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Mir MA, Tirumkudulu MS. A viscosity measurement technique for ultra-low sample volumes. SOFT MATTER 2024; 20:4358-4365. [PMID: 38666492 DOI: 10.1039/d4sm00050a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
We describe a unique method to measure the viscosity of liquids based on the fluid mechanics of thin films. A drop of sample is spread over a substrate by contacting a blade with the drop and moving the blade across the substrate. The thickness of the film is determined by the capillary number, which measures the competition between the viscous force that smears the liquid over the glass slide and the surface tension that resists the deformation of the interface. We show that the length of the smear for a fixed sample volume is also set by capillary number and can be used as a reliable measure of fluid viscosity. The technique is especially suitable for viscosity measurements of biological fluids where viscosities are low and sample sizes are small. The technique can detect small changes in blood viscosity enabling it to be used as a non-specific, screening tool for diseases and therapeutic interventions.
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Affiliation(s)
- Mahrukh A Mir
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India.
| | - Mahesh S Tirumkudulu
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India.
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2
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Baskurt OK, Meiselman HJ. Blood Rheology and Hemodynamics. Semin Thromb Hemost 2023. [PMID: 38122808 DOI: 10.1055/s-0043-1777802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Seminars in Thrombosis and Hemostasis (STH) celebrates 50 years of publishing in 2024. To celebrate this landmark event, STH is republishing some archival material. This manuscript represents the most highly cited paper ever published in STH. The original abstract follows.Blood is a two-phase suspension of formed elements (i.e., red blood cells [RBCs], white blood cells [WBCs], platelets) suspended in an aqueous solution of organic molecules, proteins, and salts called plasma. The apparent viscosity of blood depends on the existing shear forces (i.e., blood behaves as a non-Newtonian fluid) and is determined by hematocrit, plasma viscosity, RBC aggregation, and the mechanical properties of RBCs. RBCs are highly deformable, and this physical property significantly contributes to aiding blood flow both under bulk flow conditions and in the microcirculation. The tendency of RBCs to undergo reversible aggregation is an important determinant of apparent viscosity because the size of RBC aggregates is inversely proportional to the magnitude of shear forces; the aggregates are dispersed with increasing shear forces, then reform under low-flow or static conditions. RBC aggregation also affects the in vivo fluidity of blood, especially in the low-shear regions of the circulatory system. Blood rheology has been reported to be altered in various physiopathological processes: (1) Alterations of hematocrit significantly contribute to hemorheological variations in diseases and in certain extreme physiological conditions; (2) RBC deformability is sensitive to local and general homeostasis, with RBC deformability affected by alterations of the properties and associations of membrane skeletal proteins, the ratio of RBC membrane surface area to cell volume, cell morphology, and cytoplasmic viscosity. Such alterations may result from genetic disorders or may be induced by such factors as abnormal local tissue metabolism, oxidant stress, and activated leukocytes; and (3) RBC aggregation is mainly determined by plasma protein composition and surface properties of RBCs, with increased plasma concentrations of acute phase reactants in inflammatory disorders a common cause of increased RBC aggregation. In addition, RBC aggregation tendency can be modified by alterations of RBC surface properties because of RBC in vivo aging, oxygen-free radicals, or proteolytic enzymes. Impairment of blood fluidity may significantly affect tissue perfusion and result in functional deteriorations, especially if disease processes also disturb vascular properties.
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Affiliation(s)
- Oguz K Baskurt
- Department of Physiology, Akdeniz University Faculty of Medicine, Antalya, Türkiye
| | - Herbert J Meiselman
- Department of Physiology and Biophysics, University of Southern California School of Medicine, Los Angeles, California
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Valeanu L, Andrei S, Stefan G, Robu C, Bute T, Longrois D. Cardiac surgery-associated acute kidney injury and perioperative plasma viscosity: is there a relationship? J Clin Monit Comput 2023; 37:1553-1561. [PMID: 37610523 DOI: 10.1007/s10877-023-01065-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 07/26/2023] [Indexed: 08/24/2023]
Abstract
Plasma viscosity (PV) is a key factor in microcirculatory flow resistance and capillary perfusion during hemodilution, we hypothesized a possible relationship between cardiac surgery-associated acute kidney injury (CSA-AKI) and PV. We conducted a prospective, observational, single-center study on 50 adult cardiac surgery patients with cardiopulmonary bypass (age 64 years, male sex 80%, baseline serum creatinine 1.04 mg/dL). We assessed perioperative characteristics, management, short-term outcomes, blood analysis, PV, serum creatinine, and diuresis. CSA-AKI was identified using KDIGO criteria. Data were collected at 10 time points during the first perioperative week. CSA-AKI occurred in 17 patients (34%): 12 (24%) stage 1, 1 (2%) stage 2, and 4 (8%) stage 3. Most patients (88%) developed CSA-AKI within 48 h post-surgery. Patients with CSA-AKI had higher body mass index (BMI), more frequent chronic kidney disease (CKD), and lower hemoglobin and hematocrit levels. The median baseline PV for the entire cohort was 1.50 cP on EDTA and 1.37 cP on citrate. No significant differences in PV levels were found between patients with CSA-AKI and normal kidney function, both at baseline and at the 48-h. Logistic and Cox regression analyses showed no significant relationship between PV and CSA-AKI. However, CSA-AKI was related to increased BMI, lower hemoglobin and hematocrit levels, and pre-existing CKD. The present study found no significant association between PV and CSA-AKI. Nevertheless, more research is needed to validate this finding and to investigate the role of PV in other clinical settings.
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Affiliation(s)
- Liana Valeanu
- Cardiac Anaesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Disease, "Prof. Dr. C. C. Iliescu", Bucharest, Romania
| | - Stefan Andrei
- "Carol Davila" University of Medicine and Pharmacy, Department of Anesthesia and Intensive Medicine, Bucharest, Romania
| | - Gabriel Stefan
- "Carol Davila" University of Medicine and Pharmacy, Department of Nephrology, Bucharest, Romania.
- "Dr Carol Davila" Teaching Hospital of Nephrology, Bucharest, Romania.
| | - Cornel Robu
- Cardiac Anaesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Disease, "Prof. Dr. C. C. Iliescu", Bucharest, Romania
| | - Teodora Bute
- Cardiac Anaesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Disease, "Prof. Dr. C. C. Iliescu", Bucharest, Romania
| | - Dan Longrois
- CHU "Bichat-Claude Bernard", University of Paris, Department of Anesthesia and Intensive Medicine, Paris, France
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Toprak K, Kaplangöray M, Memioglu T, İnanır M, Biçer A, Demirbağ R, Erdoğdu H. The Relationship Between Nitrate-Induced Headache and -Blood Viscosity: An Observational Prospective Study. J Cardiovasc Pharmacol 2023; 82:162-168. [PMID: 37314267 DOI: 10.1097/fjc.0000000000001443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/27/2023] [Indexed: 06/15/2023]
Abstract
ABSTRACT Nitrates are one of the most prescribed medications in the treatment of angina pectoris today. Headache is the most common side effect of nitrates, and there is limited prospective data on the determinants of this effect. Our aim in this study is to open a foresight window for clinicians in clinical practice by explaining the possible relationship between nitrate-induced headache and whole-blood viscosity (WBV). After coronary revascularization treatment, 869 patients with angina who were prescribed nitrate preparations were divided into groups according to the development of headache or not and categorized according to the 4-grade scale level. Those who had no headache during nitrate use were graded as grade 0, those who felt mild headache were grade 1, those who felt moderate headache were grade 2, and those who described severe headache were graded as grade 3. The groups were compared according to WBV values. A total of 869 participants were included in the study. Most patients (82.1%) experienced some level of headache. Headache severity correlated with both WBV at high shear rate (r = 0.657; P < 0.001) and WBV at low shear rate (r = 0.687; P < 0.001). In multivariate analysis, WBV was determined as an independent predictor of headache experience. WBV predicted nitrate-induced headache with 75% sensitivity and 75% specificity at high shear rate and 77% sensitivity and 77% specificity at low shear rate. WBV seems to be one of the major determinants for nitrate-induced headache. WBV may be a guide for initiating alternative antianginal drugs without prescribing nitrates to the patient to increase patient compliance.
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Affiliation(s)
- Kenan Toprak
- Department of Cardiology, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Mustafa Kaplangöray
- Cardiology Department, Faculty of Medicine, Şeyh Edebali University, Bilecik, Turkey
| | - Tolga Memioglu
- Cardiology Department, Medical Faculty, Bolu Abant Izzet Baysal University, Bolu, Turkey; and
| | - Mehmet İnanır
- Cardiology Department, Medical Faculty, Bolu Abant Izzet Baysal University, Bolu, Turkey; and
| | - Asuman Biçer
- Department of Cardiology, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Recep Demirbağ
- Department of Cardiology, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Hamza Erdoğdu
- Department of Biostatistics, Faculty of Medicine, Harran University, Sanliurfa, Turkey
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Ohno H, Usui T. One-shot reflectance direction field imaging for measuring the surface slope distribution of a capillary wave. APPLIED OPTICS 2023; 62:4321-4326. [PMID: 37706923 DOI: 10.1364/ao.492076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/08/2023] [Indexed: 09/15/2023]
Abstract
A method for measuring a surface slope distribution of a capillary wave is proposed. The method uses an optical imaging system that can capture a one-shot image of a light-reflectance direction field in a two-dimensional image plane. A dispersion relation between the wavelength and frequency of the capillary wave is shown to be obtainable by the imaging system, which agrees well with the theoretical prediction.
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Legros L, Pascale A, Guettier C, Eftekhari P, Merabet YB, Stang M, Bossevot R, Goldschmidt E, Ulusakarya A, Morisset S, Lewin M, Samuel D, Rosmorduc O. Progressive erythrocytosis under lenvatinib treatment in patients with advanced hepatocellular carcinoma. Cancer Chemother Pharmacol 2023; 91:337-344. [PMID: 36961524 PMCID: PMC10068666 DOI: 10.1007/s00280-023-04519-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/03/2023] [Indexed: 03/25/2023]
Abstract
PURPOSE This manuscript reports on the occurrence of early and frequent erythrocytosis in advanced hepatocellular carcinoma (HCC) patients treated with lenvatinib. METHODS A cohort of 23 patients with advanced HCC, treated with this antiangiogenic drug for at least one month, was retrospectively analyzed. RESULTS These patients (82.7% men, median age 58.3, cirrhosis in 60.8%) were treated between October 2019 and September 2020 with lenvatinib, as first-line systemic therapy for 82.6% of them. For 20 patients (87%), an early and significant increase in hemoglobin (Hb) level, up to 1.41 g/dL (p < 0.001) was reported and remained elevated. Ten patients (43.5%), all men, reached erythrocytosis (Hb > 16.5 g/dL), 7 were treated with low-dose aspirin for primary thromboprophylaxis and 2 needed phlebotomy. None underwent thromboembolic complications. A significant Hb decrease was observed after treatment discontinuation (p < 0.05). Erythropoietin (EPO) serum levels also increased, which was attributed to HCC after immunostaining for EPO in liver biopsies. The Naranjo adverse drug reaction probability scale documented the relationship between erythrocytosis and lenvatinib and regression at treatment discontinuation. Erythrocytosis was hypothesized to be a class effect of anti-VEGF therapies, the magnitude of which might depend on the IC50 value of each molecule. CONCLUSION This report documents the frequent occurrence of erythrocytosis during lenvatinib treatment for advanced HCC, likely secondary to EPO secretion by tumor cells through the antiangiogenic activity levatinib. An early and close monitoring of hematologic parameters is, thus, recommended, together with thromboprophylaxis by low-dose aspirin and phlebotomy in case of symptomatic erythrocytosis.
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Affiliation(s)
- Laurence Legros
- Department of Clinical Hematology, Hôpital Bicêtre, AP-HP, 78 Rue du Général Leclerc 94270, Le Kremlin-Bicêtre, France.
- INSERM UMRS-MD-1197, Université Paris-Saclay, Villejuif, France.
- France Intergroupe Syndromes Myéloprolifératifs (FIM), Paris, France.
| | - Alina Pascale
- Hepato-Biliary Department, Hôpital Paul Brousse, AP-HP, 12-14 Avenue Paul Vaillant Couturier, 94800, Villejuif, France
| | - Catherine Guettier
- Hepato-Biliary Department, Hôpital Paul Brousse, AP-HP, 12-14 Avenue Paul Vaillant Couturier, 94800, Villejuif, France
- Anatomic Pathology Department, Hôpital Bicêtre, AP-HP, Le Kremlin-Bicêtre, France
- INSERM U1193, Université Paris-Saclay, Villejuif, France
| | - Pirayeh Eftekhari
- Department of Clinical Hematology, Hôpital Bicêtre, AP-HP, 78 Rue du Général Leclerc 94270, Le Kremlin-Bicêtre, France
| | - Yasmina Ben Merabet
- Hepato-Biliary Department, Hôpital Paul Brousse, AP-HP, 12-14 Avenue Paul Vaillant Couturier, 94800, Villejuif, France
| | - Maryse Stang
- Medical Oncology Department, Hôpital Paul Brousse, AP-HP, Villejuif, France
| | - Rachel Bossevot
- Medical Oncology Department, Hôpital Paul Brousse, AP-HP, Villejuif, France
| | - Emma Goldschmidt
- Medical Oncology Department, Hôpital Paul Brousse, AP-HP, Villejuif, France
| | - Ayhan Ulusakarya
- Medical Oncology Department, Hôpital Paul Brousse, AP-HP, Villejuif, France
| | | | - Maïté Lewin
- Radiology Department, Hôpital Paul Brousse, AP-HP, Villejuif, France
| | - Didier Samuel
- Hepato-Biliary Department, Hôpital Paul Brousse, AP-HP, 12-14 Avenue Paul Vaillant Couturier, 94800, Villejuif, France
- INSERM U1193, Université Paris-Saclay, Villejuif, France
| | - Olivier Rosmorduc
- Hepato-Biliary Department, Hôpital Paul Brousse, AP-HP, 12-14 Avenue Paul Vaillant Couturier, 94800, Villejuif, France.
- INSERM U1193, Université Paris-Saclay, Villejuif, France.
- Sorbonne Université, Paris, France.
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Maung Ye SS, Kim S. A mechanistic model of cross-bridge migration in RBC aggregation and disaggregation. Front Bioeng Biotechnol 2022; 10:1049878. [PMID: 36561046 PMCID: PMC9763627 DOI: 10.3389/fbioe.2022.1049878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
Red blood cells (RBCs) clump together under low flow conditions in a process called RBC aggregation, which can alter RBC perfusion in a microvascular network. As elevated RBC aggregation is commonly associated with cardiovascular and inflammatory diseases, a better understanding of aggregation is essential. Unlike RBC aggregation in polymer solutions which can be well explained by polymer depletion theory, plasma-mediated RBC aggregation has features that best match explanations with cross-bridging mechanisms. Previous studies have demonstrated the dominant role of fibrinogen (Fg) in promoting aggregate formation and recent cell-force spectroscopy (CFS) experiments on interacting RBC doublets in plasma have reported an inverse relationship between disaggregation force and the adhesive contact area between RBCs. This has led investigators to revisit the hypothesis of inter-RBC cross-bridging which involves cross-bridge migration under interfacial tension during the forced disaggregation of RBC aggregates. In this study, we developed the cross-bridge migration model (CBMM) in plasma that mechanistically represents the migrating cross-bridge hypothesis. Transport of mobile Fg cross-bridges (mFg) was calculated using a convection-diffusion transport equation with our novel introduction of convective cross-bridge drift that arises due to intercellular friction. By parametrically transforming the diffusivity of mFg in the CBMM, we were able to match experimental observations of both RBC doublet formation kinematics and RBC doublet disaggregation forces under optical tweezers tension. We found that non-specific cross-bridging promotes spontaneous growth of adhesion area between RBC doublets whereas specific cross-bridging tends to prevent adhesion area growth. Our CBMM was also able to correlate Fg concentration shifts from healthy population blood plasma to SLE (lupus) condition blood plasma with the observed increase in doublet disaggregation forces for the RBC doublets in SLE plasma.
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OpenBloodFlow: A User-Friendly OpenCV-Based Software Package for Blood Flow Velocity and Blood Cell Count Measurement for Fish Embryos. BIOLOGY 2022; 11:biology11101471. [PMID: 36290375 PMCID: PMC9598615 DOI: 10.3390/biology11101471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 09/22/2022] [Accepted: 09/30/2022] [Indexed: 11/16/2022]
Abstract
The transparent appearance of fish embryos provides an excellent assessment feature for observing cardiovascular function in vivo. Previously, methods to conduct vascular function assessment were based on measuring blood-flow velocity using third-party software. In this study, we reported a simple software, free of costs and skills, called OpenBloodFlow, which can measure blood flow velocity and count blood cells in fish embryos for the first time. First, videos captured by high-speed CCD were processed for better image stabilization and contrast. Next, the optical flow of moving objects was extracted from the non-moving background in a frame-by-frame manner. Finally, blood flow velocity was calculated by the Gunner Farneback algorithm in Python. Data validation with zebrafish and medaka embryos in OpenBloodFlow was consistent with our previously published ImageJ-based method. We demonstrated consistent blood flow alterations by either OpenBloodFlow or ImageJ in the dorsal aorta of zebrafish embryos when exposed to either phenylhydrazine or ractopamine. In addition, we validated that OpenBloodFlow was able to conduct precise blood cell counting. In this study, we provide an easy and fully automatic programming for blood flow velocity calculation and blood cell counting that is useful for toxicology and pharmacology studies in fish.
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Duzgun Ergun D, Doganer F, Koc G, Soyocak A, Pastaci Ozsobaci N, Ergun S. The relationship of 50 bp deletion in the promoter region of SOD1 gene with viscosity and trace elements in chronic gastritis with Helicobacter Pylori: A case study. J Trace Elem Med Biol 2022; 73:127039. [PMID: 35868167 DOI: 10.1016/j.jtemb.2022.127039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 05/27/2022] [Accepted: 07/14/2022] [Indexed: 11/29/2022]
Abstract
The aim of research was to evaluate the superoxide dismutase-1 (SOD1) promoter region Insertion/Deletion (Ins/Del) gene variations in chronic gastritis patients infected with Helicobacter pylori (H. pylori), as well as the association between trace elements and viscosity. The study consisted 154 volunteer (18-65 age) with 107 H. pylori (+) and 47 (-). Biochemical parameters, whole blood viscosity (WBV), trace element levels and SOD1 promoter region Ins/Del gene variations were analyzed in blood samples provided from patients. It was determined that zinc (Zn), copper (Cu), iron (Fe) and magnesium (Mg) levels decreased whereas WBV, selenium (Se) and Cu/Zn ratio increased in H.pylori (+) chronic gastritis patients. The SOD1 50 bp Ins/Del gene polymorphism genotype and allele frequency distributions in H.pylori (+) and (-) chronic gastritis patients were not statistically significant. It was reported that Zn level decreased in H.pylori (+) patients with a deletion in at least one locus (Ins/Del+Del/Del), Se level increased. It has been found that the presence of H.pylori affects trace element metabolism and biochemical parameters in chronic gastritis patients. The 50 bp Ins/Del polymorphism in the promoter region of the SOD1 gene was shown to have no association with chronic gastritis. Investigation of different variants of the SOD1 gene in patients with gastritis will contribute to the determination of its role in the pathogenesis of the disease.
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Affiliation(s)
- D Duzgun Ergun
- Department of Biophysics, Faculty of Medicine, Istanbul Aydin University, Istanbul, Turkey.
| | - F Doganer
- Department of Biotechnology, Faculty of Arts and Science, Aksaray University, Aksaray, Turkey
| | - G Koc
- Department of Medical Biology, Faculty of Medicine, Istanbul Aydin University, Istanbul, Turkey
| | - A Soyocak
- Department of Medical Biology, Faculty of Medicine, Istanbul Aydin University, Istanbul, Turkey
| | - N Pastaci Ozsobaci
- Department of Biophysics, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - S Ergun
- Department of General Surgery, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey; Department of General Surgery, Istanbul Avcılar Murat Koluk State Hospital, Istanbul, Turkey
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Valeanu L, Andrei S, Ginghina C, Robu C, Ciurciun A, Balan C, Stefan M, Stoian A, Stanculea I, Cheta A, Dima L, Stiru O, Filipescu D, Bubenek-Turconi SI, Longrois D. Perioperative trajectory of plasma viscosity: a prospective, observational, exploratory study in cardiac surgery. Microcirculation 2022; 29:e12777. [PMID: 35837796 DOI: 10.1111/micc.12777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 06/01/2022] [Accepted: 07/11/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Plasma viscosity is one of the critical factors that regulate microcirculatory flow but has received scant research attention. The main objective of this study was to evaluate plasma viscosity in cardiac surgery with respect to perioperative trajectory, main determinants and impact on outcome. METHODS Prospective, single center, observational study, including 50 adult patients undergoing cardiac surgery with cardiopulmonary bypass between 1 February 2020 - 31 May 2021. Clinical perioperative characteristics, short term outcome, standard blood analysis, plasma viscosity, total proteins and fibrinogen concentrations were recorded at ten distinct time points during the first perioperative week. RESULTS The longitudinal analysis showed that plasma viscosity is strongly influenced by proteins and measurement time points. Plasma viscosity showed a coefficient of variation of 11.3 +/- 1.08 for EDTA and 12.1 +/-2.1 for citrate, similarly to total proteins and hemoglobin, but significantly lower than fibrinogen (p<0.001). Plasma viscosity had lower percentage changes compared to hemoglobin (RANOVA, p<0.001), fibrinogen (RANOVA, p<0.001), and total proteins (RANOVA, p<0.001). The main determinant of plasma viscosity was protein concentrations. No association with outcome was found, but the study may have been underpowered to detect it. CONCLUSION Plasma viscosity had a low coefficient of variation and low perioperative changes, suggesting tight regulation. Studies linking plasma viscosity with outcome would require large patient cohorts.
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Affiliation(s)
- Liana Valeanu
- Cardiac Anesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania
| | - Stefan Andrei
- Anesthesiology and Intensive Care Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, Bucharest, Romania.,Anesthesiology and Critical Care Department, Dijon Bourgogne University Hospital, 2 Bd Maréchal de Lattre de Tassigny, Dijon, France
| | - Carmen Ginghina
- Cardiology Department III, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania.,Cardiology Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, Bucharest, Romania
| | - Cornel Robu
- Cardiac Anesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania
| | - Adrian Ciurciun
- Cardiac Anesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania
| | - Cosmin Balan
- Cardiac Anesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania
| | - Mihai Stefan
- Cardiac Anesthesiology and Intensive Care Department II, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania
| | - Anca Stoian
- Cardiac Anesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania
| | - Iulia Stanculea
- Cardiac Anesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania
| | - Andreea Cheta
- Cardiac Anesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania
| | - Laura Dima
- Clinical Medical Laboratory, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania
| | - Ovidiu Stiru
- Cardiovascular Surgery Department II, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania.,Cardiovascular Surgery Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, Bucharest, Romania
| | - Daniela Filipescu
- Anesthesiology and Intensive Care Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, Bucharest, Romania.,Cardiac Anesthesiology and Intensive Care Department II, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania
| | - Serban-Ion Bubenek-Turconi
- Cardiac Anesthesiology and Intensive Care Department I, Emergency Institute for Cardiovascular Diseases Prof. dr. C. C. Iliescu, 258 Fundeni Road, Bucharest, Romania.,Anesthesiology and Intensive Care Department, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, Bucharest, Romania
| | - Dan Longrois
- Anesthesiology and Intensive Care Department, Bichat Claude-Bernard Hospital, Assistance Publique-Hopitaux de Paris - Nord, University of Paris, INSERM U1148, 46 Henri Huchard Street, Paris, France
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Zeng Y, Hao J, Zhang J, Jiang L, Youn S, Lu G, Yan D, Kang H, Sun Y, Shung KK, Shen K, Zhou Q. Manipulation and Mechanical Deformation of Leukemia Cells by High-Frequency Ultrasound Single Beam. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2022; 69:1889-1897. [PMID: 35468061 PMCID: PMC9753557 DOI: 10.1109/tuffc.2022.3170074] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Ultrasound single-beam acoustic tweezer system has attracted increasing attention in the field of biomechanics. Cell biomechanics play a pivotal role in leukemia cell functions. To better understand and compare the cell mechanics of the leukemia cells, herein, we fabricated an acoustic tweezer system in-house connected with a 50-MHz high-frequency cylinder ultrasound transducer. Selected leukemia cells (Jurkat, K562, and MV-411 cells) were cultured, trapped, and manipulated by high-frequency ultrasound single beam, which was transmitted from the ultrasound transducer without contacting any cells. The relative deformability of each leukemia cell was measured, characterized, and compared, and the leukemia cell (Jurkat cell) gaining the highest deformability was highlighted. Our results demonstrate that the high-frequency ultrasound single beam can be utilized to manipulate and characterize leukemia cells, which can be applied to study potential mechanisms in the immune system and cell biomechanics in other cell types.
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Orr A, Gualdieri R, Cossette ML, Shafer ABA, Stotesbury T. Whole bovine blood use in forensic research: Sample preparation and storage considerations. Sci Justice 2021; 61:214-220. [PMID: 33985669 DOI: 10.1016/j.scijus.2021.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 02/18/2021] [Accepted: 02/21/2021] [Indexed: 10/22/2022]
Abstract
Mammalian whole blood sources are often used for forensic research and training when human samples cannot be sourced. While porcine, ovine and equine blood have been shown to be viable alternatives to whole human blood for forensic purposes, procurement can still pose a problem, especially for smaller and remote institutions. This work explores the use of whole bovine blood for basic bloodstain simulation. Sample preparation through the addition of ACD-A anticoagulant was optimized and storability was explored. Viscosity, surface tension, density, and packed cell volume, four fluid properties relevant to bloodstain pattern analysis, were monitored over four days and in two temperature conditions. Linear mixed models accounting for variation in the donor demonstrated that these fluid properties of the bovine blood changed predictably over time and with temperature. Whole bovine blood with 12.5% v/v ACD-A was found to be viable for use in basic bloodstain simulation at ambient and physiological temperature.
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Affiliation(s)
- Amanda Orr
- Environmental and Life Sciences Graduate Program, Trent University, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
| | - Rebecca Gualdieri
- Forensic Science Undergraduate Program, Trent University, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
| | - Marie-Laurence Cossette
- Environmental and Life Sciences Graduate Program, Trent University, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada; Forensic Science Undergraduate Program, Trent University, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
| | - Aaron B A Shafer
- Environmental and Life Sciences Graduate Program, Trent University, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada; Forensic Science Undergraduate Program, Trent University, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada
| | - Theresa Stotesbury
- Forensic Science Undergraduate Program, Trent University, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada; Faculty of Science, Forensic Science, Ontario Tech University, 2000 Simcoe St N, Oshawa, ON L1G 0C5, Canada.
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13
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Abstract
Oxygen (O2) delivery, which is fundamental to supporting patients with critical illness, is a function of blood O2 content and flow. This article reviews red blood cell (RBC) physiology and dysfunction relevant to disordered O2 delivery in the critically ill. Flow is the focus of O2 delivery regulation: O2 content is relatively fixed, whereas flow fluctuates greatly. Thus, blood flow volume and distribution vary to maintain coupling between O2 delivery and demand. This article reviews conventional RBC physiology influencing O2 delivery and introduces a paradigm for O2 delivery homeostasis based on coordinated gas transport and vascular signaling by RBCs.
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Affiliation(s)
- Stephen Rogers
- Department of Pediatrics, Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, HSF III, 8th Floor, 670 West Baltimore Street, Baltimore, MD 21204, USA
| | - Allan Doctor
- Department of Pediatrics, Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, HSF III, 8th Floor, 670 West Baltimore Street, Baltimore, MD 21204, USA.
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14
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Liu HC, Kijanka P, Urban MW. Optical coherence tomography for evaluating capillary waves in blood and plasma. BIOMEDICAL OPTICS EXPRESS 2020; 11:1092-1106. [PMID: 32206401 PMCID: PMC7041467 DOI: 10.1364/boe.382819] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 05/18/2023]
Abstract
Capillary waves are associated with fluid mechanical properties. Optical coherence tomography (OCT) has previously been used to determine the viscoelasticity of soft tissues or cornea. Here we report that OCT was able to evaluate phase velocities of capillary waves in fluids. The capillary waves of water, porcine whole blood and plasma on the interfacial surface, air-fluid in this case, are discussed in theory, and phase velocities of capillary waves were estimated by both our OCT experiments and theoretical calculations. Our experiments revealed highly comparable results with theoretical calculations. We concluded that OCT would be a promising tool to evaluate phase velocities of capillary waves in fluids. The methods described in this study could be applied to determine surface tensions and viscosities of fluids for differentiating hematological diseases in the future potential biological applications.
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Affiliation(s)
- Hsiao-Chuan Liu
- Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
| | - Piotr Kijanka
- Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
- Department of Robotics and Mechatronics, AGH University of Science and Technology, Al. Mickiewicza 30, Krakow 30-059, Poland
| | - Matthew W. Urban
- Department of Radiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
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15
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Greenlee JD, King MR. Engineered fluidic systems to understand lymphatic cancer metastasis. BIOMICROFLUIDICS 2020; 14:011502. [PMID: 32002106 PMCID: PMC6986954 DOI: 10.1063/1.5133970] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 01/12/2020] [Indexed: 05/03/2023]
Abstract
The majority of all cancers metastasize initially through the lymphatic system. Despite this, the mechanisms of lymphogenous metastasis remain poorly understood and understudied compared to hematogenous metastasis. Over the past few decades, microfluidic devices have been used to model pathophysiological processes and drug interactions in numerous contexts. These devices carry many advantages over traditional 2D in vitro systems, allowing for better replication of in vivo microenvironments. This review highlights prominent fluidic devices used to model the stages of cancer metastasis via the lymphatic system, specifically within lymphangiogenesis, vessel permeability, tumor cell chemotaxis, transendothelial migration, lymphatic circulation, and micrometastases within the lymph nodes. In addition, we present perspectives for the future roles that microfluidics might play within these settings and beyond.
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Affiliation(s)
- Joshua D. Greenlee
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235, USA
| | - Michael R. King
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235, USA
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16
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Abstract
The centrifuge is the gold standard for lab-based sample processing. While extremely efficient and robust, centrifuges are seldom used in the field due to the high-power requirements, size, and operational complexity. The lack of viable alternatives for remote sample collection has crippled the ability for mobile practitioners in human and animal medicine to reliably collect blood samples from their patients. There is no truly resource-independent solution that is able to perform highly efficient blood-plasma separation. Here, we describe our initial efforts in developing the High Efficiency Rapid Magnetic Erythrocyte Separator (H.E.R.M.E.S) sleeve, an apparatus that uses a magnetic bead-based separation assay in a scaled-up form factor to achieve highly efficient separation of erythrocytes from plasma within a short amount of time. The sleeve is easy-to-use, is completely resource independent, and achieves highly efficient separation in sample volumes as large as 1 mL by means of a unique mixing scheme. We demonstrate the performance of the sleeve with human blood samples and compare it against conventional end-over-end mixing.
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Affiliation(s)
- S Vemulapati
- Sibley School of Mechanical and Aerospace Engineering , Cornell University , Ithaca , New York 14853 , United States
| | - D Erickson
- Sibley School of Mechanical and Aerospace Engineering , Cornell University , Ithaca , New York 14853 , United States.,Division of Nutritional Sciences , Cornell University , Ithaca , New York 14853 , United States
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17
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Kranen RW, Lambooij E, Veerkamp CH, Van Kuppevelt TH, Veerkamp JH. Haemorrhages in muscles of broiler chickens. WORLD POULTRY SCI J 2019. [DOI: 10.1079/wps20000009] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- R. W. Kranen
- Institute for Animal Science and Health, ID-Lelystad, Lelystad
| | - E. Lambooij
- Institute for Animal Science and Health, ID-Lelystad, Lelystad
| | | | - T. H. Van Kuppevelt
- Department of Biochemistry, Faculty of Medical Sciences, University of Nijmegen, The Netherlands
| | - J. H. Veerkamp
- Department of Biochemistry, Faculty of Medical Sciences, University of Nijmegen, The Netherlands
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18
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Martínez-Vieyra V, Rodríguez-Varela M, García-Rubio D, De la Mora-Mojica B, Méndez-Méndez J, Durán-Álvarez C, Cerecedo D. Alterations to plasma membrane lipid contents affect the biophysical properties of erythrocytes from individuals with hypertension. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2019; 1861:182996. [PMID: 31150634 DOI: 10.1016/j.bbamem.2019.05.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/15/2019] [Accepted: 05/23/2019] [Indexed: 12/17/2022]
Abstract
Genetic and environmental factors may contribute to high blood pressure, which is termed essential hypertension. Hypertension is a major independent risk factor for cardiovascular disease, stroke and renal failure; thus, elucidation of the etiopathology of hypertension merits further research. We recently reported that the platelets and neutrophils of patients with hypertension exhibit altered biophysical characteristics. In the present study, we assessed whether the major structural elements of erythrocyte plasma membranes are altered in individuals with hypertension. We compared the phospholipid (phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, sphingosine) and cholesterol contents of erythrocytes from individuals with hypertension (HTN) and healthy individuals (HI) using LC/MS-MS. HTN erythrocytes contained higher phosphatidylcholine, phosphatidylethanolamine and phosphatidylserine contents and a lower cholesterol content than HI erythrocytes. Furthermore, atomic force microscopy revealed important morphological changes in HTN erythrocytes, which reflected the increased membrane fragility and fluidity and higher levels of oxidative stress observed in HTN erythrocytes using spectrophotofluorometry, flow cytometry and spectrometry. This study reveals that alterations to the lipid contents of erythrocyte plasma membranes occur in hypertension, and these alterations in lipid composition result in morphological and physiological abnormalities that modify the dynamic properties of erythrocytes and contribute to the pathophysiology of hypertension.
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Affiliation(s)
- Vette Martínez-Vieyra
- Laboratorio de Hematobiología, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, CDMX, Mexico
| | - Mario Rodríguez-Varela
- Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, CDMX, Mexico
| | - Diana García-Rubio
- Laboratorio de Hematobiología, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, CDMX, Mexico
| | | | | | - Carlos Durán-Álvarez
- Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, CDMX, Mexico
| | - Doris Cerecedo
- Laboratorio de Hematobiología, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, CDMX, Mexico.
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19
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Kang H, Jang I, Song S, Bae SC. Development of a Paper-Based Viscometer for Blood Plasma Using Colorimetric Analysis. Anal Chem 2019; 91:4868-4875. [DOI: 10.1021/acs.analchem.9b00624] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hyunwoong Kang
- Department of Mechanical Engineering, Hanyang University, Seoul 04763, Korea
| | - Ilhoon Jang
- Institute of Nano Science and Technology, Hanyang University, Seoul 04763, Korea
| | - Simon Song
- Department of Mechanical Engineering, Hanyang University, Seoul 04763, Korea
- Institute of Nano Science and Technology, Hanyang University, Seoul 04763, Korea
| | - Sang-Cheol Bae
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul 04763, Korea
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20
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Eguchi M, Taguchi Y, Nagasaka Y. Non-contact optical hand-held viscosity sensor with incident angle and irradiation timing controls. OPTICS EXPRESS 2018; 26:34070-34080. [PMID: 30650836 DOI: 10.1364/oe.26.034070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 12/08/2018] [Indexed: 06/09/2023]
Abstract
This paper proposes a novel optical hand-held viscosity sensor based on a laser-induced capillary wave method that can be used as a noncontact and quick in situ viscometry of liquid samples. Incident angle and irradiation timing control systems were integrated into the hand-held viscosity sensor to robustly measure viscosity by detecting the optical signal in a hand-held condition. We report the stability evaluation of these systems under the hand-held condition. Finally, the proposed sensor's applicability to the hand-held viscometer was confirmed by measuring the viscosity distribution that the temperature gradient of the liquid sample caused.
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21
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Acute hyperviscosity: syndromes and management. Blood 2018; 132:1379-1385. [PMID: 30104220 DOI: 10.1182/blood-2018-06-846816] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 08/11/2018] [Indexed: 12/20/2022] Open
Abstract
Plasma hyperviscosity is a rare complication of both monoclonal and polyclonal disorders associated with elevation of immunoglobulins. Asymptomatic patients with an elevation in the serum viscosity do not require plasma exchange, and the majority will have other indications for therapeutic intervention. For patients with hemorrhagic or central nervous system manifestations, plasma exchange is the therapy of choice and is relatively safe. Viscosity measurements are not required to initiate therapy if the index of suspicion is high and the clinical presentation is typical. However, patients should have a sample sent for confirmation of the diagnosis. Whole-blood hyperviscosity is seen in patients with extreme elevation of the red cell and white cell count. Phlebotomy of patients with primary and secondary elevation of the red cell count is a well-established therapy.
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22
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Uluc N, Unlu MB, Gulsen G, Erkol H. Extended photoacoustic transport model for characterization of red blood cell morphology in microchannel flow. BIOMEDICAL OPTICS EXPRESS 2018; 9:2785-2809. [PMID: 30258691 PMCID: PMC6154189 DOI: 10.1364/boe.9.002785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/21/2018] [Accepted: 04/11/2018] [Indexed: 06/08/2023]
Abstract
The dynamic response behavior of red blood cells holds the key to understanding red blood cell related diseases. In this regard, an understanding of the physiological functions of erythrocytes is significant before focusing on red blood cell aggregation in the microcirculatory system. In this work, we present a theoretical model for a photoacoustic signal that occurs when deformed red blood cells pass through a microfluidic channel. Using a Green's function approach, the photoacoustic pressure wave is obtained analytically by solving a combined Navier-Stokes and photoacoustic equation system. The photoacoustic wave expression includes determinant parameters for the cell deformability such as plasma viscosity, density, and red blood cell aggregation, as well as involving laser parameters such as beamwidth, pulse duration, and repetition rate. The effects of aggregation on blood rheology are also investigated. The results presented by this study show good agreements with the experimental ones in the literature. The comprehensive analytical solution of the extended photoacoustic transport model including a modified Morse type potential function sheds light on the dynamics of aggregate formation and demonstrates that the profile of a photoacoustic pressure wave has the potential for detecting and characterizing red blood cell aggregation.
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Affiliation(s)
- Nasire Uluc
- Department of Physics, Bogazici University, 34342 Bebek, Istanbul,
Turkey
| | - Mehmet Burcin Unlu
- Department of Physics, Bogazici University, 34342 Bebek, Istanbul,
Turkey
- Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo 060-8648,
Japan
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA,
USA
| | - Gultekin Gulsen
- Department of Radiological Sciences, University of California, Irvine, CA,
USA
| | - Hakan Erkol
- Department of Physics, Bogazici University, 34342 Bebek, Istanbul,
Turkey
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23
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Yang HL, Korivi M, Lin MK, Chang HCW, Wu CR, Lee MS, Chen WTL, Hseu YC. Antihemolytic and antioxidant properties of pearl powder against 2,2′-azobis(2-amidinopropane) dihydrochloride-induced hemolysis and oxidative damage to erythrocyte membrane lipids and proteins. J Food Drug Anal 2017; 25:898-907. [PMID: 28987367 PMCID: PMC9328879 DOI: 10.1016/j.jfda.2016.10.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 10/27/2016] [Accepted: 10/30/2016] [Indexed: 02/02/2023] Open
Abstract
Pearl powder, a well-known traditional mineral medicine, is reported to be used for well-being and to treat several diseases from centuries in Taiwan and China. We investigated the in vitro antihemolytic and antioxidant properties of pearl powder that could protect erythrocytes against 2,2′-azobis(2-amidinopropane) dihydrochloride (AAPH)-induced oxidative damage to membrane proteins/lipids. Human erythrocytes were incubated with different concentrations of pearl powder (50–200 μg/mL) for 30 minutes and then exposed to AAPH for 2–6 hours. We found that AAPH alone time dependently increased the oxidative hemolysis of erythrocytes, while pearl powder pretreatment substantially inhibited the hemolysis in a concentration-/time-dependent manner. AAPH-induced oxidative damage to erythrocyte membrane lipids was evidenced by the elevated malondialdehyde (MDA) levels. However, pearl powder remarkably inhibited the malondialdehyde formation, and the 200 μg/mL concentration showed almost similar malondialdehyde values to the control. Furthermore, pearl powder suppressed the AAPH-induced high-molecular-weight protein formation and concomitantly increased the low-molecular-weight proteins in erythrocytes. Antioxidant potential that was measured as superoxide dismutase activity and glutathione content was significantly dropped by AAPH incubation, which suggests the vulnerability of erythrocytes to AAPH-induced oxidative stress. Noteworthy, erythrocytes pretreated with pearl powder showed restored superoxide dismutase activity and glutathione levels against AAPH-induced loss. Our findings conclude that pearl powder attenuate free radical-induced hemolysis and oxidative damage to erythrocyte membrane lipids/proteins. The potent antioxidant property of pearl powder may offer protection from free radical-related diseases.
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Affiliation(s)
- Hsin-Ling Yang
- Institute of Nutrition, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung,
Taiwan
| | - Mallikarjuna Korivi
- Institute of Nutrition, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung,
Taiwan
| | - Ming-Kuem Lin
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung,
Taiwan
| | | | - Chi-Rei Wu
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung,
Taiwan
| | - Meng-Shiou Lee
- School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung,
Taiwan
| | - William Tzu-Liang Chen
- Division of Colorectal Surgery, Department of Surgery, Center of Minimally Invasive Surgery, China Medical University Hospital, China Medical University, Taichung,
Taiwan
- College of Medicine, China Medical University, Taichung,
Taiwan
- Corresponding authors. College of Medicine, China Medical University, 91 Hsueh Shih Road, Taichung 40402, Taiwan (W.T.-L. Chen); Department of Cosmeceutics, College of Biopharmaceutical and Food Sciences China Medical University, 91 Hsueh Shih Road, Taichung 40402, Taiwan (Y.-C. Hseu). E-mail addresses: (W.T.-L. Chen), (Y.-C. Hseu)
| | - You-Cheng Hseu
- Department of Health and Nutrition Biotechnology, Asia University, Taichung,
Taiwan
- Department of Cosmeceutics, College of Biopharmaceutical and Food Sciences, China Medical University, Taichung,
Taiwan
- Corresponding authors. College of Medicine, China Medical University, 91 Hsueh Shih Road, Taichung 40402, Taiwan (W.T.-L. Chen); Department of Cosmeceutics, College of Biopharmaceutical and Food Sciences China Medical University, 91 Hsueh Shih Road, Taichung 40402, Taiwan (Y.-C. Hseu). E-mail addresses: (W.T.-L. Chen), (Y.-C. Hseu)
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24
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Stotesbury T, Illes M, Wilson P, Vreugdenhil AJ. The application of silicon sol–gel technology to forensic blood substitute development: Investigation of the spreading dynamics onto a paper surface. Forensic Sci Int 2017; 275:308-313. [DOI: 10.1016/j.forsciint.2017.03.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 03/23/2017] [Accepted: 03/24/2017] [Indexed: 11/29/2022]
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25
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Brinkmann C, Bizjak DA, Bischof S, Latsch J, Brixius K, Bloch W, Grau M. Endurance training alters enzymatic and rheological properties of red blood cells (RBC) in type 2 diabetic men during in vivo RBC aging. Clin Hemorheol Microcirc 2017; 63:173-84. [PMID: 26410865 DOI: 10.3233/ch-151957] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study examines the effects of endurance training on red blood cells (RBC) in seventeen non-insulin-dependent type 2 diabetic men with a special focus on in vivo RBC aging. Venous blood was collected pre- and post-training at rest. RBC from whole blood and RBC separated according to cell age by density-gradient centrifugation were analyzed. RBC deformability was measured by ektacytometry. Immunohistochemical staining was performed to quantify the RBC-nitric oxide (NO) synthase activation (RBC-NOSSer1177) because RBC-NOS-produced NO can contribute to increased RBC deformability. The proportion of "young" RBC was significantly higher post-training. RBC deformability of all RBC (RBC of all ages) remained unaltered post-training. During RBC aging, RBC deformability decreased in both pre- and post-training. However, the training significantly increased RBC deformability in "young" and reduced their deformability in aging RBC. RBC-NOS activation remained unaltered in all RBC post-training. It tendentially increased in aging RBC pre-training, but did not change during aging post-training. The training significantly reduced RBC-NOS activation in "old" RBC. Endurance training may improve the RBC system (higher amount of "young" RBC which are more deformable). It remains speculative whether changes in older RBC (reduced RBC-NOS activation and deformability) could lead to more rapid elimination of aged RBC.
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Affiliation(s)
- C Brinkmann
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Germany
| | - D A Bizjak
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Germany
| | - S Bischof
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Germany
| | - J Latsch
- Department of Preventive and Rehabilitative Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Germany
| | - K Brixius
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Germany
| | - W Bloch
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Germany
| | - M Grau
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Germany
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26
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Stotesbury T, Illes M, Wilson P, Vreugdenhil AJ. The application of silicon sol–gel technology to forensic blood substitute development: Mimicking aspects of whole human blood rheology. Forensic Sci Int 2017; 270:12-19. [DOI: 10.1016/j.forsciint.2016.11.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 11/08/2016] [Indexed: 10/20/2022]
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27
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Black JJ, Yu FTH, Schnatz RG, Chen X, Villanueva FS, Pacella JJ. Effect of Thrombus Composition and Viscosity on Sonoreperfusion Efficacy in a Model of Micro-Vascular Obstruction. ULTRASOUND IN MEDICINE & BIOLOGY 2016; 42:2220-31. [PMID: 27207018 PMCID: PMC4983511 DOI: 10.1016/j.ultrasmedbio.2016.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 03/28/2016] [Accepted: 04/06/2016] [Indexed: 05/11/2023]
Abstract
Distal embolization of micro-thrombi during stenting for myocardial infarction causes micro-vascular obstruction (MVO). We have previously shown that sonoreperfusion (SRP), a microbubble (MB)-mediated ultrasound (US) therapy, resolves MVO from venous micro-thrombi in vitro in saline. However, blood is more viscous than saline, and arterial thrombi that embolize during stenting are mechanically distinct from venous clot. Therefore, we tested the hypothesis that MVO created with arterial micro-thrombi are more resistant to SRP therapy compared with venous micro-thrombi, and higher viscosity further increases the US requirement for effective SRP in an in vitro model of MVO. Lipid MBs suspended in plasma with adjusted viscosity (1.1 cP or 4.0 cP) were passed through tubing bearing a mesh with 40-μm pores to simulate a micro-vascular cross-section; upstream pressure reflected thrombus burden. To simulate MVO, the mesh was occluded with either arterial or venous micro-thrombi to increase upstream pressure to 40 mmHg ± 5 mmHg. Therapeutic long-tone-burst US was delivered to the occluded area for 20 min. MB activity was recorded with a passive cavitation detector. MVO caused by arterial micro-thrombi at either blood or plasma viscosity resulted in less effective SRP therapy compared to venous thrombi. Higher viscosity further reduced the effectiveness of SRP therapy. The passive cavitation detector showed a decrease in inertial cavitation when viscosity was increased, while stable cavitation was affected in a more complex manner. Overall, these data suggest that arterial thrombi may require higher acoustic pressure US than venous thrombi to achieve similar SRP efficacy; increased viscosity decreases SRP efficacy; and both inertial and stable cavitation are implicated in observed SRP efficacy.
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Affiliation(s)
- John J Black
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Francois T H Yu
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Rick G Schnatz
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Xucai Chen
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Flordeliza S Villanueva
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - John J Pacella
- Center for Ultrasound Molecular Imaging and Therapeutics, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
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28
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Farag MR, Alagawany M, Tufarelli V. In vitro antioxidant activities of resveratrol, cinnamaldehyde and their synergistic effect against cyadox-induced cytotoxicity in rabbit erythrocytes. Drug Chem Toxicol 2016; 40:196-205. [DOI: 10.1080/01480545.2016.1193866] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Mayada Ragab Farag
- Forensic Medicine and Toxicology Department, Veterinary Medicine Faculty, Zagazig University, Zagazig, Egypt,
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt, and
| | - Vincenzo Tufarelli
- Department of Emergency and Organ Transplantation (DETO), Section of Veterinary Science and Animal Production, University of Bari ‘Aldo Moro’, Valenzano, Bari, Italy
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Vadivukkarasi S, Arunambiga S, Anila A, Ganapathy S. Protective Effect of Alkaloids from Amaranthus Viridis Linn. Against Hydrogen Peroxide Induced Oxidative Damage in Human Erythrocytes (RBC). ACTA ACUST UNITED AC 2015. [DOI: 10.17352/ijcem.000011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
PURPOSE OF REVIEW Oxygen (O2) delivery, the maintenance of which is fundamental to supporting those with critical illness, is a function of blood O2 content and flow. Here, we review red blood cell (RBC) physiology relevant to disordered O2 delivery in the critically ill. RECENT FINDINGS Flow (rather than content) is the focus of O2 delivery regulation. O2 content is relatively fixed, whereas flow fluctuates by several orders of magnitude. Thus, blood flow volume and distribution vary to maintain coupling between O2 delivery and demand. The trapping, processing and delivery of nitric oxide (NO) by RBCs has emerged as a conserved mechanism through which regional blood flow is linked to biochemical cues of perfusion sufficiency. We will review conventional RBC physiology that influences O2 delivery (O2 affinity & rheology) and introduce a new paradigm for O2 delivery homeostasis based on coordinated gas transport and vascular signaling by RBCs. SUMMARY By coordinating vascular signaling in a fashion that links O2 and NO flux, RBCs couple vessel caliber (and thus blood flow) to O2 need in tissue. Malfunction of this signaling system is implicated in a wide array of pathophysiologies and may be explanatory for the dysoxia frequently encountered in the critical care setting.
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Donadello K, Piagnerelli M, Reggiori G, Gottin L, Scolletta S, Occhipinti G, Zouaoui Boudjeltia K, Vincent JL. Reduced red blood cell deformability over time is associated with a poor outcome in septic patients. Microvasc Res 2015; 101:8-14. [PMID: 26002544 DOI: 10.1016/j.mvr.2015.05.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 05/08/2015] [Accepted: 05/12/2015] [Indexed: 01/03/2023]
Abstract
BACKGROUND To investigate changes in red blood cell (RBC) rheology over time in critically ill patients with sepsis and their relationship with outcome. METHODS In this prospective, non-interventional study, RBC rheology was assessed using the Laser-assisted Optical Rotational Cell Analyzer in a convenience sample of intensive care unit (ICU) patients with (n=64) and without (n=160) sepsis. Results were compared to measures in healthy volunteers (n=20). RBC rheology was also assessed on days 1 and 3 of the ICU stay in 32 of the non-septic and 19 of the septic patients. RBC deformability was determined by the elongation index (EI) in relation to the shear stress (0.3 to 50Pa) applied to the RBC membrane. An aggregation index (AI) was assessed simultaneously with the same device. RESULTS The ICU mortality rate of the septic patients was 31%. RBC deformability was already reduced in septic patients at ICU admission, an effect that persisted during the study period and worsened in the non-survivors for the large majority of shear stresses studied (e.g., EI for 50Pa of shear stress was 0.527±0.064 in non-survivors vs. 0.566±0.034 in survivors, p<0.05). These changes were not observed in non-septic patients. The AI was more elevated in septic than in non-septic patients at ICU admission, but had no prognostic value. CONCLUSIONS Alterations in RBC rheology, including reduced deformability and increased aggregation, occur early in septic patients and reductions in RBC deformability over time are associated with a poor outcome.
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Affiliation(s)
- Katia Donadello
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Michael Piagnerelli
- Department of Intensive Care, CHU-Charleroi, Université Libre de Bruxelles, 6000 Charleroi, Belgium; Experimental Medicine Laboratory, CHU-Charleroi, ULB 222 Unit, Université Libre de Bruxelles, 6110 Montigny-Le-Tilleul, Belgium
| | - Giulia Reggiori
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Leonardo Gottin
- Department of Intensive Care, Policlinico Universitario G.B.Rossi, Università degli Studi di Verona, Verona, Italy
| | - Sabino Scolletta
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Giovanna Occhipinti
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Karim Zouaoui Boudjeltia
- Experimental Medicine Laboratory, CHU-Charleroi, ULB 222 Unit, Université Libre de Bruxelles, 6110 Montigny-Le-Tilleul, Belgium
| | - Jean-Louis Vincent
- Department of Intensive Care, Erasme Hospital, Université Libre de Bruxelles, 1070 Brussels, Belgium.
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Yang WH, Heine O, Pauly S, Kim P, Bloch W, Mester J, Grau M. Rapid rather than gradual weight reduction impairs hemorheological parameters of Taekwondo athletes through reduction in RBC-NOS activation. PLoS One 2015; 10:e0123767. [PMID: 25875585 PMCID: PMC4396988 DOI: 10.1371/journal.pone.0123767] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 02/21/2015] [Indexed: 11/23/2022] Open
Abstract
Purpose Rapid weight reduction is part of the pre-competition routine and has been shown to negatively affect psychological and physiological performance of Taekwondo (TKD) athletes. This is caused by a reduction of the body water and an electrolyte imbalance. So far, it is unknown whether weight reduction also affects hemorheological properties and hemorheology-influencing nitric oxide (NO) signaling, important for oxygen supply to the muscles and organs. Methods For this purpose, ten male TKD athletes reduced their body weight by 5% within four days (rapid weight reduction, RWR). After a recovery phase, athletes reduced body weight by 5% within four weeks (gradual weight reduction, GWR). Each intervention was preceded by two baseline measurements and followed by a simulated competition. Basal blood parameters (red blood cell (RBC) count, hemoglobin concentration, hematocrit, mean corpuscular volume, mean cellular hemoglobin and mean cellular hemoglobin concentration), RBC-NO synthase activation, RBC nitrite as marker for NO synthesis, RBC deformability and aggregation parameters were determined on a total of eight investigation days. Results Basal blood parameters were not affected by the two interventions. In contrast to GWR, RWR decreased activation of RBC-NO synthase, RBC nitrite, respective NO concentration and RBC deformability. Additionally, RWR increased RBC aggregation and disaggregation threshold. Conclusion The results point out that a rapid weight reduction negatively affects hemorheological parameters and NO signaling in RBC which might limit performance capacity. Thus, GWR should be preferred to achieve the desired weight prior to a competition to avoid these negative effects.
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Affiliation(s)
- Woo Hwi Yang
- Institute of Training Science and Sport Informatics, German Sport University Cologne, Cologne, Germany
- Olympic Training Centre Rhineland, Cologne, Germany
| | - Oliver Heine
- Olympic Training Centre Rhineland, Cologne, Germany
| | - Sebastian Pauly
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
| | - Pilsang Kim
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
- German Research Centre for Elite Sports, German Sport University, Cologne, Germany
| | - Joachim Mester
- Institute of Training Science and Sport Informatics, German Sport University Cologne, Cologne, Germany
- German Research Centre for Elite Sports, German Sport University, Cologne, Germany
| | - Marijke Grau
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
- German Research Centre for Elite Sports, German Sport University, Cologne, Germany
- * E-mail:
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[Hyperviscosity syndrome]. Rev Med Interne 2015; 36:588-95. [PMID: 25778852 DOI: 10.1016/j.revmed.2015.02.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 01/08/2015] [Accepted: 02/07/2015] [Indexed: 12/12/2022]
Abstract
Hyperviscosity syndrome is a life-threatening complication. Clinical manifestations include neurological impairment, visual disturbance and bleeding. Measurement of plasma or serum viscosity by a viscometer assesses the diagnosis. Funduscopic examination is a key exam because abnormalities are well-correlated with abnormal plasma viscosity. Etiologies are various but symptomatic hyperviscosity is more common in Waldenström's macroglobulinemia and multiple myeloma. Prompt treatment is needed: treatment of the underlying disease should be considered, but generally not sufficient. Symptomatic measures aim to not exacerbate blood viscosity while urgent plasmapheresis effectively reduces the paraprotein concentration and relieves symptoms.
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Gou X, Wang Z, Li N, Qiu F, Xu Z, Yan D, Yang S, Jia J, Kong X, Wei Z, Lu S, Lian L, Wu C, Wang X, Li G, Ma T, Jiang Q, Zhao X, Yang J, Liu B, Wei D, Li H, Yang J, Yan Y, Zhao G, Dong X, Li M, Deng W, Leng J, Wei C, Wang C, Mao H, Zhang H, Ding G, Li Y. Whole-genome sequencing of six dog breeds from continuous altitudes reveals adaptation to high-altitude hypoxia. Genome Res 2014; 24:1308-15. [PMID: 24721644 PMCID: PMC4120084 DOI: 10.1101/gr.171876.113] [Citation(s) in RCA: 158] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The hypoxic environment imposes severe selective pressure on species living at high altitude. To understand the genetic bases of adaptation to high altitude in dogs, we performed whole-genome sequencing of 60 dogs including five breeds living at continuous altitudes along the Tibetan Plateau from 800 to 5100 m as well as one European breed. More than 150× sequencing coverage for each breed provides us with a comprehensive assessment of the genetic polymorphisms of the dogs, including Tibetan Mastiffs. Comparison of the breeds from different altitudes reveals strong signals of population differentiation at the locus of hypoxia-related genes including endothelial Per-Arnt-Sim (PAS) domain protein 1 (EPAS1) and beta hemoglobin cluster. Notably, four novel nonsynonymous mutations specific to high-altitude dogs are identified at EPAS1, one of which occurred at a quite conserved site in the PAS domain. The association testing between EPAS1 genotypes and blood-related phenotypes on additional high-altitude dogs reveals that the homozygous mutation is associated with decreased blood flow resistance, which may help to improve hemorheologic fitness. Interestingly, EPAS1 was also identified as a selective target in Tibetan highlanders, though no amino acid changes were found. Thus, our results not only indicate parallel evolution of humans and dogs in adaptation to high-altitude hypoxia, but also provide a new opportunity to study the role of EPAS1 in the adaptive processes.
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Affiliation(s)
- Xiao Gou
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; College of Animal Science and Technology/State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100094, China
| | - Zhen Wang
- Key Laboratory of Systems Biology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; Shanghai Center for Bioinformation Technology, Shanghai Industrial Technology Institute, Shanghai 201203, China
| | - Ning Li
- College of Animal Science and Technology/State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100094, China
| | - Feng Qiu
- Shanghai Center for Bioinformation Technology, Shanghai Industrial Technology Institute, Shanghai 201203, China; EG Information Technology Enterprise (EGI), Encode Genomics Biotechnology Co., Ltd., Shanghai 200235, China
| | - Ze Xu
- EG Information Technology Enterprise (EGI), Encode Genomics Biotechnology Co., Ltd., Shanghai 200235, China
| | - Dawei Yan
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Shuli Yang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jia Jia
- Shanghai Center for Bioinformation Technology, Shanghai Industrial Technology Institute, Shanghai 201203, China
| | - Xiaoyan Kong
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Zehui Wei
- College of Animal Science and Technology, Northwest Agricultural and Forestry University, Yangling 712100, China
| | - Shaoxiong Lu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Linsheng Lian
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Changxin Wu
- College of Animal Science and Technology/State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100094, China
| | - Xueyan Wang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Guozhi Li
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Teng Ma
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Qiang Jiang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Xue Zhao
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jiaqiang Yang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Baohong Liu
- EG Information Technology Enterprise (EGI), Encode Genomics Biotechnology Co., Ltd., Shanghai 200235, China
| | - Dongkai Wei
- EG Information Technology Enterprise (EGI), Encode Genomics Biotechnology Co., Ltd., Shanghai 200235, China
| | - Hong Li
- Key Laboratory of Systems Biology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; Shanghai Center for Bioinformation Technology, Shanghai Industrial Technology Institute, Shanghai 201203, China
| | - Jianfa Yang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Yulin Yan
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Guiying Zhao
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Xinxing Dong
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Mingli Li
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Weidong Deng
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jing Leng
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Chaochun Wei
- Shanghai Center for Bioinformation Technology, Shanghai Industrial Technology Institute, Shanghai 201203, China; School of Life Science and Technology, Shanghai Jiaotong University, Shanghai 200240, China
| | - Chuan Wang
- National Center for Protein Science Shanghai, National Facility for Protein Science in Shanghai, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Huaming Mao
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Hao Zhang
- College of Animal Science and Technology/State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100094, China
| | - Guohui Ding
- Key Laboratory of Systems Biology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; Shanghai Center for Bioinformation Technology, Shanghai Industrial Technology Institute, Shanghai 201203, China
| | - Yixue Li
- Key Laboratory of Systems Biology, Shanghai Institute for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China; Shanghai Center for Bioinformation Technology, Shanghai Industrial Technology Institute, Shanghai 201203, China; School of Life Science and Technology, Shanghai Jiaotong University, Shanghai 200240, China; School of Life Science and Technology, Shanghai Tongji University, Shanghai 200092, China
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Harston GWJ, Batt F, Fan L, Okell TW, Sheerin F, Littlewood T, Kennedy J. Lacunar infarction associated with anabolic steroids and polycythemia: a case report. Case Rep Neurol 2014; 6:34-7. [PMID: 24707265 PMCID: PMC3975720 DOI: 10.1159/000360076] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Lacunar infarction is traditionally ascribed to lipohyalinosis or microatheroma. We report the case of 40-year-old man, without traditional risk factors for ischemic stroke, who presented to the Emergency Department with recurrent episodes of transient right-sided weakness and paresthesia. Lacunar infarction was confirmed on diffusion-weighted MRI and blood tests showed a marked polycythemia. Quantitative magnetic resonance perfusion imaging demonstrated dramatically abnormal perfusion throughout both cerebral hemispheres, and transcranial Doppler revealed reduced cerebral artery velocities, both consistent with the proposed mechanism of hyperviscosity. His symptoms settled with treatment of the polycythemia and workup did not find another cause of ischemic stroke. We propose that hyperviscosity secondary to steroid-induced polycythemia caused ischemia in this case and not lipohyalinosis or microatheroma, to which lacunar disease is commonly attributed.
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Affiliation(s)
| | - Farzana Batt
- Acute Stroke Service, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Lampson Fan
- Acute Stroke Service, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Thomas W Okell
- FMRIB, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Fintan Sheerin
- Department of Neuroradiology, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Timothy Littlewood
- Department of Clinical Haematology, Oxford University Hospitals NHS Trust, Oxford, UK
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Kul AN, Ozdemir S, Helvaci A, Bulut C, Dursun S. The Relationship of Acute Myocardial Infarction With or Without ST-Segment Elevation and Viscosity. Clin Appl Thromb Hemost 2013; 20:779-82. [DOI: 10.1177/1076029613492009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We compared hemorheological parameters in 42 male patients with acute myocardial infarction (AMI), with (n = 22) or without (n = 20) ST-segment elevation and in 20 controls. Plasma and blood viscosity (cP), plasma protein (g/dL) and fibrinogen (mg/dL) concentrations, red (106/µL) and white (103/µL) blood cell counts, hemoglobin concentration (g/dL), and hematocrit (%) were compared. Plasma viscosity was significantly higher in patients with AMI with ( P = .012) and without ( P = .046) ST-segment elevation than in controls. Patients with AMI with and without ST-segment elevation had significantly lower albumin ( P = .002 and P = .009) and globulin ( P = .001 and P = .007) concentrations, red blood cell counts ( P = .0001 and P = .004), and hematocrit ( P = .014 and P = .040) and significantly higher fibrinogen concentrations ( P = .0001 and P = .001) than controls. These findings suggest that AMI in males is associated with increased plasma viscosity and fibrinogen concentrations and with decreased albumin and globulin concentrations, erythrocyte count, and hematocrit, regardless of ST-segment elevation.
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Affiliation(s)
- Ayse Nilgun Kul
- Department of Internal Medicine, Okmeydani Training and Research Hospital, Istanbul, Turkey
| | - Semra Ozdemir
- Department of Biophysics, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Aysen Helvaci
- Department of Internal Medicine, Okmeydani Training and Research Hospital, Istanbul, Turkey
| | - Cengiz Bulut
- Department of Internal Medicine, Okmeydani Training and Research Hospital, Istanbul, Turkey
| | - Sefik Dursun
- Department of Biophysics, Cerrahpasa Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Janvier F, Zhu JXX, Armstrong J, Meiselman HJ, Cloutier G. Effects of amphiphilic star-shaped poly(ethylene glycol) polymers with a cholic acid core on human red blood cell aggregation. J Mech Behav Biomed Mater 2012; 18:100-7. [PMID: 23262308 DOI: 10.1016/j.jmbbm.2012.11.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 11/15/2012] [Accepted: 11/20/2012] [Indexed: 10/27/2022]
Abstract
Elevated red blood cell (RBC) aggregation increases low-shear blood viscosity and is closely related to several pathophysiological diseases such as atherosclerosis, thrombosis, diabetes, hypertension, cancer, and hereditary chronic hemolytic conditions. Non-ionic linear polymers such as poly(ethylene glycol) (PEG) and Pluronic F68 have shown inhibitory effects against RBC aggregation. However, hypersensitivity reactions in some individuals, attributed to a diblock component of Pluronic F68, have been reported. Therefore, we investigated the use of an amphiphilic star-shaped PEG polymer based on a cholic acid core as a substitute for Pluronics to reduce RBC aggregation. Cholic acid is a natural bile acid produced in the human liver and therefore should assure biocompatibility. Cholic acid based PEG polymers, termed CA(PEG)(4), were synthesized by anionic polymerization. Size exclusion chromatography indicated narrow mass distributions and hydrodynamic radii less than 2 nm were calculated. The effects of CA(PEG)(4) on human RBC aggregation and blood viscosity were investigated and compared to linear PEGs by light transmission aggregometry. Results showed optimal reduction of RBC aggregation for molar masses between 10 and 16 kDa of star-shaped CA(PEG)(4) polymers. Cholic acid based PEG polymers affect the rheology of erythrocytes and may find applications as alternatives to linear PEG or Pluronics to improve blood fluidity.
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Affiliation(s)
- Florence Janvier
- Laboratory of Biorheology and Medical Ultrasonics, University of Montreal Hospital Research Center (CRCHUM), Montréal, Québec, Canada H2L 2W5
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Ciccoli L, De Felice C, Paccagnini E, Leoncini S, Pecorelli A, Signorini C, Belmonte G, Valacchi G, Rossi M, Hayek J. Morphological changes and oxidative damage in Rett Syndrome erythrocytes. Biochim Biophys Acta Gen Subj 2012; 1820:511-20. [DOI: 10.1016/j.bbagen.2011.12.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Revised: 11/29/2011] [Accepted: 12/05/2011] [Indexed: 12/21/2022]
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Mazzulla S, Sesti S, Schella A, Perrotta I, Anile A, Drogo S. Protective Effect of <i>Aloe vera (Aloe barbadensis</i> Miller) on Erythrocytes Anion Transporter and Oxidative Change. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/fns.2012.312222] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Childress MO. Hematologic Abnormalities in the Small Animal Cancer Patient. Vet Clin North Am Small Anim Pract 2012; 42:123-55. [DOI: 10.1016/j.cvsm.2011.09.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Abdallah FB, Fetoui H, Fakhfakh F, Keskes L. Caffeic acid and quercetin protect erythrocytes against the oxidative stress and the genotoxic effects of lambda-cyhalothrin in vitro. Hum Exp Toxicol 2011; 31:92-100. [PMID: 22027499 DOI: 10.1177/0960327111424303] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Lambda-cyhalothrin (LTC) is a synthetic pyrethroid with a broad spectrum of insecticidal and acaricidal activities used to control wide range of insect pests in a variety of applications. The aim of this study was to examine (i) the potency of LTC to induce oxidative stress response in rat erythrocytes in vitro and (ii) the role of caffeic acid (20 μM) and/or quercetin (10 μM) in preventing the cytotoxic effects. Erythrocytes were divided into four portions. The erythrocytes of the first portion were incubated for 4 h at 37°C with different concentrations (0, 50 and 100 μM) of LTC. The others portions were pretreated with caffeic acid and/or quercetin for 30 min prior to LTC incubation. Lipid peroxidation, protein oxidation, antioxidant enzyme activities and DNA damage were examined. LTC at different concentrations causes increased levels of lipid peroxidation, protein oxidation, DNA damage and decreased antioxidant enzyme activities. Combined caffeic acid and quercetin pretreatments significantly reduced the levels of lipid peroxidation markers, that is thiobarbituric acid reactive substance (TBARS), protein carbonyls (PCO) and decreased DNA damage in LTC portion. Further, combined caffeic acid and quercetin pretreatment maintain antioxidant enzyme activities and glutathione content near to normal values. These results suggest that LTC exerts its toxic effect by increasing lipid peroxidation, altering the antioxidant enzyme activities and DNA damage. Caffeic acid and quercetin pretreatments prevent the toxic effects of LTC, suggesting their role as a potential antioxidant.
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Affiliation(s)
- Fatma Ben Abdallah
- Laboratory of Histology Embryology and Reproductive Biology, University of Sfax, Tunisia.
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Wahl P, Bloch W, Mester J, Born DP, Sperlich B. Effects of different levels of compression during sub-maximal and high-intensity exercise on erythrocyte deformability. Eur J Appl Physiol 2011; 112:2163-9. [PMID: 21964909 DOI: 10.1007/s00421-011-2186-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 09/17/2011] [Indexed: 11/25/2022]
Abstract
The aim of the study was to test the hypothesis whether different levels of sock compression (0, 10, 20, and 40 mmHg) affect erythrocyte deformability and metabolic parameters during sub-maximal and maximal running. Nine well-trained, male endurance athletes (age 22.2 ± 1.3 years, peak oxygen uptake 57.7 ± 4.5 mL min(-1) kg(-1)) carried out four periods of sub-maximal running at 70% of peak oxygen uptake for 30 min followed by a ramp test until exhaustion with and without compression socks that applied different levels of pressure. Erythrocyte deformability, blood lactate, heart rate and arterial partial pressure of oxygen (pO(2)) were monitored before and during all of these tests. Erythrocyte deformability, heart rate, pO(2) and lactate concentration were unaffected by compression, whereas exercise itself significantly increased erythrocyte deformability. However, the increasing effects of exercise were attenuated when high compression was applied. This first evaluation of the potential effects of increasing levels of compression on erythrocyte deformability and metabolic parameters during (sub-) maximal exercise, revealed no effects whatsoever.
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Affiliation(s)
- Patrick Wahl
- Institute of Training Science and Sport Informatics, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany.
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Leckey CAC, Hinders MK. Newtonian viscous effects in ultrasonic emboli removal from blood. ULTRASOUND IN MEDICINE & BIOLOGY 2011; 37:1340-1349. [PMID: 21684063 DOI: 10.1016/j.ultrasmedbio.2011.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 05/04/2011] [Accepted: 05/09/2011] [Indexed: 05/30/2023]
Abstract
We have modeled the removal of emboli from cardiopulmonary bypass circuits via acoustic radiation force. Unless removed, emboli can result in cognitive deficit for those undergoing heart surgery with the use of extracorporeal circuits. There are a variety of mathematical formulations in the literature describing acoustic radiation force, but a lingering question that remains is how important viscosity of the blood and/or embolus is to the process. We implemented both inviscid and viscous models for acoustic radiation force on a sphere immersed in a fluid. We found that for this specific application, the inviscid model seems to be sufficient for predicting acoustic force upon emboli when compared with the chosen viscous model. Thus, the much simpler inviscid model could be used to optimize experimental techniques for ultrasonic emboli removal.
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Babaoglu MO, Dikmenoglu N, Ileri-Gurel E, Seringec N, Zoto T, Yasar U, Kayaalp SO, Bozkurt A. Functional Effects of Endothelial Nitric Oxide Synthase Genetic Polymorphisms on Haemorheological Parameters in Healthy Human Individuals. Basic Clin Pharmacol Toxicol 2010; 108:171-6. [DOI: 10.1111/j.1742-7843.2010.00637.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Abstract
Micron-sized magnetic particles were induced to aggregate when placed in homogeneous magnetic fields, like those of MR imagers and relaxometers, and then spontaneously returned to their dispersed state when removed from the field. Associated with the aggregation and dispersion of the magnetic particles were time-dependent increases and decreases in the spin-spin relaxation time (T2) of the water. Magnetic nanoparticles, with far smaller magnetic moments per particle, did not undergo magnetically induced aggregation and exhibited time-independent values of T2. The rate of T2 change associated with magnetic microparticle aggregation was used to determine the viscosity of liquid samples, providing a method that can be of particular advantage for determining the viscosity of small volumes of potentially biohazardous samples of blood or blood plasma.
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Affiliation(s)
- Rui Hong
- Center for Molecular Imaging Research, Harvard Medical School, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA
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