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1.
Braz. J. Pharm. Sci. (Online) ; 59: e21920, 2023. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1439531

RESUMO

Abstract We report here microemulsions (MEs) for topical delivery of protoporphyrin IX (PpIX) for Photodynamic Therapy (PDT) of skin cancers. Selected MEs consisting of Oil/Water (O/W) bicontinuous (BC) and Water/Oil (W/O) preparations were characterized as to pH, nanometric size, zeta potential, drug content, and viscosity. Sustained in vitro PpIX release was achieved from MEs 2A (O/W), 10B (BC) and 16B (W/O) through an artificial membrane for up to 24 h, characterizing MEs as drug delivery systems. None of these MEs showed permeation through the skin, demonstrating the required topical effect. After 4 h, in vitro retention of PpIX in the stratum corneum (SC) was higher from both ME 10B and control (PpIX at 60 µg/mL in PEG 300). However, in the Epidermis + Dermis ([Ep + D]), retention from ME 10B and ME 16B was ~40 times higher compared to control. Confocal Laser Scanning Microscopy (CLSM) showed higher fluorescence intensity in the SC for both control and ME 10B, whereas ME 10B fluorescence was higher in [Ep+D]. The results indicate that ME 10B is suitable for PpIX encapsulation, showing good characteristics and a localized effect for a potential delivery system for PDT-associated treatments of skin cancers.


Assuntos
Fotoquimioterapia/efeitos adversos , Protoporfirinas/agonistas , Pele/lesões , Neoplasias Cutâneas/patologia , Técnicas In Vitro/instrumentação , Preparações Farmacêuticas/administração & dosagem , Microscopia Confocal/métodos , Derme/anormalidades
2.
Braz. J. Pharm. Sci. (Online) ; 58: e181127, 2022. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1374565

RESUMO

Abstract Tongluo-Qutong rubber plaster (TQRP), a typical Chinese patent medicine that contains 13 different herbal remedies, is widely used in clinical practice for the treatment of cervical spondylosis and osteoarthritis. However, due to a lack of in vitro transdermal studies, the active ingredients of TQRP have not been fully elucidated. This presents a huge obstacle for quality evaluation, pharmacokinetic studies and clinical safety assessment of TQRP. In this work, a UPLC/UV/MS/MS method was established and validated to evaluate five analytes in TQRP. The validation demonstrated linearity (r > 0.99), specificity (no co-eluting peaks at the retention times of the analytes), and precision (RSD < 15%) within acceptable parameters. A skin permeation study was performed to determine the concentrations of drugs delivered to the dermis. The 24-hour cumulative permeation of ferulic acid, aleo-emodin, emodin and piperine were 303.68, 709.31, 671.06 and 25561.01 ng/cm2, respectively. According to the fitting data of the TQRP active components, skin permeation was mainly due to a combination of passive diffusion and drug release after matrix erosion


Assuntos
Animais , Masculino , Feminino , Camundongos , Borracha/classificação , Pele/metabolismo , Técnicas In Vitro/métodos , Derme/lesões , Sensibilidade e Especificidade , Difusão , Liberação Controlada de Fármacos , População do Leste Asiático
3.
Int. j. morphol ; 39(4): 1160-1163, ago. 2021. ilus
Artigo em Espanhol | LILACS | ID: biblio-1385458

RESUMO

RESUMEN: Los dentículos dérmicos son estructuras dermales presentes en el grupo de los condrictios, tienen un papel muy importante en su biología y se les ha utilizado como un carácter taxonómico que permiten reconocer grupos o especies. Por lo que en el presente trabajo se compara la morfología dermal de los juveniles de dos especies de tiburones pala, Sphyrna tiburo y S. vespertina, cuyo origen evolutivo está emparentado con el cierre del istmo centroaméricano. Para ello se obtuvieron muestras dermales (1 cm2) de tres regiones corporales y se procesaron para obtener imágenes de alta resolución por medio de Microscopia electrónica de barrido (MEB). Los dentículos de ambas especies tienen un patrón morfológico común, con variaciones en la longitud de las prolongaciones de las crestas, área libre y superposición de los dentículos, y grado de notoriedad de la ornamentación microestructural.


SUMMARY: The dermal denticles are dermal structures present in the group of chondrichthyans, they have a very important role in their biology and they have been used as a taxonomic character that allows to recognize groups or species. Therefore, in the present work, the dermal morphology of the juveniles of two species of shovel sharks, Sphyrna tiburo and S. vespertina, whose evolutionary origin is related to the closure of the Central American isthmus, is compared. For this, dermal samples (1 cm2) from three body regions were obtained and processed to obtain high resolution images by means of scanning electron microscopy (SEM). The denticles of both species have a common morphological pattern, with variations in the length of the ridge extensions, free area and overlapping of the denticles, and the degree of notoriety of the microstructural ornamentation.


Assuntos
Animais , Tubarões/anatomia & histologia , Derme/ultraestrutura , Microscopia Eletrônica de Varredura , Elasmobrânquios/anatomia & histologia , Escamas de Animais/ultraestrutura
4.
An. bras. dermatol ; 96(3): 328-331, May-June 2021. graf
Artigo em Inglês | LILACS | ID: biblio-1285053

RESUMO

Abstract Cutis rhomboidalis nuchae was assessed in a 65-year-old patient. Optical microscopy showed basophilic agglomerations in the reticular dermis with decreased elastic fibers. Trans- mission electron microscopy showed elongated, curved and fragmented structures, and in their interior the presence of electron-dense lumps was reduced and irregular, similar to modified elastic fibers, whereas the collagen fibers had a normal aspect. Scanning electron microscopy showed deposits between the bundles of collagen, resembling pebbles or stones. These findings demonstrate that, at one stage of the disease, the collagen remains normal and the alterations are seen in the elastic tissue.


Assuntos
Humanos , Idoso , Dermatopatias , Microscopia Eletrônica de Varredura , Derme , Microscopia Eletrônica de Transmissão , Tecido Elástico
5.
Dermatol. argent ; 27(1): 34-36, ene.-mar. 2021. il
Artigo em Espanhol | LILACS, BINACIS | ID: biblio-1361760

RESUMO

La morfea superficial es una variante rara de morfea que se distingue de la clásica tanto en la clínica como en la histopatología. Se caracteriza por máculas hipopigmentadas o hiperpigmentadas, con mínima o ninguna induración, sin síntomas asociados, contractura ni atrofia. En la histopatología, se observa un compromiso limitado a las fibras colágenas en la dermis reticular superficial. Se comunica el caso de una paciente con diagnóstico de morfea superficial tratada con fototerapia ultravioleta B y metotrexato.


Superficial morphea is a rare variant of morphea that is distinguished from the classic variant both clinically and histopathologically. It is characterized by hypo or hyperpigmented patches with minimal to no induration, without associated symptoms, without contracture or atrophy. At the histopathological level, a limited involvement of collagen fibers is observed at the level of the uperficial reticular dermis. The case of a patient with superficial morphea treated with ultraviolet B phototherapy and methotrexate is presented.


Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Fototerapia/métodos , Esclerodermia Localizada/terapia , Esclerodermia Localizada/diagnóstico , Esclerodermia Localizada/tratamento farmacológico , Metotrexato/administração & dosagem , Derme/patologia , Ácido Fólico/administração & dosagem
6.
J. venom. anim. toxins incl. trop. dis ; 27: e20200149, 2021. graf, ilus
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1154771

RESUMO

Skin lesions of patients affected by non-ulcerated cutaneous leishmaniasis (NUCL) caused by L. (L.) infantum chagasi are characterized by lymphohistiocytic inflammatory infiltrate associated with epithelioid granuloma and scarce parasitism. However, the in situ cellular immune response of these patients is unclear. Therefore, the aim of the present study was to characterize the cellular immune response in the skin lesions of patients affected by NUCL. Methods Twenty biopsies were processed by immunohistochemistry using primary antibodies to T lymphocytes (CD4, CD8), NK cells, B lymphocytes, macrophages, nitric oxide synthase and interferon-gamma. Results Immunohistochemistry revealed higher expression of all cellular types and molecules (IFN-γ, iNOS) in the dermis of diseased skin compared to the skin of healthy individuals (p < 0.05). Morphometric analysis performed in the skin lesions sections showed the predominance of CD8+ T lymphocytes in the mononuclear infiltrate, followed by macrophages, mostly iNOS+, a response that could be mediated by IFN-γ. Conclusion Our study improves knowledge of the cellular immune response in non-ulcerated or atypical cutaneous leishmaniasis caused by L. (L.) infantum chagasi in Central America and pointed to the pivotal participation of CD8+ T lymphocytes in the host defense mechanisms against the parasite in patients with NUCL.(AU)


Assuntos
Imuno-Histoquímica , Derme/lesões , Imunidade , Leishmania , Infecções
7.
Acta méd. colomb ; 45(4): 67-67, Oct.-Dec. 2020. graf
Artigo em Inglês | LILACS, COLNAL | ID: biblio-1278145

RESUMO

Un hombre de 72 años, es hospitalizado por falla cardiaca aguda. Tiene historia de hipertensión arterial en manejo con enalapril e hidroclorotiazida. Desde su ingreso, se inició trom-boprofilaxis con enoxaparina 40 mg diarios por vía subcutánea en abdomen. Tres días después aparecen lesiones cutáneas ampollosas, tensas, de contenido hemático y diámetro entre 5-15 mm. Las lesiones se localizan en miembro superior derecho (Figura 1) y pie izquierdo (Figura 2), tienen haloeritematoso y no son dolorosas. Las pruebas de coagulación, proteína C reactiva, VSG y hemograma son normales. Se realizó biopsia de piel que mostró lesión subepidérmica con material hemorrágico en dermis papilar y reticular con neutrófilos escasos, sin vasculitis o trombosis. Estos hallazgos, confirman el diagnóstico de dermatosis ampo-llosa hemorrágica a distancia asociada a enoxaparina. Este constituye un efecto adverso infrecuente y autorresolutivo de las heparinas, no relacionado con la dosificación y en sitios distantes a su aplicación. Este paciente se trató con el retiro del medicamento, resolviendo las lesiones a los sietedías y sin recurrencia de las mismas luego de tres meses de seguimiento


A 72-year-old man was hospitalized for acute heart failure. He had a history of arterial hypertension being treated with enalapril and hydrochlorothiazide. Thromboprophylaxis was begun at admission with 40 mg of subcutaneous enoxaparin daily, in the abdomen. Three days later, tense, blood-filled bullous skin lesions with a 5-15 mm diameter appeared. The lesions were on the right arm (Figure 1) and the left foot (Fig-ure 2); they had an erythematous halo and were not painful Clotting, C-reactive protein, ESR and complete blood count were normal. A skin biopsy was performed, which showed a subepidermal lesion with hemorrhagic material in the papillary and reticular dermis with scant neutrophils and no vasculitis or thrombosis. These findings confirm the diagnosis of bullous hemorrhagic dermatosis at distant sites related to enoxaparin. This is an uncommon and self-resolving adverse effect of heparins, unrelated to the dose and at sites distant from their application. This patient was treated by discontinu-ing the medication, and the lesions resolved seven days later with no recurrence after three months of follow-up.


Assuntos
Humanos , Masculino , Idoso , Dermatopatias , Vasculite , Pacientes , Pele , Trombose , Ferimentos e Lesões , Coagulação Sanguínea , Derme
8.
An. bras. dermatol ; 95(3): 386-389, May-June 2020. graf
Artigo em Inglês | LILACS, Coleciona SUS | ID: biblio-1130883

RESUMO

Abstract We report a 74-year-old male presented to an outpatient dermatology clinic in Manaus, Amazonas, with a one-year history of pruritic, keloidal lesions on his left lower extremity. Histopathology showed round structures in reticular dermis. Grocott methenamine silver stain revealed numerous round yeasts with thick double walls, occurring singly or in chains connected by tubular projections. The diagnosis was lobomycosis. Although the keloidal lesions presented by this patient are typical of lobomycosis, their linear distribution along the left lower limb is unusual.


Assuntos
Humanos , Masculino , Idoso , Lobomicose/diagnóstico , Lobomicose/patologia , Queloide/diagnóstico , Queloide/patologia , Dermatoses da Perna/diagnóstico , Dermatoses da Perna/patologia , Biópsia , Derme/microbiologia , Derme/patologia
9.
Electron. j. biotechnol ; 45: 19-29, May 15, 2020. tab, ilus, graf
Artigo em Inglês | LILACS | ID: biblio-1177401

RESUMO

BACKGROUND: Long non-coding RNAs (lncRNAs), as post-transcriptional regulators, were thought to function in the inductive property of dermal papilla cells (DPCs) in cashmere goat. Previously, lncRNA-599554 was identified in secondary hair follicle (SHF) of cashmere goat, but its functional significance is unknown. RESULTS: In the present investigation, we verified that lncRNA-599554 had significantly higher expression at the anagen dermal papilla of cashmere goat SHF than that at telogen. Based on overexpression and knockdown techniques, we found that lncRNA-599554 contributes the inductive property of DPCs of cashmere goat, which was assessed by detecting the changes in the expression of several typical indictor genes in DPCs including ET-1, SCF, Versican, ALP, Lef1 and Ptc-1. Based on RNA pull-down assay, we verified that lncRNA-599554 directly interacted with chi-miR-15a-5p. Also, we showed that lncRNA-599554 positively regulated the Wnt3a expression in DPCs but which did not appear to involve its modulating of promoter methylation. Based on the use of Dual-luciferase reporter assays, our data indicated that lncRNA-599554 regulated the Wnt3a expression through chi-miR-15a-5p-mediated post-transcriptional level. CONCLUSIONS: We showed that lncRNA-599554 contributes the inductive property of DPCs in cashmere goat which might be achieved through sponging chi-miR-15b-5p to promote the Wnt3a expression. The results from the present investigation provided a novel insight into the functional mechanism of lncRNA-599554 in the SHF regeneration of cashmere goat along with the formation and growth of cashmere fiber.


Assuntos
Animais , Folículo Piloso/citologia , Folículo Piloso/metabolismo , Derme/citologia , Proteína Wnt3A/metabolismo , RNA Longo não Codificante/metabolismo , Bioensaio/métodos , Cabras , RNA Longo não Codificante/genética , Luciferases , Metilação
10.
An. bras. dermatol ; 95(2): 247-249, Mar.-Apr. 2020. graf
Artigo em Inglês | LILACS, Coleciona SUS | ID: biblio-1130850

RESUMO

Abstract Pseudoxanthoma elasticum-like papillary dermal elastolysis is an acquired elastic tissue disorder clinically similar to pseudoxanthoma elasticum in the absence of systemic involvement. Histopathologically, special staining of elastic fibers demonstrates a total or partial band-like loss of elastic fibers in the papillary dermis. Although ultraviolet radiation seems to be one of the main etiological factors in this entity, we report a case of pseudoxanthoma elasticum-like papillary dermal elastolysis on the neck of a woman who wore hijab.


Assuntos
Humanos , Feminino , Idoso , Pseudoxantoma Elástico/patologia , Derme/patologia , Tecido Elástico/patologia , Biópsia , Dermoscopia
12.
An. bras. dermatol ; 95(1): 102-104, Jan.-Feb. 2020. graf
Artigo em Inglês | LILACS | ID: biblio-1088736

RESUMO

Abstract White fibrous papulosis of the neck is a rare entity, with fewer than 50 cases described. It is a benign pathology whose main interest lies in its broad differential diagnosis, especially with pseudoxanthoma elasticum. The authors report the case of a 77-year-old woman with multiple yellow-white monomorphic papules on the posterior cervical region, with years of evolution. Cutaneous biopsy revealed a nodular area in the superficial and middle reticular dermis, with slight thickening of the collagen fibers and focally enlarged elastic fibers, aspects highlighted in the Verhoeff staining that additionally showed absence of elastic fibers in the papillary dermis.


Assuntos
Humanos , Feminino , Idoso , Dermatopatias Papuloescamosas/patologia , Pescoço/patologia , Biópsia , Fibrose , Derme/patologia , Tecido Elástico/patologia
14.
An. bras. dermatol ; 94(6): 754-756, Nov.-Dec. 2019. graf
Artigo em Inglês | LILACS | ID: biblio-1054889

RESUMO

Abstract A 28-year-old white female patient presented with multiple erythematous-to-violaceous, painful, suppurative nodules on the buttocks and thighs that appeared after two weeks of mesotherapy with deoxycholate, caffeine, sunflower liposomes, and sinetrol for localized fat. She was treated for atypical mycobacteriosis, but with no satisfactory response after antibiotic therapy. Bacterial, mycobacterial, and fungal culture were all negative. Histopathologic examination of the biopsy showed noninfectious suppurative panniculitis. It resolved after treatment with methotrexate, prednisone, and hydroxychloroquine. This report highlights the rarity of this complication, the importance of its early recognition, and differentiation with atypical fast growing mycobacterioses.


Assuntos
Humanos , Feminino , Adulto , Paniculite Nodular não Supurativa/induzido quimicamente , Paniculite Nodular não Supurativa/patologia , Ácido Desoxicólico/efeitos adversos , Mesoterapia/efeitos adversos , Biópsia , Paniculite Nodular não Supurativa/tratamento farmacológico , Resultado do Tratamento , Derme/patologia
15.
An. bras. dermatol ; 94(4): 473-475, July-Aug. 2019. graf
Artigo em Inglês | LILACS | ID: biblio-1038301

RESUMO

Abstract: Atrophoderma of Pasini and Pierini is a skin disorder affecting dermal collagen and is clinically characterized by well-defined plaques of depressed skin. Histopathological changes are subtle, and in most cases, the diagnosis requires a comparative study with healthy skin from the same anatomical site. High frequency ultrasound is a useful imaging method for diagnosis of atrophic skin changes. A case is presented in which ultrasound can support the clinical and the histopathological diagnosis of atrophoderma of Pasini and Pierini.


Assuntos
Humanos , Feminino , Adulto , Dermatopatias/patologia , Dermatopatias/diagnóstico por imagem , Ultrassonografia Doppler em Cores/métodos , Derme/patologia , Derme/diagnóstico por imagem , Atrofia/patologia , Atrofia/diagnóstico por imagem , Biópsia , Diagnóstico Precoce
16.
Rev. cuba. med. mil ; 48(2): e284, abr.-jun. 2019. tab, fig
Artigo em Espanhol | LILACS, CUMED | ID: biblio-1126613

RESUMO

Introducción: Las especies vegetales constituyen el remedio primero a los problemas de salud que aquejan a las personas. La granada es rica en ácido ascórbico, mejora la barrera epidérmica y reduce la contracción de las heridas. La flor de agua posee actividad antibacteriana. Objetivo: Evaluar el efecto cicatrizante del polvo carbonizado de Punica granatum Linn (granada) y de Eichhornia crassipes (flor de agua), en un modelo experimental en ratas. Métodos: Estudio analítico experimental con el empleo 30 ratas macho distribuidas en 3 grupos (n= 10). Grupo I y II; tratadas con el polvo carbonizado de la granada y flor de agua respectivamente. Grupo III: Tratadas con cloruro de sodio al 0,9 por ciento. Se realizó un modelo de herida por escisión en el dorso. La evolución de la cicatrización fue seguida por la velocidad de contracción de la herida en milímetros. Se realizó histología sobre biopsias de tejido cicatrizado. Para el análisis estadístico se empleó la prueba no paramétrica de Mann- Whitney. El nivel de significación se fijó en p < 0,05. Resultados: Se comprobó el efecto cicatrizante de los polvos carbonizados de la granada y flor de agua; disminuyó el área de las heridas de manera significativa respecto al grupo control. El estudio histológico mostró dermis madura grado III en los grupos I y II. Conclusiones: La aplicación tópica del polvo carbonizado de granada y de flor de agua influyó sobre el cierre de las heridas y en la maduración de la dermis, por lo cual favoreció la cicatrización(AU)


ABSTRACT Introduction: Plant species are the first remedy to the people's health problems. The pomegranate is rich in ascorbic acid, improves the epidermal barrier and reduces the contraction of wounds. The water hyacinth has antibacterial activity. Objective: To evaluate the healing effect of the charred powder of Punica granatum Linn (pomegranate) and Eichhornia crassipes (water hyacinth), in an experimental model in rats. Methods: Experimental analytical study with 30 male rats distributed in 3 groups (n = 10). Group I and II; treated with the charred powder of the pomegranate and water hyacinth respectively. Group III: treated with 0.9 percent sodium chloride. An incision wound model was made on the back. The evolution of healing was followed by the speed of contraction of the wound in millimeters. Histology was performed on biopsies of scar tissue. For the statistical analysis, the nonparametric Mann-Whitney test was used. The level of significance was set at p < 0.05. Results: The healing effect of the charred powders of the pomegranate and water hyacinth was verified; decreased the wound area significantly compared to the control group. The histological study showed mature grade III dermis in groups I and II. Conclusions: The topical application of the charred powder of pomegranate and water hyacinth influenced the closure of the wounds and the maturation of the dermis, which favored healing(AU)


Assuntos
Animais , Ratos , Cloreto de Sódio/administração & dosagem , Cicatriz/veterinária , Derme , Flora Aquática/análise , Punica granatum
17.
Int. j. morphol ; 37(2): 541-547, June 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1002256

RESUMO

The structural characteristics of the skin, types and distribution of mucous cells of Yangtze sturgeon (Acipenser dabryanus) were studied at the light microscope level, stained with Haematoxylin-eosin (HE) and Alcian blue-periodie acid Schiff (ABPAS). The skin of both was composed of epidermis and dermis. The dermis was divided into stratum spongiosum and stratum compactum. The stained color of stratum compactum was stained more deeply than that of stratum spongiosum. The skin thickness displayed differences in the fish at different body positions. The thickest of epidermis layer was on the dorsal region for Yangtze sturgeon, reversely, the thinnest was the mandibular region; Stratum spongiosum on the mandibular region was the thickest, the stratum spongiosum of the maxillary region was not obvious. In summary, keratinized spines, a kind of keratin derivative, are widely distributed in the mandibular, ventral, dorsal, and caudal peduncle skin surface for Yangtze sturgeon, and some pit organs mainly present in the skin surface of the maxillary and ventral regions. In short, the small amount of mucous cells in the skin of Yangtze sturgeon and the type of mucous cell were main Type IV, nevertheless there was a distribution of a few Type III.


Se estudiaron las características estructurales de la piel, los tipos y la distribución de las células mucosas del esturión Yangtze (Acipenser dabryanus) con microscopio de luz, teñidas con hematoxilina-eosina (HE) y azul alcián-ácido de Schiff (AB-PAS). La piel estaba compuesta por epidermis y dermis. La dermis se dividía en estrato esponjoso y estrato compacto. El grosor de la piel mostró diferencias en los peces en diferentes posiciones del cuerpo. La capa más gruesa de la epidermis se observó en la región dorsal del esturión Yangtze; a la inversa, la más delgada en la región mandibular. El estrato esponjoso en la región mandibular era el más grueso, el estrato esponjoso de la región maxilar no era visualizado. En resumen, las espinas queratinizadas, un tipo derivado de la queratina, estaban ampliamente distribuidas en la superficie de la piel del pedúnculo mandibular, ventral, dorsal y caudal en el esturión Yangtze, y algunos órganos en fosas, presentes principalmente en la superficie de la piel de las regiones mandibular y ventral. En resumen, la pequeña cantidad de células mucosas en la piel del esturión Yangtze y el tipo de célula mucosa eran células principales tipo IV, sin embargo, se observaron algunas células tipo III.


Assuntos
Animais , Pele/ultraestrutura , Peixes/anatomia & histologia , Mucosa/ultraestrutura , Derme/ultraestrutura , Epiderme/ultraestrutura , Muco/citologia
18.
An. bras. dermatol ; 94(3): 358-360, May-June 2019. graf
Artigo em Inglês | LILACS | ID: biblio-1011120

RESUMO

Abstract: Dermatofibroma is a proliferation of spindle cells located in the dermis. We used scanning electron microscopy to examine two histologically confirmed lesions and observed preserved collagen bundles in the perilesional area. In the lesional area, the collagen was denser, without formation of bundles. Higher magnification showed collagen with mesh-like appearance similar to stretched tufts of cotton. Very high magnification evidenced the tufts of cotton and spindle cells measuring 2 to 12 microns.


Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Neoplasias Cutâneas/patologia , Histiocitoma Fibroso Benigno/patologia , Microscopia Eletrônica de Varredura , Derme/patologia
19.
Rev. bras. cir. plást ; 33(4): 478-483, out.-dez. 2018. ilus, tab
Artigo em Inglês, Português | LILACS | ID: biblio-979966

RESUMO

Introdução: O complexo areolopapilar (CAP) desempenha grande importância tanto na amamentação quanto na vida sexual das pacientes, consequentemente, devemos ressaltar que uma complicação potencial da mamoplastia redutora é a alteração ou até a perda da sensibilidade do CAP. Método: Estudo prospectivo, randomizado, controlado e duplo-cego para avaliar a relação entre a sensibilidade do complexo areolopapilar após mamoplastia redutora com liberação dérmica e o volume ressecado de tecido mamário. O estudo ocorreu no período de agosto de 2013 a agosto de 2015, no Hospital das Clínicas da Universidade Federal de Pernambuco (HC-UFPE). Resultados: O estudo totalizou 39 pacientes. A média de idade da amostra foi de 31,7 anos, índice de massa corporal (IMC) médio de kg/m2 e nenhuma das pacientes era tabagista. A taxa de comorbidade foi de 5,1% da amostra. O índice de complicações foi de 41%, composto de 7 casos de cicatriz inestética, 6 de hematoma e 4 de deiscência. Não houve caso de sofrimento ou necrose do CAP e todas as pacientes se mostraram satisfeitas com o resultado cirúrgico final. Não houve diferenças estatisticamente significantes em nenhuma das ocasiões entre os pacientes do grupo experimento e controle, tanto no grupo de ressecção de até 300 gramas quanto acima de 300gramas. Conclusões: A manobra de liberação dérmica não provocou diferença na sensibilidade do complexo areolopapilar, independentemente da quantidade de tecido mamário ressecado.


Introduction: The nipple­areola complex (NAC) plays an important role both in breastfeeding and sexual lives of the patients. Because of this, we must mention possible complications of reduction mammoplasty, such change or even loss of sensitivity of the NAC. Method: This was a prospective, randomized, controlled, double-blind study to evaluate the relationship between the sensitivity of the NAC after reduction mammoplasty with dermal release and the resected volume of breast tissue. This study was conducted between August 2013 and August 2015 at the Hospital das Clínicas of the Federal University of Pernambuco (HC-UFPE), in Recife City, Brazil. Results: The study involved 39 patients. The mean age and body mass index (BMI) of the patients were 31.7 years and 25.5 kg/m2, respectively. None of the patients was a smoker. The complication rate was 41%, including 7 cases of non-aesthetic scars, 6 cases of hematoma (bruises), and 4 cases of dehiscence. No patient had pain or NAC necrosis, and all the patients expressed being satisfied with the final surgical result. No statistically significant differences were found between the patients of the experimental and control groups, both in the group with resection of up to 300 g and those with resection >300 g. Conclusions: The maneuver of dermic release did not result in any differences in the sensitivity of the NAC, regardless of the quantity of resected breast tissue.


Assuntos
Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Mama/cirurgia , Mama/inervação , Mamoplastia/efeitos adversos , Mamoplastia/métodos , Procedimentos de Cirurgia Plástica/métodos , Derme/cirurgia , Avaliação de Processos e Resultados em Cuidados de Saúde , Complicações Pós-Operatórias , Derme , Complicações Intraoperatórias
20.
Int. j. morphol ; 36(4): 1290-1297, Dec. 2018. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-975698

RESUMO

El método más utilizado en identificación humana es el dactiloscópico, que registra, analiza y coteja los tipos fundamentales y puntos característicos de las figuras presentes en el dactilograma, determinando el grado de coincidencia, entre un patrón de identidad dubitada y uno de identidad indubitada. Debido a los procesos que afectan la piel de cadáveres, como la putrefacción entre otros, se utilizan las técnicas necropapiloscópicas que ocupan los patrones dérmicos para la identificación humana. El objetivo del presente trabajo es comparar registros epidérmicos con dérmicos, y validar científicamente, este método de identificación (epidérmico - dérmico). Para ello se utilizaron 32 dedos de cadáveres de individuos chilenos, de ambos sexos y de entre 40 y 80 años. Para obtener el registro físico artificial epidérmico y dérmico se utilizó la técnica de obtención de impresiones necrodactilares y se comparó a través de la técnica de cotejo dactiloscópico. Estos procedimientos fueron realizados por peritos criminalísticos de Carabineros de Chile. Se logró evidenciar diferencias importantes entre epidermis y dermis en cuanto a cantidad y calidad de puntos característicos y presencia de líneas seniles. En relación a tipos fundamentales, se evidenció que en dermis es difícil la observación de tipos fundamentales (borrosos) pero no se encontró ningún dígito que presentara tipo fundamental diferente entre epidermis y dermis. También se constataron diferencias por sexo y edad. Finalmente se pudo evidenciar, que existe una relación morfológica semejante entre registros físicos artificiales de patrones papiloscópicos epidérmicos con dérmicos provenientes del mismo individuo. Esto permite utilizar los registros dérmicos para la identificación humana positiva. Los resultados de este trabajo son importantes al aportar evidencia científica para la identificación humana en base al patrón dactiloscópico dérmico.


The most used method in human identification is the dactyloscopy, which registers, analyzes and collates the fundamental types and characteristic points of figures present in the dactylogram determining the degree of coincidence, between a pattern of identity that is dubious, and one that is indubious. Due to the processes that affect the skin of corpses, such as putrefaction, the necropapiloscopy techniques that occupy the dermal patterns for human identification are used. The objective of the present work is to compare epidermal with dermal records and validate scientifically, this method of identification (epidermal - dermal). For this purpose, 32 cadaveric fingers of Chilean individuals, of both sexes and between 40 and 80 years were used. In order to obtain the epidermal and dermal artificial physical record, the technique of obtaining necrodactyle impressions was used and compared through of the technique of dactyloscopic comparison. These procedures were carried out by criminalistic experts of Carabineros de Chile. It was possible to show important differences between epidermis and dermis in terms of quantity and quality of characteristic points and presence of senile lines. In relation to fundamental types, it was evidenced that in the dermis it is difficult to observe fundamental types (blurred) but no digit was found that presented a different of fundamental type between epidermis and dermis. There were also differences by sex and age. Finally, it was possible to demonstrate that there is a similar morphological relationship between artificial physical records of epidermal papiloscopic patterns with dermal patterns from the same individual. This allows the use of dermal records for positive human identification. The results of this work are important in providing scientific evidence for human identification based on the dermal fingerprint pattern.


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Antropologia Forense/métodos , Derme/anatomia & histologia , Dermatoglifia , Epiderme/anatomia & histologia , Cadáver
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