Adult ; Frontal Lobe ; diagnostic imaging ; Humans ; Male ; Radiography ; Tuberculoma ; diagnosis ; diagnostic imaging

Objective To analyze the MR findings of vagal paraganglioma.Methods Six cases of vagal paraganglioma(4 benign and 2 malignant)were retrospectively analyzed with the emphasis on the location,MR signal intensity,dislocation of the carotid vessels,and the metastasis of the tumor.Results The tumors located in the superior(4 cases),middle(1 case)and inferior(1 case)neck,respectively,with right-sided in 4 cases and left-sided in 2 cases.The signal intensities of the six tumors were heterogeneous,combined with 'salt and pepper' appearance in 4 cases in which the 'pepper' appearance was more marked.On MR angiography performed in 4 cases,carotid arteries were found dislocated anteriomedially.Two cases were diagnosed as malignancies by the manifestations of destruction of surrounding bone,metastasis of bilateral lungs and/or the lymph nodes.Conclusion Vagal paragangliomas could be correctly diagnosed before surgery according to their locations and signal intensities.

AIM: To investigate inhibition of K562 cell growth by antisense drug targeted VEGF mRNA. METHODS: X7, 20-mer antisense sequences were selected, synthesized and modified with phosphorothioate. The drug was transfected into K562 cells in the present of lipofection. Cell growth was assayed by trypan blue dye exclusion assay and MTT. The level of VEGF protein in the media was determined by ELISA. The morphology of apoptotic cells were observed by Giemsa staining, and the propotion of apoptotic cells was detected by flow cytometry. RESULTS: The antisense drug inhibited growth of K562 and downregulated expression of VEGF protein significantly, compared with Scrambed control group and showed dose-dependent relation. Signs of apoptosis of K562 cells were not observed. CONCLUSION: Inhibition of K562 cell proliferation, but not cells apoptosis induction is the mechanism of inhibing growth of K562 cells by antisense drug targeted VEGF mRNA. At same time, VEGF has function of promoting K562 cell proliferation, and VEGF mRNA may be a new target attached by drugs. [

Objective To observe the efficacy of adjuvant intravitreal injection of anti-vascular endothelial growth factor (VEGF) therapy for advanced Coats disease.Methods This study is a retrospective case series study.Fourteen patients (14 eyes),presenting Coats Stages 3B and 4 (8 and 6 eyes,respectively) were enrolled.All the patients were treated with adjuvant intravitreal anti-VEGF therapy.The intravitreal anti-VEGF injections varied from 1 to 7,with a median injections of 2.14.In 14 eyes,combined therapy was subretinal fluid drainage in 4 eyes,photocoagulation in 2 eyes,vitrectomy in 8 eyes.The follow-up period was ranged from 4 to 36 months,with a median follow-up of 18.8 months.Visual acuity and retinal reattachment were observed in follow up.Results At last follow up,global suvival was 100.0％ with no enucleation performed in any patient because of disease progression.Except for 2 children who were unable to cope with the visual acuity test,visual acuity was improved in 2 patients,stable in 8 patients,and decreased in 2 patients.5 patients (35.7％) achieved in complete retinal reattachment,3 patients (21.4％) were succeed in partial retinal reattachment,and the remain 6 patients(42.8％) failed in retinal reattachment.Two patients developed cataract after vitrectomy,and no other adverse reaction was observed during follow-up.Conclusion Anti-VEGF therapy combined with classic treatments in advanced Coats disease can keep or impove the visual acuity in most patients by reducing of subretinal exudation.

Objective To investigate the expression of phospho-histone H3 (PHH3) protein in pancreatic neuroendocrine neoplasms (PNENs) and explore its potential value for pathological grading of PNENs.Methods Clinical and pathological data of 283 patients with PNENs treated in Changhai Hospital from December 2000 to May 2016 were retrospectively analyzed.PNENs tissue chip was prepared,and immunohistochemistry was used to examine the expression of PHH3 and Ki67.The receiver operating characteristic curve for PHH3 was drawn and the area under the curve(AUC) was calculated to determine the cutoff value for PNENs grading.Ki67 was used for PNENs grading according to domestic and intemational criteria for PNENs classification.The relationship of PHH3 and Ki67 classification with clinical pathological features and prognosis of PNENs as well as the correlation between the two classification methods were analyzed.Results Of 283 patients,132 were male and 151 were female,aged from 16 to 78 years old.The average age was (50 ± 1) years old.There were 44 cases with functional PNENs and 239 with non-functional PNENs.The diameter of tumors ranged from 1.1 cm to 17 cm and the average diameter was (4.1 ± 1.2)cm.According to the Ki67 standard,there were 127,116,33 and 7 cases of Grade G1,G2,pancreatic neuroendocrine tumor(PNET) G3 and pancreatic neuroendocrine cancer(PNEC) G3.According to the PHH3 standard,there were 118,119,3 8 and 8 cases of Grade G1,G2,PNET G3 and PNEC G3.There was a positive correlation between the two grading criteria (r =0.941,P ＜0.001).PHH3 expression and PNENs grading were not correlated with age,gender,tumor functional or not and tumor locations (all P ＞ 0.05),but were both positively correlated with tumor size,histological grade,lymph node metastasis,TNM stage and prognosis (all P ＜0.05).The average time of observing PHH3 and Ki67 staining per case in the immunohistochemistry of tissue chip was 9 min and 45 min,respectively.Conclusions Detection of PHH3 expression in PNENs can be used for the pathological diagnosis,grading and prognostic evaluation,which was more accurate and convenient than Ki67 criteria.

Dendritic Cells ; pathology ; Humans ; Leukemia, Myeloid ; pathology ; Plasmacytoma ; pathology

Practicing and learning platform was preliminary established by teachers to explore the feasibility and availability of ‘ interest-oriented research team’ in promoting professional competence among public health students.Public health students interested in interest-oriented research were recruited.Through this platform,students can learn professional knowledge and conduct practice earlier and complete their study facing the society,community and public.After four years' practice and exploration,students indeed improved the abilities of researching and practicing,therefore,the training model of ‘interest-oriented research team’ needs promoting.

The physiological and bio-marker function of D-acidic amino acids is now becoming the hot topic on metabolomics study and new drug discovery. A fully automated two-dimensional high performance liquid chromatography (2D-HPLC) system was established by using monolithic ODS column as the first dimension column, acetonitrile-trifluoro acetic acid-water (9: 0. 05: 92, V/ V) as the mobile phase; micro Chiralpak QD-1-AX column as the enantiomer separation column, 10 mmol/ L citric acid in methanol-acetonitrile (50: 50, V/ V) as the mobile phase for the second dimension, 4-fluoro-7-nitro-2,1,3-benzoxadiazole (NBD-F) as the fluorometrical derivative reagent. The separation efficiency ( Rs > 2. 5), determination sensitivity ( LOD =1 fmol) of acidic amino acids enantiomers were higher than those of existing methods, and an online confirmation of the enantiomers amounts was also achieved using this system. The recoveries were around 97-104% , RSD values for intra-day and inter-day precision were less than 5% for the acidic amino acids enantiomers in the biological samples. Furthermore, by analyzing the aging model senescence accelerated mouse prone 1 (SAMP1) mice which have low immunocompetence, the amounts of D-aspartic acid in thymus and spleen were determined as (206±18) and (264±21) nmol/ g, respectively. It is the first time that an obvious trend of the increasement of D-aspartic acid (p<0. 01) was observed in thymus and spleen of SAMP1 mice compare to senescence accelerated mouse resistant 1 (SAMR1) mice.

ObjectiveTo explore the clinical characteristics, diagnosis and treatment of neonatalCandida arthritis. Methods The clinical data from one case of neonatalCandida arthritis with swelling and pain in multiple joints as the ifrst symp-toms were reviewed.Results Boy born at 31 weeks' gestational age had the birth weight of 2100 g. The patients was admitted to neonatal intensive care unit after birth and treated with antibiotics for a long time due to infection. At 24 days after birth, blood culture showed the growth ofCandida albicans. At 29 days after birth, the bilateral knee joints showed swelling. TheCandida arthritis was diagnosed through X ray and joint-cavity lfuid culture. The patient was treated with Fluconazole for 13 weeks. When discharged, the joints swelling had been disappeared, while the muscle tension of the double upper limbs was signiifcantly weak. The shoulders had visible slight activities independently. The ifngers, wrists and elbows had less independent activities. The muscle tension of the double lower limbs was slight and the independent activity was more than upper limbs, but the extend was smaller than normal. The palmar grasp relfex was weak. The 30 months follow-up showed that each joint had even length, no abnormality and normal activities. The language and intelligence were normal.Conclusions NeonatalCandida arthritis is mostly combined with or secondary to systemic disseminated candidiasis, and the priority therapy is antifungal drugs. Surgical operation can be considered if necessary, which can improve the prognosis.

Objective To study the immunomodulatory property of Compound Shougong powder(SGS) on S180 tumor-bearing mice.Methods The S180 model of tumor-bearing mice by Kunming mice were prepared.Then,the tumor-bearing mice were randomized into the model group,positive control group,and SGS groups (29.25g/kg,19.50g/kg,9.75g/kg).Besides the normal group,the other groups were used intragastric administration of into tumor-bearing mice by one time,14 consecutive days.The carbon clearance,quantitative hemolysis and DNFB induced delayed-type hypersensitivity were applied to assay effects of SGS on nonspecific immunity,humoral immunity and cellular immunity.Results Compared with the model control group,in the SGS groups,the tumor-bearing mice with spleen and thymus index of organ improved (all P ＜ 0.05),and the clearance index and values of phagocytic index were elevated(all P ＜0.05),and the productions of IgM and IgG in serum and hemolysin in splenocytes were enhanced(all P ＜0.05),and the percentages of T cells expressing CD4+,CD8+ and the ratio of two subset of T lymphocyte increased,and the IL-2 production of spleen lymphocytes was also improved (all P ＜ 0.05).Conclusion SGS showed significant immunomodulatory property on tumor-bearing mice through specific and nonspecific immunity.