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Related Concept Videos

Acne Infection01:27

Acne Infection

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Acne is a multifactorial skin condition primarily affecting adolescents and young adults, with a global prevalence estimated to exceed 75% in this demographic. The condition is characterized by the formation of comedones (blackheads and whiteheads), papules, pustules, nodules, and, in severe cases, cysts, particularly in areas rich in sebaceous glands such as the face, neck, chest, and back. The pathogenesis involves increased sebum production, follicular hyperkeratinization, colonization by...
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A sebaceous gland is a type of oil gland found almost all over the skin ( except palms and soles) and helps lubricate and waterproof the skin and hair. Most sebaceous glands are associated with hair follicles. They generate and excrete sebum, a mixture of lipids, onto the skin surface, thereby naturally lubricating the dry and dead layer of keratinized cells of the stratum corneum, keeping it pliable.
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Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
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Sweat glands or sudoriferous glands are one of the important accessory structures of the skin. They are small, coiled tubular structures located in the dermis, the middle layer of the skin. Sweat glands are responsible for producing and secreting sweat, a watery fluid that helps regulate body temperature and excrete waste products.
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Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
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The human skin serves as a complex ecosystem inhabited by a diverse community of microorganisms, including bacteria, fungi, and viruses. This microbiome plays a critical role in maintaining skin health and defending against pathogenic invaders. The composition of microbial communities varies significantly across different regions of the body, influenced primarily by the local levels of moisture and sebum.Regional Variation in Skin MicrobiotaCutibacterium acnes predominantly colonizes sebaceous...
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Author Spotlight: Development and Evaluation of a Compound Acne Rodent Model Using C. acnes and Oleic Acid
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Acne vulgaris.

Sara Moradi Tuchayi1, Evgenia Makrantonaki2,3,4, Ruta Ganceviciene2,5

  • 1Center for Dermatology Research, Department of Dermatology, Wake Forest School of Medicine, 4618 Country Club Road, Winston-Salem, North Carolina 27104, USA.

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Acne vulgaris is a common inflammatory skin condition affecting the pilosebaceous unit. New treatments targeting early acne development promise better outcomes and reduced scarring.

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Area of Science:

  • Dermatology
  • Pathophysiology of skin diseases

Background:

  • Acne vulgaris is a prevalent chronic inflammatory disease of the pilosebaceous unit.
  • It involves complex mechanisms including altered sebum production, hormonal dysregulation, and immune dysfunction.

Purpose of the Study:

  • To review the pathophysiology of acne vulgaris.
  • To highlight challenges in current grading and treatment guidelines.
  • To emphasize the need for novel therapeutic strategies.

Main Methods:

  • Review of existing literature on acne pathophysiology.
  • Analysis of current grading and treatment methodologies.
  • Discussion of emerging therapeutic targets.

Main Results:

  • Current acne grading lacks consensus, hindering clinical trials.
  • Existing treatments often involve complex regimens with poor adherence.
  • Acne frequently leads to scarring and reduced quality of life.

Conclusions:

  • Targeting early acne development processes is crucial for improved patient outcomes.
  • Novel treatments focusing on underlying mechanisms are needed.
  • Addressing modifiable risk factors is key for acne prevention.