Aim To ascertain whether defibrase has the protective effect against reperfusion injury after cerebral ischemia.Methods 70 renovascular hypertensive rats(RHR) were randomly divided into defibrase group, control group and sham-operated group.Reversible middle cerebral artery occlusion(MCAO) models were produced by the modified. Longa's method,and reperfusion was begun 2 hours after occlusion.Rats in the defibrase group were given defibrase 10 U?kg-1 body weight via femonal intraveneous injection, and in the control group with the same amount of saline. The brain pieces were processed by TTC and HE staining and the infarct size,brain microvessels damage and secondary bleeding were compared between the two groups. Results The volume of infarction in the defibrase group was obviously smaller than in the control group, the damage of brain microvessels was less severe, and the bleeding lesions under optical microscope were less than in the control group. Conclusion Defibrase has protective effect against reperfusion injury post cerebral ischemia.

AIMTo elucidate the molecular mechanism of granulocytic differentiation of human promyelocytic leukemia HL-60 cells induced by all-trans-retinoic acid (ATRA).

METHODSFlow cytometry was used to determine the cell cycle changes of HL-60 cells upon ATRA treatment. Gene expression profiles of HL-60 cells induced by 1 mumol.L-1 ATRA were obtained by using cDNA microarrays containing 9,984 genes and expressed sequence tags (ESTs).

RESULTSCell cycle analysis showed that 48%-73% of cells were arrested at G1/G0 phase upon ATRA treatment; cDNA microarray results demonstrated that the expression of genes encoding adhesion molecules, tissue remodeling proteins, transporters and ribosomal proteins were up-regulated in ATRA treated of HL-60 cells. Several genes involved in oxidase activation pathway were also differentially expressed.

CONCLUSIONATRA treatment induced growth arrest and differentiation in HL-60 cells, which is associated with regulation of the oxidase activation pathway and the expression of tissue remodeling proteins.

Antineoplastic Agents ; pharmacology ; Cell Cycle ; Cell Differentiation ; Gene Expression Profiling ; Granulocytes ; drug effects ; pathology ; HL-60 Cells ; Humans ; Oligonucleotide Array Sequence Analysis ; Tretinoin ; pharmacology

From March 2009 to October 2009, three pediatric patients with parotid tumor were cured. Preoperative physical examination showed regional swelling in parotid area, the surface skin was in moderate reddish purple, the border was vague, and the swelling was inactive. The patients' IgE were significantly increased. B ultrasound examination demonstrated the focus was an isoecho with ringlike dark band around, which was concluded as bull's-eye sign. Magnetic resonance imaging (MRI) examination indicated a cystic mass between the skin and parotid. Preoperative diagnosis was eosinophilichyperplastic lymphogranuloma (Kimura's disease) and the granuloma was excised by operation. Pathological examination revealed the capillary vessel hyperplasia in local tissue with a plenty of eosinophils and lymphocytes infiltrating. The disease was confirmed. Although the disease is rare, the diagnosis still could be made by preoperative physical examination, laboratory and imaging examinations.
Angiolymphoid Hyperplasia with Eosinophilia ; Humans ; Magnetic Resonance Imaging ; Male ; Parotid Gland

OBJECTIVE: To explore the value of the diagnostic-driven therapy with voriconazole in patients with hematological disorders complicated by invasive fungal disease (IFD). METHODS: A total of 111 patients with hematological disorders complicated by IFD, treated with voriconazole in the hematology department of the General Hospital of South Theatre Command from July 2019 to July 2020, were retrospectively analyzed to compare the differences between the empirical therapy and the diagnostic-driven therapy on the treatment time of voriconazole, hospitalization days and antifungal efficacy. SPSS 23.0 was used for statistical analysis of data. RESULTS: Compared with the diagnostic-driven therapy group, the empirical therapy group had more IFD high-risk patients, including a higher proportion of agranulocytosis patients (95.2% vs 69.5%, P=0.003). However, there were no significant differences on the treatment time of voriconazole, hospitalization days and antifungal efficacy of voriconazole between the two groups. CONCLUSION Using diagnostic-driven therapy in relatively IFD low-risk patients can obtain similar therapeutic outcomes and prognosis as empirical therapy in high-risk patients. Either of two strategies can be used in clinical practice according to the individual conditions of patients.
Antifungal Agents/therapeutic use* ; Hematologic Diseases/drug therapy* ; Humans ; Invasive Fungal Infections/drug therapy* ; Retrospective Studies ; Voriconazole/therapeutic use*