22 research outputs found
Evaluation Of Rat Testes Treated With Arctium Lappa L: Morphometric Study
Arctium lappa L. (burdock) is a plant brought from Japan and acclimated in Brazil, which is widely used in popular medicine all over the world. This study was carried out to assess the possible effects of A. lappa in testes of adult Wistar rats. They received the extract in water bottles at doses of 10 or 20 g/L daily for 40 days. There were no significant alterations in the biometric data including body and accessory sexual organs weight and in the histometric data such as volume density of the testis compartments and Leydig cell morphometry. Unaltered histometric and biometric data shows that A. lappa did not cause impairment of spermatogenesis.242112117Capasso, R., Izzo, A.A., Pinto, L., Bifulco, T., Vitobello, C., Mascolo, N., Phytotherapy and quality of herbal medicines (2000) Fitoterapia, 71, pp. 58-65Chen, F., Wu, A., Chen, C., The influence of different treatments on the free radical scavenging activity of burdock and variations of its active components (2004) Food Chem, 86, pp. 479-484Creasy, D.M., Pathogenesis of Male Reproductive Toxicity (2001) Toxicol. Pathol, 29, pp. 64-76França, L.R., Godinho, C.L., Testis morphometry, seminiferous epithelium cycle lengh, and daily sperm production in domestic cats (Felis catus) (2003) Biol. Reprod, 68, pp. 1556-1561França, L.R., Russell, L.D., The testes of domestic animals (1998) Male Reproduction. a Multidisciplinary Overview, pp. 197-219. , Regadera J, Martinez-Garcia, eds, Churchill Livingstone: MadridKim, I., Yang, H., Morphometric study of the testicular interstitium of rats during postnatal development. The korean (1999) J. Anat, 32, pp. 849-858Franco, I.F., Fontana, V.L., Ervas & Plantas (2002) A Medicina Dos Simples, p. 208. , Livraria Vida, EreximLeonard, S.S., Keil, D., Mehlman, T., Proper, S., Shi, X., Harris, G.K., Essiac tea: Scavenging of reactive oxygen species and effects on DNA damage (2006) J. Ethnopharmacol, 103, pp. 288-296Lin, C.C., Lu, J.M., Yang, J.J., Chuang, S.C., Ujiie, T., Anti-inflammatory and radical scavenge effects of Arctium lappa (1996) Am. J. Chin. Med, 24, pp. 127-137Lin, S.C., Chung, T.C., Lin, C.C., Ueng, T.H., Lin, Y.H., Lin, S.Y., Wang, L.Y., Hepatoprotective effects of Arctium lappa on carbon tetrachloride- and acetaminophen- induced liver damage (2000) A. J. Chin. Med, 28, pp. 163-173Lin, S.C., Lin, C.H., Lin, C.C., Lin, Y.H., Chen, C.F., Chen, I.C., Wang, L.Y., Hepatoprotective effects of Arctium lappa Linne on liver injuries induced by chronic ethanol consumption and potentiated by 10 carbon tetrachloride (2002) J. Biomed. Sci, 9, pp. 401-409Mori, H., Christensen, A.K., Morphometric analysis of Leydig cells in the normal rat testis (1980) J. Cell Biol, 84, pp. 340-354Russell, L.D., Ettlin, R.A., Sinha-Hikim, A.P., Clegg, (1990) Histological and Histopathological Evaluation of the Testis, , Cache River Press: ClearwaterPereira, J.V., Bergamo, D.C.B., Pereira, J.O., França, S.C., Pietro, R.C.L.R., Silva-Souza, Y.T.C., Antimicrobial activity of Arctium lappa constituents against microorganisms commoly found in endodontic infections (2005) Braz. Dent. Journal, 16, pp. 192-196Russell, L.D., França, L.R., Building a testis (1995) Tissue Cell, 27, pp. 129-14
Morfofisiologia do tecido intertubular e das células de Leydig de jaguatirica (Leopardus pardalis) adulta
Estudou-se o espaço intertubular e descreveu-se seu arranjo em jaguatirica adulta (Leopardus pardalis). Para tal, colheram-se fragmentos dos testĂculos, de cinco jaguatiricas adultas, provenientes de cativeiro, obtidos por biĂłpsia incisional. O compartimento intertubular correspondeu a 19,4% do parĂȘnquima, sendo 3,9% ocupado por cĂ©lulas de Leydig. Estes se apresentaram uninucleados, com o nĂșcleo arredondado e nuclĂ©olo Ășnico, e com grande quantidade de grĂąnulos pigmentares no citoplasma. O compartimento intertubular apresentou padrĂŁo do tipo II, e o tecido conjuntivo foi o componente mais abundante do tecido intertubular. Observou-se pequeno percentual de cĂ©lulas de Leydig na espĂ©cie estudada, e o nĂșmero mĂ©dio por grama de testĂculo, 33,39 x106, apresentou-se dentro da amplitude descrita para a maioria dos mamĂferos.The aim of this study was to do a quantitative investigation of the intertubular space and describe its arrangement in adult ocelots (Leopardus pardalis). In this experiment we used testicular fragments, obtained through biopsy from five adult ocelots maintained in captivity. The intertubular compartment corresponded to 19.4% of the testicular parenchyma, and 3.9% of this compartment was occupied by Leydig cells. The Leydig cells showed to be uninucleate, with rounded nuclei and single nucleoli, with a large amount of pigment granules in their cytoplasm. The intertubular compartment showed a clear pattern of type II and the conjunctive tissue was the most abundant component of the intertubular tissue. Despite the small unit volume of Leydig cells in adult ocelots, the average number per gram of testis (33.39 x106) was within the range described for most mammals
Testosterone level, nasal gland volume and Leydig cell morphometry in capybaras (Hydrochoerus hydrochaeris)
Morfofisiologia do tecido intertubular e das células de Leydig de jaguatirica (Leopardus pardalis) adulta
Desenvolvimento de embriÔes de camundongas após manutenção em diferentes soluçÔes de manipulação
Aspectos do uso territorial por onça parda (Puma concolor), através de monitoramento via satélite, na região do Parque Estadual da Serra do Brigadeiro, MG
Criptorquidismo em jaguatirica de vida livre capturada no Parque Estadual do Rio Doce, Brasil
EspermatogĂȘnese de catetos (Tayassu tajacu) Spermatogenesis in the collared peccary (Tayassu tajacu)
Realizaram-se estudos morfolĂłgico e funcional da espermatogĂȘnese em 15 testĂculos de catetos adultos, provenientes de abatedouro comercial de animais silvestres. Foram estudados os estĂĄdios do ciclo do epitĂ©lio seminĂfero (CES), a população celular dos tĂșbulos seminĂferos, o rendimento intrĂnseco da espermatogĂȘnese, o Ăndice das cĂ©lulas de Sertoli, o diĂąmetro mĂ©dio dos tĂșbulos seminĂferos e a proporção volumĂ©trica dos componentes do parĂȘnquima testicular. O coeficiente de eficiĂȘncia de mitoses espermatogoniais foi de 22,54, a eficiĂȘncia da mitose de 22,54, o rendimento meiĂłtico de 1:2,7 e o rendimento geral da espermatogĂȘnese de 1:64. Concluiu-se que a espermatogĂȘnese dos catetos Ă© muito semelhante Ă espermatogĂȘnese de suĂnos.The aim of this study was to analyze morphologically and functionally the spermatogenesis in adult collared peccary. Fifteen testes provided by a commercial wild animal abattoir were used. The stages of the seminiferous epithelium cycle, the cellular number of the seminiferous tubules, the intrinsic efficiency of spermatogenesis, the Sertoli cells, the mean diameter of the seminiferous tubules and the volumetric proportion of testicular parenchyma components were analyzed. The mitosis efficiency coefficient in collared peccary was 22.54, the meiotic profile, 1:2.7, and spermatogenesis general profile was 1:64. It was concluded that spermatogenesis in peccary is very similar to that in pigs