1. Ku YH, Koo BK, Ahn HJ, Jeong JY, Seok HG, Kim HC, Han KA, Min KW. Effects of aerobic exercise intensity on insulin resistance in patients with type 2 diabetes mellitus. Korean Diabetes J. 2009. 33:401–411.

2. Whitson BA, Leslie DB, Kellogg TA, Maddaus MA, Buchwald H, Billington CJ, Ikramuddin S. Adipokine response in diabetics and nondiabetics following the Roux-en-Y gastric bypass: a preliminary study. J Surg Res. 2007. 142:295–300.

3. Graham TE, Yang Q, Blüher M, Hammarstedt A, Ciaraldi TP, Henry RR, Wason CJ, Oberbach A, Jansson PA, Smith U, Kahn BB. Retinol-binding protein 4 and insulin resistance in lean, obese, and diabetic subjects. N Engl J Med. 2006. 354:2552–2563.

4. Lim S, Choi SH, Jeong IK, Kim JH, Moon MK, Park KS, Lee HK, Kim YB, Jang HC. Insulin-sensitizing effects of exercise on adiponectin and retinol-binding protein-4 concentrations in young and middle-aged women. J Clin Endocrinol Metab. 2008. 93:2263–2268.

5. Vitkova M, Klimcakova E, Kovacikova M, Valle C, Moro C, Polak J, Hanacek J, Capel F, Viguerie N, Richterova B, Bajzova M, Hejnova J, Stich V, Langin D. Plasma levels and adipose tissue messenger ribonucleic acid expression of retinol-binding protein 4 are reduced during calorie restriction in obese subjects but are not related to diet-induced changes in insulin sensitivity. J Clin Endocrinol Metab. 2007. 92:2330–2335.

6. Gómez-Ambrosi J, Rodríguez A, Catalán V, Ramírez B, Silva C, Rotellar F, Gil MJ, Salvador J, Frühbeck G. Serum retinol-binding protein 4 is not increased in obesity or obesity-associated type 2 diabetes mellitus, but is reduced after relevant reductions in body fat following gastric bypass. Clin Endocrinol (Oxf). 2008. 69:208–215.

7. Janke J, Engeli S, Boschmann M, Adams F, Böhnke J, Luft FC, Sharma AM, Jordan J. Retinol-binding protein 4 in human obesity. Diabetes. 2006. 55:2805–2810.