Objective To investigate the effect of eosinophils(EOS)in asthmatic guinea pigs airway and explore the mechanism of antiasthma by inhaled arsenic trioxide. Methods The guinea pigs asthma models were established with ovalbumin(OVA)challenge method,2 groups received inhaled different doses of arsenic trioxide,and three control groups respectively received normal saline inhaled and high dose of arsenic trioxide by intraperitoneal injection and dexamethasone(DEX)intraperitoneally. EOS invaded and apoptosis with all of the groups were assessed after 7 days intraperitoneal injection or inhalation. Results Compared with group of inhaled normal saline, both EOS invaded and apoptosis in bronchus submuconsa were significantly different(P0.05)among groups of inhaled low dose arsenic trioxide [2.0 mg(kg?d)]and intraperitoneal injection with higher dose arsenic trioxide[5.0 kg/(kg?d)]and DEX[10 mg/(kg?d)]for these two parameters. Conclusions The mechanism of arsenic trioxide antiasthma with arsenic trioxide can decrease EOS amount in bronchial submucosa and accelerate EOS apoptosis, and relieve bronchial inflammation in asthma. For inhaled lower dose arsenic trioxide or intraperitoneal injection with high dose arsenic trioxide ,the effect of EOS is equivalent. The antiasthma effect of inhaled lower dose arsenic trioxide[2.0 mg/(kg?d)]is equivalent to intraperitoneal injection higher dose[5.0 mg/(kg?d)],and may be safe comparatively. The mechanism of antiasthma by inhaled arsenic trioxide is the same with DEX.

Objective To explore the possible association of oxidative stress reaction with the mRNA expression of podocin in rats with adriarnycin(ADR)-induced nephrotic syndrome.Methods mRNA expression of podocin in renal cortex were investigated by in situ hybridization staining and semi-quantitative RT-PCR in ADR-induced nephrotic rats,the level of malondialdehyde(MDA), superoxide dismutase(SOD)and total antioxidative capacity(T-AOC) in renal cortex were measured, then the relationship between them was evaluated.Results In ADR rats, MDA increased at d7 and reached a significant higher level at d14 and d21;SOD decreased at d14 and persisted to d21; T-AOC decreased at d21.The podocin mRNA mostly expressed in cytoplasm of glomerular cells. Both the number and the intensity of positive cells increased notably as time progressed in ADR rats.The level of podocin mRNA expression showed no obvious changes at d7, while prominently increased at d14 and pesisted to d21 in ADR rats.There was significant correlativity between the mRNA expression of podocin and the level of MDA,SOD,T-AOC.Conclusion The mRNA expression of podocin is correlated with oxidative stress reaction in rats with ADR-induced nephrotic syndrome.

Female ; Granulosa Cell Tumor ; Humans ; Ovarian Neoplasms ; Thyroid Neoplasms

Objective To evaluate the performance of an improved skin prick test in the screening for allergens.Methods A total of 475 patients with chronic urticaria who aged from 3 to 81 years were enrolled in this study,and classified into the control group (n =235) and research group (n =240).Traditional and improved skin prick test were conducted in the control and research group respectively.The allergen detection rate was compared between the two test methods.Results The allergen detection rate was 65.4％ and 67.2％ respectively for the improved and traditional skin prick test,respectively (P ＞ 0.05).House dust mites were the most common sensitizing agent.Conclusion The improved skin prick test can offer reliable evidence for chnical diagnosis with a relatively convenient and safe procedure.

BACKGROUND: The pathological changes of osteoarthritis are similar to that of kaschin-beck disease, but the cause of the latter is still unclear,damage is more serious. From the comparison of pathology changes between them, we hope to find out an effective therapeutic method with the assistance of arthroscope basing on the experiences in osteoarthritis.OBJECTIVE: To make comparison of the histomorphological changes between osteoarthritis and kaschin-beck disease with knee arthroscope,which give clues to the diagnosis and selection of operative technique for kaschin-bock disease under arthroscope.DESIGN: Case control study.SETTING: Department of Orthopaedics, Shaanxi People's Hospital.PARTICIPANTS: Thirty-five patients who needed arthroscope surgery due to severer knee osteoarthritis were randomly selected from Department of Orthopaedics, Shaanxi People's Hospital between April 1998 and September 2000; Meanwhile 31 patients with knee joint functional obstacle caused by kaschin-beck disease (epidemic disease area) were randomly selected from Luochuan Hospital of Shaanxi Province in November 2001.METHODS: Japanese made OLYMPUS series color television arthroscope and surgery system were used to carry out knee joint operations in all participants. During the operation, video recording, postoperative editing, photographs, comparison and analysis were conducted, in order to find out the pathological changes of the two groups in knee joint synovium, patella, femur, tibia and meniscus with the assistance of arthroscope.RESULTS: Totally 66 patients were enrolled in this study and all endamage in Kaschin-beck disease and osteoarthritis: Injuries were graded into grade 0, 1, 2 and 3, there were 0,3,5,23 cases and 0,3,16,16cases correspondingly in kaschin-beck disease group and osteoarthritis cartilage damage was presented by big piece of cartilage peeled off, part of them came off leading to bone exposure, the exposed bone surface is uneven; while cartilage damage in osteoarthritis was presented by the wear of cartilage, moreover cartilage island was found remained in the exposed bone with the surface covered with fiber strips and the exposed observed in 24 patients with Kaschin-beck disease, 5 cases with coarse stress point and 19 cases with burr-like damage, amongst which there were 9 cases displayed both medial and lateral meniscus damages; in osteoarthritis group there were 16 cases showed meniscus damages including edge wears in11 cases and breakage in 5 cases.CONCLUSION: Cartilage damage in knee articular was obviously severer in Kaschin-beck disease than in osteoarthritis, although kaschin-beck disease is no matter resulting in serious knee joint damage, but its pathology changes are different from osteoarthritis, we should pay more attention to the peculiarity of big piece of cartilage peeling off during operations.

Objective To explore the value of brainstem auditory evoked potential(BAEP),visual evoked potential(VEP)and Revised Visual Retention Test(VRT)in detecting impairment of central nervous system in patients with acute leukemia(AL).Methods Neuropack-Ml type evoked potential machine(Japan)was used to check brainstem auditory evoked potential(BAEP)and visual evoked potential(VEP).BAEP,VEP and VRT were examined in 30 cases with acute leukemia(group AL)and in 30 age and sex matched healthy subjects as a control(groupC).Indexes of BAEP including peak latency(PL)of waves I ,IB ,V and inter-peak latency(IPL)of waves Ⅰ～Ⅲ,Ⅲ ～Ⅴ,Ⅰ～Ⅴand indexes of VEP(P100PL)were determined.VRT was accomplished meanwhile applying B method with C pattern,C method with D pattern,D method with E pattern.The correct scores and error scores were recorded separately.Results BAEP:the abnormal rate of the group AL was 23.3 %.Compared with control group,we found significant longer latency of wave Ⅲ、Ⅴ(P＜0.05)and significant elongation in the mean inter-peak latencies of Ⅰ～Ⅴ(P＜0.05).VEP:the abnormal rate of the group AL was 26.7% ,the P100 PL of the patients was longer than that in the control group(P＜0.05).VRT:the abnormal rate of the group AL was 33.3%.The results of VRT showed that the score in the group AL in D method with E pattern was lower than that in the control group(P＜0.05).Conclusion BEAP,VEP and VRT could detect the impairment of central nervous system in patients with acute leukemia sensitively,and give clues to early diagnosis of central nervous system leukemia(CNSL).

Objective To explore the clinical significance of preserving the intercostobrachial nerve (ICBN) in the radical resection of breast cancer. Method All of 140 cases of breast cancer with Ⅰ - Ⅲ a stage operable eligible,were randomly divided into the experimental group with 79 cases (7 cases were rejected, 1 case was lost) that patients received radical resection of breast cancer with preservation of ICBN,and the control group with 61 cases (2 cases were lost) that patients received routine radical resection of breast cancer based on the time of admission. Analyzed postoperative local recurrence and compared to sensory dysfunction of the two groups. Results There was no significant difference between the two groups of patients in the rate of postoperative local recurrence [0-4.2% ( 3/71 ) vs. 0-3.4% (2/59)] ( P ＞ 0.05 ). The local sensory disturbance of the experimental group [2.8% (2/71 )-11.3% (8/71)] was significantly lower than the control group [54.2%(32/59)-71.2%(42/59)], there was significant difference between the two groups (P ＜ 0.01 ). Conclusion Radical resection of breast cancer with preservation of ICBN is an ideal operation in breast cancer.

Objective To explore the insertion of the teaching contents of nursing in rural doctors'higher education,so as to increase their understanding of medical knowledge and improve their medical skills.Method 90 rural doctors of Grade 2014 were chosen as the research object,and according to their willingness to participate,they were divided into control group and observation group.The students in the control group were mainly taught by the relevant knowledge of clinical medicine,while nursing teaching content was inserted in the teaching of observation group.In the teaching process,firstly,the teaching contents of nursing were reorganized,and then the teaching content of clinical medicine was taken as the main line,according to the development of teaching content,flexibly inserting nursing teaching part.The results of the final examination of the internal medicine of the two groups were compared and the specific learning experience of rural doctors was investigated.SPSS 20.0 was used to analyze the data,the count data was expressed as percentage,and chi square test was performed.Results The number of students in the control group and the observation group whose subjective score was more than 40 was 17.65％ and 48.72％ respectively.The number of students scoring ＜30 points accounted for 23.53％ and 5.13％ of the total number of students,and there was a statistically significant difference between the two groups(P＜0.05).The observation group had a better learning experience,and had little influence on the learning of clinical medical knowledge.Conclusion In the stage of education for rural doctors,inserting the teaching contents of nursing can improve the teaching effect.

The new general photography system is composed of overhang of SX-YB2 departed from the mainframe of HITACHI Digital Fluoroscpic(model 110XF),topmanagement system of FSK302-1 and FSB302-1 and leveled adiogaphy system of F78-III.The filament heater circuit,rotating anode startup and running circui and X-ray produce circuit are mainly changed,and some circuits in power and filament heat are added.

Objective To establish a method predicting CTL epitopes of antigens in Yersinia pestis,which provides an effective research plan for epitnmics in Yersinia pestis.Methods CTL epitopes were predicted by nHLAPred.BIMAS and SYFPEITHI.Results CTL epitopes of LcrV antigen were detected as V8-16 NPQHFIEDL,V311-319 KYDSVMQRL and V258-264 SYNKDNNEL.Conclusions Prediction of CTL epitope can be used to make epitope mapping because of its hiigh accuracy.It may provide a reference for the epitope mapping plan.