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Mujić I, Zeković Z, Vidović S, Radojković M, Živković J, Gođevac D. Fatty Acid Profiles of Four Wild Mushrooms and Their Potential Benefits for Hypertension Treatment. J Med Food 2011; 14:1330-7. [DOI: 10.1089/jmf.2010.0352] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ibrahim Mujić
- Colegium Fluminense Polytechnic of Rijeka, Trpimirova, Rijeka, Croatia
| | - Zoran Zeković
- Faculty of Technology, University of Novi Sad, Novi Sad, Serbia
| | - Senka Vidović
- Faculty of Technology, University of Novi Sad, Novi Sad, Serbia
| | | | | | - Dejan Gođevac
- Institute of Chemistry, Technology and Metallurgy, Belgrade, Serbia
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Sepulveda JL, Tanhehco YC, Frey M, Guo L, Cropcho LJ, Gibson KM, Blair HC. Variation in human erythrocyte membrane unsaturated Fatty acids: correlation with cardiovascular disease. Arch Pathol Lab Med 2010; 134:73-80. [PMID: 20073608 DOI: 10.5858/2008-0795-oar1.1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT Whether cell membrane fatty acid (FA) composition is a useful indicator of vascular disease is unclear. OBJECTIVE To study variation of erythrocyte (RBC) membrane FA in samples from healthy volunteers, hospitalized patients, and cardiac troponin I-elevated patients with myocardial damage without a priori assumptions as to FA composition. DESIGN We separated FAs extracted from RBCs by gas chromatography and identified them by mass spectrometry. Fatty acids with abundance greater than 1% of total were quantified and compared: hexadecanoic (C16:0), octadecadienoic (C18:2), cis- and trans-octadecenoic (C18:1), and eicosatetraenoic (C20:4) acids. Deuterated standards established proportionality of FA recovery. The cis- and trans-C18:1 identification was verified by comparison with standards. RESULTS In troponin-positive samples, C18:2 to C18:1 ratios were increased 30% compared with healthy controls or with random patient samples. Erythrocyte trans-C18:1 had a wide variation, approximately 10-fold, in all groups but without differences between groups. Replicates showed that the wide range of RBC trans-FA load is not due to analytic variation. In healthy subjects, the RBC content of lower- molecular weight FAs (C16-C18) correlated with serum low-density lipoprotein cholesterol, but despite the established relationship between dietary trans-FA and increased low-density lipoprotein cholesterol, lipid profiles had no correlation with RBC trans-FA content. CONCLUSIONS Erythrocyte accumulation of unsaturated FA may be a useful indicator of vascular disease, whereas the wide range in trans-FAs suggests that both diet and genetic variation affect RBC trans-FA accumulation. Unsaturated FAs increase membrane fluidity and may reflect a natural response to subclinical vascular changes, which may in turn reflect increased risk of clinical disease.
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Affiliation(s)
- Jorge L Sepulveda
- Department of Pathology & Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
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Dolegowska B, Kwiatkowska E, Wesolowska T, Bober J, Chlubek D, Ciechanowski K. Effect of Hemodialysis on the Content of Fatty Acids in Monolayers of Erythrocyte Membranes in Patients with Chronic Renal Failure. Ren Fail 2009; 29:447-52. [PMID: 17497467 DOI: 10.1080/08860220701260602] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Lipid metabolism disorders are found in patients with chronic renal failure (CRF). Changes in the content of fatty acids of the phospholipid fraction of erythrocyte membranes can lead to changes in the rheological properties. The objective of our study was to assess the effect of hemodialysis on the composition of fatty acids in two fractions of phospholipids: sphingomyelin (SPH, representative of the external monolayer) and phosphatidylethanolamine (PE, representative of the internal monolayer). Venous blood was drawn from patient with CRF before and after the HD procedure. Lipids from the erythrocyte stroma were extracted using the Rose and Oklander method and then were separated into phospholipid fractions using thin-layer chromatography (TLC). PE and SPH fractions were extracted, and the fatty acid profile was determined using gas chromatography (Perkin Elmer 8400; RTx 2330 column; length: 105 m). In the phospholipid fractions tested, a high content of saturated FA with a medium carbon chain (C 16:0 to C 18:2) and a long carbon chain such as C 24:0, C 24:1; C 22:6; and C 26:0 was found. The HD procedure affected the FA profile in the fractions tested. The proportion of saturated and unsaturated long-chain FA (above 18 C) increased in PE. However, the content of medium-chain FA C 16:0 to C 18:1 decreased. A significant decrease in the content of the majority of long-chain FA could be noted in SPH. The ratio of unsaturated (U) to saturated (S) fatty acids in the SPH fraction increased. Hemodialysis has a significant effect on the content of fatty acids in the PE and SPH fractions of erythrocyte membranes in patients with CRF.
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Affiliation(s)
- Barbara Dolegowska
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Szczecin, Poland.
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Persson SU. Blood pressure reactions to insulin treatment in patients with type 2 diabetes. Int J Angiol 2007; 16:135-8. [PMID: 22477329 PMCID: PMC2733033 DOI: 10.1055/s-0031-1278267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The initiation of insulin therapy may be easy and uncomplicated in some patients with type 2 diabetes, but in others, mainly in obese patients, problems often arise (ie, poor compliance, worsening B-cell function and/or insulin resistance). METHODS As a substudy of a broader investigation concerning hemorheological effects of insulin treatment in insufficiently controlled type 2 diabetes, blood pressure was recorded in 12 patients at baseline, after two months and after four months on insulin. RESULTS After two months on insulin, analyses of triglycerides, high-density lipoprotein cholesterol and total cholesterol indicated metabolic improvement (P<0.05 to 0.001) and a surprisingly uniform increase of blood pressure values (P<0.05 to 0.01) was found. At the same time, the serum sodium concentration increased (P<0.01) and was positively correlated to both systolic and diastolic blood pressure (P<0.01). After four months on insulin, blood pressure returned to pretreatment values or lower (P<0.05 to 0.01). Serum sodium also decreased to pretreatment values. No significant changes of the flow behaviour of blood were seen after the initiation of insulin. CONCLUSIONS The number of patients was small and the study was not primarily designed to examine blood pressure. The preliminary conclusion from the present study, however, is that the initiation of insulin treatment in poorly controlled type 2 diabetes causes a temporary and possibly clinically significant elevation of blood pressure. A change in renal treatment of sodium caused by insulin may be one of several possible explanations of the results, but further studies are warranted to confirm the findings.
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Affiliation(s)
- Sylvi U Persson
- Department of Clinical Physiology, County Hospital; School of Health Sciences and Social Work, Växjö University, Växjö, Sweden
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Abstract
UNLABELLED In Gaucher disease, a deficiency of glucocerebrosidase results in the accumulation of glucocerebroside within the lysosomes of the monocyte-macrophage system. Prior to the availability of enzyme replacement therapy (ERT), splenectomy was often indicated for hypersplenism. Haemorheological abnormalities could be expected in view of the anaemia and abnormal lipid metabolism in these patients and the role of the spleen in controlling erythrocyte quality. OBJECTIVES To investigate the effect of Gaucher disease on blood and plasma viscosity, erythrocyte aggregation and erythrocyte deformability, and to determine whether observed rheological differences could be attributed to splenectomy. METHODS Haematological and haemorheological measurements were made on blood collected from 26 spleen-intact patients with Gaucher disease, 16 splenectomised patients with Gaucher disease, 6 otherwise healthy asplenic non-Gaucher disease subjects and 15 healthy controls. RESULTS No haemorheological differences could be demonstrated between spleen-intact patients with Gaucher disease and the control group. Compared to controls, both asplenic Gaucher disease and asplenic non-Gaucher disease study groups had a reduced MCHC (P = 0.003 and 0.005, respectively) and increased whole blood viscosity at 45% haematocrit (Hct), relative viscosity and red cell aggregation index - all measured at low shear (P < 0.05 for all). Additionally, asplenic patients with Gaucher disease alone showed an increased MCV (P = 0.006), an increased whole blood viscosity at 45% Hct measured at high shear (P = 0.019), and a reduced relative filtration rate (P = 0.0001), compared to controls. CONCLUSION These observations demonstrate a direct and measurable haemorheological abnormality in Gaucher disease only revealed when there is no functioning spleen to control erythrocyte quality.
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Affiliation(s)
- Bridget E Bax
- Child Health, Department of Clinical Developmental Sciences, St George's, University of London, UK.
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Kempaiah RK, Srinivasan K. Influence of dietary spices on the fluidity of erythrocytes in hypercholesterolaemic rats. Br J Nutr 2005; 93:81-91. [PMID: 15705229 DOI: 10.1079/bjn20041317] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In rats rendered hypercholesterolaemic by maintaining them on a cholesterol-enriched diet (0.5 %) for 8 weeks, as a result of alteration in membrane structural lipids, erythrocytes were observed to be deformed and become more fragile. This deformity and fragility was partially reversed by the two dietary spice principles, curcumin and capsaicin, and the spice, garlic, by virtue of their ability to lower the extent of hypercholesterolaemia. A further insight into the factors that might have reduced the fluidity of erythrocytes in hypercholesterolaemic rats revealed changes in fatty acid profile of the membranes, phospholipid composition of the membrane bilayer, reduced Ca(2+),Mg(2+)-ATPase, and reduction in the sensitivity of erythrocytes to concanavaline A. Dietary capsaicin appeared to counter these changes partially in hypercholesterolaemic rats. Electron spin resonance (ESR) spectra and fluorescence anisotropy parameters also revealed altered fluidity of erythrocytes in hypercholesterolaemic rats. Dietary capsaicin and curcumin significantly reversed this alteration. Scanning electron microscopic examination revealed that the echinocyte population was increased in the erythrocytes of hypercholesterolaemic rats, and this was significantly countered by dietary capsaicin. The membrane protein profile and the active cation efflux appeared to be unaffected in the hypercholesterolaemic situation.
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Affiliation(s)
- Rayavara K Kempaiah
- Department of Biochemistry and Nutrition, Central Food Technological Research Institute, Mysore-570020, India
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WATANABE N, FUNAYAMA K, KIMURA F, ENDO Y, FUJIMOTO K, KIKUCHI Y. Effect of Dietary Supplementation of n-3 Polyunsaturated Fatty Acids (PUFA) on Red Blood Cell Deformability and Blood Viscosity in Rats. J Oleo Sci 2003. [DOI: 10.5650/jos.52.397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Nakamichi WATANABE
- Laboratory of Food and Bio-molecular Science, Graduate School of Agricultural Science, Tohoku University
- Department of Food Science and Nutrition, Faculty of Human Ecology, Showa Women’s University
| | - Katsura FUNAYAMA
- Laboratory of Food and Bio-molecular Science, Graduate School of Agricultural Science, Tohoku University
| | - Fumiko KIMURA
- Laboratory of Food and Bio-molecular Science, Graduate School of Agricultural Science, Tohoku University
| | - Yasushi ENDO
- Laboratory of Food and Bio-molecular Science, Graduate School of Agricultural Science, Tohoku University
| | - Kenshiro FUJIMOTO
- Laboratory of Food and Bio-molecular Science, Graduate School of Agricultural Science, Tohoku University
| | - Yuji KIKUCHI
- Microchannel Array Technology Team, National Food Research Institute
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Symeonidis A, Athanassiou G, Psiroyannis A, Kyriazopoulou V, Kapatais-Zoumbos K, Missirlis Y, Zoumbos N. Impairment of erythrocyte viscoelasticity is correlated with levels of glycosylated haemoglobin in diabetic patients. CLINICAL AND LABORATORY HAEMATOLOGY 2001; 23:103-9. [PMID: 11488849 DOI: 10.1046/j.1365-2257.2001.00366.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Erythrocytes from diabetic patients exhibit impaired viscoelastic properties when estimated by various methods. We determined erythrocyte filterability through 5-microm pores, in 51 patients with non-insulin-dependent diabetes mellitus, 18 healthy controls, 15 patients with homozygous beta-thalassemia and 15 with beta-thalassemia traits. The filtration measurements were made with a Hemorheometer, which uses the "initial flow rate" principle. To determine the Index of Rigidity (IR) of the red blood cells, we measured the passage time of white blood cell-free erythrocyte suspensions, 8% per volume, through the filter. Diabetic patients had significantly increased IR in comparison to healthy controls and to patients with beta-thalassemia trait, but not at the level found in patients with homozygous beta-thalassemia. In diabetic patients, a strong correlation between IR and the percentage of glycosylated haemoglobin was found (r=0.737, P < 0.0001), and a weaker one with serum unconjugated bilirubin (r=0.363, P=0.0097) and serum total lipids (r=0.321, P=0.0286). Patients with severe retinopathy also had significantly increased IR, in comparison to those with or without mild retinopathy. Anaemic diabetic patients, especially those with the anaemia of chronic disease, also had significantly increased IR in comparison to non-anaemic diabetics. No correlation between IR, MCV, MCH, MCHC, RDW, RBC morphology, serum LDH or the presence of erythrocyte inclusions after incubation with nitrous sodium solution was found. Our findings suggest that glycosylation of skeletal proteins probably contributes significantly to the increased membrane rigidity of diabetic erythrocytes.
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Affiliation(s)
- A Symeonidis
- Haematology Division, Department of Internal Medicine, University of Patras Medical School, 261 10, Patras, Greece.
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Okita M, Sasagawa T, Kotani M, Hayashi M, Yamashita H, Kimoto M, Suzuki K, Tsuji H, Tabei T. Green vegetable juice increases polyunsaturated fatty acid of erythrocyte membrane phospholipid in hypercholesterolaemic patients. Asia Pac J Clin Nutr 2000; 9:309-13. [DOI: 10.1046/j.1440-6047.2000.00161.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Pöschl JM, Paul K, Leichsenring M, Han SR, Pfisterer M, Bremer HJ, Linderkamp O. Effects of dietary supplementation of saturated fatty acids and of n-6 or n-3 polyunsaturated fatty acids on plasma and red blood cell membrane phospholipids and deformability in weanling guinea pigs. Lipids 1999; 34:467-73. [PMID: 10380118 DOI: 10.1007/s11745-999-0386-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The fatty acid composition of plasma cholesteryl esters, plasma phospholipids, red blood cell (RBC) membrane phosphatidylcholine (corresponding to the outer membrane leaflet), and phosphatidylethanolamine (corresponding to the inner membrane leaflet) was investigated in weanling guinea pigs fed with diets of cacao (saturated fatty acids), sunflower oil [n-6 polyunsaturated fatty acids (PUFA)] or fish oil (n-3 PUFA) for 20 wk. RBC deformation was measured by means of a cell-transit analyzer (filtration) and a cone-plate rheoscope. The contents of saturated fatty acids in plasma phospholipids and RBC membrane leaflets were similar in all three groups. Diets with sunflower oil resulted in a high content of linoleic acid in plasma cholesteryl esters and in the outer leaflet of RBC membranes. Fatty acids of fish oil were mainly incorporated in plasma phospholipids and in the inner leaflet of RBC membranes. The arachidonic acid content was high in all groups in the plasma phospholipids and in the inner leaflet. The n-6 and n-3 PUFA were mainly incorporated in the inner leaflet. In all groups the polyunsaturated/saturated fatty acid ratio and the total PUFA content were similar in the inner RBC membrane. The RBC filtration times and the RBC deformation indices were not affected by the dietary treatment.
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Affiliation(s)
- J M Pöschl
- Children's Hospital, Department of Pediatrics, University of Heidelberg, Germany.
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Fujita J, Tsuda K, Takeda T, Yu L, Fujimoto S, Kajikawa M, Nishimura M, Mizuno N, Hamamoto Y, Mukai E, Adachi T, Seino Y. Nisoldipine improves the impaired erythrocyte deformability correlating with elevated intracellular free calcium-ion concentration and poor glycaemic control in NIDDM. Br J Clin Pharmacol 1999; 47:499-506. [PMID: 10336573 PMCID: PMC2014185 DOI: 10.1046/j.1365-2125.1999.00934.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIMS To explore the mechanisms underlying the impaired erythrocyte deformability (RBC-df) in diabetic patients, the relationship between erythrocyte intracellular free calcium-ion concentration ([Ca2+]i) and RBC-df, and the effects of Ca2+-channel blocker on [Ca2+]i and RBC-df were evaluated. METHODS Forty-eight patients with NIDDM and 24 control subjects were enrolled in this study. [Ca2+]i was determined using fura-2, and RBC-df by filtration method expressed as Deformability Index (DI). Erythrocytes were treated with nisoldipine to evaluate the effects of a Ca2+-channel blocker. RESULTS [Ca2+]i was significantly higher (82.6 (78.0-87.2) vs 76.6 (74.3-81.2) nmol lRBC-1, P<0.001), and DI was significantly lower (0. 14 (0.09-0.28) vs 0.22 (0.16-0.28), P<0.01) in NIDDM than in controls. There was a significant correlation between HbA1c and [Ca2+]i (r=0.38, P<0.01), between HbA1c and DI (r=-0.51, P<0.01), and between [Ca2+]i and DI (r=-0.42, P<0.01). Stepwise multiple regression analysis revealed HbA1c and [Ca2+]i as independent determinants for the impaired RBC-df. Nisoldipine treatment in vitro significantly decreased [Ca2+]i, and significantly improved RBC-df. CONCLUSIONS These data indicate that the impaired RBC-df in NIDDM may at least partly be attributed to the elevated [Ca2+]i and poor glycaemic control. In addition, favorable effects of a Ca2+-channel blocker on both [Ca2+]i and RBC-df have been demonstrated.
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Affiliation(s)
- J Fujita
- Department of Metabolism and Clinical Nutrition, Kyoto University Graduate School of Medicine, Japan
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Persson SU, Larsson H, Odeberg H. Reduced number of circulating monocytes after institution of insulin therapy--relevance for development of atherosclerosis in diabetics? Angiology 1998; 49:423-33. [PMID: 9631887 DOI: 10.1177/000331979804900602] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Twelve patients with Type II diabetes mellitus, insufficiently controlled with oral hypoglycemic agents, were studied before, after 2 months, and after 4 months on insulin therapy. For comparison the same variables were also studied in 10 healthy subjects. From the start, in the diabetic group, the authors found alterations in the hemorheologic parameters indicated by increased values for whole blood viscosity, plasma viscosity, red cell transit time (RCTT), and decreased values for white cell initial relative filtration rate (IrFR). In hematologic parameters they found increased values for mean corpuscular volume (MCV), leukocyte count, counts of neutrophils and monocytes, and a decreased count of lymphocytes. They also found increased values in the lipid parameters P-triglycerides and Apo B/Apo A-I ratio, risk factors of coronary atherosclerosis. After 4 months of insulin treatment whole blood and plasma viscosity were still increased, but there was a partial improvement of lipoprotein abnormalities. Red and white cell filterability, however, tended to normalize. These results indicate that changes in blood cell filterability do not necessarily influence in vitro measurements of blood viscosity. The change in RCTT during the insulin treatment was associated with a decreased MCV and the change in white cell IrFR with a decrease in the number of monocytes. This change of white cell filterability during insulin therapy, probably due to a reduced number of monocytes, may be of interest in the study of atherosclerosis and circulatory disease in diabetics.
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Affiliation(s)
- S U Persson
- Department of Clinical Physiology, Central Hospital, Växjö, Sweden
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