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Das SS, Mahapatra SK. Consequence of Red Blood Cells Deformability on Heat Sink Effect of Blood in a Three-Dimensional Bifurcated Vessel. J Biomech Eng 2024; 146:091001. [PMID: 38477912 DOI: 10.1115/1.4065058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/11/2024] [Indexed: 03/14/2024]
Abstract
Several diseases like Sickle Cell Anemia, Thalassemia, Hereditary Spherocytosis, Malaria, and Micro-angiopathic Hemolytic Anemia can alter the normal shape of red blood cells (RBCs). The objective of this study is to gain insight into how a change in RBC deformability can affect blood heat transfer. The heat sink effect in a bifurcated vessel with two asymptotic cases (case 1: deformable and case 2: nondeformable RBCs) is being studied during hyperthermia treatment in a three-dimensional bifurcated vessel, whose wall is being subjected to constant heat flux boundary condition. Euler-Euler multiphase method along with the granular model and Kinetic theory is used to include the particle nature of RBCs during blood flow in the current model. To enhance the efficiency of the numerical model, user-defined functions (UDFs) are imported into the model from the C++ interface. The numerical model used is verified with the experimental results from (Carr and Tiruvaloor, 1989, "Enhancement of Heat Transfer in Red Cell Suspensions In Vitro Experiments," ASME J. Biomech. Eng., 111(2), pp. 152-156; Yeleswarapu et al. 1998, "The Flow of Blood in Tubes: Theory and Experiment," Mech. Res. Commun., 25(3), pp. 257-262). The results indicate that the deformability of RBCs can change both the flow dynamics and heat sink effect in a bifurcated vessel, which subsequently affects the efficacy and efficiency of the thermal ablation procedure. Both spatial and transient Nusselt numbers of blood flow with deformable RBCs are slightly higher compared to the one with nondeformable RBCs.
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Wang Y, Yang P, Yan Z, Liu Z, Ma Q, Zhang Z, Wang Y, Su Y. The Relationship between Erythrocytes and Diabetes Mellitus. J Diabetes Res 2021; 2021:6656062. [PMID: 33728350 PMCID: PMC7935596 DOI: 10.1155/2021/6656062] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 02/10/2021] [Accepted: 02/20/2021] [Indexed: 12/16/2022] Open
Abstract
High blood glucose level (hyperglycemia) is a leading indicator of diabetes mellitus (DM). Erythrocytes are the most abundant cells in the circulation and the first to perceive changes in plasma composition. Long-lasting hyperglycemia affects the structure and function of erythrocytes. The detection of erythrocyte-related indicators can provide a valuable reference for the prevention, diagnosis, and treatment of DM and its complications. This paper reviews the normal structure and function of erythrocytes, the changes in erythrocytes in patients with diabetes, and the role of erythrocytes in the development of diabetic complications to provide more indicators for the early prevention of DM complications and to monitor the therapeutic effect of DM.
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Affiliation(s)
- Yaqi Wang
- Department of Biochemistry and Molecular Biology, Baotou Medical College, Baotou, 014040 Inner Mongolia, China
| | - Peiyuan Yang
- Department of Biochemistry and Molecular Biology, Baotou Medical College, Baotou, 014040 Inner Mongolia, China
| | - Zhaoli Yan
- Department of Endocrinology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010050 Inner Mongolia, China
| | - Zhi Liu
- Department of Biochemistry and Molecular Biology, Baotou Medical College, Baotou, 014040 Inner Mongolia, China
| | - Qiang Ma
- Department of Biochemistry and Molecular Biology, Baotou Medical College, Baotou, 014040 Inner Mongolia, China
| | - Zehong Zhang
- Department of Biochemistry and Molecular Biology, Baotou Medical College, Baotou, 014040 Inner Mongolia, China
| | - Yunxia Wang
- Department of Biochemistry and Molecular Biology, Baotou Medical College, Baotou, 014040 Inner Mongolia, China
| | - Yan Su
- Department of Biochemistry and Molecular Biology, Baotou Medical College, Baotou, 014040 Inner Mongolia, China
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Menon N, Sparks J, Omoruyi FO. Oxidative Stress Parameters and Erythrocyte Membrane Adenosine Triphosphatase Activities in Streptozotocin-induced Diabetic Rats Administered Aqueous Preparation of Kalanchoe Pinnata Leaves. Pharmacognosy Res 2016; 8:85-8. [PMID: 27034597 PMCID: PMC4780143 DOI: 10.4103/0974-8490.172656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background: Diabetes mellitus is a chronic metabolic disease that according to the World Health Organization affects more than 382 million people. The rise in diabetes mellitus coupled with the lack of an effective treatment has led many to investigate medicinal plants to identify a viable alternative. Objective: To evaluate red blood cell (RBC) membrane adenosine triphosphatase (ATPase) activities and antioxidant levels in streptozotocin-induced diabetic rats administered aqueous preparation of Kalanchoe pinnata leaves. Materials and Methods: Diabetes mellitus was induced in rats by a single administration of streptozotocin (60 mg/kg). Diabetic rats were then treated with aqueous K. pinnata preparation (three mature leaves ~ 9.96 g/70 kg body weight or about 0.14 g/kg body weight/day) for 30 days. Serum glucose, RBC membrane ATPase activities, and antioxidant levels were determined. Results: We noted weight loss and reduced food consumption in the treated diabetic group. Serum glucose levels were reduced in the treated diabetic group compared to the other groups. Superoxide dismutase activity and glutathione levels were not significantly elevated in the treated group compared to the diabetic group. However, serum catalase activity was significantly (P < 0.05) increased in the treated diabetic group compared to the other groups. Serum thiobarbituric acid reactive substances were not significantly altered among the groups. There was a significant (P < 0.05) increase in Mg2+ ATPase activity and a nonsignificant increase in Na+/K+ ATPase activity in the RBC membrane of the treated diabetic group compared to the diabetic group. Conclusion: The consumption of aqueous preparation of K. pinnata may accrue benefits in the management of diabetes by lowering oxidative stress often associated with the disease and improving the availability of cellular magnesium through an increase in the magnesium ATPase pump in the RBC membrane for increased cellular metabolism of glucose through the glycolytic pathway. SUMMARY We noted weight loss and reduced food consumption in the diabetic rats treated with K. pinnata preparation Serum glucose levels were reduced in diabetic rats treated with K. pinnata preparation Serum catalase activity was significantly (P < 0.05) increased in diabetic rats treated with K. pinnata preparation We also noted a significant (P < 0.05) increase in Mg2+ ATPase activity in the RBC membranes of diabetic rats treated with K. pinnata preparation Overall, the consumption of aqueous preparation of K. pinnata lowered oxidative stress often associated with diabetes and improved availability of cellular magnesium through an increase in magnesium ATPase pump in the RBC membrane.
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Affiliation(s)
- Nikhil Menon
- Department of Life Sciences, Texas A&M University, Corpus Christi, Texas, USA
| | - Jean Sparks
- Department of Life Sciences, Texas A&M University, Corpus Christi, Texas, USA
| | - Felix O Omoruyi
- Department of Life Sciences, Texas A&M University, Corpus Christi, Texas, USA
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Peruzzu A, Solinas G, Asara Y, Forte G, Bocca B, Tolu F, Malaguarnera L, Montella A, Madeddu R. Association of trace elements with lipid profiles and glycaemic control in patients with type 1 diabetes mellitus in northern Sardinia, Italy: An observational study. CHEMOSPHERE 2015; 132:101-107. [PMID: 25828915 DOI: 10.1016/j.chemosphere.2015.02.052] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 02/17/2015] [Accepted: 02/24/2015] [Indexed: 06/04/2023]
Abstract
Sardinia is an Italian region with a high incidence of type 1 diabetes mellitus. This study aimed to determine the associations of trace elements with lipid profiles and glycaemic control in patients with T1DM. A total of 192 patients with T1DM who attended the Unit of Diabetology and Metabolic Diseases in Sassari, Italy, were enrolled. Trace elements zinc, copper, selenium, chromium, and iron were measured in whole blood by sector field inductively coupled plasma mass spectrometry. The correlations between metabolic variables and the levels of trace elements were determined. Zinc was positively correlated with total cholesterol (P=0.023), low-density lipoprotein (P=0.0015), and triglycerides (P=0.027). Iron as significantly correlated with TC (P=0.0189), LDL (P=0.0121), and high-density lipoprotein (HDL) (P=0.0466). In males, Cr was positively correlated with HDL (P=0.0079) and Se, in females was correlated with TG (P=0.0113). The mean fasting plasma glucose was166.2mgdL(-1). Chromium was correlated with fasting plasma glucose (P=0.0149), particularly in males (P=0.0038). Overall, 63.5% of the patients had moderate HbA1c (7-9%). Copper was significantly correlated with HbA1c% in males (P=0.0155). In conclusion, the results of this study indicate that trace elements show different associations with lipid levels and glycaemic control in T1DM. Zinc, Fe, and Se were associated with lipid levels whereas Cu and Cr were associated with HbA1c%.
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Affiliation(s)
- Angela Peruzzu
- University of Sassari, Department of Biomedical Sciences, Viale San Pietro 43B, 07100 Sassari, Italy.
| | - Giuliana Solinas
- University of Sassari, Department of Biomedical Sciences, Viale San Pietro 43B, 07100 Sassari, Italy.
| | - Yolande Asara
- University of Sassari, Department of Biomedical Sciences, Viale San Pietro 43B, 07100 Sassari, Italy.
| | - Giovanni Forte
- National Institute of Health, Department of Environment and Primary Prevention, viale Regina Elena 299, 00161 Rome, Italy.
| | - Beatrice Bocca
- National Institute of Health, Department of Environment and Primary Prevention, viale Regina Elena 299, 00161 Rome, Italy.
| | - Francesco Tolu
- University Hospital, Unit of Endocrinology, Viale San Pietro 43, 07100 Sassari, Italy.
| | - Lucia Malaguarnera
- University of Catania, Department of Biomedical Sciences, Via Androne 83, Catania, Italy.
| | - Andrea Montella
- University of Sassari, Department of Biomedical Sciences, Viale San Pietro 43B, 07100 Sassari, Italy.
| | - Roberto Madeddu
- University of Sassari, Department of Biomedical Sciences, Viale San Pietro 43B, 07100 Sassari, Italy; National Institute Biostructures and Biosystems (INBB), Viale Medaglie d'Oro 305, 00136 Rome, Italy.
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Cruz KJC, Oliveira ARSD, Marreiro DDN. Antioxidant role of zinc in diabetes mellitus. World J Diabetes 2015; 6:333-337. [PMID: 25789115 PMCID: PMC4360427 DOI: 10.4239/wjd.v6.i2.333] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 12/02/2014] [Accepted: 12/19/2014] [Indexed: 02/05/2023] Open
Abstract
Chronic hyperglycemia statue noticed in diabetes mellitus favors the manifestation of oxidative stress by increasing the production of reactive oxygen species and/or by reducing the antioxidant defense system activity. Zinc plays an important role in antioxidant defense in type 2 diabetic patients by notably acting as a cofactor of the superoxide dismutase enzyme, by modulating the glutathione metabolism and metallothionein expression, by competing with iron and copper in the cell membrane and by inhibiting nicotinamide adenine dinucleotide phosphate-oxidase enzyme. Zinc also improves the oxidative stress in these patients by reducing chronic hyperglycemia. It indeed promotes phosphorylation of insulin receptors by enhancing transport of glucose into cells. However, several studies reveal changes in zinc metabolism in individuals with type 2 diabetes mellitus and controversies remain regarding the effect of zinc supplementation in the improvement of oxidative stress in these patients. Faced with the serious challenge of the metabolic disorders related to oxidative stress in diabetes along with the importance of antioxidant nutrients in the control of this disease, new studies may contribute to improve our understanding of the role played by zinc against oxidative stress and its connection with type 2 diabetes mellitus prognosis. This could serve as a prelude to the development of prevention strategies and treatment of disorders associated with this chronic disease.
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Gyawali P, Richards RS, Uba Nwose E. Erythrocyte morphology in metabolic syndrome. Expert Rev Hematol 2014; 5:523-31. [DOI: 10.1586/ehm.12.47] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Lima VBDS, Sampaio FDA, Bezerra DLC, Moita Neto JM, Marreiro DDN. Parameters of glycemic control and their relationship with zinc concentrations in blood and with superoxide dismutase enzyme activity in type 2 diabetes patients. ACTA ACUST UNITED AC 2012; 55:701-7. [PMID: 22231973 DOI: 10.1590/s0004-27302011000900006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Accepted: 11/04/2011] [Indexed: 02/04/2023]
Abstract
OBJECTIVE This study assessed the relationship between the parameters of glycemic control, and zinc concentrations in blood and superoxide dismutase enzyme activity in type 2 diabetes patients. SUBJECTS AND METHODS Seventy-three individuals, aged between 25 and 59 years, were divided into the experimental group (type 2 diabetes patients, n = 36) and control group (n = 37). Plasma and erythrocyte zinc concentrations, superoxide dismutase activity, and parameters of glycemic control were analyzed. RESULTS Mean plasma zinc concentration was 74.1 ± 10.7 µg/dL and 68.8 ± 9.6 µg/dL, erythrocyte zinc concentration was 48.1 ± 9.5 µg/gHb and 41.2 ± 8.0 µg/gHb, and superoxide dismutase activity was 2248.9 ± 300.0 U/gHb and 2059.6 ± 285.4 U/gHb, in the experimental group and the control group, respectively (p < 0.05). CONCLUSION Type 2 diabetes patients showed a positive response to oxidative stress due to adequate zinc concentration in blood and increased activity of superoxide dismutase, and the enzyme was influenced by serum insulin.
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Ulas M, Cay M. 17β-Estradiol and vitamin E modulates oxidative stress-induced kidney toxicity in diabetic ovariectomized rat. Biol Trace Elem Res 2011; 144:821-31. [PMID: 21484408 DOI: 10.1007/s12011-011-9025-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Accepted: 03/07/2011] [Indexed: 12/12/2022]
Abstract
The aim of this study was to investigate the effects of vitamin E (alpha-tocopherol) and 17β-estradiol (E(2)) supplementation on malondialdehyde (MDA), glutathione (GSH), vitamin A, beta carotene, selenium-dependent glutathione peroxidase (GSH-Px), zinc-dependent superoxide dismutase (SOD), and copper/zinc-dependent catalase (CAT) values in the kidney of ovariectomized (OVX) diabetic rats. Forty-two female rats were randomly divided into seven equal groups as follows: group I, control; group II, OVX; group III, OVX+E(2); group IV, OVX+E(2)+alpha-tocopherol; group V, OVX+diabetic; group VI, OVX+diabetic+E(2); and group VII, OVX+diabetic+E(2)+alpha-tocopherol. E(2) (40 μg kg(-1)/day) and alpha-tocopherol (100 μg kg(-1)/day) were given. Bilateral ovariectomy was performed in all groups except group I. After 4 weeks, antioxidant and MDA levels in the kidney for all groups were analyzed. GSH-Px, CAT, SOD, GSH levels, vitamin A, and beta carotene levels were decreased in OVX group compared to those in the control group but MDA level was elevated via ovariectomy. However, E(2) and E(2)+alpha-tocopherol supplementations in OVX group was associated with an increase in the GSH-Px, GSH, CAT and Zn-SOD values, vitamin A, and beta carotene levels but a decrease in MDA levels in kidney. The MDA levels in the kidney of diabetic OVX rats were found higher than those in the control and OVX groups. However, GSH, GSH-Px, CAT, SOD, vitamin A, and beta carotene levels in kidney were lower in OVX diabetic rats. On the other hand, E(2) and E(2)+alpha-tocopherol supplementations to OVX diabetic rats have caused an increase in GSH-Px, CAT and SOD, GSH, vitamin A, and beta carotene levels but a decrease in MDA levels. In conclusion, the E(2) and E(2)+alpha-tocopherol supplementations to diabetic OVX and OVX rats may strengthen the antioxidant defense system by reducing lipid peroxidation, and therefore they may play a role in preventing renal disorders.
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Affiliation(s)
- Mustafa Ulas
- Department of Physiology, Faculty of Medicine, Firat University, Elazig, Turkey.
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Kamhieh-Milz J, Bal G, Sterzer V, Kamhieh-Milz S, Arbach O, Salama A. Reduced antioxidant capacities in platelets from patients with autoimmune thrombocytopenia purpura (ITP). Platelets 2011; 23:184-94. [DOI: 10.3109/09537104.2011.610909] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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van de Weijer T, Schrauwen-Hinderling VB, Schrauwen P. Lipotoxicity in type 2 diabetic cardiomyopathy. Cardiovasc Res 2011; 92:10-8. [PMID: 21803867 DOI: 10.1093/cvr/cvr212] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
As obesity and type 2 diabetes are becoming an epidemic in westernized countries, the incidence and prevalence of obesity- and diabetes-related co-morbidities are increasing. In type 2 diabetes ectopic lipid accumulation in the heart has been associated with cardiac dysfunction and apoptosis, a process termed lipotoxicity. Since cardiovascular diseases are the main cause of death in diabetic patients, diagnosis and treatment become increasingly important. Although ischaemic heart disease is a major problem in diabetes, non-ischaemic heart disease (better known as diabetic cardiomyopathy) becomes increasingly important with respect to the impairment of cardiac function and mortality in type 2 diabetes. The underlying aetiology of diabetic cardiomyopathy is incompletely understood but is beginning to be elucidated. Various mechanisms have been proposed that may lead to lipotoxicity. Therefore, this review will focus on the mechanisms of cardiac lipid accumulation and its relation to the development of cardiomyopathy.
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Affiliation(s)
- Tineke van de Weijer
- Department of Human Biology, Maastricht University Medical Centre, PO Box 616, 6200 MD Maastricht, The Netherlands
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Sakhi AK, Berg TJ. Reduced glutathione concentrations are not decreased in red blood cells of patients with long term type 1-diabetes. Scand J Clin Lab Invest 2010; 71:108-11. [DOI: 10.3109/00365513.2010.536851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Webb CB, Falkowski L. Oxidative stress and innate immunity in feline patients with diabetes mellitus: the role of nutrition. J Feline Med Surg 2008; 11:271-6. [PMID: 18783975 DOI: 10.1016/j.jfms.2008.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2008] [Indexed: 11/16/2022]
Abstract
This study was undertaken to test the hypothesis that oxidative stress is increased and neutrophil function is decreased in cats with diabetes mellitus (DM). Measures of oxidative stress and neutrophil function were evaluated in 20 control and 15 diabetic cats. Cats were then fed a diet designed specifically for feline diabetics (Purina DM Dietetic Management Feline Formula) for 8 weeks, after which all assays were repeated. Cats with DM had significantly less plasma superoxide dismutase (SOD) than control cats, consistent with a greater degree of oxidative stress in the DM group. Following 8 weeks of consuming a diabetes-specific diet glutathione peroxidase, an antioxidant enzyme increased significantly in both groups. Other parameters of oxidative stress, as well as neutrophil function, were similar between groups and did not change following dietary intervention. The DM cats were significantly older and heavier than the control cats, which may have contributed to differences in parameters of oxidative stress and levels of antioxidant enzymes between these groups, but the decreased level of SOD enzyme in the diabetic group would appear to support the continued development of targeted antioxidant supplementation for this cats with this disease.
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Affiliation(s)
- Craig B Webb
- Clinical Sciences Department, Colorado State University, Fort Collins, CO 80523, USA.
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