Objective To investigate the changes and clinical signficance of nitric oxide(NO) and endothelin(ET) in children with lymphoma.Methods NO and ET of 39 cases with lymphoma and 33 normal controls were examined by using nitrose reductase method and RIA method.Results Compered to normal controls,NO and ET were higher in children with lymphoma;smilar to normal controls in complete remission(CR) and partial remission(PR);relapse cases were higher than remission.Conclusions NO and ET could have relation to lymphoma in children,testing the changes of NO and ET have signficanc to the assistant diagnosis,observeing effect and judging prognosis.

Based on the analysis on the most common type of scientific research and clinical application of stem cells, including embryonic stem cells , hematopoietic stem cells and mesenchymal stem cells as the breakthrough point, discusses common phenomenon and problems of ethics , scientific research and clinical study the moral life science century new topic, hope scientists, physicians, ethicists, caused by the administrative departments for pub-lic health thought , promote stem cells healthy and steady development .

0.05),but the proportion of NRDS,the rate of mechanical ventilation dependence,and mortality had significant diffe-rences(Pa

ObjectiveTo observe changes of calcitonin gene related peptide (CGRP) and aetylcholinesterase (AChE) in motor endplate (MEP) after complete spinal cord injury (SCI) in the rat.MethodsSCI model of Wistar rats were established by transecting T10 spinal cord completely. The venters of the tibial anterior muscle were taken at 1, 2, 4 and 8 weeks postoperatively to carry out the experiment.The changes of CGRP and AChE in the MEP were investigated with immunohistochemical test.ResultsAfter complete SCI, the quantity and distribution of CGRP decreased in MEP of 1-week sample, and the changes of AChE were observed until 4-week sample, and although the staining was light and sparse, CGRP and AChE existed in MEP during 2 months postoperatively.ConclusionThere is degeneration of MEP in skeletal muscle after upper motor neuron injury; CGRP and AChE are related to the degeneration of MEP; CGRP test can show the changes of MEP earlier.

ObjectiveTo explore the diagnostic value of 16-slices CT in urinary calculus. Methods25 cases of suspected urinary calculus were examined by 16-slices CT and some of these images were reconstructed with MPR. ResultsIn the 25 casces CT found 21cases of urinary calculus,among them kidney calculus 22 cases,urinary tract calculus 13 cases.In 5 of 21 cases,urinary calculus were not found with US.In all 6 cases urinary calculus were not detected by KUB and/or IVP. Conclusion16-slices CT was a valuable method in diagnosing urinary calculus.

Nowadays, LAN can't meet the requirements of field communication, and WLAN is playing more and more important role for its strong transmission ability and high mobility. This paper introduces the application of WLAN to filed medicine.

Dermatitis, Occupational ; etiology ; Humans ; Trichloroethylene

Fetal heart sound is nonlinear and non-stationary, which contains a lot of noise when it is colleced, so the denoising method is important. We proposed a new denoising method in our study. Firstly, we chose the preprocessing of low-pass filter with a cutoff frequency of 200 Hz and the resampling. Secondly, we decomposed the signal based on empirical mode decomposition method (EMD) of Hilbert-Huang transform, then denoised some selected target components with wavelet soft threshold adaptive noise cancellation algorithm. Finally we got the clean fetal heart sound by combining the target components. In the EMD, we used a mask signal to eliminate the mode mixing problem, used mirroring extension method to eliminate the end effect, and referenced the stopping rule from the research of Rilling. This method eliminated the baseline drift and noise at once. To compare with wavelet transform (WT), mathematical morphology (MM) and the Fourier transform (FT), the SNR was improved obviously, and the RMSE was the minimum, which could satisfy the need of the practical application.
Algorithms ; Fetal Heart ; physiology ; Heart Sounds ; Humans ; Signal Processing, Computer-Assisted ; Signal-To-Noise Ratio ; Wavelet Analysis

Adult ; Humans ; Lipids ; blood ; Male ; Occupational Exposure ; Vanadium ; toxicity

Objective To study the reproductive health status in adolescents underwent repeated abortion and their psychosocial behavioral status and to understand their demanding on the knowledge of contraception, so as to provide suggestions on post abortion care. Methods From July ,2007 to May,2008,400 unmarried adolescents who visited doctors and met the following criteria were recruited in the study:①Younger than 24 years old;②Had artificial abortion at least once;③Have been pregnant for 5-10 weeks and asked for artificial abortion. Data were collected through symptom checklist 90 (SCL-90)and anonymous reproductive health questionnaire. The situation of reproductive tract infections (RTIs) were detected through gynecological examination and laboratory tests.The data was analyzed by SPSS 11.5 statistical software. Results The mean age of the subjects was 21. 18 ±2. 46 years. The mean time of previous artificial abortion was 1.96 ± 1.44,with 52% of ≥2 times. Aged less than 20 years old at the first abortion,having sex more than 3 times per week,more than 2 sex partners,and history of painless abortion were associated with repeated abortion in unmarried adolescents. The SCL-90 scores showed that the subjects had higher score of depression, terror, psychiatric symptoms, somatization, interpersonal sensitivity,anxiety and hostility factors than normal population (P < 0. 05). Of the subjects ,34. 5% had history of RTIs, and the current prevalence of RTI was 59. 5% ,and 58. 5% with one kind of RTI and 36. 0% with two kinds of RTI. Of these RTI patients,33. 5% did not present any clinical symptoms. Abortion for more than twice,first sex intercourse occurred at age younger than 18,history of RTI,sex intercourse of more than 3 time per week,multiple sex partners,especially18,history of RTI,sex intercourse of more than 3 time per week,multiple sex partners,especiallyhaving multi sex partner at the same, and poor sex sanitation were risk factors of RTI. Conclusions There are various reproductive health problems among repeated abortion adolescents in mental and physical aspects, lack of knowledge on reproductive health and contraception is the main reason. Improving post-abortion services will be helpful to prevent repeated abortion in adolescents and protect their physical and mental health.