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排序方式: 共有387条查询结果,搜索用时 15 毫秒
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Fluoromethylcyclopropylamine derivatives as potential in vivo toxicophores – A cautionary disclosure
Ben Acton Helen F. Small Kate M. Smith Alison McGonagle Alexandra I.J. Stowell Dominic I. James Niall M. Hamilton Nicola Hamilton James R. Hitchin Colin P. Hutton Ian D. Waddell Donald J. Ogilvie Allan M. Jordan 《Bioorganic & medicinal chemistry letters》2019,29(4):560-562
Fluorination of metabolic hotspots in a molecule is a common medicinal chemistry strategy to improve in vivo half-life and exposure and, generally, this strategy offers significant benefits. Here, we report the application of this strategy to a series of poly-ADP ribose glycohydrolase (PARG) inhibitors, resulting in unexpected in vivo toxicity which was attributed to this single-atom modification. 相似文献
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Humphries PS Almaden JV Barnum SJ Carlson TJ Do QQ Fraser JD Hess M Kim YH Ogilvie KM Sun S 《Bioorganic & medicinal chemistry letters》2006,16(23):6116-6119
A series of novel pyridine-2-propanoic acids was synthesized. A structure-activity relationship study of these compounds led to the identification of potent dual PPARalpha/gamma agonists with varied isoform selectivity. Based on the results of efficacy studies in diabetic (db/db) mice, and the desired pharmacokinetic parameters, compound (S)-13 was selected for further profiling. 相似文献
87.
Ballard P Bradbury RH Harris CS Hennequin LF Hickinson M Kettle JG Kendrew J Klinowska T Ogilvie DJ Pearson SE Williams EJ Wilson I 《Bioorganic & medicinal chemistry letters》2006,16(18):4908-4912
The structure-activity and structure-property relationships of anilinoquinazoline inhibitors of EGFR were investigated. Strategies to lower volume of distribution and shorten half-life through structure and pKa modulation are discussed. 相似文献
88.
Vargas ML Cruickshank RH Ross JG Holyoake AJ Ogilvie SC Paterson AM 《Molecular ecology resources》2009,9(2):505-515
The brushtail possum is a major agricultural and ecological pest in New Zealand. A novel noninvasive DNA sampling tool for detecting its presence (WaxTags, or WT) was tested. DNA was recovered from saliva left on WT, and two lengths (407 bp and 648 bp) of the cytochrome c oxidase I (COI) barcoding region were amplified by polymerase chain reaction (PCR). PCR products were considered (+) when a DNA band was clearly visible by electrophoresis. Different factors that might affect PCR (+) were investigated with captive possums: (i) both extraction protocols of the QIAGEN DNeasy Blood and Tissue Kit, (ii) effect of an overnight or longer delay of up to 3 weeks before DNA extraction on both COI amplicons, and (iii) effect of the individual, order and magnitude of the bite. Extraction protocols were not significantly different. The effect of the overnight delay was not significant, and amplification of the short amplicon was significantly higher (100%) than for the long fragment (48%). After a two or 3‐week delay, the short amplicon had 94% and 56% PCR (+), success rates, respectively. Individual, order and magnitude of a bite had no significant effect. The delay trial was repeated with WT from the wild, for which PCR (+) rate of the short amplicon was 63%, regardless of freshness. Four microsatellites were amplified from captive WT samples. We conclude that DNA from saliva traces can be recovered from WT, a potential new tool for noninvasive monitoring of possums and other wildlife. 相似文献
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Human monocyte derived dendritic cells express functional P2X and P2Y receptors as well as ecto-nucleotidases 总被引:14,自引:0,他引:14
Berchtold S Ogilvie AL Bogdan C Mühl-Zürbes P Ogilvie A Schuler G Steinkasserer A 《FEBS letters》1999,458(3):424-428
We investigated the expression and function of P2 receptors and ecto-nucleotidases on human monocyte derived dendritic cells (DC). In addition we analyzed the effect of extracellular ATP on the maturation of DC. By RT-PCR, DC were found to express mRNA for several P2X (P2X1, P2X4, P2X5, P2X7) and P2Y (P2Y1, P2Y2, P2Y4, P2Y5, P2Y6, P2Y10, P2Y11) receptors. As shown by FURA-2 measurement, triggering of P2 receptors resulted in an increase in free intracellular Ca2+. In combination with Tumor necrosis factor-alpha, ATP increased the expression of the DC surface markers CD80, CD83 and CD86 indicating a maturation promoting effect. DC expressed the ecto-apyrase CD39 and the ecto-5'-nucleotidase CD73 as demonstrated by RT-PCR. Extracellular ATP was rapidly hydrolyzed by these ecto-enzymes as shown by separation of 3H-labeled ATP metabolites using a thin layer technique. These data suggest that ATP acts as a costimulatory factor on DC maturation. 相似文献