Related Experiment Videos
Cholesterolemia in colorectal cancer
N M Forones1, J B Falcao, D Mattos
1Clinical Gastroenterology, Oncology Division, Universidade Federal de Sao Paulo (UNIFESP-Escola Paulista de Medicina), SP, Brazil. nora@gastro.epm.br
Hepato-Gastroenterology
|December 5, 1998
Summary
Low blood cholesterol levels are associated with colorectal cancer. This study found significantly lower serum cholesterol in colorectal cancer patients compared to healthy individuals, particularly in older patients.
Area of Science:
- Oncology
- Biochemistry
- Epidemiology
Background:
- Colorectal cancer (CRC) incidence is elevated in developed nations.
- High dietary fat intake is a recognized CRC risk factor.
- Paradoxically, lower serum cholesterol levels are often observed at CRC diagnosis.
Purpose of the Study:
- To investigate serum cholesterol levels in CRC patients.
- To compare cholesterol levels between CRC patients and age/sex-matched controls.
Main Methods:
- Serum cholesterol was measured in 85 CRC patients.
- Each patient was matched with a cancer-free control of the same age and sex.
- Total cholesterol was quantified using an enzymatic colorimetric assay.
Main Results:
- Mean serum cholesterol was significantly lower in CRC patients (183.4 mg/dL) versus controls (209.7 mg/dL).
- This difference was more pronounced in patients with colon cancer over 60 years old.
- No significant difference in cholesterol levels was observed across different Dukes' stages.
Conclusions:
- Findings suggest an association between reduced blood cholesterol and colorectal cancer.
- Lower cholesterol levels in CRC patients may be a consequence of the carcinogenic process.