Jove
Visualize
Contact Us

Related Concept Videos

Cancer Survival Analysis01:21

Cancer Survival Analysis

Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
Comparing the Survival Analysis of Two or More Groups01:20

Comparing the Survival Analysis of Two or More Groups

Survival analysis is a cornerstone of medical research, used to evaluate the time until an event of interest occurs, such as death, disease recurrence, or recovery. Unlike standard statistical methods, survival analysis is particularly adept at handling censored data—instances where the event has not occurred for some participants by the end of the study or remains unobserved. To address these unique challenges, specialized techniques like the Kaplan-Meier estimator, log-rank test, and Cox...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Genetic dissection of host immune response in pneumonia development and progression.

Scientific reports·2016
Same author

Associations between ghrelin and ghrelin receptor polymorphisms and cancer in Caucasian populations: a meta-analysis.

BMC genetics·2014
See all related articles
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Meta-analysis in cancer genetics.

Noel A Pabalan1

  • 1College of Natural Sciences, Saint Louis University, Baguio, Philippines. npabalan@alumni.yorku.ca.

Asian Pacific Journal of Cancer Prevention : APJCP
|July 3, 2010
PubMed
Summary

Meta-analysis combines genetic data to resolve conflicting findings in cancer genetics studies. This approach increases sample sizes, enhancing the power to detect associations and inform public health strategies.

Area of Science:

  • Genetics
  • Cancer Epidemiology
  • Biostatistics

Background:

  • Genetic association studies often yield conflicting results.
  • Large sample sizes are necessary to attribute cancer to single gene variants.
  • Meta-analysis offers a robust method to synthesize data from multiple genetic studies.

Purpose of the Study:

  • To objectively quantify and summarize findings from genetic association studies in cancer.
  • To highlight the utility of meta-analysis in overcoming sample size limitations in primary research.
  • To evaluate the impact of genetic polymorphisms on cancer incidence from a public health perspective.

Main Methods:

  • Systematic combination of data from multiple genetic association studies.
  • Assessment of heterogeneity and publication bias using graphical and statistical methods.

Related Experiment Videos

  • Sensitivity analysis to evaluate the tenability of overall and subgroup associations.
  • Main Results:

    • Meta-analysis significantly increases sample sizes, enhancing statistical power.
    • Evaluation of heterogeneity and publication bias is crucial for reliable summary effects.
    • Subgroup analyses may reveal different associations compared to overall effects.

    Conclusions:

    • Meta-analysis is a powerful tool for resolving discrepancies in cancer genetics research.
    • Even weak genetic associations can have public health significance due to population-level incidence changes.
    • There is a notable increase in Asian meta-analytic publications in cancer genetics, particularly from China since 2008.