Plasma levels of antioxidant vitamins in patients with acromegaly: A case-control study


ÖZDEMİR N., Yurekli B. S., Simsir I. Y., SUNER KARAKÜLAH A., Seckiner S., Kucukerdonmez O., ...More

Neuroendocrinology Letters, vol.40, no.7-8, pp.308-314, 2019 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 40 Issue: 7-8
  • Publication Date: 2019
  • Journal Name: Neuroendocrinology Letters
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.308-314
  • Keywords: Acromegaly, Anthropometric parameters, Antioxidants, Vitamin C, Vitamin E
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

OBJECTIVE: The aim of this study was to compare antioxidant Vitamin C and Vitamin E levels in the non-acromegaly control group and in patients with acromegaly with and without remission. MATERIAL AND METHODS: In this study, 100 cases, acromegaly patients of 57% (n=57, 29F, 28M, mean ages of 49.5±12.1) and control subjects of 43% (n=43, 29F, 14M, mean ages of 49.6±9.2). Acromegaly patients were classified into two groups; active acromegaly (AA; n=33) and controlled acromegaly (CA; n=24). RESULTS: Vitamin C levels were significantly lower in the acromegaly group [7.6 (4.7) mg/L, as median (IQR)] when compared to the control group [12.2 (5.5) mg/L, as median (IQR)] (p <0.001). Vitamin E levels didn't show a significant difference between the acromegaly and the control groups (14.2±3.6 vs. 14.8±3.7, as mean±SD, respectively, p = 0.439). Correlation analysis showed that Vitamin C levels were not significantly associated with clinical, anthropometric and laboratory parameters in the acromegaly group. Vitamin E levels were significantly associated with the total cholesterol, triglyceride, LDL-C, HDL-C, APO Al, APO B both in the acromegaly and the control groups. CONCLUSION: This study is the first one to investigate the relationship between the levels of Vitamin C & E and anthropometric & metabolic parameters in acromegaly patients and control group. In our study, Vitamin C level was significantly lower in the acromegaly group compared to the level in the control group. There was no significant difference in Vitamin E levels between the acromegaly and control group.