Some pathogens hide inside human cells to enhance their survival. Researchers at the University of Basel, have uncovered a unique tactic certain bacteria use to spread in the body without being detected by the immune system. ...
Cell & Microbiology
Apr 22, 2024
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13
Long-term, low-dose exposure to per- and polyfluoroalkyl substances, also known as PFAS or forever chemicals, can hinder the immune system, interfere with hormones, and reduce the effectiveness of vaccines. It can also cause ...
Environment
Apr 22, 2024
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1
A heart attack will leave a permanent scar on a human heart, yet other animals, including some fish and amphibians, can clear cardiac scar tissue and regrow damaged muscle as adults.
Plants & Animals
Apr 19, 2024
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58
Researchers have revealed the regulatory mechanism of a specific protein that plays a key role in balancing the immune response triggered by viral infections in mammal cells. These findings could help drive the development ...
Cell & Microbiology
Apr 18, 2024
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20
Researchers from IE Business School and Indian Institute of Management Shillong have published a new study that examines why certain consumers are averse to products using a novel technology and what strategies marketers ...
Economics & Business
Apr 16, 2024
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1
A recent UCLA study demonstrates a new process for screening T cells, part of the body's natural defenses, for characteristics vital to the success of cell-based treatments. The method filters T cells based on the receptor ...
Bio & Medicine
Apr 15, 2024
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46
A paper published in PLoS Pathogens, titled "Mapping the functional form of the trade-off between infection resistance and reproductive fitness under dysregulated immune signaling," delves into the microscopic realm and unravels ...
Plants & Animals
Apr 5, 2024
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55
A study led by a researcher at the University of Stirling has identified microscopic organisms that may be crucial to the survival of coral reefs.
Ecology
Apr 5, 2024
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27
A team of bioengineers at Instituto Gulbenkian de Ciência, in Portugal, has found that inactivating the Tgfbr1 gene in mouse embryos results in altered development in the trunk to tail region.
The Uchida Laboratory of Innovation Center of NanoMedicine has demonstrated that intradermal administration of mRNA alone (naked mRNA) without protection by nanoparticles induced robust vaccination against SARS CoV-2, a virus ...
Bio & Medicine
Apr 3, 2024
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18
Immunity is a biological term that describes a state of having sufficient biological defenses to avoid infection, disease, or other unwanted biological invasion. Immunity involves both specific and non-specific components. The non-specific components act either as barriers or as eliminators of wide range of pathogens irrespective of antigenic specificity. Other components of the immune system adapt themselves to each new disease encountered and are able to generate pathogen-specific immunity.
Adaptive immunity is often sub-divided into two major types depending on how the immunity was introduced. Naturally acquired immunity occurs through contact with a disease causing agent, when the contact was not deliberate, whereas artificially acquired immunity develops only through deliberate actions such as vaccination. Both naturally and artificially acquired immunity can be further subdivided depending on whether immunity is induced in the host or passively transferred from a immune host. Passive immunity is acquired through transfer of antibodies or activated T-cells from an immune host, and is short lived, usually lasts only a few months, whereas active immunity is induced in the host itself by antigen, and lasts much longer, sometimes life-long. The diagram below summarizes these divisions of immunity.
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