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Zhang Z, Wang Y, Zhang C, Zhan W, Zhang Q, Xue L, Xu Z, Peng N, Jiang Z, Ye Z, Liu M, Zhang X. Cilia-Inspired Magnetic Flexible Shear Force Sensors for Tactile and Fluid Monitoring. ACS APPLIED MATERIALS & INTERFACES 2024; 16:50524-50533. [PMID: 39266047 DOI: 10.1021/acsami.4c12957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/14/2024]
Abstract
Recently, there has been a burgeoning interest in flexible shear force sensors capable of precisely detecting both magnitude and direction. Despite considerable efforts, the challenge of achieving accurate direction recognition persists, primarily due to the inherent structural characteristics and sensing mechanisms. Here, we present a shear force sensor constructed by a magnetically induced assembled Ni/PDMS composite membrane, which is magnetized and integrated with a three-axis Hall sensor, facilitating its ability to simultaneously monitor both shear force magnitude (0.7-87 mN) and direction (0-360°). The cilia-inspired shear force magnetic sensor (CISFMS) exhibits admirable attributes, including exceptional flexibility, high sensitivity (0.76 mN-1), an exceedingly low detection limit (1° and 0.7 mN), and remarkable durability (over 10,000 bending cycles). Further, our results demonstrate the capacity of the CISFMS in detecting tactile properties, fluid velocity, and direction, offering substantial potential for future developments in wearable electronics.
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Affiliation(s)
- Zeying Zhang
- State Key Laboratory for Manufacturing Systems Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-End Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, P. R. China
- State Key Laboratory for Manufacturing Systems Engineering, Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Engineering Research Center of Spin Quantum Sensor Chips, Universities of Shaanxi Province, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yijing Wang
- State Key Laboratory for Manufacturing Systems Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-End Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, P. R. China
| | - Cuiling Zhang
- State Key Laboratory for Manufacturing Systems Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-End Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, P. R. China
| | - Wang Zhan
- State Key Laboratory for Manufacturing Systems Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-End Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, P. R. China
| | - Qi Zhang
- State Key Laboratory for Manufacturing Systems Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-End Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, P. R. China
| | - Li Xue
- State Key Laboratory for Manufacturing Systems Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-End Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, P. R. China
| | - Zhe Xu
- State Key Laboratory for Manufacturing Systems Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-End Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, P. R. China
| | - Niancai Peng
- State Key Laboratory for Manufacturing Systems Engineering, School of Instrument Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-End Equipment, Xi'an Jiaotong University, Xi'an 710054, P. R. China
| | - Zhuangde Jiang
- State Key Laboratory for Manufacturing Systems Engineering, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Jiaotong University, Xi'an 7100049, Shaanxi, P. R. China
| | - Zhilu Ye
- State Key Laboratory for Manufacturing Systems Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-End Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, P. R. China
| | - Ming Liu
- State Key Laboratory for Manufacturing Systems Engineering, Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Engineering Research Center of Spin Quantum Sensor Chips, Universities of Shaanxi Province, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xiaohui Zhang
- State Key Laboratory for Manufacturing Systems Engineering, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Center for Mitochondrial Biology and Medicine, School of Life Science and Technology, International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology, Xi'an Key Laboratory for Biomedical Testing and High-End Equipment, Xi'an Jiaotong University, Xi'an 710049, Shannxi, P. R. China
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Yang S, Liu Y, Chen B, Mi J, Tai X, Ma W. Epidemiology of Canine Wei Syndrome and Its Hemorheology Characteristics. Animals (Basel) 2024; 14:2658. [PMID: 39335249 PMCID: PMC11428416 DOI: 10.3390/ani14182658] [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: 06/03/2024] [Revised: 08/29/2024] [Accepted: 09/04/2024] [Indexed: 09/30/2024] Open
Abstract
Canine paraplegia is a common condition in small animal medicine, referred to as Wei Syndrome (WS) in Traditional Chinese Veterinary Medicine (TCVM). Common clinical manifestations encompass hind limb paralysis, motor dysfunction, muscle atrophy, and the absence of pain perception. WS is considered a difficult-to-treat disease in small animal practice. The objective of this study was to investigate the epidemiology of canine WS and the characteristics of hemorheology. A total of 53 dogs with WS and 53 healthy dogs were included in this study. A retrospective case-controlled study design was employed. Data regarding the gender, season of WS occurrence, breed, and age of dogs with WS, as well as hemorheology from dogs with WS and healthy dogs, were collected and analyzed using SPSS 27.0. The study findings revealed that male dogs were more susceptible to WS (77.36%, 41/53). WS cases occurred more frequently in Winter (33.96%, 18/53), and were commonly found in Poodle breeds (43.40%, 23/53). The most affected age of WS was between 3 and 6 years old (54.72%, 29/53). Except for plasma viscosity and fibrinogen, the hemorheology indices of canine WS were significantly higher than those of healthy dogs (p < 0.05), especially in male dogs, Poodles and Bulldogs, those between 3 to 10 years, and in Autumn and Winter. This study provides evidence that male Poodles and Bulldogs aged 3 to 6 years are more prone to developing WS, with Winter being the season of high disease incidence. Abnormal hemorheology is a characteristic feature in dogs with WS, which should be considered during the treatment of WS.
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Affiliation(s)
- Shuo Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Yuting Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Bingjie Chen
- Xi'an Veterinary Teaching Hospital, Northwest A&F University, Xi'an 710065, China
| | - Jie Mi
- Xi'an Veterinary Teaching Hospital, Northwest A&F University, Xi'an 710065, China
| | - Xiangbo Tai
- Xi'an Veterinary Teaching Hospital, Northwest A&F University, Xi'an 710065, China
| | - Wuren Ma
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
- Xi'an Veterinary Teaching Hospital, Northwest A&F University, Xi'an 710065, China
- Institute of Traditional Chinese Veterinary Medicine, Northwest A&F University, Yangling 712100, China
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Morton WJ, Hauge A, Opdahl H, Rein EB, Søvik S, Hisdal J. Nine treatments of 1000 mL therapeutic phlebotomy in a subject with polycythemia: A case report. Physiol Rep 2024; 12:e16035. [PMID: 38844733 PMCID: PMC11156522 DOI: 10.14814/phy2.16035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 04/17/2024] [Accepted: 04/17/2024] [Indexed: 06/10/2024] Open
Abstract
Large-volume therapeutic phlebotomy is the mainstay of hemochromatosis treatment and offers an opportunity to investigate the hemodynamic changes during acute hypovolemia. An otherwise healthy 64-year-old male with hemochromatosis participated. On nine separate visits, 1000 mL therapeutic phlebotomy was performed. On one occasion, pre- and post-phlebotomy orthostatic challenge with 27° reverse Trendelenburg position was administered. Mean arterial pressure, heart rate, and stroke volume were measured continuously during the procedures. The patient's tolerance to the interventions was continuously evaluated. The procedures were well tolerated by the patient. Mean arterial pressure was maintained during hemorrhage and following phlebotomy in both supine and reverse Trendelenburg positions, primarily through an increase in heart rate and systemic vascular resistance. The present study found that 1000 mL therapeutic phlebotomy in a patient with hemochromatosis may be acceptably and safely used to model hemorrhage. The approach demonstrates high clinical applicability and ethically robustness in comparison with volunteer studies.
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Affiliation(s)
- William J. Morton
- Department of AnaesthesiaAkershus University HospitalLørenskogNorway
- Institute of Clinical MedicineFaculty of MedicineUniversity of OsloOsloNorway
- Department of Vascular SurgeryOslo University HospitalOsloNorway
| | - Anton Hauge
- Institute of Clinical MedicineFaculty of MedicineUniversity of OsloOsloNorway
| | - Helge Opdahl
- Department of Acute Medicine, The Norwegian National CBRNE Medical and Advisory CentreOslo University HospitalOsloNorway
| | | | - Signe Søvik
- Department of AnaesthesiaAkershus University HospitalLørenskogNorway
- Institute of Clinical MedicineFaculty of MedicineUniversity of OsloOsloNorway
| | - Jonny Hisdal
- Institute of Clinical MedicineFaculty of MedicineUniversity of OsloOsloNorway
- Department of Vascular SurgeryOslo University HospitalOsloNorway
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Kaplangoray M, Toprak K, Aydın C, Cekici Y, Yıldırım A, Ozcan Abacıoglu O. The MAPH Score Predicts Coronary Slow Flow. A Retrospective Case-Controlled Study. KARDIOLOGIIA 2024; 64:67-72. [PMID: 38462806 DOI: 10.18087/cardio.2024.2.n2322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/25/2022] [Indexed: 03/12/2024]
Abstract
AIM The MAPH score is a new score that combines mean platelet volume (MPV), hematocrit, and total protein, which are markers of whole blood viscosity (WBV). We aimed to investigate the relationship between the MAPH score and the coronary slow flow phenomenon (CSF). MATERIAL AND METHODS A total of 201 patients were included in the study. 105 had CSF and 96 had normal coronary flow (NCF). Coronary flow was measured by the Thrombolysis in Myocardial Infarction frame count (TFC) method. The patients' MPV, age, hematocrit, and total protein were recorded. High (HSR) and low shear rates (LSR) were calculated, based on total protein and hematocrit values. Cut-off values for CSF were determined using the Youden's index, and the score was determined as 0 or 1 according to the cut-off values. The sum of these scores was the MAPH score. RESULTS The mean age of the patients included in the study was 51.1±7.9 (n=201, 54.2 % male). Hyperlipidemia, DM, and HT rates of both groups were similar, but the mean age of the CSF group was higher (p=0.773; p=0.549; p=0.848; p <0.001, respectively). Total protein, MPV, hematocrit, HSR and LSR were higher in the CSF group (p< 0.001, for all values). Comparative receiver operating characteristic (ROC) curve analysis showed that the performance of the MAPH score in predicting CSF is better than the performance of these parameters separately. CONCLUSION A new score, the MAPH score, may be used to identify the presence of CSF.
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Affiliation(s)
| | - Kenan Toprak
- Republic of Turkey Ministry of Health Siverek State Hospital
| | - Cihan Aydın
- Tekirdag Namık Kemal University, Department of Cardiology
| | - Yusuf Cekici
- University of Health Sciences, Adana Health Practice and Research Center
| | - Arafat Yıldırım
- University of Health Sciences, Adana Health Practice and Research Center
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Sidekhmenova AV, Aliev OI, Anishchenko AM, Dunaeva OI, Ulyakhina OA, Plotnikov MB. Influence of a Decrease in Blood Viscosity on Arterial Pressure in Normotensive and Spontaneously Hypertensive Rats. Bull Exp Biol Med 2024; 176:419-422. [PMID: 38488961 DOI: 10.1007/s10517-024-06038-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Indexed: 03/17/2024]
Abstract
We investigated the effect of a decrease in blood viscosity on the mean BP during isovolumic hemodilution and vasodilating activity of the endothelium in normotensive Wistar rats and spontaneously hypertensive rats (SHR). Blood viscosity was reduced by isovolumic hemodilution (replacement of 10% of circulating blood with an equal volume of plasma). Hemodilution caused the same reduction in blood viscosity by 16% in both groups of rats. In Wistar rats, a decrease in blood viscosity did not significantly change in the mean BP; no significant correlations between blood viscosity and mean BP were observed before and after hemodilution. In SHR, a decrease in blood viscosity led to a significant decrease in the mean BP by 18%. Correlations were found between the mean BP and blood viscosity in SHR before (r=0.63; p=0.028) and after (r=0.71; p=0.009) isovolumic hemodilution. In SHR, a decrease in the index of vasodilating activity of the endothelium due to a decrease in the vasodilatory response to intravenous administration of the endothelium-dependent vasodilator acetylcholine was revealed. In SHR, BP passively follows the change, in this case, the decrease in blood viscosity, which attests to impaired BP regulation in response to changes in shear stress on the vascular endothelium caused by the development of endothelial dysfunction in hypertensive animals.
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Affiliation(s)
- A V Sidekhmenova
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia.
| | - O I Aliev
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - A M Anishchenko
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
- Siberian State Medical University, Ministry of Health of the Russian Federation, Tomsk, Russia
| | - O I Dunaeva
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - O A Ulyakhina
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - M B Plotnikov
- E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
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Lamb DR, Greenfield A, Thangaraju K, Setua S, Eiker G, Wang Q, Vahedi A, Khan MA, Yahya A, Cabrales P, Palmer AF, Buehler PW. The Molecular Size of Bioengineered Oxygen Carriers Determines Tissue Oxygenation in a Hypercholesterolemia Guinea Pig Model of Hemorrhagic Shock and Resuscitation. Mol Pharm 2023; 20:5739-5752. [PMID: 37843033 DOI: 10.1021/acs.molpharmaceut.3c00611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Polymerized human hemoglobin (PolyhHb) has shown promise in preclinical hemorrhagic shock settings. Different synthetic and purification schemes can control the size of PolyhHbs, yet research is lacking on the impact of polymerized hemoglobin size on tissue oxygenation following hemorrhage and resuscitation in specialized animal models that challenge their resuscitative capabilities. Pre-existing conditions that compromise the vasculature and end organs, such as the liver, may limit the effectiveness of resuscitation and exacerbate the toxicity of these molecules, which is an important but minimally explored therapeutic dimension. In this study, we compared the effective oxygen delivery of intermediate molecular weight PolyhHb (PolyhHb-B3; 500-750 kDa) to high molecular weight PolyhHb (PolyhHb-B4; 750 kDa-0.2 μm) for resuscitative effectiveness in guinea pig models subjected to hemorrhagic shock. We evaluated how the size of PolyhHb impacts hemodynamics and tissue oxygenation in normal guinea pigs and guinea pigs on an atherogenic diet. We observed that while PolyhHb-B3 and -B4 equivalently restore hemodynamic parameters of normal-dieted guinea pigs, high-fat-dieted guinea pigs resuscitated with PolyhHb-B4 have lower mean arterial pressures, impaired tissue oxygenation, and higher plasma lactate levels than those receiving PolyhHb-B3. We characterized the plasma of these animals following resuscitation and found that despite similar oxygen delivery kinetics, circulating PolyhHb-B3 and -B4 demonstrated a size-dependent increase in the plasma viscosity, consistent with impaired perfusion in the PolyhHb-B4 transfusion group. We conclude that intermediate-sized PolyhHbs (such as -B3) are ideal for further research given the effective resuscitation of hemorrhagic shock based on tissue oxygenation in hypercholesterolemic guinea pigs.
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Affiliation(s)
- Derek R Lamb
- Center for Blood Oxygen Transport and Hemostasis, Department of Pediatrics, University of Maryland School of Medicine, HSF III, 670 West Baltimore St., Baltimore, Maryland 21202, United States
| | - Alisyn Greenfield
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 452 CBEC, 151 West Woodruff Avenue, Columbus, Ohio 43210, United States
| | - Kiruphagaran Thangaraju
- Center for Blood Oxygen Transport and Hemostasis, Department of Pediatrics, University of Maryland School of Medicine, HSF III, 670 West Baltimore St., Baltimore, Maryland 21202, United States
| | - Saini Setua
- Center for Blood Oxygen Transport and Hemostasis, Department of Pediatrics, University of Maryland School of Medicine, HSF III, 670 West Baltimore St., Baltimore, Maryland 21202, United States
| | - Gena Eiker
- Center for Blood Oxygen Transport and Hemostasis, Department of Pediatrics, University of Maryland School of Medicine, HSF III, 670 West Baltimore St., Baltimore, Maryland 21202, United States
| | - Qihong Wang
- Center for Blood Oxygen Transport and Hemostasis, Department of Pediatrics, University of Maryland School of Medicine, HSF III, 670 West Baltimore St., Baltimore, Maryland 21202, United States
| | - Amid Vahedi
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 452 CBEC, 151 West Woodruff Avenue, Columbus, Ohio 43210, United States
| | - Mohd Asim Khan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 452 CBEC, 151 West Woodruff Avenue, Columbus, Ohio 43210, United States
| | - Ahmad Yahya
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 452 CBEC, 151 West Woodruff Avenue, Columbus, Ohio 43210, United States
| | - Pedro Cabrales
- Department of Bioengineering, University of California, San Diego, La Jolla, California 92093-0412, United States
| | - Andre F Palmer
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 452 CBEC, 151 West Woodruff Avenue, Columbus, Ohio 43210, United States
| | - Paul W Buehler
- Center for Blood Oxygen Transport and Hemostasis, Department of Pediatrics, University of Maryland School of Medicine, HSF III, 670 West Baltimore St., Baltimore, Maryland 21202, United States
- Department of Pathology, University of Maryland School of Medicine, 10 S Pine St # 700A, Baltimore, Maryland 21201, United States
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Fu M, He F, Jiang Z, Chen X, Xie Z, Hu JF. Development of a novel near-infrared molecule rotator for early diagnosis and visualization of viscosity changes in acute liver injury models. RSC Adv 2023; 13:26247-26251. [PMID: 37670994 PMCID: PMC10475972 DOI: 10.1039/d3ra04391f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/03/2023] [Indexed: 09/07/2023] Open
Abstract
Acute liver injury leading to acute liver failure can be a life-threatening condition. Therefore, timely and accurate early diagnosis of the onset of acute liver injury in vivo is critical. Viscosity is one of the key parameters that can accurately reflect the levels of relevant active analytes at the cellular level. Herein, a novel near-infrared molecule rotator, DJM, was designed and synthesized. This probe exhibited a highly sensitive (461-fold from PBS solution to 95% glycerol solution) and selective response to viscosity with a maximum emission wavelength of 760 nm and a Stokes shift of 240 nm. Furthermore, DJM has exhibited a remarkable capacity to discern viscosity changes induced by nystatin in viable cells with sensitivity and selectivity and further applied in the zebrafish and mouse model of acute liver injury. Additionally, DJM may potentially offer direction for the timely observation and visualization of viscosity in more relevant disease models in the future.
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Affiliation(s)
- Manlin Fu
- Institute of Natural Medicine and Health Products, School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University Zhejiang 318000 China
| | - Fenglin He
- Institute of Natural Medicine and Health Products, School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University Zhejiang 318000 China
| | - Zhelu Jiang
- Institute of Natural Medicine and Health Products, School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University Zhejiang 318000 China
| | - Xue Chen
- Institute of Natural Medicine and Health Products, School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University Zhejiang 318000 China
| | - Zhenda Xie
- Institute of Natural Medicine and Health Products, School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University Zhejiang 318000 China
| | - Jin-Feng Hu
- Institute of Natural Medicine and Health Products, School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University Zhejiang 318000 China
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8
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Woo HG, Kim HG, Lee KM, Ha SH, Jo H, Heo SH, Chang DI, Kim BJ. Blood viscosity associated with stroke mechanism and early neurological deterioration in middle cerebral artery atherosclerosis. Sci Rep 2023; 13:9384. [PMID: 37296267 PMCID: PMC10256783 DOI: 10.1038/s41598-023-36633-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 06/07/2023] [Indexed: 06/12/2023] Open
Abstract
Blood viscosity may affect the mechanisms of stroke and early neurological deterioration (END). We aimed to investigate the relationship between blood viscosity, stroke mechanisms, and END in patients with middle cerebral artery (MCA) infarction. Patients with symptomatic MCA atherosclerosis (≥ 50% stenosis) were recruited. Blood viscosity was compared across patients with different mechanisms of symptomatic MCA disease: in situ thrombo-occlusion (sMCA-IST), artery-to-artery embolism (sMCA-AAE), and local branch occlusion (sMCA-LBO). END was defined as four points increase in the National Institutes of Health Stroke Scale score from baseline during the first week. The association between blood viscosity and END was also evaluated. A total of 360 patients (76 with sMCA-IST, 216 with sMCA-AAE, and 68 with sMCA-LBO) were investigated. Blood viscosity was highest in patients with sMCA-IST, followed by sMCA-AAE and sMCA-LBO (P < 0.001). Blood viscosity was associated with END in patients with MCA disease. Low shear viscosity was associated with END in patients with sMCA- LBO (adjusted odds ratio, aOR 1.524; 95% confidence interval, CI 1.035-2.246), sMCA- IST (aOR 1.365; 95% CI 1.013-1.839), and sMCA- AAE (aOR 1.285; 95% CI 1.010-1.634). Blood viscosity was related to END in patients with stroke caused by MCA disease.
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Affiliation(s)
- Ho Geol Woo
- Department of Neurology, Kyung Hee University College of Medicine, Kyung Hee University Hospital, Seoul, Korea
| | - Hyug-Gi Kim
- Department of Radiology, Kyung Hee University College of Medicine, Kyung Hee University Hospital, Seoul, Korea
| | - Kyung Mi Lee
- Department of Radiology, Kyung Hee University College of Medicine, Kyung Hee University Hospital, Seoul, Korea
| | - Sang Hee Ha
- Department of Neurology, Gil Medical Center, Gachon University, Incheon, Korea
| | - HangJin Jo
- Department of Mechanical Engineering and Division of Advanced Nuclear Engineering, POSTECH, Pohang, Gyeongbuk, Korea
| | - Sung Hyuk Heo
- Department of Neurology, Kyung Hee University College of Medicine, Kyung Hee University Hospital, Seoul, Korea
| | - Dae-Il Chang
- Department of Neurology, Kyung Hee University College of Medicine, Kyung Hee University Hospital, Seoul, Korea
| | - Bum Joon Kim
- Department of Neurology, Asan Medical Center, University of Ulsan, College of Medicine, Song-Pa, PO Box 145, Seoul, 138-600, Korea.
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9
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Jin GQ, Chau CV, Arambula JF, Gao S, Sessler JL, Zhang JL. Lanthanide porphyrinoids as molecular theranostics. Chem Soc Rev 2022; 51:6177-6209. [PMID: 35792133 DOI: 10.1039/d2cs00275b] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In recent years, lanthanide (Ln) porphyrinoids have received increasing attention as theranostics. Broadly speaking, the term 'theranostics' refers to agents designed to allow both disease diagnosis and therapeutic intervention. This Review summarises the history and the 'state-of-the-art' development of Ln porphyrinoids as theranostic agents. The emphasis is on the progress made within the past decade. Applications of Ln porphyrinoids in near-infrared (NIR, 650-1700 nm) fluorescence imaging (FL), magnetic resonance imaging (MRI), radiotherapy, and chemotherapy will be discussed. The use of Ln porphyrinoids as photo-activated agents ('phototheranostics') will also be highlighted in the context of three promising strategies for regulation of porphyrinic triplet energy dissipation pathways, namely: regioisomeric effects, metal regulation, and the use of expanded porphyrinoids. The goal of this Review is to showcase some of the ongoing efforts being made to optimise Ln porphyrinoids as theranostics and as phototheranostics, in order to provide a platform for understanding likely future developments in the area, including those associated with structure-based innovations, functional improvements, and emerging biological activation strategies.
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Affiliation(s)
- Guo-Qing Jin
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
| | - Calvin V Chau
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712-1224, USA.
| | - Jonathan F Arambula
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712-1224, USA. .,InnovoTEX, Inc. 3800 N. Lamar Blvd, Austin, Texas 78756, USA.
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China. .,Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, P. R. China.,Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, Spin-X Institute, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, P. R. China
| | - Jonathan L Sessler
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712-1224, USA.
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China. .,Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, P. R. China
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10
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Monteiro JHSK, Fetto NR, Tucker MJ, Sigoli FA, de Bettencourt-Dias A. Carbazole-Functionalized Dipicolinato Ln III Complexes Show Two-Photon Excitation and Viscosity-Sensitive Metal-Centered Emission. JOURNAL OF LUMINESCENCE 2022; 245:118768. [PMID: 35422532 PMCID: PMC9004684 DOI: 10.1016/j.jlumin.2022.118768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
EuIII and YbIII complexes with the carbazole-dipicolinato ligand dpaCbz2-, namely K3[Eu(dpaCbz)3] and K3[Yb(dpaCbz)3], were isolated. The EuIII complex displayed metal-centred emission upon one-photon excitation with a sensitized emission efficiency Φ L Ln of 1.8±0.3 %, corresponding to an intrinsic emission efficiency Φ Ln Ln of 46% and a sensitization efficiency of ηsens 3.9%, with an emission lifetime of the emissive state τ of 1.087±0.005 ms. The YbIII complex displayed Φ L Ln of 0.010±0.001 %, and a τ of 2.32±0.06 μs. The EuIII-centred emission was sensitized as well upon two-photon excitation and a two-photon absorption cross-section σ2PA of 63 GM at 750 nm was determined for the complex. The one- or two-photon sensitized emission intensity of the EuIII complex changes by more than two-fold when the solvent viscosity is varied in the range 0.5 - 200 cP and the emission is independent of dissolved oxygen. The YbIII complex displays a change in emission intensity as well. However, in this case, a dependence of the emission intensity on dissolved oxygen content was observed.
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Affiliation(s)
- Jorge H S K Monteiro
- Department of Chemistry, University of Nevada, Reno, NV, 89557 United States
- current address: Department of Chemistry, Humboldt State University, Arcata CA, 95521 United States
| | - Natalie R Fetto
- Department of Chemistry, University of Nevada, Reno, NV, 89557 United States
- current address: Department of Chemistry, Biochemistry and Physics, The University of Tampa, Tampa, FL 33606 United States
| | - Matthew J Tucker
- Department of Chemistry, University of Nevada, Reno, NV, 89557 United States
| | - Fernando A Sigoli
- Institute of Chemistry, University of Campinas, Campinas, São Paulo, 13083-970 Brazil
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11
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Quee FA, Peffer K, ter Braake AD, van den Hurk K. Cardiovascular benefits for blood donors? A systematic review. Transfus Med Rev 2022; 36:143-151. [DOI: 10.1016/j.tmrv.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/14/2022] [Accepted: 04/15/2022] [Indexed: 10/18/2022]
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12
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Trejo-Soto C, Lázaro GR, Pagonabarraga I, Hernández-Machado A. Microfluidics Approach to the Mechanical Properties of Red Blood Cell Membrane and Their Effect on Blood Rheology. MEMBRANES 2022; 12:217. [PMID: 35207138 PMCID: PMC8878405 DOI: 10.3390/membranes12020217] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 02/06/2023]
Abstract
In this article, we describe the general features of red blood cell membranes and their effect on blood flow and blood rheology. We first present a basic description of membranes and move forward to red blood cell membranes' characteristics and modeling. We later review the specific properties of red blood cells, presenting recent numerical and experimental microfluidics studies that elucidate the effect of the elastic properties of the red blood cell membrane on blood flow and hemorheology. Finally, we describe specific hemorheological pathologies directly related to the mechanical properties of red blood cells and their effect on microcirculation, reviewing microfluidic applications for the diagnosis and treatment of these diseases.
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Affiliation(s)
- Claudia Trejo-Soto
- Instituto de Física, Pontificia Universidad Católica de Valparaiso, Casilla 4059, Chile
| | - Guillermo R. Lázaro
- Departament de Física de la Materia Condensada, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain; (G.R.L.); (I.P.); (A.H.-M.)
| | - Ignacio Pagonabarraga
- Departament de Física de la Materia Condensada, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain; (G.R.L.); (I.P.); (A.H.-M.)
- CECAM, Centre Europeén de Calcul Atomique et Moleéculaire, École Polytechnique Feédeérale de Lausanne (EPFL), Batochime—Avenue Forel 2, 1015 Lausanne, Switzerland
- Universitat de Barcelona Institute of Complex Systems (UBICS), Universitat de Barcelona, 08028 Barcelona, Spain
| | - Aurora Hernández-Machado
- Departament de Física de la Materia Condensada, Universitat de Barcelona, Av. Diagonal 645, 08028 Barcelona, Spain; (G.R.L.); (I.P.); (A.H.-M.)
- Centre de Recerca Matemàtica, Edifici C, Campus de Bellaterra, 08193 Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
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13
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Caimi G, Urso C, Brucculeri S, Amato C, Carlisi M, Lo Presti R. An assessment of the hemorheological profile in patients with subclinical carotid atherosclerosis divided in relation to the number of cardiovascular risk factors and different degrees of insulin resistance. Clin Hemorheol Microcirc 2021; 78:417-428. [PMID: 33843665 DOI: 10.3233/ch-211105] [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: 01/22/2023]
Abstract
We present a cohort of 100 subjects [43 men and 57 women; median age 66.00(25)] who were tested using carotid ultrasound to identify subclinical carotid atherosclerosis (SCA). We have evaluated the behaviour of whole blood viscosity (WBV) at high (450 s-1) and low (0.51 s-1) shear rates, plasma viscosity (450-1), hematocrit and mean erythrocyte aggregation. When compared to normal control subjects, using the Mann-Whitney test, we observed in SCA patients a significant increase in WBV only. The results were substantial after having divided the SCA subjects according to the cardiovascular risk factors (CRFs) and the degree of insulin resistance; the research was performed using two surrogate indexes such as TG/HDL-C and TyG. With the division carried out according to CRFs, employing the Kruskal-Wallis test, results show a significant increase in WBV (at high and low shear rates), in plasma viscosity, in erythrocyte aggregation and plasma fibrinogen level. Whereas by dividing them into the median of TG/HDL-C and TyG, we noticed a significant increase in WBV (at high and low shear rates) and in erythrocyte aggregation in the two groups with high TG/HDL-C ratio and with high TyG; having found an increased level of plasma fibrinogen in the latter. The data underlines the role of the main hemorheologic aspects in subclinical carotid atherosclerosis being closely correlated to the CRFs and different degrees of insulin resistance.
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Affiliation(s)
- G Caimi
- Department of Health Promotion and Child Care, Internal Medicine and Medical Specialties, Universitá Degli Studi Di Palermo, Palermo, Italy
| | - C Urso
- Fondazione Istituto "G. Giglio" Cefalú, Palermo, Italy
| | - S Brucculeri
- Fondazione Istituto "G. Giglio" Cefalú, Palermo, Italy
| | - C Amato
- Department of Health Promotion and Child Care, Internal Medicine and Medical Specialties, Universitá Degli Studi Di Palermo, Palermo, Italy
| | - M Carlisi
- Department of Health Promotion and Child Care, Internal Medicine and Medical Specialties, Universitá Degli Studi Di Palermo, Palermo, Italy
| | - R Lo Presti
- Department of Psychology, Educational Science and Human Movement, Universitá Degli Studi Di Palermo, Palermo, Italy
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14
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Valério de Arruda M, Cruz Silva A, Fernandes Galduróz JC, Ferreira Galduróz R. Standardization for obtaining blood viscosity: A systematic review. Eur J Haematol 2021; 106:597-605. [PMID: 33528885 DOI: 10.1111/ejh.13594] [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] [Received: 11/23/2020] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 11/29/2022]
Abstract
INTRODUCTION There is evidence to suggest that blood viscosity (BV) is involved in several pathological processes. In this review, we evaluated the different methods of BV acquisition, analyzing the sample storage time, the storage temperature, the acquisition time, the acquisition temperature, sample volume, and shear rates, in order to standardize this technique. METHODS We selected 50 articles with methods of obtaining BV, evaluating pathologies through BV, comparing rheological equipment, monitoring, and regulating BV. RESULTS AND CONCLUSION Measurements should be obtained as soon as possible, to reduce hemorheological changes. It is necessary to refrigerate them at 4°C when the storage time is long. The acquisition time is related to the equipment used. BV measurements at 37°C will represent the real BV in vivo more faithfully. In order to understand the BV phenomena, the shear rates must be between 0.1 and 1000 s-1. There is a wide variety of equipment available for measuring the BV.
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Affiliation(s)
- Marcel Valério de Arruda
- Programa de Pós Graduação em Neurociência e Cognição, Centro de Matemática, Computação e Cognição, Universidade Federal do ABC, Santo Andre, Brazil
| | - Alana Cruz Silva
- Programa de Pós Graduação em Neurociência e Cognição, Centro de Matemática, Computação e Cognição, Universidade Federal do ABC, Santo Andre, Brazil
| | | | - Ruth Ferreira Galduróz
- Programa de Pós Graduação em Neurociência e Cognição, Centro de Matemática, Computação e Cognição, Universidade Federal do ABC, Santo Andre, Brazil
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15
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Peng L, Li Y, Li X, Du Y, Li L, Hu C, Zhang J, Qin Y, Wei Y, Zhang H. Extracellular Vesicles Derived from Intermittent Hypoxia-Treated Red Blood Cells Impair Endothelial Function Through Regulating eNOS Phosphorylation and ET-1 Expression. Cardiovasc Drugs Ther 2020; 35:901-913. [PMID: 33242203 DOI: 10.1007/s10557-020-07117-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/18/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE Intermittent hypoxia (IH), a main characteristic of obstructive sleep apnea (OSA) syndrome, has been known as a dominant cause of OSA-related endothelial dysfunction and hypertension. However, the underlying mechanism still remains unclear. Extracellular vesicles (EVs), small vesicles secreted by various cells, can be absorbed by endothelial cells and then influence vascular function. The aim of this research is to clarify whether and how EVs shedding from red blood cells (RBCs) are involved in IH-induced endothelial dysfunction. METHODS EVs were extracted by ultracentrifugation. After the identification of property and purity, EVs from IH-exposed RBCs (IH REVs) and normoxia-exposed RBCs (NOR REVs) or from OSA and non-OSA patient RBCs were utilized to treat C57BL/6 mouse aortas or human umbilical vein endothelial cells (HUVECs) for mechanistic exploration. RESULTS Functional results demonstrated that REVs from OSA patients dramatically impaired endothelium-dependent relaxations (EDRs). Similarly, in vivo and ex vivo studies showed that IH REVs caused significant endothelial dysfunction compared to control group. Further results presented that IH REVs blocked endothelial nitric oxide synthase (eNOS) phosphorylation through inhibiting PI3K/Akt pathway and enhanced endothelin-1 (ET-1) expression through activating Erk1/2 pathway in endothelial cells. Meanwhile, endothelial dysfunction caused by IH REVs was reversed by Akt activator SC79 as well as Erk kinase inhibitor PD98059, suggesting that PI3K/Akt/eNOS and Erk1/2/ET-1 pathways were implicated in IH REV-induced impaired EDRs. CONCLUSIONS This study reveals a novel role of REVs in endothelial dysfunction under IH and dissects the relevant mechanism involved in this process, which will help to establish a comprehensive understanding of OSA or IH-related endothelial dysfunction from a new scope.
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Affiliation(s)
- Lu Peng
- Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, 100029, China
| | - Yu Li
- Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, 100029, China
| | - Xinwei Li
- Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, 100029, China
| | - Yunhui Du
- Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, 100029, China
| | - Linyi Li
- Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, 100029, China
| | - Chaowei Hu
- Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, 100029, China
| | - Jing Zhang
- Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, 100029, China
| | - Yanwen Qin
- Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, 100029, China
| | - Yongxiang Wei
- Department of Otolaryngology-Head and Neck Surgery, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, 100029, China.
| | - Huina Zhang
- Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing Institute of Heart, Lung and Blood Vessel Disease, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, Beijing, 100029, China.
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16
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K Dolu A, Korkmaz A, Kundi H, Guray U. Whole blood viscosity predicts nondipping circadian pattern in essential hypertension. Biomark Med 2020; 14:1307-1316. [PMID: 33054402 DOI: 10.2217/bmm-2020-0249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 08/05/2020] [Indexed: 11/21/2022] Open
Abstract
Aim: We aimed to investigate the association between whole blood viscosity (WBV) and nondipping pattern in patients with essential hypertension. Materials & methods: A total of consecutive 530 patients who had been evaluated by ambulatory blood pressure monitoring were included. WBV was estimated by using hematocrit and plasma total protein levels for both WBV in low shear rate (0.5 s-1) and WBV in high shear rate (208 s-1) according to the de Simone's formula. Results: In the multivariate analysis, low shear rate and high shear rate of WBV were associated independently with nondipping pattern in patients with essential hypertension. Conclusion: As a simple, inexpensive and noninvasive tool, WBV seems to be a significant predictor of nondipping hypertension.
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Affiliation(s)
- Abdullah K Dolu
- Department of Cardiology, İzmir Katip Çelebi University Ataturk Training and Research Hospital, Izmir, 35360, Turkey
| | - Ahmet Korkmaz
- Department of Cardiology, Ankara City Hospital, Health Sciences University, Ankara, 06800, Turkey
| | - Harun Kundi
- Richard A. and Susan F. Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Umit Guray
- Department of Cardiology, Ankara City Hospital, Health Sciences University, Ankara, 06800, Turkey
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17
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Patient and haemodynamic factors affecting intraoperative graft flow during coronary artery bypass grafting: an observational pilot study. Sci Rep 2020; 10:12968. [PMID: 32737380 PMCID: PMC7395102 DOI: 10.1038/s41598-020-69924-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 07/21/2020] [Indexed: 12/18/2022] Open
Abstract
Transit-time flow measurement (TTFM) is frequently used to evaluate intraoperative quality control during coronary artery bypass grafting (CABG) and has the ability to assess graft failure intraoperatively. However, perioperative factors affecting TTFM during CABG remain poorly understood. Patients who underwent CABG at a single institution between July 2016 and May 2018 were prospectively evaluated. TTFM and blood viscosity were measured haemodynamically, while mean flow (mL/min), pulsatility index, and diastolic filling were recorded. Arterial blood gas was analysed immediately after left internal mammary artery to left descending artery anastomosis and before sternal closure. Factors associated with TTFM were assessed using multiple linear regression analysis. We evaluated 57 of the 62 patients who underwent CABG during the study period, including 49 who underwent off-pump and 8 who underwent on-pump surgeries. Blood viscosity was not significantly associated with TTFM (p > 0.05). However, TTFM was significantly associated with body mass index, systolic blood pressure, and cardiac index (p < 0.05 each). In conclusion, maintaining the SBP in the perioperative period and maintaining the CI with inotropic support or fluid resuscitation can be important in improving blood flow of graft vessels after surgery.
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18
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Plotnikov MB, Aliev OI, Shamanaev AY, Sidekhmenova AV, Anishchenko AM, Fomina TI, Rydchenko VS, Khlebnikov AI, Anfinogenova YJ, Schepetkin IA, Atochin DN. Antihypertensive activity of a new c-Jun N-terminal kinase inhibitor in spontaneously hypertensive rats. Hypertens Res 2020; 43:1068-1078. [PMID: 32382155 DOI: 10.1038/s41440-020-0446-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 03/25/2020] [Accepted: 03/27/2020] [Indexed: 11/09/2022]
Abstract
c-Jun N-terminal kinases (JNKs) are involved in the myocardial and aortic remodeling, increased arterial tone, and arterial blood pressure elevation associated with hypertension. The aim of the present study was to investigate the antihypertensive effect of a new JNK inhibitor, 1H-indeno[1,2-b]quinoxalin-11-one oxime sodium salt (IQ-1S), on spontaneously hypertensive rats (SHRs). Experiments were performed using normotensive Wistar-Kyoto (WKY) rats and SHRs. Experimental groups of SHRs received IQ-1S intragastrically for 6 weeks in daily doses of 5 and 50 mg/kg; experimental groups of WKY rats received 50 mg/kg IQ-1S according to the same regimen. The IQ-1S administration regimen induced decreases in systolic blood pressure, mean arterial blood pressure, total peripheral resistance, blood viscosity, hematocrit, myocardial cell cross-sectional area, and aortic wall thickness in SHRs vs untreated SHRs. There were no significant differences in systolic blood pressure values between the control and experimental groups of WKY rats during the treatment period. A concentration-dependent decrease in the tone of carotid arterial rings isolated from SHRs was observed after JNK inhibitor application in vitro. Application of the JNK inhibitor diminished endothelin-1 secretion by human umbilical vein endothelial cells in vitro. The main mechanisms of the antihypertensive effect of IQ-1S included the attenuation of blood viscosity due to decreased hematocrit, a vasodilatory effect on arterial smooth muscle cells, and a decrease in endothelin-1 production by endothelial cells.
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Affiliation(s)
- Mark B Plotnikov
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, 3 Lenin Av., Tomsk, 634028, Russia. .,National Research Tomsk State University, Tomsk, Russia.
| | - Oleg I Aliev
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, 3 Lenin Av., Tomsk, 634028, Russia
| | - Aleksandr Y Shamanaev
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, 3 Lenin Av., Tomsk, 634028, Russia
| | - Anastasia V Sidekhmenova
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, 3 Lenin Av., Tomsk, 634028, Russia
| | - Anna M Anishchenko
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, 3 Lenin Av., Tomsk, 634028, Russia.,Department of Pharmacology, Siberian State Medical University, 2 Moskovsky Trakt, Tomsk, 634050, Russia
| | - Tatiana I Fomina
- Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, 3 Lenin Av., Tomsk, 634028, Russia
| | - Victoria S Rydchenko
- Department of Biophysics, Siberian State Medical University, 2 Moskovsky Trakt, Tomsk, 634050, Russia
| | - Andrei I Khlebnikov
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia.,Research Institute of Biological Medicine, Altai State University, Barnaul, 656049, Russia
| | - Yana J Anfinogenova
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia.,Cardiology Research Institute, Tomsk National Research Medical Center, 111a Kievskaya St., Tomsk, 634012, Russia
| | - Igor A Schepetkin
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia.,Department of Microbiology and Immunology, Montana State University, Bozeman, MT, 59717, USA
| | - Dmitriy N Atochin
- Kizhner Research Center, Tomsk Polytechnic University, Tomsk, 634050, Russia.,Cardiovascular Research Center, Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
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Whole blood viscosity in microvascular angina and coronary artery disease: Significance and utility. Rev Port Cardiol 2020; 39:17-23. [PMID: 32156449 DOI: 10.1016/j.repc.2019.04.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 04/01/2019] [Accepted: 04/07/2019] [Indexed: 01/13/2023] Open
Abstract
INTRODUCTION AND OBJECTIVES Whole blood viscosity (WBV) is the intrinsic resistance of blood flow in vessels, and when elevated induces endothelial shear stress and endothelial inflammation and can accelerate the atherosclerotic process. This study aims to compare WBV levels in patients with microvascular angina (MVA), patients with coronary artery disease (CAD), and normal controls, and to identify the relationship between WBV and high-sensitivity C-reactive protein as a marker of inflammation in MVA and CAD. METHODS A total of 573 patients were studied. The MVA group consisted of 189 subjects, the CAD group consisted of 203 subjects, and the control group consisted of 181 age- and gender-matched individuals. WBV was calculated from hematocrit and plasma protein concentration at a low shear rate (0.5 s-1) and high shear rate (208 s-1) by a validated equation. RESULTS Patients with CAD and MVA had significantly higher WBV at both low and high shear rates compared to the control group. Correlation analysis revealed a significant relationship between high-sensitivity C-reactive protein and WBV at low (r=0.556; p<0.001) and high shear rates (r=0.562) in the CAD group and at low (r=0.475) and high shear rates (r=0.493) in the MVA group. CONCLUSIONS Overall, this study demonstrated a significant and independent association between blood viscosity and the existence of endothelial inflammation and the atherosclerotic process.
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20
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Monteiro JHSK, Fetto NR, Tucker MJ, de Bettencourt-Dias A. Luminescent Carbazole-Based Eu III and Yb III Complexes with a High Two-Photon Absorption Cross-Section Enable Viscosity Sensing in the Visible and Near IR with One- and Two-Photon Excitation. Inorg Chem 2020; 59:3193-3199. [PMID: 32052955 DOI: 10.1021/acs.inorgchem.9b03561] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The newly synthesized EuIII and YbIII complexes with the new carbazole-based ligands CPAD2- and CPAP4- display the characteristic long-lived metal-centered emission upon one- and two-photon excitation. The EuIII complexes show the expected narrow emission bands in the red region, with emission lifetimes between 0.382 and 1.464 ms and quantum yields between 2.7% and 35.8%, while the YbIII complexes show the expected emission in the NIR region, with emission lifetimes between 0.52 and 37.86 μs and quantum yields between 0.028% and 1.12%. Two-photon absorption cross sections (σ2PA) as high as 857 GM were measured for the two ligands. The complexes showed a strong dependence of the one- and two-photon sensitized emission intensity on solvent viscosity in the range of 0.5-200 cP in the visible and NIR region.
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Affiliation(s)
| | - Natalie R Fetto
- Department of Chemistry, University of Nevada, Reno, Nevada 89557, United States
| | - Matthew J Tucker
- Department of Chemistry, University of Nevada, Reno, Nevada 89557, United States
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21
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Feng L, Chen H, Chen J, Xiong C, Shao X, Wang X, Ning J, Xiang Z, Wang X, Chen T, Xiao H, Tang H, Li X, Hong G, Zou H. The Product of Red Blood Cells and Hematocrit Can Be Used as a Novel Indicator of Impaired Fasting Blood Glucose Status. Diabetes Metab Syndr Obes 2020; 13:4007-4015. [PMID: 33149640 PMCID: PMC7602892 DOI: 10.2147/dmso.s270276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 10/03/2020] [Indexed: 01/21/2023] Open
Abstract
OBJECTIVE To explore whether the red blood cell count multiplied by hematocrit index (RBCHct) in blood routine parameters can indicate the risk of impaired fasting blood glucose (IFG), and whether it is related to insulin resistance and inflammation. METHODS In this cross-sectional study, previous history of diabetes was excluded, and people with normal and impaired IFG were included. We use Spearman analysis to evaluate the correlation between RBCHct index and fasting plasma glucose, insulin resistance homeostasis model assessment (HOMA-IR), and hypersensitive C-reactive protein (hs-CRP). Binary logistic regression analysis was used to evaluate the RBCHct index for assessing the potential risk of IFG, and the receiver operating characteristic (ROC) curve was used to evaluate the RBCHct index for diagnosing insulin resistance and chronic low-grade inflammatory efficacy among those with IFG. RESULTS Correlation analysis showed that the RBCHct index and fasting plasma glucose (r=0.088, P=0.003); HOMA-IR (r=0.199, P<0.001); and hs-CRP (r=0.097, P=0.001) were positively correlated. After adjusting for confounding factors, the risk of IFG in the third and fourth quartiles of the RBCHct index increased to 1.889 and 3.048 times. The area under the ROC curve of the RBCHct index for diagnosis of insulin resistance state (HOMA-IR) was 0.695 (p<0.001), and the area under the ROC curve of the RBCHct index for the diagnosis of chronic low-inflammatory state (hs-CRP) was 0.641 (P=0.010). CONCLUSION The RBCHct index may be a potential indicator for assessing the risk of prediabetes and is closely related to whether the body is in a state of insulin resistance and inflammation under IFG.
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Affiliation(s)
- Ling Feng
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Haishan Chen
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Jianhui Chen
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Chongxiang Xiong
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Xiaofei Shao
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Xin Wang
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Jing Ning
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Zhicong Xiang
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Xuan Wang
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Tong Chen
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Hua Xiao
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Hongjuan Tang
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Xiaolin Li
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Guobao Hong
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
| | - Hequn Zou
- Department of Nephrology, The Third Affiliated Hospital, Southern Medical University, Guangzhou510630, People’s Republic of China
- Correspondence: Hequn Zou; Xiaofei ShaoDepartment of Nephrology, The Third Affiliated Hospital, Southern Medical University, 183, Zhongshan West Avenue, Tianhe District, Guangzhou510630, People’s Republic of China Email ;
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Cekirdekci EI, Bugan B. Whole blood viscosity in microvascular angina and coronary artery disease: Significance and utility. REVISTA PORTUGUESA DE CARDIOLOGIA (ENGLISH EDITION) 2020. [DOI: 10.1016/j.repce.2019.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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23
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Thambiraj G, Gandhi U, Devanand V, Mangalanathan U. Noninvasive cuffless blood pressure estimation using pulse transit time, Womersley number, and photoplethysmogram intensity ratio. Physiol Meas 2019; 40:075001. [DOI: 10.1088/1361-6579/ab1f17] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Wang X, Niu M, Wu SN, Hu HWY, Liu XY, Ma SY, Liu J, Hao JJ, Yang XJ, Wu GS, Qin N, Wen RQ, Li DH, Zhang YM, Xiao XH, Wang JB, Ma L. Leeches attenuate blood hyperviscosity and related metabolic disorders in rats differently than aspirin. JOURNAL OF ETHNOPHARMACOLOGY 2019; 238:111813. [PMID: 30910578 DOI: 10.1016/j.jep.2019.03.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/24/2019] [Accepted: 03/16/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Whitmania pigra Whitman (Whitmania pigra, WP), firstly recorded in the Shennong's Herbal Classic and officially listed in the Chinese Pharmacopoeia, is a well-used cardiovascular protective traditional Chinese medicine derived from leeches. Traditional Chinese physicians prefer to prescribe the dried whole body of leech processed under high temperatures. It has been reported that dried WP remains clinically effective. However, the therapeutic mechanism has yet not be clearly elucidated. AIM OF THE STUDY This study was designed to investigate the protective activity of the extract of WP in a high-molecular-weight dextran-induced blood hyperviscosity rat model, and to explore the role of WP in improving blood hyperviscosity related metabolic disorders and to clarify the possible mechanism of metabolic regulation. MATERIALS AND METHODS The hemorheological parameters were measured with an automated blood rheology analyzer. Hematoxylin-eosin staining was used to observe the pathological changes in aortic tissues samples. Further, a liquid chromatography-mass-spectrometry (LC-MS)-based untargeted metabolomics approach was applied to characterize the metabolic alterations. RESULTS WP has evident attenuating effects on blood hyperviscosity and related metabolic disorders, and the influences are distinct from those of aspirin. The results showed that WP had good effects in reducing blood viscosity and ameliorating histopathological changes in the thoracic aorta in a high molecular weight dextran-induced blood hyperviscosity rat model. The middle dose (2.5 g raw material/kg body weight) of WP exhibited effects equivalent to aspirin (100 mg/kg) on hemorheological and histopathological parameters (P > 0.05). However, when using metabolomics profiling, we found that WP could significantly improve blood hyperviscosity-related metabolic disorders and restore metabolites to normal levels; while aspirin showed little effect. With principal component analysis and orthogonal partial least-squares discriminant analysis, WP regulated many more endogenous metabolites than aspirin. With pathway enrichment analysis, the differential endogenous metabolites were involved in cysteine and methionine metabolism, TCA cycle, arachidonic acid metabolism, etc., highlighting the metabolic reprogramming potential of WP against blood hyperviscosity-induced metabolic disorders. CONCLUSIONS The study suggest that WP has a more potent effect, but a different mechanism, than aspirin in improving either blood hyperviscosity or related metabolic disorders associated with cardio- and cerebrovascular diseases.
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Affiliation(s)
- Xuan Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, PR China; China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Ming Niu
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Shan-Na Wu
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Huang-Wan-Yin Hu
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Xiao-Yi Liu
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Sheng-Yao Ma
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, PR China.
| | - Jing Liu
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Jun-Jie Hao
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Xiao-Juan Yang
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Guo-Song Wu
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Nan Qin
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Rui-Qing Wen
- Beijing Haidian Food and Drug Safety Monitoring, Beijing, PR China.
| | - Dong-Hui Li
- Beijing Haidian Food and Drug Safety Monitoring, Beijing, PR China.
| | - Ya-Ming Zhang
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Xiao-He Xiao
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Jia-Bo Wang
- China Military Institute of Chinese Medicine, 302 Military Hospital, Beijing, PR China.
| | - Li Ma
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, PR China.
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Guedes AF, Moreira C, Nogueira JB, Santos NC, Carvalho FA. Fibrinogen-erythrocyte binding and hemorheology measurements in the assessment of essential arterial hypertension patients. NANOSCALE 2019; 11:2757-2766. [PMID: 30672545 DOI: 10.1039/c8nr04398a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Some studies have reported a positive association between plasma fibrinogen levels, erythrocyte aggregation and essential arterial hypertension (EAH). The aim of this study was to understand how the interaction between fibrinogen and its erythrocyte membrane receptor is altered in EAH. EAH patients (n = 31) and healthy blood donors (n = 65) were enrolled in the study. EAH patients were therapeutically controlled for the disease, presenting a systolic blood pressure between 108 and 180 mmHg and a diastolic blood pressure between 66 and 123 mmHg. Clinical evaluation included blood pressure monitoring, electrocardiography, echocardiography and blood cell count. The hemorheological parameters were also analyzed. Fibrinogen-erythrocyte binding force and frequency were evaluated quantitatively, at the single-molecule level, using atomic force microscopy (AFM). Changes in erythrocyte elasticity were also evaluated. Force spectroscopy data showed that the average fibrinogen-erythrocyte binding forces increase from 40.4 ± 3.0 pN in healthy donors to 73.8 ± 8.1 pN in patients with EAH, despite a lower binding frequency for patients compared to the control group (7.9 ± 1.6% vs. 27.6 ± 4.2%, respectively). Elasticity studies revealed an increase of erythrocyte stiffness in the patients. The stronger fibrinogen binding to erythrocytes from EAH patients and alteration in cell elasticity may lead to changes in the whole blood flow. The patients' altered hemorheological parameters may also contribute to these blood flow perturbations. The transient bridging of two erythrocytes, by the simultaneous binding of fibrinogen to both of them, promoting erythrocyte aggregation, could represent an important cardiovascular risk factor.
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Affiliation(s)
- Ana Filipa Guedes
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
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26
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Plotnikov MB, Aliev OI, Sidekhmenova AV, Shamanaev AY, Anishchenko AM, Fomina TI, Plotnikova TM, Arkhipov AM. Effect of p- tyrosol on hemorheological parameters and cerebral capillary network in young spontaneously hypertensive rats. Microvasc Res 2018; 119:91-97. [DOI: 10.1016/j.mvr.2018.04.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 04/11/2018] [Accepted: 04/16/2018] [Indexed: 11/26/2022]
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Sloop GD, Pop G, Weidman JJ, St Cyr JA. Apolipoprotein(a) is the Product of a Pseudogene: Implications for the Pathophysiology of Lipoprotein(a). Cureus 2018; 10:e2715. [PMID: 30079281 PMCID: PMC6067813 DOI: 10.7759/cureus.2715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 05/31/2018] [Indexed: 12/03/2022] Open
Abstract
Apolipoprotein(a) [apo(a)] is an apolipoprotein unique to lipoprotein(a) [Lp(a)]. Although it has no known function, Lp(a) is a risk factor for accelerated atherothrombosis. We hypothesize that LPA, the gene which encodes apo(a), is a heretofore unrecognized unprocessed pseudogene created by duplication of PLG, the gene which encodes plasminogen. Unprocessed pseudogenes are genes which were created by duplication of functional genes and subsequently lost function after acquiring various mutations. This hypothesis explains many of the unusual features of Lp(a) and apo(a). Also, this hypothesis has implications for the therapy of elevated Lp(a) and atherothrombosis theory. Because apo(a) is functionless, the diseases associated with elevated levels of Lp(a) are due to its impact on blood viscosity.
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Affiliation(s)
- Gregory D Sloop
- Pathology, Idaho College of Osteopathic Medicine, Meridian, USA
| | - Gheorghe Pop
- Cardiology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands, Nijmegen, NLD
| | | | - John A St Cyr
- Research and Development, Jacqmar, Inc., Minneapolis, USA
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Liu M, Zhao J, Lu X, Li G, Wu T, Zhang L. Blood hyperviscosity identification with reflective spectroscopy of tongue tip based on principal component analysis combining artificial neural network. Biomed Eng Online 2018; 17:60. [PMID: 29747693 PMCID: PMC5946417 DOI: 10.1186/s12938-018-0495-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/04/2018] [Indexed: 11/10/2022] Open
Abstract
Background With spectral methods, noninvasive determination of blood hyperviscosity in vivo is very potential and meaningful in clinical diagnosis. In this study, 67 male subjects (41 health, and 26 hyperviscosity according to blood sample analysis results) participate. Methods Reflectance spectra of subjects’ tongue tips is measured, and a classification method bases on principal component analysis combined with artificial neural network model is built to identify hyperviscosity. Hold-out and Leave-one-out methods are used to avoid significant bias and lessen overfitting problem, which are widely accepted in the model validation. Results To measure the performance of the classification, sensitivity, specificity, accuracy and F-measure are calculated, respectively. The accuracies with 100 times Hold-out method and 67 times Leave-one-out method are 88.05% and 97.01%, respectively. Conclusions Experimental results indicate that the built classification model has certain practical value and proves the feasibility of using spectroscopy to identify hyperviscosity by noninvasive determination.
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Affiliation(s)
- Ming Liu
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Jing Zhao
- Institute of Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - XiaoZuo Lu
- Institute of Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Gang Li
- State Key Laboratory of Precision Measurement Technology and Instruments, Tianjin University, Tianjin, 300072, China
| | - Taixia Wu
- Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100101, China
| | - LiFu Zhang
- Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100101, China
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Sloop GD, Pop G, Weidman JJ, St Cyr JA. Flawed Reasoning Allows the Persistence of Mainstream Atherothrombosis Theory. Cureus 2018; 10:e2377. [PMID: 29805946 PMCID: PMC5969815 DOI: 10.7759/cureus.2377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Deaths due to atherothrombosis are increasing throughout the world except in the lowest socio-demographic stratum. This is despite 60 years of study and expenditure of billions of dollars on lipid theory. Nevertheless, mainstream atherothrombosis theory persists even though it has failed numerous tests. Contrary data are ignored, consistent with the practice of science as envisioned by Thomas Kuhn. This paper examines defects in mainstream atherogenesis theory and the flawed logic which allows its persistence in the face of what should be obvious shortcomings.
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Affiliation(s)
| | - Gheorghe Pop
- Cardiology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands, Nijmegen, NLD
| | | | - John A St Cyr
- Research and Development, Jacqmar, Inc., Minneapolis, USA
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30
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Naghedi-Baghdar H, Nazari SM, Taghipour A, Nematy M, Shokri S, Mehri MR, Molkara T, Javan R. Effect of diet on blood viscosity in healthy humans: a systematic review. Electron Physician 2018; 10:6563-6570. [PMID: 29765583 PMCID: PMC5942579 DOI: 10.19082/6563] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 11/16/2017] [Indexed: 01/01/2023] Open
Abstract
Background Increased whole blood viscosity is associated with increased risk of morbidity and mortality of several life-threatening diseases, including cardiovascular and cerebrovascular disease. The effect of diet on human health has been indicated in many studies, and a health dietary pattern can reduce the incidence of several chronic diseases. Objective The aim of this systematic review was to assess the effect of diet on blood viscosity and related parameters such as haematocrit (HCT). Methods This systematic review was carried out in 2017. MEDLINE, Embase, Scopus, Web of Science, and the Cochrane Central Register of Controlled Trials were searched from inception to 2 May 2017. We selected and included randomized clinical trials (RCTs) in the study. The inclusion criteria were articles that describe the effect of any types of local and traditional diet on blood viscosity in apparently healthy individuals. Results Three randomized controlled trials were included in this systematic review. Different diets were used in the included trials. In one study, ingested dried–bonito broth (DBB) for four weeks, significantly reduced the blood passage time in the intervention group from 55.4±3.4 to 47.6±2.0 sec (mean ± SEM, p<0.05) compared with no significant change in the placebo group. Another study has shown significantly increased blood fluidity score in a vegetarian group in contrast to the control group after six weeks. In the last study, plasma viscosity was significantly decreased in a group which used onion–olive-oil capsules compared to the placebo group, with a highly significant difference between the two groups (p=0.0015). Conclusions Our components of food diets may decrease blood viscosity in health status. Better and expanded methodology may improve our results.
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Affiliation(s)
- Hamideh Naghedi-Baghdar
- Student Research Committee, Faculty of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed-Mohammad Nazari
- Faculty of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Taghipour
- Department of Biostatistics and Health Sciences Research Center, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Nematy
- Biochemistry and Nutrition Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sadegh Shokri
- Faculty of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad-Reza Mehri
- Student Research Committee, Faculty of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Tahereh Molkara
- Student Research Committee, Faculty of Persian and Complementary Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Roghayeh Javan
- Traditional and Complementary Medicine Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
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31
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Ning Y, Liu YW, Meng YS, Zhang JL. Design of Near-Infrared Luminescent Lanthanide Complexes Sensitive to Environmental Stimulus through Rationally Tuning the Secondary Coordination Sphere. Inorg Chem 2018; 57:1332-1341. [PMID: 29336570 DOI: 10.1021/acs.inorgchem.7b02750] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The design of near-infrared (NIR) emissive lanthanide (Ln) complexes sensitive to external stimulus is fundamentally important for the practical application of Ln materials. Because NIR emission from Ln is extremely sensitive to X-H (X = C, N and O) bond vibration, we herein report to harness the secondary coordination sphere to design NIR luminescent lanthanide sensors. Toward this goal, we designed and synthesized two isomeric [(η5-C5H5)Co{(D3CO)2P = O}3]-Yb(III)-7,8,12,13,17,18-hexafluoro-5,10,15,20-tetrakis(pentafluorophenyl)porpholactol NIR emitters, Yb-up and Yb-down, based on the stereoisomerism of porphyrin peripheral β-hydroxyl group. Yb-up, in which β-OH is at the same side of Yb(III) center, can form an intramolecular hydrogen bond with the axial Kläui ligand, whereas Yb-down cannot because its β-OH is opposite to Yb(III) center. X-ray crystal structures and photophysical studies suggested that the intramolecular hydrogen bond plays important roles on the NIR luminescence of ytterbium(III), which shortens the distance between β-OH and Yb(III) and facilitates the nonradiative deactivation of Ln excited state. Importantly, Yb-up/down were demonstrated to be highly sensitive toward temperature and viscosity. The PMMA polymer using Yb-up as the dopant NIR emitter showed thermosensitivity up to 6.0% °C-1 in the wide temperature range of 77-400 K, higher than that of Yb-down (3.8% °C-1). These complexes were also explored as the first NIR viscosity sensor, revealing their potential applications as optical sensors without visible light interference. This work demonstrates the importance of secondary coordination sphere on designing NIR Ln luminescent functional materials.
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Affiliation(s)
- Yingying Ning
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, PR China
| | - Yi-Wei Liu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, PR China
| | - Yin-Shan Meng
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, PR China
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, PR China
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Shamanaev AY, Aliev OI, Anishchenko AM, Sidehmenova AV, Plotnikov MB. Hemorheological effects of amlodipine in spontaneously hypertensive rats. Indian J Pharmacol 2018; 49:312-316. [PMID: 29326492 PMCID: PMC5754939 DOI: 10.4103/ijp.ijp_176_16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVES: The effect of course administration of amlodipine on whole blood viscosity and on macro- and microrheological parameters was evaluated. MATERIALS AND METHODS: SHRs were treated intragastrically with amlodipine at a dose of 10 mg/kg for 6 weeks. After finishing the course, hemodynamic and hemorheological parameters were measured. RESULTS: The antihypertensive treatment with amlodipine resulted in a significant decrease in mean blood pressure by 29% and left ventricular to body weight mass index by 7%. Nevertheless, BV tended to increase. The administration of amlodipine had no effect on PV, plasma fibrinogen concentration, RBC aggregation, and RBC deformability, but hematocrit was higher (by 6%) than it was in control group. CONCLUSIONS: These results demonstrate that amlodipine has no positive hemorheological improvements when administered to SHRs.
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Affiliation(s)
- Aleksandr Y Shamanaev
- Department of Pharmacology, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - Oleg I Aliev
- Department of Pharmacology, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - Anna M Anishchenko
- Department of Pharmacology, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - Anastasia V Sidehmenova
- Department of Pharmacology, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - Mark B Plotnikov
- Department of Pharmacology, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
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Basut F, Keşkek ŞÖ, Gülek B. Better Renal Resistive Index Profile in Subjects with Beta Thalassemia Minor. Med Princ Pract 2018; 27:367-371. [PMID: 29723861 PMCID: PMC6167719 DOI: 10.1159/000489780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 05/03/2018] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Beta thalassaemia minor is a common genetic disorder without any characteristic symptoms except mild anemia. It is found to be associated with some cardiovascular risk factors such as insulin resistance and diabetes mellitus. The renal resistive index (RRI) is a measure of renal arterial resistance to blood flow. The aim of this study was to evaluate the RRI in subjects with beta thalassemia minor (BTM). SUBJECTS AND METHODS A total of 253 subjects were included in this cross-sectional study. The study group consisted of 148 subjects with BTM and the control group consisted of 105 healthy subjects. BTM was diagnosed by a complete blood count and hemoglobin electrophoresis. Blood pressure measurement and biochemical tests were performed. The RRI of all subjects was measured using renal Doppler ultrasonography. RESULTS Subjects with BTM had lower renal resistive indices compared to healthy subjects (0.58 ± 0.04 vs. 0.60 ± 0.06, p = 0.0016). Additionally, the RRI levels of subjects with BTM were correlated with systolic blood pressure (p = 0.017, r = 0.194). CONCLUSION In this study, lower RRI were found in subjects with BTM. This may be associated with a decreased vascular resistance and blood viscosity in these subjects.
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Affiliation(s)
- Fahrettin Basut
- Department of Internal Medicine, Numune Training and Research Hospital, Adana, Turkey
| | - Şakir Özgür Keşkek
- Department of Internal Medicine, Numune Training and Research Hospital, Adana, Turkey
- *Şakir Özgür Keşkek, Department of Internal Medicine, Numune Training and Research Hospital, Yüreğir, Adana (Turkey), E-Mail
| | - Bozkurt Gülek
- Department of Radiology, Numune Training and Research Hospital, Adana, Turkey
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Plotnikov MB, Shamanaev AY, Aliev OI, Sidekhmenova AV, Anishchenko AM, Arkhipov AM. Pentoxifylline treatment enhances antihypertensive activity of captopril through hemorheological improvement in spontaneously hypertensive rats during development of arterial hypertension. ACTA ACUST UNITED AC 2017; 11:769-778. [DOI: 10.1016/j.jash.2017.09.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 09/07/2017] [Accepted: 09/10/2017] [Indexed: 01/23/2023]
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Weatherbee A, Popov I, Vitkin A. Accurate viscosity measurements of flowing aqueous glucose solutions with suspended scatterers using a dynamic light scattering approach with optical coherence tomography. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:1-10. [PMID: 28861954 DOI: 10.1117/1.jbo.22.8.087003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
The viscosity of turbid colloidal glucose solutions has been accurately determined from spectral domain optical coherence tomography (OCT) M-mode measurements and our recently developed OCT dynamic light scattering model. Results for various glucose concentrations, flow speeds, and flow angles are reported. The relative "combined standard uncertainty" uc(η) on the viscosity measurements was ±1% for the no-flow case and ±5% for the flow cases, a significant improvement in measurement robustness over previously published reports. The available literature data for the viscosity of pure water and our measurements differ by 1% (stagnant case) and 1.5% (flow cases), demonstrating good accuracy; similar agreement is seen across the measured glucose concentration range when compared to interpolated literature values. The developed technique may contribute toward eventual noninvasive glucose measurements in medicine.
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Affiliation(s)
- Andrew Weatherbee
- University of Toronto, Department of Medical Biophysics, Toronto, Ontario, Canada
| | - Ivan Popov
- University of Toronto, Department of Medical Biophysics, Toronto, Ontario, Canada
| | - Alex Vitkin
- University of Toronto, Department of Medical Biophysics, Toronto, Ontario, Canada
- University of Toronto, Department of Radiation Oncology, Toronto, Ontario, Canada
- University Health Network, Ontario Cancer Institute, Division of Biophysics and Bioimaging, Toronto,, Canada
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Plotnikov MB, Aliev OI, Shamanaev AY, Sidekhmenova AV, Anfinogenova Y, Anishchenko AM, Fomina TI, Arkhipov AM. Effects of pentoxifylline on hemodynamic, hemorheological, and microcirculatory parameters in young SHRs during arterial hypertension development. Clin Exp Hypertens 2017; 39:570-578. [PMID: 28722518 DOI: 10.1080/10641963.2017.1291662] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The most common form of hypertension in young adults is isolated diastolic hypertension. Diastolic arterial pressure is determined by the total peripheral resistance and depends on both vascular hindrance and blood viscosity. The aim of our work was to study the efficiency of pentoxifylline (PTX) in young spontaneously hypertensive rats (SHRs) during the development of arterial hypertension. The effects of a treatment course with PTX (100 mg/kg/day p.o. for 6 weeks, from 5 to 11 weeks old) on the mean, systolic, and diastolic blood pressure (BP); stroke volume; cardiac output; total peripheral resistance (TPR); whole blood viscosity (BV); plasma viscosity; hematocrit; RBC aggregation and deformability; local cerebral blood flow (lCBF); and microvascularization of the visual cortex were studied in SHRs in comparison with control SHRs and Wistar Kyoto rats. PTX-treated SHRs had significantly lower systolic, diastolic, and mean BP (by 24%, 26%, and 15%, respectively) and BV (by 5-9%) and a higher erythrocyte deformability index (by 1.5-2%), lCBF (by 42%), average diameter of capillaries (by 11%), density of the capillary network (by 23%), and percentage of capillaries with a diameter of 3-7 µm in comparison with control SHRs. In conclusion, PTX exerted positive effects on the hemodynamic, hemorheological, and microcirculatory parameters in SHRs during the development of arterial hypertension.
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Affiliation(s)
- Mark B Plotnikov
- a Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences , Tomsk , Russia
| | - Oleg I Aliev
- a Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences , Tomsk , Russia
| | - Alexander Y Shamanaev
- a Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences , Tomsk , Russia
| | - Anastasia V Sidekhmenova
- a Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences , Tomsk , Russia
| | - Yana Anfinogenova
- b Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences , Tomsk , Russia.,c RASA Center in Tomsk, Tomsk Polytechnic University , Tomsk , Russia
| | - Anna M Anishchenko
- a Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences , Tomsk , Russia
| | - Tatiana I Fomina
- a Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences , Tomsk , Russia
| | - Alexander M Arkhipov
- a Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences , Tomsk , Russia
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Plotnikov MB, Aliev OI, Sidekhmenova AV, Shamanaev AY, Anishchenko AM, Nosarev AV, Pushkina EA. Modes of Hypotensive Action of Dihydroquercetin in Arterial Hypertension. Bull Exp Biol Med 2017; 162:353-356. [PMID: 28091909 DOI: 10.1007/s10517-017-3614-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Indexed: 01/28/2023]
Abstract
We studied the effect of dihydroquercetin (20 mg/kg/day intragastrically for 6 weeks) on mean BP and macro- and microrheological blood parameters in hypertensive SHR rats; in vitro effect of dihydroquercetin on the tone in thoracic aorta rings isolated from hypertensive SHR rats were also examined. At the end of the treatment course, the mean BP in the experimental rats decreased by 11%; the left ventricular mass index by 2%, and whole blood viscosity by 7-10% in comparison with control SHR rats; erythrocyte aggregation half-time increased by 15%; plasma viscosity, hematocrit, and erythrocyte deformability did not change. In in vitro experiments, dihydroquercetin (10-8-10-6M) induced relaxation of the isolated thoracic aorta rings in a dose-dependent manner. Hence, the antihypertensive effect of dihydroquercetin results from the decrease in blood viscosity and vasodilation.
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Affiliation(s)
- M B Plotnikov
- Laboratory of Circulation Pharmacology, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia.
| | - O I Aliev
- Laboratory of Circulation Pharmacology, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - A V Sidekhmenova
- Laboratory of Circulation Pharmacology, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - A Yu Shamanaev
- Laboratory of Circulation Pharmacology, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - A M Anishchenko
- Laboratory of Circulation Pharmacology, E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk, Russia
| | - A V Nosarev
- Department of Biophysics and Functional Diagnostics, Siberian State Medical University, Tomsk, Russia
| | - E A Pushkina
- Department of Biophysics and Functional Diagnostics, Siberian State Medical University, Tomsk, Russia
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The Association between Residence Floor Level and Cardiovascular Disease: The Health and Environment in Oslo Study. JOURNAL OF ENVIRONMENTAL AND PUBLIC HEALTH 2016; 2016:2951658. [PMID: 28053608 PMCID: PMC5174177 DOI: 10.1155/2016/2951658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Accepted: 10/26/2016] [Indexed: 11/30/2022]
Abstract
Background. Increasingly more people live in tall buildings and on higher floor levels. Factors relating to floor level may protect against or cause cardiovascular disease (CVD). Only one previous study has investigated the association between floor level and CVD. Methods. We studied associations between floor of bedroom and self-reported history of stroke, venous thromboembolism (VTE), and intermittent claudication (IC) among 12.525 inhabitants in Oslo, Norway. We fitted multivariate logistic regression models and adjusted for sociodemographic variables, socioeconomic status (SES), and health behaviors. Additionally, we investigated block apartment residents (N = 5.374) separately. Results. Trend analyses showed that disease prevalence increased by floor level, for all three outcomes. When we investigated block apartment residents alone, the trends disappeared, but one association remained: higher odds of VTE history on 6th floor or higher, compared to basement and 1st floor (OR: 1.504; 95% CI: 1.007–2.247). Conclusion. Floor level is positively associated with CVD, in Oslo. The best-supported explanation may be residual confounding by building height and SES. Another explanation, about the impact of atmospheric electricity, is also presented. The results underline a need to better understand the associations between residence floor level and CVD and multistory housing and CVD.
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Simmonds MJ, Milne N, Ong K, Brotherton E, McNamee AP, Horobin J, Sabapathy S. Physical Properties of Blood Are Altered in Young and Lean Women with Polycystic Ovary Syndrome. PLoS One 2016; 11:e0167290. [PMID: 27902766 PMCID: PMC5130252 DOI: 10.1371/journal.pone.0167290] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Accepted: 11/11/2016] [Indexed: 02/07/2023] Open
Abstract
Classic features of polycystic ovary syndrome (PCOS) include derangement of metabolic and cardiovascular health, and vascular dysfunction is commonly reported. These comorbidities indicate impaired blood flow; however, other than limited reports of increased plasma viscosity, surprisingly little is known regarding the physical properties of blood in PCOS. We aimed to investigate whether haemorheology was impaired in women with PCOS. We thus measured a comprehensive haemorheological profile, in a case-control design, of lean women with PCOS and age-matched healthy controls. A clinical examination determined similar cardiovascular risk for the two groups. Whole blood and plasma viscosity was measured using a cone-plate viscometer. The magnitude and rate of red blood cell (RBC) aggregation was determined using a light-transmission aggregometer, and the degree of RBC deformability was measured via laser-diffraction ektacytometry. Plasma viscosity was significantly increased in women with PCOS. Blood viscosity was also increased for PCOS at lower-to-moderate shear rates in both native and standardised haematocrit samples. The magnitude of RBC aggregation–a primary determinant of low-shear blood viscosity–was significantly increased in PCOS at native and 0.4 L·L-1 haematocrit. No difference was detected between PCOS and CON groups for RBC deformability measurements. A novel measure indicating the effectiveness of oxygen transport by RBC (i.e., the haematocrit-to-viscosity ratio; HVR) was decreased at all shear rates in women with PCOS. In a group of young and lean women with PCOS with an unremarkable cardiovascular risk profile based on clinical data, significant haemorheological impairment was observed. The degree of haemorheological derangement observed in the present study reflects that of overt chronic disease, and provides an avenue for future therapeutic intervention in PCOS.
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Affiliation(s)
- Michael J. Simmonds
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
- * E-mail:
| | - Nikki Milne
- Bond Institute of Health and Sport, Faculty of Health Sciences and Medicine, Bond University, Gold Coast, Queensland, Australia
| | - Kee Ong
- Monash IVF, Southport, Queensland, Australia
| | - Emily Brotherton
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Antony P. McNamee
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Jarod Horobin
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Surendran Sabapathy
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
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Cetin MS, Ozcan Cetin EH, Balcı KG, Aydin S, Ediboglu E, Bayraktar MF, Balcı MM, Maden O, Temizhan A, Aydogdu S. The Association between Whole Blood Viscosity and Coronary Collateral Circulation in Patients with Chronic Total Occlusion. Korean Circ J 2016; 46:784-790. [PMID: 27826336 PMCID: PMC5099333 DOI: 10.4070/kcj.2016.46.6.784] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/31/2016] [Accepted: 04/05/2016] [Indexed: 11/19/2022] Open
Abstract
Background and Objectives Coronary collateral circulation (CCC) has been attributed as inborn bypass mechanisms supporting ischemic myocardium. Various factors have been postulated in CCC. Whole blood viscosity (WBV) has been an underappreciated entity despite close relationships between multiple cardiovascular diseases. WBV can be calculated with a validated equation from hematocrit and total plasma protein levels for a low and high shear rate. On the grounds, we aimed to evaluate the association between WBV and CCC in patients with chronic total occlusion. Subjects and Methods A total of 371 patients diagnosed as having at least one major, chronic total occluded coronary artery were included. 197 patients with good CCC (Rentrop 2 and 3) composed the patient group. The poor collateral group consisted of 174 patients (Rentrop grade 0 and 1). Results Patients with poor CCC had higher WBV values for a low-shear rate (LSR) (69.5±8.7 vs. 60.1±9.8, p<0.001) and high-shear rate (HSR) (17.0±2.0 vs. 16.4±1.8, p<0.001) than the good collateral group. Correlation analysis demonstrated a significant negative correlation between the grade of CCC and WBV for LSR (β=0.597, p<0.001) and HSR (β=0.494, p<0.001). WBV for LSR (β=0.476, p<0.001) and HSR (β=0.407, p<0.001) had a significant correlation with the synergy between percutaneous coronary intervention with taxus and cardiac surgery (SYNTAX) score. A multivariate analysis showed that the WBV for both shear rates were independent risk factors of poor CCC (WBV at LSR, OR: 1.362 CI 95%: 1.095-1.741 p<0.001 and WBV at HSR, 1.251 CI 95%: 1.180-1.347 p<0.001). Conclusion WBV has been demonstrated as the overlooked predictor of poor coronary collateralization. WBV seemed to be associated with microvascular perfusion and angiogenesis process impairing CCC development.
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Affiliation(s)
- Mehmet Serkan Cetin
- Department of Cardiology, Türkiye Yüksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Elif Hande Ozcan Cetin
- Department of Cardiology, Türkiye Yüksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Kevser Gülcihan Balcı
- Department of Cardiology, Türkiye Yüksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Selahattin Aydin
- Department of Cardiology, Türkiye Yüksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Emek Ediboglu
- Department of Cardiology, Türkiye Yüksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | | | - Mustafa Mücahit Balcı
- Department of Cardiology, Türkiye Yüksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Orhan Maden
- Department of Cardiology, Türkiye Yüksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Ahmet Temizhan
- Department of Cardiology, Türkiye Yüksek Ihtisas Training and Research Hospital, Ankara, Turkey
| | - Sinan Aydogdu
- Department of Cardiology, Türkiye Yüksek Ihtisas Training and Research Hospital, Ankara, 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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Plotnikov MB, Aliev OI, Nosarev AV, Shamanaev AY, Sidekhmenova AV, Anfinogenova Y, Anishchenko AM, Pushkina EV. Relationship between arterial blood pressure and blood viscosity in spontaneously hypertensive rats treated with pentoxifylline. Biorheology 2016; 53:93-107. [DOI: 10.3233/bir-15100] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Mark B. Plotnikov
- E.D. Goldberg Institute of Pharmacology and Regenerative Medicine, Russian Academy of Sciences, Tomsk, Russia
| | - Oleg I. Aliev
- E.D. Goldberg Institute of Pharmacology and Regenerative Medicine, Russian Academy of Sciences, Tomsk, Russia
| | | | - Alexander Y. Shamanaev
- E.D. Goldberg Institute of Pharmacology and Regenerative Medicine, Russian Academy of Sciences, Tomsk, Russia
| | - Anastasia V. Sidekhmenova
- E.D. Goldberg Institute of Pharmacology and Regenerative Medicine, Russian Academy of Sciences, Tomsk, Russia
| | - Yana Anfinogenova
- Federal State Budgetary Scientific Institution “Research Institute for Cardiology”, Tomsk, Russia
- RASA Center in Tomsk, Tomsk Polytechnic University, Tomsk, Russia
| | - Anna M. Anishchenko
- E.D. Goldberg Institute of Pharmacology and Regenerative Medicine, Russian Academy of Sciences, Tomsk, Russia
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Moshetova LK, Yarovaya GA, Tsikhonchuk TV, Neshkova EA, Turkina KI. [Changes in hemostasis-related parameters of blood and lacrimal fluid in patients with retinal vein occlusion]. Vestn Oftalmol 2016. [PMID: 28635928 DOI: 10.17116/oftalma2016132488-93] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
High prevalence of retinal vein occlusion in young people as well as treatment complexity and inadequate control of hemostatic parameters of blood and lacrimal fluid determine the significance of relevant research in patients with retinal vascular pathology. The data thus obtained may be useful for disease prognosis, severity evaluation and therapy control. This review is aimed to study hemostasis-related parameters of blood and lacrimal fluid in such patients.
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Affiliation(s)
- L K Moshetova
- Russian Medical Academy of Postgraduate Education, Ministry of Health of the Russian Federation, 2/1 Barrikadnaya St., Moscow, Russian Federation, 125993
| | - G A Yarovaya
- Russian Medical Academy of Postgraduate Education, Ministry of Health of the Russian Federation, 2/1 Barrikadnaya St., Moscow, Russian Federation, 125993
| | - T V Tsikhonchuk
- Russian Medical Academy of Postgraduate Education, Ministry of Health of the Russian Federation, 2/1 Barrikadnaya St., Moscow, Russian Federation, 125993
| | - E A Neshkova
- Russian Medical Academy of Postgraduate Education, Ministry of Health of the Russian Federation, 2/1 Barrikadnaya St., Moscow, Russian Federation, 125993
| | - K I Turkina
- Russian Medical Academy of Postgraduate Education, Ministry of Health of the Russian Federation, 2/1 Barrikadnaya St., Moscow, Russian Federation, 125993
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Li XS, Cheng SJ, Cao ZG, Li Y, Wang RT. Elevated whole blood viscosity in patients with lumbar disc herniation. Clin Hemorheol Microcirc 2015; 62:291-8. [PMID: 26444601 DOI: 10.3233/ch-151970] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Various vascular risk factors such as smoking, obesity, and diabetes mellitus are associated with hyperviscosity and lumbar disc herniation (LDH). However, the changes of viscosity in LDH have not been examined. AIMS The present study was to elucidate 1) the rheological parameter levels in patients with LDH, 2) the risk factors that were related to rheological parameters. METHODS Our study evaluated the rheological parameters in 307 cases with LDH and in 307 control subjects. Multiple linear regression analysis was conducted to assess the significant factors for whole blood viscosity (WBV) at low shear rate. RESULTS LDH patients had markedly lower physical activity and significantly higher WBV 3 s-1 compared with non-LDH subjects (p < 0.001). Moreover, WBV (3 s-1) tended to increase as physical activity decreased. Multiple linear regression analysis revealed that reduced physical activity was a significant factor contributing to elevated WBV (3 s-1). CONCLUSIONS WBV (3 s-1) is elevated in patients with LDH. In addition, reduced physical activity is a significant factor for WBV (3 s-1). Further studies are warranted to determine the role of WBV (3 s-1) in LDH.
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Affiliation(s)
- Xue-Song Li
- Department of Orthopedics, The First Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China
| | - Su-Jun Cheng
- Department of Geriatrics, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China
| | - Zhi-Gang Cao
- Department of Interventional Radiology, the Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China
| | - Ying Li
- Department of Geriatrics, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China.,International Physical Examination and Healthy Center, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China
| | - Rui-Tao Wang
- Department of Geriatrics, The Second Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang, China
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Sloop GD, Weidman JJ, St. Cyr JA. The systemic vascular resistance response: a cardiovascular response modulating blood viscosity with implications for primary hypertension and certain anemias. Ther Adv Cardiovasc Dis 2015; 9:403-11. [DOI: 10.1177/1753944715591450] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Without an active regulatory feedback loop, increased blood viscosity could lead to a vicious cycle of ischemia, increased erythropoiesis, further increases of blood viscosity, decreased tissue perfusion with worsened ischemia, further increases in red cell mass, etc. We suggest that an increase in blood viscosity is detected by mechanoreceptors in the left ventricle which upregulate expression of cardiac natriuretic peptides and soluble erythropoietin receptor. This response normalizes systemic vascular resistance and blood viscosity at the cost of producing ‘anemia of chronic disease or inflammation’ or ‘hemolytic anemia’ both of which are better described as states of compensated hyperviscosity. Besides its role in disease, this response is also active in the physiologic adaptation to chronic exercise. Malfunction of this response may cause primary hypertension.
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Affiliation(s)
- Gregory D. Sloop
- Benefis Hospital, 1101 26th Street South, Great Falls, MT 59405, USA
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Sloop GD, Weidman JJ, St.Cyr JA. Perspective The failure of cholesteryl ester transfer protein inhibitors: is it due to increased blood viscosity? Ther Adv Cardiovasc Dis 2015; 9:32-5. [DOI: 10.1177/1753944714566427] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Gregory D. Sloop
- Department of Pathology, Benefis Hospitals, Great Falls, MT 59405, USA
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Ozcan Cetin EH, Cetin MS, Canpolat U, Kalender E, Topaloglu S, Aras D, Aydogdu S. The Forgotten Variable of Shear Stress in Mitral Annular Calcification: Whole Blood Viscosity. Med Princ Pract 2015; 24:444-50. [PMID: 26159574 PMCID: PMC5588262 DOI: 10.1159/000431362] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 05/13/2015] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE The aim of this research was to assess the relationship between mitral annular calcification (MAC) and whole blood viscosity (WBV). SUBJECTS AND METHODS A total of 184 patients with MAC and 133 patients without MAC were enrolled in the study. The WBV was calculated with a confirmed formulation using the hematocrit and total plasma protein at a low shear rate (LSR) and high shear rate (HSR). Early diastolic mitral annular velocity (Ea) and late diastolic mitral annular velocity (Aa) were measured using pulse Doppler tissue echocardiography. Pearson's correlation analysis was performed to assess the relationship between WBV and mitral annular motion velocities. The effects of different variables on the occurrence of MAC were assessed in univariate and multivariate logistic regression analysis. RESULTS In patients with MAC, WBV values were significantly higher at HSR (18.04 ± 0.84 vs. 17.25 ± 0.96 208 s(-1), p < 0.001) and at LSR (78.0 ± 14.2 vs. 61.9 ± 17.1 0.5 s(-1), p < 0.001). The WBV at HSR and LSR were significantly correlated with Ea (r = -0.477, p < 0.001; r = -0.385, p < 0.001, respectively) and Aa (r = -0.544, p < 0.001; r = -0.323, p < 0.001, respectively). Multivariate analysis showed that WBV of both shear rates was an independent predictor of MAC. Using the ROC curve, a cut-off value of 70.1 for WBV at LSR had a sensitivity of 83.7% and a specificity of 73.7% (AUC 0.785, p < 0.001) and a WBV cut-off value of 17.5 at HSR had a sensitivity of 79.6% and a specificity of 71.4% (AUC 0.761, p < 0.001) for the prediction of MAC. CONCLUSION Patients with MAC had significantly higher WBV, which independently predicted the presence of MAC. WBV had an inverse correlation with mitral annular motion velocities, indicating that a higher WBV may lead to greater limitation in annular motion and, thus, more calcification.
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Affiliation(s)
- Elif Hande Ozcan Cetin
- *Elif Hande Ozcan Cetin, MD, Cardiology Clinic, Yuksek Ihtisas Education and Research Hospital, Kýzýlay Street, TR-06100 Ankara (Turkey), E-Mail
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