排序方式: 共有182条查询结果,搜索用时 15 毫秒
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Ariana M. Chao Thomas A. Wadden Robert I. Berkowitz George Blackburn Paula Bolin Jeanne M. Clark Mace Coday Jeffrey M. Curtis Linda M. Delahanty Gareth R. Dutton Mary Evans Linda J. Ewing John P. Foreyt Linda J. Gay Edward W. Gregg Helen P. Hazuda James O. Hill Edward S. Horton Denise K. Houston John M. Jakicic Robert W. Jeffery Karen C. Johnson Steven E. Kahn William C. Knowler Anne Kure Katherine L. Michalski Maria G. Montez Rebecca H. Neiberg Jennifer Patricio Anne Peters Xavier Pi‐Sunyer Henry Pownall David Reboussin Bruce Redmon W. Jack Rejeski Helmut Steinburg Martha Walker Donald A. Williamson Rena R. Wing Holly Wyatt Susan Z. Yanovski Ping Zhang 《Obesity (Silver Spring, Md.)》2020,28(5):893-901
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Dovgan Barbara Miklavčič Damijan Knežević Miomir Zupan Janja Barlič Ariana 《Cytotechnology》2021,73(3):391-411
Cytotechnology - Trehalose is a nontoxic disaccharide and a promising cryoprotection agent for medically applicable cells. In this study, the efficiency of combining trehalose with reversible... 相似文献
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Anna Fontana Giuliana Albanese Ariana Manglli Laura Tomassoli Antonio Tiberini 《The Annals of applied biology》2020,176(3):170-179
A study aimed at defining population structure of Italian tomato spotted wilt virus (TSWV) isolates was performed. Full genome sequencing of six TSWV isolates found in two Italian regions (two from Latium: Lazio 17 and Tarquinia; and four from Calabria: PepCal 10, 12, 22 and 24) were assembled. Identity percentages in nucleotide sequence among these TSWV isolates are here provided. The six full length genome sequences were compared with other two Italian isolates (p105 and p202/3WT) already fully sequenced, as well as full TSWV genomes that could be retrieved from GenBank. Phylogenetic analysis, performed in concatenated sequences and for each gene of each genome segment (L, M and S), confirmed the presence of two clades, namely A-like and D-like. In particular, the phylogenetic tree based on segment L grouped all the newly sequenced TSWV isolates in D-like clade. In the M segment phylogenetic tree, all our TSWV isolates shifted in the A-like clade. Isolates separation was not correlated to their geographical origin in phylogenetic study of distinct ORFs encoded by the RNA S segment. In fact, in nucleocapsid-encoding phylogenetic tree, PepCal 10 and 22 grouped in an A-like clade with p105, PepCal 12 and 24 in a D-like clade with p202/3WT, whereas Lazio 17 and Tarquinia in a third well distinct group. NSs tree displayed only PepCal 10 with p105 in A-like clade, whereas PepCal 12, 22, 24 with p202/3WT in D-like subclade; and isolates from Latium grouped a separated clade adjacent to D-like isolates. Additional analysis on putative reassortment events showed that TSWV Calabrian isolates likely originated from a reassortment event in M RNA and other in S RNA with p105 as major parent. Recombination events were detected in isolates from Latium in L and S RNAs with Chinese isolates as putative major parent. 相似文献
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Ariana Barbera Betancourt Juliet L. Emery Asha Recino F. Susan Wong Anne Cooke Klaus Okkenhaug Maja Wallberg 《PloS one》2016,11(1)
Type 1 diabetes is caused by the destruction of insulin producing beta cells by the immune system. The p110δ isoform of PI3K is expressed primarily in cells of haematopoietic origin and the catalytic activity of p110δ is important for the activation of these cells. Targeting of this pathway offers an opportunity to reduce immune cell activity without unwanted side effects. We have explored the effects of a specific p110δ isoform inhibitor, IC87114, on diabetogenic T cells both in vitro and in vivo, and find that although pharmacological inhibition of p110δ has a considerable impact on the production of pro-inflammatory cytokines, it does not delay the onset of diabetes after adoptive transfer of diabetogenic cells. Further, we demonstrate that combination treatment with CTLA4-Ig does not improve the efficacy of treatment, but instead attenuates the protective effects seen with CTLA4-Ig treatment alone. Our results suggest that decreased IL-10 production by Foxp3+ CD4+ T cells in the presence of IC87114 negates individual anti-inflammatory effects of IC8114 and CTLA4-Ig. 相似文献
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Ping Zhang Jennifer Guergues Amy R. Alleyne Thomas J. Cirino Owen Nadeau Ariana M. Figueroa Heather M. Stacy Takayoshi Suzuki Jay P. McLaughlin Stanley M. Stevens Jr Bin Liu 《Proteomics》2022,22(9):2100137
As the resident immune cells in the central nervous system, microglia play an important role in the maintenance of its homeostasis. Dysregulation of microglia has been associated with the development and maintenance of chronic pain. However, the relevant molecular pathways remain poorly defined. In this study, we used a mass spectrometry-based proteomic approach to screen potential changes of histone protein modifications in microglia isolated from the brain of control and cisplatin-induced neuropathic pain adult C57BL/6J male mice. We identified several novel microglial histone modifications associated with pain, including statistically significantly decreased histone H3.1 lysine 27 mono-methylation (H3.1K27me1, 54.8% of control) and H3 lysine 56 tri-methylation (7.5% of control), as well as a trend suggesting increased H3 tyrosine 41 nitration. We further investigated the functional role of H3.1K27me1 and found that treatment of cultured microglial cells for 4 consecutive days with 1–10 μM of NCDM-64, a potent and selective inhibitor of lysine demethylase 7A, an enzyme responsible for the demethylation of H3K27me1, dose-dependently elevated its levels with a greater than a two-fold increase observed at 10 μM compared to vehicle-treated control cells. Moreover, pretreatment of mice with NCDM-64 (10 or 25 mg/kg/day, i.p.) prior to cisplatin treatment prevented the development of neuropathic pain in mice. The identification of specific chromatin marks in microglia associated with chronic pain may yield critical insight into the contribution of microglia to the development and maintenance of pain, and opens new avenues for the development of novel nonopioid therapeutics for the effective management of chronic pain. 相似文献
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ACEME NYIKA WENCESLAUS KILAMA GODFREY B. TANGWA ROMA CHILENGI PAULINA TINDANA 《Developing world bioethics》2009,9(3):149-156
A needs assessment survey of ethics review committees (ERCs) across Africa was conducted in order to establish their major needs and areas of weaknesses in terms of ethical review capacity. The response rate was 84% (31 of 37 targeted committees), and committees surveyed were located in 18 African countries. The majority of the responding committees (61%) have been in existence between 5 and 10 years; approximately 74% of the respondents were institutional committees, with the remainder being either national (6/31) or regional (2/31).
In terms of the ethical review process, nine of the 31 committees that responded did not have standard operating procedures (SOPs), and seven of the 22 that did have SOPs had never revised them after their initial development (an average period of three years). Of the 31 committees, 10 operated without any ethical guidelines. Many of the committees (13/30) met once per month, and the number of proposals reviewed annually varied, ranging from five to over 100. All respondents relied on paper-based data management and archiving systems.
Overall, the survey identified the major constraints on ERCs as lack of office equipment, outdated or lack of SOPs, lack of electronic data management systems, inadequate resources, lack of or insufficient expertise on the committees, and poor recognition of the importance of the role of the committees. Consequently, the authors are addressing the identified needs and weaknesses through the Bill and Melinda Gates Foundation-funded capacity building project. The impact of the intervention project will be assessed during and at the end of the four-year longitudinal project. 相似文献
In terms of the ethical review process, nine of the 31 committees that responded did not have standard operating procedures (SOPs), and seven of the 22 that did have SOPs had never revised them after their initial development (an average period of three years). Of the 31 committees, 10 operated without any ethical guidelines. Many of the committees (13/30) met once per month, and the number of proposals reviewed annually varied, ranging from five to over 100. All respondents relied on paper-based data management and archiving systems.
Overall, the survey identified the major constraints on ERCs as lack of office equipment, outdated or lack of SOPs, lack of electronic data management systems, inadequate resources, lack of or insufficient expertise on the committees, and poor recognition of the importance of the role of the committees. Consequently, the authors are addressing the identified needs and weaknesses through the Bill and Melinda Gates Foundation-funded capacity building project. The impact of the intervention project will be assessed during and at the end of the four-year longitudinal project. 相似文献
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Rocio Acuna-Hidalgo Denny Schanze Ariana Kariminejad Ann Nordgren Mohamad Hasan Kariminejad Peter Conner Giedre Grigelioniene Daniel Nilsson Magnus Nordenskjöld Anna Wedell Christoph Freyer Anna Wredenberg Dagmar Wieczorek Gabriele Gillessen-Kaesbach Hülya Kayserili Nursel Elcioglu Siavash Ghaderi-Sohi Payman Goodarzi Hamidreza Setayesh Maartje van de Vorst Marloes Steehouwer Rolph Pfundt Birgit Krabichler Cynthia Curry Malcolm G. MacKenzie Kym M. Boycott Christian Gilissen Andreas R. Janecke Alexander Hoischen Martin Zenker 《American journal of human genetics》2014
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Aranda R Doménech E Rus AD Real JT Sastre J Viña J Pallardó FV 《Free radical research》2007,41(11):1195-1200
This study assessed the role of xanthine oxidase in vascular ageing. A positive correlation between xanthine oxidase activity and age was found in human plasma. Similar results were found in rat plasma. Xanthine oxidase expression and activity in homogenates from the aortic wall were significantly higher in samples from old rats than in their young counterparts (p < 0.01). In rat skeletal muscle homogenates both xanthine oxidase expression and activity showed a similar age-related profile. Superoxide production by xanthine oxidase in aortic rings was higher in aged rats. Uric acid, the final product of xanthine oxidase has been proposed as a risk factor for coronary heart disease and an independent marker of worse prognosis in patients with moderate-to-severe chronic heart failure. These results give a possible explanation for this correlation and underscore the role of xanthine oxidase in ageing. 相似文献