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IL-2, IL-6 and IL-8 levels remain unaltered in the course of immunosuppressive therapy after renal transplantation

100%
Rysz J., Kocur E., Blaszczak R., Bartnicki P., Stolarek R., Piechota M.
Open Medicine
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2008
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vol. 3
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issue 2
199-202
EN
Cytokines regulate the immune reactions elicited by renal transplantation (RT). This study was designed to investigate the blood serum levels of IL-2, IL-6, IL-8 in 25 RT patients (10 female and 15 male, mean 5.4±2.7 yrs after RT) three times over a six-month period during standard immunosuppressive therapy with cyclosporine A, azathioprine and prednisolone. The levels of IL-2, IL-6 and IL-8 were tested with ELISA Quantikine Human Interleukin Immunoassay (R&D Systems, detection level 7,0.7 and 10 pg/cm3, respectively). There was no significant alternation of blood serum levels of IL-2, IL-6 and IL-8 in the study patients.
2
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Epicardial adipose tissue and relationship with coronary artery disease

100%
Silaghi A., Pais R., Valea A., Mironiuc A., Silaghi H.
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EN
Epicardial adipose tissue (EAT) is metabolically active tissue that accumulates around the coronary arteries. Epicardial fat is a rich source of free fatty acids and may contribute to local inflammatory load by increased synthesis of inflammatory cytokines. Direct passage of bioactive molecules into the coronary arteries due to close contact with the vascular wall and the lack of fascia may contribute to the pathogenesis of coronary artery disease. Direct correlation between visceral fat and EAT defines the latter as an indirect marker of intra-abdominal visceral adiposity. EAT is related to anthropometric and clinical features of the metabolic syndrome (MS) and to hepatic transaminases as markers of steatohepatitis. An increase in EAT thickness is related to an increase in left ventricular mass and is correlated with atrial enlargement and impairment in diastolic filling in obesity. Echocardiographic study of EAT is an easy and reliable imaging indicator of visceral adiposity and cardiovascular risk. EAT is an independent factor strongly correlated with significant coronary stenosis. A level of EAT above an established average value can be considered a predictive marker of cardiovascular risk. We review the most recent studies proving the specific active role of EAT in the development of cardiac disease.
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Effects of intra-arterial heparin on cytokine levels in the ischemic tissue

100%
Karapolat S., Erkut B.
Open Medicine
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2010
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vol. 5
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issue 2
165-171
EN
The purpose of this study was to evaluate the effects of systemic and intra-arterial application of heparin by measuring tissue levels of inflammatory cytokines. Twenty-one adult male Wistar albino rats were divided into three groups (Group A, B and C). All the rats had undergone ligation of the right femoral artery with 4-0 silk suture to induce limb ischemia. Group A was the control group. In Group B, unfractionated heparin of 1500 U/kg/day was given through the tail vein for 10 days, the same dose was given to distal part of ligated right femoral artery for 10 days in Group C. On the 3rd, 5th, and 10th days, biopsies were taken from rectus femoris muscle on the ischemic extremities. Tumor necrosis factor-α, interleukin-1β, and vascular cell adhesion molecule levels in muscle tissue were measured by a standard enzyme-linked immunoabsorbent assay method. An increase in tumor necrosis factor-α level was found in all three groups throughout the duration of the experiment. The increase in Group C was statistically significant as compared with the other groups. The significant increases that occurred in tumor necrosis factor-α level as a result of intra-arterial application of heparin can be postulated to be one of the results of angiogenesis induced by the heparin in ischemic extremities. This might delay the formation of a necrosis in ischemic extremities, depending on the increased angiogenesis response by means of intra-arterial heparin application and may result in extended vitality of an extremity.
4
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Immunopathogenesis of psoriatic arthritis: Recent advances

88%
Stavropoulos P., Goules A., Avgerinou G., Katsambas A.
Open Medicine
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2008
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vol. 3
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issue 3
245-253
EN
Psoriatic Arthritis (PsA) is a chronic inflammatory arthritis associated with psoriasis. The pathophysiology of PsA includes genetic, environmental and immunologic factors. Recent studies revealed the dynamic role of the immune system in the pathogenesis of the disease. Adhesion molecules, proinflammatory cytokines, angiogenic factors and metalloproteinases appear to orchestrate the inflammatory response in PsA. This article summarizes the current immunologic findings and suggests future therapeutic and researching approaches in the field of PsA.
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