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Immunohistochemistry in formalin-gel fixed tissues

dc.contributor.authorFerro, Amadeu Borges
dc.contributor.authorSantos, Ana Bastos
dc.contributor.authorFilipe, Joana Louro
dc.date.accessioned2014-04-22T14:47:15Z
dc.date.available2014-04-22T14:47:15Z
dc.date.issued2014
dc.description.abstractThere are several hazards in histopathology laboratories and its staff must ensure that their professional activity is set to the highest standards while complying with the best safety procedures. Formalin is one of the chemical hazards to which such professionals are routinely exposed. To decrease this contact, it is suggested that 10% neutral buffered liquid formalin (FL) is replaced by 10% formalin-gel (FG), given the later reduces the likelihood of spills and splashes, and decreased fume levels are released during its handling, proving itself less harmful. However, it is mandatory to assess the effectiveness of FG as a fixative and ensure that the subsequent complementary techniques, such as immunohistochemistry (IHC), are not compromised. Two groups of 30 samples from human placenta have been fixed with FG and FL fixatives during different periods of time (12, 24, and 48 hours) and, thereafter, processed, embedded, and sectioned. IHC for six different antibodies was performed and the results were scored (0–100) using an algorithm that took into account immunostaining intensity, percentage of staining structures, non-specific immunostaining, contrast, and morphological preservation. Parametric and non-parametric statistical tests were used (alpha = 0•05). All results were similar for both fixatives, with global score means of 95•36±6•65 for FL and 96•06±5•80 for FG, and without any statistical difference (P>0•05). The duration of the fixation had no statistical relevance also (P>0•05). So it is proved here FG could be an effective alternative to FL.por
dc.identifier.citationFerro AB, Santos AB, Filipe JL. Immunohistochemistry in formalin-gel fixed tissues. J Histotechnol. 2014;37(2):48-53.por
dc.identifier.doi10.1179/2046023614Y.0000000040
dc.identifier.otherDOI: http://dx.doi.org/10.1179/2046023614Y.0000000040
dc.identifier.urihttp://hdl.handle.net/10400.21/3514
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherManey Onlinepor
dc.relation.publisherversionhttp://www.maneyonline.com/doi/abs/10.1179/2046023614Y.0000000040?journalCode=hispor
dc.subjectFormalin gelpor
dc.subjectFixationpor
dc.subjectImmunohistochemistrypor
dc.subjectHistopathology laboratorypor
dc.titleImmunohistochemistry in formalin-gel fixed tissuespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage53por
oaire.citation.issue2por
oaire.citation.startPage48por
oaire.citation.titleJournal of Histotechnologypor
oaire.citation.volume37por
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor

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