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Sveshnikova AN, Shibeko AM, Kovalenko TA, Panteleev MA. Kinetics and regulation of coagulation factor X activation by intrinsic tenase on phospholipid membranes. J Theor Biol 2024; 582:111757. [PMID: 38336240 DOI: 10.1016/j.jtbi.2024.111757] [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: 08/28/2023] [Revised: 12/13/2023] [Accepted: 01/31/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Factor X activation by the phospholipid-bound intrinsic tenase complex is a critical membrane-dependent reaction of blood coagulation. Its regulation mechanisms are unclear, and a number of questions regarding diffusional limitation, pathways of assembly and substrate delivery remain open. METHODS We develop and analyze here a detailed mechanism-driven computer model of intrinsic tenase on phospholipid surfaces. Three-dimensional reaction-diffusion-advection and stochastic simulations were used where appropriate. RESULTS Dynamics of the system was predominantly non-stationary under physiological conditions. In order to describe experimental data, we had to assume both membrane-dependent and solution-dependent delivery of the substrate. The former pathway dominated at low cofactor concentration, while the latter became important at low phospholipid concentration. Factor VIIIa-factor X complex formation was the major pathway of the complex assembly, and the model predicted high affinity for their lipid-dependent interaction. Although the model predicted formation of the diffusion-limited layer of substrate for some conditions, the effects of this limitation on the fXa production were small. Flow accelerated fXa production in a flow reactor model by bringing in fIXa and fVIIIa rather than fX. CONCLUSIONS This analysis suggests a concept of intrinsic tenase that is non-stationary, employs several pathways of substrate delivery depending on the conditions, and is not particularly limited by diffusion of the substrate.
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Affiliation(s)
- Anastasia N Sveshnikova
- National Medical and Research Center of Pediatric Hematology, Oncology and Immunology Named After Dmitry Rogachev, 1 Samory Mashela St, Moscow, 117198, Russia; Faculty of Fundamental Physico-Chemical Engineering, Lomonosov Moscow State University, 1/51 Leninskie Gory, 119991 Moscow, Russia; Department of Normal Physiology, Sechenov First Moscow State Medical University, 8/2 Trubetskaya St., 119991 Moscow, Russia; Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, 4 Kosygina St, Moscow, 119991, Russia
| | - Alexey M Shibeko
- National Medical and Research Center of Pediatric Hematology, Oncology and Immunology Named After Dmitry Rogachev, 1 Samory Mashela St, Moscow, 117198, Russia; Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, 4 Kosygina St, Moscow, 119991, Russia
| | - Tatiana A Kovalenko
- National Medical and Research Center of Pediatric Hematology, Oncology and Immunology Named After Dmitry Rogachev, 1 Samory Mashela St, Moscow, 117198, Russia; Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, 4 Kosygina St, Moscow, 119991, Russia
| | - Mikhail A Panteleev
- National Medical and Research Center of Pediatric Hematology, Oncology and Immunology Named After Dmitry Rogachev, 1 Samory Mashela St, Moscow, 117198, Russia; Center for Theoretical Problems of Physicochemical Pharmacology, Russian Academy of Sciences, 4 Kosygina St, Moscow, 119991, Russia; Faculty of Physics, Lomonosov Moscow State University, 1/2 Leninskie Gory, Moscow, 119991, Russia.
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Liu L, Qin M, Ji J, Wang W. Correlation between hearing impairment and the Triglyceride Glucose Index: based on a national cross-sectional study. Front Endocrinol (Lausanne) 2023; 14:1216718. [PMID: 37424854 PMCID: PMC10325635 DOI: 10.3389/fendo.2023.1216718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/06/2023] [Indexed: 07/11/2023] Open
Abstract
Objective Data from the National Health and Nutrition Examination Survey (NHANES) were used to assess the association between the triglyceride-glucose (TyG) index and hearing impairment (HI). Methods We used eight survey cycles from NHANES 2001-2012 and 2015-2018 to conduct this cross-sectional study. HI was designed as an dependent variable, and the TyG index was selected as an exposure factor (independent variable). The correlation between the two variables was assessed using multiple logistic regression. In order to assess whether there was a non-linear relationship between the TyG index and HI, the TyG index was distributed and a test for trend was conducted (P for trend), followed by smooth curve fitting (penalized spline) and generalized additive model (GAM) regression. We also performed a subgroup analysis to identify sensitive groups whose responses were clearly associated with independent variables. Results 10,906 participants were finally included in the study, and those with a higher TyG index had a higher frequency of hearing impairment. There was a linear positive correlation between the TyG index and HI. For the low-frequency HI, however, this positive correlation was not statistically significant (OR = 1.05, 95% CI: 0.98, 1.14); however, it was more stable for the high-frequency HI (OR = 1.12, 95% CI: 1.03, 1.22). Additionally, as the TyG index increased, this positive association increased as well (P for trend = 0.05). The HPTA test showed a positive association with more severe HI (simultaneous) as the independent variable increased (OR = 1.14, 95% CI: 1.05-1.24), and this association was even more significant with increasing severity (P for trend 0.05). According to the subgroup analysis, the positive association between TyG index and high-frequency HI was more significant in females, 40-69 years old, without hypertension or diabetes, and when strict high-frequency HI was significant in males, females, 40-69 years old, with hypertension and diabetes. Conclusion Participants with a higher TyG index may have a higher risk of HI. TyG index and HI risk showed a linear relationship, which became even more significant when HPTA was included.
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Affiliation(s)
- Long Liu
- Department Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Maolin Qin
- Department Otorhinolaryngology, Head and Neck Surgery, Wuhu Hospital, East China Normal University (The Second People’s Hospital of Wuhu), Wuhu, Anhui, China
| | - Jiabiao Ji
- Department Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Weiqing Wang
- Department Otorhinolaryngology, Head and Neck Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
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Thrombin Generation in Trauma Patients: How Do we Navigate Through Scylla and Charybdis? CURRENT ANESTHESIOLOGY REPORTS 2022. [DOI: 10.1007/s40140-021-00502-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Maly M, Riedel T, Stikarova J, Suttnar J, Kotlin R, Hajsl M, Tousek P, Kaufmanova J, Kucerka O, Weisel JW, Dyr JE. Incorporation of Fibrin, Platelets, and Red Blood Cells into a Coronary Thrombus in Time and Space. Thromb Haemost 2021; 122:434-444. [PMID: 34781375 DOI: 10.1055/s-0041-1739193] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
We describe the internal structure, spatial organization and dynamic formation of coronary artery thrombi from ST-segment elevation myocardial infarction patients. Scanning electron microscopy (SEM) revealed significant differences among four groups of patients (<2 hours; 2-6 hours; 6-12 hours, and >12 hours) related to the time of ischemia. Coronary artery thrombi from patients presenting less than 2 hours after the infarction were almost entirely composed of platelets, with small amounts of fibrin and red blood cells. In contrast, thrombi from late presenters (>12 hours) consisted of mainly platelets at the distal end, where clotting was initiated, with almost no platelets at the proximal end, while the red blood cell content went from low at the initiating end to more than 90% at the proximal end. Furthermore, fibrin was present mainly on the outside of the thrombi and older thrombi contained thicker fibers. The red blood cells in late thrombi were compressed to a close-packed, tessellated array of polyhedral structures, called polyhedrocytes. Moreover, there was redistribution from the originally homogeneous composition to fibrin and platelets to the outside, with polyhedrocytes on the interior. The presence of polyhedrocytes and the redistribution of components are signs of in vivo clot contraction (or retraction). These results suggest why later thrombi are resistant to fibrinolytic agents and other treatment modalities, since the close-packed polyhedrocytes form a nearly impermeable seal. Furthermore, it is of particular clinical significance that these findings suggest specific disparate therapies that will be most effective at different stages of thrombus development.
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Affiliation(s)
- Martin Maly
- First Faculty of Medicine, Department of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic
| | - Tomas Riedel
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic.,Chemistry and Physics of Surfaces and Biointerfaces, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Jana Stikarova
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Jiri Suttnar
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Roman Kotlin
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Martin Hajsl
- First Faculty of Medicine, Department of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic
| | - Petr Tousek
- Cardiocenter, University Hospital Kralovske Vinohrady and Third Medical Faculty, Charles University, Prague, Czech Republic
| | - Jirina Kaufmanova
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic.,Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - Ondrej Kucerka
- First Faculty of Medicine, Department of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic
| | - John W Weisel
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - Jan E Dyr
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
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Abstract
Distinct from dilute, isotropic, and homogeneous reaction systems typically used in laboratory kinetic assays, blood is concentrated, two-phase, flowing, and highly anisotropic when clotting on a surface. This review focuses on spatial gradients that are generated and can dictate thrombus structure and function. Novel experimental and computational tools have recently emerged to explore reaction-transport coupling during clotting. Multiscale simulations help bridge tissue length scales (the coronary arteries) to millimeter scales of a growing clot to the microscopic scale of single-cell signaling and adhesion. Microfluidic devices help create and control pathological velocity profiles, albeit at a low Reynolds number. Since rate processes and force loading are often coupled, this review highlights prevailing convective-diffusive transport physics that modulate cellular and molecular processes during thrombus formation.
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Teeraratkul C, Mukherjee D. Microstructure aware modeling of biochemical transport in arterial blood clots. J Biomech 2021; 127:110692. [PMID: 34479090 DOI: 10.1016/j.jbiomech.2021.110692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 07/14/2021] [Accepted: 08/09/2021] [Indexed: 01/29/2023]
Abstract
Flow-mediated transport of biochemical species is central to thrombotic phenomena. Comprehensive three-dimensional modeling of flow-mediated transport around realistic macroscale thrombi poses challenges owing to their arbitrary heterogeneous microstructure. Here, we develop a microstructure aware model for species transport within and around a macroscale thrombus by devising a custom preconditioned fictitious domain formulation for thrombus-hemodynamics interactions, and coupling it with a fictitious domain advection-diffusion formulation for transport. Microstructural heterogeneities are accounted through a hybrid discrete particle-continuum approach for the thrombus interior. We present systematic numerical investigations on unsteady arterial flow within and around a three-dimensional macroscale thrombus; demonstrate the formation of coherent flow structures around the thrombus which organize advective transport; illustrate the role of the permeation processes at the thrombus boundary and subsequent intra-thrombus transport; and characterize species transport from bulk flow to the thrombus boundary and vice versa.
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Affiliation(s)
- Chayut Teeraratkul
- Paul M Rady Department of Mechanical Engineering, University of Colorado Boulder, United States of America.
| | - Debanjan Mukherjee
- Paul M Rady Department of Mechanical Engineering, University of Colorado Boulder, United States of America.
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Shao M, Xiong G, Xiang G, Xu S, Zhang L. Correlation between serum lipid and prognosis of idiopathic sudden sensorineural hearing loss: a prospective cohort study. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:676. [PMID: 33987374 PMCID: PMC8106097 DOI: 10.21037/atm-21-907] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/01/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND To investigate the correlation between blood lipids and the prognosis of idiopathic sudden sensorineural hearing loss (ISSNHL). METHODS We included 232 patients with ISSNHL at the Second Affiliated Hospital of Shanghai University from June 2015 to March 2017 using a prospective cohort study design. We collected information including age, gender, hypertension, diabetes, mellitus, vertigo, as well as the levels of blood total cholesterol (TC), triglycerides (TG), and low-density lipoproteins (LDL-C). We also recorded the ratio between the levels of low-density lipoproteins and the levels of high-density lipoproteins (LDL-C/HDL-C ratio). Correlations between the prognosis of ISSNHL and TC, TG, LDL-C, and LDL-C/HDL-C ratio were analyzed by univariable and multivariable logistic regression analyses. RESULTS The clinical effectiveness rate of patients with TC ranging from 5.2 to 6.2 mmol/L was significantly higher than that of patients with TC <5.2 mmol/L (P<0.001). No notable difference was found between patients with TC <5.2 mmol/L and patients with TC ≥6.2 mmol/L. The clinical effectiveness rate of patients in TG ranging from 1.7 mmol/L to 2.3 mmol/L was markedly higher than those in TG <1.7 mmol/L (P<0.001). No significant difference was found between patients with TG ranging from 2.3 to 5.6 mmol/L, TG ≥5.6 mmol/L, and TG <1.7 mmol/L. The clinical effectiveness rate of patients in LDL-C/HDL-C <1.5 was considerably higher than those in LDL-C/HDL-C ranging from 1.5 to 2.5, 2.5 to 3.5, and ≥3.5 (P<0.001). CONCLUSIONS Our findings indicated that TC, TG, and the LDL-C/HDL-C ratio are strongly associated with the prognosis of ISSNHL. These three indices could be recommended as independent markers to predict outcomes.
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Affiliation(s)
- Minmin Shao
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Shanghai University (Wenzhou Central Hospital), Wenzhou, China
| | - Guofeng Xiong
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Shanghai University (Wenzhou Central Hospital), Wenzhou, China
| | - Guangzao Xiang
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Shanghai University (Wenzhou Central Hospital), Wenzhou, China
| | - Shile Xu
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Shanghai University (Wenzhou Central Hospital), Wenzhou, China
| | - Liqun Zhang
- Department of Otorhinolaryngology, The Second Affiliated Hospital of Shanghai University (Wenzhou Central Hospital), Wenzhou, China
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Mitrophanov AY, Merrill-Skoloff G, Grover SP, Govindarajan V, Kolanjiyil A, Hariprasad DS, Unnikrishnan G, Flaumenhaft R, Reifman J. Injury Length and Arteriole Constriction Shape Clot Growth and Blood-Flow Acceleration in a Mouse Model of Thrombosis. Arterioscler Thromb Vasc Biol 2020; 40:2114-2126. [PMID: 32640902 DOI: 10.1161/atvbaha.120.314786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
OBJECTIVE Quantitative relationships between the extent of injury and thrombus formation in vivo are not well understood. Moreover, it has not been investigated how increased injury severity translates to blood-flow modulation. Here, we investigated interconnections between injury length, clot growth, and blood flow in a mouse model of laser-induced thrombosis. Approach and Results: Using intravital microscopy, we analyzed 59 clotting events collected from the cremaster arteriole of 14 adult mice. We regarded injury length as a measure of injury severity. The injury caused transient constriction upstream and downstream of the injury site resulting in a 50% reduction in arteriole diameter. The amount of platelet accumulation and fibrin formation did not depend on arteriole diameter or deformation but displayed an exponentially increasing dependence on injury length. The height of the platelet clot depended linearly on injury length and the arteriole diameter. Upstream arteriolar constriction correlated with delayed upstream velocity increase, which, in turn, determined downstream velocity. Before clot formation, flow velocity positively correlated with the arteriole diameter. After the onset of thrombus growth, flow velocity at the injury site negatively correlated with the arteriole diameter and with the size of the above-clot lumen. CONCLUSIONS Injury severity increased platelet accumulation and fibrin formation in a persistently steep fashion and, together with arteriole diameter, defined clot height. Arterial constriction and clot formation were characterized by a dynamic change in the blood flow, associated with increased flow velocity.
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Affiliation(s)
- Alexander Y Mitrophanov
- From the DoD Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, US Army Medical Research and Development Command, Ft. Detrick, MD (A.Y.M., V.G., A.K., D.S.H., G.U., J.R.).,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD (A.Y.M., V.G., A.K., D.S.H., G.U.)
| | - Glenn Merrill-Skoloff
- Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (G.M.-S., S.P.G., R.F.)
| | - Steven P Grover
- Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (G.M.-S., S.P.G., R.F.)
| | - Vijay Govindarajan
- From the DoD Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, US Army Medical Research and Development Command, Ft. Detrick, MD (A.Y.M., V.G., A.K., D.S.H., G.U., J.R.).,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD (A.Y.M., V.G., A.K., D.S.H., G.U.)
| | - Arun Kolanjiyil
- From the DoD Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, US Army Medical Research and Development Command, Ft. Detrick, MD (A.Y.M., V.G., A.K., D.S.H., G.U., J.R.).,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD (A.Y.M., V.G., A.K., D.S.H., G.U.)
| | - Daniel S Hariprasad
- From the DoD Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, US Army Medical Research and Development Command, Ft. Detrick, MD (A.Y.M., V.G., A.K., D.S.H., G.U., J.R.).,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD (A.Y.M., V.G., A.K., D.S.H., G.U.)
| | - Ginu Unnikrishnan
- From the DoD Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, US Army Medical Research and Development Command, Ft. Detrick, MD (A.Y.M., V.G., A.K., D.S.H., G.U., J.R.).,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD (A.Y.M., V.G., A.K., D.S.H., G.U.)
| | - Robert Flaumenhaft
- Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (G.M.-S., S.P.G., R.F.)
| | - Jaques Reifman
- From the DoD Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, US Army Medical Research and Development Command, Ft. Detrick, MD (A.Y.M., V.G., A.K., D.S.H., G.U., J.R.)
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