2024年10月24日 · What do high levels of C4 mean? High C4 protein levels may mean you’re recovering from an infection or illness. If you’re getting treatment for an autoimmune disease, high C4 typically means treatment is working.

2024年2月25日 · There are several reasons why you might have high complement C4 levels over 45 milligrams per deciliter. If you have had a recent injury or infection, you’re likely to have more C4 in your...

2019年7月3日 · The complement component 4 (C4) assay is a test used to detect the quantity of C4 complements present in human serum or plasma. Know what are the conditions caused by high complement c4 levels and even get the interpretation of results

2022年12月15日 · Complement C4 is a protein that is important for your immune function. It helps clear infections and protects against autoimmunity. Low levels may point to autoimmune disease, including lupus. High levels are rare, poorly understood, and may signal inflammation. Read on to find out more about the C4 test. What is Complement C4?

Possible causes of elevated complement levels include: cancer, viral infections, non-alcoholic fatty liver disease, metabolic syndrome, obesity, diabetes, heart disease, autoimmunity (psoriasis, ulcerative colitis). I would recommend further work-up only based on worsening clinical symptoms and then targeted to those specific clinical symptoms.

2021年7月6日 · WHAT DOES IT MEAN IF YOUR COMPLEMENT C4A RESULT IS TOO HIGH? If your results show higher than normal amounts or increased activity of complement proteins, it may mean you have one of the following conditions: – Certain types of cancer, such as leukemia or non-Hodgkin lymphoma. – Levels will be increased in …

One of the diseases that commonly involves abnormal C4 levels is systemic lupus erythematosus, or lupus, an autoimmune disorder. Why do I need this test? You may need this test if your healthcare provider suspects you have an autoimmune disorder, especially lupus. Symptoms of lupus may include:

2021年1月7日 · The complement component 4 (C4) test is a simple blood test that measures the amount of complement C4 circulating in your bloodstream. A low level of C4 is associated with...

2025年2月4日 · A high C4 level indicates inflammatory conditions or infections. Furthermore, elevated levels often signal an active immune response. Doctors interpret C4 values alongside C3 levels.

补体C4通过参与早期抗感染免疫，维持机体内环境稳定，参与适应性免疫应答以及参与凝血系统等生物学过程，可用于疾病炎症反应的监测，以及机体内环境、凝血功能等指标监测手段。 补体C4是广泛存在于血清，组织液以及细胞表面的一种蛋白，广泛的参与机体的免疫调节与炎症反应。 因此补体C4偏高，可提示免疫系统紊乱，机体炎症反应发生。 补体C4通过参与早期抗感染免疫，维持机体内环境稳定，参与适应性免疫应答以及参与凝血系统等生物学过程，可用于疾病炎 …