reactant

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Related to Acute phase reactant: negative acute phase reactant

reactant

a substance that participates in a chemical reaction, esp a substance that is present at the start of the reaction

Reactant

 

a technical term for any of the substances that enter into a chemical reaction. Reactants used in laboratory work are called chemical reagents.

reactant

[rē′ak·tənt]
(chemistry)
A substance that reacts with another one to produce a new set of substances (products).
References in periodicals archive ?
Elevation of acute phase reactants is useful for the diagnosis and for defining disease activity (6).
This latter group, the opsonophagocytic family of C-type lectins, functions predominantly as acute phase reactants.
This finding lends further support to the fact that hs-CRP is a good and biologically stable predictor of future MI despite the fact that it is an acute phase reactant, providing that the patient is not suffering from an active infection or using a drug that affects hs-CRP concentration.
This study showed similar results with measurement of serum amyloid A protein, another very sensitive acute phase reactant.
All four patients experienced a sizable reduction in daily patient diary scores and acute phase reactant levels.
LDL, which contains apolipoprotein B, is a negative acute phase reactant and is induced by inflammation (13,14) such as with traumatic bone fractures.
An ACR 20 response requires a greater than or equal to 20% reduction in swollen joint count, a greater than or equal to 20% reduction in tender joint count and a greater than or equal to 20% improvement in three out of five of the following: patient's assessment of pain, patient's assessment of disease activity, investigator's assessment of disease activity, acute phase reactant (CRP) and patient's assessment of functional status (HAQ score).
ACR20 score means that a patient had a 20% improvement in tender and swollen joint count plus 20% improvement in at least 3 of 5 of the following criteria: patient pain assessment, physician global assessment, patient global assessment, patient self-assessed disability and acute phase reactant.
Recently, it has been shown that CRP and serum amyloid A (SAA), another nonspecific acute phase reactant, have a useful prognostic utility in patients with MI (3), unstable angina, or non-Q wave MI (4-6).
05) in the levels of the acute phase reactant C-reactive protein, an objective measure of disease activity.

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