Coagulopathy of Immunodermatologic Diseases
Autoimmune Bullous DermatosisThis study will examine the coagulation and fibrinolysis profiles of those with autoimmune skin diseases. Blood samples will be collected from participants with active/poorly controlled immune-mediated skin diseases and mild/latent/well-controlled immune-mediated skin diseases. A one-time sample from 15 general dermatology outpatients who do not have a known or suspected diagnosis of bullous diseases, immune-mediated dermatologic condition, or cutaneous malignancy will also be collected to serve as control. Blood samples from both participant populations will be analyzed for coagulation and inflammatory markers and compared. The results of this study may help inform future studies on the utility of analyzing coagulation and fibrinolysis profiles of patients with autoimmune skin diseases.
Studies of Dermatologic Diseases Biospecimen Acquisition Protocol
Dermatologic ConditionsHealthy Volunteers3 moreBackground: - Skin disease can have many causes. It can have widespread consequences, and in rare cases can lead to death. Researchers want to determine the causes of various types of skin diseases and find a way to treat them. Objectives: - To determine the causes of various skin diseases and find ways to treat them. Eligibility: People ages 2 and older who have: A skin disease or at risk of developing a skin disease OR A family member of persons with a skin disease Healthy volunteers ages 2 and older Design: Participants will be screened under a separate protocol. Participants may take a survey about how their skin condition affects their quality of life. Participants will have a medical history and a physical exam including a detailed skin exam. Pictures will be taken of their skin to document any skin disease. Participants will have specimens collected. This may include: Several teaspoons of blood taken at each visit Stool samples Nail and body fluid (like saliva) samples Cheek swabs. The inside of the cheek will be scraped for about a minute in each direction to collect cells. Collection of skin samples with: A swab (like a Q-tip) Gently scraping skin to remove the outer layers of cells Applying and removing 1-inch pieces of tape Participants may have up to 4 skin biopsies in 12 months, with 4 separate biopsies taken each time. An area of skin will be numbed with an injection. A piece of skin the size of a pencil eraser will be removed using a small instrument. A flat scar usually develops at the biopsy site.
Genetic Architecture of Neutrophil-Mediated Inflammatory Skin Diseases
Neutrophil-mediated Inflammatory DermatosesInflammatory DermatosesThis study is to identify rare, disease-causing mutations of several rare neutrophil dermatoses. To identify associations between NMID and variants in the genome next generation sequencing, mainly whole exome sequencing, will be used. In a second approach the expression level of already known inflammatory proteins in skin samples will be investigated.
Psychogenic and Neurogenic Components in Patients With Psychogenic or Neuropathic Pruritus
PruritusPsychogenic Skin Disease2 moreScientific research on pruritus is in intensive development, with significant advances in understanding its pathophysiology. The causes of pruritus are very huge; they can be classified into different categories; we can find dermatological causes, systemic causes, neuropathic or neurological causes, psychogenic or even idiopathic causes. The diagnosis of psychogenic pruritus is often over stated, when no cause is found; therefore, it is important to see what is really relieving from psychic so as not to over-diagnose and adopt a therapy more in line with the real problem of the patient. In daily practice, it seems to have a tendency to separate psychogenic and neurogenic etiologies in the diagnosis of neuropathic or psychogenic pruritus. In the case of patients with psychogenic pruritus and neuropathic pruritus, no study has attempted to study the respective part of psychogenic and neurogenic components. Consequently, it would therefore be interesting to assess the areas of superposition and distinction of neuropathic and psychogenic pruritus. The aim of this pilot study is to assess the psychogenic and neurogenic components of psychogenic pruritus and neuropathic pruritus in order to improve understanding of the mechanism and therefore their management. The main objective of this study is to highlight the differences and the potential common characteristics between psychogenic and neuropathic pruritus in order to improve the differential diagnosis between these two pathologies. The secondary objective of this study is to describe the psychogenic and neurogenic characteristics of psychogenic and neuropathic pruritus.
The Influence of the Nutritional Status of Women Between 30 and 45 Years of Age on the Condition...
Skin ConditionBody CompositionGoal is to investigate the differences in skin condition and body composition among women with different dietary habits aged 30-45 years. Study will be focused onto sub-groups of female subjects following omnivorous, vegetarian or vegan diet.
A Multi-centric Clinical Trial in China for Skin Diseases Intelligent Diagnosis and Treatment System...
Skin DiseasesArtificial Intelligence2 moreIn response to clinical needs, infrared multi-spectral images are combined with traditional clinical images and other multi-modal data to build a more efficient intelligent auxiliary diagnosis system and intelligent equipment for skin health and diseases, including skin lesions automatically segmentation on skin diseases images, automatically design surgical margin and planning for skin tumor surgery.
Vulvar Disease in Nigeria Observational Study
Vulvar DiseasesVulvar Atrophy1 moreVulvar disease in Nigeria A look at awareness within patients and health practitioners, self-reported and actual prevalence within communities in Nigeria
Addressing Inequity in Dermatology
Dermatologic DiseaseThe objectives of this study are to understand the variation in dermatoses presenting in individuals from different ancestry backgrounds. This will be conducted at multiple NHS hospitals in England. The Investigators specifically aim to 1) assess features of dermatoses in individuals of different ancestry. 2) Understand the language used by patients describing their condition.
Drug Reactions Sampling (COLLECTIONTOXIDERMIES)
Stevens-Johnson SyndromeLyell Syndrome6 moreIntro: Dermatology department of Henri Mondor Hospital (Creteil, France), is a reference center for toxic bullous diseases and severe cutaneous drug reactions (Stevens-Johnson syndrome (SJS), Lyell syndrome (toxic epidermal necrolysis (TEN)), generalized bullous fixed drug reactions, AGEP, DRESS, drug induced immunoglobulin A (IgA) bullous dermatosis, and erythema multiforme). In order to conduct clinical and biological research studies in drug reactions, it is necessary for the investigator's department to implement a collection of clinical data and biological samples. Hypothesis/Objective: To collect clinical data and cutaneous and biological samples for immunological, biological and genetic studies to improve knowledge about pathophysiology of drug reactions. Method: The following samples will be performed in addition to the routine practice samples: one skin punch biopsy (6mm); 43 mL of blood; blister fluid aspiration; oral and nose mucous membrane and skin eSWABs, stool samples. These samples will be stored in a dedicated biological sampling department ("Platform of biological resources"). Conclusion: The implementation of this collection should allow us to conduct pathophysiological studies about drug reactions.
Research in the Development of a New Type of Digital Dermatoscope for Skin Cancer
Skin CancerSkin DiseasesThis is a multicenter prospective observational clinical investigation with a medical device. The purpose of this study is to develop and validate of a new type of digital dermatoscope with automatic decision support algorithms. By means of this study a better insight can be gained of the current performance and workflow in clinical dermatoscopy. This knowledge will be used to further improve the developed technology.