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Related Concept Videos

Skin Diseases and Disorders01:23

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...
Staphylococcal Skin Infections01:29

Staphylococcal Skin Infections

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...
Acne Infection01:27

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...
Skin Cancer01:30

Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Diabetic Foot Ulcer01:31

Diabetic Foot Ulcer

Definition A diabetic foot ulcer (DFU) is a chronic, non-healing wound that develops in individuals with diabetes. It typically occurs on pressure-bearing areas such as the heel, metatarsal heads, or hallux, and carries a high risk of infection and amputation.Pathophysiology • The development of DFUs can be explained by four interconnected mechanisms: neuropathy, ischemia, infection, and impaired wound healing. • Neuropathy is the most common factor. Sensory neuropathy reduces pain perception,...
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Inflammatory Bowel Disease III: Crohn's Disease

Crohn’s disease is a chronic, relapsing form of inflammatory bowel disease characterized by segmental, transmural inflammation that can affect any part of the gastrointestinal tract. Its pathogenesis arises from a combination of genetic susceptibility, environmental exposures, epithelial barrier dysfunction, and immune dysregulation. Together, these factors lead to an exaggerated immune response against components of the gut microbiome.Genetic and Environmental InfluencesMultiple genetic...

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Related Experiment Videos

Pyoderma gangrenosum--rebel without a cure?

Sharon E Jacob1, Robyn S Weisman, Francisco A Kerdel

  • 1Department of Dermatology and Cutaneous Surgery, University of Miami School of Medicine, and Florida Academic Dermatology Center, Miami, Florida, USA.

International Journal of Dermatology
|January 24, 2008
PubMed
Summary
This summary is machine-generated.

Adalimumab offers a promising treatment for pyoderma gangrenosum (PG), a rare skin condition. This study suggests it is a viable alternative to infliximab for managing PG symptoms effectively.

Related Experiment Videos

Area of Science:

  • Dermatology
  • Immunology

Background:

  • Pyoderma gangrenosum (PG) is a rare, ulcerative skin condition often diagnosed by exclusion.
  • Its pathogenesis may involve aberrant T-cell and neutrophil responses, linked to inflammatory bowel disease, rheumatoid arthritis, and malignancies.
  • Current treatments for PG lack universal efficacy.

Purpose of the Study:

  • To evaluate adalimumab as a treatment for pyoderma gangrenosum (PG).

Main Methods:

  • Three cases of PG were treated with adalimumab.
  • Prior treatments included steroids, thalidomide, cyclosporine, and mycophenolate mofetil.

Main Results:

  • Two patients with prior infliximab response achieved success with weekly adalimumab (40 mg).
  • One patient initially responded but later showed no wound bed improvement at a higher dose (80 mg/week).
  • This patient had no prior infliximab treatment.

Conclusions:

  • Adalimumab is a valuable treatment option for pyoderma gangrenosum (PG).
  • Its efficacy appears comparable to infliximab for managing PG.