Blood Stimulation
Blood Stimulation - Related Videos
06:29
Accurate and Simple Measurement of the Pro-inflammatory Cytokine IL-1β using a Whole Blood Stimulation Assay
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Cited by 9 •
2011
We describe a simple immunoassay to measure the production of pro-inflammatory cytokines, such as IL-1 beta production, in patients presenting with autoinflammatory phenotypes. By activating cells in whole blood cultures with pathogen-associated molecular patterns, specifically with lipopolysaccharide, cytokine secretion can be conveniently evaluated in whole blood supernatants.
11:02
Combining Transcranial Magnetic Stimulation and fMRI to Examine the Default Mode Network
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Cited by 17 •
2010
In this article, we examine the methodology and considerations relevant to the combination of TMS and fMRI to examine the effects of brain stimulation on the default network.
11:55
Induction of Alloantigen-specific Anergy in Human Peripheral Blood Mononuclear Cells by Alloantigen Stimulation with Co-stimulatory Signal Blockade
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Cited by 9 •
2011
This paper describes a simple technique to induce alloantigen-specific anergy in human peripheral blood mononuclear cells. The technique can be applied clinically to generate non-alloreactive donor cells. Infusion of these cells could improve immune reconstitution and reduce toxicity after allogeneic hematopoietic stem cell transplantation.
08:40
Improved Method for the Preparation of a Human Cell-based, Contact Model of the Blood-Brain Barrier
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Cited by 16 •
2013
Establishment of human models of the blood-brain barrier (BBB) can benefit research into brain conditions associated with BBB failure. We describe here an improved technique for preparation of a contact BBB model, which permits coculturing of human astrocytes and brain endothelial cells on the opposite sides of a porous membrane.
12:09
Stimulating the Lip Motor Cortex with Transcranial Magnetic Stimulation
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Cited by 29 •
2014
Transcranial magnetic stimulation (TMS) has proven to be a useful tool in investigating the role of the articulatory motor cortex in speech perception. This article describes how to record motor evoked potentials (MEPs) from the lip muscles and how to disrupt the motor lip representation using repetitive TMS.
FAQs
These stimuli engage receptors on leukocytes in the blood sample, initiating intracellular signaling pathways. The resulting signals activate immune cells and promote production or release of cytokines, chemokines, and other mediators. Because different stimuli engage different receptor systems, comparing them can reveal how immune cells recognize infection-related signals and organize downstream host responses.
Response patterns can vary with the type of stimulus and the immune-cell receptors it engages. Microbial antigens, pathogen-associated molecular patterns, and other immunomodulatory signals may therefore produce different mediator profiles. Comparing these profiles across experimental conditions helps investigators identify factors that regulate immune activation and distinguish variations in host responsiveness.
Each readout captures a different aspect of the response. Immunoassays quantify released immune mediators, flow cytometry characterizes cellular responses, and gene-expression analyses examine changes in transcriptional activity. Using one or more of these approaches allows researchers to connect mediator production with cellular or molecular changes, producing a more informative profile of immune function.
A typical workflow begins with whole blood or a blood-derived sample, followed by exposure to a selected microbial antigen, pathogen-associated molecular pattern, or other immunomodulatory signal. Researchers then assess the resulting response with immunoassays, flow cytometry, or gene-expression analysis. The selected stimulus and measurement method should match the immune feature being investigated.
Researchers can select whole blood or a blood-derived sample when they need to examine immune responses in material containing blood-associated immune components. The choice depends on the experimental question and the response measurement planned. This format supports comparisons of host responses across conditions while retaining relevance to infection, inflammation, and broader immune-function studies.
In infection research, stimulated samples can help characterize host responses to microbial antigens or pathogen-associated molecular patterns. In vaccine evaluation, the method can compare immune reactivity under different conditions. It also supports immune profiling and studies of inflammation, providing mediator, cellular, or gene-expression outcomes relevant to innate and adaptive immunity.