Blast-induced neurotrauma (BINT) is a pressing concern for veterans and civilians exposed to explosive devices. Affected personnel may have increased risk for long-term cognitive decline and developing tauopathies including Alzheimer's disease-related disorders (ADRD) or frontal-temporal dementia (FTD). The goal of this study was to identify the effect of BINT on molecular networks and their modulation by mutant tau in transgenic (Tg) mice overexpressing the human tau P301L mutation (rTg4510) linked to FTD or non-carriers.
View Article and Find Full Text PDFObjective: To evaluate the use of vacuum-assisted excisions (VAEs) in the management of B3 lesions within a single UK breast care centre. Assessment was made by determining the upgrade rates of the different B3 lesions at VAE.
Methods And Materials: The study population comprised all patients who had a B3 result and subsequently underwent a VAE between November 2016 and October 2021.
Acta Neuropathol Commun
September 2023
Mild traumatic brain injury (mTBI) induced by low-intensity blast (LIB) is a serious health problem affecting military service members and veterans. Our previous reports using a single open-field LIB mouse model showed the absence of gross microscopic damage or necrosis in the brain, while transmission electron microscopy (TEM) identified ultrastructural abnormalities of myelin sheaths, mitochondria, and synapses. The neurovascular unit (NVU), an anatomical and functional system with multiple components, is vital for the regulation of cerebral blood flow and cellular interactions.
View Article and Find Full Text PDFThe TGx-28.65 biomarker is a 65-gene expression profile generated from testing 28 model chemicals (13 that cause DNA damage and 15 that do not) in human TK6 cells. It is used to predict whether a chemical induces DNA damage or not.
View Article and Find Full Text PDFObjectives: This systematic review is linked to the multifaceted social, economic and personal challenges of dementia and the international recognition of the value of interprofessional education (IPE) and its influence on health and social care outcomes. This review therefore aimed to identify, describe and evaluate the impact of IPE interventions on health and social care practitioners (prequalification and postqualification) understanding of dementia, the quality of care for people with dementia and support for their carers.
Methods: Following PRISMA guidelines, 9 databases were searched (MEDLINE, EMBASE, The Cochrane Library, PsycINFO, CINAHL Plus, Applied Social Sciences Index and Abstracts, Healthcare Management Information Consortium, ERIC and British Education Index).
Introduction: Interprofessional education (IPE) offers a possible way to improve interprofessional collaboration and patient care. Current research addressing the effectiveness of IPE in dementia care is limited. A protocol is described for a systematic review to investigate the evidence for the influence of IPE on collaborative knowledge and skills; interprofessional practice and the delivery of dementia care.
View Article and Find Full Text PDFWe demonstrate functionalized spiroligomers that mimic the HDM2-bound conformation of the p53 activation domain. Spiroligomers are stereochemically defined, functionalized, spirocyclic monomers coupled through pairs of amide bonds to create spiro-ladder oligomers. Two series of spiroligomers were synthesized, one of structural analogs and one of stereochemical analogs, from which we identified compound 1, that binds HDM2 with a Kd value of 400 nM.
View Article and Find Full Text PDFBackground: The Internet has become a common venue for meeting sex partners and planning participation in risky sexual behavior. In this article, we evaluate the first 18 months of the Washington, DC, Department of Health Internet-based Partner Notification (IPN) program for early syphilis infections, using the standard Centers for Disease Control and Prevention (CDC) Disease Investigation Specialist (DIS) disposition codes, as well as Washington, DC, Department of Health's IPN-specific outcomes for pseudonymous partners.
Methods: We analyzed DIS disposition codes and IPN-specific outcomes from all early syphilis investigations initiated January 2007-June 2008.
The results of predictive toxicogenomics investigations over the past 6 years reviewed in this report have shed new light on the potential of molecular expression analysis to more properly classify both genotoxic and nongenotoxic carcinogens and to predict the carcinogenicity of untested chemicals. Predictive toxicogenomics uses global molecular expression data resulting from genomic perturbation (e.g.
View Article and Find Full Text PDFThe colorectal cancer paradigm explains how genetic and histological changes lead normal epithelial cell to transform into pre-malignant adenomas then progress to malignant carcinomas. Using the Genetic Alterations in Cancer Knowledge System intragenic allele loss and gene mutation data from approximately 9000 colorectal tumors were compared to the model of colorectal tumor development. The distribution of mutations along the TP53 codons as a function of tumorigenesis also was analyzed.
View Article and Find Full Text PDFToxicol Appl Pharmacol
November 2008
The Workshop on The Power of Aggregated Toxicity Data addressed the requirement for distributed databases to support quantitative hazard and risk assessment. The authors have conceived and constructed with federal support several databases that have been used in hazard identification and risk assessment. The first of these databases, the EPA Gene-Tox Database was developed for the EPA Office of Toxic Substances by the Oak Ridge National Laboratory, and is currently hosted by the National Library of Medicine.
View Article and Find Full Text PDFMutational incidence and spectra for genes examined in both human and mouse lung and liver tumors were analyzed using the National Institute of Environmental Health Sciences (NIEHS) Genetic Alterations in Cancer (GAC) knowledge system. GAC is a publicly available, web-based system for evaluating data obtained from peer-reviewed studies of genetic changes in tumors associated with exposure to chemical, physical, or biological agents, as well as spontaneous tumors. In mice, mutations in Kras2 and Hras-1 were the most common events reported for lung and liver tumors, respectively, whether chemically induced or spontaneous.
View Article and Find Full Text PDFThe known aneuploidogens, benomyl and its metabolite, carbendazim (methyl 2-benzimidazole carbamate (MBC)), were selected for the third in a series of ongoing projects with selected pesticides. Mutagenicity and carcinogenicity data submitted to the US Environmental Protection Agency's (US EPA's) Office of Pesticide Programs (OPP) as part of the registration process are examined along with data from the open literature. Mutagenicity and carcinogenicity profiles are developed to provide a complete overview and to determine whether an association can be made between benomyl- and MBC-induced mouse liver tumors and aneuploidy.
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