Histaminergic tuberomammillary neuron loss in multiple system atrophy and dementia with Lewy bodies

Eduardo E. Benarroch, Ann M. Schmeichel, Joseph E Parisi, Phillip Anson Low

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Background: Histaminergic neurons of the tuberomammillary nucleus are critical for maintenance of wakefulness and participate in basal ganglia modulation and sympathoexcitation. All of these functions are affected in multiple system atrophy and dementia with Lewy bodies. Objectives: To determine the involvement of histaminergic neurons in these synucleinopathies. Methods: Immunocytochemical staining for histidine decarboxylase and stereological cell counts in the posterolateral hypothalamus from six cases with multiple system atrophy, six with dementia with Lewy bodies, and five healthy controls. Results: Compared with healthy controls, significant reduction of histaminergic neurons was found both in multiple system atrophy (total estimated cell count, 94,677±5,521 vs. 169,579±12,443; P<0.001) and in dementia with Lewy bodies (91,110±13,021 vs. 169,579±12,443; P<0.001). Conclusions: Loss of tuberomammillary histaminergic neurons could potentially contribute to motor, sleep, and autonomic manifestations of both multiple system atrophy and dementia with Lewy bodies.

Original languageEnglish (US)
JournalMovement Disorders
DOIs
StateAccepted/In press - 2015

Fingerprint

Multiple System Atrophy
Lewy Body Disease
Neurons
Cell Count
Histidine Decarboxylase
Lateral Hypothalamic Area
Wakefulness
Basal Ganglia
Hypothalamus
Sleep
Maintenance
Staining and Labeling

Keywords

  • Dementia with Lewy bodies
  • Multiple system atrophy
  • Tuberomammillary nucleus

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology

Cite this

Histaminergic tuberomammillary neuron loss in multiple system atrophy and dementia with Lewy bodies. / Benarroch, Eduardo E.; Schmeichel, Ann M.; Parisi, Joseph E; Low, Phillip Anson.

In: Movement Disorders, 2015.

Research output: Contribution to journalArticle

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abstract = "Background: Histaminergic neurons of the tuberomammillary nucleus are critical for maintenance of wakefulness and participate in basal ganglia modulation and sympathoexcitation. All of these functions are affected in multiple system atrophy and dementia with Lewy bodies. Objectives: To determine the involvement of histaminergic neurons in these synucleinopathies. Methods: Immunocytochemical staining for histidine decarboxylase and stereological cell counts in the posterolateral hypothalamus from six cases with multiple system atrophy, six with dementia with Lewy bodies, and five healthy controls. Results: Compared with healthy controls, significant reduction of histaminergic neurons was found both in multiple system atrophy (total estimated cell count, 94,677±5,521 vs. 169,579±12,443; P<0.001) and in dementia with Lewy bodies (91,110±13,021 vs. 169,579±12,443; P<0.001). Conclusions: Loss of tuberomammillary histaminergic neurons could potentially contribute to motor, sleep, and autonomic manifestations of both multiple system atrophy and dementia with Lewy bodies.",
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N2 - Background: Histaminergic neurons of the tuberomammillary nucleus are critical for maintenance of wakefulness and participate in basal ganglia modulation and sympathoexcitation. All of these functions are affected in multiple system atrophy and dementia with Lewy bodies. Objectives: To determine the involvement of histaminergic neurons in these synucleinopathies. Methods: Immunocytochemical staining for histidine decarboxylase and stereological cell counts in the posterolateral hypothalamus from six cases with multiple system atrophy, six with dementia with Lewy bodies, and five healthy controls. Results: Compared with healthy controls, significant reduction of histaminergic neurons was found both in multiple system atrophy (total estimated cell count, 94,677±5,521 vs. 169,579±12,443; P<0.001) and in dementia with Lewy bodies (91,110±13,021 vs. 169,579±12,443; P<0.001). Conclusions: Loss of tuberomammillary histaminergic neurons could potentially contribute to motor, sleep, and autonomic manifestations of both multiple system atrophy and dementia with Lewy bodies.

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