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Pastacı Özsobacı N, Karış D, Ercan AM, Özçelik D. Investigation of Zinc on hemorheological parameters in a rat model of diabetes. J Trace Elem Med Biol 2024; 84:127450. [PMID: 38643593 DOI: 10.1016/j.jtemb.2024.127450] [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: 02/27/2024] [Revised: 04/01/2024] [Accepted: 04/09/2024] [Indexed: 04/23/2024]
Abstract
Diabetes mellitus (DM) is a complex, chronic metabolic disorder characterized by impaired regulation of blood glucose levels. Zinc (Zn) is an essential trace elements that plays a role in various physiological processes within the body, including those related to diabetes. The current study was investigated the effect of Zn supplementation on hemorheological parameters in a rat model of DM. After induction of DM, 32 male Wistar albino rats were divided into four groups: control, Zn, DM, and Zn+DM. Whole blood viscosity (WBV) was determined by using digital cone and plate viscometer and plasma viscosity (PV) was determined by a Coulter Harkness capillary viscometer. The rats in the DM Group showed a decrease in both Zn levels and body weight, as well as an increase in glucose levels when compared to the control group. Diabetic rats supplemented with Zn displayed lower blood glucose levels and higher concentrations of Zn compared to the DM Group. The higher PV and lower hematocrit level were measured in DM Group than control group and lower PV, higher hematocrit level were measured in Zn+DM group than DM Group. The WBV was measured at four different shear rates (57.6-115.2 - 172.8-230.4 s -1). A statistically significant increase was observed in the DM group compared to the control group. Additionally, a statistically significant decrease was observed in the Zn+DM Group compared to the DM Group at a shear rate of 230.4 s-1. Erythrocyte rigidity index (Tk) and oxygen delivery index (ODI) were computed under conditions of high shear rate. The rats in the DM group exhibited a reduction in ODI and an elevation in Tk in comparison to the control group. Conversely, the diabetic rats supplemented with Zn exhibited decreased Tk and increased ODI compared to the DM Group. Zn supplementation seems to have a potential beneficial effect for protecting adverse affect of diabetes on hemorheogical parameters and for maintaining vascular health.
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Affiliation(s)
- Nural Pastacı Özsobacı
- Department of Biophysics, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkiye.
| | - Denizhan Karış
- Department of Biophysics, Faculty of Medicine, Istinye University, Istanbul, Turkiye
| | - Alev Meltem Ercan
- Department of Biophysics, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkiye
| | - Derviş Özçelik
- Department of Biophysics, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkiye; Department of Biophysics, Faculty of Medicine, Istanbul Arel University, Istanbul, Turkiye
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Jung F, Connes P. Morphology and Function of Red Blood Cells in COVID-19 Patients: Current Overview 2023. Life (Basel) 2024; 14:460. [PMID: 38672731 PMCID: PMC11051426 DOI: 10.3390/life14040460] [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: 02/06/2024] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024] Open
Abstract
In severe cases, SARS-CoV-2 infection leads to severe respiratory failure. Although angiotensin-converting enzyme 2 (ACE2) receptors are not expressed in red blood cells, SARS-CoV-2 can interact with red blood cells (RBCs) via several receptors or auxiliary membrane proteins. Recent data show that viral infection causes significant damage to the RBCs, altering their morphology, deformability, and aggregability. Loss of RBC deformability and/or increased aggregability favors the development of thrombotic processes in the microcirculation, as has been described to occur in COVID-19 patients. In addition, many patients also develop systemic endotheliitis associated with generalized coagulopathy. This manifests itself clinically as obstructive microthrombi in the area of the medium and smallest vessels, which can affect all internal organs. It is thought that such changes in the RBCs may contribute to the microangiopathy/microthrombosis associated with COVID-19 and may result in impaired capillary blood flow and tissue oxygenation.
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Affiliation(s)
- Friedrich Jung
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology Cottbus-Senftenberg, 01968 Senftenberg, Germany
| | - Philippe Connes
- Laboratory LIBM EA7424, Team “Vascular Biology and Red Blood Cell”, University of Lyon I, 69500 Lyon, France;
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Lutze S, Westphal T, Jünger M, Arnold A. Mikrozirkulationsstörungen der Haut: Microcirculation disorders of the skin. J Dtsch Dermatol Ges 2024; 22:236-266. [PMID: 38361200 DOI: 10.1111/ddg.15242_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 08/06/2023] [Indexed: 02/17/2024]
Abstract
ZusammenfassungVeränderungen in der Mikrozirkulation der Haut sind ein häufig beobachtetes Begleitphänomen vieler Erkrankungen, weit über das Spektrum dermatologischer Krankheiten hinausreichend. Nicht alle dieser Veränderungen haben einen Krankheitswert, viele treten temporär auf, ohne schwerwiegende Folgen zu verursachen. Dies trifft für viele inflammatorische Erkrankungen wie die Psoriasis vulgaris oder das atopische Ekzem zu.Daneben gibt es aber auch Erkrankungen, bei denen funktionell und morphologisch erkennbare Mikroangiopathien zu schwerwiegenden Krankheitsfolgen führen. Eine der wichtigsten Erkrankungen in diesem Zusammenhang ist die systemische Sklerose, eine autoimmune Systemerkrankung mit multiplen Organmanifestationen. Hier sind die Untersuchungen der kutanen Mikrozirkulation sowohl in der Erstdiagnose als auch in der Prognose‐ und Verlaufsbeurteilung von weitreichender Bedeutung.Auch bei Erkrankungen der peripheren Hämodynamik wie der peripheren arteriellen Verschlusskrankheit (pAVK) und der chronisch venösen Insuffizienz (CVI) spielt das Verständnis von Mikrozirkulationsstörungen eine wichtige Rolle für die Therapie und die Erfolgskontrolle therapeutischer Interventionen.
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Affiliation(s)
- Stine Lutze
- Klinik- und Poliklinik für Haut- und Geschlechtskrankheiten, Universitätsmedizin Greifswald
| | - Thea Westphal
- Klinik- und Poliklinik für Haut- und Geschlechtskrankheiten, Universitätsmedizin Greifswald
| | - Michael Jünger
- Klinik- und Poliklinik für Haut- und Geschlechtskrankheiten, Universitätsmedizin Greifswald
| | - Andreas Arnold
- Klinik- und Poliklinik für Haut- und Geschlechtskrankheiten, Universitätsmedizin Greifswald
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Lutze S, Westphal T, Jünger M, Arnold A. Microcirculation disorders of the skin. J Dtsch Dermatol Ges 2024; 22:236-264. [PMID: 38229208 DOI: 10.1111/ddg.15242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 08/06/2023] [Indexed: 01/18/2024]
Abstract
Changes in the microcirculation of the skin are a frequently observed accompanying phenomenon of many diseases, far beyond the spectrum of dermatological diseases. Not all of these changes are pathological, many are transient and have no serious consequences. This is true for many inflammatory diseases such as psoriasis vulgaris or atopic eczema. However, there are also diseases in which functionally and morphologically recognizable microangiopathies lead to severe disease consequences. One of the most important diseases in this context is systemic sclerosis, an autoimmune systemic disease with multiple organ manifestations. Investigations of the cutaneous microcirculation are of great importance for the initial diagnosis as well as for prognosis and assessment of disease progression. In peripheral hemodynamic disorders such as peripheral arterial disease (PAD) and chronic venous insufficiency (CVI), understanding microcirculatory disturbances also plays an important role in therapy and in monitoring the success of therapeutic interventions.
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Affiliation(s)
- Stine Lutze
- Clinic and Polyclinic for Skin and Venereal Diseases, University Hospital Greifswald, Greifswald, Germany
| | - Thea Westphal
- Clinic and Polyclinic for Skin and Venereal Diseases, University Hospital Greifswald, Greifswald, Germany
| | - Michael Jünger
- Clinic and Polyclinic for Skin and Venereal Diseases, University Hospital Greifswald, Greifswald, Germany
| | - Andreas Arnold
- Clinic and Polyclinic for Skin and Venereal Diseases, University Hospital Greifswald, Greifswald, Germany
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Ermolinskiy PB, Maksimov MK, Muravyov AV, Lugovtsov AE, Scheglovitova ON, Priezzhev AV. Forces of interaction of red blood cells and endothelial cells at different concentrations of fibrinogen: Measurements with laser tweezers in vitro. Clin Hemorheol Microcirc 2024; 86:303-312. [PMID: 37927250 DOI: 10.3233/ch-231941] [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] [Indexed: 11/07/2023]
Abstract
Blood microrheology depends on the constituents of blood plasma, the interaction between blood cells resulting in red blood cell (RBC) and platelets aggregation, and adhesion of RBC, platelets and leukocytes to vascular endothelium. The main plasma protein molecule -actuator of RBC aggregation is fibrinogen. In this paper the effect of interaction between the endothelium and RBC at different fibrinogen concentrations on the RBC microrheological properties was investigated in vitro. Laser tweezers were used to measure the RBC-endothelium interaction forces. It was shown for the first time that the interaction forces between RBC and endothelium are comparable with the RBC aggregation forces, they increase with fibrinogen concentration and reach the saturation level of about 4 pN at the concentration of 4 mg/ml. These results are important for better understanding the mechanisms of RBC and endothelium interaction and developing the novel therapeutic protocols of the microrheology correction in different pathologies.
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Affiliation(s)
- Petr B Ermolinskiy
- Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - Matvey K Maksimov
- Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - Alexey V Muravyov
- K.D. Ushinsky Yaroslavl State Pedagogical University, Yaroslavl, Russia
| | - Andrei E Lugovtsov
- Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - Olga N Scheglovitova
- N.F. Gamaleya National Research Center for Epidemiology and Microbiology, Moscow, Russia
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Ptaszek B, Podsiadło S, Teległów A. Effect of whole-body cryotherapy treatments on blood morphology and blood rheology: Red blood cell deformability, red blood cell aggregation in healthy subjects. Clin Hemorheol Microcirc 2022; 83:279-286. [PMID: 36565109 PMCID: PMC10116139 DOI: 10.3233/ch-221658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVE assessment of the effect of a series of 20 whole-body cryotherapy sessions on the morphological and rheological indicators of blood in healthy people. METHODS The experimental group consisted of 15 women and 15 men who underwent a series of whole-body cryotherapy treatments. The control group consisted of 15 women and 15 men - without intervention. For the analysis of blood biochemical parameters, venous blood was collected twice: Study 1: on the day of the commencement of whole body cryotherapy / from the control group; and Study 2: after a series of 20 cryotherapy sessions / from the control group (4 weeks). RESULTS After whole-body cryotherapy a statistically significant decrease in RBC, HGB, HCT, MCV, EI 0.30 and an increase in MCHC and EI 2.19-60.30 were observed in women, as well as a decrease in MCV, MCH, AI and an increase in PLT, EI 0.30-60.30, AMP, T1/2 in men. CONCLUSIONS The use of whole-body cryotherapy causes changes in blood counts in various directions and has a positive effect on the rheological properties of blood in women and men - it increases the elongation index and reduces the aggregation index.
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Affiliation(s)
- Bartłomiej Ptaszek
- Institute of Applied Sciences, University of Physical Education in Krakow, Krakow, Poland
| | - Szymon Podsiadło
- Institute of Clinical Rehabilitation, University of Physical Education in Krakow, Krakow, Poland
| | - Aneta Teległów
- Institute of Basic Sciences, University of Physical Education in Krakow, Krakow, Poland
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Rasyid A, Timan IS, Riyanto DL, Harris S, Kurniawan M, Mesiano T, Hidayat R, Wiyarta E. Coagulation and hemorheology profile of patient with stroke and COVID-19: A case series during second wave pandemic. Clin Hemorheol Microcirc 2022; 82:249-254. [PMID: 35811513 DOI: 10.3233/ch-221504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In 2021 the delta variant was discovered, heralding the start of the second pandemic wave. This case series aims to analyse and compare the coagulation and hemorheology profiles of COVID-19 patients diagnosed with acute stroke during the pandemic's second wave and ascertain the effect on patient outcomes. This case series reports 4 cases with their respective characteristics. Case 1 reports on COVID-19 patients without comorbidities, Case 2 with comorbidities, Case 3 with strokes in young patients, and Case 4 with strokes in elderly patients. All cases had abnormal coagulation and hemorheology factors with mixed outcomes. Coagulation and hemorheology factors tend to be higher in COVID-19 patients with acute stroke. The value of coagulation and hemorheology factors can be a prognostic outcome in COVID-19 patients with severe disease, especially in patients associated with acute stroke.
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Affiliation(s)
- Al Rasyid
- Department of Neurology, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Ina Susianti Timan
- Department of Clinical Pathology, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Dinda Larastika Riyanto
- Department of Neurology, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Salim Harris
- Department of Neurology, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Mohammad Kurniawan
- Department of Neurology, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Taufik Mesiano
- Department of Neurology, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Rakhmad Hidayat
- Department of Neurology, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Elvan Wiyarta
- Department of Medical Science, Faculty of Medicine, Universitas Indonesia-Cipto Mangunkusumo Hospital, Jakarta, Indonesia
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8
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Chkhitauri L, Sanikidze T, Giorgadze E, Asatiani K, Kipiani N, Momtselidze N, Mantskava M. Comprehensive study of the rheological status and intensity of oxidative stress during the progression of type 2 diabetes mellitus to prevent its complications. Clin Hemorheol Microcirc 2022; 83:69-79. [PMID: 36120773 DOI: 10.3233/ch-221512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Prevention of Type 2 diabetes mellitus (T2DM) requires a modifying effect on the pathological processes inducing the β-cell dysfunction. OBJECTIVES the comprehensive study of the violation of rheological parameters in patients with different stages of diabetes and identification of possible links between these alterations with the intensity of the oxidative stress in the patient's body. METHODS 60 patients with IR, prediabetes, T2DM and healthy volunteers were included. Full range of the rheological parameters of the patients' blood - the indicators of erythrocytes aggregation index (EAI), the relative deformability of the erythrocytes membranes (ERDI), blood plasma viscosity (BPV), and oxidative stress intensity (OSI) were examined. RESULTS In patients with insulin resistance (IR), prediabetes, and T2DM the ERDI was statistically significantly lower and BPV - higher compared to control; a significant increase in EAI was detected in the patient group with prediabetes and T2DM compared to the control. CONCLUSION The level of rheological disorders in patients increases with the increase of the level of carbohydrate metabolism disorders and intensity of oxidative stress and reaches a maximum during manifested diabetes. Diagnosis of hemorheological disorders and OSI in T2DM can serve as an early marker of target organ damage possibility.
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Affiliation(s)
- Lela Chkhitauri
- Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
| | - Tamar Sanikidze
- Tbilisi State Medical University, Tbilisi, Georgia.,Ivane Beritashvili Experimental Center of Biomedicine, Tbilisi, Georgia
| | - Elene Giorgadze
- Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
| | | | - Nana Kipiani
- Tbilisi State Medical University, Tbilisi, Georgia
| | - Nana Momtselidze
- Ivane Beritashvili Experimental Center of Biomedicine, Tbilisi, Georgia.,Multidisciplinary Science High School, Tbilisi, Georgia.,UNIK-Kutaisi University, Kutaisi, Georgia
| | - Maka Mantskava
- Tbilisi State Medical University, Tbilisi, Georgia.,Ivane Beritashvili Experimental Center of Biomedicine, Tbilisi, Georgia.,Multidisciplinary Science High School, Tbilisi, Georgia.,European University, Tbilisi, Georgia
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9
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Antonova N, Velcheva I, Paskova V. Hemorheological and microvascular disturbances in patients with type 2 diabetes mellitus. Clin Hemorheol Microcirc 2022; 81:325-341. [DOI: 10.3233/ch-221393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: In the blood vessels the impaired hemorheological parameters in patients with type 2 diabetes mellitus (T2DM) could lead to elevated flow resistance, increased forces at the endothelial wall and to microvascular disturbances. OBJECTIVE: The aim of the study is to investigate the hemorheological variables and the changes of the skin blood flow responses to cold stress in T2DM patients. METHODS: The basic hemorheological parameters: hematocrit (Ht), fibrinogen (Fib), whole blood viscosity (WBV) and plasma viscosity (PV) were examined in 20 patients with T2DM and a control group of 10 healthy age and sex matched controls. The mechanisms of vascular tone regulation were investigated using the wavelet analysis of the skin temperature oscillations (WAST). The degrees of the microvascular tone changes were determined during a cold test in the endothelial (0.02–0.0095 Hz), neurogenic (0.05– 0.02 Hz) and myogenic (0.05– 0.14 Hz) frequency ranges. RESULTS: Significant increase of Fib and WBV in the patients in comparison to controls was found. The mean values of the amplitudes of the skin temperature (ST) pulsations decreased significantly during the cold stress only in the endothelial frequency range for the diabetic patients. CONCLUSIONS: The results of our study reveal parallel impairment of the blood rheological parameters and the cutaneous microcirculation in T2DM patients.
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Affiliation(s)
- Nadia Antonova
- Department of Biomechanics, Institute of Mechanics to the Bulgarian Academy of Sciences, Bulgaria
| | - Irena Velcheva
- Clinic of Neurology, Uni Hospital, Panagyurishte, Bulgaria
| | - Vasilka Paskova
- Department of Biomechanics, Institute of Mechanics to the Bulgarian Academy of Sciences, Bulgaria
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Han L, Guo M, Wang B, Meng Q, Zhu J, Huang Q, Zhang Z, Fang X, Yang K, Wu S, Zheng Z, Yawalkar N, Deng H, Yan K. Sex-differential downregulation of methotrexate on plasma viscosity and whole blood viscosity in psoriasis. Clin Hemorheol Microcirc 2022; 81:305-314. [PMID: 35466929 DOI: 10.3233/ch-211343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Psoriasis is associated with an increased risk for cardiovascular disease (CVD). Methotrexate (MTX) is often used as a first-line system therapy and there is a need to determine its effect on whole blood viscosity (WBV) and plasma viscosity (PV) in psoriasis. METHODS A prospective, single-center, interventional study with a total of 111 psoriatic patients who received MTX therapy from October 22, 2018, to December 28, 2019, and 111 age- and sex-matched healthy controls. Changes in WBV, PV, blood counts, liver and renal function were evaluated. RESULTS Psoriatic patients had significantly higher levels of WBV and relative viscosity (RV) at low shear rate (LSR), erythrocyte aggregation index (EAI), and PV than sex and age-matched healthy controls. PV was positively correlated with erythrocyte sedimentation rate (ESR), ESR was positively correlated with high sensitive C-reactive protein (hCRP). But only hCRP was positively associated with psoriasis area severity index (PASI) score. MTX significantly decreased the levels of PV, ESR, hCRP, and blood pressure (BP) in male patients, and the level of WBV in female patients. CONCLUSION: Sex-specific downregulation of MTX on WBV, PV, hCRP, and BP, indicating that the effect of MTX on the risk of cardiovascular disease was related with sex.
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Affiliation(s)
- Ling Han
- Institute of Dermatology and Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Meiliang Guo
- Department of Dermatology, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Bing Wang
- Institute of Dermatology and Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Qinqin Meng
- Department of Dermatology, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Jie Zhu
- Institute of Dermatology and Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Qiong Huang
- Institute of Dermatology and Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhenghua Zhang
- Institute of Dermatology and Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Xu Fang
- Institute of Dermatology and Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Ke Yang
- Department of Information, Huashan Hospital, Fudan University, Shanghai, China
| | - Siyuan Wu
- Institute of Dermatology and Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhizhong Zheng
- Institute of Dermatology and Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Nikhil Yawalkar
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Switzerland
| | - Hui Deng
- Department of Dermatology, Shanghai Jiaotong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Kexiang Yan
- Institute of Dermatology and Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
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Barath B, Somogyi V, Tanczos B, Varga A, Bereczky Z, Nemeth N, Deak A. Examination of the relation between red blood cell aggregation and hematocrit in human and various experimental animals. Clin Hemorheol Microcirc 2021; 78:187-198. [PMID: 33579832 DOI: 10.3233/ch-211109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Red blood cell (RBC) aggregation plays an important role in the physiological processes of the microcirculation. The complete mechanism of aggregation is still unclear, and it is influenced by several cellular and plasmatic factors. One of these factors is the hematocrit (Hct). OBJECTIVE We hypothesized that the relation of RBC aggregation and Hct differs between species. METHODS From anticoagulated blood samples of healthy volunteers, rats, dogs, and pigs, 20, 40, and 60 %Hct RBC, autologous plasma suspensions were prepared. Hematological parameters and RBC aggregation was determined by light-transmission and light-reflection method. RESULTS Suspensions at 20%and 60%Hct expressed lower RBC aggregation than of 40%Hct suspensions, showing inter-species differences. By curve fitting the Hct at the highest aggregation value differed in species (human: 45.25%- M 5 s, 40.86%- amp; rat: 44.44 %- M1 10 s, 39.37%- amp; dog: 42.48%- M 5 s, 44.29%- amp; pig: 47.63%- M 5 s, 52.8%- amp). CONCLUSION RBC aggregation - hematocrit relation shows inter-species differences. Human blood was found to be the most sensitive for hematocrit changes. The more obvious differences could be detected by M 5 s by light-transmission method and amplitude parameter using light-reflection method.
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Affiliation(s)
- Barbara Barath
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Viktoria Somogyi
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Bence Tanczos
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Adam Varga
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsuzsanna Bereczky
- Division of Clinical Laboratory Sciences, Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Norbert Nemeth
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Adam Deak
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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12
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Song K, Yi HJ, Lee DH, Sung JH. Association of blood viscosity with first-pass reperfusion in mechanical thrombectomy for acute ischemic stroke. Clin Hemorheol Microcirc 2021; 77:233-244. [PMID: 33074222 DOI: 10.3233/ch-200979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Elevated blood viscosity has been reported as a risk factor for cerebrovascular disease. OBJECTIVE The relationship between blood viscosity and outcomes of mechanical thrombectomy (MT) for large artery occlusion (LAO) were investigated in the present study. METHODS A total of 238 patients were enrolled and systolic blood viscosity (SBV) and diastolic blood viscosity (DBV) were measured using the scanning capillary tube viscometer. Receiver operating characteristic (ROC) analysis was performed to specify the association of viscosity with the first-pass reperfusion (FPR). Multivariable and regression analyses were performed to evaluate the relationship of viscosity with FPR and various variables. RESULTS Based on ROC analysis, the best DBV cutoff value was 10.55 (cP). In multivariable analysis, high DBV was associated with FPR failure (odds ratio 2.82, 95% confidence interval 1.64-4.22; p = 0.001). Increased DVB could be associated with elevated SBV, hematocrit level, and blood urea nitrogen/creatinine ratio (p = <0.001, 0.004, and 0.002, respectively). CONCLUSIONS Elevated DBV was associated with FPR failure. Patients with high DBV had longer thrombus length and required more stent passages than patients with low DBV.
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Affiliation(s)
- Kyojun Song
- Department of Neurosurgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Department of Neurosurgery, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ho Jun Yi
- Department of Neurosurgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Department of Neurosurgery, Soonchunhyang University Bucheon Hospital, College of Medicine, Soonchunhyang University, Bucheon, Republic of Korea
| | - Dong Hoon Lee
- Department of Neurosurgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jae Hoon Sung
- Department of Neurosurgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Szabo B, Tanczos B, Varga A, Barath B, Ghanem S, Rezsabek Z, Al-Smadi MW, Nemeth N. Micro-Rheological Changes of Red Blood Cells in the Presence of an Arterio-Venous Fistula or a Loop-Shaped Venous Graft in the Rat. Front Physiol 2020; 11:616528. [PMID: 33391035 PMCID: PMC7775550 DOI: 10.3389/fphys.2020.616528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 11/30/2020] [Indexed: 11/17/2022] Open
Abstract
Introduction: In case of kidney failure, hemodialysis is the primary kidney replacement technique. Several vascular access methods used for the therapy, one of which is the arterio-venous fistula (AVF). In the AVF, the blood flow is altered, which can elevate the mechanical stress on the red blood cells (RBCs). This can affect the RBC hemorheological properties, and it can further cause systemic changes. To lower the turbulence and shear stress, we performed a loop-shaped arterio-arterial venous interposition graft (loop-shaped graft) to compare its effect to the conventional AVF. Materials and Methods: Thirty male Wistar were used (permission registration Nr.: 25/2016/UDCAW). The animals were randomly divided into sham-operated, AVF, and loop groups (n = 10/each). The superficial inferior epigastric vein (SIEV) was used to create the AVF and the loop-shaped graft. Blood samples were taken before/after the surgery and at the 1st, 3rd, and 5th postoperative weeks. We measured hemorhelogical, hematological, and blood gas parameters. The microcirculation of the hind limbs was also monitored using Laser Doppler fluxmetry. Results: Hematocrit, RBC count, and hemoglobin decreased by the 1st postoperative week. The erythrocyte aggregation values significantly increased in the fistula group by the 5th week (6.43 ± 2.31 vs. 13.60; p < 0.0001; vs. before operation). At the postoperative 1st week in the loop group, the values showed a significant decrease in RBC deformability. During the maturation period, dominantly at the 5th week, all values were normalized. The operated hind limb’s skin microcirculation significantly increased in the sham and loop group by the 1st week (39 ± 10.57 vs. 73.93 ± 1.97 BFU, p < 0.01). This increase wasn’t observed in the fistula group probably due to a steal-effect. Conclusion: Unlike in the loop group, in the presence of the fistula, several rheological parameters have changed. The loop-shaped graft had only minimal impact on micro-rheological parameters.
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Affiliation(s)
- Balazs Szabo
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Bence Tanczos
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Adam Varga
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Barbara Barath
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Souleiman Ghanem
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsofia Rezsabek
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Mohammad Walid Al-Smadi
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Norbert Nemeth
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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14
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Park JW, Matschke K, Mrowietz C, Krüger-Genge A, Jung F. HELP-(Heparin-induced Extracorporeal LDL Precipitation)-apheresis in heart recipients with cardiac allograft vasculopathy and concomitant hypercholesterolemia: Influence of long-term treatment on the microcirculation. Clin Hemorheol Microcirc 2020; 73:19-27. [PMID: 31561344 DOI: 10.3233/ch-199216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Hyperlipidemic heart transplant patients who develop cardiac allograft vasculopathy (CAV) benefit from HELP-apheresis (Heparin-induced Extracorporeal LDL Precipitation) which enables drastic lowering of plasma low-density lipoprotein, lipoprotein (a), and fibrinogen. There is evidence that HELP-apheresis also improves microcirculation by an immediate improvement of impaired endothelial-dependent vasodilatation and additive hemorheological effects.Therefore, cutaneous microcirculation was examined before, during, and after the first HELP-apheresis in eight hyperlipidemic cardiac transplant recipients with CAV. To study the long-term effect the intravital microscopy was repeated after three and 12 months of weekly apheresis treatment.In CAV patients the baseline mean erythrocyte velocity was pathologically reduced with 0.13±0.07 mm/s. During the first HELP-apheresis the erythrocyte velocity increased significantly (p = 0.0001) and remained increased until the end of the HELP procedure (p < 0.05). After three months of weekly apheresis treatment a decrease of temporary flow stops in the capillaries with a progressive homogenization (concordance) of the cutaneous microcirculation was observed. After one year of weekly treatment a markedly increase in mean erythrocyte velocity under resting conditions occurred. In addition, a reactive post-ischemic hyperemia could be established for the first time.Even the first single HELP-apheresis resulted in a significant improvement of the cutaneous microcirculation. The long-term treatment of these patients resulted in a marked improvement of the cutaneous microcirculation with the tendency to a normalization of the regulation of the capillary perfusion.
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Affiliation(s)
- J W Park
- Division of Cardiology, Dietrich Bonhoeffer Hospital, Academic Teaching Hospital of University of Greifswald, Germany
| | - K Matschke
- Heart Center Dresden, Technical University Dresden, Dresden, Germany
| | - C Mrowietz
- Institute for Animal Hygiene, Animal Welfare and Farm Animal Behavior, Virtual Center for Replacement - Complementary Methods to Animal Testing, University of Veterinary Medicine Hannover, Hannover, Germany
| | - A Krüger-Genge
- Fraunhofer Institute for Applied Polymer Research (IAP), Germany
| | - F Jung
- Institute of Biotechnology, Brandenburgische Technische Universität Cottbus-Senftenberg, Senftenberg, Germany
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15
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Lamby P, Krüger-Genge A, Franke RP, Mrowietz C, Falter J, Graf S, Schellenberg EL, Jung F, Prantl L. Effect of iodinated contrast media on the oxygen tension in the renal cortico-medullary region of pigs. Clin Hemorheol Microcirc 2020; 73:261-270. [PMID: 31322554 DOI: 10.3233/ch-199009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Repeated injections of iodinated contrast media (CM) can lead to a deterioration of the renal blood flow, can redistribute blood from the renal cortex to other parts of the kidney and can cause small decreases of the blood flow in cortical capillaries, a significant reduction in blood flow in peritubular capillaries and a significant reduction in blood flow in the vasa recta. Therefore, a study in pigs was designed, to show whether the repeated injection of CM boli, alone, can cause a reduction of oxygenation in the cortico-medullar renal tissue - the region with the highest oxygen demand in the kidney - of pigs.While the mean pO2-value had only decreased by 0.3 mmHg from 29.9±4.3 mmHg to 29.6±4.3 mmHg (p = 0.8799) after the tenth Iodixanol bolus, it decreased by 5.9 mmHg from 34.0±4.3 mmHg to 28.1±4.3 mmHg after the tenth Iopromide bolus (p = 0.044). This revealed a remarkable difference in the influence of these CM on the oxygen partial pressure in the kidney.Repeated applications of CM had a significant influence on the renal oxygen partial pressure. In line with earlier studies showing a redistribution of blood from the cortex to other renal areas, this study revealed that Iodixanol - in contrast to Iopromide - induced no changes in the pO2 in the cortico-medullar region which confirms that Iodixanol did not hinder the flow of blood through the renal micro-vessels. These results are in favor of a hypothesis from Brezis that a microcirculatory disorder might be the basis for the development of CI-AKI.
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Affiliation(s)
- P Lamby
- Department of Plastic and Hand Surgery, University Hospital Regensburg, Germany
| | - A Krüger-Genge
- Department of Anaesthesia, Pain Management and Perioperative Medicine, Faculty of Medicine, Dalhousie University, Halifax, Canada
| | - R P Franke
- Central Institute for Biomedical Engineering, Department of Biomaterials, University of Ulm, Ulm, Germany
| | - C Mrowietz
- Institute for Animal Hygiene, Animal Welfare and Farm Animal Behaviour and Virtual Center for Replacement - Complementary Methods to Animal Testing, University of Veterinary Medicine Hannover, Hannover, Germany
| | - J Falter
- Department of Plastic and Hand Surgery, University Hospital Regensburg, Germany
| | - S Graf
- Department of Plastic and Hand Surgery, University Hospital Regensburg, Germany
| | - E L Schellenberg
- Department of Anesthesiology, University Hospital Regensburg, Germany
| | - F Jung
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - L Prantl
- Department of Plastic and Hand Surgery, University Hospital Regensburg, Germany
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16
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Sengoz T, Kilic-Toprak E, Yaylali O, Kilic-Erkek O, Ozdemir Y, Oymak B, Senol H, Yuksel D, Kucukatay V, Bor-Kucukatay M. Hemorheology and oxidative stress in patients with differentiated thyroid cancer following I-131 ablation/metastasis treatment. Clin Hemorheol Microcirc 2019; 74:209-221. [PMID: 31884456 DOI: 10.3233/ch-190717] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Although radioiodine theraphy (RAIT) is thought to affect blood cells and oxidative stress, hemorheological alterations following dose-dependent RAIT remains unknown. OBJECTIVE The aim of this study was to determine the effects of RAIT on hemorheological and oxidative stress parameters in patients with differentiated thyroid cancers (DTC). METHODS Totally 31 DTC patients (mean age 46.32±11.15 years) and 26 healthy controls (mean age 50.50±6.22 years) were included. Venous blood samples were collected from each patient before and after treatment (7th day, 1th month and 6th month). Erythrocyte aggregation-deformability and oxidative stress parameters were determined. p < 0.05 was considered as statistically significant. RESULTS Erythrocyte deformability of the patients determined at 16.87 and 30 Pascal were significantly lower than healthy individuals. Erythrocyte aggregation index (AI) of the patients was higher, whereas erythrocyte aggregation half-time (t½) was lower compared to control. Erythrocyte deformability values and AI were not significantly different from the pre- and post-radioiodine treatment groups. There was no statistically significant difference between the oxidative stress parameters before and after the treatment. CONCLUSIONS Patients were in a worse hemorheological condition compared to healthy individuals. After RAIT, RBC deformability and aggregation were not affected and no significant change in oxidative stress parameters was detected.
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Affiliation(s)
- Tarik Sengoz
- Pamukkale University, Medical Faculty, Department of Nuclear Medicine, Denizli, Turkey
| | - Emine Kilic-Toprak
- Pamukkale University, Medical Faculty, Department of Physiology, Denizli, Turkey
| | - Olga Yaylali
- Pamukkale University, Medical Faculty, Department of Nuclear Medicine, Denizli, Turkey
| | - Ozgen Kilic-Erkek
- Pamukkale University, Medical Faculty, Department of Physiology, Denizli, Turkey
| | - Yasin Ozdemir
- Pamukkale University, Medical Faculty, Department of Physiology, Denizli, Turkey
| | - Burak Oymak
- Pamukkale University, Medical Faculty, Department of Physiology, Denizli, Turkey
| | - Hande Senol
- Pamukkale University, Faculty of Medicine, Department of Biostatistics, Denizli, Turkey
| | - Dogangun Yuksel
- Pamukkale University, Medical Faculty, Department of Nuclear Medicine, Denizli, Turkey
| | - Vural Kucukatay
- Pamukkale University, Medical Faculty, Department of Physiology, Denizli, Turkey
| | - Melek Bor-Kucukatay
- Pamukkale University, Medical Faculty, Department of Physiology, Denizli, Turkey
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17
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Ghanem S, Somogyi V, Tanczos B, Szabo B, Deak A, Nemeth N. Modulation of micro-rheological and hematological parameters in the presence of artificial carotid-jugular fistula in rats. Clin Hemorheol Microcirc 2019; 71:325-335. [PMID: 29914014 DOI: 10.3233/ch-180411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Arteriovenous fistula (AVF) may affect erythrocytes through many pathways (e.g., mechanical, inflammatory). However, these effects haven't been elucidated completely yet. OBJECTIVE To follow-up the hemorheological and the hematological changes in the presence of artificial carotid-jugular fistula in rats. METHODS Female Wistar rats were subjected to sham-operated group (SG, n = 6) and to fistula group (FG, n = 10). Under general anesthesia, the right carotid artery and jugular vein were isolated via a neck incision, and in the FG carotid-jugular fistula was performed by microsurgical techniques. Hematological variables, red blood cell (RBC) deformability and membrane (mechanical) stability parameters were determined before operation and on the 1st and 6th postoperative weeks. Density separated samples ('young' and 'old' RBCs) were also tested. RESULTS In FG group hematocrit, RBC and platelet counts increased gradually to reach highly significant level of increment on the 6th postoperative week. RBC deformability significantly was impaired. The membrane stability test showed lower deformability values after applying mechanical shearing. No significant differences were observed between density separated RBC subpopulations. CONCLUSIONS The presence of arteriovenous fistula may lead to an increment of RBC mass and impairment of RBC deformability. These changes could be one of the pathways through which the fistula influences the microcirculation.
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Affiliation(s)
- Souleiman Ghanem
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Viktoria Somogyi
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Bence Tanczos
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Balazs Szabo
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Adam Deak
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Norbert Nemeth
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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18
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Naumann DN, Hazeldine J, Bishop J, Midwinter MJ, Harrison P, Nash G, Hutchings SD. Impact of plasma viscosity on microcirculatory flow after traumatic haemorrhagic shock: A prospective observational study. Clin Hemorheol Microcirc 2019; 71:71-82. [PMID: 29843227 DOI: 10.3233/ch-180397] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Preclinical studies report that higher plasma viscosity improves microcirculatory flow after haemorrhagic shock and resuscitation, but no clinical study has tested this hypothesis. OBJECTIVE We investigated the relationship between plasma viscosity and sublingual microcirculatory flow in patients during resuscitation for traumatic haemorrhagic shock (THS). METHODS Sublingual video-microscopy was performed for 20 trauma patients with THS as soon as feasible in hospital, and then at 24 h and 48 h. Values were obtained for total vessel density, perfused vessel density, proportion of perfused vessels, microcirculatory flow index (MFI), microcirculatory heterogeneity index (MHI), and Point of Care Microcirculation (POEM) scores. Plasma viscosity was measured using a Wells-Brookfield cone and plate micro-viscometer. Logistic regression analyses examined relationships between microcirculatory parameters and plasma viscosity, adjusting for covariates (systolic blood pressure, heart rate, haematocrit, rate and volume of fluids, and rate of noradrenaline). RESULTS Higher plasma viscosity was not associated with improved microcirculatory parameters. Instead, there were weakly significant associations between higher plasma viscosity and lower (poorer) MFI (p = 0.040), higher (worse) MHI (p = 0.033), and lower (worse) POEM scores (p = 0.039). CONCLUSIONS The current study did not confirm the hypothesis that higher plasma viscosity improves microcirculatory flow dynamics in patients with THS. Further clinical investigations are warranted to determine whether viscosity is a physical parameter of importance during resuscitation of these patients.
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Affiliation(s)
- David N Naumann
- Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, Queen Elizabeth Hospital, Birmingham, UK.,Institute of Inflammation and Ageing, University of Birmingham Research Laboratories, Queen Elizabeth Hospital, Birmingham, UK.,National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham, UK
| | - Jon Hazeldine
- Institute of Inflammation and Ageing, University of Birmingham Research Laboratories, Queen Elizabeth Hospital, Birmingham, UK.,National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham, UK
| | - Jon Bishop
- National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham, UK
| | - Mark J Midwinter
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - Paul Harrison
- Institute of Inflammation and Ageing, University of Birmingham Research Laboratories, Queen Elizabeth Hospital, Birmingham, UK
| | - Gerard Nash
- Institute of Cardiovascular Science, University of Birmingham, UK
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19
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Krüger-Genge A, Sternitzky R, Pindur G, Rampling M, Franke R, Jung F. Erythrocyte aggregation in relation to plasma proteins and lipids. ACTA ACUST UNITED AC 2019. [DOI: 10.3233/jcb-189014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- A. Krüger-Genge
- Department of Anesthesia, Pain Management and Perioperative Medicine, Faculty of Medicine, Dalhousie University, Halifax, Canada
| | | | - G. Pindur
- Institute of Clinical Haemostasiology and Transfusion Medicine, University of Saarland, Homburg, Germany
| | - M. Rampling
- Department of Bioengineering, Imperial College London, London, UK
| | - R.P. Franke
- Central Institute for Biomedical Engineering, Department of Biomaterials, University of Ulm, Ulm, Germany
| | - F. Jung
- Institute of Clinical Haemostasiology and Transfusion Medicine, University of Saarland, Homburg, Germany
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20
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Farber PL, Freitas T, Saldanha C, Silva-Herdade AS. Beta-estradiol and ethinylestradiol enhance RBC deformability dependent on their blood concentration. Clin Hemorheol Microcirc 2018; 70:339-345. [DOI: 10.3233/ch-180392] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | - Teresa Freitas
- Institute of Molecular Medicine, Institute of Biochemistry, Faculty of Medicine, University of Lisbon, Portugal
| | - Carlota Saldanha
- Institute of Molecular Medicine, Institute of Biochemistry, Faculty of Medicine, University of Lisbon, Portugal
| | - Ana Santos Silva-Herdade
- Institute of Molecular Medicine, Institute of Biochemistry, Faculty of Medicine, University of Lisbon, Portugal
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21
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Peto K, Nemeth N, Mester A, Magyar Z, Ghanem S, Somogyi V, Tanczos B, Deak A, Bidiga L, Frecska E, Nemes B. Hemorheological and metabolic consequences of renal ischemia-reperfusion and their modulation by N,N-dimethyl-tryptamine on a rat model. Clin Hemorheol Microcirc 2018; 70:107-117. [DOI: 10.3233/ch-170361] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Katalin Peto
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Norbert Nemeth
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Anita Mester
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zsuzsanna Magyar
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Souleiman Ghanem
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Viktoria Somogyi
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Bence Tanczos
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Adam Deak
- Department of Operative Techniques and Surgical Research, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Laszlo Bidiga
- Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ede Frecska
- Department of Psychiatry, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Balazs Nemes
- Division of Organ Transplantation, Institute of Surgery, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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22
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Tsikouras P, Niesigk B, von Tempelhoff GF, Rath W, Schelkunov O, Daragó P, Csorba R. Blood rheology during normal pregnancy. Clin Hemorheol Microcirc 2018; 69:101-114. [PMID: 29758932 DOI: 10.3233/ch-189104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Recent studies have shown increased RBC aggregation and no difference in plasma viscosity in the presence of markedly lower hematocrit in women at term compared to non-pregnant women. Little is known about the outcome of blood rheological parameters and red blood cell (RBC) deformability particularly in the course of normal pregnancy. METHODS During a 36 months interval 1.913 blood samples were randomly collected from a total of 945 pregnant women in the course of their pregnancy (n = 1.259) and during puerperium (upto 1 week; n = 654). Next to the blood count, hemorheological parameters including red blood cell (RBC) -aggregation (stasis E0; low shear E1), -deformability (low, moderate and high shear conditions) and plasma viscosity (pv) were assessed. Plasma viscosity (pv) was examined using KSPV 1 Fresenius, RBC aggregation (stasis: E0 and low shear: E1) using MA1-Aggregometer; Myrenne and RBC deformability (def) was determined by Rheodyn SSD Diffractometer, Myrenne, Roetgen, Germany were tested. In some of these women laboratory results prior to pregnancy (n = 145) were available which were compared with those during pregnancy. RESULTS Mean maternal pv remained unchanged within each trimester and compared to the values before pregnancy and during early puerperium (Range of means: 1.18-1.20 mPa S). In contrast, RBC agg (E0 and E1) was markedly higher in the 2nd (21.8 ± 7.0 and 28.9 ± 9.4; p < 0.001) and 3rd trimester (18.74 ± 8.4 and 28.2 ± 9.4; p < 0.01) compared to the values before pregnancy (16.4 ± 6.4 and 20 ± 7.5) and during 1st trimester (17.49 ± 6.5 and 22.4 ± 7.4). There was a stat. significant temporary reduction in RBC def. under all shear rate conditions during 2nd trimester compared to the values before pregnancy which remained significantly lower during 3rd trimester only under high shear rates.An increase RBC agg was stat. significantly inversely correlated with reduced RBC def being most pronounced under low shear rate conditions. While RBC rigidity was stat. significantly correlated with higher hematocrit values there was only a weak correlation between RBC agg and haematocrit (E0: r = -0.084; p = 0.03; E1: r = -0.06; p = 0.1). Pv was not correlated with haematocrit or RBC def but stat. significantly correlated with RBC agg. CONCLUSIONS Blood rheological changes manifest during 1st trimester, and fairly remain unchanged during 2nd trimester until term. Physiologic hemodilution and increasing hypercoagulability is accompanied by high RBC -aggregation and - rigidity during 2nd trimester while plasma viscosity remains nearly unaffected throughout normal pregnancy.
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Affiliation(s)
- Panagiotis Tsikouras
- Department of Obstetrics and Gynecology, Democritus University of Thrace, Alexandroupolis, Greece
| | - Barbara Niesigk
- Department of Obstetrics and Gynecology, City Hospital of Aschaffenburg, Aschaffenburg, Germany
| | | | - Werner Rath
- Department of Obstetrics and Gynecology, University of Schleswig-Holstein Kiel, Germany
| | - Olga Schelkunov
- Department of Obstetrics and Gynecology, Vinzenz Hospital of Hanau, Germany
| | - Peter Daragó
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, Hungary
| | - Roland Csorba
- Department of Obstetrics and Gynecology, City Hospital of Aschaffenburg, Aschaffenburg, Germany.,Department of Obstetrics and Gynecology, Faculty of Medicine, University of Debrecen, Hungary
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23
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Richardson KJ, McNamee AP, Simmonds MJ. Haemochromatosis: Pathophysiology and the red blood cell1. Clin Hemorheol Microcirc 2018; 69:295-304. [DOI: 10.3233/ch-189128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Antony P. McNamee
- Biorheology Research Laboratory, Griffith University, Gold Coast, Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
| | - Michael J. Simmonds
- Biorheology Research Laboratory, Griffith University, Gold Coast, Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
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24
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Reinhart WH, Piety NZ, Shevkoplyas SS. Influence of red blood cell aggregation on perfusion of an artificial microvascular network. Microcirculation 2018; 24. [PMID: 27647727 DOI: 10.1111/micc.12317] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 09/12/2016] [Indexed: 02/06/2023]
Abstract
OBJECTIVE RBCs suspended in plasma form multicellular aggregates under low-flow conditions, increasing apparent blood viscosity at low shear rates. It has previously been unclear, however, if RBC aggregation affects microvascular perfusion. Here, we analyzed the impact of RBC aggregation on perfusion and 'capillary' hematocrit in an AMVN at driving pressures ranging from 5 to 60 cm H2 O to determine if aggregation could improve tissue oxygenation. METHODS RBCs were suspended at 30% hematocrit in either 46.5 g/L dextran 40 (D40, non-aggregating medium) or 35 g/L dextran 70 (D70, aggregating medium) solutions with equal viscosity. RESULTS Aggregation was readily observed in the AMVN for RBCs suspended in D70 at driving pressures ≤40 cm H2 O. The AMVN perfusion rate was the same for RBCs suspended in aggregating and non-aggregating medium, at both 'venular' and 'capillary' level. Estimated 'capillary' hematocrit was higher for D70 suspensions than for D40 suspensions at intermediate driving pressures (5-40 cm H2 O). CONCLUSIONS We conclude that although RBC aggregation did not affect the AMVN perfusion rate independently of the driving pressure, a higher hematocrit in the 'capillaries' of the network for D70 suspensions suggested a better oxygen transport capacity in the presence of RBC aggregation.
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Affiliation(s)
- Walter H Reinhart
- Department of Internal Medicine, Kantonsspital Graubünden, Chur, Switzerland
| | - Nathaniel Z Piety
- Department of Biomedical Engineering, Cullen College of Engineering, University of Houston, Houston, Texas, USA
| | - Sergey S Shevkoplyas
- Department of Biomedical Engineering, Cullen College of Engineering, University of Houston, Houston, Texas, USA
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Mester A, Magyar Z, Sogor V, Tanczos B, Stark Y, Cherniavsky K, Bidiga L, Peto K, Nemeth N. Intestinal ischemia-reperfusion leads to early systemic micro-rheological and multiorgan microcirculatory alterations in the rat. Clin Hemorheol Microcirc 2018; 68:35-44. [DOI: 10.3233/ch-170278] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Anita Mester
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Zsuzsanna Magyar
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Viktoria Sogor
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Bence Tanczos
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Yoav Stark
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Konstantin Cherniavsky
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Laszlo Bidiga
- Department of Pathology, University of Debrecen, Hungary
| | - Katalin Peto
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Norbert Nemeth
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
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Wagner M, Anzinger E, Hey F, Reiter K, Wermelt JZ, Pastor-Villaescusa B, Genzel-Boroviczény O, Nussbaum C. Monitoring of the microcirculation in children undergoing major abdominal and thoracic surgery: A pilot study. Clin Hemorheol Microcirc 2017; 83:217-229. [PMID: 36502307 PMCID: PMC10116146 DOI: 10.3233/ch-221617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND: Monitoring of the macrocirculation during surgery provides limited information on the quality of organ perfusion. OBJECTIVE: We investigated the feasibility of perioperative microcirculatory measurements in children. METHODS: Sublingual microvessels were visualized by handheld videomicroscopy in 11 children (19 mo – 10 yrs) undergoing surgery > 120 min at four time points: T0) after induction of anesthesia; T1) before end of anesthesia, T2) 6 h post surgery and T3) 24 h post surgery. RESULTS: Measurements were feasible in all children at T0 and T1. At T2 and T3, imaging was restricted to 6 and 4 infants, respectively, due to respiratory compromise and missing cooperation. The capillary density was reduced at T1 compared to T0 (8.1 mm/mm2 [4.0-17.0] vs. 10.6 mm/mm2 [5.1-19.3]; p = 0.01), and inversely related to norepinephrine dose (Pearson r = -0.65; p = 0.04). Microvascular flow and serum glycocalyx makers Syndecan-1 and Hyaluronan increased significantly from T0 to T1. CONCLUSION: Perioperative microcirculatory monitoring in children requires a high amount of personal and logistic resources still limiting its routine use. Major surgery is associated with microvascular alterations and glycocalyx perturbation. The possible consequences on patient outcome need further evaluation. Efforts should concentrate on the development of next generation devices designed to facilitate microcirculatory monitoring in children.
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Affiliation(s)
- Marie Wagner
- Department of Pediatrics, Division of Neonatology, Dr von Hauner Children’s Hospital, University Hospital, LMU Munich, Germany
| | - Eveline Anzinger
- Department of Pediatrics, Division of Neonatology, Dr von Hauner Children’s Hospital, University Hospital, LMU Munich, Germany
| | - Florian Hey
- Department of Pediatrics, Pediatric Intensive Care Unit, Dr von Hauner Children’s Hospital, University Hospital, LMU, Munich, Germany
| | - Karl Reiter
- Department of Pediatrics, Pediatric Intensive Care Unit, Dr von Hauner Children’s Hospital, University Hospital, LMU, Munich, Germany
| | - Julius Z. Wermelt
- Department of Anesthesiology, University Hospital, LMU Munich, Germany
- Department of Anesthesiology, Bürgerhospital und Clementine Kinderhospital gGmbH, Teaching Hospital of the University Frankfurt, Frankfurt, Germany
| | - Belén Pastor-Villaescusa
- Metabolism in Childhood Research Group, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, Córdoba, Spain
| | - Orsolya Genzel-Boroviczény
- Department of Pediatrics, Division of Neonatology, Dr von Hauner Children’s Hospital, University Hospital, LMU Munich, Germany
| | - Claudia Nussbaum
- Department of Pediatrics, Division of Neonatology, Dr von Hauner Children’s Hospital, University Hospital, LMU Munich, Germany
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Ugurlu E, Kilic-Toprak E, Can I, Kilic-Erkek O, Altinisik G, Bor-Kucukatay M. Impaired Hemorheology in Exacerbations of COPD. Can Respir J 2017; 2017:1286263. [PMID: 29089816 PMCID: PMC5635272 DOI: 10.1155/2017/1286263] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 08/07/2017] [Accepted: 08/21/2017] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is characterized by progressive airflow limitation. Cardiovascular-related comorbidities are established to contribute to morbidity and mortality especially during exacerbations. The aim of the current study was to determine alterations in hemorheology (erythrocyte aggregation, deformability) in newly diagnosed COPD patients and their response to medical treatment and to compare with values of COPD patients with exacerbations. MATERIALS AND METHODS The study comprised 13 COPD patients, 12 controls, and 16 COPD patients with exacerbations. The severity of COPD was determined according to Global Initiative for Chronic Obstructive Lung Disease guidelines. Red blood cell (RBC) deformability and aggregation were measured by an ektacytometer. RESULTS RBC deformability of COPD patients with exacerbations was decreased compared to the other groups. Erythrocyte aggregation and plasma fibrinogen of COPD patients determined during exacerbations were higher than control. CONCLUSION Decreased RBC deformability and increased aggregation associated with exacerbations of COPD may serve as unfavorable mechanisms to worsen oxygenation and thus clinical symptoms of the patient. Treatment modalities that modify rheological parameters might be beneficial.
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Affiliation(s)
- Erhan Ugurlu
- Faculty of Medicine, Department of Pulmonology, Pamukkale University, Denizli, Turkey
| | - Emine Kilic-Toprak
- Faculty of Medicine, Department of Physiology, Pamukkale University, Denizli, Turkey
| | - Ilknur Can
- Faculty of Medicine, Department of Pulmonology, Pamukkale University, Denizli, Turkey
| | - Ozgen Kilic-Erkek
- Faculty of Medicine, Department of Physiology, Pamukkale University, Denizli, Turkey
| | - Goksel Altinisik
- Faculty of Medicine, Department of Pulmonology, Pamukkale University, Denizli, Turkey
| | - Melek Bor-Kucukatay
- Faculty of Medicine, Department of Physiology, Pamukkale University, Denizli, Turkey
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Ju M, Leo HL, Kim S. Numerical investigation on red blood cell dynamics in microflow: Effect of cell deformability. Clin Hemorheol Microcirc 2017; 65:105-117. [PMID: 27447420 DOI: 10.3233/ch-16128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The radial dispersion of red blood cells (RBCs) near the vessel wall can significantly affect the transport dynamics in small vessels. The radial dispersion of RBCs is mainly caused by collisions between RBCs and this can be enhanced by aggregation. The objective of this study is to numerically investigate on the effect of RBC deformability on the radial motion of individual RBCs in a range of flow rates. Immersed Boundary - Lattice Boltzmann Method was utilized to study the radial motion of RBCs in a two-dimensional flow domain. The RBC flow simulations were performed at 40% hematocrit in a microvessel with diameter of 25μm and length of 100μm. The dispersion of less deformable RBCs was notably greater than that of normal RBCs at all flow rates and this effect seemed to be more pronounced when the flow rate was increased. The cell dispersion was higher near the vessel wall than the flow center regardless of flow rate and RBCs deformability. Thus, the dispersion of RBCs could be enhanced with flow rate and RBC rigidity. Our findings would be especially useful in investigating blood flows in arterioles and venules.
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Stoyneva Z, Velcheva I, Antonova N, Titianova E, Koleva I. Venoarteriolar reflex responses in diabetic patients. Clin Hemorheol Microcirc 2017; 65:57-65. [PMID: 27716649 DOI: 10.3233/ch-15106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The aim of this study was to investigate the venoarteriolar reflex (VAR) responses in type 1 (T1DM) and type 2 (T2DM) diabetes mellitus (DM) with polyneuropathy and to estimate their relationship with age, DM duration, initial cutaneous temperature and body mass index. Four groups of subjects were investigated: 1st group -20 patients with T1DM; 2nd group -50 patients with T2DM; 3rd group of 20 healthy subjects with similar age and body mass index (BMI) to the T1DM group; 4th group (Control2) of 24 healthy subjects adjusted by age and BMI to the T2DM group. The cutaneous perfusions of the big toe pulp were monitored as baseline perfusions at a temperature of 32°C in supine and sitting position with hanging legs and back in supine position. Loss of venoarteriolar reflex responses was established in 75% of T1DM patients, 78% of T2DM patients and in none of the investigated healthy controls. Reduced venoarteriolar perfusion responses were established in both T1DM and T2DM patients with polyneuropathy compared with healthy subjects. Reliable positive associations between VAR responses and the age, DM duration and initial cutaneous temperature were found.
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Affiliation(s)
- Z Stoyneva
- Department of Neurology, University Hospital St. Ivan Rilsky - Sofia, Medical Universities of Sofia and Plovdiv, Bulgaria
| | - I Velcheva
- Department of Neurology, University Hospital of Neurology and Psychiatry, Medical University, Sofia, Bulgaria
| | - N Antonova
- Department of Biomechanics, Institute of Mechanics, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - E Titianova
- Clinic of Functional Diagnostics of the Nervous System, Military Medical Academy, Sofia, Bulgaria
| | - I Koleva
- Department of Medical Rehabilitation and Occupational Therapy, Medical University, Sofia, Bulgaria
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Filar-Mierzwa K, Marchewka A, Bac A, Kulis A, Dąbrowski Z, Teległów A. Effects of dance therapy on the selected hematological and rheological indicators in older women. Clin Hemorheol Microcirc 2017; 66:157-165. [PMID: 28372321 DOI: 10.3233/ch-160241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The aim of this study was to analyze the effects of dance therapy on selected hematological and rheological indicators in older women. METHODS The study included 30 women (aged 71.8±7.4), and the control group comprised of 10 women of corresponding age. Women from the experimental group were subjected to a five-month dance therapy program (three 45-minute sessions per week); women from the control group were not involved in any regular physical activity. Blood samples from all the women were examined for hematological, rheological, and biochemical parameters prior to the study and five months thereafter. RESULTS The dance therapy program was reflected by a significant improvement of erythrocyte count and hematocrit. Furthermore, the dance therapy resulted in a significant increase in the plasma viscosity, while no significant changes in glucose and fibrinogen levels were noted. CONCLUSIONS Dance therapy modulates selected hematological parameters of older women; it leads to increase in erythrocyte count and hematocrit level. Dance therapy is reflected by higher plasma viscosity. Concentrations of fibrinogen and glucose are not affected by the dance therapy in older women, suggesting maintenance of homeostasis. Those findings advocate implementation of dance therapy programs in older women.
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Affiliation(s)
| | - Anna Marchewka
- Department of Clinical Rehabilitation, University of Physical Education, Cracow, Poland
| | - Aneta Bac
- Department of Occupational Therapy, University of Physical Education, Cracow, Poland
| | - Aleksandra Kulis
- Department of Occupational Therapy, University of Physical Education, Cracow, Poland
| | - Zbigniew Dąbrowski
- Department of Clinical Rehabilitation, University of Physical Education, Cracow, Poland
| | - Aneta Teległów
- Department of Clinical Rehabilitation, University of Physical Education, Cracow, Poland
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de León Patricia P, Martín T, Horacio C, Bibiana R. In vitro alterations of erythrocyte aggregation by action of Trichinella spiralis newborn larvae. Clin Hemorheol Microcirc 2017; 65:195-204. [DOI: 10.3233/ch-16158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | - Toderi Martín
- Facultad Cs. B ioquímicas y Farmacéuticas (UNR), Suipacha, Rosario, Argentina
- Facultad de Cs. Exactas, Ingeniería y Agrimensura (UNR), Pellegrini, Rosario, Argentina
- Óptica Aplicada a la Biología, Instituto de Física Rosario (CONICET-UNR), Boulevard 27 de febrero 210 bis, Rosario, Argentina
| | - Castellini Horacio
- Facultad de Cs. Exactas, Ingeniería y Agrimensura (UNR), Pellegrini, Rosario, Argentina
| | - Riquelme Bibiana
- Facultad Cs. B ioquímicas y Farmacéuticas (UNR), Suipacha, Rosario, Argentina
- Óptica Aplicada a la Biología, Instituto de Física Rosario (CONICET-UNR), Boulevard 27 de febrero 210 bis, Rosario, Argentina
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Stoyneva Z, Velcheva I, Antonova N, Titianova E. Microvascular reactivity to thermal stimulation in patients with diabetes mellitus and polyneuropathy. Clin Hemorheol Microcirc 2017; 65:67-75. [DOI: 10.3233/ch-15107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Z. Stoyneva
- Department of Neurology, University Hospital St. Ivan Rilsky – Sofia, Medical Universities of Sofia and Plovdiv, Bulgaria
| | - I. Velcheva
- Department of Neurology, University Hospital of Neurology and Psychiatry, Medical University, Sofia, Bulgaria
| | - N. Antonova
- Department of Biomechanics, Institute of Mechanics, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - E. Titianova
- Clinic of Functional Diagnostics of the Nervous System, Military Medical Academy, Sofia, Bulgaria
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Nemeth N, Peto K, Deak A, Sogor V, Varga G, Tanczos B, Balog K, Csiszko A, Godo Z, Szentkereszty Z. Hemorheological factors can be informative in comparing treatment possibilities of abdominal compartment syndrome. Clin Hemorheol Microcirc 2017; 64:765-775. [DOI: 10.3233/ch-168027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Norbert Nemeth
- Department of Operative Techniques & Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Katalin Peto
- Department of Operative Techniques & Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Adam Deak
- Department of Operative Techniques & Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Viktoria Sogor
- Department of Operative Techniques & Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Gabor Varga
- Department of Operative Techniques & Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Bence Tanczos
- Department of Operative Techniques & Surgical Research, Faculty of Medicine, University of Debrecen, Hungary
| | - Klaudia Balog
- Institute of Surgery, Faculty of Medicine, University of Debrecen, Hungary
| | - Adrienn Csiszko
- Institute of Surgery, Faculty of Medicine, University of Debrecen, Hungary
| | - Zoltan Godo
- Department of Information Technology, Faculty of Informatics, University of Debrecen, Hungary
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Jung F, Rampling M. Role of blood viscosity in the microcirculation. Clin Hemorheol Microcirc 2017; 64:251-254. [DOI: 10.3233/ch-168108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- F. Jung
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - M. Rampling
- Department of Bioengineering, Imperial College, London, UK
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Smith MM, Lucas AR, Hamlin RL, Devor ST. Associations among hemorheological factors and maximal oxygen consumption. Is there a role for blood viscosity in explaining athletic performance? Clin Hemorheol Microcirc 2016; 60:347-62. [PMID: 23514971 DOI: 10.3233/ch-131708] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study examined the relationship between hematocrit, blood viscosity, plasma viscosity, erythrocyte deformability, and fibrinogen concentration during maximal oxygen uptake in aerobically trained (AT) and resistance trained (RT) athletes. Maximal oxygen uptake was assessed using a Bruce graded exercise treadmill test to exhaustion, and blood samples were collected at rest and immediately following exercise using a venous catheter. Viscometric analyses were performed using a cone and plate viscometer at varying shear rates. Hematocrit was measured as the fraction of erythrocytes suspended in plasma following centrifugation. Erythrocyte rigidity was estimated using the Dintenfass index of red blood cell rigidity. Following maximal treadmill exercise, an increase of blood viscosity at varying shear rates (22.50, 45.00, 90.00, and 225.00 s- 1; P < 0.05) was observed in RT athletes only. Plasma viscosity @ 225.00 s- 1 (1.88 ± 0.09 vs. 1.78 ± 0.03 mPa.s; P < 0.05), erythrocyte rigidity (0.52 ± 0.08 vs. 0.40 ± 0.09; P < 0.05), and plasma fibrinogen (434 ± 7 vs. 295 ± 25 mg/dL; P < 0.01) were all significantly greater in RT than AT athletes following maximal exercise. In summary, AT, but not RT, is associated with a hemorheological profile that promotes both oxygen transport and delivery. The results indicate that hematocrit alone should not be the focus of training and ergogenic supplementation to increase aerobic performance.
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Affiliation(s)
- Michael M Smith
- Department of Human Sciences - Kinesiology Program, The Ohio State University, Columbus, OH, USA
| | - Alexander R Lucas
- Department of Human Sciences - Kinesiology Program, The Ohio State University, Columbus, OH, USA
| | - Robert L Hamlin
- College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Steven T Devor
- Department of Human Sciences - Kinesiology Program, The Ohio State University, Columbus, OH, USA
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Słoczyńska K, Kózka M, Marona H. Rheological properties of young and aged erythrocytes in chronic venous disease patients with varicose veins. Clin Hemorheol Microcirc 2016; 60:171-8. [PMID: 23594503 DOI: 10.3233/ch-131715] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We hypothesize that heterogeneity in RBC rheology can be attributed not only to the aging process but also to various disease states. The present study aims at investigating the rheological properties of young and old RBC in chronic venous disease (CVD) patients. RBC were separated on the basis of their density. RBC rheology was assessed with Laser Optical Rotational Cell Analyzer. For medium and high shear stress elongation index (EI) of young RBC from CVD patients was significantly higher than of young cells from controls. The same was observed for the old cells. Threshold shear rate (THR) of young RBC from CVD patients was significantly higher than of young cells from controls indicating a decreased tendency towards the formation of aggregates and of their stability in CVD patients. The same situation was observed for the old cells. To sum up, the present study demonstrated that heterogeneity in RBC rheology is both affected by age and CVD. Additionally, CVD-induced changes in RBC rheology occur to different degrees among the subpopulations of young and old RBC. CVD patients subpopulations of RBC had higher deformability and increased tendency towards aggregates formation and of their stability when compared to appropriate subpopulations of controls.
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Affiliation(s)
- Karolina Słoczyńska
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Cracow, Poland
| | - Mariusz Kózka
- 5th Military Hospital with Polyclinic, Cracow, Poland
| | - Henryk Marona
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Cracow, Poland
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Dong Y, Wang WP, Lin P, Fan P, Mao F. Assessment of renal perfusion with contrast-enhanced ultrasound: Preliminary results in early diabetic nephropathies. Clin Hemorheol Microcirc 2016; 62:229-38. [PMID: 26444598 DOI: 10.3233/ch-151967] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE We performed a prospective study to evaluate the value of contrast-enhanced ultrasound (CEUS) in quantitative evaluation of renal cortex perfusion in patients suspected of early diabetic nephropathies (DN), with the estimated GFR (MDRD equation) as the gold standard. METHODS The study protocol was approved by the hospital review board; each patient gave written informed consent. Our study included 46 cases (21 males and 25 females, mean age 55.6 ± 4.14 years) of clinical confirmed early DN patients. After intravenous bolus injection of 1 ml sulfur hexafluoride microbubbles of ultrasound contrast agent, real time CEUS of renal cortex was performed successively using a 2-5 MHz convex probe. Time-intensity curves (TICs) and quantitative indexes were created with Qlab software. Receiver operating characteristic (ROC) curves were used to predict the diagnostic criteria of CEUS quantitative indexes, and their diagnostic efficiencies were compared with resistance index (RI) and peak systolic velocity (PSV) of renal segmental arteries by chi square test. Our control group included forty-five healthy volunteers. Difference was considered statistically significant with P < 0.05. RESULTS Changes of area under curve (AUC), derived peak intensity (DPI) were statistically significant (P < 0.05). DPI less than 12 and AUC greater than 1400 had high utility in DN, with 71.7% and 67.3% sensitivity, 77.8% and 80.0% specificity. These results were significantly better than those obtained with RI and PSV which had no significant difference in early stage of DN (P > 0.05). CONCLUSIONS CEUS might be helpful to improve early diagnosis of DN by quantitative analyses. AUC and DPI might be valuable quantitative indexes.
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Affiliation(s)
- Yi Dong
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wen-Ping Wang
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Pan Lin
- Department of Nephrology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Peili Fan
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Feng Mao
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
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Hu F, Wang Y, Gong K, Ge G, Cao M, Zhao P, Sun X, Zhang Z. Protective effects of drag-reducing polymers on ischemic reperfusion injury of isolated rat heart. Clin Hemorheol Microcirc 2016; 62:1-11. [PMID: 25633566 DOI: 10.3233/ch-151925] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Drag-reducing polymers (DRPs) are blood-soluble macromolecules that can increase blood flow and reduce vascular resistance. The purpose of the present study was to observe the effect of DRPs on ischemic reperfusion (I/R) injury of isolated rat hearts. Experiments were performed on isolated rat hearts subjected to 30 min of ischemia followed by 90 min of reperfusion in Langendorff preparations. Adult Wistar rats were divided into the following five groups: control group, I/R group, group III (I/R and 2×10(-7) g/ml PEO reperfusion), group IV (I/R and 1×10(-6) g/ml PEO reperfusion), and group V (I/R and 5×10(-6) g/ml PEO reperfusion). Left ventricular end-diastolic pressure (LVEDP), left ventricular systolic pressure (LVSP), maximum rate of ventricular pressure increase and decrease ( ± dp/dtmax), heart rate (HR) and coronary flow were measured. Lactate dehydrogenase (LDH) and creatine kinase (CK) activity and coronary flow, myocardial infarction size and cardiomyocytes apoptosis were also assayed. Our results showed that PEO decreased LVEDP and increased LVSP, ± dP/dtmax in group IV and group V compared with the I/R group (all P < 0.05). The coronary flow significantly increased and the activities of LDH and CK in the coronary flow significantly decreased in group IV and group V compared with those in the I/R group (all P < 0.05). Cell apoptosis and myocardial infarction size were reduced in group IV and group V compared with the I/R group (all P < 0.05). Collectively, these results suggested that DRPs had a protective effect on cardiac I/R injury of isolated rat hearts and it may offer a new potential approach for the treatment of acute ischemic heart diseases.
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Kilic-Toprak E, Toprak I, Kilic-Erkek O, Kucukatay V, Bor-Kucukatay M. Increased erythrocyte aggregation in patients with primary open angle glaucoma. Clin Exp Optom 2016; 99:544-549. [PMID: 27102870 DOI: 10.1111/cxo.12388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 02/06/2016] [Accepted: 02/08/2016] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND The rationale of this study is to determine alterations in blood rheology (erythrocyte aggregation and deformability) and relationship between structural measurements obtained from optical coherence tomography (OCT) in different stages of primary open angle glaucoma (POAG). METHODS This prospective controlled study comprised 23 POAG patients (glaucoma group) and 23 age- and sex-matched healthy subjects (control group). Elongation index (EI), which is the indicator of erythrocyte deformability and erythrocyte aggregation was measured using an ektacytometer. Optic nerve head (ONH) morphology and peripapillary retinal nerve fibre layer (RNFL) thickness were evaluated using a spectral domain (SD) OCT. RESULTS There were no significant differences between the groups regarding the elongation index values (p > 0.05). On the other hand, erythrocyte aggregation amplitude (AMP) and mean corpuscular haemoglobin concentration (MCHC) were significantly higher in the glaucoma group than in the control group (p = 0.015, p = 0.003 respectively). A significant correlation was also found between the elongation index and retinal nerve fibre layer (average and superior) thickness (p < 0.05) in patients with late glaucoma. CONCLUSIONS In patients with POAG, erythrocyte aggregation appears to be higher. It can be speculated that higher erythrocyte aggregation and deformability may be involved in the pathogenesis of glaucoma by affecting microperfusion of the optic nerve head and retina. Modification of rheological parameters in patients with glaucoma may be considered as an adjuvant future therapy in glaucoma management, whereas further studies in larger groups are needed.
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Affiliation(s)
- Emine Kilic-Toprak
- Department of Physiotherapy, Denizli Health Services Vocational High School, Pamukkale University, Denizli, Turkey. .,Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey.
| | - Ibrahim Toprak
- Department of Ophthalmology, Servergazi State Hospital, Denizli, Turkey
| | - Ozgen Kilic-Erkek
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Vural Kucukatay
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Melek Bor-Kucukatay
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
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Sloop GD, Bialczak JK, Weidman JJ, St. Cyr J. Uric acid increases erythrocyte aggregation: Implications for cardiovascular disease. Clin Hemorheol Microcirc 2016; 63:349-359. [DOI: 10.3233/ch-152023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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41
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Kózka M, Słoczyńska K, Szkaradek N, Waszkielewicz AM, Pękala E, Marona H. Effect of some newly synthesized xanthone and piperazine derivatives with cardiovascular activity on rheology of human erythrocytes in vitro. Clin Hemorheol Microcirc 2016; 67:1-14. [PMID: 27567798 DOI: 10.3233/ch-16001a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This in vitro study was designed to examine the effect of some newly synthesized aminoalcanolic derivatives of xanthone (I, II) and aroxyalkyl derivatives of 2-methoxyphenylpiperazine (III, IV) having cardiovascular activity on the haemorheological parameters of RBCs from healthy individuals and patients with chronic venous disease. Additionally, the influence of compounds I-IV on some RBCs associated enzymes such as acetylcholinesterase (Ache), glucose-6-phosphate dehydrogenase (G6PD) and glutathione reductase (GR) as well as glutathione (GSH) content were determined in vitro in RBCs from healthy subjects. The study showed that compounds I, III and IV significantly increased RBCs deformability. Moreover, both xanthone derivatives reduced RBCs aggregation and diminished RBCs aggregates strength in all RBCs groups. Compounds II and III significantly improved Ache activity, whereas compounds I and II increased G6PD and GR activity and GSH level. In conclusion, compounds I, III and IV, which significantly improved RBCs deformability in vitro, may facilitate the passage of blood in the vascular system. Additionally, compounds I and II which inhibit RBCs aggregates formation in vitro may contribute to more rapid degradation of red blood cell aggregates in circulating blood.
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Affiliation(s)
- Mariusz Kózka
- Department of General Surgery, Division of Vascular Surgery, 5th Military Hospital with Polyclinic, Krakow, Poland
| | - Karolina Słoczyńska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Natalia Szkaradek
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Anna M Waszkielewicz
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Elżbieta Pękala
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Henryk Marona
- Department of Bioorganic Chemistry, Chair of Organic Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
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42
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Ballas SK, Connes P. The paradox of the serrated sickle erythrocyte: The importance of the red blood cell membrane topography. Clin Hemorheol Microcirc 2016; 63:149-52. [DOI: 10.3233/ch-152014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Samir K. Ballas
- Cardeza Foundation for hematologic Research, Department of Medicine, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Philippe Connes
- Laboratory CRIS-EA 647 –Section “Vascular Biology and Red Blood Cell”, University Claude Bernard Lyon 1, Villeurbanne, France
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43
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Kaliviotis E, Dusting J, Sherwood JM, Balabani S. Quantifying local characteristics of velocity, aggregation and hematocrit of human erythrocytes in a microchannel flow. Clin Hemorheol Microcirc 2016; 63:123-48. [DOI: 10.3233/ch-151980] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Efstathios Kaliviotis
- Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol, Cyprus
- Department of Mechanical Engineering, University College London, UK
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Gerk U, Franke R, Jung F. Effect of radiographic contrast media (Iodixanol, Iobitridol) on hemolysis. ACTA ACUST UNITED AC 2016. [DOI: 10.3233/jcb-15018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- U. Gerk
- Krankenhaus Dresden-Friedrichstadt, II. Medizinische Klinik, Dresden
| | - R.P. Franke
- University of Ulm, ZBMT, Department of Biomaterials, Ulm, Germany
| | - F. Jung
- Institute for Clinical Hemostasiology and Transfusion Medicine, University of Saarland, Homburg/Saar, Germany
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45
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Kim HJ, Yoo SM, Chung JH, Kim TS, Lee SH, Son HS. Evaluation of fluid warmer safety using hemorheologic analysis with outdated human blood. Clin Hemorheol Microcirc 2016; 62:13-7. [DOI: 10.3233/ch-151926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hee Jung Kim
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Korea University, Seoul, South Korea
| | | | - Jae Ho Chung
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Korea University, Seoul, South Korea
| | - Tae Sik Kim
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Korea University, Seoul, South Korea
| | - Sung Ho Lee
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Korea University, Seoul, South Korea
| | - Ho Sung Son
- Department of Thoracic and Cardiovascular Surgery, College of Medicine, Korea University, Seoul, South Korea
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46
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Marchewka A, Filar-Mierzwa K, Dąbrowski Z, Teległó A. Effects of rhythmic exercise performed to music on the rheological properties of blood in women over 60 years of age. Clin Hemorheol Microcirc 2015; 60:363-73. [DOI: 10.3233/ch-131793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Anna Marchewka
- Department of Clinical Rehabilitation, University School of Physical Education in Cracow, Cracow, Poland
| | - Katarzyna Filar-Mierzwa
- Department of Theory and Methodology of Gymnastics, University School of Physical Education in Cracow, Cracow, Poland
| | - Zbigniew Dąbrowski
- Department of Clinical Rehabilitation, University School of Physical Education in Cracow, Cracow, Poland
| | - Aneta Teległó
- Department of Clinical Rehabilitation, University School of Physical Education in Cracow, Cracow, Poland
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47
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Cordina M, Bhatti S, Fernandez M, Syngelaki A, Nicolaides KH, Kametas NA. Association between maternal haemoglobin at 27–29weeks gestation and intrauterine growth restriction. Pregnancy Hypertens 2015; 5:339-45. [DOI: 10.1016/j.preghy.2015.09.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 07/24/2015] [Accepted: 09/21/2015] [Indexed: 10/23/2022]
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48
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Lamarre Y, Hardy-Dessources MD, Romana M, Lalanne-Mistrih ML, Waltz X, Petras M, Doumdo L, Blanchet-Deverly A, Martino J, Tressières B, Maillard F, Tarer V, Etienne-Julan M, Connes P. Relationships between systemic vascular resistance, blood rheology and nitric oxide in children with sickle cell anemia or sickle cell-hemoglobin C disease. Clin Hemorheol Microcirc 2015; 58:307-16. [PMID: 23302597 DOI: 10.3233/ch-121661] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Vascular function has been found to be impaired in patients with sickle cell disease (SCD). The present study investigated the determinants of systemic vascular resistance in two main SCD syndromes in children: sickle cell anemia (SCA) and sickle cell-hemoglobin C disease (SCC). Nitric oxide metabolites (NOx), hematological, hemorheological, and hemodynamical parameters were investigated in 61 children with SCA and 49 children with SCC. While mean arterial pressure was not different between SCA and SCC children, systemic vascular resistance (SVR) was greater in SCC children. Although SVR and blood viscosity (ηb) were not correlated in SCC children, the increase of ηb (+18%) in SCC children compared to SCA children results in a greater mean SVR in this former group. SVR was positively correlated with ηb, hemoglobin (Hb) level and RBC deformability, and negatively with NOx level in SCA children. Multivariate linear regression model showed that both NOx and Hb levels were independently associated with SVR in SCA children. In SCC children, only NOx level was associated with SVR. In conclusion, vascular function of SCC children seems to better cope with higher ηb compared to SCA children. Since the occurrence of vaso-occlusive like complications are less frequent in SCC than in SCA children, this finding suggests a pathophysiological link between the vascular function alteration and these clinical manifestations. In addition, our results suggested that nitric oxide metabolism plays a key role in the regulation of SVR, both in SCA and SCC.
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Affiliation(s)
- Yann Lamarre
- Inserm U665, Pointe-à-Pitre, F-97159 Guadeloupe, Université des Antilles et de la Guyane, Guadeloupe
| | | | - Marc Romana
- Inserm U665, Pointe-à-Pitre, F-97159 Guadeloupe, Université des Antilles et de la Guyane, Guadeloupe
| | - Marie-Laure Lalanne-Mistrih
- Inserm U665, Pointe-à-Pitre, F-97159 Guadeloupe, Université des Antilles et de la Guyane, Guadeloupe CIC-EC 802 Inserm, pôle Guadeloupe, Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Xavier Waltz
- Inserm U665, Pointe-à-Pitre, F-97159 Guadeloupe, Université des Antilles et de la Guyane, Guadeloupe
| | - Marie Petras
- Unité Transversale de la Drépanocytose du Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France Centre de référence maladies rare pour la drépanocytose aux Antilles-Guyane, Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Lydia Doumdo
- Unité Transversale de la Drépanocytose du Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France Centre de référence maladies rare pour la drépanocytose aux Antilles-Guyane, Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Anne Blanchet-Deverly
- Unité d'explorations cardiovasculaire du Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Jean Martino
- Service de cardiologie du Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Benoît Tressières
- CIC-EC 802 Inserm, pôle Guadeloupe, Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Frederic Maillard
- Unité Transversale de la Drépanocytose du Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France Service de Pédiatrie du Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France Centre de référence maladies rare pour la drépanocytose aux Antilles-Guyane, Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Vanessa Tarer
- Unité Transversale de la Drépanocytose du Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France Centre de référence maladies rare pour la drépanocytose aux Antilles-Guyane, Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Maryse Etienne-Julan
- Inserm U665, Pointe-à-Pitre, F-97159 Guadeloupe, Université des Antilles et de la Guyane, Guadeloupe Unité Transversale de la Drépanocytose du Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France Centre de référence maladies rare pour la drépanocytose aux Antilles-Guyane, Centre Hospitalier et Universitaire de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Philippe Connes
- Inserm U665, Pointe-à-Pitre, F-97159 Guadeloupe, Université des Antilles et de la Guyane, Guadeloupe
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49
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Broz P, Aschwanden M, Partovi S, Schulte AC, Benz D, Takes M, Walker UA, Bilecen D, Jaeger KA, Stephan Imfeld, Staub D. Assessment of cutaneous microcirculation in unaffected skin regions by transcutaneous oxygen saturation monitoring and Laser Doppler flowmetry in systemic sclerosis. Clin Hemorheol Microcirc 2015; 60:263-71. [DOI: 10.3233/ch-131676] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Pavel Broz
- Department of Angiology, University Hospital Basel, Basel, Switzerland
| | - Markus Aschwanden
- Department of Angiology, University Hospital Basel, Basel, Switzerland
| | - Sasan Partovi
- Department of Radiology, University Hospital Basel, Basel, Switzerland
| | | | - Daniela Benz
- Department of Rheumatology, University of Basel, Felix Platter Spital, Basel, Switzerland
| | - Martin Takes
- Department of Radiology, University Hospital Basel, Basel, Switzerland
| | - Ulrich A. Walker
- Department of Rheumatology, University of Basel, Felix Platter Spital, Basel, Switzerland
| | - Deniz Bilecen
- Department of Radiology, University Hospital Basel, Basel, Switzerland
| | - Kurt A. Jaeger
- Department of Angiology, University Hospital Basel, Basel, Switzerland
| | - Stephan Imfeld
- Department of Angiology, University Hospital Basel, Basel, Switzerland
| | - Daniel Staub
- Department of Angiology, University Hospital Basel, Basel, Switzerland
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50
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