RGD Reference Report - Characterization of a new rodent model of diabetes insipidus: the Roman high avoidance rat homozygous for diabetes insipidus. - Rat Genome Database

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Characterization of a new rodent model of diabetes insipidus: the Roman high avoidance rat homozygous for diabetes insipidus.

Authors: Herman, JP  Sladek, CD  Hansen, CT  Gash, DM 
Citation: Herman JP, etal., Neuroendocrinology. 1986;43(3):340-7.
RGD ID: 2314670
Pubmed: (View Article at PubMed) PMID:3736782

These experiments were designed to characterize the nature and extent of diabetes insipidus present in a new model of genetic vasopressin (VP) deficiency, the Roman high avoidance rat homozygous for diabetes insipidus (RHA: di/di strain). The new strain was developed from an initial cross between Long-Evans derived Brattleboro (LE:di/di) rats and normal Roman high avoidance (RHA: +/+) rats, and has been bred to be congenic with the parent RHA: +/+ strain. RHA: di/di rats exhibited polydipsia, excreted dilute urine, and exhibited elevated plasma osmolality. RHA: di/di rats shows a similar urinary response to dehydration as LE: di/di rats. VP was undetectable by radioimmunoassay in the serum, brain, and neurohypophysis of RHA: di/di rats. VP-neurophysin containing cells were not observed in the brains of RHA: di/di rats upon immunocytochemical analysis. Thus, the new RHA: di/di strain exhibits essentially the same profile of diabetes insipidus as the LE: di/di rat. The congenic relationship between RHA: di/di and RHA: +/+ rats makes the RHA: di/di rat a useful model under circumstances where genetic variables unrelated to VP deficiency may confound the interpretation of data.



Disease Annotations    

Phenotype Annotations    

Mammalian Phenotype
Objects Annotated

Strains
RHA/N-di  (Roman high avoidance-di mutation)


Additional Information