2005
DOI: 10.1163/1568562054798554
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Preparation and characterization of a collagen/chitosan/heparin matrix for an implantable bioartificial liver

Abstract: A new type of collagen/chitosan/heparin matrix, fabricated by gelation of collagen/ chitosan with heparin sodium containing ammonia, was produced to construct livers by tissue engineering and regenerative engineering. The obtained collagen/chitosan/heparin matrix was found to be highly porous, swelled rapidly in PBS solution and was stable in vitro for at least 60 days in collagenase/lysozyme containing buffered aqueous solution (PBS, pH 7.4) at 37 degrees C. The collagen/chitosan/heparin matrix resulted in a … Show more

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Cited by 73 publications
(39 citation statements)
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“…Low-molecular-weight heparin can reduce or prevent development of signs/symptoms associated with post-thrombotic syndrome [102]. Heparin has been widely used to form an inner anticoagulant surface on various experimental and medical devices such as membranes [103,104], tubes and renal dialysis machines [105,106].…”
Section: Heparinmentioning
confidence: 99%
“…Low-molecular-weight heparin can reduce or prevent development of signs/symptoms associated with post-thrombotic syndrome [102]. Heparin has been widely used to form an inner anticoagulant surface on various experimental and medical devices such as membranes [103,104], tubes and renal dialysis machines [105,106].…”
Section: Heparinmentioning
confidence: 99%
“…This is in agreement with results from other investigators who have implanted various collagen:chitosan blends. [8][9][10][11]13,14 At 7 days the acellular and PA-seeded GCC scaffolds remain intact with no apparent remodeling. There are more cells present and greater cellular infiltration in the PA-seeded GCC scaffolds.…”
Section: In Vivo Characterizationmentioning
confidence: 99%
“…6 The crosslinking yields a hydrogel, which is advantageous in terms of mechanical properties to simulate adipose tissue. 7 Crosslinked collagen and chitosan blends in different forms have been employed to regenerate various tissue types, 6,[8][9][10][11][12][13][14] but they have not been exploited for adipose tissue engineering.…”
Section: Introductionmentioning
confidence: 99%
“…Недавно был предложен новый перспективный матрикс для имплантабельной биоискусственной печени, полученный при желировании коллаген\хитозана с гепарином. Гепатоциты, культивируемые на этом матриксе, обладали повышенной секрецией мочевины и триглицеридов в течение 25 дней [44].Было показано, что неклеточный печеночный матрикс (homologous acellular matrix, HAM) способствует лучшему выживанию и сохранению функций гепатоцитов крысы по сравнению с коллагеном [45].Higuchi A. c соавт.[46] изучали продукцию альбумина и мочевины гепатоцитами мыши, культивированными в течение 7 дней на мембранах из модифицированного поливинилового спирта (poly-vinylalcohol-co-ethylamine) с конъюгированными на них белками экстрацеллюлярного матрикса -коллагеном, витронектином и ламинином (PVA-EA-ECM). Иммобилизованные белки обеспечивали долговременное выживание гепатоцитов и стабильную продукцию альбумина и мочевины [46].…”
unclassified
“…Недавно был предложен новый перспективный матрикс для имплантабельной биоискусственной печени, полученный при желировании коллаген\хитозана с гепарином. Гепатоциты, культивируемые на этом матриксе, обладали повышенной секрецией мочевины и триглицеридов в течение 25 дней [44].…”
unclassified