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FRIMED-Klinisk medisin og folkehelse

The Tromsø Pain Study: Causes and consequences of individual differences in pain sensitivity

Tildelt: kr 3,7 mill.

Human pain sensitivity is subject to very large inter-individual variation. It is known that pain sensitivity is heritable, but the genes involved are largely unknown. Hypersensitivity to pain may be an important risk factor in the development, maintenanc e and consequences of chronic pain. Reduced sensitivity to pain may on the other hand lead to delayed or incorrect diagnosis, with potentially serious consequences for the patient. In this study we apply laboratory methods to measure pain sensitivity, and questionnaires to assess chronic pain in a large population based sample (N ~ 9000). In addition, the study will have access to DNA, and extensive longitudinal information on physical and mental health. The studies most important immediate goals w ill be: to explore relationships between pain sensitivity, chronic pain, medication use, depression, and disability; to characterize sex differences in pain; to test associations between pain sensitivity and polymorphisms in candidate genes; and to explo re the relationship between blood-pressure and pain. The project will be extended to a prospective design, with follow up 5-7 years later. This will enable identification of risk factors for chronic pain, make it possible to draw inferences about causal r elationships between pain and depression, and to assess whether reduced pain sensitivity leads to increased mortality. In addition to its scientific contribution, findings from the study will be of significance for the treatment of pain and for health pol icy. Similar studies have not been performed previously.

Budsjettformål:

FRIMED-Klinisk medisin og folkehelse