ISSN:
1573-9368
Keywords:
gene transfer
;
transgenic
;
swine
;
growth hormone
;
PEPCK-bGH
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Transgenic pigs were created that harboured a phosphoenol pyruvate carboxykinase-bovine growth hormone construct (PEPCK-bGH). Four founder animals and two transgenic offspring from one line were evaluated between 61/2 and 12 months of age. There was no evidence of severe hepatic or renal lesions in these pigs, which characterised transgenic PEPCK-bGH mice previously described. While glomerular and tubular lesions in kidney sections were not identified in the transgenic pigs, mesangial cell proliferation was observed in two transgenic offspring from a single line. Additionally, glomerular size was significantly increased in four of four puberal transgenic swine when compared to age- and sex-matched controls (28.30±4.1 vs. 14.2±2.7×105 μm3; representing 3 transgenic lines,p〈0.05). Surprisingly, no mature adipocytes were observed in subcutaneous sections obtained in transgenic GH pigs. Histological evaluation of these transgenic pigs further illustrates the requirement for precise control of growth-related genes and their protein products.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01976771
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