With or without semantic mediation: retrieval of lexical representations in sign production.

How are lexical representations retrieved during sign production? Similar to spoken languages, lexical representation in sign language must be accessed through semantics when naming pictures. However, it remains an open issue whether lexical representations in sign language can be accessed via routes that bypass semantics when retrieval is elicited by written words. Here we address this issue by exploring under which circumstances sign retrieval is sensitive to semantic context.

Prevalence of antimicrobial use in US acute care hospitals, May-September 2011.

Importance: Inappropriate antimicrobial drug use is associated with adverse events in hospitalized patients and contributes to the emergence and spread of resistant pathogens. Targeting effective interventions to improve antimicrobial use in the acute care setting requires understanding hospital prescribing practices.

Objective: To determine the prevalence of and describe the rationale for antimicrobial use in participating hospitals.

RBP-Jκ-dependent Notch signaling is required for murine articular cartilage and joint maintenance.

Objective: Osteoarthritis (OA) is a degenerative disease resulting in severe joint cartilage destruction and disability. While the mechanisms underlying the development and progression of OA are poorly understood, gene mutations have been identified within cartilage-related signaling molecules, implicating impaired cell signaling in OA and joint disease. The Notch pathway has recently been identified as a crucial regulator of growth plate cartilage development, and components are expressed in joint tissue.

Advocacy Recruiting for Huntington's Disease Clinical Trials.

Recent clinical trials for Huntington's disease (HD) have been slowed by the inability to complete enrollment in a timely manner. We report a successful advocacy-based recruiting approach at Evergreen Neuroscience Institute, a new Huntington Study Group (HSG) investigative site that lacked an HD patient base. By partnering with community advocates and utilizing web-based advocacy group alerts, Evergreen ranked third of 27 North American sites conducting the Study of ACR16 for the Treatment of Huntington's disease (HART) for number of participants, and first for rate of recruitment -- all while decreasing the time and financial resources needed for site-based recruiting.

Cutting edge: CD4+ T cell-derived IL-2 is essential for help-dependent primary CD8+ T cell responses.

CD4(+) T cell help is essential for primary CD8(+) T cell responses to noninflammatory Ags. IL-2 is one of the principal cytokines made by naive CD4(+) T cells, and we show in this study that it is an essential component of help. Adoptively transferred naive CD4(+) TCR-transgenic OT-II cells supported endogenous primary CD8(+) T cell responses, but IL-2-deficient OT-II cells were unable to provide help, although they responded to Ag in vivo and up-regulated CD40 ligand in vitro.

Suppression of androgen receptor transactivation and prostate cancer cell growth by heterogeneous nuclear ribonucleoprotein A1 via interaction with androgen receptor coregulator ARA54.

The androgen receptor (AR) requires coregulators for its optimal transactivation. Whether AR coregulators also need interacting proteins to modulate their function remains unclear. Here we describe heterogeneous nuclear ribonucleoprotein (hnRNP) A1 as an associated negative modulator for the AR coregulator ARA54.

Process-oriented administration of the picture arrangement test does not affect the quantitative outcome.

Extracting the maximum amount of qualitative information of cognitive functioning from tests is one of the major goals, of the process approach to neuropsychological assessment. This study examined whether there is a difference in score in the Picture Arrangement (PA) test of the Wechsler Adult Intelligence Scale-Revised for participants who completed the standardized versus a process-oriented administration (i.e.

The incidence of pediatric cardiomyopathy in two regions of the United States.

Background: Population-based data on the incidence of pediatric cardiomyopathy are rare because of the lack of large, prospective studies.

Methods: Since 1996 the Pediatric Cardiomyopathy Registry sponsored by the National Heart, Lung, and Blood Institute has collected data on all children with newly diagnosed cardiomyopathy in New England and the Central Southwest region (Texas, Oklahoma, and Arkansas) of the United States. We report on all children in these regions who received this diagnosis between 1996 and 1999.

Doxorubicin administration by continuous infusion is not cardioprotective: the Dana-Farber 91-01 Acute Lymphoblastic Leukemia protocol.

Purpose: Acute doxorubicin-induced cardiotoxicity can be prevented in adults by continuous infusion of the drug, but mechanisms of cardiotoxicity are different in children. We compared cardiac outcomes in children receiving bolus or continuous infusion of doxorubicin.

Patients And Methods: In a randomized study, children with high-risk acute lymphoblastic leukemia received doxorubicin 360 mg/m(2) in 30-mg/m(2) doses every 3 weeks either by bolus (within 1 hour, n = 57) or by continuous infusion (over 48 hours, n = 64).

Comparison of cefdinir and penicillin V in the treatment of pediatric streptococcal tonsillopharyngitis.

Background: Group A beta-hemolytic streptococcal (GABHS) tonsillopharyngitis continues to be a prevalent pediatric infectious disease that requires prompt treatment for relief of symptoms and to prevent complications.

Objective: To compare the efficacy/tolerability of cefdinir and penicillin V in the treatment of pediatric GABHS tonsillopharyngitis as demonstrated in two clinical trials of similar design.

Design: Multicenter, randomized, investigator-blinded trials.

Evaluating the need, timing and best choice of antibiotic therapy for acute otitis media and tonsillopharyngitis infections in children.

Deciding whether an antibiotic is necessary, when to begin therapy and selecting an optimal drug is an everyday challenge in clinical practice. In vitro susceptibility testing which determines the minimum concentration necessary for a particular antibiotic to inhibit or kill most strains of a bacterial species and pharmacodynamic modeling are useful but have limitations. The need for antibiotic therapy for acute otitis media (AOM) has been recently questioned.