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https://www.readbyqxmd.com/read/28707365/use-of-3-d-digital-subtraction-rotational-angiography-during-cardiac-catheterization-of-infants-and-adults-with-congenital-heart-diseases
#1
Sushitha Surendran, B Rush Waller, Lucas Elijovich, Vijaykumar Agrawal, Andrew Kuhls-Gilcrist, Jason Johnson, Thomas Fagan, Shyam K Sathanandam
OBJECTIVE: To compare image quality, radiation and contrast doses required to obtain 3D-Digital subtraction rotational angiography (3D-DSRA) with 3D-Digital rotational angiography (3D-DRA) in infants (children ≤ 2 years of age) and adults with congenital heart diseases (ACHD). BACKGROUND: 3D-DRA can be performed with radiation doses comparable to bi-plane cine-angiography. However, 3D-DRA in infants requires a large contrast volume. The resolution of 3D-DRA performed in ACHD patients is limited by their soft tissue density...
July 14, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28692472/quantification-of-immune-dysregulation-by-next-generation-polymerase-chain-reaction-to-improve-sepsis-diagnosis-in-surgical-patients
#2
Raquel Almansa, Alicia Ortega, Ana Ávila-Alonso, Maria Heredia-Rodríguez, Silvia Martín, Diana Benavides, Marta Martín-Fernandez, Lucia Rico, César Aldecoa, Jesús Rico, Iñigo López de Cenarruzabeitia, Juan Beltrán de Heredia, Esther Gomez-Sanchez, Marta Aragón, Cristina Andrés, Dolores Calvo, David Andaluz-Ojeda, Pilar Liu, Francisco Blanco-Antona, Lydia Blanco, Jose Ignacio Gómez-Herreras, Eduardo Tamayo, Jesus F Bermejo-Martin
OBJECTIVES: To quantify immunological dysfunction in surgical patients with presence/absence of sepsis using a droplet digital polymerase chain reaction (ddPCR) transcriptomic analysis. The study also aims to evaluate this approach for improving identification of sepsis in these patients. BACKGROUND: Immune dysregulation is a central event in sepsis. Quantification of the expression of immunological genes participating in the pathogenesis of sepsis could represent a new avenue to improve its diagnosis...
July 7, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28687085/regulation-of-early-growth-response-2-expression-by-secreted-frizzled-related-protein-1
#3
Kelly J Gregory, Stephanie M Morin, Sallie S Schneider
BACKGROUND: Secreted frizzled-related protein 1 (SFRP1) expression is down-regulated in a multitude of cancers, including breast cancer. Loss of Sfrp1 also exacerbates weight gain as well as inflammation. Additionally, loss of SFRP1 enhances TGF-β signaling and the downstream MAPK pathway. TGF-β has been shown to increase the expression of Early Growth Response 2 (EGR2), a transcription factor implicated in immune function in a wide variety of cell types. The work described here was initiated to determine whether SFRP1 modulation affects TGF-β mediated EGR2 expression in mammary tissues as well as macrophage polarization...
July 7, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28668526/effect-of-supplemental-concentrate-during-the-dry-period-or-early-lactation-on-rumen-epithelium-gene-and-protein-expression-in-dairy-cattle-during-the-transition-period
#4
K Dieho, J van Baal, L Kruijt, A Bannink, J T Schonewille, D Carreño, W H Hendriks, J Dijkstra
We previously reported 2 experiments with rumen-cannulated Holstein-Friesian dairy cows showing that during the transition period, rumen papillae surface area, and fractional absorption rate of volatile fatty acids (VFA) increase after calving. However, supplemental concentrate during the dry period and rate of increase of concentrate allowance during lactation affected papillae surface area, but not VFA absorption. Here we report the changes in gene and protein expression in rumen papillae related to tissue growth and VFA utilization...
June 28, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28657666/assessing-the-effect-of-d59p-mutation-in-the-de-loop-region-in-amyloid-aggregation-propensity-of-%C3%AE-2-microglobulin-a-molecular-dynamics-simulation-study
#5
Simranjeet Singh Narang, Suniba Shuaib, Deepti Goyal, Bhupesh Goyal
Dialysis-related amyloidosis (DRA) is a severe condition characterized by the accumulation of amyloidogenic β2-microglobulin (β2m) protein around skeletal joints and bones. The recent studies highlighted a critical role of the DE loop region for β2m stability and amyloid aggregation propensity. Despite significant efforts, the molecular mechanism of enhanced aggregation due to D59P mutation in the DE loop region remain elusive. In the present study, explicit-solvent molecular dynamics (MD) simulations were performed to examine the key changes in the structural and dynamic properties of wild type (wt) β2m upon D59P mutation...
June 28, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28637237/long-term-evolutionary-change-in-the-lumen-of-intracranial-atherosclerotic-stenosis-following-angioplasty-and-stenting
#6
Simon C H Yu, Tiffany W W Lau, Simon S M Wong, Kwok T Lee, Lawrence K S Wong, Thomas W H Leung
BACKGROUND: Angioplasty and stenting is a recognized treatment option for patients with intracranial atherosclerosis. OBJECTIVE: To evaluate the long-term evolutionary luminal changes of intracranial atherosclerosis after angioplasty and stenting. METHODS: This was a retrospective study with patient consent. Eighty-two patients presenting with acute and minor cerebral ischemia due to stenosis ≥70%, who had received medical therapy with or without stenting (Wingspan), were invited...
June 14, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28635034/modular-transmit-receive-arrays-using-very-high-permittivity-dielectric-resonator-antennas
#7
Thomas P A O'Reilly, Thomas Ruytenberg, Andrew G Webb
PURPOSE: Dielectric resonator antenna (DRAs) are compact structures that exhibit low coupling between adjacent elements and therefore can be used as MRI transmit arrays. In this study, we use very high permittivity materials to construct modular flexible transceive arrays of a variable numbers of elements for operation at 7T. METHODS: DRAs were constructed using rectangular blocks of ceramic (lead zirconate titanate, εr  = 1070) with the transverse electric (TE)01 mode tuned to 298 MHz...
June 20, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28606698/comparative-analyses-of-whole-genome-sequences-of-leishmania-infantum-isolates-from-humans-and-dogs-in-northeastern-brazil
#8
D G Teixeira, G R G Monteiro, D R A Martins, M Z Fernandes, V Macedo-Silva, M Ansaldi, P R P Nascimento, M A Kurtz, J A Streit, M F F M Ximenes, R D Pearson, A Miles, J M Blackwell, M E Wilson, A Kitchen, J E Donelson, J P M S Lima, S M B Jeronimo
The genomic sequences of 20 Leishmania infantum isolates collected in northeastern Brazil were compared with each other and with the available genomic sequences of 29 L. infantum/donovani isolates from Nepal and Turkey. The Brazilian isolates were obtained in the early 1990s or since 2009 from patients with visceral or non-ulcerating cutaneous leishmaniasis, asymptomatic humans, or dogs with visceral leishmaniasis. Two isolates were from the blood and bone marrow of the same visceral leishmaniasis patient. All 20 genomic sequences display 99...
June 10, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28572085/cdx2-upregulates-slc26a3-gene-expression-in-intestinal-epithelial-cells
#9
Ishita Chatterjee, Anoop Kumar, Rosa Maria Castilla Madrigal, Oscar Pellon-Cardenas, Ravinder K Gill, Waddah A Alrefai, Alip Borthakur, Michael Verzi, Pradeep K Dudeja
SLC26A3 (Down Regulated in Adenoma, DRA) plays a key role in mammalian intestinal NaCl absorption via mediating apical membrane Cl(-)/HCO3(-) exchange. DRA function and expression are significantly decreased in diarrhea associated with inflammatory bowel diseases (IBD). DRA is also considered to be a marker of cellular differentiation, and is predominantly expressed in differentiated epithelial cells. Caudal type homeobox protein-2 (CDX2) is known to regulate genes involved in intestinal epithelial differentiation and proliferation...
June 1, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28562227/a-combinatorial-approach-to-induce-sensory-axon-regeneration-into-the-dorsal-root-avulsed-spinal-cord
#10
Jan Hoeber, Niclas König, Carl Trolle, Emilia Lekholm, Chunfang Zhou, Stanislava Pankratova, Elisabet Åkesson, Robert Fredriksson, Håkan Aldskogius, Elena N Kozlova
Spinal root injuries result in newly formed glial scar formation, which prevents regeneration of sensory axons causing permanent sensory loss. Previous studies showed that delivery of trophic factors or implantation of human neural progenitor cells supports sensory axon regeneration and partly restores sensory functions. In this study, we elucidate mechanisms underlying stem cell-mediated ingrowth of sensory axons after dorsal root avulsion (DRA). We show that human spinal cord neural stem/progenitor cells (hscNSPC), and also, mesoporous silica particles loaded with growth factor mimetics (MesoMIM), supported sensory axon regeneration...
July 15, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28556529/a-multicenter-cross-sectional-study-for-bone-articular-lesions-associated-with-dialysis-related-amyloidosis-in-japan
#11
Shinichi Nishi, Junichi Hoshino, Suguru Yamamoto, Shunsuke Goto, Hideki Fuji, Yoshifumi Ubara, Yoshihiro Motomiya, Hiroyuki Morita, Kenmei Takaichi, Kunihiro Yamagata, Takashi Shigematsu, Mitsuharu Ueda, Yukio Ando
AIM: Dialysis-related amyloidosis (DRA) exhibits multiple bone-articular lesions, such as carpal tunnel syndrome (CTS), trigger finger (TF), spinal canal stenosis (SCS), destructive spondyloarthropathy (DSA), bone cysts, and joint pains. DRA leads to a decrease in activities of daily living (ADL). We investigated the initiation of CTS and TF, and evaluated the relationship between walking disturbances and bone-articular lesions or joint pains. METHODS: A multicenter cross-sectional study was performed...
May 26, 2017: Nephrology
https://www.readbyqxmd.com/read/28554661/using-dr52c-ni-2-mimotope-tetramers-to-detect-ni-2-reactive-cd4-t-cells-in-patients-with-joint-replacement-failure
#12
Yan Zhang, Yang Wang, Kirsten Anderson, Andrey Novikov, Zikou Liu, Karin Pacheco, Shaodong Dai
T cell mediated hypersensitivity to nickel (Ni(2+)) is one of the most common causes of allergic contact dermatitis. Ni(2+) sensitization may also contribute to the failure of Ni(2+) containing joint implants, and revision to non-Ni(2+) containing hardware can be costly and debilitating. Previously, we identified Ni(2+) mimotope peptides, which are reactive to a CD4(+) T cell clone, ANi2.3 (Vα1, Vβ17), isolated from a Ni(2+) hypersensitive patient with contact dermatitis. This T cell is restricted to the major histocompatibility complex class II (MHCII) molecule, Human Leukocyte Antigen (HLA)-DR52c (DRA, DRB3*0301)...
May 26, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28551910/-level-and-oxidation-of-beta-2-microglobulin-in-hemodialysis-patients-treated-with-intravenous-iron-during-dialysis-with-high-flux-compared-to-low-flux-dialyzers
#13
Regina Michelis, Shifra Sela, Alexander Lanzmann, Olga Tanchilevski, Revital Shurtz-Swirski, Batya Kristal
INTRODUCTION: Serum levels of β2-microglobulin (b2M) are significantly higher in patients with end stage renal failure undergoing hemodialysis (HD) and its accumulation accelerates Dialysis Related Amyloidosis (DRA). In HD patients low-flux dialysis, intravenous (IV) iron (administered for the treatment of anemia) affects ß2M removal during dialysis. IV iron also affects the oxidation of plasma proteins, including b2M. AIMS: To examine the effect of intravenous iron therapy on ß2M levels and oxidation in HD patients treated with high-flux compared with low-flux dialyzers...
May 2017: Harefuah
https://www.readbyqxmd.com/read/28536682/a-case-of-intramural-coronary-amyloidosis-associated-with-hemodialysis
#14
Faisal M Huq Ronny, George Kleinman, Paul James Kurtin, John Thomas Fallon
Dialysis-related amyloidosis predominantly occurs in osteo-articular structures and dialysis-related amyloid (DRA) substances also deposit in extra-articular tissues. Clinical manifestations of DRA include odynophagia, gastrointestinal hemorrhage, intestinal obstruction, kidney stones, myocardial dysfunction, and subcutaneous tumors. The pathological characteristics of DRA in the heart of hemodialysis patients have rarely been reported. We report the case of a 73-year-old female with a history of cerebral palsy and end-stage renal disease status post two failed renal transplants who had been on hemodialysis for 30 years...
January 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28526688/loss-of-the-anion-exchanger-dra-slc26a3-or-pat1-slc26a6-alters-sulfate-transport-by-the-distal-ileum-and-overall-sulfate-homeostasis
#15
Jonathan M Whittamore, Marguerite Hatch
The ileum is considered the primary site of inorganic sulfate (SO4(2-)) absorption. In the present study, we explored the contributions of the apical chloride/bicarbonate (Cl(-)/HCO3(-)) exchangers DRA (Slc26a3), and PAT1 (Slc26a6), to the underlying transport mechanism. Transepithelial (35)SO4(2-) and (36)Cl(-) fluxes were determined across isolated, short-circuited segments of the distal ileum from wild-type (WT), DRA-knockout (KO) and PAT1-KO mice, together with measurements of urine and plasma sulfate. The WT distal ileum supported net sulfate absorption (197...
May 19, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28513826/noncontingent-reinforcement-without-extinction-plus-differential-reinforcement-of-alternative-behavior-during-treatment-of-problem-behavior
#16
Jennifer N Fritz, Lynsey M Jackson, Nicole A Stiefler, Barbara S Wimberly, Amy R Richardson
The effects of noncontingent reinforcement (NCR) without extinction during treatment of problem behavior maintained by social positive reinforcement were evaluated for five individuals diagnosed with autism spectrum disorder. A continuous NCR schedule was gradually thinned to a fixed-time 5-min schedule. If problem behavior increased during NCR schedule thinning, a continuous NCR schedule was reinstated and NCR schedule thinning was repeated with differential reinforcement of alternative behavior (DRA) included...
May 17, 2017: Journal of Applied Behavior Analysis
https://www.readbyqxmd.com/read/28469621/snp-variants-in-major-histocompatibility-complex-are-associated-with-sarcoidosis-susceptibility-a-joint-analysis-in-four-european-populations
#17
Annika Wolin, Elisa Laura Lahtela, Verneri Anttila, Martin Petrek, Johan Grunewald, Coline H M van Moorsel, Anders Eklund, Jan C Grutters, Vitezslav Kolek, Frantisek Mrazek, Amit Kishore, Leonid Padyukov, Anne Pietinalho, Marcus Ronninger, Mikko Seppänen, Olof Selroos, Marja-Liisa Lokki
Sarcoidosis is a multiorgan inflammatory disorder with heritability estimates up to 66%. Previous studies have shown the major histocompatibility complex (MHC) region to be associated with sarcoidosis, suggesting a functional role for antigen-presenting molecules and immune mediators in the disease pathogenesis. To detect variants predisposing to sarcoidosis and to identify genetic differences between patient subgroups, we studied four genes in the MHC Class III region (LTA, TNF, AGER, BTNL2) and HLA-DRA with tag-SNPs and their relation to HLA-DRB1 alleles...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28463678/laparoscopic-donor-nephrectomy-of-dual-renal-artery-kidneys-single-center-experience
#18
Ibrahim Al-Oraifi, Mansour Tawfeeq, Hamad Al-Hellow, Mohammed S Al-Qahtani, Meteb M Al-Bugami, Abdulwahab Al-Shahrani, Gelu Osian
Background: Multiple renal artery (MRA) kidneys represent a special challenge for surgeons, during both donor nephrectomy and renal transplantation. AIMS: This study aims to evaluate both donors and recipients outcomes of laparoscopically procured dual renal artery (DRA) kidneys. Patients and Methods: We reviewed the medical records of all living kidney donors who underwent laparoscopic donor nephrectomy between April 2009 and December 2014, and their recipients. Operative details and immediate outcomes of both donors and recipients of DRA kidneys were compared to those of donors and recipients of single renal artery (SRA) kidneys...
March 2017: Chirurgia
https://www.readbyqxmd.com/read/28459231/salmonella-kentucky-antimicrobial-resistance-and-molecular-analysis-of-clinical-animal-and-environment-isolates-morocco
#19
Bouchra Karraouan, Nadia Ziyate, Abdelaziz Ed-Dra, Nadia Amajoud, Rachid Boutaib, Abdellah Akil, Abdellah El Allaoui, Hicham El Ossmani, Khalid Zerouali, Naima Elmdaghri, Brahim Bouchrif
No abstract text is available yet for this article.
April 30, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28455257/molecular-insights-into-the-inhibitory-mechanism-of-rifamycin-sv-against-%C3%AE-2-microglobulin-aggregation-a-molecular-dynamics-simulation-study
#20
Simranjeet Singh Narang, Suniba Shuaib, Bhupesh Goyal
Dialysis-related amyloidosis (DRA) is a severe condition characterized by the accumulation of amyloidogenic β2-microglobulin (β2m) protein around skeletal joints and bones. The small molecules that modulate β2m aggregation have been identified in vitro, however, the underlying inhibitory mechanism remain elusive. In the present study, molecular docking and molecular dynamics (MD) simulations were performed to elucidate the inhibitory mechanism of an antibiotic, rifamycin SV (C1) reported for its in vitro anti-aggregation activity against β2m...
September 2017: International Journal of Biological Macromolecules
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