Search PubMed⌕ Search

Biomedical subjects

Y A Ding

Publications and source records attributed to Y A Ding.

114 records · Page 7Linked to original sources

Spontaneous contrast in the pericardial sac caused by gas-forming organisms.

Purulent pericarditis is a life-threatening disease associated with a variety of microorganisms. The case presented herein has unusual manifestations of contrast echoes on two-dimensional echocardiography. To our knowledge, this is the first reported case of pericarditis caused by gas-forming group D Streptococcus and Klebsiella pneumoniae with pyopericardium, resulting in contrast echoes on the two-dimensional echocardiographic image.

Echocardiography↗

Cytokines and cell surface markers in prediction of cardiac allograft rejection.

Endomyocardial biopsy is generally used to quantify heart allograft rejection and guide immunotherapy. Biopsy, however, is invasive, costly, and risky. Since rejection requires lymphocyte activation, the purpose of this study was to assess alternative methods to evaluate rejection dynamics by investigating serum levels of cytokines and cell surface markers after heart transplantation. Interleukin-2-receptor bearing CD4+T (IL-2R/CD4) cell levels were higher in the peripheral blood of human transplant recipients with rejection grade 2 (p < 0.02). HLA-DR/CD3 levels were somewhat higher in rejection grade 2. There was no correlation between biopsy scores and serum levels of tumor necrosis factor (TNF-alpha), IL-2, or percentage of T cell, NK cell, B cell, CD4+T cell, CD8+T cell, HLA-DR/CD4, HLA-DR/CD8, IL-2R/CD3, IL-2R/CD8. Interleukin-1 (IL-1 beta) was not detectable in all of the samples. The current studies suggest that monitoring lymphocyte IL-2R/CD4 and HLA-DR/CD3 levels is useful in predicting cardiac transplant rejection.

Adult↗