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1.
Rev. esp. patol ; 56(4): 227-232, Oct-Dic, 2023. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-226955

RESUMO

Background: SRY-related HMG-box 10 (SOX10) protein has a confirmed role in the regulation of neural cell proliferation and differentiation. It is now suggested that the changes in SOX10 expression may be linked to neural invasion by cancer cells. We aimed to assess the value of SOX10 expression in predicting perineural invasion in gastric cancer. Methods: A cross-sectional study was performed on 40 patients with gastric cancer. To assess perineural invasion, Hematoxylin & Eosin stained slides were examined. The expression of SOX10 was also examined by immunohistochemistry. Results: Our study showed higher perineural invasion in those with SOX10 positivity as compared to those without SOX10 expression (64.0% vs. 6.7%, p=0.001). No association was revealed between other baseline variables and SOX10 positivity. The expression of this marker increased the chance of neural invasion up to 17 times as indicated by the multivariable regression modeling. Multivariable regression modeling indicated that the chance of neural invasion increased up to 17 times in cases of SOX10 positivity. Conclusion: Overexpression of SOX10 is closely associated with the risk of perineural invasion in gastric cancer.(AU)


Antecedentes: La proteína HMG-box 10 (SOX10) relacionada con SRY tiene un papel confirmado en la regulación de la proliferación y diferenciación de células neurales. Ahora se propone que los cambios en la expresión de SOX10 pueden estar relacionados con la invasión neuronal de las células cancerosas. Nuestro objetivo fue evaluar el valor de la expresión de SOX10 en la predicción de la invasión perineural en el cáncer gástrico. Métodos: Este estudio transversal se realizó en 40 pacientes con cánceres gástricos. Para evaluar la invasión perineural, se planificó la evaluación histopatológica mediante tinción con hematoxilina y eosina. El estado de expresión de SOX10 también se examinó mediante la técnica de inmunohistoquímica. Resultados: Nuestro estudio mostró una mayor invasión perineural en aquellos con positividad de SOX10 en comparación con aquellos sin expresión de SOX10 (64,0% versus 6,7%; p=0,001). No se reveló ninguna asociación entre otras variables basales y la positividad de SOX10. La expresión de este marcador aumentó la posibilidad de invasión neural hasta 17 veces, como indica el modelo de regresión multivariable. Conclusión: La sobreexpresión de SOX10 está estrechamente asociada con el riesgo de invasión perineural en el cáncer gástrico.(AU)


Assuntos
Humanos , Masculino , Feminino , Neoplasias Gástricas/patologia , Fatores de Transcrição SOX , Corantes , Hematoxilina , Amarelo de Eosina-(YS) , Estudos Transversais , Biologia Celular
2.
Int. microbiol ; 26(4): 765-780, Nov. 2023. ilus
Artigo em Inglês | IBECS | ID: ibc-227468

RESUMO

The environmental pollution caused by chemical dyes is a growing concern nowadays. Limitations of traditional methods opened the route for nanotechnology; owing to the versatile properties of nanomaterials, gold nanoparticles (AuNPs) became a potential strategy for different applications. In the present study, biosynthesis of gold nanoparticles (BioAuNPs) was carried out by reacting chloroauric acid (HAuCl4) with cell-free filtrate of Penicillium rubens sp. nov. NCIM 1937. The AuNPs were then characterized by UV–visible spectroscopy, HR-TEM, FTIR, and DLS analysis to further examine their efficacious biosynthesis and morphological properties including size, shape, and stability. The biogenic AuNPs are polydisperse in nature, with a mean size of 14.92 ± 5 nm. These AuNPs exhibited promising antimicrobial activity against Escherichia coli NCIM-2065, Bacillus subtilis NCIM-2010, and Penicillium verrucosum MTCC 4935. In vitro quantitative HPLC results revealed that BioAuNPs significantly inhibited the biosynthesis of ochratoxin A (OTA). Microbial fuel cells (MFCs) are intriguing for power generation and wastewater treatment since they can directly transform chemical energy stored in organic matter to electricity by extracellular electron transfer (EET) via membrane proteins. AuNPs also showed excellent potential for dye degradation of organic pollutants, viz., methylene blue (MB), phenol red (PR), bromothymol blue (BTB), Congo red (CR), and 4-nitrophenol (4-NP). All dye removal efficiencies were estimated and fitted to pseudo-first-order processes using kinetic rate constants (Ka).The present study reveals a simple, original, and eco-friendly method for the synthesis of multifunctional biogenic AuNPs that could be effective in OTA detoxification in food products and organic pollutant removal during wastewater treatment for a sustainable environment.(AU)


Assuntos
Humanos , Penicillium , Nanopartículas , Ouro , Ocratoxinas , Substâncias Tóxicas , Poluição Ambiental , Microbiologia , Técnicas Microbiológicas , Corantes , Nanotecnologia , Nanoestruturas/microbiologia
3.
Actas dermo-sifiliogr. (Ed. impr.) ; 114(1): 19-24, jan. 2023. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-214468

RESUMO

Background Although partial onychectomy with chemical matricectomy has been described as the treatment of choice, there is sparse evidence in the literature regarding the use of silver nitrate for matricectomy. Our aim is to describe the effectiveness of silver nitrate for matrix cauterization after partial onychectomy. Methods A prospective observational study was performed on patients with ingrown toenails stage 2–3 who underwent partial onychectomy with silver nitrate chemical matricectomy during 2018–2019 in our institution. All patients were evaluated in the outpatient clinic on the 7th and 30th post-operative day and a telephone evaluation was performed every 6 months after the surgical procedure to date. Results One hundred and twenty-three patients, who underwent 231 partial onychectomies with silver nitrate chemical matricectomy were included, with a median follow-up of 21 months (interquartile range, 12–29). The procedure had an effectiveness of 95.3%, with only 11 recurrences (4.7%) reported so far on follow-up. Postoperative infections were observed in 4 patients (1.7%). Adverse effects, such as pain and postoperative drainage, were irrelevant in most patients. Conclusions Silver nitrate matricectomy after partial onychectomy is an effective and safe alternative for the treatment of ingrown toenail in children, with scarce postoperative morbidity and low recurrence rate (AU)


Antecedentes Aunque la onicectomía parcial con matricectomía química ha sido descrita como tratamiento de elección en los casos de uñas encarnadas en los dedos de los pies, existe escasa evidencia en la literatura en cuanto al uso de nitrato de plata para matricectomía. Nuestro objetivo es describir la efectividad del nitrato de plata para cauterización de la matriz tras onicectomía parcial. Métodos Se realizó un estudio observacional prospectivo en pacientes con uñas encarnadas en los dedos de los pies estadio 2-3, sometidos a onicectomía parcial con matricectomía con nitrato de plata durante los años 2018 y 2019 en nuestra institución. Se evaluó a todos los pacientes en la clínica ambulatoria el 7.° y 30.° días postoperatorios, realizándose una evaluación telefónica cada 6 meses, a contar desde la fecha de la intervención quirúrgica. Resultados Se incluyó a 123 pacientes, a quienes se realizaron 231 onicectomías parciales con matricectomía química con nitrato de plata, con un seguimiento medio de 21 meses (rango intercuartílico: 12-29). El procedimiento tuvo una efectividad del 95,3%, con solo 11 recidivas (4,7%) reportadas hasta el seguimiento. Se observaron infecciones postoperatorias en 4 pacientes (1,7%). Los efectos adversos, tales como dolor y el flujo postoperatorio, fueron irrelevantes en muchos pacientes. Conclusiones La matricectomía con nitrato de plata tras onicectomía parcial es una alternativa efectiva y segura para el tratamiento de las uñas encarnadas en niños, con escasa morbilidad postoperatoria y baja tasa de recidiva (AU)


Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Nitrato de Prata/uso terapêutico , Unhas Encravadas/terapia , Cauterização/métodos , Resultado do Tratamento , Estudos Prospectivos , Projetos Piloto , Recidiva , Corantes
4.
Actas dermo-sifiliogr. (Ed. impr.) ; 114(1): T19-T24, jan. 2023. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-214469

RESUMO

Antecedentes Aunque la onicectomía parcial con matricectomía química ha sido descrita como tratamiento de elección en los casos de uñas encarnadas en los dedos de los pies, existe escasa evidencia en la literatura en cuanto al uso de nitrato de plata para matricectomía. Nuestro objetivo es describir la efectividad del nitrato de plata para cauterización de la matriz tras onicectomía parcial. Métodos Se realizó un estudio observacional prospectivo en pacientes con uñas encarnadas en los dedos de los pies estadio 2-3, sometidos a onicectomía parcial con matricectomía con nitrato de plata durante los años 2018 y 2019 en nuestra institución. Se evaluó a todos los pacientes en la clínica ambulatoria el 7.° y 30.° días postoperatorios, realizándose una evaluación telefónica cada 6 meses, a contar desde la fecha de la intervención quirúrgica. Resultados Se incluyó a 123 pacientes, a quienes se realizaron 231 onicectomías parciales con matricectomía química con nitrato de plata, con un seguimiento medio de 21 meses (rango intercuartílico: 12-29). El procedimiento tuvo una efectividad del 95,3%, con solo 11 recidivas (4,7%) reportadas hasta el seguimiento. Se observaron infecciones postoperatorias en 4 pacientes (1,7%). Los efectos adversos, tales como dolor y el flujo postoperatorio, fueron irrelevantes en muchos pacientes. Conclusiones La matricectomía con nitrato de plata tras onicectomía parcial es una alternativa efectiva y segura para el tratamiento de las uñas encarnadas en niños, con escasa morbilidad postoperatoria y baja tasa de recidiva (AU)


Background Although partial onychectomy with chemical matricectomy has been described as the treatment of choice, there is sparse evidence in the literature regarding the use of silver nitrate for matricectomy. Our aim is to describe the effectiveness of silver nitrate for matrix cauterization after partial onychectomy. Methods A prospective observational study was performed on patients with ingrown toenails stage 2–3 who underwent partial onychectomy with silver nitrate chemical matricectomy during 2018–2019 in our institution. All patients were evaluated in the outpatient clinic on the 7th and 30th post-operative day and a telephone evaluation was performed every 6 months after the surgical procedure to date. Results One hundred and twenty-three patients, who underwent 231 partial onychectomies with silver nitrate chemical matricectomy were included, with a median follow-up of 21 months (interquartile range, 12–29). The procedure had an effectiveness of 95.3%, with only 11 recurrences (4.7%) reported so far on follow-up. Postoperative infections were observed in 4 patients (1.7%). Adverse effects, such as pain and postoperative drainage, were irrelevant in most patients. Conclusions Silver nitrate matricectomy after partial onychectomy is an effective and safe alternative for the treatment of ingrown toenail in children, with scarce postoperative morbidity and low recurrence rate (AU)


Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Nitrato de Prata/uso terapêutico , Unhas Encravadas/terapia , Cauterização/métodos , Resultado do Tratamento , Estudos Prospectivos , Projetos Piloto , Recidiva , Corantes
5.
Rev. esp. med. nucl. imagen mol. (Ed. impr.) ; 41(6): 373-379, nov. - dic. 2022. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-212063

RESUMO

En la última década se ha introducido la biopsia selectiva del ganglio centinela en cáncer de endometrio de bajo riesgo, siendo opcional en el de riesgo intermedio y alto. Sin embargo, hasta hace un año no se existía consenso respecto al grupo de población indicado, el trazador de elección o el lugar de administración del trazador. En este trabajo, presentamos de forma multidisciplinar los aspectos más controvertidos sobre la técnica de detección del ganglio centinela en cáncer de endometrio, con mayor énfasis en las ventajas y desventajas de los tipos de trazadores disponibles: radiotrazadores, trazadores híbridos y verde de indocianina (AU)


In the last decade, the procedure of sentinel lymph node biopsy has been introduced in low-risk endometrial cancer, being optional in intermediate- and high-risk cancer. However, until the last year, there was no consensus regarding the group of patients to whom to apply it, the best tracer to use or the site of injection. In this paper, we present in a multidisciplinary view the most controversial issues about the sentinel lymph node procedure in endometrial cancer, emphasizing the pros and cons of the different tracers available: radiotracers, hybrid tracers and indocyanine green (AU)


Assuntos
Humanos , Feminino , Neoplasias do Endométrio/diagnóstico por imagem , Neoplasias do Endométrio/patologia , Linfonodo Sentinela/diagnóstico por imagem , Linfonodo Sentinela/patologia , Biópsia de Linfonodo Sentinela/métodos , Verde de Indocianina , Estadiamento de Neoplasias , Excisão de Linfonodo , Corantes
6.
Allergol. immunopatol ; 50(6): 68-70, 01 nov. 2022. ilus
Artigo em Inglês | IBECS | ID: ibc-211526

RESUMO

Temporary henna tattoos have become increasingly popular, particularly among children and teenagers. The word “henna” is of Persian origin, and it is prepared from the plant Lawsonia inermis belonging to the family Lythraceae. Concerning allergic reactions, natural henna paste is rarely responsible for contact dermatitis, which is more frequent if paraphenylenediamine (PPD) is added to the paste. The authors present a case of female child with erythematous exanthems that appeared after the application of black henna tattoo. A diagnosis of contact dermatitis to black henna tattoo was hypothesised. Epicutaneous tests were performed at the Immunoalergology Department of the Coimbra University Hospital using standard European battery and natural henna paste. The tests revealed positive reaction to PPD (AU)


Assuntos
Humanos , Feminino , Pré-Escolar , Corantes/efeitos adversos , Dermatite Alérgica de Contato/diagnóstico , Dermatite Alérgica de Contato/etiologia , Fenilenodiaminas/efeitos adversos , Tatuagem/efeitos adversos
8.
Cir. Esp. (Ed. impr.) ; 100(9): 534-554, sept. 2022. tab
Artigo em Espanhol | IBECS | ID: ibc-208255

RESUMO

El verde de indocianina es una tinción fluorescente visible con luz cercana al infrarrojo. Es útil para la identificación de las estructuras anatómicas (tracto biliar, uréteres, paratiroides, conducto torácico), la vascularización de tejidos (en anastomosis en cirugía colorrectal, esofágica, gástrica, bariátrica, para plastias y colgajos en cirugía de pared abdominal, hepática, en hernias estranguladas en la isquemia intestinal), para la identificación de tumores (hígado, páncreas, suprarrenal, implantes en la carcinomatosis peritoneal, tumores retroperitoneales y linfomas) y para la identificación del ganglio centinela y del mapeo linfático de tumores malignos (cáncer de estómago, mama, colon, recto, esófago y piel). Las evidencias son muy alentadoras, aunque se necesita la estandarización de su uso y más estudios prospectivos y aleatorizados con mayor número de pacientes para obtener conclusiones definitivas sobre su uso. El objetivo de esta revisión de la literatura es proveer una guía para el uso de la fluorescencia con verde de indocianina en procedimientos de cirugía general (AU)


Indocyanine Green is a fluorescent substance visible in near-infrared light. It is useful for the identification of anatomical structures (biliary tract, ureters, parathyroid, thoracic duct), the tissues vascularization (anastomosis in colorectal, esophageal, gastric, bariatric surgery, for plasties and flaps in abdominal wall surgery, liver resection, in strangulated hernias and in intestinal ischemia), for tumor identification (liver, pancreas, adrenal glands, implants of peritoneal carcinomatosis, retroperitoneal tumors and lymphomas) and sentinel node identification and lymphatic mapping in malignant tumors (stomach, breast, colon, rectum, esophagus and skin cancer). The evidence is very encouraging, although standardization of its use and randomized studies with higher number of patients are required to obtain definitive conclusions on its use in general surgery. The aim of this literature review is to provide a guide for the use of ICG fluorescence in general surgery procedures (AU)


Assuntos
Humanos , Verde de Indocianina/administração & dosagem , Corantes/administração & dosagem , Procedimentos Cirúrgicos Operatórios/métodos
10.
Cir. Esp. (Ed. impr.) ; 100(5): 274-280, mayo 2022. ilus, graf, tab
Artigo em Espanhol | IBECS | ID: ibc-203516

RESUMO

IntroducciónLa angiografía de las glándulas paratiroides con verde de indocianina (ICG) es útil para predecir la hipocalcemia postiroidectomía. En este estudio se ha comparado la exactitud diagnóstica del sistema ICG-2, basado en la presencia de glándulas bien perfundidas (puntuación igual a 2), con el sistema ICG-4 basado en la suma del valor de la puntuación de las 4 glándulas.MétodosUn total de 50 pacientes (66% mujeres, mediana de edad: 49,4 años) fueron operadas practicándose una tiroidectomía total con identificación de las 4 glándulas paratiroides. El grado de la ICG se clasificó como 0: color negro (no vascularizada), 1: color gris/heterogéneo (parcialmente vascularizada) y 2: color blanco (bien vascularizada).ResultadosLa exactitud diagnóstica de ICG-4 para un punto de corte ≤3 fue del 85% (intervalo de confianza del 95%: 70,9-92,8), inferior al 92% (80,8-97,8) del ICG-2. Con ambas puntuaciones se detectaron 2 casos de falsos negativos, pero las tasas de falsos positivos fueron menores con el ICG-2 (18,2 vs. 57,1%).ConclusionesEl sistema ICG-2 predice la función paratiroidea en el postoperatorio inmediato mejor que el ICG-4 para valores de punto de corte ≤2 y ≤3 (AU)


IntroductionIndocyanine green (ICG) angiography of the parathyroids is useful in prediction of postthyroidectomy hypocalcemia. We compared the diagnostic accuracy of a single-gland ICG score of 2 with a score estimated by adding the viability value of the four glands (4-ICG).MethodsFifty patients (66% women, median age 49.4 years) underwent total thyroidectomy with identification of all 4 glands. The degree of ICG was classified as 0: black (nonvascularized), 1: gray/heterogeneous (partially vascularized), and 2: white (well vascularized).ResultsThe diagnostic accuracy of the optimal cut-off of the 4-ICG sum score ≤3 was 84% (95% CI: 70.9-92.8) lower than the diagnostic accuracy of 92% (80.8-97.8) of the ICG score 2. Both scores identified 2 false negative cases, but the rates of false positives were lower with the ICG score 2 (18.2 vs. 57.1%).ConclusionsIdentification of single-gland ICG score of 2 has a higher diagnostic accuracy than 4-ICG sum score to predict immediate hypocalcemia after total thyroidectomy (AU)


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Angiografia/métodos , Verde de Indocianina/administração & dosagem , Corantes/administração & dosagem , Doenças das Paratireoides/cirurgia , Hipocalcemia/etiologia , Tireoidectomia/efeitos adversos , Monitorização Intraoperatória , Estudos Prospectivos , Valor Preditivo dos Testes , Sensibilidade e Especificidade
12.
Int. microbiol ; 25(1): 153-164, Ene. 2022. graf
Artigo em Inglês | IBECS | ID: ibc-216019

RESUMO

The genus Fusarium can be utilized to produce a great variety of secondary metabolites under specific culture conditions, including pigments of increasing biotechnological interest, such as bikaverin. Such pigments are important due to the biological properties they possess, including antitumor and antibiotic activities, among others. In Fusarium fujikuroi, bik1–bik6 have been identified as the genes that are responsible for the synthesis of bikaverin. Therefore, in this study, we screened for the presence of bik genes and examined changes in mRNA levels of the bik genes under the influence of NH4NO3 (0.024, 0.048, 0.50, 1.0, and 4.60 g L−1) and NH4Cl (0.50 and 1.0 g L−1) as nitrogen sources for the phytopathogen Fusarium oxysporum f. sp. lycopersici. Our results indicated the presence of at least six bik (bik1–bik6) genes and showed increased mRNA levels for bik4, bik5, and bik6 in conditions where NH4NO3 was used at pH 3.0. The characteristic coloration of bikaverin was obtained in 10 out of 16 culture conditions, except when the fungus was grown with higher concentrations of NH4NO3 (1.0 and 4.60 g L−1). The pigment was chloroform-extracted from the culture conditions of NH4NO3 (0.024, 0.048, and 0.50 g L−1) and NH4Cl (0.50 and 1.0 g L−1) with 3 and 9 days of incubation. Analysis via visible spectroscopy and matrix-assisted laser desorption ionization-time of flight mass spectrometry were used for the identification of bikaverin.(AU)


Assuntos
Humanos , Corantes , Naftoquinonas , Fusarium , Microbiologia
14.
Gac. sanit. (Barc., Ed. impr.) ; 35(supl. 2): S554-S557, 2021.
Artigo em Inglês | IBECS | ID: ibc-221149

RESUMO

Objective: The purpose of this study was to find an explanation for the transformation process of the Palue female weavers’ leadership, which changes along with changes in the use of color materials in the sarong from chemical colors that are harmful to health and not in accordance with tradition to natural color materials that are safer and in accordance with tradition. Methods: An ethnographic approach was used in this study. Data collection was carried out for 17 months through direct involvement in the activities of producing natural-dyed and hand-woven traditional fabrics done by 15 families. Result: The results showed that a transformation of leadership took place in each of these families. Conclusion: Replacing chemicals with natural ingredients that are safer in sarong coloring, not only makes women healthier but also makes them a leader in the home industry as well as becoming more empowered and daring to pass on their sarong-making skills to the next generation because natural color materials are safe for children. Women are the managers of the home industry of making naturally dyed hand-woven fabrics, involving their husbands and children. There has been a cultural change in which husbands have been willing to help their wives with the dyeing and weaving works. Leadership by women in this home industry has an impact on the decision-making process in the family, cooperatives and community. (AU)


Assuntos
Humanos , Feminino , Liderança , Têxteis , 50227 , Corantes , Antropologia Cultural
18.
Arch. Soc. Esp. Oftalmol ; 95(5): 244-247, mayo 2020. ilus
Artigo em Espanhol | IBECS | ID: ibc-198616

RESUMO

Mujer de 35 años con disminución progresiva de visión en ambos ojos sin otros síntomas asociados manifestó como único antecedente la muerte de su hermano por amiloidosis. La agudeza visual fue de cuenta dedos a 30 centímetros en el ojo derecho y 20/70 en el ojo izquierdo. En la oftalmoscopia del ojo derecho se observó un vítreo blanco, homogéneo que no permitió valorar detalles y en el ojo izquierdo un vítreo blanquecino con opacidades en forma de bandas en la región cortical. Se realizó vitrectomía en el ojo derecho y estudio con inmunotinciones que fueron positivos para material amiloide. Publicamos un caso de amiloidosis diagnosticada con tinciones específicas en muestra vítrea cuya manifestación inicial y única fue la presencia de opacidades vítreas. El procesamiento de estas muestras debe considerarse en pacientes con antecedentes familiares, opacidades vítreas tempranas, resultados negativos de biopsia sistémica o curso atípico de la enfermedad


A 35-year-old woman with progressive decrease of vision in both eyes and with no other associated symptoms, manifested as the only antecedent, the death of her brother due to amyloidosis. The visual acuity was counting fingers at 30 centimetres in the right eye and 20/70 in the left eye. In ophthalmoscopy of the right eye, a white, homogeneous vitreous, that was difficult to assess in detail, was observed, and in the left eye a whitish vitreous with band-like opacities in the cortical region. Vitrectomy was performed in the right eye, and a study with specific stains showed positive for amyloid material. A case is reported of amyloidosis diagnosed with specific stains in a vitreous sample for which the initial and only manifestation was the presence of vitreous opacities. The processing of these samples should be considered in patients with family history, early vitreous opacities, negative results of systemic biopsy, or atypical course of the disease


Assuntos
Humanos , Feminino , Adulto , Amiloidose/diagnóstico , Amiloidose/complicações , Corpo Vítreo , Oftalmopatias/etiologia , Acuidade Visual , Vitrectomia , Amiloidose/cirurgia , Oftalmoscopia , Corpo Vítreo/cirurgia , Coloração e Rotulagem , Corantes , Oftalmopatias/diagnóstico , Biópsia
19.
Actas dermo-sifiliogr. (Ed. impr.) ; 111(1): 47-52, ene.-feb. 2020. graf, tab
Artigo em Espanhol | IBECS | ID: ibc-191484

RESUMO

OBJETIVOS: El objetivo del trabajo es mostrar la tendencia de la sensibilización de contacto entre los años 2004 y 2014 tras la regulación de su concentración en cosméticos en el año 2009 e investigar los factores de riesgo de la alergia de contacto a la parafenilendiamina. MATERIAL Y MÉTODOS: El diseño del estudio fue observacional retrospectivo e incluyó a pacientes con sospecha de alergia de contacto parcheados con la serie estándar del Grupo Español de Investigación en Dermatitis de Contacto y Alergia Cutánea durante los años 2004 a 2014, en 8 hospitales terciarios españoles. En las pruebas epicutáneas estaba incluida la parafenilendiamina al 1% en vaselina o 0,073 mg/cm2 en el TRUE-test(R). El estudio estadístico se realizó siguiendo las recomendaciones internacionales del análisis de los datos en alergia de contacto. RESULTADOS: Un total de 386 (4,1%) pacientes de los 9.341 incluidos fueron positivos a la parafenilendiamina, cuya tendencia empezó a decrecer en los primeros años (2004-2007) y a partir de ahí se mantuvo en torno al 4%. Los factores de riesgo para el desarrollo de una alergia de contacto a la parafenilendiamina fueron el sexo, la edad por encima de los 40 años, la polisensibilización y la profesión, entre las que destacan los trabajadores de la peluquería, los trabajadores de la goma y el plástico CONCLUSIONES: La alergia de contacto a la parafenilendiamina sigue siendo elevada en pacientes con eccema de contacto. Los factores de riesgo que predisponen a la alergia de contacto a la PPD coinciden con los que han sido publicados previamente


OBJECTIVES: To analyze trends in the prevalence of contact sensitization to p-phenylenediamine between 2004 and 2014, taking into consideration that the concentration of this product in cosmetics was regulated in 2009. To explore risk factors for contact allergy to p-phenylenediamine. MATERIAL AND METHODS: Retrospective observational study of patients suspected of having contact dermatitis from allergy to p-phenylenediamine during the years between 2004 and 2015 in 8 tertiary level hospitals. The patients underwent patch testing (TRUE-test) with the standard series of the Spanish Research Group on Contact Dermatitis and Skin Allergies. This series included p-phenylenediamine 1%. We followed international recommendations for the statistical analysis of data related to contact allergies. RESULTS: Three hundred eighty-six out of 9341 patients (4.1%) had positive reactions to p-phenylenediamine. The prevalence tended to decrease in the early years (2004-2007) and then leveled off at around 4%. Risk factors for developing contact dermatitis from p-phenylenediamine were sex, age over 40 years, multiple sensitivities, and profession, notably workers in hair salons and those who handle rubber and plastics. CONCLUSIONS: The prevalence of p-phenylenediamine allergy remains high among patients with contact eczema. Risk factors for p-phenylenediamine contact allergy are consistent with previous reports


Assuntos
Humanos , Masculino , Feminino , Adulto , Cosméticos/efeitos adversos , Doenças Profissionais/epidemiologia , Dermatite Alérgica de Contato/etiologia , Fenilenodiaminas , Corantes/efeitos adversos , Espanha/epidemiologia , Fatores de Risco , Estudos Retrospectivos , Testes Cutâneos/instrumentação , Modelos Logísticos
20.
Arch. esp. urol. (Ed. impr.) ; 72(8): 759-764, oct. 2019. ilus, graf
Artigo em Espanhol | IBECS | ID: ibc-189083

RESUMO

La experiencia con la cirugía reconstructiva asistida por robot ha sido reportada previamente. Dichos estudios han demostrado que el uso del robot en este tipo de procedimientos es seguro y eficaz. Sin embargo, las características de este tipo de casos hacen que la cirugía reconstructiva sea altamente compleja y por ende realizada solo en algunos centros de referencia. La ausencia de tacto durante la cirugía robótica hace que el cirujano dependa de ciertas claves visuales para su orientación. La indocianina verde (ICV) es un tinte que puede ser visualizado usando fluorescencia cercana a la luz infrarroja (FCLI). Dicha fluorescencia puede ser utilizada tanto para la orientación del cirujano como para la evaluación de la viabilidad de tejidos. Objetivo: En este artículo describimos el uso reportado en la literatura y nuestra experiencia utilizando ICV en cirugía reconstructiva, principalmente ureteral. Métodos: Describimos nuestro abordaje en la evaluación y tratamiento de pacientes con estrechez ureteral usando ICV. A la vez, hacemos una revisión de los estudios previos realizados sobre este tema. Conclusión: El uso de ICV ha demostrado ser seguro, fácil de realizar y repetir. La literatura y nuestra experiencia demuestra su utilidad en casos reconstructivos complejos. Estudios prospectivos a largo plazo y mayor escala permitirán evaluar mejor estos resultados


The experience with robotic reconstructive surgery has been reported previously. Many studies have demonstrated that the use of robotic surgery for those procedures is safe and effective. However, the characteristics related to those cases, make reconstructive surgery a very complex procedure that is usually managed in some referral centers only. Indocyanin green (ICG) is a substance that could be visualized using near-infrared fluorescence (NIRF). This fluorescence could help the surgeon for orientation and evaluation of viability of the tissues.Objective: This article describes the literature and our experience using ICG for reconstructive surgery of the ureter. Methods: We describe the literature and our approach for the evaluation and treatment of the ureteral stricture using ICG. Conclusion: The use of ICG has demonstrate to be safe, easy to perform and reproducible. In this article, we showed the ICG usefulness for complex reconstructive cases. Prospective studies with long follow up and bigger simple will permit a better evaluation of its results


Assuntos
Humanos , Corantes/administração & dosagem , Verde de Indocianina/administração & dosagem , Procedimentos de Cirurgia Plástica , Procedimentos Cirúrgicos Robóticos/métodos , Estudos Prospectivos
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