Background Orbital diffuse large B cell lymphoma(DLBCL) is a kind of malignant lymphoma with higher morbidity,but the systematic study is difficult for the fewer cases and the lack of orbital DLBCL cell line.Objective This study was to compare the differences or similarities of histopathological characteristics between orbital DLBCL and systemic DLBCL,and to discuss whether systemic DLBCL cell line is available to in vitro research of orbit DLBCL.Methods The histopathological specimens were collected from 3 orbital DLBCL patients and 15 systemic DLBCL patients in Tianjin Eye Hospital and Tianjin Tumor Hospital from 2004 to 2009.The prognosis of the patients was followed-up,and the survival curve was drew.The histopathological examination of the specimens was performed using hematoxylin and eosin staining,and the expressions of CD20,CD79α,CD45RO,CD10,BCL-6,mum-1,Ki-67 and surviving in the specimens were detected by immunochemistry.The results mentioned above were analyzed and compared between orbital DLBCL and systemic DLBCL.Results The histopathological examination showed that the centroblastic type was the primary form in both orbital DLBCL and systemic DLBCL,according with the diagnosis of DLBCL.The differences in the positive expression rate of CD20,CD79α,CD45RO,Ki-67,survivin were not statistically significant between the two types of DLBCL (P =0.167,0.442,1.000,1.000,0.442).Immunochemistry revealed that 3 orbital DLBCL patients were germinal center B-cell-like (GCB),and 2 of the patients showed the positive expression for BCL-6 and mum-1 as well as absent expression for CD10,but the other patient presented the absent expression for BCL-6,mum-1 and CD10.In 15 systemic DLBCL patients,7 were GCB type,with the positive expression for CD10 in all the 7 patients and absent expression for BCL-6 in 6 patients.In addition,in 8 of non-GCB type,3 appeared to be absent expressed for CD10 and BCL-6,and 5 were positive expressed for BCL-6 and mum-1 and absent expressed for CD10.No significant difference was found in the survival duration between the orbital DLBCL and systemic DLBCL (P =0.067).Conclusions There exists no clinically significant difference in the pathological features,the expression of tumor cell markers and prognosis in both orbital and systemic DLBCL.These two DLBCLs appear to be similar in epidemiology and clinical staging,inferring that systemic DLBCL cell line is available in the in vitro study of orbital DLBCL.

Background Recently, the morbidity of orbital lymphoma increased gradually, and we have made deeper research in pathology,therapy and pathogenesis of the disease.There were few reports of mice model of orbital lymphoma up to now for its lower morbidity and culture difficulty.Objective This study was to establish a mouse model of orbital diffuse large B cell lymphoma (DLBCL) by injection of systemic DLBCL cell line pfeiffer.Methods Ten SPF BALB/c mice and 5 nod-SCID mice were radiated firstly using 137Cs,with the absorption dose 3.5 Gy in the BALB/c mice and 2.6 Gy in the nod-SCID mice,and then pfeiffer cells were intraobitally injected in 4eyes of BALB/c mice (orbital injection group) and suncutaneously injectied in 4 eyes of BALB/c mice and 4 eyes of nod-SCID mice (subcutaneous injection group) at the concentration of 1.5×l08/ml.The developing status of tumors were examined once per day and the growth curve was drawn.The tumors and nearby lymph nodes were obtained 54 days after injection for the preparation of 4 μm thickness of serial sections.Hemotoxylin-eosin staining was used to examine the histopathology of the tumors, and immunochemistry was employed to detect the expressions of CD20,CD79α and CD45RO proteins.The tumors were typed based on the expressions of CD10, BCL-6 and mum-1 in the specimens,and the expressions of Ki-67 and survivin were assyed to assess the prognosis of the tumor.All the results were compared with 3 diagnosed human orbital DLBCL sections.The use and care of the mice complied with Chinese Administration Rule of Laboratory Animal.Results The tumor formation rates were 100％ in both the orbital injection group and subcutaneous injection group, and the tumors grew much faster in nod-SCID mice than BALB/c mice.Infiltration of tumor cells in lymph nodes were found in the subcutaneous injection group rather than the orbital injection group.The pathological features were accordant among the orbital injection group, subcutaneous injection group and human orbital DLBCL sections.The number of ＜50％ and ≥50％ CD20+ specimens was 3 and 5,CD79αwas 2 and 6,CD45RO was 8 and 0 in the BALB/c mice;while that in the nod-SCID mice was 1 and 3 in CD20,0 and 4 in CD79α,4 and 0 in CD45RO;the number of human orbital DLBCL specimens was 1 and 2 in CD20,1 and 2 in CD79α,2 and 1 in CD45RO,without significant differences among them (all at P=1.00).No significant differences were seen in Ki-67+ number and survivin+ number among the BALB/c mice, nod-SCID mice and human orbital DLBCL specimens (all at P=1.00).The detection of CD10,BCL-6 and mum-1 expressions indicated that the tumors of BALB/c mice,nod-SCID mice and human orbital DLBCL specimens all were the non-germinal center B cell-like types.Conclusions The orbital and subcutaneous DLBCL mouse models are successfully established by injection of pfeiffer cell line.There are the same findings and features in biological behavior, pathology and immunohistochemistry in orbital,subcutaneous models with human orbitl DLBCL.Nod-SCID mice appear to be more suitable for the growth of lymphoma cells.

Objective To analyze the value of diagnosis and differential diagnosis of dynamic renal scintigraphy via observation on renal size,imaging,uptake of tracer agent and functional parameters in acute and chronic renal failure.Methods Ten patients with acute renal failure and fifteen patients with chronic renal failure were confirmed using clinical and biochemical analyse,all patients underwent 99 Tc m-EC and 99 Tc m-DTPA dynamic renal scintigraphy. Two groups functional imaging were analyzed separately,then counted out kidney and aorta mean counts specific value (K/A),kidney uptake high peak value (KP),kidney size (Area),effective renal plasma flow(ERPF),glomerular filtration rate(GFR).Results There was significant difference among above parameters in two groups (P

Objective To evaluate the therapeutic effect of Yin-Huang pills combined with Banlangen granule therapy on upper respiratory infection.Methods 120 cases of acute upper respiratory infection were randomly separated into an experiment group and a control group.The experiment group was treated by Yin-Huang pills combined with Banlangen granule;while the control group was treated by Yin-Huang pills.Results There was significant difference of cure rate between the experiment group(75%)and the control group(51.6%),with P＜0.01.There was no significant difference of total effective rate between the experiment group(96.6%)and the control group(88.3%),with P＞0.05.Conclusion Yin-Huang pills combined with Banlangen granule therapy was more effective in controlling acute upper respiratory infection,and this therapy caused few adverse effects.

Objective To investigate the radionuclide 99m TcO 4 imaging parameters of thyroid in hyperthyroid patients. Methods 200 patients with hyperthyroidism including 153 women and 47 men received radionuclide 99m TcO 4 plane scintigraphy for thyroid. Then the size and anatomic configuration of thyroid, tracer distribution, and the pyramid lobe appearance were analyzed.Results 400 images of thyroid lobes were obtained from 200 patients. The length of single thyroid lobe in 169 patients were between 5cm and 7cm, in 33 patients exceeded 7cm, and in 38 patients was less than 5cm. The width of single thyroid lobe in 144 patients were between 2.5cm and 3.5cm, in 6 patients exceeded 3.5cm, and in 85 patients ware less than 3.5cm. 61% of patients had the widened narrow part of thyroid. The tracer evenly distributed in most patients, and small multinodular thyroid and single nodular thyroid were found only in 9.0% and 3.2% patients respectively. Pyramid lobe appeared in 12 patients.Conclusion SPECT imaging paremeters of the thyroids in hyperthyroid patients mainly were a diffuse goiter with the widened narrow part of thyroid and without nodule and pyramid lobe.

0 05).Conclusions Double phase 99 Tc m-MIBI imaging is a promising technique for localization of parathyroid adenomas. We consider that the patients should undergo the noninvasive imaging procedures before their initial neck exploration.

Objective To monitor the activities of orbicularis oculi muscle by analyzing the electroneurogram (ENG) of its innervating nerve. Methods The ENG was recorded in vivo by a cuff electrode implanted around a dog’s zygomatic branch of facial nerve. The differences between the ENG during relaxing period of the orbicularis oculi muscle and during the constricting period were analyzed to explore a way to monitor the muscle activities. Results The ENG signals indicating occurrences of eye blinking events were extracted in the study. Time-frequency analysis showed that there was no ENG difference when the orbicularis oculi muscle was in relaxing periods no mater whether it was in the nature eye-opening period or in the interval of eye blinking. The ENG of orbicularis oculi muscle in constricting period was different from the ENG in relaxing period at amplitude and frequency. Conclusion It is feasible to monitor the orbicularis oculi muscle activities by ENG analysis.

AIM: To investigate the role of epigenetic modification in Pdx-1 gene transcription and expression, and to compare the differences between epigenetic modifications of Pdx-1 gene promoter in various cell types of mice. METHODS: The promoter DNA methylation and histone modification status of Pdx-1 and MLH1 genes in NIT-1 cells, NIH3T3 cells and mouse embryonic stem cells were measured by chromatin immunoprecipitation-real time PCR method. The expression levels of these genes in the three cell lines were measured by real time RT-PCR. The relation between epigenetic modifications and gene expression was analyzed. RESULTS: (1) Compared to mES cells, there was lower DNA methylation and higher H3K4m3 modification levels in the promoter of Pdx-1 gene in NIT-1 cells (P<0.05). DNA methylation, H3 acetylation, H3K4m3 and H3K9m3 modification levels in the promoter of Pdx-1 gene in NIH3T3 cells were distinctly increased (P<0.05). (2) Pdx-1 gene transcription expressed only in NIT-1 cells. The Spearman's rho between Pdx-1 gene expression and DNA methylation (r=-0.802,P<0.01) was observed. The Pearson correlation between Pdx-1 gene expression and H3K4m3 modification (r=0.997,P<0.01) was also found. The Spearman's rho between Pdx-1 gene expression and H3K9m3 modification (r=-0.879,P<0.01) was observed. (3) No correlation between housekeeper MLH1 gene expression and epigenetic modification was found. CONCLUSION: DNA methylation, H3K4m3 and H3K9m3 modification coordinated participate to regulate and control the expression of Pdx-1 gene. It is of great significance to the differentiation of β cells from ES cells.

Objective To investigate relativity between the epidemiology of HPV and cervical carcinoma in Dali region,Yunnan province,through detecting the 13 high-risk human papillomavirus infection and Thinprep cytologic test in 2153 cases.Methods Real-time PCR was used to detect the 13 high-risk HPV (16,18,31,33,35,39,45,51,52,56,58,59,68) in2153 cases and 1604 cases were checked with Thinprep cytologic test.Results In 2153 samples,260 cases were infected with HPV,with the positive rate of 12.08％.The highest positive rates were ＞60 years old (18.18％),then ＞20 and ≤30 years old (14.41％);there was no significant difference in the positive rate among the various age groups (P =0.384).There were 1465 negative for intraepithelial lesion ormalignancy (NILM) cases (91.33％),86 atypical squamous cells of undetermined significance (ASC-US) and atypical squamous cells cannot exclude HSIL (ASC-H) cases (5.36％),32 low-grade squamous intraepithelial lesion cases (LSIL) cases (2.00％),21 high-grade squamous intraepithelial lesion cases (1.31％) through Thinprep cytologic test.The correlation coefficient is 0.893.Conclusions The infection rate of HPV in Dali region,Yunnan Province,has no significant difference among the various age groups.Application of 13 high-risk HPV infection test combined with Thinprep cytologic test could be more effective in screening cervical carcinoma.

Objective To investigate the effect of Tianma Gouteng Decoction on myocardial fibrosis in renovascular hypertensive rat (RHR). Methods RHR models were established by occlusion of renal artery with artery forceps. The collagen concentration and the contents of collagen type I,III were measured. Meanwhile, the weight of heart and left ventricle was determined. Results (1)Both Tianma Gouteng Decoction and Captopril could reduce the left ventricle weight index (LVI) and collagen contents (P