420 research outputs found
Primary synovial sarcoma of the heart
Primary synovial sarcoma of the heart is very rare, accounting for 5% of cardiac malignancies.
Of the few cases reported in the literature to date, nearly all have had a very poor outcome.
We present a further case. This uncommon malignancy has no specific symptoms during its
development, which results in delayed diagnosis. Echocardiography, chest computed tomography,
and magnetic resonance imaging can provide effective information about this tumor.
With the identification of the characteristic and diagnostic chromosomal abnormality t(X; 18),
this malignancy will become increasingly recognized. Synovial sarcoma of the heart requires
surgical intervention to improve the prognosis. Adjuvant and/or genetic therapy pre- or postoperation
can help prolong life. Chemotherapy is usually recommended as it may benefit the
patients. The key to treatment in the future is to find new therapeutic agents. Further elucidation
of the effects of this chromosomal abnormality may lead to better-directed therapies in
future. (Cardiol J 2011; 18, 2: 128-133
Probabilistic Generative Transformer Language models for Generative Design of Molecules
Self-supervised neural language models have recently found wide applications
in generative design of organic molecules and protein sequences as well as
representation learning for downstream structure classification and functional
prediction. However, most of the existing deep learning models for molecule
design usually require a big dataset and have a black-box architecture, which
makes it difficult to interpret their design logic. Here we propose Generative
Molecular Transformer (GMTransformer), a probabilistic neural network model for
generative design of molecules. Our model is built on the blank filling
language model originally developed for text processing, which has demonstrated
unique advantages in learning the "molecules grammars" with high-quality
generation, interpretability, and data efficiency. Benchmarked on the MOSES
datasets, our models achieve high novelty and Scaf compared to other baselines.
The probabilistic generation steps have the potential in tinkering molecule
design due to their capability of recommending how to modify existing molecules
with explanation, guided by the learned implicit molecule chemistry. The source
code and datasets can be accessed freely at
https://github.com/usccolumbia/GMTransformerComment: 13 page
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