1Department of Medicine, Karolinska Institutet, Stockholm, Sweden. E-mail: [email protected], 2Department of Molecular Biology, Umeå University, Umeå, Sweden. E-mail: [email protected], 3Department of Molecular Biology, Umeå University, Umeå, Sweden. E-mail: [email protected], 4Department of Molecular Biology, Umeå University, Umeå, Sweden. E-mail: [email protected], 5Department of Endocrinology, Karolinska Institutet, Stockholm, Sweden. E-mail: [email protected], 6Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden. E-mail: [email protected], 7Department of Medicine, Karolinska Institutet, Stockholm, Sweden. E-mail: [email protected], 8Department of Community Medicine and Rehabilitatio, Umeá University, Umeá, Sweden. E-mail: [email protected]