Complement C4a is part of the Complement C4 family. The testing for C4a can help determine if a deficiency or abnormality is a contributing factor to increased infections or increased …

Jul 6, 2021 · WHAT DOES IT MEAN IF YOUR COMPLEMENT C4A RESULT IS TOO LOW? Lower-than-normal complement C4 values could indicate: – bacterial infections. – hepatitis. – …

Complement C4-A is a kind of the Complement component 4 protein that in humans is encoded by the C4A gene. [5] This gene encodes the acidic form of complement factor 4, part of the …

Aug 1, 2024 · This brief overview seeks to clarify the difference between C4A and C4a and to aid in the interpretation of the C4A and C4a changes observed in psychosis. The complement …

Aug 20, 2017 · Complement proteins C3 and C4 are commonly measured in patients with SLE, but their serum levels do not necessarily reflect complement activation. Cell-bound …

C4A is named after its acidity and migrates faster in agarose gel electrophoresis as compared to C4B that is basic and migrates slower (47–51). In addition, C4A and C4B are highly …

The fourth component of human complement (C4), an essential factor of the innate immunity, is represented as two isoforms (C4A and C4B) in the genome. Although these genes differ only …

Elevated levels of C4a, a fragment of the complement protein C4, can be a sign of increased immune system activity, often occurring in response to inflammation, infection, or autoimmune …

Homozygous deficiencies of complement C4A or C4B are detected in 1–10% of populations. In genome-wide association studies C4 deficiencies are missed because the genetic variation of …

Clinical resource with information about Complement component 4a deficiency and its clinical features, C4A, available genetic tests from US and labs around the world and links to practice …