Related Experiment Video
Updated: Feb 4, 2026
09:08
Developing a Salivary Antibody Multiplex Immunoassay to Measure Human Exposure to Environmental Pathogens
Published on: September 12, 2016
9.2K
Simultaneous Viral Exposure and Protection from Neanderthal Introgression
Emilia Huerta-Sánchez1, Fergal P Casey2
1Brown University, Ecology and Evolutionary Biology and Center for Computational and Molecular Biology, Providence, RI 02912, USA.
Cell
|October 6, 2018
Summary
Genetic traces in human genomes may reveal adaptations to ancient viral epidemics, potentially stemming from interactions with Neanderthal hominins. This research underscores the evolutionary impact of infectious diseases on human genetics.
Area of Science:
- Evolutionary biology
- Paleogenomics
- Infectious disease evolution
Background:
- Human genomes contain a record of past selective pressures.
- Archaic hominins, like Neanderthals, co-existed with early modern humans.
- Viral epidemics have historically posed significant threats to human populations.
Purpose of the Study:
- To investigate the potential for genetic remnants of ancient viral epidemics within the human genome.
- To explore the role of archaic hominin interactions in shaping human genetic adaptations to pathogens.
Main Methods:
- Analysis of genomic data for specific genetic signatures.
- Comparative genomics between modern humans and archaic hominins.
- Modeling of pathogen-driven selective pressures.
Main Results:
- Identification of potential genetic adaptations linked to historical viral exposure.
- Evidence suggesting a possible contribution of archaic hominin-derived pathogens to human genetic evolution.
- Demonstration of infectious agents as potent evolutionary forces.
Conclusions:
- Past viral epidemics, possibly influenced by archaic hominin interactions, have left detectable genetic marks on the human genome.
- Understanding these ancient adaptations provides insights into human resilience and evolution in response to infectious diseases.
- Genomic analysis is a powerful tool for reconstructing evolutionary history shaped by pathogens.
More Related Videos
08:20Simultaneous Application of Transcranial Direct Current Stimulation during Virtual Reality Exposure
Published on: January 18, 2021
4.5K
11:24Measuring DNA Damage and Repair in Mouse Splenocytes After Chronic In Vivo Exposure to Very Low Doses of Beta- and Gamma-Radiation
Published on: July 3, 2015
11.5K
Related Concept Videos
00:56Viral Structure
74.6K
Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
74.6K
00:57Viral Recombination
25.2K
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
25.2K
02:31Protection of Alcohols
8.1K
This lesson delves into the concept of protection and deprotection of a functional group fundamental to synthetic organic chemistry. These phenomena are explained in the context of aliphatic and aromatic alcohols.
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
Protection
It defines a protecting group as the masking agent to make the more reactive species inert to a given set of conditions. This concept is depicted via the illustration of liquid flow through different outlets in an assembly of pipes. The analogy helps to understand the role...
8.1K
01:16Zones of Protection
808
In power systems, the entire setup is divided into protective zones to isolate faults and protect the rest of the network. These zones include generators, transformers, buses, transmission lines, distribution lines, and motors. Each zone can be visualized as a separate room in a house, with each room protected by its own circuit breaker.
Protective zones are defined by closed dashed lines, containing one or more components. A key characteristic of these zones is the strategic placement of...
Protective zones are defined by closed dashed lines, containing one or more components. A key characteristic of these zones is the strategic placement of...
808
01:23Radial System Protection
445
Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system.
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
445
01:27Protecting Self-Esteem
213
Self-esteem, a central component of psychological well-being, is actively maintained through various cognitive and behavioral strategies. Individuals employ specific mechanisms to preserve a positive self-concept and mitigate threats to their self-worth, particularly in contexts involving social evaluation or personal feedback. Four primary techniques are commonly used to sustain self-esteem.Manipulating AppraisalsOne prominent strategy involves manipulating appraisals from others. Individuals...
213