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Elevated plasma gastrin, CEA, and CA 19-9 levels decrease after colorectal cancer resection.

G Bombski1, A Gasiorowska, D Orszulak-Michalak

  • 1Gastroenterology Ward, Regional Hospital, Piotrkow Trybunalski, Poland.

International Journal of Colorectal Disease
|January 28, 2003
PubMed
Summary
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Fasting gastrin levels were higher in colorectal cancer patients before surgery, correlating with disease stage. This suggests gastrin may play a role in colorectal carcinogenesis, warranting further investigation.

Area of Science:

  • Gastroenterology
  • Oncology
  • Biochemistry

Background:

  • Gastrin influences gastrointestinal mucosal growth and is implicated in colonic tumor development.
  • The precise role of gastrin in colorectal carcinogenesis remains a subject of debate.
  • Elevated gastrin levels are associated with hypergastrinemia, potentially influenced by factors like Helicobacter pylori infection.

Purpose of the Study:

  • To determine fasting serum gastrin levels in colorectal cancer (CRC) patients before and after surgical resection.
  • To investigate the relationship between pre-operative gastrin levels and the clinical stage of CRC.
  • To explore the potential prognostic value of gastrin in colorectal cancer.

Main Methods:

  • Fasting serum gastrin, CA 19-9, and CEA levels were measured using radioimmunoassay before and after CRC surgery.

Related Experiment Videos

  • Helicobacter pylori status was assessed in patients.
  • Statistical analysis correlated gastrin, CEA, and CA 19-9 levels with CRC stage (Dukes' classification).

    • Main Results:

    • Mean fasting gastrin levels were significantly higher in CRC patients compared to controls pre-surgery, normalizing post-surgery.
    • CEA and CA 19-9 levels were elevated pre-surgery and decreased after tumor resection.
    • A significant positive correlation was observed between plasma gastrin, CEA, CA 19-9 levels, and the stage of colorectal cancer.

    Conclusions:

    • Pre-operative gastrin levels are elevated in colorectal cancer patients and correlate with disease stage.
    • The findings suggest a potential role for gastrin in colorectal carcinogenesis.
    • Further research is required to establish the diagnostic or prognostic significance of gastrin in colorectal cancer.