Jove
Visualize
Contact Us
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 Concept Videos

Factors Affecting the Risk of Infection01:26

Factors Affecting the Risk of Infection

13.8K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
13.8K
Conservation of Small Populations02:04

Conservation of Small Populations

17.4K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
17.4K
Reproductive Cloning01:27

Reproductive Cloning

32.8K
Reproductive cloning is the process of producing a genetically identical copy—a clone—of an entire organism. While clones can be produced by splitting an early embryo—similar to what happens naturally with identical twins—cloning of adult animals is usually done by a process called somatic cell nuclear transfer (SCNT).
Somatic Cell Nuclear Transfer
In SCNT, an egg cell is taken from an animal and its nucleus is removed, creating an enucleated egg. Then a somatic...
32.8K
Ethnic Identity within a Larger Culture01:27

Ethnic Identity within a Larger Culture

344
Adolescents from ethnic minority backgrounds face a multifaceted journey in forming their identities, shaped by the intersections of cultural expectations and personal exploration. For these adolescents, identity formation involves not only typical developmental challenges but also navigating the perceptions and attitudes of the majority culture. As they grow, adolescents in ethnic minority groups often become increasingly aware of stereotypes, social biases, and discrimination, all of which...
344
Population Growth00:57

Population Growth

28.7K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
28.7K
Analysis of Population Pharmacokinetic Data01:12

Analysis of Population Pharmacokinetic Data

814
Analysis of population pharmacokinetic data involves studying the behavior of drugs within diverse populations to understand their pharmacokinetic parameters. Traditional pharmacokinetic methods typically involve collecting samples from a few individuals and estimating these parameters. While these methods are commonly used, they have limitations in capturing the variability in drug response among individuals or heterogeneous populations. Population pharmacokinetics is employed to address these...
814

You might also read

Related Articles

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

Sort by
Same author

Association of biological age acceleration with muscle aging phenotype in young and middle-aged adults: a prospective cohort study.

GeroScience·2026
Same author

Trends and Risk Factors of Enterohemorrhagic <i>Escherichia coli</i> Infections in Gyeonggi Province, 2019-August 2025.

Public health weekly report·2026
Same author

Patterns of complementary and alternative medicine use and factors influencing its utilization in thyroid cancer: findings from the MASTER study.

BMC complementary medicine and therapies·2026
Same author

Use of Mendelian Randomization to Unveil Metabolic Markers in <i>Helicobacter pylori</i> Infection.

Journal of Korean medical science·2026
Same author

Efficacy and Safety of Probiotics, Prebiotics, and Synbiotics: An Umbrella Review of Systematic Reviews and Meta-Analysis of Randomized Controlled Trials.

Nutrition reviews·2026
Same author

Longitudinal Mammographic Breast Density Changes and Associated Factors in Older Korean Women.

Radiology. Imaging cancer·2026

Related Experiment Video

Updated: Feb 12, 2026

Changes in Mammary Gland Morphology and Breast Cancer Risk in Rats
09:36

Changes in Mammary Gland Morphology and Breast Cancer Risk in Rats

Published on: October 16, 2010

30.3K

Ethnic Heterogeneity in Reproductive Risk Factors for Breast Cancer, With a Focus on Asian Populations: A

Youjin Hong1,2,3, Soseul Sung1,2,4, Woojin Lim1,2,4

  • 1Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.

Journal of Cancer Prevention
|February 11, 2026
PubMed
Summary

The protective effect of childbirths and high parity against breast cancer (BC) is stronger in Asian women compared to European or American women. Temporal trends in BC risk associated with reproductive factors and family history showed ethnic variations.

Keywords:
AsianBreast cancerMeta-analysisReproductive factorsSystematic review

More Related Videos

Building Up a High-throughput Screening Platform to Assess the Heterogeneity of HER2 Gene Amplification in Breast Cancers
11:34

Building Up a High-throughput Screening Platform to Assess the Heterogeneity of HER2 Gene Amplification in Breast Cancers

Published on: December 5, 2017

13.1K
Performing Data Mining And Integrative Analysis Of Biomarker in Breast Cancer Using Multiple Publicly Accessible Databases
07:41

Performing Data Mining And Integrative Analysis Of Biomarker in Breast Cancer Using Multiple Publicly Accessible Databases

Published on: May 17, 2019

9.6K

Related Experiment Videos

Last Updated: Feb 12, 2026

Changes in Mammary Gland Morphology and Breast Cancer Risk in Rats
09:36

Changes in Mammary Gland Morphology and Breast Cancer Risk in Rats

Published on: October 16, 2010

30.3K
Building Up a High-throughput Screening Platform to Assess the Heterogeneity of HER2 Gene Amplification in Breast Cancers
11:34

Building Up a High-throughput Screening Platform to Assess the Heterogeneity of HER2 Gene Amplification in Breast Cancers

Published on: December 5, 2017

13.1K
Performing Data Mining And Integrative Analysis Of Biomarker in Breast Cancer Using Multiple Publicly Accessible Databases
07:41

Performing Data Mining And Integrative Analysis Of Biomarker in Breast Cancer Using Multiple Publicly Accessible Databases

Published on: May 17, 2019

9.6K

Area of Science:

  • Epidemiology
  • Oncology
  • Genetics

Background:

  • Reproductive factors significantly influence breast cancer (BC) risk.
  • Ethnic variations in BC incidence and risk factors are increasingly recognized.
  • Understanding these differences is crucial for targeted prevention strategies.

Purpose of the Study:

  • To investigate ethnic disparities in the association between reproductive factors and breast cancer risk.
  • To explore temporal trends in these associations using meta-analysis.
  • To compare BC risk across Asian, European, and American populations.

Main Methods:

  • Meta-analysis of epidemiologic studies published up to August 31, 2022.
  • Inclusion of studies examining reproductive factors, family history, and BC risk.
  • Random-effect model used for calculating effect sizes (relative risk [RR] and 95% confidence intervals [CI]).

Main Results:

  • Higher number of childbirths (≥ 2 vs. 1) showed a stronger protective effect against BC in Asians (RR: 0.66) than in Europeans (RR: 0.89) or Americans (RR: 0.91).
  • High parity demonstrated a more pronounced protective effect in Asians (RR: 0.72) compared to Americans (RR: 0.84) and Europeans (RR: 0.81).
  • No significant ethnic differences were observed for combined hormone replacement therapy use; family history associations showed ethnic variation but no temporal change.

Conclusions:

  • Reproductive factors like childbirths and parity exhibit differential associations with breast cancer risk across ethnic groups.
  • Ethnic variations in BC risk may be influenced by the prevalence of reproductive factors and baseline BC hazard.
  • Further research is needed to elucidate the complex interplay of ethnicity, reproductive health, and breast cancer etiology.