A D Bolzán

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The correlation between serum levels of pituitary and thyroid hormones and the activity of two antioxidant enzymes (AOE), catalase (CAT) and superoxide dismutase (SOD), in different immune and nonimmune organs of young and old rats was investigated. Serum levels of growth hormone (GH), prolactin (Prl), thyroid-stimulating hormone (TSH), luteinizing hormone(More)
Streptonigrin (SN, CAS no. 3930-19-6) is an aminoquinone antitumor antibiotic isolated from cultures of Streptomyces flocculus. This compound is a member of a group of antitumor agents which possess the aminoquinone moiety and that includes also mitomycin C, porfiromycin, actinomycin, rifamycin and geldanamycin. Because of the potential use of SN in(More)
Microtheca semilaevis Stal is a phythophagous insect associated to Brassicaceae, and frequently occurs with other species of beetles, such as Microtheca ochroloma Stal. Despite its importance to organic farmers, there is no information in the Brazilian literature about its natural enemies. Stiretrus decastigmus (Herrich-Schaeffer) was first found and here(More)
In order to assess the possible involvement of endocrine factors and antioxidant enzymes (AOE) in the mammary pathology typically observed in old female rats, we undertook to determine the relationship between pituitary hormones, AOE activity, and histopathological changes in the mammary gland of senescent rats carrying neoplastic and nonneoplastic mammary(More)
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