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https://www.readbyqxmd.com/read/27914312/today-is-tomorrow-s-yesterday-children-s-acquisition-of-deictic-time-words
#1
Katharine A Tillman, Tyler Marghetis, David Barner, Mahesh Srinivasan
Deictic time words like "yesterday" and "tomorrow" pose a challenge to children not only because they are abstract, and label periods in time, but also because their denotations vary according to the time at which they are uttered: Monday's "tomorrow" is different than Thursday's. Although children produce these words as early as age 2 or 3, they do not use them in adult-like ways for several subsequent years. Here, we explored whether children have partial but systematic meanings for these words during the long delay before adult-like usage...
November 30, 2016: Cognitive Psychology
https://www.readbyqxmd.com/read/27914293/diethylcarbamazine-attenuates-lps-induced-acute-lung-injury-in-mice-by-apoptosis-of-inflammatory-cells
#2
Ingrid Tavares Fragoso, Edlene Lima Ribeiro, Fabiana Oliveira Dos Santos Gomes, Mariana Aragão Matos Donato, Amanda Karolina Soares Silva, Amanda Costa O de Oliveira, Shyrlene Meiry da Rocha Araújo, Karla Patrícia Sousa Barbosa, Laise Aline Martins Santos, Christina Alves Peixoto
BACKGROUND: Acute lung injury (ALI) is characterized by extensive neutrophil infiltration, and apoptosis delay considered part of the pathogenesis of the condition. Despite great advances in treatment strategies, few effective therapies are known for ALI. Diethylcarbamazine (DEC) is used against lymphatic filariasis, a number of studies have described its anti-inflammatory activities and pro-apoptotic effect. These properties have been associated with nuclear factor kappa-B inactivation...
September 24, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27914270/surface-mediated-transfection-of-a-pdna-vector-encoding-short-hairpin-rna-to-downregulate-tgf-%C3%AE-1-expression-for-the-prevention-of-in-stent-restenosis
#3
He Zhang, Ke-Feng Ren, Hao Chang, Jin-Lei Wang, Jian Ji
In-stent restenosis is one of the most serious modes of failure of cardiovascular stent implant. Although drug-eluting stents have been proven to reduce in-stent restenosis, the nonspecific inhibitory effects of anti-proliferative drugs, such as rapamycin, result in delayed re-endothelialization and fatal late stent thrombosis. Although many studies have focused on promoting rapid re-endothelialization, a feasible method of reducing excessive extracellular matrix (ECM) production and cell proliferation might provide a promising way to efficiently inhibit the restenosis in vivo...
November 24, 2016: Biomaterials
https://www.readbyqxmd.com/read/27914262/a-new-switching-control-for-finite-time-synchronization-of-memristor-based-recurrent-neural-networks
#4
Jie Gao, Peiyong Zhu, Ahmed Alsaedi, Fuad E Alsaadi, Tasawar Hayat
In this paper, finite-time synchronization (FTS) of memristor-based recurrent neural networks (MNNs) with time-varying delays is investigated by designing a new switching controller. First, by using the differential inclusions theory and set-valued maps, sufficient conditions to ensure FTS of MNNs are obtained under the two cases of 0<α<1 and α=0, and it is derived that α=0 is the critical value of 0<α<1. Next, it is discussed deeply on the relation between the parameter α and the synchronization time...
November 4, 2016: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/27914234/food-gastrointestinal-ph-and-models-of-oral-drug-absorption
#5
REVIEW
Ahmad Y Abuhelwa, Desmond B Williams, Richard N Upton, David J R Foster
This article reviews the major physiological and physicochemical principles of the effect of food and gastrointestinal (GI) pH on the absorption and bioavailability of oral drugs, and the various absorption models that are used to describe/predict oral drug absorption. The rate and extent of oral drug absorption is determined by a complex interaction between a drug's physicochemical properties, GI physiologic factors, and the nature of the formulation administered. GI pH is an important factor that can markedly affect oral drug absorption and bioavailability as it may have significant influence on drug dissolution & solubility, drug release, drug stability, and intestinal permeability...
November 30, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27914160/infectious-postpartum-sacroiliitis-the-importance-and-difficulty-of-early-diagnosis
#6
Emídio Vale-Fernandes, Fedra Rodrigues, Carla Monteiro, Luís Carvalho
The sacroiliitis accounts for about 1.5% - 10% of all cases of septic arthritis and it is strongly associated with gynaecological infections, pelvic trauma or drug abuse (3.4% - 12.8% of cases occur during the postpartum period). Early diagnosis is difficult because the symptoms are nonspecific in pregnancy and in the postpartum period, making the delay of treatment a serious risk of irreversible damage to the joint and development of post-infectious complications. The authors describe the case of a 37-year-old puerperal woman presented to hospital, weeks after urgent caesarean section, with endometritis, post-anesthetic epidural hematoma and secondary infectious postpartum sacroiliitis...
August 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/27914102/examining-temporal-effects-on-cancer-risk-in-the-international-nuclear-workers-study-inworks
#7
Robert D Daniels, Stephen J Bertke, David B Richardson, Elisabeth Cardis, Michael Gillies, Jacqueline A O'Hagan, Richard Haylock, Dominique Laurier, Klervi Leuraud, Monika Moissonnier, Isabelle Thierry-Chef, Ausrele Kesminiene, Mary K Schubauer-Berigan
The paper continues the series of publications from the International Nuclear Workers Study cohort (INWORKS) that comprises 308,297 workers from France, the United Kingdom and the United States, providing 8.2 million person-years of observation from a combined follow-up period (at earliest 1944 to at latest 2005). These workers' external radiation exposures were primarily to photons, resulting in an estimated average career absorbed dose to the colon of 17.4 milligray. The association between cumulative ionizing radiation dose and cancer mortality was evaluated in general relative risk models that describe modification of the excess relative risk (ERR) per gray (Gy) by time since exposure and age at exposure...
December 3, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27914100/transient-immunological-and-clinical-effectiveness-of-treating-mice-bearing-premalignant-oral-lesions-with-pd-1-antibodies
#8
Corinne A Levingston, M Rita I Young
A carcinogen-induced premalignant oral lesion model that progresses to oral cancer was used to examine the impact of blocking PD-1 on cytokine expression and on progression of lesions to cancer. The results of this study show increased production of IL-2 and the inflammatory cytokines IL-6, IL-17 and TNF-α by spleen cells of lesion-bearing mice that were treated with PD-1 antibody for one week compared to cytokine production by spleen cells of lesion-bearing mice treated with control antibody. Production of IFN-γ increased at 3 weeks of PD-1 antibody treatment, although production of the other Th1 and inflammatory mediators declined...
December 3, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27914063/episweep-computationally-driven-reengineering-of-therapeutic-proteins-to-reduce-immunogenicity-while-maintaining-function
#9
Yoonjoo Choi, Deeptak Verma, Karl E Griswold, Chris Bailey-Kellogg
Therapeutic proteins are yielding ever more advanced and efficacious new drugs, but the biological origins of these highly effective therapeutics render them subject to immune surveillance within the patient's body. When recognized by the immune system as a foreign agent, protein drugs elicit a coordinated response that can manifest a range of clinical complications including rapid drug clearance, loss of functionality and efficacy, delayed infusion-like allergic reactions, more serious anaphylactic shock, and even induced auto-immunity...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27914027/the-role-of-guided-growth-as-it-relates-to-limb-lengthening
#10
REVIEW
Peter M Stevens
For decades, the classic indication for limb lengthening has been reserved for anisomelia that was expected to reach or exceed 5 cm at maturity. Epiphysiodesis was reserved for discrepancies in the 2-5 cm range. With the increasing sophistication of fixators, including rail, hexapod, and hybrid, complex deformities may be corrected simultaneously while moderate to extreme lengthening is achieved. More recently, iterations of telescoping intramedullary rods have further strengthened our armamentarium. Meanwhile, permanent epiphysiodesis techniques, both open and percutaneous, have yielded to more versatile and reversible tethering of one (angle) or both (length) sides of a physis...
December 2, 2016: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/27913943/the-cost-effectiveness-of-interventions-targeting-lifestyle-change-for-the-prevention-of-diabetes-in-a-swedish-primary-care-and-community-based-prevention-program
#11
Anne Neumann, Lars Lindholm, Margareta Norberg, Olaf Schoffer, Stefanie J Klug, Fredrik Norström
BACKGROUND: Policymakers need to know the cost-effectiveness of interventions to prevent type 2 diabetes (T2D). The objective of this study was to estimate the cost-effectiveness of a T2D prevention initiative targeting weight reduction, increased physical activity and healthier diet in persons in pre-diabetic states by comparing a hypothetical intervention versus no intervention in a Swedish setting. METHODS: A Markov model was used to study the cost-effectiveness of a T2D prevention program based on lifestyle change versus a control group where no prevention was applied...
December 2, 2016: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
https://www.readbyqxmd.com/read/27913820/cerebral-blood-flow-transit-time-and-apparent-diffusion-coefficient-in-moyamoya-disease-before-and-after-acetazolamide
#12
Christian Federau, Soren Christensen, Zungho Zun, Sun-Won Park, Wendy Ni, Michael Moseley, Greg Zaharchuk
INTRODUCTION: The goal of this study was to assess the changes in arterial spin labeling (ASL) cerebral blood flow (CBF) and arterial transit time (ATT), and in apparent diffusion coefficient (ADC), before and after an acetazolamide challenge in moyamoya patients, as function of arterial stenosis severity. METHODS: Pre-operative patients diagnosed with moyamoya disease who could undergo MRI at 3.0T were recruited for this study. A multi-delay pseudo-continuous ASL and a diffusion-weighted sequence were acquired before and 15 min after acetazolamide injection...
December 2, 2016: Neuroradiology
https://www.readbyqxmd.com/read/27913721/application-based-hearing-screening-in-the-elderly-population
#13
Leonid Livshitz, Reem Ghanayim, Carmi Kraus, Raymond Farah, Ella Even-Tov, Yaniv Avraham, Adi Sharabi-Nov, Peter Gilbey
OBJECTIVES: The effects of age-related hearing loss are severe. Early detection is essential for maximum benefit. However, most hearing-impaired adults delay obtaining treatment. Diagnostic hearing testing at an appropriate facility is impractical, and new methods for screening audiometry aim to provide easy access for patients and reliable outcomes. The purpose of this study was to examine the accuracy of application-based hearing screening in an elderly population. METHODS: The uHear application was downloaded to an iPad...
January 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/27913710/lessons-learned-from-35-cases-of-laryngeal-foreign-bodies-undergoing-misdiagnosis-in-pediatric-population
#14
Qingguo Chen, Hanqi Chu, Yanling Tao, Hongyan Huang, Liyan Peng
OBJECTIVES: To present 35 cases of laryngeal foreign bodies (FBs) in pediatric population undergoing misdiagnosis so as to draw on our lessons to improve early diagnosis. METHODS: A retrospective analysis over 15 years was conducted of 35 cases of laryngeal FBs undergoing misdiagnosis in children. Meanwhile, a control group, including 42 cases of laryngeal FBs without misdiagnosis in children, was set. These patients' clinical data were collected and analyzed to identify the risk factors for misdiagnosis...
December 2, 2016: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/27913591/temporal-expectations-guide-dynamic-prioritization-in-visual-working-memory-through-attenuated-alpha-oscillations
#15
Freek van Ede, Marcel Niklaus, Anna C Nobre
: While working memory is generally considered a highly dynamic mnemonic store, popular laboratory tasks employed to understand its psychological and neural mechanisms (such as change detection and continuous reproduction) often remain relatively "static", involving the retention of a set number of items throughout a shared delay interval. In the current study, we investigated visual working memory in a more dynamic setting, and assessed: 1) whether internally guided temporal expectations can dynamically and reversibly prioritize individual mnemonic items at specific times at which they are deemed most relevant and 2) the neural substrates that support such dynamic prioritization...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27913548/warm-antibody-autoimmune-hemolytic-anemia
#16
Theodosia A Kalfa
Autoimmune hemolytic anemia (AIHA) is a rare and heterogeneous disease that affects 1 to 3/100 000 patients per year. AIHA caused by warm autoantibodies (w-AIHA), ie, antibodies that react with their antigens on the red blood cell optimally at 37°C, is the most common type, comprising ∼70% to 80% of all adult cases and ∼50% of pediatric cases. About half of the w-AIHA cases are called primary because no specific etiology can be found, whereas the rest are secondary to other recognizable underlying disorders...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913519/transplantation-for-myelodysplastic-syndromes-who-when-and-which-conditioning-regimens
#17
Wael Saber, Mary M Horowitz
Allogeneic hematopoietic stem cell transplantation (HCT) is the only curative therapy for myelodysplastic syndrome (MDS). Broad application is hindered by high risks of transplant-related morbidity and mortality, especially in the older age range represented by the MDS population. However, recent advances in strategies to minimize regimen-related toxicity make HCT a viable option for many more patients. Appropriate selection of patients involves consideration of patient factors, including use of geriatric assessment tools and comorbidity scales, that predict risks of regimen-related toxicity as well as disease factors, including genetic markers, which predict survival with both non-HCT and HCT therapy...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913516/immunoregulatory-networks-in-sickle-cell-alloimmunization
#18
Karina Yazdanbakhsh
Red blood cell (RBC) transfusions are critical for treatment and prevention of complications of sickle cell disease (SCD), and most SCD patients will receive 1 or more transfusions by age 20. However, SCD alloimmunization remains a serious complication of transfusions that can lead to life-threatening acute and delayed transfusion reactions. Alloimmunization rates are higher in SCD patients most likely due to RBC antigenic differences between largely white donors vs mainly African-American recipients and frequency of transfusions...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913399/development-of-time-and-voltage-domain-mapping-v-t-mapping-to-localize-ventricular-tachycardia-channels-during-sinus-rhythm
#19
Sachin Nayyar, Pawel Kuklik, Anand N Ganesan, Thomas R Sullivan, Lauren Wilson, Glenn D Young, Prashanthan Sanders, Kurt C Roberts-Thomson
BACKGROUND: In ventricular scar, impulse spread is slow because it traverses split and zigzag channels of surviving muscle. We aimed to evaluate scar electrograms to determine their local delay (activation time) and inequality in voltage splitting (entropy), and their relationship to channels. We reasoned that unlike innocuous channels, which are often short with multiple side branches, ventricular tachycardia (VT) supporting channels have very slow impulse spread and possess low entropy because of their longer protected length and relative lack of side-branching...
December 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27913354/a-novel-elastic-force-field-to-influence-mediolateral-foot-placement-during-walking
#20
Elizabeth Nyberg, Jordan Broadway, Christian Finetto, Jesse Dean
Bipedal gait can be stabilized through mechanically-appropriate mediolateral foot placement, although this strategy is disrupted in a subset of neurologically injured individuals with balance deficits. The goal of the present work was to develop a device to influence mediolateral foot placement during treadmill walking. We created a novel force-field using a combination of passive elasticity and active control; wires in series with extension springs run parallel to the treadmill belts and can be rapidly repositioned to exert mediolateral forces on the legs of users...
December 1, 2016: IEEE Transactions on Neural Systems and Rehabilitation Engineering
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