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Shan H, Shi L, Liu S, Yuan Y, Li H, Chen S, Zhou X. A local-saturation-and-delay MRI method for evaluation of red blood cells aggregation in vivo for tumor-bearing or drug-used rats. Front Bioeng Biotechnol 2023; 11:1111840. [PMID: 36733963 PMCID: PMC9887193 DOI: 10.3389/fbioe.2023.1111840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 01/06/2023] [Indexed: 01/18/2023] Open
Abstract
Hyperviscosity syndrome (HVS) is a combination of clinical signs and symptoms related to increased blood viscosity. HVS can increase the thrombotic risk by causing a major disturbance to the blood flow, which is usually found in the advanced stages of the tumor. Moreover, some of the drugs used in chemotherapy, such as 5-fluorouracil and erythropoietin, are also capable of causing HVS through their respective pathways. Clinically, the viscosity of a patient's blood sample is measured by a rotary rheometer to estimate the risk of hyperviscosity syndrome. However, the measurement of blood viscosity in vitro is easily affected by storage time, storage environment, and anticoagulants. In addition, the fluid conditions in the rheometer are quite different from those in natural blood vessels, making this method inappropriate for evaluating blood viscosity and its effects in vivo under physiological condition. Herein, we presented a novel magnetic resonance imaging method called local-saturation-and-delay imaging (LSDI). The radial distributions of flow velocity measured by LSDI are consistent with the Ultrasonic (US) method (Spearman correlation coefficient r = 0.990). But the result of LSDI is more stable than US (p < 0.0001). With the LSDI method, we can directly measure the radial distribution of diastolic flow velocity, and further use these data to calculate the whole blood relative viscosity (WBRV) and erythrocyte aggregation trend. It was a strong correlation between the results measured by LSDI and rotary rheometer in the group of rats given erythropoietin. Furthermore, experimental results in glioma rats indicate that LSDI is equivalent to a rheometer as a method for predicting the risk of hyperviscosity syndrome. Therefore, LSDI, as a non-invasive method, can effectively follow the changes in WBRV in rats and avoid the effect of blood sampling during the experiment on the results. In conclusion, LSDI is expected to become a novel method for real-time in vivo recognition of the cancer progression and the influence of drugs on blood viscosity and RBC aggregation.
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Affiliation(s)
- Haiwei Shan
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Science—Wuhan National Laboratory for Optoelectronics, Wuhan, China,University of Chinese Academy of Sciences, Beijing, China
| | - Lei Shi
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Science—Wuhan National Laboratory for Optoelectronics, Wuhan, China,University of Chinese Academy of Sciences, Beijing, China
| | - Shuang Liu
- Department of Pediatrics, Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Yaping Yuan
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Science—Wuhan National Laboratory for Optoelectronics, Wuhan, China,University of Chinese Academy of Sciences, Beijing, China
| | - Hongchuang Li
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Science—Wuhan National Laboratory for Optoelectronics, Wuhan, China,University of Chinese Academy of Sciences, Beijing, China
| | - Shizhen Chen
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Science—Wuhan National Laboratory for Optoelectronics, Wuhan, China,University of Chinese Academy of Sciences, Beijing, China
| | - Xin Zhou
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Science—Wuhan National Laboratory for Optoelectronics, Wuhan, China,University of Chinese Academy of Sciences, Beijing, China,*Correspondence: Xin Zhou,
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Kawabe A, Yasu T, Morimoto T, Tokushige A, Momomura SI, Sakakura K, Node K, Inoue T, Ueda S. WBC count predicts heart failure in diabetes and coronary artery disease patients: a retrospective cohort study. ESC Heart Fail 2021; 8:3748-3759. [PMID: 34268904 PMCID: PMC8497382 DOI: 10.1002/ehf2.13513] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 05/14/2021] [Accepted: 07/04/2021] [Indexed: 01/04/2023] Open
Abstract
Aims White blood cell (WBC) count in healthy people is associated with the risk of coronary artery disease (CAD) and mortality. This study aimed to determine whether WBC count predicts heart failure (HF) requiring hospitalization as well as all‐cause death, acute myocardial infarction (AMI) and stroke in patients with Type 2 diabetes mellitus and established CAD. Methods We conducted this retrospective registry study that enrolled consecutive patients with Type 2 diabetes mellitus and CAD based on coronary arteriography records and medical charts at 70 teaching hospitals in Japan from 2005 to 2015. A total of 7608 participants (28.2% women, mean age 68 ± 10 years) were eligible. In the cohort, the median (interquartile range) and mean follow‐up durations were 39 (16.5–66.1 months) and 44.3 ± 32.7 months, respectively. The primary outcome was HF requiring hospitalization. The secondary outcomes were AMI, stroke, all‐cause death, 3‐point major adverse cardiovascular events (MACE) (AMI/stroke/death) and 4‐point MACE (AMI/stroke/death/HF requiring hospitalization). Outcomes were reported as cumulative incidences (proportion of patients experiencing an event) and incidence rates (events/100 person‐years). The primary and secondary outcomes were assessed using the Kaplan–Meier method and were compared using the log‐rank test stratified by the baseline WBC count. The association between the WBC count at baseline and each MACE was assessed using the Cox proportional hazard model and expressed as the hazard ratio (HR) and 95% confidence interval (CI) after adjusting for other well‐known risk factors for MACE. Results During the follow‐up, 880 patients were hospitalized owing to HF. The WBC Quartile 4 (≥7700 cells/μL) had significantly lower HF event‐free survival rate (log‐rank test, P < 0.001). The HRs for HF events requiring hospitalization with each WBC quartile compared with the lowest in the first WBC quartile were 1 for Quartile 1 (WBC < 5300 cells/μL), 1.20 (95% CI, 0.96–1.5; P = 0.1) for Quartile 2 (5300 ≤ WBC < 6400), 1.34 (95% CI, 1.08–1.67; P = 0.009) for Quartile 3 (6400 ≤ WBC < 7700) and 1.62 (95% CI, 1.31–2.00; P < 0.001) for Quartile 4 after adjusting for covariates. Similar findings were observed for the risk of AMI and death; however, no significant difference was found for stroke. WBC Quartile 4 patients had a significantly lower 3‐ or 4‐point MACE‐free survival rate (log‐rank test, P < 0.0001). Conclusions A higher WBC count is a predictor of hospitalization for HF, all‐cause death and AMI but not for stroke in patients with concurrent Type 2 diabetes mellitus and established CAD.
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Affiliation(s)
- Atsuhiko Kawabe
- Department of Cardiovascular Medicine and Nephrology, Dokkyo Medical University Nikko Medical Center, Nikko, Japan
| | - Takanori Yasu
- Department of Cardiovascular Medicine and Nephrology, Dokkyo Medical University Nikko Medical Center, Nikko, Japan
| | - Takeshi Morimoto
- Department of Clinical Epidemiology, Hyogo Medical College, Nishinomiya, Japan
| | - Akihiro Tokushige
- Department of Cardiovascular Medicine and Hypertension, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Shin-Ichi Momomura
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Kenichi Sakakura
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Koichi Node
- Department of Cardiology and Renal Medicine, Saga University School of Medicine, Saga, Japan
| | - Taku Inoue
- Department of Cardiology, Yuaikai Nanbu Hospital, Itoman, Okinawa, Japan
| | - Shinichiro Ueda
- Department of Clinical Pharmacology and Therapeutics, University of the Ryukyus, Nishihara, Okinawa, Japan
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- The CHD Collaborative Investigators are mentioned in the appendix
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Hinton W, Nemeth B, de Lusignan S, Field B, Feher MD, Munro N, Roberts LN, Arya R, Whyte MB. Effect of type 1 diabetes and type 2 diabetes on the risk of venous thromboembolism. Diabet Med 2021; 38:e14452. [PMID: 33165941 PMCID: PMC8247424 DOI: 10.1111/dme.14452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 12/12/2022]
Abstract
AIMS Whether diabetes increases venous thromboembolism (VTE) is unclear. Any greater risk may relate to insulin resistance, but many studies did not differentiate between type 1 diabetes and type 2 diabetes for VTE risk. METHODS Retrospective cohort study of the Royal College of General Practitioners Research and Surveillance Centre, comprising over 530 primary care practices. We determined whether type 1 diabetes and/or type 2 diabetes are independent risk factors for VTE. The index date was 1 January 2009, individuals were followed to 31 December 2018, or censoring. Cox proportional hazard regression analysis was used to investigate the risk of VTE in people with type 1 diabetes and type 2 diabetes relative to no diabetes. The primary outcome was occurrence of VTE. The model was adjusted for potential confounders for VTE. RESULTS There were 7086 people with type 1 diabetes and 95,566 with type 2 diabetes, diagnosed before 1 January 2009. The non-diabetes group consisted of 1,407,699 people. In the unadjusted analysis, there was no increased risk of VTE with type 1 diabetes (HR 1.00, 95% CI 0.76-1.33) but there was for type 2 diabetes (HR 2.70, 95% CI 2.57-2.84). In the fully adjusted model, VTE risk was increased in type 1 diabetes (HR 1.46, 95% CI 1.11-1.92), but not with type 2 diabetes (HR 1.06, 95% CI 0.98-1.14). CONCLUSIONS Type 1 diabetes was associated with a greater risk for VTE while type 2 diabetes was not. Further work is needed to determine the reason(s) for this.
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Affiliation(s)
- William Hinton
- Nuffield Department of Primary Care Health SciencesUniversity of OxfordOxfordUK
| | - Banne Nemeth
- Department of Clinical EpidemiologyLeiden UniversityLeidenThe Netherlands
| | - Simon de Lusignan
- Nuffield Department of Primary Care Health SciencesUniversity of OxfordOxfordUK
- Faculty of Health & Medical SciencesUniversity of SurreyGuildfordSurreyUK
- Royal College of General PractitionersRoyal College of General Practitioners (RCGP) Research and Surveillance Centre (RSCLondonUK
| | - Ben Field
- Faculty of Health & Medical SciencesUniversity of SurreyGuildfordSurreyUK
| | - Michael D. Feher
- Nuffield Department of Primary Care Health SciencesUniversity of OxfordOxfordUK
| | - Neil Munro
- Faculty of Health & Medical SciencesUniversity of SurreyGuildfordSurreyUK
| | - Lara N. Roberts
- King’s Thrombosis CentreDepartment of Haematological MedicineKing’s College NHS Foundation TrustLondonUK
| | - Roopen Arya
- King’s Thrombosis CentreDepartment of Haematological MedicineKing’s College NHS Foundation TrustLondonUK
| | - Martin B. Whyte
- Faculty of Health & Medical SciencesUniversity of SurreyGuildfordSurreyUK
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Moreno R, Díez JL, Diarte JA, Salinas P, de la Torre Hernández JM, Andres-Cordón JF, Trillo R, Briales JA, Amat-Santos I, Romaguera R, Díaz JF, Vaquerizo B, Ojeda S, Cruz-González I, Morena-Salas D, Pérez de Prado A, Sarnago F, Portero P, Gutierrez-Barrios A, Alfonso F, Bosch E, Pinar E, Ruiz-Arroyo JR, Ruiz-Quevedo V, Jiménez-Mazuecos J, Lozano F, Rumoroso JR, Novo E, Irazusta FJ, García Del Blanco B, Moreu J, Ballesteros-Pradas SM, Frutos A, Villa M, Alegría-Barrero E, Lázaro R, Paredes E. Impact of diabetes in patients waiting for invasive cardiac procedures during COVID-19 pandemic. Cardiovasc Diabetol 2021; 20:69. [PMID: 33757510 PMCID: PMC7986134 DOI: 10.1186/s12933-021-01261-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 03/13/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND During COVID-19 pandemic, elective invasive cardiac procedures (ICP) have been frequently cancelled or postponed. Consequences may be more evident in patients with diabetes. OBJECTIVES The objective was to identify the peculiarities of patients with DM among those in whom ICP were cancelled or postponed due to the COVID-19 pandemic, as well as to identify subgroups in which the influence of DM has higher impact on the clinical outcome. METHODS We included 2,158 patients in whom an elective ICP was cancelled or postponed during COVID-19 pandemic in 37 hospitals in Spain. Among them, 700 (32.4%) were diabetics. Patients with and without diabetes were compared. RESULTS Patients with diabetes were older and had a higher prevalence of other cardiovascular risk factors, previous cardiovascular history and co-morbidities. Diabetics had a higher mortality (3.0% vs. 1.0%; p = 0.001) and cardiovascular mortality (1.9% vs. 0.4%; p = 0.001). Differences were especially important in patients with valvular heart disease (mortality 6.9% vs 1.7% [p < 0.001] and cardiovascular mortality 4.9% vs 0.9% [p = 0.002] in patients with and without diabetes, respectively). In the multivariable analysis, diabetes remained as an independent risk factor both for overall and cardiovascular mortality. No significant interaction was found with other clinical variables. CONCLUSION Among patients in whom an elective invasive cardiac procedure is cancelled or postponed during COVID-19 pandemic, mortality and cardiovascular mortality is higher in patients with diabetes, irrespectively on other clinical conditions. These procedures should not be cancelled in patients with diabetes.
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Affiliation(s)
- Raúl Moreno
- University Hospital La Paz, idiPAZ, Paseo La Castellana 261, 28046, Madrid, Spain.
| | | | | | | | | | | | - Ramiro Trillo
- Hospital Clínico Universitario, Santiago de Compostela, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Eduard Bosch
- Corporació Sanitaria Parc Tauli, Sabadell, Spain
| | | | | | | | | | | | | | | | | | | | - José Moreu
- Hospital Virgen de La Salud, Toledo, Spain
| | | | | | | | - Eduardo Alegría-Barrero
- Hospital Universitario de Torrejón, Universidad Francisco Vitoria, Torrejón de Ardoz, Spain
- Hospital Ruber Internacional, Madrid, Spain
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Sobczak AIS, Stewart AJ. Coagulatory Defects in Type-1 and Type-2 Diabetes. Int J Mol Sci 2019; 20:E6345. [PMID: 31888259 PMCID: PMC6940903 DOI: 10.3390/ijms20246345] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/06/2019] [Accepted: 12/12/2019] [Indexed: 12/16/2022] Open
Abstract
Diabetes (both type-1 and type-2) affects millions of individuals worldwide. A major cause of death for individuals with diabetes is cardiovascular diseases, in part since both types of diabetes lead to physiological changes that affect haemostasis. Those changes include altered concentrations of coagulatory proteins, hyper-activation of platelets, changes in metal ion homeostasis, alterations in lipid metabolism (leading to lipotoxicity in the heart and atherosclerosis), the presence of pro-coagulatory microparticles and endothelial dysfunction. In this review, we explore the different mechanisms by which diabetes leads to an increased risk of developing coagulatory disorders and how this differs between type-1 and type-2 diabetes.
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Affiliation(s)
| | - Alan J. Stewart
- Medical and Biological Sciences Building, School of Medicine, University of St Andrews, St Andrews KY16 9TF, UK;
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Addai-Mensah O, Annani-Akollor ME, Nsafoah FO, Fondjo LA, Owiredu EW, Danquah KO, Duneeh RV, Amponsah FA. Effect of poor glycaemic control on plasma levels and activity of protein C, protein S, and antithrombin III in type 2 diabetes mellitus. PLoS One 2019; 14:e0223171. [PMID: 31560710 PMCID: PMC6764655 DOI: 10.1371/journal.pone.0223171] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 08/23/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) patients are predisposed to several diabetes-related complications. Dysregulation of the haemostatic mechanisms have been implicated. There are however no current studies assessing the levels and activity of protein C (PC), protein S (PS), and antithrombin III (AT III), which are essential in haemostatic regulation, in a single cohort of T2DM patients. This study evaluated the effect of poorly-managed T2DM on the levels and activity of PC, PS, and AT III. METHODS This cross-sectional study was conducted at the Diabetes Clinic, Cocoa Clinic in Kumasi, Ghana. A total of 242 T2DM patients, comprising 152 patients with poorly-managed diabetes and 90 well-managed diabetes patients, were recruited for the study. Fasting blood glucose, liver function tests and lipid profile were performed for each respondent. Glycated haemoglobin (HbA1c) was estimated by turbidimetric inhibition immunoassay. The levels and activity of PC, PS and AT III were measured by solid phase sandwich ELISA method. RESULTS There was a negative correlation between HbA1c and the levels and activity of PC, PS and AT III. The levels and activity of PC [(5.78 vs 4.64 μg/ml, p<0.0001) and (42.22 vs 36.21 U/ml, p = 0.01) respectively], PS [(22.55 vs 20.29 μg/ml, p = 0.010) and (235.94 vs 211.67 U/ml, p<0.0001) respectively] and AT III [(16.28 vs 14.41μg/ml, p<0.0001) and (176.01 vs 160.09 U/ml, p = 0.03) respectively] were significantly increased in patients with well-managed T2DM compared to the poorly-managed diabetes patients. Likewise, the levels and activity of PC, PS, and AT III was higher among T2DM patients using statins than patients who were statin-naïve. Among patients with well-managed T2DM, those who were on statins had significantly higher levels and activities of PC, PS, and AT III compared to well-managed T2DM patients not on statins. However, there no statistically significant differences between the level and activity of PC, PS, and AT III among poorly-managed T2DM patients with respect to statin status. CONCLUSION Poorly-managed type 2 diabetes mellitus is associated with reduced levels and activity of PC, PS and AT III compared to well-managed T2DM. Though use of statins may improve the levels and activity of the PC, PS and AT III in T2DM, their effect is limited in the presence of poorly-controlled T2DM. Proper management of diabetes is essential to reduce the likelihood of thrombotic events among T2DM patients.
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Affiliation(s)
- Otchere Addai-Mensah
- Department of Medical Diagnostics, Faculty of Allied Health Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- * E-mail: ,
| | - Max Efui Annani-Akollor
- Department of Molecular Medicine, School of Medical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Frederick Obeng Nsafoah
- Department of Medical Diagnostics, Faculty of Allied Health Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Linda Ahenkorah Fondjo
- Department of Molecular Medicine, School of Medical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Eddie-Williams Owiredu
- Department of Molecular Medicine, School of Medical Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Kwabena Owusu Danquah
- Department of Medical Diagnostics, Faculty of Allied Health Sciences, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Clinically feasible method for assessing leukocyte rheology in whole blood. Heart Vessels 2019; 35:268-277. [PMID: 31444563 PMCID: PMC6981318 DOI: 10.1007/s00380-019-01486-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 08/16/2019] [Indexed: 11/23/2022]
Abstract
This study reports a novel method for assessment of leukocyte rheological activation with a new designed microchannel array chip to mimic the human microvascular network for microchannel array flow analysis (MCFAN). Study subjects were 79 healthy volunteers and 42 patients with type 2 diabetes mellitus (DM) and 36 patients with acute coronary syndrome (ACS). Using the anticoagulants heparin and ethylene-diamine-tetraacetic acid (EDTA)-2Na which inhibits platelets and leukocytes by chelating Ca2+, we were able to quantify leukocyte rheological activation by the subtraction of passage time of blood treated with both heparin and EDTA-2Na from that of blood treated with heparin only. We confirmed that passage times of whole blood with heparin + EDTA-2Na were always shorter than those of whole blood with only heparin in healthy subjects and patients with DM or ACS under suction pressures of − 30 cmH2O. There was a significant correlation between delta whole blood passage time {(heparin tube) − (EDTA-2Na + heparin)} and serum levels of myeloperoxidase and adhesive leukocyte number, respectively, even in blood from patients with DM or ACS, who suffered from inflammation. In conclusion we have developed a clinically feasible method for assessing leukocyte rheological activation in whole blood in ex vivo.
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Gyawali P, Ziegler D, Cailhier JF, Denault A, Cloutier G. Quantitative Measurement of Erythrocyte Aggregation as a Systemic Inflammatory Marker by Ultrasound Imaging: A Systematic Review. ULTRASOUND IN MEDICINE & BIOLOGY 2018; 44:1303-1317. [PMID: 29661483 DOI: 10.1016/j.ultrasmedbio.2018.02.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 02/21/2018] [Accepted: 02/28/2018] [Indexed: 06/08/2023]
Abstract
This systematic review is aimed at answering two questions: (i) Is erythrocyte aggregation a useful biomarker in assessing systemic inflammation? (ii) Does quantitative ultrasound imaging provide the non-invasive option to measure erythrocyte aggregation in real time? The search was executed through bibliographic electronic databases CINAHL, EMB Review, EMBASE, MEDLINE, PubMed and the grey literature. The majority of studies correlated elevated erythrocyte aggregation with inflammatory blood markers for several pathologic states. Some studies used "erythrocyte aggregation" as an established marker of systemic inflammation. There were limited but promising articles regarding the use of quantitative ultrasound spectroscopy to monitor erythrocyte aggregation. Similarly, there were limited studies that used other ultrasound techniques to measure systemic inflammation. The quantitative measurement of erythrocyte aggregation has the potential to be a routine clinical marker of inflammation as it can reflect the cumulative inflammatory dynamics in vivo, is relatively simple to measure, is cost-effective and has a rapid turnaround time. Technologies like quantitative ultrasound spectroscopy that can measure erythrocyte aggregation non-invasively and in real time may offer the advantage of continuous monitoring of the inflammation state and, thus, may help in rapid decision making in a critical care setup.
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Affiliation(s)
- Prajwal Gyawali
- Laboratory of Biorheology and Medical Ultrasonics, University of Montreal Hospital Research Center (CRCHUM), Montréal, Québec, Canada
| | - Daniela Ziegler
- Documentation Center, University of Montreal Hospital, Montréal, Québec, Canada
| | - Jean-François Cailhier
- University of Montreal Hospital Research Center (CRCHUM), Montréal, Québec, Canada; Department of Medicine, University of Montreal, Montréal, Québec, Canada
| | - André Denault
- University of Montreal Hospital, Montreal, Québec, Canada; Montreal Heart Institute, Montreal, Québec, Canada; Department of Anesthesiology, University of Montreal, Montréal, Québec, Canada
| | - Guy Cloutier
- Laboratory of Biorheology and Medical Ultrasonics, University of Montreal Hospital Research Center (CRCHUM), Montréal, Québec, Canada; Department of Radiology, Radio-Oncology and Nuclear Medicine, Montréal, Québec, Canada; Institute of Biomedical Engineering, University of Montreal, Montréal, Québec, Canada.
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Chengji W, Xianjin F. Treadmill exercise alleviates diabetic cardiomyopathy by suppressing plasminogen activator inhibitor expression and enhancing eNOS in streptozotocin-induced male diabetic rats. Endocr Connect 2018; 7:553-559. [PMID: 29555653 PMCID: PMC5887130 DOI: 10.1530/ec-18-0060] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 03/19/2018] [Indexed: 01/25/2023]
Abstract
OBJECTIVE To investigate the biological mechanism of the effect of different intensity exercises on diabetic cardiomyopathy. METHODS 87 raise specific pathogen SPF healthy 6-week-old male Sprague-Dawley rats, fed 6 weeks with high-fat diet for rats were used, and a diabetic model was established by intraperitoneal injection of streptozotocin - randomly selected 43 rats were divided into Diabetic control group (DCG, n = 10), Diabetic exercise group 1 (DEG1, n = 11), Diabetic exercise group 2 (DEG2, n = 11) and Diabetic exercise group 3 (DEG3, n = 11). The rats in DEG1 were forced to run on a motorized treadmill, the exercise load consisted of running at a speed of 10 m/min, the exercise load of the rats in DEG2 were running at a speed of 15 m/min, the exercise load of the rats in DEG3 were running at a speed of 20 m/min, for one hour once a day for 6 weeks. After 6 weeks of exercise intervention, glucose metabolism-related indexes in rats such as blood glucose (FBG), glycosylated serum protein (GSP) and insulin (FINS); cardiac fibrinolytic system parameters such as PAI-1 (plasminogen activator inhibitor 1), Von Willebrand factor (vWF), protein kinase C (PKC) and diacylglycerol (DAG); and serum level of NO, eNOS and T-NOS were measured. RESULT Compared with DCG, fasting blood glucose and GSP were decreased, while insulin sensitivity index and insulin level were increased in all rats of the three exercise groups. FBG decrease was statistically significant (P < 0.01), only GSP decrease was statistically significant (P < 0.05) in DEG1 and DEG2, PAI-1 in three exercise groups were significantly reduced (P < 0.05), plasma vWF levels in the three exercise groups were significantly lower than those in the DCG group (P < 0.01); PKC levels decreased dramatically in the three exercise groups and DAG levels decrease slightly (P < 0.05), but with no significant difference. Compared with DCG, the serum level of NO was significantly higher (P < 0.05), and eNOS level was significantly elevated (P < 0.05). T-NOS elevation was statistically significant in DEG1 (P < 0.05). CONCLUSIONS Low- and moderate-intensity exercise can better control blood glucose level in diabetic rats; myocardial PAI-1 in DEG1, DEG2 and DEG3 rats decreased significantly (P < 0.05), serum NO increased (P < 0.05) and eNOS increased (P < 0.05) significantly. Therefore, it is inferred that exercise improves the biological mechanism of diabetic cardiomyopathy by affecting the levels of PAI-1 and eNOS, and there is a dependence on intensity.
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Affiliation(s)
- Wang Chengji
- College of Physical EducationChaohu University, Anhui Province, China
| | - Fan Xianjin
- College of Physical EducationChaohu University, Anhui Province, China
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Wang R, Liu R, Zhao L, Xu D, Hu L. Influence of type 2 diabetes mellitus on Khorana venous thromboembolism risk in colorectal cancer patients. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2017; 109:503-509. [PMID: 28593781 DOI: 10.17235/reed.2017.4322/2016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
BACKGROUND Many studies have documented the association between venous thromboembolism (VTE) and colorectal cancer (CRC). The Khorana model is a VTE risk assessment model for predicting cancer-associated thrombosis. Type 2 diabetes (T2DM) has also been reported to increase the risk of VTE. PURPOSE The aim of this study was to investigate the influence of T2DM on Khorana VTE risk in CRC patients and to explore the relationship between Khorana VTE category and CRC clinicopathological factors. METHODS This analysis included 615 CRC patients (205 with T2DM). Fibrinogen and D-dimer levels were compared within each group. A comparison was made of the proportion of patients in different Khorana VTE risk categories in CRC patients with and without T2DM. The association between Khorana VTE risk category and clinicopathological factors among all the CRC patients was evaluated. RESULTS Fibrinogen levels of CRC patients with T2DM were significantly higher than those of non-diabetes patients (4.13 ± 1.06 vs 3.94 ± 0.98, p < 0.001). A higher proportion of CRC patients with T2DM were in the Khorana intermediate-to-high risk category (H = 4.749, p = 0.029). Female sex, diabetes, colon location (compared with rectum), larger tumor size, advanced pT stage and pN stage were correlated with the intermediate-to-high Khorana VTE risk category, with odd ratios (95% confidence intervals [CI]) of 1.537 (1.064-2.220), 1.499 (1.027-2.186), 2.313 (1.588-3.370), 2.284 (1.542-3.383), 4.429 (2.088-9.396) and 1.822 (1.230-2.698), respectively. CONCLUSION T2DM increases Khorana VTE risk in CRC patients. Female sex, diabetes, colon location, large tumor size and poor stage are associated with the intermediate-to-high Khorana VTE risk category.
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Affiliation(s)
- Ruyao Wang
- Graduate School, Tianjin Medical University, People's Republic of China
| | - Rui Liu
- Department of Clinical Laboratory, Tianjin Union Medical Center, People's Republic of China
| | - Lijie Zhao
- Department of Clinical Laboratory, Tianjin Union Medical Center, People's Republic of China
| | | | - Liling Hu
- Department of Clinical Laboratory, Tianjin Union Medical Center, People's Republic of China
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Gajos G, Konieczynska M, Zalewski J, Undas A. Low fasting glucose is associated with enhanced thrombin generation and unfavorable fibrin clot properties in type 2 diabetic patients with high cardiovascular risk. Cardiovasc Diabetol 2015; 14:44. [PMID: 25928628 PMCID: PMC4432887 DOI: 10.1186/s12933-015-0207-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 03/26/2015] [Indexed: 02/06/2023] Open
Abstract
Objective To investigate the effect of low blood glucose on thrombin generation and fibrin clot properties in type 2 diabetes (T2DM). Methods In 165 patients with T2DM and high cardiovascular risk, we measured ex vivo plasma fibrin clot permeation [Ks], turbidity and efficiency of fibrinolysis including clot lysis time [t50%], together with thrombin generation and platelet activation markers in relation to fasting blood glucose. Results As compared to patients in medium (4.5-6.0 mmol/l, n = 52) and higher (>6.0 mmol/l, n = 75) glucose group, subjects with low glycemia (<4.5 mmol/l, n = 38) had lower Ks by 11% (p < 0.001) and 8% (p = 0.01), respectively, prolonged t50% by 10% (p < 0.001) and 7% (p = 0.016), respectively, and higher peak thrombin generation by 21% and 16%, respectively (p < 0.001 for both). There were no significant differences in Ks and t50% between patients in medium and higher glucose group. In the whole group, a J-shape relationship was observed between glycemia and the following factors: peak thrombin generation, Ks and t50%. Only in patients with HbA1c < 6.0% (42 mmol/mol) (n = 26) fasting glucose positively correlated with Ks (r = 0.53, P = 0.006) and inversely with t50% (r = −0.46, P = 0.02). By multiple regression analysis, after adjustment for age, fibrinogen, HbA1c, insulin treatment and T2DM duration, fasting glycemia was the independent predictor of Ks (F = 6.6, df = 2, P = 0.002), t50% (F = 8.0, df = 2, P < 0.001) and peak thrombin generation (F = 13.5, df = 2, P < 0.0001). Conclusions In T2DM patients fasting glycemia <4.5 mmol/l is associated with enhanced thrombin formation and formation of denser fibrin clots displaying lower lysability, especially when strict glycemia control was achieved (HbA1c<6.0%).
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Affiliation(s)
- Grzegorz Gajos
- Department of Coronary Disease and Heart Failure, Institute of Cardiology, Jagiellonian University Medical College, 80 Pradnicka str, 31-202, Krakow, Poland.
| | | | - Jaroslaw Zalewski
- Department of Coronary Disease and Heart Failure, Institute of Cardiology, Jagiellonian University Medical College, 80 Pradnicka str, 31-202, Krakow, Poland.
| | - Anetta Undas
- Institute of Cardiology, Jagiellonian University Medical College, Krakow, Poland.
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Ohuchi H, Yasuda K, Ono S, Hayama Y, Negishi J, Noritake K, Mizuno M, Iwasa T, Miyazaki A, Yamada O. Low fasting plasma glucose level predicts morbidity and mortality in symptomatic adults with congenital heart disease. Int J Cardiol 2014; 174:306-12. [PMID: 24780541 DOI: 10.1016/j.ijcard.2014.04.070] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 02/09/2014] [Accepted: 04/04/2014] [Indexed: 11/26/2022]
Abstract
BACKGROUND Adults with complex congenital heart disease (ACHD) have a high prevalence of abnormal glucose regulation (AGR: impaired glucose tolerance and diabetes mellitus). However, the impact of AGR on the prognosis remains unclear. PURPOSE Our purpose was to clarify the prognostic value of AGR in ACHD. METHODS AND RESULTS We performed a 75 g oral glucose tolerance test in 438 consecutive patients with ACHD (age 26 ± 8 years), including 38 unrepaired, 148 Fontan, 252 biventricular, and 27 healthy subjects and investigated associations between AGR and clinical events that required hospitalization or caused deaths from all-causes. When compared with the healthy group, fasting blood glucose level (FPG, mg/dl) was lower in the unrepaired and Fontan subjects (p<0.05-0.01) and the prevalence of low FPG (≤ 80 mg/dl) was also higher in the unrepaired (58%), Fontan (47%), and biventricular group (33%) than in the healthy control (11%) (p<0.0001). Postprandial hyperglycemia (area under the curve of glucose: PG-AUC) was higher in all ACHD groups (p<0.0001 for all). New York Heart Association class and lower FPG independently predicted the hospitalization (FPG ≤ 84 mg/dl) and mortality (FPG ≤ 80 mg/dl) (p<0.05-0.0001), while the PG-AUC was not an independent predictor. When compared with the asymptomatic ACHD, symptomatic ACHD with lower FPG had high hazard ratios of 2.2 (95% confidence interval [CI]: 1.3-3.8, p<0.002) and 3.3 (95% CI: 1.2-11.9, p<0.03) for the hospitalizations and all-cause mortality, respectively. CONCLUSIONS Low FPG is not uncommon in ACHD and the low FPG predicts the morbidity and all-cause mortality in symptomatic ACHD.
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Affiliation(s)
- Hideo Ohuchi
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center, Osaka, Japan.
| | - Kenji Yasuda
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Shin Ono
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Yosuke Hayama
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Jun Negishi
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Kanae Noritake
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Masanori Mizuno
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Toru Iwasa
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Aya Miyazaki
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Osamu Yamada
- Department of Pediatric Cardiology and Adult Congenital Heart Disease, National Cerebral and Cardiovascular Center, Osaka, Japan
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Association of fibrinogen with severity of stable coronary artery disease in patients with type 2 diabetic mellitus. DISEASE MARKERS 2014; 2014:485687. [PMID: 24803720 PMCID: PMC3997864 DOI: 10.1155/2014/485687] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 03/04/2014] [Accepted: 03/04/2014] [Indexed: 11/24/2022]
Abstract
Background. Some studies have suggested a relation of plasma fibrinogen to the severity of coronary artery disease (CAD). However, whether plasma fibrinogen can predict the presence and severity of CAD in patients with diabetes mellitus has not been determined. Methods. A total of consecutive 373 diabetic patients with typical angina pectoris who received coronary angiography were enrolled and classified into three groups by tertiles of Gensini score (GS, low group <8; intermediate group 8~28; high group >28). The relationship between fibrinogen and GS was evaluated. Results. There were correlations of fibrinogen with hemoglobin A1c, C-reactive protein, and GS (r = 0.17, r = 0.52, and r = 0.21, resp.; all P < 0.001). Area under the receivers operating characteristic curve of fibrinogen was 0.62 (95% CI 0.56–0.68, P < 0.001) for predicting a high GS. Multivariate analysis suggested that plasma fibrinogen was an independent predictor of a high GS for diabetic patients (OR = 1.40, 95% CI 1.04–1.88, and P = 0.026) after adjusting for traditional risk factors of CAD. Conclusions. The present data indicated that plasma fibrinogen, a readily measurable systematic inflammatory marker, appeared to be an independent predictor for the severity of CAD in diabetic patients.
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Depletion of circulating blood NOS3 increases severity of myocardial infarction and left ventricular dysfunction. Basic Res Cardiol 2013; 109:398. [PMID: 24346018 PMCID: PMC3898535 DOI: 10.1007/s00395-013-0398-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 11/25/2013] [Accepted: 12/06/2013] [Indexed: 01/14/2023]
Abstract
Nitric oxide (NO) derived from endothelial NO synthase (NOS3) plays a central role in myocardial ischemia/reperfusion (I/R)-injury. Subsets of circulating blood cells, including red blood cells (RBCs), carry a NOS3 and contribute to blood pressure regulation and RBC nitrite/nitrate formation. We hypothesized that the circulating blood born NOS3 also modulates the severity of myocardial infarction in disease models. We cross-transplanted bone marrow in wild-type and NOS3−/− mice with wild-type mice, producing chimeras expressing NOS3 only in vascular endothelium (BC−/EC+) or in both blood cells and vascular endothelium (BC+/EC+). After 60-min closed-chest coronary occlusion followed by 24 h reperfusion, cardiac function, infarct size (IS), NOx levels, RBCs NO formation, RBC deformability, and vascular reactivity were assessed. At baseline, BC−/EC+ chimera had lower nitrite levels in blood plasma (BC−/EC+: 2.13 ± 0.27 μM vs. BC+/EC+ 3.17 ± 0.29 μM; *p < 0.05), reduced DAF FM associated fluorescence within RBCs (BC−/EC+: 538.4 ± 12.8 mean fluorescence intensity (MFI) vs. BC+/EC+: 619.6 ± 6.9 MFI; ***p < 0.001) and impaired erythrocyte deformability (BC−/EC+: 0.33 ± 0.01 elongation index (EI) vs. BC+/EC+: 0.36 ± 0.06 EI; *p < 0.05), while vascular reactivity remained unaffected. Area at risk did not differ, but infarct size was higher in BC−/EC+ (BC−/EC+: 26 ± 3 %; BC+/EC+: 14 ± 2 %; **p < 0.01), resulting in decreased ejection fraction (BC−/EC+ 46 ± 2 % vs. BC+/EC+: 52 ± 2 %; *p < 0.05) and increased end-systolic volume. Application of the NOS inhibitor S-ethylisothiourea hydrobromide was associated with larger infarct size in BC+/EC+, whereas infarct size in BC−/EC+ mice remained unaffected. Reduced infarct size, preserved cardiac function, NO levels in RBC and RBC deformability suggest a modulating role of circulating NOS3 in an acute model of myocardial I/R in chimeric mice.
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Chai Y, Gu B, Qiu JR, Yi HG, Zhu Q, Zhang L, Hu G. Effects of uncoupling protein 2 -866G/A polymorphism on platelet reactivity and prognosis in Chinese patients with type 2 diabetes and ischemic stroke. Int J Neurosci 2013; 123:752-8. [PMID: 23621569 DOI: 10.3109/00207454.2013.798733] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The purpose of this study was to assess the effects of -866G>A polymorphism of mitochondrial uncoupling protein 2 (UCP-2) on platelet reactivity and prognosis in patients with type 2 diabetes and ischemic stroke (IS). A total of 405 Chinese patients with type 2 diabetes and stroke were assessed in a 4-year follow-up case-control study. Patient response to antiplatelet therapy was measured with the Platelet Function Analyzer-100 by means of collagen/adenosine diphosphate (CADP) and collagen/epinephrine (CEPI) cartridges. The primary end point was a composite of stroke and TIA (transient ischemic attack), the secondary end point was death. The -866G>A polymorphism in UCP-2 was genotyped by TaqMan MGB probe method. The -866G>A SNP in UCP-2 was not significantly associated with recurrence of diabetic ischemical stroke (p = 0.57). A significant trend toward nonfull response to antiplatelet therapy was seen in patients carrying A allel in comparison with those carrying GG genotype, as shown by the CADP and CEPI tests (p < 0.0001). Our 4-year follow-up study shows no association between -866G>A variant of UCP-2 in type 2 diabetes and the risk of developing stroke. But in conclusion, the A allel is associated with clopidogrel resistance.
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Affiliation(s)
- Yi Chai
- 1Department of Anatomy Histology and Pharmacology, State Key Laboratory of Pharmaceutical Biotechnology, Laboratory of Neuropharmacology, School of Life Sciences, Nanjing University , Nanjing , China
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Martini J, Maisch S, Pilshofer L, Streif W, Martini W, Fries D. Fibrinogen concentrate in dilutional coagulopathy: a dose study in pigs. Transfusion 2013; 54:149-57. [DOI: 10.1111/trf.12241] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 03/13/2013] [Accepted: 03/14/2013] [Indexed: 02/01/2023]
Affiliation(s)
- Judith Martini
- Clinical Department of Anesthesiology and General Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Clinical Department of General and Surgical Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Department of Paediatrics; Medical University Innsbruck; Innsbruck Austria
- US Army Institute of Surgical Research; Fort Sam Houston Texas
| | - Sonja Maisch
- Clinical Department of Anesthesiology and General Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Clinical Department of General and Surgical Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Department of Paediatrics; Medical University Innsbruck; Innsbruck Austria
- US Army Institute of Surgical Research; Fort Sam Houston Texas
| | - Lisa Pilshofer
- Clinical Department of Anesthesiology and General Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Clinical Department of General and Surgical Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Department of Paediatrics; Medical University Innsbruck; Innsbruck Austria
- US Army Institute of Surgical Research; Fort Sam Houston Texas
| | - Werner Streif
- Clinical Department of Anesthesiology and General Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Clinical Department of General and Surgical Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Department of Paediatrics; Medical University Innsbruck; Innsbruck Austria
- US Army Institute of Surgical Research; Fort Sam Houston Texas
| | - Wenjun Martini
- Clinical Department of Anesthesiology and General Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Clinical Department of General and Surgical Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Department of Paediatrics; Medical University Innsbruck; Innsbruck Austria
- US Army Institute of Surgical Research; Fort Sam Houston Texas
| | - Dietmar Fries
- Clinical Department of Anesthesiology and General Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Clinical Department of General and Surgical Intensive Care Medicine; Medical University Innsbruck; Innsbruck Austria
- Department of Paediatrics; Medical University Innsbruck; Innsbruck Austria
- US Army Institute of Surgical Research; Fort Sam Houston Texas
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Abstract
Elevated blood viscosity is an integral component of vascular shear stress that contributes to the site specificity of atherogenesis, rapid growth of atherosclerotic lesions, and increases their propensity to rupture. Ex vivo measurements of whole blood viscosity (WBV) is a predictor of cardiovascular events in apparently healthy individuals and studies of cardiovascular disease patients. The association of an elevated WBV and incident cardiovascular events remains significant in multivariate models that adjust for major cardiovascular risk factors. These prospective data suggest that measurement of WBV may be valuable as part of routine cardiovascular profiling, thereby potentially useful data for risk stratification and therapeutic interventions. The recent development of a high throughput blood viscometer, which is capable of rapidly performing blood viscosity measurements across 10,000 shear rates using a single blood sample, enables the assessment of blood flow characteristics in different regions of the circulatory system and opens new opportunities for detecting and monitoring cardiovascular diseases.
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Hernestål-Boman J, Norberg M, Jansson JH, Eliasson M, Eriksson JW, Lindahl B, Johansson L. Signs of dysregulated fibrinolysis precede the development of type 2 diabetes mellitus in a population-based study. Cardiovasc Diabetol 2012; 11:152. [PMID: 23249721 PMCID: PMC3538597 DOI: 10.1186/1475-2840-11-152] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 12/07/2012] [Indexed: 02/04/2023] Open
Abstract
Background Diabetic patients experience stimulated coagulation and dysfibrinolysis, which is associated with an increased risk of cardiovascular events. This imbalance may precede the manifest diagnosis. We investigated whether elevated antigen levels of tissue plasminogen activator (tPA), plasminogen activator inhibitor-1 (PAI-1), the tPA/PAI-1 complex, or von Willebrand Factor (VWF) precede type 2 diabetes mellitus (T2DM) diagnosis, and whether this elevation occurs before increased fasting plasma glucose (FPG) or 2-hour plasma glucose (2hPG) in individuals who later develop T2DM. Methods We conducted a prospective incident case-referent study within the Västerbotten Intervention Programme. Cardiovascular risk factor data as well as FPG and 2hPG and blood samples for future research were collected at a baseline health examination between 1989 and 2000, (n= 28 736). During follow-up in January 2001, 157 cases had developed T2DM. Referents without T2DM were matched for sex, age, and year of participation (n=277). Subgroup analysis was performed for cases with normal baseline glucose levels (FPG <6.1 mmol/L and 2hPG < 8.9 mmol/L) and cases with elevated levels (FPG 6.1-6.9 mmol/L and/or 2hPG 8.9-12.1 mmol/L). Results After adjusting for BMI, family history of diabetes, physical activity, smoking, systolic blood pressure and levels of C-reactive protein and triglycerides, independent associations were found between incident T2DM and elevated levels of tPA (OR=1.54, 95% CI 1.06-2.23), PAI-1 (OR=1.61, 95% CI 1.14-2.28), and tPA/PAI-1 complex (OR=2.45, 95% CI 1.56-3.84). In participants with normal glucose levels, PAI-1 (OR=2.06, 95% CI 1.10 - 3.86) exhibited an independent relationship with incident T2DM after the adjustments. Conclusions Elevated levels of fibrinolytic variables precede the manifestation of T2DM after adjusting for metabolic and cardiovascular risk factors and can be detected several years before changes in glucose tolerance.
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Cakir I, Tanriverdi F, Karaca Z, Kaynar L, Eser B, Unluhizarci K, Kelestimur F. Evaluation of coagulation and fibrinolytic parameters in adult onset GH deficiency and the effects of GH replacement therapy: a placebo controlled study. Growth Horm IGF Res 2012; 22:17-21. [PMID: 22226996 DOI: 10.1016/j.ghir.2011.12.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Revised: 12/01/2011] [Accepted: 12/09/2011] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Increased cardiovascular mortality/morbidity observed in patients with hypopituitarism is ascribed to growth hormone deficiency (GHD) because of its unfavorable cardiovascular risk profile. Abnormalities in the coagulation system may also contribute to increased cardiovascular morbidity/mortality. To get a better insight into the role of hemostasis in GHD we assessed several hemostatic markers at baseline and after 6 months of GH replacement therapy (GHRT). DESIGN-PATIENTS: Nineteen patients with adult onset GHD were enrolled (twelve patients into the treatment and seven patients into the placebo group) into the study. Platelet count, collagen/epinephrine closure time, collagen/ADP closure time, fibrinogen, prothrombin time (PT), activated partial thromboplastin time (aPTT), antithrombin III (AT III), protein C activity, protein S activity, lupus anticoagulant, antiphospholipid antibody immunoglobulin M, and antiphospholipid antibody immunoglobulin G were measured at baseline and 6 months after treatment. RESULTS The investigated parameters in the groups were similar at baseline except for low protein S (PS) activity. Protein S deficiency was observed in three of the patients in the GH treatment group at baseline, however the PS activity values normalized following GHRT. AT III and protein C activities decreased when compared to baseline values in the treatment group but not in the placebo group. CONCLUSIONS We observed protein S deficiency more frequent than seen in the general population and normalization of protein S activity and decreases, in other natural anticoagulants following GHRT. Further studies are required to understand the impact of these changes in cardiovascular morbidity and mortality in this patient population.
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Affiliation(s)
- Ilkay Cakir
- Erciyes University Medical School Department of Endocrinology, Turkey
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Keymel S, Heinen Y, Balzer J, Rassaf T, Kelm M, Lauer T, Heiss C. Characterization of macro-and microvascular function and structure in patients with type 2 diabetes mellitus. AMERICAN JOURNAL OF CARDIOVASCULAR DISEASE 2011; 1:68-75. [PMID: 22254187 PMCID: PMC3253507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/09/2011] [Accepted: 05/13/2011] [Indexed: 05/31/2023]
Abstract
OBJECTIVE Diabetes mellitus (DM) leads to accelerated progression of arteriosclerosis with an increased risk of coronary events in comparison to non-diabetic patients with coronary artery disease (CAD). The precise and early detection of DM-induced vascular alterations is crucial to identify patients with high risk for cardiovascular complications. Thus, we aimed at simultaneously characterizing functional, physicomechanical, and structural vascular alterations in diabetic patients using a non-invasive approach. RESEARCH DESIGN AND METHODS In CAD patients with and without type 2 diabetes mellitus (n=50), we non-invasively measured flow-mediated dilation (FMD) of the brachial artery as a marker for endothelial function, fractional diameter changes (FDC) as a marker for physicomechanical properties, intima-media thickness (IMT) as a marker for structural properties, and forearm blood flow (FBF) as a marker for microvascular function. RESULTS DM was associated with reduced FMD (2.5±0.2 vs 4.8±0.4%; p≤0.001) indicating impaired macrovascular endothelial function. In parallel, reduced FDC (0.024±0.002 vs 0.034±0.004; p≤0.05) and increased IMT (0.38±0.01 vs 0.31±0.01mm; p≤0.001) indicated increased stiffness and enhanced structural alterations. Furthermore, reduced forearm blood flow during reactive hyperemia (10.7±1.0 vs. 15.3±1.4mL/min*100mL; p≤0.05) was found indicating microvascular dysfunction. Plasma glucose and HbA(1c) correlated with FMD (glucose: r=-0.32; HbA(1c): r=-0.45), IMT (glucose: r=0.54; HbA(1c): r=0.48) and FBF (glucose: r=-0.30) suggesting diabetes-specific effects on vascular properties. CONCLUSION In patients with CAD, DM leads to functional and structural vascular alterations of the peripheral vasculature which are determined by the control of the disease underlining the relevance of a strict control of the DM to prevent accelerated atherosclerosis.
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Affiliation(s)
- Stefanie Keymel
- University Duesseldorf, Medical Faculty, Department of Cardiology, Pulmonology, and Vascular Diseases, University Hospital Duesseldorf Germany
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Yan X, Sano M, Lu L, Wang W, Zhang Q, Zhang R, Wang L, Chen Q, Fukuda K, Shen W. Plasma concentrations of osteopontin, but not thrombin-cleaved osteopontin, are associated with the presence and severity of nephropathy and coronary artery disease in patients with type 2 diabetes mellitus. Cardiovasc Diabetol 2010; 9:70. [PMID: 21034455 PMCID: PMC2988001 DOI: 10.1186/1475-2840-9-70] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Accepted: 10/29/2010] [Indexed: 12/17/2022] Open
Abstract
Background The aim of the present cross-sectional study was to assess possible associations between osteopontin (OPN), and thrombin-cleaved (N-half) OPN, and nephropathy and coronary artery disease (CAD) in patients with type 2 diabetes mellitus (T2DM). Methods Plasma levels of OPN, N-half OPN, and high-sensitivity C-reactive protein (hsCRP) were determined in 301 diabetic patients with (n = 226) or without (n = 75) angiographically documented CAD (luminal diameter narrowing >50%), as well as in 75 non-diabetic controls with normal angiography. The estimated glomerular filtration rate (eGFR) was calculated in all patients. Results Plasma levels of OPN and hsCRP were significantly higher in patients with T2DM compared with controls. In addition, there was a higher occurrence of moderate renal insufficiency and lower eGFR in patients with T2DM (all P < 0.01). T2DM patients in whom OPN levels were greater than the median value had higher serum creatinine levels, a greater prevalence of mild or moderate renal insufficiency, a higher incidence of CAD, and lower eGFR (all P < 0.05) than T2DM patients in whom OPN levels were the same as or lower than the median value. However, there were no differences in these parameters when patients were stratified according to plasma N-half OPN levels. Furthermore, there was a significant correlation between OPN, but not N-half OPN, and the severity of nephropathy and CAD in diabetes. After adjustment for potential confounders and treatments, multiple linear regression analysis demonstrated an independent association between OPN, but not N-half OPN, and eGFR. Multivariate logistic regression revealed that higher OPN levels conferred a fourfold greater risk of renal insufficiency and CAD in patients with T2DM. Conclusions The results of the present study demonstrate that there is an independent association between plasma levels of OPN, but not N-half OPN, and the presence and severity of nephropathy and CAD in diabetes.
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Affiliation(s)
- Xiaoxiang Yan
- Department of Cardiology, Rui Jin Hospital, Jiaotong University School of Medicine, Shanghai, China
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Maple-Brown LJ, Cunningham J, Nandi N, Hodge A, O'Dea K. Fibrinogen and associated risk factors in a high-risk population: urban Indigenous Australians, the DRUID Study. Cardiovasc Diabetol 2010; 9:69. [PMID: 21029470 PMCID: PMC2988000 DOI: 10.1186/1475-2840-9-69] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Accepted: 10/29/2010] [Indexed: 11/26/2022] Open
Abstract
Background Epidemiological evidence suggests that fibrinogen and CRP are associated with coronary heart disease risk. High CRP in Indigenous Australians has been reported in previous studies including our 'Diabetes and Related diseases in Urban Indigenous population in Darwin region' (DRUID) Study. We studied levels of fibrinogen and its cross-sectional relationship with traditional and non-traditional cardiovascular risk factors in an urban Indigenous Australian cohort. Methods Fibrinogen data were available from 287 males and 628 females (aged ≥ 15 years) from the DRUID study. Analysis was performed for associations with the following risk factors: diabetes, HbA1c, age, BMI, waist circumference, waist-hip ratio, total cholesterol, triglyceride, HDL cholesterol, C-reactive protein, homocysteine, blood pressure, heart rate, urine ACR, smoking status, alcohol abstinence. Results Fibrinogen generally increased with age in both genders; levels by age group were higher than those previously reported in other populations, including Native Americans. Fibrinogen was higher in those with than without diabetes (4.24 vs 3.56 g/L, p < 0.001). After adjusting for age and sex, the following were significantly associated with fibrinogen: BMI, waist, waist-hip ratio, systolic blood pressure, heart rate, fasting triglycerides, HDL cholesterol, HbA1c, CRP, ACR and alcohol abstinence. On multivariate regression (age and sex-adjusted) CRP and HbA1c were significant independent predictors of fibrinogen, explaining 27% of its variance; CRP alone explained 25% of fibrinogen variance. On factor analysis, both CRP and fibrinogen clustered with obesity in women (this factor explained 20% of variance); but in men, CRP clustered with obesity (factor explained 18% of variance) whilst fibrinogen clustered with HbA1c and urine ACR (factor explained 13% of variance). Conclusions Fibrinogen is associated with traditional and non-traditional cardiovascular risk factors in this urban Indigenous cohort and may be a useful biomarker of CVD in this high-risk population. The apparent different associations of fibrinogen with cardiovascular disease risk markers in men and women should be explored further.
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Affiliation(s)
- Louise J Maple-Brown
- Menzies School of Health Research, Charles Darwin University, Darwin, Australia.
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Thorarinsdottir HR, Sigurbjornsson FT, Hreinsson K, Onundarson PT, Gudbjartsson T, Sigurdsson GH. Effects of fibrinogen concentrate administration during severe hemorrhage. Acta Anaesthesiol Scand 2010; 54:1077-82. [PMID: 20887409 DOI: 10.1111/j.1399-6576.2010.02289.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Fibrinogen concentrate has been shown to improve coagulation in dilutional coagulopathy in experimental studies, but clinical experience is still scarce. The aim of this study was to evaluate laboratory data and the clinical outcome of fibrinogen administration in patients suffering from severe hemorrhage. MATERIALS AND METHODS A retrospective study over a 3-year observation period of consecutive patients who received a single dose of fibrinogen concentrate but not recombinant factor VIIa as part of their treatment of severe hemorrhage, defined as >6 U of packed red blood cells (PRBCs). RESULTS Thirty-seven patients were included, most of them suffering from severe hemorrhage following open heart surgery (68%). After a median fibrinogen dose of 2 g (range 1-6 g), an absolute increase in the plasma fibrinogen concentration of 0.6 g/l was observed (P<0.001). The activated partial thromboplastin time (APTT) decreased significantly (P<0.001), from 52 to 43 s and the prothrombin time (PT) decreased from 20 to 17 s, respectively. The transfusion requirement for PRBCs decreased from 6 to 3 U (P<0.01) in the 24 h after fibrinogen administration, but fresh-frozen plasma and platelet concentrate transfusions did not change significantly. Eight patients (22%) died in intensive care unit and the pre-operative fibrinogen concentration was not significantly different in these patients. CONCLUSION Administration of fibrinogen for severe hemorrhage was associated with an increased fibrinogen concentration and a significant decrease in APTT, PT and the requirement for PRBCs.
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Affiliation(s)
- H R Thorarinsdottir
- Department of Anesthesia and Intensive Care, Landspitali-University Hospital, Reykjavik, Iceland
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Feuring M, Wehling M, Burkhardt H, Schultz A. Coagulation status in coronary artery disease patients with type II diabetes mellitus compared with non-diabetic coronary artery disease patients using the PFA-100® and ROTEM®. Platelets 2010; 21:616-22. [PMID: 20807172 DOI: 10.3109/09537104.2010.504868] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Previous investigations in patients with coronary artery disease (CAD) revealed differences in thromboelastographic parameters indicating different states of coagulability. The aim of the present study was to investigate the coagulation status of patients with documented CAD and type II diabetes mellitus (DM) and non-diabetic patients with coronary artery disease with the PFA-100® and the ROTEM®. No differences were found in platelet function as measured with collagen/epinephrine (263.6 ± 70.6 s vs. 254.6 ± 65.3 s) and collagen/ADP cartridges (105.3 ± 63.2 s vs. 90.6 ± 47.3 s) in CAD patients with DM and CAD patients without DM. Measured with the EXTEM reagent of the ROTEM®, mean maximum clot elasticity (MCE) in patients with CAD and DM (233.6 ± 86.9) was significantly longer than in CAD patients without DM (186.7 ± 54.5), (p = 0.03). A similar result was seen using the INTEM reagent; patients with CAD and DM (234.4 ± 83.9) showed a higher value for MCE than CAD patients without DM (190.8 ± 57.8) which was of borderline significance (p = 0.053). Moreover, a weak trend for higher maximum clot firmness (MCF) was seen in CAD patients with DM compared with CAD patients without DM with the EXTEM reagent (68.1 ± 7.5 vs. 63.6 ± 8.6, p = 0.08) and the INTEM reagent (68.4 ± 7.2 vs. 64.1 ± 8.2, p = 0.09). The ROTEM® analysis indicates increased coagulability in patients with coronary artery disease and diabetes mellitus compared to non-diabetic CAD patients. Moreover, the ROTEM® device seems to be an appropriate and easy-to-use tool to describe the coagulation status in these patients groups.
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Affiliation(s)
- M Feuring
- Institute of Experimental and Clinical Pharmacology and Toxicology, Medical Faculty Mannheim, University of Heidelberg, Germany
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Cardiovascular Risks of Anemia Correction with Erythrocyte Stimulating Agents: Should Blood Viscosity Be Monitored for Risk Assessment? Cardiovasc Drugs Ther 2010; 24:151-60. [DOI: 10.1007/s10557-010-6239-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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