Clinicians are interested in pain resulting from a pinched lumbar nerve caused by conditions such as a herniated disc, a bone spur or arthritis. The study takes place at the Clinical Center. All study-related tests and medicines are provided free of charge. You may be eligible if you have no medical conditions, or an irregular menstrual cycle, not pregnant, nursing or planning pregnancy over the next 3 years, do not use oral contraceptives or prescribed medications, smoke fewer than 2 cigarettes per day and drink fewer than 2 alcoholic drinks per day. Participation involves four visits over a 3-year period, blood test, bone density test, urine test and cognitive testing.
Compensation is provided.