Supercomputers fire lasers to shoot gamma ray beam

Supercomputer simulations have shown scientists a new way to generate controlled beam of gamma rays from lasers. Nearly one million CPU hours on Stampede and Lonestar HPC systems were needed for the particle-in-cell simulation. The Texas Petawatt Laser will use the simulations to guide experimental verification later in 2016. Gamma ray production would make possible basic science research and benefit society through brain imaging, cancer therapy, and anti-terrorist cargo scanning.
Source: ScienceDaily Headlines - Category: Science Source Type: news

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In this study, we show that calorie restriction is protective against age-related increases in senescence and microglia activation and pro-inflammatory cytokine expression in an animal model of aging. Further, these protective effects mitigated age-related decline in neuroblast and neuronal production, and enhanced olfactory memory performance, a behavioral index of neurogenesis in the SVZ. Our results support the concept that calorie restriction might be an effective anti-aging intervention in the context of healthy brain aging. Greater Modest Activity in Late Life Correlates with Lower Incidence of Dementia ...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Abstract Glucose, the key source of metabolic energy, is imported into cells by two categories of transporters: 1) facilitative glucose transporters (GLUTs) and 2) secondary active sodium-glucose cotransporters (SGLTs). Cancer cells have an increased demand for glucose uptake and utilisation compared to normal cells. Previous studies have demonstrated the overexpression of GLUTs, mainly GLUT1, in many cancer types. As the current standard positron emission tomography (PET) tracer 2-deoxy-2-(18F)fluoro-D-glucose (2-FDG) for imaging tumour cells via GLUT1 lacks in sensitivity and specificity, it may soon be replaced...
Source: Arhiv za Higijenu Rada i Toksikologiju - Category: Occupational Health Authors: Tags: Arh Hig Rada Toksikol Source Type: research
CONCLUSIONS:Our findings suggest that LMWH might represent an effective and safe strategy for the management of CVT in cancer patients. The findings are consistent with results from large randomized trials for outcomes of cancer associated venous thrombosis in other anatomical locations. The impact of thrombus recanalization in recurrent thrombosis and bleeding outcomes deserves further exploration. Limitations to our study are the retrospective and non-randomized design for the adjudication of treatment agents.DisclosuresNo relevant conflicts of interest to declare.
Source: Blood - Category: Hematology Authors: Tags: 332. Antithrombotic Therapy Source Type: research
In this report, we propose that the molecular mechanisms of beneficial actions of CR should be classified and discussed according to whether they operate under rich or insufficient energy resource conditions. Future studies of the molecular mechanisms of the beneficial actions of CR should also consider the extent to which the signals/factors involved contribute to the anti-oxidative, anti-inflammatory, anti-tumor and other CR actions in each tissue or organ, and thereby lead to anti-aging and prolongevity. RNA Interference of ATP Synthase Subunits Slows Aging in Nematodes
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Scientists at the Eunice Kennedy Shriver National Institute for Child Health and Human Development (NICHD) have developed a method implemented as pulse sequences and software to be used with magnetic resonance imaging (MRI) scanners and systems. This technology is available for licensing and commercial development. The method allows for measuring and mapping features of the bulk or average apparent diffusion coefficient (ADC) of water in tissue – aiding in stroke diagnosis and cancer therapy assessment. The pulse sequences and software enable MRI scanners to yield diffusion weighted images (DWI) that are orientationa...
Source: NIH OTT Licensing Opportunities - Category: Research Authors: Source Type: research
PET scans with the radiotracer F-18 fluorothymidine (FLT) can help determine...Read more on AuntMinnie.comRelated Reading: SNMMI: PET, MRI may predict pediatric brain tumor outcomes FDG-PET/CT beats FLT-PET/CT for differentiated thyroid cancer FLT-PET could help predict outcome in head and neck cancer JNM: FLT-PET aids prognosis of glioma patients FLT-PET helps predicts cancer therapy results
Source: Headlines - Category: Radiology Source Type: news
This study indicates that frailty and other age-related diseases could be prevented and significantly reduced in older adults. Getting our heart risk factors under control could lead to much healthier old ages. Unfortunately, the current obesity epidemic is moving the older population in the wrong direction, however our study underlines how even small reductions in risk are worthwhile." The study analysed data from more than 421,000 people aged 60-69 in both GP medical records and in the UK Biobank research study. Participants were followed up over ten years. The researchers analysed six factors that could impa...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Conclusion: The 18F-Ala-BF3 was successfully synthesized through one-step 18F-19F isotope exchange with fine specific activity and good radiochemical yield. Following in vitro bio-distribution and in vivo PET imaging in gastric tumor xenografts bearing mice and healthy mice revealed high tumor to normal tissue rate consist with fine tumor imaging of 18F-Ala-BF3. This study shed light on ASCT2 as a cancer biomarker for clinical diagnosis, and emphasized the usefulness of BAAs in tumor PET imaging. 18F-Ala-BF3 represents a useful molecular platform for tumor diagnosis.
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Radiolabeled Small Molecules and New Applications - Oncology Source Type: research
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more. This content is...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
In this study, we did not observe significant age-dependent upregulation of the prominent SASP cytokine Il6 in any tissue, although an upward trend was observed that was consistent in magnitude with previous observations in the heart and kidney. This modest age-related upward trend could be explained by a previous report which demonstrated that senescent cell-secreted IL-6 acts in an autocrine manner, reinforcing the senescent state, rather than inducing senescence or promoting dysfunction in neighboring cells. The decreased expression of Il6 with age we observed in the hypothalamus could be indicative of a lack or ...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
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