Objective To investigate the changes of serum trace elements and nutritional proteins in children with acute lymphoblastic leukemia and acute myeloid leukemia at the stage of remission.Methods Erythrocyte count,hemoglobin,serum levels of total protein,albumin,iron,ferritin,transferrin,lactate dehydrogenase,ceruloplasmin,cuprum,zinc and their ratio were measured in 43 patients with acute lymphoblastic leukemia,19patients with acute myeloid leukemia at stages of remission(remission groups),and 30 healthy controls(control group)enrolled from Shanghai Children's Medical Center using atomic absorption spectrometry,nophelometry assay,dry chemical method,and chemiluminescence method.The differences of these indicators between remission groups and control group were analyzed.Results Serum levels of total protein(P=0.454),iron(P=0.769),transferrin(P=0.903),and zinc(P=0.343)were not significantly different between the remission groups and the control group.Serum levels of ferritin(P=0.000),lactate dehydrogenase(P=0.000),ceruloplasmin(P=0.000),cuprum(P=0.002),and Cu/Zn ratio(P=0.003)in the remission groups were significantly higher than those in control group.On the contrary,erythrocyte count(P=0.000),hemoglobin(P=0.000)and albumin(P=0.046)were significantly lowerin remission groups than those of control group.Serum levels of all detected indicators were not significantly different between the acute lymphoblastic leukemia remission group and acute myeloid leukemia remission group(P>0.05)except for lactate dehydrogenase(P=0.025).Conclusion At the remission stage of acute lymphoblastic leukemia and acute myeloid leukemia,serum levels of some trace elements and nutritional proteins gradually returned to normal,and the original balance is established again.

Objective To investigate the changes of serum trace elements and nutritional proteins in children with acute lymphoblastic leukemia and acute myeloid leukemia at the stage of onset. Methods Serum levels of cuprum, zinc, iron, magnesium, phosphorus, calcium, ceruloplasmin, ferritin, transferrin, lactate dehydrogenase, total protein, albumin, hemoglobin, and erythrocytes were detected in 73 patients with acute lymphoblastic leukemia, 26 patients with acute myeloid leukemia at stages of onset, and 30 healthy controls using methods including atomic absorption spectrometry, nophelometry assay, dry chemical method, and/or chemiluminescence method. The differences of these indicators among these three groups were analyzed by t test. Results Serum levels of all detected elements except for zinc and phosphorus were significantly different between the onset groups and the control group (P ＜ 0.05 ). Serum levels of cuprum, magnesium, iron, ferritin, ceruloplasmin, and lactate dehydrogenase in the onset groups were significantly higher than those in control group ( all P ＜ 0.05 ). On the contrary, calcium, transferrin, total protein, albumin, hemoglobin, and erythrocyte count were significantly lower in the onset groups than those in control group (P ＜ 0.05). Serum iron, cuprum, zinc, and their metabolism were significantly different between acute lymphoblastic leukemia group and acute myeloid leukemia group ( P ＜ 0.05 ).Conclusion　Serum levels of some trace elements and nutritional proteins are disordered and out of balance in chil dren with acute lymphoblastic leukemia and acute myeloid leukemia at stages of onset.

Objective To investigate the characteristics of the road traffic accident (RTA) casualties in Shanghai in 2003.Methods.The characteristics of RTA casualties were analyzed retrospectively on the data of Public Security Bureau and other related information.Results There were 54 197 RTA cases in 2003 with 1 406 death and 11 178 injured.The incidence rate and fatality of RTA was 311.48/10~4 and 11.17% respectively.The vehicle or population injury rate and mortality were 64.24/10~4,8.08/10~4,83.31/10~5 and 10.48/10~5,respectively.The fatality of suburb was higher than that of urban.Most of the casualties were bicyclist,pedestrians and motorcyclist,ranged mainly from 21 to 50 years old. Head injury and multiple traumas were the leading cause of death.Conclusion The RTA related injury had become a public health problem.The key strategies to decrease the fatality and disability of RTA were to propagandize the traffic safety perception in citizen and enforce the construction of rescue system for RTA including the EMSS.