1,785 research outputs found
Exploring Genetic Elements Related to the Co-occurrence of Crohn’s Disease and Rheumatoid Arthritis
Crohn’s disease (CD) is a rare inflammatory bowel disease that negatively impacts the lining of the digestive tract, while Rheumatoid Arthritis (RA) is an autoimmune disorder wherein the body attacks healthy cells, also causing inflammation. The primary cause of inflammation in both diseases is an overactive immune response, but patients who are diagnosed with RA are typically prescribed nonsteroidal anti-inflammatory drugs, which is not a suggested method for treating CD. Here we do a literature survey through PubMed to uncover genetic variants common to both diseases and highlighted four shared genes: HLA-DRB1, NOD2, CARD9, and CXCL10. We then examined these genes within ClinVar, the clinical variance database and documented associated pathogenicity with Single Nucleotide Polymorphism (SNPs) within each gene. Last, we utilized the All of Us (AoU) database, a public health research database with upwards of one million volunteers that includes genetic and disease information, in order to better understand which individuals are at risk of co-occurrence. We found that 251 individuals had a co-occurrence of CD and RA in this database and documented the demographic breakdown of these individuals. In the future, we will examine the correlation between these two diseases using patient information and metrics including physical therapy, joint pain, diet, and exercise along with SNP data
Tuning the structural and dynamical properties of a dipolar Bose-Einstein condensate: Ripples and instability islands
It is now well established that the stability of aligned dipolar Bose gases
can be tuned by varying the aspect ratio of the external harmonic confinement.
This paper extends this idea and demonstrates that a Gaussian barrier along the
strong confinement direction can be employed to tune both the structural
properties and the dynamical stability of an oblate dipolar Bose gas aligned
along the strong confinement direction. In particular, our theoretical
mean-field analysis predicts the existence of instability islands immersed in
otherwise stable regions of the phase diagram. Dynamical studies indicate that
these instability islands, which can be probed experimentally with present-day
technology, are associated with the going soft of a Bogoliubov--de Gennes
excitation frequency with radial breathing mode character. Furthermore, we find
dynamically stable ground state densities with ripple-like oscillations along
the radial direction. These structured ground states exist in the vicinity of a
dynamical radial roton-like instability.Comment: 9 pages, 11 figure
Pneumoperitoneum, pneumoretroperitoneum, pneumomediastinum and extensive subcutaneous emphysema in a patient with ulcerative colitis: a case report.
Abstract INTRODUCTION:
Pneumo-mediastinum and subcutaneous emphysema are rare presentations of lower gastrointestinal tract perforation. PRESENTATION OF CASE:
We are presenting the case of a middle aged man diagnosed with UC who presented with dyspnea and subcutaneous emphysema, attributed to multiple perforations including the stomach and colon. CASE DISCUSSION:
Patients with ulcerative colitis (UC) are at an increased risk of perforations due to friability of colonic mucosa given the chronic inflammation and relapsing flares. Chronic use of steroids further predisposes to stress ulcers. These pathologies sometimes coexist and identification of each is crucial for the appropriate treatment plan. CONCLUSION:
The case allows for a learning opportunity focusing on coexisting pathologies which may be differentiated based on anatomical knowledge and patient presentation.
Copyright © 2015 The Authors. Published by Elsevier Ltd.. All rights reserve
Enhanced uptake of water by oxidatively processed oleic acid
International audienceA quartz crystal microbalance apparatus has been used to measure the room temperature uptake of water vapour by thin films of oleic acid as a function of relative humidity, both before and following exposure of the films to various partial pressures of gas phase ozone. A rapid increase in the water-sorbing ability of the film is observed as its exposure to ozone is increased, followed by a plateau region in which additional water is taken up more gradually. In this fully-processed region the mass of water taken up by the film is about 4 times that of the unprocessed film. Infrared spectra of the films, measured after variable exposures to ozone, show dramatic increases in both the "free" and hydrogen-bonded O-H stretching regions, and a decrease in the intensity of olefinic features. These results are consistent with the formation of an oxygenated polymeric product or products, as well as the gas phase products previously identified
Some Thoughts on the WTC Disaster
The horror of death and destruction of innocents in New York and Washington, the launching of an indefinite 'war against terrorism', the harassment and worse of those seen as Muslims and Arabs in America, the opportunistic attempts to equate the September disaster with Israeli experience of terror (but not with that of the Palestinians) or alternatively to divert attention altogether from Israel's brutal occupation of the West Bank and Gaza by denying it has any connection, the absence of a real debate in our democracy. How to think about such matters
Ultrasound speckle noise reduction by radio-frequency data filtering
Ultrasound is a commonly used imaging modality for the examination of several pathologies due to its non-invasiveness, affordability and easiness of use. However, ultrasound images are degraded by an intrinsic artefact called 'speckle', which is the result of the constructive and destructive coherent summation of the ultrasound echoes. This paper aims to generate B-mode images out of radio-frequency (RF) data following standard procedures, a series of steps such as envelope detection, log-compression and scan conversion. Some low pass filters will be applied to RF data in order to achieve B-mode images with high quality by speckle noise reduction.info:eu-repo/semantics/publishedVersio
Inhomogeneous magnetism in single crystalline SrCuIrO: Implications to phase-separation concepts
The single crystalline form of an insulator, SrCuIrO, is
shown to exhibit unexpectedly more than one magnetic transition (at 5 and 19 K)
with spin-glass-like magnetic susceptibility behaviour. On the basis of this
finding, viz., inhomogeneous magnetism in a chemically homogeneous material, we
propose that the idea of "phase- separation" described for manganites [1] is
more widespread in different ways. The observed experimental features enable us
to make a comparison with the predictions of a recent toy model [2] on {\it
magnetic} phase separation in an insulating environment.Comment: 4 pages, 4 figure
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