Re-visiting autoimmunity to sodium-iodide symporter and pendrin in thyroid disease.

Objective: Iodide transport across thyrocytes constitutes a critical step for thyroid hormone biosynthesis, mediated mainly by the basolateral sodium-iodide-symporter (NIS (SLC5A5)) and the apical anion exchanger pendrin (PDS (SLC26A4)). Both transmembrane proteins have been described as autoantigens in thyroid disease, yet the reports on autoantibody (aAb) prevalence and diagnostic usefulness are conflicting. Reasons for the inconclusive findings may be small study groups and principle differences in the technologies used.

Envisioning Transformation in VA Mental Health Services Through Collaborative Site Visits.

This column reviews the unique contributions of multiple partners in establishing a standardized site visit process to promote quality improvement in mental health care at the Veterans Health Administration. Working as a team, leaders in policy and operations, staff of research centers, and regional- and facility-level mental health leaders developed a standardized protocol for evaluating mental health services at each site and using the data to help implement policy goals. The authors discuss the challenges experienced and lessons learned in this systemwide process and how this information can be part of a framework for improving mental health services on a national level.

Climate change can alter predator-prey dynamics and population viability of prey.

For many organisms, climate change can directly drive population declines, but it is less clear how such variation may influence populations indirectly through modified biotic interactions. For instance, how will climate change alter complex, multi-species relationships that are modulated by climatic variation and that underlie ecosystem-level processes? Caribou (Rangifer tarandus), a keystone species in Newfoundland, Canada, provides a useful model for unravelling potential and complex long-term implications of climate change on biotic interactions and population change. We measured cause-specific caribou calf predation (1990-2013) in Newfoundland relative to seasonal weather patterns.

A cardiac patch from aligned microvessel and cardiomyocyte patches.

Cardiac tissue engineering aims to produce replacement tissue patches in the lab to replace or treat infarcted myocardium. However, current patches lack preformed microvascularization and are therefore limited in thickness and force production. In this study, we sought to assess whether a bilayer patch composed of a layer made from human induced pluripotent stem cell-derived cardiomyocytes and a microvessel layer composed of self-assembled human blood outgrowth endothelial cells and pericytes was capable of engrafting on the epicardial surface of a nude rat infarct model and becoming perfused by the host 4 weeks after acute implantation.

Loss of connectivity among island-dwelling Peary caribou following sea ice decline.

Global warming threatens to reduce population connectivity for terrestrial wildlife through significant and rapid changes to sea ice. Using genetic fingerprinting, we contrasted extant connectivity in island-dwelling Peary caribou in northern Canada with continental-migratory caribou. We next examined if sea-ice contractions in the last decades modulated population connectivity and explored the possible impact of future climate change on long-term connectivity among island caribou.

Inosculation and perfusion of pre-vascularized tissue patches containing aligned human microvessels after myocardial infarction.

A major goal of tissue engineering is the creation of pre-vascularized tissues that have a high density of organized microvessels that can be rapidly perfused following implantation. This is especially critical for highly metabolic tissues like myocardium, where a thick myocardial engineered tissue would require rapid perfusion within the first several days to survive transplantation. In the present work, tissue patches containing human microvessels that were either randomly oriented or aligned were placed acutely on rat hearts post-infarction and for each case it was determined whether rapid inosculation could occur and perfusion of the patch could be maintained for 6 days in an infarct environment.

Robust Phonon-Plasmon Coupling in Quasifreestanding Graphene on Silicon Carbide.

Using inelastic electron scattering in combination with dielectric theory simulations on differently prepared graphene layers on silicon carbide, we demonstrate that the coupling between the 2D plasmon of graphene and the surface optical phonon of the substrate cannot be quenched by modification of the interface via intercalation. The intercalation rather provides additional modes like, e.g.

Potassium-Binding Agents to Facilitate Renin-Angiotensin-Aldosterone System Inhibitor Therapy.

Objective: To evaluate safety and efficacy data for potassium-binding resins in renin-angiotensin-aldosterone system (RAAS)-associated hyperkalemia.

Data Sources: A search of MEDLINE (EBSCOhost; 1946 to February 2016) was conducted using the terms hyperkalemia, rennin-angiotensin-aldosterone system, angiotensin-converting enzyme inhibitor, angiotensin receptor blocker, aldosterone antagonists, resin, and binder Results were limited to human trials in English language journals. References of identified articles were reviewed to identify other relevant articles.

Tissue Contraction Force Microscopy for Optimization of Engineered Cardiac Tissue.

We developed a high-throughput screening assay that allows for relative comparison of the twitch force of millimeter-scale gel-based cardiac tissues. This assay is based on principles taken from traction force microscopy and uses fluorescent microspheres embedded in a soft polydimethylsiloxane (PDMS) substrate. A gel-forming cell suspension is simply pipetted onto the PDMS to form hemispherical cardiac tissue samples.

Phase-dependent climate-predator interactions explain three decades of variation in neonatal caribou survival.

Climate can have direct and indirect effects on population dynamics via changes in resource competition or predation risk, but this influence may be modulated by density- or phase-dependent processes. We hypothesized that for ungulates, climatic conditions close to parturition have a greater influence on the predation risk of neonates during population declines, when females are already under nutritional stress triggered by food limitation. We examined the presence of phase-dependent climate-predator (PDCP) interactions on neonatal ungulate survival by comparing spatial and temporal fluctuations in climatic conditions, cause-specific mortality and per capita resource limitation.

Time to opioid administration after implementation of an intranasal fentanyl protocol.

Background: Prompt and effective analgesia is a mainstay of emergency department (ED) medicine; however, it is often delayed in times of overcrowding and by the need to establish intravenous (IV) access. Thus, noninvasive analgesic administration by means of the intranasal route could potentially reduce time to analgesic administration by eliminating IV line insertion.

Methods: This retrospective study evaluated time from physician entry into patient's room to opioid administration after implementation of an intranasal fentanyl protocol.

Predicting local and non-local effects of resources on animal space use using a mechanistic step selection model.

Predicting space use patterns of animals from their interactions with the environment is fundamental for understanding the effect of habitat changes on ecosystem functioning. Recent attempts to address this problem have sought to unify resource selection analysis, where animal space use is derived from available habitat quality, and mechanistic movement models, where detailed movement processes of an animal are used to predict its emergent utilization distribution. Such models bias the animal's movement towards patches that are easily available and resource-rich, and the result is a predicted probability density at a given position being a function of the habitat quality at that position.

Phylogeography and post-glacial recolonization in wolverines (Gulo gulo) from across their circumpolar distribution.

Interglacial-glacial cycles of the Quaternary are widely recognized in shaping phylogeographic structure. Patterns from cold adapted species can be especially informative - in particular, uncovering additional glacial refugia, identifying likely recolonization patterns, and increasing our understanding of species' responses to climate change. We investigated phylogenetic structure of the wolverine, a wide-ranging cold adapted carnivore, using a 318 bp of the mitochondrial DNA control region for 983 wolverines (n=209 this study, n=774 from GenBank) from across their full Holarctic distribution.

Directed Fusion of Mesenchymal Stem Cells with Cardiomyocytes via VSV-G Facilitates Stem Cell Programming.

Mesenchymal stem cells (MSCs) spontaneously fuse with somatic cells in vivo, albeit rarely, and the fusion products are capable of tissue-specific function (mature trait) or proliferation (immature trait), depending on the microenvironment. That stem cells can be programmed, or somatic cells reprogrammed, in this fashion suggests that stem cell fusion holds promise as a therapeutic approach for the repair of damaged tissues, especially tissues not readily capable of functional regeneration, such as the myocardium. In an attempt to increase the frequency of stem cell fusion and, in so doing, increase the potential for cardiac tissue repair, we expressed the fusogen of the vesicular stomatitis virus (VSV-G) in human MSCs.

Differential relationships between continuity of care practices, engagement in continuing care, and abstinence among subgroups of patients with substance use and psychiatric disorders.

Objective: We examined whether patient subgroups with differing substance use disorders (SUDs) and psychiatric severity levels varied on engagement in continuing care and abstinence outcomes, the association of continuity of care practices to engagement, and the association of engagement to abstinence.

Method: Staff in 28 Veterans Affairs SUD treatment programs used the Addiction Severity Index to assess 865 (98% male) patients' alcohol, other drug, and psychiatric problems at treatment entry. At discharge, staff supplied data on patients' treatment, motivation, and continuity of care practices.

HREELS investigation of the surfaces of nanocrystalline diamond films oxidized by different processes.

This article reports on the use of high-resolution electron energy loss spectroscopy (HREELS) for the investigation of as-grown (hydrogen-terminated) and oxidized nanocrystalline diamond films (NCD) using chemical, physical, and electrochemical approaches. The results indicate that the nature and number of oxygen-related chemical groups generated on the NCD surface depend strongly on the oxidation process. A high concentration of C-O functions has been obtained on the NCD surface oxidized by rf (radio frequency) oxygen plasma, whereas the highest C═O/C-O ratio has been achieved by electrochemical oxidation.

VA nursing home residents with substance use disorders: Mental health comorbidities, functioning, and problem behaviors.

Objectives: This research addresses whether residents with substance use disorders (SUDs) in VA nursing homes (VANHs) are distinctive in terms of their demographic characteristics, medical and mental health comorbidities, functioning, and problem behaviors.

Methods: Residents over age 55 admitted to VANHs (n = 27,002) were identified in VA administrative files, and SUD and non-SUD residents were compared.

Results: Compared with other residents, the residents with SUDs (18% of admissions over age 55) were more likely to be younger, male, African-American, unmarried, have low income and a tobacco use disorder.

Recent changes in the prevalence of psychiatric disorders among VA nursing home residents.

Objective: This study identified recent changes in the prevalence of psychiatric disorders among Department of Veterans Affairs (VA) nursing home residents.

Methods: Psychiatric diagnoses in administrative databases were summarized for nursing home residents in 1998, 2002, and 2006. Census prevalence rates were compared with findings from earlier VA nursing home surveys.

Effect of annealing on the properties of indium-tin-oxynitride films as ohmic contacts for gan-based optoelectronic devices.

Indium-tin-oxynitride (ITON) films have been fabricated by rf sputtering from an indium-tin-oxide target in nitrogen plasma. The influence of postdeposition annealing up to 800 degrees C is analyzed by electrical, optical, and surface characterization of the films in comparison to indium-tin-oxide (ITO) films fabricated in argon plasma. High-temperature annealing resulted in ITO(N) films with similar carrier concentrations.

Sliding friction of nanocomposite WC1-x/C coatings: transfer film and its influence on tribology.

The transfer film on steel spheres formed in reciprocating sliding against nanocomposite coatings based on nanocrystalline WC1-x in amorphous carbon matrix is characterized and correlated with the tribological properties measured by a precision microtribometer. With the presence of transfer film, a coefficient of friction approximately 0.13 and a depth wear rate approximately 0.

Treatment staff's continuity of care practices, patients' engagement in continuing care, and abstinence following outpatient substance-use disorder treatment.

Objective: Although speculation suggests that continuity of care predicts abstinence following substance-use disorder (SUD) treatment, models examining staff's continuity of care practices and engagement in continuing care and whether they mediate or moderate the association between patient and treatment factors and abstinence are lacking. In this study, we aimed to model abstinence using combinations of independent pretreatment and treatment factors, discharge continuity of care practices, and posttreatment engagement and to identify mediators or moderators of relationships between these factors and abstinence.

Method: Staff in 18 Department of Veterans Affairs (VA) outpatient SUD programs used the Addiction Severity Index to assess 429 nonabstinent patients' alcohol and drug problems at treatment entry.

Deconvolution method for two-dimensional spatial-response mapping of lithographic infrared antennas.

The spatial impulse response of antenna-coupled infrared detectors with dimensions comparable with the wavelength is obtained from a two-dimensional scan of a tightly focused CO(2)-laser beam. The method uses an experimental setup with submicrometer resolution and an iterative deconvolution algorithm. The measured spatial response is compared with numerically computed near-field distributions of a dipole antenna, with good agreement.