Abstract: The subject invention relates to methods of producing non-human transgenic mammals which produce various oligosaccharides and glycoconjugates in their milk. Additionally, the subject invention relates to the mammals themselves, the milk which they produce, compositions comprising the milk, fractions of the milk, and the purified oligosaccharides, as well as glyconjugates, present in the milk.

Abstract: The present invention provides mouse models of growth hormone insensitivity including Laron syndrome. In particular, the present invention provides transgenic mice incapable of expressing functional growth hormone receptor including mice which further cannot express functional growth hormone binding protein. The invention further provides methods for testing the usefulness of chemical compounds in the treatment of growth hormone insensitivity and diabetic end-organ disease.

Abstract: The present invention relates to antagonists of vertebrate growth hormones obtained by mutation of the third alpha helix of such proteins (especially bovine or human GHs). These mutants have growth-inhibitory or other GH-antagonizing effects. These novel hormones may be administered exogenously to mammals. The antagonists may be used to reduce the activity of growth hormone in a mammal, especially one suffering from diabetes, diabetic retinopathy, diabetic nephropathy, a growth hormone secreting tumor, acromegaly, or gigantism.

Abstract: The present invention relates to antagonists of vertebrate growth hormones obtained by mutation of the third alpha helix of such proteins (especially bovine or human GHs). These mutants have growth inhibitory or other GH-antagonizing effects. These novel hormones may be administered exogenously to animals, or transgenic animals may be made that express the antagonist. Animals have been made which exhibited a reduced growth phenotype.

Abstract: The present invention relates to antagonists of vertebrate growth hormones obtained by mutation of the third alpha helix of such proteins (especially bovine or human GHs). These mutants have growth inhibitory or other GH-antagonizing effects. These novel hormones may be administered exogenously to animals, or transgenic animals may be made that express the antagonist. Animals have been made which exhibited a reduced growth phenotype.

Abstract: Recombinant DNA molecules in which an avian retroviral long terminal repeat (LTR) has been ligated to the bovine growth hormone gene are described herein. The retroviral LTR was derived from a plasmid clone of a Schmidt Rupin strain of Rous Sarcoma Virus while the bovine growth hormone (BGH) gene was derived from a lambda-bacteriophage genomic library. Using a transient eucaryotic expression assay system, the plasmid constructs were screened for their ability to direct expression and secretion of bovine growth hormone. These constructs were co-transformed into a mammalian cell (mouse) culture in order to obtain a stable cell culture secreting large amounts of bovine growth hormone.

Abstract: Recombinant DNA constructs having an avian retroviral long terminal repeat (LTR) ligated to the bovine growth hormone gene, were co-transformed into a mammalian cell (mouse) culture in order to obtain a stable cell culture secreting large amounts of bovine growth hormone. The transformed mouse cells were encapsulated in hollow fibers and implanted into animals, thereby producing circulating bovine growth hormone.