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Chemoprevention with green propolis green propolis extracted in L-lysine versus carcinogenesis promotion with L-lysine in N-Butyl-N-[4-hydroxybutyl] nitrosamine (BBN) induced rat bladder cancer / Quimioprevenção com própolis verde extraído em L-Lisina versus promoção da carcinogênese como L-Lisina em ratos induzidos ao câncer de bexiga pelo N-Butyl-N-[4-hydroxybutyl] nitrosamine (BBN)
Dornelas, Conceição Aparecida; Fechine-Jamacaru, Francisco Vagnaldo; Albuquerque, Irineu Lima; Magalhães, Hemerson Iury Ferreira; Souza, Adjair Jairo Silva de; Alves, Leonardo Alcântara; Almeida, Paulo Roberto Carvalho de; Lemos, Telma Leda Gomes de; Castro, José Daniel Vieira de; Moraes, Maria Elisabete Amaral; Moraes, Manoel Odorico.
  • Dornelas, Conceição Aparecida; UFC. Department of Pathology. Ceara. BR
  • Fechine-Jamacaru, Francisco Vagnaldo; UFC. Department of Physiology and Pharmacology. Ceara. BR
  • Albuquerque, Irineu Lima; s.af
  • Magalhães, Hemerson Iury Ferreira; s.af
  • Souza, Adjair Jairo Silva de; UFC. Department of Physiology and Pharmacology. Ceara. BR
  • Alves, Leonardo Alcântara; UFC. Department of Organic and Inorganic Chemistry. Ceara. BR
  • Almeida, Paulo Roberto Carvalho de; UFC. Department of Pathology. Ceara. BR
  • Lemos, Telma Leda Gomes de; UFC. Department of Organic and Inorganic Chemistry. Ceara. BR
  • Castro, José Daniel Vieira de; UFC. Department of Radiology. Ceara. BR
  • Moraes, Maria Elisabete Amaral; UFC. Department of Physiology and Pharmacology. Ceara. BR
  • Moraes, Manoel Odorico; UFC. Department of Physiology and Pharmacology. Ceara. BR
Acta cir. bras ; 27(2): 185-192, Feb. 2012. ilus, tab
Article in English | LILACS | ID: lil-614540
ABSTRACT

PURPOSE:

To determine the effects of green propolis extracted in L-lysine (WSDP) and of L- lysine for 40 weeks on induced rat bladder carcinogenesis.

METHODS:

The animals (groups I, II, III, IV, V and VI) received BBN during 14 weeks. Group I was treated with propolis 30 days prior received BBN, and then these animals were treated daily with propolis; Groups II and III was treated with subcutaneous and oral propolis (respectively) concurrently with BBN. The animals of Group IV were treated L-lysine; Group V received water subcutaneous; and Group VI received only to BBN. Among the animals not submitted to carcinogenesis induction, Group VII received propolis, Group VIII received L-lysine and Group IX received water.

RESULTS:

The carcinoma incidence in Group I was lower than that of control (Group VI). The carcinoma multiplicity in Group IV was greater than in Group VI. All animals treated with L-lysine developed carcinomas, and they were also more invasive in Group IV than in controls. On the other hand, Group VIII showed no bladder lesions.

CONCLUSION:

The WSDP is chemopreventive against rat bladder carcinogenesis, if administered 30 days prior to BBN , and that L-lysine causes promotion of bladder carcinogenesis.
RESUMO

OBJETIVO:

Determinar os efeitos da própolis verde extraída em L - Lisina (WSDP) e da L-Lisina por 40 semanas em ratos induzidos a carcinogênese de bexiga.

MÉTODOS:

Os animais (grupos I, II, III, IV, V e VI) receberam BBN por 14 semanas. O grupo I foi tratado com própolis 30 dias antes de receber BBN e em seguida estes animais foram tratados diariamente com própolis; Os grupos II e III foram tratados com própolis subcutânea e oral (respectivamente) e concorretemente com BBN. Os animais do grupo IV foram tratados com L- Lisina; o grupo V recebeu água subcutânea; o grupo VI recebeu apenas BBN. Entre os animais não submetidos a indução de carcinogênese, Grupo VII, receberam própolis, Grupo VIII, receberam L-Lisina e Grupo IX receberam água.

RESULTADOS:

A incidência de carcinoma no grupo I foi menor que no grupo controle (grupo IV) A multiplicidade de carcinoma no grupo IV foi maior que no grupo VI. Todos os animais tratados com L - Lisina desenvolveram carcinomas e estes foram mais invasivos no grupo IV que no grupo controle. Por outro lado o grupo VIII não apresentou lesões.

CONCLUSÃO:

WSDP é quimiopreventiva contra a carcinogese de bexiga se administrada 30 dias antes do início do BBN, e a L - Lisina causa promoção da carcinogênese de bexiga.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Propolis / Urinary Bladder Neoplasms / Butylhydroxybutylnitrosamine / Plant Extracts / Lysine Limits: Animals Language: English Journal: Acta cir. bras Journal subject: General Surgery / Procedimentos Cir£rgicos Operat¢rios Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: UFC/BR

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Full text: Available Index: LILACS (Americas) Main subject: Propolis / Urinary Bladder Neoplasms / Butylhydroxybutylnitrosamine / Plant Extracts / Lysine Limits: Animals Language: English Journal: Acta cir. bras Journal subject: General Surgery / Procedimentos Cir£rgicos Operat¢rios Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: UFC/BR