“…In the chicken, both size and charge variants are present in the pituitary gland (Houston and Goddard, 1988;Aramburo et al, 1989;Houston et al, 1990), together with glycosylated (Berghman et al, 1988;Aramburo et al, 1989Aramburo et al, , 1990aAramburo et al, , 2004Diaz et al, 1993), phosphorylated (Aramburo et al, 1990b(Aramburo et al, , 1992, cleaved and oligomeric (Aramburo et al, 2000) forms. The abundance of these forms changes during development (Aramburo et al, 2000) and in extrapituitary tissues, tissue-specific ways (e.g. in the testis, Luna et al, 2004;Martinez-Moreno et al, 2011; in lymphoid tissue, Luna et al, 2005; in the brain, Alba et al, 2011; in the neural retina Baudet et al, 2003; in the ovarian follicle, Ahumada et al, 2012).…”