Vol 53, No 4 (2021)

Cover and Content	PDF
	1-5

Editorials

Editorial	PDF
Nataliya Usheva	7

Reviews

Correlation between diabetic retinopathy and glycaemic variability, assessed with continuous glucose monitoring in patients with type 2 diabetes mellitus—a review	PDF
Velina Kerekovska, Mila Boyadzhieva, Zornitsa Zlatarova, Kiril Hristozov	9-15

The application of virtual reality simulators in laparoscopic surgery training (a review)	PDF
Turgay Kalinov, Aleksandar Zlatarov, Mehmed Hadzhiveli	16-22

Original Articles

Postmenopausal bone health may be influenced by the presence of arterial hypertension and antihypertensive therapy	PDF
Radina Dimitrova, Kiril Hristozov, Mila Boyadzhieva	23-30

Network-constrained regularization in computational biology and medicine	PDF
Sivo Daskalov, Kristina Bliznakova	31-38

Effects of Aronia melanocarpa fruit juice on oxidative stress, energy homeostasis, and liver function in overweight and healthy-weight individuals	PDF
Silvia Gancheva, Irina Ivanova, Antonia Atanassova, Diana Gancheva-Tomova, Miroslav Eftimov, Klementina Moneva, Maria Zhelyazkova-Savova, Stefka Valcheva-Kuzmanova	39-46

Effect of Aronia melanocarpa fruit juice on the antioxidant defense system in rats with diet-induced metabolic syndrome	PDF
Mehmed Abtulov, Silvia Gancheva, Milena Todorova, Miroslav Eftimov, Maria Zhelyazkova-Savova, Stefka Valcheva-Kuzmanova	47-53