Objective To study the ultrasonographic characteristics of Wilms′tumor (WT), aims at elevating the diagnostic level.Methods We retrospectively studied sonographic features in 30 cases of WT proved by operation and pathology.Results The tumors with heterogeneous pattern of solid and cystic tissue were shown in 22 cases.Seven cases demonstrate predominantly echogenic tumor. A huge cystic mass with numerous septas was shown in 1 case. The tumor extended into renal pelvis in 4, into renal vine in 1.The tumor metastasized to lymphnod in 1, to bilateral lungs in 1. Among 30 cases, the tumor was huge and grew beyond the renal profile in 26 cases, in 3 cases the tumors took up the renal sinus and made its structure turbulence, the renal shape was approximately normal.One case was extrarenal WT,the tumor located in retroperitonemu.Conclusions Sonographically, typical WT is a large heterogeneous mass within or without cystic areas, it also can be a pure cyst. It is easy to diagnose. When the tumor is limited to renal outline, it is easy to confusion with renal cancer. In addition, there are bilateral WT and extrarenal WT. The sonographic characteristics is similar among WT, clear cell sarcoma of kidney, malignant rhabdoid tumor and congenital mesoblastic nephroma. It is difficult to distinguish them from ultrasonography.

Two parental strains BY-14 and BY-6,with high leavening ability in lean and sweet dough respectively,were selected.Through spore production and separation,two haploids with opposition types were selected for cross-breeding.At last one hybridization strain was obtained,with good fermentation ability as BY-14 in lean dough and better than BY-6 by 25%in sweet dough.

Objective To observe the changes of PECAM-1,Bcl-2 and Bax expressed by ischemic cerebrum of adult rats after focal cerebral ischemia. Methods Middle cerebral artery occlusion (MCAO) models were made by operation with Longa suture method in Wistar rats. The expression levels of PECAM-1,Bcl-2 and Bax at the 6th,12th,18th,24th,48th,72nd hour after MCAO were detected by immunohistochemistry staining. Results The expression levels of PECAM-1,Bcl-2 and Bax in cerebrum were significantly increased after MCAO. The expression levels of Bcl-2 we、re up to the peak at the 12th hour after MCAO, while the levels of Bax and PECAM-1 were up to the peak at the 24th and 48th hour after MCAO. At the 72nd hour after MCAO, the expression levels of PECAM.1.Bcl-2 and Bax were still higher than that in the control group(all P＜0.001).Conclusions PECAM-1,Bcl-2 and Bax participate in the different pathological stages of focal cerebral ischemia.

Objective To investigate whether Tumor Necrosis Factor-alpha (TNFα) is capable of activating Rho kinase pathway which leads to smooth muscle cell proliferation and the intervention function of Rosuvastatin, and clarify the mechanism and intervention manner of anti-atherosclerosis by Rosuvastatin. Methods Wistar neonate rat smooth muscle cells were cultured, and the activity of cell proliferation was determined by methyl thiazolyl tetrazolium (MTT). The expression of Rho kinase genes after the stimulation of TNFα was evaluated by RT-PCR. Western blot method was used to measure the protein expression of proliferating cell nuclear antigen (PCNA) after TNFα stimulation and Rosuvastatin intervention in smooth muscle cell. Results The TNFα stimulation significantly enhanced the expression of Rho kinase and increased the expression of PCNA protein in smooth muscle cells (P < 0.05). These effects were positively correlated with prolonged treatment whereas additional Rosuvastatin administration inhibited the above-mentioned effects (P < 0.05). Conclusions The activation of TNFα mediated Rho kinase signaling pathway can significantly promote smooth muscle cell proliferation, and Rosuvastatin can not only inhibit this pathway but also the induced proliferation.

Objective To summarize the sonographic characteristics of Peutz-Jeghers syndrome in children and investigate the diagnostic value of ultrasound.Methods Retrospective analysis of sonographic characteristics of 19 cases with pathologically-confirmed Peutz-Jeghers syndrome were conducted.ResultsExcept for one child,other 18 patients all had more than one polyp with the maximum of sixteen.The polyp with the smallest size of 0.8 cm×0.5 cm×0.8 cm was found in left colic flexure,while the largest one was found in superior rectal with a measurement of 7.6 cm×2.7 cm×3.6 cm.The polyps showed radiatiform echotexture.And hypoechoic and hyperechoic components were present alternately.Blood flow was easily identified within these polyps by color Doppler sonography.Intussusceptions were observed in 11/19 patients.Among them,10 cases were located at small intestine.The sonographic finding was a concentric structure with a polyp at the top.Conclusions The sonographic appearence of Peutz-Jeghers syndrome is characteristic.Before surgery,ultrasonographic examination could achieve a accurate diagnosis for Peutz-Jeghers syndrome.

Objective To describe the sonographic appearance of mesenchymal hamartoma of the liver(MHL)and to analyze the diagnostic value of ultrasound.Methods Eleven surgically and pathologically confirmed cases of MHL from January 2005 to May 2011 in the Beijing Children′s Hospital were retrospectively reviewed.Results Ultrasound examinations showed 9 cystic hamartomas,including 7 multiseptate cystic and 2 monocystic lesions.Of the 7 multiseptate cystic hamartomas,4 had a honeycomb appearance and 3 had irregularly-distributed multiple cysts with varied septations.Of the 2 monocystic hamartomas,1 had a large cystic portion while the other was mainly solid with approximately 4% cystic portion of the tumor.Two cases in this group were solid,presenting with a well-defined homogenous mass.Conclusions Ultrasonography is an effective imaging modality for the diagnosis for MHL.A mixed or a mainly-cystic liver mass found in a child less than 2 years old should be suspicious for MHL.

Objective:To analyze the distribution of UGT1A1 gene polymorphisms in Chinese Han patients with extensive-disease small cell lung cancer(ED-SCLC),and evaluate the correlation between UGT1A1 gene polymorphisms and toxicity and efficacy of irino-tecan(CPT-11) based regimen in the patients with ED-SCLC. Methods: The analysis of UGT1A1?28 and UGT1A1?6 gene poly-morphisms was performed in 67 patients with ED-SCLC admitted in our hospital from June 2011 to January 2013. The 67 cases with ED-SCLC treated with irinotecan(CPT-11) based regimen were enrolled to observe the adverse events and efficacy during the chemo-therapy, including objective responserate rate ( ORR) , progression free survival ( PFS) and overall survival ( OS) . The incidence of different genotypes was compared. Results:The distribution of UGT1A1 genotypes in the 67 patients was follows:UGT1A1?28 wild-type (WT) genotype TA6/6 (56, 83. 6%), heterozygous genotype TA6/7 (11, 16. 4%);UGT1A1?6 wild-type (WT) genotype G/G (45,67. 2%), heterozygous genotype G/A (22,32. 8%). No significant difference of PFS and OS was observed between the differ-ent genotypes. The incidence of grade 3 and 4 delayed diarrhea and neutropenia in the patients carrying UGT1A1?6 G/A was higher than that in those with WT genotype (36. 4% vs. 6. 6%, P<0. 05;27. 2% vs. 4. 4%, P<0. 05, respectively). The incidence of grade 3 and 4 thrombocytopenia in the patients carrying UGT1A1?28 TA6/7 was higher than that in those with WT genotype (27. 2%vs. 1. 8%, P<0. 05). The patients simultaneously carrying UGT1A1?28 TA6/7 and UGT1A1?6 G/A were prone to suffering 3 and 4 delayed diarrhea and neutropenia. Conclusion: UGT1A1 polymorphisms may predict the adverse events of CPT-11 in ED-SCLC, while can not predict the efficacy of CPT-11.

Objective To investigate the correlation between the formation of pigmented biliary calculus and biliary H.pylori infection.Methods Bile from 35 patients with pigmented biliary calculus and 10 healthy controls was cultured for aerobic,anaerobic and H.pylori.The expression of H.pylori- DNA in bile,bile duct mucosa and pigmented calculus were determined by PCR.The expression of H. pylori associated protein in bile duct mucosa was determined by Western-blot and Warthin-Starry staining.Results H.pylori culture was negative in all bile samples.In 35 patients with biliary pigmen- ted calculus,H.pylori was detected by PCR in the center of calculus,bile and bile duct mucosa of 14.29%,31.43% and 56.67% patients,respectively.Among H.pylori-DNA positive bile samples,7 contained anti-CagA antibodies,and 6 contained Vac A.in addition to Vacuolating cytotoxin(35000), glycoprotein(30000),Urase Band Urase A.Bacteria resembling H.pylori by Warthin-Starry stainning were found in 7 of 30(23.33%)bile duct mueosal samples from patients with biliary pigmented calculus. H.pylori-DNA and its associated protein were not detected in all bile and bile duct mucosae samples from the healthy controls.Conclusions The evidence of H.pylori-DNA and its associated protein in biliary system might indicate the role of H.pylori in the formation of biliary pigmented calculus.

Objective To study the changes of flow parameters of superior mesenteric artery (SMA) in children with abdominal type Henoch-Schonlein purpura (HSP) using color Doppler ultrasound.Methods Ten children with abdominal type HSP and 17 controls were included in present study.The blood flow parameters of SMA[including peak velocity(PV),end-diastole velocity(EDV),resistant index(RI)]were measured at acute and recovery stage separately.Statistical analysis was conducted among groups.Results PV were (41.57±8.02)cm/s,(33.38±7.44)cm/s and (35.34±9.73)cm/s in acute stage,recovery stage and control group,respectively.There was no statistically significant difference among groups(F=2.471,P=0.10).EDV were(7.63±4.28)cm/s,(4.23±2.57)cm/s and (3.77±0.87) cm/s in acute stage,recovery stage and control group,respectively.There was significantly significant differences between acute stage group and other two groups(t=0.066,P=0.025;t=0.059,P=0.003).RI were (0.85±0.17),(1.00±0.15) and (1.04±0.13) in acute stage,recovery stage and control group,respectively.Also there was significantly significant differences between acute stage group and other two groups(t=1.391,P=0.020;t=1.239,P=0.026).Conclusion For abdominal type HSP in children,the changes of PV,EDV and RI of SMA were significant,which may help us determine the stage of disease.

There has been thousands of years' history that traditional Chinese medicines were used in the prevention and treatment of infectious disease. In recent years, traditional Chinese medicine plays a unique role in the control of variety of new infectious diseases. This article provides a summary on our knowledge of the traditional Chinese medicine theory in the explanation of infectious disease, application of Chinese medicines and the pharmacological mechanism in the successful management on the Ebola virus disease.
Drugs, Chinese Herbal ; therapeutic use ; Hemorrhagic Fever, Ebola ; therapy ; Humans ; Medicine, Chinese Traditional