Changes in body composition and muscle strength in girls with idiopathic central precocious puberty during gonadotropin-releasing hormone agonist therapy

Yıl 2025, Cilt: 8 Sayı: 1, 63 - 69, 12.01.2025

Zeynep Donbaloğlu , Berna Singin , Ebru Barsal Çetiner , Aynur Bedel , Bilge Aydın Behram , Kürşat Çetin , Hale Tuhan , Mesut Parlak

https://doi.org/10.32322/jhsm.1557045

Öz

Aims: Our objective is to explore changes in body fat distribution and muscle strength among a cohort of girls with idiopathic central precocious puberty (ICPP) undergoing the gonadotropin-releasing hormone analogs (GnRHa) therapy.
Methods: A total of 50 patients who were newly diagnosed with ICPP and treated with GnRHa were included in the study. Patients were investigated at baseline, 6th months and 12th months.
Results: Body-mass index (BMI) standard deviation score (SDS) was similar throughout the treatment duration. The percentage of body fat (PBF) increased from 24.2±5.1% at the beginning to 26.3±5.3% at the 6th month and to 27.7±5.43% at the 12th month (p<0.001). While lean body mass (LBM) increased during the treatment duration (p<0.001), there was a decrease in the LBM percentage in both the 6th month and 12th month (p=0.001, p=0.005). The change in PBF between 0 and 12 months was significantly higher in the group with PBF<97th percentile (p), with a median of 2.3 (3.3)%, compared to a median of 0.5 (0.5)% in the group with PBF>97th p (p=0.005).
Conclusion: Over the one-year duration of GnRHa treatment, no increase was observed in BMI SDS. While PBF increased, a decrease was noted in LBM percentage. Despite the decrease in LBM percentage, since LBM increased over the course of treatment, an increase in muscle strength was observed under GnRHa therapy. Additionally, the alteration in PBF during GnRHa treatment exhibited variations based on the initial PBF status.

Anahtar Kelimeler

Central precocious puberty, GnRHa therapy, body composition, lean body mass, muscle strength

Etik Beyan

Approval was obtained from the Ethics Committee prior to the commencement of the study (protocol number: 70904504/179). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Destekleyen Kurum

n/a

Gonadotropin salgılatıcı hormon agonisti tedavisi sırasında idiyopatik santral erken ergenlik dönemindeki kızlarda vücut kompozisyonunda ve kas gücünde meydana gelen değişiklikler

Öz

Amaçlar: Amacımız, gonadotropin salgılatıcı hormon analogları (GnRHa) tedavisi gören idiyopatik santral erken ergenlik (ICPP) hastası kızlardan oluşan bir kohortta vücut yağ dağılımı ve kas gücündeki değişiklikleri incelemektir.
Yöntemler: Çalışmaya yeni ICPP tanısı almış ve GnRHa ile tedavi edilen toplam 50 hasta dahil edildi. Hastalar başlangıçta, 6. ayda ve 12. ayda incelendi.
Sonuçlar: Vücut kitle indeksi (VKİ) standart sapma skoru (SDS) tedavi süresi boyunca benzerdi. Vücut yağ yüzdesi (PBF) başlangıçta %24,2±5,1'den 6. ayda %26,3±5,3'e ve 12. ayda %27,7±5,43'e yükseldi (p<0,001). Tedavi süresi boyunca yağsız vücut kütlesi (LBM) artarken (p<0,001), hem 6. ayda hem de 12. ayda LBM yüzdesinde azalma görüldü (p=0,001, p=0,005). 0 ile 12 ay arasındaki PBF'deki değişim, PBF<97. persentil olan grupta anlamlı şekilde daha yüksekti (p), medyan %2,3 (3,3) iken, PBF>97. p olan grupta medyan %0,5 (0,5) idi (p=0,005).
Sonuç: GnRHa tedavisinin bir yıllık süresi boyunca, BMI SDS'de artış gözlenmedi. PBF artarken, LBM yüzdesinde bir azalma kaydedildi. LBM yüzdesindeki azalmaya rağmen, LBM tedavi süresince arttığından, GnRHa tedavisi altında kas gücünde bir artış gözlendi. Ayrıca, GnRHa tedavisi sırasında PBF'deki değişim, başlangıç ​​PBF durumuna bağlı olarak farklılıklar gösterdi.

Anahtar Kelimeler

Merkezi erken ergenlik, GnRHa tedavisi, vücut kompozisyonu, yağsız vücut kütlesi, kas gücü

Kaynakça

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