Aleksandra Żebrowska1, Barbara Hall1, Aleksandra Kochańska-Dziurowicz2, Grażyna Janikowska3. 1. Department of Physiological and Medical Sciences, Academy of Physical Education, Katowice, Poland. 2. Department of Health Care, Silesian Medical College, Katowice, Poland. 3. Department of Analytical Chemistry, Medical University of Silesia, Katowice, Poland.
Abstract
BACKGROUND: An integral part of the treatment of diabetes is physical activity. Scientific reports have shown the beneficial effects of hypoxia and exercise on cardiovascular and metabolic variables in patients with diabetes. OBJECTIVES: The aim of the study was to assess the effect of normobaric hypoxia and exercise on the serum concentrations of proangiogenic factors and glycemia in patients with type 1 diabetes. MATERIAL AND METHODS: A total of 28 adults (aged 30.4 years ±9.7 years), suffering from diabetes for 12.1 years ±6.0 years and healthy individuals, participated in the following trials: normoxic (Nor) and hypoxic (Hy) rest and Nor and Hy incremental exercise test (Ex) (FIO2 = 15.2%). The Altitude Trainer Hypoxico System (HYP-123 Hypoxic Generator, LOWOXYGEN Technology GmbH, Berlin, Germany) corresponding to a height of about 2500 m above sea level was used in the study. Exercise tests were performed on a cycle ergometer Excalibur Sport (Lode B.V., Groningen, The Netherlands). Cardiorespiratory variables, glycemia, angiogenic and hematological indices were measured at rest and in response to both exercise protocols. RESULTS: The present data confirmed that the patients with type 1 diabetes demonstrated a good level of aerobic capacity and fitness. NorEx and HyEx resulted in a significant decrease in serum glucose concentration (p < 0.05 vs p < 0.01). Patients with diabetes had higher baseline hypoxia induced factor-1alpha levels compared to healthy adults (p < 0.05), which increased after exposure to hypoxia and hypoxia with exercise (p < 0.001). Hypoxia significantly decreased baseline transforming growth factor-β (TGF-β) (p < 0.05) and had a significant effect on tumor necrosis factor-α level (TNF-α) (F = 4.9; p < 0.05). CONCLUSIONS: Our study demonstrated that hypoxia combined with exercise reduces glycemia and may induce significant benefits in the prevention of diabetes cardiovascular complications.
BACKGROUND: An integral part of the treatment of diabetes is physical activity. Scientific reports have shown the beneficial effects of hypoxia and exercise on cardiovascular and metabolic variables in patients with diabetes. OBJECTIVES: The aim of the study was to assess the effect of normobaric hypoxia and exercise on the serum concentrations of proangiogenic factors and glycemia in patients with type 1 diabetes. MATERIAL AND METHODS: A total of 28 adults (aged 30.4 years ±9.7 years), suffering from diabetes for 12.1 years ±6.0 years and healthy individuals, participated in the following trials: normoxic (Nor) and hypoxic (Hy) rest and Nor and Hy incremental exercise test (Ex) (FIO2 = 15.2%). The Altitude Trainer Hypoxico System (HYP-123 Hypoxic Generator, LOWOXYGEN Technology GmbH, Berlin, Germany) corresponding to a height of about 2500 m above sea level was used in the study. Exercise tests were performed on a cycle ergometer Excalibur Sport (Lode B.V., Groningen, The Netherlands). Cardiorespiratory variables, glycemia, angiogenic and hematological indices were measured at rest and in response to both exercise protocols. RESULTS: The present data confirmed that the patients with type 1 diabetes demonstrated a good level of aerobic capacity and fitness. NorEx and HyEx resulted in a significant decrease in serum glucose concentration (p < 0.05 vs p < 0.01). Patients with diabetes had higher baseline hypoxia induced factor-1alpha levels compared to healthy adults (p < 0.05), which increased after exposure to hypoxia and hypoxia with exercise (p < 0.001). Hypoxia significantly decreased baseline transforming growth factor-β (TGF-β) (p < 0.05) and had a significant effect on tumor necrosis factor-α level (TNF-α) (F = 4.9; p < 0.05). CONCLUSIONS: Our study demonstrated that hypoxia combined with exercise reduces glycemia and may induce significant benefits in the prevention of diabetes cardiovascular complications.
Entities:
Keywords:
angiogenesis; exercise tolerance; hypoxia-inducible factor-1; type 1 diabetes mellitus
Authors: Djeniffer Elias da Silva; Antônio José Grande; Leonardo Roever; Gary Tse; Tong Liu; Giuseppe Biondi-Zoccai; Joni Márcio de Farias Journal: Curr Atheroscler Rep Date: 2019-02-02 Impact factor: 5.113
Authors: Aleksandra Żebrowska; Dariusz Jastrzębski; Ewa Sadowska-Krępa; Marcin Sikora; Camillo Di Giulio Journal: Biomed Res Int Date: 2019-09-22 Impact factor: 3.411