NEET BIOLOGY

Detailed explanation-1: -Propionibacterium acnes is a gram-positive human skin commensal that prefers anaerobic growth conditions and is involved in the pathogenesis of acne (Kirschbaum and Kligman, 1963). Acne is one of the most common skin diseases, affecting more than 45 million individuals in the United States.

Detailed explanation-2: -The anaerobic bacterium Propionibacterium acnes is believed to play an important role in the pathophysiology of the common skin disease acne vulgaris.

Detailed explanation-3: -Antibiotics. For moderate to severe acne, you may need oral antibiotics to reduce bacteria. Usually the first choice for treating acne is a tetracycline (minocycline, doxycycline) or a macrolide (erythromycin, azithromycin).

Detailed explanation-4: -A blackhead may look like dirt stuck in pores. But actually the pore is congested with bacteria and oil, which turns brown when it’s exposed to the air. Pimples are raised red spots with a white center that develop when blocked hair follicles become inflamed or infected with bacteria.

Detailed explanation-5: -Bacterial acne rarely does. Clusters. Fungal acne often appears in clusters of small whiteheads. Bacterial acne is less clustered and more sparse.