A splice mutation in gene in the patient with recurrent epistaxis and nasal vascular malformation.

Platelet type bleeding disorder-18 (BDPLT18) caused by mutations of Ras guanyl releasing protein 2 () is a relatively rare, new autosomal recessive disorder. Here, we reported a splice mutation in gene in the patient with recurrent epistaxis and nasal vascular malformation. The patient, an 8-year-old girl, suffered from anemia due to frequently severe recurrent epistaxis, requiring regular blood transfusions every 2-3 months.

NUDT15 polymorphism in healthy children with Bai nationality in Yunnan of China.

Background: Thiopurine methyltransferase (TPMT) polymorphism is one of the causes of the toxicity of thiopurines, but this is rarely seen in Asian populations. Rather, the nucleoside diphosphate-linked X-component motif 15 (NUDT15) gene is frequently linked to mercaptopurine (MP) intolerance and myelotoxicity in children with acute lymphoblastic leukemia (ALL) in East Asians; however, little is known about the NUDT15 polymorphism in healthy children, especially in ethnic minorities in China.

Methods: A total of 162 cases of healthy children with Bai nationality were enrolled for NUDT15 genotyping.