Consulta: subjectFacets:"Amifostine"
Registros recuperados: 3
Data/hora: 10/06/2024 12:21:48

Chemoprotective effect of cysteamine against the induction of micronuclei by methyl methanesulfonate and cyclophosphamide
Provedor de dados: Genetics and Molecular Biology
Autores: Santos-Mello,Renato; Deimling,Luiz Irineu; Lauer Júnior,Claudio; Carvalho,Thaís Rieger de.
Cysteamine or 2-mercaptoethylamine (MEA) is an aminothiol with a well-known radioprotective action. No specific information is available in the literature about the possible chemoprotective action of MEA against genotoxic chemical agents. This paper presents the results of studies on the ability of MEA to protect mouse bone marrow polychromatic erythrocytes against the induction of micronuclei by alkylating agents such as methyl methanesulfonate (MMS) and cyclophosphamide (CP). We observed that MEA administered intraperitoneally 30 min before or 30 min after the administration of MMS or CP significantly reduced the frequency of micronucleated polychromatic erythrocytes (MNPCEs) induced by the alkylating agents. When MEA was administered in combination with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysteamine; MEA; Micronuclei; Amifostine; WR-2721.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100027

Amifostine reduces inflammation and protects against 5-fluorouracil-induced oral mucositis and hyposalivation
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: Barbosa,S.C.M.; Pereira,V.B.M.; Wong,D.V.T.; Santana,A.P.M.; Lucetti,L.T.; Carvalho,L.L.; Barbosa,C.R.N.; Callado,R.B.; Silva,C.A.A.; Lopes,C.D.H.; Brito,G.A.C.; Alencar,N.M.N.; Lima-Júnior,R.C.P.
Oral mucositis (OM) is a common and dose-limiting side effect of cancer treatment, including 5-fluorouracil (5-FU) and radiotherapy. The efficacy of the therapeutic measures to prevent OM is limited and disease prevention is not fully observable. Amifostine is a cytoprotective agent with a described anti-inflammatory potential. It is clinically used to reduce radiotherapy and chemotherapy-associated xerostomia. This study investigated the protective effect of amifostine on an experimental model of OM. Hamsters were divided into six groups: saline control group (5 mL/kg), mechanical trauma (scratches) of the right cheek pouch; 5-FU (60 and 40 mg/kg, ip, respectively, administered on days 1 and 2); amifostine (12.5, 25, or 50 mg/kg) + 5-FU + scratches....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cancer chemotherapy toxicity; Oral mucositis; 5-Fluorouracil; Amifostine; Cytokines.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000300601

Amifostine (WR-2721), a cytoprotective agent during high-dose cyclophosphamide treatment of non-Hodgkin's lymphomas: a phase II study
Provedor de dados: Brazilian Journal of Medical and Biological Research
Autores: De Souza,C.A.; Santini,G.; Marino,G.; Nati,S.; Congiu,A.M.; Vigorito,A.C.; Damasio,E.
Clinical trials indicate that amifostine may confer protection on various normal tissues without attenuating anti-tumor response. When administered prior to chemotherapy or radiotherapy, it may provide a broad spectrum of cytoprotection including against alkylating drugs. The mechanism of protection resides in the metabolism at normal tissue site by membrane-bound alkaline phosphatase. Toxicity of this drug is moderate with hypotension, nausea and vomiting, and hypocalcemia being observed. We report a phase II study using amifostine as a protective drug against high-dose cyclophosphamide (HDCY) (7 g/m2), used to mobilize peripheral blood progenitor cells (PBPC) and to reduce tumor burden. We enrolled 29 patients, 22 (75.9%) affected by aggressive and 7...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amifostine; Cytoprotection; Non-Hodgkin's lymphoma; High-dose cyclophosphamide; Peripheral blood progenitor cell mobilization.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000700009