The phone numbers for more information about the studies below are 1-866-444-2214 (TTY 1-866-411-1010) unless otherwise noted.
Volunteers are needed for a study examining the immune function in healthy volunteers given short-term treatment of sitagliptin. Investigators wish to determine if and how sitagliptin alters immune function. If you are 18 or older and healthy, consider participating in this study. All study-related tests are provided at no cost. Compensation is provided. Refer to study 09-DK-0055.
Sleep Deprivation and Obesity
NIH is conducting a Sleep and Weight Study for obese adults ages 18 to 50 who sleep less than 6 hours at night. This study will examine the relation of sleep to body weight, the amount of body fat and the level of hormones that control appetite. Medical history and physical examination are provided at no cost. Compensation is provided. Refer to study 06-DK-0036.
Individuals with liver disease are needed for NIH study. NIDDK is conducting studies on liver diseases including hepatitis B, C, and D, primary biliary cirrhosis, nonalcoholic steatohepatitis (NASH), fatty liver disease, autoimmune hepatitis, portal hypertension not due to cirrhosis, acute hepatitis from any cause and rare or unexplained liver disorders. Studies are conducted at the Clinical Center. No cost for study-related medications, tests or treatments. Must be 18 years of age or older. Refer to study 91-DK-0214.
Green Tea Study
What are the health benefits of green tea? Would you like to find out? The National Center for Complementary and Alternative Medicine is conducting a study that will examine whether EGCG, a major component of green tea, affects how the body responds to insulin in healthy and obese people, people with high blood pressure and people with type 2 diabetes. Healthy volunteers ages 21-65 who are in general good health may be eligible to participate. Compensation is provided to participants. Refer to study 07-AT-0089.