RESUMO Objetivo: avaliar a percepção do nível de qualidade de vida em sujeitosportadores de zumbido com e sem perda auditiva. Métodos: estudo transversalquantitativo. 189 sujeitos com idade média de 51,06 anos distribuídos emquatro grupos. Grupo 1: sujeitos com limiares auditivos normais sem queixa dezumbido; Grupo 2: sujeitos com limiares auditivos normais com queixa dezumbido; Grupo 3: sujeitos com perda auditiva neurossensorial sem queixa dezumbido; Grupo 4: sujeitos com perda auditiva neurossensorial com queixa dezumbido. Investigou-se níveis de qualidade de vida por meio do World HealthOrganizationQualityOf Life-WHOQOL-breve e aspectos psicoemocionais efuncionais dos portadores de zumbido por meio do Tinnitus HandicapInventory-THI. Foram realizadas análises estatísticas, comparações entregrupos e análise descritiva, considerando nível de significância de 5%. Resultados: os escores médios gerais da qualidade de vida mostraram-semenores no G4 (56,07) em relação ao G1 (64,67) (p<0,05). Os sujeitos comqueixa de zumbido apresentaram incômodo ao sintoma de grau moderado. Conclusão: o zumbido interfere na qualidade de vida dos indivíduos quepossuem limiares auditivos preservados ou alterados. É importantedesenvolver meios para reduzir o incômodo causado pelo sintoma, elevando onível de qualidade de vida dos sujeitos.

ABSTRACT Purpose: to evaluate the perception of the level of quality of life in subjects with tinnitus, with and without hearing loss. Methods: a cross-sectional quantitative study. A total of 189 subjects (mean age 53.06 years) divided into four groups. Group 1: subjects with normal auditory thresholds without tinnitus complaint; Group 2: subjects with normal auditory thresholds and tinnitus complaint; Group 3: subjects with sensorineural hearing loss without tinnitus complaint; Group 4: subjects with sensorineural hearing loss and with tinnitus complaint. Levels of quality of life were investigated through the World Health Organization Quality Of Life (WHOQOL) website - brief and psycho-emotional and functional aspects of patients with tinnitus through the Tinnitus Handicap Inventory (THI). Statistical analyzes, comparisons among groups and descriptive analysis were performed, considering a significance level of 5%. Results: the overall mean scores of quality of life in group 4 (56.07) were smaller than those of group 1 (64.67) (p<0.05). The subjects with tinnitus complaint presented a moderate level of disturbance of the symptom. Conclusion: tinnitus interferes in the quality of life of individuals who had preserved or altered auditory thresholds. Therefore, means to reduce the discomfort caused by tinnitus symptom should be developed, in order to improve patients' quality of life.

Abstract Purpose: To investigate the cellular response to injury, analyzing histopathologic changes associated with increased cellularity, degeneration and disorganization of collagen fibers. Methods: Thirty wistar rats were divided in two groups after partial Achilles tenotomy: the right hind paw were treated with the essential oil of Alpinia zerumbet (EOAz), diluted to 33% (0.3 mL kg-1), and the left hind paw received sunflower oil for 3, 14, 30 and 90 days. Statistical significance was determined using a Chi-square and Pearson Correlation qualitative variables test. Moreover, Mann-Whitney U-test test for comparison between different groups of the same cell, one-way ANOVA, and Tukey’s test of quantitative measurement. Results: A decrease hyperemia (p < 0.001) was observed in the acute phase of inflammatory cell number (p < 0.001), whereas sub-acute phase was marked by significant correlation with macrophages in fibroblasts (r = 0.17, p = 0.03), with probable induction a dense and modeled tissue. At chronic phase, it was found an increase in the number of fibroblasts and a higher percentage of type I collagen fibers (78%) compared with control collagen fibers (55%). Conclusion: Oil of Alpinia zerumbet stimulated the process of maturation, organization and tissue repair which gave it greater resistance.

RESUMO Objetivo: avaliar a influência da expressão imuno-histoquímica das proteínas Ki-67 e p16INK4a sobre parâmetros clínico-morfológicos em carcinomas espinocelulares periorais quimicamente induzidos com 9,10-dimetil-1,2-benzantraceno (DMBA) em modelo murino. Métodos: as lesões foram induzidas topicamente na comissura labial de dez camundongos Swiss durante 20 semanas, sendo determinado o momento de surgimento dos tumores e volume tumoral médio até 26 semanas. Na análise histopatológica, as variáveis estudadas foram gradação histológica de malignidade tumoral e expressão imuno-histoquímica das proteínas Ki-67 e p16INK4a. A correlação entre as variáveis estudadas foi determinada pela aplicação do teste de correlação de Spearman. Resultados: o tempo médio de surgimento das lesões periorais foi 21,1±2,13 semanas. Volume tumoral médio foi de 555,91±205,52mm3. Dos tumores produzidos, 80% foram classificados como de baixo escore e 20%, alto escore. Evidenciou-se positividade difusa para Ki-67 em 100% das lesões - índice de marcação (PI) de 50,1±18,0. Verificou-se correlação direta forte entre a imunoexpressão do Ki-67 e o volume tumoral (R=0,702) e fraca correlação com o escore de malignidade (R=0,486). A expressão da proteína p16INK4a foi heterogênea, mostrando fraca correlação com o volume tumoral (R=0,334). Não houve correlação entre a expressão imuno-histoquímica das duas proteínas estudadas. Conclusão: Em modelo experimental de carcinogênese perioral DMBA-induzida, a progressão tumoral está associada à fração proliferativa do tumor (células ki-67 positivas) e com a gradação histológica tumoral, porém não com a expressão da p16INK4a.

ABSTRACT Objective: to evaluate the influence of Ki-67 and P16INK4a proteins immunohistochemical expressions on the clinical and morphological parameters of perioral squamous cell carcinoma induced with 9,10-dimethyl-1,2-benzanthracene (DMBA) in mice. Methods: we topically induced the lesions in the oral commissure of ten Swiss mice for 20 weeks, determining the time to tumors onset and the average tumor volume up to 26 weeks. In histopathological analysis, the variables studied were histological malignancy grade and the immunohistochemical expression of Ki-67 and P16INK4a proteins. The correlation between variables was determined by application of the Spearman correlation test. Results: the mean time to onset of perioral lesions was 21.1 ± 2.13 weeks; mean tumor volume was 555.91 ± 205.52 mm3. Of the induced tumors, 80% were classified as low score and 20% high score. There was diffuse positivity for Ki-67 in 100% of lesions - Proliferation Index (PI) of 50.1 ± 18.0. There was a strong direct correlation between Ki-67 immunoreactivity and tumor volume (R = 0.702) and a low correlation with the malignancy score (R = 0.486). The P16INK4a protein expression was heterogeneous, showing a weak correlation with tumor volume (R = 0.334). There was no correlation between the immunohistochemical expression of the two proteins studied. Conclusion: in an experimental model of DMBA-induced perioral carcinogenesis, tumor progression was associated with the tumor proliferative fraction (Ki-67 positive cells) and with tumor histological grading, but not with P16INK4a expression.

Introdução:A própolis é uma substância resinosa e complexa; produzida pelas abelhas, destaca-se por suas propriedades terapêuticas, como atividade antimicrobiana, anti-inflamatória e cicatrizante. Poucos trabalhos existem sobre a variedade de própolis vermelha, encontrada no Estado de Sergipe.Objetivo:Avaliar a ação antimicrobiana do extrato de própolis vermelha, coletada na região nordeste do Estado de Sergipe, contra cepas de Enterococcus faecalis.Material e método:As amostras de própolis vermelha foram coletadas em Brejo Grande-SE, Brasil, e identificadas segundo suas características sensoriais, a granulometria e requisitos físico-químicos. O teor de flavonoides no extrato seco foi determinado. Soluções de própolis vermelha (EEP) foram preparadas nas concentrações de 1%; 2,5%; 5% e 7,5%. A cepa bacteriana de referência utilizada foi Enterococcus faecalis – ATCC 29212. A atividade antibacteriana foi verificada por meio de testes in vitro (teste de difusão em disco e determinação da concentração bactericida mínima – CBM) e ex vivo(utilizando dentes humanos extraídos). No teste ex vivo, os dentes contaminados foram divididos em três grupos com dez dentes cada. O grupo 1 foi tratado com própolis a 7,5% (concentração determinada no teste CBM); o grupo 2 foi tratado como controle positivo, com solução de hipoclorito de sódio a 2,5%, e o grupo 3 foi utilizado como controle negativo, sendo tratado apenas com solução salina NaCl 0,9%.Resultado:O extrato de própolis promoveu halo de inibição comparado ao da solução de hipoclorito de sódio a 2,5%, variando entre 12 e 16 mm. Não houve crescimento bacteriano após irrigação do conduto radicular com a solução de EEP a 7,5%.Conclusão:A própolis coletada apresentou médio teor de flavonoides (1,8%) e características físico-químicas coerentes com as exigidas pelo Ministério da Agricultura. Na concentração de 7,5% de própolis vermelha, foi observado um maior potencial antibacteriano quando comparado aos demais grupos.

Introduction:Propolis is a complex resinous substance produced by bees that has therapeutic properties, such as antimicrobial activity, anti-inflammatory, healing. Few studies exist on the red variety of propolis, found in the state of Sergipe.Objective:Evaluation of the antimicrobial action of the extract of propolis red collected in the northeastern state of Sergipe, against strains of Enterococcus faecalis.Material and method:The red propolis samples were collected in Brejo Grande/SE – Brazil and identified according to their sensory characteristics, granulometry and physical chemical requirements. The content of flavonoids in dried extract was determined. Solutions of red propolis (EEP) were prepared at concentrations of 1%; 2.5%; 5% and 7.5%. The bacterial strain used was Enterococcus faecalis – ATCC 29212. The antibacterial activity was verified by in vitro tests (disk diffusion test and determination of minimum bactericidal concentration – CBM) and ex vivo (using human extracted teeth). The test, ex vivo contaminated teeth were divided into three groups with 10 teeth each. Group 1 was treated with propolis to 7.5% (concentration determined in CBM test), the Group 2 was treated as positive control with sodium hypochlorite solution 2.5% and Group 3 was used as a negative control and was treated only with sterile saline.Result:The extract of propolis promoted inhibition zone compared to results from solution of sodium hypochlorite to 2.5%, showing values between 12 and 16 mm. There was no bacterial growth after root conduct irrigation with EEP to 7.5%.Conclusion:Propolis collected showed medium content of flavonoids (1.8%) and physical chemical characteristics consistent to those required by the Brazilian Government. At 7.5% of propolis extract, we observed a higher antibacterial potential than others groups.

PURPOSE:To assess the evolution profile of the immunohistochemical expression of stromal constituents over the time-course of wound healing in a murine model.METHODS: Surgical wounds were performed in the back of 24 Wistar rats. After three, seven, 14 and 21 days, six rats were euthanized and the wounded histologically processed to assess the immunohistochemical expression of CD3, CD20, CD31, α-SMA and type-I collagen. Non-injured skin samples (NSS) were used as control. Data were subjected to statistical analysis using ANOVA and Tukey test.RESULTS: The mean of CD3 and CD20 positive cells in the wounds was significantly higher than in NSS at seven and 14 days (p<0.001). The blood vessels content was significantly lower than in NSS (p<0.05) at three days, but increased at seven and 14 days (p<0.01). The mean of α-SMA positive cells at seven, 14 and 21 days was higher than in NSS (p<0.05). The relative content of type I collagen increased from three to 21 days, but remained lower than in NSS (p<0.05).CONCLUSIONS:Lymphoid cells, myofibroblasts and microvessels contents varied over the time-course of wound healing, with peak at seven days and progressive reduction until 21 days. The type I collagen content increased over time.

The aim of this study was to assess the effect of oral administration of Hydroalcoholic Extract of Green Propolis (HEGP) on dermal carcinogenesis in rodent model. For the biological assay, we used 36 mice, assigned into 6 groups (n=6): CTR (treated with 100 mg/kg HEGP and no tumor induction), TUM (treated with water and tumor induction), GP10 (treated with 10 mg/kg HEGP and tumor induction), GP50 (treated with 50 mg/kg HEGP and tumor induction) and GP100 (treated with 100 mg/kg HEGP and tumor induction). Cancer induction was performed in the back of the mice by topical application of DMBA. After 16 weeks, mice were euthanized and their backs were submitted to post-mortem histological analysis. The mean number of lesions developed in TUM (4.14±0.89) was significantly higher than in GP10 (2.05±1.02), GP50 (1.8±1.92) and GP100 (2.5±1.73) (p<0.05). The tumors formed in HEGP-treated groups were histologically more differentiated, but only in PV100 in situ lesions were evidenced. Infiltration of anatomical noble structures was less frequent in HEGP-treated groups (p<0.05). Our data suggest that oral administration of HEGP provided partial inhibition of DMBA-induced dermal carcinogenesis, as well as appeared to modulate the differentiation and infiltrative potential of the carcinomas in rodent model.

El objetivo de este estudio fue evaluar el efecto de la administración oral de extracto hidroalcohólico del propóleos verde (HEGP) sobre la carcinogénesis dérmica en modelo de roedores. Para el ensayo biológico, se utilizaron 36 ratones asignados en 6 grupos (n = 6): CTR (tratado con 100 mg/kg HEGP y sin inducción de tumores), TUM (tratada con agua e inducción de tumores), GP10 (tratado con 10 mg/kg HEGP e inducción de tumores), GP50 (tratado con 50 mg/kg HEGP e inducción de tumores) y GP100 (tratado con 100 mg/kg HEGP e inducción de tumores). La inducción de cáncer se llevó a cabo en la región dorsal de los ratones por aplicación tópica de DMBA. Después de 16 semanas, los ratones fueron sacrificados y sus dorsos fueron sometidos a análisis histológico post-mortem. El número medio de lesiones desarrolladas en TUM (4,14±0,89) fue significativamente mayor que GP10 (2,05±1,02), GP50 (1,8±1,92) y gp100 (2,5±1,73) (p<0,05). Los tumores formados en grupos tratados con HEGP fueron histológicamente más diferenciados, pero sólo en PV100 las lesiones in situ fueron manifiestas. La infiltración de las estructuras anatómicas blanco fue menos frecuente en los grupos tratados con HEGP (p<0,05). Nuestros datos sugieren que la administración oral de HEGP proporciona una inhibición parcial de la carcinogénesis dérmica inducida por DMBA, así como pareció modular la diferenciación y potencial infiltrante de los carcinomas en el modelo animal.

OBJETIVO: Avaliar o efeito do extrato aquoso da Hyptis fructicosa sobre a regeneração hepática após hepatectomia parcial em ratos. MÉTODOS: Dezesseis ratos foram divididos em dois grupos: C (grupo controle) e HF (ratos que receberam o extrato aquoso da Hyptis fructicosa durante quatro dias na dose de 100mg/kg/dia). No dia consecutivo deste tratamento, os animais de ambos os grupos foram submetidos a hepatectomia de aproximadamente 67% do fígado. Vinte e quatro horas depois, eles foram sacrificados, e que a massa restante do fígado foi retirado e preparado para ser estudado através da técnica de imuno-histoquímica PCNA. RESULTADOS: O índice de regeneração hepática do grupo HF foi 53,56 ± 18,91%, enquanto no grupo C foi de 21,12 ± 8,29% (p=0,0003). CONCLUSÃO: Estes resultados mostram que a administração do extrato aquoso da Hyptis fructicosa na dose de 100mg/kg/dia aumentou a proliferação de hepatócitos no grupo HF.

PURPOSE: To evaluate the effect of aqueous extract of Hyptis fructicosa on hepatic regeneration after partial hepatectomy in rats. METHODS: Sixteen rats were divided in two groups: C (Control Group) and HF (Whose rats received aqueous extract of Hyptis fructicosa during 4 days using the dose of 100 mg/kg/day). On the consecutive day of this treatment, the animals of both groups underwent hepatectomy of about 67% of liver. Twenty four hours later, they were sacrificed, and the remaining mass of liver was removed and prepared to be studied through the PCNA immunohistochemical technique. RESULTS: The liver regeneration index of HF group was 53.56 ± 18.91%, while in C group was 21.12 ± 8.29% (p=0.0003). CONCLUSION: These results show that the administration of aqueous extract of Hyptis fructicosa using the dose of 100mg/kg/day increased the hepatocyte proliferation in the group HF.