
{"id":33696,"date":"2024-03-08T17:07:10","date_gmt":"2024-03-08T16:07:10","guid":{"rendered":"https:\/\/www.btitrainingcenter.com\/biochemical-and-biomechanical-characterization-of-an-autologous-protein-based-fibrin-sealant-for-regenerative-medicine\/"},"modified":"2025-01-30T10:01:24","modified_gmt":"2025-01-30T09:01:24","slug":"biochemical-and-biomechanical-characterization-of-an-autologous-protein-based-fibrin-sealant-for-regenerative-medicine-v2","status":"publish","type":"post","link":"https:\/\/www.btitrainingcenter.com\/pt-pt\/biochemical-and-biomechanical-characterization-of-an-autologous-protein-based-fibrin-sealant-for-regenerative-medicine-v2\/","title":{"rendered":"Biochemical and biomechanical characterization of an autologous protein-based fibrin sealant for regenerative medicine"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row content_text_aligment=&#8221;left&#8221; row_background_lines=&#8221;no&#8221;][vc_column][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3 class=\"title\">Abstract<\/h3>\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<p>Accidental events or surgical procedures usually lead to tissue injury. Fibrin sealants have proven to optimize the healing process but have some drawbacks due to their allogeneic nature. Autologous fibrin sealants present several advantages. The aim of this study is to evaluate the performance of a new autologous fibrin sealant based on Endoret\u00aePRGF\u00ae technology (E-sealant). One of the most widely used commercial fibrin sealants (Tisseel\u00ae) was included as comparative Control. E-sealant\u00b4s hematological and biological properties were characterized. The coagulation kinetics and the microstructure were compared. Their rheological profile and biomechanical behavior were also recorded. Finally, the swelling\/shrinkage capacity and the enzymatic degradation of adhesives were determined. E-sealant presented a moderate platelet concentration and physiological levels of fibrinogen and thrombin. It clotted 30 s after activation. The microstructure of E-sealant showed a homogeneous fibrillar scaffold with numerous and scattered platelet aggregates. In contrast, Control presented absence of blood cells and amorphous protein deposits. Although in different order of magnitude, both adhesives had similar rheological profiles and viscoelasticity. Control showed a higher hardness but both adhesives presented a pseudoplastic hydrogel nature with a shear thinning behavior. Regarding their adhesiveness, E-sealant presented a higher tensile strength before cohesive failure but their elastic stretching capacity and maximum elongation was similar. While E-sealant presented a significant shrinkage process, Control showed a slight swelling over time. In addition, E-sealant presented a high enzymatic resorption rate, while Control showed to withstand the biodegradation process in a significant way. E-sealant presents optimal biochemical and biomechanical properties suitable for its use as a fibrin sealant with regenerative purposes.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>[\/vc_column_text][vc_empty_space][vc_column_text]<\/p>\n<h3>Figures<\/h3>\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<p>[\/vc_column_text][vc_empty_space][\/vc_column][\/vc_row][vc_row content_placement=&#8221;middle&#8221; content_text_aligment=&#8221;center&#8221;][vc_column]<div class=\"qodef-image-gallery qodef-grid-list qodef-disable-bottom-space  qodef-ig-grid-type qodef-four-columns qodef-tiny-space  qodef-image-behavior-lightbox\">\n\t<div class=\"qodef-ig-inner qodef-outer-space\">\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig1_HTML.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-580]\" title=\"&lt;strong&gt;Fig. 1&lt;\/strong&gt; Coagulation assay results of both formulations after activation\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig1_HTML-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig2_HTML-1.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-580]\" title=\"&lt;strong&gt;Fig. 2&lt;\/strong&gt; Histological examination of both formulations using H&#038;E (A) and MGG (B) stained cross sections. High magnification view of the microstructure of the sealants using SEM imaging (C). Scale bars: 50\u2009\u00b5m for H-E and MGG, and 10\u2009\u00b5m for SEM\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig2_HTML-1-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig3_HTML-1.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-580]\" title=\"&lt;strong&gt;Fig. 3&lt;\/strong&gt; Rheological characterization of formulations. A, B Amplitude sweep data showing the storage modulus (G\u00b4) and the loss modulus (G\u00b4\u00b4). C, D A plot of the magnitude of the complex modulus (G*) and E, F the complex compliance |J*|\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig3_HTML-1-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig4_HTML-1.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-580]\" title=\"&lt;strong&gt;Fig. 4&lt;\/strong&gt; Rheological characterization of formulations. A, B Amplitude sweep data showing the tan \u03b4 score and C, D the percent elasticity within formulations\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig4_HTML-1-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig5_HTML-1.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-580]\" title=\"&lt;strong&gt;Fig. 5&lt;\/strong&gt; Rheological characterization of formulations. A, B A plot of the magnitude of the dynamic viscosity (\u03b7). C, D Amplitude sweep data showing the complex viscosity (\u03b7*)\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig5_HTML-1-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig6_HTML-1.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-580]\" title=\"&lt;strong&gt;Fig. 6&lt;\/strong&gt; Biomechanical tensile test of formulations. A Tensile strength. B Young\u00b4s modulus. C Extensibility. D, E Tensile curve profiles. * Statistically significant differences between sealants (p\u2009&lt;\u20090.05)\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig6_HTML-1-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig7_HTML.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-580]\" title=\"&lt;strong&gt;Fig. 7&lt;\/strong&gt; A Swelling\/shrinkage percentage of formulations. B Biodegradation rate of formulations. * Statistically significant differences between sealants (p\u2009&lt;\u20090.05)\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2024\/10\/10856_2024_6780_Fig7_HTML-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<\/div>\n<\/div>[vc_empty_space height=&#8221;50px&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<a itemprop=\"url\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/10856_2024_Article_6780-comprimido-1.pdf\" target=\"_blank\"  class=\"qodef-btn qodef-btn-medium qodef-btn-solid btnWebRosa2\"  >\n    <span class=\"qodef-btn-text\">Descarregar artigo<\/span>\n    <\/a>[\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n<\/div>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p><strong>J Mater Sci Mater Med. 2024 Mar 8;35(1):15<\/strong> Accidental events or surgical procedures usually lead to tissue injury. Fibrin sealants have proven to optimize the healing process but have some drawbacks due to their allogeneic nature. Autologous fibrin sealants present several advantages. The aim of this study is to evaluate the performance of a new autologous fibrin sealant based on Endoret\u00aePRGF\u00ae technology (E-sealant). One of the most widely used commercial fibrin sealants (Tisseel\u00ae) was included as comparative Control. <\/p>\n","protected":false},"author":2002,"featured_media":33095,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[158],"tags":[],"class_list":["post-33696","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-medicina-regenerativa-pt-pt"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/posts\/33696","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/users\/2002"}],"replies":[{"embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/comments?post=33696"}],"version-history":[{"count":2,"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/posts\/33696\/revisions"}],"predecessor-version":[{"id":35570,"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/posts\/33696\/revisions\/35570"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/media\/33095"}],"wp:attachment":[{"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/media?parent=33696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/categories?post=33696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/pt-pt\/wp-json\/wp\/v2\/tags?post=33696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}