Objective To describe the clinicopathological features of histiocytic necrotizing lymphadenitis ( HNL). Methods Routine lymph node biopsies of 10 HNL cases were reviewed and their immunophenotyping were performed using S-P immunohistochemical staining. Results Histologically, HNL had discrete or integrated nodules variable in size in the paracortex,expecially in the interfollicular area,which were full of proliferating pleomorphic histocytes,transformed lymphocytes,and karyorrhectic debris without infiltration of the neutrophils, plasma cells and/or eosinophils. Immunohistochemistry revealed CD45RO + for transformed lymphocytes,CD68 +for histiocytes.and CD20 +for lymphocytes in the residual germinal centers. Conclusion The presence of pleomorphic histiocytes, transformed T-cells, and karyor-rhectic debris in the biopsy of lymph nodes, together with the absence of neutrophils support the diagnosis of HNL.

Adult virgin female mice were killed at each stage of the estrous cycle. The mid pieces of uteri were taken and fixed in 4% neutral formaldehyde, and stained with 0.5% toluidine blue at pH 0.5. It was found that mast cells in uterus were mainly distributed in the myometrium, only a few in the endometrium. The mast cell number was maximum in metestrus and minimum in proestrus, and this difference was highly significant (P

Accidents, Occupational ; prevention & control ; statistics & numerical data ; Humans ; Poisoning ; epidemiology ; prevention & control

Humans ; Myocardial Infarction ; complications ; therapy ; Myocardial Reperfusion Injury ; etiology ; therapy

A moderately thermoacidophilic iron-oxidizing bacterium,designated as strain MLY,was isolated from a coal spoil heap in China.The optimum of temperature for growth is 50℃～54℃.The optimum of pH is 1.2～1.4.The strain MLY is facultative autotroph and grows heterotrophically on yeast extract.It is able to oxidize ferrous iron(Fe 2+ ),pyrite(FeS 2),and elemental sulfur(S 0) autotrophically and mixotrophically in the presence of yeast extract.Autotrophic oxidation of elemental sulfur is relative weak.The comparison of ferrous iron and pyrite oxidation between strain MLY and A10 Thiobacillus ferrooxidans,strain indicated that MLY is one time faster than A10.

Objective To study the value of the neuron-specific enolase(NSE) in the serum of patients with cerebral stroke in diagnosis, seriousness and evaluation of prognosis. Methods The levels of NSE in the serum of 77 patients with cerebral stroke(36 cases with hemorrhage, 41 cases with infarction) were measured by radio-immunoassay (RIA)method.Results The serum leves of NSE both in cerebral infarction and cerebral hemorrhage patients were obviously higher than those of the control group( P 0.05). In the first week there was a positive correlation between NSE serum level and neurological deficit scores,the volume of haemorrhage, the volume of infarction( P 0.05) . Conclusion The NSE level in serum may be served as a objective index of seriousness and early diagnosis in stroke, but no helpful in differential diagnosis and evaluation of prognosis.

0.05). Conclusion The present data suggest that both GG252 and AA804 genotypes of the LTA gene are not the risk factors of MI. Further evaluations in adequately powered large studies are needed to confirm these findings.

To study the expression and significance of CD44 splice variant V6 in squamous cell carcinoma of the tongue. The expression levels of CD44v6 protein were determined immunohistochemically in 40 squamous cell carcinoma of the tongue specimens (24 non metastatic primary tumors and 16 metastatic lymph nodes), 12 squamous cell papilloma and 9 normal tongue mucosa using murine exon V6 specific monoclonal antibody. The CD44v6 overexpression was detectable in 29 of 40 squamous carcinoma of the tongue, in 2 of 12 squamous cell papilloma, in 0 of 9 mormal mucosa, P

Humans ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; metabolism ; Proto-Oncogene Proteins c-akt ; metabolism ; Signal Transduction

The selection of the prosthetic material determine the success or failure of hip arthroplasty. Currently, the metals, ceramics, polymer composites and carbon materials are the main prosthetic materials of artificial hip joint. They have some progresses in biocompatibility, elastic modulus,mechanical properties, useful life, but they still can't reach the ideal standard of design. In this essay, we mainly review the characteristics and applications of the current artificial hip joint materials through its classification in order to provide a reference for choosing appropriate hip joint materials in clinic and increasing characteristic of materials. We consider the polymer composites has more advantages such as biocompatibility, mechanical properties, corrosion resistance and price, even if it has shortages in abrasion resistance. As the researches of polymer composites are main focus on abrasion resistance, articular surface and strength,and its performances are increased fast, it has a wide prospect in future.
Animals ; Hip Dislocation ; surgery ; Hip Prosthesis ; standards ; utilization ; Humans