View clinical trials related to Atrophy.
Filter by:With the advent of new treatments for ASI, new phenotypes are emerging. The investigators propose to describe these new phenotypes by prospectively following children with ASI of all types treated with TRS and aged under 16 for 2 years. The investigators also propose to evaluate potential assessment tools to determine whether they are relevant for monitoring this population, either routinely or for future clinical trials. The investigators also aim to collect the total costs associated with ASI in order to propose a first prospective medico-economic study in France.
Platelet-rich plasma (PRP) is an Acne vulgaris is a common chronic inflammatory skin disorder. It is the eighth most prevalent disease worldwide with a prevalence of 9.4%. Acne scar is one of the most persistent complications of acne, causes marked psychological stress to the patient . The process of acne scar formation can be broadly divided into two stages: increased tissue formation and loss or damage of tissue, corresponding to keloid or hypertrophic scar and atrophic scar, respectively. The ultimate severity of acne scars is correlated with acne grade and the delay in treatment of active disease. The atrophic scars include three subtypes: icepick or V-shaped, rolling or M-shaped, and boxcar or U-shaped scars. Among atrophic scars, the ice pick type represents 60%-70%; the boxcar type represents 20%-30%; and the rolling type represents 15%-25% (Salameh and Shumaker, 2022). According to the qualitative scarring grading system, a macular acne scar type also exists, which clinically shows erythematous, hyperpigmented, or hypopigmented flat marks. autologous blood product containing high concentrations of platelets in a small volume of plasma. PRP has been utilized in the treatment of orthopedic, musculoskeletal, and maxillofacial conditions for many years, it has only recently gained popularity in dermatology. PRP contains various growth factors, including platelet-derived growth factor (PDGF), transforming growth factor (TFG), vascular endothelial growth factor (VEGF), and insulin-like growth factor (IGF). These growth factors stimulate tissue remodeling and are associated with enhanced healing through the attraction of macrophages, upregulation of collagen synthesis, and promotion of tissue regeneration. Moreover, platelet-derived growth factor (PDGF) was shown to promote wound healing, angiogenesis, and tissue remodeling.
Spinal muscular atrophy (SMA) is a group of disorders caused by the degeneration of the motor neuron cells of the anterior horn of the spinal cord and, in some subtypes, of the bulbar motor neurons. Almost all cases are genetically determined. Most SMAs are autosomal recessive diseases, caused by homozygous deletions of the survival motor neuron (SMN) gene located on the long arm of chromosome 5. The estimated incidence of recessive childhood and juvenile SMA linked to deletion of the SMN gene is 1 in 6000 to 10000 live births, with a carrier frequency of 1 in 35 in the general population, making it a major genetic cause of infant mortality. Up to 95-97% of all childhood cases are due to homozygous deletions of the survival motor neuron 1 (SMN1) gene, or telomeric SMN, located on chromosome 5q11.2-13.3. The remaining 3-5% of cases are due to small mutations in SMN1 (rather than complete deletions). Until a few years ago, the prognosis of type 1 SMA was poor. In the absence of therapies, the only measures were supportive (ventilation, nutrition) and the prospect, especially in the early forms, was to accompany them towards an early end of life. There are currently three treatment options available: nusinersen, risdiplam, and gene therapy with onasemnogene abeparvovec. The three options were found to be equally effective in reducing the symptoms of the disease, making it possible to reach or safeguard fundamental stages in a child's neuromotor development, starting from the ability to remain seated. At this moment, gene therapy is probably the preferred choice. To date, in Italy, there are approximately 100 patients undergoing gene therapy. To ensure maximum benefit for affected patients, it is essential that the therapy is administered as soon as possible. Literature shows how the administration of gene therapy in pre-symptomatic subjects made it possible to achieve a better neurological outcome compared to symptomatic patients. From this perspective, the inclusion of spinal muscular atrophy in neonatal screening is of fundamental relevance.
Spinal cord stimulation (SCS) has shown remarkable efficacy in restoring motor function in people with spinal cord injury by recruiting afferent input to enhance the responsiveness of spared neural circuits to residual cortical inputs. This pilot will test if SCS can show evidence to improve motor deficits in people with Type 2, 3, or 4 spinal muscular atrophy (SMA). The investigators will enroll up to six subjects with Type 2, 3, or 4 SMA aged 16 or older that show quantifiable motor deficits of the upper body. The investigators will then implant the subjects with percutaneous, linear spinal leads near the cervical spinal cord for a period of up to 29 days. Although these leads are not optimized for motor function but rather for their clinically approved indication of treating pain, the investigators believe they provide a safe technology enabling our team to perform scientific measurement necessary to evaluate potential for effects of SCS in motor paralysis with SMA. After the end of the study, the leads will be explanted.
There are more than 100 million patients who develop scar formation caused by various factors, such as post-inflammatory acne and trauma (1). They often have physical, aesthetic, psychological, and social barriers. Scar tissue is naturally a stage of wound healing. Abnormal wound healing produces a spectrum of scar tissue types such as atrophic, hypertrophic, and keloid scars (2). Atrophic scars are dermal depressions, which are commonly caused by the destruction of collagen following inflammatory process. This permanent disfiguring sequelae correlates with the duration of pathology, severity of lesion, and delay in therapy (3). Treatment of atrophic acne scars remains a therapeutic challenge, yet there is no standard option as the most effective treatment (4). A range of possible options has been investigated including surgical techniques (subcision, non-ablative laser treatment, resurfacing techniques (ablative laser treatment, dermabrasion), and injection or dermal fillers or fat, and a combination of two or more modalities (5). Ultrasound is a unique non-invasive and non-radiating medical imaging tool in the investigation of dermatological diseases by providing detailed anatomic and physiologic data of skin lesions and deeper soft tissue changes. Lesion size in three dimensions-lengths, width, and depth, morphology, the detailed anatomic information provided by sonography is useful to assessment of effect of different types of treatment modality to improve atrophic scar and avoid invasive assessment tools as punch biopsy for histopathological examination (6)
To determine the effects of High-Intensity Interval Training on muscle strength, atrophy, and aerobic capacity in stroke patients.
This is an interventional study to evaluate safety and efficacy of AAV-hSMN1 in spinal muscular atrophy patients.
evaluates the success of prosthetic rehabilitation of thin wiry ridge and implants placed simultaneously in splitted ridge both clinically and radiographically.
DRPLA Natural History and Biomarkers Study (DRPLA NHBS) is a prospective observational study that will lay the foundation for clinical trials in DRPLA. The aims of this project are: - To characterize the natural history of DRPLA in both juvenile- and adult-onset patients and study different modalities of biomarkers in this condition. - To identify genetic factors and biomarkers that could predict disease progression. - To provide a platform to support the design and conduct of clinical trials. This study has three arms: 1. Adult Participants: this arm of the study will require participants to be 16 years old or over to participate. 2. Pediatric Participants: this arm of the study will require participants to be under 16 years old to participate. 3. Remote Participants: patients that cannot or do not wish to travel to one of the study sites can participate in this arm of the study, irrespective of their age. Participants will have an annual visit for three years (baseline visit and two follow-up visits, three visits in total). Subjects who complete the whole protocol will be assessed on two consecutive days to reduce patient burden. This project will allow for a better understanding of DRPLA and its course, and therefore allow for future clinical trials on this condition to be more precisely and effectively conducted.
The overall aim is to utilize multi-omics approach to identify novel etiopathogenesis and early detection biomarkers for stomach cancer precursor lesions. To achieve this aim, first the investigators will use stored serum samples to perform metabolomics profiling among 12,599 twin subjects, among whom 1034 were deemed to have chronic atrophic gastritis based on measured pepsinogen I and II levels. Logistic regression will be used to search for metabolites related to the risk of chronic atrophic gastritis. Second, the investigators will further measure serum proteome by using two quantitatively precise proteomics assays, among the above-mentioned twin subjects. Identified protein biomarkers will be combined with metabolomics biomarkers to create a prediction model for chronic atrophic gastritis. The results will hopefully improve our understanding of the etiological factors and provide promising early detection biomarkers for stomach cancer precursor lesions.