The phrase "a primary response in" is correct and usable in written English.
It can be used when discussing the main or most important reaction or answer in a specific context or field.
Example: "The study found that a primary response in patients was a significant reduction in symptoms after treatment."
Alternatives: "a key response in" or "a main reaction in".
In a primary response (in mice primed with PBS), OVA-specific CD8+ T cells appeared at day 5 and reached a peak at day 7.
The signatures of intracellular pathogens, PAMPs, elicit a primary response in the host that is largely driven by the Toll-like receptor (TLR) pathway.
There is no bias of the TCRVβ chain repertoire in naïve TCRVα chain transgenic splenocytes at Day 0 (Additional file 2A), or in a primary response in draining lymph nodes at Day 10 post-immunization as demonstrated by spectratype analysis (Additional file 2B).
A primary response was achieved in 5 episodes, and a secondary response occurred after antibiotic switching, from intraperitoneal cefazolin/ceftazidime to ceftazidime/amikacin or gentamicin in 3 episodes.
As IgM has an important role in inflammation with multivalent antigen binding due to its pentameric structure and as the first immunoglobulin class produced in a primary response to an antigen, lymphatic obstruction may result in a rapid increase in IgM secreting plasma cells.
Interestingly, these studies also revealed that a memory response might be mounted even in the absence of a detectable primary response in seropositive calves.
One of the major limitations of the assay is that the frequency of specific CTL is very low in a primary response and CTL are difficult to activate in vitro.
CD4+ T cell responses provide cross-reactive immunity to different influenza strains even in the absence of significant antibody titers; they have a crucial role in maintaining the effector CD8+ T cell functions during a primary response and they are involved in compensating for CD8+ T cells diminished in cytolytic activity, particularly in older adults [ 7, 8].
This is in contrast to what happens in a primary response, where delta-like 4 is used to suppress Th2 cytokine production [7].
STIL is a primary response gene that is ubiquitously expressed in proliferating cells and in early embryonic development [ 69, 70].
In response to a recall antigen such as influenza vaccine, the effector peak is typically between five to seven days and slightly later in a primary response, with a return to the steady state within 14 days after immunization.
