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Hsu CC, Lin YT, Fu TC, Huang SC, Lin CH, Wang JS. Supervised Cycling Training Improves Erythrocyte Rheology in Individuals With Peripheral Arterial Disease. Front Physiol 2022; 12:792398. [PMID: 35069254 PMCID: PMC8766405 DOI: 10.3389/fphys.2021.792398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 12/03/2021] [Indexed: 11/13/2022] Open
Abstract
Peripheral arterial disease (PAD) results in insufficient flow to lower extremities. Aerobic exercise provides health benefits for individuals with PAD, but basic science behind it is still debated. Twenty-one PAD patients aged about 70 years with female/male as 7/14 were recruited. Among them, 11 were randomized to have supervised cycling training (SCT) and 10 to receive general healthcare (GHC) as controls. SCT participants completed 36 sessions of SCT at the first ventilation threshold within 12 weeks and the controls received GHC for 12 weeks. Ankle-brachial index (ABI), 6-min walk test (6MWT), peak oxygen consumption (V˙O2peak), minute ventilation (V˙E), minute carbon dioxide production (V˙CO2), erythrocyte rheology, including the maximal elongation index (EImax) and shear stress at 50% of maximal elongation (SS1/2), and the Short Form-36 (SF-36) questionnaire for quality of life (QoL) were assessed before and 12 weeks after initial visit. SCT significantly decreased the SS1/2 as well as SS1/2 to EImax ratio (SS1/2/EImax) and increased the erythrocyte osmolality in the hypertonic region as well as the area under EI-osmolality curve. The supervised exercise-induced improvement of erythrocyte deformability could contribute to the increased peripheral tissue O2 delivery and was possibly related with increased V˙O2peak. The physiological benefit was associated with significantly increased ABI, 6-min walking distance, cardiorespiratory fitness, and SF-36 score. However, no significant changes in aerobic capacity and erythrocyte rheological properties were observed after 12-week of GHC. In conclusion, SCT improves aerobic capacity by enhancing erythrocyte membrane deformability and consequently promotes QoL in PAD patients.
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Affiliation(s)
- Chih-Chin Hsu
- Department of Physical Medicine and Rehabilitation, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan.,School of Medicine, College of Medicine, Chang Gung University, Taoyuan City, Taiwan
| | - Yu-Ting Lin
- Healthy Aging Research Center, College of Medicine, Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan City, Taiwan
| | - Tieh-Cheng Fu
- Department of Physical Medicine and Rehabilitation, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Shu-Chun Huang
- School of Medicine, College of Medicine, Chang Gung University, Taoyuan City, Taiwan.,Department of Physical Medicine and Rehabilitation, Linkou Chang Gung Memorial Hospital, Taoyuan City, Taiwan.,Department of Physical Medicine and Rehabilitation, New Taipei Municipal Tucheng Hospital, New Taipei City, Taiwan
| | - Cheng-Hsien Lin
- Healthy Aging Research Center, College of Medicine, Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan City, Taiwan
| | - Jong-Shyan Wang
- Department of Physical Medicine and Rehabilitation, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan.,Healthy Aging Research Center, College of Medicine, Graduate Institute of Rehabilitation Science, Chang Gung University, Taoyuan City, Taiwan.,Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan City, Taiwan
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Krüger-Genge A, Sternitzky R, Pindur G, Rampling M, Franke R, Jung F. Erythrocyte aggregation in relation to plasma proteins and lipids. ACTA ACUST UNITED AC 2019. [DOI: 10.3233/jcb-189014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- A. Krüger-Genge
- Department of Anesthesia, Pain Management and Perioperative Medicine, Faculty of Medicine, Dalhousie University, Halifax, Canada
| | | | - G. Pindur
- Institute of Clinical Haemostasiology and Transfusion Medicine, University of Saarland, Homburg, Germany
| | - M. Rampling
- Department of Bioengineering, Imperial College London, London, UK
| | - R.P. Franke
- Central Institute for Biomedical Engineering, Department of Biomaterials, University of Ulm, Ulm, Germany
| | - F. Jung
- Institute of Clinical Haemostasiology and Transfusion Medicine, University of Saarland, Homburg, Germany
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Napoleão P, Freitas T, Saldanha C. Effect of oxidized LDL on erythrocyte nitric oxide metabolism. Clin Hemorheol Microcirc 2016. [DOI: 10.3233/ch-168050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Napoleão P, Freitas T, Saldanha C. Effect of oxidized LDL on erythrocyte nitric oxide metabolism. Clin Hemorheol Microcirc 2016; 64:971-975. [PMID: 27767978 DOI: 10.3233/ch-168025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AIMS Oxidized low density lipoprotein (ox-LDL) has been reported as an inhibitor of nitric oxide (NO)-mediated dilatation in microcirculation. Oxidized LDL effect on NO metabolism of erythrocytes is not known. Therefore, this study aims to evaluate the effect of ox-LDL on erythrocytes NO metabolism. METHODS The effect of different concentrations of human purified ox-LDL (25, 50 and 100 μg/mL) on NO metabolism was evaluated on blood of healthy subjects. RESULTS An inhibitory effect of higher concentrations of ox-LDL on erythrocyte NO efflux levels was verified. Concentrations of NO efflux from erythrocytes were lower as consequence of treatments with 50 μg/mL ox-LDL treatment (1.6±0.27 nM) and 100 μg/mL ox-LDL treatment (1.3±0.22 nM) than control (1.9±0.28 nM). Opposite, ox-LDL incubation has a positive effect on GSNO content of erythrocytes. That effect is proportional to concentrations of ox-LDL treatments (10.8±1.4 nM for 25 μg/mL, 12.9±1.5 nM for 50 μg/mL and 12.1±1.9 nM for 100 μg/mL) and is significant relative to control (8.56±0.76 μM) and ACh (8.9±0.52 μM) aliquots. CONCLUSIONS Presence of oxidized LDL in erythrocyte NO metabolism induces a decrease of NO efflux amount and an increase on intra-erythrocyte GSNO concentrations. These results suggest a role of ox-LDL in mobilization of NO between NO derivatives molecules in dependence of oxidized LDL concentration. An anti - reactive nitrogene role can be attributed to ox-LDL for its contribution in the erythrocyte scavenged ability for nitric oxide.
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Affiliation(s)
- Patrícia Napoleão
- Carlota Saldanha Lab, Instituto de Medicina Molecular, Universidade de Lisboa, Lisboa, Portugal
| | - Teresa Freitas
- Instituto de Bioquímica Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Carlota Saldanha
- Carlota Saldanha Lab, Instituto de Medicina Molecular, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Bioquímica Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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