Objective To study the feature of MRI in ureter transitional cell carcinoma,to evaluate the diagnostic value in transitional cell carcinoma of ureter with MRI.Methods Heavily T_2-weighted fast spin echo pulse sequence,fat suppression pulse and MR urography(MRU)were performed.The MRI finding of the ureter transitional cell carcinoma were anlysed in 32 cases and were discssed with the review of literature.Results Fifteen lesions were located at the upper portionof the ureter,7 at mid portion and 10 at lower portion.Each case presented urinary obstruction,distention and uretal hydrocele.21 retrograde urleropyelogrhpy of nodular shaperal irregular,11 irregular the ureteral wall,10 dilate the ureter in 21 cases,11 infitrative lesion to grow in location,9 lymphanode to enlarge in surrounding of major arterial of abdominal and renal out in 11 cases.17—72 mm length the lesion,39 mm average,6—50 mm width the leion,17 mm average.Hypointense on T_1 WI and hyperintense on T_2 WI image in 23 cases,hyperintense on both T_1 WI and T_2 WI image in 5 cases,hypointense on T_1 WI and isointense on T_2 WI image in 2 case, slightly hypointense on both T_1 WI and T_2 WI images in 2 case.Ninteen homogeneous and 13 non homogeneous of signal in lesion,22 reliable and 5 suspicious diagnosis and 5 misdiagnosis in MRI. Conclusion The location,the shape,the spectrum of the tumor and change of surrounding tiessue were clear cuted in MRI,but further research in confirmation of the diagnosis.

A strain of yeast capable of hydrolyzing ethyl ester of racemic Ketoprofen with high enantioselectivity has been isolated from soil after two-step enrichment. The yeast was identified as Trichosporon brassicae. The process of growth and enzyme production was investigated. The catalytic performance of the resting cell of KET4 in kinetic resolution of Ketoprofen was also investigated. When the conversion of substrate reached 41% , enantiomeric excess of the (S) - Ketoprofen produced was 91 % , indicating a high enantiomeric ratio of 45.

OBJECTIVETo investigate the effect of noninvasive positive pressure ventilation( NIPPy) on the gene and protein expression of biquitin-proteasome of skeletal muscle in patients with acute exacerbation of chronic obstructive pulmonary disease(AECOPD).

METHODSSeven patients with AECOPD by NIPPV were used as the study group, meanwhile, 6 patients with AECOPD who refused NIPPV was the control group. The blood gas analysis, heart rate (HR) and mean arterial pressure (MBp) were monitored before and 14 days after treatment. A skeletal muscle biopsy was performed after 14 days of therapy. The mRNA expression of ribosomal protein S21 (RPS21), Ubiquitin, Ubiquitin combined with enzyme E2 (E2), Ubiquitin ligase E3 (E3) in skeletal muscle cell were measured by RT-PCR. The protein expression of mitochondrial aconitase (AC02), protease C3 (C3), ribosomal protein SLC16 (SLC16) were detected by Western blot.

RESULTSForteen days after treatment, the patients in NIPPV group got much better improvement in PaCO2, PaO2 and HR than that of the patients.in the control group (P < 0.05). The gene expression of RPS21,Ubiquitin, E2 and E3 in skeletal muscle cell on patients with NIPPV were obviously lower than that of the control group (P < 0.05, P < 0.01). Compared with that of the control group, the protein expression of C3 and AC2 increased significantly in the NIPPV group (P < 0.01). The protein expression of SLC16 was significantly lowered in the treated group (P < 0.01).

CONCLUSIONNIPPV can ameliorate the proteasome pathway and energy metabolic disorders in patients with AECOPD.

Humans ; Muscle, Skeletal ; metabolism ; Positive-Pressure Respiration ; Proteasome Endopeptidase Complex ; metabolism ; Pulmonary Disease, Chronic Obstructive ; metabolism ; therapy ; Ubiquitin ; metabolism

A new ultrasonic-assisted extraction (UANE) method coupled with solid phase extraction (SPE) using ultrasonic fountain was established for the extraction of eight common ginsenosides from leaves of Panax quinquefolium L. The extraction system has been designed and several experimental parameters,including the type and volume of extraction solvent,pH value and salt concentration of extraction solvent,type and volume of elution solvent,and amount of C18, extraction time were examined and optimized. Under the optimal conditions,the recoveries of ginsenosides were in the range of 96. 3% -110. 6%, the relative standard deviations (RSDs) were in the range of 2.8%-4.3%,indicating that the method has a good performance for the extraction of these ginsenosides. Compared with traditional UANE-SPE method, the modified method simplified the extraction device,shortened the extraction time and improved the extraction efficiency.

OBJECTIVETo verify the clinical efficacy of heat-sensitive moxibustion in treatment of knee osteoarthritis (KOA).

METHODSSixty cases of KOA were randomly divided into a heat-sensitive moxibustion group and a conventional moxibustion group, 30 cases in each one. Dubi (ST 35), Yanglingquan (GB 34), Zusanli (ST 36) and Heding (EX-LE 2) on the affected side were selected in two groups. In heat-sensitive moxibustion group, the techniques of circling moxibustion, sparrow-pecking moxibustion, moving moxibustion and mild moxibustion were applied. In conventional moxibustion group, the mild moxibustion was used, 2 to 3 cm far from the skin of the acupoints selected. Lysholm scale for the assessment of knee joint function was adopted to evaluate the efficacy. The scores of joint pain, morning stiffness, joint swelling and walking ability were compared before and after treatment in two groups.

RESULTSThe scores of joint pain, morning stiffness, joint swelling and walking ability after treatment were all apparently improved as compared with those before treatment in either group (all P < 0.05). The improvement in the above-mentioned indices in heat-sensitive moxibustion group was much more apparent as compared with that in conventional moxibustion group (all P < 0.01). The effective rate was 90.0% (27/30) in heat-sensitive moxibustion group and was 73.3% (22/30) in conventional moxibustion group. The effective rate in heat-sensitive moxibustion group was obviously superior to that in conventional moxibustion group (P < 0.01).

CONCLUSIONThe efficacy of heat-sensitive moxibustion is superior to that of conventional moxibustion in the treatment of KOA. This therapy can more significantly improve the symptoms and physical signs of the patients with KOA.

Acupuncture Points ; Aged ; Female ; Humans ; Locomotion ; Male ; Middle Aged ; Moxibustion ; Osteoarthritis, Knee ; physiopathology ; therapy ; Treatment Outcome

OBJECTIVETo investigate the anti-inflammatory effects on the vessel wall of rosuvastatin in apolipoprotein E-deficient mice.

METHODSEight-week-old apolipoprotein E-deficient mice fed a normal chow diet were treated with vehicle or various doses of rosuvastatin (1, 5, or 20 mg/kg) by subcutaneous injection for 2 or 6 weeks prior to sacrifice. Endothelial adhesiveness for monocytes was determined by functional binding assay. The expressions of vascular cell adhesion molecule-1 and monocyte chemotactic protein-1 in the vessel wall were detected by quantitative real-time polymerase chain reaction.

RESULTSEndothelial adhesiveness for monocytes was significantly attenuated after 2 or 6 weeks treatments with 5 or 20 mg/kg rosuvastatin. Rosuvastatin also significantly reduced the expressions of vascular cell adhesion molecule-1 and monocyte chemotactic protein-1 in the vessel wall.

CONCLUSIONThe anti-inflammatory effects of suvastatin might be responsible for attenuating the pathogenesis of atherogenesis in apolipoprotein E-deficient mice.

Animals ; Apolipoproteins E ; genetics ; Cell Adhesion ; drug effects ; Endothelium, Vascular ; cytology ; Fluorobenzenes ; pharmacology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Monocytes ; drug effects ; metabolism ; Pyrimidines ; pharmacology ; Rosuvastatin Calcium ; Sulfonamides ; pharmacology ; Vascular Cell Adhesion Molecule-1 ; metabolism

Objective To explore the application of event-related potentials (ERP) by positive, negative, and neutral face expression images in the evaluation of mood disorders in brain traumatic patients.Methods ERP was tested by face expression images in 24 patients mainly with anxiety and depression symptoms (depression group) and 19 patients mainly with hostile and suspicion symptoms (hostile group), respectively.The findings were compared with those of the control group.Results There were no significant differences, between the depression group and the hostile group, on latencies and amplitudes of late positive potential (LPP) induced by the three types of face expression images, except the amplitude induced by negative face expression image.Compared with the control group, the latencies were extended and the amplitudes were lower in both depression and hostile groups.Within each group, the difference of latencies induced by the three images was not significant.The amplitudes induced by negative face expression image was higher than those induced by positive and neutral face expression images, with significant differences in the hostile group and the control group (P＜0.05) but not in the depression group.Conclusion Changes in latencies and amplitudes of LPP could be an objective indicator in the evaluation of mood disorders of brain traumatic patients.The LPP induced by negative face expression images could be more meaningful for patients mainly with anxiety and depression symptoms.

A green, rapid and efficient method was developed for the extraction of 4 kinds of hosenkosides from the seeds of Impatiens balsamina L. The hosenkosides were extracted by ionic liquid, and then enriched by solid phase extraction. The effects of the kinds and volume of ionic liquid, pH value, ultrasonic time, solid phase extractant and eluent on the extraction fields were investigated and optimized. Under the optimum conditions, the recoveries of 4 kinds of hosenkosides were between 92. 1％ and 108. 2％ , the correlation coefficients were 0. 9945-0. 9975, and the detection limits were 1. 8-4. 5 μg / mL. The RSD values were all less than 3. 9％ . The experimental results showed that this method was fast, efficient, environmental protection. This study provided a reference for the extraction and enrichment of trace components in Chinese medicinal herbs.

OBJECTIVEIn order to find out the factors related to hemorrhagic fever with renal syndrome (HFRS) infection, and to evaluate the probability of ecdemic hantaviruses (HV) infection in rodents in Beijing areas.

METHODSRodents were collected in a large-scale railway station and a produce market with 'trap nights' method from April to May, 2004. The IgG reacting sera to HV antigen were detected using ELISA. The partial M and S segment of HV from captured rodent lung samples were amplified with RT-PCR. The PCR products were purified and sequenced. BLAST program was then used to perform on nucleotide pairwise alignment with all available sequence in GenBank. The alignment of the multiply nucleotide and the deduced amino acid sequences, together with phylogenetic analysis were completed with DNASTAR software.

RESULTSThe average population density was 3.49% (24/690). The overall seroprevalence of HV infection was 8.3% (2/24). RT-PCR positive rates were 8.3% (2/24). The nucleotide sequences of 356 bp region (1958 - 2313) of M segment obtained from 2 samples were all identified to Seoul virus (SEOV), with 7.6% heterogeneity. The dc501 strain from railway station was closely related to SD227 and Hebei4 from Shandong and Hebei provinces respectively. BjFT01 strain from the farm product market had more special nucleotide transitional mutations than other known SEOV from Beijing in GenBank. This strain, together with known HN71 from Hainan province, K24-E7 from Zhejiang province, L99 from Jiangxi province and R22 from Henan province, represented a monophylogentic linkage.

CONCLUSIONThe higher HV prevalence of rodents in transportation center was the potential and important risk for HFRS epidemic in Beijing. The increasing prevalence of M. musculus should call for attention. It was possible that SEOV in Beijing was imported by infected rodents through vehicles from other provinces.

Animals ; Antigens, Viral ; immunology ; China ; epidemiology ; Enzyme-Linked Immunosorbent Assay ; Hantavirus ; classification ; genetics ; isolation & purification ; Hantavirus Infections ; epidemiology ; immunology ; Hemorrhagic Fever with Renal Syndrome ; epidemiology ; Immunoglobulin G ; blood ; Lung ; virology ; Phylogeny ; Reverse Transcriptase Polymerase Chain Reaction ; Rodent Diseases ; epidemiology ; virology ; Rodentia ; Seroepidemiologic Studies

OBJECTIVETo investigate the changes of thyroxin and monocyte human leukocyte antigen-DR expression in senior patients with sepsis and explore their clinical significance.

METHODSAccording to the 2001 SCCM/ESICM/ACCP/ATS/SIS international sepsis definitions, 125 senior patients with sepsis free of thyroid conditions were divided into non-severe sepsis group (n=86) and severe sepsis group (n=39), with another 30 healthy subjects as the control. Thyroid function was assayed by chemoluminescence method in these patients and monocyte HLA-DR expression was determined by flow cytometry.

RESULTSCompared with the control group and non-severe sepsis cases, the levels of free T3 (FT3), free T4 (FT4), T3, T4 and monocyte HLA-DR expression were significantly lower in severe sepsis cases (P<0.05), but the levels of thyroid stimulating hormone (TSH) were comparable between the 3 groups (P>0.05). The non-severe sepsis cases showed significantly lower levels of FT3, FT4, T3, T4, TSH and monocyte HLA-DR expression than the control group (P<0.05). In severe sepsis group, the levels of FT3, FT4, T3, T4 and monocyte HLA-DR expression showed significant differences between the fatal cases and surviving cases (P<0.05).

CONCLUSIONThe levels of thyroxin and monocyte human leukocyte antigen-DR expression are obviously lower in senior patients with severe sepsis, and their detection may well indicate the severity of the condition and help make prognostic judgment.

Aged ; Aged, 80 and over ; Case-Control Studies ; Female ; HLA-DR Antigens ; blood ; immunology ; Humans ; Male ; Monocytes ; metabolism ; Pneumonia ; complications ; Sepsis ; blood ; etiology ; immunology ; Thyrotropin ; blood ; Thyroxine ; blood ; Triiodothyronine ; blood