Peking University, Beijing, 25th Feb, 2009: Following a high dosage consumption of melamine, the frequency of lithiasis is 7 times that of those without melamine; prematurely born infants are 4.5 times more likely to contract lithiasis than normal infants. Leader of the kidney specialist group of Pediatric Subdivision of the Chinese Medical Association, Peking University Medial School’s Professor Ding Jie led the research team to accomplish a research paper in response to the recent melamine-contaminated milk powder incident. Their thesis “Melamine-tainted Milk Powder and Lithiasis in Childrens’ Urinary System” was recently cited in the medically acclaimed New England Journal of Medicine.
This research investigated 589 cases, of which 421 were involved in the consumption of melamine. Researchers targeted children ages 3 or less with lithiasis, and began a series of medical background research, followed by urine tests, kidney and liver functionality exams, as well as ultrasound to examine and monitor the conditions of the patients.
According to their research, those with a large intake of melamine were 7 times more likely to form stones than those who tested melamine negative. Prematurely born infants were 4.5 times more likely to form stones, ultimately leading to the conclusion that prematurely born children and those who came into contact with melamine are more likely to fall victim to lithiasis. Those with kidney stones did not show typical clinical symptoms.
From Peking University’s First Hospital’s Pediatrics, Clinical Laboratory, and Medical Statistics departments, and from Peking University’s Third Hospital, Clinical Epidemiology Research Center, a total of 15 researchers participated in this project. The research results were based on the assistance and guidance of clinical workers.