Enhanced enzymatic electrochemical detection of an organophosphate Pesticide: Achieving Wide linearity and femtomolar detection via gold nanoparticles growth within polypyrrole films.

The indiscriminate use of pesticides in agriculture demands the development of devices capable of monitoring contaminations in food supplies, in the environment and biological fluids. Simplicity, easy handling, high sensitivities, and low limits-of-detection (LOD) and quantification are some of the required properties for these devices. In this work, we evaluated the effect of incorporating gold nanoparticles into indigo carmine-doped polypyrrole during the electropolymerization of films for use as an acetylcholinesterase (AChE) enzyme-based biosensor.

Serum concentration of total sialic acids in patients with primary laryngeal carcinoma.

Unlabelled: SummaryPurpose. The aim of the study was to evaluate serum concentrations of total sialic acids (TSA) in patients with squamous cell carcinoma of the larynx preoperatively and 4 years postoperatively and to compare the results with the serum concentration of sialic acids in patients with non-neoplastic laryngeal lesions.

Methods: The study comprised 52 patients with squamous cell carcinoma of the larynx and 25 patients with non-neoplastic laryngeal lesions.

Concentration of hypoxia-inducible factor-1, glucose transporter 1 and vascular endothelial growth factor in tissue samples and serum in patients with primary laryngeal carcinoma.

Background: Markers of tumorigenesis are essential factors which may play a major role in the early detection of head and neck carcinoma.

Aims/objectives: To assess concentration of HIF-1, GLUT1 and VEGF in tissue samples and blood serum and its correlation to the tumour size, nodal disease, pathologic differentiation and patients' data.

Material And Methods: Fifty-two patients diagnosed with laryngeal carcinoma stage I-IV in which concentration of HIF-1, GLUT1 and VEGF was assessed in tissue samples and blood serum using immunoassay method.

[Hypertension--diagnosis, treatment and the effectiveness of the treatment of Polish population participating in the POL-MONICA program].

According to the POL-MONICA program basing on screening studies of random population samples of two Warsaw districts and the Tarnobrzeg provinceip the detectability of arterial hypertension (AH), the AH treatment fact, the effectiveness+ of AH treatment and the populational control of AH has been evaluated. The AH control was better in Warsaw (men 55%, women 73%) than in the Tarnobrzeg province (men 44%, women 65%). In both populations the control was better among women than among men and increased with the age of subjects investigated.

[Comparison of parameters and factors affecting the differences in obesity among urban population of Warsaw and the rural agricultural-industrial population of the Tarnobrzeg province].

Comparison of the parameters of obesity between two populations, urban from Warsaw and agricultural-industrial from Tarnobrzeg province revealed that skinfolds thickness, Quetelet index and body fat index, and per cent of overweight were statistically significantly higher in men from urban population. In the group of women these parameters were also statistically higher in Warsaw population with the exception of triceps skinfold and Quetelet index--differences of no statistical significance. There were also differences in the set of variables which correlate with the parameters of obesity between these two tested populations.

Somatomedins in aging and dementia disorders of the Alzheimer type.

Serum levels of somatomedins were determined in apparently healthy aged individuals and dementia patients primarily with clinically suspected Alzheimer type disorder. Serum somatomedin values, determined by radioreceptorassay and radioimmunoassay, fell with advancing age in normal subjects. A significant elevation in serum somatomedins was observed in dementia patients.