SnPKS19 Encodes the Polyketide Synthase for Alternariol Mycotoxin Biosynthesis in the Wheat Pathogen Parastagonospora nodorum.

Alternariol (AOH) is an important mycotoxin from the Alternaria fungi. AOH was detected for the first time in the wheat pathogen Parastagonospora nodorum in a recent study. Here, we exploited reverse genetics to demonstrate that SNOG_15829 (SnPKS19), a close homolog of Penicillium aethiopicum norlichexanthone (NLX) synthase gene gsfA, is required for AOH production.

Single umbilical artery.

The umbilical cord usually contains two arteries and one vein. The vein carries the oxygenated blood from the placenta to the fetus. The arteries carry the deoxygenated blood and the waste products from the fetus to the placenta.

A rare case of typhoid presenting with fever, ascites, hyponatremia, thrombocytopenia, mesenteric lymphadenitis, and multi-drug resistance.

A rare case of typhoid presenting with thrombocytopenia, hyponatremia, ascites mesenteric adenitis, and multi-drug resistance is being presented in this article. An 8-year-old girl was admitted with a history of fever, vomiting, abdominal pain and loose stools. Clinical examination revealed fever and hepatosplenomegaly.

A case report and literature review of Fanconi Anemia (FA) diagnosed by genetic testing.

Fanconi anemia (FA) is a genetically heterogeneous rare autosomal recessive disorder characterized by congenital malformations, hematological problems and predisposition to malignancies. The genes that have been found to be mutated in FA patients are called FANC. To date 16 distinct FANC genes have been reported.

The imagination inflation effect in healthy older adults and patients with mild Alzheimer's disease.

Objective: The imagination inflation effect is a type of memory distortion defined as an increased tendency to falsely remember that an item has been seen, or an action has been performed, when it has only been imagined. For patients with very mild Alzheimer's disease (AD), susceptibility to the imagination inflation effect could have significant functional consequences in daily life.

Method: We assessed whether patients with very mild AD were more or less susceptible to the imagination inflation effect when compared with healthy older adults.

Pathway to the piezoelectronic transduction logic device.

The piezoelectronic transistor (PET) has been proposed as a transduction device not subject to the voltage limits of field-effect transistors. The PET transduces voltage to stress, activating a facile insulator-metal transition, thereby achieving multigigahertz switching speeds, as predicted by modeling, at lower power than the comparable generation field effect transistor (FET). Here, the fabrication and measurement of the first physical PET devices are reported, showing both on/off switching and cycling.

Recent advances in the Zymoseptoria tritici-wheat interaction: insights from pathogenomics.

We examine the contribution of next generation sequencing (NGS) to our understanding of the interaction between the fungal pathogen Zymoseptoria tritici and its wheat host. Recent interspecific whole genome comparisons between Z. tritici and its close relatives provide evidence that Z.

Phytopathogen emergence in the genomics era.

Phytopathogens are a global threat to plant agriculture and biodiversity. The genomics era has lead to an exponential rise in comparative gene and genome studies of both economically significant and insignificant microorganisms. In this review we highlight some recent comparisons and discuss how they identify shared genes or genomic regions associated with host virulence.

U.S. national PM2.5 Chemical Speciation Monitoring Networks-CSN and IMPROVE: description of networks.

The US. EnvironmentalProtection Agency (EPA) initiated the national PM2.5 Chemical Speciation Monitoring Network (CSN) in 2000 to support evaluation of long-term trends and to better quantify the impact of sources on particulate matter (PM) concentrations in the size range below 2.

Advancing research and practice in HIV and rehabilitation: a framework of research priorities in HIV, disability and rehabilitation.

Background: HIV increasingly is experienced as a complex chronic illness where individuals are living longer with a range of physical, cognitive, mental and social health-related challenges associated with HIV, comorbidities and aging, a concept that may be termed 'disability'. Rehabilitation such as physical therapy and occupational therapy can help address disability and has the potential to improve quality of life in people living with HIV. Hence, the role for rehabilitation in the context of HIV, aging and comorbidities is emerging.

Assessing changes over time in healthcare provider performance: addressing regression to the mean over multiple time points.

In recent years, the evaluation of healthcare provider performance has become standard for governments, insurance companies, and other stakeholders. Often, performance is compared across providers using indicators in one time period, for example a year. However it is often important to assess changes in the performance of individual providers over time.

A Core Gene Set Describes the Molecular Basis of Mutualism and Antagonism in Epichloë spp.

Beneficial plant-fungal interactions play an important role in the ability of plants to survive changing environmental conditions. In contrast, phytopathogenic fungi fall at the opposite end of the symbiotic spectrum, causing reduced host growth or even death. In order to exploit beneficial interactions and prevent pathogenic ones, it is essential to understand the molecular differences underlying these alternative states.

Combining protein ratio p-values as a pragmatic approach to the analysis of multirun iTRAQ experiments.

iTRAQ labeling of peptides is widely used for quantitative comparison of biological samples using mass spectrometry. However, iTRAQ determined protein ratios have varying credibility depending on the number and quality of the peptide ratios used to generate them, and accounting for this becomes problematic particularly in the multirun scenario needed for larger scale biological studies. One approach to this problem relies on the use of sophisticated statistical global models using peptide ratios rather than working directly with the protein ratios, but these yield complex models whose solution relies on computational approaches such as stage-wise regression, which are nontrivial to run and verify.

A chemical ecogenomics approach to understand the roles of secondary metabolites in fungal cereal pathogens.

Secondary metabolites (SMs) are known to play important roles in the virulence and lifestyle of fungal plant pathogens. The increasing availability of fungal pathogen genome sequences and next-generation genomic tools have allowed us to survey the SM gene cluster inventory in individual fungi. Thus, there is immense opportunity for SM discovery in these plant pathogens.

A genome-wide survey of the secondary metabolite biosynthesis genes in the wheat pathogen .

The model pathogen is a necrotroph and the causal agent of the wheat disease Septoria nodorum blotch (SNB). The sequenced genome has revealed that the fungus harbours a large number of secondary metabolite genes. Secondary metabolites are known to play important roles in the virulence of plant pathogens, but limited knowledge is available about the SM repertoire of this wheat pathogen.

An in planta-expressed polyketide synthase produces (R)-mellein in the wheat pathogen Parastagonospora nodorum.

Parastagonospora nodorum is a pathogen of wheat that affects yields globally. Previous transcriptional analysis identified a partially reducing polyketide synthase (PR-PKS) gene, SNOG_00477 (SN477), in P. nodorum that is highly upregulated during infection of wheat leaves.

A pilot randomized control trial: testing a transitional care model for acute psychiatric conditions.

Objective: People with multiple and persistent mental and physical health problems have high rates of transition failures when transferring from a hospital level of care to home. The transitional care model (TCM) is evidence-based and demonstrated to improve posthospital outcomes for elderly with physical health conditions, but it has not been studied in the population with serious mental illness.

Method: Using a randomized controlled design, 40 inpatients from two general hospital psychiatric units were recruited and randomly assigned to an intervention group (n = 20) that received the TCM intervention that was delivered by a psychiatric nurse practitioner for 90 days posthospitalization, or a control group (n = 20) that received usual care.

Measuring disability experienced by adults living with HIV: assessing construct validity of the HIV Disability Questionnaire using confirmatory factor analysis.

Objectives: To assess the construct validity of the HIV Disability Questionnaire (HDQ), a self-administered questionnaire that describes the presence, severity and episodic nature of disability experienced by people living with HIV.

Design: We conducted a confirmatory factor analysis. We hypothesised that domains in the HDQ characterised six dimensions of disability, each represented by HDQ items: physical symptoms and impairments (20 items); cognitive symptoms and impairments (3 items); mental and emotional health symptoms and impairments (11 items); uncertainty (14 items); difficulties with day-to-day activities (9 items) and challenges to social inclusion (12 items).

Aging with HIV: a model of disability.

The purpose of this qualitative study was to develop a theoretical model describing the disability experienced by older adults living with HIV. Forty nine HIV positive men and women over the age of 50 years participated in in-depth qualitative interviews. Transcribed interviews were analyzed using grounded theory techniques.

The necrotrophic effector protein SnTox3 re-programs metabolism and elicits a strong defence response in susceptible wheat leaves.

Background: The fungus Stagonospora nodorum is a necrotrophic pathogen of wheat. It causes disease by secreting proteinaceous effectors which interact with proteins encoded by dominant susceptibility genes in the host. The outcome of these interactions results in necrosis, allowing the fungus to thrive on dead plant material.

Which dimensions of disability does the HIV Disability Questionnaire (HDQ) measure? A factor analysis.

Purpose: To assess the dimensions of disability measured by the HIV Disability Questionnaire (HDQ), a newly developed 72-item self-administered questionnaire that describes the presence, severity and episodic nature of disability experienced by people living with HIV.

Methods: We recruited adults living with HIV from hospital clinics, AIDS service organizations and a specialty hospital and administered the HDQ followed by a demographic questionnaire. We conducted an exploratory factor analysis using disability severity scores to determine the domains of disability in the HDQ.

Synergistic tumor suppression by combined inhibition of telomerase and CDKN1A.

Tumor suppressor p53 plays an important role in mediating growth inhibition upon telomere dysfunction. Here, we show that loss of the p53 target gene cyclin-dependent kinase inhibitor 1A (CDKN1A, also known as p21(WAF1/CIP1)) increases apoptosis induction following telomerase inhibition in a variety of cancer cell lines and mouse xenografts. This effect is highly specific to p21, as loss of other checkpoint proteins and CDK inhibitors did not affect apoptosis.

A process oriented approach to promoting collaborative practice: Incorporating complexity methods.

Background: Only recently have complexity informed methods been viewed as a strategy for changing health care systems and care delivery.

Aims: This article reports on participants' perceptions of being involved in a complexity informed educational approach to promote interprofessional collaboration in a system of care for children with disabilities.

Methods: Over a one-year period, all employees within a network of eight community agencies participated in three day-long workshops.

Lessons learned from implementing a pilot RCT of transitional care model for individuals with serious mental illness.

We adapted an evidence-based transitional care model for older adults being released from acute care hospitals for patients with serious mental illness and medical co-morbidities being discharged from two psychiatric units of an acute care hospital (TCare) and evaluated implementation issues. An advisory group (AG) of community stakeholders assessed barriers and facilitators of a 90-day T-Care intervention delivered by a psychiatric nurse practitioner (NP) in the context of conducting a pilot randomized controlled trial. Minutes of AG and case narratives by NP of 20 intervention participants were content analyzed.