The effect of sodium chloride on the growth and morphology of dermatophytes and some other keratolytic fungi

A study of the influence of various concentrations of NaCl on 21 species of dermatophytes and other keratolytic fungi was made. Based on the sensitivity of the species to various concentrations of NaCl, it was possible to divide them into five groups. Microsporum ferrugineum and Trichophyton concentricum and T. tonsurans were the most sensitive to NaCl and were inhibited by 5%. The greatest number of species were inhibited by 12% NaCl. The fungi most tolerant to NaCl were M. cookei and M. nanum, and T. mentagrophytes, T. schoenleinii, and T. terrestre. These species were inhibited by 15%. NaCl prevented any variant change in Epidermophyton floccosum, T. mentagrophytes, and M. gypseum, but promoted a change in phenotype in M. audouinii and M. cookei, and T. gallinae. It is suggested that the word "pleomorphism" be replaced by the term sterile albinism. This term refers to that kind of cultural change when there is no evidence of sporulation and the white fluffy mycelium consists of fine sterile hyphae.Sterile albino strains of E. floccosum were induced to form macroconidia on Sabouraud cycloheximide chloramphenicol gentamicin agar (SCCGA) containing 3–5% NaCl. Also, M. audouinii formed microconidia and macroconidia in velvety growth cultured on SCCGA containing NaCl.

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Absence of Reported cases of Microsporum ferrugineum, Trichophyton violaceum, and Trichophyton schoenleinii in South Korea

Journal of Mycology and Infection ◽

10.17966/jmi.2021.26.3.51 ◽

2021 ◽

pp. 51-56

Author(s):

Kyung Duck Park ◽

Weon Ju Lee

Keyword(s):

South Korea ◽

Healthcare System ◽

Skin Disorder ◽

Population Mobility ◽

Epidermophyton Floccosum ◽

Trichophyton Violaceum ◽

Microsporum Ferrugineum ◽

Trichophyton Schoenleinii

Dermatophytosis is a skin disorder caused by dermatophytes. Dermatophytes isolated in South Korea include Trichophyton (T.) rubrum, T. mentagrophytes, T. verrucosum, T. tonsurans, T. violaceum, T. schoenleinii, Microsporum (M.) canis, M. ferrugineum, M. gypseum, and Epidermophyton floccosum. T. tonsurans was first found in South Korea in 1992. In contrast, there have been no recent reported cases of T. violaceum, T. schoenleinii, and M. ferrugineum in South Korea. Population mobility, changes in human lifestyles, development of the healthcare system, and the introduction of antifungals have brought about dermatophyte evolution in the skin microenvironment. We have reviewed the cases of dermatophytosis caused by M. ferrugineum, T. violaceum, and T. schoenleinii reported both in South Korea and globally.

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A comparative controlled trial of intralesionally-administered zinc sulphate, hypertonic sodium chloride and pentavalent antimony compound against acute cutaneous leishmaniasis

Clinical and Experimental Dermatology ◽

10.1046/j.1365-2230.1997.2510668.x ◽

1997 ◽

Vol 22 (04) ◽

pp. 169-173 ◽

Cited By ~ 2

Author(s):

K.E. SHARQUIE ◽

R.A. NAJIM ◽

I.B. FARJOU

Keyword(s):

Sodium Chloride ◽

Cutaneous Leishmaniasis ◽

Zinc Sulphate ◽

Controlled Trial ◽

Antimony Compound ◽

Pentavalent Antimony

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Information and Communication Technology and Cultural Change

Social Psychology ◽

10.1027/1864-9335/a000123 ◽

2012 ◽

Vol 43 (4) ◽

pp. 222-231 ◽

Cited By ~ 14

Author(s):

Nina Hansen ◽

Tom Postmes ◽

Nikita van der Vinne ◽

Wendy van Thiel

Keyword(s):

Cultural Values ◽

Information And Communication Technology ◽

Communication Technology ◽

Cultural Change ◽

Control Group ◽

Self Construal ◽

Information And Communication ◽

The Impact ◽

Ict For Development ◽

Practical Implications

This paper studies whether and how information and communication technology (ICT) changes self-construal and cultural values in a developing country. Ethiopian children were given laptops in the context of an ICT for development scheme. We compared children who used laptops (n = 69) with a control group without laptops (n = 76) and a second control group of children whose laptop had broken down (n = 24). Results confirmed that after 1 year of laptop usage, the children’s self-concept had become more independent and children endorsed individualist values more strongly. Interestingly, the impact of laptop usage on cultural values was mediated by self-construal (moderated mediation). Importantly, modernization did not “crowd out” traditional culture: ICT usage was not associated with a reduction in traditional expressions (interdependent self-construal, collectivist values). Theoretical and practical implications are discussed.

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