Article
Comparability of serum folate concentration measured by a microbiological method, LC-MS/MS and immunoassay.
Research record from Ann Clin Biochem, 2026-09-01. PMID 42678365.
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Article
Research record from Ann Clin Biochem, 2026-09-01. PMID 42678365.
Article
Research record from J Clin Microbiol, 2026-09-25. PMID 42788736.
Article
Research record from Alzheimers Dement (Amst), 2026-07-09. PMID 42434607.
Indicators
A protein complex composed of 18 complement component 1q (C1q) subcomponent chains: six C1qA, six C1qB and six C1qC. The C1q complex is part of the complement component C1 complex (C1 complex) and undergoes confirmational rearrangement following binding of pentraxins or antigen-antibody complexes that include either immunoglobulin M (IgM) or several IgG molecules. These confirmational changes activate the C1r chains of the C1 complex, which, in turn, cleaves C1s chains of the C1 complex. Following C1s cleavage, the C1 complex can proteolytically activate C2 and C4 and promotes formation of C3-convertase, which cleaves C3 and activates the classical complement pathway.
Indicators
A heterotrimeric protein complex composed of complement component 8 (C8) chains alpha, beta and gamma. The alpha and gamma chains form a disulfide-linked dimer that is noncovalently associated with the beta chain. C8 inserts itself into target cell membranes following formation of the C5b-6-7 complex and then recruits 10-16 molecules of C9 to complete the formation of the membrane attack complex.
Glossary Term
A range of values for a parameter that may contain the parameter and the degree of confidence that it is in fact there.
Article
Research record from J Anal Toxicol, 2026-05-01. PMID 41942107.
Glossary Term
A sequence pattern derived from the alignment of multiple sequences that represents the nucleotide or amino acid most likely to occur at each position in a sequence.
Glossary Term
The presence of any substance or organism that makes a preparation impure.
Article
Research record from J Ophthalmic Inflamm Infect, 2026-04-25. PMID 42033534.
Tests
A relative measurement (ratio or percentage of the conventional T-lymphocytes to leukocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Glossary Term
Variation in the number of copies of a particular sequence within the genetic material of an individual. Large-scale copy number polymorphisms are common and widely distributed in the human genome.