Used in biomedical research to detect and quantify levels of Human Tyrosine Kinase Receptor-1 (FLT-1), also known as VEGFR-1, in biological samples such as serum, plasma, and cell culture supernatants. This ELISA kit is particularly valuable in studies related to angiogenesis, vascular development, and pathological conditions like cancer, preeclampsia, and inflammatory diseases. By measuring soluble FLT-1 levels, researchers can assess endothelial dysfunction, monitor disease progression, and evaluate the effectiveness of anti-angiogenic therapies. The kit provides a reliable, sensitive, and high-throughput method for supporting clinical research and drug development in oncology and reproductive health.