# Chronic kidney disease research in Brazil > Live situation record from CLSTR: https://clstr.news/situations/chronic-kidney-disease-research-in-brazil > Updated: 2026-09-01T00:20:44.000Z. Sources: 2. Developments: 2. Recent research in Brazil has highlighted various factors and challenges regarding chronic kidney disease (CKD). A study by the Pontifical Catholic University of Paraná (PUCPR) warned of significant underdiagnosis of the condition. While the Brazilian Society of Nephrology estimates CKD affects approximately 10% of the population, researchers suggest the actual number may be higher due to inadequate early detection. The study noted that the combination of blood creatinine and urine albuminuria tests is rarely used together in clinical practice, with complete screening rates remaining below 7%. Subsequent research from the Unesp Botucatu Medical School identified a potential link between oral health and CKD risk. The study found that individuals with poor oral health or tooth loss faced a higher likelihood of developing the disease, whereas frequent dental hygiene, such as brushing three times a day, appeared to be a protective factor. While these associations are strong, researchers noted that further studies are necessary to confirm a direct cause-and-effect relationship. ## Timeline ### 2026-09-01: Brazil research links oral health to chronic kidney disease risk Studies in Brazil highlight a link between poor oral health and increased risks of chronic kidney disease, while emphasizing the protective benefits of frequent tooth brushing. 2 sources. https://clstr.news/cluster/brazil-research-links-oral-health-to-chronic-kidney-disease-risk ### 2026-08-12: Brazil study warns of chronic kidney disease underdiagnosis A study by PUCPR warns that chronic kidney disease is significantly underdiagnosed in Brazil due to a lack of combined creatinine and albuminuria testing in clinical practice. 7 sources. https://clstr.news/cluster/brazil-study-warns-of-chronic-kidney-disease-underdiagnosis --- Cite as: Chronic kidney disease research in Brazil. CLSTR, https://clstr.news/situations/chronic-kidney-disease-research-in-brazil