Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 2 de 2
Filter
Add filters








Year range
1.
Arab Journal of Laboratory Medicine [The]. 2005; 31 (1): 15-30
in English | IMEMR | ID: emr-69891

ABSTRACT

Aim: Five newly synthesized Schiff base complexes of the platinum [II] and [IV] were screened for their in vitro antibacterial and antitumor activity. Meanwhile, the protective role displayable by diethyldithiocarbamate [DDTC] against the inducible toxicity of two of platinum chelates was investigated as well. Their minimal inhibitory concentrations [MICs] were determined against narrow range of Gram negative and Gram positive bacteria while the antitumor potentials were tested against Ehrlich ascites carcinoma [EAC]. Half LD50 of the two selected antitumor complexes [naphthylaldehyde and diamino hexane [Pt [II] NDAH] and Pt [IV] NEDA] was i.p. injected in male Sprague Dawley rats then their biochemical consequences were investigated. The mode of action studies on intact cells of the most sensitive bacterium [Bacillus subtilis NRRL-B-4378] revealed that Schiff base Pt[IV] chelate derived from naphthylaldehyde and ethylene diamine [Pt [IV] NEDA] had reasonable reducing effects on microbial RNA and protein contents, while DNA was powerfully affected. Regarding their toxicity, Pt[IV] NEDA was found to be less hepato and nephro toxic than Pt[Il] NDAH. The hepatotoxic and nephrotoxic effects of these two platinum complexes seem to be reasonably ameliorated in animals post treated with DDTC as indicated by nearly restoration of normal values of the studied biochemical parameters


Subject(s)
Animals, Laboratory , Rats, Sprague-Dawley , Antineoplastic Agents , Platinum/toxicity , Ditiocarb , Cryoprotective Agents , Liver Function Tests , Kidney Function Tests
2.
Rev. Inst. Nac. Cancerol. (Méx.) ; 40(supl.1): 59-61, 1994. tab
Article in Spanish | LILACS | ID: lil-147846

ABSTRACT

Existen grandes avances en el manejo de los linfomas; desafortunadamente un porcentaje variable de casos recaerán a regímenes de primera línea. Se informan los resultados preliminares de 17 pacientes con diagnóstico de linfoma de Hodgkin refractarios a manejo de primera línea o refractarios. El esquema utilizado fue cada 3-4 semanas: combinación de etopósido 100 mg/m² por tres días, platino 100 mg/m² e ifosfamida 5g/m² fraccionados en tres días, mesna al 20 por ciento de la dosis diaria de ifosfamida por tres dosis; y dexametasona de 20 a 40 mg cada 24 horas por tres días. Trece de los 17 pacientes fueron evaluables para eficacia (dos aún en tratamiento; los otros dos abandonaron la terapia) y 16 fueron evaluables para toxicidad en 74 ciclos administrados. Se obtuvieron 11 respuestas totales (84 por ciento): seis respuestas (46 por ciento) Äcon supervivencia libre de enfermedad mínima de dos meses y máxima de 11 mesesÄ y cinco respuestas parciales (38 por ciento). La toxicidad más frecuente y grave fue neutropenia grado 4 (20 por ciento) con dos muertos por septicemia y plaquetopenia grado 4 (7 por ciento). El resto de los efectos tóxicos fueron leves y reversibles. No se observó toxicidad vasical. Concluimos que el esquema utilizado es efectivo, pero conlleva toxicidad grave en una cuarta parte de los ciclos. Consideramos que es conveniente incluir factores estimulantes de colonias en este tratamiento


Subject(s)
Adult , Middle Aged , Humans , Male , Female , Dexamethasone/administration & dosage , Dexamethasone/therapeutic use , Dexamethasone/toxicity , Drug Therapy, Combination , Etoposide/administration & dosage , Etoposide/therapeutic use , Etoposide/toxicity , Hodgkin Disease/drug therapy , Hodgkin Disease/physiopathology , Ifosfamide/administration & dosage , Ifosfamide/therapeutic use , Ifosfamide/toxicity , Mesna/administration & dosage , Mesna/therapeutic use , Mesna/toxicity , Platinum/administration & dosage , Platinum/therapeutic use , Platinum/toxicity
SELECTION OF CITATIONS
SEARCH DETAIL