Ultrastracture of cardiac muscle cell

The cardiac muscle cell.

The cardiac myocyte is the most physically energetic cell in the body, contracting constantly, without tiring, 3 billion times or more in an average human lifespan. By coordinating its beating activity with that of its 3 billion neighbours in the main pump of the human heart, over 7,000 litres of blood are pumped per day, without conscious effort, along 100,000 miles of blood vessels. A detaile...

The cytoskeleton of the cardiac muscle cell.

T he cytoskeleton of the cardiomyocyte has a special place among the subcellular biological structures, due to its complexity, its exceptional organisation, and to the multiple roles it plays. Cytoskeleton proteins and interactions among them are constantly being discovered. It has been demonstrated that mutations of these proteins, of different type and importance, are involved in the pathogen...

Ultrastructure of the dog cardiac muscle cell.

Stimulating cardiac muscle by light: cardiac optogenetics by cell delivery.

BACKGROUND After the recent cloning of light-sensitive ion channels and their expression in mammalian cells, a new field, optogenetics, emerged in neuroscience, allowing for precise perturbations of neural circuits by light. However, functionality of optogenetic tools has not been fully explored outside neuroscience, and a nonviral, nonembryogenesis-based strategy for optogenetics has not been ...

A Successful Resection of Cardiac Metastasis of Round Cell Liposarcoma

  Myxoid is a common type of liposarcoma. Cardiac metastasis of sarcoma is a rare diagnosis. Transthoracic echocardiography is a useful tool for beginning the diagnosis. Curative resection of metastasis and then combination systemic chemotherapy for advanced disease is recommended. We report a 50 year old woman who presented with a cardiac metastasis of high grade round cell liposarcoma to righ...