Comparative analytical characterization of two commercial human follicle-stimulating hormones extracted from human urine.

Abstract:

OBJECTIVE:Pharmaceutical preparations of human menopausal gonadotrophin (hMG), urine-derived follicle-stimulating hormone (u-FSH) and highly purified u-FSH (u-FSH-HP) have been available since the early 1960s and the mid 1980s and 1990s, respectively. Another commercial preparation of u-FSH-HP, Folyrmon P, was launched in Japan in 1999. The aim of this study is to assess the purity of Folyrmon P and to compare it with Fertinorm-P, another commercial preparation of u-FSH-HP that has been available since 1993. METHODS:Folyrmon P and Fertinorm-P were assessed for total protein content, biological activity, immunological activity, specific activity, purity and levels of protein contamination. RESULTS:Folyrmon P, which is extracted from the urine of post-menopausal women, has a specific activity of between 4000 and 5000 IU/mg, while Fertinorm-P, which is also manufactured from the urine of post-menopausal women, has a specific activity of at least 10,000 IU/mg. It has been well documented that commercially available hMG and u-FSH preparations can contain a number of urine-derived protein contaminants. This also proves to be the case for Folyrmon P, in which contaminant proteins other than FSH were shown to be present. It was also demonstrated that both preparations, Folyrmon P and Fertinorm-P, contained high levels of oxidized FSH. CONCLUSIONS:The low specific activity and high level of contaminants in Folyrmon P indicate that this u-FSH is not highly purified. Overall, Fertinorm-P, with higher specific activity and lower levels of contaminant proteins, appears to be of higher quality compared with Folyrmon P.

journal_name

Curr Med Res Opin

authors

Bassett R,Ceccarelli D,Crisci C,di Tria AM,Mancinelli M,Martelli F,Mendola D,Pezzotti A

doi

10.1185/030079905X48410

keywords:

subject

Has Abstract

pub_date

2005-06-01 00:00:00

pages

899-905

issue

6

eissn

0300-7995

issn

1473-4877

journal_volume

21

pub_type

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