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Acne Infection

Acne Infection

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...

The Skin Microbiota

The Skin Microbiota

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...

Accessory Structures of the Skin: Sebaceous Glands

Accessory Structures of the Skin: Sebaceous Glands

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.
These glands that produce the oils on the skin and hair are holocrine glands. The mature...

Changes in Skin Color: Clinical Perspectives

Changes in Skin Color: Clinical Perspectives

The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...

Skin Diseases and Disorders

Skin Diseases and Disorders

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.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...

Acute Pancreatitis II: Pathophysiology

Acute Pancreatitis II: Pathophysiology

The pathophysiology of acute pancreatitis centers on injury to pancreatic acinar cells, which initiates a cascade of harmful intracellular events.This injury leads to premature activation of trypsinogen to trypsin in the pancreas. Trypsin then activates other digestive enzymes, such as chymotrypsin, elastase, and phospholipase A2, which begin breaking down pancreatic tissue. The resulting autodigestion causes local inflammation, tissue swelling, hemorrhage, and fat necrosis.Injured acinar cells...

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Related Experiment Video

Updated: Jun 6, 2026

A Rat Model of Compound Acne

A Rat Model of Compound Acne

Published on: November 1, 2024

[Pathophysiological advances in acne].

¹Unité Fonctionnelle de Dermatologie, Hôpital Européen Georges Pompidou, 20 Rue Leblanc, 75908 Paris Cedex 15, France. nicole.auffret@egp.aphp.fr

Annales De Dermatologie Et De Venereologie

|November 25, 2010

Summary

This summary is machine-generated.

Acne is a chronic skin condition influenced by various factors. Research indicates inflammation and Propionibacterium acnes are key players in its development and persistence.

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Enhancement of Facial Rejuvenation Through a Combination of 1565 nm Non-Ablative Fractional Laser with 30% Supramolecular Salicylic Acid

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Area of Science:

Dermatology
Microbiology
Immunology

Context:

Acne vulgaris is a common, multifactorial skin disease.
Inflammation is increasingly recognized as a crucial early component of acne pathogenesis.
Propionibacterium acnes (P. acnes) is a key bacterium implicated in acne development.

Purpose:

To elucidate the roles of inflammation and P. acnes in acne.
To understand the mechanisms by which P. acnes contributes to acne.
To highlight recent advances in acne research.

Summary:

Acne is a chronic skin disorder with complex etiology.
Inflammation initiates the acne process.
P. acnes plays a central role in starting, sustaining, and worsening acne lesions.

Impact:

Provides a concise overview of current understanding of acne pathogenesis.
Highlights the significance of P. acnes and inflammation in acne.
Informs future research directions for acne treatment and prevention.