Lophomonas blattarum cockroach parasite that causes uncommon pneumonia in humans

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Lophomonas blattarum cockroach parasite that causes uncommon pneumonia in humans

Authors
Type
Published Article
Journal
Revista Mvz Córdoba
Publisher
Universidad de Cordoba
Publication Date
Jan 07, 2020
Accepted Date
Dec 07, 2019
Volume
1
Issue
25
Identifiers
DOI: 10.21897/rmvz.1948
Source
MyScienceWork
Keywords
License
Green

Abstract

Lophomonas blattarum is a protozoan that parasites the intestinal tract of termites and cockroaches; It belongs to the supergroup Excavata, Parabasalia of first rank and Cristamonadida of second rank (1). They are unicellular, flagellated, free-living, symbionts and endosymbionts diners (2).L. blattarum is eliminated in the cockroach feces and as has been shown for other flagellated protozoa (3,4), and according to Martínez-Girón and Ribas (5) the organism develops cysts that can survive in the environment if External conditions are adverse. Therefore, L. blattarum cysts could be inhaled to the respiratory tract and with the right conditions of humidity, temperature and oxygen, they could suffer excystation. This last process is produced by contact with reducing agents, usually bile salts or digestive enzymes, although it can also occur spontaneously. This would produce free and therefore mobile trophozoites in the airway epithelium, which would probably affect humans through protease activated receptors (5), or by interaction with specific receptors in the respiratory tract. It is proposed that the antigens penetrate the mucosa of the gastrointestinal tract by disruption and this in turn correlates with an allergic process, which is mediated by activated protease receptors (6).Chen and Meng (7) reported the first case of human lung infection with L. blattarum in China in 1993. However, in the literature only 140 cases have been reported between 1993 and 2016 and most of them were in China, about few in Spain and others in Peru (8). A case of a patient co-infected with tuberculosis was recently reported in India (2)

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