Studies on Pityriasis Versicolor in Egypt

El-Hefnawi, H; El‐Gothamy, Zzenab; Refai, M.

doi:10.1111/j.1439-0507.1971.tb02936.x

Cited by 12 publications

(5 citation statements)

References 14 publications

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“…Mbuagbaw et al46 found a female predominance, while no differences were found in other studies 19,27. A male preponderance was also reported for dermatophytosis,19,47,48 pityriasis versicolor,31,49,50 and nevi 33,41,51,52. However, two studies were found that reported a higher frequency of pityriasis versicolor in females 10,53…”

Section: Discussionmentioning

confidence: 90%

Dermatologic conditions in teenage adolescents in Nigeria

Henshaw¹,

Olasode²,

Ogedegbe³

et al. 2014

AHMT

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BackgroundSkin disorders are common in adolescents, and the impact on quality of life can be enormous, particularly when viewed against the backdrop of the visibility of skin diseases and the psychologically vulnerable period of adolescence. However, few studies have documented the magnitude of skin disorders in this subset of individuals. We therefore estimated the point prevalence and pattern of dermatologic conditions in adolescents attending various secondary schools in Calabar, Southern Nigeria.MethodsUsing a structured questionnaire, relevant sociodemographic information was obtained from 1,447 teenage adolescents from eight secondary schools. Thereafter, a whole body examination was conducted to determine the presence and types of skin disorders seen.ResultsSkin diseases were seen in 929 students. The point prevalence was higher in males (72.1%) than in females (58.3%). Private schools had a higher prevalence than public schools. The six most common dermatoses were acne vulgaris, pityriasis versicolor, nevi, tinea, miliaria, and keloid/hypertrophic scars, and accounted for over 80% of the dermatoses seen.ConclusionThe point prevalence of dermatoses in senior secondary school adolescents was 64.2%. Although a large number of skin disorders were observed, only a handful accounted for a significant proportion of the diseases seen. This increases the ease of training community health workers in the recognition and treatment of common skin diseases. Age, race, and climatic factors are important determinants of skin diseases in adolescents in Nigeria.

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Section: Discussionmentioning

confidence: 90%

Dermatologic conditions in teenage adolescents in Nigeria

Henshaw¹,

Olasode²,

Ogedegbe³

et al. 2014

AHMT

View full text Add to dashboard Cite

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“…Egyptian sugar cane molasses contain about 44% as total sugar (glucose, sucrose, and fructose), 0.46% as total nitrogen in addition to detectable amounts of some vitamins such as riboflavin and thiamin [46, 47]. Lai et al [48] reported that the main chemical characteristics of rice husk contain: carbon (45.3%), hydrogen (5.5%), nitrogen (0.67%), sulfur (0.29%), and chlorine (0.29) in addition to detectable amounts of potassium (1630 ppm), calcium (94 ppm), iron (202 ppm), sodium (207 ppm), zinc (24 ppm), magnesium (699), phosphorus (94 ppm), and other.…”

Section: Resultsmentioning

confidence: 99%

Kojic Acid Production from Agro-Industrial By-Products Using Fungi

El-Kady

Zohri

Hamed

2014

Biotechnology Research International

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A total of 278 different isolates of filamentous fungi were screened using synthetic medium for respective ability to produce kojic acid. Nineteen, six, and five isolates proved to be low, moderate, and high kojic acid producers, respectively. Levels of kojic acid produced were generally increased when shaking cultivation was used rather than those obtained using static cultivation. A trial for the utilization of 15 agro-industrial wastes or by-products for kojic acid production by the five selected higher kojic acid producer isolates was made. The best by-product medium recorded was molasses for kojic acid. A. flavus numbers 7 and 24 were able to grow and produce kojic acid on only 12 out of 15 wastes or by-products media. The best medium used for kojic acid production by A. flavus number 7 was rice fragments followed by molasses, while the best medium used for kojic acid production by A. flavus number 24 was the molasses followed by orange, pea, and rice fragments. An attempt for production of kojic acid using a 1.5 L laboratory fermentor has been made. Aspergillus flavus number 7 was used and grown on molasses medium; maximum level (53.5 g/L) of kojic acid was obtained after eight days of incubation.

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“…reported highest prevalence in the third and fourth decade of life. [ 22 ] In the study by Akapata et al . it was found that majority of cases occurred during adolescence.…”

Section: Discussionmentioning

confidence: 99%

Study of the distribution of malassezia species in patients with pityriasis versicolor in Kolar Region, Karnataka

2015

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Context:Pityriasis versicolor is a superficial, chronically recurring fungal infection caused by Malassezia species. Recently it has been revised taxanomically into 14 species, in that only 7 species have been well studied in relation to pityriasis versicolor.Aims:To identify Malassezia species isolated from patients with pityriasis versicolor and to find out any correlation between the species with clinical presentation of lesions.Settings and Design:Prospective study comprising of 100 clinically diagnosed cases of pityriasis versicolor attending Dermatology Outpatient Department over a period of 1 year.Materials and Methods:The clinical specimens were collected under aseptic precautions and subjected to culture on Sabouraud's Dextrose Agar overlaid with olive oil and modified Dixon agar. The isolates were identified by biochemical tests.Statistical Analysis Used:Statistical analysis was done using proportion, mean and chi-square test.Results:Of the 100 cases, 73% were males, 26% were females and predominant age group was 21-30 years. Out of 100 samples, 70 yielded growth. The most common isolate was M. sympodialis (50%), followed by M. furfur (32.86%), M. globosa (14.28%) and M. slooffiae (2.86%). Among 100 cases, 74% had hypopigmented and 26% had hyperpigmented lesions. M. sympodialis and M. furur were predominantly isolated from hypopigmented lesions and M. globosa and M. slooffiae were found to be more common in hyperpigmented lesions.Conclusions:M. sympodialis was the most common isolate, followed by M. furfur, M. globosa and M. slooffiae. There was no significant difference in distribution of different species in patients with hypo or hyper pigmented lesions

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Studies on Pityriasis Versicolor in Egypt

Cited by 12 publications

References 14 publications

Dermatologic conditions in teenage adolescents in Nigeria

Dermatologic conditions in teenage adolescents in Nigeria

Kojic Acid Production from Agro-Industrial By-Products Using Fungi

Study of the distribution of malassezia species in patients with pityriasis versicolor in Kolar Region, Karnataka

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