Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2000-10-4
pubmed:abstractText
Two potential obstacles to the creation of implantable tissue engineered heart valves are inadequate mechanical properties (ability to withstand hemodynamic stresses) and adverse host-tissue reactions due to the presence of residual nondegraded polymer scaffold. In an attempt to address these problems, we developed an in vitro cell culture system that provides physiological pressure and flow of nutrient medium to the developing valve constructs. It is anticipated that in vitro physical stress will stimulate the tissue engineered heart valve construct to develop adequate strength prior to a possible implantation. Long-term in vitro development will be realized by an isolated and thereby contamination-resistant system. Longer in vitro development will potentially enable more complete biodegradation of the polymeric scaffold during in vitro cultivation. This new dynamic bioreactor allows for adjustable pulsatile flow and varying levels of pressure. The system is compact and easily fits into a standard cell incubator, representing a highly isolated dynamic cell culture setting with maximum sterility, optimal gas supply and stable temperature conditions especially suited for long-term experiments.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1076-3279
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
75-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
New pulsatile bioreactor for in vitro formation of tissue engineered heart valves.
pubmed:affiliation
Department of Cardiovascular Surgery, The Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts 02115, USA. hoerstrup@hub.tch.harvard.edu
pubmed:publicationType
Journal Article, In Vitro