0.05),but there were statistically difference within E15,E19,P2,P10(Pa

No abstract available.
Cellulitis* ; Klebsiella pneumoniae* ; Osteomyelitis*

No abstract available.
Dermatomyositis* ; Lymphoma, Follicular*

No abstract available.
Neck* ; Nevus* ; Sebaceous Glands*

Objective To evaluate the efficacy of different three-dimensional CTA methods on 64-slice sprial CT in the preoperative assessment of gastric arteries and their variations.Methods Sixty-six consecutive patients with gastric cancer who underwent 64-slice spiral CT examinations preoperatively were retrospectively studied.To get the STS-MIP images, the thickness of slab was adjusted according to the inner diameter of targeted blood vessels and their cross-layer distribution.After four weeks, the AVVR images of all cases was got by the auto-vessel technique.The demonstration rates and origins of the direct and indirect feeding arteries were analyzed on AVVR and STS-MIP.McNemar tests were used to compare the detection rates of gastric feeding arteries by STS-MIP and AVVR.The relationship between CT value and display rate of vessels was analyzed using independent-samples t test The variations of blood vessels were analyzed.Results The display rate of indirect feeding arteries were all 100% (66/66) by STS-MIP and AVVR.The display rates of left gastric artery (LGA) and right gastroepiploic artery (RGEA) were 98.5% (65/66), 100.0% (66/66) and 97.0% (64/66), 100.0% (66/66) by STS-MIP and AVVR respectively.The display rates of right gastric artery (RGA), left gastroepiploic artery (LGEA), short gastric artery (SGA) and posterior gastric artery (PGA) by AVVR were lower than those of STS-MIP with statistical significances [RGA:68.2%(45/66) vs.98.5% (65/66), P<0.01; LGEA: 53.0% (35/66) vs.97.0% (64/66), P<0.01; SGA: 7.6% (5/66) vs.59.1 %(39/66), P<0.01; PGA: 18.2% (12/66) vs.63.6% (42/66), P<0.01 ].The demonstration rates of LGEA, RGEA and SGA increased accompanied with the increasing of CT value in celiac axis (LGEA: 35 cases displayed with mean CT value of (272±44) HU, 31 cases did not display with mean CT value of (229±42) HU, t=4.043, P<0.01; RGEA: 64 cases displayed with mean CT value of (256±44) HU, 2 cases did not display with mean CT value of (141 ±26)HU, (=3.641, P<0.01; SGA:5 cases displayed with mean CT value of (298 ±39),61 cases did not display with mean CT value of (249±47)HU, t=2.278,P<0.01). Thirteen cases (19.7%) with accessory left hepatic artery were identified, and seven cases (10.6%) with celiac axis variances were depicted.Conclusion 64-slice spiral CT can clearly demonstrate gastric feeding arteries and related variations, which may provide useful information for the operation of gastric cancer.Stomach neoplasm; Tomography, X-ray computedAVVR.The display rates of left gastric artery(I,GA) and fight gastroepiploic artery(RGEA)were 98.5%(65/66),100.0%(66/66)and 97.0%(64/66),100.0%(66/66)by STS-MIP and AVVR respectively.The display rates of right gastric artery(RGA),left gastroepiploic artery(LCEA),short gastric arterysignificances [RGA:68.2%(45/66)VS.98.5%(65/66), P<0.01;ICEA:53.0%(35/66)VS.97.0%(64/66),P<0.01;SGA:7.6%(5/66)VS.59.1%(39/66),P<0.01;PGA:18.2%(12/66)VS.63.6%(42/66).P<0.01 1.The demonstration rates of I.GEA,RGEA and SGA increased accompaniedwith the increasing of CT value in celiac axis(LGEA:35 cases displayed with mean CT value of(272±44)HU,31 cases did not display with mean CT value of(229±42)HU,t=4.043,P<0.01;RGEA:64 cases displayed with mean CT value of(256±44)HU,2 cases did not display with mean CT value of(141±26)HU,t=3.641, P<0.01;SGA:5 cases displayed with mean CT value of(298±39),61 casesaccessory left hepatic artery were identified.and seven cases(10.6%) with celiac axis variances werevariations.which may provide useful information for the operation of gastric cancer.

No abstract available.

No abstract available.
Acanthoma* ; Nose*

OBJECTIVETo investigate the effects of arsenic pentaoxide (As2O5) on the proliferation and apoptosis of endothelial cells and compare the effect of As2O5 and arsenic trioxide (As2O3) in vitro.

METHODSHuman umbilical vein endothelial cells (HUVEC) were incubated with or without As2O5 or As2O3 for a certain period. The proliferation profile of HUVEC was determined by methyl thiazolyl tetrazolium (MTT) method. The apoptosis of HUVEC was detected by microscopy and flow cytometry (FCM).

RESULTSAs shown by MTT assay, the viabilities of HUVEC were (72.5 +/- 13.8)%, (52.9 +/- 6.2)%, (15.0 +/- 12.8)%, and (13.8 +/- 13.2)%, respectively, in 0.5, 1.0, 5.0, and 10.0 mg/L As2O5 groups, of which the viabilities of HUVEC at 1.0, 5.0, and 10.0 mg/L of As2O5 were significantly lower than controls (P = 0.006, 0.007, and 0.008); however, the viability was not significantly different between 5.0 and 10.0 mg/L As2O5 groups (P = 0.119). In 1.0 mg/L As2O5 group, the cell viabilities were (88.4 +/- 6.3)%, (53.1 +/- 8.8)%, (30.7 +/- 7.9)%, and (16.3 +/- 4.6)%, respectively, at 24, 48, 72, and 96 h, of which the cell viabilities at 48, 72, and 96 h were significantly lower than controls (P = 0.042, 0.025, and 0.012). As2O5-induced apoptosis of HUVEC was observed by phase contrast microscope and flow cytometry with Annexin V/PI staining. After 48 hours of incubation, the IC50s of As2O5 and As2O3 were 1.1 and 0.3 mg/L, respectively.

CONCLUSIONSAs2O5 can inhibit the proliferation of HUVEC and the minimum effective concentration is 1 mg/L. Apoptosis is the main way that As2O5 induces the death of HUVEC. The inhibitory effect of As2O5 on HUVEC is weaker than that of As2O3.

Apoptosis ; drug effects ; Arsenicals ; pharmacology ; Cell Line ; Cell Proliferation ; drug effects ; Human Umbilical Vein Endothelial Cells ; cytology ; drug effects ; Humans ; Oxides ; pharmacology

To investigate the earlier cellular alterations(Glucose-6-Pase activity and morphologic features) caused by a hepatotoxin, thioacetamide (TAA), a single dose of the agent (200mg per kg of body weight) was given intraperitoneally to mice, which were sacrificed at intervals of 4, 8 or 16 hours after corresponding treatments. For histochemical study of glucose-6-phosphatase (G6Pase) activity, unfixed frozen sections were incubation of the Wachstein and Meisel medium and stained. The smallest pieces of liver tissue were fixed in glutaraldehyde and osmic acid, and stained by the routine electron-microscopic techniques. Some pieces of liver were fixed in 10% formalin, embedded in paraffin, and stained with hematoxylin and eosin. There was a rapid and progressive loss of G6Pase activity, in an orderly time sequence, in the experimental group. There were also morphologic changes: loss of cytoplasmic basophilia, cell infiltration and necrosis in the centrilobular and intermediate zones, and an increase of sER, small vesicles and ribosomes in the cytoplasm of hepatocytes, the marked changes of nuclei and nucleoli, and a slight increase of lipid droplets in the cytoplasm at 16 hours after intoxication. The correlation between these cellular alterations was discussed in view of mechanisms in the hepatotoxic action.
Acetamides/adverse effects* ; Animal ; Glucose-6-Phosphatase/metabolism* ; Liver/drug effects* ; Liver/enzymology ; Liver/ultrastructure ; Male ; Mice ; Thioacetamide/adverse effects* ; MH - ; Substances: ; Acetamides ; Thioacetamide ; Glucose-6-Phosphatase

To investigate the earlier cellular alterations(Glucose-6-Pase activity and morphologic features) caused by a hepatotoxin, thioacetamide (TAA), a single dose of the agent (200mg per kg of body weight) was given intraperitoneally to mice, which were sacrificed at intervals of 4, 8 or 16 hours after corresponding treatments. For histochemical study of glucose-6-phosphatase (G6Pase) activity, unfixed frozen sections were incubation of the Wachstein and Meisel medium and stained. The smallest pieces of liver tissue were fixed in glutaraldehyde and osmic acid, and stained by the routine electron-microscopic techniques. Some pieces of liver were fixed in 10% formalin, embedded in paraffin, and stained with hematoxylin and eosin. There was a rapid and progressive loss of G6Pase activity, in an orderly time sequence, in the experimental group. There were also morphologic changes: loss of cytoplasmic basophilia, cell infiltration and necrosis in the centrilobular and intermediate zones, and an increase of sER, small vesicles and ribosomes in the cytoplasm of hepatocytes, the marked changes of nuclei and nucleoli, and a slight increase of lipid droplets in the cytoplasm at 16 hours after intoxication. The correlation between these cellular alterations was discussed in view of mechanisms in the hepatotoxic action.
Acetamides/adverse effects* ; Animal ; Glucose-6-Phosphatase/metabolism* ; Liver/drug effects* ; Liver/enzymology ; Liver/ultrastructure ; Male ; Mice ; Thioacetamide/adverse effects* ; MH - ; Substances: ; Acetamides ; Thioacetamide ; Glucose-6-Phosphatase