ABSTRACT
Introduction: Invasive ductal carcinoma corresponds to the most common histological type of the breast, coexisting with different forms of clinical evolution, histological grading, expression of certain tissue markers and genomic profiles that seek a better understanding of the disease. Objectives: To analyze the correlation of ß-catenin and AXL markers with tumor aggressiveness, with reference to overall survival, tumor progression and histopathological prognostic factors. Methods: A study of 101 samples of invasive ductal mammary carcinoma was performed. Those with a diagnosis of ductal type, initially submitted to biopsy or definitive surgical treatment, were included. For control purposes, 20 samples of intraductal carcinoma, 35 of breast fibroadenoma and 10 of breast tissue without any alteration were included. Those undergoing neoadjuvant chemotherapy, those without a tumor sample prior to chemotherapy, those lost to follow-up, and those with incomplete data, were excluded. Results: When the ß-catenin expression was analyzed, it was negative. As for AXL, different degrees of expression were observed without statistical significance between them. Conclusion: When analyzing invasive ductal breast adenocarcinoma in TMA, there was no correlation in the expression of ß-Catenin and AXL when compared to overall survival, tumor progression and histological grade.
Introdução: O carcinoma ductal invasor corresponde ao tipo histológico mais comum da mama coexistindo com formas diferentes de evolução clínica, graduação histológica, expressão de determinados marcadores teciduais e perfis genômicos que procuram melhor entendimento da doença. Objetivos: Analisar a correlação dos marcadores ß-catenina e AXL com a agressividade tumoral, tendo como referência a sobrevida global, progressão tumoral e fatores prognósticos histopatológicos. Métodos: Foi realizado estudo de 101 amostras de carcinoma mamário ductal invasor. Foram incluídas aquelas com diagnóstico do tipo ductal, submetidas inicialmente à biópsia ou tratamento cirúrgico definitivo. Incluiu-se para fins de controle 20 amostras de carcinoma intraductal, 35 de fibroadenoma mamário e 10 de tecido mamário sem qualquer alteração. Foram excluídos os submetidos à quimioterapia neoadjuvante, que não tivessem amostra tumoral prévia ao tratamento quimioterápico, que perderam o seguimento, e com dados incompletos. Resultados: Quando analisada a expressão da ß-catenina, foi negativa. Quanto ao AXL foram observados diferentes graus de expressão sem significância estatística entre eles. Conclusão: Quando analisados adenocarcinoma mamário do tipo ductal invasor em TMA não houve correlação na expressão de ß-catenina e AXL quando comparados a sobrevida global, progressão tumoral e grau histológico.
ABSTRACT
BACKGROUND: Crusts in 7th follow-up day: G1 yes; G2 no; G3 no (left to right). Bespite all the advances in medicine and the wide variety of dressings available, the treatment of burn wounds still represents an important medical challenge. The pinus cellulose membrane dressing is a biomaterial with characteristics similar to those of bacterial cellulose, but with lower cost. AIM: To evaluate the efficacy of pinus nanocellulose membrane on healing of deep second degree burns in rats and compare with Membracel®. METHOD: Thirty male Wistar rats were submitted to deep second degree burn in dorse, with boiling water at 97o C for 20 s, generating a 314 mm² area wound. The animals were distributed in three dressing groups (n=10): group 1 - simple gauze; group 2 - bacterial cellulose membrane (Membracel®); and group 3 - pinus cellulose membrane. They were evaluated for 20 days to verify clinical condition, macro and microscopic appearance and wound contraction. RESULTS: All of them remained clinically well with no differences in weight. Crusts were observed in group 1, and none in groups 2 and 3. Regarding to scar contraction, groups 2 and 3 were similar, better than group 1. Microscopic analysis showed predominance of advanced healing degree in groups 1 and 3, and initial in group 2. Mature collagen was predominant in all groups. CONCLUSION: The pinus nanocellulose membrane is effective in the treatment of experimental second degree burn in rats and its effectiveness is similar to that of the bacterial nanocellular membrane.
Subject(s)
Bandages , Burns/therapy , Cellulose/pharmacology , Pinus/chemistry , Wound Healing , Animals , Collagen , Male , Rats , Rats, WistarABSTRACT
ABSTRACT Background: Despite all the advances in medicine and the wide variety of dressings available, the treatment of burn wounds still represents an important medical challenge. The pinus cellulose membrane dressing is a biomaterial with characteristics similar to those of bacterial cellulose, but with lower cost. Aim: To evaluate the efficacy of pinus nanocellulose membrane on healing of deep second degree burns in rats and compare with Membracel®. Method: Thirty male Wistar rats were submitted to deep second degree burn in dorse, with boiling water at 97o C for 20 s, generating a 314 mm² area wound. The animals were distributed in three dressing groups (n=10): group 1 - simple gauze; group 2 - bacterial cellulose membrane (Membracel®); and group 3 - pinus cellulose membrane. They were evaluated for 20 days to verify clinical condition, macro and microscopic appearance and wound contraction. Results: All of them remained clinically well with no differences in weight. Crusts were observed in group 1, and none in groups 2 and 3. Regarding to scar contraction, groups 2 and 3 were similar, better than group 1. Microscopic analysis showed predominance of advanced healing degree in groups 1 and 3, and initial in group 2. Mature collagen was predominant in all groups. Conclusion: The pinus nanocellulose membrane is effective in the treatment of experimental second degree burn in rats and its effectiveness is similar to that of the bacterial nanocellular membrane.
RESUMO Racional: Apesar de todos os avanços da medicina e da grande variedade de curativos disponíveis, o tratamento das queimaduras ainda representa importante desafio médico. O curativo de membrana de celulose de pinus é biomaterial com características semelhantes à de celulose bacteriana, mas de menor custo. Objetivo: Avaliar a eficácia da membrana de nanocelulose de pinus na cicatrização de queimaduras profundas de segundo grau em ratos e comparar com a Membracel®. Método: Trinta ratos Wistar machos foram submetidos à queimadura profunda de segundo grau em dorso, com água fervente a 97o C por 20 s, gerando lesão de 314 mm². Os animais foram distribuídos em três grupos de curativos (n = 10): grupo 1 - gaze simples; grupo 2 - membrana de celulose bacteriana (Membracel®); e grupo 3 - membrana de celulose de pinus. Eles foram avaliados por 20 dias para verificar o quadro clínico, aspecto macro e microscópico e a contração da ferida. Resultados: Todos permaneceram clinicamente bem, sem diferenças de peso. Crostas foram observadas no grupo 1 e nenhuma nos grupos 2 e 3. Em relação à contração da cicatriz, os grupos 2 e 3 foram semelhantes, melhores que o grupo 1. A análise microscópica mostrou predomínio de grau de cicatrização avançado nos grupos 1 e 3, e inicial no grupo 2. O colágeno maduro foi predominante em todos os grupos. Conclusão: A membrana de nanocelulose de pinus é eficaz no tratamento de queimaduras experimentais de segundo grau em ratos e sua eficácia é semelhante à da membrana nanocelular bacteriana.
Subject(s)
Animals , Male , Rats , Bandages , Wound Healing , Burns/therapy , Cellulose/pharmacology , Pinus/chemistry , Collagen , Rats, WistarABSTRACT
O sarcoma de partes moles constitui uma família de raros tumores malignos. São predominantemente de origem mesenquimatosa, podendo ocorrer em qualquer localização anatômica. São conhecidos mais de 70 subtipos histológicos com alta variedade biológica e susceptibilidade a terapias. O subtipo mais comum é o fibrossarcoma. Neste relato é descrito o caso de um paciente idoso com aparecimento de tumoração em dorso. Após ressecção da lesão, verificou-se fibrossarcoma de partes moles de alto grau
Soft tissue sarcoma is a family of rare malignant tumors. They present mesenchymal origin in most of cases, and can occur in any anatomical location.More than 70 histological subtypes with high biological variety and susceptibility to therapies are known.The most common subtype is the fibrosarcoma. In this case report is described a case of an elderly patient with a tumor on his back. After resection of the lesion, it was verified a high grade fibrosarcoma of soft tissue
ABSTRACT
OBJECTIVES:: The removal of pre-malignant colorectal lesions prevents cancer. Hyoscine has been proposed as a means of improving diagnosis by reducing colonic movements. The aim of this study was to analyze whether this anti-spasmodic enhances the detection of pre-malignant colorectal lesions. METHODS:: In a randomized, double-blinded fashion patients received hyoscine or a saline solution in all consecutive colonoscopies in which the cecum was reached. Lesions were analysed with respect to number, size, location, histology and capillary pattern. RESULTS:: A total of 440 colonoscopies were randomized. The overall polyp detection rate (PDR) and the adenoma detection rate (ADR) were 65.2% and 49.3%, respectively. In the hyoscine group, non-polypoid lesions were detected significantly more often (p=0.01). In the placebo group 281 lesions were diagnosed (202 adenomas) and in the hyoscine group 282 lesions were detected (189 adenomas) (p=0.23). The PDR and ADR were similar between the placebo and hyoscine groups (64% vs 66% and 50% vs 47%, respectively). No differences were observed between the two groups in the advanced-ADR or advanced neoplasia detection rate, as well the mean numbers of polyps, adenomas, advanced adenomas and advanced neoplasias detected per patient. The administration of hyoscine also did not improve the diagnostic accuracy of digital chromoendoscopy. The presence of adenomatous polyps in the right colon was detected significantly more frequently in the hyoscine group (OR 5.41 95% CI 2.7 - 11; p<0.01 vs OR 2.3 95% CI 1.1 - 4.6; p=0.02). CONCLUSION:: The use of hyoscine before beginning the withdrawal of the colonoscope does not seem to enhance the PDR and the ADR.
Subject(s)
Butylscopolammonium Bromide , Colonic Neoplasms/diagnosis , Colonic Polyps/diagnosis , Colonoscopy/methods , Double-Blind Method , Female , Humans , Male , Middle Aged , Precancerous Conditions/diagnosis , Predictive Value of Tests , Prospective Studies , Sensitivity and SpecificityABSTRACT
OBJECTIVES: The removal of pre-malignant colorectal lesions prevents cancer. Hyoscine has been proposed as a means of improving diagnosis by reducing colonic movements. The aim of this study was to analyze whether this anti-spasmodic enhances the detection of pre-malignant colorectal lesions. METHODS: In a randomized, double-blinded fashion patients received hyoscine or a saline solution in all consecutive colonoscopies in which the cecum was reached. Lesions were analysed with respect to number, size, location, histology and capillary pattern. RESULTS: A total of 440 colonoscopies were randomized. The overall polyp detection rate (PDR) and the adenoma detection rate (ADR) were 65.2% and 49.3%, respectively. In the hyoscine group, non-polypoid lesions were detected significantly more often (p=0.01). In the placebo group 281 lesions were diagnosed (202 adenomas) and in the hyoscine group 282 lesions were detected (189 adenomas) (p=0.23). The PDR and ADR were similar between the placebo and hyoscine groups (64% vs 66% and 50% vs 47%, respectively). No differences were observed between the two groups in the advanced-ADR or advanced neoplasia detection rate, as well the mean numbers of polyps, adenomas, advanced adenomas and advanced neoplasias detected per patient. The administration of hyoscine also did not improve the diagnostic accuracy of digital chromoendoscopy. The presence of adenomatous polyps in the right colon was detected significantly more frequently in the hyoscine group (OR 5.41 95% CI 2.7 - 11; p<0.01 vs OR 2.3 95% CI 1.1 - 4.6; p=0.02). CONCLUSION: The use of hyoscine before beginning the withdrawal of the colonoscope does not seem to enhance the PDR and the ADR.
Subject(s)
Humans , Male , Female , Middle Aged , Butylscopolammonium Bromide , Colonic Neoplasms/diagnosis , Colonic Polyps/diagnosis , Colonoscopy/methods , Double-Blind Method , Precancerous Conditions/diagnosis , Predictive Value of Tests , Prospective Studies , Sensitivity and SpecificityABSTRACT
A Dislipidemia causa diversas doenças cardiovasculares e metabólicas, e as estatinas são seu tratamento padrão. Alternativas para o tratamento têm sido estudadas para reduzir efeitos colaterais. O flavonoide quercetina mostrou um potencial efeito antioxidante e redutor de colesterol. Objetivou-se analisar a diferença entre o tratamento atual com sinvastatina e outro com quercetina. 25ratos Wistar foram divididos em 5 grupos: G1 com dieta padrão; G2 recebendo dieta hiperlipídica (DH); G3 DH e 10mg/Kg de sinvastatina; G4 DH e 2mg/Kg de quercetina após 10 dias da dieta; G5 DH e 2mg/Kg de quercetina desde o início. Todos foram mantidos por 90 dias até eutanásia, quando coletou-se tecidos e sangue para análise.Encontrou-se uma maior proporção de diabetes (GLI>6Mmol/dl) no G2 quando comparado ao G3 e G5. Além da glicemia, G2 teve maiores valores de triglicerídeos e do índice TG-HDL, porém não apresentaram diferença significativa entre os demais
Dyslipidemia causes diverse cardiovascular and metabolic diseases, and statins are its standard treatment. Alternatives treatments to reduce side effects are in study. The flavonoid quercetin showed a potential antioxidant and cholesterol lowering effect. The aim was to analyze the difference between the current treatment with simvastatin and other with quercetin. 25 Wistar rats were divided into 5 groups: G1 with standard diet; G2 receiving hyperlipidic diet (HD); G3 HDand 10mg / kg simvastatin; G4 HD and 2 mg / kg quercetin after 10 days of diet; G5 HD and 2mg / kg quercetin from the beginning. All groups were kept for 90 days until euthanasia, when tissue and blood were collected for analysis. A higher proportion of diabetes (GLI>6Mmol / dl) was found in G2 compared to G3 and G5. In addition, G2 had higher levels of triglycerides and TG-HDL, but lack a significant difference between the others
ABSTRACT
A tuberculose geniturinária é uma das manifestações mais comuns da tuberculose extra-pulmonar. Em muitos casos há a presença concomitante de tuberculose pulmonar ou outros órgãos do trato geniturinário, sendo raro o envolvimento epididimal e testicular.A orquite tuberculosa pode mimetizar tumor testicular em pacientes aparentemente saudáveis. A seguir, apresentamos um caso de um paciente encaminhado ao Hospital Santa Casa de Curitiba, com quadro de dor e aumento do volume testicular. Durante investigação, verificou-se a suspeita de neoplasia testicular, sendo optada pela remoção cirúrgica da massa testicular. O exame histopatológico diagnosticou uma orquiepididimite tuberculosa isolada.
Genitourinary tuberculosis is one of most common localization of extrapulmonary tuberculosis. In most cases, there is a simultaneous invasion on lungs or other genitourinary tract organs.The infection restricted to testicle and epididymis is quite rare. Testicle orchitis can mimic a testicular tumor in healthy patients. We will present the case of a patient attended in Santa Casa de Curitiba Hospital, presenting pain and an increase on testicle size. During the investigation, Doctors suspected of a testicular neoplasia, so they decided to remove the mass surgically. Pathological examination revealed an isolated tuberculous epididymo-orchitis.
