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Related Concept Videos

Alcohols from Carbonyl Compounds: Grignard Reaction02:00

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Grignard reagents are one of the most commonly used reagents used to synthesize alcohols from carbonyl compounds. Grignard reagents are organomagnesium halides with a highly polar carbon–magnesium bond. Due to the partial ionic nature of the C–Mg bond, the carbon functions as a strong nucleophile and attacks electrophiles like carbonyl carbon.
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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
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Some researchers gain access to large amounts of data without interacting with a single research participant. Instead, they use existing records to answer various research questions. This type of research approach is known as archival research. Archival research relies on looking at past records or data sets to look for interesting patterns or relationships. For example, a researcher might access the academic records of all individuals who enrolled in college within the past ten years and...
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The reaction of an ester with a Grignard reagent, followed by hydrolysis of the magnesium alkoxide salt in aqueous acid, yields a tertiary alcohol. In the case of formate esters, secondary alcohols are formed.
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Today, scientists agree that good research is ethical in nature and is guided by a basic respect for human dignity and safety. However, this has not always been the case. Modern researchers must demonstrate that the research they perform is ethically sound.
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GRAPPA 2019 Research Recipient Awards Report.

Arthur Kavanaugh1, Alla Ishchenko2, Rik J Lories2

  • 1A. Kavanaugh, MD, Professor of Medicine, University of California, San Diego, California, USA; akavanaugh@health.ucsd.edu.

The Journal of Rheumatology. Supplement
|June 2, 2021
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Summary
This summary is machine-generated.

Researchers explored metabolomics for diagnosing and tracking psoriasis and psoriatic arthritis. They also investigated CCR6 and CCL20 as potential therapeutic targets for psoriatic arthritis.

Keywords:
GRAPPAcytokinespsoriasispsoriatic arthritis

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Area of Science:

  • Rheumatology
  • Dermatology
  • Immunology

Background:

  • Psoriasis and psoriatic arthritis are chronic inflammatory conditions.
  • Identifying reliable biomarkers for diagnosis and progression is crucial.
  • Targeting specific molecular pathways may offer new therapeutic strategies.

Purpose of the Study:

  • To investigate the role of metabolomics in the diagnosis, severity, and progression of psoriasis and psoriatic arthritis.
  • To conduct a 2-year prospective pilot study on metabolomic profiling.
  • To perform preclinical analysis of CCR6 and CCL20 in joints as potential therapeutic targets for psoriatic arthritis.

Main Methods:

  • Prospective pilot study utilizing metabolomic analysis over two years.
  • Preclinical investigation of chemokine receptor CCR6 and ligand CCL20 in mouse and human joints.
  • Assessment of biomarkers related to disease diagnosis, severity, and progression.

Main Results:

  • Metabolomic profiles were analyzed in relation to disease status.
  • The study identified potential associations between metabolites and disease characteristics.
  • Preclinical data on CCR6 and CCL20 pathways were gathered for therapeutic targeting.

Conclusions:

  • Metabolomics shows promise as a tool for understanding and managing psoriasis and psoriatic arthritis.
  • Further research into CCR6 and CCL20 may lead to novel treatments for psoriatic arthritis.