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Dermatophyte - Wikipedia, the free encyclopedia Dermatophytes (name based on the Greek for 'skin plants') are a common label for a group of three types of fungus that commonly cause skin disease in animals and humans. Dermatophytes are transmitted by direct contact with infected host (human or animal) or by direct or indirect contact with infected exfoliated skin or hair in clothing, combs, hair brushes, theatre seats, caps, furniture, bed linens, towels, hotel rugs, and locker room floors. Dermatophytes are classified as anthropophilic(humans), zoophilic(animals) or geophilic(soil) according to their normal habitat. en.wikipedia.org /wiki/Dermatophytes   (624 words)

Cause Of Ringworm The dermatophytes are not a particular fungus but rather a common label for a group of genera of fungi that commonly cause skin disease of people and animals. Dermatophytes are fungi that can cause infections of the skin, hair, and nails due to their ability to utilize keratin. Dermatophytes are classified as anthropophilic, zoophilic or geophilic according to their normal habitat. www.ringworm.bz /cause-of-ringworm.htm   (386 words)

Koh Test | AHealthyMe.com Dermatophytes are a type of fungus that invade the top layer of the skin, hair, or nails, and produce an infection commonly known as ringworm, technically known as tinea. Dermatophytes are easily recognized under the microscope by their long branch-like structures. Dermatophytes or yeast seen on a KOH test indicate the person has a fungal infection. www.ahealthyme.com /topic/topic100587044   (631 words)

Dermatophyte   (Site not responding. Last check: 2007-11-07) Dermatophytes are fungal organisms which infect keratin of humans and animals. Dermatophyte infections of the penis and scrotum are relatively rare compared with those involving the groin. Dermatophyte infections of the hair are termed endothrix if it invades the hair shaft and exothrix if it remains on the surface. www.thedoctorsdoctor.com /diseases/dermatophyte.htm   (2169 words)

Allergy and Dermatophytes - Page One (A) Dermatophyte organisms associated with onychomycosis invade the nail plate as well as the surface of the nail itself, most frequently resulting in yellow/brown discoloration, ridging, and thickening (hyperkeratosis). A feature that all dermatophyte fungi have in common is their ability to utilize keratin as a nutrient source. Considering the high prevalence of dermatophytosis in the general population, dermatophyte fungi appear to occupy a niche which is optimal to their survival and growth in the host-pathogen relationship. journals.aol.com /patoco2/FungusInfections/entries/2006/04/29/.../1172   (1643 words)

Tinea pedis is a fungal infection of the feet caused by superficial dermatophytes (Jahss, 1991)   (Site not responding. Last check: 2007-11-07) Tinea pedis is a fungal infection of the feet caused by superficial dermatophytes (Jahss, 1991). The dermatophytes invade the keratinised tissue causing the infection that extends to the subcutaneous areas of the body. When the agar has grown the dermatophytes are differentiated due to their differences in candida (Habif, 1990). www.podiatry.curtin.edu.au /encyclopedia/tinea/tinea.html   (1342 words)

Ringworm (Dermatophytosis) of Cats Microsporum canis is a zoophilic dermatophyte because it is typically associated with cats and dogs. The diagnosis of dermatophyte infection is based upon examination of the cats looking for clinical symptoms, direct examination of hair and skin using a microscope, and if necessary isolation of the dermatophyte on a culture medium. The identification to genus and species of the particular dermatophyte causing disease is done by isolating the fungus on culture media and examining the fungal growth with a microscope. www.doctorfungus.org /mycoses/veteri/ringworm_cats.htm   (527 words)

Lamisil - Fungal Disorders The most important skin pathogens are dermatophytes, which do not induce systemic fungal infection; this fungus will become pathogenic for humans if the skin is damaged. The fungus produces metabolic byproducts that are toxic and allergenic to the host, producing the classic signs of inflammation, such as, redness (from dilation of blood vessels) and swelling (from excess fluid in the area).For example, the dermatophyte induces allergic reactions such as vesicular lesions of palms and lateral faces of fingers. Dermatophytes, often referred to as ringworm fungi, are the most common superficial fungal parasites of the skin and belong to three genera of fungi: www.feetfacts.com /fungal_disorders/main.htm   (3258 words)

In Vitro Activities of 10 Antifungal Drugs against 508 Dermatophyte Strains -- Fernández-Torres et al. 45 (9): ... Dermatophytes are a specialized group of fungi which affect keratinous tissue of humans and of other vertebrates, causing Antifungal susceptibility testing of dermatophytes: establishing a medium for inducing conidial growth and evaluation of susceptibility of clinical isolates. In vitro evaluation of voriconazole against clinical isolates of yeasts, moulds and dermatophytes in comparison with itraconazole, ketoconazole, amphotericin B and griseofulvin. aac.asm.org /cgi/content/full/45/9/2524   (2248 words)

Phylogenetic Classification and Species Identification of Dermatophyte Strains Based on DNA Sequences of Nuclear ... of dermatophytes in the cluster of Trichophyton spp. The 12 standard strains and 11 clinical isolates of dermatophytes used in this study are described in Tables 1 and 2. Okeke, C. N., Tsuboi, R., Kawai, M., Hiruma, M., Ogawa, H. Isolation of an Intron-Containing Partial Sequence of the Gene Encoding Dermatophyte Actin (ACT) and Detection of a Fragment of the Transcript by Reverse Transcription-Nested PCR as a Means of Assessing the Viability of Dermatophytes in Skin Scales. jcm.asm.org /cgi/content/full/37/4/920   (2190 words)

Fungal Nail Infections -- Cause Dermatophytes are a type of fungus that can grow on the skin, hair, and nails. The most common dermatophyte, Trichophyton rubrum, causes most cases of athlete's foot infection, which in turn can infect the toenails. Dermatophytes can be transmitted by direct contact or by contact with objects such as clothing, shoes, nail clippers, nail files, shower and locker room floors, and carpet. www.webmd.com /hw/health_guide_atoz/hw268118.asp?printing=true   (360 words)

eMedicine - Tinea : Article Excerpt by: Jerome FX Naradzay, MD, FACEP   (Site not responding. Last check: 2007-11-07) Background: The dermatophytes are a group of fungi (ringworm) that invade the dead keratin of skin, hair, and nails. Dermatophytosis (tinea) is a fungal infection caused by dermatophytes. Pathophysiology: Dermatophytes have the ability to invade keratinized tissue (eg, hair, nails, any area of the skin) but are restricted to the dead cornified layer of the epidermis. www.emedicine.com /emerg/byname/tinea.htm   (533 words)

European Society of Clinical Microbiology and Infectious Diseases The purpose of this study was to evaluate the suitability of SGC2 for the detection of dermatophytes in clinical specimens and with clinical isolates. All dermatophytes exhibited good growth on SGC2 and growth rates typical for the particular species, as well as typical colony morphology, pigment formation and microscopic characteristics. Thus, the SGC2 medium is an universal mycological medium that enables detection of dermatophytes in addition to yeasts and moulds. www.blackwellpublishing.com /eccmid16/abstract.asp?id=49666   (363 words)

[No title]   (Site not responding. Last check: 2007-11-07) In school soil samples Dermatophytes and related fungi were represented by eight species and comprised of 32.8% of all the fungal isolates recovered. Dermatophytes constituted 10.9% of the colonies; Chrysosporium species were comprised of 21.9% and the other fungi comprised of 67.2% of the colonies. These results point out that the infection among school children is a function of the number of dermatophytic species as well as the intensity of their colonization. www2.unescobkk.org /eubios/india/bii79.htm   (1911 words)

Production of a growth dependent metabolite active against dermatophytes by Streptomyces rochei AK 39 Indian Journal of ... The actinomycetes were isolated on starch casein medium and screened for their antifungal activity against yeasts and molds including dermatophytes. The MIC and MFC values of the culture supernatant from the isolate against the dermatophytes were within the range 1.25 to 5 and 1.25 to 10 AU/ml respectively. Dermatophytes are a group of fungi responsible for causing dermatophytoses in humans and there is evidence that the dermatophytes have acquired resistance to certain antimycotic drugs2. www.findarticles.com /p/articles/mi_qa3867/is_200503/ai_n13633073   (839 words)

DERMATOPHYTES AND OTHER FUNGI ASSOCIATED Diagnosis was confirmed by microscopic examination in 1180 cases (53.1%), and the causal agents were isolated in 1160 cases (52.2%). From the total isolates identified by culture growth, dermatophytes species were the most common, accounting for 58.8% (682 cases) of all fungal infections. This finding concurred with other studies which found that cutaneous candidiosis may be as common as dermatophytes, particularly in females. www.kfshrc.edu.sa /annals/213_214/01-002.htm   (1766 words)

Dermatophytes   (Site not responding. Last check: 2007-11-07) Dermatophytes are a unique group of fungi that can invade the Dermatophytes are the most common fungi identified in the clinical laboratory. The structure of the growing organism may be observed microscopically at 100x, 200x, or 400x magnification through the clear InTray lid. www.biomed1.com /DM.htm   (181 words)

Foot Fungus, Families Spread - Skin diseases, conditions and procedures on MedicineNet.com Using high-tech molecular biology techniques, researchers were able to trace the spread of the same tiny organisms, called dermatophytes, responsible for the common foot infections within families. That common foot infection causes a rash on the skin of the foot and affects 10% of the population. Using a combination of microbiology and DNA matching techniques, researchers were able to confirm that identical infection-causing dermatophytes were present in 42% of affected family members. www.medicinenet.com /script/main/art.asp?articlekey=64458   (576 words)

European Society of Clinical Microbiology and Infectious Diseases The routine identification of dermatophytes is a time-consuming process, depending on morphology. The dermatophytes are however consisting of a variety of species of which some are highly related and ITS2-length is identical. Partially digested ITS2 fragment lengths analysis enables the identification of dermatophytes up to species level (for most of the species) or to a cluster of 2–4 species (which are sometimes highly related by other methods as well). www.blackwellpublishing.com /eccmid15/abstract.asp?id=38011   (362 words)

Rapid Discrimination among Dermatophytes, Scytalidium spp., and Other Fungi with a PCR-Restriction Fragment Length ... Dermatophytes, which belong to the genera Trichophyton, Microsporum, and Epidermophyton, are extremely widespread fungi that or dermatophytes to confirm the specificity of the reaction. The nucleotide structural homology was 95.9% between the dermatophytes jcm.asm.org /cgi/content/full/39/2/685   (2885 words)

Foot Fungus Spreads Among Families The infection is known as tinea pedis, and is caused by a group of tiny organisms called dermatophytes -- the same fungus responsible for athlete's foot. Researchers say matching the DNA of the same dermatophytes among members of the same household clearly indicates each family member had the identical strain of dermatophyte, which confirms that the infection was transmitted from one family member to the other, either directly or indirectly. Questionnaires completed by the participants showed the likelihood of the spread of the foot infection within a household was tied to the strain of fungus and whether anyone in the family had nail discoloration or scaling of the skin on the side of the foot and/or a past history of toenail fungus and athlete's foot. www.webmd.com /content/article/128/116879?src=rss_investeap   (548 words)

Antifungal Susceptibility Testing of Dermatophytes   (Site not responding. Last check: 2007-11-07) To select which agar medium best supported conidial growth, representative isolates of dermatophytes were grown on different agars. Next, we used the oatmeal cereal agar for conidial formation along with the optimal conditions for dermatophyte susceptibility testing identified earlier and determined the antifungal susceptibility of 217 dermatophytes against fluconazole, griseofulvin, itraconazole and terbinafine. This study is the first step in the identification of optimal conditions that could be used in the standardization of the antifungal susceptibility testing method for dermatophytes. dermatology.cdlib.org /DOJvol7num1/nails/abstracts/ghannoum.html   (228 words)

Jock Itch Jock itch, like other tinea infections, is caused by several types of mold-like fungi called dermatophytes (pronounced: dur-mah-tuh-fites). All of us have microscopic fungi and bacteria living on our bodies, and dermatophytes are among them. Dermatophytes live on the dead tissues of your skin, hair, and nails and thrive in warm, moist areas like the insides of the thighs. kidshealth.org /teen/infections/skin_rashes/jock_itch.html   (624 words)

Examination for Dermatophytes Dermatophyte fungi invade the epidermal stratum corneum and the hair. Visualisation of arthrospores in or on the hair is diagnostic of dermatophytosis and is a potentially useful, rapid test. However, it can be difficult to see spores and hyphae by routine light microscopy and the diagnosis must not be discounted if fungi are not seen. www.rvc.ac.uk /review/Dermatology/Tests/Microscopy5.htm   (90 words)

Electronic Textbook of Dermatology, Common Dermatologic Diseases The most common pattern of hand involvement is for a single hand to be involved while both feet are involved in a moccasin distribution scaling typical of T. Micronizing the powdered tablet or capsule and administering this along with a fatty meal greatly assist in absorption. The side effects of occasional headache and occasional depression and nausea can generally be dealt with, but local treatment is still the crux of the management of most dermatophytes, particularly athlete's foot. www.telemedicine.org /common.htm   (1458 words)

Evaluation of New Medium for Identification of Dermatophytes and Primary Dimorphic Pathogens -- Gromadzki et al. 41 ... of dermatophytes from soldiers with ringworm infections (1, A new medium for the presumptive identification of dermatophytes. Isolation and recognition of dermatophytes on a new medium (DTM). jcm.asm.org /cgi/content/full/41/1/467   (1264 words)

BD - Diagnostic Systems: Sabouraud Dextrose Agar Deeps (Pour Tube), 20 mL Sabouraud Dextrose Agar is a general purpose medium devised by Sabouraud for the cultivation of dermatophytes. The low pH of approximately 5.6 is favorable for the growth of fungi, especially dermatophytes, and slightly inhibitory to contaminating bacteria in clinical specimens. The addition of chloramphenicol is a modification designed to increase bacterial inhibition and enable the isolation from contaminated specimens of opportunistic fungi that cause clinical infections resembling dermatophytosis but are sensitive to the cycloheximide included in some selective fungal media. www.bd.com /ds/productCenter/297812.asp   (557 words)

IngentaConnect In vitro and in vivo Effects of Lufenuron on Dermatophytes Isolat...   (Site not responding. Last check: 2007-11-07) Dermatophyte cultures isolated from clinical cases were exposed to lufenuron by three different methods: direct application and application of whole blood or subcutaneous tissue samples obtained from a lufenuron-treated healthy dog. No inhibition of dermatophyte growth was observed in any of the samples after 1 week of incubation. Results indicated that six of seven skin lesions that were diagnosed as being caused by dermatophytes did not respond to lufenuron whereas six of seven skin lesions that were not caused by dermatophytes improved. www.ingentaconnect.com /content/bsc/jvb/2006/00000053/00000003/art00004   (311 words)

Multiplication of an ancestral gene encoding secreted fungalysin preceded species differentiation in the dermatophytes ... Dermatophytes are human and animal pathogenic fungi which cause The proteins of 20 ml of dermatophyte culture supernatant were precipitated using trichloroacetic acid and purified using PlusOne SDS-PAGE Clean-Up Kit (Amersham). Survey of dermatophyte infections in the Lausanne area (Switzerland). mic.sgmjournals.org /cgi/content/full/150/2/301   (3604 words)

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