360 research outputs found
Health Equity Series: Food Insecurity December 2015
In order to address health equity, it is important to acknowledge the factors that create inequitable health outcomes, such as socioeconomic factors and other inequalities related to race and gender. Although individual responsibility and personal health behaviors have an impact on health outcomes, understanding how the social determinants of health (e.g., education, housing, employment, transportation) play a significant role in both health behaviors and health outcomes is important when attempting to achieve health equity for all Missourians.For the purpose of this report, health equity will be discussed through the examination of Missouri's food system, including how social determinants of health impact food security and food access, as well as the connection between disparities in health outcomes and an inequitable food system
MEN1 (multiple endocrine neoplasia I)
Review on MEN1 (multiple endocrine neoplasia I), with data on DNA, on the protein encoded, and where the gene is implicated
Nova York: uma experiência de desenho dos espaços livres urbanos
This text deals with concepts and questions related to the public open spaces, based on observations made during a recent trip to New York City, where one notices the integration between intention and effective action over such spaces, if compared to the current stage of how this subject is approched among us. The concern with the welfare of the user, who searchs for collective spaces in his spare moments of leisure in rest, along with a Public Police of Encouragment, has set forth varied spacial solution that are spread all over the design that expresses the qualitative evolution of open space treatmentO presente texto procura discutir conceitos e questões relativas ao espaço livre urbano, tendo como premissa observações de viagem recente à cidade de Nova York, onde se destaca a integração entre a intenção e a ação efetiva sobre estes espaços, em contraponto ao atual estágio da abordagem deste tema entre nós. A preocupação com o bem-estar do usuário que percorre a cidade, vi venci ando os espaços de uso coletivo em seus momentos de descanso e lazer, somada a uma polÃtica pública de incentivos, promoveu diferenciadas soluções espaciais, espalhadas por toda a região de Manhattan, culminando em um desenho da paisagem que expressa a evolução qualitativa do tratamento do espaço livr
Forthcoming courses and meetings
19.11.11 Annual RBRS symposium 2011 Imaging of the spine and the spinal cord: state-of-the-art Organization: Dr B. Desprechin
Forthcoming courses and meetings
19.11.11 Annual RBRS symposium 2011 Imaging of the spine and the spinal cord: state-of-the-art Organization: Dr B. Desprechin
Multiple endocrine neoplasia type 1 (MEN1)
Review on Multiple endocrine neoplasia type 1 (MEN1), with data on clinics, and the genes involved
Surveillance and Datalink Communication Performance Analysis for Distributed Separation Assurance System Architectures
This study investigates the effects of two technical enablers: Automatic Dependent Surveillance - Broadcast (ADS-B) and digital datalink communication, of the Federal Aviation Administration s Next Generation Air Transportation System (NextGen) under two separation assurance (SA) system architectures: ground-based SA and airborne SA, on overall separation assurance performance. Datalink performance such as successful reception probability in both surveillance and communication messages, and surveillance accuracy are examined in various operational conditions. Required SA performance is evaluated as a function of subsystem performance, using availability, continuity, and integrity metrics to establish overall required separation assurance performance, under normal and off-nominal conditions
Is Surgery Beneficial for MEN1 Patients with Small (≤2 cm), Nonfunctioning Pancreaticoduodenal Endocrine Tumor? An Analysis of 65 Patients from the GTE
Background: The management of small, nonfunctioning pancreaticoduodenal endocrine tumors (NFPET) in multiple endocrine neoplasia type 1 (MEN1) patients is still controversial. We therefore investigated the effect of surgery on survival and tumor progression in MEN1 patients with NFPET ≤2 cm by analyzing data from the Groupe des Tumeurs Endocrines (GTE) registry. Materials and Methods: Among 579 MEN1 patients in the registry, 65 had NFPET ≤ 2 cm. Fifteen (23%) underwent pancreatectomy, 9 at least segmental pancreatectomies and 6 biopsies or enucleations (the surgery group), and 50 (77%) were followed conservatively (the no surgery group). Age at MEN1 and NFPET diagnosis was similar in both groups, as was size of the primary tumor. Seven (10.8%) patients had metastases. Five metastases were synchronous, and 2 (one in each group) were metachronous. Tumor size was similar in patients with or without metastasis. Results: There was no perioperative mortality. The average follow-up time after NFPET diagnosis was 6.7 years in the surgery group and 3.3 years in the no surgery group. Three (4.6%) patients died during follow-up, 2 due to NFPET and 1 due to thymus tumor. The 2 patients who died of NFPET had undergone pancreatic surgery at the time of NFPET diagnosis. The 2 groups did not differ significantly with respect to tumor progression [5/15 (33%) vs 6/38 (16%), P = 0.16]. Overall life expectancy of patients with NFPET ≤2 cm was not different than that of the 229 MEN1 patients in the registry without any pancreaticoduodenal tumor (P = 0.33). Conclusions: This study suggests that surgery may not be beneficial for MEN1 patients with NFPET ≤2 c
p.Ala541Thr variant of MEN1 gene: A non deleterious polymorphism or a pathogenic mutation?
Context
Multiple Endocrine Neoplasia Type 1 (MEN1) is an autosomal dominant inherited syndrome, related to mutations in the MEN1 gene. Controversial data suggest that the nonsynonymous p.Ala541Thr variant, usually considered as a non-pathogenic polymorphism, may be associated with an increased risk of MEN1-related lesions in carriers.
Objective
The aim of this study was to evaluate the pathogenic influence of the p.Ala541Thr variant on clinical and functional outcomes.
Patients and methods
We analysed a series of 55 index patients carrying the p.Ala541Thr variant. Their clinical profile was compared to that of 117 MEN1 patients. The biological impact of the p.Ala541Thr variant on cell growth was additionally investigated on menin-deficient Leydig cell tumour (LCT)10 cells generated from Men1+/Men1− heterozygous knock-out mice, and compared with wild type (WT).
Results
The mean age at first appearance of endocrine lesions was similar in both p.Ala541Thr carriers and MEN1 patients, but no p.Ala541Thr patient had more than one cardinal MEN1 lesion at initial diagnosis. A second MEN1 lesion was diagnosed in 13% of MEN1 patients and in 7% of p.Ala541Thr carriers in the year following preliminary diagnosis. Functional studies on LCT10 cells showed that overexpression of the p.Ala541Thr variant did not inhibit cell growth, which is in direct contrast to results obtained from investigation of WT menin protein.
Conclusion
Taken together, these data raise the question of a potential pathogenicity of the p.Ala541Thr missense variant of menin that commonly occurs within the general population. Additional studies are required to investigate whether it may be involved in a low-penetrance MEN1 phenotype
Modulation of enhancer looping and differential gene targeting by Epstein-Barr virus transcription factors directs cellular reprogramming
Epstein-Barr virus (EBV) epigenetically reprogrammes B-lymphocytes to drive immortalization and facilitate viral persistence. Host-cell transcription is perturbed principally through the actions of EBV EBNA 2, 3A, 3B and 3C, with cellular genes deregulated by specific combinations of these EBNAs through unknown mechanisms. Comparing human genome binding by these viral transcription factors, we discovered that 25% of binding sites were shared by EBNA 2 and the EBNA 3s and were located predominantly in enhancers. Moreover, 80% of potential EBNA 3A, 3B or 3C target genes were also targeted by EBNA 2, implicating extensive interplay between EBNA 2 and 3 proteins in cellular reprogramming. Investigating shared enhancer sites neighbouring two new targets (WEE1 and CTBP2) we discovered that EBNA 3 proteins repress transcription by modulating enhancer-promoter loop formation to establish repressive chromatin hubs or prevent assembly of active hubs. Re-ChIP analysis revealed that EBNA 2 and 3 proteins do not bind simultaneously at shared sites but compete for binding thereby modulating enhancer-promoter interactions. At an EBNA 3-only intergenic enhancer site between ADAM28 and ADAMDEC1 EBNA 3C was also able to independently direct epigenetic repression of both genes through enhancer-promoter looping. Significantly, studying shared or unique EBNA 3 binding sites at WEE1, CTBP2, ITGAL (LFA-1 alpha chain), BCL2L11 (Bim) and the ADAMs, we also discovered that different sets of EBNA 3 proteins bind regulatory elements in a gene and cell-type specific manner. Binding profiles correlated with the effects of individual EBNA 3 proteins on the expression of these genes, providing a molecular basis for the targeting of different sets of cellular genes by the EBNA 3s. Our results therefore highlight the influence of the genomic and cellular context in determining the specificity of gene deregulation by EBV and provide a paradigm for host-cell reprogramming through modulation of enhancer-promoter interactions by viral transcription factors
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