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Nessler J, Wunderlich C, Eikelberg D, Beineke A, Raue J, Runge M, Tipold A, Ganter M, Rehage J. Holoprosencephalia, hypoplasia of corpus callosum and cerebral heterotopia in a male belted Galloway heifer with adipsia. BMC Vet Res 2022; 18:51. [PMID: 35057802 PMCID: PMC8772152 DOI: 10.1186/s12917-022-03152-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/10/2022] [Indexed: 11/25/2022] Open
Abstract
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.
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Affiliation(s)
- Jasmin Nessler
- Department for Small Animal Internal Medicine and Surgery, University of Veterinary Medicine Hannover, Foundation, Buenteweg 9, 30559, Hannover, Germany.
| | - Christian Wunderlich
- Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, 30173, Hannover, Germany
| | - Deborah Eikelberg
- Institute for Pathology, University of Veterinary Medicine Hannover, Foundation, Buenteweg 17, 30559, Hannover, Germany
| | - Andreas Beineke
- Institute for Pathology, University of Veterinary Medicine Hannover, Foundation, Buenteweg 17, 30559, Hannover, Germany
| | - Jonathan Raue
- Department for Small Animal Internal Medicine and Surgery, University of Veterinary Medicine Hannover, Foundation, Buenteweg 9, 30559, Hannover, Germany
| | - Martin Runge
- Lower Saxony State Office for Consumer Protection and Food Safety Food and Veterinary Institute Braunschweig/Hannover, Eintrachtweg 17, 30173, Hannover, Germany
| | - Andrea Tipold
- Department for Small Animal Internal Medicine and Surgery, University of Veterinary Medicine Hannover, Foundation, Buenteweg 9, 30559, Hannover, Germany
| | - Martin Ganter
- Clinic for Swine, Small Ruminants and Forensic Medicine, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, 30173, Hannover, Germany
| | - Jürgen Rehage
- Clinic for Cattle, University of Veterinary Medicine Vienna (Vetmeduni Vienna), Veterinaerplatz 1, A-1210, Vienna, Austria
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