PMID- 18394014 OWN - NLM STAT- MEDLINE DCOM- 20080924 LR - 20230829 IS - 1538-7836 (Electronic) IS - 1538-7836 (Linking) VI - 6 IP - 6 DP - 2008 Jun TI - Differential impact of conventional-dose and low-dose postmenopausal hormone therapy, tibolone and raloxifene on C-reactive protein and other inflammatory markers. PG - 928-34 LID - 10.1111/j.1538-7836.2008.02970.x [doi] AB - BACKGROUND: Postmenopausal hormone therapy (HT) is associated with an increased risk for arterial and venous thrombosis. OBJECTIVES: To compare the impact of HT, tibolone, and raloxifene on C-reactive protein (CRP) and other inflammatory markers, and to investigate possible underlying mechanisms for changes in CRP and D-dimer. METHODS: Two hundred and two healthy women were randomly assigned to treatment for 12 weeks with either low-dose HT containing 1 mg of 17beta-estradiol and 0.5 mg of norethisterone acetate (NETA) (n = 50), conventional-dose HT containing 2 mg of 17beta-estradiol and 1 mg of NETA (n = 50), 2.5 mg of tibolone (n = 51), or 60 mg of raloxifene (n = 51). RESULTS: CRP increased in the conventional-dose HT and low-dose HT groups. These changes were significantly more pronounced in the conventional-dose HT group (RMANOVA, P = 0.02). Also, tibolone was associated with an increase in CRP, in contrast to raloxifene, which reduced CRP. Reductions in levels of Lp(a), intercellular adhesion molecule-1 (ICAM-1), P-selectin, E-selectin, monocyte chemotactic protein 1 (MCP-1) and interleukin-6 (IL-6) were observed in all treatment groups. The changes were most pronounced for the conventional-dose HT group, and least pronounced for the raloxifene group, whereas the changes in those allocated to tibolone and low-dose HT were intermediary. Increased levels of tumor necrosis factor (TNF)-alpha and von Willebrand factor (VWF) were seen in the raloxifene group. We observed positive associations between changes in IL-6, VWF, MCP-1, and CRP. CONCLUSIONS: The regimens had markedly different impacts on markers of inflammation. The average increase in CRP was not accompanied by increases in the average levels of IL-6, TNF-alpha or other markers, but women with large reductions in IL-6 had reduced increases in CRP. FAU - Eilertsen, A L AU - Eilertsen AL AD - Department of Haematology, Ulleval University Hospital Trust, Oslo, and Faculty Division Ulleval University Hospital, Oslo, Norway. a.l.eilertsen@medisin.uio.no FAU - Sandvik, L AU - Sandvik L FAU - Steinsvik, B AU - Steinsvik B FAU - Sandset, P M AU - Sandset PM LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20080403 PL - England TA - J Thromb Haemost JT - Journal of thrombosis and haemostasis : JTH JID - 101170508 RN - 0 (Antineoplastic Agents, Hormonal) RN - 0 (Biomarkers) RN - 0 (Bone Density Conservation Agents) RN - 0 (Norpregnenes) RN - 4F86W47BR6 (Raloxifene Hydrochloride) RN - 9007-41-4 (C-Reactive Protein) RN - FF9X0205V2 (tibolone) SB - IM MH - Aged MH - Antineoplastic Agents, Hormonal/*pharmacology MH - Biomarkers/metabolism MH - Bone Density Conservation Agents/*pharmacology MH - C-Reactive Protein/*biosynthesis MH - Cell Adhesion MH - *Estrogen Replacement Therapy MH - Female MH - Humans MH - Inflammation MH - Middle Aged MH - Norpregnenes/*pharmacology MH - Postmenopause MH - Raloxifene Hydrochloride/*pharmacology EDAT- 2008/04/09 09:00 MHDA- 2008/09/25 09:00 CRDT- 2008/04/09 09:00 PHST- 2008/04/09 09:00 [pubmed] PHST- 2008/09/25 09:00 [medline] PHST- 2008/04/09 09:00 [entrez] AID - S1538-7836(22)12690-5 [pii] AID - 10.1111/j.1538-7836.2008.02970.x [doi] PST - ppublish SO - J Thromb Haemost. 2008 Jun;6(6):928-34. doi: 10.1111/j.1538-7836.2008.02970.x. Epub 2008 Apr 3.