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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
271

Avaliação da liberação e permeação em membrana sintética do cetoconazol em cremes O/A / Avaliation the release and permeation in synthetic membrane of ketoconazole O/W creams

Guimarães, Marcelo 26 July 2001 (has links)
Cetoconazol é um fármaco antimicótico largamente utilizado e veiculado por diversas formas farmacêuticas. Apesar de ser comprovadamente eficaz, é uma substância muito hepatotóxica quando administrado por via oral. Por esse motivo justifica-se o seu emprego em preparações tópicas e sistemas transdérmicos. Essa substância apresenta razoáveis níveis de penetração elou permeação cutânea, mas esses níveis podem ser melhorados através da incorporação, às formulações, de substâncias denominadas promotores de permeação/penetração (enhancers). Essas substâncias têm a função de modificar a difusão dos fármacos através da pele. Neste trabalho, foi estudada a liberação/permeação do cetoconazol de cremes O/A contendo os promotores de permeação/penetração, propilenoglicol e uma solução alcóolica de mentol, empregados em associação e isoladamente na concentração de 0 a 5% p/p. O estudo foi conduzido in vitro, utilizando célula de Franz modificada com o emprego de membrana sintética de acetato de celulose. Foram preparadas e testadas dez formulações, a partir de uma fórmula de creme O/A não-iônico. Dentre as dez formulações estudadas aquela que apresentou melhores resultados quanto aos parâmetros de fluxo e coeficiente de permeabilidade, após uma hora do início do experimento, foi uma formulação que apresenta 1% p/p de propilenoglicol e 1% p/p de solução alcoólica de mentol. / Ketoconazole is an antifungal drug and is largely employed in many delivery systems and dosage forms. Oral administration is not recommended because of its hepatotoxic effects, so topical preparations are employed. This drug shows skin penetration and/or permeation levels, but these levels may be enhanced by the addition of enhancers. These substances modify the diffusion of drugs through skin. In this work, the liberation/permeation of ketoconazole from, O/W creams was studied. These creams have propylene glycol and na alcoholic menthol solution as enhancers, in a range from 0 to 5%w/w. It was an in-vitro experiment, employing Franz modified cells and synthetic cellulose membrane Ten nonionic O/W creams were made and tested. Among the ten tested formulations the one which showed best results in flux and permeability coefficient, after 1 hour, was a formulation which has 1 % w/w of menthol alcoholic solution concentrations.
272

Efeito do tratamento combinado com tretinóina e ácido glicólico na abertura bucal de pacientes com seqüela de queimadura / Combined tretinoin and glycolic acid treatment for improvement of the mouth opening in burned patients

Salles, Alessandra Grassi 20 January 2003 (has links)
O processo de reparação tecidual evolui tardiamente com alteração das propriedades físicas da pele, cuja gravidade varia, entre outros fatores, em função da profundidade original da lesão. Clinicamente a pele é seca, descamativa, discrômica e com diminuição da elasticidade, especialmente em cicatrizes hipertróficas. As características do tegumento pós-queimadura podem ser melhoradas com agentes de uso tópico normalmente utilizados em patologias como acne e fotoenvelhecimento. Foram avaliados 77 pacientes portadores de seqüela de queimadura peri-oral, entre seis e 46 anos de idade. O tipo de tegumento foi classificado como restaurado, quando epitelizado espontaneamente, ou enxertado. O tratamento tópico consistiu de tretinoína (0,01-0,05%) e ácido glicólico (5-7%) durante três meses. Duas distâncias foram medidas com paquímetro digital em abertura bucal máxima, a inter-dentária (D) e a inter-labial (L). Houve aumento significativo (p£0,01) de D e L nos grupos tratados quando comparados aos respectivos controles, tanto nos pacientes com tegumento restaurado como nos enxertados. O aumento de L foi significativamente maior que D. Sugerimos a utilização da medida inter-labial como parâmetro complementar à medida inter-incisal como método de avaliação indireta da elasticidade cutânea no tegumento pós-queimadura. / Tissue repair processes evolve with alterations of the cutaneous physical properties, which are proportional, among other factors, to the original depth of the lesion. At examination, the skin is dry, dyschromic and less elastic, specially in hypertrophic scars. Post-burn skin characteristics can be improved by topical agents regularly used in pathologies like acne or photodamage. We evaluated 77 patients who had peri-oral burn sequela. The ages ranged from six to 46 years old. The tegument was classified as restored, when spontaneously healed, or skin grafted. The topical treatment consisted of tretinoin (0,01-0,05%) and glycolic acid (5-7%) for three months. Inter-incisal (D) and inter-labial (L) distances were measured at maximal mouth opening with a digital pachymeter. Both inter-incisal and inter-labial distances increased significantly in the groups treated when compared to respective controls (p£0,01). This fact was similar in both types of tegument. Inter-labial distance (L) increased significantly more than D. We suggest its use as a complementary measure to inter-incisal distance for indirect evaluation of skin elasticity in the post-burn tegument.
273

Avaliação da liberação e permeação em membrana sintética do cetoconazol em cremes O/A / Avaliation the release and permeation in synthetic membrane of ketoconazole O/W creams

Marcelo Guimarães 26 July 2001 (has links)
Cetoconazol é um fármaco antimicótico largamente utilizado e veiculado por diversas formas farmacêuticas. Apesar de ser comprovadamente eficaz, é uma substância muito hepatotóxica quando administrado por via oral. Por esse motivo justifica-se o seu emprego em preparações tópicas e sistemas transdérmicos. Essa substância apresenta razoáveis níveis de penetração elou permeação cutânea, mas esses níveis podem ser melhorados através da incorporação, às formulações, de substâncias denominadas promotores de permeação/penetração (enhancers). Essas substâncias têm a função de modificar a difusão dos fármacos através da pele. Neste trabalho, foi estudada a liberação/permeação do cetoconazol de cremes O/A contendo os promotores de permeação/penetração, propilenoglicol e uma solução alcóolica de mentol, empregados em associação e isoladamente na concentração de 0 a 5% p/p. O estudo foi conduzido in vitro, utilizando célula de Franz modificada com o emprego de membrana sintética de acetato de celulose. Foram preparadas e testadas dez formulações, a partir de uma fórmula de creme O/A não-iônico. Dentre as dez formulações estudadas aquela que apresentou melhores resultados quanto aos parâmetros de fluxo e coeficiente de permeabilidade, após uma hora do início do experimento, foi uma formulação que apresenta 1% p/p de propilenoglicol e 1% p/p de solução alcoólica de mentol. / Ketoconazole is an antifungal drug and is largely employed in many delivery systems and dosage forms. Oral administration is not recommended because of its hepatotoxic effects, so topical preparations are employed. This drug shows skin penetration and/or permeation levels, but these levels may be enhanced by the addition of enhancers. These substances modify the diffusion of drugs through skin. In this work, the liberation/permeation of ketoconazole from, O/W creams was studied. These creams have propylene glycol and na alcoholic menthol solution as enhancers, in a range from 0 to 5%w/w. It was an in-vitro experiment, employing Franz modified cells and synthetic cellulose membrane Ten nonionic O/W creams were made and tested. Among the ten tested formulations the one which showed best results in flux and permeability coefficient, after 1 hour, was a formulation which has 1 % w/w of menthol alcoholic solution concentrations.
274

Funktionelle Ergebnisse nach indirekt laryngoskopischer Abtragung benigner Befunde der Stimmlippen in Oberflächenanästhesie / Results after indirect laryngoscopic surgery of benign tumours in topical anaesthesia.

Arand, Katharina 06 April 2011 (has links)
No description available.
275

Дискурс-картины мира и кортежного взаимодействия элитарных средств информации / Elitinės žiniasklaidos pasaulėvaizdžio ir kortežinės sąveikos diskursas / Discourse-picture of the world and discourse-picture of cortege reciprocity presented in elite media

Popova, Aliona 16 June 2010 (has links)
Объект исследования: дискурс элитарных средств информации (от англ. elite media ― термин, зафиксированный в англоязычной специальной литературе (Jamieson 1992). В работе исследуются три «отдельных случая» (case studies), три разных по объему содержательных пространства таких языковых знаков как статья газетного издания, рубрика журнала и отдельный выпуск издания. А именно: одна из статей, опубликованных в воскресном приложении «Domenica» к газетному итальянскому изданию «Il Sole 24 Ore»); одна из рубрик англоязычного журнала «Harvard Business Review»); один из выпусков англоязычного журнала «The Lion»). "Harvard Business Review" — самое авторитетное англоязычное журнальное издание по менеджменту [www.harvardbusinessreview.com]. "Il Sole 24 Ore" — влиятельное политико-финансово-правовое газетное издание Италии [www.giornalilocali.it/quotidiani/il-sole-24-ore.htm]. Выбор журнала "The Lion" дополняет выборку исследования и является международным клубным журнальным изданием закрытого типа, распространяемое по подписке исключительно среди членов клуба (Lions Club International – самая крупная элитарная благотворительная организация в мире). Методологическая основа исследования: каузально-генетическая теория, репрезентирующая белорусскую школу дискурс-анализа (см. работы Ухвановой-Шмыговой, Поповой, Маркович, Савич, Курчак). Каузально-генетическая теория ориентирована на изучение функционального многопланового содержания сложных языковых знаков; включает в ядро содержания... [полный текст, см. далее] / Tyrimo objektas: elitinės žiniasklaidos diskursas (elite media – terminas, vartojamas anglų literatūroje (Jamieson 1992)). Darbe nagrinėjami trys „atskiri atvejai“ (case studies), trys skirtingo dydžio turiningos kalbos ženklų erdvės – laikraštinio leidinio straipsnis, žurnalo rubrika ir atskiras leidinio leidimas. Tai yra: vienas iš straipsnių, išspausdintų italų leidinio „Il Sole 24 Ore“ sekmadieniniame priede „Domenica“; viena iš angliško žurnalo „Harvard Business Review“ rubrikų; vienas iš angliško žurnalo „The Lion“ leidimų. „Harvard Business Review” – pats autoritetingiausias angliškas žurnalas apie vadybą [www.harvardbusinessreview.com]. „Il Sole 24 Ore“ – įtakingas politinis, finansinis ir teisinis Italijos laikraštis [www.giornalilocali.it/quotidiani/il-sole-24-ore.htm]. Pasirenkant žurnalą „The Lion” buvo papildyta tyrimo medžiaga – tai klubinis uždaro tipo žurnalinis leidinys, platinamas pagal prenumeratą tik klubo nariams (Lions Club International – didžiausia pasaulio elitinė labdaros organizacija). Tyrimo metodologinis pagrindas: kauzalinė-genetinė teorija, reprezentuojanti baltarusių diskurso analizės mokyklą (žr. Uchvanovos-Šmygovos, Popovos, Markovič, Savič, Kurčiak darbus). Kauzalinė-genetinė teorija skirta tyrinėti sudėtingų kalbos ženklų daugiaplanį funkcinį turinį; pagal ją turinio branduoliui priklauso referentinė (informacija apie bendravimo dalyką) ir kortežinė (informacija apie komunikacijos dalyvius – bendravimo kortežą), ženklinė-referentinė ir... [toliau žr. visą tekstą] / Discourse of elite media is my research field. Elite media define outlets or programmes having a (inter)national impact, although their audience may be relatively small and geographically limited; these media are opinion leaders; they are an elite group that affects the decisions made in other media (Jamieson, Kathleen Hall 1992). There are three case studies covered in the research paper. The case studies are based on different in size and volume printed elite media texts, and they are: one of the articles published in the Sunday Supplement Domenica to Italian newspaper Il Sole 24 Ore; one of the sections published in the Harvard Business Review magazine; one of the issues of The Lion magazine. The Harvard Business Review is pre-eminent in the financial and top-management community [www.harvardbusinessreview.com]. The Il Sole 24 Ore is considered to be a professional setter of standards in Italy; it is trusted, respected, and used by other journalists [www.giornalilocali.it/quotidiani/il-sole-24-ore.htm]. The Lion magazine is an international club magazine and is distributed on subscription basis exclusively among members of the Lions Club International which is the largest elite charity organization in the world. Causal-genetic theory representing Belarusian school of discourse-analysis is a core methodology used in my research (Oukhvanova, Popova, Markovich, Savich, Kurchak). Causal-genetic theory (hereinafter CGTh) is a contribution to the study of functional and... [to full text]
276

Discourse-picture of the world and discourse-picture of cortege reciprocity presented in elite media / Elitinės žiniasklaidos pasaulėvaizdžio ir kortežinės sąveikos diskursas / Дискурс-картины мира и кортежного взаимодействия элитарных средств информации

Popova, Aliona 16 June 2010 (has links)
Discourse of elite media is my research field. Elite media define outlets or programmes having a (inter)national impact, although their audience may be relatively small and geographically limited; these media are opinion leaders; they are an elite group that affects the decisions made in other media (Jamieson, Kathleen Hall 1992). There are three case studies covered in the research paper. The case studies are based on different in size and volume printed elite media texts, and they are: one of the articles published in the Sunday Supplement Domenica to Italian newspaper Il Sole 24 Ore; one of the sections published in the Harvard Business Review magazine; one of the issues of The Lion magazine. The Harvard Business Review is pre-eminent in the financial and top-management community [www.harvardbusinessreview.com]. The Il Sole 24 Ore is considered to be a professional setter of standards in Italy; it is trusted, respected, and used by other journalists [www.giornalilocali.it/quotidiani/il-sole-24-ore.htm]. The Lion magazine is an international club magazine and is distributed on subscription basis exclusively among members of the Lions Club International which is the largest elite charity organization in the world. Causal-genetic theory representing Belarusian school of discourse-analysis is a core methodology used in my research (Oukhvanova, Popova, Markovich, Savich, Kurchak). Causal-genetic theory (hereinafter CGTh) is a contribution to the study of functional and... [to full text] / Tyrimo objektas: elitinės žiniasklaidos diskursas (elite media – terminas, vartojamas anglų literatūroje (Jamieson 1992)). Darbe nagrinėjami trys „atskiri atvejai“ (case studies), trys skirtingo dydžio turiningos kalbos ženklų erdvės – laikraštinio leidinio straipsnis, žurnalo rubrika ir atskiras leidinio leidimas. Tai yra: vienas iš straipsnių, išspausdintų italų leidinio „Il Sole 24 Ore“ sekmadieniniame priede „Domenica“; viena iš angliško žurnalo „Harvard Business Review“ rubrikų; vienas iš angliško žurnalo „The Lion“ leidimų. „Harvard Business Review” – pats autoritetingiausias angliškas žurnalas apie vadybą [www.harvardbusinessreview.com]. „Il Sole 24 Ore“ – įtakingas politinis, finansinis ir teisinis Italijos laikraštis [www.giornalilocali.it/quotidiani/il-sole-24-ore.htm]. Pasirenkant žurnalą „The Lion” buvo papildyta tyrimo medžiaga – tai klubinis uždaro tipo žurnalinis leidinys, platinamas pagal prenumeratą tik klubo nariams (Lions Club International – didžiausia pasaulio elitinė labdaros organizacija). Tyrimo metodologinis pagrindas: kauzalinė-genetinė teorija, reprezentuojanti baltarusių diskurso analizės mokyklą (žr. Uchvanovos-Šmygovos, Popovos, Markovič, Savič, Kurčiak darbus). Kauzalinė-genetinė teorija skirta tyrinėti sudėtingų kalbos ženklų daugiaplanį funkcinį turinį; pagal ją turinio branduoliui priklauso referentinė (informacija apie bendravimo dalyką) ir kortežinė (informacija apie komunikacijos dalyvius – bendravimo kortežą), ženklinė-referentinė ir... [toliau žr. visą tekstą] / Объект исследования: дискурс элитарных средств информации (от англ. elite media ― термин, зафиксированный в англоязычной специальной литературе (Jamieson 1992). В работе исследуются три «отдельных случая» (case studies), три разных по объему содержательных пространства таких языковых знаков как статья газетного издания, рубрика журнала и отдельный выпуск издания. А именно: одна из статей, опубликованных в воскресном приложении «Domenica» к газетному итальянскому изданию «Il Sole 24 Ore»); одна из рубрик англоязычного журнала «Harvard Business Review»); один из выпусков англоязычного журнала «The Lion»). "Harvard Business Review" — самое авторитетное англоязычное журнальное издание по менеджменту [www.harvardbusinessreview.com]. "Il Sole 24 Ore" — влиятельное политико-финансово-правовое газетное издание Италии [www.giornalilocali.it/quotidiani/il-sole-24-ore.htm]. Выбор журнала "The Lion" дополняет выборку исследования и является международным клубным журнальным изданием закрытого типа, распространяемое по подписке исключительно среди членов клуба (Lions Club International – самая крупная элитарная благотворительная организация в мире). Методологическая основа исследования: каузально-генетическая теория, репрезентирующая белорусскую школу дискурс-анализа (см. работы Ухвановой-Шмыговой, Поповой, Маркович, Савич, Курчак). Каузально-генетическая теория ориентирована на изучение функционального многопланового содержания сложных языковых знаков; включает в ядро содержания... [полный текст, см. далее]
277

Vietinio poveikio vaisto formų ir jontoforezės poveikio 5-aminolevulino rūgšties ir jos provaisto skvarbai į (pro) odą įvertinimas / Evaluation of the effect of topical formulations and iontophoresis on the penetration of 5-aminolevulinic acid and its prodrug into (through) skin

Armoškaitė, Vilma 30 September 2014 (has links)
Siekiant pagreitinti 5-aminolevulino rūgšties (5-ALA) skvarbą į (pro) odą ir sudaryti terapines fotodinaminiam gydymui tinkamas jos koncentracijas, įvertinta 5-ALA ir naujo provaisto skvarba į (pro) odą iš įvairių vietinio poveikio vaisto formų. Atlikta naujo provaisto 2-(dimetilamino)-etil-5-amino-4-oksopentanoato (DMAE-ALA) sintezė, ištirtos jo charakteristikos. Nustatytas susintetinto provaisto stabilumas įvairių pH verčių buferiniuose vandeniniuose tirpaluose ir odos esterazių poveikyje, įrodytas provaisto tinkamumas pernašai į (pro) odą. Atlikti 5-ALA ir du teigiamus krūvius vaisto formoje įgaunančio provaisto jontoforetinės ir pasyvios pernašos iš buferinių tirpalų ir celiuliozinės bei polivinilkarboksilinės kilmės polimerinių gelių į (pro) odą tyrimai in vitro. Patvirtintas reikšmingas skatinamas jontoforezės poveikis krūvinių molekulių pernašai į (pro) odą ir krūvio dydžio reikšmė elektros srovės skatinamos pernašos greičiui. Ištirta vaisto formų, pagamintų iš polivilinkarboksilinės kilmės ir celiuliozės polimerų, kokybė ir jų pasyvioji bei jontoforetinė pernaša. Įrodyta, kad provaisto įterpimui naudojant celiuliozės polimerų pagrindu pagamintus gelius, pasiekiama didžiausia 5-ALA pernaša. Nustatyta, kad du krūvius turintis 5-ALA provaistas į (pro) odą skverbėsi geriau negu vieną krūvį įgaunantys arba elektriškai neutralūs 5-ALA dariniai. Sudarytos rekomendacijos, skirtos pasiekti didžiausiai 5-ALA pernašai į (pro) odą. / Passive and iontophoretic delivery of 5-aminolevulinic acid and newly synthesized prodrug into (through) skin from various topical formulations was evaluated, while trying to accelerate the penetration of 5-ALA and its derivative into (through) skin and to generate the therapeutic concentration suitable for photodynamic therapy. A new prodrug 2-(dimethylamino)-ethyl-5-amino-4-oxopentanoate (DMAE-ALA) was synthesized, its characteristics have been evaluated. Stability of the prodrug in aqueous solutions of various pH values and at exposure with skin esterases (dermal and epidermal stability) has been evaluated. Suitability of the prodrug for topical delivery was confirmed. Studies for the evaluation of 5-ALA and DMAE-ALA passive and active delivery from cutaneous solutions, cellulose and polyvinyl carboxy polymer gels into (through) skin in vitro have been performed. Significant effect of iontophoresis on delivery of charged molecules into (through) skin as well as the significance of the charge of the molecule on the delivery rate has been confirmed. It has been shown that the insertion of the prodrug into cellulose-based polymer gels produces the highest amount of 5-ALA delivered into (through) skin. It was determined that the two-charged prodrug DMAE-ALA penetrated into (through) the skin more efficiently than single-charged or electrically neutral 5-ALA derivatives. Recommendations for achieving most efficient 5-ALA delivery into (through) the skin have been composed.
278

Inkarnatorische verkündigung : chancen und grenzen eines ganzheitlichen predigtverständnisses für die christliche Gemeinschaft der Stadt Biel/Bienne auf dem weg zu einem gemeinsamen Zeugnis / Incarnational preaching : chances and limitations of a holistic understanding of sermons for the Christian community in the city of Biel/Bienne leading to a common witness

Wasem, Philemon 11 1900 (has links)
Text in German / Die vorliegende Untersuchung beschäftigt sich mit inkarnatorischer Verkündigung, indem sie danach fragt, wie die christliche Botschaft heutzutage ganzheitlich präsentiert werden kann. Sie soll sowohl die Bevölkerung als auch Kirchen und Gemeinschaften eines urbanen Kontextes erreichen und dazu ermutigen, die Wirklichkeit der Guten Nachricht zu leben. Die Untersuchung definiert, wie ein inkarnatorisches Verständnis von Predigt als Ausdruck der kenotischen Partizipation, der kerygmatischen Leiterschaft und der sozialen Dimension aussieht und wie dieses in der mikro-, meso- und makrosozialen Ebene umgesetzt werden kann. Basierend auf dem Anspruch des Neuen Testaments, dass das Reich Gottes im Messias nahe herbeigekommen ist, dienen die Literaturstudie (deduktiv) und die qualitativen Experteninterviews (induktiv) der Erörterung des Untersuchungsgegenstandes. In einem mehrsprachigen Umfeld, in welchem die christliche Gemeinschaft fragmentiert und multikulturell existiert, kann der besprochene Ansatz zur Dialogfähigkeit, wechselseitigen Wertschätzung und vertieften Konzilianz beitragen. Ein inkarnatorisches Verständnis christlicher Verkündigung vermag Widerständen unterschiedlicher Art zu trotzen. Sowohl innerkirchlich als auch nach aussen gerichtet, kann ein gemeinsames Zeugnis der Gemeinschaften und Kirchen vor Ort wachsen. Die Sprach- und Handlungsfähigkeit einer auf Sammlung und Sendung ausgerichteten Ekklesiologie wird gefördert. / The presented research deals with incarnational preaching by asking how the Christian message can be presented nowadays so that both the population as well as churches and communities of an urban setting can be reached and encouraged to live and experience the Kingdom of God. The study defines what a incarnational understanding of preaching as an expression of kenotic participation, kerygmatic leadership and the social dimension looks like, and how this can be implemented in the micro-, meso- and macro social level. Based on the New Testament’s claim that in the Messiah the Kingdom of God is at hand, literature study (deductive) and expert interviews (inductive) will discuss the object of study. In a multilingual environment with a fragmented and multicultural Christian community, the discussed approach can contribute to dialog ability, mutual respect and reconciliation. An incarnational view of Christian preaching is able to defy various kinds of opposition. As a result a common witness of communities and local churches can grow – directed both within and outside the church. The ability to act and speak of a gathering- and missionoriented ecclesiology is promoted. / Christian Spirituality, Church History and Missiology / M. Th. (Missiology)
279

Efeito do tratamento combinado com tretinóina e ácido glicólico na abertura bucal de pacientes com seqüela de queimadura / Combined tretinoin and glycolic acid treatment for improvement of the mouth opening in burned patients

Alessandra Grassi Salles 20 January 2003 (has links)
O processo de reparação tecidual evolui tardiamente com alteração das propriedades físicas da pele, cuja gravidade varia, entre outros fatores, em função da profundidade original da lesão. Clinicamente a pele é seca, descamativa, discrômica e com diminuição da elasticidade, especialmente em cicatrizes hipertróficas. As características do tegumento pós-queimadura podem ser melhoradas com agentes de uso tópico normalmente utilizados em patologias como acne e fotoenvelhecimento. Foram avaliados 77 pacientes portadores de seqüela de queimadura peri-oral, entre seis e 46 anos de idade. O tipo de tegumento foi classificado como restaurado, quando epitelizado espontaneamente, ou enxertado. O tratamento tópico consistiu de tretinoína (0,01-0,05%) e ácido glicólico (5-7%) durante três meses. Duas distâncias foram medidas com paquímetro digital em abertura bucal máxima, a inter-dentária (D) e a inter-labial (L). Houve aumento significativo (p£0,01) de D e L nos grupos tratados quando comparados aos respectivos controles, tanto nos pacientes com tegumento restaurado como nos enxertados. O aumento de L foi significativamente maior que D. Sugerimos a utilização da medida inter-labial como parâmetro complementar à medida inter-incisal como método de avaliação indireta da elasticidade cutânea no tegumento pós-queimadura. / Tissue repair processes evolve with alterations of the cutaneous physical properties, which are proportional, among other factors, to the original depth of the lesion. At examination, the skin is dry, dyschromic and less elastic, specially in hypertrophic scars. Post-burn skin characteristics can be improved by topical agents regularly used in pathologies like acne or photodamage. We evaluated 77 patients who had peri-oral burn sequela. The ages ranged from six to 46 years old. The tegument was classified as restored, when spontaneously healed, or skin grafted. The topical treatment consisted of tretinoin (0,01-0,05%) and glycolic acid (5-7%) for three months. Inter-incisal (D) and inter-labial (L) distances were measured at maximal mouth opening with a digital pachymeter. Both inter-incisal and inter-labial distances increased significantly in the groups treated when compared to respective controls (p£0,01). This fact was similar in both types of tegument. Inter-labial distance (L) increased significantly more than D. We suggest its use as a complementary measure to inter-incisal distance for indirect evaluation of skin elasticity in the post-burn tegument.
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Análise mecânica e histológica do tegumento facial com seqüela de queimadura após tratamento tópico com tretinoína / Mechanical and histological analysis of the facial skin with burn sequelae after tretinoin topical treatment

Maria Fernanda Demattê Soares Belico 20 August 2008 (has links)
Pacientes vítimas de queimaduras convivem com seqüelas que podem diminuir sua auto-estima e qualidade de vida. Vítimas de queimaduras faciais são excluídos social e profissionalmente solicitando ao cirurgião plástico tratamentos complementares aos cirúrgicos para melhoria da aparência e qualidade da pele. Quinze pacientes do sexo feminino, vítimas de queimadura facial por álcool com mais de dois anos de evolução, foram submetidas a tratamento tópico com tretinoína 0,05% durante um ano, com exceção da região pré-auricular. Após este período, duas biópsias faciais, uma na região pré-auricular e outra um centímetro abaixo do lóbulo da orelha, foram realizadas para comparar áreas não tratadas e tratadas. Os fragmentos biopsiados foram submetidos à análise mecânica e histológica. Medidas de resistência e elastância foram significativamente menores nas áreas tratadas (resistência p=0,03 e elastância p<0,05). Não houve diferença estatística entre as densidades de fibras colágenas totais e de colágeno tipo III, fibras elásticas e versicam nas áreas tratadas e não tratadas / Patients that are victims of burns live with sequelae that may decrease their self-esteem and quality of life. Victims of facial burns are excluded from social and professional life. They request the plastic surgeon to provide complementary treatment to the surgical one, so as to improve their appearance and the quality of the skin. Fifteen female patients, victims of facial burns caused by alcohol with more than two years of evolution, underwent topical treatment with 0.05% tretinoin during one year. During this period, a small area at the pre-auricular region was spared from the treatment. After this period two facial biopsies, one in the pre-auricular area and the other one, 1 cm below the ear lobe, were performed to compare treated and non treated areas. Skin strips underwent a mechanical and histological analysis. Measurements of resistance and elasticity were significantly lower in the treated skin as compared with non-treated skin (resistance, p=0.03 and elasticity, p<0.05). The density of collagen and collagen type III fibers, elastic fibers and versican was not significantly different between treated and non-treated skins

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