Randomised controlled trial to compare the diagnostic yield of positron emission tomography CT (PET-CT) TARGETed pleural biopsy versus CT-guided pleural biopsy in suspected pleural malignancy (TARGET trial).

Introduction: Pleural malignancy, particularly malignant pleural mesothelioma (MPM) is increasing in incidence due to the long latency period from exposure to asbestos to development of the disease. MPM can be challenging to diagnose. For patients presenting without a pleural effusion, CT-guided biopsy remains the primary choice of biopsy, but the diagnostic sensitivity of this investigation is 70%-75%.

Platelet inhibition during ticagrelor monotherapy versus ticagrelor plus aspirin in patients with coronary artery disease (TEMPLATE study): study protocol for a randomised controlled trial.

Background: Dual antiplatelet therapy (DAPT) with aspirin (ASP) and a P2Y blocker is currently standard care after percutaneous coronary intervention (PCI) with stent insertion, and aims to inhibit platelet function in order to prevent stent thrombosis. The P2Y blocker ticagrelor (TIC) has greater antiplatelet effect than the previously used members of this class, such as clopidogrel. In healthy volunteers, TIC is sufficient to cause strong platelet inhibition, with little additional effect from ASP.

Detection of coagulopathy in paediatric heart surgery [DECISION study]: study protocol.

Background: Each year in the UK, ≈3000 children undergo major cardiac surgery requiring cardiopulmonary bypass. Approximately 40 % of these experience excessive bleeding necessitating red cell transfusion or treatment with other blood components. A further 40 % receive blood components because of the perception by clinicians that the risk of bleeding is high.

IACUC Considerations for the Use of Livestock in Translational Research.

Through its program oversight function, the institutional animal care and use committee (IACUC) plays a central role in ensuring the humane use and care of animals in research. To be effective in this role, the IACUC requires explicit knowledge of the species for which it bears oversight responsibility. Owing to a variety of species-specific factors, such as their relatively large size and range of acceptable housing environments, livestock present many special considerations for the IACUC.

Is serum brain-derived neurotrophic factor related to craving for or use of alcohol, cocaine, or methamphetamine?

Background: Data suggests that brain-derived neurotropic factor (BDNF) plays a neuroadaptive role in addiction. Whether serum BDNF levels are different in alcohol or psychostimulants as a function of craving is unknown. Here, we examined craving and serum BDNF levels in persons with alcohol versus psychostimulant dependence.

ERK1/2 and ERK5 have distinct roles in the regulation of brain-derived neurotrophic factor expression.

Neurotrophins play essential roles in the development, differentiation, and survival of neuronal and nonneuronal cells. Alterations in neurotrophin expression have been implicated in a variety of neurodegenerative disorders. Dysregulation of brain-derived neurotrophic factor (BDNF) has been implicated in deficits of long-term potentiation and cognition and may contribute to the development of Alzheimer's disease (AD).

The differences in neuroprotective efficacy of progesterone and medroxyprogesterone acetate correlate with their effects on brain-derived neurotrophic factor expression.

Whereas hormone therapy is used for the treatment of menopausal symptoms, its efficacy in helping reduce the risk of other diseases such as Alzheimer's disease has been questioned in view of the results of recent clinical trials that appeared inconsistent with numerous basic research studies that supported the beneficial effects of hormones. One possible explanation of this discrepancy may lie in the choice of hormone used. For example, we and others found that progesterone is neuroprotective whereas medroxyprogesterone acetate (MPA), the synthetic progestin used in hormone therapy, is not.

Contracting in vivo research: what are the issues?

As a result of increasing internal and external pressures, research institutions are using contract research organizations for the conduct of in vivo research. Many issues arise when contracting animal research, including concern regarding animal health and welfare. Each sponsor institution should develop a program for outsourced in vivo research that evaluates and ensures appropriate care and use of research animals.

Progesterone increases brain-derived neuroptrophic factor expression and protects against glutamate toxicity in a mitogen-activated protein kinase- and phosphoinositide-3 kinase-dependent manner in cerebral cortical explants.

The higher prevalence and risk for Alzheimer's disease in women relative to men has been partially attributed to the precipitous decline in gonadal hormone levels that occurs in women following the menopause. Although considerable attention has been focused on the consequence of estrogen loss, and thus estrogen's neuroprotective potential, it is important to recognize that the menopause results in a precipitous decline in progesterone levels as well. In fact, progesterone is neuroprotective, although the precise mechanisms involved remain unclear.

Training for best practices for agricultural programs.

As with other areas of animal research, ensuring the proper training and qualifications of the individuals working with agricultural animals for use in research, teaching, and testing is critical to both animal welfare and the successful outcome of the study or teaching exercise. The author provides guidance for the development of appropriate training programs for organizations that use agricultural animals in research.