三例严重急性呼吸综合征疑似病例的鉴别诊断分析

例 1　 男 ,8个月 ,因发热 2d ,伴干咳入院。患儿母亲为严重急性呼吸综合征 (SARS)确诊病例 ,患儿于母亲病后第 6天发病 ,相同密切接触情况下患儿父亲一直未发病。体检 :体温 38.3℃ ,生命体征平稳。双肺呼吸音粗 ,未闻干、湿啰音9姘紫赴?5 .0× 10 9/L ,N 0 .2 6 ,L 0 .6 4 ,CRP 12 0mg/L ,胸X线片先后出现左下、右下、左上肺炎 ,至入院第17天左上肺炎部分吸收 ;CD4淋巴细胞 798个 /mm3 、2 3% (正常 30 %～ 5 4 % ) ;CD8淋巴细胞 4 5 3个 /mm3 、13% (正常 15 %～ 34% ) ;NK淋巴细胞 36 0个 /mm3 、10 % (正常 5 %～ 2 7% ) ;…     

Antiangiogenic effect of KR-31372 by apoptosis via mediation of mitochondrial KATP channel opening and the phosphatase and tensin homolog deleted from chromosome 10 phosphorylation

Antiangiogenic action of (2R,3R,4S)-N"-cyano-N-(6-nitro-3,4-dihydro-hydroxy-2-methyl-2-dimethoxymethyl-2H-1-benzopyran-4yl)-N'-benzyl guanidine (KR-31372) was examined with its proapoptotic action in human umbilical vein endothelial cells (HUVECs) compared with diazoxide. KR-31372 as well as diazoxide significantly suppressed the neovascularization in mice induced by the Matrigel-containing recombinant human vascular endothelial growth factor (VEGF)165 in vivo and the basal tube formation of HUVECs in vitro with suppression of proliferation of HUVECs stimulated by VEGF165. KR-31372 and diazoxide enhanced DNA fragmentation associated with increase in phosphatase and tensin homolog deleted from chromosome 10 (PTEN) and decrease in serine/threonine kinase phosphorylation, which were accompanied by augmented Bax and cytochrome c release, and suppressed Bcl-2 in HUVECs. In the U87-MG cells, when transfected with expression vectors for sense PTEN, KR-31372 enhanced DNA fragmentation, but not in naive U87-MG cells. The suppression by KR-31372 and diazoxide of these variables was significantly antagonized by 5-hydroxydecanoic acid, a mitochondrial KATP channel blocker. Taken together, KR-31372 strongly inhibited angiogenesis in HUVECs by proapoptotic mechanism via mediation of 5-hydroxydecanoic acid-inhibitable mitochondrial KATP channel opening and PTEN phosphorylation.     

Thyroid actinomycosis: a case report

Actinomycosis is nowadays a not very common festered chronic infection. Cervicofacial actinomycosis is the most frequent clinical form, and it is due in most cases to Actinomyces israelii. Thyroid actinomycosis has been scarcely described in the literature. The lesions, that are characterized to be notably indurated and to contain multiple abscesses that drain to the surface through sinus tracts, frequently simulate other infective clinical entities and often neoplasms, therefore the diagnosis is delayed in the time. From a case of thyroid actinomycosis diagnosed and treated in our service which was initial diagnosed as a thyroid neoplasm, we revise the cases described in the literature and we make a point in the difficulty to arrive to the diagnosis of this entity.