恶性肿瘤类白血病反应的中毒性中性粒细胞的MAXM血液分析仪分析

目的探讨恶性肿瘤伴类白血病反应患者的中毒中性粒细胞是否被MAXM血细胞分析仪误认为嗜碱性粒细胞。方法MAXM血细胞分析仪进行白细胞计数和分类;瑞氏染色镜检白细胞分类;过氧化物酶染色区分中性粒细胞和嗜碱性粒细胞;碱性磷酸酶染色区分类白血病反应。结果26例恶性肿瘤患者用MAXM血细胞分析仪进行白细胞计数为:(28.6±5.7)×109/L;分类为:中性粒细胞49.9%±10.6%,淋巴细胞15.2%±4.3%,单核细胞2.2%±1.2%,嗜酸性粒细胞0.4%±0.3%,嗜碱性粒细胞32.3%±10.2%。镜检分类为:中性粒细胞85.6%±11.8%,淋巴细胞12.9%±5.1%,单核细胞1.5%±1.4%,嗜酸性粒细胞0%,嗜碱性粒细胞0%,其中中毒中性粒细胞为36.5%±7.6%。过氧化物酶染色阳性率为:89.6%±12.3%。中性粒细胞碱性磷酸酶阳性率为83.1%±12.5%,积分395±63。结论MAXM血细胞分析仪把类白血病中毒中性粒细胞误认为嗜碱性粒细胞。

Experimental infection of tree shrews(Tupaia belangeri) with Coxsackie virus A16

Coxsackie virus A16(CA16) is commonly recognized as one of the main human pathogens of hand-foot-mouth disease(HFMD). The clinical manifestations of HFMD include vesicles of hand, foot and mouth in young children and severe inflammatory CNS lesions. In this study, experimentally CA16 infected tree shrews(Tupaia belangeri) were used to investigate CA16 pathogenesis. The results showed that both the body temperature and the percentages of blood neutrophilic granulocytes / monocytes of CA16 infected tree shrews increased at 4-7 days post infection. Dynamic distributions of CA16 in different tissues and stools were found at different infection stages. Moreover, the pathological changes in CNS and other organs were also observed. These findings indicate that tree shrews can be used as a viable animal model to study CA16 infection.