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Related Concept Videos

Biological Effects of Radiation02:59

Biological Effects of Radiation

All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they produce ions...
Types of Toxins01:36

Types of Toxins

Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Toxic Reactions: Overview01:26

Toxic Reactions: Overview

When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Nuclear Power02:36

Nuclear Power

Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
Nucleotide Excision Repair01:38

Nucleotide Excision Repair

DNA Distortion and Damage
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Nucleotide Excision Repair01:08

Nucleotide Excision Repair

Overview

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[Early medical consequences of the radiation accidents in the former USSR Territory].

Meditsina truda i promyshlennaia ekologiia·2012
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[Establishment of the radiation etiopathogenesis of neurological syndromes and symptoms:summary and sources of mistakes].

Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova·2008
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[M. N. Livanov's studies on the consequences of exposure to ionizing radiation].

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[Clinical evaluation of tolerance and efficiency of Cinkocin medication for human incorporation of plutonium and americium].

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Related Experiment Video

Updated: May 16, 2026

An Automated Microscopic Scoring Method for the γ-H2AX Foci Assay in Human Peripheral Blood Lymphocytes
08:23

An Automated Microscopic Scoring Method for the γ-H2AX Foci Assay in Human Peripheral Blood Lymphocytes

Published on: December 25, 2021

[Health consequences in overexposed persons after the Chernobyl accident: basic resume and unsolved problems].

A K Gus'kova, V I Krasniuk

    Meditsina Truda I Promyshlennaia Ekologiia
    |December 6, 2012
    PubMed
    Summary

    The Chernobyl accident in 1986 led to significant health consequences, notably an increase in leukemia. Ongoing research and supervision are crucial for affected populations.

    Related Experiment Videos

    Last Updated: May 16, 2026

    An Automated Microscopic Scoring Method for the γ-H2AX Foci Assay in Human Peripheral Blood Lymphocytes
    08:23

    An Automated Microscopic Scoring Method for the γ-H2AX Foci Assay in Human Peripheral Blood Lymphocytes

    Published on: December 25, 2021

    Area of Science:

    • Environmental Health
    • Radiation Epidemiology
    • Public Health

    Context:

    • The 1986 Chernobyl nuclear disaster exposed large populations to ionizing radiation.
    • Long-term health effects of radiation exposure remain a critical area of study.
    • Understanding the health impact is vital for public health policy and medical surveillance.

    Purpose:

    • To generalize research findings on the health consequences of the Chernobyl accident.
    • To estimate the health outcomes in exposed populations.
    • To outline principles for the ongoing medical supervision of affected individuals.

    Summary:

    • Generalizes research data on health consequences following the 1986 Chernobyl disaster.
    • Estimates the specific health impacts and outlines supervision principles for affected groups.
    • Highlights a notable increase in leukemia incidence among those affected.

    Impact:

    • Informs long-term health monitoring strategies for populations exposed to radiation.
    • Contributes to the understanding of radiation-induced health risks, particularly leukemia.
    • Provides a basis for public health interventions and medical management following nuclear accidents.