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Table 1 Antihuman gonadotropin antibodies in macaque serum prior to and following three consecutive controlled ovarian stimulation (COS) cycles with recombinant human gonadotropins [46].

From: Overriding follicle selection in controlled ovarian stimulation protocols: Quality vs quantity

Protocol Number of animals 125I-hCG bounda Beforeb 125I-hCG bounda Afterb Number of animals 125I-FSH bounda Beforeb 125I-FSH bounda Afterb
First 12 3.1c 2.9 12 2.6 2.6
Secondd 9 3.4 2.9 9 2.6 2.8
  2 3.8 7.0 2 3.0 6.6
Thirdd 3 3.4 3.3 4 2.6 2.7
  6 3.1 7.0 4 2.8 6.5
  1 18.1 25.5 2 7.2 12.1
  1. aRepresents protein A precipitation of antibody-bound 125I-hCG or 125I-FSH in serum. Nonspecific binding was 2.5% and 2.3%, respectively. See [45] for methodologic details. b"Before" and "After" represents serum samples collected seven days prior to the first injection of COS cycle and the last two days of the luteal phase of the COS cycle, respectively. cBaseline levels of antibody were defined as ≤ 4% of bound radioactivity (negative response), borderline responses were represented by 4–9% of bound radioactivity, and positive responses were present if values ≥ 10%. dOne animal was ovariectomized prior to the second protocol; one animal did not exhibit an ovarian response to COS during the third protocol.