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  • Title: Chronic carotid glomitis in heroin addiction.
    Author: Porzionato A, Macchi V, Parenti A, De Caro R.
    Journal: Histol Histopathol; 2009 Jun; 24(6):707-15. PubMed ID: 19337969.
    Abstract:
    The aim of the present work was to investigate the occurrence and immunological characteristics of chronic carotid glomitis in opiate addicts. Carotid bodies were sampled at autopsy from 50 subjects who died of heroin intoxication (mean age 28 years), and from 16 young (24 years) and 10 older subjects (66 years) who died of trauma. Sections were stained with haematoxylin-eosin and azan-Mallory, and immunohistochemistry was carried out with anti-CD45, -CD3, -CD8, -CD4, -CD20, -CD68, -CD56. Inflammatory aggregates were not observed in young cases, but were found in 21/50 (42%) opiate cases and in 4/10 (40%) older cases. Infiltrates were mainly located in subcapsular and interlobular positions, and were also found around nerve fibres. Inflammatory aggregates were mainly composed of T suppressor/cytotoxic lymphocytes (50-80%). Monocytic/macrophagic cells and B lymphocytes comprised about 10% and 5-20% of inflammatory cells, respectively. T helper lymphocytes were fewer and only rare Natural Killer cells were found. Chronic carotid glomitis must be included among the autopsy findings of opiate addiction, and may be ascribed to inflammatory reactions to exogenous immunogens or to responses to drug-induced degenerative changes of carotid body components.
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