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Related Concept Videos

Proteomics01:33

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...
Strategies for Assessing and Addressing Confounding01:25

Strategies for Assessing and Addressing Confounding

Confounding is a critical issue in epidemiological studies, often leading to misleading conclusions about associations between exposures and outcomes. It occurs when the relationship between the exposure and the outcome is mixed with the effects of other factors that influence the outcome. Given that, addressing confounding is of high importance for drawing accurate inferences in research.
Confounding can be addressed at both the design phase of a study and through analytical methods after data...
Confounding in Epidemiological Studies01:27

Confounding in Epidemiological Studies

Confounding in statistical epidemiology represents a pivotal challenge, referring to the distortion in the perceived relationship between an exposure and an outcome due to the presence of a third variable, known as a confounder. This variable is associated with both the exposure and the outcome but is not a direct link in their causal chain. Its presence can lead to erroneous interpretations of the exposure's effect, either exaggerating or underestimating the true association. This phenomenon...
Regulation of Expression at Multiple Steps01:23

Regulation of Expression at Multiple Steps

The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the addition of a...
Pleiotropy01:33

Pleiotropy

Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
Multicompartment Models: Overview01:14

Multicompartment Models: Overview

Multicompartment models are mathematical constructs that depict how drugs are distributed and eliminated within the body. They segment the body into several compartments, symbolizing various physiological or anatomical areas connected through drug transfer processes such as absorption, metabolism, distribution, and elimination.
These models offer a more comprehensive representation of drug behavior in the body than one-compartment models. They accommodate the complexity of drug distribution,...

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Updated: May 9, 2026

Application of Unsupervised Multi-Omic Factor Analysis to Uncover Patterns of Variation and Molecular Processes Linked to Cardiovascular Disease
08:51

Application of Unsupervised Multi-Omic Factor Analysis to Uncover Patterns of Variation and Molecular Processes Linked to Cardiovascular Disease

Published on: September 20, 2024

Controlling for confounding variables in MS-omics protocol: why modularity matters.

Rob Smith, Dan Ventura, John T Prince

    Briefings in Bioinformatics
    |July 30, 2013
    PubMed
    Summary
    This summary is machine-generated.

    Bioinformatics techniques require more rigorous control and detailed descriptions, similar to wet lab methods. Reducing confounding variables in bioinformatics is crucial for reliable mass spectrometry data analysis and hypothesis validation.

    Keywords:
    alignmentclassificationnoise reductionparameter selectionpeak picking

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    Related Experiment Videos

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    Application of Unsupervised Multi-Omic Factor Analysis to Uncover Patterns of Variation and Molecular Processes Linked to Cardiovascular Disease
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    DeepOmicsAE: Representing Signaling Modules in Alzheimer's Disease with Deep Learning Analysis of Proteomics, Metabolomics, and Clinical Data
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    DeepOmicsAE: Representing Signaling Modules in Alzheimer's Disease with Deep Learning Analysis of Proteomics, Metabolomics, and Clinical Data

    Published on: December 15, 2023

    Area of Science:

    • Bioinformatics
    • Computational Biology
    • Mass Spectrometry Data Analysis

    Background:

    • The field of bioinformatics is rapidly expanding, with new techniques constantly being developed.
    • Existing literature often provides thorough details for wet lab protocols but lacks rigor in describing bioinformatics techniques.
    • This disparity can impact the reliability of experimental results.

    Purpose of the Study:

    • To highlight the need for increased rigor and detailed reporting in bioinformatics techniques.
    • To emphasize the importance of controlling variables in bioinformatics, particularly within mass spectrometry experiments.
    • To advocate for improved standardization in the description of computational methods.

    Main Methods:

    • Comparative analysis of reporting standards between wet lab protocols and bioinformatics techniques.
    • Identification of common confounding variables in mass spectrometry-based bioinformatics workflows.
    • Literature review focusing on experimental design and validation in computational biology.

    Main Results:

    • Bioinformatics methods are frequently less controlled and described compared to traditional laboratory techniques.
    • Confounding variables in bioinformatics can significantly affect the accuracy of mass spectrometry data interpretation.
    • Inconsistent reporting hinders the reproducibility and validation of bioinformatics-derived findings.

    Conclusions:

    • There is a critical need to enhance the standardization and rigor of bioinformatics techniques.
    • Implementing stricter controls and detailed descriptions for bioinformatics methods is essential for robust scientific discovery.
    • Improving the reporting of bioinformatics experiments will bolster the reliability of mass spectrometry research and hypothesis testing.