Blood Meal Exposure
Blood Meal Exposure - Related Videos
09:05
Meal Duration as a Measure of Orofacial Nociceptive Responses in Rodents
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Cited by 3 •
2014
A lengthening in meal duration represents orofacial nociceptive behavior in rodents similar to the guarding behavior of humans with orofacial pain. Eating is a behavior that requires no training or animal manipulation, requires cortical participation, and is not competing with other experimentally induced behaviors, distinguishing this assay from alternative reflex or operant measurements.
08:09
Preparation and Testing of Plant Seed Meal-based Wood Adhesives
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Cited by 15 •
2015
To facilitate the effort in seeking more economic and environment-friendly formulations of natural product-based wood adhesives, this work demonstrates the preparation and testing of plant seed-based wood adhesives. This protocol allows one to assess plant seed-based agricultural products as suitable candidates for the substitution of synthetic-based wood adhesives.
09:42
Feeding and Quantifying Animal-Derived Blood and Artificial Meals in Aedes aegypti Mosquitoes
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Cited by 17 •
2020
The goal of this protocol is to deliver animal-derived and artificial blood meals to Aedes aegypti mosquitoes through an artificial membrane feeder and precisely quantify the volume of meal ingested.
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.
FAQs
Host antibodies, complement proteins, and heme are central signals in the gut after feeding. Antibodies and complement represent immune factors carried into the meal, whereas heme reflects blood digestion and can alter gut physiology. Examining their combined effects helps explain why the same blood meal may influence vector immunity and infectious-agent survival in different ways.
Heme links blood digestion with changes in gut physiology. As blood components are processed, heme can influence the conditions experienced by infectious agents and resident microbial communities. This makes heme relevant to studies of pathogen maintenance and transmission, because its effects may connect the nutritional consequences of feeding with immune and microbial responses inside the vector.
Antibodies and complement enter the arthropod gut with vertebrate blood and provide a temporary source of host immune activity. Their presence allows researchers to examine how vertebrate defenses interact with vector biology rather than viewing infection as a vector-only process. These interactions may affect pathogen survival and help clarify determinants of transmission.
A useful analysis follows the process from ingestion to gut digestion, then considers how heme and host immune factors influence the local environment. Researchers can next evaluate consequences for vector immunity, microbial communities, and infectious-agent survival. Connecting these stages is important because transmission-related outcomes arise from interactions among digestion, immunity, and infection rather than from feeding alone.
These studies help connect conditions in the arthropod gut with the ability to acquire, maintain, and transmit an infection. By examining how host-derived signals affect pathogen survival and the vector's immune environment, researchers can identify biological influences on vector competence. Such information supports efforts to understand where infection cycles may be interrupted.
The process provides a model for studying communication between vertebrate immunity, arthropod physiology, infectious agents, and microbial communities. It shows how host immune factors can persist long enough to influence events beyond the original feeding interaction. This context supports research on pathogen transmission and on strategies designed to disrupt infection cycles through changes in vector-associated processes.