View clinical trials related to Ectodermal Dysplasia.
Filter by:The purpose of this study is to evaluate sweat duct number on the plantar surface of newborn infants using a non-invasive confocal microscopy device.
X-linked hypohidrotic ectodermal dysplasia (XLHED) is a complex genetic disorder characterized by lack of sweat, sebaceous, submucous, Meibomian and mammary glands, sparse hair and eyebrows, and oligodontia. Insufficient function of the respective glands may lead to chronic inflammatory processes in airways and eyes of the affected individuals. The investigators will quantify sweat glands of XLHED patients, assess chronic conjunctivitis and blepharitis in conjunction with quantitative and/or qualitative alterations of lacrimal fluid in these subjects, evaluate lung function and assess chronic inflammatory processes in the airways by NO measurements. The data should provide a basis for genotype-phenotype correlations.
The overall purpose of this study is to learn more about Hypohidrotic Ectodermal Dysplasia (HED) and to help in identifying treatment opportunities. Several evaluations will be conducted in this study: 1) the number of skin sweat glands you have and their ability to produce sweat; 2) your ability to grow hair; 3) the structure of your face compared to faces of people affected by HED; 4) molds of your teeth to see if and how they are different than people affected by HED.
Because of their lack of sweat glands individuals with hypohidrotic ectodermal dysplasia (HED) are at particular risk of life-threatening hyperthermia during exercise in a warm environment. In this study, the effects of physical exercise are investigated in boys and male adolescents with X-chromosomally inherited HED as well as age-matched controls, who undergo standardized exertion on a bicycle ergometer at ambient temperatures of 25°C and 30°C. Body core temperature during and after ergometry, heart rate, performance, and serum lactate as a marker of metabolic stress are measured. Subjects with HED are expected to show an endangering rise of body temperature in connection with physical exercise. To clarify, whether novel cooling devices may reduce the likelihood of overheating, the effects of such devices are evaluated at 30°C.
Hypohidrotic ectodermal dysplasia (HED) is a complex genetic disorder characterized by lack of sweat glands, sparse hair, and missing or malformed teeth. Inability to sweat may result in episodes of severe hyperthermia and cause sudden infant death. To assess sweat gland function in HED patients, the investigators will first quantify gland pores in a defined area of the palm and then stimulate the glands by pilocarpine followed by sweat collection in a special capillary for volume determination. This will be combined with non-invasive skin conductance measurement prior and subsequent to stimulation of the sympathetic nervous system. The data should provide a basis for genotype-phenotype correlation.
To characterize skin properties in male subjects with HED
This study investigates gene abnormalities in Primary Immune Deficiency(PID) with a goal of improving the diagnosis and treatment of patients. The specific disorders include: 1. X linked hyper IgM Syndrome which is caused by an abnormality in the CD40L gene. 2. NEMO associated immune deficiency which is caused by an abnormality in a gene called NEMO. 3. Common variable immunodeficiency (CVID) which has an unknown genetic basis. 4. Other disorders of immunoglobulin production. This study will: 1. Better characterize the clinical features of CD40 L deficiency and NEMO associated immune deficiency and other related primary immune deficiency syndromes. 2. Determine the frequency of CD40 L and Nemo abnormalities. 3. Determine whether particular abnormalities in these genes are associated with more of less severe illness or with specific symptoms. 4. Explore the basic mechanism by which these altered genes cause immune dysfunction. 5. Identify other genes causing low immune globulin levels and related primary immune deficient states.
The amendment to Clinical Protocol 86-D-0015, clinical study of Oral Endosseous Titanium Implants in Edentulous subjects, and patients with Ectodermal Dysplasia is to allow the Investigators to determine: (1) If placement of Endosseous Titanium Implants in pre-adolescent patients (age 7 to 10) will influence the growth and development of the craniomandibular complex. (2) The final position of the implant, the ability to fabricate prosthesis. (3) Body image, diet and perceived ease of chewing selected foods. Selection of patients for participation in the study will be based on the number of congenitally missing teeth associated with Ectodermal Dysplasia. At least 16 permanent teeth must be congenitally missing. A total of 30 patients will be included. A consent to participate in this study will be obtained from each patient: 18 & older - consent signed by patient 13-17 years - consent signed by parent, assent signed by patient 7-10 years - consent by parent, assent signed by child if capable of understanding or note on chart describing procedure used to obtain the child's assent to the study