Journal
BMC VETERINARY RESEARCH
Volume 18, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s12917-022-03152-4
Keywords
Thirst; Drinking; Cattle; Neurological disorder; Hypernatremia; Encephalopathy; Malformation
Categories
Funding
- Deutsche Forschungsgemeinschaft
- University of Veterinary Medicine Hannover, Foundation
Ask authors/readers for more resources
This case report describes the clinical findings, MRI, and necropsy results of a Belted Galloway heifer with severe dehydration and hypernatremia, but concurrent adipsia and isosthenuria. The postmortem examination revealed a complex forebrain malformation that may be involved in the development of hypernatremia and adipsia in bovines.
Background Specialized neurons in the diencephalon detect blood hypernatremia in dehydrated animals. These neurons are connected with the pituitary gland, subsequently producing antidiuretic hormone to reabsorb water from urine in the kidneys, and to the forebrain to generate thirst and trigger drinking behavior. Case presentation This is the first case report describing clinical findings, magnetic resonance imaging (MRI) and necropsy results of a Belted Galloway heifer with severe clinical signs of dehydration and hypernatremia, but concurrent adipsia and isosthenuria. Due to insufficient recovery with symptomatic treatment, owners elected euthanasia. Postmortem MRI and necropsy revealed a complex forebrain malformation: mild abnormal gyrification of the forebrain cortex, lobar holoprosencephaly, and corpus callosum hypoplasia. The affected brain structures are well known to be involved in osmoregulation and generation of thirst in dogs, humans and rodents. Conclusions Complex forebrain malformation can be involved in the pathogenesis of hypernatremia and adipsia in bovines.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available