首页> 外文期刊>The American Journal of Tropical Medicine and Hygiene >Enhancement of splenic glucose metabolism during acute malarial infection: correlation of findings of FDG-PET imaging with pathological changes in a primate model of severe human malaria.
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Enhancement of splenic glucose metabolism during acute malarial infection: correlation of findings of FDG-PET imaging with pathological changes in a primate model of severe human malaria.

机译:急性疟疾感染过程中脾糖代谢的增强:在严重的人类疟疾灵长类动物模型中,FDG-PET成像的发现与病理变化之间的相关性。

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摘要

In the current study, to elucidate the clinical features of severe malaria, we performed whole-body positron emission tomography (PET) with (18)F-fluorodeoxyglucose (FDG) of Plasmodium coatneyi-infected acute-phase Japanese macaques. The infected monkeys clearly exhibited increase in splenic FDG uptake indicating marked enhancement of glucose metabolism. The standardized uptake values (SUVs) of the spleen in the infected monkeys were significantly higher than those in the uninfected monkey. At autopsy, splenomegaly was clearly present in all infected monkeys, and histopathologic findings included hyperplasia of lymphoid follicles in white pulp, a large number of activated macrophage, and congestion of parasitized red blood cells (PRBCs) and malaria pigments in red pulp. We suggest that increase in splenic glucose uptake may thus be closely related to activation of splenic clearance system against blood-stage malarial parasites.
机译:在当前的研究中,为了阐明严重疟疾的临床特征,我们用了被衣原体感染的日本急性猕猴的(18)F-氟脱氧葡萄糖(FDG)进行了全身正电子发射断层扫描(PET)。感染的猴子明显表现出脾脏FDG摄取增加,表明葡萄糖代谢显着增强。感染猴子的脾脏标准摄取值(SUVs)明显高于未感染猴子的脾脏。尸检时,所有感染的猴子均明显存在脾肿大,组织病理学发现包括白髓中的淋巴滤泡增生,大量活化的巨噬细胞以及红髓中被寄生的红细胞(PRBC)和疟疾色素充血。我们建议,脾脏葡萄糖摄取的增加可能因此与针对血液阶段疟疾寄生虫的脾脏清除系统的激活密切相关。

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