The role and activities of the Traveller mental health liaison nurse: Findings from a multi-stakeholder evaluation.

Irish Travellers are a minority ethnic group within the Irish state with a distinct culture and set of traditions. Travellers experience mental health inequalities, high rates of mental ill health, and structural and individual barriers to mental health supports. A Traveller Mental Health Liaison Nurse (TMHLN) was introduced in a healthcare region in Ireland to provide greater mental health-related support to Travellers.

Evaluation of a Traveller Mental Health Liaison Nurse: Service User Perspectives.

Irish Travellers are a small indigenous minority group with a distinctive lifestyle and culture which sets them apart from the general population. Travellers are vulnerable to significant mental distress which is exacerbated by the social disadvantage that they experience. A Traveller Mental Health Liaison Nurse (TMHLN) was introduced in one health care region in Ireland to provide support for Travellers and increase their access to mental health services.

How hedge woody species diversity and habitat change is a function of land use history and recent management in a European agricultural landscape.

European hedged agricultural landscapes provide a range of ecosystem services and are an important component of cultural and biodiversity heritage. This paper investigates the extent of hedges, their woody species diversity (including the influence of historical versus recent hedge origin) and dynamics of change. The rationale is to contribute to an ecological basis for hedge habitat management.

Comparison of rechargeable versus battery-operated insulin pumps: temperature fluctuations.

The role of continuous subcutaneous insulin infusion (insulin pumps) has become increasingly important in diabetes management, and many different types of these systems are currently available. This exploratory study focused on the reported heating issues that lithium-ion battery-powered pumps may have during charging compared with battery-operated pumps. It was found that pump temperature increased by 6.

The Hypoglycaemia-Hyperglycaemia Minimizer System in the Management of Type 1 Diabetes.

Living with type 1 diabetes (T1D) presents many challenges in terms of daily living. Insulin users need to frequently monitor their blood glucose levels and take multiple injections per day and/or multiple boluses through an insulin infusion pump, with the consequences of failing to match the insulin dose to the body's needs resulting in hypoglycaemia and hyperglycaemia. The former can result in seizures, coma and even death; the latter can have both acute and long-term health implications.

Sensitivity of the Predictive Hypoglycemia Minimizer System to the Algorithm Aggressiveness Factor.

Background: The Predictive Hypoglycemia Minimizer System ("Hypo Minimizer"), consisting of a zone model predictive controller (the "controller") and a safety supervision module (the "safety module"), aims to mitigate hypoglycemia by preemptively modulating insulin delivery based on continuous glucose monitor (CGM) measurements. The "aggressiveness factor," a pivotal variable in the system, governs the speed and magnitude of the controller's insulin dosing characteristics in response to changes in CGM levels.

Methods: Twelve adults with type 1 diabetes were studied in closed-loop in a clinical research center for approximately 24 hours.

A practical approach to interpreting lower extremity noninvasive physiologic studies.

Peripheral arterial disease (PAD) is an important manifestation of atherosclerosis, with an estimated age-adjusted prevalence of approximately 13% in people older than 50 years. Noninvasive vascular laboratory physiologic studies are indispensable tools in the initial evaluation and workup and postintervention follow-up. In this review, we describe a practical approach to the technique, interpretation, pitfalls, and limitations of these physiologic studies.

Gastric pneumatosis: Laboratory and imaging findings associated with mortality in adults.

Aim: To describe laboratory and imaging findings associated with mortality in patients with gastric pneumatosis.

Materials And Methods: Institution review board approval was obtained for this retrospective study. Using radiology report databases, all patients with "gastric pneumatosis" or "emphysematous gastritis" in their CT reports were identified from two institutions during 12 or 9 year periods.

Closed-Loop Control Performance of the Hypoglycemia-Hyperglycemia Minimizer (HHM) System in a Feasibility Study.

Background: This feasibility study investigated the insulin-delivery characteristics of the Hypoglycemia-Hyperglycemia Minimizer (HHM) System-an automated insulin delivery device-in participants with type 1 diabetes.

Methods: Thirteen adults with type 1 diabetes were enrolled in this nonrandomized, uncontrolled, clinical-research-center-based feasibility study. The HHM System comprised a continuous subcutaneous insulin infusion pump, a continuous glucose monitor (CGM), and a model predictive control algorithm with a safety module, run on a laptop platform.

Effect of algorithm aggressiveness on the performance of the Hypoglycemia-Hyperglycemia Minimizer (HHM) System.

The Hypoglycemia-Hyperglycemia Minimizer (HHM) System aims to mitigate glucose excursions by preemptively modulating insulin delivery based on continuous glucose monitor (CGM) measurements. The "aggressiveness factor" is a key parameter in the HHM System algorithm, affecting how readily the system adjusts insulin infusion in response to changing CGM levels. Twenty adults with type 1 diabetes were studied in closed-loop in a clinical research center for approximately 26 hours.

Temporal molecular and biological assessment of an erlotinib-resistant lung adenocarcinoma model reveals markers of tumor progression and treatment response.

Patients with lung cancer with activating mutations in the EGF receptor (EGFR) kinase, who are treated long-term with tyrosine kinase inhibitors (TKI), often develop secondary mutations in EGFR associated with resistance. Mice engineered to develop lung adenocarcinomas driven by the human EGFR T790M resistance mutation are similarly resistant to the EGFR TKI erlotinib. By tumor volume endpoint analysis, these mouse tumors respond to BIBW 2992 (an irreversible EGFR/HER2 TKI) and rapamycin combination therapy.

The use of fluorescent proteins for developing cancer-specific target imaging probes.

Target-specific imaging probes represent a promising tool in the molecular imaging of human cancer. Fluorescently-labeled target-specific probes are useful in imaging cancers because of their ability to bind a target receptor with high sensitivity and specificity. The development of probes relies upon preclinical testing to validate the sensitivity and specificity of these agents in animal models.

Activatable optical imaging with a silica-rhodamine based near infrared (SiR700) fluorophore: a comparison with cyanine based dyes.

Optical imaging is emerging as an important tool to visualize tumors. However, there are many potential choices among the available fluorophores. Optical imaging probes that emit in the visible range can image superficial tumors with high quantum yields; however, if deeper imaging is needed then near-infrared (NIR) fluorophores are necessary.

Molecular imaging of tumor invasion and metastases: the role of MRI.

The processes of tumor invasion and metastasis have been well characterized at the molecular level, and numerous biomarkers of tumor aggressiveness have been discovered. Molecular imaging offers the opportunity to depict specific cell markers relevant to tumor aggressiveness. Here, we describe the role of MRI in identifying tumor invasiveness and metastasis with reference to other methods.

Biodistribution and excretion of monosaccharide-albumin conjugates measured with in vivo near-infrared fluorescence imaging.

Target specific small molecules as modulators of drug delivery may play a significant role in the future development of therapeutics. Small molecules can alter the in vivo pharmacokinetics of therapeutic macromolecules leading to more efficient drug delivery with less systemic toxicity. The potential of creating a more effective drug delivery system through glycosylation has led, for instance, to the addition of galactose to increase drug delivery to the liver.

Real-time optical imaging using quantum dot and related nanocrystals.

Biomedical optical imaging is rapidly evolving because of its desirable features of rapid frame rates, high sensitivity, low cost, portability and lack of radiation. Quantum dots are attractive as imaging agents owing to their high brightness, and photo- and bio-stability. Here, the current status of in vitro and in vivo real-time optical imaging with quantum dots is reviewed.

Length-scale mediated adhesion and directed growth of neural cells by surface-patterned poly(ethylene glycol) hydrogels.

We engineered surfaces that permit the adhesion and directed growth of neuronal cell processes but that prevent the adhesion of astrocytes. This effect was achieved based on the spatial distribution of sub-micron-sized cell-repulsive poly(ethylene glycol) [PEG] hydrogels patterned on an otherwise cell-adhesive substrate. Patterns were identified that promoted cellular responses ranging from complete non-attachment, selective attachment, and directed growth at both cellular and subcellular length scales.

Chondroitin-4-sulfation negatively regulates axonal guidance and growth.

Glycosaminoglycan (GAG) side chains endow extracellular matrix proteoglycans with diversity and complexity based upon the length, composition and charge distribution of the polysaccharide chain. Using cultured primary neurons, we show that specific sulfation in the GAG chains of chondroitin sulfate mediates neuronal guidance cues and axonal growth inhibition. Chondroitin-4-sulfate (CS-A), but not chondroitin-6-sulfate (CS-C), exhibits a strong negative guidance cue to mouse cerebellar granule neurons.

Inhibiting glycosaminoglycan chain polymerization decreases the inhibitory activity of astrocyte-derived chondroitin sulfate proteoglycans.

Chondroitin sulfate proteoglycans (CSPGs) are upregulated in the CNS after injury and participate in the inhibition of axon regeneration mainly through their glycosaminoglycan (GAG) side chains. In the present study, we have identified a new way to alleviate the inhibition of axonal regeneration by CSPG GAGs. We have successfully decreased the amount of CSPG GAG produced by astrocytes by targeting chondroitin polymerizing factor (ChPF), a key enzyme in the CSPG biosynthetic pathway.

Serotonin type-1A receptors modulate adolescent, cocaine-induced offensive aggression in hamsters.

Hamsters repeatedly exposed to cocaine throughout adolescence display highly escalated offensive aggression compared to saline-treated littermates. Recently, we have shown that serotonin neural signaling and development play an important role in adolescent cocaine-induced offensive aggression. This study examined whether the adolescent cocaine-induced aggressive response was modulated by serotonin type 1A (5HT1A) receptors.