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Hemorheological study on erythrocyte aggregation in patients with type 2 diabetes mellitus without cholesterol and with hyper cholesterol. THROMBOSIS UPDATE 2021. [DOI: 10.1016/j.tru.2021.100085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Bianchetti G, Viti L, Scupola A, Di Leo M, Tartaglione L, Flex A, De Spirito M, Pitocco D, Maulucci G. Erythrocyte membrane fluidity as a marker of diabetic retinopathy in type 1 diabetes mellitus. Eur J Clin Invest 2021; 51:e13455. [PMID: 33210748 DOI: 10.1111/eci.13455] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/04/2020] [Accepted: 11/15/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND A high level of glycosylated haemoglobin (HbA1c), which is a nonenzymatic glycosylation product, is correlated with an increased risk of developing microangiopathic complications in Diabetes Mellitus (DM). Erythrocyte membrane fluidity could provide a complementary index to monitor the development of complications since it is influenced by several hyperglycaemia-induced pathways and other independent risk factors. MATERIALS AND METHODS 15 healthy controls and 33 patients with long-duration (≥20 years) type 1 Diabetes Mellitus (T1DM) were recruited. Diabetic subjects were classified into two groups: T1DM, constituted by 14 nonretinopathic patients, and T1DM + RD, constituted by 19 patients in any stage of diabetic retinopathy. Red blood cells (RBC) were incubated with the fluorescent Laurdan probe and median values of Generalized Polarization (GP), representative of membrane fluidity, were compared between the two groups. Baseline characteristics among groups have been compared with Student's t test or ANOVA. Values of P < .05 were considered statistically significant. RESULTS All the participants were comparable for age, Body Mass Index (BMI), creatinine and lipid profile. The duration of diabetes was similar for T1DM (34.4 ± 7.8 years) and T1DM + RD (32.8 ± 7.5 years) subjects as well as values of HbA1c: (55.6 ± 8.1) mmol/mol for T1DM and (61.2 ± 11.0) mmol/mol for T1DM + RD, respectively. Erythrocyte plasmatic membranes of RD patients were found to be more fluid (GP: 0.40 ± 0.04) than non-RD patients (GP: 0.43 ± 0.03) with a statistically significant difference (P = .035). CONCLUSIONS Altered erythrocyte membrane fluidity may therefore represent a marker of retinopathy in T1DM patients as a result of post-translational modifications of multifactorial aetiology (nonenzymatic glycosylation of proteins, generation of reactive oxygen species, lipid peroxidation).
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Affiliation(s)
- Giada Bianchetti
- Fondazione Policlinico Universitario A, Gemelli IRCSS, Rome, Italy.,Department of Neuroscience, Section of Biophysics, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Luca Viti
- Fondazione Policlinico Universitario A, Gemelli IRCSS, Rome, Italy.,Diabetes Care Unit, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Andrea Scupola
- Fondazione Policlinico Universitario A, Gemelli IRCSS, Rome, Italy.,Diabetes Care Unit, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Mauro Di Leo
- Fondazione Policlinico Universitario A, Gemelli IRCSS, Rome, Italy.,Diabetes Care Unit, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Linda Tartaglione
- Fondazione Policlinico Universitario A, Gemelli IRCSS, Rome, Italy.,Diabetes Care Unit, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Andrea Flex
- Fondazione Policlinico Universitario A, Gemelli IRCSS, Rome, Italy.,Cardiovascular Disease Division, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Marco De Spirito
- Fondazione Policlinico Universitario A, Gemelli IRCSS, Rome, Italy.,Department of Neuroscience, Section of Biophysics, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Dario Pitocco
- Fondazione Policlinico Universitario A, Gemelli IRCSS, Rome, Italy.,Diabetes Care Unit, Università Cattolica Del Sacro Cuore, Rome, Italy
| | - Giuseppe Maulucci
- Fondazione Policlinico Universitario A, Gemelli IRCSS, Rome, Italy.,Department of Neuroscience, Section of Biophysics, Università Cattolica Del Sacro Cuore, Rome, Italy
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Skinner S, Connes P, Sigaudo-Roussel D, Lo M, Liu KL, Nader E, Josset-Lamaugarny A, Charrin E, Martin C, Romanet-Faes C, Diaw M, Pialoux V, Fromy B. Altered blood rheology and impaired pressure-induced cutaneous vasodilation in a mouse model of combined type 2 diabetes and sickle cell trait. Microvasc Res 2018; 122:111-116. [PMID: 30513282 DOI: 10.1016/j.mvr.2018.11.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/28/2018] [Accepted: 11/30/2018] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Type 2 diabetes (T2D)-related vascular dysfunction and hemorheological abnormalities could possibly be amplified by sickle cell trait (SCT). These alterations could potentially increase the risk of vascular complications in individuals with combined T2D and SCT. Therefore, this study used a mouse model to determine whether vascular function and blood rheology were more severely altered in combined T2D and SCT than in T2D or SCT alone. METHODS Townes transgenic mice with or without SCT received a 12-week high fat high sucrose or standard diet to create models of combined T2D-SCT, T2D, SCT, and controls. Pressure-induced vasodilation (PIV) and sodium nitroprusside (SNP)-mediated vasodilation in-vivo, and hemorheological parameters were measured. RESULTS No significant differences in blood viscosity, hematocrit, erythrocyte deformability, or PIV were observed between the control and T2D mice, or the control and SCT mice. However, blood viscosity, erythrocyte deformability, and PIV were significantly altered in the T2D-SCT mice compared to the control mice. There were no differences in SNP response between the groups. CONCLUSIONS Although neither T2D nor SCT alone had significant effects on blood rheology parameters or vascular function, combined T2D-SCT mice had significantly altered blood rheology and significantly impaired vascular function.
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Affiliation(s)
- Sarah Skinner
- LIBM EA7424, UCBL 1, Villeurbanne, France; Labex GR-Ex, Paris, France
| | - Philippe Connes
- LIBM EA7424, UCBL 1, Villeurbanne, France; Labex GR-Ex, Paris, France; Institut Universitaire de France, Paris, France.
| | | | - Ming Lo
- UMR 5305 CNRS, Lyon, France; Université de Lyon 1, UMR 5305, Lyon, France
| | - Kiao Ling Liu
- UMR 5305 CNRS, Lyon, France; Université de Lyon 1, UMR 5305, Lyon, France
| | - Elie Nader
- LIBM EA7424, UCBL 1, Villeurbanne, France; Labex GR-Ex, Paris, France
| | | | | | - Cyril Martin
- LIBM EA7424, UCBL 1, Villeurbanne, France; Labex GR-Ex, Paris, France
| | | | - Mor Diaw
- Laboratory of Physiology and Functional Exploration, FMPO, UCAD, Dakar, Senegal
| | - Vincent Pialoux
- LIBM EA7424, UCBL 1, Villeurbanne, France; Labex GR-Ex, Paris, France; Institut Universitaire de France, Paris, France
| | - Bérengère Fromy
- UMR 5305 CNRS, Lyon, France; Université de Lyon 1, UMR 5305, Lyon, France
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Skinner SC, Diaw M, Pialoux V, Mbaye MN, Mury P, Lopez P, Bousquet D, Gueye F, Diedhiou D, Joly P, Renoux C, Sow D, Diop S, Ranque B, Vinet A, Samb A, Guillot N, Connes P. Increased Prevalence of Type 2 Diabetes-Related Complications in Combined Type 2 Diabetes and Sickle Cell Trait. Diabetes Care 2018; 41:2595-2602. [PMID: 30327363 DOI: 10.2337/dc18-1289] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 09/24/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE The prevalence of type 2 diabetes (T2D) is rapidly increasing in sub-Saharan Africa, where sickle cell trait (SCT) is also frequent. Although SCT is generally considered a benign condition, evidence suggests that SCT could exaggerate vascular dysfunction in T2D. However, it remains unclear whether SCT could increase the risk of the development of T2D complications. Therefore, this study was conducted to determine whether T2D complications were more prevalent among Senegalese individuals with SCT and T2D than among those with T2D only. RESEARCH DESIGN AND METHODS Rates of hypertension, retinopathy, peripheral neuropathy, peripheral artery disease, and impaired renal function as well as arterial stiffness, blood rheology, and concentrations of plasma advanced glycation end products (AGEs) and cytokines were compared between groups of Senegalese individuals with combined SCT and T2D (T2D-SCT) (n = 60), T2D (n = 52), SCT (n = 53), and neither T2D nor SCT (control) (n = 56). Human aortic endothelial cell (HAEC) expression of inflammatory and adhesion factors was measured after treatment with tumor necrosis factor-α and subjects' plasma. Effects of AGE inhibition or tiron on HAEC expression of E-selectin were measured. RESULTS Retinopathy, hypertension, and reduced renal function were more prevalent, and arterial stiffness, blood viscosity at high shear rates, and thixotropic index were higher, in the SCT group compared with the other groups. Multivariable analysis showed that plasma AGE concentration was significantly associated with arterial stiffness. E-selectin expression was elevated in HAECs treated with T2D-SCT plasma compared with the other groups, but AGE inhibition reversed this. CONCLUSIONS SCT could potentially augment the risk of the development of T2D-related complications, including retinopathy, nephropathy, and hypertension.
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Affiliation(s)
- Sarah C Skinner
- Inter-university Laboratory of Biology of Motor Function EA7424, Vascular Biology and the Red Blood Cell Team, Claude Bernard University Lyon 1, University de Lyon 1, Villeurbanne, France.,Laboratory of Excellence GR-EX, Paris, France
| | - Mor Diaw
- Laboratory of Physiology and Functional Exploration, Faculté de Medecine de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Vincent Pialoux
- Inter-university Laboratory of Biology of Motor Function EA7424, Vascular Biology and the Red Blood Cell Team, Claude Bernard University Lyon 1, University de Lyon 1, Villeurbanne, France.,Laboratory of Excellence GR-EX, Paris, France.,Institute of Universities of France, Paris, France
| | | | - Pauline Mury
- Inter-university Laboratory of Biology of Motor Function EA7424, Vascular Biology and the Red Blood Cell Team, Claude Bernard University Lyon 1, University de Lyon 1, Villeurbanne, France.,Laboratory of Excellence GR-EX, Paris, France
| | - Philomène Lopez
- Laboratory of Pharmaceutical Biochemistry, Faculté de Medecine de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Delphine Bousquet
- CarMeN Laboratory, INSERM 1060, Institut National des Sciences Appliquées 1397, Université Claude Bernard Lyon 1, Institut National des Sciences Appliquées Lyon, Villeurbanne, France
| | - Fatou Gueye
- Laboratory of Pharmaceutical Biochemistry, Faculté de Medecine de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Demba Diedhiou
- Medical Clinic II, Abass Ndao Hospital Center, Dakar, Senegal
| | - Philippe Joly
- Inter-university Laboratory of Biology of Motor Function EA7424, Vascular Biology and the Red Blood Cell Team, Claude Bernard University Lyon 1, University de Lyon 1, Villeurbanne, France.,Laboratory of Excellence GR-EX, Paris, France.,Laboratory of Biochemistry of Erythrocyte Pathologies, Biology Center East, Bron, France
| | - Céline Renoux
- Inter-university Laboratory of Biology of Motor Function EA7424, Vascular Biology and the Red Blood Cell Team, Claude Bernard University Lyon 1, University de Lyon 1, Villeurbanne, France.,Laboratory of Excellence GR-EX, Paris, France.,Laboratory of Biochemistry of Erythrocyte Pathologies, Biology Center East, Bron, France
| | - Djiby Sow
- Medical Clinic II, Abass Ndao Hospital Center, Dakar, Senegal
| | - Saliou Diop
- Laboratory of Hemato-Immunology, Faculté de Medecine de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Brigitte Ranque
- Laboratory of Excellence GR-EX, Paris, France.,INSERM, UMR_S970, Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Agnès Vinet
- Laboratoire de Pharm-Ecologie Cardiovasculaire, Université d'Avignon, Avignon, France
| | - Abdoulaye Samb
- Laboratory of Physiology and Functional Exploration, Faculté de Medecine de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar, Dakar, Senegal
| | - Nicolas Guillot
- CarMeN Laboratory, INSERM 1060, Institut National des Sciences Appliquées 1397, Université Claude Bernard Lyon 1, Institut National des Sciences Appliquées Lyon, Villeurbanne, France
| | - Philippe Connes
- Inter-university Laboratory of Biology of Motor Function EA7424, Vascular Biology and the Red Blood Cell Team, Claude Bernard University Lyon 1, University de Lyon 1, Villeurbanne, France .,Laboratory of Excellence GR-EX, Paris, France.,Institute of Universities of France, Paris, France
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Buko V, Zavodnik I, Kanuka O, Belonovskaya E, Naruta E, Lukivskaya O, Kirko S, Budryn G, Żyżelewicz D, Oracz J, Sybirna N. Antidiabetic effects and erythrocyte stabilization by red cabbage extract in streptozotocin-treated rats. Food Funct 2018. [PMID: 29517782 DOI: 10.1039/c7fo01823a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The protective effect of red cabbage extract (RCE) was evaluated in rats with streptozotocin-induced diabetes, assessing a probable role of this extract in the prevention of erythrocyte impairments associated with a high risk of vascular complications in diabetes. RCE was analyzed by ultrahigh performance liquid chromatography and mass spectrometry, and 11 anthocyanins, 3 hydroxybenzoic acids and 9 hydroxycinnamic acids were identified. Type 1 diabetes was induced by streptozotocin (60 mg kg-1) in Wistar male rats (n = 8 per group). After 7 days of acclimatization, streptozotocin-treated rats were given RCE (800 mg kg-1) or vehicle by intragastric administration for 4 weeks. The RCE treatment lowered blood glucose, and glycated and fetal hemoglobin concentrations and improved glucose tolerance as well as considerably raised serum insulin, proinsulin and C-peptide levels in streptozotocin-treated rats. Simultaneously, RCE improved pancreatic islet morphology, increasing the amount of pancreatic β-cells in diabetic animals. The RCE administration prevented anemia in rats with streptozotocin-induced diabetes, enhanced erythrocyte resistance to acid hemolysis, and normalized reticulocyte production as well as sialic acid content in erythrocyte membranes. The enhanced lectin-induced erythrocyte aggregation in diabetic rats was significantly lowered after the RCE treatment. RCE demonstrated a significant antioxidant effect, decreasing MDA and protein carbonyl contents and increasing catalase and glutathione peroxidase activities in erythrocytes. These results indicate that RCE can be considered as a promising candidate for use as a drug or a food supplement to alleviate diabetes and its vascular complications.
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Affiliation(s)
- Vyacheslav Buko
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Compounds, National Academy of Sciences, 230030 Grodno, Belarus. and University of Medical Sciences, 15-875 Białystok, Poland
| | - Ilya Zavodnik
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Compounds, National Academy of Sciences, 230030 Grodno, Belarus. and Department of Biochemistry, Yanka Kupala State University, 230023 Grodno, Belarus
| | - Olena Kanuka
- Department of Biochemistry, Ivan Franko Lviv National University, 79000 Lviv, Ukraine
| | - Elena Belonovskaya
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Compounds, National Academy of Sciences, 230030 Grodno, Belarus.
| | - Elena Naruta
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Compounds, National Academy of Sciences, 230030 Grodno, Belarus.
| | - Oxana Lukivskaya
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Compounds, National Academy of Sciences, 230030 Grodno, Belarus.
| | - Siargej Kirko
- Division of Biochemical Pharmacology, Institute of Biochemistry of Biologically Active Compounds, National Academy of Sciences, 230030 Grodno, Belarus.
| | - Grazyna Budryn
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 90-924 Lodz, Poland
| | - Danuta Żyżelewicz
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 90-924 Lodz, Poland
| | - Joanna Oracz
- Institute of Food Technology and Analysis, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 90-924 Lodz, Poland
| | - Natalia Sybirna
- Department of Biochemistry, Ivan Franko Lviv National University, 79000 Lviv, Ukraine
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Hai A, Kizilbash N. Increase in activity of Na +, K +-ATPase by Porphyrin compounds as treatment for Dysnatremias caused by Diabetes Mellitus. Pak J Med Sci 2016; 32:1131-1134. [PMID: 27882008 PMCID: PMC5103120 DOI: 10.12669/pjms.325.11530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE The aim of this study was to test the action of Porphyrin compounds, Tetraphenylporphine sulfonate (TPPS), 5,10,15,20-Tetrakis (4-sulfonatophenyl) porphyrinato Iron(III) Chloride (FeTPPS) and 5,10,15,20-Tetrakis (4-sulfonatophenyl) porphyrinato Iron(III) nitrosyl Chloride (FeNOTPPS), on Na+, K+ -ATPase of cell membrane of erythrocytes. METHODS Enzymatic assays, measuring the amount of inorganic phosphate produced, were used to estimate the activity of Na+, K+-ATPase. RESULTS The results show that Porphyrin compounds exert an insulin-like effect on Na+, K+-ATPase. They act by increasing the activity of the membrane-bound enzyme. CONCLUSION All the three Porphyrin compounds increased the activity of erythrocyte Na+, K+-ATPase. The exact mechanism of action of these compounds is not clear.
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Affiliation(s)
- Abdul Hai
- Abdul Hai, Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Northern Border University, Arar, Saudi Arabia
| | - Nadeem Kizilbash
- Nadeem Kizilbash, Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Northern Border University, Arar, Saudi Arabia
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Ziegelhöffer A, Waczulíková I, Ferko M, Šikurová L, Mujkošová J, Ravingerová T. Involvement of membrane fluidity in endogenous protective processes running on subcellular membrane systems of the rat heart. Physiol Res 2013; 61:S11-21. [PMID: 23130895 DOI: 10.33549/physiolres.932361] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Membrane fluidity is a widely recognized biophysical variable that provides information about structural organization of the subcellular membranes exhibiting physical characteristics of liquid crystals. The term "fluidity" reflects in this case the tightness in packing of acyl parts of the membrane phospholipid molecules, a feature that may influence considerably the molecular mobility and via that also the sensitivity and reactivity of membrane-bound transporters, receptors and enzyme systems. Data presented in this review are aimed to demonstrate the substantial role of changes in membrane fluidity occurring in the processes associated with endogenous protection observed in cardiac sarcolemma and mitochondria in diverse pathologies, particularly in diabetes and hypertension.
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Affiliation(s)
- A Ziegelhöffer
- Institute for Heart Research, Slovak Academy of Sciences and Centre of Excellence, Slovak Academy of Sciences, NO REG, Bratislava, Slovakia.
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Effect of (-)epicatechin in modulating calicum-atpase activity in normal and diabetic human erythrocytes. Indian J Clin Biochem 2012; 17:27-32. [PMID: 23105347 DOI: 10.1007/bf02867968] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Aqueous extract of the wood ofPterocarpus marsupium, commonly known as 'bijasar', is used in Indian Ayurveda system of medicine for treatment of diabetes. The active anti-diabetic principle in its aqueous extract has been found to be (-)epicatechin, a flavonoid. The present work was undertaken to study the effect of (-)epicatechin on erythrocyte membrane Ca(++)-ATPase from type 2 diabetic patients. The activity of erythrocyte Ca(++)-ATPase was significantly lower in type 2 diabetics.In vitro insulin treatment of erythrocyte ghosts, resulted in the increase of Ca(++)-ATPase activity in diabetic patients. Treatment with (-)epicatechin (1mM) resulted in an increase in the activity of erythrocyte Ca(++)-ATPase in both normal individuals and type 2 diabetic patients. The insulin like effect of (-)epicatechin on erythrocyte membrane Ca(++)-ATPase in type 2 diabetics is an interesting finding. Further work is needed to elucidate the mechanism of action of (-)epicatechin on modulation of erythrocyte membrane bound enzymes.
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Watala C, Golański J, Walkowiak B, Baj Z, Pietrucha T, Tchórzewski H, Bodalski J, Ciemiewski CS. Does reduced membrane lipid fluidity underlie the altered thrombin-induced expression of integrin α(IIb)β(3) and PADGEM-140 in membranes of platelets from diabetic juveniles? Platelets 2012; 7:173-80. [PMID: 21043597 DOI: 10.3109/09537109609023577] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In diabetic patients, where the membrane lipid microviscosity of blood platelets is altered, the availability of platelet membrane receptors may change concomitantly. Platelet hypersensitivity in diabetic subjects was previously hypothesized to result from the nonenzymatic glycosylation-induced loss in platelet membrane fluidity. In our present study juvenile type 1 diabetic subjects were compared with their relevant controls with respect to thrombin-stimulated platelet activation in relation to glycation-induced impairments of platelet membrane dynamics. Our results indicate that: (a) the mean steady-state fluorescence polarization (p) of both 1,6-diphenyl-1,3,5-hexatriene (DPH) and 1-anilino-8-naphthalenesulphonate (ANS) in membranes from diabetic subjects were significantly greater than for control subjects, thus indicating reduced membrane lipid fluidity in diabetic platelets in various membrane regions; (b) the significantly higher [(3)H]NaBH(4) reduction, indicating the increased attachment of glucose to protein amino groups, was attributed to the proteins extracted from diabetic platelet membranes; (c) CD62-positive resting platelets were not significantly more abundant in diabetic patients; (d) basically, unaltered amounts of PADGEM-140 membrane antigen (CD62) copies were detected in resting diabetic platelets; (e) significantly higher numbers of membrane glycoprotein β(3) were found in diabetic platelets; (f) thrombin-induced elevations in the expression of CD61 (β(3)) and CD62 (PADGEM-140) occurred to much higher extent in platelets of diabetic patients, thus pointing to more profound activation of diabetic platelets by thrombin; (g) the total amounts of platelet membrane glycoprotein β(3) was significantly reduced in platelet lysates from diabetic subjects. We conclude that glycation-induced rigidization of platelet membranes might hypersensitize diabetic platelets to aggregating agents by rendering platelet membrane receptors more exposed to the external environment. Thus, thrombin may bind more efficiently to the exposed glycoprotein receptors (due to glycation) in diabetic platelets. Such excessive exposure and displacements toward the external environment might favour the accelerated shedding of some membrane proteins in diabetic platelets. We further suggest that their subsequent replacements would render platelet intrinsic storage pools exhausted and thus, might explain the diminished total amount of β(3) found in platelets of diabetic patients.
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Affiliation(s)
- C Watala
- Laboratory of Haemostatic Disorders, Department of Laboratory Diagnostics, Military Medical University of Lódź, Lódź, Poland
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10
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Nurulain SM, Petroianu G, Shafiullah M, Kalász H, Oz M, Saeed T, Adem A, Adeghate E. Sub-chronic exposure to paraoxon neither induces nor exacerbates diabetes mellitus in Wistar rat. J Appl Toxicol 2012; 33:1036-43. [PMID: 22886793 DOI: 10.1002/jat.2794] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Revised: 06/01/2012] [Accepted: 06/02/2012] [Indexed: 02/05/2023]
Abstract
There is an increasing belief that organophosphorus compounds (OPCs) impair glucose homeostasis and cause hyperglycemia and diabetes mellitus. The present study was undertaken to investigate the putative diabetogenic effect of sub-lethal and sub-chronic exposure to paraoxon (POX), an extremely hazardous OPC used in pesticides. The effect of paraoxon on streptozotocin-induced diabetic rats was also examined. Each rat was injected with 100 nmol of POX 5 days per week for 6 weeks. Blood glucose levels and red blood cell acetylcholinesterase activity were measured weekly. Biochemical analysis and morphological studies were performed at the end of the experiment. The results revealed that POX neither induces nor exacerbates diabetes mellitus in experimental rats. Liver and kidney/body weight ratios revealed statistically insignificant differences when compared with controls. Biochemical analysis of urine samples showed a small but not significant increase in protein level in all groups. Urine bilirubin was significantly higher in the diabetes + POX group when compared with the control group. The number of blood cells in urine was significantly higher in the POX-treated group compared with the control group. Hyperglycemia was noted in the diabetes and diabetes + POX groups, but neither in the saline control nor in POX-treated normal rats. Electron microscopy of POX-treated pancreas did not show any morphological changes in beta cells. These results suggest that POX does not cause diabetes mellitus at sub-lethal sub-chronic exposure.
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Affiliation(s)
- Syed M Nurulain
- Department of Pharmacology and Therapeutics, Faculty of Medicine and Health Sciences, United Arab Emirates University, UAE
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11
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Srikanth CB, Salimath PV, Nandini CD. Erythrocytes express chondroitin sulphate/dermatan sulphate, which undergoes quantitative changes during diabetes and mediate erythrocyte adhesion to extracellular matrix components. Biochimie 2012; 94:1347-55. [PMID: 22426386 DOI: 10.1016/j.biochi.2012.03.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Accepted: 03/02/2012] [Indexed: 01/28/2023]
Abstract
Glycosaminoglycans (GAGs) such as chondroitin sulphate/dermatan sulphate (CS/DS) are complex molecules that are widely expressed on the cell membrane and extracellular matrix (ECM). They play an important role in wide range of biological activities especially during pathological conditions. Diabetes, a metabolic disorder characterized by sustained hyperglycemia, is known to affect GAGs in different tissues and affect erythrocyte adhesion. The present investigation was aimed at exploring the nature of GAGs present in erythrocytes and its role on adhesion of erythrocytes from control and diabetic rats to major extracellular matrix components. GAGs isolated from erythrocytes were demonstrated to be CS/DS and a 2-fold increase was observed in erythrocytes from diabetic rats. Disaccharide composition analysis by HPLC after depolymerization by the enzyme, chondroitinase ABC showed the presence of 4-O sulphated disaccharide units with small amounts of non-sulphated disaccharides, in both control and diabetic erythrocytes. Erythrocytes from diabetic rats, however, showed significantly increased binding to poly-l-ornithine (P-orn), type IV collagen, laminin and fibronectin, which was abrogated on treatment with chondroitinase ABC to various degrees. This study sheds new light on CS/DS in erythrocytes and its likely biological implications in vivo.
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Affiliation(s)
- C B Srikanth
- Department of Biochemistry and Nutrition, Central Food Technological Research Institute, Mysore 570 020, Karnataka, India
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12
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Swiderek M, Kozubski W, Watala C. Abnormalities in platelet membrane structure and function in Alzheimer's disease and ischaemic stroke. Platelets 2010; 8:125-33. [DOI: 10.1080/09537109709169327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Waczulikova I, Habodaszova D, Cagalinec M, Ferko M, Ulicna O, Mateasik A, Sikurova L, Ziegelhöffer A. Mitochondrial membrane fluidity, potential, and calcium transients in the myocardium from acute diabetic rats. Can J Physiol Pharmacol 2007; 85:372-81. [PMID: 17612646 DOI: 10.1139/y07-035] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this study, we report for the first time concurrent measurements of membrane potential and dynamics and respiratory chain activities in rat heart mitochondria, as well as calcium transients in the hearts of rats in an early phase of streptozotocin diabetes, not yet accompanied with diabetes-induced complications. Quantitative relationships among these variables were assessed. The mitochondria from diabetic rats exhibited decreased fluorescence anisotropy values of diphenylhexatriene. This indicates that hydrophobic core of the membranes was more fluid compared with controls (p<0.05). We discuss the changes in fluidity as having been associated with augmented energy transduction through the diabetic membranes. Reduced ratio of JC-1 fluorescence (aggregates to monomers) in the mitochondria from diabetic hearts reflected descendent transmembrane potential. A significant negative association between membrane fluidity and potential in the diabetic group was found (p<0.05; r=0.67). Further, we observed an increase in calcium transient amplitude (CTA) in the diabetic cardiomyocytes (p=0.048). We conclude that some of the calcium-induced regulatory events that dictate fuel selection and capacity for ATP production in diabetic heart occur at the membrane level. Our findings offer new insight into acute diabetes-induced changes in cardiac mitochondria.
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Affiliation(s)
- Iveta Waczulikova
- Department of Nuclear Physics and Biophysics, Division of Biomedical Physics, Faculty of Mathematics, Physics, and Informatics, Comenius University, Mlynska dolina F1, 842 48 Bratislava, Slovak Republic.
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14
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Gresner P, Dolník M, Waczulíková I, Bryszewska M, Sikurová L, Watala C. Increased blood plasma hydrolysis of acetylsalicylic acid in type 2 diabetic patients: a role of plasma esterases. Biochim Biophys Acta Gen Subj 2005; 1760:207-15. [PMID: 16442234 DOI: 10.1016/j.bbagen.2005.11.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2005] [Revised: 11/22/2005] [Accepted: 11/28/2005] [Indexed: 10/25/2022]
Abstract
Hydrolysis of acetylsalicylic acid (ASA, aspirin), an antiplatelet drug commonly used in the prevention of stroke and myocardial infarction, seems to play a crucial role in its pharmacological action. Thirty-eight healthy volunteers and 38 type 2 diabetic patients were enrolled to test the hypothesis that the enhanced plasma degradation and lowered bioavailability of ASA in diabetic patients is associated with the attenuation of platelet response. Aspirin esterase activities were tested at pH 7.4 and 5.5. A significantly higher overall aspirin esterase activity was noted at pH 7.4 in the diabetic patients (P<0.003), corresponding to faster ASA hydrolysis (P<0.006). This increased activity was attributable to butyrylcholinesterase and probably to albumin, because it was effectively inhibited by eserine and 4-bis-nitrophenyl phosphate (P<0.01). No significant differences between control and diabetic subjects were found at pH 5.5 in either enzymatic activities or ASA hydrolysis rates. The enhanced plasma ASA degradation in diabetic subjects was significantly associated with the refractoriness of blood platelets to ASA (P<0.05) and modulated by plasma cholesterol (P<0.01). No direct effects of plasma pH or albumin were observed. In conclusion, higher aspirin esterase activity contributes to the lowered response of diabetic platelets to ASA-mediated antiplatelet therapy.
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Affiliation(s)
- Peter Gresner
- Department of Haemostasis and Haemostatic Disorders, Medical University of Lodz, Zeromskiego 113, 90-549 Lodz, Poland
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15
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Rizvi SI, Zaid MA. Impairment of sodium pump and Na/H exchanger in erythrocytes from non-insulin dependent diabetes mellitus patients: effect of tea catechins. Clin Chim Acta 2004; 354:59-67. [PMID: 15748600 DOI: 10.1016/j.cccn.2004.11.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2004] [Revised: 11/08/2004] [Accepted: 11/12/2004] [Indexed: 10/26/2022]
Abstract
BACKGROUND Tea catechins (EGCG, EGC, ECG and EC) possess many important biological properties. We evaluated the effect of tea catechins on erythrocyte membrane Na(+)/K(+)-ATPase and sodium/hydrogen exchanger (NHE) activity in normal (control) and NIDDM subjects. METHODS Erythrocyte membrane Na(+)/K(+)-ATPase and NHE activity were determined in normal and non-insulin dependent diabetes mellitus (NIDDM) patients. In vitro effect of tea catechins was studied by incubating membrane/intact erythrocytes in assay medium prior to Na(+)/K(+)-ATPase/NHE activity determination. RESULTS A 24.2% decrease in the activity of Na(+)/K(+)-ATPase (p<0.001) and 39.37% increase in activity of NHE (p<0.02) were observed in NIDDM subjects compared to normal. Tea catechins inhibited the activity of Na(+)/K(+)-ATPase and NHE in both normal and NIDDM erythrocytes, the effect was concentration-dependent. The inhibitory effect of EGCG and ECG at micromolar concentrations was greater compared to EGC and EC on Na(+)/K(+)-ATPase. On NHE the inhibition of tea catechins was in the order: EC>EGC>ECG>EGCG at concentrations up to 10 micromol/l. CONCLUSIONS This data may help to explain the anti-carcinogenic and cardioprotective effects of tea catechins. The effect of tea catechins on Na(+)/K(+)-ATPase and NHE may be explained due to a direct effect of these compounds on plasma membrane leading to a change in membrane fluidity.
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Affiliation(s)
- Syed Ibrahim Rizvi
- Department of Biochemistry, University of Allahabad, Allahabad - 211 002, India
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16
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Waczulíková I, Sikurová L, Cársky J. Fluidity gradient of erythrocyte membranes in diabetics: the effect of resorcylidene aminoguanidine. Bioelectrochemistry 2002; 55:53-5. [PMID: 11786339 DOI: 10.1016/s1567-5394(01)00134-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We estimated in vitro membrane fluidity gradient in erythrocytes (RBC) from diabetic patients, using a fluorescent dye 1,6-diphenyl-1,3,5-hexatriene (DPH). The rate constant of DPH incorporation (k) into the membranes was determined by fitting experimental data to an exponential equation. Four important findings were made. First, membrane fluidity in the hydrocarbon region of RBC from diabetic patients is decreased compared with control cells (P<0.01). Second, the rate constant k of DPH incorporation into the membranes of RBC from diabetic patients was lower (P<0.01), which indicates an altered fluidity gradient in the membranes. Third, resorcylidene aminoguanidine (RAG) decreased significantly (P<0.001) the anisotropy values in RBC membranes from diabetic patients, which means that it apparently acted as a fluidizing agent. Lastly, no significant differences in the rate constants k were found between the control membranes (from RAG untreated RBC) and the membranes isolated from RAG pretreated blood from diabetic patients, as well as between the control membranes and those from RAG pretreated control blood. In conclusion, RAG affects lipid-protein interactions in RBC membranes, which results in membrane lipid bilayer fluidization and leads to the restoration of natural physiological membrane dynamic parameters in RBC from diabetic patients.
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Affiliation(s)
- Iveta Waczulíková
- Department of Biophysics and Chemical Physics, Faculty of Mathematics and Physics, Comenius University, Mlynská dolina F1, 842 48 Bratislava SK, Slovak Republic.
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Rizvi SI, Zaid MA. Insulin-like effect of (-)epicatechin on erythrocyte membrane acetylcholinesterase activity in type 2 diabetes mellitus. Clin Exp Pharmacol Physiol 2001; 28:776-8. [PMID: 11553037 DOI: 10.1046/j.1440-1681.2001.03513.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
1. Changes in the activity of acetylcholinesterase (AChE) have been reported in diabetes mellitus that have been linked to certain brain defects. The erythrocyte membrane AChE is reported to be similar to AChE present in the brain. 2. Epicatechin, a member of a group of polyphenolic compounds collectively known as "catechins" that are present in tea and belong to the flavonoid family, has been reported to possess insulin-like activity. 3. In the present study, the in vitro effect of (-)epicatechin and/or insulin was tested on erythrocyte membrane AChE in normal and type 2 diabetic patients. The aim of the study was to test the efficacy of (-)epicatechin to mimic insulin in its effect on erythrocyte membrane AChE. 4. Acetylcholinesterase activity was significantly lower in type 2 diabetic patients than in normal controls and in vitro insulin treatment restored this activity to normal levels. Epicatechin (1 mmol/L) also caused an elevation in AChE activity in diabetic erythrocytes, an effect that was similar to the effect of insulin. 5. Epicatechin has a pronounced insulin-like effect on erythrocyte membrane-bound AChE in type 2 diabetic patients; however, the mechanism of action of epicatechin remains speculative.
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Affiliation(s)
- S I Rizvi
- Department of Biochemistry, University of Allahabad, Allahabad 211002, India.
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Loizou CL, Ozanne SE, Hales CN. The effect of insulin on delta5 desaturation in hepG2 human hepatoma cells and L6 rat muscle myoblasts. Prostaglandins Leukot Essent Fatty Acids 1999; 61:89-95. [PMID: 10509863 DOI: 10.1054/plef.1999.0076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In humans there is a correlation between the ratio of arachidonic acid (20:4n-6) to cis 8,11,14 eicosatrienoic acid (20:3n-6) in skeletal muscle phospholipids and insulin sensitivity. This has been interpreted as indicating a link between the activity of the delta5 desaturase enzyme and muscle insulin sensitivity. The present study addressed the possibility that insulin regulates delta5 desaturase activity using L6 rat myoblasts and hepG2 human hepatoma cells. Both cell lines responded to insulin by increasing the amount of D-[U-14C] glucose incorporated into glycogen. In L6 cells, insulin stimulated cis 8,11,14 eicosatrienoic acid uptake and arachidonic acid production but had no effect on the percentage conversion of cis 8,11,14 eicosatrienoic acid to arachidonic acid. In hepG2 cells, insulin had no effect on cis 8,11,14 eicosatrienoic acid uptake or arachidonic acid production. These results suggest that insulin has no direct effect on delta5 desaturase activity in the liver but can alter arachidonic acid production in muscle by altering substrate availability.
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Affiliation(s)
- C L Loizou
- Department of Clinical Biochemistry, University of Cambridge, Addenbrooke's Hospital, UK.
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Muller S, Denet S, Candiloros H, Barrois R, Wiernsperger N, Donner M, Drouin P. Action of metformin on erythrocyte membrane fluidity in vitro and in vivo. Eur J Pharmacol 1997; 337:103-10. [PMID: 9389387 DOI: 10.1016/s0014-2999(97)01287-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The lipid domains of the cell membrane are believed to be one of the sites where biguanides exert their antihyperglycemic effect. We have examined the effects of metformin on the membrane fluidity of intact erythrocytes in vivo and in vitro. Membrane fluidity was measured by monitoring changes in the anisotropy of the fluorescent probe 6-antroyloxystearic acid (6-AS). The erythrocyte membranes from patients with non-insulin dependent diabetes mellitus treated with metformin were more fluid than those from non-insulin dependent diabetes mellitus patients treated by diet or healthy controls. There was no correlation between membrane fluidity and the plasma lipids or the parameters of metabolic control, suggesting that the high fluidity is an effect of metformin itself. Incubation of erythrocytes from healthy controls and diabetic patients treated by diet or glibenclamide with metformin in vitro confirmed that metformin increases the fluidity of erythrocyte membranes. In vitro metformin did not alter the fluidity of membranes from diabetic patients treated with metformin, perhaps because the basal high fluidity due to their in vivo interaction with plasma metformin could be increased no further. Since insulin appears to be required for the antihyperglycemic effect of metformin, the effect of insulin on membrane fluidity was also evaluated. Insulin generally had a small fluidizing effect on erythrocytes in vitro. The fluidizing action of both insulin and metformin could represent a membrane event common to the hormone and drug leading to additive or synergistic effects in vivo.
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Affiliation(s)
- S Muller
- Groupe de Recherches sur les Interactions Moléculaires aux Interfaces, Vandoeuvre les Nancy, France
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Kubatiev AA, Balashova TS, Balabolkin MI, Tomilova EN. Potassium transport through the erythrocyte plasma membrane in patients with insulin-dependent diabetes mellitus: Effects of insulin therapy. Bull Exp Biol Med 1996. [DOI: 10.1007/bf02446041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Tong P, Thomas T, Berrish T, Humphriss D, Barriocanal L, Stewart M, Walker M, Wilkinson R, Alberti KG. Cell membrane dynamics and insulin resistance in non-insulin-dependent diabetes mellitus. Lancet 1995; 345:357-8. [PMID: 7845118 DOI: 10.1016/s0140-6736(95)90343-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Insulin resistance in non-insulin-dependent diabetes mellitus (NIDDM) could be related to changes in cell membrane properties. We measured insulin sensitivity and mononuclear leucocyte membrane fluidity by fluorescence polarisation in fifteen NIDDM patients and twenty-one normal subjects. Core-region anisotropy was significantly lower in leucocytes from diabetic subjects (mean 0.164 vs 0.174, p < 0.001). Insulin sensitivity was positively correlated with such anisotropy before and after acute in-vitro insulin treatment. There was no difference in superficial membrane anisotropy. This study suggests that altered membrane dynamics in NIDDM may contribute to insulin resistance.
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Affiliation(s)
- P Tong
- Department of Medicine, Medical School, University of Newcastle upon Tyne, UK
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Affiliation(s)
- M A Devynck
- Department of Pharmacology, Necker Medical School, Paris V University, France
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Muzulu SI, Bing RF, Norman RI, Burden AC. Human red cell membrane fluidity and calcium pump activity in normolipidaemic type II diabetic subjects. Diabet Med 1994; 11:763-7. [PMID: 7851070 DOI: 10.1111/j.1464-5491.1994.tb00350.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Red cell membrane cholesterol, 1,6-diphenyl-1,3,5-hexatriene (DPH) and 1-[(4-trimethylammonium)phenyl]-6-phenyl-1,3,5-hexatriene (TMA-DPH) anisotropies and basal and calmodulin-stimulated calcium pump activities were compared in 16 normolipidaemic Type 2 (non-insulin-dependent) diabetic patients and 20 normolipidaemic control subjects using the Mann-Whitney U-test. Serum cholesterol, membrane cholesterol, and membrane DPH and TMA-DPH anisotropies were similar in the two groups but both basal and calmodulin-stimulated calcium pump activities were reduced in the diabetic group: basal activity (median (inter-quartile range), mumol mg-1 h-1) 1.66 (1.18-1.97) vs 2.09 (1.90-2.50), p < 0.005 and calmodulin-stimulated activity 4.19 (3.07-5.48) vs 5.53 (4.70-6.88), p < 0.006. Although there were no correlations between glycaemic control and membrane anisotropy and between glycaemic control and calcium pump activity, the reduction in calcium pump activity is most likely due to a direct effect of diabetes on the calcium pump protein itself.
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Affiliation(s)
- S I Muzulu
- Department of Medicine and Therapeutics, University of Leicester, UK
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