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https://www.readbyqxmd.com/read/28724068/genome-wide-association-mapping-of-qualitatively-inherited-traits-in-a-germplasm-collection
#1
Nonoy B Bandillo, Aaron J Lorenz, George L Graef, Diego Jarquin, David L Hyten, Randall L Nelson, James E Specht
Genome-wide association (GWA) has been used as a tool for dissecting the genetic architecture of quantitatively inherited traits. We demonstrate here that GWA can also be highly useful for detecting many major genes governing categorically defined phenotype variants that exist for qualitatively inherited traits in a germplasm collection. Genome-wide association mapping was applied to categorical phenotypic data available for 10 descriptive traits in a collection of ∼13,000 soybean [ (L.) Merr.] accessions that had been genotyped with a 50,000 single nucleotide polymorphism (SNP) chip...
July 2017: Plant Genome
https://www.readbyqxmd.com/read/28723914/safety-and-pharmacodynamics-of-dalazatide-a-kv1-3-channel-inhibitor-in-the-treatment-of-plaque-psoriasis-a-randomized-phase-1b-trial
#2
Eric J Tarcha, Chelsea M Olsen, Peter Probst, David Peckham, Ernesto J Muñoz-Elías, James G Kruger, Shawn P Iadonato
BACKGROUND: Dalazatide is a specific inhibitor of the Kv1.3 potassium channel. The expression and function of Kv1.3 channels are required for the function of chronically activated memory T cells, which have been shown to be key mediators of autoimmune diseases, including psoriasis. OBJECTIVE: The primary objective was to evaluate the safety of repeat doses of dalazatide in adult patients with mild-to-moderate plaque psoriasis. Secondary objectives were to evaluate clinical proof of concept and the effects of dalazatide on mediators of inflammation in the blood and on chronically activated memory T cell populations...
2017: PloS One
https://www.readbyqxmd.com/read/28722560/peering-beyond-the-walls-of-healthcare-institutions-a-catalyst-for-innovation
#3
James K Elrod, John L Fortenberry
BACKGROUND: Healthcare providers operate in a unique industry characterized by pursuit of perhaps the most noble of missions: the delivery of vital health and medical services to those in need. Distinguishing features abound, differentiating the healthcare industry from others, with such facets having the potential to compel those serving in health and medical establishments to focus exclusively on their selected industry. But directing attention solely within can result in missed opportunities, especially regarding innovation...
July 11, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28722550/the-hub-and-spoke-organization-design-an-avenue-for-serving-patients-well
#4
James K Elrod, John L Fortenberry
BACKGROUND: The healthcare industry is characterized by intensive, never-ending change occurring on a multitude of fronts. Success in such tumultuous environments requires healthcare providers to be proficient in myriad areas, including the manner in which they organize and deliver services. Less efficient designs drain precious resources and hamper efforts to deliver the best care possible to patients, making it imperative that optimal pathways are identified and pursued. One particular avenue that offers great potential for serving patients efficiently and effectively is known as the hub-and-spoke organization design...
July 11, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28721122/hypoxic-training-increases-maximal-oxygen-consumption-in-thoroughbred-horses-well-trained-in-normoxia
#5
Hajime Ohmura, Kazutaka Mukai, Yuji Takahashi, Toshiyuki Takahashi, James H Jones
Hypoxic training is effective for improving athletic performance in humans. It increases maximal oxygen consumption (V̇O2max) more than normoxic training in untrained horses. However, the effects of hypoxic training on well-trained horses are unclear. We measured the effects of hypoxic training on V̇O2max of 5 well-trained horses in which V̇O2max had not increased over 3 consecutive weeks of supramaximal treadmill training in normoxia which was performed twice a week. The horses trained with hypoxia (15% inspired O2) twice a week...
2017: Journal of Equine Science
https://www.readbyqxmd.com/read/28720208/treatment-of-uremic-pruritus-a-systematic-review
#6
Elizabeth Simonsen, Paul Komenda, Blake Lerner, Nicole Askin, Clara Bohm, James Shaw, Navdeep Tangri, Claudio Rigatto
BACKGROUND: Uremic pruritus is a common and burdensome symptom afflicting patients with advanced chronic kidney disease (CKD) and has been declared a priority for CKD research by patients. The optimal treatments for uremic pruritus are not well defined. STUDY DESIGN: Systematic review. SETTING & POPULATION: Adult patients with advanced CKD (stage ≥ 3) or receiving any form of dialysis. SELECTION CRITERIA FOR STUDIES: PubMed, CINAHL, Embase, International Pharmaceutical Abstracts, Scopus, Cochrane Library, and ClinicalTrials...
July 15, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28720044/ulnar-artery-aneurysm-in-a-6-month-old-a-case-report
#7
Clifton G Meals, George B Carey, James P Higgins, Benjamin Chang
BACKGROUND: Pediatric ulnar aneurysms are rare and, unlike their adult counterparts, cannot be explained by repetitive trauma to the palm. A small number of case reports describe diagnostic difficulty with these lesions and different treatments. METHODS: We present the case of a 6-month-old with an ulnar artery aneurysm of unknown cause. The diagnosis was supported with magnetic resonance imaging, and the lesion was resected. RESULTS: Because the hand remained well perfused, the ulnar artery was not reconstructed...
March 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28719780/venous-thromboembolic-prophylaxis-in-foot-and-ankle-surgery-a-review-of-current-literature-and-practice
#8
Martin H S Weisman, James R Holmes, Todd A Irwin, Paul G Talusan
Venous thromboembolism (VTE) is a well-known and feared complication following foot and ankle surgery, as it is a source of morbidity and mortality in the perioperative phase. The most recent CHEST guidelines recommended against the use of chemoprophylaxis and the majority of the literature has found a low incidence of VTE following foot and ankle surgery. Some authors prefer screening patients for risk factors and recommend the use of chemoprophylaxis on a case-by-case basis. Interestingly, studies that found high incidence of VTE were unable to determine a statistically significant difference between the prophylaxis and placebo groups...
August 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28719615/a-human-tissue-based-functional-assay-platform-to-evaluate-the-immune-function-impact-of-small-molecule-inhibitors-that-target-the-immune-system
#9
Cristina St Pierre, Jane Guo, John D Shin, Laura W Engstrom, Hyun-Hee Lee, Alan Herbert, Laura Surdi, James Baker, Michael Salmon, Sanjiv Shah, J Michael Ellis, Hani Houshyar, Michael A Crackower, Melanie A Kleinschek, Dallas C Jones, Alexandra Hicks, Dennis M Zaller, Stephen E Alves, Ravisankar A Ramadas
While the immune system is essential for the maintenance of the homeostasis, health and survival of humans, aberrant immune responses can lead to chronic inflammatory and autoimmune disorders. Pharmacological modulation of drug targets in the immune system to ameliorate disease also carry a risk of immunosuppression that could lead to adverse outcomes. Therefore, it is important to understand the 'immune fingerprint' of novel therapeutics as they relate to current and, clinically used immunological therapies to better understand their potential therapeutic benefit as well as immunosuppressive ability that might lead to adverse events such as infection risks and cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28719565/burnout-in-orthopaedic-surgeons-a-challenge-for-leaders-learners-and-colleagues-aoa-critical-issues
#10
S Elizabeth Ames, James B Cowan, Keith Kenter, Sanford Emery, David Halsey
Burnout, depression, suicidal ideation, and dissatisfaction with work-life balance have been reported in all medical specialties and at all stages of medical education and practice experience. Burnout consists of progressive emotional, attitudinal, and physical exhaustion. Physicians with burnout may treat patients as objects and feel emotionally depleted. Burnout is characterized by a loss of enthusiasm for work (emotional exhaustion), feelings of cynicism (depersonalization), and a low sense of personal accomplishment...
July 19, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28719442/social-media-and-pathology-where-are-we-now-and-why-does-it-matter
#11
James Isom, Meggen Walsh, Jerad M Gardner
Social media has exploded in popularity in recent years. It is a powerful new tool for networking, collaborating, and for the communication and evolution of ideas. It has been increasingly used for business purposes and is now being embraced by physicians including pathologists. Pathology professional organizations and even peer-reviewed pathology journals are now beginning to use social media, as well. There are multiple social media platforms, including Twitter, Facebook, Instagram, LinkedIn, and others. Each platform has different audiences and different ways to share content and interact with other users...
July 17, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28718891/mk-reduces-inhaled-chlorine-triggered-ahr-and-airway-inflammation-in-the-mouse
#12
Yoichiro Hamamoto, Satoshi Ano, Benoit Allard, Michael O'Sullivan, Toby K McGovern, James G Martin
BACKGROUND AND PURPOSE: Cysteinyl leukotrienes (CysLTs) are pro-inflammatory lipid mediators that exacerbate disease state in several asthma phenotypes including asthma induced by allergen, virus and exercise. However, the role of CysLTs in irritant-induced airway disease is not well characterized. The purpose of the current study was to investigate the effect of montelukast (MK), a CysLT1R antagonist, on parameters of irritant-induced asthma (IIA) induced by inhalation of chlorine (Cl2 ) in the mouse...
July 18, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28718689/orbital-diffuse-large-b-cell-lymphoma-with-combined-variable-immunodeficiency
#13
Vishal S Parikh, Deepa Jagadeesh, James M Fernandez, Eric D Hsi, Arun D Singh
Common variable immunodeficiency (CVID) is a primary immunodeficiency manifesting as a reduction in the level of total immunoglobulin (Ig) G, a reduction in the level of either IgA or IgM, poor response to polysaccharide vaccine, and usually frequent infections. The association of CVID with an increased risk of malignancy, specifically lymphoma, is well known. A 63-year-old female with a past medical history significant for CVID presented with a 1-month history of dull, left eye pain with proptosis, hypoglobus, and left upper lid fullness without a discrete palpable mass...
July 18, 2017: Orbit
https://www.readbyqxmd.com/read/28718640/smi2-h2o-n-reductions-of-electron-rich-enamines-by-concerted-proton-coupled-electron-transfer
#14
Scott S Kolmar, James M Mayer
Samarium diiodide in the presence of water and THF (SmI2(H2O)n) has in recent years become a versatile and useful reagent, mainly for reducing carbonyl-type substrates. This work reports the reduction of several enamines by SmI2(H2O)n. Mechanistic experiments implicate a concerted proton-coupled electron transfer (PCET) pathway, based on various evidence against initial outer-sphere electron transfer, proton transfer or substrate coordination. A thermochemical analysis indicates that the C-H bond formed in the rate determining step has a bond dissociation free energy (BDFE) of ~32 kcal mol-1...
July 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28718619/radial-dopant-placement-for-tuning-plasmonic-properties-in-metal-oxide-nanocrystals
#15
Brandon M Crockett, Adam W Jansons, Kristopher M Koskela, Darren W Johnson, James E Hutchison
Doped metal oxide nanocrystals that exhibit tunable localized surface plasmon resonances (LSPRs) represent an intriguing class of nanomaterials that show promise for a variety of applications from spectroscopy to sensing. LSPRs arise in these materials through the introduction of aliovalent dopants and lattice oxygen vacancies. Tuning the LSPR shape and energy is generally accomplished through controlling the concentration or identity of dopants in a nanocrystal, but the lack of finer synthetic control leaves several fundamental questions unanswered regarding the effects of radial dopant placement, size, and nanocrystalline architecture on the LSPR energy and damping...
July 18, 2017: ACS Nano
https://www.readbyqxmd.com/read/28718514/aldehyde-dehydrogenase-1-a1-regulates-energy-metabolism-in-adipocytes-from-different-species
#16
Kefeng Yang, Christopher Adin, Qiwen Shen, Ly James Lee, Lianbo Yu, Paolo Fadda, Arpad Samogyi, Kathleen Ham, Lu Xu, Chen Gilor, Ouliana Ziouzenkova
BACKGROUND: Survival and longevity of xenotransplants depend on immune function and ability to integrate energy metabolism between cells from different species. However, mechanisms for interspecies cross talk in energy metabolism are not well understood. White adipose tissue stores energy and is capable of mobilization and dissipation of energy as heat (thermogenesis) by adipocytes expressing uncoupling protein 1 (Ucp1). Both pathways are under the control of vitamin A metabolizing enzymes...
July 17, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28717876/structural-and-ultrastructural-changes-to-type-i-spiral-ganglion-neurons-and-schwann-cells-in-the-deafened-guinea-pig-cochlea
#17
Andrew K Wise, Remy Pujol, Thomas G Landry, James B Fallon, Robert K Shepherd
Sensorineural hearing loss is commonly caused by damage to cochlear sensory hair cells. Coinciding with hair cell degeneration, the peripheral fibres of type I spiral ganglion neurons (SGNs) that normally form synaptic connections with the inner hair cell gradually degenerate. We examined the time course of these degenerative changes in type I SGNs and their satellite Schwann cells at the ultrastructural level in guinea pigs at 2, 6, and 12 weeks following aminoglycoside-induced hearing loss. Degeneration of the peripheral fibres occurred prior to the degeneration of the type I SGN soma and was characterised by shrinkage of the fibre followed by retraction of the axoplasm, often leaving a normal myelin lumen devoid of axoplasmic content...
July 17, 2017: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/28717401/novel-therapeutic-strategies-in-the-treatment-of-triple-negative-breast-cancer
#18
REVIEW
Karima Oualla, Heba M El-Zawahry, Banu Arun, James M Reuben, Wendy A Woodward, Heba Gamal El-Din, Bora Lim, Nawfel Mellas, Naoto T Ueno, Tamer M Fouad
Triple-negative breast cancer (TNBC) is a heterogeneous subtype of breast cancer that is defined by negative estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2) status. Treating patients with TNBC remains clinically challenging, as patients are not candidates for endocrine or HER2-directed therapy. As a result, chemotherapy with traditional agents such as anthracyclines and taxanes remains the only available option with moderate success. Recent discoveries have revealed that TNBC is a heterogeneous disease at the clinical, histological and molecular levels...
July 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/28717241/sca-1-identifies-a-trophoblast-population-with-multipotent-potential-in-the-mid-gestation-mouse-placenta
#19
Bryony V Natale, Christina Schweitzer, Martha Hughes, Maria A Globisch, Ramie Kotadia, Emilie Tremblay, Priscilla Vu, James C Cross, David R C Natale
Trophoblast stem (TS) cells in the mouse derive from the polar trophectoderm of the blastocyst and persist through early gestation (to E8.5) to support placental development. Further development and growth is proposed to rely on layer-restricted progenitor cells. Stem cell antigen (Sca) -1 is a member of the Ly6 gene family and a known marker of stem cells in both hematopoietic and non-hematopoietic mouse tissues. Having identified that Sca-1 mRNA was highly expressed in mouse TS cells in culture, we found that it was also expressed in a subset of trophoblast within the chorion and labyrinth layer of the mouse placenta...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716800/relationship-between-vascular-resistance-and-sympathetic-nerve-fiber-density-in-arterial-vessels-in-children-with-sleep-disordered-breathing
#20
Anna Kontos, Kurt Lushington, James Martin, Quenten Schwarz, Ryan Green, David Wabnitz, Xiangjun Xu, Elke M Sokoya, Scott Willoughby, Mathias Baumert, Antonio Ferrante, Melissa La Forgia, Declan Kennedy
BACKGROUND: Sleep disordered breathing in children is associated with increased blood flow velocity and sympathetic overactivity. Sympathetic overactivity results in peripheral vasoconstriction and reduced systemic vascular compliance, which increases blood flow velocity during systole. Augmented blood flow velocity is recognized to promote vascular remodeling. Importantly, increased vascular sympathetic nerve fiber density and innervation in early life plays a key role in the development of early-onset hypertension in animal models...
July 17, 2017: Journal of the American Heart Association
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