Alessandra Guidi

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A surface plasmon resonance-based biosensor (BIA technology) and enzyme-linked immunosorbent assays (ELISA) have been used for detecting and characterizing human endothelin (ET), a potent vasoactive 21 amino acid polypeptide. Antibodies produced against the isoform ET-1 and its C-terminal eptapeptide ET-1(15-21) have been characterized with respect to their(More)
Recombinant bovine somatotropin (rBST) treatment is adopted in dairy cows to augment milk yield. Previous studies showed that insulin-like growth factor-1 (IGF-1) is present in milk from cows treated with rBST. Since IGF-1 is a suspected carcinogen, its presence in milk for human consumption is potentially a health hazard. Therefore rBST use, still(More)
Bovine Somatotropin (bST) is a peptide hormone secreted by the anterior pituitary gland and its recombinant form (rbST) is used for artificially boosting milk yield in cows. Identification of rbST is difficult in that there is little difference from the pituitary bST (pbST). In this work, we further studied the possibility of immunologically discriminating(More)
Even though occidental food production and control systems guarantee a reasonable level of safety for consumers, western countries are facing a growing phenomenon of immigration from all over the world. With this enrichment and the shuffling of cultures and customs in the same places, even alimentary habits undergo an unavoidable evolution, also influencing(More)
A gross pathology and histological investigation was carried out on bovine target organs of anabolic substances in the Molise Region (Italy). One hundred forty-four bovines (12-24 months old, 123 males and 21 females) were included in the survey. An antemortem assessment of their behavior and clinical examination were performed. After slaughter, samples of(More)
A study was performed to delineate bST and IGF-1 variation, over a whole lactation, in cows treated with a nowadays widely commercialised but little studied sustained release formulation of recombinant bST. Total bST levels were found to be exceptionally high in the first days after administration, but decreased rapidly in the second week after injection.(More)
BACKGROUND Various reports suggest a role for endothelin-1 in prostatic carcinoma. The objective of the current study was to evaluate the changes of the immunodetectable endothelin-1 in prostatic carcinomas characterized by different grades of regression due to total androgen withdrawal. METHODS An immunohistochemical study was made on eleven prostatic(More)
In this study, we assessed the expression stability of eight genes (GADPH, ACTB, 18S, YWHAZ, SDHA, HMBS, SF3A1, and EEF1A) in the white blood cells of lactating buffalos and their possible use as reference genes for studies on growth hormone (GH)-treated animals. All of the genes showed acceptable stability according to the threshold values suggested by(More)
Ethnic food consumption is a quickly growing reality within Chinese communities, which have a well-organized “internal” food market for both Asian and ethnic foods produced in the European Union. The main problems associated with these markets are related to hygienic conditions, certifications of accomplishment, and personnel management. Moreover, controls(More)
The use of recombinant bovine growth hormone (rbGH) to increase milk yield in cows is banned in some countries. In others, where it is authorised, it has triggered harsh debates on labelling of dairy products. If many studies have been performed on bovines, there is a lack of information on buffaloes, which are sometimes treated with rbGH and re-present an(More)