O objetivo deste trabalho foi analisar a atividade antiproliferativa do sulfato de vincristina em cultivos de tumores mamários caninos in vitro por meio da determinação de concentração inibitória e estabelecimento do estadiamento clínico. Amostras frescas obtidas de 20 pacientes caninas com neoplasia mamária foram fatiadas e cultivadas individualmente na presença e ausência de sulfato de vincristina durante três dias para determinar a viabilidade e a citotoxicidade. Quinze amostras apresentaram sensibilidade ao sulfato de vincristina proporcional à dose. Amostras com o estágio clínico avançado apresentaram crescimento celular correlacionado ao potencial proliferativo dos tumores malignos de se desenvolverem melhor que os benignos em cultivo celular. Concluiu-se que o método utilizado pode ser adaptado como modelo de aplicabilidadeno estudo de resposta tumoral a drogas antitumorais em cultivos primários.
This study evaluated the population dynamics and ownerships of dogs and cats from the city of Jaguapitã, southern Brazil. The human to dog and cat ratios were 4.6 and 21.5, respectively. Comparatively more dogs (n=2,460) than cats (n=571) were within the households and there were significantly more male (55.8%; 679/1,217) dogs relative to females (44.2%; 538/1217). Most cats (69.2%; 180/260) did not received any antiparasitic medication, were not immunized against rabies (91.2%; 237/260) or any specific infectious disease (91.5%; 238/260). Less than half (40.8%; 106/260) of these was below oneyear-of age, but a significant number of cats was without any definite breed (81.2%; 211/260), and not spayed (93.5%; 243/260). Most dogs were of the mixed breed (69.5%; 846/1217), between one and four-years old (42.6%; 519/1217), and not spayed (96.3%; 1172/1,217). An elevated population of dogs received anthelminthic drugs (71%; 865/1,217), but most of these were not immunized against rabies (63.8% 777/1,217) or other infectious disease (58.6%; 713/1,217). Most (68.7%; 770/1,120) households were owners of a pet dog and/or cat; 54.4% (610/1,120) of these owned only dogs, 4.9% (55/1,120) were the owners of cats only, while 9.4% (105/1,120) owned pet dogs and cats. The results obtained are similar to those described in populated cities of Brazil and other countries. However, the free street access of pets associated with the reduced level of immunization against canine and feline infectious diseases coupled with the responsibility of ownership demonstrated by most residents make these animals highly susceptible to zoonotic and infectious diseases. Additionally, the free street access of unsprayed pets increases the risk of contact with other animals and the transmission of disease. Key words: Feline and canine population, zoonosis, epidemiology ResumoEste estudo avaliou a dinâmica da população de cães e gatos e o perfil de seus respectivos guardiões na cidade de Jaguapitã, sul do Brasil. A razão homem:cão e homem:gato foi de 4,6 e 21,5, respectivamente. Em comparação, mais cães (n=2,460) do que gatos (n=571) mais cães machos (55.8%; 679/1,217) em relação as fêmeas (44.2%; 538/1217). A maioria dos gatos (69.2%; 180/260) não recebeu qualquer medicação antiparasitária, não foi vacinada contra raiva (91.2%; 237/260) ou qualquer doença infecciosa específica (91.5%; 238/260). Menos da metade destes (40.8%; 106/260) tinha idade inferior a um ano e, um número significante de gatos não apresentava definição racial (81.2%; 211/260) e não era castrado (93.5%; 243/260). A maior parte dos cães não apresentava raça definida (69.5%; 846/1217), tinha entre um e quatro anos de idade (42.6%; 519/1217) e não era castrada (96.3%; 1172/1,217). Um grande número de cães recebeu medicação antiparasitária (71%; 865/1,217), mas a maioria desses não foi imunizada contra raiva (63.8% 777/1,217) ou outra doença infecciosa (58.6%; 713/1,217). Cães e/ou gatos estavam presentes na maioria dos domicílios visitados (68.7%; 770/1,120), nos quais 54.4...
<p>This study evaluated the population dynamics and ownerships of dogs and cats from the city of Jaguapitã, southern Brazil. The human to dog and cat ratios were 4.6 and 21.5, respectively. Comparatively more dogs (<em>n</em>=2,460) than cats (<em>n</em>=571) were within the households and there were significantly more male (55.8%; 679/1,217) dogs relative to females (44.2%; 538/1217). Most cats (69.2%; 180/260) did not received any antiparasitic medication, were not immunized against rabies (91.2%; 237/260) or any specific infectious disease (91.5%; 238/260). Less than half (40.8%; 106/260) of these was below oneyear-of age, but a significant number of cats was without any definite breed (81.2%; 211/260), and not spayed (93.5%; 243/260). Most dogs were of the mixed breed (69.5%; 846/1217), between one and four-years old (42.6%; 519/1217), and not spayed (96.3%; 1172/1,217). An elevated population of dogs received anthelminthic drugs (71%; 865/1,217), but most of these were not immunized against rabies (63.8% 777/1,217) or other infectious disease (58.6%; 713/1,217). Most (68.7%; 770/1,120) households were owners of a pet dog and/or cat; 54.4% (610/1,120) of these owned only dogs, 4.9% (55/1,120) were the owners of cats only, while 9.4% (105/1,120) owned pet dogs and cats. The results obtained are similar to those described in populated cities of Brazil and other countries. However, the free street access of pets associated with the reduced level of immunization against canine and feline infectious diseases coupled with the responsibility of ownership demonstrated by most residents make these animals highly susceptible to zoonotic and infectious diseases. Additionally, the free street access of unsprayed pets increases the risk of contact with other animals and the transmission of disease.</p>
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