Choriocarcinoma ; diagnosis ; Female ; Humans ; Liver ; pathology ; Pregnancy

onary artery was turtuous and dilated in 4 cases. Conclusion 64 MSCT is emerging as an essential imaging tool for detecting early anomalous origin of the left coronary artery from the pulmonary artery with high resolution and significance.

OBJECTIVEIn this study, five heavy metals contamination of soil and different parts of Panax notoginseng in the plantation area was investigated. Analysis of heavy metals correlation between the planting soil and P. notoginseng; and the absorption and accumulation characteristics and translocation of soil heavy metals by P. notoginseng plants was revealed.

METHODThrough field investigation and laboratory analytical methods, analysis of China's 30 different soil P. notoginseng origin and content of heavy metals in five different parts of the P. notoginseng plant content of heavy metals.

RESULTThe results revealed that the soil heavy metals should not be neglected in the plantation area Referring to the national soil quality standards (GB15608-1995), the excessive degree of soil heavy metals pollution showed Hg > As > Cd > Cr in the plantation area, and Pb content of soil was in the scope of the standard. Refer to 'Green Industry Standards for Import and Export of Medical Plants and Preparations', the excessive degree of heavy metals content of P. notoginseng plants showed As > Pb > Cr > Cd, and Hg content of plants was in the scope of the standard. Concentrations of five heavy metals of underground parts of P. notoginseng plants are higher than aboveground, and heavy metals elements are more concentrated in the root, followed by the rhizome of P. notoginseng plants. Heavy metal accumulation characteristics of the different parts of the P. notoginseng of the overall performance is the root > the rhizome > the root tuber > leaves > stems. From the point of view BCF value analysis of various parts of the P. notoginseng plants to absorb heavy metals in soil, BCF values of all samples were less than 1, description P. notoginseng not belong Hyperaccumulator. From the view of transportation and related analysis of the soil-P. notoginseng systems, the rhizome of P. notoginseng and the content of As and Cr in soil was significantly correlated, the root of P. notoginseng and the content of Cd in soil was significantly correlated, and no significant correlation between the other indicators. Through the analysis of transportation transfer coefficient showed: Pb, As and Cr are not easy to transport aboveground part from the underground, but Cd and Hg are relatively easy to transport stems from rhizome, the migration of five heavy metals in the aerial part is relatively strong, and heavy metal of stems is easily transported to the leaves.

CONCLUSIONP. notoginseng does not belong to the enrichment of heavy metals in crops, especially for Hg in soil with strong patience. In survey area, the content of heavy metals of P. notoginseng's planting soil is relatively high, and the heavy metals As, Pb, Cr, Cd of P. notoginseng also exist heavy metals exceeded problems. Due to the presence of heavy metals in crops internal absorption and translocation of special laws, accumulation of heavy metals varied significantly in different parts of P. notoginseng. The overall, the performance for the heavy metal content of the underground parts is more than aboveground, it explain heavy metals of P. notoginseng plants is still the main source of the soiL Therefore, the key to control of planting area soil environmental quality and reduce exogenous harmful substances secondary pollution of soil in the cultivation process are to study and solve the heavy metals pollution problem of P. notoginseng.

Adsorption ; China ; Laboratories ; Metals, Heavy ; analysis ; Panax notoginseng ; chemistry ; Soil ; chemistry ; Soil Pollutants ; analysis

6-11 years old were 9.67%, 6.81%, 3.49% and 0.80%, respectively.Furthermore, the infection rates between each two age stages were significantly different(Pa0.05).4.Infection rates in 2005,2006 and 2007 were 4.0%, 8.92%, 8.85%,respectively.Infection rates between 2005 and 2006,2007 were significantly different(Pa

Atomic absorption spectrometry was employed to determine the levels of 7 essential trace elements in the whole blood of 150 mainteinance hemodialysis (MHD) patients.And comparisons were made with the normal group of 200 participants in routine medical examination at the same time at our hospital.And among 7 indices,as compared with the control group,the blood levels of zinc,chromium,cobalt and manganese were significantly lower (P ＜ 0.05) while those of selenium and copper higher (P ＜ 0.05).MHD patients lacked essential trace elements to a varying extent.A clinician should pay attention to complementing essential trace elements to improve the patient's quality of life.

10.3969/j.issn.1007-3969.2013.04.005

OBJECTIVE To explore a novel pH-sensitive fluorescent probe for in vivo tumor imaging. METHODS Zn5 were obtained in 140℃ after mixed with MeOH, water, Zn(NO3)2 · 6H2O, H4L and trimethylamine. The fluorescence spectra of Zn5 with the same concentration in different pH aqueous solutions were detected. And the stability of Zn5 was investigated by time dependent fluorescence emission spectra of Zn5 in BSA aqueous solution and 5.0% serum solution. Then, the cytotoxicity of Zn5 was detected by MTT assays. To clarify whether a similar fluorescence response occurs in biological organisms, HeLa cells were pretreated with probe Zn5 (0.5 μmol·L- 1) and fluorescence imaging were collected for targeting lysosomes in living cells because of lysosomes' acidic microenvironment. The A375 tumor-bearing mice were used to assess the imaging ability of Zn5 in vivo. Mouse tumor xenografts were established by injection of A375 cells with 2×106 cells per flank. Probe (1 μg·g-1) was administered to mice by injection. Images were obtained using IVIS Spectrum CT Imaging System. RESULTS There is a 11-fold intensity increasing as the pH values changing from 8 to 2. The almost unchanged emission intensities suggest Zn5 is stable in both BSA and serum. Zn5 has negligible cytotoxicity for HeLa, 293T and CHO-K1 cells. Zn5 can selectively display lysosomes in living cells. Both the 2D and 3D images in vivo distinguish the tumor from other tissues with good fluorescence contrast. CONCLUSION The high chemical stability, emission in the Vis/NIR range, pH sensitivity, a pKa located in the tumor pH range, and low toxicity make Zn5 is suitable for application as a pH- sensitive fluorescent probe for bio-imaging.

Objective To analyze the cause of delayed hemorrhage after minimally invasive percu- taneous nephrolithotomy(MPCNL),and to summarize the experience in the interventional treatment of severe bleeding after MPCNL by superselective arteriolar embolization.Methods The clinical data of 3812 cases of MPCNL from June 1998 to July 2004 were reviewed.Of them,12 patients(11 men and 1 woman;mean age,45 years)who developed severe hemorrhage after MPCNL were identified.The cause of hemorrhage and the treatment results were analyzed.Results The rate of delayed hemorrhage after MPCNL was 0.31% (12/3812).The mean time to onset of severe bleeding was 10 d after MPCNL.Renal arteriography was per- formed in all 12 patients,showing 5 arteriovenous fistulas and 7 false aneurysms.Superselective arteriolar em- bolization for hemostasis was performed in all 12 cases.All these vascular abnormalities were successfully treated by superselective embolization.Follow-up showed that the hematuria disappeared and renal function recovered well.Conclusions Severe hemorrhage following MPCNL is a rare complication,the incidence of which is significantly lower than that of conventional PCNL.The cause is mainly the arteriolar injury of re- nal puncture passage.Superselective embolization provides effective control of bleeding and currently consti- tutes the treatment of choice based on our experience.

Chromosomal Proteins, Non-Histone ; metabolism ; DNA-Binding Proteins ; metabolism ; Diagnosis, Differential ; Follow-Up Studies ; Humans ; Infant ; Infant, Newborn ; Keratins ; metabolism ; Male ; Mucin-1 ; metabolism ; Phosphopyruvate Hydratase ; metabolism ; Rhabdoid Tumor ; metabolism ; pathology ; surgery ; Rhabdomyosarcoma ; metabolism ; pathology ; S100 Proteins ; metabolism ; SMARCB1 Protein ; Sarcoma ; metabolism ; pathology ; Sarcoma, Clear Cell ; metabolism ; pathology ; Skin Neoplasms ; metabolism ; pathology ; surgery ; Transcription Factors ; metabolism ; Vimentin ; metabolism

OBJECTIVETo evaluate the clinical effect of indirect cast post core by two different impression methods between silicone rubber impression and agar/alginate combination impression.

METHODS389 massive destruction teeth after root canal therapy were randomly divided into two groups (group A and group B). The teeth of group A was treated by silicone rubber impression material for making indirect post core impression. The teeth of group B was treated by agar/alginate combination impression for making indirect post core impression. The effect of two different impression methods was evaluated.

RESULTSThe success rate of making indirect post core impression by silicone rubber impression method was higher than that of making impression by agar/alginate combination impression method. Significant difference was found in making indirect post core impression between premolars and molars by two different impression methods (P<0.05), while there was no significant difference in making indirect post core impression of anterior teeth by two different impression methods (P>0.05).

CONCLUSIONThe clinical effect of making indirect post core impression by silicone rubber impression method is better than that of making impression by agar/alginate combination impression method.

Bicuspid ; Crowns ; Humans ; Post and Core Technique ; Root Canal Therapy