7 research outputs found

    Comparative analysis of the effectiveness of OWASP ZAP, Burp Suite, Nikto and Skipfish in testing the security of web applications

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    Application security is one of the key aspects necessary for its proper functioning. Ensuring security consists primarily in conducting regular penetration tests and checking the vulnerability of the application to various types of attacks. The recommended solution is to use tools dedicated to detecting security holes in applications. Choosing the right tool from among those available on the market can be difficult. This article presents a comparative analysis of the effectiveness of popular application security testing tools in terms of the number of detected vulnerabilities. The analysis was based on the obtained results of scanning two Internet applications containing a number of security vulnerabilities, used to learn ethical hacking

    Expression of galectin-3 in nephrotic syndrome glomerulopaties in children.

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    BACKGROUNDGalectins are a family of ancient animal carbohydrate binding proteins; the name is from their description as beta-galactoside-specific lectins. They have been strongly implicated in inflammation and cancer. Studies of the association of galectins with various aspects of kidney disease in humans are still at an early stage. In line with the above, the aim of the present report was to analyse the immunohistochemical expression of galectin-3 (the only chimera galectin currently identified) in renal biopsy specimens of children with idiopathic nephrotic syndrome (INS).PATIENTS AND METHODSEighteen children with minimal change disease (MCD), 30 with diffuse mesangial proliferation (DMP) and 11 with focal segmental glomerulosclerosis (FSGS) treated between 2003 and 2006 in the Department of Paediatric Cardiology and Nephrology, Poznan University of Medical Sciences. An indirect immunohistochemical protocol using a polyclonal rabbit antibody against human galectin-3 was employed.RESULTSIn the control, MCD and DMP children who responded to steroid therapy anti-galectin-3 reactivity was present both in renal cortex and medulla. It was the strongest within cortical collecting ducts and subjectively less expressed in distal tubules. The total number of galectin-3 positive cortical and medullary segments of collecting ducts was significantly higher in the subjects who did not respond to steroid therapy These patients revealed also immunohistochemical reactivity of galectin-3 within nuclei of individual glomerular mesangial cells (

    The effects of a physical exercise program on fetal well-being and intrauterine safety

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    Objectives: The aim of this study was to evaluate the effects of a supervised physical exercise program on fetal well-beingand intrauterine safety. Physical activity is recommended for healthy pregnant women. However, constant evaluation offetal condition and development is recommended to ensure the safety of the exercise program.Material and methods: Randomized control trial study design. Sixty-six healthy pregnant women (age 24–35) with singletongestation were randomly assigned to either an exercise group (EG, n = 34) or a non-active control group (CG, n = 32). Theexercise program included 81 sessions (moderate intensity, 3 times per week, 50–60 min/session from weeks 13 to weeks40/41 of pregnancy). Fetal well-being was assessed in weeks 32 and 37 of pregnancy. The cerebroplacental ratio (CPR) wascalculated to evaluate the safety of the exercise program for the fetus.Results: The differences in the CPR ratio measurements between EG and CG groups in week 37 (p < 0.05) were observed.The increase in the CPR ratio was also shown in week 37 of pregnancy in comparison to week 32 (p < 0.01). Moreover,maternal heart rate was significantly lower in the exercise group as measured at 37 weeks (p < 0.05).Conclusions: The results of this study confirm that regular and supervised exercise program throughout pregnancy doesnot affect fetal well-being and is safe for the fetus. Additionally, regular physical activity improves maternal physical fitnessand cardiac efficiency which might aid at preparing pregnant women for natural labor

    The significance of substance P in physiological and malignant haematopoiesis

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    The role of substance P (SP) in physiological haematopoiesis is well established. However, it also seems to be important in the neoplastic transformation of bone marrow, leading to the development of acute leukaemia in children, and also metastases to bone marrow of solid tumours (particularly neuroblastoma and breast cancer) in early stages of these diseases. This review summarises the available data on SP involvement in both processes. In the future, SP antagonists may be used as anti‐neoplastic drugs, for example by direct or indirect blocking of tumour cell proliferation through inhibition of growth factor production and interleukin‐1b synthesis

    Expression of galectin-3 in nephrotic syndrome glomerulopaties in children.

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    <strong>BACKGROUND</strong><br />Galectins are a family of ancient animal carbohydrate binding proteins; the name is from their description as beta-galactoside-specific lectins. They have been strongly implicated in inflammation and cancer. Studies of the association of galectins with various aspects of kidney disease in humans are still at an early stage. In line with the above, the aim of the present report was to analyse the immunohistochemical expression of galectin-3 (the only chimera galectin currently identified) in renal biopsy specimens of children with idiopathic nephrotic syndrome (INS).<br /><br /><strong>PATIENTS AND METHODS</strong><br />Eighteen children with minimal change disease (MCD), 30 with diffuse mesangial proliferation (DMP) and 11 with focal segmental glomerulosclerosis (FSGS) treated between 2003 and 2006 in the Department of Paediatric Cardiology and Nephrology, Poznan University of Medical Sciences. An indirect immunohistochemical protocol using a polyclonal rabbit antibody against human galectin-3 was employed.<br /><br /><strong>RESULTS</strong><br />In the control, MCD and DMP children who responded to steroid therapy anti-galectin-3 reactivity was present both in renal cortex and medulla. It was the strongest within cortical collecting ducts and subjectively less expressed in distal tubules. The total number of galectin-3 positive cortical and medullary segments of collecting ducts was significantly higher in the subjects who did not respond to steroid therapy These patients revealed also immunohistochemical reactivity of galectin-3 within nuclei of individual glomerular mesangial cells (p<0,001).<br /><br /><strong>CONCLUSIONS</strong><br />A suggested galectin-3 authority in mature human glomeruli during proteinuric glomerulopathies may indicate, on the one hand, its anti-inflammatory effect, but on the other can prognosticate a further glomerular reconstruction leading to FSGS. Taken together, both glomerular and extraglomerular galectin-3 immunoreactivity in certain DMP individuals could be regarded as the factor of unfavourable prognosis.<br /><br /&gt

    Vascular endothelial growth factor (VEGF)-C - a potent risk factor in children diagnosed with stadium 4 neuroblastoma.

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    To evaluate the immunohistochemical expression of VEGF-C, CD34 and VEGFR-2 in cancer tissue of children diagnosed with stadium 4 neuroblastoma (NB) and correlate their presence with the survival rate of children diagnosed with that stage of the disease. Eighteen children assigned to stadium 4 composed the study group. Fourteen patients (allocated to stadium 3) formed a control group. VEGF-C, CD34 and VEGFR-2 expressions were evaluated by immunohistochemical assay. Consecutive slides incubated with anti-CD34 and anti-VEGFR-2 antibodies revealed that the two markers were colocalized within endothelial layer of the blood vessels. On the other hand, VEGF-C was expressed exclusively in tumour cells. As demonstrated by Fisher's exact test, the risk of NB treatment failure (progression or relapse) as well as tumour related death, when all the patients were considered, was found to be significant in VEGF-C positive patients. VEGF-C expression in NB constitutes a potent risk factor and may direct future anti-angiogenic treatment strategy. The proximity of VEGF-C and CD34/VEGFR-2 of NB could be the equivalent of a potentially interesting VEGF-C fashion involving a tumour cell invasion into the blood vessels in an early phase of metastases promoting
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