Lps Exposure
Lps Exposure - Related Videos
08:51
Intraductal Injection of LPS as a Mouse Model of Mastitis: Signaling Visualized via an NF-κB Reporter Transgenic
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Cited by 14 •
2012
Described here is a technique in which lipopolysaccharide is injected into the lactating mouse mammary gland via the nipple to simulate mastitis, a condition commonly caused by bacterial infection. Lipopolysaccharide injection results in increased nuclear factor kappa B (NF-κB) signaling, visualized through bioluminescent imaging of an NF-κB luciferase reporter mouse.
09:08
Developing a Salivary Antibody Multiplex Immunoassay to Measure Human Exposure to Environmental Pathogens
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Cited by 11 •
2016
In the current climate of scarce resources, new technologies are emerging that allow researchers to conduct studies cheaper, faster and with more precision. Here we describe the development of a bead-based salivary antibody multiplex immunoassay to measure human exposure to multiple environmental pathogens simultaneously.
10:11
Whole-Body Nanoparticle Aerosol Inhalation Exposures
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Cited by 51 •
2013
A whole-body nanoparticle aerosol inhalation exposure facility was constructed for nano-sized titanium dioxide (TiO2) inhalation toxicology studies. This system provides nano-TiO2 aerosol test atmospheres that have: 1) a steady mass concentration; 2) a homogenous composition free of contaminants; and 3) a stable particle size distribution during aerosol generation.
02:09
Synaptic Modulation in Drosophila After Exposure to Prolonged Light
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2025
This video demonstrates the rearing of Drosophila melanogaster under specific light conditions to study the role of Bruchpilot proteins in neurotransmitter release and the resulting modulation of synaptic activity.
08:30
X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
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Cited by 2 •
2011
We are developing a dynamic adaptive exposure technique using our scanning beam digital X-ray system. Rather than exposing an object uniformly, the exposure is adapted depending on the opacity of the object. Here we show an experiment on an anthropomorphic phantom that resulted in a dose saving of 30%.
FAQs
The CD14–MD-2–TLR4 complex serves as the recognition and signaling gateway for LPS. Detection at this receptor assembly initiates intracellular signaling, which then promotes production of inflammatory cytokines and other immune mediators. This links recognition of a bacterial component to a measurable innate immune response and provides a mechanistic framework for studying inflammation.
Exposure in tissues and exposure in circulation represent different experimental contexts. Tissue entry can be examined in relation to tissue-associated immune activation, whereas circulation is relevant to systemic immune activation. This distinction matters because an immune response that helps identify or contain infection can become harmful when inflammatory signaling becomes excessive.
Inflammatory cytokines and other immune mediators are important downstream readouts of LPS-triggered signaling. Their production shows that receptor detection has progressed into an active innate immune response, while excessive mediator production helps indicate potentially damaging inflammation. Tracking these outputs therefore connects molecular recognition with the broader consequences of exposure.
Controlled LPS exposure gives researchers a defined experimental context for examining innate immune activation. By studying the resulting cytokines and other mediators, investigators can characterize inflammatory responses and host-pathogen interactions. The approach is especially useful when the goal is to isolate immune consequences associated with a component of Gram-negative bacteria.
LPS exposure helps host-pathogen studies focus on how the host detects and responds to a component associated with Gram-negative bacteria. The resulting signaling and inflammatory mediator production provide a way to characterize innate immune activation during infection-related research. Such studies can clarify how protective responses may shift toward harmful inflammation.
In sepsis and endotoxemia research, controlled LPS exposure models aspects of systemic immune activation associated with endotoxin. It allows investigators to examine how inflammatory signaling and mediator production relate to excessive inflammation, without claiming that the model reproduces every feature of infection. Findings can therefore help frame questions about when host defense becomes damaging.
Studying LPS-driven systemic activation can guide several research directions: identifying biomarkers of inflammatory states, investigating therapeutic targets, and evaluating strategies for regulating excessive immune activation. These goals extend beyond describing receptor signaling. They use the exposure model to connect a defined innate stimulus with questions about controlling inflammation while preserving the value of host defense.