›› 2017, Vol. 35 ›› Issue (11): 848-.doi: 10.3969/j.issn.1000-3606.2017.11.012

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Clinical features of Diamond-Blackfan anemia and gene testing

SHI Yumei, MA Jie   

  1. Department of Paediatrics, Shanxian Hygeia Hospital, Shanxian 274300,Shandong, China
  • Received:2017-11-15 Online:2017-11-15 Published:2017-11-15

Abstract:  Objective To investigate the clinical and genetic features of Diamond-Blackfan anemia (DBA). Method The clinical manifestations and genetic tests of 2 cases with DBA were retrospectively analyzed, and the related literatures were reviewed. Results Two female patient (3-4 month old)with progressive ochriasis nearly a month was included.  Fever, seizure, vomit and abnormal change in urine and stool routine test were not shown. Blood routine test: the number of RBC in the two patients was decreased(1.24 ×1012/L and 1.48×1012/L), HGB (46 g/L and 39 g/L), and the number of RTC was also decreased (4.1×109/L and 4.3×109/L), RCV was normal (108.4 fl). Serum iron determination: Fe (44.3 mmol/L and 41.5 mmol/L) and ferritin (469.2 mmol/L and 491.7 ng/mL) were increased, transferrin was in the normal range. Erythrocyte fragility test resulted normal. Bone marrow examination found rarely erythroblasts. A novel heterozygous mutation in RPS19 gene, c.91C>T(p. P31S), was found by genetic testing on patient 1. And we found a heterozygous mutation in RPL5 gene (c.472_473del) in patient 2. Conclusion The majority of onset age of childhood DBA was within a few months with a erythroid deficiency. And RPS19 gene mutation is a common cause of this disease. The mutation of c.91C>T (p. P31S) has not been reported.