Biomedical subjects
C Arezzini
Publications and source records attributed to C Arezzini.
Automated determination of anti-streptolysin O antibodies by a kinetic hemolytic method.
An automated method which uses oxidized Streptolysin O and determines the anti-Streptolysin O titer in whole blood without dilution of the sample is described. The addition of a reducing agent starts the hemolysis at an initial rate which is inversely proportional to the anti-Streptolysin O titer of the sample. An instrument (Taso-matic), designed to automatically execute all of the procedures, was used. Comparison between the described method and the classical hemolytic method gave the following linear regression slope y = 1.06x-13 (r = 0.974). Precision of the method at two different anti-Streptolysin O titers (200 and 500 IU), expressed as relative standard deviation, was 12.1 and 4.7% in the between-run procedure and 10.1 and 4.9% in the within-run procedure, respectively.
Pharmacological and toxicological evaluation of polyhydroxyethylaspartamide (PHEA) as a plasma substitute.
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Effect of hyperprolactinemia and 2-BR-alpha-ergocryptine on neuroendocrine mechanism(s) for gonadotropin control.
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Modification of the tryptophanyl residue and its effects on the immunological and biological activity of human chorionic somatomammotropin.
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Weight increase of body and lymphatic tissues in dwarf mice treated with human chorionic somatomammotropin (HCS).
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Ultrastructural modifications of the testes and accessory sex glands of genetically dwarf mice after treatment with human chorionic somatomammotropin.
We have studied the effects of treatment with human chorionic somatommatropin (hCS) in the dwarf mouse on the weight and ultrastructure of the testes and accessory sex glands. We used animals of the Snell-Bagg (dw/dw) strain, whose hypophyses secrete neither prolactin nor growth hormone. The effects found were compared with those produced by a similar treatment with ovine prolactin. The administration of hCS causes a significant increase in the wet weight of the testes and accessory sex glands. Ultrastructural observations have demonstrated that hCS is able to stimulate sperminogenesis and the secretory function of the accessory sex glands. Prolactin, as shown in previous reports in the literature, has a similar action on the male reproductive system. However, contrary to the observation after prolactin therapy, no matings were observed after treatment with hCS.