Tag Archives: children

Leukemia: Scientists make major breakthrough in understanding disease

The study was conducted amongst children with Down’s syndrome — who are 20-50 times more prone to childhood leukemias than other children — and involved analysing the DNA sequence of patients at different stages of leukemia. The researchers uncovered that two key genes (called RAS and JAK) can mutate to turn normal blood cells into cancer cells. However, these two genes never mutate together, as one seems to exclude the other. This discovery means we can begin to identify which of the two genes are mutated in patients, and therefore more effectively target their cancer in lower doses (reducing toxicity for the patient) with less side-effects…

Gene likely to promote childhood cancers pinpointed by researchers

“We and others have found that Lin28b — a gene that is normally turned on in fetal but not adult tissues — is expressed in several childhood cancers, including neuroblastoma, Wilms’ tumor and hepatoblastoma, a type of cancer that accounts for nearly 80 percent of all liver tumors in children,” said Dr. Hao Zhu, a principal investigator at CRI, and Assistant Professor of Pediatrics and Internal Medicine at UT Southwestern Medical Center. “In our study, we found that overproduction of Lin28b specifically causes hepatoblastoma, while blocking Lin28b impairs the cancer’s growth…

New way to generate insulin-producing cells in type 1 diabetes

“We have found a promising technique for type 1 diabetics to restore the body’s ability to produce insulin. By introducing caerulein to the pancreas we were able to generate new beta cells — the cells that produce insulin — potentially freeing patients from daily doses of insulin to manage their blood-sugar levels.” said Fred Levine, M.D., Ph.D., professor and director of the Sanford Children’s Health Research Center at Sanford-Burnham. The study first examined how mice in which almost all beta cells were destroyed — similar to humans with type 1 diabetes — responded to injections of caerulein. …

Synthetic triterpenoids show promise in preventing colitis-associated colon cancer

The molecules, known as synthetic triterpenoids, appear to achieve their positive effect in two ways. First, they impede inflammation, often a flashpoint that contributes to the development of colon cancer. Second, they increase 15-hydroxyprostaglandin dehydrogenase (15-PGDH), a gene product that is known at high levels to protect against colon cancer. …