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Contraceptive effect of Uncaria tomentosa (cat's claw) in rats with experimental endometriosis / Efeito anticoncepcional da Uncaria tomentosa (unha-de-gato) em ratas com endometriose experimental
Nogueira Neto, João; Cavalcante, Frederico Lucas Lima Paiva; Carvalho, Rafael Antonio Freire; Rodrigues, Taciana Gabrielle Pinheiro de Moura; Xavier, Mariana Santana; Furtado, Pablo Gustavo Ribeiro; Schor, Eduardo.
  • Nogueira Neto, João; s.af
  • Cavalcante, Frederico Lucas Lima Paiva; Federal University of Maranhao. BR
  • Carvalho, Rafael Antonio Freire; Federal University of Maranhao. BR
  • Rodrigues, Taciana Gabrielle Pinheiro de Moura; Federal University of Maranhao. BR
  • Xavier, Mariana Santana; Federal University of Maranhao. BR
  • Furtado, Pablo Gustavo Ribeiro; s.af
  • Schor, Eduardo; UNIFESP. Sao Paulo. BR
Acta cir. bras ; 26(supl.2): 15-19, 2011. ilus, tab
Article in English | LILACS | ID: lil-602638
ABSTRACT

PURPOSE:

Evaluate the histological changes in parenchyma´s epithelial layer of the uterus and ovarian of rats with induced endometriosis, treated with Uncaria tomentosa extract.

METHODS:

29 rats with experimental endometriosis, were selected and divided in three groups The uncaria group received 32mg/ml of Uncaria tomentosa extract, 1ml administered daily and the placebo group received 1ml of saline 0.9 percent per day, during for 14 days (both groups); the leuprolide group received leuprolide acetate 1mg/kg body weight applied single subcutaneous dose. In the 15th day of treatment the uterine horn and ovaries were removed for histopathological analysis.

RESULTS:

The uncaria group presented nine samples (90 percent) with immature ovarian follicles, whereas the placebo group did not present any case and in the leuprolide group there were eight rats (88 percent) with the same change. The placebo group showed mature corpus luteum in all animals, occurring less frequent in uncaria (10 percent) and leuprolide (22 percent) groups. The uterine epithelium showed weak proliferative in nine (90 percent) samples of the uncaria group, in two (20 percent) animals in the placebo group and seven (77.8 percent) rats in the leuprolide group.

CONCLUSIONS:

The findings suggest that Uncaria tomentosa has contraceptive effect.
RESUMO

OBJETIVO:

Avaliação histológica do útero e parênquima ovariano de ratas com endometriose induzida tratadas com extrato de Uncaria tomentosa.

MÉTODOS:

Foram selecionadas 29 ratas com endometriose experimental e formados três grupos O grupo uncaria recebeu extrato de Uncaria tomentosa com 32mg/ml, administrado 1ml ao dia e o grupo placebo recebeu 1ml de solução salina a 0,9 por cento, ambos por 14 dias; o grupo leuprolida recebeu acetato de leuprolida 1mg/kg de peso corporal aplicado via subcutânea dose única. No 15° dia de tratamento realizou-se retirada de corno uterino e ovários para análise histopatológica.

RESULTADOS:

O grupo uncaria apresentou nove amostras (90 por cento) com maturação incompleta dos folículos ovarianos, já o grupo placebo não apresentou nenhum caso e no grupo leuprolida houve oito ratas (88 por cento) com a mesma alteração. O grupo placebo apresentou corpo lúteo maduro em todos os animais, acontecendo de forma menos freqüente nos grupos uncaria (10 por cento) e leuprolida (22 por cento). O epitélio uterino se mostrou fracamente proliferativo em nove (90 por cento) das amostras do grupo unacaria, em dois (20 por cento) casos do grupo placebo e sete (77.8 por cento) casos no grupo leuprolida.

CONCLUSÃO:

Os achados sugerem que a Uncaria tomentosa tem efeito anticoncepcional.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Plant Extracts / Contraceptive Agents / Cat's Claw / Endometriosis / Phytotherapy Type of study: Evaluation studies / Prognostic study Limits: Animals Language: English Journal: Acta cir. bras Journal subject: General Surgery / Procedimentos Cir£rgicos Operat¢rios Year: 2011 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Maranhao/BR / UNIFESP/BR

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Full text: Available Index: LILACS (Americas) Main subject: Plant Extracts / Contraceptive Agents / Cat's Claw / Endometriosis / Phytotherapy Type of study: Evaluation studies / Prognostic study Limits: Animals Language: English Journal: Acta cir. bras Journal subject: General Surgery / Procedimentos Cir£rgicos Operat¢rios Year: 2011 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Maranhao/BR / UNIFESP/BR