Publications by authors named "Colleen Castro"

The Food and Drug Administration (FDA) encourages the assessment of patient-reported outcomes (PROs) in oncology clinical trials. A 2015 review showed that approximately 26% of industry-sponsored oncology trials included assessment of PROs. However, the proportion of recent trials that supported new oncology drug approvals and assessed PROs is unknown.

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A clinically relevant inhibitor for Heptosyltransferase I (HepI) has been sought after for many years because of its critical role in the biosynthesis of lipopolysaccharides on bacterial cell surfaces. While many labs have discovered or designed novel small molecule inhibitors, these compounds lacked the bioavailability and potency necessary for therapeutic use. Extensive characterization of the HepI protein has provided valuable insight into the dynamic motions necessary for catalysis that could be targeted for inhibition.

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Background: To identify and describe the breast cancer-specific health-related quality of life (HRQoL) instruments with evidence of validation in the breast cancer population for potential use in patients treated for breast cancer (excluding surgery).

Methods: We conducted a systematic literature review using PubMed, Embase, and PsycINFO databases to identify articles that contain psychometric properties of HRQoL instruments used in patients with breast cancer. Relevant literature from January 1, 2009, to August 19, 2019, was searched.

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Article Synopsis
  • - Drosophila sechellia, a fruit fly native to the Seychelles, has adapted to eat the toxic fruit of Morinda citrifolia by developing resistance to its harmful compounds, octanoic and hexanoic acids.
  • - Research is focused on how D. sechellia has evolved resistance specifically to hexanoic acid, as previous studies have primarily tackled octanoic acid resistance.
  • - By exposing D. sechellia and related species to hexanoic acid and analyzing their gene expression, the study found that while generalist flies activated many detoxification genes, D. sechellia downregulated immune-related genes, revealing unique adaptations to its specialized diet.
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The multistep synthesis of a novel ADP-7-azido-7-deoxy-l--β-d--heptopyranoside and several analogues as heptosyltransferase ligands is described. The synthesis of the key intermediate heptoside-1-β-phosphate involved a β-stereoselective phosphorylation of lactol employing diallyl chlorophosphate as a phosphorylating reagent. Five deprotected nucleotide sugars were generated by this synthetic sequence and evaluated as heptosyltransferase substrates (, ).

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