The Effectiveness of Tibolone Versus Intranasal Oestrogen Replacement Therapy on Serum Lipid Profile in Postmenopausal Women

Abstract

Objective: To compare tibolone therapy with intranasal estrogen replacement therapy protocols on their effects on serum lipid profiles. Material Method: 84 post-menopausal women were included in the study. They were given either oral daily treatment with tibolone (2.5 mg) (Group I; n= 35); or intranasal administration of estrogen (Group II; n = 49 ). The duration of the treatment was 6 months. At the beginning and at the end of the therapy, lipid levels were measured in each of the group and then these two different groups were compared. Student-t test was used for statistical analysis. Results: No statistical difference was observed at baseline levels between two groups. Total cholosterol levels were increased significantly from baseline levels in both groups. However, at the end of the 6 months no statistical difference was found between two groups. LDL-cholesterol (LDL-C) levels were not changed from the baseline levels in both of the groups. In intranasal estrogen group, while HDL-C levels were decreased, it has increased in tibolone group. While triglycerides (TAG) levels were significantly decreased in intranasal 17β-E2 group, no significant change has been found in tibolone group. Lp(a) levels were not changed with therapy in both group. Conclusion: Short-term treatment with tibolone showed a good clinical-laboratory safety profile in postmenopausal women. Also it may be a good alternative to other HRT protocols in postmenopausal women. Key words: Tibolone, İntranasal estrogen, Lipids

Keywords

• Tibolone, İntranasal estrogen, Lipids

Postmenopozal Kadınlarda Tibolon ve İntranasal Östradiol’ün Kan Lipid Parametreleri Üzerine Olan Etkileri

Öz

Amaç: Tibolon ve intranasal östrojen replasman tedavisi'nin serum lipid seviyeleri üzerine etkilerinin karşılaştırılması Gereç ve Yöntem: Çalışmaya toplam 84 postmenopozal kadın dahil edildi. Hastalara günlük tibolon (2,5 mg)(Grup I; n= 35) ve intranasal östrojen (Grup II; n= 49) verildi. Tedavi süresi 6 aydı. Tedavinin başlangıcı ve sonu lipid seviyeleri her grup için ölçüldü ve farklı iki grubun değerleri karşılaştırıldı. İstatistiksel analiz için Student-t testi kullanıldı. Sonuç: Her iki grup değişkenlerin basal seviyeleri arasında istatistiksel olarak anlamlı fark saptanmadı. Her iki grupta total kolesterol seviyeleri başlangıç seviyelerine göre belirgin artmıştı. Fakat 6 aylık tedavi sonrasında iki grup arasında istatistiksel fark saptanamadı. LDL kolesterol (LDL-C) seviyelerinde her iki grupta da tedavi öncesine göre değişim saptanamadı. HDL kolesterol (HDL-C) seviyeleri intranasal 17β-E2 grubunda belirgin olarak azalırken, tibolon grubunda belirgin olarak artmıştır. Trigliserid (TAG) seviyeleri intranasal 17β-E2 grubunda belirgin azalırken tibolon grubunda belirgin değişiklik saptanmadı. Her iki grup Lipoprotein (a) (Lp(a)) seviyeleri her iki tedavide de değişim saptanmadı. Tartışma: Postmenopozal kadınlarda, tibolon ile kısa süreli tedavinin iyi klinik-laboratuar güvenlilik profili gösterdiği saptandı.. Ayrıca postmenopozal kadınlarda diğer HRT protokollerine iyi bir alternatif olabilir. Anahtar kelimeler: Tibolon, İntranasal östrojen, Lipidler.

Anahtar Kelimeler

• Tibolon, İntranasal östrojen, Lipidler.

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