14 research outputs found
Evaluation of antiulcerogenic activity of aqueous extract of Brassica oleracea var. capitata (cabbage) on Wistar rat gastric ulceration
Interbular space characterization in adult capybara (Hydrochoerus hydrochaeris) testis
Cat, cougar, and jaguar spermatogenesis: a comparative analysis
This work presents a comparative review about the spermatogenic process in cats (Felis domestica), jaguars (Panthera onca) and cougars (Puma concolor), with emphasis on testicular biometry, gonadossomatic index, volumetric proportion of testicular parenchyma components, tubular diameter, seminiferous epithelial height and seminiferous tubule length. It was an approach of the differences among the cell proportions that allowed conclusions about the overall yield of spermatogenic process and Sertoli cell index in three feline species.O processo espermatogênico do gato doméstico (Felis domestica), da onça-pintada (Panthera onca) e da onça-parda (Puma concolor) são analisados de forma comparativa, dando-se ênfase à biometria testicular, ao Ãndice gonadossomático, à proporção volumétrica dos constituintes do parênquima testicular, ao diâmetro tubular, à altura do epitélio seminÃfero e ao comprimento dos túbulos seminÃferos. Abordam-se ainda as diferenças entres as razões celulares que permitem conclusões sobre o rendimento do processo espermatogênico e Ãndices de células de Sértoli das três espécies
Cat, cougar, and jaguar spermatogenesis: a comparative analysis
This work presents a comparative review about the spermatogenic process in cats (Felis domestica), jaguars (Panthera onca) and cougars (Puma concolor), with emphasis on testicular biometry, gonadossomatic index, volumetric proportion of testicular parenchyma components, tubular diameter, seminiferous epithelial height and seminiferous tubule length. It was an approach of the differences among the cell proportions that allowed conclusions about the overall yield of spermatogenic process and Sertoli cell index in three feline species
Ointment of Brassica oleracea var. capitata Matures the Extracellular Matrix in Skin Wounds of Wistar Rats
Wound healing is a complex process that aims to restore damaged tissue. Phytotherapeutics, such as cabbage, Brassica oleracea var. capitata (Brassicaceae), and sunflower, Helianthus annuus L. (Asteraceae) oil, are used as wound healers. Five circular wounds, each 12 mm in diameter, were made in the dorsolateral region of each rat. The animals were divided into four groups: balsam (B. oleracea); ointment (B. oleracea); sunflower oil (Helianthus annuus); control (saline solution 0.9%). These products were applied daily for 20 days and every four days the tissues of different wounds were removed. The wound contraction area, total collagen, types I and III collagen, glycosaminoglycans, and tissue cellularity were analyzed. In the groups that received ointment and balsam there was reduction in the wound area on days 4, 8, 12, and 20. Throughout the trial period, the balsam and ointment groups showed a higher amount of total collagen, type I collagen, and glycosaminoglycan compared to the others groups. The rats in the groups treated with B. oleracea var. capitata showed a higher number of cells on days 8, 16, and 20. B. oleracea was effective in stimulating the maturation of collagen and increasing the cellularity, as also in improving the mechanical resistance of the newly formed tissue
NÃveis de energia digestÃvel na dieta de piauçu (Leporinus macrocephalus) no desenvolvimento testicular em estágio pós-larval
Objetivando-se determinar o efeito do nÃvel de energia digestÃvel da dieta no desenvolvimento testicular de piauçu (Leporinus macrocephalus) foram utilizados 600 peixes com peso e comprimento médio inicial de 0,33 ± 0,11 g e 2,94 ± 0,39 cm, respectivamente. Foram realizados quatro tratamentos (2.600, 2.700, 2.800 e 2.900 kcal de ED/kg de ração). Verificou-se que o nÃvel de energia não influenciou o peso corporal médio final e comprimento total. Foi verificado efeito quadrático (P<0,02) no peso da gônada aos 60 dias. Foi verificado efeito quadrático (P<0,02) no Ãndice gonadossomático aos 60 dias. Os peixes do tratamentos com 2.800 e 2.900 kcal de ED/kg
apresentaram nÃtida formação de cistos de espermatogônias primárias e secundárias. Os animais dos grupos com 2.600 e 2.700 kcal de ED/kg apresentaram formação de cistos de espermatogônias primária, apenas.The objective of this study was to evaluate the effect of energy levels on testicular development of the piauçu (Leporinus macrocephalus). Six hundred fishes, averaging initial weight and length of 0.33 ± 0.11 g and 2.94 ± 0.39, respectively, were utilized. The experiment was carried out according to a completely randomized design, with 4 treatments (2600, 2700, 2800, and 2900 kcal DE/kg). Energy level did not significantly affect average final body weight and total length. Quadratic effect on gonads weight (P<0.02) at 60 days was verified. Quadratic effect on the gonad-somatic index (P<0.02) at 60 days was verified. The treatments with 2800 and 2900 kcal DE/kg showed the primary and secondary spermatogonia rounded by Sertoli cells in
a typical cyst formation. The treatments with 2600 and 2700 kcal DE/kg
showed development of primary spermatogonia cyst only
Evaluation of antiulcerogenic activity of aqueous extract of Brassica oleracea var. capitata (cabbage) on Wistar rat gastric ulceration
The cabbage (Brassica oleraceae var. capitata) is an herbaceous and leafy plant which belongs to the Brassicaceae family, native to coastal southern and Western Europe. Used in cooking for its nutritional value also has known anti-inflammatory activity.
We studied the antiulcerogenic activity of aqueous extract of Brassica oleracea var. capitata (AEB) in order to validate ethnobotanical claims regarding the plant use in the gastric disorders. Acute gastric ulcers were induced in rats by the oral administration of acetylsalicylic acid. The gastroprotective potential of the AEB (0.250, 0.500 and 1.000 mg.kg-1/body weight) was compared with omeprazole (20 mg.kg-1/body weight). The stomach analysis indicated that treatment with AEB inhibited the gastric damage. The gastroprotective activity as evidenced by its significant inhibition in the formation of ulcers induced by chemical agent with a maximum of 99.44% curation (250 mg.kg-1 body weight) in acetylsalicylic acid-induced ulcers. The AEB demonstrated good antiulcerogenic activities which justify the inclusion of this plant in the management of gastric disorders. Further experiments are underway to determine which antiulcer mechanisms involved in gastroprotection.O repolho (Brassica oleracea var. capitata) é uma planta de folhas herbáceas pertencente à famÃlia Brassicaceae, nativa na costa sul e oeste da Europa. Usado na culinária por seu valor nutritivo, possui conhecida atividade anti-inflamatória. Avaliar a atividade antiulcerogênica do extrato aquoso de Brassica oleracea var. capitata (AEB), a fim de validar os conhecimentos etnobotânico do uso da espécie em distúrbios gástricos. Úlceras gástricas foram induzidas em ratos pela administração oral de ácido acetilsalicÃlico. O potencial gastroprotetor de AEB (0,250, 0,500 e 1,000 mg.kg-1/peso) foram comparados com omeprazol (20 mg.kg-1/peso). As análises dos estômagos indicaram que o tratamento com AEB inibiu a progressão da lesão gástrica. A atividade gastroprotetora foi evidenciada por sua significativa inibição da progressão da úlcera induzida por agentes quÃmicos, com o máximo de 99,44% eficácia (250 mg.kg-1/peso) frente a úlceras gástricas induzidas por ácido acetilsalicÃlico. O AEB demonstrou atividade cicatrizante de úlceras gástricas, o que justifica a inclusão da espécie em tratamentos de distúrbios gástricos. Estudos futuros estão em andamento para determinar quais os mecanismos antiulcerogêncios estão envolvidos com a gastroproteção
Morfometria testicular e o túbulo seminÃfero da onça-pintada (Panthera onca) adulta
Na maioria dos mamÃferos, observa-se uma relação direta entre o peso testicular e a produção espermática. O tamanho testicular reflete principalmente o comprimento total do túbulo seminÃfero, uma vez que este é o seu principal componente. A composição do parênquima testicular e o tamanho relativo dos testÃculos de uma espécie podem fornecer valiosas informações sobre a fisiologia reprodutiva e até mesmo sobre seu sistema de acasalamento. Cinco onças-pintadas adultas foram investigadas por meio da biometria corporal, testicular e biópsia incisional testicular, com o objetivo de relacionar os dados de morfometria testicular e do túbulo seminÃfero aos da massa corporal de animais mantidos em cativeiro. O peso corporal médio das onças-pintadas deste experimento foi de 78,5 kg, dos quais 0,034% foi de massa testicular e 0,022% especificamente em túbulos seminÃferos, que representaram cerca de 77,7% do parênquima testicular. O diâmetro médio dos túbulos seminÃferos em onça-pintada foi de 257mm, e a espessura média do epitélio seminÃfero, de aproximadamente 90mm. A onça-pintada apresenta cerca de 12,2 metros de túbulo seminÃfero por grama de testÃculo.For the majority of mammals, there is a direct relationship between testicular weight and sperm production. The testicular size reflects mainly the total length of seminiferous tubules, since this is its main component. The composition of the testicular parenchyma and the relative size of the testicles in one species can provide valuable information regarding the reproductive physiology and even the mating strategy of this species. In this work, five adult jaguars were investigated using testicular biopsy, in order to relate data on testicle morphometry and seminiferous tubule with the corporal mass in captive animals The medium corporal weight of the jaguars in the present experiment was 78,5 kg, of which about 0,034% correspond to the testicular mass, and 0,022% specifically to the seminiferous tubules, which represented about 77,7% of the testicular parenchyma. The average diameter of seminiferous tubules was 257 μm, and the average thickness of the seminiferous epithelium was about 90 μm. Jaguars have about 12,2 meters of seminiferous tubules by testicle gram