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Guleken Z, Depciuch J, Ceylan Z, Jakubczyk P, Jakubczyk D, Nalçacı M, Aday A, Bayrak AG, Hindilerden İY, Hindilerden F. Raman spectroscopy-based biomarker screening by studying the fingerprint and lipid characteristics of Polycythemıa Vera cases blood serum. Photodiagnosis Photodyn Ther 2023; 42:103572. [PMID: 37060986 DOI: 10.1016/j.pdpdt.2023.103572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/10/2023] [Accepted: 04/12/2023] [Indexed: 04/17/2023]
Abstract
This study aimed to develop a novel approach for diagnosing Polycythemia Vera (PV), a stem cell-derived neoplasm of the myeloid lineage. The approach utilized Raman spectroscopy coupled with multivariate analysis to analyze blood serum samples collected from PV patients. The results showed that PV serum exhibited lower protein and lipid levels and structural changes in the functional groups that comprise proteins and lipids. The study also demonstrated differences in lipid biosynthesis and protein levels in PV serum. Using the Partial Least Square Discriminant Analysis (PLS-DA) model, Raman-based multivariate analysis achieved high accuracy rates of 96.49% and 93.04% in the training sets and 93.10% and 89.66% in the test sets for the 800-1800 cm-1 and 2700-3000 cm-1 ranges, respectively. The area under the curve (AUC) values of the test datasets were calculated as 0.92 and 0.89 in the 800-1800 cm-1 and 2700-3000 cm-1 spectral regions, respectively, demonstrating the effectiveness of the PLS-DA models for the diagnosis of PV. This study highlights the potential of Raman spectroscopy-based analysis in the early and accurate diagnosis of PV, enabling the application of effective treatment strategies.
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Affiliation(s)
- Zozan Guleken
- Department of Physiology, Gaziantep University of Science and Technology, Faculty of Medicine, Gaziantep, Turkey.
| | | | - Zeynep Ceylan
- Samsun University, Faculty of Engineering, Department of Industrial Engineering, Turkey
| | | | - Dorota Jakubczyk
- Faculty of Mathematics and Applied Physics, Rzeszow University of Technology, Powstancow Warszawy 12, PL-35959 Rzeszow, Poland
| | - Meliha Nalçacı
- Istanbul University, Faculty of Medicine, Department of Internal Medicine, Division of Medical Genetics
| | - Aynur Aday
- Istanbul University Istanbul Faculty of Medicine, Department of Internal Medicine, Division of Hematology
| | - Ayşe Gül Bayrak
- Istanbul University Istanbul Faculty of Medicine, Department of Internal Medicine, Division of Hematology
| | - İpek Yönal Hindilerden
- Istanbul University, Faculty of Medicine, Department of Internal Medicine, Division of Medical Genetics
| | - Fehmi Hindilerden
- Division of Hematology, Deapartment of Internal Medicine, Hamidiye School of Medicine, University of Health Sciences, Istanbul
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Brahmi N, Hamed H, Kallel C, Elleuch A, Ayadi FM, Allagui MS. Modulatory Effect of Chaetomorpha gracilis on Erythrocytes Functions and Metabolic Disorders in Mice Fed a High-cholesterol Diet. J Oleo Sci 2021; 70:837-848. [PMID: 34078760 DOI: 10.5650/jos.ess20104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The current study was carried out to estimate the protective effect of methanolic extract of Chaetomorpha gracilis (MECG) against High Cholesterol Diet (HCD) induced erythrocyte damage in mice. The results of the in vitro assay showed that MECG have higher antioxidant capacities in the DPPH, TAC, ABTS, NBT, NO. inhibition assays. The HPLC analysis confirmed that this potential antioxidant seems to be due to the active compounds, in particular polyphenols, flavonoids. HCD promoted oxidative stress with a rise the level of malonaldehyde (MDA), advanced oxidation protein product (AOPP) levels and a significant decrease of the Vitamin C content, as well the antioxidant enzyme activities such as superoxide dismutase and glutathione peroxidase. In addition, HCD treatment caused significant lipid profile disorders via increase the cholesterol, triglycerides and LDL levels and reduction HDL-Ch level. A statistically significant decrease of Mg2+ and Ca2+ ATPase activities accompanied with a severe damage in the erythrocytes structure and hematological parameters alterations were also noted in hypercholesterolemic mice. Pre-treatment with MECG significantly restored biochemical markers and pathological lesions. It can be suggest that supplementation of MECG displays high potential to quench free radicals and attenuates high cholesterol diet induced erythrocytes oxidative stress and related damages.
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Affiliation(s)
- Noura Brahmi
- Laboratory of Animal Physiology, Sfax Faculty of Sciences, University of Sfax
| | - Houda Hamed
- Laboratory of Animal Physiology, Sfax Faculty of Sciences, University of Sfax
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Papadopoulos C, Panopoulou M, Anagnostopoulos K, Tentes I. Immune and Metabolic Interactions of Human Erythrocytes: A Molecular Perspective. Endocr Metab Immune Disord Drug Targets 2020; 21:843-853. [PMID: 33148159 DOI: 10.2174/1871530320666201104115016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/15/2020] [Accepted: 09/24/2020] [Indexed: 11/22/2022]
Abstract
Apart from their main function as oxygen carriers in vertebrates, erythrocytes are also involved in immune regulation. By circulating throughout the body, the erythrocytes are exposed and interact with tissues that are damaged as a result of a disease. In this study, we summarize the literature regarding the contribution of erythrocytes to immune regulation and metabolism. Under the circumstances of a disease state, the erythrocytes may lose their antioxidant capacity and release Damage Associated Molecular Patterns, resulting in the regulation of innate and adaptive immunity. In addition, the erythrocytes scavenge and affect the levels of chemokines, circulating cell-free mtDNA, and C3b attached immune complexes. Furthermore, through surface molecules, erythrocytes control the function of T lymphocytes, macrophages, and dendritic cells. Through an array of enzymes, red blood cells contribute to the pool of blood's bioactive lipids. Finally, the erythrocytes contribute to reverse cholesterol transport through various mechanisms. Our study is highlighting overlooked molecular interactions between erythrocytes and immunity and metabolism, which could lead to the discovery of potent therapeutic targets for immunometabolic diseases.
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Affiliation(s)
| | - Maria Panopoulou
- Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - Ioannis Tentes
- Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
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Dayimu A, Qian W, Fan B, Wang C, Li J, Wang S, Ji X, Zhou G, Zhang T, Xue F. Trajectories of Haemoglobin and incident stroke risk: a longitudinal cohort study. BMC Public Health 2019; 19:1395. [PMID: 31660924 PMCID: PMC6819541 DOI: 10.1186/s12889-019-7752-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 10/03/2019] [Indexed: 12/27/2022] Open
Abstract
Background Studies have demonstrated that high or low haemoglobin increases the risk of stroke. Previous studies, however, performed only a limited number of haemoglobin measurements, while there are dynamic haemoglobin changes over the course of a lifetime. This longitudinal cohort study aimed to classify the long-term trajectory of haemoglobin and examine its association with stroke incidence. Methods The cohort consisted of 11,431 participants (6549 men) aged 20 to 50 years whose haemoglobin was repeatedly measured 3–9 times during 2004–2015. A latent class growth mixture model (LCGMM) was used to classify the long-term trajectory of haemoglobin concentrations, and hazard ratios (HRs) and 95% confidence intervals (95% CI) according to the Cox proportional hazard model were used to investigate the association of haemoglobin trajectory types with the risk of stroke. Results Three distinct trajectory types, high-stable (n = 5395), normal-stable (n = 5310), and decreasing (n = 726), were identified, with stroke incidence rates of 2.7, 1.9 and 3.2 per 1000 person-years, respectively. Compared to the normal-stable group, after adjusting for the baseline covariates, the decreasing group had a 2.94-fold (95% CI 1.22 to 7.06) increased risk of developing stroke. Strong evidence was observed in men, with an HR (95% CI) of 4.12 (1.50, 11.28), but not in women (HR = 1.66, 95% CI 0.34, 8.19). Individuals in the high-stable group had increased values of baseline covariates, but the adjusted HR (95% CI), at 1.23 (0.77, 1.97), was not significant for the study cohort or for men and women separately. Conclusions This study revealed that a decreasing haemoglobin trajectory was associated with an increased risk of stroke in men. These findings suggest that long-term decreasing haemoglobin levels might increase the risk of stroke.
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Affiliation(s)
- Alimu Dayimu
- Department of Biostatistics, School of Public Health, Shandong University, 44 Wenhuaxi Road, PO Box 100, Jinan, 250012, China
| | - Wendi Qian
- Cambridge Clinical Trials Unit, Translational Research, University of Cambridge, Cambridge, England
| | - Bingbing Fan
- Department of Biostatistics, School of Public Health, Shandong University, 44 Wenhuaxi Road, PO Box 100, Jinan, 250012, China
| | - Chunxia Wang
- Health Management Center, Affiliated Hospital of Jining Medical University, Jining, Shandong, China
| | - Jiangbing Li
- Department of Cardiology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Shukang Wang
- Department of Biostatistics, School of Public Health, Shandong University, 44 Wenhuaxi Road, PO Box 100, Jinan, 250012, China
| | - Xiaokang Ji
- Department of Biostatistics, School of Public Health, Shandong University, 44 Wenhuaxi Road, PO Box 100, Jinan, 250012, China
| | - Guangshuai Zhou
- Department of Biostatistics, School of Public Health, Shandong University, 44 Wenhuaxi Road, PO Box 100, Jinan, 250012, China
| | - Tao Zhang
- Department of Biostatistics, School of Public Health, Shandong University, 44 Wenhuaxi Road, PO Box 100, Jinan, 250012, China.
| | - Fuzhong Xue
- Department of Biostatistics, School of Public Health, Shandong University, 44 Wenhuaxi Road, PO Box 100, Jinan, 250012, China.
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Abstract
Cholesterol homeostasis is of central importance for life. Therefore, cells have developed a divergent set of pathways to meet their cholesterol needs. In this review, we focus on the direct transfer of cholesterol from lipoprotein particles to the cell membrane. More molecular details on the transfer of lipoprotein-derived lipids were gained by recent studies using phospholipid bilayers. While amphiphilic lipids are transferred right after contact of the lipoprotein particle with the membrane, the transfer of core lipids is restricted. Amphiphilic lipid transfer gains special importance in genetic diseases impairing lipoprotein metabolism like familial hypercholesterolemia. Taken together, these data indicate that there is a constant exchange of amphiphilic lipids between lipoprotein particles and the cell membrane.
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Kosmachevskaya OV, Nasybullina EI, Blindar VN, Topunov AF. Binding of Erythrocyte Hemoglobin to the Membrane to Realize Signal-Regulatory Function (Review). APPL BIOCHEM MICRO+ 2019. [DOI: 10.1134/s0003683819020091] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Miljkovic M, Kotur-Stevuljevic J, Stefanovic A, Zeljkovic A, Vekic J, Gojkovic T, Bogavac-Stanojevic N, Nikolic M, Simic-Ogrizovic S, Spasojevic-Kalimanovska V, Jelic-Ivanovic Z. Oxidative stress and hemoglobin-cholesterol adduct in renal patients with different LDL phenotypes. Int Urol Nephrol 2016; 48:1683-90. [PMID: 27412679 DOI: 10.1007/s11255-016-1358-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 06/28/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE Unfavorable lipid profile is a major risk factor for cardiovascular disease in renal pathology. In this study, we compared chronic renal patients and healthy controls with different LDL phenotypes (A or B) in respect of various biochemical parameters related to cardiovascular disease. METHODS Oxidative stress and anti-oxidative defense parameters [thiobarbituric acid-reacting substances (TBARS), total oxidative status (TOS), total anti-oxidative status (TAS), total protein sulfhydryl (-SH) groups], as well as red blood cell cholesterol distribution were assessed in 40 renal patients and 40 control subjects by standardized assays. LDL particle diameters were determined by polyacrylamide gradient gel electrophoresis. LDL particles are subdivided according to their size into large LDL A phenotype (diameter >25.5 nm) and small LDL B phenotype (diameter ≤25.5 nm). RESULTS Renal patients with LDL A phenotype had increased oxidative stress (TOS: p < 0.01, and TBARS: p < 0.001) and decreased total SH- groups (p < 0.001) compared to controls with the same LDL phenotype. A notable decrease in hemoglobin-cholesterol adduct was detected in patients with LDL A phenotype (p < 0.001) and LDL B phenotype (p < 0.05) compared with appropriate controls. LDL B phenotype was characterized with increased TBARS (p < 0.05) compared with LDL A phenotype in control group. CONCLUSION Increased oxidative stress, decreased anti-oxidative defense followed with unfavorable changes in hemoglobin-cholesterol binding capacity, could have important influence on cardiovascular disease risk in renal patients regardless of LDL phenotype.
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Affiliation(s)
- Milica Miljkovic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, P. Box 146, 11000, Belgrade, Serbia.
| | - Jelena Kotur-Stevuljevic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, P. Box 146, 11000, Belgrade, Serbia
| | - Aleksandra Stefanovic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, P. Box 146, 11000, Belgrade, Serbia
| | - Aleksandra Zeljkovic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, P. Box 146, 11000, Belgrade, Serbia
| | - Jelena Vekic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, P. Box 146, 11000, Belgrade, Serbia
| | - Tamara Gojkovic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, P. Box 146, 11000, Belgrade, Serbia
| | - Natasa Bogavac-Stanojevic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, P. Box 146, 11000, Belgrade, Serbia
| | - Milan Nikolic
- Department of Biochemistry, Faculty of Chemistry, University of Belgrade, Studentski trg 16, 11000, Belgrade, Serbia
| | - Sanja Simic-Ogrizovic
- Clinic of Nephrology, Clinical Center of Serbia, Pasterova 2, 11000, Belgrade, Serbia
| | - Vesna Spasojevic-Kalimanovska
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, P. Box 146, 11000, Belgrade, Serbia
| | - Zorana Jelic-Ivanovic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, P. Box 146, 11000, Belgrade, Serbia
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Impact of red blood cells count on the relationship between high density lipoproteins and the prevalence and extent of coronary artery disease: a single centre study [corrected]. J Thromb Thrombolysis 2016; 40:61-8. [PMID: 25680891 DOI: 10.1007/s11239-015-1174-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
We have hypothesized that high red blood cells (RBC) count can potentially play an atheroprotective role in patients with coronary atherosclerosis. We, therefore, have investigated the relationship between high density lipoproteins cholesterol (HDL-C) and RBC levels in patients undergoing coronary angiography. Coronary artery disease (CAD) is a major cause of mortality. Impaired lipid profile represents a major risk factor for atherosclerosis. High density lipoprotein (HDL) is a key factor in atherosclerosis disease development. RBC can mimic HDL's reverse cholesterol transportation with a potential atheroprotective role. Coronary angiography has been evaluated in 3,534 patients. Fasting samples were collected for haematology and lipids levels assessment. Coronary disease was defined for at least 1 vessel stenosis >50 %. Patients were divided according to HDL-C and RBC tertiles. Lower HDL-C was significantly associated to the prevalence of CAD (84.8 vs 78.5 vs 67.3 %, p ≤ 0.001; adjusted OR [95 % CI] = 1.55 [1.3-1.8], p < 0.001) and severe CAD (30 % vs 30 % vs 24.4 %, p = 0.002; adjusted OR [95 % CI] = 1.08 [1.01-1.16], p = 0.02), this relationship was maintained even dividing our population according to RBC tertiles (p < 0.001).In conclusion, HDL-C levels are directly related to RBC count and inversely to the prevalence and extent of coronary disease. Higher RBC levels can reduce the risk of CAD in patients with lower HDL-C levels, suggesting an important atheroprotective role.
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Rotimi SO, Ojo DA, Talabi OA, Ugbaja RN, Balogun EA, Ademuyiwa O. Amoxillin- and pefloxacin-induced cholesterogenesis and phospholipidosis in rat tissues. Lipids Health Dis 2015; 14:13. [PMID: 25879817 PMCID: PMC4339583 DOI: 10.1186/s12944-015-0011-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 02/07/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To investigate whether amoxillin and pefloxacin perturb lipid metabolism. METHODS Rats were treated with therapeutic doses of each antibiotic for 5 and 10 days respectively. Twenty four hours after the last antibiotic treatment and 5 days after antibiotic withdrawal, blood and other tissues (liver, kidney, brain, heart and spleen) were removed from the animals after an overnight fast and analysed for their lipid contents. RESULTS Both antibiotics produced various degrees of compartment-specific dyslipidemia in the animals. While plasma and erythrocyte dyslipidemia was characterised by up-regulation of the concentrations of the major lipids (cholesterol, triglycerides, phospholipids and free fatty acids), hepatic and renal dyslipidemia was characterised by cholesterogenesis and phospholipidosis. Splenic dyslipidemia was characterised by cholesterogenesis and decreased phospholipid levels. Cardiac and brain cholesterol contents were not affected by the antibiotics. A transient phospholipidosis was observed in the brain whereas cardiac phospholipids decreased significantly. Lipoprotein abnormalities were reflected as down-regulation of HDL cholesterol. Furthermore, the two antibiotics increased the activity of hepatic HMG-CoA reductase. Although erythrocyte phospholipidosis was resolved 5 days after withdrawing the antibiotics, dyslipidemia observed in other compartments was still not reversible. CONCLUSION Our findings suggest that induction of cholesterogenesis and phospholipidosis might represent additional adverse effects of amoxillin and pefloxacin.
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Affiliation(s)
- Solomon O Rotimi
- Department of Biological Sciences, Covenant University, Ota, Nigeria.
| | - David A Ojo
- Department of Microbiology, Federal University of Agriculture, Abeokuta, Nigeria.
| | - Olusola A Talabi
- Medical Centre, Federal University of Agriculture, Abeokuta, Nigeria.
| | - Regina N Ugbaja
- Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria.
| | - Elizabeth A Balogun
- Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria.
- Department of Biochemistry, University of Ilorin, Ilorin, Nigeria.
| | - Oladipo Ademuyiwa
- Department of Biochemistry, Federal University of Agriculture, Abeokuta, Nigeria.
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Othman RA, Myrie SB, Mymin D, Merkens LS, Roullet JB, Steiner RD, Jones PJ. Ezetimibe reduces plant sterol accumulation and favorably increases platelet count in sitosterolemia. J Pediatr 2015; 166:125-31. [PMID: 25444527 PMCID: PMC4274192 DOI: 10.1016/j.jpeds.2014.08.069] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 08/04/2014] [Accepted: 08/28/2014] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To assess if ezetimibe (EZE), a sterol-absorption inhibitor, improves platelet (PLT) count and size relative to its effect on plasma plant sterol (PS) in patients with sitosterolemia (STSL). STUDY DESIGN Patients with STSL (5 males, 3 females, 16-56 years of age) receiving EZE intervention as part of their routine care participated in this study. EZE was discontinued for 14 weeks (off) and then resumed for another 14 weeks (on). Hematology variables along with plasma and red blood cells (RBC) PS and total cholesterol (TC) levels were measured at the end of each phase. RESULTS EZE increased PLT count (23% ± 9%) and decreased mean PLT volume (MPV; 10% ± 3%, all P < .05). In patients off EZE, PLT counts inversely correlated (r = -0.96 and r = -0.91, all P < .01) with plasma and RBC PS to TC ratio (PS/TC), and MPV positively correlated (r = 0.91, P = .03 and r = 0.93, P = .02) with plasma and RBC PS/TC. EZE reduced plasma and RBC sitosterol (-35% ± 4% and -28% ± 3%), total PS (-37% ± 4% and -28% ± 3%, all P < .0001) levels, and PS/TC (-27% ± 4% and -28% ± 4%, P < .01). CONCLUSIONS EZE reduces plasma and RBC PS levels, while increasing PLT count and decreasing MPV, and thereby may reduce the risk for bleeding in STSL. Plasma PS levels and ABCG5/ABCG8 genes should be analyzed in patients with unexplained hematologic abnormalities.
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Affiliation(s)
- Rgia A. Othman
- Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada, R3T 6C5,Richardson Centre for Functional Foods and Nutraceuticals, University of Manitoba, Winnipeg, MB, Canada, R3T 6C5
| | - Semone B. Myrie
- Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada, R3T 6C5,Richardson Centre for Functional Foods and Nutraceuticals, University of Manitoba, Winnipeg, MB, Canada, R3T 6C5
| | - David Mymin
- Internal Medicine, University of Manitoba, Winnipeg, MB, Canada, R3T 6C5
| | - Louise S. Merkens
- Pediatrics, Institute on Development and Disability/Doernbecher Children’s Hospital, Oregon Health & Science University, 3181 SW Jackson Park Road, Portland, OR 97239
| | - Jean-Baptiste Roullet
- Pediatrics, Institute on Development and Disability/Doernbecher Children’s Hospital, Oregon Health & Science University, 3181 SW Jackson Park Road, Portland, OR 97239
| | - Robert D. Steiner
- Pediatrics, Institute on Development and Disability/Doernbecher Children’s Hospital, Oregon Health & Science University, 3181 SW Jackson Park Road, Portland, OR 97239,Molecular and Medical Genetics, Institute on Development and Disability/Doernbecher Children’s Hospital, Oregon Health & Science University, 3181 SW Jackson Park Road, Portland, OR 97239,Marshfield Clinic Research Foundation, Marshfield, WI and the University of Wisconsin, Madison, WI
| | - Peter J.H. Jones
- Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada, R3T 6C5,Richardson Centre for Functional Foods and Nutraceuticals, University of Manitoba, Winnipeg, MB, Canada, R3T 6C5
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Fujita H, Hamaki T, Handa N, Ohwada A, Tomiyama J, Nishimura S. Hypocholesterolemia in patients with polycythemia vera. J Clin Exp Hematop 2013; 52:85-9. [PMID: 23037623 DOI: 10.3960/jslrt.52.85] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Polycythemia vera (PV) is characterized by low serum total cholesterol despite its association with vascular events such as myocardial and cerebral infarction. Serum cholesterol level has not been used as a diagnostic criterion for PV since the 2008 revision of the WHO classification. Therefore, we revisited the relationship between serum lipid profile, including total cholesterol level, and erythrocytosis. The medical records of 34 erythrocytosis patients (hemoglobin : men, > 18.5 g/dL ; women, > 16.5 g/dL) collected between August 2005 and December 2011 were reviewed for age, gender, and lipid profiles. The diagnoses of PV and non-PV erythrocytosis were confirmed and the in vitro efflux of cholesterol into plasma in whole blood examined. The serum levels of total cholesterol, low-density-lipoprotein cholesterol (LDL-Ch), and apolipoproteins A1 and B were lower in PV than in non-PV patients. The in vitro release of cholesterol into the plasma was greater in PV patients than in non-PV and non-polycythemic subjects. Serum total cholesterol, LDL-Ch, and apolipoproteins A1 and B levels are lower in patients with PV than in those with non-PV erythrocytosis. The hypocholesterolemia associated with PV may be attributable to the sequestration of circulating cholesterol into the increased number of erythrocytes.
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Affiliation(s)
- Hiroshi Fujita
- Department of Transfusion Medicine, Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan.
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Hung KT, Berisha SZ, Ritchey BM, Santore J, Smith JD. Red blood cells play a role in reverse cholesterol transport. Arterioscler Thromb Vasc Biol 2012; 32:1460-5. [PMID: 22499994 PMCID: PMC3360517 DOI: 10.1161/atvbaha.112.248971] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Reverse cholesterol transport (RCT) involves the removal of cholesterol from peripheral tissue for excretion in the feces. Here, we determined whether red blood cells (RBCs) can contribute to RCT. METHODS AND RESULTS We performed a series of studies in apolipoprotein AI-deficient mice where the high-density lipoprotein-mediated pathway of RCT is greatly diminished. RBCs carried a higher fraction of whole blood cholesterol than plasma in apolipoprotein AI-deficient mice, and as least as much of the labeled cholesterol derived from injected foam cells appeared in RBCs compared with plasma. To determine whether RBCs mediate RCT to the fecal compartment, we measured RCT in anemic and control apolipoprotein AI-deficient mice and found that anemia decreased RCT to the feces by over 35% after correcting for fecal mass. Transfusion of [(3)H]cholesterol-labeled RBCs led to robust delivery of the labeled cholesterol to the feces in apolipoprotein AI-deficient hosts. In wild-type mice, the majority of the blood cholesterol mass, as well as [(3)H]cholesterol derived from the injected foam cells, was found in plasma, and anemia did not significantly alter RCT to the feces after correction for fecal mass. CONCLUSIONS The RBC cholesterol pool is dynamic and facilitates RCT of peripheral cholesterol to the feces, particularly in the low high-density lipoprotein state.
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Affiliation(s)
- Kimberly T Hung
- Cleveland Clinic Lerner College of Medicine, Cleveland Clinic, Cleveland, OH 44195, USA
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Su Y, Shao G, Gao L, Zhou L, Qin L, Qin W. RBC electrophoresis with discontinuous power supply - a newly established hemoglobin release test. Electrophoresis 2009; 30:3041-3043. [PMID: 19685469 DOI: 10.1002/elps.200900176] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this paper, we aimed to introduce a newly established red blood cells (RBCs) electrophoresis method hemoglobin release test (HRT) and tried to determine its significance. Human blood samples from beta-thalassemia patients and healthy controls were analyzed with HRT, which was carried out on starch-agarose mixed gel. First, the whole blood samples were electrophoresed for 2 h, then paused for 15 min and ran for 15 min by turns. This "pause-run-pause" experiment was performed for several turns and the total electrophoresis time lasted for about 6 h. The results showed that some other hemoglobin (Hb) components were released from the origin of each sample during the HRT, and the samples from beta-thalassemia patients released more Hb than the healthy controls. This finding demonstrates that Hb may exist differently associated in RBCs, and it may have an important theoretical and clinical significance in Hb and RBC research.
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Affiliation(s)
- Yan Su
- Laboratory of Hemoglobin, Baotou Medical College, Baotou, P. R. China
| | - Guo Shao
- Laboratory of Hemoglobin, Baotou Medical College, Baotou, P. R. China
| | - Lijun Gao
- Laboratory of Hemoglobin, Baotou Medical College, Baotou, P. R. China
| | - Lishe Zhou
- Laboratory of Hemoglobin, Baotou Medical College, Baotou, P. R. China
| | - Liangyi Qin
- Clinical laboratory of Nanhui Central Hospital, Shanghai, P. R. China
| | - Wenbin Qin
- Laboratory of Hemoglobin, Baotou Medical College, Baotou, P. R. China
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Dietary lipid intake influences the level of cholesterol bound to haemoglobin in human erythrocytes. Eur J Nutr 2008; 47:123-30. [PMID: 18414769 DOI: 10.1007/s00394-008-0705-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2007] [Accepted: 03/20/2008] [Indexed: 02/05/2023]
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Does cholesterol bound to haemoglobin affect the anti-oxidant enzyme defence system in human erythrocytes? JOURNAL OF THE SERBIAN CHEMICAL SOCIETY 2007. [DOI: 10.2298/jsc0704339n] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In a previous study, it was shown that the lipid fraction, which is occasionally observed in red blood cell hemolysates, represents cholesterol (Ch) associated with phospholipid firmly bound to haemoglobin (termed Hb-Ch). The current study was conducted to investigate whether Hb-Ch could affect the primary anti-oxidant enzyme defence system in human erythrocytes. Sixty healthy volunteers were used for the current study. Group 1 consisted of 28 subjects without or with a low level of Hb-Ch. Group 2 comprised 32 subjects with a considerably higher level of Hb-Ch. The activities of erythrocyte superoxide dismutase, catalase, glutathione peroxidase and glutathione reductase, as well as the content of methaemoglobin (metHb) were measured in both groups. The results indicated that the amount of Hb-Ch neither influenced the activities of the erythrocyte anti-oxidant enzymes nor altered the level of metHb. However, a higher amount of Hb-Ch changed the correlations in the part of the anti-oxidant defence system relating to glutathione, suggesting increased peroxidative pressure from plasma lipids. Group 2 also had significantly increased concentrations of total plasma Ch and triglycerides. Together, these facts are strong indications that the anti-oxidant defence system in human erythrocytes finely retunes its composition according to plasma oxidative demands. .
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Nikolić M, Stanić D, Baricević I, Jones DR, Nedić O, Niketić V. Efflux of cholesterol and phospholipids derived from the haemoglobin-lipid adduct in human red blood cells into plasma. Clin Biochem 2006; 40:305-9. [PMID: 17291471 DOI: 10.1016/j.clinbiochem.2006.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2006] [Revised: 10/17/2006] [Accepted: 11/05/2006] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The interior of red blood cells (RBCs) contains a variable amount of cholesterol and phospholipids bound to haemoglobin (Hb). This current study was devised to determine if this pool of lipids (termed Hb-Ch) was available for exchange with plasma lipoproteins. DESIGN AND METHODS We studied the in vitro efflux of lipids from human RBCs into fasting plasma in men with either low (control group) or high Hb-Ch (study group). RESULTS When plasma was incubated with a two-fold excess of autologous RBCs the plasma cholesterol level increased due to a decrease in the level of cholesterol from the RBC membrane (in the control group) and due to a decrease in the level of cholesterol both from the RBC membrane and the Hb-Ch fraction (in the study group). The loss of Hb-Ch-derived phospholipids during lipid efflux was roughly equal to that of Hb-Ch-derived cholesterol. The loss of RBC cholesterol into plasma high-density lipoproteins (HDL) was more pronounced in our study group and correlated with the loss of cholesterol from Hb-Ch. CONCLUSION The Hb-Ch adduct significantly contributes to the lipid efflux from RBCs into plasma. The majority of cholesterol released from Hb-Ch appears in the plasma HDL fraction suggesting that Hb-Ch may play a role in reverse cholesterol transport in vivo.
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Affiliation(s)
- Milan Nikolić
- Faculty of Chemistry, University of Belgrade, Studentski trg 16, P.O. Box 158, 11001 Belgrade, Serbia.
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Nikolic M, Vranic D, Spiric A, Batas V, Nikolic-Kokic A, Radetic P, Turubatovic L, Blagojevic DP, Jones DR, Niketic V, Spasic MB. Could cholesterol bound to haemoglobin be a missing link for the occasional inverse relationship between superoxide dismutase and glutathione peroxidase activities? Biochem Biophys Res Commun 2006; 348:265-70. [PMID: 16876118 DOI: 10.1016/j.bbrc.2006.06.199] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2006] [Accepted: 06/16/2006] [Indexed: 11/20/2022]
Abstract
The concept of an anti-oxidant defence system as a means to prevent oxidative cell damage implies balanced activities of anti-oxidant defence enzymes. As well as positive correlations between anti-oxidant enzyme activities in human erythrocytes, it has been observed that sometimes when glutathione peroxidase activity is increased, CuZn-superoxide dismutase activity is decreased. In our current study we have examined the plasma lipid profile and the anti-oxidant defence enzymes in erythrocytes from humans, pigs, and bulls. We found that a negative correlation existed between CuZn-superoxide dismutase and glutathione peroxidase activities in human erythrocytes when the concentrations of both plasma triglycerides and total cholesterol were high. This correlation was also found in pig erythrocytes, but not in bull erythrocytes. We propose that cholesterol could affect membrane lipid peroxidation and superoxide generation in erythrocytes via the recently found fraction of cholesterol bound to haemoglobin, termed haemoglobin-cholesterol.
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Affiliation(s)
- Milan Nikolic
- Department of Chemistry, University of Belgrade, Studentski trg 16, 11001 Belgrade, Serbia and Montenegro
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