Molecular Exclusion Electrophoresis of Human Serum Lipoproteins: Patterns in Control and Ischaemic Heart-Disease Populations

1977 ◽  
Vol 52 (1) ◽  
pp. 75-82
Author(s):  
J. Green ◽  
S. Carney
Keyword(s):  
Heart Disease ◽  
Ischaemic Heart Disease ◽  
Matched Control ◽  
Control Group ◽  
Low Density ◽  
Serum Lipoproteins ◽  
Young Males ◽  
Control Subjects ◽  
Elderly Males ◽  
The Difference

1. Electrophoresis of pre-stained lipoproteins on acrylamide-gel gradients has been carried out on serum from populations of control subjects and patients with ischaemic heart disease. The technique resolves components intermediate in position and, by inference, in size, between very-low-density and low-density lipoproteins. 2. These central band components were found in 37% of a control population but the incidence varied with age and sex, being lowest in young males and highest in elderly males. 3. The incidence of central band components in patients with ischaemic heart disease was 64% (males) and 71% (females), and the difference between these figures and those for matched control subjects was highly significant. The intensity of central band components in the group with ischaemic heart disease was significantly greater than in the control group. 4. The presence and intensity of central bands show positive correlation with serum cholesterol and triglyceride values, but many patients showing the phenomenon have normal lipid values. Of patients with ischaemic heart disease 31% showed central band components and had normal lipid values.

Plasma, platelet and erythrocyte glutathione peroxidases as risk factors in ischaemic heart disease in man

1992 ◽  
Vol 83 (3) ◽  
pp. 343-345 ◽  
Author(s):  
M. Porter ◽  
D. J. Pearson ◽  
V. J. Suarez-Mendez ◽  
A. D. Blann
Keyword(s):  
Risk Factors ◽  
Heart Disease ◽  
Glutathione Peroxidase ◽  
Ischaemic Heart Disease ◽  
Serum Lipid ◽  
Matched Control ◽  
Significant Risk ◽  
Control Subjects ◽  
Glutathione Peroxidases ◽  
And Control

1. Plasma, platelet and erythrocyte glutathione peroxidase activities and serum lipid concentrations were measured in patients with ischaemic heart disease and matched control subjects. 2. Mean plasma and platelet glutathione peroxidase activities were significantly lower in the patients with ischaemic heart disease. Erythrocyte glutathione peroxidase activities and serum lipid concentrations were similar in patients with ischaemic heart disease and control subjects. 3. No correlations between plasma, platelet and erythrocyte glutathione peroxidase activities were observed. 4. The combination of plasma and platelet glutathione peroxidase activities provided an 86% discrimination between patients with ischaemic heart disease and matched control subjects. 5. Our data suggest that plasma and platelet glutathione peroxidases may be significant risk factors for ischaemic heart disease. Plasma glutathione peroxidase is a previously unrecognized risk factor.

Elevated Tissue Factor and Tissue Factor Pathway Inhibitor Circulating Levels in Ischaemic Heart Disease Patients

1998 ◽  
Vol 79 (03) ◽  
pp. 495-499 ◽  
Author(s):  
Anna Maria Gori ◽  
Sandra Fedi ◽  
Ludia Chiarugi ◽  
Ignazio Simonetti ◽  
Roberto Piero Dabizzi ◽  
...  
Keyword(s):  
Heart Disease ◽  
Ischaemic Heart Disease ◽  
Tissue Factor ◽  
Plasma Levels ◽  
Tissue Factor Pathway Inhibitor ◽  
Common Source ◽  
Previous Myocardial Infarction ◽  
Control Subjects ◽  
Tissue Factor Pathway ◽  
Circulating Levels

SummarySeveral studies have shown that thrombosis and inflammation play an important role in the pathogenesis of Ischaemic Heart Disease (IHD). In particular, Tissue Factor (TF) is responsible for the thrombogenicity of the atherosclerotic plaque and plays a key role in triggering thrombin generation. The aim of this study was to evaluate the TF/Tissue Factor Pathway Inhibitor (TFPI) system in patients with IHD.We have studied 55 patients with IHD and not on heparin [18 with unstable angina (UA), 24 with effort angina (EA) and 13 with previous myocardial infarction (MI)] and 48 sex- and age-matched healthy volunteers, by measuring plasma levels of TF, TFPI, Prothrombin Fragment 1-2 (F1+2), and Thrombin Antithrombin Complexes (TAT).TF plasma levels in IHD patients (median 215.4 pg/ml; range 72.6 to 834.3 pg/ml) were significantly (p<0.001) higher than those found in control subjects (median 142.5 pg/ml; range 28.0-255.3 pg/ml).Similarly, TFPI plasma levels in IHD patients were significantly higher (median 129.0 ng/ml; range 30.3-316.8 ng/ml; p <0.001) than those found in control subjects (median 60.4 ng/ml; range 20.8-151.3 ng/ml). UA patients showed higher amounts of TF and TFPI plasma levels (TF median 255.6 pg/ml; range 148.8-834.3 pg/ml; TFPI median 137.7 ng/ml; range 38.3-316.8 ng/ml) than patients with EA (TF median 182.0 pg/ml; range 72.6-380.0 pg/ml; TFPI median 115.2 ng/ml; range 47.0-196.8 ng/ml) and MI (TF median 213.9 pg/ml; range 125.0 to 341.9 pg/ml; TFPI median 130.5 ng/ml; range 94.0-207.8 ng/ml). Similar levels of TF and TFPI were found in patients with mono- or bivasal coronary lesions. A positive correlation was observed between TF and TFPI plasma levels (r = 0.57, p <0.001). Excess thrombin formation in patients with IHD was documented by TAT (median 5.2 μg/l; range 1.7-21.0 μg/l) and F1+2 levels (median 1.4 nmol/l; range 0.6 to 6.2 nmol/l) both significantly higher (p <0.001) than those found in control subjects (TAT median 2.3 μg/l; range 1.4-4.2 μg/l; F1+2 median 0.7 nmol/l; range 0.3-1.3 nmol/l).As in other conditions associated with cell-mediated clotting activation (cancer and DIC), also in IHD high levels of circulating TF are present. Endothelial cells and monocytes are the possible common source of TF and TFPI. The blood clotting activation observed in these patients may be related to elevated TF circulating levels not sufficiently inhibited by the elevated TFPI plasma levels present.

scholarly journals Release of Cyclooxygenase-2 and Lipoxin A4 from Blood Leukocytes in Aspirin-exacerbated Respiratory Disease

2016 ◽  
Vol 7 (3) ◽  
pp. ar.2016.7.0172
Author(s):  
Ajnacska Rozsasi ◽  
Akos Heinemann ◽  
Tilman Keck
Keyword(s):  
Respiratory Disease ◽  
Mononuclear Cells ◽  
Cyclooxygenase 2 ◽  
Control Group ◽  
Peripheral Blood Mononuclear ◽  
Control Subjects ◽  
Aspirin Exacerbated Respiratory Disease ◽  
Blood Mononuclear Cells ◽  
Cox 2 ◽  
The Difference

Background The release of cyclooxygenase-2 (COX-2) and lipoxin A4 (LXA4) from blood mononuclear cells in patients with aspirin-exacerbated respiratory disease (AERD) is only partially understood. Objective To investigate the presence of COX-2 and LXA4 in peripheral blood mononuclear cells (PBMC) derived from patients with AERD and with nasal polyps (NP) (designated as the AERD-NP group), patients with NP without AERD (the NP group), and healthy controls without sinus disease (the control group). Methods Blood was taken from 14 patients in the AERD-NP group, 6 patients in the NP group, and 8 healthy subjects in the control group. After culturing of human PBMC, the presence of COX-2 protein and LXA4 (ELISA) was detected in the supernatant, and the results were compared among the groups. Results COX-2 and LXA4 were detectable after culturing of PBMC in all patients in the AERD-NP and NP groups and in the control subjects. COX-2 was highest in the patients in the AERD-NP group, but the difference was not significant compared with patients with non-AERD polyp and with the control subjects. LXA4 was also highest in the AERD-NP group, but the difference was also not significant compared with the patients who were non-AERD polyp and the control subjects. Conclusion Neither the release of COX-2 or LXA4 was different between the patients with AERD and with NPs, the patients without AERD and with NPs, and the healthy control group. The release of these proteins in AERD needs further investigation.

Platelet volume subpopulations in acute myocardial infarction: an investigation of their homogeneity for smoking, infarct size and site

1985 ◽  
Vol 68 (4) ◽  
pp. 419-425 ◽  
Author(s):  
Y. T. Kishk ◽  
E. A. Trowbridge ◽  
J. F. Martin
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Platelet Count ◽  
Heart Disease ◽  
Ischaemic Heart Disease ◽  
Mean Platelet Volume ◽  
Control Group ◽  
Disease Group ◽  
Platelet Volume ◽  
Asymptomatic Group

1. Mean platelet volume and count were measured in three groups: patients with acute myocardial infarction, a control group with myocardial ischaemia but no infarction and an asymptomatic group of young males. 2. Mean platelet volume was significantly larger in the myocardial infarction group compared with the ischaemic heart disease group or the asymptomatic group. 3. Two subpopulations were present within the myocardial infarction group. One subgroup had a large mean platelet volume and low count. The other subpopulation was indistinguishable, with regard to platelet count and mean volume, from the ischaemic heart disease group. 4. Over 60% of the myocardial infarction group lay in the area of high platelet volume and low count compared with 13% of the ischaemic heart disease control group and 38% of the asymptomatic group. Acute myocardial infarction is likely to be associated with a large mean platelet volume and low count compared with the ischaemic heart disease group. There is no statistical evidence that this condition is related to smoking or size and site of infarct. 5. This evidence suggests that large mean platelet volume and low platelet count could be a major risk factor for myocardial infarction.

Seroprevalence of Helicobacter pylori infection in patients with chronic nonspecific pharyngitis: preliminary study

2007 ◽  
Vol 122 (1) ◽  
pp. 61-64 ◽  
Author(s):  
İ Aladag ◽  
Y Bulut ◽  
M Guven ◽  
A Eyibilen ◽  
K Yelken
Keyword(s):  
Helicobacter Pylori ◽  
Treatment Strategies ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Control Groups ◽  
Chi Square ◽  
Control Subjects ◽  
The Difference ◽  
H Pylori ◽  
And Control

AbstractBackground and objectives:Chronic nonspecific pharyngitis is a chronic inflammation of the pharynx. It is found worldwide, and treatment is difficult. The underlying aetiopathogenesis is still controversial. The aim of this study was to investigate Helicobacter pylori seroprevalence in chronic nonspecific pharyngitis patients without other possible causative factors for chronic pharyngeal irritation and without H pylori gastric mucosal infection.Materials and methods:Forty-one patients with symptoms of chronic nonspecific pharyngitis and 30 healthy control subjects were enrolled in this prospective, controlled, clinical study. In both study and control groups, selected patients were shown to have gastric mucosa uninfected by H pylori, as demonstrated by the 14C-urea breath test. Comprehensive otorhinolaryngological examination did not elicit any factor contributing to the chronic pharyngeal complaint. Serum H pylori immunoglobulin G antibody titres were assayed using serum enzyme-linked immunosorbent assay. The difference between the study and control groups was analysed by the chi-square test (the likelihood ratio was used).Results:Thirty-two of the 41 patients (78 per cent) and 14 of the 30 control subjects (46.7 per cent) were found to be H pylori positive. Patients with chronic nonspecific pharyngitis were found to have a significantly higher rate of H pylori seropositivity than the control group (p = 0.016).Conclusion:These data may be important in developing future treatment strategies for chronic nonspecific pharyngitis.

The Relationship of Various Factors in the Pathogenesis of Atherosclerosis

1998 ◽  
Vol 4 (2) ◽  
pp. 105-110 ◽  
Author(s):  
Hüseyin Sönmez ◽  
Selma Süer ◽  
Turgut Ulutin ◽  
Emine Kökoglu ◽  
Nergiz Uçişik
Keyword(s):  
Coronary Heart Disease ◽  
Heart Disease ◽  
Plasminogen Activator ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Tissue Type ◽  
Control Group ◽  
Low Density ◽  
Lipid Parameters ◽  
Pai 1

In this study we investigated the levels of lipid parameters, fibronectin, tissue-type plasminogen activator and plasminogen activator inhibitor (t-PA-PAI-1) complex and si alidase in patients with coronary heart disease and a control group. Total cholesterol, triglyceride, low-density lipoprotein (LDL), and very-low-density lipoprotein (VLDL) cholesterol and lipoprotein Lp(a), levels in patients with coronary heart disease were found to be significantly higher than in the control group (p < .001). High-density lipoprotein (HDL) cholesterol levels in patient group were significantly lower than control group (p < .001). Plasma fibronectin and t-PA-PAI-1 complex levels in patients with coronary heart disease were found to be significantly higher than control group (p < .05 and p < .001, respectively). In addition, we found that serum sialidase levels in patients with coronary heart disease were significantly higher than in the control group (p < .001). The electrophoretic mobility of lipoproteins from patients with coronary heart dis ease was found to be greater than those from the control group. As a result Lp(a) may play an important role in the pathogen esis of atherosclerosis by causing foam cell formation because of interacting with LDL or fibronectin and by interfering with the fibrinolytic system because of binding to plasminogen re ceptors. In addition, modifications of Lp(a) (including desi alylation) may effect these events. Key words: Coronary heart disease—tPA-PAI-1 complex-Fibronectin-sialidase-Lipid parameters.

scholarly journals Prevalence of ischaemic heart disease and associations with serum lipoproteins in subjects aged 45 to 64 years. The Speedwell study.

Heart ◽  
1982 ◽  
Vol 47 (5) ◽  
pp. 483-489 ◽  
Author(s):  
D Bainton ◽  
C J Burns-Cox ◽  
P C Elwood ◽  
B Lewis ◽  
N E Miller ◽  
...  
Keyword(s):  
Heart Disease ◽  
Ischaemic Heart Disease ◽  
Serum Lipoproteins

scholarly journals Porphyromonas gingivalis Strain Variability and Periodontitis

1999 ◽  
Vol 37 (12) ◽  
pp. 4028-4033 ◽  
Author(s):  
Ann L. Griffen ◽  
Sharon R. Lyons ◽  
Mitzi R. Becker ◽  
Melvin L. Moeschberger ◽  
Eugene J. Leys
Keyword(s):  
Porphyromonas Gingivalis ◽  
Matched Control ◽  
Polyacrylamide Gel Electrophoresis ◽  
Clinical Samples ◽  
Control Group ◽  
Specific Primers ◽  
The Difference ◽  
Reference Strains ◽  
Highly Virulent ◽  
Strain Variability

To determine if there is variability in virulence among strains ofPorphyromonas gingivalis in human periodontitis, their distribution in a group of subjects with clear indicators of periodontitis and in a healthy, age-matched control group was examined. The presence of heteroduplex types of P. gingivalis in the two groups was determined with a PCR-based assay. This assay relied on detection of polymorphisms in the ribosomal internal spacer region (ISR). ISR fragments generated by PCR with P. gingivalis-specific primers were hybridized to fragments from reference strains, and the formation of heteroduplexes from the hybridization of nonidentical sequences was observed by polyacrylamide gel electrophoresis. Characteristic fingerprints from comparison with a panel of reference strains allowed the identification of heteroduplex types in clinical samples. One hundred thirty adults with periodontitis and 181 controls were sampled. With this approach, 11 heteroduplex types of P. gingivalis were detected in the population. Sufficient numbers were available for statistical analysis of six of these types. Heteroduplex type hW83 was found to be very strongly associated with periodontitis (P = 0.0000), and two additional types, h49417 and hHG1691, were also significantly associated with disease. The remaining types, h23A4, h381, and hA7A1, were detected more frequently in subjects with periodontitis than in healthy subjects, but the difference was not significant. These data indicate that virulence in human periodontitis varies among strains ofP. gingivalis, and they identify an apparently highly virulent subgroup.

scholarly journals EVALUATION OF INTRARENAL RESISTIVE INDEX BY DUPLEX COLOR DOPPLER ULTRASONOGRAPHY IN PATIENTS WITH DIABETIC NEPHROPATHY – COMPARISON BETWEEN HEALTHY ADULT CONTROL SUBJECTS

2019 ◽  
Vol 3 (8) ◽  
Author(s):  
MSI Tipu Chowdhury ◽  
Sadia Sultana ◽  
Md. Fakhrul Islam Khaled ◽  
Khaled Md. Iqbal ◽  
Sharmin Easmin
Keyword(s):  
Diabetic Nephropathy ◽  
Doppler Ultrasonography ◽  
Early Stage ◽  
Color Doppler ◽  
Left Kidney ◽  
Resistive Index ◽  
Control Group ◽  
Control Subjects ◽  
The Difference

Background: Renal Doppler Ultrasonography (USG) has become a useful adjunct to gray scale sonography in the evaluation of renal function in various pathophysiological conditions like diabetic nephropathy. We can diagnose diabetic nephropathy by serum creatinine level and creatinine clearance rate. But early stage diagnosis of diabetic nephropathy is not always possible. In this study we have focused on resistive index of interlobar arteries of kidney to see changes of renal parenchyma for early stage diagnosis of diabetic nephropathy. Objectives: To observe the difference between values of intrarenal resistive  index measured by duplex color Doppler USG in type 2 diabetic  patients having diabetic nephropathy and in healthy adult control subjects. Materials and methods: This cross sectional observational study was conducted in the Department of Radiology and Imaging, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh. 65 diabetic nephropathy patients were taken as study group and 65 healthy subjects were included as healthy control subjects. Duplex Color Doppler Ultrasonography of interlobar artery was carried out in both groups to measure the peak systolic velocity, the end diastolic velocity and arterial Resistive Index. Results: The Resistive Index of interlobar artery of left kidney in control group was 0.58±0.08 and the mean RI of interlobar artery of left kidney in diabetic nephropathy patients was 0.74±0.53. The difference of Resistive index of interlobar artery of left kidney in the two groups were statistically significant and the RI of right kidney of control & that of case groups were 0.60±0.09 and 0.76±0.03 respectively. In between control and case groups the RI of right kidney were statistically significant. So, resistive index of interlobar artery was increased in type 2 diabetic nrphropathy patients compared to control group. Conclusion: It can be concluded in present study that resistive index remains significantly higher in patients with diabetic nephropathy than in controls. Thus Duplex Doppler ultrasonography allows the rapid, noninvasive evaluation of the intrarenal vasculature and can be used as an easily available parameter of the evolution and a predictor in patients with clinical diabetic nephropathy. Keywords: Doppler Ultrasonography, Intrarenal Resistive Index, Diabetic Nephropathy

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