12 min - BioSense Team - 2025-05-14
- cancer
- screening
- biomarkers
- prevention
Cancer Prevention: Biomarkers and Screening
Note: This guide is for educational purposes only and does not replace professional medical advice.
Early detection remains the most effective weapon against cancer. Overview of useful biomarkers.
Biomarkers by Cancer Type
### Colorectal Cancer - Screening: Fecal immunochemical test (FIT) every 2 years (50-74 years) - Biomarkers: Hemoccult, fecal calprotectin - Colonoscopy: If family history
### Breast Cancer - Screening: Mammography every 2 years (50-74 years) - Biomarkers: CA 15-3 (follow-up, not screening) - Risk factors: BRCA1/BRCA2
### Prostate Cancer - PSA: With caution (50+ years or 45+ if high risk) - Free/total PSA ratio: More specific - Digital rectal exam: Complementary examination
### Lung Cancer - Low-dose CT: High-risk smokers/ex-smokers - Emerging biomarkers: Circulating microRNAs
Inflammatory Markers
### CRP (C-reactive Protein) - Normal: < 3 mg/L - Chronic inflammation: Cancer risk factor
### Vitamin D - Optimal: 30-50 ng/mL (75-125 nmol/L) - Protective role: Immunity, cellular differentiation
Prevention Tips
- Anti-inflammatory diet: Fruits, vegetables, turmeric
- Physical activity: 20-30% risk reduction
- Weight control: Optimal BMI
- Quit smoking: Risk halved within 5 years
- Limit alcohol: Maximum 2 drinks/day men, 1 drink/day women
Related Articles
See also: CRP and Inflammation, Physical Activity, Alcohol and Tobacco.
*Information based on general public health recommendations*