Dermatophyte
Dermatophytes are a group of FUNGI that infect KERATINIZED TISSUES such as the SKIN, HAIR, and NAILS, causing superficial FUNGAL INFECTIONS collectively known as TINEA or Dermatophytosis.
Dermatophytes are specialized FILAMENTOUS FUNGI that have the ability to invade and grow within KERATINIZED TISSUES by producing enzymes called KERATINASES, which break down KERATIN found in the EPIDERMIS, HAIR SHAFT, and NAILS. They belong mainly to three genera: TRICHOPHYTON, MICROSPORUM, and EPIDERMOPHYTON. Dermatophyte infections, known as DERMATOPHYTOSIS or TINEA INFECTIONS, are classified based on the affected body site, including TINEA PEDIS, TINEA CORPORIS, TINEA CRURIS, and TINEA CAPITIS. Transmission may occur through contact with infected humans (ANTHROPOPHILIC FUNGI), animals (ZOOPHILIC FUNGI), or soil (GEOPHILIC FUNGI). Diagnosis commonly involves POTASSIUM HYDROXIDE (KOH) TEST, microscopy, and FUNGAL CULTURE, while treatment involves ANTIFUNGAL MEDICATIONS.
• Dermatophytes are fungi that infect the outer parts of the body. • They grow by using keratin, a protein found in skin, hair, and nails. • Dermatophyte infections are called tinea or ringworm infections. • The three main groups of dermatophytes are: - Trichophyton - Microsporum - Epidermophyton • They can spread from: - Infected people. - Animals. - Soil or contaminated objects. • Common dermatophyte infections include: - Tinea pedis: athlete's foot. - Tinea cruris: jock itch. - Tinea corporis: body ringworm. - Tinea capitis: scalp ringworm. • Treatment usually involves antifungal medicines.
dermatophyte