Tricomicosis (tricobacteriosis) en un infante. Aspectos microbiológicos, dermatoscópicos y ultraestructurales

Bonifáz, Alexandro; Ramírez-Ricarte, Ixchel; Rodríguez-Leviz, Alejandra; Hernández, Marco Antonio López; Mena, Carlos; Valencia, Adriana

doi:10.1016/j.rchipe.2016.04.001

Cited by 7 publications

(21 citation statements)

References 17 publications

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“…This species has been demonstrated to cause clostridial myonecrosis in animals and humans [21] as well as severe septicaemia [22]. From the sample of patient 2, C. flavescens and C. lipophiloflavum were isolated; these bacteria are considered opportunistic pathogens of other body districts: the former causes superficial infection of the skin [23], and the latter causes vaginitis [24]. Another species isolated from patient 2 was Kocuria marina.…”

Section: Discussionmentioning

confidence: 99%

Characterizing Peri-Implant and Sub-Gingival Microbiota through Culturomics. First Isolation of Some Species in the Oral Cavity. A Pilot Study

Martellacci¹,

Quaranta

Fancello

et al. 2020

Pathogens

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Background: In recent years, culture-independent molecular techniques have been developed to investigate microbiota considered uncultivable. However, the data in the literature suggest that molecular techniques and cultural methods target different spectra of bacteria. The objective of this pilot study was to search for not yet identified oral species in the peri-implant and sub-gingival microbiota in patients without signs of oral pathologies, through the use of the culturomics approach, which has never been used before in dentistry. Methods: Four patients were enrolled; from each patient, samples of sub-gingival and peri-implant plaque were taken and analysed by culturomics. Results: Of 48 isolated species, only 30 had been previously identified by metagenomics in other studies; on the contrary, 12 species had never been associated with the oral cavity before, and 5 of them had never been isolated from clinical specimens. Conclusions: By adopting culturomics in dentistry, it could be possible to identify a large amount of fastidious microorganisms that inhabit the oral cavity and to more accurately characterize the microorganisms that lead to periodontitis and peri-implantitis. This evidence could represent an important step forward for the diagnosis and treatment of peri-implantitis, as well as a very useful means for the characterization of new potential aetiologic agents.

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Section: Discussionmentioning

confidence: 99%

Characterizing Peri-Implant and Sub-Gingival Microbiota through Culturomics. First Isolation of Some Species in the Oral Cavity. A Pilot Study

Martellacci¹,

Quaranta

Fancello

et al. 2020

Pathogens

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“…The rubra variety is the one that follows in frequency, and lastly the nigra, with very few cases reported in the literature. This is a Gram-positive, aerobic, coryneform-actinomycete bacterium, composed of bacillary and diphtheroid forms [ 16 , 17 ]. The family of these bacteria is usually part of the skin microbiota, representing around 50% [ 2 , 18 ].…”

Section: Reviewmentioning

confidence: 99%

“…However, it is noteworthy that there are also cases reported in the pediatric age group, when there is still no activity of the apocrine glands, presenting on the scalp, where the number of apocrine glands is scarce or null. Therefore, we consider that the etiopathogenesis is not yet well clarified and that other mechanisms may be involved [ 17 , 21 ].…”

Section: Reviewmentioning

confidence: 99%

An Overview of Trichobacteriosis (Trichomycosis): An Underdiagnosed Disease

Montes de Oca-Loyola,

Lumbán Ramírez,

Gómez-Daza

et al. 2023

Cureus

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Trichobacteriosis (trichomycosis) is an asymptomatic infection at the axillary hair level caused by a bacterium of Corynebacterium spp. The aim of this study is to identify the clinical, epidemiological, and microbiological characteristics of previously reported cases. A review was conducted including the cases of trichomycosis (trichobacteriosis) reported in the PubMed database up to June 2023. Twenty-nine articles were included, involving 365 patients in total. A higher incidence was observed in men, representing 94% of the cases, most of which were in the age range of 20-50 years. The most frequently affected clinical topography was the axillar (90% of the cases). Most of the patients presented change in hair texture and bromhidrosis, some other frequent clinical manifestations were hyperhidrosis, hair color change, and cromhidrosis; 6% of the patients were asymptomatic. The etiological agent most frequently identified was Corynebacterium spp., the flavescens variety being the most prevalent. The most common form of treatment was shaving and topical clindamycin. In conclusion, trichobacteriosis is an infection that most frequently affects men at the axillary level; it manifests clinically with few symptoms and usually has a good response to treatment.

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“…A potential candidate is Conifer Green Needle Complex (CGNC), a pharmaceutical-grade complex substance from the green verdure of Pinus sylvestris and Picea abies with antibacterial, antimycotic, and antitrichomonal activity. The susceptibility of Corynebacterium xerosis and Corynebacterium flavescens to CGNC (3.5,7,15,30, 60, 125, 250, and 500 mg/mL) was evaluated using broth dilution and agar methods. The antibacterial effect of CGNC was also evaluated after exposure for 30 minutes and 1, 3, and 24 hours at concentrations of 0, 3.5, 7, 30, 125, and 500 mg/mL.…”

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confidence: 99%

“…2,10,11 Indeed, non-diphtherial corynebacteria have been implicated in central venous catheter infections in pediatric oncology patients 12 and from catheter sites in other patients. 6 Other coryneforms such as Corynebacterium flavescens have also been implicated in skin infections [13][14][15] and, in older studies, in adults with a history of intravenous drug use. 16 Antibiotic susceptibility studies have shown that corynebacteria, including C. xerosis, develop antibiotic resistance.…”

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confidence: 99%

Antibacterial Activity of Conifer Green Needle Complex Against Corynebacteria

Soultanov

Kraeva

2020

Natural Product Communications

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Traditionally, preservatives have been used in cosmetic products to minimize bacterial contamination. Some opportunistic Corynebacterium spp. have become resistant to these preservatives and other alternatives are required. A potential candidate is Conifer Green Needle Complex (CGNC), a pharmaceutical-grade complex substance from the green verdure of Pinus sylvestris and Picea abies with antibacterial, antimycotic, and antitrichomonal activity. The susceptibility of Corynebacterium xerosis and Corynebacterium flavescens to CGNC (3.5, 7, 15, 30, 60, 125, 250, and 500 mg/mL) was evaluated using broth dilution and agar methods. The antibacterial effect of CGNC was also evaluated after exposure for 30 minutes and 1, 3, and 24 hours at concentrations of 0, 3.5, 7, 30, 125, and 500 mg/mL. Corynebacteria xerosis was inhibited when exposed to low levels of CGNC (1560 mg/mL), whereas an antibacterial effect on C. flavescens was observed at slightly higher levels (60 and 125 mg/mL). CGNC also inhibited the growth of C. xerosis and C. flavescens at various incubation time points. The most prominent effect was observed after 24 hours where all growth was inhibited at all concentrations. However, CGNC inhibited or decreased the growth of Corynebacterium spp. even at lower exposure times. The results obtained in this study demonstrated that CGNC is an effective bactericidal agent against C. xerosis and C. flavescens isolated from clinical samples and may have potential as an alternative to preservatives currently used in cosmetic products.

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Tricomicosis (tricobacteriosis) en un infante. Aspectos microbiológicos, dermatoscópicos y ultraestructurales

Abstract: TC is a rare condition that affects children, and tends to be mistaken for other diseases of the hair, such as pediculosis and mycotic infections.

Cited by 7 publications

References 17 publications

Characterizing Peri-Implant and Sub-Gingival Microbiota through Culturomics. First Isolation of Some Species in the Oral Cavity. A Pilot Study

Characterizing Peri-Implant and Sub-Gingival Microbiota through Culturomics. First Isolation of Some Species in the Oral Cavity. A Pilot Study

An Overview of Trichobacteriosis (Trichomycosis): An Underdiagnosed Disease

Antibacterial Activity of Conifer Green Needle Complex Against Corynebacteria

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