4 research outputs found
Chemical Synthesis and Characterization of Epicatechin Glucuronides and Sulfates: Bioanalytical Standards for Epicatechin Metabolite Identification
The monoglucuronides and sulfates of epicatechin, 3′-<i>O</i>-methylepicatechin, and 4′-<i>O</i>-methylepicatechin,
respectively, were synthesized as authentic bioanalytical standards.
Reversed-phase HPLC methods capable of baseline separation of the
glucuronides and sulfates have been developed. Both the epicatechin
glucuronides and sulfates were stable in the solid state when stored
under ambient conditions and in aqueous solution when stored refrigerated.
These results should prove invaluable to the research community as
analytical standards as well as in future studies of the biological
and pharmacological effects of epicatechin in humans
Targeting Acidic Mammalian chitinase Is Effective in Animal Model of Asthma
This article highlights our work
toward the identification of a potent, selective, and efficacious
acidic mammalian chitinase (AMCase) inhibitor. Rational design, guided
by X-ray analysis of several inhibitors bound to human chitotriosidase
(hCHIT1), led to the identification of compound <b>7f</b> as
a highly potent AMCase inhibitor (IC<sub>50</sub> values of 14 and
19 nM against human and mouse enzyme, respectively) and selective
(>150× against mCHIT1) with very good PK properties. This
compound dosed once daily at 30 mg/kg po showed significant anti-inflammatory
efficacy in HDM-induced allergic airway inflammation in mice, reducing
inflammatory cell influx in the BALF and total IgE concentration in
plasma, which correlated with decrease of chitinolytic activity. Therapeutic
efficacy of compound <b>7f</b> in the clinically relevant aeroallergen-induced
acute asthma model in mice provides a rationale for developing AMCase
inhibitor for the treatment of asthma
Targeting Acidic Mammalian chitinase Is Effective in Animal Model of Asthma
This article highlights our work
toward the identification of a potent, selective, and efficacious
acidic mammalian chitinase (AMCase) inhibitor. Rational design, guided
by X-ray analysis of several inhibitors bound to human chitotriosidase
(hCHIT1), led to the identification of compound <b>7f</b> as
a highly potent AMCase inhibitor (IC<sub>50</sub> values of 14 and
19 nM against human and mouse enzyme, respectively) and selective
(>150× against mCHIT1) with very good PK properties. This
compound dosed once daily at 30 mg/kg po showed significant anti-inflammatory
efficacy in HDM-induced allergic airway inflammation in mice, reducing
inflammatory cell influx in the BALF and total IgE concentration in
plasma, which correlated with decrease of chitinolytic activity. Therapeutic
efficacy of compound <b>7f</b> in the clinically relevant aeroallergen-induced
acute asthma model in mice provides a rationale for developing AMCase
inhibitor for the treatment of asthma
Achieving thoracic oncology data collection in Europe: a precursor study in 35 countries
Background: A minority of European countries have participated in international comparisons with high level data on lung cancer. However, the nature and extent of data collection across the continent is simply unknown, and without accurate data collection it is not possible to compare practice and set benchmarks to which lung cancer services can aspire.
Methods: Using an established network of lung cancer specialists in 37 European countries, a survey was distributed in December 2014. The results relate to current practice in each country at the time, early 2015. The results were compiled and then verified with co-authors over the following months.
Results: Thirty-five completed surveys were received which describe a range of current practice for lung cancer data collection. Thirty countries have data collection at the national level, but this is not so in Albania, Bosnia-Herzegovina, Italy, Spain and Switzerland. Data collection varied from paper records with no survival analysis, to well-established electronic databases with links to census data and survival analyses.
Conclusion: Using a network of committed clinicians, we have gathered validated comparative data reporting an observed difference in data collection mechanisms across Europe. We have identified the need to develop a well-designed dataset, whilst acknowledging what is feasible within each country, and aspiring to collect high quality data for clinical research.</p