Large Scale Immune Profiling of Infected Humans and Goats Reveals Differential Recognition of Brucella melitensis Antigens

Brucellosis is a widespread zoonotic disease that is also a potential agent of bioterrorism. Current serological assays to diagnose human brucellosis in clinical settings are based on detection of agglutinating anti-LPS antibodies. To better understand the universe of antibody responses that develop after B. melitensis infection, a protein microarray was fabricated containing 1,406 predicted B. melitensis proteins. The array was probed with sera from experimentally infected goats and naturally infected humans from an endemic region in Peru. The assay identified 18 antigens differentially recognized by infected and non-infected goats, and 13 serodiagnostic antigens that differentiate human patients proven to have acute brucellosis from syndromically similar patients. There were 31 cross-reactive antigens in healthy goats and 20 cross-reactive antigens in healthy humans. Only two of the serodiagnostic antigens and eight of the cross-reactive antigens overlap between humans and goats. Based on these results, a nitrocellulose line blot containing the human serodiagnostic antigens was fabricated and applied in a simple assay that validated the accuracy of the protein microarray results in the diagnosis of humans. These data demonstrate that an experimentally infected natural reservoir host produces a fundamentally different immune response than a naturally infected accidental human host

Epithelial to Mesenchymal Transition Is Mechanistically Linked with Stem Cell Signatures in Prostate Cancer Cells

Current management of patients diagnosed with prostate cancer (PCa) is very effective; however, tumor recurrence with Castrate Resistant Prostate Cancer (CRPC) and subsequent metastasis lead to poor survival outcome, suggesting that there is a dire need for novel mechanistic understanding of tumor recurrence, which would be critical for designing novel therapies. The recurrence and the metastasis of PCa are tightly linked with the biology of prostate cancer stem cells or cancer-initiating cells that is reminiscent of the acquisition of Epithelial to Mesenchymal Transition (EMT) phenotype. Increasing evidence suggests that EMT-type cells share many biological characteristics with cancer stem-like cells.In this study, we found that PCa cells with EMT phenotype displayed stem-like cell features characterized by increased expression of Sox2, Nanog, Oct4, Lin28B and/or Notch1, consistent with enhanced clonogenic and sphere (prostasphere)-forming ability and tumorigenecity in mice, which was associated with decreased expression of miR-200 and/or let-7 family. Reversal of EMT by re-expression of miR-200 inhibited prostasphere-forming ability of EMT-type cells and reduced the expression of Notch1 and Lin28B. Down-regulation of Lin28B increased let-7 expression, which was consistent with repressed self-renewal capability.These results suggest that miR-200 played a pivotal role in linking the characteristics of cancer stem-like cells with EMT-like cell signatures in PCa. Selective elimination of cancer stem-like cells by reversing the EMT phenotype to Mesenchymal-Epithelial Transition (MET) phenotype using novel agents would be useful for the prevention of tumor recurrence especially by eliminating those cells that are the "Root Cause" of tumor development and recurrence

How can we achieve a sustainable nuclear fuel cycle?

Dealing with spent nuclear fuel is key if nuclear fission is to be used more widely going forward. Nuclear power is close to carbon neutral, but spent nuclear fuel has a storage lifetime of ~300,000 years. Reprocessing spent nuclear fuel is carried out on large scale using the PUREX “Plutonium Uranium Reduction and Extraction” process. The spent nuclear fuel is reduced to 15% of its original weight and the separated uranium and plutonium reused as “Mixed Oxide Fuel”. In the civil sector, this was carried out by the UK at Sellafield (now curtailed) and continues in France at La Hague. A plant in Rokashamura in Japan has been mothballed after the Fukushima accident. The residual waste must be stored for ~9,000 years with most of the remaining radiotoxicity due to traces of the minor actinides, neptunium, americium and curium, constituting just 0.1% of the original spent fuel. Separation of these minor actinides from the chemically very similar lanthanides (rare earths) in the last 15% of waste remaining after PUREX is the key step for future reprocessing. If separated, the minor actinides can be used as fuel in the next generation of nuclear reactors and converted into benign products, but lanthanides will cause the fission process to shut down if introduced into the reactor pile as they absorb neutrons efficiently. Removing the minor actinides from post PUREX waste will mean that the final residue need only be stored for 300 years. The highly challenging separation of the chemically very similar minor actinides from the lanthanides has been achieved using nitrogen-bearing organic ligands developed at Reading University. This can lead to significantly improved handling of spent nuclear fuels and means that waste nuclear fuel need not be a long-term storage liability but a source of yet more clean power

ISSN exercise & sport nutrition review: research & recommendations

Sports nutrition is a constantly evolving field with hundreds of research papers published annually. For this reason, keeping up to date with the literature is often difficult. This paper is a five year update of the sports nutrition review article published as the lead paper to launch the JISSN in 2004 and presents a well-referenced overview of the current state of the science related to how to optimize training and athletic performance through nutrition. More specifically, this paper provides an overview of: 1.) The definitional category of ergogenic aids and dietary supplements; 2.) How dietary supplements are legally regulated; 3.) How to evaluate the scientific merit of nutritional supplements; 4.) General nutritional strategies to optimize performance and enhance recovery; and, 5.) An overview of our current understanding of the ergogenic value of nutrition and dietary supplementation in regards to weight gain, weight loss, and performance enhancement. Our hope is that ISSN members and individuals interested in sports nutrition find this review useful in their daily practice and consultation with their clients

Testing variable radius forest plot sampling methods using a stochastic simulation model.

This paper describes a computerized forest simulation model developed to evaluate plot sampling methods. The simulation was run several hundred times to compare volume estimates from single phase sampling to those where measurement trees were selected with a larger than standard basal area factor. The methods produced similar volume per acre estimate. Single phase sampling with a standard BAF produced the lowest standard error. Standard errors for sampling with a larger than standard BAF were proportional to the size of BAF used for volume ratio estimation

Vintage Report Oregon 2018

The Oregon Vintage Report symposium for 2018 was held at Linfield College on February 6, 2019. The event took a deep dive into discussions of climate and plant physiological conditions during the 2018 vintage in Oregon, focusing on the interactions between climate and the vineyard, between vine and fruit, and among fruit composition, wine composition, and the influence of the winemaking process. Specific presentations in this video include: Introductory Remarks: Welcome delivered by Mark Anderson. Keynote Presentation: Address delivered by Sam Tannahill. 2018 Climate Analysis (Gregory V. Jones): A discussion of the main climate takeaways from 2018, focusing on regional characteristics. 2018: A Perspective from the Vineyard (Chad Vargas): An on-the-ground management perspective on grape growing for the 2018 vintage. 2018 Plant Physiology Trends (Jessica Cortell): A deep dive into berries, vines, and soil for 2018. 360viti (Brandon Burk): An overview of the online platform for managing vineyards based on plant, fruit, and environmental data. 2018 Maturation Trends (Steve Price): A discussion of maturation trends in 2018, focusing on Price\u27s vineyard in the south Willamette Valley, and practical solutions for dealing with heavy fruit set in early seasons. Testing for Smoke Impact and What You Need to Know (Éric Hervé): A continuation and update of Hervé\u27s 2017 Vintage Report discussion on smoke impact, this presentation provides additional information on testing for smoke taint. Created in 2010, the Vintage Report is an annual forum that aims to gather the wine industry’s most prominent vintners and scientists to discuss the previous vintage, present the latest innovative research, and share technical advances in viticulture and enology. The goal is to foster innovation for sustainable advancements in winemaking through scientific presentations and lectures from the industry’s leading minds. The Vintage Report aims to combine scientific results with empirical knowledge and experience. Topics discussed are deeply rooted in the region where the forum is held, and the analysis delivered at the Vintage Report is driven by vineyard data that paints a picture of local terroir

Comparing patient outcomes between multiple ipsilateral iliac artery stents and isolated iliac artery stents

ObjectiveEndovascular stents are accepted therapy for iliac artery stenoses and occlusions. Surgery is the recommended therapy for patients with severe iliac artery disease, including those with the combination of ipsilateral common iliac artery (CIA) and external iliac artery (EIA) stenoses/occlusions. This study compared patient outcomes, including late open conversion rates, for combined ipsilateral CIA and EIA stenting vs CIA or EIA stents alone.MethodsBetween 1998 and 2010, 588 patients underwent iliac artery stenting at two institutions. Patient comorbidities and outcomes were retrospectively reviewed, and analyses were performed using multivariate regression and Kaplan-Meier methods.ResultsThere were 436 extremities with CIA stents, 195 with EIA stents, and 157 with CIA and EIA stents. The groups did not differ significantly in demographics, comorbidities, or treatment indications. During follow-up, 183 patients died, 95 underwent an endovascular reintervention, and 48 required late open conversion. For patients in the CIA or EIA stent group, the mean ± standard error survival was 5.3 ± 0.3 years, secondary endovascular intervention-free survival was 7.4 ± 0.6 years, late open conversion-free survival was 9.8 ± 0.4 years, and amputation-free survival was 7.6 ± 0.4 years. In the CIA and EIA stent group, survival was 6.1 ± 0.6 years, secondary endovascular intervention-free survival was 7.2 ± 0.6 years, late open conversion-free survival was 9.0 ± 1.1 years, and amputation-free survival was 8.4 ± 0.5 years. Survival, reintervention-free survival, late open conversion-free survival, and amputation-free survival were all similar between patient groups (all P > .05). CIA and EIA stenting in combination was not a predictor of death, reintervention, late open conversion, or amputation.ConclusionsOutcomes are similar for patients with CIA or EIA stents and for those with combined ipsilateral CIA and EIA stents. Late open conversions for iliac artery stent failure are uncommon and not influenced by the location or extent of prior iliac artery stent placement. Endovascular therapy for aortoiliac disease should be extended to consider selected patients with ipsilateral CIA and EIA stenoses/occlusions