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Full-Text Articles in Pathology
Cortical Demyelination And Depression-Like Behavior Are Associated With Histaminergic Dysregulation In A Mouse Model Of Peripheral Inflammation, Danielle Germundson-Hermanson
Cortical Demyelination And Depression-Like Behavior Are Associated With Histaminergic Dysregulation In A Mouse Model Of Peripheral Inflammation, Danielle Germundson-Hermanson
Biomedical Sciences Posters and Presentations
▪ Demyelinating diseases of the central nervous system are increasing in prevalence world-wide1,2 and manifest as motor, behavioral, and/or cognitive defects3 . The etiology and pathophysiology of demyelinating diseases remain unclear.
▪ We have previously observed cortical demyelination in our mouse model of non-anaphylactic cow’s milk allergy4 . The demyelination was associated with depression-like behaviors and region-specific increases in brain histamine and H3 receptor (H3R) levels4,5 .
❖ The brain’s central histaminergic system is tightly controlled and regulates many behaviors. Additionally, signaling through H3R plays a crucial role in oligodendrocyte differentiation, and thus, demyelination and remyelination6 .
▪ We hypothesized …
Histamine H3 Receptor Antagonism Mitigates Food-Hypersensitivity-Associated Depressive Behavior And Neuropathology In A Mouse Model Of Cow’S Milk Allergy, Danielle Germundson-Hermanson
Histamine H3 Receptor Antagonism Mitigates Food-Hypersensitivity-Associated Depressive Behavior And Neuropathology In A Mouse Model Of Cow’S Milk Allergy, Danielle Germundson-Hermanson
Biomedical Sciences Posters and Presentations
Background Histamine is best known for causing allergy symptoms, but it also regulates blood-brain barrier permeability1 and oligodendrocyte differentiation2. Thus, brain histamine levels are tightly controlled.
Previous Findings We demonstrated that histamine and histamine H3 receptor (H3R) levels were elevated in a mouse model of cow’s milk allergy (CMA) in association with intracranial mast cell activation, depression-like behaviors, and cortical demyelination3,4.
Gaps in Knowledge In humans, food allergies are often associated with neuropsychiatric disorders5-7, but the involvement of allergy induced histamine in triggering behavioral changes is unclear.
Hypothesis Repeated allergen consumption can lead to central histaminergic dysfunction through H3R, ultimately …