by Annual Modulation Analysis with a Point-Contact Germanium Detector at the China Jinping Underground Laboratory
We present results on light weakly interacting massive particle (WIMP)
searches with annual modulation (AM) analysis on data from a 1-kg mass -type
point-contact germanium detector of the CDEX-1B experiment at the China Jinping
Underground Laboratory. Datasets with a total live time of 3.2 yr within a 4.2
yr span are analyzed with analysis threshold of 250 eVee. Limits on
WIMP-nucleus (-) spin-independent cross sections as function of WIMP
mass () at 90\% confidence level (C.L.) are derived using the dark
matter halo model. Within the context of the standard halo model, the 90\% C.L.
allowed regions implied by the DAMA/LIBRA and CoGeNT AM-based analysis are
excluded at 99.99\% and 98\% C.L., respectively. These results correspond to
the best sensitivity at 6 among WIMP AM
measurements to date.Comment: 5 pages, 4 figure
A multi-targeted approach to suppress tumor-promoting inflammation
Cancers harbor significant genetic heterogeneity and patterns of relapse following many therapies are due to evolved resistance to treatment. While efforts have been made to combine targeted therapies, significant levels of toxicity have stymied efforts to effectively treat cancer with multi-drug combinations using currently approved therapeutics. We discuss the relationship between tumor-promoting inflammation and cancer as part of a larger effort to develop a broad-spectrum therapeutic approach aimed at a wide range of targets to address this heterogeneity. Specifically, macrophage migration inhibitory factor, cyclooxygenase-2, transcription factor nuclear factor-κB, tumor necrosis factor alpha, inducible nitric oxide synthase, protein kinase B, and CXC chemokines are reviewed as important antiinflammatory targets while curcumin, resveratrol, epigallocatechin gallate, genistein, lycopene, and anthocyanins are reviewed as low-cost, low toxicity means by which these targets might all be reached simultaneously. Future translational work will need to assess the resulting synergies of rationally designed antiinflammatory mixtures (employing low-toxicity constituents), and then combine this with similar approaches targeting the most important pathways across the range of cancer hallmark phenotypes
Constraints on Sub-GeV Dark Matter--Electron Scattering from the CDEX-10 Experiment
We present improved germanium-based constraints on sub-GeV dark matter via
dark matter--electron (-) scattering using the 205.4 kgday
dataset from the CDEX-10 experiment. Using a novel calculation technique, we
attain predicted - scattering spectra observable in high-purity
germanium detectors. In the heavy mediator scenario, our results achieve 3
orders of magnitude of improvement for larger than 80 MeV/c
compared to previous germanium-based - results. We also present the
most stringent - cross-section limit to date among experiments using
solid-state detectors for larger than 90 MeV/c with heavy
mediators and larger than 100 MeV/c with electric dipole
coupling. The result proves the feasibility and demonstrates the vast potential
of a new - detection method with high-purity germanium detectors in
ultralow radioactive background.Comment: 6 pages, 3 figures. Version updated to match PRL versio
Exotic Dark Matter Search with CDEX-10 Experiment at China Jinping Underground Laboratory
A search for exotic dark matter (DM) in the sub-GeV mass range has been
conducted using 205 kgday data taken from a p-type point contact
germanium detector of CDEX-10 experiment at China Jinping underground
laboratory. New low-mass dark matter searching channels, neutral current
fermionic DM absorption () and DM-nucleus
32 scattering (), have been
analyzed with an energy threshold of 160 eVee. No significant signal was found.
Thus new limits on the DM-nucleon interaction cross section are set for both
models at sub-GeV DM mass region. A cross section limit for the fermionic DM
absorption is set to be (90\% C.L.) at DM mass of
10 MeV/c. For the DM-nucleus 32 scattering scenario, limits
are extended to DM mass of 5 MeV/c and 14 MeV/c for the massless dark
photon and bound DM final state, respectively.Comment: 5 pages, 7 figure
Search for exotic neutrino interactions using solar neutrinos in the CDEX-10 experiment
We investigate the exotic neutrino interactions using the 205.4 kg day
exposure dataset of the CDEX-10 experiment at the China Jinping Underground
Laboratory. New constraints on the mass and couplings of extra gauge boson are
presented. The results are interpreted in two physics scenarios including an
gauge boson induced interaction between active neutrinos and
electron/nucleus, and a dark photon induced the interaction between sterile
neutrino and electron/nucleus where the dark photon couples to the Standard
Model particles through kinetic mixing with the photon. This work probes new
parameter space involving sterile neutrino coupling with dark photon with
masses below 1 eV at some typical choice of and
, which was previously unexplored by
dark matter direct detection experiments and neutrino experiments.Comment: 6 pages, 3 figure
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