Serum gastrin-releasing peptide, or gastrin-releasing peptide precursor, is a tumor marker that can be used as an aid in the diagnosis of cancer.
1.Gastrin-releasing peptide precursor is an important regulatory molecule in the body, which exists in the respiratory tract, nervous system and gastrointestinal tract.
The normal value of gastrin-releasing peptide precursor is 2~50pg/ml, and its obvious elevation can be seen in many kinds of neuroendocrine tumors, such as medullary carcinoma of thyroid, small-cell lung cancer, carcinoid tumor, gastrinoma and so on.
2. Renal insufficiency is also the cause of elevated gastrin-releasing peptide precursor level.
Therefore, it is impossible to determine the cause of gastrin-releasing peptide precursor elevation solely based on serum gastrin-releasing peptide precursor elevation, and it is necessary to combine with the symptoms of the disease and improve relevant examinations, such as chest CT, renal function and other examinations, to make a clear diagnosis and take appropriate treatment.