Ichthyosis vulgaris (or ichthyosis) is a group of hereditary or acquired diseases characterized by a disruption of the normal function of skin keratinization. The main manifestation of this disease is hyperkeratosis, which leads to an increase in the thickness of the stratum corneum of the skin and the formation of scaly spots. According to clinical manifestations, ichthyosis can be different: from mild dryness and flaking to more severe forms with a pronounced inflammatory reaction, itching and even infectious complications. The disease can manifest itself as an independent pathology or as part of syndromes, which makes it diverse in its clinical picture. Ichthyosis vulgaris is of particular importance in the field of dermatovenereology and genetics, since it requires a multidisciplinary approach to diagnosis and treatment.
History of the disease and interesting historical facts
Ichthyosis gets its name from the Greek word “ichthyos,” meaning “fish,” reflecting the characteristic appearance of the disease—a scaly texture of the skin that resembles fish scales. The first mentions of the disease can be found in the writings of ancient Greek physicians such as Hippocrates, who described symptoms similar to ichthyosis. In the 19th century, researchers began to classify the different forms of ichthyosis; the work of scientists such as N. K. Mesin and F. A. Karger contributed significantly to the understanding of the pathogenesis of the disease. In the 1920s, some of the genetic mechanisms associated with ichthyosis were discovered, opening up new horizons for medical research and care of patients with the disease.
Epidemiology
Epidemiological data show that ichthyosis vulgaris occurs with varying frequency depending on the population. It can manifest itself as a single case or as familial cases. According to statistics, the prevalence of the disease among the male population is 60% of the total number of patients. On average, ichthyosis affects 1 in 250-300 people, which makes it relatively rare. However, analysis of genetic studies shows that many cases may remain undiagnosed or misinterpreted, especially in mild forms of the disease.
Genetic predisposition to this disease
Ichthyosis vulgaris is in most cases hereditary, transmitted in an autosomal dominant manner. The main genes involved include:
- KRT1 and KRT10 are responsible for the production of keratin; mutations in these genes can lead to increased hyperkeratosis.
- FLG (filaggrin) - associated with maintaining the integrity of the stratum corneum of the skin.
- COL7A1 - abnormalities in this gene can lead to damage to the dermis and deterioration of skin function.
The most common mutations are in genes involved in keratinization and the structural integrity of the epidermis. Genetic testing may be useful to confirm the diagnosis in complex cases.
Risk factors for the development of this disease
There are several known risk factors associated with the development of ichthyosis vulgaris:
- Heredity and family history of the disease.
- The presence of concomitant diseases such as eczema or psoriasis.
- Environmental influences: dermatitis, allergies to personal hygiene products.
- Genetic syndromes in which ichthyosis is one of the manifestations.
- Living conditions: climatic factors, sun exposure, air humidity.
Social status and genetic factors may also influence the incidence of this disease.
Diagnosis of this disease
Diagnosis of common ichthyosis includes several stages:
- Main symptoms: characteristic peeling of the skin, itching, redness, thickening in the areas of the elbows, knees, and scalp.
- Laboratory tests: performing a skin biopsy to confirm the diagnosis and identify mutations.
- Radiological examinations: are not used to diagnose ichthyosis, but can be used to assess the condition of the joints in generalized forms.
- Other types of diagnostics: genetic testing to confirm the hereditary nature of the disease.
- Differential diagnosis: exclusion of other dermatological diseases such as psoriasis, eczema, dermatitis.
Complications may arise in cases of mild forms of the disease, which require a more in-depth analysis.
Treatment
Treatment of common ichthyosis is complex and depends on the severity of the disease. It includes the following methods:
- General treatment: dietary changes, use of moisturizers.
- Pharmacological treatment: use of keratolytic agents such as salicylic and benzoic acids, as well as topical steroids to reduce inflammation.
- Surgical treatment: may be used in severe cases where there is a risk of infection or significant skin damage.
- Other types of treatment: phototherapy, use of skin regeneration agents.
In addition, it is important to maintain hygiene and avoid harsh skin products.
List of medications used to treat this disease
The most common medications used to treat ichthyosis include:
- Moisturizing creams and ointments based on urea.
- Keratolytics (salicylic acid, sodium lactate).
- Professional exfoliating products (eg, doxycycline).
- Glucocorticosteroids (prednisolone) to control inflammation.
- Retinoid-based medications (eg, isotretinoin) for more severe cases.
The right combination of drugs can significantly improve the quality of life of patients.
Disease monitoring
Monitoring of ichthyosis vulgaris includes regular examinations by a dermatologist to assess the skin condition and control the need for treatment adjustments. The main control stages are:
- Evaluation of the effectiveness of the treatments used: will it be necessary to replace or add drugs.
- Screening for complications such as secondary skin infection.
- Prognosis: With proper care, most patients experience a reduction in symptoms and normalization of the skin condition.
- Complications: risk of developing infections, increased stress and decreased quality of life due to the appearance of the skin.
Seeking medical attention promptly can prevent most complications.
Age-related features of the disease
Ichthyosis vulgaris can manifest itself at different age periods, but its severe forms are more often detected in childhood.
- In newborns: sometimes there is an acquired form that may go away with age.
- In children: Symptoms may begin as mild flaking, but a more severe form may develop at a younger age.
- In adults: manifestations may be less pronounced, but exacerbation may occur under unfavorable conditions.
- In the elderly: the disease may progress due to changes in metabolic processes in the body.
Each age group requires its own approach to treatment and prevention.
Questions and Answers
- How is ichthyosis vulgaris transmitted? — Transmission occurs in an autosomal dominant manner, which means that the disease can manifest itself even when inheriting one mutated copy of the gene.
- What symptoms should alert you and call a doctor? — Pay attention to persistent flaking, itching, and redness of the skin, especially if they do not go away with regular moisturizers.
- Are there any effective treatments? — Yes, there are various treatments including keratolytics, topical steroids and retinoids that can help control symptoms and improve skin condition.
- Is the etiology of ichthyosis vulgaris known? — Yes, the main factors are genetic mutations that affect the processes of skin keratinization.
- How long does treatment for ichthyosis vulgaris last? — The treatment is chronic and requires constant monitoring to maintain the skin in a stable condition.
Advice from Dr. Oleg Korzhikov
Patients with common ichthyosis should follow a few simple but important recommendations. First of all, this is regular skin moisturizing, which will help reduce the severity of symptoms. It is also important to refuse to use aggressive detergents and avoid prolonged exposure to the sun. Do not forget that self-medication can lead to a deterioration in the condition, so I always recommend consulting a specialist. Including foods rich in omega-3 fatty acids in the diet can have a positive effect on the condition of the skin.
