Loading clinical trials...
Loading clinical trials...
Discover 23,284 clinical trials near Maryland. Find research studies in your area.
Showing 16641-16660 of 23,284 trials
NCT00546091
This study will explore the uses of three noninvasive imaging techniques-thermography, laser Doppler imaging, and multispectral imaging-to test the blood flow of healthy volunteers. By comparing these three techniques, researchers will be able to train these imaging systems to better evaluate skin types and blood flow. The study will also test computer programs that have been developed to correct for the effects of curvature and body hair on the images. Healthy volunteers must be older than 18 years of age and may not have had a history of malignant tumors, skin disease, or vascular disease. Participants will undergo the following procedures on an outpatient basis: Three different types of images taken of the participant s forearm * Thermography infrared thermal imaging to map skin temperature * Laser Doppler imaging low-powered laser imaging to map blood flow in the skin * Multispectral imaging near-infrared light imaging to measure total blood flow and oxygen levels in the skin A reactive hyperemia experiment, in which multispectral images will be taken of the participant s forearm during and after the use of a blood pressure cuff A hair removal experiment, in which images will be collected of the participant s forearm in separate scans done before and after the hair is removed with a topical hair removal solution The entire series of exams will take approximately one hour to perform.
NCT00263536
This study will examine whether family-based interpersonal psychotherapy (FB-IPT) is an effective tool for helping pre-adolescent girls and boys at risk for become obese to reduce weight gain. IPT is a time-limited group therapy for preventing and treating depression in children. It is also effective for treating binge eating disorder in adults and has resulted in weight maintenance or modest weight loss in obese adults. IPT focuses on improving how people relate to one another by relating symptoms to personal problem areas and then developing strategies for dealing with these problems. Girls and boys between the ages of 8-13 years of age who are in good general health with the exception of being overweight and whose body mass index (BMI) is above the 85th percentile for their age and sex may be eligible for this study. Candidates are screened with a physical examination, measurement of their height and weight, blood and urine tests, a DEXA scan (x-ray scan that measures body fat, muscle and bone mineral content), and questionnaires and an interview to obtain information about the child's general health, social and psychological function, and eating patterns. Parents are also screened for their health and are asked to give blood samples for genetic studies and participate in a few questionnaires and interviews. Participants are randomly assigned to participate in FB-IPT or a health education program. Both programs involve 12 weekly visits. At the end of the study, the body weight and mood of the girls and boys in both groups are compared. Participants (a parent and their child) meet individually with the therapist for 12 sessions (each approximately an 45 minutes ). Girls and boys offered FB-IPT have meetings in which they develop strategies for dealing with the problems girls struggle with that may lead to increased eating. Girls and boys in the health education group have meetings that focus on teaching teens children to live healthier lives and review topics related to developing and maintaining healthy eating and exercise. All participants are evaluated at the end of the 12-week program and asked to return to the NIH for follow-up visits at post treatment, 6 and 12 months following initiation of the program. Each child and parent will be compensated for their time and inconvenience with $40 for completing all pre-program assessments, $40 for attending the 12 week follow-up visit, $40 for the 6 month follow-up visit, and $40 for the 1-year follow-up. Therefore, each child may receive up to $160, and the participating parent may receive up to $160. If a child's second biological parent is also willing to give a genetic sample and undergo interviews, the second parent can also receive $40 for a single visit to the NIH.