Abstract:
BACKGROUND:Autologous blood doping (ABD) is applied to improve performance capacity. ABD includes blood donation, red blood cell (RBC) storage at -80°C and re-infusion prior to or during competition. ABD is not directly detectable with current detection techniques. OBJECTIVE:Since cryopreservation is known to affect RBC physiology in vitro, the aim of the study was to examine whether these alterations are detectable in vivo. METHODS:Blood from six healthy male donors was transferred into conventional blood bags, cryopreserved, stored for 18 weeks at -80°C and re-infused with a RBC volume corresponding to ∼4% of total blood volume into respective donor. RBC physiology parameters were measured before blood donation/re-infusion, and 0/1/2/6/24/48/72 h and 1 w post re-infusion. RESULTS:RBC parameters and age markers were unaffected during intervention. RBC deformability increased from pre-blood-sampling to pre-re-infusion while deformability and viscosity values remained unaltered post re-infusion. RBC nitric oxide associated analytes, metabolic parameters and electrolyte concentrations remained unaffected. CONCLUSIONS:The data of this pilot study indicate that the increase in RBC deformability might be related to neoformation of RBC after blood donation. The lack of changes in tested parameters might be related to the low re-infused RBC volume which might explain differences to in vitro results.
journal_name
Clin Hemorheol Microcircjournal_title
Clinical hemorheology and microcirculationauthors
Bizjak DA,Grolle A,Urena JAN,Bloch W,Deitenbeck R,Grau Mdoi
10.3233/CH-200887subject
Has Abstractpub_date
2020-01-01 00:00:00pages
367-379issue
3eissn
1386-0291issn
1875-8622pii
CH200887journal_volume
76pub_type
杂志文章abstract:BACKGROUND:The ability to evaluate tumor development within experimental oncology is of upmost importance. However, determining tumor volumes in 3D in vivo tumor models is challenging. The chick chorioallantoic membrane (CAM) model represents an optimized xenograft model that surpasses many disadvantages that are inher...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-209216
更新日期:2020-01-01 00:00:00
abstract::Primary closure in dermatologic surgery is state of the art in small lesions at the head, but also in larger lesions at the trunk or the extremities. Microcirculatory effects on the skin blood flow near to the wound edges affected by primary closure. Forty three patients were investigated. Before and after surgery, sk...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-2010-1371
更新日期:2011-01-01 00:00:00
abstract:PURPOSE:Cross limb stent graft (SG) configuration technique for endovascular aneurysm repair (EVAR) is employed for splayed aortic bifurcations to avoid device kinking and smoothen cannulation. The present study investigates three types of stent graft (SG) configurations for endovascular aneurysm repair (EVAR) in abdom...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-200996
更新日期:2021-01-13 00:00:00
abstract::The present investigation was designed to evaluate the acute effect of aerobic exercise on oxidative stress and the flow properties of the blood. Fourteen clinically healthy subjects (7 men and 7 women aged 56+/-19 yr) underwent maximal treadmill exercise with blood samples drawn prior to and immediately after exercis...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract::Severe side effects of cocaine consumption are vasoocclusive events such as myocardial infarction and stroke. We have hypothesized that cocaine could affect red blood cells (RBCs) and alter the rheological behaviour of blood. Heparinized blood from healthy volunteers was incubated with a final hematocrit of 45% with i...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-2012-1638
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVE:To investigate the extent to which B-flow and B-flow with 3D postprocessing and speckle reduction imaging (SRI) have advantages in appraising the morphology of a high-grade stenosis of the internal carotid artery (ICA) for preinterventional planning and for postinterventional ultrasonographic follow-up. MATE...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:
更新日期:2007-01-01 00:00:00
abstract::Covalent binding of poly(ethylene glycol), abbreviated as PEG, to red blood cells (RBC) surface leads to masking of the RBC blood group determinants and the PEG layer on the cell surface sterically hinders RBC-RBC and RBC-plasma protein interactions. We cross-linked linear mPEG-SPA of various molecular mass (2000, 500...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00
abstract::Blood vessel occlusions of various origin, depending on the duration and extension, result in tissue damage, causing ischemic or ischemia-reperfusion injuries. Necessary surgical clamping of vessels in vascular-, gastrointestinal or parenchymal organ surgery, flap preparation-transplantation in reconstructive surgery,...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章,评审
doi:10.3233/CH-131648
更新日期:2014-01-01 00:00:00
abstract::After rabbit's erythrocytes were treated with different concentrations of intercellular Ca2+ and ionophore A23187 respectively, the orientation index (DI)or, and small deformation index (DI)d of rabbit erythrocytes were measured by new model ektacytometry. The results demonstrated that (DI)or and (DI)d decreased while...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
abstract:BACKGROUND:Microvascular dysfunction is a main contributor to morbidity and mortality worldwide. Sophisticated technical tools (e.g. miniaturized hardware, automated software), along with skilled personnel are the prerequisite for quantitative observations of the microvasculature. OBJECTIVE:This review aimed to get an...
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pub_type: 杂志文章,评审
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更新日期:2019-01-01 00:00:00
abstract::Linear, side-chain methylated oligoglycerols (OGMe) were recently reported as potential surface passivating molecules for improving the protein resistance of cardiovascular application relevant poly(ether imide) (PEI) membranes. A previously reported in vitro screening under static test conditions allowed an end-point...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-131729
更新日期:2013-01-01 00:00:00
abstract:PURPOSE:To evaluate whether changes of dynamic contrast-enhanced ultrasound (CEUS)-based liver microcirculation during chronic liver disease are correlated with the extent of impaired liver function, expressed by the indocyanine green (ICG) clearance. MATERIALS AND METHODS:19 patients underwent CEUS examinations with ...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-151990
更新日期:2015-01-01 00:00:00
abstract::In this study, we have attempted to verify whether a single bout of strenuous exercise performed by sedentary healthy individuals may interfere with the mechanisms controlling platelet sensitivity through exercise-related modifications of plasma oxidant/antioxidant equilibrium. Strenuous exercise resulted in an increa...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:
更新日期:2004-01-01 00:00:00
abstract:OBJECTIVE:This study aims to investigate the effect of nimodipine combined with betahistine on the levels of CRP and other inflammatory cytokines, as well as vascular endothelial function in patients with hypertensive cerebral vasospasm. METHODS:A total of 80 patients with hypertensive cerebral vasospasm from March 20...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-190589
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:It is difficult to assess tumors of the parotid gland preoperatively. However, it is essential for the surgeon to know which kind of tumor is present. Ultrasound is the method of choice, but there is still no reliable differential diagnostic tool for determining whether a tumor is malignant or benign. OBJEC...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-179223
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Hemodialysis patients have increased mortality from cardiovascular complications. Whole blood viscosity (WBV) and red cell aggregation (RCA) may influence the pathogenesis of vascular complications in this population. The objective of this study was to determine whether the hemodialysis treatment or vascular...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-2012-1532
更新日期:2012-01-01 00:00:00
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journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-162046
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:To investigate the role and potential mechanism of Toll-like receptor 4 (TLR4)/nuclear factor-kappa B (NF-κB) signaling pathway in cognitive impairment induced by cerebral small vascular disease (CSVD), so as to provide a reference for the clinical treatment of CSVD-induced cognitive impairment. METHODS:Mice...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-180515
更新日期:2019-01-01 00:00:00
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journal_title:Clinical hemorheology and microcirculation
pub_type: 临床试验,杂志文章
doi:10.3233/CH-2012-1568
更新日期:2013-01-01 00:00:00
abstract::In this study we determine the effects of reducing blood glucose on mean arterial blood pressure (MAP) and hematocrit (Hct) in patients with type 2 diabetes who are not responding to conventional treatment in an intensive treatment program 1 year after initiation of treatment. Data on MAP, glucose and Hct was obtained...
journal_title:Clinical hemorheology and microcirculation
pub_type: 临床试验,杂志文章
doi:
更新日期:2008-01-01 00:00:00
abstract::Erythrocyte deformability could be a suitable parameter reflecting hyposplenic-asplenic conditions after splenectomy or spleen autotransplantation. The aim of this study was to analyze the efficacy of spleen autotransplantation using filtrometry and ektacytometry for testing erythrocyte deformability, besides complex ...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-2010-1307
更新日期:2010-01-01 00:00:00
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journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-200857
更新日期:2020-07-09 00:00:00
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journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:
更新日期:2007-01-01 00:00:00
abstract:OBJECTIVE:To assess the severity of renal pathology in patients with chronic kidney disease (CKD) using contrast-enhanced ultrasonography (US). METHODS:275 patients with CKD who were proven by renal biopsy and 30 healthy adults were examined using conventional US and contrast-enhanced US. Ultrasonic parameters include...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-170303
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:The optimal timing of remote ischemic preconditioning (RIPC) in renal ischemia-reperfusion (I/R) injury is still unclear. We aimed to compare early- and delayed-effect RIPC with hematological, microcirculatory and histomorphological parameters. METHODS:In anesthetized male CrI:WI Control rats (n = 7) laparo...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-200916
更新日期:2020-01-01 00:00:00
abstract::It is well established that exercise performance in athletes is related to improved blood fluidity. However, training effects on functional state of endothelium and relations of endothelial cell functions with hemorheology are poorly known. Circulating levels of von Willebrand factor may serve as a good marker of endo...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract:PURPOSE:To explore the peripapillary capillary density distribution and its correlation with nerve fibre layer in superficial and deep retinal layers of healthy Chinese. METHODS:Images of superficial and deep retinal capillary networks were obtained by optical coherence tomography angiography (OCTA) using a CIRRUS TM ...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-180453
更新日期:2020-01-01 00:00:00
abstract::Accumulated uremic toxins like indoxyl sulphate, hippuric acid and p-cresyl sulphates in renal failure patients stimulate proinflammatory effects, and consequently kidney and cardiovascular diseases. Low clearance rate of these uremic toxins from the blood of uremic patients by conventional techniques like hemodialysi...
journal_title:Clinical hemorheology and microcirculation
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doi:10.3233/CH-168046
更新日期:2016-01-01 00:00:00
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journal_title:Clinical hemorheology and microcirculation
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doi:10.3233/CH-2011-1448
更新日期:2012-01-01 00:00:00
abstract::Altitude training is frequently used by athletes to improve sea-level performance. However, the objective benefits of altitude training are controversial. This study aimed to investigate the possible alterations in hemorheological parameters in response to altitude training. Sprague Dawley rats, were divided into 6 gr...
journal_title:Clinical hemorheology and microcirculation
pub_type: 杂志文章
doi:10.3233/CH-131711
更新日期:2014-01-01 00:00:00