View clinical trials related to Ichthyosis.
Filter by:The investigators' primary objective is to identify common and rare mutations in the filaggrin gene in African American patients with a diagnosis of atopic dermatitis and ichthyosis vulgaris. Atopic dermatitis, or eczema, is a common, chronic, relapsing and remitting problem in many children and affects 10-20% of the pediatric population. Itch is a predominant feature of this disease and is quite disruptive to daily activities of life. In addition to itch, it is characterized by markedly dry skin, small red bumps that may have fluid. Ichthyosis vulgaris is characterized by extremely dry, scaly skin with a fine white scale and increased amounts of lines noted on the palms. Filaggrin is a protein that is essential for the skin to function properly as a barrier and found to be mutated in some European patients with ichthyosis vulgaris and atopic dermatitis. This association has not been looked at in the African American population. Genomic DNA (gDNA) will be purified from buccal swabs using commercially available kits and analyzed.
This study will examine microbes (e.g., bacteria, fungi, viruses) that live on human skin and how microbes contribute to health and disease. It will analyze healthy human skin and how the these microorganisms might change in patients with atopic dermatitis (AD), a skin condition also known as eczema. Healthy volunteers, as well as patients with moderate to severe eczema (AD), between 2 and 40 years of age may be eligible for this study. We also wish to enroll children and adults aged 2-40 who have been diagnosed with inherited immune disorders known as HIES (hyperimmunoglobulin-E syndrome), WAS (Wiskott-Aldrich syndrome), or DOCK8 immunodeficiency because they frequently have skin problems similar to AD. Eligible participants undergo the following tests and procedures: - Medical family and medication history - Skin examination - Blood tests (research blood as well as serum IgE, and complete blood count) - Skin samples to analyze microbes. Samples are obtained by the following methods: swabbing the skin with a cotton swab; scraping (scratching) the skin gently with a blade to remove only the outermost skin layers; and, only in adults, biopsy (surgical removal) of a small skin sample less than 1/4-inch (5 mm) in diameter. - Nose swabs to analyze microbes. - Patients with eczema may have photographs of their skin taken to help monitor the skin rashes. Participants may be contacted periodically for follow-up studies. Patients with atopic dermatitis may have additional skin samples collected to examine changes in the skin bacteria over time and during all of the stages of eczema. In addition, patients who have a flare of their eczema are asked to undergo a skin sample collection as soon as possible.
Lamellar ichthyosis is a congenital disease of the skin with a generalized scaling. The primary activity of liarozole is considered to be the inhibition of the degradation of a substance called retinoic acid, which is the principal endogenous regulator of growth and differentiation of epithelial tissues in mammals. The current study intends to evaluate the efficacy and safety in patients with lamellar ichthyosis.
The ichthyoses are a family of genetic skin diseases characterized by dry, thickened, scaling skin. Dermatologists estimate that there are over twenty varieties of ichthyosis, with a wide range of severity and associated symptoms. This registry is designed to identify people in the United States with the ichthyoses and other related disorders and to collect information about their skin ailment and how it has affected them. The database is available for review by approved research applicants. The registry is confidential and provides investigators a way to share information about studies and trials with potential participants while maintaining participants' privacy. Although the Registry is closed to new enrollment, it is still maintained in order to provide information related to understanding the diagnosis, pathophysiology, and treatment of ichthyoses. Support for studies continues and inquiries from investigators are welcomed.
This study will determine if family members of patients with xeroderma pigmentosum (XP) have various abnormalities, including: skin abnormalities; nervous system abnormalities, such as hearing problems; skin, eye, or internal cancers, or other changes. XP is a rare inherited disease that involves an inability to repair damage to cell DNA (genetic material). It can affect several organ systems, including the skin, eye, nervous system, and bones. Patients have a more than thousand-fold increase in frequency in all major skin cancers. Parents of patients with XP are carriers of the abnormal XP gene. Other family members may also be carriers of the abnormal XP gene. Carriers do not develop the disease themselves; symptoms develop only in children who have inherited the faulty gene from both parents. This study will try to clarify the genetic basis for XP and to understand the increased frequency of cancer in the disease. XP patients who have been evaluated at the NIH Clinical Center and their relatives are eligible for this study. Newly diagnosed XP patients are also eligible. Spouses of relatives will also be included as control subjects. Patients and their family members will undergo some or all of the following procedures: - Parental permission to review the child s relevant medical records and pathology material from treatments or surgery for cancer or other related illnesses - Medical history and physical examination, with particular attention to the skin and possible eye, hearing or neurological examinations - Photographs to document skin and other physical findings - Nuclear medicine scans to evaluate the brain and nervous system - X-rays of the skull or other parts of the body - Nervous system testing with an electroencephalogram (EEG), electroretinogram (ERG), electromyogram (EMG) or nerve conduction velocity measurement - Collection of blood and skin samples for gene studies - Establishment of cell lines from collected blood or tissues to study DNA repair, skin cancer, cancers related to XP, immune defects, and related studies. - Biopsy (surgical removal of a small piece of tissue) of suspicious skin lesions for examination under a microscope - Collection of a cheek cell sample, obtained by twirling a soft brush against the inside of the cheek - Collection of a hair sample for microscopic examination and composition analysis - Surgery to treat skin cancers or other lesions
OBJECTIVES: I. Compare the safety and efficacy of monolaurin cream versus a placebo vehicle cream in suppressing the signs of nonbullous congenital ichthyosiform erythroderma. II. Assess the incidence of posttreatment rebound or recrudescence in patients with congenital ichthyosis. III. Evaluate the long term safety of monolaurin cream with whole body application in these patients.
Four rare genetic diseases, xeroderma pigmentosum (XP), Cockayne syndrome (CS), the XP/CS complex and trichothiodystrophy (TTD) have defective DNA excision repair although only XP has increased cancer susceptibility. We plan to perform careful clinical examination of selected patients with XP, XP/CS, CS, or TTD and follow their clinical course. We will obtain tissue (skin, blood, hair, buccal swabs) for laboratory examination of DNA repair and for genetic analysis. We hope to be able to correlate these laboratory abnormalities with the clinical features to better understand the mechanism of cancer prevention by DNA repair. Patients will be offered counseling and education for cancer control.
The purpose of this study is to identify the genes responsible for certain scaling disorders and other inherited skin diseases and to learn about the medical problems they cause. In some cases, these may include problems affecting organs other than the skin, such as the eyes, teeth and bones. Patients with inherited skin disorders, including Darier's disease (keratosis follicularis), lamellar ichthyosis, epidermolysis bullosa, cystic acne, and others, and their relatives may be eligible for this study. Patients will have a medical history, physical examination with particular emphasis on the skin, and routine blood tests. Additional procedures for patients and unaffected relatives may include: 1. Blood sample collection 2. Dental exam with X-ray of the jaw 3. Eye examination 4. X-rays of the skull, ribs, chest, hands, feet, spine, arms, or legs 5. Bone density scan 6. Photographs of the skin 7. Skin biopsies (removal of a small tissue sample under local anesthetic) 8. Buccal sample (gentle brushing inside the cheek to collect a cell sample) for gene studies Patients who request the results of their gene testing will be provided this information.